Detection of stent restenosis in single vessel CAD: comparison of 201Tl and gated 99mTc-MIBI SPECT.

Background And Aim: After successful percutaneous transluminal coronary angioplasty (PTCA), stent restenosis is observed in up to 40% of patients during the first year. The aim of this study was to determine the value of myocardial perfusion studies (MPSs) in the detection of stent restenosis in a symptomatic patient cohort.

Methods: A total of 80 patients without prior myocardial infarction (MI) and who underwent one-vessel PTCA with stent implantation were included to study.

Dobutamine Tc-99m furifosmin SPECT in detection of coronary artery disease: evaluation of same day, rest-stress protocol.

The purpose of this study was to evaluate the feasibility and diagnostic accuracy of same day rest-stress myocardial perfusion SPECT (MP SPECT) protocol by using technetium-99m (Tc-99m) furifosmin in conjunction with dobutamine stress test in subjects in whom coronary artery disease (CAD) had been proven or excluded at coronary angiography (CA). The study group consisted of 25 patients (8 female and 17 male with a mean age of 53.04 +/- 8.

Thallium-201 myocardial SPECT in a patient with mirror-image dextrocardia and left bundle branch block.

A 53-year-old male patient with a previous diagnosis of situs inversus with mirror-image dextrocardia underwent thallium-201 (Tl-201) stress-redistribution myocardial perfusion single photon emission computed tomography (SPECT). Electrocardiogram (ECG) obtained on right hemithorax revealed constant complete left bundle branch block. Tl-201 stress-redistribution SPECT images revealed abnormal perfusion with reversible ischemia in the anteroseptal, septal and inferoseptal walls.

Pseudomalignant myositis ossificans of the wrist causing compression of the ulnar nerve and artery. A case report.

Myositis ossificans (MO) is a condition characterised by focal, benign and self-limited idiopathic heterotopic bone formation. It is extremely rare in the hand and wrist and may lead to concomitant nerve compression. Because of the rare incidence of pseudomalignant MO at the wrist and hand, we found it of interest to report a case of this condition localised to the wrist.

L-arginine in focal cerebral ischemia.

Nitric oxide and its precursor, L-arginine, have a great importance in cerebrovascular studies. In this study, we elucidate the dose dependent L-arginine effects on cerebral ischemia. The study involved 96 New Zealand albino rabbits, which were randomly allocated into four groups.

Myocardial indium-111-antimyosin uptake in essential hypertension.

Aim: Evaluation of myocardial uptake of (111)In-anti-myosin antibodies in patients with essential hypertension for the verification of our hypothesis that it may increase in stage 1 in the left ventricle as a result of myocardial damage.

Patients, Methods: Twelve men (mean age: 59+/-2.4 years) suffering from angina like symptoms and essential hypertension in clinical stage 1 according to the JNC-VI criteria were included into the study.

The effects of intravenous iron treatment on oxidant stress and erythrocyte deformability in hemodialysis patients.

Background: It is well known that free iron causes oxidant stress to increase. However data concerning whether intravenously (I.V) administered iron in maintenance doses (10-20 mg) gives rise to increased oxidant stress and disturbed erythrocyte deformability (EDEF) in hemodialysis (HD) patients is lacking.

Effects of hyaluronic acid-carboxymethylcellulose antiadhesion barrier on ischemic colonic anastomosis: an experimental study.

Purpose: Intraperitoneal adhesions may help the healing of marginally viable bowel ends. If adhesion formation is prevented by various methods, the integrity of ischemic bowel anastomosis may be compromised. Thus, we decided to study the effects of hyaluronic acid-carboxymethylcellulose, an antiadhesion barrier, on ischemic bowel anastomosis.

Cultivation of oyster mushroom on waste paper with some added supplementary materials.

Spawn running, pin head and fruit body formation, and mushroom yield of oyster mushroom (Pleurotus ostreatus) on waste paper supplemented with peat, chicken manure and husk rice (90+10; 80+20 w:w) were studied. The fastest spawn running (mycelia development) (15.8 days), pin head formation (21.

Clear cell meningioma: case report and literature review.

The clear cell meningioma is rare and a recently described histologic variant of meningioma. The most interesting aspect of clear cell meningioma is the high recurrence rate and agressiveness. Until now 17 intracranial clear cell meningioma cases had been reported in the English language literature.

Inhibitor binding alters the directions of domain motions in HIV-1 reverse transcriptase.

Understanding the molecular mechanisms of HIV-1 reverse transcriptase (RT) action and drug inhibition is essential for designing effective antiretroviral therapies. Although comparisons of the different crystal forms of RT give insights into the flexibility of different domains, a direct computational assessment of the effect of inhibitor binding on the collective dynamics of RT is lacking. A structure-based approach is used here for exploring the dynamics of RT in unliganded and inhibitor-bound forms.

Hepatobiliary scintigraphy for evaluating the hepatotoxic effect of halothane and the protective effect of catechin in comparison with histo-chemical analysis of liver tissue.

Halothane and its metabolites cause liver damage by decreasing liver blood flow and generating free-radical species. Catechin suppresses lipid peroxidation and increases enzyme activity, therefore it seems to be capable of protecting liver parenchyma against the direct toxic effect of halothane. The aim of this study was to investigate the role of hepatobiliary scintigraphy in detecting liver damage after halothane anaesthesia and the protective effect of catechin in comparison with histo-chemical analysis.

The comparison of electron microscopy and scintigraphy in determining the protective effect of dimethylsulphoxide (DMSO) on ischemia/reperfusion injury through Pringle maneuver.

Background/aims: We investigated the role of the electron microscopy and hepatobiliary scintigraphy in determining the effect of DMSO (dimethysulphoxide) and ischemia/reperfusion injury in the liver after the Pringle maneuver.

Methodology: Twenty-four rabbits were divided into the following groups; A: Control group, B: Pringle, C: 10 mg/kg DMSO, D: 1 g/kg DMSO + Pringle. Group A was considered as a control group and only laparotomy was applied.

The vasorelaxant effect of dipyrone on an experimental cerebral vasospasm model in rabbits.

Cerebral vasospasm is an important clinical phenomenon associated with a high mortality rate and therefore any promising findings in the laboratory deserve assessment in clinical practice. Dipyrone (Metamizol) has been in clinical use for its non-narcotic analgesic effect since 1922. In addition to its analgesic effect, dipyrone has been shown to possess spasmolitic activity in various smooth muscle organs.

Leukocyte activation, oxidant stress and red blood cell properties after acute, exhausting exercise in rats.

Red blood cell (RBC) mechanical alterations and oxidative damage were investigated after an acute exhausting exercise in rats, together with the leukocyte activation. The groups formed as follows. Control (C) (n = 9), group I (n = 9) and group II (n = 7) from which blood samples were collected 15 minutes and 24 hours respectively, after acute exercise.

QSARs of some novel isosteric heterocyclics with antifungal activity.

QSAR analysis of a set of previously synthesized 2,5,6-trisubstituted benzoxazole, benzimidazole and 2-substituted oxazolo(4,5-b)pyridine derivatives tested for growth inhibitory activity against Candida albicans, was performed by using the computer-assisted multiple regression procedure. The activity contributions for either heterocyclic ring systems or substituent effects of these compounds were determined from the correlation equation and the predictions for the lead optimization were described. The resulting QSAR revealed that the oxazolo(4,5-b)pyridine ring system with the substitution of a benzyl moiety at position 2 was the most favourable structure among the heterocyclic nuclei.

The role of hepatobiliary scintigraphy in the evaluation of the protective effects of dimethylsulphoxide in ischaemic/reperfusion injury of liver.

Liver ischaemia may lead to parenchymal damage depending on the duration of the ischaemia. Dimethylsulphoxide (DMSO), a well-known radical oxygen scavenger, is a protective agent against ischaemia/reperfusion injury. In this study we aimed to investigate the role of hepatobiliary scintigraphy (HBSc) in detecting the protective effect of DMSO.

Application of 2,3,5-triphenyltetrazolium chloride staining to evaluate injury volume after controlled cortical impact brain injury: role of brain edema in evolution of injury volume.

A reliable method for measuring injury volume after traumatic brain injury (TBI) is of great importance when studying pharmacological protective agents in the field of head trauma research. Utilization of 2,3,5-triphenyltetrazolium chloride (TTC) has gained extensive acceptance in stroke research and has recently been applied to injury volume measurement in the lateral fluid percussion model. The present study was undertaken to apply this method to the controlled cortical impact (CCI) model and to study the role of brain edema.

Serum immunoglobulins in brain tumours and lumbar disc diseases.

Changes of serum immunoglobulin (Ig) concentrations may occur in both brain tumours and lumbar disc diseases (LDD). The purpose of this study was to investigate the changes of pre- and post-operative serum Ig levels in brain tumours and LDDs. Serum IgG, IgA and IgM levels were measured in 127 patients with brain tumour, 100 patients with LDD and 20 healthy subjects without neurological disease.

The effect of skin transplantation on tumor growth in mice.

Background: Skin allograft is an immunostimulant. Skin allograft activates effector arms of the immune system including the cytotoxic T lymphocytes, activated macrophages, and natural killer cells. These cells may be involved in the destruction of tumor cells.

Contribution of polyamine oxidase to brain injury after trauma.

Object: The possible role of the polyamine interconversion pathway on edema formation, traumatic injury volume, and tissue polyamine levels after traumatic brain injury (TBI) was studied using an inhibitor of the interconversion pathway enzyme, polyamine oxidase.

Methods: Experimental TBI was induced in Sprague-Dawley rats by using a controlled cortical impact device at a velocity of 3 m/second, resulting in a 2-mm deformation. Immediately after TBI was induced, 100 mg/kg of N1,N4-bis(2,3-butadienyl)-1,4-butanediamine 2HCl (MDL 72527) or saline was injected intraperitoneally.

Erythrocyte deformability in high-tension and normal tension glaucoma.

The exact cause of primary open angle glaucoma is still unknown. Intraocular pressure is a major factor but it is impossible to explain the whole mechanism of glaucomatous optic nerve damage with only increased intraocular pressure. Other factors play important roles in the development of glaucoma.

On-the-job training through follow-up visits to improve the quality of family planning services.

As part of a broader set of activities to strengthen family planning training and improve the quality of family planning services in Turkey, follow-up visits were performed at different family planning sites across the country in order to conduct on-the-job training. The objective of on-the-job training was to refresh and improve family planning counselling skills for all methods as well as to refresh and improve intrauterine device insertion/removal skills and also some determinants of quality care. It was also aimed at transferring up-to-date information to family planning practitioners, identifying frequently encountered problems and helping with solution approaches for problems both at the individual and programmatic levels.