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ptosis

Ptosis is a drooping of the upper eyelid that can be present from birth or develop later from nerve, muscle, or structural causes.

pyridoxine hydrochloride

Pyridoxine hydrochloride is a stable salt form of vitamin B6, converted in the body into an active coenzyme needed for amino acid metabolism.

rabies

Rabies is a viral infection transmitted through the saliva of an infected mammal, almost always fatal once neurological symptoms appear.

restless legs syndrome

The hallmark of restless legs syndrome is an urge to move the legs that relieves an uncomfortable sensation, worsening at rest and in the evening.

Seneca Valley virus-001

A virus being studied in the treatment of neuroendocrine tumors and other types of cancer.

serotonin

The brain and gut supplies are separate, because the molecule cannot cross from blood into brain tissue, and each pool works on its own.

somatic

Somatic refers to the physical body, distinguishing bodily structures and symptoms from mental, emotional, or reproductive-cell processes.

spinal tap

A spinal tap withdraws cerebrospinal fluid from the lower back using a thin needle, either to test the fluid or to deliver medication.

tachypnea

/ TA-kip-NEE-uh /

Tachypnea is a breathing rate that is abnormally high for a person’s age and clinical circumstances.

tacrolimus

Tacrolimus suppresses the immune system by blocking a step in T cell activation, and is used mainly to prevent rejection after organ transplantation.

Tamiflu

Timing dominates this one: it stops new virus particles escaping infected cells, so it does most good early, before the infection has peaked.

thiamine

Thiamine, or vitamin B1, helps enzymes convert dietary sugars into usable energy, and prolonged deficiency produces the disorder beriberi.

trabecular cancer

A rare type of cancer that forms on or just beneath the skin, usually in parts of the body that have been exposed to the sun.