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Science News Archive August 2023 - Page 33


Page 33 of 38

Scientists develop novel method to synthesize azide compounds for wider industrial applications

Researchers from Tokyo University of Science have developed an innovative method to synthesize azide compounds with a protected azido group, facilitating the efficient synthesis of organonitrogen compounds. This novel approach enables the creation of a wide range of azides through transformations with various electrophiles.

SourceTokyo University of Science·JournalFrontiers in Chemistry·TypeExperimental study·DateAug 4, 2023

New study shows substantial racial and ethnic disparities among survivors of second primary cancers in the US

A new study by the American Cancer Society reveals substantial racial and ethnic disparities among survivors of second primary cancers in the US. Non-Hispanic Black individuals experience higher cancer-related death rates, while Hispanic individuals face lower cardiovascular-related death rates compared to non-Hispanic White counterparts.

SourceAmerican Cancer Society·JournalJAMA Network Open·DateAug 4, 2023

BU researchers propose a data-driven strategy to stratify risk of progression from mild cognitive impairment to Alzheimer’s disease

Researchers from Boston University propose a data-driven approach to stratify individuals with mild cognitive impairment based on their risk of progressing to Alzheimer's disease. The study uses deep learning and survival analysis to identify key brain regions relevant to AD, enabling early interventions for those at high risk.

SourceBoston University School of Medicine·JournaliScience·TypeExperimental study·DateAug 4, 2023

Ion channel block unraveled

Scientists at Kanazawa University discovered how calcium ions block sodium channels, regulating ionic current involved in neural activities like memory formation. The study reveals the structural features and molecular processes underlying divalent cation block in NavAb, a well-known tetrameric sodium channel.

SourceKanazawa University·JournalNature Communications·DateAug 4, 2023

Long-term collection of patient-reported outcome data in oncology trials: Important and feasible

A roundtable consensus emphasizes the importance of collecting long-term patient-reported outcome data in oncology trials to assess treatment effects and disease progression. Stakeholders agree that this information is vital for regulators, payers, physicians, and patients making decisions after treatment discontinuation.

Study finds breastfeeding helps mother’s cardio health for 3 years or more

A new South Australian study found that breastfeeding for six months or more appears to reduce the risk of cardiovascular problems developing in mothers for at least three years after delivery. Women who breastfed experienced lower blood pressure and body-weight recovery, indicating improved cardio-metabolic health.

SourceFlinders University·JournalInternational Breastfeeding Journal·TypeObservational study·DateAug 4, 2023

We’re closer to engineering blood vessels

University of Melbourne researchers developed a novel approach to 'tissue engineering' blood vessels by combining multiple materials and fabrication technologies. The method creates blood vessels with complex geometries like native blood vessels, offering a transformative solution for cardiovascular disease.

SourceUniversity of Melbourne·JournalACS Applied Materials & Interfaces·TypeExperimental study·DateAug 4, 2023

Type 2 diabetes is associated with hospital stays for a wide range of medical conditions but, in people diagnosed at a young age, mental health disorders are the biggest contributing factor

A Hong Kong study of 1.5 million people found that young-onset type 2 diabetes is associated with higher rates of hospital stays for mental health disorders. The study suggests that addressing mental health needs may be crucial in reducing hospitalization rates for young adults with type 2 diabetes.

SourcePLOS·JournalPLOS Medicine·DateAug 4, 2023

Consuming added sugars may increase risk of kidney stones

Researchers have shown a positive association between added sugar consumption and an increased risk of developing kidney stones. Participants with higher intakes of added sugars had greater odds of developing kidney stones over the course of the study.

SourceFrontiers·JournalFrontiers in Nutrition·TypeObservational study·DateAug 4, 2023

Researchers discuss the ethical challenges of studying DNA from a 18th–19th century African American community

A population genetics team identified genetic relationship between 23andMe users and enslaved Africans in Catoctin Furnace, Maryland. The researchers consider ethics of sharing results with descendants and other relatives, highlighting importance of proper consent and minimizing harm.

SourceCell Press·JournalAmerican Journal of Human Genetics·TypeCommentary/editorial·DateAug 3, 2023

IU-led intervention leveraging technology reduces depression in Indianapolis-area patients

A recent study by Indiana University researchers found that an e-health and telehealth-based collaborative care intervention had a significant impact on patients with depression. The intervention resulted in a 43% reduction in depressive symptoms among participants, compared to only 17% in the usual primary care group.

SourceIndiana University-Purdue University Indianapolis School of Science·JournalBrain Behavior and Immunity·TypeRandomized controlled/clinical trial·DateAug 3, 2023

NUS study: A patchwork of Wnt signalling ligands and receptors pattern the colours on the wings of butterflies

A NUS study reveals how Wnt signalling regulates colour patterns in butterfly wings, with different ligands and receptors controlling specific areas. The researchers used CRISPR-Cas9 genome editing to test the function of pathway members, showing that they interact and regulate each other.

SourceNational University of Singapore·JournalScience Advances·TypeExperimental study·DateAug 3, 2023

Winter storms over Labrador Sea influence Gulf Stream system

A recent study by GEOMAR researchers found that fluctuations in the Labrador Sea can significantly influence the strength of sinking processes east of Greenland. This phenomenon affects the Atlantic Meridional Overturning Circulation (AMOC), a crucial climate system that brings warm water from the Gulf of Mexico to Europe.

SourceHelmholtz Centre for Ocean Research Kiel (GEOMAR)·JournalNature Communications·TypeComputational simulation/modeling·DateAug 3, 2023

Current takes a surprising path in quantum material

Researchers discovered that electrons flow through the bulk of a special type of insulator, rather than at the edges, using magnetic imaging. This finding provides new insights into electron behavior in quantum Hall insulators and informs the development of topological materials for next-generation quantum devices.

SourceCornell University·JournalNature Materials·DateAug 3, 2023

The Access to Advanced Health Institute receives $18 million award to develop a temperature stable, single-dose chikungunya RNA vaccine through a phase 1 clinical trial

The Access to Advanced Health Institute has received an $18 million award from the NIH to develop a temperature-stable, single-dose chikungunya RNA vaccine candidate. The vaccine uses innovative RNA platform technology to protect against the virus, which causes debilitating joint and muscle pain in endemic areas.

Displaying the design of DNA

Researchers at Arizona State University successfully demonstrated the use of MicroED to analyze a DNA crystal, overcoming limitations of X-ray crystallography. The technique, combined with cryo-FIB milling, enables work with smaller crystals, opening opportunities for understanding RNA structure and developing novel nanotechnologies.

SourceArizona State University·JournalStructure·TypeExperimental study·DateAug 3, 2023

CAR-T immune therapy attacks ovarian cancer in mice with a single dose

Researchers successfully deployed CAR-T therapy in a mouse model of ovarian cancer, demonstrating strong anti-tumor effects even at late stages. The treatment was highly effective, shrinking or eliminating tumors after just one dose and continuing to work for months without major side effects.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalJournal for ImmunoTherapy of Cancer·TypeExperimental study·DateAug 3, 2023

University of Minnesota-led study links long-term artificial sweetener intake to increased body fat adipose tissue volume

A University of Minnesota-led study found that long-term consumption of aspartame and saccharin is associated with increased volumes of visceral, intermuscular, and subcutaneous adipose tissue. The researchers recommend considering alternative approaches to artificial sweeteners due to potential health consequences.

SourceUniversity of Minnesota Medical School·JournalInternational Journal of Obesity·TypeObservational study·DateAug 3, 2023

GABA receptors in brain could be targets to treat depression and its cognitive symptoms

Researchers propose GABA-modulating treatments as potential therapeutic targets for depression's cognitive and affective symptoms. The study highlights the importance of GABA-A receptors in regulating balance and signals between neurons, and suggests compounds that promote or inhibit these receptors may alleviate depressive symptoms.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalTrends in Pharmacological Sciences·TypeLiterature review·DateAug 3, 2023