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https://www.readbyqxmd.com/read/28719823/supplementation-with-dietary-linseed-oil-during-peri-puberty-stimulates-steroidogenesis-and-testis-development-in-rams
#1
REVIEW
Wanhong Li, Defu Tang, Fadi Li, Huaqin Tian, Xiangpeng Yue, Fei Li, Xiuxiu Weng, Wu Sun, Weimin Wang, Futao Mo
Omega-3 polyunsaturated fatty acids (ω-3 PUFAs), such as α-linolenic acid (ALA), eicosapentaenoic acid, and docosahexaenoic acid, are involved in male reproductive function. In this study, we investigated the effects of linseed oil (LO) as a source of ALA on the steroidogenesis and changes of testicular histology in rams. Sixteen 3-month old rams during peri-puberty were randomly assigned into two groups. Eight rams were assigned as the control group, and the other received LO (4% dry matter of total diet) as the LO treatment group...
July 10, 2017: Theriogenology
https://www.readbyqxmd.com/read/28711705/bmp15-in-catfish-testis-cellular-distribution-seasonal-variation-and-its-role-in-steroidogenesis
#2
Himanshu Yadav, Bechan Lal
Considering the absence of information on testicular growth factors in fishes, present study was aimed to elucidate the existence of BMP15, an important member of TGF-β superfamily, in the testis of a seasonally breeding freshwater catfish, Clarias batrachus and its role in regulation of testicular activities. The study demonstrated the expression of BMP15 in the somatic cells (Sertoli and interstitial cells) in fish testis. The expression varied with changing testicular activity; the expression was very high in the quiescent and early recrudescing testis coinciding with the renewal of spermatogonial cells...
July 12, 2017: Steroids
https://www.readbyqxmd.com/read/28710192/organ-sparing-surgery-for-large-cell-calcifying-sertoli-cell-tumour-in-a-patient-with-carney-complex
#3
Maria José Freire, Pedro Nunes, Luà S Sousa, Arnaldo Figueiredo
Carney complex is a rare genetic disease characterised by a complex of myxomas, spotty pigmentation and endocrine overactivity. At diagnosis, about one-third of male patients presents with testicular tumours, namely large cell calcifying Sertoli cell tumours, which are often multicentric and/or bilateral and have a low malignant potential. Although radical orchiectomy is the gold standard for the treatment of testicular neoplasms, a conservative approach with partial orchiectomy or tumourectomy may be the best treatment option for these patients, allowing the preservation of endocrine function, fertility and body image...
July 14, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28708508/developmental-changes-in-the-histological-structure-of-the-testes-and-testosterone-profiles-in-male-guinea-fowls-numida-meleagris
#4
Iddriss I Abdul-Rahman, Frederick Y Obese, Ian A Jeffcoate
Owing to the paucity of information on the reproductive biology of guinea fowls, a study involving a total of 66 males was conducted, and documented the developmental changes in histological structure of the testes of guinea cocks from hatching until adulthood. Changes in testosterone synthesis during sexual development were also determined. Age-related changes were analysed using univariate analysis for completely randomised design and means separated using Tukey's test/Kruskal-Wallis test and medians separated by Mann-Whitney U test...
June 23, 2017: Theriogenology
https://www.readbyqxmd.com/read/28706413/virilization-in-a-postmenopausal-female-due-to-androgen-secreting-ovarian-dermoid-cyst
#5
Murali Subbaiah, Gowri Dorairajan, Debasis Gochhait, G Vijayalakshmi
Virilizing ovarian dermoid cysts are very rare. The source of androgen in these cysts may be tumors such as Sertoli-Leydig cell tumor or Leydig cell hyperplasia. A 52-year-old postmenopausal female with virilization was found to have an ovarian dermoid cyst on ultrasound. Her serum testosterone levels were elevated. Leydig cell hyperplasia within the dermoid cyst was found to be the source of androgen in this patient.
April 2017: Journal of Mid-life Health
https://www.readbyqxmd.com/read/28706261/plag1-deficiency-impairs-spermatogenesis-and-sperm-motility-in-mice
#6
Almas R Juma, Sylvia V H Grommen, Moira K O'Bryan, Anne E O'Connor, D Jo Merriner, Nathan E Hall, Stephen R Doyle, Pauliina E Damdimopoulou, Daniel Barriga, Adam H Hart, Wim J M Van de Ven, Bert De Groef
Deficiency in pleomorphic adenoma gene 1 (PLAG1) leads to reduced fertility in male mice, but the mechanism by which PLAG1 contributes to reproduction is unknown. To investigate the involvement of PLAG1 in testicular function, we determined (i) the spatial distribution of PLAG1 in the testis using X-gal staining; (ii) transcriptomic consequences of PLAG1 deficiency in knock-out and heterozygous mice compared to wild-type mice using RNA-seq; and (iii) morphological and functional consequences of PLAG1 deficiency by determining testicular histology, daily sperm production and sperm motility in knock-out and wild-type mice...
July 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28700438/foxl2-mutation-analysis-of-ovarian-sex-cord-stromal-tumors-genotype-phenotype-correlation-with-diagnostic-considerations
#7
Natalia Buza, Serena Wong, Pei Hui
Correlation of FOXL2 mutation status with morphologic features and reticulin staining patterns was performed in a comprehensive single-institutional cohort of ovarian sex cord-stromal tumors. Fifty-one cases were included, 35 of which were morphologically diagnosed as adult granulosa cell tumor, 4 as Sertoli-Leydig cell tumor, 11 as fibroma/fibrothecoma and 1 as a thecoma. Of the adult granulosa cell tumors, 31 (88.6%) harbored FOXL2 mutation. Abundant pale cytoplasm was seen in 51.6% (16/31) of FOXL2 mutated tumors, compared with 6...
July 11, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28700436/malignant-female-adnexal-tumor-of-probable-wolffian-origin-case-report-and-literature-review
#8
Shuhui Hong, Jing Cui, Li Li, Joseph Buscema, Casandra Liggins, Wenxin Zheng
Although most female adnexal tumors of probable Wolffian origin have a benign biologic behavior, occasional cases have exhibited malignant potential. We encountered a 50-yr-old woman with an uncommon female adnexal tumors of probable Wolffian origin, which involved bilateral ovaries, invaded the ipsilateral fallopian tube, and extended to the uterine serosa. The initial histopathologic presentation caused significant confusion in pathologic diagnosis. Multiple differential diagnoses including ovarian endometrioid carcinoma, Sertoli cell tumor, and metastasis from nongynecologic organs were considered...
July 11, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28699175/long-term-health-outcomes-of-adults-with-mccune-albright-syndrome
#9
S C Wong, M Zacharin
CONTEXT: McCune Albright Syndrome (MAS) is associated with numerous health problems. Comprehensive long term health problems of adults with MAS are less well defined in the literature. OBJECTIVE: Our objective is to report comprehensive health outcomes of adults with MAS (> 18 years). DESIGN: Retrospective case note review of 16 adults with MAS managed by one clinician. Results expressed as median (range) RESULTS: The study included 16 adults (7 males) with MAS...
July 12, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28699140/effects-of-different-sertoli-cell-types-on-the-maintenance-of-adult-spermatogonial-stem-cells-in-vitro
#10
Maryam Baazm, Farideh Jalali Mashayekhi, Saeid Babaie, Parvindokht Bayat, Cordian Beyer, Adib Zendedel
Spermatongonial stem cells (SSCs) are unique testis cells that are able to proliferate, differentiate, and transmit genetic information to the next generation. However, the effect of different Sertoli cell types on the expression of specific SSC genes is not yet well understood. In this study, we compare the in vitro effect of adult Sertoli cells, embryonic Sertoli cells, and TM4 (a Sertoli cell line) as feeder layers on the expression of SSC genes. SSCs were isolated from the testis of adult male mice and purified by differential plating...
July 11, 2017: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/28694759/using-curcumin-to-prevent-structural-impairments-of-testicles-in-rats-induced-by-sodium-metabisulfite
#11
Reza Mahmoudi, Zahra Honarmand, Saied Karbalay-Doust, Mehrzad Jafari-Barmak, Mohsen Nikseresht, Ali Noorafshan
Sodium metabisulfite (Na-MBS) is a disinfectant and preservative agent. Some organ including testicle would be in danger in the case of Na-MBS consumption. Curcumin (CUR) is the constituent of turmeric with protective properties. The effect of CUR on testicles in rats exposed to Na-MBS evaluated using stereological methods. Sprague-Dawley rats were divided into eight groups. The rats in groups I to VIII received the following respectively: distilled water, CUR (100 mg/kg/day), low (0.7 mg/kg/day: acceptable daily intake), intermediate (7 mg/ kg/day), and high (70 mg/kg/day) doses of Na-MBS, and low, intermediate, and high doses of Na-MBS plus CUR...
2017: EXCLI journal
https://www.readbyqxmd.com/read/28693937/spermatogenic-dynamics-of-the-spiny-rat-kannabateomys-amblyonyx-wagner-1845-rodentia-echimyidae
#12
Verônica A Siman, Raquel S M Godoy, Fernanda C R Dias, Fabiano A Silva, Gisele M L Del Giudice, Marcos L M Gomes, Sérgio L P Matta
Rodents are distributed worldwide, playing important ecological roles regarding preservation of forest areas. Thus, the study of their reproductive biology is a key for conservation initiatives that prevent extinction and/or improve species management. The present study aimed to describe the spermatogenic dynamics of the spiny rat Kannabateomys amblyonyx, an endemic species from Atlantic Rainforest areas, in Brazil. The average body weight was 418.43g with a gonadosomatic index of 0.41%. The testicular parenchyma organization followed the pattern described for other rodent species, with a large amount of seminiferous tubules occupying 93...
June 28, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28693627/morphofunctional-evaluation-of-the-testis-duration-of-spermatogenesis-and-spermatogenic-efficiency-in-the-japanese-fancy-mouse-mus-musculus-molossinus
#13
Guilherme M J Costa, Marcelo C Leal, Luiz R França
Japanese fancy mouse, mini mouse or pet mouse are common names used to refer to strains of mice that present with different colour varieties and coat types. Although many genetic studies that involve spotting phenotype based on the coat have been performed in these mice, there are no reports of quantitative data in the literature regarding testis structure and spermatogenic efficiency. Hence, in this study we researched testis function and spermatogenesis in the adult Japanese fancy mouse. The following values of 68 ± 6 mg and 0...
July 11, 2017: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/28689229/detection-of-candidate-nectin-gene-mutations-in-infertile-men-with-severe-teratospermia
#14
Richard Bronson, Anatoly Mikhailik, John Schwedes, Dimitri Gnatenko, Eli Hatchwell
PURPOSE: Approximately 40% of infertile men have an abnormal semen analysis, resulting from either abnormalities of sperm production (defective spermatogenesis) or sperm shape (defective spermiogenesis). This latter process is dependent upon the function of Sertoli cells, which maintain specialized junctional complexes with germ cells. Nectins, members of the immunoglobulin superfamily, participate in formation of these dynamic complexes. Male mice in which the nectin-2 or nectin-3 gene is knocked out are sterile...
July 8, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28680856/sertoli-cells-are-susceptible-to-zikv-infection-in-mouse-testis
#15
Zi-Yang Sheng, Na Gao, Zhao-Yang Wang, Xiao-Yun Cui, De-Shan Zhou, Dong-Ying Fan, Hui Chen, Pei-Gang Wang, Jing An
Flaviviruses including Dengue virus (DENV), Yellow fever virus (YFV), West Nile virus (WNV), and Japanese encephalitis virus (JEV) are global health problems that caused several serious diseases such as fever, hemorrhagic fever, and encephalitis in the past century. Recently, Zika virus (ZIKV) which spreads from Asia to American and causes millions of infections emerges as a new dangerous member of the genus of Flavivirus. Unlike other well-known flaviviruses, ZIKV can be transmitted sexually and infect testes in murine models...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28676534/expression-patterns-of-henmt1-and-piwil1-in-human-testis-implications-for-transposon-expression
#16
Anna-Lena Hempfling, Shu Ly Lim, David Adelson, Jemma Evans, Anne E O'Connor, Zhipeng Qu, Sabine Kliesch, Wolfgang Weidner, M K O'Bryan, Martin Bergmann
This study aimed to define the expression patterns of HENMT1 and PIWI proteins in human testis and investigate their association with transposon expression, infertility sub-type or development of testicular germ cell tumours (TGCT). Testis biopsies showing normal spermatogenesis were used to identify normal localization patterns of HENMT1 and PIWIL1 by immunolocalisation and RT-PCR after laser microdissection. 222 testis biopsies representing normal spermatogenesis, hypospermatogenesis, spermatogenic arrests, Sertoli cell-only (SCO) and testicular germ cell tumours (TGCT) were analysed by RT-qPCR for expression of HENMT1/PIWIL1/PIWIL2/PIWIL3/PIWIL4 and LINE-1...
July 4, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28669037/in-vitro-study-of-zika-virus-infection-in-boar-semen
#17
Natthanej Luplertlop, San Suwanmanee, Sumate Ampawong, Sompong Vongpunsawad, Yong Poovorawan
Zika virus (ZIKV) is an important arbovirus that is capable of directly infecting neuronal cells. Infection can cause microcephaly in fetuses and Guillain-Barré syndrome in adults. Recent epidemiological studies have shown that ZIKV is sexually transmitted, especially from infected males to uninfected females. This study aimed to investigate the transmission pattern of ZIKV in semen using boar semen. Experiments were performed ex vivo using semen from healthy boar. The samples were infected with ZIKV, and viral RNA was detected and cell morphology was examined at different time points postinfection...
July 1, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28658892/poorly-differentiated-sertoli-leydig-cell-tumour-of-ovary-with-heterologous-elements
#18
Tapan Kumar Sahoo, Tushar Kar, Asaranti Kar, Sasmita Panda
Sertoli-Leydig Cell Tumour (SLCT) is included under sex-cord stromal tumour of testis or ovary. Ovarian pathology is an extremely rare entity constituting less than 0.5% of all ovarian neoplasms. Majority of the cases present at younger age group, i.e., 2(nd) and 3(rd) decade of life. The clinical presentation depends on either mass effect or excess hormone production. Virillization symptoms are the most common presentation and depend upon the quantity of androgen production. Most of the patients have a unilateral mass without extraovarian spread and present at stage-I...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28658785/cystic-sertoli-leydig-cell-tumour-in-a-postmenopausal-woman-with-absent-virilising-symptoms-a-diagnostic-challenge
#19
Vidya Monappa, Saritha M Reddy, Ranjini Kudva, Muralidhar V Pai
A 60-year-old postmenopausal woman, presented with a left ovarian cystic mass with mildly elevated CA125 levels. An intraoperative frozen section showed oedematous ovarian stroma with interspersed large aggregates of spindle shaped stromal cells. Subsequently, the excised specimen was reported as Sertoli-Leydig Cell Tumour (SLCT) of intermediate differentiation. The leydig cells were identified in the imprint smears, but were misinterpreted as luteinized cells. The lack of tubular differentiated cells in frozen section had contributed to the misdiagnosis...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28658561/spermatogenic-cycle-and-steroidogenic-control-of-spermatogenesis-in-mytilus-galloprovincialis-collected-in-the-bay-of-naples
#20
Marina Prisco, Marisa Agnese, Adriano De Marino, Piero Andreuccetti, Luigi Rosati
The aim of the present paper was to study the spermatogenic cycle of Mytilus galloprovincialis collected in the bay of Naples during a whole year and to acquire new insights into the mechanism of control. Knowledge of the Mytilus cycle in this geographic area is of particular interest as, to the best of our knowledge, the male gonad cycle has been hitherto unexplored. Testis organization was evaluated together with the localization of the enzymes 3β-HSD, 17β-HSD and P450-aromatase, which are strictly connected to the synthesis of two key hormones involved in the testis activity: testosterone and 17β-estradiol...
June 28, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
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