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testicular atrophy

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https://www.readbyqxmd.com/read/28613007/transcriptional-coactivator-with-pdz-binding-motif-is-required-to-sustain-testicular-function-on-aging
#1
Mi Gyeong Jeong, Hyuna Song, Ji Hyun Shin, Hana Jeong, Hyo Kyeong Kim, Eun Sook Hwang
Transcriptional coactivator with PDZ-binding motif (TAZ) directly interacts with transcription factors and regulates their transcriptional activity. Extensive functional studies have shown that TAZ plays critical regulatory roles in stem cell proliferation, differentiation, and survival and also modulates the development of organs such as the lung, kidney, heart, and bone. Despite the importance of TAZ in stem cell maintenance, TAZ function has not yet been evaluated in spermatogenic stem cells of the male reproductive system...
June 14, 2017: Aging Cell
https://www.readbyqxmd.com/read/28609104/di-2-ethylhexyl-phthalate-alters-the-synthesis-and-%C3%AE-oxidation-of-fatty-acids-and-hinders-atp-supply-in-mouse-testes-via-uplc-q-exactive-orbitrap-ms-based-metabonomics-study
#2
Guolin Shen, Lili Zhou, Wei Liu, Yuan Cui, Wenping Xie, Huiming Chen, Wenlian Yu, Wentao Li, Haishan Li
Di(2-ethylhexyl) phthalate (DEHP) is considered to be an environmental endocrine disruptor at high levels of general exposure. Studies show that DEHP may cause testicular toxicity on human being. In this study, metabonomics techniques were used to identify differential endogenous metabolites, draw the network metabolic pathways, and conduct network analysis, to determine the underlying mechanisms of testicular toxicity induced by DEHP. The results showed that DEHP inhibited synthesis and accelerated β-oxidation of fatty acids and impaired the tricarboxylic acid cycle (TCA cycle) and gluconeogenesis, resulting in lactic acid accumulation and an insufficient ATP supply in the microenvironment of the testis...
June 21, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28597284/comparison-of-single-incision-laparoscopic-percutaneous-extraperitoneal-closure-silpec-and-open-repair-for-pediatric-inguinal-hernia-a-single-center-retrospective-cohort-study-of-2028-cases
#3
Hizuru Amano, Yujiro Tanaka, Hiroshi Kawashima, Kyoichi Deie, Michimasa Fujiogi, Keisuke Suzuki, Kaori Morita, Tadashi Iwanaka, Hiroo Uchida
BACKGROUD: Recently, laparoscopic percutaneous extraperitoneal closure (LPEC) has gained increased popularity for pediatric inguinal hernia repair. To improve cosmesis, we developed single incision LPEC (SILPEC). The aim of this study was to assess the safety and feasibility of SILPEC compared with traditional open repair (OR). METHODS: This was a single-center retrospective cohort study of 2028 children who underwent inguinal hernia repair between April 2005 and August 2014...
June 8, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28593638/thrombotic-and-nonthrombotic-types-of-intratesticular-varicoceles-value-of-sonography-for-the-diagnosis
#4
Emre Ünal
An intratesticular varicocele is an uncommon entity, and its clinical importance remains unclear. The diagnosis can be made in the case of an intratesticular tortuous vein that shows retrograde flow on color Doppler sonography. The anatomic location and course of the intratesticular varicocele within the testicular parenchyma and its association with the existence of an ipsilateral extratesticular varicocele may vary among patients. The pathophysiologic mechanisms remain unclear; however, it may be questioned whether there is an association between testicular atrophy and intratesticular varicocele development...
June 8, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28584396/protective-role-of-testis-specific-peroxiredoxin-4-against-cellular-oxidative-stress
#5
Eisuke Tasaki, Shotaro Matsumoto, Hisashi Tada, Toshihiro Kurahashi, Xuhong Zhang, Junichi Fujii, Toshihiko Utsumi, Yoshihito Iuchi
Peroxiredoxin (PRDX), a newly discovered antioxidant enzyme, has an important role in hydrogen peroxide reduction. Among six PRDX genes (PRDX1-6) in mammals, PRDX4 gene is alternatively spliced to produce the somatic cell form (PRDX4) and the testis specific form (PRDX4t). In our previous study, PRDX4 knockout mice displayed testicular atrophy with an increase in cell death due to oxidative stress. However, the antioxidant function of PRDX4t is unknown. In this study, we demonstrate that PRDX4t plays a protective role against oxidative stress in the mammalian cell line HEK293T...
May 2017: Journal of Clinical Biochemistry and Nutrition
https://www.readbyqxmd.com/read/28583614/effects-of-active-immunization-against-gnrh-versus-surgical-castration-on-hypothalamic-pituitary-function-in-boars
#6
Xingfa Han, Yuqin Zhou, Yu Zeng, Fenfen Sui, Yacheng Liu, Yao Tan, Xiaohan Cao, Xiaogang Du, Fengyan Meng, Xianyin Zeng
The objective was to compare effects of anti-GnRH immunization (immunocastration) versus surgical castration on hypothalamic-pituitary function in boars. Thirty-six boars were randomly divided into three groups (n = 12/group): control, surgically castrated, or immunized against GnRH at 10 wk of age (boostered 8 wk later). Compared to intact boars, immunocastration reduced (P < 0.05) serum concentrations of LH, FSH, testosterone and inhibin B and caused severe testicular atrophy, whereas surgical castration increased (P < 0...
July 15, 2017: Theriogenology
https://www.readbyqxmd.com/read/28573934/testicular-fibrous-hypoplasia-in-cynomolgus-monkeys-macaca-fascicularis-an-incidental-congenital-lesion
#7
Marcia E Pereira Bacares, Vimala Vemireddi, Dianne Creasy
Testicular fibrous hypoplasia is an incidental lesion characterized by replacement of the testicular parenchyma by mature collagen. A retrospective survey of hematoxylin and eosin-stained testicular sections from 722 purpose-bred Asian and 90 Mauritian cynomolgus monkeys from 56 safety assessment studies conducted between 1999 and 2011 was performed. The incidence of the lesion increased markedly over time. No cases occurred between 1999 and 2004. Between 2005 and 2009, the incidence ranged between 8.1% and 11...
January 1, 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/28565802/continuous-type-splenogonadal-fusion-a-case-report
#8
Guizhen Huang, Yidong Huang, Li Zeng, Miao Yuan, Yang Wu, Lugang Huang
Splenogonadal fusion (SGF) is a rare congenital malformation. Since it lacks characteristic features, very few cases of SGF have been diagnosed preoperatively. Laparoscopy was effective in both diagnosing and surgically treating this condition. Herein, we reported left side SGF in a male patient who was diagnosed during laparoscopic exploration, and Fowler-Stephens orchidopexy was implemented at the same time. The patient was followed up for one year. At a 6-month follow-up, the left scrotum demonstrated swelling and the internal contents were hard...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28501004/adipose-derived-mesenchymal-stem-cells-slow-disease-progression-of-acute-on-chronic-liver-failure
#9
Carlos Gilsanz, Maria-Angeles Aller, Sherezade Fuentes-Julian, Isabel Prieto, Alejandro Blázquez-Martinez, Salvador Argudo, Jorge Fernández-Delgado, Jose Beleña, Jaime Arias, María P De Miguel
A serious complication of chronic hepatic insufficiency is acute-on-chronic liver failure, a recognized syndrome characterized by acute decompensation of cirrhosis and organ/system failure. We investigated the use of adipose-derived mesenchymal stem cells (AD-MSCs) in an experimental model of acute-on-chronic liver failure, developed by microsurgical extrahepatic cholestasis in rats. Rats undergoing microsurgical extrahepatic cholestasis were treated by intraparenchymal liver injection of human or rat AD-MSCs, undifferentiated or previously differentiated in vitro toward the hepatocyte lineage...
July 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28484818/rives-technique-for-the-primary-larger-inguinal-hernia-repair-a-prospective-study-of-1000-repairs
#10
Enrique J Grau-Talens, Carlos D Ibáñez, Jacob Motos-Micó, Francisco García-Olives, Martina Arribas-Jurado, Carlos Jordán-Chaves, José M Aparicio-Gallego, José F Salgado
OBJECTIVE: We report a prospective study of repairs using the Rives technique of the more difficult primary inguinal hernias, focusing on the immediate post-operative period, clinical recurrence, testicular atrophy, and chronic pain. A mesh placed in the preperitoneal space can reduce recurrences and chronic pain. METHODS: For the larger primary inguinal hernias (Types 3, 4, 6, and some 7), we favour preperitoneal placement of a mesh, covering the myopectineal orifice by means of a transinguinal (Rives technique) approach...
May 8, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28466616/one-stage-laparoscopic-orchiopexy-for-the-treatment-of-intraabdominal-testis
#11
Jaber R Jawdat, Stanislav Kocherov, Boris Chertin
BACKGROUND: Laparoscopy has gradually become the gold standard for the treatment of non-palpable testicles (NPT), with different success and complication rates. OBJECTIVES: To evaluate outcomes of the one-stage laparoscopic orchiopexy for NPT in our department. METHODS: We retrospectively evaluated the medical files of patients who underwent laparoscopic orchidopexy with the identical technique. Only patients with at least one year follow-up were included...
November 2016: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/28447709/-atypical-cushing-s-syndrome-in-a-dog-a-case-report
#12
Stefanie Hoffrogge, Lena Fels, Marion Schmicke, Reinhard Mischke
In a 12-year-old male Labrador Retriever, presented due to other disease symptoms, clinical signs of hyperadrenocorticism (polyuria, polydipsia, abdominal distention, muscle atrophy) were an incidental finding. Abnormal laboratory results and sonographic findings of the adrenal glands, but negative low-dose dexamethasone suppression tests with low basal cortisol concentrations, a negative andrenocorticotropic hormone (ACTH)-stimulation test and exclusion of iatrogenic hyperadrenocorticism, suggested an atypical hyperadrenocorticism (AHAC)...
April 27, 2017: Tierärztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
https://www.readbyqxmd.com/read/28413379/effect-of-microsurgical-subinguinal-varicocele-repair-on-chronic-dull-scrotal-pain-in-men-with-grade-ii-iii-lesions
#13
Saad Elzanaty, Claus E Johansen
INTRODUCTION: We aimed to evaluate the effectiveness of microsurgical subinguinal varicocele repair in patients with grade II-III lesions and chronic dull scrotal pain. MATERIALS AND METHODS: A total of 29 patients with grade II-III varicocele and chronic dull scrotal pain that had a microsurgical subinguinal varicocele repair were included in the study. They were followed-up for 6-12 months including pain assessment and scrotal examination. RESULTS: Of the 29 patients, 28 (97%) reported complete resolution of pain with no palpable varicocele on scrotal examination...
January 2017: Current Urology
https://www.readbyqxmd.com/read/28412171/gender-specific-amelioration-of-sma-phenotype-upon-disruption-of-a-deep-intronic-structure-by-an-oligonucleotide
#14
Matthew D Howell, Eric W Ottesen, Natalia N Singh, Rachel L Anderson, Ravindra N Singh
Spinal muscular atrophy (SMA), the leading genetic disease of children, is caused by low levels of survival motor neuron (SMN) protein. Here, we employ A15/283, an antisense oligonucleotide targeting a deep intronic sequence/structure, to examine the impact of restoration of SMN in a mild SMA mouse model. We show gender-specific amelioration of tail necrosis upon subcutaneous administrations of A15/283 into SMA mice at postnatal days 1 and 3. We also demonstrate that a modest increase in SMN due to early administrations of A15/283 dramatically improves testicular development and spermatogenesis...
June 7, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28390185/the-non-peptide-vasopressin-v1b-receptor-antagonist-ssr149415-ameliorates-spermatogenesis-function-in-a-mouse-model-of-chronic-social-defeat-stress
#15
Bin Wang, Jian Zhou, Yan-Yan Zhuang, Liang-Liang Wang, Jin-Xian Pu, Yu-Hua Huang, Fei Xia, Jin-Xing Lv
To determine the effects of SSR149415 on testis and spermatogenesis in male mice subjected to chronic social defeat stress, C57BL/6 male mice were divided into two groups: Control and Stress. Then Stress group was subdivided into four subgroups administered water, SSR149415 (1 mg/kg/day), SSR149415 (10 mg/kg/day), SSR149415 (30 mg/kg/day), respectively. The behavioral alterations revealed by social interaction test and open field test were measured. The physical indices, including body weight and gonad weight (testis and epididymis) as well as testis/body weight and cauda epididymis/body weight were detected...
April 8, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28389795/a-systematic-review-and-meta-analysis-concerning-single-site-laparoscopic-percutaneous-extraperitoneal-closure-for-pediatric-inguinal-hernia-and-hydrocele
#16
Yi Chen, Furan Wang, Hongji Zhong, Junfeng Zhao, Yan Li, Zhan Shi
BACKGROUND: Single-site laparoscopic percutaneous extraperitoneal closure (SLPEC) of hernia sac/processus vaginalis has been widely performed for repair of inguinal hernia/hydrocele in children. However, a variety of surgical instruments and techniques were used, and significant differences existed among the SLPEC reports. METHODS: A literature search was performed for all available studies concerning SLPEC for pediatric inguinal hernia/hydrocele in PubMed, Embase and Cochrane library...
April 7, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28371123/effects-of-nano-graphene-oxide-on-testis-epididymis-and-fertility-of-wistar-rats
#17
Naresh Kumar Nirmal, Kumud Kant Awasthi, Placheril Joseph John
Nanoscale graphene oxide (NGO) has great potential in biomedicine by the virtue of its facile functionalization and tunable characteristics. Toxicity assessments have therefore become essential prior to its biomedical applications. This study examined the effects of NGO exposure on male reproductive function of adult Wistar rats. Rats were exposed intraperitoneally to three increasing doses, namely low-dose (0.4 mg/kg BW), mid-dose (2.0 mg/kg BW) and high-dose (10.0 mg/kg BW) of NGO. Repeated exposure of NGO for 15 and 30 days resulted in decreased epididymal sperm counts and elevated sperm abnormalities...
March 29, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28366279/chemical-sterilisation-of-animals-a-review-of-the-use-of-zinc-and-cacl2-based-solutions-in-male-and-female-animals-and-factors-likely-to-improve-responses-to-treatment
#18
REVIEW
John Cavalieri
Chemical sterilisation can be used as an alternative to surgical castration in some circumstances. This review focuses on responses to treatment with zinc- or CaCl2-based chemosterilants, factors that have affected treatments and their potential use to sterilise female cattle. Successful treatment with a low incidence of adverse side effects in male animals has occurred with the use of zinc gluconate (ZG), neutralised in arginine and a 20% solution of CaCl2 in ethanol. Injection technique plays an important role in success...
March 18, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28359405/distribution-and-number-of-cajal-like-cells-in-testis-tissue-with-azoospermia
#19
Eray Hasirci, Tahsin Turunc, Nebil Bal, Mehmet Resit Goren, Huseyin Celik, Enis Kervancioglu, Ayhan Dirim, Mustafa Agah Tekindal, Hakan Ozkardes
We investigated the number and distribution of Cajal-like cells in patients with azoospermia. A total of 99 patients with non-obstructive azoospermia were divided into subgroups [19 patientsin hypospermatogenesis group (S1), 40 patients in maturation arrest group (S2), 20 patients in a Sertoli cell-only syndrome (S3), and 20 patients in a testicular atrophy and fibrosis group (S4)], and 20 patients with obstructive azoospermia group (S0). Sections stained with a c-kit antibody were studied by light microscopy to determine the number and distribution of Cajal-like cells in peritubular and perivascular areas of testis...
April 2017: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/28333214/-forever-young-%C3%A2-testosterone-replacement-therapy-a-blockbuster-drug-despite-flabby-evidence-and-broken-promises
#20
Andrea Busnelli, Edgardo Somigliana, Paolo Vercellini
In the last decade, testosterone replacement therapy (TRT) has been increasingly prescribed to treat a controversial condition known as 'late-onset hypogonadism (LOH)'. This syndrome is diagnosed in men who, for no discernible reason other than older age, obesity or ill health have serum testosterone concentrations below the normal range for healthy young men and report one or more of the following symptoms: muscle weakness or wasting, mood, behaviour and cognition-related symptoms and sexual function or libido impairment...
April 1, 2017: Human Reproduction
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