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Biomedical subjects

C Korkmaz

Publications and source records attributed to C Korkmaz.

At least 19 recordsLinked to original sources

Addison's disease associated with widespread abdomino-pelvic visceral calcification due to secondary amyloidosis: a case report.

We report the case of a 42-year-old woman who presented with Addison's disease with widespread abdomino-pelvic visceral calcifications due to secondary amyloidosis. AA amyloidosis and calcification were supported by histological evidence of liver tissue. To our knowledge, no other case with such extensive visceral calcification involving the adrenals, liver, ovaries, and renal secondary to amyloidosis has been published.

Abdomen↗

Renal involvement in primary antiphospholipid syndrome and its response to immunosuppressive therapy.

Antiphospholipid syndrome (APS) is the association between antiphospholipid antibodies, venous and arterial thrombosis and pregnancy morbidity. Although the kidney may be affected in APS, the treatment of renal involvement is yet to be elucidated. This report describes the clinical and laboratory features of four patients with primary APS nephropathy, and the beneficial effect of immunosuppressive therapy accompanied by warfarin and angiotensin-converting enzyme inhibitor. We also briefly discuss the possible mechanisms of the beneficial effects of immunosuppressives on primary APS nephropathy.

Adult↗

Effect of mannitol in experimental spinal cord injury: an ultrastructural and electrophysiological study.

BACKGROUND: Although many experimental and clinical studies were performed on the pathophysiology and treatment of spinal cord injury (SCI), the electrophysiological and ultrastructural changes of the spinal cord were not precisely evaluated. AIMS: To investigate the effect of mannitol on Somatosensory Evoked Potentials (SSEP), postoperative neurological recovery and ultrastructural findings after an experimental SCI. SETTING: The experimental microsurgery laboratory of a university hospital. DESIGN: A prospective, randomized animal study. MATERIAL AND METHODS: Sprague-Dawley rats were used and divided into three groups (Groups I-III) for this study. Those in Group I were control animals who underwent laminectomy only, and non-traumatized spinal cord samples were obtained 2 weeks later. SCI was produced in Groups II and III using clip compression technique, and cord samples were obtained 2 weeks later. The rats in Group II received 2 g/kg of 20% mannitol intraperitoneally, immediately and three hours after trauma was induced; and those in Group III received the same amount of 0,9% NaCl in the same manner. Preoperative and postoperative SSEP records at the end of 2 weeks were obtained. Electron microscopy examination of the cord samples was done at 2 weeks postoperatively. STATISTICAL ANALYSIS USED: Fischer's Exact Test. RESULTS: SSEP records, ultrastructural findings and clinical recovery showed that minor neural damage and significant recovery occurred in Group II. CONCLUSION: This study demonstrates that the administration of 2 g/kg of 20% mannitol produces significant improvement in the neural structures and protects the spinal cord following injury.

Animals↗

Calciphylaxis in a patient with rheumatoid arthritis without renal failure and hyperparathyroidism: the possible role of long-term steroid use and protein S deficiency.

Calciphylaxis is a rare and life-threatening condition of progressive cutaneous necrosis secondary to small and medium-sized vessel calcification that is seen almost exclusively in patients with end-stage renal disease and hyperparathyroidism. We report a case of calciphylaxis that may very well be due to a long-term steroid use in a rheumatoid arthritis patient who had neither end-stage renal disease nor hyperparathyroidism. We also discuss the possible role of protein S deficiency as a contributing factor.

Adult↗

Acute phase response in familial Mediterranean fever.

OBJECTIVE: To test the hypothesis that not all acute phase reactants respond in the same way during attacks of familial Mediterranean fever (FMF) and that there is a subclinical acute phase response (APR) in a proportion of patients during the interval between attacks. METHODS: Blood and urine samples were obtained from 49 patients with FMF during an attack and the attack-free period that followed, to test for erythrocyte sedimentation rate, C reactive protein (CRP), fibrinogen, white blood cell count, platelet count, factor VIII related antigen, haptoglobin, protein electrophoresis, ferritin, proteinuria, and haematuria. Control groups comprised 29 patients with juvenile idiopathic arthritis, 10 patients with various infectious diseases, and 19 healthy subjects. RESULTS: A marked APR was seen during the FMF attacks which was comparable with that obtained in the diseased control groups. CRP was the only acute phase protein that was raised during all attacks. Neither thrombocytosis nor an increase in ferritin levels (except one) was noted in any attack. Serum albumin levels remained unchanged. In two thirds of the patients with FMF a continuing APR was seen in between the attacks. CONCLUSION: Platelet, ferritin, and albumin responses are not part of the significant APR seen during short lived attacks of FMF, and inflammation continues in about two thirds of the patients during an attack-free period.

Acute-Phase Reaction↗

AgNOR/P53 expression compared with different grades in bladder carcinoma.

OBJECTIVE: The aim of this study is to assess the relation between silver-strained nucleolar organizer regions (AgNOR)/P53 expression and urothelial neoplasm of the bladder which graded according to the WHO/ISUP tumor grading system. METHODS: Transurethral resection materials (TUR) and cystectomy specimens from 52 patients with bladder urothelial carcinomas were stained by AgNORs and analyzed immunohistochemically using an avidinbiotin peroxidase method for p53 staining and also silver for AgNORs. RESULTS: Nuclear p53 accumulation was determined in two of 5 LMP cases (%40), in 10 of 22 LGC (%45.4), and in 8 of 25 HGC (%32). Positivity of p53 accumulation was observed in 20 (%57.7) of all cases. There was no statistically significant relationship between AgNOR score of p53(+) and p53(-) cases. There was no correlation between LGC and LMP, also between LGC and HGC (p > 0.05), but a meaningful relationship was found between LMP and HGC (p = 0.03). Association between P53 and grade, AgNOR value and grade, p53 and AgNOR was found statistically insignificant. CONCLUSIONS: Although we found a statistically significant correlation between AgNOR count of LMP and HGC, this study did not show a satisfying correlation between AgNOR, p53 and any grade of urothelial carcinoma.

Carcinoma, Transitional Cell↗

Antiphospholipid syndrome associated with intestinal amoebiasis.

We present a case of intestinal amoebiasis with subsequent development of antiphospholipid syndrome, manifested by deep vein thrombosis and pulmonary emboli. Anticardiolipin antibodies (aCL) of IgM type at medium titer and aCL IgG antibody at low titer were determined during the days after the onset of infection. To our knowledge this is the first case of antiphospholipid syndrome associated with amoebiasis to be presented in the literature.

Adult↗

A survey of phenotype II in familial Mediterranean fever.

OBJECTIVE: Phenotype II in familial Mediterranean fever (FMF) is the onset of amyloidosis before the onset of FMF with its typical attacks, or as an isolated finding in a member of an FMF family. Its presence was investigated by looking for proteinuria among the asymptomatic relatives of patients with FMF complicated by amyloidosis and among the asymptomatic relatives of patients with juvenile chronic arthritis (JCA) complicated by amyloidosis, used as controls. METHODS: The relatives of the index patients (13 with FMF and amyloidosis) and controls (6 with JCA and amyloidosis) were screened for proteinuria. Rectal biopsies were performed when proteinuria was significant (>/=300 mg/d). RESULTS: 461 relatives were screened in the FMF group and 269 among the controls. Two of the FMF relatives and one JCA relative had no symptoms of FMF but had significant proteinuria. Rectal biopsy for amyloidosis was negative in all instances of significant proteinuria. CONCLUSION: Phenotype II is uncommon among the relatives of patients with FMF and amyloidosis.

Adolescent↗

Limitation of shockwave-induced enhanced crystal deposition in traumatized tissue by verapamil in rabbit model.

OBJECTIVE: To evaluate the possible protective effect of verapamil (a calcium channel blocking agent) against the traumatizing effects of high-energy shockwaves (HESW) and new stone formation, as indicated by crystal deposition in the renal parenchyma, an experimental study was performed in rabbits. METHODS: A total of 65 rabbits were included. During severe hyperoxaluria induced by continuous ethylene glycol (EG) (0.75%) administration, animals in the first group (N = 15) received EG only, and animals in the second group underwent administration of 500 to 1500 shockwaves, animals in the third group (N = 15) received verapamil (0.1 mg/kg) for 3 days prior to HESW application, a control group (N = 15) received various numbers (500 to 1500) of shockwaves alone. Sham-treated animals (N = 5) constituted the last group in our study. Three months after shockwave application, tissue sections obtained from treated and untreated kidneys were evaluated histopathologically under light microscopy and transmission electron microscopy (TEM) for the presence and degree of crystal deposition in the cortical parenchymal region subjected to HESW. RESULTS: Whereas crystal deposition was evident in the intercellular region and intratubular parts of the parenchyma in animals receiving EG and HESW, especially in those receiving relatively higher numbers of shockwaves), animals receiving verapamil demonstrated limited or no crystal formation. No significant crystal deposition could be noted in specimens from animals undergoing either EG or SWL alone, and sham-treated animals demonstrated no significant alteration, as expected. CONCLUSION: Using this model, the traumatic effects of HESW could be evaluated as a factor in new stone formation after SWL. Verapamil has been found to be protective against crystal deposition.

Animals↗

Epitheloid sarcoma of the penis.

We report a case representing the clinical as well as histopathologic features of epitheloid sarcoma. Both a clinical review and the results of definitive treatment together with the follow-up data are presented.

Adult↗

Serum soluble intercellular adhesion molecule 1 and interleukin 8 levels in familial Mediterranean fever.

OBJECTIVE: Familial Mediterranean fever (FMF) is a disease of unknown etiology characterized by recurrent attacks of polyserositis (peritonitis, pleuritis, and arthritis) and fever. We measured levels of soluble intercellular adhesion molecule 1 (sICAM-1) and interleukin 8 (IL-8), which are important mediators in leukocyte-endothelial adhesion and leukocyte accumulation in tissues. METHODS: sICAM-1 and IL-8 levels were studied in 30 patients with FMF during attacks and remission, along with 23 healthy and 26 disease controls. sICAM-1 and IL-8 levels were measured with commercial ELISA systems. RESULTS: Median levels of sICAM-1 were significantly elevated in patients with FMF during attacks (FMF-a) and remission periods (FMF-r) compared to healthy controls (HC) (FMF-a: 600 ng/ml, FMF-r: 520 ng/ml, HC: 353 ng/ml; FMF-a vs. HC: p<0.0001, FMF-r vs. HC: p = 0.002). IL-8 levels were also significantly elevated in FMF-a compared to HC (37 vs. 25 pg/ml; p = 0.009), but not during remission (26 pg/ml; p = 0.7). A significant correlation was observed between sICAM-1 and IL-8 levels (r = 0.33, p = 0.01). sICAM-1 levels also correlated significantly with erythrocyte sedimentation rate, C-reactive protein, and fibrinogen levels of patients with FMF. CONCLUSION: Increased levels of sICAM-1 and IL-8 in FMF suggest that neutrophils are active with increased adhesion in FMF. Since increased levels of sICAM-1 are also observed during remission, subclinical disease activity and inflammation seem to be present in some patients.

Acute Disease↗

Widespread nocardiosis in two patients with Behçet's disease.

Nocardia spp., a group of gram-positive variably acid-fast aerobic bacteria, are opportunistic pathogens in immunocompromised hosts. We here-within describe 2 cases of widespread nocardiosis in patients with Behcet's disease. In addition to endogen endophthalmitis in case 1, both cases developed lung, brain and skin involvement. Despite brain involvement, the prognosis was good, although vision was completely lost in case 1, which was directly attributable to a delay in both diagnosis and treatment.

Adult↗

Nailfold capillary abnormalities in patients with familial Mediterranean fever.

OBJECTIVE: To determine the frequency and the degree of the nailfold capillary abnormalities in patients with familial Mediterranean fever (FMF). METHODS: We studied 67 (M/F: 28/39) patients with FMF. Thirty-seven healthy subjects (16/21), 19 patients (0/19) with systemic lupus erythematosus (SLE), and 8 patients (0/8) with scleroderma (PSS) were also studied. All participants were questioned for the presence of Raynaud's phenomenon (RP). Capillary loops of eight fingers were evaluated and scored with respect to avascular areas, tortuosity, enlargement and extravasations by the conventional capillary microscopy. Both FMF patients and healthy controls were examined in a blind manner. RESULTS: FMF patients differed from healthy controls by the presence of increased tortuosity and enlargement of capillary loops, but not by microhemorrhages. Being female and the presence of RP were the factors that correlated with the capillaroscopic findings. CONCLUSION: Capillary abnormalities are seen in patients with FMF.

Adolescent↗