PubMed HealthSearch

PubMed · 9796308

[Cell adhesion molecule].

Abstract

Platelet aggregation and thrombus formation secondary to plaque disruption at the sites of coronary atheroma play a prominent role in the pathophysiology of acute coronary syndromes. A fundamental role of cell adhesion molecules are implicated for the disease process of these syndromes. These adhesion molecules play a active role in cell-extracellular matrix interaction and cell-cell interaction at the first step of the thrombus formation at the culprit lesion of the coronary artery. A more comprehensive understandings of adhesion molecules and their functions may promote the development of potentially more effective therapeutic strategies for the syndromes. This review focuses on the role of platelet glycoprotein Ib, IIb/IIIa and P-selectin in the thrombotic process.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

H Ikeda. 1998. [Cell adhesion molecule].. https://pubmed.ncbi.nlm.nih.gov/9796308/

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

Intestinal intraepithelial lymphocytes exert potent protective cytotoxic activity during an acute virus infection.

After systemic infection of mice with 104 PFU of lymphocytic choriomeningitis virus (LCMV), infected cells are detected simultaneously in various organs, including spleen and intestinal mucosa. Most notably, virus-infected cells are also present among CD11c+ dendritic cells in the subepithelial area of the small intestinal mucosa. Some of these virus-infected cells are in close spatial association with intestinal intraepithelial lymphocytes (IEL). Therefore, we compared virus-specific cytotoxic activity of CD8 splenocytes with that of IEL subsets. While ex vivo isolated TCRalphabeta+CD8alphaalpha+ IEL exert only minimal virus-specific cytotoxicity, maximum specific killing mediated by TCRalphabeta+CD8alphabeta+ IEL on day 8 postinfection exceeds maximum cytotoxic activity observed with CD8 splenocytes when assessed in vitro. Maximum cytotoxic activity of IEL is preceded by peak perforin and granzyme B mRNA expression in IEL around day 6 postinfection, suggesting a recent activation in situ. The antivirus cytotoxicity of in vivo primed IEL is further demonstrated by the protection from virus production in the spleen of mice infected with LCMV 10 h before adoptive cell transfer. These data indicate a potent priming of LCMV-specific IEL in situ after systemic LCMV infection and suggest that cytotoxic IEL markedly contribute to the elimination of virus-infected cells in the intestinal mucosa.

Acute Disease

Further evidence for a role of nitric oxide in experimental allergic encephalomyelitis: aminoguanidine treatment modifies its clinical evolution.

The role of nitric oxide (NO) in inflammatory/demyelinating diseases is undergoing extensive investigation as a potential target for therapeutic intervention. However, interference with NO production has resulted in contrasting effects on the development of experimental allergic encephalomyelitis (EAE), the most widely used experimental model for multiple sclerosis (MS). Purpose of this paper was both the analysis of the individual clinical evolution of EAE induced in Lewis female rats by active immunisation and the evaluation of the effect of treatment with aminoguanidine, a selective inhibitor for the inducible isoform of nitric oxide synthase (iNOS). In our experimental model, relapse occurred in 66% of animals. Aminoguanidine treatment, started 3 days before immunisation, guaranteed a complete recovery from the acute phase and a delayed, milder relapse. Moreover, 79 days after immunisation inflammatory cellular infiltrates in the spinal cord were reduced. These data further support the involvement of NO in EAE evolution.

Acute Disease

Primary care based randomised, double blind trial of amoxicillin versus placebo for acute otitis media in children aged under 2 years.

OBJECTIVE: To determine the effect of antibiotic treatment for acute otitis media in children between 6 months and 2 years of age. DESIGN: Practice based, double blind, randomised, placebo controlled trial. SETTING: 53 general practices in the Netherlands. SUBJECTS: 240 children aged 6 months to 2 years with the diagnosis of acute otitis media. INTERVENTION: Amoxicillin 40 mg/kg/day in three doses. MAIN OUTCOME MEASURES: Persistent symptoms at day four and duration of fever and pain or crying, or both. Otoscopy at days four and 11, tympanometry at six weeks, and use of analgesic. RESULTS: Persistent symptoms at day four were less common in the amoxicillin group (risk difference 13%; 95% confidence interval 1% to 25%). The median duration of fever was two days in the amoxicillin group versus three in the placebo group (P=0.004). No significant difference was observed in duration of pain or crying, but analgesic consumption was higher in the placebo group during the first 10 days (4.1 v 2.3 doses, P=0.004). In addition, no otoscopic differences were observed at days four and 11, and tympanometric findings at six weeks were similar in both groups. CONCLUSIONS: Seven to eight children aged 6 to 24 months with acute otitis media needed to be treated with antibiotics to improve symptomatic outcome at day four in one child. This modest effect does not justify prescription of antibiotics at the first visit, provided close surveillance can be guaranteed.

Acute Disease