Alfa 1 antitrypsin and protease levels in Puerto Rican asthmatics: a pilot study
P. R. health sci. j
;
25(2): 117-125, Jun. 2006.
Artigo
em Inglês
| LILACS
| ID: lil-472192
ABSTRACT
A cross-sectional pilot study was conducted on a population of 119 asthmatics who had been recruited from the Emergency Room Department of a major hospital in Ponce, Puerto Rico. The purpose of the study was to determine the frequency of the MM, MS, and SS a-i-antiprotease variants. Also, we analyzed the serum levels of the alpha-1-antiprotease inhibitor, quantified the levels of serine proteases in homes of the asthmatic volunteers, and determined whether environmental levels of proteases, regardless of their sources, had any association with either asthma symptoms or alpha-1-antiprotease inhibitor phenotypes. Our results do not support the role of the alpha-1-antiprotease as a risk factor for asthma in the study population as previously reported. Patients who had visited the ED due to asthma on 3 or more occasions had significantly higher trypsin levels than those who had done so 2 or fewer times. Of those asthmatic patients who had daily symptoms, 40had been exposed to high levels of elastase, and 33.3to trypsin. Similarly, 52.9of the patients with 2 or more hospitalizations a year had been exposed to high elastase levels, and 40.5of asthma patients who had nocturnal asthma more than 3 times a week had been exposed to high levels of elastase.
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Índice:
LILACS (Américas)
Assunto principal:
Peptídeo Hidrolases
/
Asma
/
Alfa 1-Antitripsina
Tipo de estudo:
Estudo de etiologia
/
Estudo observacional
/
Estudo de prevalência
/
Fatores de risco
Limite:
Adulto
/
Humanos
País/Região como assunto:
Caribe
/
Porto Rico
Idioma:
Inglês
Revista:
P. R. health sci. j
Assunto da revista:
Medicina
Ano de publicação:
2006
Tipo de documento:
Artigo
País de afiliação:
Porto Rico
Instituição/País de afiliação:
Ponce School of Medicine/PR
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