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Yu Y, Wan SM, Huang CY, Zhang SM, Sun AL, Liu JQ, Li SY, Zhu YF, Gu SX, Gao ZX. Combining genome-wide association study and transcriptome analysis to identify molecular markers and genetic basis of population-asynchronous ovarian development in Coilia nasus. Zool Res 2024; 45:491-505. [PMID: 38682431 DOI: 10.24272/j.issn.2095-8137.2023.336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024] Open
Abstract
Coilia nasus, a migratory fish species found in the middle and lower reaches of the Yangtze River and along offshore areas of China, possesses considerable aquacultural and economic potential. However, the species faces challenges due to significant variation in the gonadal development rate among females, resulting in inconsistent ovarian maturation times at the population level, an extended reproductive period, and limitations on fish growth rate due to ovarian prematurity. In the present study, we combined genome-wide association study (GWAS) and comparative transcriptome analysis to investigate the potential single nucleotide polymorphisms (SNPs) and candidate genes associated with population-asynchronous ovarian development in C. nasus. Genotyping of the female population based on whole-genome resequencing yielded 2 120 695 high-quality SNPs, 39 of which were suggestively associated with ovarian development. Of note, a significant SNP peak on LG21 containing 30 suggestively associated SNPs was identified, with cpne5a determined as the causal gene of the peak. Therefore, single-marker and haplotype association analyses were performed on cpne5a, revealing four genetic markers ( P<0.05) and seven haplotypes (r 2>0.9) significantly associated with the phenotype. Comparative transcriptome analysis of precociously and normally maturing individuals screened out 29 and 426 overlapping differentially expressed genes in the brain and ovary, respectively, between individuals of different body sizes. Integrating the GWAS and transcriptome analysis results, this study identified genes and pathways related to hypothalamic-pituitary-gonadal axis hormone secretion, extracellular matrix, angiogenesis, and gap junctions involved in population-asynchronous ovarian development. The insights gained from this study provide a basis for a deeper understanding of the molecular mechanisms underlying ovarian development in fish and may facilitate the genetic breeding of C. nasus strains exhibiting population-synchronous ovarian development in the future.
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Affiliation(s)
- Yue Yu
- College of Fisheries, Hubei Hongshan Laboratory/Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affairs/Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Shi-Ming Wan
- College of Fisheries, Hubei Hongshan Laboratory/Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affairs/Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei 430070, China
- Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Qingdao, Shandong 266237, China. E-mail:
| | - Cheng-You Huang
- Wuhan Hengyuxin Technology Breeding Professional Cooperative, Wuhan, Hubei 430117, China
| | - Shuang-Meng Zhang
- College of Fisheries, Hubei Hongshan Laboratory/Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affairs/Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Ai-Li Sun
- College of Fisheries, Hubei Hongshan Laboratory/Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affairs/Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Jun-Qi Liu
- College of Fisheries, Hubei Hongshan Laboratory/Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affairs/Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Shun-Yao Li
- College of Fisheries, Hubei Hongshan Laboratory/Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affairs/Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Yong-Fu Zhu
- Hubei Provincial Aquatic Science Research Institute, Wuhan, Hubei 430208, China
| | - Shu-Xin Gu
- Zhenjiang Jiangzhiyuan Fishery Technology Co., Ltd., Zhenjiang, Jiangsu 212213, China
| | - Ze-Xia Gao
- College of Fisheries, Hubei Hongshan Laboratory/Key Lab of Freshwater Animal Breeding, Ministry of Agriculture and Rural Affairs/Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei 430070, China
- Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Qingdao, Shandong 266237, China. E-mail:
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Tang MJ, Zhou LY, Jia XJ, Wu JJ, Lou YB, Jin MJ, Zhu YF. [Randomized controlled study on the application effect of a new type of intravenous radiofrequency closed therapy system made in China and an imported system]. Zhonghua Wai Ke Za Zhi 2024; 62:223-228. [PMID: 38291638 DOI: 10.3760/cma.j.cn112139-20231012-00167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Objective: To compare the application effect of domestic and imported intravenous radiofrequency closure system in the treatment of primary varicose veins of lower extremities. Methods: This single-center prospective, non-inferiority randomized controlled trial was performed in the Department of Vascular Surgery, the Fourth Affiliated Hospital, Zhejiang University School of Medicine from January 2021 to January 2022. Patients with primary varicose veins of lower extremities who met the ataxation criteria were randomly assigned to the experimental group(domestic novel venous radiofrequency closure system) or the control group(imported venous radiofrequency closure system) in a ratio of 1∶1. The two groups of subjects were compared in terms of target vein closure rate, technical success rate, system operation performance, incidence of adverse events and incidence of serious adverse events(SAE) within 6 months after surgery. Quantitative data were compared by Mann-Whitney U test, and categorical data were compared by χ2 test and non-inferiority test. Results: A total of 80 subjects were included in the trial (41 in the experimental group and 39 in the control group), including 27 males and 53 females, aged (M(IQR)) 55(23) years (range:40 to 78 years). There were 48 cases of left lower limb and 32 cases of right lower limb. The technical success rate and system control performance between the groups were 100%.The incidence of adverse events (58.5% (24/41) vs. 61.5% (24/39), χ2=0.075, P=0.784), and the incidence of SAE (7.3% (3/41) vs. 5.1% (2/39), χ2=0.163, P=0.686) within 6 months after surgery in experimental group and control group had no statistical significance. There was one device-related adverse event in each of the two groups. In the experimental group, one patient developed endovenous heat-induced thrombosis after surgery and recovered after taking rivaroxaban tablets. One patient in the control group had pain in the upper right thigh for more than 1 day after operation, which was cured after using analgesic cream. No device-related SAE occurred. The venous closure rate of the experimental group was 100% (38/38) at 6 months after surgery, and that of the control group was 97.4% (37/38). The difference between the two groups was 2.63% (95%CI:-3.19 to 8.45, Z=4.865, P<0.01), and the 95%CI lower limit of the difference in target venous closure rate between two groups was greater than the non-inferiority threshold of -10.00%. Conclusion: The early application effect of the new domestic intravenous radiofrequency closure system in patients with primary varicose veins of lower extremities is in line with expectations, it is not inferior to the imported system.
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Affiliation(s)
- M J Tang
- Department of Vascular Surgery, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu 322000, China
| | - L Y Zhou
- Department of Vascular Surgery, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu 322000, China
| | - X J Jia
- Department of Vascular Surgery, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu 322000, China
| | - J J Wu
- Department of Vascular Surgery, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu 322000, China
| | - Y B Lou
- Department of Vascular Surgery, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu 322000, China
| | - M J Jin
- School of Public Health, Zhejiang University School of Medicine, Hangzhou 310000, China
| | - Y F Zhu
- Department of Vascular Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
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Liu K, Zhu YF, Yang YS, Chen LQ, Hu JK. [Interpretation of Chinese expert consensus on the surgical treatment for adenocarcinoma of esophagogastric junction(2024 edition)]. Zhonghua Wei Chang Wai Ke Za Zhi 2024; 27:127-131. [PMID: 38413077 DOI: 10.3760/cma.j.cn441530-20231212-00214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Due to the unique nature of its anatomical location, the adenocarcinoma of esophagogastric junction (AEG) has been a subject of controversy and disagreement including its definition, staging, and treatment strategies. Chinse expert Consensus on Surgical Treatment of Adenocarcinoma of Esophagogastric Junction in China (2018 Edition) had been released in September 2018 and had played a pioneering role in unifying thoracic and general surgeons in China on surgical treatment strategies for AEG. Over the past five years, the emergence of several clinical research results on AEG has provided new clinical evidence for the selection of key surgical treatment strategies. Therefore, to further standardize the surgical treatment of AEG in China, Chinese Expert Consensus on Surgical Treatment of Adenocarcinoma of Esophagogastric Junction in China (2024 Edition) was released in 2024 by Chinese expert panel including 25 gastrointestinal surgeons and 24 thoracic surgeons. Based on the highest-level clinical research evidence in recent 5 years, this consensus ultimately formulates 29 recommendations on hotspots and key points on surgical treatment of AEG and summary 5 issues that are still awaiting further exploration. This review will provide a summary and detailed interpretation of the recommendations outlined in this consensus.
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Affiliation(s)
- K Liu
- Department of General Surgery and Gastric Cancer Center & Laboratory of Gastric Cancer, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Y F Zhu
- West China Clinical Medical College of Sichuan University, Chengdu 610041, China
| | - Y S Yang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China;Liu Kai and Zhu Yunfeng contributed equally to this aricle
| | - L Q Chen
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China;Liu Kai and Zhu Yunfeng contributed equally to this aricle
| | - J K Hu
- Department of General Surgery and Gastric Cancer Center & Laboratory of Gastric Cancer, West China Hospital, Sichuan University, Chengdu 610041, China
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Zhu YF, Zhu YS, Liu CC, Hu YT, Ding KF. [Updates of colonoscopy surveillance guidelines after screening and polypectomy, and related research progress]. Zhonghua Wei Chang Wai Ke Za Zhi 2024; 27:99-104. [PMID: 38262908 DOI: 10.3760/cma.j.cn441530-20230425-00137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
With the widespread application of colorectal cancer screening, the surveillance and management of the increasing number of screened population has become a pivotal aspect in preventing and controlling colorectal cancer. In recent years, researches have been conducted on the risk of colorectal cancer incidence and mortality in the population after screening. At the same time, various organizations in Europe and the United States have continuously updated colonoscopy surveillance after screening and polypectomy based on the latest research evidence. In this review, we summarized the current progress of studies on colorectal cancer risk in post-screening colorectal cancer populations and the key points of relevant guideline updates, in order to provide a reference for conducting relevant studies and formulating surveillance guidelines or consensus in China.
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Affiliation(s)
- Y F Zhu
- Chinese Medicine Hospital of Haining City, Haining Cancer Prevention and Treatment Research Institute, Haining 314400, China
| | - Y S Zhu
- Department of Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, the Second Affiliated Hospital, Zhejiang University School of Medicine; Zhejiang Provincial Clinical Research Center for Cancer, Hangzhou 310009, China
| | - C C Liu
- Department of Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, the Second Affiliated Hospital, Zhejiang University School of Medicine; Zhejiang Provincial Clinical Research Center for Cancer, Hangzhou 310009, China
| | - Y T Hu
- Department of Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, the Second Affiliated Hospital, Zhejiang University School of Medicine; Zhejiang Provincial Clinical Research Center for Cancer, Hangzhou 310009, China
| | - K F Ding
- Department of Colorectal Surgery and Oncology, Key Laboratory of Cancer Prevention and Intervention, Ministry of Education, the Second Affiliated Hospital, Zhejiang University School of Medicine; Zhejiang Provincial Clinical Research Center for Cancer, Hangzhou 310009, China Center for Medical Research and Innovation in Digestive System Tumors, Ministry of Education, Hangzhou 310058, China
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Liu DX, Meng Z, Zhu YF, Sun XF, Deng X, Shi MM, Hao Q, Kang X, Dai TY, Zhong HX, Yan JM, Jiang Q. Gram-level NH 3 Electrosynthesis via NO x reduction on a Cu Activated Co Electrode. Angew Chem Int Ed Engl 2024; 63:e202315238. [PMID: 37953400 DOI: 10.1002/anie.202315238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/06/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
Ambient electrochemical ammonia (NH3 ) synthesis is one promising alternative to the energy-intensive Haber-Bosch route. However, the industrial requirement for the electrochemical NH3 production with amperes current densities or gram-level NH3 yield remains a grand challenge. Herein, we report the high-rate NH3 production via NO2 - reduction using the Cu activated Co electrode in a bipolar membrane (BPM) assemble electrolyser, wherein BPM maintains the ion balance and the liquid level of electrolyte. Benefited from the abundant Co sites and optimal structure, the target modified Co foam electrode delivers a current density of 2.64 A cm-2 with the Faradaic efficiency of 96.45 % and the high NH3 yield rate of 279.44 mg h-1 cm-2 in H-type cell using alkaline electrolyte. Combined with in situ experiments and theoretical calculations, we found that Cu optimizes the adsorption behavior of NO2 - and facilitates the hydrogenation steps on Co sites toward a rapid NO2 - reduction process. Importantly, this activated Co electrode affords a large NH3 production up to 4.11 g h-1 in a homemade reactor, highlighting its large-scale practical feasibility.
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Affiliation(s)
- Dong-Xue Liu
- Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
| | - Zhe Meng
- Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
| | - Yong-Fu Zhu
- Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
| | - Xue-Feng Sun
- Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
| | - Xin Deng
- Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
| | - Miao-Miao Shi
- Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
| | - Qi Hao
- School of Engineering, Westlake University, Hangzhou, Zhejiang, 310030, China
| | - Xia Kang
- Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
| | - Tian-Yi Dai
- Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
| | - Hai-Xia Zhong
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Jun-Min Yan
- Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
| | - Qing Jiang
- Key Laboratory of Automobile Materials, Ministry of Education, School of Materials Science and Engineering, Jilin University, Changchun, 130022, China
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Liao XL, Zhu YF, Zhang WH, Chen XL, Liu K, Zhao LY, Yang K, Hu JK. [Clinicopathological characteristics and prognosis of patients with small bowel tumors: A single center analysis of 220 cases]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:467-474. [PMID: 37217355 DOI: 10.3760/cma.j.cn441530-20230228-00057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Objective: To analyze the clinicopathological characteristics and prognosis of patients with small bowel tumors. Methods: This was a retrospective, observational study. We collected clinicopathological data of patients with primary jejunal or ileal tumors who had undergone small bowel resection in the Department of Gastrointestinal Surgery, West China Hospital, Sichuan University between January 2012 and September 2017. The inclusion criteria included: (1) older than 18 years; (2) had undergone small bowel resection; (3) primary location at jejunum or ileum; (4) postoperative pathological examination confirmed malignancy or malignant potential; and (5) complete clinicopathological and follow-up data. Patients with a history of previous or other concomitant malignancies and those who had undergone exploratory laparotomy with biopsy but no resection were excluded. The clinicopathological characteristics and prognoses of included patients were analyzed. Results: The study cohort comprised 220 patients with small bowel tumors, 136 of which were classified as gastrointestinal stromal tumors (GISTs), 47 as adenocarcinomas, and 35 as lymphomas. The median follow-up for all patient was 81.0 months (75.9-86.1). GISTs frequently manifested as gastrointestinal bleeding (61.0%, 83/136) and abdominal pain (38.2%, 52/136). In the patients with GISTs, the rates of lymph node and distant metastasis were 0.7% (1/136) and 11.8% (16/136), respectively. The median follow-up time was 81.0 (75.9-86.1) months. The 3-year overall survival (OS) rate was 96.3%. Multivariate Cox regression-analysis results showed that distant metastasis was the only factor associated with OS of patients with GISTs (HR=23.639, 95% CI: 4.564-122.430, P<0.001). The main clinical manifestations of small bowel adenocarcinoma were abdominal pain (85.1%, 40/47), constipation/diarrhea (61.7%, 29/47), and weight loss (61.7%, 29/47). Rates of lymph node and distant metastasis in patients with small bowel adenocarcinoma were 53.2% (25/47) and 23.4% (11/47), respectively. The 3-year OS rate of patients with small bowel adenocarcinoma was 44.7%. Multivariate Cox regression-analysis results showed that distant metastasis (HR=4.018, 95%CI: 2.108-10.331, P<0.001) and adjuvant chemotherapy (HR=0.291, 95% CI: 0.140-0.609, P=0.001) were independently associated with OS of patients with small bowel adenocarcinoma. Small bowel lymphoma frequently manifested as abdominal pain (68.6%, 24/35) and constipation/diarrhea (31.4%, 11/35); 77.1% (27/35) of small bowel lymphomas were of B-cell origin. The 3-year OS rate of patients with small bowel lymphomas was 60.0%. T/NK cell lymphomas (HR= 6.598, 95% CI: 2.172-20.041, P<0.001) and adjuvant chemotherapy (HR=0.119, 95% CI: 0.015-0.925, P=0.042) were independently associated with OS of patients with small bowel lymphoma. Small bowel GISTs have a better prognosis than small intestinal adenocarcinomas (P<0.001) or lymphomas (P<0.001), and small bowel lymphomas have a better prognosis than small bowel adenocarcinomas (P=0.035). Conclusions: The clinical manifestations of small intestinal tumor are non-specific. Small bowel GISTs are relatively indolent and have a good prognosis, whereas adenocarcinomas and lymphomas (especially T/NK-cell lymphomas) are highly malignant and have a poor prognosis. Adjuvant chemotherapy would likely improve the prognosis of patients with small bowel adenocarcinomas or lymphomas.
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Affiliation(s)
- X L Liao
- Laboratory of Gastric Cancer, Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Y F Zhu
- Laboratory of Gastric Cancer, Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - W H Zhang
- Laboratory of Gastric Cancer, Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - X L Chen
- Laboratory of Gastric Cancer, Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - K Liu
- Laboratory of Gastric Cancer, Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - L Y Zhao
- Laboratory of Gastric Cancer, Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - K Yang
- Laboratory of Gastric Cancer, Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - J K Hu
- Laboratory of Gastric Cancer, Gastric Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
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Liu Y, Shen W, Tian ZQ, Zhang YC, Tao GQ, Zhu YF, Song GD, Cao JC, Huang YK, Song C. [Network meta-analysis comparing the clinical outcomes and safety of robotic, laparoscopic, and transanal total rectal mesenteric resection for rectal cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:475-484. [PMID: 37217356 DOI: 10.3760/cma.j.cn441530-20220916-00387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Objective: To methodically assess the clinical effectiveness and safety of robot-assisted total rectal mesenteric resection (RTME), laparoscopic-assisted total rectal mesenteric resection (laTME), and transanal total rectal mesenteric resection (taTME). Methods: A computer search was conducted on PubMed, Embase, Cochrane Library, and Ovid databases to identify English-language reports published between January 2017 and January 2022 that compared the clinical efficacy of the three surgical procedures of RTME, laTME, and taTME. The quality of the studies was evaluated using the NOS and JADAD scales for retrospective cohort studies and randomized controlled trials, respectively. Direct meta-analysis and reticulated meta-analysis were performed using Review Manager software and R software, respectively. Results: Twenty-nine publications comprising 8,339 patients with rectal cancer were ultimately included. The direct meta-analysis indicated that the length of hospital stay was longer after RTME than after taTME, whereas according to the reticulated meta-analysis the length of hospital stay was shorter after taTME than after laTME (MD=-0.86, 95%CI: -1.70 to -0.096, P=0.036). Moreover, the incidence of anastomotic leak was lower after taTME than after RTME (OR=0.60, 95%CI: 0.39 to 0.91, P=0.018). The incidence of intestinal obstruction was also lower after taTME than after RTME (OR=0.55, 95%CI: 0.31 to 0.94, P=0.037). All of these differences were statistically significant (all P<0.05). There were no statistically significant differences between the three surgical procedures regarding the number of lymph nodes cleared, length of the inferior rectal margin, or rate of positive circumferential margins (all P>0.05). An inconsistency test using nodal analysis revealed no statistically significant differences between the results of direct and indirect comparisons of the six outcome indicators (all P>0.05). Furthermore, we detected no significant overall inconsistency between direct and indirect evidence. Conclusion: taTME has advantages over RTME and laTME, in terms of radical and surgical short-term outcomes in patients with rectal cancer.
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Affiliation(s)
- Y Liu
- Department of General Surgery, the Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, China
| | - W Shen
- Department of General Surgery, the Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, China
| | - Z Q Tian
- Department of General Surgery, the Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, China
| | - Y C Zhang
- Department of General Surgery, the Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, China
| | - G Q Tao
- Department of General Surgery, the Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, China
| | - Y F Zhu
- Department of General Surgery, the Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, China
| | - G D Song
- Department of General Surgery, the Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, China
| | - J C Cao
- Department of General Surgery, the Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, China
| | - Y K Huang
- Department of General Surgery, the Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, China
| | - C Song
- Department of General Surgery, the Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi 214023, China
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Wang GX, Zhou J, Chen YM, Xu LD, Tao SM, Ma J, Sun YH, Wu MS, Chen ZW, Zhu YF, Xie MR. Mechanism of electroacupuncture at acupoints of the lung meridian through PKA/PKC regulation of TRPV1 in chronic cough after lung surgery in guinea pigs. J Thorac Dis 2023; 15:1848-1860. [PMID: 37197543 PMCID: PMC10183505 DOI: 10.21037/jtd-23-409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 04/21/2023] [Indexed: 05/19/2023]
Abstract
Background Acupuncture has achieved good results in the treatment of cough, asthma, chronic obstructive pulmonary disease (COPD) and other lung diseases, but the mechanism associated with acupuncture in the treatment of chronic cough induced by lung surgery is unknown. We investigated whether acupuncture therapy could improve the symptoms of chronic cough after lung surgery through cyclic-AMp dependent protein kinase A (PKA)/cyclic-AMp dependent protein kinase C (PKC) regulation of the transient receptor potential vanilloid-1 (TRPV1) signaling pathway. Methods The guinea pigs were divided into 5 groups: the Sham operation Group (Sham), the Model Group (Model), the Electroacupuncture + Model Group (EA + M), the H89 + Model Group (H89 + M) and the Go6983 + Model Group (Go6983 + M). The effect of treatment was determined by measuring cough symptoms (number of coughs/cough incubation period) as the outcome criterion. The levels of inflammatory cytokines in bronchoalveolar lavage fluid (BALF) and blood were determined by enzyme-linked immunosorbent assays (ELISA). Lung tissue was stained with hematoxylin and eosin (H&E). The expression of p-PKA, p-PKC and p-TRPV1 proteins was measured by Western blotting. The mRNA levels of TRPV1, Substance P (SP), calcitonin gene-related peptide (CGRP) and neurokinin-1R (NK1R) were measured by real-time polymerase chain reaction (RT-PCR). Results Acupuncture significantly reduced the cough frequency and prolonged the cough latency of chronic cough in guinea pigs after lung surgery. In addition, acupuncture reduced the damage to lung tissue. The levels of inflammatory cytokines decreased in all treatment groups, the expression levels of p-PKA, p-PKC and p-TRPV1 were significantly inhibited and the mRNA levels of TRPV1, SP, CGRP and NK1R decreased significantly after acupuncture treatment. Conclusions Acupuncture therapy ameliorated chronic cough in guinea pigs after lung surgery by regulating the TRPV1 signaling pathway via PKA/PKC. Our results showed that acupuncture may be an effective treatment of chronic cough after lung surgery, and also clarified the potential mechanism, which provides a theoretical basis for the clinical treatment of patients with chronic cough after lung surgery.
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Affiliation(s)
- Gao-Xiang Wang
- Department of Thoracic Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Jie Zhou
- Department of Acupuncture, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - You-Mou Chen
- The First Department of Oncology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Liang-Dong Xu
- Department of Thoracic Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Shan-Ming Tao
- Department of Thoracic Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Jia Ma
- The First Department of Oncology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Ye-Han Sun
- The First Department of Oncology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Ming-Sheng Wu
- Department of Thoracic Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Zheng-Wei Chen
- Department of Thoracic Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yong-Fu Zhu
- The First Department of Oncology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Ming-Ran Xie
- Department of Thoracic Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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Zhu YF, Xu J, Wu J, Ma J, Zhang DW, Xia LM, Wang TM, Huo XX, Song H. Compound shougong powder inhibits the malignant phenotype of hepatocellular carcinoma cells by targeting the DNA damage repair pathway. J Pharm Pharmacol 2023; 75:703-711. [PMID: 36966364 DOI: 10.1093/jpp/rgad026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 03/06/2023] [Indexed: 03/27/2023]
Abstract
OBJECTIVES Compound Shougong Powder (SGS), a traditional Chinese medicine formulation, has been used to treat cancer for many years with remarkable efficacy. However, the mechanisms underlying the therapeutic effect of SGS in Hepatocellular carcinoma (HCC) are not completely clear. METHODS The survival and metastasis of HCC cells were examined by CCK-8 assay, EdU assay, Wound-healing and Transwell assay. The anti-tumour effect of SGS was studied using hoechst 33258 staining and flow cytometry. RNA sequencing was applied to detect the underlying mechanism. Comet DNA, qRT-PCR and WB experiments were performed for validation. In addition, HCC nude mouse model was constructed to detect SGS effect in vivo. KEY FINDINGS SGS inhibited the proliferation, migration and invasion of HCC cells and induced apoptosis in vitro. In addition, SGS also suppressed tumour growth in a nude mouse model of HCC in a dose-dependent manner. RNA sequencing of the suitably treated HCC cells revealed significant changes in the expression levels of genes involved in the DNA damage repair pathway. The sequencing results were verified by Comet DNA, qRT-PCR, WB assays and molecular docking. CONCLUSIONS Taken together, SGS inhibits the malignant phenotype of HCC cells by down-regulating DNA repair genes and consequently inducing DNA damage.
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Affiliation(s)
- Yong-Fu Zhu
- The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Jing Xu
- Graduate School of Anhui University of Chinese Medicine, Hefei, China
| | - Jian Wu
- The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Jia Ma
- Graduate School of Anhui University of Chinese Medicine, Hefei, China
| | - Dong-Wei Zhang
- The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Li-Ming Xia
- The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Tian-Ming Wang
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Xing-Xing Huo
- The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Hang Song
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
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Shao SS, Lin CZ, Zhu YF, Chen C, Wu QJ, Chen RR. Higher dietary acid load is associated with hyperuricemia in Chinese adults: a case-control study. BMC Endocr Disord 2022; 22:286. [PMID: 36401201 PMCID: PMC9673281 DOI: 10.1186/s12902-022-01192-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 10/17/2022] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND This study aims to explore the association between dietary acid load and hyperuricemia in Chinese adults. METHODS A case-control study was conducted. Adult participants with hyperuricemia were recruited as the cases and those without hyperuricemia were as the controls. Food consumption was evaluated by food frequency questionnaire (FFQ). Dietary acid load was assessed by potential renal acid load (PRAL) and net endogenous acid production (NEAP). Dietary acid load was divided into four levels: the first quartile (Q1), the second quartile (Q2), the third quartile (Q3) and the fourth quartile (Q4). Logistic regression model was applied for exploring the association between dietary acid load (PRAL and NEAP) and hyperuricemia. Odds ratio (OR) and its correspondence confidence interval (CI) were computed. RESULTS A total of 290 participants were eligible in this study, in which there were 143 individuals in case group and 147 in control group. A higher level of PRAL was found to be associated with odds of hyperuricemia. ORs of hyperuricemia for Q2, Q3 and Q4 of PRAL were 2.74 (95%CI: 1.94 ~ 3.88, p-value: 0.004), 2.90 (95%CI: 2.05 ~ 4.10, p-value: 0.002) and 3.14 (95%CI: 2.22 ~ 4.45, p-value: 0.001), respectively. There was a positive association between elevated NEAP and hyperuricemia. OR of hyperuricemia for Q2 was not material significance (OR:1.54, 95%CI: 0.93 ~ 2.53, p-value: 0.210), however, ORs of hyperuricemia for Q3 (OR: 2.40, 95%CI: 1.70 ~ 3.38, p-value: 0.011) and Q4 (OR: 3.27, 95%CI: 2.31 ~ 4.62, p-value: 0.001) were statistically significant. CONCLUSION Higher level of dietary acid load was found to be associated with hyperuricemia in Chinese adults, indicative of advocation of a well-balanced diet in this population.
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Affiliation(s)
- Si-Si Shao
- Department of nephropathy rheumatology and immunology, Wenzhou hospital of traditional Chinese medicine affiliated to Zhejiang Chinese medicine university, Wenzhou City, China
| | - Chong-Ze Lin
- Department of nephropathy rheumatology and immunology, Wenzhou hospital of traditional Chinese medicine affiliated to Zhejiang Chinese medicine university, Wenzhou City, China
| | - Yong-Fu Zhu
- Department of nephropathy rheumatology and immunology, Wenzhou hospital of traditional Chinese medicine affiliated to Zhejiang Chinese medicine university, Wenzhou City, China
| | - Chun Chen
- Department of nephropathy rheumatology and immunology, Wenzhou hospital of traditional Chinese medicine affiliated to Zhejiang Chinese medicine university, Wenzhou City, China
| | - Qian-Jia Wu
- Department of nephropathy rheumatology and immunology, Wenzhou hospital of traditional Chinese medicine affiliated to Zhejiang Chinese medicine university, Wenzhou City, China
| | - Ruo-Ru Chen
- Department of nephropathy rheumatology and immunology, Wenzhou hospital of traditional Chinese medicine affiliated to Zhejiang Chinese medicine university, No. 9, Liuhongqiao Road, Lucheng District, Wenzhou City, 325000, China.
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11
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Ma ZY, Zhu YF, Liu ZH, Zhu HY, Li L, Liu AJ. [Expression of PD-L1 and tumor infiltrating lymphocyte markers in uterine cervical carcinoma]. Zhonghua Bing Li Xue Za Zhi 2022; 51:602-607. [PMID: 35750639 DOI: 10.3760/cma.j.cn112151-20220403-00252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the expression of PD-L1, CD4, CD8 and CXCL-13 in cervical carcinoma, and their clinicopathological significance was analyzed. Methods: A total of 77 patients with cervical carcinoma in the Seventh Medical Center, PLA General Hospital from January 2019 to December 2021 were included. All patients received radical surgical resection in the Seventh Medical Center of Chinese PLA General Hospital. The expression of PD-L1, CD4, CD8 and CXCL-13 was detected by immunohistochemical (IHC) method. The correlation between IHC markers and patients' clinicopathological parameters was analyzed. Results: There were 59 cases of squamous cell carcinoma and 18 cases of adenocarcinoma (ranging from 29 to 69 years) with an average of (49.4±9.8) years. PD-L1 was expressed in different degrees in cervical squamous cell carcinoma and adenocarcinoma (χ²=4.975, P=0.026); CD4+, CD8+and CXCL-13+tumor infiltrating lymphocytes (TIL) were observed in the carcinoma cell nests and peritumoral stroma. PD-L1 expression in cervical carcinoma was moderately correlated with the number of CD4+TIL in the carcinoma nests, and the number of CD8+, CXCL-13+TIL infiltration in the carcinoma nests and stroma, but not to the patient's age, histologic differentiation, presence or absence of vascular invasion, presence or absence of lymph node metastasis and FIGO stage (P>0.05). Conclusions: The high expression of PD-L1 in cervical carcinoma tissues is closely related to the number of TIL in the carcinoma nests and peritumor stroma, suggesting that they may have important reference value for predicting the response to immunotherapy in patients with cervical carcinoma.
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Affiliation(s)
- Z Y Ma
- Department of Clinical Pathology, School of Basic Medicine, Weifang Medical College, Weifang 102653, China Department of Pathology, the Seventh Medical Center, PLA General Hospital, Beijing 100700, China
| | - Y F Zhu
- Department of Clinical Pathology, School of Basic Medicine, Weifang Medical College, Weifang 102653, China Department of Pathology, the Seventh Medical Center, PLA General Hospital, Beijing 100700, China
| | - Z H Liu
- Department of Pathology, the Seventh Medical Center, PLA General Hospital, Beijing 100700, China
| | - H Y Zhu
- Department of Pathology, the Seventh Medical Center, PLA General Hospital, Beijing 100700, China
| | - L Li
- Department of Pathology, the Seventh Medical Center, PLA General Hospital, Beijing 100700, China
| | - A J Liu
- Department of Pathology, the Seventh Medical Center, PLA General Hospital, Beijing 100700, China
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Meng H, Ran Q, Dai TY, Shi H, Zeng SP, Zhu YF, Wen Z, Zhang W, Lang XY, Zheng WT, Jiang Q. Surface-Alloyed Nanoporous Zinc as Reversible and Stable Anodes for High-Performance Aqueous Zinc-Ion Battery. Nanomicro Lett 2022; 14:128. [PMID: 35699828 PMCID: PMC9198195 DOI: 10.1007/s40820-022-00867-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/25/2022] [Indexed: 05/25/2023]
Abstract
Metallic zinc (Zn) is one of the most attractive multivalent-metal anode materials in post-lithium batteries because of its high abundance, low cost and high theoretical capacity. However, it usually suffers from large voltage polarization, low Coulombic efficiency and high propensity for dendritic failure during Zn stripping/plating, hindering the practical application in aqueous rechargeable zinc-metal batteries (AR-ZMBs). Here we demonstrate that anionic surfactant-assisted in situ surface alloying of Cu and Zn remarkably improves Zn reversibility of 3D nanoporous Zn electrodes for potential use as high-performance AR-ZMB anode materials. As a result of the zincophilic ZnxCuy alloy shell guiding uniform Zn deposition with a zero nucleation overpotential and facilitating Zn stripping via the ZnxCuy/Zn galvanic couples, the self-supported nanoporous ZnxCuy/Zn electrodes exhibit superior dendrite-free Zn stripping/plating behaviors in ambient aqueous electrolyte, with ultralow polarizations under current densities up to 50 mA cm‒2, exceptional stability for 1900 h and high Zn utilization. This enables AR-ZMB full cells constructed with nanoporous ZnxCuy/Zn anode and KzMnO2 cathode to achieve specific energy of as high as ~ 430 Wh kg‒1 with ~ 99.8% Coulombic efficiency, and retain ~ 86% after long-term cycles for > 700 h.
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Affiliation(s)
- Huan Meng
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, School of Materials Science and Engineering, and Electron Microscopy Center, Jilin University, Changchun, 130022, People's Republic of China
| | - Qing Ran
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, School of Materials Science and Engineering, and Electron Microscopy Center, Jilin University, Changchun, 130022, People's Republic of China
| | - Tian-Yi Dai
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, School of Materials Science and Engineering, and Electron Microscopy Center, Jilin University, Changchun, 130022, People's Republic of China
| | - Hang Shi
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, School of Materials Science and Engineering, and Electron Microscopy Center, Jilin University, Changchun, 130022, People's Republic of China
| | - Shu-Pei Zeng
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, School of Materials Science and Engineering, and Electron Microscopy Center, Jilin University, Changchun, 130022, People's Republic of China
| | - Yong-Fu Zhu
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, School of Materials Science and Engineering, and Electron Microscopy Center, Jilin University, Changchun, 130022, People's Republic of China
| | - Zi Wen
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, School of Materials Science and Engineering, and Electron Microscopy Center, Jilin University, Changchun, 130022, People's Republic of China
| | - Wei Zhang
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, School of Materials Science and Engineering, and Electron Microscopy Center, Jilin University, Changchun, 130022, People's Republic of China
| | - Xing-You Lang
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, School of Materials Science and Engineering, and Electron Microscopy Center, Jilin University, Changchun, 130022, People's Republic of China.
- State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun, 130022, People's Republic of China.
| | - Wei-Tao Zheng
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, School of Materials Science and Engineering, and Electron Microscopy Center, Jilin University, Changchun, 130022, People's Republic of China
| | - Qing Jiang
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, School of Materials Science and Engineering, and Electron Microscopy Center, Jilin University, Changchun, 130022, People's Republic of China.
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Ma WJ, Wang XS, Tian H, Zhu YF, Wei ZQ, Xu J, Zhu QR, Zeng M. [Characteristics of SARS-CoV-2 Omicron infection in children imported from Hong Kong]. Zhonghua Er Ke Za Zhi 2022; 60:539-544. [PMID: 35658359 DOI: 10.3760/cma.j.cn112140-20220423-00367] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To understand the clinical characteristics of children with SARS-CoV-2 Omicron infection imported from Hong Kong Special Administrative Region. Methods: This retrospective study was conducted to collect the data including clinical manifestations, outcomes and vaccination of 107 children with SARS-CoV-2 Omicron infection imported from Hong Kong Special Administrative Region to be admitted to the designated referral hospital in Shanghai from February to March 2022. According to the occurrence of clinical symptoms, the cases were divided into asymptomatic group and symptomatic group. According to the age of diagnosis, the cases were divided into <3 years group, 3-<6 years group and 6-<18 years group, and the clinical manifestations in different age group were analyzed with t-test and Mann-Whitney rank-sum test. Besides, to analyze the effectiveness of vaccination against SARS-CoV-2 Omicron infection in different age group, the cases aged 3-<18 years were also subdivided into unvaccinated group, 1-dose group and 2-dose group, and the relative risk (RR) was used to demonstrate the effectiveness. Results: Among the 107 cases, 66 were male and 41 were female, with infection age of 10 (5, 14) years. There were 29 cases in the asymptomatic group, and 78 cases in the symptomatic group, and no significant difference in the age of infection was observed between the 2 groups (11 (6, 14) vs. 10 (5, 14) years, Z=0.49, P>0.05). And there were no severe cases in symptomatic group. The length of hospitalization was (18±6) days, and was longer in symptomatic group than that in asymptomatic group ((19±6) vs. (16±7) d, t=0.17, P=0.030). Eight-two cases (76.6%) had a history of epidemiological exposure and, among whom, 81 cases (75.7%) were associated with household transmission. Among symptomatic group, 57 cases (73.1%) had fever and 20 cases (25.6%) had cough. Of the 74 cases undergoing chest CT examination, 17 cases (23.0%) showed mild abnormalities. Of the 83 cases who received the lab tests, 23 cases (27.7%) had white blood cell counts<4×109/L, 3 cases (3.6%) had C-reaction protein >8.0 mg/L, and 6 cases (7.2%) had slightly elevated aspartate transaminase and alanine aminotransferase. Among the 92 children aged 3-<18 years, 31 cases were unvaccinated, 34 cases received 1 dose, and 27 cases received 2 doses. The interval between the last vaccination and infection was 2.2 (0.6, 6.0) months; the interval between the last vaccination and infection in the 2-dose group was longer than that in 1-dose group (6.0 (4.5, 7.3) vs. 0.7 (0.3,2.0) months, Z=3.59, P<0.001).The risk of symptomatic infection was reduced by 45% (RR=0.55, 95% CI 0.35-0.87) with two-dose vaccination compared to non-vaccination in cases aged 3-<18 years. All these cases recovered completely. Conclusions: Children infected with SARS-CoV-2 Omicron are usually mild or asymptomatic. Household transmission is the main pattern of infection with SARS-CoV-2 Omicron in children. Two-dose SARS-CoV-2 vaccination in children aged 3-<18 years can provide partial protection against disease caused by SARS-CoV-2 Omicron.
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Affiliation(s)
- W J Ma
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - X S Wang
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - H Tian
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Y F Zhu
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Z Q Wei
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - J Xu
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Q R Zhu
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - M Zeng
- Department of Infectious Disease, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
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Wang WC, Zhan T, Fan ZH, Xiang KX, Zhu YF, Duan YM, Cao ZG. [Molluscicidal effect of immersion with 50% wettable powder of niclosamide ethanolamine salt against Oncomelania hupensis on the soil surface and inside the soil layer in winter]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 34:396-399. [PMID: 36116930 DOI: 10.16250/j.32.1374.2021097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To evaluate the molluscicidal effect of 50% wettable powder of niclosamide ethanolamine salt (WPNES) against Oncomelania hupensis on the soil surface and inside the soil layer by immersion method in winter. METHODS O. hupensis snails were placed on the soil surface and 2, 5 cm and 10 cm under the soil layer outdoors in winter, and then immersed in 50% WPNES at concentrations of 1 mg/L and 2 mg/L for 1, 3 d and 7 d, while dechlorinated water served as controls. Snail mortality was observed following immersion with 50% WPNES on the soil surface and inside the soil layer. RESULTS Following immersion with 50% WPNES at concentrations of 2 mg/L and 1 mg/L outdoors in winter, the 3-day corrected snail mortality rates were 98.0% and 76.0% on the soil surface, and the 7-day corrected snail mortality rate was both 100.0%. Following immersion with 50% WPNES at concentrations of 2 mg/L and 1 mg/L outdoors in winter, the 7-day corrected snail mortality rates were 95.5% and 85.6% 2 cm below the soil layer, 66.0% and 6.4% 5 cm below the soil layer. However, the 7-day snail mortality rate swere comparable between the 50% WPNES treatment group (at 2 mg/L and 1 mg/L) and controls 10 cm below the soil layer (both P > 0.05). CONCLUSIONS Immersion of 50% WPNES at a concentration of 2 mg/L for 7 days presents a high molluscicidal efficacy against O. hupensis on the soil surface and 5 cm within the soil layers in winter.
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Affiliation(s)
- W C Wang
- Maanshan Municipal Center of Disease Control and Prevention, Maanshan, Anhui 243000, China
| | - T Zhan
- Maanshan Municipal Center of Disease Control and Prevention, Maanshan, Anhui 243000, China
| | - Z H Fan
- Maanshan Municipal Center of Disease Control and Prevention, Maanshan, Anhui 243000, China
| | - K X Xiang
- Maanshan Municipal Center of Disease Control and Prevention, Maanshan, Anhui 243000, China
| | - Y F Zhu
- Maanshan Municipal Center of Disease Control and Prevention, Maanshan, Anhui 243000, China
| | - Y M Duan
- Maanshan Municipal Center of Disease Control and Prevention, Maanshan, Anhui 243000, China
| | - Z G Cao
- Anhui Provincial Institute of Schistosomiasis Control, Hefei, Anhui 230021, China
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Huo XX, Wang SJ, Song H, Li MD, Yu H, Wang M, Gong HX, Qiu XT, Zhu YF, Zhang JY. Roles of Major RNA Adenosine Modifications in Head and Neck Squamous Cell Carcinoma. Front Pharmacol 2021; 12:779779. [PMID: 34899345 PMCID: PMC8657411 DOI: 10.3389/fphar.2021.779779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 11/09/2021] [Indexed: 11/13/2022] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer malignancy worldwide and is known to have poor prognosis. The pathogenesis behind the development of HNSCC is not fully understood. Modifications on RNA are involved in many pathophysiological processes, such as tumor development and inflammation. Adenosine-related RNA modifications have shown to be linked to cancer and may play a role in cancer occurrence and development. To date, there are at least 170 different chemical RNA modifications that modify coding and non-coding RNAs (ncRNAs). These modifications affect RNA stability and transcription efficiency. In this review, we focus on the current understanding of the four major RNA adenosine modifications (N6-Methyladenosine, N1-Methyladenosine, Alternative Polyadenylation Modification and A-to-I RNA editing) and their potential molecular mechanisms related to HNSCC development and progression. We also touch on how these RNA modifications affect treatment of HNSCCs.
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Affiliation(s)
- Xing-Xing Huo
- Experimental Center of Clinical Research, Scientific Research Department, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China.,Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
| | - Shu-Jie Wang
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
| | - Hang Song
- Department of Biochemistry and Molecular Biology, School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Ming-de Li
- Experimental Center of Clinical Research, Scientific Research Department, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Hua Yu
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Meng Wang
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
| | - Hong-Xiao Gong
- Experimental Center of Clinical Research, Scientific Research Department, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Xiao-Ting Qiu
- Experimental Center of Clinical Research, Scientific Research Department, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Yong-Fu Zhu
- Experimental Center of Clinical Research, Scientific Research Department, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Jian-Ye Zhang
- Key Laboratory of Molecular Target and Clinical Pharmacology and the State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
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Chen LX, Ma L, Zhu YF. [Mental health status and its influencing factors of nurses in geriatric department after workplace violence]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:578-582. [PMID: 34488264 DOI: 10.3760/cma.j.cn121094-20200518-00269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the mental health status and influencing factors of geriatric nurses after workplace violence. Methods: From February 2019 to January 2020, 102 geriatric nurses who suffered workplace violence in three hospitals in Shaoxing were collected as the observation group and 100 geriatric nurses who did not suffer workplace violence in the same period as the control group. The general data of nurses in the two groups were investigated, the workplace violence was investigated with the hospital workplace violence questionnaire, the mental disorders and mental diseases were investigated with the symptom checklist 90 (SCL-90) , the symptoms of post-traumatic stress disorder were investigated with the symptom checklist of post-traumatic stress disorder (pcl-c) , and the psychological elasticity was investigated with the psychological elasticity scale, Social support was investigated with social support scale (SSRs) . Results: The total average score of symptom checklist 90 (SCL-90) of nurses with workplace violence was (1.49 ± 0.48) . Compared with the control group, the total average score of SCL-90, somatization, obsessive-compulsive symptoms, depression, anxiety and fear factors in the observation group were significantly increased (P<0.05) . The total score of post-traumatic stress disorder symptom list (pcl-c) in the observation group was (34.51±9.87) . Compared with the control group, the total average score of pcl-c, re experience, avoidance and vigilance factors in the observation group were significantly increased (P<0.05) . The total average score of SCL-90 of nurses with workplace violence was positively correlated with psychological elasticity and social support (P<0.05) . Multivariate linear analysis showed that psychological elasticity, tenacity and control, optimism, social support and subjective support were the main factors affecting nurses'mental health. Conclusion: Geriatric nurses suffering from workplace violence are prone to mental health problems and post-traumatic stress disorder, which should be improved by improving their psychological elasticity and social support.
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Affiliation(s)
- L X Chen
- The 7th People's Hospital of Shaoxing, Shaoxing People's Hospital, Shaoxing Municipal Hospital, Shaoxing 312000, China
| | - L Ma
- The 7th People's Hospital of Shaoxing, Shaoxing People's Hospital, Shaoxing Municipal Hospital, Shaoxing 312000, China
| | - Y F Zhu
- The 7th People's Hospital of Shaoxing, Shaoxing People's Hospital, Shaoxing Municipal Hospital, Shaoxing 312000, China
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Lu Q, Zhang H, Dong XY, Liu HM, Jiang YM, Zou YX, Shen YM, Zhao DY, Chen HB, Ai T, Liu CG, Shen ZB, Yang JM, Zheng YJ, Chen YS, Chen WG, Zhu YF, Zhang CL, Tian LJ, Wu GR, Li L, Zheng AB, Gu M, Wei YY, Wei LM. [Consistency of peripheral whole blood and venous serum procalcitonin in children: a multicenter parallel controlled study]. Zhonghua Er Ke Za Zhi 2021; 59:471-477. [PMID: 34102820 DOI: 10.3760/cma.j.cn112140-20210224-00153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the consistency of peripheral whole blood and venous serum procalcitonin (PCT) levels, and the value of peripheral whole blood PCT in evaluating pediatric bacterial infection. Methods: This multicenter cross-sectional parallel control study was conducted in 11 children's hospital. All the 1 898 patients older than 28 days admitted to these hospitals from March 2018 to February 2019 had their peripheral whole blood and venous serum PCT detected simultaneously with unified equipment, reagent and method. According to the venous serum PCT level, the patients were stratified to subgroups. Analysis of variance and chi-square test were used to compare the demographic characteristics among groups. And the correlation between the peripheral blood and venous serum PCT level was investigated by quantitative Pearson correlation analysis.The PCT resultes were also converted into ranked data to further test the consistency between the two sampling methods by Spearman's rank correlation test. Furthermore, the ranked data were converted into binary data to evaluate the consistency and investigate the best cut-off of peripheral blood PCT level in predicting bacterial infection. Results: A total of 1 898 valid samples were included (1 098 males, 800 females),age 27.4(12.2,56.7) months. There was a good correlation between PCT values of peripheral whole blood and venous serum (r=0.97, P<0.01). The linear regression equation was PCTvenous serum=0.135+0.929×PCTperipheral whole blood. However, when stratified to 5 levels, PCT results showed diverse and unsatisfied consistency between the two sampling methods (r=0.51-0.92, all P<0.01). But after PCT was converted to ordinal categorical variables, the stratified analysis showed that the coincidence rate of the measured values by the two sampling methods in each boundary area was 84.9%-97.1%. The dichotomous variables also showed a good consistency (coincidence rate 96.8%-99.3%, Youden index 0.82-0.89). According to the severity of disease, the serum PCT value was classified into 4 intervals(<0.5、0.5-<2.0、2.0-<10.0、≥10.0 μg/L), and the peripheral blood PCT value also showed a good predictive value (AUC value was 0.991 2-0.997 9). The optimal cut points of peripheral whole blood PCT value 0.5、1.0、2.0、10.0 μg/L corresponding to venous serum PCT values were 0.395, 0.595, 1.175 and 3.545 μg/L, respectively. Conclusions: There is a good correlation between peripheral whole blood PCT value and the venous serum PCT value, which means that the peripheral whole blood PCT could facilitate the identification of infection and clinical severity. Besides, the sampling of peripheral whole blood is simple and easy to repeat.
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Affiliation(s)
- Q Lu
- Department of Pulmonology, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200062, China
| | - H Zhang
- Clinical Laboratory, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200062, China
| | - X Y Dong
- Department of Pulmonology, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200062, China
| | - H M Liu
- Department of Pediatric Pulmonology, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - Y M Jiang
- Clinical Laboratory, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - Y X Zou
- Department of the Second Respiratory, Tianjin Children's Hospital, Tianjin 300134, China
| | - Y M Shen
- Clinical Laboratory, Tianjin Children's Hospital, Tianjin 300074, China
| | - D Y Zhao
- Department of Pulmonology, Nanjing Children's Hospital Affiliated to Nanjing Medical University, Nanjing 210008, China
| | - H B Chen
- Clinical Laboratory, Nanjing Children's Hospital Affiliated to Nanjing Medical University, Nanjing 210008, China
| | - T Ai
- Department of Pulmonology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - C G Liu
- Clinical Laboratory, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Z B Shen
- Department of Pulmonology, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou 450053, China
| | - J M Yang
- Clinical Laboratory, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou 450053, China
| | - Y J Zheng
- Department of Pulmonology, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - Y S Chen
- Clinical Laboratory, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - W G Chen
- Department of Clinical Laboratory, the Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China
| | - Y F Zhu
- Department of Clinical Laboratory, the Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, China
| | - C L Zhang
- Department of Pulmonology, Xuzhou Children's Hospital, Xuzhou Medical University, Xuzhou 221006, China
| | - L J Tian
- Clinical Laboratory, Xuzhou Children's Hospital, Xuzhou Medical University, Xuzhou 221006, China
| | - G R Wu
- Department of Clinical Laboratory, Wuxi Children's Hospital, Wuxi 214023, China
| | - L Li
- Department of Pulmonology, Wuxi Children's Hospital, Wuxi 214023, China
| | - A B Zheng
- Department of Education and Research, Changzhou Children's Hospital Affiliated to Nantong University, Nantong 213003, China
| | - M Gu
- Department of Pulmonology, Changzhou Children's Hospital Affiliated to Nantong University, Nantong 213003, China
| | - Y Y Wei
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - L M Wei
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing 211166, China
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Yao X, Chen ZW, Liu GJ, Lang XY, Zhu YF, Gao W, Jiang Q. Steric Hindrance- and Work Function-Promoted High Performance for Electrochemical CO Methanation on Antisite Defects of MoS 2 and WS 2. ChemSusChem 2021; 14:2255-2261. [PMID: 33851508 DOI: 10.1002/cssc.202100457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/06/2021] [Indexed: 06/12/2023]
Abstract
CO methanation from electrochemical CO reduction reaction (CORR) is significant for sustainable environment and energy, but electrocatalysts with excellent selectivity and activity are still lacking. Selectivity is sensitive to the structure of active sites, and activity can be tailored by work function. Moreover, intrinsic active sites usually possess relatively high concentration compared to artificial ones. Here, antisite defects MoS2 and WS2 , intrinsic atomic defects of MoS2 and WS2 with a transition metal atom substituting a S2 column, were investigated for CORR by density functional theory calculations. The steric hindrance from the special bowl structure of MoS2 and WS2 ensured good selectivity towards CO methanation. Coordination environment variation of the active sites, the under-coordinated Mo or W atoms, effectively lowered the work function, making MoS2 and WS2 highly active for CO methanation with the required potential of -0.47 and -0.49 V vs. reversible hydrogen electrode, respectively. Moreover, high concentration of active sites and minimal structural deformation during the catalytic process of MoS2 and WS2 enhanced their attraction for future commercial application.
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Affiliation(s)
- Xue Yao
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, P. R. China
- School of Materials Science and Engineering, Jilin University, Changchun, 130022, P. R. China
| | - Zhi-Wen Chen
- Department of Materials Science and Engineering, University of Toronto, Toronto, ON M5S 3E4, Canada
| | - Guo-Jun Liu
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, P. R. China
- School of Materials Science and Engineering, Jilin University, Changchun, 130022, P. R. China
| | - Xing-You Lang
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, P. R. China
- School of Materials Science and Engineering, Jilin University, Changchun, 130022, P. R. China
| | - Yong-Fu Zhu
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, P. R. China
- School of Materials Science and Engineering, Jilin University, Changchun, 130022, P. R. China
| | - Wang Gao
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, P. R. China
- School of Materials Science and Engineering, Jilin University, Changchun, 130022, P. R. China
| | - Qing Jiang
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, P. R. China
- School of Materials Science and Engineering, Jilin University, Changchun, 130022, P. R. China
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19
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Song WH, Liu A, Zhu YF, Wang SY, Yang XH, Ma LN. Effects of butylphthalide on cognitive dysfunction and expression of superoxide dismutase and Smac in cortex of rats with chronic cerebral ischemia. J BIOL REG HOMEOS AG 2020; 34:2121-2126. [PMID: 33198448 DOI: 10.23812/20-305-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- W H Song
- Department of Psychiatry, Ji'nan City Yingcheng Rongjun Hospital, Jinan, China
| | - A Liu
- Department of Pharmacy, Zhangqiu Maternity and Child Care Hospital, Jinan, China
| | - Y F Zhu
- Department of Anesthesiology, Qingdao Central Hospital, Qingdao University, Qingdao, China
| | - S Y Wang
- Emergency Ward, the People's Hospital of Zhangqiu Area, Jinan, China
| | - X H Yang
- Department of Pharmacy, the People's Hospital of Zhangqiu Area, Jinan, China
| | - L N Ma
- Department of Internal Medicine, Community Health Service Centers of Grand View Garden, Blood Station of Jinan, Jinan, China
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20
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Zhu YF, Gao JB, Wan Z, He Y, Guo KZ, Zuo YP, Huang YX. [Surveillance of Oncomelania hupensis distribution and water levels in Gaoyou sections of the eastern route project of the South-to-North Water Diversion Project following operation of the project]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 33:79-80. [PMID: 33660480 DOI: 10.16250/j.32.1374.2020171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To understand the distribution of Oncomelania hupensis snails and changes of water levels in Gaoyou sections of the Li Canal following the operation of the eastern route project of the South-to-North Water Diversion Project. METHODS The Oncomelania snails were monitored in the river banks and water bodies of Gaoyou sections of the Li Canal by means of systematic sampling combined with environmental sampling as well as collection of the floaters from 2014 to 2019, and the water levels were collected in Gaoyou sections of the Li Canal at the typical hydrological year before the operation of the eastern route project of the South-to-North Water Diversion Project and during the period between 2016 and 2019. RESULTS A total area of 235.42 hm2 were investigated and a total of 75.8 kg floaters were collected in Gaoyou sections of the Li Canal from 2014 to 2019; however, no snails were found. The water level in Gaoyou sections of the Li Canal was predominantly high in the flood season and low in the dry season before the operation of the eastern route project of the South-to-North Water Diversion Project, and the water level was elevated in the dry season and relatively low in the flood season after the operation of the project. CONCLUSIONS Following the operation of the eastern route project of the South-to-North Water Diversion Project, the original river bank that is characterized by "land in winter and water in summer" has changed in Gaoyou sections of the Li Canal, which is not favorable for snail breeding.
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Affiliation(s)
- Y F Zhu
- Gaoyou Center for Disease Control and Prevention, Jiangsu Province, Gaoyou 225600, China
| | - J B Gao
- Gaoyou Center for Disease Control and Prevention, Jiangsu Province, Gaoyou 225600, China
| | - Z Wan
- Gaoyou Center for Disease Control and Prevention, Jiangsu Province, Gaoyou 225600, China
| | - Y He
- Gaoyou Center for Disease Control and Prevention, Jiangsu Province, Gaoyou 225600, China
| | - K Z Guo
- Gaoyou Center for Disease Control and Prevention, Jiangsu Province, Gaoyou 225600, China
| | - Y P Zuo
- Yangzhou Municipal Center for Disease Control and Prevention, Jiangsu Province, China
| | - Y X Huang
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, China
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21
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Tian YF, Dong SY, Liu SZ, Zhu YF, Yao XB. [Does age affect the hidden blood loss of elderly intertrochanteric fracture patients fixed with combined external fixator?]. Zhonghua Yi Xue Za Zhi 2020; 100:373-377. [PMID: 32074782 DOI: 10.3760/cma.j.issn.0376-2491.2020.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Objective: To evaluate the postoperatively hidden blood loss of elderly intertrochanteric fracture patients fixed with combined external fixator, and to explore the correlation between hidden blood loss and age. Methods: A retrospective analysis was conducted on 60 elderly intertrochanteric fracture patients who were admitted to the Department of Orthopedics of Hebei Provincial Hospital from January 2016 to May 2019. All the fractures were fixed with combined external fixators. The patients were divided into two groups according to the age: there were 31 cases in group A (60-80 years old) and 29 cases in group B (≥80 years old). The Gross equation and the Nandler formula were used to evaluate the amount of hidden blood loss based on changes in hematocrit (Hct) at the day preoperatively, 3 days postoperatively and the weight. The data were compared between the two groups by independent-sample t test. Results: The decreased Hct, hemoglobin(Hb) and the dominant blood loss and hidden blood loss in group A and B was 3.4%±1.7%, (13±7) g/L, (25±6) ml, (186±7) ml and 3.8%±1.2%, (13±3) g/L, (24±8) ml, (194±7) ml, respectively. There was no significant differences in the dominant and hidden blood loss between the groups (t=0.309, 0.883, both P>0.05). Conclusion: The age doesn't affect the hidden blood loss in elderly intertrochanteric fracture patients fixed with combined external fixator, which indicated that the operation is safe and reliable for such patients.
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Affiliation(s)
- Y F Tian
- First Department of Orthopedics, Hebei Provincial Hospital of Chinese Medicine, Shijiazhuang 050011, China
| | - S Y Dong
- Affiliated Hospital of Hebei University of Traditional Chinese Medicine, Shijiazhuang 050011, China
| | - S Z Liu
- Emergency Department, Hebei Provincial Hospital of Chinese Medicine, Hebei Province, Shijiazhuang 050011, China
| | - Y F Zhu
- First Department of Orthopedics, Hebei Provincial Hospital of Chinese Medicine, Shijiazhuang 050011, China
| | - X B Yao
- First Department of Orthopedics, Hebei Provincial Hospital of Chinese Medicine, Shijiazhuang 050011, China
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Wu XP, Zhu YF, Zhang KY, Ding XM, Bai SP, Wang JP, Peng HW, Zeng QF. Growth performance, zinc tissue content, and intestinal health in meat ducks fed different specific surface area of micronized zinc oxide. Poult Sci 2019; 98:3894-3901. [DOI: 10.3382/ps/pez108] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 02/22/2019] [Indexed: 12/29/2022] Open
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Hu YX, Ma YH, Zhu YF, Bai JQ, Kang NL, Li J, Zhang SY. [A case report of variegate porphyria maenisfeseting as phototoxicity]. Zhonghua Nei Ke Za Zhi 2019; 58:311-314. [PMID: 30917427 DOI: 10.3760/cma.j.issn.0578-1426.2019.04.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- Y X Hu
- Department of Endocrinology, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Y H Ma
- Department of Dermatology, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Y F Zhu
- Department of Endocrinology, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - J Q Bai
- Department of Endocrinology, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - N L Kang
- Department of Endocrinology, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - J Li
- Department of Endocrinology, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - S Y Zhang
- Department of Endocrinology, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
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24
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Wu LJ, Wang FL, Zou JH, Yang J, Huang YE, Ming F, Chen XR, Chen RR, Zhu YF. [Analysis of screening strategy of group B streptococcus in the third trimester and its influence on pregnancy outcome]. Zhonghua Fu Chan Ke Za Zhi 2019; 54:154-159. [PMID: 30893715 DOI: 10.3760/cma.j.issn.0529-567x.2019.03.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the screening strategy of group B streptococcus (GBS) in the reproductive tract of women in the third trimester and analyze its impact on pregnancy outcome. Methods: A total of 85 461 pregnant women in 35-37 weeks of gestation from Bao'an Maternity and Child Health Hospital, Jinan University from January 2011 to June 2018 were enrolled. They were divided into 3 periods according to different GBS screening strategies, the unscreened period included 31 384 cases (36.72%), 33 267 cases (38.93%) were included in partial screening period, 20 810 cases (24.35%) were included in screening period. All GBS screening positive pregnant women were given intrapartum antibiotic prophylaxis (IAP). The impact on pregnancy outcomes, and the impact of different GBS collection transport and culture methods on the positive rate of GBS screening were analyzed. Results: (1) The incidence of neonatal early onset GBS disease (EOGBSD) in unscreened period was 0.03% (11/31 773), in partial screening period was 0.02%(6/33 887), and in screening period, the incidence of neonatal EOGBSD decreased to 0, the difference was statistically significant (χ(2)=7.86, P=0.02).(2) The incidence of hematogenous infection of GBS in pregnant women was 0.02%(6/33 887) in partial screening period, and there was none in screening period, there was no significant difference (adjusted χ(2)=3.75, P=0.05). (3) In the screening period, the positive rate of GBS was 14.08%(2 719/19 306), which was significantly higher than the positive rate of GBS in the partial screening period (11.48%, 2 058/17 920; χ(2)=56.12, P=0.00). (4) Antibiotic sensitivity tests of 4 777 GBS strains showed that the antibiotics with higher resistance rate were tetracycline (81.52%, 3 896/4 777), erythromycin (66.59%, 3 181/4 777), and clindamycin (64.31%, 3 072/4 777). The combination of erythromycin, clindamycin and tetracycline was the most common resistant pattern, accounting for 48.80% (2 331/4 777). No penicillin, ceftriaxone or vancomycin resistant strains was found. Conclusions: GBS screening strategy in different regions could combine the local neonatal EOGBSD incidence rate, maternal GBS colonization rate, and the socioeconomic factors to determine whether universal GBS screening or screening for high-risk maternal women. GBS screening positive rate is related to the population, scope of the investigation, the sample collection, delivery and culture methods. The multi-drug resistance rate of GBS is high.
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Affiliation(s)
| | - F L Wang
- Department of Clinical Laboratory, Bao'an Maternal and Child Health Hospital, Jinan University, Shenzhen 518106, China
| | - J H Zou
- Department of Clinical Laboratory, Bao'an Maternal and Child Health Hospital, Jinan University, Shenzhen 518106, China
| | - J Yang
- Department of Obstetrics and Gynecology, Bao'an Maternal and Child Health Hospital, Jinan University, Shenzhen 518106, China
| | - Y E Huang
- Department of Infection Control, Bao'an Maternal and Child Health Hospital, Jinan University, Shenzhen 518106, China
| | - F Ming
- Department of Obstetrics and Gynecology, Bao'an Maternal and Child Health Hospital, Jinan University, Shenzhen 518106, China
| | - X R Chen
- Department of Obstetrics and Gynecology, Bao'an Maternal and Child Health Hospital, Jinan University, Shenzhen 518106, China
| | - R R Chen
- Department of Obstetrics and Gynecology, Bao'an Maternal and Child Health Hospital, Jinan University, Shenzhen 518106, China
| | - Y F Zhu
- Department of Obstetrics and Gynecology, Bao'an Maternal and Child Health Hospital, Jinan University, Shenzhen 518106, China
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Zhu YF, Wu SB, Zhou MQ, Xie MR, Xiong R, Xu SB, Xu GW. Increased expression of TRPV1 in patients with acute or chronic cough after lung cancer surgery. Thorac Cancer 2019; 10:988-991. [PMID: 30883022 PMCID: PMC6449258 DOI: 10.1111/1759-7714.13042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 02/21/2019] [Accepted: 02/22/2019] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND We investigated preoperative and postoperative TRPV1, bradykinin (BK), and prostaglandin e-2 (PGE2) levels in patients who underwent lung cancer surgery and evaluated the correlations between these levels and the development of acute or chronic cough after surgery. METHODS We evaluated 60 patients with non-small cell lung cancer who underwent lobectomy at our center between August and October 2018. TRPV1, BK, and PGE2 levels were determined by enzyme-linked immunosorbent assay and postoperative cough was assessed using the visual analog scale (VAS). RESULTS The postoperative serum TRPV1, BK, and PEG2 levels of the 60 patients were significantly higher than the preoperative levels (P < 0.001). Thirty-five patients (58.3%) were diagnosed with acute cough (VAS ≥ 60 mm), and 25 were diagnosed with non-acute cough (41.7%). Three days after surgery, the serum TRPV1, BK, and PGE2 levels were significantly higher in the acute cough group than in the non-acute cough group (P < 0.001). Twenty-two patients (36.7%) were diagnosed with chronic cough (VAS ≥ 60 mm), and 25 (62.3%) were diagnosed with non-chronic cough. Eight weeks after surgery, the serum TRPV1, BK, and PGE2 levels were significantly higher in the chronic cough group than in the non-chronic cough group (P < 0.05). CONCLUSIONS The postoperative TRPV1, BK and PGE2 levels were significantly higher than the preoperative levels. The TRPV1 level was also higher in patients with an acute or chronic cough than in patients without. Postoperative acute or chronic cough symptoms can be improved and alleviated by blocking the TRPV1 pathway.
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Affiliation(s)
- Yong-Fu Zhu
- Graduate School of Anhui University of Chinese Medicine, Hefei, China.,Department of Oncology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Sheng-Bing Wu
- Research Institute of Acupuncture and Meridian, Anhui Academy of Chinese Medicine, Hefei, China
| | - Mei-Qi Zhou
- Research Institute of Acupuncture and Meridian, Anhui Academy of Chinese Medicine, Hefei, China.,Bozhou Research Institute of Chinese Medicine, Anhui Academy of Chinese Medicine, Bozhou, China
| | - Ming-Ran Xie
- Department of Thoracic Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Ran Xiong
- Department of Thoracic Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Shi-Bin Xu
- Department of Thoracic Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Guang-Wen Xu
- Department of Thoracic Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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26
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Xie MR, Zhu YF, Zhou MQ, Wu SB, Xu GW, Xu SB, Xu MQ. Analysis of factors related to chronic cough after lung cancer surgery. Thorac Cancer 2019; 10:898-903. [PMID: 30875149 PMCID: PMC6449237 DOI: 10.1111/1759-7714.13021] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 01/30/2019] [Accepted: 01/30/2019] [Indexed: 12/13/2022] Open
Abstract
Background In this study, we investigated the relationship between chronic cough and clinicopathological features in postoperative patients with non‐small cell lung cancer (NSCLC) and evaluated the effectiveness of acupuncture therapy for the treatment of postoperative chronic cough in patients with NSCLC. Methods We retrospectively evaluated 171 patients with NSCLC who received lobectomy at our center between September 2017 and February 2018. The Mandarin Chinese version of the Leicester Cough Questionnaire (LCQ‐MC) was used to evaluate the degree of cough in patients. Postoperative cough was assessed by a visual analog scale (VAS). Results The total LCQ‐MC score for the whole group was 19.79 ± 0.53 before surgery and 18.40 ± 0.70 after surgery (p < 0.001). Logistic regression analysis showed that right lung cancer, difficult airway, acute cough and history of COPD were independent predictors of chronic cough. Of the 68 patients diagnosed with chronic cough, 41 received acupuncture therapy (acupuncture therapy group), and 27 received no acupuncture therapy (no therapy group). No significant difference was found between the two groups in terms of their LCQ‐MC scores at eight weeks after surgery (p = 0.756). However, the acupuncture therapy group had a significantly higher LCQ‐MC score than the no therapy group at 10 weeks after surgery (p = 0.002). Conclusions Right lung cancer, difficult airway, acute cough, and history of COPD are independent predictors of chronic cough after surgery. For patients with chronic cough, acupuncture therapy can shorten the recovery time and improve quality of life after surgery.
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Affiliation(s)
- Ming-Ran Xie
- Department of Thoracic Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Yong-Fu Zhu
- Graduate School of Anhui University of Chinese Medicine, Hefei, China.,Department of Oncology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, China
| | - Mei-Qi Zhou
- Bozhou Research Institute of Chinese Medicine, Anhui Academy of Chinese Medicine, Bozhou, China.,Research Institute of Acupuncture and Meridian, Anhui Academy of Chinese Medicine, Hefei, China
| | - Sheng-Bing Wu
- Research Institute of Acupuncture and Meridian, Anhui Academy of Chinese Medicine, Hefei, China
| | - Guang-Wen Xu
- Department of Thoracic Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Shi-Bin Xu
- Department of Thoracic Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Mei-Qing Xu
- Department of Thoracic Surgery, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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Zhu YF, Tang YM, Sun HJ, Yu Q, Zhu M. [Facial symmetry after conservative treatment of unilateral condylar fracture in children: a three-dimensional study]. Zhonghua Kou Qiang Yi Xue Za Zhi 2018; 53:318-323. [PMID: 29972989 DOI: 10.3760/cma.j.issn.1002-0098.2018.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the influence of condylar fractures on the growth of condylars after conservative treatments by three-dimensional measurement. Methods: Twenty three children with unilateral condylar fracture followed-up for at least 1 year in Shanghai Ninth People's Hospital were included from June 2016 to March 2017. CT scans were performed for each patient. Three-dimensional virtual skulls were reconstructed and measuring points were defined with Simplant 11.04 software. The depth of glenoid fossa, height of articular eminence, width, height and depth of condylar, deviation of pogonion were measured. Statistical analyses were conducted to assess difference between the bifid group and the normal group. Results: No difference was observed in the vertical position of crest of the articular eminence between two groups (P=0.110). The vertical position of roof of the glenoid fossa in bifid side was significantly superior than the one in normal side (P=0.010). Bifid side had a shorter (P=0.002) and wider(P=0.002) condylar than normal side did. No difference was observed in the depth of condylar between two groups (P=0.071). The average deviation of pogonion was (0.69±1.75) mm (P=0.072) from sagittal plan. Conclusions: This short-termed study indicates that children's growth potential of condylar is under average after conservative treatments. Because the bone hyperosteogeny of glenoid fossa compensates the hypotrophy of condylar, no deviation of pogonion is detected.
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Affiliation(s)
- Y F Zhu
- Department of Oral and Craniomaxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology & National Clinical Research Center of Stomatology, Shanghai 200011, China
| | - Y M Tang
- Department of Oral and Craniomaxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology & National Clinical Research Center of Stomatology, Shanghai 200011, China
| | - H J Sun
- Department of Oral and Craniomaxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology & National Clinical Research Center of Stomatology, Shanghai 200011, China
| | - Q Yu
- Department of Oral and Craniomaxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology & National Clinical Research Center of Stomatology, Shanghai 200011, China
| | - M Zhu
- Department of Oral and Craniomaxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology & National Clinical Research Center of Stomatology, Shanghai 200011, China
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Wang ZP, Wang D, Wang CL, Xie WJ, Zhu YF, Chen XW. Transcriptome characterization of HPG axis from Chinese sea perch Lateolabrax maculatus. J Fish Biol 2017; 91:1407-1418. [PMID: 28913865 DOI: 10.1111/jfb.13459] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Accepted: 08/15/2017] [Indexed: 06/07/2023]
Abstract
Here the transcriptome and differential gene expression in the adult brain and gonads of the Chinese sea perch Lateolabrax maculatus were reported. A total of 78 256 909 clean reads were generated from the adult brain, ovary and testis by using the Illumina HiSeq2000 platform and assembled into 274 909 contigs. A total of 31 683 unigenes were annotated based on sequence similarity and 20 702 unigenes were found to exhibit 8237 gene ontology terms and 3888 signal pathways. Transcripts of 26 623 unigenes were present in all of the tissues, whereas pairwise comparisons revealed that 671/367, 496/315 and 1668/580 unigenes were up-down regulated by at least two-fold between the brain and ovary, ovary and testis and brain and testis, respectively. Homology search led to the identification of reproduction-associated genes of the brain-gonad axis, including those involved in sex differentiation and maintenance. The data provided an integrated and comprehensive transcriptome resource for L. maculatus, which could be used for further research on hypothalamus-pituitary-gonad axis gene function, reproduction regulation and sex-biased gene expression.
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Affiliation(s)
- Z P Wang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - D Wang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - C L Wang
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - W J Xie
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Y F Zhu
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - X W Chen
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
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Li X, Wang D, Zhang ZJ, Zhu YF, Jia HY. 25 Culture environmental management innovation optimisation of enrichment factor lactobacillus acidophilus. J Investig Med 2017. [DOI: 10.1136/jim-2017-mebabstracts.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Zhu YF, Zhao N, Jin B, Zhao M, Jiang Q. High thermal stability of core–shell structures dominated by negative interface energy. Phys Chem Chem Phys 2017; 19:9253-9260. [DOI: 10.1039/c6cp08061h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Superheating of the low-Tm(∞)-core is induced by the negative interface energy, improving thermal expansion, atomic diffusion and heat capacity accordingly.
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Affiliation(s)
- Yong-Fu Zhu
- Key Laboratory of Automobile Materials
- Ministry of Education, and School of Materials Science and Engineering
- Jilin University
- Changchun 130022
- China
| | - Ning Zhao
- Key Laboratory of Automobile Materials
- Ministry of Education, and School of Materials Science and Engineering
- Jilin University
- Changchun 130022
- China
| | - Bo Jin
- Key Laboratory of Automobile Materials
- Ministry of Education, and School of Materials Science and Engineering
- Jilin University
- Changchun 130022
- China
| | - Ming Zhao
- Key Laboratory of Automobile Materials
- Ministry of Education, and School of Materials Science and Engineering
- Jilin University
- Changchun 130022
- China
| | - Qing Jiang
- Key Laboratory of Automobile Materials
- Ministry of Education, and School of Materials Science and Engineering
- Jilin University
- Changchun 130022
- China
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31
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Zhu YF, Wang XY, Parsons SP, Huizinga JD. Stimulus-induced pacemaker activity in interstitial cells of Cajal associated with the deep muscular plexus of the small intestine. Neurogastroenterol Motil 2016; 28:1064-74. [PMID: 26968691 DOI: 10.1111/nmo.12808] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 02/01/2016] [Indexed: 02/08/2023]
Abstract
BACKGROUND The ICC-DMP have been proposed to generate stimulus-dependent pacemaker activity, rhythmic transient depolarizations, that take part in orchestrating segmentation and clustered propulsive motor patterns in the small intestine. However, little is known about the fundamental properties of ICC-DMP. METHODS This study was undertaken to increase our understanding of intrinsic properties of the ICC-DMP through calcium imaging and intracellular electrical recordings. KEY RESULTS Without stimulation, most ICC-DMP were quiescent. In some preparations ICC-DMP generated rhythmic low-frequency calcium oscillations (<10 cpm) with or without high frequency activity superimposed (>35 cpm). Immunohistochemistry proved the existence of NK1R on the ICC-DMP and close contacts between ICC-DMP and substance P-positive nerves. Substance P (25 nM) induced low-frequency calcium oscillations that were synchronized across the ICC-DMP network. Substance P also induced low frequency rhythmic transient depolarizations (<10cpm) in circular muscle cells close to the ICC-DMP. An intracellular recording from a positively identified ICC-DMP showed rhythmic transient depolarizations with superimposed high frequency activity. To investigate if quiescent ICC-DMP were chronically inhibited by nitrergic activity, nNOS was inhibited, but without effect. CONCLUSIONS & INFERENCES Substance P changes non-synchronized high frequency flickering or quiescence in ICC-DMP into strong rhythmic calcium transients that are synchronized within the network; they are associated with rhythmic transient depolarizations within the same frequency range. We hypothesize that Substance P, released from nerves, can evoke rhythmicity in ICC-DMP, thereby providing it with potential pacemaker activity.
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Affiliation(s)
- Y F Zhu
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, ON, Canada
| | - X-Y Wang
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, ON, Canada
| | - S P Parsons
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, ON, Canada
| | - J D Huizinga
- Farncombe Family Digestive Health Research Institute, McMaster University, Hamilton, ON, Canada
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Li MM, Yang CC, Wang CC, Wen Z, Zhu YF, Zhao M, Li JC, Zheng WT, Lian JS, Jiang Q. Design of Hydrogen Storage Alloys/Nanoporous Metals Hybrid Electrodes for Nickel-Metal Hydride Batteries. Sci Rep 2016; 6:27601. [PMID: 27270184 PMCID: PMC4895169 DOI: 10.1038/srep27601] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 05/20/2016] [Indexed: 11/09/2022] Open
Abstract
Nickel metal hydride (Ni-MH) batteries have demonstrated key technology advantages for applications in new-energy vehicles, which play an important role in reducing greenhouse gas emissions and the world's dependence on fossil fuels. However, the poor high-rate dischargeability of the negative electrode materials-hydrogen storage alloys (HSAs) limits applications of Ni-MH batteries in high-power fields due to large polarization. Here we design a hybrid electrode by integrating HSAs with a current collector of three-dimensional bicontinuous nanoporous Ni. The electrode shows enhanced high-rate dischargeability with the capacity retention rate reaching 44.6% at a discharge current density of 3000 mA g(-1), which is 2.4 times that of bare HSAs (18.8%). Such a unique hybrid architecture not only enhances charge transfer between nanoporous Ni and HSAs, but also facilitates rapid diffusion of hydrogen atoms in HSAs. The developed HSAs/nanoporous metals hybrid structures exhibit great potential to be candidates as electrodes in high-performance Ni-MH batteries towards applications in new-energy vehicles.
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Affiliation(s)
- M M Li
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - C C Yang
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - C C Wang
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - Z Wen
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - Y F Zhu
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - M Zhao
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - J C Li
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - W T Zheng
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - J S Lian
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - Q Jiang
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
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Ma XG, Liu YF, Liu N, Ren JC, Xu GW, Chu L, Lv H, Huang CY, Zhu YF. Magnetic mediation effect of a C impurity in a Mn-doped Zn₁₂O₁₂ nanocluster: a case of multiple exchange interactions. J Phys Condens Matter 2015; 27:335301. [PMID: 26235128 DOI: 10.1088/0953-8984/27/33/335301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The stability and exchange interaction mechanism of a doped Zn12O12 cluster with Mn and C atoms were investigated by first-principles calculations. For the Mn-doped Zn12O12 cluster, it is identified that a superexchange interaction deriving the hybridization between the Mn 3d(2/x)-2/y and O 2p(xy) orbitals dominates the Mn(↑)-Mn(↓) antiferromagnetic coupling, although a direct exchange interaction deriving the Mn-Mn bonding is also found. In order to turn the Mn spin state in the Mn-doped Zn12O12 cluster, C doping is undertaken to change the magnetic interactions of these impurities. It is proved that the C incorporation into the Mn-doped Zn12O12 cluster destroys the short-ranged antiferromagnetic coupling, where multiple exchange interactions take over, including the direct exchange interaction and the kinetic p-d exchange interaction partially due to the geometric distortion and surface effect with dangling bonds (sp(2)-like hybrids). It is concluded that the kinetic p-d exchange interaction plays a dominant role in Mn/C-doped Zn12O12 clusters.
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Affiliation(s)
- X G Ma
- School of Science, Hubei University of Technology, Wuhan 430068, People's Republic of China. Hubei Collaborative Innovation Center for High-efficiency Utilization of Solar Energy, Hubei University of Technology, Wuhan, 430068, People's Republic of China
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Han GF, Xiao BB, Lang XY, Wen Z, Zhu YF, Zhao M, Li JC, Jiang Q. Self-grown Ni(OH)(2) layer on bimodal nanoporous AuNi alloys for enhanced electrocatalytic activity and stability. ACS Appl Mater Interfaces 2014; 6:16966-16973. [PMID: 25216380 DOI: 10.1021/am504541a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Au nanostructures as catalysts toward electrooxidation of small molecules generally suffer from ultralow surface adsorption capability and stability. Here, we report Ni(OH)2 layer decorated nanoporous (NP) AuNi alloys with a three-dimensional and bimodal porous architecture, which are facilely fabricated by a combination of chemical dealloying and in situ surface segregation, for the enhanced electrocatalytic performance in biosensors. As a result of the self-grown Ni(OH)2 on the AuNi alloys with a coherent interface, which not only enhances adsorption energy of Au and electron transfer of AuNi/Ni(OH)2 but also prohibits the surface diffusion of Au atoms, the NP composites are enlisted to exhibit significant enhancement in both electrocatalytic activity and stability toward glucose electrooxidation. The highly reliable glucose biosensing with exceptional reproducibility and selectivity as well as quick response makes it a promising candidate as electrode materials for the application in nonenzymatic glucose biosensors.
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Affiliation(s)
- Gao-Feng Han
- Key Laboratory of Automobile Materials, Ministry of Education, and School of Materials Science and Engineering, Jilin University , Changchun 130022, China
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35
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Hou C, Lang XY, Han GF, Li YQ, Zhao L, Wen Z, Zhu YF, Zhao M, Li JC, Lian JS, Jiang Q. Integrated solid/nanoporous copper/oxide hybrid bulk electrodes for high-performance lithium-ion batteries. Sci Rep 2013; 3:2878. [PMID: 24096928 PMCID: PMC3791456 DOI: 10.1038/srep02878] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Accepted: 09/20/2013] [Indexed: 11/24/2022] Open
Abstract
Nanoarchitectured electroactive materials can boost rates of Li insertion/extraction, showing genuine potential to increase power output of Li-ion batteries. However, electrodes assembled with low-dimensional nanostructured transition metal oxides by conventional approach suffer from dramatic reductions in energy capacities owing to sluggish ion and electron transport kinetics. Here we report that flexible bulk electrodes, made of three-dimensional bicontinuous nanoporous Cu/MnO2 hybrid and seamlessly integrated with Cu solid current collector, substantially optimizes Li storage behavior of the constituent MnO2. As a result of the unique integration of solid/nanoporous hybrid architecture that simultaneously enhances the electron transport of MnO2, facilitates fast ion diffusion and accommodates large volume changes on Li insertion/extraction of MnO2, the supported MnO2 exhibits a stable capacity of as high as ~1100 mA h g(-1) for 1000 cycles, and ultrahigh charge/discharge rates. It makes the environmentally friendly and low-cost electrode as a promising anode for high-performance Li-ion battery applications.
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Affiliation(s)
- Chao Hou
- These authors contributed equally to this work
| | | | - Gao-Feng Han
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - Ying-Qi Li
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - Lei Zhao
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - Zi Wen
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - Yong-Fu Zhu
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - Ming Zhao
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - Jian-Chen Li
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - Jian-She Lian
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
| | - Qing Jiang
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
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Jiang Q, Zhu YF, Zhao M. Copper metallization for current very large scale integration. Recent Pat Nanotechnol 2011; 5:106-137. [PMID: 21529334 DOI: 10.2174/187221011795909152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Accepted: 04/26/2011] [Indexed: 05/30/2023]
Abstract
As silicon technology scaling progresses to the 32 nm node or even further, the design on the propagation of electromagnetic signals becomes increasingly appealing due to their unyielding constraints on interconnect delay. Because of its high conductivity and electromigration resistance, Cu is now the interconnect materials in current VLSI. To ensure the signal propagation via the Cu interconnects upon the increasingly reduction in the interconnect width, related issues on Cu interconnects, such as electron scattering at surfaces and grain boundaries, electromigration failure and surface oxidation, still need to be further understood and addressed. Besides this, the performance of low-k dielectrics and reliable barrier structures, which are also much important among the device parts, are required to be further improved to minimize the signal delay and to prevent penetration of different materials, respectively. On the basis of the paper published at Recent Patent on Nanotechnology 2007; 1: 193-209, this review will focus on recent patents and some studies on Cu metallization including Cu interconnect wires, low-k dielectrics and related barrier materials as well as manufacturing techniques in VLSI, which are one of the most essential concerns in microelectronic industry and decide further development of VLSI. This review will benefit for the design of the Cu metallization in the current VLSI.
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Affiliation(s)
- Q Jiang
- Key Laboratory of Automobile Materials, Ministry of Education and Department of Materials Science and Engineering, Jilin University, Changchun 130022, China.
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Zhu YF, Lang XY, Zheng WT, Jiang Q. Electron scattering and electrical conductance in polycrystalline metallic films and wires: impact of grain boundary scattering related to melting point. ACS Nano 2010; 4:3781-3788. [PMID: 20557119 DOI: 10.1021/nn101014k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
For electrical conductance in polycrystalline metallic films and wires, the reflection coefficient of electrons at grain boundaries is explored and found to be proportional to the square root of the melting points of metals. As validated by available experimental results, this exploration enables classical models to take an essential role in theoretically predicting the electrical conductance of low-dimensional metals. One thus sees that the mechanism dominating the suppression of electrical conductance is transformed from the surface scattering into the grain boundary scattering as the ratio of film thickness (or wire diameter) to grain size rises. Furthermore, the impact of grain boundary scattering becomes less important for metals with lower melting points.
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Affiliation(s)
- Y F Zhu
- Key Laboratory of Automobile Materials, Ministry of Education, and School of Materials Science and Engineering, Jilin University, Changchun 130022, China
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Li HF, Han W, Zhu YF, Shu JT, Zhang XY, Chen KW. Analysis of genetic structure and relationship among nine indigenous Chinese chicken populations by the Structure program. J Genet 2009; 88:197-203. [PMID: 19700858 DOI: 10.1007/s12041-009-0028-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The multi-locus model-based clustering method Structure program was used to infer the genetic structure of nine indigenous Chinese chicken (Gallus gallus) populations based on 16 microsatellite markers. Twenty runs were carried out at each chosen value of predefined cluster numbers (K) under admixture model. The Structure program properly inferred the presence of genetic structure with 0.999 probabilities. The genetic structure not only indicated that the nine kinds of chicken populations were defined actually by their locations, phenotypes or culture, but also reflected the underlying genetic variations. At K = 2, nine chicken populations were divided into two main clusters, one light-body type, including Chahua chicken (CHA), Tibet chicken (TIB), Xianju chicken (XIA), Gushi chicken (GUS) and Baier chicken (BAI); and the other heavy-body type, including Beijing You chicken (YOU), Xiaoshan chicken (XIA), Luyuan chicken (LUY) and Dagu chicken (DAG). GUS and DAG were divided into independent clusters respectively when K equaled 4, 5, or 6. XIA and BIA chicken, XIA and LUY chicken, TIB and CHA chicken still clustered together when K equaled 6, 7, and 8, respectively. These clustering results were consistent with the breeding directions of the nine chicken populations. The Structure program also identified migrants or admixed individuals. The admixed individuals were distributed in all the nine chicken populations, while migrants were only distributed in TIB, XIA and LUY populations. These results indicated that the clustering analysis using the Structure program might provide an accurate representation of the genetic relationship among the breeds.
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Affiliation(s)
- H F Li
- Institute of Poultry Science, Chinese Academy of Agricultural Science, Yangzhou 225003, People's Republic of China.
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Fan DH, Zhu YF, Shen WZ. Synthesis of hierarchical pure ZnO nanostructures with controllable morphology. J Nanosci Nanotechnol 2008; 8:6325-6331. [PMID: 19205201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Hierarchical pure ZnO nanostructures with controllable morphology were synthesized by two-step oxygen-controlled thermal evaporation method without any catalyst. Zn nanowires with little oxidation were deposited firstly on Si substrates located at the low temperature area at step one. The morphology of hierarchical ZnO nanostructures can be effectively modulated at step two by oxygen flow rate, taking advantage of the controllable oxidation rate of Zn and concentration of ZnO(x) under various oxygen supplies. Transmission electron microscope images and corresponding selected area electron diffraction patterns suggest that low oxygen supplementation causes the epitaxial growth of nanorods from the surface of the Zn nanowire, while high oxygen flow rate will lead to the preferential growth of nanorods along the [001] orientation. Room-temperature photoluminescence measurements demonstrate that the variety of nanostructures can cause the variation of the ultraviolet to green peak intensity ratio, suggesting that the controlled morphologies can be used to modulate the optical properties of ZnO nanostructures.
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Affiliation(s)
- D H Fan
- Laboratory of Condensed Matter Spectroscopy and Opto-Electronic Physics, Department of Physics, Shanghai Jiao Tong University, 1954 Hua Shan Road, Shanghai 200030, China
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Zhu YF, Fan DH, Shen WZ. Chemical conversion synthesis and optical properties of metal sulfide hollow microspheres. Langmuir 2008; 24:11131-11136. [PMID: 18720954 DOI: 10.1021/la801523h] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A facile chemical conversion method has been demonstrated to prepare various metal sulfide hollow microspheres. The present strategy utilizes the large difference in solubility between ZnS and other metal sulfides (Ag2S, PbS, CuS, Cu2S, Bi2S3, and Sb2S3) for the effective transformation and shows mild growth conditions and good reproducibility. The morphology, structure, and composition of the yielded hollow nanostructures have been confirmed by transmission electron microscopy, energy-dispersive X-ray analysis, and X-ray diffraction measurements. The optical properties of the metal sulfide hollow microspheres have been systematically investigated by absorption, micro-Raman, and photoluminescence spectroscopy. The results demonstrate that these metal sulfide hollow microspheres possess good optical quality with tunable band gaps and luminescence properties, which indicate their broad potential applications. This simple chemical conversion technique can be further extended to the synthesis of other semiconductors with various morphologies.
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Affiliation(s)
- Y F Zhu
- Laboratory of Condensed Matter Spectroscopy and Opto-Electronic Physics, Department of Physics, Shanghai Jiao Tong University, Shanghai, People's Republic of China
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Abstract
A simple model is established for solidification of a nanoconfined liquid under nonequilibrium conditions. In terms of this model, the nature of solidification is the conjunct finite size and interface effects, which is directly related to the cooling rate or the relaxation time of the undercooled liquid. The model predictions are consistent with available experimental results.
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Affiliation(s)
- X Y Lang
- Key Laboratory of Automobile Materials (Jilin University), Ministry of Education, and Department of Materials Science and Engineering, Jilin University, Changchun 130022, China
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Abstract
INTRODUCTION The aim of this study was to develop a rat model of chronic irreversible rejection, which is a major causes of late graft loss and retransplantation after orthotopic liver allotransplantation. METHODS Allogeneic liver transplantation was performed in a rat combination of Dark Agouti (DA) to Brown Norway (BN). Group A was left without treatment, group B received cyclosporine' (CsA; 1 mg/kg/d) and group C, CsA (4 mg/kg/d). Animals were followed for 6 months. Liver tissue was harvested to construct a time course of histological changes after liver transplantation using histopathological and morphometric techniques. We compared the total histological score of rejection activity index and survival rates. RESULTS In untreated animals, irreversible acute rejection developed, all animals died within 15 days. In the low-dose CsA group, all animals that survived more than 30 days developed moderate to severe manifestations of chronic liver rejection, with graft infiltration, ductular damage or proliferation, obliterative arteriopathy, and liver fibrosis. No apparent histological alterations were observed in group C. Survival analysis showed significant differences between the three groups. CONCLUSIONS In the rat strain combination of DA --> BN with low-dose immunosuppression, early mild inflammation was followed by the development of chronic rejection.
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Affiliation(s)
- L H Gao
- Dept of Hepatobiliary and Pancreatic Surgery, Key Lab of Combined Multi-Organ Transplantation, Ministry of Public Health, First Affiliated Hospital, Zhejiang University School of Medicine, Qingchun Road, 79 Hangzhou 310003, People's Republic of China
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Jia ZJ, Pan DJ, Fu YG, Chen WM, Liu ZH, Lin JH, Zhu YF, Chen RX, Fu ZY, Zhou DM, Xu AL. [HLA-DRB1 gene polymorphism of Naxi ethnic group of Yunnan Province, China and its ethnological evolution analysis]. Yi Chuan Xue Bao 2002; 28:1107-15. [PMID: 11797339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
The HLA-DRB1 gene polymorphism of Naxi ethnic group of Yunnan Province, China was investigated for the first time using high resolution PCR-SBT method, which is based on sequences of HLA-DRB1 Intron 1 and Intron 2 with our improvement. From 60 individuals of Naxi 37 DRB1 alleles were detected. The distribution of allele frequencies is evenly spread for most of alleles detected in Naxi. However, the gene frequency for HLA-DRB1 * 12021 is 17.50%. The other common alleles (> 5%) were HLA-DRB1 * 1404(7.50%), 1504(5.83%), 04051(5.83%), 08032(5.83%), 09012(5%), 03011(5%), and they covered 35% of the total alleles detected from Naxi, and 52.49% after adding the frequency of HLA-DRB1 * 12021. HLA-DRB1 * 0305, 0438, 1123, 1132, 1310, 0812 were detected in Chinese for the first time, and were very rare in other ethnic groups worldwide. Using the HLA-DRB1 gene frequencies of various ethnic groups, we constructed the phylogenetic tree by Fitch-Margoliash and Least-Squares Distance Methods and Cavalli-Sforza's chord measure of genetic distance. In our dendrogram, the South China populations were clustered together, and Siberian, Japanese and Minority of North China were clustered together, in which two big clusters we thought represented the ancient Southern and Northern Mongolian. Our results showed Naxi was clustered with Lahu and Yao ethnic groups, which were in the cluster of South China population. Obviously Naxi belongs to the South China ethnic groups and can't trace its origin from northern ethnic groups with the HLA-DRB1 genetic data. But based on Naxi's historical folklore, it was down to Southern China from Northwest China. The preliminary analysis about its origin conundrum was discussed in this paper based on our genetic data in relationship with its history and ethnology studies.
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Affiliation(s)
- Z J Jia
- School of Life Science, Zhongshan University, Guangzhou 510275, China
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44
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Qian DS, Zhu YF, Zhu Q. [Effect of alcohol extract of Cornus officinalis Sieb. et Zucc on GLUT4 expression in skeletal muscle in type 2 (non-insulin-dependent) diabetic mellitus rats]. Zhongguo Zhong Yao Za Zhi 2001; 26:859-62. [PMID: 12776340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
OBJECTIVE Based on its effects of decreasing postprandial plasma glucose and increasing insulin level in non-insulin-dependent diabetic mellitus (NIDDM) rats, we studied the effects of Alcohol extract of Cornus officinalis Sieb. et Zucc on the GLUT4 expression in NIDDM model rats. METHOD The rat model of NIDDM was made. The animals were divided into three groups(six for each group): group I: control; group II: NIDDM model; group III: NIDDM model + Cornus officinalis Sieb. et Zucc. The drug was given orally to animals one time a day, uninterrupted for a month. The GLUT4 mRNA and its protein expression in skeletal muscle were observed with Northern blot and Western blot method, respectively. RESULT The GLUT4 mRNA expression in skeletal muscle was decreased remarkably in NIDDM rats (P < 0.01, compared to control group). Alcohol extract of Cornus officinalis Sieb. et Zucc increased GLUT4 mRNA expression in NIDDM rats(P < 0.01), compared to NIDDM model group). The result of GLUT4 protein expression was similar to GLUT4 mRNA expression. CONCLUSION This experiment demonstrated that alcohol extract of Cornus officinalis Sieb. et Zucc can increase GLUT4 mRNA and its protein expression in NIDDM rats through promoting proliferation of islet and increasing postprandial secretion of insulin and therefore accelerate glucose transport.
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Affiliation(s)
- D S Qian
- Department of Pharmacology, Nantong Medical College, Nantong, 226001 Jiangsu, China
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Chen C, Zhu YF, Liu XJ, Lu ZX, Xie Q, Ling N. Discovery of a series of nonpeptide small molecules that inhibit the binding of insulin-like growth factor (IGF) to IGF-binding proteins. J Med Chem 2001; 44:4001-10. [PMID: 11689087 DOI: 10.1021/jm010304b] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Insulin-like growth factors (IGF-I and II) play an important role in metabolic and mitogenic activities through stimulation of the IGF-I receptor on the cell surface. Although the concentration of IGF in blood and cerebrospinal fluid is quite high (>100 nM), this large pool of IGF is biologically inactive because of its association with six distinct binding proteins, which form high-affinity complexes with IGF. Thus, inhibitors of IGF-binding proteins (IGFBPs), especially IGFBP-3, could potentially alter the distribution between the "free" and "bound" forms of IGF and thereby elevate biologically active IGF-I to exert a beneficial effect on those patients with diseases that respond to the application of exogenous IGF-I. Whereas IGF-I peptide variants, which bind to IGFBPs but not the IGF-I receptor, have been shown to be potent IGF/IGFBP inhibitors, small molecule nonpeptide IGF/IGFBP inhibitors have the potential advantages of oral bioavailability and flexible dosing regimen. Here we report the discovery of several isoquinoline analogues, exemplified by 1 and 2, which bind IGFBP-3 as well as other IGFBPs at low nanomolar concentrations. More importantly, both compounds were shown to be able to release biologically active IGF-I from the IGF-I/IGFBP-3 complex. These results point to the feasibility of developing orally active therapeutics to treat IGF-responsive diseases by optimization of the lead molecules 1 and 2.
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Affiliation(s)
- C Chen
- Neurocrine Biosciences, Inc., 10555 Science Center Drive, San Diego, California 92121, USA.
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Liu XJ, Xie Q, Zhu YF, Chen C, Ling N. Identification of a nonpeptide ligand that releases bioactive insulin-like growth factor-I from its binding protein complex. J Biol Chem 2001; 276:32419-22. [PMID: 11445558 DOI: 10.1074/jbc.c100299200] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Insulin-like growth factor-I (IGF-I) has both metabolic and mitogenic activities mediated through interaction with the type 1 IGF receptor. The circulation of IGF-I in blood and interstitial fluid is not free but bound mostly to a family of six high affinity IGF-binding proteins, which form stable complexes with IGF and neutralize its bioactivity. Therefore, displacement of this large pool of endogenous IGF from the binding proteins could elevate "free" IGF levels to elicit beneficial effects in diabetes and other IGF-responsive diseases comparable with those produced by administration of exogenous IGF-I. We report here the identification of a nonpeptide ligand NBI-31772, which displaces IGF-I from all six IGF-binding proteins at low nanomolar concentrations from screening of the in-house chemical libraries. Furthermore, the released free IGF-I was shown to be biologically active in an in vitro bioassay. Thus, NBI-31772 could serve as a valuable lead molecule for the design of novel therapeutics to treat diabetes and other IGF-responsive diseases.
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Affiliation(s)
- X J Liu
- Department of Peptide Chemistry, Neurocrine Biosciences, Inc., San Diego, California 92121, USA
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Li HO, Zhu YF, Asakawa M, Kuma H, Hirata T, Ueda Y, Lee YS, Fukumura M, Iida A, Kato A, Nagai Y, Hasegawa M. A cytoplasmic RNA vector derived from nontransmissible Sendai virus with efficient gene transfer and expression. J Virol 2000; 74:6564-9. [PMID: 10864670 PMCID: PMC112166 DOI: 10.1128/jvi.74.14.6564-6569.2000] [Citation(s) in RCA: 185] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
We have recovered a virion from defective cDNA of Sendai virus (SeV) that is capable of self-replication but incapable of transmissible-virion production. This virion delivers and expresses foreign genes in infected cells, and this is the first report of a gene expression vector derived from a defective viral genome of the Paramyxoviridae. First, functional ribonucleoprotein complexes (RNPs) were recovered from SeV cloned cDNA defective in the F (envelope fusion protein) gene, in the presence of plasmids expressing nucleocapsid protein and viral RNA polymerase. Then the RNPs were transfected to the cells inducibly expressing F protein. Virion-like particles thus obtained had a titer of 0.5 x 10(8) to 1. 0 x 10(8) cell infectious units/ml and contained F-defective RNA genome. This defective vector amplified specifically in an F-expressing packaging cell line in a trypsin-dependent manner but did not spread to F-nonexpressing cells. This vector infected and expressed an enhanced green fluorescent protein reporter gene in various types of animal and human cells, including nondividing cells, with high efficiency. These results suggest that this vector has great potential for use in human gene therapy and vaccine delivery systems.
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Affiliation(s)
- H O Li
- DNAVEC Research Inc., Tsukuba-shi, Ibaraki 305-0856, Japan
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Affiliation(s)
- C Chen
- Department of Medicinal Chemistry, Neurocrine Biosciences, Inc., San Diego, California 92121, USA
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Millar RP, Zhu YF, Chen C, Struthers RS. Progress towards the development of non-peptide orally-active gonadotropin-releasing hormone (GnRH) antagonists: therapeutic implications. Br Med Bull 2000; 56:761-72. [PMID: 11255560 DOI: 10.1258/0007142001903346] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Gonadotropin-releasing hormone (GnRH) is a decapeptide (pGlu-His-Trp-Ser-Tyr-Gly-Leu-Arg-Pro-Gly.NH2) which is produced from a precursor polypeptide in hypothalamic neurons and secreted in a pulsatile fashion to stimulate the secretion of LH and FSH via its interaction with a cognate receptor on gonadotropes. Low doses of the native peptide delivered in a pulsatile manner to mimic that found in the hypothalamic portal vessels restore fertility in hypogonadal patients, and are also effective in treating cryptorchidism and delayed puberty. Administration of high doses of GnRH, or agonist analogues, causes desensitization of the gonadotrope with consequent decline in gonadal gametogenesis and steroid and peptide hormone synthesis. This phenomenon finds extensive therapeutic application in clinical medicine in a wide spectrum of disease (Table 1). In addition, GnRH analogues have promise as new generation male and female contraceptives in conjunction with steroid hormone replacement. GnRH antagonists inhibit the reproductive system through competition with endogenous GnRH for the receptor and, in view of their rapid effects, are being increasingly used for the above mentioned applications. The peptide agonists and antagonists currently available require parenteral administration, typically in the form of long-acting depots. A new generation of non-peptide GnRH antagonists are beginning to emerge which should allow oral administration and, therefore, may provide greater flexibility of dosing, lower costs and increased patient acceptance.
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Affiliation(s)
- R P Millar
- MRC Human Reproductive Sciences Unit, Centre for Reproductive Biology, 37 Chalmers Street, Edinburgh EH3 9ET, UK
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Abstract
To evaluate Fas/FasL expression in hepatitis B virus-related chronic liver disease, liver biopsies from 44 such cases were studied immunohistochemically. FasL was detected in the infiltrating lymphocytes and both FasL and Fas were found in the hepatocytes. The Fas and FasL-positive cells were mostly found at the advancing edges of interphase hepatitis, and Fas/FasL expression was closely correlated with the inflammatory activity. Unexpectedly, FasL was also expressed in liver cirrhotic nodules, particularly in those with hepatocellular carcinoma with or without inflammation. These results suggest that the factors which induce hepatocyte transformation might also trigger FasL expression and promote FasL/Fas-mediated apoptosis.
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Affiliation(s)
- K X Luo
- Nanfang Hospital, Guangzhou, China
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