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Sang D, Fan SM, Li SY, Zhang JT, Wang HM, Zhao XH, Zheng LJ, Liang P, Xi GB, Zhao LM, Zhang YR, Yuan P. [Mid-term analysis of prospective cohort study of rivaroxaban in preventing CRT in breast cancer]. Zhonghua Zhong Liu Za Zhi 2024; 46:256-262. [PMID: 38494772 DOI: 10.3760/cma.j.cn112152-20231024-00218] [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: 03/19/2024]
Abstract
Objective: To explore the efficacy and safety of Rivaroxaban in preventing catheter related thrombosis (CRT) in patients with breast cancer who are undergoing central venous catheter chemotherapy, and provide basis for making standardized prevention and treatment strategies. Methods: In this research, a prospective cohort study was adopted, and breast cancer patients who received central venous catheter chemotherapy in Sanhuan Cancer Hospital during September 2020 to March 2022 were selected as a treatment group to take the rivaroxaban anticoagulation therapy with 10 mg.po.qd for one month. The control group got no preventive anticoagulation therapy. Vascular ultrasound examination was taken to confirm the occurrence of CRT, and a chi-square test was done for comparison the disparity between the groups. Logistic regression was applied to analyze the univariate and multivariate factors for the formation of CRT. Results: In the research, a total of 235 patients were selected, and there were a total of 19 035 days of catheterization with 81 days of catheterization on average. While in the control group, the incidence of CRT was 28.0% (33/118), the incidence of CRT in the treatment group was 20.5% (24/117), the difference was no significant (P=0.183). Subgroup analysis results showed that the peripherally inserted central catheter (PICC) was performed in 165 cases with the CRT incidence of 18.2% (30/165) and thrombosis was mostly seen around axillary vein, accounting for 63.3%. Subclavian vein catheterization was performed in 63 cases with the CRT incidence of 39.7% (25/63), and thrombosis was mostly seen around subclavian vein, accounting for 88.0% (22/25). Implantable venous access port was implanted in 7 cases around subclavian vein and internal jugular vein with the CRT incidence of 28.6% (2/7). The patients who developed CRT within 30 days after catheterization accounted for 54.4% (31/57), 22.8% (13/57) in a period during 30 days and 60 days) and 22.8% (13/57) in a period during 60 days and 180 days). The diagnosed CRT patients had been treated with rivaroxaban 15 mg.bid.po for 3 months. During the 3 months, 100.0% of the thrombosis waned, 71.9% (41/57) of the thrombosis waned within 30 days, 19.3% (11/57) in a period during 30 and 60days and 8.8% (5/57) in a period during 60 days and 90 days. Univariate and multivariate analysis indicated that the risk of CRT in subclavian vein catheterization was higher than that in PICC, respectively (OR=2.898, 95% CI:1.386-6.056 P=0.005), and the type of catheterization was an independent factor for the formation of thrombosis. Safety analysis result showed that in the prevention of CRT, rivaroxaban treatment did not induce drug-related bleeding, liver function damage, bone marrow suppression or any other side effects. While CRT diagnosed patients were treated with anticoagulation, they kept the central venous catheter, and the infusion was smooth. These patients all finished the anti-tumor treatment as planned, and no abnormalities like new thrombosis or pulmonary embolism were observed. Conclusions: In the mid-term analysis, the proportion of Rivaroxaban in preventing anticoagulant CRT decreases, but it don't reach statistical significance. The sample size should be further increased for observation. Rivaroxaban is proved effective and very safe in the treatment of CRT, and does not affect the concurrent chemotherapy. Medical personnel should carry out the policy of "early prevention, early detection and early treatment" for CRT so as to improve the patients' quality of life.
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Affiliation(s)
- D Sang
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - S M Fan
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - S Y Li
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - J T Zhang
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - H M Wang
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - X H Zhao
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - L J Zheng
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - P Liang
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - G B Xi
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - L M Zhao
- Department of VIP Medical Services, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y R Zhang
- Department of Medical Oncology, Beijing Chaoyang District Sanhuan Cancer Hospital, Beijing 100122,China
| | - P Yuan
- Department of VIP Medical Services, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Zhang Z, Xi Y, Liu DF, Mao JM, Zhang HT, Lin HC, Tang WH, Jiang H, Hong K, Zhao LM. Sperm retrieval outcomes of contralateral testis in men with nonobstructive azoospermia and unsuccessful unilateral microdissection testicular sperm extraction. Fertil Steril 2024; 121:540-542. [PMID: 38036241 DOI: 10.1016/j.fertnstert.2023.11.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 11/10/2023] [Accepted: 11/21/2023] [Indexed: 12/02/2023]
Affiliation(s)
- Zhe Zhang
- Department of Urology, Peking University Third Hospital, Beijing, People's Republic of China; Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, People's Republic of China
| | - Yu Xi
- Department of Urology, Peking University Third Hospital, Beijing, People's Republic of China; Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, People's Republic of China
| | - De-Feng Liu
- Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, People's Republic of China
| | - Jia-Ming Mao
- Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, People's Republic of China
| | - Hai-Tao Zhang
- Department of Urology, Peking University Third Hospital, Beijing, People's Republic of China; Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, People's Republic of China
| | - Hao-Cheng Lin
- Department of Urology, Peking University Third Hospital, Beijing, People's Republic of China; Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, People's Republic of China
| | - Wen-Hao Tang
- Department of Urology, Peking University Third Hospital, Beijing, People's Republic of China; Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, People's Republic of China
| | - Hui Jiang
- Department of Urology, Peking University First Hospital, Beijing, People's Republic of China; Institute of Urology, Peking University, Beijing, People's Republic of China
| | - Kai Hong
- Department of Urology, Peking University Third Hospital, Beijing, People's Republic of China; Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, People's Republic of China
| | - Lian-Ming Zhao
- Department of Urology, Peking University Third Hospital, Beijing, People's Republic of China; Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, People's Republic of China.
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Jiang H, Zhao LM, Yan S, Liu JH, Zhu ZH, Luo JD, Dai YT, Li FB, Lin HC, Zhang ZC. Long-term tadalafil once daily in Chinese men with erectile dysfunction: a 2-year final analysis of a post-marketing, multicenter, randomized, open-label trial. Asian J Androl 2024:00129336-990000000-00156. [PMID: 38284776 DOI: 10.4103/aja202370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 11/16/2023] [Indexed: 01/30/2024] Open
Abstract
The long-term safety and effectiveness of once-daily tadalafil is crucial, but limited data are available in Chinese patients with erectile dysfunction (ED). In this post-marketing, multicenter, randomized, open-label trial with 2-year follow-up, 635 ED cases were randomized to receive daily oral tadalafil 2.5 mg or 5 mg for 3 months, of whom 580 continued once-daily tadalafil 5 mg for 21 months. Treatment-emergent adverse events in the 12-month and 24-month period were similar, with the most common being viral upper respiratory tract infection, upper respiratory tract infection, and headache. Significant improvement from baseline in the International Index of Erectile Function-Erectile Function (IIEF-EF) score was detected at month 12 (least squares mean [LSM] change: 7.9, 95% confidence interval [CI]: 7.5-8.4, P < 0.001) and was maintained to month 24 (LSM change: 8.6, 95% CI: 8.1-9.0, P < 0.001). The proportions of patients regaining normal erectile function (IIEF-EF score ≥26) were 43.7% and 48.0% at months 12 and 24, respectively. Global Assessment Questionnaire results showed improved erection function in 97.5% of patients and improved ability to engage in sexual activity in 95.9% of patients at month 12; these values were 96.1% and 95.0% at month 24, respectively. The quality of sexual life score based on the Sexual Life Quality Questionnaire (SLQQ) was increased by 52.2% at month 12 and by 55.3% at month 24 (both P < 0.001). The treatment satisfaction score determined by SLQQ (mean ± standard deviation) was 62.4 ± 21.0 at month 12 versus 65.9 ± 20.2 at month 24. Two-year daily application of tadalafil 5 mg in Chinese men with ED showed a favorable safety profile and durable improvement in sexual performance and satisfaction.
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Affiliation(s)
- Hui Jiang
- Department of Urology, Peking University First Hospital, Beijing 100000, China
| | - Lian-Ming Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Su Yan
- Department of Urology, Peking Union Medical College Hospital, Beijing 100730, China
| | - Ji-Hong Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhao-Hui Zhu
- Department of Urology, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jin-Dan Luo
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Yu-Tian Dai
- Department of Andrology, Nanjing Drum Tower Hospital, Nanjing 210008, China
| | - Fu-Biao Li
- Department of Andrology, The First Hospital of Jilin University, Changchun 130021, China
| | - Hao-Cheng Lin
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Zhi-Chao Zhang
- Andrology Center, Department of Urology, Peking University First Hospital, Beijing 100034, China
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Liu DF, Wu H, Zhang Z, Hong K, Lin HC, Mao JM, Xu HY, Zhao LM, Jiang H. Factors influencing the sperm retrieval rate of microdissection testicular sperm extraction in patients with nonmosaic Klinefelter syndrome. Asian J Androl 2023; 25:704-707. [PMID: 37005982 DOI: 10.4103/aja2022124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 02/09/2023] [Indexed: 04/03/2023] Open
Abstract
To investigate the factors affecting the sperm retrieval rate of microdissection testicular sperm extraction (micro-TESE) in patients with nonmosaic Klinefelter syndrome (KS), 64 patients with nonmosaic KS who underwent micro-TESE in the Center for Reproductive Medicine of Peking University Third Hospital (Beijing, China) between January 2016 and December 2017 were included in the study. Data on medical history, physical examination and laboratory examination results, and micro-TESE outcomes were collected. Patients were divided into two groups according to micro-TESE outcomes. The following factors were compared between the two groups by the Mann‒Whitney U test or Student's t-test based on the distribution (nonnormal or normal) of the factors: age, testicular size, follicle-stimulating hormone level, luteinizing hormone level, testosterone level, and anti-Müllerian hormone level. The overall success rate of sperm retrieval was 50.0%. Correlation analysis showed that testicular volume was positively correlated with testosterone level. Using a logistic regression model, age and anti-Müllerian hormone levels were found to be better predictors for the sperm retrieval rate than the other parameters.
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Affiliation(s)
- De-Feng Liu
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - Han Wu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Zhe Zhang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Kai Hong
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Hao-Cheng Lin
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Jia-Ming Mao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - Hui-Yu Xu
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - Lian-Ming Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Hui Jiang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
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Tian SY, Li Y, Zhao LM, He HY. [Clinicopathological characteristics of Klinefelter syndrome: a testicular biopsy analysis of 87 cases]. Zhonghua Bing Li Xue Za Zhi 2023; 52:341-346. [PMID: 36973193 DOI: 10.3760/cma.j.cn112151-20221216-01045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Objective: To investigate the clinicopathological characteristics of testicular biopsies from Klinefelter syndrome (KS) patients. Methods: The testicular biopsy specimens of 87 patients with KS (a total of 107 biopsy specimens) were collected from the Department of Pathology, Peking University Third Hospital, Beijing, China from January 2017 to July 2022. All patients were diagnosed as KS by peripheral blood karyotyping analysis. The testicular histopathologic features, testicular volume and hormone levels were evaluated retrospectively. The histopathologic analysis was used to assess the quantity and morphology of Leydig cells, the spermatogenic state of seminiferous tubules, the thickening of the basement membrane of seminiferous tubules and the changes of stroma. Results: Leydig cell proliferative nodules were seen in 95.3% (102/107) of KS testicular biopsy tissues. The eosinophilic inclusion bodies and lipofuscin in Leydig cells were found in 52.3% (56/107) and 57.9% (62/107) of specimens, respectively. The Sertoli cell only seminiferous tubules and the hyalinized tubules were found in 66.4% (71/107) and 76.6% (82/107) of the examined tissues, respectively. The tubules with complete spermatogenic arrest were found in 15.9% (17/107) of specimens, and 5.6% (6/107) of the specimens showed low spermatogenesis or incomplete spermatogenic arrest. In 85.0% (91/107) of the specimens, increased thick-walled small vessels with hyaline degeneration were identified. Conclusions: The most common features of KS testicular specimens are Leydig cell proliferative nodules, hyaline degeneration of seminiferous tubules and proliferation of thick-walled blood vessels. Testicular biopsy specimens of KS are rare. The pathologists can make a tentative diagnosis of KS based on the histological findings, combined with the ultrasound and laboratory results, which is helpful for further diagnosis and treatment of KS.
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Affiliation(s)
- S Y Tian
- Department of Pathology, School of Basic Medical Sciences, Peking University Third Hospital, Beijing 100191, China
| | - Y Li
- Department of Pathology, School of Basic Medical Sciences, Peking University Third Hospital, Beijing 100191, China
| | - L M Zhao
- Department of Urology, Peking University Third Hospital,Beijing 100191, China
| | - H Y He
- Department of Pathology, School of Basic Medical Sciences, Peking University Third Hospital, Beijing 100191, China
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6
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Zhao QC, Zhang Z, Zhao LM, Deng ZF, Gao JM, Zhang HL, Lin HC, Liu DF, Mao JM, Zhang HT, Chen YL, Tang WH, Jiang H. A retrospective cohort study of geographic differences in the semen of 1,012 sperm donors in China. Transl Androl Urol 2023; 12:187-196. [PMID: 36915889 PMCID: PMC10006001 DOI: 10.21037/tau-22-578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 12/02/2022] [Indexed: 02/09/2023] Open
Abstract
Background Male reproductive health has become a serious public health concern, and semen quality is essential to male reproduction. We aimed to investigate geographical differences in the semen quality of sperm donors from northern and southern China by enrolling donors across the country. Methods A total of 1,012 sperm donors were enrolled in this study between 2015 and 2019. Donors were first divided into two parts based on their birthplace according to the "Qinling-Huaihe" line, and secondly, by their residential latitude. Finally, donors were re-classified into two groups (typically north and south) which contained 667 samples. Results Statistically significant differences in sperm concentration were observed among men from different latitudes in China (P=0.04). The sperm concentrations of males from 18° to 27° north latitude were significantly lower than those from 36° to 45° and 45° to 54° [median 131, 134, and 146, respectively, P=0.021 (18° to 27° vs. 36° to 45°) and P=0.01 (18° to 27° vs. 45° to 54°)]. Conclusion We hypothesize environmental pollution and mental stress due to the increased population size may be the main factors underlying differences in the sperm quality of men in northern and southern China.
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Affiliation(s)
- Qian-Cheng Zhao
- Department of Human Sperm Bank, Peking University Third Hospital, Beijing, China
| | - Zhe Zhang
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Lian-Ming Zhao
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Zhen-Feng Deng
- Department of Natural Medicine, Peking University School of Pharmaceutical Sciences, Beijing, China
| | - Jiang-Man Gao
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, China
| | - Hong-Liang Zhang
- Department of Human Sperm Bank, Peking University Third Hospital, Beijing, China
| | - Hao-Cheng Lin
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - De-Feng Liu
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Jia-Ming Mao
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Hai-Tao Zhang
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Yu-Long Chen
- Department of Urban and Rural Planning, Peking University, Beijing, China
| | - Wen-Hao Tang
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Hui Jiang
- Department of Urology, Peking University Third Hospital, Beijing, China
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Zhang Z, Yang YZ, Zhang HT, Xi Y, Wang CT, Liu DF, Mao JM, Lin HC, Tang WH, Zhao LM, Zhang XS, Dai YT, Jiang H. Psychological status of infertile men during the Coronavirus Disease 2019 Pandemic in China: a cross-sectional investigation. Basic Clin Androl 2023; 33:8. [PMID: 36792987 PMCID: PMC9931448 DOI: 10.1186/s12610-022-00177-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 11/24/2022] [Indexed: 02/17/2023] Open
Abstract
BACKGROUND The coronavirus disease 2019 (COVID-19) outbreak has had a widespread and profound impact on people's mental health. The factors associated with mental symptoms among men diagnosed with infertility, a disease closely related to psychological conditions, remain unclear. The aim of this study is to investigate the risk factors associated with mental symptoms among infertile Chinese men during the pandemic. RESULTS A total of 4,098 eligible participants were recruited in this cross-sectional, nationwide study, including 2,034 (49.6%) with primary infertility and 2,064 (50.4%) with secondary infertility. The prevalence of mental health conditions was 36.3%, 39.6%, and 6.7% for anxiety, depression, and post-pandemic stress, respectively. Sexual dysfunction is associated with a higher risk with adjusted odds ratios (ORs) of 1.40 for anxiety, 1.38 for depression, and 2.32 for stress. Men receiving infertility drug therapy displayed a higher risk for anxiety (adjusted OR, 1.31) and depression (adjusted OR, 1.28) symptoms, while those receiving intrauterine insemination had a lower risk of anxiety (adjusted OR, 0.56) and depression (adjusted OR, 0.55) symptoms. CONCLUSION The COVID-19 pandemic has had a significant psychological impact on infertile men. Several psychologically vulnerable populations were identified, including individuals with sexual dysfunction, respondents receiving infertility drug therapy, and those experiencing control measures for COVID-19. The findings provide a comprehensive profile of the mental health status of infertile Chinese men during the COVID-19 outbreak and provide potential psychological intervention strategies.
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Affiliation(s)
- Zhe Zhang
- grid.411642.40000 0004 0605 3760Department of Urology, Peking University Third Hospital, Beijing, China ,grid.411642.40000 0004 0605 3760Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, China
| | - Yu-Zhuo Yang
- grid.411642.40000 0004 0605 3760Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, China
| | - Hai-Tao Zhang
- grid.411642.40000 0004 0605 3760Department of Urology, Peking University Third Hospital, Beijing, China ,grid.411642.40000 0004 0605 3760Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, China
| | - Yu Xi
- grid.411642.40000 0004 0605 3760Department of Urology, Peking University Third Hospital, Beijing, China ,grid.411642.40000 0004 0605 3760Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, China
| | - Cun-Tong Wang
- grid.411054.50000 0000 9894 8211School of Social Development, Central University of Finance and Economics, Beijing, China
| | - De-Feng Liu
- grid.411642.40000 0004 0605 3760Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, China
| | - Jia-Ming Mao
- grid.411642.40000 0004 0605 3760Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, China
| | - Hao-Cheng Lin
- grid.411642.40000 0004 0605 3760Department of Urology, Peking University Third Hospital, Beijing, China ,grid.411642.40000 0004 0605 3760Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, China
| | - Wen-Hao Tang
- grid.411642.40000 0004 0605 3760Department of Urology, Peking University Third Hospital, Beijing, China ,grid.411642.40000 0004 0605 3760Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, China
| | - Lian-Ming Zhao
- grid.411642.40000 0004 0605 3760Department of Urology, Peking University Third Hospital, Beijing, China ,grid.411642.40000 0004 0605 3760Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, China
| | - Xian-Sheng Zhang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
| | - Yu-Tian Dai
- Department of Andrology, Nanjing Drum Tower Hospital, Nanjing, China.
| | - Hui Jiang
- Department of Urology, Peking University Third Hospital, Beijing, China. .,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing, China.
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Deng CY, Liu DF, Zhao LM, Lin HC, Mao JM, Zhang Z, Yang YZ, Zhang HT, Hong K, Xu HY, Jiang H. Development of a predictive model for increasing sperm retrieval success by microdissection testicular sperm extraction in patients with nonobstructive azoospermia. Asian J Androl 2023; 25:369254. [PMID: 36814170 PMCID: PMC10521962 DOI: 10.4103/aja2022111] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 09/20/2022] [Accepted: 12/15/2022] [Indexed: 02/11/2023] Open
Abstract
Microdissection testicular sperm extraction (micro-TESE) is widely used to treat nonobstructive azoospermia. However, a good prediction model is required to anticipate a successful sperm retrieval rate before performing micro-TESE. This retrospective study analyzed the clinical records of 200 nonobstructive azoospermia patients between January 2021 and December 2021. The backward method was used to perform binary logistic regression analysis and identify factors that predicted a successful micro-TESE sperm retrieval. The prediction model was constructed using acquired regression coefficients, and its predictive performance was assessed using the receiver operating characteristic curve. In all, 67 patients (sperm retrieval rate: 33.5%) underwent successful micro-TESE. Follicle-stimulating hormone, anti-Müllerian hormone, and inhibin B levels varied significantly between patients who underwent successful and unsuccessful micro-TESE. Binary logistic regression analysis yielded the following six predictors: anti-Müllerian hormone (odds ratio [OR] = 0.902, 95% confidence interval [CI]: 0.821-0.990), inhibin B (OR = 1.012, 95% CI: 1.001-1.024), Klinefelter's syndrome (OR = 0.022, 95% CI: 0.002-0.243), Y chromosome microdeletion (OR = 0.050, 95% CI: 0.005-0.504), cryptorchidism with orchiopexy (OR = 0.085, 95% CI: 0.008-0.929), and idiopathic nonobstructive azoospermia (OR = 0.031, 95% CI: 0.003-0.277). The prediction model had an area under the curve of 0.720 (95% CI: 0.645-0.794), sensitivity of 65.7%, specificity of 72.2%, Youden index of 0.379, and cut-off value of 0.305 overall, indicating good predictive value and accuracy. This model can assist clinicians and nonobstructive azoospermia patients in decision-making and avoiding negative micro-TESE results.
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Affiliation(s)
- Chen-Yao Deng
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
- Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - De-Feng Liu
- Department of Andrology, Peking University Third Hospital, Beijing 100191, China
- Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - Lian-Ming Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
- Department of Andrology, Peking University Third Hospital, Beijing 100191, China
- Department of Human Sperm Bank, Peking University Third Hospital, Beijing 100191, China
| | - Hao-Cheng Lin
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
- Department of Andrology, Peking University Third Hospital, Beijing 100191, China
- Department of Human Sperm Bank, Peking University Third Hospital, Beijing 100191, China
| | - Jia-Ming Mao
- Department of Andrology, Peking University Third Hospital, Beijing 100191, China
- Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - Zhe Zhang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
- Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - Yu-Zhuo Yang
- Department of Andrology, Peking University Third Hospital, Beijing 100191, China
- Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - Hai-Tao Zhang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
- Department of Andrology, Peking University Third Hospital, Beijing 100191, China
- Department of Human Sperm Bank, Peking University Third Hospital, Beijing 100191, China
| | - Kai Hong
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
- Department of Andrology, Peking University Third Hospital, Beijing 100191, China
- Department of Human Sperm Bank, Peking University Third Hospital, Beijing 100191, China
| | - Hui-Yu Xu
- Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - Hui Jiang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
- Department of Andrology, Peking University Third Hospital, Beijing 100191, China
- Department of Human Sperm Bank, Peking University Third Hospital, Beijing 100191, China
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Zhang Z, Wu H, Zheng L, Zhang HT, Yang YZ, Mao JM, Liu DF, Zhao LM, Liang H, Jiang H. Identification and characterization of circular RNAs in the testicular tissue of patients with non-obstructive azoospermia. Asian J Androl 2022; 24:660-665. [PMID: 35229760 PMCID: PMC9809480 DOI: 10.4103/aja2021131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Circular RNAs (circRNAs) are highly conserved and ubiquitously expressed noncoding RNAs that participate in multiple reproduction-related diseases. However, the expression pattern and potential functions of circRNAs in the testes of patients with non-obstructive azoospermia (NOA) remain elusive. In this study, according to a circRNA array, a total of 37 881 circRNAs were identified that were differentially expressed in the testes of NOA patients compared with normal controls, including 19 874 upregulated circRNAs and 18 007 downregulated circRNAs. Using quantitative real-time polymerase chain reaction (qRT-PCR) analysis, we confirmed that the change tendency of some specific circRNAs, including hsa_circ_0137890, hsa_circ_0136298, and hsa_circ_0007273, was consistent with the microarray data in another larger sample. The structures and characteristics of these circRNAs were confirmed by Sanger sequencing, and fluorescence in situ hybridization revealed that these circRNAs were primarily expressed in the cytoplasm. Bioinformatics analysis was used to construct the competing endogenous RNA (ceRNA) network, and numerous miRNAs that could be paired with circRNAs validated in this study were reported to be vital for spermatogenesis regulation. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses indicated that genes involved in axoneme assembly, microtubule-based processes, and cell proliferation were significantly enriched. Our data suggest that there are aberrantly expressed circRNA profiles in patients with NOA and that these circRNAs may help identify key diagnostic and therapeutic molecular biomarkers for NOA patients.
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Affiliation(s)
- Zhe Zhang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China,Department of Andrology, Peking University Third Hospital, Beijing 100191, China,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - Han Wu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China,Department of Andrology, Peking University Third Hospital, Beijing 100191, China,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - Lin Zheng
- Department of Pathology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - Hai-Tao Zhang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China,Department of Andrology, Peking University Third Hospital, Beijing 100191, China,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - Yu-Zhuo Yang
- Department of Andrology, Peking University Third Hospital, Beijing 100191, China,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - Jia-Ming Mao
- Department of Andrology, Peking University Third Hospital, Beijing 100191, China,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - De-Feng Liu
- Department of Andrology, Peking University Third Hospital, Beijing 100191, China,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - Lian-Ming Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China,Department of Andrology, Peking University Third Hospital, Beijing 100191, China,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - Hui Liang
- Department of Pathology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China,
Correspondence: Dr. H Jiang () or Dr. H Liang ()
| | - Hui Jiang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China,Department of Andrology, Peking University Third Hospital, Beijing 100191, China,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China,
Correspondence: Dr. H Jiang () or Dr. H Liang ()
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10
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Li N, Hou R, Zhao LM, Gu G, Hou SY. [Expression of melanoma-associated antigen-C2 in breast cancers and mechanism]. Zhonghua Zhong Liu Za Zhi 2021; 43:821-826. [PMID: 34407585 DOI: 10.3760/cma.j.cn112152-20200116-00043] [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 expression pattern, mechanism and clinical significance of melanoma-associated antigen-C2 (MAGE-C2) in tumor-free breast specimens, breast benign disease specimens and breast cancer specimens. Methods: Reverse transcription-polymerase chain reaction (RT-PCR) and immunohistochemistry were used to investigate the expressions of MAGE-C2 in 60 tumor-free breast specimens, 60 breast benign disease specimens and 60 breast cancer specimens. The correlation of MAGE-C2 expression with clinicopathological parameters and prognosis of breast cancer patients were analyzed. The expression of MAGE-C2 was also detected by RT-PCR in breast cancer cell MCF-7 and MDA-MB-231 treated with DNA methylase inhibitor 5-aza-2'-deoxycytidine (5-aza-CdR) and histone deacetylase inhibitor trichostatin A (TSA). Results: The positive expression rates of MAGE-C2 mRNA and protein were 61.7% (37/60) and 58.3% (35/60) in breast cancer specimens, respectively, while negative expressed in breast and begin disease specimens. MAGE-C2 protein expression was associated with tumor grade, histological type and blood vessel invasion of breast cancer patients (P<0.05). The incidence of recurrence-free survival of patients with positive MAGE-C2 expression were lower than that of patients with negative MAGE-C2 expression (P<0.05). Multivariate Cox regression analysis showed that the clinical stage (P<0.01), lymph node metastasis (P<0.05) and MAGE-C2 expression (P<0.05) were the independent prognostic factors of breast cancer patients. The MAGE-C2 mRNA was not observed in the control and TSA treated breast cancer cells while upregulated in the 5-aza-CdR treated cells. Besides, 5-aza-CdR combined with TSA further enhanced MAGE-C2 mRNA level in breast cancer cells (P<0.05). Conclusions: MAGE-C2 is one of the tumor-specific antigen and its expression is related with the poor prognosis of breast cancer patients. DNA methylation and histone acetylation may be an important regulation mechanism of MAGE-C2 gene expression.
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Affiliation(s)
- N Li
- Department of Oncology, the Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
| | - R Hou
- Department of Oncology, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050019, China
| | - L M Zhao
- Department of Research Center, the Fourth Hospital of Hebei Medical University, Shijiazhuang 050019, China
| | - G Gu
- Department of Rheumatology and Immunology, the Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
| | - S Y Hou
- Department of Rheumatology and Immunology, the Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
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11
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Zhai YM, Jiang XW, Zhang TH, Chang L, Zhao LM, Yang L, Weng W, Liu LG. [Quantitative analysis of myelofibrosis and its prognostic significance in patients with myelodysplastic syndrome]. Zhonghua Yi Xue Za Zhi 2021; 101:2460-2464. [PMID: 34399560 DOI: 10.3760/cma.j.cn112137-20201124-03183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To quantitatively analyze the reticulin fiber intensity density (RFD) in patients with myelodysplastic syndrome (MDS) by using the computer-aided grid point method, and preliminarily explore its correlation with the prognosis of MDS patients. Methods: Bone marrow (BM) slices from 32 primary MDS patients treated in Tongren Hospital Shanghai Jiao Tong University School of Medicine from February 2017 to December 2019 were observed. Images were taken by the optical microscope imaging system after the Gomori staining. The computer grid marking software was developed according to the principle of the mesh micrometer to assess RFD, meanwhile, the artificial semi-quantitative were used to assess the fibrosis of bone marrow. The co-relation between the above two methods was evaluated, and the relationship between RFD and prognosis of MDS patients were further investigated with Cox regression analysis. Results: Of the patients, there were 17 males and 15 females with a median age of 69 years (32-91 years). The RFD quantitatively analyzed by the computer-based method was positively correlated with the myelofibrosis grade by the artificial semi-quantitative analysis (r=0.497, P=0.004). The RFD in patients diagnosed with MDS complicated with excess blasts (MDS-EB) was significantly higher than that in the non-MDS-EB group((9.55%±0.75%) vs (1.71%±0.23%), P<0.001). Cox regression model analysis showed that the RFD of MDS patients had better prognostic value when compared with the artificial semi-quantitative analysis, which was also a poor prognostic factor (RR=1.337, 95%CI: 1.085-1.648, P=0.006). The overall survival (OS) of patients with RFD>5.54% was significantly shorter than that with RFD≤5.54% (P=0.001). The OS of MDS-EB patients with RFD>9.81% was significantly shorter than that in patients with RFD≤9.81% (P=0.003). Conclusion: Abnormal proliferative fibrosis of bone marrow is a potential high-risk factor for poor prognosis of MDS patients.
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Affiliation(s)
- Y M Zhai
- Department of Hematology, Tongren Hospital Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - X W Jiang
- Department of Hematology, Tongren Hospital Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - T H Zhang
- Department of Hematology, Tongren Hospital Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - L Chang
- Department of Hematology, Tongren Hospital Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - L M Zhao
- Department of Hematology, Tongren Hospital Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - L Yang
- Department of Hematology, Tongren Hospital Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - W Weng
- Department of Hematology, Tongren Hospital Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
| | - L G Liu
- Department of Hematology, Tongren Hospital Shanghai Jiao Tong University School of Medicine, Shanghai 200336, China
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12
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Hu X, Ma J, Zhao LM, Guo J, Tang DY. Collision between soliton and polarization domain walls in fiber lasers. Opt Express 2021; 29:12590-12598. [PMID: 33985013 DOI: 10.1364/oe.423030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 04/01/2021] [Indexed: 06/12/2023]
Abstract
We report on the experimental observation of coexistence of solitons and polarization domains, as well as features of soliton collision with polarization domain walls (or kink solitons) in a single mode fiber laser. Depending on the sign of cavity dispersion, either bright or dark solitons have been formed in our fiber laser. Under suitable laser operation conditions, they could even coexist with polarization domains and collide with the domain walls. We show experimental evidence of both the elastic and inelastic soliton collisions with the domain wall solitons. Some interesting features of soliton interaction with polarization domains in a fiber laser are also firstly revealed.
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13
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Hu X, Guo J, Zhao LM, Ma J, Tang DY. Dark-bright soliton trapping in a fiber laser. Opt Lett 2021; 46:1105-1108. [PMID: 33649668 DOI: 10.1364/ol.420012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 01/29/2021] [Indexed: 06/12/2023]
Abstract
We report, to the best of our knowledge, the first experimental observation of coexistence of scalar dark and bright solitons in a fiber laser operating in the near zero-dispersion regime. We show that because of the incoherent cross coupling, under suitable conditions a bright soliton formed in the net anomalous cavity dispersion regime could bind with a dark soliton formed in the net normal cavity dispersion regime in a fiber laser. The properties of the dark and bright solitons, as well as their bound states, are experimentally investigated. The numerical simulations based on the coupled Ginzburg-Landau equations have reproduced the experimental results well.
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14
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Zhang HL, Zhao LM, Mao JM, Liu DF, Tang WH, Lin HC, Zhang L, Lian Y, Hong K, Jiang H. Sperm retrieval rates and clinical outcomes for patients with different causes of azoospermia who undergo microdissection testicular sperm extraction-intracytoplasmic sperm injection. Asian J Androl 2021; 23:59-63. [PMID: 32341210 PMCID: PMC7831829 DOI: 10.4103/aja.aja_12_20] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
The aim of our study was to compare the sperm retrieval rates (SRRs) and clinical outcomes of patients with different causes of azoospermia who underwent microdissection testicular sperm extraction-intracytoplasmic sperm injection (micro-TESE-ICSI). We conducted a retrospective study at the Reproductive Medicine Center of Peking University Third Hospital in Beijing, China, from January 2014 to December 2017. This study examined 769 patients with nonobstructive azoospermia who underwent 347 cycles of micro-TESE-ICSI. Patients with azoospermia were classified into Group A (Klinefelter syndrome, n = 284, 125 cycles), Group B (azoospermia Y chromosome factor c [AZFc] microdeletion, n = 91, 64 cycles), Group C (cryptorchidism, n = 52, 39 cycles), Group D (previous mumps and bilateral orchitis, n = 23, 23 cycles), and Group E (idiopathic azoospermia, n = 319, 96 cycles). Clinical characteristics, SRR, embryonic development, and pregnancy outcomes of the patients were compared between all groups. Patients in Group D had the highest and most successful SRR. The average SRR for all patients was 46.0%. The rates of clinical pregnancy, implantation, and live birth in Group D were 78.3%, 65.0%, and 74.0%, respectively, which were higher than those in all other groups (P < 0.05). Group B patients had the lowest clinical pregnancy, implantation, and live birth rates of all groups (P < 0.05). No differences were found in the miscarriage rate or birth defects among the groups (P > 0.05). Patients with orchitis had the highest SRR and best clinical outcomes. Although AZFc microdeletion patients had a higher SRR, their clinical outcomes were worse.
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Affiliation(s)
- Hong-Liang Zhang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China.,Department of Human Sperm Bank, Peking University Third Hospital, Beijing 100191, China
| | - Lian-Ming Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - Jia-Ming Mao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - De-Feng Liu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - Wen-Hao Tang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China.,Department of Human Sperm Bank, Peking University Third Hospital, Beijing 100191, China
| | - Hao-Cheng Lin
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - Li Zhang
- Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - Ying Lian
- Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - Kai Hong
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - Hui Jiang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China.,Department of Human Sperm Bank, Peking University Third Hospital, Beijing 100191, China
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15
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Zhang HL, Mao JM, Liu DF, Zhao LM, Tang WH, Hong K, Zhang L, Lian Y, Lin HC, Jiang H. Clinical outcomes of microdissection testicular sperm extraction-intracytoplasmic sperm injection with fresh or cryopreserved sperm in patients with nonobstructive azoospermia. Asian J Androl 2021; 23:211-214. [PMID: 32719193 PMCID: PMC7991819 DOI: 10.4103/aja.aja_38_20] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
We performed this study to evaluate the clinical outcomes of microdissection testicular sperm extraction-intracytoplasmic sperm injection (micro-TESE-ICSI) treatment that used fresh or cryopreserved sperm in patients with nonobstructive azoospermia (NOA). A total of 338 NOA patients with 344 consecutive cycles received treatment in the reproductive medicine center of Peking University Third Hospital in Beijing, China, from January 2014 to December 2017. Fresh oocytes and fresh sperm were used in 222 patients with 234 cycles (Group A). Fresh oocytes and cryopreserved sperm were used in 116 patients with 110 cycles (Group B). We compared patient characteristics, embryonic development, and pregnancy outcomes between Groups A and B. There was no statistical difference in the patient characteristics, and no differences were observed with fertilization or quality embryo rates between Groups A and B. The rates of clinical pregnancy and live birth were both higher for Group A than those for Group B (both P < 0.05). In conclusion, fresh testicular sperm appears to produce better ICSI outcomes than cryopreserved testicular sperm in patients with NOA.
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Affiliation(s)
- Hong-Liang Zhang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Human Sperm Bank, Peking University Third Hospital, Beijing 100191, China
| | - Jia-Ming Mao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - De-Feng Liu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - Lian-Ming Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - Wen-Hao Tang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Human Sperm Bank, Peking University Third Hospital, Beijing 100191, China
| | - Kai Hong
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - Li Zhang
- Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - Ying Lian
- Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - Hao-Cheng Lin
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - Hui Jiang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Human Sperm Bank, Peking University Third Hospital, Beijing 100191, China
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16
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Hu X, Guo J, Zhao LM, Ma J, Tang DY. Coherently coupled vector black solitons in a quasi-isotropic cavity fiber laser. Opt Lett 2020; 45:6563-6566. [PMID: 33258862 DOI: 10.1364/ol.410830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 10/31/2020] [Indexed: 06/12/2023]
Abstract
We report the first experimental observation of coherently coupled black-black solitons in a quasi-isotropic cavity fiber laser with normal cavity dispersion. The properties of the vector solitons accord well with the theoretical predictions based on the coherently coupled nonlinear Schrödinger equations. Numerical studies and experimental results clearly confirmed the existence of the highly robust vector black solitons in the fiber laser system.
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17
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Wang YF, Ding BJ, Li MH, Baek SG, Wallace GM, Liu L, Zhao LM, Wang M, Wu ZG, Liu FK, Shan JF, Zhang XJ, Li YC, Wu CB. Diagnostic development for parallel wave-number measurement of lower hybrid waves in EAST. Rev Sci Instrum 2020; 91:073502. [PMID: 32752822 DOI: 10.1063/1.5144673] [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] [Received: 01/09/2020] [Accepted: 06/22/2020] [Indexed: 06/11/2023]
Abstract
An eight-channel magnetic probe diagnostic system has been designed and installed adjacent to the 4.6 GHz lower hybrid (LH) grill antenna in the low-field side of the Experimental Advanced Superconducting Tokamak (EAST) in order to study the n∥ evolution of LH waves in the first pass from the launcher to the core plasma. The magnetic probes are separated by 6.6 mm, which allows measurement of the dominant parallel refractive index n∥ up to n∥ = 5 for 4.6 GHz LH waves. The magnetic probes are designed to be sensitive to the magnetic field component perpendicular to the background magnetic field with a slit on the casing that encloses the probe. The intermediate frequency stage, which consists of two mixing stages, down-coverts the frequency of the measured wave signals at 4.6 GHz to 20 MHz. A bench test demonstrates the phase stability of the magnetic probe diagnostic system. By evaluating the phase variation of the measured signals along the background magnetic field, the dominant n∥ of the LH wave in the scrape-off layer has been deduced during the 2019 experimental campaign. In the low density plasma, the measured dominant n∥ of the LH waves is about 2.1, corresponding to the main peak 2.04 of the launched n∥ spectrum. n∥ deduced by the least-squares linear fit method remains near this value in the low density plasma with a high spatial correlation magnitude of 0.9. With an eight-channel probe system, a wave-number spectrum has also been deduced, which has a peak near to the measured dominant n∥.
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Affiliation(s)
- Y F Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - B J Ding
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - M H Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - S G Baek
- MIT Plasma Science and Fusion Center, Cambridge, Massachusetts 02139, USA
| | - G M Wallace
- MIT Plasma Science and Fusion Center, Cambridge, Massachusetts 02139, USA
| | - L Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - L M Zhao
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - M Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Z G Wu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - F K Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - J F Shan
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - X J Zhang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Y C Li
- College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - C B Wu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
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18
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Jiang H, Zhao LM, Lin HC, Yan S, Liu JH, Zhu ZH, Luo JD, Dai YT, Li FB, Lou Y, Zhang ZC. Evaluation of the long-term safety and effectiveness of tadalafil once daily in Chinese men with erectile dysfunction: interim results of a multicenter, randomized, open-label trial. Asian J Androl 2019; 20:587-592. [PMID: 30004039 PMCID: PMC6219303 DOI: 10.4103/aja.aja_47_18] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Once-daily tadalafil administration has been well established; however, studies about tadalafil once-daily treatment in the Chinese population are lacking. In this phase 4, postmarketing study, we ascertained the long-term safety and effectiveness of tadalafil 2.5 mg and 5.0 mg once daily in Chinese men with erectile dysfunction (n = 635). The primary endpoint of the study was safety at 12 months as assessed by the proportion of patients experiencing at least one treatment-emergent adverse event (serious or nonserious). The secondary endpoints included safety and effectiveness, measured by the International Index of Erectile Function-Erectile Function (IIEF-EF) domain scores. Similar adverse events to the known safety profile of tadalafil, such as nasopharyngitis, upper respiratory tract infection, headache, and dizziness, were detected. No new cardiovascular safety concerns were observed. After 3 months of treatment, significant increases in IIEF-EF domain scores were detected for both 2.5-mg (least squares [LS] mean change: 6.3; 95% confidence interval [CI]: 5.4–7.1; P < 0.001) and 5.0-mg (LS mean change: 7.4; 95% CI: 6.8–7.9; P < 0.001) tadalafil doses, and significance was maintained up to 12 months. In addition, approximately 40% of patients regained normal erectile function (IIEF-EF ≥26) following 1 year of tadalafil once-daily treatment. The findings in this study provide evidence for the extended effectiveness and tolerability of tadalafil, demonstrating no new safety concerns, in a Chinese population and make once-daily tadalafil administration a viable option for improving sexual performance and satisfaction in Chinese men with erectile dysfunction.
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Affiliation(s)
- Hui Jiang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Lian-Ming Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Hao-Cheng Lin
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Su Yan
- Department of Urology, Peking Union Medical College Hospital, Beijing 100730, China
| | - Ji-Hong Liu
- Department of Urology, Tongji Hospital Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhao-Hui Zhu
- Department of Urology, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jin-Dan Luo
- Department of Urology, The First Affiliated Hospital, Zhejiang University, Hangzhou 310003, China
| | - Yu-Tian Dai
- Department of Andrology, Nanjing Drum Tower Hospital, Nanjing 210008, China
| | - Fu-Biao Li
- Department of Andrology, The First Hospital of Jilin University, Changchun 130021, China
| | - Ying Lou
- Lilly Suzhou Pharmaceutical Co., Ltd Shanghai Branch, Shanghai 200041, China
| | - Zhi-Chao Zhang
- Peking University First Hospital, Institute of Urology, Peking University, Beijing 100034, China
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19
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Zou JS, Wang YW, Han RR, Yuan KX, Zhao LM. [Acoustic response characteristics of posterior intralaminar nucleus of auditory thalamus in mice]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 54:670-675. [PMID: 31550758 DOI: 10.3760/cma.j.issn.1673-0860.2019.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the response characteristics of the posterior intralaminar nucleus (PIN) of auditory thalamus in VGluT2-Cre transgenic adult mice when exposed to white noise and 10K pure tone stimulation. Methods: All adult male Vglut2-Cre mice (8-12 weeks) were used in this study between Oct, 2017 and Oct, 2018. Using the calcium signal fiber photometry method, optic fiber was employed to locate on PIN by injecting AAV-hSyn-DIO-GCaMP6m virus, and thereafter, the activity of the target cluster neurons during different acoustic stimuli was recorded. Matlab was used for data processing and statistical analysis. Results: (1)In both white noise and 10 kHz pure tone as a continuous three-second stimulation, the peak amplitude of calcium signal activity generated in PIN by white noise was superior to that of pure tone, the statistic result showed significantly difference (n=6, t=2.404, P=0.037 1) . (2)In addition, when white noise and 10K pure tone played as consecutive 3 or 5 pips within three-second stimulation, the stimulus-following ability in a consecutive 3 pulses play within 3 seconds was far better than a consecutive 5 pips play within 3 seconds (in both white noise and 10 kHz pure tone), yet consecutive 3 pips play showed greater signal attenuation speed than that in consecutive 5 pips play, the statistic result showed significantly difference (n=6, t=2.748 P=0.033 4) .(3)Regardless of the intra-group comparisons between white noise and 10 kHz pure tone stimulation, PIN showed better signal response in a consecutive 3 pips play than consecutive 5 pips play or a continuous three-second stimulation. When came to the statistical analysis, the acoustic response degree of a continuous three-second stimulation was an intermediate between two others, both consecutive 3 or 5 pips play showed significantly difference. Conclusions: The results suggest that under the same acoustic intensity, VGluT2-Cre transgenic adult mice's PIN shows greater signal response in white noise than pure tone. PIN shows greater signal attenuation to repetition play of 10 kHz pure tone, which implies PIN shows stronger adaptation to 10 kHz pure tone than to white noise. Lastly, PIN is more responsive to a complex sound information (white noise) than to simple sound information (pure tone).
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Affiliation(s)
- J S Zou
- Clinical Medical College, Weifang Medical University, Weifang 261053, China
| | - Y W Wang
- Department of Biomedical Engineering, Tsinghua University, Beijing 100084, China
| | - R R Han
- Department of Otorhinolaryngology, Weifang People's Hospital, Weifang 261000, China
| | - K X Yuan
- Department of Biomedical Engineering, Tsinghua University, Beijing 100084, China
| | - L M Zhao
- Department of Otorhinolaryngology, Affiliated Hospital of Weifang Medical University, Weifang 261031, China
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20
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Wu H, Tang WH, Zhao LM, Liu DF, Yang YZ, Zhang HT, Zhang Z, Hong K, Lin HC, Jiang H. Nanotechnology-assisted adipose-derived stem cell (ADSC) therapy for erectile dysfunction of cavernous nerve injury: In vivo cell tracking, optimized injection dosage, and functional evaluation. Asian J Androl 2019; 20:442-447. [PMID: 30004040 PMCID: PMC6116694 DOI: 10.4103/aja.aja_48_18] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Stem cell therapy is a potentially promising option for erectile dysfunction; however, its risk of tumorigenicity is a clinical hurdle and the risk is positively related to the number of injected cells. Our previous study showed that nanotechnology improved adipose-derived stem cell (ADSC) therapy for erectile dysfunction of cavernous nerve injury (CNI) by attracting cells in the corpus cavernosum. These results indicated the possibility of using a reduced dosage of ADSCs for intracavernous injection. In this exploratory study, we used lower dosage (2 × 105 cells) of ADSCs for intracavernous injection (ICI) and the nanotechnology approach. Intracavernous pressure and mean arterial pressure were measured at day 28 to assess erectile function. The low-dose ADSC therapy group showed favorable treatment effects, and nanotechnology further improved these effects. In vivo imaging of ICI cells revealed that the fluorescein signals of NanoShuttle-bound ADSCs (NanoADSCs) were much stronger than those of ADSCs at days 0, 1, and 3. Both immunofluorescence and Western blot analysis showed a significant increase in smooth muscle, endothelium, and nerve tissue in the ADSC group compared to that in the CNI group; further improvement was achieved with assisted nanotechnology. These findings demonstrate that nanotechnology can be used to further improve the effect of small dosage of ADSCs to improve erectile function. Abundant NanoADSCs remain in the corpus cavernosum in vivo for at least 3 days. The mechanism of erectile function improvement may be related to the regeneration of the smooth muscle, endothelium, and nerve tissues.
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Affiliation(s)
- Han Wu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - Wen-Hao Tang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China.,Department of Human Sperm Bank, Peking University Third Hospital, Beijing 100191, China
| | - Lian-Ming Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - De-Feng Liu
- Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - Yu-Zhuo Yang
- Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China.,Department of Human Sperm Bank, Peking University Third Hospital, Beijing 100191, China
| | - Hai-Tao Zhang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - Zhe Zhang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - Kai Hong
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - Hao-Cheng Lin
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China
| | - Hui Jiang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.,Department of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.,Department of Andrology, Peking University Third Hospital, Beijing 100191, China.,Department of Human Sperm Bank, Peking University Third Hospital, Beijing 100191, China
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21
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Zhao LM, Jiang H, Hong K, Lin HC, Tang WH, Liu DF, Mao JM, Zhang Z, Lin SL, Ma LL. [Analysis of intratesticular condition in micro-dissection testicular sperm extraction era]. Beijing Da Xue Xue Bao Yi Xue Ban 2019; 51:632-635. [PMID: 31420613 DOI: 10.19723/j.issn.1671-167x.2019.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To summarizes the intratesticular condition of azoospermia patients, to understand azoospermia more intuitively, and improve the ability of clinical doctors to predict the success rate of microsperm extraction in azoospermia patients. METHODS Azoospermia patients (excluding Klinefelter's syndrome) who underwent a micro-TESE during January 2014 and January 2018 in a single center were enrolled. The types of seminiferous tubules were summarized, and the clinical characteristics of different types of seminiferous tubules compared with the success rates of sperm extraction. In this study, 472 cases of non-obstructive azoospermia (excluding Klinefelter's syndrome) were analyzed by SPSS 21.0 software package. Relevant data were expressed by median(minimum,maximum).t-test was used to compare the difference of success rate of sperm extraction between each group and the group with the lowest rate (a type). RESULTS The 472 patients with non-obstructive azoospermia underwent micro-TESE. The mean age of the patients was 31 (23, 46) years, the mean testicular size was 10 (1, 20) mL, the mean FSH was 15.4 (1.21, 68.4) IU/L, the mean T was 8.34 (0.69, 30.2) nmol/L, and totally 202 patients achieved success in micro-TESE (42.7%, 202/472). According to the seminiferous tubules seen during the operation, they were divided into the following six types: Class a, seminiferous tubules developed well and uniformly; Class b, seminiferous tubules developed well, occasionally slightly thick; Class c, seminiferous tubules were generally thin; Class d, seminiferous tubules basically atrophied, occasionally well-developed seminiferous tubules; Class e, all seminiferous tubules atrophied; Class f, seminiferous tubules were infiltrated by yellow substances. The success rate of micro-TESE varied greatly among different types of the patients. A total of 78 patients with type a were 29 (24, 40) years old, FSH 11.1 (1.21, 15.8) IU/L, T 10.2 (3.29, 26.5) nmol/L), and testicular size 12 (12, 20) mL. The successful rate of sperm extraction was 6.41%; 82 patients with type b were 31 (23, 42) years old, FSH 13.8 (3.23, 19.6) IU/L, T 9.44 (3.58, 30.2) nmol/L), and testicular size 12(8,15) mL. The successful rate of sperm extraction was 74.39%; There were 162 patients in group c, aged 31 (25, 40), FSH 19.6 (9.28, 26.6) IU/L, T 8.75 (5.66, 18.6) nmol/L, and testicular size 8 (5, 12) mL. The successful rate of sperm extraction was 45.06%. There were 36 patients in group d, aged 25 (23,38) years and FSH 28.5 (19.3, 45.6) IU/L, T 6.52 (2.12, 9.83) nmol/L, and testicular size 5 (3, 8) mL, and the success rate of sperm extraction was 94.44%. 26 patients with type e were 28(23, 46) years old, FSH 31.3 (18.5, 68.4) IU/L, T 6.72 (0.69, 18.2) nmol/L, and testicular size 5 (1, 8) mL. The success rate of sperm extraction was 45.38%. 88 patients with type f were 29 (24, 38) years old, FSH 18.5 (5.23, 31.6) IU / L, T 8.32 (3.58, 16.5) nmol/L, and testicular size 12 (6, 20) mL. The success rate of sperm extraction was 28.41%. CONCLUSION The success rate of micro-TESE in different types of seminiferous tubules in testis can be helpful to the judgement of the surgeon during the operation.
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Affiliation(s)
- L M Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - H Jiang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - K Hong
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - H C Lin
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - W H Tang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - D F Liu
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - J M Mao
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - Z Zhang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - S L Lin
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - L L Ma
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
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22
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Liu DF, Zhao LM, Hong K, Mao JM, Yang YZ, Zhang Z, Jiang H. Fertility achieved through in vitro fertilization in a male patient with 48,XXYY syndrome. Asian J Androl 2019; 20:208-209. [PMID: 28980534 PMCID: PMC5858110 DOI: 10.4103/aja.aja_44_17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- De-Feng Liu
- Reproductive Medical Center, Peking University Third Hospital, Beijing 100191, China
| | - Lian-Ming Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Kai Hong
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Jia-Ming Mao
- Reproductive Medical Center, Peking University Third Hospital, Beijing 100191, China
| | - Yu-Zhuo Yang
- Reproductive Medical Center, Peking University Third Hospital, Beijing 100191, China
| | - Zhe Zhang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Hui Jiang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
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23
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Ma J, Shao GD, Song YF, Zhao LM, Xiang YJ, Shen DY, Richardson M, Tang DY. Observation of dark-bright vector solitons in fiber lasers. Opt Lett 2019; 44:2185-2188. [PMID: 31042179 DOI: 10.1364/ol.44.002185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 03/25/2019] [Indexed: 06/09/2023]
Abstract
We report the experimental observation of coherently coupled dark-bright vector solitons in single mode fiber lasers with either normal or anomalous cavity dispersion. The properties of these vector solitons were found to agree well with theoretical predictions based on the coherently coupled nonlinear Schrödinger equations. The experimental results clearly confirmed the existence of a fundamentally new form of optical solitons in coupled nonlinear systems.
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24
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Mao JM, Liu DF, Zhao LM, Hong K, Zhang L, Ma LL, Jiang H, Qiao J. [Effect of testicular puncture biopsy on the success rate of microdissection testicular sperm extraction for idiopathic non-obstructive azoospermia]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:613-616. [PMID: 30122758] [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: 06/08/2023]
Abstract
OBJECTIVE To explore the predictive effect of testicular puncture biopsy and the biopsy results on the success rate of microdissection testicular sperm extraction (micro-TESE) in patients with idiopathic non-obstructive azoospermia. METHODS We retrospectively evaluated the micro-TESE performance in patients with idiopathic non-obstructive azoospermia (NOA) referred to the Reproductive Medicine Center of Peking University Third Hospital between January 2012 and August 2017. We discussed whether to take the testicular biopsy and testicular biopsy results, including the intraoperative microscopic examination and postoperative pathology findings, could predict the success rate of the late micro-TESE. RESULTS There were 237 patients who were diagnosed as idiopathic NOA and received micro-TESE involved in the study and the total sperm retrieve rate was 25.7%. In 103 patients without testicular biopsy and 134 patients with preoperative testicular biopsy, the sperm retrieve rate was 26.2% and 25.4%, respectively. And there was no significant difference between the two groups. The testicular volume and serum follicle stimulating hormone levels of the two groups were (4.3±1.4) mL vs.(8.5±2.4) mL and (36.1±5.2) IU/L vs.(26.1±3.5) IU/L, respectively. Compared to the patients with preoperative testicular biopsy, the group of patients without testicular biopsy had a much smaller test volume and higher serum follicle stimulating hormone and the difference between the two groups was statistically significant. For the patients who were found with a small amount of sperm in both intraoperative microscopic examination and postoperative pathological examination, the sperm retrieve rate was 100% (7/7). And for the patients who were only found with sperm in intraoperative microscopic examination or postoperative pathology examination, the sperm retrieve rate (SRR) was 47.2% (17/36). For the patients who could be not found with sperm in both intraoperative microscopic examination and postoperative pathological examination, the SRR was only 11% (10/91). The difference between the groups was statistically significant. CONCLUSION Idiopathic non-obstructive azoospermia patients with smaller testicular volume still have a chance to be found with sperm by micro-TESE. The testicular biopsy results, including intraoperative microscopic examination and postoperative pathological findings, have predictive effect on the SRR for late micro-TESE. The patient who could not be found with sperm in both intraoperative microscopic examination and postoperative pathological examination have a small chance of success in micro-TESE.
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Affiliation(s)
- J M Mao
- Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - D F Liu
- Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - L M Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - K Hong
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - L Zhang
- Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
| | - L L Ma
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - H Jiang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - J Qiao
- Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China
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25
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Tang WH, Zhou SJ, Song SD, He HY, Wu H, Zhang Z, Yang YZ, Zhang HL, Mao JM, Liu DF, Zhao LM, Lin HC, Hong K, Ma LL, Zhuang XJ, Jiang H. A clinical trial on the consistency of bilateral testicular tissue histopathology and Johnsen score: single side or bilateral side biopsy? Oncotarget 2018; 9:23848-23859. [PMID: 29844857 PMCID: PMC5963628 DOI: 10.18632/oncotarget.24748] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 03/01/2018] [Indexed: 11/25/2022] Open
Abstract
To evaluate and compare left and right testicular tissue histopathology and Johnsen score, and to investigate the necessity for bilateral testicular biopsy. We recruited180 patients with non-obstructiveazoospermia (NOA) on testicular biopsy who had undergonetesticular sperm aspiration (TESA). Pathological sections of testicular tissue were diagnosed by specially-assigned doctors, who evaluated pathological findings, determined the Johnsen score and confirmed for the presence or absence of sperm. Sperm positive rates for left and right testicular histopathology were 55.0% and 51.7% respectively, and the proportion of Johnsen scores≥8 for left and right testes were 53.3% and 50.0%, respectively. Cohen kappa values revealed that the identification of sperm in bilateral testicular samples was not consistent and was related to random effects; Optimized cut-off value for bilateral testicular volume was 11ml (Johnsen score ≥8), and optimized cut-off values of E2 on left and right testes were 144.5pmol/L and 133.5 pmol/L (Johnsen score≤7). However, age, serum prolactin (PRL), follicle stimulating hormone (FSH), luteinizing hormone (LH) and total testosterone (TT) levels were not accurate predictors for the existence of testicular sperm. There was nostatistical significance between left and right testicular histopathology in terms of sperm positive rates or Johnsen score; the Johnsen score were caused entirely by random effects and a score from one side could not represent the other side. Therefore, we recommend that both testes need to undergo surgery when NOA patients undergo testicular biopsy or sperm retrieval.
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Affiliation(s)
- Wen-Hao Tang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Shan-Jie Zhou
- Reproductive Medicine Centre, Peking University International Hospital, Beijing 102206, China
| | - Shi-De Song
- Department of Urology, Rizhao People's Hospital, Rizhao, Shandong 276826, China
| | - Hui-Ying He
- Department of Pathology, Peking University, Health Science Center, Beijing 100191, China
| | - Han Wu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Zhe Zhang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Yu-Zhuo Yang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Hong-Liang Zhang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - Jia-Ming Mao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - De-Feng Liu
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - Lian-Ming Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Hao-Cheng Lin
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Kai Hong
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Lu-Lin Ma
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Xin-Jie Zhuang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - Hui Jiang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
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Zhu SN, Wu ZC, Fu SN, Zhao LM. Manipulation of group-velocity-locked vector dissipative solitons and properties of the generated high-order vector soliton structure. Appl Opt 2018; 57:2064-2068. [PMID: 29603994 DOI: 10.1364/ao.57.002064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 02/16/2018] [Indexed: 06/08/2023]
Abstract
Details of various composites of the projections originated from a fundamental group-velocity-locked vector dissipative soliton (GVLVDS) are both experimentally and numerically explored. By combining the projections from the orthogonal polarization components of the GVLVDS, a high-order vector soliton structure with a double-humped pulse profile along one polarization and a single-humped pulse profile along the orthogonal polarization can be observed. Moreover, by de-chirping the composite double-humped pulse, the time separation between the two humps is reduced from 15.36 ps to 1.28 ps, indicating that the frequency chirp of the GVLVDS contributes significantly to the shaping of the double-humped pulse profile.
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27
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Tang WH, Zhuang XJ, Song SD, Wu H, Zhang Z, Yang YZ, Zhang HL, Mao JM, Liu DF, Zhao LM, Lin HC, Hong K, Ma LL, Qiao J, Qin W, Tang Y, Jiang H. Ran-binding protein M is associated with human spermatogenesis and oogenesis. Mol Med Rep 2017; 17:2257-2262. [PMID: 29207172 PMCID: PMC5783472 DOI: 10.3892/mmr.2017.8147] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Accepted: 10/06/2017] [Indexed: 12/02/2022] Open
Abstract
The aim of the present study was to explore the underlying mechanism and diagnostic potential of Ran-binding protein M (RanBPM) in human spermatogenesis and oogenesis. RanBPM expression in human testis and ovaries was analysed using polymerase chain reaction (PCR) and western blotting, and immunofluorescence was performed on testis and ovary tissue sections during different developmental stages of spermatogenesis and oogenesis using RanBPM antibodies. Interactions with a variety of functional proteins were also investigated. RanBPM mRNA and protein expression levels were determined by PCR and western blotting in the tissue sections. Results revealed that the mRNA expression levels were highest in the testis followed by the ovary. The RanBPM protein was predominantly localized in the nucleus of germ cells, and the expression levels were highest in pachytene spermatocytes and cells surrounding spermatids in testis tissue. In ovary cells, RanBPM was localized in the nucleus and cytoplasm. In conclusion, the results suggested that RanBPM may have multiple roles in the regulation of germ cell proliferation during human spermatogenesis and oogenesis. This research may provide a novel insight into the underlying molecular mechanism of RanBPM and may have implications for the clinical diagnosis and treatment of human infertility.
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Affiliation(s)
- Wen-Hao Tang
- 1Department of Urology, The Third Hospital of Peking University, Beijing 100191, P.R. China
| | - Xin-Jie Zhuang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Shi-De Song
- Department of Urology, Rizhao People's Hospital, Rizhao, Shandong 276500, P.R. China
| | - Han Wu
- 1Department of Urology, The Third Hospital of Peking University, Beijing 100191, P.R. China
| | - Zhe Zhang
- 1Department of Urology, The Third Hospital of Peking University, Beijing 100191, P.R. China
| | - Yu-Zhuo Yang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Hong-Liang Zhang
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Jia-Ming Mao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University Third Hospital, Beijing 100191, P.R. China
| | - De-Feng Liu
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Lian-Ming Zhao
- 1Department of Urology, The Third Hospital of Peking University, Beijing 100191, P.R. China
| | - Hao-Cheng Lin
- 1Department of Urology, The Third Hospital of Peking University, Beijing 100191, P.R. China
| | - Kai Hong
- 1Department of Urology, The Third Hospital of Peking University, Beijing 100191, P.R. China
| | - Lu-Lin Ma
- 1Department of Urology, The Third Hospital of Peking University, Beijing 100191, P.R. China
| | - Jie Qiao
- Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Key Laboratory of Assisted Reproduction, Ministry of Education, Peking University Third Hospital, Beijing 100191, P.R. China
| | - Weibing Qin
- Key Laboratory of Male Reproduction and Genetics, National Health and Family Planning Commission, Family Planning Research Institute of Guangdong Province, Guangzhou, Guangdong 510600, P.R. China
| | - Yunge Tang
- Key Laboratory of Male Reproduction and Genetics, National Health and Family Planning Commission, Family Planning Research Institute of Guangdong Province, Guangzhou, Guangdong 510600, P.R. China
| | - Hui Jiang
- 1Department of Urology, The Third Hospital of Peking University, Beijing 100191, P.R. China
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Mao JM, Zhao LM, Hong K, Tang WH, Liu DF, Lin HC, Wu H, Zhang HT, Zhang HL, Yang YZ, Wang YP, Lian Y, Jiang H, Ma LL, Qiao J. [Microdissection testicular sperm extraction for patients with nonmosaic Klinefelter syndrome: A report of 143 cases]. Zhonghua Nan Ke Xue 2017; 23:1075-1079. [PMID: 29738176] [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: 06/08/2023]
Abstract
OBJECTIVE To investigate the clinical application and outcomes of microdissection testicular sperm extraction (micro-TESE) in patients with nonmosaic Klinefelter syndrome (KS). METHODS A total of 143 nonmosaic KS patients underwent micro-TESE in the Center of Reproductive Medicine of Peking University Third Hospital between July 2012 and August 2016. We analyzed their clinical and follow-up data and evaluated the outcomes. RESULTS Spermatozoa were successfully retrieved from the testicular tissue in 44.76% (64/143) of the patients, 84.4% (54/64) by unilateral and 15.6% (10/64) by bilateral micro-TESE. Seventy-five of the KS patients were followed up in the years of 2014 and 2015. Of the 34 patients with successful sperm retrieval, 73.52% (25/34) achieved clinical pregnancy and 8 boys and 8 girls were already born in 14 of the 25 cases. CONCLUSIONS The micro-TESE is a useful method for sperm retrieval in nonmosaic KS patients, with high rates of sperm retrieval, clinical pregnancy, and birth of biological offspring.
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Affiliation(s)
- Jia-Ming Mao
- Center of Reproductive Medicine, Peking University Third Hospital, Beijing 100191, China
| | - Lian-Ming Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Kai Hong
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Wen-Hao Tang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - De-Feng Liu
- Center of Reproductive Medicine,Peking University Third Hospital, Beijing 100191, China
| | - Hao-Cheng Lin
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Han Wu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Hai-Tao Zhang
- Center of Reproductive Medicine, Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Hong-Liang Zhang
- Center of Reproductive Medicine, Peking University Third Hospital, Beijing 100191, China
| | - Yu-Zhuo Yang
- Center of Reproductive Medicine, Peking University Third Hospital, Beijing 100191, China
| | - Ya-Peng Wang
- Center of Reproductive Medicine, Peking University Third Hospital, Beijing 100191, China
| | - Ying Lian
- Center of Reproductive Medicine, Peking University Third Hospital, Beijing 100191, China
| | - Hui Jiang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Lu-Lin Ma
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - Jie Qiao
- Center of Reproductive Medicine, Peking University Third Hospital, Beijing 100191, China
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Zhang XY, Ma LJ, Guo YL, Gao S, Zhao LM, Li XS, Tang XY, Cheng DJ, Zhang LX, Chen ZC. [Effect of BCYRN1 on proliferation and migration of airway smooth muscle cells in rat model of asthma]. Zhonghua Yi Xue Za Zhi 2017; 96:3751-3756. [PMID: 27998434 DOI: 10.3760/cma.j.issn.0376-2491.2016.46.012] [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
Objective: To detect the effect of brain cytoplasmic RNA 1 (BCYRN1) on the proliferation and migration of airway smooth muscle cells (ASMCs) in rat model of asthma. Methods: Male SD rats were randomly divided into control group and asthma group (n=10 each). The ovalbumin (OVA) model was constructed in asthma group. Real time-qPCR was performed to detect the level of BCYRN1 in the ASMCs separated from the airway tissue of these rats. Then 2-(4-iodophenyl)-3-(4-nitrophenyl)-5-(2, 4-disulfophenyl)-2H-tetrazolium (WST-1) assay, roche real-time cell analyzer assay and Transwell cell migration assay were performed to detect the viability/proliferation and migration of ASMCs which were transfected with Ad-BCYRN1.Platelet-derived growth factor (PDGF)-BB was used to treat ASMCs to induce proliferation and migration, and the level of BCYRN1 was examined.The viability/proliferation and migration of ASMCs treated with PDGF-BB and transfected with si-BCYRN1 were detected. Inspiratory resistance and expiratory resistance were measured in rats with BCYRN1 knockdown.Briefly, rats were randomly divided into four groups: control (group A), sensitization + Ad-GFP (group B), sensitization + AdSM22α-siBCYRN1 (group C), control + Ad-SM22α-siBCYRN1 (group D) (n=10 each). The corresponding adenovirus vectors were sent to lung of group B, group C and group D through nasal spray. The OVA model was constructed in group B and group C. The rats in group A and group D were treated with saline.After 24 h of the last treatment with OVA or saline, rats of each group were given tracheal intubation, connected with breathing machine. Rats were injected with methacholine to measure the inspiratory resistance and expiratory resistance. Results: The level of BCYRN1 in ASMCs separated from rats in asthma group and in ASMCs treated with PDGF-BB was 3.60±0.45 and 3.53±0.35, respectively, significantly higher than those of the corresponding control (both P<0.01). Ad-BCYRN1 significantly increased the expression of BCYRN1 in ASMCs. The cell viability and proliferation rates of ASMCs transfected with Ad-BCYRN1 increased 1.75-and 1.47-fold compared to those of the control group, respectively (P<0.01); mobility increased 2.42-fold compared to that of the control group (all P<0.01). BCYRN1 knockdown reversed the increasing proliferation and migration of ASMCs induced by PDGF-BB. The cell proliferation rate and cell migration number in the PDGF-BB treatment group were (4.87±0.21)% and 80.00±5.00, respectively, which were significant higher than those in the si-BCYRN1 transfected group ((3.63±0.21)% and 25.33±2.52, all P<0.01). BCYRN1 knockdown reduced the inspiratory resistance and expiratory resistance in sensitization + Ad-SM22α-siBCYRN1 group. When the concentration of acetylcholine reached 1 mg/kg, the inspiratory resistance in the group A, group B, group C, and group D were 8.27±0.21, 25.40±0.56, 12.07±0.67 and 8.40±0.46 cmH2O·s·ml-1, and expiratory resistance were 13.30±0.56, 38.37±1.33, 16.40±0.56 and 13.40±0.46 cmH2O·s·ml-1, respectively (all P<0.01). Conclusion: Overexpression of BCYRN1 promotes the proliferation and migration of ASMCs in rat model of asthma.
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Affiliation(s)
- X Y Zhang
- Department of Respiratory Medicine, People's Hospital Affiliated to Zhengzhou University, Zhengzhou 450003, China
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Li WP, Xu HM, Zhao LM, Li XY. [The arc-shaped flap plasty in the treatment of webbed neck: one case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 52:616-618. [PMID: 28822418 DOI: 10.3760/cma.j.issn.1673-0860.2017.08.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- W P Li
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University; Shanghai 200062, China
| | - H M Xu
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University; Shanghai 200062, China
| | - L M Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University; Shanghai 200062, China
| | - X Y Li
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Children's Hospital, Shanghai Jiao Tong University; Shanghai 200062, China
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Wang C, Wang CY, Ma LL, Zhang Y, Zhao LM, Gao CJ, Hou XM. [The analysis of systemic concomitant disease in sudden deafness patients]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:85-87. [PMID: 29871192 DOI: 10.13201/j.issn.1001-1781.2017.02.001] [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: 09/14/2016] [Indexed: 11/12/2022]
Abstract
Objective:To investigate the clinical characteristics of patients with underlying disease in sudden deafness.Method:One hundred and seventy-three inpatients suffered from sudden deafness were included in this study. We analyzed the underlying disease of these patients retrospectively.Result:The underlying disease of sudden deafness patients mainly include atherosclerosis risk factors (hypertension, diabetes, hyperlipemia, hyperhomocystinemia, hyperuricemia) 79.8%, cervical vertebra disease 26.6%, ear disease 19.1%, thyroid disease 13.9%.Conclusion:The characteristics of underlying disease may plays a crucial role in pathogenesis and treatment in sudden deafness patients.
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Affiliation(s)
- C Wang
- Department of Hyperbaric Oxygen, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - C Y Wang
- Department of Otolaryngology Head and Neck Surgery, Beijing Chaoyang Hospital, Capital Medical University
| | - L L Ma
- Department of Hyperbaric Oxygen, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Y Zhang
- Department of Hyperbaric Oxygen, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - L M Zhao
- Department of Hyperbaric Oxygen, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - C J Gao
- Department of Hyperbaric Oxygen, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - X M Hou
- Department of Hyperbaric Oxygen, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
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Zhao LM, Pang AX. Iodine-131 treatment of thyroid cancer cells leads to suppression of cell proliferation followed by induction of cell apoptosis and cell cycle arrest by regulation of B-cell translocation gene 2-mediated JNK/NF-κB pathways. ACTA ACUST UNITED AC 2017; 50:e5933. [PMID: 28099584 PMCID: PMC5264532 DOI: 10.1590/1414-431x20165933] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Accepted: 11/07/2016] [Indexed: 11/22/2022]
Abstract
Iodine-131 (131I) is widely used for the treatment of thyroid-related
diseases. This study aimed to investigate the expression of p53 and
BTG2 genes following 131I therapy in thyroid cancer
cell line SW579 and the possible underlying mechanism. SW579 human thyroid squamous
carcinoma cells were cultured and treated with 131I. They were then
assessed for 131I uptake, cell viability, apoptosis, cell cycle arrest,
p53 expression, and BTG2 gene expression. SW579 cells were
transfected with BTG2 siRNA, p53 siRNA and siNC and were then examined for the same
aforementioned parameters. When treated with a JNK inhibitor of SP600125 and
131I or with a NF-κB inhibitor of BMS-345541 and 131I,
non-transfected SW579 cells were assessed in JNK/NFκB pathways. It was observed that
131I significantly inhibited cell proliferation, promoted cell
apoptosis and cell cycle arrest. Both BTG2 and p53 expression were enhanced in a
dose-dependent manner. An increase in cell viability by up-regulation in
Bcl2 gene, a decrease in apoptosis by enhanced
CDK2 gene expression and a decrease in cell cycle arrest at
G0/G1 phase were also observed in SW579 cell lines
transfected with silenced BTG2 gene. When treated with SP600125 and
131I, the non-transfected SW579 cell lines significantly inhibited JNK
pathway, NF-κB pathway and the expression of BTG2. However, when treated with
BMS-345541 and 131I, only the NF-κB pathway was suppressed.
131I suppressed cell proliferation, induced cell apoptosis, and promoted
cell cycle arrest of thyroid cancer cells by up-regulating B-cell translocation gene
2-mediated activation of JNK/NF-κB pathways.
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Affiliation(s)
- L M Zhao
- Department of Nuclear Medicine, Linyi People's Hospital, Linyi, China
| | - A X Pang
- Department of Urology, Linyi People's Hospital, Linyi, China
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Hong K, Zhao LM, Xu SX, Tang WH, Mao JM, Liu DF, Jiang H, Ma LL, Qiao J. Multiple factors affecting surgical outcomes and patency rates in use of single-armed two-suture microsurgical vasoepididymostomy: a single surgeon's experience with 81 patients. Asian J Androl 2016; 18:129-33. [PMID: 26289398 PMCID: PMC4736341 DOI: 10.4103/1008-682x.159718] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Vasoepididymostomy (VE), as the most challenging procedure in microsurgeries, is often carried out with a double-armed two-suture technique. In this study, we evaluated the efficacy and safety of the single-armed two-suture VEs on humans and studied the factors that could possibly affect the patency rates. From July 2012 to July 2013, we reviewed 81 patients with consecutive primary epididymal obstruction who underwent single-armed two-suture longitudinal intussusception microsurgical VEs by a single surgeon, Kai Hong (KH). At the same time, we analyzed seven factors that possibly related to the patency rates. With the single-armed technique, a total of 81 men underwent the microsurgical VEs. Data on 62 patients were completely recorded. 19 patients were lost to follow-up. Mean age was 31 years old. Mean follow-up time was 8.8 (2-17) months. The patency rate was 66.1% (41/62). Natural pregnancy rate was 34.1% (14/41). Overall pregnancy rate was 22.6% (14/62). No severe surgical complications were noted. With logistic regression test analysis, there were two factors related to a higher patency rate: anastomosis sites (P = 0.035) and motile sperm found in the epididymal fluid (P = 0.006). Motile sperm found in the epididymal fluid were associated with a higher patency rate (OR = 11.80, 95% CI = 1.79, 77.65). The single-armed two-suture longitudinal VE technique is feasible for microsurgical practice. The patency and pregnancy rates are comparable to the doubled-armed technique. Anastomosis sites and motile sperm found in the epididymal fluid were the most two important factors related to higher patency.
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Affiliation(s)
| | | | | | | | | | | | - Hui Jiang
- Department of Urology, Peking University Third Hospital; Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital; Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing, China
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Zhao LM, Jiang H, Hong K, Lin HC, Tang WH, Liu DF, Mao JM, Lian Y, Ma LL. [Outcome of treatment of Y chromosome AZFc microdeletion patients]. Beijing Da Xue Xue Bao Yi Xue Ban 2016; 48:607-611. [PMID: 29263498] [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: 06/07/2023]
Abstract
OBJECTIVE To discuss the treatment options for patients with azoospermia factor (AZF) c microdeletion on Y chromosome. METHODS One hundred and eighty three patients, who were diagnosed as AZFc microdeletion on Y chromosome in Peking University Third Hospital, were recruited in our study. In order to get better treatment option for this kind of patients, we retrospectively analyzed their clinic data including the treatment process and pregnancy outcome and found out the characteristics of their semen. RESULTS Among the 183 patients, sperms can be found in ejaculated semen in 105 patients (57.4%, 105/183). One hundred and three patients (98.1%, 103/105) were diagnosed as severe or extremely severe oligospermia. Regular medication was given to 98 patients, 6 patients (6.1%, 6/98) of which got natural pregnancy. The other 99 patients who have sperms in their semen received intracytoplasmic sperm injection (ICSI), 68 patients (68.7%, 68/99) of which got pregnancy. Seventy eight patients were diagnosed as azoospermia among all the 183 patients. Forty nine patients received testicular sperm aspiration (TESA), and 21 patients choose to receive micro-TESE directly. Among the 49 patients with TESA, sperms were retrieved in 17 patients (34.7%, 17/49), and sperms were not retrieved in 32 patients (65.3%, 32/49), of which 12 patients (37.5%, 12/32) gave up treatment and 20 patients (62.5%, 20/32) choose micro-TESE. Among the 41 patients who choose to receive micro-TESE, operation has been done on 19 patients, of which 11 patients (57.9%, 11/19) got sperms. Among the 11 patients, TESA has been done on 6 patients before micro-TESE, of which 4 patients (66.6%, 4/6) got sperms. ICSI has already been done on 7 azoospermia AZFc microdeletion patients who underwent micro-TESE, of which 4 patients (57.1%, 4/7) get pregnancy. CONCLUSION AZFc microdeletion patients who had sperms were always diagnosed as severe or extremely severe oligospermia. ICSI was their first choice instead of drug therapy. For AZFc microdeletion patients who were diagnosed as azoospermia, TESA was one of their choices, however, the success rate is not high. Micro-TESE is still possible to get sperms even after the failure of TESA. Therefore, we may choose micro-TESE instead of TESA in some azoospermia patients in order to reduce surgical trauma on patients.
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Affiliation(s)
- L M Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - H Jiang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - K Hong
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - H C Lin
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - W H Tang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - D F Liu
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - J M Mao
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - Y Lian
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - L L Ma
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
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Zhao LM, Jiang H, Hong K, Lin HC, Tang WH, Liu DF, Mao JM, Lian Y, Ma LL. [Outcome of treatment of Y chromosome AZFc microdeletion patients]. Beijing Da Xue Xue Bao Yi Xue Ban 2016; 48:607-611. [PMID: 27538137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To discuss the treatment options for patients with azoospermia factor (AZF) c microdeletion on Y chromosome. METHODS One hundred and eighty three patients, who were diagnosed as AZFc microdeletion on Y chromosome in Peking University Third Hospital, were recruited in our study. In order to get better treatment option for this kind of patients, we retrospectively analyzed their clinic data including the treatment process and pregnancy outcome and found out the characteristics of their semen. RESULTS Among the 183 patients, sperms can be found in ejaculated semen in 105 patients (57.4%, 105/183). One hundred and three patients (98.1%, 103/105) were diagnosed as severe or extremely severe oligospermia. Regular medication was given to 98 patients, 6 patients (6.1%, 6/98) of which got natural pregnancy. The other 99 patients who have sperms in their semen received intracytoplasmic sperm injection (ICSI), 68 patients (68.7%, 68/99) of which got pregnancy. Seventy eight patients were diagnosed as azoospermia among all the 183 patients. Forty nine patients received testicular sperm aspiration (TESA), and 21 patients choose to receive micro-TESE directly. Among the 49 patients with TESA, sperms were retrieved in 17 patients (34.7%, 17/49), and sperms were not retrieved in 32 patients (65.3%, 32/49), of which 12 patients (37.5%, 12/32) gave up treatment and 20 patients (62.5%, 20/32) choose micro-TESE. Among the 41 patients who choose to receive micro-TESE, operation has been done on 19 patients, of which 11 patients (57.9%, 11/19) got sperms. Among the 11 patients, TESA has been done on 6 patients before micro-TESE, of which 4 patients (66.6%, 4/6) got sperms. ICSI has already been done on 7 azoospermia AZFc microdeletion patients who underwent micro-TESE, of which 4 patients (57.1%, 4/7) get pregnancy. CONCLUSION AZFc microdeletion patients who had sperms were always diagnosed as severe or extremely severe oligospermia. ICSI was their first choice instead of drug therapy. For AZFc microdeletion patients who were diagnosed as azoospermia, TESA was one of their choices, however, the success rate is not high. Micro-TESE is still possible to get sperms even after the failure of TESA. Therefore, we may choose micro-TESE instead of TESA in some azoospermia patients in order to reduce surgical trauma on patients.
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Affiliation(s)
- L M Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - H Jiang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - K Hong
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - H C Lin
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - W H Tang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
| | - D F Liu
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - J M Mao
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - Y Lian
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - L L Ma
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
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Song YF, Zhang H, Zhao LM, Shen DY, Tang DY. Coexistence and interaction of vector and bound vector solitons in a dispersion-managed fiber laser mode locked by graphene. Opt Express 2016; 24:1814-22. [PMID: 26832559 DOI: 10.1364/oe.24.001814] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
We report on the experimental observation of vector and bound vector solitons in a fiber laser passively mode locked by graphene. Localized interactions between vector solitons, vector soliton with bound vector solitons, and vector soliton with a bunch of vector solitons are experimentally investigated. We show that depending on the soliton interactions, various stable and dynamic multiple vector soliton states could be formed.
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Tang WH, Zhuang XJ, Ma LL, Hong K, Zhao LM, Liu DF, Mao JM, Zhang HL, Jiang H. Effect of sildenafil on erectile dysfunction and improvement in the quality of sexual life in China: a multi-center study. Int J Clin Exp Med 2015; 8:11539-11543. [PMID: 26379977 PMCID: PMC4565360] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Accepted: 07/06/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Erectile dysfunction (ED) is a common medical condition in middle-aged and elderly men; however, large-scale and multi-center epidemiologic studies about the treatment effects on ED in China are lacking. OBJECTIVE To elucidate the efficacy and safety of a phosphodiesterase type 5 inhibitor (PDE5-i) in the treatment of men with ED in China. METHODS Patients clinically diagnosed with ED from 53 andrology centers in 15 metropolitan areas in China who were willing to undergo treatment for ED were enrolled in the study. Each participant received 4 weeks of unique PDE5-i treatment, and completed the following forms (International Index of Erectile Function score 5 [IIEF-5], the Erection Hardness Score [EHS], Self-Esteem and Relationship [SEAR], and SF-36 of Health Related Quality of Life). Pre-and post-treatment data were compared using descriptive analysis. RESULTS A total of 1956 ED patients were included in this study; 1922 patients provided valid questionnaires for analysis. Four weeks of sildenafil treatment was considered effective and safe. Specifically, the IIEF-5 sores (11.30 ± 3.7 vs. 20.02 ± 5.1, P < 0.05), EHS levels (99.1% patients increases to level 3 or 4), and the SEAR scores (32.5 vs. 55.1, P < 0.05) were significantly improved compared to baseline. Sildenafil therapy also significantly improved the satisfaction, enjoyment, and frequency of sexual attempts and sexual activity, as well as physical vigor and mental health scores. CONCLUSION The present study provides direct evidence regarding the efficacy and safety of sildenafil therapy in a large sample of Chinese men with ED, thus verifying that sildenafil improved the symptoms and quality of sexual life.
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Affiliation(s)
- Wen-Hao Tang
- Department of Urology, Peking University Third Hospital Beijing 100191, People's Republic of China
| | - Xin-Jie Zhuang
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Peking University Third Hospital, Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproduction Beijing 100191, People's Republic of China
| | - Lu-Lin Ma
- Department of Urology, Peking University Third Hospital Beijing 100191, People's Republic of China
| | - Kai Hong
- Department of Urology, Peking University Third Hospital Beijing 100191, People's Republic of China
| | - Lian-Ming Zhao
- Department of Urology, Peking University Third Hospital Beijing 100191, People's Republic of China
| | - De-Feng Liu
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Peking University Third Hospital, Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproduction Beijing 100191, People's Republic of China
| | - Jia-Ming Mao
- Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Peking University Third Hospital, Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproduction Beijing 100191, People's Republic of China
| | - Hong-Liang Zhang
- Department of Urology, Peking University Third Hospital Beijing 100191, People's Republic of China
| | - Hui Jiang
- Department of Urology, Peking University Third Hospital Beijing 100191, People's Republic of China
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Ge YQ, Luo JL, Li L, Jin XX, Tang DY, Shen DY, Zhang SM, Zhao LM. Initial conditions for dark soliton generation in normal-dispersion fiber lasers. Appl Opt 2015; 54:71-75. [PMID: 25967008 DOI: 10.1364/ao.54.000071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 11/17/2014] [Indexed: 06/04/2023]
Abstract
We report results of numerical simulations on the various initial conditions for dark soliton generation in an all-normal-dispersion fiber laser. All the dark solitons generated are odd dark solitons. Differently from the dark soliton generation in fibers, where an arbitrary dip could evolve into a dark soliton, it is found that the dark soliton can originate only from an initial dip with a certain parameter requirement. A bright pulse with either a hyperbolic secant square, Gaussian, or Lorentz profile can be developed into a dark soliton, provided that the parameters of the initial bright pulse are selected. Dark solitons can be generated in fiber lasers only if there is a phase jump, and this phase jump can be maintained and evolve to π during the pulse evolution.
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Peng J, Li Z, Tu XA, Tian L, Zhang Y, Hong K, Wang X, Yuan YM, Zhao LM, Ping P, Zhou LX, Liu YD, Mao XM, Zhao FJ, Chen XF, Dong Q, Sun ZY, Zhou T, Liu ZY, Sun XZ, Jiang T, Philip SL. [Microsurgical management of male infertility in china: 15-year development and prospects]. Zhonghua Nan Ke Xue 2014; 20:586-594. [PMID: 25095614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Male infertility is a common and complex disease in urology and andrology, and for many years there has been no effective surgical treatment. With the emergence of microsurgery and assisted reproductive medicine (IVF/ICSI), rapid development has been achieved in the treatment of male infertility. The Center for Male Reproductive Medicine and Microsurgery at Weill Cornell Medical College of Cornell University has been playing an important leading role in developing microsurgical techniques for the management of male infertility. The development of microsurgical treatment of male infertility in China has experienced the 3 periods of emerging, making, and boosting ever since its systematic introduction from Weill Cornell Medical College 15 years ago. At present, many Chinese hospitals have adopted microsurgery in the management of male infertility, which has contributed to the initial establishment of a microsurgical treatment system for male infertility in China. However, some deficiencies do exist concerning microsurgical treatment of male infertility, as in normalized technical training programs for competent surgeons, unified criteria for evaluation of surgical outcomes, and detailed postoperative follow-up data. This article presents an overview on the 15-year development of microsurgical management of male infertility in China, points out the existing deficiencies, and offers some propositions for the promotion of its development.
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Song YF, Guo J, Zhao LM, Shen DY, Tang DY. 280 GHz dark soliton fiber laser. Opt Lett 2014; 39:3484-3487. [PMID: 24978517 DOI: 10.1364/ol.39.003484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We report on an ultrahigh repetition rate dark soliton fiber laser. We show both numerically and experimentally that by taking advantage of the cavity self-induced modulation instability and the dark soliton formation in a net normal dispersion cavity fiber laser, stable ultrahigh repetition rate dark soliton trains can be formed in a dispersion-managed cavity fiber laser. Stable dark soliton trains with a repetition rate as high as ∼280 GHz have been generated in our experiment. Numerical simulations have shown that the effective gain bandwidth limitation plays an important role on the stabilization of the formed dark solitons in the laser.
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Bakhtiani PA, Zhao LM, El Youssef J, Castle JR, Ward WK. A review of artificial pancreas technologies with an emphasis on bi-hormonal therapy. Diabetes Obes Metab 2013; 15:1065-70. [PMID: 23602044 PMCID: PMC3766424 DOI: 10.1111/dom.12107] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Revised: 01/07/2013] [Accepted: 03/27/2013] [Indexed: 01/30/2023]
Abstract
Since the discovery of insulin, great progress has been made to improve the accuracy and safety of automated insulin delivery systems to help patients with type 1 diabetes achieve their treatment goals without causing hypoglycaemia. In recent years, bioengineering technology has greatly advanced diabetes management, with the development of blood glucose meters, continuous glucose monitors, insulin pumps and control systems for automatic delivery of one or more hormones. New insulin analogues have improved subcutaneous absorption characteristics, but do not completely eliminate the risk of hypoglycaemia. Insulin effect is counteracted by glucagon in non-diabetic individuals, while glucagon secretion in those with type 1 diabetes is impaired. The use of glucagon in the artificial pancreas is therefore a logical and feasible option for preventing and treating hypoglycaemia. However, commercially available glucagon is not stable in aqueous solution for long periods, forming potentially cytotoxic fibrils that aggregate quickly. Therefore, a more stable formulation of glucagon is needed for long-term use and storage in a bi-hormonal pump. In addition, a model of glucagon action in type 1 diabetes is lacking, further limiting the inclusion of glucagon into systems employing model-assisted control. As a result, although several investigators have been working to help develop bi-hormonal systems for patients with type 1 diabetes, most continue to utilize single hormone systems employing only insulin. This article seeks to focus on the attributes of glucagon and its use in bi-hormonal systems.
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Affiliation(s)
- P A Bakhtiani
- Harold Schnitzer Diabetes Center, Oregon Health and Science University, Portland, OR, USA
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Zhao LM, Jiang H, Hong K, Lu M, Tang WH, Mao JM, Yang QL, Ma LL. [Influence of recombination abnormality in spermatocyte meiosis on the pathology of patients with non-obstructive azoospermia]. Zhonghua Nan Ke Xue 2013; 19:425-428. [PMID: 23757965] [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: 06/02/2023]
Abstract
OBJECTIVE To primarily study the influence of recombination abnormality in human spermatocyte meiosis on the pathology of the patients with non-obstructive azoospermia (NOA). METHODS We obtained testis tissues from 6 NOA patients by testicular biopsy and divided the tissue of each patient into 2 portions, one for pathological examination and the other for immunofluorescent staining. We observed the synaptonemal complex and the numbers of the recombination sites on homologous chromosomes, and analyzed the relationship between abnormal recombination and pathological findings. RESULTS Pathological examination showed that the basement membrane of the seminiferous tubules was thickened in 3 of the cases and atrophied in the other 3, the number of autosomal MLH1 foci in a spermatocyte ranging from 10 to 50 in the former 3, and from 30 to 50 in the latter 3. CONCLUSION The increased range of the homologous chromosomal recombination frequency may be one of the possible factors for the thickening of seminiferous tubule basement membrane and even lumen occlusion in NOA patients.
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Affiliation(s)
- Lian-Ming Zhao
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
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Tang WH, Jiang H, Ma LL, Hong K, Zhao LM, Liu DF, Mao JM, Yang Y, Zhang J, Gao L, Qiao J. [Tadalafil combined with behavior therapy for semen collection from infertile males in whom masturbation fails]. Zhonghua Nan Ke Xue 2013; 19:439-442. [PMID: 23757968] [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: 06/02/2023]
Abstract
OBJECTIVE To study the effect of Tadalafil combined with behavior therapy in helping obtain semen from infertile men in whom masturbation has failed. METHODS Sixty male infertile patients from whom masturbation had failed to obtain semen were equally assigned to receive Tadalafil combined with behavior therapy (combination group) or Tadalafil only (control group). All the patients took Tadalafil 20 mg orally the night before the day of semen collection by masturbation. Before this procedure, the patients of the combination group practiced masturbation 16 - 24 times at home. RESULTS The average ages of the patients were (37.0 +/- 5.1) yr and (37.5 +/- 5.2) yr and their IIEF-5 scores were 16.50 +/- 1.25 and 16.90 +/- 1.09 in the combination and the control group, respectively, neither with statistically significant difference between the two groups. Semen was successfully obtained from 9 patients (30.0%) of the combination group and 1 patient (3.33%) of the control group, with statistically significant difference between the two groups (chi2 = 7.680, P < 0.01). CONCLUSION By training the patients and establishing a conditioned response to masturbation, Tadalafil combined with behavior therapy can significantly increase the success rate of semen collection from the male infertile patients in whom masturbation fails.
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Affiliation(s)
- Wen-Hao Tang
- Department of Urology, Peking University Third Hospital, Beijing 100191, China.
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Tang WH, Jiang H, Ma LL, Hong K, Zhao LM, Mao JM, Yang Y, Zhang X, Huang X, Qiao J. [Detection of spermatozoa in the testicular tissue of non-obstructive azoospermia patients: cell suspension examination versus histopathology]. Zhonghua Nan Ke Xue 2013; 19:68-71. [PMID: 23469666] [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: 06/01/2023]
Abstract
OBJECTIVE To compare cell suspension examination with histopathology in detecting spermatozoa in the testicular tissue of non-obstructive azoospermia (NOA) patients, and to investigate the reliability of sperm retrieval and appropriate therapeutic options when the results of the two methods are inconsistent. METHODS A total of 1 112 NOA patients underwent testicular sperm extraction (TESE), their testicular tissues subjected to cell suspension examination and histopathology, respectively. RESULTS The consistency rate of the two methods was 92.63%, with the sperm detection rate of 41.82% and non-sperm detection rate of 50.81%. Sperm were retrieved from 96.0% (24/25) of the patients on the day of oval retrieval, in whom sperm were found in cell suspension examination but not in histopathology. After intracytoplasmic sperm injection (ICSI), pregnancy was achieved in 8 cases (33.33%), abortion occurred in 4 (16.67%), and non-pregnancy in 12 (50.0%). CONCLUSION Cell suspension examination combined with histopathology for detecting sperm in the testicular tissue of NOA patients gives instant, accurate, reliable and consistent results, and therefore insures successful sperm retrieval for NOA patients during the IVF cycle. In case of inconsistency between the results of the two methods, cell suspension examination is more helpful for clinical therapeutic option.
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Affiliation(s)
- Wen-Hao Tang
- Department of Urology, Beijing University Third Hospital, Beijing 100191, China.
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Tang WH, Jiang H, Ma LL, Hong K, Zhong Q, Yang CS, Zhao LM, Liu DF, Mao JM, Yang Y, Chen Q, Yuan RP, Zhang X, Li B, Wei N. [Relationship of sperm morphology with reproductive hormone levels in infertile men]. Zhonghua Nan Ke Xue 2012; 18:243-247. [PMID: 22474991] [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: 05/31/2023]
Abstract
OBJECTIVE To investigate the relationship of sperm morphology with reproductive hormones in infertile men and the pathogenesis of teratozoospermia. METHODS This study included 90 infertile men aged 25 - 40 years. We measured their testis volumes using the Prader orchidometer, conducted routine semen analyses according to the WHO laboratory standard, and determined the concentrations of reproductive hormones and sex hormone-binding globulin (SHBG) by chemiluminescence and the levels of free testosterone (FT) and bioavailable testosterone (BioT). RESULTS All the subjects showed normal sperm concentration. Based on the results of semen morphology analysis, the 90 infertile men were equally divided into groups 1 (morphologically normal sperm <4%), 2 (morphologically normal sperm > or = 4% and <10%), and 3 (morphologically normal sperm > or = 10%), with no significant differences in age among the three groups (P>0.05). The volumes of the left testis were (14.27 +/- 3.65) ml, (16.90 +/- 3.57) ml and (14.57 +/- 3.57) ml, respectively (P = 0.006 group 1 vs group 2, P = 0.741 group 1 vs group 3, P = 0.014 group 2 vs group 3), and those of the right testis were (14.60 +/- 3.70) ml, (16.60 +/- 3.35) ml and (14.67 +/- 3.54) ml, respectively (P = 0.050). There were no significant differences among the three groups in prolactin, follicle-stimulating hormone, luteinising hormone, estradiol, total testosterone and SHBG, (P>0.05). The levels of serum FT were (0.25 +/- 0.07) nmol/L, (0.29 +/- 0.07) nmol/L and (0.31 +/- 0.13) nmol/L (P = 0.086 group 1 vs group 2, P= 0.010 group 1 vs group 3, P= 0.364 group 2 vs group 3), and those of BioT were (5.81 +/- 1.58) nmol/L, (6.78 +/- 1.55) nmol/L and (7.29 +/- 3.02) nmol/L, respectively (P = 0.086 group 1 vs group 2, P = 0.010 group 1 vs group 3, P = 0.364 group 2 vs group 3). The percentage of morphologically normal sperm was positively correlated with the levels of serum FT and BioT (P<0.05). CONCLUSION The higher the levels of serum FT and BioT, the higher the percentage of morphologically normal sperm, which suggests that serum FT and BioT might be involved in the pathogenesis of teratozoospermia.
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Affiliation(s)
- Wen-Hao Tang
- Department of Urology, Center of Reproductive Medicine, Beijing University Third Hospital, Beijing 10019, China.
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Zhao LM, Tang DY, Zhang H, Wu X, Bao Q, Loh KP. Dissipative soliton operation of an ytterbium-doped fiber laser mode locked with atomic multilayer graphene. Opt Lett 2010; 35:3622-3624. [PMID: 21042370 DOI: 10.1364/ol.35.003622] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Mode locking of an ytterbium-doped fiber laser with atomic multilayer graphene is, to the best of our knowledge, experimentally demonstrated for the first time. Dissipative solitons with duration of 580 ps at 1069.8 nm were generated. Since graphene can also be used to mode lock erbium-doped fiber lasers, our result shows that graphene indeed has wavelength-independent saturable absorption, which could be exploited to mode lock fiber lasers with various operating wavelengths.
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Affiliation(s)
- L M Zhao
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore
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Liu DF, Jiang H, Hong K, Zhao LM, Tang WH, Ma LL. Influence of erectile dysfunction course on its progress and efficacy of treatment with phosphodiesterase type 5 inhibitors. Chin Med J (Engl) 2010; 123:3258-3261. [PMID: 21163126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Abstract
BACKGROUND Erectile dysfunction (ED) is a common impairment among older men, and the prevalence rates increase sharply after age of 60 years. Most studies have focused on the prevalence rate or dangerous factors. The aim of this study was to investigate the basic epidemiologic data about ED patients with different ED courses. The purpose of this research was to understand the therapeutic effect of phosphodiesterase type 5 inhibitor (PDE5-I) and see how and why the ED course impact the progress of ED and the therapeutic effect of PDE5-I treatment. METHODS From June 2008 to June 2009, 4252 questionnaires (Quality of Erection Questionnaire, QEQ) were gathered from 46 centers by urology or andrology doctors all around China. Patients with ED (age ≥ 20 years) filled in first half of the questionnaires when they came for the first time, and then completed the second half 4 weeks after PDE5-I therapy. RESULTS ED courses of most patients were less than 5 years (< 5 years, 74.0%; 5 - 10 years 20.8%; > 10 years, 5.2%). As ED course increasing, the incidence of the risk factors of ED, such as smoking, drinking, hypertension, diabetes, heart disease and hyperlipidemia also increase (P ≤ 0.01). PDE5-I was effective in improving the quality of sexual activities (P ≤ 0.01). Administration of PDE5-I improves satisfaction, enjoyment and frequency of sexual activities. The longer the ED course, the worse the therapeutic effect (< 5 years, 96.1%; 5 - 10 years, 94.9%; > 10 years, 89.0%) (P ≤ 0.01). CONCLUSIONS The ED course greatly affected the therapeutic effect of PDE5-1, the patients with ED should consult doctor at early stage of the disease. Administration of PDE5-I effectively improves the penile erection and the quality of sexual life of the patients hence should be considered as first-line medicine in the treatment of ED.
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Affiliation(s)
- De-Feng Liu
- Department of Urology, Peking University Third Hospital, Beijing 100191, China
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Abstract
We report on the dissipative soliton (DS) trapping in a fiber ring laser mode locked with a semiconductor saturable absorber mirror and operated in normal dispersion regime. It was shown that despite the fact that a DS is strongly frequency chirped, two DSs formed along the two orthogonal polarization directions of a birefringent cavity fiber laser can incoherently couple and travel with the same group velocity in the laser. Numerical simulations have well confirmed the experimental observations.
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Affiliation(s)
- L M Zhao
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798
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Abstract
We observe a novel type of vector dark soliton in a fiber ring laser. The vector dark soliton consists of stable localized structures separating the two orthogonal linear polarization eigenstates of the laser emission and is visible only when the total laser emission is measured. Numerical simulations based on the coupled complex Ginzburg-Landau equations have well reproduced the results of the experimental observation.
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Affiliation(s)
- H Zhang
- School of Electrical and Electronic Engineering, Nanyang Technological University, 639798 Singapore
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Zhao LM, Tang DY, Wu X, Zhang H, Tam HY. Coexistence of polarization-locked and polarization-rotating vector solitons in a fiber laser with SESAM. Opt Lett 2009; 34:3059-3061. [PMID: 19838225 DOI: 10.1364/ol.34.003059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We report the experimental observation of the coexistence of polarization-locked vector solitons (PLVSs) and polarization-rotating vector solitons (PRVSs) in a fiber laser mode locked with a semiconductor saturable absorber mirror. It was found experimentally that interaction between the PLVSs in a fiber laser could lead to formation of bound states of PRVSs. Moreover, the bound PRVSs as a unit have the same group velocity as that of the PLVSs in the cavity.
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Affiliation(s)
- L M Zhao
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798
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