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https://www.readbyqxmd.com/read/28649382/does-sperm-quality-and-dna-integrity-differ-in-cryopreserved-semen-samples-from-young-adult-and-aged-nellore-bulls
#1
J T Carreira, J T Trevizan, I R Carvalho, B Kipper, L H Rodrigues, C Silva, S H V Perri, J R Drevet, M B Koivisto
BACKGROUND: In humans, it is now well documented that rising paternal age is correlated with decreased sperm DNA integrity and embryonic developmental failures. On the other side of the coin, it is also reported that very young fathers such as teenagers carry an increased risk of adverse birth outcomes. These observations suggest that, at least in humans, there is an age window for optimal sperm DNA integrity. In bovine, little is known about sperm DNA quality in young bulls and how it evolves with age...
2017: Basic and Clinical Andrology
https://www.readbyqxmd.com/read/28647897/varicocele-and-semen-quality-a-retrospective-case-control-study-of-4230-patients-from-a-single-centre
#2
F Pallotti, D Paoli, T Carlini, A R Vestri, G Martino, A Lenzi, F Lombardo
PURPOSE: The aim of the present study is to assess impairment of spermatogenesis induced by varicocele in, to our knowledge, the largest single-centre caseload available to date. MATERIALS AND METHODS: We conducted a retrospective study on 4230 consecutive patients attending our Department for andrological outpatient assessment and preconception check-ups between 2011 and 2014. A total of 2113 patients had varicocele (Group V), while the remaining 2117 were selected as the control group (Group C)...
June 24, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28646871/coffee-and-caffeine-intake-and-male-infertility-a-systematic-review
#3
REVIEW
Elena Ricci, Paola Viganò, Sonia Cipriani, Edgardo Somigliana, Francesca Chiaffarino, Alessandro Bulfoni, Fabio Parazzini
BACKGROUND: Semen quality, a predictor of male fertility, has been suggested declining worldwide. Among other life style factors, male coffee/caffeine consumption was hypothesized to influence semen parameters, but also sperm DNA integrity. To summarize available evidence, we performed a systematic review of observational studies on the relation between coffee/caffeine intake and parameters of male fertility including sperm ploidy, sperm DNA integrity, semen quality and time to pregnancy...
June 24, 2017: Nutrition Journal
https://www.readbyqxmd.com/read/28641947/effectiveness-of-human-spermatozoa-biomarkers-as-indicators-of-structural-damage-during-cryopreservation
#4
María José Gómez-Torres, Llanos Medrano, Alejandro Romero, Pedro José Fernández-Colom, Jon Aizpurúa
Human spermatozoa cryopreservation techniques are used to maintain and protect male fertility in cases such as infertility and malignancy treatments. However, during cryopreservation, the spermatozoa's metabolic rate is reduced and they undergo dramatic functional and structural changes owing to exposure to cryoprotectants and freezing-thawing procedures. While the effects of cryopreservation on cells are documented, to date the induced cryodamage on structural and/or functional sperm biomarkers is not well established at multivariate scale...
June 19, 2017: Cryobiology
https://www.readbyqxmd.com/read/28638871/effect-of-yishenjianpi-recipe-on-semen-quality-and-sperm-mitochondria-in-mice-with-oligoasthenozoospermia-induced-by-tripterygium-glycosides
#5
Wen Sheng, Yao-Sheng Zhang, Yue-Qing Li, Xiao-Ni Wu, Li-Min Chai, Li-Feng Yue, Juan-Liu, Jin Ding, Xian-Rui Li, Meng Chen, Jian-Wei Shang
BACKGROUND: Kidney tonifying - spleen strengthening method being one of the modalities for treatment of astheno-oligozoospermia is currently commonly used in the clinical setting. To investigate the mechanism of YiShenJianPi (YSJP) Recipe, used in Traditional Chinese Medicine to benefit "the kidney" and strengthen "the spleen". MATERIALS AND METHODS: Oligoasthenozoospermia, male BALB/c mice were randomly divided into normal control, disease model, positive control, low-dosage and high-dosage groups...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/28635070/adjuvant-treatment-with-qilin-pill-for-men-with-oligoasthenospermia-a-meta-analysis-of-randomized-controlled-trials
#6
REVIEW
Xin Jin, Changfeng Man, Dandan Gong, Yu Fan
Qilin pill has been used in the management of oligoasthenospermia. This meta-analysis aimed to evaluate the effects of Qilin pill as an adjunctive therapy on semen parameters in oligoasthenospermic men. A comprehensive literature search was conducted in PubMed, Embase, Cochrane Library, Wanfang, CNKI, and VIP databases until June 2016. Randomized controlled trials (RCTs) that evaluated Qilin pill as an adjunctive therapy in oligoasthenospermic were included. Dichotomous data and continuous data were calculated as the risk ratio (RR) and mean difference (MD) with their 95% confidence interval (CI), respectively...
June 21, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28627195/exercise-improved-semen-quality-and-reproductive-hormone-levels-in-sedentary-obese-adults
#7
Miguel Ángel Rosety, Antonio Jesus Díaz, Jesús María Rosety, María Teresa Pery, Francisco Brenes-Martín, Marco Bernardi, Natalia García, Manuel Rosety-Rodríguez, Francisco Javier Ordoñez, Ignacio Rosety
INTRODUCTION: From the previously published literature on the relationship between obesity and infertility, it is clear that male obesity negatively impacts semen quality. Accordingly, this study was conducted to determine whether regular exercise may improve semen quality in sedentary obese adults. MATERIAL AND METHODS: Ninety obese adults were randomly allocated to the intervention (n = 45) or control group (n = 45). Participants in the intervention group performed a 16-week aerobic training program in a treadmill, three sessions per week, consisting of a warm-up (10-15 minutes), 35-50 minutes treadmill exercise (increasing five minutes per four weeks) at a work intensity of 50-65% of peak heart rate (increasing a 5% per four weeks) and cooling-down (5-10 minutes)...
June 5, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28625282/high-intensity-exercise-training-for-improving-reproductive-function-in-infertile-patients-a-randomized-controlled-trial
#8
Behzad Hajizadeh Maleki, Bakhtyar Tartibian
OBJECTIVE: The purpose of this RCT was to investigate whether a 24-week program of high-intensity exercise was beneficial for improving reproductive function in infertile male patients. METHODS: Infertile men (n = 433) were randomly assigned to exercise (n = 218) and non-exercise (n = 215) groups. The seminal markers of inflammation and oxidative stress, semen quality parameters, sperm DNA fragmentation, and pregnancy rate were measured at baseline, at the end of week 12, at the end of week 24, and at 7 and 30 days during recovery...
July 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28618741/routine-assessment-of-occupational-exposure-and-its-relation-to-semen-quality-in-infertile-men-a-cross-sectional-study
#9
Salima Daoud, Afifa Sellami, Mehdi Bouassida, Sahbi Kebaili, Leila Ammar Keskes, Tarek Rebai, Nozha Chakroun Feki
BACKGROUND/AIM: Concerns about the detrimental effects of occupational and environmental exposure on male reproductive function have been raised by reports of declining sperm quality over the last decades. The aim of this study was to investigate the association between altered semen parameters and exposure to occupational risk factors as assessed by questionnaire. MATERIALS AND METHODS: We conducted a cross-sectional questionnaire-based study among a population of 2122 men who underwent andrological investigation for couple infertility...
June 12, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28614535/should-azoospermic-patients-with-varicocele-disease-undergo-surgery-to-recover-fertility
#10
Leonardo de Souza Alves, Francisco Batista de Oliveira
Introduction: Varicocele disease is well-known cause of infertility in men. The presence of spermatic varices veins create a hostile environment to spermatogenesis. It results in reduced quality of the sperm production and in some cases can determine a total absence of sperm. The varicocelectomy procedure in patients with non-obstructive azoospermia (NOA) can raise the rates of sperm in the semen analysis. A positive rate for sperm, even if very low, may be sufficient to enable the capture of sperm intended for in-vitro fertilization without the use of donor sperm...
April 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28611311/genome-wide-5-hydroxymethylcytosine-patterns-in-human-spermatogenesis-are-associated-with-semen-quality
#11
Olga A Efimova, Anna A Pendina, Andrei V Tikhonov, Sergey E Parfenyev, Irina D Mekina, Evgeniia M Komarova, Mariia A Mazilina, Eugene V Daev, Olga G Chiryaeva, Ilona A Galembo, Mikhail I Krapivin, Oleg S Glotov, Irina S Stepanova, Svetlana A Shlykova, Igor Yu. Kogan, Alexander M Gzgzyan, Tatyana V Kuznetzova, Vladislav S Baranov
We performed immunofluorescent analysis of DNA hydroxymethylation and methylation in human testicular spermatogenic cells from azoospermic patients and ejaculated spermatozoa from sperm donors and patients from infertile couples. In contrast to methylation which was present throughout spermatogenesis, hydroxymethylation was either high or almost undetectable in both spermatogenic cells and ejaculated spermatozoa. On testicular cytogenetic preparations, 5-hydroxymethylcytosine was undetectable in mitotic and meiotic chromosomes, and was present exclusively in interphase spermatogonia Ad and in a minor spermatid population...
June 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28610652/novel-insights-into-the-role-of-cell-free-seminal-mrnas-on-semen-quality-and-cryotolerance-of-spermatozoa-in-bulls-bos-taurus
#12
Munivenkatappa Shilpa, Sellappan Selvaraju, Venkataswamy GirishKumar, Sivashanmugam Parthipan, Krishnan B Binsila, Arunachalam Arangasamy, Janivara Parameshwaraiah Ravindra
The aim of the present study was to ascertain the effectiveness of seminal plasma mRNAs as markers to assess the reproductive performance of bulls. Semen samples (33 ejaculates) from 11 bulls were evaluated for sperm kinematic and functional parameters. Total RNA was isolated from cell-free seminal (cfs) using TRIzol LS reagent and the concentration of cfs-RNA was 24.4±2.3µgmL-1 seminal plasma. The cfs-RNA was fragmented to a size of 25-500bp. Of the cfs-mRNAs screened using real time PCR, expression of protamine 1 (PRM1) was positively (P<0...
June 14, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28608609/artificial-insemination-with-frozen-thawed-boar-sperm
#13
REVIEW
Marc Yeste, Joan E Rodríguez-Gil, Sergi Bonet
Artificial insemination with frozen-thawed semen in pigs is not a routine technique; its use is restricted to specific cases, such as preservation of valuable genetic material (germplasm banks), safety strategies in case of natural disasters, long-distance transport of sperm, and in combination with sex-sorting. Cryoinjuries resulting from freeze-thawing protocols are a major concern with regard to the fertilization capacity of the treated sperm, which is lower than that of liquid-stored semen. Here we provide an overview of artificial insemination using cryopreserved sperm, and summarize the factors that influence cryopreservation success before, during, and after freeze-thaw (i...
June 13, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28608426/monitoring-of-libido-and-semen-quality-parameters-in-melatonin-treated-french-alpine-bucks-during-the-non-breeding-season
#14
S Vince, H Valpotić, V Berta, S Milinković-Tur, M Samardžija, J Grizelj, B Špoljarić, D Đuričić, I Nazansky, I Žura Žaja
The aim of this study was to investigate the effects of exogenous melatonin on libido and semen quality parameters in bucks during the non-breeding season. Twelve bucks of the French alpine breed from 1.5 to 4 years of age were assigned into melatonin (MG) and control (CG) groups, with 6 bucks in each group. The experimental period was 3 months (March-May), divided into six periods of 15 days each. The bucks in the MG group received four melatonin implants at the end of March. Two semen samples were taken from the bucks by artificial vagina once per week and their libido estimated...
June 13, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28606404/dietary-inclusion-of-fish-oil-changes-the-semen-lipid-composition-but-does-not-improve-the-post-thaw-semen-quality-of-ram-spermatozoa
#15
Rommy Díaz, Mariana A Torres, Erwin Paz, John Quiñones, Silvana Bravo, Jorge G Farías, Néstor Sepúlveda
The aim of this study was to investigate the effects of dietary fish oil (FO) time-response on the fatty acid profile, cholesterol levels and sperm cryosurvival in ram semen. Criollo Araucano rams were randomly assigned to two groups (n=4) according to the type of supplementation: a control group without FO and a supplemented group fed a diet with 3% FO for 8 weeks. The semen lipid profile and post-thaw sperm quality were analyzed at weeks 0 (pre-supplementation), 4, 8, 12 and 16 (post-supplementation) to evaluate the effects of FO supplementation by time interaction...
May 18, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28605667/single-versus-double-intrauterine-insemination-iui-for-pregnancy-a-systematic-review-and-meta-analysis
#16
REVIEW
Morteza Arab-Zozani, Carolina O Nastri
This study is focused in appraising the current evidence comparing double and single IUI for achieving a pregnancy. The primary outcomes were live birth and ectopic pregnancy per women randomized. Secondary outcomes included clinical pregnancy and miscarriage. The evaluation of the risk of bias within each study was structured using the Cochrane risk of bias and the overall quality of the body of evidence was assessed through the GRADE criteria. Electronic searches were run in 4 databases and resulted in 15 studies included encompassing 3795 women...
May 26, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28605649/direct-str-typing-from-presumptively-tested-and-untreated-body-fluids
#17
Phuvadol Thanakiatkrai, Krittika Raham, Jintana Pradutkanchana, Sujettana Sotthibandhu, Thitika Kitpipit
Body fluids provide key pieces of information for a forensic investigation. However, sometimes only a small amount of body fluids is found and/or DNA are also degraded by environmental factors at the crime scene. In extreme cases, a forensic analyst may have to decide whether to perform a presumptive test on the stains or proceed straightaway to DNA profiling, which could be wasteful for non-biological stains. Additionally, due to the inefficient DNA extraction process, the amount of DNA may not be enough for STR typing, especially if parts of the evidence had been subjected to presumptive testing...
June 6, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28603623/subinguinal-microsurgical-varicocelectomy-vs-percutaneous-embolization-in-infertile-men-prospective-comparison-of-reproductive-and-functional-outcomes
#18
Elie Bou Nasr, Mouath Binhazzaa, Thierry Almont, Pascal Rischmann, Michel Soulie, Eric Huyghe
BACKGROUND: Varicocele is a condition characterized by dilated, tortuous veins within the pampiniform venous plexus of the scrotal sac. Presence of varicocele is associated with an increased risk of alteration of semen parameters. The objective of this study was to compare the current standard in varicocele treatment procedures: sub-inguinal microscopic ligation to percutaneous embolization in terms of semen parameters improvement, fertility, and morbidity at the university hospital of Toulouse (France)...
2017: Basic and Clinical Andrology
https://www.readbyqxmd.com/read/28601160/sperm-collection-by-transrectal-ultrasound-guided-massage-of-the-accessory-sex-glands-is-less-stressful-than-electroejaculation-without-altering-sperm-characteristics-in-conscious-goat-bucks
#19
Silvia Abril-Sánchez, Aline Freitas-de-Melo, Florencia Beracochea, Juan Pablo Damián, Julia Giriboni, Julián Santiago-Moreno, Rodolfo Ungerfeld
In anesthetized non-domestic ruminants transrectal ultrasound-guided massage of the accessory sex glands (TUMASG) is an alternative method to collect semen slightly less stressful than electroejaculation (EE). However, some sperm characteristics are better when semen is collected with EE than with TUMASG. As anesthesia reduces the response to stressors, the advantages of TUMASG may be reduced in anesthetized animals, and thus, TUMASG may be even more advantageous in conscious animals. Therefore, the aim of the present study was to compare the stress response and the characteristics of the sperm collected with TUMASG and EE in conscious goat bucks...
August 2017: Theriogenology
https://www.readbyqxmd.com/read/28601154/spermatozoal-transcripts-expression-levels-are-predictive-of-semen-quality-and-conception-rate-in-bulls-bos-taurus
#20
Sivashanmugam Parthipan, Sellappan Selvaraju, Lakshminarayana Somashekar, Arunachalam Arangasamy, Muniandy Sivaram, Janivara Parameswaraiah Ravindra
Spermatozoal transcripts expression levels could be used to assess fertility potential of a male. The objective of the present study was to elucidate the predictive ability of the expression levels of growth, apoptosis and homeostasis regulating transcripts on sperm functions and fertility. The expression levels of spermatozoal RNA isolated from the neat semen samples were related to the good (discarded ejaculate, <25%; n = 7) and poor (discarded ejaculate, >40%, n = 6) quality semen producer and bulls (n = 12) with known conception rate...
August 2017: Theriogenology
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