Objective:To investigate the application value of spiral CT combined with a disintegrin and metalloproteinase 8 (ADAM8), neuron-specific enolase (NSE) and cytokeratin 19 fragment (CYFRA21-1) measurements in the clinical diagnosis of lung cancer.Methods:Fifty patients with lung cancer who received treatment in Shanxi Rongjun Hospital from February 2018 to December 2019 were included in the lung cancer group. Fifty patients with benign lung disease who concurrently received treatment in Shanxi Rongjun Hospital were included in the benign lung disease group. Fifty 50 healthy controls who concurrently received treatment in Shanxi Rongjun Hospital were included in the control group. Serum levels of ADAM8, NSE and CYFRA211 were compared among the three groups. Three groups received spiral CT scans. ADAM8-, NSE- and CYFRA211-positive detection rates were analyzed. The receiver operating characteristic (ROC) curve was used to analyze the efficacy of different methods in the diagnosis of lung cancer. Serum ADAM8, NSE and CYFRA211 levels in patients with lung cancer at different TNM stages were compared.Results:Serum levels of ADAM8, NSE and CYFRA211 in the lung cancer and benign lung disease groups were (381.69 ± 34.82) ng/L, (255.28 ± 30.48) ng/L, (16.87 ± 3.11) μg/L, (9.27 ± 2.11) μg/L,(13.54 ± 8.10) μg/L, (3.01 ± 1.34) μg/L, respectively, which were significantly higher than those in the control group [(225.83 ± 24.19) ng/L, (7.42 ± 2.35) μg/L, (1.78 ± 1.02) μg/L, t = 5.352, 25.994, 4.142, 17.142, 5.165, 10.186, all P < 0.05]. Serum levels of ADAM8, NSE and CYFRA211 in the lung cancer group were significantly higher than those in the benign lung disease group ( t = 19.316, 14.299, 9.069, all P < 0.05). The positive detection rate of lung cancer by spiral CT combined with ADAM8, NSE and CYFRA211 measurements was 92.00%, which was significantly higher than that by spiral CT combined with a single detection ( χ2 = 7.862, 9.000, 11.422, 9.000, all P < 0.05). The ROC curve analysis revealed that the area under the ROC curve, sensitivity and specificity of the combined method were 0.916, 0.920 and 0.900, respectively, which were significantly higher than those of spiral CT combined with a single detection. Serum ADAM8, NSE and CYFRA211 levels at TNM stages III-IV were (430.18 ± 36.43) ng/L, (20.05 ± 3.49) μg/L, (15.93 ± 8.22) μg/L, respectively, which were significantly higher than those at TNM stages I-II [(314.72 ± 30.85) ng/L, (12.49 ± 2.67) μg/L, (10.25 ± 6.35) μg/L, t = 11.777, 8.312, 2.644, all P < 0.05). Conclusion:Spiral CT combined with serum ADAM8, NSE and CYFRA211 levels can greatly increase the diagnostic sensitivity and specificity of lung cancer, which is worthy of clinical application.

Cyclodextrin metal-organic framework (CD-MOF) as a highly porous supramolecular carrier could be one of the solutions to the insolubility of isosteviol (STV). The solubility of STV was lower than 20.00 ng/mL at pH 1.0 and pH 4.5, whilst its solubility increased to 20,074.30 ng/mL at pH 6.8 and 129.58 ng/mL in water with a significant pH-dependence. The