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Archive for the ‘health’ category: Page 5

Dec 4, 2024

Scientists discover Novel Metabolic Compound that can Regulate Body Weight

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

Researchers at Baylor College of Medicine, Stanford University School of Medicine and collaborating institutions report in the journal Cell the discovery of BHB-Phe, a novel compound produced by the body that regulates appetite and body weight through interactions with neurons in the brain.

Until now, BHB has been known as a compound produced by the liver to be used as fuel. However, in recent years, scientists have found that BHB increases in the body after fasting or exercise, prompting interest in investigating potential beneficial applications in obesity and diabetes.

In the current study, the team at Stanford University led by co-corresponding author Dr. Jonathan Z. Long, associate professor of pathology, discovered that BHB also participates in another metabolic pathway. In this case, an enzyme called CNDP2 joins BHB to amino acids. Furthermore, the most abundant BHB-amino acid, BHB-Phe, can influence body weight and metabolism in animal models.

Dec 4, 2024

Old Battles, New Wars: Rediscovering Encryption’s Power To Prevent Data Breaches

Posted by in categories: cybercrime/malcode, encryption, health

In this respect, I believe regulators have fallen short. In a world facing ongoing cyber threats, the standards for cybersecurity are set surprisingly low that their rules typically only recognize encryption of all stored data as a requirement. This is despite the fact that encryption—not firewalls, monitoring, identity management or multifactor authentication—is the purpose-built technology for protecting data against the strongest and most capable adversaries. Stronger regulations are needed to ensure encryption becomes a mandated standard, not just an optional recommendation.

Fortunately, companies need not wait until regulators realize their folly and can opt to do better today. Some companies already have. They approach data security as an exercise in risk mitigation rather than passing an audit. From this perspective, data encryption quickly becomes an obvious requirement for all their sensitive data as soon as it is ingested into a data store.

Another beneficial development is that encryption has become easier and faster to implement, including the ability to process encrypted data without exposure, a capability known as privacy-enhanced computation. While there will always be some overhead to adopting data encryption, many have found that the return on investment has shifted decisively in favor of encrypting all sensitive data due to its substantial security benefits.

Dec 3, 2024

Clinical trial at Emory University reveals twice-yearly injection to be 99% effective in HIV prevention

Posted by in categories: biotech/medical, health

Results from a recent clinical trial led by physicians at Emory University and Grady Health System indicate that a twice-yearly injection of Lenacapavir offers a 96% reduced risk of HIV infection overall, significantly more effective than the daily oral PrEP.

Dec 3, 2024

NASA ROSES-24 Amendment 76: E.9 Space Biology: Research Studies Draft Text Released

Posted by in categories: biological, health, space

When it is solicited, the research emphases of E.9 Space Biology: Research Studies will fall under two broad categories: Precision Health and Space Crops.

For Precision Health-focused studies, investigators may propose to use any non-primate animal model system, and any appropriate cell/tissue culture/ microphysiological system/ organoid or microbial models, that are supported by the chosen platform. For Space Crop-focused studies, applicants may propose to use any plant model system, and when appropriate, any microbial or plant and microbial model systems that are supported by the chosen platform.

This opportunity will include five different Project Types: Research Investigations, Early Career Research Investigations, New NASA Investigators, GeneLab Analytical Investigations, and Tissue Sharing Investigations.

Dec 3, 2024

Postdoctoral Fellow — Adaptive Immunity and Immunoregulation Section

Posted by in categories: biotech/medical, food, health

The Adaptive Immunity and Immunoregulation Section (AIIS) in the Laboratory of Allergic Diseases at #NIAID is seeking an exceptional candidate for a postdoctoral fellowship position.


The National Institute of Allergy and Infectious Diseases (NIAID), one of the largest institutes in the National Institutes of Health (NIH), and part of the Department of Health and Human Services (HHS), conducts and supports basic and applied research to better understand, treat, and ultimately prevent infectious, immunologic, and allergic diseases.

A postdoctoral fellowship position is available immediately in the Adaptive Immunity and Immunoregulation Section (AIIS) within the Laboratory of Allergic Diseases, NIAID. AIIS seeks highly motivated and collaborative candidates with a strong publication record who are capable of independent reasoning and excited about learning new technologies.

AIIS aims to define the cellular and molecular mechanisms controlling the balance between protective and pathogenic adaptive immune responses to allergens and pathogens. With a particular focus on memory T and B cells and T follicular helper (Tfh) cells, the lab utilizes state-of-the-art cellular and molecular approaches, including in vivo models of infection and allergy, multi-color flow cytometry, adoptive transfer experiments, cell fate tracking experiments, bone marrow chimeras, parabiosis surgery, imaging, conditional knockout and transgenic models, RNA-Seq, and single-cell technologies to characterize memory B-and T-cell responses in different models of food and respiratory allergens and infections.

Dec 2, 2024

Study reveals how stem cells respond to environmental signals, with implications for IBD and colorectal cancer

Posted by in categories: biotech/medical, chemistry, health

A new study from The Hospital for Sick Children (SickKids) and Institut Curie reveals how stem cells sense and respond to their environment, with implications for inflammatory bowel disease and colorectal cancer.

Stem cells constantly adapt to their environment to maintain organ and tissue health, informed by and physical forces. When they do not function as intended, stem cells can result in a number of health conditions including (IBD) and colorectal (bowel) cancer, where they continue to divide until a tumor forms.

Until now, how stem cells sense the physical forces around them has remained unclear, but novel findings published in Science led by Dr. Meryem Baghdadi, a former SickKids postdoctoral researcher, Dr. Tae-Hee Kim at SickKids and Dr. Danijela Vignjevic at Institut Curie, has revealed that stem cells depend on two , called PIEZO1 and PIEZO2, for their survival.

Dec 2, 2024

Newfound mechanism may explain why some cancer treatments boost risk of heart disease

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

A cancer therapy that prompts the body’s immune defenses against viruses and bacteria to attack tumors can make patients more vulnerable to heart attack and stroke. A possible explanation for this side effect is that the treatment interferes with immune regulation in the heart’s largest blood vessels, a new study suggests.

Led by researchers at NYU Langone Health and its Perlmutter Cancer Center, the new work focused on a potent class of cancer-fighting drugs called . These medications work by blocking molecules embedded on the surface of cells—immune checkpoints—which normally serve as “brake pedals” that prevent excess immune activity, or inflammation. Some tumors are known to hijack these checkpoints to weaken the body’s defenses, so by blocking the checkpoints, the treatments enable the to kill .

However, this treatment type may also trigger damaging levels of inflammation in the heart, brain, stomach, and other organs, the researchers say. For example, past studies have shown that about 10% of those with atherosclerosis, the buildup of hardened fatty deposits (plaques) within artery walls, have a heart attack or stroke following . However, the specific mechanisms behind this issue had until now remained unclear.

Dec 2, 2024

Six Plant-Based Compounds Show Neuroprotective Potential

Posted by in categories: food, health, neuroscience

Summary: Researchers identified specific plant compounds that provide antioxidant and neuroprotective effects, contributing to brain health beyond basic nutrition. By analyzing plant-based foods like lemon balm, sage, and elderberry, scientists linked compounds such as phenolics and terpenes to benefits like reducing oxidative stress and scavenging harmful reactive species.

Quercetin-rich foods, such as Queen Garnet plum and clove, showed strong potential to prevent neuron-like cell damage. This study sheds light on how plant-based diets and supplements could support brain health and manage neuroinflammation-related conditions.

Dec 1, 2024

Super-adhesive patches can adapt to different motions for enhanced skin interaction

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

A research team affiliated with UNIST has unveiled an ultra-strong adhesive patch platform that adheres effectively to rough skin surfaces and shows remarkable motion adaptiveness during dynamic body movements, all while offering irritation-free removal on demand. The key to this technology lies in the surface adaptability inspired by barnacles and armadillo carapaces, which feature a tessellated structure that balances rigidity and flexibility.

The team, led by Professor Hoon Eui Jeong from the Department of Mechanical Engineering and Professor Jae Joon Kim from the Department of Electrical Engineering at UNIST, along with researchers from the National Institute of Ecology (NIE), has introduced a highly adhesive, detachable, and stretchable skin patch, known as the Motion Adaptive Tessellation Patch.

This innovative technology is garnering attention for its potential to facilitate the commercialization of wearable electronic devices, such as health care monitoring systems and transdermal drug delivery systems. The research is published in the journal Advanced Materials.

Dec 1, 2024

Scientists Discover a Protein Key to Preventing Muscle Breakdown

Posted by in categories: genetics, health, nanotechnology

Chaperones are molecular machines that help proteins in the cell fold into their proper shape. Among them, UNC45 plays a critical role in muscle health by ensuring the proper function of myosin, a key protein essential for muscle movement. UNC45 manages this by directing damaged myosin to degradation pathways while guiding correctly folded myosin toward assembly. Researchers from Tim Clausen’s lab at the IMP have uncovered the mechanisms behind this process, providing new insights into how disruptions in myosin quality control can lead to serious muscle disorders. Their findings have been published in Nature Communications.

Muscle movement relies on the interaction between two key proteins: actin and myosin. These proteins slide past each other to generate the force needed for movement. For this process to work efficiently, actin and myosin must be precisely organized within the sarcomere, the basic structural and functional unit of muscle cells. This arrangement is crucial for maintaining muscle health, particularly during exercise, periods of stress, and as the body ages.

To ensure proteins achieve their correct shape, cells use specialized molecular assistants called chaperones. These chaperones act as caretakers, helping proteins fold and assemble correctly. For myosin, which makes up about 16% of the total protein in muscle cells, proper structure is especially important. One critical chaperone for this task is UNC45, found in all eukaryotic organisms. Identified through genetic studies, UNC45 plays a vital role in shaping myosin and preserving the integrity of the sarcomere. The importance of UNC45 is evident in severe muscle disorders, known as myopathies, which can result from mutations in the UNC45 gene.

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