There are several species of tapeworms, and each uses a different intermediate host to infect a pet. Fleas, small rodents, rabbits or larger animals such as deer and sheep are the hosts that transmit the worms to dogs or cats. Pets infected with tapeworms do not normally lose weight or display symptoms of illness.
The Glut1 protein is also found in red blood cells (erythrocytes). Testing is available on a clinical basis to assess erythrocyte glucose transporter activity, which is reduced by approximately 50 percent in individuals with Glut1 deficiency syndrome.
Human growth hormone: Up close and personal. Growth hormone (GH) is a small protein that is made by the pituitary gland and secreted into the bloodstream. GH production is controlled by a complex set of hormones produced in the hypothalamus of the brain and in the intestinal tract and pancreas. The pituitary puts out GH in bursts; levels rise following exercise, trauma, and sleep.