PMID- 7982792
OWN - NLM
STAT- MEDLINE
DCOM- 19950104
LR  - 20190904
IS  - 0018-2214 (Print)
IS  - 0018-2214 (Linking)
VI  - 26
IP  - 8
DP  - 1994 Aug
TI  - Histochemical analysis of glycoproteins in the unicellar glands in the epidermis 
      of an Indian freshwater fish Mastacembelus pancalus (Hamilton).
PG  - 666-77
AB  - The unicellular glands in the epidermis of the Indian freshwater fish 
      Mastacembelus pancalus consist of three types of mucous cells and sacciform 
      cells. The histochemical properties of their secretory glycoproteins have been 
      analysed by means of a battery of histochemical methods. These included methods 
      for the identification and simultaneous visualization of oxidizable vicinal 
      diols, O-acyl sugars, O-sulphate esters and sialic acid residues with or without 
      side-chain O-acyl variants. Four general classes of glycoproteins (GPs) were 
      identified. These included (i) GPs with O-sulphate esters and oxidizable vicinal 
      diols, (ii) GPs with oxidizable vicinal diols and sialic acid residues with or 
      without O-acyl substitution at C7, (iii) GPs mainly with O-sulphate esters, low 
      moieties of GPs with oxidizable vicinal diols, O-acyl sugars and sialic acid 
      residues with side-chain O-acyl variant predominantly at C8 (or which are di- or 
      tri-substituted) or C9 and in traces of sialic acid residues without O-acyl 
      substitution or with O-acyl substitution at C7, and (iv) GPs with traces of 
      oxidizable vicinal diols, O-acyl sugars and sialic acid residues with O-acyl 
      substitution at C8 (or which are di- or tri-substituted) or C9. The physiological 
      significances of these GP classes and their release on the surface of the 
      epidermis are discussed with special reference to their role in lubrication, 
      protection and inhibition of the invasion and proliferation of pathogenic 
      microorganisms in the epidermis, as adapted to the peculiar mode of life of the 
      fish.
FAU - Mittal, A K
AU  - Mittal AK
AD  - Department of Anatomy, Nagoya City University Medical School, Japan.
FAU - Ueda, T
AU  - Ueda T
FAU - Fujimori, O
AU  - Fujimori O
FAU - Yamada, K
AU  - Yamada K
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - Netherlands
TA  - Histochem J
JT  - The Histochemical journal
JID - 0163161
RN  - 0 (Glycoproteins)
SB  - IM
MH  - Animals
MH  - Epidermal Cells
MH  - Epidermis/*chemistry/metabolism
MH  - Fishes/*metabolism
MH  - Glycoproteins/*analysis/metabolism
MH  - Histocytochemistry
MH  - Oxidation-Reduction
EDAT- 1994/08/01 00:00
MHDA- 1994/08/01 00:01
CRDT- 1994/08/01 00:00
PHST- 1994/08/01 00:00 [pubmed]
PHST- 1994/08/01 00:01 [medline]
PHST- 1994/08/01 00:00 [entrez]
AID - 10.1007/BF00158292 [doi]
PST - ppublish
SO  - Histochem J. 1994 Aug;26(8):666-77. doi: 10.1007/BF00158292.