Substances use disorders and liver injury: a concise review

Alcohol use disorder identification test renamed Glu-Glu Test in an area of north-west of Italy: preliminary descriptive results

BACKGROUND

The first two causes of liver cirrhosis and hepatocellular carcinoma are alcoholic and dysmetabolic. In the early stages alcohol related liver disease (ALD) is silent. For this reason, more efforts should be made to identify early individuals with hazardous/harmful alcohol consumption (AC). Alcohol use disorder identification test (AUDIT) is a validated test.

METHODS

ASL3 (Ligurian Local Health Company 3) has included the AUDIT renamed Glu-Glu Test on its institutional website dedicated to citizens. The renaming was carried out to bring citizens closer to the test with greater ease, especially younger citizens. At the end of the compilation of the test, the calculator provides the citizen with his score: in relation to his possible risk band, provides him with the appropriate advice. In case of a score higher than 7, ultrasonography and elastography (2D-SWE) are proposed.

RESULTS

From December 15, 2021, to July 15, 2022, 270 asymptomatic subjects requested a medical examination autonomously, without the indication of a health worker. In 167 patients the score found hazardous AC, in 65 harmful AC and in 38 alcohol addiction. In case of hazardous AC, fibrosis grade 1-2 was evidenced in 16.7%, fibrosis grade 3 in 4.8% and fibrosis grade 4 in 3.6% of subjects. In case of harmful AC fibrosis grade 1-2 was evidenced in 37%, grade 3 in 9%, grade 4 in 6%. In this group an HCC nodule was diagnosed. In case of alcohol addiction, fibrosis grade 1-2 was evidenced in 73.6%, grade 3 in 10.5% and grade 4 in 10.5%.

CONCLUSIONS

This preliminary experience clearly tells us that it is possible to make an early diagnosis of fibrosis and HCC starting from the AC reported autonomously by citizens.

Alcohol, smoke, cannabis, new psychoactive substances, and non-prescribed drugs consumption among school student in an area of Nord-West of Italy

BACKGROUND

Alcohol and/or substance use disorders are known to be a significant phenomenon in the Western world. The aim of the present study was to evaluate the consumption of alcohol, cigarette smoking, cannabis, new psychoactive substances (NSP) / non prescribed drug (NPD) in a student population in the north-west of Italy (metropolitan area of Genoa).

METHODS

Fourteen comprehensive schools in the metropolitan area of Genoa (Italy) have requested to participate in the education for correct lifestyles meetings (from December 16, 2021, to May 30, 2022). Before each meeting, a meeting was held with the reference teachers: 3805 students aged 9 to 17 were involved. The group was divided by age group: 9-11, 12-13, 14-15 and 16-17 years. Before the lesson, the students were given a questionnaire relating to various topics related to lifestyle or resulting from an incorrect lifestyle (alcohol consumption, cigarette smoking, cannabis, NPS/NPD, psychological path). The questionnaire was anonymous and was approved by the teachers in the preparation phase of the meeting.

RESULTS

Logistic regression analysis found that cannabis use in the age of 14-15 increases the risk of consuming NPD/NPD by more than 26 times (odd ratio 26.3012; 95% CI 15.9656 to 43.3275; P<0.0001). In the age of 16-17, this risk increases approximately 14 times (odd ratio 14.0625; 95% CI 6.1729 to 32.0360; P<0.0001). In the age of 14-15 years, cannabis consumption, alcohol consumption >2 alcoholic units (AUs) on one occasion, NPD increases the probability of the need for a psychological path (cannabis: odds ratio 14.0254, 95% CI 10.9-17.9, P<0.0001; alcohol: odds ratio 3.68, 95% CI 3-4.4, P<0.0001; NPS/NPD: odds ratio 20.98, 16.4-38.4, P<0.0001). In the age of 14-15 and 16-17 years, respectively, 53% (95% CI 50-58%) and 68% (95% CI 66-71%) of students declared that they had neither the parents nor the psychologist of having used alcohol and/or substances.

CONCLUSIONS

These data should be useful to policy makers to implement prevention and health promotion policies through teaching (education for correct lifestyles) to be permanently included in school programs and to be recognized in the curricular path.

SARS-CoV-2, alcohol consumption and liver injury

Angiotensin converting enzyme 2 (ACE2) receptor sites for severe acute respiratory syndrome Coronavirus-2 (SARS-CoV-2), responsible for the disease called Covid-19 are present in the liver, especially in correspondence with cholangiocytes. Liver damage during SARS-Cov-2 infection can be due to several mechanism including direct cytopathic effect, synergy of intestinal damage / liver damage (lipopolysaccharides / Kupfer and other cells interaction), uncontrolled immune reaction (lymphopenia and significant increase in C reactive protein, ferritin, lactate dehydrogenase, D-dimer, interleukin (IL)-6, IL- 10, IL-2, interferon-gamma ...), sepsis, drug-induced liver injury, hypoxia and thromboembolic events. An increase in aspartate aminotransferase (AST) from 14 to 58% and alanine transaminase (ALT) from 21 to 76% has been reported. The mean level of AST and ALT has been reported to be higher in patients admitted to the intensive care unit than in those hospitalized in the ordinary hospital unit. The correlation of liver damage with worse prognosis is now a known fact, confirmed by numerous studies, in all pandemic phases. The consumption of alcohol reduces both innate and acquired immune activity and it has been hypothesized that this habit is correlated with liver increase of ACE2 receptors. Furthermore, non-alcoholic and alcoholic steatosis / steatohepatitis is a breeding ground for the development of oxidative stress. In this context, any encounter with SARS-Cov-2 infection can support and aggravate the systemic cytokine tsunami.

Identification of Morphine and Heroin-Treatment in Mice Using Metabonomics

Although heroin and morphine are structural analogues and morphine is a metabolite of heroin, it is not known how the effect of each substance on metabolites in vivo differs. Heroin and morphine were administered to C57BL/6J mice in increasing doses from 2 to 25 and 3 to 9 mg kg⁻¹ (twice a day, i.p.), respectively, for 20 days. The animals underwent withdrawal for 5 days and were readministered the drugs after 10 days. Serum and urine analytes were profiled using gas chromatography-mass spectrometry (GC-MS), and metabolic patterns were evaluated based on metabonomics data. Metabonomics data showed that heroin administration changed metabolic pattern, and heroin withdrawal did not quickly restore it to baseline levels. A relapse of heroin exposure changed metabolic pattern again. In contrast, although the administration of morphine changed metabolic pattern, whether from morphine withdrawal or relapse, metabolic pattern was similar to control levels. The analysis of metabolites showed that both heroin and morphine interfered with lipid metabolism, the tricarboxylic acid (TCA) cycle and amino acid metabolism. In addition, both heroin and morphine increased the levels of 3-hydroxybutyric acid and citric acid but decreased the serum levels of 2-ketoglutaric acid and tryptophan. Moreover, heroin and morphine reduced the levels of aconitic acid, cysteine, glycine, and oxalic acid in urine. The results show 3-Hydroxybutyric acid, tryptophan, citric acid and 2-ketoglutaric acid can be used as potential markers of opiate abuse in serum, while oxalic acid, aconitic acid, cysteine, and glycine can be used as potential markers in urine.