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Category: biotech/medical – Page 954

Inside the Nano-Universe: New 3D X-Ray Imaging Transforms Material Science

A cutting-edge X-ray method reveals the 3D orientation of nanoscale material structures, offering fresh insights into their functionality.

Researchers at the Swiss Light Source (SLS) have developed a groundbreaking technique called X-ray linear dichroic orientation tomography (XL-DOT). This method reveals the three-dimensional arrangement of a material’s structural building blocks at the nanoscale. Its first application focused on a polycrystalline catalyst, enabling scientists to visualize crystal grains, grain boundaries, and defects—critical features that influence catalyst performance. Beyond catalysis, XL-DOT offers unprecedented insights into the structure of various functional materials used in information technology, energy storage, and biomedical applications.

Deadly Timekeeping: How Brain Tumors Use Your Body Clock Against You

Research from Washington University shows that glioblastoma, a type of brain cancer, has its own internal clock that synchronizes with the host’s circadian rhythms to optimize its growth by responding to daily hormone releases like cortisol.

Targeting these circadian signals in treatment slowed tumor growth significantly in both lab and animal studies. This synchronization could explain the mixed effects of dexamethasone, a common treatment, depending on the timing of its administration. The study highlights the potential of chronotherapy, aligning treatment with the body’s natural rhythms, to improve cancer outcomes.

Circadian Rhythms and Human Biology.

New Study Finds Alarming Link Between Air Pollution and Dangerous Blood Clots

Air pollution is associated with increased risk of venous thromboembolism: the Multi-Ethnic Study of Atherosclerosis https://ashpublications.org/blood/article/doi/10.1182/blood.…ed-risk-of

A comprehensive longitudinal study has shown a clear link between long-term exposure to air pollution and an increased risk of developing blood clots in deep veins, known as venous thromboembolism.

The study, which followed over 6,000 U.S. adults across major cities, revealed that exposure to particulate matter, oxides of nitrogen, and nitrogen dioxide significantly heightened the risk, with those in the highest quartile of exposure facing the most severe risks.

Air Pollution and Blood Clot Risks

Exposure to long-term air pollution has been linked to a higher risk of developing blood clots in deep veins, which can block blood flow and cause severe complications, including death if left untreated.

Herpes infections soar globally as new study reveals massive disease burden

Regarding oral HSV-1 infections, the global prevalence in 2020 among individuals aged 0–49 years was 58.6% (95% UI: 53.5–62.1%), equating to approximately 3.4 billion people. The African region exhibited the highest oral HSV-1 prevalence, while the Western Pacific had the largest number of infected individuals.

Conclusions

To summarize, in 2020, 26 million individuals aged 15–49 acquired new HSV-2 infections, with 520 million living with HSV-2 and 188 million experiencing HSV-2-related GUD. Similarly, 17 million acquired new genital HSV-1 infections, with 376 million living with genital HSV-1 and 17 million experiencing HSV-1-related GUD.

GeroScience: 📢CallForPapers

The Call is still open on senescence in brain aging and Alzheimers disease!

Submit your paper today! 📩

Understanding Senescence in Brain Aging and Alzheimer’s Disease

Guest Editors Drs. Julie Andersen and Darren Baker, Associate Editor Dr. Anna Csiszar and Editor-in-Chief Dr. Zoltan Ungvari, and the editorial team of GeroScience (Journal of the American Aging Association; 2018 Impact Factor: 6.44) invite submission of original research articles, opinion papers and review articles related to research focused on understanding the role of senescence in brain aging and in Alzheimer’s disease. Senescent cells accumulate in aging and pathological conditions associated with accelerated aging. While earlier investigations focused on cellular senescence in tissues and cells outside of the brain (e.g. adipose tissue, dermal fibroblasts, cells of the cardiovascular system), more recent studies started to explore the role of senescent cells in age-related decline of brain function and the pathogenesis of neurodegenerative disease and vascular cognitive impairment. This call-for-papers is aimed at providing a platform for the dissemination of critical novel ideas related to the functional and physiological consequences of senescence in diverse brain cell types (e.g., oligodendrocytes, pericytes, astrocytes, endothelial cells, microglia, neural stem cells), with the ultimate goal to identify novel targets for treatment and prevention Alzheimer’s disease, Parkinson’s disease and vascular cognitive impairment. We welcome manuscripts focusing on senescent-cell-targeting mouse models, the role of paracrine senescence, senescence pathways in terminally differentiated neurons, the pleiotropic effects of systemic senescence, the role of senescence in neuroinflammation and the protective effects of senolytic therapies. We are especially interested in manuscripts exploring the causal role of molecular mechanisms of aging in induction of cellular senescence as well as links between lifestyle (e.g., diet, exercise, smoking), medical treatments (e.g. cancer treatments), exposure environmental toxicants and cellular senescence in the brain. We encourage submission of manuscripts on developing innovative strategies to identify and target senescent cells for prevention/treatment of age-related diseases of the brain. Authors are also encouraged to submit manuscripts focusing on translational aspects of senescence research.

All manuscripts accepted from this Call for Papers will be included in a unique online article collection to further highlight the importance of this topic. All manuscripts should be submitted online here: https://www.editorialmanager.com/jaaa/default.aspx.

GeroScience: 📢 CallForPapers

- is focusing on the role of molecular mechanisms of aging in the pathogenesis of cardiovascular diseases, COVID19, hypertension, obesity and vascularhomeostasis. ‘ + Read more in the comments and submit📧 at the link⬇

Cell Biology of Vascular Aging.

Guest Editors: Prof. Zoltan Arany, Prof. Jalees Rehman and Prof. Gabor Csanyi.

Deputy Editor Dr. Stefano Tarantini and Editor-in-Chief Dr. Zoltan Ungvari, and the editorial team of GeroScience (Official Journal of the American Aging Association, published by Springer) invite submission of original research articles, opinion papers and review articles related to research focused on understanding the mechanisms involved in vascular aging, the factors promoting accelerated aging in vascular cells and the role of vascular cells in the pathogenesis of age-related diseases. This call-for-papers is aimed at providing a platform for the dissemination of critical novel ideas related to the mechanisms of vascular aging as well as mechanisms related to key phenotypes of vascular aging including.

Some breast cancer patients can avoid certain surgeries, studies suggest

Some early breast cancer patients can safely avoid specific surgeries, according to two studies exploring ways to lessen treatment burdens.

One new study, published in the New England Journal of Medicine, examines whether removing lymph nodes is always necessary in early breast cancer. Another in the Journal of the American Medical Association suggests a new approach to a type of breast cancer called ductal carcinoma in situ, or DCIS.

The research was discussed Thursday at the San Antonio Breast Cancer Symposium.

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