Some photoresponses of isolated tissue preparations to ultraviolet light in the presence of photosensitizers.
Indian J Physiol Pharmacol
;
1978 Apr-Jun; 22(2): 136-41
Article
in English
| IMSEAR
| ID: sea-108505
ABSTRACT
Responses of isolated tissue preparations to ultraviolet (UV) light were studied with and without the presence of photosensitizers like eosin, fluorescein and sodium nitrite. Exposure to UV light in the presence of sodium nitrite induced consistent relaxation of rat duodenum. The photorelaxation was found to be related to the concentration of sodium nitrite. Adrenergic or cholinergic mechanisms do not seem to be involved. The isolated rat duodenum preparation exhibited quantitatively consistent photoresponse for 3 to 4 hr at its normal tone obviating the need for additional spasmogens as needed with other preparations. The preparation is a suitable test model for the study of photobiologic response evoked by UV light.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Anura
/
Rabbits
/
Rats
/
Sodium Nitrite
/
Ultraviolet Rays
/
Eosine Yellowish-(YS)
/
Fluoresceins
/
Guinea Pigs
/
Heart
/
Animals
Language:
English
Journal:
Indian J Physiol Pharmacol
Year:
1978
Type:
Article
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