Herbicide
A chemical pesticide designed to control or destroy plants, weeds, or grasses. Herbicides tend to have wide-ranging effects on non-target species (other than those the pesticide is meant to control or kill).
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- Herbicide chemical 2,4-DCP
A poisonous chemical used to produce a herbicide. 2,4-DCP (short for 2,4-dichlorophenol) is employed in the manufacture of the herbicide 2,4-D (which is short for 2,4-dichloropheoxyacetic acid). 2,4-DCP is so highly toxic that even a small amount on the skin can be lethal. Five chemical-plant workers died from 2,4-DCP exposure in the US from 1980 […]
- Hereditary amyloidosis
A familial (inherited) disorder in which protein deposits (amyloid) accumulate in one or more organ systems in the body. Hereditary amyloidosis is a relatively uncommon cause of amyloidosis. The more common forms of amyloidosis are primary an secondary amyloidosis. However, hereditary amyloidosis is found worldwide. It occurs in families of nearly every ethnic background. The […]
- Hereditary angioedema
A genetic form of angioedema. (Angioedema is also referred to as Quinke’s disease.) Persons with it are born lacking an inhibitor protein (called C1 esterase inhibitor) that normally prevents activation of a cascade of proteins leading to the swelling of angioedema. Patients can develop recurrent attacks of swollen tissues, pain in the abdomen, and swelling […]
- Hereditary angioneurotic edema
A genetic form of angioedema due to C1-inhibitor deficiency (HAE-C1-INH). A rare, autosomal-dominant disease, HAE-C1-INH is characterized by recurrent attacks of marked, diffuse, nonpitting and nonpruritic skin swellings, painful abdominal attacks, and laryngeal edema. The extremities and the gastrointestinal tract are most commonly affected. Swelling of the upper respiratory mucosa poses the greatest risk because […]
- Hereditary atransferrinemia
A genetic disorder in which there is absence of transferrin, a plasma protein that transports iron through the blood. Atransferrinemia is characterized by anemia and hemosiderosis (iron deposition) in the heart and liver. The iron damage to the heart can lead to heart failure. The anemia is typically microcytic and hypochromic (the red blood cells […]