Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2009-10-8
pubmed:abstractText
Recent studies have implicated Chlamydia pneumoniae (C. pneumoniae) is present in a subset of patients with multiple sclerosis (MS) in which C. pneumoniae could act as a cofactor in the development of the disease. Macrolide antibiotics are most widely used anti-chlamydial agents and have immunomodulatory effect independently of their anti-bacterial activity. To investigate their effects on experimental autoimmune encephalomyelitis (EAE), EAE was induced by immunization with MBP68-86 peptide emulsified in complete Freund's adjuvant (CFA). Clarithromycin (CM) or azithromycin (AM, 50 mg/100 g body weight) was administrated daily from day 2 before immunization. All rats developed and survived EAE, but the groups administrated CM or AM had more severe symptoms. On day 11 post-immunization, mononuclear cells (MNCs) were prepared from the spleen of control group and cultured with or without macrolide antibiotics (10mug/ml). We evaluated nitric oxide (NO) production in the serum and culture supernatant. Inducible nitric oxide synthase (iNOS) mRNA and protein expression in the spinal cords and cultured MNCs were measured. The results showed that CM and AM similarly inhibited NO production and iNOS mRNA and protein expression in vivo and in vitro. Macrolide antibiotics may aggravate EAE by inhibiting iNOS mRNA and protein expression. Further studies are needed to investigate the effect of macrolide antibiotics on MS and to compare the effect of different anti-chlamydial antibiotics on MS.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1532-4311
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
602-12
pubmed:meshHeading
pubmed-meshheading:19811424-Amino Acid Sequence, pubmed-meshheading:19811424-Animals, pubmed-meshheading:19811424-Anti-Bacterial Agents, pubmed-meshheading:19811424-Azithromycin, pubmed-meshheading:19811424-Blotting, Western, pubmed-meshheading:19811424-Cells, Cultured, pubmed-meshheading:19811424-Chlamydophila Infections, pubmed-meshheading:19811424-Chlamydophila pneumoniae, pubmed-meshheading:19811424-Clarithromycin, pubmed-meshheading:19811424-Encephalomyelitis, Autoimmune, Experimental, pubmed-meshheading:19811424-Female, pubmed-meshheading:19811424-Gene Expression Regulation, Enzymologic, pubmed-meshheading:19811424-Leukocytes, Mononuclear, pubmed-meshheading:19811424-Macrolides, pubmed-meshheading:19811424-Nitric Oxide, pubmed-meshheading:19811424-Nitric Oxide Synthase Type II, pubmed-meshheading:19811424-Oligopeptides, pubmed-meshheading:19811424-Rats, pubmed-meshheading:19811424-Rats, Inbred Lew, pubmed-meshheading:19811424-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:19811424-Time Factors
pubmed:year
2009
pubmed:articleTitle
Macrolide antibiotics aggravate experimental autoimmune encephalomyelitis and inhibit inducible nitric oxide synthase.
pubmed:affiliation
Department of Neurology, The Third Affiliated hospital of Sun Yat-sen University, Guangzhou, China.
pubmed:publicationType
Journal Article