WikiBiomeThe human microbiome encyclopediaRanked matches across titles, topics, categories, and article introductions.
Multi-strain probiotic supplementation with L. acidophilus, B. longum, and B. bifidum has shown promise in slowing CKD progression through anti-inflammatory mechanisms, though its effect on uremic toxins remains unconfirmed.
Live microorganisms that, when administered in adequate amounts, confer a health benefit on the host. In the context of this wiki, probiotics are relevant both as therapeutic agents for metal-related diseases and as mediators of gut metal microbiome interactions. Their …
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.
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.
This knowledge-base record is being expanded from WikiBiome’s evidence graph.
Probiotic supplementation targeting the dysbiosis-thyroid axis aims to restore Lactobacillus and Bifidobacterium populations depleted in Hashimoto's thyroiditis, with potential downstream effects on iodine and selenium metabolism.
Probiotic supplementation targeting depleted Bifidobacterium and Lactobacillus in the postpartum period aims to restore gut-brain axis signaling disrupted during the dramatic hormonal shifts following delivery.
Co-administration of multi-strain probiotics (Bifidobacterium, Lactobacillus, Enterococcus, Bacillus cereus) alongside PPI therapy to mitigate PPI-induced gut dysbiosis. This addresses the treatment paradox: PPIs improve esophageal inflammation but worsen gut microbial …
This knowledge-base record is being expanded from WikiBiome’s evidence graph.
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.
This knowledge-base record is being expanded from WikiBiome’s evidence graph.
Research summary -- not medical advice. This page synthesizes published research on why a commonly recommended intervention may be counterproductive in this specific clinical context. Consult a qualified healthcare provider before making any changes to treatment.
This knowledge-base record is being expanded from WikiBiome’s evidence graph.
Probiotics protect the gut barrier from heavy metal toxicity. Zhai et al. (2016) demonstrated that L. plantarum CCFM8610 protected intestinal epithelial cells from cadmium through a four-part mechanism: metal sequestration in the gut lumen, alleviation of oxidative stre…
Co-supplementation of vitamin D3 (50,000 IU every 2 weeks) + 4-strain probiotic (L. acidophilus, B. bifidum, L. reuteri, L. fermentum; 8 x 10^9 CFU/day) for 12 weeks, adjunctive to antipsychotics. This is the strongest single-trial result for a microbiome-targeted inter…
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.
Actinobacteria (reclassified as Actinomycetota in 2021) is a major Gram-positive, high-GC-content bacterial phylum with remarkable ecological breadth. In the gut, it typically comprises 1-10% of the community -- a distant third behind firmicutes and bacteroidetes -- but…
A Gram-negative, obligate anaerobic, mucin-degrading bacterium that colonizes the intestinal mucus layer and has emerged as one of the most important next-generation probiotics. A. muciniphila is consistently depleted in disease states associated with metal dyshomeostas…
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…
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 …
A Gram-positive, aerobic to facultatively anaerobic, spore-forming genus that bridges environmental and human microbiology. The genus encompasses both beneficial species (B. subtilis, B. coagulans as probiotics) and pathogens (B. cereus causing food poisoning, B. anthra…
BDNF is the primary neurotrophin supporting neuronal survival, synaptic plasticity, and memory formation in the hippocampus and prefrontal cortex. Reduced BDNF is a consistent finding in depression, schizophrenia, and neurodegeneration. The gut microbiome modulates BDNF…
Bifidobacteriaceae is the family containing bifidobacterium and related genera (alloscardovia). It is the dominant family in the healthy infant gut and a significant commensal family in adults. Family-level depletion is documented in ASD (marked reduction of Actinobacte…
Bifidobacteriales is an order of Gram-positive, strictly anaerobic bacteria within the phylum Actinobacteria. The order contains the family Bifidobacteriaceae, which includes the genus Bifidobacterium — among the most widely studied probiotic organisms and a hallmark of…
A genus of Gram-positive, obligate anaerobic bacteria that dominate the infant gut microbiome and remain important commensals throughout life. Bifidobacterium species are distinctive in the metallomics context because some species possess Ni-dependent urease -- an unusu…
Bifidobacterium adolescentis is a Gram-positive, obligate anaerobic species within the phylum Actinobacteria and the dominant Bifidobacterium species in the adult human gut. It is a specialist degrader of resistant starch and dietary fiber, producing acetate and lactate…
Bifidobacterium bifidum is an obligate anaerobic, Gram-positive species that specializes in human milk oligosaccharide (HMO) and mucin glycan degradation. It is one of the earliest colonizers of the infant gut and a widely used probiotic species.
Bifidobacterium breve is a Gram-positive, obligate anaerobic species within the phylum Actinobacteria, predominantly found in the infant gut and breast milk. It is among the earliest colonizers of the neonatal intestine and plays a key role in human milk oligosaccharide…
Bifidobacterium longum is a Gram-positive, obligate anaerobic bacterium and one of the most important commensal species in human health from infancy through old age. Its subspecies — B. longum subsp. longum (adult gut), B. longum subsp. infantis (infant gut, HMO degrade…
Bifidobacterium longum subsp. infantis is the current, validly published name for NCBITaxon:1682. Bifidobacterium infantis Reuter 1963 is its basionym, not a separate current species ncbi taxonomy bifidobacterium longum subsp infantis lpsn bifidobacterium longum subsp i…
A genus of Gram-positive, strictly anaerobic, butyrate-producing bacteria in the order Clostridiales (phylum Firmicutes). The type species, Butyricicoccus pullicaecorum, was originally isolated from chicken caecal content but has since been identified as a significant m…
Cadmium is a toxic non-essential heavy metal (IARC Group 1 carcinogen) with a biological half-life of 17--30 years in mammals, primarily accumulating in the renal cortex via proximal tubular reabsorption of the Cd-metallothionein complex rasin 2025 cadmium exposure heal…
Cerebral palsy (CP) is the most common motor disability in childhood, affecting 2-3 per 1,000 live births allen 2021 multi organ dysfunction cerebral palsy. Characterized by non-progressive disturbances in movement and posture arising from injury to the developing brain…
Clostridium butyricum is a spore-forming, obligate anaerobic, Gram-positive bacterium and one of the leading next-generation probiotic candidates. The MIYAIRI 588 strain (CBM 588) is approved as a pharmaceutical probiotic in Japan and has expanding clinical evidence acr…
Clostridium perfringens is a Gram-positive, strictly anaerobic, spore-forming bacterium infamous for causing gas gangrene, food poisoning, and necrotizing enterocolitis (NEC) in premature infants. It is one of the most widely distributed pathogenic bacteria in nature, f…
Colorectal cancer (CRC) is the third most common cancer worldwide and the second leading cause of cancer death. Over 90% of cases are sporadic, driven by a complex interplay between genetic predisposition, dietary habits, gut microbiome composition, and environmental ex…
Competitive exclusion is the ecological principle that two species competing for the same limiting resource cannot coexist indefinitely — one will outcompete the other. In the gut microbiome, competitive exclusion is the primary mechanism by which commensal bacteria pre…
A chronic, relapsing-remitting inflammatory bowel disease (IBD) characterized by transmural inflammation of the gastrointestinal tract, most commonly affecting the terminal ileum and colon but capable of involving any segment from mouth to anus zhang 2017 intestinal mic…
Cross-feeding (syntrophy) is the metabolic cooperation in which one organism's waste product becomes another's substrate. It is the cooperative counterpart to competitive exclusion — rather than competing for the same resource, organisms partition metabolic labor into s…
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…
Dietary fiber supplementation (resistant starch, inulin, arabinoxlan oligosaccharides, or whole-food fiber) to shift gut fermentation from proteolytic to saccharolytic, reducing the two key protein-bound uremic toxins (indoxyl sulfate and p-cresyl sulfate) that drive CK…
iron occupies a unique position among dietary metals: it is both an essential nutrient and a selective pressure that shapes the gut microbial ecosystem. The form, quantity, and bioavailability of dietary iron determines which microbes thrive and which are competitively …
This page identifies the contradictions and clinical dilemmas that become visible only when the 236 source pages in this wiki are read together. Each paradox describes a situation where evidence-based dietary or supplementation advice -- advice that is correct for most …
Dopamine is a catecholamine neurotransmitter central to reward, motivation, motor control, and executive function. Its synthesis is directly dependent on iron -- the rate-limiting enzyme tyrosine hydroxylase (TH) requires Fe2+ as a cofactor. This iron dependency makes d…
Disruption of the normal composition and metabolic function of microbial communities, particularly the gut microbiome. In the metallomics context, dysbiosis is both a consequence of metal toxicity and an amplifier of further disease -- creating vicious cycles where meta…
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.
Endometriosis is a chronic estrogen-dependent inflammatory condition affecting approximately 10% of reproductive-age women, characterized by the growth of endometrial-like tissue outside the uterus colonetti 2023 gut vaginal microbiota endometriosis meta analysis. The c…
Faecalibacterium is a genus of obligate anaerobic, Gram-positive bacteria in the family Ruminococcaceae (phylum Firmicutes). It is the most abundant genus in the healthy human colon (5–15% of fecal bacteria) and its depletion is the single most reproducible microbiome f…
The most abundant bacterium in the healthy human colon (5-15% of total fecal microbiota), F. prausnitzii is the premier butyrate producer in the gut and a cornerstone of anti-inflammatory intestinal homeostasis. Its depletion is one of the most consistent microbiome sig…
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.
The transfer of processed stool from a healthy donor into a recipient's gastrointestinal tract to restore a disrupted microbial community. FMT is the most direct form of microbiome intervention -- replacing the entire community rather than supplementing individual strai…
Fibromyalgia (FM) is a chronic pain syndrome affecting 2-4% of the global population Heidari et al. 2017, characterized by widespread musculoskeletal pain, fatigue, cognitive dysfunction ("fibro fog"), and sleep disturbances. Conventionally attributed to central sensiti…
A group 13 post-transition metal (atomic number 31) with no known biological function in any organism — yet one of the most promising antimicrobial metals precisely because of what it cannot do. Ga3+ is nearly identical to Fe3+ in ionic radius (0.62 Å vs 0.645 Å) and co…
Alphabetical definitions of specialist terms used throughout this wiki. Where a full concept page exists, the term links to it. --- AhR (aryl hydrocarbon receptor) -- A ligand-activated transcription factor that senses microbial metabolites (especially indoles from tryp…
The relationship between heavy metals and the gut microbiota is bidirectional: metals reshape microbial community composition and metabolic output, while the microbiota modulates metal absorption, speciation, and toxicity. The gut microbiota serves as the first line of …
Hashimoto's thyroiditis (HT) is the most common autoimmune disease globally and the leading cause of hypothyroidism. Chronic lymphocytic infiltration of the thyroid gland progressively destroys follicular architecture, reducing thyroid hormone output. Prevalence is 5-10…
A genus of Gram-positive, strictly anaerobic bacteria in the family Erysipelotrichaceae (phylum Firmicutes) that is emerging as one of the most consistently protective gut commensals in human disease. Holdemanella is depleted across a striking range of conditions -- inf…
Early-life supplementation with L. rhamnosus GG (LGG) before 27 days of age reduced the risk of beta-cell autoimmunity in genetically at-risk infants, as demonstrated in the TEDDY study (The Environmental Determinants of Diabetes in the Young).
Lactobacillaceae is the family containing the genus lactobacillus and related genera. It is the dominant family in the healthy vaginal microbiome and a significant family in the gut. Family-level depletion is reported across schizophrenia szeligowski 2020 gut microbiome…
A genus of Gram-positive, facultatively anaerobic lactic acid bacteria (LAB) that are among the most extensively studied probiotics. In the metallomics context, Lactobacillus species are critical for two reasons: they actively detoxify heavy metals through binding and s…
Lactobacillus acidophilus is one of the most widely used probiotic species, with clinical trial evidence spanning multiple conditions. It is a component of many multi-strain probiotic formulations and has been tested in RCTs for schizophrenia, breast cancer chemotherapy…
Lactobacillus gasseri is a vaginal and gut commensal that defines Community State Type II (CST-II) in the vaginal microbiome. It is a common probiotic species with anti-obesity properties in clinical trials.
Lactobacillus plantarum is one of the most versatile probiotic species — found in fermented foods (kimchi, sauerkraut, sourdough), the human gut, and the vaginal microbiome. It has the largest genome among Lactobacillus species (~3.3 Mb), encoding extensive stress toler…
Lactobacillus reuteri is one of the most extensively studied probiotic species, notable for its production of neuroactive metabolites (GABA, histamine) and its effects on the hypothalamic-pituitary-gonadal axis (testosterone, oxytocin).
Lactobacillus rhamnosus is a Gram-positive, facultatively anaerobic lactic acid bacterium and one of the most extensively studied probiotic species. The GG strain (ATCC 53103), isolated from a healthy human intestinal tract by Gorbach and Goldin in 1983, is the single m…
Lactococcus lactis is a Gram-positive, facultatively anaerobic, lactic acid bacterium best known as the workhorse of the dairy fermentation industry. It holds GRAS (Generally Recognized As Safe) status and has emerged as a versatile platform for probiotic and therapeuti…
The combination of lactoferrin + L. rhamnosus GG (LGG) ranked SUCRA 95.7% for lowest NEC rate in a network meta-analysis of 27 RCTs (n=9,501). This intervention exemplifies multiple Karen's Brain primitives operating synergistically.
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.
Multi-strain synbiotic supplementation (probiotic + prebiotic) as adjunctive therapy alongside antipsychotics. This is the strongest validated microbiome-targeted intervention for schizophrenia, with both psychiatric symptom improvement and metabolic benefit demonstrate…
Multiple sclerosis (MS) is a chronic autoimmune demyelinating disease of the central nervous system, with a global prevalence of approximately 2.8 million attfield 2022 immunology ms nature review. The conventional framing centers on genetic susceptibility (HLA-DRB115:0…
Necrotizing enterocolitis (NEC) is the most common and lethal gastrointestinal emergency in premature infants, affecting 5-12% of very low birth weight neonates (<1500 g) with mortality rates of 20-30%. Characterized by intestinal inflammation, necrosis, and perforation…
The NLRP3 inflammasome is a host innate-immune signaling complex that connects cellular danger signals to caspase-1 activation. In the canonical pathway represented in WikiBiome's evidence vault, caspase-1 processes the inflammatory cytokines IL-1beta and IL-18 and clea…
A chronic metabolic condition affecting over 1 billion people globally, characterized by excess adipose tissue accumulation, systemic low-grade inflammation, and gut microbiome disruption pendergrass 2026 heavy metals obesity epidemic. From a metallomics perspective, ob…
A family of Gram-positive obligate anaerobes (formerly classified as the genus Oscillospira, now reclassified into Oscillibacter and related genera within Oscillospiraceae) that serve as keystone butyrate producers in the healthy human distal colonic microbiota (Konikof…
Ovarian cancer is the most lethal gynecological malignancy, with approximately 314,000 new cases and 207,000 deaths annually worldwide. Its poor prognosis stems largely from late-stage diagnosis (70% at stage III/IV) and the development of chemoresistance. From a metall…
Oxidative stress is the imbalance between the production of reactive oxygen and nitrogen species (ROS/RNS) and the capacity of biological antioxidant defense systems to detoxify them. It is the single most commonly invoked mechanism across metal toxicology in this wiki,…
Pancreatic cancer is the fifth leading cause of cancer death in Western nations, with rising incidence globally. Pancreatic ductal adenocarcinoma (PDAC) accounts for over 90% of cases. Five-year survival remains approximately 12%, owing to late-stage diagnosis, aggressi…
Pancreatitis is inflammation of the pancreas, occurring in acute (AP) and chronic (CP) forms. Acute pancreatitis ranges from mild self-limiting disease to severe necrotizing pancreatitis with 20-30% mortality. Chronic pancreatitis is a risk factor for pancreatic cancer …
The second most common neurodegenerative disease, affecting over 10 million people worldwide dorsey 2018 parkinsons incidence meta analysis. Characterized by progressive loss of dopaminergic neurons in the substantia nigra, alpha-synuclein aggregation (Lewy bodies), and…
A metabolic-endocrine disorder affecting 6-20% of reproductive-age women worldwide, characterized by hyperandrogenism, oligo/anovulation, and polycystic ovary morphology (Rotterdam criteria) barrea 2019 mediterranean diet pcos. PCOS is the leading cause of anovulatory i…