1.Research on The Genealogical Inference Efficiency of High-density SNPs
Jing LI ; Yi-Jie SUN ; Wen-Ting ZHAO ; Zi-Chen TANG ; Jing LIU ; Cai-Xia LI
Progress in Biochemistry and Biophysics 2026;53(3):740-753
ObjectiveThis study aims to explore the potential of different orders of magnitude single-nucleotide polymorphism (SNP) locus combinations for predicting distant kinship relationships. A high-density SNP locus set was constructed, and a comprehensive assessment of its inference capability was conducted. MethodsFirstly, we selected three commercial chip panels, CGA (Chinese genotyping array, Illumina), GSA (Global screening array, Illumina), Affy (23MF_V2 high-density SNP array, Affymetrix) and merged them after quality control, forming a high-density SNP locus panel(1 180 k). Secondly, we selected 161 samples and collected their peripheral blood samples by using whole-genome sequencing technology. Within this sample population, the levels of kinship relationships fully covered the range from level 1 to level 9, and the number of kinship pairs at each level was consistently maintained at over 50 pairs. From 161 samples data of whole-genome sequencing, the 1 180 k locus set was extracted, which is referred to as the high-density SNP locus set in the following text. The kinship inference was conducted using the identity-by-descent (IBD) algorithm with the selected optimal parameters. To comprehensively evaluate the performance of the high-density SNP locus set in kinship inference, we compared it with the three commercial chip panels, the intersection of these three chip loci, and the control sets constructed by randomly reducing the number of the high-density SNP locus set. Based on the changes in the IBD lengths, as well as the dynamic trends in prediction accuracy, we conducted a scientific assessment of the kinship inference capability of the high-density SNP locus set. ResultsAfter screening, a set of 1 184 334 autosomal SNPs was obtained. During the process of screening the optimal IBD length threshold, the result revealed that 0 cM, 1 cM, and 2 cM all demonstrated good applicability. However, to avoid the issue of a large amount of redundant information caused by setting a too low IBD length threshold, this study ultimately selected 2 cM as the optimal threshold. Compared with the average results of three chip panels, the high-density SNP locus set increased the total IBD length and the average IBD length across levels 1-9; the accuracy of the confidence interval for level 8 was 70.97%, which represented a 3.50% improvement; the average confidence interval accuracy for levels 1-8 was 91.39%, representing a 1.00% increase; and the false negative rates at levels 8 and 9 were reduced by 2.42% and 6.76%, respectively. The system efficacy of the high-density SNP locus set for kinship inference of first to eighth degree relationships reached 98.91%. Through random reduction of the high-density SNP locus set results, it is found that increasing the number of SNPs with the panel, the detection efficiency of IBD length showed a significant upward trend. At the same time, the overall trend in the accuracy of kinship relationship prediction as well as the confidence interval accuracy also indicated that both metrics steadily increased with the addition of more loci. ConclusionThe results show that the high-density SNPs panel significantly enhances the efficacy of distant kinship inference, accurately covering kinship degrees, with the average confidence interval accuracy for first to eighth degree relationships stably above 90%. The study finds that increasing the number of SNPs panel can improve the ability to predict distant kinship.
2.Autophagy and platelets: mechanisms, functions, and research advances in related diseases
Zhenyu ZHAO ; Xiaoyan HE ; Xiao XIAO ; Xuemei CHEN ; Jie TANG
Chinese Journal of Blood Transfusion 2026;39(4):557-563
Platelets are small, anucleated cells generated by cytoplasmic fragmentation and shedding from mature megakaryocytes. Upon vascular stimulation or injury, platelets become activated and adhere to exposed vascular endothelial cells, ultimately forming thrombi to promote blood coagulation and wound healing. In recent years, increasing evidence from in-depth studies on platelet function has revealed that autophagy plays a crucial role in platelet production and functional performance. Autophagy is an intracellular process of material recycling and reuse, involving autophagosome formation, cargo degradation, and nutrient recycling, which facilitates the maintenance of homeostasis and defense against pathogen infection. Numerous studies have demonstrated that autophagy participates in the regulation of platelet production, activation, and aggregation, and is closely implicated in the pathogenesis of platelet dysfunction-related diseases such as immune thrombocytopenia. Additionally, platelet-rich plasma therapy, by modulating the autophagic process, has shown great potential in treating osteoarthritis and promoting diabetic foot wound healing. This review thoroughly explores the potential roles of autophagy in regulating platelet production and function, as well as in platelet-related diseases. Future research should focus on the molecular mechanisms of platelet autophagy, investigate its dynamic changes under different disease conditions, and explore how autophagy modulation can improve platelet function and treat related diseases. This will provide a theoretical foundation for developing novel therapeutic strategies and is expected to bring breakthroughs in the treatment of platelet-related diseases.
3.Trends and gender differences in height and weight of primary and secondary school students in Shiyan City, 2015-2024
Peidong YANG ; Liang ZHAO ; Weidong HE ; Jie YANG ; Fang XU ; Rongmei WAN ; Feijia CHEN ; Jun ZHAO
Journal of Public Health and Preventive Medicine 2026;37(3):90-93
bjective To analyze the growth trends of height and weight among primary and secondary school students, and explore the developmental characteristics and gender differences at different age groups, and to provide a scientific basis for adolescent health policy formulation. Methods Based on 675 175 health examination records of 227 978 students aged 6-17 years in Shiyan City from 2015 to 2024, a logistic growth model was employed to fit the curves of height and weight changes with age. Results From 2015 to 2024, height and weight showed steady increases across all age groups, exhibiting typical sigmoidal growth patterns. The growth rates varied across age groups: the younger age group (6-9 years) showed a moderate growth (annual height increase of 0.5-1.0 cm, weight increase of 0.03-0.06 kg/year), while the older age group (10-17 years) demonstrated a significant growth (annual height increase of 1.5-2.0 cm, weight increase of 0.22-0.38 kg/year). The growth rate curves displayed a unimodal distribution. The growth inflection points of male students occurred later than that of female students (height inflection point: 9.87 years for males vs. 8.98 years for females; weight inflection point: 10.70 years for males vs. 9.99 years for females). Female students experienced a more concentrated but shorter period of growth and development. The peak height growth rate was 7.40 cm/year at age 9 for females and 7.09 cm/year at age 10 for males, while the peak weight growth rate was 5.04 kg/year at age 10 for females and 5.27 kg/year at age 11 for males. Conclusion The physical development of primary and secondary school students in Shiyan City follows a logistic growth pattern, with significant gender differences and characteristics of adolescent growth spurts. Female students exhibit an earlier and more concentrated growth process.
4.Improvement effect and mechanism of Shengmai powder on heart failure mice with qi-yin deficiency
Lanfang KANG ; Jian LI ; Yating ZHAO ; Yingchun CHEN ; Guiyin CHEN ; Xiaobo NIE ; Jiao LIU ; Jie CHENG
China Pharmacy 2025;36(17):2127-2133
OBJECTIVE To study the improvement effect and mechanism of Shengmai powder on heart failure (HF) mice with qi-yin deficiency. METHODS The mice were randomly divided into blank group (water), model group (water), Shengmai powder low-, medium-, and high-dose groups [2.61, 5.22 and 10.44 g/kg (based on crude drug dosage)] and positive control group (metoprolol, 30 mg/kg), with 10 mice in each group. Except for the blank group, all other groups were subcutaneously injected with D-galactose, and a qi-yin deficiency HF mice model was established by continuous food restriction and weight-bearing swimming. At the same time of modeling, the corresponding medicine/water was gavaged once a day for five weeks. The general state of mice was recorded and the traditional Chinese medicine (TCM) syndrome score was evaluated. Behavioral experiments were conducted to investigate the total distance of open field action, the percentage of immobility time, and the swimming exhaustion time of mice. The contents of aspartate transaminase (AST), creatine kinase (CK) and lactate dehydrogenase (LDH) in the serum of mice were detected; cardiac function indexes [heart rate, left ventricular ejection fraction (LVEF), left ventricular end systolic diameter (LVESD), left ventricular end diastolic diameter (LVEDD), left ventricular mass index and whole heart mass index] were all detected; the histopathological morphology of mice myocardium was observed; the level of cardiomyocyte apoptosis in mice was detected; mRNA expression levels of B-cell lymphoma 2 (Bcl-2), Bcl-2 associated X protein (Bax), and Cleaved-caspase-3 in myocardial tissue of mice were detected; the phosphorylation levels of sarcoplasmic reticulum calcium regulatory related proteins [ryanodine receptor 2 (RyR2) and phospholamban (PLB)] in myocardial tissue of mice were detected. RESULTS Compared with the blank group, the body weight, total distance of open field action, swimming exhaustion time, LVEF, LVEDD, Bcl-2 mRNA expression level in myocardial tissue and PLB protein phosphorylation level in the model group were significantly reduced/shortened (P<0.05); TCM syndrome score, the percentage of immobility time, heart rate, LVESD, left ventricular mass index, whole heart mass index, cardiomyocyte apoptosis rate, the contents of CK, LDH and AST in serum, mRNA expression levels of Cleaved-caspase-3 and Bax and the phosphorylation level of RyR2 protein in myocardial tissue were significantly increased (P<0.05); there were inflammatory cell infiltration, disordered cell arrangement and obvious myocardial interstitial fibrosis in myocardial tissue. After the intervention of Shengmai powder, most of the above quantitative indexes in mice were significantly reversed (P<0.05), the inflammatory cell infiltration in myocardial tissue was reduced, and the degree of fibrosis was significantly reduced. CONCLUSIONS Shengmai powder can improve cardiac function, reduce the level of cardiomyocyte apoptosis and myocardial fibrosis in HF mice with qi-yin deficiency. Its mechanism may be related to the regulation of the expression of sarcoplasmic reticulum calcium regulation related proteins.
5.Research Progress of Antibacterial Mechanism of Traditional Chinese Medicine and Synergistic Antibacterial Drugs to Reverse Drug Resistance
Jiamin CHEN ; Xinyu ZHAO ; Shuhua YUE ; Zihao SHEN ; Chujiong CHEN ; Shenghua LU ; Zengyu ZHANG ; Jie REN
Medical Journal of Peking Union Medical College Hospital 2025;16(5):1157-1169
With the widespread use of antimicrobial agents, bacterial drug resistance has become an increasingly severe issue, posing significant challenges to global healthcare. Traditional Chinese medicine (TCM) has emerged as a research focus in the field of bacterial resistance due to its broad sources, high safety profile, low toxicity, and antimicrobial mechanisms distinct from those of chemical drugs. Studies have shown that various TCM herbs, such as Scutellaria baicalensis, exert antibacterial effects through multiple pathways, including disrupting the integrity of bacterial cell walls and membranes, inhibiting nucleic acid and protein synthesis, and impairing energy production and metabolism. Additionally, certain TCM herbs, including Scutellaria baicalensis, Coptis chinensis, and Fritillaria thunbergii, can reverse antimicrobial resistance by eliminating resistant plasmids, inhibiting bacterial efflux pump function, and suppressing β-lactamase activity. TCM holds promising potential for antibacterial applications and synergistically reversing antimicrobial resistance, though systematic analyses remain limited. This review summarizes the mechanisms of antibacterial action of TCM and current research on its synergistic use with antimicrobial agents to reverse drug resistance, aiming to provide insights for developing novel TCM-based antimicrobials and addressing bacterial resistance.
6.Electroacupuncture at "four points of sacral region" for mild-to-moderate benign prostatic hyperplasia with lower urinary tract symptoms: a randomized controlled trial.
Jie ZHOU ; Mengyi ZHENG ; Shan CHEN ; Yiying ZHAO ; Ruijie MA
Chinese Acupuncture & Moxibustion 2025;45(5):627-632
OBJECTIVE:
To observe the clinical efficacy of electroacupuncture (EA) at "four points of sacral region" for mild-to-moderate benign prostatic hyperplasia (BPH) with lower urinary tract symptoms (LUTS).
METHODS:
A total of 58 patients with BPH/LUTS were randomly divided into a sacral four-point EA group (29 cases, 1 case dropped out) and a conventional EA group (29 cases, 1 case dropped out). EA was applied at bilateral points 0.5 cun lateral to the sacrococcygeal joint and Huiyang (BL35) in the sacral four-point EA group; and was applied at Guanyuan (CV4), Zhongji (CV3), Qugu (CV2) and bilateral Shuidao (ST28), Sanyinjiao (SP6), Zusanli (ST36) in the conventional EA group. Both groups received continuous wave, 2 Hz in frequency, 30 min a time, once every other day, 3 times a week for 4 weeks. Before treatment, after 2 and 4 weeks of treatment, and in follow-up of 1 month after treatment completion, the international prostate symptom score (IPSS), the overactive bladder symptom score (OABSS), the quality of life (QOL) score were observed; before and after treatment, the prostate volume (PV) was measured by abdominal ultrasound; and the clinical efficacy was evaluated after treatment in the two groups.
RESULTS:
Compared before treatment, the scores of IPSS, OABSS and QOL were decreased after 4 weeks of treatment and in follow-up in both groups (P<0.01, P<0.05). In the sacral four-point EA group, the scores of IPSS and QOL after 4 weeks of treatment and in follow-up were lower than those in the conventional EA group (P<0.05, P<0.01), and the OABSS score in follow-up was lower than that in the conventional EA group (P<0.05). After 4 weeks of treatment and in follow-up, the reductions of IPSS and OABSS scores compared before treatment in the sacral four-point EA group were larger than those in the conventional EA group (P<0.01, P<0.05); After 2, 4 weeks of treatment and in follow-up, the reductions of QOL score compared before treatment in the sacral four-point EA group were larger than those in the conventional EA group (P<0.01). No significant difference in PV was observed after treatment between the two groups (P>0.05). The total effective rate was 75.0% (21/28) in the sacral four-point EA group, which was higher than 39.3% (11/28) in the conventional EA group (P<0.01).
CONCLUSION
EA at "four points of sacral region" can effectively improve the LUTS, overactive bladder symptom and quality of life in patients with mild-to-moderate BPH, and has good short-term and long-term efficacy, although it can not reduce prostate volume.
Humans
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Male
;
Electroacupuncture
;
Prostatic Hyperplasia/complications*
;
Aged
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Middle Aged
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Lower Urinary Tract Symptoms/physiopathology*
;
Acupuncture Points
;
Treatment Outcome
;
Quality of Life
7.Intermittent fasting ameliorates rheumatoid arthritis by harassing deregulated synovial fibroblasts.
Lei LI ; Jin DONG ; Yumu ZHANG ; Chen ZHAO ; Wen WEI ; Xueqin GAO ; Yao YU ; Meilin LU ; Qiyuan SUN ; Yuwei CHEN ; Xuehua JIAO ; Jie LU ; Na YUAN ; Yixuan FANG ; Jianrong WANG
Chinese Medical Journal 2025;138(23):3201-3203
8.Associations between statins and all-cause mortality and cardiovascular events among peritoneal dialysis patients: A multi-center large-scale cohort study.
Shuang GAO ; Lei NAN ; Xinqiu LI ; Shaomei LI ; Huaying PEI ; Jinghong ZHAO ; Ying ZHANG ; Zibo XIONG ; Yumei LIAO ; Ying LI ; Qiongzhen LIN ; Wenbo HU ; Yulin LI ; Liping DUAN ; Zhaoxia ZHENG ; Gang FU ; Shanshan GUO ; Beiru ZHANG ; Rui YU ; Fuyun SUN ; Xiaoying MA ; Li HAO ; Guiling LIU ; Zhanzheng ZHAO ; Jing XIAO ; Yulan SHEN ; Yong ZHANG ; Xuanyi DU ; Tianrong JI ; Yingli YUE ; Shanshan CHEN ; Zhigang MA ; Yingping LI ; Li ZUO ; Huiping ZHAO ; Xianchao ZHANG ; Xuejian WANG ; Yirong LIU ; Xinying GAO ; Xiaoli CHEN ; Hongyi LI ; Shutong DU ; Cui ZHAO ; Zhonggao XU ; Li ZHANG ; Hongyu CHEN ; Li LI ; Lihua WANG ; Yan YAN ; Yingchun MA ; Yuanyuan WEI ; Jingwei ZHOU ; Yan LI ; Caili WANG ; Jie DONG
Chinese Medical Journal 2025;138(21):2856-2858
9.Protective effect of aliskiren on renal injury in AGT-REN double transgenic hypertensive mice.
Xiao-Ling YANG ; Yan-Yan CHEN ; Hua ZHAO ; Bo-Yang ZHANG ; Xiao-Fu ZHANG ; Xiao-Jie LI ; Xiu-Hong YANG
Acta Physiologica Sinica 2025;77(3):408-418
This study aims to investigate the effects of renin inhibitor aliskiren on kidney injury in human angiotensinogen-renin (AGT-REN) double transgenic hypertensive (dTH) mice and explore its possible mechanism. The dTH mice were divided into hypertension group (HT group) and aliskiren intervention group (HT+Aliskiren group), while wild-type C57BL/6 mice were served as the control group (WT group). Blood pressure data of mice in HT+Aliskiren group were collected after 28 d of subcutaneous penetration of aliskiren (20 mg/kg), and the damage of renal tissue structure and collagen deposition were observed by HE, Masson and PAS staining. The ultrastructure of kidney was observed by transmission electron microscope. Coomassie bright blue staining and biochemical analyzer were used to detect renal function injury. The expression of renin-angiotensin system (RAS) was determined by ELISA and immunohistochemistry. The contents of superoxide dismutase (SOD) and malondialdehyde (MDA) in kidney were determined by chemiluminescence method. The content of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase subunit p47phox, inducible nitric oxide synthase (iNOS), 3-nitrotyrosine (3-NT), NADPH oxidase 2 (NOX2) and NADPH oxidase 4 (NOX4) were detected by Western blot analysis. The results showed that compared with WT group, the blood pressure of mice in HT group was significantly increased. The renal tissue structure in HT group showed glomerular sclerosis, severe interstitial tubular injury, and increased collagen deposition. In addition, 24 h urinary protein, serum creatinine and urea levels increased. Serum and renal tissue levels of angiotensin II (Ang II) were increased, serum angiotensin-(1-7) [Ang-(1-7)] expression was decreased, and renal Ang-(1-7) expression was elevated. The expressions of ACE, Ang II type 1 receptor (AT1R) and MasR in renal tissue were increased, while the expression of ACE2 was decreased. MDA content increased, SOD content decreased, and the expressions of p47phox, iNOS, 3-NT, NOX2 and NOX4 were increased. However, aliskiren reduced blood pressure in dTH mice, improved renal structure and renal function, reduced Ang II and Ang-(1-7) levels in serum and renal tissue, reduced the expression of ACE and AT1R in renal tissue, increased the expression of ACE2 and MasR in renal tissue, and decreased the above levels of oxidative stress indexes in dTH mice. These results suggest that aliskiren may play a protective role in hypertensive renal injury by regulating the balance between ACE-Ang II-AT1R and ACE2-Ang-(1-7)-MasR axes and inhibiting oxidative stress.
Animals
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Fumarates/therapeutic use*
;
Mice
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Renin/antagonists & inhibitors*
;
Amides/therapeutic use*
;
Mice, Inbred C57BL
;
Hypertension/physiopathology*
;
Mice, Transgenic
;
Kidney/pathology*
;
Angiotensinogen/genetics*
;
Renin-Angiotensin System/drug effects*
;
NADPH Oxidases/metabolism*
;
Male
;
Antihypertensive Agents/pharmacology*
;
Humans
;
Superoxide Dismutase/metabolism*
;
NADPH Oxidase 4
10.Effect and mechanism of salt-processed Phellodendri Chinensis Cortex in improving insulin resistance based on network pharmacology and experimental verification.
Jin-Jie LEI ; Yang-Miao XIA ; Shang-Ling ZHAO ; Rui TAN ; Ling-Ying YU ; Zhi-Min CHEN
China Journal of Chinese Materia Medica 2025;50(9):2373-2381
This study explores the therapeutic differences and mechanisms of salt-processed Phellodendri Chinensis Cortex in improving insulin resistance(IR) based on network pharmacology, molecular docking, and cellular experiments. The components and intersection targets of Phellodendri Chinensis Cortex in improving IR were collected from databases, and a "drug-component-target-disease" network and protein-protein interaction(PPI) network were constructed to screen core components and targets. A total of 29 active components and 240 intersection targets were identified, of which 13 were core targets. Gene Ontology(GO) and Kyoto Encyclopedia of Genes and Genomes(KEGG) pathway enrichment analyses were used to identify key signaling pathways, and molecular docking was performed to validate the binding activity between core components and targets. An IR model in HepG2 cells was induced using insulin combined with high glucose, and the effects of Phellodendri Chinensis Cortex before and after salt-processing on cell glucose consumption were evaluated. The expression of proteins related to the mitogen-activated protein kinase(MAPK) and phosphatidylinositol 3-kinase(PI3K)-protein kinase B(AKT) signaling pathways was detected by Western blot. The cellular experimental results showed that, compared with the model group, glucose consumption in the drug-treated groups was significantly increased(P<0.01), the phosphorylation level of extracellular regulated protein kinase(ERK) was decreased(P<0.05), the phosphorylation levels of PI3K and AKT were increased, and the expression of glucose transporter 4(GLUT4) was also upregulated(P<0.05). Furthermore, the effect of salt-processed Phellodendri Chinensis Cortex was better than that of raw Phellodendri Chinensis Cortex. The study demonstrates that Phellodendri Chinensis Cortex, both before and after salt-processing, improves IR by regulating the expression of related proteins in the MAPK and PI3K-AKT signaling pathways, with enhanced effects after salt-processing.
Humans
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Network Pharmacology
;
Phellodendron/chemistry*
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Insulin Resistance
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Drugs, Chinese Herbal/chemistry*
;
Hep G2 Cells
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Signal Transduction/drug effects*
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Molecular Docking Simulation
;
Protein Interaction Maps/drug effects*
;
Proto-Oncogene Proteins c-akt/genetics*
;
Phosphatidylinositol 3-Kinases/genetics*
;
Glucose/metabolism*


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