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    Effect of cutaneous leishmaniasis treatment on serum adenosine/ deoxyadenosine deaminase activities
    (Chemical Publishing Co., 2012) Çulha, Gülnaz; Berköz, Mehmet; Yalin, Serap; Gülkan, Burcu
    Adenosine deaminase is an enzyme present in a great number of plants and animals, found from simple intervebrates to human beings. Adenosine deaminase and deoxyadenosine deaminase activities increase substantially during mitogenic and antigenic responses of lymphocytes and conversely lymphocytes blastogenesis. Various diseases characterized by the alteration of cell-mediated immunity can be effected by the serum activity of adenosine deaminase. Cutaneous leishmania is an intracellular parasite that targets and multiplies within phagocytic cells of the innate immune system such as the macrophage, dendritic cell and neutrophil. In this study, we investigated the role of treatment on adenosine deaminase and deoxyadenosine deaminase activities in the cutaneous leishmaniasis patients. For this aim, 25 treated cutaneous leishmaniasis patients, 19 untreated patients and 25 healthy control subjects were enrolled in this study. The clinical diagnosis was parasitologically confirmed Giemsa stain and by culture NNN medium. Adenosine deaminase and deoxyadenosine deaminase activities were measured spectrophotometrically by the method of Giusti. Serum adenosine deaminase and deoxyadenosine deaminase activities were higher in cutaneous leishmaniasis patients than the controls and also, adenosine deaminase and deoxyadenosine deaminase activities decreased in treated patients as compare with non-treated cutaneous leishmaniasis patients. According to these results, it is suggested that evaluation of adenosine deaminase activity in serum of patients with cutaneous leishmaniasis could be considered a useful monitoring tool for their infection status. Therefore, adenosine deaminase can be a predictive and sensitive parameter of leishmaniasis treatment.
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    Öğe
    Effect of Cutaneous Leishmaniasis Treatment on Serum Adenosine/Deoxyadenosine Deaminase Activities
    (Asian Journal Of Chemistry, 2012) Culha, Gulnaz; Berkoz, Mehmet; Yalin, Serap; Gulkan, Burcu
    Adenosine deaminase is an enzyme present in a great number of plants and animals, found from simple intervebrates to human beings. Adenosine deaminase and deoxyadenosine deaminase activities increase substantially during mitogenic and antigenic responses of lymphocytes and conversely lymphocytes blastogenesis. Various diseases characterized by the alteration of cell-mediated immunity can be effected by the serum activity of adenosine deaminase. Cutaneous leishmania is an intracellular parasite that targets and multiplies within phagocytic cells of the innate immune system such as the macrophage, dendritic cell and neutrophil. In this study, we investigated the role of treatment on adenosine deaminase and deoxyadenosine deaminase activities in the cutaneous leishmaniasis patients. For this aim, 25 treated cutaneous leishmaniasis patients, 19 untreated patients and 25 healthy control subjects were enrolled in this study. The clinical diagnosis was parasitologically confirmed Giemsa stain and by culture NNN medium. Adenosine deaminase and deoxyadenosine deaminase activities were measured spectrophotometrically by the method of Giusti. Serum adenosine deaminase and deoxyadenosine deaminase activities were higher in cutaneous leishmaniasis patients than the controls and also, adenosine deaminase and deoxyadenosine deaminase activities decreased in treated patients as compare with non-treated cutaneous leishmaniasis patients. According to these results, it is suggested that evaluation of adenosine deaminase activity in serum of patients with cutaneous leishmaniasis could be considered a useful monitoring tool for their infection status. Therefore, adenosine deaminase can be a predictive and sensitive parameter of leishmaniasis treatment.
  • Küçük Resim
    Öğe
    Enzyme activity and genetic polymorphisms in patients with type II diabetes mellitus
    (Wroclaw Medical Univ, 2020) Arpaci, Abdullah; Yalin, Serap; Ecevit, Hasret; Comelekoglu, Ulku; Mete, Turkan
    Background. Diabetes mellitus (DM) has become more and more common and has a high morbidity and mortality rate worldwide. It is a multifactorial chronic disease affected by both genetic and environmental factors. Objectives. To evaluate the association between antioxidant enzyme activities and their genetic variations and the level of malondialdehyde (MDA) in type II diabetes patients living in the Adlyaman province in the southeast part of Turkey. Material and methods. One hundred patients diagnosed with type II DM (T2DM) and 100 healthy controls were included in the study. Malondialdehyde levels and antioxidant enzyme activities were measured spectrophometrically. DNA isolation was performed and genotyping was carried out using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Results. Our results revealed no significant differences in genotype distributions and allele frequencies of all polymorphisms between groups (p > 0.05). Significantly elevated MDA levels and a significant reduction in catalase (CAT) and paraoxonase (PON) enzyme activities were observed in patients compared to the control group in terms of study groups and genetic variations (p < 0.05). Moreover, CAT activity was reduced in TT genotype in terms of CAT -262 C/T polymorphism in patients (p < 0.05). Paraoxonase activity was observed to be lower in MM genotype in both groups (p < 0.05). Conclusions. CAT-262 C/T polymorphism may be one of the factors that lead to severe clinical situation in DM. Our results suggest that TT genotype may be more prone to lipid peroxidation.
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    Investigation of antioxidant enzyme polymorphism in chronic obstructive pulmonary disease patients
    (Scientific Publishers of India, 2018) Arpaci, Abdullah; Yalin, Serap; Taskin, Devrim; Fakioglu, Fusun; Ulutas, Kemal Turker; Comelekoglu, Ulku
    Background: Antioxidant system enzyme activity and polymorphism were investigated in Chronic Obstructive Pulmonary Disease (COPD), which is increasingly prevalent both in the world and our country. Methods: Malondialdehyde (MDA) was measured to determine lipid peroxidation, while Catalase (CAT), Paraoxonase (PON) and Superoxide Dismutase (SOD) enzyme activities were measured to determine antioxidant activity. For molecular analysis, leukocytes were separated and DNA was isolated from cell nuclei and the targeted genes were amplified by using PCR. Targeted base changes were detected by the restriction fragment length polymorphism technique. Results: Evaluating CAT polymorphism, there was 35 (35%) TT, 52 (52%) TC and 13 (13%) CC genotypes in the control group, as 38 (38%) TT, 40 (40%) TC and 22 (22%) CC genotypes in the patient. In SOD, there were 32 (32%) TT, 49 (49%) TC, 19 (19%) CC genotypes in the control group, as 34 (34%) TT, 50 (50%) TC and 16 (16%) CC genotypes in the patient. In PON55, there were 50 (50%) LL, 38 (38%) LM, 12 (12%) MM genotypes in the control group, as 39 (39%) LL, 49 (49%) LM and 12 (12%) MM genotypes in the patient. In PON192, there were 77 (77%) QQ, 21 (21%) QR, 2 (2%) RR genotypes in the control group, as 66 (66%) QQ, 29 (49%) QR, 5 (5%) RR genotypes in the patient. There was no significant difference in genotype distribution for CAT, SOD, PON55 and PON192 polymorphisms between groups. Conclusion: In conclusion, COPD patients were found to have a deficiency in the antioxidant defense system. This will lead to the development of oxidative stress in patients and the complications of COPD. There was no polymorphic difference between the control group and South African patients living in Adiyaman in COPD whose genetic characteristics were not fully explained. © 2018, Scientific Publishers of India. All rights reserved.
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    Oxidative stress and antioxidant enzyme activities in patients with cutaneous leishmaniasis in endemic region of Hatay (Antioch)
    (Asian Journal Of Chemistry, 2007) Culha, Gulnaz; Yalin, Erdinc; Yalin, Serap; Eroglu, Pelin; Berkoz, Mehmet
    Leishmania is the collective name for a number of disease caused by protozoon flagellates of genus Leishmania which have diverse clinical manifestations. In this study, we investigated the effect of free radicals and antioxidants on cutaneous leishmaniasis (CL). Venous blood samples of patients and controls were collected and analyzed for serum nitric oxide (NO) and malondialdehyde, (MDA) levels, superoxide dismutase (SOD) and catalase (CAT) activities. 53 treated CL patients, 42 untreated patients,and 30 healty control subjects were enrolled in this study. The levels of MDA and NO showed a significant increase (p < 0.05) in the untreated patients when compared to the treated patients and control groups. In the untreated group, the activities of both SOD and CAT were found to be decreased (p < 0.05) compared with values in the control and treated groups. After the treatment, NO and MDA levels were decreased whereas the activities of CAT and SOD were increased. These results provide some evidence for a potential role of increased lipid peroxidation and decreased enzymatic antioxidants in cutaneous leishmaniasis. These results suggested that oxidant stress plays an important role in the pathogenesis of cutaneous leishmaniasis.
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    Öğe
    Oxidative stress and antioxidant enzyme activities in patients with cutaneous leishmaniasis in endemic region of Hatay (ANTIOCH)
    (Chemical Publishing Co., 2007) Culha, Gulnaz; Yalin, Erdinc; Yalin, Serap; Eroglu, Pelin; Berkoz, Mehmet
    Leishmania is the collective name for a number of disease caused by protozoon flagellates of genus Leishmania which have diverse clinical manifestations. In this study, we investigated the effect of free radicals and antioxidants on cutaneous leishmaniasis (CL). Venous blood samples of patients and controls were collected and analyzed for serum nitric oxide (NO) and malondialdehyde (MDA) levels, superoxide dismutase (SOD) and catalase (CAT) activities. 53 treated CL patients, 42 untreated patients and 30 healty control subjects were enrolled in this study. The levels of MDA and NO showed a significant increase (p < 0.05) in the untreated patients when compared to the treated patients and control groups. In the untreated group, the activities of both SOD and CAT were found to be decreased (p < 0.05) compared with values in the control and treated groups. After the treatment, NO and MDA levels were decreased whereas the activities of CAT and SOD were increased. These results provide some evidence for a potential role of increased lipid peroxidation and decreased enzymatic antioxidants in cutaneous leishmaniasis. These results suggested that oxidant stress plays an important role in the pathogenesis of cutaneous leishmaniasis.