CYB5R3 the subsequent disease manifestation have been described. The disease manifests as the accumulation of oxidized Fe+3 in humans. Type I recessive congenital methemoglobinemia (RCM) is characterized by a deficiency of the soluble isoform and manifests as the cyanosis of skin and mucous membranes. In type II, the defect affects both isoforms and thus affects more general tissues such as red blood cells, leukocytes, and all body tissues. This type is associated with mental deficiency and other neurologic symptoms, which may be because the cytochrome b5 system plays a crucial role in the desaturation of fatty acids in the body. One
Hypoadrenocorticism in dogs body attacks and kill its own tissue ("immune mediated destruction"). Other cases are caused by various disease processes, including failure of the pituitary gland to secrete ACTH, the hormone which stimulates the adrenal production of cortisol. Hypoadrenocorticism is more frequent in dogs than in humans; in fact, it may occur one hundred times more often in the canine population. It mostly affects young to middle-aged female dogs, as the average age at diagnosis being four years old (although it has been found in puppies and dogs up to twelve years old). About seventy percent of dogs that are diagnosed with