1.Pharmacological effects and drug design research progress of fucoxanthin
Yuxin ZHANG ; Ziyang DENG ; Can WANG ; Dan ZENG
China Pharmacy 2025;36(17):2216-2220
Fucoxanthin is a pigment found in plants and animals such as algae, marine plankton and aquatic shellfish, and holds significant potential for development in the pharmaceutical field. This review introduces the anti-inflammatory, antioxidant, anticancer, anti-obesity, and other pharmacological effects of fucoxanthin, as well as recent advances in drug design research. It was found that fucoxanthin can exert anti-inflammatory and antioxidant effects through mechanisms such as activating AMP- activated protein kinase related signaling pathways, regulating the expression of inflammatory factors, altering microbial stability, thereby improving conditions such as metabolic associated fatty liver disease and colitis. It can exert selective antitumor effects through multi-target synergistic actions; and it was also found that it can exert anti-obesity effects by regulating the intestinal microbiota. Its characteristic functional groups (such as hydroxyl and epoxy groups) possess target specificity and reversible inhibitory properties, making it a suitable template for guiding the design and development of novel drugs, thereby providing new insights for breaking through the limitations of traditional drug design.
2.Causal relationship between circulating cytokines and keloids: A Mendelian randomized study.
Xuan CHEN ; Kexin DENG ; Jianda ZHOU ; Can LIU
Journal of Central South University(Medical Sciences) 2025;50(7):1145-1157
OBJECTIVES:
Keloids are fibrotic skin disorders characterized by excessive collagen deposition and a high recurrence rate, closely associated with inflammatory mediators. However, existing epidemiological studies are limited by confounding factors and reverse causality, making it difficult to establish causation. This study aims to investigate the causal relationship between circulating cytokines and keloids using Mendelian randomization analysis.
METHODS:
Significant single nucleotide polymorphisms (SNPs) associated with circulating cytokines (exposures) and keloids (outcomes) were extracted from genome-wide association study (GWAS) summary datasets. Eligible SNPs were selected as instrumental variables (IVs). Exposure data were derived from a cytokine GWAS including 8 293 Finnish participants, and outcome data from a keloid GWAS based on the UK Biobank. The inverse-variance weighted (IVW) method served as the primary analytical approach to estimate causal effects, supplemented by weighted median (WME), MR-Egger regression, and other sensitivity analyses. Horizontal pleiotropy was assessed using MR-Egger regression and the MR pleiotropy residual sum and outlier (MR-PRESSO) test, while Cochran's Q test evaluated heterogeneity. Leave-one-out analysis was used to verify robustness and consistency. A reverse MR analysis was also conducted, with keloid as the exposure and cytokines as outcomes, to rule out reverse causation.
RESULTS:
IVW analysis identified significant positive causal associations between two cytokines and keloids-macrophage migration inhibitory factor (MIF) [odds ratio (OR)=2.081, 95% confidence interval (CI) 1.219 to 3.552, P=0.007] and monocyte chemoattractant protein-1 (MCP-1) (OR=1.673, 95% CI 1.036 to 2.701, P=0.035). Conversely, stem cell factor (SCF) showed a negative causal relationship with keloids (OR=0.518, 95% CI 0.269 to 0.998, P=0.049). Results from the MR-Egger and weighted median analyses were consistent with IVW findings. No evidence of horizontal pleiotropy was observed (P>0.05). Except for interleukin-6 (P=0.014), no heterogeneity was detected in other cytokines. Leave-one-out analysis further confirmed the robustness of the causal associations. In reverse MR analysis, keloids were causally related only to β-nerve growth factor (beta-NGF) (OR=1.048, 95% CI 1.002 to 1.095, P=0.039), with no heterogeneity or pleiotropy detected in most cytokines (P>0.05).
CONCLUSIONS
MIF and MCP-1 exhibit positive causal associations with keloid formation, while SCF shows a negative causal relationship. These findings provide new evidence for the causal involvement of inflammatory cytokines in keloid pathogenesis and offer potential molecular targets for developing novel keloid therapies.
Humans
;
Keloid/blood*
;
Mendelian Randomization Analysis
;
Cytokines/genetics*
;
Polymorphism, Single Nucleotide
;
Genome-Wide Association Study
;
Chemokine CCL2/genetics*
;
Interleukin-6/genetics*
;
Macrophage Migration-Inhibitory Factors/genetics*
;
Male
;
Stem Cell Factor/blood*
;
Female
;
Intramolecular Oxidoreductases
3.Epidemic characteristics of measles and efforts to control measles infections in Zhejiang Province, China
Rui YAN ; Mengya YANG ; Hanqing HE ; Yan FENG ; Yang ZHOU ; Xuewen TANG ; Xuan DENG ; Yao ZHU ; Yuxia DU ; Can CHEN ; Cao KEXIN ; Shigui YANG ;
Epidemiology and Health 2024;46(1):e2024075-
OBJECTIVES:
Several countries have successfully eliminated measles, and China is making significant strides toward achieving this goal. This study focused on investigating the patterns of measles infections in Zhejiang Province, China, as well as control measures. The objective was to provide valuable insights that could contribute to the development of nationwide elimination strategies.
METHODS:
We analyzed measles surveillance data from 2005 to 2022 in Zhejiang Province. We utilized a joinpoint regression model to examine trends in measles. Additionally, we employed SaTScan version 9.5 to identify spatial-temporal clusters. Finally, we used an age-period-cohort model to assess the effects of age, period, and cohort.
RESULTS:
The age-standardized incidence rate (ASIR) of measles infection in Zhejiang Province from 2005 to 2022 was 5.24 per 100,000, showing a consistent and significant downward trend with an annual percentage change of -24.93% (p<0.05). After 2020, the ASIR for measles infection fell to below 0.1 per 100,000. The majority of measles cases occurred in individuals either without an immunization history or with an unknown immunization status, representing 41.06% and 41.40% of the cases from 2010 to 2022, respectively. According to data from the National Measles Surveillance System, the annual rate of discarded measles cases from 2009 to 2014, and the annual rate of discarded measles and rubella cases from 2015 to 2022, were both above 2 per 100,000, indicating the high sensitivity of the measles surveillance system.
CONCLUSIONS
The significant reduction in measles incidence from 2005 to 2022 demonstrates substantial progress in Zhejiang Province towards the elimination of measles.
4.Epidemic characteristics of measles and efforts to control measles infections in Zhejiang Province, China
Rui YAN ; Mengya YANG ; Hanqing HE ; Yan FENG ; Yang ZHOU ; Xuewen TANG ; Xuan DENG ; Yao ZHU ; Yuxia DU ; Can CHEN ; Cao KEXIN ; Shigui YANG ;
Epidemiology and Health 2024;46(1):e2024075-
OBJECTIVES:
Several countries have successfully eliminated measles, and China is making significant strides toward achieving this goal. This study focused on investigating the patterns of measles infections in Zhejiang Province, China, as well as control measures. The objective was to provide valuable insights that could contribute to the development of nationwide elimination strategies.
METHODS:
We analyzed measles surveillance data from 2005 to 2022 in Zhejiang Province. We utilized a joinpoint regression model to examine trends in measles. Additionally, we employed SaTScan version 9.5 to identify spatial-temporal clusters. Finally, we used an age-period-cohort model to assess the effects of age, period, and cohort.
RESULTS:
The age-standardized incidence rate (ASIR) of measles infection in Zhejiang Province from 2005 to 2022 was 5.24 per 100,000, showing a consistent and significant downward trend with an annual percentage change of -24.93% (p<0.05). After 2020, the ASIR for measles infection fell to below 0.1 per 100,000. The majority of measles cases occurred in individuals either without an immunization history or with an unknown immunization status, representing 41.06% and 41.40% of the cases from 2010 to 2022, respectively. According to data from the National Measles Surveillance System, the annual rate of discarded measles cases from 2009 to 2014, and the annual rate of discarded measles and rubella cases from 2015 to 2022, were both above 2 per 100,000, indicating the high sensitivity of the measles surveillance system.
CONCLUSIONS
The significant reduction in measles incidence from 2005 to 2022 demonstrates substantial progress in Zhejiang Province towards the elimination of measles.
5.Epidemic characteristics of measles and efforts to control measles infections in Zhejiang Province, China
Rui YAN ; Mengya YANG ; Hanqing HE ; Yan FENG ; Yang ZHOU ; Xuewen TANG ; Xuan DENG ; Yao ZHU ; Yuxia DU ; Can CHEN ; Cao KEXIN ; Shigui YANG ;
Epidemiology and Health 2024;46(1):e2024075-
OBJECTIVES:
Several countries have successfully eliminated measles, and China is making significant strides toward achieving this goal. This study focused on investigating the patterns of measles infections in Zhejiang Province, China, as well as control measures. The objective was to provide valuable insights that could contribute to the development of nationwide elimination strategies.
METHODS:
We analyzed measles surveillance data from 2005 to 2022 in Zhejiang Province. We utilized a joinpoint regression model to examine trends in measles. Additionally, we employed SaTScan version 9.5 to identify spatial-temporal clusters. Finally, we used an age-period-cohort model to assess the effects of age, period, and cohort.
RESULTS:
The age-standardized incidence rate (ASIR) of measles infection in Zhejiang Province from 2005 to 2022 was 5.24 per 100,000, showing a consistent and significant downward trend with an annual percentage change of -24.93% (p<0.05). After 2020, the ASIR for measles infection fell to below 0.1 per 100,000. The majority of measles cases occurred in individuals either without an immunization history or with an unknown immunization status, representing 41.06% and 41.40% of the cases from 2010 to 2022, respectively. According to data from the National Measles Surveillance System, the annual rate of discarded measles cases from 2009 to 2014, and the annual rate of discarded measles and rubella cases from 2015 to 2022, were both above 2 per 100,000, indicating the high sensitivity of the measles surveillance system.
CONCLUSIONS
The significant reduction in measles incidence from 2005 to 2022 demonstrates substantial progress in Zhejiang Province towards the elimination of measles.
6.Epidemic characteristics of measles and efforts to control measles infections in Zhejiang Province, China
Rui YAN ; Mengya YANG ; Hanqing HE ; Yan FENG ; Yang ZHOU ; Xuewen TANG ; Xuan DENG ; Yao ZHU ; Yuxia DU ; Can CHEN ; Cao KEXIN ; Shigui YANG ;
Epidemiology and Health 2024;46(1):e2024075-
OBJECTIVES:
Several countries have successfully eliminated measles, and China is making significant strides toward achieving this goal. This study focused on investigating the patterns of measles infections in Zhejiang Province, China, as well as control measures. The objective was to provide valuable insights that could contribute to the development of nationwide elimination strategies.
METHODS:
We analyzed measles surveillance data from 2005 to 2022 in Zhejiang Province. We utilized a joinpoint regression model to examine trends in measles. Additionally, we employed SaTScan version 9.5 to identify spatial-temporal clusters. Finally, we used an age-period-cohort model to assess the effects of age, period, and cohort.
RESULTS:
The age-standardized incidence rate (ASIR) of measles infection in Zhejiang Province from 2005 to 2022 was 5.24 per 100,000, showing a consistent and significant downward trend with an annual percentage change of -24.93% (p<0.05). After 2020, the ASIR for measles infection fell to below 0.1 per 100,000. The majority of measles cases occurred in individuals either without an immunization history or with an unknown immunization status, representing 41.06% and 41.40% of the cases from 2010 to 2022, respectively. According to data from the National Measles Surveillance System, the annual rate of discarded measles cases from 2009 to 2014, and the annual rate of discarded measles and rubella cases from 2015 to 2022, were both above 2 per 100,000, indicating the high sensitivity of the measles surveillance system.
CONCLUSIONS
The significant reduction in measles incidence from 2005 to 2022 demonstrates substantial progress in Zhejiang Province towards the elimination of measles.
7.Mechanism of Chaenomelis Fructus in treatment of rheumatoid arthritis based on network pharmacology and experimental verification.
Zhi-Hao DUAN ; Can JIN ; Ying DENG ; Jin-Lang LIU ; Jie WANG ; Shi-Gang LI ; You ZHOU
China Journal of Chinese Materia Medica 2023;48(18):4852-4863
The material basis and mechanism of Chaenomelis Fructus in the treatment of rheumatoid arthritis(RA) were explored by network pharmacology, and the potential anti-RA targets of Chaenomelis Fructus were verified by molecular docking and animal experiments. The active components and targets of Chaenomelis Fructus were searched against the Traditional Chinese Medicine System Pharmacology Database and Analysis Platform. GeneCards, DisGeNET, and OMIM were used to obtain RA-related targets. The common targets shared by Chaenomelis Fructus and RA were considered as the potential targets of Chaenomelis Fructus in the treatment of RA. Cytoscape 3.9.0 was employed to establish a "traditional Chinese medicine-active component-common target-disease" network. The protein-protein interaction(PPI) network was established by STRING, and the core genes were visualized by RStudio 4.1.0. DAVID was used for Gene Ontology(GO) annotation and Kyoto Encyclopedia of Genes and Genomes(KEGG) pathway enrichment to predict and visualize the involved signaling pathways. Molecular docking was carried out with the active components screened out as ligands and RA core genes as the targets. Finally, the prediction results were verified by animal experiments. Four main active components of Chaenomelis Fructus were obtained, which corresponded to 137 targets. Chaenomelis Fructus and RA shared 37 common targets. GO annotation yielded 239 terms(P<0.05), and KEGG pathway enrichment analysis screened out 94 signaling pathways(P<0.05), mainly involving interleukin-17(IL-17), tumor necrosis factor, Toll-like receptor, and nuclear factor-kappa B(NF-κB) signaling pathways. Molecular docking results showed that the main active components of Chaenomelis Fructus bound well with the core targets of RA. The results of animal experiments proved that Chaenomelis Fructus can alleviate joint swelling in the mice with RA. The results of ELISA showed that Chaenomelis Fructus lowered the levels of interleukin-6(IL-6) and interleukin-1β(IL-1β). Western blot showed that Chaenomelis Fructus down-regulated the protein level of vascular endothelial growth factor A(VEGFA). Chaenomelis Fructus exerts anti-inflammatory effect and reduces pannus formation by regulating the core targets such as VEGFA, IL-1β, and IL6 in the treatment of RA. The findings of this study provide new ideas for the future treatment of RA with Chaenomelis Fructus.
Animals
;
Mice
;
Network Pharmacology
;
Vascular Endothelial Growth Factor A
;
Molecular Docking Simulation
;
Arthritis, Rheumatoid/genetics*
;
Tumor Necrosis Factor-alpha
;
NF-kappa B
;
Drugs, Chinese Herbal/therapeutic use*
;
Medicine, Chinese Traditional
8.The osteoprotective effects and mechanisms of RA model mice by total saponins of Chaenomeles speciosa
Ying DENG ; Can JIN ; Zhihao DUAN ; Xiaoli ZHANG ; Shigang LI
China Pharmacy 2023;34(9):1042-1047
OBJECTIVE To study the osteoprotective effects and possible mechanism of total saponins of Chaenomeles speciosa on rheumatoid arthritis (RA) model mice, and to provide reference for further development of anti-RA drugs. METHODS Seventy male DBA/1 mice were randomly divided into normal group, model group, low-dose and high-dose groups of C. speciose total saponins (60, 240 mg/kg), Tripterygium wilfordii polyglycoside tablets group (positive control, 30 mg/kg), with 14 mice in each group. In addition to the normal group, the other groups of mice were induced by glucose-6-phosphate isomerase mixed polypeptide to prepare RA model. The body weight, rear toes thickness and arthritis scores of each group were recorded; the synovial inflammation, bone and cartilage destruction of ankle joint tissues were observed by hematoxylin-eosin staining, tartrate- resistant acid phosphatase staining and safranin O-fast green staining; the contents of interleukin-6 (IL-6) in serum and tumor necrosis factor α (TNF-α), IL-4 and IL-10 in ankle joint tissues were detected by ELISA; the expression levels of receptor activator of nuclear factor-κB ligand (RANKL), receptor activator of nuclear factor-κB (RANK), osteoprotegerin (OPG), tumor necrosis factor receptor-associated protein 6 (TRAF6) and nuclear factor of activated T cells 1 (NFATC1) protein in ankle joint tissues were detected by Western blot assay. RESULTS At the end of administration, compared with normal group, the body mass of mice in the model group was significantly reduced (P<0.05), and the arthritis score and the thickness of the left and right rear toes were significantly increased (P<0.05); the ankle joint tissues of mice in the model group showed significant synovial proliferation and inflammatory infiltration, the number of osteoclasts increased significantly and significant destruction of cartilage tissue. The content of IL-6 in serum, the content of TNF-α, the protein expression levels of RANKL, RANK, TRAF6 and NFATC1 in the ankle joint tissues were increased significantly (P<0.05), while the contents of IL- 4 and IL-10, the protein expression level of OPG in the ankle joint tissues were decreased significantly (P<0.05). Compared with model group, above pathomorphological changes and the content/level of indicators of mice in each administration group were significantly improved (P<0.05). CONCLUSIONS Total saponins of C. speciosa may exert osteoprotective effects on RA model mice, the mechanism of which may be associated with reducing the contents of IL-6 and TNF-α, increasing the contents of IL-4 and IL-10, inhibiting the activation of RANKL/RANK/OPG signal pathway, thus inhibiting the proliferation of osteoclasts and promoting the repair of cartilage and bone tissue.
9.Criminological Characteristics and Criminal Responsibility Capacity of Offenders with Alcoholism
Chun-yan LIU ; Qi LI ; Ning YANG ; Xi DENG ; Can-can CAO ; Bo HAO ; Lu LIU ; Hu ZHAO
Journal of Sun Yat-sen University(Medical Sciences) 2023;44(3):386-394
ObjectiveTo analyze the criminal behavior characteristics of alcohol-related crime offenders and explore the relationship between criminal behavior characteristics and criminal responsibility capacity. MethodsBasic information, alcohol use information, psychiatric symptoms before and after the crime, criminological behavioral characteristics and conclusion of judicial evaluation were collected. ResultsThe drinking history of the chronic alcoholism group 25.0 (13.3~30.0) years was significantly longer than that of the acute alcoholism group 1.2 (0~14.3) years. In the chronic alcoholism group, 85.0% drank alcohol at least once a day, 52.5% had morning or bedtime drinking habits, and 92.5% drank mainly alone. Violent crimes accounted for 57.6%. Delirium existed in 52.5% of the chronic alcoholics' mental state at the time of the crime, and 84.6% of the acute alcoholics' mental state was hazy. In the chronic alcoholism group, 42.5% committed the crime with pathological motive, and in the acute alcoholism group, 69.2% committed the crime with realistic motive. Acute alcoholism group 96.2% were assessed as complete criminal responsibility capacity, and chronic alcoholism group 50.0% were assessed as complete criminal responsibility capacity. ConclusionCompared with acute alcoholism offenders, chronic alcoholics had a longer drinking duration, more frequency drinking, and obvious morning drinking or bedtime drinking habits. The nature of alcoholism crime cases was mostly violent. Compared with the chronic alcoholism group, the acute alcoholism group had highly selective motives for committing crimes and were mostly rated as complete criminally responsibility.
10.A descriptive analysis on hypertension in adult twins in China.
Yu Tong WANG ; Wei Hua CAO ; Jun LYU ; Can Qing YU ; Sheng Feng WANG ; Tao HUANG ; Dian Jian Yi SUN ; Chun Xiao LIAO ; Yuan Jie PANG ; Zeng Chang PANG ; Min YU ; Hua WANG ; Xian Ping WU ; Zhong DONG ; Fan WU ; Guo Hong JIANG ; Xiao Jie WANG ; Yu LIU ; Jian DENG ; Lin LU ; Wen Jing GAO ; Li Ming LI
Chinese Journal of Epidemiology 2023;44(4):536-543
Objective: To describe the distribution characteristics of hypertension among adult twins in the Chinese National Twin Registry (CNTR) and to provide clues for exploring the role of genetic and environmental factors on hypertension. Methods: A total of 69 220 (34 610 pairs) of twins aged 18 and above with hypertension information were selected from CNTR registered from 2010 to 2018. Random effect models were used to describe the population and regional distribution of hypertension in twins. To estimate the heritability, the concordance rates of hypertension were calculated and compared between monozygotic twins (MZ) and dizygotic twins (DZ). Results: The age of all participants was (34.1±12.4) years. The overall self-reported prevalence of hypertension was 3.8%(2 610/69 220). Twin pairs who were older, living in urban areas, married, overweight or obese, current smokers or ex-smokers, and current drinkers or abstainers had a higher self-reported prevalence of hypertension (P<0.05). Analysis within the same-sex twin pairs found that the concordance rate of hypertension was 43.2% in MZ and 27.0% in DZ, and the difference was statistically significant (P<0.001). The heritability of hypertension was 22.1% (95%CI: 16.3%- 28.0%). Stratified by gender, age, and region, the concordance rate of hypertension in MZ was still higher than that in DZ. The heritability of hypertension was higher in female participants. Conclusions: There were differences in the distribution of hypertension among twins with different demographic and regional characteristics. It is indicated that genetic factors play a crucial role in hypertension in different genders, ages, and regions, while the magnitude of genetic effects may vary.
Adult
;
Female
;
Humans
;
Male
;
Alcohol Drinking
;
Diseases in Twins/genetics*
;
Hypertension/genetics*
;
Twins, Dizygotic/genetics*
;
Twins, Monozygotic/genetics*

Result Analysis
Print
Save
E-mail