Purines are the larger of the two types of bases found in DNA. Cytosine and thymine are pyrimidines. The deoxyribose sugar of the DNA backbone has 5 carbons and 3 oxygens. The carbon atoms are numbered 1', 2', 3', 4', and 5' to distinguish from the numbering of the atoms of the purine and pyrmidine rings.
Be it a cola, non-cola, diet soda or other sugar-sweetened carbonated beverage, carbonated beverages can increase your risk of serious health issues. Soda, especially colas, contains high levels of phosphoric acid, which is closely linked with the development of kidney stones and other renal problems.
Diet Soda and Kidneys: Study Results. When the researchers compared kidney function of the women in 1989 and 2000, they found that 11.4% or 372 women had a kidney function decline of 30% or more. When they looked at the diet information, they found that the 30% decline in kidney function was associated with drinking two or more artificially sweetened sodas a day.