Category Health/Medical

Stimulating brain circuits promotes neuron growth in adulthood, improving cognition and mood

We humans lose mental acuity, an unfortunate side effect of aging. And for individuals with neurodegenerative conditions such as Alzheimer’s and Parkinson’s, the loss of cognitive function often accompanied by mood disorders such as anxiety is a harrowing experience. One way to push back against cognitive decline and anxiety would be to spur the creation of new neurons. For the first time, University of North Carolina School of Medicine scientists have targeted a specific kind of neuron in mice to increase the production of neural stem cells and spur on the creation of new adult neurons to affect behavior.

Targeting these cells, as reported in the journal Nature Neuroscience, modulated memory retrieval and altered anxiety-like behaviors in mice...

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Perception-based Nanosensor Platform could Advance Detection of Ovarian Cancer

(1) Eleven single-stranded DNA oligonucleotides wrap SWCNT chiralities to form DNA-SWCNT sensor complexes. (2) The array of sensors is incubated in the sample of interest. (3) The optical response of the sensors is interrogated by high-throughput NIR spectroscopy. (4) The spectroscopic data are fitted to determine the wavelength and intensity of each sensor emission band. (5) The sensor responses are processed into a feature vector (FV) training set. A.U., arbitrary units. (6) ML algorithms are trained and validated for each target protein and their combinations. Seq, sequence; CNT, Carbon nanotubes. (7) Prediction results are evaluated.
Figure by Zvi Yaari

Ovarian cancer kills 14,000 women in the United States every year...

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Study finds Nanomedicine Targeting Lymph Nodes Key to Triple Negative Breast Cancer Treatment

Human metastatic breast cancer in the lymph nodes. National Cancer Institute – Visuals Online

Research from the University of Michigan Rogel Cancer Center could provide a new approach to treating an aggressive form of breast cancer.

A study led by Duxin Sun, Ph.D., found that targeting the immune microenvironment in lymph nodes and tumors simultaneously led to long-term tumor remission in mice models of metastatic triple negative breast cancer. Further, using nanoparticles to deliver these immune-altering drugs increases treatment efficacy. These results appear in Science Translational Medicine.

Immunotherapy combined with chemotherapy has been long approved as standard treatment option for triple negative breast cancer but only shows a limited response in patients...

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Researchers identify Pathway that Regulates Lipid synthesis and contributes to Tumor Survival

The alterations are associated with poor outcomes and disease progression. Alterations in metabolic processes are a hallmark of cancer and can lead to a tumor environment that is acidic. As a result, cancer cells must adapt to survive in this inhospitable environment. In a new study published in the journal Cell Reports, Moffitt Cancer Center researchers show that cancer cells in an acidic environment undergo lipid synthesis and accumulation. The team identified the key signaling molecules responsible for these changes and discovered that these alterations are associated with poor outcomes and disease progression among breast cancer patients.

Cancer cells undergo numerous changes that promote cell survival and continued growth...

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