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Science News Archive 2013 - Page 56


Page 56 of 352

Transmitting stress response patterns across generations

A recent study published in Biological Psychiatry reveals that offspring of stressed mothers show stress-induced changes at birth, with altered behavior and gender-related differences continuing into adulthood. The researchers identified the CRF1 gene as a key contributor to this intergenerational transmission of patterns.

SourceElsevier·JournalBiological Psychiatry·DateNov 4, 2013

Is DNA from mom or dad?

A new technique called HaploSeq enables researchers to quickly determine which genetic variants occur together on the same chromosome and came from the same parent. This advance has direct implications for personalized medicine, improving organ donation matching and understanding human migration patterns.

SourceLudwig Institute for Cancer Research·JournalNature Biotechnology·DateNov 3, 2013

Life, but not as we know it

Researchers at the University of Nottingham have found a type of archaea that can reproduce without normal replication processes, growing faster in its absence. This discovery challenges existing understanding of DNA replication and has implications for cancer research.

SourceUniversity of Nottingham·JournalNature·DateNov 3, 2013

Primary HPV screening provides 60–70 percent greater protection against invasive cervical cancer than cytology-based screening

A study of four European trials found that HPV-based screening provided greater protection against invasive cervical cancer than cytological screening. The analysis showed that HPV-based screening protected 60-70% more women from invasive cancers, with increased protection seen in women aged 30-35 years and those screened every 5 years.

SourceThe Lancet_DELETED·JournalThe Lancet·DateNov 2, 2013

Study explains how a job-market system lands couples in the same city

A recent study by MIT economists provides justification for current rules in job-placement programs, which can accommodate married couples. The researchers found that a properly calibrated system can work well even with large job markets and specific constraints. In fact, data from the medical job market suggests that stable matching i...

SourceMassachusetts Institute of Technology·JournalThe Quarterly Journal of Economics·DateNov 1, 2013

Bipolar and pregnant

A new Northwestern University study reveals that physiological changes during pregnancy reduce the effects of commonly used bipolar medications, making women more vulnerable to recurring episodes. Women with bipolar disorder may require higher doses to stay well during pregnancy.

SourceNorthwestern University·JournalAmerican Journal of Psychiatry·DateNov 1, 2013

Non-radiologists perform majority of ultrasound-guided invasive procedures, study suggests

A recent study published in the Journal of the American College of Radiology found that non-radiologists are increasingly performing ultrasound-guided invasive procedures. The study highlights the growing role of non-radiologists in these procedures, with significant increases noted between 2004 and 2010.

SourceAmerican College of Radiology·JournalJournal of the American College of Radiology·DateNov 1, 2013

Home visits lessen emergency care for infants

A new study from Duke University shows that nurse home visits can significantly reduce the need for emergency care in infants. The program, Durham Connects, costs an average of $700 per family and has been shown to decrease emergency care episodes by 50% in the first year of life.

SourceDuke University·JournalPEDIATRICS·DateNov 1, 2013

JCI early table of contents for Nov. 1, 2013

Researchers found that liver Kupffer cells are essential for deleting B cells using anti-CD20 therapy. The interaction between the liver and the immune system also affects the progression of candidiasis, a leading cause of hospital-acquired infections.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 1, 2013

Designing an acoustic diode

Researchers in China's Nanjing University have designed a novel acoustic diode that could provide brighter and clearer ultrasound images by eliminating acoustic disturbances. The device, which uses a near-Zero Index Metamaterial, achieves one-way transmission of sound waves, crucial for medical ultrasound applications.

SourceAmerican Institute of Physics·JournalApplied Physics Letters·DateNov 1, 2013

A new model for organ repair

Researchers at Harvard University have identified a novel mechanism of kidney repair, where mature cells reprogram themselves after injury. This finding challenges the long-held theory that kidney stem cell populations respond to damage.

SourceHarvard University·JournalProceedings of the National Academy of Sciences·DateNov 1, 2013

Patients with heart failure need specialist care

A Swedish study reveals that many heart failure patients are undertreated, with high mortality rates associated with poor pump capacity, kidney function, blood count, and lack of ACE inhibitors and beta blockers. The study suggests referring these patients to heart failure specialists for evaluation and treatment.

SourceKarolinska Institutet·JournalJournal of the American College of Cardiology·DateNov 1, 2013

Dysfunctional chemokine receptor promotes candidiasis

A dysfunctional chemokine receptor, CXCR1, plays a crucial role in Candida infection progression. Mice lacking this receptor are prone to kidney failure due to Candida-induced injury. Additionally, patients with a mutation in the CXCR1 gene are at higher risk of developing candidiasis.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 1, 2013