One of the four bases in DNA that make up the letters ATGC. Guanine is the “G”. The others are adenine, cytosine, and thymine. Guanine always pairs with cytosine to form the base pair G-C (guanine-cytosine) in the DNA. The other base pair in the DNA is A-T (adenine-thymine). Each base pair forms a rung in the DNA ladder. Guanine is also one of the four bases in RNA.
- Guarding, abdominal
Tensing of the abdominal wall muscles to guard inflamed organs within the abdomen from the pain of pressure upon them. Abdominal guarding is detected when the abdomen is pressed and is an indication that inflammation of the inner abdominal (peritoneal) surface may be present due, for example, to appendicitis or diverticulitis. The tensed muscles of […]
- Guided imagery
An alternative medicine technique in which patients use their imagination to visualize improved health, or to ‘attack’ a disease, such as a tumor. Guided imagery may be utilized as complementary medicine in some oncology centers and other medical facilities.
- Guillain-Barre syndrome
Demyelination; Landry ascending paralysis; Polio.
A machine used during (and after) the French Revolution for beheading people condemned to death, by means of a heavy sharp blade that slid down within vertical guides. By extension, “guillotine” refers to any shearing machine or instrument (such as a paper cutter, a book trimmer, etc.) that is like a guillotine in its action. […]
- Guinea pig
1.Cavia porcellus, also known as Cavia cobaya, a plump rodent native to South America brought to Europe by the Spanish conquistadors. Often kept as pets and once very widely used a laboratory animal for research. 2.By extension, someone (or something) used as a subject of experimentation. In this sense, the term “guinea pig” may have […]