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https://www.readbyqxmd.com/read/29221681/hypercalcemic-crisis-and-primary-hyperparathyroidism-cause-of-an-unusual-electrical-storm
#1
Tatiana Guimarães, Miguel Nobre Menezes, Diogo Cruz, Sónia do Vale, Armando Bordalo, Arminda Veiga, Fausto J Pinto, Dulce Brito
Hypercalcemia is a known cause of heart rhythm disorders, however its association with ventricular arrhythmias is rare. The authors present a case of a fifty-three years old male patient with a ischemic and ethanolic dilated cardiomyopathy, and severely reduced ejection fraction, carrier of cardiac resynchronization therapy (CRT) with cardioverter defibrillator (ICD), admitted in the emergency department with an electrical storm, with multiple appropriated ICD shocks, refractory to antiarrhythmic therapy. In the etiological investigation was documented severe hypercalcemia secondary to primary hyperparathyroidism undiagnosed until then...
December 5, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29221117/inhibition-of-chemerin-cmklr1-axis-in-neuroblastoma-cells-reduces-clonogenicity-and-cell-viability-in-vitro-and-impairs-tumor-growth-in-vivo
#2
Conny Tümmler, Igor Snapkov, Malin Wickström, Ugo Moens, Linda Ljungblad, Lotta Helena Maria Elfman, Jan-Olof Winberg, Per Kogner, John Inge Johnsen, Baldur Sveinbjørnsson
Pro-inflammatory cells, cytokines, and chemokines are essential in promoting a tumor supporting microenvironment. Chemerin is a chemotactic protein and a natural ligand for the receptors CMKLR1, GPR1, and CCRL2. The chemerin/CMKLR1 axis is involved in immunity and inflammation, and it has also been implicated in obesity and cancer. In neuroblastoma, a childhood tumor of the peripheral nervous system we identified correlations between high CMKLR1 and GPR1 expression and reduced overall survival probability. CMKLR1, GPR1, and chemerin RNA and protein were detected in neuroblastoma cell lines and neuroblastoma primary tumor tissue...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29219791/effects-of-the-vitamin-d-analog-2amd-in-cyclosporine-induced-nephrotoxicity-dose-response-and-antifibrotic-activity
#3
Bianca Tomasini-Johansson, Cori O'Brien, Alexandra Larson-Osborne, Inger Toraason, Debra Hullett, Lori Plum, Hector DeLuca, Hans Sollinger
OBJECTIVES: In this study, we aimed to ascertain the efficacy and determine the dose effects of a new analog of vitamin D, 2α-methyl-19-nor-(20S)-1α,25-dihydroxyvitamin D3 (2AMD), in decreasing fibrosis and improving renal function in a rat model of kidney disease. MATERIALS AND METHODS: Using the cyclosporine model of chronic kidney disease, we tested 4 dose regimens (2.5, 5, 10, and 20 ng/kg) of 2AMD by subcutaneous administration. The 2AMD analog was compared with another analog, 2-methylene-19-nor-(20S)-1α,25-dihydroxyvitamin D3 (2MD), given at 5 ng/kg...
December 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29218131/hypocalcemia-associated-with-subcutaneous-fat-necrosis-of-the-newborn-case-report-and-literature-review
#4
Alphonsus N Onyiriuka, Theodora E Utomi
Subcutaneous fat necrosis of the newborn (SCFNN) is a rare benign inflammatory disorder of the adipose tissue but may be complicated by hypercalcemia or less frequently, hypocalcemia, resulting in morbidity and mortality. Here we report the case of a neonate with subcutaneous fat necrosis who surprisingly developed hypocalcemia instead of hypercalcemia. A full-term female neonate was delivered by emergency cesarean section for fetal distress and was subsequently admitted to the Special Care Baby Unit. The mother's pregnancy was uncomplicated up to delivery...
November 2017: Oman Medical Journal
https://www.readbyqxmd.com/read/29216631/effect-of-cinacalcet-combined-with-calcitriol-on-the-clinical-outcome-and-bone-metabolism-in-patients-on-hemodialysis-with-severe-secondary-hyperparathyroidism
#5
Fang Yuan, Xing Chen, Chang Wang, Zheng Li, Hong Liu
OBJECTIVE: To observe the clinical outcome and the effect of bone metabolism of cinacalcet combined with calcitriol in maintenance hemodialysis (MHD) patients with severe secondary hyperparathyroidism (SHPT). METHODS: Thirty MHD patients with SHPT were enrolled into the study. All patients were given cinacalcet 25-75 mg and 0.5 μg calcitriol daily. Serum Ca, P, intact parathyroid hormone (iPTH), and bone metabolic markers were measured. The clinical symptoms and their changes were investigated...
December 7, 2017: Blood Purification
https://www.readbyqxmd.com/read/29215595/the-role-of-vitamin-d-in-non-scarring-alopecia
#6
REVIEW
Agnieszka Gerkowicz, Katarzyna Chyl-Surdacka, Dorota Krasowska, Grażyna Chodorowska
Non-scarring hair loss is a common problem that affects both male and female patients. Since any disturbances in the hair follicle cycle may lead to hair shedding, or alopecia, it is not surprising that the possible role of vitamin D in alopecia was investigated in many studies. Vitamin D has been shown to have many important functions. A growing body of evidence shows that vitamin D and its receptor are responsible for maintaining not only calcium homeostasis but also skin homeostasis. Moreover, vitamin D could also regulate cutaneous innate and adaptive immunity...
December 7, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29214384/dispensability-of-annual-laboratory-follow-up-after-more-than-2%C3%A2-years-of-valproic-acid-use-a-systematic-review
#7
REVIEW
Rosanne W Meijboom, Koen P Grootens
BACKGROUND: The necessity of annual laboratory follow-up in patients treated with valproic acid (VPA) is controversial. OBJECTIVE: We investigated the need for annual laboratory follow-up of liver enzymes, electrolytes, and full blood count (FBC) in patients treated with VPA. PATIENTS AND METHODS: A systematic search in Evidence-Based Medicine Reviews (EBMR), MEDLINE, and EMBASE was undertaken in December 2016 to identify all published articles investigating or citing valproic acid, liver function disorders, electrolyte disorders, and FBC deviations...
December 6, 2017: CNS Drugs
https://www.readbyqxmd.com/read/29212579/time-course-of-vitamin-d-depletion-and-repletion-in-reproductive-age-female-c57bl-6-mice
#8
Anthony M Belenchia, Sarah A Johnson, Alyssa C Kieschnick, Cheryl S Rosenfeld, Catherine A Peterson
The use of animal models in vitamin D deficiency (VDD) research, particularly in regard to maternal deficits, has increased dramatically, yet these studies may be confounded due to ill-conceived experimental timelines. We conducted 2 experiments to (1) characterize the time course of VDD induction and repletion and (2) explore the long-term consequences of VDD on calcium homeostasis and body composition in reproductive-age female mice. Eight-week-old female C57BL/6 mice were randomized to receive either a vitamin D sufficient (VDS) or VDD diet; serum was collected weekly...
December 1, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/29211870/osteonecrosis-of-the-jaw-and-rebound-hypercalcaemia-in-young-people-treated-with-denosumab-for-giant-cell-tumour-of-bone
#9
Suma Uday, Louie Gaston, Luke Rogers, Michael Parry, Johnathan Joffe, John Pearson, David Sutton, Robert Grimer, Wolfgang Högler
Context: Denosumab, an inhibitor of receptor activator of nuclear factor kappa-B ligand, is an approved treatment for giant cell tumour of bone (GCTB) in adults and 'skeletally mature' adolescents. Safety concerns include oversuppression of bone remodelling, with risk of osteonecrosis of the jaw [ONJ] and atypical femur fractures during treatment in adults, and rebound hypercalcaemia after treatment cessation in children. To date, ONJ has never been reported in children or adolescents...
December 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29211866/association-of-urinary-citrate-with-acid-base-status-bone-resorption-and-calcium-excretion-in-older-men-and-women
#10
M Kyla Shea, Bess Dawson-Hughes
Context: Elevated urine net acid excretion (NAE), indicative of subclinical metabolic acidosis, has been associated with higher bone turnover. While NAE is the gold-standard clinical measure of acid-base status, it is impractical to measure in most clinical/research settings. Urine citrate, which is commonly measured, changes in response to acid-base status, but its association with bone turnover is uncertain. Objective: To evaluate the association between change in urine citrate and change in bone turnover and calcium excretion...
December 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29210091/clinical-relevance-of-radiographic-linear-branching-mineral-opacities-in-the-canine-liver
#11
M-A Genain, A Barbosa, M Herrtage, P Watson
OBJECTIVES: To assess the prevalence, clinical significance and breed distribution of linear branching mineralisation superimposed on the hepatic radiographic silhouette in dogs. MATERIALS AND METHODS: Retrospective review of radiographs or ultrasound images of dogs showing branching mineralisation in the liver. RESULTS: Over the 30-year review period, 17 cases were identified and the mineralisation had a predominantly ventral distribution...
December 6, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/29209977/impact-of-oral-cadmium-intoxication-on-levels-of-different-essential-trace-elements-and-oxidative-stress-measures-in-mice-a-response-to-dose
#12
Narendra Kumar, Vandna Kumari, Chand Ram, Bagepalli Sathyanarayana Bharath Kumar, Sunita Verma
The study evaluated the effect of oral intoxication of cadmium and the possible causes of oxidative stress and its preferential accumulation in different organs as well as sub-sequential effects in mice. Twenty-four Swiss albino male mice were divided into three groups viz., normal control group without cadmium chloride (CdCl2), whereas a daily dose of 0.5 and 1.2 mg of CdCl2 was orally administered for a period of a week to dose group 1 (DG-1) and dose group 2 (DG-2), respectively. A significant increase in the severity of cadmium toxicity was observed in animals as evidenced by aggravation in liver enzymes viz...
December 6, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29209851/elevated-parathyroid-hormone-levels-after-successful-parathyroidectomy-for-primary-hyperparathyroidism-a-clinical-review
#13
REVIEW
Roberto de la Plaza Llamas, José Manuel Ramia Ángel, Vladimir Arteaga Peralta, Cristina García Amador, Aylhín Joana López Marcano, Aníbal Armando Medina Velasco, Begoña González Sierra, Alba Manuel Vázquez, Raquel Aránzazu Latorre Fragua
INTRODUCTION: Surgery for primary hyperparathyroidism (PHPT) is traditionally deemed to be successful if serum calcium levels return to normal 6 months after parathyroidectomy. Regular monitoring of serum calcium and parathyroid hormone (PTH) in the follow-up of patients after parathyroidectomy for PHPT has drawn attention to the presence of a normocalcemic group of patients with elevated PTH (NCePTH) during the post-operative period. The etiological factors and mechanisms underlying this condition, its consequences, and the possibility of treatment are the object of this study...
December 5, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29208769/association-between-the%C3%A2-timd4-havcr1-variants-and-serum-lipid-levels-coronary-heart-disease-and-ischemic-stroke-risk-and-atorvastatin-lipid-lowering-efficacy
#14
Qing-Hui Zhang, Rui-Xing Yin, Wu-Xian Chen, Xiao-Li Cao, Yu-Ming Chen
Little is known about the association of the TIMD4-HAVCR1 variants and lipid metablism, the risk of coronary heart disease (CHD) and ischemic stroke (IS). This study aimed to determine the TIMD4-HAVCR1 variants, their haplotypes and gene-environment interactions on serum lipid levels, the risk of CHD and IS, and the lipid-lowering efficacy of atorvastatin in a southern Chinese Han population. Genotypes of 3 variants in 622 controls, 579 CHD and 546 IS patients were determined by the Snapshot technology. Atorvastatin calcium tablet (20 mg/d) was given in 724 hyperlipidemic patients for 8 weeks after genotyping...
December 5, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/29208626/the-effect-of-extended-release-niacin-on-markers-of-mineral-metabolism-in-ckd
#15
Rakesh Malhotra, Ronit Katz, Andrew Hoofnagle, Andrew Bostom, Dena E Rifkin, Ruth Mcbride, Jeffrey Probstfield, Geoffrey Block, Joachim H Ix
BACKGROUND AND OBJECTIVES: Niacin downregulates intestinal sodium-dependent phosphate transporter 2b expression and reduces intestinal phosphate transport. Short-term studies have suggested that niacin lowers serum phosphate concentrations in patients with CKD and ESRD. However, the long-term effects of niacin on serum phosphate and other mineral markers are unknown. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: The Atherothrombosis Intervention in Metabolic Syndrome with Low HDL/High Triglycerides: Impact on Global Health Trial was a randomized, double-blind, placebo-controlled trial testing extended release niacin in persons with prevalent cardiovascular disease...
December 5, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/29208173/transforming-growth-factor-%C3%AE-1-gene-polymorphism-and-osteoporosis-in-postmenopausal-egyptian-women
#16
Inass M Taha, Azza M Abdu Allah, Maha A F Hamoudah, S Justin Carlus
Transforming growth factor-β1 (TGF-β1) is a wide spread bone matrix protein that affect the function, formation and cell-cell interactions of osteoclasts and osteoblasts to regulate bone remodeling and sustain adequate bone mass. The aim of this study is to evaluate the role of the two polymorphism of transforming growth factor-β1 T869C and C-509T in developing osteoporosis in postmenopausal Egyptian women. This study was performed on 138 postmenopausal osteoporosis/osteopenic women and 128 postmenopausal female control group...
November 30, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/29207152/increased-soluble-st2-and-il%C3%A2-4-serum-levels-are-associated-with-disease-severity-in-patients-with-membranous-nephropathy
#17
Zhihui Zhang, Xiaolei Liu, Haifeng Wang, Zhihui Qu, Rebecca Crew, Nan Zhang, Yanfang Jiang
The interleukin (IL)‑33/suppression of tumorigenicity 2 (ST2) axis regulates Th2 reactivity, and ST2 is the receptor for IL‑33. In this study, the roles of IL‑33 and soluble ST2 (sST2) in the pathogenesis of membranous nephropathy (MN), and their association with disease severity were evaluated. Serum levels of IL‑33 and sST2 in 93 patients, and 34 healthy controls (HCs) were measured by enzyme‑linked immunosorbent assays. Clinical characteristics were recorded and the estimated glomerular filtration rates (eGFRs) were computed...
November 22, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29205344/synergistic-actions-of-vitamin-d-and-metformin-on-skeletal-muscles-and-insulin-resistance-of-type-2-diabetic-rats
#18
REVIEW
Shaimaa N Amin, Usama K Hussein, Hanan D Yassa, Sherif S Hassan, Laila A Rashed
Diabetes Mellitus is a chronic generalized disorder due to insulin insufficiency or resistance. Skeletal muscles represent one of the most important target organs that is affected by insulin signaling. The aim of the current work was to investigate the effect of metformin versus vitamin D (and also simultaneous administration) therapy in type 2 diabetic (T2D) rats on the state of the muscle and insulin sensitivity. Thirty six male rats constituted the animal model and have been divided into five groups: control, Diabetic, Diabetic+Metformin, Diabetic+ VitaminD, Diabetic+Metformin+Vitamin D...
December 2, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29202858/molecular-and-biochemical-characterization-of-calmodulin-from-echinococcus-granulosus
#19
Ning Wang, Xiuqin Zhong, Xingju Song, Xiaobin Gu, Weiming Lai, Yue Xie, Xuerong Peng, Guangyou Yang
BACKGROUND: Echinococcus granulosus is a harmful cestode parasite that causes cystic echinococcosis in humans as well as various livestock species and wild animals. Calmodulin (CaM), a Ca2+ sensor protein, is widely expressed in eukaryotes and mediates a variety of cellular signaling activities. METHODS: In the present study, the cDNA encoding CaM in Echinococcus granulosus (rEgCaM) was successfully cloned and the molecular and biochemical characterizations carried out...
December 4, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29202484/usefulness-of-martin-s-method-for-estimation-of-low-density-lipoprotein-cholesterol-in-coronary-atherosclerosis
#20
Soie Chung
OBJECTIVE: This study was conducted to validate Martin's method in coronary atherosclerosis in comparison with Friedewald's equation. SUBJECTS AND METHODS: A total of 299 participants with a coronary artery calcium score (CACS) ≥ 300 and a serum triglyceride (TG) level < 400 mg/dL at Seoul National University Hospital Healthcare System Gangnam Center, Seoul, Korea were enrolled in this study. The Low-density lipoprotein cholesterol (LDL-C) was directly measured with a homogeneous assay (DLDL) and estimated by both Friedewald's equation (FLDL) and Martin's method (MLDL)...
December 4, 2017: Medical Principles and Practice: International Journal of the Kuwait University, Health Science Centre
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