PMID- 2606319
OWN - NLM
STAT- MEDLINE
DCOM- 19900213
LR  - 20061115
IS  - 0016-5840 (Print)
IS  - 0016-5840 (Linking)
VI  - 135
IP  - 5
DP  - 1989
TI  - Comparative distribution of four lysosomal enzymes within various structures of 
      the human placenta.
PG  - 747-59
AB  - The histochemical activity of 4 lysosomal enzymes, acid phosphatase (AP), 
      nonspecific esterase (NE), aryl sulphatase (AS), and beta-glucuronidase (BG), was 
      compared in following structures of the human placenta: syncytiotrophoblast, 
      villous stromal cells, fetal capillaries and larger blood vessels, cells of basal 
      plate, macrophages, and Hofbauer cells. In spite of a general similarity in 
      distribution of the investigated enzymes, differences concerning particular 
      structures were found. Thus positively stained granules in endothelia of 
      capillary vessels were revealed only in the reaction for BG, although contours of 
      capillaries were also outlined by the diffuse reaction product for AS. The 
      muscular layer of larger vessels reacted strongly for AS and weakly for NE with 
      the remaining reactions being negative. In syncytiotrophoblast, BG appeared much 
      less active than the other 3 enzymes. The possible significance of the BG 
      positive granules in endothelial of capillaries and of the occasional divergence 
      in distribution of the classical lysosomal markers (AP and BG) is discussed.
FAU - Mirecka, J
AU  - Mirecka J
AD  - Department of Histology, Copernicus Medical Academy, Krakow, Poland.
FAU - Hanarz, M
AU  - Hanarz M
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PL  - Germany
TA  - Gegenbaurs Morphol Jahrb
JT  - Gegenbaurs morphologisches Jahrbuch
JID - 0370733
RN  - EC 3.1.1.- (Carboxylic Ester Hydrolases)
RN  - EC 3.1.1.1 (Carboxylesterase)
RN  - EC 3.1.3.2 (Acid Phosphatase)
RN  - EC 3.1.6.- (Sulfatases)
RN  - EC 3.1.6.1 (Arylsulfatases)
RN  - EC 3.2.1.31 (Glucuronidase)
SB  - IM
MH  - Acid Phosphatase/*analysis
MH  - Adult
MH  - Arylsulfatases/*analysis
MH  - Carboxylesterase
MH  - Carboxylic Ester Hydrolases/*analysis
MH  - Chorionic Villi/enzymology
MH  - Female
MH  - Glucuronidase/*analysis
MH  - Histocytochemistry
MH  - Humans
MH  - Lysosomes/enzymology
MH  - Macrophages/enzymology
MH  - Placenta/cytology/*enzymology
MH  - Pregnancy
MH  - Sulfatases/*analysis
EDAT- 1989/01/01 00:00
MHDA- 1989/01/01 00:01
CRDT- 1989/01/01 00:00
PHST- 1989/01/01 00:00 [pubmed]
PHST- 1989/01/01 00:01 [medline]
PHST- 1989/01/01 00:00 [entrez]
PST - ppublish
SO  - Gegenbaurs Morphol Jahrb. 1989;135(5):747-59.