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hypogonadism osteoporosis

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https://www.readbyqxmd.com/read/29745791/prevention-and-management-of-osteoporosis-and-osteoporotic-fractures-in-persons-with-a-spinal-cord-injury-or-disorder-a-systematic-scoping-review
#1
Nour Zleik, Frances Weaver, Robert L Harmon, Brian Le, Reshmitha Radhakrishnan, Wanda D Jirau-Rosaly, B Catharine Craven, Mattie Raiford, Jennifer N Hill, Bella Etingen, Marylou Guihan, Michael H Heggeness, Cara Ray, Laura Carbone
OBJECTIVES: The primary objective was to review the literature regarding methodologies to assess fracture risk, to prevent and treat osteoporosis and to manage osteoporotic fractures in SCI/D. STUDY DESIGN: Scoping review. Settings/Participants: Human adult subjects with a SCI/D. OUTCOME MEASURES: Strategies to identify persons with SCI/D at risk for osteoporotic fractures, nonpharmacological and pharmacological therapies for osteoporosis and management of appendicular fractures...
May 10, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29726995/the-balance-of-pi3k-and-erk-signaling-is-dysregulated-in-prolactinoma-and-modulated-by-dopamine
#2
Allyson K Roof, Siwanon Jirawatnotai, Tammy Trudeau, Crystal Kuzyk, Margaret E Wierman, Hiroaki Kiyokawa, Arthur Gutierrez-Hartmann
Prolactin-secreting adenomas, or prolactinomas, cause hypogonadism, osteoporosis, and infertility. Although dopamine agonists (DAs) are used clinically to treat prolactinoma, and reduce prolactin secretion via cAMP inhibition, the precise mechanism by which DAs inhibit lactotrope proliferation has not been defined. Here we report the novel finding that PI3K signals through AKT and mTOR to drive proliferation of pituitary somatolactotrope GH4T2 cells. We demonstrate that the DA cabergoline reduces activity of the mTOR effector s6K, and diminishes GH4T2 cell proliferation primarily via activation of the long isoform of the dopamine D2 receptor (D2R)...
May 2, 2018: Endocrinology
https://www.readbyqxmd.com/read/29691807/glucocorticoid-induced-osteoporosis-an-update
#3
REVIEW
Juliet Compston
Glucocorticoid-induced osteoporosis is the most common secondary cause of osteoporosis and the resulting fractures cause significant morbidity. Following initiation of oral glucocorticoids, rapid bone loss occurs, and fracture risk increases within a few months in a dose-dependent manner. These adverse effects are due to inhibition of bone formation accompanied by an early but transient increase in bone resorption. Multiple mechanisms underlie these changes in bone remodeling; direct effects include upregulation of PPARγR2, increased expression of sclerostin and increased RANKL/OPG ratio, whilst hypogonadism, altered renal and intestinal calcium handling, and reduced production of insulin-like growth factor 1 also contribute...
April 24, 2018: Endocrine
https://www.readbyqxmd.com/read/29588572/effect-of-tocotrienol-from-bixa-orellana-annatto-on-bone-microstructure-calcium-content-and-biomechanical-strength-in-a-model-of-male-osteoporosis-induced-by-buserelin
#4
Nur-Vaizura Mohamad, Soelaiman Ima-Nirwana, Kok-Yong Chin
Background: Patients receiving androgen deprivation therapy experience secondary hypogonadism, associated bone loss, and increased fracture risk. It has been shown that tocotrienol from Bixa orellana (annatto) prevents skeletal microstructural changes in rats experiencing primary hypogonadism. However, its potential in preventing bone loss due to androgen deprivation therapy has not been tested. This study aimed to evaluate the skeletal protective effects of annatto tocotrienol using a buserelin-induced osteoporotic rat model...
2018: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29535939/a-prospective-observational-study-of-osteoporosis-in-men
#5
Narendra Kotwal, Vimal Upreti, Amit Nachankar, K V S Hari Kumar
Context: The number of men afflicted with osteoporosis is unknown. Aims: This study aims to determine the prevalence of osteoporosis in men. Settings and Design: This was a prospective, observational study. Subjects and Methods: A total of 200 male attendants of patients attending endocrine outpatient department and who were >55 years were recruited for the study. All the patients with osteopenia and osteoporosis were advised lifestyle interventions, supplementation with calcium carbonate (1000-1500 mg/day) and 25-hydroxyl-Vitamin D (400-600 IU/day) and bisphosphonates if indicated...
January 2018: Indian Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29534662/primary-bullous-keratopathy-in-a-patient-with-werner-syndrome-treated-with-corneal-transplant
#6
Divya Singh, Anita Ganger, Noopur Gupta, Murugesan Vanathi, Rajesh Khadgawat, Radhika Tandon
Here, we present, to the best of our knowledge, the first case of Werner syndrome with corneal blindness due to bilateral primary bullous keratopathy. Werner syndrome is a rare autosomal recessive disorder characterized by features of premature aging, insulin-dependent diabetes mellitus, osteoporosis, atherosclerosis, hypergonadotrophic hypogonadism, hypertriglyceridemia, scleroderma-like skin changes, and sarcomas. Among ocular manifestations, cataracts, cystoid macular edema, and retinal detachment have been reported...
March 9, 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29530627/consensus-document-on-osteoporosis-in-males
#7
Mariela Varsavsky, Manuel Romero Muñoz, Verónica Ávila Rubio, Antonio Becerra, Antonia García Martín, Guillermo Martínez Díaz-Guerra, Pedro Rozas Moreno, Esteban Jódar Gimeno, Manuel Muñoz Torres
OBJECTIVE: To provide practical recommendations to assess and treat osteoporosis in males. PARTICIPANTS: Members of the Bone Metabolism Working Group of the Spanish Society of Endocrinology. METHODS: Recommendations were formulated using the GRADE system (Grading of Recommendations, Assessment, Development, and Evaluation) to describe both the strength of recommendations and the quality of evidence. A systematic search was made in Medline (PubMed) using the following associated terms: «osteoporosis», «men», «fractures», «bone mineral density», «treatment», «hypogonadism», and «prostate cancer»...
March 2018: Endocrinología, Diabetes y Nutrición
https://www.readbyqxmd.com/read/29499097/eaa-clinical-guideline-on-management-of-bone-health-in-the-andrological-outpatient-clinic
#8
REVIEW
V Rochira, L Antonio, D Vanderschueren
Male osteoporosis is now a well-recognized medical disorder with established clinical guidelines for both diagnosis and management. Prevention as well as management of osteoporosis in men consulting the andrological outpatient clinic because of low testosterone, however, is not well established. This gap of knowledge is-at least partly-explained by the controversy with respect to the threshold of testosterone needed for skeletal maintenance. However, testosterone deficiency may be clearly associated with bone loss as well as frailty in men...
March 2018: Andrology
https://www.readbyqxmd.com/read/29479918/hepatic-osteodystrophy-a-global-re-view-of-the-problem
#9
REVIEW
Ecaterina-Constanța Barbu, Cristina-Emilia Chițu-Tișu, Mihai Lazăr, Cristina Olariu, Mihai Bojincă, Răzvan Adrian Ionescu, Daniela Adriana Ion, Ioana Anca Bădărău
Hepatic osteodystrophy is a common and frequently untreated complication, manifested as osteoporosis or osteopenia, encountered in the evolution of chronic liver diseases. This article provides a narrative review of hepatic osteodystrophy. The aim is to revise the prevalence, pathophysiology, diagnosis and management of hepatic osteodystrophy. We searched medical literature via PubMed, Google Scholar, Wiley, Science Direct, and Springer Link using respective keywords to obtain data on low bone mineral density connected to chronic liver diseases...
September 2017: Acta Clinica Croatica
https://www.readbyqxmd.com/read/29479832/osteoporosis-in-chronic-liver-disease
#10
REVIEW
Núria Guañabens, Albert Parés
Osteoporosis is a frequent complication in patients with chronic liver disease, especially in end-stages and in chronic cholestasis, in addition to non-alcoholic fatty liver disease, haemochromatosis and alcoholism. Mechanisms underlying osteoporosis are poorly understood, but osteoporosis mainly results from low bone formation. In this setting, sclerostin, a key regulator of the Wnt/β-catenin signalling pathway which regulates bone formation, in addition to the effects of the retained substances of cholestasis such as bilirubin and bile acids on osteoblastic cells, may influence the decreased bone formation in chronic cholestasis...
May 2018: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29418016/bone-mineral-density-in-young-adults-with-prader-willi-syndrome-a-randomized-placebo-controlled-crossover-gh-trial
#11
Stephany H Donze, Renske J Kuppens, Nienke E Bakker, Janiëlle A E M van Alfen-van der Velden, Anita C S Hokken-Koelega
CONTEXT: The prevalence of osteoporosis is increased in adults with Prader-Willi syndrome (PWS). In children with PWS, growth hormone (GH) treatment has beneficial effects on bone mineral density (BMD). BMD might deteriorate after cessation of GH at adult height (AH), while continuing GH might maintain BMD. OBJECTIVE: To investigate the effects of GH vs placebo, and furthermore the effects of sex steroid replacement therapy (SSRT), on BMD in GH-treated young adults with PWS who had attained AH...
February 8, 2018: Clinical Endocrinology
https://www.readbyqxmd.com/read/29382506/klinefelter-syndrome-more-than-hypogonadism
#12
REVIEW
George A Kanakis, Eberhard Nieschlag
Klinefelter syndrome (KS) is the most frequent chromosome disorder in males (1:650 newborn males), defined by 47,XXY karyotype. The classical phenotype is that of a tall male with relatively long legs, small, firm testes and gynecomastia. Azoospermia and infertility are almost inevitably present, but may be overcome by TESE and ICSI. Nevertheless, a broad spectrum of phenotypes has been described and more than 70% of the actually existing KS men may remain undiagnosed throughout their lifespan. Accordingly, hypogonadism is usually not evident until early adulthood and progresses with ageing...
January 31, 2018: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29319133/the-assessment-of-testosterone-and-radioisotopic-index-of-bone-metabolism-and-bone-mineral-density-in-men-with-testosterone-deficiency-after-one-year-of-testosterone-therapy
#13
Wieslaw Tryniszewski, Grzegorz Kamiński, Zbigniew Maziarz, Michal Nowak, Mariusz Gadzicki, Maciej Radek
BACKGROUND: Testosterone deficiency in men is characterized by typical symptoms of hypogonadism and negative influence on the preservation of bone mass. In this study, we analysed the relationship between testosterone concentration and bone metabolism. Moreover, we assessed the impact of one-year compensation of testosterone deficiency in elderly men on bone metabolism and bone mineral density. Radioisotopic methods of bone metabolism assessment provide new research opportunities. MATERIALS AND METHODS: Men with total testosterone concentration (TT) ≤ 3 ng/ml were included into this study...
January 10, 2018: Nuclear Medicine Review. Central & Eastern Europe
https://www.readbyqxmd.com/read/29313284/endocrinological-aspects-of-hiv-infection
#14
REVIEW
F S Mirza, P Luthra, L Chirch
PURPOSE: Patients with human immunodeficiency virus (HIV) are living longer with effective antiretroviral therapies and are enjoying near normal life span. Therefore, they are encountering endocrine issues faced by the general population along with those specific to HIV infection. The purpose of this article is to review the common endocrine aspects of HIV infection, and the early detection and management strategies for these complications. METHODS: Recent literature on HIV and endocrine disease was reviewed...
January 8, 2018: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29303101/-testosterone-therapy-indications-and-risks
#15
M G F Maatje, M Dinkelman-Smit, W P A Boellaard, G R Dohle
- Late onset hypogonadism (LOH) is a shortage of testosterone in adult men whose male development was normal. This form of hypogonadism results in decreased testosterone levels and variable gonadotrophin levels. - The symptoms of LOH are often aspecific and may be consistent with ageing in men: lowered libido, loss of strength, reduced cognitive functioning and disorders of sleeping and mood. - There is discussion about testosterone parameters, but if clinical symptoms are consistent with LOH and the testosterone level is < 8 nmol/l, hypogonadism is evidently indicated...
2018: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/29289389/tubb3-e410k-syndrome-with-osteoporosis-and-cough-syncope-in-a-patient-previously-diagnosed-with-atypical-moebius-syndrome
#16
Yasuko Nakamura, Hiroshi Matsumoto, Kiyotaka Zaha, Kenji Uematsu, Shigeaki Nonoyama
BACKGROUND: A heterozygous c.1228G > A p.E410K mutation in TUBB3 encoding neuronal-specific β-tubulin isotype 3 causes TUBB3 E410K syndrome, which exhibits a wide range of neurological and endocrinological abnormalities. CASE DESCRIPTION: The patient is a 31-year-old Japanese woman who was diagnosed with atypical Moebius syndrome because of congenital facial weakness and extraocular ophthalmoplegia sparing abduction. She suffered a femoral neck fracture at 23 years of age, and radiological and endocrinological studies revealed osteoporosis because of hypogonadotropic hypogonadism...
March 2018: Brain & Development
https://www.readbyqxmd.com/read/29222266/impact-of-bone-disease-and-pain-in-thalassemia
#17
REVIEW
Antonio Piga
Conventional treatment of thalassemia, namely regular blood transfusion and iron chelation, improves perspectives and quality of life; however, successful treatment leads to more time in which long-term complications such as bone disease can develop. Thalassemia bone disease (TBD) is unique: all aspects, from bone anatomy and bone quality to mineral density, may be affected, with important morbidity including osteoporosis, fractures, spinal deformities, nerve compression, and pain. Clinical presentations include growth impairment, rickets-like features, back pain, spinal deformities, any sign of nerve compression, severe osteoporosis, and fragility fractures...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/28817886/re-effects-of-testosterone-replacement-therapy-on-hypogonadal-men-with-osteopenia-or-osteoporosis-a-subanalysis-of-a-prospective-randomized-controlled-study-in-japan-earth-study
#18
https://www.readbyqxmd.com/read/28791186/a-case-of-male-osteoporosis-a-37-year-old-man-with-multiple-vertebral-compression-fractures
#19
Suhaib Radi, Andrew C Karaplis
While the contributing role of testosterone to bone health is rather modest compared to other factors such as estradiol levels, male hypogonadism is associated with low bone mass and fragility fractures. Along with stimulating physical puberty by achieving virilization and a normal muscle mass and improving psychosocial wellbeing, the goals of testosterone replacement therapy in male hypogonadism also include attainment of age-specific bone mineral density. We report on a 37-year-old man who presented with multiple vertebral compression fractures several years following termination of testosterone replacement therapy for presumed constitutional delay in growth and puberty...
2017: Case Reports in Endocrinology
https://www.readbyqxmd.com/read/28721216/switch-to-restoration-therapy-in-a-testosterone-treated-central-hypogonadism-with-erythrocytosis
#20
B Cangiano, C Cacciatore, L Persani, M Bonomi
We describe a case of severe erythrocytosis caused by testosterone replacement therapy in a 66-year-old man affected with hypogonadotropic hypogonadism (HH) determining osteoporosis, resolved by switching to restoration therapy with clomiphene citrate. The patient complained fatigue, loss of libido and defective erections and a spontaneous vertebral fracture despite bisphosphonate therapy and vitamin D supplementation. The examinations proved isolated HH and he was therefore treated with testosterone gel with regression of specific manifestations but elevated hemoglobin and hematocrit values...
2017: Endocrinology, Diabetes & Metabolism Case Reports
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