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Vitamins ‘may shorten your life’

April 17, 2008

Copenhagen University research has suggested that certain vitamin supplements do not extend life and could even lead to a premature death.

A review of 67 studies with trials involving 233,000 people found “no convincing evidence” that antioxidant supplements cut the risk of dying,” and suggested that vitamins A and E could interfere with the body’s natural defences, and that beta-carotene, vitamin A, and vitamin E seem to increase mortality.… read more

Vitamin E may delay decline in mild-to-moderate Alzheimer’s Disease, study finds

January 1, 2014

(Credit: iStock)

New research published online first in the Jan. 1 Journal of the American Medical Association suggests that alpha tocepherol (fat-soluble Vitamin E and antioxidant), may slow functional decline — problems with daily activities such as shopping, preparing meals, planning, and traveling — in patients with mild-to-moderate Alzheimer’s disease and decrease caregiver burden.

Vitamin E did not show delay of cognitive or memory deterioration in the research.

“Since the cholinesterase… read more

Vitamin D Protects Cells From Stress That Can Lead To Prostate Cancer

May 14, 2008

University of Rochester Medical Center researchers and their colleagues have found that vitamin D induces a gene, G6PD, to increase expression of a key enzyme, protecting healthy prostate cells from the damage and injuries that can lead to cancer.

The enzyme clears cells of reactive oxygen species (ROS), molecules that can damage DNA and injure cells.

University of Rochester Medical Center News Release

Vitamin D May Lower Some Cancer Risk

December 29, 2005

There is growing evidence that vitamin D helps protect against colorectal cancer, and now a group of researchers who have long studied the vitamin say the same is true for breast cancer and ovarian cancer.

The researchers recommend 1,000 international units (IU) of vitamin D daily. Current recommendations call for people between the ages of 1 and 50 to consume 200 IU of vitamin D daily, with 400 IU… read more

Vitamin D May Help Curb Breast Cancer

May 20, 2008

Mount Sinai Hospital (Toronto) researchers found that women with insufficient vitamin D were nearly twice as likely to have their cancer recur or spread over the next 10 years, and 73 percent more likely to die of the disease.

In another study, University of California San Diego researchers found an association between sun exposure and lowered breast cancer rates. (Ultraviolet B radiation in sunlight triggers production… read more

Vitamin D deficiency may be linked to brain dysfunction

April 22, 2008

Scientists at Children’s Hospital & Research Center at Oakland have found evidence for vitamin D’s involvement in brain function, warranting vitamin D supplementation for groups chronically low in vitamin D, particularly nursing infants, the elderly, and African Americans.

The evidence includes wide distribution of vitamin D receptors throughout the brain and the vitamin’s ability to affect proteins in the brain known to be directly involved in learning and memory,… read more

Vitamin D casts cancer prevention in new light

April 29, 2007

Cancers in rich countries isn’t caused mainly by pollutants but by a vitamin D deficiency, research suggests.

Researchers are linking low vitamin D status to a host of other serious ailments, including multiple sclerosis, juvenile diabetes, influenza, osteoporosis and bone fractures among the elderly.

A four-year clinical trial involving 1,200 women found those taking the vitamin had about a 60-per-cent reduction in cancer incidence, compared with those who… read more

Vitamin D a key player in overall health of several body organs

October 10, 2008

Anthony Norman, a UC Riverside expert on vitamin D, has found 36 organ tissues in the body whose cells respond biologically to vitamin D, inciuding bone marrow, breast, colon, intestine, kidney, lung, prostate, retina, skin, stomach and the uterus; deficiency of vitamin D can impact all of them, and also cause muscle strength decrease, high risk for falls, and increased risk for colorectal, prostate and breast and other major cancers.… read more

Vitamin C lowers levels of inflammation biomarker considered predictor of heart disease

November 14, 2008

A new study led by researchers at the University of California, Berkeley adds to the evidence that vitamin C supplements can lower concentrations of C-reactive protein (CRP), a biomarker for elevated risk of cardiovascular problems and diabetes.

However, they also found that treatment with vitamin C is ineffective in persons whose levels of CRP are less than 1 milligram per liter. The researchers also said that for people with… read more

Vitamin C jabs may combat cancer

August 5, 2008

National Institute of Diabetes and Digestive and Kidney Diseases researchers injected immune-deficient mice with cells from three aggressive human cancers — ovarian and pancreatic tumors, plus a form of brain cancer called glioblastoma — and found that vitamin C injections slowed tumour growth by up to 53%.

By injecting into the bloodstream, it is possible to get much larger amounts of the vitamin to a tumor than is possible… read more

Visualizing how TMS affects groups of neurons in real time

September 17, 2014

Spatiotemporal activity patterns induced by a single TMS pulse (left) and 10 Hz TMS (right) over 50 milliseconds (credit: Vladislav Kozyre et al./

German neuroscientists have developed a method for recording the effects of transcranial magnetic stimulation (TMS) on animals in real time, using voltage-sensitive dyes, which emit fluorescent light signals that indicate which groups of neurons are activated or inhibited.

Using fMRI is too slow to show real-time effects, and with rapid measurement methods like EEG and MEG, the TMS magnetic field generates artifacts.

So RUB researchers headed by… read more

Visualizing data in the AlloSphere

April 16, 2009

TED has just released a video with JoAnn Kuchera-Morin, who demos the AlloSphere, an entirely new way to see and interpret scientific data, in full color and surround sound inside a massive metal sphere. Dive into the brain, feel electron spin, hear the music of the elements …

Composer JoAnn Kuchera-Morin is the director of the Center for Research in Electronic Art Technology (CREATE) at… read more

Visualising invisibility

August 1, 2006

A new study published in the New Journal of Physics describes the physics of several theoretical devices that could create invisibility.

The ideas in the paper are based around devices that will bend light or radio waves around a hole inside a device. Any object placed inside the hole will become invisible.

There are advances being made in metamaterials that mean the first devices will probably be used… read more

Visual Strategies

September 4, 2012

visual-strategies-book

A new book, Visual Strategies, by Felice C. Frankel and Angela H. DePace is “a guide to graphics for scientists and engineers, but it will be useful for anyone who wants to make clear presentations of data of any kind, The New York Times reports.

The book offers general guidelines, with illustrative graphics, and many real-life case studies. The authors show how they… read more

Visual computing still decades from computational apex

March 9, 2012

Left_Eye_Retina

With 120 million monochrome and 5 million color receptors, the eye and brain are able to do what even our most advanced cameras are unable to, according to computer graphics pioneer Tim Sweeney of Epic Games.

With a resolution of about 30 megapixels, the human eye is able to gather information at about 72 frames per second, which explains why many gamers debate the need for frame rates higher than… read more

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