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Wei X, Wu HY, Pu XH, Wang XD, Li ZW, Sun Q. [NTRK-rearranged spindle cell neoplasm: report of a case]. Zhonghua Bing Li Xue Za Zhi 2023; 52:1278-1280. [PMID: 38058049 DOI: 10.3760/cma.j.cn112151-20230831-00113] [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: 12/08/2023]
Affiliation(s)
- X Wei
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - H Y Wu
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - X H Pu
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - X D Wang
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Z W Li
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Q Sun
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
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Chen TT, Wang XD, Li ZW, Pu XH, Xu YM, Wang DM, Li RT, Wang SF, Chen J, Meng FQ. [Femoral EWSR1-NFATC2 sarcoma: report of a case]. Zhonghua Bing Li Xue Za Zhi 2023; 52:940-943. [PMID: 37670626 DOI: 10.3760/cma.j.cn112151-20221229-01079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Affiliation(s)
- T T Chen
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - X D Wang
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Z W Li
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - X H Pu
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Y M Xu
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - D M Wang
- Department of Imaging, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - R T Li
- Department of Oncology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - S F Wang
- Department of Orthopedics, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - J Chen
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - F Q Meng
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
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Lai YM, Li ZW, Li H, Wu Y, Shi YF, Zhou LX, Lou YT, Cui CL. [Clinicopathological features and prognosis of anorectal melanoma: A report of 68 cases]. Beijing Da Xue Xue Bao Yi Xue Ban 2023; 55:262-269. [PMID: 37042136 PMCID: PMC10091247] [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: 04/13/2023]
Abstract
OBJECTIVE To investigate the clinicopathological characteristics of anorectal mucosal melanoma (ARMM), and to evaluate the prognostic factors. METHODS A total of 68 primary ARMM surgical specimens from 2010 to 2018 were retrospectively studied. Slides were reviewed to evaluate pathological features. Slingluff staging method was used for staging. RESULTS (1) Clinical features: The median age at diagnosis in this group was 61.5 years, with a male-to-female ratio 1 ∶1.62. The most common complaint was blooding (49 cases). For anatomic site, anorectum was the prevalent (66.2%), followed by rectum (20.6%). At the time of diagnosis, 28 cases were stage Ⅰ (localized stage, 41.2%), 25 cases were stage Ⅱ (regional lymph node metastasis, 36.8%), and 15 cases were stage Ⅲ (distant metastasis, 22.1%). Five patients underwent wide local excision, the rest abdominoperineal resection, and 48 patients received adjuvant therapy after surgery. (2) Pathological features: Grossly 88.2% of the tumors were exophytic polypoid masses, with the median tumor size 3.5 cm and the median tumor thickness 1.25 cm. Depth of invasion below lamina muscularis mucosae ranged from 0-5.00 cm (median 1.00 cm). The deepest site of tumor invasion reached muscular layer in 27 cases, and perirectal tissue in 16 cases. Melanin pigmentation was absent or not obvious in 67.6% of the cases. The predominant cytology was epithelioid (45 cases, 66.2%). The rate for ulceration, necrosis, lymphovascular invasion, and perineural invasion was 89.7%, 35.3%, 55.9%, and 30.9%, respectively. The median mitotic count was 18/mm2. The positive rate of S100, HMB-45 and Melan-A were 92.0%, 92.6% and 98.0%, respectively. The median of Ki-67 was 50%. The incidences of mutations within CKIT, BRAF and NRAS genes were 17.0% (9 cases), 3.8% (2 cases) and 9.4% (5 cases), respectively. (3) Prognosis: Survival data were available in 66 patients, with a median follow-up of 17 months and a median survival time of 17.4 months. The 1-year, 2-year and 5-year overall survival rate was 76.8%, 36.8% and 17.2%, respectively. The rate of lymphatic metastasis at diagnosis was 56.3%. Forty-nine patients (84.5%) suffered from distant metastasis, and the most frequent metastatic site was liver. Univariate analysis revealed that tumor size (>3.5 cm), depth of invasion below lamina muscularis mucosae (>1.0 cm), necrosis, lymphovascular invasion, BRAF gene mutation, lack of adjuvant therapy after surgery, deep site of tumor invasion, and high stage at diagnosis were all poor prognostic factors for overall survival. Multivariate model showed that lymphovascular invasion and BRAF gene mutation were independent risk factors for lower overall survival, and high stage at diagnosis showed borderline negative correlation with overall survival. CONCLUSION The overall prognosis of ARMM is poor, and lymphovascular invasion and BRAF gene mutation are independent factors of poor prognosis. Slingluff staging suggests prognosis effectively, and detailed assessment of pathological features, clear staging and genetic testing should be carried out when possible. Depth of invasion below lamina muscularis mucosae of the tumor might be a better prognostic indicator than tumor thickness.
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Affiliation(s)
- Y M Lai
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Z W Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - H Li
- Department of Pathology, Beijing Tsinghua Changgung Hospital; School of Clinical Medicine, Tsinghua University; Beijing 102218, China
| | - Y Wu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Y F Shi
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - L X Zhou
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Y T Lou
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - C L Cui
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Melanoma and Sarcoma, Peking University Cancer Hospital & Institute, Beijing 100142, China
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Li H, Lai YM, Wu Y, Li ZW. [Advances in molecular genetics of mucosal melanoma]. Zhonghua Bing Li Xue Za Zhi 2023; 52:205-208. [PMID: 36748149 DOI: 10.3760/cma.j.cn112151-20220506-00369] [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: 02/08/2023]
Affiliation(s)
- H Li
- Department of Pathology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing 102218, China
| | - Y M Lai
- Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education), Department of Pathology, Peking University Cancer Hospital and Beijing Institute for Cancer Research, Beijing 100142, China
| | - Y Wu
- Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education), Department of Pathology, Peking University Cancer Hospital and Beijing Institute for Cancer Research, Beijing 100142, China
| | - Z W Li
- Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education), Department of Pathology, Peking University Cancer Hospital and Beijing Institute for Cancer Research, Beijing 100142, China
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Li Y, Liu FL, Yuan J, Li ZW, Liu NX, Guan N. [Meta-analysis of the interventional effects of music therapy on pain and anxiety of burn patients in wound dressing change]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:1079-1084. [PMID: 36418266 DOI: 10.3760/cma.j.cn501120-20210716-00252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To evaluate the interventional effects of music therapy on pain and anxiety of burn patients in wound dressing change. Methods: The meta-analysis method was adopted. Databases including China National Knowledge Internet, Wanfang Database, and VIP database were retrieved with the search terms in Chinese version of ", , /, /", and PubMed, Embase, and Cochrane Library were retrieved with the search terms in English version of "music, burn, dressing change/wound dressing, pain/ache/sore" to obtain the publicly published randomized controlled trials on the application of music therapy for wound dressing change in burn patients from the establishment of each database to May 2021. The outcome indexes included pain score/percentage and anxiety score after dressing change. Rev Man 5.4 and Stata 14.0 statistical software were used to conduct a meta-analysis of eligible studies. Results: A total of 520 burn patients from 7 studies were included, including 260 patients in music therapy group who received music therapy and 260 patients in routine dressing change group who received routine dressing change. The bias risk of all the 7 included studies was uncertain. Compared with those in routine dressing change group, the pain percentages (relative risk=0.06, 95% confidence interval=0.01-0.41, P<0.01) and pain scores after dressing change (standardized mean difference (SMD)=-0.91, 95% confidence interval=-1.61--0.22, P<0.05) of patients in music therapy group were significantly lower. Subgroup analysis showed that music type and timing of intervention might be the source of heterogeneity in pain scores after dressing change. The anxiety scores of patients in music therapy group were significantly lower than those in routine dressing change group (SMD=-0.64, 95% confidence interval=-1.09--0.19, P<0.01). There was no publication bias in pain or anxiety scores after dressing change. Conclusions: Music therapy can relieve the pain and anxiety of burn patients during dressing change.
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Affiliation(s)
- Y Li
- School of Nursing and Health, Henan University, Kaifeng 475000, China
| | - F L Liu
- School of Nursing and Health, Henan University, Kaifeng 475000, China
| | - J Yuan
- Department of Endocrinology, Henan Provincial People's Hospital, Zhengzhou 450000, China
| | - Z W Li
- Department of Gastrointestinal Surgery, Henan Provincial People's Hospital, Zhengzhou 450000, China
| | - N X Liu
- School of Nursing and Health, Henan University, Kaifeng 475000, China
| | - Ningxiao Guan
- School of Nursing and Health, Henan University, Kaifeng 475000, China
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Yu H, Li ZW, Wang RR, Zhang W, Bai XL, Liang TB. [Outcome of pediatric-to-adult liver transplantation:a single-center study in China]. Zhonghua Wai Ke Za Zhi 2022; 60:915-921. [PMID: 36207980 DOI: 10.3760/cma.j.cn112139-20211216-00605] [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: 06/16/2023]
Abstract
Objective: To explore the outcome of the pediatric-to-adult liver transplantation, including postoperative complications and relevant factors which affecting graft survival. Methods: Data of 55 patients undergoing pediatric-to-adult liver transplantation at the First Affiliated Hospital of Zhejiang University between January 2015 and August 2021 were retrospectively analyzed. The donors consisted of 34 males and 21 females, and the age was (11.8±4.7) years (range: 1 to 17 years). Among the cases,17 cases (30.9%) were donation of brain death,32 cases (58.2%) were donation of cardiac death, and 6 cases (10.9%) were donation after brain death plus cardiac death. The recipients consisted of 32 males and 23 females, and the age was (51.6±10.1) years (range: 27 to 70 years). Among the recipients,10 cases (18.2%) were ABO-incompatible liver transplantation.The influencing factors of early graft survival were analyzed by Student t test,Mann-Whitney U test or χ2 test,respectively.Survival curve was drawn by Kaplan-Meier method.Logistic multivariate analysis was used to analyze the independent relevant factors of early postoperative graft loss. Results: Up to October 31,2021,the follow-up time (M(IQR)) was 36.0(43.1)months(range:5.9 to 81.7 months).There were 13 cases with graft loss (two of them underwent re-transplantation due to acute liver failure).The monofactor analysis indicated that cold ischemia time and donor-recipient blood group matching were the relevant factors affecting the early graft survival rate(both P<0.05).Logistic multivariate analysis showed that cold ischemia time and history of recipient gastrointestinal bleeding were independent relevant factors(both P<0.05).Postoperative hepatic artery thrombosis occurred in 3 cases(5.5%), portal vein thrombosis diagnosed in 4 cases(7.3%), portal vein stenosis occurred in 2 cases(3.6%),biliary complications diagnosed in 7 cases(12.7%), and small liver syndrome was found in 8 cases(14.5%). Conclusions: Adult liver transplantation with pediatric donor liver is an effective method to treat end-stage liver disease.Cold ischemia time and history of recipient gastrointestinal bleeding were independent relevant factors for the early graft survival.
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Affiliation(s)
- H Yu
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital,Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Z W Li
- Liver Transplant Center, the First Affiliated Hospital, Zhejing University School of Medicine, Hangzhou 310003, China
| | - R R Wang
- Department of Clinical Pharmacy, the First Affiliated Hosppital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - W Zhang
- Liver Transplant Center, the First Affiliated Hospital, Zhejing University School of Medicine, Hangzhou 310003, China
| | - X L Bai
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital,Zhejiang University School of Medicine, Hangzhou 310003, China
| | - T B Liang
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital,Zhejiang University School of Medicine, Hangzhou 310003, China
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Li ZW, Sun Q, Zheng Z, Yang LL, He L, Chen DN, Zhang B, Wu HY, Huang WB, Fan XS. [Clinicopathological features of colorectal amphicrine carcinoma]. Zhonghua Bing Li Xue Za Zhi 2022; 51:708-712. [PMID: 35922159 DOI: 10.3760/cma.j.cn112151-20220106-00007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the clinicopathological, immunophenotypic and molecular features of colorectal amphicrine carcinoma (AC). Methods: Eight cases of colorectal AC were collected at the Nanjing Drum Tower Hospital and Nanjing First Hospital, Nanjing, China from 2013 to 2020. The histopathological, immunohistochemical and molecular features were analyzed. The relevant literature was reviewed. Results: There were 6 males and 2 females, with an average age of 56 years (range 28-80 years). The tumor sites were as follows: 4 cases in sigmoid colon, 3 cases in rectum, and 1 case in transverse colon. Microscopically, there were three different patterns in the tumors, including nests with collagen hyperplasia, sheets of cells with scant stroma, and glandular or cribriform growth of goblet- or signet ring-like cells. The tumor cells generally had abundant cytoplasm with abundant mucin or eosinophilic granules. The nuclei were oval or irregular with fine chromatin and inconspicuous nucleoli. Mitotic figures were common. Neuroendocrine granules and mucin granules could be identified clearly under electron microscope. All cases showed frequent perineural and lymphovascular invasions, lymphatic metastasis, and advanced stage. Regarding immunohistochemical and specific stains, the tumor cells expressed more than two neuroendocrine markers, particularly CD56 and synaptophysin which were diffusely positive in 7 of the 8 cases. They also showed intracellular mucin in the amphicrine components which was positive for D-PAS. KRAS G12C or NRAS Q61 gene mutations were found in 2 patients. Among the six cases with complete follow-up, four of them died of the disease within three years of the diagnoses, while two were alive without known disease progression. Conclusions: Colorectal AC is a rare, distinct entity with both epithelial and neuroendocrine differentiation. It mainly occurs in the sigmoid colon and rectum. It typically has aggressive clinical courses, dismal prognosis and characteristic histological features and immunophenotype, which highlight the importance of recognizing this entity for clinicians and pathologists.
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Affiliation(s)
- Z W Li
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Q Sun
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Z Zheng
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - L L Yang
- Department of Pathology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - L He
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - D N Chen
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - B Zhang
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - H Y Wu
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - W B Huang
- Department of Pathology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - X S Fan
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
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Zhang W, Liu FQ, Zhang LP, Ding HG, Zhuge YZ, Wang JT, Li L, Wang GC, Wu H, Li H, Cao GH, Lu XF, Kong DR, Sun L, Wu W, Sun JH, Liu JT, Zhu H, Li DL, Guo WH, Xue H, Wang Y, Gengzang CJC, Zhao T, Yuan M, Liu SR, Huan H, Niu M, Li X, Ma J, Zhu QL, Guo WW, Zhang KP, Zhu XL, Huang BR, Li JN, Wang WD, Yi HF, Zhang Q, Gao L, Zhang G, Zhao ZW, Xiong K, Wang ZX, Shan H, Li MS, Zhang XQ, Shi HB, Hu XG, Zhu KS, Zhang ZG, Jiang H, Zhao JB, Huang MS, Shen WY, Zhang L, Xie F, Li ZW, Hou CL, Hu SJ, Lu JW, Cui XD, Lu T, Yang SS, Liu W, Shi JP, Lei YM, Bao JL, Wang T, Ren WX, Zhu XL, Wang Y, Yu L, Yu Q, Xiang HL, Luo WW, Qi XL. [Status of HVPG clinical application in China in 2021]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:637-643. [PMID: 36038326 DOI: 10.3760/cma.j.cn501113-20220302-00093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: The investigation and research on the application status of Hepatic Venous Pressure Gradient (HVPG) is very important to understand the real situation and future development of this technology in China. Methods: This study comprehensively investigated the basic situation of HVPG technology in China, including hospital distribution, hospital level, annual number of cases, catheters used, average cost, indications and existing problems. Results: According to the survey, there were 70 hospitals in China carrying out HVPG technology in 2021, distributed in 28 provinces (autonomous regions and municipalities directly under the central Government). A total of 4 398 cases of HVPG were performed in all the surveyed hospitals in 2021, of which 2 291 cases (52.1%) were tested by HVPG alone. The average cost of HVPG detection was (5 617.2±2 079.4) yuan. 96.3% of the teams completed HVPG detection with balloon method, and most of the teams used thrombectomy balloon catheter (80.3%). Conclusion: Through this investigation, the status of domestic clinical application of HVPG has been clarified, and it has been confirmed that many domestic medical institutions have mastered this technology, but it still needs to continue to promote and popularize HVPG technology in the future.
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Affiliation(s)
- W Zhang
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - F Q Liu
- Department of Interventional Radiology, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - L P Zhang
- Department of Radiology,Third Hospital of Taiyuan, Taiyuan 030012, China
| | - H G Ding
- Liver Disease Digestive Center,Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Y Z Zhuge
- Digestive Department,Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - J T Wang
- Department of Hepatobiliary Surgery, Xingtai People's Hospital, Xingtai 054001, China
| | - L Li
- Department of Interventional Radiology, the First Hospital of Lanzhou University, Lanzhou 730013, China
| | - G C Wang
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - H Wu
- Digestive Department, West China Hospital, Sichuan University, Chengdu 610044, China
| | - H Li
- Institute of Hepatology and Department of Infectious Disease, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - G H Cao
- Department of Radiology, Shulan Hospital, Hangzhou 310022, China
| | - X F Lu
- Digestive Department, West China Hospital, Sichuan University, Chengdu 610044, China
| | - D R Kong
- Digestive Department, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - L Sun
- Department of Gastroenterology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325001, China
| | - W Wu
- Department of Gastroenterology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325001, China
| | - J H Sun
- Hepatobiliary and Pancreatic Intervention Center , the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - J T Liu
- Digestive Department,Hainan Hospital of Chinese PLA General Hospital, Sanya 572013, China
| | - H Zhu
- The 1 st Department of Interventional Radiology, the Sixth People's Hospital of Shenyang, Shenyang 110006, China
| | - D L Li
- No. 900 Hospital of the Joint Logistic Support Force, Fuzhou 350025, China
| | - W H Guo
- Department of Interventional Radiology, Meng Chao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China
| | - H Xue
- Digestive Department, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Y Wang
- Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - C J C Gengzang
- Department of Interventional Radiology, the Fourth People's Hospital of Qinghai Province, Xining 810007, China
| | - T Zhao
- Department of Radiology,Sir Run Shaw Hospital, Zhejiang University, Hangzhou 310016, China
| | - M Yuan
- Department of Interventional Radiology Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - S R Liu
- Department of Infectious Disease,Qufu People's Hospital, Qufu 273199, China
| | - H Huan
- Digestive Department, Chengdu Office Hospital of Tibet Autonomous Region People's Government, Chengdu 610041, China
| | - M Niu
- Department of Interventional Radiology, the First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - X Li
- Department of Radiology,Tianjin Second People's Hospital, Tianjin 300192, China
| | - J Ma
- Department of Interventional Vascular Surgerg, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750002, China
| | - Q L Zhu
- Digestive Department,the Affiliated Hospital of Southwest Medical University, Luzhou 646099, China
| | - W W Guo
- Department of Interventional Radiology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - K P Zhang
- Department of Hepatobiliary Surgery, Xingtai People's Hospital, Xingtai 054001, China
| | - X L Zhu
- Department of Surgery, the First Hospital of Lanzhou University, Lanzhou 730013, China
| | - B R Huang
- Department of Interventional Vascular Surgery,Jingzhou First People's Hospital, Jingzhou, China
| | - J N Li
- Liver Diseases Department,Jiamusi Infectious Disease Hospital, Jiamusi 154015, China
| | - W D Wang
- Hepatobiliary, Pancreatic and Spleen Surgery Department,Shunde Hospital, Southern Medical University, Foshan 528427, China
| | - H F Yi
- Digestive Department,Wuhan First Hospital, Wuhan 430030, China
| | - Q Zhang
- Interventional Vascular Surgery Department, Affiliated Zhongda Hospital of Southeast University, Nanjing 210009, China
| | - L Gao
- Oncology and Vascular Interventional Department, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - G Zhang
- Digestive Department, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning 530016, China
| | - Z W Zhao
- Department of Interventional Radiology, Lishui Municipal Central Hospital, Zhejiang University School of Medicine, Lishui 323030, China
| | - K Xiong
- Digestive Department, the Second Affiliated Hospital of Nanchang University, Nanchang 330008, China
| | - Z X Wang
- Inner Mongolia Medical University Affiliated Hospital, Hohhot 010050, China
| | - H Shan
- Interventional Medicine Center, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China
| | - M S Li
- Department of Endovascular Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - X Q Zhang
- Digestive Department, the Second Hospital of Hebei Medical University, Shijiazhuang 050004, China
| | - H B Shi
- Department of Interventional Radiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
| | - X G Hu
- Interventional Radiology Department,Jinhua Municipal Central Hospital, Jinhua 321099, China
| | - K S Zhu
- Interventional Radiology Department, the Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510260, China
| | - Z G Zhang
- Department of Liver Surgery,Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430014, China
| | - H Jiang
- Infectious Disease Department,Second Affiliated Hospital, Military Medical University of the Air Force, Xi'an 710038, China
| | - J B Zhao
- Department of Vascular and Interventional Radiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - M S Huang
- Interventional Radiology Department, the Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510000, China
| | - W Y Shen
- Digestive Department,Fuling Hospital Affiliated to Chongqing University, Chongqing 400030, China
| | - L Zhang
- Hepatobiliary Pancreatic Center,Tsinghua Changgung Hospital, Beijing 102200, China
| | - F Xie
- Function Department,Lanzhou Second People's Hospital, Lanzhou 730030, China
| | - Z W Li
- Hepatobiliary Surgery Department,Shenzhen Third People's Hospital, Shenzhen518112, China
| | - C L Hou
- Department of Interventional Radiology, the First Affiliated Hospital of USTC, Hefei 230001, China
| | - S J Hu
- Digestive Department,People's Hospital of Ningxia Hui Autonomous Region, Yinchuan 750002, China
| | - J W Lu
- Department of Interventional Radiology, Qufu People's Hospital, Qufu 273199, China
| | - X D Cui
- Department of Interventional Radiology, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning 530016, China
| | - T Lu
- Department of Gastroenterology, Yangquan Third People's Hospital, Yangquan 045099,China
| | - S S Yang
- Department of Gastroenterology, General Hospital of Ningxia Medical University , Yinchuan 750003, China
| | - W Liu
- Department of Interventional Radiology, Lishui People's Hospital, Zhejiang Province, Lishui 323050, China
| | - J P Shi
- Department of Liver Diseases, Affiliated Hospital of Hangzhou Normal University, Hangzhou 310015, China
| | - Y M Lei
- Interventional Radiology Department, People's Hospital of Tibet Autonomous Region, Lhasa 850001, China
| | - J L Bao
- Department of Gastroenterology, Shannan people's Hospital,Shannan 856004, China
| | - T Wang
- Department of Interventional Radiology, Yantai Yuhuangding Hospital Affiliated to Qingdao University, Yantai 264099,China
| | - W X Ren
- Interventional Treatment Center, the First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011,China
| | - X L Zhu
- Interventional Radiology Department, the First Affiliated Hospital of Suzhou University, Suzhou 215006, China
| | - Y Wang
- Department of Interventional Vascular Surgery, the Second Affiliated Hospital of Hainan Medical College, Haikou 570216, China
| | - L Yu
- Department of Interventional Radiology, Sanming First Hospital Affiliated to Fujian Medical University,Sanming 365001,China
| | - Q Yu
- Interventional Radiology Department, Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - H L Xiang
- Department of Gastroenterology, Tianjin Third Central Hospital, Tianjin 300170, China
| | - W W Luo
- Deparment of Infectious Diseases, the Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - X L Qi
- Center of Portal Hypertension Department of Radiology, Zhongda Hospital of Southeast University, Nanjing 210009, China
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9
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Zhang XY, Zhu HT, Li XT, Li YJ, Li ZW, Wang WH, Wu AW, Sun YS, Zhang L. [A prediction model of pathological complete response in patients with locally advanced rectal cancer after PD-1 antibody combined with total neoadjuvant chemoradiotherapy based on MRI radiomics]. Zhonghua Wei Chang Wai Ke Za Zhi 2022; 25:228-234. [PMID: 35340172 DOI: 10.3760/cma.j.cn441530-20211222-00527] [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 construct a prediction model of pathologic complete response (pCR) in locally advanced rectal cancer patients who received programmed cell death protein-1 (PD-1) antibody and total neoadjuvant chemoradiotherapy by using radiomics based on MR imaging data and to investigate its predictive value. Methods: A clinical diagnostic test study was carried out. Clinicopathalogical and radiological data of 38 patients with middle-low rectal cancer who received PD-1 antibody combined with total neoadjuvant chemoradiotherapy and underwent TME surgery from January 2019 to September 2021 in our hospital were retrospectively collected. Among 38 patients, 23 were males and 15 were females with a median age of 68 (47-79) years and 13 (34.2%) a chieved pCR. These 38 patients were stratified and randomly divided into the training group (n=26) and test group (n=12) for modeling. All the patients underwent rectal MRI before treatment. The clinical, imaging and radiomics features of all the patients were collected, and the clinical feature model and radiomics model were constructed. The receiver operating characteristic (ROC) curves of each model were drawn, and the constructed model was evaluated through the area under the curve (AUC), accuracy, sensitivity, specificity, positive predictive value and negative predictive value. Results: There were no significant differences in age, gender, primary location of tumor and postoperative pathology between the two groups (all P>0.05). Forty-one features were extracted from region of interest in each modality, including 9 first-order features, 24 gray level co-occurrence matrix features and 8 shape features. From 38 patients, 41 features were extracted from each imaging modality of baseline and preoperative DWI and T2WI images, totally 164 features. Only 4 features were preserved after correlation analysis between each pair of features and t-test between pCR and non-pCR subjects. After LASSO cross validation, only the first-order skewness of the baseline DWI image before treatment and the volume in the baseline T2WI image before treatment were retained. The area under the curve, sensitivity, specificity, positive and negative predictive values of the prediction model established by applying these two features in the training group and the test group were 0.856 and 0.844, 77.8% and 100.0%, 88.2% and 75.0%, 77.8% and 66.7%, 88.2% and 100.0%, respectively. The decision curve analysis of the radiomics model showed that the strategy of this model in predicting pCR was better than that in treating all the patients as pCR and that in treating all the patients as non-pCR. Conclusion: The pCR prediction model for rectal cancer patients receiving PD-1 antibody combined with total neoadjuvant radiochemotherapy based on MRI radiomics has the potential to be used in clinical screening or rectal cancer patients who can be spared from radical surgery.
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Affiliation(s)
- X Y Zhang
- Department of Radiology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - H T Zhu
- Department of Radiology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - X T Li
- Department of Radiology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - Y J Li
- Gastrointestinal Cancer Center, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - Z W Li
- Department of Pathology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - W H Wang
- Department of Radiation Oncology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - A W Wu
- Gastrointestinal Cancer Center, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - Y S Sun
- Department of Radiology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - L Zhang
- MRI Department, the First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou 450000, China
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10
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Li YJ, Zhang L, Dong QS, Cai Y, Zhang YZ, Wang L, Yao YF, Zhang XY, Li ZW, Li YH, Sun YS, Wang WH, Wu AW. [Short-term outcome of programmed cell death protein1 (PD-1) antibody combined with total neoadjuvant chemoradiotherapy in the treatment of locally advanced middle-low rectal cancer with high risk factors]. Zhonghua Wei Chang Wai Ke Za Zhi 2021; 24:998-1007. [PMID: 34823301 DOI: 10.3760/cma.j.cn441530-20210927-00386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective: Total neoadjuvant chemoradiotherapy is one of the standard treatments for locally advanced rectal cancer. This study aims to investigate the safety and feasibility of programmed cell death protein 1 (PD-1) antibody combined with total neoadjuvant chemoradiotherapy in the treatment of locally advanced middle-low rectal cancer with high-risk factors. Methods: A descriptive cohort study was conducted. Clinicopathological data of 24 patients with locally advanced middle-low rectal cancer with high-risk factors receiving PD-1 antibody combined with neoadjuvant chemoradiotherapy in Gastrointestinal Cancer Center, Unit III, Peking University Cancer Hospital between January 2019 and April 2021 were retrospectively analyzed. Inclusion criteria: (1) rectal adenocarcinoma confirmed by pathology; patient age of ≥ 18 years and ≤ 80 years; (2) the distance from low margin of tumor to anal verge ≤ 10 cm under sigmoidoscopy; (3) ECOG performance status score 0-1; (4) clinical stage T3c, T3d, T4a or T4b, or extramural venous invasion (EMVI) (+) or mrN2 (+) or mesorectal fasciae (MRF) (+) based on MRI; (5) no evidence of distant metastases; (6) no prior pelvic radiation therapy, no prior chemotherapy or surgery for rectal cancer; (7) no systemic infection requiring antibiotic treatment and no immune system disease. Exclusion criteria: (1) anticipated unresectable tumor after neoadjuvant treatment; (2) patients with a history of a prior malignancy within the past 5 years, or with a history of any arterial thrombotic event within the past 6 months; (3) patients received other types of antitumor or experimental therapy; (4) women who were pregnant or breast-feeding; (5) patients with any other concurrent medical or psychiatric condition or disease; (6) patients received immunotherapy (PD-1 antibody). The neoadjuvant therapy consisted of three stages: PD-1 antibody (sintilimab 200 mg, IV, Q3W) combined with CapeOx regimen for three cycles; long-course intensity modulated radiation therapy (IMRT) with gross tumor volume (GTV) 50.6 Gy/CTV 41.8 Gy/22f; CapeOx regimen for two cycles after radiotherapy. After oncological evaluation following the end of the third stage of treatment, surgery or watch and wait would be carried out. Surgical safety, histopathological changes and short-term oncological outcome were analyzed. Results: There were 15 males and 9 females with a median age of 65 (47-78) years. Median distance from the lower margin of the tumor to the anal verge was 4 (3-7) cm. The median maximal diameter of the tumor was 5.1 (2.1-7.5) cm. Twenty patients were cT3, 4 were cT4, 8 were cN1, 5 were cN2a, 11 were cN2b. Ten cases were MRF (+) and 10 were EMVI (+). All the patients were mismatch repair proficient (pMMR). During the neoadjuvant treatment period, 6 patients (25.0%) developed grade 1-2 treatment-related adverse events, including 3 immune-related adverse events. As of April 30, 2021, 20 patients (83.3%, 20/24) had received surgical resection, including 19 R0 resections and 16 sphincter-preservation operations. Morbidity of postoperative complication was 25.0% (5/20), including 2 cases of Clavien-Dindo grade II (1 of anastomotic bleeding and 1 of pseudomembranous enteritis), 3 cases of grade I anastomotic stenosis. Pathological complete response (pCR) rate was 30.0% (6/20) and major pathological response rate was 20.0% (4/20). None of Ras/Raf mutants had pCR or cCR (0/5), while 6 of 17 Ras/Raf wild-type patients had pCR and 3 had cCR, which was significantly higher than that of Ras/Raf mutants (P<0.01). Nine of 16 patients with Ras/Raf wild-type and differentiated adenocarcinoma had pCR or cCR. Among other 4 patients without surgery, 3 patients preferred watch and wait strategy because their tumors were assessed as clinical complete response (cCR), while another one patient refused surgery as the tumor remained stable. After a median follow-up of 11 (6-24) months, only 1 patient with signet ring cell carcinoma had recurrence. Conclusions: PD-1 antibody combined with total neoadjuvant chemoradiotherapy in the treatment of locally advanced rectal cancer has quite good safety and histopathological regression results. Combination of histology and genetic testing is helpful to screen potential beneficiaries.
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Affiliation(s)
- Y J Li
- Gastrointestinal Cancer Center, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - L Zhang
- Department of Pathology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - Q S Dong
- Gastrointestinal Cancer Center, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - Y Cai
- Department of Radiation Oncology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - Y Z Zhang
- Department of Radiation Oncology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - L Wang
- Gastrointestinal Cancer Center, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - Y F Yao
- Gastrointestinal Cancer Center, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - X Y Zhang
- Department of Radiology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - Z W Li
- Department of Pathology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - Y H Li
- Department of Radiation Oncology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - Y S Sun
- Department of Radiology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - W H Wang
- Department of Radiation Oncology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
| | - A W Wu
- Gastrointestinal Cancer Center, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing 100142, China
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Li ZW, Zheng Z, Chen JY, Wu HY, Fan XS, Yu HP. [The application value of PD-L1 detection in core needle biopsy in triple-negative breast cancer]. Zhonghua Bing Li Xue Za Zhi 2021; 50:1169-1171. [PMID: 34619873 DOI: 10.3760/cma.j.cn112151-20210120-00059] [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)
- Z W Li
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Z Zheng
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - J Y Chen
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - H Y Wu
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - X S Fan
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - H P Yu
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
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12
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Li YD, Liu X, Li ZW, Wang WJ, Li YM, Cao ZP, Luan P, Xiao F, Gao HH, Guo HS, Wang N, Li H, Wang SZ. A combination of genome-wide association study and selection signature analysis dissects the genetic architecture underlying bone traits in chickens. Animal 2021; 15:100322. [PMID: 34311193 DOI: 10.1016/j.animal.2021.100322] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [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: 01/22/2021] [Revised: 06/23/2021] [Accepted: 06/25/2021] [Indexed: 01/01/2023] Open
Abstract
The bones of chicken play an important role in supporting and protecting the body. The growth and development of bones have a substantial influence on the health and production performance in chickens. However, genetic architecture underlying chicken bone traits is not well understood. The objectives of this study are to dissect the genetic basis of bone traits in chickens and to identify valuable genes and genetic markers for chicken breeding. We performed a combination of genome-wide association study (GWAS) and selection signature analysis (fixation index values and nucleotide diversity ratios) in an F2 crossbred experimental population with different genetic backgrounds (broiler × layer) to identify candidate genes and significant variants related to femur, shank, keel length, chest width, metatarsal claw weight, metatarsal length, and metatarsal circumference. A total of 545 individuals were genotyped based on the whole genome re-sequencing method (26 F0 individuals were re-sequenced at 10 × coverage; 519 F2 individuals were re-sequenced at 3 × coverage). A total of 2 028 112 single-nucleotide polymorphisms (SNPs) remained to carry out analysis after quality control and imputation. The integration of GWAS and selection signature analysis indicated that all significant SNPs responsible for bone traits were mainly localized on chicken chromosomes 1, 4, and 27. Finally, we identified 21 positional candidate genes that might regulate chicken bone growth and development, including LRCH1, RB1, FNDC3A, MLNR, CAB39L, FOXO1, LHFP, TRPC4, POSTN, SMAD9, RBPJ, PPARGC1A, SLIT2, NCAPG, NKX3-2, CPZ, SPOP, NGFR, SOST, ZNF652, and HOXB3. Additionally, an array of uncharacterized genes was identified. The findings provide an in-depth understanding of the genetic architecture of chicken bone traits and offer a molecular basis for applying genomics in practical chicken breeding.
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Affiliation(s)
- Y D Li
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, PR China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, PR China; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, PR China
| | - X Liu
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, PR China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, PR China; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, PR China
| | - Z W Li
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, PR China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, PR China; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, PR China
| | - W J Wang
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, PR China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, PR China; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, PR China
| | - Y M Li
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, PR China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, PR China; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, PR China
| | - Z P Cao
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, PR China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, PR China; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, PR China
| | - P Luan
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, PR China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, PR China; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, PR China
| | - F Xiao
- Fujian Sunnzer Biotechnology Development Co., Ltd, Guangze, Fujian Province 354100, PR China
| | - H H Gao
- Fujian Sunnzer Biotechnology Development Co., Ltd, Guangze, Fujian Province 354100, PR China
| | - H S Guo
- Fujian Sunnzer Biotechnology Development Co., Ltd, Guangze, Fujian Province 354100, PR China
| | - N Wang
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, PR China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, PR China; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, PR China
| | - H Li
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, PR China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, PR China; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, PR China
| | - S Z Wang
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, PR China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, PR China; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, PR China.
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13
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Wang WJ, Guo YQ, Xie KJ, Li YD, Li ZW, Wang N, Xiao F, Guo HS, Li H, Wang SZ. A functional variant in the promoter region of IGF1 gene is associated with chicken abdominal fat deposition. Domest Anim Endocrinol 2021; 75:106584. [PMID: 33276215 DOI: 10.1016/j.domaniend.2020.106584] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 10/26/2020] [Accepted: 11/03/2020] [Indexed: 12/29/2022]
Abstract
Insulin-like growth factor 1 (IGF1) plays an important role in the regulation of cell growth, proliferation, differentiation, and apoptosis. Previously several studies revealed that genotypes of chicken IGF1 c.-366A > C were significantly associated with abdominal fat weight and body weight in chickens. But the underlying mechanism is still unknown. To investigate the mechanism underlying the association, herein, we performed IGF1 gene mRNA expression profiling, a dual-luciferase reporter assay and electrophoretic mobility shift assay (EMSA). Quantitative real-time PCR results showed that IGF1 gene was widely expressed in 14 tissues. The mRNA expression levels of IGF1 gene in both abdominal fat and jejunum were significantly higher in fat broilers than in lean broilers. However, the opposite results were observed in the pancreas. The reporter gene assay showed that the promoter luciferase activity of allele A was significantly higher than that of allele C (P < 0.05). In addition, the luciferase activity of allele A promoted by the transcription factor AP1 and OCT1 was higher than that of allele C (P < 0.05). Electrophoretic mobility shift assay result showed that allele A binding to the transcription factor AP1 and OCT1 was stronger than that of allele C. All in all, our data indicated that the IGF1 gene c.-366A > C is a functional SNP responsible for chicken adipose deposition.
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Affiliation(s)
- W J Wang
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, China; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Y Q Guo
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, China; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - K J Xie
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, China; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Y D Li
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, China; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - Z W Li
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, China; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - N Wang
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, China; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - F Xiao
- Fujian Sunnzer Biotechnology Development Co, Ltd, Guangze, Fujian Province 354100, China
| | - H S Guo
- Fujian Sunnzer Biotechnology Development Co, Ltd, Guangze, Fujian Province 354100, China
| | - H Li
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, China; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
| | - S Z Wang
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin 150030, China; Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin 150030, China; College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China.
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14
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Li ZW, Yang GQ, Dou JT, Lyu ZH, Pei Y, Du J, Ba JM, Guo QH, Mu YM. [Clinical aspects of pregnancy-related lymphocytic hypophysitis]. Zhonghua Yi Xue Za Zhi 2020; 100:3314-3318. [PMID: 33202493 DOI: 10.3760/cma.j.cn112137-20200331-01022] [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 analyze clinical features, diagnosis, treatment and prognosis of pregnancy-related lymphocytic hypophysitis (LyH). Methods: The clinical data of 16 cases diagnosed as pregnancy-related LyH at Chinese PLA General Hospital between October 2010 and November 2019 were reviewed. Results: Sixteen patients were included (aged 20-40 years). All patients' symptoms occurred from the last 2 months of pregnancy to 12 months postpartum, with 6 cases in the third trimester and 10 cases during postpartum, and all the patients were diagnosed after delivery. Six patients had lymphocytic adenohypophysitis (LAH), 4 patients had lymphocytic infundibuloneurohypophysitis (LINH), 4 patients had lymphocytic panhypophysitis (LPH), and 2 had lymphocytic hypothalamitis. Eight patients presented with symptoms of intracranial space-occupying lesions, 14 patients had symptoms of anteriorpituitary hormone deficiencies, 9 patients had central diabetes insipidus (CDI), and 2 had hyperprolactinemia. Pituitary MRI showed that the pituitary presented with diffuse enlargement, pituitary stalk thickening, disappearing of high-intensity signals in posterior pituitary and space-occupying lesions in the infundibulum of hypothalamus. Nine patients were treated with immunosuppressive agent, 3 patients alleviated the space-occupying effects after surgery, and 4 patients recovered spontaneously. Fourteen patients were followed up with a period of 3-98 months. Four patients had a relapse, 2 patients had a complete remission, and 12 patients needed long-term hormone replacement therapy. Conclusions: Clinical manifestations of pregnancy-related LyH are diverse. LyH should be suspected in pregnant or postpartum women with a sellar mass to avoid missed diagnosis or misdiagnosis. Immunosuppressant therapy is effective. Overall, LyH patients have a favorable prognosis.
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Affiliation(s)
- Z W Li
- Department of Endocrinology, Medical Center of Chinese PLA General Hospital, Beijing 100853, China (Li Zewei is working at the Department of Endocrinology, Chifeng Municipal Hospital, Chifeng 024000, China)
| | - G Q Yang
- Department of Endocrinology, Hainan Hospital of Chinese PLA General Hospital, Sanya 572000, China
| | - J T Dou
- Department of Endocrinology, Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Z H Lyu
- Department of Endocrinology, Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y Pei
- Department of Endocrinology, Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - J Du
- Department of Endocrinology, Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - J M Ba
- Department of Endocrinology, Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Q H Guo
- Department of Endocrinology, Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y M Mu
- Department of Endocrinology, Medical Center of Chinese PLA General Hospital, Beijing 100853, China
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15
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Fu JQ, Yang ZQ, Liu ZL, Qu GQ, Li ZW, Zhan GM, Chen XR, Zou YL. Measurement of Scars Using Structured-Light 3D Scanning in Forensic Practice. Fa Yi Xue Za Zhi 2020; 36:311-315. [PMID: 32705842 DOI: 10.12116/j.issn.1004-5619.2020.03.004] [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: 03/02/2019] [Indexed: 11/30/2022]
Abstract
Abstract Objective To validate the accuracy and reliability of structured-light three-dimensional (SL-3D) scanning in measuring the length and area of the regular and irregular scars on body surface and discuss its value in forensic practice. Methods The lengths of 30 cases of simulated linear scars and 50 cases of linear scars after injury were measured using soft ruler, vernier caliper + thin line method, and SL-3D scanning. The areas of 35 cases of simulated patchy scars and 15 cases of patchy scars after injury were measured using length × width, film tracing with coordinate paper method, pixel method, and SL-3D scanning, and then statistically analyzed. Results The differences between the length of the simulated linear scars measured by SL-3D scanning and standard length had no statistical significance. When simulated patchy scars and patchy scars after injury were measured with high surface curvature and large irregular areas, the differences between the results of SL-3D scanning measurement and the standard area had no statistical significance. When the length of 50 cases of linear scars after injury were measured using SL-3D scanning, the correlation coefficient between the measurement results of two different investigators was 0.998, and the correlation coefficient between the two measurement results by the same investigator was 1.000. The correlation coefficient between the results of SL-3D scanning and that of vernier caliper + thin line method was 0.996. Conclusion The three-dimensional information of the scars on the body surface can be acquired using SL-3D scanning. The measurement of the length and area of the scars is not influenced by the location of scars, curvature of surface, and human factors. The measurement results are accurate, reliable and has unique advantages.
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Affiliation(s)
- J Q Fu
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.,Hubei Chongxin Judicial Forensic Center, Wuhan 430415, China
| | - Z Q Yang
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Z L Liu
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - G Q Qu
- Hubei Chongxin Judicial Forensic Center, Wuhan 430415, China
| | - Z W Li
- School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - G M Zhan
- School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - X R Chen
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y L Zou
- Yidu Mingxin Judical Expertise Institute, Yichang 443300, Hubei Province, China
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Guo H, Li ZW, Chang CF, Hu Z, Kuo CY, Perring TG, Schmidt W, Piovano A, Schmalzl K, Walker HC, Lin HJ, Chen CT, Blanco-Canosa S, Schlappa J, Schüßler-Langeheine C, Hansmann P, Khomskii DI, Tjeng LH, Komarek AC. Charge disproportionation and nano phase separation in [Formula: see text]. Sci Rep 2020; 10:18012. [PMID: 33093480 PMCID: PMC7582202 DOI: 10.1038/s41598-020-74884-2] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 09/04/2020] [Indexed: 11/29/2022] Open
Abstract
We have successfully grown centimeter-sized layered [Formula: see text] single crystals under high oxygen pressures of 120-150 bar by the floating zone technique. This enabled us to perform neutron scattering experiments where we observe close to quarter-integer magnetic peaks below [Formula: see text] that are accompanied by steep upwards dispersing spin excitations. Within the high-frequency Ni-O bond stretching phonon dispersion, a softening at the propagation vector for a checkerboard modulation can be observed. We were able to simulate the magnetic excitation spectra using a model that includes two essential ingredients, namely checkerboard charge disproportionation and nano phase separation. The results thus suggest that charge disproportionation is preferred instead of a Jahn-Teller distortion even for this layered [Formula: see text] system.
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Affiliation(s)
- H. Guo
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187 Dresden, Germany
| | - Z. W. Li
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187 Dresden, Germany
- Institute of Applied Magnetics, Key Lab for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, 730000 People’s Republic of China
| | - C. F. Chang
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187 Dresden, Germany
| | - Z. Hu
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187 Dresden, Germany
| | - C.-Y. Kuo
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187 Dresden, Germany
- National Synchrotron Radiation Research Center (NSRRC), 101 Hsin-Ann Road, Hsinchu, 30076 Taiwan
| | - T. G. Perring
- ISIS Facility, STFC Rutherford Appleton Laboratory, Harwell Oxford, Didcot, OX11 0QX UK
| | - W. Schmidt
- Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science at ILL, 71 avenue des Martyrs, 38000 Grenoble, France
| | - A. Piovano
- Institut Laue-Langevin, 71 avenue des Martyrs, 38000 Grenoble, France
| | - K. Schmalzl
- Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science at ILL, 71 avenue des Martyrs, 38000 Grenoble, France
| | - H. C. Walker
- ISIS Facility, STFC Rutherford Appleton Laboratory, Harwell Oxford, Didcot, OX11 0QX UK
| | - H. J. Lin
- National Synchrotron Radiation Research Center (NSRRC), 101 Hsin-Ann Road, Hsinchu, 30076 Taiwan
| | - C. T. Chen
- National Synchrotron Radiation Research Center (NSRRC), 101 Hsin-Ann Road, Hsinchu, 30076 Taiwan
| | - S. Blanco-Canosa
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao, Basque Country Spain
- Donostia International Physics Center, DIPC, 20018 Donostia-San Sebastian, Basque Country, Spain
| | - J. Schlappa
- European X-ray Free Electron Laser Facility GmbH, Holzkoppel 4, 22869 Schenefeld, Germany
| | - C. Schüßler-Langeheine
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Str. 15, 12489 Berlin, Germany
| | - P. Hansmann
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187 Dresden, Germany
| | - D. I. Khomskii
- Physics Institute II, University of Cologne, Zülpicher Str. 77, 50937 Cologne, Germany
| | - L. H. Tjeng
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187 Dresden, Germany
| | - A. C. Komarek
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, 01187 Dresden, Germany
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Cao Y, Li ZW, Yang X, Lai YM, Zhuang Q, Jia L, Lin DM. [Genetic changes and biological potential of proliferative nodule in congenital pigmented nevus]. Zhonghua Bing Li Xue Za Zhi 2020; 49:458-463. [PMID: 32392930 DOI: 10.3760/cma.j.cn112151-20190905-00485] [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 study the genetic changes and biological potential of proliferative nodule in congenital melanocytic nevus. Methods: Whole-exome sequencing was carried out using the technique of next-generation sequencing (NGS) in order to detect the genomic alterations of two cases of proliferative nodules (PN) in congenital melanocytic nevi (CMN). Twelve cases of CMN and ten cases of malignant melanoma were used as benign and malignant controls, respectively. Mutated genes that possessed statistically significant difference between benign and malignant controls were listed, according to what benign and malignant statuses were classified and clustered. The heatmaps of clustering analyses were depicted using heatmap package. Fluorescence in situ hybridization (FISH) was also used to validate the above results. Results: Eighty-six common somatic gene mutations were detected in two samples of PN. Compared with CMN, PN had 52 more mutated genes. Furthermore, 22 of these 52 mutated genes were also detected in malignant melanoma samples. Two cases of PN fell between benign CMN and malignant melanoma in germline mutation clustering. Both cases of PN were positive in the FISH tests. Conclusions: The genetic changes of PN partially overlap with those of CMN and malignant melanoma. Therefore, although most of the PN manifest as a benign lesion clinically, it may have certain malignant potential at the genetic level, and warrant long-term monitoring and follow-up.
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Affiliation(s)
- Y Cao
- Department of Pathology, Plastic Surgery Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100144, China
| | - Z W Li
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - X Yang
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Y M Lai
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Q Zhuang
- Department of Pathology, Plastic Surgery Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100144, China
| | - L Jia
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - D M Lin
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
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Wang L, Zhao YM, Sun TT, Xu YL, Li SJ, Zhang XY, Cai Y, Li YH, Li ZW, Chen PJ, Peng YF, Wang WH, Wu AW. [Total neoadjuvant therapy followed by watch and wait approach or organ preservation for MRI stratified low-risk rectal cancer: early result from a prospective, single arm trial]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:258-265. [PMID: 32192305 DOI: 10.3760/cma.j.cn.441530-20200222-00070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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 explore the safety and efficacy of watch and wait strategy and organ preservation surgery after total neoadjuvant treatment for MRI stratified low-risk rectal cancer. Methods: A prospective single arm phase Ⅱ trial developed at Department of Gastrointestinal Cancer, Peking University Cancer Hospital & Institute was preliminarily analyzed. Subjects were enrolled from August 2016 to January 2019. Low-risk rectal cancer with following MRI features were recruited: mid-low tumor, mrT2-3b, MRF (-), EMVI (-), CRM (-), differentiation grade 1-3. Patients received intensity-modulated radiotherapy (IMRT) 50.6 Gy/22f with concurrent capecitabine and 4 cycles of consolidation CAPEOX. Patients with cCR/near-cCR confirmed by physical examination, rectal MRI, endoscopy, and serum CEA were recommended for watch & wait approach or local excision (LE). The main study outcomes were 2-year organ preservation rate (OPR) and sphincter preservation rate (SPR). Results: Thirty-eight patients were eligible for analysis, including 24 males and 14 females with median age of 56 years; 9 cases of mrT2 (23.7%), 14 cases of mrT3a (36.8%) and 15 cases of mrT3b (39.5%); 5 cases of well differentiated adenocarcinoma (13.2%), 32 cases of moderately differentiated adenocarcinoma (84.2%) and 1 case of mucinous adenocarcinoma (2.6%). Carcinoemobryonic antigen (CEA) was elevated before treatment in 1 case. One case (2.6%) of grade 3 radiation dermatitis occurred during IMRT; 18 cases (47.4%) occurred grade 3 to 4 adverse events during consolidation chemotherapy. After total neoadjuvant treatment, the cCR and near-cCR rates were 42.1% (16/38) and 23.7% (9/38), respectively, while non-cCR rate was 34.2% (13/38). Twenty patients (20/38, 52.6%) of cCR or near-cCR underwent watch & wait approach, with a local regrowth rate of 20% (4/20). Four patients received LE, including one salvage LE. Thirteen patients (4 were ypCR) received radical resection, including 10 cases of initial low anterior resections (LAR), 1 cases of initial abdominal perineal resection (APR) and 2 cases of salvage LAR, four patients refused operation. The median follow-up time was 23.5 (8.5-38.3) months. At the last interview of follow-up, the OPR and SPR were 52.6% (20/38) and 84.2% (32/38), respectively. Only one patient developed lung metastasis and no local recurrence occurred after radical resection or LE. Conclusion: Total neoadjuvant treatment for low-risk rectal cancer achieves high cCR/near-cCR rate, with increased probability of receiving watch and wait approach and organ preservation in this subgroup.
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Affiliation(s)
- L Wang
- Department of Gastrointestinal Cancer, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - Y M Zhao
- Department of Gastrointestinal Cancer, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - T T Sun
- Department of Gastrointestinal Cancer, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - Y L Xu
- Department of Gastrointestinal Cancer, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - S J Li
- Endoscopy Center, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - X Y Zhang
- Department of Radiation Oncology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - Y Cai
- Department of Radiology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - Y H Li
- Department of Radiology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - Z W Li
- Department of Pathology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - P J Chen
- Department of Gastrointestinal Cancer, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - Y F Peng
- Department of Gastrointestinal Cancer, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - W H Wang
- Department of Radiology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - A W Wu
- Department of Gastrointestinal Cancer, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
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Li ZW. [Guiding significance of pathological diagnosis in watch and wait strategy for locally advanced rectal cancer patients after neoadjuvant therapy]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:248-251. [PMID: 32192303 DOI: 10.3760/cma.j.cn.441530-20200224-00079] [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
Some studies have demonstrated promising results of watch and wait (W&W) approaches in carefully selected patients with locally advanced rectal cancer who get a clinical complete response (cCR) after neoadjuvant chemoradiotherapy (nCRT). This approach of organ- preservation helps patients avoid surgery and its related morbidity and mortality. nCRT will lead to the regression of the tumor cells and the uneven distribution of the residual tumor cells. The reliability of biopsy is still unsatisfactory in W&W strategy due to the high ratio of false negative cases. Therefore, the patients with negative histopathological assessment should also receive a strict follow-up. In the future, immune microenvironment and molecular markers, patient derived organoid, circulating tumor cells (CTCs) and circulating cell-free nucleic acids (cfDNA) may be helpful for screening and monitoring patients undergoing W&W.
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Affiliation(s)
- Z W Li
- Department of Pathology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
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20
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Xiao JR, Wang K, Liu Y, Li ZW, Zhou YJ, Wang HZ, Lu JY, Cheng SS, Wei S. [Exploring of a prognostic long non-coding RNA signature of hepatocellular carcinoma by using public database]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 40:805-809. [PMID: 31357803 DOI: 10.3760/cma.j.issn.0254-6450.2019.07.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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 explore an effective long non-coding RNA (lncRNA) signature in predicting the prognosis of hepatocellular carcinoma through the analysis on RNA sequencing data of hepatocellular carcinoma patients and peritumoral tissues in the Cancer Genome Atlas (TCGA) database. Methods: The clinical characteristics and RNA sequencing data of 377 hepatocellular carcinoma patients were obtained from TCGA database by the end of February 2018. Then, differentially expressed lncRNAs between 50 pairs of tumor and peritumoral tissues were explored using student's t-test. Next, a lncRNA signature was established through LASSO Cox regression analysis. All the patients were divided into four groups (<P(25), P(25)-, P(50)-, ≥P(75)) based on the cut-off quartiles signature. Finally, compared with the control group (<P(25)), the hazard ratios (HRs) of three groups (P(25)-, P(50)-, ≥P(75)) were calculated by using Cox regression. The survival outcomes of patients in the four groups were compared to evaluate the capacity of the lncRNA signature model. Results: A total of 951 differentially expressed lncRNAs were identified between tumor and peritumoral tissues. A three-lncRNA signature, including LNCSRLR, MKLN1-AS and ZFPM2-AS1, was established to predict the prognosis of hepatocellular carcinoma patients. The outcome suggested that the death risk of the ≥P(75) group was 1.57 times larger than that of the <P(25) group (95%CI: 1.06-2.31, P<0.05). Conclusion: The three-lncRNA signature, which established by LNCSRLR, MKLN1-AS and ZFPM2-AS1, was significantly associated with the prognosis of hepatocellular carcinoma patients based on TCGA database data.
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Affiliation(s)
- J R Xiao
- Department of Epidemiology and Biostatistics, Key Laboratory of Ministry of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Yang Y, Liu YQ, Wang XH, Ji K, Li ZW, Bai J, Yang AR, Hu Y, Han HB, Li ZY, Bu ZD, Wu XJ, Zhang LH, Ji JF. [Clinicopathological and molecular characteristics of Epstein-Barr virus associated gastric cancer: a single center large sample case investigation]. Beijing Da Xue Xue Bao Yi Xue Ban 2019; 51:451-458. [PMID: 31209416 DOI: 10.19723/j.issn.1671-167x.2019.03.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Epstein-Barr virus associated gastric cancer (EBVaGC) is different from the traditional gastric cancer (Epstein-Barr virus non-associated gastric cancer, EBVnGC), and has unique clinicopathological features. This study investigated the largest single center cancer series so as to establish the clinicopathological and molecular characteristics of EBVaGC in China. METHODS A retrospective analysis was conducted on EBVaGC and EBVnGC patients diagnosed at Peking University Cancer Hospital from 2003 to 2018 by comparing their clinicopathological features and prognosis. The gastric cancer (GC) dataset of public database was analyzed to obtain differentially expressed genes. The expression of important genes and their association with prognosis of GC were verified in GC tissues from our hospital. RESULTS In this study, 3 241 GC patients were included, and a total of 163 EBVaGC (5.0%) patients were identified. Compared with EBVnGC, EBVaGC was higher in male and younger patients, and positively associated with remnant GC, poorly differentiated adenocarcinoma, and mixed type GC. EBVaGC was inversely related to lymph node metastasis. The 5-year survival rate of EBVnGC and EBVaGC was 59.6% and 63.2% respectively (P<0.05). In order to explore molecular features of EBVaGC, the Cancer Genome Atlas (TCGA) dataset was analyzed (n=240), and 7 404 significant differentially expressed genes were obtained, involving cell proliferation, apoptosis, invasion and metastasis. The down-regulated invasion/metastasis gene SALL4 and the up-regulated immune checkpoint gene PD-L1 were important molecular features of EBVaGC. Validation of these two genes in large GC series showed that the majority of the EBVaGC was SALL4 negative (1/92, 1.1%, lower than EBVnGC, 303/1 727, 17.5%), and that PD-L1 was mostly positive in EBVaGC (81/110, 73.6%, higher than EBVnGC, 649/2 350, 27.6%). GC patients with SALL4 negative and PD-L1 positive were often associated with better prognosis. CONCLUSION EBVaGC is a unique subtype of GC with less metastasis and a good prognosis. It also has a distinct molecular background. The down-regulation of invasion/metastasis gene SALL4 and up-regulation of immune checkpoint gene PD-L1 are important molecular features.
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Affiliation(s)
- Y Yang
- Department of Gastrointestinal Cancer Center, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education; Laboratory of Genetics, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Y Q Liu
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education; Laboratory of Genetics, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - X H Wang
- Department of Biobank, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education; Laboratory of Genetics, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - K Ji
- Department of Gastrointestinal Cancer Center, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education; Laboratory of Genetics, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Z W Li
- Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education; Laboratory of Genetics, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - J Bai
- Berry Oncology Corporation, Beijing 102206, China
| | - A R Yang
- Berry Oncology Corporation, Beijing 102206, China
| | - Y Hu
- Department of Biobank, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education; Laboratory of Genetics, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - H B Han
- Department of Biobank, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education; Laboratory of Genetics, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Z Y Li
- Department of Gastrointestinal Cancer Center, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education; Laboratory of Genetics, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Z D Bu
- Department of Gastrointestinal Cancer Center, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education; Laboratory of Genetics, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - X J Wu
- Department of Gastrointestinal Cancer Center, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education; Laboratory of Genetics, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - L H Zhang
- Department of Gastrointestinal Cancer Center, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education; Laboratory of Genetics, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - J F Ji
- Department of Gastrointestinal Cancer Center, Key Laboratory of Carcinogenesis and Translational Research, Ministry of Education; Laboratory of Genetics, Peking University Cancer Hospital & Institute, Beijing 100142, China
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Li SJ, Wang L, Zhang XY, Li YH, Li ZW, Wu Q, Sun YS, Wu AW. [Application value of colonoscopic assessment in "watch and wait" strategy for mid-lower rectal cancer after neoadjuvant chemoradiotherapy]. Zhonghua Wei Chang Wai Ke Za Zhi 2019; 22:648-655. [PMID: 31302963 DOI: 10.3760/cma.j.issn.1671-0274.2019.07.009] [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 investigate the value of colonoscopic assessment in "watch and wait" strategy for mid-lower rectal cancer after neoadjuvant chemoradiotherapy (nCRT). Methods: A single-center retrospective case series study was performed. Database of mid-lower rectal cancer patients at Department of Gastrointestinal Oncology, Peking University Cancer Hospital & Institute from March 2011 to June 2017 was retrieved. Inclusion criteria: (1) nCRT was completed (50.6 Gy/22 f, plus oral capecitabine); (2) radical surgery was performed within 12 weeks after nCRT treatment; (3) clinical response to nCRT was determined as clinical complete response (cCR) or near-cCR. Patients who did not undergo colonoscopy and MRI in our center during initial assessment and follow-up, or whose colonoscopy data were unable to re-evaluated, were excluded. Initial evaluation of nCRT response was carried out between 6 and 16 weeks after nCRT. The results of endoscopy (eCR, near-eCR and non-eCR) and MRI (mCR, near-mCR and non-mCR) were compared to local lesion relapse during follow-up. The consistency of the results of colonoscopy and MRI was evaluated by Kappa test (Kappa value of 0.21 to 0.40 indicates general consistency, 0.41 to 0.60 moderate consistency, and 0.61 to 0.80 high consistency). The non-regrowth disease-free survival (NR-DFS) curves of the eCR group and the near-eCR group were plotted by Kaplan-Meier method and compared by log-rank test. Clinical significance of colonoscopy examination in the following "watch and wait" strategy during follow-up period was analyzed. Results: A total of 32 patients were enrolled in the study, including 21 (65.6%) males and 11 (34.4%) females with a median age of 57 years old. The differentiated type of rectal cancer included 1 (3.1%) case of well-differentiated, 26 (81.2%) of moderately differentiated and 5 (15.6%) of poorly differentiated. Clinical stage of the patients included 9 (28.1%) cases of T2-3N0 and 23 (71.9%) of T2-3N+. Median follow-up period was 48 (18 to 80) months. The local regrowth rate was 34.4% (11/32) and median interval of local regrowth was 10.0 (4 to 37) months. Initial colonoscopy evaluation was carried out at a median time of 9 (5 to 19) weeks after nCRT was completed. According to endoscopic findings, patients were divided into 3 groups, including 15 cases in eCR group, 15 cases in near-eCR group and 2 cases in non-eCR group. According to the appearance of MRI, patients were divided into 3 groups, including 8 cases in mCR group, 21 cases in near-mCR group and 3 cases in non-mCR group. The regrowth rate of eCR group was lower than that of mCR group (1/15 vs. 1/8) without significant difference (P=1.000). The regrowth rate of near-eCR group was higher than that of near-mCR group [9/15 vs. 42.9% (9/21)] without significant difference as well (P=0.500). The consistency between colonoscopy and MRI in response evaluation of cCR or near-cCR after nCRT was unsatisfactory (Kappa=0.341, P=0.011). After initial evaluation, 31 patients underwent watch and wait strategy, and 1 underwent local resection. The 1- and 3-year NR-DFS in the eCR group was both 100%, which was higher than that in the near-eCR group (53.3% and 38.9%, respectively), and the difference was statistically significant (P=0.001). During watch and wait period, 11 cases developed local regrowth by colonoscopy examination and the biopsy result included 4 case of high-grade intraepithelial neoplasia (HIN), 6 cases of adenocarcinoma and 1 case of chronic mucosal inflammation. Meanwhile lateral developmental tumor of ascending colon in 1 case and of sigmoid in a case was found by colonoscopy and confirmed as HIN by postoperative pathology. Besides, 4 cases developed colonic multiple adenoma and all underwent endoscopic resection. Conclusion: Colonoscopy examination plays an important role in both initial assessment and regrowth monitoring during watch and wait strategy after nCRT treatment.
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Affiliation(s)
- S J Li
- Department of Endoscopy Center, Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - L Wang
- Department of Gastrointestinal Oncology, Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - X Y Zhang
- Department of Medical Imaging, Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Y H Li
- Department of Radiotherapy, Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Z W Li
- Department of Pathology, Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Q Wu
- Department of Endoscopy Center, Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Y S Sun
- Department of Medical Imaging, Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - A W Wu
- Department of Gastrointestinal Oncology, Department of Pathology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
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Huang YQ, Zhou SG, Wang J, Deng LX, Li ZW, Xu YH. [Feasibility and safety of MRgFUS ablation for uterine fibroids and adenomyosis: a preliminary study]. Zhonghua Yi Xue Za Zhi 2019; 99:1152-1155. [PMID: 31006218 DOI: 10.3760/cma.j.issn.0376-2491.2019.15.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the feasibility and safety of magnetic resonance guided focused ultrasound surgery (MRgFUS) ablation treatment for uterine fibroids and adenomyosis. Methods: From February 2017 to July 2018, a total of 61 women in Foshan Hospital of Traditional Chinese Medicine with uterine fibroids or adenomyosis (36 cases of fibroids and 25 cases of adenomyosis) were included for treatment of MRgFUS, mean age was 27-48 (39±5) years. The treatment status, treatment effect and complications were recorded, and the differences between myoma and adenomyosis were compared. Results: Thirty-two (88.9%) patients of fibroid group and twenty-one (84.0%) patients of adenomyosis group were completed MRgFUS treatment respectively (P>0.05). The spot energy of adenomyosis group was 1 039-5 698(2 852±991) J, which was higher than 600-6 466(2 485±1 137) J of fibroid group (P<0.01). There was no significant statistical difference in mean temperature of spot and ablation time between the two groups (P>0.05).The non-perfusion volume ratio (NPVR) of the fibroid and adenomyosis group was 54%-99%(84%±15%) and 60%-98%(82%±12%) and there was no significant statistical difference (P>0.05), but the ablation efficiencies of adenomyosis group was less than fibroid group (0.8-4.3(2.1±0.9) cm(3)/min vs 1.3-7.8(3.6±1.5)cm(3)/min, P<0.01).The incidence of complications of adenomyosis group was 47.6%(10/21), it was higher than fibroid group 18.8%(6/32) (P<0.05). Conclusions: MRgFUS is a non-invasive, safe and effective treatment for both uterine fibroids and adenomyosis. Compared with uterine fibroids, MRgFUS treatment of adenomyosis has some disadvantages such as higher energy, lower ablation efficiency and more adverse reactions, and further optimization is needed.
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Affiliation(s)
- Y Q Huang
- Department of MRI, Foshan Hospital of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Foshan 528000, China
| | - S G Zhou
- Department of MRI, Foshan Hospital of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Foshan 528000, China
| | - J Wang
- Department of MRI, Foshan Hospital of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Foshan 528000, China
| | - L X Deng
- Department of MRI, Foshan Hospital of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Foshan 528000, China
| | - Z W Li
- Department of Anaesthesiology, Foshan Hospital of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Foshan 528000, China
| | - Y H Xu
- Department of Gynecology, Foshan Hospital of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Foshan 528000, China
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24
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Hou FQ, Yin YL, Zeng LY, Shang J, Gong GZ, Pan C, Zhang MX, Yin CB, Xie Q, Peng YZ, Chen SJ, Mao Q, Chen YP, Mao QG, Zhang DZ, Han T, Wang MR, Zhao W, Liu JJ, Han Y, Zhao LF, Luo GH, Zhang JM, Peng J, Tan DM, Li ZW, Tang H, Wang H, Zhang YX, Li J, Zhang LL, Chen L, Jia JD, Chen CW, Zhen Z, Li BS, Niu JQ, Meng QH, Yuan H, Sun YT, Li SC, Sheng JF, Cheng J, Sun L, Wang GQ. [Clinical effect and safety of pegylated interferon-α-2b injection (Y shape, 40 kD) in treatment of HBeAg-positive chronic hepatitis B patients]. Zhonghua Gan Zang Bing Za Zhi 2019; 25:589-596. [PMID: 29056008 DOI: 10.3760/cma.j.issn.1007-3418.2017.08.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To investigate the clinical effect and safety of long-acting pegylated interferon-α-2b (Peg-IFN-α-2b) (Y shape, 40 kD) injection (180 μg/week) in the treatment of HBeAg-positive chronic hepatitis B (CHB) patients, with standard-dose Peg-IFN-α-2a as positive control. Methods: This study was a multicenter, randomized, open-label, and positive-controlled phase III clinical trial. Eligible HBeAg-positive CHB patients were screened out and randomized to Peg-IFN-α-2b (Y shape, 40 kD) trial group and Peg-IFN-α-2a control group at a ratio of 2:1. The course of treatment was 48 weeks and the patients were followed up for 24 weeks after drug withdrawal. Plasma samples were collected at screening, baseline, and 12, 24, 36, 48, 60, and 72 weeks for centralized detection. COBAS® Ampliprep/COBAS® TaqMan® HBV Test was used to measure HBV DNA level by quantitative real-time PCR. Electrochemiluminescence immunoassay with Elecsys kit was used to measure HBV markers (HBsAg, anti-HBs, HBeAg, anti-HBe). Adverse events were recorded in detail. The primary outcome measure was HBeAg seroconversion rate after the 24-week follow-up, and non-inferiority was also tested. The difference in HBeAg seroconversion rate after treatment between the trial group and the control group and two-sided confidence interval (CI) were calculated, and non-inferiority was demonstrated if the lower limit of 95% CI was > -10%. The t-test, chi-square test, or rank sum test was used according to the types and features of data. Results: A total of 855 HBeAg-positive CHB patients were enrolled and 820 of them received treatment (538 in the trial group and 282 in the control group). The data of the full analysis set showed that HBeAg seroconversion rate at week 72 was 27.32% in the trial group and 22.70% in the control group with a rate difference of 4.63% (95% CI -1.54% to 10.80%, P = 0.1493). The data of the per-protocol set showed that HBeAg seroconversion rate at week 72 was 30.75% in the trial group and 27.14% in the control group with a rate difference of 3.61% (95% CI -3.87% to 11.09%, P = 0.3436). 95% CI met the non-inferiority criteria, and the trial group was non-inferior to the control group. The two groups had similar incidence rates of adverse events, serious adverse events, and common adverse events. Conclusion: In Peg-IFN-α regimen for HBeAg-positive CHB patients, the new drug Peg-IFN-α-2b (Y shape, 40 kD) has comparable effect and safety to the control drug Peg-IFN-α-2a.
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Affiliation(s)
- F Q Hou
- Department of Infectious Diseases, Center for Liver Diseases, Peking University First Hospital, Beijing 100034, China
| | - Y L Yin
- Xiamen Amoytop Biotech Co., Ltd, Xiamen 361028, China
| | - L Y Zeng
- Xiamen Amoytop Biotech Co., Ltd, Xiamen 361028, China
| | - J Shang
- Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - G Z Gong
- The Second Xiangya Hospital of Central South University, Changsha 410011, China
| | - C Pan
- Fuzhou Infectious Disease Hospital, Fuzhou 350025, China
| | - M X Zhang
- The Sixth People's Hospital of Shenyang, Shenyang 110006, China
| | - C B Yin
- Guangzhou Eighth People's Hospital, Guangzhou 510060, China
| | - Q Xie
- Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Y Z Peng
- Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - S J Chen
- Jinan Infectious Disease Hospital, Jinan 250021, China
| | - Q Mao
- Southeast Hospital, Third Military Medical University, Chongqing 400038, China
| | - Y P Chen
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Q G Mao
- Xiamen Hospital of T.C.M, Xiamen 361001, China
| | - D Z Zhang
- The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - T Han
- Tianjin Third Central Hospital, Tianjin 300170, China
| | - M R Wang
- 81th Hospital of People's Liberation Army, Nanjing 210002, China
| | - W Zhao
- The Second Affiliated Hospital of the Southeast University, Nanjing 210003, China
| | - J J Liu
- The First Affiliated Hospital of Xiamen University, Xiamen 361003, China
| | - Y Han
- Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - L F Zhao
- The First Affiliated Hospital of Shanxi University, Taiyuan 030001, China
| | - G H Luo
- The First Affiliated Hospital of Guangxi Medical Universtiy, Nanning 530021, China
| | - J M Zhang
- Huashan Hospital, Shanghai 200040, China
| | - J Peng
- Nangfang Hospital, Southern Medical University, Guangzhou 510510, China
| | - D M Tan
- Xiangya Hospital Central South University, Changsha 410008, China
| | - Z W Li
- Shengjing Hospital of China Medical University, Shenyang 110022, China
| | - H Tang
- West China Hospital, Sichuan University, Chengdu 610041, China
| | - H Wang
- Peking University People's Hospital, Beijing 100044, China
| | - Y X Zhang
- The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China
| | - J Li
- Jiangsu Provincial People's Hospital, Nanjing 210029, China
| | - L L Zhang
- The First Affiliated Hospital of Nanchang University, Nanchang 360102, China
| | - L Chen
- Shanghai Public Health Clinical Center, Shanghai 201508, China
| | - J D Jia
- Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - C W Chen
- 85th Hospital of People's Liberation Army, Shanghai 200052, China
| | - Z Zhen
- The Third Affiliated Hospital of Hebei Medical University, Shijiazhuang 050051, China
| | - B S Li
- 302 Military Hospital of China, Beijing 100039, China
| | - J Q Niu
- The First Bethune Hospital of Jilin University, Chanchun 130062, China
| | - Q H Meng
- Beijing Youan Hospital, Captial Medical University, Beijing 100069, China
| | - H Yuan
- The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - Y T Sun
- Tangdu Hospital, Fourth Military Medical University, Xi'an 710038, China
| | - S C Li
- The 2nd Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - J F Sheng
- The First Affiliated Hospital of Zhejiang University, Hangzhou 310003, China
| | - J Cheng
- Beijing Ditan Hospital Capital Medical University, Beijing 100015, China
| | - L Sun
- Xiamen Amoytop Biotech Co., Ltd, Xiamen 361028, China
| | - G Q Wang
- Department of Infectious Diseases, Center for Liver Diseases, Peking University First Hospital, Beijing 100034, China
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Li SY, Zhai WQ, Li ZW, Li A, Jiang YM, Li W. Synthesis, Crystal Structures and Insulin-Enhancing Activity of Vanadium(V) Complexes with Hydrazone Ligands. RUSS J COORD CHEM+ 2018. [DOI: 10.1134/s1070328418110052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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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Qi RZ, Zhao X, Wang SZ, Zhang K, Chang ZY, Hu XL, Wu ML, Zhang PR, Yu LX, Xiao CH, Shi XJ, Li ZW. [Postoperative complications and survival analysis of 1 118 cases of open splenectomy and azygoportal disconnection in the treatment of portal hypertension]. Zhonghua Wai Ke Za Zhi 2018; 56:436-441. [PMID: 29886667 DOI: 10.3760/cma.j.issn.0529-5815.2018.06.010] [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 analyze the recent postoperative and long-term postoperative complications of open-splenectomy and disconnection in patients with portal hypertension. Methods: There were 1 118 cases with portal hypertension who underwent open splenectomy and azygoportal disconnection from April 2010 to September 2015 at Department of Surgery, People's Liberation Army 302 Hospital. Retrospective case investigation and telephone follow-up were conducted in October 2016. All patients had history of upper gastrointestinal bleeding before operation. Short-term complications after surgery were recorded including secondary laparotomy of postoperative abdominal hemostasis, severe infection, intake disorders, liver insufficiency, postoperative portal vein thrombosis and perioperative mortality. Long-term data including postoperative upper gastrointestinal rebleeding, postoperative survival rate and incidence of postoperative malignancy were recorded, too. GraphPad Prism 5 software for data survival analysis and charting. Results: Postoperative short-term complications in 1 118 patients included secondary laparotomy of postoperative abdominal hemostasis(1.8%, 21/1 118), severe infection(2.9%, 32/1 118), intake disorders(1.0%, 11/1 118), liver dysfunction (1.6%, 18/1 118), postoperative portal vein thrombosis(47.1%, 526/1 118)and perioperative mortality(0.5%, 5/1 118). After phone call following-up, 942 patients' long-term data were completed including 1, 3, 5 years postoperative upper gastrointestinal rebleeding rate(4.4%, 12.1%, 17.2%), 1, 3, 5-year postoperative survival rate(97.0%, 93.5%, 90.3%); the incidence of postoperative malignant tumors in 1, 3 and 5 years were 1.7%, 4.4% and 6.2%. Conclusions: Reasonable choosing of surgical indications and timing, proper performing the surgery process, effective conducting perioperative management of portal hypertension are directly related to the patient's short-term prognosis after portal hypertension. Surgical intervention can reduce the rates of patients with upper gastrointestinal rebleeding, improve survival, and do not increase the incidence of malignant tumors.
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Affiliation(s)
- R Z Qi
- Department of General Surgery, People's Liberation Army 302 Hospital, Beijing 100039, China
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Li ZW, Li XX, Li JS, Fang HY, Yang GJ. [Exploration of the surgical approach of early glottic cancer with anterior commissure involvement]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:950-952. [PMID: 29921082 DOI: 10.13201/j.issn.1001-1781.2018.12.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Indexed: 06/08/2023]
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Yuan L, Li ZW. [Research advances in the role of the Hippo signaling pathway in pathogenesis of liver cancer]. Zhonghua Gan Zang Bing Za Zhi 2017; 25:797-800. [PMID: 29108216 DOI: 10.3760/cma.j.issn.1007-3418.2017.10.019] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The Hippo signaling pathway consists of four core components in mammals, i.e., Mst1/2, WW45, Mob1, and LATS1/2, which can inhibit the transcriptional coactivator YAP from entering the nucleus, maintain the balance between cell proliferation and apoptosis, control organ size, and maintain homeostasis. If the core components of the Hippo signaling pathway are inactivated due to gene mutation or epigenetic alterations, YAP is overexpressed and activated in the nucleus, which then induces excessive cell proliferation and inhibits cell apoptosis. It has been confirmed that this process is closely associated with the formation of various tumors including liver cancer. Research on the Hippo signaling pathway may provide new directions for exploring the pathogenesis of liver tumor and developing effective therapies.
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Affiliation(s)
- L Yuan
- Department of Infection, Shengjing Hospital of China Medical University, Shenyang 110004, China
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Li ZW, Zhou SH. [Laryngopharyngeal reflux disease and laryngeal precancerous lesions]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 52:637-639. [PMID: 28822426 DOI: 10.3760/cma.j.issn.1673-0860.2017.08.021] [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
The laryngopharyngeal reflux disease (LPRD) is a general term for a series of symptoms and signs caused by reflux of the stomach contents to the upper part of the esophageal sphincter. In recent years, the laryngopharyngeal reflux (LPR) is getting more and more attention as laryngeal precancerous lesions and risk factors of laryngeal cancer. Laryngeal precancerous lesions plays a important role in the development of laryngeal cancer process. This article will review the role and mechanisms of LPR in the laryngeal precancerous lesions, and the status of anti-reflux in the treatment of laryngeal precancerous lesions.
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Affiliation(s)
- Z W Li
- First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310003, China
| | - S H Zhou
- First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310003, China
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Yang XG, Wu G, Li ZW, Wu H, Sun YY, Wen HH, Xu GH. [Efficacy for artery chemoembolization combined with radiofrequency ablation in the treatment of advanced non-small cell lung cancer]. Zhonghua Yi Xue Za Zhi 2017; 96:539-43. [PMID: 26902194 DOI: 10.3760/cma.j.issn.0376-2491.2016.07.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate efficacy and safety of artery chemoembolization combined with radiofrequency ablation for advanced non-small cell lung cancer. METHODS A total of 138 cases of Sichuan Cancer Hospital of patients with advanced non-small cell lung cancer were retrospectively analyzed from January 2011 to November 2014.All cases were divided into three groups, 61 cases were treated by artery chemoembolization (ACB group), 43 cases were treated by artery chemoembolization combined with radiofrequency ablation (Joint group), 34 cases were treated by radiofrequency ablation (RFA group). Recent efficiency, overall survival time, adverse reactions and complications of three groups were analyzed. The risk factors related to survival time of 138 patients were analyzed. RESULTS The recent efficiency of ACB group, Joint group and RFA group were 73.8%(45/61), 93.0%(40/43), 85.3%(29/34), respectively, and the difference was statistically significant (χ(2)=18.499, P=0.005). 1, 2, 3-year survival rates of Joint group were 90.7%(39/43), 58.1%(25/43), 20.9%(9/43), respectively that were better than ACB group(57.4%(35/61), 24.6%(15/61), 11.5%(7/61)) and RFA group(58.8%(20/34), 32.4%(11/34), 11.8%(4/34)), (χ(2) value were respectively 8.242 and 4.934, P values were 0.004 and 0.026). Chemotherapy side effects and complications of ablation were of no significant difference (P>0.05). Chemotherapy side effects and complications of ablation were of no significant difference (P>0.05). The number of tumors, tumor size, TNM staging, eastern cooperative oncology group (ECOG) score were independent risk factors which impact on survival time for non-small cell lung cancer. The artery chemoembolization combined with radiofrequency ablation treatment can improve survival time of patients with advanced non-small cell lung cancer. CONCLUSION Artery chemoembolization combined with radiofrequency ablation is a safe, effective, minimally-invasive treatment for advanced non-small cell lung cancer.
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Affiliation(s)
- X G Yang
- Department of Interventional Radiology, Sichuan Cancer Hospital, Chengdu 610041, China
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Gong CY, Li ZW, Zhou DX, Yan H, Bao J, Ye RJ, Cao ZL, Gao ZC, Mu XL. [Risk factors of lung cancer complicated with symptomatic venous thromboembolism]. Zhonghua Jie He He Hu Xi Za Zhi 2017; 39:454-8. [PMID: 27289575 DOI: 10.3760/cma.j.issn.1001-0939.2016.06.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To seek risk factors of VTE in patients with lung cancer through analysis of clinical features of patients with lung cancer complicated with venous thromboembolism (VTE). METHODS Retrospective investigation was performed on patients diagnosed with lung cancer and with complete clinical data who were hospitalized in Peking University People's Hospital from January 1, 2010 to December 31, 2014. According to the presence of symptomatic VTE, patients were distributed into two groups, VTE group and control group. Patients' clinical data and laboratory parameters were collected. Single factor analysis was applied to compare the differences between the two groups. t test or nonparametric test was applied for intragroup comparison of measurement data, and chi-square test was applied for the comparison of counting information. Logistic regression analysis was applied to explore risk factors of venous thromboembolism. For VTE patients with this diagnosis when they were hospitalized, D-dimer and PT were obtained after the occurrence of VTE, so D-dimer and PT were eliminated in the multiple factors analysis. SPSS 13.0 statistical software was applied for statistical management and analysis. RESULTS 548 patients with lung cancer were include in the investigation, with male 357, female 191, average age of (63.8±10.9) years old, 46 patients in VTE group and 502 patinets in control group. According to the results of single factor analysis in gender, age, tumor pathologic type, tumor stage, WBC, Hb, PLT, CEA, ALT, FIB, D-dimer, PT, APTT, PT-INR, the tumor stage (χ(2)=14.177), CEA (t=2.129) and Hb (t=-2.424) were risk factors for lung cancer patients complicated with venous thromboembolism. Logistic regression analysis showed that tumor stage was the independent risk factor of lung cancer complicated with venous thromboembolism (OR 2.058, 95%CI 1.307-3.238, P=0.002) , and CEA (r=0.395, P<0.001) and Hb (r=-0.144, P=0.001) were associated with lung cancer stage. The area under the curve formed by D-dimer predicting VTE was 0.825 (95%CI 0.751-0.900, P<0.001). CONCLUSION Tumor stage is the only risk factor for lung cancer patients complicated with venous thromboembolism in the study. However, because this study is a retrospective study, other potential high risk factors causing VTE cannot be excluded.
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Affiliation(s)
- C Y Gong
- Pulmonary Department and Critical Care Unit, Peking University People's Hospital, Beijing 100044, China, #Department of Epidemiology and Biostatistics, Institute of Reproductive & Child Health, Peking University, Beijing 100191, China
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Luo LX, Li JJ, Ye H, Li ZW, Gong HX, Yang XJ. [The effect of topiramate or carbamazepine treatment on the quality of life in patients with vestibular paroxysmia]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:1714-1716. [PMID: 29871181 DOI: 10.13201/j.issn.1001-1781.2016.21.12] [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: 08/21/2016] [Indexed: 11/12/2022]
Abstract
Objective:To study the effect of topiramate or carbamazepine treatment on the quality of life (QOL) in patients with vestibular paroxysmia(VP).Method:Thirty-five cases diagnosed as VP from September 2012 to September 2015 were retrospectively studied. Medical outcomes study short form(SF-36)and the dizziness handicap inventory(DHI) were used to analyze the QOL.Result:After topiramate or carbamazepine treatment for one month, the scores of physical function, role physical, general health, vitality, social functioning, role emotional in SF-36 were significantly increased than pre-treatment(P< 0.01); and the scores of emotion, function and physiology in DHI were significantly decreased than pre-treatment(P< 0.01).Conclusion:Topiramate and carbamazepine may obviously improve the QOL of VP patients.The SF-36 and DHI scales could reflect the change of QOL in VP patients.
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Affiliation(s)
- L X Luo
- Department of Neurology, the Affiliated Nanhai People's Hospital of Southern Medical University, Foshan, 528000, China
| | - J J Li
- Department of OtolaryngologyHead and Neck Surgery,the First People's Hospital of Foshan
| | - H Ye
- Department of Neurology, the Affiliated Nanhai People's Hospital of Southern Medical University, Foshan, 528000, China
| | - Z W Li
- Department of Neurology, the Affiliated Nanhai People's Hospital of Southern Medical University, Foshan, 528000, China
| | - H X Gong
- Department of Neurology, the Affiliated Nanhai People's Hospital of Southern Medical University, Foshan, 528000, China
| | - X J Yang
- Department of Neurology, the Affiliated Nanhai People's Hospital of Southern Medical University, Foshan, 528000, China
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Li YC, Li Z, Li ZW, Jiang YH, Weng BQ, Lin WX. Variations of rhizosphere bacterial communities in tea (Camellia sinensis L.) continuous cropping soil by high-throughput pyrosequencing approach. J Appl Microbiol 2016; 121:787-99. [PMID: 27377624 DOI: 10.1111/jam.13225] [Citation(s) in RCA: 40] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Revised: 06/19/2016] [Accepted: 06/29/2016] [Indexed: 11/30/2022]
Abstract
AIMS The goal was to investigate the dynamics of soil bacterial community in the chronosequence tea orchards. METHOD AND RESULTS In this study, soils from tea orchards with continuously cropping histories for 1, 10 and 20 years were collected for investigating rhizosphere bacterial communities using 454 pyrosequencing. The results indicated that Gammaproteobacteria, Alphaproteobacteria, Acidobacteria and Actinobacteria were the main phyla in the tea orchard soils and accounted for more than 60% of the bacterial sequences. At the genus level, the relative abundance of beneficial bacteria, such as Pseudomonas, Rhodanobacter, Bradyrhizobium, Mycobacterium and Sphingomonas, significantly decreased in the 20-year tea orchard soils. Similar patterns of bacterial community structure were observed between 1-year and 10-year tea orchards, which significantly differed from those of 20-year tea orchards. Redundancy analysis indicated that soil organic carbon and pH showed high correlations (positive or negative) with the majority of the taxa. CONCLUSION Long-term tea cultivation altered the composition and structure of soil bacterial community, which led to the reduction in the beneficial bacteria. SIGNIFICANCE AND IMPACT OF THE STUDY The results can provide clues on how to regulate the soil microbial community and maintain the health of soils in tea orchard systems.
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Affiliation(s)
- Y C Li
- Agroecological Institute, Fujian Agriculture and Forestry University, Fuzhou, China.,Agricultural Ecology Institute, Fujian Academy of Agricultural Sciences, Fuzhou, China
| | - Z Li
- Agroecological Institute, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Z W Li
- Agroecological Institute, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Y H Jiang
- Agroecological Institute, Fujian Agriculture and Forestry University, Fuzhou, China
| | - B Q Weng
- Agricultural Ecology Institute, Fujian Academy of Agricultural Sciences, Fuzhou, China
| | - W X Lin
- Agroecological Institute, Fujian Agriculture and Forestry University, Fuzhou, China
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Liu N, Li ZW. [Research progress of the gene polymorphisms of metabolic enzyme related to polycyclic aromatic hydrocarbons risk of preterm birth]. Zhonghua Yu Fang Yi Xue Za Zhi 2016; 50:463-7. [PMID: 27141907 DOI: 10.3760/cma.j.issn.0253-9624.2016.05.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The etiology and underlying biological mechanisms for preterm birth are relatively intricate, involving both genetic and environmental factors. Therefore, in the process of research on environmental factors of preterm birth, individual genetic susceptibility is an important aspect which cannot be ignored. Detoxification and metabolism abilities of enzymes to the environmental toxins is determined by their genetic polymorphism, which directly affect the toxic effects of poison. The measurement of gene polymorphisms related to metabolic enzymes may have important significance in the research of biological mechanisms, the risk prediction for preterm birth and the development of the preventive measures. In the recent studies, exposure to polycyclic aromatic hydrocarbons (PAH) seems to be an important risk factor for preterm birth. Cytochrome P450 (CYP450s) and glutathione S-transferases (GSTs) are the main metabolic enzymes of PAH and many other xenobiotics, and the polymorphisms of CYP1A1, CYP2E1, GSTM1, GSTT1 and GSTT2 may be associated with the risk of preterm birth. In this paper, we summarized that the research progress on the relationship between the gene polymorphisms of metabolic enzyme related to PAH and the risk of preterm birth.
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Affiliation(s)
- N Liu
- Institute of Reproductive and Child Health, Peking University/Ministry of Health Key Laboratory of Reproductive Health, Beijing 100191, China
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35
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Chen BL, Wang W, Xie H, Ge RR, Zhang ZY, Li ZW, Zhou XY, Zhou BX. Phase transformation of Cu-rich precipitates from 9R to 3R variant via ledges mechanism in ferritic steel containing copper. J Microsc 2015; 262:123-7. [PMID: 26599818 DOI: 10.1111/jmi.12352] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2015] [Accepted: 10/28/2015] [Indexed: 11/29/2022]
Abstract
Precipitates and solute enrich in aged ferritic steel containing copper were examined using high-resolution electron microscopy, high-angle annular dark-field scanning transmission electron microscopy and energy-dispersive X-ray spectroscopy. Two ledges with one-atom and two-atom layers height in the 9R/3R interface were observed. The enrichment of copper into two successive closed-packed planes with an interval of Fe-rich close-packed plane was detected. The passage of the Shockley partial, or the shearing, changes the stacking sequence of closed-packed planes. Finally, 9R Cu variant transformed into 3R Cu variant.
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Affiliation(s)
- B L Chen
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai, People's Republic of China
| | - W Wang
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai, People's Republic of China
| | - H Xie
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai, People's Republic of China
| | - R R Ge
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai, People's Republic of China
| | - Z Y Zhang
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai, People's Republic of China
| | - Z W Li
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai, People's Republic of China
| | - X Y Zhou
- School of Materials Engineering, Shanghai University of Engineering Science, Shanghai, People's Republic of China
| | - B X Zhou
- Institute of Materials, Shanghai University, Shanghai, People's Republic of China
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Drees Y, Li ZW, Ricci A, Rotter M, Schmidt W, Lamago D, Sobolev O, Rütt U, Gutowski O, Sprung M, Piovano A, Castellan JP, Komarek AC. Hour-glass magnetic excitations induced by nanoscopic phase separation in cobalt oxides. Nat Commun 2014; 5:5731. [PMID: 25534540 DOI: 10.1038/ncomms6731] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 11/02/2014] [Indexed: 11/09/2022] Open
Abstract
The magnetic excitations in the cuprate superconductors might be essential for an understanding of high-temperature superconductivity. In these cuprate superconductors the magnetic excitation spectrum resembles an hour-glass and certain resonant magnetic excitations within are believed to be connected to the pairing mechanism, which is corroborated by the observation of a universal linear scaling of superconducting gap and magnetic resonance energy. So far, charge stripes are widely believed to be involved in the physics of hour-glass spectra. Here we study an isostructural cobaltate that also exhibits an hour-glass magnetic spectrum. Instead of the expected charge stripe order we observe nano phase separation and unravel a microscopically split origin of hour-glass spectra on the nano scale pointing to a connection between the magnetic resonance peak and the spin gap originating in islands of the antiferromagnetic parent insulator. Our findings open new ways to theories of magnetic excitations and superconductivity in cuprate superconductors.
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Affiliation(s)
- Y Drees
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, D-01187 Dresden, Germany
| | - Z W Li
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, D-01187 Dresden, Germany
| | - A Ricci
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22603 Hamburg, Germany
| | - M Rotter
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, D-01187 Dresden, Germany
| | - W Schmidt
- Jülich Centre for Neutron Science JCNS, Forschungszentrum Jülich GmbH, Outstation at ILL, BP 156, 6 Rue Jules Horowitz, 38042 Grenoble, France
| | - D Lamago
- 1] Laboratoire Léon Brillouin, CEA/CNRS,F-91191 Gif-sur Yvette Cedex, UMR12 CEA-CNRS, Bât 563 CEA Saclay, France [2] Institute of Solid State Physics, Karlsruhe Institute of Technology, D-76021 Karlsruhe, Germany
| | - O Sobolev
- 1] Forschungsneutronenquelle Heinz Maier-Leibnitz (FRM-II), TU München, Lichtenbergstr. 1, D-85747 Garching, Germany [2] Georg-August-Universität Göttingen, Institut für Physikalische Chemie, Tammannstrasse 6, D-37077 Göttingen, Germany
| | - U Rütt
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22603 Hamburg, Germany
| | - O Gutowski
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22603 Hamburg, Germany
| | - M Sprung
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22603 Hamburg, Germany
| | - A Piovano
- Institut Laue-Langevin (ILL), 6 Rue Jules Horowitz, F-38043 Grenoble, France
| | - J P Castellan
- 1] Laboratoire Léon Brillouin, CEA/CNRS,F-91191 Gif-sur Yvette Cedex, UMR12 CEA-CNRS, Bât 563 CEA Saclay, France [2] Institute of Solid State Physics, Karlsruhe Institute of Technology, D-76021 Karlsruhe, Germany
| | - A C Komarek
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, D-01187 Dresden, Germany
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Kuo CY, Drees Y, Fernández-Díaz MT, Zhao L, Vasylechko L, Sheptyakov D, Bell AMT, Pi TW, Lin HJ, Wu MK, Pellegrin E, Valvidares SM, Li ZW, Adler P, Todorova A, Küchler R, Steppke A, Tjeng LH, Hu Z, Komarek AC. k=0 magnetic structure and absence of ferroelectricity in SmFeO3. Phys Rev Lett 2014; 113:217203. [PMID: 25479519 DOI: 10.1103/physrevlett.113.217203] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Indexed: 06/04/2023]
Abstract
SmFeO3 has attracted considerable attention very recently due to its reported multiferroic properties above room temperature. We have performed powder and single crystal neutron diffraction as well as complementary polarization dependent soft X-ray absorption spectroscopy measurements on floating-zone grown SmFeO3 single crystals in order to determine its magnetic structure. We found a k=0 G-type collinear antiferromagnetic structure that is not compatible with inverse Dzyaloshinskii-Moriya interaction driven ferroelectricity. While the structural data reveal a clear sign for magneto-elastic coupling at the Néel-temperature of ∼675 K, the dielectric measurements remain silent as far as ferroelectricity is concerned.
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Affiliation(s)
- C-Y Kuo
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - Y Drees
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | | | - L Zhao
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan
| | - L Vasylechko
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany and Lviv Polytechnic National University, 12 Bandera Street, 79013 Lviv, Ukraine
| | - D Sheptyakov
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
| | - A M T Bell
- HASYLAB at DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - T W Pi
- National Synchrotron Radiation Research Center (NSRRC), 101 Hsin-Ann Road, Hsinchu 30077, Taiwan
| | - H-J Lin
- National Synchrotron Radiation Research Center (NSRRC), 101 Hsin-Ann Road, Hsinchu 30077, Taiwan
| | - M-K Wu
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan
| | - E Pellegrin
- CELLS-ALBA Synchrotron Radiation Facility, Carretera BP 1413, km 3.3, E-08290 Cerdanyola del Vallès, Barcelona, Spain
| | - S M Valvidares
- CELLS-ALBA Synchrotron Radiation Facility, Carretera BP 1413, km 3.3, E-08290 Cerdanyola del Vallès, Barcelona, Spain
| | - Z W Li
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - P Adler
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - A Todorova
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - R Küchler
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - A Steppke
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - L H Tjeng
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - Z Hu
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - A C Komarek
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany
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Yang ZH, Li ZW, Zhao J, Yang YH. Synthesis and enhanced microwave properties of uniform hollow Fe nanospheres and their core–shell silica nanocomposites. RSC Adv 2014. [DOI: 10.1039/c3ra45142a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Li ZW, Wu WS, Du ZY, Hao XY. Structure and interaction between the [BMIM][Ala] alanine anion and the 1-butyl-3-methylimidazolium cation in ion pairs. J STRUCT CHEM+ 2013. [DOI: 10.1134/s0022476613040045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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40
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Li MT, Chen L, Li ZW, Ryu GH, Lin CT, Zhang JC. Enhancement of phase separation and superconductivity in Mn-doped K0.8Fe2-yMnySe2 crystals. J Phys Condens Matter 2013; 25:335701. [PMID: 23880791 DOI: 10.1088/0953-8984/25/33/335701] [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] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Single crystals of K0.8Fe2-yMnySe2 with slight Mn doping have been grown by a self-flux method. X-ray diffraction measurements show enhanced phase separation with increasing Mn doping in the compounds. The superconducting transition temperature increases to Tc,onset ∼ 46.1 K for the sample with y ∼ 0.03, as observed by electrical transport measurements. Our results demonstrate that the doping of Mn does not suppress the superconductivity, and on the contrary increases the superconducting shield fraction and transition temperature, an effect which may originate from the Mn dopant's high preference to fill into iron vacancies in the Mn-doped samples. It suggests that the Mn dopant can induce a local lattice strain or distortion that profitably modifies the microstructure of the superconducting/metallic phase, leading to superconductivity of the compound.
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Affiliation(s)
- M T Li
- Department of Physics, Shanghai University, Shanghai 200444, People's Republic of China
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41
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Cui W, Jin HB, Li ZW. Mechanism of the transforming growth factor-beta induction of fibronectin expression in hepatic stem-like cells. Braz J Med Biol Res 2009; 43:36-42. [PMID: 19936542 DOI: 10.1590/s0100-879x2009007500017] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2009] [Accepted: 11/04/2009] [Indexed: 02/08/2023] Open
Abstract
Transforming growth factor-beta1 (TGF-beta1) plays an important role in the fibrogenic process in the liver. The aim of the present study was to explore the action of TGF-beta1 on fibronectin expression in rat hepatic stem-like cells and the underlying mechanisms. The level of fibronectin expression was determined in hepatic stem-like cells (WB cells) before and after TGF-beta1 stimulation by RT-PCR and Western blot methods. Using immunogold transmission electron microscopy and the Western blot method, we observed the result of the expression and the distribution of cAMP, phosphorylated Smad3 and Smad7 before and after TGF-beta1 treatment. The levels of fibronectin expression in both mRNA and protein increased 4- to 5-fold after TGF-beta1 stimulation, reaching an optimum level after 8 h and then gradually falling back. Similarly, TGF-beta1 stimulation resulted in an increase of cAMP in WB cells, peaking at 8 h. After treatment with TGF-beta1 for 24 h, the expression of cAMP gradually decreased. In addition, we found that TGF-beta1 treatment also contributed to the increased expression and to changes in cellular distribution of phosphorylated Smad3 (translocation from the cytoplasm to the nucleus) and Smad7 (translocation from the nucleus to the cytoplasm) in WB cells. The present study demonstrates that TGF-beta is involved in the fibrogenic process in hepatic stem cells through up-regulation of fibronectin expression, and the mechanisms underlying this process may be associated with the activation of cAMP and Smad pathways.
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Affiliation(s)
- W Cui
- Department of Infectious Diseases, Shengjing Hospital Affiliated to China Medical University, Shenyang, China
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42
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Euaruksakul C, Li ZW, Zheng F, Himpsel FJ, Ritz CS, Tanto B, Savage DE, Liu XS, Lagally MG. Influence of strain on the conduction band structure of strained silicon nanomembranes. Phys Rev Lett 2008; 101:147403. [PMID: 18851573 DOI: 10.1103/physrevlett.101.147403] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2008] [Indexed: 05/26/2023]
Abstract
The influence of in-plane biaxial strain on the conduction bands of Si is explored using elastically strained Si(001) nanomembranes and high-resolution x-ray absorption measurements with electron yield detection. The strain-induced splitting of the conduction band minimum and the energy shifts of two higher conduction bands near L1 and L3 are clearly resolved. The linear increase of the splitting of the conduction band minimum with increasing strain and the nonlinear shift of the L1 point toward the conduction band minimum agree quantitatively with current theories.
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Affiliation(s)
- C Euaruksakul
- University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
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43
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Abstract
A single ion channel signal was analysed by the power distribution fraction constructed by a discrete wavelet transform. Average opening time and energy distribution of the signal can be obtained directly by this method. The method can also be used when the signal is corrupted by noise. By contrast, the conventional frequency domain analysis method--power spectral density--is less effective. Power distribution fraction will therefore give more useful information in analysis of experimental ion channel signals, principally by giving values of the mean channel opening time. The method may be applied to distinguish different ion channels more efficiently and to find their reactions to drugs.
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Affiliation(s)
- Z Y Chen
- Chemistry Department, Huazhong University of Science and Technology, Wuhan 430074, China
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Gu YG, Xia LF, Li ZW, Zhao MF, Yang HY, Luo QY, Xia WH, Feng QY. [Study on schistosomiasis control strategy in Ertan reservoir]. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2003; 19:225-8. [PMID: 12571971] [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: 02/28/2023]
Abstract
OBJECTIVE To explore means and strategies of preventing the spread of schistosomasis transmission due to the building of Ertan Dam. METHODS To eliminate the infection sources and Oncomelania snails. To install concrete irrigation and piping system of water supply. To encourage the immigrants to build methane-generating tanks and improve sanitary facilities and conditions for families who live near the water-retaining line. RESULTS 2,360 people and 152 cattle were treated for schistosome infection. Mollusciciding and environmental modification were made for eliminating snails at an area of 3,634,580 m2 and 67,105.5 m2 respectively. The length of concrete irrigation and piping system installed was 51.13 and 104.895 km respectively. Methane-generating tanks, water-heating instruments using solar energy and other sanitary facilities were established in 1,781 households. After three-year intervention, no infected snails were found and no infected human being, cattle and wild rats were detected. CONCLUSION Schistosomiasis control was financially supported since the very beginning of the Ertan Dam project, which provided a condition for sustainable development. Continued surveillance of snails and infection sources should be carried out, which will provide scientific basis for schistosomiasis control in the Three Gorges region as well as other new projects of hydropower and water conservancy in endemic area.
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Affiliation(s)
- Y G Gu
- Anti-schistosomiasis Station of Yanbian County, Yanbian 617100
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Abstract
trans-[Os(en)(2)pyH](Otf)(2), 2, is recovered from an acidic solution of trans-[Os(en)(2)py(H(2))](OTf)(2), 1, which has been subjected to one electron oxidation. The structures of both 1 and 2 have been determined by single crystal X-ray analysis. In cyclic voltammetry, 2 shows a one electron oxidation wave at 0.95 V and a one electron reduction wave at -1.2 V, neither accompanied by a signal for the reverse process. Reduction of 2 by Zn/Hg in methanol solution leads to quantitative formation of [Os(en)(2)(py)H(2))](2+), predominantly in the trans-form. In aqueous solution, species 2 reacts rapidly with N-methylacridium ion, [MAH](+), by hydride transfer. One electron chemical oxidation of 2 to the corresponding Os(IV) is slower than that of 1 to 2 owing to the increase in coordination number when Os(IV) is produced. Treatment of 1, or the cis-form, 1', in DMSO by sodium t-butoxide produces mainly the corresponding isomers of the monohydrides of Os(II), that derived from 1' is deep red in color while the trans-monohydride is colorless. Both react with [MAH](+) to form [MAH](2), and both disappear rapidly in acetone or acetonitrile, presumably by reducing the solvents. Reaction of trans-[Os(NH(3))(4)(H(2))H(2)O](BPh(4))(2), 4, in acetone-d(6) as solvent with either CH(3)CHO or styrene leads to hydrogenation of the substrate. Reactions which compete with trans-[Os(en)(2)(eta(2)-H(2))(CF(3)SO)(3)]CF(3)SO(3) release of substrate from the trans-complex before isomerization to the cis-form, required for hydrogenation to occur, result in the trans-derivative of the added solute. When H(2)C=CH-CH(2)-SCH(3) is the substrate, binding takes place at sulfur. Complete conversion to the cis-substrate isomer is observed, without hydrogenation occurring even though contact between dihydrogen and the double bond is possible.
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Affiliation(s)
- J Scott McQueen
- Department of Chemistry, Stanford University, Stanford, California 94305, USA
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Abstract
This study aimed to explore whether NKB could modulate the responses mediated by ATP receptor (P2X purinoceptor). Whole-cell patch clamp and repatch experiments were performed on cultured rat DRG neurons. The majority of neurons examined were sensitive both to ATP and to NKB (77.1%, 54/70). NKB preapplied could potentiate ATP-activated currents (I(ATP)) markedly; this effect was concentration-dependent and could be blocked by SR 142801, an NK3 receptor antagonist. Preapplication of 0.001, 0.01, 0.1 and 1.0 microM NKB increased ATP-activated currents by 55.1+/-18.8, 75.2+/-17.4, 84.1+/-18.8 and 81.0+/-21.7%, respectively. The concentration-response curves for ATP with and without preapplication of NKB show that: (1) preapplication of NKB shifted the curve upwards; (2) the maximal amplitude of I(ATP) with NKB preapplication increased by 78.5%, while the threshold value remained unchanged; (3) the EC(50) values of the two curves were very close (44 vs. 42 microM). Intracellular dialysis of H-7 by using repatch clamp technique could block the potentiation of I(ATP) by NKB. It suggests that this potentiating effect was caused by phosphorylation of ATP receptor, which resulted from the activation of G protein coupled NK3 receptor and consequential intracellular signal transduction cascade.
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Affiliation(s)
- M J Wang
- Research Center of Experimental Medicine, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan 430030, PR China
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Wang QW, Li ZW, Wang F, Yang JQ. Modulation by divalent cations of GABA rho 1 receptor from human retina expressed in Xenopus oocytes. Biomed Environ Sci 2001; 14:269-77. [PMID: 11862606] [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: 05/23/2023]
Abstract
OBJECTIVE To investigate functional homooligomeric GABA rho 1 receptors expressed in Xenopus oocytes and the modulation of divalent cations. METHODS GABA rho 1 cDNA from human retina was transcribed in vitro to obtain sense rho 1 mRNA, which was microinjected into Xenopus oocytes. Two-electrodes voltage clamp technique was performed to record GABA-induced currents. RESULTS Expressed receptors were found to have similar properties to GABAc receptors characterized in the retina. Cl-currents induced by GABA were blocked by picrotoxin instead of bicuculline. GABA-induced currents reversed at -19 +/- 2.5 mV, and EC50 was 3.3 mumol/L. Zn++ modulated GABA-induced currents with an IC50 = 9.6 mumol/L. Ni++, Cu++ and Cd++ inhibited GABA rho 1 obviously, too. Their rank order of potency was Zn++ > Ni++ > Cu++ > Cd++. CONCLUSION Zinc (10 mumol/L) inhibited GABA-induced currents in a competitive manner, and its action was sensitive to extracellular pH. Site-directed mutagenesis revealed that substitution of a single histidine residue (H44 and H48) failed to affect zinc sensitivity.
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Affiliation(s)
- Q W Wang
- Research Center of Basic Medicine, Wuhan Institute of Children Disease, Wuhan 430016, People's Republic of China.
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48
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Wang QW, Wang XQ, Wang F, Li ZW. [Modulation of SKF38393 and clonidine on expressed GABA(A) receptors in Xenopus oocytes]. Zhongguo Ying Yong Sheng Li Xue Za Zhi 2001; 17:333-336. [PMID: 21207691] [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: 05/30/2023]
Abstract
AIM AND METHODS The present research is performed on Xenopus oocytes injected with rat DRG mRNA. Modulatory effects of SKF38393 and Clonidine on GABAS(A) receptors expressed in Xenopus oocytes was investigated by two-electrodes voltage-clamp technique, and it is compared with the neurons fresh isolated. RESULTS It is found that SKF38393 and Clonidine inhibitable GABA(A) receptor function obviously by a concentration-dependent manner. There is an interaction between SKF38393- and Clonidine-induced currents. The inhibition of SKF38393 and Clonidine on GABA(A) receptors is noncompetitive and voltage-independent. CONCLUSIONS The results suggest that the inhibition by SKF38393 and clonidine of GABA-activated current might be a result of phosphorylation of GABA(A) receptor following action of second messenger and the thereby mediated intracellular transduction.
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Affiliation(s)
- Q W Wang
- Wuhan Institute of Children Disease, Wuhan 430016, China
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Yuan M, Konstantopoulos N, Lee J, Hansen L, Li ZW, Karin M, Shoelson SE. Reversal of obesity- and diet-induced insulin resistance with salicylates or targeted disruption of Ikkbeta. Science 2001; 293:1673-7. [PMID: 11533494 DOI: 10.1126/science.1061620] [Citation(s) in RCA: 1393] [Impact Index Per Article: 60.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We show that high doses of salicylates reverse hyperglycemia, hyperinsulinemia, and dyslipidemia in obese rodents by sensitizing insulin signaling. Activation or overexpression of the IkappaB kinase beta (IKKbeta) attenuated insulin signaling in cultured cells, whereas IKKbeta inhibition reversed insulin resistance. Thus, IKKbeta, rather than the cyclooxygenases, appears to be the relevant molecular target. Heterozygous deletion (Ikkbeta+/-) protected against the development of insulin resistance during high-fat feeding and in obese Lep(ob/ob) mice. These findings implicate an inflammatory process in the pathogenesis of insulin resistance in obesity and type 2 diabetes mellitus and identify the IKKbeta pathway as a target for insulin sensitization.
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Affiliation(s)
- M Yuan
- Joslin Diabetes Center and Department of Medicine, Harvard Medical School, Boston, MA 02215, USA
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50
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Kim JK, Kim YJ, Fillmore JJ, Chen Y, Moore I, Lee J, Yuan M, Li ZW, Karin M, Perret P, Shoelson SE, Shulman GI. Prevention of fat-induced insulin resistance by salicylate. J Clin Invest 2001; 108:437-46. [PMID: 11489937 PMCID: PMC209353 DOI: 10.1172/jci11559] [Citation(s) in RCA: 543] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Insulin resistance is a major factor in the pathogenesis of type 2 diabetes and may involve fat-induced activation of a serine kinase cascade involving IKK-beta. To test this hypothesis, we first examined insulin action and signaling in awake rats during hyperinsulinemic-euglycemic clamps after a lipid infusion with or without pretreatment with salicylate, a known inhibitor of IKK-beta. Whole-body glucose uptake and metabolism were estimated using [3-(3)H]glucose infusion, and glucose uptake in individual tissues was estimated using [1-(14)C]2-deoxyglucose injection during the clamp. Here we show that lipid infusion decreased insulin-stimulated glucose uptake and activation of IRS-1-associated PI 3-kinase in skeletal muscle but that salicylate pretreatment prevented these lipid-induced effects. To examine the mechanism of salicylate action, we studied the effects of lipid infusion on insulin action and signaling during the clamp in awake mice lacking IKK-beta. Unlike the response in wild-type mice, IKK-beta knockout mice did not exhibit altered skeletal muscle insulin signaling and action following lipid infusion. In summary, high-dose salicylate and inactivation of IKK-beta prevent fat-induced insulin resistance in skeletal muscle by blocking fat-induced defects in insulin signaling and action and represent a potentially novel class of therapeutic agents for type 2 diabetes.
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Affiliation(s)
- J K Kim
- Howard Hughes Medical Institute, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut 06536-8012, USA
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