1.Interventional effect and mechanism of Bifidobacterium in chronic liver disease
Liyi PAN ; Yueqiao CHEN ; Yu CHEN ; Yuyun HUANG ; Hao PEI ; Fenglan WU ; Lyuping YE ; Na WANG
Journal of Clinical Hepatology 2026;42(2):464-471
Compared with traditional therapies for chronic liver disease (CLD), Bifidobacterium has the characteristics of multi-target intervention, high biosafety, and good host compatibility and provides new strategies for intervention of CLD progression in terms of microecological regulation. Various studies have shown that Bifidobacterium regulates liver homeostasis and exerts a therapeutic effect on CLD by regulating intestinal flora, maintaining antioxidation, promoting energy consumption, alleviating inflammation, improving glycolipid metabolism, and exerting an antitumor effect. This article systematically reviews the studies on Bifidobacterium in the treatment of CLD in China and globally, explores their different mechanisms, and elaborates on the interaction between related signaling pathways (such as the nuclear factor erythroid 2-related factor 2 signaling pathway and the adenosine monophosphate-activated protein kinase signaling pathway) and the liver, in order to provide a basis for probiotic intervention in liver pathology, as well as new ideas for the comprehensive treatment of CLD.
2.Preliminary evaluation of the effect of comprehensive health management on the prevention and treatment of ischemic stroke
Shuai ZHU ; Genming ZHAO ; Yiying ZHANG ; Dongni LIANG ; Hongjie YU ; Qian PENG ; Fang XIANG ; Na WANG
Journal of Public Health and Preventive Medicine 2026;37(2):89-93
Objective To evaluate the short-term effects of comprehensive health management interventions for stroke high-risk population screening on the prevention and treatment of ischemic stroke, and to provide reference and basis for improving and exploring health management and prevention strategies for stroke high-risk population. Methods From 2018 to 2022, 13 community health service centers in Jiading District, Shanghai were selected in the present study. Based on information push platform, stroke risk assessment and health intervention follow-up were conducted for community residents through convenience sampling. The residents were divided into a full course intervention group (intervention group) and a routine intervention group (control group) according to different health intervention measures and forms. The incidence of ischemic stroke in the two groups of survey subjects was tracked within 36 months. Results A total of 52144 subjects were included in the study. The total number of patients in the full course intervention group was 14227, with an incidence density of 577.32/100 000 (556.49/100 000-598.12/100 000), which was lower than that of the conventional intervention group (37 917), with an incidence density of 1 485.47/100 000 (1 464.99/100 000-1 505.94/100 000) (χ2=2490.212, P<0.001). The relative risk of the full course intervention group was 0.39, and the relative risk of stroke risk factors in the full course intervention group from low to high was 0.33, 0.43, 0.45, and 0.49, respectively. The incidence density of males in the full course intervention group was 660.76 (627.46/100 000 - 694.05/100 000), with a relative risk of 0.43, and the incidence density of female patients was 509.71/100 000 (483.37/100 000 - 536.05/100 000), with a relative risk of 0.35. The overall incidence density of the population under 62 years old gourp, 62-75 years old group and over 75 years old group was 197.45/100 000 (173.09/100 000 -221.80/100 000), 608.36/100 000 (580.19/100 000-636.54/100 000), and 1 025.06/100 000 (958.51/100 000-1 091.61/100 000), with relative risks of 0.51, 0.44, and 0.38, respectively. Conclusion Comprehensive health management measures can effectively reduce the short-term risk of ischemic stroke, and should be further promoted and improved to enhance the effectiveness of stroke prevention and control.
3.Effect of miR-196b-5p in adipose-derived stem cell exosomes on burn wound healing in rats
Na ZUO ; Qi TANG ; Meng YU ; Kai TAO
Chinese Journal of Tissue Engineering Research 2026;30(1):43-49
BACKGROUND:Currently,miR-196b-5p has been found to play a role in cell proliferation,migration and inhibition of scar hyperplasia,but there is a lack of relevant studies on whether it plays a role in the process of wound healing.OBJECTIVE:To investigate the effect of miR-196b-5p in adipose stem cell-derived exosomes on burn wound healing.METHODS:The models of deep second degree skin burn in SD rats were established and randomly divided into four groups:blank control group,exosome group,agomiR-196b-5p group,and exosome+antagomiR-196b-5p group,with 10 rats in each group.PBS,adipose-derived stem cell-derived exosomes,miR-196b-5p agonist,and miR-196b-5p inhibitor were injected around the wound according to different groups.Wound healing was observed immediately after injury and on days 7,14,and 21 after injury.On day 7 after surgery,hematoxylin-eosin staining was used to observe the expression of inflammation in the wound surface.On day 14 after suregery,Masson staining was used to observe the expression of collagen and immunohistochemical staining was used to observe the expression of CD31 in the wound surface.On day 7 after surgery,western blot assay was performed to detect the expression of α-smooth muscle actin and type Ⅰ collagen in the wound surface.RESULTS AND CONCLUSION:(1)The wound healing was faster in the agomiR-196b-5p group,while it was slower in the blank control group and the exosome+antagomiR-196b-5p group.(2)Compared with the blank control group and the exosome+antagomiR-196b-5p group,the wound infiltration of inflammatory cells was less in the exosome group and the agomiR-196b-5p group,and the expression of CD31 was significantly increased(P<0.01).(3)Compared with the blank control group and the exosome+antagomiR-196b-5p group,the expression levels of α-smooth muscle actin and type Ⅰ collagen were increased in the exosome group and the agomiR-196b-5p group(P<0.05).These findings indicate that miR-196b-5p in adipose stem cell-derived exosomes can promote burn wound healing in rats.
4.Effect of miR-196b-5p in adipose-derived stem cell exosomes on burn wound healing in rats
Na ZUO ; Qi TANG ; Meng YU ; Kai TAO
Chinese Journal of Tissue Engineering Research 2026;30(1):43-49
BACKGROUND:Currently,miR-196b-5p has been found to play a role in cell proliferation,migration and inhibition of scar hyperplasia,but there is a lack of relevant studies on whether it plays a role in the process of wound healing.OBJECTIVE:To investigate the effect of miR-196b-5p in adipose stem cell-derived exosomes on burn wound healing.METHODS:The models of deep second degree skin burn in SD rats were established and randomly divided into four groups:blank control group,exosome group,agomiR-196b-5p group,and exosome+antagomiR-196b-5p group,with 10 rats in each group.PBS,adipose-derived stem cell-derived exosomes,miR-196b-5p agonist,and miR-196b-5p inhibitor were injected around the wound according to different groups.Wound healing was observed immediately after injury and on days 7,14,and 21 after injury.On day 7 after surgery,hematoxylin-eosin staining was used to observe the expression of inflammation in the wound surface.On day 14 after suregery,Masson staining was used to observe the expression of collagen and immunohistochemical staining was used to observe the expression of CD31 in the wound surface.On day 7 after surgery,western blot assay was performed to detect the expression of α-smooth muscle actin and type Ⅰ collagen in the wound surface.RESULTS AND CONCLUSION:(1)The wound healing was faster in the agomiR-196b-5p group,while it was slower in the blank control group and the exosome+antagomiR-196b-5p group.(2)Compared with the blank control group and the exosome+antagomiR-196b-5p group,the wound infiltration of inflammatory cells was less in the exosome group and the agomiR-196b-5p group,and the expression of CD31 was significantly increased(P<0.01).(3)Compared with the blank control group and the exosome+antagomiR-196b-5p group,the expression levels of α-smooth muscle actin and type Ⅰ collagen were increased in the exosome group and the agomiR-196b-5p group(P<0.05).These findings indicate that miR-196b-5p in adipose stem cell-derived exosomes can promote burn wound healing in rats.
5.Clinical Phenotype Identification and Validation of Patients with Sepsis in the Intensive Care Unit
Chao GONG ; Na YU ; Haoran CHEN
Medical Journal of Peking Union Medical College Hospital 2025;16(3):710-721
To identify and validate the clinical phenotypes of patients with sepsis in the intensive care unit(ICU). We applied unsupervised machine learning algorithms (K-means clusteringand hierarchical clustering) to identify the phenotypes of sepsis patients in the Medical Information Mart for Intensive Care Ⅳ (MIMIC-Ⅳ) 2.2 database, based on 89 clinical features including demographic characteristics, laboratory indicators and treatment measures on the first day in ICU. Then, supervised machine learning algorithms (lightweight gradient boosting machine) were used for the prediction of the patient's phenotypes, and were further combined with SHAP (Shapely Additive eXplanations) for the identification of important features. Finally, traditional statistical methods were used to validate the differences in clinical characteristics and clinical outcomes among the phenotypes. We identified three phenotypes in 22 517 sepsis patients. The phenotype 1 patients had the highest risk of death (28-day mortality of 46.4%), dominated by abnormal renal function and elevated disease severity scores, while the phenotype 3 patients had the lowest risk of death (28-day mortality of 11.2%), and the best neurological function score. Using interpretable machine learning, we identified six features (all the worst value on the first day) that showed good performance in phenotypic identification(AUC≥0.89) and phenotypic prognostic prediction (AUC≥0.74): anion gap, blood urea nitrogen, creatinine, Glasgow Coma Scale score, prothrombin time, and Sequential Organ Failure Assessment score. The mortality risk of phenotype 3 patients was the lowest at 28 days, 60 days, 90 days, and 1 year after ICU discharge ( Using machine learning methods, we successfully identified three clinical phenotypes of sepsis patients with different clinical characteristics and prognosis and screened out six key clinical features, which are expected to play an important role in the phenotype classification and prognostic assessment of sepsis and are conducive to individualized treatment.
6.Mechanism of Quanduzhong Capsules in treating knee osteoarthritis from perspective of spatial heterogeneity.
Zhao-Chen MA ; Zi-Qing XIAO ; Chu ZHANG ; Yu-Dong LIU ; Ming-Zhu XU ; Xiao-Feng LI ; Zhi-Ping WU ; Wei-Jie LI ; Yi-Xin YANG ; Na LIN ; Yan-Qiong ZHANG
China Journal of Chinese Materia Medica 2025;50(8):2209-2216
This study aims to systematically characterize the targeted effects of Quanduzhong Capsules on cartilage lesions in knee osteoarthritis by integrating spatial transcriptomics data mining and animal experiments validation, thereby elucidating the related molecular mechanisms. A knee osteoarthritis model was established using Sprague-Dawley(SD) rats, via a modified Hulth method. Hematoxylin and eosin(HE) staining was employed to detect knee osteoarthritis-associated pathological changes in knee cartilage. Candidate targets of Quanduzhong Capsules were collected from the HIT 2.0 database, followed by bioinformatics analysis of spatial transcriptomics datasets(GSE254844) from cartilage tissues in clinical knee osteoarthritis patients to identify spatially specific disease genes. Furthermore, a "formula candidate targets-spatially specific genes in cartilage lesions" interaction network was constructed to explore the effects and major mechanisms of Quanduzhong Capsules in distinct cartilage regions. Experimental validation was conducted through immunohistochemistry using animal-derived biospecimens. The results indicated that Quanduzhong Capsules effectively inhibited the degenerative changes in the cartilage of affected joints in rats, which was associated with the regulation of Quanduzhong Capsules on the thioredoxin-interacting protein(TXNIP)-NOD-like receptor family pyrin domain containing 3(NLRP3)-bone morphogenetic protein receptor type 2(BMPR2)-fibronectin 1(FN1)-matrix metallopeptidase 2(MMP2) signal axis in the articular cartilage surface and superficial zones, subsequently inhibiting cartilage matrix degradation leading to oxidative stress and inflammatory diffusion. In summary, this study clarifies the spatially specific targeted effects and protective mechanisms of Quanduzhong Capsules within pathological cartilage regions in knee osteoarthritis, providing theoretical and experimental support for the clinical application of this drug in the targeted therapy on the inflamed cartilage.
Animals
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Osteoarthritis, Knee/metabolism*
;
Drugs, Chinese Herbal/administration & dosage*
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Rats, Sprague-Dawley
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Rats
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Male
;
Humans
;
Capsules
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Female
;
Disease Models, Animal
7.A New Agenda for Optimizing Roles and Infrastructure in a Mental Health Service Model for South Korea
Eunsoo KIM ; Hyeon-Ah LEE ; Yu-Ri LEE ; In Suk LEE ; Kyoung-Sae NA ; Seung-Hee AHN ; Chul-Hyun CHO ; Hwoyeon SEO ; Soo Bong JUNG ; Sung Joon CHO ; Hwa-Young LEE
Psychiatry Investigation 2025;22(1):26-39
Objective:
As the demand for community mental health services continues to grow, the need for well-equipped and organized services has become apparent. This study aimed to optimize the roles and infrastructure of mental health services, by establishing, among other initiatives, standardized operating models.
Methods:
The study was conducted in multiple phases from May 12, 2021, to December 29, 2021. Stakeholders within South Korea and metropolitan mental health welfare centers were targeted, but addiction management support centers, including officials, patients, and their families, were integrated as well. A literature review and survey, focus group interviews, a Delphi survey, and expert consultation contributed to comprehensive revisions and improvements of the mental health service model.
Results:
The proposed model for community mental health welfare centers emphasizes the expansion of personnel and infrastructure, with a focus on severe mental illnesses and suicide prevention. The model for metropolitan mental health welfare centers delineates essential tasks in areas such as project planning and establishment, community research, and education about severe mental illnesses. The establishment of a 24-hour emergency intervention center was a crucial feature. In the integrated addiction support center model, the need to promote addiction management is defined as an essential task and the establishment of national governance for addiction policies is recommended.
Conclusion
This study proposed standard operating models for three types of mental health service centers. To meet the increasing need for community care, robust mental health service delivery systems are of primary importance.
8.In-depth identification of para-Bombay blood type in cancer patients using third-generation sequencing technology.
Na WANG ; Xiurong YU ; Yujuan CHEN
Chinese Journal of Cellular and Molecular Immunology 2025;41(2):148-153
Objective To precisely identify the para-Bombay blood types in cancer patients at our hospital, establish a robust system for the identification of challenging blood types in our laboratory, and provide a foundation for precise transfusion practices. Methods We retrospectively analyzed the blood type results of 91 874 cancer patients from January 1, 2019, to December 31, 2023. Conventional serological methods were used to screen for blood types, and suspected para-Bombay blood types were identified. Further analysis was performed using Pacific Biosciences (PacBio) single-molecule real-time sequencing and Sanger sequencing was used to determine the genotypes of the ABO, FUT1, and FUT2 genes. Results Eight cases of para-Bombay blood type were confirmed through serological and molecular biological methods. The FUT1 genotypes identified were: 5 cases of h1h1 (homozygous mutation 551_552delAG) and 3 cases of h1h2 (compound heterozygous mutations of 551_552delAG and 880_882delTT). The FUT2 genotypes identified were: 2 cases of Se357/Se357, 716 and 4 cases of Se357/Se357. Additionally, one sample revealed a novel heterozygous mutation, 818C>T, in exon 7 of the ABO gene, which was confirmed by PacBio sequencing to be located on the O haplotype. Conclusion PacBio sequencing technology demonstrates significant advantages in analyzing the haplotypes of para-Bombay blood type genes. This approach supports the establishment of a robust system for the identification of challenging blood types and provides novel evidence for precise transfusion practices in cancer patients.
Humans
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Neoplasms/genetics*
;
Fucosyltransferases/genetics*
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ABO Blood-Group System/genetics*
;
Male
;
High-Throughput Nucleotide Sequencing/methods*
;
Galactoside 2-alpha-L-fucosyltransferase
;
Female
;
Retrospective Studies
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Genotype
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Middle Aged
;
Blood Grouping and Crossmatching/methods*
;
Adult
;
Mutation
;
Aged
9.Novel biallelic MCMDC2 variants were associated with meiotic arrest and nonobstructive azoospermia.
Hao-Wei BAI ; Na LI ; Yu-Xiang ZHANG ; Jia-Qiang LUO ; Ru-Hui TIAN ; Peng LI ; Yu-Hua HUANG ; Fu-Rong BAI ; Cun-Zhong DENG ; Fu-Jun ZHAO ; Ren MO ; Ning CHI ; Yu-Chuan ZHOU ; Zheng LI ; Chen-Cheng YAO ; Er-Lei ZHI
Asian Journal of Andrology 2025;27(2):268-275
Nonobstructive azoospermia (NOA), one of the most severe types of male infertility, etiology often remains unclear in most cases. Therefore, this study aimed to detect four biallelic detrimental variants (0.5%) in the minichromosome maintenance domain containing 2 ( MCMDC2 ) genes in 768 NOA patients by whole-exome sequencing (WES). Hematoxylin and eosin (H&E) demonstrated that MCMDC2 deleterious variants caused meiotic arrest in three patients (c.1360G>T, c.1956G>T, and c.685C>T) and hypospermatogenesis in one patient (c.94G>T), as further confirmed through immunofluorescence (IF) staining. The single-cell RNA sequencing data indicated that MCMDC2 was substantially expressed during spermatogenesis. The variants were confirmed as deleterious and responsible for patient infertility through bioinformatics and in vitro experimental analyses. The results revealed four MCMDC2 variants related to NOA, which contributes to the current perception of the function of MCMDC2 in male fertility and presents new perspectives on the genetic etiology of NOA.
Humans
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Male
;
Azoospermia/genetics*
;
Meiosis/genetics*
;
Spermatogenesis/genetics*
;
Adult
;
Exome Sequencing
;
Microtubule-Associated Proteins/genetics*
;
Alleles
;
Infertility, Male/genetics*
10.Zhu-Tokita-Takenouchi-Kim syndrome in a neonate.
Wei-Na LIU ; Ya-Lei PI ; Xing-Yu BAI ; Hui-Fen CHEN
Chinese Journal of Contemporary Pediatrics 2025;27(3):373-376
The patient is a male neonate born at term. He was admitted 16 minutes after birth due to stridor and inspiratory respiratory distress. Physical examination revealed a cleft palate, and a grade II systolic ejection murmur was audible at the left sternal border. Whole exome sequencing identified a heterozygous variant in the SON gene, c.5753-5756del (p.Val1918GlufsTer87), which was absent in either parent, indicating a de novo mutation. According to the guidelines of the American College of Medical Genetics and Genomics, this was classified as a "pathogenic variant" leading to a diagnosis of Zhu-Tokita-Takenouchi-Kim (ZTTK) syndrome. Upon admission, symptomatic supportive treatment was provided. Follow-up at the age of 8 months revealed persistent stridor; the infant could only consume small amounts of milk and was unable to sit steadily. This patient represents the youngest reported case to date, and his symptoms expand the clinical spectrum of the disease, providing valuable insights for clinical diagnosis and treatment.
Humans
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Infant, Newborn
;
Male
;
Minor Histocompatibility Antigens/genetics*
;
DNA-Binding Proteins/genetics*
;
Rare Diseases/genetics*
;
Neurodevelopmental Disorders/genetics*


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