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male infertility and metabolic syndrom

Mario Montanino Oliva, Elisa Minutolo, Assunta Lippa, Paola Iaconianni, Alberto Vaiarelli
This prospective longitudinal study investigated the effects of a dietary supplement in patients affected by reduced sperm motility (asthenospermic males) with metabolic syndrome. The product tested was Andrositol®, which contains myoinositol (MI) as principal compound, in association with other molecules, and the parameters evaluated were semen characteristics as well as hormone and metabolic profiles. The inclusion criteria were subjects aged over 18 years, with asthenospermia and metabolic syndrome. The exclusion criteria were presence of cryptorchidism, varicocele, and prostatitis...
2016: International Journal of Endocrinology
Andrea Di Nisio, Maria Santa Rocca, Gian Paolo Fadini, Luca De Toni, Giorgio Marcuzzo, Maria Cristina Marescotti, Marta Sanna, Mario Plebani, Roberto Vettor, Angelo Avogaro, Carlo Foresta
OBJECTIVE: Identification of the novel endocrine role of osteocalcin (OC) and its receptor GPRC6A has given rise to a new branch of research in OC/GPRC6A axis related to glucose metabolism. GPRC6A- and OC-deficient mice share features of the metabolic syndrome, in addition to male infertility. Recently, the polymorphism rs2274911 in GPRC6A was shown to be associated with testicular impairment. We aimed to investigate the role of rs2274911 polymorphism in glucose and lipid metabolism in a cohort of normal weight and obese subjects DESIGN, PATIENTS, SETTINGS: A total of 392 male and females, including 218 obese patients and 174 age-matched normal weight controls, were retrospectively selected...
October 1, 2016: Clinical Endocrinology
E Ventimiglia, P Capogrosso, M Colicchia, L Boeri, A Serino, G Castagna, M C Clementi, G La Croce, C Regina, M Bianchi, V Mirone, R Damiano, F Montorsi, A Salonia
Despite complex interactions between obesity, dyslipidemia, hyperinsulinaemia, and the reproductive axis, the impact of metabolic syndrome on human male reproductive function has not been analysed comprehensively. Complete demographic, clinical, and laboratory data from 1337 consecutive primary infertile men were analysed. Health-significant comorbidities were scored with the Charlson Comorbidity Index (categorised 0 vs. 1 vs. 2 or higher). NCEP-ATPIII criteria were used to define metabolic syndrome. Semen analysis values were assessed based on the 2010 World Health Organisation (WHO) reference criteria...
September 2016: Andrology
Sarita Sanke, Ram Chander, Anju Jain, Taru Garg, Pravesh Yadav
IMPORTANCE: Early androgenetic alopecia (AGA) is patterned hair loss occurring before age 30 years. Early AGA in men is frequently reported as the phenotypic equivalent of polycystic ovarian syndrome (PCOS) in women, which carries the risk of developing obesity, metabolic syndrome, and cardiovascular diseases. Very few studies have been conducted to evaluate this. OBJECTIVE: To study the hormonal profile of men with early AGA and to evaluate if early AGA in men can be considered as the phenotypic equivalent of PCOS, the associated risks of which are well known...
September 1, 2016: JAMA Dermatology
A Ferramosca, A Conte, N Moscatelli, V Zara
Recent evidences have linked abdominal obesity, insulin resistance, and dyslipidemia to male infertility. Since a defective energy metabolism may play an important role in the impairment of sperm quality, the aim of this study is to investigate the sperm energetic metabolism in rats fed with a high-fat diet, an animal model associated with metabolic syndrome development. Sexually mature male Sprague-Dawley rats were divided into two groups and fed for 4 weeks a standard diet (control group) or a diet enriched in 35% of fat (high fat group)...
May 2016: Andrology
M S Rocca, V Pecile, L Cleva, E Speltra, R Selice, A Di Mambro, C Foresta, A Ferlin
The Klinefelter syndrome (KS) is the most frequent sex chromosomal disorder in males, characterized by at least one supernumerary X chromosome (most frequent karyotype 47,XXY). This syndrome presents with a broad range of phenotypes. The common characteristics include small testes and infertility, but KS subjects are at increased risk of hypogonadism, cognitive dysfunction, obesity, diabetes, metabolic syndrome, osteoporosis, and autoimmune disorders, which are present in variable proportion. Although part of the clinical variability might be linked to a different degree of testicular function observed in KS patients, genetic mechanisms of the supernumerary X chromosome might contribute...
March 2016: Andrology
Giulia Rastrelli, Giovanni Corona, Mario Maggi
Prolactin (PRL) has been long deemed as a hormone involved only in female reproduction. However, PRL is a surprising hormone and, since its identification in the 1970s, its attributed functions have greatly increased. However, its specific role in male health is still widely unknown. Recently, low PRL has been associated with reduced ejaculate and seminal vesicle volume in infertile subjects. In addition, in men consulting for sexual dysfunction, hypoprolactinemia has been associated with erectile dysfunction and premature ejaculation, findings further confirmed in the general European population and infertile men...
September 2015: Reviews in Endocrine & Metabolic Disorders
Aurélie Vega, Emmanuelle Martinot, Marine Baptissart, Angélique De Haze, Frederic Vaz, Wim Kulik, Christelle Damon-Soubeyrand, Silvère Baron, Françoise Caira, David H Volle
Bile acids have recently been demonstrated as molecules with endocrine activities controlling several physiological functions such as immunity and glucose homeostases. They act mainly through two receptors, the nuclear receptor Farnesol-X-Receptor alpha (FXRα) and the G-protein coupled receptor (TGR5). These recent studies have led to the idea that molecules derived from bile acids (BAs) and targeting their receptors must be good targets for treatment of metabolic diseases such as obesity or diabetes. Thus it might be important to decipher the potential long term impact of such treatment on different physiological functions...
2015: PloS One
Michael J Bertoldo, Melanie Faure, Joëlle Dupont, Pascal Froment
From C. elegans to mammals (including humans), nutrition and energy metabolism significantly influence reproduction. At the cellular level, some detectors of energy status indicate whether energy reserves are abundant (obesity), or poor (diet restriction). One of these detectors is AMPK (5' AMP-activated protein kinase), a protein kinase activated by ATP deficiency but also by several natural substances such as polyphenols or synthetic molecules like metformin, used in the treatment of insulin resistance. AMPK is expressed in muscle and liver, but also in the ovary and testis...
2015: Frontiers in Neuroscience
Xiang Chen, Chao Hu, Jican Dai, Lei Chen
Traditional Chinese medicine (TCM) is an important treatment for male infertility, and its application to therapy is dependent on differentiation of TCM syndromes. This study aims to investigate the changes in metabolites and metabolic pathways in infertile males with Kidney-Yang Deficiency syndrome (KYDS) via metabolomics approaches. Seminal plasma samples were collected from 18 infertile males with KYDS and 18 fertile males. Liquid chromatography and mass spectrometry were used to characterize metabolomics profiles...
2015: Evidence-based Complementary and Alternative Medicine: ECAM
Marco D'Aurora, Alberto Ferlin, Marta Di Nicola, Andrea Garolla, Luca De Toni, Sara Franchi, Giandomenico Palka, Carlo Foresta, Liborio Stuppia, Valentina Gatta
BACKGROUND: Klinefelter Syndrome (KS) is the most common abnormality of sex chromosomes (47,XXY) and represents the first genetic cause of male infertility. Mechanisms leading to KS testis degeneration are still not completely defined but considered to be mainly the result of germ cells loss. In order to unravel the molecular basis of global testis dysfunction in KS patients, we performed a transcriptome analysis on testis biopsies obtained from 6 azoospermic non-mosaic KS patients and 3 control subjects...
2015: BMC Genomics
Aleksandra Konieczna, Aleksandra Rutkowska, Dominik Rachoń
Bisphenol A (BPA) belongs to chemicals that are produced in large quantities worldwide. It is commonly used as monomer in polycarbonate synthesis, plasticizer in the production of epoxy resins, as well as an additive for the elimination of surfeit of hydrochloric acid during the polyvinyl chloride (PVC) production. BPA is not only used in the production of plastics intended to a direct contact with food, including plastic packaging and kitchenware, but also in inner coatings of cans and jar caps. There are various routes of human exposure to this substance such as oral, by inhalation and transdermal...
2015: Roczniki Państwowego Zakładu Higieny
Panagiotis Filis, Nalin Nagrath, Margaret Fraser, David C Hay, John P Iredale, Peter O'Shaughnessy, Paul A Fowler
CONTEXT: Maternal smoking during pregnancy has adverse effects on the offspring (eg, increased likelihood of metabolic syndrome and infertility), which may involve alterations in fetal liver function. OBJECTIVE: Our aim was to analyze, for the first time, the human fetal liver proteome to identify pathways affected by maternal smoking. DESIGN: Fetal liver proteins extracted from elective second trimester pregnancy terminations (12-16 weeks of gestation) were divided in four balanced groups based on sex and maternal smoking...
June 2015: Journal of Clinical Endocrinology and Metabolism
Marco D'Aurora, Alberto Ferlin, Marta Di Nicola, Andrea Garolla, Luca De Toni, Sara Franchi, Giandomenico Palka, Carlo Foresta, Liborio Stuppia, Valentina Gatta
BACKGROUND: Klinefelter Syndrome (KS) is the most common abnormality of sex chromosomes (47,XXY) and represents the first genetic cause of male infertility. Mechanisms leading to KS testis degeneration are still not completely defined but considered to be mainly the result of germ cells loss. In order to unravel the molecular basis of global testis dysfunction in KS patients, we performed a transcriptome analysis on testis biopsies obtained from 6 azoospermic non-mosaic KS patients and 3 control subjects...
2015: BMC Genomics
Nicole O McPherson, Julie A Owens, Tod Fullston, Michelle Lane
Obesity and type 2 diabetes are increasingly prevalent across all demographics. Paternal obesity in humans and rodents can program obesity and impair insulin sensitivity in female offspring. It remains to be determined whether these perturbed offspring phenotypes can be improved through targeted lifestyle interventions in the obese father. Using a mouse model, we demonstrate that diet or exercise interventions for 8 wk (2 rounds of spermatogenesis) in obese founder males restores insulin sensitivity and normalized adiposity in female offspring...
May 1, 2015: American Journal of Physiology. Endocrinology and Metabolism
Vijayalakshmi Venkatesan, Soundarya Lakshmi Madhira
In recent times, infertility among both man and woman has become a major concern affecting about 20 per cent of the population worldwide and has been attributed in part to several aetiological factors such as changes in lifestyle, which includes sedentary life, dietary habits, sleep anomalies, environmental pollution, etc. Assisted reproductive technologies (ART) have come to the rescue of many such couples, but presence of metabolic disorders such as obesity, diabetes with insulin resistance (IR) and its secondary complications (micro- and macro-vascular complications), become confounders to the outcome of ART...
November 2014: Indian Journal of Medical Research
Christopher D Morrison, Robert E Brannigan
Metabolic syndrome is a compilation of symptoms including central obesity, insulin resistance, dyslipidemia, and hypertension. Initially used to predict cardiovascular disease, it is now clear that the molecular and physiologic abnormalities seen in metabolic syndrome extend well beyond the cardiovascular system. Growing evidence has linked metabolic syndrome and its individual symptoms to the increasing prevalence of male infertility. This manuscript reviews the recent evidence connecting metabolic syndrome to male infertility as well as the underlying pathophysiology...
May 2015: Best Practice & Research. Clinical Obstetrics & Gynaecology
Sara Marchiani, Linda Vignozzi, Sandra Filippi, Bruna Gurrieri, Paolo Comeglio, Annamaria Morelli, Giovanna Danza, Gianluca Bartolucci, Mario Maggi, Elisabetta Baldi
The influence of metabolic syndrome (MetS) on sperm quality and function is debated. Using a well-established high fat diet (HFD) rabbit model resembling human MetS, including development of hypogonadism, we demonstrate that HFD decreased sperm motility, morphology and acrosome reaction in response to progesterone and increased sperm cholesterol content. All the above parameters were associated with most MetS features, its severity and plasma testosterone (T) at univariate analysis. After T adjustment, sperm morphology and motility retained a significant association, respectively, with mean arterial pressure and circulating cholesterol levels...
February 5, 2015: Molecular and Cellular Endocrinology
Ignacio Rosety, Sonia Elosegui, María T Pery, Gabriel Fornieles, Jesús M Rosety, Antonio J Díaz, Antonia Rodríguez-Pareja, Francisco Brenes, Manuel Rosety-Rodríguez, Francisco J Ordonez, Miguel A Rosety
BACKGROUND: Abdominal obesity, metabolic syndrome (MS) and oxidative stress may impair seminal quality leading to derangements in fertility. AIM: To identify an association between abdominal obesity and markers of seminal oxidative damage in adults with MS. MATERIAL AND METHODS: Seventy males aged 25 to 40 years, with MS according to ATP-III criteria volunteered for this cross-sectional study. The control group included 70 healthy and normal weight adults...
June 2014: Revista Médica de Chile
Brooke Tata, Lukas Huijbregts, Sandrine Jacquier, Zsolt Csaba, Emmanuelle Genin, Vincent Meyer, Sofia Leka, Joelle Dupont, Perrine Charles, Didier Chevenne, Jean-Claude Carel, Juliane Léger, Nicolas de Roux
Characterization of the genetic defects causing gonadotropic deficiency has made a major contribution to elucidation of the fundamental role of Kisspeptins and Neurokinin B in puberty onset and reproduction. The absence of puberty may also reveal neurodevelopmental disorders caused by molecular defects in various cellular pathways. Investigations of these neurodevelopmental disorders may provide information about the neuronal processes controlling puberty onset and reproductive capacity. We describe here a new syndrome observed in three brothers, which involves gonadotropic axis deficiency, central hypothyroidism, peripheral demyelinating sensorimotor polyneuropathy, mental retardation, and profound hypoglycemia, progressing to nonautoimmune insulin-dependent diabetes mellitus...
September 2014: PLoS Biology
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