Our liver does everything from filtering blood, breaking down
and absorbing fats, processing cholesterol, carbohydrates, and
proteins. It stores glycogen, vitamins, and minerals. It
detoxifies chemicals and metabolizes drugs. It is also one of
the organs that break down old or damaged blood cells.
The liver plays a
central role in all metabolic processes in the body. In fat
metabolism the liver cells break down fats and produces energy.
The liver also makes proteins important for blood clotting and
other functions. The liver is the largest internal organ and is
the only organ that can regenerate itself. However, repeated
damage to it can eventually injure and scar it.
Showing posts with label Liver. Show all posts
Showing posts with label Liver. Show all posts
Jan 18, 2019
Oct 28, 2016
Water and Toxins Myth
There is a myth that says water flushes out toxins
from our body. This popular misconception is that drinking
copious amounts of water will help magically cleanse our
innards.
Drinking adequate amounts of water ensures our body’s metabolism works correctly. Part of this is the natural detoxification process liver and kidneys conduct. They work fine as long as they are getting enough, but not too much liquid.
Additional water intake is not going to help. In fact, drinking too much water can actually prevent the detoxification process. It reduces the concentration of salt in our blood, which can damage kidneys and liver and prevent their normal functioning.
Drinking adequate amounts of water ensures our body’s metabolism works correctly. Part of this is the natural detoxification process liver and kidneys conduct. They work fine as long as they are getting enough, but not too much liquid.
Additional water intake is not going to help. In fact, drinking too much water can actually prevent the detoxification process. It reduces the concentration of salt in our blood, which can damage kidneys and liver and prevent their normal functioning.
Aug 1, 2014
High Tech Meets Low Tech
An inexpensive diagnostic test
made from paper has been developed that can assess liver health in
15 minutes and for only pennies a test. The test uses a single drop
of blood from a finger prick to measure the presence of liver
enzymes, and doesn't require the presence of a laboratory,
instruments, or syringes. If liver enzymes are present in the blood,
wells within the paper will show a color change, which are be color
matched to a scale to determine approximate degree of concentration.
A color change indicates the concentration range of enzymes present.
Though this can be checked by eye, greater accuracy could be
achieved by scanning the paper with a smartphone, which are
incredibly prevalent throughout regions in which the kit would be
used.
Liver damage can be a consequence of taking antiretroviral drugs, which are prescribed to HIV patients. Because of the high HIV infection rates in poor countries, liver problems are on the rise, so the ability to cheaply monitor blood is important to prevent potentially fatal side effects of the drugs meant to save people’s lives.
The paper uses patterns, channels, and assay zones (or wells) of water-repellent materials on a piece of paper about the size of a postage stamp. Biological and chemical assay reagents are then deposited in the wells. When blood, urine, saliva, sweat or other biological samples are applied to it, the paper wicks the sample through the channels to the assay zones, without external pumps or power. Upon contact, the assay zone quickly changes color and results are then easily read by comparing the color change with a printed reference scale. After use, it can be easily disposed of by burning.
These patterned paper-based devices can be embedded with electrical circuitry to enable resistive heating, electrochemical assays, or initial processing of assay results. Multiple sheets of patterned paper can be stacked to generate three-dimensional devices capable of automatically performing a variety of complex fluid operations such as splitting, filtration, mixing, and separations.
The postage stamp-sized paper diagnostics system was developed in the laboratory of Harvard Professor George Whitesides seven years ago. With funding from the Bill and Melinda Gates Foundation, Professor Whitesides started the non-profit organization, Diagnostics For All., and looked to improve the health of the poorest areas of the world. The team is also working on malaria and dengue fever tests.
An ink jet printer using wax ink prints a pattern on two sheets of paper. One sheet contains reagents that react with liver enzymes, the other dyes that change color if a reaction occurs. The two sheets are fused together by heating, so that channels or wells that can be used as miniaturized test tubes for reactions are produced. A plasma filter is added and the three are laminated together, and cut into postage stamp size squares. The rest of the world could also benefit from this low cost efficient healthcare.
Liver damage can be a consequence of taking antiretroviral drugs, which are prescribed to HIV patients. Because of the high HIV infection rates in poor countries, liver problems are on the rise, so the ability to cheaply monitor blood is important to prevent potentially fatal side effects of the drugs meant to save people’s lives.
The paper uses patterns, channels, and assay zones (or wells) of water-repellent materials on a piece of paper about the size of a postage stamp. Biological and chemical assay reagents are then deposited in the wells. When blood, urine, saliva, sweat or other biological samples are applied to it, the paper wicks the sample through the channels to the assay zones, without external pumps or power. Upon contact, the assay zone quickly changes color and results are then easily read by comparing the color change with a printed reference scale. After use, it can be easily disposed of by burning.
These patterned paper-based devices can be embedded with electrical circuitry to enable resistive heating, electrochemical assays, or initial processing of assay results. Multiple sheets of patterned paper can be stacked to generate three-dimensional devices capable of automatically performing a variety of complex fluid operations such as splitting, filtration, mixing, and separations.
The postage stamp-sized paper diagnostics system was developed in the laboratory of Harvard Professor George Whitesides seven years ago. With funding from the Bill and Melinda Gates Foundation, Professor Whitesides started the non-profit organization, Diagnostics For All., and looked to improve the health of the poorest areas of the world. The team is also working on malaria and dengue fever tests.
An ink jet printer using wax ink prints a pattern on two sheets of paper. One sheet contains reagents that react with liver enzymes, the other dyes that change color if a reaction occurs. The two sheets are fused together by heating, so that channels or wells that can be used as miniaturized test tubes for reactions are produced. A plasma filter is added and the three are laminated together, and cut into postage stamp size squares. The rest of the world could also benefit from this low cost efficient healthcare.
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