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Parathyroid hormone

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https://www.readbyqxmd.com/read/29036000/unilateral-submandibular-gland-atrophy-and-sialolithiasis-diagnosed-on-99mtc-mibi-spect-ct-in-a-patient-with-primary-hyperparathyroidism
#1
Puskar Pattanayak, Prasanna Santhanam, Mehrbod Som Javadi, Lilja B Solnes, Steven P Rowe
A variety of sequelae of elevated calcium levels are encountered in patients with underlying primary hyperparathyroidism, including stone formation such as calculi in the urinary tract and sialoliths in the salivary glands and ducts. We present a case of a 54-year-old woman with fatigue, myalgia, and poor concentration who was found to have hypercalcemia (corrected calcium, 11.2 mg/dL) and elevated parathyroid hormone level (112 pg/mL), laboratory values consistent with primary hyperparathyroidism. She underwent evaluation with a Tc-MIBI parathyroid SPECT scan that included x-ray CT acquisitions for anatomical localization and attenuation correction...
October 13, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29030560/risk-of-sarcopenia-and-osteoporosis-in-male-tuberculosis-survivors-korea-national-health-and-nutrition-examination-survey
#2
Chang-Jin Choi, Whan-Seok Choi, Churl-Min Kim, Sook-Young Lee, Kyung-Soo Kim
Short-term prospective studies have suggested that pulmonary tuberculosis (TB) preludes permanent loss of lean tissue and fat mass even when TB treatment is effective. The aim of this study was to estimate the risk of sarcopenia and osteoporosis among Korean male TB survivors. Data of the population-based, Korea National Health and Nutrition Examination Survey (KNHANES) (2008-2011) were analyzed, including 3,228 males aged 50 years or older who underwent chest X-ray (CXR) and dual-energy x-ray absorptiometry (DEXA)...
October 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29029600/clinical-features-and-ckd-related-quality-of-life-in-patients-with-ckd-g3a-and-ckd-g3b-in-china-results-from-the-chinese-cohort-study-of-chronic-kidney-disease-c-stride
#3
Zhangzhe Peng, Jinwei Wang, Qiongjing Yuan, Xiangcheng Xiao, Hui Xu, Yanyun Xie, Wei Wang, Ling Huang, Yong Zhong, Xiang Ao, Luxia Zhang, Minghui Zhao, Lijian Tao, Qiaoling Zhou
BACKGROUND: This study aimed to compare clinical features and health-related quality of life (HRQoL) in the Chinese chronic kidney disease (CKD) 3 population and determined the necessity of the subdivision of CKD3 in Chinese patients with CKD. METHODS: Participants with stage 3 CKD (18-74 years of age) were recruited at 39 clinical centers located at 28 cities in 22 provinces of China. The sociodemographic status, medical history, anthropometric measurements, and lifestyle behaviors were documented at entry, and blood and urine samples were collected...
October 13, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/29029193/sex-and-iron-modify-fibroblast-growth-factor-23-fgf23-concentration-in-1-year-old-children
#4
Elisa Holmlund-Suila, Maria Enlund-Cerullo, Saara Valkama, Helena Hauta-Alus, Jenni Rosendahl, Otto Helve, Timo Hytinantti, Heli Viljakainen, Sture Andersson, Outi Mäkitie
Context: Fibroblast growth factor 23 (FGF23) plays an important role in phosphate homeostasis but its regulation is inadequately characterized. Objective: To examine regulators of FGF23, especially sex and iron status, in early childhood. Design: A cross-sectional study involving 1-year-old children. Setting and participants: Healthy term infants with a birth weight appropriate for gestational age were recruited to an ongoing vitamin D trial at the Kätilöopisto Maternity Hospital, Helsinki, Finland...
October 5, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29029099/biomarkers-of-mineral-and-bone-metabolism-and-20-year-risk-for-hospitalization-with-infection-the-aric-study
#5
Junichi Ishigami, Bernard G Jaar, Casey M Rebholz, Morgan E Grams, Erin D Michos, Myles Wolf, Csaba P Kovesdy, Shinichi Uchida, Josef Coresh, Pamela L Lutsey, Kunihiro Matsushita
Context: Mineral and bone disorders (MBD) may be relevant in the etiology of infection. Objective: To determine whether MBD biomarkers were associated with incidence of hospitalization with infection. We also assessed the cross-sectional association between levels of MBD biomarkers and kidney function. Design: Setting, Participants: Community-based cohort study using 11,218 participants with estimated glomerular filtration rate (eGFR) ≥30 ml/min/1...
September 27, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29028083/association-between-advanced-oxidation-protein-products-aopp-and-vascular-calcification-in-uremic-patients
#6
L Lin, G-J Zhao, L-L Qin
OBJECTIVE: To investigate the correlation between serum advanced oxidation protein products (AOPP) and vascular calcification in uremic patients. PATIENTS AND METHODS: The general data of included subjects were collected, and the serum AOPP, intact parathyroid hormone (iPTH), creatinine (Cre), Urea, calcium (Ca), phosphorus (P), total cholesterol (TC), triglyceride (TG), low density lipoprotein cholesterin (LDL-C), hemoglobin (Hb) and albumin (ALB) were detected...
September 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29026164/production-and-evaluation-of-parathyroid-hormone-receptor1-ligands-with-intrinsic-or-assembled-peroxidase-domains
#7
Xavier Charest-Morin, Patrice E Poubelle, François Marceau
Parathyroid hormone (PTH) can be C-terminally extended without significant affinity loss for the PTH1 receptor (PTHR1). We developed fusion protein ligands with enzymatic activity to probe PTHR1s at the cell surface. Two fusion proteins were generated by linking PTH to the N-terminus of either horseradish peroxidase (PTH-HRP) or the genetically modified soybean peroxidase APEX2 (PTH-APEX2). Alternatively, myc-tagged PTH (PTH-myc) was combined with antibodies, some of which HRP-conjugated, in the extracellular fluid...
October 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29023178/effect-of-calcium-derived-from-lithothamnion-sp-on-markers-of-calcium-metabolism-in-premenopausal-women
#8
John L Zenk, Joy L Frestedt, Michael A Kuskowski
A double-blind crossover pilot trial tested the hypothesis that botanically derived calcium could demonstrate greater influence over calcium metabolism markers compared with a nonplant-derived calcium carbonate supplement or placebo. Twelve fasting female subjects received a single oral dose of Aquamin F™ (derived from the marine algal Lithothamnion sp.), or calcium carbonate, or placebo. Blood and urine samples were collected at baseline and over 12 h to evaluate ionized and total calcium and parathyroid hormone (PTH)...
October 12, 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29022783/current-predictive-models-do-not-accurately-differentiate-between-single-and-multi-gland-disease-in-primary-hyperparathyroidism-a-retrospective-cohort-study-of-two-endocrine-surgery-units
#9
O Edafe, E E Collins, C S Ubhi, S P Balasubramanian
Background Minimally invasive parathyroidectomy (MIP) for primary hyperparathyroidism is dependent upon accurate prediction of single-gland disease on the basis of preoperative imaging and biochemistry. The aims of this study were to validate currently available predictive models of single-gland disease in two UK cohorts and to determine if these models can facilitate MIP. Methods This is a retrospectively cohort study of 624 patients who underwent parathyroidectomy for primary hyperparathyroidism in two centres between July 2008 and December 2013...
September 15, 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/29017699/urinary-calcium-excretion-and-bone-turnover-in-osteoporotic-patients%C3%A2
#10
Amr El-Husseini, Amit Chakraborty, Qingcong Yuan, Saqib Inayatullah, Heather Bush, B Peter Sawaya
INTRODUCTION: It is well documented that patients with osteoporosis (OP) have high incidence of hypercalciuria (HC). However, the mechanism of HC in patients with OP is not well established. It is thought to be the result of high bone turnover (HBT) with excessive bone resorption. OP also frequently presents with low bone turnover (LBT). At this time, it is not clear whether OP with LBT is also associated with hypercalciuria. PURPOSE: The purpose of this study is to evaluate urinary calcium excretion in osteoporotic patients with HBT and LBT...
October 11, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/29017107/vitamin-d-and-parathyroid-hormone-are-associated-with-gait-instability-and-poor-balance-performance-in-mid-age-to-older-aged-women
#11
Marie-Louise Bird, Natalie El Haber, Frances Batchelor, Keith Hill, John D Wark
CONTEXT: Vitamin D status and parathyroid hormone (PTH) levels influence the risk of accidental falls in older people, but the mechanisms underlying this effect remain unclear. OBJECTIVE: Investigate the relationship between circulating PTH and 25 hydroxyvitamin D (25-OHD) levels and clinical tests of gait stability and balance as physical fall risk factors. We hypothesized that high levels of PTH and low 25-OHD levels would be significantly associated with gait stability and decreased balance performance...
September 28, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28992983/primary-hyperparathyroidism
#12
REVIEW
Manuel Muñoz-Torres, Antonia García-Martín
Primary hyperparathyroidism (PHPT) is a common endocrinological process, characterized by chronic elevation of serum concentrations of calcium and parathyroid hormone (PTH). Many years ago, the most frequent forms of clinical presentation were symptomatic renal or skeletal disease with moderate or severe hypercalcemia; however, currently, most patients have few symptoms and mild hypercalcemia. A new form of presentation called normocalcemic PHPT has also been described but clinical consequences are not well established...
October 6, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28992939/kidney-function-bone-mineral-metabolism-markers-and-future-risk-of-peripheral-artery-disease
#13
Chao Yang, Lucia Kwak, Shoshana H Ballew, Pranav S Garimella, Bernard G Jaar, Aaron R Folsom, Gerardo Heiss, Elizabeth Selvin, Pamela L Lutsey, Josef Coresh, Kunihiro Matsushita
BACKGROUND AND AIMS: Reduced kidney function is a risk factor for lower-extremity peripheral artery disease (PAD). However, the associations of novel filtration markers with PAD are yet to be quantified. Moreover, little is known on whether bone-mineral metabolism (BMM) markers are related to incident PAD beyond kidney function. METHODS: Using data from 12,472 participants at baseline (1990-1992) of the Atherosclerosis Risk in Communities (ARIC) study, we comprehensively quantified the associations of kidney related markers with incident PAD (defined as hospitalizations with diagnosis of lower-extremity atherosclerosis, revascularization, or amputation)...
September 22, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28992314/nutritional-therapy-reduces-protein-carbamylation-through-urea-lowering-in-chronic-kidney-disease
#14
Biagio R Di Iorio, Stefania Marzocco, Antonio Bellasi, Emanuele De Simone, Fabrizio Dal Piaz, Maria Teresa Rocchetti, Carmela Cosola, Lucia Di Micco, Loreto Gesualdo
Background: Protein carbamylation is one of the non-enzymatic reactions involved in protein molecular ageing. We sought to investigate the relationship between urea levels and protein carbamylation, and whether a Mediterranean diet (MD) and a very low protein diet (VLPD) reduce protein carbamylation through reduction in urea levels in patients with chronic kidney disease (CKD). Methods: This is a prospective, randomized, crossover controlled trial that investigated 60 patients with CKD grades 3B-4 (46 males, mean age of 67 years)...
July 11, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28990414/biomarkers-of-endothelial-renal-and-platelet-dysfunction-in-stage-5-chronic-kidney-disease-hemodialysis-patients-with-heart-failure
#15
Ryan McMillan, Leonidas Skiadopoulos, Debra Hoppensteadt, Nil Guler, Vinod Bansal, Ravipresenna Parasuraman, Jawed Fareed
The aim of this study was to determine the role of endothelial, renal, and inflammatory biomarkers in the pathogenesis of heart failure (HF) in patients with stage 5 chronic kidney disease (CKD5) undergoing maintenance hemodialysis (HD). Plasma levels of biomarkers-kidney injury molecule 1 (KIM-1), N-terminal pro brain natriuretic peptide (NT-proBNP), glycated hemoglobin, neutrophil gelatinase-associated lipocalin, interleukin-18,platelet-derived growth factor, platelet factor 4 (PF4), 25-OH vitamin D, parathyroid hormone (PTH), endothelin, and endocan-were measured in CKD5-HD patients at the Loyola University Ambulatory Dialysis facility...
January 1, 2017: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/28984340/water-clear-cell-adenoma-of-the-mediastinal-parathyroid-gland
#16
Deniz Arik, Emine Dündar, Evrim Yilmaz, Cumhur Sivrikoz
Water-clear cell adenoma of the parathyroid gland is a rare neoplasm that consists of cells with abundant clear-pink cytoplasm. There have only been 19 cases reported in the English literature. Here we report a case of water-clear cell adenoma of the mediastinal parathyroid gland. A 70-year-old male patient presented to the hospital with back pain and a mediastinal mass 6 cm in size was detected. After excision and microscopic evaluation, uniform, large clear cells with fine cytoplasmic vacuolization, without nuclear atypia, and arranged in solid and acinar patterns were revealed...
October 6, 2017: Türk Patoloji Dergisi
https://www.readbyqxmd.com/read/28982328/effect-of-oral-nonionic-polymeric-micelles-delivered-parathyroid-hormone-cdna-on-bone-density-and-microarchitecture
#17
Sung-Hsiung Chen, Jih-Yang Ko, Fong-Fu Chou
INTRODUCTION: Parathyroid hormone (PTH) is an effective therapeutic agent for osteoporosis, but the treatment requires long-term daily injections. Oral gene delivery is a less invasive alternative to daily injections. The aim of this study is to investigate the effect of orally administered nonionic polymeric micelles of plasmid cDNA containing human cytomegalovirus promoter (PCMV)-PTH (1-34) plus EDTA on body mineral density and bone microstructure in ovariectomized rats. A total of 27 Spraque-Dawley female rats were subjected to a bilateral ovariectomy...
October 4, 2017: Current Gene Therapy
https://www.readbyqxmd.com/read/28980761/parathyroid-nodular-hyperplasia-and-responsiveness-to-drug-therapy-in-renal-secondary-hyperparathyroidism-an-open-question
#18
REVIEW
Carlo Vulpio, Maurizio Bossola
The goal of the pharmacological therapy in secondary hyperparathyroidism (SHPT) is to reduce serum levels of parathyroid hormone and phosphorus, to correct those of calcium and vitamin D, to arrest or reverse the parathyroid hyperplasia. However, when nodular hyperplasia or an autonomous adenoma develops, surgery may be indicated. We reviewed the literature with the aim of defining if the echographic criteria predictive of unresponsiveness of SHPT to calcitriol therapy are valid also in the cinacalcet era and if drug therapy may reverse nodular hyperplasia of parathyroid gland (PTG)...
October 5, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28979642/nonfunctional-double-parathyroid-carcinoma-with-incidental-thyroid-micropapillary-carcinoma-a-rare-case
#19
Kursat Dikmen, Hasan Bostanci, Huseyin Gobut, Alp Yildiz, Onur Ertunc, Ali Celik, Murat Akin, Ferit Taneri
Parathyroid carcinomas are rare endocrine tumors which comprise 0.3-5.6% of all causes of hyperparathyroidism. 90% of them are hormonally active, while 10% of them may be non-functional. They mostly occur in a single parathyroid gland. Concurrent involvement of both parathyroid glands is quite rare. A 57-year-old male patient was admitted to emergency department with the complaint of dyspnea. Thorax tomography revealed a retrosternal mass. The mass was thoracoscopically excised by thoracic surgeons. Histopathological examination result of the mass was reported as parathyroid carcinoma...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28978869/vitamin-d-receptor-gene-variation-dietary-intake-and-bone-mineral-density-in-obese-women-a-cross-sectional-study
#20
Sajjad Moradi, Leila Khorrami-Nezhad, Zhila Maghbooli, Banafshe Hosseini, Seyed Ali Keshavarz, Khadijeh Mirzaei
Osteoporosis and fragility fractures have been regarded as important public health concerns. We investigated their possible association with vitamin D receptor (VDR) FOK1 polymorphisms (rs10735810) and dietary parameters such as calcium and vitamin D intake. A total of 264 Iranian obese women (BMI>30 kg/m(2)) were categorized based on the FOK1 genotype and divided into two groups: group one with the FF genotype (n=184) and the f allele carrier group with the Ff or ff genotype (n=80). The body composition, dietary intake and bone mineral density were assessed for all cases...
2017: Journal of Nutritional Science and Vitaminology
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