Estradiol and lipid levels in men with acute myocardial infarction

Background: The incidence of myocardial infarction (MI) is more common in men when compared with women and women after menopause are at high risk of MI. This gender difference in CVD risk might be because of the difference in the circulating estrogen levels in men and women. Dyslipidemia is also one of the major causes of MI. The present study was aimed to estimate the levels of serum estradiol and serum lipids in newly diagnosed male MI cases and to find out any correlation between these two.Methods: The study was conducted on 50 newly diagnosed MI admitted in Cardiology department Narayana general hospital and Medical College, Nellore. Only males were included in the study. Fifty age and sex-matched healthy individuals were selected as controls. Lipid levels are estimated by endpoint colorimetric assay (HUMANSTAR kit) and estradiol was estimated by Chemiluminance immune assay (CLIA).Results: Significantly raised levels of estradiol (p-value <0.0001) and low HDL cholesterol (p-value =0.0085) levels were noticed among the cases compared to controls. No significant correlation was observed between estradiol and lipoproteins (HDL and LDL).Conclusions: The results of the present study in acute MI compared to controls show hyper estrogenemia in Male MI cases, which may be the underlying cause for thrombosis in acute MI. Decreased levels of HDL cholesterol are observed in the MI cases which are known to increase the risk of Atherosclerosis. No significant correlation were noticed between Estradiol and HDL cholesterol in men with acute MI.

Alterations of serum high sensitive C reactive protein and lipid levels in newly diagnosed myocardial infarction subjects

Background: Acute Myocardial Infarction (AMI) is one of the major causes of mortality in the world. Atherosclerosis leading to AMI is the most common and severe clinical manifestation observed. Dyslipidemia is one of main traditional risk factor for MI, but in more than 50% of CHD events dyslipidemia was absent.  Atherosclerosis is considered as both a chronic inflammatory condition and a disorder of lipid metabolism. The present study was aimed to estimate the levels of serum lipids (total cholesterol, LDL cholesterol, HDL cholesterol) and hs-CRP an inflammatory marker in newly diagnosed AMI cases and to find out any correlation between these two.Methods: The study was conducted on 50 newly diagnosed myocardial infarction cases, admitted in Cardiology Department Narayana Medical College, Nellore. Both the sexes were included. Fifty age and sex matched healthy individuals were selected as controls. Lipid levels are estimated by end point colorimetric assay (HUMANSTAR kit) and hs-CRP was estimated by immunofluorescence technique (Boditechkit).Results: Significant raised levels of hs-CRP (p value <0.0001) and low HDL cholesterol (p value =0.0085) levels among the cases was noticed. A significant positive correlation was observed between LDL cholesterol and hsCRP (r=0.109, p=0.040). A non-significant positive correlation between hsCRP and HDL cholesterol  (r=0.291, p=0.453) was observed.Conclusions: The results of the study implicate the role of inflammatory component in causing atherosclerosis or coronary artery disease rather than dyslipidaemias alone to be attributed for atherogenesis. Concomitantly HDL cholesterol levels were found to be low in cases that results from the inflammatory component in atherogenesis.

Correlation Between Lipid Peroxidation Product- Malondialdehyde (MDA) and Reduced Glutathione (GSH) in Preeclampsia.

Pregnancy is a stressful condition in which many physiological and metabolic functions are altered to considerable extent and hypertension is the most commonest problem encountered during pregnancy, complicating 5-10% of pregnancies. Recent reports suggest that free radical induced endothelial damage as an important factor in the pathogenesis of preeclampsia. Such cell injury might in turn is counteracted by the action of several in vivo antioxidants. But because of increased lipid peroxidation and increased demand of antioxidants , increased oxidative stress is suspected. The present study was undertaken to determine serum malondialdehyde (MDA) and RBC reduced glutathione (GSH) levels in clinically diagnosed preeclamptic women (n=30) and compared with that of normotensive pregnant women and to find out any association between the two parameters. Serum MDA levels were significantly elevated (p value<0.000) and RBC reduced GSH levels were significantly decreased ( p value <0.000) compared to that of normotensive pregnant women. A statistically significant negative correlation was observed between serum MDA and RBC reduced GSH (p value <0.003) in preeclamptic cases.

Alterations of Serum Uric Acid Concetrations in Preeclampsia.

Hypertensive disorders during pregnancy increase maternal and fetal risk. Preeclampsia is characterised by hypertension and proteinuria. Increased uric acid is a key clinical feature of preeclampsia; higher levels correlate with significant maternal and fetal morbidity and mortality. The present study was undertaken to estimate serum uric acid , the end product of purine catabolism, in clinically diagnosed preeclamptic women (n=30) and the values were compared with that of normotensive pregnant women (n=30) ,aged 18-30yrs. All of them were in their third trimester and primigravida. Serum uric acid levels were measured by spectrophotometry. We observed that serum uric acid levels were increased significantly when compared with that of normotensive pregnant women (p value < 0.000).

Mineral status in thyroid disorders (hypo & hyper).

Thyroid hormones influences the metabolism of all the substrates including minerals. A patient with thyroid dysfunction may also manifests the symptoms that are consequents upon the altered minerals levels. The study shows that, low levels of Ca+ in hypothyroid cases, increased bone turnover in hyper thyroidism increases the Ca++ level decreased bone turnover. In hypothyroidism low tubular re absorption of Po4 - by affecting GFR, high clearance of Po4 -. In hyperthyroidism increased tubular re absorption of Po4 - affecting GFR, low clearance of Po4-. In hypothyroidism rapid blood flow will be leading to rapid clearance of Mg2+ & Zn+ from kidney. So over tubular excretion of Mg2+ & Zn+ will be low levels in plasma. In hyperthyroidism decreased blood flow will be leading to low clearance of Mg2+ & Zn+ from kidney. So low tubular excretion of Mg2+ & Zn+ will be high levels in plasma Materials & Methods The study was conducted over a period of six months. In this study 30 subjects hypo & 30 hyperthyroidism with euthyroidism were selected. Both males and females were included. Blood sample were collected for estimation of TSH, FT3,FT4, serum Ca, serum Po4 -, serum Mg2+ & serum Zn+. Results : In hypothyroid patients the serum levels of minerals Ca+, Zn+ , Mg2+ (p<0.001) were significantly decreased and PO4 (p<0.001) levels were significantly increased compared to controls. In hyperthyroid patients the serum levels of minerals Ca+, Zn+ , Mg2+ (p<0.001) were significantly increased and PO4 (p<0.001) levels were significantly decreased compared to controls. Conclusion : Mineral status is observed in all the patients Ca+ levels are low because high bone turnover prominent phosphorus levels positive influences on paratharmone and calcitonine, Zn+ & Mg2+ levels reflects the influences on GFR and decreased clearance of these minerals.

Study on microalbuminuria and oxidativestress in diabetics.

Background Diabetic nephropathy accounts for about 40% of ESRD. In early stages of diabetic nephropathy there are no clinical signs & symptoms of glomerular changes. The earliest indication of nephropathy is microalbuminuria1(American diabetes Association). Advanced Glycation Endproducts in diabetes favorers the Oxidative stress which is implicated in etiology of human diseases. The present study was undertaken to asses the role of oxidative stress in causing diabetic nephropathy2 (Josephine M Forbe etal). Materials & Methods 50 cases of diagnosed diabetic subjects were selected for the present study. Aged 30 – 60 years , both the males & females were included. Blood samples were collected in fluoride test tubes for estimation of FBS & PPBS. EDTA & heparin blood samples for glutathione & glutathione peroxidase respectively. A fasting urine sample was collected in a sterile container for microalbumin estimation. Results Significant increase in the levels of urine microalbumin (P<0.01) & Glutathione peroxidase (P<0.002) were observed in diabetics compare to healthy controls. Glutathione values were decreased (P<0.00). Conclusion Lowered glutathione values and elevated glutathione peroxidase values were consistently observed in all the cases indicating the association of oxidative stress in all diabetic patients. Microalbuminuria is observed in all the patients irrespective of the duration of the illness indicating sub clinical damage of microvasculature probably due to oxidative stress.