Vitamin A causes mutations (or not)

Vitamin A’s Influence on Immunity

Exposure to vitamin A in the womb influences immune system development and lifelong ability to fight infections, a mouse study shows.

By Ashley P. Taylor | March 19, 2014

Excerpt:  “The present study is the first to suggest that this development can be altered by maternal behavior.”

My comment: There’s a model for that!  It links nutrient stress and social stress to mammalian immune system function and nutrient-dependent pheromone-controlled ecological adaptations via conserved molecular mechanisms in species from microbes to man.

Nutrient-dependent/pheromone-controlled adaptive evolution: a model

Excerpt: “Embryos with retinoic acid receptor mutations had a smaller percentage of inducer cells than controls.”

My comment: That suggests the mutations do not contribute to adaptive evolution. Does anyone who is not a population geneticist think that mutation-driven evolution is biologically plausible?

Like all other experimental evidence, I think the results from this study show that ecological variation enables ecological adaptations. For contrast, only evidence from population genetics suggests that mutation-initiated natural selection is possible — and that evidence is not experimental evidence. Therefore, the idea that vitamin A causes mutations may seem like pseudoscientific nonsense to some molecular biologists, but not to those who believe in mutation-driven evolution.

About James V. Kohl 1308 Articles
James Vaughn Kohl was the first to accurately conceptualize human pheromones, and began presenting his findings to the scientific community in 1992. He continues to present to, and publish for, diverse scientific and lay audiences, while constantly monitoring the scientific presses for new information that is relevant to the development of his initial and ongoing conceptualization of human pheromones. Recently, Kohl integrated scientific evidence that pinpoints the evolved neurophysiological mechanism that links olfactory/pheromonal input to genes in hormone-secreting cells of tissue in a specific area of the brain that is primarily involved in the sensory integration of olfactory and visual input, and in the development of human sexual preferences. His award-winning 2007 article/book chapter on multisensory integration: The Mind’s Eyes: Human pheromones, neuroscience, and male sexual preferences followed an award winning 2001 publication: Human pheromones: integrating neuroendocrinology and ethology, which was coauthored by disinguished researchers from Vienna. Rarely do researchers win awards in multiple disciplines, but Kohl’s 2001 award was for neuroscience, and his 2007 “Reiss Theory” award was for social science. Kohl has worked as a medical laboratory scientist since 1974, and he has devoted more than twenty-five years to researching the relationship between the sense of smell and the development of human sexual preferences. Unlike many researchers who work with non-human subjects, medical laboratory scientists use the latest technology from many scientific disciplines to perform a variety of specialized diagnostic medical testing on people. James V. Kohl is certified with: * American Society for Clinical Pathology * American Medical Technologists James V. Kohl is a member of: * Society for Neuroscience * Society for Behavioral Neuroendocrinology * Association for Chemoreception Sciences * Society for the Scientific Study of Sexuality * International Society for Human Ethology * American Society for Clinical Laboratory Science * Mensa, the international high IQ society