keyword
MENU ▼
Read by QxMD icon Read
search

Serum Androgens level

keyword
https://www.readbyqxmd.com/read/28994096/impaired-expression-of-testicular-androgen-receptor-and-collagen-fibers-in-the-testis-of-diabetic-rats-under-haart-the-role-of-hypoxis-hemerocallidea
#1
Onanuga O Ismail, Jegede I Ayoola, Offor Ugochukwu, Ogedengbe O Oluwatosin, Peter I Aniekan, Naidu C S Edwin, Azu O Onyemaechi
INTRODUCTION: Wide spectrum of alterations associated with highly active antiretroviral therapy (HAART) has been reported. The current study aimed at evaluating the role of Hypoxis hemerocallidea (HH) aqueous extract on the testosterone levels, expression of androgen receptors and collagen fibers in the testes of streptozotocin-nicotinamide-induced diabetic rats under HAART regimen. MATERIAL AND METHODS: Sixty two adult male Sprague-Dawley rats (189.0 ± 4.5 g) were divided into eight groups (8 animals in each treatment groups and 6 rats in the control group)...
October 10, 2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28990055/defective-insulin-signaling-and-the-protective-effects-of-dimethyldiguanide-during-follicular-development-in-the-ovaries-of-polycystic-ovary-syndrome
#2
Fan Wang, Shaobing Wang, Zhenghong Zhang, Qingqiang Lin, Yiping Liu, Yijun Xiao, Kaizhuan Xiao, Zhengchao Wang
It is established that the physiological effects of insulin are primarily mediated by the insulin signaling pathway. However, a defective insulin signaling is closely associated with the clinical manifestations of polycystic ovary syndrome (PCOS), which include excess androgen levels, insulin resistance and anovulation, and is involved in the pathophysiology of PCOS at the molecular level. Dimethyldiguanide (DMBG) has been widely employed to alleviate reproduction dysfunction in women with PCOS, however, the exact mechanism of this effect remains unclear...
September 29, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28986172/nicotine-affects-rat-leydig-cell-function-in-vivo-and-vitro-via-down-regulating-some-key-steroidogenic-enzyme-expressions
#3
Xiaoling Guo, Huang Wang, Xiaolong Wu, Xianwu Chen, Yong Chen, Jingjing Guo, Xiaoheng Li, Qingquan Lian, Ren-Shan Ge
Nicotine is consumed largely as a component of cigarettes and has a potential effect on pubertal development of Leydig cells in males. To investigate its effects, 49-day-old male Sprague Dawley rats received intraperitoneal injections of nicotine (0.5 or 1 mg/kg/day) for 2 weeks and immature Leydig cells were isolated from the testes of 35-day-old rats and treated with nicotine (0.05-50 μM). Serum hormones, Leydig cell number and related gene expression levels after in vivo treatment were determined and medium androgen levels were measured and cell cycle, apoptosis, mitochondrial membrane potential (△Ψm), and reactive oxygen species (ROS) of Leydig cells after in vitro treatment were measured...
October 3, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28985536/perfluorooctane-sulfonate-impairs-rat-leydig-cell-development-during-puberty
#4
Lili Li, Xiaoheng Li, Xianwu Chen, Yong Chen, Jianpeng Liu, Fenfen Chen, Fei Ge, Leping Ye, Qingquan Lian, Ren-Shan Ge
Perfluorooctane sulfonate (PFOS) possibly delays male sexual development. However, its effects on pubertal Leydig cell development are unclear. The objective of the present study was to investigate the effects of in vivo PFOS exposure on rat Leydig cell development during puberty. Immature male Sprague Dawley rats were gavaged 5 or 10 mg/kg PFOS on postnatal day 35 for 21 days. Compared to the control (0 mg/kg), PFOS lowered serum testosterone levels without altering luteinizing hormone and follicle-stimulating hormone levels on postnatal day 56...
September 26, 2017: Chemosphere
https://www.readbyqxmd.com/read/28982870/both-high-and-low-serum-total-testosterone-levels-indicate-poor-prognosis-in-patients-with-prostate-cancer
#5
Kouji Izumi, Kazuyoshi Shigehara, Takahiro Nohara, Kazutaka Narimoto, Yoshifumi Kadono, Atsushi Mizokami
BACKGROUND/AIM: Androgen-androgen receptor (AR) signal is known as a powerful driver of prostate cancer progression. We previously reported the limitation of prostate-specific antigen (PSA) at diagnosis as a prognostic biomarker of prostate cancer. Although serum total testosterone (TT) level has been reported as a prognostic biomarker for prostate cancer, its usability is still controversial. We examined the potential and characteristics of TT as a biomarker. PATIENTS AND METHODS: Serum TT levels of patients who underwent prostate biopsy were measured, and prostate cancer-specific survival (PCaSS), overall survival (OS), and the correlation between staging and serum TT level were analyzed...
October 2017: Anticancer Research
https://www.readbyqxmd.com/read/28977603/androgen-action-via-the-androgen-receptor-in-neurons-within-the-brain-positively-regulates-muscle-mass-in-male-mice
#6
Rachel A Davey, Michele V Clarke, Patricia K Russell, Kesha Rana, Jane Seto, Kelly N Roeszler, Jackie M Y How, Ling Yeong Chia, Kathryn North, Jeffrey D Zajac
Although it is well established that exogenous androgens have anabolic effects on skeletal muscle mass in humans and mice, data from muscle-specific androgen receptor (AR) knockout (ARKO) mice indicate that myocytic expression of the AR is dispensable for hind-limb muscle mass accrual in males. To identify possible indirect actions of androgens via the AR in neurons to regulate muscle, we generated neuron-ARKO mice in which the dominant DNA binding-dependent actions of the AR are deleted in neurons of the cortex, forebrain, hypothalamus, and olfactory bulb...
October 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28973382/ziram-delays-pubertal-development-of-rat-leydig-cells
#7
Xiaoling Guo, Songyi Zhou, Yong Chen, Xianwu Chen, Jianpeng Liu, Fei Ge, Qingquan Lian, Xiaomin Chen, Ren-Shan Ge
Ziram [zinc, bis (dimethyldithiocarbamate)] is an agricultural dithiocarbamate fungicide. By virtual screening, we have identified that ziram is a potential endocrine disruptor. To investigate its effects on pubertal development of Leydig cells, 35-day-old male Sprague Dawley rats orally received ziram (2 or 4 mg/kg/day) for 4 weeks and immature Leydig cells isolated from 35-day-old rat testes were treated with ziram (0.5-50 μM in vitro). Serum hormones, Leydig cell number and specific gene or protein expression levels after in vivo treatment were determined and medium androgen levels were measured as well as apoptosis of Leydig cells after in vitro treatment were determined...
September 15, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28971497/circulating-and-intraprostatic-sex-steroid-hormonal-profiles-in-relation-to-male-pattern-baldness-and-chest-hair-density-among-men-diagnosed-with-localized-prostate-cancers
#8
Cindy Ke Zhou, Frank Z Stanczyk, Muhannad Hafi, Carmela C Veneroso, Barlow Lynch, Roni T Falk, Shelley Niwa, Eric Emanuel, Yu-Tang Gao, George P Hemstreet, Ladan Zolfghari, Peter R Carroll, Michael J Manyak, Isabell A Sesterhenn, Paul H Levine, Ann W Hsing, Michael B Cook
BACKGROUND: Prospective cohort studies of circulating sex steroid hormones and prostate cancer risk have not provided a consistent association, despite evidence from animal and clinical studies. However, studies using male pattern baldness as a proxy of early-life or cumulative androgen exposure have reported significant associations with aggressive and fatal prostate cancer risk. Given that androgens underlie the development of patterned hair loss and chest hair, we assessed whether these two dermatological characteristics were associated with circulating and intraprostatic concentrations of sex steroid hormones among men diagnosed with localized prostate cancer...
October 2, 2017: Prostate
https://www.readbyqxmd.com/read/28963671/dimorphic-expression-of-sex-related-genes-in-different-gonadal-development-stages-of-sterlet-acipenser-ruthenus-a-primitive-fish-species
#9
Wei Wang, Hua Zhu, Ying Dong, ZhaoHui Tian, Tian Dong, HongXia Hu, CuiJuan Niu
Molecular mechanism of sex determination and differentiation of sturgeon, a primitive fish species, is extraordinarily important due to the valuable caviar; however, it is still poorly known. The present work aimed to identify the major genes involved in regulating gonadal development of sterlet, a small species of sturgeon, from 13 candidate genes which have been shown to relate to gonadal differentiation and development in other teleost fish. The sex and gonadal development of sterlets were determined by histological observation and levels of sex steroids testosterone (T), 11-ketotestosterone (11-KT), and 17β-estradiol (E2) in serum...
September 29, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28954982/androgen-replacement-therapy-for-cancer-related-symptoms-in-male-advanced-cancer-patients-study-protocol-for-a-randomised-prospective-trial-artform-study
#10
Kouji Izumi, Kazuyoshi Shigehara, Takahiro Nohara, Kazutaka Narimoto, Yoshifumi Kadono, Shigeki Nanjo, Tadaaki Yamada, Koushiro Ohtsubo, Seiji Yano, Atsushi Mizokami
Recent studies reveal that hypogonadism with low serum androgen levels is associated with advanced cancer and induction of most cancer-related symptoms. We designed an ARTFORM study to evaluate the efficacy of androgen replacement therapy in male advanced cancer patients. The ARTFORM study is an investigator-initiated, randomised controlled trial comparing intramuscle injection of testosterone enanthate with non-administration in male advanced cancer patients with non-curative locally advanced or metastatic lesions...
2017: Journal of Medical Investigation: JMI
https://www.readbyqxmd.com/read/28953224/cynanchum-wilfordii-ameliorates-testosterone-induced-benign-prostatic-hyperplasia-by-regulating-5%C3%AE-reductase-and-androgen-receptor-activities-in-a-rat-model
#11
Gyuok Lee, Jawon Shin, Hakjoon Choi, Ara Jo, SangO Pan, Donghyuck Bae, Yongwook Lee, Chulyung Choi
Benign prostatic hyperplasia (BPH) is characterized by uncontrolled proliferation of the prostate gland. Cynanchum wilfordii has been reported to improve sexual behavior in male rats. In this study, we investigated the protective effect of an aqueous extract of C. wilfordii (CWW) against BPH development in a testosterone-induced BPH rat model. The rats were divided into the following six groups: sham/vehicle; BPH/vehicle; BPH/finasteride; and three CWW doses (50, 100, and 200 mg/kg). After a 4-week treatment with CWW, the rats were euthanized at scheduled times, and their prostates were weighed, followed by a histopathological examination...
September 27, 2017: Nutrients
https://www.readbyqxmd.com/read/28943529/quisqualis-indica-improves-benign-prostatic-hyperplasia-by-regulating-prostate-cell-proliferation-and-apoptosis
#12
Charith Ub Wijerathne, Hee-Seon Park, Hye-Yun Jeong, Ji-Won Song, Og-Sung Moon, Young-Won Seo, Young-Suk Won, Hwa-Young Son, Jong-Hwan Lim, Sung-Hum Yeon, Hyo-Jung Kwun
Quisqualis indica (QI) has been used for treating disorders such as stomach pain, constipation, and digestion problem. This study was aimed to evaluate the therapeutic efficacy of QI extract on treating benign prostatic hyperplasia (BPH) in LNCaP human prostate cancer cell line and a testosterone-induced BPH rat model. LNCaP cells were treated with QI plus testosterone propionate (TP), and androgen receptor (AR) and prostate specific antigen (PSA) expression levels were assessed by Western blotting. To induce BPH, the rats were subjected to a daily subcutaneous injection of TP (3 mg/kg) for 4 wk...
September 22, 2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28941963/effects-of-androgen-deprivation-therapy-on-pain-perception-quality-of-life-and-depression-in-men-with-prostate-cancer
#13
Thiago Gagliano-Jucá, Thomas G Travison, Paul L Nguyen, Philip W Kantoff, Mary-Ellen Taplin, Adam S Kibel, Robert Manley, Kathleen Hally, Richelle Bearup, Yusnie M Beleva, Grace Huang, Robert R Edwards, Shehzad Basaria
CONTEXT: Previous animal and human research suggests that testosterone has anti-nociceptive properties. Castration in male rodents increases pain perception which is reversed by testosterone replacement. Pain perception also improves in hypogonadal men with testosterone therapy. However, it remains unclear whether androgen deprivation therapy (ADT) in men with prostate cancer (PCa) is associated with an increase in pain perception. METHODS: Thirty-seven men with PCa about to undergo ADT with leuprolide acetate (ADT group) were followed prospectively for 6 months to evaluate changes in clinical and experimental pain...
September 20, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28941922/the-association-of-polymorphisms-in-the-gene-encoding-gonadotropin-releasing-hormone-with-serum-testosterone-level-during-androgen-deprivation-therapy-and-prognosis-in-metastatic-prostate-cancer
#14
Masaki Shiota, Naohiro Fujimoto, Ario Takeuchi, Eiji Kashiwagi, Takashi Dejima, Junichi Inokuchi, Katsunori Tatsugami, Akira Yokomizo, Shunichi Kajioka, Takeshi Uchiumi, Masatoshi Eto
PURPOSE: Serum testosterone suppression during androgen-deprivation therapy (ADT) has been reported to affect ADT efficacy. However, the factors impacting hormonal variations during ADT remain unclear. Therefore, in this study, we investigated the significance of missense polymorphisms in the gene encoding gonadotropin releasing hormone (GNRH) in men treated with primary ADT for metastatic prostate cancer. MATERIALS AND METHODS: This study included 80 Japanese patients with metastatic prostate cancer whose serum testosterone levels during ADT were available...
September 20, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28935589/early-postnatal-exposure-to-endosulfan-interferes-with-the-normal-development-of-the-male-rat-mammary-gland
#15
Gabriela A Altamirano, Melisa B Delconte, Ayelen L Gomez, Ramiro Alarcón, Verónica L Bosquiazzo, Enrique H Luque, Mónica Muñoz-de-Toro, Laura Kass
Our aim was to evaluate whether postnatal exposure to endosulfan (ENDO) modifies mammary gland (MG) development in pre- and post-pubertal male rats. From postnatal day 1 (PND1) to PND7, male rats were injected subcutaneously every 48h with either corn oil (vehicle) or 600μg ENDO/kg.bw. On PND21 and PND60, MG and blood samples were collected. Estradiol (E2) and testosterone (T) serum levels, MG histology, collagen fiber organization, proliferation index, and estrogen (ESR1) and androgen receptor (AR) expressions were evaluated...
September 19, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28931575/case-report-of-clitoral-hypertrophy-in-2-extremely-premature-girls-with-an-ovarian-cyst
#16
Anne-Laure Nerré, Pierre Bétrémieux, Sylvie Nivot-Adamiak
Neonatal clitoromegaly is mainly attributed to in utero androgen exposure secondary to congenital adrenal hyperplasia. We report on 2 extremely premature girls with clitoromegaly, increased androgen levels, no salt wasting syndrome, and ovarian cyst. In case 1, the cyst liquid was aspired during ovarian hernia surgery and revealed high androgen levels. After aspiration, serum androgen levels decreased, as did clitoral size. In case 2, an ovarian cyst was seen on pelvic ultrasound. Aspiration was not indicated...
October 2017: Pediatrics
https://www.readbyqxmd.com/read/28930493/effect-of-comorbidity-on-prostate-cancer-specific-mortality-a-prospective-observational-study
#17
Prabhakar Rajan, Prasanna Sooriakumaran, Tommy Nyberg, Olof Akre, Stefan Carlsson, Lars Egevad, Gunnar Steineck, N Peter Wiklund
Purpose To determine the effect of comorbidity on prostate cancer (PCa)-specific mortality across treatment types. Patients and Methods These are the results of a population-based observational study in Sweden from 1998 to 2012 of 118,543 men who were diagnosed with PCa with a median follow-up of 8.3 years (interquartile range, 5.2 to 11.5 years) until death from PCa or other causes. Patients were categorized by patient characteristics (marital status, educational level) and tumor characteristics (serum prostate-specific antigen, tumor grade and clinical stage) and by treatment type (radical prostatectomy, radical radiotherapy, androgen deprivation therapy, and watchful waiting)...
September 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28929436/endogenous-sex-hormone-exposure-and-repetitive-element-dna-methylation-in-healthy-postmenopausal-women
#18
Devon J Boyne, Christine M Friedenreich, John B McIntyre, Frank Z Stanczyk, Kerry S Courneya, Will D King
PURPOSE: Epigenetic mechanisms may help to explain the complex and heterogeneous relation between sex hormones and cancer. Few studies have investigated the effects of sex hormones on epigenetic markers related to cancer risk such as levels of methylation within repetitive DNA elements. Our objective was to describe the association between endogenous sex hormone exposure and levels of LINE-1 and Alu methylation in healthy postmenopausal women. METHODS: We nested a cross-sectional study within the Alberta Physical Activity and Breast Cancer Prevention Trial (2003-2006)...
September 19, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28924479/marked-hyperandrogenicity-in-a-60-year-old-woman
#19
Khaled Aljenaee, Sulaiman Ali, Seong Keat Cheah, Owen MacEneaney, Niall Mulligan, Neil Hickey, Tommy Kyaw Tun, Seamus Sreenan, John H McDermott
Markedly elevated androgen levels can lead to clinical virilization in females. Clinical features of virilization in a female patient, in association with biochemical hyperandrogenism, should prompt a search for an androgen-producing tumor, especially of ovarian or adrenal origin. We herein report the case of a 60-year-old woman of Pakistani origin who presented with the incidental finding of male pattern baldness and hirsutism. Her serum testosterone level was markedly elevated at 21 nmol/L (normal range: 0...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/28924059/pygopus2-expression-in-prostatic-adenocarcinoma-is-a-potential-risk-stratification-marker-for-psa-progression-following-radical-prostatectomy
#20
Kenneth R Kao, Paul Popadiuk, John Thoms, Satoko Aoki, Shahgul Anwar, Emily Fitzgerald, Phillip Andrews, Kim Voisey, Luis Gai, Satya Challa, Zhijian He, Paola Gonzales-Aguirre, Andrea Simmonds, Catherine Popadiuk
AIMS: Prostate cancer (PrCa) is the most frequently diagnosed non-cutaneous cancer in men. Without clear pathological indicators of disease trajectory at diagnosis, management of PrCa is challenging, given its wide-ranging manifestation from indolent to highly aggressive disease. This study examines the role in PrCa of the Pygopus (PYGO)2 chromatin effector protein as a risk stratification marker in PrCa. METHODS: RNA expression was performed in PrCa cell lines using Northern and RT-PCR analyses...
September 18, 2017: Journal of Clinical Pathology
keyword
keyword
101327
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"