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Vitamin AND D AND Testosterone

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https://www.readbyqxmd.com/read/30229999/evaluation-of-vitamin-d-status-and-its-correlation-with-gonadal-function-in-children-at-mini-puberty
#1
Suna Kılınç, Enver Atay, Ömer Ceran, Zeynep Atay
CONTEXT: The effects of Vitamin D on reproductive function in adults have gained interest. Studies have demonstrated some associations. Hypothalamic-pituitary-gonadal axis is activated during the first 6 months of life, called as mini-puberty. This HPG activation is important for future gonadal function. There is no data regarding the association of gonadal hormones and 25(OH)D levels at mini-puberty. Demonstration of any association would form the basis for studies that will search for the effects of 25(OH)D on gonadal hormones at mini-puberty...
September 19, 2018: Clinical Endocrinology
https://www.readbyqxmd.com/read/30187004/discontinuation-of-carbamazepine-due-to-concerns-of-long-term-consequences-of-enzyme-induction
#2
Jussi Mäkinen, Sirpa Rainesalo, Jani Raitanen, Jukka Saarinen, Satu Sandell, Jukka Peltola
Objective: Treatment with carbamazepine (CBZ), a potent enzyme inducer, is known to affect the lipid profile, steroid, and vitamin D metabolism. Consequently, it has been postulated that patients on CBZ should be switched to noninducing antiepileptic drugs (AEDs). However, little is known about the seizure outcome following a CBZ switch in seizure-free patients. We aimed to address this issue using a controlled observational study design. Methods: Fifty-eight patients taking CBZ for focal epilepsy were assessed for discontinuing CBZ treatment due to concerns of long-term adverse-effects; 34 discontinued its therapy and 24 continued with CBZ...
September 2018: Epilepsia open
https://www.readbyqxmd.com/read/30173440/-antagonistic-effect-of-vitamin-e-on-di-2-ethylhexyl-phthalate-induced-reproductive-toxicity-in-male-rats
#3
Chao-Yun Wang, Juan-Juan Zhang, Peng Duan
Objective: To explore the antagonistic effect of vitamin E (VE) on male reproductive toxicity induced by di-2-ethylhexyl phthalate (DEHP) in pubertal SD rats and its underlying mechanisms. METHODS: Thirty 5-week-old male SD rats were randomly divided into five groups of equal number, corn oil control, low-dose (10 mg/kg/d), medium-dose (100 mg/kg/d) and high-dose DEHP exposure (500 mg/kg/d), and VE intervention (high-dose DEHP + VE [100 mg/kg/d]), and treated respectively for 30 successive days...
July 2018: Zhonghua Nan Ke Xue, National Journal of Andrology
https://www.readbyqxmd.com/read/30149461/bone-health-and-endocrine-care-of-boys-with-duchenne-muscular-dystrophy-data-from-the-md-starnet
#4
David R Weber, Shiny Thomas, Stephen W Erickson, Deborah Fox, Joyce Oleszek, Shree Pandya, Yedatore Venkatesh, Christina Westfield, Emma Ciafaloni
BACKGROUND: Patients with Duchenne muscular dystrophy (DMD) are at high risk of endocrine and bone health complications resulting from the high glucocorticoid (GC) doses used to treat this condition. There are limited data characterizing the clinical management of these complications. OBJECTIVE: To determine the frequency of bone health screening, endocrinologist evaluation, and use of endocrine and bone health pharmacotherapy in the clinical care of males with DMD...
August 20, 2018: Journal of Neuromuscular Diseases
https://www.readbyqxmd.com/read/30074968/monitoring-blood-biomarkers-and-training-load-throughout-a-collegiate-soccer-season
#5
Robert A Huggins, Andrea R Fortunati, Ryan M Curtis, David P Looney, Chris A West, Elaine C Lee, Maren S Fragala, Mathew L Hall, Douglas J Casa
Huggins, RA, Fortunati, AR, Curtis, RM, Looney, DP, West, CA, Lee, EC, Fragala, MS, Hall, ML, and Casa, DJ. Monitoring blood biomarkers and training load throughout a collegiate soccer season. J Strength Cond Res XX(X): 000-000, 2018-This observational study aimed to characterize the responses of a comprehensive panel of biomarkers, observed ranges, training load (TL) metrics, and performance throughout the collegiate soccer season (August-November). Biomarkers (n = 92) were collected before the start of pre-season (PS), in-season weeks (W)1, W4, W8, and W12 in NCAA Division I male soccer players (n = 20, mean ± SD; age = 21 ± 1 years, height = 180 ± 6 cm, body mass = 78...
August 2, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/30047068/pharmacological-interventions-to-improve-muscle-mass-muscle-strength-and-physical-performance-in-older-people-an-umbrella-review-of-systematic-reviews-and-meta-analyses
#6
REVIEW
Anton De Spiegeleer, David Beckwée, Ivan Bautmans, Mirko Petrovic
BACKGROUND: Sarcopenia, defined as the pathological decline in muscle mass, muscle strength and physical performance with aging, has become one of the geriatric giants because of its increasing prevalence and devastating health effects. The Belgian Society of Gerontology and Geriatrics (BSGG) is currently developing evidence-based guidelines for the prevention and therapy of sarcopenia for use in broad clinical practice. This systematic review summarizes the results of the Working Group on Pharmacology...
August 2018: Drugs & Aging
https://www.readbyqxmd.com/read/30034922/interfacing-complex-laboratory-instruments-during-a-change-to-epic-beaker
#7
Gregory David Scott, Cary Schrandt, Chandler C Ho, Michael C Chung, Daniel Zhou, Run Zhang Shi
Background: Implementing a laboratory-developed test sometimes requires incorporating an unconventional device into the laboratory information system (LIS) and customizing an interface to reduce transcription error and improve turnaround time. Such a custom interface is a necessity for complicated high-volume tests such as 25-OH Vitamin D by liquid chromatography-tandem mass spectrometry (LC-MS/MS) when there is no vendor-or LIS-supplied interface available. Here, we describe our work and experience interfacing a API 5000 LC-MS/MS instrument with our newly implemented LIS, Epic Beaker, using a combination of in-house scripting software and a middleware vendor, Data Innovations...
2018: Journal of Pathology Informatics
https://www.readbyqxmd.com/read/30019416/independent-association-of-serum-vitamin-d-with-anti-mullerian-hormone-levels-in-women-with-polycystic-ovary-syndrome
#8
Ho Yan Queenie Wong, Hang Wun Raymond Li, Karen Siu Ling Lam, Sidney Tam, Chi Chung Shek, Chi Yan Vivian Lee, William Shu Biu Yeung, Pak Chung Ho, Ernest Hung Yu Ng
OBJECTIVE: This study aimed at investigating the association of serum vitamin D (25(OH)D) and anti-Mullerian hormone (AMH) levels in women with polycystic ovary syndrome (PCOS) as well as non-PCOS healthy ovulatory women and the possible confounding effects of adiposity and androgen. METHOD: This was a cross-sectional study conducted on serum samples collected from 451 women diagnosed with PCOS as well as 244 age-matched healthy ovulatory women in a tertiary gynaecology out-patient clinic and a family planning clinic...
July 18, 2018: Clinical Endocrinology
https://www.readbyqxmd.com/read/29982837/improvements-in-semen-quality-sperm-fatty-acids-and-reproductive-performance-in-aged-ross-breeder-roosters-fed-a-diet-supplemented-with-a-moderate-ratio-of-n-3-n-6-fatty-acids
#9
Reza Safari Asl, Farid Shariatmadari, Mohsen Sharafi, Mohammad Amir Karimi Torshizi, Abdolhossein Shahverdi
The purpose of this study was to evaluate the effects of dietary n-3: n-6 fatty acid (FA) ratios and vitamin E (vitE) on the semen quality, FA composition, hormonal responses, and reproductive performance of aged roosters. Thirty-six Ross broiler breeder roosters were assigned to a 3 × 2 factorial design with 3 n-3: n-6 FA ratios (0.09, 0.16, and 0.23) based on the inclusion of 3 oil sources (canola, canola/fish, and fish) and 2 vitE levels (0 and 200 mg/kg). During the 60 d of treatment, semen parameters, FAs composition of sperm, lipid peroxidation, and hormonal responses were monitored...
July 3, 2018: Poultry Science
https://www.readbyqxmd.com/read/29942920/suspected-testosterone-producing-tumor-in-a-patient-taking-biotin-supplements
#10
Heather M Stieglitz, Nichole Korpi-Steiner, Brooke Katzman, Jennifer E Mersereau, Maya Styner
A perimenopausal woman presented with palpitations, hirsutism, and inability to lose weight. Laboratory tests revealed an unusual endocrine hormonal profile including pituitary hormones (TSH, ACTH, and prolactin) below reference intervals and gonadal (testosterone) and adrenal (cortisol) hormones above reference intervals. Ultimately, after a comprehensive workup including a scheduled surgical procedure, abnormal laboratories were determined due to biotin interference. Biotin (vitamin B7) is a water-soluble vitamin and essential cofactor for the metabolism of fatty acids, glucose, and amino acids...
June 1, 2018: Journal of the Endocrine Society
https://www.readbyqxmd.com/read/29927841/association-between-sex-hormones-and-ambulatory-blood-pressure
#11
Monik C Jiménez, Lu Wang, Julie E Buring, JoAnn E Manson, John P Forman, Howard D Sesso
INTRODUCTION: Higher levels of total testosterone and lower levels of sex hormone-binding globulin (SHBG) have been associated with increased blood pressure (BP) in women with an inverse association between total testosterone and BP among men. Fewer studies have examined associations with 24-h ambulatory blood pressure (ABP), blunted nocturnal BP decline or the role of dehydroepiandrosterone sulfate (DHEAS), a precursor to androgens. METHODS: Baseline blood samples were assayed for 229 normotensive men (≥50 years) and women (≥55 years) participating in the VITamin D and OmegA-3 TriaL...
November 2018: Journal of Hypertension
https://www.readbyqxmd.com/read/29892563/prevalence-of-hypovitaminosis-d-and-its-association-with-hypoadiponectinemia-and-hyperfollistatinemia-in-saudi-women-with-na%C3%A3-ve-polycystic-ovary-syndrome
#12
Osama Adnan Kensara
Aims: The association between vitamin D and polycystic ovary syndrome (PCOS) is an active area of growing research. However, data in Saudi Arabia are scarce. This study aimed to define serum 25-hydroxyvitamin D (25(OH)D) levels among Saudi women with naïve PCOS, and to investigate the associations of their 25(OH)D status with their serum adiponectin and follistatin levels, along with indices of insulin resistance and hormonal deteriorations. Methods: In this case-control observational study, 63 women with PCOS and 65 age-and body mass index (BMI)-matched control women were assessed...
June 2018: Journal of Clinical & Translational Endocrinology
https://www.readbyqxmd.com/read/29859385/the-influences-of-vitamin-d-and-omega-3-co-supplementation-on-clinical-metabolic-and-genetic-parameters-in-women-with-polycystic-ovary-syndrome
#13
Mehri Jamilian, Mansooreh Samimi, Naghmeh Mirhosseini, Faraneh Afshar Ebrahimi, Esmat Aghadavod, Rezavan Talaee, Sadegh Jafarnejad, Shahrzad Hashemi Dizaji, Zatollah Asemi
OBJECTIVE: The aim of this study was to evaluate the effect of the co-administration of vitamin D and omega-3 fatty acid on clinical, metabolic and genetic parameters in women with polycystic ovary syndrome (PCOS). METHODS: This randomized, double-blinded, placebo-controlled clinical trial was conducted on 60 subjects, aged 18-40 years old with PCOS. Subjects were randomly allocated to take either 50,000 IU vitamin D every 2 weeks plus 2000 mg/day omega-3 fatty acid from fish oil (n = 30) or placebo (n = 30) for 12 weeks...
October 1, 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29765521/long-term-deficiency-of-vitamin-d-in-germ-cell-testicular-cancer-survivors
#14
Lucia Nappi, Margaret Ottaviano, Pasquale Rescigno, Ladan Fazli, Martin E Gleave, Vincenzo Damiano, Sabino De Placido, Giovannella Palmieri
Background: Cisplatin-based chemotherapy significantly improved the survival of patients with germ cell testicular cancer. However, long term side effects of chemotherapy have non-negligible impact on the quality of life of these young patients, who have a long life expectancy after being successfully treated. Materials and Methods: 25-OH vitamin D, testosterone, FSH and LH of patients with testicular cancer were retrospectively evaluated and for each patient clinical information were collected...
April 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29745981/evaluation-of-biochemical-endocrine-and-metabolic-biomarkers-for-the-early-diagnosis-of-polycystic-ovary-syndrome-among-non-obese-saudi-women
#15
Maha H Daghestani
OBJECTIVE: To investigate the potential of selected biochemical, endocrine, and metabolic biomarkers for early diagnosis of polycystic ovary syndrome (PCOS) among non-obese women. METHODS: A prospective observational cross-sectional study was conducted at three medical centers in Makkah, Saudi Arabia, between July 15 and September 20, 2017. Eligible participants were non-obese women diagnosed with PCOS according to the Rotterdam criteria (n=44) and non-obese normo-ovulatory women without signs of PCOS (control group; n=44)...
August 2018: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/29745000/impact-of-serum-25-oh-vitamin-d-level-on-lower-urinary-tract-symptoms-in-men-a-step-towards-reducing-overactive-bladder
#16
Sangjun Yoo, Sohee Oh, Hyung Suk Kim, Han Seok Choi, Juhyun Park, Sung Yong Cho, Hwancheol Son, Hyeon Jeong, Hae Won Lee, Min Chul Cho
OBJECTIVES: To evaluate the impact of serum vitamin D level on male lower urinary tract symptoms (LUTS). PATIENTS AND METHODS: Men with LUTS who visited the outpatient clinic of the urology department at one of two hospitals between March 2014 and April 2017 were eligible for inclusion in the study. The impact of vitamin D on LUTS was evaluated using multivariate analysis to adjust for age, body mass index, prostate-specific antigen, testosterone, glycated haemoglobin, physical activity and prostate volume...
October 2018: BJU International
https://www.readbyqxmd.com/read/29683475/pharmacological-interventions-for-the-prevention-of-insufficiency-fractures-and-avascular-necrosis-associated-with-pelvic-radiotherapy-in-adults
#17
REVIEW
Qurrat U van den Blink, Kate Garcez, Caroline C Henson, Susan E Davidson, Claire E Higham
BACKGROUND: Pelvic radiotherapy is a treatment delivered to an estimated 150,000 to 300,000 people annually across high-income countries. Fractures due to normal stresses on weakened bone due to radiotherapy are termed insufficiency fractures. Pelvic radiotherapy-related interruption of the blood supply to the hip is termed avascular necrosis and is another recognised complication. The reported incidences of insufficiency fractures are 2.7% to 89% and risk of developing avascular necrosis is 0...
April 23, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29669566/apa-i-polymorphism-in-vdr-gene-is-related-to-metabolic-syndrome-in-polycystic-ovary-syndrome-a-cross-sectional-study
#18
Betânia Rodrigues Santos, Sheila Bunecker Lecke, Poli Mara Spritzer
BACKGROUND: Polycystic ovary syndrome (PCOS) is a common endocrine disorder determined by polygenic traits as well as environmental factors. Lower vitamin D levels have been detected in PCOS women and related to hormone and metabolic disturbances. Vitamin D acts in tissues through the vitamin D receptor (VDR). VDR gene variants have been associated with worse metabolic profile in the general population. We investigated the genotype and haplotype distribution of the Bsm-I (rs1544410), Apa-I (rs7975232), and Taq-I (rs731236) VDR gene polymorphisms in PCOS and non-hirsute women from southern Brazil...
April 18, 2018: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/29560610/investigating-the-effect-of-testosterone-by-itself-and-in-combination-with-letrozole-on-1-25-dihydroxy-vitamin-d-and-fgf23-in-male-rats
#19
F Saki, S R Kasaee, F Sadeghian, F Koohpeyma, G H R Omrani
BACKGROUND: Testosterone deficiency might be associated with vitamin D levels in hypogonadal men, but it is not clear whether testosterone can affect vitamin D and fibroblast growth factor-23 (FGF23), either directly or indirectly via aromatization to estradiol. We aimed to investigate the role of testosterone on vitamin D metabolism and serum FGF23 in male rats. METHODS: A total of 48 male rats were divided into 4 equal groups: sham; O, orchiectomy; O + T, orchiectomized rats treated with testosterone; and O + T + L, orchiectomized rats treated with combination of testosterone and letrozole...
March 20, 2018: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29548752/vitamin-d-is-associated-with-bioavailability-of-androgens-in-eumenorrheic-women-with-prior-pregnancy-loss
#20
Daniel L Kuhr, Lindsey A Sjaarda, Zeina Alkhalaf, Ukpebo R Omosigho, Matthew T Connell, Robert M Silver, Keewan Kim, Neil J Perkins, Tiffany L Holland, Torie C Plowden, Enrique F Schisterman, Sunni L Mumford
BACKGROUND: Prior studies have reported mixed results regarding relationships between vitamin D, androgens, and sex hormone-binding globulin in patients with polycystic ovary syndrome. However, less is known regarding these associations in eumenorrheic, premenopausal women. OBJECTIVE: Our objective was to study the relationships between serum vitamin D and androgen biomarkers in eumenorrheic women with a history of pregnancy loss who were attempting pregnancy. STUDY DESIGN: This was an analysis of a cohort of 1191 participants from the Effects of Aspirin in Gestation and Reproduction trial (2006-2012)...
June 2018: American Journal of Obstetrics and Gynecology
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