A Baker's cyst is a swelling in the space behind the knee. Baker's cysts most commonly affect women over the age of 40. Symptoms of a Baker's cyst include joint locking, knee, and calf pain. Baker's cyst often resolves without medication.
The phosphatidylethanolamine N-methyltransferase (PEMT) 5465GâA (rs7946) genotype interacted (Pâ©½0.007) with the plasma betaine to choline ratio to modulate indicators of metabolic stress with stronger inverse associations observed among overweight men with the PEMT 5465GG genotype.
1 Plasma, about 55% of the blood volume, consists of water, ions, various plasma proteins, nutrients, waste products, respiratory gases, and hormones, while the cellular elements include red and white blood cells and platelets. 2  Blood plasma is about 90% water.