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Mechanisms6 sources

16S rRNA Sequencing

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

A

Interventions0 sources

Acarbose + High-Fiber Diet Synergy for PCOS

Research summary — not medical advice. This page synthesizes published research on a mechanism-level intervention. It is not a clinical recommendation. Consult a qualified healthcare provider before making any changes to diet, supplementation, or treatment.

Mechanisms4 sources

Acetate

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms17 sources

Acidic Microenvironment

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Microorganisms9 sources

Acinetobacter

A Gram-negative, aerobic, non-fermenting coccobacillus and a member of the ESKAPE group of priority pathogens (Enterococcus, Staphylococcus, Klebsiella, Acinetobacter, Pseudomonas, Enterobacter). Acinetobacter baumannii is among the most problematic nosocomial pathogens…

Microorganisms0 sources

Aeromonas

Aeromonas is a genus of Gram-negative, facultatively anaerobic bacteria found in aquatic environments and, increasingly recognized as an opportunistic gut pathogen. Several species — particularly Aeromonas hydrophila, A. veronii, and A. caviae — are associated with gast…

Mechanisms5 sources

AhR (Aryl Hydrocarbon Receptor)

The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor that functions as a master sensor at the intersection of gut microbial metabolism, environmental chemical exposure, and immune regulation. It is expressed broadly across immune cells, intesti…

Mechanisms5 sources

Allopregnanolone

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms3 sources

Alpha-Klotho

An anti-aging protein that has emerged as a critical mediator between heavy metal exposure and chronic kidney disease progression. Originally discovered as a gene whose mutation caused premature aging in mice, alpha-klotho is now understood to be a multifunctional prote…

Mechanisms7 sources

Alpha-Synuclein

A 140-amino-acid presynaptic protein whose misfolding into insoluble fibrils and their deposition in Lewy bodies is the defining neuropathological hallmark of parkinsons disease and the broader family of synucleinopathies (including Lewy body dementia and multiple syste…

Metals14 sources

Aluminum

A non-essential metal and the most abundant metallic element in the Earth's crust. Unlike manganese, iron, or selenium, aluminum has no known biological function in humans. Its significance in metal toxicology stems from two major concerns: proven neurotoxicity at eleva…

Diseases20 sources

Alzheimer's Disease

The most common form of dementia, affecting an estimated 55 million people worldwide and projected to triple by 2050 zhang 2024 recent advances alzheimers mechanisms trials. Characterized by progressive memory loss, cognitive decline, amyloid-beta plaques, and neurofibr…

Mechanisms7 sources

Amyloid-Beta

Amyloid-beta (Aβ) is a 36–43 amino acid peptide derived from the proteolytic cleavage of amyloid precursor protein (APP) by beta-secretase (BACE1) and gamma-secretase. Its aggregation from soluble monomers into insoluble fibrillar plaques in the brain is the defining ne…

Mechanisms8 sources

Amyloid-Beta Aggregation

The process by which soluble amyloid-beta (Aβ) monomers assemble into neurotoxic oligomers and insoluble fibrillar plaques in the brain -- the defining neuropathological event of alzheimers disease. What distinguishes WikiBiome's treatment of this process from conventio…

Microorganisms8 sources

Anaerostipes

A genus of Gram-positive obligate anaerobes in the family Lachnospiraceae (Clostridium cluster XIVa) that occupy a critical metabolic relay position in gut ecosystem stability: converting lactate to butyrate. Anaerostipes is one of the most consistently depleted genera …

Host defenses12 sources

Antimicrobial Metals

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms7 sources

Antimicrobial Resistance

The ability of microorganisms to survive and replicate in the presence of antimicrobial agents — antibiotics, antifungals, antivirals, antiparasitic drugs — at concentrations that would normally inhibit or kill them. Antimicrobial resistance (AMR) is designated by the W…

Diseases8 sources

Anxiety Disorders

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms5 sources

Arachidonic Acid

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms5 sources

Aromatase

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Metals31 sources

Arsenic

Arsenic is a metalloid and potent carcinogen (IARC Group 1) that ranks among the most widespread environmental toxicants affecting human health. An estimated 225 million people worldwide are chronically exposed through contaminated drinking water alone ghosh 2023 heavy …

Mechanisms8 sources

Aryl Hydrocarbon Receptor (AhR)

This page serves as a cross-reference point for the existing ahr concept page, which provides comprehensive coverage of AhR signaling, microbiome-derived ligands, and immune regulation. The aryl hydrocarbon receptor is a ligand-activated transcription factor that integr…

Mechanisms3 sources

Aspirin

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms3 sources

Atherosclerosis

Progressive inflammatory disease of the arterial wall characterized by lipid accumulation, immune cell infiltration, and fibrous plaque formation. In the metallomics framework, atherosclerosis sits at the convergence of three interacting systems: heavy metal toxicity, g…

Diseases11 sources

Autism Spectrum Disorder

A neurodevelopmental condition affecting approximately 1 in 36 children (US CDC 2023 estimate), characterized by differences in social communication, restricted interests, and repetitive behaviors. From a metallomics perspective, ASD presents a compelling convergence of…

Interventions0 sources

Autoimmune Protocol (AIP) Diet for Hashimoto's Thyroiditis

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms8 sources

Autophagy

Autophagy (from Greek, "self-eating") is the cellular process of degrading and recycling damaged organelles, misfolded proteins, and intracellular pathogens through lysosomal digestion. It is the cell's primary quality control mechanism -- a housekeeping system that bec…

B

Interventions3 sources

B-Cell Depletion Therapy for Multiple Sclerosis

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms4 sources

Bacteremia

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms11 sources

Bacterial Contamination Hypothesis

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms3 sources

Bacterial Vaginosis

Bacterial vaginosis (BV) is the most common vaginal infection in women of reproductive age, affecting an estimated 29% of women globally. Rather than an infection by a single pathogen, BV represents a polymicrobial dysbiotic state -- a collapse of the protective Lactoba…

Mechanisms14 sources

Bacteriophages

Viruses that exclusively infect bacteria. Bacteriophages -- phages for short -- are the most abundant biological entities on Earth, outnumbering bacteria in most environments by ratios of 1:1 to 10:1. In the human gut, the phageome represents a powerful but underexplore…

Mechanisms4 sources

BDNF (Brain-Derived Neurotrophic Factor)

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Interventions2 sources

Berberine

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Interventions0 sources

Berberine + Methimazole for Graves' Disease

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms7 sources

Beta-Glucuronidase

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms3 sources

Beta-Lactamase

Beta-lactamases are bacterial enzymes that hydrolyze the beta-lactam ring of penicillins, cephalosporins, and carbapenems, rendering them inactive. They are the most common mechanism of antibiotic resistance and a central concern in the antimicrobial resistance crisis. …

Mechanisms8 sources

Bile Acid Metabolism

Bile acids are cholesterol-derived amphipathic molecules synthesized in the liver, secreted into the duodenum, and extensively modified by gut bacteria. The host-microbe co-metabolism of bile acids creates a signaling network with profound effects on lipid metabolism, g…

Mechanisms4 sources

Bile Salt Hydrolase (BSH)

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms3 sources

Biomarkers

Measurable indicators of biological state, exposure, or disease. In the metallomics context, biomarkers span three interconnected domains: metal biomarkers (quantifying exposure and body burden), microbiome biomarkers (reflecting microbial community disruption), and met…

Metals6 sources

Bismuth

A heavy metal traditionally considered safe enough for over-the-counter gastrointestinal remedies (Pepto-Bismol, De-Nol), bismuth is re-emerging as a potent antimicrobial synergist. Its key property: Bi3+ competes with Fe3+ for binding sites on siderophores and bacteria…

Mechanisms3 sources

Blood-Brain Barrier

A selective semipermeable border formed by brain endothelial cells connected by tight junctions, pericytes, and astrocytic end-feet. The BBB restricts passage of most molecules from blood to brain, protecting the CNS from toxins, pathogens, and inflammatory mediators. M…

Interventions0 sources

Breast Milk and Human Milk Oligosaccharides (HMOs) for NEC Prevention

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms3 sources

Butyrate

The most biologically potent short-chain fatty acid (C4). Butyrate is the primary energy source for colonocytes, a histone deacetylase (HDAC) inhibitor with broad epigenetic effects, and a key anti-inflammatory mediator. Its depletion -- driven by loss of butyrate-produ…

C

Mechanisms3 sources

Cadaverine

Cadaverine (1,5-diaminopentane) is a biogenic amine produced by bacterial lysine decarboxylase — primarily by Enterobacteriaceae, Fusobacterium, and Clostridium — during proteolytic fermentation of undigested protein in the distal colon. It is a product of putrefaction …

Mechanisms4 sources

Cambialistic Enzymes

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Microorganisms5 sources

Candida tropicalis

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms3 sources

Cephalosporins

Cephalosporins are a class of beta-lactam antibiotics (five generations) that inhibit bacterial cell wall synthesis by binding penicillin-binding proteins. They are among the most prescribed antibiotic classes and among the most disruptive to the gut microbiome.

Mechanisms4 sources

Ceruloplasmin

The major copper-carrying protein in human blood, binding approximately 95% of circulating copper. Ceruloplasmin is far more than a passive transport vehicle -- it is a multicopper oxidase with ferroxidase activity, an acute-phase reactant that rises with inflammation, …

Mechanisms3 sources

Chelation Therapy

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms4 sources

Chitotriosidase

Chitotriosidase (CHIT1) is a human chitinase that degrades chitin — the structural polysaccharide of fungal cell walls, insect exoskeletons, and parasitic helminths. It is the most abundant chitinase in human serum and represents a direct arm of innate nutritional immun…

Metals32 sources

Chromium

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Diseases18 sources

Chronic Kidney Disease

A progressive loss of kidney function affecting approximately 850 million people worldwide (10–14% of adults), causing 1.2 million deaths annually. CKD is unique among diseases in this wiki because it occupies both sides of the metal-disease equation: heavy metals (Cd, …

Interventions0 sources

Citrus Fruits for Endometriosis

Research summary — not medical advice. This page synthesizes published research on a mechanism-level intervention. It is not a clinical recommendation. Consult a qualified healthcare provider before making any changes to diet, supplementation, or treatment.

Microorganisms7 sources

Clostridium symbiosum

Clostridium symbiosum is a Gram-positive, obligately anaerobic bacterium within the Clostridium cluster XIVa — a taxonomic group enriched for short-chain fatty acid (SCFA) producers and specialized bile acid metabolizers. Despite its ambiguous name (suggesting symbiotic…

Mechanisms6 sources

Co-Selection

The process by which selection pressure from one agent — typically a heavy metal — simultaneously selects for resistance to a structurally unrelated agent such as an antibiotic, because the resistance determinants are genetically linked on the same mobile genetic elemen…

Microorganisms5 sources

Collinsella

A genus of Gram-positive, obligate anaerobic bacteria within the Actinobacteria phylum (family Coriobacteriaceae) that has emerged as a consistent pathobiont enriched in cardiometabolic and autoimmune diseases. C. aerofaciens is the most studied species, with establishe…

Mechanisms3 sources

Colonization Resistance

The collective ability of the resident gut microbiome to prevent colonization by exogenous pathogens and suppress expansion of resident pathobionts. Colonization resistance is not a property of any single organism but an emergent function of the whole microbial communit…

Diseases18 sources

Colorectal Cancer

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms3 sources

Comorbidities

The co-occurrence of multiple diseases in the same individual at rates exceeding chance. Comorbidity patterns are a central puzzle in medicine -- why do IBD patients develop CVD? Why does PCOS cluster with T2D? Why do neurodegenerative diseases associate with depression…

Mechanisms5 sources

Competitive Exclusion

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Metals56 sources

Copper

An essential trace element with a striking dual nature: required for survival as a cofactor for critical enzymes (SOD1, cytochrome c oxidase, ceruloplasmin), yet toxic in excess through Fenton-like redox cycling and mis metallation of iron-sulfur clusters. Copper is ele…

Mechanisms4 sources

Copper Dysregulation

Perhaps the most pervasive metallomic finding across human disease: copper is elevated in nearly every pathological condition examined in this wiki -- cancer (pan-cancer), PCOS, cardiovascular disease, depression, schizophrenia, IBD, and rheumatoid arthritis. Simultaneo…

Mechanisms5 sources

Cortisol

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms6 sources

COX-2 (Cyclooxygenase-2)

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms4 sources

Cross-Feeding

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms4 sources

Cuproptosis

A distinct form of regulated cell death caused by excess intracellular copper binding to lipoylated proteins in the TCA cycle, first characterized by Tsvetkov et al. in Science (2022). Unlike ferroptosis (iron-dependent lipid peroxidation) or apoptosis (caspase-dependen…

Mechanisms3 sources

Curli Amyloid Fibers

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

D

Microorganisms4 sources

Debaryomyces

Debaryomyces is a genus of ascomycetous fungi, with D. hansenii being the most clinically relevant species, that represents a prominent opportunistic pathobiont enriched in inflammatory bowel disease, particularly crohns disease. Unlike many commensal fungi, Debaryomyce…

Mechanisms3 sources

Defensins

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Mechanisms4 sources

Dental Caries

This knowledge-base record is being expanded from WikiBiome’s evidence graph.

Diseases10 sources

Depression

Depression is the most prevalent mental health disorder globally, affecting over 280 million people zhu 2025 microbiota gut brain axis depression review, and one of the most metal-sensitive conditions in this wiki. It sits at the convergence of nearly every pathway cata…

Mechanisms20 sources

Developmental Metal Vulnerability: Critical Windows of Susceptibility

This page unifies the infant formula contamination, pregnancy complications, autism spectrum disorder, necrotizing enterocolitis, and neurodevelopmental toxicity threads around a single organizing insight: metal toxicity is disproportionately severe during specific deve…

Mechanisms6 sources

Dietary Arsenic Exposure

arsenic (As) is unique among dietary heavy metals because it exists in two fundamentally different forms with dramatically different toxicities: inorganic arsenic (iAs, the dangerous form) and organic arsenic (arsenobetaine, arsenosugars — largely non-toxic). Understand…

Mechanisms6 sources

Dietary Cadmium Exposure

cadmium (Cd) enters the human body primarily through food. Unlike nickel, which has high-concentration food categories that can be avoided, cadmium contamination is diffuse — embedded in staple crops, leafy greens, and grains that form the basis of most dietary patterns…

Interventions2 sources

Dietary Fiber (Cross-Condition)

Research summary — not medical advice. This page synthesizes published research on a mechanism-level intervention. It is not a clinical recommendation. Consult a qualified healthcare provider before making any changes to diet, supplementation, or treatment.

Interventions0 sources