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https://www.readbyqxmd.com/read/29764626/25-hydroxvitamin-d-concentrations-are-not-lower-in-children-with-bronchial-asthma-atopic-dermatitis-obesity-or-attention-deficient-hyperactivity-disorder-than-in-healthy-children
#1
Thomas Reinehr, Christian Langrock, Eckard Hamelmann, Thomas Lücke, Cordula Koerner-Rettberg, Martin Holtmann, Tanja Legenbauer, Stephanie Gest, Mirjam Frank, Börge Schmidt, Katharina Radkowski, Karl-Heinz Jöckel
Vitamin D (vitD) is involved in immune regulation, and its receptor has been identified in several tissues including lung, adipose tissue, brain, and skin. Based on these observations, it has been suggested that vitD has an essential role not only in bone metabolism but also in other diseases such as atopic dermatitis (AD), bronchial asthma (BA), attention-deficit/hyperactivity disorder (ADHD), and obesity because the affected tissues express vitD receptors. Furthermore, obesity, AD, and BA are regarded as inflammatory diseases...
April 2018: Nutrition Research
https://www.readbyqxmd.com/read/29763365/effect-of-cross-linked-chitosan-iron-iii-on-vascular-calcification-in-uremic-rats
#2
Barbara Bruna Abreu de Castro, Wander Barros do Carmo, Paulo Giovani de Albuquerque Suassuna, Moises Carminatti, Julia Bianchi Brito, Wagner Vasques Dominguez, Ivone Braga de Oliveira, Vanda Jorgetti, Melani Ribeiro Custodio, Helady Sanders-Pinheiro
Cross-linked chitosan iron (III) is a chitin-derived polymer with a chelating effect on phosphorus, but it is untested in vascular calcification. We evaluated this compound's ability to reduce hyperphosphatemia and its effect on vascular calcification in uremic rats using an adenine-based, phosphorus-rich diet for seven weeks. We used a control group to characterize the uremia. Uremic rats were divided according the treatment into chronic kidney disease, CKD-Ch-Fe(III)CL (CKD-Ch), CKD-calcium carbonate, or CKD-sevelamer groups...
May 2018: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29760049/insulin-suppresses-the-production-of-fibroblast-growth-factor-23-fgf23
#3
Ludmilla Bär, Martina Feger, Abul Fajol, Lars-Oliver Klotz, Shufei Zeng, Florian Lang, Berthold Hocher, Michael Föller
Fibroblast growth factor 23 (FGF23) is produced by bone cells and regulates renal phosphate and vitamin D metabolism, as well as causing left ventricular hypertrophy. FGF23 deficiency results in rapid aging, whereas high plasma FGF23 levels are found in several disorders, including kidney or cardiovascular diseases. Regulators of FGF23 production include parathyroid hormone (PTH), calcitriol, dietary phosphate, and inflammation. We report that insulin and insulin-like growth factor 1 (IGF1) are negative regulators of FGF23 production...
May 14, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29755708/growth-and-endocrine-function-in-tunisian-thalassemia-major-patients
#4
Naouel Guirat Dhouib, Monia Ben Khaled, Monia Ouederni, Habib Besbes, Ridha Kouki, Fethi Mellouli, Mohamed Bejaoui
β-thalassemia major (β-TM) is among the most common hereditary disorders imposing high expenses on health-care system worldwide. The patient's survival is dependent on lifetime blood transfusion which leads to iron overload and its toxicity in various organs including endocrine glands. This article provides an overview of endocrine disorders in beta-TM patients. This single center investigation enrolled 28 β-TM patients (16 males, 12 females) regularly transfused with packed red cell since early years of life...
2018: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/29753400/updates-on-the-mechanisms-and-the-care-of-cardiovascular-calcification-in-chronic-kidney-disease
#5
REVIEW
Lucie Hénaut, Jean-Marc Chillon, Saïd Kamel, Ziad A Massy
In chronic kidney disease (CKD), the progressive decrease in renal function leads to disturbances of mineral metabolism that generally cause secondary hyperparathyroidism. The increase in serum parathyroid hormone is associated with reduced serum calcium and calcitriol levels and/or increased serum fibroblast growth factor-23 and phosphate levels. The resulting CKD-associated disorder of mineral and bone metabolism is associated with various other metabolic dysregulations such as acidosis, malnutrition, inflammation, and accumulation of uremic toxins...
May 2018: Seminars in Nephrology
https://www.readbyqxmd.com/read/29748907/effect-of-combined-vitamin-d-receptor-activator-and-lanthanum-carbonate-on-serum-fibroblast-growth-factor-23-level-in-predialysis-patients-cvd-laf-study-design-and-method
#6
Eri Ito, Daijo Inaguma, Shigehisa Koide, Kazuo Takahashi, Hiroki Hayashi, Midori Hasegawa, Yukio Yuzawa
BACKGROUND: Whether vitamin D receptor activator (VDRA) use is beneficial in chronic kidney disease (CKD) is unclear, because it is possible that VDRA increases serum fibroblast growth factor 23 (FGF23) levels. We will conduct a randomized controlled trial in predialysis patients to determine the effect of VDRA alone or in combination with lanthanum carbonate (LC) on serum FGF23 levels. METHODS: This is a single-center, open-label, randomized controlled trial. Enrollment will commence February 1, 2018, using the following inclusion criteria: (1) age ≥ 20 years, (2) CKD with an estimated glomerular filtration rate of 10-45 mL/min/1...
May 10, 2018: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/29741651/serum-phosphate-optimal-timing-and-range-associated-with-patients-survival-in-haemodialysis-the-cosmos-study
#7
José L Fernández-Martín, Adriana Dusso, Pablo Martínez-Camblor, Maria P Dionisi, Jürgen Floege, Markus Ketteler, Gérard London, Francesco Locatelli, José L Górriz, Boleslaw Rutkowski, Willem-Jan Bos, Christian Tielemans, Pierre-Yves Martin, Rudolf P Wüthrich, Drasko Pavlovic, Miha Benedik, Diego Rodríguez-Puyol, Juan J Carrero, Carmine Zoccali, Jorge B Cannata-Andía
Background: Serum phosphate is a key parameter in the management of chronic kidney disease-mineral and bone disorder (CKD-MBD). The timing of phosphate measurement is not standardized in the current guidelines. Since the optimal range of these biomarkers may vary depending on the duration of the interdialytic interval, in this analysis of the Current management of secondary hyperparathyroidism: a multicentre observational study (COSMOS), we assessed the influence of a 2- (midweek) or 3-day (post-weekend) dialysis interval for blood withdrawal on serum levels of CKD-MBD biomarkers and their association with mortality risk...
May 7, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29738034/evaluation-of-prevalence-biochemical-profile-and-drugs-associated-with-chronic-kidney-disease-mineral-and-bone-disorder-in-11-dialysis-centers
#8
Rodrigo Reis Abrita, Beatriz Dos Santos Pereira, Neimar da Silva Fernandes, Renata Abrita, Rosalia Maria Nunes Henriques Huaira, Marcus Gomes Bastos, Natália Maria da Silva Fernandes
INTRODUCTION: The diagnosis and treatment of mineral and bone disorder of chronic kidney disease (CKD-MBD) is a challenge for nephrologists and health managers. The aim of this study was to evaluate the prevalence, biochemical profile, and drugs associated with CKD-MBD. METHODS: Cross-sectional study between July and November 2013, with 1134 patients on dialysis. Sociodemographic, clinical, and laboratory data were compared between groups based on levels of intact parathyroid hormone (iPTH) (< 150, 150-300, 301-600, 601-1000, and > 1001 pg/mL)...
May 7, 2018: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29737315/applicability-of-transoral-endoscopic-parathyroidectomy-through-vestibular-route-for-primary-sporadic-hyperparathyroidism-a-south-indian-experience
#9
P R K Bhargav, M Sabaretnam, V Amar, N Vimala Devi
Introduction: Primary hyperparathyroidism is one of the most common endocrine disorders requiring surgical parathyroidectomy for its definitive treatment. Surgical exploration is traditionally performed through conventional open neck approach. A wide range of minimal access and minimally invasive endoscopic techniques (gas less and with gas) have been attempted in the past two decades. In this context, we evaluated the feasibility and safety of an innovative transoral endoscopic parathyroidectomy (EP) technique, which represents a paradigm shift in transluminal endocrine surgery...
May 4, 2018: Journal of Minimal Access Surgery
https://www.readbyqxmd.com/read/29734949/a-case-of-hyperparathyroidism-associated-parkinsonism-successfully-treated-with-cinacalcet-hydrochloride-a-calcimimetic
#10
Yuichiro Ohya, Masato Osaki, Shota Sakai, Shunsuke Kimura, Chiharu Yasuda, Tetsuro Ago, Takanari Kitazono, Shuji Arakawa
BACKGROUND: Some metabolic disorders, including abnormal calcium metabolism, can develop and worsen parkinsonism. However, whether hyperparathyroidism can cause parkinsonism remains controversial. CASE PRESENTATION: An 83-year-old woman with a history of right thalamic hemorrhage and drug-induced parkinsonism, was admitted due to worsening of parkinsonian symptoms including mask-like face, bradykinesia, freezing of gait, and rigidity. She had been diagnosed with autoimmune hepatitis and was being treated with prednisolone...
May 7, 2018: BMC Neurology
https://www.readbyqxmd.com/read/29725779/expansive-renal-osteitis-fibrosa-a-case-report
#11
Gabriel Silva Andrade, Abrahão Cavalcante Gomes de Souza Carvalho, Tibério Gomes Magalhães, Edson Luiz Cetira Filho, Roberta Barroso Cavalcante, Renato Luiz Maia Nogueira
Hyperparathyroidism (HPT) is an endocrine metabolic disorder characterized by increased secretion of parathyroid hormone. Untreated secondary HPT leads to renal osteodystrophy (ROD). Facial skeletal abnormalities in patients with ROD are rare. The purpose of this paper is to report a conservative surgical approach of exuberant osteitis fibrosa lesions in patient with chronic kidney disease. A 24-year-old female was referred to maxillofacial surgery department with giants ROD affecting palate, maxilla, and mandible, resulting in esthetic and functional impairment...
May 4, 2018: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29704936/associations-between-single-nucleotide-polymorphisms-in-the-calcium-sensing-receptor-and-chronic-kidney-disease-mineral-and-bone-disorder-in-cats
#12
R F Geddes, R E Jepson, Y Forcada, J Elliott, H M Syme
Feline chronic kidney disease (CKD) is associated with high variability in severity of CKD-mineral and bone disorder (CKD-MBD). The calcium sensing receptor (CaSR) regulates circulating parathyroid hormone (PTH) and calcium concentrations. Single nucleotide polymorphisms (SNPs) in the CaSR are associated with severity of secondary renal hyperparathyroidism and total calcium concentrations in human patients receiving haemodialysis. The objective of this study was to explore associations between polymorphisms in the feline CaSR (fCaSR) and biochemical changes observed in CKD-MBD...
May 2018: Veterinary Journal
https://www.readbyqxmd.com/read/29703633/oral-versus-intravenous-iron-supplementation-for-the-treatment-of-iron-deficiency-anemia-in-patients-on-maintenance-hemodialysis-effect-on-fibroblast-growth-factor-23-metabolism
#13
Wataru Fukao, Yukiko Hasuike, Tomo Yamakawa, Kazuhiro Toyoda, Makoto Aichi, Satoko Masachika, Mari Kantou, Shoko Ikeda Takahishi, Takahide Iwasaki, Mana Yahiro, Masatoshi Nanami, Yasuyuki Nagasawa, Takahiro Kuragano, Takeshi Nakanishi
OBJECTIVE: Iron administration affects serum levels of intact (I-) fibroblast growth factor-23 (FGF23) and its cleavage product C-terminal (C-) FGF23 in iron-deficient patients on maintenance hemodialysis (MHD). The objective of this study was to compare the effect of oral or intravenous iron administration on serum levels of I-FGF23 and C-FGF23 in iron-deficient patients on MHD. DESIGN AND METHODS: A prospective randomized study. SUBJECTS: Participants on MHD with severe iron deficiency (n = 61)...
April 24, 2018: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/29696042/bone-metabolism-disorder-in-epileptic-children
#14
MAaryam Nakhaee Moghadam, Alireza Teimouri, Ali Khajeh, Seyed Bahare Hoseini
Objective: There are frequent anti-epileptic drugs used in management of epilepsy. Anti-epileptic drugs may have some complications on bone and vitamin D metabolism. This study aimed to comparison the bone metabolism disorder in epileptic children with healthy child in Zahedan, eastern Iran from Jul 2014 to Jun 2015. Materials & Methods: This case-control study was performed on bone metabolism disorder in epileptic children between 2014-2015. Forty epileptic children were enrolled based on accessibility scheme and 40 participants randomly selected for control group from those referred to the pediatric ward and clinic of Ali Ebn Abi Talib Hospital and Ali Asghar Clinic in Zahedan City, Sistan & Baluchestan Province, eastern Iran...
2018: Iranian Journal of Child Neurology
https://www.readbyqxmd.com/read/29681636/parkinsonism-as-presenting-symptom-of-primary-hyperparathyroidism-improvement-after-surgery
#15
Delia Luján-Martínez, Ángela Sánchez-Cifuentes, Emilio Peña-Ros, Antonio Albarracín-Marín-Blázquez, Mari Fe Candel-Arenas
Introduction: Hypercalcemia can cause different neurological disorders, depending on the calcium level. We report an exceptional case of primary hyperparathyroidism presenting as neurological alteration and it has favourable outcome after parathyroidectomy. Case report: A 74-year-old woman presented with progressive cognitive deterioration and impaired motor function. The complementary tests showed hypercalcemia due to a parathyroid adenoma. Parathyroidectomy was performed with symptomatic improvement...
2018: Cirugia y Cirujanos
https://www.readbyqxmd.com/read/29665846/correlation-of-serum-levels-of-fibroblast-growth-factor-23-and-klotho-protein-levels-with-bone-mineral-density-in-maintenance-hemodialysis-patients
#16
Shubei Zheng, Yan Chen, Yu Zheng, Zhihong Zhou, Zhanyuan Li
OBJECTIVE: The correlation of serum fibroblast growth factor 23 (FGF-23) and Klotho protein levels with bone mineral density (BMD) in maintenance hemodialysis (MHD) patients was analyzed. METHODS: Between January 2015 and November 2015, 125 MHD patients in our hospital were enrolled. Dual-energy X-ray absorptiometry was used to examine the BMD in the femoral neck and lumbar spine of MHD patients. The patients were divided into three groups: a normal bone mass group, an osteopenia group, and an osteoporosis group...
April 17, 2018: European Journal of Medical Research
https://www.readbyqxmd.com/read/29662200/targeting-sphingosine-1-phosphate-lyase-as-an-anabolic-therapy-for-bone-loss
#17
Sarah Weske, Mithila Vaidya, Alina Reese, Karin von Wnuck Lipinski, Petra Keul, Julia K Bayer, Jens W Fischer, Ulrich Flögel, Jens Nelsen, Matthias Epple, Marta Scatena, Edzard Schwedhelm, Marcus Dörr, Henry Völzke, Eileen Moritz, Anke Hannemann, Bernhard H Rauch, Markus H Gräler, Gerd Heusch, Bodo Levkau
Sphingosine-1-phosphate (S1P) signaling influences bone metabolism, but its therapeutic potential in bone disorders has remained unexplored. We show that raising S1P levels in adult mice through conditionally deleting or pharmacologically inhibiting S1P lyase, the sole enzyme responsible for irreversibly degrading S1P, markedly increased bone formation, mass and strength and substantially decreased white adipose tissue. S1P signaling through S1P2 potently stimulated osteoblastogenesis at the expense of adipogenesis by inversely regulating osterix and PPAR-γ, and it simultaneously inhibited osteoclastogenesis by inducing osteoprotegerin through newly discovered p38-GSK3β-β-catenin and WNT5A-LRP5 pathways...
April 16, 2018: Nature Medicine
https://www.readbyqxmd.com/read/29657879/primary-hyperparathyroidism-and-gougerot-disease
#18
Toumader Bouziane, Nadia Belmahi, Hanan El Ouahabi
Primary hyperparathyroidism (PHPT) is a common endocrine disorder caused by the overactivation of the parathyroid glands due to the autonomous production of the parathyroid hormone (PTH). The resultant hypercalcemia leads to a myriad of symptoms. Here we report the case of a 54-year-old female with a previous diagnosis of Gougerot disease, in whom clinical (diffuse bone pain, asthenia polydipsia, and polyuria) and laboratory features (calcium level, 3.1 mmol/L; phosphate level, 0.55 mmol/L; alkaline phosphatase level, 70 U/L; and intact PTH level, 1028...
March 2018: European Journal of Rheumatology
https://www.readbyqxmd.com/read/29627891/anabolic-agents-what-is-beyond-osteoporosis
#19
REVIEW
Y Liu, A E Levack, E Marty, O Or, B P Samuels, M Redko, J M Lane
Osteoporosis is a common skeletal disorder characterized by low bone mass, which leads to reduced bone strength and an increased risk of fractures. Anabolic agents have been shown to improve bone mass and decrease fracture risk in osteoporosis patients by directly stimulating osteoblasts to produce new bone. Currently, two anabolic agents are available in the USA: recombinantly produced teriparatide (TPTD), which is the fully active (1-34) amino active sequence of human parathyroid hormone (PTH), and abaloparatide (APTD), a synthetic analog of parathyroid hormone-related peptide (PTHrP)...
April 7, 2018: Osteoporosis International
https://www.readbyqxmd.com/read/29622714/hypocalcaemia-in-an-adult-the-importance-of-not-overlooking-the-cause
#20
Catarina Abrantes, Daniela Brigas, Hugo Jorge Casimiro, Margarida Madeira
A 58-year-old male patient was admitted at the São Bernardos's Hospital (Setúbal, Portugal) with generalised muscle spasms, dyspnoea, laryngospasm and bronchospasm in the context of severe hypocalcaemia. Despite efforts to correct serum calcium, it remained below average, leading to question the true cause of hypocalcaemia. Low parathyroid hormone and 25-hydroxyvitamin D, along with facial anomalies, palate defect and cognitive impairment with concomitant psychiatric disorder led to a suspicion of a DiGeorge/velocardiofacial/22q11...
April 5, 2018: BMJ Case Reports
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