Nick Krontiris Profile picture
Jun 14 12 tweets 4 min read Twitter logo Read on Twitter
This one provides genetically proxied evidence to support that FGF21 signaling may reduce chronic kidney disease risk, have favorable effects across a broad range of renal outcomes and cardiometabolic risk factors. Image
- Fibroblast growth factor 21 (FGF21) is a fasting or stress inducible metabolic hormone produced mainly in the liver.

It plays important roles in regulating glucose and lipid homeostasis, as well as bone homeostasis.
- This study leveraged a missense genetic variant, rs739320 in the FGF21 gene, that associates with magnetic resonance imaging-derived liver fat as a clinically validated and biologically plausible instrumental variable for studying the effects of FGF21 analogs.
- Performing Mendelian randomization, the study ascertained associations between instrumented FGF21 and kidney phenotypes, cardiometabolic disease risk factors, as well as the circulating proteome and metabolome.
- Analyses provided new genetic evidence that FGF21 signaling may reduce CKD risk and have favorable effects across a broad range of renal outcomes, including eGFR, urinary sodium excretion, BUN and UACR.
- Genetic support to support the notion that FGF21 may have a beneficial effect on fasting insulin and apolipoprotein B was also found.
- In line with previous Mendelian randomization studies, a favorable FGF21 effect was observed on waist-to-hip ratio, blood pressure, LDL-c and triglycerides.
- In contrast, a lack of association with HDL-c contrasts findings from studies and trials. Image
- Proteomics analyses supported a similar reduction in proteins involved in triglyceride and fat metabolism, e.g., pancreatic lipase-related protein 2, pancreatic triacylglycerol lipase, lipase cofactor colipase, and cholecystokinin. Image
- Interestingly, an association between higher genetically proxied FGF21 and lower alcohol consumption and higher protein intake was also observed.
For more about FGF21 from me:

twitter.com/search?q=FGF21…
Renoprotective effects of genetically proxied fibroblast growth factor 21: Mendelian randomization, proteome-wide and metabolome-wide association study (open access)

doi.org/10.1016/j.meta…

#nutrition #diet #MetabolicSyndrome #CKD #FGF21

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More from @nick_krontiris

Jun 16
This systematic review finds that overall the literature suggests that daily low-carbohydrate intake is not likely to negatively affect psychological well-being, or that this type of diet is worse than any other in this respect. Image
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Jun 15
The findings of this one in mice suggest that dietary nitrate is capable of preserving mitochondrial bioenergetics during skeletal muscle disuse, and maintain mitochondrial-specific function during short-term (but not long-term) limb immobilization. Image
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Jun 15
Here, compared with men at the lowest end of the normal BMI spectrum, increased risk for an early acute coronary event was detectable already within the normal range of BMI at the age of 18 years, increasing to >5‐fold in the highest weight category at the age of 40 years. Image
- Coronary heart disease remains the dominant cause of death worldwide.
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Jun 15
This one found that among patients with newly diagnosed diabetes, a reduction in exercise frequency was related to increases in the risk of pneumonia and upper respiratory tract infection in Korean adults. Image
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Jun 15
Here, a triple agonist that interacts with GLP-1, neuropeptide Y1&Y2 receptors, regulated insulin secretion in rat and human pancreatic islets, promoted insulin-independent Y1-R-mediated glucose uptake in rat muscle tissue ex vivo and reduced food intake and body weight in rats. Image
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This one in mice suggests that chronic inflammation, and specifically IL-6 levels, may lead to increases in frailty and physical decline due to skeletal muscle changes that are mediated by changes in mitochondrial regulation and autophagy. Image
- This study focuses on a humanized inducible IL-6 model "due to the significant homology between mouse and human IL-6 at the amino acid level".
- The goal of this study was to better understand the role of IL-6 in frailty.
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