1.Comparison of efficacy and safety of oral mucosa grafts and acellular dermal matrix grafts in the treatment of long-segment urethral stricture.
Wenyuan LENG ; Duan GAO ; Xiaoyu LI ; Wei ZUO ; Weimin HU ; Zhenpeng ZHU ; Chunru XU ; Jian LIN ; Xuesong LI
Journal of Peking University(Health Sciences) 2025;57(5):975-979
OBJECTIVE:
To investigate the differential efficacy and safety profiles of oral mucosa (OM) grafts compared with acellular dermal matrix (ADM) grafts in the surgical management of long-segment urethral strictures.
METHODS:
A retrospective cohort study was conducted involving 27 patients who underwent graft urethroplasty for long-segment urethral strictures in Peking University First Hospital, spanning from May 2010 to September 2023. The patient cohort comprised 14 individuals who received OM grafts and 13 who underwent ADM grafts. The participants were stratified into two groups based on the type of grafts material utilized during surgery. The demographic and clinical baseline characteristics included an average age of (43.3±14.0) years in the OM group and (54.2±15.9) years in the ADM group. The mean body mass index (BMI) for the respective groups were (24.7±4.3) kg/m2 for OM and (25.4±4.8) kg/m2 for ADM. Etiological differences were noted, with idiopathic causes predominantly in the OM cohort and lichen sclerosus in the ADM cohort.
RESULTS:
The surgical interventions were successfully executed for all the patients. The median stricture length was 4.5 (2.5, 9.0) cm for the OM group and 5.0 (2.0, 14.0) cm for the ADM group (P=0.555). The median operative duration was 160 (71, 221) min for the OM group and 134 (112, 274) min for the ADM group (P=0.065). The catheterization durations was 1.5 (1.0, 6.0) months for the OM group and 3.0 (1.0, 3.0) months for the ADM group. The median postoperative follow-up duration was 12.5 (1.0, 170.0) months for the OM group and 59.0 (3.0, 142.0) months for the ADM group. The surgical success rates were 50.00% in the OM group and 53.85% in the ADM group. No statistically significant differences were observed in postoperative quality of life (QoL) or international prostate symptom score (IPSS) at the final follow-up. The stricture-free survival rates did not differ significantly (HR=0.875, 95%CI: 0.507-1.511, P=0.6). In terms of safety, three patients in the OM group experienced sexual dysfunction, and two had oral complications, whereas the ADM group had one case of postoperative infection.
CONCLUSION
The findings suggest that ADM grafts are comparable to OM grafts in terms of efficacy and safety for the treatment of long-segment urethral strictures, including complex cases attributed to lichen sclerosus. However, given the small sample size of this study, the above conclusions may have certain limitations. Larger cohort studies will be needed in the future to further validate these findings.
Humans
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Urethral Stricture/surgery*
;
Acellular Dermis
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Mouth Mucosa/transplantation*
;
Retrospective Studies
;
Middle Aged
;
Male
;
Adult
;
Treatment Outcome
;
Skin Transplantation/methods*
;
Aged
2.Concept,Organizational Structure,and Medical Model of the Traditional Chinese Medicine Myocardial Infarction Unit
Jun LI ; Jialiang GAO ; Jie WANG ; Zhenpeng ZHANG ; Xinyuan WU ; Ji WU ; Zicong XIE ; Jingrun CUI ; Haoqiang HE ; Yuqing TAN ; Chunkun YANG
Journal of Traditional Chinese Medicine 2025;66(9):873-877
The traditional Chinese medicine (TCM) myocardial infarction (MI) unit is a standardized, regulated, and continuous integrated care unit guided by TCM theory and built upon existing chest pain centers or emergency care units. This unit emphasizes multidisciplinary collaboration and forms a restructured clinical entity without altering current departmental settings, offering comprehensive diagnostic and therapeutic services with full participation of TCM in the treatment of MI. Its core medical model is patient-centered and disease-focused, providing horizontally integrated TCM-based care across multiple specialties and vertically constructing a full-cycle treatment unit for MI, delivering prevention, treatment, and rehabilitation during the acute, stable, and recovery phases. Additionally, the unit establishes a TCM-featured education and prevention mechanism for MI to guide patients in proactive health management, reduce the incidence of myocardial infarction, and improve quality of life.
3.Mechanistic insights into the GEF activity of the human MON1A/CCZ1/C18orf8 complex.
Yubin TANG ; Yaoyao HAN ; Zhenpeng GUO ; Ying LI ; Xinyu GONG ; Yuchao ZHANG ; Haobo LIU ; Xindi ZHOU ; Daichao XU ; Yixiao ZHANG ; Lifeng PAN
Protein & Cell 2025;16(8):739-744
4.Total alkaloids from Thesium chinense inhibit lipopolysaccharide-induced respiratory inflammation by modulating Nrf2/NF-κB/NLRP3 signaling pathway.
Guohui LI ; Yueqin GUAN ; Lintao XU ; Guangcheng PENG ; Qingtong HAN ; Tian WANG ; Zhenpeng XU ; Xuesen WEN ; Hongxiang LOU ; Tao SHEN
Chinese Journal of Natural Medicines (English Ed.) 2025;23(4):421-430
Inflammation plays a pivotal role in the etiology and progression of various diseases. In traditional Chinese medicine, the whole plants of Thesium chinense Turcz. and its preparations (e.g. Bairui Granules) have been employed to manage inflammatory conditions. While flavonoids were previously considered the primary anti-inflammatory components, other potentially active constituents have been largely overlooked and not thoroughly investigated. This study presents a novel finding that the total alkaloids of T. chinense (BC-Alk) are potent active substances underlying the traditional and clinical applications of T. chinense and Bairui Granules as anti-inflammatory agents. UPLC-MS/MS analysis identified the composition of BC-Alk as quinolizidine alkaloids. The anti-inflammatory efficacy of BC-Alk was evaluated using a lipopolysaccharide (LPS)-induced lung inflammation model in mice. Results demonstrated that BC-Alk significantly mitigated LPS-induced lung inflammation, attenuated the overproduction of IL-1β and the overproduction of inflammatory factors (TNF-α), and ameliorated lung tissue hyperplasia in mice in vivo. Mechanistic studies in vitro revealed that BC-Alk upregulated the expression of Nrf2 and its downstream proteins NQO1 and glutamate-cystine ligase and modifier subunit (GCLM), inhibited NF-κB phosphorylation, and suppressed NLRP3 activation. Collectively, these findings indicate that BC-Alk exerts potent inhibitory effects against lung inflammation by modulating Nrf2, NF-κB, and NLRP3 pathways. This study provides new insights into the anti-inflammatory constituents of T. chinense and Bairui Granules.
Animals
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Lipopolysaccharides/adverse effects*
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Alkaloids/pharmacology*
;
NF-kappa B/metabolism*
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NF-E2-Related Factor 2/metabolism*
;
NLR Family, Pyrin Domain-Containing 3 Protein/metabolism*
;
Mice
;
Signal Transduction/drug effects*
;
Anti-Inflammatory Agents/pharmacology*
;
Male
;
Mice, Inbred C57BL
;
Humans
;
Drugs, Chinese Herbal/administration & dosage*
;
Pneumonia/genetics*
5.Effect of combination of partial body weight support and functional electrical stimulation on lower limb motor function after stroke
Xingxiu XIONG ; Zhenghui ZHANG ; Chunyan DENG ; Yunbo LI ; Zhenpeng CHEN ; Yuanjie LI ; Jing SONG
Chinese Journal of Rehabilitation Theory and Practice 2024;30(5):554-559
Objective To observe the effect of combination of partial body weight support and functional electrical stimulation on lower limb motor function for stroke patients. Methods From January,2023 to February,2024,60 stroke patients from Rehabilitation Hospital of Chancheng District People's Hospital in Foshan City were randomly divided into control group(n=30)and observation group(n=30).The control group received routine rehabilitation,while the observation group received a combination of ce-lestial orbit system and functional electrical stimulation in addition,for three weeks.They were assessed with Balance assessment and training system,Berg Balance Scale(BBS),Fugl-Meyer Assessment-Lower Extremities(FMA-LE)and Holden Functional Ambulation Category(FAC)before and after treatment. Results X-axis trajectory length,average speed of swaying,total wobble trajectory,Y-axis trajectory length,trajectory length per unit area,BBS score,FMA-LE score and FAC score improved in both groups after treatment(|t|>4.809,P<0.001);and all the indexes improved more in the observation group than in the control group(|t|>2.268,P<0.05),except X-axis trajectory length and average speed of swaying. Conclusion Supplement of the combination of partial body weight support and functional electrical stimulation is more effective on lower limb motor function,balance and walking for stroke patients.
6.Characteristics of ESBLs-positive Acinetobacter strains in children with and without diarrhea
ZHANG Yuan ; WANG Mengyu ; LI Zhenpeng
China Tropical Medicine 2024;24(11):1301-
Objective To analyze the drug resistance, genomic information, and genetic relationships of Extended-Spectrum β-Lactamases (ESBLs)-positive Acinetobacter strains colonized in the intestinal tract of children with and without diarrhea, and to explore the carrying status and distinguishing features of two group ESBLs-positive Acinetobacter strains. Methods A total of 842 fresh fecal samples were collected from children with and without diarrhea from a hospital in Shanghai, 2017-2019. ESBLs-resistant Acinetobacter strains were isolated and identified, followed by a drug sensitivity test and whole genome sequencing. A phylogenetic tree was constructed to explore the genetic relationship between Acinetobacter baumannii strains in this study and those isolated in China during the same period. Results A total of 13 ESBLs-positive Acinetobacter strains were isolated, including 11 strains in the diarrhea group and two strains in the non-diarrhea group, the positive rate of ESBLs strains in the diarrhea group was significantly higher than that in the non-diarrhea group (χ2=5.206, P=0.023). All strains showed a high resistance rate to the first-generation cephalosporins (100.0%) and the second-generation cephalosporins (100.0%), with a multidrug resistance rate of 53.8% (7/13). There was no significant difference in the rates of resistance to individual antibiotics and multidrug resistance between the two groups (P>0.05). The blaOXA resistance gene was carried by all strains on the chromosome, which encode enzymes that hydrolyze clinically important antibiotics such as third-generation cephalosporins and carbapenems. Adhesion-type virulence genes were carried by 92.3% (12/13) of the strains, and secretion-type virulence genes were present in 84.6% (11/13). Furthermore, 92.3% (12/13) of ESBLs-positive Acinetobacter strains carried plasmids, with one A. baumannii strain isolated from a non-diarrhea child carrying seven types of plasmids. The analysis of the phylogenetic relationship indicated that A. baumannii strains isolated in this study formed a clonal cluster, and also clustered with some strains from southern China during the same period. Conclusions ESBLs-positive Acinetobacter strains isolated from children with and without diarrhea exhibited serious drug resistance, carrying multiple resistance and virulence genes, as well as multiple plasmids. Carrying multiple plasmids may facilitate the horizontal transmission risk of drug-resistance genes and virulence genes, indicating the need to pay attention to the characteristics of intestinal colonized ESBLs-positive Acinetobacter strains in children and strengthen the monitoring of drug-resistant bacteria colonized in the intestine in healthy children.
7.bla NDM-1 Carried by a Transferable Plasmid in a Salmonella Strain Isolated from Healthy Individuals.
Wei ZENG ; Ming LUO ; Pengcheng DU ; Zhenpeng LI ; Yao PENG ; Mengyu WANG ; Wenxuan ZHAO ; Huayao ZHANG ; Yang LI ; Pengjie LUO ; Yannong WU ; Jialiang XU ; Xu LI ; Xin LU ; Biao KAN
Biomedical and Environmental Sciences 2024;37(11):1252-1261
OBJECTIVE:
Our study aimed to conduct genomic characterization of Salmonella strains carrying the bla NDM-1 gene in the intestinal tract of healthy individuals. The objectives were to underscore the importance of genomic surveillance for drug resistance in both commensal and pathogenic bacteria among healthy populations, and to establish protocols for regulating drug resistance plasmids based on the completion of a comprehensive map of drug resistance plasmid genomes.
METHODS:
We performed antimicrobial susceptibility testing and employed second- and third-generation sequencing techniques to analyze Salmonella strains harboring the bla NDM-1 gene, to surveil drug-resistant bacteria in the intestines of healthy subjects. Sequence comparison was conducted using both core- and pan-genome approaches. Concurrently, conjugation experiments were carried out to assess the efficiency of plasmid transfer.
RESULTS:
We isolated a carbapenem-resistant Salmonella enterica serovar Typhimurium strain from a healthy food worker in China. This strain harbored an IncHI2/IncHI2A plasmid carrying bla NDM-1 along with multiple antibiotic resistance genes (ARGs). Our findings highlight the potential for asymptomatic carriers to facilitate the transmission of ARGs. Pan-genomic analysis revealed that bla NDM-1-positive plasmids could traverse bacterial species barriers, facilitating cross-host transmission.
CONCLUSION
This study marks the first detection of bla NDM-1 in Salmonella strains isolated from healthy individuals. We underscore the risk associated with the transmission of conjugative hybrid plasmids carrying bla NDM-1, which have the potential to be harbored and transmitted among healthy individuals. Enhanced surveillance of drug-resistant pathogens and plasmids in the intestinal microbiota of healthy individuals could provide insights into the risk of ARG transmission and pathways for population-wide dissemination via ARG transfer factors.
beta-Lactamases/genetics*
;
Plasmids/genetics*
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Humans
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Anti-Bacterial Agents/pharmacology*
;
China
;
Microbial Sensitivity Tests
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Salmonella typhimurium/isolation & purification*
;
Salmonella/isolation & purification*
;
Salmonella Infections/microbiology*
8.Research on Diagnosis and Prescription System of Coronary Heart Disease with Syndrome Elements Based on Improved Transformer Algorithm
Hongzheng LI ; Jie WANG ; Yuchen GUO ; Zhenpeng ZHANG ; Jiannan LI ; Qianyi LI ; Yan DONG ; Qiang DU
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(1):148-154
ObjectiveTo construct a traditional Chinese medicine (TCM) syndrome diagnosis and prescription model for coronary heart disease with the improved Transformer algorithm. MethodTaking the syndrome elements of coronary heart disease as key links, the model was constructed based on the clinical diagnosis and treatment principle of "symptoms-syndrome elements-syndrome-treatment method-prescription-medicine (dose)". The basic logic of improved Transformer algorithm was constructed with multi-head attention mechanism, compound term vector and dropout, in order to form the model with functions of TCM syndrome elements judgment, syndrome diagnosis, prescription recommendation. After the model was constructed, it was trained by 8 030 cases. And 100 cases with TCM prescriptions were randomly selected for testing, and the model output prescriptions were compared with those of clinicians for qualitative evaluation of the model. ResultThe improved Transformer with multi-head attention improved the accuracy of the model. The model was consistent with clinicians in the judgment of main syndromes and the selection of prescriptions. Whereas there was a certain room for improvement in the addition and subtraction of medicines. ConclusionThe improved Transformer model can improve the accuracy and stability of output, which is an embodiment of the intelligent development of TCM.
9.Efficacy and safety of flurbiprofen cataplasms versus loxoprofen sodium cataplasms in knee osteoarthritis: a randomized controlled trial.
Dong LI ; Yinchu CHENG ; Ping YUAN ; Ziyang WU ; Jiabang LIU ; Jinfu KAN ; Kun ZHANG ; Zhanguo WANG ; Hui ZHANG ; Guangwu ZHANG ; Tao XUE ; Junxiu JIA ; Suodi ZHAI ; Zhenpeng GUAN
Chinese Medical Journal 2023;136(18):2187-2194
BACKGROUND:
Clinical trial evidence is limited to identify better topical non-steroidal anti-inflammatory drugs (NSAIDs) for treating knee osteoarthritis (OA). We aimed to compare the clinical efficacy and safety of flurbiprofen cataplasms (FPC) with loxoprofen sodium cataplasms (LSC) in treating patients with knee OA.
METHODS:
This is an open-label, non-inferiority randomized controlled trial conducted at Peking University Shougang Hospital. Overall, 250 patients with knee OA admitted from October 2021 to April 2022 were randomly assigned to FPC and LSC treatment groups in a 1:1 ratio. Both medications were administered to patients for 28 days. The primary outcome was the change of pain measured by visual analog scale (VAS) score from baseline to day 28 (range, 0-10 points; higher score indicates worse pain; non-inferiority margin: 1 point; superiority margin: 0 point). There were four secondary outcomes, including the extent of pain relief, the change trends of VAS scores, joint function scores measured by the Western Ontario and McMaster University Osteoarthritis Index (WOMAC), and adverse events.
RESULTS:
Among 250 randomized patients (One patient without complete baseline record in the flurbiprofen cataplasms was excluded; age, 62.8 ± 10.5 years; 61.4% [153/249] women), 234 (93.6%) finally completed the trial. In the intention-to-treat analysis, the decline of the VAS score for the 24-h most intense pain in the FPC group was non-inferior, and also superior to that in the LSC group (differences and 95% confidence interval, 0.414 (0.147-0.681); P <0.001 for non-inferiority; P = 0.001 for superiority). Similar results were observed of the VAS scores for the current pain and pain during exercise. WOMAC scores were also lower in the FPC group at week 4 (12.50 [8.00-22.50] vs . 16.00 [11.00-27.00], P = 0.010), mainly driven by the dimension of daily activity difficulty. In addition, the FPC group experienced a significantly lower incidence of adverse events (5.6% [7/124] vs . 33.6% [42/125], P <0.001), including irritation, rash and pain of the skin, and sticky hair uncovering pain.
CONCLUSIONS
This study suggested that FPC is superior to LSC for treating patients with knee OA in pain relief, joint function improvement, and safety profile.
Humans
;
Female
;
Middle Aged
;
Aged
;
Osteoarthritis, Knee/drug therapy*
;
Flurbiprofen/therapeutic use*
;
Anti-Inflammatory Agents, Non-Steroidal/therapeutic use*
;
Pain/drug therapy*
;
Treatment Outcome
;
Double-Blind Method
10.Genetic and histological relationship between pheromone-secreting tissues of the musk gland and skin of juvenile Chinese forest musk deer(Moschus berezovskii Flerov,1929)
LI LONG ; CAO HERAN ; YANG JINMENG ; JIN TIANQI ; MA YUXUAN ; WANG YANG ; LI ZHENPENG ; CHEN YINING ; GAO HUIHUI ; ZHU CHAO ; YANG TIANHAO ; DENG YALONG ; YANG FANGXIA ; DONG WUZI
Journal of Zhejiang University. Science. B 2023;24(9):807-822,中插1-中插4
Background:The musk glands of adult male Chinese forest musk deer(Moschus berezovskii Flerov,1929)(FMD),which are considered as special skin glands,secrete a mixture of sebum,lipids,and proteins into the musk pod.Together,these components form musk,which plays an important role in attracting females during the breeding season.However,the relationship between the musk glands and skin of Chinese FMD remains undiscovered.Here,the musk gland and skin of Chinese FMD were examined using histological analysis and RNA sequencing(RNA-seq),and the expression of key regulatory genes was evaluated to determine whether the musk gland is derived from the skin.Methods:A comparative analysis of musk gland anatomy between juvenile and adult Chinese FMD was conducted.Then,based on the anatomical structure of the musk gland,skin tissues from the abdomen and back as well as musk gland tissues were obtained from three juvenile FMD.These tissues were used for RNA-seq,hematoxylin-eosin(HE)staining,immunohistochemistry(IHC),western blot(WB),and quantitative real-time polymerase chain reaction(qRT-PCR)experiments.Results:Anatomical analysis showed that only adult male FMD had a complete glandular organ and musk pod,while juvenile FMD did not have any well-developed musk pods.Transcriptomic data revealed that 88.24%of genes were co-expressed in the skin and musk gland tissues.Kyoto Encyclopedia of Genes and Genomes(KEGG)signaling pathway analysis found that the genes co-expressed in the abdomen skin,back skin,and musk gland were enriched in biological development,endocrine system,lipid metabolism,and other pathways.Gene Ontology(GO)enrichment analysis indicated that the genes expressed in these tissues were enriched in biological processes such as multicellular development and cell division.Moreover,the Metascape predictive analysis tool demonstrated that genes expressed in musk glands were skin tissue-specific.qRT-PCR and WB revealed that sex-determining region Y-box protein 9(Sox9),Caveolin-1(Cav-1),and androgen receptor(AR)were expressed in all three tissues,although the expression levels differed among the tissues.According to the IHC results,Sox9 and AR were expressed in the nuclei of sebaceous gland,hair follicle,and musk gland cells,whereas Cav-1 was expressed in the cell membrane.Conclusions:The musk gland of Chinese FMD may be a derivative of skin tissue,and Sox9,Cav-1,and AR may play significant roles in musk gland development.

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