1.Rutin inhibits ultraviolet irradiation-induced dermal fibroblast senescence and melanogenesis in mouse ear skin
Bolin DUAN ; Qianwen LI ; Yue LE ; Mengmeng GENG ; Longfei LUO ; Tiechi LEI
Chinese Journal of Dermatology 2025;58(9):801-807
Objective:To investigate effects of rutin on ultraviolet irradiation (UVR) -induced human dermal fibroblast (FB) senescence and melanogenesis in mouse ear skin.Methods:The third- to fifth-passage FBs were divided into 4 groups: a blank control group, a UVR group, a rutin group, and a combined treatment group. In the UVR group, FBs were irradiated using an ultraviolet irradiator at a single dose of 0.6 J/cm 2 UVA combined with 0.03 J/cm 2 UVB once daily for 5 consecutive days; FBs in the rutin group were cultured in Dulbecco's modified Eagle medium containing 50 μmol/L rutin for 5 days; the combined treatment group received both UVR and the treatment with 50 μmol/L rutin for 5 days; the blank control group underwent no treatment. β-Galactosidase staining was performed to assess the senescence of FBs, real-time quantitative PCR (qPCR) to measure the telomere length in FBs, and Western blot analysis to detect the expression levels of stem cell factor (SCF) in FB cell lysates and culture supernatants. FB culture supernatants were collected from each group, and mixed with M254 medium at a ratio of 3∶1 to prepare conditioned medium, which was then used to treat PIG1 melanocytes for 24 hours. Western blot analysis was conducted to determine the tyrosinase (TYR) expression in PIG1 melanocytes in each group, while the 5-ethynyl-2′-deoxyuridine (EdU) incorporation assay was applied to assess the proliferative activity of PIG1 cells in each group. Ten Dct-LacZ transgenic mice were divided into a control group and a UVR group. For each mouse, 5% rutin-containing cream was topically applied to the right ear after UVR, while the left ear treated with the cream base alone served as a control. Skin biopsies were performed after 4 weeks, followed by X-gal staining and Avidin/fluorescein isothiocyanate (FITC) staining to count the numbers of melanocytes and mast cells in mouse ear skin. Results:In the UVR group, the number of senescent FBs (25.67 ± 2.89), relative protein expression levels of SCF (1.95 ± 0.22), and relative levels of SCF in the cell culture supernatant (1.52 ± 0.34) were all significantly higher than those in the blank control group (5.67 ± 1.56, 0.95 ± 0.11, 1.01 ± 0.31, respectively), while these indicators were significantly lower in the combined treatment group (12.00 ± 1.63, 1.32 ± 0.19, 1.15 ± 0.32, respectively) than in the UVR group (all P < 0.05). The relative telomere length in FBs was significantly shorter in the UVR group (0.49 ± 0.12) than in the blank control group (0.94 ± 0.11; LSD- t = 3.15, P = 0.021), but significantly longer in the combined treatment group (0.81 ± 0.13) than in the UVR group (LSD- t = 4.30, P = 0.034). After the treatment with FB conditioned medium, the relative expression level of TYR in PIG1 melanocytes and the number of EdU-positive cells were significantly higher in the UVR group (2.54 ± 0.21, 33.54 ± 3.21, respectively) than in the blank control group (0.97 ± 0.19, 21.45 ± 2.51, respectively; both P < 0.001), but significantly lower in the combined treatment group (1.63 ± 0.12, 18.54 ± 3.87, respectively) than in the UVR group (both P < 0.001). X-gal staining and Avidin/FITC staining showed that the numbers of melanocytes and mast cells in the mouse left ear skin in the UVR group (5.00 ± 1.22, 98.60 ± 8.47, respectively) were significantly higher than those in the mouse left ear skin in the control group (1.80 ± 0.45, 53.80 ± 5.76, respectively) and those in the mouse right ear skin treated with the rutin-containing cream in the UVR group (2.80 ± 0.45, 69.60 ± 8.89, respectively) (all P < 0.05) . Conclusion:Rutin may inhibit UVR-induced skin melanogenesis by suppressing the senescence of dermal FBs and paracrine secretion of SCF.
2.Rutin inhibits ultraviolet irradiation-induced dermal fibroblast senescence and melanogenesis in mouse ear skin
Bolin DUAN ; Qianwen LI ; Yue LE ; Mengmeng GENG ; Longfei LUO ; Tiechi LEI
Chinese Journal of Dermatology 2025;58(9):801-807
Objective:To investigate effects of rutin on ultraviolet irradiation (UVR) -induced human dermal fibroblast (FB) senescence and melanogenesis in mouse ear skin.Methods:The third- to fifth-passage FBs were divided into 4 groups: a blank control group, a UVR group, a rutin group, and a combined treatment group. In the UVR group, FBs were irradiated using an ultraviolet irradiator at a single dose of 0.6 J/cm 2 UVA combined with 0.03 J/cm 2 UVB once daily for 5 consecutive days; FBs in the rutin group were cultured in Dulbecco's modified Eagle medium containing 50 μmol/L rutin for 5 days; the combined treatment group received both UVR and the treatment with 50 μmol/L rutin for 5 days; the blank control group underwent no treatment. β-Galactosidase staining was performed to assess the senescence of FBs, real-time quantitative PCR (qPCR) to measure the telomere length in FBs, and Western blot analysis to detect the expression levels of stem cell factor (SCF) in FB cell lysates and culture supernatants. FB culture supernatants were collected from each group, and mixed with M254 medium at a ratio of 3∶1 to prepare conditioned medium, which was then used to treat PIG1 melanocytes for 24 hours. Western blot analysis was conducted to determine the tyrosinase (TYR) expression in PIG1 melanocytes in each group, while the 5-ethynyl-2′-deoxyuridine (EdU) incorporation assay was applied to assess the proliferative activity of PIG1 cells in each group. Ten Dct-LacZ transgenic mice were divided into a control group and a UVR group. For each mouse, 5% rutin-containing cream was topically applied to the right ear after UVR, while the left ear treated with the cream base alone served as a control. Skin biopsies were performed after 4 weeks, followed by X-gal staining and Avidin/fluorescein isothiocyanate (FITC) staining to count the numbers of melanocytes and mast cells in mouse ear skin. Results:In the UVR group, the number of senescent FBs (25.67 ± 2.89), relative protein expression levels of SCF (1.95 ± 0.22), and relative levels of SCF in the cell culture supernatant (1.52 ± 0.34) were all significantly higher than those in the blank control group (5.67 ± 1.56, 0.95 ± 0.11, 1.01 ± 0.31, respectively), while these indicators were significantly lower in the combined treatment group (12.00 ± 1.63, 1.32 ± 0.19, 1.15 ± 0.32, respectively) than in the UVR group (all P < 0.05). The relative telomere length in FBs was significantly shorter in the UVR group (0.49 ± 0.12) than in the blank control group (0.94 ± 0.11; LSD- t = 3.15, P = 0.021), but significantly longer in the combined treatment group (0.81 ± 0.13) than in the UVR group (LSD- t = 4.30, P = 0.034). After the treatment with FB conditioned medium, the relative expression level of TYR in PIG1 melanocytes and the number of EdU-positive cells were significantly higher in the UVR group (2.54 ± 0.21, 33.54 ± 3.21, respectively) than in the blank control group (0.97 ± 0.19, 21.45 ± 2.51, respectively; both P < 0.001), but significantly lower in the combined treatment group (1.63 ± 0.12, 18.54 ± 3.87, respectively) than in the UVR group (both P < 0.001). X-gal staining and Avidin/FITC staining showed that the numbers of melanocytes and mast cells in the mouse left ear skin in the UVR group (5.00 ± 1.22, 98.60 ± 8.47, respectively) were significantly higher than those in the mouse left ear skin in the control group (1.80 ± 0.45, 53.80 ± 5.76, respectively) and those in the mouse right ear skin treated with the rutin-containing cream in the UVR group (2.80 ± 0.45, 69.60 ± 8.89, respectively) (all P < 0.05) . Conclusion:Rutin may inhibit UVR-induced skin melanogenesis by suppressing the senescence of dermal FBs and paracrine secretion of SCF.
3.Reducing language barriers, promoting information absorption, and communication using fanyi
Difei WANG ; Guannan CHEN ; Lin LI ; Shaodi WEN ; Zijing XIE ; Xiao LUO ; Li ZHAN ; Shuangbin XU ; Junrui LI ; Rui WANG ; Qianwen WANG ; Guangchuang YU
Chinese Medical Journal 2024;137(16):1950-1956
Interpreting genes of interest is essential for identifying molecular mechanisms, but acquiring such information typically involves tedious manual retrieval. To streamline this process, the fanyi package offers tools to retrieve gene information from sources like National Center for Biotechnology Information (NCBI), significantly enhancing accessibility. Additionally, understanding the latest research advancements and sharing achievements are crucial for junior researchers. However, language barriers often restrict knowledge absorption and career development. To address these challenges, we developed the fanyi package, which leverages artificial intelligence (AI)-driven online translation services to accurately translate among multiple languages. This dual functionality allows researchers to quickly capture and comprehend information, promotes a multilingual environment, and fosters innovation in academic community. Meanwhile, the translation functions are versatile and applicable beyond biomedicine research to other domains as well. The fanyi package is freely available at https://github.com/YuLab-SMU/fanyi.
4.Numerical Simulation of Biomechanics of Two Aortic Root Replacement Procedures with Valve Preservation
Qian WANG ; Xinjin LUO ; Juntao QIU ; Shengyi HU ; Xuechao DING ; Tianming DU ; Yanping ZHANG ; Qianwen HOU ; Aike QIAO
Journal of Medical Biomechanics 2024;39(4):691-698
Objective To elucidate the influence of two procedures aortic root remodeling using a straight tubular artificial vessel while preserving the aortic valve and the Florida sleeve procedure on the biomechanics of the aortic root.Methods Five finite element models of the aortic root were reconstructed using computed tomography angiography images,including two cases of aortic root remodeling(A1 and A2),two cases of the Florida sleeve procedure(B1 and B2),and one control group without aortic root pathology(C).Numerical simulations were performed to obtain the blood flow and pressure distribution result to assess the differences in the hemodynamics of the aortic root.Results There were no significant differences in the peak systolic velocity between the two procedures and the control.However,the flow velocity after aortic root remodeling was smoother,similar to the model of the control group,with a more stable average aortic pressure and wall shear stress.In the Florida sleeve procedure,high-speed blood flow affected the vessel wall,leading to various degrees of wall shear stress and pressure concentrations along the aortic wall.Conclusions After aortic root replacement with valve preservation,blood flow patterns in the reconstructed aortic root depended on postoperative changes in sinus geometry.Both surgical procedures showed favorable blood flow patterns;however,the flow pattern after aortic root remodeling was more stable than that after the Florida sleeve procedure.
5.Correlation between blood lipid level and gastric cancer
Wei JI ; Quanlin GUAN ; Yarui CHEN ; Fuzhi JIAO ; Qianwen LUO
Journal of International Oncology 2023;50(3):183-185
Patients with gastric cancer often have different degrees of dyslipidemia, and the level of lipid changes is closely related to the occurrence, development and prognosis of gastric cancer. The mechanism of lipid metabolism in gastric cancer has also attracted much attention, and it may be related to the reverse cholesterol transport function, antioxidant and anti-inflammatory properties of high-density lipoprotein cholesterol. In addition, statins may reduce the risk of gastric cancer and associated mortality. Further research on the correlation between blood lipid levels and gastric cancer is aimed to provide new ideas for the future prevention and precision diagnosis and treatment of gastric cancer.
6.Research status of TCM human resources in China based on bibliometrics
Jiaying SUN ; Jinping LUO ; Qianwen ZHANG ; Wenqiang YIN ; Zhongming CHEN ; Qichao REN ; Dongping MA
China Pharmacy 2023;34(24):2975-2981
OBJECTIVE To understand the current status of research on traditional Chinese medicine(TCM) human resources, and to provide a reference for expanding research ideas on TCM human resources and promoting the construction of TCM talents. METHODS From January 1, 2000 to December 31, 2022, literature related to TCM human resources was collected from the three major databases of CNKI, Wanfang and VIP. Using CiteSpace 5.8 R3 software, visualization analysis was performed for the literature in terms of publication time, journal sources, authors, institutions and areas, funding, research content, keywords, etc. RESULTS A total of 324 literature related to TCM human resources in China were included, and the number of literature issued showed an upward trend, with an annual average of 14.09 literature; 161 kinds of journals were involved, core journals accounted for 18.21% of the total publication volume; a total of 23 authors had published 2 or more literature, with a total of 55 literature published (16.98%); a total of 416 institutions were involved, mainly schools (66.83%); 60.49% of the literature were supported by the fund. The majorities of 324 literature were survey studies (170 literature), and most of them used self-designed questionnaires (55 literature); the high-frequency keywords included talent training, human resources, TCM, etc. The keywords were clustered into 7 categories, such as “human resources“”talent training“”TCM industry“”TCM services“”talent training models” “fairness” and “TCM talents”. The main problems described in the literature included insufficient talent, lack of reasonable distribution of regional structure, lack of reasonable plans for talent training, and insufficient professional knowledge and abilities. Continuously cultivating high-level talents and improving employment conditions in areas with severe human resource loss were the corresponding countermeasures proposed in the literature. CONCLUSIONS The research on TCM human resources starts late but has developed rapidly overall, and the quality of research needs to be improved; the structure of research team is single and unevenly distributed geographically; there is a structural imbalance in the allocation of human resources, as well as problems such as a shortage of professional talents, low levels of education and training and incomplete development systems.
7.Nutritional therapy recommendations for patients with coronavirus disease 2019 (COVID-19) in Ruijin Hospital (2023 edition)
Yongmei SHI ; Yongmei JIANG ; Xi LUO ; Qianwen JIN ; Erzhen CHEN
Journal of Surgery Concepts & Practice 2023;28(1):49-52
Nutritional support is one of the comprehensive treatments for the patients with novel coronavirus infection, especially for critically ill patients. Nutritional therapy needs to follow the standard process, which includes nutritional risk screening, assessment, intervention and monitoring. Nutrition intervention is recommended to follow the principle of "five-step" of nutritional therapy. Appropriated diet and evidence-based nutritional support should be given to improve the nutritional status and immunologic function of the patients, and to get best of overall clinical outcomes.
9.Association between Metabolic Syndrome and Microvascular Complications in Chinese Adults with Type 1 Diabetes Mellitus
Qianwen HUANG ; Daizhi YANG ; Hongrong DENG ; Hua LIANG ; Xueying ZHENG ; Jinhua YAN ; Wen XU ; Xiangwen LIU ; Bin YAO ; Sihui LUO ; Jianping WENG
Diabetes & Metabolism Journal 2022;46(1):93-103
Background:
Both type 1 diabetes mellitus (T1DM) and metabolic syndrome (MetS) are associated with an elevated risk of morbidity and mortality yet with increasing heterogeneity. This study primarily aimed to evaluate the prevalence of MetS among adult patients with T1DM in China and investigate its associated risk factors, and relationship with microvascular complications.
Methods:
We included adult patients who had been enrolled in the Guangdong T1DM Translational Medicine Study conducted from June 2010 to June 2015. MetS was defined according to the updated National Cholesterol Education Program criterion. Logistic regression models were used to estimate the odds ratio (OR) for the association between MetS and the risk of diabetic kidney disease (DKD) and diabetic retinopathy (DR).
Results:
Among the 569 eligible patients enrolled, the prevalence of MetS was 15.1%. While female gender, longer diabetes duration, higher body mass index, and glycosylated hemoglobin A1c (HbA1c) were risk factors associated with MetS (OR, 2.86, 1.04, 1.14, and 1.23, respectively), received nutrition therapy education was a protective factor (OR, 0.46). After adjustment for gender, age, diabetes duration, HbA1c, socioeconomic and lifestyle variables, MetS status was associated with an increased risk of DKD and DR (OR, 2.14 and 3.72, respectively; both P<0.05).
Conclusion
Although the prevalence of MetS in adult patients with T1DM in China was relatively low, patients with MetS were more likely to have DKD and DR. A comprehensive management including lifestyle modification might reduce their risk of microvascular complications in adults with T1DM.
10.ThevalueofspectralCTimagingfordifferentiatingrenalfat-poor angiomyolipomafromchromophobecellrenalcarcinoma
Qianwen WANG ; Qi CHENG ; Dongxing CAO ; Yingzi LUO ; Feng HE ; Yan ZHOU
Journal of Practical Radiology 2019;35(4):584-588
Objective Toexplorethevalueofmulti-parameterquantitativeanalysisofspectralCTimaging (GSI)indifferentiatingrenal fat-poorangiomyolipoma(fpAML)andchromophobecellrenalcarcinoma(CCRC).Methods 42patientswithrenaltumor,including 25caseswithfpAMLand17caseswithCCRC,wereretrospectivelyanalyzed.Allofthem werescannedinGSImode.Themorphology differencesbetweenthefpAMLgroupandtheCCRCgroupwereanalyzed.GSIViewersoftwarewasusedtocalculatetheiodineconcentration (IC),thenormalizediodineconcentration(NIC),thesloperateofthespectrumenergycurveinthecorticalphase(CP)andmedullaryphase (MP),respectively.Thedifferencesofthoseparameterswerecomparedbetweenthetwogroupsusingthetwo-simplettest.Results Somecharacteristicsigns,suchas"blackspots"sign,cracksignandnecrosishadthevaluefordifferentialdiagnosis.IntheCP,theIC ofthefpAMLandCCRCgroupwere30.20±5.25vs19.97±4.01,theNICswere0.45±0.10vs0.32±0.06,andthesloperatesof spectrumenergycurveswere3.45±1.23vs2.42±0.48,respectively.IntheNP,theICofthefpAMLandCCRCgroupwere27.84± 8.07vs22.94±4.46,theNICswere0.58±0.17vs0.46±0.11,andthesloperatesofthespectrumenergycurveswere3.24±1.25vs 2.69±0.47,respectively.Thereweresignificantdifferencesbetween2groups(P<0.05).TheNICintheCPprovidedhighsensitivity (75%)andspecificity(86%)indifferentiatingfpAMLfrom CCRC,andtheareaundertheROCcurvewas0.886.Conclusion The focalcysticandnecrotic,enhanceduniformityanddegree,"blackspots"sign,cracksignand multi-parametersofGSI,includingIC, NIC,andthesloperateofthespectrumenergycurvecouldplayimportantroleindifferentialdiagnosisbetweenfpAMLandCCRC.

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