Murat Soker

Dicle University, Amida, Diyarbakır, Turkey

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Publications (14)24.29 Total impact

  • Murat Soker · Mehmet Kervancioglu
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    ABSTRACT: Anthracyclines are well established as highly efficacious antineoplastic agents for childhood malignancy, but they frequently cause dose-related cardiotoxicity. For this reason, children who have received anthracyclines need periodical cardiac evaluation. The plasma levels of B-type natriuretic peptide (BNP) have been shown to increase in proportion to severity of cardiac dysfunction. N-terminal BNP (NT-pro-BNP) is secreted from the cardiac ventricles in response to volume expansion and pressure overload. The aim of our study was to investigate whether plasma levels of NT-pro-BNP and cardiac troponin I (cTnI) can be used as specific markers for doxorubicin-induced cardiotoxicity in children with malignancy. We performed the study in Dicle University Hospital, Pediatric Hematology and Oncology clinic. Were measured plasma NT-pro-BNP and cTnI in 31 patients (14 boys and 17 girls) who received doxorubicin-containing chemotherapy for their malignancy at cumulative doses of 30-600 mg/m2, between October 2000 and December 2004. Cardiac evaluation of the patients included recording of electrocardiography and assessment of systolic and diastolic functions of the heart by echocardiography. Of the 31 patients, 4 (12.9%) had left ventricular dysfunction as assessed by echocardiography. Plasma NT-pro-BNP levels in these patients were significantly elevated in comparison with healthy controls (p<0.001). Plasma NT-pro-BNP levels were significantly elevated in patients with cardiac dysfunction when compared with normal cardiac function (p<0.008). The cTnI levels were found under normal value in all patients. Measurement of NT-pro-BNP level may be an easy and practical tool, and during treatment may allow earlier-identification of individuals at risk for monitoring cardiac damage. Plasma NT-pro-BNP concentration may be a useful and sensitive indicator of cardiac dysfunction in children receiving doxorubicin therapy.
    No preview · Article · Aug 2005 · Saudi medical journal
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    ABSTRACT: To determine the prevalence of factor V Leiden (FVL) and prothrombin gene (PG) 20210A mutations in patients who attended the outpatient clinic and do not have a family history of thrombosis. We researched FVL and PG20210A mutations in 151 outpatients (92 males and 59 females) who attended the Pediatrics Polyclinic, Medical Faculty, Dicle University, Turkey between May 2002 and July 2002. Peripheral venous bloods (2 cc) with ethylenediaminetetraacetic acid were used to isolate DNA by high pure polymerase chain reaction (PCR). Later, by using light-cycler FVL (Roche) and prothrombin mutation detection kit (Roche) and light-cycler equipment, FVL and PG20210A gene mutations were determined from the samples in the glass capillary tubes by PCR specific adaptation. For active protein C (APC) resistance, STA-STACLOT APC-R Detection Kit was used. Expected values were evaluated with STA equipment and using STA-STACLOT APC-R procedure. The prevalence of heterozygote mutations of FVL was 4.6% and PG20210A was 0.7%. The FVL mutation frequency obtained in our study is lower than the other studies in Turkey, but in correlation with the results of the other Caucasian populations throughout the world. Active protein C resistance in patients carrying heterozygote mutation of FVL has been found in low rates. Factor V Leiden and PG20210A were confronted in high prevalences in patients who suffer venous thrombosis (VT) CONCLUSION: Scanning of FVL and PG20210A gene mutations may be recommended in high risk groups such as relatives of FVL and PG20210A carriers and relatives of patients with VT, and in during pregnancy, the use of oral contraceptives and before surgery. Routine scanning of FVL and PG20210A gene mutations is not recommended in people who do not have risk factors for VT.
    Full-text · Article · May 2005 · Saudi medical journal
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    ABSTRACT: Aase-Smith syndrome type II is rare in childhood and there are few reported cases. Here, we report an 8-month-old boy with congenital red cell aplasia and triphalangeal thumbs. In addition to thumb anomalies, he presented with growth failure, hypertelorism and novel osseous radiologic abnormalities, large fontanelles and micrognathia as extraordinary. Some clinical symptoms had complete clinical remission with deflazacort treatment.
    No preview · Article · Jan 2005 · Saudi medical journal
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    ABSTRACT: Venous thrombosis (VT) is a common disease, with an annual incidence in the general population of approximately 1 per 1000. The prevalence of genetic risk factors for thrombosis varies greatly in different parts of the world. Prothrombin G20210A (PT G20210A) gene mutation has been recently identified as a common risk factor in venous thrombosis. Sixty-one patients with VT, differing in age and sex, and 340 healthy subjects were consecutively enrolled into our study to determine the prevalence of PT G20210A in VT and in the healthy population of the southeast of Turkey. The mutation was identified with fluorescence resonance energy transfer (FRET) with the LightCycler polymerase chain reaction. The PT G20210A mutation was found to be 6.5% (4/61) in the VT group and 1.2% (4/340) in the healthy group ( P = 0.021). Three patients with VT had a heterozygous PT G20210A mutation, and the other patient with VT had both Factor V Leiden and PT G20210A mutations. We showed that this method may be used safely for detection of the PT G20210A gene mutation, and the prevalence of PT G20210A mutation is significantly higher in patients with VT than in the healthy population in the southeast of Turkey.
    No preview · Article · Aug 2004 · Heart and Vessels
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    ABSTRACT: Extramedullary hematopoiesis is a common finding in idiopathic myelofibrosis and is generally found in the liver, spleen and lymph nodes, but meningeal extramedullary hematopoiesis is very rare. Some diseases may be causes of intracranial masses and diagnosis is difficult. We present a case diagnosed as intracranial and meningeal extramedullary hematopoiesis with idiopathic myelofibrosis inducing serious headache.
    No preview · Article · Jul 2004 · Neurosciences

  • No preview · Article · Jul 2004 · Saudi medical journal
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    ABSTRACT: The purpose of this study is to examine clinical progress and hemodynamic and electrocardiologic features (QT depression and heart rate variability [HRV]) of patients exposed to a scorpion bite. Seventeen patients bitten by scorpions, and, as a control group, 15 healthy subjects were included in the study. Standard electrocardiograph (ECG) records, 24-hour Holter-ECG, and Doppler echocardiographic examinations were performed. Holter ECG indicated sinus tachycardia, sinus bradycardia, paroxysmal supraventricular tachycardia, atrial fibrillation, first-degree and second-degree atrioventricular block not requiring treatment, early atrial beats, and early ventricular beats in the patients at frequencies of 82%, 12%, 35%, 12%, 8%, 70%, and 47%, respectively. HRV parameters that reflected parasympathetic activity (SD 35+/-13-43+/-16, RMS-SD: 20+/-9-30+/-12, high frequency: 7.8+/-2-4.3+/-3, p<0.05) were significantly lower (p<0.05). Low frequency, which especially showed sympathetic activity (LF: 11+/-13-11+/-23, p>0.05), was similar in both groups. In addition, the LF/HF ratio, which reflected sympathovagal balance, was significantly increased in the patient group (1.5+/-1-3.0+/-2, p=0.005). Corrected QT and QT dispersion values were not significantly different with respect to the control (p>0.05). In the patient group compared to the control, a significant decrease was determined in the proportion of mitral E velocity to mitral A velocity (mEv/mAv), diastolic filling period (DFP), and left ventricular ejection fraction (LVEF), while a significant increase was noticed in pulmonary artery pressure (PAP) (mEv/mAv: 0.9+/-0.4-1.7+/-0.6, DFP: 362+/-8.5-425+/-89, LVEF: 53.1+/-6.7-68.6+/-5.8, PAP: 38.1+/-13-27.2+/-6, p<0.05). Scorpion bite leads to serious cardiovascular disorders, associated with decreased HRV, decreased systolic and diastolic functions, increased arrhythmic events, and hemodynamic disturbance with sympathetic and parasympathetic balance disturbance.
    No preview · Article · Jan 2004 · Angiology

  • No preview · Article · Dec 2003 · Annals of Hematology
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    ABSTRACT: Primary gastric adenocarcinoma is extremely rare in children. Here, we report an additional case of primary adenocarcinoma, located at the lesser curvature in a girl at the age of 2.5 years. She had no family history and no apparent underlying cause for the tumor. She died 4 months after admission despite complete resection of the mass and chemotherapy.
    Preview · Article · Feb 2002 · Gastric Cancer
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    ABSTRACT: We present a case of severe microangiopathic hemolytic anemia and thrombocytopenia with epistaxis, gross hematuria, hemoglobinuria, and skin purpura in a child with Brucella septicemia proven by culture. The patient showed the features of this illness: leukopenia, severe hemolytic anemia, thrombocytopenia, fragmentation of erythrocytes in the peripheral blood smear, increased erythropoiesis, megakaryopoiesis, and granulomata cell invasion in the bone marrow. The patient was treated with rifampin and doxycycline. Platelets and leukocyte numbers rose to normal values by the 6th day. She was discharged on the 14th day. Follow-up of the patient 1 year later showed normal bone marrow morphology. Differential diagnosis, pathogenesis, and therapy of Brucella infection are discussed.
    No preview · Article · Oct 2001 · Annals of Hematology
  • M Soker · S Akdeniz · C Devecioglu · K Haspolat

    No preview · Article · Oct 2001 · Journal of the European Academy of Dermatology and Venereology
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    ABSTRACT: Serum levels of interleukin-1 beta (IL-1beta), soluble interleukin 2 receptors (sIL-2R), interleukin-6 (IL-6), interleukin-8 (IL-8), and tumor necrosis factor-alpha (TNF-alpha) were measured to predict some characteristics of febrile episodes in children with cancer and neutropenia. Forty-eight episodes of febrile neutropenia were determined in 23 pediatric cancer patients, including 35 febrile episodes without identifiable source, 7 episodes of bacteremia due to Gram-negative organisms and 4 due to Gram-positive organisms, and 2 fungal infections. Interleukin-6, sIL-2R, and IL-8 levels were significantly higher at the beginning of the febrile episodes than those of controls (p < 0.001, p < 0.001, and p < 0.001). Interleukin-6, slL-2R, and IL-8 levels were higher in patients with bacteremia due to Gram-negative organisms than in those with Gram-positive ones (p = 0.042, p = 0.006, and p = 0.023, respectively). TNF-alpha and IL-1beta levels were similar in febrile episodes and controls (p > 0.05). In conclusion, sIL-2R, IL-6, and IL-8 levels may be helpful in the prediction of infection in febrile cancer patients with neutropenia and measurements of IL-1beta and TNF-alpha were not useful for identifying the presence and the type of infection in febrile neutropenic episodes in children.
    No preview · Article · Mar 2001 · Medical Oncology
  • A Yaramis · M Soker · M Bilici
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    ABSTRACT: Amitraz is an acaricide and insecticide indicated for the treatment of generalized demodicosis in dogs and for the control of ticks and mites in cattle and sheep. There is little information available in the human literature about the toxicology of the product. In this study, the clinical and laboratory features of amitraz poisoning in 11 children are presented. The age range of the patients was 2-1/2 to 6 years. Accidental ingestion of an improperly stored liquid pesticide was determined in all patients. Unconsciousness (100%), drowsiness (100%), and myosis (84%) were the most common abnormal signs; 45%, 27%, and 18% of patients had bradycardia, respiratory insufficiency, and hypotension, respectively. All of the patients were treated with atropine, gastric lavage, activated charcoal, and supportive care. Although the patients had a prompt response to therapy, three patients required multiple doses of atropine during a 24-h period. This study revealed that clinical poisoning by oral route emerged within 30-90 min and that central nervous system (CNS) depression, which is the most important sign, resolved within 8-1/2-14 h. All cases were discharged.
    No preview · Article · Sep 2000 · Human & Experimental Toxicology
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