Health News

A new molecular player involved in T cell activation

When bacteria or viruses enter the body, proteins on their surfaces are recognized and processed to activate T cells, white blood cells with critical roles in fighting infections. During T-cell activation, a molecular complex known as the microtubule-organizing center (MTOC) moves to a central location on the surface of the T-cell. Microtubules have several important […]

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Breast cancer cells become invasive by changing their identity

Researchers from Karolinska Institutet in Sweden have identified a protein that determines the identity and invasive properties of breast cancer cells. The finding could lead to the development of new therapeutic and diagnostic strategies to target breast cancer invasion and metastasis. The study is published in the scientific journal Cancer Research. Cancer cell invasion of […]

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Disrupted circadian rhythms may drive anxiety and exacerbate brain disorders: New studies reveal critical role of healthy sleep and powerful role of circadian rhythm regulation in the brain

Sleep disruptions are associated with many brain disorders, including anxiety, dementias, and traumatic brain injury. While these disruptions are sometimes viewed as a side effect of brain disorders, new findings presented today suggest that aberrant sleep-wake cycles can also drive brain pathology. The studies were presented at Neuroscience 2018, the annual meeting of the Society […]

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Single protein controls thousands of genes essential for sperm development: New regulatory mechanism could underlie male infertility

A single protein regulates a battery of key genes inside developing sperm, according to a new study out of Case Western Reserve University School of Medicine. Scientists discovered the protein — called Dazl — controls a network of genes essential for developing sperm to replicate and survive. The findings, published in Cell Reports, could lay […]

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Imaging collaboration sheds new light on cancer growth

Walter and Eliza Hall Institute researchers have uncovered new insights into how the normal controls on cell growth are lost in cancer cells, leading to rapid tumour expansion. The findings could help researchers predict how cancer cells respond to chemotherapy and improve our understanding of how cancer evolves. Published in the journal Cell Cycle, the […]

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Stress can impair memory, reduce brain size in middle age

Adults in their 40s and 50s with higher levels of cortisol — a hormone linked to stress — performed worse on memory and other cognitive tasks than peers of the same age with average cortisol levels, research found. Higher cortisol in the blood also was associated with smaller brain volumes, according to the study, published […]

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Breathing through the nose aids memory storage

The way we breathe may affect how well our memories are consolidated (i.e. reinforced and stabilised). If we breathe through the nose rather than the mouth after trying to learn a set of smells, we remember them better, researchers at Karolinska Institutet in Sweden report in The Journal of Neuroscience. Research into how breathing affects […]

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Modifiable dementia risk factor in older adults identified

For older adults, it may seem as though the die is already cast regarding their odds of developing dementia, but new research from the University of Pittsburgh has identified a dementia risk factor among older adults that should be modifiable even well into old age. The study, which draws on data collected from following hundreds […]