Pregnancy-Associated Plasma Protein-A
                             
                            
                            
                                
                            
                            
                                
                            
                            
                            
                                
                                    
                                            
	"Pregnancy-Associated Plasma Protein-A" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, 
	MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, 
	which enables searching at various levels of specificity.
	
	
		
			
			
				A product of the PLACENTA, and DECIDUA, secreted into the maternal circulation during PREGNANCY. It has been identified as an IGF binding protein (IGFBP)-4 protease that proteolyzes IGFBP-4 and thus increases IGF bioavailability. It is found also in human FIBROBLASTS, ovarian FOLLICULAR FLUID, and GRANULOSA CELLS. The enzyme is a heterotetramer of about 500-kDa.
    
			
			
				
				
					
						| Descriptor ID | D011266 | 
					
						| MeSH Number(s) | D08.811.277.656.300.480.632 D08.811.277.656.675.374.632 D12.776.780.700 | 
					
						| Concept/Terms | Pregnancy-Associated Plasma Protein-APregnancy-Associated Plasma Protein-APregnancy Associated Plasma Protein AIGFBP-4 ProteaseIGFBP 4 ProteaseProtease, IGFBP-4IGFBP-4-Specific ProteinaseInsulin-Like Growth Factor-Dependent IGF Binding Protein-4 ProteaseInsulin Like Growth Factor Dependent IGF Binding Protein 4 ProteasePAPP-APAPP-alphaPAPP alphaPregnancy Associated alpha Plasma ProteinPregnancy-Associated alpha-Plasma ProteinIGFBP-4 MetalloproteinaseIGFBP 4 MetalloproteinaseMetalloproteinase, IGFBP-4Insulin-Like-Growth Factor Binding Protein-4 ProteaseInsulin Like Growth Factor Binding Protein 4 Protease
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				Below are MeSH descriptors whose meaning is more general than "Pregnancy-Associated Plasma Protein-A".
				
			 
			
			
				Below are MeSH descriptors whose meaning is more specific than "Pregnancy-Associated Plasma Protein-A".
				
			 
		 
	 
 
                                        
                                            
	
	
		
			
			
					
				This graph shows the total number of publications written about "Pregnancy-Associated Plasma Protein-A" by people in this website by year, and whether "Pregnancy-Associated Plasma Protein-A" was a major or minor topic of these publications. 
				
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				Below are the most recent publications written about "Pregnancy-Associated Plasma Protein-A" by people in Profiles.
						
					
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								First-trimester screening for trisomy 21 by free beta-human chorionic gonadotropin and pregnancy-associated plasma protein-A: impact of maternal and pregnancy characteristics. Ultrasound Obstet Gynecol. 2008 May; 31(5):493-502. 
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								First-trimester ultrasound and biochemical markers of aneuploidy and the prediction of preterm or early preterm delivery. Ultrasound Obstet Gynecol. 2008 Feb; 31(2):147-52. 
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								Screening for trisomy 21 by fetal tricuspid regurgitation, nuchal translucency and maternal serum free beta-hCG and PAPP-A at 11 + 0 to 13 + 6 weeks. Ultrasound Obstet Gynecol. 2006 Feb; 27(2):151-5. 
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								Factors affecting women's preference for type of prenatal screening test for chromosomal anomalies. Ultrasound Obstet Gynecol. 2004 Dec; 24(7):735-9. 
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								The effect of temporal variation in biochemical markers of trisomy 21 across the first and second trimesters of pregnancy on the estimation of individual patient-specific risks and detection rates for Down's syndrome. Ann Clin Biochem. 2003 May; 40(Pt 3):219-31. 
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								Temporal changes in maternal serum biochemical markers of trisomy 21 across the first and second trimester of pregnancy. Ann Clin Biochem. 2002 Nov; 39(Pt 6):567-76. 
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								One-stop clinic for assessment of risk for trisomy 21 at 11-14 weeks: a prospective study of 15 030 pregnancies. Ultrasound Obstet Gynecol. 2002 Sep; 20(3):219-25. 
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								Age related detection and false positive rates when screening for Down's syndrome in the first trimester using fetal nuchal translucency and maternal serum free betahCG and PAPP-A. BJOG. 2001 Oct; 108(10):1043-6. 
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								Second trimester levels of pregnancy associated plasma protein-A in cases of trisomy 18. Prenat Diagn. 1999 Dec; 19(12):1127-34. 
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								A screening program for trisomy 21 at 10-14 weeks using fetal nuchal translucency, maternal serum free beta-human chorionic gonadotropin and pregnancy-associated plasma protein-A. Ultrasound Obstet Gynecol. 1999 Apr; 13(4):231-7.