Daily mood reports revealed that traditional questionnaires were missed. Probiotics can increase negative emotions for healthy people and open a new way for preventive mental health strategies.
study: Probiotics reduces negative mood over time: value of daily report in effect detection. Image credit: Andrii zastrozhnov / shutterstock
In a recent study published in the journal NPJ Mental Health ResearchResearchers suggest that probiotics can reduce the negative mood of healthy individuals over time, but this effect was not captured by standard psychological questionnaire.
It is becoming increasingly difficult to find a way to strengthen mental health and prevent psychological symptoms. Despite the development of neuroscience, psychology and psychiatry, novel and effective interventions, including behavioral therapy, neuro stimuli, nutritional supplements and drug therapy, are required. Studies have shown that intestinal microbial communities can affect brain development, behavior and neurological chemistry.
Studies show that rodents that receive intestinal microbial guns from humans with depression indicate a change in depression at behavior and physiological levels. According to various human studies, probiotics can improve symptoms of anxiety, stress and depression. Nevertheless, some meta analysis reports beneficial effects, especially in the non -clinical population.
About research
In this study, researchers evaluated the effects of probiotics on emotion control. If the body mass index (BMI) is 18-30 kg/m², an individual has been qualified if he has not taken probiotics or antibiotics for the past three months or except for hormonal contraceptives for women. Those who use drugs more than once a month or consume 20 units per week have been excluded.
In addition, if there are gastrointestinal tracts, liver disease or kidney disease, central nervous system (CNS) disorders or trauma, psychiatric or psychological disorders, allergies or irritability (e.g. Ag, beans, gluten) or participate in this program for the past three months, the subject has been excluded. Participants were randomly assigned to take probiotics or placebo for four weeks.
Probiotics were supplied with freeze -dried powder containing nine bacterial strains: Lactococcus Lactis W19 and W58, Ligilactobacillus Salivarius W24, Lacticaseibacillus Casei W56, Levilactobacillus Brevis Brevis W63, Lactobacillus Acidophilus W52 and W52 and B. B. B. B. B. B. B. B. B. B. B. B. B. The placebo included the lyophilized powder and corn starch of the maltodextrin. Participants also completed some general questionnaire before and after the control of the emotions.
This is the epidemiological research depression scale (CES-D), positive and negative impact schedule (BPAQ), BUSS-Perry AppUSSTIONAIIRE (BVAQ), VVAQ, Penn State worrying questionnaire (PSWQ), Interoceptive Award (Maia), and PENCEADESTIVE AWARENINES (MAIA) State worrying questionnaire (PSWQ), and Penn State worrying questionnaire (PSWQ), and Penn State worrying questionnaire (PESWQ) and Liden Index-Reids-R.
Facial expression recognition work (fertilizer) analyzed the accuracy of identifying emotions, and dot probe work evaluated selective attention to facial emotional expression. Participants also reported the characteristics and moods of daily stool. The group difference was evaluated using the Wilcoxon Signed-Rank Test or 2-sample T-test. Before intervention, we decided whether the questionnaire score could predict which individuals will best respond to probiotics.
result
This study allocated 44 healthy adults to each group. Both groups had similar characteristics: the subject was 22.3 years old and BMI was 23 kg/m². The questionnaire rarely provided evidence that the emotion control has changed significantly as a result of intervention. The PSWQ score decreased after the intervention of the two groups. However, only placebo recipients have shown that they have significantly decreased.
Probiotics (dark colors) are displayed under the placebo group (light color), and the error bar represents the 95% confidence section of the average change.
Probiotics Group received lower scores from MAIA’s non -calm subcutures than placebo groups. This meant that the probiotics group tended to be distracted from discomfort or pain after intervention.
In addition, there was no treatment effect for the long frequency/complaints or bristol stool scale. There was no difference between the groups in the dot probe work.
In the case of imitation, the strength of the emotion predicts the perception accuracy, depending on the type of emotional expression. Nevertheless, there was a major effect of the session. The subject was more accurate in the session after intervention. Slightly significant interactions between the session and the group were observed, and the probiotics group slightly improved the recognition accuracy after intervention.
In addition, the probiotics group, especially after two weeks, decreased the negative atmosphere, and captured changes that were not detected by traditional questionnaires as measured by the daily mood itself. The exploratory analysis showed the correlation between the previous questionnaire scores and the daily negative emotions of the probiotics prisoners. Importantly, only the lower scale of Leids-R Risk Aversion predicts the improvement of the negative atmosphere.
conclusion
Taken together, there was no evidence that probiotics helped to measure the questionnaire of emotions. But they were associated with a decrease in negative mood over time when they were evaluated through everyday mood tracking. Even if you use multiple questionnaires, the only difference after intervention was the low score of the probiotics group on one MAIA subcair and a placebo group of PSWQ.
The research author emphasizes that the questionnaire can be sensitive enough to detect the subtle emotional changes of healthy individuals before and after intervention, while everyday mood tracking provides more subtle and rich evaluation. In particular, more dangerous avoidance individuals can have a higher negative atmosphere with probiotics.
