Galanin, also known as GAL, is a human
gene.[1]
Galanin is a 30
amino acid
neuropeptide which is cleaved from
preprogalanin. It is involved in a number of physiological
processes such as regulation of food intake, metabolism and
reproduction, regulation of neurotransmitter and hormone
release, nociception, intestinal contraction and secretion, and
more recently in nervous system development and response to
injury. This wide diversity of action is mediated by several
galanin receptor subtypes.
Galanin is predominantly an inhibitory, hyperpolarizing
neuropeptide and as such inhibits
neurotransmitter release. The
Galanin receptor is often co-localized with classical
neurotransmitters such as
acetylcholine,
dopamine,
serotonin and
norepinephrine and also with other neuromodulators such as
Neuropeptide Y,
Substance P and
Vasoactive Intestinal Peptide.
Galanin has been implicated in the progression of
Alzheimer's disease.[citation
needed]
References
Further reading
- Wynick D, Thompson
SW, McMahon SB (2002). "The role of galanin as a
multi-functional neuropeptide in the nervous system.".
Current opinion in pharmacology 1 (1): 73-7.
PMID 11712539.
- Vrontakis ME
(2003). "Galanin: a biologically active peptide.".
Current drug targets. CNS and neurological disorders
1 (6): 531-41.
PMID 12769595.
- Mufson EJ, Counts
SE, Perez SE, Binder L (2005). "Galanin plasticity in
the cholinergic basal forebrain in Alzheimer's disease
and transgenic mice.". Neuropeptides 39 (3):
233-7.
doi:10.1016/j.npep.2004.12.005.
PMID 15893372.
- Berger A, Santic R,
Hauser-Kronberger C, et al. (2005). "Galanin and
galanin receptors in human cancers.". Neuropeptides
39 (3): 353-9.
doi:10.1016/j.npep.2004.12.016.
PMID 15944034.
- Robinson JK,
Bartfai T, Langel U (2006). "Galanin/GALP receptors and
CNS homeostatic processes.". CNS & neurological
disorders drug targets 5 (3): 327-34.
PMID 16787232.
- McKnight GL,
Karlsen AE, Kowalyk S, et al. (1992). "Sequence
of human galanin and its inhibition of
glucose-stimulated insulin secretion from RIN cells.".
Diabetes 41 (1): 82-7.
PMID 1370155.
- Gai WP, Geffen LB,
Blessing WW (1990). "Galanin immunoreactive neurons in
the human hypothalamus: colocalization with
vasopressin-containing neurons.". J. Comp. Neurol.
298 (3): 265-80.
doi:10.1002/cne.902980302.
PMID 1698834.
- Burleigh DE,
Furness JB (1991). "Distribution and actions of galanin
and vasoactive intestinal peptide in the human colon.".
Neuropeptides 16 (2): 77-82.
PMID 1701228.
- Fried G, Meister B,
Rådestad A (1991). "Peptide-containing nerves in the
human pregnant uterine cervix: an immunohistochemical
study exploring the effect of RU 486 (mifepristone).".
Hum. Reprod. 5 (7): 870-6.
PMID 1702449.
- Bersani M, Johnsen
AH, Højrup P, et al. (1991). "Human galanin:
primary structure and identification of two molecular
forms.". FEBS Lett. 283 (2): 189-94.
PMID 1710578.
- Hyde JF, Engle MG,
Maley BE (1991). "Colocalization of galanin and
prolactin within secretory granules of anterior
pituitary cells in estrogen-treated Fischer 344 rats.".
Endocrinology 129 (1): 270-6.
PMID 1711463.
- Bennet WM, Hill SF,
Ghatei MA, Bloom SR (1991). "Galanin in the normal human
pituitary and brain and in pituitary adenomas.". J.
Endocrinol. 130 (3): 463-7.
PMID 1719117.
- Schmidt WE, Kratzin
H, Eckart K, et al. (1992). "Isolation and
primary structure of pituitary human galanin, a
30-residue nonamidated neuropeptide.". Proc. Natl.
Acad. Sci. U.S.A. 88 (24): 11435-9.
PMID 1722333.
- Bauer FE,
Christofides ND, Hacker GW, et al. (1986).
"Distribution of galanin immunoreactivity in the
genitourinary tract of man and rat.". Peptides 7
(1): 5-10.
PMID 2423990.
- Bauer FE, Adrian
TE, Christofides ND, et al. (1986). "Distribution
and molecular heterogeneity of galanin in human, pig,
guinea pig, and rat gastrointestinal tracts.".
Gastroenterology 91 (4): 877-83.
PMID 2427385.
- Tainio H, Vaalasti
A, Rechardt L (1987). "The distribution of substance P-,
CGRP-, galanin- and ANP-like immunoreactive nerves in
human sweat glands.". Histochem. J. 19 (6-7):
375-80.
PMID 2444569.
- Maggi CA,
Santicioli P, Patacchini R, et al. (1988).
"Galanin: a potent modulator of excitatory
neurotransmission in the human urinary bladder.".
Eur. J. Pharmacol. 143 (1): 135-7.
PMID 2446889.
- Marti E, Gibson SJ,
Polak JM, et al. (1988). "Ontogeny of peptide-
and amine-containing neurones in motor, sensory, and
autonomic regions of rat and human spinal cord, dorsal
root ganglia, and rat skin.". J. Comp. Neurol.
266 (3): 332-59.
doi:10.1002/cne.902660304.
PMID 2447134.
- Beal MF, Clevens
RA, Chattha GK, et al. (1988). "Galanin-like
immunoreactivity is unchanged in Alzheimer's disease and
Parkinson's disease dementia cerebral cortex.". J.
Neurochem. 51 (6): 1935-41.
PMID 2460590.
- Berrettini WH, Kaye
WH, Sunderland T, et al. (1989). "Galanin
immunoreactivity in human CSF: studies in eating
disorders and Alzheimer's disease.".
Neuropsychobiology 19 (2): 64-8.
PMID 2465504.
See also
External links