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Category: biotech/medical – Page 680

Researchers have used 3D nanotechnology to successfully grow human retinal cells, opening the door to a new way of treating age-related macular degeneration, a leading cause of blindness in the developed world.

In age-related macular degeneration (AMD), the macula, the part of the retina that controls sharp, straight-ahead vision, deteriorates and causes blurring in the central field of vision.

There are two types of AMD, ‘dry’ and ‘wet.’ Dry AMD is where the RPE cells in the macula break down, causing vision loss over time. It’s the most common type and mostly affects older people. In the rarer wet AMD, abnormal blood vessel growth into the macula causes fluid and blood leakage, damaging the retina and destruction of the RPE cells, leading to a rapid loss of vision.

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On a rush-hour train or a crowded flight, you might draw your limbs in close, shrinking as people fill the space. As it turns out, living cells behave similarly in confinement, adjusting their size while growing alongside other cells in sheets of tissue.

John Devany, then a graduate student in the lab of biophysicist Margaret Gardel, had been studying epithelial monolayers—sheets of cells that form barriers in skin and coat —when he noticed something interesting about how the cells were dividing.

“The way people think about division is that a cell will grow to twice its size, divide, and repeat the cycle,” says Devany, the first author of the study, published in Developmental Cell. But in the he was observing, division was proceeding as usual, but the were ending up smaller than the mother. The team, collaborating with researchers from New York University, decided to investigate the mechanisms that control cell growth and cycle duration in tissue and discovered that the two processes are not directly coupled.

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The results of the study, Nadim II, from the Spanish Lung Cancer Group (GECP), have been published in the “New England Journal of Medicine” and endorse the great benefit of chemo-immunotherapy with nivolumab before operating on lung tumours in stage 3.

Nivolumab is a type of monoclonal antibody therapy, which works by stimulating the immune system to kill cancer cells.

Lung Cancer Treatment Breakthrough In Spain Could Increase Survival Rates by 20%.

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Revolutionizing Cancer Research: The Power of Nanobiotechnology|Role of nanotechnology in Cancer.

#cancer #biotechnology #nanotechnology #nanobiotechnology #cancerbiology #cancerresearch #biology #molecularbiology #molelixirinformatics.

✓Discover the exciting advancements in Nanobiotechnology and its role in transforming cancer research.

✓This groundbreaking field is using tiny nanotechnology to make a big impact in the fight against cancer. From early detection to targeted treatments, Nanobiotechnology is providing new hope for a future free from the disease.

Continue reading “Cancer Research & Nanotech: The Power of Nanobiotechnology|Role of nanotechnology in Cancer” | >

There is typically no discomfort or sensation during the actual radiation treatment. Most pediatric patients have few, or very mild, side effects from proton therapy. If your child does experience any side effects, they can be managed with medications in most cases. Depending on your child’s diagnosis, treatments are usually given five days a week for a period of four to eight weeks.

The time spent actually delivering the protons to the tumor is about one minute, but a pediatric cancer treatment session can range from 20 to 90 minutes, depending on the patient’s needs. Sedation is available if needed to help keep your child still during the treatment. Most children are able to participate in normal activities before and after treatment.

Learn more about what to expect when getting treated with proton therapy.

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Every person starts as just one fertilized egg. By adulthood, that single cell has turned into roughly 37 trillion cells, many of which keep dividing to create the same amount of fresh human cells every few months.

But those cells have a formidable challenge. The average dividing cell must copy — perfectly — 3.2 billion base pairs of DNA, about once every 24 hours. The cell’s replication machinery does an amazing job of this, copying genetic material at a lickety-split pace of some 50 base pairs per second.

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A Long Island man who was paralyzed in a diving accident has regained motion and feeling in his body after a breakthrough, machine learning-based surgery that successfully “connected a computer to his brain” through microelectrode implants.

Now, the successful case of Massapequa’s Keith Thomas, 45, is being heralded throughout the medical world as a “pioneer” case for AI-infused surgeries to treat or cure impassible illnesses like blindness, deafness, ALS, seizures, cerebral palsy and Parkinson’s, experts at Manhasset’s Feinstein Institutes for Medical Research boast.

“This is the first time a paralyzed person is regaining movement and sensation by having their brain, body and spinal cord electronically linked together,” Chad Bouton, a professor at Feinstein’s Institute of Bioelectronic Medicine, told The Post.

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Materials possessing both strength and lightness have the potential to enhance everything from automobiles to body armor. But usually, the two qualities are mutually exclusive. However, researchers at the University of Connecticut, along with their collaborators, have now crafted an incredibly strong yet lightweight material. Surprisingly, they achieved this using two unexpected building blocks: DNA

DNA, or deoxyribonucleic acid, is a molecule composed of two long strands of nucleotides that coil around each other to form a double helix. It is the hereditary material in humans and almost all other organisms that carries genetic instructions for development, functioning, growth, and reproduction. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).

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