A Bioinspired Hemostatic Powder Derived from the Skin Secretion of Andrias davidianus for Rapid Hemostasis and Intraoral Wound Healing

Small ◽  
2021 ◽  
pp. 2101699
Author(s):  
Ximu Zhang ◽  
Lin Jiang ◽  
Xian Li ◽  
Liwen Zheng ◽  
Ruyi Dang ◽  
...  
2019 ◽  
Vol 29 (31) ◽  
pp. 1809110 ◽  
Author(s):  
Jun Deng ◽  
Yingying Tang ◽  
Qing Zhang ◽  
Chao Wang ◽  
Min Liao ◽  
...  

2015 ◽  
Vol 77 (25) ◽  
Author(s):  
Nur Amirah Md Sungif ◽  
Ramlah Zainudin ◽  
Dayangku Norlida Awang Ojep ◽  
Ahmad Hata Rasit

A grafting techniques or using various synthetic and biological dressing also widely used to protect the wound area. There are 8 peptides with differential antimicrobial activities contained in Odorrana hosii’s skin secretion. However, to our best knowledge no study has been scientifically conducted to reveal the value off this species on wound healing. Primarily, the aim of this study was to look at the potential use of O. hosii’s skin as a biological dressing in wound healing management. This study assessed the wound healing in rat compared between wound grafted with O. hosii’s skin and wound treated with normal saline dressing. Histological examination was done to assess the wound healing activities after 14 days. The result shown, both wounds which were treated with O. hosii’s skin and untreated wound heal completely on day 14 as the epidermis and dermis completely close. Histologically, the percentage of neutrophils, macrophages and fibroblasts, were reduced on day 14. However, wounded skin, which was treated with O. hosii’s skin, had better healing quality as more new tissues and hair follicle regrowth compared with the untreated wound. It is suggested that poison gland in the O. hosii’s skin did not harm the wounded rat skin, instead, poison that act as defensive mechanism can help the species to fight the pathogen on the wound.


2021 ◽  
pp. 129136
Author(s):  
Liwen Zheng ◽  
Qunhao Wang ◽  
Yu Shrike Zhang ◽  
Hongmei Zhang ◽  
Yingying Tang ◽  
...  

2013 ◽  
Vol 68 (3-4) ◽  
pp. 164-168 ◽  
Author(s):  
Wentao Guo ◽  
Mingzhang Ao ◽  
Wei Li ◽  
Jianwen Wang ◽  
Longjiang Yu

A non-destructive method of collecting samples for DNA analysis of the Chinese giant salamander is described and validated. DNA was extracted from the skin secretion and shedding using a Chelex-based method, and partial 12S rRNA gene sequences were amplified and sequenced. Sequences from skin secretion and shedding were cross-checked against the reported sequences from liver and were found to be identical. This method provides a non-destructive way of carrying out larger studies of the genetics of rare amphibians and may be of general use for genetic-based field studies of amphibians.


2012 ◽  
Vol 67 ◽  
pp. 0086 ◽  
Author(s):  
Wentao Guo ◽  
Mingzhang Ao ◽  
Wei Li ◽  
Jianwen Wang ◽  
Longjiang Yu

2020 ◽  
Vol 245 ◽  
pp. 116554 ◽  
Author(s):  
Qunhao Wang ◽  
Tian Xia ◽  
Xiwen Jia ◽  
Jiangqi Zhao ◽  
Qingye Li ◽  
...  

2012 ◽  
Vol 67 (1-2) ◽  
pp. 86-92 ◽  
Author(s):  
Wentao Guo ◽  
Mingzhang Ao ◽  
Wei Li ◽  
Jianwen Wang ◽  
Longjiang Yu

Amphibian skin can produce abundant secretion which contains many bioactive compounds. In this work, skin secretion of the Chinese giant salamander (Andrias davidianus) was obtained by mild electrical stimulation of the dorsal skin surface, and the main physiopathological properties of the secretion were described. Intraperitoneal administration of the skin secretion caused lethal effects in mice. Low doses of the skin secretion induced significant systemic and local effects like edema and nociception in mice. The activities of phospholipase A2 and proteolytic enzyme were likely related to the physiopathological activities observed. The work proved the complex toxic effects of the Chinese giant salamander skin secretion and provided clues to study its physiological function further.


Author(s):  
Rick L. Vaughn ◽  
Shailendra K. Saxena ◽  
John G. Sharp

We have developed an intestinal wound model that includes surgical construction of an ileo-cecal patch to study the complex process of intestinal wound healing. This allows approximation of ileal mucosa to the cecal serosa and facilitates regeneration of ileal mucosa onto the serosal surface of the cecum. The regeneration of ileal mucosa can then be evaluated at different times. The wound model also allows us to determine the rate of intestinal regeneration for a known size of intestinal wound and can be compared in different situations (e.g. with and without EGF and Peyer’s patches).At the light microscopic level it appeared that epithelial cells involved in regeneration of ileal mucosa originated from the enlarged crypts adjacent to the intestinal wound and migrated in an orderly fashion onto the serosal surface of the cecum. The migrating epithelial cells later formed crypts and villi by the process of invagination and evagination respectively. There were also signs of proliferation of smooth muscles underneath the migratory epithelial cells.


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