The drinking water (potable water) is that water which is safe for human consumption .The analysis of drinking water determines the identification of bacteria and the effect of some other metals on them. The work was carried out in Sri Ganganagar zone. The samples were collected from 15 to 35 km. area of Sri Ganganagar,Rajasthan. The work was completed in the department of microbiology of Tantia University, Sri Ganganagar. Isolation and cultivation of Escherichia coli (E.coli) and Staphylococcus aureus(S.aureus) was done by using varies isolation techniques like serial dilution method, spreading etc. and applied different media like nutrient agar, Eosin Methylene Blue , MacConkey agar and special media and various biochemical reactions. Therefore, S.aureus and E.coli strains were selected for this antibacterial study. Both gram positive and gram negative microorganisms were used for the test and Al, Zn, Mn, and Fe metals were selected for study of antimicrobial effects. Prepared the cultured plate of E.coli and S.aureus and add the metals in the middle of the Petri plate and after overnight incubation obsevered the effect of metals. The result shown that Mn has no antimicrobial effect but Al, Fe and Zn has antimicrobial properties. Fe shown strong effect as compared to Al and Zn. The object of this study to investigate the antimicrobial effect of metals such as Mn, Al, Zn and Fe on drinking water bacteria such as E.coli and S.aureus. Antimicrobial properties of metals will be use for purification of drinking water and remove the bacterial contamination from the drinking water with the help of metals.

Many studies have proven an inverse correlation between HDL rate and the risk of evolving toward an ischemic heart disease. This study’s goal is to spot patients with significantly low HDL to attempt finding new eventual elements characterizing this kind of situation, or at least, affirm the stability of those already acquired. It is a transversal study conducted in the biochemistry and toxicology department at the moulay Ismail Military hospital in Meknes over a one year period (June 2014 – June 2015). The retained patients were ones with an HDL lower than 0.20 g/l. Their medical files were taken from the appropriate services to collect on a record operating the interesting data for the study. 50 patients were taken in. Their average age was 51, 7 year old and the sex ration M/W was 1.4. The infections disease followed half of the cases, malaria being the majority with 32% of cases infections. 28% of cases were patients with cancer, 10% patients with diabetes. 6% were psychiatric diseases and 6% were malnutrition associated with inflammation cases. Hypertriglyceridemia was associated to hypoHDLemia in 46% of cases. HypoHDLemia can be transitory with acute infections and disappear along with it. Nevertheless, it can persist with chronical infections such as viral hepatitis, cancer, diabetes and psychiatric diseases, hence the value of a regular control of the lipid profile.