Tag: "cells" at biology news

Stem cell therapy rescues motor neurons in ALS model

...blic Library of Science, PLoS ONE, shows that stem cells engineered to secrete a key growth factor can prot...known. In the new Wisconsin study, nascent brain cells known as neural progenitor cells derived from human fetal tissue were engineered to secrete a chemic...

Cell damage caused by brushing may help keep gums healthy

...ith even gentle force tear holes in the epithelial cells that line the gums and tongue, causing a momentary...rowth factors that promote growth of collagen, new cells and blood vessels leak out of injured cells. Cell injury also turns on expression of the c-fos gen...

MicroRNA conflict resolution

...l-free system using extracts from human epithelial cells that were engineered to over-express specific miRNA pathway components. They introduced exogenous let-7 miRNAs and monitored its effects on the translation of luciferase reporter mRNA. The researchers found that let-7 miRNAs recruited miRNP compl...

American Chemical Society's Weekly PressPac -- July 25, 2007

...In This Edition: Toward an alternative to stem cells for treating chronic brain diseases Oil spill ...MMEDIATE RELEASE Toward an alternative to stem cells for treating chronic brain diseases Journal of the American Chemical Society With ethical iss...

Geisinger scientist seeks cure for Lou Gehrig's disease, creating device to find treatment

...tal neurodegenerative condition that affects nerve cells in the brain and the spinal cord. As many as 20,000 Americans suffer from ALS and about 5,000 people in the U.S. are diagnosed with the disease each year, according to the National Institutes of Health. Its an aging-related disease that has long f...

Research teams uncover risk genes for multiple sclerosis

...his receptor and its interaction with regulatory T cells will now become a major focus of research on MS. ...e functions, including preventing the bodys immune cells from attacking its own tissues. This analysis confirmed that link while also finding other variants ...

News tips from the Journal of Neuroscience

...ined the output of the ribbon synapse between hair cells and primary afferent auditory-nerve (AN) fibers in the absence of auditory stimuli. They recorded the spike activity in single AN fibers in anesthetized cats, then used the distributions of the interspike intervals (ISIs) to model spontaneous release...

Jan Lwe awarded 2007 EMBO Gold Medal

...lls. The inner workings of bacterial (prokaryotic) cells were now showcased against the backdrop of a flexi...arting to use electron tomography of whole, frozen cells to visualise the cytoskeleton in cells. Jan is now determining how bacterial actin and tubulin hom...

Research shows NPD1 protects a key component of vision

...against damage to retinal pigment epithelial (RPE) cells and identifies an important trigger for its produc... with concomitant neuroprotectin D1 synthesis. RPE cells are responsible for the renewal of the tips of photoreceptor cells (rods and cones) crucial to visio...

MIT model could predict cells' response to drugs

...hers have developed a model that could predict how cells will respond to targeted drug therapies. Models ba...is based on similarities in the signaling pathways cells use to process information. Those pathways translate cells' environmental stimuli, such as hormones,...

Insulin grown in plants relieves diabetes in mice; UCF study holds promise for humans

...ulin gene and then administered freeze-dried plant cells to five-week-old diabetic mice as a powder for eig...had normal blood and urine sugar levels, and their cells were producing normal levels of insulin. Those results and prior research indicate that insulin c...

Researchers find pathway that controls cell size and division

...ecisely regulate cell size to ensure that daughter cells have sufficient cellular material to thrive or to ...is the primary determinant of cell size. In animal cells size is controlled in large part by a molecule that senses the blood sugar dependent hormone insulin...

Caffeine and exercise can team up to prevent skin cancer

...ise seemingly conspire in killing off precancerous cells whose DNA has been damaged by UVB-rays. The stud...nown as apoptosis, was observed in the DNA-damaged cells of all four groups, but the caffeine drinkers and exercisers showed an increase over the UVB-treated...

First new multiple sclerosis gene found in 30 years

...rounding axons, the long spindly portions of nerve cells that carry messages from one cell to another. This sheath, known as myelin, acts much like the plastic coating insulating an electrical cord. For reasons that are not well understood, the bodys own immune system is believed to attack the myelin, wh...

Nature's weapon against nerve agents

...mitter carrying nerve impulses between cells. When cells are damaged or dying, however, as on exposure to nerve agents or as a result of other forms of brain injury including stroke or disease they release far more glutamate than normal, over-exciting and killing nearby nerve cells. In related work pub...

After a decades-long search, scientists identify new genetic risk factors for multiple sclerosis

...heath around axons the delicate cables that nerve cells use to connect with each other. Various immunosup...ty. HLAs are proteins displayed on all the body's cells to help the immune system distinguish self from non-self. A variant of the HLA-DRB1 gene, now widel...

Using stem cells to help heart attack victims

...ham is paving the way for techniques that use stem cells to repair the damage caused by heart attacks. Th...cytes in real time as they differentiate from stem cells into beating heart cells. The system uses electrophysiology to record the electrical properties in a...

Risk genes for multiple sclerosis uncovered

...e functions, including preventing the bodys immune cells from attacking its own tissues. This analysis conf...helps to control the activity of a class of immune cells called regulatory T cells. Two papers appearing simultaneously in Nature Genetics confirm this findi...

Nottingham biosciences million pound injection

...as invented a unique material that works with stem cells and biopharmaceuticals to stimulate the regenerati...affold mechanism also assists the delivery of stem cells and drugs without compromising their effectiveness. This offers a substantial opportunity to deliver...

System to analyze beating heart stem cells could lead to heart attack treatments

...), is paving the way for techniques that use stem cells to repair the damage caused by heart attacks. T...cytes in real time as they differentiate from stem cells into beating heart cells. The system uses electrophysiology to record the electrical properties in a...

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(Date:10/30/2014)... 2014—Oligonucleotide-based therapeutics present unique challenges when it comes ... developmental harm. New consensus guidelines for toxicity testing ... biological characteristics of these novel biopharmaceuticals are presented ... journal from Mary Ann Liebert, Inc. publishers ... Nucleic Acid Therapeutics website until November ...
(Date:10/29/2014)... and gas production are well over recommended levels in ... journal Environmental Health . High levels of benzene, ... the first to be based on community sampling by ... used to supplement official air-quality monitoring programs. , Unconventional ... readily flow to the surface. This is because they ...
(Date:10/29/2014)... been blamed for increasing the risk of a ... history of schizophrenia, are widely accepted. Others, such ... parasite transmitted by soil, undercooked meat and cat ... new study by Gary Smith, professor of population ... School of Veterinary Medicine, used epidemiological modeling methods ...
Breaking Biology News(10 mins):New guidelines for reproductive & developmental toxicity testing of oligonucleotide drugs 2Air quality and unconventional oil and gas sites 2Air quality and unconventional oil and gas sites 3Penn vet professor investigates parasite-schizophrenia connection 2Penn vet professor investigates parasite-schizophrenia connection 3
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