(Greek: bear or carry; support; go)
This unit is directly related to the apheresis word family.
There are various types of pheresis.
- In leukapheresis, the leukocytes (white blood cells) are removed.
- In plateletpheresis, the thrombocytes (blood platelets) are removed.
- In plasmapheresis, the liquid part of the blood (the plasma) is removed.
Entomologists know that moths use pheromones to locate their mates. Yet when these chemical odors are widely dispersed in a windy, turbulent atmosphere, the insects still manage to fly in the right direction over hundreds of meters, or feet, with only random puffs of their mates' pheromones spaced tens of seconds apart to guide them.
Males must find the outer envelope of the plumes of pheromones and then head upwind.to find the females.
Photopheresis is at present a standard therapy for advanced cutaneous T-cell lymphoma. It shows promise in the treatment of autoimmune diseases.