ScienceDaily: Top Health News


Can antibiotics treat human diseases in addition to bacterial infections?

Posted: 24 May 2021 03:31 PM PDT

A new study shows that eukaryotic ribosomes can be modified to respond to antibiotics in the same way that prokaryotic ribosomes do.

Chemical changes to peptide siRNA-carrier enhance gene silencing for future cancer drugs

Posted: 24 May 2021 01:18 PM PDT

Researchers found a modified peptide carrier that was delivering the siRNA drug by adhering to and potentially moving along cell filopodia, leading to more efficient cell entry and improved gene silencing.

Sterile male mosquitoes created using CRISPER/Cas9

Posted: 24 May 2021 01:18 PM PDT

Mosquitoes are one of humanity's greatest nemeses, estimated to spread infections to nearly 700 million people per year and cause more than one million deaths.

Fat around the heart linked to increased risk of heart failure

Posted: 24 May 2021 01:18 PM PDT

Study shows risk doubles in women and goes up by 50 percent in men.

Full-genome CRISPR screen reveals surprising ways neurons survive oxidative stress

Posted: 24 May 2021 01:18 PM PDT

When a single gene in a cell is turned on or off, its resulting presence or absence can affect the function and survival of the cell. Researchers have now successfully catalogued this effect in the human neuron by separately toggling each of the 20,000 genes in the human genome.

How tendons become stiffer and stronger

Posted: 24 May 2021 01:18 PM PDT

Researchers deciphered the cellular mechanisms through which tendons can adapt to mechanical stresses. People who carry a certain variant of a gene that is key to this mechanism show improved jumping performance.

Bile acids trigger satiety in the brain

Posted: 24 May 2021 01:17 PM PDT

Scientists have discovered a new role for bile acids: they curb appetite by entering the brain. Their findings provide new insights into the signals and mechanisms by which satiety is controlled and may have implications for treating obesity.

With a kitchen freezer and plant cellulose, an aerogel for therapeutic use is developed

Posted: 24 May 2021 01:17 PM PDT

A new low-cost and sustainable technique would boost the possibilities for hospitals and clinics to deliver therapeutics with aerogels, a foam-like material now found in such high-tech applications as insulation for spacesuits and breathable plasters.

Game on: Game-based program boosts physical activity among diabetes patients

Posted: 24 May 2021 01:17 PM PDT

Researchers showed that adding gamification with either competition or support increased physical activity for patients with Type 2 diabetes.

Step-closer to nasal spray drug delivery for Parkinson's disease

Posted: 24 May 2021 01:17 PM PDT

Scientists have made significant progress in the development of a nasal spray treatment for patients with Parkinson's disease.

Specialized inhibitory cluster gates plasticity in fear learning

Posted: 24 May 2021 01:17 PM PDT

Researchers have uncovered a new role for a distinct inhibitory cell cluster in the amygdala, acting to dynamically modulate synaptic connections during fear learning.

Simple diagnostic tool predicts individual risk of Alzheimer's

Posted: 24 May 2021 01:17 PM PDT

Researchers at Lund University in Sweden have developed an algorithm that combines data from a simple blood test and brief memory tests, to predict with great accuracy who will develop Alzheimer's disease in the future. The findings are published in Nature Medicine.

Evacuating under dire wildfire scenarios

Posted: 24 May 2021 01:16 PM PDT

As climate change intensifies, wildfires in the West are behaving in ways that were unimaginable in the past -- and the common disaster response approaches are woefully unprepared for this new reality. Researchers now proposed a framework for simulating dire scenarios, which the authors define as scenarios where there is less time to evacuate an area than is required.

Analyzing the impact of college gameday homes in the American south

Posted: 24 May 2021 08:02 AM PDT

Absentee property ownership in many small college football towns has a negative impact on permanent residents of those communities, according to a new study. The research is the first known attempt to quantify and map local geographies of gameday home investments.

Study finds women with osteoporosis and low bone density are at increased risk of hearing loss

Posted: 24 May 2021 08:02 AM PDT

Researchers found that risk of subsequent moderate or worse hearing loss was up to 40 percent higher in study participants with osteoporosis or LBD.

Helping adults navigate the decision to move back in with parents

Posted: 24 May 2021 08:02 AM PDT

A recent study offers insight into how adults can navigate the often awkward experience of moving back in with their parents.

Clean water and toilets for healthy shelters

Posted: 24 May 2021 08:02 AM PDT

The devastating Great East Japan Earthquake on March 11, 2011 displaced some 500,000 people to evacuation shelters. A research team that conducted regular visits to shelters to assess their status and inhabitants well-being have analyzed their data and found that about half of shelters had inadequate clean tap water and toilets, leading to worsening health outcomes for inhabitants.

Diabetes vaccine gives promising results in a genetic subgroup

Posted: 24 May 2021 08:02 AM PDT

A clinical study has investigated whether immunotherapy against type 1 diabetes can preserve the body's own production of insulin. The results suggest that injection of a protein, GAD, into lymph nodes can be effective in a subgroup of individuals.

Digital Twin technology a 'powerful tool' but requires significant investment, say experts

Posted: 24 May 2021 08:02 AM PDT

Healthcare and aerospace experts have said advances in digital twin technology make it a powerful tool for facilitating predictive and precision medicine and enhancing decision-making for aerospace systems.

Obesity protects against death in severe bacterial infection

Posted: 24 May 2021 08:01 AM PDT

For many diseases, overweight and obesity are risk factors. But now a study shows that a higher BMI may be linked to higher survival rates in patients hospitalized for severe bacterial infections.

Supersensitive connection causes hatred of noises

Posted: 24 May 2021 08:01 AM PDT

An increased connectivity in the brain between the auditory cortex and the motor control areas related to the face, mouth and throat has been discovered in people with misophonia. Their hatred of 'trigger noises' can lead to an extreme reaction including anger and disgust. This is the first time such a connection in the brain has been identified and it offers a new path for therapies.

Virus infection cycle revealed in dynamic detail

Posted: 24 May 2021 08:01 AM PDT

A critical process in the infection cycle of viruses has been revealed for the first time in dynamic detail using pioneering plant-based technology.

Mild COVID-19 induces lasting antibody protection, study finds

Posted: 24 May 2021 08:01 AM PDT

People who have had a mild case of COVID-19 are left with long-term antibody protection against future disease, according to a new study.

Telomere length, a longevity measure, may be determined early in life

Posted: 24 May 2021 08:01 AM PDT

One of the first studies to examine telomere length (TL) in childhood finds that the initial setting of TL during prenatal development and in the first years of life may determine one's TL throughout childhood and potentially even into adulthood or older age. The study also finds that TL decreases most rapidly from birth to age 3, followed by a period of maintenance into the pre-puberty period, although it was sometimes seen to lengthen.

Metabolic hormone 'leptin' linked to poor vaccine response

Posted: 24 May 2021 06:20 AM PDT

Reduced levels of a metabolic hormone known as leptin is linked to poor vaccine antibody responses in the general population, a study has found.

No link between milk and increased cholesterol according to new study of 2 million people

Posted: 24 May 2021 06:20 AM PDT

Regular consumption of milk is not associated with increased levels of cholesterol, according to new research of nearly 2 million people.

A natural food supplement may relieve anxiety, study suggests

Posted: 24 May 2021 06:20 AM PDT

A natural food supplement reduces anxiety in mice, according to a new study. The plant-derived substance, beta-sitosterol, was found to produce this effect both on its own and in synergic combination with an antidepressant.

Early research suggests climate change could lead to more stillbirths

Posted: 24 May 2021 06:20 AM PDT

Scientists are investigating whether rising global temperatures may lead to more stillbirths, saying further study is needed on the subject as climates change.

Explanatiion of how religious beliefs may be formed

Posted: 24 May 2021 06:20 AM PDT

Feeling anxious can direct our attention and memory toward supernatural beings such as gods, a new study has found.

Accurate evaluation of CRISPR genome editing

Posted: 24 May 2021 06:20 AM PDT

Researchers have developed a new software tool to detect, evaluate and quantify off-target editing activity, including adverse translocation events that can cause cancer. The software is based on input taken from a standard measurement assay, involving multiplexed PCR amplification and Next-Generation Sequencing (NGS).

Cancer treatments may accelerate cellular aging

Posted: 24 May 2021 06:20 AM PDT

New research indicates that certain anti-cancer therapies may hasten cellular aging, where changes in the DNA of patients may contribute to greater inflammation and fatigue.

Risk of second stroke can be reduced with prevention efforts based on cause of first stroke

Posted: 24 May 2021 06:19 AM PDT

Having a stroke caused by blocked blood vessels or a transient ischemic attack (TIA) greatly increases your chances of having a future stroke. Identifying the cause or causes of the first stroke is key to developing strategies to prevent additional strokes. Managing blood pressure levels, reducing or quitting smoking, eating a healthy diet, and regular physical activity will reduce the risk of a second stroke, along with managing conditions such as Type 2 diabetes and high cholesterol.

COVID-19 mortality associated with two signs easily measured at home, study finds

Posted: 24 May 2021 06:19 AM PDT

A study of 1,095 patients hospitalized with COVID-19 found that two easily measured signs of health -- respiration rate and blood-oxygen saturation -- predict higher mortality.

Defective gene slows down brain cells

Posted: 24 May 2021 06:19 AM PDT

Although many forms of autism spectrum disorder (ASD) are thought to have genetic causes, the cellular and molecular functions of the identified genes remain unclear. Scientists studied a high-risk gene and discovered its important role during a critical phase of brain development.

Potential new treatment target in the fight against COVID-19

Posted: 24 May 2021 06:19 AM PDT

A new study reveals how therapies targeting a molecular chaperone called GRP78 might offer additional protection against COVID-19 and other coronaviruses that emerge in the future.

Implantable piezoelectric polymer improves controlled release of drugs

Posted: 24 May 2021 06:19 AM PDT

A membrane made from threads of a polymer commonly used in vascular sutures can be loaded with therapeutic drugs and implanted in the body, where mechanical forces activate the polymer's electric potential and slowly release the drugs. The novel system overcomes the biggest limitations of conventional drug administration and some controlled release methods, and could improve treatment of cancer and other chronic diseases.

Face masks effectively limit SARS-CoV-2 transmission

Posted: 21 May 2021 06:45 AM PDT

A new study shows how face masks reduce the effective reproduction number of COVID-19, and why their efficacy varies between different environments under virus-limited and virus-rich conditions.

A novel defense mechanism for SARS-CoV-2 discovered

Posted: 21 May 2021 06:44 AM PDT

Scientists have discovered a novel defensive response to SARS-CoV-2 that involves the viral pattern recognition receptor RIG-I. Upregulating expression of this protein could strengthen the immune response in COPD patients.

Antioxidant protein inside the cell worsens inflammation outside

Posted: 20 May 2021 11:53 AM PDT

A protein that provides essential protection against free radicals inside the cell provokes damaging inflammation when released outside, activating immune cells and worsening damage following a stroke, according to a new study.

Do COVID-19 vaccines care whether you're female or male?

Posted: 20 May 2021 11:53 AM PDT

A researcher is studying and raising awareness about the role of sex in the efficacy of vaccines that make use of nanomedicine.