Family Risk of Metabolic Disorder; A Parameter for Timely Screening of Vascular Endothelial Health | Chapter 12 | New Insights into Disease and Pathogen Research Vol. 1
Aim:
To study the correlation of vascular endothelial health with family risk of
metabolic disorders, in healthy overweight, obese and non obese subjects.
Study
Design: A case-control (pilot) study.
Place
and Duration of Study: The study was conducted in
Cardiovascular Physiology lab, Department of Physiology, K.G.M.U
Methods:
Cases and controls comprised from
January 2009 to February 2010. of 30
overweight / obese healthy subjects (BMI
>= 25 kg/m2 and/or WHR (female>0.85; male>1) and 30 non-obese healthy
subjects respectively (BMI< 25 kg/m2 and/or WHR (female<0.85; male<1)
excluding subjects with secondary cause of abnormal blood flow. Vascular
endothelial health was assessed via reactive hyperemic response measured via
impedance plethysmography in the subject’s forearm. Fasting plasma glucose and
serum lipid profile was also done.
Results:
On comparison of biochemical variables, lipid derangement was recorded in both
the groups. Significant difference in VLDL (control 21.84±9.68, case
29.01±16.83) (p=0.048) and TG (control 101.22±-43.33; case145.21±84.02)
(p=0.013), could be seen. VLDL & TG was deranged in 15 (6 cases + 9
controls) (P=0.371) and 14 (5 cases + 9 controls) (P=0.222) subjects
respectively with no inter-group significant statistical difference.
Inter-group reactive hyperemia at 1, 2, 3, 5, 7, 9 min post occlusion time
showed no significant difference. Peak hyperemic response was seen at 2 minutes
in both the groups. Though independent family history in first degree relatives
of diabetes, coronary artery disease and/or hypertension showed a significant
association with % RH at 2 min. (P=0.049), yet in group wise exploration, no
significant association was seen.
Conclusion:
Adverse anthropometry is universally not associated with deranged lipid profile
and vice versa. Raised RH response associated with positive family risk could
be either due to hyperinsulinemia and/or some yet undeciphered cause but not
solely as add-on sequelae of deranged anthropometry (BMI & WHR). In the
light of our findings, we conclude that what seems as a favourable response
i.e. a raised hyperemic response in subjects with a positive family history of
risk factors, may be last ditch escape response before the vascular system
succumbs to the inflammatory insult. Some yet undeciphered causes could thus be
suspected of an adverse outcome and thus accordingly timely modified by
lifestyle modifications or pharmacological interventions.
Author(s) Details
Preeti Kanawjia
Department of Physiology,
GSVM Medical College, Kanpur, India.
Dr. Sunita Tiwari
Department of Physiology,
King George's Medical University (KGMU), Lucknow, India.
Dr Manish Bajpai
Department of Physiology,
King George's Medical University (KGMU), Lucknow, India.
View Volume: https://doi.org/10.9734/bpi/nidpr/v1
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