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

2025-03-18

The Microbiome in Precision Medicine: The Way Forward

Joseph F. Petrosino’s editorial highlights the microbiome’s pivotal role in precision medicine, emphasizing its potential to advance personalized diagnostics and therapeutic strategies. The integration of microbiome signatures with other ‘omics’ data, such as genomics and metabolomics, offers a comprehensive understanding of disease mechanisms and tailored treatments. Petrosino draws parallels between microbiome signature research and genomics, […]

2025-03-18

The impact of photobiomodulation of major salivary glands on caries risk

The study explored the impact of photobiomodulation therapy using different types of light on the major salivary glands and its subsequent effects on caries risk factors in individuals with high risk for dental caries. The therapy modalities tested included polarized polychromatic light, continuous LED light, and pulsed LED light, each aiming to […]

2025-03-18

The influence of nickel on intestinal microbiota disturbances

Excess nickel disrupts gut microbiota, promoting dysbiosis and contributing to conditions like obesity and systemic nickel allergy syndrome (SNAS). Probiotics and nickel-restricted diets show promise in mitigating these effects, underscoring the need for further research and clinical intervention.

2025-03-18

The gut microbiota–brain axis in neurological disorder

The review paper provides a comprehensive overview of the gut microbiota-brain axis (GBA) and its role in various neurological disorders. Specifically, the paper examined the intricate bidirectional communication between the gut microbiota (GM) and the central nervous system (CNS), exploring how dysbiosis (an imbalance in the gut microbiota) contributes to the pathogenesis […]

2025-03-18

The gut microbiota and endometriosis: From pathogenesis to diagnosis and treatment

The study reviewed the relationship between the gut microbiota and endometriosis, focusing on how the gut microbiota may influence the pathogenesis, diagnosis, and potential treatment of endometriosis through various mechanisms such as estrogen modulation, immune response, and inflammation. Who was reviewed? The review did not involve specific individuals as subjects of […]

2025-03-18

The Female Vaginal Microbiome in Health and Bacterial Vaginosis

This review in Frontiers in Cellular and Infection Microbiology examines the vaginal microbiome’s role in health and disease, particularly bacterial vaginosis (BV). It highlights the shift from a Lactobacillus-dominant microbiome in health to a dysbiotic state in BV, linked to increased risk of STIs, PID, and preterm birth. It also discusses current diagnostic and treatment limitations, emphasizing advanced molecular techniques and innovative therapies like probiotics and vaginal microbiota transplantation (VMT) for better management and improved reproductive health outcomes.

2025-03-18

The effect of hyperbaric oxygen therapy in the inflammatory response in a mouse model of endometriosis: An experimental study

This study highlights hyperbaric oxygen therapy’s (HBOT) role in reducing inflammation and NFκB expression in a mouse model of endometriosis. The findings suggest HBOT as a promising non-invasive treatment for managing endometriosis-associated inflammation, targeting hypoxia-induced molecular pathways and offering potential microbiome benefits through reduced inflammatory burden.

2025-03-18

Somatic stem cells and their dysfunction in endometriosis

The study focused on the role of somatic stem cells (SSCs), including endometrial stem cells (EnSCs) and bone marrow-derived mesenchymal stem cells (MSCs), in the pathogenesis of endometriosis. This was conducted through a comprehensive literature review, including in vitro experiments and studies on animal models and human tissue analyses. The research examined the […]

2025-03-18

Role of Some Heavy Metals in Rheumatoid Arthritis

This study explored the association between rheumatoid arthritis and heavy metal exposure, identifying a significant deficiency of copper in RA patients. No significant correlations were found for zinc, cobalt, lead, or nickel. The findings suggest that copper deficiency may play a role in RA, warranting further research on trace metals in autoimmune diseases.

2025-03-18

Reversal of Autism Symptoms among Dizygotic Twins through a Personalized Lifestyle and Environmental Modification Approach: A Case Report and Review of the Literature

The study showed dramatic, sustained improvements in ASD symptoms in dizygotic female twins through a personalized, multidisciplinary approach targeting modifiable lifestyle and environmental factors, including microbiome-targeted interventions. These included dietary changes, gluten-free and casein-free diets, and supplements like omega-3 fatty acids and probiotics to support gut health and overall wellbeing.

2025-03-18

Reproductive Microbiomes: Using the Microbiome as a Novel Diagnostic Tool for Endometriosis

The study aimed to investigate how endometriosis affects the uterine and cervical bacterial communities. Utilizing next-generation amplicon sequencing of the bacterial 16S rRNA gene, the research sought to identify alterations in these microbiomes associated with endometriosis and to determine if specific bacterial taxa within the cervix could help diagnose active endometriosis, potentially […]

2025-03-18

Remission of Endometriosis by Hyperbaric Oxygen Treatment in Rats

This study demonstrates hyperbaric oxygen therapy (HBOT) achieves complete remission of endometriotic lesions in a rat model by reducing hypoxia, inflammation, and TNF-α levels. While HBOT shows potential as a non-invasive therapy for endometriosis, further studies are needed to validate its impact on microbiome modulation.