Chromodacryorrhea in laboratory rats (Rattus norvegicus): etiologic considerations.
Chromodacryorrhea was produced in 5, 7, and 16 week old intact and adrenalectomized rats following intravenous injection of acetylcholine or acute stress induced by limb restraint. Atropine blocked the lacrimal response to both stimuli, and epinephrine and corticosterone had no dacryogenic effects. The latent period between the onset of limb restraint and red tear release averaged 16 minutes.
D000109:Acetylcholine / Q000009:adverse effects; D000818:Animals; D000830:Animals, Laboratory; D005260:Female; D006358:Hot Temperature / Q000009:adverse effects; D007766:Lacrimal Apparatus Diseases / Q000139:chemically induced / Q000209:etiology / Q000662:veterinary*; D008297:Male; D051381:Rats; D012149:Restraint, Physical; D012376:Rodent Diseases / Q000139:chemically induced / Q000209:etiology*; D014868:Water Deprivation
D000109:Acetylcholine