Archive for the ‘biotech/medical’ category: Page 8

Feb 21, 2024

Scientists unlock key to reversible, non-hormonal male birth control

Posted by in categories: biotech/medical, genetics, sex

The team found that administering an HDAC inhibitor orally effectively halted sperm production and fertility in mice while preserving the sex drive.

Researchers are grappling with the challenge of developing effective male contraceptives as existing attempts to block sperm production, maturation, or fertilization have fallen short, either offering incomplete protection or leading to severe side effects.

Now, a team of researchers at the Salk Institute in the US has developed a novel approach to halting sperm production, which is both non-hormonal and reversible, marking a significant advancement in male contraception research.

Continue reading “Scientists unlock key to reversible, non-hormonal male birth control” »

Feb 21, 2024

Finding a food-cancer connection: How what you eat might affect your cancer risk

Posted by in category: biotech/medical

This study reveals a mechanism by which the environment, diet in this case, can influence cancer risk.

Feb 21, 2024

Self-propelling nanobots shrink bladder tumours in mice by 90%

Posted by in categories: bioengineering, biotech/medical, nanotechnology

Imagine an army of self-propelling, radioisotope-covered particles 2,500 to 10,000 times smaller than a speck of dust that, upon injection into the body, search for and attach themselves to cancerous tumours, destroying them. Sounds like science fiction? Not so for mice with bladder cancer.

Researchers in Spain report that nanoparticles containing radioactive iodine and which propel themselves upon reaction with urea have the ability to distinguish cancerous bladder tumours from healthy tissue. These “nanobots” penetrate the tumour’s extracellular matrix and accumulate within it, enabling the radionuclide therapy to reach its precise target. In a study conducted at the Institute for Bioengineering of Catalonia (IBEC) in Barcelona, mice receiving a single dose of this treatment had a 90% reduction in the size of bladder tumours compared with untreated animals.

This novel approach may one day revolutionize the treatment of bladder cancer. Bladder cancer is the tenth most common cancer in the world, with over 600,000 new cases diagnosed in 2022 and more than 220,000 deaths globally, according to the World Health Organization’s Global Cancer Observatory.

Feb 21, 2024

Sweeping chronic fatigue study brings clues but not clarity to mysterious syndrome

Posted by in categories: biotech/medical, neuroscience

“Megaworkup” revealed brain and immune differences in a small patient group.

Feb 21, 2024

Down syndrome identified in 2600-year-old infants through their DNA

Posted by in category: biotech/medical

Study shows power of paleogenomics to explore incidence of disability in the past.

Feb 21, 2024

Discovery may enable an Effective Long-Term Lupus Treatment

Posted by in category: biotech/medical

Australian researchers have worked out how to fix a defect that causes lupus, and hope their world-first discovery will offer effective long-term treatment.

Published in Nature Communications, the Monash University-led study found a way to reprogram the defective cells of lupus patients with protective molecules from healthy people.

Using human cells, the new treatment restores the protective side of the immune system that prevents autoimmunity, which is when the immune system attacks its own cells.

Feb 21, 2024

Rejuvenate Bio makes progress on osteoarthritis gene therapy for dogs

Posted by in categories: biotech/medical, health

Gene therapy company inks strategic partnership with animal health firm to develop ‘one-dose’ injection treatment for canine osteoarthritis.

Feb 21, 2024

Gallbladder Cancer Treatment

Posted by in category: biotech/medical

Types of treatment for gallbladder cancer include surgery, radiation, and chemotherapy. Treatment of gallbladder cancer that has spread to other parts of the body, cannot be removed by surgery, or has come back after treatment is often within a clinical trial. Find out about treatment options for gallbladder cancer.

Feb 21, 2024

TB vaccine shrinks liver cancer tumors in mice

Posted by in categories: biotech/medical, health

A UC Davis Health study found that a single dose of Bacillus Calmette-Guérin (BCG), the vaccine for tuberculosis (TB), reduced liver tumor burden and extended the survival of mice with liver cancer. The study, published in Advanced Science, is the first to show the promising effects of the vaccine in treating liver cancer.

Hepatocellular carcinoma (HCC) is the most common type of liver cancer. It is also the third leading cause of cancer-related deaths worldwide. Current therapies include surgery, radiotherapy, chemotherapy, immunotherapy and liver transplant. Yet, the therapy outcomes for liver cancer remain bleak.

BCG, the century-old TB vaccine, is derived from the live bacteria Mycobacterium bovis. It is considered safe and widely used around the world.

Feb 21, 2024

Bio-inspired neuroprosthetics: Sending signals the brain can understand

Posted by in categories: biotech/medical, cyborgs, engineering

A few years ago, a team of researchers working under Professor Stanisa Raspopovic at the ETH Zurich Neuroengineering Lab gained worldwide attention when they announced that their prosthetic legs had enabled amputees to feel sensations from this artificial body part for the first time.

Unlike commercial leg prostheses, which simply provide amputees with stability and support, the ETH researchers’ prosthetic device was connected to the sciatic nerve in the test subjects’ thigh via implanted electrodes.

This electrical connection enabled the neuroprosthesis to communicate with the patient’s brain, for example relaying information on the constant changes in pressure detected on the sole of the prosthetic foot when walking. This gave the test subjects greater confidence in their prosthesis—and it enabled them to walk considerably faster on challenging terrains.

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