1.Progress in research of rash and fever syndrome surveillance and early warning
Fan LIN ; Yuqing GUO ; Yanlin WU ; Kaiming LI ; Yaming ZHENG ; Liping WANG
Chinese Journal of Epidemiology 2024;45(3):455-463
Objective:To introduce the progress in research of rash and fever syndrome (RFS) surveillance and early warning both at home and abroad, and provide reference for surveillance and prevention of RFS in China.Methods:The keywords "fever" "rash" and "surveillance" and others were used for a literature retrieval by using China National Knowledge Infrastructure, Wanfang Data Knowledge Service Platform, PubMed and Web of Science. The languages of literatures were limited in Chinese and English. The key information of the literatures were collected and analyzed with Excel.Results:A total of 36 study papers (21 in Chinese and 15 in English) were included. The studies mainly focused on the pathogen surveillance of RFS ( n=19). The pathogens included measles virus, varicella-zoster virus, rubella virus, enterovirus, human B19 virus, dengue virus, streptococcus group A, Salmonella typhi and Salmonella paratyphoid,human herpesvirus, mumps virus and adenovirus. Eight studies were about the surveillance in major events, such as sport game, World Expo and religious gathering, or sudden natural disasters, such as earthquake and tropical storm, during 2010-2015. Eight studies focused on case or epidemic surveillance, most of which were studies from other counties. The surveillance sites were medical institutions. RFS was diagnosed according to the International Classification of Diseases, 9 th (ICD-9) and symptoms descripted in chief-complaint. Only one study in Mongolia conducted RFS epidemic prediction. The analysis methods of 36 papers included simple descriptive analysis, time-based early warning models (such as regression analysis, fixed threshold method, Hugh Hart control chart method and cumulative sum control chart method) and time series analysis method. Conclusions:In the future, RFS surveillance system should cover both known pathogens and emerging pathogens. Automatic surveillance using information capture and intelligent modelling can be applied to improve the sensitivity and specificity of RFS surveillance and early warning.
2.Research on the status and development of medical and public health informatization in China, from the perspective of medical and preventive integration
Yanlin WU ; Kaiming LI ; Yuqing GUO ; Fan LIN ; Yanfei LI ; Liping WANG
Chinese Journal of Epidemiology 2024;45(6):892-898
Medical and preventive integration effectively bridges the gap between "treating diseases" and "preventing diseases". Over the years, medical and preventive integration research has focused on chronic and chronic infectious diseases, with insufficient attention to acute ones. Confronting newly emerging infectious diseases establishing continuous monitoring, early warning, emergency response, and appropriate treatment will be a key focus for developing and reforming the healthcare system. Interoperability and sharing of medical and health data are essential prerequisites for bridging the gap between medical treatment and disease prevention and are also important for promoting intelligent surveillance and early warning of infectious diseases. Informatization is necessary to achieve efficient collaboration between medical treatment and disease prevention. Reviewing the development of medical and health informatization in the United States and Europe, this paper compares and discusses the problems and challenges in developing medical and health informatization in China. The aim is to provide references for the development of medical and health informatization and the innovation of medical and preventive integration mechanisms in the country.
3.Comparison of Character,Turgidity and Chemical Composition of Prunellae Spica Seeds,Chia Seeds and Basil Seeds
Shaoru WU ; Weihong FENG ; Lixin YANG ; Kaiming CHEN ; Liangmian CHEN ; Xiaoqian LIU ; Huimin GAO ; Zhimin WANG
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(2):18-26
ObjectiveIn order to explore the utilization value of the seeds dropped in the harvesting, processing, storage and transportation of Prunellae Spica, the character, turgidity and chemical composition of the seeds were analyzed and compared with those of the commercially available varieties, such as chia seeds and basil seeds. MethodCharacter was observed directly. The turgidity was determined according to the method of general rule 2101 of Chinese Pharmacopoeia (part Ⅳ, the 2020 edition). The contents of six phenolic acids (danshensu, protocatechuic acid, protocatechuic aldehyde, caffeic acid, salviaflaside and rosmarinic acid) were determined by ultra performance liquid chromatography (UPLC), acetonitrile (A)-0.1% formic acid aqueous solution (B) was used as mobile phase for gradient elution (0-7 min, 2%-8%A; 7-13 min, 8%A; 13-14 min, 8%-17%A; 14-30 min, 17%A), the detection wavelength was at 280 nm. The liposoluble components were extracted by n-hexane and identified by gas chromatography-mass spectrometry (GC-MS), and the contents of five fatty acids, namely palmitic acid, oleic acid, stearic acid, linolic acid and α-linolenic acid, were determined on a DB-35MS capillary column (0.25 mm×60.0 m, 0.25 µm), the injection temperature was 250 ℃, the carrier gas was high-purity helium with a flow rate of 1.0 mL·min-1 and the splitting ratio of 50∶1. The volatile oil was extracted by steam distillation method and its components were identified by GC-MS on a WM-5MS capillary column (0.25 mm×30.0 m, 0.25 µm) with the injection temperature of 250 ℃, the flow rate of 1.0 mL·min-1 and the splitting ratio of 10∶1. ResultPrunellae Spica seeds were slightly smaller than chia seeds and basil seeds, and their color of seed coat was obviously different. Prunellae Spica seeds had strong water absorption and swelling characteristics, and the turgidity was 17.4 mL·g-1, which was lower than that of chia seeds (25.2 mL·g-1) and basil seeds (35.6 mL·g-1). Prunellae Spica seeds were rich in phenolic and fatty acids, while the content of volatile oil was very low. The main phenolic acids were salviaflaside and rosmarinic acid, with the contents of 0.579% and 0.392%, respectively. The total content of five fatty acids in n-hexane extract was 90.1%, and total content of unsaturated fatty acids was 80.6%, among which content of α-linolenic acid was 50.0%, which was slightly lower than 57.2% of chia seeds and similar to 50.0% of basil seeds. ConclusionPrunellae Spica seeds have good turgidity, rich in phenolic acids and unsaturated fatty acids, and especially with high amount of α-linolenic acid. It is worthy of being developed as functional food to realize comprehensive utilization of the waste resources of Prunellae Spica.
4.Vitamin D receptor (VDR) mediates the quiescence of activated hepatic stellate cells (aHSCs) by regulating M2 macrophage exosomal smooth muscle cell-associated protein 5 (SMAP-5).
Xuwentai LIU ; Yue WU ; Yanyi LI ; Kaiming LI ; Siyuan HOU ; Ming DING ; Jingmin TAN ; Zijing ZHU ; Yingqi TANG ; Yuming LIU ; Qianhui SUN ; Cong WANG ; Can ZHANG
Journal of Zhejiang University. Science. B 2023;24(3):248-261
An effective therapeutic regimen for hepatic fibrosis requires a deep understanding of the pathogenesis mechanism. Hepatic fibrosis is characterized by activated hepatic stellate cells (aHSCs) with an excessive production of extracellular matrix. Although promoted activation of HSCs by M2 macrophages has been demonstrated, the molecular mechanism involved remains ambiguous. Herein, we propose that the vitamin D receptor (VDR) involved in macrophage polarization may regulate the communication between macrophages and HSCs by changing the functions of exosomes. We confirm that activating the VDR can inhibit the effect of M2 macrophages on HSC activation. The exosomes derived from M2 macrophages can promote HSC activation, while stimulating VDR alters the protein profiles and reverses their roles in M2 macrophage exosomes. Smooth muscle cell-associated protein 5 (SMAP-5) was found to be the key effector protein in promoting HSC activation by regulating autophagy flux. Building on these results, we show that a combined treatment of a VDR agonist and a macrophage-targeted exosomal secretion inhibitor achieves an excellent anti-hepatic fibrosis effect. In this study, we aim to elucidate the association between VDR and macrophages in HSC activation. The results contribute to our understanding of the pathogenesis mechanism of hepatic fibrosis, and provide potential therapeutic targets for its treatment.
Humans
;
Hepatic Stellate Cells/pathology*
;
Receptors, Calcitriol
;
Liver Cirrhosis/pathology*
;
Macrophages/metabolism*
5.Psoriatic Serum Induce an Abnormal Inflammatory Phenotype and a Decreased Immunosuppressive Function of Mesenchymal Stem Cells
Fangdi WANG ; Ruixia HOU ; Junqin LI ; Xincheng ZHAO ; Qiang WANG ; Kaiming ZHANG ; Xinhua LI
International Journal of Stem Cells 2022;15(2):155-163
Background and Objectives:
Mesenchymal stem cells (MSCs) have immunomodulatory function and participate in the pathogenesis of many immunoregulation-related diseases, including psoriasis. Previously, we found that MSCs from psoriatic lesions overexpress the proinflammatory microRNA, miR-155 and exhibit a decreased immunosuppressive capacity. But the origin of these aberrant characteristics is still not clear. To investigate whether inflammatory cytokines in serum and peripheral blood mononuclear cells (PBMCs) from psoriatic patients can regulate the expression patterns of immunoregulation-related cytokines and the immunoregulation function of MSCs.
Methods:
and Results: Normal dermal mesenchymal stem cells (nDMSCs) were treated with serum or PBMCs derived from patients with psoriasis or healthy donors. Expression of miR-155 and immunoregulation-related genes in each MSCs were measured using real-time PCR or western-blot. Meanwhile, the immunosuppressive capacity of DMSCs was evaluated by its inhibitory ability on proliferation of activated PBMCs. Compared to control serum, psoriatic serum significantly increased the expression levels of miR-155 (27.19±2.40 vs. 3.51±1.19, p<0.001), while decreased TAB2 expression (0.28±0.04 vs. 0.72±0.20, p<0.01) in DMSCs. Expression levels of immunoregulation-related genes such as PGE2, IL-10, and TLR4 were also markedly down-regulated following the psoriatic serum treatment. Those DMSCs treated with healthy serum could inhibit PBMC proliferation, while those psoriatic serum-treated DMSCs could not inhibit PBMC proliferation effectively.
Conclusions
Psoriatic serum up-regulate the expression of miR-155, down-regulate the expression of immunoregulation- related genes (PGE2, IL-10, and TLR4) in DMSCs, and along with the inhibition of the immunosuppressive function of MSCs.
6.Dysregulated Dermal Mesenchymal Stem Cell Proliferation and Differentiation Interfered by Glucose Metabolism in Psoriasis
Xincheng ZHAO ; Jianxiao XING ; Junqin LI ; Ruixia HOU ; Xuping NIU ; Ruifeng LIU ; Juanjuan JIAO ; Xiaohong YANG ; Juan LI ; Jiannan LIANG ; Ling ZHOU ; Qiang WANG ; Wenjuan CHANG ; Guohua YIN ; Xinhua LI ; Kaiming ZHANG
International Journal of Stem Cells 2021;14(1):85-93
Background and Objectives:
Psoriasis is a chronic inflammatory skin disease, which the mechanisms behind its initiation and development are related to many factors. DMSCs (dermal mesenchymal stem cells) represent an important member of the skin microenvironment and play an important role in the surrounding environment and in neighbouring cells, but they are also affected by the microenvironment. We studied the glucose metabolism of DMSCs in psoriasis patients and a control group to reveal the relationship among glucose metabolism, cell proliferation activity,and VEC (vascular endothelial cell) differentiation in vitro, we demonstrated the biological activity and molecular mechanisms of DMSCs in psoriasis.
Methods:
and Results: We found that the OCR of DMSCs in psoriatic lesions was higher than that in the control group, and mRNA of GLUT1 and HK2 were up-regulated compared with the control group. The proliferative activity of DMSCs in psoriasis was reduced at an early stage, and mRNA involved in proliferation, JUNB and FOS were expressed at lower levels than those in the control group. The number of blood vessels in psoriatic lesions was significantly higher than that in the control group (p<0.05), which the mRNA of VEC differentiation, CXCL12, CXCR7, HEYL and RGS5 tended to be increased in psoriatic lesions compared to the control group, in addition to Notch3.
Conclusions
We speculated that DMSCs affected local psoriatic blood vessels through glucose metabolism, and the differentiation of VECs, which resulted in the pathophysiological process of psoriasis.
7.Postpartum depression: association with genetic polymorphisms of noradrenaline metabolic enzymes and the risk factors.
Jiahui MA ; Zhengdong HUANG ; Saiying WANG ; Shanshan ZHENG ; Kaiming DUAN
Journal of Southern Medical University 2019;39(1):57-62
OBJECTIVE:
To investigate the association of genetic polymorphisms of norepinephrine metabolizing enzymes with postpartum depression and analyze the risk factors for postpartum depression in women following cesarean section.
METHODS:
A total of 591 Chinese woman of Han Nationality undergoing caesarean section were enrolled in this study. The diagnosis of postpartum depression was established for an Edinburgh Postnatal Depression Scale (EPDS) score ≥9. For all the women without antepartum depression, the genotypes of catechol-O-methyltransferase (COMT; at 5 sites including rs2020917 and rs737865) and monoamine oxidase A (rs6323) were determined using Sequenom Mass Array single nucleotide polymorphism (SNP) analysis. We analyzed the contribution of the genetic factors (SNPs, linkage disequilibrium and haplotype) to postpartum depression and performed logistic regression analysis to identify all the potential risk factors for postpartum depression and define the interactions between the genetic and environmental factors.
RESULTS:
The incidence of postpartum depression was 18.1% in this cohort. Univariate analysis suggested that COMT polymorphism at rs2020917 (TT genotype) and rs737865 (GG genotype) were significantly correlated with the occurrence of postpartum depression ( < 0.05). Logistic regression analysis showed that COMT polymorphism at rs2020917 (TT genotype) and rs737865 (GG genotype), severe stress during pregnancy, and domestic violence were the risk factors for postpartum depression ( < 0.05); no obvious interaction was found between the genetic polymorphisms and the environmental factors in the occurrence of postpartum depression.
CONCLUSIONS
The rs2020917TT and rs737865GG genotypes of COMT, stress in pregnancy, and domestic violence are the risk factors for postpartum depression.
Catechol O-Methyltransferase
;
genetics
;
Cesarean Section
;
adverse effects
;
Depression, Postpartum
;
diagnosis
;
enzymology
;
genetics
;
Domestic Violence
;
psychology
;
Female
;
Gene-Environment Interaction
;
Genotype
;
Haplotypes
;
Humans
;
Linkage Disequilibrium
;
Monoamine Oxidase
;
genetics
;
Norepinephrine
;
metabolism
;
Polymorphism, Single Nucleotide
;
Postoperative Complications
;
diagnosis
;
enzymology
;
genetics
;
Pregnancy
;
Pregnancy Complications
;
etiology
;
psychology
;
Risk Factors
;
Stress, Psychological
8.Risk factors of perioperative cardiac events in lung cancer patients with high-risk coronary heart disease undergoing pulmonary lobectomy
Chuanxi WANG ; Tianyang DAI ; Kaiming HE ; Jiangtao PU ; Peiyuan ZENG ; Zhi HU ; Fei HAN
Journal of Clinical Medicine in Practice 2019;23(7):44-49
Objective To explore the incidence and risk factors of perioperative major adverse cardiac events (MACE) in lung cancer patients with high-risk coronary heart disease undergoing pulmonary lobectomy. Methods The clinical dataof 1 647 high-risk coronary heart disease patients diagnosed with lung cancer undergoing lobectomy in our hospital was analyzed, and performed Framingham scoring. High-risk patients (score> 20%) were included in the study, and the periopertive major adverse cardiac events was defined as primary endpoint. The risk factors of MACE were analyzed. Results Perioperative MACE occurred in 26. 4% of lung cancer patients with high-risk coronary heart disease undergoing lobectomy. Multivariate analysis demonstrated that hypertension, high density lipoprotein (HDL-C), diabetes, age, coronary angiography, stroke, smoking index in descending sequence were independent risk factors of perioperative cardiac events in lung cancer patients. While shorter operative time, coronary angiography and clinical intervention was protective factor. Conclusion Lung cancer patients with high-risk coronary heart disease undergoing lobectomy has higher risk of perioperative MACE. Preoperative sufficient cardiac risk scores, coronary angiography andclinical interventioncan reduce the incidence of perioperative MACE in lung cancer patients with high-risk coronary heart disease.
9.Risk factors of perioperative cardiac events in lung cancer patients with high-risk coronary heart disease undergoing pulmonary lobectomy
Chuanxi WANG ; Tianyang DAI ; Kaiming HE ; Jiangtao PU ; Peiyuan ZENG ; Zhi HU ; Fei HAN
Journal of Clinical Medicine in Practice 2019;23(7):44-49
Objective To explore the incidence and risk factors of perioperative major adverse cardiac events (MACE) in lung cancer patients with high-risk coronary heart disease undergoing pulmonary lobectomy. Methods The clinical dataof 1 647 high-risk coronary heart disease patients diagnosed with lung cancer undergoing lobectomy in our hospital was analyzed, and performed Framingham scoring. High-risk patients (score> 20%) were included in the study, and the periopertive major adverse cardiac events was defined as primary endpoint. The risk factors of MACE were analyzed. Results Perioperative MACE occurred in 26. 4% of lung cancer patients with high-risk coronary heart disease undergoing lobectomy. Multivariate analysis demonstrated that hypertension, high density lipoprotein (HDL-C), diabetes, age, coronary angiography, stroke, smoking index in descending sequence were independent risk factors of perioperative cardiac events in lung cancer patients. While shorter operative time, coronary angiography and clinical intervention was protective factor. Conclusion Lung cancer patients with high-risk coronary heart disease undergoing lobectomy has higher risk of perioperative MACE. Preoperative sufficient cardiac risk scores, coronary angiography andclinical interventioncan reduce the incidence of perioperative MACE in lung cancer patients with high-risk coronary heart disease.
10.Correlation between kynurenine metabolites and postpartum depression.
Saiying WANG ; Chengxuan QUAN ; Yingjie TAN ; Shaohua WEN ; Jitao ZHANG ; Kaiming DUAN
Journal of Central South University(Medical Sciences) 2018;43(7):725-731
To explore the correlation between kynurenine (KYN) metabolites and postpartum depression (PPD), and to provide new possible explanation for the pathogenesis of postpartum depression (PPD).
Methods: A total of 726 Chinese women, who received cesarean section, were enrolled in this study. PPD was diagnosed with an Edinburgh Postnatal Depression Scale (EPDS) score ≥13. Twenty-four women with PPD and 48 matched women without PPD were randomly selected. The perinatal serum concentrations of KYN, quinolinic acid (QUIN) and kynurenic acid (KYNA) were measured. Subsequently, the puerperants were compared for the differences in the serum concentrations of KYN, QUIN and KYNA at the end of term, day 1 and day 3 after cesarean section, respectively.
Results: The incidence of PPD was 7.99%. Of clinical characteristics, pressure during pregnancy was significantly different between subjects with or without PPD (P<0.01). Patients with PPD showed significantly increased serum KYN concentration (P<0.05) at the end of term, increased serum QUIN concentration (P<0.05) and decreased KYNA concentration (P<0.05) on the third day after cesarean section as compared with the control women. Furthermore, the KYNA/QUIN ratio was significantly higher in patients with PPD as compared to the control women on the third day after cesarean section (P<0.01).
Conclusion: The contribution of alterations in plasma levels of KYN, QUIN and KYNA is closely related with the incidence of PPD, and correction of KYNA/QUIN ratio could be a new strategy for the prevention and treatment of postpartum depressive symptoms.
Biomarkers
;
blood
;
Cesarean Section
;
psychology
;
China
;
epidemiology
;
Depression, Postpartum
;
blood
;
epidemiology
;
Female
;
Humans
;
Incidence
;
Kynurenic Acid
;
blood
;
Kynurenine
;
blood
;
Pregnancy
;
Quinolinic Acid
;
blood

Result Analysis
Print
Save
E-mail