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Featured researches published by Cem Hasan Razi.


Pediatric Allergy and Immunology | 2011

Training of trainers on epinephrine autoinjector use.

Mustafa Arga; Arzu Bakirtas; Ferhat Catal; Okşan Derinöz; Koray Harmanci; Cem Hasan Razi; Salih Ergöcen; M. Sadık Demirsoy; Ipek Turktas

To cite this article: Arga M, Bakirtas A, Catal F, Derinoz O, Harmanci K, Razi CH, Ergöcen S, Demirsoy MS, Turktas I. Training of trainers on epinephrine autoinjector use. Pediatric Allergy Immunology 2011; 22: 590–593.


Annals of Allergy Asthma & Immunology | 2006

Effect of montelukast on symptoms and exhaled nitric oxide levels in 7- to 14-year-old children with seasonal allergic rhinitis.

Cem Hasan Razi; Arzu Bakirtas; Koray Harmanci; Ipek Turktas; Deniz Erbas

BACKGROUND Cysteinyl leukotrienes have been found to exert potent inflammatory effects in the upper airways and play a fundamental role in the pathogenesis of allergic rhinitis. Previous studies have reported increased levels of exhaled nitric oxide (eNO) in patients with allergic rhinitis without asthma symptoms. OBJECTIVE To investigate the role of treatment with montelukast on symptoms, eNO levels, and peripheral eosinophil counts of children with seasonal allergic rhinitis during pollen season. METHODS A randomized, double-blind, parallel-group study performed between April and June 2005 in 57 children aged 7 to 14 years with seasonal allergic rhinitis was performed. The study comprised a 1-week screening period, a 1-week run-in period, and a 2-week treatment period with once daily montelukast, 5 mg, or matching placebo. RESULTS No significant difference at baseline was found in symptom scores, eNO levels, and blood eosinophil counts between the treatment and placebo groups. After 2 weeks of montelukast treatment, improvements from the baseline in the daytime nasal, composite, and daytime eye symptoms scores were significantly greater in the montelukast group compared with the placebo group (P < .001, P < .001, and P < .01, respectively). A significant decrease was also found in eosinophil counts (P < .001) in the montelukast group compared with the placebo group after treatment. Montelukast treatment did not produce a significant effect on eNO levels compared with placebo (P = .96). CONCLUSION Montelukast treatment provided significant improvement in symptoms and peripheral eosinophil counts of school-age children with seasonal allergic rhinitis; however, it did not show a significant effect on eNO levels.


Pediatric Pulmonology | 2012

Hair zinc and selenium levels in children with recurrent wheezing

Cem Hasan Razi; Ahmet Zulfikar Akelma; Okhan Akin; Mesut Koçak; Osman Özdemir; Aydin Celik; Fatih Mehmet Kislal

The prevalence of asthma and other allergic diseases has increased markedly in the last few decades. Oxidative stress plays a central role in asthma pathogenesis, and reduced daily consumption of antioxidants is positively correlated with increased risk of asthma. Zinc (Zn) and selenium (Se) are the main antioxidant elements. In our study, we aimed to investigate hair Zn and Se levels in children with recurrent wheezing. The study included 65 patients with recurrent wheezing (RW) and 65 healthy children (HC). The hair Zn and Se levels (µg/g) of the RW group were lower in comparison with the HC group (162.43 ± 91.52 vs. 236.38 ± 126.44, P < 0.001, and 217.37 ± 83.01 vs. 280.53 ± 122.73, P < 0.001, respectively). Total antioxidant capacity (TAC) (mmol/L) of the RW group was found to be significantly lower in comparison with the HC group (1.38 ± 0.14 vs. 1.53 ± 0.20, respectively; P < 0.001). Number of wheezing episodes in the last 6 months were negatively correlated with serum TAC, hair Zn, and Se levels in RW group (rp = −0.291, P = 0.001; rp = −0.209, P = 0.017; rp = −0.206, P = 0.019, respectively). The number of acute respiratory tract infection (ARTI) episodes in the last 6 months was negatively correlated with serum TAC and hair Zn levels (rp = −0.316, P < 0.001, and rp = −0.196, P = 0.025, respectively). In this study, we found that TAC, hair Zn, and hair Se levels were lower in children with RW than HC and negatively correlated with wheezing episodes in the last 6 months. Also body Zn and Se levels can be reliably measured in hair samples. Pediatr Pulmonol. 2012; 47:1185–1191.


Journal of Clinical Research in Pediatric Endocrinology | 2010

Neonatal Diabetes Mellitus Accompanied by Diabetic Ketoacidosis and Mimicking Neonatal Sepsis: A Case Report

Ayhan Abaci; Cem Hasan Razi; Osman Özdemir; Samil Hizli; Fatih Mehmet Kislal; Pınar Işık Argas; Nimet Kabakus

Neonatal diabetes mellitus (DM) develops within the first six weeks of life with basic findings including dehydration, hyperglycaemia, and mild or no ketonemia/ketonuria. It can be either transient or permanent. Here, we report a case of a one-month-old infant with permanent neonatal diabetes, due to pancreatic hypoplasia, accompanied by diabetic ketoacidosis (DKA). The hyperglycaemia and ketoacidosis resolved by the 14(th) hour of treatment, consisting of IV insulin and rehydration. Subsequently, insulin treatment was continued with neutral protamine hagedorn (NPH) insulin. Breastfeeding was started and was continued at intervals of three hours. Following initiation of breastfeeding, the stools became watery, loose, yellow-green in color, and frequent (8-10 times a day). They contained no blood or mucus. Replacement of pancreatic enzymes resulted in decreased stool frequency. Neonatal DM due to pancreatic hypoplasia and associated with DKA may mimic sepsis and should be kept in mind in all newborns who present with fever, dehydration, and weight loss.


Journal of Pediatric Endocrinology and Metabolism | 2012

The association of serum lipocalin-2 levels with metabolic and clinical parameters in obese children: a pilot study

Ahmet Zulfikar Akelma; Ayhan Abaci; Osman Özdemir; Aydin Celik; Zekai Avci; Cem Hasan Razi; Samil Hizli; Okhan Akin

Abstract Objective: We aimed to evaluate the association between serum lipocalin-2 level and clinical and metabolic parameters in obese children. Methods: The study included obese children with a body mass index (BMI) >95th percentile who presented to Kecioren Teaching and Research Hospital with the complaint of weight gain and healthy children with a BMI <85th percentile. The height and weight of the patients were measured for compartment of anthropometric data. Fasting blood glucose, insulin, lipid profile, and serum lipocalin-2 level were measured to evaluate the laboratory parameters. Results: The study included 33 obese and 34 healthy non-obese children. Comparison of data on the obese subjects with those of the healthy subjects shows differences in BMI, BMI-SDS, triglyceride, insulin, and homeostasis model assessment index-insulin resistance levels between the two groups were statistically significant (p<0.05), whereas serum lipocalin-2 was not statistically significant (p>0.05). There was no statistically significant difference in serum lipocalin-2 levels when obese and control groups were reclassified as prepubertal and pubertal (p>0.05). Conclusions: In this study, we did not find any relationships among serum lipocalin-2 level, anthropometric parameters, or metabolic parameters. According to the results of this study, we do not suggest routine investigation of serum lipocalin-2 level in obese subjects for risk stratification of the obesity-related complications.


Annals of Allergy Asthma & Immunology | 2008

Comparison of single 2,000-μg dose treatment vs sequential repeated-dose 500-μg treatments with nebulized budesonide in acute asthma exacerbations

Cem Hasan Razi; Ipek Turktas; Arzu Bakirtas

Background High repeated doses of inhaled corticosteroids (ICSs) are recognized as having a more rapid improvement of outcomes than a single dose of ICS in severe acute asthma. However, to our knowledge, there has been no direct comparison of the early effects of single or repeated administration of the same total dosage of ICS in children with moderate to severe exacerbations of asthma. Objective To compare the efficacy of a single dose of 2,000 μg of nebulized budesonide with 4 repeated doses of 500 μg of nebulized budesonide in 40 children with an acute asthma exacerbation. Methods Randomized, double-blind, parallel study that compared the efficacy of 2,000 μg of nebulized budesonide, administered in a single dose, with repeated doses (4 doses of 500 μg each) during the first 90 minutes in 40 children (mean [SD] age, 10.7 [2.4] years) with an acute asthma exacerbation that required treatment with an oral corticosteroid. Forced expiratory volume in 1 second, asthma attack score, and oxygen saturation were evaluated at 20, 40, 60, 90, 120, 180, and 240 minutes after initial treatment. Oral corticosteroids were given to all patients at 90 minutes. Results There were no significant differences in forced expiratory volume in 1 second ( P = .54) at any times between the groups. Also, asthma scores and oxygen saturation were not different in either group within 90 minutes ( P = .51 and P = .64, respectively) and thereafter ( P = .35 and P = .87, respectively). Conclusion The use of a single dose of nebulized budesonide is as effective as repeated administration of the same total dosage during the first 90 minutes before giving oral corticosteroids in children with moderate to severe exacerbations of asthma.


American Journal of Emergency Medicine | 2013

Neuron-specific enolase and S100B protein in children with carbon monoxide poisoning: children are not just small adults.

Ahmet Zulfikar Akelma; Aydin Celik; Osman Ozdemir; Fatma Kavak Akelma; Ayhan Abaci; Cem Hasan Razi; Fatih Mehmet Kislal; Okhan Akin

INTRODUCTION The aim of this study was to evaluate the role of S100B protein and neuron-specific enolase (NSE) in children with carbon monoxide (CO) poisoning. METHODS In this prospective, case-controlled study, children with CO poisoning were recruited. Patient demographics features and Glasgow Coma Scale (GCS) were recorded. Blood samples were collected from all children with CO poisoning at their admission to the hospital and at 3 and 6 hours after admission. Levels of NSE and S100B were measured. The control group consisted of age-matched healthy children. RESULTS A total of 30 children with CO poisoning (mean age, 7.88 ± 3.75 years; 17 boys) and 30 healthy children (mean age, 8.16 ± 3.05 years; 7 boys) were enrolled in the study. Mean carboxyhemoglobin level (%) measured at admission was 30.05 ± 8.00. Serum NSE levels of the children with CO poisoning were significantly higher than those of children from the control group at 0 hour and also at 3 and 6 hours (P < .001, P = .001, and P = .005, respectively). Serum S100B protein levels were similar between the 2 groups at 0 and 3 and 6 hours (P > .05). Serum NSE levels of patients with CO poisoning demonstrated a negative correlation with the admission GCS scores. No correlation was found between GCS scores and S100B protein levels. CONCLUSION We have shown that NSE levels increase in CO-associated hypoxic brain damage in accordance with clinical findings. We have also found that, contrary to the studies conducted on adults, S100B protein levels do not increase in response to hypoxic brain damage.


Allergologia Et Immunopathologia | 2012

Relationship between hair cadmium levels, indoor ETS exposure and wheezing frequency in children

Cem Hasan Razi; Kadir Okhan Akin; Koray Harmanci; Osman Özdemir; Ayhan Abaci; Şamil Hızlı; Rahime Renda; Celik A

BACKGROUND Cadmium (Cd) is a toxic heavy metal and the components of tobacco and scalp hair effectively reflect a long-term environmental exposure. OBJECTIVE The aim of this study was to assess the concentration of Cd levels in the hair of children with recurrent wheezing, and to evaluate the predictors of elevated Cd levels with a focus on anthropometric, environmental, and dietary factors. METHODS In this case-control study, scalp hair was obtained from 65 children with recurrent wheezing (RW) and from 65 healthy children (HC). Hair Cd concentrations were determined by ICP-MS. RESULTS Median (IQR) hair Cd levels were 0.22 μg/kg (0.10-0.35) in RW group and 0.12 μg/kg (0.04-0.23) in HC group (p = 0.013). Multivariable logistic regression model results showed that being a child with RW (OR = 6.28; p = 0.001), ETS exposure at home (OR=22.56; p < 0.001), and mothers education level (OR = 0.49; p = 0.020), are the major predictor variables for elevated hair Cd levels (cut off >0.17 μg/kg). In RW group, multivariable logistic regression results showed that hair Cd levels of >0.17 μg/kg was significantly predictive of having three or more wheezing episodes in RW group after adjustment for ETS exposure at home (OR = 5.48; p = 0.012). CONCLUSION We demonstrated that the more children are exposed to ETS at home, the more they are exposed to heavy metals like Cd. Especially children who have had three or more wheezing attacks over the last six months are much more susceptible than the other asthmatic and non-asthmatic children, and Cd exposure aggravates their asthmatic status.


International Archives of Allergy and Immunology | 2011

Knowledge and Attitudes of Adolescents towards Asthma: Questionnaire Results before and after a School-Based Education Program

Cem Hasan Razi; Arzu Bakirtas; Sadık Demirsoy

Background: Previous studies on school-based education programs have reported that asthmatic and nonasthmatic adolescents, teachers and school personnel do not have enough information on asthma. However, the number of education programs including adolescents without asthma is not sufficient. The aim of the present study was to determine the knowledge of school children about asthma and to investigate whether their knowledge of asthma can be increased by an education program through a booklet distributed as a handout. Methods: This cross-sectional prospective questionnaire survey was carried out in a private school in Ankara, Turkey, between February and April 2006. 720 adolescents in grades 6, 7 and 8 were included. Knowledge about asthma was evaluated by a scoring system before and after the education offered by means of a booklet. Results: The final analysis was conducted on 642 students in total. The number of right answers in 5 categories, percentage of right answers and total questionnaire score improved significantly after the education received (p < 0.001). The total questionnaire scores of the girls (p = 0.002), those students with a university graduate mother (p = 0.006) and those with a physician parent (p = 0.041) were higher than those of the other pupils. Conclusion: Theoretical material in the form of a booklet can be used in a school-based asthma education program in order to improve the knowledge of adolescents about asthma.


The Anatolian journal of cardiology | 2011

Factors associated with left atrial size in obese children: an observational study.

Osman Özdemir; Ayhan Abaci; Şamil Hızlı; Ahmet Zulfikar Akelma; Cem Hasan Razi; Tülin Köksal; Sinef Aksoy; Kadir Ağladıoğlu

OBJECTIVE Left atrial size can be considered an independent risk factor for cardiovascular diseases. The measurements of left atrium may be used to assess obesity, which is an important risk factor of cardiovascular diseases. It is aimed to determine the factors that effect to the left atrial size, which is an indicator of cardiac risk in obese children without hypertension. METHODS The cross-sectional observational study was performed between April 2008 and September 2009 at the clinic of Pediatric Cardiology. Eighty obese and 82 lean children were studied. Diagnosis of obesity was defined according to the World Health Organization classification as the standard deviation score of body mass index being over + 2 standard deviation of the same gender and age. All subjects underwent two-dimensional, M-mode, and Doppler echocardiographic studies. Students t-test, Chi-square test, Pearson correlation analysis, and multiple stepwise regression analyses were used to compare the subjects, differences in group proportions, evaluate the relation of variables with the left atrial size, and examine the effects of significant independent variables, respectively. RESULTS The mean age of obese patients was 11.7±2.2 years and it of lean subjects was 11.7±2.2 years. Body weight, body mass index, standard deviation score of body mass index, waist circumference, systolic and diastolic blood pressure, fasting insulin, and insulin resistance statistically increased in obese children (p<0.05). The left atrial size statistically correlated (p<0.05) with age (r=0.523), body mass index (r=0.394), waist circumference (r=0.421), diastolic blood pressure (r=0.230), insulin resistance (r=0.350), and left ventricular mass (r=0.535). It was determined that age (beta=0.491; 95% CI=0.091-0.892; p=0.001) and left ventricular mass (beta=0.055; 95% CI=0.026-0.085; p=0.017) were the most effective independent factors associated with left atrial size among other independent factors in multiple regression analysis. CONCLUSION We found that left atrial size was mostly influenced by age and left ventricular mass in obese children. Therefore, it is important that left atrial size is follow up in childhood obesity.

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Ayhan Abaci

Dokuz Eylül University

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