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Biomedical subjects

F Onder

Publications and source records attributed to F Onder.

8 recordsLinked to original sources
PubMed2000

Correlation of clinical and neuroradiological findings in down-gaze palsy.

BACKGROUND: Isolated down-gaze palsy is the least common pathology of vertical gaze. Patients with low-gaze palsy may consult an ophthalmologist with difficulty in reading and this may be the only ocular finding of a central nervous system lesion. METHODS: A 43-year-old man with isolated down-gaze palsy was examined. The medical history of the patient revealed that he had had myocardial infarction. RESULT: Magnetic resonance imaging disclosed an ischemic area at the right thalamus. CONCLUSION: Down-gaze palsy may be an important sign for the diagnosis of thalamic infarctions due to embolic syndrome.

Adult↗
PubMed2000

Effect of clinoptilolite on serum biochemical and haematological characters of broiler chickens during aflatoxicosis.

Clinoptilolite (CLI, a natural zeolite) incorporated into the diet at 1.5 and 2.5 per cent were evaluated for their ability to reduce the deleterious effects of 2.5 mg total aflatoxin (AF) kg(-1)diet on broiler chickens from 1 to 21 days of age. In total 360 broiler chicks were divided into six equal treatment groups (control, AF, CLI (1.5 per cent), AF plus CLI (1.5 per cent), CLI (2.5 per cent) and AF plus CLI (2.5 per cent)). When compared with the controls, AF treatment significantly decreased serum total protein, albumin, inorganic phosphorus, uric acid, total cholesterol and the values of haematocrit, red blood cell counts, mean corpuscular volume, haemoglobin, thrombocyte counts, percentage of monocyte counts; increased values of white blood cell and heterophil counts. The addition of CLI (1.5 per cent) and CLI (2.5 per cent) to the AF -containing diet reduced the adverse effects of AF and should be helpful in a solution to the aflatoxicosis problem in poultry.

Aflatoxins↗
PubMed1999

Clinical and histopathologic findings of iris nevus (Cogan-Reese) syndrome.

PURPOSE: To report a case of Cogan-Reese syndrome. METHOD: Case report. A 37-year-old man presented with Cogan-Reese syndrome. RESULTS: Visual acuity was 0.5 in the right eye and 1.0 in the left eye. There were corneal edema and pigmented nodules on the anterior surface of the iris, iris atrophy and ectropion uvea in the right eye. The intraocular pressure was 42 mmHg in the right eye and there was glaucomatous optic atrophy of the optic disk. Trabeculectomy with mitomycin C has been performed as the intraocular pressure did not decrease with the maximum medical treatment. Electron microscopic examination of the trabeculum and the iris tissue revealed a lot of melanocytic cells in the stroma. CONCLUSION: Trabeculectomy with mitomycin C might be effective in Cogan-Reese cases with glaucoma resistant to medical treatment.

Adult↗
PubMed1997

Anticardiolipin antibodies and retinal vascular complications in Behçet's disease.

BACKGROUND AND OBJECTIVE: Intravascular thrombosis is a well-recognized feature of Behçet's disease (BD). In this study, the existence of a connection between serum anticardiolipin (aCL) antibodies and retinal vascular complications in BD is investigated. PATIENTS AND METHODS: Serum aCL antibody levels were quantified in 31 patients with BD, all of whom fulfilled the major criteria of the disease. Patients were evaluated in terms of retinal vascular complications. Serum aCL antibody levels were determined through the ELISA method. Statistical analysis was performed with the chi-squared test and the Fisher exact test. RESULTS: Of 12 patients with high aCL antibody levels, retinal vascular thrombosis was detected in 5 and retinal vasculitis was present in 8. However, there was no statistically significant relation between these complications and serum aCL antibody elevation (P > .05). CONCLUSION: Based on this series of 31 patients with BD, there does not seem to be a significant correlation between retinal vascular complications and serum aCL antibody levels.

Adolescent↗
PubMedDate not supplied

Acute blindness and putaminal necrosis in methanol intoxication.

PURPOSE: To review the neuro-ophthalmological and radiological findings of acute methyl alcohol intoxication. METHOD: 8 acute methyl alcohol intoxication cases were evaluated. RESULTS: All patients were male and their ages varied between 21 and 55. At the initial examination, 6 to 12 days after methanol intake, visual acuity ranged from no light perception to counting fingers at 2 meters with no color perception. Bilateral dense central scotomas were detected in patients whose vision was slightly preserved. Pupillary light reactions were either absent or sluggish. In 4 cases, edema of the optic disk and the peripapillary nerve fiber layer was observed. Three months later, optic atrophy had developed. Five patients underwent magnetic resonance imaging. Bilateral putaminal hyperintense lesions on T2 weighted images were observed in 3 cases. Two patients died and autopsy permission could not be obtained. Follow-up examination 12 months later revealed optic atrophy in the other six cases, with no improvement in vision. CONCLUSION: Methanol intoxication is detrimental to health, possibly resulting in blindness and occasionally death. In association with ocular signs and the other systemic and laboratory features, the ophthalmologist should be alert to the diagnosis of methanol intoxication in which visual loss may be the only symptom.

Acute Disease↗