title: Distribution of substance P (SP) and vasoactive intestinal peptide (VIP) in pseudocapsules of uterine fibroids.
abstract: The authors examined the presence of Substance P (SP) and Vasoactive Intestinal Polypeptide (VIP) and their related fibers in the pseudocapsule of uterine fibroids (PUF) and in normal myometrium (NM) during myomectomies in 57 non-pregnant women. 4 samples were removed from the normal myometrium (NM) and from PUF. The samples were sent for histological and immune-fluorescent investigations. SP and VIP values were found non-significantly higher in PUF than in NM: SP values were 10.2±0.1 conventional units (C.U.) in PUF at the fundus of the uterus (FU) vs. 8.1±0.6C.U. of NM in the FU (p>0.05), and SP values were 25.1±0.9C.U. in PUF in the uterine body (UB) compared to. 23.2±1.4C.U. of NM in the myometrium of the UB (p>0.05). VIP values were 11.5±0.9C.U. in the PUF in FU compared to 9.8±1.4C.U. of NM in the FU (p>0.05), and VIP values were 33.9±3.9C.U. in the PUF in the UB vs. 32.6±4.8C.U. of the NM in the UB (p>0.05). These findings show that SP and VIP neurofibers are present in the fibroid pseudocapsule, similar to the values in the normal myometrium of a non-pregnant uterus. An intracapsular myoma excision which respects the pseudocapsule permits a physiological healing process of the uterine scar, due to a neurotransmitter sparing at the hysterotomic site. In women planning pregnancy, the myomectomy should be preferably performed respecting the pseudocapsule in order to preserve the neurotransmission.
authors.affiliation: Department of Obstetric & Gynecology, Santa Maria Hospital, Bari, Italy.
authors.forename: Antonio
authors.initials: A
authors.lastname: Malvasi
authors.forename: Andrea
authors.initials: A
authors.lastname: Tinelli
authors.forename: Carlo
authors.initials: C
authors.lastname: Cavallotti
authors.forename: Manrico
authors.initials: M
authors.lastname: Morroni
authors.forename: Daniel Alberto
authors.initials: DA
authors.lastname: Tsin
authors.forename: Camran
authors.initials: C
authors.lastname: Nezhat
authors.forename: Michael
authors.initials: M
authors.lastname: Stark
authors.forename: Liselotte
authors.initials: L
authors.lastname: Mettler
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007889:Leiomyoma / Q000378:metabolism* / Q000473:pathology; D009215:Myometrium / Q000378:metabolism / Q000473:pathology; D013373:Substance P / Q000378:metabolism*; D014660:Vasoactive Intestinal Peptide / Q000378:metabolism*
chemical_list: D013373:Substance P; D014660:Vasoactive Intestinal Peptide