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Can surgery and anaesthesia affect memory?

A study of 312 participants who had surgery and 652 participants who did not found that surgery was associated with a decline in immediate memory by one point out of 30 possible test scores. Additionally, reduced working memory decline was linked to longer cumulative operations.

SourceWiley·JournalAnaesthesia·DateFeb 22, 2018

Penn engineers test drug transfer using placenta-on-a-chip

Researchers at the University of Pennsylvania have demonstrated the feasibility of their organ-on-a-chip platform in studying drug transport across the human placental barrier. The study found that the placenta-on-a-chip successfully emulated the protective mechanism against toxic drugs, paving the way for its use as a screening platform.

SourceUniversity of Pennsylvania·JournalAdvanced Healthcare Materials·DateFeb 16, 2018

A step toward sensitive and fast gluten detection

Researchers have developed a fast gluten detector that can detect and quantify different sources of gluten than current tests, providing more accurate results. The new test is faster, taking only 45 minutes, and can sense less than 20 parts per million of gluten, meeting the FDA's limit for 'gluten-free' designation.

SourceAmerican Chemical Society·JournalACS Sensors·DateFeb 7, 2018

Analyzing street drugs points to potential early warning system in opioid crisis

A new study suggests that analyzing street drugs can serve as an early warning system for the opioid crisis. The University of Pittsburgh Graduate School of Public Health has developed a method to quickly analyze stamp bags, which contain mixtures of illicit drugs, to detect fentanyl and other high-lethality substances.

Polio labs equipped to study rare tropical diseases

The Global Polio Laboratory Network has successfully tested for soil transmitted helminths and schistosomiasis in Ghana, identifying a prevalence of 22% for combined helminth infections. The study demonstrates the potential for adapting GPLN labs for monitoring and control of neglected tropical diseases.

SourcePLOS·JournalPLOS Neglected Tropical Diseases·DateJan 25, 2018

Solving problems that matter

A Lehigh team, backed by the Canadian government and philanthropic foundations, is developing test strips for women's health issues in rural Africa. The project aims to quickly diagnose urinary tract infections and prevent premature labor, low birth weight, or spontaneous abortion.

'Heart-on-a-chip' process aims to speed up drug testing

Researchers at Harvard University have developed a faster method for manufacturing 'heart-on-a-chip', allowing for quicker testing of new drugs on engineered human heart tissue. This new approach aims to reduce cardiac toxicity and improve the predictability of drug effects, paving the way for safer clinical trials.

SourceIOP Publishing·JournalBiofabrication·DateJan 16, 2018

Biomarkers in breast cancer: IQWiG criticizes conclusion on MINDACT data in US guideline

A group of authors from IQWiG has contradicted the American Society of Clinical Oncology's conclusion that MammaPrint can identify patients who do not require chemotherapy. The IQWiG analysis found a statistically significant disadvantage of the test for disease-free survival in certain patient groups.

SourceInstitute for Quality and Efficiency in Health Care·JournalJournal of Clinical Oncology·DateDec 27, 2017

How well can digital assistants answer questions on sex?

A recent study found that digital assistants on smartphones are less effective than laptop-based Google searches in providing quality sexual health advice. The researchers tested Siri and Google Assistant with 50 questions and compared their answers to laptop-based Google searches, finding that Google performed better in most cases.

SourceBMJ Group·JournalThe BMJ·DateDec 13, 2017

Breath test could be possible for drugs and disease

Researchers from the University of Gothenburg have identified a new method for detecting drug use and disease through analyzing compounds in exhaled breath. The study found that methadone was present in all samples using both methods, but with varying concentrations, highlighting the importance of device design and sampling technique.

SourceIOP Publishing·JournalJournal of Breath Research·DateDec 7, 2017

Women who attempt suicide exhibit different protein levels years after the attempt

Researchers found that women with a history of suicide attempts had lower circulating levels of BDNF, a protein critical for neuron function and synaptic activity, compared to those without such a history. This biomarker shows promise in predicting future suicide attempts and may be incorporated into standard blood tests at annual chec...

SourceBinghamton University·JournalSuicide and Life-Threatening Behavior·DateDec 5, 2017

Blood test could help predict skin cancer's return

Researchers found that a blood test for tumour DNA can predict the likelihood of aggressive skin cancer returning, with 33% of patients who tested positive being alive after five years compared to 65% of those who didn't. The study also revealed that patients with faults in genes BRAF and NRAS are more likely to experience a return wit...

SourceCancer Research UK·JournalAnnals of Oncology·DateDec 5, 2017

New test provides accurate measure of DNA damage from chemical compounds

A new biomarker test developed by researchers at Georgetown University Medical Center can predict, with up to 90 percent certainty, which chemical compounds can cause DNA damage that could lead to cancer. The test, called TGx-DDI, is based on genes that are actively transcribed in a cell and can identify stress due to DNA damage.

SourceGeorgetown University Medical Center·JournalProceedings of the National Academy of Sciences·DateDec 4, 2017

Smoking study personalizes treatment

A new study at Vanderbilt University Medical Center uses a blood test to personalize treatment for smokers. The study found that patients who are 'normal' metabolizers of nicotine respond better to varenicline (Chantix), while those who are 'slow' metabolizers do as well with a nicotine patch.

SourceVanderbilt University Medical Center·JournalNicotine & Tobacco Research·DateNov 20, 2017

NIST scientists discover how to switch liver cancer cell growth from 2-D to 3-D structures

Scientists at NIST have discovered a way to make tiny colonies of cells grow in three-dimensional structures inside petri dishes, paving the way for more realistic biological environments for testing pharmaceuticals. The method could help bridge the gap between lab and living creature testing, speeding up drug development.

SourceNational Institute of Standards and Technology (NIST)·JournalACS Biomaterials Science & Engineering·DateNov 16, 2017

Aging tests yield varying results

Researchers compared 11 measures of aging, including blood and chromosome tests, and found that none consistently predicted physical or cognitive changes. Telomere length and epigenetic clocks showed some promise but were less clearly linked to physiological outcomes.

SourceDuke University·JournalAmerican Journal of Epidemiology·DateNov 15, 2017