About UNHCR. The Office of the United Nations High Commissioner for Refugees was established on December 14, 1950 by the United Nations General Assembly. The agency is mandated to lead and co-ordinate international action to protect refugees and resolve refugee problems worldwide.
Another common type of kidney stone is a uric acid stone. Red meat and shellfish have high concentrations of a natural chemical compound known as a purine. High purine intake leads to a higher production of uric acid which then accumulates as crystals in the joints, or as stones in the kidneys.
In addition, tissues are affected by exposure to chemicals in the environment such as chlorine and formaldehyde. Foods high in oxalate may cause or increase inflammation, pain, and burning, irritate tissues and mucous membranes, and contribute to the formation of calcium oxalate kidney stones.xalate is found in varying degrees primarily in plant foods including vegetables, fruits, grains, legumes, spices, herbs, and almost all nuts and seeds. When too much oxalate is absorbed into the bloodstream via the gut, it can team up with calcium to form sharp calcium-oxalate crystals.