Tag Archives: toxins

Dr. M’s SPA Newsletter Volume 15 Issue 3

Podcast: Play in new window | Download

Subscribe: Email | RSS | More

Literature Review

1) Microplastics in the Brain – From Science Advances: “Human health is being threatened by environmental microplastic (MP) pollution. MPs were detected in the bloodstream and multiple tissues of humans, disrupting the regular physiological processes of organs. Nanoscale plastics can breach the blood-brain barrier, leading to neurotoxic effects. How MPs cause brain functional irregularities remains unclear. This work uses high-depth imaging techniques to investigate the MPs within the brain in vivo. We show that circulating MPs are phagocytosed and lead these cells to obstruction in the capillaries of the brain cortex. These blockages as thrombus formation cause reduced blood flow and neurological abnormalities in mice. Our data reveal a mechanism by which MPs disrupt tissue function indirectly through regulation of cell obstruction and interference with local blood circulation, rather than direct tissue penetration. This revelation offers a lens through which to comprehend the toxicological implications of MPs that invade the bloodstream.” (Huang et. al. 2025)

This weeks podcast is a direct look at the world of toxicology and the human consequences of exposure over time. Microplastics are the new and next trouble maker on the planet. This study raises the concern that micro and nano plastics can and do enter the brain and will disrupt and thus alter brain physiological processes. More time to answer the true risk reality. Not good. and more….Plus a letter about MAHA from Dr. Jeffrey Bland, a serious take on preventative medicine as opposed to disease pharmaceutical centric medicine.

Dr. M

Dr. M’s SPA Newsletter Audiocast Volume 14 Issue 36

Podcast: Play in new window | Download

Subscribe: Email | RSS | More

Section I

Literature Review

1) Long Covid in children – the symptoms are getting more clarity in who has what . From JAMA: 898 school-age children (751 with previous SARS-CoV-2 infection and 147 without) and 4469 adolescents (3109 infected and 1360 uninfected) were included in the analysis. The time between infection and symptom analysis was 1.5 years. In models adjusted for sex and race and ethnicity, 14 symptoms in both school-age children and adolescents were more common in those with SARS-CoV-2 infection history compared with those without infection history, with 4 additional symptoms in school-age children only and 3 in adolescents only. These symptoms affected almost every organ system. The cumulative data shows us that neurocognitive (Headache, attention concerns, sleep dysregulation), pain, and gastrointestinal symptoms in school-age children were common, but changed to loss of smell and/or taste, body aches and pain, focus struggles and fatigue related symptoms in adolescents. (Gross et. al. 2024) Age has a huge effect on these outcomes as the older population has more frequent and problematical disease findings. Mood disorder is highly associated with worsened findings. I suspect from the historical data set over the last four years that children with chronic mental stress, poor quality diets, sleep issues, and poor activity levels at baseline have worsened acute and long term prognosis.

Plus a section on a book review for Change Your Genes, Change Your Life.

Enjoy,

Dr. M

Dr. M’s Women and Children First Podcast #3 – Dr. Randy Jirtle and the Discovery of Maternal Risk

Podcast: Play in new window | Download

Subscribe: Email | RSS | More

Dr. Randy Jirtle joins the show today to discuss his groundbreaking research that ushered in the era of epigenetics. Time Magazine nominated him for person of the year in 2007 and had this to say about him: “Dr. Jirtle’s pioneering work in epigenetics and genomic imprinting has uncovered a vast territory in which a gene represents less of an inexorable sentence and more of an access point for the environment to modify the genome. His trailblazing discoveries have produced a far more complete and useful understanding of human development and diseases” — Time Magazine. This interview is ground zero for the Women and Children First Podcast as we discuss the underpinnings or mechanisms of disease risk for all humans as it relates to the environmental inputs of our lives that are driving health or disease at both the pregnancy and post natal periods. We look specifically at how maternal nutrition and later chemical exposure directly affected the health of the agouti mouse offspring. This experiment was the first of its kind and paved the way for a complete shift in human disease understanding. For parents, this podcast is really the beginning of everything that I am trying to convey regarding a healthy pregnancy and childhood. Without this interview, the following interviews will be more difficult to understand. The picture becomes very clear once his research is cemented in our minds.

His biography is as follows: Professor of Epigenetics at the Department of Biological Sciences, North Carolina State University, Raleigh, NC, and a Senior Scientist at McArdle Laboratory for Cancer Research at the University of Wisconsin, Madison, WI. He was previously professor of radiation oncology and associate professor of pathology at Duke University, Durham, NC, where he had been a faculty member since 1977. He graduated with a B.S. degree in nuclear engineering in 1970 and a Ph.D. degree in radiation biology in 1976, from the University of Wisconsin-Madison. His awards list is long but the key to Dr. Jirtle is that he is a curious thinker and we are grateful for this.

Please enjoy my conversation with Dr. Randy Jirtle,

Dr. M