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Law S, Wan K, Yang W. Effects of bariatric surgery on sexual function and fertility: A narrative review. Obes Rev 2024; 25:e13757. [PMID: 38689132 DOI: 10.1111/obr.13757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 04/04/2024] [Accepted: 04/05/2024] [Indexed: 05/02/2024]
Abstract
Obesity has emerged as a prevalent global health concern, with its detrimental effects on the reproductive system and sexual function garnering increasing attention. Both men and women affected by obesity face a heightened risk of fertility challenges and sexual dysfunction. Although fertility and sexual function are distinct topics, they are intricately linked and mutually influential in both medical and societal contexts. Bariatric surgery (BS) has generated promising results in alleviating sexual dysfunction and enhancing fertility, results which are often gender specific. In men, improvements in sexual function can often be attributed to weight loss and subsequent optimizations in sex hormone levels. However, improving female sexual function may be related to a range of factors beyond weight loss. Bariatric procedures have shown limited benefits for male fertility; in fact, in some situations it can even be detrimental, leading to a decrease in sperm count and quality. Conversely, BS may positively impact female fertility, improving pregnancy and neonatal outcomes. Nevertheless, it is essential to consider the potential risks related to the adverse effects of malnutrition and rapid weight loss following BS, making it advisable to wait for 12-18 months before attempting pregnancy.
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Affiliation(s)
- Saikam Law
- Department of Metabolic and Bariatric Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
- School of Medicine, Jinan University, Guangzhou, China
| | - Kating Wan
- School of Medicine, Jinan University, Guangzhou, China
| | - Wah Yang
- Department of Metabolic and Bariatric Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
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2
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Rajabi MR, Rezaei M, Abdollahi A, Gholi Z, Mokhber S, Mohammadi-Farsani G, Abdoli D, Mousavi SD, Amini H, Ghandchi M. Long-term systemic effects of metabolic bariatric surgery: A multidisciplinary perspective. Heliyon 2024; 10:e34339. [PMID: 39149036 PMCID: PMC11324825 DOI: 10.1016/j.heliyon.2024.e34339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 07/06/2024] [Accepted: 07/08/2024] [Indexed: 08/17/2024] Open
Abstract
Background Obesity is a global health crisis with profound implications on various body systems, contributing to a series of comorbidities. Metabolic Bariatric Surgery (MBS) has emerged as an effective treatment option for severe obesity, with significant weight reduction and potential systemic physiological alterations. Objectives This narrative review aims to provide a comprehensive analysis of the long-term effects of MBS on a wide array of body systems, including the heart, liver, kidneys, reproductive system, skin, lungs, digestive tract, pancreas, and blood, as well as related cancers of these organs. Methods A systematic search was conducted in academic databases (PubMed, ISI Web of Science, and Scopus) for observational studies and reviews published between July 2000 and December 2023, investigating the association between MBS and the subsequent function of different organ systems. High-quality studies were prioritized to ensure reliable evidence synthesis. Results MBS has demonstrated favorable outcomes in reducing cardiovascular disease risk, improving cardiac function, and alleviating heart failure symptoms. It has also been associated with improved respiratory function, remission of obstructive sleep apnea, and reduced cancer incidence and mortality. Additionally, MBS has shown benefits in managing gastrointestinal disorders, enhancing glycemic control, and promoting pancreatic beta-cell regeneration in type 2 diabetes mellitus. However, some methods of MBS are associated with a higher risk of cholelithiasis, GERD, and pancreatic exocrine insufficiency. Conclusion MBS has far-reaching systemic effects beyond weight loss, offering potential long-term benefits for various organ systems and comorbidities associated with obesity. For many patients with severe obesity, the potential benefits of Metabolic and Bariatric Surgery (MBS) can outweigh the associated risks. However, careful evaluation by a qualified healthcare professional is crucial to determine candidacy and ensure a successful outcome. Further research is needed to fully elucidate the long-term impacts and tailor personalized treatment approaches.
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Affiliation(s)
| | - Masoud Rezaei
- Nursing and Midwifery Care Research Center, School of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran
- Cardiovascular Nursing Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Arash Abdollahi
- Minimally Invasive Surgery Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Gholi
- Minimally Invasive Surgery Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Somayeh Mokhber
- Minimally Invasive Surgery Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Gholamreza Mohammadi-Farsani
- Minimally Invasive Surgery Research Center, Iran University of Medical Sciences, Tehran, Iran
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Danial Abdoli
- Student Research Committee, Faculty of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran
| | - Seyed Davood Mousavi
- Student Research Committee, Faculty of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran
| | - Helen Amini
- Student Research Committee, Faculty of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Ghandchi
- Student Research Committee, Faculty of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran
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Service CA, Puri D, Al Azzawi S, Hsieh TC, Patel DP. The impact of obesity and metabolic health on male fertility: a systematic review. Fertil Steril 2023; 120:1098-1111. [PMID: 37839720 DOI: 10.1016/j.fertnstert.2023.10.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 10/09/2023] [Accepted: 10/11/2023] [Indexed: 10/17/2023]
Abstract
The impact of paternal obesity and metabolic disease on semen quality and fertility outcomes is not fully appreciated. With increasing obesity rates, researchers have studied the intricate relationship between paternal body mass index, metabolic health, and male fertility. This systematic review identified 112 articles in the MEDLINE database between 2013 and 2023 that investigated the effects of body mass index, diabetes, metabolic syndrome, exercise, weight loss medication, or bariatric surgery on semen parameters, sperm quality, or fertility outcomes. This review suggests that obesity, diabetes, and metabolic syndrome have a negative impact on various parameters of male fertility, from semen quality to sperm deoxyribonucleic acid integrity. There is also mounting evidence that male obesity is correlated negatively with live births via both natural conception and assisted reproductive technologies. Lifestyle interventions, such as physical exercise, generally appear to improve male fertility markers; however, the type and intensity of exercise may play a crucial role. Pharmacologic treatments for weight loss, such as metformin and glucagon-like peptide 1 agonists, present a more complex picture, with studies suggesting both beneficial and detrimental effects on male reproductive health. Similarly, surgical interventions, such as gastric bypass surgery, show promise in improving hormonal imbalances but have mixed effects on semen parameters. Future research is needed to clarify these associations and inform clinical guidelines. In the interim, health practitioners should incorporate these insights into clinical practices, encouraging proactive lifestyle changes and providing targeted treatments to improve male reproductive health.
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Affiliation(s)
- Chad Austin Service
- Department of Urology, University of California San Diego Health, San Diego, California.
| | - Dhruv Puri
- Department of Urology, University of California San Diego Health, San Diego, California
| | - Sultan Al Azzawi
- Department of Urology, University of California San Diego Health, San Diego, California
| | - Tung-Chin Hsieh
- Department of Urology, University of California San Diego Health, San Diego, California
| | - Darshan P Patel
- Department of Urology, University of California San Diego Health, San Diego, California
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4
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Farkouh A, Agarwal A, Hamoda TAAAM, Kavoussi P, Saleh R, Zini A, Arafa M, Harraz AM, Gul M, Karthikeyan VS, Durairajanayagam D, Rambhatla A, Boitrelle F, Chung E, Birowo P, Toprak T, Ghayda RA, Cannarella R, Phuoc NHV, Dimitriadis F, Russo GI, Sokolakis I, Mostafa T, Makarounis K, Ziouziou I, Kuroda S, Bendayan M, Kaiyal RS, Japari A, Simopoulou M, Rocco L, Garrido N, Gherabi N, Bocu K, Kahraman O, Le TV, Wyns C, Tremellen K, Sarikaya S, Lewis S, Evenson DP, Ko E, Calogero AE, Bahar F, Martinez M, Crafa A, Nguyen Q, Ambar RF, Colpi G, Bakircioglu ME, Henkel R, Kandil H, Serefoglu EC, Alarbid A, Tsujimura A, Kheradmand A, Anagnostopoulou C, Marino A, Adamyan A, Zilaitiene B, Ozer C, Pescatori E, Vogiatzi P, Busetto GM, Balercia G, Elbardisi H, Akhavizadegan H, Sajadi H, Taniguchi H, Park HJ, Maldonado Rosas I, Al-Marhoon M, Sadighi Gilani MA, Alhathal N, Pinggera GM, Kothari P, Mogharabian N, Micic S, Homa S, Darbandi S, Long TQT, Zohdy W, Atmoko W, Sabbaghian M, Ibrahim W, Smith RP, Ho CCK, de la Rosette J, El-Sakka AI, Preto M, Zenoaga-Barbăroșie C, Abumelha SM, Baser A, Aydos K, Ramirez-Dominguez L, Kumar V, Ong TA, Mierzwa TC, Adriansjah R, Banihani SA, Bowa K, Fukuhara S, Rodriguez Peña M, Moussa M, Ari UÇ, Cho CL, Tadros NN, Ugur MR, Amar E, Falcone M, Santer FR, Kalkanli A, Karna KK, Khalafalla K, Vishwakarma RB, Finocchi F, Giulioni C, Ceyhan E, Çeker G, Yazbeck C, Rajmil O, Yilmaz M, Altay B, Barrett TL, Ngoo KS, Roychoudhury S, Salvio G, Lin H, Kadioglu A, Timpano M, Avidor-Reiss T, Hakim L, Sindhwani P, Franco G, Singh R, Giacone F, Ruzaev M, Kosgi R, Sofikitis N, Palani A, Calik G, Kulaksız D, Jezek D, Al Hashmi M, Drakopoulos P, Omran H, Leonardi S, Celik-Ozenci C, Güngör ND, Ramsay J, Amano T, Sogutdelen E, Duarsa GWK, Chiba K, Jindal S, Savira M, Boeri L, Borges E, Gupte D, Gokalp F, Hebrard GH, Minhas S, Shah R. Controversy and Consensus on the Management of Elevated Sperm DNA Fragmentation in Male Infertility: A Global Survey, Current Guidelines, and Expert Recommendations. World J Mens Health 2023; 41:809-847. [PMID: 37118965 PMCID: PMC10523126 DOI: 10.5534/wjmh.230008] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 01/18/2023] [Accepted: 01/27/2023] [Indexed: 04/30/2023] Open
Abstract
PURPOSE Sperm DNA fragmentation (SDF) has been associated with male infertility and poor outcomes of assisted reproductive technology (ART). The purpose of this study was to investigate global practices related to the management of elevated SDF in infertile men, summarize the relevant professional society recommendations, and provide expert recommendations for managing this condition. MATERIALS AND METHODS An online global survey on clinical practices related to SDF was disseminated to reproductive clinicians, according to the CHERRIES checklist criteria. Management protocols for various conditions associated with SDF were captured and compared to the relevant recommendations in professional society guidelines and the appropriate available evidence. Expert recommendations and consensus on the management of infertile men with elevated SDF were then formulated and adapted using the Delphi method. RESULTS A total of 436 experts from 55 different countries submitted responses. As an initial approach, 79.1% of reproductive experts recommend lifestyle modifications for infertile men with elevated SDF, and 76.9% prescribe empiric antioxidants. Regarding antioxidant duration, 39.3% recommend 4-6 months and 38.1% recommend 3 months. For men with unexplained or idiopathic infertility, and couples experiencing recurrent miscarriages associated with elevated SDF, most respondents refer to ART 6 months after failure of conservative and empiric medical management. Infertile men with clinical varicocele, normal conventional semen parameters, and elevated SDF are offered varicocele repair immediately after diagnosis by 31.4%, and after failure of antioxidants and conservative measures by 40.9%. Sperm selection techniques and testicular sperm extraction are also management options for couples undergoing ART. For most questions, heterogenous practices were demonstrated. CONCLUSIONS This paper presents the results of a large global survey on the management of infertile men with elevated SDF and reveals a lack of consensus among clinicians. Furthermore, it demonstrates the scarcity of professional society guidelines in this regard and attempts to highlight the relevant evidence. Expert recommendations are proposed to help guide clinicians.
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Affiliation(s)
- Ala’a Farkouh
- Global Andrology Forum, American Center for Reproductive Medicine, Moreland Hills, OH, USA
| | - Ashok Agarwal
- Global Andrology Forum, American Center for Reproductive Medicine, Moreland Hills, OH, USA
- Cleveland Clinic Foundation, Cleveland, OH, USA
| | - 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
| | - Parviz Kavoussi
- Department of Reproductive Urology, Austin Fertility & Reproductive Medicine/Westlake IVF, Austin, TX, USA
| | - Ramadan Saleh
- Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Sohag University, Sohag, Egypt
- Ajyal IVF Center, Ajyal Hospital, Sohag, Egypt
| | - Armand Zini
- Department of Surgery, McGill University, Montreal, QC, Canada
| | - Mohamed Arafa
- Department of Urology, Hamad Medical Corporation, Doha, Qatar
- Department of Andrology, Sexology & STIs, Cairo University, Cairo, Egypt
- Department of Urology, Weill Cornell Medical-Qatar, Doha, Qatar
| | - Ahmed M. Harraz
- Urology Department, Urology and Nephrology Center, Mansoura University, Mansura, Egypt
- Department of Surgery, Urology Unit, Farwaniya Hospital, Farwaniya, Kuwait
- Department of Urology, Sabah Al Ahmad Urology Center, Kuwait City, Kuwait
| | - Murat Gul
- Department of Urology, Selçuk University School of Medicine, Konya, Turkey
| | | | - Damayanthi Durairajanayagam
- Department of Physiology, Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Selangor, Malaysia
| | - Amarnath Rambhatla
- Department of Urology, Henry Ford Health System, Vattikuti Urology Institute, Detroit, MI, USA
| | - Florence Boitrelle
- 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
| | - Eric Chung
- Department of Urology, Princess Alexandra Hospital, University of Queensland, Brisbane, QLD, Australia
| | - Ponco Birowo
- Department of Urology, Dr. Cipto Mangunkusumo Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Tuncay Toprak
- Department of Urology, Fatih Sultan Mehmet Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Ramy Abou Ghayda
- Urology Institute, University Hospitals, Case Western Reserve University, Cleveland, OH, USA
| | - Rossella Cannarella
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
- Department of Urology, Glickman Urological & Kidney Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Nguyen Ho Vinh Phuoc
- Department of Andrology, Binh Dan Hospital, Ho Chi Minh City, Vietnam
- Department of Urology and Andrology, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam
| | - Fotios Dimitriadis
- Department of Urology, Aristotle University, School of Medicine, Thessaloniki,
| | | | - Ioannis Sokolakis
- Department of Urology, Aristotle University, School of Medicine, Thessaloniki,
| | - Taymour Mostafa
- Department of Andrology, Sexology & STIs, Cairo University, Cairo, Egypt
| | | | - Imad Ziouziou
- Department of Urology, College of Medicine and Pharmacy, Ibn Zohr University, Agadir, Morocco
| | - Shinnosuke Kuroda
- Department of Urology, Glickman Urological & Kidney Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Marion Bendayan
- Reproductive Biology, Fertility Preservation, Andrology, CECOS, Poissy Hospital, Poissy, France
| | - Raneen Sawaid Kaiyal
- Department of Urology, Glickman Urological & Kidney Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Andrian Japari
- Fertility Clinic, Telogorejo Hospital, Semarang, Indonesia
| | - Mara Simopoulou
- Department of Physiology, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Lucia Rocco
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania Luigi Vanvitelli, Caserta, Italy
| | - Nicolas Garrido
- IVI Foundation, Instituto de Investigación Sanitaria La Fe (IIS La Fe), Valencia, Spain
| | - Nazim Gherabi
- Department of Urology, University of Algiers, Algiers, Algeria
| | - Kadir Bocu
- Department of Urology, Silopi State Hospital, Sirnak, Turkey
| | - Oguzhan Kahraman
- Department of Urology, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - Tan V. Le
- Department of Andrology, Binh Dan Hospital, Ho Chi Minh City, Vietnam
- Department of Urology and Andrology, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam
| | - Christine Wyns
- Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, Brussels, Belgium
| | - Kelton Tremellen
- Department of Obstetrics Gynaecology and Reproductive Medicine, Flinders University, South Australia, Australia
| | - Selcuk Sarikaya
- Department of Urology, Gülhane Research and Training Hospital, University of Health Sciences, Ankara, Turkey
| | | | | | - Edmund Ko
- Department of Urology, Loma Linda University Health, Loma Linda, CA, USA
| | - Aldo E. Calogero
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Fahmi Bahar
- Andrology Section, Siloam Sriwijaya Hospital, Palembang, Indonesia
| | - Marlon Martinez
- Section of Urology, Department of Surgery, University of Santo Tomas Hospital, Manila, Philippines
| | - Andrea Crafa
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - 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
| | - Rafael F. Ambar
- Department of Urology, Centro Universitario em Saude do ABC, Santo André, Brazil
- Andrology Group at Ideia Fertil Institute of Human Reproduction, Santo André, Brazil
| | - Giovanni Colpi
- Andrology and IVF Center, Next Fertility Procrea, Lugano, Switzerland
| | | | - 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
| | | | - Ege Can Serefoglu
- Department of Urology, Biruni University School of Medicine, Istanbul, Turkey
| | - Abdullah Alarbid
- Department of Surgery, Urology Unit, Farwaniya Hospital, Farwaniya, Kuwait
| | - Akira Tsujimura
- Department of Urology, Juntendo University Urayasu Hospital, Chiba, Japan
| | - Alireza Kheradmand
- Urology Department, Golestan Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | | | - Angelo Marino
- ANDROS Day Surgery Clinic, Reproductive Medicine Unit, Palermo, Italy
| | - Aram Adamyan
- IVF Department, Astghik Medical Center, Yerevan, Armenia
| | - Birute Zilaitiene
- Institute of Endocrinology, Medical Academy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Cevahir Ozer
- Department of Urology, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - Edoardo Pescatori
- Andrology and Reproductive Medicine Unit, Gynepro Medical, Bologna, Italy
| | - Paraskevi Vogiatzi
- Andromed Health & Reproduction, Fertility & Reproductive Health Diagnostic Center, Athens, Greece
| | - Gian Maria Busetto
- Department of Urology and Renal Transplantation, University of Foggia, Policlinico Riuniti, Foggia, Italy
| | - Giancarlo Balercia
- Department of Endocrinology, Polytechnic University of Marche, Ancona, Italy
| | - Haitham Elbardisi
- Department of Urology, Hamad Medical Corporation, Doha, Qatar
- Department of Andrology, Sexology & STIs, Cairo University, Cairo, Egypt
| | - Hamed Akhavizadegan
- Department of Urology, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Hesamoddin Sajadi
- Department of Andrology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Teheran, Iran
| | - Hisanori Taniguchi
- Department of Urology and Andrology, Kansai Medical University, Hirakata, Osaka, Japan
| | - Hyun Jun Park
- Department of Urology, Pusan National University School of Medicine, Busan, Korea
- Medical Research Institute of Pusan National University Hospital, Busan, Korea
| | | | - Mohamed Al-Marhoon
- Division of Urology, Department of Surgery, Sultan Qaboos University, Muscat, Sultanate of Oman
| | - Mohammad Ali Sadighi Gilani
- Department of Andrology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Teheran, Iran
| | - Naif Alhathal
- King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | | | - Priyank Kothari
- Department of Urology, Topiwala National Medical College, B.Y.L Nair Ch Hospital, Mumbai, India
| | - Nasser Mogharabian
- Sexual Health and Fertility Research Center, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Sava Micic
- Department of Andrology, Uromedica Polyclinic, Belgrade, Serbia
| | - Sheryl Homa
- Department of Biosciences, University of Kent, Canterbury, UK
| | - Sara Darbandi
- Fetal Health Research Center, Hope Generation Foundation, Tehran, Iran
- Gene Therapy and Regenerative Medicine Research Center, Hope Generation Foundation, Tehran, Iran
| | - Tran Quang Tien Long
- Department of Obstetrics and Gynecology, Hanoi Obstetrics and Gynecology Hospital, Hanoi, Vietnam
| | - Wael Zohdy
- Department of Andrology, Sexology & STIs, Cairo University, Cairo, Egypt
| | - Widi Atmoko
- Department of Urology, Dr. Cipto Mangunkusumo Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Marjan Sabbaghian
- Department of Andrology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Teheran, Iran
| | - Wael Ibrahim
- Department of Obstetrics Gynaecology and Reproductive Medicine, Fertility Care Center in Cairo, Cairo, Egypt
| | - Ryan P. Smith
- Department of Urology, University of Virginia School of Medicine, Virginia, USA
| | | | | | | | - Mirko Preto
- Department of Urology, University of Turin, Turin, Italy
| | | | - Saad Mohammed Abumelha
- Division of Urology, Department of Surgery, King Abdulaziz Medical City, Riyadh, Saudi Arabia
| | - Aykut Baser
- Department of Urology, Bandirma Onyedi Eylül University, Balikesir, Turkey
| | - Kaan Aydos
- Department of Urology, Ankara University, Ankara, Turkey
| | | | - Vijay Kumar
- Department of Microbiology, Kurukshetra University, Kurukshetra, India
| | - Teng Aik Ong
- Department of Surgery, University of Malaya, Kuala Lumpur, Malaysia
| | | | - Ricky Adriansjah
- Department of Urology, Faculty of Medicine of Padjadjaran University, Hasan Sadikin General Hospital, Bandung, Indonesia
| | - Saleem A. Banihani
- Department of Medical Laboratory Sciences, Jordan University of Science and Technology, Irbid, Jordan
| | - Kasonde Bowa
- Department of Urology, University of Lusaka, Lusaka, Zambia
| | - Shinichiro Fukuhara
- Department of Urology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | | | - Mohamad Moussa
- Department of Urology, Lebanese University, Beirut, Lebanon
- Department of Urology, Al Zahraa Hospital, UMC, Lebanon
| | - Umut Çağın Ari
- Department of Reproduction, Kafkas University, Kars, Turkey
| | - Chak-Lam Cho
- S. H. Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong Kong
| | | | | | | | - Marco Falcone
- Department of Urology, Molinette Hospital, A.O.U. Città della Salute e della Scienza, University of Turin, Torino, Italy
| | | | - Arif Kalkanli
- Department of Urology, Taksim Education and Research Hospital, Istanbul, Turkey
| | - Keshab Kumar Karna
- Department of Molecular Cell and Cancer Biology, University of Massachusetts Medical School, Worcester, MA, USA
| | - Kareim Khalafalla
- Department of Urology, Hamad Medical Corporation, Doha, Qatar
- Urology Department, University of Texas McGovern Medical School, Houston, TX, USA
- Urology Department, MD Anderson Cancer Center, Houston, TX, USA
| | - Ranjit B. Vishwakarma
- Division of Andrology, Department of Urology, Lilavati Hospital and Research Centre, Mumbai, India
| | - Federica Finocchi
- Department of Endocrinology, Polytechnic University of Marche, Ancona, Italy
| | - Carlo Giulioni
- Department of Urology, Polytechnic University of Marche Region, Ancona, Italy
| | - Erman Ceyhan
- Department of Urology, Faculty of Medicine, Baskent University, Ankara, Turkey
| | - Gökhan Çeker
- Department of Urology, Başakşehir Çam and Sakura City Hospital, Istanbul, Turkey
| | - Chadi Yazbeck
- Obstetrics Gynecology and Reproductive Medicine, Reprogynes Medical Institute, Paris, France
| | - Osvaldo Rajmil
- Department of Andrology, Fundacio Puigvert, Barcelona, Spain
| | - Mehmet Yilmaz
- Asklepios Clinic Triberg, Urology, Freiburg, Germany
| | - Baris Altay
- Department of Urology, Ege University, Izmir, Turkey
| | | | - Kay Seong Ngoo
- Hospital Angkatan Tentera Tuanku Mizan, Kuala Lumpur, Malaysia
| | | | - Gianmaria Salvio
- Department of Endocrinology, Polytechnic University of Marche, Ancona, Italy
| | - Haocheng Lin
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Ates Kadioglu
- Section of Andrology, Department of Urology, Istanbul University, Istanbul, Turkey
| | - Massimiliano Timpano
- Department of Urology, Molinette Hospital, A.O.U. Città della Salute e della Scienza, University of Turin, Torino, Italy
| | - Tomer Avidor-Reiss
- Department of Biological Sciences, University of Toledo, Toledo, OH, USA
- Department of Urology and Transplantation, University of Toledo, Toledo, OH, USA
| | - Lukman Hakim
- Department of Urology, Universitas Airlangga, Rumah Sakit Universitas Airlangga Teaching Hospital, Surabaya, Indonesia
| | - Puneet Sindhwani
- Department of Urology, Universitas Airlangga, Rumah Sakit Universitas Airlangga Teaching Hospital, Surabaya, Indonesia
| | - Giorgio Franco
- Department of Urology, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - Rajender Singh
- Division of Endocrinology, Central Drug Research Institute, Lucknow, India
| | - Filippo Giacone
- Centro HERA, Unità di Medicina della Riproduzione, Sant’Agata Li Battiati, Catania, Italy
| | | | - Raghavender Kosgi
- Department of Urology, Andrology and Renal Transplant, AIG Hospitals, Hyderabad, India
| | - Nikolaos Sofikitis
- Department of Urology, Ioannina University School of Medicine, Ioannina, Greece
| | - Ayad Palani
- Research Centre, University of Garmian, Kalar, Iraq
| | - Gokhan Calik
- Department of Urology, Istanbul Medipol University, Istanbul, Turkey
| | - Deniz Kulaksız
- Department of Obstetrics and Gynecology, University of Health Sciences Kanuni Training and Research Hospital, Trabzon, Turkey
| | - Davor Jezek
- Department for Transfusion Medicine and Transplantation Biology, Reproductive Tissue Bank, University Hospital Zagreb, Zagreb, Croatia
| | - Manaf Al Hashmi
- Department of Urology, Burjeel Hospital, Abu Dhabi, UAE
- Department of Urology, College of Medicine and Health Science, Khalifa University, Abu Dhabi, UAE
| | - Panagiotis Drakopoulos
- Centre for Reproductive Medicine, Universitair Ziekenhuis Brussel, Vrije Universiteit Brussel, Brussels, Belgium
- IVF Athens, Athens, Greece
| | - Huda Omran
- Al Aljenan Medical Center, Pulse Health Training Center, Manama, Kingdom of Bahrain
| | - Sofia Leonardi
- Central Laboratory, Hospital Público Materno Infantil de Salta, Salta, Argentina
| | - Ciler Celik-Ozenci
- Department of Histology and Embryology, Faculty of Medicine, Koç University, Istanbul, Turkey
| | - Nur Dokuzeylül Güngör
- Department of Obstetrics and Gynecology, Reproductive Endocrinology and IVF Unit, School of Medicine, Bahcesehir University, Istanbul, Turkey
| | | | - Toshiyasu Amano
- Department of Urology, Nagano Red Cross Hospital, Nagano, Japan
| | | | | | - Koji Chiba
- Department of Urology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Sunil Jindal
- Department of Andrology and Reproductive Medicine, Jindal Hospital, Meerut, India
| | - Missy Savira
- Department of Urology, Dr. Cipto Mangunkusumo Hospital, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Luca Boeri
- Department of Urology, IRCCS Fondazione Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Edson Borges
- Fertility Assisted Fertilization Center, São Paulo, Brazil
| | - Deepak Gupte
- Department of Urology, Bombay Hospital and Medical Research Center, Mumbai, India
| | - Fatih Gokalp
- Department of Urology, Hatay Mustafa Kemal University, Antakya, Turkey
| | | | - Suks Minhas
- Division of Surgery, Department of Surgery and Cancer, Imperial College, London, UK
| | - Rupin Shah
- Division of Andrology, Department of Urology, Lilavati Hospital and Research Centre, Mumbai, India
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5
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Eisenberg ML, Esteves SC, Lamb DJ, Hotaling JM, Giwercman A, Hwang K, Cheng YS. Male infertility. Nat Rev Dis Primers 2023; 9:49. [PMID: 37709866 DOI: 10.1038/s41572-023-00459-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/09/2023] [Indexed: 09/16/2023]
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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6
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Ceraolo C, Rubano A, Gabrielsen JS. Obesity and Male Infertility: True, True, and Unrelated? Semin Reprod Med 2023; 41:70-79. [PMID: 38198791 DOI: 10.1055/s-0043-1777725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
While the prevalence of obesity has rapidly increased worldwide, there has also been a notable decline in semen parameters over the last several decades. While obesity can negatively impact reproductive hormones, many studies have sought a link between rising obesity and decreased male fertility potential. Nonetheless, few data support a direct link between the two. The focus on obesity as a causative factor in male infertility can potentially result in patient harm through delayed fertility treatment and missed diagnoses. This review investigates the associations between obesity and male infertility and why a potential direct link has been elusive and may not exist. Additionally, indirect mechanisms that may link the two will be reviewed and treatment options for obese infertile men presenting for evaluation will briefly be discussed.
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Affiliation(s)
- Carl Ceraolo
- Department of Urology, University of Rochester, Rochester, New York
| | - Amanda Rubano
- School of Medicine and Dentistry, University of Rochester, Rochester, New York
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7
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Koschker AC, Seyfried F. Comment on: The male patient with obesity undergoing metabolic and bariatric surgery: changes in testosterone levels correlate with weight loss after one-anastomosis gastric bypass and Roux-en-Y gastric bypass. Surg Obes Relat Dis 2023; 19:705-706. [PMID: 36822998 DOI: 10.1016/j.soard.2023.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 01/15/2023] [Indexed: 01/20/2023]
Affiliation(s)
- Ann-Cathrin Koschker
- Dept. of Internal Medicine I, Division of Endocrinology and Diabetology, University Hospital Würzburg, Würzburg, Germany; Dept. Clinical Research & Epidemiology, Comprehensive Heart Failure Center, University Hospital Würzburg, Würzburg, Germany
| | - Florian Seyfried
- Department of General, Visceral, Transplant, Vascular, and Pediatric Surgery, University Hospital Würzburg, Würzburg, Germany
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8
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Abouelgreed TA, Elatreisy A, El-Sherbeiny AF, Abdelaal MA, Saafan T, Shalkamy O, Farag H, Ghoneimy OM, El-Dydamony EM, Ibrahim EH, Amer M, Kutub K, Zamra M, Hussein MA, Koritenah AK, Hefny SA. Long-term effect of sleeve gastrectomy surgery on Hormonal Profile, Semen Parameters and sexual functions of obese infertile men; a prospective observational study. Basic Clin Androl 2023; 33:16. [PMID: 37344792 DOI: 10.1186/s12610-023-00191-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 03/01/2023] [Indexed: 06/23/2023] Open
Abstract
BACKGROUND The effect of bariatric surgery on impaired semen parameters, hormonal profile and sexual function remains controversial to some extent. THE CONTEXT AND PURPOSE OF THE STUDY To look at the long-term effects of sleeve gastrectomy on hormonal profiles, sperm parameters, and sexual function in infertile men with severe obesity. This prospective study included fifty-four obese patients with primary or secondary infertility who were scheduled for sleeve gastrectomy between February 2018 and March 2021. All participants were given a sperm analysis and a serum hormone profile before, 12, and 18 months after surgery. We used the International Index of Erectile Function questionnaire to assess sexual function. RESULTS There was a significant correlation between weight loss after sleeve gastrectomy and improvement in lipid profile (p < 0.05). No significant detectable effect of post-gastrectomy weight loss on patients with diabetes mellitus, hypertension, or obstructive sleep apnea. As regards the hormonal profile, sex hormone binding globulin, total and free testosterone improved significantly after 12- and 18-months following sleeve gastrectomy. There was a significant increase in sperm count and total sperm number during the follow-up after sleeve gastrectomy (p < 0.05), however, there were no significant changes in other semen parameters. Concerning sexual function, sexual desire, erectile function, and satisfaction improved significantly at 12 and 18 months after surgery. CONCLUSION Weight loss through sleeve gastrectomy surgery significantly improves testosterone deficiency, sexual performance, and Sperm count in obese infertile men.
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Affiliation(s)
- Tamer A Abouelgreed
- Department of Urology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt.
| | - Adel Elatreisy
- Department of Urology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Ahmed F El-Sherbeiny
- Department of Andrology, International Islamic Center for Population Study and Research, Al-Azhar University, Cairo, Egypt
| | - Mohamed A Abdelaal
- Department of Urology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Tamer Saafan
- Department of Surgery, Gulf Medical University, Ajman, UAE
| | - Osama Shalkamy
- Department of Urology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Hamdy Farag
- Department of Surgery, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Osama M Ghoneimy
- Department of Urology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Eman M El-Dydamony
- Department of Urology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Eman H Ibrahim
- Gulf Medical University, P.O. Box 11117, Ajman, UAE
- Department of Pathology, Faculty of medicine, Al-Azhar University, Cairo, Egypt
| | - Mohamed Amer
- Department of Dermatology and Andrology, Al-Azhar University, Cairo, Egypt
| | - Khalid Kutub
- Department of Urology, Al sharq hospital, Fujairah, UAE
| | - Mohamed Zamra
- Department of Urology, AlQasemi Hospital, Sharjah, UAE
| | | | - Ayman K Koritenah
- Department of Urology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
| | - Sherin A Hefny
- Department of clinical Pathology, Ministry of Health and Prevention, Dubai, UAE
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9
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Miñambres I, Sardà H, Urgell E, Genua I, Ramos A, Fernández-Ananin S, Balagué C, Sánchez-Quesada JL, Bassas L, Pérez A. Obesity Surgery Improves Hypogonadism and Sexual Function in Men without Effects in Sperm Quality. J Clin Med 2022; 11:jcm11175126. [PMID: 36079056 PMCID: PMC9457146 DOI: 10.3390/jcm11175126] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/23/2022] [Accepted: 08/27/2022] [Indexed: 11/16/2022] Open
Abstract
(1) Background: Obesity is associated with hypogonadism, sexual dysfunction, and impaired fertility in men. However, its effects on semen parameters or sexual function remain debatable. (2) Methods: This paper involves a longitudinal study in men submitted for obesity surgery at a university tertiary hospital. Patients were studied at baseline and at 6, 12, and 18 months after obesity surgery. At each visit, anthropometry measures were collected and hormonal and semen parameters were studied. Sexual function was evaluated with the International Index of Erectile Function (IIEF). (3) Results: A total of 12 patients were included. The average body mass index of patients decreased from 42.37 ± 4.44 to 29.6 ± 3.77 kg/m2 at 18 months after surgery (p < 0.05). Hormonal parameters improved after obesity surgery. The proportion of sperm cells with normal morphology tended to decrease from baseline and became most significant at 18 months (5.83 ± 4.50 vs. 2.82 ± 2.08). No significant changes were found in the remaining semen parameters. Erectile function improved significantly at six months after surgery. (4) Conclusions: The authors believe that, in general, the effects of obesity surgery on fertility may be limited or even deleterious (at least in the short and midterm follow-up).
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Affiliation(s)
- Inka Miñambres
- Endocrinology and Nutrition Department, Hospital de la Santa Creu i Sant Pau, 08041 Barcelona, Spain
- Medicine Department, Universitat Autònoma de Barcelona (UAB), 08193 Barcelona, Spain
- CIBER of Diabetes and Metabolic Diseases (CIBERDEM), 08041 Barcelona, Spain
| | - Helena Sardà
- Endocrinology and Nutrition Department, Hospital de la Santa Creu i Sant Pau, 08041 Barcelona, Spain
- Medicine Department, Universitat Autònoma de Barcelona (UAB), 08193 Barcelona, Spain
| | - Eulalia Urgell
- Biochemistry Department, Hospital de la Santa Creu i Sant Pau, 08041 Barcelona, Spain
| | - Idoia Genua
- Endocrinology and Nutrition Department, Hospital de la Santa Creu i Sant Pau, 08041 Barcelona, Spain
- Medicine Department, Universitat Autònoma de Barcelona (UAB), 08193 Barcelona, Spain
| | - Analía Ramos
- Endocrinology and Nutrition Department, Hospital Germans Trias i Pujol, 08916 Badalona, Spain
| | - Sonia Fernández-Ananin
- General Surgery Department, Hospital de la Santa Creu i Sant Pau, 08041 Barcelona, Spain
| | - Carmen Balagué
- General Surgery Department, Hospital de la Santa Creu i Sant Pau, 08041 Barcelona, Spain
| | - Jose Luis Sánchez-Quesada
- Cardiovascular Biochemistry Group, Research Institute of the Hospital de la Santa Creu i Sant Pau (IIB Sant Pau), 08041 Barcelona, Spain
- Molecular Biology and Biochemistry Department, Faculty of Medicine, Universitat Autònoma de Barcelona (UAB), 08193 Barcelona, Spain
| | - Lluís Bassas
- Andrology Department, Fundació Puigvert, 08025 Barcelona, Spain
- Correspondence: (L.B.); (A.P.); Tel.: +34-935565661 (A.P.)
| | - Antonio Pérez
- Endocrinology and Nutrition Department, Hospital de la Santa Creu i Sant Pau, 08041 Barcelona, Spain
- Medicine Department, Universitat Autònoma de Barcelona (UAB), 08193 Barcelona, Spain
- CIBER of Diabetes and Metabolic Diseases (CIBERDEM), 08041 Barcelona, Spain
- Correspondence: (L.B.); (A.P.); Tel.: +34-935565661 (A.P.)
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10
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Al Qurashi AA, Qadri SH, Lund S, Ansari US, Arif A, Durdana AR, Maryam R, Saadi M, Zohaib M, Khan MK, Waseem A, Dar S, Almas T. The effects of bariatric surgery on male and female fertility: A systematic review and meta-analysis. Ann Med Surg (Lond) 2022; 80:103881. [PMID: 36045779 PMCID: PMC9422049 DOI: 10.1016/j.amsu.2022.103881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 05/24/2022] [Accepted: 05/29/2022] [Indexed: 11/14/2022] Open
Abstract
Currently natural lifestyle modification is recommended over bariatric surgery in the management of infertility in obese men and women, despite natural weight loss often being an ineffective method to both lose and maintain weight loss in these individuals. Through this meta-analysis and systematic review, we provide evidence that bariatric surgery effectively improves fertility outcomes for men and women by measurements of hormone levels and improvements in sexual function index scores. This study demonstrates the importance and even cruciality of bariatric surgery in obese men and women who struggle with reproductive health, especially when finding it difficult to lose and maintain weight. It also proves that it is vital to continue to create and expand our knowledge with evidence-based medicine to help this cohort of patients.
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11
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Adipose Tissue Dysfunction and Obesity-Related Male Hypogonadism. Int J Mol Sci 2022; 23:ijms23158194. [PMID: 35897769 PMCID: PMC9330735 DOI: 10.3390/ijms23158194] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/19/2022] [Accepted: 07/21/2022] [Indexed: 12/12/2022] Open
Abstract
Obesity is a chronic illness associated with several metabolic derangements and comorbidities (i.e., insulin resistance, leptin resistance, diabetes, etc.) and often leads to impaired testicular function and male subfertility. Several mechanisms may indeed negatively affect the hypothalamic–pituitary–gonadal health, such as higher testosterone conversion to estradiol by aromatase activity in the adipose tissue, increased ROS production, and the release of several endocrine molecules affecting the hypothalamus–pituitary–testis axis by both direct and indirect mechanisms. In addition, androgen deficiency could further accelerate adipose tissue expansion and therefore exacerbate obesity, which in turn enhances hypogonadism, thus inducing a vicious cycle. Based on these considerations, we propose an overview on the relationship of adipose tissue dysfunction and male hypogonadism, highlighting the main biological pathways involved and the current therapeutic options to counteract this condition.
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12
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Phan A, Rives-Lange C, Ciangura C, Carette C, Dupont C, Levy R, Bachelot A, Czernichow S. Bariatric surgery and human fertility. ANNALES D'ENDOCRINOLOGIE 2022; 83:196-198. [PMID: 35443158 DOI: 10.1016/j.ando.2022.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Aurélie Phan
- Hôpital Européen Georges Pompidou, service de Nutrition, Centre Spécialisé Obésité (CSO) Ile de France Sud, Paris.
| | - Claire Rives-Lange
- Hôpital Européen Georges Pompidou, service de Nutrition, Centre Spécialisé Obésité (CSO) Ile de France Sud, Paris; Université Paris Cité, Paris
| | - Cécile Ciangura
- Hôpital Pitié Salpêtrière, service de Nutrition, Centre Spécialisé Obésité (CSO) Ile de France Centre; APHP, Paris
| | - Claire Carette
- Hôpital Européen Georges Pompidou, service de Nutrition, Centre Spécialisé Obésité (CSO) Ile de France Sud, Paris; Université Paris Cité, Paris
| | - Charlotte Dupont
- Sorbonne Université, INSERM, Centre de Recherche St-Antoine, CRSA, F-75012 Paris, France; Service de Biologie de la Reproduction CECOS, Hôpital Tenon, AP-HP.Sorbonne-Université, 75020 Paris, France
| | - Rachel Levy
- Sorbonne Université, INSERM, Centre de Recherche St-Antoine, CRSA, F-75012 Paris, France; Service de Biologie de la Reproduction CECOS, Hôpital Tenon, AP-HP.Sorbonne-Université, 75020 Paris, France
| | - Anne Bachelot
- Hôpitaux Pitié Salpêtrière, service d'Endocrinologie et Médecin de la Reproduction, IE3M, Centre de référence des Maladies Endocriniennes Rares de la Croissance et du Développement, Centre de Maladies Gynécologiques Rares, Institute of Cardiometabolism and Nutrition, ICAN, Sorbonne université, Paris
| | - Sébastien Czernichow
- Hôpital Européen Georges Pompidou, service de Nutrition, Centre Spécialisé Obésité (CSO) Ile de France Sud, Paris; Université Paris Cité, Paris
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13
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Bariatric Surgery Does Not Improve Semen Quality: Evidence from a Meta-analysis. Obes Surg 2022; 32:1341-1350. [PMID: 35143010 DOI: 10.1007/s11695-022-05901-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/31/2021] [Accepted: 01/13/2022] [Indexed: 12/29/2022]
Abstract
The meta-analysis aimed to explore the possible relationship between bariatric surgery and semen quality. PubMed, EMBASE, and CENTRAL were searched from database inception through October 28, 2021. Articles were eligible for inclusion if they evaluated the impact pre- and post-bariatric surgery on semen parameters. A total of 9 studies with 218 patients were found. The mean preoperative age distribution of the patients included centralized from 18 to 50 years, and the mean pre-op BMI ranged from 36.7 to 70.5 kg/m2. The follow-up period ranged from 6 to 24 months. The results revealed that bariatric surgery had no significant effect on sperm volume, concentration, total count, morphology, total motility, progressive motility, viability, semen pH, and semen leukocytes. Bariatric surgery does not improve semen quality in obese males.
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14
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15
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Razzaq A, Soomro FH, Siddiq G, Khizar S, Ali Khan M. Decrease in Sperm Count After Bariatric Surgery: Case Reports. Cureus 2021; 13:e20388. [PMID: 34926094 PMCID: PMC8671071 DOI: 10.7759/cureus.20388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/13/2021] [Indexed: 12/02/2022] Open
Abstract
Morbid obesity is associated with a large number of complications, including infertility; weight loss can help to improve fertility and increase the number of sperm in males. However, two of our patients developed azoospermia after bariatric surgery for weight reduction. A 30-year-old male presented to the outpatient department (OPD) with a BMI of 81.2 kg/m2 (258 kg) with no known co-morbidities. The patient had a normal sex life and one child. After bariatric surgery, he noticed a change in the consistency of his semen and azoospermia. In the second case, a 48-year-old man presented to the OPD with a BMI of 52 kg/m2 (189 kg) with no known co-morbidities. He had three children. He underwent bariatric surgery for weight loss and, after one year, he developed azoospermia. Bariatric surgery is a lifesaving procedure for morbidly obese patients and helps in restoring normal daily activities. This weight reduction surgery helps in decreasing blood pressure, increasing glycemic control and improving sexual activity. However, bariatric surgery may be followed by a further decline in semen parameters, resulting in azoospermia and severe oligoasthenoteratozoospermia. This is caused by the combined effects of two different processes: 1) the subduing of the negative effects of obesity, and 2) a deficiency of nutrients along with the release of some harmful substances. Bariatric surgery patients should be informed about the risk of complications and about the possibility for cryopreservation of sperm. In rare cases, bariatric surgery can result in a decrease in sperm count and infertility in males.
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Affiliation(s)
- Aneela Razzaq
- Surgery, Wexford General Hospital, Wexford, IRL.,General Surgery, Shifa International Hospital, Islamabad, PAK
| | - Faiza H Soomro
- General Surgery, The Dudley Group National Health Service Foundation Trust, Dudley, GBR
| | - Ghulam Siddiq
- General Surgery, Shifa International Hospital, Islamabad, PAK
| | - Samina Khizar
- General Surgery, Shifa International Hospital, Islamabad, PAK
| | - Murad Ali Khan
- General Surgery, Shifa International Hospital, Islamabad, PAK
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16
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Farkouh A, Finelli R, Agarwal A. Beyond conventional sperm parameters: the role of sperm DNA fragmentation in male infertility. Minerva Endocrinol (Torino) 2021; 47:23-37. [PMID: 34881857 DOI: 10.23736/s2724-6507.21.03623-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Infertility is a condition that widely affects the couples all over the world. In this regard, sperm DNA fragmentation can lead to harmful reproductive consequences, including male infertility and poor outcomes after assisted reproductive techniques. The investigation of SDF in male infertility diagnostics has constantly increased over time, becoming more common in clinical practice with the recent publication of several guidelines regarding its testing. This narrative review aims to provide a comprehensive overview of the pathogenesis and causes of sperm DNA fragmentation, as well as the assays which are more commonly performed for testing. Moreover, we discussed the most recently published evidence regarding the use of SDF testing in clinical practice, highlighting the implications of high sperm DNA fragmentation rate on human reproduction, and the therapeutic approaches for the clinical management of infertile patients. Our review confirms a significant harmful impact of sperm DNA fragmentation on reproduction, and points out several interventions which can be applied in clinics to reduce sperm DNA fragmentation and improve reproductive outcomes. Sperm DNA fragmentation has been shown to adversely impact male fertility potential. As high sperm DNA fragmentation levels have been associated with poor reproductive outcomes, its testing may significantly help clinicians in defining the best therapeutic strategy for infertile patients.
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Affiliation(s)
- Ala'a Farkouh
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Renata Finelli
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA -
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17
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Abstract
The purpose of this American Society for Reproductive Medicine Practice Committee report is to provide clinicians with principles and strategies for the evaluation and treatment of couples with infertility associated with obesity. This revised document replaces the Practice Committee document titled "Obesity and reproduction: an educational bulletin" last published in 2015 (Fertil Steril 2015;104:1116-26).
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Affiliation(s)
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- American Society for Reproductive Medicine, Birmingham, Alabama
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18
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Gomez G, Berger A, Kathrins M. Secondary azoospermia after sleeve gastrectomy: a case report. F S Rep 2021; 2:245-248. [PMID: 34278361 PMCID: PMC8267378 DOI: 10.1016/j.xfre.2021.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 04/20/2021] [Accepted: 04/26/2021] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE To report the first case of secondary azoospermia after sleeve gastrectomy. DESIGN Case report. SETTING Academic male infertility clinic. PATIENTS A 33-year-old man with secondary azoospermia and primary testicular failure with testosterone deficiency after laparoscopic sleeve gastrectomy. INTERVENTIONS Hormonal therapy with anastrozole for 10 months and diagnostic testicular biopsy. MAIN OUTCOME MEASURES Semen analyses and testicular histopathology. RESULTS Non-obstructive azoospermia persisted at 20 months after surgery despite hormonal therapy with anastrozole. Testicular histopathology revealed the presence of Sertoli cells only. CONCLUSIONS Although further research is need to determine the relationship between sleeve gastrectomy and secondary infertility, men should be informed of the potentially deleterious effects of this surgery on semen parameters.
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Affiliation(s)
- Gricelda Gomez
- Division of Urology, Brigham and Women’s Hospital, Boston, Massachusetts
| | - Alexandra Berger
- Division of Urology, Brigham and Women’s Hospital, Boston, Massachusetts
| | - Martin Kathrins
- Division of Urology, Brigham and Women’s Hospital, Boston, Massachusetts
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19
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Avidor-Reiss T, Carr A, Fishman EL. The sperm centrioles. Mol Cell Endocrinol 2020; 518:110987. [PMID: 32810575 PMCID: PMC7606549 DOI: 10.1016/j.mce.2020.110987] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 08/07/2020] [Accepted: 08/10/2020] [Indexed: 12/13/2022]
Abstract
Centrioles are eukaryotic subcellular structures that produce and regulate massive cytoskeleton superstructures. They form centrosomes and cilia, regulate new centriole formation, anchor cilia to the cell, and regulate cilia function. These basic centriolar functions are executed in sperm cells during their amplification from spermatogonial stem cells during their differentiation to spermatozoa, and finally, after fertilization, when the sperm fuses with the egg. However, sperm centrioles exhibit many unique characteristics not commonly observed in other cell types, including structural remodeling, centriole-flagellum transition zone migration, and cell membrane association during meiosis. Here, we discuss five roles of sperm centrioles: orchestrating early spermatogenic cell divisions, forming the spermatozoon flagella, linking the spermatozoon head and tail, controlling sperm tail beating, and organizing the cytoskeleton of the zygote post-fertilization. We present the historic discovery of the centriole as a sperm factor that initiates embryogenesis, and recent genetic studies in humans and other mammals evaluating the current evidence for the five functions of sperm centrioles. We also examine information connecting the various sperm centriole functions to distinct clinical phenotypes. The emerging picture is that centrioles are essential sperm components with remarkable functional diversity and specialization that will require extensive and in-depth future studies.
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Affiliation(s)
- Tomer Avidor-Reiss
- Department of Biological Sciences, College of Natural Sciences and Mathematics, University of Toledo, Toledo, OH, USA; Department of Urology, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA.
| | - Alexa Carr
- Department of Biological Sciences, College of Natural Sciences and Mathematics, University of Toledo, Toledo, OH, USA
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Agarwal A, Majzoub A, Baskaran S, Panner Selvam MK, Cho CL, Henkel R, Finelli R, Leisegang K, Sengupta P, Barbarosie C, Parekh N, Alves MG, Ko E, Arafa M, Tadros N, Ramasamy R, Kavoussi P, Ambar R, Kuchakulla M, Robert KA, Iovine C, Durairajanayagam D, Jindal S, Shah R. Sperm DNA Fragmentation: A New Guideline for Clinicians. World J Mens Health 2020; 38:412-471. [PMID: 32777871 PMCID: PMC7502318 DOI: 10.5534/wjmh.200128] [Citation(s) in RCA: 120] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 07/13/2020] [Accepted: 07/13/2020] [Indexed: 12/13/2022] Open
Abstract
Sperm DNA integrity is crucial for fertilization and development of healthy offspring. The spermatozoon undergoes extensive molecular remodeling of its nucleus during later phases of spermatogenesis, which imparts compaction and protects the genetic content. Testicular (defective maturation and abortive apoptosis) and post-testicular (oxidative stress) mechanisms are implicated in the etiology of sperm DNA fragmentation (SDF), which affects both natural and assisted reproduction. Several clinical and environmental factors are known to negatively impact sperm DNA integrity. An increasing number of reports emphasizes the direct relationship between sperm DNA damage and male infertility. Currently, several assays are available to assess sperm DNA damage, however, routine assessment of SDF in clinical practice is not recommended by professional organizations. This article provides an overview of SDF types, origin and comparative analysis of various SDF assays while primarily focusing on the clinical indications of SDF testing. Importantly, we report four clinical cases where SDF testing had played a significant role in improving fertility outcome. In light of these clinical case reports and recent scientific evidence, this review provides expert recommendations on SDF testing and examines the advantages and drawbacks of the clinical utility of SDF testing using Strength-Weaknesses-Opportunities-Threats (SWOT) analysis.
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Affiliation(s)
- Ashok Agarwal
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA.
| | - Ahmad Majzoub
- Department of Urology, Hamad Medical Corporation, Doha, Qatar
- Department of Urology, Weill Cornell Medicine - Qatar, Doha, Qatar
| | - Saradha Baskaran
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | | | - Chak Lam Cho
- Department of Surgery, Union Hospital, Hong Kong
- S. H. Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong Kong
| | - 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
| | - Renata Finelli
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Kristian Leisegang
- School of Natural Medicine, Faculty of Community and Health Sciences, University of the Western Cape, Bellville, South Africa
| | - Pallav Sengupta
- Department of Physiology, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jenjarom, Malaysia
| | - Catalina Barbarosie
- Department of Genetics, Faculty of Biology, University of Bucharest, Bucharest, Romania
| | - Neel Parekh
- Department of Urology, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Marco G Alves
- Department of Microscopy, Laboratory of Cell Biology & Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Edmund Ko
- Department of Urology, Loma Linda University, Loma Linda, CA, USA
| | - Mohamed Arafa
- Department of Urology, Hamad Medical Corporation, Doha, Qatar
- Andrology Department, Cairo University, Giza, Egypt
| | - Nicholas Tadros
- Division of Urology, Southern Illinois University School of Medicine, Springfield, IL, USA
| | | | - Parviz Kavoussi
- Austin Fertility & Reproductive Medicine/Westlake IVF, Austin, TX, USA
| | - Rafael Ambar
- Urology Department of Centro Universitario em Saude do ABC, Santo André, Brazil
| | | | - Kathy Amy Robert
- American Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
| | - Concetta Iovine
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | | | - Sunil Jindal
- Department of Andrology and Reproductive Medicine, Jindal Hospital, Meerut, India
| | - Rupin Shah
- Department of Urology, Lilavati Hospital and Research Centre, Mumbai, India
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21
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Bariatric Surgery Impact on Reproductive Hormones, Semen Analysis, and Sperm DNA Fragmentation in Men with Severe Obesity: Prospective Study. Obes Surg 2020; 30:4840-4851. [PMID: 32700180 DOI: 10.1007/s11695-020-04851-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 07/06/2020] [Accepted: 07/08/2020] [Indexed: 01/22/2023]
Abstract
PURPOSE Growing evidence in the literature suggests that obesity is capable of altering reproductive hormone levels and male fertility. Effects on classic semen parameters and sperm DNA fragmentation (SDF), however, have not been properly established. Additionally, the impact of bariatric surgery (BS) on those parameters is still controversial. MATERIALS AND METHODS In Phase 1, 42 patients with obesity and 32 fertile controls were submitted to reproductive hormone evaluation, semen analysis, and SDF testing. In Phase 2, patients with obesity were submitted to BS or clinical follow-up and were invited to 6-month revaluation. RESULTS Phase 1: Men with obesity have higher levels of estradiol, LH, and FSH and lower levels of total testosterone (TT) when compared with eutrophic fertile men. Additionally, they present worse semen parameters, with reduction in ejaculated volume and sperm concentration, worse sperm motility and morphology, and higher SDF. Phase 2: 32 patients returned to revaluation. Eighteen were submitted to BS (group S) and 14 were not submitted to any specific therapeutic regimen (group NS). In group S, TT more than doubled after surgery (294.5 to 604 ng/dL, p < 0.0001). Worsening of sperm concentration and total ejaculated sperm count were also noticed, and 2 patients became azoospermic after BS. SDF, however, improved after the procedure. No changes in the variables studied were observed in non-operated patients. CONCLUSION In this prospective study, we have found that BS results in improvements in reproductive hormone levels and SDF after 6-month follow-up. Sperm concentration, however, reduced after the procedure.
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Behaviour of plasma citrulline after bariatric surgery in the BARIASPERM cohort. Clin Nutr 2020; 40:505-510. [PMID: 32891457 DOI: 10.1016/j.clnu.2020.05.045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 05/28/2020] [Accepted: 05/30/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Plasma citrulline is currently used in clinical practice as a marker of small bowel functional mass. Behaviour of plasma citrulline after bariatric surgery and its link with post-operative outcome are still poorly understood. OBJECTIVE Primary objective was to compare plasma citrulline 12 months after two types of bariatric surgery with pre-operative concentrations. Secondary objectives were to search for correlation between plasma citrulline variation and body weight and fat mass loss. DESIGN This is an ancillary study of the BARIASPERM study. Forty-six adult men (mean age 38.9 ± 7.9 years) who underwent gastric bypass (GB, n = 20) or sleeve gastrectomy (SG, n = 26) were included in this prospective study. Plasma citrulline was measured at baseline, 6 months and 12 months after surgery, as well as total body weight and fat mass measured by dual x-ray absorptiometry (DEXA). RESULTS Plasma citrulline increased significantly 12 months after surgery, both after gastric bypass and sleeve gastrectomy (respectively 30.2% [18.3-42.2] and 17.8% [5.8-29.7]). The increase was significantly higher after GB than after SG (p = 0.02) while total body weight and fat mass loss were not significantly different between GB and SG. The increase in plasma citrulline levels tended to be positively correlated with both weight and fat mass loss however the association did not reach statistical significance (p = 0.07 and p = 0.06 respectively). CONCLUSION These results confirm the increase in plasma citrulline after GB published in two previous small studies. Citrulline also significantly increased after SG, and in spite of similar weight loss obtained with both surgery types, citrulline increase was higher after GB than SG. This suggests different modifications of intestinal functional mass after these two different techniques.
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Cardona Maya WD. Weight loss induced by bariatric surgery and seminal quality. ACTA ACUST UNITED AC 2020; 67:351-352. [PMID: 32036045 DOI: 10.1016/j.endinu.2019.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 07/31/2019] [Accepted: 10/30/2019] [Indexed: 10/25/2022]
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Renck AC, Trarbach EB, Frade Costa EM. Does the normalization of body weight improve male fertility? INT J VITAM NUTR RES 2020; 91:1-2. [PMID: 31976827 DOI: 10.1024/0300-9831/a000638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
| | - Ericka Barbosa Trarbach
- Laboratory of Cellular and Molecular Endocrinology LIM-25, University of São Paulo Medical School, São Paulo, Brazil
| | - Elaine Maria Frade Costa
- Department of Endocrinology, Hospital das Clínicas, School of Medicine, University of São Paulo, Brazil
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25
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Sultan S, Patel AG, El-Hassani S, Whitelaw B, Leca BM, Vincent RP, le Roux CW, Rubino F, Aywlin SJB, Dimitriadis GK. Male Obesity Associated Gonadal Dysfunction and the Role of Bariatric Surgery. Front Endocrinol (Lausanne) 2020; 11:408. [PMID: 32636807 PMCID: PMC7318874 DOI: 10.3389/fendo.2020.00408] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 05/20/2020] [Indexed: 01/01/2023] Open
Abstract
Obesity is an ever growing pandemic and a prevalent problem among men of reproductive age that can both cause and exacerbate male-factor infertility by means of endocrine abnormalities, associated comorbidities, and direct effects on the precision and throughput of spermatogenesis. Robust epidemiologic, clinical, genetic, epigenetic, and preclinical data support these findings. Clinical studies on the impact of medically induced weight loss on serum testosterone concentrations and spermatogenesis is promising but may show differential and unsustainable results. In contrast, literature has demonstrated that weight loss after bariatric surgery is correlated with an increase in serum testosterone concentrations that is superior than that obtained with only lifestyle modifications, supporting a further metabolic benefit from surgery that may be specific to the male reproductive system. The data on sperm and semen parameters is controversial to date. Emerging evidence in the burgeoning field of genetics and epigenetics has demonstrated that paternal obesity can affect offspring metabolic and reproductive phenotypes by means of epigenetic reprogramming of spermatogonial stem cells. Understanding the impact of this reprogramming is critical to a comprehensive view of the impact of obesity on subsequent generations. Furthermore, conveying the potential impact of these lifestyle changes on future progeny can serve as a powerful tool for obese men to modify their behavior. Healthcare professionals treating male infertility and obesity need to adapt their practice to assimilate these new findings to better counsel men about the importance of paternal preconception health and the impact of novel non-medical therapeutic interventions. Herein, we summarize the pathophysiology of obesity on the male reproductive system and emerging evidence regarding the potential role of bariatric surgery as treatment of male obesity-associated gonadal dysfunction.
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Affiliation(s)
- Sana Sultan
- Department of Endocrinology and Metabolic Medicine, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Ameet G. Patel
- Department of Minimal Access Surgery, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Shamsi El-Hassani
- Minimal Access and Bariatric Unit, Princess Royal University Hospital, King's College Hospital NHS Foundation Trust, Orpington, United Kingdom
| | - Benjamin Whitelaw
- Department of Endocrinology and Metabolic Medicine, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Bianca M. Leca
- Department of Endocrinology and Metabolic Medicine, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Royce P. Vincent
- Department of Clinical Biochemistry, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Carel W. le Roux
- Diabetes Complication Research Centre, School of Medicine and Medical Science, UCD Conway Institute, University College Dublin, Belfield, Ireland
| | - Francesco Rubino
- Department of Minimal Access Surgery, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Simon J. B. Aywlin
- Department of Endocrinology and Metabolic Medicine, King's College Hospital NHS Foundation Trust, London, United Kingdom
| | - Georgios K. Dimitriadis
- Department of Endocrinology and Metabolic Medicine, King's College Hospital NHS Foundation Trust, London, United Kingdom
- *Correspondence: Georgios K. Dimitriadis
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