1.Terms Related to The Study of Biomacromolecular Condensates
Ke RUAN ; Xiao-Feng FANG ; Dan LI ; Pi-Long LI ; Yi LIN ; Zheng WANG ; Yun-Yu SHI ; Ming-Jie ZHANG ; Hong ZHANG ; Cong LIU
Progress in Biochemistry and Biophysics 2025;52(4):1027-1035
Biomolecular condensates are formed through phase separation of biomacromolecules such as proteins and RNAs. These condensates exhibit liquid-like properties that can futher transition into more stable material states. They form complex internal structures via multivalent weak interactions, enabling precise spatiotemporal regulations. However, the use of inconsistent and non-standardized terminology has become increasingly problematic, hindering academic exchange and the dissemination of scientific knowledge. Therefore, it is necessary to discuss the terminology related to biomolecular condensates in order to clarify concepts, promote interdisciplinary cooperation, enhance research efficiency, and support the healthy development of this field.
2.Blood glucose-lowering mechanism of Poria aqueous extract by UPLC-Q-TOF-MS/MS combined with network pharmacology and experimental verification.
Dan-Dan ZHANG ; Wen-Biao WAN ; Qing YAO ; Fang LI ; Zi-Yin YAO ; Xiao-Chuan YE
China Journal of Chinese Materia Medica 2025;50(14):3980-3989
Ultra performance liquid chromatography-quadrupole-time-of-flight-mass spectrometry/mass spectrometry(UPLC-Q-TOF-MS/MS), network pharmacology, and animal experiments were integrated o explore the blood glucose-lowering effects and mechanisms of Poria aqueous extract. Firstly, the active components of Poria aqueous extract were identified by UPLC-Q-TOF-MS/MS. Subsequently, network pharmacology was employed to predict the blood glucose-lowering components and mechanisms of Poria aqueous extract. Finally, a rat model of diabetes mellitus, 16S rDNA sequencing, and Western blot were employed to investigate the blood glucose-lowering effect and mechanism of Poria aqueous extract. A total of 39 triterpenoids were identified in the Poria aqueous extract, among them, 25-hydroxypachymic acid, 25α-hydroxytumulosic acid, 16α-hydroxytrametenolic acid, polyporenic acid C, and tumulosic acid may be the main active ingredients for treating diabetes. The Kyoto Encyclopedia of Genes and Genomes(KEGG) pathway enrichment analysis revealed that Poria might exert its therapeutic effects through multiple pathways such as NOD-like receptor signaling pathway, nuclear factor-kappa B(NF-κB) signaling pathway, and tumor necrosis factor(TNF) signaling pathway. The results of animal experiments demonstrated that Poria aqueous extract significantly reduced the levels of blood glucose and lipids and regulated the intestinal flora in diabetic rats. The main affected taxa included g_Escherichia-Shigella, g_Corynebacterium, g_Prevotella_9, g_Prevotellaceae_UCG-001, and g_Bacteroidota_unclassified. In addition, Poria aqueous extract lowered the levels of D-lactic acid and lipopolysaccharide, alleviated colonic mucosal damage, significantly down-regulated the protein levels of NOD-like receptor pyrin domain-containing protein 3(NLRP3), NF-κB, and TNF-α, and significantly up-regulated the protein levels of zonula occludens 1 and occludin in diabetic rates. Poria aqueous extract may play a role in treating diabetes mellitus by repairing the intestinal flora disturbance, protecting the intestinal barrier function, and inhibiting the NF-κB/NLRP3 signaling pathway. The results provide a scientific basis for clinical application and expansion of indications of Poria.
Animals
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Rats
;
Network Pharmacology
;
Tandem Mass Spectrometry
;
Male
;
Drugs, Chinese Herbal/pharmacology*
;
Chromatography, High Pressure Liquid
;
Blood Glucose/drug effects*
;
Rats, Sprague-Dawley
;
Hypoglycemic Agents/administration & dosage*
;
Poria/chemistry*
;
Diabetes Mellitus, Experimental/metabolism*
;
NF-kappa B/genetics*
;
Gastrointestinal Microbiome/drug effects*
;
Humans
3.Pharmacological actions of the bioactive compounds of Epimedium on the male reproductive system: current status and future perspective.
Song-Po LIU ; Yun-Fei LI ; Dan ZHANG ; Chun-Yang LI ; Xiao-Fang DAI ; Dong-Feng LAN ; Ji CAI ; He ZHOU ; Tao SONG ; Yan-Yu ZHAO ; Zhi-Xu HE ; Jun TAN ; Ji-Dong ZHANG
Asian Journal of Andrology 2025;27(1):20-29
Compounds isolated from Epimedium include the total flavonoids of Epimedium , icariin, and its metabolites (icaritin, icariside I, and icariside II), which have similar molecular structures. Modern pharmacological research and clinical practice have proved that Epimedium and its active components have a wide range of pharmacological effects, especially in improving sexual function, hormone regulation, anti-osteoporosis, immune function regulation, anti-oxidation, and anti-tumor activity. To date, we still need a comprehensive source of knowledge about the pharmacological effects of Epimedium and its bioactive compounds on the male reproductive system. However, their actions in other tissues have been reviewed in recent years. This review critically focuses on the Epimedium , its bioactive compounds, and the biochemical and molecular mechanisms that modulate vital pathways associated with the male reproductive system. Such intrinsic knowledge will significantly further studies on the Epimedium and its bioactive compounds that protect the male reproductive system and provide some guidances for clinical treatment of related male reproductive disorders.
Male
;
Epimedium/chemistry*
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Humans
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Genitalia, Male/drug effects*
;
Flavonoids/therapeutic use*
;
Animals
4.Body fat distribution and semen quality in 4304 Chinese sperm donors.
Si-Han LIANG ; Qi-Ling WANG ; Dan LI ; Gui-Fang YE ; Ying-Xin LI ; Wei ZHOU ; Rui-Jun XU ; Xin-Yi DENG ; Lu LUO ; Si-Rong WANG ; Xin-Zong ZHANG ; Yue-Wei LIU
Asian Journal of Andrology 2025;27(4):524-530
Extensive studies have identified potential adverse effects on semen quality of obesity, based on body mass index, but the association between body fat distribution, a more relevant indicator for obesity, and semen quality remains less clear. We conducted a longitudinal study of 4304 sperm donors from the Guangdong Provincial Human Sperm Bank (Guangzhou, China) during 2017-2021. A body composition analyzer was used to measure total and local body fat percentage for each participant. Generalized estimating equations were employed to assess the association between body fat percentage and sperm count, motility, and morphology. We estimated that each 10% increase in total body fat percentage (estimated change [95% confidence interval, 95% CI]) was significantly associated with a 0.18 × 10 6 (0.09 × 10 6 -0.27 × 10 6 ) ml and 12.21 × 10 6 (4.52 × 10 6 -19.91 × 10 6 ) reduction in semen volume and total sperm count, respectively. Categorical analyses and exposure-response curves showed that the association of body fat distribution with semen volume and total sperm count was stronger at higher body fat percentages. In addition, the association still held among normal weight and overweight participants. We observed similar associations for upper limb, trunk, and lower limb body fact distributions. In conclusion, we found that a higher body fat distribution was significantly associated with lower semen quality (especially semen volume) even in men with a normal weight. These findings provide useful clues in exploring body fat as a risk factor for semen quality decline and add to evidence for improving semen quality for those who are expected to conceive.
Humans
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Male
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Adult
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Semen Analysis
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China
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Body Fat Distribution
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Longitudinal Studies
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Sperm Count
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Sperm Motility
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Body Mass Index
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Tissue Donors
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Obesity/complications*
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Spermatozoa
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Young Adult
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Middle Aged
;
East Asian People
5.Cation Channel TMEM63A Autonomously Facilitates Oligodendrocyte Differentiation at an Early Stage.
Yue-Ying WANG ; Dan WU ; Yongkun ZHAN ; Fei LI ; Yan-Yu ZANG ; Xiao-Yu TENG ; Linlin ZHANG ; Gui-Fang DUAN ; He WANG ; Rong XU ; Guiquan CHEN ; Yun XU ; Jian-Jun YANG ; Yongguo YU ; Yun Stone SHI
Neuroscience Bulletin 2025;41(4):615-632
Accurate timing of myelination is crucial for the proper functioning of the central nervous system. Here, we identified a de novo heterozygous mutation in TMEM63A (c.1894G>A; p. Ala632Thr) in a 7-year-old boy exhibiting hypomyelination. A Ca2+ influx assay suggested that this is a loss-of-function mutation. To explore how TMEM63A deficiency causes hypomyelination, we generated Tmem63a knockout mice. Genetic deletion of TMEM63A resulted in hypomyelination at postnatal day 14 (P14) arising from impaired differentiation of oligodendrocyte precursor cells (OPCs). Notably, the myelin dysplasia was transient, returning to normal levels by P28. Primary cultures of Tmem63a-/- OPCs presented delayed differentiation. Lentivirus-based expression of TMEM63A but not TMEM63A_A632T rescued the differentiation of Tmem63a-/- OPCs in vitro and myelination in Tmem63a-/- mice. These data thus support the conclusion that the mutation in TMEM63A is the pathogenesis of the hypomyelination in the patient. Our study further demonstrated that TMEM63A-mediated Ca2+ influx plays critical roles in the early development of myelin and oligodendrocyte differentiation.
Animals
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Cell Differentiation/physiology*
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Oligodendroglia/metabolism*
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Mice, Knockout
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Mice
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Male
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Myelin Sheath/metabolism*
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Humans
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Child
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Cells, Cultured
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Oligodendrocyte Precursor Cells/metabolism*
6.Causal Associations between Particulate Matter 2.5 (PM 2.5), PM 2.5 Absorbance, and Inflammatory Bowel Disease Risk: Evidence from a Two-Sample Mendelian Randomization Study.
Xu ZHANG ; Zhi Meng WU ; Lu ZHANG ; Bing Long XIN ; Xiang Rui WANG ; Xin Lan LU ; Gui Fang LU ; Mu Dan REN ; Shui Xiang HE ; Ya Rui LI
Biomedical and Environmental Sciences 2025;38(2):167-177
OBJECTIVE:
Several epidemiological observational studies have related particulate matter (PM) exposure to Inflammatory bowel disease (IBD), but many confounding factors make it difficult to draw causal links from observational studies. The objective of this study was to explore the causal association between PM 2.5 exposure, its absorbance, and IBD.
METHODS:
We assessed the association of PM 2.5 and PM 2.5 absorbance with the two primary forms of IBD (Crohn's disease [CD] and ulcerative colitis [UC]) using Mendelian randomization (MR) to explore the causal relationship. We conducted two-sample MR analyses with aggregated data from the UK Biobank genome-wide association study. Single-nucleotide polymorphisms linked with PM 2.5 concentrations or their absorbance were used as instrumental variables (IVs). We used inverse variance weighting (IVW) as the primary analytical approach and four other standard methods as supplementary analyses for quality control.
RESULTS:
The results of MR demonstrated that PM 2.5 had an adverse influence on UC risk (odds ratio [ OR] = 1.010; 95% confidence interval [ CI] = 1.001-1.019, P = 0.020). Meanwhile, the results of IVW showed that PM 2.5 absorbance was also causally associated with UC ( OR = 1.012; 95% CI = 1.004-1.019, P = 0.002). We observed no causal relationship between PM 2.5, PM 2.5 absorbance, and CD. The results of sensitivity analysis indicated the absence of heterogeneity or pleiotropy, ensuring the reliability of MR results.
CONCLUSION
Based on two-sample MR analyses, there are potential positive causal relationships between PM 2.5, PM 2.5 absorbance, and UC.
Humans
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Mendelian Randomization Analysis
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Particulate Matter/analysis*
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Polymorphism, Single Nucleotide
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Inflammatory Bowel Diseases/genetics*
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Air Pollutants/analysis*
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Crohn Disease/genetics*
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Colitis, Ulcerative/genetics*
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Genome-Wide Association Study
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Risk Factors
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Environmental Exposure
7.Associations of Genetic Risk and Physical Activity with Incident Chronic Obstructive Pulmonary Disease: A Large Prospective Cohort Study.
Jin YANG ; Xiao Lin WANG ; Wen Fang ZHONG ; Jian GAO ; Huan CHEN ; Pei Liang CHEN ; Qing Mei HUANG ; Yi Xin ZHANG ; Fang Fei YOU ; Chuan LI ; Wei Qi SONG ; Dong SHEN ; Jiao Jiao REN ; Dan LIU ; Zhi Hao LI ; Chen MAO
Biomedical and Environmental Sciences 2025;38(10):1194-1204
OBJECTIVE:
To investigate the relationship between physical activity and genetic risk and their combined effects on the risk of developing chronic obstructive pulmonary disease.
METHODS:
This prospective cohort study included 318,085 biobank participants from the UK. Physical activity was assessed using the short form of the International Physical Activity Questionnaire. The participants were stratified into low-, intermediate-, and high-genetic-risk groups based on their polygenic risk scores. Multivariate Cox regression models and multiplicative interaction analyses were used.
RESULTS:
During a median follow-up period of 13 years, 9,209 participants were diagnosed with chronic obstructive pulmonary disease. For low genetic risk, compared to low physical activity, the hazard ratios ( HRs) for moderate and high physical activity were 0.853 (95% confidence interval [ CI]: 0.748-0.972) and 0.831 (95% CI: 0.727-0.950), respectively. For intermediate genetic risk, the HRs were 0.829 (95% CI: 0.758-0.905) and 0.835 (95% CI: 0.764-0.914), respectively. For participants with high genetic risk, the HRs were 0.809 (95% CI: 0.746-0.877) and 0.818 (95% CI: 0.754-0.888), respectively. A significant interaction was observed between genetic risk and physical activity.
CONCLUSION
Moderate or high levels of physical activity were associated with a lower risk of developing chronic obstructive pulmonary disease across all genetic risk groups, highlighting the need to tailor activity interventions for genetically susceptible individuals.
Humans
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Pulmonary Disease, Chronic Obstructive/epidemiology*
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Exercise
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Male
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Female
;
Middle Aged
;
Prospective Studies
;
Aged
;
Genetic Predisposition to Disease
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Risk Factors
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United Kingdom/epidemiology*
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Incidence
;
Adult
8.Research on the impact of physician's compensation payment methods on medical service behavior:A scoping review
Qiang YAO ; Yue-fang JIAO ; Xiao-dan ZHANG ; Ya-qi RAO ; Hui-ling ZHENG ; Mian XIA
Chinese Journal of Health Policy 2025;18(4):25-35
Objective:To systematically analyze the impact of various physician payment methods on medical service delivery behavior and outcomes.Methods:Based on the scoping review method,2 255 documents related to"physician","compensation","payment method",and"physician behavior"were retrieved from Web of Science,CNKI,VIP,and WanFang databases,and finally 70 studies were included based on scientific screening standards and process.Results:Fee-for-service encourages physicians to deliver an adequate volume of services but is susceptible to overtreatment;salary and capitation assist in controlling costs but can lead to insufficient service provision;the advantages of DRG/DIP in the quantity and quality of medical services weaken as the patient's condition worsens.Mixed payment methods can effectively balance the quantity and cost of medical services,while pay-for-performance is generally outstanding in improving quality.Conclusions:It is difficult for a single payment method to achieve the optimization of medical service delivery behavior and outcomes.A mixed payment system that integrates multiple payment methods with quality incentives must be established urgently.At the same time,it is recommended to deepen the reform of the mechanism for converting medical insurance balance into physician compensation,fully implement the allocation autonomy of public hospitals,and accelerate the establishment of a mixed physician payment method that is coordinated with medical insurance payment and performance appraisal.
9.Formulation and Explanation of the Standard for Perioperative Pharmacy Services
Danwei WU ; Jiancun ZHEN ; Wei ZHANG ; Jin LU ; Dan MEI ; Yangui XU ; Yubo WU ; Pin-fang HUANG
Herald of Medicine 2025;44(5):712-716
In surgical diagnosis and treatment,the perioperative period is a comprehensive diagnosis and treatment process,including the rational application of antibiotics,nutrition management,pain management,blood pressure,blood sugar man-agement,and other processes.Perioperative pharmaceutical care has become one of the innovative fields of pharmaceutical care.In order to ensure the work and service quality of perioperative pharmaceutical care,the preparation team of perioperative pharmaceu-tical care standards takes scientific,universal,and practical principles as the basic principles,reviews the key points and difficul-ties from the three aspects of relevant national policy documents,relevant domestic and foreign standards and norms,and literature analysis,and combines the actual situation of perioperative pharmaceutical care.This pharmaceutical care standard was formulated after several rounds of opinion solicitation and expert argumentation.This paper analyzes the key contents of the standard,inclu-ding the basic requirements,service process,quality control,and evaluation and improvement of perioperative pharmaceutical care,so as to provide reference suggestions for medical structure managers and pharmacists who carry out perioperative pharma-ceutical care to deeply understand and practice this standard,so as to improve perioperative pharmaceutical care.
10.Establishment and validation of urine AD7c-NTP reference intervals for healthy adults in Mianyang area using the indirect method
Yurong ZHANG ; Yifei HE ; Ping YANG ; Zixi XU ; Zhilong CAI ; Yang LIU ; Dan WANG ; Liang HUANG ; Bing HOU ; Jia YANG ; Xuemei JIANG ; Kun FANG
Chinese Journal of Clinical Laboratory Science 2025;43(5):378-381
Objective To establish the reference interval of urine Alzheimer-associated neuronal thread protein(AD7c-NTP)for healthy adults in Mianyang area using the indirect method.Methods The detection results of urine AD7c-NTP from 5 093 healthy in-dividuals were collected from the information management database of Medical Laboratory Department of Sichuan Science City Hospital from March 2017 to March 2022.Skewness-kurtosis and Kolmogorov-Smirnov tests were used to determine whether the data followed a normal distribution.After removing outliers using the Box Plots method,the enrolled subjects were grouped by gender and age.The Mann-Whitney U or Kruska-Wallis H tests were used to analyze the between-group differences of urine AD7c-NTP in healthy individu-als with different genders and ages.The adjacent age groups without statistically significant difference(P>0.05)were combined,and the indirect method(non-parametric test method)was used to calculate the reference intervals for different gender and age groups.Results Skewness-kurtosis and Kolmogorov-Smirnov tests showed that the data followed a non-normal distribution.After removing 293 outliers using the Box Plots method,a total of 4 800 subjects,including 3 199 males and 1 601 females,were enrolled.The enrolled subjects were grouped by gender and age,and the non-parametric test method were used to establish the reference intervals of urine AD7c-NTP in healthy populations with different genders.The Mann-Whitney U test confirmed that urine AD7c-NTP levels existed gen-der differences(Z=14.09,P<0.01),and the reference intervals for males and females were≤1.10 ng/mL and≤1.40 ng/mL,re-spectively.There were also statistical differences in urine AD7c-NTP levels among different age groups of the same gender.After combi-ning adjacent age groups without statistically significant difference(P>0.05),the reference intervals of urine AD7c-NTP in healthy populations with different genders and ages were established by the non-parametric test method,which were≤1.00 ng/mL for male 20-39 years old group,≤1.10 ng/mL for male 40-79 years old group,≤1.60 ng/mL for male≥80 years old group,≤1.30 ng/mL for female 20-69 years old group,and≤1.60 ng/mL for female≥70 years old group,respectively.The established reference intervals of urine AD7c-NTP were further verified by healthy individuals,and the results met the standards.Conclusion The reference intervals of urine AD7c-NTP in healthy populations with different genders and ages in Mianyang area are established successfully using the indi-rect method,which may help to predict the risk of Alzheimer's disease in clinical practice and provide support for the diagnosis and treatment of the disease.

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