Role of the cholesterol of platelet membranes in disorders of their structuro-functional condition in angina pectoris patients

A study of 80 anginal patients showed their platelet molar cholesterol/phospholipid ratios, platelet membrane microviscosity, membrane release of calcium and fatty acids, and platelet aggregation capacity to be elevated. It is assumed that excessive platelet cholesterol has a significant effect on platelet aggregation, that is mediated by the intraplatelet processes examined, in anginal patients.     

Atypically located pericardial cysts

Pericardial cysts are uncommon benign abnormalities and are most often found in either cardiophrenic angle. We present the cases of 3 patients with a cyst in the mediastinum and review the literature. Pathological examination confirmed the diagnosis of pericardial cyst. Clinicians should include pericardial cyst in the differential diagnosis of mediastinal masses.     

Examining prevalence of urinary incontinence and risk factors in women in third postpartum month

Are pregnancy and birth‐related parameters important risk factors in the development of urinary incontinence (UI)? The aim of this study is to examine the prevalence of UI and associated risk factors in Turkish women in the third postpartum month. Incontinence after childbirth is a common problem. A cross‐sectional study that included 370 women in third postpartum month in Çanakkale is presented in this paper. Wagner's quality of life scale questionnaire exploring the risk factors for UI was used as the principle data collection tool. All women gave consent prior to inclusion in the study. Chi‐square, t test, Mann‐Whitney U test and Binary logistic regression were used for comparison. The prevalence of self‐reported postpartum UI was 35.9%. In this study; age, educational level, parity, number of normal birth, nocturia and constipation were determined to be the associated risk factors for postpartum UI in univariate analysis. When examining these risk factors by using logistic regression, it was found that the number of birth being 2 increased UI 2.7 times (P = 0.002, 95% CI:1.434‐5.324), the number of birth being 3 or more increased UI 20.3 times (P = 0.001, 95% CI:7.130‐58.332) and nocturia being 3 times and more increased UI 2.6 times (P = 0.041, 95% CI:1.042‐6.790). Pregnancy and birth‐related parameters are important risk factors in development of UI. It would be useful to increase the awareness in women in pregnancy and the postpartum period, by providing health training and consultancy services about UI protection and the reduction of risk factors.     

Scimitar Syndrome and Azygos Continuation of the Inferior Vena Cava Diagnosed in an Adult—An Unusual Association

Anormal drainage of the pulmonary veins into the inferior vena cava is known as scimitar syndrome. Scimitar syndrome often presents during infancy and rarely during adulthood, and the adult patients are mostly asymptomatic. It is usually in association with dextrocardia, hypoplasia of right lung, and congenital heart defects. However, interruption of inferior vena cava with azygous continuation is rarely associated with this syndrome.     

Ischemic heart disease in nuclear workers first employed at the Mayak PA in 1948-1972

Following an earlier study of incidence and mortality of ischemic heart disease (IHD) published in 2010, a second analysis has been conducted based on an extended cohort and five additional years of follow-up. The cohort includes 18,763 workers, of whom 25% were females, first employed at the Mayak PA in 1948-1972 and followed up to the end of 2005. Some of these workers were exposed to external gamma rays only, and others were exposed to a mixture of external gamma-rays and internal alpha-particle radiation. A total of 6,134 cases and 2,629 deaths from IHD were identified in the study cohort. A statistically significant increasing trend was found with total external gamma-ray dose in IHD incidence (ERR/Gy 0.099; 95% CI: 0.045-0.153) after adjusting for non-radiation factors. This value reduced slightly when adjusting for internal liver dose. There was no statistically significant increase trend for internal liver dose in IHD incidence. These findings were consistent with an earlier study. New findings in IHD incidence revealed a statistically significant decrease in IHD incidence among workers exposed to external gamma-rays doses of 0.2-0.5 Gy in relation to the external doses below 0.2 Gy. This decreased risk is heavily influenced by female workers. This finding has never been reported in other studies, and the results should be treated with caution. The findings for IHD mortality are similar to those results in the earlier analysis; there was no statistically significant trend with external gamma-ray dose or for internal liver dose after adjustment for external dose. The risk estimates obtained from these analyses of IHD incidence and mortality in relation to external gamma-rays in the cohort of Mayak workers are generally compatible with those from other large occupational radiation worker studies and the Japanese atomic bomb survivors.     

Systematic Review and Meta-analysis of Circulatory Disease from Exposure to Low-Level Ionizing Radiation and Estimates of Potential Population Mortality Risks

Background: Although high doses of ionizing radiation have long been linked to circulatory disease, evidence for an association at lower exposures remains controversial. However, recent analyses suggest excess relative risks at occupational exposure levels.Objectives: We performed a systematic review and meta-analysis to summarize information on circulatory disease risks associated with moderate- and low-level whole-body ionizing radiation exposures.Methods: We conducted PubMed/ISI Thomson searches of peer-reviewed papers published since 1990 using the terms “radiation” AND “heart” AND “disease,” OR “radiation” AND “stroke,” OR “radiation” AND “circulatory” AND “disease.” Radiation exposures had to be whole-body, with a cumulative mean dose of < 0.5 Sv, or at a low dose rate (< 10 mSv/day). We estimated population risks of circulatory disease from low-level radiation exposure using excess relative risk estimates from this meta-analysis and current mortality rates for nine major developed countries.Results: Estimated excess population risks for all circulatory diseases combined ranged from 2.5%/Sv [95% confidence interval (CI): 0.8, 4.2] for France to 8.5%/Sv (95% CI: 4.0, 13.0) for Russia.Conclusions: Our review supports an association between circulatory disease mortality and low and moderate doses of ionizing radiation. Our analysis was limited by heterogeneity among studies (particularly for noncardiac end points), the possibility of uncontrolled confounding in some occupational groups by lifestyle factors, and higher dose groups (> 0.5 Sv) generally driving the observed trends. If confirmed, our findings suggest that overall radiation-related mortality is about twice that currently estimated based on estimates for cancer end points alone (which range from 4.2% to 5.6%/Sv for these populations).     

Knowledge and Opinions of Turkish University Students About Contraceptive Methods and Emergency Contraception

This study was carried out to determine the knowledge and opinions of university students about contraceptive methods and emergency contraception (EC). The study comprised 1,689 students who volunteered to participate in the study and were selected from among students studying in two different universities in the 2007–2008 semester. Data were collected on a form that was developed by researchers. The chi-square test was used for the statistical analysis of the data. Oral contraceptive pills (93%), condoms (91.3%), IUDs (Intra Uterine Device) (76.6%) and the withdrawal method (56.8%) were in the lead amongst the contraceptive methods on which students had information. Twenty-nine percent of the students had heard of the concept of EC and 79.8% of those defined the concept accurately. Out of the total student sample, 38.7% stated that they had no information about the methods used for the purpose of EC. 89.6% of the students were of the opinion that every individual should have information about contraceptive methods. Turkish university students were found to be aware of many contraceptive methods; in addition, the opinions of the young university students relating to family planning were positive.     

Plasma lipids oxidation in patients with occlusive atherosclerosis of lower extremities and ischemic heart disease

Dynamics of lipoprotein oxidation in blood plasma was studied by Cu-induced plasma oxidation in 114 patients with atherosclerosis of lower extremities of various severity with and without ischemic heart disease. Preparedness of plasma lipoproteins to oxidation in patients was higher than in healthy subjects. Degree of oxidizeability increased with increase of severity and extent of atherosclerosis and was highest in patients with atherosclerosis of lower extremities and ischemic heart disease. There were no significant differences between groups of patients with various severity and extent of atherosclerosis in levels of total cholesterol and triglycerides as well as in other parameters of lipid spectrum. Correlation analysis revealed no relationship between age of patients and degree of plasma oxidizeability.