👤 Peiying Yang

This study aims to establish a standardized mouse model of Alzheimer's disease(AD) with spleen-kidney deficiency and stagnant phlegm syndrome(AD-SKDSP) based on TCM theory, so as to provide a disease-syndrome combined model that aligns with the TCM diagnosis and treatment paradigm of "disease-syndrome-formula-efficacy" for modern research on AD prevention and treatment. Four-month-old male double-transgenic APP/PS1 mice were used as AD model animals. A standardized animal model of AD-SKDSP was constructed by high-sugar and high-fat diet feeding combined with ice-water bath and tail-clamping stimulation. The mice were randomly divided into an AD model group, an AD-SKDSP group, an AD Zhinao Capsule group, and a normal control group consisting of same-litter and age-matched male C57BL/6J mice. Corresponding drug treatments were administered at designated time points. During the eight-week modeling period, the following parameters were measured: physical sign scores, grip strength, body weight, 24-hour food intake, 24-hour fecal water content, female mouse fertility, Morris water maze performance, nose-tongue-collateral-foot color, hippocampus detected by hematoxylin-eosin(HE) staining, Aβ₍₁₋₄₂₎ and brain-derived neurotrophic factor(BDNF) detected by immunohistochemistry, whole blood and plasma viscosity, 2-hour D-xylose, testosterone(T), estradiol(E₂₎, calcium(Ca), phosphorus(P), bone Gla protein(BGP), hippocampal synapsin(SYN) and postsynaptic density protein 95(PSD-95) mRNAs, and SYN, PSD-95, and BDNF proteins. The results showed that by the end of the 4th week, compared with the normal control group, the AD model group, AD-SKDSP group, and AD Zhinao Capsule group exhibited progressively increased physical sign scores and 24-hour fecal water content, and progressively decreased grip strength, body weight, and 24-hour food intake(P<0.05, P<0.01). Compared with the AD model group, the AD-SKDSP group and AD Zhinao Capsule group showed significantly increased physical sign scores and 24-hour fecal water content, along with significantly reduced grip strength, body weight, and 24-hour food intake(P<0.05, P<0.01). From the 5th week onward, compared with the AD-SKDSP group, the AD Zhinao Capsule group demonstrated significant reductions in physical sign scores and 24-hour fecal water content, as well as significant increases in grip strength, body weight, and 24-hour food intake with prolonged intragastric administration of Zhinao Capsule(P<0.05, P<0.01). By the end of the 8th week, compared with the normal control group, the AD model group and AD-SKDSP group exhibited significantly decreased female fertility, corrected R/G/B values of nose-tongue-collateral-foot, hippocampal BDNF expression, levels of 2-hour D-xylose, T, E₂, Ca, P, and BGP, hippocampal SYN and PSD-95 mRNA expression, and SYN, PSD95, and BDNF protein expression. Meanwhile, platform latency, hippocampal Aβ₍₁₋₄₂₎ expression, and whole blood and plasma viscosity(low, medium, and high shear rates) were significantly increased, while platform crossings and target quadrant swimming time were markedly reduced(P<0.05, P<0.01). Hippocampal CA1 neurons in these groups displayed partial loss of normal morphology, with pyknotic or swollen nuclei, deep blue staining, disorganized distribution, and a thickness of "3-5" layers. Compared with the AD model group, the AD-SKDSP group showed significant reductions in female fertility, corrected R/G/B values of nose-tongue-collateral-foot, hippocampal BDNF expression, levels of 2-hour D-xylose, T, E₂, Ca, P, and BGP, hippocampal SYN and PSD-95 mRNA expression, and SYN, PSD95, and BDNF protein expression, significant increases in platform latency, hippocampal Aβ₍₁₋₄₂₎ expression, and whole blood and plasma viscosity(low, medium, and high shear rates), and significant decreases in platform crossings and target quadrant swimming time(P<0.05, P<0.01). The hippocampal CA1 neurons exhibited irregular shapes, increased nuclear pyknosis, intensified deep blue staining, a thickness of "1-3" layers, and chaotic distribution. Compared with the AD-SKDSP group, the AD Zhinao Capsule group demonstrated significant increases in female fertility, corrected R/G/B values of nose-tongue-collateral-foot, hippocampal BDNF expression, levels of 2-hour D-xylose, T, E₂, Ca, P, and BGP, hippocampal SYN and PSD-95 mRNA expression, and SYN, PSD95, and BDNF protein expression, significant decreases in platform latency, hippocampal Aβ₍₁₋₄₂₎ expression, and whole blood and plasma viscosity(low, medium, and high shear rates), and significant increases in platform crossings and target quadrant swimming time(P<0.05, P<0.01). The hippocampal CA1 neuronal pathology was markedly alleviated. In summary, guided by the holistic concept and syndrome differentiation theory of TCM and on the basis of characteristics of "spleen deficiency", "kidney deficiency", and "intermingled phlegm and blood stasis", this study successfully established a standardized AD-SKDSP animal model by combining a high-sugar and high-fat diet with ice-water bath and tail-clamping stimulation for eight weeks. This modeling method exhibits strong controllability, minimal physicochemical stimulation, reproducibility, and verifiability, providing a stable and standardized disease-syndrome combined animal model for future research on the "disease-syndrome-formula-efficacy" paradigm in AD-SKDSP. Show less

The brain-derived neurotrophic factor ( A total of 43 first-episode mania patients (FEM), 110 multiple-episode mania patients (MEM) and 80 healthy controls were enrolled in our study. We investigated the impact of We found a significant interaction between This is the first study to demonstrate that The online version contains supplementary material available at 10.1186/s12888-026-07949-7. Show less

To analyse the effects of noise exposure in emergency resuscitation rooms (ERRs) on cognitive function and hyperalgesia in patients with trauma. Clinical data from 110 patients with trauma who were treated in the ERR of Suizhou Central Hospital between June 2022 and July 2023 were retrospectively analysed. Participants were divided into the following two groups on the basis of real-time noise monitoring: the high-noise-exposure (n = 85) and low-noise-exposure (n = 25) groups. Neuron-specific enolase (NSE), brain-derived neurotrophic factor (BDNF), homocysteine (Hcy), the Mini-Mental State Examination (MMSE), and the Montreal Cognitive Assessment (MoCA) were used to measure cognitive performance. Mechanical pain threshold and serum nerve growth factor (NGF), substance P (SP), calcitonin gene-related peptide (CGRP) and 5-hydroxytryptamine (5-HT) levels were applied to assess hyperalgesia. Pearson correlation was employed to investigate the connections between noise levels and outcome factors. The high-noise-exposure group demonstrated significantly lower MMSE scores, MoCA scores and serum BDNF levels but higher serum NSE and Hcy levels compared with the low-noise-exposure group (P < 0.05). Additionally, compared with the low-noise-exposure group, the high-noise-exposure group exhibited larger mechanical hyperalgesia areas around incisions and on the volar forearm, as well as elevated serum CGRP, NGF and SP levels, while showing reduced mechanical pain thresholds and lower serum 5-HT levels (P < 0.05). Pearson analysis revealed that noise exposure values had negative correlations with mechanical pain threshold, MMSE and MoCA scores and serum BDNF and 5-HT levels (r < 0, P < 0.05) but positive correlations with mechanical hyperalgesia area and serum CGRP, NSE, Hcy, NGF and SP levels (r > 0, P < 0.05). High noise exposure in ERRs may be associated with cognitive dysfunction and hyperalgesia in patients with trauma. Clinical management should recognise and control noise levels in these settings. Show less

The underlying mechanisms for exacerbated brain injury and poor recovery observed in patients with diabetes and ischemic stroke (IS) remain undetermined. We explored the role of microRNA-34a (miR-34a) in diabetic IS (DMIS) and ischemic postconditioning (IPOC)'s neuroprotective effects in tree shrews. We established a tree shrew DMIS model and exposed it to interventions, including miR-34a inhibition (antagomir), IPOC, and miR-34a overexpression (agomir). Infarct size and pathology were assessed via staining. Cellular/molecular changes (astrocytes, neurons, brain-derived neurotrophic factor [BDNF], Sine oculis homeobox 3 [SIX3], proliferation, apoptosis, axon formation) were analyzed using immunofluorescence, polymerase chain reaction (PCR), and Western blotting. In vitro, miR-34a's targeting of BDNF/SIX3 was validated, with rescue experiments testing regulation via these factors. Infarct size and neuronal damage were greater in the DMIS group than in the nondiabetic IS group. miR-34a inhibition or IPOC reduced infarcts, alleviated injury, improved cell survival, upregulated BDNF/SIX3, enhanced proliferation/axon formation, and reduced apoptosis. miR-34a overexpression reversed IPOC's benefits. In vitro, miR-34a directly targeted BDNF/SIX3, suppressing their expression; exogenous BDNF/SIX3 rescued neurotoxicity and restored function. IPOC exerts partial neuroprotection through miR-34a downregulation, highlighting miR-34a as a potential therapeutic target. Show less

Autism spectrum disorder (ASD) is a type of neurodevelopmental disorder that occurs most frequently in early childhood, affecting approximately 1% of the global population. Currently, the elusive nature of the pathological mechanisms underlying ASD precludes the existence of a definitive, effective treatment approach. In this study, we have successfully generated a novel ASD rat model utilizing CRISPR/Cas9 technology, offering a promising platform for further investigation and potential therapeutic interventions. The model is characterized by two crucial point mutations occurring at key enzyme cleavage sites of brain-derived neurotrophic factor (BDNF), thereby causing disruptions in enzyme cleavage processes. The phenotypes of this rat model faithfully recapitulate the salient deficits frequently encountered in ASD patients, exhibiting impairments in social behavior, cognition, and anxiety, along with neuronal abnormalities with key brain regions, notably the hippocampus (HPC) and medial prefrontal cortex (mPFC). Through preliminary RNA-seq analysis, we found changes in gene expression patterns related to synapses and neuronal excitability in these areas, providing new insights into the pathogenesis of ASD. Furthermore, our utilization of 7,8-dihydroxyflavone (7,8-DHF), a robust enhancer for the upregulation of both BDNF and TrkB mRNA and simultaneously activates the BDNF-TrkB signaling pathway, appears to strengthen the BDNF-TrkB signaling cascade. This intervention modifies firing patterns of neuronal spikes and synaptic transmission, which may contribute to the amelioration of ASD-like social interaction behavior exhibited in BDNF Show less

Evidence proved that electroacupuncture (EA) combined with antidepressants can improve the antidepressant effectiveness for depressed patients. However, the clinical mechanisms of EA remain unclear. This study aimed to observe the mechanism of EA as an adjunct therapy to escitalopram oxalate (EO) on depressed patients. This study was designed as a single-blinded, double-dummy randomized controlled trial. 61 participants were diagnosed with mild-to-moderate depression according to the International Classification of Diseases 10th Edition (ICD-10, F32) were randomly allocated to receive EA + EO placebo, EO + sham EA, or EA + EO for six weeks treatment. The clinical assessment including depression severity, quality of life (QOL) and clinical safety. Biological indicators of immune-inflammation, the brain-derived neurotrophic factor and glucocorticoid inducible genes in peripheral blood of participants were measured by using enzyme linked immunosorbent assay and real-time polymerase chain reaction respectively before and after treatment. Three interventions improved the depression severity and QOL (P < 0.05), and no inter-group difference was found in the 6th week (P > 0.05). Anxiety psychic and somatic general symptoms in the EA + EO group were improved significantly than those of the other two groups (P < 0.05). After six-week treatment of EA + EO, blood SGK1 mRNA, GILZ mRNA, and BDNF levels were increased significantly ( Show less

The Angelica sinensis and Ligusticum chuanxiong Herb Pair (DC) serves as a core pairing in Traditional Chinese Medicine for treating blood stasis and blood deficiency syndromes, which are frequently associated with depressive-like symptoms in clinical practice. The antidepressant potential of this combination aligns with its traditional functions of promoting qi circulation, activating blood flow, and alleviating depression. This study aims to investigate the antidepressant effects of DC and its potential mechanisms through a combination of network pharmacology prediction and in vitro and in vivo experimental validation. Network pharmacology screening identified active components and target molecules in DC, constructing a component-target network and validating binding activity through molecular docking. A CUMS-induced rat model of depression was established, with drug efficacy evaluated via behavioral tests (forced swim, sucrose preference, and open field tests) and blood rheology parameters measured. ELISA assay of neurotransmitter and inflammatory factor levels in serum and hippocampal tissue, Observation of histopathological changes in hippocampal tissue using HE and Nissl staining, Western blot and immunofluorescence assays were performed to detect the expression of proteins in the PI3K/AKT pathway. An in vitro inflammatory model was established by inducing BV-2 cells with LPS. The MTT assay was used to screen for the safe concentration of drug-containing serum and observe cell morphology, the Gries method for detecting NO release, ELISA for detecting inflammatory cytokines, Western blot analysis of PI3K/AKT pathway proteins was performed, and pathway inhibition was validated using LY294002. Through network pharmacology analysis, seven major active components of DC and 197 related functional targets for depression treatment were identified, with the majority enriched in the PI3K/AKT signaling pathway. Behavioral studies and in vivo experiments indicate that DC significantly ameliorates depressive-like behaviors in CUMS rats, reduces blood viscosity, increases hippocampal tissue levels of 5-HT, NE, and DA, decreases IL-1β, IL-6, and TNF-α content, and mitigates hippocampal neuronal damage. Western blot and immunofluorescence results indicate that DC can activate the PI3K/AKT pathway, upregulating p-AKT and BDNF expression. In vitro experiments further confirmed that the drug-containing serum could suppress LPS-induced inflammatory responses in BV-2 cells, reducing the release of factors such as NO and IL-1β. This effect was reversible upon treatment with the PI3K inhibitor LY294002. DC exhibits potent antidepressant effects by modulating the PI3K/AKT pathway to enhance neurotransmitter release and reduce inflammatory factor levels. This mechanism protects neurons and alleviates neuroinflammation, thereby exerting antidepressant effects. Show less

Post-stroke depression (PSD) affects 29-52% of stroke survivors, with inflammation as a key pathophysiological mechanism. Hyperbaric oxygen therapy (HBOT) may modulate neurorestoration, but clinical evidence is limited. While meta-analytic evidence suggests HBOT may benefit PSD symptoms, high-quality randomized controlled trials employing rigorous sham-control and concurrently investigating neurotrophic mechanisms remain scarce. In this randomized, double-blind, sham-controlled trial, 61 PSD patients were allocated to HBOT (n=29) or Sham-HBOT (n=32) groups, respectively. HAMD, NIHSS and MBI scores and serum Brain-Derived Neurotrophic Factor (BDNF), and beta-Nerve Growth Factor (beta-NGF), were evaluated at baseline as well as 2 and 4 weeks after HBOT intervention. The primary outcome was the change in the 17-item Hamilton Depression Rating Scale (HAMD-17) score from baseline to week 4, analyzed in the modified intention-to-treat population. The trial was registered (ChiCTR2100053522). HAMD scores decreased significantly in the HBOT group vs sham-group at weeks 2 (p=0.017) and 4 (p<0.01). Serum BDNF and beta-NGF, levels were significantly elevated in the HBOT group (all p<0.01). Reductions in HAMD scores correlated with increases in BDNF (r = 0.66, p < 0.05) and beta-NGF (r = 0.47, p =0.01). HAMD scores decreased significantly in the HBOT group compared to the sham-group, with the between-group difference reaching significance at week 2 (p=0.017) and week 4 (p<0.001). Exploratory subgroup analyses by stroke type (ischemic vs hemorrhagic) and age (dichotomized at the median of 65 years) were conducted and these analyses revealed no significant interaction between treatment group and either stroke subtype or age subgroup on the change in HAMD-17 scores (all p > 0.05), suggesting a consistent trend of HBOT effect across these subgroups within this limited sample. This preliminary trial suggests that a 4-week course of HBOT may alleviate depressive symptoms in PSD patients, an effect associated with increased serum BDNF and β-NGF levels. Given the limited sample size and short follow-up, its long-term efficacy and clinical positioning require validation in larger trials with extended follow-up. Show less

Adverse childhood experiences (ACEs) increase susceptibility to depression and anxiety disorders in adulthood. This study investigated the potential mechanisms through which ACEs enhance vulnerability to depression and anxiety in adulthood, using a novel "two-hit" mouse model by combining maternal separation (MS) with 14 or 21 days of restraint stress (RS). Behavioral assessments (sucrose preference test, tail suspension test, open field test, elevated zero maze) confirmed depressive- and anxiety-like behaviors in the MS + RS 21d group mice. Neurobiological analyses revealed hyperactivity of the hypothalamic-pituitary-adrenal (HPA) axis (elevated serum corticosterone [CORT] and adrenocorticotropic hormone [ACTH]) and dysregulation, characterized by reduced levels of monoamine neurotransmitters (5-hydroxytryptamine [5-HT], 5-hydroxyindoleacetic acid, dopamine, norepinephrine), altered mRNA expression of key genes (e.g., increased ACTH, CRH, SERT; decreased GR, brain-derived neurotrophic factor [BDNF]), and corresponding protein-level changes (e.g., increased 5-HT1AR, CRHRs; decreased BDNF, TrkB). Our findings indicate that the two-hit mouse model, combining MS with a 21-day RS, stably induces depressive- and anxiety-like behaviors in mice. The underlying mechanism may be associated with HPA axis dysfunction, serotonergic system dysregulation, and aberrant BDNF signaling within the prefrontal cortex-amygdala-hypothalamus circuit. Show less

Programmed Cell Death 4 (PDCD4) is a multifunctional regulator with critically divergent, context-dependent roles: it acts as a tumor suppressor in neuro-oncology but a pathogenic driver in neuroinflammatory and degenerative conditions. Elucidating this functional duality is clinically relevant because PDCD4 dysregulation directly contributes to disease progression in both contexts. Its dual role is governed by disease-specific molecular environments, differential downstream mRNA targeting, and dynamic regulation of its expression and interactions. In gliomas, PDCD4 is frequently downregulated via promoter methylation, non-coding RNA inhibition (e.g., miR-21), and signaling pathway dysregulation (e.g., FAT1-STAT1 axis)-compromising key anti-tumor functions including cell cycle arrest, apoptosis induction, negative regulation of autophagy-lysosomal activity, and reversal of therapy resistance. Conversely, in conditions such as neural injury, neurodegenerative diseases, and mood disorders, PDCD4 is pathologically upregulated. Here, it exacerbates damage by driving the activation of pro-inflammatory pathways (e.g., MAPK/NF-κB, NLRP3 inflammasome), inducing neuronal death (apoptosis/ferroptosis), and impairing repair processes such as axonal growth by suppressing neurotrophic factors like brain-derived neurotrophic factor (BDNF). A multilayered regulatory network centered on miRNA-mediated control (notably miR-21), and expanded by epigenetic modifications and competitive endogenous RNA mechanisms, orchestrates its context-specific expression and activity. Current research gaps include an incomplete understanding of regulatory synergies, cell-type-specific functions, and key molecular interactions. Future studies employing multi-omics and cell-specific tools are needed to decipher these mechanisms and develop targeted therapeutic strategies. Show less

Substance use disorders (SUDs) present a global health challenge with high relapse rates. Emerging evidence implicates gut microbiota dysbiosis in SUD pathophysiology via the gut-brain axis. This 24-week randomized controlled trial investigated whether precision exercise interventions could modulate the gut microbiota-emotion axis to improve psychological outcomes in individuals undergoing compulsory drug rehabilitation. Thirty male participants were randomized to a precision exercise group (n = 15; individualized aerobic + resistance training, 4-5 sessions/week) or control group (n = 15; standard rehabilitation activities). Multi-dimensional assessments included weekly fecal (16S rRNA sequencing), urine (SCFAs via GC-MS), and saliva samples (cortisol, serotonin, BDNF via ELISA), alongside psychological evaluations (SCL-90-R, POMS) and physiological measures. The exercise group exhibited significant increases in gut microbial diversity (Shannon index: +18.2%, p < 0.001; Cohen's d = 2.14) and enrichment of beneficial taxa (e.g., Faecalibacterium, Bifidobacterium; LDA >3.5). Urinary SCFAs increased markedly (butyrate: 3.12-fold, p < 0.001), correlating with elevated salivary BDNF (+82%, p < 0.001) and reduced cortisol (-41.1%, p < 0.001). Psychological outcomes improved substantially: SCL-90-R Global Severity Index decreased by 43.3% (p < 0.001), and 78.6% of exercise participants achieved clinically meaningful improvement. Machine learning models predicted treatment response (AUC = 0.91) using baseline microbiome features. Precision exercise restores gut microbiota homeostasis, enhances neuroactive metabolite production, and improves emotional regulation in SUD recovery. The gut microbiota-emotion axis represents a viable target for non-pharmacological interventions, with microbiome profiles enabling personalized treatment strategies. Show less

Anorexia nervosa (AN) is a debilitating, often lethal, restrictive-type eating disorder without an effective cure. The underlying neural basis of AN has remained elusive without an animal model that has represented all typical AN symptoms. Here we show that aberrant activation of mediobasal hypothalamic (MBH) glutamatergic neurons led to lethal self-starvation, hyperactivity, anhedonia, social phobia, and increased anxiety, all of which represent typical symptoms of AN. These symptoms were selectively exhibited by targeted activation of MBH neurons expressing steroidogenic factor (SF1) and estrogen receptor alpha (ERa). Moreover, the elicited AN symptoms by activation of MBH glutamatergic or SF1/ERa neurons were rescued by removing release of glutamate or brain-derived neurotrophic factor (BDNF) from these neurons. Importantly, BDNF overexpression in SF1/ERa neurons promoted typical AN symptoms, which were suppressed by removing glutamate release. Thus, our findings identify aberrantly enhanced BDNF and consequent augmented glutamate release from SF1/ERa neurons as a neural basis underlying AN. Show less

To investigate the effect of pterostilbene (PTE), a natural dimethyl ether analog of resveratrol with higher bioavailability, on cognitive recovery after cerebral ischemia reperfusion (IR) injury and its potential mechanisms. Mice were subjected to middle cerebral artery occlusion and assigned to Sham, IR, PTE+IR, and PTE+Zinc Protoporphyrin (ZnPP)+IR groups. Cognitive function was assessed using the Morris water maze. Cerebral infarct volume was evaluated by 2,3,5-triphenyltetrazolium chloride (TTC) staining, and neuronal apoptosis was determined via TUNEL assay. The protein levels of postsynaptic density protein 95 (PSD-95), phosphorylated cAMP response element-binding protein (p-CREB), brain-derived neurotrophic factor (BDNF), and histone deacetylases (HDACs) in the hippocampus were measured by western blot. PTE treatment significantly reduced cerebral infarct volume, alleviated cognitive deficits, and inhibited neuronal apoptosis in the hippocampus. At the molecular level, PTE up-regulated the expression of PSD-95, p-CREB, and BDNF, while down-regulating HDAC (1, 2, 3, 4, 7) levels. The beneficial effects of PTE were partially reversed by the HO-1 inhibitor ZnPP. PTE ameliorates cognitive impairment induced by cerebral IR injury, potentially through activating the BDNF/CREB pathway and inhibiting HDAC expression. This suggests PTE as a promising neuroprotective agent for post-stroke cognitive recovery. Show less

In this study, we investigated the effects and molecular mechanisms by which Scutellaria barbata flavonoids (SBFs) enhance neurogenesis and ameliorate memory impairment mediated by CREB phosphorylation in rats, using a network pharmacology approach. The active ingredients of SBFs and their targets were identified using the Traditional Chinese Medicine Systems Pharmacology platform. An Alzheimer's disease (AD) model was established by intracerebroventricular injection of Aβ25-35 combined with AlCl₃ and RHTGF-β1 (composited Aβ) in rats. The Morris water maze was used to confirm the successful establishment of the AD rat model. Successfully modeled rats were randomly divided into three groups: a model group and two treatment groups receiving either 140 mg/kg SBFs or 0.5 mg/kg Rolipram (positive control). After 38 days, the Morris water maze test was performed to assess learning and memory abilities. Hematoxylin-eosin (HE) staining, immunohistochemistry, quantitative PCR (qPCR), and Western blotting (WB) were conducted to evaluate neuronal morphology, NeuN protein expression, the mRNA levels of TrkB, RSK, CREB, and BDNF, and the protein expression of NeuN, TrkB, RSK, P-CREB-Ser133, and BDNF in the hippocampus and cerebral cortex of the rats. These results indicate that SBFs and Rolipram ameliorate learning and memory impairment, reduce neuropathological changes, promote neurogenesis, and upregulate the BDNF- RSK-CREB signaling pathway through the activation of CREB phosphorylation. The findings suggest that the effects of SBFs are similar to those of Rolipram and that SBFs may also act as activators of CREB phosphorylation. Overall, SBFs promote neurogenesis and improve learning and memory deficits, possibly by enhancing CREB phosphorylation. This study identified the key targets and signaling pathways of SBFs in AD, indicating that SBFs represent a promising multitarget therapeutic candidate for the treatment of AD. However, our research has some limitations. Further studies are needed to determine the absorption route, major active components, and metabolic forms of the bioactive substances in SBFs. In future work, we aim to clarify the potential mechanisms of SBFs in AD by integrating multiple omics approaches and to evaluate the safety and efficacy of SBFs in AD treatment. Thirty-seven targets were identified based on the intersection between AD-related targets and the components of SBFs. SBFs were involved in anti-AD activity through the MAPK signaling pathway, including the BDNF-RSK-CREB pathway. SBFs attenuated memory impairment, ameliorated neuropathological changes, increased NeuN protein expression, and regulated the mRNA expression of TrkB, RSK, CREB, and BDNF, as well as the protein expression of NeuN, TrkB, RSK, P-CREB-Ser133, and BDNF. Rolipram produced similar effects to SBFs. Network pharmacology analysis and animal experiments confirmed that SBFs promote neurogenesis and ameliorate learning and memory impairment in AD model rats, primarily by facilitating CREB phosphorylation, similar to Rolipram. This study indicates that SBFs may be a promising therapeutic candidate for the treatment of AD. Show less

Post-stroke seizures are a common and debilitating complication with limited therapeutic options, underscoring the need to identify novel molecular targets. Disruption of chloride homeostasis via impaired potassium chloride cotransporter 2 (KCC2) activity is a key driver of neuronal hyperexcitability. While microglia are a predominant source of brain-derived neurotrophic factor (BDNF) in the acute phase after brain injury, the role of microglial BDNF and its signaling in KCC2 dysregulation and early post-stroke seizure susceptibility remain poorly defined. Using a middle cerebral artery occlusion-reperfusion (MCAO-R) mouse model and oxygen-glucose deprivation/reoxygenation (OGD/R) in hippocampal neurons, we assessed KCC2 function, neuronal excitability, and seizure susceptibility. Pharmacological tools, including the microglial inhibitor minocycline, the TrkB antagonist K252a, the loop diuretic furosemide (FUR), repurposed here as a KCC2-stabilizing agent, and the KCC2 activator CLP290, were employed. Techniques included immunofluorescence, Western blotting, patch-clamp electrophysiology, electroencephalography (EEG), and behavioral seizure assessment. MCAO-R and OGD/R significantly reduced membrane KCC2 expression, leading to a depolarizing shift in the GABA equilibrium potentials (E Our findings identify microglia-derived BDNF/TrkB signaling as a critical upstream pathway mediating KCC2 dysfunction in early post-stroke seizure. Targeting this axis by inhibiting microglial activation, blocking TrkB, or directly enhancing KCC2 function with activators like CLP290 represents a promising therapeutic strategy for stroke-related epilepsy. Show less

The pituitary gland plays a pivotal role in regulating puberty and reproductive physiology; however, the precise cellular and molecular mechanisms driving the pubertal transition in large animal, such as ewes, remain poorly understood. Here, we generated a comprehensive single-cell transcriptomic atlas of the ovine anterior pituitary, specifically comparing the pre-pubertal (3 month) and post-pubertal (6 month) stages. We identified 30 335 cells classified into ten distinct clusters. Comparative analysis revealed a global transcriptional reprogramming during puberty, characterized by a marked upregulation of genes associated with ribosome biogenesis, unfolded protein response, and hormone secretion across endocrine cells, reflecting an expanded biosynthetic capacity. Specifically, we identified SCG2 as a critical regulator of gonadotroph maturation. Functional validation demonstrated that SCG2 facilitates the biogenesis of secretory granules, thereby promoting FSH synthesis and secretion. Furthermore, intercellular communication analysis uncovered a distinct shift in the pituitary microenvironment: the 6 month pituitary exhibited enhanced regulatory networks, including IGF signaling mediated by non-endocrine cells and NT signaling (e.g., BDNF-NTRK2) driven by multiple cell types. These findings suggest that the onset of puberty relies on a coordinated "endocrine-to-endocrine" and "non-endocrine-to-endocrine" crosstalk. This study provides a high-resolution molecular blueprint of the pubertal transition, highlighting the key roles of biosynthetic machinery upgrades and microenvironmental remodeling in establishing the high reproductive performance of Hu sheep. Show less

Low-intensity pulsed ultrasound (LIPUS) shows promising anti-inflammatory and neuroprotective effects for different types of neurological disorders. This study aims to investigate the therapeutic effects of LIPUS on LPS-induced depression-like behavior and neuroinflammation and to elucidate the underlying molecular mechanisms. A depressive mouse model is established by intraperitoneal injection of LPS (1.0 mg/kg/day for 7 days). LIPUS is applied to the hippocampal region (30 min/day). Behavioral assessments include the open field test (OFT), forced swim test (FST), and tail suspension test (TST). Molecular analyses, including Western blotting, immunofluorescence, and qPCR, are performed to evaluate the expression of P2X4R, IBA1, inflammatory cytokines (IL-1β, IL-6, TNF-α), BDNF/TrkB signaling pathway, and apoptosis-related proteins (Bax, Bcl-2). The involvement of P2X4R is further examined using ivermectin (IVM), a selective P2X4R agonist. LIPUS significantly alleviates the LPS-induced depression-like behavior, suppresses hippocampal pro-inflammatory cytokine expression, inhibits microglial activation, and reduces neuronal apoptosis. Mechanistically, LIPUS downregulates P2X4R and IBA1, upregulates BDNF protein levels and TrkB phosphorylation, and modulates the Bax and Bcl-2 expression. Co-localization studies confirm that P2X4R is predominantly expressed in microglia, and LIPUS markedly reduces the overlap. Notably, the anti-inflammatory, neuroprotective, and antidepressant effects of LIPUS are significantly attenuated by IVM, highlighting the critical role of P2X4R suppression in mediating therapeutic effects. LIPUS mitigates LPS-induced neuroinflammation, neuronal apoptosis, and depression-like behavior by targeting microglial P2X4R and activating the BDNF/TrkB pathway. The findings provide mechanistic insights and demonstrate that LIPUS is a promising non-pharmacological intervention for depression, underscoring the translational potential of P2X4R as a therapeutic target. Show less

Lumbrokinase belongs to a group of fibrinolytic enzymes, particularly tissue plasminogen activator (tPA), which can facilitate the proteolytic maturation of brain-derived neurotrophic factor (BDNF). Drugs administered via oral or intravenous routes are often metabolized in the liver or kidneys, and these delivery methods for brain-targeted therapies must overcome the natural barriers of the central nervous system (CNS). Intranasal drug delivery via the nose-to-brain route has emerged as a promising approach to bypass these barriers, enhance drug penetration into the brain, and minimize exposure to peripheral organs. In this study, we demonstrate that intranasally administered lumbrokinase successfully reached the brain. Behaviorally, lumbrokinase significantly improved chronic social defeat stress (CSDS)-induced social avoidance and cognitive impairments. At the molecular level, CSDS increased hippocampal precursor BDNF (proBDNF) expression and reduced mature BDNF (mBDNF) compared with control mice. Importantly, lumbrokinase treatment promoted the expression of tPA and plasmin, thereby restoring the proBDNF/mBDNF balance in the hippocampus and reversing stress-induced maladaptive behaviors. Additionally, lumbrokinase increased TrkB, PSD95, and enhanced phosphorylation of PI3K, AKT, and mTOR in the hippocampus, indicating improved synaptic signaling and plasticity. In conclusion, this study demonstrates that intranasal delivery enables lumbrokinase to reach the brain effectively, providing robust therapeutic benefits against CSDS-induced behavioral and cognitive deficits. Enhancing plasmin-mediated BDNF maturation through non-invasive intranasal enzyme delivery may represent a promising approach for treating stress-related mood disorders. Show less

Breast cancer patients frequently experience debilitating cancer-related fatigue (CRF) during chemotherapy. Emerging evidence implicates the gut microbiota (GM) and the gut-brain axis in CRF pathogenesis, yet whether pre-chemotherapy GM profiles can predict CRF remains unclear. This prospective cohort study enrolled 100 breast cancer patients initiating chemotherapy. GM profiling and fatigue assessment (Visual Analogue Fatigue Scale, Cancer Fatigue Scale) were performed at baseline and the third chemotherapy cycle. Serum levels of neuroimmune-endocrine markers were also measured. Multivariate logistic regression was used to build a predictive model for moderate-to-severe CRF. Patients experiencing moderate-to-severe CRF at the third chemotherapy cycle demonstrated higher baseline Baseline GM characteristics predict the risk and severity of chemotherapy-induced CRF, potentially through modulation of neuroimmune-endocrine pathways via gut-brain axis. These findings underscore the potential role of GM as a predictive biomarker and a therapeutic target for chemotherapy-induced CRF. Show less

Alzheimer's disease (AD) presents a critical therapeutic gap, necessitating novel multitarget strategies. Excitotoxicity via NMDA receptor overactivation and oxidative stress is a key driver of Tau hyperphosphorylation and neuronal loss. While the tripeptide Gly-Pro-Glu (GPE) derived from IGF-1 exhibits NMDA receptor antagonism, its clinical potential is limited by poor blood-brain barrier penetration and rapid hydrolysis. Herein, we rationally designed three novel GPE-derived oligopeptide conjugates (SAC-PE, SPE, and SAR-SPE) by replacing the N-terminal glycine with antioxidant moieties (( Show less

Depression, a complex global disorder with unmet therapeutic needs, imposes profound societal burdens. Yueju Pill (YJP), a classic TCM formula targeting 'six stagnations', synergistically integrates five herbs (Atractylodes, Cyperus, Ligusticum, Gardenia and Massa Medicata) to restore Qi-blood homeostasis. Contemporary evidence delineates its multitarget antidepressant efficacy: normalising monoaminergic neurotransmission and the tryptophan-kynurenine pathway, potentiating neurotrophic support (BDNF/eEF2) for neuroplasticity, antagonising neuroinflammation via microglial M1-to-M2 polarisation and NF-κB/MAPK inhibition, mitigating oxidative stress and mitochondrial dysfunction and enhancing synaptic plasticity through glial/neuronal gene regulation (e.g., GADD45g/PHGDH). This synthesis of TCM principles with mechanistic evidence positions YJP as a holistic, systems-level therapeutic candidate, advocating for rigorous clinical validation and integration into precision psychiatry. Show less

Excessive stress leads to injury and dysfunction, but the underlying mechanism remains unclear. As a human longevity gene, forkhead box O3a (FoxO3a) is a transcription factor that regulates various cellular processes, including the response to oxidative stress, apoptosis, and autophagy. This study aims to explore whether FoxO3a in the dentate gyrus (DG) of the hippocampus is involved in the formation of anxiety- and depressive-like behavior and cognitive impairment in stressed rats and to investigate the detailed mechanism. This study was conducted using the 6-week chronic unpredictable stress (CUS) model. Before the stress treatment, we injected an adeno-associated virus (AAV) vector to overexpress FoxO3a specifically in the DG. Following the 6-week CUS treatment, a series of behavioral tests was conducted. Depression-like behavior was assessed using the sucrose preference test (SPT) and the open field test (OFT). The state of desperation was assessed with the forced swim test (FST) and tail suspension test (TST). Anxiety-like behavior was measured in the elevated plus maze (EPM) and OFT. Cognitive function was examined using the Y-maze test (Y-maze), novel object recognition test (NORT), and Morris water maze test (MWM). The level of reactive oxygen species (ROS) and activities of superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) were measured. The levels of inflammatory factors were detected by ELISA. Pathological injury in DG was observed using thionine staining. The expression levels of FoxO3a, brain-derived neurotrophic factor (BDNF), postsynaptic density protein 95 (PSD95), synaptophysin (SYN), and proliferation marker Ki67 (Ki67) were determined using western blot. CUS leads to various abnormal changes, including anxiety- and depressive-like behavior, cognitive impairment, oxidative stress, neuroinflammation, neuropathological alterations in the DG, and decreased expression of FoxO3a, BDNF, PSD95, SYN, and Ki67. All these abnormal changes were significantly alleviated by targeted AAV-FoxO3a injection in the DG. In conclusion, our study demonstrates that the downregulation of FoxO3a induced by CUS in the DG triggers oxidative stress and inflammatory response, inhibits cell proliferation, and induces abnormal synaptic plasticity, ultimately leading to anxiety- and depressive-like behaviors and cognitive impairment. Show less

This study was conducted to assess the clinical significance of programmed cell death-ligand 1 (PD-L1)-positive circulating tumor cells (CTCs) as predictive biomarkers for the efficacy of PD-(L)1 inhibitor-based treatment in advanced hepatocellular carcinoma (HCC). We enrolled 59 patients with unresectable HCC who received immunotherapy-based treatment and analyzed CTCs, PD-L1 CTCs were detected in 86.4% (51/59) of patients, with a PD-L1-positive rate of 83.7% (41/49). Compared with the "PD-L1 PD-L1 Show less

Parkinson's disease (PD) is characterized by dopaminergic neurodegeneration and increasingly associated with gut microbiota alterations. Roseburia intestinalis (R. intestinalis) is consistently reduced in PD; however, its functional contribution remains unknown. We performed two complementary mouse experiments using a 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced PD model. In the primary intervention experiment, mice received live or heat-killed R. intestinalis, followed by behavioral assessments and multi-layer analyses, including immunofluorescence, western blotting, enzyme-linked immunosorbent assay, quantitative polymerase chain reaction, 16S rRNA sequencing, metabolomics, and transcriptomics. In a separate mechanistic experiment, subdiaphragmatic vagotomy was introduced to interrogate vagus-dependent gut-brain communication, with key behavioral and inflammatory endpoints assessed. Live R. intestinalis improved rotarod, pole, and grip strength performance and preserved tyrosine hydroxylase-positive neurons in the substantia nigra; however, these effects were not observed in the heat-killed group. Live R. intestinalis treatment also reduced glial reactivity, restored brain-derived neurotrophic factor expression, and maintained blood-brain barrier integrity. Systemically, R. intestinalis lowered serum lipopolysaccharide, tumor necrosis factor-α, and interleukin-6 levels; preserved colonic structure; and restored mucin-secreting goblet cell function. MPTP-induced dysbiosis was partially corrected. Metabolomic profiling revealed restoration of several acyl-carnitines and higher acetic acid levels. Transcriptomic analysis showed increased immediate early genes after MPTP, and the elevated c-Fos in the substantia nigra was partially normalized by R. intestinalis. Importantly, vagotomy abolished the central neuroprotective and anti-inflammatory effects but did not affect peripheral cytokine suppression, indicating both vagus-dependent and vagus-independent pathways. R. intestinalis supplementation alleviated motor impairments, reduced neuroinflammation, preserved dopaminergic neurons, and improved intestinal and metabolic alterations in mice with an MPTP-induced PD model. Its protective actions may involve both central and peripheral mechanisms, potentially including gut-brain communication pathways. R. intestinalis may be a promising candidate for microbiota-based strategies against PD. Show less

Hippocampal neuroinflammation (HNF) is a key pathological feature in neurodegenerative disorders. Milk-derived exosomes, as bioactive extracellular vesicles, have underexplored potential in regulating brain neuroinflammatory responses. This study aimed to characterize desert milk exosomes (D-Exo) and investigate their neuroprotective and anti-neuroinflammatory effects in LPS-induced HNF mice model and an LPS-stimulated BV2 microglia. Exosomes were isolated from desert and non-desert milk (ND-Exo) for proteomic analysis. After pretreating BV2 cells with exosomes and stimulating with LPS, their inflammatory responses and polarization were assessed by RT-PCR. Balb/c mice were orally gavaged with D-Exo or 0.9% NaCl for 28 days before LPS injection. Cognitive function was assessed via behavioral tests, with microglial/astrocyte activation analyzed by immunofluorescence. D-Exo exhibited superior stability and a unique proteomic profile enriched with proteins linked to neuroinflammation and blood-brain barrier (BBB) integrity, notably within the AMPK signaling pathway. In vitro, D-Exo shifted LPS-stimulated microglia from the M1 to the M2 phenotype. In vivo, it alleviated HNF and cognitive decline, reduced Aβ D-Exo is enriched with specific proteins, attenuates neuroinflammation and cognitive decline by regulating microglial M1/M2 polarization and AMPK pathway, highlighting its preventive potential. Show less

The efficacy of antidepressants is influenced by a combination of genetic, individual, and environmental factors. This study aimed to investigate the association between the miR-182 rs76481776 polymorphism and the response to antidepressant treatment in major depressive disorder (MDD) patients, and its underlying molecular mechanisms. This study enrolled 180 MDD patients and 180 healthy controls. The rs76481776 genotype was determined using TaqMan-based qPCR. The severity of depression and treatment response were assessed using the Hamilton Depression Rating Scale (HAMD). The expression of miR-182 and The T allele of rs76481776 was a significant risk factor for MDD (OR = 2.182, 95% CI: 1.424-3.345, The T allele of rs76481776 diminished the therapeutic efficacy of antidepressants by up-regulating miR-182 expression and subsequently suppressing Show less

While mindfulness has demonstrated efficacy in enhancing executive function in non-athletes through improved present-moment awareness and acceptance of current experiences, particularly regarding attention regulation and cognitive control, its neurocognitive mechanisms and the effects and underlying mechanisms of mindfulness-based intervention (MBI) on different executive functioning skills in athletic populations remain poorly understood. The purpose of this randomized controlled trial tackles a novel and important topic by investigating the beneficial effects of 12-week MBI on executive functioning skills in baseball players-a population that faces unique cognitive and physical demands, and the associated neurophysiological and biochemical regulation mechanisms. Thirty-four baseball players were randomly divided into the MBI group (11M/6F) and the control group (11M/6F). Executive functioning skills (N-back task for working memory, Stroop task for inhibitory control, and Switching task for cognitive flexibility) were tested before and after the intervention. Functional near-infrared spectroscopy (fNIRS) was used to record quantified hemodynamic responses in the prefrontal cortex through oxygenated hemoglobin concentration (Oxy-Hb) monitoring during the performance of executive function tasks. Biomarkers of cognitive function, including BDNF, IL-6, TNF-α, and Cortisol, were measured using enzyme-linked immunosorbent assays (ELISA). MBI partially improved all three executive function skills, with increased Oxy-Hb level in L-FPA during the task of working memory, increased Oxy-Hb level in R-VLPFC during the task of inhibitory control, and decreased Oxy-Hb level in R-FPA, M-FPA, and L-DLPFC during the task of cognitive flexibility. Furthermore, MBI increased circulating BDNF level and decreased IL-6 and Cortisol levels. In addition, our correlation analyses showed that improvement in executive function (improved behavioral performances and changes in Oxy-Hb levels) were associated with changes in Cortisol and inflammatory cytokines (TNF-α and IL-6). A 12-week MBI partially improved three components of executive function in baseball players. This enhancement may be attributed to the MBI-induced reductions in Cortisol and inflammatory cytokines (such as TNF-α and IL-6), which altered blood oxygen contents in specific brain regions, thereby promoting executive function. Show less

The lifetime prevalence of depression is significantly higher in women. But the lack of ideal antidepressant severely limits therapies for female specific depressive disorders like perinatal depression. Herein, we evaluated whether vitamin C (ascorbic acid), a widely used nutritional supplement and perinatal therapeutic agent, could serve as a potential treatment for female-related depressive disorders using a chronic restraint stress (CRS) mouse model. C57BL/6 adult female mice were submitted to a 14-day CRS paradigm to induce depression-like behaviors. The antidepressant potential of vitamin C (200 mg/kg, i.p., a single dose) were assessed in CRS-exposed female mice that exhibited depression-like phenotype. Furthermore, we explored the underlying mechanisms through RNA sequencing, western blotting, and pharmacological interventions. Vitamin C rapidly ameliorated depression-like phenotypes in CRS-exposed female mice within 24 h. The sucrose preference test indicated that the antidepressant effect of vitamin C lasted for more than 72 h. Transcriptome sequencing analysis revealed that vitamin C reversed CRS-induced transcriptional alterations in 104 genes in the medial prefrontal cortex (mPFC) of female mice, including the dopamine receptor D2 (D2R). Western blotting confirmed that CRS suppressed the D2R-ERK1/2-CREB-BDNF pathway in the mPFC, which was effectively rescued by vitamin C. The antidepressant effect of vitamin C was antagonized by the D2R antagonist sulpiride. Additionally, protein-protein interaction network analysis revealed functional linkages between D2R and other vitamin C-regulated stress-sensitive genes. Our findings suggest that vitamin C may serve as an ideal candidate for the treatment of depression in females, potentially through the restoration of the D2R-BDNF pathway. Show less