Abstract:
:Although serotonin has been shown to play an important role in peripheral pain mechanisms, the specific subtypes of serotonin receptors involved in pain and hyperalgesia remain poorly understood. To date, no previous study has attempted to determine the presence of any serotonin receptor subtype in human dorsal root ganglia. In this study, the presence of messenger RNA for eight human serotonin receptor subtypes in lumbar dorsal root ganglia was detected using the method of polymerase chain reaction. Dorsal root ganglia were excised post mortem from four patients. Oligonucleotide primers were chosen based on unique regions of complimentary DNA sequence for eight cloned human serotonin receptor subtypes (i.e. 5-HT1A, 5-HT1D alpha, 5-HT1D beta, 5-HT1E, 5-HT1F, 5-HT2A, 5-HT2C and 5-HT7). The presence of 5-HT1D alpha, 5-HT1D beta, 5-HT1E, 5-HT1F, 5-HT2A and 5-HT7 receptor subtype messenger RNA was detected in dorsal root ganglia from three of the four subjects. 5-HT1A receptor subtype messenger RNA was detected in one of the four subjects. No 5-HT2C receptor subtype messenger RNA could be detected. Findings from this study may direct further efforts to determine the role of serotonin receptors in the peripheral nervous system.
journal_name
Neurosciencejournal_title
Neuroscienceauthors
Pierce PA,Xie GX,Meuser T,Peroutka SJdoi
10.1016/s0306-4522(97)00235-2subject
Has Abstractpub_date
1997-12-01 00:00:00pages
813-9issue
3eissn
0306-4522issn
1873-7544pii
S0306-4522(97)00235-2journal_volume
81pub_type
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