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https://www.readbyqxmd.com/read/29149484/comparative-analysis-of-proteomes-between-diabetic-and-normal-human-sperm-insights-into-the-effects-of-diabetes-on-male-reproduction-based-on-the-regulation-of-mitochondria-related-proteins
#1
Tian An, Yue-Fen Wang, Jia-Xian Liu, Yan-Yun Pan, Yu-Fei Liu, Zhong-Chen He, Fang-Fang Mo, Jun Li, Li-Hua Kang, Yu-Jie Gu, Bo-Han Lv, Si-Huan Gao, Guang-Jian Jiang
This study sought to identify sources of the reduced fertility of men with type 2 diabetes mellitus. Significant reductions in semen volume, sperm concentration, and total sperm count were observed in diabetic individuals, while transmission electron microscopy revealed that the structure of mitochondria in the tail of sperm from diabetic patients was damaged. Proteins potentially associated with these sperm defects were identified using proteomics. Isobaric tagging for relative and absolute quantitation labeling and high-performance liquid chromatography-tandem mass spectrometry allowed us to identify 357 proteins significantly differentially expressed in diabetic versus control semen (>1...
November 17, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/29147953/impact-of-perfluorochemicals-on-human-health-and-reproduction-a-male-s-perspective
#2
REVIEW
C Foresta, S Tescari, A Di Nisio
Perfluoroalkyl compounds (PFCs) are a class of organic molecules used in industry and consumer products. PFCs are non-biodegradable and bioaccumulate in the environment and for these reasons they have been a major subject of research regarding their toxicity, environmental fate, and sources of human exposure, since they have been shown to induce severe health consequences, such as neonatal mortality, neurotoxicity and immunotoxicity. The aim of this review is to explore the existing knowledge of the interplay between PFCs exposure and human health, with a focus on male reproductive health, given the emerging gender differences in PFCs clearance and their interaction with sex hormones receptors...
November 17, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29147461/the-role-of-antioxidant-enzymes-in-the-ovaries
#3
REVIEW
Shan Wang, Guolin He, Meng Chen, Tao Zuo, Wenming Xu, Xinghui Liu
Proper physiological function of the ovaries is very important for the entire female reproductive system and overall health. Reactive oxygen species (ROS) are generated as by-products during ovarian physiological metabolism, and antioxidants are indicated as factors that can maintain the balance between ROS production and clearance. A disturbance in this balance can induce pathological consequences in oocyte maturation, ovulation, fertilization, implantation, and embryo development, which can ultimately influence pregnancy outcomes...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29145645/waddlia-chondrophila-a-chlamydia-related-bacterium-has-a-negative-impact-on-human-spermatozoa
#4
D Baud, N Vulliemoz, A Ammerdorffer, J Gyger, G Greub, V Castella, M Stojanov
STUDY QUESTION: What is the impact of Waddlia chondrophila, an emerging Chlamydia-related bacterium associated with miscarriage, on human spermatozoa? SUMMARY ANSWER: W. chondrophila had a negative impact on human spermatozoa (decrease in viability and mitochondrial membrane potential) and was not entirely removed from infected samples by density gradient centrifugation. WHAT IS KNOWN ALREADY: Bacterial infection or colonization might have a deleterious effect on male fertility...
November 14, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29140722/reproductive-impacts-of-endocrine-disrupting-chemicals-on-wildlife-species-implications-for-conservation-of-endangered-species
#5
Christopher W Tubbs, Caitlin E McDonough
Wildlife have proven valuable to our understanding of the potential effects of endocrine-disrupting chemicals (EDCs) on human health by contributing considerably to our understanding of the mechanisms and consequences of EDC exposure. But the threats EDCs present to populations of wildlife species themselves are significant, particularly for endangered species whose existence is vulnerable to any reproductive perturbation. However, few studies address the threats EDCs pose to endangered species owing to challenges associated with their study...
November 15, 2017: Annual Review of Animal Biosciences
https://www.readbyqxmd.com/read/29136189/serum-omega-3-fatty-acids-and-treatment-outcomes-among-women-undergoing-assisted-reproduction
#6
Y-H Chiu, A E Karmon, A J Gaskins, M Arvizu, P L Williams, I Souter, B R Rueda, R Hause, J E Chavarro
STUDY QUESTION: Are serum polyunsaturated fatty acids (PUFA) concentrations, including omega-3 (ω3-PUFA) and omega-6 (ω6-PUFA), related to ART outcomes? SUMMARY ANSWER: Serum levels of long-chain ω3-PUFA were positively associated with probability of live birth among women undergoing ART. WHAT IS KNOWN ALREADY: Intake of ω3-PUFA improves oocyte and embryo quality in animal and human studies. However, a recent cohort study found no relation between circulating ω3-PUFA levels and pregnancy rates after ART...
November 10, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29136143/time-varying-cycle-average-and-daily-variation-in-ambient-air-pollution-and-fecundability
#7
Carrie J Nobles, Enrique F Schisterman, Sandie Ha, Germaine M Buck Louis, Seth Sherman, Pauline Mendola
STUDY QUESTION: Does ambient air pollution affect fecundability? SUMMARY ANSWER: While cycle-average air pollution exposure was not associated with fecundability, we observed some associations for acute exposure around ovulation and implantation with fecundability. WHAT IS KNOWN ALREADY: Ambient air pollution exposure has been associated with adverse pregnancy outcomes and decrements in semen quality. STUDY DESIGN, SIZE, DURATION: The LIFE study (2005-2009), a prospective time-to-pregnancy study, enrolled 501 couples who were followed for up to one year of attempting pregnancy...
November 10, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29131658/measuring-male-to-male-differences-in-fertility-or-effects-of-semen-treatments
#8
Rupert P Amann, Richard G Saacke, Guy F Barbato, Dagmar Waberski
Fertility is a convenient but meaningless term unless the outcome measure is stipulated and accounts for dependence of male fertility on the female population. We describe outcome measures and detail the impacts of the physiological status of each female and her external environment, as well as management imposed by humans. We explain the dominant role of the female reproductive tract as a series of hurdles for sperm seeking an ovum. Each spermatozoon in an ejaculate is unique, although usually most are morphologically similar...
November 13, 2017: Annual Review of Animal Biosciences
https://www.readbyqxmd.com/read/29124676/cost-effectiveness-analysis-of-the-gonadotropin-treatments-hp-hmg-and-rfsh-for-assisted-reproductive-technology-in-france-a-markov-model-analysis
#9
Paul Barriere, Géraldine Porcu-Buisson, Samir Hamamah
OBJECTIVES: The objectives of this study were to assess (1) the expected cost of a live birth (LB) after in vitro fertilization with two different gonadotropin treatments [high purified human menopausal gonadotropin (HP-hMG) and recombinant follicle-stimulating hormone (rFSH)] as the single cost variable, and (2) the cost effectiveness of HP-hMG relative to rFSH in the context of the routine practice of assisted reproductive technology (ART) in France. METHODS: A Markov model was developed to simulate the therapeutic management, the in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) courses, and the effects of complications in hypothetical cohorts of 30,000 patients undergoing IVF/ICSI with fresh embryo transfer (up to four attempts) using data from the MERIT and MEGASET clinical trials or from French routine ART practice...
November 9, 2017: Applied Health Economics and Health Policy
https://www.readbyqxmd.com/read/29120059/source-and-sink-mechanisms-of-nitrogen-transport-and-use
#10
REVIEW
Mechthild Tegeder, Céline Masclaux-Daubresse
Contents I. II. III. IV. V. VI. VII. VIII. IX. X. References SUMMARY: Nitrogen is an essential nutrient for plant growth. World-wide, large quantities of nitrogenous fertilizer are applied to ensure maximum crop productivity. However, nitrogen fertilizer application is expensive and negatively affects the environment, and subsequently human health. A strategy to address this problem is the development of crops that are efficient in acquiring and using nitrogen and that can achieve high seed yields with reduced nitrogen input...
November 9, 2017: New Phytologist
https://www.readbyqxmd.com/read/29117320/update-on-fertility-preservation-from-the-barcelona-international-society-for-fertility-preservation-eshre-asrm-2015-expert-meeting-indications-results-and-future-perspectives
#11
Francisca Martinez
STUDY QUESTION: What progress has been made in fertility preservation (FP) over the last decade? SUMMARY ANSWER: FP techniques have been widely adopted over the last decade and therefore the establishment of international registries on their short- and long-term outcomes is strongly recommended. WHAT IS KNOWN ALREADY: FP is a fundamental issue for both males and females whose future fertility may be compromised. Reproductive capacity may be seriously affected by age, different medical conditions and also by treatments, especially those with gonadal toxicity...
September 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29112712/the-protective-role-of-melatonin-in-porcine-oocyte-meiotic-failure-caused-by-the-exposure-to-benzo-a-pyrene
#12
Yilong Miao, Changyin Zhou, Qingyun Bai, Zhaokang Cui, Xiayan ShiYang, Yajuan Lu, Mianqun Zhang, Xiaoxin Dai, Bo Xiong
STUDY QUESTION: Does melatonin restore the benzo(a)pyrene (BaP)-induced meiotic failure in porcine oocytes? SUMMARY ANSWER: Melatonin effectively inhibits the increased reactive oxygen species (ROS) level and apoptotic rate in BaP-exposed porcine oocytes to recover the meiotic failure. WHAT IS KNOWN ALREADY: BaP, a widespread environmental carcinogen found in particulate matter, 2.5 µm or less (PM2.5), has been shown to have toxicity at the level of the reproductive systems...
November 3, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29110743/rosmarinic-acid-modes-of-action-medicinal-values-and-health-benefits
#13
Mahmoud Alagawany, Mohamed Ezzat Abd El-Hack, Mayada Ragab Farag, Marappan Gopi, Kumaragurubaran Karthik, Yashpal Singh Malik, Kuldeep Dhama
The supplementation of livestock rations with herbs containing bioactive components, such as rosmarinic acid (RA), have shown promising results as a natural feed additive in promoting growth, productive and reproductive performance, feed utilization, fertility, anti-oxidant status and immunologic indices. Furthermore, RA reportedly reduces the risks of various animal diseases and mitigates side effects of chemical and synthetic drugs. RA is a natural polyphenol present in several Lamiaceae herbs like Perilla frutescens, and RA is becoming an integral component of animal nutrition as it counters the effect of reactive oxygen species induced in the body as a consequence of different kinds of stressors...
November 7, 2017: Animal Health Research Reviews
https://www.readbyqxmd.com/read/29096269/quality-of-common-marmoset-callithrix-jacchus-oocytes-collected-after-ovarian-stimulation
#14
Akifumi Kanda, Asako Nobukiyo, Miyuki Yoshioka, Teruhiko Hatakeyama, Yusuke Sotomaru
The common marmoset (Callithrix jacchus) is an experimental animal that is considered suitable for the creation of next-generation human disease models. It has recently been used in the reproductive technology field. Oocytes can be effectively collected from female marmosets via ovarian stimulation with injections of follicle-stimulating hormone (FSH) and human chorionic gonadotropin (hCG). The oocytes, collected about 28 h after the hCG injection, include both premature oocytes and postmature (in vivo matured; IVO) oocytes, and the premature oocytes can be matured by in vitro culture (in vitro matured; IVM)...
October 22, 2017: Theriogenology
https://www.readbyqxmd.com/read/29095856/reproductive-effects-of-cadmium-on-sperm-function-and-early-embryonic-development-in-vitro
#15
Li-Lin Zhao, Yan-Fei Ru, Miao Liu, Jia-Nan Tang, Ju-Fen Zheng, Bin Wu, Yi-Hua Gu, Hui-Juan Shi
Cadmium is a major environmental toxicant that is released into the atmosphere, water and soil in the form of cadmium oxide, cadmium chloride, or cadmium sulfide via industrial activities, such as the manufacturing of batteries and pigments, metal smelting and refining and municipal waste incineration. In the present study, we investigated the effects of cadmium exposure on sperm quality parameters, fertilization capacity and early embryonic development. Our study showed that in vitro incubation of human or mouse sperms with cadmium for a long time (up to 24 hours) could significantly decreased sperm motility in a concentration- and time-dependent manner...
2017: PloS One
https://www.readbyqxmd.com/read/29084307/association-between-pesticide-residue-intake-from-consumption-of-fruits-and-vegetables-and-pregnancy-outcomes-among-women-undergoing-infertility-treatment-with-assisted-reproductive-technology
#16
Yu-Han Chiu, Paige L Williams, Matthew W Gillman, Audrey J Gaskins, Lidia Mínguez-Alarcón, Irene Souter, Thomas L Toth, Jennifer B Ford, Russ Hauser, Jorge E Chavarro
Importance: Animal experiments suggest that ingestion of pesticide mixtures at environmentally relevant concentrations decreases the number of live-born offspring. Whether the same is true in humans is unknown. Objective: To examine the association of preconception intake of pesticide residues in fruits and vegetables (FVs) with outcomes of infertility treatment with assisted reproductive technologies (ART). Design, Setting, and Participants: This analysis included 325 women who completed a diet assessment and subsequently underwent 541 ART cycles in the Environment and Reproductive Health (EARTH) prospective cohort study (2007-2016) at a fertility center at a teaching hospital...
October 30, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/29082206/the-society-for-translational-medicine-clinical-practice-guidelines-for-sperm-dna-fragmentation-testing-in-male-infertility
#17
REVIEW
Ashok Agarwal, Chak-Lam Cho, Ahmad Majzoub, Sandro C Esteves
Sperm DNA fragmentation (SDF) testing has been emerging as a valuable tool for male fertility evaluation. While the essential role of sperm DNA integrity in human reproduction was extensively studied, the clinical indication of SDF testing is less clear. This clinical practice guideline provides recommendations of clinical utility of the test supported by evidence. It is intended to serve as a reference for fertility specialists in identifying the circumstances in which SDF testing should be of greatest clinical value...
September 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/29082109/supporting-the-one-carbon-cycle-restores-ovarian-reserve-in-subfertile-women-absence-of-correlation-with-urinary-bisphenol-a-concentration
#18
Erica Silvestris, Marc Cohen, Dominique Cornet, Laetitia Jacquesson-Fournols, Patrice Clement, Jacques Chouteau, Marc Schneider, Thierry Besnard, Yves Ménézo
Environmental endocrine disrupting chemicals (EDCs), including bisphenol A (BPA), induce DNA methylation errors and oxidative stress, and alter fertility. Animal studies have demonstrated that supporting the one-carbon cycle (1-CC) with appropriate dietary supplements can reduce the effects of EDCs. Anti-Mullerian hormone (AMH), a marker of ovarian functionality, has been tested in subfertile female patients, to control this hypothesis in humans. Fifty-five women with a history of 3-7 years of infertility, with at least two assisted reproductive technology (ART) treatment failures, and low serum levels of AMH were enrolled in the study...
2017: BioResearch Open Access
https://www.readbyqxmd.com/read/29077936/urinary-concentrations-of-3-diethylcarbamoyl-benzoic-acid-dcba-a-major-metabolite-of-n-n-diethyl-m-toluamide-deet-and-semen-parameters-among-men-attending-a-fertility-center
#19
Thalia R Segal, Lidia Mínguez-Alarcón, Yu-Han Chiu, Paige L Williams, Feiby L Nassan, Ramace Dadd, María Ospina, Antonia M Calafat, Russ Hauser
STUDY QUESTION: Are specific gravity (SG)-adjusted urinary concentrations of 3-(diethylcarbamoyl)benzoic acid (DCBA) associated with semen parameters among men attending an academic fertility center? SUMMARY ANSWER: Our study did not demonstrate any association between SG-adjusted urinary DCBA concentrations and semen parameters among men attending an academic fertility center. WHAT IS KNOWN ALREADY: N,N-Diethyl-m-toluamide (DEET) is the most common active ingredient in consumer insect repellents...
October 25, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29077897/in-vivo-oxygen-temperature-and-ph-dynamics-in-the-female-reproductive-tract-and-their-importance-in-human-conception-a-systematic-review
#20
Ka Ying Bonnie Ng, Roel Mingels, Hywel Morgan, Nick Macklon, Ying Cheong
BACKGROUND: Despite advances in ART, implantation and pregnancy rates per embryo transfer still remain low. IVF laboratories strive to ensure that the process of handling gametes in vitro closely mimics the in vivo environment. However, there remains a lack of knowledge regarding the in vivo regulation and dynamic variation in biophysical parameters such as oxygen concentration, pH and temperature within the reproductive tract. OBJECTIVE AND RATIONALE: To undertake a systematic review of the current understanding of the physico-chemical parameters of oxygen tension (pO2), pH and temperature within the female reproductive tract, and their potential implications in clinical and pathological processes related to fertility and those pertaining to limited reproductive capacity...
October 25, 2017: Human Reproduction Update
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