High-intensity interval training (HIIT) enhances #muscle energy production not just by increasing the total number of #mitochondria , but by physically expanding the density of their active inner membranes, known as #cristae
#CellBiology #SportsScience #MetabolicHealth #sflorg
https://www.sflorg.com/2026/03/cbio03092601.html
High-intensity interval training boosts muscle power plants

A new study from the University of Southern Denmark and Steno Diabetes Center Odense shows that eight weeks of high-intensity interval training

Researchers map structure of mitochondria at different life stages

Mitochondria, organelles with an inner and outer membrane, are responsible for creating the energy that cells use to survive, and their morphology is key to accomplishing this task. The inner mitochondrial membrane contains folds, called cristae, that maximize the surface area available for mitochondrial energetic processes.

Phys.org
Word Search Puzzle 242

Word List : #madbrain #yashmac #moorship #unstuffy #anatase #lethean #engore #wrast #burbank #odel #tampa #pilori #cristae #stealthy #folsom #estampie #gallying #floreal

Kara Finance
Researchers uncover battery-like functions of mitochondria using super-resolution microscopes

Using new super-resolution microscopes, researchers at the University of California, Irvine and the University of Pennsylvania have for the first time observed electrical charge and discharge functions inside mitochondria isolated from cells.

Phys.org

Are there specific lipid-based mechanism for shaping inner #mitochondrial #membrane?

Itay Budin, Padmini Rangamani and coworkers at UC San Diego show that #cristae formation is controlled by #cardiolipin and #lipid saturation, in addition to protein-mediated shaping

https://www.embopress.org/doi/full/10.15252/embj.2023114054

Our study on the functional conservation of alphaproteobacterial Mic60 is out in Current Biology! This is consistent with the origin of mitochondrial cristae from alphaproteobacterial ICMs. Free access here: https://authors.elsevier.com/a/1gl4Z3QW8S2PcF
#mitochondria #cristae #purplebacteria #chromatophores #icms #symbiosis #eukaryogenesis #alphaproteobacteria #bioenergetics

The machinery that make #mitochondria the POWERHOUSE OF THE CELL™️ is found on the inner mito membrane. These membranes are folded up into structures called #cristae that increase the surface area of the membrane (to make more ATP).

Where did cristae come from? How common are they in #bacteria?

Here is a beautiful new paper from Victoria Orphan et al. showing that alphas are not the only bacteria that can make cristae. Check out these cristae in #Desulfovibrio (!)

https://journals.asm.org/doi/10.1128/mbio.01613-22