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Lin TY, Chen IH, Weng HY, Lin YC, Ou CH, Li CY, Cheng YS. Association between chronic prostatitis and the subsequent benign prostatic hyperplasia: a population-based national cohort study. World J Urol 2024; 42:126. [PMID: 38460003 DOI: 10.1007/s00345-024-04820-w] [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: 08/20/2023] [Accepted: 01/16/2024] [Indexed: 03/11/2024] Open
Abstract
PURPOSE To explore the association between chronic prostatitis (CP) and the subsequent development of benign prostatic hyperplasia (BPH). METHODS Data analyzed were medical claims of Taiwan's National Health Insurance program. From 2010 to 2017, 3571 patients ≧20 years with CP diagnosed by certified urologists were enrolled. Patients with past BPH diagnosis and diagnosis of prostate cancer, inguinal hernia, interstitial cystitis, and urethritis in the past and within one year after the first CP diagnosis were excluded. Age-matched controls were randomly selected from all non-CP individuals of the same exclusion criteria in the study period with a CP/non-CP ratio of 1:4. The follow-up was made from the first CP diagnosis to death or the end of 2018. The endpoint was the newly diagnosed BPH. Cox proportional hazard regression model was used to estimate the hazard ratio (HR) and 95% confidence interval (CI) of BPH in association with CP. RESULTS Over a maximum of 8 years of follow-up, 287 (8.03%) and 258 (0.43%) BPH events were noted for the CP and non-CP group, respectively, representing a covariate adjusted HR (aHR) of 4.30 (95% CI, 3.61-5.13). Younger patients tended to suffer from higher aHRs, especially those aged 20-39 years (aHR: 11.45, 95% CI, 5.12-25.64). CONCLUSION The Taiwan national health database indicated that CP patients had a significantly higher risk of developing BPH later than non-CP patients. Interestingly, the younger the CP is diagnosed (under 40), the greater the risk.
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Affiliation(s)
- Tsung-Yen Lin
- Division of Urology, Department of Surgery, National Cheng Kung University Hospital Dou-Liou Branch, Yunlin, Taiwan
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - I-Hung Chen
- Division of Urology, Department of Surgery, National Cheng Kung University Hospital Dou-Liou Branch, Yunlin, Taiwan
| | - Han-Yu Weng
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Chiao Lin
- Division of Urology, Department of Surgery, National Cheng Kung University Hospital Dou-Liou Branch, Yunlin, Taiwan
| | - Chien-Hui Ou
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chung-Yi Li
- Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Public Health, College of Public Health, China Medical University, Taichung, Taiwan
- Department of Healthcare Administration, College of Medical and Health Science, Asia University, Taichung, Taiwan
| | - Yu-Sheng Cheng
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
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Chuang MS, Ou YC, Cheng YS, Wu KY, Wang CT, Huang YC, Kao YL. Surgical Outcomes and Predictive Factors in Patients With Detrusor Underactivity Undergoing Bladder Outlet Obstruction Surgery. Int Neurourol J 2024; 28:59-66. [PMID: 38569621 PMCID: PMC10990765 DOI: 10.5213/inj.2346252.126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 01/08/2024] [Indexed: 04/05/2024] Open
Abstract
PURPOSE This study was conducted to evaluate the efficacy of bladder outlet surgery in patients with detrusor underactivity (DU) and to identify factors associated with successful outcomes. METHODS We conducted a retrospective review of men diagnosed with DU in urodynamic studies who underwent bladder outlet surgery for lower urinary tract symptoms between May 2018 and April 2023. The International Prostate Symptom Score (IPSS) questionnaire, uroflowmetry (UFM), and multichannel urodynamic studies were administered. Successful treatment outcomes were defined as either an IPSS improvement of at least 50% or the regaining of spontaneous voiding in patients urethral catheterization prior to surgery. RESULTS The study included 93 male patients. Men diagnosed with significant or equivocal bladder outlet obstruction (BOO) experienced significant postoperative improvements in IPSS (from 20.6 to 6.0 and from 17.4 to 6.5, respectively), maximum urine flow rate (from 5.0 mL/sec to 14.4 mL/sec and from 8.8 mL/sec to 12.2 mL/sec, respectively) and voiding efficiency (from 48.8% to 86.0% and from 61.2% to 85.1%, respectively). However, in the group without obstruction, the improvements in IPSS and UFM results were not significant. The presence of detrusor overactivity (odds ratio [OR], 3.152; P=0.025) and preoperative urinary catheterization (OR, 2.756; P=0.040) were associated with favorable treatment outcomes. Conversely, an unobstructed bladder outlet was identified as a negative prognostic factor. CONCLUSION In men with DU accompanied by equivocal or significant BOO, surgical intervention to alleviate the obstruction may enhance the IPSS, quality of life, and UFM results. However, those with DU and an unobstructed bladder outlet face a comparatively high risk of treatment failure. Preoperative detrusor overactivity and urinary catheterization are associated with more favorable surgical outcomes. Consequently, active deobstructive surgery should be considered for patients with DU who are experiencing urinary retention.
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Affiliation(s)
- Ming-Syun Chuang
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yin-Chien Ou
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Sheng Cheng
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Kuan-Yu Wu
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chang-Te Wang
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yuan-Chi Huang
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yao-Lin Kao
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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Hsieh YC, Wang CT, Kao YL, Cheng YS, Wu KY, Ho YH, Chuang MS, Huang YC, Ou YC. Therapeutic efficacy of 180-W GreenLight laser photoselective vaporization of the prostate for storage symptoms concomitant with benign prostatic obstruction and a search for outcome predictors. Neurourol Urodyn 2024; 43:646-654. [PMID: 38314960 DOI: 10.1002/nau.25409] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 09/11/2023] [Accepted: 01/08/2024] [Indexed: 02/07/2024]
Abstract
PURPOSE Benign prostatic obstruction (BPO) is the most common cause of lower urinary tract symptoms among men. GreenLight photoselective vaporization of the prostate (GL-PVP) using a 180-W Xcelerated performance system (XPS) laser is a well-established method for treating BPO-induced voiding symptoms. However, its therapeutic effects on storage symptoms remain unclear. This study aimed to analyze the storage outcomes in patients who underwent 180-W XPS GL-PVP for BPO and to identify outcome predictors. MATERIALS AND METHODS Patients who underwent 180-W XPS GL-PVP for BPO between May 2018 and May 2021 were retrospectively reviewed. Data on clinical characteristics, prostate volume, preoperative and postoperative International Prostate Symptom Scores (IPSS), and preoperative urodynamic parameters were collected. A favorable storage outcome was defined as ≥50% reduction in the IPSS storage subscore. RESULTS Ninety-nine male patients were included, with a mean age of 69.4 ± 9.6 years and a baseline prostatic volume of 75.9 ± 33.1 mL. The IPSS total, storage, and voiding subscores significantly decreased after GL-PVP (all p < 0.001). Seventy-two patients achieved favorable storage outcome at 6 months. Multivariate analysis revealed that detrusor underactivity was predictive of unfavorable storage outcomes (p = 0.022), while IPSS voiding-to-storage subscore ratio >1.25 and the presence of detrusor overactivity were predictive of favorable storage outcomes (p = 0.008 and 0.033, respectively). CONCLUSION 180-W XPS GL-PVP provided excellent outcomes in both voiding and storage lower urinary tract symptoms concomitant with BPO. Preoperative IPSS and multichannel urodynamic parameters including detrusor overactivity and underactivity are valuable predictors of postoperative storage outcomes.
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Affiliation(s)
- Yi-Chia Hsieh
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chang-Te Wang
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yao-Lin Kao
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Sheng Cheng
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Kuan-Yu Wu
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Hui Ho
- Department of Anesthesiology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ming-Syun Chuang
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yuan-Chi Huang
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yin-Chien Ou
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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Lin YH, Su CH, Chen HM, Wu MS, Pan HA, Chang CN, Cheng YS, Chang WT, Chiu CC, Teng YN. MicroRNA-320a enhances LRWD1 expression through the AGO2/FXR1-dependent pathway to affect cell behaviors and the oxidative stress response in human testicular embryonic carcinoma cells. Aging (Albany NY) 2024; 16:3973-3988. [PMID: 38385979 DOI: 10.18632/aging.205571] [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: 05/16/2022] [Accepted: 12/26/2023] [Indexed: 02/23/2024]
Abstract
BACKGROUND Testicular cancer is fairly rare but can affect fertility in adult males. Leucine-rich repeats- and WD repeat domain-containing protein 1 (LRWD1) is a sperm-specific marker that mainly affects sperm motility in reproduction. Our previous study demonstrated the impact of LRWD1 on testicular cancer development; however, the underlying mechanisms remain unclear. METHODS In this study, various plasmids associated with LRWD1 and miR-320a manipulation were used to explore the roles and regulatory effects of these molecules in NT2D1 cellular processes. A Dual-Glo luciferin-luciferase system was used to investigate LRWD1 transcriptional activity, and qRT-PCR and western blotting were used to determine gene and protein expression. RESULTS The results suggested that miR-320a positively regulated LRWD1 and positively correlated with NT2D1 cell proliferation but negatively correlated with cell migration and invasion ability. In addition, the miRNA-ribonucleoprotein complex AGO2/FXR1 was shown to be essential in the mechanism by which miR-320a regulates LRWD1 mRNA expression. As miR-320a was required to regulate LRWD1 expression through the AGO2 and FXR1 complex, eEF2 and eLF4E were also found to be involved in miR-320a increasing LRWD1 expression. Furthermore, miR-320a and LRWD1 were responsive to oxidative stress, and NRF2 was affected by the presence of miR-320a in response to ROS stimulation. CONCLUSIONS This is the first study showing the role of miR-320a in upregulating the testicular cancer-specific regulator LRWD1 and the importance of the AGO2/FXR1 complex in miR-320a-mediated upregulation of LRWD1 during testicular cancer progression.
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Affiliation(s)
- Yi-Hsiung Lin
- Center for Lipid Biosciences, Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Chia-Hui Su
- Department of Biological Sciences and Technology, National University of Tainan, Tainan 700, Taiwan
| | - Hsin-Mei Chen
- Department of Biological Sciences and Technology, National University of Tainan, Tainan 700, Taiwan
| | - Ming-Syuan Wu
- Department of Biological Sciences and Technology, National University of Tainan, Tainan 700, Taiwan
| | - Hsien-An Pan
- An-An Women and Children Clinic, Tainan 704, Taiwan
| | - Chia-Ning Chang
- Department of Biological Sciences and Technology, National University of Tainan, Tainan 700, Taiwan
| | - Yu-Sheng Cheng
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Wen-Tsan Chang
- Department of Surgery, Division of General and Digestive Surgery, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Chien-Chih Chiu
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
| | - Yen-Ni Teng
- Department of Biological Sciences and Technology, National University of Tainan, Tainan 700, Taiwan
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5
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Cannarella R, Shah R, Hamoda TAAAM, Boitrelle F, Saleh R, Gul M, Rambhatla A, Kavoussi P, Toprak T, Harraz AM, Ko E, Çeker G, Durairajanayagam D, Alkahidi N, Kuroda S, Crafa A, Henkel R, Salvio G, Hazir B, Darbandi M, Bendayan M, Darbandi S, Falcone M, Garrido N, Kosgi R, Sawaid Kaiyal R, Karna K, Phuoc NHV, Birowo P, Colpi GM, de la Rosette J, Pinggera GM, Nguyen Q, Zini A, Zohdy W, Singh R, Saini P, Glina S, Lin H, Mostafa T, Rojas-Cruz C, Arafa M, Calogero AE, Dimitriadis F, Kothari P, Karthikeyan VS, Okada K, Chiba K, Kadıoglu A, Altay B, Turunc T, Zilaitiene B, Gokalp F, Adamyan A, Katz D, Chung E, Mierzwa TC, Zylbersztejn DS, Paul GM, Sofikitis N, Sokolakis I, Malhotra V, Brodjonegoro SR, Adriansjah R, Tsujimura A, Amano T, Balercia G, Ziouziou I, Deswanto IA, Martinez M, Park HJ, Bakırcıoglu ME, Ceyhan E, Aydos K, Ramsay J, Minhas S, Al Hashimi M, Ghayda RA, Tadros N, Sindhwani P, Ho CC, Rachman RI, Rodriguez Pena M, Motawi A, Ponnusamy AK, Dipankar S, Amir A, Binsaleh S, Serefoglu EC, Banthia R, Khalafalla K, Basukarno A, Bac NH, Singla K, Ambar RF, Makarounis K, Priyadarshi S, Duarsa GWK, Atmoko W, Jindal S, Arianto E, Akhavizadegan H, El Bardisi H, Shoshany O, Busetto GM, Moussa M, Jamali M, Al-Marhoon MS, Ruzaev M, Farsi HMA, Mutambirwa S, Lee DS, Kulaksiz D, Cheng YS, Bouzouita A, Sarikaya S, Kandil H, Tsampoukas G, Farkouh A, Bowa K, Savira M, Mogharabian N, Le TV, Harjanggi M, Anh DT, Long TQT, Soebadi MA, Hakim L, Tanic M, Ari UC, Parikh FR, Calik G, KV V, Dorji G, Rezano A, Rajmil O, Tien DMB, Yuan Y, Lizarraga-Salas JF, Eze B, Ngoo KS, Lee J, Arslan U, Agarwal A. Does Varicocele Repair Improve Conventional Semen Parameters? A Meta-Analytic Study of Before-After Data. World J Mens Health 2024; 42:92-132. [PMID: 37382284 PMCID: PMC10782123 DOI: 10.5534/wjmh.230034] [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: 02/14/2023] [Accepted: 02/28/2023] [Indexed: 06/30/2023] Open
Abstract
PURPOSE The purpose of this meta-analysis is to study the impact of varicocele repair in the largest cohort of infertile males with clinical varicocele by including all available studies, with no language restrictions, comparing intra-person conventional semen parameters before and after the repair of varicoceles. MATERIALS AND METHODS The meta-analysis was performed according to PRISMA-P and MOOSE guidelines. A systematic search was performed in Scopus, PubMed, Cochrane, and Embase databases. Eligible studies were selected according to the PICOS model (Population: infertile male patients with clinical varicocele; Intervention: varicocele repair; Comparison: intra-person before-after varicocele repair; Outcome: conventional semen parameters; Study type: randomized controlled trials [RCTs], observational and case-control studies). RESULTS Out of 1,632 screened abstracts, 351 articles (23 RCTs, 292 observational, and 36 case-control studies) were included in the quantitative analysis. The before-and-after analysis showed significant improvements in all semen parameters after varicocele repair (except sperm vitality); semen volume: standardized mean difference (SMD) 0.203, 95% CI: 0.129-0.278; p<0.001; I²=83.62%, Egger's p=0.3329; sperm concentration: SMD 1.590, 95% CI: 1.474-1.706; p<0.001; I²=97.86%, Egger's p<0.0001; total sperm count: SMD 1.824, 95% CI: 1.526-2.121; p<0.001; I²=97.88%, Egger's p=0.0063; total motile sperm count: SMD 1.643, 95% CI: 1.318-1.968; p<0.001; I²=98.65%, Egger's p=0.0003; progressive sperm motility: SMD 1.845, 95% CI: 1.537%-2.153%; p<0.001; I²=98.97%, Egger's p<0.0001; total sperm motility: SMD 1.613, 95% CI 1.467%-1.759%; p<0.001; l2=97.98%, Egger's p<0.001; sperm morphology: SMD 1.066, 95% CI 0.992%-1.211%; p<0.001; I²=97.87%, Egger's p=0.1864. CONCLUSIONS The current meta-analysis is the largest to date using paired analysis on varicocele patients. In the current meta-analysis, almost all conventional semen parameters improved significantly following varicocele repair in infertile patients with clinical varicocele.
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Affiliation(s)
- Rossella Cannarella
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
- Glickman Urological & Kidney Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Rupin Shah
- Department of Urology, Lilavati Hospital and Research Centre, Mumbai, India
| | - Taha Abo-Almagd Abdel-Meguid Hamoda
- Department of Urology, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Urology, Faculty of Medicine, Minia University, Minia, Egypt
| | - Florence Boitrelle
- Department of Reproductive Biology, Fertility Preservation, Andrology, CECOS, Poissy Hospital, Poissy, France
- Department of Biology, Reproduction, Epigenetics, Environment and Development, Paris Saclay University, UVSQ, INRAE, BREED, Jouy-en-Josas, France
| | - Ramadan Saleh
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Sohag University, Sohag, Egypt
| | - Murat Gul
- Department of Urology, Selcuk University School of Medicine, Konya, Turkey
| | - Amarnath Rambhatla
- Department of Urology, Henry Ford Health System, Vattikuti Urology Institute, Detroit, MI, USA
| | - Parviz Kavoussi
- Department of Reproductive Urology, Austin Fertility & Reproductive Medicine/Westlake IVF, Austin, TX, USA
| | - Tuncay Toprak
- Department of Urology, Fatih Sultan Mehmet Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Ahmed M. Harraz
- Urology and Nephrology Center, Mansoura University, Mansoura, Egypt
- Department of Surgery, Urology Unit, Farwaniya Hospital, Farwaniya, Kuwait
- Department of Urology, Sabah Al Ahmad Urology Center, Kuwait City, Kuwait
| | - Edmund Ko
- Department of Urology, Loma Linda University Health, Loma Linda, CA, USA
| | - Gökhan Çeker
- Department of Urology, Başakşehir Cam and Sakura City Hospital, Istanbul, Turkey
| | - Damayanthi Durairajanayagam
- Department of Physiology, Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Selangor, Malaysia
| | - Noora Alkahidi
- Department of Internal Medicine, Trinity Health/Mercy Health, Muskegon, MI, USA
| | - Shinnosuke Kuroda
- Glickman Urological & Kidney Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
- Department of Urology, Reproduction Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Andrea Crafa
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Ralf Henkel
- Department of Metabolism, Digestion and Reproduction, Imperial College London, London, UK
- Department of Medical Bioscience, University of the Western Cape, Bellville, South Africa
| | - Gianmaria Salvio
- Department of Endocrinology, Polytechnic University of Marche, Ancona, Italy
| | - Berk Hazir
- Reproductive Medicine, Clinical Research Centre, Lund University, Malmö, Sweden
| | - Mahsa Darbandi
- Fetal Health Research Center, Hope Generation Foundation, Tehran, Iran
- Gene Therapy and Regenerative Medicine Research Center, Hope Generation Foundation, Tehran, Iran
| | - Marion Bendayan
- Department of Reproductive Biology, Fertility Preservation, Andrology, CECOS, Poissy Hospital, Poissy, France
- Department of Biology, Reproduction, Epigenetics, Environment and Development, Paris Saclay University, UVSQ, INRAE, BREED, Jouy-en-Josas, France
| | - Sara Darbandi
- Fetal Health Research Center, Hope Generation Foundation, Tehran, Iran
- Gene Therapy and Regenerative Medicine Research Center, Hope Generation Foundation, Tehran, Iran
| | - Marco Falcone
- Department of Urology, Molinette Hospital, A.O.U. Città della Salute e della Scienza, University of Turin, Torino, Italy
| | - Nicolas Garrido
- IVIRMA Global Research Alliance, IVI Foundation, Instituto de Investigación Sanitaria La Fe (IIS La Fe), Valencia, Spain
| | - Raghavender Kosgi
- Department of Urology, Andrology and Renal Transplant, AIG Hospitals, Hyderabad, India
| | - Raneen Sawaid Kaiyal
- Glickman Urological & Kidney Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Keshab Karna
- Department of Molecular Cell and Cancer Biology, University of Massachusetts Medical School, Worcester, MA, USA
| | - Nguyen Ho Vinh Phuoc
- Department of Andrology, Binh Dan Hospital, Ho Chi Minh, Vietnam
- Department of Urology and Andrology, Pham Ngoc Thach University of Medicine, Ho Chi Minh, Vietnam
| | - Ponco Birowo
- Department of Urology, Cipto Mangunkusumo Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Giovanni M. Colpi
- Andrology and IVF Center, Next Fertility Procrea, Lugano, Switzerland
| | - Jean de la Rosette
- Department of Urology, Istanbul Medipol Mega University Hospital, Istanbul, Turkey
| | | | - Quang Nguyen
- Center for Andrology and Sexual Medicine, Viet Duc University Hospital, Hanoi, Vietnam
- Department of Urology, Andrology and Sexual Medicine, University of Medicine and Pharmacy, Vietnam National University, Hanoi, Vietnam
| | - Armand Zini
- Division of Urology, Department of Surgery, McGill University, Montreal, QC, Canada
| | - Wael Zohdy
- Department of Andrology, Sexology & STIs, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Rajender Singh
- Central Drug Research Institute, Male Reproductive Health Research Laboratory, Lucknow, Uttar Pradesh, India
| | - Pallavi Saini
- Division of Endocrinology, Central Drug Research Institute, Lucknow, India
| | - Sidney Glina
- Division of Urology, Centro Universitario FMABC, Santo André, Brazil
| | - Haocheng Lin
- Department of Urology, Peking University Third Hospital, Peking University, Beijing, China
| | - Taymour Mostafa
- Department of Andrology, Sexology & STIs, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Cesar Rojas-Cruz
- Department of Urology, University Hospital of Rostock, Rostock, Germany
| | - Mohamed Arafa
- Department of Andrology, Sexology & STIs, Faculty of Medicine, Cairo University, Cairo, Egypt
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
- Department of Urology, Hamad Medical Corporation, Doha, Qatar
- Department of Urology, Weill Cornell Medical-Qatar, Doha, Qatar
| | - Aldo E. Calogero
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Fotios Dimitriadis
- Department of Urology, Aristotle University School of Medicine, Thessaloniki, Greece
| | - Priyank Kothari
- Department of Urology, Topiwala National Medical College, B.Y.L Nair Ch Hospital, Mumbai, India
| | | | - Keisuke Okada
- Department of Urology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Koji Chiba
- Department of Urology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Ates Kadıoglu
- Department of Urology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Baris Altay
- Department of Urology, Ege University, Izmir, Turkey
| | | | - Birute Zilaitiene
- Institute of Endocrinology, Lithuanian University of Health Sciences, Kaunas, Lithuania, Turkey
| | - Fatih Gokalp
- Department of Urology, Faculty of Medicine, Hatay Mustafa Kemal University, Antakya, Hatay, Turkey
| | - Aram Adamyan
- Department of Urology, Astghik Medical Center, Yerevan, Armenia
| | - Darren Katz
- Men’s Health Melbourne, Victoria, Australia
- Department of Surgery, Western Precinct, University of Melbourne, Victoria, Australia
- Department of Urology, Western Health, Victoria, Australia
| | - Eric Chung
- Department of Urology, Princess Alexandra Hospital, University of Queensland, Brisbane, Australia
| | | | | | - Gustavo Marquesine Paul
- Department of Clinical Surgery, Health Sciences Sector of the Federal University of Parana (UFPR), Curitiba, Paraná, Brazil
| | - Nikolaos Sofikitis
- Department of Urology, Ioannina University School of Medicine, Ioannina, Greece
| | - Ioannis Sokolakis
- 2nd Department of Urology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Sakti Ronggowardhana Brodjonegoro
- Division of Urology, Department of Surgery, Prof. Dr. Sardjito Hospital, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Ricky Adriansjah
- Department of Urology, Hasan Sadikin Hospital, Medical Faculty of Padjadjaran University, Bandung, Indonesia
| | - Akira Tsujimura
- Department of Urology, Juntendo University Urayasu Hospital, Chiba, Japan
| | - Toshiyasu Amano
- Department of Urology, Nagano Red Cross Hospital, Nagano, Japan
| | - Giancarlo Balercia
- Department of Endocrinology, Polytechnic University of Marche, Ancona, Italy
| | - Imad Ziouziou
- Department of Urology, College of Medicine and Pharmacy, Ibn Zohr University, Agadir, Morocco
| | | | - Marlon Martinez
- Section of Urology, Department of Surgery, University of Santo Tomas Hospital, Manila, Philippines
| | - Hyun Jun Park
- Department of Urology, Pusan National University School of Medicine, Busan, Korea
- Medical Research Institute of Pusan National University Hospital, Busan, Korea
| | | | - Erman Ceyhan
- Department of Urology, Baskent University Faculty of Medicine, Ankara, Turkey
| | - Kaan Aydos
- Department of Urology, Ankara University School of Medicine, Ankara, Turkey
| | - Jonathan Ramsay
- Department of Andrology, Hammersmith Hospital, Imperial, London, UK
| | - Suks Minhas
- Department of Urology, Imperial Healthcare NHS Trust, Charing Cross Hospital, London, UK
| | - Manaf Al Hashimi
- Department of Urology, Burjeel Hospital, Abu Dhabi, UAE
- Clinical Urology, College of Medicine and Health Sciences, Khalifa University, Abu Dhabi, UAE
| | - Ramy Abou Ghayda
- Institute of Urology, University Hospitals, Case Western Reserve University, Cleveland, OH, USA
| | - Nicholas Tadros
- Division of Urology, Southern Illinois University School of Medicine, Springfield, IL, USA
| | - Puneet Sindhwani
- Department of Urology, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Christopher C.K. Ho
- Department of Surgery, School of Medicine, Taylor’s University, Subang Jaya, Selangor, Malaysia
| | - Rinaldo Indra Rachman
- Department of Urology, Cipto Mangunkusumo Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Marcelo Rodriguez Pena
- Instituto de Ginecología y Fertilidad (IFER) y Universidad Barcelo, Buenos Aires, Argentina
| | - Ahmad Motawi
- Department of Andrology, Sexology & STIs, Faculty of Medicine, Cairo University, Cairo, Egypt
| | | | - Satish Dipankar
- Department of Physiology, All India Institute of Medical Sciences Mangalagiri, Mangalagiri, India
| | - Azwar Amir
- Department of Urology, Dr Wahidin Sudirohusodo Hospital, Makassar, Indonesia
| | - Saleh Binsaleh
- Division of Urology, Department of Surgery, Faculty of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Ege Can Serefoglu
- Department of Urology, Biruni University School of Medicine, Istanbul, Turkey
| | - Ravi Banthia
- Department of Urology, Western General Hospital, Edinburgh, UK
| | - Kareim Khalafalla
- Department of Urology, Hamad Medical Corporation, Doha, Qatar
- Urology Department, University of Texas McGovern Medical School, Houston, TX, USA
- Department of Urology, MD Anderson Cancer Center, Houston, TX, USA
| | - Ari Basukarno
- Department of Urology, Dr. Dradjat Hospital, Serang, Indonesia
| | - Nguyen Hoai Bac
- Department of Andrology and Sexual Medicine, Hanoi Medical University’s Hospital, Hanoi, Vietnam
| | | | - Rafael F. Ambar
- Division of Urology, Centro Universitario FMABC, Santo André, Brazil
- Andrology Department at Ideia Fertil Institute, Santo Andre, São Paulo, Brazil
| | | | - Shivam Priyadarshi
- Department of Urology, Sawai Man Singh Medical College and Hospital, Jaipur, Rajasthan, India
| | - Gede Wirya Kusuma Duarsa
- Department of Urology, Prof. Dr. I.G.N.G Ngoerah General Hospital, Faculty of Medicine, Universitas Udayana, Bali, Indonesia
| | - Widi Atmoko
- Department of Urology, Cipto Mangunkusumo Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Sunil Jindal
- Department of Andrology & Reproductive Medicine, Jindal Hospital & Fertility Center, Meerut, India
| | - Eko Arianto
- Department of Urology, Prof R.D. Kandou Hospital, Manado, Indonesia
| | | | - Haitham El Bardisi
- Department of Urology, Hamad Medical Corporation, Doha, Qatar
- Department of Urology, Weill Cornell Medical-Qatar, Doha, Qatar
| | - Ohad Shoshany
- Department of Urology, University of Illinois at Chicago, Chicago, IL, USA
| | - Gian Maria Busetto
- Department of Urology and Renal Transplantation, Univeristy of Foggia, Foggia, Italy
| | - Mohamad Moussa
- Department of Urology, Lebanese University, Beirut, Lebanon
| | - Mounir Jamali
- Department of Urology, Military Teaching Hospital, Rabat, Morocco
| | | | | | - Hasan M. A. Farsi
- Department of Urology, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Shingai Mutambirwa
- Department of Urology, Dr. George Mukhari Academic Hospital, Sefako Makgatho Health Science University, Medunsa, Ga-Rankuwa, South Africa
| | - Dong Sup Lee
- Department of Urology, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, Korea
| | - Deniz Kulaksiz
- Department of Obstetrics and Gynecology, University of Health Sciences, Kanuni Training and Research Hospital, Trabzon, Turkey
| | - Yu-Sheng Cheng
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | | | - Selcuk Sarikaya
- Department of Urology, Gulhane Research and Training Hospital, University of Health Sciences, Ankara, Turkey
| | | | | | | | - Kasonde Bowa
- Department of Urology, School of Medicine and Health Sciences, University of Lusaka, Lusaka, Zambia
| | - Missy Savira
- Department of Urology, Cipto Mangunkusumo Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Nasser Mogharabian
- Sexual Health and Fertility Research Center, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Tan V. Le
- Department of Andrology, Binh Dan Hospital, Ho Chi Minh, Vietnam
- Department of Urology and Andrology, Pham Ngoc Thach University of Medicine, Ho Chi Minh, Vietnam
| | | | - Dang Tuan Anh
- Tam Anh IVF Center, Tam Anh General Hospital, Hanoi, Vietnam
| | - Tran Quang Tien Long
- Department of Obstetrics and Gynecology, Hanoi Obstetric and Gynecology Hospital, Hanoi, Vietnam
| | - Mohammad Ayodhia Soebadi
- Department of Urology, Soetomo Hospital, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Lukman Hakim
- Department of Urology, Universitas Airlangga Teaching Hospital, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Marko Tanic
- Department of Urology, General Hospital, Cuprija, Serbia
| | - Umut Cagin Ari
- Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Kafkas University, Kars, Turkey
| | - Firuza R. Parikh
- FertilTree-Jaslok International Fertility Centre, Jaslok Hospital, Mumbai, Maharashtra, India
| | - Gokhan Calik
- Department of Urology, Istanbul Medipol Mega University Hospital, Istanbul, Turkey
| | - Vinod KV
- Cure & SK Hospital, Trivandrum, India
| | - Gyem Dorji
- Department of Anatomy, Khesar Gyalpo University of Medical Sciences of Bhutan, Thimphu, Bhutan
| | - Andri Rezano
- Andrology Study Program, Department of Biomedical Sciences, Faculty of Medicine, Universitas Airlangga, Surabaya, East Java, Indonesia
- Department of Biomedical Sciences, Faculty of Medicine, Universitas Padjadjaran, Sumedang, West Java, Indonesia
| | - Osvaldo Rajmil
- Department of Andrology, Fundacio Puigvert, Barcelona, Spain
| | - Dung Mai Ba Tien
- Department of Andrology, Binh Dan Hospital, Ho Chi Minh, Vietnam
| | - Yiming Yuan
- Department of Urology, Peking University Third Hospital, Peking University, Beijing, China
| | | | - Balantine Eze
- Department of Surgery, College of Medicine, Enugu State University of Science and Technology, Enugu, Nigeria
| | - Kay Seong Ngoo
- Urology Unit, Department of Surgery, Hospital Angkatan Tentera Tuanku Mizan, Kuala Lumpur, Malaysia
| | - Joe Lee
- Department of Urology, National University Hospital, Singapore
| | - Umut Arslan
- Department of Urology, Fatih Sultan Mehmet Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Ashok Agarwal
- Department of Urology, School of Medicine and Health Sciences, University of Lusaka, Lusaka, Zambia
- Cleveland Clinic, Cleveland, OH, USA
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6
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Cheng YS, Chen HY, Lin YC, Lin YS, Yeh YC, Yeh YH, Cheng YH, Lin YM, Weng HY, Lin TY, Lin SC. The MAEL expression in mitochondria of human spermatozoa and the association with asthenozoospermia. Andrology 2023; 11:1286-1294. [PMID: 36779514 DOI: 10.1111/andr.13408] [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: 10/07/2022] [Revised: 01/19/2023] [Accepted: 02/05/2023] [Indexed: 02/14/2023]
Abstract
PURPOSE The maelstrom spermatogenic transposon silencer (MAEL) function in postmeiotic germ cells remains unclear, and its protein localization in human testis and spermatozoa awaits determination. This study aims to clarify the MAEL expression in human spermatogenesis and to explore its role in sperm function. MATERIALS AND METHODS Twenty-seven asthenozoospermic men, 40 normozoospermic controls, and three obstructive azoospermic men were enrolled. The transcripts of MAEL in the seminiferous epithelium and MAEL downstream targets were identified by bioinformatics analysis. MAEL protein expression in human testis and ejaculated sperms were examined by immunohistochemical and immunogold staining, respectively. The roles of MAEL in mitochondria function were investigated by siRNA knockdown in human H358 cells. The association between MAEL protein levels and clinical sperm features was evaluated. RESULTS Abundant MAEL was expressed in spermatid and spermatozoa of the human testis. Remarkably, MAEL was located in the mitochondria of ejaculated sperm, and bioinformatics analysis identified GPX4 and UBL4B as MAEL's downstream targets. Knockdown of MAEL sabotaged mitochondria function and reduced adenosine triphosphate (ATP) production in H358 cells. MAEL, GPX4, and UBL4B expression levels were significantly decreased in asthenozoospermic sperms than in controls. The MAEL protein levels were positively correlated with GPX4 and UBL4B in human sperm. Total motile sperm count (TMSC) was positively correlated with protein levels of MAEL, GPX4, and UBL4B in ejaculated sperms. CONCLUSIONS We highlight prominent MAEL expression in the intratesticular spermatid and the mitochondria of ejaculated spermatozoa. MAEL directly binds to GPX4 and UBL4B, and loss of MAEL induces mitochondrial dysfunction. MAEL-mitochondrial function-motility relationship might advance our understanding of the causes of asthenozoospermia.
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Affiliation(s)
- Yu-Sheng Cheng
- Department of Urology, National Cheng Kung University Hospital, College of, Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hsing-Yi Chen
- Department of Urology, National Cheng Kung University Hospital, College of, Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Chiao Lin
- Department of Urology, National Cheng Kung University Hospital, College of, Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Syuan Lin
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Chun Yeh
- International Center for Wound Repair and Regeneration, National Cheng Kung University, Tainan, Taiwan
- Department of Physiology and Pharmacology, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yi-Hsuan Yeh
- Department of Physiology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yung-Hsuan Cheng
- Department of Urology, National Cheng Kung University Hospital, College of, Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yung-Ming Lin
- Department of Urology, National Cheng Kung University Hospital, College of, Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Han-Yu Weng
- Department of Urology, National Cheng Kung University Hospital, College of, Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Tsung-Yen Lin
- Department of Surgery, Division of Urology, National Cheng Kung University Hospital Dou-Liou Branch, Yunlin, Taiwan
| | - Shih-Chieh Lin
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Physiology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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7
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Abstract
Clinical infertility is the inability of a couple to conceive after 12 months of trying. Male factors are estimated to contribute to 30-50% of cases of infertility. Infertility or reduced fertility can result from testicular dysfunction, endocrinopathies, lifestyle factors (such as tobacco and obesity), congenital anatomical factors, gonadotoxic exposures and ageing, among others. The evaluation of male infertility includes detailed history taking, focused physical examination and selective laboratory testing, including semen analysis. Treatments include lifestyle optimization, empirical or targeted medical therapy as well as surgical therapies that lead to measurable improvement in fertility. Although male infertility is recognized as a disease with effects on quality of life for both members of the infertile couple, fewer data exist on specific quantification and impact compared with other health-related conditions.
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Affiliation(s)
- Michael L Eisenberg
- Department of Urology, Stanford University School of Medicine, Stanford, CA, USA.
- Department of Obstetrics & Gynecology, Stanford University School of Medicine, Stanford, CA, USA.
| | - Sandro C Esteves
- ANDROFERT Andrology and Human Reproduction Clinic, Campinas, Brazil
- Division of Urology, Department of Surgery, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, Brazil
| | - Dolores J Lamb
- Center for Reproductive Genomics, Weill Cornell Medical College, New York, NY, USA
- Englander Institute for Precision Medicine, Weill Cornell Medical College, New York, NY, USA
- Department of Urology, Weill Cornell Medical College, New York, NY, USA
| | - James M Hotaling
- Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA
| | | | - Kathleen Hwang
- University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Yu-Sheng Cheng
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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8
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Lin TY, Su CC, Chang YC, Chen IH, Ou CH, Cheng YS. The sufficient multidisciplinary specialists under a government-led health care system associated with the downward mortality trend of Fournier's gangrene in Taiwan. Int J Urol 2023; 30:182-189. [PMID: 36305805 DOI: 10.1111/iju.15081] [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: 05/12/2022] [Accepted: 10/03/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVES To explore the trends in Fournier's gangrene (FG) incidence and mortality rate in Taiwan and to investigate the contributing factors to such changes. METHODS Between 2002 and 2016, hospitalized FG patients who underwent subsequent surgical intervention were included in this retrospective study. Incidence, outcomes, age-adjusted Charlson Comorbidity Index (ACCI), hospitalization cost, surgical timing, and the number of multidisciplinary specialists involved in the first-line management of FG in each year were collected. Simple linear regression and Pearson correlation coefficient (r) were used for the subsequent analysis. RESULTS The national cohort enrolled 2183 FG patients from 2002 to 2016 in Taiwan. The age-standardized incidence rate of FG was between 0.4 and 0.8 per 100 000 population, and overall mortality was 7.8% in these 15 years. We illustrated the downward trendline of FG mortality with a 0.62 coefficient of determination. The mortality of FG patients who underwent surgery within 24 h and after 24 h were found to be 8.3 ± 3.9% and 14.6 ± 25.2%, respectively (p = 0.02). The numbers of urologists, anesthesiologists, emergency doctors, and physicians per 100 000 population had a strong negative linear correlation with FG mortality (r = 0.8, p < 0.001). ACCI score had a moderate linear relationship with FG mortality (r = 0.57, p = 0.027). The hospitalization cost showed a weak linear correlation with FG mortality (r = -0.03, p = 0.92). CONCLUSIONS We demonstrated the downward trend of the FG mortality rate in Taiwan from 2002 to 2016. Besides underlying comorbidities and surgical timing, sufficient multidisciplinary specialists are essential for the survival benefit of FG patients in Taiwan experience.
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Affiliation(s)
- Tsung-Yen Lin
- Division of Urology, Department of Surgery, Dou-Liou Branch, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Yunlin, Taiwan
| | - Chien-Chou Su
- Clinical Innovation and Research Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Ching Chang
- School of Pharmacy, Institute of Clinical Pharmacy and Pharmaceutical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Health Outcome Research Center, National Cheng Kung University, Tainan, Taiwan
| | - I-Hung Chen
- Division of Urology, Department of Surgery, Dou-Liou Branch, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Yunlin, Taiwan
| | - Chien-Hui Ou
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Sheng Cheng
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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9
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Belladelli F, Chen T, Basran S, Greenberg DR, Del Giudice F, Mulloy E, Chen CH, Cheng YS, Salonia A, Eisenberg ML. The Association between Monthly, Yearly, and Lifetime Cannabis Use, and Semen Parameters in Asian-American Men. World J Mens Health 2022:40.e61. [PMID: 36047080 DOI: 10.5534/wjmh.220106] [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: 05/23/2022] [Revised: 07/18/2022] [Accepted: 07/20/2022] [Indexed: 11/15/2022] Open
Abstract
PURPOSE Medicinal and recreational cannabis use has grown exponentially, however, its effect on testicular function and spermatogenesis remains uncertain. The aim of this study was to evaluate the association between cannabis use and semen parameters in a cohort of Asian-American men with unknown fertility. MATERIALS AND METHODS Asian men were recruited to complete an online survey and submit a semen sample. Semen analysis, demographic data, lifestyle factors, and cannabis use habits were collected. Linear and logistic regression analyses were used to determine. RESULTS Among the 112 men included in this study, 51 used cannabis at least once in their lifetime, 30 men used cannabis at least once in the last 12 months, and 26 men used cannabis at least once in the last 30 days. Adjusted linear regression analyses identified an association between cannabis use in the previous 30 days and worse sperm morphology (β: -0.45, p=0.025) and sperm motility (β: -1.64, p=0.016). However, when stratifying by subfertile semen quality (i.e., WHO criteria), no association was identified between semen quality and cannabis use. Lower sperm morphology and motility are partially associated with recent cannabis use, while all other semen parameters are not. CONCLUSIONS We did not observe any consistent associations between cannabis use on any semen parameters in Asian-American men. Further studies within the field are needed to explore racial and ethnic differences in semen quality and lifestyle factors.
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Affiliation(s)
- Federico Belladelli
- Division of Experimental Oncology/Unit of Urology; URI; IRCCS Ospedale San Raffaele, Milan, Italy.,School of Medicine, University Vita-Salute San Raffaele, Milan, Italy.,Department of Urology, School of Medicine, Stanford University, Stanford, CA, USA
| | - Tony Chen
- Department of Urology, School of Medicine, Stanford University, Stanford, CA, USA
| | - Satvir Basran
- Department of Urology, School of Medicine, Stanford University, Stanford, CA, USA
| | - Daniel R Greenberg
- Department of Urology, School of Medicine, Stanford University, Stanford, CA, USA
| | - Francesco Del Giudice
- Department of Urology, School of Medicine, Stanford University, Stanford, CA, USA.,Department of Urology, University Sapienza, Rome, Italy
| | - Evan Mulloy
- Department of Urology, School of Medicine, Stanford University, Stanford, CA, USA
| | - Che-Hong Chen
- Department of Chemical and Systems Biology, School of Medicine, Stanford University, Stanford, CA, USA
| | - Yu-Sheng Cheng
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Andrea Salonia
- Division of Experimental Oncology/Unit of Urology; URI; IRCCS Ospedale San Raffaele, Milan, Italy.,School of Medicine, University Vita-Salute San Raffaele, Milan, Italy
| | - Michael L Eisenberg
- Department of Urology, School of Medicine, Stanford University, Stanford, CA, USA.
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10
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Chang HW, Ma HI, Wu YS, Lee MC, Chung-Yueh Yuan E, Huang SJ, Cheng YS, Wu MH, Tu LH, Chan JCC. Site specific NMR characterization of abeta-40 oligomers cross seeded by abeta-42 oligomers. Chem Sci 2022; 13:8526-8535. [PMID: 35974768 PMCID: PMC9337746 DOI: 10.1039/d2sc01555b] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 06/12/2022] [Indexed: 12/18/2022] Open
Abstract
Extracellular accumulation of β amyloid peptides of 40 (Aβ40) and 42 residues (Aβ42) has been considered as one of the hallmarks in the pathology of Alzheimer's disease. In this work, we are able to prepare oligomeric aggregates of Aβ with uniform size and monomorphic structure. Our experimental design is to incubate Aβ peptides in reverse micelles (RMs) so that the peptides could aggregate only through a single nucleation process and the size of the oligomers is confined by the physical dimension of the reverse micelles. The hence obtained Aβ oligomers (AβOs) are 23 nm in diameter and they belong to the category of high molecular-weight (MW) oligomers. The solid-state NMR data revealed that Aβ40Os adopt the structural motif of β-loop-β but the chemical shifts manifested that they may be structurally different from low-MW AβOs and mature fibrils. From the thioflavin-T results, we found that high-MW Aβ42Os can accelerate the fibrillization of Aβ40 monomers. Our protocol allows performing cross-seeding experiments among oligomeric species. By comparing the chemical shifts of Aβ40Os cross seeded by Aβ42Os and those of Aβ40Os prepared in the absence of Aβ42Os, we observed that the chemical states of E11, K16, and E22 were altered, whereas the backbone conformation of the β-sheet region near the C-terminus was structurally invariant. The use of reverse micelles allows hitherto the most detailed characterization of the structural variability of Aβ40Os. Extracellular accumulation of β amyloid peptides of 40 (Aβ40) and 42 residues (Aβ42) has been considered as one of the hallmarks in the pathology of Alzheimer's disease.![]()
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Affiliation(s)
- Han-Wen Chang
- Department of Chemistry, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Ho-I. Ma
- Department of Chemistry, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Yi-Shan Wu
- Department of Chemistry, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Ming-Che Lee
- Department of Chemistry, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Eric Chung-Yueh Yuan
- Department of Chemistry, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Shing-Jong Huang
- Instrumentation Center, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Yu-Sheng Cheng
- Department of Chemistry, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Meng-Hsin Wu
- Department of Chemistry, National Taiwan Normal University, No. 88, Section 4, Ting-Chow Road, Taipei, 11677, Taiwan
| | - Ling-Hsien Tu
- Department of Chemistry, National Taiwan Normal University, No. 88, Section 4, Ting-Chow Road, Taipei, 11677, Taiwan
| | - Jerry Chun Chung Chan
- Department of Chemistry, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei, 10617, Taiwan
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11
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Ou HT, Cheng YS, Lin HT, Wu MH, Wu WL, Tsai LC, Chen YY, Hung KH, Wu PH, Chen TS. Incorporating sperm DNA fragmentation index with computer-assisted semen morphokinematic parameters as a better window to male fertility. CHINESE J PHYSIOL 2022; 65:143-150. [DOI: 10.4103/cjp.cjp_12_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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12
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Weng HY, Lin TY, Lin YM, Cheng YS. The fertility preservation decision-making and testicular sperm retrieval outcome in older adolescents with nonmosaic Klinefelter syndrome and azoospermia. J Chin Med Assoc 2021; 84:1023-1027. [PMID: 34393187 DOI: 10.1097/jcma.0000000000000603] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND This study aims to analyze the fertility preservation decision-making and the sperm retrieval rate (SRR) in older adolescents (age 15-19 years) with nonmosaic Klinefelter syndrome (KS) and azoospermia in a male reproductive clinic, and to determine the accumulated SRR in older adolescents by literature review. METHODS Older adolescents with nonmosaic KS and azoospermia referred for hypogonadism and fertility concerns were enrolled. Reproductive counseling and fertility preservation options were offered to patients/parents. The acceptability and the reasons affecting the reproductive decision-making were analyzed. Patients/parents who agreed on fertility preservation received microdissection testicular sperm extraction (mTESE) and cryopreservation. A comprehensive literature review regarding the SRRs in older adolescents with KS was conducted. RESULTS A total of eight older adolescents were enrolled. After fertility preservation counseling, three patients/parents (37.5%) agreed to receive mTESE, and spermatozoa were successfully retrieved in two. "Lack of interest" and "inconsistent sperm retrieval result" were the main reasons for refusal. A total of 89 older adolescents from nine articles, and ours were collected for SRR analysis. Most of the reports had a limited number of cases, and none of them described the acceptance rate of sperm retrieval in adolescents. Forty-three out of 89 older adolescents (48.3%) had successful sperm retrieval, and there was no significant difference in the SRR between the mTESE and conventional TESE. CONCLUSION Successful testicular sperm retrieval in older adolescents with KS is not superior to those reported in adults. Adolescents and their parents should undergo a detailed reproductive consultation process and shared decision-making discussion before considering testicular sperm retrieval.
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Affiliation(s)
- Han-Yu Weng
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC
| | - Tsung-Yen Lin
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC
| | - Yung-Ming Lin
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC
- Department of Obstetrics and Gynaecology, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Yu-Sheng Cheng
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC
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13
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Chen BJ, Li J, Wang JD, Cheng YS, Xu YN, Xue M. [Parotid nuclear protein in testis midline carcinoma: a case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021; 56:510-513. [PMID: 34011009 DOI: 10.3760/cma.j.cn115330-20201103-00853] [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)
- B J Chen
- Department of Head and Neck Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - J Li
- Department of Oral Pathology, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - J D Wang
- Department of Head and Neck Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Y S Cheng
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Traditional Chinese Medicine-Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200085, China
| | - Y N Xu
- Department of Head and Neck Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - M Xue
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Traditional Chinese Medicine-Integrated Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200085, China
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Liao XB, Cheng YS, Liu ZH, Shen LL, Zhao L, Chen C, Li F, Zhang XJ. Performance of BAC for DBPs precursors' removal for one year with micro-polluted lake water in East-China. Environ Technol 2020; 41:3554-3561. [PMID: 31072242 DOI: 10.1080/09593330.2019.1615132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 04/27/2019] [Indexed: 06/09/2023]
Abstract
Effectiveness of biological activated carbon (BAC) filter in removing disinfection byproducts (DBPs) precursors of micro-polluted lake water for one year was conducted. The formation potential (FP) of DBPs (trihalomethanes (THMs), haloacetic acids (HAAs) and Nitrosamines (NAs)), dissolved organic carbon (DOC), molecular weight (MW) distribution and excitation emission matrix fluorescence (EEM) of dissolved organic material (DOM) in the influent and effluent of BAC were determined. The results indicated that the removal efficiency (RE) of DOC ranged from 42.9-28.3%. Neither virgin GAC nor long-term operated BAC could efficiently dispose of THMs and HAAs precursors (RE from 35.2-18.8%, from 42 to 8.4%, respectively), however, BAC still showed good ability in removal of NAs precursors after a year operation, of which RE just dropped from 81.7-69.6%. There was strong correlation between RE of NAs precursors and DOC with small MW (<0.5 kDa). The removal of HAAs precursors showed relatively close relation to aromatic protein-like components and soluble microbial pollutants (SMPs). Weak direct relationship was found between the water quality parameters and THMs precursors.
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Affiliation(s)
- X B Liao
- Institute of Municipal and Environmental Engineering, College of Civil Engineering, Huaqiao University, Xiamen, People's Republic of China
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, People's Republic of China
| | - Y S Cheng
- Institute of Municipal and Environmental Engineering, College of Civil Engineering, Huaqiao University, Xiamen, People's Republic of China
| | - Z H Liu
- Institute of Municipal and Environmental Engineering, College of Civil Engineering, Huaqiao University, Xiamen, People's Republic of China
| | - L L Shen
- Institute of Municipal and Environmental Engineering, College of Civil Engineering, Huaqiao University, Xiamen, People's Republic of China
| | - L Zhao
- Institute of Municipal and Environmental Engineering, College of Civil Engineering, Huaqiao University, Xiamen, People's Republic of China
| | - C Chen
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, People's Republic of China
| | - F Li
- Institute of Municipal and Environmental Engineering, College of Civil Engineering, Huaqiao University, Xiamen, People's Republic of China
| | - X J Zhang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, People's Republic of China
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Yang C, Qian J, Jia BL, Yu G, Cheng YS, Wang Y. [Application of hand-sewn anastomosis in the reconstruction of total laparoscopic left colon cancer radical resection]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:499-502. [PMID: 32842431 DOI: 10.3760/cma.j.cn.441530-20190711-00270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Lai CH, Huang LC, Holby SN, Lai YJ, Su PF, Cheng YS, Shyr Y, Hsi RS. Kidney Stone History and Adverse Outcomes After Percutaneous Coronary Intervention. Urology 2020; 136:75-81. [PMID: 31697954 PMCID: PMC7008077 DOI: 10.1016/j.urology.2019.10.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 10/02/2019] [Accepted: 10/15/2019] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To determine whether kidney stone history is associated with adverse outcomes after percutaneous coronary intervention (PCI). Kidney stone formers have an increased risk of developing coronary artery disease; however, whether these patients have worse cardiac outcomes is unknown. MATERIALS AND METHODS We identified adult patients who underwent first-time PCI in Vanderbilt University Medical Center (VUMC) Synthetic Derivative from 2008 to 2016 (n = 11,289) and in a nationwide database of Taiwan (NHIRD) from 2005 to 2012 (n = 155,762). Odds ratios (ORs) of 30-day in-hospital mortality and hazard ratios (HRs) of 1-year and 3-year adverse outcomes associated with kidney stone history were estimated using a propensity score approach. RESULTS Overall, 294 and 12,286 stone formers undergoing PCI were identified in the VUMC and NHIRD, respectively. After matching, stone formers at VUMC were at higher risks of 30-day in-hospital mortality (OR 2.79, 95% CI 1.15-6.69) and 1-year (HR 1.59, 95% CI 1.13-2.24) and 3-year (HR 1.36, 95% CI 1.02-1.81) myocardial infarction. In the NHIRD, kidney stone history was associated with 1-year (HR 1.12, 95% CI 1.03-1.21) and 3-year (HR 1.14, 95% CI 1.06-1.22) myocardial infarction. In a sensitivity analysis, stone formers undergoing kidney stone surgery were marginally associated with 30-day in-hospital mortality (OR 1.21, 95% CI 0.99-1.48) and were associated with 3-year myocardial infarction (HR 1.13, 95% CI 1.02-1.25). CONCLUSION Kidney stone history is associated with poorer cardiac outcomes after PCI. Improving secondary cardiac prevention strategies after PCI may be necessary for patients with a history of kidney stone disease.
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Affiliation(s)
- Chao-Han Lai
- Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN; Center for Quantitative Sciences, Vanderbilt University Medical Center, Nashville, TN
| | - Li-Ching Huang
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN; Center for Quantitative Sciences, Vanderbilt University Medical Center, Nashville, TN
| | - S Neil Holby
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Ying-Ju Lai
- Department of Statistics, National Cheng Kung University, Tainan, Taiwan
| | - Pei-Fang Su
- Department of Statistics, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Sheng Cheng
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu Shyr
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN; Center for Quantitative Sciences, Vanderbilt University Medical Center, Nashville, TN
| | - Ryan S Hsi
- Department of Urology, Vanderbilt University Medical Center, Nashville, TN.
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Lin TY, Cheng IH, Ou CH, Tsai YS, Tong YC, Cheng HL, Yang WH, Lin YM, Cheng YS. Incorporating Simplified Fournier's Gangrene Severity Index with early surgical intervention can maximize survival in high-risk Fournier's gangrene patients. Int J Urol 2019; 26:737-743. [PMID: 31001902 DOI: 10.1111/iju.13989] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 11/16/2018] [Accepted: 03/25/2019] [Indexed: 12/17/2022]
Abstract
OBJECTIVES To determine the optimal surgical timing in high-risk patients with Fournier's gangrene by the Simplified Fournier's Gangrene Severity Index. METHODS From 1989 to 2018, 118 male patients diagnosed with Fournier's gangrene with complete medical records were retrospectively reviewed. Patients' demographics, laboratory parameters at initial diagnosis, Fournier's Gangrene Severity Index and Simplified Fournier's Gangrene Severity Index, and the time interval from emergency room arrival to surgical intervention were collected. The Fournier's gangrene patients were categorized into low-risk (Simplified Fournier's Gangrene Severity Index ≤2) and high-risk groups (Simplified Fournier's Gangrene Severity Index >2). Differences between the variables within the two groups were analyzed. The optimal surgical timing was analyzed with the receiver operating characteristic curve in high-risk Fournier's gangrene patients. RESULTS The overall mortality of 118 Fournier's gangrene patients was 14.4%. After risk stratification with the Simplified Fournier's Gangrene Severity Index scoring system, the mortality of low-risk and high-risk Fournier's gangrene patients was 1.3% and 41.0%, respectively. In the high-risk group, the time interval from emergency room arrival to surgical intervention was the only variable with a significant difference between survivors and non-survivors (P = 0.039). The optimal surgical timing was determined at 14.35 h, which allowed the highest sensitivity (0.688) and specificity (0.762) to affect mortality. The mortality was significantly lower in high-risk Fournier's gangrene patients with early surgical intervention compared with late intervention (23.8% vs 68.8%, P = 0.007). CONCLUSIONS The Simplified Fournier's Gangrene Severity Index is a quick and reliable screening tool for first-line physicians to identify high-risk patients with Fournier's gangrene (Simplified Fournier's Gangrene Severity Index >2) who have poor survival outcomes. We recommended early surgical intervention within 14.35 h to maximize the survival of high-risk Fournier's gangrene patients.
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Affiliation(s)
- Tsung-Yen Lin
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - I-Hung Cheng
- Division of Urology, Department of Surgery, National Cheng Kung University Hospital, Dou-Liou Branch, College of Medicine, National Cheng Kung University, Yunlin, Taiwan
| | - Chien-Hui Ou
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yuh-Shyan Tsai
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yat-Ching Tong
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hong-Lin Cheng
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wen-Horng Yang
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yung-Ming Lin
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Sheng Cheng
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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Cheng Y, Chen X, Ye L, Zhang Y, Liang J, Liu W, Zhou B, Zheng S, Huang Y, Chen G, Deng Y, Zhang Q, Yang Y. The Prognostic Significance of NEK2 in Hepatocellular Carcinoma: Evidence from a Meta-Analysis and Retrospective Cohort Study. Cell Physiol Biochem 2018; 51:2746-2759. [PMID: 30562736 DOI: 10.1159/000495966] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 12/04/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Numerous studies have shown that NIMA-related kinase 2 (NEK2) expression in hepatocellular carcinoma (HCC) tissue is associated with survival and clinicopathological features; however, the evidence remains inconclusive. Thus, we aimed to further explore the prognostic and clinicopathological significance of NEK2 expression in HCC using a two-part study consisting of a retrospective cohort study and a meta-analysis. METHODS In the cohort study, NEK2 expression in 206 HCC samples and adjacent normal liver tissues was detected by immunohistochemistry (IHC). Patients were divided into a high NEK2 expression group and a low NEK2 expression group by the median value of the immunohistochemical scores. The Kaplan-Meier method with the log-rank test was used to analyze survival outcomes in the two groups, and multivariate analysis based on Cox proportional hazard regression models was applied to identify independent prognostic factors. In the meta-analysis, eligible studies were searched in PubMed, EMBASE, Web of Science, and CNKI databases. STATA version 12.0 (Stata Corporation, College Station, TX) was used for statistical analyses. RESULTS The IHC results of our cohort study showed higher NEK2 expression in HCC tissues compared with adjacent normal liver tissues. Multivariate analysis revealed that high NEK2 expression was an independent risk factor for poor overall survival (OS) [hazard ratio (HR) = 1.763; 95% CI, 1.060-2.935; P = 0.029] and disease-free survival (DFS) [hazard ratio (HR) = 1.687; 95% CI, 1.102-2.584; P = 0.016] in HCC patients. A total of 11 studies with 1,698 patients were enrolled in the meta-analysis, consisting of 10 studies from the database search and our cohort study. The pooled results revealed that high NEK2 expression correlated closely with poor OS among HCC patients (HR = 1.47; 95% CI, 1.21-1.80; P < 0.01), and DFS/recurrence-free survival (RFS) (HR = 1.92; 95% CI, 1.41-2.63; P < 0.01). Additionally, our meta-analysis also showed that the proportion of HCC patients with high NEK2 expression was greater in the group with larger tumors (> 5 cm) than in the group with smaller tumors (≤ 5 cm) [odds ratio (OR) = 2.02; 95% CI, 1.13-3.64; P < 0.01). CONCLUSION Our study demonstrated that high NEK2 expression is a risk factor for poor survival in HCC patients. More prospective, homogeneous, and multiethnic studies are required to validate our findings.
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Affiliation(s)
- YuSheng Cheng
- Department of Hepatic Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China
| | - XiaoLong Chen
- Department of Hepatic Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China
| | - LinSen Ye
- Department of Hepatic Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China
| | - YinCai Zhang
- Department of Hepatic Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China
| | - Jing Liang
- Department of Pathology, Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wei Liu
- Department of Hepatic Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China
| | - BoXuan Zhou
- Department of Hepatic Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - ShiYang Zheng
- Department of Hepatic Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yiming Huang
- Department of Hepatic Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China
| | - GuiHua Chen
- Department of Hepatic Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China
| | - YiNan Deng
- Department of Hepatic Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China
| | - Qi Zhang
- Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou, China.,Cell-gene Therapy Translational Medicine Research Center, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yang Yang
- Department of Hepatic Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, .,Guangdong Provincial Key Laboratory of Liver Disease Research, Guangzhou,
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Cheng YS, Wee SK, Lin TY, Lin YM. MAEL promoter hypermethylation is associated with de-repression of LINE-1 in human hypospermatogenesis. Hum Reprod 2018; 32:2373-2381. [PMID: 29095993 DOI: 10.1093/humrep/dex329] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 10/12/2017] [Indexed: 01/01/2023] Open
Abstract
STUDY QUESTION Does the hypermethylation of the maelstrom spermatogenic transposon silencer (MAEL) promoter and subsequent de-repression of transposable elements represent one of the causes of spermatogenic failure in infertile men? SUMMARY ANSWER Experimental hypermethylation of a specific region (-131 to +177) of the MAEL promoter leads to decreased expression of MAEL with increased expression of the transposable element LINE-1 (L1) and in infertile men methylation of the MAEL promoter is associated with the severity of spermatogenic failure. WHAT IS KNOWN ALREADY MAEL induces transposon repression in the male germline and is required for mammalian meiotic progression and post-meiotic spermiogenesis. Patients with non-obstructive azoospermia (NOA), defined as no sperm in the ejaculate due to spermatogenic failure, and histopathologically proven hypospermatogenesis (HS) is not uncommon and its etiology is largely unknown. STUDY DESIGN, SIZE, DURATION Luciferase reporter assay and a targeted DNA methylation model were used to explore the effects of hypermethylation of MAEL promoter on gene expression. Germ cell-enriched testicular cells from infertile patients were used to determine the methylation levels of MAEL and expressions of MAEL and L1. PARTICIPANTS/MATERIALS, SETTING, METHODS Twenty-six patients with histopathologically proven NOA and HS and 12 patients with obstructive azoospermia and normal spermatogenesis (NS) were enrolled in this study. Demographic and clinical information were obtained. The severity of HS was determined by a spermatogenic scoring system. The methylation levels of 26 CpGs in the MAEL promoter was measured, and quantitative real-time RT-PCR was used to determine the expressional levels of MAEL and L1. MAIN RESULTS AND THE ROLE OF CHANCE Targeted DNA methylation of MAEL promoter suppressed MAEL expression and de-repressed L1 activity in vitro. Patients with HS had significantly higher mean methylation levels of 26 consecutive CpGs in the MAEL promoter, compared to patients with NS. The MAEL methylation levels were negatively correlated with MAEL transcript levels and higher methylation level of MAEL was associated with severe spermatogenic defect. L1 transcript level was significantly higher in patients with HS. No differences in age, frequency of testicular insults and genetic anomalies was noted between patients with high or low MAEL methylation levels. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION Because of the difficulty in the use of human germ cells for study, the in vitro targeted DNA methylation model was performed by using human NCI-H358 cells to explore the effects of MAEL methylation on transposable elements activity. Because the germ cell-enriched testicular cells isolated from a testicular sample were relatively few, the purity of cell populations was not determined. WIDER IMPLICATIONS OF THE FINDINGS Measurement of the methylation level of MAEL gene may be feasible to predict the severity of spermatogenic failure or the outcome of testicular sperm retrieval. STUDY FUNDING/COMPETING INTERESTS This work was supported through grants from the Ministry of Science and Technology of Taiwan (100-2314-B-006-017) and National Cheng Kung University Hospital, Tainan, Taiwan (NCKUH 20120266). The authors declare no conflicts of interest.
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Affiliation(s)
- Yu-Sheng Cheng
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Graduate Institute of Clinical Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Shi-Kae Wee
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Tsung-Yen Lin
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yung-Ming Lin
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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Lin YL, Cheng YS, Ho CI, Guo ZH, Huang SJ, Org ML, Oss A, Samoson A, Chan JCC. Preparation of fibril nuclei of beta-amyloid peptides in reverse micelles. Chem Commun (Camb) 2018; 54:10459-10462. [DOI: 10.1039/c8cc05882b] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Protofibrils of beta-amyloid peptides formed by fibril nuclei incubated in reverse micelles.
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Affiliation(s)
- Yen-Ling Lin
- Department of Chemistry, National Taiwan University
- Taipei
- Taiwan
| | - Yu-Sheng Cheng
- Department of Chemistry, National Taiwan University
- Taipei
- Taiwan
| | - Cheng-I Ho
- Department of Chemistry, National Taiwan University
- Taipei
- Taiwan
| | - Zhong-Hong Guo
- Department of Chemistry, National Taiwan University
- Taipei
- Taiwan
| | - Shing-Jong Huang
- Instrumentation Center
- National Taiwan University
- Taipei 10617
- Taiwan
| | - Mai-Liis Org
- Institute of Health Technologies, Tallinn University of Technology
- Tallinn
- Estonia
| | - Andres Oss
- Institute of Health Technologies, Tallinn University of Technology
- Tallinn
- Estonia
| | - Ago Samoson
- Institute of Health Technologies, Tallinn University of Technology
- Tallinn
- Estonia
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Cheng YS, Chao J, Zhu DD, Liu BC. 14 The mechanism of pkcΒ-p66shc-nadph oxidase pathway in high glucose induced-oxidative stress in renal tubular epithelial cells. J Investig Med 2017. [DOI: 10.1136/jim-2017-mebabstracts.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Cheng YS, Lu CW, Lin TY, Lin PY, Lin YM. Causes and Clinical Features of Infertile Men With Nonobstructive Azoospermia and Histopathologic Diagnosis of Hypospermatogenesis. Urology 2017; 105:62-68. [DOI: 10.1016/j.urology.2017.03.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 02/09/2017] [Accepted: 03/15/2017] [Indexed: 11/26/2022]
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Li HZ, Cheng YS, Wang XF, Pan W. Caution! The potential overestimated effect of prophylactic alpha-blockade for the prevention of urinary retention following primary inguinal hernia repair in a meta-analysis of randomized controlled trials. Am J Surg 2017; 216:391-392. [PMID: 28468725 DOI: 10.1016/j.amjsurg.2017.04.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 04/23/2017] [Indexed: 10/19/2022]
Affiliation(s)
- Hui-Zi Li
- Department of General Surgery, The Fourth Affiliated Hospital of NanChang University, 330006, Nanchang, Jiangxi, China.
| | - Yu-Sheng Cheng
- Department of Liver Transplantation, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, Guangdong, China
| | - Xiao-Feng Wang
- Department of General Surgery, The Fourth Affiliated Hospital of NanChang University, 330006, Nanchang, Jiangxi, China
| | - Wu Pan
- Department of General Surgery, The Fourth Affiliated Hospital of NanChang University, 330006, Nanchang, Jiangxi, China
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Lin TY, Ou CH, Yang WH, Tong YC, Cheng HL, Tsai YS, Cheng YS, Cheng IH, Lin YM. Early surgical intervention within 15 hours results in survival benefit in Patients with fournier's gangrene. Urological Science 2016. [DOI: 10.1016/j.urols.2016.05.116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Yao HY, Jiang JY, Cheng YS, Chen ZY, Her TH, Chang TH. Modal analysis and efficient coupling of TE₀₁ mode in small-core THz Bragg fibers. Opt Express 2015; 23:27266-27281. [PMID: 26480387 DOI: 10.1364/oe.23.027266] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We report a design of low-loss THz Bragg fibers with a core size on the order of wavelength that operates near the cutoff frequency of its TE01 mode. We also propose a broadband Y-type mode converter based on branched rectangular metallic waveguides to facilitate coupling between the TE01 mode of the Bragg fiber and the TEM mode in free space with 60% efficiency. Our fiber holds strong promise to facilitate beam-wave interaction in gyrotron for high-efficiency THz generation.
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Lin MJ, Chang SC, Lin TY, Cheng YS, Lee YP, Fan YK. Factors Affecting the Incidence of Angel Wing in White Roman Geese: Stocking Density and Genetic Selection. Asian-Australas J Anim Sci 2015; 29:901-7. [PMID: 26954185 PMCID: PMC4852259 DOI: 10.5713/ajas.15.0456] [Citation(s) in RCA: 9] [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] [Subscribe] [Scholar Register] [Received: 05/24/2015] [Revised: 07/06/2015] [Accepted: 08/02/2015] [Indexed: 11/27/2022]
Abstract
The present study investigated stocking density and genetic lines, factors that may alter the severity and incidence of angel wing (AW), in White Roman geese. Geese (n = 384) from two genetically selected lines (normal- winged line, NL, and angel-winged line, AL, respectively) and one commercial line (CL) were raised in four pens. Following common commercial practice, low-stocking-density (LD), medium-stocking-density, and high-stocking-density treatments were respectively administered to 24, 32, and 40 geese per pen at 0 to 3 weeks (1.92 m2/pen) and 4 to 6 weeks (13.2 m2/pen) of age and to 24, 30, and 36 geese at 7 to 14 weeks (20.0 m2/pen) of age. The results revealed that stocking density mainly affected body weight gain in geese younger than 4 weeks, and that geese subjected to LD had a high body weight at 2 weeks of age. However, the effect of stocking density on the severity score of AW (SSAW) and incidence of AW (IAW) did not differ significantly among the treatments. Differences were observed among the genetic stocks; that is, SSAW and IAW were significantly higher in AL than in NL and CL. Genetic selection generally aggravates AW, complicating its elimination. To effectively reduce IAW, stocking density, a suspected causal factor, should be lower than that presently applied commercially.
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Affiliation(s)
- M J Lin
- Department of Animal Science, National Chung Hsing University, Taichung 40227, Taiwan.,Changhua Animal Propagation Station, Livestock Research Institute, Council of Agriculture, Executive Yuan, Changhua 52149, Taiwan
| | - S C Chang
- Department of Animal Science, National Chung Hsing University, Taichung 40227, Taiwan.,Changhua Animal Propagation Station, Livestock Research Institute, Council of Agriculture, Executive Yuan, Changhua 52149, Taiwan
| | - T Y Lin
- Changhua Animal Propagation Station, Livestock Research Institute, Council of Agriculture, Executive Yuan, Changhua 52149, Taiwan
| | - Y S Cheng
- Livestock Research Institute, Council of Agriculture, Executive Yuan, Tainan 71246, Taiwan
| | - Y P Lee
- Department of Animal Science, National Chung Hsing University, Taichung 40227, Taiwan
| | - Y K Fan
- Department of Animal Science, National Chung Hsing University, Taichung 40227, Taiwan
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Liu HC, Huang JF, Lee SR, Liu HL, Hsieh CH, Huang CW, Huang MC, Tai C, Poivey JP, Rouvier R, Cheng YS. Selection for Duration of Fertility and Mule Duck White Plumage Colour in a Synthetic Strain of Ducks (Anas platyrhynchos). Asian-Australas J Anim Sci 2015; 28:605-11. [PMID: 25715691 PMCID: PMC4412989 DOI: 10.5713/ajas.14.0740] [Citation(s) in RCA: 5] [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] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 10/23/2014] [Accepted: 11/08/2014] [Indexed: 11/27/2022]
Abstract
A synthetic strain of ducks (Anas platyrhynchos) was developed by introducing genes for long duration of fertility to be used as mother of mule ducklings and a seven-generation selection experiment was conducted to increase the number of fertile eggs after a single artificial insemination (AI) with pooled Muscovy semen. Reciprocal crossbreeding between Brown Tsaiya LRI-2 (with long duration of fertility) and Pekin L-201 (with white plumage mule ducklings) ducks produced the G0. Then G1 were intercrossed to produce G2 and so on for the following generations. Each female duck was inseminated 3 times, at 26, 29, and 32 weeks of age. The eggs were collected for 14 days from day 2 after AI. Individual data regarding the number of incubated eggs (Ie), the number of fertile eggs at candling at day 7 of incubation (F), the total number of dead embryos (M), the maximum duration of fertility (Dm) and the number of hatched mule ducklings (H) with plumage colour were recorded. The selection criterion was the breeding values of the best linear unbiased prediction animal model for F. The results show high percentage of exhibited heterosis in G2 for traits to improve (19.1% for F and 12.9% for H); F with a value of 5.92 (vs 3.74 in the Pekin L-201) was improved in the G2. Heritabilities were found to be low for Ie (h (2) = 0.07±0.03) and M (h (2) = 0.07±0.01), moderately low for Dm (h (2) = 0.13±0.02), of medium values for H (h (2) = 0.20±0.03) and F (h (2) = 0.23±0.03). High and favourable genetic correlations existed between F and Dm (rg = 0.93), between F and H (rg = 0.97) and between Dm and H (rg = 0.90). The selection experiment showed a positive trend for phenotypic values of F (6.38 fertile eggs in G10 of synthetic strain vs 5.59 eggs in G4, and 3.74 eggs in Pekin L-201), with correlated response for increasing H (5.73 ducklings in G10 vs 4.86 in G4, and 3.09 ducklings in Pekin L-201) and maximum duration of the fertile period without increasing the embryo mortality rate. The average predicted genetic response for F was 40% of genetic standard deviation per generation of selection. The mule ducklings' feather colour also was improved. It was concluded that this study provided results for a better understanding of the genetics of the duration of fertility traits in the common female duck bred for mule and that the selection of a synthetic strain was effective method of improvement.
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Affiliation(s)
- H C Liu
- Ilan Branch, Livestock Research Institute, Council of Agriculture, Ilan 26845, Taiwan
| | - J F Huang
- Ilan Branch, Livestock Research Institute, Council of Agriculture, Ilan 26845, Taiwan
| | - S R Lee
- Ilan Branch, Livestock Research Institute, Council of Agriculture, Ilan 26845, Taiwan
| | - H L Liu
- Livestock Rescarch Institute, Council of Agriculture, Tainan 71246, Taiwan
| | - C H Hsieh
- Livestock Rescarch Institute, Council of Agriculture, Tainan 71246, Taiwan
| | - C W Huang
- Department of Aquaculture, National Taiwan Ocean University, Keelung 20024, Taiwan
| | - M C Huang
- Department of Animal Science, National Chung Hsing University, Taichung 40227, Taiwan
| | - C Tai
- Southern Taiwan University of Science and Technology, Tainan 71005, Taiwan
| | - J P Poivey
- Institut National de la Recherche Agronomique, Station d'Amélioration Génétique des Animaux, 31326 Castanet-Tolosan, France
| | - R Rouvier
- Institut National de la Recherche Agronomique, F-34000 Montpellier, France
| | - Y S Cheng
- Livestock Rescarch Institute, Council of Agriculture, Tainan 71246, Taiwan
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Zhang LQ, Zhao YC, Wang XW, Yang J, Lu ZW, Cheng YS. Primary localized tracheobronchial amyloidosis presenting with massive hemoptysis: a case report and literature review. Clin Respir J 2015; 11:122-125. [PMID: 25832552 DOI: 10.1111/crj.12301] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Revised: 02/02/2015] [Accepted: 03/23/2015] [Indexed: 11/28/2022]
Abstract
Primary localized tracheobronchial amyloidosis (TBA) is a rare respiratory tract dysfunction, which is a heterogeneous group of diseases involving abnormal extracellular deposition of amyloid and autologous fibrillar protein material in β-pleated sheets. A 64-year-old man was referred to our hospital because of hemoptysis. Physical examination showed decreased breath sounds in the right lung on auscultation. Chest computed tomography scan displayed multiple nodules with varied size in main bronchia around bilateral hilus of the lung. After admission, bronchoscopy was performed for this patient, and roughness of mucosa in trachea and multiple nodules in respiratory tract were observed. Through further tissue biopsy, the diagnosis of primary TBA was confirmed.
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Affiliation(s)
- Li-Qin Zhang
- The Department of Respiratory Medicine, Yijishan Hospital, Wannan Medical College, Wuhu, China
| | - Yi-Chao Zhao
- The Department of Respiratory Medicine, Yijishan Hospital, Wannan Medical College, Wuhu, China
| | - Xiao-Wei Wang
- The Department of Respiratory Medicine, Yijishan Hospital, Wannan Medical College, Wuhu, China
| | - Jian Yang
- The Department of Respiratory Medicine, Yijishan Hospital, Wannan Medical College, Wuhu, China
| | - Zhi-Wei Lu
- The Department of Respiratory Medicine, Yijishan Hospital, Wannan Medical College, Wuhu, China
| | - Yu-Sheng Cheng
- The Department of Respiratory Medicine, Yijishan Hospital, Wannan Medical College, Wuhu, China
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Yurchenco PD, Cheng YS. Laminin self-assembly: a three-arm interaction hypothesis for the formation of a network in basement membranes. Contrib Nephrol 2015; 107:47-56. [PMID: 8004974 DOI: 10.1159/000422960] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- P D Yurchenco
- Department of Pathology, Robert Wood Johnson Medical School, Piscataway, N.J
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Yu CY, Cheng YS. Preparation and characterization of alternating copolymers containing fluorene and hexyl- or perfluorohexyl-substituted thiophene. POLYM INT 2015. [DOI: 10.1002/pi.4765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chin-Yang Yu
- Department of Materials Science and Engineering; National Taiwan University of Science and Technology; 43, Section 4, Keelung Road Taipei 10607 Taiwan
| | - Yu-Sheng Cheng
- Department of Materials Science and Engineering; National Taiwan University of Science and Technology; 43, Section 4, Keelung Road Taipei 10607 Taiwan
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Cheng YS, Lu ZW. Bronchial aneurysm secondary to tuberculosis presenting with fatal hemoptysis: a case report and review of the literature. J Thorac Dis 2014; 6:E70-2. [PMID: 24977030 DOI: 10.3978/j.issn.2072-1439.2014.04.07] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Accepted: 01/24/2014] [Indexed: 11/14/2022]
Abstract
Fatal hemoptysis is a serious complication of pulmonary tuberculosis, which can rarely be due to a bronchial aneurysm. Here, we present a case of fatal hemoptysis due to bronchial aneurysm occurred in a 59-year-old patient of Han ethnicity suffering from active pulmonary tuberculosis. Meanwhile, we perform a literature review of reported cases to stress detailed radiological examination is needed prior to bronchoscopy to exclude the possibility of aneurysm existent in proximity to the lesions caused by mycobacterium tuberculosis. Urgent and effective treatment is needed to control such life-threatening bleeding, such as rigid bronchoscopy, endovascular therapy and surgery, and endovascular stent-graft repair.
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Affiliation(s)
- Yu-Sheng Cheng
- Department of Respiratory Medicine of Yijishan Hospital, Wannan Medical College, Wuhu 241001, China
| | - Zhi-Wei Lu
- Department of Respiratory Medicine of Yijishan Hospital, Wannan Medical College, Wuhu 241001, China
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Abstract
MicroRNAs (miRNAs) in human saliva have recently demonstrated to be potential biomarkers for diagnosis purposes. However, lack of well-characterized/matched clinical groups and lack of suitable endogenous control (EC) for salivary extracellular miRNA detection and normalization are among the restrictions of applying salivary-based miRNA biomarker discovery. In the present study, we examined the differential expression pattern of miRNAs among 4 groups of subjects-including patients with oral squamous cell carcinoma (OSCC), patients with OSCC in remission (OSCC-R), patients with oral lichen planus, and healthy controls (HCs)-using a genomewide high-throughput miRNA microarray. First, we systematically screened 10 pooling samples and 34 individual samples of different groups to find a proper EC miRNA. We then investigated the genomewide expression patterns of differentially expressed miRNAs in saliva of different groups using NanoString nCounter miRNA expression assay and real-time quantitative polymerase chain reaction, followed by construction of receiver operating characteristic curves to determine the sensitivity and specificity of the assay. We identified miRNA-191 as a suitable EC miRNA with minimal intergroup and intragroup variability, and we used it for normalization. Of more than 700 miRNAs tested, 13 were identified as being significantly deregulated in saliva of OSCC patients compared to HCs: 11 miRNAs were underexpressed (miRNA-136, miRNA-147, miRNA-1250, miRNA-148a, miRNA-632, miRNA-646, miRNA668, miRNA-877, miRNA-503, miRNA-220a, miRNA-323-5p), and 2 miRNAs were overexpressed (miRNA-24, miRNA-27b). MiRNA-136 was underexpressed in both OSCC vs. HCs and OSCC vs. OSCC-R. MiRNA-27b levels were significantly higher in OSCC patients compared to those found in HCs, patients with OSCC-R, and patients with oral lichen planus and served as a characteristic biomarker of OSCC. Receiver operating characteristic curve analyses showed that miRNA-27b could be a valuable biomarker for distinguishing OSCC patients from the other groups. Our novel findings established a reliable EC miRNA for salivary-based diagnostic and indicate that the salivary miRNA profiles are discriminatory in OSCC patients.
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Affiliation(s)
- F Momen-Heravi
- Department of Medicine, University of Massachusetts Medical School, Worcester, MA, USA Harvard Catalyst Laboratory for Innovative Translational Technologies, Harvard Medical School Boston, MA, USA
| | - A J Trachtenberg
- Harvard Catalyst Laboratory for Innovative Translational Technologies, Harvard Medical School Boston, MA, USA
| | - W P Kuo
- Harvard Catalyst Laboratory for Innovative Translational Technologies, Harvard Medical School Boston, MA, USA Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA
| | - Y S Cheng
- Department of Diagnostic Sciences, Texas A&M University-Baylor College of Dentistry, Dallas, TX, USA
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Shanmugam V, Chien YH, Cheng YS, Liu TY, Huang CC, Su CH, Chen YS, Kumar U, Hsu HF, Yeh CS. Oligonucleotides--assembled Au nanorod-assisted cancer photothermal ablation and combination chemotherapy with targeted dual-drug delivery of Doxorubicin and Cisplatin prodrug. ACS Appl Mater Interfaces 2014; 6:4382-93. [PMID: 24559392 DOI: 10.1021/am5000905] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
External stimuli responsive dual drugs carrier was synthesized with Au nanorods (NRs) as the platform. On Au NRs, single stranded DNAs were assembled using 5' thiol end. Following this, complementary DNA (cDNA) strands were hybridized. This hybridized double stranded DNA facilitated doxorubicin (Dox) intercalation into the duplexes. The cDNA designed with the 5' amine functional group assisted to tether platinum [Pt(IV)] prodrugs by establishing amide bond with the acid group at the axial ligand. The other axial acid group in Pt(IV) prodrugs was conjugated with the folic acid (FA) to target folate receptors overexpressed in the cancer cells. This targeting vehicle provided remote-controlled delivery of this high toxic cargo cocktail at the tumor site, ensuring extra specificity that can avoid acute toxicity, where release of Dox and Pt(IV) was achieved upon NIR 808 nm diode laser irradiation. The dehybridization set the Dox free to bind the cell nucleus and cellular reductants reduced Pt(IV) to yield toxic Pt(II), becoming an active drug. The in vitro and in vivo studies revealed that this external stimulus responsive combination drug delivery was significantly effective.
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Affiliation(s)
- Vijayakumar Shanmugam
- Department of Chemistry, Center for Micro/Nano Science and Technology, and Advanced Optoelectronic Technology Center, National Cheng Kung University , Tainan 701, Taiwan
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Lai MS, Cheng YS, Chen PR, Tsai SJ, Huang BM. Fibroblast growth factor 9 activates akt and MAPK pathways to stimulate steroidogenesis in mouse leydig cells. PLoS One 2014; 9:e90243. [PMID: 24603862 PMCID: PMC3946167 DOI: 10.1371/journal.pone.0090243] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Accepted: 01/27/2014] [Indexed: 12/22/2022] Open
Abstract
Fibroblast growth factor 9 (FGF9) is a multifunctional polypeptide belonging to the FGF family and has functions related to bone formation, lens-fiber differentiation, nerve development, gap-junction formation and sex determination. In a previous study, we demonstrated that FGF9 stimulates the production of testosterone in mouse Leydig cells. In the present study, we used both primary mouse Leydig cells and MA-10 mouse Leydig tumor cells to further investigate the molecular mechanism of FGF9-stimulated steroidogenesis. Results showed that FGF9 significantly activated steroidogenesis in both mouse primary and tumor Leydig cells (p<0.05). Furthermore, FGF9 significantly induced the expression of phospho-Akt at 0.5 and 24 hr, phospho-JNK at 0.25, 0.5, and 24 hr, phospho-p38 at 0.5 hr, and phospho-ERK1/2 from 0.25 to 24 hr in primary Leydig cells (p<0.05). Also, FGF9 significantly up-regulated the expression of phospho-Akt at 3 hr, phospho-JNK at 0.25 hr, and phospho-ERK1/2 at 1 and 3 hr in MA-10 cells (p<0.05). Using specific inhibitors of Akt, JNK, p38, and ERK1/2, we further demonstrated that the inhibitors of Akt and ERK1/2 significantly suppressed the stimulatory effect of FGF9 on steroidogenesis in mouse Leydig cells. In conclusion, FGF9 specifically activated the Akt and ERK1/2 in normal mouse Leydig cells and the Akt, JNK and ERK1/2 in MA-10 mouse Leydig tumor cells to stimulate steroidogenesis.
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Affiliation(s)
- Meng-Shao Lai
- Institute of Basic Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
- Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
| | - Yu-Sheng Cheng
- Department of Urology, National Cheng Kung University Hospital Douliou Branch, Yunlin, Taiwan, Republic of China
| | - Pei-Rong Chen
- Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
| | - Shaw-Jenq Tsai
- Department of Physiology, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
| | - Bu-Miin Huang
- Institute of Basic Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
- Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Republic of China
- * E-mail:
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Chung CL, Lu CW, Cheng YS, Lin CY, Sun HS, Lin YM. Association of aberrant expression of sex-determining gene fibroblast growth factor 9 with Sertoli cell–only syndrome. Fertil Steril 2013; 100:1547-54.e1-4. [DOI: 10.1016/j.fertnstert.2013.08.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Revised: 07/10/2013] [Accepted: 08/05/2013] [Indexed: 11/27/2022]
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Reed MD, Tellez CS, Grimes MJ, Picchi MA, Tessema M, Cheng YS, March TH, Kuehl PJ, Belinsky SA. Aerosolised 5-azacytidine suppresses tumour growth and reprogrammes the epigenome in an orthotopic lung cancer model. Br J Cancer 2013; 109:1775-81. [PMID: 24045660 PMCID: PMC3790193 DOI: 10.1038/bjc.2013.575] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 08/21/2013] [Accepted: 08/28/2013] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Epigenetic silencing by promoter methylation and chromatin remodelling affects hundreds of genes and is a causal event for lung cancer. Treatment of patients with low doses of the demethylating agent 5-azacytidine in combination with the histone deacetylase inhibitor entinostat has yielded clinical responses. The subcutaneous dosing route for consecutive days and reduced bioavailability of 5-azacytidine because of inactivation by cytidine deaminase may limit the expansion of epigenetic therapy into Phase III trials. To mitigate these barriers, an aerosol of 5-azacytidine was generated and characterised. METHODS The effect of aerosol vs systemic delivery of 5-azacytidine on tumour burden and molecular response of engrafted lung tumours in the nude rat was compared. RESULTS Pharmacokinetics revealed major improvement in the half-life of 5-azacytidine in lung tissue with aerosol delivery. Aerosolised 5-azacytidine significantly reduced lung tumour burden and induced global demethylation of the epigenome at one-third of the comparable effective systemic dose. High commonality for demethylation of genes was seen in tumours sampled throughout lung lobes and across treated animals receiving the aerosolised drug. CONCLUSION Collectively, these findings show that aerosolised 5-azacytidine targets the lung, effectively reprogrammes the epigenome of tumours, and is a promising approach to combine with other drugs for treating lung cancer.
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Affiliation(s)
- M D Reed
- Lung Cancer Program, Lovelace Respiratory Research Institute, 2425 Ridgecrest Drive SE, Albuquerque, NM 87108, USA
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Tsai MF, Chang SHG, Cheng FY, Shanmugam V, Cheng YS, Su CH, Yeh CS. Au nanorod design as light-absorber in the first and second biological near-infrared windows for in vivo photothermal therapy. ACS Nano 2013; 7:5330-42. [PMID: 23651267 DOI: 10.1021/nn401187c] [Citation(s) in RCA: 288] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Photothermal cancer therapy using near-infrared (NIR) laser radiation is an emerging treatment. In the NIR region, two biological transparency windows are located in 650-950 nm (first NIR window) and 1000-1350 nm (second NIR window) with optimal tissue transmission obtained from low scattering and energy absorption, thus providing maximum radiation penetration through tissue and minimizing autofluorescence. To date, intensive effort has resulted in the generation of various methods that can be used to shift the absorbance of nanomaterials to the 650-950 nm NIR regions for studying photoinduced therapy. However, NIR light absorbers smaller than 100 nm in the second NIR region have been scant. We report that a Au nanorod (NR) can be designed with a rod-in-shell (rattle-like) structure smaller than 100 nm that is tailored to be responsive to the first and second NIR windows, in which we can perform hyperthermia-based therapy. In vitro performance clearly displays high efficacy in the NIR photothermal destruction of cancer cells, showing large cell-damaged area beyond the laser-irradiated area. This marked phenomenon has made the rod-in-shell structure a promising hyperthermia agent for the in vivo photothermal ablation of solid tumors when activated using a continuous-wave 808 m (first NIR window) or a 1064 nm (second NIR window) diode laser. We tailored the UV-vis-NIR spectrum of the rod-in-shell structure by changing the gap distance between the Au NR core and the AuAg nanoshell, to evaluate the therapeutic effect of using a 1064 nm diode laser. Regarding the first NIR window with the use of an 808 nm diode laser, rod-in-shell particles exhibit a more effective anticancer efficacy in the laser ablation of solid tumors compared to Au NRs.
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Affiliation(s)
- Ming-Fong Tsai
- Department of Chemistry, Center for Micro/Nano Science and Technology, and Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan, 701 Taiwan
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Zhu YQ, Cui WG, Cheng YS, Chang J, Chen NW, Yan L, Li MH. Biodegradable rapamycin-eluting nano-fiber membrane-covered metal stent placement to reduce fibroblast proliferation in experimental stricture in a canine model. Endoscopy 2013; 45:458-68. [PMID: 23580413 DOI: 10.1055/s-0032-1326399] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
BACKGROUND AND STUDY AIMS The aim of the current study was to assess whether placement of the biodegradable rapamycin-eluting nano-fiber membrane-covered metal stent is followed by less fibroblast proliferation and tissue hyperplasia compared with bare stents in experimental stricture in a dog model. METHODS A total of 80 dog models of stricture were randomly divided into a control group (n = 20, no stent insertion), a bare stent group (BSG, n = 20, 1-week retention), and two drug-eluting stent sub-groups (DESG-1w, n = 20, 1-week retention; DESG-4w, n = 20, 4-week retention). Lower esophageal sphincter (LES) pressure, 5-minute barium height (5-mBH), and cardia diameter were assessed before, immediately after the procedure, and regularly thereafter for 6 months. Five dogs in each group were euthanized for histological examination at each follow-up assessment. RESULTS Stent insertion was well tolerated, with similar migration rates (0 % in BSG vs. 7.5 % in DESGs; P = 0.5441). At 6 months, LES pressure and 5-mBH improved in DESG-1w (26.70 ± 5.02 mmHg and 6.50 ± 2.98 cm) and DESG-4w (20.16 ± 5.50 mmHg and 1.54 ± 0.98 cm) compared with BSG (39.94 ± 5.22 mmHg and 11.1 ± 5.46 cm) (P < 0.05), with DESG-4w being more stable than DESG-1w (P < 0.05). The cardia maintained greater patency in the DESGs (7.10 ± 3.09 mm in DESG-1w; 9.16 ± 3.77 mm in DESG-4w) than in the BSG (1.86 ± 2.45 mm; P < 0.05). Reduced peak inflammatory reactions and scarring occurred in DESGs compared with the BSG (P < 0.05), with a better outcome in DESG-4w than in DESG-1w (P < 0.05). CONCLUSIONS In this experimental stricture model, rapamycin-eluting stents were more effective than bare stents for the reduction of fibroblast proliferation and tissue hyperplasia after stent placement. Furthermore, 4-week retention of the drug-eluting stent led to a better outcome than 1-week retention.
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Affiliation(s)
- Y Q Zhu
- Department of Radiology, The Sixth Affiliated People's Hospital, Medical school of Shanghai Jiao Tong University, Shanghai, China
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Shi FH, Cheng YS, Dai DZ, Peng HJ, Cong XD, Dai Y. Depressed calcium-handling proteins due to endoplasmic reticulum stress and apoptosis in the diabetic heart are attenuated by argirein. Naunyn Schmiedebergs Arch Pharmacol 2013; 386:521-31. [PMID: 23525487 DOI: 10.1007/s00210-013-0852-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Accepted: 03/11/2013] [Indexed: 12/27/2022]
Abstract
Diabetic cardiomyopathy (DC) is a unique disease frequently complicated to diabetes mellitus, manifesting endoplasmic reticulum (ER) stress and depressed calcium-handling proteins. We hypothesized that the abnormal FKBP12.6, SERCA2a, and CASQ2 are consequent to ER stress and apoptosis that are likely due to an entity of inflammation. These abnormalities may be attributed to reactive oxygen species genesis from activated NADPH oxidase which could respond to argirein (AR) through its anti-inflammatory activity. Sprague Dawley rats were randomly divided into six groups. Except the normal group, rats were injected with streptozotocin (STZ; 60 mg/kg, i.p.) once. During weeks 5 to 8 following STZ injection, rats were treated (in milligrams per kilogram per day, i.g.) with aminoguanidine (AMG, 100; an inducible nitric oxide synthase and AGEs inhibitor) or three doses of AR (50, 100, and 200). FKBP12.6, SERCA2a, and CASQ2 and ER stress chaperones Bip and PERK and apoptotic molecules were monitored in vivo and in vitro. Impaired cardiac performance and downregulated FKBP12.6, SERCA2a, and CASQ2 were significant in DC in vivo, and abnormal calcium-handling proteins were also found in high-glucose-incubated myocytes in vitro. ER stress manifested by upregulated Bip and PERK was predominant in association with DNA ladder and upregulated Bax and downregulated BCL-2 in vivo and in vitro. AR is effective to attenuate these abnormalities compared to AMG. Diabetic myocardium has inflammatory entity expressed as ER stress contributing to downregulated calcium-handling proteins. AR has potential in managing DC through attenuating depressed calcium-handling proteins, activated ER stress, and apoptosis in the myocardium.
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Affiliation(s)
- F H Shi
- Research Division of Pharmacology, China Pharmaceutical University, 24 Tongjia Lane, Nanjing, 210009, China
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Cheng YS, Xu F, Shen HH. [Protein tyrosine phosphatase SHP2 and respiratory diseases]. Sheng Li Ke Xue Jin Zhan 2011; 42:379-382. [PMID: 22242408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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Tang GY, Lv ZW, Tang RB, Liu Y, Peng YF, Li W, Cheng YS. Evaluation of MR spectroscopy and diffusion-weighted MRI in detecting bone marrow changes in postmenopausal women with osteoporosis. Clin Radiol 2010; 65:377-81. [PMID: 20380936 DOI: 10.1016/j.crad.2009.12.011] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2009] [Revised: 11/28/2009] [Accepted: 12/01/2009] [Indexed: 11/26/2022]
Abstract
AIM To prospectively investigate the role of MR spectroscopy (MRS) and diffusion-weighted magnetic resonance imaging (DWI) in assessing vertebral marrow changes in postmenopausal women with osteoporosis. MATERIALS AND METHODS Seventy-eight postmenopausal women (mean age 63.7+/-3.5 years; range 55-81 years), who underwent dual-energy x-ray absorptiometry of the spine, were divided into three bone density groups (24 with normal, 25 with osteopaenic, and 29 with osteoporotic) based on T score. Both MRS and DWI of the L3 vertebral body were performed to calculate the marrow fat content and apparent diffusion coefficient (ADC). The results were compared between three groups and correlated with BMD. RESULTS Vertebral marrow fat content was significantly increased in the osteoporotic group (59.97+/-5.78%), when compared with that of the osteopaenic group (53.04+/-7.66%, p=0.001) and the normal bone density group (48.79+/-7.1%, p<0.001). ADC values in the osteoporotic, osteopaenic, and normal bone density groups were 0.39+/-0.02x10(-3)mm(2)/s, 0.41+/-0.02x10(-3)mm(2)/s, and 0.47+/-0.03x10(-3)mm(2)/s, respectively, with statistically significant difference (P<0.001). A statistically significant positive correlation between T scores and ADC existed (r=0.835, p<0.001). The vertebral marrow fat content was negatively correlated to the bone density (r=-0.639, p<0.001) and to marrow ADC (r=-0.554, p<0.001). CONCLUSION The postmenopausal women with osteoporosis exhibited a corresponding increase in vertebral marrow fat content as the bone density decreased. Marrow fat content and ADC were related to the bone density. MRS and DWI are helpful in evaluating the bone marrow changes in postmenopausal women.
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Affiliation(s)
- G Y Tang
- Department of Radiology, Affiliated Tenth People's Hospital of Tongji University, Shanghai, China.
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Xu M, Dai DZ, Zhang Q, Cheng YS, Dai Y. Upregulated NADPH oxidase contributes to diabetic testicular complication and is relieved by strontium fructose 1,6-diphosphate. Exp Clin Endocrinol Diabetes 2010; 118:459-65. [PMID: 20200810 DOI: 10.1055/s-0030-1248325] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Diabetes is frequently associated with declining sexual function resulting from oxidative damage. NADPH oxidase is a major resource of reactive oxygen species (ROS) in the testes and is likely related to an activated endothelin-1 (ET-1) system. An activation of NADPH oxidase-ET-1 pathway was hypothesized in diabetic testopathy. We verified the hypothesis and tested if strontium fructose 1,6-diphosphate (FDP-Sr) could relieve these changes in diabetic testis as compared to testosterone propionate (TP) and sildenafil. Diabetes was produced in male Sprague-Dawley rats 8 weeks after a single injection of streptozotocin (STZ), and interventions with testosterone propionate (TP), sildenafil and FDP-Sr were conducted in the last 4 weeks. Blood glucose, testosterone, follicle stimulating hormone (FSH) , luteinizing hormone (LH) and expressions of NADPH oxidase subunits and the ET system were measured. Decreased insulin, FSH, LH and testosterone in serum were found associating with testicular oxidative stress in STZ-injected rats. Additionally, over-expressions of NADPH oxidase p22, p47, p67 subunits and the ET pathway were significant in the diabetic testis relative to normal and were completely abolished by FDP-Sr. Both TP and sildenafil were not beneficial to diabetic testopathy except serum androgen raised by TP. Activated NADPH oxidase and ET system are significant contributing to testis injury and are responded to FDP-Sr only, against both TP and sildenafil, by restoring the testis function and the hypothalamus-pituitary-testis axis. It is due to its extra-energy supply and an antioxidant activity of FDP-Sr.
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Affiliation(s)
- M Xu
- Research Division of Pharmacology, China Pharmaceutical University, Nanjing, China
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Knox AMI, Li XF, Kinsey-Jones JS, Wilkinson ES, Wu XQ, Cheng YS, Milligan SR, Lightman SL, O'Byrne KT. Neonatal lipopolysaccharide exposure delays puberty and alters hypothalamic Kiss1 and Kiss1r mRNA expression in the female rat. J Neuroendocrinol 2009; 21:683-9. [PMID: 19500221 PMCID: PMC2817439 DOI: 10.1111/j.1365-2826.2009.01885.x] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Immunological challenge experienced in early life can have long-term programming effects on the hypothalamic-pituitary-adrenal axis that permanently influence the stress response. Similarly, neonatal exposure to immunological stress enhances stress-induced suppression of the hypothalamic-pituitary gonadal (HPG) axis in adulthood, but may also affect earlier development, including the timing of puberty. To investigate the timing of the critical window for this programming of the HPG axis, neonatal female rats were injected with lipopolysaccharide (LPS; 50 microg/kg i.p.) or saline on postnatal days 3 + 5, 7 + 9, or 14 + 16 and monitored for vaginal opening and first vaginal oestrus as markers of puberty. We also investigated the effects of neonatal programming on the development of the expression patterns of kisspeptin (Kiss1) and its receptor (Kiss1r) in hypothalamic sites known to contain kisspeptin-expressing neuronal populations critical to reproductive function: the medial preoptic area (mPOA) and the arcuate nucleus in neonatally-stressed animals. We determined that the critical period for a significant delay in puberty as a result of neonatal LPS exposure is before 7 days of age in the female rat, and demonstrated that Kiss1, but not Kiss1r mRNA, expression in the mPOA is down-regulated in pre-pubertal females. These data suggest that the mPOA population of kisspeptin neurones play a pivotal role in controlling the onset of puberty, and that their function can be affected by neonatal stress.
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Affiliation(s)
- A M I Knox
- Division of Reproduction & Endocrinology, King's College London, London, UK
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Abstract
AIM To describe an unusual symptom of benign prostatic hyperplasia (BPH). METHODS A patient presented to our urology clinic having experienced post-coital gross hematuria for 2 years. He had not experienced lower urinary tract symptoms (LUTS). A series of examinations were performed to determine the source of bleeding. RESULTS The prostate was defined as the active bleeding source responsible for the patient's post-coital hematuria. Endoscopic fulguration did not alleviate the symptom. The use of dutasteride, a dual inhibitor of 5alpha-reductase, solved the problem. CONCLUSION This study reports for the first time that post-coital gross hematuria is one of the clinical presentations of BPH, which can be successfully treated with 5alpha-reductase inhibitor.
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Affiliation(s)
- Yi-Hong Chen
- Department of Urology, College of Medicine, National Cheng Kung University, Tainan, Taiwan 704, China
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Abstract
We describe an unusual complication of coital trauma in a 29-year-old man who presented with a 3-year history of hematospermia and post-coital gross hematuria. Using urethroscopy under a semi-tumescent penis, an isolated urethral injury with active bleeding was detected at the prostatic urethra. The patient was successfully treated with transurethral fulguration. We suggest that isolated posterior urethral injury is one of the causes of male coital trauma, which might be asymptomatic when the penis is flaccid but show symptomatic bleeding when the penis is erect.
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Affiliation(s)
- Yu-Sheng Cheng
- Department of Urology, National Cheng Kung University Hospital, 138 Sheng-Li Road, Tainan 704, Taiwan, China
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Cheng YS, Rouvier R, Poivey JP, Huang HC, Liu HL, Tai C. Selection responses in duration of fertility and its consequences on hatchability in the intergeneric crossbreeding of ducks. Br Poult Sci 2006; 46:565-71. [PMID: 16359109 DOI: 10.1080/00071660500273193] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
1. From 1992 to 2003, selected (S) and control lines (C) of the laying Brown Tsaiya duck (Anas platyrhynchos) were simultaneously maintained under the same standardised conditions of feeding and management. 2. The selection objective was to increase the number of fertile eggs after a single artificial insemination (AI) with pooled Muscovy semen. From generations G1 to G11, 2452 and 2022 female ducks, in S and C lines, respectively, were measured and recorded. In the S line, the percentage selected varied between 20.2 and 34.3% in females and between 7.2 and 20.8% in males. 3. Selection for number of fertile eggs had a correlated effect of increasing the parameter tau of the logistic curves which fitted the daily variations (d 2 to 15) in fertility or hatchability on the basis of eggs set. The differences S-C for the estimates of the times of half maximal fertility and hatchability increased by 0.41 and 0.37 d per generation between G1 and G11, respectively. 4. The highest increases of fertility per day rates after a single AI were observed between d 5 and 11. Moreover, in the selected line, fertility rate was higher than, or equal to, 90% in d 2 from G8. The same tendencies were observed for the changes in the evolution of hatchability on the basis of eggs set. 5. Selection increased fertility and hatchability according to the egg set rates, especially for d 2 to 8 after AI. Hatchability of fertile eggs was not impaired, confirming that selection for one AI per week was possible in this strain of laying ducks.
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Affiliation(s)
- Y S Cheng
- Livestock Research Institute, Council of Agriculture, Hsin-Hua, Tainan, Taiwan, Republic of China
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Abstract
Jet nebulizers are a drug delivery tool commonly used for treating respiratory diseases. When a nebulizer generates aerosols, the rate at which droplets evaporate depends on humidity conditions around the nebulizer outlet. Because the relative humidity (RH) of the air affects the evaporation rate, the aerosol distribution and drug delivery dose is also affected by RH. Four nebulizers were chosen for comparison in this study: PARI LC Plus (PARI Respiratory Equipment, Inc., Midlothian, VA), SideStream (Medic-Aid Ltd., UK), VixOne (Westmed, Inc., Tucson, AZ), and Micromist (Hudson Respiratory Care Inc., Temecula, CA). Two different formulations were used: albuterol (liquid solution) and budesonide (suspension). Particle distribution (mass median aerodynamic diameter [MMAD] and geometric standard deviation [GSD]), nebulizer efficiency (total efficiency and respirable fraction [RF] efficiency for particles less than 4.7 microm), and dead volume (the amount of solution remaining after nebulization) were compared at the RH of 5%, 50%, and 80%. Our results showed that the MMAD increased (p value varied from <0.001 to 0.016) with the increase in RH, except for with the VixOne unit with albuterol (p = 0.24). The MMAD from the budesonide always appeared higher than from the albuterol. The RF (and thus, the inhalation dose) was lower with a higher RH. Except for the PARI LC Plus with budesonide, the RF decreased approximately 15-27% when the RH rose from 5% to 50%. For the PARI LC Plus nebulizer, the lower dead volume (0.22 mL) with higher residual drugs (62.3% of total drug) was obtained at an RH of 5% comparing the RH of 50% and 80% because of the unit's unique design.
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Affiliation(s)
- Y Zhou
- Lovelace Respiratory Research Institute, Albuquerque, New Mexico 87108, USA.
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Abstract
OBJECTIVES The objectives of this study were to report one case of intraosseous oral leiomyoma and to systematically review the English literature. METHODS The clinical and radiographic findings of a patient who presented with intraosseous oral leiomyoma were recorded. In addition, 11 references from the English literature that reported 12 patients were reviewed. RESULTS Thirteen patients (age range 8 months to 71 years; mean 36 years, median 25 years) were reported to present with intraosseous oral leiomyoma. After excluding one patient whose sex was not reported, there were five female patients (42%) and seven males (58%). The majority of patients presented with either no symptoms or with an asymptomatic swelling. Eleven of 13 lesions occurred in the mandible; the most common site was the posterior of the jaw. Radiographically, intraosseous oral leiomyoma was found to present as either a unilocular or multilocular radiolucency with either well defined or ill defined borders and frequent cortical involvement. CONCLUSIONS Intraosseous oral leiomyoma was found to occur in the mandibular posterior region of relatively young patients, with cortical involvement and a slight male gender preference. Surgical excision was the treatment of choice and no recurrence has been encountered.
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Affiliation(s)
- H Liang
- Department of Diagnostic Sciences, Baylor College of Dentistry, Texas A&M University System Health Science Center, Dallas, Texas 7526-0677, USA.
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Abstract
Internal radiation from inhalation of metal tritide aerosols may present a significant radiation protection problem for nuclear facility workers. Dose was evaluated for three metal tritides: hafnium, titanium, and zirconium. The study included in vitro and in vivo exposures. The inhalation doses for the three materials were calculated by using the ICRP 66 lung model. The doses also were evaluated by a biokinetic model, which was developed according to the results of animal studies. Results showed that the hafnium tritide particles were the most dense but they had a lower dissolution rate and a higher retention rate. Among these three tritides, hafnium was classified as a Type S material according to the ICRP 66 publication, whereas titanium and zirconium ranked between Type M and F materials. The dissolution rate of hafnium tritide appeared to agree well with the in vitro and in vivo studies. The dissolution rates of the other two materials in the in vitro studies were a little higher than those of the in vivo studies. The doses calculated by the ICRP 66 model for all materials were approximately two orders smaller than the doses obtained by the animal studies. This bias was caused by the different intake methods of the ICRP 66 model (inhalation) and in the animal study (instillation). The doses were on the same order while correcting for deposition fractions. The effective doses for hafnium, titanium, and zirconium tritides were 5.43 x 10(-10), 9.05 x 10(-11), and 6.5 x 10(-10) Sv Bq(-1), respectively, according to the animal studies.
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Affiliation(s)
- Y Zhou
- Lovelace Respiratory Research Institute, Albuquerque, NM 87108, USA.
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