AGRIS

Data provider:

Icon data provider

The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

Active (Data provider submitted metadata in the last calendar year)
Journal Article

Journal Article

effect of pacific cod (Gadus macrocephalus) skin gelatin polypeptides on UV radiation-induced skin photoaging in ICR mice  [2009]

Hou, Hu; Li, Bafang; Zhao, Xue; Zhuang, Yongliang; et al.

Access the full text

Gelatin was extracted from Pacific cod (Gadus macrocephalus) skin and hydrolysed sequentially with pepsin and alkaline protease. The hydrolysates were fractionated into two ranges of molecular weight (PEP1: 2000Da<Mr<6000Da; PEP2: Mr<2000Da) using ultrafiltration membranes. In this present study, we investigate the protective effects of both polypeptides against ultraviolet radiation-induced skin photoaging by the activity of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), catalase (CAT) and the contents of glutathione (GSH), malondialdehyde (MDA), hydroxyproline (HYP) in photoaging skin tissue. The arrangement of collagen fibres in skin tissue was examined by Van Gienson stain. UV radiation-induced decrease in the antioxidase activity and depletion of reduced glutathione (20.4%) in the skin of hairless mice in a model group. Compared with the model, both polypeptides can enhance the activities of SOD, GSH-Px, CAT and the contents of GSH and HYP, and reduce the content of MDA, which minimised the skin photo damage. Moreover, the results of histology study confirmed that both polypeptides could protect collagen fibres in skin.
From the journal
Food chemistry
ISSN : 0308-8146

Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2013
Volume:
115
Issue:
3
Start Page:
945
End Page:
950
Publisher:
[Amsterdam]: Elsevier Science
All titles:
"effect of pacific cod (Gadus macrocephalus) skin gelatin polypeptides on UV radiation-induced skin photoaging in ICR mice"@eng
Other:
"Includes references"
Loading...

Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2013
Volume:
115
Issue:
3
Start Page:
945
End Page:
950
Publisher:
[Amsterdam]: Elsevier Science
All titles:
"effect of pacific cod (Gadus macrocephalus) skin gelatin polypeptides on UV radiation-induced skin photoaging in ICR mice"@eng
Other:
"Includes references"