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Archive for the ‘biotech/medical’ category: Page 26

Nov 6, 2024

Scientists Create a Potent Bacterial Anti-Cancer Vaccine

Posted by in category: biotech/medical

A new study describes a novel anti-cancer vaccine based on antigen-producing bacteria that can tackle solid and metastatic cancers [1].

Invading an invader

Years ago, scientists discovered that bacteria can colonize tumors [2]. Some bacteria are drawn to the tumor microenvironment due to factors such as necrotic tissue, hypoxia, and nutrient availability. For example, Clostridium species prefer anaerobic conditions and have been explored in tumor-targeting therapies. Salmonella and E. coli strains have also shown an affinity for tumors [3].

Nov 6, 2024

Research team uses the human body to power wearables — addresses major obstacle of conventional batteries

Posted by in categories: biotech/medical, wearables

Future wearables won’t need to get under your skin.

Nov 6, 2024

Soft Polymer Wireless Devices Can Gently Wrap Around Neurons

Posted by in categories: biotech/medical, neuroscience, wearables

A study presents battery-free, polymer-based wearable devices that wrap around neurons, allowing for real-time monitoring and modulation of cellular activity. This innovation aims to restore neuronal function in conditions like multiple sclerosis.

Nov 6, 2024

Breakthrough In Growing Lip Cells In The Lab Could Help Develop Medical Treatments

Posted by in categories: biotech/medical, innovation

More than paying lip service, the cells may offer new opportunities to research and treat various lip conditions.

Nov 6, 2024

New high-speed 3D bioprinter uses acoustics to print human tissues

Posted by in categories: bioprinting, biotech/medical, neuroscience

This development comes from…


Researchers have designed a high-speed 3D bioprinter to accurately print human tissues.

Continue reading “New high-speed 3D bioprinter uses acoustics to print human tissues” »

Nov 5, 2024

A “wearable” device for individual neurons can measure electrical activity in the brain

Posted by in categories: biotech/medical, neuroscience, wearables

MIT researchers have developed a battery-free, subcellular-sized device made of polymer designed to measure and modulate a neuron’s electrical and metabolic activity. When the device is activated by light, it can gently wrap around the neuron cell’s axons and dendrites without damaging the cells.

Scientists want to inject thousands of these tiny wireless devices into a patient’s central nervous system and then actuate them noninvasively using light. The light would penetrate the tissue and allow precise control of the devices, and thereby restore function in cases of neuronal degradation like multiple sclerosis (MS).

The MIT researchers developed these thin-film devices from a azobenzene, a soft polymer that readily reacts to light. Thin sheets of azobenzene roll into a cylinder when exposed to light, which enables them to wrap around cells. Researchers can control the direction and diameter of the rolling by changing the intensity and polarization of the light, producing a microtube with a diameter smaller than one micrometer.

Nov 5, 2024

Gene therapy Improves Eye Health and Reduces the Need for Anti-VEGF Injections in Age-Related Macular Degeneration

Posted by in categories: bioengineering, biotech/medical, genetics, life extension

RegenxBio, a publicly-traded biotech firm, released data this week from a Phase 2 clinical trial designed to test its leading genetic therapy product in patients with bilateral wet age-related macular degeneration (AMD). AMD is characterized by abnormal growth of blood vessels in the retina, and is a leading cause of loss of vision in elderly populations globally.

ABBV-RGX-314, developed in collaboration with AbbVie, offers the potential of a one-time treatment for wet AMD and other retinal conditions, including diabetic retinopathy. This is in contrast to existing treatments which rely on repeated intraocular injections of drugs that inhibit a protein known as Vascular Endothelial Growth Factor (VEGF), a protein responsible for the formation of new retinal blood vessels.

The ABBV-RGX-314 therapy is based on a an AAV8 viral vector as a delivery system. The AAV8 platform has been genetically engineered to encode an antibody that can inhibit VEGF for the long-term.

Nov 5, 2024

Scientists believe popular drug could end the mysterious outbreak of colon cancer in young people

Posted by in categories: biotech/medical, food

Most recently, 90s heartthrob and Dawson’s Creek star James Van Der Beek announced he’d been diagnosed with colorectal cancer at the age of just 47.

The rise is mysterious, but experts suspect ultra-processed foods, pollution and the over use of antibiotics could be driving microscopic cancer-causing changes in the body’s cells.

Now, a team of scientists across five nations, including at King’s College London, have been given £20 million by charities including Cancer Research UK to fund fresh studies that will begin early next year, The Times reported.

Nov 5, 2024

Researchers uncover focal adhesions as subcellular signaling hubs in PI3K-AKT pathway

Posted by in category: biotech/medical

The phosphatidylinositol 3-kinase (PI3K)-AKT signaling pathway is one of the most critical and extensively investigated signaling pathways. It is the central regulator of various cellular processes including cell growth, proliferation, metabolism, and survival. Hyperactivation of PI3K-AKT signaling is highly related to a significant number of human diseases, particularly cancers.

Nov 5, 2024

Hydrogen Sulfide and Gut Microbiota: Their Synergistic Role in Modulating Sirtuin Activity and Potential Therapeutic Implications for Neurodegenerative Diseases

Posted by in categories: biotech/medical, life extension, neuroscience

The intricate relationship between hydrogen sulfide (H2S), gut microbiota, and sirtuins (SIRTs) can be seen as a paradigm axis in maintaining cellular homeostasis, modulating oxidative stress, and promoting mitochondrial health, which together play a pivotal role in aging and neurodegenerative diseases. H2S, a gasotransmitter synthesized endogenously and by specific gut microbiota, acts as a potent modulator of mitochondrial function and oxidative stress, protecting against cellular damage. Through sulfate-reducing bacteria, gut microbiota influences systemic H2S levels, creating a link between gut health and metabolic processes. Dysbiosis, or an imbalance in microbial populations, can alter H2S production, impair mitochondrial function, increase oxidative stress, and heighten inflammation, all contributing factors in neurodegenerative diseases such as Alzheimer’s and Parkinson’s.

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