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Archive for the ‘biotech/medical’ category: Page 2093

Jan 18, 2019

A New Way to Help Manage Parkinson’s

Posted by in category: biotech/medical

A broader range of treatments for this disorder offers patients a more personalized approach.

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Jan 18, 2019

Stem cell transplant slows down MS progression

Posted by in category: biotech/medical

Clinical trial compares stem cell transplantation with existing disease-modifying therapies and finds that the former is more effective at slowing down MS.

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Jan 18, 2019

Why we need fetal tissue research

Posted by in category: biotech/medical

A vocal minority in the United States is intent on stopping federal funding for research using human fetal tissue, citing stem cell–based or other alternatives as adequate. This view is scientifically inaccurate. It ignores the current limitations of stem cell research and disregards the value of fetal tissue research in finding therapies for incurable diseases. If there is to be continued rapid progress in treating cancer, birth defects, heart disease, and infectious diseases, then we need fetal tissue research.

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Jan 18, 2019

New “ultra” ultrasound is sensitive enough to hear individual bacteria

Posted by in categories: biotech/medical, electronics

Ultrasound technology has been in wide use for decades, helping submarines navigate and letting doctors non-invasively peer inside patients, but it might be about to get a whole lot more powerful. Researchers have developed an “ultra” ultrasound sensor that is so sensitive it can hear air molecules moving around or the vibrations of individual cells.

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Jan 18, 2019

Stem cell therapy shows early promise against macular degeneration

Posted by in categories: biotech/medical, life extension

Age-related macular degeneration is the leading cause of vision loss in seniors, and existing treatments are few.

But now, experiments in pigs and rats suggest that stem cell therapy might help curb at least one form of the disease.

The results could soon lead to the first human trials of this therapy for macular degeneration, according to researchers from the U.S. National Eye Institute (NEI).

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Jan 17, 2019

SuperhumanVideosBrain Surgery with Sound

Posted by in categories: biotech/medical, neuroscience

The brain surgery that uses sound instead of scalpels.

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Jan 17, 2019

Frog eggs reveal pathways for DNA repair

Posted by in category: biotech/medical

DNA is always getting messed up and having to repair itself. Now, researchers have figured out some of the pathways cells use to fix it.

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Jan 17, 2019

Scientists Figured Out How to Separate Pain From Physical Suffering

Posted by in categories: biotech/medical, neuroscience

“We wanted to be more precise here and identify the region and the cells that are responsible for pain unpleasantness,” Scherrer tells Inverse. “We thought if we could find the center, or the cells in the brain that make pain unpleasant, perhaps acting on these cells could be a good strategy to reduce pain in chronic pain patients.”

It’s already established that the amygdala plays a role in the emotional component of pain, but this team actually found the exact cells in the amygdala responsible for those unpleasant pain messages by using a “miniscope,” a tool created by Schnitzer, and observing how mice responded to painful stimuli.

When mice in their experiment were exposed to a drop of scalding water, a given a pinprick, or asked to run along unpleasantly hot tracks, these cells in the amygdala were highly active. Importantly, Schnitzer adds, they didn’t light up when the mice were exposed to other stimuli like sugar water or a bad smell. “Every time mice were unpleased with the stimulation, we saw that these cells were turned on,” he adds.

Continue reading “Scientists Figured Out How to Separate Pain From Physical Suffering” »

Jan 17, 2019

Dragon blood may help wounds heal faster

Posted by in category: biotech/medical

It’s not magic, it’s microbiology. Check it out:

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Jan 16, 2019

A Review of the Potential of Phytochemicals from Prunus africana (Hook f.) Kalkman Stem Bark for Chemoprevention and Chemotherapy of Prostate Cancer

Posted by in categories: augmented reality, biotech/medical

Prostate cancer remains one of the major causes of death worldwide. In view of the limited treatment options for patients with prostate cancer, preventive and treatment approaches based on natural compounds can play an integral role in tackling this disease. Recent evidence supports the beneficial effects of plant-derived phytochemicals as chemopreventive and chemotherapeutic agents for various cancers, including prostate cancer. Prunus africana has been used for generations in African traditional medicine to treat prostate cancer. This review examined the potential roles of the phytochemicals from P. africana, an endangered, sub-Saharan Africa plant in the chemoprevention and chemotherapy of prostate cancer. In vitro and in vivo studies have provided strong pharmacological evidence for antiprostate cancer activities of P. africana-derived phytochemicals. Through synergistic interactions between different effective phytochemicals, P. africana extracts have been shown to exhibit very strong antiandrogenic and antiangiogenic activities and have the ability to kill tumor cells via apoptotic pathways, prevent the proliferation of prostate cancer cells, and alter the signaling pathways required for the maintenance of prostate cancer cells. However, further preclinical and clinical studies ought to be done to advance and eventually use these promising phytochemicals for the prevention and chemotherapy of human prostate cancer.

Prostate cancer is one of the most common nonskin cancers in men. It is caused by unregulated prostate cell division, which leads to abnormal growth, with the potential to spread to other parts of the body [1]. These neoplastic cells originate from highly specialized cells through a process of regression to an advanced stage. Unlike the normal parent cells, these cells divide continuously, resulting in a tumor. Approximately, 9–11% of men are at risk of clinically suffering from prostate cancer in their life time [2–5]. Prostate cancer is typically androgen-dependent during its initial stages when the hormone androgen binds to the androgen receptor (AR) and then transactivates target genes [6, 7]. Androgen and AR-mediated signaling are therefore crucial for the development and functioning of both the normal prostate and prostate cancer.

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