Goodbye surgery? Scientists just made eye drops that dissolve cataracts

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It could mean a cheap, painless way to restore vision to thousands.

Most of us take our vision for granted. As a result, we take the ability to read, write, drive, and complete a multitude of other tasks for granted. However, sight is not so easy for everyone. Indeed, for many people, simply seeing is a struggle.

There are more than 285 million people worldwide who have vision problems. According to the Fred Hollows Foundation, an estimated 32.4 million people around the world are blind. Ultimately, 90% of these people live in developing countries, and more than half of these cases of blindness are caused by cataracts. Indeed, cataracts are the leading cause of blindness in the world.

Continue reading… “Goodbye surgery? Scientists just made eye drops that dissolve cataracts”

Neural stem cells grown from blood could revolutionize medicine

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Doctors could soon be able to grow new brain cells, which would help treat people with strokes or other neurological conditions, using just a small blood sample.

Scientists from Heidelberg University Hospital in Germany and the University of Innsbruck in Austria figured out how to reprogram mature human blood cells into neural stem cells. Scientists have reprogrammed stem cells before, but these new cells are the first ones that can continue to multiply and propagate in the lab thanks to specific genetic tweaks, according to research published Thursday in the journal Stem Cell.

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Ingestible capsule can be controlled wirelessly

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Electronic pill can relay diagnostic information or release drugs in response to smartphone commands

Researchers at MIT, Draper, and Brigham and Women’s Hospital have designed an ingestible capsule that can be controlled using Bluetooth wireless technology. The capsule, which can be customized to deliver drugs, sense environmental conditions, or both, can reside in the stomach for at least a month, transmitting information and responding to instructions from a user’s smartphone.

The capsules, manufactured using 3-D-printing technology, could be deployed to deliver drugs to treat a variety of diseases, particularly in cases where drugs must be taken over a long period of time. They could also be designed to sense infections, allergic reactions, or other events, and then release a drug in response.

“Our system could provide closed-loop monitoring and treatment, whereby a signal can help guide the delivery of a drug or tuning the dose of a drug,” says Giovanni Traverso, a visiting scientist in MIT’s Department of Mechanical Engineering, where he will be joining the faculty in 2019.

These devices could also be used to communicate with other wearable and implantable medical devices, which could pool information to be communicated to the patient’s or doctor’s smartphone.

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Lasers cure nearly 50% of patients with prostate cancer in new study

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Experts have honed a cutting-edge method to kill off tumors with less damage to healthy cells.

Researchers at the Weizmann Institute of Science in Israel and STEBA Biotech have announced the success of the unique method they developed to fight prostate cancer. This treatment, which the group of expects called “transformative,” has shown promising results.

Under development since 2011, vascular targeted photodynamic therapy (VPT), as the procedure is called, is carried out in a two-step process. Patients are first introduced to WST11 — a compound extracted from some benthic bacteria, or bacteria that dwell at the bottom of the sea. These bacteria are particularly special, though, as they are highly light-sensitive.

Optical fibers are then inserted through an area called the perineum, found between the the testes and the anus, and directly into the prostate gland. Afterwards, the scientists turn on a red laser that is induced through the optical fibers. This process utilizes the photosensitivity of the WST11 drug and activates it. Upon activation, free radicals are released within the area, attacking and destroying the tumors. Unlike conventional treatments which might affect a general area of body cells, this treatment is localized. The nearby cells are left more or less unharmed.

Continue reading… “Lasers cure nearly 50% of patients with prostate cancer in new study”

The 10 most incredible medical breakthroughs of 2018

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From medical drones to the first FDA-approved cannabis drug, innovative research continues to transform the future of health care.

In a tech-obsessed world, it’s only natural to ponder all the ways technology might actually be damaging your health. Is social media a trigger for depression? Could your cell phone start a fire while you sleep? Can reading a computer screen all day ruin your vision? It’s easy to get caught up in that downward spiral of thinking.

However, nestled in between all the negatives is an incredible world of positives. Technology only continues to advance in ways that can completely transform the future of health care. Just last year, scientists made progress in learning how to regenerate body parts, detect pancreatic cancer earlier, and relieve pain via virtual reality, Prevention reported.

This past year has proven to be an equally exciting time for innovative research. Here, some of the most striking medical breakthroughs of 2018 that have the potential to change your life.

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Scientists develop 10-minute universal cancer test

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Coloured scanning electron micrograph of dividing breast cancer cells.

Inexpensive procedure shows whether patient has cancerous cells in the body, but does not reveal where or how serious it is.

Scientists have developed a universal cancer test that can detect traces of the disease in a patient’s bloodstream.

The cheap and simple test uses a colour-changing fluid to reveal the presence of malignant cells anywhere in the body and provides results in less than 10 minutes.

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20 Americans die each day waiting for organs. Can pigs save them?

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Thanks to genetically engineered pigs, the donor-organ shortage could soon be a think of the past.

ANCHORING A ROW of family photos in Joseph Tector’s office is a framed, autographed picture of Baby Fae, the California newborn who made headlines in 1984 when she received a baboon’s heart to replace her own malfunctioning organ.

It’s inscribed “To Joe” by Leonard L. Bailey, the surgeon who turned to the monkey heart as the only option to keep his patient alive. Bailey snapped the picture about five days after the operation, while Stephanie Fae Beauclair was sleeping. A strip of surgical tape runs down the center of her chest from neck to diaper, marking the incision line where her rib cage was pulled apart to make the swap. Baby Fae would die less than three weeks later.

It’s an unsettling image to come upon while glancing over snapshots of someone’s dutifully smiling children. But to Tector, who was 19 at the time of Baby Fae’s surgery, the cross-species organ transplant was the most inspiring thing he’d ever heard of. “I remember where I was when the news broke,” he says. “At that moment I knew exactly what I wanted to do with my life.” What he wanted to do with his life, though he may not have articulated it precisely this way, was to become a surgeon-scientist trying to crack the problem of xenotransplantation — the placing of animal organs into human bodies.

Continue reading… “20 Americans die each day waiting for organs. Can pigs save them?”

72 cent test screens for disease in less than an hour

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A new easy-to-use device can quickly and accurately screen for a variety of diseases, including Zika, Ebola, hepatitis, dengue, and malaria.

The portable device, called enVision (enzyme-assisted nanocomplexes for visual identification of nucleic acids), can also screen for various types of cancers and genetic diseases. EnVision takes between 30 minutes to one hour to detect the presence of diseases, which is two to four times faster than existing infection diagnostics methods. The device also costs less than 75¢—100 times less than tests currently in use.

“The enVision platform is extremely sensitive, accurate, fast, and low-cost. It works at room temperature and does not require heaters or special pumps, making it very portable,” says team leader Shao Huilin, assistant professor from the Biomedical Institute for Global Health Research and Technology (BIGHEART) and biomedical engineering department at National University of Singapore.

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World’s first full-body medical scanner generates astonishing 3D images

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The new EXPLORER full-body scanner promises faster and more detailed medical imaging(Credit: UC Davis)

After over a decade of development, the world’s first full-body medical scanner has produced its first images. The groundbreaking imaging device is almost 40 times faster than current PET scans and can capture a 3D picture of the entire human body in one instant scan.

Called EXPLORER, the full-body scanner combines positron emission tomography (PET) and X-ray computed tomography (CT). Following years of research, a prototype, primate-sized scanner was revealed in 2016. After expansive testing, the first human-sized device was fabricated in early 2018.

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The end of chemotherapy? Scientists discover all cancerous cells have a KILL CODE that can be triggered without the gruelling treatment

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Researchers at Northwestern University found that our cells can kill themselves

Currently, this is triggered by disease itself or the artificial use of chemotherapy

Now, experts believe the ‘kill codes’ could be synthetically duplicated for use

Every cell in the human body contains a ‘kill code’ which can be triggered to cause its own self-destruction.

That’s the discovery made by researchers at Northwestern University, Illinois, who believe it could be utilised for the future fight against cancer.

Continue reading… “The end of chemotherapy? Scientists discover all cancerous cells have a KILL CODE that can be triggered without the gruelling treatment”

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