Scientists explain how insulin secreting cells maintain their glucose sensitivity
Scientists at the leading Swedish medical university Karolinska Institutet have now disclosed the mystery how the insulin-secreting cells maintain an appropriate number of ATP sensing ion channel proteins on their surface. This mechanism, which is described in the latest number of Cell Metabolism,...Menin Gene Mutation made Insulin Secreting Cells to Proliferate
Acute loss of a protein named menin – involved in tumor-suppression or cell-proliferation-suppressing function resulted in the proliferation of pancreatic islet cells, which again affected blood sugar// regulation - researchers at the University of Pennsylvania School of Medicine reports. In hu...DNA-damaged cells communicate with neighbors to let them know they're in trouble
...ignaling process was activated inside the cultured human cells within minutes of the DNA damage, it took 24 to 48 hours for the damaged cells to start secreting the inflammatory signals. "We think the cell is giving itself time to repair its DNA before alerting the immune system that there's a problem," sa...CU-Boulder study shows brain's immune system may cause chronic seizures
...foundly increase the excitability of the neurons that they are near. "In our new study, we showed for the first time that glial cells moving in and secreting these cytokines cause the neurons in the area to become excitable enough to cause seizures." The results of the study appear in the July issue of t...Lab Study Finds Protein That May Inhibit Cancer Spread
...death. Researchers at Children's Hospital Boston had found previously that metastatic tumors prepare "landing places" for cancer in other organs by secreting certain proteins that encourage tumor growth and attract feeder blood vessels. In the new study, they found that non-metastatic tumors secrete a prote...Potent metastasis inhibitor identified
... the Vascular Biology Program at Children's, has been finding that metastatic tumors prepare landing places in distant organs for their metastases, by secreting certain proteins that encourage tumor growth and attract feeder blood vessels. Now, he and his colleagues show that non-metastatic tumors secrete a pr...Plant communication: Sagebrush engage in self-recognition and warn of danger
...rch is in its early stages, the scientists suspect that the plants warn their own kind of impending danger by emitting volatile cues. This may involve secreting chemicals that deter herbivores or make the plant less profitable for herbivores to eat, he said. What this research means is that plants are "cap...Obesity and diabetes double risk of HF -- patients with both conditions 'very difficult' to treat
... with heart failure," says Professor McMurray. An even more "intriguing" suggestion, he added, is that adipose cells might act as an endocrine tissue, secreting substances which may have a harmful effect on heart tissue and blood vessels. The relationship between diabetes and heart failure is also a subject...Study in Nature Medicine establishes major new treatment target in diseased arteries
...tion, immune cells often mistakenly contribute to disease, in some cases by secreting chemicals called cytokines that kill cells outright, and that also signal f...ce the early 1990s," Berk said. "We had to determine that vessel walls were secreting something in response to ROS, then prove it was CypA, then prove CypA was r...BELLUS Health reports results for first quarter of fiscal 2009
...decreases glycemic levels in obese diabetic Zucker rats, when compared to the control group, while preserving 40% more pancreatic islet cells (insulin secreting cells) as compared to the control group, and have shown some protective effect on renal function. Research tax credits and grants amounted to $30...Study Shows: New Blood Test Proven Six Times More Effective For Tuberculosis Control
...The T-cells of these individuals are sensitized to TB, and respond to stimulation with peptides simulating those expressed by the TB causing bacteria, secreting a cytokine called interferon-a. QFT accurately measures the interferon-a response in a sensitive enzyme assay. Unlike the TST, QFT is unaffected by pr...Finding the constant in bacterial communication
...hough they have no sensory organs, bacteria can get a good idea about what's going on in their neighborhood and communicate with each other, mainly by secreting and taking in chemicals from their surrounding environment. Even though there are millions of different kinds of bacteria with their own ways of sensi...Mollusks taste memories to build shells
...e shell's edge grows. Bands parallel to the growing edge can be explained by inhibition of future activity. Pigment secreted on one day can inhibit secreting cells for a few days, resulting in an on/off pattern that produces a series of bands. The most interesting patterns, however, are waves of activity...Time (and PPAR-beta/delta) heals all wounds
...e skin is reconstructed. Chong et al. found that PPARβ/δ-deficient fibroblasts made wild type keratinocytes hyperproliferative in OTCs by secreting extra doses of several growth factors. The fibroblasts were stimulated to produce these growth factors by keratinocyte-released cytokine IL-1 - unders...Moderate use averts failure of type 2 diabetes drugs in animal model
...aking insulin. Instead, it somehow stops them from secreting insulin." When they stopped receiving the drug, beta cells began secreting insulin again hours later. Nichols and co-author M...lem seems to lie somewhere between the trigger for secreting insulin, which was hyperactivated while they were ...Green tea may delay onset of type 1 diabetes
...he EGCG-fed group. "It's kind of counterintuitive why would there be proliferation of the glandular cells occurring when the present cells are not secreting saliva?" says Dr. Kevin Gillespie, first author of the study he conducted for his master's research project at MCG. The proliferation phenomenon al...When under attack, plants can signal microbial friends for help
...can send out an S.O.S. to the roots for help, and the roots will respond by secreting an acid that brings beneficial bacteria to the rescue. The finding quash...roots in the plants that had Bacillus in the soil. The roots responded by secreting a carbon-rich chemical--malic acid. All plants biosynthesize malic acid,...Response to immune protein determines pathology of multiple sclerosis
...dly and the prognosis is particularly bleak. MS ensues when the body's T cells invade the brain and trigger nerve-damaging inflammation, in part by secreting proteins called cytokines. According to the new study, lead by Washington University scientist John Russell, the brain's response to one particular im...Ripple effect: Water snails offer new propulsion possibilities
...by an animal, or in the lab) to generate propulsive forces and move. Some freshwater and marine snails crawl by "hanging" from the water surface while secreting a trail of mucus. The snail's foot wrinkles into little rippling waves, which produces corresponding waves in the mucus layer that it secretes between...UNC scientists turn human skin cells into insulin-producing cells
...ny other fetal or adult cell type, and then inducing them to differentiate, or transform, into cells that perform a particular function in this case, secreting insulin. Several recent studies have shown that cells can be returned to pluripotent state using "defined factors" (specific proteins that control...iZumi Bio and Pierian Merge to Form iPierian to Advance Cellular Reprogramming
...ancreatic development, and metabolic disease, Dr. Melton recently published successful in-vivo reprogramming of exocrine pancreatic cells into insulin secreting cells without reversion to a pluripotent stem cell state. Dr. Corey Goodman was a professor at Stanford University and the University of C...Assembling cells into artificial 3-D microtissues, including a tiny gland
... a step further. They have assembled different types of genetically engineered cells into synthetic microtissues that can perform functions such as secreting and responding to hormones, promising more complex biological capabilities than a single cell alone could produce. "This is like another level of h...US College Students Needing TB Testing Now Have the Benefit of QFT(TM)
...The T-cells of these individuals are sensitized to TB, and respond to stimulation with peptides simulating those expressed by the TB causing bacteria, secreting a cytokine called interferon-gamma. QFT accurately measures the interferon-gamma response in a sensitive enzyme assay. QFT is unaffected by previous B...Novocell Reports Successful Use of Stem Cells to Generate Insulin in Mice
...nior author of the publication. "It also provides strong evidence that hES cell-derived endoderm cells are able to generate glucose-responsive insulin secreting cells that are functionally similar to adult human beta cells." Current cellular therapy for diabetes is performed by transplanting donor-derived hu...Immune system protein starves 'staph' bacteria
...apon neutrophils employ as they wage battle in the abscess. First, neutrophils try to gobble up the bacteria. If they fail and die (staph is expert at secreting toxins that kill neutrophils), then they spill their guts, which are filled with metal-binding calprotectin sponges that soak up the metals. The neut...RNAi as a Tool for Mammalian Gene Analysis: Applications of siRNAs
... cells producing active TSP1 began to form exponentially growing tumors. These tumors were composed of cells secreting unusually high amounts of the angiogenic stimulator, vascular endothelial growth factor (VEGF), which were s...Uses and Applications of FuGENE 6 Transfection Reagent
...ols. Consider repeating the experiment with a secreted reporter gene assay such as SEAP, hGH, or a standard -gal control vector. Cells secreting SEAP should show little to no evidence of cytotoxicity. The culture may be contaminated with myco...Bovine IFN gamma ELISPOT Kit from Endogen
Description:...issection microscope or automated ELISPOT reader) and then compared to the number of cells added to the microplate. This allows the frequency of cells secreting the cytokine to be calculated. One spot is equal to one molecule-secreting cell....