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BACKGROUND: Around 8-10% of individuals over 50 years of age present interstitial lung abnormalities (ILAs), but their risk factors are uncertain. METHODS: From 817 individuals recruited in our lung ageing programme at the Mexican National Institute of Respiratory Diseases, 80 (9.7%) showed ILAs and were compared with 564 individuals of the same cohort with normal high-resolution computed tomography to evaluate demographic and functional differences, and with 80 individuals randomly selected from the same cohort for biomarkers. We evaluated MUC5B variant rs35705950, telomere length, and serum levels of matrix metalloproteinase (MMP)-1, MMP-2, MMP-3, MMP-7, MMP-8, MMP-9, MMP-12, MMP-13, interleukin (IL)-6, surfactant protein (SP)-D, α-Klotho and resistin. RESULTS: Individuals with ILAs were usually males (p<0.005), older than controls (p<0.0001), smokers (p=0.01), with a greater frequency of MUC5B rs35705950 (OR 3.5, 95% CI 1.3-9.4; p=0.01), and reduced diffusing capacity of the lung for carbon monoxide and oxygen saturation. Resistin, IL-6, SP-D, MMP-1, MMP-7 and MMP-13 were significantly increased in individuals with ILAs. Resistin (12±5 versus 9±4 ng·mL-1; p=0.0005) and MMP-13 (357±143 versus 298±116 pg·mL-1; p=0.004) were the most increased biomarkers. On follow-up (24±18 months), 18 individuals showed progression which was associated with gastro-oesophageal reflux disease (OR 4.1, 95% CI 1.2-12.9; p=0.02) and in females with diabetes mellitus (OR 5.3, 95% CI 1.0-27.4; p=0.01). CONCLUSIONS: Around 10% of respiratory asymptomatic individuals enrolled in our lung ageing programme show ILAs. Increased serum concentrations of pro-inflammatory molecules and MMPs are associated with ILAs.

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OBJETIVO: Avaliar a incidência da coledocolitiase em pacientes submetidos à colecistectomia laparoscópica, portadores de colecistopatia calculosa aguda e crônica. O presente estudo, também, analisa se a era laparoscópica modificou a incidência e a história natural da litíase da via biliar quando compara os dados da literatura com os índices do Grupo estudado. MÉTODO: O estudo foi realizado em um Grupo de 946 pacientes, distribuídos em Grupo A de 214 pacientes de 1991-1995 e Grupo B de 732 pacientes de 1999-2007 colecistectomizados pelo método laparoscópico. O critério diagnóstico de coledocolitíase foi estabelecido por colangiofluoroscopia de rotina em todas as operações. RESULTADOS: A incidência total de coledocolitiase no Grupo A de 9,8 por cento e no B de 5,8 por cento não mostram diferença estatística significativa entre si e com a literatura mundial (p=0,08).Nos pacientes operados por colecistite aguda também não se observou diferença estatística entre o grupo A e B na incidência de litíase da via biliar( p=0,8). A análise dos dados nos pacientes operados por colecistite crônica revela uma taxa de coledocolitíase menor no Grupo B de 3,7 por cento com significância estatística do que no A de 8,4 por cento p=0,03. CONCLUSÃO: O presente estudo revela uma diminuição expressiva na incidência de coledocolitiase no Grupo B em relação ao A e a literatura mundial quando a indicação cirúrgica ocorre na fase não complicada da doença litiásica biliar. O estudo também demonstra um aumento significativo na indicação da colecistectomia laparoscópica eletiva mais precoce no Grupo B como já observado em diversas publicações da literatura médica.

BACKGROUND: To evaluate the incidence of choledocholitiasis in patients submitted to the laparoscopic cholecystectomy, carriers of acute and chronic calculous cholecystitis .The present study also analyses if the laparoscopic age modified the incidence and the natural history of lithiasis of the biliary duct when it compares the data of literature with yhe indices of the studied group. METHOD: The study was carried out in a group of 946 patients subdivided in group A of 1991 - 1995 and group B of 732 patients of 1999 - 2007 submitted to the cholecystectomy by the laparoscope method. The diagnostic criterion of choledocholithiasis was estabilished by cholangiofluroscopy of routine in all surgeries. RESULTS: The total incidence of choledocholithiasis in the group A - 9,8 percent, and in the group B - 5,8 percent doesn't show difference significant statistics between itself and with the world-wide literature (p=0,08). In the patients operated for acute cholecystitis difference statistics was not also observed between group A and B in the incidence of lithiasis of the biliary duct (p=0,8). The analysis of the data in operated patients for chronic cholecystitis discloses a smaller tax of choledocholitiasis in group B of 3,7 percent with significant statistics in the group A of 8,4 percent p=0,03. CONCLUSION: The present study discloses an expressive reduction in the incidence of choledocholitiasis in group B in relation to the A and worl-wide literature when the surgical indication occurs in the not complicated phase of the biliary lithiasic illness. The study demonstrates a significant increase in the indication of precocious elective laparoscopic cholecystectomy in group B already observed in diverse publications of medical literature.