Differential scanning calorimetric measurements on human lenses
作者:
BettelheimFrederick A.,
ChristianStephen,
KaoLi,
期刊:
Current Eye Research
(Taylor Available online 1982)
卷期:
Volume 2,
issue 12
页码: 803-808
ISSN:0271-3683
年代: 1982
DOI:10.3109/02713688209020015
出版商: Taylor&Francis
数据来源: Taylor
摘要:
Differential scanning calorimetric measurements were performed between−30°C and 15°C. The cortical sections of normal human lenses usually show one endotherm at the melting point, while the nucleus indicates a composite endotherm that can be separated into two endotherms with two melting points. Cataractous human lenses usually have composite endotherms from the cortical, intermediate as well as nuclear regions. We interpret the different endotherms as representing different kinds of freezable water contents: free water and partially bound water. Both in normal and cataractous human lenses, there is an appreciable amount of non-freezable water”The amount of non-freezable water is less in cataractous lenses than in normal lenses, indicating a syneretic process as a cause of cataract formation.
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