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https://www.readbyqxmd.com/read/28647785/fertility-preservation-for-trans-men-frozen-thawed-in-vitro-matured-oocytes-collected-at-the-time-of-ovarian-tissue-processing-exhibit-normal-meiotic%C3%A2-spindles
#1
S Lierman, K Tilleman, K Braeckmans, K Peynshaert, S Weyers, G T'Sjoen, P De Sutter
PURPOSES: At the moment of sex reassignment surgery (SRS), the ovarian tissue is sometimes cryopreserved as fertility preservation option for female-to-male trans men, also called trans men. During this preparation, cumulus-oocyte-complexes (COCs) can be found and in vitro matured. It is not known if these oocytes are developmentally competent. In order to use these oocytes for fertility preservation and subsequent fertilization, a normal spindle structure before and after vitrification is necessary...
June 24, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28646941/postwash-total-motile-sperm-count-should-it-be-included-as-a-standard-male-infertility-work-up
#2
Khaled Madbouly, Ahmed Isa, Mohamad Habous, Raed Almannie, Basim Abu-Rafea, Saleh Binsaleh
INTRODUCTION: Pregnancy rates after intrauterine insemination (IUI) varies greatly. We aimed to identify pre and post processing semen analysis parameters that may be predictive of successful pregnancy in couples undergoing IUI. MATERIALS AND METHODS: A retrospective study of the records of all couples underwent IUI for a 2 year period at our infertility center. Different characteristics of female subjects, pre and post processing semen parameters and treatment parameters were compared statistically...
June 2017: Canadian Journal of Urology
https://www.readbyqxmd.com/read/28646900/human-umbilical-cord-stem-cell-conditioned-medium-versus-serum-free-culture-medium-in-the-treatment-of-cryopreserved-human-ovarian-tissues-in-in-vitro-culture-a-randomized-controlled-trial
#3
Yingxian Jia, Xiaohan Shi, Yidong Xie, Xiaochuan Xie, Yan Wang, Shangwei Li
BACKGROUND: To reduce young female fertility loss, the in-vitro culture of cryopreserved ovarian cortical tissues (OCTs) is considered an effective approach without delaying treatment and undergoing stimulation medicine. However, ischemic damage and follicular loss during the in-vitro culture of OCTs are major technical challenges. Human umbilical cord stem cells (HUMSCs) and their conditioned medium (HUMSC-CM) have been considered to be potential resources for regeneration medicine because they secrete cytokines and enhance cell survival and function...
June 24, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28646452/dosage-effects-of-zp2-and-zp3-heterozygous-mutations-cause-human-infertility
#4
Wenqiang Liu, Kunming Li, Dandan Bai, Jiqing Yin, Yuanyuan Tang, Fengli Chi, Linfeng Zhang, Yu Wang, Jiaping Pan, Shanshan Liang, Yi Guo, Jingling Ruan, Xiaochen Kou, Yanhong Zhao, Hong Wang, Jiayu Chen, Xiaoming Teng, Shaorong Gao
The zona pellucida (ZP) is an extracellular matrix universally surrounding mammalian eggs, which is essential for oogenesis, fertilization, and pre-implantation embryo development. Here, we identified two novel heritable mutations of ZP2 and ZP3, both occurring in an infertile female patient with ZP-abnormal eggs. Mouse models with the same mutations were generated by CRISPR/Cas9 gene editing system, and oocytes obtained from female mice with either single heterozygous mutation showed approximately half of the normal ZP thickness compared to wild-type oocytes...
June 24, 2017: Human Genetics
https://www.readbyqxmd.com/read/28646317/di-n-butyl-phthalate-prompts-interruption-of-spermatogenesis-steroidogenesis-and-fertility-associated-with-increased-testicular-oxidative-stress-in-adult-male-rats
#5
Giribabu Nelli, Sreenivasula Reddy Pamanji
Di-n-butyl phthalate (DBP) is extensively used as plasticizer, and it was ubiquitary released into the environment. The present study was aimed to investigate the effect of DBP on reproductive competence in adult male rats. Adult male rats were received corn oil or DBP injection intraperitoneally (ip) at 100 and 500 mg/kg body weight on 90, 97, 104, and 111 days. Following completion of the experimental period, adult male rats were cohabitated with untreated proestrus female rats for determination of fertilization capacity...
June 24, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28645785/contraceptive-counseling-in-reproductive-aged-women-treated-for-breast-cancer-at-a-tertiary-care-institution-a-retrospective-analysis
#6
Sara L Johansen, Klaira Lerma, Kate A Shaw
OBJECTIVE: To assess the frequency of documented contraceptive and fertility preservation counseling for women treated for breast cancer. STUDY DESIGN: We conducted a chart analysis of female breast cancer patients (n=211) ages 18-45 receiving chemotherapy treatment at Stanford Comprehensive Cancer Center from 2010-2014. Primary outcomes of contraceptive counseling and fertility preservation counseling documentation were assessed for frequency. Secondary outcomes included pregnancy testing, contraception use, and pregnancy during treatment...
June 20, 2017: Contraception
https://www.readbyqxmd.com/read/28645693/male-mice-ultrasonic-vocalizations-enhance-female-sexual-approach-and-hypothalamic-kisspeptin-neuron-activity
#7
Akari Asaba, Takuya Osakada, Kazushige Touhara, Masahiro Kato, Kazutaka Mogi, Takefumi Kikusui
Vocal communication in animals is important for ensuring reproductive success. Male mice emit song-like "ultrasonic vocalizations (USVs)" when they encounter female mice, and females show approach to the USVs. However, it is unclear whether USVs of male mice trigger female behavioral and endocrine responses in reproduction. In this study, we first investigated the relationship between the number of deliveries in breeding pairs for 4months and USVs syllables emitted from those paired males during 3min of sexual encounter with unfamiliar female mice...
June 20, 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/28644873/circular-rna-expression-profiling-of-human-granulosa-cells-during-maternal-aging-reveals-novel-transcripts-associated-with-assisted-reproductive-technology-outcomes
#8
Jing Cheng, Jia Huang, Suzhen Yuan, Su Zhou, Wei Yan, Wei Shen, Yun Chen, Xi Xia, Aiyue Luo, Da Zhu, Shixuan Wang
Circular RNAs (circRNAs) are a unique class of endogenous RNAs which could be used as potential diagnostic and prognostic biomarkers of many diseases. Our study aimed to investigate circRNA profiles in human granulosa cells (GCs) during maternal aging and to uncover age-related circRNA variations that potentially reflect decreased oocyte competence. CircRNAs in GCs from in vitro fertilization (IVF) patients with young age (YA, ≤ 30 years) and advanced age (AA, ≥ 38 years) were profiled by microarray, and validated in 20 paired samples...
2017: PloS One
https://www.readbyqxmd.com/read/28643254/gene-targeting-in-rabbits-single-step-generation-of-knock-out-rabbits-by-microinjection-of-crispr-cas9-plasmids
#9
Yoshihiro Kawano, Arata Honda
The development of genome editing technology has allowed gene disruptions to be achieved in various animal species and has been beneficial to many mammals. Gene disruption using pluripotent stem cells is difficult to achieve in rabbits, but thanks to advances in genome editing technology, a number of gene disruptions have been conducted. This paper describes a simple and easy method for carrying out gene disruptions in rabbits using CRISPR/Cas9 in which the gene to be disrupted is marked, the presence or absence of off-target candidates is checked, and a plasmid allowing simultaneous expression of Cas9 and sgRNA is constructed...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28637747/f-actin-prevents-interaction-between-sperm-dna-and-the-oocyte-meiotic-spindle-in-c-elegans
#10
Michelle T Panzica, Harold C Marin, Anne-Cecile Reymann, Francis J McNally
Fertilization occurs during female meiosis in most animals, which raises the question of what prevents the sperm DNA from interacting with the meiotic spindle. In this study, we find that Caenorhabditis elegans sperm DNA stays in a fixed position at the opposite end of the embryo from the meiotic spindle while yolk granules are transported throughout the embryo by kinesin-1. In the absence of F-actin, the sperm DNA, centrioles, and organelles were transported as a unit with the yolk granules, resulting in sperm DNA within 2 µm of the meiotic spindle...
June 21, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28637085/successful-delivery-derived-from-cryopreserved-rare-human-spermatozoa-with-novel-cryopiece
#11
J Sun, W Chen, L Zhou, J Hu, Z Li, Z Zhang, Y Wu
Herein, we report the clinical outcomes following intracytoplasmic sperm injection (ICSI) with cryopiece cryopreserved rare human spermatozoa from severe male factor infertility patients. We established a novel cryopiece system on the basis of previous studies. In this study, 126 spermatozoa from four patients with non-obstructiveazoospermia (NOA) or severe oligozoospermia were stored in cryopiece and then thawed on the day of the oocyte retrieval, 88 (83%) spermatozoa were recovered with a 47.5% (38 of 80) motile rate...
June 21, 2017: Andrology
https://www.readbyqxmd.com/read/28636229/recovery-from-reproductive-and-morphological-abnormalities-in-medaka-oryzias-latipes-following-a-14-day-exposure-to-diclofenac
#12
Hirofumi Yokota, Kaho Higashi, Erina Hanada, Ei Matsuzaki, Yukinari Tsuruda, Tomoko Suzuki, Eiko Nakano, Sayaka Eguchi
Mating pairs of medaka (Oryzias latipes) were exposed to diclofenac (DCF) at measured concentrations of 0 (control), 7.1, 37, and 78 µg/L for 14 d under static-renewal conditions. Effects on reproductive success, as well as morphological abnormalities, of the fish were assessed. During the exposure period, both fecundity and fertility were significantly decreased in the 37 and 78 µg/L treatments groups, and swollen abdomens in females were observed in all exposure groups. Notably, a defect of the lower jaw also was observed in four male fish: two at 37 µg/L, and the others at 78 µg/L of DCF...
June 21, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28634275/female-fertility-no-bed-of-ros-es
#13
(no author information available yet)
No abstract text is available yet for this article.
June 15, 2017: Development
https://www.readbyqxmd.com/read/28634068/investigation-of-changes-in-endocannabinoids-and-n-acylethanolamides-in-biofluids-and-their-correlations-with-female-infertility
#14
Jun Ding, Xiao-Tong Luo, Yan-Ru Yao, Hua-Ming Xiao, Ming-Quan Guo
Female infertility is a worldwide medical problem, and the scarcity of infertility biomarkers has hindered the ability to launch preventive and therapeutic measures in a timely manner. Intriguingly, alterations in endocannabinoids (eCBs) and N-acylethanolamides (NAEs) have been observed in the biofluids of infertile females. Therefore, a hypothesis of using eCB and NAEs in biofluids as infertility biomarkers was proposed by several researchers; however, little evidence exists to verify the hypothesis. To investigate their correlations with female infertility, we developed a magnetic liquid microextraction-chemical derivatization (MLME-CD) method coupled with liquid chromatography-tandem mass spectrometry for the quantification of eCBs and NAEs in biofluids...
June 12, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28633287/genetic-diseases-and-aneuploidies-can-be-detected-with-a-single-blastocyst-biopsy-a-successful-clinical-approach
#15
Maria Giulia Minasi, Francesco Fiorentino, Alessandra Ruberti, Anil Biricik, Elisabetta Cursio, Ettore Cotroneo, Maria Teresa Varricchio, Matteo Surdo, Francesca Spinella, Ermanno Greco
STUDY QUESTION: Can simultaneous detection of aneuploidies and genetic diseases or chromosomal aberrations in blastocysts reduce the chance of transferring embryos with low implantation potential, guaranteeing good clinical outcomes? SUMMARY ANSWER: The screening for chromosomal aneuploidies revealed that 50.6% of blastocysts diagnosed free of genetic disease or balanced, were aneuploid, therefore avoiding the transfer of blastocysts potentially resulting in implantation failures, miscarriages, or in some cases, in health affected live births...
June 12, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28631836/medaka-extended-one-generation-reproduction-test-meogrt-evaluating-4-nonylphenol
#16
Haruna Watanabe, Yoshifumi Horie, Hitomi Takanobu, Masaaki Koshio, Taisen Iguchi, Norihisa Tatarazako
The Medaka Extended One-Generation Test (MEOGRT) was developed as a multi-generational toxicity test for chemicals, particularly endocrine disrupting chemicals. Briefly, 3 generations of Japanese medaka (Oryzias latipes) are exposed to a chemical over a 20-week period: 3-week in the parental generation (F0), 15-week in the first generation (F1), and 2-week in the second generation (F2). The present study reports the first MEOGRT results concerning branched isomer mixtures of 4-nonylphenol (NP). Adult F0 medaka exposed to NP at 5 actual concentrations (1...
June 20, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28631588/spawning-performance-of-clarias-gariepinus-burchell-1822-induced-with-ethanol-preserved-and-fresh-catfish-pituitary-extract
#17
V T Okomoda, L O Tiamiyu, D Kwaghger
This study was conducted to determine the efficacy of preserved and fresh pituitary extract of Clarias gariepinus (Burchell, 1822) to induced spawning in the same species. Growth performance of fry was also monitored for 15 days to determine the possible effect of natural hormone treatment on the fry. Pituitary glands (PG) were obtained from 12 male broodstocks, six extracted PG were preserved in 96% ethanol 24 h before injection, while the other were extracted and used in their fresh state. The PG solutions (1 g ml-1 of saline water) were injected at 1 ml kg-1 of the female broodstock...
June 20, 2017: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/28631552/effect-of-2-3-4-4-5-pentachlorobiphenyl-exposure-on-endometrial-receptivity-and-the-methylation-of-hoxa10
#18
Xin-Lan Qu, Ming-Zhang, Yuan-Fang, Hui Wang, Yuan-Zhen Zhang
Polychlorinated biphenyls (PCBs) are one of the most common endocrine-disrupting chemicals and have obvious toxicity on human reproductive development. The aim of our study was to investigate the toxicity of chronic 2,3',4,4',5-pentachlorobiphenyl (PCB 118) exposure on embryo implantation and endometrial receptivity, with the possible mechanism of DNA methylation involved. Virgin CD-1 female mice (3 weeks old) were housed and orally treated with PCB 118 (0, 1, 10, 100 μg/kg) for a month. After mating with fertile males, the pregnant mice were killed on gestation day 4...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28629791/inositol-phosphate-signaling-as-mediator-for-growth-and-sexual-reproduction-in-podospora-anserina
#19
Ning Xie, Gwenaël Ruprich-Robert, Florence Chapeland-Leclerc, Evelyne Coppin, Hervé Lalucque, Sylvain Brun, Robert Debuchy, Philippe Silar
The molecular pathways involved in the development of multicellular fruiting bodies in fungi are still not well known. Especially, the interplay between the mycelium, the female tissues and the zygotic tissues of the fruiting bodies is poorly documented. Here, we describe PM154, a new strain of the model ascomycetes Podospora anserina able to mate with itself and that enabled the easy recovery of new mutants affected in fruiting body development. By complete genome sequencing of spod1, one of the new mutants, we identified an inositol phosphate polykinase gene as essential, especially for fruiting body development...
June 16, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28629181/knockout-of-murine-mamld1-impairs-testicular-growth-and-daily-sperm-production-but-permits-normal-postnatal-androgen-production-and-fertility
#20
Mami Miyado, Kaoru Yoshida, Kenji Miyado, Momori Katsumi, Kazuki Saito, Shigeru Nakamura, Tsutomu Ogata, Maki Fukami
MAMLD1 has been implicated in testicular function in both human and mouse fetuses. Although three patients with MAMLD1 mutations were reported to have hypergonadotropic hypogonadism in their teens, the functional significance of MAMLD1 in the postnatal testis remains unclear. Here, we analyzed the phenotype of Mamld1 knockout (KO) male mice at reproductive ages. The reproductive organs of KO male mice were morphologically unremarkable, except for relatively small testes. Seminiferous tubule size and number of proliferating spermatogonia/spermatocytes were reduced in the KO testis...
June 19, 2017: International Journal of Molecular Sciences
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