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Artículo | IMSEAR | ID: sea-194283

RESUMEN

Background: Atherosclerosis has been described as a lipid driven inflammatory disorder of the arterial wall. Smoking is one of the most common modifiable risk factors for atherosclerosis and is the major epidemiological factor in increasing morbidity and mortality of chronic heart diseases (CHD). The objectives of this study were based on to estimate the status of lipid profile in both smokers and non-smokers and compare with each other, to predict the 10 years risk of cardiovascular risk based on Framingham score in smokers and non-smokers.Methods: This retrospective, case-control study was conducted among 50 smokers (cases) and 50 normal individuals (controls) attending to the department of medicine during the period between December 2016 and May 2018. The socio-demographic data and clinical history was obtained using a semi-structured questionnaire and then patients were subjected to blood investigations including estimation of lipid profile by CHOD/PAP method.Results: The mean age of the study participants was 34.7±2.9 years. The duration of smoking among the smokers was 5.4±2.9 years on an average. There was a significant increase in serum cholesterol levels (245.6±39.8 versus 155.8±15.2 mg/dl), serum triglycerides (217.3±42.2mg/dl versus 127.4±10.6), LDL (171.1±35.2 versus 85.7±15.1 mg/dl) and VLDL (43.5±10.5 versus 15.3±5.5mg/dl) among the smokers versus non-smokers. There was a significant (p<0.001) decrease in HDL levels among the smokers (30.8±3.4 mg/dl) when compared with the non-smokers (44.8±5.3 mg/dl). There was a highly significant difference between Framingham risk scores of smokers and non-smokers.Conclusions: The study established that the lipid profile was deranged towards atherogenesis among the smokers when compared to the non-smokers which was reflected in the significant increase in risk as calculated by Framingham risk score.

2.
Journal of the Korean Ophthalmological Society ; : 1568-1573, 1999.
Artículo en Coreano | WPRIM | ID: wpr-192795

RESUMEN

The effect of hyperoxia and smoking on retinal and optic nerve head microcirculation, and O2 reactivity in smokers and non-smokers were investigated using HRF(Heidelberg Retinal Flowmeter). 10 eyes of 10 young healthy non-smoking volunteers and 10 eyes of 10 young healthy smoking volunteers were investigated. Blood flow measurements were performed using HRF before and after 100% oxygen was applied to the subjects. In the non-smoking group, retinal flow was reduced by 33%, retinal volume by 24%, optic nerve head flow by 16% and optic nerve head volume by 18%. In the smoking group, retinal flow was reduced by 19%, retinal volume by 16%, optic nerve head flow by 16% and optic nerve head volume by 16%. The difference of O 2 reactivity between smokers and non-smokers was statistically significant in the retinal blood flow and volume, but not significant in the optic nerve head flow and volume. These results indicate that hyperoxia leads to a decrease in capillary blood flow of the retina and optic nerve head secondary to vasoconstriction, and that smoking decreases O2 reactivity in retinal microcirculation. The findings might be based on the long term effects of nicotine on the vascular system in smokers.


Asunto(s)
Capilares , Hiperoxia , Microcirculación , Nicotina , Disco Óptico , Nervio Óptico , Oxígeno , Retina , Retinaldehído , Humo , Fumar , Vasoconstricción , Voluntarios
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