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https://www.readbyqxmd.com/read/28432860/high-ki-67-expression-is-associated-with-prolactin-secreting-pituitary-adenomas
#1
Bogdan Bălinişteanu, Anca Maria Cîmpean, Amalia Raluca Ceauşu, Ana Silvia Corlan, Eugen Melnic, Marius Raica
Pituitary adenomas represent the third most common primary intracranial tumor in neurosurgical practice. To understand the biological behaviour of the pituitary adenomas previous studies have determined the tumor proliferation rate using monoclonal antibodies targeted against the Ki-67 antigen. The aim of this study was to correlate the Ki-67 index with hormonal profiles of pituitary adenomas. The study included 50 pituitary adenoma cases. For histopathologic evaluation, the sections were stained with routine hematoxylin and eosin method...
April 22, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28432647/the-gender-attention-observational-study-gender-and-hormonal-status-differences-in-the-incidence-of-adverse-events-during-cyclosporine-treatment-in-psoriatic-patients
#2
Delia Colombo, Giuseppe Banfi, Nicoletta Cassano, Alessandra Graziottin, Gino Antonio Vena, Giovanni Gualberto Fiori, Emanuela Zagni, Luca Stingeni, Sergio Chimenti, Enzo Berardesca, Giuseppe Micali, Giuseppe Albertini, Clara De Simone, Gilberto Bellia
INTRODUCTION: Female sex has been shown to be a risk factor for the development of adverse drug reactions; however, this has not been studied for cyclosporine (CsA). The aim of this study was to investigate, in Italian dermatological practice, the influence of gender and menopause and related hormones on the incidence of adverse events (AEs) during CsA treatment in psoriatic patients. METHODS: Multicenter, prospective, observational study conducted from May 2011 to June 2013...
April 21, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28432270/discriminating-between-virilizing-ovary-tumors-and-ovary-hyperthecosis-in-postmenopausal-women-clinical-data-hormonal-profiles-and-image-studies
#3
Viviane Dos Reis Vieira Yance, José Antonio Miguel Marcondes, Michelle Patrocíneo Rocha, Cristiano Roberto Grimaldi Barcellos, Wagner Silva Dantas, Ana Flavia Assis Avila, Ronaldo Hueb Baroni, Filomena Marino Carvalho, Sylvia Asaka Yamashita Hayashida, Berenice Bilharinho Mendonça, Sorahia Domenice
The presence of virilizing signs associated with high serum androgen levels in postmenopausal women is rare. Virilizing ovarian tumors (VOTs) and ovarian stromal hyperthecosis (OH) are the most common etiologies in virilized postmenopausal women. The differential diagnosis between these two conditions is often difficult. OBJECTIVE: To evaluate the contribution of clinical features, hormonal profiles and radiological studies to the differential diagnosis of VOT and OH. DESIGN: A retrospective study...
April 21, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28431577/dichloroacetic-acid-induced-testicular-toxicity-in-male-rats-and-the-protective-effect-of-date-fruit-extract
#4
Amira El Arem, Lamia Lahouar, Emna Behija Saafi, Amira Thouri, Fatma Ghrairi, Zohra Houas, Fadoua Neffati, Lotfi Achour
BACKGROUND: The present study was designed to investigate the protective effect of aqueous date extract (ADE) against the dichloroacetic acid (DCA)-induced testicular injury in rats. METHODS: Forty-eight male Wistar rats were randomly divided into six groups of eight: group I served as the control; group II was given ADE (4 ml/kg) by gavage; groups III and IV received DCA at 0.5 and 2 g/L drinking water, respectively; and groups V and VI received DCA at 0.5 and 2 g/L drinking water, respectively, before ADE administration...
April 22, 2017: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28428940/factors-influencing-sperm-retrieval-following-testicular-sperm-extraction-in-nonobstructive-azoospermia-patients
#5
Peyman Salehi, Marzieh Derakhshan-Horeh, Zakiye Nadeali, Majid Hosseinzadeh, Erfan Sadeghi, Mohammad Hossein Izadpanahi, Mansour Salehi
OBJECTIVE: Azoospermia owing to testicular disorders is the most severe manifestation of male infertility. The main concern for patients with nonobstructive azoospermia (NOA) is the probability of successful sperm retrieval following testicular sperm extraction (TESE). Therefore, the goal of this study was to determine predictive factors correlated with sperm retrieval. METHODS: We assessed the testicular histopathological patterns, the choice of TESE surgical procedure, hormone levels, and chromosomal abnormalities in patients with NOA (n=170)...
March 2017: Clinical and Experimental Reproductive Medicine
https://www.readbyqxmd.com/read/28428044/transcriptional-co-activator-yap-regulates-camp-signaling-in-sertoli-cells
#6
Souvik Sen Sharma, Subeer S Majumdar
FSH mediated cyclic AMP (cAMP) signaling is crucial for function of testicular Sertoli cells (Sc) during puberty. Yes-kinase Associated Protein (YAP), a transcriptional co-activator, regulates cell proliferation and differentiation. However, its role in testicular function is not known. In present study, we have identified YAP as an important regulator of cAMP signaling in Sc, in-vitro. Verteporfin, a YAP-inhibitor, down regulated the expression of cAMP responsive genes necessary for spermatogenesis in Sc. Action of forskolin, which acts via cAMP, was also antagonized by verteporfin, limiting expression of these genes...
April 17, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28423889/polymorphism-of-bola-drb3-gene-and-its-association-with-embryo-development-after-in-vitro-fertilization-in-slovak-spotted-x-holstein-fresian-crossbred-cattle
#7
Dominika Kułaj, Joanna Pokorska, Alexander Makarevič, Lucia Olexikova, Joanna Makulska, Peter Chrenek
Objective: The aim of the present research was to verify hypothesis about the association between polymorphism of Bola-DRB3 gene and embryo cleavage after in vitro fertilization in Slovak Spotted x Holstein-Fresian crossbred cattle. Methods: Bovine oocytes recovered from bovine ovaries at slaughtering were matured in E199 medium with 10% FCS and 1IU FSH and LH and fertilized in vitro with sperm of Holstein-Fresian bull during 20h. Presumptive zygotes were cultured in ISM1 culture medium for three days, afterwards the embryos were evaluated and selected into two groups: 1) cleavage (2-, 4-, 6- or 8- cell stage) and 2) undeveloped embryos (no cell cleavage)...
March 25, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28423663/a-novel-total-pituitary-hormone-index-as-an-indicator-of-postoperative-pituitary-function-in-patients-undergoing-resection-of-pituitary-adenomas
#8
Shousen Wang, Biao Li, Chenyu Ding, Deyong Xiao, Liangfeng Wei
The purpose of this study was to investigate the differences between pre- and postoperative pituitary hormone levels in patients undergoing surgical resection of pituitary adenoma and to identify factors associated with preoperative hypopituitarism.Data from 81 patients with histologically confirmed functioning and non-functioning pituitary adenomas (NFPA) who underwent transsphenoidal resection from January 2011 to December 2013 were retrospectively analyzed. Logistic regression was applied to analyze factors associated with preoperative hypopituitarism...
March 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423475/primary-lymphocytic-hypophysitis-clinical-characteristics-and-treatment-of-50-cases-in-a-single-centre-in-china-over-18-years
#9
Shuchang Wang, Linjie Wang, Yong Yao, Feng Feng, Hongbo Yang, Zhiyong Liang, Kan Deng, Hui You, Jian Sun, Bing Xing, Zimeng Jin, Renzhi Wang, Hui Pan, Huijuan Zhu
OBJECTIVE: Primary lymphocytic hypophysitis (LYH) is rare and it is often evaluated in a small case series. This study aimed to describe the diagnosis and treatment of primary LYH in a larger cohort. DESIGN: A retrospective study of the diagnosis and treatment of primary LYH was conducted at Peking Union Medical College Hospital from 1999 to 2016. PATIENTS: Fifty patients (28 histologically-diagnosed and 22 clinically-diagnosed) were eligible for inclusion...
April 19, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28421902/the-role-of-ovarian-reserve-markers-in-prediction-of-clinical-pregnancy
#10
Ali G Zebitay, Orkun Cetin, Fatma F Verit, Seda Keskin, M Nafi Sakar, Sercin Karahuseyinoglu, Gulsah Ilhan, Sezai Sahmay
To evaluate the role of ovarian reserve markers in the prediction of clinical pregnancy and embryo transfer accomplishment among poor responder IVF applicants. 304 female poor responder IVF applicants were included in this prospective cohort study conducted at the IVF-unit. Antral follicle count, FSH, LH, E2, AMH and IVF outcomes were compared in pregnant and non-pregnant groups as well as in ET vs. non-ET groups. The number of retrieved oocytes was significantly correlated positively with AMH and AFC, and negatively with FSH and age...
May 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28420820/high-insulin-impaired-ovarian-function-in-early-pregnant-mice-and-the-role-of-autophagy-in-this-process
#11
Yan Su, Juan Wu, Junlin He, Xueqing Liu, Xuemei Chen, Yubin Ding, Chen Zhang, Wenqi Chen, Yingxiong Wang, Rufei Gao
Metabolic disorders, such as PCOS (polycystic ovarian syndrome) and T2DM (type 2 diabetes mellitus), are associated with menstrual dysfunction, anovulation, infertility, and early pregnancy loss. Ovarian dysfunction is not only related to low pregnancy rates but also to the increased risk of miscarriage. Women with PCOS or T2DM, characterized by hyperinsulinemia, commonly experience ovarian dysfunction. In this study, we first explored whether high insulin levels directly affected ovarian functioning during embryo implantation...
April 18, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28420799/neonatal-hypothyroidism-does-not-increase-sertoli-cell-proliferation-in-inos-mice
#12
Nathalia de Lima E Martins Lara, Luiz Renato de França
Sertoli cell (SC) proliferation in mice occurs until two weeks after birth and is mainly regulated by FSH and thyroid hormones. Previous studies have shown that transient neonatal hypothyroidism in laboratory rodents is able to extend SC mitotic activity, leading ultimately to higher testis size and daily sperm production (DSP) in adult animals. Moreover, we have shown that due to higher SC proliferation and lower germ cell apoptosis, iNOS deficiency in mice also results in higher testis size and DSP. Although the cell size was smaller, the Leydig cells (LC) number per testis also significantly increased in iNOS(-/-) mice...
April 18, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28420480/comparative-analysis-of-granulosa-cell-gene-expression-in-association-with-oocyte-competence-in-fsh-stimulated-holstein-cows
#13
David A Landry, Chloé Fortin, Anne-Marie Bellefleur, Rémi Labrecque, François-Xavier Grand, Christian Vigneault, Patrick Blondin, Marc-André Sirard
Ovarian stimulation with exogenous FSH followed by FSH withdrawal or 'coasting' is an effective means of increasing the number of oocytes obtainable for the in vitro production of cattle embryos. However, the quality of the oocytes thus obtained varies considerably from one cow to the next. The aim of the present study was to gain a better understanding of the follicular conditions associated with low oocyte developmental competence. Granulosa cells from 94 Holstein cows in a commercial embryo production facility were collected following ovarian stimulation and coasting...
April 19, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28419409/anti-m%C3%A3-llerian-hormone-exhibits-a-great-variation-in-infertile-women-with-different-ovarian-reserve-patterns
#14
Umit Gorkem, Ferit Kerim Kucukler, Cihan Togrul, Tayfun Gungor
BACKGROUND: Several conflicting studies with results on the biological variability of serum anti-Müllerian hormone (AMH) levels have been reported. Most of the studies have not focused on whether the level of AMH fluctuations shows variability by a baseline ovarian follicular reserve. AIM: To reveal whether intracyclic variation in AMH levels occurs among women with adequate, high and diminished ovarian reserve patterns. STUDY DESIGN: In this prospective cross-sectional study, 171 infertile women between the ages of 18 and 42 years were recruited...
April 17, 2017: Australian & New Zealand Journal of Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/28419133/reproductive-toxicity-after-levetiracetam-administration-in-male-rats-evidence-for-role-of-hormonal-status-and-oxidative-stress
#15
Merve Baysal, Sinem Ilgin, Gozde Kilic, Volkan Kilic, Seyda Ucarcan, Ozlem Atli
Levetiracetam (LEV) is an antiepileptic drug commonly used in the treatment of epilepsy because of its excellent safety profile in all age groups. It is remarkable that there are no studies evaluating the toxic effects of this drug on the male reproductive system, as it is commonly used in male patients of reproductive age. From this point of view, our aim was to evaluate the possible toxic effects of LEV on the male reproductive system. Therefore, LEV was administered to male rats orally at 50, 150, and 300 mg/kg for 70 consecutive days...
2017: PloS One
https://www.readbyqxmd.com/read/28418929/plurihormonal-cells-of-normal-anterior-pituitary-facts-and-conclusions
#16
Lubov B Mitrofanova, Petr V Konovalov, Julia S Krylova, Victoria O Polyakova, Igor M Kvetnoy
INTRODUCTION: plurihormonality of pituitary adenomas is an ability of adenoma cells to produce more than one hormone. After the immunohistochemical analysis had become a routine part of the morphological study, a great number of adenomas appeared to be multihormonal in actual practice. We hypothesize that the same cells of a normal pituitary gland releases several hormones simultaneously. OBJECTIVE: To analyse a possible co-expression of hormones by the cells of the normal anterior pituitary of adult humans in autopsy material...
March 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28413915/oxidative-stress-status-in-congenital-hypogonadism-an-appraisal
#17
C Haymana, A Aydoğdu, B Soykut, O Erdem, T Ibrahimov, M Dinc, C Meric, Y Basaran, A Sonmez, O Azal
Patients with hypogonadism are at increased risk of cardiac and metabolic diseases. However, the pathogenesis of increased cardiometabolic risk in patients with hypogonadism is not clear. Oxidative stress plays an important role in the pathogenesis of cardiometabolic diseases. This study aimed to investigate possible differences in oxidative stress conditions between patients with hypogonadism and healthy controls. In this study, 38 male patients with congenital hypogonadotrophic hypogonadism (CHH) (mean age: 21...
April 16, 2017: Toxicology Mechanisms and Methods
https://www.readbyqxmd.com/read/28412857/prevalence-of-diminished-ovarian-reserve-in-chinese-women-with-polycystic-ovary-syndrome-and-sensitive-diagnostic-parameters
#18
Jing Jin, Xiangyan Ruan, Lin Hua, Xuanxuan Tian, Yanglu Li, Lijuan Wang, Alfred O Mueck
OBJECTIVES: To assess the prevalence of diminished ovarian reserve (DOR) in patients with polycystic ovary syndrome (PCOS) in China, and to search for sensitive diagnostic parameters. METHODS: Three hundred and thirty eight PCOS women aged 20-39 years were recruited. Basic characteristics, follicle stimulating hormone (FSH), luteinizing hormone (LH), estradiol (E2), testosterone and anti-Müllerian hormone (AMH) were measured. The best indices to diagnose PCOS with DOR were assessed...
April 17, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28410943/efficacy-of-single-stage-and-two-stage-fowler-stephens-laparoscopic-orchidopexy-in-the-treatment-of-intraabdominal-high-testis
#19
Chang-Yuan Wang, Yang Wang, Xiao-Hua Chen, Xiao-Yu Wei, Feng Chen, Min Zhong
BACKGROUND/OBJECTIVE: To compare the curative effect of single-stage and two-stage Fowler-Stephens (F-S) laparoscopic orchidopexy for intraabdominal high testis and explore the appropriate surgical approach. METHODS: We performed a prospective analysis of the clinical data of 28 patients who underwent F-S laparoscopic orchidopexy for intraabdominal high testis in our department from May 2012 to April 2015, including 15 cases of the single-stage F-S operation and 13 cases of the two-stage F-S operation...
April 12, 2017: Asian Journal of Surgery
https://www.readbyqxmd.com/read/28410456/use-of-bone-morphogenetic-protein-15-polymorphisms-to-predict-ovarian-stimulation-outcomes-in-infertile-brazilian-women
#20
Carla Peluso, Cecilia Goldman, Viviane Cavalcanti, Guilherme Gastaldo, Camila Martins Trevisan, Denise Maria Christofolini, Caio Parente Barbosa, Bianca Bianco
AIMS: Polymorphisms in the gene encoding bone morphogenetic protein 15 (BMP15) can result in inhibited secretion or lowered bioactivity of the BMP15 protein. BMP15 levels are associated with follicle-stimulating hormone receptor (FSHR) action on granulosa cells, wherein FSHR increases the sensitivity of ovarian follicles to follicle-stimulating hormone (FSH). In this study we evaluated the BMP15 polymorphisms A905 > G/rs3897937, C901 > T/rs17003221, and C-9 > G/rs3810682 in infertile Brazilian women in terms of anti-Mullerian hormone (AMH), FSH, and estradiol serum levels, as well as controlled ovarian hyperstimulation response and assisted reproduction outcomes...
April 14, 2017: Genetic Testing and Molecular Biomarkers
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