title: Prokineticin 1 mRNA expression in the endometrium of healthy women and in the eutopic endometrium of women with endometriosis.
abstract: OBJECTIVE
  To examine prokineticin 1 (PROK1) mRNA expression in eutopic endometrial glands obtained from patients with or without endometriosis, to investigate the presence of additional endometrial abnormalities in women with endometriosis.
  
  
  METHODS
  Prospective laboratory study.
  
  
  METHODS
  University hospital.
  
  
  METHODS
  Twelve control women and 12 patients affected by endometriosis in the secretory phase of the menstrual cycle.
  
  
  METHODS
  Endometrial specimens were obtained from women affected (cases) or not (control group) by endometriosis. Endometrial glands were freshly isolated from endometrial biopsies.
  
  
  METHODS
  PROK1 mRNA expression levels by real-time polymerase chain reaction analysis.
  
  
  RESULTS
  PROK1 mRNA was detectable in 4 of 12 (33%) samples obtained from women affected by endometriosis, whereas 10 of 12 (83%) samples obtained from normal women were positive for PROK1 detection by real-time polymerase chain reaction. Moreover, detectable PROK1 mRNA levels were 10 times lower in samples obtained from women with endometriosis than in samples obtained from control women.
  
  
  CONCLUSIONS
  PROK1 is a newly discovered angiogenic factor implicated in the vascular function of peri-implantation endometrium and early pregnancy. An altered expression of PROK1 could be one of the several biochemical abnormalities characterizing eutopic endometrium in endometriosis.
authors.affiliation: Istituto Scientifico Internazionale (ISI) Paolo VI, Università Cattolica del Sacro Cuore (UCSC), 00168 Rome, Italy. fm1810@inwind.it
authors.forename: Federica
authors.initials: F
authors.lastname: Tiberi
authors.forename: Anna
authors.initials: A
authors.lastname: Tropea
authors.forename: Rosanna
authors.initials: R
authors.lastname: Apa
authors.forename: Federica
authors.initials: F
authors.lastname: Romani
authors.forename: Antonio
authors.initials: A
authors.lastname: Lanzone
authors.forename: Riccardo
authors.initials: R
authors.lastname: Marana
mesh_terms: D000328:Adult; D001706:Biopsy; D004715:Endometriosis / Q000235:genetics* / Q000378:metabolism / Q000473:pathology; D004717:Endometrium / Q000378:metabolism* / Q000473:pathology; D005260:Female; D006262:Health; D006801:Humans; D008183:Luteal Phase / Q000235:genetics / Q000378:metabolism; D012333:RNA, Messenger / Q000378:metabolism; D014591:Uterine Diseases / Q000235:genetics* / Q000378:metabolism / Q000473:pathology; D042662:Vascular Endothelial Growth Factor, Endocrine-Gland-Derived / Q000235:genetics* / Q000378:metabolism
chemical_list: D012333:RNA, Messenger; D042662:Vascular Endothelial Growth Factor, Endocrine-Gland-Derived