Chemistry News 
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This page shows you the most recent publications within this specialty of the MedWorm directory. This is page number 36.
Video: BPA and obesity in kids: 3 facts
For the first time, a major study links childhood obesity and the synthetic chemical BPA. Dr. Leonardo Trasande, professor of pediatrics and environmental medicine at NYU, shares the details.
Source: Health News: CBSNews.com - September 18, 2012 Category: Consumer Health News Source Type: news
On This Day in Science History - September 19 - Detecting Neutrinos
September 19th is Masatoshi Koshiba's birthday. Koshiba is a Japanese physicist who was awarded the 2002 Nobel Prize in Physics for the detection of neutrinos.
The neutrino is a subatomic particle ...Read Full Post
Source: About.com Chemistry - September 18, 2012 Category: Chemistry Source Type: news
Heavy Children Found to Have More BPA
A new study has associated a chemical used in many food and drink containers with obesity in children and adolescents.
Source: WSJ.com: Health - September 18, 2012 Category: Pharmaceuticals Tags: PAID Source Type: news
High levels of BPA linked to childhood obesity in white children
Study's author says FDA should ban the chemical from packaging
Source: Health News: CBSNews.com - September 18, 2012 Category: Consumer Health News Source Type: news
Like a spring in a toy car: Catalysis mechanism of cell growth protein Ras clarified
Proteins accelerate certain chemical reactions in cells by several orders of magnitude. The molecular mechanism by which the Ras protein accelerates the cleavage of the molecule GTP and thus slows cell growth is described by biophysicists. Using a combination of infrared spectroscopy and computer simulations, they showed that Ras puts a phosphate chain under tension to such an extent that a phosphate group can very easily detach -- the brake for cell growth. Mutated Ras is involved in tumor formation, because this reaction slows down and the brake for cell growth fails.
Source: ScienceDaily Headlines - September 18, 2012 Category: Science Source Type: news
BPA in Food Packaging Tied to Child Obesity
However, it's not proven that the chemical causes increased weight
Source: HealthDay
Related MedlinePlus Pages: Environmental Health, Obesity in Children
Source: MedlinePlus Health News - September 18, 2012 Category: Consumer Health News Source Type: news
ScienceShot: Homing in on Sea Urchin Eggs
Spiny creatures' sperm cells use chemical attractants to locate eggs
Source: ScienceNOW - September 18, 2012 Category: Science Source Type: news
Higher levels of BPA in children and teens significantly associated with obesity
Researchers have revealed a significant association between obesity and children and adolescents with higher concentrations of urinary bisphenol A (BPA), a synthetic chemical recently banned by the U.S. Food and Drug Administration (FDA) from sippy cups and baby bottles. Still, the chemical continues to be used in aluminum cans, such as those containing soda.
Source: ScienceDaily Headlines - September 18, 2012 Category: Science Source Type: news
BPA in Foods, Drinks Linked to Childhood Obesity
Add the risk of childhood obesity to the list of health ills that may be linked to the controversial chemical bisphenol A (BPA), a new study shows.
Source: WebMD Health - September 18, 2012 Category: Consumer Health News Source Type: news
Study links BPA, obesity in kids
NEW YORK (Reuters Health) - Kids and teens that had higher levels of the chemical bisphenol A in their urine were more likely to be overweight or obese, in a new nationally-representative U.S. study.
Source: Reuters: Health - September 18, 2012 Category: Consumer Health News Tags: healthNews Source Type: news
Study Links Chemical to Obesity Risk
A new study has associated a chemical used in many food and drink containers with obesity in children and adolescents.
Source: WSJ.com: Health - September 18, 2012 Category: Pharmaceuticals Tags: PAID Source Type: news
Helium Voice is NOT Higher in Pitch
When you breathe in helium and talk or sing, you'll get that whole "Alvin and the Chipmunks" sound, but your voice will not actually be higher in pitch. Surprised? The ...Read Full Post
Source: About.com Chemistry - September 18, 2012 Category: Chemistry Source Type: news
Roles Of Novel Epigenetic Chemical In The Brain Involved In Memory And Learning
Researchers from the Centre for Addiction and Mental Health (CAMH) have identified a new role of a chemical involved in controlling the genes underlying memory and learning. "The brain is a plastic tissue, and we know that learning and memory require various genes to be expressed," says CAMH Senior Scientist Dr. Art Petronis, who is a senior author on the new study. "Our research has identified how the chemical 5-hmC may be involved in the epigenetic processes allowing this plasticity." Dr...
Source: Health News from Medical News Today - September 18, 2012 Category: Consumer Health News Tags: Neurology / Neuroscience Source Type: news
Reversible Method Of Tagging Proteins Developed By Chemists
Chemists at UC San Diego have developed a method that for the first time provides scientists the ability to attach chemical probes onto proteins and subsequently remove them in a repeatable cycle. Their achievement, detailed in a paper that appears online in the journal Nature Methods, will allow researchers to better understand the biochemistry of naturally formed proteins in order to create better antibiotics, anti-cancer drugs, biofuels, food crops and other natural products...
Source: Health News from Medical News Today - September 18, 2012 Category: Consumer Health News Tags: Biology / Biochemistry Source Type: news
GCSE announcement justifies RSC assertions over slipping standards
Today's announcement about changes to GCSEs in England is welcomed by the RSC, which first raised the issue of science exam standards five years ago.
Source: RSC News - September 18, 2012 Category: Chemistry Source Type: news
Plant phytonutrients shown to alter genes that halt cancer metastasis
Plants contain thousands of natural compounds that science has shown benefit human health and shield us against chronic diseases ranging from heart disease and stroke to diabetes, dementia and cancer. There are still thousands of yet unidentified chemical compounds in...
Source: NaturalNews.com - September 18, 2012 Category: Consumer Health Advice Source Type: news
Sodium fluoride exposed in new Health Ranger video; cities are poisoning their citizens with pesticide chemicals from China
We've just released a new, hard-hitting mini-documentary on sodium fluoride.
This is a must-see video for anyone who wants to know the true about where fluoride comes from, and how toxic it is to biology.
This video reveals how fluoride is sold as a chemical pesticide...
Source: NaturalNews.com - September 18, 2012 Category: Consumer Health Advice Source Type: news
Distilled Doesn't Mean Pure
Here's a comment a reader posted in response to my article on removing fluoride from water:"I've been taught that distilled water is the purest that one can drink. On the ...Read Full Post
Source: About.com Chemistry - September 18, 2012 Category: Chemistry Source Type: news
The George Washington University Researcher received $1.7 million to study solar cement
(George Washington University) Stuart Licht, professor of chemistry at the George Washington University's Virginia Science and Technology Campus, has been awarded $1.7 million to continue studying methods of producing cement and other fuels that reduce the amount of carbon dioxide emissions into the environment.
Source: EurekAlert! - Biology - September 18, 2012 Category: Biology Source Type: news
Best of Science Major Mouse
Science Major Mouse is another meme similar to Chemistry Cat. He's a small white mouse standing next to a pile of books nearly as tall has he is. The theme ...Read Full Post
Source: About.com Chemistry - September 18, 2012 Category: Chemistry Source Type: news
Northeastern's Barnett Institute announces formation of leading analytics company, BioAnalytix, LLC
(Northeastern University College of Science) The Barnett Institute of Chemical and Biological Analysis, a part of Northeastern University's College of Science has partnered in the formation of BioAnalytix, LLC -- a company specializing in the application of advanced biologic drug characterization methods and technologies to enable better, faster and more effective drug development and commercialization.
Source: EurekAlert! - Medicine and Health - September 18, 2012 Category: Global & Universal Source Type: news
RUB researchers clarify catalysis mechanism of cell growth protein Ras
(Ruhr-University Bochum) Proteins accelerate certain chemical reactions in cells by several orders of magnitude. The molecular mechanism by which the Ras protein accelerates the cleavage of the molecule GTP and thus slows cell growth is described by biophysicists at the Ruhr-Universitat Bochum in PNAS. Using a combination of infrared spectroscopy and computer simulations, they showed that Ras puts a phosphate chain under tension to such an extent that a phosphate group can very easily detach - the brake for cell growth.
Source: EurekAlert! - Medicine and Health - September 18, 2012 Category: Global & Universal Source Type: news
The future of diagnosing disease: New American Chemical Society Prized Science video
(American Chemical Society) Providing patients with faster diagnoses for influenza and other respiratory infections and new tests that improve care for heart disease is among the topics in the latest episode of the 2012 edition of a popular video series from the American Chemical Society, the world's largest scientific society. The videos are available at www.acs.org/PrizedScience and on DVD.
Source: EurekAlert! - Medicine and Health - September 18, 2012 Category: Global & Universal Source Type: news
Higher levels of BPA in children and teens significantly associated with obesity
(NYU Langone Medical Center / New York University School of Medicine) Researchers at NYU School of Medicine have revealed a significant association between obesity and children and adolescents with higher concentrations of urinary bisphenol A (BPA), a synthetic chemical recently banned by the U.S. Food and Drug Administration (FDA) from sippy cups and baby bottles. Still, the chemical continues to be used in aluminum cans, such as those containing soda.
Source: EurekAlert! - Medicine and Health - September 18, 2012 Category: Global & Universal Source Type: news
Higher levels of BPA in children and teens associated with obesity
(JAMA and Archives Journals) In a nationally representative sample of nearly 3,000 children and adolescents, those who had higher concentrations of urinary bisphenol A, a manufactured chemical found in consumer products, had significantly increased odds of being obese.
Source: EurekAlert! - Medicine and Health - September 18, 2012 Category: Global & Universal Source Type: news
Addiction Changes Brain
Pursuing rewards is a normal, healthy activity for most of us. But when addiction develops the pursuit of rewards can become pathological due to changes in the brain's chemistry.
Source: About.com Eating Disorders - September 18, 2012 Category: Eating Disorders and Weight Management Authors: backandneck.guide at about.com Tags: health Source Type: news
Roles of novel epigenetic chemical in the brain illuminated
Researchers have identified a new role of a chemical involved in controlling the genes underlying memory and learning.
Source: ScienceDaily Headlines - September 17, 2012 Category: Science Source Type: news
Scary and Spooky Halloween Jack o Lantern Idea
I did not set this Halloween jack o lantern on fire, yet it still has a scary and spooky vibe. This is an easy effect to produce.
Carve your pumpkin or use a plastic or foam jack o lantern.
Place a dish of hot water inside the pumpkin. Alternatively, you can pour the water directly into the jack o lantern.
Add a couple of pieces of dry ice.
Light birthday candles for eyes.
Note that dry ice sublimates to form carbon dioxide gas, which is a natural fire extinguisher. The reason the candles burn is because the carbon dioxide fog is heavier than air, so it sinks. When the fog dies down you can add more dry ice and hot water...
Source: About.com Chemistry - September 17, 2012 Category: Chemistry Source Type: news
Functions of Single-Strand DNA-Binding Proteins in DNA Replication, Recombination, and Repair
Double-stranded (ds) DNA contains all of the necessary genetic information, although practical use of this information requires unwinding of the duplex DNA. DNA unwinding creates single-stranded (ss) DNA intermediates that serve as templates for myriad cellular functions. Exposure of ssDNA presents several problems to the cell. First, ssDNA is thermodynamically less stable than dsDNA, which leads to spontaneous formation of duplex secondary structures that impede genome maintenance processes. Second, relative to dsDNA, ssDNA is hypersensitive to chemical and nucleolytic attacks that can cause damage to the genome. Cells de...
Source: Springer protocols feed by Protein Science - September 17, 2012 Category: Biochemistry Source Type: news
A Homogeneous Immunoassay of Thyroxine Based on Microchip Electrophoresis and Chemiluminescence Detection
A homogeneous chemiluminescent immunoassay of thyroxine (T4) present in serum samples is described. The proposed method deployed the competitive immunoreaction of T4 and horseradish peroxidase (HRP)-labeled T4 (HRP–T4) with anti-T4 mouse monoclonal antibody (Ab). HRP–T4 and the HRP–T4–Ab complex were separated and quantified by using microchip electrophoresis (MCE) with chemiluminescence (CL) detection. The MCE separation was accomplished within 60 s. Highly sensitive CL detection was achieved by means of HPR-catalyzed luminol-H2O2 reaction. The linear range for T4 was 5–250 nM with a detectio...
Source: Springer protocols feed by Biochemistry - September 17, 2012 Category: Biochemistry Source Type: news
An Overview of CE in Clinical Analysis
The development and general applications of capillary electrophoresis (CE) in the field of clinical chemistry are discussed. It is shown how the early development of electrophoresis was closely linked to clinical testing. The rise of gel electrophoresis in clinical chemistry is described, as well as the eventual developments that lead to the creation and the use of modern CE. The general principles of CE are reviewed and the potential advantages of this method in clinical testing are examined. Finally, an overview is presented of several areas in which CE is now being developed for use with clinical samples.
Source: Springer protocols feed by Biochemistry - September 17, 2012 Category: Biochemistry Source Type: news
How Bees Decide What To Be - 9/17/12
Johns Hopkins scientists report what is believed to be the first evidence that complex, reversible behavioral patterns in bees – and presumably other animals – are linked to reversible chemical tags on genes.
Source: Johns Hopkins Medicine News - September 17, 2012 Category: Research Source Type: news
FDA Targets Drug Side Effects
FDA is working to better predict medication side effects by detecting chemical or biological substances that could be life-threatening before products hit the market.
Source: FDA Consumer Updates - September 17, 2012 Category: Consumer Health Advice Source Type: news
Can You Balance an Egg on the Equinox?
The autumnal equinox is Saturday, September 22, 2012. This is the first day of fall in the northern hemisphere, or the first day of spring in the southern hemisphere. Are ...Read Full Post
Source: About.com Chemistry - September 17, 2012 Category: Chemistry Source Type: news
UMass Amherst Chemists Develop Nose-Like Sensor Array To 'Smell' Cancer Diagnoses
In the fight against cancer, knowing the enemy's exact identity is crucial for diagnosis and treatment, especially in metastatic cancers, those that spread between organs and tissues. Now chemists led by Vincent Rotello at the University of Massachusetts Amherst have developed a rapid, sensitive way to detect microscopic levels of many different metastatic cell types in living tissue. Findings appear in the current issue of the journal ACS Nano...
Source: Health News from Medical News Today - September 17, 2012 Category: Consumer Health News Tags: Medical Devices / Diagnostics Source Type: news
This Day in Science History - September 18 - Space Tortoises
September 18, 1968 is the day the Soviet space probe, Zond 5 became the first spacecraft to fly around the moon and return to Earth. It was designed to launch ...Read Full Post
Source: About.com Chemistry - September 17, 2012 Category: Chemistry Source Type: news
Consumption of pharmaceuticals in primary non-Alzheimer's degenerative dementias: a cross-sectional study by the Registry of Dementias of Girona (ReDeGi)
Source: Drugs and Aging
Area: Evidence > Medicines Management > References
Background: Limited information exists regarding the consumption of psychopharmaceuticals for non-Alzheimer's degenerative dementias (n-ADDs), despite the fact that the treatment of neuropsychiatric symptoms of these diseases is an important challenge for clinicians.
Objective: The aim of this study was to describe sociodemographic and clinical data from 235 patients with various subtypes of n-ADD, together with the level of consumption of pharmaceuticals with central nervous system activity.
Methods: A descriptive, observational, cross...
Source: NeLM - Mental Health - September 17, 2012 Category: Psychiatry Source Type: news
Chemists develop reversible method of tagging proteins
Chemists have developed a method that for the first time provides scientists the ability to attach chemical probes onto proteins and subsequently remove them in a repeatable cycle.
Source: ScienceDaily Headlines - September 16, 2012 Category: Science Source Type: news
How bees decide what to be: Reversible 'epigenetic' marks linked to behavior patterns
Scientists report what is believed to be the first evidence that complex, reversible behavioral patterns in bees -- and presumably other animals -- are linked to reversible chemical tags on genes.
Source: ScienceDaily Headlines - September 16, 2012 Category: Science Source Type: news
Bee study lifts lid on hive habits
Experiments on division of labour among honeybees reveal why some worker bees are foragers while others nurse their queensExperiments on the division of labour in honeybee hives have revealed why some bees do the waggle dance while others nurse their queens.The roles require drastically different behaviours, with nurses feeding the larvae and performing royal grooming duties, and foragers navigating great distances and performing complex dance routines to point others in the direction of rich sources of nectar.According to a report in the journal Nature Neuroscience, the job a worker bee does corresponds to distinct patter...
Source: Guardian Unlimited Science - September 16, 2012 Category: Science Authors: Ian Sample Tags: News guardian.co.uk Insects Environment Science Bees Wildlife Source Type: news
Nuclear fusion – your time has come
Harnessing nuclear fusion to create cheap, safe and sustainable energy used to be a futuristic joke. But its day is almost upon usEvery year, one typical coal-fired power station devours several million tonnes of fuel and produces even more carbon dioxide. Burning stuff has the virtue that it is simple but it is very brutal. That volume of carbon dioxide is damaging the atmosphere and, in the longer term, the fuel will run out. It is clear that the world needs an alternative to generating energy by setting fire to things.For a good few years now, nuclear fusion has looked like offering a solution to the problem. For every ...
Source: Guardian Unlimited Science - September 16, 2012 Category: Science Authors: Jeff Forshaw Tags: Science Source Type: news
Nuclear fusion – your day has come
Harnessing nuclear fusion to create cheap, safe and sustainable energy used to be a futuristic joke. But its day is almost upon usEvery year, one typical coal-fired power station devours several million tonnes of fuel and produces even more carbon dioxide. Burning stuff has the virtue that it is simple but it is very brutal. That volume of carbon dioxide is damaging the atmosphere and, in the longer term, the fuel will run out. It is clear that the world needs an alternative to generating energy by setting fire to things.For a good few years now, nuclear fusion has looked like offering a solution to the problem. For every ...
Source: Guardian Unlimited Science - September 16, 2012 Category: Science Authors: Jeff Forshaw Tags: Science Source Type: news
Scientists differentiate chemical bonds in individual molecules for first time using noncontact atomic force microscopy
IBM scientists have been able to differentiate the chemical bonds in individual molecules for the first time using a technique known as noncontact atomic force microscopy (AFM). The results push the exploration of using molecules and atoms at the smallest scale and could be important for studying graphene devices, which are currently being explored by both industry and academia for applications including high-bandwidth wireless communication and electronic displays.
Source: ScienceDaily Headlines - September 16, 2012 Category: Science Source Type: news
Chemistry of Hard and Soft Water
Do you have hard water or soft water? Both? Do you know why? Get the definitions for hard and soft water, learn about their chemistry, and examine the pros and ...Read Full Post
Source: About.com Chemistry - September 16, 2012 Category: Chemistry Source Type: news
Study Showing Rat Tumors from GMO Corn Shakes up Officials
Gilles-Eric Seralini, et. al just published a study in Journal of Food and Chemical Toxicity purportedly showing that rats on a diet of Monsanto's Roundup-tolerant genetically engineered corn developed more tumors and died sooner than rats on a non-GMO diet. The 'purportedly' modifier is included in the previous sentence intentionally. It turns out that the data do not seem to actually support these conclusions--at least not the published results....Read Full Post
Source: About.com Biotech Biomedical - September 16, 2012 Category: Biotechnology Source Type: news
On This Day in Science History - September 17 - Dr. Guillaume Duchenne
September 17th is Guillaume-Benjamin-Amand Duchenne du Boulogne's birthday. Duchenne was a French physician and pioneering neurophysiologist. He spent most of his career investigating muscular and neurological disorders after learning of ...Read Full Post
Source: About.com Chemistry - September 16, 2012 Category: Chemistry Source Type: news
Chemists develop reversible method of tagging proteins
(University of California - San Diego) Chemists at UC San Diego have developed a method that for the first time provides scientists the ability to attach chemical probes onto proteins and subsequently remove them in a repeatable cycle.
Source: EurekAlert! - Biology - September 16, 2012 Category: Biology Source Type: news
AP Chemistry Study Guides
I got an email from a student who was finding AP chemistry to be frustrating and not as fun as the high school chemistry she took as a junior. That's ...Read Full Post
Source: About.com Chemistry - September 16, 2012 Category: Chemistry Source Type: news
How bees decide what to be
(Johns Hopkins Medicine) Johns Hopkins scientists report what is believed to be the first evidence that complex, reversible behavioral patterns in bees - and presumably other animals - are linked to reversible chemical tags on genes.
Source: EurekAlert! - Social and Behavioral Science - September 16, 2012 Category: Global & Universal Source Type: news
On This Day in Science History - September 16 - Fahrenheit
September 16th marks the passing of Gabriel Fahrenheit. Fahrenheit was a German physicist who invented the alcohol and mercury thermometers. He is also the person responsible for the Fahrenheit temperature ...Read Full Post
Source: About.com Chemistry - September 15, 2012 Category: Chemistry Source Type: news
