What Leptin Is. Leptin is a hormone secreted by adipose tissue (fat cells) that tells you youâre full. (Its opposite hormone is called ghrelin, which tells you youâre hungry. You can remember this because the word ghrelin sounds like a stomach growling.) Because leptin is secreted by fat cells, you produce more leptin as your weight increases.
Epinephrine is the most effective treatment for anaphylaxis, and the shot should be given right away (usually in the thigh). If youâve had an anaphylaxis reaction before, you should carry at least two doses of epinephrine with you at all times.
Although the symptoms of an anaphylactic reaction usually occur within seconds to minutes after exposure to a trigger, some reactions can occur up to two hours after the exposure. Possible symptoms and signs of an anaphylactic reaction include: Skin symptoms: itching, flushing, hives, and swelling (angioedema) Gastrointestinal symptoms: abdominal pain, abdominal cramping, nausea, vomiting, and diarrhea. Respiratory symptoms: nasal congestion, runny nose, cough, shortness of breath, chest tightness, and wheezing. Cardiovascular symptoms: dizziness, lightheadedness, fast heart rate (tachycardia), and low blood pressure. Additionally, those affected often report a feeling of impending doom..