Tag Archives: microbiome

A Bile Acid (TBMCA) Is Involved In A Mechanism That Reduces Muscle Mass And Strength

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Papers referenced in the video:

Depletion of gut microbiota induces skeletal muscle atrophy by FXR-FGF15/19 signalling https://pubmed.ncbi.nlm.nih.gov/33783283/

Gut microbiota regulates bile acid metabolism by reducing the levels of tauro-beta-muricholic acid, a naturally occurring FXR antagonist https://pubmed.ncbi.nlm.nih.gov/23395169/

Fibroblast growth factor 19 regulates skeletal muscle mass and ameliorates muscle wasting in mice https://pubmed.ncbi.nlm.nih.gov/28650457/

AGE Products Impact Lifespan: Impact Of Hyperglycemia, Kidney Function, And The Microbiome

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Papers referenced in the video:

Oral glycotoxins determine the effects of calorie restriction on oxidant stress, age-related diseases, and lifespan https://pubmed.ncbi.nlm.nih.gov/18599606/

Reduced oxidant stress and extended lifespan in mice exposed to a low glycotoxin diet: association with increased AGER1 expression https://pubmed.ncbi.nlm.nih.gov/17525257/

Gut microbiota drives age-related oxidative stress and mitochondrial damage in microglia via the metabolite N 6-carboxymethyllysine https://pubmed.ncbi.nlm.nih.gov/35241804/

Plasma Carboxymethyl-Lysine, an Advanced Glycation End Product, and All-Cause and Cardiovascular Disease Mortality in Older Community-Dwelling Adults https://pubmed.ncbi.nlm.nih.gov/19682127/

Advanced glycation end products and their circulating receptors predict cardiovascular disease mortality in older community dwelling women https://pubmed.ncbi.nlm.nih.gov/19448391/

Acute Hyperglycemia Causes Intracellular Formation of CML and Activation of ras, p42/44 MAPK, and Nuclear Factor KappaB in PBMCs https://pubmed.ncbi.nlm.nih.gov/12606501/

Experimental Hyperglycemia Alters Circulating Concentrations and Renal Clearance of Oxidative and Advanced Glycation End Products in Healthy Obese Humans https://pubmed.ncbi.nlm.nih.gov/30823632/

Novel associations between blood metabolites and kidney function among Bogalusa Heart Study and Multi-Ethnic Study of Atherosclerosis participants https://pubmed.ncbi.nlm.nih.gov/31720858/

Serum Carboxymethyl-lysine, a Dominant Advanced Glycation End Product, is Associated with Chronic Kidney Disease: the Baltimore Longitudinal Study of Aging https://pubmed.ncbi.nlm.nih.gov/19853477/

Which Gut Bacteria Are Associated With Poor Health, And How Can We Limit Them?

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Papers referenced in the video:

Human microbiome: an academic update on human body site specific surveillance and its possible role https://pubmed.ncbi.nlm.nih.gov/32524…

Taxonomic signatures of cause-specific mortality risk in human gut microbiome https://pubmed.ncbi.nlm.nih.gov/33976…

The Role of Short-Chain Fatty Acids From Gut Microbiota in Gut-Brain Communication https://pubmed.ncbi.nlm.nih.gov/32082…

Inhibiting antibiotic-resistant Enterobacteriaceae by microbiota-mediated intracellular acidification https://pubmed.ncbi.nlm.nih.gov/30563…

Short chain fatty acids in human large intestine, portal, hepatic and venous blood https://pubmed.ncbi.nlm.nih.gov/3678950/

Age-Associated Changes in Gut Microbiota and Dietary Components Related with the Immune System in Adulthood and Old Age: A Cross-Sectional Study https://pubmed.ncbi.nlm.nih.gov/31370…

The microbiome of professional athletes differs from that of more sedentary subjects in composition and particularly at the functional metabolic level https://pubmed.ncbi.nlm.nih.gov/28360…

Exercise Alters Gut Microbiota Composition and Function in Lean and Obese Humans https://pubmed.ncbi.nlm.nih.gov/29166..

Ergothioneine: A ‘Longevity Vitamin’ With Potential Benefits For Age-Related Outcomes?

Papers referenced in the video:

Dietary Thiols: A Potential Supporting Strategy against Oxidative Stress in Heart Failure and Muscular Damage during Sports Activity: https://www.ncbi.nlm.nih.gov/pmc/arti…

Ergothioneine levels in an elderly population decrease with age and incidence of cognitive decline; a risk factor for neurodegeneration? https://pubmed.ncbi.nlm.nih.gov/27444…

Is ergothioneine a ‘longevity vitamin’ limited in the American diet? https://www.ncbi.nlm.nih.gov/pmc/arti…

Frailty markers comprise blood metabolites involved in antioxidation, cognition, and mobility: https://pubmed.ncbi.nlm.nih.gov/32295…

Ergothioneine is associated with reduced mortality and decreased risk of cardiovascular disease: https://pubmed.ncbi.nlm.nih.gov/31672…

Ergothioneine – a diet‐derived antioxidant with therapeutic potential: https://febs.onlinelibrary.wiley.com/…

Ergothioneine, a metabolite of the gut bacterium Lactobacillus reuteri, protects against stress-induced sleep disturbances: https://www.nature.com/articles/s4139…

Gut Bacteria Boost Host NAD Metabolism

Papers referenced in the video:

Bacteria Boost Mammalian Host NAD Metabolism by Engaging the Deamidated Biosynthesis Pathway: https://pubmed.ncbi.nlm.nih.gov/32130883/

CD38 Dictates Age-Related NAD Decline and Mitochondrial Dysfunction through an SIRT3-Dependent Mechanism: https://pubmed.ncbi.nlm.nih.gov/27304511/

Aerobic and resistance exercise training reverses age-dependent decline in NAD + salvage capacity in human skeletal muscle: https://pubmed.ncbi.nlm.nih.gov/31207144/

The Gut Microbiota Affects Health and Aging (Interview with Modern Healthspan): Parts I-VIII

Here’s the first interview clip (of a series) with Modern Healthspan on YouTube where we discuss the role of the microbiome on health and longevity:

Part II: Skin, Oral Microbiome & Immune System

Part III: Optimal Health with Soluble Fiber

Part IV – Microbial Burden & Hallmarks of Aging

Part V: Spermidine & Immune Support

Part VI: Optimal HDL & LDL

Part VII: Nuts, Seeds & Saturated Fat Intake

Part VII: My Exercise Approach for Longevity

Paper Discussion: Short-Chain Fatty Acids and Lipopolysaccharide as Mediators Between Gut Dysbiosis and Amyloid Pathology in Alzheimer’s Disease

In the video below, Steve Hill from Lifespan.io and I talk about findings from a recent paper (https://content.iospress.com/articles/journal-of-alzheimers-disease/jad200306) that supports a role for the gut microbiome on Alxheimer’s disease. Check it out!

The Impact Of The Microbiome On Lifespan

Germ-free mice (animals don’t have a microbiome) live longer than microbiome-containing mice, but it’s impractical for people to live in a bubble for their entire lifespan. As a more practical approach, which microbiome-derived factors impact lifespan, and can they be modified?

Dietary supplementation with acarbose increases lifespan, and one reason for that may involve reduced circulating levels of glucose, but the other side of that story involves increased gut bacterial production of short chain fatty acids (SCFAs). Whether acarbose will increase lifespan in people is unknown, and with the goal of increasing lifespan, are there other ways to increase SCFAs?

The Gut-Muscle Axis in Older Adults

How does the gut microbiome and its metabolic products affect muscle mass, muscle composition, and physical function? In this presentation, I review the evidence, then I present recent data from our group.