Since not all people with genetic predisposition for lupus contract the condition, it is important to evaluate what environmental factors are indicated in disease prevention. While a few genes have been studied as factors for lupus, more may be involved that have not been identified.ince not all people with genetic predisposition for lupus contract the condition, it is important to evaluate what environmental factors are indicated in disease prevention. While a few genes have been studied as factors for lupus, more may be involved that have not been identified.
Ducks and turkeys with a niacin deficiency show a severe bowing of the legs and an enlargement of the hock joint. The main difference between the leg seen in niacin deficiency and perosis as seen in manganese and choline deficiency is that with niacin deficiency the Achilles tendon seldom slips from its condyles.n the niacin-deficient hen, weight loss, reduced egg production, and a marked decrease in hatchability can result. Turkeys, ducks, pheasants, and goslings are much more severely affected by niacin deficiency than are chickens.
Symptoms of thiamine deficiency, or a lack of vitamin B1, include fatigue, irritability, depression and stomach problems.Thiamine deficiency is not common. However, people with Crohn's disease or anorexia, those undergoing kidney dialysis and people with alcoholism are at risk of having low thiamine levels. deficiency of thiamine (vitamin B1) usually results in fatigue, depression, pins and needles sensations or numbness in the legs, and constipation.