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https://www.readbyqxmd.com/read/28820276/attenuation%C3%A2-of-sulfite-induced-testicular-injury-in-rats-by-zingiber-officinale-roscoe
#1
Akbar Afkhami Fathabad, Shahnaz Shekarforoush, Maryam Hoseini, Zahra Ebrahimi
Sulfite salts, including sodium metabisulfte, are widely used as preservatives in foods and pharmaceutical agents. Previous studies suggest that oxidative stress may be an important mediator of testicular injury. The present study was designed to elucidate the effect of exposure to sodium metabisulfite by gavage without or with Zingiber officinale (ginger) extract on the rat testes. Thirty-two male Wistar rats were randomly divided into control, ginger-treated (500 mg/kg/day), sodium metabisulfite- (SMB-) treated (260 mg/kg/day), and SMB + ginger- (SZ-) treated groups...
August 18, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/28816603/analysis-of-the-small-non-protein-coding-rna-profile-of-mouse-spermatozoa-reveals-specific-enrichment-of-pirnas-within-mature-spermatozoa
#2
Kate Hutcheon, Eileen A McLaughlin, Simone J Stanger, Ilana R Bernstein, Matthew D Dun, Andrew L Eamens, Brett Nixon
Post-testicular sperm maturation and storage within the epididymis is a key determinant of gamete quality and fertilization competence. Here we demonstrate that mouse spermatozoa possess a complex small non-protein-coding RNA (sRNA) profile, the composition of which is markedly influenced by their epididymal transit. Thus, although miRNAs are highly represented in the spermatozoa of the proximal epididymis, this sRNA class is largely diminished in mature spermatozoa of the distal epididymis. Coincident with this, a substantial enrichment in Piwi-interacting RNA (piRNA) abundance in cauda spermatozoa was detected...
August 17, 2017: RNA Biology
https://www.readbyqxmd.com/read/28814640/agpat4-lpaat%C3%AE-deficiency-highlights-the-molecular-heterogeneity-of-epididymal-and-perirenal-white-adipose-depots
#3
Emily B Mardian, Ryan M Bradley, Juan J Aristizabal Henao, Phillip M Marvyn, Katherine A Moes, Eric Bombardier, A Russell Tupling, Ken D Stark, Robin E Duncan
Acylglycerophosphate acyltransferase 4 (AGPAT4)/lysophosphatidic acid acyltransferase delta (LPAATδ) catalyzes the formation of phosphatidic acid (PA), a precursor of triacylglycerol (TAG). We investigated the effect of Agpat4 gene ablation on white adipose tissue (WAT), after finding consistent expression across depots. Epididymal WAT mass was 40% larger in male Agpat4-/- mice than wildtype littermates, but unchanged in perirenal, retroperitoneal, and inguinal WAT and subscapular brown adipose tissue. Metabolic changes were identified in epididymal WAT that were not evident in perirenal WAT, which was analyzed for comparison...
August 16, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28809845/whole-cell-patch-clamp-recordings-of-isolated-primary-epithelial-cells-from-the-epididymis
#4
Bao Li Zhang, Da Yuan Gao, Xiao Xu Zhang, Shuo Shi, Winnie Shum
The epididymis is an essential organ for sperm maturation and reproductive health. The epididymal epithelium consists of intricately connected cell types that are distinct not only in molecular and morphological features but also in physiological properties. These differences reflect their diverse functions, which together establish the necessary microenvironment for the post-testicular sperm development in the epididymal lumen. The understanding of the biophysical properties of the epididymal epithelial cells is critical for revealing their functions in sperm and reproductive health, under both physiological and pathophysiological conditions...
August 3, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28809824/creation-and-transplantation-of-an-adipose-derived-stem-cell-asc-sheet-in-a-diabetic-wound-healing-model
#5
Yuka Kato, Takanori Iwata, Kaoru Washio, Toshiyuki Yoshida, Hozue Kuroda, Shunichi Morikawa, Mariko Hamada, Kazuki Ikura, Nobuyuki Kaibuchi, Masayuki Yamato, Teruo Okano, Yasuko Uchigata
Artificial skin has achieved considerable therapeutic results in clinical practice. However, artificial skin treatments for wounds in diabetic patients with impeded blood flow or with large wounds might be prolonged. Cell-based therapies have appeared as a new technique for the treatment of diabetic ulcers, and cell-sheet engineering has improved the efficacy of cell transplantation. A number of reports have suggested that adipose-derived stem cells (ASCs), a type of mesenchymal stromal cell (MSC), exhibit therapeutic potential due to their relative abundance in adipose tissue and their accessibility for collection when compared to MSCs from other tissues...
August 4, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28806763/genome-wide-regulation-of-electro-acupuncture-on-the-neural-stat5-loss-induced-obese-mice
#6
Shu-Ping Fu, Hao Hong, Sheng-Feng Lu, Chen-Jun Hu, Hou-Xi Xu, Qian Li, Mei-Ling Yu, Chen Ou, Jian-Zhong Meng, Tian-Lin Wang, Lothar Hennighausen, Bing-Mei Zhu
Acupuncture is reported to be effective in treating obesity related illnesses, but its mechanism is still unclear. To investigate this mechanism we applied electro-acupuncture (EA) in a mouse model of obesity and used RNA-seq to identify molecular consequences. Deletion of the transcription factor STAT5 from neurons (Stat5NKO) led to obesity. Acupuncture, in turn, reduced body weight and the ratio of epididymal white adipose tissue (Epi-WAT) to body weight, and it also decreased plasma concentrations of glucose, triglyceride, and cholesterol...
2017: PloS One
https://www.readbyqxmd.com/read/28806153/expression-purification-and-refolding-of-human-lipocalin-6-and-production-of-a-monoclonal-antibody-against-this-protein
#7
Jiong Chen, Wei Feng, Yue Zhao, Yaqin Li, Fei Zhan
Human lipocalin 6 (hLCN6) is a member of the lipocalin family, which is a group of structurally conserved hydrophobic ligand binding proteins, and widely distributed in animal, plant, and bacteria. Specific expression of hLCN6 in the epididymis and localization of this protein on the surface of spermatozoa suggest a role played by hLCN6, which may function as a transporter to carry ligands in the epididymal channel. However, the role of hLCN6 in sperm maturation has been largely unknown due to the lack of effective antibodies...
August 2017: Monoclonal Antibodies in Immunodiagnosis and Immunotherapy
https://www.readbyqxmd.com/read/28804438/green-tea-extract-induces-genes-related-to-browning-of-white-adipose-tissue-and-limits-weight-gain-in-high-energy-diet-fed-rat
#8
Li-Han Chen, Yi-Wen Chien, Chung-Tiang Liang, Ching-Hung Chan, Meng-Han Fan, Hui-Yu Huang
Background: A wealth of research has reported on the anti-obesity effects of green tea extract (GTE). Although browning of white adipose tissue (WAT) has been reported to attenuate obesity, no study has disclosed the effects of GTE on browning in Sprague Dawley rats. Objectives: The aims of the study were to investigate the effects of GTE on anti-obesity and browning, and their underlying mechanisms. Methods: Four groups of rats (n=10/group) were used including a normal diet with vehicle treatment, and a high-energy diet (HED) with vehicle or GTE by oral gavage at 77...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28803779/chromodomain-protein-cdyl-acts-as-a-crotonyl-coa-hydratase-to-regulate-histone-crotonylation-and-spermatogenesis
#9
Shumeng Liu, Huajing Yu, Yongqing Liu, Xinhua Liu, Yu Zhang, Chen Bu, Shuai Yuan, Zhe Chen, Guojia Xie, Wanjin Li, Bosen Xu, Jianguo Yang, Lin He, Tong Jin, Yundong Xiong, Luyang Sun, Xiaohui Liu, Chunsheng Han, Zhongyi Cheng, Jing Liang, Yongfeng Shang
Lysine crotonylation (Kcr) is a newly identified histone modification that is associated with active transcription in mammalian cells. Here we report that the chromodomain Y-like transcription corepressor CDYL negatively regulates histone Kcr by acting as a crotonyl-CoA hydratase to convert crotonyl-CoA to β-hydroxybutyryl-CoA. We showed that the negative regulation of histone Kcr by CDYL is intrinsically linked to its transcription repression activity and functionally implemented in the reactivation of sex chromosome-linked genes in round spermatids and genome-wide histone replacement in elongating spermatids...
July 29, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28801719/the-phospholipid-composition-of-kangaroo-spermatozoa-verified-by-mass-spectrometric-lipid-analysis
#10
Kathrin M Engel, Jürgen Schiller, Karin Müller, Dirk Dannenberger, Ulrike Jakop
Cryopreservation of kangaroo sperm has not been successful so far, and yet there is no promising cryopreservation protocol for these cells available. However, conservation of gametes is extremely important, particularly in the context of preserving endangered species. As spermatozoa are comprised of different membrane systems, the composition of these membranes might account for difficulties in cryopreservation. Lipids, as the main components, affect the physical properties of biological membranes and play a major role in sperm maturation...
August 11, 2017: Lipids
https://www.readbyqxmd.com/read/28801239/salsalate-activates-skeletal-muscle-thermogenesis-and-protects-mice-from-high-fat-diet-induced-metabolic-dysfunction
#11
Li Nie, Xin-Lu Yuan, Ke-Tao Jiang, Yu-Hui Jiang, Jin Yuan, Lan Luo, Shi-Wei Cui, Cheng Sun
Salsalate plays beneficial roles for ameliorating hyperglycemia and dyslipidemia in type 2 diabetes patients, but the underlying mechanisms are still poorly understood. In this study, by administering salsalate to mice fed with high fat diet and examining how salsalate rectifies metabolic dysfunction in these obese mice, we found that salsalate stimulated body temperature and attenuated body weight gain without affecting food intake. Our results showed that salsalate application decreased lipid accumulation in liver and epididymal white adipose tissue (eWAT), inhibited hepatic gluconeogenesis and improved insulin signaling transduction in eWAT...
August 4, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28792252/rosa-damascena-mill-essential-oil-has-protective-effect-against-testicular-damage-in-diabetic-rats
#12
Somayeh Hamedi, Tahoora Shomali, Aliakbar Haghighat
This study investigates the protective effect of Rosa damascena essential oil on diabetes-induced testicular damage in rats. Thirty-six male Wistar rats were randomly divided into 6 equal groups: Group I: negative control (no treatment); Group II: positive control (diabetic by alloxan injection); Groups III-VI that rendered diabetic and received, respectively, 50, 100, 200, and 400 µg/kg/day rose oil, orally for 28 days. Rose oil did not significantly change body weight and blood glucose level as compared to positive control...
August 9, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/28789977/ablation-of-systemic-sirt1-activity-promotes-nonalcoholic-fatty-liver-disease-by-affecting-liver-mesenteric-adipose-tissue-fatty-acid-mobilization
#13
Junrui Cheng, Chun Liu, Kangquan Hu, Andrew Greenberg, Dayong Wu, Lynne M Ausman, Michael W McBurney, Xiang-Dong Wang
Sirtuin 1 (SIRT1) has been reported to protect against nonalcoholic fatty liver disease (NAFLD) development. The mechanism of how SIRT1 deacetylase activity affects NAFLD has not been well investigated. The current investigation addressed the causal effect of systemic SIRT1 activity on NAFLD development and the underlying mechanism involved in both liver and mesenteric adipose tissue (MAT). Both SIRT1 homozygous mice ablated the catalytic activity (sirt1(Y/Y)) and their corresponding wild type littermates (WT) were fed a high fat diet (HFD, 60% calories from fat) for 34weeks...
August 5, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28789814/colocalization-of-metastasis-associated-proteins-1-2-and-estrogen-receptor-alpha-in-rat-epididymis
#14
Pang Cheng, Jie Zhao, Huilian Qiao, He Ma, Binfang Ma, Jinhua Wei, Yunqing Li, Zhen Li
It has been suggested that metastasis-associated proteins 1 and 2 (MTA1 and MTA2) are capable of suppressing estrogen receptor alpha (ERα) transactivation activity in breast cancer cells. ERα, which is present in the epididymis, is a crucial mediator of maintaining the luminal environment necessary for proper sperm maturation and function. The present study was undertaken to analyze the expression profile of both MTA1 and MTA2 in the epididymis of rats and to ascertain whether MTA1/2 colocalizes with ERα in the epididymis and primary cultured epididymal epithelial cells...
July 29, 2017: Tissue & Cell
https://www.readbyqxmd.com/read/28774767/variation-in-the-evaluation-of-testicular-conditions-across-united-states-pediatric-emergency-departments
#15
Lois K Lee, Michael C Monuteaux, Joel D Hudgins, John J Porter, Susan C Lipsett, Florence Bourgeois, Bartley G Cilento, Mark I Neuman
OBJECTIVES: To explore the variation in diagnostic testing and management for males diagnosed with three testicular conditions (testicular torsion, appendix testis torsion, epididymitis/orchitis) using a large pediatric health care database. Diagnostic testing is frequently used in evaluation of the acute scrotum; however, there is likely variability in the use of these tests in the emergency department setting. METHODS: We conducted a cross-sectional study of males with the diagnoses of testicular torsion, appendix testis torsion, and epididymitis/orchitis...
July 26, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28772113/structural-integrity-and-developmental-potential-of-spermatozoa-following-microwave-assisted-drying-in-the-domestic-cat-model
#16
Jennifer L Patrick, Gloria D Elliott, Pierre Comizzoli
Characterizing the resilience of mammalian cells to non-physiological conditions is necessary to develop preservation and long-term storage strategies at low or ambient temperatures. Using the domestic cat model, the objective of the study was to characterize structural integrity (morphology and DNA damage) as well as functional properties (sperm aster formation and embryo formation after sperm injection) of spermatozoa after microwave-assisted drying to a moisture content compatible with storage in a glassy state at supra-zero temperatures...
July 26, 2017: Theriogenology
https://www.readbyqxmd.com/read/28768657/energy-homeostasis-in-apolipoprotein-aiv-and-cholecystokinin-deficient-mice
#17
Jonathan Weng, Danwen Lou, Stephen C Benoit, Natalie Coschigano, Stephen C Woods, Patrick Tso, Chunmin C Lo
Apolipoprotein AIV (ApoAIV) and cholecystokinin (CCK) are well-known satiating signals that are stimulated by fat consumption. Peripheral ApoAIV and CCK interact to prolong satiating signals. In the present study, we hypothesized that ApoAIV and CCK control energy homeostasis in response to high-fat diet feeding. To test this hypothesis, energy homeostasis in ApoAIV and CCK double knockout (ApoAIV/CCK-KO), ApoAIV knockout (ApoAIV-KO), and CCK knockout (CCK-KO) mice were monitored. When animals were maintained on a low-fat diet, ApoAIV/CCK-KO, ApoAIV-KO, and CCK-KO mice had comparable energy intake and expenditure, body weight, fat mass, fat absorption, and plasma parameters relative to the controls...
August 2, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28762248/engineering-brown-fat-into-skeletal-muscle-using-ultrasound-targeted-microbubble-destruction-gene-delivery-in-obese-zucker-rats-proof-of-concept-design
#18
Raul A Bastarrachea, Jiaxi Chen, Jack W Kent, Edna J Nava-Gonzalez, Ernesto Rodriguez-Ayala, Marcel M Daadi, Barbara Jorge, Hugo Laviada-Molina, Anthony G Comuzzie, Shuyuan Chen, Paul A Grayburn
Ultrasound-targeted microbubble destruction (UTMD) is a novel means of tissue-specific gene delivery. This approach systemically infuses transgenes precoupled to gas-filled lipid microbubbles that are burst within the microvasculature of target tissues via an ultrasound signal resulting in release of DNA and transfection of neighboring cells within the tissue. Previous work has shown that adenovirus containing cDNA of UCP-1, injected into the epididymal fat pads in mice, induced localized fat depletion, improving glucose tolerance, and decreasing food intake in obese diabetic mice...
July 31, 2017: IUBMB Life
https://www.readbyqxmd.com/read/28762084/anatomy-and-histology-of-the-scrotal-ligament-in-adults-inconsistency-and-variability-of-the-gubernaculum-testis
#19
G Cavalie, Alexandre Bellier, G Marnas, B Boisson, Y Robert, P Y Rabattu, P Chaffanjon
PURPOSE: The anatomy of gubernaculum testis (GT) is often discussed; however, the postnatal anatomy of the GT or scrotal ligament (SL) is rarely described. Hence, we performed an anatomical and histological study to analyze histologically the structures between testis and scrotum. METHODS: We performed anatomical dissections on 25 human fresh cadavers' testes. Each testis was removed with its envelopes and macroscopically analyzed. Then samples were included for histological study...
July 31, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28759941/maternal-high-fat-diet-during-pregnancy-and-lactation-has-opposite-effects-on-gonadal-expression-of-leptin-and-leptin-receptor-in-rat-dams-and-their-offspring
#20
Agnieszka Rak, Anna Hejmej, Monika Słupecka-Ziemilska, Jaroslaw Woliński, Elzbieta Fiedor, Barbara Bilinska, Ewa Ł Gregoraszczuk
This study investigated the effect of a high-fat (HF) diet on protein expression of leptin and its receptor in the gonads of dams and their offspring. Female Wistar rats were fed a HF diet (30% fat) or a standard breeding (BD) diet (5% fat) during pregnancy and lactation. At 21 days of lactation, mothers and both sexes of prepubertal offspring were killed by decapitation. The protein expression of leptin and its receptor was assayed by Western blot and immunohistochemistry in gonadal, periovarian, and epididymal white adipose tissue (WAT)...
July 31, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
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