Hyperlipid

You need to get calories from somewhere, should it be from carbohydrate or fat?

Wednesday, March 27, 2019

Life (27) Alphabet soup

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So this is the predicted structure of  the modern MrpA-like functional antiporter from N thermophilus, nt-Nha: cour...
Tuesday, March 26, 2019

Life (26) MrpA MrpD NuoL NuoM and NuoN. Plus nt-Nha.

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A few years ago I mentioned this paper Homologous protein subunits from Escherichia coli NADH:quinone oxidoreductase can functionally repl...
Monday, March 25, 2019

Life (25) Left or right hand?

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Here is the basic Mrp antiporter structure as suggested in Structure of an Ancient Respiratory System Quite how many protons are exchang...
3 comments:
Sunday, March 24, 2019

Looking to the future

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I notice the EU is considering approval for a plan to enforce removal of copyright infringing images form pretty well everywhere on T'in...
10 comments:
Friday, March 15, 2019

Tucker on omega six PUFA

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While I've been day dreaming about antiporters at the origin of life Tucker has been busy. I guess most people reading here would read T...
10 comments:
Wednesday, March 06, 2019

Life (24) Porting over CCCP

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Just to summarise: The membrane bound hydrogenase (MBH) of Pyrococcus furiosus pushes a proton outwards through a proton permeable membrane ...
9 comments:

Life (23) Antiporting: Choose your ion well

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Sorry to go on about Yu et al's paper Structure of an Ancient Respiratory System but there's an awful lot in it. Here again is t...
Thursday, February 28, 2019

Thinking about things

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I'm just following trails from the Mrp antiporter derived subunit of the membrane bound hydrogenase of Pyrococcus furiosus. The original...
3 comments:
Tuesday, February 26, 2019

The internet is a strange place (2)

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Tom Naughton has a post up which pretty well sums up why I don't use twitter. It also encapsulates why I do respect those people who co...
4 comments:
Sunday, February 24, 2019

Life (22) FeNi hydrogenase

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OK, more doodles. More on Yu's paper . Back in 2015 I produced this diagram based around Nick Lane's ideas and labwork: Pleas...
2 comments:
Thursday, February 21, 2019

Life (21) Pyrococcus furiosus

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Pyrococcus furiosus is an interesting organism. It has a penchant for living in environments at around 100degC. It looks like it has occupie...
4 comments:
Saturday, February 16, 2019

The internet is a strange place

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I don't do twitter or facebook (If you are a metabolic person and have friend-requested me and I've ignored it please don't take...
16 comments:
Sunday, February 10, 2019

Cell surface oxygen consumption (3) Alternative options

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Have a look at this: Limits of aerobic metabolism in cancer cells "To gain a better understanding of cell metabolism as a function ...
1 comment:
Sunday, February 03, 2019

Lactate as bulk energy transport

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Using RQ to track whole body substrate oxidation is pretty straight forward. An RQ of 1.0 means glucose oxidation and of 0.69 indicates fat ...
17 comments:
Saturday, February 02, 2019

Lactate: Is the astrocyte-neuron lactate shuttle scuppered?

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You don't usually learn much from statements which you, personally, consider likely to be correct. Annoying statements are far more prod...
2 comments:
Sunday, January 20, 2019

Metformin (10) Macavity

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TLDR: Macavity, Macavity, there's no one like Macavity, He's broken every human law, he breaks the law of gravity. His power...
7 comments:
Saturday, January 19, 2019

Cell surface oxygen consumption (2)

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How does cell surface oxygen consumption happen? Here is the main reaction overall (it's probably not that simple!): 4e - + 4 H + + ...
2 comments:
Friday, January 18, 2019

Cell surface oxygen consumption (1)

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Back in the comments thread to the More on insulin and the glycerophosphate shuttle post there has been some discussion as to whether Warbu...
12 comments:
Friday, January 11, 2019

How primordial is oxidative phosphorylation?

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It is perfectly possible to run a sophisticated metabolism using the energy available from an hydrogen rich geochemical proton gradient of t...
7 comments:
Monday, December 31, 2018

How much linoleic acid to get fat and insulin resistant?

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Tucker and Mike both gave me the heads-up on this paper recently. Linoleic acid causes greater weight gain than saturated fat without hypo...
21 comments:
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Peter
I am Petro Dobromylskyj, always known as Peter. I'm a vet, trained at the RVC, London University. I was fortunate enough to intercalate a BSc degree in physiology in to my veterinary degree. I was even more fortunate to study under Patrick Wall at UCH, who set me on course to become a veterinary anaesthetist, mostly working on acute pain control. That led to the Certificate then Diploma in Veterinary Anaesthesia and enough publications to allow me to enter the European College of Veterinary Anaesthesia and Analgesia as a de facto founding member. Anaesthesia teaches you a lot. Basic science is combined with the occasional need to act rapidly. Wrong decisions can reward you with catastrophe in seconds. Thinking is mandatory. I stumbled on to nutrition completely by accident. Once you have been taught to think, it's hard to stop. I think about lots of things. These are some of them.
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