A team of researchers working at China’s Fourth Hospital of Harbin Medical University has developed a new kind of male contraceptive that is easily reversed. In their paper published in the journal ACS Nano, the group describes their approach, the elements that went into making their contraceptive and how well it worked when tested on rats.
The hydrogel has already been approved for use in the body for other purposes, and has been deemed safe. The researchers added thioketals to the gel, which prior research has shown become disassociated when exposed to molecules containing oxygen. They also added a small amount of titanium dioxide, which releases oxygen when blasted with ultrasound. In practice, the hydrogel is injected into the vas deferens, which are the tubes that carry sperm from the testicles to the penis during ejaculation. Blocking them blocks the sperm, preventing them from being mixed with semen, and thus preventing the ability of the patient to impregnate a woman. Removing the hydrogel is done by blasting the area with a small amount of ultrasound. This releases the oxygen in the titanium dioxide, which in turn breaks down the gel, allowing it to be washed out via the penis.
The researchers tested their hydrogel with male lab rats. Some were given the hydrogel; others got a vasectomy, and others yet got saline. After they healed, the rats were allowed to mate with females. Only those that were given the saline produced offspring. The researchers also removed the gel from the test rats using an ordinary ultrasound device and found that it fully restored their ability to reproduce. More testing is required to ensure its safety before trials can begin in humans.
News
In a first for China, Neuracle’s implantable brain-computer interface wins approval
In a landmark development, Neuracle Medical Technology has secured the country’s first-ever approval for an implantable brain-computer interface (BCI) system designed to restore hand motor function in patients with spinal cord injuries, in a [...]
A Cambridge Lab Mistake Reveals a Powerful New Way to Modify Drug Molecules
A surprising lab discovery reveals a light-powered way to tweak complex drugs faster, cleaner, and later in development. Researchers at the University of Cambridge have created a new technique for altering complex drug molecules [...]
New book from NanoappsMedical Inc – Molecular Manufacturing: The Future of Nanomedicine
This book explores the revolutionary potential of atomically precise manufacturing technologies to transform global healthcare, as well as practically every other sector across society. This forward-thinking volume examines how envisaged Factory@Home systems might enable the cost-effective [...]
Scientists Discover Simple Saliva Test That Reveals Hidden Diabetes Risk
Researchers have identified a potential new way to assess metabolic health using saliva instead of blood. High insulin levels in the blood, known as hyperinsulinemia, can reveal metabolic problems long before obvious symptoms appear. It is [...]
One Nasal Spray Could Protect Against COVID, Flu, Pneumonia, and More
A single nasal spray vaccine may one day protect against viruses, pneumonia, and even allergies. For decades, scientists have dreamed of creating a universal vaccine capable of protecting against many different pathogens. The idea [...]
New AI Model Predicts Cancer Spread With Incredible Accuracy
Scientists have developed an AI system that analyzes complex gene-expression signatures to estimate the likelihood that a tumor will spread. Why do some tumors spread throughout the body while others remain confined to their [...]
Scientists Discover DNA “Flips” That Supercharge Evolution
In Lake Malawi, hundreds of species of cichlid fish have evolved with astonishing speed, offering scientists a rare opportunity to study how biodiversity arises. Researchers have identified segments of “flipped” DNA that may allow fish to adapt rapidly [...]
Our books now available worldwide!
Online Sellers other than Amazon, Routledge, and IOPP Indigo Global Health Care Equivalency in the Age of Nanotechnology, Nanomedicine and Artifcial Intelligence Global Health Care Equivalency In The Age Of Nanotechnology, Nanomedicine And Artificial [...]
Scientists Discover Why Some COVID Survivors Still Can’t Taste Food Years Later
A new study provides the first direct biological evidence explaining why some people continue to experience taste loss long after recovering from COVID-19. Researchers have uncovered specific biological changes in taste buds that could help [...]
Catching COVID significantly raises the risk of developing kidney disease, researchers find
Catching Covid significantly raises the risk of developing deadly kidney disease, research has shown. The virus was found to increase the chances that patients will develop the incurable condition by around 50 per cent. [...]
New Toothpaste Stops Gum Disease Without Harming Healthy Bacteria
Researchers have developed a targeted approach to combat periodontitis without disrupting the natural balance of the oral microbiome. The innovation could reshape how gum disease is treated while preserving beneficial bacteria. The human mouth [...]
Plastic Without End: Are We Polluting the Planet for Eternity?
The Kunming Montreal Global Biodiversity Framework calls for the elimination of plastic pollution by 2030. If that goal has been clearly set, why have meaningful measures that create real change still not been implemented? [...]
Scientists Rewire Natural Killer Cells To Attack Cancer Faster and Harder
Researchers tested new CAR designs in NK-92 cells and found the modified cells killed tumor cells more effectively, showing stronger anti-cancer activity. Researchers at the Ribeirão Preto Blood Center and the Center for Cell-Based [...]
New “Cellular” Target Could Transform How We Treat Alzheimer’s Disease
A new study from researchers highlights an unexpected player in Alzheimer’s disease: aging astrocytes. Senescent astrocytes have been identified as a major contributor to Alzheimer’s progression. The cells lose protective functions and fuel inflammation, particularly in [...]
Treating a Common Dental Infection… Effects That Extend Far Beyond the Mouth
Successful root canal treatment may help lower inflammation associated with heart disease and improve blood sugar and cholesterol levels. Treating an infected tooth with a successful root canal procedure may do more than relieve [...]
Microplastics found in prostate tumors in small study
In a new study, researchers found microplastics deep inside prostate cancer tumors, raising more questions about the role the ubiquitous pollutants play in public health. The findings — which come from a small study of 10 [...]
