Women of Childbearing Age and Fetal Alcohol Spectrum Disorder Prevention: A Position Paper

Dysbiotic microbiome variation in colorectal cancer patients is linked to lifestyles and metabolic diseases

BACKGROUND

Differences in the composition and diversity of the gut microbial communities among individuals are influenced by environmental factors. However, there is limited research on factors affecting microbiome variation in colorectal cancer patients, who display lower inter-individual variations than that of healthy individuals. In this study, we examined the association between modifiable factors and the microbiome variation in colorectal cancer patients.

METHODS

A total of 331 colorectal cancer patients who underwent resection surgery at the Department of Surgery, Seoul National University Hospital between October 2017 and August 2019 were included. Fecal samples from colorectal cancer patients were collected prior to the surgery. Variations in the gut microbiome among patients with different lifestyles and metabolic diseases were examined through the network analysis of inter-connected microbial abundance, the assessment of the Anna Karenina principle effect for microbial stochasticity, and the identification of the enriched bacteria using linear discrimination analysis effect size. Associations of dietary diversity with microbiome variation were investigated using the Procrustes analysis.

RESULTS

We found stronger network connectivity of microbial communities in non-smokers, non-drinkers, obese individuals, hypertensive subjects, and individuals without diabetes than in their counterparts. The Anna Karenina principle effect was found for history of smoking, alcohol consumption, and diabetes (with significantly greater intra-sample similarity index), whereas obesity and hypertension showed the anti-Anna Karenina principle effect (with significantly lower intra-sample similarity index). We found certain bacterial taxa to be significantly enriched in patients of different categories of lifestyles and metabolic diseases using linear discrimination analysis. Diversity of food and nutrient intake did not shape the microbial diversity between individuals (p_Procrustes>0.05).

CONCLUSIONS

Our findings suggested an immune dysregulation and a reduced ability of the host and its microbiome in regulating the community composition. History of smoking, alcohol consumption, and diabetes were shown to affect partial individuals in shifting new microbial communities, whereas obesity and history of hypertension appeared to affect majority of individuals and shifted to drastic reductions in microbial compositions. Understanding the contribution of modifiable factors to microbial stochasticity may provide insights into how the microbiome regulates effects of these factors on the health outcomes of colorectal cancer patients.

Adolescent Girls and Alcohol Use: Increasing Concern During the COVID-19 Pandemic

ABSTRACT

Adolescence is a time known for risky behaviors and often the initiation of alcohol use. Readily available, alcohol is often one of the drugs of choice for adolescents. Whereas in the past 30 years, the overall consumption of alcohol is down, the data in the past 10 years have shown more girls are binge drinking and meeting criteria for alcohol use disorder (AUD). The alarm of early alcohol use is the association with problems with the substances later in life. Historically, men and male adolescents consumed more alcohol than females. Recent studies indicate girls' alcohol use surpasses boys, whereas women now are developing AUD at the same rate as men. The consequences of early use can result in women's increased risk for multiple cancers, having a more severe form of AUD with less alcohol consumption as well as premature death. To further exacerbate this growing concern, the novel coronavirus (COVID-19) pandemic has created a perfect storm for increased use of alcohol to cope with the stress of living in an uncertain world. Normal daily activities have been halted with the uncertainty of school closures, zoom classroom sessions, and living in mandated social isolation. All nurses need to be screening for how families under their care have been managing stress. The time is opportune to educate and support parents in engaging their children in conversations around substance use. Parents can be supported to increase awareness of their own coping mechanisms and strengthen positive coping. Adolescents need support to strengthen interpersonal skills as well as make informed decisions concerning when and how they engage in alcohol consumption. This article will illuminate the growing need for all healthcare providers to assess and guide adolescents' coping skills during COVID with a focus on mental health, high-risk behavior, and alcohol use.