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https://www.readbyqxmd.com/read/29050419/successful-chilling-of-red-legged-partridge-alectoris-rufa-sperm-for-use-in-artificial-insemination
#1
J Santiago-Moreno, C Castaño, A Toledano-Díaz, M C Esteso, A López-Sebastián, S Villaverde-Morcillo, S G Dávila, M G Gil, E Blesbois
The fertilizing capacity of pure, fresh avian semen may disappear in just half an hour, hindering its successful use in artificial insemination (AI) projects. Longer storage requires the use of infra-physiological temperatures and of semen diluents that help preserve the spermatozoa but that do not interfere with their fertilizing capacity. This study examines the effect on sperm quality of storing red-legged partridge sperm for 3 h at 5°C with 2 different semen extenders: 1) a medium referred to as L&R-84, composed of sodium glutamate, glucose, magnesium acetate, potassium acetate, and polyvinylpyrrolidone, and 2) Lake 7...
September 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/29049923/attenuation-of-heat-stress-induced-spermatogenesis-complications-by-betaine-in-mice
#2
Somayeh Shadmehr, Seyed Reza Fatemi Tabatabaei, Shima Hosseinifar, Mohammad Reza Tabandeh, Alireza Amiri
High temperatures can induce oxidative stress, impairment of spermatogenesis, and reduction of sperm quality and quantity concomitant with transient periods of partial or complete infertility in male mammals. Promising beneficial effects of betaine supplementation on the epididymal spermatozoa have been reported in experimental studies; however, its effects on testicular heat stress (HS)-induced impairment have yet to be determined. In the present study, betaine (Bet) was orally administrated (250 mg/kg day) during a 14-day period, before (Bet + HS group) or after (HS + Bet group) induction of testicular HS in 7-9 week-old male mice...
October 7, 2017: Theriogenology
https://www.readbyqxmd.com/read/29044638/impact-of-melatonin-supplementation-in-the-rat-spermatogenesis-subjected-to-forced-swimming-exercise
#3
A Moayeri, T Mokhtari, A Hedayatpour, H-A Abbaszadeh, S Mohammadpour, H Ramezanikhah, S Shokri
Oxygen consumption increases many times during exercise, which can increase reactive oxygen species. It negatively affects fertility in male athletes. Melatonin is exerting a regulatory role at different levels of the hypothalamic-pituitary-gonadal axis. However, there is no evidence that the protective effects of melatonin persist after long duration exercise on the spermatogenesis. Therefore, this study was conducted to examine the impacts of melatonin on the testis following the administration of swimming exercise...
October 18, 2017: Andrologia
https://www.readbyqxmd.com/read/29044420/characterization-of-a-novel-role-for-the-dynamin-mechanoenzymes-in-the-regulation-of-human-sperm-acrosomal-exocytosis
#4
Wei Zhou, Amanda L Anderson, Adrian P Turner, Geoffry N De Iuliis, Adam McCluskey, Eileen A McLaughlin, Brett Nixon
STUDY QUESTION: Does dynamin regulate human sperm acrosomal exocytosis? SUMMARY ANSWER: Our studies of dynamin localization and function have implicated this family of mechanoenzymes in the regulation of progesterone-induced acrosomal exocytosis in human spermatozoa. WHAT IS KNOWN ALREADY: Completion of an acrosome reaction is a prerequisite for successful fertilization in all studied mammalian species. It follows that failure to complete this unique exocytotic event represents a common aetiology in the defective spermatozoa of male infertility patients that have failed IVF in a clinical setting...
October 1, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/29043705/quality-of-life-and-its-influencing-factors-of-couples-referred-to-an-infertility-center-in-shiraz-iran
#5
Bahia Namavar Jahromi, Mahsa Mansouri, Sedighe Forouhari, Tahere Poordast, Alireza Salehi
Background: Infertility adversely affects quality of life (QoL). The present study aims to evaluate QoL and its associated factors among infertile couples. MATERIALS AND METHODS: In this cross-sectional study, the Fertility QoL (FertiQoL) instrument was used to measure QoL among 501 volunteer couples who attended the Infertility Clinic at the Mother and Child Hospital, Shiraz, Iran. We used an additional questionnaire to assess participants' demographic and clinical characteristics...
January 2018: International Journal of Fertility & Sterility
https://www.readbyqxmd.com/read/29043700/body-mass-index-effects-kruger-s-criteria-in-infertile-men
#6
Yaprak Engin-Ustun, Nafiye Yılmaz, Nilufer Akgun, Ayla Aktulay, Ahmet Deniz Tuzluoğlu, Batuhan Bakırarar
Background: The aim of this study is to evaluate the relationship between sperm parameters and body mass index (BMI) in the male spouses with infertility complaints, who had reffered to our clinic. MATERIALS AND METHODS: The male spouses from 159 couples reffering to our clinic because of infertility, during a six-month period, were included in the study. In this prospective case control study, the included men were categorized as non-obese (BMIP<25 kg/m(2)), overweight (BMI 25-29 kg/m(2)) and obese (BMI ≥30 kg/m(2)) according to their BMIs...
January 2018: International Journal of Fertility & Sterility
https://www.readbyqxmd.com/read/29043697/revisiting-the-relationship-between-the-ejaculatory-abstinence-period-and-semen-characteristics
#7
Bashir M Ayad, Gerhard Van der Horst, Stefan S Du Plessis
Variation in the ejaculatory abstinence period suggested by different guidance bodies have resulted in a growing concern among researchers and clinicians over what the precise period of ejaculatory abstinence ought to be for an optimal semen sample. Several studies have thus been undertaken to examine the association between the length of sexual abstinence and semen characteristics. Not all studies, however, have arrived at the same conclusions. This study aims to review all existing literature published during the past few decades pertaining to the influence of ejaculatory abstinence on semen quality...
January 2018: International Journal of Fertility & Sterility
https://www.readbyqxmd.com/read/29043037/sperm-whale-dive-behavior-characteristics-derived-from-intermediate-duration-archival-tag-data
#8
Ladd Irvine, Daniel M Palacios, Jorge Urbán, Bruce Mate
Here, we describe the diving behavior of sperm whales (Physeter macrocephalus) using the Advanced Dive Behavior (ADB) tag, which records depth data at 1-Hz resolution and GPS-quality locations for over 1 month, before releasing from the whale for recovery. A total of 27 ADB tags were deployed on sperm whales in the central Gulf of California, Mexico, during spring 2007 and 2008, of which 10 were recovered for data download. Tracking durations of all tags ranged from 0 to 34.5 days (median = 2.3 days), and 0...
October 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/29040510/genomic-fragmentation-and-extrachromosomal-telomeric-repeats-impact-assessment-of-telomere-length-in-human-spermatozoa-quantitative-experiments-and-systematic-review
#9
P Kurjanowicz, S Moskovtsev, C Librach
STUDY QUESTION: Can differences in DNA isolation alter assessment of sperm telomere length (spTL) and do they account for conflicting results in the literature on spTL and male fertility? SUMMARY ANSWER: DNA isolation methods preferentially include or exclude short, extrachromosomal (EC) telomere-specific sequences that alter spTL measurements, and are responsible for a proportion of the disparity observed between investigations. WHAT IS KNOWN ALREADY: The relationship between spTL and male fertility has become an active area of research...
September 29, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29037981/effect-of-incubation-temperature-after-devitrification-on-quality-parameters-in-human-sperm-cells
#10
Pamela Uribe, Christian Rojas, Juan Meriño, Fabiola Zambrano, Juana V Villegas, Favián Treulen, Rodrigo Boguen, Vladimir Isachenko, Evgenia Isachenko, Raúl Sánchez
Sperm cryopreservation is common in assisted reproduction laboratories, providing a therapeutic option for several clinical conditions. This process has been optimized; however, the effect of post-thaw incubation temperature has been poorly studied. This work analyzed the effect of incubation temperature after devitrification on human sperm quality. Spermatozoa from normozoospermic donors were cryopreserved by vitrification. After devitrification, the spermatozoa were separated into two aliquots: (i) incubated at room temperature (RT, 22-25 °C) and (ii) incubated at 37 °C...
October 13, 2017: Cryobiology
https://www.readbyqxmd.com/read/29031946/spermatozoa-dna-methylation-patterns-differ-due-to-peripubertal-age-in-bulls
#11
Simon Lambert, Patrick Blondin, Christian Vigneault, Rémi Labrecque, Isabelle Dufort, Marc-André Sirard
In the dairy industry, using semen as soon as the bull is mature enough to produce it is advantageous for breeding purposes. Mammalian spermatogenesis is a hormone-dependent developmental program in which a complex cascade of events must take place to ensure that germ cells reach the proper stage of development at the proper time. Conventional indicators of semen quality such as sperm cell motility and viability usually improve as bulls mature, meeting quality criteria satisfactorily at around 16 months. Using semen before that age may affect embryo viability, but other changes occurring during the peripubertal period should be considered...
October 6, 2017: Theriogenology
https://www.readbyqxmd.com/read/29031884/human-sperm-cryopreservation-in-cancer-patients-links-with-deprivation-and-mortality
#12
Chey G Dearing, Channa N Jayasena, Kevin Lindsay
Evidence is mounting for a relationship between human semen quality and environmental/lifestyle/socioeconomic factors including long term health outcomes such as mortality. The relationship between pre-freeze and post-thaw semen quality in cancer patients and these factors are unknown. Frozen semen from 217 cancer patients was thawed and analysed using a validated CASA method. Post-thaw quality was matched and compared with WHO semen analysis performed prior to storage. The English Indices of Deprivation 2010 were matched with patients and then examined for relationships with ejaculate pre-freeze and post-thaw semen quality...
October 11, 2017: Cryobiology
https://www.readbyqxmd.com/read/29026718/the-association-of-follicular-fluid-volume-with-human-oolemma-stretchability-during-intracytoplasmic-sperm-injection
#13
Taketo Inoue, Yoshiki Yamashita, Yoshiko Tsujimoto, Shuji Yamamoto, Sayumi Taguchi, Kayoko Hirao, Mikiko Uemura, Kayoe Ikawa, Kazunori Miyazaki
OBJECTIVE: Oocyte degeneration often occurs after intracytoplasmic sperm injection (ICSI), and the risk factor is low-quality oocytes. The follicular fluid (FF) provides a crucial microenvironment for oocyte development. We investigated the relationships between the FF volume aspirated from individual follicles and oocyte retrieval, oocyte maturity, oolemma stretchability, fertilization, and development. METHODS: This retrospective study included data obtained from 229 ICSI cycles...
September 2017: Clinical and Experimental Reproductive Medicine
https://www.readbyqxmd.com/read/29025071/the-expression-characteristics-of-fam71d-and-its-association-with-sperm-motility
#14
Qian Ma, Yuchi Li, Manling Luo, Huan Guo, Shouren Lin, Jianbo Chen, Ye Du, Zhimao Jiang, Yaoting Gui
STUDY QUESTION: What are the features of FAM71D (Family with sequence similarity 71, member D) expression and is there an association between FAM71D expression and sperm motility? SUMMARY ANSWER: FAM71D, a novel protein exclusively expressed in the testis, is located in sperm flagella and is functionally involved in sperm motility. WHAT IS KNOWN ALREADY: Some testis-specific proteins have been reported as potential diagnostic biomarkers to evaluate the spermatogenesis process and sperm quality...
September 12, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29024969/preconception-urinary-phthalate-concentrations-and-sperm-dna-methylation-profiles-among-men-undergoing-ivf-treatment-a-cross-sectional-study
#15
Haotian Wu, Molly S Estill, Alexander Shershebnev, Alexander Suvorov, Stephen A Krawetz, Brian W Whitcomb, Holly Dinnie, Tayyab Rahil, Cynthia K Sites, J Richard Pilsner
STUDY QUESTION: Are preconception phthalate and phthalate replacements associated with sperm differentially methylated regions (DMRs) among men undergoing IVF? SUMMARY ANSWER: Ten phthalate metabolites were associated with 131 sperm DMRs that were enriched in genes related to growth and development, cell movement and cytoskeleton structure. WHAT IS KNOWN ALREADY: Several phthalate compounds and their metabolites are known endocrine disrupting compounds and are pervasive environmental contaminants...
September 12, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29024507/dietary-patterns-and-semen-quality-a-systematic-review-and-meta-analysis-of-observational-studies
#16
REVIEW
A Arab, N Rafie, M Mansourian, M Miraghajani, H Hajianfar
A number of studies have examined the association between dietary patterns and semen quality, but the findings have been inconclusive. Herein, we conducted a systematic review and meta-analysis of observational studies to assess the association between dietary patterns and semen quality. PubMed, Cochrane library, Science direct, Scopus, Google Scholar, and ISI web of science databases were searched up to August 2016 for observational studies assessing the association between common dietary patterns and sperm quality markers...
October 12, 2017: Andrology
https://www.readbyqxmd.com/read/29022649/the-quality-of-semen-among-a-sample-of-young-healthy-men-from-lower-silesia-androls
#17
Marek Mędraś, Felicja Lwow, Paweł Jóźków, Leszek Szmigiero, Aleksandra Zagrodna, Ewa Zagocka, Małgorzata Słowińska-Lisowska
INTRODUCTION: Contrary to other parts of the continent, little information is available regarding semen quality among subjects from central and eastern Europe. MATERIAL AND METHODS: We evaluated semen profiles among a sample of men from an industrialised region of Poland. We directly invited 5000 healthy inhabitants of the region (aged 18-35 years; with unchecked fecundity) to participate in the study. Among the 500 who were eligible and willing to participate, we acquired detailed information and semen and blood samples from 177 subjects...
October 12, 2017: Endokrynologia Polska
https://www.readbyqxmd.com/read/29021318/salinity-induced-phenotypic-plasticity-in-threespine-stickleback-sperm-activation
#18
Annette Taugbøl, Anna B Mazzarella, Emily R A Cramer, Terje Laskemoen
Phenotypic expression may be and often is influenced by an organism's developmental environment, referred to as phenotypic plasticity. The sperm cells of teleosts have been found to be inactive in the seminal plasma and are activated by osmotic shock for most fish species, through release in either hypertonic (for marine fish) or hypotonic (for freshwater fish) water. If this is the case, the regulatory system of sperm mobility should be reversed in salt- and freshwater fish. We tested this hypothesis by first activating sperm of salt- and freshwater populations of threespine stickleback in salt- and freshwater...
October 2017: Biology Letters
https://www.readbyqxmd.com/read/29020465/donor-sperm-insemination-after-failed-intra-couple-intracytoplasmic-sperm-injection
#19
Sylviane Hennebicq, Oxana Blagosklonov, Florence Eustache, Aline Papaxanthos, Veronique Drouineaud, Catherine Guillemain, Sophie Mirallie, Beatrice Delepine, Nathalie Rives, Isabelle Berthaut, Cynthia Frapsauce, Jean-François Guérin, Mehdi Benchaib
The purpose of the present multicenter study was to investigate whether an artificial insemination with donor sperm (AID) procedure after intra-couple intracytoplasmic sperm injection (ICSI) failure offers a significant chance of pregnancy and to identify prognostic factors for pregnancy after an AID procedure. An eleven-year retrospective multicenter study was conducted among 13 Centre d'Etude et de Conservation des Oeufs et du Sperme (CECOS) centers. A total of 319 couples having undergone an AID procedure after intra-conjugal ICSI failure were included in this study; a total of 1,159 AID and 1,011 intra-conjugal ICSI cycles were performed...
October 11, 2017: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/29016685/lactobacillus-rhamnosus-pb01-dsm-14870-supplementation-affects-markers-of-sperm-kinematic-parameters-in-a-diet-induced-obesity-mice-model
#20
Fereshteh Dardmeh, Hiva Alipour, Parisa Gazerani, Gerhard van der Horst, Erik Brandsborg, Hans Ingolf Nielsen
Probiotics have been proposed as alternatives to pharmacological products in several medical conditions including the modulation of obesity, which is frequently associated with poor semen quality. However, effects of probiotics on male fertility have been less investigated. This study assessed the effect of Lactobacillus rhamnosus PB01 (DSM-14870) on sperm kinematic parameters in Normal-weight (NW) and diet-induced obese (DIO) models. NW and DIO C57BL/6NTac mice were divided into two subgroups with or without a single daily dose (1x109CFU) of L...
2017: PloS One
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