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https://www.readbyqxmd.com/read/29786533/-bacteriospermia-effects-on-semen-parameters
#1
H Hannachi, H Elloumi, M Hamdoun, K Kacem, A Zhioua, O Bahri
OBJECTIVES: Bacteriospermia may result in male hypofertlity. Indeed, 60% of patients treated by Assisted Reproductive Techniques had a local infection or inflammation of genital tract. However, direct effects of bacteriospermia on semen parameters remain controversial. The aim of our work was to explore the effect of bacteriospermia on sperm parameters among patients consulting for hypofertility. METHODS: A retrospective comparative study of two groups: a group of 70 patients with bacteriospermia (group 1) and a control group of 70 patients without bacteriospermia (group 2)...
May 18, 2018: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/29785530/azoospermia-and-embryo-morphokinetics-testicular-sperm-derived-embryos-exhibit-delays-in-early-cell-cycle-events-and-increased-arrest-prior-to-compaction
#2
Nina Desai, Pavinder Gill, Nicholas N Tadros, Jeffrey M Goldberg, Edmund Sabanegh, Tommaso Falcone
PURPOSE: Sperm play an essential role in embryonic genome activation and embryonic progression to blastocyst. In the present work, we focus on development of embryos created as a result of ICSI with testicular or epididymal sperm from azoospermic males and compare this to outcomes from normospermic males. The objective of this study was to determine if sperm origin influences clinical outcomes, the kinetics of embryo development, or the incidence of cleavage anomalies and multinucleation...
May 21, 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29784192/differential-gene-expression-in-prostate-tissue-according-to-ejaculation-frequency
#3
Jennifer A Sinnott, Katherine Brumberg, Kathryn M Wilson, Ericka M Ebot, Edward L Giovannucci, Lorelei A Mucci, Jennifer R Rider
In a prospective study of 31 925 men with 18 yr of follow-up, higher ejaculation frequency (EF) throughout adulthood was associated with lower rates of prostate cancer. To further explore this association, we evaluated whole transcriptome gene expression in the prostate tissue from study participants who developed prostate cancer between 1992 and 2004 (n=157 tumor tissue, n=85 adjacent normal). We tested for trends in gene expression according to the level of EF as self-reported in 1992 for ages 20-29 yr, 40-49 yr, and the year prior to the questionnaire, 1991...
May 18, 2018: European Urology
https://www.readbyqxmd.com/read/29782062/a-comparison-of-quality-parameters-of-fresh-feline-ejaculates-collected-by-three-different-collection-techniques
#4
Klara Jelinkova, Roman Vitasek, Robert Novotny, Alena Bartoskova
The aim of our study was to compare the quality parameters of fresh feline ejaculates collected by three different techniques-urethral catheterization after medetomidine administration (CT), electroejaculation (EE) and epididymal slicing after orchiectomy (EP). A total of 34 adult male cats (Felis catus) were included in the study. In all male cats, the sperm collection was performed under general anaesthesia by three collection methods in the following order: urethral catheterization, electroejaculation and epididymal slicing...
May 21, 2018: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/29782044/effect-of-various-levels-of-dissolved-oxygen-on-reactive-oxygen-species-and-cryocapacitation-like-changes-in-bull-sperm
#5
Beigh Y Amin, Jai K Prasad, Subrata K Ghosh, Shabir A Lone, Abhishek Kumar, Abdul R Mustapha, Omer Din, Ajay Kumar
The present investigation was carried out to study the effect of various levels of dissolved oxygen (DO) on reactive oxygen species (ROS) and cryocapacitation-like changes in bull sperm. Egg yolk-Tris-glycerol (EYTG) extender was split into four subextenders; viz., Extender I (control; no flushing with liquid nitrogen (LN2 )), Extender II, Extender III and Extender IV were flushed with LN2 for 40, 16 and 8 min, respectively. The DO levels were standardized to 11.7, 2, 4 and 8 ppm, respectively, in control (Extender I), Extender II, Extender III and Extender IV...
May 21, 2018: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/29779500/review-understanding-the-causes-of-variation-in-reproductive-wastage-among-bulls
#6
S Fair, P Lonergan
The ability to predict the fertility of bulls before semen is released into the field has been a long-term objective of the animal breeding industry. However, the recent shift in the dairy industry towards the intensive use of young genomically selected bulls has increased its urgency. Such bulls, which are often in the highest demand, are frequently only used intensively for one season and consequently there is limited time to track their field fertility. A more pressing issue is that they produce fewer sperm per ejaculate than mature bulls and therefore there is a need to reduce the sperm number per straw to the minimum required without a concomitant reduction in fertility...
May 21, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29777425/the-use-of-hiv-post-exposure-prophylaxis-in-forensic-medicine-following-incidents-of-sexual-violence-in-hamburg-germany-a-retrospective-study
#7
Julia Ebert, Jan Peter Sperhake, Olaf Degen, Ann Sophie Schröder
In Hamburg, Germany, the initiation of HIV post-exposure prophylaxis (HIV PEP) in cases of sexual violence is often carried out by forensic medical specialists (FMS) using the city's unique Hamburg Model. FMS-provided three-day HIV PEP starter packs include a combination of raltegravir and emtricitabine/tenofovir. This study aimed to investigate the practice of offering HIV PEP, reasons for discontinuing treatment, patient compliance, and whether or not potential perpetrators were tested for HIV. We conducted a retrospective study of forensic clinical examinations carried out by the Hamburg Department of Legal Medicine following incidents of sexual violence from 2009 to 2016...
May 18, 2018: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/29777145/testicular-sperm-is-superior-to-ejaculated-sperm-for-icsi-in-cryptozoospermia-an-update-systematic-review-and-meta-analysis
#8
Yi-No Kang, Ya-Wen Hsiao, Chien-Yu Chen, Chien-Chih Wu
Intracytoplasmic sperm injection (ICSI) is well established and provides patients with severely impaired sperm quality with an opportunity to father a child. However, previous studies do not clearly indicate whether male with cryptozoospermia should use testicular sperm or ejaculated sperm for ICSI. The newest systematic review of this topic also gave a controversial conclusion that was based on incorrect pooling result. Moreover, two clinical studies published after the systematic review. In the present update systematic review and meta-analysis, a comprehensive citation search for relevant studies was performed using the Cochrane library databases, Embase, Ovid MEDLINE, PubMed, ScienceDirect, Scopus, and Web of Science up to September 2017...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29773470/is-boar-sperm-freezability-more-intrinsically-linked-to-spermatozoa-than-to-the-surrounding-seminal-plasma
#9
Junwei Li, Jordi Roca, Cristina Pérez-Patiño, Isabel Barranco, Emilio A Martinez, Heriberto Rodriguez-Martinez, Inmaculada Parrilla
This study aimed to elucidate the effect of seminal plasma (SP) from post-SRF on boar sperm freezability and, in addition, to determine the relevance of sperm itself to sustain cryopreservation, regardless of the SP surrounding them. Twelve ejaculates from three boars were manually collected in fractions/portions, P1: the first 10 mL of the SRF, P2: the rest of the SRF and the post-SRF. Immediately, samples were centrifuged to separate spermatozoa from the surrounding SP. Spermatozoa from P1 and P2 were then incubated with its own SP or that from post-SRF, diluted in BTS (1:1, v/v) at 17 °C overnight before being frozen in 0...
May 14, 2018: Animal Reproduction Science
https://www.readbyqxmd.com/read/29773109/recombinant-%C3%AB-defensin-126-promotes-bull-sperm-binding-to-bovine-oviductal-epithelia
#10
A Lyons, F Narciandi, E Donnellan, J Romero-Aguirregomezcorta, C O' Farrelly, P Lonergan, K G Meade, S Fair
Primate β-defensin 126 regulates the ability of spermatozoa to bind to oviductal epithelial cells invitro. Bovine β-defensin 126 (BBD126) exhibits preferential expression in the cauda epididymis of the bull, but there have been few studies on its functional role in cattle. The aim of the present study was to examine the role of BBD126 in bull sperm binding to bovine oviductal epithelial cell (BOEC) explants. BBD126 has been shown to be highly resistant to the standard methods of dissociation used in other species and, as a result, corpus epididymal spermatozoa, which have not been exposed to the protein, were used to study the functional role of BBD126...
May 18, 2018: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/29767722/influence-of-bull-age-ejaculate-number-and-season-of-collection-on-semen-production-and-sperm-motility-parameters-in-holstein-friesian-bulls-in-a-commercial-artificial-insemination-centre
#11
Edel M Murphy, Alan K Kelly, Ciara O'Meara, Bernard Eivers, Patrick Lonergan, Sean Fair
In the current era of genomic selection, there is an increased demand to collect semen from genomically selected sires at a young age. The objective of this study was to assess the effect of bull age, ejaculate number, and season of collection on semen production (ejaculate volume, sperm concentration, and total sperm number; TSN) and sperm motility (prefreeze and post-thaw total and gross motility) parameters in Holstein Friesian bulls in a commercial artificial insemination (AI) center. The study involved the interrogation of a large dataset collected over a 4-yr period, (n = 8,983 ejaculates; n = 176 Holstein Friesian bulls aged between 9 mo and 8 yr)...
May 14, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29765499/effect-of-heat-stress-on-sperm-dna-protamine-assessment-in-ram-spermatozoa-and-testicle
#12
Thais Rose Dos Santos Hamilton, Adriano Felipe Perez Siqueira, Letícia Signori de Castro, Camilla Mota Mendes, Juliana de Carvalho Delgado, Patrícia Monken de Assis, Leonardo Pereira Mesquita, Paulo César Maiorka, Marcílio Nichi, Marcelo Demarchi Goissis, José Antonio Visintin, Mayra Elena Ortiz D Ávila Assumpção
Sperm DNA fragmentation is considered one of the main causes of male infertility. The most accepted causes of sperm DNA damage are deleterious actions of reactive oxygen species (ROS), defects in protamination, and apoptosis. Ram sperm are highly prone to those damages due to the high susceptibility to ROS and to oxidative stress caused by heat stress. We aimed to evaluate the effects of heat stress on the chromatin of ejaculated and epididymal sperm and the activation of apoptotic pathways in different cell types in ram testis...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29765255/distribution-of-pomalidomide-into-semen-of-healthy-male-subjects-after-multiple-doses
#13
Yan Li, Xiaomin Wang, Liangang Liu, Josephine Reyes, Maria Palmisano, Simon Zhou
Objective: To assess whether pomalidomide can distribute into human semen and its duration in human semen. Method: A phase 1, randomized, double-blind, placebo-controlled study (CC-4047-CP-006) was conducted to evaluate the safety, tolerability, and pharmacokinetics of pomalidomide (CC-4047) following multiple daily doses in healthy male subjects. Semen samples were collected on Day -1 and 4 hours after dosing on Day 4 to quantify the pomalidomide concentrations in ejaculate after multiple oral doses of pomalidomide...
2018: Clinical Pharmacology: Advances and Applications
https://www.readbyqxmd.com/read/29764712/the-tail-in-tropical-hair-ewes-ovis-aries-that-are-in-estrus-is-used-as-a-proceptive-signal-and-favors-ram-copulation
#14
Ángel Fierros-García, Rodolfo Ungerfeld, Virginio Aguirre, Agustín Orihuela
Two experiments were performed to determine if the tail has a role: 1) in proceptive behavior, and 2) in facilitating copulation in hair sheep. The movements and position of the tail of estrous and non-estrous ewes in response to male courtship were compared in the first study. In the second study, the courtship of rams and mating behavior directed towards tailed or tail-docked, in estrus or diestrus ewes, were compared. Both experiments were conducted with restrained ewes during 3 min assessment periods...
May 12, 2018: Animal Reproduction Science
https://www.readbyqxmd.com/read/29764711/does-lipid-peroxidation-and-oxidative-dna-damage-differ-in-cryopreserved-semen-samples-from-young-adult-and-aged-nellore-bulls
#15
Juliane Teramachi Trevizan, Janaina Torres Carreira, Isadora Resende Carvalho, Bruna Helena Kipper, Walter Bertequine Nagata, Silvia Helena Venturoli Perri, Maria Emilia Franco Oliveira, Julia Cestari Pierucci, Marion Burkhardt de Koivisto
The aims of this study were to evaluate cryopreserved semen of Nellore bulls of different ages and verify whether sperm quality declines with advancing age and whether lipid peroxidation and DNA damage are involved in this process. For this purpose, 40 Nellore bulls were divided into three age groups: Young, aged 1.8-2 years (n = 9); Adult, aged 3.5-7.0 years (n = 19); and Seniors, aged 8.0-14.3 years (n = 12). Three ejaculates were collected from each bull, cryopreserved and evaluated for various parameters including membrane integrity, mitochondrial potential (FITC-PSA and JC1), lipid peroxidation (C-11BODIPY 581 / 591) and oxidative DNA damage (8OHdG) using flow cytometry...
April 17, 2018: Animal Reproduction Science
https://www.readbyqxmd.com/read/29760893/high-levels-of-polyandry-but-limited-evidence-for-multiple-paternity-in-wild-populations-of-the-western-rock-lobster-panulirus-cygnus
#16
Jacqueline Loo, Winn Jason Kennington, Simon de Lestang, Jason How, Jonathan P Evans
Polyandry, where multiple mating by females results in the temporal and spatial overlap of ejaculates from two or more males, is taxonomically widespread and occurs in varying frequencies within and among species. In decapods (crabs, lobsters, crayfish, and prawns), rates of polyandry are likely to be variable, but the extent to which patterns of multiple paternity reflect multiple mating, and thus are shaped by postmating processes that bias fertilization toward one or a subset of mated males, is unclear. Here, we use microsatellite markers to examine the frequency of multiple mating (the presence of spermatophores from two or more males) and patterns of paternity in wild populations of western rock lobster ( Panulirus cygnus )...
May 2018: Ecology and Evolution
https://www.readbyqxmd.com/read/29759910/genetic-parameters-predictions-and-rankings-for-semen-production-traits-in-a-thailand-multi-breed-dairy-population-using-genomic-polygenic-and-polygenic-models
#17
Mattaneeya Sarakul, Mauricio A Elzo, Skorn Koonawootrittriron, Thanathip Suwanasopee, Danai Jattawa
The objectives were to compare estimates of variance components, genetic parameters, prediction accuracies, and rankings of bulls for semen volume (VOL), number of sperm (NS), and motility (MOT) using genomic-polygenic (GPRM) and polygenic repeatability models (PRM). The dataset comprised 13,535 VOL, 12,773 NS, and 12,660 MOT from 131 bulls collected from 2001 to 2017 in the Semen Production and Dairy Genetic Evaluation Center of the Dairy Farming Promotion Organization of Thailand. Genotypic data encompassed 76,519 actual and imputed SNP from 72 animals...
May 12, 2018: Animal Reproduction Science
https://www.readbyqxmd.com/read/29755571/plasma-oxytocin-level-and-sexual-dysfunction-in-depressed-women-treated-by-either-fluoxetine-or-citalopram-a-pilot-clinical-trial
#18
Mohammad Abbasinazari, Mona Heidari-Kord, Azadeh Mazaheri-Meybodi, Azadeh Eshraghi, Nima Bayati
Sexual dysfunction is a common cause of selective serotonin reuptake inhibitor (SSRI) withdrawal. Various studies indicate that decreased oxytocin is involved as a mechanism of delayed ejaculation induced by SSRIs. The aim of the present pilot study was to evaluate and compare sexual dysfunction and oxytocin levels in women being treated with either fluoxetine or citalopram. Thirty-nine women with the diagnosis of major depressive disorder were enrolled in the study. A baseline blood sample was collected and each participant was given either fluoxetine 20 mg/d or citalopram 20 mg/d...
2018: Iranian Journal of Pharmaceutical Research: IJPR
https://www.readbyqxmd.com/read/29753802/prevalence-and-predictors-of-sexual-problems-among-midlife-canadian-adults-results-from-a-national-survey
#19
Christopher Quinn-Nilas, Robin R Milhausen, Alexander McKay, Stephen Holzapfel
BACKGROUND: Sexual problems are common among midlife men and women, and studies have identified a range of demographic, health, and relational correlates. Research on prevalence of these sexual problems within Canada is sparse and is warranted given the unique context related to provision of health care services in contrast to other countries. AIM: We investigated sexual problems (women's low desire, orgasm difficulties, and vaginal pain, as well as men's low desire, erection difficulties, and ejaculation difficulties) and their correlates among a large sample of Canadian men and women aged 40-59 years...
May 9, 2018: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/29751700/-research-progress-of-tibetan-medicine-zha-xun
#20
Ming-Ming Zhao, Rui Gu, Jiu-Yu Fan, Yong Zeng, Yun Cao, Wen-Qian Wang, Shi-Hong Zhong, Peng Mi
Zha-xun is widely used in Tibetan medicine and is also an international traditional medicine. This article would summarize the use status and research progress of Zha-xun by various ethnic groups all over the world, and the results show that it has various synonyms but most of them imply its most characteristic feature-outflow from the rock; Zha-xun resources are distributed in various places of the world, and its bearing spots are closely related to the geological structure; there are sharp arguments on the origins of Zha-xun, mainly including the minerals origin, biological fossils origin, biological origin, etc...
April 2018: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
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