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https://www.readbyqxmd.com/read/28230092/rtfc-4931414p19rik-regulates-in-vitro-thyroid-differentiation-and-in-vivo-thyroid-function
#1
Yang Yu, Chang Liu, Junxia Zhang, Mimi Zhang, Wei Wen, Xianhui Ruan, Dapeng Li, Shuang Zhang, Ming Gao, Lingyi Chen
Thyroid is a one of the most important endocrine organs. Understanding the molecular mechanism underlying thyroid development and function, as well as thyroid diseases, is beneficial for the clinical treatment of thyroid diseases and tumors. Through genetic linkage analysis and exome sequencing, we previously identified an uncharacterized gene C14orf93 (RTFC, mouse homolog: 4931414P19Rik) as a novel susceptibility gene for familial non-medullary thyroid carcinoma, and demonstrated its function in promoting thyroid tumor...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28229974/molecular-mechanism-of-endosulfan-action-in-mammals
#2
Robin Sebastian, Sathees C Raghavan
Endosulfan is a broad-spectrum organochlorine pesticide, speculated to be detrimental to human health in areas of active exposure. However, the molecular insights to its mechanism of action remain poorly understood. In two recent studies, our group investigated the physiological and molecular aspects of endosulfan action using in vitro, ex vivo and in vivo analyses. The results showed that apart from reducing fertility levels in male animals, Endosulfan induced DNA damage that triggers compromised DNA damage response leading to undesirable processing of broken DNA ends...
March 2017: Journal of Biosciences
https://www.readbyqxmd.com/read/28229966/extra-oviductal-expression-of-oviductal-glycoprotein-1-in-mouse-detection-in-testis-epididymis-and-ovary
#3
Saniya Laheri, Deepak Modi, Purvi Bhatt
Oviductal glycoprotein 1 (OVGP1), also called oviductin, is an oviduct-specific protein and is suggested to play a role in fertilization. Traditionally, Ovgp1 has been shown to be exclusively expressed by the oviduct; however, recent studies have demonstrated its expression in some cancers. This observation led us to hypothesize that Ovgp1 might have some extra-oviductal expression. In the current study, we evaluated the mRNA and protein expression of Ovgp1 in normal reproductive tissues of male and female mice...
March 2017: Journal of Biosciences
https://www.readbyqxmd.com/read/28228092/variation-in-rates-of-spontaneous-male-production-within-the-nematode-species-pristionchus-pacificus-supports-an-adaptive-role-for-males-and-outcrossing
#4
Katy Morgan, Angela McGaughran, Christian Rödelsperger, Ralf J Sommer
BACKGROUND: The nematode species Pristionchus pacificus has an androdioecious mating system in which populations consist of self-fertilizing hermaphrodites and relatively few males. The prevalence of males in such a system is likely to depend on the relative pros and cons of outcrossing. While outcrossing generates novel allelic combinations and can therefore increase adaptive potential, it may also disrupt the potentially beneficial consequences of repeated generations of selfing. These include purging of deleterious alleles, inheritance of co-adapted allele complexes, improved hermaphrodite fitness and increased population growth...
February 23, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28226241/catsper%C3%AE-regulates-the-structural-continuity-of-sperm-ca-2-signaling-domains-and-is-required-for-normal-fertility
#5
Jean-Ju Chung, Kiyoshi Miki, Doory Kim, Sang-Hee Shim, Huanan F Shi, Jae Yeon Hwang, Xinjiang Cai, Yusuf Iseri, Xiaowei Zhuang, David E Clapham
We report that the Gm7068 (CatSperε) and Tex40 (CatSperζ) genes encode novel subunits of a 9-subunit CatSper ion channel complex. Targeted disruption of CatSperζ reduces CatSper current and sperm rheotactic efficiency in mice, resulting in severe male subfertility. Normally distributed in linear quadrilateral nanodomains along the flagellum, the complex lacking CatSperζ is disrupted at ~0.8 μm intervals along the flagellum. This disruption renders the proximal flagellum inflexible and alters the 3D flagellar envelope, thus preventing sperm from reorienting against fluid flow in vitro and efficiently migrating in vivo...
February 22, 2017: ELife
https://www.readbyqxmd.com/read/28225103/beneficial-effects-of-lycium-barbarum-polysaccharide-on-spermatogenesis-by-improving-antioxidant-activity-and-inhibiting-apoptosis-in-streptozotocin-induced-diabetic-male-mice
#6
Guang-Jiang Shi, Jie Zheng, Jing Wu, Hai-Qi Qiao, Qing Chang, Yang Niu, Tao Sun, Yu-Xiang Li, Jian-Qiang Yu
Spermatogenic dysfunction is one of the major secondary complications of diabetes. L. barbarum polysaccharide (LBP) has long been considered to possess anti-apoptotic activities and antioxidant, anti-inflammatory and fertility-enhancing properties in traditional medical practices in China. The aim of the current study was to seek out scientific evidence to determine if LBP also contributes to the recovery from spermatogenic dysfunction in diabetic individuals. We investigated whether the oral administration of LBP in streptozotocin (STZ)-induced type-1 diabetic male mice would reverse spermatogenic dysfunction and improve histological damage in testes...
February 22, 2017: Food & Function
https://www.readbyqxmd.com/read/28224638/assessment-of-human-sperm-dna-integrity-using-two-cytochemical-tests-acridine-orange-test-and-toluidine-blue-assay
#7
T Ajina, O Ammar, Z Haouas, A Sallem, L Ezzi, I Grissa, W Sakly, A Jlali, M Mehdi
Primary infertility affects approximately 15% of couples, with male factor infertility accounting for 50% of cases. Semen samples from 41 patients with asthenoteratospermia and 28 men with proven fertility were analysed according to World Health Organization guidelines. Abnormal sperm chromatin structure was assessed by toluidine blue assay (TBA), and DNA denaturation (DD) was detected by the acridine orange test (AOT). The mean (±SEM) rates of DD and abnormal chromatin structure were significantly higher in infertile subjects compared to fertile group respectively p = ...
February 22, 2017: Andrologia
https://www.readbyqxmd.com/read/28224403/association-of-follicle-stimulating-hormone-receptor-single-nucleotide-polymorphisms-with-fertility-in-greek-men
#8
D Tsitlakidis, T Katopodi, D G Goulis, I Papadimas, A Kritis
BACKGROUND AND OBJECTIVE: Although several epidemiological studies have been conducted, the impact of follicle-stimulating hormone receptor (FSHR) polymorphisms on male infertility remains unclear. The aim of this study was to investigate the prevalence of specific FSHR single nucleotide polymorphisms (SNPs) in the Greek population and associate the latter with the clinical phenotype. PATIENTS AND METHODS: We enrolled 96 subjects: men with idiopathic non-obstructive azoospermia (n = 78) were compared with a control group of fertile men (n = 18) for SNPs in FSHR positions c...
February 21, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28223035/effects-of-quinestrol-on-the-vocal-behavior-of-mice-during-courtship-interactions
#9
Yi Chen, Qianqian Su, Quansheng Liu
Vocalizations are a crucial part of courtship and mating in a wide variety of species. Mating behavior, including courtship calls, is modulated by sex steroid hormones. Male mice produce courtship ultrasonic vocalizations to attract females during heterosexual encounters. However, rare is the knowledge on whether vocal behavior of mice changes under sterilant treatment which will affect gonadal hormone levels. In the present study, we treat male mice with quinestrol, which interferes with the release of the gonadotropin-releasing hormone (GnRH) and has a significant anti-fertility effect in rodents...
February 18, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28222376/effects-of-4-nonylphenol-in-drinking-water-on-the-reproductive-capacity-of-japanese-quails-coturnix-japonica
#10
Yan Cheng, Zhengjun Shan, Junying Zhou, Yuanqing Bu, Pengfu Li, Shan Lu
4-nonylphenol (4-NP), a major degradation product of Nonylphenol ethoxylates (NPEOs), is widespread in environment. In this study, the effects of long-term 4-NP exposure in drinking water on Japanese quails (Coturnix japonica) were investigated. A total of 45 quails were evenly divided into 15 groups and administrated with various doses (0.1 μg L(-1), 1.0 μg L(-1), 10 μg L(-1) and 100 μg L(-1), which reflected the environmental concentrations of 4-NP) of 4-NP in drinking water. The results showed that 4-NP in drinking water had no effect on quails' food intake, but significantly decreased the quails' body weights (P < 0...
February 8, 2017: Chemosphere
https://www.readbyqxmd.com/read/28221816/priorities-in-fertility-decisions-for-reproductive-aged-cancer-patients-fertility-attitudes-and-cancer-treatment-study
#11
Dina M Flink, Laxmi A Kondapalli, Yvonne Kellar-Guenther
PURPOSE: The Fertility Attitudes and Cancer Treatment Study (FACTS) aims at better understanding the reasons and priorities of young adult cancer patients making decisions for fertility preservation (FP). Identifying the factors that center around a patient's fertility decisions will support the development of educational tools for providers and improve clinical care to meet patients' reproductive needs. METHODS: An exploratory qualitative study was conducted of 27 newly diagnosed male and female cancer patients who had presented for an oncofertility consultation...
February 21, 2017: Journal of Adolescent and Young Adult Oncology
https://www.readbyqxmd.com/read/28219475/effects-of-in-ovo-feeding-of-creatine-pyruvate-on-the-hatchability-growth-performance-and-energy-status-in-embryos-and-broiler-chickens
#12
M M Zhao, T Gao, L Zhang, J L Li, P A Lv, L L Yu, F Gao, G H Zhou
The effects of in ovo feeding (IOF) of creatine pyruvate (CrPyr) on the hatchability, growth performance and energy status of embryos and broilers (Arbor Acres) were investigated. Five treatments were arranged as non-injected treatment (Control), 0.6 ml physiological saline (0.75%) injected treatment (Saline), and IOF treatments injected with 0.6 ml physiological saline (0.75%) containing 3, 6 or 12 mg CrPyr (CrPyr3, CrPyr6 or CrPyr12) into the amnion per fertile egg on day 17.5 of incubation. After hatching, 80 male chicks from each treatment with similar weight close to the average BW of their pooled group were selected and randomly assigned into eight replicates of 10 chicks each...
February 21, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28217948/shrna-mediated-ablation-of-prostate-and-testis-expressed-pate-messenger-rna-results-in-impaired-sperm-function-and-fertility
#13
A Rajesh, S Yenugu
Spermatogenesis and sperm maturation are complex processes mediated by a variety of proteins present in the testicular and epididymal mileu. In the recent years, functional characterization of these proteins is being studied by genetic manipulations that involve targeted over expression or knock down of specific genes. In this study, we adopted FuGENE 6-based in vivo transfection of rat cauda epididymis with pGFP-V-RS plasmid that encodes shRNA to knock down Pate mRNA levels to implicate a possible role for this gene in sperm function...
February 19, 2017: Andrology
https://www.readbyqxmd.com/read/28216909/aneuploidy-screening-by-array-comparative-genomic-hybridization-improves-success-rates-of-in-vitro-fertilization-a-multicenter-indian-study
#14
Aditi Kotdawala, Deven Patel, Javier Herrero, Rajni Khajuria, Nalini Mahajan, Manish Banker
OBJECTIVE: To evaluate the usefulness of preimplantation genetic screening (PGS) using array comparative genomic hybridization (aCGH) in the Indian population. MATERIALS AND METHODS: This is a retrospective, multicenter study including 235 PGS cycles following intracytoplasmic sperm injection performed at six different infertility centers from September 2013 to June 2015. Patients were divided as per maternal age in several groups (<35, 35-36, 37-38, 39-40, and >40 years) and as per indication for undergoing PGS...
October 2016: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/28216339/the-effect-of-tribulus-terrestris-extract-on-motility-and-viability-of-human-sperms-after-cryopreservation
#15
Atefeh Asadmobini, Mitra Bakhtiari, Sara Khaleghi, Farzaneh Esmaeili, Ali Mostafaei
BACKGROUND: Semen cryopreservation produces significant amounts of reactive oxygen species (ROS), which may lead to impairment of sperm morphology, function, and ultimately, male fertility. Since Tribulus terrestris has antioxidant and free-radical-scavenging properties, this study aims to reveal the effect of the Tribulus terrestris extract on motility and vitality of human sperms after cryopreservation. MATERIALS AND METHODS: Semen specimens from 80 healthy volunteers were divided into eight groups: fresh control (group I), freeze control (group II), groups III, IV, and V, which had 20, 40, and 50 μg/mL doses of Tribulus terrestris extract added before cryopreservation, and groups VI, VII, and VIII, which were supplemented by these extract doses after the freeze-thaw process...
February 17, 2017: Cryobiology
https://www.readbyqxmd.com/read/28209763/revisiting-suppression-of-interspecies-hybrid-male-lethality-in-caenorhabditis-nematodes
#16
Lauren E Ryan, Eric S Haag
Within the nematode genus Caenorhabditis, C. briggsae and C. nigoni are among the most closely related species known. They differ in sexual mode, with C. nigoni retaining the ancestral XO male-XX female outcrossing system, while C. briggsae recently evolved self-fertility and an XX-biased sex ratio. Wild-type C. briggsae and C. nigoni can produce fertile hybrid XX female progeny, but XO progeny are either 100% inviable (when C. briggsae is the mother) or viable but sterile (when C. nigoni is the mother). A recent study provided evidence suggesting that loss of the Cbr-him-8 meiotic regulator in C...
February 16, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28209492/reproductive-considerations-in-the-setting-of-chronic-viral-illness
#17
REVIEW
Brent M Hanson, Jessie A Dorais
Special considerations must be taken when patients with human immunodeficiency virus (HIV), Hepatitis B, or Hepatitis C desire to achieve pregnancy. Patients with chronic viral illnesses desire children at rates similar to the general population, and options are available to decrease both vertical transmission and viral transmission between partners. Preconception counseling or consultation with fertility specialists is imperative in patients with HIV, Hepatitis B, and Hepatitis C so that reproductive goals can be addressed and optimized...
February 13, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28205391/influence-of-iodine-in-excess-on-seminiferous-tubular-structure-and-epididymal-sperm-character-in-male-rats
#18
Amar K Chandra, Arijit Chakraborty
Excess iodine induced public health problems are now emerging in many iodine sufficient regions for indiscriminate intake of iodine through various iodized products. It has been reported that excess iodine can disrupt overall male reproductive physiology by generating oxidative stress in the testis. However, information on the possible effect of iodine in excess on spermatozoa found less. In the present investigation flow cytometric techniques and scanning electron microscopy (SEM) have been used to study the spermatozoal functional as well as structural status under the influence of excess iodine; generation of ROS in the spermatozoa as evident by DCFDA, altered acrosomal integrity as observed by fluorescence lectin staining method and depolarized mitochondrial membrane potential (ΔΨm ) noticed by JC-1 staining...
February 16, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28202187/male-factor-infertility-and-lack-of-openness-about-infertility-as-risk-factors-for-depressive-symptoms-in-males-undergoing-assisted-reproductive-technology-treatment%C3%A2-in-italy
#19
Alessandra Babore, Liborio Stuppia, Carmen Trumello, Carla Candelori, Ivana Antonucci
OBJECTIVE: To investigate the association between male factor infertility and openness to discussing assisted reproductive technology (ART) treatment with levels of depression among men undergoing infertility treatment. DESIGN: Cross-sectional. SETTING: Not applicable. PATIENT(S): Three hundred forty participants (170 men and their partners) undergoing ART treatments. INTERVENTION(S): Administration of a set of questionnaires...
February 12, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28199189/presence-of-psa-antibodies-in-seminal-plasma-of-infertile-men
#20
Vanessa A Cuppett, Suresh C Sikka, Rajesh K Naz
Immunoinfertility due to antisperm antibodies and semen hyperviscosity are among major causes of male infertility. Although the modulation of prostate-specific antigen (PSA) has been investigated in prostate abnormalities, its role and the effect of its dysfunction in male fertility/infertility have not been extensively examined. The present study was conducted to examine the presence of PSA antibodies locally in the seminal plasma of men having immunoinfertility and semen hyperviscosity. Seminal plasma samples from immunoinfertile men (n=25), men with hyperviscous semen (n=25), and normal men (n=24) were collected and analyzed for immunoreactivity with PSA in ELISA and Western blot...
March 1, 2017: Frontiers in Bioscience (Elite Edition)
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