1.Global and China-US epidemiology and treatment status of valvular heart disease
Mei LIU ; Qing WANG ; Shiwen XIONG ; Changdong ZHANG ; Xiaoke SHANG
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2026;33(01):105-114
Objective To systematically analyze the disease burden, long-term trends, and age-sex distribution of major valvular heart disease (VHD) subtypes—rheumatic heart disease (RHD), non-rheumatic valvular disease (NRVD), and non-rheumatic calcific aortic valve disease (CAVD)—in global, Chinese, and US populations from 1990 to 2021, providing evidence for public health strategies and clinical resource allocation. Methods Based on publicly available data from the Global Burden of Disease (GBD) Study 2021, we extracted incidence, mortality, and disability-adjusted life years (DALYs) for VHD from 1990 to 2021. Age-standardized rates (ASRs) were calculated using the GBD 2021 global standard population, and the estimated annual percentage change (EAPC) with its 95% uncertainty interval (UI) was computed for the period. Data from the Agency for Healthcare Research and Quality (AHRQ), the European Society of Cardiology (ESC)/Eurostat surveys, and Chinese national registries were used for trend triangulation and contextual background. Results From 1990 to 2021, the ASR and disease burden of RHD significantly decreased globally and in China (EAPC for DALYs in China: −4.8%, 95%UI: −5.0% to −4.6%). In contrast, the burden of NRVD and CAVD steadily increased in aging populations like those in China and the US, with a higher burden observed in older adults and males. In 2021, the incidence of NRVD and CAVD peaked in individuals aged ≥65 years, with rates being significantly higher in men than in women. RHD burden was concentrated in low socio-demographic index (SDI) regions, whereas NRVD/CAVD burden was strongly associated with high-SDI regions. Conclusion The global VHD epidemiological landscape is transitioning from an RHD-dominant to an NRVD/CAVD-dominant pattern. China faces a dual challenge of a residual RHD burden and a rapidly growing burden of degenerative valvular diseases. Developing tailored screening, prevention, and treatment strategies for different disease subtypes and populations is crucial.
2.Identification and functional characterization of a new flavonoid glycosyltransferase from Rheum palmatum.
Shiwen ZHANG ; Jianzhen ZOU ; Zitong HAO ; Mengqi GAO ; Gang ZHANG ; Mengmeng LIU
Chinese Herbal Medicines 2025;17(2):307-314
OBJECTIVE:
To characterize a glycosyltransferase (RpUGT1) from Rheum palmatum and investigate its specificity toward flavonoid compounds.
METHODS:
The RpUGT1 was expressed in Escherichia coli and screened for catalytic activity against a range of flavonoid substrates using a high-throughput HPLC assay method. Mass spectrometry (MS) and nuclear magnetic resonance (NMR) were used to determine the structure of the product. Homology modeling, molecular docking analyses and site-directed mutagenesis studies were conducted to identify key residues responsible for its function.
RESULTS:
The recombinant RpUGT1 protein exhibited catalytic activity towards various flavonoids. Notably, RpUGT1 catalyzed the glycosylation of isorhamnetin to form 3-O-glucoside and kaempferol to form 7-O-glucoside, utilizing uridine diphosphate (UDP) glucose as the sugar donor. The homology modeling and molecular docking analyses identified key residues responsible for its activity. Subsequent site-directed mutagenesis studies highlighted the crucial role of K307 in catalysis.
CONCLUSION
These discoveries offer valuable perspectives on the role of the UGT family and establish a groundwork for forthcoming research on the synthesis of flavonoids in plants.
3.Correlation Between Traditional Chinese Medicine Constitution and Clinical Characteristics of Allergic Rhinitis in Adults:A Survey of 215 Cases in Shenzhen Area
Tiantian LI ; Jiaxin LIU ; Tian FENG ; Yanchun XIAO ; Shiwen LIU ; Yunying LI ; Xiangjun CHEN
Journal of Guangzhou University of Traditional Chinese Medicine 2025;42(4):803-812
Objective To investigate the correlation between the clinical characteristics of allergic rhinitis(AR)in adults located in Shenzhen area and the traditional Chinese medicine(TCM)constitutions.Methods A cross-sectional survey of adult AR patients in Shenzhen was conducted.From June 2022 to December 2023,adult AR patients admitted to the Department of Otolaryngology outpatient clinic of Bao'an Traditional Chinese Medicine Hospital Affiliated to Guangzhou University of Chinese Medicine(Shenzhen Bao'an District Hospital of Traditional Chinese Medicine)were selected as the study subjects.The clinical baseline data,Total Nasal Symptoms Score(TNSS),and Total Non-Nasal Symptoms Score(TNNSS)of the patients were collected for the analysis of clinical characteristics,and TCM constitutions were differentiated based on the information collected by TCM constitutions questionnaire.After that,the correlation between the biased TCM constitutions and clinical characteristics were explored by using analysis of variance,non-parametric test and Logistic regression analysis.Results(1)A total of 215 cases of adult AR patients from Shenzhen were included.Most of the patients were male(60.93%),and the patients were usually aged 18-29 years old(accounting for 48.84%).AR in adults often arose in the spring(33.49%)and fall(30.70%).(2)Lung qi deficiency-cold syndrome was the predominated TCM syndrome type of AR in adults,accounting for 40.93%,and then came kidney yang deficiency syndrome(26.98%),spleen qi deficiency syndrome(20.00%),and heat accumulation in lung meridian syndrome(12.09%).Lung qi deficiency-cold syndrome and heat accumulation in lung meridian syndrome were more common in young males,and kidney yang deficiency syndrome was frequently seen in middle-aged and elderly males.(3)The leading three TCM constitution types of AR in adults were qi deficiency constitution(30.23%),yang deficiency constitution(24.65%),and inherited special constitution(15.81%).In adult AR patients with lung qi deficiency-cold syndrome,the commonly-seen TCM constitution types were qi deficiency constitution,inherited special constitution,and balanced constitution.In adult AR patients with spleen qi deficiency syndrome,the commonly-seen TCM constitution types were inherited special constitution,phlegm-damp constitution,and yang deficiency constitution.In adult AR patients with kidney yang deficiency syndrome,the commonly-seen TCM constitution types were yang deficiency constitution,qi stagnation constitution,and inherited special constitution.In adult AR patients with heat accumulation in lung meridian syndrome,the commonly-seen TCM constitution types were damp-heat constitution,yin deficiency constitution,and blood-stasis constitution.The leading five TNSS scores were shown in adult AR patients with inherited special constitution,qi deficiency constitution,yang deficiency constitution,phlegm-damp constitution,and qi stagnation constitution,respectively.And the leading five TNNSS scores were shown in adult AR patients with yang deficiency constitution,inherited special constitution,qi stagnation constitution,yin deficiency constitution,and damp-heat constitution,respectively.(4)The results of statistical analysis showed that the differences in gender among the adult AR patients with various TCM constitution types were not statistically significant(P>0.05),but the differences in age groups,TCM syndrome types,TNSS scores and TNNSS scores were statistically significant(P<0.01 or P<0.001).(5)The results of Logistic regression analysis showed that the TNSS scores and TNNSS scores were all positively correlated with qi deficiency constitution,yang deficiency constitution,and inherited special constitution,and spleen qi deficiency syndrome was negatively correlated with damp-heat constitution,the differences being all statistically significant(P<0.01 or P<0.001).Conclusion The onset of AR in adults from Shenzhen area is closely related to age,gender,season,and TCM constitutions.The adult AR patients usually have the biased constitutions,in particular qi deficiency constitution,yang deficiency constitution,and inherited special constitution.In adult AR patients,higher TNSS scores are correlated with inherited special constitution,higher TNNSS scores are correlated with yang deficiency constitution,and the primary TCM syndrome type of lung qi deficiency-cold syndrome is correlated with qi deficiency constitution.
4.Effect of Aurantii Fructus Immaturus on Intestinal Motility and SCF/c-Kit Pathway in Mice with Slow-Transit Constipation
Yanhong DU ; Aizhen LIN ; Xiaohan LIU ; Shiwen YIN
Journal of Guangzhou University of Traditional Chinese Medicine 2025;42(8):2028-2034
Objective To investigate the therapeutic effects and mechanisms of Aurantii Fructus Immaturus(AFI)on slow-transit constipation(STC)in mice.Methods A STC model was established via intragastric administration of Loperamide Hydrochloride.Successfully modeled mice were randomized into a model group,low-and high-dose AFI groups,a high-dose AFI+Masitinib[tyrosine kinase(c-Kit)inhibitor]group,additionally,a normal group was set up.After intervention,intestinal transit rate,6-hour fecal pellet number,fecal water content,and colonic histomorphology(hematoxylin-eosin staining)were assessed.Enzyme-linked immunosorbent assay(ELISA)was used to measure levels of 5-hydroxytryptamine(5-HT),vasoactive intestinal polypeptide(VIP),substance P(SP),nitric oxide(NO),and nitric oxide synthase(NOS)activity in colon tissue.Quantitative real-time PCR(qRT-PCR)was used to evaluate mRNA expression of stem cell factor(SCF)and c-Kit in colon tissue,Western Blot was used to analyze relative protein expression of aquaporin 3(AQP3),aquaporin 8(AQP8),SCF,and c-Kit in colon tissue.Results Compared with the normal group,there was devere colonic damage observed in the colon tissue of the mice in the model group,the fecal pellet number,fecal water content,intestinal transit rate,colon tissue SP content,c-Kit and SCF gene and protein expression levels were reduced.The contents of 5-HT,VIP and NO,NOS activity and the protein expression levels of AQP3 and AQP8 in colon tissue were increased,and the differences were statistically significant(P<0.05).Compared with the model group,the colonic injury of mice in the low-and high-does AFI groups showed obvious improvement,the fecal pellet number,fecal water content,intestinal transit rate,colon tissue SP content,c-Kit and SCF gene and protein expression levels were increased,the contents of 5-HT,VIP and NO,NOS activity and the protein expression levels of AQP3 and AQP8 in colon tissue were decreased(P<0.05).Masitinib partially reversed the laxative effects of AFI(P<0.05).Conclusion AFI enhances intestinal motility,alleviates colonic injury,and improves defecation in STC mice,potentially via activation of the SCF/c-Kit pathway.
5.Magnesium promotes vascularization and osseointegration in diabetic states.
Linfeng LIU ; Feiyu WANG ; Wei SONG ; Danting ZHANG ; Weimin LIN ; Qi YIN ; Qian WANG ; Hanwen LI ; Quan YUAN ; Shiwen ZHANG
International Journal of Oral Science 2024;16(1):10-10
Diabetes has long been considered a risk factor in implant therapy and impaired wound healing in soft and hard oral tissues. Magnesium has been proved to promote bone healing under normal conditions. Here, we elucidate the mechanism by which Mg2+ promotes angiogenesis and osseointegration in diabetic status. We generated a diabetic mice model and demonstrated the alveolar bone healing was compromised, with significantly decreased angiogenesis. We then developed Mg-coating implants with hydrothermal synthesis. These implants successfully improved the vascularization and osseointegration in diabetic status. Mechanically, Mg2+ promoted the degradation of Kelch-like ECH-associated protein 1 (Keap1) and the nucleation of nuclear factor erythroid 2-related factor 2 (Nrf2) by up-regulating the expression of sestrin 2 (SESN2) in endothelial cells, thus reducing the elevated levels of oxidative stress in mitochondria and relieving endothelial cell dysfunction under hyperglycemia. Altogether, our data suggested that Mg2+ promoted angiogenesis and osseointegration in diabetic mice by regulating endothelial mitochondrial metabolism.
Mice
;
Animals
;
Kelch-Like ECH-Associated Protein 1/metabolism*
;
Magnesium/metabolism*
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Osseointegration
;
Diabetes Mellitus, Experimental/metabolism*
;
Endothelial Cells/metabolism*
;
NF-E2-Related Factor 2/metabolism*
6.Practice Advances of Family Pharmacist in Domestic and Aboard Based on CiteSpace
Qingfang WU ; Kexin LIU ; Shiwen YANG ; Na SU
Herald of Medicine 2024;43(1):68-77
Objective To analyze and discuss the current research status,hotspots,frontiers,and progress in work practice of family pharmacists both in domestic and abroad by Citespace.Methods The database of Web of Science Core Collection and CNKI were selected for data extraction.They searched for literature from the database from establishment to April 1,2023 using the topic words"family pharmacist"and"home pharmaceutical care"both in Chinese and English.The network diagrams of essential nodes such as authors,countries,institutions,and key words were analyzed and drawn Results A total of 439 Chinese and 572 English literatures were included in the study.Scholars such as Mei Shen,Shihui Bao,Zhongzhuang Wang,Hughes Carmel M,Jamieson Hamish A,and Chen Timothy F have significantly contributed.The UK and the United States were leading countries in family pharmacists.Most of China's top ten research institutions were from Shanghai,Beijing.The top five Chinese literature keywords were pharmaceutical care,community,pharmacist,rational drug use,family pharmacist.The top five English literature keywords were pharmaceutical care,care,management,older people,and impact.Conclusions According to keyword clustering and burst analysis,research hotspots in foreign countries mainly focus on pharmaceutical services,adverse drug reactions,adherence,etc.,which is consistent with the development direction of pharmaceutical services in China.However,domestic pharmacy's development and literature publication are slightly behind those of foreign countries,and there is still some development space for pharmaceutical services in China.
7.Mechanism of Wenfei Huaxian Decoction-containing Serum in Delaying Inflammatory Senescence of Lung Mesenchymal Stem Cells Based on NAMPT/SIRT1
Junxia HU ; Yueqi XU ; Jun WANG ; Guoshaung ZHU ; Shiwen KE ; Mingliang QIU ; Liangji LIU ; Lisha MO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(12):45-53
ObjectiveThe lung mesenchymal stem cells (LMSCs) induced by D-galactose (D-gal) were intervened by Wenfei Huaxian decoction-containing serum to explore the mechanism of Wenfei Huaxian decoction in delaying the senescence of LMSCs through the nicotinamide phosphoribosyltransferase/silent information regulator 1 (NAMPT/SIRT1) signaling pathway. MethodWenfei Huaxian decoction-containing serum was prepared. LMSCs were isolated by gradient density centrifugation, and they were cultured and identified in vitro. The senescence model in vitro was established by stimulating cells via D-gal for 24 h. LMSCs cells were modeled after being treated with different volume fractions (5%, 10%, 20%, 40%, and 80%) of Wenfei Huaxian decoction-containing serum for 24 h, and the cell proliferation level was detected by methyl thiazolyl tetrazolium (MTT) method. The cells were randomly divided into blank serum group, model group, and high, medium, and low dose groups of Wenfei Huaxian decoction-containing serum. Senescence-associated β-galactosidase (SA-β-gal) staining was used to detect the senescence of LMSCs in each group. The content of NAD + was detected by colorimetry. The levels of senescence-associated factors (p16 and p53), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α) in cell culture supernatant were detected by enzyme-linked immunosorbent assay (ELISA). Western blot was used to detect the relative expression of senescence-associated proteins and NAMPT/SIRT1 signaling pathway-related proteins. ResultCompared with the blank serum group, the proliferation of LMSCs was significantly inhibited after D-gal stimulation for 24 h (P<0.01). Compared with the model group, the proliferation of LMSCs could be promoted after intervention with the corresponding Wenfei Huaxian decoction-containing serum (P<0.05, P<0.01). Compared with the blank serum group, the SA-β-gal staining of LMSCs in the model group after D-gal stimulation was enhanced, and the content of NAD+ was increased (P<0.01). The expression levels of senescence factors p16 and p53, as well as SASP pro-inflammatory factors IL-6 and TNF-α in the cell culture supernatant, were significantly increased (P<0.01). The expression of senescence-associated proteins p16, p21, and p53 increased (P<0.01), and the protein expression of NAMPT, SIRT1, peroxisome proliferator-activated receptor γ coactivator 1α (PGC-1α), and forkhead box family transcription factor O1 (FoxO1) decreased (P<0.01). Compared with the model group, the SA-β-gal staining of LMSCs in each group of Wenfei Huaxian decoction-containing serum was significantly reduced, and the content of NAD+ was decreased (P<0.01). The senescence factors (p16 and p53) and inflammatory factors (IL-6 and TNF-α) in the cell culture supernatant were significantly decreased (P<0.01). The expression of senescence-associated proteins (P16, P21, and P53) decreased (P<0.05, P<0.01). The protein expressions of NAMPT, SIRT1, PGC-1α, and FoxO1 were significantly up-regulated (P<0.05, P<0.01). ConclusionWenfei Huaxian decoction can alleviate senescence and inflammatory response damage of D-gal-induced LMSCs, and its mechanism may be related to the regulation of the NAMPT/SIRT1 signaling pathway.
8.Effect of individualized PEEP combined with regular lung recruitment maneuvers on atelectasis after laparoscopic radical resection of colorectal cancer in elderly patients
Hongyang JIANG ; Shiwen FAN ; Tielong LIU ; Liping XIE
Tianjin Medical Journal 2024;52(2):182-187
Objective To evaluate the effect of driving pressure(DP)-guided individualized positive end-expiratory pressure(PEEP)combined with regular lung recruitment maneuvers(RMs)on atelectasis in elderly patients undergoing laparoscopic surgery in the Trendelenburg position using lung ultrasound.Methods A total of 62 patients aged 65-85 years old and classified by ASA status Ⅰ-Ⅲ undergoing laparoscopic radical resection of colorectal cancer were included and randomly divided into the experimental group(n=31)and the control group(n=31).Both groups received one RM after the beginning of pneumoperitoneum,followed immediately by titration of individualized PEEP with the lowest DP,and both groups received another RM after the end of pneumoperitoneum.The experimental group received additional RM every 30 min from the beginning of pneumoperitoneum,while the control group received no intervention.Recording time points for observation were:before induction of anesthesia(T0),30 min after pneumoperitoneum(T1),90 min after pneumoperitoneum(T2),at the end of surgery(T3)and 45 min after entering the postanesthesia care unit(PACU,T4).Lung ultrasound score(LUS)was recorded at T0,T3 and T4.Dynamic lung compliance(Cdyn)was recorded at T1-T3.Oxygenation index(OI),mean arterial pressure(MAP)and heart rate(HR)were recorded at T0-T4.Hypotension during RM,hypoxic saturation events in PACU and the incidence of pulmonary complications(POPC)within the first 7 days after surgery were recorded.Results Compared with the control group,LUSs at T3 and T4 were significantly decreased in the experimental group(P<0.05),and OI and Cdyn at T2 and T3 were significantly increased(P<0.05).In addition,the incidence of hypoxia saturation events in PACU was lower in the experimental group than that in the control group(P<0.05).There were no significant differences in the incidence of hypotension during lung recruitment and the incidence of POPC within 7 days after surgery between the two groups.Conclusion The individualized PEEP combined with regular RMs can effectively reduce the atelectasis observed by lung ultrasound immediately after laparoscopic radical resection of colorectal cancer and in PACU in elderly patients.
9.Magnesium promotes vascularization and osseointegration in diabetic states
Liu LINFENG ; Wang FEIYU ; Song WEI ; Zhang DANTING ; Lin WEIMIN ; Yin QI ; Wang QIAN ; Li HANWEN ; Yuan QUAN ; Zhang SHIWEN
International Journal of Oral Science 2024;16(1):122-133
Diabetes has long been considered a risk factor in implant therapy and impaired wound healing in soft and hard oral tissues.Magnesium has been proved to promote bone healing under normal conditions.Here,we elucidate the mechanism by which Mg2+ promotes angiogenesis and osseointegration in diabetic status.We generated a diabetic mice model and demonstrated the alveolar bone healing was compromised,with significantly decreased angiogenesis.We then developed Mg-coating implants with hydrothermal synthesis.These implants successfully improved the vascularization and osseointegration in diabetic status.Mechanically,Mg2+ promoted the degradation of Kelch-like ECH-associated protein 1(Keap1)and the nucleation of nuclear factor erythroid 2-related factor 2(Nrf2)by up-regulating the expression of sestrin 2(SESN2)in endothelial cells,thus reducing the elevated levels of oxidative stress in mitochondria and relieving endothelial cell dysfunction under hyperglycemia.Altogether,our data suggested that Mg2+ promoted angiogenesis and osseointegration in diabetic mice by regulating endothelial mitochondrial metabolism.
10.Magnesium promotes vascularization and osseointegration in diabetic states
Liu LINFENG ; Wang FEIYU ; Song WEI ; Zhang DANTING ; Lin WEIMIN ; Yin QI ; Wang QIAN ; Li HANWEN ; Yuan QUAN ; Zhang SHIWEN
International Journal of Oral Science 2024;16(1):122-133
Diabetes has long been considered a risk factor in implant therapy and impaired wound healing in soft and hard oral tissues.Magnesium has been proved to promote bone healing under normal conditions.Here,we elucidate the mechanism by which Mg2+ promotes angiogenesis and osseointegration in diabetic status.We generated a diabetic mice model and demonstrated the alveolar bone healing was compromised,with significantly decreased angiogenesis.We then developed Mg-coating implants with hydrothermal synthesis.These implants successfully improved the vascularization and osseointegration in diabetic status.Mechanically,Mg2+ promoted the degradation of Kelch-like ECH-associated protein 1(Keap1)and the nucleation of nuclear factor erythroid 2-related factor 2(Nrf2)by up-regulating the expression of sestrin 2(SESN2)in endothelial cells,thus reducing the elevated levels of oxidative stress in mitochondria and relieving endothelial cell dysfunction under hyperglycemia.Altogether,our data suggested that Mg2+ promoted angiogenesis and osseointegration in diabetic mice by regulating endothelial mitochondrial metabolism.

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