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https://www.readbyqxmd.com/read/30095585/meta-analysis-reveals-the-association-between-male-occupational-exposure-to-solvents-and-impairment-of-semen-parameters
#1
Oana Ianos, Irène Sari-Minodier, Virginie Villes, Marie-Pascale Lehucher-Michel, Anderson Loundou, Jeanne Perrin
OBJECTIVES: Solvent exposure is among the most common occupational exposures to chemical toxicants; data about the impact of such exposure on semen parameters are contradictory. We conducted the first meta-analysis to evaluate the risk of alteration in semen parameters related to occupational exposure to solvents. METHODS: From the PubMed database, we selected studies analysing the semen of subjects occupationally exposed to solvents, compared to unexposed controls...
August 7, 2018: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/30085374/genome-wide-association-of-male-reproductive-traits-in-aksaray-malakli-dogs
#2
Muhammed Enes İnanç, Koray Tekin, Mustafa Yenal Akkurt, Kemal Tuna Olgac, Burak Yılmaz, Beste Çil, Mehmet Kızılaslan, Umut Taşdemir, Pürhan Barbaros Tuncer, Serhat Büyükleblebici, Ongun Uysal, Bengi Çınar Kul
Male reproductive parameters are often used for the functional examination and evaluation of predicted genetic values for future aspects. However, these traits are relatively reliable until the measurable effects are expressed on desired traits. Therefore, we aim to associate the Single Nucleotide Polymorphism (SNP) genotype of the investigated characteristics and reproductive loci. A total of 46 male dogs are divided into 3 age groups (I ≤ 3 years, n = 19; II 4-6 years; n = 19, and III ≥ 7 years, n = 8)...
August 7, 2018: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/30078738/relationship-of-testicular-biometry-with-semen-variables-in-breeding-soundness-evaluation-of-nellore-bulls
#3
Jurandy Mauro Penitente-Filho, Fabyano Fonseca E Silva, Simone Facioni Guimarães, Bruna Waddington, Eduardo Paulino da Costa, Victor Gomez León, Jeanne Broch Siqueira, Denise Silva Okano, Paula Piccolo Maitan, José Domingos Guimarães
This study aimed to evaluate the correlation between testicular biometry and semen variables, as well as, to relate testicular variables to the probability of selecting Nellore bulls with desirable sperm morphology when conducting breeding soundness evaluations (BSE). A total of 2055 BSEs from 506 bulls comprised the dataset. Biometric variables evaluated were: scrotal circumference, testicular volume, width, length, ratio and eccentricity; and semen variables were sperm motility, major sperm defects, minor sperm defects and normal sperm...
July 29, 2018: Animal Reproduction Science
https://www.readbyqxmd.com/read/30056772/length-of-efficacy-and-effect-of-implant-location-in-adult-tom-cats-treated-with-a-9-4-mg-deslorelin-subcutaneous-implant
#4
Stefano Romagnoli, Anna Baldan, Silvia Ferro, Camilla Righetti, Ludovico Scenna, Gianfranco Gabai, Tamara Badon, Christelle Fontaine, Antonio Mollo, Calogero Stelletta, Chiara Milani
Objectives The objective of this study was to assess duration of efficacy, side effects and return to fertility following use of the 9.4 mg deslorelin implant (Suprelorin 12; Virbac) in cats, and test whether efficacy and duration of action are influenced by implantation site (interscapular vs periumbilical). Methods Sixteen healthy adult tom cats were checked with (1) reproductive examination, (2) gonadotropin-releasing hormone stimulation test and (3) semen collection until achievement of sterility, then with (1) and (2) only at 2, 4, 6 and 12 months, and every 6 months thereafter until treatment effect disappeared...
July 30, 2018: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/30056680/effect-of-graded-levels-of-soapnut-sapindus-mukorossi-shell-powder-on-reproductive-performance-in-broiler-breeders
#5
Sandeep Kumar Chaudhary, Asit Baran Mandal, Rasbihari Bhar, M Gopi, A Kannan, Sunil E Jadhav, Jaydip J Rokade
Objective: This study investigated the effects of soapnut (Sapindus mukorossi) shell powder (SSP) on serum hormone level, egg quality, semen characteristics and reproductive performance of broiler breeders fed with the maize-soybean meal based diet. Methods: Ninety six female and twenty four male CARIBRO-VISHAL broiler breeders, 38-week old, were individually caged and randomly allocated to four treatment groups (24 female breeders/treatment and 6 male breeders/treatment): an un-supplemented control (T1) and three groups with 0...
July 26, 2018: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/30047006/evaluation-of-seminal-plasma-composition-and-spermatozoa-quality-parameters-of-silver-barb-barbonymus-gonionotus-bleeker-1850
#6
Ibrahim Rashid, Md Shakhawate Hossain, Mohammad Abdus Salam, S M Rafiquzzaman
Seminal composition and semen quality are the important determinants in assessing the reproductive performance of different fishes. This study was carried out to evaluate the seminal composition and sperm quality of Barbonymus gonionotus. The seminal plasma contained 17.2 ± 0.34 mmol/l, 20.9 ± 0.48 mmol/l, 0.72 ± 0.04 mmol/l, 3.8 ± 0.2 mmol/l, and 1.49 ± 0.02 g/dl of Na+ , K+ , Ca++ , Mg++ , and total protein, respectively. The physical spermatological parameters, such as sperm volume, sperm motility, motility duration, sperm density, osmolality, and pH values were 1...
July 25, 2018: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/30044596/does-total-testicular-volume-predict-testicular-volume-difference-in-adolescent-males-with-varicocele
#7
Ari P Bernstein, Ethan B Fram, Amanda North, Anthony Casale, Beth A Drzewiecki
INTRODUCTION: We evaluated the relationship between total testicular volume (TTV) and testicular volume differential (TVD) in adolescent males with varicocele. Both low TTV and high TVD have been independently associated with higher incidences of infertility later in life, but a predictive relationship between TTV and TVD directly has yet to be described. MATERIALS AND METHODS: We retrospectively analyzed a database of Tanner 5 boys ages 16-21 who presented with varicocele at a single institution between 2009 and 2017...
June 20, 2018: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/30038947/semen-analysis-in-patients-treated-for-varicocele-in-pediatric-age-are-surgical-outcomes-enough-to-preserve-the-fertility-potential
#8
Nicola Zampieri, Francesco Saverio Camoglio
Preserving the fertility potential of adolescent patients with varicocele is still the main outcome of pediatric and adolescent urologysts; the aim of this study is to assess the fertility potential of patients treated for varicocele with testicular hypotrophy in absence of post-operative complications, with complete ipsilateral testicular catch-up growth and normal hormonal values. METHODS: The Authors collected data from adolescents with varicocele aged between 10 and 16 years treated at their Institution between September 2010 and September 2015...
2018: American Journal of Clinical and Experimental Urology
https://www.readbyqxmd.com/read/30037703/effects-of-dietary-sodium-butyrate-on-reproduction-in-adult-breeder-roosters
#9
Hind Widaa Alhaj, Zhaojian Li, Tipeng Shan, Pengyuan Dai, Peiji Zhu, Yansen Li, Murtada A Alsiddig, Ezaldeen Abdelghani, Chunmei Li
Sodium butyrate (SB) is a novel feed additive in poultry production. This study aimed to evaluate the effects of dietary supplementation of SB on the reproductive performance of the rooster. Three hundred 22-week-old roosters were randomly divided into 2 dietary treatment groups of 6 pen replicates, a basal diet (control) group and a basal diet with SB gruop. The supplementation of SB was carried out through 23 consecutive weeks from 22 to 45 weeks of age. During this period, the live-weight was measured weekly while semen samples were collected every two weeks...
July 11, 2018: Animal Reproduction Science
https://www.readbyqxmd.com/read/30033774/lifestyle-and-demographic-factors-associated-with-human-semen-quality-and-sperm-function
#10
Xiao Shi, Carol Pui Shan Chan, Tarah Waters, Ling Chi, David Yiu Leung Chan, Tin-Chiu Li
In this study, we sought to investigate the effect of lifestyle and demographic factors on classic and functional semen parameters. Three hundred and twenty-eight subjects who underwent semen analysis were recruited. Routine SA, sperm vitality, acrosome reaction (AR) assay and sperm DNA fragmentation index (DFI) were analyzed. Demographic and lifestyle information, including (1) BMI, (2) current smoking and alcohol drinking frequency, (3) sleep habits, (4) daily fluid intake, (5) weekly meat intake, (6) sports frequency, (7) trouser cell phone use, (8) age, and (9) abstinence time, were collected...
July 23, 2018: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/30032170/anogenital-distance-is-associated-with-genital-measures-and-seminal-parameters-but-not-anthropometrics-in-a-large-cohort-of-young-adult-men
#11
C Foresta, U Valente, A Di Nisio, N Cacco, S Magagna, I Cosci, A Presciutti, A Garolla
STUDY QUESTION: Is the anogenital distance (AGD) correlated to anthropometric, genital and sperm parameters in young adult men? SUMMARY ANSWER: We observed that reduced AGD is strongly associated with altered semen parameters and reduced testicular volume. WHAT IS KNOWN ALREADY: Abnormalities in the foetal development of the testis have been suggested as causative of common male reproductive disorders, such as cryptorchidism, hypospadias, reduced semen quality and testicular germ cell tumour, collectively defined as 'testicular dysgenesis syndrome'...
July 19, 2018: Human Reproduction
https://www.readbyqxmd.com/read/30019500/alcohol-intake-and-semen-variables-cross-sectional-analysis-of-a-prospective-cohort-study-of-men-referring-to-an-italian-fertility-clinic
#12
E Ricci, S Noli, S Ferrari, I La Vecchia, S Cipriani, V De Cosmi, E Somigliana, F Parazzini
BACKGROUND: The association between alcohol intake and male reproductive function is still controversial. In the frame of a prospective cohort study, designed to investigate the relation between life style and fertility, we performed a cross-sectional analysis of semen quality. METHODS: Men of subfertile couples, referring to an Italian Infertility Unit and eligible for assisted reproductive techniques (ARTs), were asked about their lifestyle: BMI, smoking, caffeine intake, occupational and leisure physical activity (PA) and alcohol intake in the last year before ART procedure...
July 18, 2018: Andrology
https://www.readbyqxmd.com/read/30019480/paternal-lifestyle-factors-in-relation-to-semen-quality-and-in-vitro-reproductive-outcomes
#13
Edson Borges, Daniela Paes de Almeida Ferreira Braga, Rodrigo R Provenza, Rita de Cassia Savio Figueira, Assumpto Iaconelli, Amanda Souza Setti
This prospective-cohort study aimed at investigating the influence of paternal lifestyle factors on semen parameters and intracytoplasmic sperm injection (ICSI) outcomes. The influence of paternal lifestyle factors on seminal quality and ICSI outcomes was investigated in male patients undergoing conventional semen analysis. Cigarette smoking negatively influenced semen volume (B: -0.417, slope: 1.570, p = 0.047), sperm count/ml (B: -7.363, slope: 52.298, p = 0.014), total sperm count (B: -4.43, slope: 178...
July 17, 2018: Andrologia
https://www.readbyqxmd.com/read/30014899/preconception-seminal-plasma-concentrations-of-endocrine-disrupting-chemicals-in-relation-to-semen-quality-parameters-among-male-partners-planning-for-pregnancy
#14
Melissa M Smarr, Kurunthachalam Kannan, Liping Sun, Masato Honda, Wei Wang, Rajendiran Karthikraj, Zhen Chen, Jennifer Weck, Germaine M Buck Louis
BACKGROUND: Some non-persistent endocrine disruptors (EDCs) are adversely associated with semen quality and few studies have measured those EDCs in seminal plasma. OBJECTIVE: To find an association between EDCs in seminal plasma and semen quality parameters. METHODS: Five chemical classes of non-persistent EDCs were quantified in seminal plasma from 339 male partners who participated in a prospective pregnancy study. Bisphenols, benzophenone UV-filters, antimicrobials and phthalate diesters and their monoester metabolites were measured using high performance liquid chromatography-tandem mass spectrometry and gas chromatography-mass spectrometry...
July 4, 2018: Environmental Research
https://www.readbyqxmd.com/read/29997751/study-of-seminal-infection-among-an-infertile-male-population-in-qom-iran-and-its-effect-on-sperm-quality
#15
Katayon Berjis, Mahdieh Ghiasi, Sareh Sangy
Background and Objectives: There are very few analysis tools to examine seminal fluid specimens, so bacterial infections on male infertility has always been the subject of discussion. These infectious processes lead to deterioration of spermatogenesis, impairment of sperm function, and/or obstruction of the seminal tract. In this study, we aimed at determining the role of bacterial infection on semen parameters including motility, count and normal morphology in infertile male patients...
April 2018: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/29989218/changes-in-testicular-size-echotexture-and-arterial-blood-flow-associated-with-the-attainment-of-puberty-in-dorper-rams-raised-in-a-subtropical-climate
#16
Efigénia S C Camela, Ricardo P Nociti, Victor J C Santos, Beatrice I Macente, Maciej Murawski, Wilter R R Vicente, Pawel M Bartlewski, Maria Emilia F Oliveira
There is a paucity of information on the relationships of testicular morphology, echotextural attributes, and blood flow dynamics with pubertal development of rams raised in a subtropical climate. Forty-five Dorper rams (24 rams aged 8-11 months and 21 rams aged 12-24 months) were examined using a portable ultrasound scanner connected to a 7.5-MHz transducer. Computer-assisted analyses of testicular ultrasonograms utilized commercially available Image ProPlus® analytical software. Spectral Doppler scans of testicular arteries were performed immediately after scrotal (B-mode) ultrasonography to determine peak systolic velocity (PSV), end-diastolic velocity (EDV), resistive index (RI = [PSV-EDV]/PSV), and pulsatility index (PI = [SPV-EDV]/mean velocity) of the blood vessels...
July 10, 2018: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/29984477/a-kinase-anchor-protein-4-precursor-pro-akap4-in-human-spermatozoa
#17
F Jumeau, J Sigala, F Dossou-Gbete, K Frimat, A L Barbotin, L Buée, H Béhal, N Sergeant, V Mitchell
BACKGROUND: A-kinase anchor protein 4 (AKAP4) and its precursor pro-AKAP4 are two major proteins in spermatozoa of rodents and mammals. Although researchers have characterized the AKAP4 expression in various species, the protein's expression in humans has not been described in detail. OBJECTIVES: The objective of this study was to characterize human pro-AKAP4 more precisely (notably the definition of its localization and expression levels in human spermatozoa and testes)...
July 8, 2018: Andrology
https://www.readbyqxmd.com/read/29980266/impact-of-age-clinical-conditions-and-lifestyle-on-routine-semen-parameters-and-sperm-kinematics
#18
Gustavo Luis Verón, Andrea Daniela Tissera, Ricardo Bello, Fernando Beltramone, Gustavo Estofan, Rosa Isabel Molina, Mónica Hebe Vazquez-Levin
OBJECTIVE: To assess the impact of aging on routine semen and computer-assisted sperm analysis (CASA) motility parameters according to the current World Health Organization guidelines; and to evaluate the effect of obesity and lifestyle (alcohol consumption, cigarette smoking) in older men's semen. DESIGN: Blind cross-sectional study. SETTING: Research laboratory and andrology and reproduction laboratory. PATIENT(S): A population of 11,706 men...
July 1, 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29973189/testicular-histopathology-semen-analysis-and-fsh-predictive-value-of-sperm-retrieval-supportive-counseling-in-case-of-reoperation-after-testicular-sperm-extraction-tese
#19
Lucio Gnessi, Filomena Scarselli, Maria Giulia Minasi, Stefania Mariani, Carla Lubrano, Sabrina Basciani, Pier Francesco Greco, Mikiko Watanabe, Giorgio Franco, Alessio Farcomeni, Ermanno Greco
BACKGROUND: To provide indicators for the likelihood of sperm retrieval in patients undergoing testicular sperm extraction is a major issue in the management of male infertility by TESE. The aim of our study was to determine the impact of different parameters, including testicular histopathology, on sperm retrieval in case of reoperation in patients undergoing testicular sperm extraction. METHODS: We retrospectively analyzed 486 patients who underwent sperm extraction for intracytoplasmic sperm injection and testicular biopsy...
July 4, 2018: BMC Urology
https://www.readbyqxmd.com/read/29970423/ferroelectric-domain-wall-dynamics-characterized-with-x-ray-photon-correlation-spectroscopy
#20
Semën Gorfman, Alexei A Bokov, Arman Davtyan, Mario Reiser, Yujuan Xie, Zuo-Guang Ye, Alexey V Zozulya, Michael Sprung, Ullrich Pietsch, Christian Gutt
Technologically important properties of ferroic materials are determined by their intricate response to external stimuli. This response is driven by distortions of the crystal structure and/or by domain wall motion. Experimental separation of these two mechanisms is a challenging problem which has not been solved so far. Here, we apply X-ray photon correlation spectroscopy (XPCS) to extract the contribution of domain wall dynamics to the overall response. Furthermore, we show how to distinguish the dynamics related to the passing of domain walls through the periodic (Peierls) potential of the crystal lattice and through the random potential caused by lattice defects (pinning centers)...
July 17, 2018: Proceedings of the National Academy of Sciences of the United States of America
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