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location Boston, MA USA
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visits member for 2 years, 9 months
seen Jun 13 '13 at 13:30

Apr
1
awarded  Nice Answer
Mar
28
revised Where do the bacteria within the vagina originate from?
added 151 characters in body
Mar
28
comment Why do people say that trans fatty acids are bad for your health?
I'll try to get to a formal response later. In the meantime, fatty acids are not bad or unhealthy for humans if taken in moderation. We need fat and cholesterol in our diets, but too much raises the risk of poorer health. Some fatty acids are more beneficial than others.
Mar
28
answered What is the advantage of using starter cultures for growing bacteria?
Mar
26
comment Which organism has the sharpest vision?
Birds of prey - hawks, falcons, eagles, vultures - along with some owls all have exceptional vision.
Mar
24
answered Where do the bacteria within the vagina originate from?
Mar
24
comment Where do the bacteria within the vagina originate from?
Actually, the bacteria in the human gut originate from the birth canal. There are vast differences in the gut microbiome between kids born vaginally and those born by C-section, and these differences can have health consequences later in life.
Mar
22
revised What conditions are necessary for HPL (human pancreatic lipase) to activate?
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Mar
22
comment How does the human body metabolize gasoline?
The implication seems to be gasoline disrupts membrane integrity and function.
Mar
21
comment How does the human body metabolize gasoline?
Vote up/down as you wish, but information on target organs and developmental effects does indeed give relevant information on how the body processes gasoline.
Mar
21
comment Origin, or source, of rhesus negative in human blood
The blood type diet is a bunch of junk. There is no scientific merit to its claims. Genetic differences could be matched to a diet, but those differences should map to genes relevant to metabolic diseases such as cardiovascular disease, type 2 diabetes and the like. A genetic variant in phenylalanine hydroxylase (PAH) can lead to phenylketonuria (PKU) and specific diets can, usually are, prescribed to alleviate (risk of) symptoms. See omim.org/entry/261600.
Mar
21
comment What conditions are necessary for HPL (human pancreatic lipase) to activate?
If a lipase did not need activation, there is the risk that it would digest membrane constituents before compartmentalization and secretion. I'd expect most lipases to have a signal peptide, which needs to be cleaved prior to activation.
Mar
21
answered What conditions are necessary for HPL (human pancreatic lipase) to activate?
Mar
20
revised Are there any other animals that become attached to a non-living object?
added 215 characters in body
Mar
20
comment What conditions are necessary for HPL (human pancreatic lipase) to activate?
Which lipase do you have in mind? From which organism(s)? There are over 90 lipase genes in the human genome.
Mar
20
answered Are there any other animals that become attached to a non-living object?
Mar
16
comment Does age affect the frequency of flatus?
I really can't take the time to reference any studies because these are easily found by searching the proper repositories. I have to spend my efforts analyzing our microbiome data to see how that is affected by diet - some very interesting results need to be published. Knowing what to look for should be enough assistance to Shyam to succeed in this quest.
Mar
16
answered Does age affect the frequency of flatus?
Mar
16
comment What are the evolutionary niches differentiating an apple from a pear?
Once something is cultivated for commercial purposes, it's genome is under tremendous selective pressure. As evidence, consider the origin of the tomato - small and toxic. It is bred and has been bred for very different properties over the last centuries. Apples and pears can be related at the family level, or more related than you think they are based on color, size, taste, region where grown, etc. Most pear trees survive because they are grown on quince root stocks - so differences between these species are not as great as may appear at first glance.
Mar
16
revised Why does Rigor Mortis occur after death?
grammar fixed