Serum total sialic acid in differential diagnostics of jaundice caused by malignant and nonmalignant diseases: a ROC curve analysis

The relationship between serum sialic acid and high-sensitivity C-reactive protein with prehypertension

Background

The aim of our study was to evaluate the serum concentration of sialic acid (SA) and high-sensitivity C-reactive protein (hs-CRP) in prehypertensive patients and the possible correlations between these 2 factors with blood pressure in such patients.

Material/Methods

We studied 61 prehypertensive patients, 70 hypertensive patients, and 50 controls with normal blood pressure. Lipid profile, hs-CRP, SA, and body mass index (BMI) were estimated in all groups. Associations between SA and hs-CRP and blood pressure were analyzed using multiple linear regressions.

Results

SA and hs-CRP levels were higher in the prehypertension group than that in the control group and were lower than that in the hypertension group. Multiple linear regression demonstrated that fasting glucose, BMI, SA, and hs-CRP correlated with systolic blood pressure and that low-density lipoprotein, BMI, SA, and hs-CRP correlated independently with diastolic pressure (P<0.05).

Conclusions

Our findings suggest that in prehypertension, there is an association between serum SA and hs-CRP levels and blood pressure.

Protective potential of Royal Jelly against carbon tetrachloride induced-toxicity and changes in the serum sialic acid levels

Royal Jelly (RJ) is used in the Turkish folk medicine for the treatment of number of disorders. The present study describes the hepatoprotective and antioxidant activities of the RJ against carbon tetrachloride (CCl(4))-induced acute liver damage. Sprague-Dawley rats were used for the experiment. CCl(4) (0.8 ml/kg; s.c.) and RJ (50, 100, 200mg/kg; orally) were given every other day, for 20 days. Malondialdehyde, reduced glutathione in whole blood and tissues; ceruloplasmin, sialic acid, ascorbic acid, retinol, β-carotene and liver enzymes levels in serum were measured. Additionally, histopathological alterations in the liver were examined. RJ exerted the significant protective effect on liver damage as well as on oxidative stress induced by CCl(4), resulting in reduced lipid peroxidation and improved endogenous antioxidant defence systems. It also reduced the elevated levels of liver enzymes. Histopathological study further confirmed the hepatoprotective effect of RJ, when compared with the CCl(4) treated control groups. In conclusion, present study reveals biological evidence that supports the use of RJ in the treatment of chemical-induced hepatotoxicity.