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Doctor insights on: Histidine Structure

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Which tooth structure is calcium hydroxide placed?

Which tooth structure is calcium hydroxide placed?

On dentin: I believe what you're asking is where is it placed. Calcium hydroxide is usually placed in the area where the decay was closest to the nerve (pulp) of the tooth. Calcium hydroxide will help build up a barrier between the nerve and filling. There are some better materials in use now besides calcium hydroxide. ...Read more

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Is melamine an amino acid or protein?

Is melamine an amino acid or protein?

Neither.: It is a nitrogen rich plastic frequently added to food products to artificially boost protein assays because of its nitrogen content. Avoid! the chinese infant formulas and pet foods have had scandals in the past for putting this in said material! it is toxic! can cause a myriad of problems, particularly renal problems! ...Read more

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Which combination of amino acids produce dystrophin gene?

Which combination of amino acids produce dystrophin gene?

DNA: Genes are made up of nucleic acids called DNA. Those genes are then transcribed into amino acid sequences called proteins. The dystrophin gene is much too large to spell out in a DNA sequence, and its protein is much too large to spell out in an amino acid sequence. Here is a link to some more information on the gene. http://www.ncbi.nlm.nih.gov/gene/1756 ...Read more

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DoesPrazosin/other alpha blocks act on non-vascular smooth muscle e.g. the throat?If sudafed is alpha stim and contricts nasal,wouldnt it make sense?

DoesPrazosin/other alpha blocks act on non-vascular smooth muscle e.g. the throat?If sudafed is alpha stim and contricts nasal,wouldnt it make sense?

Good question: Alphablockers used to treat hypertension seem to be specific for their action on arteriolar musculature as far as I can tell clinically. Sudafed constricts smooth muscle in vessel walls, but can stimulate smooth muscle in the lower urinary tract and cause urinary retention at times. A pharmacologist would be best qualified to answer your question however. ...Read more

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Is histamine excitatory or inhibitory?

Is histamine excitatory or inhibitory?

Excitatory: Histamine is actually classified as an excitatory neurotransmitter in the brain responsible for the sleep wake cycle. Too much of it can keep you awake. That is why it is used in many commercial sleep aides seen with the letters "pm" attached to some kind of pain killer. A common side-effect of a histamine blocker like Diphenhydramine (benadryl) is drowsiness. ...Read more

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Which is the most potent histamine h1 receptor blocker that causes serious sedation?

Which is the most potent histamine h1 receptor blocker that causes serious sedation?

Too many to list: There are truly dozens of h1 receptor blockers, many of the first generation of which will result in sleepiness. The tow most commonly used to treat insomina (which would result in sleeping) are Diphenhydramine and doxylamine. ...Read more

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Help docs, is hydraulic acid the same as hydrochloric acid?

Help docs, is hydraulic acid the same as hydrochloric acid?

Why do you ask?: There's no such thing as hydraulic acid. Hydrochloric acid is a powerful reagent that you meet in chemistry class. Hyaluronic acid is a big molecule that provides a jelly-like material that's important for some of your connective tissues. ...Read more

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Has 'branched chain amino acids' (bcaa) diet suplement some negative affects on human body? (kidneys, liver etc.?)

Has 'branched chain amino acids' (bcaa) diet suplement some negative affects on human body? (kidneys, liver etc.?)

?beneficial: Likly to be beneficial in variety of conditions as source of protein. I am not sure the price you pay. Is worth it as egg white is as good a protein which comes. In natural form. ...Read more

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Is it real that januvia (sitagliptin) 100mg made pancreas cells produce more insulin ( made beta cells more active )?

Is it real that januvia (sitagliptin) 100mg made pancreas cells produce more insulin ( made beta cells more active )?

Incretin: Januvia (sitagliptin) is an incretin which inhibits the breakdown of an enzyme called dpp-4. Dpp-4 breaks down glp-1. Glp-1 stimulates Insulin and inhibits glucagon (which raises glucose). Inhibition of glp-1 breakdown means it can stimulate more Insulin and inhibit more glucagon. ...Read more

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Between Allegra and Desloratadine, which drug has less blood-brain barrier permeability and is less anticholinergic?

Between Allegra and Desloratadine, which drug has less blood-brain barrier permeability and is less anticholinergic?

Allegra: Fexofenadine and loratadine, allegra and claritin, respectively, are the least sedating of all anti-histamines according to a recent NIH review. All anti-histamines cross the blood brain barrier to some extent. The real issue is sedation and allegra and claritin appear to win the context. They are also less anticholinergic than many others. ...Read more

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Which is rate metabolic disorder 4 hydroxy butyric aciduria?

Which is rate metabolic disorder 4 hydroxy butyric aciduria?

Probable ketosis: Beta hydroxybutyric acid is a compound formed during starvation, or diabetic ketoacidosis as the result of fat breakdown for energy in the absence of carbohydrates the question here is unclear, perhaps re submit? ...Read more

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What is the difference between ACE inhibitor and angiotensin receptor antagonist?

What is the difference between ACE inhibitor and angiotensin receptor antagonist?

Names say it all: Angiotensin converting enzyme(ace) inhibitor vs angiotensin receptor blocker(arb). The names really say it all. Angiotensin which raises blood pressure needs to be activated to work. Aces prevent that activition. Arbs directly block the activity of angiotensin. Both have similar effects but there is more evidence for heart protection with aces than arbs but slightly more side effects with aces. ...Read more

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Is ascorbic acid involved in synthesis of andrenaline?

Is ascorbic acid involved in synthesis of andrenaline?

Ascorbic acid: is an essential nutrient, but not involved directly in synthesis of adrenaline. Ascorbic acid intake does not affect adrenaline levels. ...Read more

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Which ingredient is the best way fight wrinkles? Retinol, peptides, collagen, stem cells, plancenta, amino acids or vitamin C

Which ingredient is the best way fight wrinkles? Retinol, peptides, collagen, stem cells, plancenta, amino acids or vitamin C

Growth factors: We have known since the 70s that retinoids and retinols are great collagen stimulators (which equals wrinkle fighters). In this century, we developed collagen growth factors which are derived from actual human skin and are necessary for collagen to thrive, thus reducing and eliminating wrinkles. Note i did not say "appearance of wrinkles". Skinmedica is my favorite product to contain these. ...Read more

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