PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

New research examines how HIV infections occur on the molecular level

2011-01-19
(Press-News.org) The UK's National Physical Laboratory (NPL) with the University of Edinburgh and IBM's TJ Watson Research Center have published new research about the structure of an HIV-1 protein that could help to develop new drugs to stop the virus infecting healthy cells.

The research provides a new insight into how the changes in structure of a small part of an HIV protein (a membrane proximal peptide) may alter the infection of the virus into healthy cells. The team was able to observe key changes in this part of the protein implicated in the early stages of the infection by using a combination of powerful experimental and computational tools. This is the first attempt to demonstrate that the inducible binding of the peptide with membrane-like surfaces can serve as a responsive molecular anchor underpinning HIV fusion to target cells.

This information is important as it gives us a better understanding of how HIV infections take hold at the molecular level. Drug designers could use this information to develop treatments that stop HIV from entering a healthy cell and infecting it.

This research is a part of the NPL-led international research project 'Multiscale measurements in biophysical systems', which is jointly funded by NPL and the Scottish Universities Physics Alliance.

The team's journal article detailing this research was selected as the featured article in the January 2011 issue of the journal Physical Chemistry Chemical Physics – the Royal Society of Chemistry's premier forum for physical chemistry research.

INFORMATION:

END



ELSE PRESS RELEASES FROM THIS DATE:

Revealed: 48-hour 'scramble' to discredit MMR concerns

2011-01-19
A series of denials and a failure to formally investigate allegations of misconduct in Andrew Wakefield's MMR research meant the public was misled about the credibility of the paper for six years. Dr Fiona Godlee, BMJ Editor in Chief, says the UK has consistently failed to take research misconduct seriously. She calls on the UK government to establish mandatory oversight of clinical research integrity within the NHS, as happens for publicly funded research in the USA. "This case reveals major flaws in pre and post-publication peer review," she says. "Allegations of ...

Nanotech medicine

2011-01-19
According to the World Health Organisation (WHO), an estimated 322,000 deaths globally per year are linked to severe injuries from fire and in many of these cases death could have been avoided with surgical intervention. In this type of intervention, when major burn patients have insufficient skin left to graft on the most damaged part of their body, new skin has literally to be grown from the patient's own skin cells. However, the long delay in growing the skin can expose the burns patient to increased risk of infection and dehydration; so to help those cells to multiply, ...

Travel websites should inform people about malaria, say doctors

2011-01-19
Travel websites, especially those that offer 'last minute' deals, should inform people about the risks of malaria and the need to take preventative medication before travelling, say experts in infectious diseases today. Their warning, in a letter to this week's BMJ, follows three recent cases of malaria in UK citizens returning from 'winter sun' holidays to the Gambia, where malaria is highly endemic. They all used the same travel website. Two had made a late booking and all failed to take preventative drugs (chemoprophylaxis). Within two weeks of returning to the UK, ...

Answers to black hole evolution beyond the horizon?

2011-01-19
One of the most important predictions of Einstein's theory of General Relativity is the existence of black holes. The dynamics of these systems are not yet fully understood, but researchers from Queen Mary, University of London have now provided a rigorous way of determining the evolutionary stage of a black hole by analysing the region outside where matter cannot escape, the event horizon. Dr Thomas Bäckdahl and Dr Juan A. Valiente Kroon at Queen Mary's School of Mathematical Sciences have developed a method based on properties of the Kerr solution, a time-independent ...

Adult ADHD significantly increases risk of common form of dementia

2011-01-19
Adults who suffer from attention-deficit and hyperactivity disorder (ADHD) are more than three times as likely to develop a common form of degenerative dementia than those without, according to research in the January issue of the European Journal of Neurology. Researchers from Argentina confirmed the link during a study of 360 patients with degenerative dementia and 149 healthy controls, matched by age, sex and education. The dementia patients comprised 109 people with dementia with Lewy bodies (DLB) and 251 with Alzheimer's. "Our study showed that 48 per cent of ...

Are sharks color blind?

2011-01-19
Sharks are unable to distinguish colors, even though their close relatives rays and chimaeras have some color vision, according to new research by Dr. Nathan Scott Hart and colleagues from the University of Western Australia and the University of Queensland in Australia. Their study shows that although the eyes of sharks function over a wide range of light levels, they only have a single long-wavelength-sensitive cone* type in the retina and therefore are potentially totally color blind. Hart and team's findings are published online in Springer's journal Naturwissenschaften ...

Biological Psychiatry special issue: Postmortem research

2011-01-19
Philadelphia, PA, 18 January 2011 - Biological Psychiatry is proud to announce this week's publication of a special issue focusing on postmortem studies of psychosis. This special issue showcases the use of human brains postmortem to study psychiatric disorders, focusing on schizophrenia. The review articles highlight the benefits, achievements, problems, and perhaps most importantly, the future of postmortem research. Postmortem research, which allows scientists to study the brain directly via its tissue, is difficult and expensive. Hence, it is a relatively rare avenue ...

Breakthrough for more efficient drug development

2011-01-19
Developing new drugs is a highly costly and time-consuming process. Of 20 candidates, 19 are normally rejected because they don't work or have unwanted side effects. Now a research team led by Professor Lars Baltzer at Uppsala University has produced a tiny molecular "binder" that has the potential to change this landscape radically. The study, published today in the prestigious journal Angewandte Chemie, presents the concept of a tiny polypeptide consisting of 42 amino acids to which virtually any target-seeking organic molecule can be bound. In the body it then seeks ...

NRL scientists develop 3-D model of the ionosphere F-region

NRL scientists develop 3-D model of the ionosphere F-region
2011-01-19
WASHINGTON -- The first global simulation study of equatorial spread F (ESF) bubble evolution using a comprehensive 3D ionosphere model, SAMI3, has been demonstrated. The model self-consistently solves for the neutral wind driven dynamo electric field and the gravity driven electric field associated with plasma bubbles. Developed by Dr. Joseph Huba and Dr. Glenn Joyce at the NRL Plasma Physics Division, SAMI3 is a fully three-dimensional model of the low- to mid-latitude ionosphere. SAMI3 has been modified recently to use a sun-fixed coordinate system to eliminate rotation ...

The right food supplements during pregnancy?

2011-01-19
Nutrients, vitamins, minerals – during pregnancy a woman's body needs more of them. For most nutrients this increase in demand can be covered with a balanced diet. However, mothers-to-be should ingest some nutrients in the form of tablets. Research conducted by the Chair of Nutritional Medicine at the Technische Universitaet Muenchen (TUM) indicates there are knowledge gaps: According to this study, pregnant women often start taking sensible dietary supplements too late or not at all. At the same time, other micronutrients are unwittingly overdosed whose effects during ...

LAST 30 PRESS RELEASES:

Prevalence of over-the-counter and prescription medication use in the US

US child mental health care need, unmet needs, and difficulty accessing services

Incidental rotator cuff abnormalities on magnetic resonance imaging

Sensing local fibers in pancreatic tumors, cancer cells ‘choose’ to either grow or tolerate treatment

Barriers to mental health care leave many children behind, new data cautions

Cancer and inflammation: immunologic interplay, translational advances, and clinical strategies

Bioactive polyphenolic compounds and in vitro anti-degenerative property-based pharmacological propensities of some promising germplasms of Amaranthus hypochondriacus L.

AI-powered companionship: PolyU interfaculty scholar harnesses music and empathetic speech in robots to combat loneliness

Antarctica sits above Earth’s strongest “gravity hole.” Now we know how it got that way

Haircare products made with botanicals protects strands, adds shine

Enhanced pulmonary nodule detection and classification using artificial intelligence on LIDC-IDRI data

Using NBA, study finds that pay differences among top performers can erode cooperation

Korea University, Stanford University, and IESGA launch Water Sustainability Index to combat ESG greenwashing

Molecular glue discovery: large scale instead of lucky strike

Insulin resistance predictor highlights cancer connection

Explaining next-generation solar cells

Slippery ions create a smoother path to blue energy

Magnetic resonance imaging opens the door to better treatments for underdiagnosed atypical Parkinsonisms

National poll finds gaps in community preparedness for teen cardiac emergencies

One strategy to block both drug-resistant bacteria and influenza: new broad-spectrum infection prevention approach validated

Survey: 3 in 4 skip physical therapy homework, stunting progress

College students who spend hours on social media are more likely to be lonely – national US study

Evidence behind intermittent fasting for weight loss fails to match hype

How AI tools like DeepSeek are transforming emotional and mental health care of Chinese youth

Study finds link between sugary drinks and anxiety in young people

Scientists show how to predict world’s deadly scorpion hotspots

ASU researchers to lead AAAS panel on water insecurity in the United States

ASU professor Anne Stone to present at AAAS Conference in Phoenix on ancient origins of modern disease

Proposals for exploring viruses and skin as the next experimental quantum frontiers share US$30,000 science award

ASU researchers showcase scalable tech solutions for older adults living alone with cognitive decline at AAAS 2026

[Press-News.org] New research examines how HIV infections occur on the molecular level