Toxicants

Having to do with poison or something harmful to the body. Toxic substances usually cause unwanted side effects. – NCI Dictionary of Cancer Terms, U.S. National Cancer Institute, 2021

Aluminum / Toxicants

Aluminium adjuvants and childhood health: a call for science

Abstract
In July 2025, Andersson et al. reported in Annals of Internal Medicine that early-life exposure to Aluminium (Al)-adjuvanted vaccines was not associated with increased risk of 50 chronic diseases, based on a Danish cohort of 1.2 million children. While widely cited as reassuring evidence of Al-Based Adjuvant (ABA) safety, closer scrutiny reveals major methodological and conceptual flaws. Specifically, the study demonstrates limited understanding of Al toxicology, weaknesses in cohort design and statistical analysis, and insufficient transparency regarding potential conflicts of interest. We argue that these shortcomings prevent meaningful conclusions about ABA safety, particularly in relation to neurodevelopmental and autoimmune outcomes, and highlight the need for more rigorous, transparent, and scientifically grounded investigations.

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  • February 10, 2026
Aluminum / Blood brain barrier / Bradford Hill criteria / Epidemiology / HLA / IL-1β / Lymphocytes / MTHFR / Neuroinflammation / NLRP3 / Toxicants

Aluminum Adjuvants, Autoimmunity, and Autism Spectrum Disorder: AComprehensive Mechanistic, Neuropathological, and Legal Analysis

Conclusions: Converging mechanistic, neuropathological, epidemiological, and genetic evidence demonstrates that aluminum adjuvants can trigger ASD in genetically susceptible individuals through well-characterized neuroinflammatory pathways. The 80-fold increase in ASD prevalence temporally correlating with vaccine schedule expansion, combined with robust biological mechanisms and postmortem findings, demands urgent re-examination of aluminum adjuvant safety in the context of neurodevelopment, particularly in genetically vulnerable populations.

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  • February 2, 2026
BDNF / Glial Cells / Mercury / Neurons / Toxicants

Assessing the health hazards of low-dose ethylmercury: Neurochemical and behavioral impacts in neonatal mice through matrix metalloproteinase activation and brain-derived neurotrophic factor release

Highlights
•Exposure to ethylmercury (EtHG) poses neurotoxic risks in children.
•Behavioral abnormalities were induced by EtHg exposure in neonatal mice.
•Changes in neurite length and BDNF expression were observed.
•EtHg induces physiological changes in the brain by activating microglia.

Excerpt
“Our findings revealed that EtHg exposure led to significant alterations in brain development, including increased brain size and cortical thickness. These structural changes were accompanied by notable impairments in social interactions and behavioral patterns. Further analysis indicated that these effects were likely mediated by increased microglial activation and elevated BDNF expression in the cerebral cortex. Overall, our study suggests that EtHg disrupts neurodevelopment by activating microglia, leading to physiological and morphological changes in the brain.

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  • March 15, 2025
Aluminum / Cadmium / Genes / Mercury / Metallothionein / Seizure / Thimerosal / Toxicants / Zinc

The role of environmental trace element toxicants on autism: A medical biogeochemistry perspective

Excerpt:
“The Cr, As and Al are found in high concentrations in the blood of an autistic child when compared to normal child reference values. The toxic metals, particularly aluminium, are primarily responsible for difficulties in socialization and language skills disabilities. Zinc and copper are important elements in regulating the gene expression of metallothioneins (MTs), and zinc deficiency may be a risk factor for ASD pathogenesis. Autistics frequently have zinc deficiency combined with copper excess; as part of the treatment protocol, it is critical to monitor zinc and copper levels in autistic people, particularly those with zinc deficiency. Zinc deficiency is linked to epileptic seizures, which are common in autistic patients. Higher serum manganese and copper significantly characterize people who have ASD. Autistic children have significantly decreased lead and cadmium in urine, whereas they have significantly higher urine Cr. A higher level of As and Hg was found in the ASD individual’s blood.”

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  • February 2, 2023
Parental reports / Toxicants / Uptake

Profile of autism spectrum disorders in Morocco: cross-sectional retrospective study of parents of children with autism

Excerpt:

“All autistic children in our population were vaccinated according to the National Immunization Program. According to parent reports, 70% affirmed that the first autistic features appeared after vaccination with the measles-mumps-rubella (MMR) vaccine, knowing that this statement is not based on evidence.”

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  • January 25, 2023
Bias / Mercury / MMR / Thimerosal / Toxicants / Uptake

Examples of Outcome Reporting Bias in Vaccine Studies: Illustrating How Perpetuating Medical Consensus Can Impede Progress in Public Health

Conclusions: Conflicts of interest (e.g., financial) that abound between health regulatory agencies and the pharmaceutical industry impact what is ultimately reckoned as medical consensus. Outcome reporting bias that is inherent to all researchers to some degree, obscures medical and scientific truth. Advancement of public health requires that researchers have integrity and an openness and willingness to collaborate to resolve contradictory findings. In fact, it is usually through meticulous, rigorous, scientific investigation of contradictory findings that medical science has advanced and contributed to improvements in public health – since medical consensus and orthodoxy can be incorrect.

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  • September 21, 2022
20 Papers / 3 Studies / Adjuvant / Aluminum / Autophagy / Blood brain barrier / Cytokines / Dendritic cells / Genes / Glial Cells / IL-6 / Immune / Inflammation / Neuroinflammation / Oxidative Stress / Review / Toxicants

Inflammation and Autophagy: A Convergent Point between Autism Spectrum Disorder (ASD)-Related Genetic and Environmental Factors: Focus on Aluminum Adjuvants

Excerpts:
“As a result of these pieces of evidence (epidemiological, clinical and preclinical data) pointing to a potential causal association between early ABA (aluminum-based adjuvants) exposure and increased ASD risk, new hypotheses regarding neurological and immunological consequences of ABA-containing vaccines and novel clinical strategies (i.e., postponing of ABA-containing vaccines and replacement of ABAs with calcium phosphate are now being considered.“

“Our review presents the lack of fundamental scientific data demonstrating that Al adjuvants are safe and do not induce any long-term side effects. It also supports further investigation related to the effects of early Al adjuvant exposures occurring in combination with genetic susceptibility factors, including autophagy, immune and inflammation process genes. As accumulating evidence shows that modulating the levels of autophagy may increase the risk of NDDs, such studies will elucidate a new etiology for these complex disorders and contribute to develop potential new diagnostic and therapeutic tools.”

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  • August 31, 2022

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