Unhealthy and unsafe practices associated with symptoms of depression among injured patients

The anti-depression effect and mechanism of harmonious rosemary essential oil and its application in microcapsules

Depression imposes a heavy burden on patients and society, and current antidepressants often cause side effects such as dryness in the mouth and constipation. The explorations about aromatic plant essential oils provide a new method for the treatment of depression, but the mechanisms of antidepressant effect of these oils are not deeply enough. Here, the rosemary essential oil analyzed by GC-O and GC-MS techniques, whose main aromatic compounds are determined as 1,8-cineole (OAV = 1869.27, AI = 9.4), linalool (OAV = 1668.90, AI = 5.4), and ethyl decanoate (OAV = 1169.09, AI = 6.9). The network pharmacology was employed to investigate the possible pathway of action for antidepressant effects of the rosemary essential oil, and Gface software that can capture facial expressions was used to harmony the aroma to make the oil more pleasant. Then, the harmonious essential oil was proved to have antidepressant effects. For addressing issues of strong volatility and oxidation susceptibility of essential oil, dendrimer-like γ-cyclodextrin was prepared and encapsulate the essential oil. The obtained microcapsule prolonged fragrance duration and presented good stability, which are applied in aromatherapy and daily care products. This study lays a theoretical and methodological foundation for essential oil efficacy research and provides new strategies for designing and producing functional products related to essential oils.

Dietary fiber intake, depression, and anxiety: a systematic review and meta-analysis of epidemiologic studies

BACKGROUND

Findings of previous studies on relationship between dietary fiber intake and depression were inconsistent. We performed a meta-analysis on the association of dietary fiber intake with depression and anxiety in epidemiologic studies.

METHODS

We conducted a systematic search of electronic databases, up to May 2021. Data from 18 publications (12 cross-sectional, five cohort and one case-control studies) on dietary fiber consumption in relation to depression or anxiety were included. For depression, fifteen studies were conducted on adults and three others on adolescents. Anxiety was not included in the analysis, due to insufficient eligible studies.

RESULTS

Total dietary fiber intake was associated with a 10% lower odds of depression (OR = 0.90; 95% confidence interval [CI]: 0.86, 0.95) in adults and a 57% lower odds (OR = 0.43, 95% CI: 0.32, 0.59) in adolescents. Dose-response meta-analysis revealed an inverse linear association between total dietary fiber intake and odd of depression in adults; such that each 5-g increase in total dietary fiber intake was associated with a 5% reduction in risk of depression (OR = 0.95; 95% CI: 0.94, 0.97). An inverse significant association was observed between intake of fiber from vegetables (OR = 0.73; 95% CI: 0.66, 0.82) and soluble fiber (OR = 0.80, 95% CI: 0.71, 0.91) and odds of depression. However, cereal fiber, fiber from fruits and insoluble fiber were marginally associated with a reduction in having depression.

CONCLUSIONS

High intake of dietary fiber was protectively associated with depression in adults, in a dose-response fashion.