keyword
MENU ▼
Read by QxMD icon Read
search

Semen quality

keyword
https://www.readbyqxmd.com/read/29474822/male-urinary-biomarkers-of-antimicrobial-exposure-and-bi-directional-associations-with-semen-quality-parameters
#1
Melissa M Smarr, Masato Honda, Kurunthachalam Kannan, Zhen Chen, Sungduk Kim, Germaine M Buck Louis
Antimicrobials including parabens, triclosan, and triclocarban have endocrine disrupting properties. Among 501 male partners of couples planning to become pregnant, preconception urinary biomarkers of parabens, triclosan and triclocarban exposure were quantified in spot urine samples. Men also provided two fresh semen samples collected approximately one month to undergo 24-hour semen quality analysis. Linear mixed-effects models, adjusted for creatinine, race, age and body mass index, were utilized to assess the relationship between log transformed chemical concentrations rescaled by their standard deviations and semen parameters...
February 20, 2018: Reproductive Toxicology
https://www.readbyqxmd.com/read/29471403/influence-of-distiller-s-dried-grains-with-solubles-on-ram-lamb-growth-and-reproductive-traits
#2
A R Crane, R R Redden, M S Crouse, J D Kirsch, P P Borowicz, J E Held, K C Swanson, C S Schauer
The hypothesis of this experiment was that increasing the inclusion level of distiller's dried grains (DDGS) in the diets would decrease semen quality but have no negative effects on growth performance. Following the removal of DDGS from the diet, it was hypothesized that the ram lambs would recover and become reproductively sound, independent of treatment. To test this hypothesis, Suffolk and Hampshire ram lambs (n = 112) were allocated to four treatments (n = 4 pens/treatment; 7 rams/pen) in a completely randomized design...
February 20, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29467846/asiatic-acid-attenuates-high-fat-diet-induced-impaired-spermatogenesis
#3
Xi-Li Miao, Gui-Min Gao, Lei Jiang, Rui Xu, Da-Peng Wan
Testicular cell apoptosis is associated with impaired spermatogenesis. It has been reported that Asiatic acid (AA) may suppress apoptosis. However, little is known about the effect of AA on high-fat diet (HFD)-induced impairment of spermatogenesis. The aim of the present study was to determine whether AA protects against HFD-induced impairment of spermatogenesis. Sprague-Dawley rats were randomly divided into three groups: Control group, HFD group and AA (50 mg/kg) + HFD group. Rats fed an HFD were orally administered with AA (50 mg/kg) daily for 12 weeks, and blood samples, testis and epididymis were harvested for further analysis...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29467056/review-integrating-a-semen-quality-control-program-and-sire-fertility-at-a-large-artificial-insemination-organization
#4
B R Harstine, M D Utt, J M DeJarnette
The technology available to assess sperm population characteristics has advanced greatly in recent years. Large artificial insemination (AI) organizations that sell bovine semen utilize many of these technologies not only for novel research purposes, but also to make decisions regarding whether to sell or discard the product. Within an AI organization, the acquisition, interpretation and utilization of semen quality data is often performed by a quality control department. In general, quality control decisions regarding semen sales are often founded on the linkages established between semen quality and field fertility...
February 22, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29460293/effect-of-the-sexual-abstinence-period-recommended-by-the-world-health-organization-on-clinical-outcomes-of-fresh-embryo-transfer-cycles-with-normal-ovarian-response-after-intracytoplasmic-sperm-injection
#5
J W Lee, J H Cha, S H Shin, H J Cha, J H Kim, C K Park, K A Pak, J S Yoon, S Y Park
This study was to investigate whether the sexual abstinence period (SAP) recommended by the World Health Organization (WHO) affects clinical outcomes. We compared the rate of clinical outcomes between 2-7 and ≥8 days of SAP in first fresh embryo transfer after intracytoplasmic sperm injection (ICSI) in groups of young maternal age (YMA: <38 years) and old maternal age (OMA: ≥38 years). We conducted a retrospective study of 449 first ICSI cycles with a normal ovarian response. SAP was identified before collecting the semen samples...
February 20, 2018: Andrologia
https://www.readbyqxmd.com/read/29459305/ambient-air-pollution-and-semen-quality
#6
Carrie J Nobles, Enrique F Schisterman, Sandie Ha, Keewan Kim, Sunni L Mumford, Germaine M Buck Louis, Zhen Chen, Danping Liu, Seth Sherman, Pauline Mendola
BACKGROUND: Ambient air pollution is associated with systemic increases in oxidative stress, to which sperm are particularly sensitive. Although decrements in semen quality represent a key mechanism for impaired fecundability, prior research has not established a clear association between air pollution and semen quality. To address this, we evaluated the association between ambient air pollution and semen quality among men with moderate air pollution exposure. METHODS: Of 501 couples in the LIFE study, 467 male partners provided one or more semen samples...
February 16, 2018: Environmental Research
https://www.readbyqxmd.com/read/29457367/sperm-morphological-normality-under-high-magnification-is-correlated-to-male-infertility-and-predicts-embryo-development
#7
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/29454799/identification-of-genomic-variants-causing-sperm-abnormalities-and-reduced-male-fertility
#8
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/29451144/moderate-dose-of-trolox-preventing-the-deleterious-effects-of-wi-fi-radiation-on-spermatozoa-in-vitro-through-reduction-of-oxidative-stress-damage
#9
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
#10
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
#11
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
#12
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/29443060/avian-semen-collection-by-cloacal-massage-and-isolation-of-dna-from-sperm
#13
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/29441202/pulse-wave-doppler-ultrasound-of-testicular-arteries-and-their-relationship-with-semen-characteristics-in-healthy-bulls
#14
Alessia Gloria, Augusto Carluccio, Laura Wegher, Domenico Robbe, Claudio Valorz, Alberto Contri
Background: Semen evaluation is used to estimate the testicular function. In bulls, the spermatozoa present in the ejaculate are the result of a process that begun more than 2 mo earlier, bequeathing a delayed depiction of the actual function of the testis. Since testis vascularization might be critical for the gonad function, selected pulse wave Doppler ultrasound parameters were assessed in this study, for instance the peak systolic velocity, the end diastolic velocity and the resistive index of the testicular artery along the spermatic cord, the marginal portion of the testicular artery and the intratesticular branches of the testicular artery both in healthy adult and young bulls...
2018: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/29434272/modified-inguinal-microscope-assisted-varicocelectomy-under-local-anesthesia-a-non-randomised-controlled-study-of-3565-cases
#15
Jin Wang, Qian Liu, Xun Wang, Rijian Guan, Sen Li, Youpeng Zhang, Yongbiao Cheng, Hanqing Zeng, Yong Tang, Zhaohui Zhu
Varicocele is a common abnormality, but the conventional microsurgical subinguinal varicocelectomy (CMSV) has some disadvantages. We invented Modified Inguinal Microscope-Assisted Varicocelectomy (MIMV) under local anesthesia. This study aims to evaluate MIMV by comparing it to CMSV in operating duration, time to return to normal activity, postoperative complications, achievement of natural pregnancy and improvement of semen quality for patients with infertility, pain score for those with scrotal pain, and so on...
February 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29432715/attenuation-of-cryopreservation-induced-oxidative-stress-by-antioxidant-impact-of-coenzyme-q10-on-the-quality-of-post-thawed-buck-spermatozoa
#16
Iman Yousefian, Mojtaba Emamverdi, Amir Karamzadeh-Dehaghani, Raziyeh Sabzian-Melei, Mahdi Zhandi, Ahmad Zare-Shahneh
The aim of this study was to determine the quality of post-thawed buck spermatozoa by attenuation of cryopreservation-induced oxidative stress using CoQ10, a lipophilic antioxidant. Ejaculates at every sampling period were collected from four Mahabadi bucks, pooled and diluted in soybean lecithin-based extenders containing 0 (negative control, NC), 0.5 (CQ0.05), 1 (CQ1), and 1.5 (CQ1.5) μM CoQ10 and 0.9% (v/v) DMSO (positive control, PC). The diluted semen was gradually cooled to 4 °C, then frozen and stored in liquid nitrogen...
February 9, 2018: Cryobiology
https://www.readbyqxmd.com/read/29431233/lactoferrin-increases-sperm-membrane-functionality-of-frozen-equine-semen
#17
H S Martins, G C da Silva, S F Cortes, F O Paes, O A Martins Filho, Mss Araujo, R Stahlberg, M A Lagares
During cryopreservation, sperm was submitted to an increase in reactive oxygen species generation. This work aimed to improve the quality of frozen equine sperm after the addition of antioxidants lactoferrin (Lf) and catalase (Cat) to a freezing extender. Semen from six stallions was frozen with the extenders: F1) control, INRA 82 freezing extender, F2) F1 + 500 μg/ml Lf and F3) F1 + 200 IU/ml Cat. After thawing, sperm motility parameters, membrane functionality and integrity, and acrosome integrity and spontaneous acrosome-reacted sperm were evaluated with a computer-assisted sperm analysis, a hypoosmotic swelling test and epifluorescent microscopy, respectively...
February 12, 2018: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/29430680/study-on-correlation-of-sperm-quality-parameters-with-antioxidant-and-oxidant-status-of-buffalo-bull-semen-during-various-stages-of-cryopreservation
#18
S A Lone, J K Prasad, S K Ghosh, G K Das, B Balamurugan, M R Verma
This investigation was carried out to study the correlation of sperm quality parameters with antioxidant and oxidant status of buffalo bull semen during various stages of cryopreservation. Semen samples were evaluated for sperm parameters (mass motility [MM], concentration [CON], progressive motility [PM], viability [VIB], acrosomal integrity [AI] and hypo-osmotic swelling [HOS] response), antioxidants (superoxide dismutase [SOD], catalase [CAT], glutathione peroxidase [GPx] and total antioxidant capacity [TAC]) and oxidants (Lipid peroxidation [LPO] and reactive oxygen species [ROS]) at fresh, pre-freeze and post-thaw stages...
February 11, 2018: Andrologia
https://www.readbyqxmd.com/read/29427573/cryoprotective-role-of-organic-zn-and-cu-supplementation-in-goats-capra-hircus-diet
#19
Arunachalam Arangasamy, Mayasula Venkata Krishnaiah, Narasimhaiah Manohar, Sellappan Selvaraju, Guvvala Pushpa Rani, Nira Manik Soren, Ippala Janardhan Reddy, Janivara Parameshwaraiah Ravindra
The current study focused on cryopreservation and assessment of characters of post-thaw semen of indigenous Osmanabadi bucks maintained with standard diet, supplemented with different concentrations of organic zinc (Zn), copper (Cu) or in combination, for a period of 180 days. The different doses of organic Zn and Cu were fed per kg DM basis, Zn groups (low: Zn20, medium: Zn40 and high: Zn60, Cu groups: (low: Cu12.5, medium: Cu25 and high: Cu37.5 and combination of Zn + Cu groups (low: Zn20 + Cu12.5, medium: Zn40 + Cu25 and high: Zn60 + Cu37...
February 7, 2018: Cryobiology
https://www.readbyqxmd.com/read/29426029/endocrine-disrupting-chemicals-in-seminal-plasma-and-couple-fecundity
#20
Germaine M Buck Louis, Melissa M Smarr, Liping Sun, Zhen Chen, Masato Honda, Wei Wang, Rajendiran Karthikraj, Jennifer Weck, Kurunthachalam Kannan
Growing evidence supports the importance of men's exposure to non-persistent endocrine disruptors (EDCs) and couple fecundability, as measured by time-to-pregnancy (TTP). This evolving literature contrasts with the largely equivocal findings reported for women's exposures and fecundity. While most evidence relies upon urinary concentrations, quantification of EDCs in seminal plasma may be more informative about potential toxicity arising within the testes. We analyzed 5 chemical classes of non-persistent EDCs in seminal plasma for 339 male partners of couples who were recruited prior to conception and who were followed daily until pregnant or after one year of trying...
February 6, 2018: Environmental Research
keyword
keyword
36591
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"