rwst

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	2,584 reputation	bio	website		visits	member for	11 months
118 badges		location	Berlin, Germany		seen	Jun 8 at 9:53

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Nov 15	comment	Is Leptin Stimulated by Insulin Alone? It looks like it. However see the other review I added.
Nov 15	comment	Is Leptin Stimulated by Insulin Alone? You can edit your question, I have done that for you.
Nov 11	comment	Difference between mice and rats To compute exactly which genes are new in one of the species vs. their ancestor, you could use orthology data from omabrowser.org
Nov 11	comment	Difference between mice and rats Different species by definition have different body chemistry, else they could mate. However, identity on the gene level is probably similar to the man/ape difference of 98 per cent, so MOST body chemistry is identical.
Nov 8	comment	Is there any biological reason for humans to rest after x days of work? No, it's explained by Family, a very complex stuff :)
Nov 8	comment	Does sour food cause sweating? Note that usual vinegar may trigger a grape intolerance/allergy and even seemingly "chemical" acetic essence may be in part extracted.
Nov 8	comment	HDL- and LDL-cholesterol Just to add that associations of high cholesterol with CVD are still not clearly established and probably never will be, as there is also good evidence against. This doesn't diminish that high fat diets (= probably more calories than you need) will lead to overweight with all associated risks.
Nov 5	comment	Are the inverse problems of Systems Biology impossible to solve? The problem is that you need good data to do good sysbio, and you need lab work to produce good data. You can't simply rely on electronic annotation of genes and even manual curation introduces too many errors. Then where do you get your enzymatic constants from. It's all garbage in, garbage out.
Nov 5	comment	Are the inverse problems of Systems Biology impossible to solve? Another Brenner quote: "Systems biology is low input, high throughput, no output science" and I fully agree.
Nov 5	comment	Does artificial heat (shower/tea) affect diurnal rhythms in humans? Well if temperature follows optical input, then it's not the other way round, is it? With warming up your body, you may get all sorts of psychological effects that obscure the rhythm but you can't simply exchange cause and effect of the diurnal cycle.
Oct 31	comment	What triggers creative thought in humans? But don't you see? Being overly (!) optimistic about anything is a source of illusion that can, in the extreme, get you killed and certainly shortens your lifespan if applied constantly. That's why I said, evolution will select against it.
Oct 30	comment	For which types of molecules do repressors exist? I don't agree. With the Gene Ontology, getting a list of such feedback loops appeared possible to me, even as it later turned out to be not so. Such queries on databases are perfect answers to such questions, as well as a good review on the subject.
Oct 30	comment	For which types of molecules do repressors exist? Any DNA-binding protein that negatively regulates gene expression is called repressor. What the OP is probably looking for is feedback loops involving repressors.
Oct 30	comment	What triggers creative thought in humans? I'm quite sure that, if there is such a system, evolution will select against it. Most people live quite well without being innovative or running after any new idea they come up with. I really think you're overly optimistic about the idea. Einstein also said genius is 5% inspiration and 95% transpiration.
Oct 29	comment	What triggers creative thought in humans? Define idea, please. I have no idea what you mean with the term.
Oct 28	comment	Do foods with preservatives become less toxic in the gut? You can only exclude specific effects. And you're right in suspecting that not all is well with food additives. Lots of people have intolerance/allergies to them. In general however, the answer is correct and if it weren't, the food industry would be buried with paper by lawyers.
Oct 28	comment	An unexpected mushroom in my garden If you know the german language, another good page is de.wikipedia.org/wiki/Wikipedia:Redaktion_Biologie/Bestimmung
Oct 22	comment	Are there genes in humans from the common ancestor of all organisms? The term to look for is 'ubiquitous' (genes/proteins). Apart from glycolysis and ribosome there is nucleotide synthesis and some (but not all) amino acid synthesis. This list is still not complete.
Oct 19	comment	What is the difference between orthologs, paralogs and homologs? I'm aware of convergent evolution, as well as repeating sequence parts. There is also the conservation of domains with respect to non-functional parts. That's why I wrote "in general".
Oct 17	comment	Are there any websites offering graphs for the light absorption of different enzymes? I think the usual lab method is measuring the enzymes' activity by supplying the substrate and measuring how much product is created in what time.