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Do “scars” in humans replace all the skin layers or only some layers?

When someone has a cut or surgical incision that results in a "scar", is the scar tissue replacing all 3 layers of the skin (epidermis, dermis, hypodermis)? Or only the first one or two of them?
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Reason for variation in the site of onset of edema

What is the reason for the observed clinical difference in the earliest site of onset of edema in cases of different etiologies? For example, in Congestive Heart Failure, it appears initially as ...
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Are there diseases for which a placebo treatment is state of the art?

I was reading about the placebo effect, and I wondered if there exists or ever existed a disease with the following properties: There are no known treatments for the disease that perform better than ...
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How does drug-induced photosensitivity work?

Some drugs (tetracyclines, for instance) can cause photosensitivity reactions—that is, some patients become extremely sensitive to the sun, developing rashes or inflammation after spending time ...
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How is the side-polarity of the myosin filament in myofibril maintained?

If myosin molecules are the properly oriented relative to their position in the the myosin filaments, the sarcomere is not functional. But how is the orientation of the myosin molecules determined? ...
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Why are kidney discard rates so high?

A recent report from UNOS states: The kidney discard rate has returned to pre-KAS levels, dropping from 20.2 percent in the first six months to 18.4 percent in months 7-10. To me, this seems ...
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Database of Medical Assertions

Can anyone point me toward a computationally-accessible database of medical assertions? I'm looking for something where each row in the database contains a single unit of knowledge. It could either be ...
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What is a lip? (upper lip and lower lip)

Everyone knows what a lip is but I'm asking from a technical and anatomical standpoint. Actually what we call "lip" is "vermilion" in medical terminology. But I want to ask if my understanding is ...
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How does having an empty stomach affect absorption of compounds?

From personal experience, compounds such as nicotine, caffeine and alchohol appear to absorb much quicker into the blood on an 'empty' stomach', or after extended periods of fasting. If this is the ...
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Are there available fluids that can be used in place of blood to facilitate oxygen and carbon dioxide exchange during major surgery/trauma?

Are there any available fluid alternatives that can be used instead of blood replacement that adequately exchange oxygen and carbon dioxide?
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Source of journals collecting titles of scientific publications regarding clinical trials with dogs fed medicinal herbs

After some time researching on the web, you can find a lot of websites telling you that some herbs may have or have specific properties(unfortunately most seem to be "advertised" as if they were ...
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Why can't diamine oxidase be supplemented?

I've read that diamine oxidase cannot be supplemented from an academic article but it had no explanation as for why. I am curious as to why this? Article reference: http://onlinelibrary.wiley.com/doi/...
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Is a neurostimulation implant for the soft-palate component of obstructive sleep apnea plausible?

There are currently ongoing clinical trials for neurostimulation implants designed to keep the tongue from blocking the airway in obstructive sleep apnea. The nerves for this are in the neck and ...
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Genetic screening understanding requisites

I am a mathematics and philosophy undergraduate student studying a bit of a biology as part of a philosophy research project on genetic screening. I have not studied biology since I was 16 and I was ...
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IG isotypes in commercial mAb products

It appears that most monoclonal antibody medical products exclusively contain the IgG (and some IgE) isotypes. Also, some manufacturers use only certain IgG subclasses. While the IgG-isotype is the ...
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36 views

Why alcohol can't help with OCD?

I was thinking about influence of ethanol on our brain. We know, that ethanol can affect GABA receptors and increase flow of chlorine in our brain cells. So it makes signal weaker and slow our CNS ...
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Why exactly does a scarf help against a neck pain and a sore throat?

I was going out without a scarf and as this day my neck was more sensitive; after a while my voice was rasping, I needed to cough and my neck was hurting slightly. After coming home I put on my silk ...