Mustafa Koyun

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The metal accumulation levels for muscle, skin, gill, liver and intestine tissues of some Cyprinidae species (Carassius carassius, Condrostoma nasus, Leuciscus cephalus and Alburnus alburnus) in Enne Dame Lake (Kütahya/Turkey), which is mostly fed by hot spring waters, were investigated. Analyses were performed for copper (Cu), zinc (Zn), manganese (Mn),(More)
The methodologies to diagnose hypercalciuria have not yet been standardized. The aims of this study were to assess the correlation between urinary calcium/creatinine ratio (UCa/Cr) ≥ 0.21 (mg/mg) and 24 h urinary calcium excretions and to determine the reference values of the UCa/Cr ratio among a large population of schoolchildren in southern Turkey.(More)
AIM This prospective study aimed to investigate the diagnostic value of serum procalcitonin levels in children with acute pyelonephritis documented by Tc-dimercaptosuccinic acid (DMSA) scintigraphy. METHODS We compared the symptoms and laboratory findings of fever, vomiting, abdominal/flank pain, leukocyte count, serum C-reactive protein and procalcitonin(More)
Familial Mediterranean fever (FMF) has been reported more frequently in patients presenting with Henoch–Schönlein purpura (HSP) than in the general population. But, there is no clear knowledge about MEFV mutations in patients with HSP. We investigated the prevalence of MEFV mutations in children with HSP and without FMF whether these mutations have any(More)
BACKGROUND We investigated magnesium excretion and rate of hypomagnesemia in pediatric renal transplant recipients. METHOD The medical records of 114 pediatric renal transplant recipients were retrospectively evaluated. After exclusion of 23 patients, 91 patients were included in the study. We recorded serum magnesium levels at the time of measurement of(More)
Mutations of the Mediterranean fever (MEFV) gene, which encodes pyrin protein, leads to familial Mediterranean fever (FMF) and a connection between MEFV mutations and rheumatic diseases has been suggested. The aim of this study was to explore the frequency and clinical significance of MEFV mutations in children with juvenile idiopathic arthritis (JIA). In(More)
Data on urolithiasis (UL) in infancy are limited. The objective of this study was to increase awareness of infant UL and to investigate the influence of possible risk factors in this very specific age group. Nonfasting, second-voiding urine samples were obtained to test for urinary excretions of calcium, oxalate, citrate, magnesium, uric acid, and(More)
Three adolescents with severe hypertension due to mercury intoxication are presented. Two of them had skin rash, signs and symptoms of central nervous system involvement, peripheral neuropathy and mild-to-moderate proteinuria in addition to hypertension. All three patients had a history of exposure to mercury, the source being broken barometers taken from(More)
BACKGROUND Cardiovascular (CV) disease remains the most common cause of mortality in chronic kidney disease (CKD). METHODS In this cross-sectional study, 43 pediatric patients with CKD were divided into two groups according to their estimated glomerular filtration rate (eGFR): groups 1 and 2 (eGR; 29-75 and 15-29 mL/min/1.73 m(2), respectively). M - mode,(More)
Hypokalemic periodic paralysis can occur secondarily to excessive potassium loss. Thyrotoxicosis, diuretic ingestions, hyperaldosteronism, barium poisoning, Gitelman syndrome, and Bartter syndrome are among the disorders causing secondary hypokalemic periodic paralysis. Clinical presentation of Bartter syndrome with hypokalemic periodic paralysis is rare. A(More)