Yohimbine and lacrimal secretion [letter]
نویسندگان
چکیده
منابع مشابه
Lacrimal streams: the demonstration of human lacrimal fluid secretion and the lacrimal ductules.
The clinical demonstration of the ductular orifices of the human lacrimal gland is reported. Lacrimal fluid secretion can be shown after instillation of 2% sodium fluorescein. Ductular orifices are visible on biomicroscopy. In keratoconjunctivitis sicca the lacrimal fluid streams appear normal, or to be diminished or absent.
متن کاملRetinol secretion by the lacrimal gland.
In order to determine the source of the retinol which has been identified in the tear fluid, the lacrimal gland ducts of rabbits and rats were cannulated and the collected lacrimal gland fluid was analyzed by high performance liquid chromatography. Retinol was identified in the lacrimal gland fluid of rabbits and rats, and it is concluded that the lacrimal gland is the source of retinol in the ...
متن کاملRole of the Sympathetic in Lacrimal Secretion.
THI lacrimal gland is innervated by the lacrimal, the facial, and the cervical sympathetic nerves; the anatomical and functional characteristics of each were briefly summarized in a previous communication (Whitwell, 1958). Overwhelming evidence points to the fact that the lacrimal nerve is not secretory in function, but is purely the afferent path ofa reflex arc. Similarly, the facial nerve is ...
متن کاملAutonomic control of lacrimal protein secretion.
The ability of cholinergic and adrenergic agonists to initiate protein secretion by in vitro slices of rabbit lacrimal gland was examined. The adrenergic response was not inhibited by atropine but was partially inhibited by propranolol and phentolamine. This indicates the presence of both alpha- and beta-adrenergic receptors and their association with the protein secretory response. The choline...
متن کاملDuct system of the rabbit lacrimal gland: structural characteristics and role in lacrimal secretion.
PURPOSE To develop a nomenclature for the lacrimal duct system in the rabbit, based on the anatomic and structural characteristics of each duct segment, and to provide RT-PCR and immunofluorescence data to support the notion that the duct system plays important roles in lacrimal function. METHODS Paraffin-embedded lacrimal glands (LGs) were stained with hematoxylin and eosin (H&E) and evaluat...
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ژورنال
عنوان ژورنال: British Journal of Clinical Pharmacology
سال: 1990
ISSN: 0306-5251
DOI: 10.1111/j.1365-2125.1990.tb03757.x