Daily Archives: May 30, 2018

Crista junctions in mitochondria

Electron micrographs of liver, Glutamate cysteine ligase catalytic subunit KO mice, Mitochondria: electron microscopy, The cell: images, Ultimate order, the cell

I am trying to visualize crista junctions in mitochondria in the liver (mammalian). These might be visible here, in a KO mouse which has increased oxidative stress (previous posts). It looks to me like there is a small consistent area at the place around cristae approaching the outer mitochondrial membrane that looks “different”?  Find the 100nm markers (vertical at the edge of a crista and horizontal by the red dot over on the right hand side) are an approximate marker for the size of a cytoplasmic ribosome (27nm) and calculation for 100nm from that.

Cristae in this particular mitochondrion and many others show an increase in the amount of matrix space and a more vesicular type of cristae, and some times have cristae inclusions.

Handing off the blame!!

Quotes and Typos

Per Rosanne on the news this 30th day of May, I heard on NPR one of the best retorts to a comment attempting to reassign blame for a racist comment from self to Ambien…….  Reply from the drug company was spot on and i am sure it will become a classic quote. It went something like this….

 “Medicines have many side effects…. racism is not one of them”

medicines have many side effects but racism is not one of them

What part of your brain chooses your partner for procreation?

Rants

Sexual selection in humans —  wikipedia has a short general article…  I would have thought that this topic would be flooded with blogs and articles…. not so.

I dont have a single sibling who didnt marry a “slower, less anxious, low key, hands off” mentality…. it was great for the species…. but awfully hard on the parental relationships… haha… i laugh about that paradox….. for me it seems very obvious that our animal brains rule… !!! biololgy just is determined to even out the extremes.