X-ray microanalysis of freeze-dried labial gland cryosections revealed that Na concentration was doubled and the Ca/S concentration ratio was decreased in secretory granules of labial glands from patients with cystic fibrosis (CF) when compared with glands from normal subjects. Other results suggested that the decrease in the Ca/S concentration ratio resulted from an increase in S concentration...

The distribution of immunoglobulin-containing cells within 8 normal human labial salivary glands was studied using an immunoperoxidase technique. Cell counts revealed that IgA-containing cells pre-dominated in all specimens and that the mean percentage class ratios for IgG:IgA:IgM:IgD cells were 4:92:3:1. IgE cells were rare and only detected in one gland. The density of IgA cells (191 cells/mm...

OBJECTIVE To assess the expression of ICAM1, VCAM1, E-selectin, CD44, and TNF alpha in labial salivary glands of patients with rheumatoid vasculitis. METHODS Labial salivary glands from six patients with rheumatoid vasculitis before and after treatment, six aged matched rheumatoid arthritis patients without clinical evidence of rheumatoid vasculitis, 10 patients with primary Sjögren syndrome,...

Labial glands are present in all castes and developmental stages of all termite species. In workers, their secretion contains a food-marking pheromone and digestive enzymes, while soldier secretion plays a defensive role. However, these functions were studied only in a limited set of species, and do not allow drawing general conclusions. Hence, we have investigated the chemical composition of t...

The labial glands of Manduca sexta die over 5 days during larva to pupa metamorphosis. This cell death is presumably triggered by endocrine cues. The mechanisms by which steroid hormones induce apoptosis, however, are poorly understood. To investigate the role that the insect molting hormone, 20hydroxyecdysone (20HE), plays in apoptosis of larval structures, we injected animals with exogenous 2...

As a result of their presence throughout the mouth in the submucosa or between muscle fibers, minor salivary glands secrete directly and continuously into the oral cavity, providing mucosal surfaces with highly glycosylated proteins that are active in bacterial aggregation and in oral tissue lubrication. In this study, we investigated the ultrastructural localization of the MUC5B and MUC7 mucin...

The distribution of immunoglobulin-containing cells within 8 normal human labial salivary glands was studied using an immunoperoxidase technique. Cell counts revealed that IgA-containing cells predominated in all specimens and that the mean percentage class ratios for IgG:IgA:IgM:IgD cells were 4:92:3:1. IgE cells were rare and only detected in one gland. The density of IgA cells (191 cells/mm ...

UNLABELLED Diagnosis of Sjögren's syndrome (SS) is complex and the usefulness of labial minor salivary glands biopsy in this process remains controversial. OBJECTIVE to evaluate the clinical and laboratorial profile and histological features on labial minor salivary glands from patients under investigation of SS. STUDY DESIGN clinical charts from 38 patients under suspicion of SS and submit...

More than half of the proteome from mandibular glands in caterpillars is represented by chemosensory proteins. Based on sequence similarity, these proteins are putative transporters of ligands to gustatory receptors in sensory organs of insects. We sought to determine whether these proteins are inducible by comparing, both qualitatively and quantitatively, the salivary (mandibular and labial) p...