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https://www.readbyqxmd.com/read/28650133/imaging-in-primary-hyperparathyroidism-focus-on-the-evidence-based-diagnostic-performance-of-different-methods
#1
Giorgio Treglia, Pierpaolo Trimboli, Martin Huellner, Luca Giovanella
BACKGROUND: Primary hyperparathyroidism (PHPT) is a common endocrine disorder usually due to hyperfunctioning parathyroid glands (HP). Surgical removal of HP is the main treatment in PHPT, particularly in symptomatic patients. The correct detection and localization of HP is challenging and crucial as it may guide surgical treatment in patients with PHPT. To date, different imaging methods have been used to detect and localize HP in patients with PHPT including radiology, nuclear medicine and hybrid techniques...
June 23, 2017: Minerva Endocrinologica
https://www.readbyqxmd.com/read/28648505/hypothyroidism-associated-with-parathyroid-disorders
#2
REVIEW
Giovanna Mantovani, Francesca Marta Elli, Sabrina Corbetta
Hypothyroidism may occur in association with congenital parathyroid disorders determining parathyroid hormone insufficiency, which is characterized by hypocalcemia and concomitant inappropriately low secretion of parathormone (PTH). The association is often due to loss of function of genes common to thyroid and parathyroid glands embryonic development. Hypothyroidism associated with hypoparathyroidism is generally mild and not associated with goiter; moreover, it is usually part of a multisystemic involvement not restricted to endocrine function as occurs in patients with 22q11 microdeletion/DiGeorge syndrome, the most frequent disorders...
March 2017: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/28648114/pseudohypoparathyroidism-type-1b-a-rare-cause-of-tetany-case-report
#3
Catarina Garcia, Cátia R Correia, Lurdes Lopes
Pseudohypoparathyroidism (PHP) is a rare group of disorders characterised by end-organ resistance to the parathyroid hormone (PTH). A 16-year-old boy presented with a 2-year history of involuntary dystonic movements involving mainly the left hand, initially after writing and later during physical exercise. Serum calcium was 1.37 mmol/L (2.20-2.69), phosphate 2.1 mmol/L (0.8-1.45) and PTH 302 ng/L (12-88). CT scan of the head demonstrated multiple subcortical and diffuse basal ganglia calcifications. Genetic analysis confirmed a methylation defect in the GNAS cluster on chromosome 20q13...
June 26, 2017: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/28646995/executive-summary-of-the-2017-kdigo-chronic-kidney%C3%A2-disease-mineral-and-bone-disorder-ckd-mbd-guideline-update-what-s-changed-and-why-it-matters
#4
Markus Ketteler, Geoffrey A Block, Pieter Evenepoel, Masafumi Fukagawa, Charles A Herzog, Linda McCann, Sharon M Moe, Rukshana Shroff, Marcello A Tonelli, Nigel D Toussaint, Marc G Vervloet, Mary B Leonard
The KDIGO 2017 Clinical Practice Guideline Update for the Diagnosis, Evaluation, Prevention, and Treatment of CKD-MBD represents a selective update of the prior CKD-MBD Guideline published in 2009. This update, along with the 2009 publication, is intended to assist the practitioner caring for adults and children with chronic kidney disease (CKD), those on chronic dialysis therapy, or individuals with a kidney transplant. This review highlights key aspects of the 2017 CKD-MBD Guideline Update, with an emphasis on the rationale for the changes made to the original guideline document...
July 2017: Kidney International
https://www.readbyqxmd.com/read/28643676/-asymptomatic-primary-hyperparathyroidism-in-women
#5
Francisco R Spivacow, Claudia Palumbo
Primary hyperparathyroidism may have different characteristics. One is the asymptomatic form. This is a mild variant of hypercalcemic hyperparathyroidism, characterized by a calcemia not greater than 1 mg/dl above the upper limit of the method, a high intact parathyroid hormone (iPTH), absence of renal stones, renal function impairement, and osteoporosis, less than 50 years of age, and less than 400 mg/day calciuria. It is not a surgical entity, but its evolution may require it. Twenty-four postmenopausal women, all older than 50 years, with a diagnosis of asymptomatic hyperparathyroidism, were studied...
2017: Medicina
https://www.readbyqxmd.com/read/28643486/comparison-of-intact-pth-and-bio-intact-pth-assays-among-non-dialysis-dependent-chronic-kidney-disease-patients
#6
Yael Einbinder, Sydney Benchetrit, Eliezer Golan, Tali Zitman-Gal
BACKGROUND: The third-generation bio-intact parathyroid hormone (PTH) (1-84) assay was designed to overcome problems associated with the detection of C-terminal fragments by the second-generation intact PTH assay. The two assays have been compared primarily among dialysis populations. The present study evaluated the correlations and differences between these two PTH assays among patients with chronic kidney disease (CKD) stages 3 to 5 not yet on dialysis. METHODS: Blood samples were collected from 98 patients with CKD stages 3 to 5...
September 2017: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/28642759/biodistribution-and-efficacy-of-human-adipose-derived-mesenchymal-stem-cells-following-intranodal-administration-in-experimental-colitis
#7
Mercedes Lopez-Santalla, Pablo Mancheño-Corvo, Amelia Escolano, Ramon Menta, Olga DelaRosa, Jose Luis Abad, Dirk Büscher, Juan M Redondo, Juan A Bueren, Wilfried Dalemans, Eleuterio Lombardo, Marina I Garin
Mesenchymal stem cells (MSCs) have a large potential in cell therapy for treatment of inflammatory and autoimmune diseases, thanks to their immunomodulatory properties. The encouraging results in animal models have initiated the translation of MSC therapy to clinical trials. In cell therapy protocols with MSCs, administered intravenously, several studies have shown that a small proportion of infused MSCs can traffic to the draining lymph nodes (LNs). This is accompanied with an increase of different types of regulatory immune cells in the LNs, suggesting the importance of migration of MSCs to the LNs in order to contribute to immunomodulatory response...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28630081/calcium-sensing-receptor-genotype-and-response-to-cinacalcet-in-patients-undergoing-hemodialysis
#8
Sharon M Moe, Leah Wetherill, Brian Scott Decker, Dongbing Lai, Safa Abdalla, Jin Long, Matteo Vatta, Tatiana M Foroud, Glenn M Chertow
BACKGROUND AND OBJECTIVES: We tested the hypothesis that single nucleotide polymorphisms (SNPs) in the calcium-sensing receptor (CASR) alter the response to the calcimimetic cinacalcet. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We analyzed DNA samples in the Evaluation of Cinacalcet HCl Therapy to Lower Cardiovascular Events (EVOLVE) trial, a randomized trial comparing cinacalcet to placebo on a background of usual care. Of the 3883 patients randomized, 1919 (49%) consented to DNA collection, and samples from 1852 participants were genotyped for 18 CASR polymorphisms...
June 19, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28617975/incidence-of-parathyroid-disorders-in-an-indian-adult-male-population-a-25-year-follow-up-study
#9
K V S Hari Kumar, S K Patnaik
CONTEXT AND OBJECTIVE: Detailed information on the epidemiology of parathyroid disorders in India is lacking. Most of the available data pertain to primary hyperparathyroidism (PHPT) rather than the overall burden of parathyroid disorders. We studied the incidence of parathyroid disorders in a cohort of service personnel followed for a long duration. DESIGN, SETTING AND PATIENTS: The data for this retrospective, descriptive epidemiological study were derived from the electronic medical records (EMR) of health care personnel enrolled between 1990 and 2015...
June 15, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28606051/comparison-of-bone-mineral-density-in-common-variable-immunodeficiency-and-x-linked-agammaglobulinaemia-patients
#10
Ali Mohebbi, Gholamreza Azizi, Naeimeh Tavakolinia, Mehdi Karimipour, Fatemeh Kiaee, Reza Yazdani, Sareh Sadat Ebrahimi, Hosein Rafiemanesh, Vahid Ziaee, Hassan Abolhassani, Asghar Aghamohammadi, Farzaneh Abbasi, Fatemeh Sayarifard, Mehran Ebrahimi, Javad Tafaroji
BACKGROUND: Primary antibody deficiency (PAD) is the most common group of primary immunodeficiency disorders, resulting from different defects in development and function of B cell lineage. Common variable immunodeficiency (CVID) and X-linked agammaglobulinemia (XLA) are two of the major types of PADs. Optimal growth and subsequently bone health could potentially compromise due to the interference of several factors in PAD with childhood onset. In the present study, our aim was to evaluate bone mineral density (BMD) of patients with CVID and XLA...
June 11, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/28599401/the-frequency-of-bone-fractures-among-patients-with-chronic-kidney-disease-not-on-dialysis-two-year-follow-up
#11
Andreja Figurek, Vlastimir Vlatkovic, Dragan Vojvodic, Branislav Gasic, Milorad Grujicic
INTRODUCTION: Renal osteodystrophy is a severe complication of chronic kidney disease (CKD) that increases morbidity and mortality in these patients. Mineral and bone disorder starts early in CKD and affects the incidence of bone fractures. The aim of this study was to observe the frequency of diverse bone fractures in patients with CKD not on dialysis. METHODS: This cohort study included 68 patients, that were followed during the two-year period. The patients were divided in two cohorts: one that developed bone fractures and the other that did not...
May 22, 2017: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
https://www.readbyqxmd.com/read/28598460/hypercalcemia-due-to-nasopharyngeal-carcinoma
#12
S Chaudhary, J P Sah
Hypercalcemia is a rare metabolic disorder associated with hyperparathyroidism, malignancy and various other causes. Although common in adult malignancies, hypercalcemia is rare in pediatrics and purports poor prognosis. Nasopharyngeal carcinoma is rare with no reported hypercalcemic presentation. We present here a case of hypercalcemia in a child of nasopharyngeal carcinoma. A 10 year girl presented with backache for 1 month, epistaxis, cough, chest-pain for 1 week alongwith anorexia and weight loss. Investigations revealed anemia and hypercalcemia (23mg/dl; normal range 9-11 mg/dl) with hyperphosphatemia, normal parathyroid levels...
January 2017: JNMA; Journal of the Nepal Medical Association
https://www.readbyqxmd.com/read/28587998/clinical-and-genetic-analysis-of-two-chinese-families-with-vitamin-d-dependent-rickets-type-ia-and-follow-up
#13
Chen Ruimin, Li Yunfei, Yuan Xin, Lin Xiangquan, Yang Xiaohong, Zhang Ying
OBJECTIVE: Vitamin D-dependent rickets type IA (VDDR-IA) is a rare autosomal recessive disorder characterized by the early onset of severe rickets. The objectives of this study were twofold: 1) to analyze the clinical characteristics and therapy of two patients with VDDR-IA from two separate Chinese family, and 2) investigate the CYP27B1 gene in two large pedigrees. METHODS: Medical history, clinical manifestations, physical examination, radiological findings and laboratory data were analyzed from two patients with VDDR-IA...
June 7, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/28573386/uremic-toxicity-and-bone-in-ckd
#14
REVIEW
Suguru Yamamoto, Masafumi Fukagawa
Patients with chronic kidney disease (CKD), especially those on dialysis treatment, are at high risk of bone fracture. In CKD-mineral and bone disorder (CKD-MBD), secondary hyperparathyroidism in patients with advanced CKD induces bone abnormalities, and skeletal resistance to parathyroid hormone (PTH) starts in the early stages of kidney disease. Uremic toxins such as indoxyl sulfate and p-cresyl sulfate reduce the expression of PTH receptor as well as PTH-induced cyclic adenosine 3',5' monophosphate production in osteoblasts...
June 1, 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/28558021/interactions-of-sclerostin-with-fgf23-soluble-klotho-and-vitamin-d-in-renal-transplantation
#15
Lida Tartaglione, Marzia Pasquali, Silverio Rotondi, Maria Luisa Muci, Cristiana Leonangeli, Alessio Farcomeni, Valeria Fassino, Sandro Mazzaferro
Relationships of Sclerostin, a bone anti-anabolic protein, with biomarkers of mineral bone disorders in chronic kidney disease are still unsettled, in particular in kidney transplant (KTR). In 80 KTR patients (31F/49M, 54.7±10.3 years) we studied the relationships of serum Sclerostin with eGFR, Calcium, Phosphate, Alkaline Phosphatase (AP), intact Parathyroid hormone (iPTH), soluble alpha-Klotho (sKlotho), intact Fibroblast Growth Factor 23 (iFGF23), 25-hydroxyvitamin D(25D) and 1,25-dihydroxyvitamin D (1,25D)...
2017: PloS One
https://www.readbyqxmd.com/read/28540603/positioning-novel-biologicals-in-ckd-mineral-and-bone-disorders
#16
REVIEW
Lida Tartaglione, Marzia Pasquali, Silverio Rotondi, Maria Luisa Muci, Adrian Covic, Sandro Mazzaferro
Renal osteodystrophy (ROD), the histologic bone lesions of chronic kidney disease (CKD), is now included in a wider syndrome with laboratory abnormalities of mineral metabolism and extra-skeletal calcifications or CKD-mineral and bone disorders (CKD-MBD), to highlight the increased burden of mortality. Aging people, frequently identified as early CKD, could suffer from either the classical age-related osteoporosis (OP) or ROD. Distinguishing between these two bone diseases may not be easy without bone biopsy...
May 24, 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/28540270/fgf-23-klotho-and-vitamin-d-levels-in-scleroderma
#17
Ravan Ahmadi, Mehrzad Hajialilo, Amir Ghorbanihaghjo, Ali Mota, Sina Raeisi, Nasrin Bargahi, Mohammad Valilo, Farahnaz Askarian
BACKGROUND: Scleroderma is a chronic connective tissue disease of unknown etiology. Vitamin D and parathyroid hormone (PTH) that play particular functions in calcium and phosphate homeostasis may be involved in the etiology of this disorder. Klotho, the co-receptor of the fibroblast growth factor 23 (FGF-23), can interfere with calcium and phosphate metabolism. The purpose of this study was to evaluate serum Klotho, FGF-23, intact PTH (iPTH) and vitamin D levels in scleroderma patients compared with the healthy controls...
April 2017: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/28508128/the-cardiothoracic-ratio-and-all-cause-and-cardiovascular-disease-mortality-in-patients-undergoing-maintenance-hemodialysis-results-of-the-mbd-5d-study
#18
Hiroaki Ogata, Junji Kumasawa, Shingo Fukuma, Masahide Mizobuchi, Eriko Kinugasa, Masafumi Fukagawa, Shunichi Fukuhara, Tadao Akizawa
BACKGROUND: The cardiothoracic ratio (CTR) is a non-invasive left ventricular hypertrophy index. However, whether CTR associates with cardiovascular disease (CVD) and mortality in hemodialysis (HD) populations is unclear. METHODS: Using a Mineral and Bone disorder Outcomes Study for Japanese CKD Stage 5D Patients (MBD-5D Study) subcohort, 2266 prevalent HD patients (age 62.8 years, female 38.0%, HD duration 9.4 years) with secondary hyperparathyroidism (SHPT) whose baseline CTR had been recorded were selected...
May 15, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/28501573/alterations-of-dna-methylation-in-parathyroid-tumors
#19
REVIEW
Vito Guarnieri, Lucia Anna Muscarella, Chiara Verdelli, Sabrina Corbetta
Parathyroid tumors are common endocrine neoplasias associated with primary hyperparathyroidism, a metabolic disorder characterized by parathormone hypersecretion. Parathyroid neoplasia are frequently benign adenomas or multiple glands hyperplasia, while malignancies are rare. The epigenetic scenario in parathyroid tumors has just begun to be decoded: DNA methylation, histones and chromatin modifiers expression have been investigated so far. The main findings suggest that DNA methylation and chromatin remodeling are active and deregulated in parathyroid tumors, cooperating with genetic alterations to drive the tumor phenotype: the tumor suppressors menin and parafibromin, involved in parathyroid tumorigenesis, interact with chromatin modifiers, defining distinct epigenetic derangements...
May 10, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28497091/restless-leg-syndrome-in-chronic-hemodialysis-patients-in-mashhad-hemodialysis-centers
#20
Niloufar Zadeh Saraji, Maryam Hami, Reza Boostani, Mohammad Javad Mojahedi
Introduction: Restless leg syndrome (RLS) is a sensory motor disorder. Patients with this syndrome have serious and uncontrollable desire to move their legs, which is mostly due to an uncomfortable feeling intensified when they are motionless. It may be a genetic disorder or secondary to iron deficiency, neurodegenerations, pregnancy, some drugs and severe kidney diseases. Objectives: This study was designed to find out the prevalence and its risk factors of RLS in hemodialysis patients. Patients and Methods: This multicenter cross-sectional study was done on 260 hemodialysis patients...
2017: Journal of Renal Injury Prevention
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