Search results
Results from the WOW.Com Content Network
Injury in animals is damage to the body caused by wounding, change in pressure, heat or cold, chemical substances, venoms and biotoxins. Injury prompts an inflammatory response in many taxa of animals ; this prompts wound healing , which may be rapid, as in the Cnidaria .
A gorilla licking a wound. Wound licking is an instinctive response in humans and many other animals to cover an injury or second degree burn [1] with saliva. Dogs, cats, small rodents, horses, and primates all lick wounds. [2] Saliva contains tissue factor which promotes the blood clotting mechanism.
Timing is important to wound healing. Critically, the timing of wound re-epithelialization can decide the outcome of the healing. [11] If the epithelization of tissue over a denuded area is slow, a scar will form over many weeks, or months; [12] [13] If the epithelization of a wounded area is fast, the healing will result in regeneration.
Research into hormones and wound healing has shown estrogen to speed wound healing in elderly humans and in animals that have had their ovaries removed, possibly by preventing excess neutrophils from entering the wound and releasing elastase. [26] Thus the use of estrogen is a future possibility for treating chronic wounds.
Necrosis is caused by factors external to the cell or tissue, such as infection, or trauma which result in the unregulated digestion of cell components. In contrast, apoptosis is a naturally occurring programmed and targeted cause of cellular death. While apoptosis often provides beneficial effects to the organism, necrosis is almost always ...
These growth factors lead to new blood vessel formation, inflammatory cell infiltration, and the generation of connective tissue, which should ultimately improve the speed and quality of healing. The goal of platelet-rich plasma (PRP) is to concentrate these growth factors, which may then be injected into a lesion.
2. Aloe Vera. Known for its wound-healing properties and gelatinous interiors, aloe vera contains compounds that improve blood circulation. The gel-like plant juice also has antioxidant and anti ...
Cat-scratch disease has a worldwide distribution, but it is a nonreportable disease in humans, so public health data on this disease are inadequate. [22] Geographical location, present season, and variables associated with cats (such as exposure and degree of flea infestation ) all play a factor in the prevalence of CSD within a population. [ 23 ]