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https://www.readbyqxmd.com/read/28816268/-expression-and-localization-of-transmembrane-protein-cmtm2-in-human-testis-and-sperm
#1
X W Zhang, K Lan, W B Yang, Q Li, Y P Zhao, H Q Yin, B Kite, W J Bai, T Xu
OBJECTIVE: To study the expression of transmembrane protein CMTM2 in the testis and sperm of adult males and to approach the potential function of the protein in the male reproductive system. METHODS: The expression of CMTM2 in human testis and sperm was confirmed by Western blot. Immunohistochemical staining was used for detecting CMTM2 localization in the testis tissue, TRITC-CMTM2 and FITC-Hoechst double immunofluorescence staining was performed to examine the subcellular localization of CMTM2 in the human sperm before and after acrosome reaction, that is, immunofluorescent staining was used for detecting CMTM2 localization in both the testis and sperm before and after the acrosome reaction...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28814533/dietary-selenium-deficiency-or-excess-reduces-sperm-quality-and-testicular-mrna-abundance-of-nuclear-glutathione-peroxidase-4-in-rats
#2
Ji-Chang Zhou, Shijie Zheng, Junluan Mo, Xiongshun Liang, Yuanfei Xu, Huimin Zhang, Chunmei Gong, Xiao-Li Liu, Xin Gen Lei
Background: Glutathione peroxidase (GPX) 4 and selenoprotein P (SELENOP) are abundant, and several variants are expressed in the testis.Objective: We determined the effects of dietary selenium deficiency or excess on sperm quality and expressions of GPX4 and SELENOP variants in rat testis and liver.Methods: After weaning, male Sprague-Dawley rats were fed a Se-deficient basal diet (BD) for 5 wk until they were 9 wk old [mean ± SEM body weight (BW) = 256 ± 5 g]. They were then fed the BD diet alone (deficient) or with 0...
August 16, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28814267/sex-and-tissue-specific-gene-expression-patterns-identified-following-de-novo-transcriptomic-analysis-of-the-norway-lobster-nephrops-norvegicus
#3
Guiomar Rotllant, Tuan Viet Nguyen, Valerio Sbragaglia, Lifat Rahi, Kevin J Dudley, David Hurwood, Tomer Ventura, Joan B Company, Vincent Chand, Jacopo Aguzzi, Peter B Mather
BACKGROUND: The Norway lobster, Nephrops norvegicus, is economically important in European fisheries and is a key organism in local marine ecosystems. Despite multi-faceted scientific interest in this species, our current knowledge of genetic resources in this species remains very limited. Here, we generated a reference de novo transcriptome for N. norvegicus from multiple tissues in both sexes. Bioinformatic analyses were conducted to detect transcripts that were expressed exclusively in either males or females...
August 16, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28812465/melanotic-neuroectodermal-tumor-of-infancy-presenting-with-fast-growing-scrotal-swelling-a-case-report-and-literature-review
#4
Corinthia Fabien-Dupuis, Benjamin Niver, Nick Shillingford, Larry Wang, Paul J Kokorowski, Shengmei Zhou
Testicular melanotic neuroectodermal tumor of infancy (MNTI) is extremely rare, with 2 cases reported in the literature. Its rarity and rapid and infiltrative growth pattern pose a diagnostic challenge. A previously healthy 3-month-old male, presented with a history of worsening left hemiscrotal swelling for 1 week. An outside ultrasound was suggestive of testicular torsion. Left orchiectomy demonstrated a mass occupying almost entire testicle with a variegated cut surface, with areas of pigmentation, necrosis, and hemorrhage...
September 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28812227/effects-of-fluoride-on-surface-structure-of-primary-culture-leydig-cells-in-mouse
#5
Jian Li, Yan Shi, Hua Fan, Yanyan Li, Yuchen Zhu, Xijun Lin, Jianhai Zhang
Fluoride (F) is known to induce reproduction toxicity, and the elucidation of its underlying mechanisms is an ongoing research. These findings aim to provide deeper insights into roles of soduim fluoride (NaF) in testis damage, which could contribute to a better understanding of fluoride-induced male reproductive toxicity. The Leydig cells were administrated by 0, 5, 10, and 20 mg/L NaF for 24 h, respectively. Scanning electron microscope was used to identify the change of surface structure in the Leydig cells...
August 15, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28811650/diet-induced-obesity-leads-to-metabolic-dysregulation-in-offspring-via-endoplasmic-reticulum-stress-in-a-sex-specific-manner
#6
J H Park, Y Yoo, M Cho, J Lim, A M Lindroth, Y J Park
BACKGROUND/OBJECTIVES: Exposure to metabolic stress has been suggested to influence the susceptibility to metabolic disorders in offspring according to epidemiological and animal studies. Nevertheless, molecular mechanisms remain unclear. We investigated impacts of diet-induced paternal obesity on metabolic phenotypes in offspring and its underlying molecular mechanism. SUBJECTS/METHODS: Male founder mice (F0), fed with control diet (CD) or high fat diet (HFD), were mated with CD-fed females...
August 16, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28810916/the-catsper-channel-and-its-roles-in-male-fertility-a-systematic-review
#7
REVIEW
Xiang-Hong Sun, Ying-Ying Zhu, Lin Wang, Hong-Ling Liu, Yong Ling, Zong-Li Li, Li-Bo Sun
The Catsper channel is a sperm-specific, Ca(2+)-permeable, pH-dependent, and low voltage-dependent channel that is essential for the hyperactivity of sperm flagellum, chemotaxis towards the egg, capacitation and acrosome reaction. All of these physiological events require calcium entry into sperm cells. Remarkably, Catsper genes are exclusively expressed in the testis during spermatogenesis, and are sensitive to ion channel-induced pH change, such as NHEs, Ca(2+)ATPase, K(+) channel, Hv1 channel and HCO3(-) transporters...
August 15, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28810828/suitable-reference-gene-for-quantitative-real-time-pcr-analysis-of-gene-expression-in-gonadal-tissues-of-minnow-puntius-sophore-under-high-temperature-stress
#8
Arabinda Mahanty, Gopal Krishna Purohit, Sasmita Mohanty, Nihar Ranjan Nayak, Bimal Prasanna Mohanty
BACKGROUND: High ambient temperature is known to affect fish gonadal development and physiology in a variety of ways depending on the severity and duration of exposure; however, the underlying molecular mechanisms are poorly understood. Gonadal gene expression influence the gonadal development, physiology and the quality of egg/sperm produced in teleosts and the mechanistic understanding of spatio-temporal changes in the gonadal gene expression could be instrumental in controlling the fate of egg/sperm and the quality of seed produced...
August 15, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28809158/germ-cell-connectivity-enhances-cell-death-in-response-to-dna-damage-in-the-drosophila-testis
#9
Kevin L Lu, Yukiko M Yamashita
Two broadly known characteristics of germ cells in many organisms are their development as a 'cyst' of interconnected cells and their high sensitivity to DNA damage. Here we provide evidence that in the Drosophila testis, connectivity serves as a mechanism that confers to spermatogonia a high sensitivity to DNA damage. We show that all spermatogonia within a cyst die synchronously even when only a subset of them exhibit detectable DNA damage. Mutants of the fusome, an organelle that is known to facilitate intracyst communication, compromise synchronous spermatogonial death and reduces overall germ cell death...
August 15, 2017: ELife
https://www.readbyqxmd.com/read/28809065/case-of-hydrocele-testis-caused-by-vaginalitis-a-rare-manifestation-of-immunoglobulin%C3%A2-g4-related-disease
#10
Yuumi Tokura, Minoru Kobayashi, Takashi Kusakabe, Takao Kamai
We report an extremely rare manifestation of immunoglobulin G4-related disease, presented with hydrocele testis. A planned hydrocelectomy was converted to a high orchiectomy because of bloody fluid, suggestive of paratesticular malignancy. The histopathology showed vaginalitis, which was finally diagnosed as immunoglobulin G4-related disease. To the best of our knowledge, this is the first report of immunoglobulin G4-related disease representing hydrocele testis.
August 15, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28809054/editorial-comment-to-case-of-hydrocele-testis-caused-by-vaginalitis-a-rare-manifestation-of-immunoglobulin-g4-related-disease
#11
Tetsuya Shindo
No abstract text is available yet for this article.
August 15, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/28807743/two-decades-of-experience-with-laparoscopic-varicocele-repair-in-children-standardizing-the-technique
#12
Ciro Esposito, Maria Escolino, Marco Castagnetti, Mariapina Cerulo, Alessandro Settimi, Giuseppe Cortese, Francesco Turrà, Marta Iannazzone, Serena Izzo, Giuseppe Servillo
BACKGROUND: Controversy still exists about the indications and the gold standard approach for varicocele treatment in pediatric population. OBJECTIVE: The authors report their 23 years of experience in laparoscopic varicocele repair in the pediatric population. STUDY DESIGN: We retrospectively evaluated the data of 345 consecutive patients who underwent laparoscopic left varicocelectomy from January 1993 to December 2015. Average patient age was 12...
July 26, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28806564/tissue-distribution-and-toxicity-effects-of-myclobutanil-enantiomers-in-lizards-eremias-argus
#13
Li Chen, Ruiting Li, Jinling Diao, Zhongnan Tian, Shanshan Di, Wenjun Zhang, Cheng Cheng, Zhiqiang Zhou
In recent years, serious environmental pollution has caused a decrease in the abundance of many species worldwide. Reptiles are the most diverse group of terrestrial vertebrates. There are large amounts of toxicological data available regarding myclobutanil, but the adverse effects of myclobutanil on lizards has not been widely reported. In this study, treatment groups were orally administered a single-dose of myclobutanil (20mg/kg body weight (bw)). Subsequently, it was found that there were differences in myclobutanil levels between the different tissues and concentrations also changed with degradation time...
August 11, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28805820/prostate-cancer-associated-spop-mutations-confer-resistance-to-bet-inhibitors-through-stabilization-of-brd4
#14
Xiangpeng Dai, Wenjian Gan, Xiaoning Li, Shangqian Wang, Wei Zhang, Ling Huang, Shengwu Liu, Qing Zhong, Jianping Guo, Jinfang Zhang, Ting Chen, Kouhei Shimizu, Francisco Beca, Mirjam Blattner, Divya Vasudevan, Dennis L Buckley, Jun Qi, Lorenz Buser, Pengda Liu, Hiroyuki Inuzuka, Andrew H Beck, Liewei Wang, Peter J Wild, Levi A Garraway, Mark A Rubin, Christopher E Barbieri, Kwok-Kin Wong, Senthil K Muthuswamy, Jiaoti Huang, Yu Chen, James E Bradner, Wenyi Wei
The bromodomain and extraterminal (BET) family of proteins comprises four members-BRD2, BRD3, BRD4 and the testis-specific isoform BRDT-that largely function as transcriptional coactivators and play critical roles in various cellular processes, including the cell cycle, apoptosis, migration and invasion. BET proteins enhance the oncogenic functions of major cancer drivers by elevating the expression of these drivers, such as c-Myc in leukemia, or by promoting the transcriptional activities of oncogenic factors, such as AR and ERG in prostate cancer...
August 14, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28803930/identification-of-neuroglobin-as-a-novel-player-in-anti-bacterial-responses-in-amphioxus
#15
Yu Bai, Shousheng Liu, Xia Wang, Xiaoyuan Du, Guangdong Ji, Shicui Zhang
Theoretical considerations support various functions of neuroglobin (Ngb), but further studies are required for full characterization of these functions. In this study, we identified the presence of a single Ngb gene, BjNgb, in the amphioxus Branchiostoma japonicum. BjNgb was expressed in various tissues including the notochord, gonads (ovary and testis) and gill, and up-regulated significantly in response to the challenge with LPS and LTA, suggesting involvement in immune response of amphioxus against bacterial infection...
August 10, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28803538/pharmacokinetics-of-tafamidis-a-transthyretin-amyloidosis-drug-in-rats
#16
Kyeong-Ryoon Lee, Jong-Woo Jeong, Hun-Chan Hyun, Jang Eunseo, Sunjoo Ahn Ahn, Sungwook Choi, Sang Hoon Joo, Sung-Sub Kim, Tae-Sung Koo
1. We characterized the pharmacokinetics of tafamidis, a novel drug to treat transthyretin-related amyloidosis, in rats after intravenous and oral administration at doses of 0.3-3 mg/kg. In vitro Caco-2 cell permeability and liver microsomal stability, as well as in vivo tissue distribution and plasma protein binding were also examined. 2. After intravenous injection, systemic clearance (CL), volumes of distribution at steady state (Vss), and half-life (T½) remained unaltered as a function of dose, with values in the ranges of 6...
August 14, 2017: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/28802108/do-environmental-factors-affect-male-fathead-minnow-pimephales-promelas-response-to-estrone-part-2-temperature-and-food-availability
#17
N W Shappell, D J Feifarek, D C Rearick, S E Bartell, H L Schoenfuss
Fish are subject to constantly changing environmental conditions and food availability, factors that may impact their response to endocrine disruptors (EDs). This may, in part, explain outcome discrepancies between field studies and laboratory exposures to EDs. This study assessed whether standard laboratory conditions for fish exposures adequately represent effects of ED exposure at two environmentally realistic temperatures. The impact of temperature and food availability on male fathead minnow response to estrone (E1) exposure was studied in two experiments (3×2×2 factorial design) with three E1 concentrations (range 0-135ng/L); two temperatures (18°C and 26°C, the latter the prescribed laboratory temperature), and two feeding treatments (full fed vs...
August 9, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28800180/epithelioid-malignant-mesothelioma-metastatic-to-the-skin-a-case-report-and-review-of-the-literature
#18
Rachel Elizabeth Ward, Stefanie Ann Ali, Matthew Kuhar
Mesothelioma is a rare form of cancer arising from a monolayer of mesothelial cells that form the lining of the internal body cavities and organs, with the vast majority of cases arising from the pleura (65-80%), less commonly from the peritoneum (10-30%), and rarely from the pericardium and tunica vaginalis testis (1-2%).
August 11, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28799651/thermal-mapping-on-male-genital-and-skin-tissues-of-laptop-thermal-sources-and-electromagnetic-interaction
#19
Mahdi Safari, Navid Mosleminiya, Ali Abdolali
Since the development of communication devices and expansion of their applications, there have been concerns about their harmful health effects. The main aim of this study was to investigate laptop thermal effects caused by exposure to electromagnetic fields and thermal sources simultaneously; propose a nondestructive, replicable process that is less expensive than clinical measurements; and to study the effects of positioning any new device near the human body in steady state conditions to ensure safety by U...
August 11, 2017: Bioelectromagnetics
https://www.readbyqxmd.com/read/28797103/effects-of-cancer-testis-antigen-tfdp3-on-cell-cycle-regulation-and-its-mechanism-in-l-02-and-hepg2-cell-lines-in-vitro
#20
Yunshen Jiao, Lingyu Ding, Ming Chu, Tieshan Wang, Jiarui Kang, Xiaofan Zhao, Huanhuan Li, Xi Chen, Zirui Gao, Likai Gao, Yuedan Wang
TFDP3, also be known as HCA661, was one of the cancer-testis antigens, which only expressed in human tissues. The recent researches about TFDP3 mostly focused on its ability to control the drug resistance and apoptosis of tumor cells. However, the role of TFDP3 in the progress of the cell cycle is rarely involved. In this study, we examined the expression of TFDP3 in human liver tissues firstly. After that, we detect the expression of TFDP3 at the RNA level and protein level in L-02 cell line and HepG2 cell line, and the location of TFDP3 was defined by immunofluorescence technique...
2017: PloS One
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