What is more damaging to vascular endothelial function: Diabetes, age, high BMI, or all of the above?
| Autor: | Yashvanth Nagarajamurthy Kuderu, Riya Lodha, Haneul Lee, Gurinder Bains, Lee Berk, Pooja Deshpande, Jong Eun Yim, Jerrold S. Petrofsky, Faris Alshammari, Diamond Nguyen, Sophia Rodrigues, Iman Akef Khowailed, Pooja Potnis |
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| Rok vydání: | 2013 |
| Předmět: |
Adult
Male medicine.medical_specialty Aging Endothelium Adolescent Body Mass Index Young Adult Clinical Research Internal medicine Diabetes mellitus Diabetes Mellitus Medicine Humans Young adult Aged Skin diabetes business.industry Vascular compromise Muscles cardiovascular nutritional and metabolic diseases General Medicine Blood flow Middle Aged medicine.disease Endocrinology medicine.anatomical_structure Ageing Circulatory system Cardiology Female Endothelium Vascular heat business Skin Temperature Body mass index |
| Zdroj: | Medical Science Monitor : International Medical Journal of Experimental and Clinical Research |
| ISSN: | 1643-3750 |
| Popis: | Background It is well established that there is a reduction in the skin blood flow (SBF) in response to heat with age and diabetes. While it is known that high BMI creates a stress on the cardiovascular system and increases the risk of all cause of morbidity and mortality, little is known of the effect of high BMI on SBF response to heat. Since diabetes is associated with age and a higher BMI, the interrelationship between age, BMI and SBF needs to be investigated to better understand the contribution diabetes alone has to endothelial impairment. Material/Methods This study examined the SBF to heat in young and old people with low and high BMI and people with diabetes with high BMI to determine the contribution these variables have on SBF. Subjects were ten young and older people with BMI 20 and ten subjects with diabetes with BMI >20. The SBF response, above the quadriceps, was determined during a 6 minutes exposure to heat at 44°C. Results Even in young people, SBF after the stress of heat exposure was reduced in subjects with a high BMI. The effect of BMI was greatest in young people and lowest in older people and people with diabetes; in people with diabetes, BMI was a more significant variable than diabetes in causing impairment of blood flow to heat. BMI, for example, was responsible for 49% of the reduction in blood flow after stress heat exposure (R=−0.7) while ageing only accounted for 16% of the blood flow reduction (R=−0.397). Conclusions These results would suggest the importance of keeping BMI low not only in people with diabetes to minimize further circulatory vascular damage, but also in young people to diminish long term circulatory vascular compromise. |
| Databáze: | OpenAIRE |
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