Biomaterial Database

Blockade by met-enkephalin antiserum of analgesia induced by substance P in mice. 1982

J R Naranjo, and F Sanchez-Franco, and J Del Rio

In the tail-flick test in mice, the intraventricular administration of Substance P (10-5,000 ng/mouse) produced a naloxone-reversible analgesic effect of rapid onset and long duration. The dose-response curve was bell-shaped, the analgesic effect being smaller after the largest doses. The analgesia was blocked by concomitant intraventricular administration of the antibody against met-enkephalin but not by the antibody against beta-endorphin. In the hot plate assay, Substance P produced analgesia in mice with high sensitivity to pain, and hyperalgesia in mice with lower sensitivity to pain than normal. The analgesia was blocked by the antibody against met-enkephalin but the hyperalgesia or the scratching response were not modified by the antiserum. The results appear to indicate a dual effect, analgesic or hyperalgesic, of Substance P in mice, the former probably being mediated by release of met-enkephalin.

UI	MeSH Term	Description	Entries
D007106	Immune Sera	Serum that contains antibodies. It is obtained from an animal that has been immunized either by ANTIGEN injection or infection with microorganisms containing the antigen.	Antisera,Immune Serums,Sera, Immune,Serums, Immune
D008297	Male		Males
D008813	Mice, Inbred ICR	An inbred strain of mouse that is used as a general purpose research strain, for therapeutic drug testing, and for the genetic analysis of CARCINOGEN-induced COLON CANCER.	Mice, Inbred ICRC,Mice, ICR,Mouse, ICR,Mouse, Inbred ICR,Mouse, Inbred ICRC,ICR Mice,ICR Mice, Inbred,ICR Mouse,ICR Mouse, Inbred,ICRC Mice, Inbred,ICRC Mouse, Inbred,Inbred ICR Mice,Inbred ICR Mouse,Inbred ICRC Mice,Inbred ICRC Mouse
D010446	Peptide Fragments	Partial proteins formed by partial hydrolysis of complete proteins or generated through PROTEIN ENGINEERING techniques.	Peptide Fragment,Fragment, Peptide,Fragments, Peptide
D004744	Enkephalin, Methionine	One of the endogenous pentapeptides with morphine-like activity. It differs from LEU-ENKEPHALIN by the amino acid METHIONINE in position 5. Its first four amino acid sequence is identical to the tetrapeptide sequence at the N-terminal of BETA-ENDORPHIN.	Methionine Enkephalin,5-Methionine Enkephalin,Met(5)-Enkephalin,Met-Enkephalin,5 Methionine Enkephalin,Enkephalin, 5-Methionine,Met Enkephalin
D000700	Analgesics	Compounds capable of relieving pain without the loss of CONSCIOUSNESS.	Analgesic,Anodynes,Antinociceptive Agents,Analgesic Agents,Analgesic Drugs,Agents, Analgesic,Agents, Antinociceptive,Drugs, Analgesic
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D001414	Bacitracin	A complex of cyclic peptide antibiotics produced by the Tracy-I strain of Bacillus subtilis. The commercial preparation is a mixture of at least nine bacitracins with bacitracin A as the major constituent. It is used topically to treat open infections such as infected eczema and infected dermal ulcers. (From Goodman and Gilman, The Pharmacological Basis of Therapeutics, 8th ed, p1140)	Ak-Tracin,Altracin,Baci-IM,Baci-Rx,Baciguent,Bacitin,Bacitracin Zinc,Bacitracin Zinc Complex,Bacitracine Martinet,Ocu-Tracin,Topitracin,Zeba-Rx,Zinc Bacitracin,Ak Tracin,Baci IM,Baci Rx,Bacitracin, Zinc,Martinet, Bacitracine,Ocu Tracin,OcuTracin,Zeba Rx,Zinc, Bacitracin
D013373	Substance P	An eleven-amino acid neurotransmitter that appears in both the central and peripheral nervous systems. It is involved in transmission of PAIN, causes rapid contractions of the gastrointestinal smooth muscle, and modulates inflammatory and immune responses.	Euler-Gaddum Substance P,Hypothalamic Substance P,SP(1-11),Euler Gaddum Substance P,Substance P, Euler-Gaddum,Substance P, Hypothalamic
D051379	Mice	The common name for the genus Mus.	Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus