Karen Pendergrass

Karen Pendergrass, Standards Team

About

Karen Pendergrass is a microbiome researcher specializing in microbiome-targeted interventions (MBTIs). She systematically analyzes scientific literature to identify microbial patterns, develop hypotheses, and validate interventions. As the founder of the Microbiome Signatures Database, she bridges microbiome research with clinical practice. In 2012, based on her own investigative research, she became the first documented case of FMT for Celiac Disease, four years before the first published case study.

Recent Posts

2026-01-16

Scoliosis

Scoliosis, a spinal curvature over 10°, is influenced by gut microbiome variations, affecting spinal, respiratory, and cardiovascular health.

2026-01-15

Validation of Probiotics as a Microbiome-targeted intervention for Pelvic Inflammatory Disease

Probiotics offer a promising microbiome-targeted intervention (MBTI) for managing pelvic inflammatory disease (PID). By restoring beneficial Lactobacillus species and reducing inflammation, they directly counteract the microbial imbalances and immune dysregulation characteristic of PID. This article explores the therapeutic mechanisms of probiotics, their clinical validation, and how they reinforce the accuracy of PID’s microbiome signature as both a diagnostic and therapeutic tool.

2026-01-15

Probiotics as microbiome-targeted intervention for Vulvovaginal Candidiasis (VVC)

OverviewProbiotics have emerged as a promising microbiome-targeted intervention (MBTI) for vulvovaginal candidiasis (VVC), addressing both microbial imbalances and the host’s immunological and inflammatory mechanisms. By restoring a healthy Lactobacillus-dominated vaginal microbiota, probiotics directly counteract dysbiosis linked to VVC, while their bioactive metabolites such as lactic acid and bacteriocins suppress Candida overgrowth and modulate local immune […]

2026-01-15

STOP Advisory: Reevaluating Zinc Supplementation in Endometriosis

Excessive zinc intake may worsen endometriosis by activating estrogen receptors, disrupting immune function, and altering the microbiome. A large NHANES study found that intake above 14 mg/day significantly increases endometriosis risk. With many supplements exceeding this threshold, routine zinc supplementation may contribute to disease progression rather than prevention, prompting a Suggested Termination of Practice (STOP).

2026-01-15

Research Fast-Track Justification: Tinidazole for Endometriosis

Tinidazole shows strong alignment with endometriosis microbiome signatures by targeting MMAs such as Prevotella and Fusobacterium. Its pharmacological profile and potential for microbial realignment make it a compelling candidate for fast-tracked translational research and microbiome-targeted intervention.

2026-01-15

Validation of Maltose Gel (Prebiotic) as a Microbiome-Targeted Intervention for Bacterial Vaginosis

Prebiotic Maltose Gel has emerged as a promising microbiome-targeted therapy for bacterial vaginosis (BV), restoring vaginal health by selectively enhancing Lactobacillus populations and suppressing BV-associated anaerobes. This dual-action intervention not only validates the gel’s therapeutic efficacy but also confirms the accuracy of BV’s microbiome signature as a clinical marker.

2026-01-15

Validation of Probiotic Therapy as a Microbiome-Targeted Intervention for Bacterial Vaginosis

Probiotic interventions, particularly those involving Lactobacillus crispatus and Saccharomyces cerevisiae, restore balance to the vaginal microbiome in bacterial vaginosis (BV). By reducing dominant anaerobes like Gardnerella vaginalis and promoting recolonization with protective Lactobacillus, these therapies validate both their role as microbiome-targeted interventions (MBTIs) and the diagnostic accuracy of the BV microbiome signature.

2026-01-15

Validation of Essential Oils as a Microbiome-Targeted Intervention for Biofilms

Essential oils (EOs) are emerging as powerful microbiome-targeted interventions for biofilm-associated infections (BAIs). Backed by preclinical evidence, EOs disrupt biofilm formation, reduce inflammation, and restore microbial balance. This validation supports their dual role in treating BAIs and confirming the microbiome signature linked to the condition.

2026-01-15

Validation of Bovine Lactoferrin as a Microbiome-Targeted Intervention for Bacterial Vaginosis

Bovine lactoferrin has emerged as a promising microbiome-targeted intervention (MBTI) for bacterial vaginosis (BV). Clinical and preclinical studies confirm its dual-action ability to restore Lactobacillus dominance and suppress BV-associated pathogens like Gardnerella and Prevotella. These microbial shifts, combined with anti-inflammatory effects, validate both the efficacy of bovine lactoferrin and the diagnostic accuracy of the BV microbiome signature.

2026-01-15

Metallomics in Neurodegenerative Diseases: A mini-review

This review highlights how neurodegenerative diseases like Alzheimer’s disease (AD), Parkinson’s disease (PD), and dementia with Lewy bodies (DLB) exhibit disease-specific metallomic signatures, with copper depletion as a shared feature. Metal imbalances reflect both cause and consequence in neurodegeneration and may offer diagnostic potential when captured through region-specific elemental analysis.

2026-01-15

Validation of curcumin and fecal microbiota transplantation as microbiome-targeted intervention for Polycystic ovary syndrome (PCOS)

OverviewCurcumin, a polyphenolic compound derived from Curcuma longa, and fecal microbiota transplant (FMT) have shown promise in treating polycystic ovary syndrome (PCOS), a condition often linked with gut dysbiosis. FMT, which restores a balanced microbiome, has been proposed as a strategy to alleviate symptoms of PCOS by modulating microbial composition and reducing inflammation.[1] Curcumin’s anti-inflammatory […]

2026-01-15

Validation of Cannabidiol (CBD) as a microbiome-targeted intervention for Bacterial Vaginosis

Cannabidiol (CBD) shows promise as a microbiome-targeted intervention for bacterial vaginosis (BV). It reduces Gardnerella vaginalis viability, disrupts biofilms, and promotes Lactobacillus restoration. CBD’s antimicrobial, anti-inflammatory, and antioxidant properties support its effectiveness, reinforcing the BV microbiome signature’s clinical accuracy and its potential as a viable treatment option.