Antidiuretic hormone stimulates water reabsorbtion by stimulating insertion of water channels or aquaporins into the membranes of kidney tubules. These channels transport solute-free water through tubular cells and back into blood, leading to a decrease in plasma osmolarity and an increase osmolarity of urine.
Seafood produces in most instances anaphylatic shock, but can trigger asthma attacks. The proteins in seafood is the cause and trigger of an attack or allergic reaction. Most generally, an attack will be severe. Those affected by the allergy should carry an ephinephrine pen, in case of accidental ingestion.
Sulfites are a common additive in many foods and drugs. Sulfites also occur naturally in some foods. Unfortunately, 5%-10% of people with asthma are also allergic to sulfites. An allergy is an increased sensitivity to a specific substance (called an allergen). The combination of asthma and sulfites can be dangerous.