Tag Archives: Cancer

IMAGE RECONSTRUCTION IN COMPUTED TOMOGRPHY(CT)

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This slideshow provides extensive and interactive information about the computed tomography image reconstruction
Most people have trouble understanding it
But this is easy reference for better understanding
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Top Five Biomedical Innovations of the last decade-Biomedical news

As the decade comes to an end, we’ve asked Xconomists and other technology leaders around the country to identify the top innovations they’ve seen in their fields the past 10 years, or predict the top disruptive technologies that will impact the next decade.

  1. Increasing use, validation and acceptance of surrogate endpoints for clinical trials.
  2. Novartis’ imatinib (Gleevec). The first drug for specifically inhibiting an enzyme causing cancer rather than killing fast dividing cells….
  3. Human papillomavirus vaccines. This is both for innovative science, and innovative treatment of a vaccine for a virus tied to cancer.
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HEREDITY GENETIC CODE,RNA & DNA-TUTORIAL

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Information is Stored in the Code Letters of DNA

  • All hereditary information is stored in genes, which are parts of giant DNA molecules
  • Genes code for the amino acids of proteins
  • DNA is the archival copy of the code- kept in nucleus where it is protected & repaired
  • DNA is organized with special proteins into chromosomes
  • For protein synthesis a working copy of the code is made from RNA
  • Overall scheme: DNA -> RNA -> protein
  • Another version: “One gene, one enzyme”
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BRAIN CANCER STOPPED USING VENOM

BRAIN CANCER STOPPED BY SCORPION VENOM
Cutting the Spread of Tumors
Scientists have been looking at chlorotoxin, a peptide in scorpion venom, for the past decade as a way to target cancer cells. And the big payday has arrived. By combining nanoparticles with a scorpion venom mix already being investigated for treating brain cancer, University of Washington researchers found they could cut the spread of cancerous cells by 98 percent, compared to 45 percent for the scorpion venom alone (www.uwnews.org).
This is the first time that nanoparticles, which are ultrafine particles, have been combined with a treatment that physically stops cancer’s spread. “People talk about the treatment being more effective with nanoparticles but they don’t know how much, maybe 5 percent or 10 percent,” said Miqin Zhang, professor of materials science and engineering.  “This was quite a surprise to us.”  She is lead author of the study.
Chlorotoxin binds to a surface protein on many types of tumors, including brain cancer.  Chlorotoxin also disrupts the spread of tumors.
The Whole is Greater than the Parts
The researchers investigated chlorotoxin when it is attached to nanoparticles and found that the treatment’s effect doubles compared to chlorotoxin alone.  Adding nanoparticles often improves a therapy, partly because the combination lasts longer in the body and so has a better chance of reaching the tumor.  Combining also boosts the effect because therapeutic molecules clump around each nanoparticle.
Slowing the spread of cancer would be especially useful for treating highly invasive tumors, such as brain cancer.  The technique could hypothetically also slow the spread of other tumors with the same kind of activity, such as breast, colon, skin, lung, prostate, and ovarian cancers.
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Nanosensors Can Scan Blood for Cancer Biomarkers-This has been achieved in whole blood for the first time

A team of experts at the Yale University has recently announced that it has developed a new series of nanosensors, a class of devices that is able to analyze whole blood samples, and detect the presence of cancer biomarkers in them. The latter are chemical agents that tumors and cancer cells produce, and their existence in the body can only mean one thing. The amazing achievement could soon enable physicians to cut the cancer-detection process short, leaving more time for the actual treatments.

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FIGHT CANCER GO EASY

Scientists from University of Strathclyde have devised a novel way to harness natural vitamin E extract that would kill tumours within 10 days.

Using a new delivery system, the research team could mobilise an extract from Vitamin E, known ton have anti-cancer properties, to attack cancerous cells.

In the study conducted over skin cancer, the researchers found that tumours started to shrink within 24 hours and almost vanished in ten days.

They believe the tumours might have been completely destroyed if the tests had continued for longer.

When the tumours regrew, they did so at a far slower rate than previously.

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