Probiotics Before Childbirth: Protect Your Baby from Toxic Exposures with Gut Health
Probiotic supplements can lessen the harmful effects of polybrominated diphenyl ethers (PBDEs) on brain development, behavior, and metabolism, according to a new study. PBDEs are chemicals used as fire retardants found in various products such as upholstery, carpets, curtains, electronics, and baby items.
These substances disrupt hormones and accumulate in the environment. They have been found in water, soil, air, food, animals, human tissues, and breast milk. The research, conducted by the University of California, Riverside, appears in the Archives of Toxicology.
Margarita C Curras-Collazo, a neuroscience professor who led the study, noted, “Exposure to PBDEs during pregnancy can cause autistic-like behavior and metabolic syndrome in mice.” The study also found that PBDEs disturb the gut microbiome, which is important for brain and metabolic health. Supplementing the diets of pregnant mice with the probiotic Limosilactobacillus reuteri (LR) can help prevent these negative impacts.
LR is a probiotic that naturally occurs in the digestive system. It can produce lactic acid and is also found in beans, artichokes, sweet potatoes, fermented foods, and many dairy products. The researchers exposed mouse mothers to PBDEs or a control substance and supplemented some with LR during a 10-week period.
How do polybrominated diphenyl ethers (PBDEs) affect the gut microbiome and behavior in developing organisms?
Interview with Margarita C. Curras-Collazo: New Findings on Probiotics and PBDEs
News Directory 3: We’re joined today by Professor Margarita C. Curras-Collazo from the University of California, Riverside, who led a pivotal study investigating the impact of probiotic supplements on brain development and behavior in the face of exposure to polybrominated diphenyl ethers (PBDEs). Thank you for being with us, Professor Curras-Collazo.
Margarita Curras-Collazo: Thank you for having me. I’m excited to share our findings.
ND3: Your study highlights that PBDEs, commonly found in household products, can adversely affect brain development and behavior. Could you elaborate on how PBDEs disrupt normal development?
Margarita Curras-Collazo: Certainly. PBDEs are endocrine disruptors that can interfere with hormone function, which is crucial for development, especially during pregnancy. In our research, we found significant behavioral changes and metabolic issues in mice exposed to PBDEs, mimicking conditions like autistic-like behavior and metabolic syndrome.
ND3: That’s concerning. How did PBDEs specifically impact the gut microbiome, and why is this relevant?
Margarita Curras-Collazo: PBDEs were shown to disturb the gut microbiome, which plays a vital role in both brain and metabolic health. A healthy microbiome supports proper hormonal balance and can influence neurotransmitter production. When PBDEs disrupt this balance, it can lead to significant developmental issues.
ND3: It’s fascinating that you found a probiotic, Limosilactobacillus reuteri (LR), to mitigate some of these adverse effects. Can you explain how LR works in this context?
Margarita Curras-Collazo: Limosilactobacillus reuteri is a naturally occurring probiotic found in our digestive systems. It produces lactic acid, which is critical for maintaining gut health. In our study, mice that were supplemented with LR during pregnancy exhibited normal developmental milestones despite PBDE exposure, suggesting that LR helps to restore balance to the gut microbiome and counteracts the harmful effects of environmental toxins.
ND3: You mentioned that the treatment seemed to normalize tooth eruption timings and weight gain. What implications do these findings have for human health, particularly for pregnant women?
Margarita Curras-Collazo: Our research suggests that gut microbiota-focused therapies could be a protective strategy. For pregnant women, especially those exposed to environmental toxins, taking probiotics could potentially safeguard against developmental issues in their children. This opens the door for further research into how dietary interventions could complement traditional prenatal care.
ND3: Given the prevalence of PBDEs in the environment, what steps do you recommend women take to protect themselves and their children?
Margarita Curras-Collazo: Women should be aware of the products they use in their homes, opting for those that are free of known toxic substances. Incorporating probiotics like LR through diet—think fermented foods or supplements—could also be beneficial. Ultimately, it’s about reducing exposure and supporting gut health to optimize developmental outcomes.
ND3: Thank you for sharing these enlightening insights, Professor Curras-Collazo. It’s clear that your research has significant implications for public health and prenatal care.
Margarita Curras-Collazo: Thank you for shedding light on this important topic. I hope our findings encourage more conversations on health, environment, and prevention strategies.
The team then assessed the development of their offspring. They found that male mice exposed to PBDEs showed delayed weight gain and unusual timing of tooth eruption. However, LR treatment prevented these delays and helped normalize tooth eruption timing in both sexes.
Elena Kozlova, a doctoral student and co-first author, remarked on these surprising results. Curras-Collazo emphasizes that gut microbiota-focused therapies given to mothers before birth could shield against developmental issues and diseases linked to toxic exposures. This research opens new possibilities for protecting future generations from environmental toxins.