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Microneedle Sensors May Allow Real-Time Monitoring of Body Chemistry

By Guest PostDecember 27, 2011Sciencebiomedical engineering, diabetic patient, electrochemical sensors, glucose, lactate, microneedle sensor, microneedles, molecules, monitor glucose levels, north carolina state university, one dimension, ph levels, philip miller, roger narayan, shelby skoog, Technology, types of sensors, university of california, variety of chemicals

Researchers from North Carolina State University, Sandia National Laboratories, and the University of California, San Diego have developed new technology that uses microneedles to allow doctors to detect real-time chemical changes in the body – and to continuously do so for an extended period of time.

“We’ve loaded the hollow channels within microneedles with electrochemical sensors that can be used to detect specific molecules or pH levels,” says Dr. Roger Narayan, co-author of a paper describing the research, and a professor in the joint biomedical engineering department of NC State’s College of Engineering and the University of North Carolina at Chapel Hill. (more…)

New Tool Offers Unprecedented Access for Root Studies

By Guest PostDecember 25, 2011Scienceacidification, biofuels, brachypodium, carbon sequestration, cellular and subcellular level, charles darwin, darkness, david ehrhardt, essential mineral nutrients, foxtail millet, galactose, glucose, guido grossmann, matthias meier, mining companies, nutrient acquisition, optical sensors, plant brain, plant organs, plant physiology, plant roots, power of movement of plants, real-time, rene sit, root growth, root system, rootchip, roots, salinization, seedlings, soil, stephen quake, sugar, toxic, woei jiun guo, wolf frommer

Stanford, CA — Plant roots are fascinating plant organs – they not only anchor the plant, but are also the world’s most efficient mining companies. Roots live in darkness and direct the activities of the other organs, as well as interact with the surrounding environment. Charles Darwin posited in The Power of Movement of Plants that the root system acts as a plant’s brain.

Due to the difficulty of accessing root tissue in intact live plants, research of these hidden parts has always lagged behind research on the more visible parts of plants. But now: a new technology–developed jointly by Carnegie and Stanford University–could revolutionize root research. The findings will be published in the large-scale biology section of the December issue of The Plant Cell. (more…)

Research Sheds New Light on Body Parts’ Sensitivity to Environmental Changes

By Guest PostNovember 23, 2011Sciencealexander shingleton, beacon, blood sugar levels, body parts, brain, changes in nutrition, energy, evolution in action consortium, fruit flies, glucose, humans, insulin, malnutrition, michigan state university, nongenetic, normal size, sensitive to environmental change, sensitivity to environmental issues, type 2 diabetes, variety of diseases, zeroing, zoology

EAST LANSING, Mich. — Research by a team of Michigan State University scientists has shed new light on why some body parts are more sensitive to environmental change than others, work that could someday lead to better ways of treating a variety of diseases, including Type-2 diabetes.

The research, led by assistant zoology professor Alexander Shingleton, is detailed in the recent issue of the Proceedings of the Library of Science Genetics. (more…)

To Ditch Dessert, Feed the Brain

By Guest PostSeptember 22, 2011Sciencebrain, brain imaging scans, fmri scans, glucose, glucose levels, high calorie food, hypothalamus, kathleen page, low calorie food, prefrontal cortex, rajita sinha, regulating impulses, striatum, twinkies, yale university

If the brain goes hungry, Twinkies look a lot better, a study led by researchers at Yale University and the University of Southern California has found.

Brain imaging scans show that when glucose levels drop, an area of the brain known to regulate emotions and impulses loses the ability to dampen desire for high-calorie food, according to the study published online September 19 in The Journal of Clinical Investigation. (more…)

Free Radicals Crucial To Suppressing Appetite

By Guest PostAugust 30, 2011Health, Sciencebrain and periphery, brain circuits, cellular mechanism, erika gyengesi, esther kim, free radical, free radical levels, free radicals damage cells, glucose, hormone leptin, hunger and satiety, hypothalamus, leptin resistance, melanocortin neurons, neurons, obesity, overeating, peroxisomes, peroxisomes protects, sabrina diano, tamas horvath, worldwide, yale school of medicine, zhong wu liu

Obesity is growing at alarming rates worldwide, and the biggest culprit is overeating. In a study of brain circuits that control hunger and satiety, Yale School of Medicine researchers have found that molecular mechanisms controlling free radicals-molecules tied to aging and tissue damage-are at the heart of increased appetite in diet-induced obesity.

Published Aug. 28 in the advanced online issue of Nature Medicine, the study found that elevating free radical levels in the hypothalamus directly or indirectly suppresses appetite in obese mice by activating satiety-promoting melanocortin neurons. Free radicals, however, are also thought to drive the aging process. (more…)

Avocado

By Guest PostJune 7, 2011Healthanti diarrheal, avocado, b1 and b2, benefits of the fruits, cancer biology, cartilage, central america, cholesterol, coughs, efficacy of avocado, fatty acids, flatulence, flavonoids, glucose, inflammation, menstruation, nutrients and healthy fats, oil, phytochemicals, proteins, saponins, therapeutic effect, tranquilizer, triglycerides, tumor cells, uvb rays, vitamins a

The benefits of the fruits and leaves of this therapeutic tree: this tree, native to Central America, is now grown all over the world.

All parts except the root, have a therapeutic effect. (more…)

Energy Drinks: To Drink or Not to Drink?

By PravdaJanuary 19, 2011Culture, Healthalcohol, asia, blood, caffeine, carbohydrates, carbonated, coffee, denmark, depression, dietrich matesic, diuretic effect, energy drinks, france, glucose, glucuronolactone, heart diseases, high blood pressure, high sugar levels, hong kong, hypertension, hypertensive crisis, increased anxiety, ingredients, mental activity, miracle drink, nervous breakdown, nervous system, norway, overdoses, oxidative processes, psychomotor agitation, red bull, stimulant, stimulate, tachycardia, taurine, tea, vitamins, vodka, workaholics

Energy drinks are a recent invention of mankind, even though their ingredients have long been used to stimulate the nervous system. They have become the salvation for students during the exams and office workers that have to meet the deadlines. Yet, are these products as good as they seem? (more…)

Researchers Find Link Between Sugar, Diabetes and Aggression

By Guest PostDecember 10, 2010Healthbloodstream, brad bushman, cool, diabetes rates, diabetic symptoms, energy for the brain, enzyme, glass of lemonade, glucose, healthy metabolism, hot temper, measure aggression, ohio state university, richard pond, self control, spoonful of sugar, timothy deckman, violent crime rates

COLUMBUS, Ohio — A spoonful of sugar may be enough to cool a hot temper, at least for a short time, according to new research.

A study found that people who drank a glass of lemonade sweetened with sugar acted less aggressively toward a stranger a few minutes later than did people who consumed lemonade with a sugar substitute.

Researchers believe it all has to do with the glucose, a simple sugar found in the bloodstream that provides energy for the brain. (more…)

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