PubMed Health⌕ Search

Biomedical subjects

Turker Cetin

Publications and source records attributed to Turker Cetin.

8 recordsLinked to original sources

Cognitive dysfunction in beta-thalassemia minor.

Beta-thalassemia minor is a common, hereditary, and mostly symptomless disease. Previous studies have shown that lower hemoglobin values are associated with poorer cognitive functions. We aimed to evaluate the cognitive function in patients with beta-thalassemia minor. Thirty-two male subjects with beta-thalassemia minor and 32 sex-, age-, and education status-matched healthy subjects were enrolled in the study. Blood tests and P300 potentials were carried out. P300 potential latency in all patients was significantly longer than those in the control group (337.63+/-34.89 msec and 310.66+/-14.30 msec, respectively; t 4.046, P<0.001). The amplitudes of P300 in patient group were significantly lower than those in the control group (5.19+/-3.59 microV and 9.81+/-3.33 microV, respectively; t 5.349, P<0.001). In this study, we have found that P300 potentials are adversely affected for cognitive functions in patients with beta-thalassemia minor.

Adolescent↗

Donor cell leukemia in a patient developing 11 months after an allogeneic bone marrow transplantation for chronic myeloid leukemia.

A 38-year-old female with chronic myeloid leukemia underwent an allogeneic bone marrow transplantation from her full-matched brother. Eleven months later, she readmitted with an acute leukemia that was shown to be of donor origin. The patient never achieved a remission even after chemotherapies with cytarabine and mitoxantrone, donor lymphocyte infusion, and second allogeneic peripheral blood stem cell transplantation. Donor cell leukemia (DCL) is sometimes misdiagnosed as relapse by clinicians and the real incidence may be higher than expected. Cytogenetic and molecular techniques may be helpful to clarify the issue of the leukemia. The current case is another case of DCL reported in the literature after an allogeneic transplant for a kind of leukemia.

Adult↗

Leucopenia and thrombocytopenia possibly associated with lamotrigine use in a patient.

Haematological side effects are rather exceptional with lamotrigine. We report the case of a 25-year-old woman with epilepsy who developed combined leucopenia and thrombocytopenia eight weeks after starting lamotrigine. Within weeks after lamotrigine was discontinued, all of the haematopoietic abnormalities had disappeared. To our knowledge, this is the first report of combined leucopenia and thrombocytopenia associated with lamotrigine treatment suggesting, in our patient, a causal reaction.

Adult↗

Outer hair cell activity of the cochlea in patients with iron deficiency anemia.

OBJECTIVE: Iron deficiency anemia is a common disorder, which has been reported to affect the auditory system. However, there are some conflicting points related with the pattern of hearing impairment. The aim of this study is to analyze the outer hair cell activity of the cochlea in patients with iron deficiency anemia. METHOD: Pure-tone audiometry (PTA) (250-6000 Hz) and distortion product otoacoustic emission (DPOAE) results of 42 patients with iron deficiency anemia and 22 healthy, age and sex matched subjects for the control group were compared. Cubic DPOAEs (2f1-f2) were obtained at 65 and 55 dB sound pressure level (SPL). DP grams were plotted as a function of f2 and signal-to-noise ratio (SNR) was specified as the difference in decibels SPL between DPOAE amplitude and the ambient noise level at a given f2. In DP grams, DP amplitudes and noise levels obtained from the baseline measurements were presented as the upper and lower limits of DP amplitude and noise level that were the 10th and 90th percentiles calculated by adding and subtracting standard deviations and from mean baseline DP amplitude and noise level. Independent-samples t-test is used for comparison of the groups. RESULTS: Pure-tone audiometry was normal in patients with iron deficiency anemia and control subjects and there was no significant difference in comparison of DPOAE in both groups and both sides and the results were between two percentiles (P > 0.05). CONCLUSION: The results of the present study did not support a casual relationship between the iron deficiency anemia and the auditory dysfunction on the basis of DPOAE.

Adult↗

Renal tubular dysfunction in beta-thalassemia minor.

BACKGROUND: Persons with beta-thalassemia minor usually are symptomless. However, we previously reported renal tubular dysfunction in a patient with beta-thalassemia minor. The aim of this study is to investigate renal function in patients with beta-thalassemia minor. METHODS: Forty-one subjects with beta-thalassemia minor and 20 sex- and age-matched healthy subjects were enrolled in the study. For analysis, patients were divided into 2 groups: group A, all patients with anemia (n = 19), and group B, patients without anemia (n = 22). Blood and 24-hour urine samples were obtained for hematologic and biochemical analysis. RESULTS: Anemic patients had increased urinary zinc excretion (U(zinc)) and fractional excretion of sodium (FE(Na)) and uric acid (FE(UA)) compared with both controls and patients without anemia. Hemoglobin levels correlated significantly in a negative manner with U(zinc), FE(Na), and FE(UA) in patients with beta-thalassemia minor. However, serum lactate dehydrogenase levels correlated significantly in a positive manner with the same parameters. In addition, 6 of 41 patients (14.6%) with beta-thalassemia minor showed significant signs of renal tubulopathy, such as hypercalciuria, decreased tubular reabsorption of phosphorus with hypophosphatemia, hypomagnesemia with renal magnesium wasting, hypouricemia with renal uric acid wasting, and tubular proteinuria. CONCLUSION: Proximal renal tubular dysfunction is not rare in patients with beta-thalassemia minor.

Adult↗

Spironolactone: is it a novel drug for the prevention of amphotericin B-related hypokalemia in cancer patients?

OBJECTIVE: Nephrotoxicity is the major adverse effect of amphotericin B (AmB), often limiting administration of full dosage. Selective distal tubular epithelial toxicity seems to be responsible for the profound potassium wasting that is a major clinical side effect of treatment with AmB. Potassium depletion also potentiates the tubular toxicity of AmB. This study was designed to assess the ability of spironolactone to reduce potassium requirements and to prevent hypokalemia in neutropenic patients on AmB treatment. METHODS: In this study 26 patients with various hematological disorders were randomized to receive either intravenous AmB alone or AmB and oral spironolactone 100 mg twice daily when developing a proven or suspected fungal infection. RESULTS: Patients receiving concomitant AmB and spironolactone had significantly higher plasma potassium levels than those receiving AmB alone (P = 0.0027). Those patients receiving AmB and spironolactone required significantly less potassium supplementation to maintain their plasma potassium within the normal range (P = 0.022). Moreover, urinary potassium losses were significantly less in patients receiving AmB and spironolactone than those receiving AmB alone (P = 0.040). CONCLUSION: This study showed that spironolactone can reduce potassium requirements and prevent hypokalemia by reducing urinary potassium loss in neutropenic patients on AmB treatment.

Amphotericin B↗

Lipid profile and anticardiolipin antibodies in Behcet's disease.

BACKGROUND: Behcet's disease (BD) is a multisystem disorder characterized by a relapsing inflammatory process of unknown etiology. It is well known that atherothrombosis in systemic inflammatory disorders is closely related to coagulation and lipid metabolism abnormalities. The purpose of this study was to investigate some parameters of lipid metabolism, lipoprotein (a) [Lp(a)] and anticardiolipin antibody (ACA) levels and the relationship of these parameters with the clinical activity of BD. METHODS: Thirty three patients with BD (15 active, 18 inactive cases) and 20 healthy controls participated in the study. After performing a detailed physical exam, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), very-low-density lipoprotein cholesterol (VLDL-C), apoprotein A and B (apo-A, apo-B), Lp(a), and ACA levels (ACA-IgG and IgM) were measured in all participants. RESULTS: Patients with active BD had higher ESR, CRP and Lp(a) levels, and lower apo-A and HDL-C levels compared with the patients with inactive BD and healthy controls. ACA-IgG and IgM levels were higher in patients with active BD than healthy controls but not higher than patients with inactive BD. On the other hand, ACA-IgG level was higher in active and inactive cases with vascular involvement than in those of active and inactive cases without vascular involvement. In the analyses of correlation, in active BD patients we found a positive correlation between CRP and Lp(a) levels. CONCLUSIONS: Our findings suggest that Lp(a) behaves as an acute phase reactant and ACA levels are increased in patients with active BD. Data from patients with active BD may be compatible with the serum profile, which is accepted as a risk for the development of atherothrombosis.

Adult↗