نتایج جستجو برای: lacrimal glands
تعداد نتایج: 41756 فیلتر نتایج به سال:
PURPOSE Previous research has demonstrated that testosterone therapy causes a profound suppression of autoimmune disease in lacrimal glands of female mouse models of Sjögren's syndrome. The aim of the present study was to determine whether other anabolic androgens, nonandrogenic steroids, or immunosuppressive agents might duplicate this hormonal effect. For comparative purposes, we also evaluat...
SARCOIDOSIS is well recognized as a cause of swelling of the lacrimal glands and enters into the differential diagnosis of tumours of this region (DukeElder, 1952). Such swellings may be followed, in some cases, by a form of keratoconjunctivitis sicca (Ainslie and James, 1956; Gruber, 1956). The association of systemic sarcoidosis with keratoconjunctivitis sicca in the absence of swelling of th...
The sulfating effect of TSH on guinea pig Harderian and ventral lacrimal glands teas investigated by differential centrifugation and by studies on the two glands' sulfatase activity. Radiosulfate incorporation in the Harderian as compared to that in the ventral lacrimal gland, was 1:10. The particulate elements of the two glands incorporated radiosulfate differently—58 per cent of the Harderian...
PURPOSE To explore the sympathetic innervation pattern and the role of sympathetic nervous system control of protein secretion in the exorbital lacrimal glands of normal mice. METHODS Mouse lacrimal glands were processed for single- and double-label indirect immunofluorescence studies to show their innervation patterns. The sucrose-potassium phosphate-glyoxylic acid method was also used to vi...
Three cases of oncocytoma (oxyphil adenoma) of the lacrimal caruncle are reported. Transmission electron microscopy performed on one of the lesions confirms the tumour to be composed of cells containing abnormally large numbers of mitochondria. It is suggested that these tumours arise from accessory lacrimal glands or their secretory ducts.
The rabbit has been a useful model for in vivo studies of the pharmacologic control of lacrimal gland fluid secretion. However, by contrast with rodent exorbital lacrimal glands, the rabbit lacrimal gland has not been subjected to detailed cellular, subcellular, or biochemical analyses. Procedures were developed to isolate rabbit lacrimal acini by collagenase digestion and mechanical dispersion...
In 2012, the Food and Drug Administration (FDA) approved the use of F-18 florbetapir to estimate β-amyloid neuritic plaque density when indicated. A normal scan will show increased radiotracer uptake in the white matter. Mild uptake in salivary glands, skin, muscles, and bones is considered normal. Being a new and infrequently performed study, familiarity with normal biodistribution and variant...
The human tear film is a 3-layered coating of the surface of the eye and a loss, or reduction, in any layer of this film may result in a syndrome of blurry vision and burning pain of the eyes known as dry eye. The lacrimal gland and accessory glands provide multiple components to the tear film, most notably the aqueous. Dysfunction of these glands results in the loss of aqueous and other produc...
BACKGROUND Amiodarone is a drug that is used for treatment of cardiac arrhythmia after cardiac ischemia. This drug as beta blocker decreases arrhythmia rate but it has many side effects on different tissues. Since there are rare reports about changes of lacrimal glands, this research has been carried out to study the morphological and ultrastructural changes of lacrimal gland cells after amioda...
Epithelial tumors of the lacrimal gland are histologically similar to salivary gland tumors. Here we report on a rare case of mucoepidermoid carcinoma (MEC) in a 73‑year-old man with a swelling of the left lacrimal gland. The tumor had a microscopic appearance consistent with a classical low-grade MEC of the lacrimal gland. There were no signs of ...
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