1.A prospective study of the effect of laparoscopic splenectomy and azygoportal disconnection on liver synthetic function and liver cirrhosis
Kunqing XIAO ; Tianming GAO ; Jinhong CAI ; Zhaobao SHI ; Shengjie JIN ; Chi ZHANG ; Baohuan ZHOU ; Dousheng BAI ; Guoqing JIANG
Chinese Journal of Surgery 2025;63(1):51-57
Objective:To investigate the effect of laparoscopic splenectomy and azygoportal disconnection (LSD) on liver synthesis and development of liver cirrhosis.Methods:This is a prospective case series study.The clinical data of liver cirrhotic patients with portal hypertension who received LSD at the Department of Hepatobiliary Surgery of Northern Jiangsu People′s Hospital Affiliated to Yangzhou University from September 2014 to January 2016 were included. This study analyzed the diameter of the portal vein, the velocity of portal blood flow, the routine blood parameters, the liver function, the synthetic proteins of liver (antithrombin Ⅲ (AT-Ⅲ), protein S, protein C), and the serum content of liver fibrotic markers(collagen type Ⅳ, procollagen type Ⅲ, laminin, hyaluronidase). Repeated measures ANOVA was used for comparison between multiple groups, and least significance difference was used for post-hoc multiple comparison.Results:A total of 106 patients were included in the study, including 70 males and 36 females, aged (51.8±9.8) years(range: 28 to 75 years).Compared with the preoperative results, the diameter of portal vein and the velocity of portal vein decreased after surgery ( F=14.03, 12.15, respectively, both P<0.01). Compared with the preoperative results, the total bilirubin, albumin, prothrombin time, international normalized ratio, Child-Pugh score and classification were improved ( F=17.96, 56.01, 66.63, 35.83, 33.49, and 27.50, respectively, all P<0.01), and the AT-Ⅲ, protein S, protein C,collagen type Ⅳ, procollagen type Ⅲ, laminin and hyaluronidase levels were also improved ( F=47.87, 36.26, 18.02, 2.79, 14.58, 44.35, and 14.38, respectively, all P<0.01). Compared with the preoperative period, the diameter of portal vein was reduced from the first week to the 24 th month after surgery ( t=5.45 to 9.39, all P<0.01). Compared with the preoperative period, the velocity of portal vein blood from the first week after surgery to the 24 th month after surgery was decreased ( t=4.02 to 8.43, all P<0.01). Compared with the preoperative period, routine blood parameters (white blood count, hemoglobin, platelet count), liver function (total bilirubin, albumin, prothrombin time, international normalized ratio, Child-Pugh score), liver synthetic protein (AT-Ⅲ, protein S, protein C) and liver fibrotic markers (collagen type Ⅳ, procollagen type Ⅲ, laminin, hyaluronidase) were improved to varying degrees at the 24th month after surgery ( t=-20.46 to 11.93, all P<0.01). Conclusion:Preliminary findings show that LSD can reduce portal vein pressure, restore blood cell number, and improve liver synthesis function and the degree of liver fibrosis in patients with portal hypertension in liver cirrhosis.
2.A prospective study of the effect of laparoscopic splenectomy and azygoportal disconnection on liver synthetic function and liver cirrhosis
Kunqing XIAO ; Tianming GAO ; Jinhong CAI ; Zhaobao SHI ; Shengjie JIN ; Chi ZHANG ; Baohuan ZHOU ; Dousheng BAI ; Guoqing JIANG
Chinese Journal of Surgery 2025;63(1):51-57
Objective:To investigate the effect of laparoscopic splenectomy and azygoportal disconnection (LSD) on liver synthesis and development of liver cirrhosis.Methods:This is a prospective case series study.The clinical data of liver cirrhotic patients with portal hypertension who received LSD at the Department of Hepatobiliary Surgery of Northern Jiangsu People′s Hospital Affiliated to Yangzhou University from September 2014 to January 2016 were included. This study analyzed the diameter of the portal vein, the velocity of portal blood flow, the routine blood parameters, the liver function, the synthetic proteins of liver (antithrombin Ⅲ (AT-Ⅲ), protein S, protein C), and the serum content of liver fibrotic markers(collagen type Ⅳ, procollagen type Ⅲ, laminin, hyaluronidase). Repeated measures ANOVA was used for comparison between multiple groups, and least significance difference was used for post-hoc multiple comparison.Results:A total of 106 patients were included in the study, including 70 males and 36 females, aged (51.8±9.8) years(range: 28 to 75 years).Compared with the preoperative results, the diameter of portal vein and the velocity of portal vein decreased after surgery ( F=14.03, 12.15, respectively, both P<0.01). Compared with the preoperative results, the total bilirubin, albumin, prothrombin time, international normalized ratio, Child-Pugh score and classification were improved ( F=17.96, 56.01, 66.63, 35.83, 33.49, and 27.50, respectively, all P<0.01), and the AT-Ⅲ, protein S, protein C,collagen type Ⅳ, procollagen type Ⅲ, laminin and hyaluronidase levels were also improved ( F=47.87, 36.26, 18.02, 2.79, 14.58, 44.35, and 14.38, respectively, all P<0.01). Compared with the preoperative period, the diameter of portal vein was reduced from the first week to the 24 th month after surgery ( t=5.45 to 9.39, all P<0.01). Compared with the preoperative period, the velocity of portal vein blood from the first week after surgery to the 24 th month after surgery was decreased ( t=4.02 to 8.43, all P<0.01). Compared with the preoperative period, routine blood parameters (white blood count, hemoglobin, platelet count), liver function (total bilirubin, albumin, prothrombin time, international normalized ratio, Child-Pugh score), liver synthetic protein (AT-Ⅲ, protein S, protein C) and liver fibrotic markers (collagen type Ⅳ, procollagen type Ⅲ, laminin, hyaluronidase) were improved to varying degrees at the 24th month after surgery ( t=-20.46 to 11.93, all P<0.01). Conclusion:Preliminary findings show that LSD can reduce portal vein pressure, restore blood cell number, and improve liver synthesis function and the degree of liver fibrosis in patients with portal hypertension in liver cirrhosis.
3.Surveillance of antifungal resistance in clinical isolates of Candida spp.in East China Invasive Fungal Infection Group from 2018 to 2022
Dongjiang WANG ; Wenjuan WU ; Jian GUO ; Min ZHANG ; Huiping LIN ; Feifei WAN ; Xiaobo MA ; Yueting LI ; Jia LI ; Huiqiong JIA ; Lingbing ZENG ; Xiuhai LU ; Yan JIN ; Jinfeng CAI ; Wei LI ; Zhimin BAI ; Yongqin WU ; Hui DING ; Zhongxian LIAO ; Gen LI ; Hui ZHANG ; Hongwei MENG ; Changzi DENG ; Feng CHEN ; Na JIANG ; Jie QIN ; Guoping DONG ; Jinghua ZHANG ; Wei XI ; Haomin ZHANG ; Rong TANG ; Li LI ; Suzhen WANG ; Fen PAN ; Jing GAO ; Lu JIANG ; Hua FANG ; Zhilan LI ; Yiqun YUAN ; Guoqing WANG ; Yuanxia WANG ; Liping WANG
Chinese Journal of Infection and Chemotherapy 2024;24(4):402-409
Objective To monitor the antifungal resistance of clinical isolates of Candida spp.in the East China region.Methods MALDI-TOF MS or molecular methods were used to re-identify the strains collected from January 2018 to December 2022.Antifungal susceptibility testing was performed using the broth microdilution method.The susceptibility test results were interpreted according to the breakpoints of 2022 Clinical and Laboratory Standards Institute(CLSI)documents M27 M44s-Ed3 and M57s-Ed4.Results A total of 3 026 strains of Candida were collected,65.33%of which were isolated from sterile body sites,mainly from blood(38.86%)and pleural effusion/ascites(10.21%).The predominant species of Candida were Candida albicans(44.51%),followed by Candida parapsilosis complex(19.46%),Candida tropicalis(13.98%),Candida glabrata(10.34%),and other Candida species(0.79%).Candida albicans showed overall high susceptibility rates to the 10 antifungal drugs tested(the lowest rate being 93.62%).Only 2.97%of the strains showed dose-dependent susceptibility(SDD)to fluconazole.Candida parapsilosis complex had a SDD rate of 2.61%and a resistance rate of 9.42%to fluconazole,and susceptibility rates above 90%to other drugs.Candida glabrata had a SDD rate of 92.01%and a resistance rate of 7.99%to fluconazole,resistance rates of 32.27%and 48.24%to posaconazole and voriconazole non-wild-type strains(NWT),respectively,and susceptibility rates above 90%to other drugs.Candida tropicalis had resistance rates of 29.55%and 26.24%to fluconazole and voriconazole,respectively,resistance rates of 76.60%and 21.99%to posaconazole and echinocandins non-wild-type strains(NWT),and a resistance rate of 2.36%to echinocandins.Conclusions The prevalence and species distribution of Candida spp.in the East China region are consistent with previous domestic and international reports.Candida glabrata exhibits certain degree of resistance to fluconazole,while Candida tropicalis demonstrates higher resistance to triazole drugs.Additionally,echinocandins resistance has emerged in Candida albicans,Candida glabrata,Candida tropicalis,and Candida parapsilosis.
4.Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients (version 2024)
Yao LU ; Yang LI ; Leiying ZHANG ; Hao TANG ; Huidan JING ; Yaoli WANG ; Xiangzhi JIA ; Li BA ; Maohong BIAN ; Dan CAI ; Hui CAI ; Xiaohong CAI ; Zhanshan ZHA ; Bingyu CHEN ; Daqing CHEN ; Feng CHEN ; Guoan CHEN ; Haiming CHEN ; Jing CHEN ; Min CHEN ; Qing CHEN ; Shu CHEN ; Xi CHEN ; Jinfeng CHENG ; Xiaoling CHU ; Hongwang CUI ; Xin CUI ; Zhen DA ; Ying DAI ; Surong DENG ; Weiqun DONG ; Weimin FAN ; Ke FENG ; Danhui FU ; Yongshui FU ; Qi FU ; Xuemei FU ; Jia GAN ; Xinyu GAN ; Wei GAO ; Huaizheng GONG ; Rong GUI ; Geng GUO ; Ning HAN ; Yiwen HAO ; Wubing HE ; Qiang HONG ; Ruiqin HOU ; Wei HOU ; Jie HU ; Peiyang HU ; Xi HU ; Xiaoyu HU ; Guangbin HUANG ; Jie HUANG ; Xiangyan HUANG ; Yuanshuai HUANG ; Shouyong HUN ; Xuebing JIANG ; Ping JIN ; Dong LAI ; Aiping LE ; Hongmei LI ; Bijuan LI ; Cuiying LI ; Daihong LI ; Haihong LI ; He LI ; Hui LI ; Jianping LI ; Ning LI ; Xiying LI ; Xiangmin LI ; Xiaofei LI ; Xiaojuan LI ; Zhiqiang LI ; Zhongjun LI ; Zunyan LI ; Huaqin LIANG ; Xiaohua LIANG ; Dongfa LIAO ; Qun LIAO ; Yan LIAO ; Jiajin LIN ; Chunxia LIU ; Fenghua LIU ; Peixian LIU ; Tiemei LIU ; Xiaoxin LIU ; Zhiwei LIU ; Zhongdi LIU ; Hua LU ; Jianfeng LUAN ; Jianjun LUO ; Qun LUO ; Dingfeng LYU ; Qi LYU ; Xianping LYU ; Aijun MA ; Liqiang MA ; Shuxuan MA ; Xainjun MA ; Xiaogang MA ; Xiaoli MA ; Guoqing MAO ; Shijie MU ; Shaolin NIE ; Shujuan OUYANG ; Xilin OUYANG ; Chunqiu PAN ; Jian PAN ; Xiaohua PAN ; Lei PENG ; Tao PENG ; Baohua QIAN ; Shu QIAO ; Li QIN ; Ying REN ; Zhaoqi REN ; Ruiming RONG ; Changshan SU ; Mingwei SUN ; Wenwu SUN ; Zhenwei SUN ; Haiping TANG ; Xiaofeng TANG ; Changjiu TANG ; Cuihua TAO ; Zhibin TIAN ; Juan WANG ; Baoyan WANG ; Chunyan WANG ; Gefei WANG ; Haiyan WANG ; Hongjie WANG ; Peng WANG ; Pengli WANG ; Qiushi WANG ; Xiaoning WANG ; Xinhua WANG ; Xuefeng WANG ; Yong WANG ; Yongjun WANG ; Yuanjie WANG ; Zhihua WANG ; Shaojun WEI ; Yaming WEI ; Jianbo WEN ; Jun WEN ; Jiang WU ; Jufeng WU ; Aijun XIA ; Fei XIA ; Rong XIA ; Jue XIE ; Yanchao XING ; Yan XIONG ; Feng XU ; Yongzhu XU ; Yongan XU ; Yonghe YAN ; Beizhan YAN ; Jiang YANG ; Jiangcun YANG ; Jun YANG ; Xinwen YANG ; Yongyi YANG ; Chunyan YAO ; Mingliang YE ; Changlin YIN ; Ming YIN ; Wen YIN ; Lianling YU ; Shuhong YU ; Zebo YU ; Yigang YU ; Anyong YU ; Hong YUAN ; Yi YUAN ; Chan ZHANG ; Jinjun ZHANG ; Jun ZHANG ; Kai ZHANG ; Leibing ZHANG ; Quan ZHANG ; Rongjiang ZHANG ; Sanming ZHANG ; Shengji ZHANG ; Shuo ZHANG ; Wei ZHANG ; Weidong ZHANG ; Xi ZHANG ; Xingwen ZHANG ; Guixi ZHANG ; Xiaojun ZHANG ; Guoqing ZHAO ; Jianpeng ZHAO ; Shuming ZHAO ; Beibei ZHENG ; Shangen ZHENG ; Huayou ZHOU ; Jicheng ZHOU ; Lihong ZHOU ; Mou ZHOU ; Xiaoyu ZHOU ; Xuelian ZHOU ; Yuan ZHOU ; Zheng ZHOU ; Zuhuang ZHOU ; Haiyan ZHU ; Peiyuan ZHU ; Changju ZHU ; Lili ZHU ; Zhengguo WANG ; Jianxin JIANG ; Deqing WANG ; Jiongcai LAN ; Quanli WANG ; Yang YU ; Lianyang ZHANG ; Aiqing WEN
Chinese Journal of Trauma 2024;40(10):865-881
Patients with severe trauma require an extremely timely treatment and transfusion plays an irreplaceable role in the emergency treatment of such patients. An increasing number of evidence-based medicinal evidences and clinical practices suggest that patients with severe traumatic bleeding benefit from early transfusion of low-titer group O whole blood or hemostatic resuscitation with red blood cells, plasma and platelet of a balanced ratio. However, the current domestic mode of blood supply cannot fully meet the requirements of timely and effective blood transfusion for emergency treatment of patients with severe trauma in clinical practice. In order to solve the key problems in blood supply and blood transfusion strategies for emergency treatment of severe trauma, Branch of Clinical Transfusion Medicine of Chinese Medical Association, Group for Trauma Emergency Care and Multiple Injuries of Trauma Branch of Chinese Medical Association, Young Scholar Group of Disaster Medicine Branch of Chinese Medical Association organized domestic experts of blood transfusion medicine and trauma treatment to jointly formulate Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients ( version 2024). Based on the evidence-based medical evidence and Delphi method of expert consultation and voting, 10 recommendations were put forward from two aspects of blood support mode and transfusion strategies, aiming to provide a reference for transfusion resuscitation in the emergency treatment of severe trauma and further improve the success rate of treatment of patients with severe trauma.
5.Esthetic analysis of upper lip morphology variation after the cross-arch fixed restoration of maxillary implant-supported prostheses via radiographic methods
Shanshan YUAN ; Shan GAO ; Guoqing LI ; Kunzhan CAI ; Chunbo TANG
Chinese Journal of Stomatology 2024;59(6):559-564
Objective:To measure and analyze upper lip morphology variation before and after the cross-arch fixed restoration of the maxillary implant-supported prostheses using cone- beam CT (CBCT) to provide an esthetic objective reference for maxillary edentulous patients.Methods:There were 32 maxillary edentulous patients selected in the Department of Dental Implantology, The Affiliated Stomatological Hospital of Nanjing Medical University from January 2010 to December 2023. The CBCT data of patients with maxillary full-arch implant-supported fixed prostheses were retrospectively collected before implantation (T0), at the time of radio-guide insertion (T1), and after final repair (T2). The length and thickness of the upper lip were measured and analyzed at each time point, and the correlation between the upper lip contour data and facial esthetic parameters was analyzed.Results:After the final prosthodontic treatment, the length of the upper lip was significantly increased from (21.72±2.84) mm to (24.98±2.93) mm ( t=-8.13, P<0.001) compared with that before implant treatment. The widths of the middle and vermilion of the upper lip (Sm-Hm/Ls-UP), were reduced from (13.24±1.41), (12.81±1.67) mm to (11.36±1.67), (10.21±1.69) mm, with significant differences ( t=7.79, P<0001; t=9.37, P<0.001). The lower face height (Sn-Gn) was increased from (54.52±4.95) mm to (58.70±4.42) mm, with significant differences ( t=-11.05, P<0.001). However, the nasolabial angle reduced significantly from 95.35°± 7.70°to 90.53°±7.28°( t=7.68, P<0.001). The width of the middle of the upper lip with a radiation guide was (10.94±1.24) mm, and it increased significantly compared with that after the final prosthesis treatment ( t=-0.76, P<0.05). The proportion of straight upper lip profiles accounted for 59% (19/32), and the proportion of concave upper lip profiles accounted for 41% (13/32) after the final prosthesis treatment. In addition, the results of correlation analysis showed that the nasolabial angle variation was weak and negatively correlated with residual bone height ( r=-0.37, P=0.490). Conclusions:After the treatment of the maxillary full-arch implant-supported fixed prosthesis, the length of the upper lip increases, and the thickness of the upper lip becomes significantly thin. The maxillary full-arch implant-supported fixed prostheses support upper lips to improve the patients′ side appearances.
6.Expression of MTA1 in preeclamptic placental tissue and its effects on trophoblast function
Yao GENG ; Yang ZHANG ; Jie ZHAO ; Wei LI ; Guoqing CAI
Journal of Shanghai Jiaotong University(Medical Science) 2024;44(11):1383-1390
Objective·To investigate the expression of metastasis-associated protein 1(MTA1)in placental tissues of preeclampsia(PE)patients and its impact on trophoblast cell function.Methods·Placental specimens were collected from pregnant women with PE(PE group,20 cases)patients and healthy pregnant women as controls(control group,35 cases).Western blotting and immunofluorescent double staining were performed to analyze the expression changes of MTA1.The human first-trimester placental trophoblast cell line HTR8/SVneo was cultured,and the cell migration ability was assessed through wound healing assay.The cell invasion ability was detected using Transwell invasion assay.Under hypoxic conditions simulating the invasion of extravillous trophoblasts into the uterus,quantitative real-time polymerase chain reaction(qRT-PCR)was performed to analyze the mRNA expression of hypoxia-induced matrix metalloproteinases(MMP-2 and MMP-9),thus assessing their secretion levels.An extravillous trophoblast explant model was constructed to assess the overall villus outgrowth capacity of the explants.Immunohistochemistry(IHC)was performed to confirm the presence of the endothelial marker CD31 for placental angiogenesis analysis in mice.Fifteen Mta1-/-female mice and fifteen wild-type C57 female mice were mated with wild-type male C57 mice for fertility testing.Results·Western blotting revealed significantly decreased expression of MTA1 protein in placental tissues of the PE group compared to the control group.Immunofluorescent double staining showed that MTA1 was mainly localized in the nuclei of trophoblast cells.The wound healing assay demonstrated that HTR8/SVneo with stable MTA1 knockdown exhibited weaker cell migration ability compared to the control group(P=0.002).The Transwell invasion assay demonstrated a marked decrease in invasiveness in MTA1-knockdown cells,significantly lower than the control group(P=0.015).Hypoxia-induced expression levels of matrix metalloproteinases MMP-2 and MMP-9 were significantly reduced(P=0.020,P=0.003).After MTA1 knockdown,the overall villus outgrowth capacity of the explants was decreased compared to the control group(P=0.003).IHC results showed that CD31 expression in the placenta of Mta1-/-female mice was significantly lower than that of wild-type female mice(P=0.004).The litter size of Mta1-/-female mice was significantly reduced(P=0.000).Conclusion·The expression level of MTA1 is closely related to PE.Endogenous MTA1 may be involved in trophoblast invasion into the endometrium and villous capillary remodeling.
7.Theoretical construction and practical research on the curriculum system of children's rehabilitation specialty in rehabilitation therapy
Guoqing LIN ; Yi ZHENG ; Yueying YAO ; Tieyan FU ; Shuxiang HU ; Shuying CAI
Chinese Journal of Medical Education Research 2022;21(8):1000-1003
This article takes the setting of children's rehabilitation specialty in the rehabilitation therapy of Xiamen Medical College as an example, and expounds that in the process of cultivating talents in children's rehabilitation, theoretically, a training model of "2.5+0.5+1" has been built closely around the training goals of "solid foundation, wide caliber and strong skills", highlighting basic pediatric courses, core skills courses for children's rehabilitation therapy and special courses for children's rehabilitation. In practice, the training of "early clinical practice and early probation" for children's rehabilitation skills is stressed. The results show that students have greatly improved their professional knowledge and practical ability, and the effect of "early clinical practice and early probation" is obvious. Among the students who choose the direction of children's rehabilitation, 95% of the students want to engage in the career of children's rehabilitation and believe that the curriculum system will be of great help to their future employment.
8.Application value of P-loop digestive tract reconstruction in pancreaticoduodenectomy
Zheng ZHOU ; Guangdong PAN ; Zhen LIU ; Chuang QIN ; Min WEI ; Ketuan HUANG ; Jingming CAI ; Guangping CHU ; Guoqing OUYANG ; Shengqiang TAN
Chinese Journal of Digestive Surgery 2021;20(10):1085-1090
Objective:To investigate the application value of P-loop digestive tract recons-truction in pancreaticoduodenectomy (PD).Methods:The retrospective and descriptive study was conducted. The clinicopathological data of 21 ampullary disease patients undergoing PD in the Liuzhou People′s Hospital Affiliated to Guangxi Medical University from April to December 2020 were collected. There were 13 males and 8 females, aged from 35 to 76 years, with a median age of 60 years. All the 21 patients underwent PD and digestive tract reconstruction using P-loop method based on the Child reconstruction. Observation indicators: (1) surgical situations; (2) postoperative situations; (3) follow-up. Follow-up was conducted using outpatient examination or telephone interview to detect survival and discomfort symptoms of patients up to December 2020. Measurement data with normal distribution were represented as Mean± SD, and measurement data with skewed distribution were represented as M(range). Count data were described as absolute numbers or persentages. Results:(1) Surgical situations: all the 21 patients underwent PD successfully. The operation time, time of P-loop anastomosis and volume of intraoperative blood loss of 21 patients were (317±74)minutes, (14±3)minutes and 375 mL(range, 100-800 mL), respectively. Of the 21 patients, 17 cases had pancreatic texture as soft, 4 cases had pancreatic texture as hard, 3 cases had diameter of pancreas ≤3 mm, 18 cases had diameter of pancreas >3 mm, 14 cases were placed pancreatic duct stent, 7 cases were not placed pancreatic duct stent. (2) Postoperative situations: 2 of the 21 patients had grade A pancreatic fistula, and none of patient had grade B or grade C pancreatic fistula. One case had hepaticojejunal anastomotic fistula, 2 cases without pancreatic fistula had delayed gastric emptying and none of patient had abdominal infection or bleeding. The duration of postoperative hospital stay of 21 patients was (16±5)days, and none of patient died during postoperative 30 days. Results of postoperative histopathological examination showed there were 10 cases with duodenal papillary carcinoma, 4 cases with lower bile duct carcinoma, 3 cases with pancreatic head ductal adenocarcinoma, 1 case with duodenum stromal tumors, 1 case with gastric antrum carcinoma, 1 case with mass in the head of the pancreas of IgG4 and 1 case with choledochal cyst of type 3. (3) Follow-up: all 21 patients were followed up for 1.0 to 7.0 months, with a median follow-up time of 4.3 months. None of patient died. There was no abdominal pain, distension or dyspepsia during follow-up. One case was diagnosed as tumor liver metastasis at postoperative 5 months.Conclusion:P-loop digestive tract reconstruction in PD is safe and effective, with good short-term effect.
9.RhoA/ROCK pathway mediated DHT regulates function of early endothelial progenitor cells
Huazhong CAI ; Feng ZHOU ; Yan WANG ; Jue JIA ; Guoqing REN ; Zhenjun MIAO
Chinese Journal of Emergency Medicine 2020;29(4):525-529
Objective:To analyze the effects of DHT on the proliferation and migration of endothelial progenitor cells (EPCs) and the role of RhoA/ROCK pathway in this process.Methods:Early EPCs were isolated from peripheral blood of healthy adults, and cultured in serum-free EBM-2 medium for 24 h before incubation with various concentrations of DHT (1, 10, and 100 nmol/L). EPCs proliferative and migrative capacities were measured. The adherent cells were collected and randomLy divided into: control group, DHT group, C3 exoenzyme+DHT, Y-27632+DHT group. EPCs proliferation and migration were assayed by MTT assay and modified Boyden chamber assay respectively.Results:DHT significantly increased the proliferation and migration ability of EPCs in a dose- and time-dependent manner, maximum at 10 nmol/L, 24 h ( P<0.05). C3 exoenzyme [(0.22±0.02) vs (0.26±0.05), P>0.05] and Y-27632 [(0.21±0.04) vs (0.26±0.05), P>0.05] can attenuate the proliferative capacities of EPCs induced by DHT compared with the DHT group, but there was no statistical significance. The influence of DHT on EPCs migrative capacities can be abolished by C3 exoenzyme [(35.26±4.27) vs (46.92±5.46), P<0.05] and Y-27632 [(33.61±5.33) vs (46.92±5.46), P<0.01]. C3 exoenzyme [(116.75±7.42) vs (156.80± 21.74), P<0.05] and Y-27632 [(121.73±5.33) vs (156.80 ±21.74), P<0.01] could noticeably attenuate DHT-induced EPCs secretion of VEGF respectively. Conclusions:DHT can modulate EPCs proliferation, migration and the RhoA/ROCK pathway plays an important role in this process.
10.Management of corona virus disease-19 (COVID-19): the Zhejiang experience.
Kaijin XU ; Hongliu CAI ; Yihong SHEN ; Qin NI ; Yu CHEN ; Shaohua HU ; Jianping LI ; Huafen WANG ; Liang YU ; He HUANG ; Yunqing QIU ; Guoqing WEI ; Qiang FANG ; Jianying ZHOU ; Jifang SHENG ; Tingbo LIANG ; Lanjuan LI
Journal of Zhejiang University. Medical sciences 2020;49(1):0-0
The current epidemic situation of corona virus disease-19 (COVID-19) still remained severe. As the National Clinical Research Center for Infectious Diseases, the First Affiliated Hospital of Zhejiang University School of Medicine is the primary medical care center for COVID-19 inZhejiang Province. Based on the present expert consensus carried out by National Health Commission and National Administration of Traditional Chinese Medicine, our team summarized and established an effective treatment strategy centered on "Four-Anti and Two-Balance" for clinical practice. The "Four-Anti and Two-Balance"strategy included antivirus, anti-shock, anti-hyoxemia, anti-secondary infection, and maintaining of water, electrolyte and acid base balance and microecological balance. Meanwhile, integrated multidisciplinarypersonalized treatment was recommended to improve therapeutic effect. The importance of early viralogical detection, dynamic monitoring of inflammatory indexes and chest radiograph was emphasized in clinical decision-making. Sputum was observed with the highest positive rate of RT-PCR results. Viral nucleic acids could be detected in10% patients'blood samples at acute periodand 50% of patients had positive RT-PCR results in their feces. We also isolated alive viral strains from feces, indicating potential infectiousness of feces.Dynamic cytokine detection was necessary to timely identifyingcytokine storms and application of artificial liver blood purification system. The "Four-Anti and Two-Balance"strategyeffectively increased cure rate and reduced mortality. Early antiviral treatment could alleviate disease severity and prevent illness progression, and we found lopinavir/ritonavir combined with abidol showed antiviraleffects in COVID-19. Shock and hypoxemia were usually caused by cytokine storms. The artificial liver blood purification system could rapidly remove inflammatory mediators and block cytokine storm.Moreover, it also favoredthe balance of fluid, electrolyte and acid-base and thus improved treatment efficacy in critical illness. For cases of severe illness, early and also short periods of moderate glucocorticoid was supported. Patients with oxygenation index below 200 mmHg should be transferred to intensive medical center. Conservative oxygen therapy was preferred and noninvasive ventilation was not recommended. Patients with mechanical ventilation should be strictly supervised with cluster ventilator-associated pneumonia prevention strategies. Antimicrobial prophylaxis should be prescribed rationally and was not recommended except for patients with long course of disease, repeated fever and elevated procalcitonin (PCT), meanwhile secondary fungal infection should be concerned.Some patients with COVID-19 showed intestinal microbialdysbiosis with decreasedprobiotics such as and . Nutritional and gastrointestinal function should be assessed for all patients.Nutritional support and application of prebiotics or probiotics were suggested to regulate the balance of intestinal microbiota and reduce the risk of secondary infection due to bacterial translocation. Anxiety and fear were common in patients with COVID-19. Therefore, we established dynamic assessment and warning for psychological crisis. We also integrated Chinese medicine in treatment to promote disease rehabilitation through classification methods of traditional Chinese medicine. We optimized nursing process for severe patients to promote their rehabilitation. It remained unclear about viral clearance pattern after the SARS-CoV-2 infection. Therefore, two weeks' quarantine for discharged patients was required and a regular following up was also needed.The Zhejiang experience above and suggestions have been implemented in our center and achieved good results. However, since COVID-19 was a newly emerging disease, more work was warranted to improve strategies of prevention, diagnosis and treatment for COVID-19.

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