VALO'S ARCHIVE

Abstract The widely used non-steroidal anti-inflammatory drugs (NSAIDs) function mainly through inhibition of cyclooxygenases 1 and 2 (Cox-1 and Cox-2). Unlike Cox-1, Cox-2 is considered an inducible and pro-inflammatory enzyme. We previously reported that Cox-2 is upregulated in activated human B lymphocytes and using Cox-2 selective inhibitors that Cox-2 is required for optimal antibody synthesis. It is not known whether commonly used non-prescription and non-Cox-2 selective drugs also influence antibody synthesis. Herein, we tested a variety of Cox-1/Cox-2 non-selective NSAIDs, namely ibuprofen, tylenol, aspirin and naproxen and report that they blunt IgM and IgG synthesis in stimulated human peripheral blood mononuclear cells (PBMC). Ibuprofen had its most profound effects in inhibiting human PBMCs and purified B lymphocyte IgM and IgG synthesis when administered in the first few days after activation. As shown by viability assays, ibuprofen did not kill B cells. The implication...

You should wonder if a medication you often take for pain is safe. There are some misconceptions about NSAIDS (ibuprofen, naproxen, Motrin, Advil) and some truths. How much can or should you take and is it bad for your liver or kidneys? Every week I’m asked this question. How much? For the treatment of mild to moderate pain, minor fever, and acute or chronic inflammatory conditions 200 mg to 400 mg of ibuprofen will work, and is comparable to 650 mg of acetaminophen (Tylenol) or aspirin. Generally taken every 6 to 8 hours, the maximum dose of NSAIDs per day is 2400 mg which is 12 over-the-counter tablets. Liver-safe: Ibuprofen and other NSAIDS rarely affect the liver. Unlike acetaminophen (Tylenol) most NSAIDs are absorbed completely and have negligible first-pass hepatic (liver) metabolism. In other words, the way NSAIDS are metabolized makes liver toxicity (hepatotoxicity) very rare. Estimates are that 1 in 100,000 NSAID prescriptions result in acute liver injury. Generally ...

The prostaglandins are a group of lipids made at sites of tissue damage or infection that are involved in dealing with injury and illness. They control processes such as inflammation, blood flow, the formation of blood clots and the induction of labour. Mechanism of aspirin action. Mechanism of action of the drug aspirin. Aspirin works by preventing the production of prostaglandin: aspirin molecules (blue hexagons) enter the cell and chemically modify the cyclooxygenase enzyme (purple) to prevent prostaglandin synthesis. Alternative names for prostaglandins Prostaglandin D2; prostaglandin E2; prostaglandin F2; prostaglandin I2 (which is also known as prostacyclin); a closely related lipid called thromboxane. What are prostaglandins? Unlike most hormones, the prostaglandins are not secreted from a gland to be carried in the bloodstream and work on specific areas around the body. Instead, they are made by a chemical reaction at the site where they are needed and can be made ...