Category Biology/Biotechnology

Gene Therapy durably Reverse Congenital Deafness in mice

The left panel is a schematic representation of the human ear. Sound waves are collected by the outer ear made up of the pinna and ear canal. The middle ear, composed of the eardrum and ossicles, transmits sound waves to the inner ear, which features the cochlea – the hearing organ responsible for transmitting auditory messages to the central nervous system. The right panel shows an immunofluorescence image of the auditory sensory epithelium within an injected cochlea. The inner hair cells have been stained for otoferlin in green. Otoferlin is detected in almost all of these cells. The inset is a high magnification area showing an inner hair cell that has not been transduced.
Credit: © Institut Pasteur

In collaboration with the universities of Miami, Columbia and San Francisco, scient...

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Scientists uncover how High-Fat diet drives Colorectal Cancer growth

Colon cancer growth, as measured by the number of dividing cells shown in green, is dramatically increased when the FXR-regulated gene network is disrupted by specific bile acids or a high-fat diet.
Colon cancer growth, as measured by the number of dividing cells shown in green, is dramatically increased when the FXR-regulated gene network is disrupted by specific bile acids or a high-fat diet.
Click here for a high-resolution image.
Credit: Salk Institute

Experimental drug candidate slows cancer progression in mouse model. A new study suggests that high-fat diets fuel colorectal cancer growth by upsetting the balance of bile acids in the intestine and triggering a hormonal signal that lets potentially cancerous cells thrive. The findings could explain why colorectal cancer, which can take decades to develop, is being seen in younger people growing up at a time when higher-fat diets are common.

As cancer death rates drop overall, doctors have noted a frightening anomaly: deaths fro...

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Breakthrough toward developing Blood Test for Pain

Researchers are developing an objective test for patient pain.
Credit: © ake1150 / Fotolia

Researchers have developed a test that objectively measures pain biomarkers in blood. The test could help physicians better treat patients with precision medicine, and help stem the tide of the opioid crisis.

“We have developed a prototype for a blood test that can objectively tell doctors if the patient is in pain, and how severe that pain is. It’s very important to have an objective measure of pain, as pain is a subjective sensation. Until now we have had to rely on patients self-reporting or the clinical impression the doctor has,” said Niculescu, who worked with other Department of Psychiatry researchers on the study. “When we started this work it was a farfetched idea...

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The Key to Increased Lifespan? Rubicon Alters Autophagy in Animals during Aging


Age-dependent increase in expression of Rubicon, a negative regulator of autophagy, is a cause of age-dependent autophagic impairment and contributes to acceleration of aging in animals. Credit:
Osaka University

Autophagy is an important biological recycling mechanism that is used to maintain homeostasis (balance or equilibrium) within all types of animal tissue. Many studies have attempted to understand the relationship between the reduction of autophagy and progression of aging in animals; however, none have provided a clear explanation, until now.

In 2009, a research team led by Tamotsu Yoshimori at Osaka University identified Rubicon as a protein factor that suppresses autophagy by controlling a specific step in this pathway...

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