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Results for “ADENITIS”

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At least 217 records · Page 12Linked to original sources
PubMed2004

The protein kinase C system in focal adenitis of the lacrimal gland in the non-obese diabetic mouse model for Sjögren's syndrome.

PURPOSE: Non-obese diabetic (NOD) mice develop an autoimmune exocrinopathy characterized by hyposecretion of saliva and acinar cell atrophy. As the protein kinase C (PKC) system is involved in the signal transduction pathways associated with primary secretion and acinar cell differentiation and growth, the PKC profile was analysed in NOD mice. METHODS: Lacrimal glands from BALB/c, NOD, NOD scid and transgenic NOD x interferon-gamma (IFN-gamma) mice were analysed for their PKC profiles using antibodies against several conventional (alpha, beta, gamma), novel (delta, epsilon, theta) and atypical (iota, lambda) PKC isoforms using the Streptavidin/HRP (horseradish peroxidase) method. RESULTS: Acinar cells in BALB/c control mice expressed two conventional (alpha, beta) and two atypical (iota, lambda) PKC isoforms. In NOD and transgenic NOD x IFN-gamma mice the same isoforms were more strongly expressed. NOD scid mice lacked all other PKC isoforms except PKC lambda. CONCLUSIONS: Co-expression of several PKC isoforms in single cell type may be necessary for transcriptional activation and agonist-induced secretory responses. Hyposecretion in NOD mice was paradoxically associated with up-regulation of the PKC system. This may be associated with a deranged signal transduction per se rather than with the immune-inflammation, as the transgenic NOD x IFN-gamma mice showed similar PKC profiles. The NOD model does not reproduce lack/consumption of PKC II and PKC as in Sjögren's syndrome. This may be because the receptor autoantibodies in mice are directed against the adrenergic, not muscarinic, receptors. Lack and/or low level PKC expression in NOD scid mouse may explain the excessive acinar cell apoptosis in this model.

Animals↗
PubMed1980

Aerobic and anaerobic bacteriology of cervical adenitis in children.

Needle aspirates from 53 inflamed cervical lymph glands were studies for aerobic and anaerobic bacteria and mycobacteria. Bacterial growth was achieved in 45 patients (85%). Sixty-six bacterial isolates were recovered, averaging 1.5 isolates per specimen (0.8 aerobes and 0.7 anaerobes), with as many as 4 isolates in some specimens. Aerobic organisms alone were recovered in 27 aspirates (60%) of the 45 culture-positive aspirates, anaerobic bacteria alone in 8 (18%), and mixed aerobic and anaerobic bacteria in 9 specimens (20%). Mycobacterium scrofulaceum was recovered in one (2%). The predominant aerobic organisms were Staphylococcus aureus (14 isolates) and group A beta hemolytic streptococci (8). A total of 31 anaerobes were recovered, including gram-positive cocci (9, including 6 Peptococcus sp. and 3 Peptostreptococcus sp.), 8 Bacteroides sp. (including 3 B. melaninogenicus), 5 Propionibacterium acnes, and 4 Fusobacterium nucleatum. These data demonstrate the role of anaerobic organisms in cervical lymphadenitis and the need to culture aspirated material for both aerobic and anaerobic microorganisms.

Adolescent↗