Lifeboat Foundation: Safeguarding Humanity
Toggle light / dark theme

Blog

Category: biotech/medical – Page 70

Bat-Inspired AI-Powered Echolocation Technology Helps Drones Navigate in Darkness

In a remarkable leap forward for machine navigation, researchers funded by the U.S. Army have developed a synthetic echolocation system inspired by the natural sonar abilities of bats and dolphins.

This cutting-edge technology enables drones, autonomous vehicles, and robots to detect and identify objects in complete darkness, relying not on traditional visual sensors like cameras or LIDAR, but on ultrasonic pulses processed by artificial intelligence (AI). The result is a system that promises to transform how machines operate in low-visibility environments, offering new possibilities for military operations and civilian applications alike. From navigating smoke-filled battlefields to aiding search and rescue missions in disaster zones, this bioinspired innovation could reshape the future of autonomous systems.

The U.S. Army’s investment in this research, supported by the Army Research Office and the DEVCOM Ground Vehicle Systems Center, reflects a growing need for machines that can function effectively where human senses or conventional technology falter. By drawing on the way bats and dolphins use sound to perceive their surroundings, this system provides a robust alternative to light-dependent sensors, which struggle in conditions such as darkness, fog, or dust. Its potential extends beyond defence, with researchers envisioning its use in fields as varied as medical imaging, industrial inspection, and underwater exploration. What makes this development particularly exciting is not just its versatility, but the clever way it was created—using simulated data to train AI, paving the way for a cost-effective and adaptable solution.

Scientists reconstruct 10,500-year-old woman’s face using DNA

Researchers studying the remains of a prehistoric woman who lived around 10,500 years ago in what is now Belgium have produced a reconstruction of her face using ancient DNA.

A team led by scientists from Ghent University found that the woman would have had blue eyes and slightly lighter skin than most other people from the Mesolithic period in Western Europe who have been analyzed to date, according to a statement from the university on Tuesday.

Isabelle De Groote, an archaeologist at Ghent University who leads the research project on Mesolithic Belgium, told CNN that the woman came from the same population group as the Cheddar Man, who lived in what is now the United Kingdom at around the same time, but had lighter skin.

Hypoxia ameliorates neurodegeneration and movement disorder in a mouse model of Parkinson’s disease

Parkinson’s disease (PD) involves toxic protein buildup and energy failure in neurons. Continuously breathing low-oxygen air protected mice from PD-like neuronal loss and reversed symptoms, even after they began, suggesting that hypoxia may protect neurons.

Parkinson’s Link to Gut Bacteria Hints at an Unexpected, Simple Treatment

Researchers have suspected for some time that the link between our gut and brain plays a role in the onset of Parkinson’s disease.

A recent study identified gut microbes likely to be involved and linked them with decreased riboflavin (vitamin B2) and biotin (vitamin B7), suggesting an unexpectedly simple treatment that may help: B vitamins.

“Supplementation therapy targeting riboflavin and biotin holds promise as a potential therapeutic avenue for alleviating PD symptoms and slowing disease progression,” Nagoya University medical researcher Hiroshi Nishiwaki said when the study was published in May 2024.

Denali antibody clears amyloid plaques without dangerous brain bleeds in Alzheimer’s mouse model

Ever since Biogen and Eisai’s Aduhelm (aducanemab) was approved in 2021 as the first antibody to treat Alzheimer’s disease by clearing amyloid plaques from the brain, the modality has been dogged by a serious side effect: brain bleeding called amyloid-related imaging abnormalities, or ARIA.

Now, researchers from Denali Therapeutics have debuted an antibody that can cross the blood-brain barrier and attack amyloid, but without triggering this potentially life-threatening complication.

Synthetic, shelf-stable blood developed by Maryland scientist could save lives in emergencies

A Maryland scientist developed synthetic blood that could save lives when seconds count and fresh blood is out of reach.

Dr. Allan Doctor is a professor-scientist at the University of Maryland School of Medicine. His shelf-stable synthetic blood product is called ErythroMer, under development by KaloCyte.

The blood alternative could be used in the field without a refrigerator or a donor match, he said.

In a world breakthrough, Israeli researchers grow first long-term human kidney in lab

In a world first, researchers from Sheba Medical Center and Tel Aviv University have successfully grown human kidney organoids – a synthetic 3D organ culture – using kidney tissue stem cells.

The synthetic kidney organs matured and stayed stable for 34 weeks, which is the longest-lasting and purest set of kidney organoids ever developed.

Prof. Benjamin Dekel, Director of the Pediatric Nephrology Unit and the Stem Cell Research Institute at the Safra Children’s Hospital at Sheba Medical Center and Director of the Sagol Center for Regenerative Medicine at Tel Aviv University led the study. Doctoral student Dr. Michael Namestannikov, a graduate of the Physician-Researcher track at Tel Aviv University’s Faculty of Medicine, and Dr. Osnat Cohen-Sontag, a research associate at Sheba Medical Center, participated in the research.

What Is Chikungunya? A Guide to The Virus Spreading in China

Cases of chikungunya fever are rising in southern China, prompting local authorities to take measures to curb its spread.

Here is what you need to know about the disease:

What is chikungunya?

Chikungunya is caused by a virus that can be passed to humans by infected mosquitoes, with most cases occurring in Africa, Asia and the Americas.

Overlooked microproteins could treat obesity and metabolic disorders

The obesity rate has more than doubled in the last 30 years, affecting more than one billion people worldwide. This prevalent condition is also linked to other metabolic disorders, including type 2 diabetes, cardiovascular diseases, chronic kidney disease, and cancers.

Current treatment options include lifestyle interventions, bariatric surgery, and GLP-1 drugs like Ozempic or Wegovy, but many patients struggle to access or complete these treatments or to maintain their weight loss afterward.

Salk Institute scientists are looking for a new treatment strategy in microproteins, an understudied class of molecules found throughout the body that play roles in both health and disease.

Targeting sleeping tumor cells: Oncogene location may determine neuroblastoma’s resistance to cancer therapy

Neuroblastoma can be a particularly insidious cancer. In about half of all cases, tumors regress, even without therapy. In the other half, tumors grow very quickly. These tumors often respond well to chemotherapy at first, but usually return after one to two years. A characteristic feature of such aggressive neuroblastoma cells is an abnormally high number of copies of the oncogene MYCN.

A team led by Dr. Jan Dörr and Professor Anton Henssen from the Experimental and Clinical Research Center (ECRC), a joint institution of Charité—Universitätsmedizin Berlin and the Max Delbrück Center, has now discovered that the location of the MYCN gene plays an important role in the aggressiveness of neuroblastoma: If it is located outside chromosomes, enter a dormant state and thereby render themselves immune to therapy.

In Cancer Discovery, the research team proposes a new treatment strategy that targets these dormant . Their approach has already proven successful in a .

/* */