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Cui AL, Xia BC, Zhu Z, Xie ZB, Sun LW, Xu J, Xu J, Li Z, Zhao LQ, Long XR, Yu DS, Zhu B, Zhang F, Mu M, Xie H, Cai L, Zhu Y, Tian XL, Wang B, Gao ZG, Liu XQ, Ren BZ, Han GY, Hu KX, Zhang Y. [Epidemiological characteristics of human respiratory syncytial virus (HRSV) among acute respiratory infection (ARI) cases in 16 provinces of China from 2009 to 2023]. Zhonghua Yu Fang Yi Xue Za Zhi 2024; 58:1-7. [PMID: 38403282 DOI: 10.3760/cma.j.cn112150-20231213-00440] [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: 02/27/2024]
Abstract
Objective: To understand the epidemiological characteristics of human respiratory syncytial virus (HRSV) among acute respiratory infection (ARI) cases in 16 provinces of China from 2009 to 2023. Methods: The data of this study were collected from the ARI surveillance data from 16 provinces in China from 2009 to 2023, with a total of 28 278 ARI cases included in the study. The clinical specimens from ARI cases were screened for HRSV nucleic acid from 2009 to 2023, and differences in virus detection rates among cases of different age groups, regions, and months were analyzed. Results: A total of 28 278 ARI cases were enrolled from January 2009 to September 2023. The age of the cases ranged from<1 month to 112 years, and the age M (Q1, Q3) was 3 years (1 year, 9 years). Among them, 3 062 cases were positive for HRSV nucleic acid, with a total detection rate of 10.83%. From 2009 to 2019, the detection rate of HRSV was 9.33%, and the virus was mainly prevalent in winter and spring. During the Corona Virus Disease 2019 (COVID-19) pandemic, the detection rate of HRSV fluctuated between 6.32% and 18.67%. There was no traditional winter epidemic peak of HRSV from the end of 2022 to the beginning of 2023, and an anti-seasonal epidemic of HRSV occurred from April to May 2023. About 87.95% (2 693/3 062) of positive cases were children under 5 years old, and the difference in the detection rate of HRSV among different age groups was statistically significant (P<0.001), showing a decreasing trend of HRSV detection rate with the increase of age (P<0.001). Among them, the HRSV detection rate (25.69%) was highest in children under 6 months. Compared with 2009-2019, the ranking of HRSV detection rates in different age groups changed from high to low between 2020 and 2023, with the age M (Q1, Q3) of HRSV positive cases increasing from 1 year (6 months, 3 years) to 2 years (11 months, 3 years). Conclusion: Through 15 years of continuous HRSV surveillance analysis, children under 5 years old, especially infants under 6 months old, are the main high-risk population for HRSV infection. During the COVID-19 pandemic, the prevalence and patterns of HRSV in China have changed.
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Affiliation(s)
- A L Cui
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases(NITFID)/NHC Key Laboratory of Medical Virology and Viral Diseases/National Institute for Viral Disease Control and Prevention,Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - B C Xia
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases(NITFID)/NHC Key Laboratory of Medical Virology and Viral Diseases/National Institute for Viral Disease Control and Prevention,Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z Zhu
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases(NITFID)/NHC Key Laboratory of Medical Virology and Viral Diseases/National Institute for Viral Disease Control and Prevention,Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z B Xie
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases(NITFID)/NHC Key Laboratory of Medical Virology and Viral Diseases/National Institute for Viral Disease Control and Prevention,Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - L W Sun
- Precision Medicine Research Center, Children's Hospital of Changchun, Changchun 130061, China
| | - J Xu
- Institute of Expanded Immunization Program, Henan Provincial Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - J Xu
- National institute for viral disease control and prevention, Shaanxi provincial center for disease control and prevention, Xi'an 710054, China
| | - Z Li
- Institute for Communicable Disease Control and Prevention, Shandong Center for Disease Control and Prevention, Jinan 250014, China
| | - L Q Zhao
- Laboratory of Virology, Beijing Key Laboratory of Etiology of Viral Diseases in Children, Capital Institute of Pediatrics, Beijing 100020, China
| | - X R Long
- Department of Infectious Diseases, Children's Hospital Affiliated to Chongqing Medical University, Chongqing 400014, China
| | - D S Yu
- Institute of Pathogen testing, Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - B Zhu
- Virus Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510120, China
| | - F Zhang
- aboratory of Viral diseases, Qingdao Municipal Centre for Disease Control and Prevention, Qingdao Institute of Prevention Medicine, Qingdao 266000, China
| | - M Mu
- School of Public Health, Anhui University of Science and Technology, Huainan 232001, China
| | - H Xie
- Institute for Immunization and Prevention, Beijing Center for Disease Prevention and Control, Beijing Academy for Preventive Medicine, Beijing Institute of Tuberculosis Control Research and Prevention, Beijing 100013, China
| | - L Cai
- Hunan Provincial Center for Disease Control and Prevention, Changsha 410005, China
| | - Y Zhu
- Laboratory of Infection and Virology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - X L Tian
- Department of Immunization Program, Neimeng Provincial Center for Disease Control and Prevention, Huhehaote 010000, China
| | - B Wang
- Department of Infectious Diseases, Shenyang Prefecture Center for Disease Control and Prevention, Shenyang 110000, China
| | - Z G Gao
- Institute for infectious disease prevention and treatment, Xinjiang Center for Disease Control and Prevention, Wulumuqi 830002, China
| | - X Q Liu
- Laboratory of Viral Infectious Disease, Key Laboratory of Important and Emerging Viral Infectious Diseases of Jiangxi Health Commission, Jiangxi Provincial Center for Disease Control and Prevention, Nanchang 330029, China
| | - B Z Ren
- Division of Diseases Detection, Shanxi Provincial Center for Disease Control and Prevention, Taiyuan 030012, China
| | - G Y Han
- Institute for Viral Disease Control and Prevention, Hebei Provincial Center for Disease Control and Prevention, Shijiazhuang 050021, China
| | - K X Hu
- Institute of Health Inspection and Quarantine, Chinese Academy of Inspection and Quarantine, Beijing 100123, China
| | - Y Zhang
- National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases(NITFID)/NHC Key Laboratory of Medical Virology and Viral Diseases/National Institute for Viral Disease Control and Prevention,Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Chang CW, Bohannon D, Tian Z, Wang Y, McDonald MW, Yu DS, Liu T, Zhou J, Yang X. Estimating Potential Benefits of Online Adaptive Proton Therapy for Head-and-Neck Cancer: A Retrospective Study. Int J Radiat Oncol Biol Phys 2023; 117:e649. [PMID: 37785928 DOI: 10.1016/j.ijrobp.2023.06.2069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Proton therapy is highly sensitive to anatomical changes and setup variations in head-and-neck (HN) treatments. To address this issue, proton centers often acquire patient CT images weekly to monitor patient anatomical changes during the treatment course and perform offline plan adaptation when needed. However, offline adaptation cannot fully account for daily setup variations or the anatomical changes occurring with high frequency. There are a few groups endeavoring to develop advanced technologies to enable online adaptive proton therapy (APT). However, the necessity of online APT remains controversial, as it is unknown that whether online APT will significantly improve treatment quality and outcomes compared to offline APT. The purpose of this study is to estimate the clinical potential of online APT in the management of HN cancers in relation to the current offline APT. MATERIALS/METHODS Our retrospective study was conducted with four HN patients (35 fractions per patient), who had been treated with intensity modulated proton therapy and had offline adaptation once or twice during their treatment courses. Synthetic CT (sCT) images were generated from 140 daily CBCT images for us to recalculate the dose of the treatment plan in patient's actual treatment anatomy for each treatment fraction and adapt the plan when warranted. These adaptations were assumed to be performed online before treatment delivery to mimic an online APT course. Accumulative doses were calculated for both courses using the CBCT-based sCT images of every fraction for us to compare the target coverage, organ at risk (OAR) sparing, tumor control probability (TCP) and normal tissue complication probability (NTCP). An in-house script was developed to semi-automate this process in a commercial treatment planning system to facilitate our study. RESULTS All patients would benefit from online APT to different extents. For the first patient, with OAR doses comparable to the actual offline course, the retrospective online APT course improved dose coverages of the three CTVs from 95.2%, 98.64% and 89.53% to 98.88%, 99.81%, 98.97%, which would lead to a 4.52% improvement in TCP. Similarly, online APT would yield a 2.66% improvement in TCP for the second patient. For the third patient, with comparable CTV dose coverages, the mean doses of right parotid and oral cavity were decreased from 29.52 Gy relative biological effectiveness (RBE) and 41.89 Gy RBE to 22.16 Gy RBE and 34.61 Gy RBE, leading to a reduce of 1.67% and 3.40% in NTCP. The mean dose of right parotid was decreased from 21.71 Gy RBE to 19.37 Gy RBE for the last patient, leading to a reduce of 0.73% in NTCP. CONCLUSION Our results showed that online APT could better maintain the treatment plan quality than offline APT for all the four patients, despite their significant anatomical changes. Future investigation will focus on collecting more patient data to obtain statistically significant results and help identify the patients to whom the online APT will be of most benefit.
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Affiliation(s)
| | - D Bohannon
- Department of Medical Physics, Georgia Institute of Technology, Atlanta, GA
| | | | - Y Wang
- Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - M W McDonald
- Winship Cancer Institute of Emory University, Department of Radiation Oncology, Atlanta, GA
| | - D S Yu
- Emory University, Atlanta, GA
| | - T Liu
- Icahn School of Medicine at Mount Sinai, New York, NY
| | - J Zhou
- Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - X Yang
- Department of Radiation Oncology, Emory University, Atlanta, GA
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Chen GT, Dong J, Yu DS, Yang XF, Yang W, Feng NH. [A simplified technique for reconstruction of vesicourethral support in laparoscopic radical prostatectomy improves immediate continence]. Zhonghua Nan Ke Xue 2021; 27:793-797. [PMID: 34914254] [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: 06/14/2023]
Abstract
OBJECTIVE To investigate the application of a simplified technique for reconstruction of vesicourethral support (RVUS) in laparoscopic radical prostatectomy (LRP). METHODS From January 2017 to August 2019, 122 patients with localized prostate cancer underwent extraperitoneal LRP, 65 with RVUS (the RVUS group) and 57 without RVUS (the non-RVUS group). We compared the operation time, intraoperative blood loss, rate of pelvic lymph node dissection, neurovascular bundle sparing, incidence of urethrovesical anastomotic urinary leakage (UVAUL), postoperative urinary continence, postoperative hospital stay, intraperitoneal drainage tube removal time, and urethral catheter removal time between the two groups of patients. RESULTS No statistically significant differences were observed between the two groups in the operation time, intraoperative blood loss, rate of pelvic lymph node dissection, neurovascular bundle sparing, or urethral catheter removal time (P > 0.05). The incidence rate of UVAUL was lower in the non-RVUS than in the RVUS group (8.8% vs 0%, P < 0.05), and so were the rates of postoperative urinary continence immediate after (0% vs 32.3%, P < 0.05) and at 1 month (38.6% vs 56.9%, P < 0.05), 3 months (59.6% vs 80%, P < 0.05), 6 months (78.9% vs 84.6%, P > 0.05) and 12 months after catheter removal (87.7% vs 92.3%, P > 0.05). The postoperative hospital stay was dramatically longer in the non-RVUS than in the RVUS group ([9.1 ± 4.3] vs [6.7 ± 1.8] d, P < 0.01) and so was the intraperitoneal drainage tube removal time ([6.9 ± 4.5] vs [4.8 ± 1.5] d, P < 0.01). CONCLUSIONS The simplified technique for reconstruction of vesicourethral support in laparoscopic radical prostatectomy improves early urinary continence, especially immediate continence, decreases the incidence rate of urethrovesical anastomotic urinary leakage, and shortens the intraperitoneal drainage tube removal time and postoperative hospital stay.?
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Affiliation(s)
- Guo-Tao Chen
- Wuxi No.2 People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu 214000, China
| | - Jian Dong
- Wuxi No.2 People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu 214000, China
| | - De-Shui Yu
- Wuxi No.2 People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu 214000, China
| | - Xian-Fa Yang
- Wuxi No.2 People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu 214000, China
| | - Wang Yang
- Wuxi No.2 People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu 214000, China
| | - Ning-Han Feng
- Wuxi No.2 People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu 214000, China
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Nie Y, Cai Y, Gao Y, Yu DS, Wang ZM, Liu XY, Huang B. Three new species of Conidiobolus sensu stricto from plant debris in eastern China. MycoKeys 2020; 73:133-149. [PMID: 33117082 PMCID: PMC7561611 DOI: 10.3897/mycokeys.73.56905] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 07/25/2020] [Accepted: 09/23/2020] [Indexed: 11/12/2022] Open
Abstract
The genus Conidiobolus Bref. is widely distributed and the Conidiobolus sensu lato contained three other genera, Capillidium, Microconidiobolus and Neoconidiobolus. A molecular phylogeny based on the nuclear large subunit of rDNA (nucLSU), the mitochondrial small subunit of rDNA (mtSSU) and the translation elongation factor 1-alpha gene (TEF1) revealed three novel species within the clade of Conidiobolus s.s., i.e. C. bifurcatus sp. nov., C. taihushanensis sp. nov. and C. variabilis sp. nov. These three species were isolated from plant debris in eastern China. Morphologically, C. bifurcatus sp. nov. is characterised by its secondary conidiophores often branched at the tip to form two short stipes each bearing a secondary conidium. C. taihushanensis sp. nov. is different from the others in its straight apical mycelia and the production of 2-5 conidia. C. variabilis sp. nov. is distinctive because of its various shapes of primary conidia. All these three new taxa are illustrated herein with an update key to the species of the genus Conidiobolus s.s.
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Affiliation(s)
- Yong Nie
- Anhui Provincial Key Laboratory for Microbial Pest Control, Anhui Agricultural University, Hefei 230036, China.,School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243002, China
| | - Yue Cai
- Department of Biological and Environmental Engineering, Hefei University, Hefei 230601, China
| | - Yang Gao
- Bioengineering and Technological Research Centre for Edible and Medicinal Fungi, Jiangxi Agricultural University, Nanchang, 330045, China
| | - De-Shui Yu
- Anhui Provincial Key Laboratory for Microbial Pest Control, Anhui Agricultural University, Hefei 230036, China
| | - Zi-Min Wang
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma'anshan 243002, China
| | - Xiao-Yong Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Bo Huang
- Anhui Provincial Key Laboratory for Microbial Pest Control, Anhui Agricultural University, Hefei 230036, China
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He ZK, Wang J, Sun H, Su J, Liu X, Gu WP, Yu DS, Luo LZ, Wang ML, Hu B, Hu WF, Tong J, Yang M, Wang SL, Wang CX, Wang YL, Zhan ZF, Duan R, Qin S, Jing HQ, Wang X. [Characteristics and diversity of infectious diarrheal caused by various pathogens]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:1328-1334. [PMID: 32867445 DOI: 10.3760/cma.j.cn112338-20200213-00093] [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 understand the characteristics and differences of diarrhea-related symptoms caused by different pathogens, and the clinical features of various pathogens causing diarrhea. Methods: Etiology surveillance program was conducted among 20 provinces of China from 2010 to 2016. The acute diarrhea outpatients were collected from clinics or hospitals. A questionnaire was used to survey demographics and clinical features. VFeces samples were taken for laboratory detection of 22 common diarrhea pathogens, to detect and analyze the clinical symptom pattern characteristics of the patient's. Results: A total of 38 950 outpatients were enrolled from 20 provinces of China. The positive rates of Rotavirus and Norovirus were the highest among the five diarrhea-causing viruses (Rotavirus: 18.29%, Norovirus: 13.06%). In the isolation and culture of 17 diarrhea-causing bacterial, Escherichia coli showed the highest positive rates (6.25%). The clinical features of bacterial diarrhea and viral diarrhea were mainly reflected in the results of fecal traits and routine examination, but pathogenic Vibrio infection was similar to viral diarrhea. Conclusion: Infectious diarrhea presents different characteristics due to various symptoms which can provide a basis for clinical diagnosis.
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Affiliation(s)
- Z K He
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - J Wang
- Dongcheng District Center for Disease Control and Prevention, Beijing 100009, China
| | - H Sun
- Dongcheng District Center for Disease Control and Prevention, Beijing 100009, China
| | - J Su
- Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - X Liu
- Ningxia Center for Disease Control and Prevention, Yinchuan 750004, China
| | - W P Gu
- Yunnan Center for Disease Control and Prevention, Kunming 650022, China
| | - D S Yu
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - L Z Luo
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - M L Wang
- Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention, Nanning 530028, China
| | - B Hu
- Shandong Center for Disease Control & Prevention, Jinan 250014, China
| | - W F Hu
- Anhui Provincial Center for Disease Control and Prevention, Hefei 230601, China
| | - J Tong
- Xuzhou Municipal Center for Disease Control and Prevention, Xuzhou 221006, China
| | - M Yang
- Jiangxi Province Center for Disease Control and Prevention, Nanchang 330029, China
| | - S L Wang
- Hainan Center for Disease Control and Prevention, Haikou 570203, China
| | - C X Wang
- Qing Hai Center for Diseases Prevention & Control, Xining 810000, China
| | - Y L Wang
- Tianjin Jizhou District Center for Disease Control and Prevention, Tianjin 301999, China
| | - Z F Zhan
- Hunan Provincial Center for Disease Control and Prevention, Changsha 410000, China
| | - R Duan
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - S Qin
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - H Q Jing
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - X Wang
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Li BD, He J, Li HY, Zhang H, Xu CS, Yu DS, Li JB, He J. [Analysis on genetic characteristics of H9N2 avian influenza virus isolated from human infection and external environment in Gansu province]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:1345-1351. [PMID: 32867448 DOI: 10.3760/cma.j.cn112338-20190712-00518] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the genomic characteristics of human infection with H9N2 avian influenza virus in Gansu province. Methods: The etiological analysis was conducted for human infection with H9N2 avian influenza virus detected in influenza like illness cases in northwestern China in 2016. Molecular bioinformatics Mega 7.0 software was used to analyze the full genomic sequences of the viral isolate. Results: The gene fragments of HA, NA, MP, NP, NS, PA, PB1 and PB2 of the isolate were highly similar (>90%) to those of H9N2 avian influenza virus strain isolated in external environment in Gansu from 2014 to 2019. The HA gene belonged to BJ/94-like branch, PB2 and MP belonged to G1/97-like branch, and the PB1, PA, NS, and NP genes belonged to F/98-like branch. MP and PB2 were closely related to H7N9, H10N8 and H5N6 viruses. Amino acid sequence alignment showed that the HA cleavage site was arranged in PSRSSR ↓ GLF, H183N and Q226L mutated which included 7 HA glycosylated sites; 62-64 sites of NA absented 3 amino acids (ITE); and M2-31N, NS1-42S, PA-356R, and PA-409N mutated. Conclusions: Apparently, this case of human infection with human infection with H9N2 avian influenza virus was an incidental. However, the isolates of H9N2 influenza virus in external environment of Gansu had a series of mammalian adaptive molecular markers, suggesting that the risk of human infection is higher. It is necessary to strengthen the surveillance by multi departments to deal with influenza pandemic.
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Affiliation(s)
- B D Li
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730020, China
| | - J He
- Anhui Provincial Center for Disease Control and Prevention, Hefei 230601, China
| | - H Y Li
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730020, China
| | - H Zhang
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730020, China
| | - C S Xu
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730020, China
| | - D S Yu
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730020, China
| | - J B Li
- Jiayuguan Center for Disease Control and Prevention, Jiayuguan 735100, China
| | - J He
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730020, China
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Bai SL, Wang JY, Zhou YQ, Yu DS, Gao XM, Li LL, Yang F. [Analysis of the first cluster of cases in a family of COVID-19 in Gansu Province]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:491-493. [PMID: 32388947 DOI: 10.3760/cma.j.cn112150-20200204-00065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The epidemiological history and clinical characteristics of 7 cases of COVID-19 and 1 case of close contact in the first family aggregation epidemic of COVID-19 in Gansu Province were analyzed. The first patient A developed on January 22, 2020, with a history of residence in Wuhan, and confirmed severe cases of NCP on January 24, 2020; patient B, on January 23, 2020, diagnosed on January 31, severe cases; patient C, asymptomatic, diagnosed on January 27; patient D, asymptomatic, diagnosed on January 27; patient E, on January 24, diagnosed on January 28; patient F, asymptomatic, diagnosed on January 31; Patient G was asymptomatic and was diagnosed on January 31. In close contact, H was asymptomatic, PCR test was negative and asymptomatic, and he was discharged early. Among the 7 patients, 1 case died of (B) aggravation, and the other patients' condition was effectively controlled after active treatment. Except for the discharged cases, 5 cases were positive for COVID-19 specific IgM antibody and 1 case was negative. In this clustering outbreak, 4 patients remained asymptomatic, but PCR and IgM antibodies were positive, indicating that asymptomatic patients may be the key point to control the epidemic. Specific IgM antibody screening for patients whose pharyngeal swab nucleic acid test is negative but with ground glass-like lung lesions is very important for early detection and early isolation.
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Affiliation(s)
- S L Bai
- Department of Infectious Disease, Lanzhou Municipality Pulmonary Hospital, Lanzhou 730046, China
| | - J Y Wang
- Department of Infectious Disease, Lanzhou Municipality Pulmonary Hospital, Lanzhou 730046, China
| | - Y Q Zhou
- Department of Infectious Disease, Lanzhou Municipality Pulmonary Hospital, Lanzhou 730046, China
| | - D S Yu
- Gansu Province Center for Disease Control and Prevention, Lanzhou 730000, China
| | - X M Gao
- Department of Infectious Disease, Lanzhou Municipality Pulmonary Hospital, Lanzhou 730046, China
| | - L L Li
- Department of Infectious Disease, Lanzhou Municipality Pulmonary Hospital, Lanzhou 730046, China
| | - F Yang
- Department of Infectious Disease, Lanzhou Municipality Pulmonary Hospital, Lanzhou 730046, China
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Gou FX, Zhang XS, Yao JX, Yu DS, Wei KF, Zhang H, Yang XT, Yang JJ, Liu HX, Cheng Y, Jiang XJ, Zheng YH, Wu B, Liu XF, Li H. [Epidemiological characteristics of COVID-19 in Gansu province]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:E032. [PMID: 32234127 DOI: 10.3760/cma.j.cn112338-20200229-00216] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the epidemiological characteristics of COVID-19 cases in different epidemic stages in Gansu province. Methods: Epidemiological investigation was conducted to collect the information of confirmed COVID-19 cases, including demographic, epidemiological and clinical information. Results: As of 25 February 2020, a total of 91 confirmed COVID-19 cases had been reported in Gansu. The epidemic of COVID-19 in Gansu can be divided as three different stages, i.e. imported case stage, imported-case plus indigenous case stage, and indigenous case stage. A total of 63 cases were clustered cases (69.23%), 3 cases were medical staff infected with non-occupational exposure. The initial symptoms included fever (54.95%, 50/91), cough (52.75%, 48/91), or fatigue (28.57%, 26/91), the proportion of each symptom showed a decreasing trend along with the three epidemic stages, but only the differences in proportions of fever (trend χ2=2.20, P<0.05) and fatigue (trend χ2=3.18, P<0.05) among the three epidemic stages were statistically significant. The cases with critical severe symptoms accounted for 42.85% (6/14), 23.73% (14/59) and 16.67% (3/18), respectively, in three epidemic stages, showed a decreasing trend (H=6.45, P<0.05). Also, the incubation period prolonged along with the epidemic stage (F=51.65, P<0.01), but the intervals between disease onset and hospital visit (F=5.32, P<0.01), disease onset and diagnosis (F=5.25, P<0.01) became shorter along with the epidemic stage. Additionally, the basic reproduction number (R0) had decreased from 2.61 in imported case stage to 0.66 in indigenous case stage. Conclusions: The COVID-19 epidemic in Gansu was caused by the imported cases, and about 2/3 cases were clustered ones. No medical worker was observed to be infected by occupational exposure. With the progression of COVID-19 epidemic in Gansu, the change in initial symptom and incubation period suggests, the early screening cannot only depend on body temperature monitoring.
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Affiliation(s)
- F X Gou
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - X S Zhang
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - J X Yao
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - D S Yu
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - K F Wei
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - H Zhang
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - X T Yang
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - J J Yang
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - H X Liu
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - Y Cheng
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - X J Jiang
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - Y H Zheng
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - B Wu
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - X F Liu
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - H Li
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
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9
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Nie Y, Yu DS, Wang CF, Liu XY, Huang B. A taxonomic revision of the genus Conidiobolus (Ancylistaceae, Entomophthorales): four clades including three new genera. MycoKeys 2020; 66:55-81. [PMID: 32273794 PMCID: PMC7136305 DOI: 10.3897/mycokeys.66.46575] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [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: 09/14/2019] [Accepted: 03/13/2020] [Indexed: 11/12/2022] Open
Abstract
The genus Conidiobolus is an important group in entomophthoroid fungi and is considered to be polyphyletic in recent molecular phylogenies. To re-evaluate and delimit this genus, multi-locus phylogenetic analyses were performed using the large and small subunits of nuclear ribosomal DNA (nucLSU and nucSSU), the small subunit of the mitochondrial ribosomal DNA (mtSSU) and the translation elongation factor 1-alpha (EF-1α). The results indicated that the Conidiobolus is not monophyletic, being grouped into a paraphyletic grade with four clades. Consequently, the well-known Conidiobolus is revised and three new genera Capillidium, Microconidiobolus and Neoconidiobolus are proposed along with one new record and 22 new combinations. In addition, the genus Basidiobolus is found to be basal to the other entomophthoroid taxa and the genus Batkoa locates in the Entomophthoraceae clade.
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Affiliation(s)
- Yong Nie
- Anhui Provincial Key Laboratory for Microbial Pest Control, Anhui Agricultural University, Hefei 230036, ChinaAnhui Agricultural UniversityHefeiChina
- School of Civil Engineering and Architecture, Anhui University of Technology, Ma’anshan 243002, ChinaAnhui University of TechnologyMa’anshanChina
| | - De-Shui Yu
- Anhui Provincial Key Laboratory for Microbial Pest Control, Anhui Agricultural University, Hefei 230036, ChinaAnhui Agricultural UniversityHefeiChina
| | - Cheng-Fang Wang
- Anhui Provincial Key Laboratory for Microbial Pest Control, Anhui Agricultural University, Hefei 230036, ChinaAnhui Agricultural UniversityHefeiChina
| | - Xiao-Yong Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, ChinaInstitute of Microbiology, Chinese Academy of SciencesBeijingChina
| | - Bo Huang
- Anhui Provincial Key Laboratory for Microbial Pest Control, Anhui Agricultural University, Hefei 230036, ChinaAnhui Agricultural UniversityHefeiChina
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10
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Bai SL, Wang JY, Zhou YQ, Yu DS, Gao XM, Li LL, Yang F. [Analysis of the first cluster of cases in a family of novel coronavirus pneumonia in Gansu Province]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:E005. [PMID: 32064855 DOI: 10.3760/cma.j.issn.0253-9624.2020.0005] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The epidemiological history and clinical characteristics of 7 cases of COVID-19 and 1 case of close contact in the first family aggregation epidemic of COVID-19 in Gansu Province were analyzed. The first patient A developed on January 22, 2020, with a history of residence in Wuhan, and confirmed severe cases of NCP on January 24, 2020; patient B, on January 23, 2020, diagnosed on January 31, severe cases; patient C, asymptomatic, diagnosed on January 27; patient D, asymptomatic, diagnosed on January 27; patient E, on January 24, diagnosed on January 28; patient F, asymptomatic, diagnosed on January 31; Patient G was asymptomatic and was diagnosed on January 31. In close contact, H was asymptomatic, PCR test was negative and asymptomatic, and he was discharged early. Among the 7 patients, 1 case died of (B) aggravation, and the other patients' condition was effectively controlled after active treatment. Except for the discharged cases, 5 cases were positive for COVID-19 specific IgM antibody and 1 case was negative. In this clustering outbreak, 4 patients remained asymptomatic, but PCR and IgM antibodies were positive, indicating that asymptomatic patients may be the key point to control the epidemic. Specific IgM antibody screening for patients whose pharyngeal swab nucleic acid test is negative but with ground glass-like lung lesions is very important for early detection and early isolation.
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Affiliation(s)
- S L Bai
- Department of Infectious Disease, Lanzhou Municipality Pulmonary Hospital, Lanzhou 730046, China
| | - J Y Wang
- Department of Infectious Disease, Lanzhou Municipality Pulmonary Hospital, Lanzhou 730046, China
| | - Y Q Zhou
- Department of Infectious Disease, Lanzhou Municipality Pulmonary Hospital, Lanzhou 730046, China
| | - D S Yu
- Gansu Province Center for Disease Control and Prevention, Lanzhou 730000, China
| | - X M Gao
- Department of Infectious Disease, Lanzhou Municipality Pulmonary Hospital, Lanzhou 730046, China
| | - L L Li
- Department of Infectious Disease, Lanzhou Municipality Pulmonary Hospital, Lanzhou 730046, China
| | - F Yang
- Department of Infectious Disease, Lanzhou Municipality Pulmonary Hospital, Lanzhou 730046, China
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11
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Xu KD, Wang W, Yu DS, Li XL, Chen JM, Feng BJ, Zhao YW, Cheng MJ, Liu XX, Li CW. NAA at a high concentration promotes efficient plant regeneration via direct somatic embryogenesis and SE-mediated transformation system in Ranunculus sceleratus. Sci Rep 2019; 9:18321. [PMID: 31797961 PMCID: PMC6892856 DOI: 10.1038/s41598-019-54538-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 05/23/2019] [Accepted: 11/15/2019] [Indexed: 01/08/2023] Open
Abstract
The novel methods for efficient plant regeneration via direct somatic embryogenesis (SE) and SE-mediated transformation system under high concentration of NAA in Ranunculus sceleratus were established. On MS media containing a high concentration of NAA (10.0 mg/L) in the dark, all inoculated explants (root, stem and leaf) formed somatic embryos at high frequencies, respectively, 66.03, 126.47 and 213.63 embryoids per explant, and 100% of the embryoids developed into plantlets on 1/2 MS rooting media. Morphological and histological analyses revealed that SE in R. sceleratus followed a classical pattern. All inoculated explants can be used as receptors for genetic transformation in R. sceleratus, through direct SE-mediated method after Agrobacterium infection. RcLEC1-B, as a marker gene, changed the number and morphology of flower organs and the development of cuticle in R. sceleratus, which indicated that the efficient transgenic system of R. sceleratus was established. To our knowledge, this is the first observation that both direct SE and transgenic transformation system, via induction of a single plant growth regulator, have been successfully constructed in R. sceleratus.
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Affiliation(s)
- Ke-Dong Xu
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, 466001, China.,Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, Zhoukou Normal University, Zhoukou, 466001, China
| | - Wei Wang
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, 466001, China.,Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, Zhoukou Normal University, Zhoukou, 466001, China
| | - De-Shui Yu
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, 466001, China.,Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, Zhoukou Normal University, Zhoukou, 466001, China
| | - Xiao-Li Li
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, 466001, China.,Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, Zhoukou Normal University, Zhoukou, 466001, China
| | - Jia-Min Chen
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, 466001, China.,Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, Zhoukou Normal University, Zhoukou, 466001, China
| | - Bo-Jin Feng
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, 466001, China.,Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, Zhoukou Normal University, Zhoukou, 466001, China
| | - Ya-Wen Zhao
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, 466001, China.,Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, Zhoukou Normal University, Zhoukou, 466001, China
| | - Meng-Jia Cheng
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, 466001, China.,Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, Zhoukou Normal University, Zhoukou, 466001, China
| | - Xin-Xin Liu
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, 466001, China.,Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, Zhoukou Normal University, Zhoukou, 466001, China
| | - Cheng-Wei Li
- Key Laboratory of Plant Genetics and Molecular Breeding, Zhoukou Normal University, Zhoukou, 466001, China. .,College of Life Science and Technology, Henan Institute of Science and Technology, Xinxiang, 453003, China. .,Henan Key Laboratory of Crop Molecular Breeding and Bioreactor, Zhoukou Normal University, Zhoukou, 466001, China.
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12
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Wei KF, Zhang H, He J, Yu DS, Yang XT, Jiang ZY, Gou FX, Cheng Y, Liu HX, Zheng YH, Jiang XJ, Liu XF. [Epidemiological and spatial-temporal distribution of several natural focus diseases in Gansu province, 2014-2018]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 40:947-952. [PMID: 31484259 DOI: 10.3760/cma.j.issn.0254-6450.2019.08.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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 analyze the epidemiological and spatial-temporal distribution of Brucellosis, epidemic encephalitis B and hemorrhagic fever with renal syndrome (HFRS) in Gansu province during 2014-2018 so as to provide evidence for the prevention and control of those diseases. Methods: A database was established in Gansu province from 2014 to 2018, using the geographical information system. A spatial distribution map was drawn, with trend analysis and space-time clustering used to study the 3-dimention of the diseases, by using both ArcGIS 10.5 and SaTScan 9.6 softwares. Results: Results from the trend surface analysis showed that the incidence of Brucellosis decreased gradually from north to south parts while the U type curve could reflect the distribution from the east to the west areas. Incidence of epidemic encephalitis B decreased significantly from south to north areas in the province, with incidence higher in the eastern than in the mid-west region. Difference on the incidence of HFRS was not significantly visible in the eastern and western regions, while the incidence was slightly higher in the southern than the northern parts of the province. Spatial and space-time clustering did exist among the 3 diseases in Gansu from 2014 to 2018. The areas with clusters of Brucellosis appeared in the eastern parts during 2014-2015, including 19 counties. The areas with secondary clusters of Brucellosis were seen in the Hexi district, including 4 counties, during 2017-2018. The areas with high incidence of epidemic encephalitis B were clustered in the middle and southeast areas, including 32 counties, during 2017-2018. Areas with most clusters of HFRS appeared in Min county of Dingxi city in 2018, with the areas of secondary clusters in 8 counties of the eastern areas in 2018. Conclusions: The overall incidence rates of the 3 natural focus diseases were in a upward trend and showing obvious characteristics on spatial clustering. According to the distributive characteristics, effective measures should be developed accordingly.
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Affiliation(s)
- K F Wei
- Institute for Communicable Disease Control and Prevention, Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
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Abstract
It has been well established that an accumulation of mutations in DNA, whether caused by external sources (e.g. ultraviolet light, radioactivity) or internal sources (e.g. metabolic by-products, such as reactive oxygen species), has the potential to cause a cell to undergo carcinogenesis and increase the risk for the development of cancer. Therefore, it is critically important for a cell to have the capacity to properly respond to and repair DNA damage as it occurs. The DNA damage response (DDR) describes a collection of DNA repair pathways that aid in the protection of genomic integrity by detecting myriad types of DNA damage and initiating the correct DNA repair pathway. In many instances, a deficiency in the DDR, whether inherited or spontaneously assumed, can increase the risk of carcinogenesis and ultimately tumorigenesis through the accumulation of mutations that fail to be properly repaired. Interestingly, although disruption of the DDR can lead to the initial genomic instability that can ultimately cause carcinogenesis, the DDR has also proven to be an invaluable target for anticancer drugs and therapies. Making matters more complicated, the DDR is also involved in the resistance to first-line cancer therapy. In this review, we will consider therapies already in use in the clinic and ongoing research into other avenues of treatment that target DNA repair pathways in cancer.
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Affiliation(s)
- E V Minten
- Department of Radiation Oncology, Emory University School of Medicine, Atlanta, GA, USA
| | - D S Yu
- Department of Radiation Oncology, Emory University School of Medicine, Atlanta, GA, USA.
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Minten EV, Zhang H, Li C, Head PE, Yu DS. Abstract P1-06-01: Regulation of BRCA1 by SIRT2. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p1-06-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
We are constantly exposed to a variety of both external and internal DNA damaging agents, such as UV light from the sun and reactive oxygen species created as by-products of aerobic respiration. As a result, our DNA accumulates thousands of instances of damage per cell per day. DNA damage response (DDR) pathways, which include DNA repair and cell-cycle checkpoints, are responsible for the repair of DNA damage and are critical for protecting against mutagenesis and maintaining genome integrity. DNA double-stranded breaks (DSBs) are the most deleterious type of DNA damage and are repaired by one of two pathways: Non-homologous end-joining (NHEJ), an error-prone mechanism of repair active throughout the entire cell cycle, or homologous recombination (HR), considered to be an 'error-free' method for DSB repair that occurs in the S and G2 phases of the cell cycle. Deficiencies in NHEJ or HR can result in genomic instability via genomic incorporation of chromosomal aberrations, which can ultimately lead to an increased risk of cancer. However, in many cases, the mechanisms by which defects in these pathways lead to an increased risk of developing cancer is unknown, making preventative care and treatment of resulting cancers more difficult. Breast Cancer 1 (BRCA1), an established tumor suppressor, is a protein necessary for the proper repair of DNA DSBs through the HR pathway. Defects in BRCA1, whether genetically inherited or spontaneously developed, have been linked to different types of cancer in both men and women, including breast, ovarian, and pancreatic cancer. Yet, the regulation of BRCA1 in HR is not well understood and thus highlights a major a gap in our understanding of how deficiencies in HR contribute to the development of cancer. Our lab has discovered that SIRT2, a class III NAD+ dependent histone deacetylase and putative human tumor suppressor, plays a crucial role in the DDR and repair of DNA DSBs. We have shown that depletion of SIRT2 impairs HR and increases cell sensitivity to ionizing radiation in a deacetylase-dependent manner. A mass spectrometry analysis showed SIRT2 interacts with several proteins involved in DDR, including BRCA1. We validated the interaction between SIRT2 and BRCA1 and found SIRT2 deacetylates BRCA1 both in vitro and in cells. Depletion of SIRT2 and subsequent deacetylation of BRCA1 decreases BRCA1 protein levels in cells, impairing HR. Our results show SIRT2 is a novel regulator of BRCA1 and is critical for the repair of DNA DSBs through HR. These findings provide invaluable insights into how to exploit the interplay between SIRT2 and BRCA1 as a novel therapeutic approach for the prevention and treatment of cancer.
Citation Format: Minten EV, Zhang H, Li C, Head PE, Yu DS. Regulation of BRCA1 by SIRT2 [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P1-06-01.
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Affiliation(s)
| | - H Zhang
- Emory University, Atlanta, GA
| | - C Li
- Emory University, Atlanta, GA
| | - PE Head
- Emory University, Atlanta, GA
| | - DS Yu
- Emory University, Atlanta, GA
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15
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Yu DS, Liu ZH, Long RQ, Li SL, Wang LZ, Cui X, Ruan B. [A case of fatal massive hemorrhage in the biopsy surgery due to the misdiagnosis of hypopharynx hemangioma]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 53:785-786. [PMID: 30347540 DOI: 10.3760/cma.j.issn.1673-0860.2018.10.013] [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: 11/05/2022]
Affiliation(s)
- D S Yu
- Department of Otorhinolaryngology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Z H Liu
- Department of Otorhinolaryngology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - R Q Long
- Department of Otorhinolaryngology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - S L Li
- Department of Otorhinolaryngology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - L Z Wang
- Department of Otorhinolaryngology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - X Cui
- Department of Otorhinolaryngology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - B Ruan
- Department of Otorhinolaryngology, First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
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16
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17
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Long RQ, Yu DS, Liu ZH, Yang J, Zhang CH, Jia FF, Gao JY. [Application of surgical cricothyrotomy in emergency and complicated airway management]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:1247-1251. [PMID: 30282169 DOI: 10.13201/j.issn.1001-1781.2018.16.009] [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] [Received: 04/12/2018] [Indexed: 06/08/2023]
Abstract
Objective:To explore the feasibility of intercricothyrotomy in emergency airway management. Method:Characteristics of 27 cases underwent surgical cricothyrotomy were analyzed. Result:The main causes of emergency were severe trauma of head and neck, larynx stenosis, interspaces infection of the floor of the mouth and submaxillary space, etc; all the patients were divided into 2 groups : surgical cricothyrotomy as the first choice (group A,16/27) and surgical cricothyrotomy after conventional tracheotomy (group B,11/27); The average time of opening airway for group A was much shorter than group B [(58.12±24.41)s, (739.09±245.29)s,respectively, P<0.01)]; Bleeding in group A (14 cases) was much less than group B (13 cases) [(2.36±1.16)ml, (4.65±4.31)ml,respectively, P<0.01]; Except 1 cases died from primary disease, 4 cases with laryngeal stenosis underwent laryngeal dilation with T type expansion tube and 2 cases of bilateral recurrent laryngeal nerve palsy, the average time with tracheal tube of the remaining 20 patients was (12.35±7.29)d, no postoperative complications such as larynx or tracheal stenosis were found. All of them were successfully extubation. Conclusion:Surgical cricothyrotomy procedure is fast and safe with simple and convenient that can be used as the preferred method of rapid airway opening when a critical respiratory tract was difficult to manage.
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Affiliation(s)
- R Q Long
- Department of Otorhinolaryngology, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
| | - D S Yu
- Department of Otorhinolaryngology, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
| | - Z H Liu
- Department of Otorhinolaryngology, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
| | - J Yang
- Department of Otorhinolaryngology, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
| | - C H Zhang
- Department of Emergency Medicine, First Affiliated Hospital of Kunming Medical University
| | - F F Jia
- Department of Otorhinolaryngology, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
| | - J Y Gao
- Department of Otorhinolaryngology, First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China
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Lee YB, Lee SY, Choi JY, Lee JH, Chae HS, Kim JW, Han KD, Park YG, Yu DS. Incidence, prevalence, and mortality of Adamantiades-Behçet's disease in Korea: a nationwide, population-based study (2006-2015). J Eur Acad Dermatol Venereol 2017; 32:999-1003. [PMID: 28940547 DOI: 10.1111/jdv.14601] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 09/05/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND The epidemiology of Adamantiades-Behçet's disease varies among ethnic populations worldwide. Trends in the incidence of Adamantiades-Behçet's disease have not been investigated based on the Korean National Health Insurance database. OBJECTIVES This study investigated the incidence and mortality of Adamantiades-Behçet's disease by age using nationwide population data in Korea. METHODS A nationwide population-based cohort study was performed using the Korean National Health Insurance Claims Database from 2006 to 2015. The incidence of Adamantiades-Behçet's disease was calculated by age, sex, calendar year and habitat. And comorbid metabolic diseases were also analysed in patients with Adamantiades-Behçet's disease. RESULTS The annual incidence of Adamantiades-Behçet's disease per 100 000 person-years was 3.976 (2.587 for males and 5.373 for females) from 2006 to 2015. The incidence of Adamantiades-Behçet's disease peaked among people in their 40s (6.561 per 100 000 person-years). Incidence was significantly higher in subjects with comorbid metabolic conditions, such as diabetes mellitus, hypertension and dyslipidemia. The mortality rate per 1000 person-years increased with age in patients with Adamantiades-Behçet's disease. CONCLUSIONS This study showed the incidence, prevalence and mortality of Adamantiades-Behçet's disease. Metabolic conditions increased the risk of Adamantiades-Behçet's disease among Koreans.
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Affiliation(s)
- Y B Lee
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - S Y Lee
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - J Y Choi
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - J H Lee
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - H S Chae
- Department of Internal Medicine, The Catholic University of Korea, Seoul, South Korea
| | - J W Kim
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - K D Han
- Department of Medical Statistics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Y G Park
- Department of Medical Statistics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - D S Yu
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Zhao XF, Yuan M, Chen X, Liu XF, Yu DS, Li J. [Drug resistance and dissemination of New Delhi metallo-β-lactamase 1 positive bacteria in a patient]. Zhonghua Yu Fang Yi Xue Za Zhi 2017; 51:890-895. [PMID: 29036990 DOI: 10.3760/cma.j.issn.0253-9624.2017.10.005] [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: 06/07/2023]
Abstract
Objective: The aim of this work was to report the surveillance and dissemination of NDM-1 positive bacteria in a patient and ward environment. Methods: In 2010, during the therapy for a 51 years old patient, clinical and environmental samples were collected for carbapenem resistant bacterial culture, according to the clinical microbiological examination. Strains identification and antibiotic susceptibility were tested by VITEK Compact 2 system and E-test. The bla(NDM-1) was detected by PCR and analyzed by sequencing. Plasmids containing bla(NDM-1) were submitted to PFGE-S1 and Southern hybridization. Results: During hospitalization from October 1st to November 4th, nine strains were isolated from blood, sputum, urine, fecal, and ward ground samples. The Klebsiella oxytoca, Raoultella planticola, and Acinetobacter baumannii were isolated from blood sample. The Klebsiella pneumonia and Acinetobacter baumannii were isolated from sputum sample. An Acinetobacter lwoffii was isolated from urine sample. An Escherichia coli was isolated from fecal sample. And the Acinetobacter lwoffii and Acinetobacter spp. were isolated from ward ground. Four strains were NDM-1 positive, which were Raoultella planticola (RpNDM1) isolated from blood, Escherichia coli (EcNDM1) isolated from fecal, Acinetobacter lwoffii (AlDNM1) and Acinetobacter spp. (AsNDM1) isolated from ward ground. Four NDM-1 positive strains were resistant to Piperacillin, Piperacillin tazobactam, Cefepime, Ceftriaxone, Ceftazidime, Imipenem, Meropenem, and Ertapenem. Southern hybridization revealed that bla(NDM-1) were all located on plasmids in the four positive strains. Conclusion:bla(NDM-1) can transfer rapidly among different species, resulting in difficult to control and prevent. While isolating patient who is carrying NDM-1 positive strains, more attention should be paid to the disposal of patient's excreta, especially stool, should be paid more attention.
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Affiliation(s)
- X F Zhao
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention; State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
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Li XC, Li JS, Meng L, Bai YN, Yu DS, Liu XN, Liu XF, Jiang XJ, Ren XW, Yang XT, Shen XP, Zhang JW. [Study on the classification of dominant pathogens related to febrile respiratory syndrome, based on the method of Bayes discriminant analysis]. Zhonghua Liu Xing Bing Xue Za Zhi 2017; 38:1094-1097. [PMID: 28847061 DOI: 10.3760/cma.j.issn.0254-6450.2017.08.019] [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: 06/07/2023]
Abstract
Objective: To understand the dominant pathogens of febrile respiratory syndrome (FRS) patients in Gansu province and to establish the Bayes discriminant function in order to identify the patients infected with the dominant pathogens. Methods: FRS patients were collected in various sentinel hospitals of Gansu province from 2009 to 2015 and the dominant pathogens were determined by describing the composition of pathogenic profile. Significant clinical variables were selected by stepwise discriminant analysis to establish the Bayes discriminant function. Results: In the detection of pathogens for FRS, both influenza virus and rhinovirus showed higher positive rates than those caused by other viruses (13.79%, 8.63%), that accounting for 54.38%, 13.73% of total viral positive patients. Most frequently detected bacteria would include Streptococcus pneumoniae, and haemophilus influenza (44.41%, 18.07%) that accounting for 66.21% and 24.55% among the bacterial positive patients. The original-validated rate of discriminant function, established by 11 clinical variables, was 73.1%, with the cross-validated rate as 70.6%. Conclusion: Influenza virus, Rhinovirus, Streptococcus pneumoniae and Haemophilus influenzae were the dominant pathogens of FRS in Gansu province. Results from the Bayes discriminant analysis showed both higher accuracy in the classification of dominant pathogens, and applicative value for FRS.
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Affiliation(s)
- X C Li
- Department of Epidemiology and Health Statistics, School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - J S Li
- Department of Epidemiology and Health Statistics, School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - L Meng
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - Y N Bai
- Department of Epidemiology and Health Statistics, School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - D S Yu
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - X N Liu
- Department of Epidemiology and Health Statistics, School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - X F Liu
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - X J Jiang
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - X W Ren
- Department of Epidemiology and Health Statistics, School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - X T Yang
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, China
| | - X P Shen
- Department of Epidemiology and Health Statistics, School of Public Health, Lanzhou University, Lanzhou 730000, China
| | - J W Zhang
- Department of Epidemiology and Health Statistics, School of Public Health, Lanzhou University, Lanzhou 730000, China
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Kim HY, Kim CW, Choi JY, Yu DS, Kim JW, Han KD, Park YG, Lee YB. Atopic dermatitis is inversely associated with hepatitis B antigen positivity: a population-based cohort study. J Eur Acad Dermatol Venereol 2017. [PMID: 28646620 DOI: 10.1111/jdv.14428] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
BACKGROUND No clear association between hepatitis B virus (HBV) infection and atopic dermatitis (AD) has been established. Some studies have reported that subjects with HBV had an increased risk of atopy; other studies reported an inverse association between HBV seropositivity and allergic diseases. OBJECTIVE We evaluated the association between AD and hepatitis B antigen (HBsAg) positivity using Korean National Health and Nutrition Examination Survey data. METHODS In total, 14 776 participants aged >19 years were included in the analysis. Multiple logistic regression analyses were used to evaluate the odds ratio of HBsAg positivity in association with AD and asthma. RESULTS The prevalence of HBsAg positivity was lower in individuals with AD than in those without AD (mean [SE], 0.7% [0.4] vs. 3.7% [0.2]; P < 0.001). However, HBsAg positivity was not significantly associated with asthma (3.7% [0.2] vs. 2.8% [0.8]; P < 0.001). HBsAg positivity decreased the risk of AD significantly (OR = 0.223; 95% CI = 0.069-0.72). CONCLUSIONS This study demonstrates an inverse association between AD and HBsAg positivity using a nationwide, population-based, cross-sectional health examination and survey.
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Affiliation(s)
- H Y Kim
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - C W Kim
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - J Y Choi
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - D S Yu
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - J W Kim
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - K D Han
- Department of Medical Statistics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Y G Park
- Department of Medical Statistics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Y B Lee
- Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Yu DS, Wang YS, Bi YL, Guo ZP, Yuan YJ, Tong SM, Su RC, Ge LH, Wang J, Pan YL, Guan TT, Cao Y. Salvianolic acid A ameliorates the integrity of blood-spinal cord barrier via miR-101/Cul3/Nrf2/HO-1 signaling pathway. Brain Res 2016; 1657:279-287. [PMID: 28011395 DOI: 10.1016/j.brainres.2016.12.007] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 11/22/2016] [Accepted: 12/05/2016] [Indexed: 01/15/2023]
Abstract
Salvianolic acid A (Sal A), a bioactive compound isolated from the Chinese medicinal herb Danshen, is used for the prevention and treatment of cardiovascular diseases. However, the protective function of Sal A on preserving the role of blood-spinal cord barrier (BSCB) after spinal cord injury (SCI) is unclear. The present study investigated the effects and mechanisms of Sal A (2.5, 5, 10mg/kg, i.p.) on BSCB permeability at different time-points after compressive SCI in rats. Compared to the SCI group, treatment with Sal A decreased the content of the Evans blue in the spinal cord tissue at 24h post-SCI. The expression levels of tight junction proteins and HO-1 were remarkably increased, and that of p-caveolin-1 protein was greatly decreased after SCI Sal A. The effect of Sal A on the expression level of ZO-1, occluding, and p-caveolin-1 after SCI was blocked by the HO-1 inhibitor, zinc protoporphyrin IX (ZnPP). Also, Sal A inhibited the level of apoptosis-related proteins and improved the motor function until 21days after SCI. In addition, Sal A significantly increased the expression of microRNA-101 (miR-101) in the RBMECs under hypoxia. AntagomiR-101 markedly increased the RBMECs permeability and the expression of the Cul3 protein by targeting with 3'-UTR of its mRNA. The expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and HO-1 was significantly increased after agomiR-101 treatment. Therefore, Sal A could improve the recovery of neurological function after SCI, which could be correlated with the repair of BSCB integrity by the miR-101/Cul3/Nrf2/HO-1 signaling pathway.
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Affiliation(s)
- De-Shui Yu
- Department of Orthopaedics, The First Affiliated Hospital, Jinzhou Medical University, People Street No. 2-5, GuTa District, Jinzhou 121001, Liaoning Province, PR China
| | - Yan-Song Wang
- Department of Orthopaedics, The First Affiliated Hospital, Jinzhou Medical University, People Street No. 2-5, GuTa District, Jinzhou 121001, Liaoning Province, PR China
| | - Yun-Long Bi
- Department of Orthopaedics, The First Affiliated Hospital, Jinzhou Medical University, People Street No. 2-5, GuTa District, Jinzhou 121001, Liaoning Province, PR China
| | - Zhan-Peng Guo
- Department of Orthopaedics, The First Affiliated Hospital, Jinzhou Medical University, People Street No. 2-5, GuTa District, Jinzhou 121001, Liaoning Province, PR China
| | - Ya-Jiang Yuan
- Department of Orthopaedics, The First Affiliated Hospital, Jinzhou Medical University, People Street No. 2-5, GuTa District, Jinzhou 121001, Liaoning Province, PR China
| | - Song-Ming Tong
- Department of Orthopaedics, The First Affiliated Hospital, Jinzhou Medical University, People Street No. 2-5, GuTa District, Jinzhou 121001, Liaoning Province, PR China
| | - Rui-Chao Su
- Department of Orthopaedics, The First Affiliated Hospital, Jinzhou Medical University, People Street No. 2-5, GuTa District, Jinzhou 121001, Liaoning Province, PR China
| | - Li-Hao Ge
- Department of Orthopaedics, The First Affiliated Hospital, Jinzhou Medical University, People Street No. 2-5, GuTa District, Jinzhou 121001, Liaoning Province, PR China
| | - Jian Wang
- Department of Orthopaedics, The First Affiliated Hospital, Jinzhou Medical University, People Street No. 2-5, GuTa District, Jinzhou 121001, Liaoning Province, PR China
| | - Ya-Li Pan
- Department of Physiology, Life Science and Biopharmaceutical Institution, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning Province, PR China
| | - Ting-Ting Guan
- Department of Physiology, Life Science and Biopharmaceutical Institution, Shenyang Pharmaceutical University, Shenyang 110016, Liaoning Province, PR China
| | - Yang Cao
- Department of Orthopaedics, The First Affiliated Hospital, Jinzhou Medical University, People Street No. 2-5, GuTa District, Jinzhou 121001, Liaoning Province, PR China.
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Wu K, Zhi XD, Wang YS, Yu DS. Localized Delivery of Ketoprofen from Biodegradable In-Situ Hydrogel in Effective Management of Pain and Inflammation in Intervertebral Disc Disorders. J BIOMATER TISS ENG 2016. [DOI: 10.1166/jbt.2016.1530] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Lin YH, Luo YL, Lee CC, Yang SF, Yu DS. A PC-based laparoscopic surgery skills training and assessment system. Annu Int Conf IEEE Eng Med Biol Soc 2015; 2014:498-501. [PMID: 25570005 DOI: 10.1109/embc.2014.6943637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The purpose of this study is to build a cost-effective and easy-to-popularize laparoscopic training system based on improving traditional training box. The system has the capability of objective skills assessment and the function of automatic recording of training process and results, as well as 3-dimensional coordinate tracking of instruments. The results of pilot experiment in laparoscopic-assisted grip skill assessment had been shown the system can assess the different grip ability level between the senior surgeons and junior residents. Regarding to the evaluation of training effectiveness, five subjects without laparoscopic surgery experiences were asked to perform grip training for five days to observe their training curves. According to the experimental results, the total time taken for subject 1 to subject 5 are improved by 54.9%, 52.0%, 60.6%, 23.3%, and 63.5% separately.
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Hall WA, Petrova AV, Colbert LE, Hardy CW, Fisher SB, Saka B, Shelton JW, Warren MD, Pantazides BG, Gandhi K, Kowalski J, Kooby DA, El-Rayes BF, Staley CA, Volkan Adsay N, Curran WJ, Landry JC, Maithel SK, Yu DS. Low CHD5 expression activates the DNA damage response and predicts poor outcome in patients undergoing adjuvant therapy for resected pancreatic cancer. Oncogene 2013; 33:5450-6. [PMID: 24276239 DOI: 10.1038/onc.2013.488] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Revised: 08/17/2013] [Accepted: 10/04/2013] [Indexed: 01/01/2023]
Abstract
The DNA damage response (DDR) promotes genome integrity and serves as a cancer barrier in precancerous lesions but paradoxically may promote cancer survival. Genes that activate the DDR when dysregulated could function as useful biomarkers for outcome in cancer patients. Using a siRNA screen in human pancreatic cancer cells, we identified the CHD5 tumor suppressor as a gene, which, when silenced, activates the DDR. We evaluated the relationship of CHD5 expression with DDR activation in human pancreatic cancer cells and the association of CHD5 expression in 80 patients with resected pancreatic adenocarcinoma (PAC) by immunohistochemical analysis with clinical outcome. CHD5 depletion and low CHD5 expression in human pancreatic cancer cells lead to increased H2AX-Ser139 and CHK2-Thr68 phosphorylation and accumulation into nuclear foci. On Kaplan-Meier log-rank survival analysis, patients with low CHD5 expression had a median recurrence-free survival (RFS) of 5.3 vs 15.4 months for patients with high CHD5 expression (P=0.03). In 59 patients receiving adjuvant chemotherapy, low CHD5 expression was associated with decreased RFS (4.5 vs 16.3 months; P=0.001) and overall survival (OS) (7.2 vs 21.6 months; P=0.003). On multivariate Cox regression analysis, low CHD5 expression remained associated with worse OS (HR: 3.187 (95% CI: 1.49-6.81); P=0.003) in patients undergoing adjuvant chemotherapy. Thus, low CHD5 expression activates the DDR and predicts for worse OS in patients with resected PAC receiving adjuvant chemotherapy. Our findings support a model in which dysregulated expression of tumor suppressor genes that induce DDR activation can be utilized as biomarkers for poor outcome.
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Affiliation(s)
- W A Hall
- Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - A V Petrova
- Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - L E Colbert
- Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - C W Hardy
- Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - S B Fisher
- Division of Surgical Oncology, Department of Surgery, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - B Saka
- Department of Pathology, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - J W Shelton
- Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - M D Warren
- Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - B G Pantazides
- Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - K Gandhi
- Biostatistics and Bioinformatics Shared Resource, Winship Cancer Institute, Atlanta, GA, USA
| | - J Kowalski
- Biostatistics and Bioinformatics Shared Resource, Winship Cancer Institute, Atlanta, GA, USA
| | - D A Kooby
- 1] Division of Surgical Oncology, Department of Surgery, Winship Cancer Institute, Emory University, Atlanta, GA, USA [2] Atlanta Veterans Affairs Medical Center, Atlanta, GA, USA
| | - B F El-Rayes
- Department of Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - C A Staley
- Division of Surgical Oncology, Department of Surgery, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - N Volkan Adsay
- Department of Pathology, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - W J Curran
- Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - J C Landry
- Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - S K Maithel
- Division of Surgical Oncology, Department of Surgery, Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - D S Yu
- Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA
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Li SQ, Cao XD, Yu DS, Li Y. [Effects of hypoxia preconditioning on serum NGB and S-100B in patients with intracranial aneurysm surgery]. Sichuan Da Xue Xue Bao Yi Xue Ban 2013; 44:747-755. [PMID: 24325104] [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: 06/03/2023]
Abstract
OBJECTIVE To study the clinical effects of hypoxia preconditioning (HPC) and its effects on serum neuroglobin (NGB) and S-100B level in the patients undergoing intracranial aneurysm surgery. METHODS Forty patients scheduled to intracranial aneurysm surgery were randomly.divided into 2 groups: HPC group (n= 20) and control group (n= 20). The patients in HPC group were treated with 3 cycles of deoxidation-reoxygenation after intubation. The time of deoxidation in each HPC cycle was recorded, while vital signs were also recorded in each corresponding time point. Blood samples were obtained from exsanguinate radial artery and jugular bulb section at the end of each HPC cycle and corresponding time points during operation to measure serum level of NGB and S100B protein and to analysis blood gas. RESULTS During HPC process, the patients in group HPC experienced mild hypoxia and CO2 retention. With the times of HPC increasing, CO2 retention degree became heavier (P<0. 05) while hypoxia improved, the patients need more time to make SpO2 from 100% to 90% (P<0. 05). From T2 to T4 (the end of the third reoxygenation, during skull opened and aneurysm dipped, skull closed), NGB in group HPC was higher than that in control (P<0. 05), but S-100B level was not different between HPC and control group (P>0. 05). CONCLUSION HPC could induce compensatory ability of the body to hypoxia, which might be related to the up-regulation of NGB expression.
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Affiliation(s)
- Shi-Qi Li
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu 610041, China
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Abstract
With the development of molecular marker technology, crop breeding has been accelerated by marker-assisted selection for the improvement of quantitative traits. However, due to the traits' polygenic nature, traditional marker-assisted selection methods are ill-suited for identification of quantitative trait loci. Genomic selection (GS) was introduced into crop breeding to achieve more accurate predictions by considering all genes or markers simultaneously. We used dozens of sequence-characterized amplified region (SCAR) markers for genotyping soybean varieties, and we identified markers associated with hundred-seed weight. The best linear unbiased predictor and Bayesian liner regression methods were used to construct GS models to predict the hundred-seed weight trait based upon genotype information for trait selection. Both GS models showed good prediction performance in soybean, as the correlation coefficient between genomic estimated breeding values and true breeding values was as high as 0.904. This indicated that GS was performed effectively based on dozens of SCAR markers in soybean; these markers were of low density but easily detectable. Therefore, the combination of GS modeling and highly effective molecular marker technology involving SCAR markers can facilitate genetic breeding in soybean. This approach may also be suitable for genetic selection in other crops, such as wheat, maize, and rice.
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Affiliation(s)
- Y J Shu
- Key Laboratory of Molecular Cytogenetics and Genetic Breeding of Heilongjiang Province, College of Life Science and Technology, Harbin Normal University, Harbin, Heilongjiang Province, China
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Meng E, Young JS, Cha TL, Sun GH, Yu DS, Brading AF. Neuronal-derived nitric oxide modulates the activity of mouse detrusor smooth muscle. Neurourol Urodyn 2012; 31:572-8. [PMID: 22275213 DOI: 10.1002/nau.21247] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2011] [Accepted: 11/07/2011] [Indexed: 11/10/2022]
Abstract
AIMS We investigated the roles of neuronal-derived nitric oxide (NO) in the modulation of spontaneous activity of mouse detrusor smooth muscle. METHODS Detrusor smooth muscle strips were isolated from nNOS gene knock-out (nNOS(-/-) ) mice and their wild type siblings (nNOS(+/+) ). The properties of smooth muscle cells were assessed using intracellular electrophysiology and Ca(2+) imaging by laser-scanning confocal microscopy. The effects of an nNOS inhibitor, 7-nitro indazole (7-NI) on electrically evoked contractility were assessed using nNOS(+/+) mouse detrusor strips. RESULTS In spontaneously active cells, the frequency of spontaneous action potentials (sAPs) and whole cell Ca(2+) flashes in nNOS(-/-) preparations was lower than that in the nNOS(+/+) preparations. The frequency of sAPs was enhanced by a nitric oxide donor, diethylamine NONOate sodium salt (NONOate; 100 µM), both when used alone and when the cGMP pathway was blocked by 1H-[1,2,4] oxadiazolo [4,3-a] quinoxalin-1-one (ODQ, 10 µM). 7-NI (100 µM) significantly suppressed the electrically evoked contraction of mouse detrusor strips. CONCLUSIONS We suggest that neuronal-derived NO facilitates the generation of spontaneous activity via a cGMP-independent pathway, and consequently enhances the evoked contraction of detrusor. Dysregulation of nNOS containing nerves may underlie bladder pathologies.
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Affiliation(s)
- E Meng
- Department of Surgery, National Defense Medical Center, Taipei, Taiwan, Republic of China.
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Yu DS, Xu ZQ. [EPCA-2 in the early diagnosis of prostate cancer]. Zhonghua Nan Ke Xue 2010; 16:552-555. [PMID: 20608363] [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: 05/29/2023]
Abstract
More and more clinical evidence has confirmed the limitations of the use of serum PSA in the screening, detection and treatment of prostate cancer, and scientists are continuously seeking for new biomarkers of the disease. The discovery of early prostate cancer antigen 2 (EPCA-2) has provided a new base for the screening, detection, treatment and follow-up of prostate cancer.
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Affiliation(s)
- De-Shui Yu
- Department of Urology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu 214023, China.
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Zhao DM, Wang YX, Chen ZY, Xu RW, Wu G, Yu DS. Preparation and characterization of modified hydroxyapatite particles by heparin. Biomed Mater 2008; 3:025016. [DOI: 10.1088/1748-6041/3/2/025016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Kim HS, Kim JW, Yu DS. Semicircular (Tenzel) flap for malignant melanoma involving the palpebral conjunctiva and skin of an eyelid. J Eur Acad Dermatol Venereol 2007; 22:102-3. [PMID: 18005025 DOI: 10.1111/j.1468-3083.2007.02166.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Yu DS, Shi XZ, Wang HJ, Sun WX, Chen JM, Liu QH, Zhao YC. Regional patterns of soil organic carbon stocks in China. J Environ Manage 2007; 85:680-9. [PMID: 17126986 DOI: 10.1016/j.jenvman.2006.09.020] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2005] [Revised: 09/08/2006] [Accepted: 09/19/2006] [Indexed: 05/12/2023]
Abstract
Soil organic carbon (SOC) is of great importance in the global carbon cycle. Distribution patterns of SOC in various regions of China constitute a nation-wide baseline for studies on soil carbon changes. This paper presents an integrated and multi-level study on SOC stock patterns of China, and presents baseline SOC stock estimates by great administrative regions, river watersheds, soil type regions and ecosystem. The assignment is done by means of a recently completed 1: 1,000,000 scale soil database of China, which is the most detailed and reliable one in China at the present time. SOC densities of 7292 soil profiles collected across China in the middle of the 1980s were calculated and then linked to corresponding polygons in a digital soil map, resulting in a SOC Density Map of China on a 1: 1,000,000 scale, and a 1 km x 1 km grid map. Corresponding maps of administrative regions, river watersheds, soil types (ST), and ecosystems in China were also prepared with an identical resolution and coordinate control points, allowing GIS analyses. Results show that soils in China cover an area of 9.281 x 10(6)km(2) in total, with a total SOC stock of 89.14 Pg (1 Pg=10(15)g) and a mean SOC density of 96.0 t C/ha. Confidence limits of the SOC stock and density in China are estimated as [89.23 Pg, 89.08 Pg] and [96.143 t C/ha, 95.981 t C/ha] at 95% probability, respectively. The largest total SOC stock (23.60 Pg) is found in South-west China while the highest mean SOC density (181.9 t C/ha) is found in north-east China. The total SOC stock and the mean SOC density in the Yangtze river watershed are 21.05 Pg and 120.0 t C/ha, respectively, while the corresponding figures in the Yellow river watershed are 8.46 Pg and 104.3 t C/ha, respectively. The highest total SOC stocks are found in Inceptisols (34.39 Pg) with SOC density of 102.8 t C/ha. The lowest and highest mean SOC densities are found on Entisols (28.1 t C/ha), and on Histosols (994.728.1 t C/ha), respectively. Finally, the total SOC stock in shrub and forest ecosystem classes are 25.55 and 21.50 Pg, respectively; the highest mean SOC density (209.9 t C/ha) was recorded in the wetland ecosystem class and the lowest (29.0 t C/ha) in the desert ecosystem class. Among five forest ecosystem types, Evergreen conifer forest stores the highest SOC stock (6.81 Pg), and Deciduous conifer forest shows the highest SOC density (225.9 t C/ha). Figures of SOC stocks stratified by Administrative regions, river watersheds, soil types and ecosystem types presented in the study may constitute national-wide baseline for studies of SOC stock changes in various regions in the future.
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Affiliation(s)
- D S Yu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
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Kim MH, Cho D, Kim HJ, Chong SJ, Lee KH, Yu DS, Park CJ, Lee JY, Cho BK, Park HJ. Investigation of the corticotropin-releasing hormone-proopiomelanocortin axis in various skin tumours. Br J Dermatol 2007; 155:910-5. [PMID: 17034518 DOI: 10.1111/j.1365-2133.2006.07442.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [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: 01/20/2023]
Abstract
BACKGROUND Various types of external stress cause the skin and central neuroendocrine system to express corticotropin-releasing hormone (CRH)-proopiomelanocortin (POMC) axis-related hormones. However, the precise role of the CRH-POMC axis-related hormones in various skin tumours is unclear. OBJECTIVES This study examined expression patterns of the CRH-POMC axis-related hormones in skin tumours. METHODS The production of CRH, adrenocorticotropic hormone (ACTH) and alpha-melanocyte-stimulating hormone (alpha-MSH) in various tumour cell lines including HaCaT and primary keratinocytes was examined using an enzyme-linked immunosorbent assay. Immunohistochemical analysis of the skin tumours was also performed. RESULTS CRH, ACTH and alpha-MSH were strongly expressed in malignant skin tumour cell lines such as G-361 and DX-3 (both malignant melanoma, MM). However, normal and haematological malignancy cell lines did not express the CRH-POMC axis-related hormones. Immunohistochemical analysis of the skin tumours showed that MM (80%), squamous cell carcinoma (SCC, 70%) and basal cell carcinoma (BCC, 10%) had strong immunoreactivity (++/+++) for CRH. Strong ACTH and alpha-MSH expression was observed in MM (70% and 50%, respectively), SCC (80% and 60%, respectively) and BCC (70% and 50%, respectively). CONCLUSIONS We report that an increase in the level of the CRH-POMC axis-related hormones is associated with malignant skin tumours such as MM. These results highlight the importance of the CRH-POMC axis-related hormones in the malignant tendency of skin tumours.
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Affiliation(s)
- M H Kim
- Department of Dermatology, St Mary's Hospital, College of Medicine, The Catholic University of Korea, 62 Youido-dong, Youngdeunpo-gu, Seoul 150-713, Korea
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Kim HS, Yu DS, Kim JW. A case of febrile ulceronecrotic Mucha-Habermann's disease successfully treated with oral cyclosporin. J Eur Acad Dermatol Venereol 2007; 21:272-3. [PMID: 17243979 DOI: 10.1111/j.1468-3083.2006.01843.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Yu DS, Hsieh DS, Chang SY. Redistribution of androgen receptors in acquired hormone-refractory prostate cancer cells. ACTA ACUST UNITED AC 2006; 52:389-95. [PMID: 16873140 DOI: 10.1080/01485010600666854] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The dynamic translocation of androgen receptors (ARs) in prostate cancer cells after hormone conversion was studied. The prostate cancer cell line LNCaP was converted into androgen-independent sublines after long-term treatment with 5alpha-reductase inhibitor and steroid-depleted medium. Immunohistochemical, immunofluorescent staining and laser scanning microscopy were used to observe the redistribution and serial translocation of ARs in these tumor cells. The androgen-independent tumor cells (LNCaP/Fin and LNCaP/HR) grew slower than native cells with fibroblastic-like characteristics. On immunohistochemical and immunofluorescent double staining, translocation and exocytosis of ARs were noted in androgen- independent tumor cells much more markedly than in native cells. Furthermore, laser-scanning microscopy revealed serial image changes of AR vesicle shifting and exocytosis in androgen-converted tumor cells. Translocation and exocytosis processes were observed in androgen-independent prostate cancer cells. ARs lose partly normal cellular biologic role during hormone manipulation.
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Affiliation(s)
- D S Yu
- Department of Surgery, Division of Urology, Uro-Oncology Laboratory, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC.
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Peng YZ, Zhu GB, Wang SY, Yu DS, Cui YW, Meng XS. Pilot-scale studies on biological treatment of hypersaline wastewater at low temperature. Water Sci Technol 2005; 52:129-37. [PMID: 16459784] [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: 05/06/2023]
Abstract
In order to investigate the feasibility of biological treatment of hypersaline wastewater produced from toilet flushing with seawater at low temperature, pilot-scale studies were established with plug-flow activated sludge process at low temperature (5-9 degrees C) based on bench-scale experiments. The critical salinity concentration of 30 g/L, which resulted from the cooperation results of the non-halophilic bacteria and the halophilic bacteria, was drawn in bench-scale experiments. Pilot-scale studies showed that high COD removal efficiency, higher than 80%, was obtained at low temperature when 30 percent seawater was introduced. The salinity improved the settleability of activated sludge, and average sludge value dropped down from 38% to 22.5% after adding seawater. Seawater salinity had a strong negative effect on notronomonas and nitrobacter growth, but much more on the nitrobacter. The nitrification action was mainly accomplished by nitrosomonas. Bench-scale experiments using two SBRs were carried out for further investigation under different conditions of salinities, ammonia loadings and temperatures. Biological nitrogen removal via nitrite pathway from wastewater containing 30 percent seawater was achieved, but the ammonia removal efficiency was strongly related not only to the influent ammonia loading at different salinities but also to temperature. When the ratio of seawater to wastewater was 30 percent, and the ammonia loading was below the critical value of 0.15 kgNH4+-N/(kgMLSS.d), the ammonia removal efficiency via nitrite pathway was above 90%. The critical level of ammonia loading was 0.15, 0.08 and 0.03 kgNH4+-N/(kgMLSS.d) respectively at the different temperature 30 degrees C, 25 degrees C and 20 degrees C when the influent ammonia concentration was 60-80 mg/L and pH was 7.5-8.0.
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Affiliation(s)
- Y Z Peng
- School of Municipal and Environmental Engineering, Harbin Institute of Technology, 202 Haihe Road, Nangang District, Harbin 150090, China.
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Abstract
Aggressive angiomyxoma is a rare and nonmetastasizing soft tissue tumor of the pelvis and perineum and occurs almost exclusively in adult females. It infiltrates locally and has a high risk of local recurrence. Recommended treatment of the symptomatic patient is wide excision with tumor-free margins and close postoperative monitoring. Herein, a case of aggressive angiomyxoma in an adult male is described, which arose in the scrotum over 12 months. The tumor showed an intermediate signal on T1-weighted MRI images. Contrast-enhanced T1-weighted images showed good enhancement. Wide excision of the tumor was performed. The surgical specimen measured 7 x 5 x 5 cm in size and weighed 80 g. The tumor's surface was smooth and had a gelatinous cut surface. Grossly, it was encapsulated with a pleura-like membrane and had a finger-like projection. Microscopically, sections showed many walled vessels of various sizes, collagen fibrils, a loose myxoid background. and spindle stroma cells. MRI and CT showed the angiomatous and myxomatous nature of the tumor wall. To the authors' knowledge, this is the first report to describe MRI findings in scrotal angiomyxoma.
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Affiliation(s)
- F P Chuang
- Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China
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Yu DS, Hsieh DS, Chen HI, Chang SY. The expression of neuropeptides in hyperplastic and malignant prostate tissue and its possible clinical implications. J Urol 2001; 166:871-5. [PMID: 11490236] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
PURPOSE We characterized the incidence and pattern of distribution of neuroendocrine differentiated tumor cells in prostatic hyperplastic and carcinomatous tissue, correlated neuroendocrine differentiation with prostate specific antigen (PSA) and assessed whether neuroendocrine cells have value as an independent indicator of poor prognosis in patients with prostate carcinoma. MATERIALS AND METHODS We immunohistochemically evaluated hyperplastic and carcinomatous prostate specimens for chromogranin A, neuron specific enolase and serotonin expressing tumor cells. The expression of various markers in cells was analyzed and correlated with tumor DNA ploidy, disease grade and stage, PSA and clinical course in patients with prostate cancer. RESULTS Enrolled in our study were 31 patients with hyperplastic prostate tissue and 30 with prostatic carcinoma. Followup in cancer cases was 1 to 9 years (mean 3.7). During followup 9 patients (30%) died of cancer. We noted DNA content aneuploidy in 5 cases (16.7%) of prostate carcinoma. Chromogranin A, neuron specific enolase and serotonin were expressed in 80%, 43% and 77% of cases of prostate carcinoma and in 29%, 10% and 36% of hyperplastic tissue, respectively. Larger prostates had no higher content of various neuroendocrine cells than smaller prostates. There was higher expression of neuropeptides in carcinomatous than in hyperplastic tissue. Of the 3 peptides chromogranin A was significantly related to all parameters, including Gleason score, tumor stage, PSA and patient survival. In addition to PSA, neuron specific enolase was also closely associated with other clinicopathological parameters. Serotonin was significantly related to patient survival only but we noted no correlation with Gleason score, tumor stage or PSA. In regard to factors predictive of patient prognosis expression of the 3 neuropeptides in tumor cells, Gleason score, tumor stage and PSA were closely related to patient survival in this study CONCLUSIONS The growth of hyperplastic prostate tissue is related to neuroendocrine cell activity. The chromogranin A marker has the highest expression in prostate cancer. Neuroendocrine cells may represent an independent indicator of poor prognosis in patients with prostate carcinoma.
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Affiliation(s)
- D S Yu
- Uro-Oncology Laboratory, Division of Urology, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, National Defense College, Taipei, Taiwan, Republic of China
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Abstract
OBJECTIVES To characterize which genomic alterations occur in bladder cancers of different grades and stages, and to evaluate the prognostic implication of chromosomal imbalances. Materials and methods Twelve transitional cell carcinoma cell lines were used to study chromosomal aberrations, using comparative genomic hybridization to examine metaphase cells. RESULTS There was a mean of 6.0 aberrations per tumour with 4.9 gains and 1.08 deletions per tumour cell line. The mean number of aberrations was the same in grade 2 and 3 tumours. High-stage (>/= T2) carcinomas had markedly more genomic gains than had low-stage (T1) tumours, with 7.2 gains and 1.3 deletions per >/= T2 tumour, and 2.7 gains and 0.8 deletions per T1 tumour, although the difference was not statistically significant. The most frequent changes were gains of chromosome 1 (seven), 9 and 16 (six), and losses of chromosomes 14 (three), 21 and Y (two). The changes 1p+, 3p+, 9q+, 14p-, 16q+ and Yp- were significantly more frequent in low-grade tumours, with 1p+, 3p+ and Yq- the most frequent in stage T1 tumours, and 16p+, 9q+ and 13q- the most frequent in stage >/= T2 tumours. Conclusion These findings indicate several genomic regions in chromosomes 1, 9, 14 and 16 that may carry genes for the development and progression of bladder cancers.
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Affiliation(s)
- D S Yu
- Uro-Oncology Laboratory, Division of Urology, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, National Defense College, Taipei, Taiwan, Republic of China
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Yu DS, Wu CJ, Chang SY. Growth pattern of renal angiomyolipoma on computed tomography: report of two cases. J Formos Med Assoc 2001; 100:60-2. [PMID: 11265264] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
Abstract
The incidence of renal angiomyolipoma is increased in patients with tuberous sclerosis. Renal angiomyolipomas frequently exhibit both intratumoral and subcapsular or perirenal hemorrhage when they grow into the extrarenal space. Evidence of serial morphologic change is crucial to decision-making for surgical exploration in patients with growing renal angiomyolipomas. We report two cases of angiomyolipoma of the kidney with expansion of an angiomyolipoma into the subcapsular region. Neither patient had tuberous sclerosis and both developed bleeding when the mushroom-shaped tumor reached the extrarenal space. These cases suggest that expansion of the tumor into the subcapsular region is indicative of impending rupture of a renal angiomyolipoma.
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Affiliation(s)
- D S Yu
- Department of Surgery (Urology), Tri-Service General Hospital, National Defense Medical Center, National Defense College, Taipei, Taiwan
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Abstract
The BRCA1 C-terminal (BRCT) domain is present in a number of proteins that are involved in various aspects of chromosomal events. The BRCT domain of BRCA1 is important for its function in DNA repair and transcriptional activation. When tethered to chromosomal DNA, this region of BRCA1 is capable of inducing changes in chromatin structure. Despite the sequence homology and functional proximity shared by the BRCT-containing proteins, it is not clear whether different BRCT domains confer a common biochemical activity. Much less is known about the functional significance of the characteristic amino acid residues in the BRCT motif. Here, we show that chromatin remodeling and transcription activation is not a common feature of BRCT domains. However, the BRCT domain of the multi-functional repressor-activator protein 1 (RAP1) can activate transcription and remodel chromatin in a manner similar to that shown for the BRCA1 BRCT domain. Most of the conserved amino acid residues in the second BRCA1 BRCT domain are essential for its function in transcriptional activation. In contrast, mutations of many analogous amino acid residues in the RAP1 BRCT domain greatly elevate the transcriptional activity. These data indicate that the conserved residues in these two BRCT domains may play different roles in transcriptional activation.
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Affiliation(s)
- T Miyake
- Department of Biochemistry and Molecular Genetics, School of Medicine, University of Virginia, Charlottesville, Virginia 22908, USA
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Beauchamp JR, Heslop L, Yu DS, Tajbakhsh S, Kelly RG, Wernig A, Buckingham ME, Partridge TA, Zammit PS. Expression of CD34 and Myf5 defines the majority of quiescent adult skeletal muscle satellite cells. J Cell Biol 2000; 151:1221-34. [PMID: 11121437 PMCID: PMC2190588 DOI: 10.1083/jcb.151.6.1221] [Citation(s) in RCA: 637] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Skeletal muscle is one of a several adult post-mitotic tissues that retain the capacity to regenerate. This relies on a population of quiescent precursors, termed satellite cells. Here we describe two novel markers of quiescent satellite cells: CD34, an established marker of hematopoietic stem cells, and Myf5, the earliest marker of myogenic commitment. CD34(+ve) myoblasts can be detected in proliferating C2C12 cultures. In differentiating cultures, CD34(+ve) cells do not fuse into myotubes, nor express MyoD. Using isolated myofibers as a model of synchronous precursor cell activation, we show that quiescent satellite cells express CD34. An early feature of their activation is alternate splicing followed by complete transcriptional shutdown of CD34. This data implicates CD34 in the maintenance of satellite cell quiescence. In heterozygous Myf5(nlacZ/+) mice, all CD34(+ve) satellite cells also express beta-galactosidase, a marker of activation of Myf5, showing that quiescent satellite cells are committed to myogenesis. All such cells are positive for the accepted satellite cell marker, M-cadherin. We also show that satellite cells can be identified on isolated myofibers of the myosin light chain 3F-nlacZ-2E mouse as those that do not express the transgene. The numbers of satellite cells detected in this way are significantly greater than those identified by the other three markers. We conclude that the expression of CD34, Myf5, and M-cadherin defines quiescent, committed precursors and speculate that the CD34(-ve), Myf5(-ve) minority may be involved in maintaining the lineage-committed majority.
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Affiliation(s)
- J R Beauchamp
- Muscle Cell Biology Group, Medical Research Council Clinical Sciences Centre, Imperial College School of Medicine, Hammersmith Hospital, London, W12 ONN United Kingdom.
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Abstract
BACKGROUND The '2 week wait' directive (Health Service Circular (HSC) 1998/242) guaranteeing that 'everyone with suspected breast cancer will be able to see a specialist within two weeks of their general practitioner (GP) deciding they need to be seen urgently' is a unique audited approach to access for the British National Health Service, the effects of which have been assessed in a non-academic symptomatic breast clinic. METHODS New GP referrals (n = 607) were reviewed prospectively in two comparable 3-month intervals, beginning 1 April 1998 and 1 April 1999, to determine the probability of a breast cancer diagnosis from the referral letter and the effects of the directive on waiting times for appointments and utilization of clinics. RESULTS The urgency of referral was not specified in 53 per cent of GP referrals. For the 'urgent' cases (25 per cent of all new referrals) the probability of a final diagnosis of breast cancer was 0.19. The breast specialists prospectively achieved a rate of 0.26 from 99 per cent of the same referral letters. 'Urgent' referrals did not wait significantly longer in 1999 (median 9 versus 10 days) but waiting times for new appointments overall increased (13 versus 16 days; P < 0.01), and this was greatest for 'routine' [14] versus 21 days; P < 0.001). These changes were caused by an increase in the number of clinic appointments, due to significant increases in median number of visits to diagnosis or discharge and clinic non-attendance in 1999, resulting in overbooking. Telephonic communications were associated with faster median access times (fax 8 days; telephone 2 days), relative to mailed [19] days) (P < 0.01). CONCLUSION Breast specialists were better overall at assessing the probability of a breast cancer diagnosis. The waiting time for 'urgent' appointments was unchanged following HSC 1998/242, but there was an increased wait for other patients, especially those assessed as having a lower probability of cancer.
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Affiliation(s)
- P J Cant
- Combined Breast Clinic, Rotherham General Hospitals Trust, Moorgate Road, Rotherham S60 2UD, UK
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Sun GH, Lin YC, Cha TL, Yu DS, Chang SY, Liu HW. Conjugation of maturation-related wheat-germ-lectin-binding proteins to caput epididymal sperm in co-cultures with corpus epididymal epithelial cells of BALB/c mouse. Arch Androl 2000; 45:43-52. [PMID: 10959502 DOI: 10.1080/014850100410015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
In BALB/c mice, two maturation-related wheat-germ-binding glycoproteins (GP-49 and GP-83) are synthesized and secreted by corpus and cauda epididymis. A co-culture technique was used to investigate these glycoproteins in principal cells of corpus epididymis and the conjugation of these molecules on caput sperm. The principal cells were recovered from corpus epididymides of 4-week-old mice and cultured in RPMI 1640 medium supplemented with 10% fetal calf serum. After culturing for 3-4 days, most cells revealed epithelial cell-specific keratins in immunofluorescent localization with monoclonal antibody. By electron microscopy, a prominent nucleolus with well-extended euchromatin was revealed in the nucleus and the cytoplasm contained multivesicular bodies, and a well-developed Golgi apparatus with endoplasmic reticulum. By SDS-PAGE, GP-83 and GP-49 were revealed in the cell extracts and cell culture supernatants after incubation with 35S-methionine. Radiolabeled binding sites were also found on the surface of caput sperm co-cultured with the principal cells for 4 h in the presence of 35S-methionine. WGA-binding glycoproteins may be synthesized and secreted by the principal cells of corpus epididymis and conjugated to caput sperm during the epididymal transit.
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Affiliation(s)
- G H Sun
- Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China
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Sun GH, Lee SS, Yu DS, Chen HI, Chang SY. Successful treatment of azoospermia secondary to ejaculatory duct cyst. Arch Androl 2000; 45:25-8. [PMID: 10959499] [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: 02/17/2023]
Abstract
Ejaculatory duct obstruction is considered a rare cause of infertility. Two cases are reported of an ejaculatory duct cyst with azoospermia preoperatively diagnosed by transrectal ultrasonography. The diagnosis of ejaculatory duct obstruction in one patient was confirmed by vasography with a combined iodinated contrast medium and methylene blue solution for radiological and direct visualization. Transrectal puncture and contrast filling of the cyst under the transrectal ultrasonographic guidance diagnosed the other patient. On the basis of these findings transurethral unroofing of the cyst was performed successfully. Transrectal ultrasonography facilitates evaluation and treatment of azoospermia caused by ejaculatory duct obstruction and may minimize the need for more invasive studies in such cases.
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Affiliation(s)
- G H Sun
- Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China.
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Lee SS, Sun GH, Yu DS, Chen HI, Chang SY. Giant hydronephrosis of a duplex system associated with ureteral ectopia: a cause of retrograde ejaculation. Arch Androl 2000; 45:19-23. [PMID: 10959498 DOI: 10.1080/014850100409972] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Retrograde ejaculation is an extremely rare complication of the ectopic ureter or ectopic ureterocele. In the literature, only two cases have been reported worldwide. In this article the authors describe a patient who has a completely duplicated collecting system with massive dilatation of the upper pole system, which has manifested as a huge abdominal and retroperitoneal mass, complicated by retrograde ejaculation.
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Affiliation(s)
- S S Lee
- Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China
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