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Philip Morris

Development of Alterations in the Primary Immune Response of Mice by Exposure to Fresh Cigarette Smoke

Date: 1974
Length: 1 page
2063594163
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Author
Holt, P.G.
Keast, D.
Thomas, W.R.
Characteristic
EXTR, EXTRA
Master ID
2063594010/4240
Related Documents:
Site
R530
Area
CARCHMAN,RICHARD/OFFICE
Litigation
Iwoh/Produced
Type
SCRT, REPORT, SCIENTIFIC
Named Organization
Hamburg
Int Arch Allergy
Date Loaded
07 Jun 1999

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! t I I I I I I I I I I I I I I I I # 99 AUTHOR; THOMAS, W. R., P.G. HOLT, AND D. KEAST DATE: 1974 TITLE; DEVELOPMENT OF ALTERATIONS IN THE PRIMARY IMMUNE RESPONSE OF MICE BY EXPOSURE TO FRESH CIGARETTE SMOKE CITATION; INT. ARCH. ALLERGY 46:481-486 (1974) STUDY DESIGN: Groups of five C57 Black mice were exposed to fresh cigarette smoke for 0,9,36,120,182, and 294 days. Smoking machine was the Hamburg II set to deliver a mixture of smoke/air (1:7) at a puff volume of 35 ml. Animals were exposed daily to the mixture for 7-8 minutes. The plaque- forming cell response present in the lung, mediastinal and cervical lymph nodes, blood and spleen of exposed animals was measured 7 days after intratracheal inoculation with sheep erythrocytes. This was compared to the response in age-matched controls. RNDINGS/RESULTS: The response in all organs showed progressive impairment over the exposure period. The response of the lymph nodes was initially enhanced by the smoking, but after continued exposure became severely depressed. CONCLUSIONS/COMMENTS: The study indicates that cigarette smoke exposure progressively impairs the primary immune response, rather than exerting an immediate toxic effect.

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