Mehmet Ali Tas
Dicle University
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Mehmet Ali Tas.
BMC Infectious Diseases | 2008
Bunyamin Dikici; Hakan Uzun; Ebru Yilmaz-Keskin; Taşkın Taş; Ali Güneş; Halil Kocamaz; Capan Konca; Mehmet Ali Tas
BackgroundNeonatal tetanus (NT) is still considered as one of the major causes of neonatal death in many developing countries. The aim of the present study was to assess the characteristics of sixty-seven infants with the diagnosis of neonatal tetanus followed-up in the Pediatric Infectious Diseases Ward of Dicle University Hospital, Diyarbakir, between 1991 and 2006, and to draw attention to factors that may contribute (or may have contributed) to the elimination of the disease in Diyarbakir.MethodsThe data of sixty-seven infants whose epidemiological and clinical findings were compatible with neonatal tetanus were reviewed. Patients were stratified into two groups according to whether they survived or not to assess the effect of certain factors in the prognosis. Factors having a contribution to the higher rate of tetanus among newborn infants were discussed.ResultsA total of 55 cases of NT had been hospitalized between 1991 and 1996 whereas only 12 patients admitted in the last decade. All of the infants had been delivered at home by untrained traditional birth attendants (TBA), and none of the mothers had been immunized with tetanus toxoid during her pregnancy. Twenty-eight (41.8%) of the infants died during their follow-up. Lower birth weight, younger age at onset of symptoms and at the time admission, the presence of opisthotonus, risus sardonicus and were associated with a higher mortality rate.ConclusionAlthough the number of neonatal tetanus cases admitted to our clinic in recent years is lower than in the last decade efforts including appropriate health education of the masses, ensurement of access to antenatal sevices and increasing the rate of tetanus immunization among mothers still should be made in our region to achieve the goal of neonatal tetanus elimination.
Biological Trace Element Research | 1990
Orkide Donma; Sacit Günbey; Mehmet Ali Tas; M. Metin Donma
Zinc, copper, and magnesium concentrations in hair were measured in groups of children varying in one condition—protein-energy malnutrition, ricketts, thalassemia, malignancy, cardiac failure, or after prolonged infection and in healthy controls. As compared with controls, copper and magnesium concentrations were low in all groups, whereas higher values were obtained for hair zinc. These results showed that a generalized copper and magnesium deficiency were observed in the southeastern part of Turkey. However, zinc deficiency couldn’t be detected as far as the hair zinc values were concerned, although all of the subjects fell within the 50 percentile limits for their age-appropriate weights and heights.
Human Vaccines & Immunotherapeutics | 2014
Mehmet Ceyhan; Nezahat Gürler; Yasemin Ozsurekci; Melike Keser; Ahmet Emre Aycan; Venhar Gurbuz; Nuran Salman; Yildiz Camcioglu; Ener Cagri Dinleyici; Sengul Ozkan; Gulnar Sensoy; Nursen Belet; Emre Alhan; Mustafa Hacimustafaoglu; Solmaz Celebi; Hakan Uzun; Ahmet Faik Öner; Zafer Kurugöl; Mehmet Ali Tas; Denizmen Aygun; Eda Karadag Oncel; Melda Celik; Olcay Yasa; Fatih Akin; Yavuz Coşkun
Successful vaccination policies for protection from bacterial meningitis are dependent on determination of the etiology of bacterial meningitis. Cerebrospinal fluid (CSF) samples were obtained prospectively from children from 1 month to ≤ 18 years of age hospitalized with suspected meningitis, in order to determine the etiology of meningitis in Turkey. DNA evidence of Neisseria meningitidis (N. meningitidis), Streptococcus pneumoniae (S. pneumoniae), and Hemophilus influenzae type b (Hib) was detected using multiplex polymerase chain reaction (PCR). In total, 1452 CSF samples were evaluated and bacterial etiology was determined in 645 (44.4%) cases between 2005 and 2012; N. meningitidis was detected in 333 (51.6%), S. pneumoniae in 195 (30.2%), and Hib in 117 (18.1%) of the PCR positive samples. Of the 333 N. meningitidis positive samples 127 (38.1%) were identified as serogroup W-135, 87 (26.1%) serogroup B, 28 (8.4%) serogroup A and 3 (0.9%) serogroup Y; 88 (26.4%) were non-groupable. As vaccines against the most frequent bacterial isolates in this study are available and licensed, these results highlight the need for broad based protection against meningococcal disease in Turkey.
Neuropediatrics | 2015
Mustafa Taskesen; Hasan Celik; Ahmet Yaramis; Mehmet Ali Tas
OBJECTIVE Brain natriuretic peptide (BNP) is a potent natriuretic and vasodilator factor. BNP plasma concentrations were found to be elevated in patients with brain edema. The purpose of the present study is to evaluate the relationship between plasma NT-proBNP concentration and the presence of brain edema in patients with intracranial pathology. MATERIALS AND METHODS The plasma NT-proBNP levels of 50 patients and 25 healthy subjects were measured. The NT-proBNP levels of the patient group were measured during admission and after 7 days of treatment. RESULTS NT-proBNP plasma concentrations were found to be significantly higher in the patient group with brain edema than in the control group (p < 0.005). There were no significant differences in the NT-proBNP plasma concentrations between patients with intracranial pathology without brain edema and the control group (p > 0.005). NT-proBNP plasma concentrations were found to be significantly higher in patients with brain edema as compared with patients without brain edema before treatment (p < 0.005). CONCLUSION These results suggest that excessive secretion of plasma NT-proBNP is related to brain edema. Plasma NT-proBNP levels may serve as a marker to guide the early-diagnostic and therapeutic management in children with brain edema. Further studies are required to evaluate the role of BNP in brain edema pathophysiology.
Pediatrics International | 1990
Orkide Donma; Füsun Atlihan; Mehmet Ali Tas; M. Metin Donma
Serum levels of total cholesterol (TC), triglycerides (TG), high density lipoprotein cholesterol (HDL‐C), low density lipoprotein cholesterol (LDL‐C) and fructosamine (FA) were determined in thirty–three children with malignant diseases and twenty healthy controls aged 1–14 years. Of them, FA was the parameter measured in children with malignancy for the first time. Mean serum TC, HDL‐C, LDL‐C and FA showed statistically significant decreases in malignancy compared to healthy children, whereas a statistically significant increase was observed for TG concentrations in serum. From these data, we conclude that significant relations between serum lipids and lipoproteins and the state of malignancy exist in the children studied, and it should be remembered that serum FA concentrations are affected by abnormal serum protein turnover when one deals with any type of neoplastic disease.
Case Reports in Medicine | 2013
Çapan Konca; Bahar Caliskan; Mehmet Ali Tas
Background. Extrarenal pathologies may be associated with renal position and fusion anomalies. According to the literature, our patient is the first horseshoe kidney case that had mega cisterna magna, arachnodactyly, and mild mental retardation. Case Report. A 9-year-old boy admitted because of the myoclonic jerks. He had a dysmorphic face, low-set and cup-shaped ears, arachnodactyly, and mild mental retardation. The patients laboratory findings were normal except for a mild leucocytosis and hypochromic microcytic anemia. His cerebrospinal fluid was cytologically and biochemically normal. Cranial MRI revealed 1.5 cm diametered mega cisterna magna in the retrocerebellar region. Although there were no significant epileptical discharges in the electroencephalography, there were slow wave discharges arising from the anterior regions of both hemispheres. Because he had stomachache, abdominal ultrasonography was performed, and horseshoe kidney was determined. Abdominal CT did not reveal any abnormalities except the horseshoe kidney. There were not any cardiac pathologies in echocardiography. He had normal 46XY karyotype and there were no repeated chromosomal derangements, but we could not evaluate for molecular and submicroscopic somatic changes. He was treated with valproic acid and myoclonic jerks did not repeat. Conclusion. We suggest that the presence of these novel findings may represent a newly recognized, separate syndrome.
European Journal of Pediatrics | 2012
Ener Cagri Dinleyici; Zafer Kurugöl; Ozden Turel; Nevin Hatipoglu; İlker Devrim; Hasan Agin; Ilker Gunay; Olcay Yasa; Muferet Erguven; Nuri Bayram; Ali Kizildemir; Emre Alhan; Emine Kocabas; Hasan Tezer; Hayrettin Hakan Aykan; Nazan Dalgic; Betul Kilic; Gulnar Sensoy; Nursen Belet; Nihan Uygur Kulcu; Aysu Say; Mehmet Ali Tas; Ergin Çiftçi; Erdal Ince; Halil Özdemir; Melike Emiroglu; Dursun Odabas; Zeynel Abidin Yargic; Cagatay Nuhoglu; Kürşat Bora Çarman
Turkish Journal of Pediatrics | 2011
Mustafa Taşkesen; Sedat Akdeniz; Taşkın Taş; Ugur Keklikci; Mehmet Ali Tas
Italian Journal of Pediatrics | 2015
Ali Güneş; Ünal Uluca; Fesih Aktar; Çapan Konca; Velat Şen; Aydın Ece; Salih Hosoglu; Mehmet Ali Tas; Fuat Gürkan
Vaccine | 2015
Ener Cagri Dinleyici; Zafer Kurugöl; Ates Kara; Hasan Tezer; Mehmet Ali Tas; Ekrem Guler; Olcay Yasa; İlker Devrim; Ergin Çiftçi; Halil Özdemir; Ayper Somer; Metehan Ozen; Gulnar Sensoy; Nazan Dalgic; Emre Alhan