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https://www.readbyqxmd.com/read/29026610/selective-blood-sampling-for-fgf-23-in-tumor-induced-osteomalacia
#1
Hans-Christof Schober, Christian Kneitz, Franziska Fieber, Kathrin Hesse, Henry Schroeder
Tumor-induced osteomalacia (TIO) is caused by the hormone fibroblast growth factor 23 (FGF-23). It is mainly produced in the tissue of mesenchymal tumors. Patients with TIO frequently suffer from a chronic decompensated pain syndrome and/or muscle weakness with postural deformity. Despite the severity of the disease, the diagnosis is frequently established late. In some cases, it takes several years to establish the condition. This case report concerning a 68-year old woman demonstrates the selective blood sampling for FGF-23 as path-breaking diagnostics to confirm the diagnosis of a neuroendocrine tumor...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/29022055/illness-perceptions-are-associated-with-quality-of-life-in-patients-with-fibrous-dysplasia
#2
B C J Majoor, C D Andela, C R Quispel, M Rotman, P D S Dijkstra, N A T Hamdy, A A Kaptein, N M Appelman-Dijkstra
Fibrous dysplasia (FD) is a rare bone disorder in which normal bone is replaced by fibrous tissue resulting in pain, deformities, pathological fractures or asymptomatic disease. Illness perceptions are patients' cognitions and emotions about their illness and its treatment, which may impact on Quality of Life (QoL). Here, we explore illness perceptions in patients with FD compared to other disorders, identify factors associated with illness perceptions and evaluate their relationship with QoL. Ninety-seven out of 138 eligible patients from the LUMC FD cohort completed the Illness Perception Questionnaire-Revised (IPQ-R) and the Short Form-36 (SF-36)...
October 11, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28993502/cardiovascular-effects-of-renal-distal-tubule-deletion-of-the-fgf-receptor-1-gene
#3
Xiaobin Han, Jed Ross, Ganesh Kolumam, Min Pi, Junichiro Sonoda, Gwendalyn King, L Darryl Quarles
The bone-derived hormone fibroblast growth factor-23 (FGF-23) activates complexes composed of FGF receptors (FGFRs), including FGFR1, and α-Klotho in the kidney distal tubule (DT), leading to increased sodium retention and hypertension. However, the role of FGFR1 in regulating renal processes linked to hypertension is unclear. Here, we investigated the effects of selective FGFR1 loss in the DT. Conditional knockout (cKO) of FGFR1 in the DT (FGFR1(DT-cKO) mice) resulted in left ventricular hypertrophy (LVH) and decreased kidney expression of α-Klotho in association with enhanced BP, decreased expression of angiotensin converting enzyme 2, and increased expression of the Na(+)-K(+)-2Cl(-) cotransporter...
October 9, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28991773/fibroblast-growth-factor-23-a-novel-biomarker-for-cardiovascular-disease-in-chronic-kidney-disease-patients
#4
REVIEW
Aikaterini Papagianni
Fibroblast Growth Factor (FGF)-23 increase is considered one of the earliest biochemical abnormalities in chronic kidney disease-mineral bone disorder (CKD-MBD). Furthermore, accumulating data have provided evidence of a link between increased FGF-23 levels and cardiovascular morbidity and mortality in CKD patients as well as in several other populations including cardiology patients and general population. The cellular and molecular mechanisms underlying the deleterious effect of FGF-23 on the cardiovascular system are not yet completely defined and are the focus of intense research...
September 1, 2017: Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki)
https://www.readbyqxmd.com/read/28973223/bone-turnover-markers-after-sleep-restriction-and-circadian-disruption-a-mechanism-for-sleep-related-bone-loss-in-humans
#5
Christine Swanson, Steven A Shea, Pamela Wolfe, Sean W Cain, Mirjam Munch, Nina Vujovic, Charles A Czeisler, Orfeu M Buxton, Eric S Orwoll
Context: Sleep abnormalities are associated with low bone mineral density (BMD). Underlying mechanisms are unknown. Objective: Investigate the impact of sleep restriction with circadian disruption on bone biomarkers. Hypothesis: Sleep/circadian disruption negatively alters bone turnover. Design: Intervention Study. Participants & Methods: Four bone biomarkers (CTX = bone resorption; P1NP = bone formation; sclerostin/FGF-23 = osteocyte function) were measured in bihourly serum samples over 24-h at baseline and after ∼3 weeks of sleep restriction (5...
July 26, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28971600/fgf23-level-and-intima-media-thickness-are-elevated-from-early-stages-of-chronic-kidney-disease
#6
Andreja Figurek, Goce Spasovski, Snjezana Popovic-Pejicic
Considering high cardiovascular (CV) risk in chronic kidney disease (CKD), the aim of this cross-sectional study was to assess the association between carotid intima-media thickness (IMT) and fibroblast growth factor (FGF) 23 as important players in CV pathophysiology. Eighty-seven patients with mean estimated glomerular filtration rate 40.1 mL/min per 1.73 m(2) were involved. FGF23 and IMT were elevated from early stages of CKD. Mean IMT value was 1.10 ± 0.20 mm, being significantly elevated starting from early CKD, showing no correlation with FGF23 (r = -0...
October 3, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28963390/acromegaly-with-hypophosphataemia-mccune-albright-syndrome
#7
Rimesh Pal, Pinaki Dutta, Kanchan Kumar Mukherjee, Anil Bhansali
A 38-year-old man presented with excessive height gain and progressive enlargement of the extremities since childhood. This was compounded by lower limb deformities over the past 5 years. On examination, his height was 196 cm, he had macroglossia, acral enlargement, seborrhoea, hyperhidrosis-suggesting acrogigantism. He had facial asymmetry, wind-swept deformity of lower limbs and a café-au-lait macule over his trunk. Investigations revealed normal-sized pituitary gland with dysplastic cranial bones. Isotope bone scintigraphy was suggestive of polyostotic fibrous dysplasia...
September 28, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28939209/calcium-and-bone-metabolism-indices
#8
Lu Song
Calcium and inorganic phosphate are of critical importance for many body functions, thus the regulations of their plasma concentrations are tightly controlled by the concerted actions of reabsorption/excretion in the kidney, absorption in the intestines, and exchange from bone, the major reservoir for calcium and phosphate in the body. Parathyroid hormone (PTH) and 1,25-dihydroxyvitamin D (1,25(OH)2D) control calcium homeostasis, whereas PTH, 1,25(OH)2D, and bone-derived fibroblast growth factor 23 (FGF 23) control phosphate homeostasis...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28919046/fgf23-activates-injury-primed-renal-fibroblasts-via-fgfr4-dependent-signalling-and-enhancement-of-tgf-%C3%AE-autoinduction
#9
Edward R Smith, Stephen G Holt, Tim D Hewitson
Bone-derived fibroblast growth factor 23 (FGF23) is an important endocrine regulator of mineral homeostasis with effects transduced by cognate FGF receptor (FGFR)1-α-Klotho complexes. Circulating FGF23 levels rise precipitously in patients with kidney disease and portend worse renal and cardiovascular outcomes. De novo expression of FGF23 has been found in the heart and kidney following injury but its significance remains unclear. Studies showing that exposure to chronically high FGF23 concentrations activates hypertrophic gene programs in the cardiomyocyte has spawned intense interest in other pathological off-target effects of FGF23 excess...
September 15, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28872612/fructus-ligustri-lucidi-in-osteoporosis-a-review-of-its-pharmacology-phytochemistry-pharmacokinetics-and-safety
#10
REVIEW
Beibei Chen, Lili Wang, Lin Li, Ruyuan Zhu, Haixia Liu, Chenyue Liu, Rufeng Ma, Qiangqiang Jia, Dandan Zhao, Jianzhao Niu, Min Fu, Sihua Gao, Dongwei Zhang
Background: Fructus Ligustri Lucidi (FLL) has now attracted increasing attention as an alternative medicine in the prevention and treatment of osteoporosis. This study aimed to provide a general review of traditional interpretation of the actions of FLL in osteoporosis, main phytochemical constituents, pharmacokinetics, pharmacology in bone improving effect, and safety. Materials and Methods: Several databases, including PubMed, China National Knowledge Infrastructure, National Science and Technology Library, China Science and Technology Journal Database, and Web of Science were consulted to locate publications pertaining to FLL...
September 5, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28846459/calcifediol-to-treat-secondary-hyperparathyroidism-in-patients-with-chronic-kidney-disease
#11
REVIEW
Andrea Galassi, Antonio Bellasi, Paola Ciceri, Francesca Pivari, Ferruccio Conte, Mario Cozzolino
Deranged vitamin D metabolism represents an active trigger of secondary hyperparathyroidism (SHPT) in CKD. Correction of 25(OH)D deficiency by nutritional Vitamin D administration is suggested by KDIGO guidelines, to prevent and treat SHPT in CKD stage G3-G5 and G1T-G5T patients, although with a still inconsistent background. Nutritional vitamin D is available as cholecalciferol, ergocalciferol, or calcifediol. Superiority of calcifediol in increasing 25(OH)D levels has been suggested due to its better bioavailability...
October 2017: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/28828171/serum-stweak-and-fgf-23-levels-in-hemodialysis-and-renal-transplant-patients
#12
H Eskandari Naji, A Ghorbanihaghjo, H Argani, S Raeisi, J Safa, A H Alirezaei, N Rashtchizadeh
BACKGROUND: Kidney transplantation is the treatment of choice for patients with end-stage renal disease. OBJECTIVE: To evaluate the changes in serum soluble TNF-like weak inducer of apoptosis (sTWEAK) and fibroblast growth factor 23 (FGF-23) in hemodialysis (HD) patients and renal transplant recipients (RTR). METHODS: Serum samples were obtained from 30 patients on chronic HD, 30 RTRs, and 30 normal controls. Biochemical factors, sTWEAK, FGF-23, and interlukin-6 (IL-6) were measured by standard methods...
2017: International Journal of Organ Transplantation Medicine
https://www.readbyqxmd.com/read/28803689/sun-exposure-influences-the-prognostic-power-of-components-of-mineral-metabolism-in-patients-with-coronary-artery-disease
#13
MULTICENTER STUDY
A Aceña, J A Franco-Peláez, C Gutierrez-Landaluce, A M Pello, C Cristóbal, N Tarín, A Huelmos, R Carda, M L Martín-Mariscal, J Alonso, E González-Parra, M L González-Casaus, Ó Lorenzo, L López Bescos, J Egido, J Tuñón
BACKGROUND AND AIM: Calcidiol (vitamin D metabolite) plasma levels vary with sun exposure (SE). However, it is not known if SE influences its prognostic ability. We have studied the effect of SE on plasma levels of the components of mineral metabolism (calcidiol, fibroblast growth factor-23 [FGF-23], parathormone [PTH], and phosphate [P]) and on their prognostic value in patients with coronary artery disease (CAD). METHODS AND RESULTS: We studied prospectively 704 patients with stable CAD...
September 2017: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/28792535/occurrence-and-severity-of-non-occlusive-mesenteric-ischemia-nomi-after-cardiovascular-surgery-correlate-with-preoperatively-assessed-fgf-23-levels
#14
Jonas Stroeder, Matthias Klingele, Hagen Bomberg, Stefan Wagenpfeil, Arno Buecker, Hans-Joachim Schaefers, Marcus Katoh, Peter Minko
PURPOSE: To evaluate the value of preoperatively assessed fibroblast growth factor 23 (FGF-23) levels and to correlate FGF-23 with angiographic findings in non-occlusive mesenteric (NOMI) ischemia using a standardized scoring system. MATERIALS AND METHODS: Between 2/2011 and 3/2012 a total of 865 patients (median age: 67 years) underwent cardiovascular surgery during this ethics committee approved, prospective study. 65 of these patients had clinical suspicion of NOMI and consequently underwent catheter angiography of the superior mesenteric artery...
2017: PloS One
https://www.readbyqxmd.com/read/28743343/-effects-of-multimodal-combination-dialysis-on-klotho-protein-fgf-23-and-bnp-in-patients-with-maintenance-hemodialysis
#15
Xiaofeng Deng, Qing Dai, Li Wan, Ling Tang, Yue Shu, Hengfen Xiao, Yuanyuan Bi, Hongfen Yang
OBJECTIVE: To discuss the effects of multimodal combination dialysis on Klotho protein, fibroblast growth factor-23 (FGF-23) and brain natriuretic peptide (BNP) in patients with maintenance hemodialysis (MHD). METHODS: A randomized controlled trial (RCT) was conducted. 120 patients who was diagnosed with chronic renal failure (CRF) uremia receiving MHD over 3 months admitted to Blood Purification Centre of Department of Nephrology of the Second People's Hospital of Guiyang from December 2015 to December 2016 were enrolled, who were randomly divided into hemodialysis (HD) group (HD for 8 times a month), HD + hemofiltration (HF) group (HD for 8 times a month + HF once a month), and HD + HF + hemoperfusion (HP) group (HD for 8 times a month + HF for 4 times a month + HP once a month), with 40 patients in each group...
July 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28743129/fibroblast-growth-factor-23-predicts-mortality-and-end-stage-renal-disease-in-a-canadian-asian-population-with-chronic-kidney-disease
#16
Ishwarlal Jialal, Fernando Camacho, Bharat Nathoo, Paul Tam, Roma Pahwa, George G Wu
BACKGROUND: Chronic kidney disease (CKD) is a leading cause of morbidity and mortality. Biomarkers that predict end-stage renal disease (ESRD) and/or mortality could usher in new therapeutics to halt this onslaught. While fibroblast growth factor (FGF)23 can predict both ESRD and mortality, it has not been studied in North American CKD patients of Asian ethnicity. METHOD: This is a prospective investigation about the role of FGF23 in 998 Canadian patients of Asian descent with CKD defined by an estimated glomerular filtration rate (eGFR) <60 mL/min/m2 and followed up for 3 years...
July 26, 2017: Nephron
https://www.readbyqxmd.com/read/28736564/characterization-of-an-animal-model-to-study-risk-factors-and-new-therapies-for-the-cardiorenal-syndrome-a-major-health-issue-in-our-aging-population
#17
Anja Verhulst, Ellen Neven, Patrick C D'Haese
BACKGROUND: The cardiorenal syndrome (CRS) is a major health problem in our aging population. The term was introduced to cover disorders of the kidneys and heart, whereby dysfunction of one organ may induce dysfunction of the other. As the natural history of the CRS is mostly slow, hence difficult to explore in clinical trials, adequate animal models combining cardiovascular and renal disease are required. Therefore, we developed and characterized a usable model for CRS type 4, i.e. chronic kidney disease (CKD) causing cardiac dysfunction...
June 2017: Cardiorenal Medicine
https://www.readbyqxmd.com/read/28724055/bone-turnover-after-bariatric-surgery
#18
Thalita Lima Melo, Leila Froeder, Leandro da Cunha Baia, Ita Pfeferman Heilberg
OBJECTIVE: The aim of the present study was to evaluate parameters of bone and mineral metabolism after bariatric surgery. SUBJECTS AND METHODS: This sectional study included data from medical records from 61 bariatric surgery (BS) patients (minimum period of 6 months after the procedure) and from 30 class II and III obese patients as a control group (Cont), consisting of daily dietary intake of macronutrients, calcium and sodium, serum 25(OH)D and parathyroid hormone (PTH) and other biochemical serum and urinary parameters...
July 2017: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28721153/fibroblast-growth-factor-23-iron-and-inflammation-are-they-related-in-early-stages-of-chronic-kidney-disease
#19
Ewelina Lukaszyk, Mateusz Lukaszyk, Ewa Koc-Zorawska, Anna Bodzenta-Lukaszyk, Jolanta Malyszko
INTRODUCTION: Fibroblast growth factor 23 (FGF-23) levels are elevated in impaired renal function. Inflammation and iron are potential regulators of FGF-23. The aim of the study was to evaluate the association between FGF-23 concentration, novel iron status biomarkers and inflammatory parameters among patients with early stages of chronic kidney disease (CKD). MATERIAL AND METHODS: The study population included 84 patients with CKD in the early stage. Serum hemoglobin, fibrinogen, creatinine, iron, transferrin saturation and ferritin levels were measured using standard laboratory methods...
June 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28694529/the-production-of-fibroblast-growth-factor-23-is-controlled-by-tgf-%C3%AE-2
#20
Martina Feger, Philipp Hase, Bingbing Zhang, Frank Hirche, Philipp Glosse, Florian Lang, Michael Föller
Transforming growth factor-β (TGF-β) is a cytokine produced by many cell types and implicated in cell growth, differentiation, apoptosis, and inflammation. It stimulates store-operated calcium entry (SOCE) through the calcium release-activated calcium (CRAC) channel Orai1/Stim1 in endometrial Ishikawa cells. Bone cells generate fibroblast growth factor (FGF) 23, which inhibits renal phosphate reabsorption and 1,25(OH)2D3 formation in concert with its co-receptor Klotho. Moreover, Klotho and FGF23 counteract aging and age-related clinical conditions...
July 10, 2017: Scientific Reports
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