How do the elements in Groups 5A, 6A, & 7A form ions? They gain electrons to achieve noble gas configuration and form anions with a negative charge. What is the formula unit of Aluminum oxide?
Distal anhidrosis, although often subclinical, is detectable by clinical sudomotor testing in many patients with peripheral neuropathy. Diabetes mellitus, the most common cause of autonomic neuropathy in the developed world, typically impairs thermoregulatory sweating in a stocking and glove distribution. As the neuropathy progresses, asymmetric truncal anhidrosis or global anhidrosis may develop.
Sideroblastic anemia can be caused by hereditary factors, acquired as part of an underlying condition or exposure to drugs or toxins, or the cause may be unknown (idiopathic). Hereditary causes of sideroblastic anemia include: 1  Mutations in the ALAS2, ABCB7, SCL19A2, GLRX5, and PSU1 genes. 2  Pearson syndrome. 3  Wolfram or DIDMOAD syndrome. 4  Mitochondrial SLC25A38. 5  Erythropoietic protoporphyria.