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https://www.readbyqxmd.com/read/29457367/sperm-morphological-normality-under-high-magnification-is-correlated-to-male-infertility-and-predicts-embryo-development
#1
B F Zanetti, D P A F Braga, R R Provenza, R C S Figueira, A Iaconelli, E Borges
Human sperm morphology has been described as an essential parameter for the diagnosis of male infertility and a prognostic indicator of natural or assisted pregnancies. Nevertheless, standard morphological assessment remains a subjective analysis and its impact on intracytoplasmic sperm injection (ICSI) is also of limited value. The objective of this prospective cohort study was to investigate whether motile sperm organelle morphology examination (MSOME) can improve semen analysis by better defining male infertility and providing a better prognosis for ICSI up to a year later...
February 18, 2018: Andrology
https://www.readbyqxmd.com/read/29456989/effect-of-thymoquinone-on-reproductive-parameter-in-morphine-treated-male-mice
#2
Mohammad Reza Salahshoor, Mojdeh Haghjoo, Shiva Roshankhah, Fatemeh Makalani, Cyrus Jalili
Background: Thymoquinone as the main active component of Nigella sativa might have a various pharmacological effects such as antiapoptotic and antioxidant. Morphine is commonly used for the treatment of severe pain that can increase the generation of free radicals and affects the spermatogenesis. This study was designed to evaluate protective effects of thymoquinone against morphine-induced damages, sperm viability, count, motility, morphology and testis histology, and nitric oxide and testosterone hormone of the mice...
2018: Advanced Biomedical Research
https://www.readbyqxmd.com/read/29456034/cryopreservation-and-storage-of-cat-epididymal-sperm-using-%C3%A2-75-%C3%A2-c-freezer-vs-liquid-nitrogen
#3
K Buranaamnuay
The quality of cat epididymal sperm cryopreserved and stored by four methods was assessed. Epididymal sperm were suspended in Tris-glucose-citrate egg yolk extender, loaded in 0.25 mL straws and then cryopreserved. The samples in a standard protocol (LN) were cryopreserved and stored in liquid nitrogen (LN2 ). The sperm straws in the LN-Fr-LN group were cryopreserved in LN2 and stored in a -75 °C freezer; the straws were returned to LN2 prior to thawing. The loaded straws in the Fr group were transferred directly from 4 °C to the freezer and maintained in the freezer until thawing...
February 12, 2018: Animal Reproduction Science
https://www.readbyqxmd.com/read/29455993/polysaccharide-from-ostrea-rivularis-attenuates-reproductive-oxidative-stress-damage-via-activating-keap1-nrf2-are-pathway
#4
Shijie Li, Zhuoyue Song, Tingting Liu, Jian Liang, Jun Yuan, Zhanchi Xu, Zhanghua Sun, Xiaoping Lai, Qingping Xiong, Danyan Zhang
The purpose of this study was to investigate the effects of Ostrea rivularis polysaccharide (ORP) against testicular oxidative stress injury via kelch-like ECH-associated protein 1-nuclear erythroid 2-related factor 2/antioxidant response element (Keap1-Nrf2/ARE) pathway. In pharmacological experiments in vivo, ORP administration could dose-dependently inhibit body and testicular weight loss, ameliorate epididymal sperm quality and protect reproductive impairment in cyclophosphamide-induced male Balb/c mice...
April 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29454799/identification-of-genomic-variants-causing-sperm-abnormalities-and-reduced-male-fertility
#5
REVIEW
Jeremy F Taylor, Robert D Schnabel, Peter Sutovsky
Whole genome sequencing has identified millions of bovine genetic variants; however, there is currently little understanding about which variants affect male fertility. It is imperative that we begin to link detrimental genetic variants to sperm phenotypes via the analysis of semen samples and measurement of fertility for bulls with alternate genotypes. Artificial insemination (AI) bulls provide a useful model system because of extensive fertility records, measured as sire conception rates (SCR). Genetic variants with moderate to large effects on fertility can be identified by sequencing the genomes of fertile and subfertile or infertile sires identified with high or low SCR as adult AI bulls or yearling bulls that failed Breeding Soundness Evaluation...
February 10, 2018: Animal Reproduction Science
https://www.readbyqxmd.com/read/29452915/effect-of-male-body-mass-index-on-assisted-reproduction-treatment-outcome-an-updated-systematic-review-and-meta-analysis
#6
REVIEW
Rabia Mushtaq, Jyotsna Pundir, Chiara Achilli, Osama Naji, Yacoub Khalaf, Tarek El-Toukhy
Men with a body mass index (BMI) of 30 or over are more likely to have reduced fertility and fecundity rates. This systematic review and meta-analysis evaluated the effect of male BMI on IVF and intracytoplasmic sperm injection (ICSI) outcome. An electronic search for published literature was conducted in MEDLINE and EMBASE between 1966 and November 2016. Outcome measures were clinical pregnancy rates (CPR) and live birth rates (LBR) per IVF or ICSI cycle. Eleven studies were identified, including 14,372 cycles; nine reported CPR and seven reported LBR...
February 2, 2018: Reproductive Biomedicine Online
https://www.readbyqxmd.com/read/29452361/iui-review-and-systematic-assessment-of-the-evidence-that-supports-global-recommendations
#7
Ben Cohlen, Aartjan Bijkerk, Sheryl Van der Poel, Willem Ombelet
BACKGROUND: IUI with or without ovarian stimulation (OS) has become a first-line treatment option for many infertile couples, worldwide. The appropriate treatment modality for couples and their clinical management through IUI or IUI/OS cycles must consider maternal and perinatal outcomes, most notably the clinical complication of higher-order multiple pregnancies associated with IUI-OS. With a current global emphasis to continue to decrease maternal and perinatal mortality and morbidity, the World Health Organization (WHO) had established a multi-year project to review the evidence for the establishment of normative guidance for the implementation of IUI as a treatment to address fertility problems, and to consider its cost-effectiveness for lower resource settings...
February 14, 2018: Human Reproduction Update
https://www.readbyqxmd.com/read/29451144/moderate-dose-of-trolox-preventing-the-deleterious-effects-of-wi-fi-radiation-on-spermatozoa-in-vitro-through-reduction-of-oxidative-stress-damage
#8
Shang-Shu Ding, Ping Sun, Zhou Zhang, Xiang Liu, Hong Tian, Yong-Wei Huo, Li-Rong Wang, Yan Han, Jun-Ping Xing
Background: The worsening of semen quality, due to the application of Wi-Fi, can be ameliorated by Vitamin E. This study aimed to demonstrate whether a moderate dose of trolox, a new Vitamin E, inhibits oxidative damage on sperms in vitro after exposure to Wi-Fi radiation. Methods: Each of the twenty qualified semen, gathered from June to October 2014 in eugenics clinic, was separated into four aliquots, including sham, Wi-Fi-exposed, Wi-Fi plus 5 mmol/L trolox, and Wi-Fi plus 10 mmol/L trolox groups...
February 20, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29450923/organic-zinc-and-copper-supplementation-on-antioxidant-protective-mechanism-and-their-correlation-with-sperm-functional-characteristics-in-goats
#9
M Narasimhaiah, A Arunachalam, S Sellappan, V K Mayasula, P R Guvvala, S K Ghosh, V Chandra, J Ghosh, H Kumar
Trace minerals feeding had significant effects on sperm production and fertility with better absorption and proper utilization within the body for optimum reproductive function. Several studies have shown that more influenced trace elements in the diets of animals are copper (Cu) and zinc (Zn). Bucks showing deficiency of this mineral might affect the quality of semen production which in turn would affect the fertility. This experiment was thus designed to test the effects of organic Cu and Zn supplementation on antioxidants enzyme activities and sperm functional attributes in fresh semen of bucks...
February 15, 2018: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/29449095/relationships-between-bacteriospermia-dna-integrity-nuclear-protamine-alteration-sperm-quality-and-icsi-outcome
#10
Ali Zeyad, Mohammed Hamad, Houda Amor, Mohamad Eid Hammadeh
The Aim of this study was to evaluate the effects of bacteriospermia on human sperm parameters, nuclear protamines, DNA integrity and ICSI outcome in patients enrolled for ICSI treatment. 84 unselected couples consulting in infertility and obstetrics clinic and enrolled for ICSI treatment were included in this study. The semen specimens were screened bacteriologically; semen and sperm parameters were also evaluated according to WHO guidelines. DNA integrity, protamines concentration and protamine deficiency were estimated by TUNEL assay, AU-PAGE and Chromomycin (CMA3) respectively...
February 12, 2018: Reproductive Biology
https://www.readbyqxmd.com/read/29449081/urinary-concentrations-of-benzophenone-type-ultra-violet-light-filters-and-reproductive-parameters-in-young-men
#11
Evdochia Adoamnei, Jaime Mendiola, Miriam Moñino-García, Fernando Vela-Soria, Luz M Iribarne-Durán, Mariana F Fernández, Nicolás Olea, Niels Jørgensen, Shanna H Swan, Alberto M Torres-Cantero
BACKGROUND: Benzophenone (BP)-type ultraviolet (UV) light filters are chemicals frequently added to personal care products, insect repellents, sunscreens, and beverage and food packaging to diminish the harmful effects of UV sunlight on human skin or foodstuffs. BP-type UV filters have shown negative effects on male reproduction function in in vitro and animal models, but human epidemiologic studies are limited. The goal of this study was to examine associations between urinary concentrations of BP-type UV filters and semen quality and reproductive hormone levels...
February 9, 2018: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/29448494/photocatalytic-degradation-of-oxytetracycline-by-ternary-mixed-catalyst-and-toxicity-assessment-using-boar-sperm
#12
Kefu Zhou, Xiao-Dan Xie, Xin-Yan Hu, Ming-Cheng Chen, Chang-Tang Chang
Response surface methodology was adopted to obtain ternary mixed catalysts of TiO2-loaded ZSM-5 zeolite and graphene. Oxytetracycline was used as challenged toxicant to evaluate the photocatalytic degradation efficiency of the composites. The optimal weight ratio of graphene, TiO2, and ZSM-5 was 1:8:1. The composites were characterized by ultraviolet-visible spectroscopy, X-ray diffraction, fourier transform infrared, N2 adsorption-desorption isotherms, and transmission electron microscope with an energy-dispersive spectroscopy system, etc...
February 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29448163/sperm-dna-fragmentation-an-early-and-reliable-marker-of-air-pollution
#13
Liana Bosco, Tiziana Notari, Giovanni Ruvolo, Maria C Roccheri, Chiara Martino, Rosanna Chiappetta, Domenico Carone, Giosuè Lo Bosco, Laura Carrillo, Salvatore Raimondo, Antonino Guglielmino, Luigi Montano
Environmental factors could have a key role in the continuous and remarkable decline of sperm quality observed in the last decades. This study compared the seminal parameters and sperm DFI in men living in areas with different levels of air pollution. Results demonstrate that both steel plants workers and patients living in a high polluted area show a mean percentage of sperm DNA fragmentation above 30%, highlighting a clear sperm damage. In this work, two different techniques were used to measure sperm DNA damage in patients' groups, finding in both cases a high sperm DFI in patients living in polluted areas...
February 7, 2018: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/29446210/lead-exposure-reduces-sperm-quality-and-dna-integrity-in-mice
#14
Cuiling Li, Kai Zhao, Huiping Zhang, Lili Liu, Fei Xiong, Kunyu Wang, Biao Chen
Toxicity of lead on male reproductive functions has raised wide public concern as environmental lead contamination remains common worldwide. Conflicting and controversial data are available regarding effects of lead on male fertility. More importantly, our knowledge on effects of lead on sperm DNA integrity is significantly limited. Thus, further studies should focus on this issue. In the current study, adult male mice were exposed to a series of lead acetate concentrations in drinking water for six weeks. Following administration, lead levels in blood, testicles, and epididymis were measured, and potential changes in morphology of testis and epididymis due to lead exposure were identified...
February 15, 2018: Environmental Toxicology
https://www.readbyqxmd.com/read/29443060/avian-semen-collection-by-cloacal-massage-and-isolation-of-dna-from-sperm
#15
Aurelia C Kucera, Britt J Heidinger
Collection of semen may be useful for a wide range of applications including studies involving sperm quality, sperm telomere dynamics, and epigenetics. Birds are widely used subjects in biological research and are ideal for studies involving repeated sperm samples. However, few resources are currently available for those wishing to learn how to collect and extract DNA from avian sperm. Here we describe cloacal massage, a gentle, non-invasive manual technique for collecting avian sperm. Although this technique is established in the literature, it can be difficult to learn from the available descriptions...
February 5, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29443049/handling-and-treatment-of-male-european-eels-anguilla-anguilla-for-hormonal-maturation-and-sperm-cryopreservation
#16
Juan G Herranz-Jusdado, Eszter Kása, Tímea Kollár, Víctor Gallego, David S Peñaranda, Christoffer Rozenfeld, Luz Pérez, Ákos Horváth, Juan F Asturiano
During the last years, several research groups have been working on the development and improvement of new protocols for the European eel handling and maturation. As of yet, weekly injections of human chorionic gonadotropin (hCG) have proved to maturate males after just 5-6 weeks of treatment, producing high volumes of high-quality sperm during several weeks. In addition, sperm cryopreservation protocols using different extenders, cryoprotectants and cooling and thawing times have been previously described for European eel...
January 28, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29440764/sperm-selection-by-thermotaxis-improves-icsi-outcome-in-mice
#17
Serafín Pérez-Cerezales, Ricardo Laguna-Barraza, Alejandro Chacón de Castro, María Jesús Sánchez-Calabuig, Esther Cano-Oliva, Francisco Javier de Castro-Pita, Luis Montoro-Buils, Eva Pericuesta, Raúl Fernández-González, Alfonso Gutiérrez-Adán
The ejaculate is a heterogeneous pool of spermatozoa containing only a small physiologically adequate subpopulation for fertilization. As there is no method to isolate this subpopulation, its specific characteristics are unknown. This is one of the main reasons why we lack effective tools to identify male infertility and for the low efficiency of assisted reproductive technologies. The aim of this study was to improve ICSI outcome by sperm selection through thermotaxis. Here we show that a specific subpopulation of mouse and human spermatozoa can be selected in vitro by thermotaxis and that this subpopulation is the one that enters the fallopian tube in mice...
February 13, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29438900/sperm-quality-biomarkers-complement-reproductive-and-endocrine-parameters-in-investigating-environmental-contaminants-in-common-carp-cyprinus-carpio-from-the-lake-mead-national-recreation-area
#18
Jill A Jenkins, Michael R Rosen, Rassa O Draugelis-Dale, Kathy R Echols, Leticia Torres, Carla M Wieser, Constance A Kersten, Steven L Goodbred
Lake Mead National Recreational Area (LMNRA) serves as critical habitat for several federally listed species and supplies water for municipal, domestic, and agricultural use in the Southwestern U.S. Contaminant sources and concentrations vary among the sub-basins within LMNRA. To investigate whether exposure to environmental contaminants is associated with alterations in male common carp (Cyprinus carpio) gamete quality and endocrine- and reproductive parameters, data were collected among sub-basins over 7 years (1999-2006)...
February 10, 2018: Environmental Research
https://www.readbyqxmd.com/read/29435182/dual-trigger-of-triptorelin-and-hcg-optimizes-clinical-outcome-for-high-ovarian-responder-in-gnrh-antagonist-protocols
#19
Saijiao Li, Danni Zhou, Tailang Yin, Wangming Xu, Qingzhen Xie, Dan Cheng, Jing Yang
In this paper, a retrospective cohort study was conducted to the high ovarian responders in GnRH-antagonist protocols of IVF/ICSI cycles. The purpose of the study is to investigate whether dual triggering of final oocyte maturation with a combination of gonadotropin-releasing hormone (GnRH) agonist and human chorionic gonadotropin (HCG) can improve the clinical outcome compared with traditional dose (10000IU) HCG trigger and low-dose (8000IU) HCG trigger for high ovarian responders in GnRH-antagonist in vitro fertilization/intracytoplasmic sperm injection (IVF-ICSI) cycles...
January 12, 2018: Oncotarget
https://www.readbyqxmd.com/read/29432942/improving-sperm-viability-after-spinal-cord-injury-using-hyperbaric-therapy
#20
Asdrubal Falavigna, Pedro G da Silva, Lucas P Conzatti, Louise M Corbellini, Caroline S Cagliari, Fabio F Pasqualotto
BACKGROUND: Infertility is one of many complications of spinal cord injury (SCI) in male patients who are often at the peak of their reproductive life. This study evaluated the effects of hyperbaric therapy (HT) on the quality of sperm of rats submitted to SCI, correlating the findings with a histological analysis of the testicles. METHODS: Randomized experimental study in animals. Eighteen rats were submitted to SCI with a MASCIS Impactor and randomly allocated to either a HT or a control group...
February 9, 2018: World Neurosurgery
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