human
TASK: Your task is to answer biomedical questions using the given abstract. Only output yes, no, or maybe as answer.
INPUT: ['Moderate alcohol consumption has been shown to protect against coronary heart disease. However, excessive alcohol use has been suggested to have detrimental effects on the cardiovascular system. We examined whether there is an association between alcohol abuse and circulating levels of matrix metalloproteinase-9 (MMP-9), which has been linked to unstable coronary heart disease and arterial inflammation.', 'Serum MMP-9 concentrations were compared between 40 male alcoholics (mean age 42 years) with ethanol consumption > 1000 g week(-1) and 40 social drinker males with an ethanol consumption of < 200 g week(-1) (mean age 45 years).', 'The mean serum MMP-9 concentration was significantly higher in sera of alcoholics compared to control subjects (70.9 +/- 47.7 g L(-1) and 43.1 +/- 19.2 g L(-1), respectively; P = 0.001). Within the alcoholic group, MMP-9 concentration did not correlate with age, gamma glutamyl transferase, carbohydrate-deficient transferrin, aspartate aminotransferase, alanine aminotransferase or alkaline phosphatase.'] Is matrix metalloproteinase-9 elevated in serum of alcohol abusers?
OUTPUT:

agent
yes
TASK: Your task is to answer biomedical questions using the given abstract. Only output yes, no, or maybe as answer.
INPUT: ['Moderate alcohol consumption has been shown to protect against coronary heart disease. However, excessive alcohol use has been suggested to have detrimental effects on the cardiovascular system. We examined whether there is an association between alcohol abuse and circulating levels of matrix metalloproteinase-9 (MMP-9), which has been linked to unstable coronary heart disease and arterial inflammation.', 'Serum MMP-9 concentrations were compared between 40 male alcoholics (mean age 42 years) with ethanol consumption > 1000 g week(-1) and 40 social drinker males with an ethanol consumption of < 200 g week(-1) (mean age 45 years).', 'The mean serum MMP-9 concentration was significantly higher in sera of alcoholics compared to control subjects (70.9 +/- 47.7 g L(-1) and 43.1 +/- 19.2 g L(-1), respectively; P = 0.001). Within the alcoholic group, MMP-9 concentration did not correlate with age, gamma glutamyl transferase, carbohydrate-deficient transferrin, aspartate aminotransferase, alanine aminotransferase or alkaline phosphatase.'] Is matrix metalloproteinase-9 elevated in serum of alcohol abusers?
OUTPUT:
