1.A nationwide web-based automated system for early outbreak detection and rapid response in China
Yang Weizhong ; Li Zhongjie ; Lan Yajia ; Wang Jinfeng ; Ma Jiaqi ; Jin Lianmei ; Sun Qiao ; Lv Wei ; Lai Shengjie ; Liao Yilan ; Hu Wenbiao
Western Pacific Surveillance and Response 2011;2(1):10-15
Timely reporting, effective analyses and rapid distribution of surveillance data can assist in detecting the aberration of disease occurrence and further facilitate a timely response. In China, a new nationwide web-based automated system for outbreak detection and rapid response was developed in 2008. The China Infectious Disease Automated-alert and Response System (CIDARS) was developed by the Chinese Center for Disease Control and Prevention based on the surveillance data from the existing electronic National Notifiable Infectious Diseases Reporting Information System (NIDRIS) started in 2004. NIDRIS greatly improved the timeliness and completeness of data reporting with real time reporting information via the Internet. CIDARS further facilitates the data analysis, aberration detection, signal dissemination, signal response and information communication needed by public health departments across the country. In CIDARS, three aberration detection methods are used to detect the unusual occurrence of 28 notifiable infectious diseases at the county level and to transmit that information either in real-time or on a daily basis. The Internet, computers and mobile phones are used to accomplish rapid signal generation and dissemination, timely reporting and reviewing of the signal response results. CIDARS has been used nationwide since 2008; all Centers for Disease Control and Prevention (CDC) in China at the county, prefecture, provincial and national levels are involved in the system. It assists with early outbreak detection at the local level and prompts reporting of unusual disease occurrences or potential outbreaks to CDCs throughout the country.
2.Effects of nurse-led stress inoculation training on fear of self-injecting and self-testing in elderly type 2 diabetic patients
Wei JIN ; Huanhuan LIU ; Yilan FU ; Qiulian LI ; Guoli ZHONG ; Changli LIANG
Chinese Journal of Practical Nursing 2022;38(7):513-518
Objective:To investigate the effect of nurse-led stress inoculation training on fear of self-injecting and self-testing and self-management behaviors in elderly type 2 diabetic patients and provide reference for diabetes nursing care.Methods:A total of 110 elderly type 2 diabetic patients of Department of Endocrinology of Hainan People′s Hospital from January 2018 to January 2020 were divided into experimental group and control group according to odd and even numbers, with 55 patients in each group. The control group received routine nursing care, while the experimental group implemented nurse-led stress inoculation training for 4 weeks. The intervention effect was assessed by Diabetes Fear of Injecting and Self-testing Ouestionnaire (D-FISQ) and Diabetes self-management behaviors among older (DSMB-O), respectively.Results:In the study, one patient in the experimental group fell off, and finally included 54 cases in the experimental group and 55 cases in the control group. After intervention, the fear of self-injecting scores, fear of self-testing scores, and total D-FISQ scores were 13.15 ± 3.02, 15.67 ± 3.59 and 28.81 ± 5.08 in the experimental group, significantly lower than those in the control group (15.25 ± 3.18, 17.56 ± 3.92 and 32.82 ± 4.89), the difference was statistically significant ( t=3.55, 2.63, 4.19, P<0.05). Active exercises, current medication, blood glucose monitoring, dealing with problem, active response, reducing risks scores and total DSMB-O scores were 2.39 ± 0.49, 2.39 ± 0.49, 2.20 ± 0.81, 4.41 ± 0.92, 4.70 ± 1.13, 5.06 ± 0.79 and 25.28 ± 2.57 in the experimental group, significantly higher than those in the control group (3.95 ± 0.85, 2.11 ± 0.85, 1.51 ± 0.50, 3.95 ± 0.78, 4.13 ± 1.43, 4.38 ± 1.16 and 22.09 ± 2.24), the difference was statistically significant ( t values were 2.10-6.90, P<0.05). Conclusions:Nurse-led stress inoculation training can effectively alleviate fear of self-injecting and self-testing and promote self-management behaviors of elderly patients with type 2 diabetes.
3.Effect of FTY-720 on Pulmonary Fibrosis in Mice via the TGF-β1Signaling Pathway and Autophagy
Yuying JIN ; Weidong LIU ; Ge GAO ; Yilan SONG ; Hanye LIU ; Liangchang LI ; Jiaxu ZHOU ; Guanghai YAN ; Hong CUI
Biomolecules & Therapeutics 2023;31(4):434-445
We investigated whether FTY-720 might have an effect on bleomycin-induced pulmonary fibrosis through inhibiting TGF-β1 pathway, and up-regulating autophagy. The pulmonary fibrosis was induced by bleomycin. FTY-720 (1 mg/kg) drug was intraperitoneally injected into mice. Histological changes and inflammatory factors were observed, and EMT and autophagy protein markers were studied by immunohistochemistry and immunofluorescence. The effects of bleomycin on MLE-12 cells were detected by MTT assay and flow cytometry, and the related molecular mechanisms were studied by Western Blot. FTY-720 considerably attenuated bleomycin-induced disorganization of alveolar tissue, extracellular collagen deposition, and α-SMA and E-cadherin levels in mice. The levels of IL-1β, TNF-α, and IL-6 cytokines were attenuated in bronchoalveolar lavage fluid, as well as protein content and leukocyte count. COL1A1 and MMP9 protein expressions in lung tissue were significantly reduced. Additionally, FTY-720 treatment effectively inhibited the expressions of key proteins in TGF-β1/TAK1/P38MAPK pathway and regulated autophagy proteins. Similar results were additionally found in cellular assays with mouse alveolar epithelial cells. Our study provides proof for a new mechanism for FTY-720 to suppress pulmonary fibrosis. FTY-720 is also a target for treating pulmonary fibrosis.
4. The hypoglycemic effect of eugenol on type 2 diabetic mice and regulation of signaling transduction pathway of glucose and lipid metabolism in liver
Jin-Shan ZHANG ; Yan LIU ; Li-Hui ZHANG ; Haiyan QUAN ; Guo-Fan JIN
Chinese Pharmacological Bulletin 2022;38(12):1875-1881
Aim To study the effects of eugenol on hypoglycemic effect and hepatic glucose and lipid metabolism in type 2 diabetic mice, and to explore the possible mechanism. Methods The model of type 2 diabetes induced by long term high-fat diet was divided into four groups. The blood glucose and body weight of each group were measured once a week. After six weeks, the liver tissues of mice in each group were dissected and the liver mass and body mass of mice were weighed. Liver index, lipid metabolism and liver function were measured. Oral glucose tolerance test was performed. The levels of blood glucose, insulin, triglyceride, cholesterol, resistin, leptin, auxin, glucagon and plasminogen activator inhibitor-1 in serum were measured. He staining was used to observe the pathological changes of liver tissues. The expressions of SHP, pfoxo1, pCREB, PEPCK and G6Pase proteins in liver were detected by Western blot. Results Compared with HFD group, E40 group had lower body weight, smaller liver volume and healthy dark red. Compared with HFD group, E40 group decreased liver index, lipid metabolism and liver function. OGTT test showed that glucose tolerance was enhanced and the area under the curve was decreased in E40 group compared with HFD group. The levels of blood glucose, insulin, triglyceride, resistin, leptin, glucagon and plasminogen activator inhibitor-1 in E40 group were lower than those in HFD group. He staining showed that hepatocytes in HFD group were larger and accompanied with bullous steatosis than those in RD group. Hepatocyte steatosis and liver pathological state were significantly improved in E40 group. The results of Western blot showed that compared with HFD group, the expression of SHP, pfoxo1 and pCREB protein in E40 group was up-regulated, and the expression of PEPCK and G6Pase protein was down-regulated. Conclusions Eugenol can regulate the SHP/pFOXO1/PCREB/PEPCK/G6Pase signaling pathway, regulate glucose and lipid metabolism, inhibit insulin resistance, improve blood glucose level and glucose and lipid metabolism disorders in type 2 diabetes mellitus.
5.A Retrospective Study on the Characteristics of Traditional Chinese Medical Syndromes in 3088 Cases of Atherosclerotic Cerebral Infarction
Yilan CAO ; Haitong WAN ; Jin HAN ; Bin XU ; Huifen ZHOU ; Li YU ; Peng ZHOU ; Jiehong YANG ; Yu HE
Journal of Traditional Chinese Medicine 2023;64(21):2216-2223
ObjectiveTo investigate the characteristics of traditional Chinese medicine syndrome and the evolution of pathogenesis in different stages of atherosclerotic thrombotic cerebral infarction (ATCI). MethodsClinical data of 3088 ATCI patients from 8 hospitals in 6 provinces and cities were collected from the hospital information system during January 1, 2015 to December 31, 2019. After staging and counting clinical symptoms, common factors were extracted using the principal component analysis method in factor analysis. Cluster analysis was then carried out on the basis of the factor analysis. The results of the combination of the evidence element identification, cluster analysis and expert discussion were used to discuss the evidence of the different disease stages of atherosclerotic cerebral infarction. ResultsOf the 3088 ATCI patients included, 2290 cases were in the acute phase and 798 in the non-acute phase. Excluding the main symptoms of ischaemic stroke, such as numbness and weakness of limbs, unfavourable movement, unfavourable speech and dizziness, we identified 84 indicators with a frequency ≥5% of the four diagnostic information variables. Of these, 36 indicators were observed in the acute phase and 35 in the non-acute phase. Factor analysis extracted 14 common factors from each phase. We selected factors with a loading coefficient >0.3 for evidence determination. These 14 groups of common factors were used as variables for clustering. After clustering, the acute, non-acute phase were each divided into 5 categories. Based on a combination of clinical practice and expert opinion, the symptoms identified in the acute period were syndrome of deficiency of both qi and yin, syndrome of blockade of wind-phlegm-static blood (36.07%), syndrome of qi deficiency and blood stasis (20.74%), syndrome of upward disturbance of wind-fire (15.15%), syndrome of stirring wind due to yin deficiency (9.43%), and syndrome of spleen deficiency and liver hyperactivity (3.80%). In the non-acute phase, the symptoms were qi and yin deficiency with syndrome of qi stagnation and blood stasis (45.49%), syndrome of deficiency of both qi and yin (20.05%), syndrome of qi stagnation and blood stasis (16.42%), spleen-kidney deficiency syndrome (8.52%), and syndrome of hyperactivity of liver yang (4.89%). ConclusionThe acute phase of AICI is mainly characterized by blood stasis, fire, internal wind, hyperactivity of yang, qi deficiency and yin deficiency, while the non-acute phase is characterized by yin deficiency, qi deficiency, blood stasis and qi stagnation. The main pathomechanism of ATCI involves deficiency of qi and yin, as well as obstruction of the channels by phlegm and blood stasis, and the fundamental pathomechanism is deficiency of qi and yin.
6.Improvement of Transdermal Delivery of Aciclovir Aliphatic Ester Prodrugs by Using Supersaturated System
Ye ZHOU ; Qin ZHANG ; Yue GU ; Yilan JIN ; Xiaole XU ; Yong CHEN
China Pharmacy 2021;32(16):1975-1981
OBJECTIVE:To prepare supersaturated system of lip ophilic aci clovir(ACV)prodrug,and to increase the cutaneous bioavailability of ACV. METHODS :Three prodrugs of ACV were synthesized by anhydride acylation ,i.e. aciclovir acetate (ACV-Ace),butyrate(ACV-But)and hexanoate (ACV-Hex). The structures of ACV and three ACV prodrugs were confirmed by 1H-NMR and HRESI-MS ;the concentrations of ACV and three ACV prodrugs were determined by UPLC-triple quadrupole tandem mass spectrometry ,and saturated solubility of them in different volume fractions of propylene glycol-water solution was calculated. The compound with the greatest potential of form supersaturated system was screened out. The supersaturated system of that compound was prepared by co-solvent method. The effect of hydroxypropyl methylcellulose E 3 (HPMC E 3) on its physical stability was observed by light microscope. Vertical Franz diffusion cells were used to study the effects of degree of supersaturation (DS)and HPMC E 3 on the deposited amount of drug in the excised porcine skin after using the supersaturated system for 1 h. The distribution of ACV in the excised porcine skin was determined by frozen slicing stratified quantitative method after using the supersaturated system and marketed aciclovir cream for 1 h. RESULTS :Three ACV prodrugs were successfully synthesized. The established quantification methods met the requirements of biological sample analysis. Among all of the three ACV prodrugs , ACV-Hex showed the lowest saturated solubility in water [ (0.5±0.0)mmol/L] a nd the highest saturated solubility in propylene glycol [(53.4 ± 14.2)mmol/L],which made it potentially feasible to form supersaturated system with high DS. In 10%propylene glycol-water system ,the addition of HPMC E 3 163.com enabled ACV-Hex supersaturated systems ,with DS no morethan 4,to maintain physical stability within 1 h. The total deposited amount (ACV + ACV-Hex ) in skin after the application of ACV-Hex supersaturated system with DS of 4 for 1 h was higher than that after the application of ACV-Hex supersaturated system with DS less than 4 or without HPMC E 3. In addition ,the concentration of ACV in the basal epidermis (skin thickness was 100-160 mm)by supersaturated system was significantly higher than that of the marketed aciclovir cream (P<0.05). CONCLUSIONS:ACV-Hex,the lipophilic prodrug of ACV ,can form stable supersaturated system with DS of 4 in 10% propylene glycol-water system in the presence of HPMC E 3. High concentration of ACV could be accumulated in the basal epidermis after the skin was exposed to supersaturated system for 1 h,which may be valuable for local treatment skin infection of herpes simplex virus .
7.VEGF-B antibody and interleukin-22 fusion protein ameliorates diabetic nephropathy through inhibiting lipid accumulation and inflammatory responses.
Yilan SHEN ; Wei CHEN ; Lei HAN ; Qi BIAN ; Jiajun FAN ; Zhonglian CAO ; Xin JIN ; Tao DING ; Zongshu XIAN ; Zhiyong GUO ; Wei ZHANG ; Dianwen JU ; Xiaobin MEI
Acta Pharmaceutica Sinica B 2021;11(1):127-142
Diabetic nephropathy (DN) is considered the primary causes of end-stage renal disease (ESRD) and is related to abnormal glycolipid metabolism, hemodynamic abnormalities, oxidative stress and chronic inflammation. Antagonism of vascular endothelial growth factor B (VEGF-B) could efficiently ameliorate DN by reducing renal lipotoxicity. However, this pharmacological strategy is far from satisfactory, as it ignores numerous pathogenic factors, including anomalous reactive oxygen species (ROS) generation and inflammatory responses. We found that the upregulation of VEGF-B and downregulation of interleukin-22 (IL-22) among DN patients were significantly associated with the progression of DN. Thus, we hypothesized that a combination of a VEGF-B antibody and IL-22 could protect against DN not only by regulating glycolipid metabolism but also by reducing the accumulation of inflammation and ROS. To meet these challenges, a novel anti-VEGFB/IL22 fusion protein was developed, and its therapeutic effects on DN were further studied. We found that the anti-VEGFB/IL22 fusion protein reduced renal lipid accumulation by inhibiting the expression of fatty acid transport proteins and ameliorated inflammatory responses