Biomedical subjects

Vedat Bulut

Publications and source records attributed to Vedat Bulut.

7 recordsLinked to original sources

PubMed2005

Determination of intracellular cytokines produced by Th1 and Th2 cells using flow cytometry in patients with brucellosis.

The aim of the study was to evaluate intracellular interferon-gamma (IFN-gamma), and interleukin-4 (IL-4) levels in pre- and post-treatment periods of brucellosis patients and to determine the relationship between these parameters and patients' clinical findings. Twenty-five patients diagnosed as brucellosis and 11 aged-matched healthy volunteers were included in the study. CD3+CD4+ T lymphocytes levels were significantly lower in patients with brucellosis as compared to the control group. CD3+CD8+ T lymphocytes and CD3+IFN-gamma+ levels were increased in brucellosis patients compared with the control group. CD4+IFN-gamma+ and CD4+IL-4+ levels were no different between patients and healthy individuals. CD3+IL-4+ levels decreased in patients compared with healthy controls. Pre-treatment CD3+IFN-gamma+ levels dramatically increased in patients responsive to management compared with the unresponsive ones. In responsive cases, CD3+IFN-gamma+ levels decreased statistically after the treatment while in unresponsive cases no meaningful change was observed with respect to treatment. Adding IFN-gamma to the treatment for improving the depleted levels of IFN-gamma can be beneficial in patients with brucellosis who shows a tendency to chronicity or patients who do not respond to the treatment.

Adolescent↗

PubMed2005

Procalcitonin, c-reactive protein and neopterin levels in patients with coronary atherosclerosis.

OBJECTIVE: Recent studies demonstrate that the serum inflammatory markers increase in patients with atherosclerosis. We aimed to assess whether a difference exists between patients with acute coronary syndrome and patients with stable angina pectoris in respect to serum neopterin, procalcitonin (PCT) and C-reactive protein (CRP) levels. METHODS AND RESULTS: A total of 52 patients (42 male, 10 female) who had atherosclerosis confirmed by angiography and were being followed up for an acute coronary syndrome were recruited and for control group, 45 patients with stable angina pectoris (SA) (35 male and 10 female) who underwent coronary angiography, were examined. Serum concentrations of neopterin, CRP and PCT in the study group (acute coronary syndrome) were compared to control group (stable angina pectoris). The mean neopterin level of the study group was 22.47 +/- 2.93 nmol/l, the mean CRP level was 30.40 +/- 8.05 mg/l and the mean PCT level was 0.40 +/- 0.04 ng/ml. In control group these levels were 12.26 +/- 0.61 nmol/l (p < 0.05), 5.26 +/- 0.64 mg/l (p < 0.001) and 0.19 +/- 0.02 ng/ml (p < 0.001), respectively. CONCLUSION: In the presented study our results showed that these markers can be useful for the assessment of inflammation related to atherosclerosis.

Angina Pectoris↗

PubMed2005

The effects of exercise on the immune system and stress hormones in sportswomen.

BACKGROUND: Despite the numerous studies controversial results exist in specific immune response to exercise. The aim of this study was to determining the differences in the humoral immune parameters, serum ACTH and cortisol levels existing between sportswomen and sedentary subjects and the effect of acute aerobic and anaerobic exercise on these parameters. MATERIALS/METHODS: 40 sportswomen (Groups 1 and 2) and 20 sedentary women (Group 3) were enrolled and Group 1 performed aerobic exercise on a treadmill for 30 minutes while the Group 2 was subjected to the Wingate effort test for 30 seconds. Before exercising (at 8.30 a.m), immediately after the exercise, and 4 hours, days 2 and 5 days after exercising blood samples were obtained and the levels of IgA, IgG, IgM, complement 3 (C3) and complement 4 (C4) were determined turbidometrically. RESULTS: Before exercise: the means of IgA and IgG values in the G1 and G2 groups were higher than the Group G3, and the mean cortisol levels in the sedentary group was significantly higher (p<0.05). After Exercise: Whereas the C3 and C4 levels decreased significantly at the end of the exercise in Group 1 and 2 (p<0.05), the IgA, IgG (p<0.05) and IgM levels (p<0.01) at the 4th and 5th determinations were observed to be significantly higher in only the Group 1. The cortisol and ACTH levels were found to have increased significantly (p<0.05) in the Group 1. In Group 2, no changes were observed in the IgA, IgG and IgM levels. CONCLUSIONS: We conclude that regular and moderate exercise has favorable effects on the immune system by increasing immunoglobulins which are potent protective factors.

Adrenocorticotropic Hormone↗

PubMed2004

The role of allergy in the etiology of otitis media with effusion; immune system and cytokines.

OBJECTIVES: Otitis media with effusion (OME) is one of the major causes of hearing loss in childhood. In this study, the role and the importance of allergy in the etiology of OME was evaluated with reference to the immune system and the cytokines. PATIENTS AND METHODS: Seventy-eight ears of 59 patients who had undergone myringotomy with the diagnosis of OME were included in this study. Serum samples of 26 healthy children who were in the same age group and were living in the same region under similar socioeconomic circumstances were examined as the control group. RESULTS: Interferon (IFN)-gamma levels were significantly lower and IL-4 and IgE levels were significantly higher in the serum samples of the patient group when compared with those of the control group (p<0.05). A positive correlation was found between IL-4 and IgE in the serum samples of patients (p<0.01). However, there were negative correlations between IFN-gamma and both IgE and IL-4 levels, that were not statistically significant. CONCLUSION: T-helper polarization suggests that allergy may have a role in the etiology of OME. Therefore, it should be kept in mind in the treatment of OME.

Case-Control Studies↗

PubMed2002

Trace elements in viral hepatitis.

In this study, serum trace elements, including selenium (Se), zinc (Zn), copper (Cu), were determined by using Atomic Absorption Spectrophotometer (SpectrAA 250 Plus Zeeman, Varian, Australia) in sera of patients with viral hepatitis (A, B, C, D, E) cases (n = 102), and statistically compared with the controls (n = 52). In viral hepatitis, Cu levels were found as 3.23 +/- 1.02 mg/L, and this value was significantly higher than the control group (1.13 +/- 0.21) (p < 0.01). Both, Se and Zn levels found to be significantly low in viral hepatitis cases (p < 0.01). While Se level was 81.4 +/- 26.01 microg/L in viral hepatitis (n = 101), it was found to be 166.15 +/- 4.58 microg/L in healthy individuals. Meanwhile, Zn levels were 0.230 +/- 0.081 mg/L and 0.748 +/- 0.392 mg/L in hepatitis cases (n = 101) and the control group, respectively. There was no difference amongst viral hepatitis groups classified in regard with agents and clinical manifestation, such as A, acute hepatitis B, chronic hepatitis B, C, D and E. Previously, it was indicated that absorption disorders in gastrointestinal system, especially in chronic cases, were not main causes of decrease of trace elements by iron and several other parameters in sera of the cases. Therefore, we suggest that decrease in Zn and Se levels and elevation in Cu levels are probably resulted from defence strategies of organism and induced by the hormone-like substances.

Analysis of Variance↗

PubMed2002

Antimonial therapy induces circulating proinflammatory cytokines in patients with cutaneous leishmaniasis.

The objective of this study was to evaluate the association between antimonial therapy and circulating levels of proinflammatory cytokines in patients with cutaneous leishmaniasis (CL). Patients were treated with conventional chemotherapy by using pentavalent antimonium salts (Glucantime) for 3 weeks. Circulating plasma levels of the proinflammatory cytokines interleukin-1beta (IL-1beta), IL-6, IL-8, and tumor necrosis factor alpha (TNF-alpha) were determined for CL patients and healthy subjects before and 3 weeks after the treatment was started. Plasma IL-1beta, IL-6, IL-8, and TNF-alpha levels were significantly higher for pretreatment CL patients than for healthy subjects. Proinflammatory cytokines significantly increased after 21 days postinfection compared to levels for the pretreatment patients. These increments were approximately 3-fold for IL-1beta and TNF-alpha levels, 10-fold for IL-6 levels, and 20-fold for IL-8 levels in patients with CL. Taken together these results indicate that circulating proinflammatory cytokine levels were increased in patients with CL as a consequence of host defense strategies, and antimonial therapy may induce these cytokines by affecting the macrophage or other components of the host defense system.

Adolescent↗

PubMedDate not supplied

Effect of chronic exercise on immunoglobin, complement and leukocyte types in volleyball players and athletes.

BACKGROUND: The objective of this study was to investigate the effect of various sports disciplines on basic elements of the acquired and natural defense systems and to compare their results with that of non-sporting controls. MATERIALS/METHODS: The study included 15 sedentary (Group 1), 15 volleyball players (Group 2) and 15 long distance running athletes (Group 3). The VO2 Max for the groups was determined by subjecting the individuals to a 20 meter Shuttle run test. Immunoglobin and complement levels were measured by the turbidometric method. Leukocyte counts were made through peripheral blood smear examination. RESULTS: The IgA levels in sedentary living individuals was found to be lower than that in volleyball and athlete groups while that in athletes was in turn lower than that in volleyball players (p<0.05). In volleyball players the IgG level was significantly higher than both the sedentary living individuals and the athletes (p<0.05). IgM however, showed a significantly higher level in the sedentary group than in both athletes and volleyball players. The C3 levels in athletes was significantly lower than that of volleyball players and sedentary individuals (p<0.05), while the C4 levels were higher in the volleyball group (p<0.05). The leukocyte, eosinophil, and monocyte counts in the athletes were also significantly lower than those in the volleyball and sedentary groups (p<0.05). The values for the sedentary group on the other hand however, was found to be lower than those of the volleyball players (p<0.05). The neutrophil counts was lower in the sedentary group than in the volleyball group (p<0.05). The levels in the athlete group was lower than that in the volleyball group, however (p<0.05). The lymphocyte counts in volleyball players was higher than that in the sedentary group (p<0.05). CONCLUSIONS: In conclusion, changes in the immune parameters were found to be dependent on the type of physical exercise performed on regular basis. Considering the protective antibody response in those performing regular sports, moderate exercise carried out on regular basis can be said to affect positively mononuclear and polymorphonuclear phagocytic cells--the basic elements of the natural immune system.

Adult↗