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https://www.readbyqxmd.com/read/29684747/the-possible-dna-damage-induced-by-environmental-organic-compounds-the-case-of-nonylphenol
#1
REVIEW
Zahra Noorimotlagh, Seyyed Abbas Mirzaee, Mehdi Ahmadi, Neemat Jaafarzadeh, Fakher Rahim
Human impact on the environment leads to the release of many pollutants that produce artificial compounds, which can have harmful effects on the body's endocrine system; these are known as endocrine disruptors (EDs). Nonylphenol (NP) is a chemical compound with a nonyl group that is attached to a phenol ring. NP-induced H2 AX is a sensitive genotoxic biomarker for detecting possible DNA damage; it also causes male infertility and carcinogenesis. We attempt to comprehensively review all the available evidence about the different ways with descriptive mechanisms for explaining the possible DNA damage that is induced by NP...
April 20, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29684482/two-cases-of-complex-balanced-autosomal-translocations-associated-with-severe-oligozoospermia
#2
Yan-Wei Sha, Li-Bin Mei, Zhi-Yong Ji, Lu Ding, Yunsheng Ge, Qiong Wu, Hui Kong, Zhi-Ying Su, Ping Li
Complex balanced autosomal translocation is rare and can lead to impaired spermatogenesis in males; however, its effects on oligozoospermia have rarely been reported. We report here two cases of rare complex balanced translocation in men with infertility. The karyotype of the first case was 46,XY,der(1)t(1;12)(p22;p11.2)ins(9;1)(p24;q25q23),der(9)ins(9;1),der(12)t(1;12)·ish der(1)t(1;12)(RP11-636B1+;RP11-659D23+)ins(9;1)(RP11-118P13+),der(9)ins(9;1),der(12)t(1;12). And the patient showed severe oligozoospermia with adult schizophrenia without other abnormalities...
April 20, 2018: Gene
https://www.readbyqxmd.com/read/29684161/impact-of-heat-stress-during-the-follicular-phase-on-porcine-ovarian-steroidogenic-and-phosphatidylinositol-3-signaling
#3
M J Dickson, C L Hager, A Al-Shaibi, P Q Thomas, L H Baumgard, J W Ross, A F Keating
Environmental conditions that impede heat dissipation and increase body temperature cause heat stress (HS). The study objective was to evaluate impacts of HS on the follicular phase of the estrous cycle. Post-pubertal gilts (126.0 ± 21.6 kg) were orally administered altrenogest to synchronize estrus, and subjected to either 5 d of thermal neutral (TN; 20.3 ± 0.5°C; n = 6) or cyclical HS (25.4 - 31.9°C; n = 6) conditions during the follicular phase preceding behavioral estrus. On d 5, blood samples were obtained, gilts were euthanized, and ovaries collected...
April 19, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29683243/protective-effects-of-camel-whey-protein-against-scrotal-heat-mediated-damage-and-infertility-in-the-mouse-testis-through-yap-nrf2-and-ppar-gamma-signaling-pathways
#4
Gamal Badr, Hanem S Abdel-Tawab, Nancy K Ramadan, Samia F Ahmed, Mohamed H Mahmoud
Elevation of scrotal temperature is one of the most important causes of impaired spermatogenesis and male infertility, but the exact mechanism remains controversial. The present study investigated the impact of camel whey protein (CWP) on the mechanisms of heat stress (HS)-mediated testicular damage in male mice. Exposure to HS was associated with significant increase in the testicular tissues' oxidative stress. Mechanistically, exposure to HS resulted in upregulation of P53 and Nrf2 expressions; downregulation of Bcl2 and PPAR-γ expressions; and induction of testicular Leydig cell hyperplasia...
April 23, 2018: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/29682638/resveratrol-reverses-the-adverse-effects-of-a-diet-induced-obese-murine-model-on-oocyte-quality-and-zona-pellucida-softening
#5
Zhenzhen Jia, Zeyang Feng, Lining Wang, Hao Li, Hongyu Wang, Dingqi Xu, Xin Zhao, Daofu Feng, Xizeng Feng
Reproductive dysfunction associated with obesity is increasing among women of reproductive age, including infertility and increasing risk of miscarriage. In females, reproductive disorders are linked to declining quality of oocytes. Using a model of diet-induced obesity, we have investigated the possible effects of obesity on oocyte quality, including metabolism, lipid accumulation, ROS levels, meiosis and changes in spindle structure in Metaphase II. Our study showed that obesity induced by a high fat diet can impair oocyte meiosis, destroy spindle assembly, and promote oxidative stress and abnormal mitochondrial distribution...
April 23, 2018: Food & Function
https://www.readbyqxmd.com/read/29682321/use-of-biomedical-photonics-in-gynecological-surgery-a-uterine-transplantation-model
#6
Srdjan Saso, Neil T Clancy, Benjamin P Jones, Timothy Bracewell-Milnes, Maya Al-Memar, Eleanor M Cannon, Simran Ahluwalia, Joseph Yazbek, Meen-Yau Thum, Tom Bourne, Daniel S Elson, James Richard Smith, Sadaf Ghaem-Maghami
Aim: Uterine transplantation (UTx) has been proposed as a treatment for permanent absolute uterine factor infertility. The study aims were to compare pulse oximetry and multispectral imaging (MSI), for intraoperative tracking of uterine oxygen saturation in animal UTx models (rabbit and sheep). Results/methodology: Imaging results confirmed the re-establishment of adequate perfusion in the transplanted organ after surgery. Comparison of oxygen saturation   values between the pre-UTx donor and post-UTx recipient, and pre-UTx and post-UTx recipient reveals a statistically significant decrease in saturation levels post-UTx...
April 2018: Future Science OA
https://www.readbyqxmd.com/read/29682163/increased-f-2-isoprostane-levels-in-semen-and-immunolocalization-of-the-8-iso-prostaglandin-f-2-%C3%AE-in-spermatozoa-from-infertile-patients-with-varicocele
#7
Giulia Collodel, Elena Moretti, Mariangela Longini, Nicola Antonio Pascarelli, Cinzia Signorini
Polyunsaturated fatty acid damages lead to alterations in sperm function. This study aimed to investigate the involvement of F2 -isoprostanes (F2 -IsoPs), oxidized lipid products from arachidonic acid, in sperm quality impairment. For this purpose, F2 -IsoP levels in semen and F2 -IsoP localization in spermatozoa were explored in infertile subjects affected by idiopathic infertility or varicocele, as well as in fertile men. As compared to fertile men, in the idiopathic infertility and varicocele groups, sperm concentration, motility, morphology, viability, and fertility index were significantly lower and the mean scores concerning sperm apoptosis, necrosis, and immaturity were significantly higher...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29682150/positive-effect-of-acupuncture-and-cupping-in-infertility-treatment
#8
Jun-Xiang Wang, Yang Yang, Yue Song, Liang-Xiao Ma
Background: Infertility is clinically defined as the failure to conceive after 12 months of unprotected sexual intercourse. Organic disorders and lifestyle factors are highly associated with infertility. Generally, acupuncture and its related methods can be applied for treating infertility, according to the theory of Traditional Chinese Medicine. Successful cases of acupuncture-treated infertility without concomitant use of any medication are rare. This article presents a case of an infertile woman having a favorable response to acupuncture treatment...
April 1, 2018: Medical Acupuncture
https://www.readbyqxmd.com/read/29681721/progesterone-hypersensitivity-a-challenge-for-luteal-support
#9
Astha Gupta, Deepak Goenka, Mohan L Goenka
Progesterone hypersensitivity is a rare phenomenon which can occur after both endogenous and exogenous exposures. We present a case of hypersensitivity to various forms and routes of exogenous progesterone. A 27-year-old female presented with primary infertility. Investigations revealed Grade 1 endometriosis and polycystic ovary syndrome. Three cycles of intrauterine insemination were attempted which were unsuccessful and in vitro fertilization was proceeded. Six blastocysts of Grade A were formed and cryopreserved...
January 2018: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/29681720/live-birth-after-rescue-in-vitro-maturation-intracytoplasmic-sperm-injection-in-type-1-diabetes-polycystic-ovary-syndrome-patient-using-clomiphene-antagonist-protocol
#10
Samundi Sankari, M Elanchezhian, Divya Selvamani, M Nagarajan, D Gopikrishnan
Infertility in patients with polycystic ovary syndrome (PCOS) associated with diabetes leads to challenging situations seeking alternative treatments. In vitro maturation (IVM) followed by intracytoplasmic sperm injection (ICSI) could overcome the challenges with promising pregnancies in such patients. In the treatment of a 32-year-old diabetic woman who also had PCOS, single immature oocyte was retrieved. Rescue IVM followed by ICSI yielded a grade 1 day 3 embryo which on transferring resulted in pregnancy and a healthy infant was delivered...
January 2018: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/29681718/therapeutic-efficacy-of-endometrial-scratching-in-repeated-controlled-ovarian-stimulation-cos-failure-cycles
#11
Leena Wadhwa, Mona Mishra
Objective: The objective of the study was (1) "to evaluate the therapeutic efficacy of endometrial scratching in repeated controlled ovarian stimulation (COS) failure cycles." And (2) "to compare differences in pregnancy outcome by endometrial scratching in early (D2-D4) and late follicular phases (D7-D9) of the same stimulation cycle." Materials and Methods: Women attending infertility clinic in a tertiary care center and who have two or more repeated COS failure cycles and planned for COS with intrauterine insemination (IUI) were included in the study which is a prospective parallel, interventional, single-blinded, randomized control study, in 1:1 allocation ratio...
January 2018: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/29681717/luteinizing-hormone-receptor-gene-and-regulator-of-g-protein-signaling-2-gene-expression-level-and-association-with-oocyte-maturity-in-in-vitro-fertilization-intracytoplasmic-sperm-injection-cycle
#12
Thanik Chokjirawat, Mutchuporn Sukpresert, Wicharn Choktanasiri, Wanwisa Waiyaput, Duangporn Saengwimol, Aruchalean Taweewongsounton, Tanjitti Pongrujikorn, Chonthicha Satirapod
Aims: The aim is to study the relation and distribution in gene expression level of the luteinizing hormone receptor (LHR) gene and regulator of G-protein signaling 2 (RGS2) gene expression with oocyte maturation. Setting and Design: This cross-sectional study was undertaken in an instruction-based tertiary care infertility unit, department of obstetrics and gynecology. Materials and Methods: After controlled ovarian hyperstimulation, cumulus granulosa cells (CCs) from 59 oocytes among 18 women being treated by in vitro fertilization/intracytoplasmic sperm injection cycle technique from November 2015 to January 2016 were collected on the day of oocyte retrieval...
January 2018: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/29681715/can-intracytoplasmic-morphologically-selected-spermatozoa-injection-be-used-as-first-choice-of-treatment-for-severe-male-factor-infertility-patients
#13
Geeta Goswami, Meeta Sharma, Deepika Jugga, Devi M Gouri
Aim: This study was carried out to assess the outcome of the intracytoplasmic morphologically selected sperm injection (IMSI) technique compared with the previous failed intracytoplasmic sperm injection (ICSI) attempts in oligoasthenoteratozoospermia (OAT)/severe OAT (SOAT)/teratozoospermia patients. Setting: Institution-based, in vitro fertilization center. Study Design: It was a nonrandomized prospective study including 57 couples who had previous one or two ICSI failures (failure due to no implantation as embryos were transferred in these cycles and had no pregnancy) due to male factor...
January 2018: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/29681714/tamoxifen-is-better-than-low-dose-clomiphene-or-gonadotropins-in-women-with-thin-endometrium-7-mm-after-clomiphene-in-intrauterine-insemination-cycles-a-prospective-study
#14
Sunita Sharma, Geetha Rani, Gunja Bose, Indranil Saha, Sikha Bathwal, B N Chakravarty
Aim: Gonadotropin stimulation is used as the second line of treatment in patients with thin endometrium following clomiphene citrate (CC) administration, which is associated with higher cost, multiple births, and ovarian hyperstimulation syndrome. Tamoxifen (TMX), a selective estrogen receptor modulator, acts as an agonist on the endometrium. The objective of the present study was to compare the efficacy of low-dose CC, TMX, and gonadotropins in women with thin endometrium (<7 mm) following Clomiphene in intrauterine insemination (IUI) cycles...
January 2018: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/29681711/diagnostic-hysterolaparoscopy-for-evaluation-of-infertility-our-experience-in-a-tertiary-care-hospital
#15
Sairem Mangolnganbi Chanu, Gouri Sankar Rudra Pal, Subrat Panda, A S Santa Singh
Objective: The objective of this study is to analyze the role of diagnostic hysterolaparoscopy (DHL) for evaluation of infertility in a tertiary care hospital. Materials and Methods: This retrospective study was conducted from July 2014 to June 2016. Results: Out of 151 patients, 58.28% and 41.72% had primary and secondary infertility, respectively. In primary infertility group 37.5% and in secondary infertility group 49.2% had abnormal findings...
January 2018: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/29681542/dna-methylation-and-regulatory-elements-during-chicken-germline-stem-cell-differentiation
#16
Yanghua He, Qisheng Zuo, John Edwards, Keji Zhao, Jinzhi Lei, Wentao Cai, Qing Nie, Bichun Li, Jiuzhou Song
The production of germ cells in vitro would open important new avenues for stem biology and human medicine, but the mechanisms of germ cell differentiation are not well understood. The chicken, as a great model for embryology and development, was used in this study to help us explore its regulatory mechanisms. In this study, we reported a comprehensive genome-wide DNA methylation landscape in chicken germ cells, and transcriptomic dynamics was also presented. By uncovering DNA methylation patterns on individual genes, some genes accurately modulated by DNA methylation were found to be associated with cancers and virus infection, e...
April 17, 2018: Stem Cell Reports
https://www.readbyqxmd.com/read/29681013/the-effects-of-an-educational-program-for-non-physician-health-care-providers-regarding-fertility-preservation
#17
Emi Takeuchi, Masashi Kato, Kayoko Miyata, Nao Suzuki, Chikako Shimizu, Hiroshi Okada, Naoko Matsunaga, Mariko Shimizu, Natsuko Moroi, Daisuke Fujisawa, Masaru Mimura, Yoko Miyoshi
PURPOSE: The American Society of Clinical Oncology (ASCO) Clinical Practice guidelines recommend that physicians, nurses, social workers, and other health care providers should be prepared to discuss the risk of infertility with patients. We conducted an educational program for non-physician health care providers regarding fertility preservation and evaluated the effects of the educational program. METHODS: The 4-h educational program consisted of lectures about infertility as a potential risk of cancer treatment, fertility preservation, and psychosocial support...
April 21, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29680465/treatment-strategies-and-cumulative-live-birth-rates-in-who-ii-ovulation-disorders
#18
Sanne C Braam, Jan Peter de Bruin, Erato T I A Buisman, Monique Brandes, Willianne L D M Nelen, Jesper M J Smeenk, Jan Willem van der Steeg, Ben Willem J Mol, Carl J C M Hamilton
OBJECTIVE: To assess the live birth rate in women with WHO II anovulation and the proportion of women that need second or third line treatments if the initial therapy fails. STUDY DESIGN: In this multicenter cohort study we included couples with unfulfilled child wish who were referred to three fertility clinics in the Netherlands and selected women with a WHO II ovulation disorder as the only final infertility diagnosis (n = 468). RESULTS: The cumulative live birth rate of the total group was 82% (383/468)...
April 10, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29680294/klinefelter-syndrome-the-effects-of-early-androgen-therapy-on-competence-and-behavioral-phenotype
#19
REVIEW
Ryan Flannigan, Premal Patel, Darius A Paduch
INTRODUCTION: Klinefelter syndrome (KS) is the result of sex chromosome aneuploidy most often characterized as 47,XXY. The typical features of KS include tall stature, gynecomastia, small firm testicles, hypergonadotropic hypogonadism, and infertility. However, abnormalities in neurodevelopment, cognition, and social and behavioral functioning also can be present. The abnormalities in neurodevelopment are believed to be due in part to androgen deficiency during early development and puberty...
April 18, 2018: Sexual Medicine Reviews
https://www.readbyqxmd.com/read/29679980/parental-genetic-material-and-oxygen-concentration-affect-hatch-dynamics-of-mouse-embryo-in-vitro
#20
Shaoquan Zhan, Shanbo Cao, Hongzi Du, Yuan Sun, Li Li, Chenhui Ding, Haiyan Zheng, Junjiu Huang
BACKGROUND: Hatching is crucial for mammalian embryo implantation, since difficulties during this process can lead to implantation failure, ectopic pregnancy and consequent infertility. Despite years of intensive researches, how internal and external factors affecting embryo hatch are still largely unclear. METHODS: The effects of parental genetic material and oxygen concentration on hatch process were examined. Fertilized and parthenogenetic mouse preimplantation embryos were cultured in vitro under 5 and 20% oxygen for 120 h...
April 21, 2018: Reproductive Biology and Endocrinology: RB&E
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