Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Why Popeye only has eyes for spinach

26.09.2006
Eating spinach could protect your eyes from the leading cause of blindness in western society, say experts at The University of Manchester.

With the aid of a new eye instrument, they have launched a study to see if the vegetable that endows Popeye with his super-human strength could also explain why the 77-year-old sailor has no need for spectacles!

Spinach and some other vegetables like sweetcorn, kale and broccoli are rich in a chemical called lutein, which, together with another carotenoid, zeaxanthin, form an oily, yellow substance at a central point of the retina known as the macula.

This yellow oil, called macular pigment, is thought to protect the macula from age-related macular degeneration or AMD, a disease that studies in the UK have shown to affect up to 12% of men and 29% of women over the age of 75.

“The macula is a small area of the retina responsible for seeing detail and colour in our central field of vision,” said Dr Ian Murray, who is leading the research in Manchester's Faculty of Life Sciences.

“Our work has already found strong evidence to suggest that macular pigment provides some protection against AMD but we want to discover whether eating vegetables rich in these chemicals will have a direct impact on the disease.

“Since macular pigment is wholly derived from our diet we would expect that eating foods containing high levels of these compounds increases macular pigment and so helps slow the degenerative process. This latest study on volunteers with early-stage AMD will test that idea.”

Scientists do not yet understand why some people are susceptible to age-related macular degeneration but warn the incidence is likely to rise as the population ages.

In collaboration with Tinsley Ophthalmic Instruments, Dr Murray's lab has developed a lightweight instrument that can measure the levels of lutein and zeaxanthin and provide an indication as to whether low levels of macular pigment may be linked with premature visual impairment.

“If the instrument demonstrates that the patient has low levels of macular pigment then they can be advised to take a lutein or zeaxanthin supplement and encouraged to eat vegetables high in these carotenoids.

“AMD is a devastating disease where sufferers slowly lose central vision making reading and most day-to-day activities virtually impossible. The main risk factors for the disease are age and heritance but it is also linked to controllable factors such as poor diet, smoking and obesity.

“Having their macular pigment measured and learning about the health of their eyes might be the first step to a change in lifestyle for many people.”

Aeron Haworth | alfa
Further information:
http://www.manchester.ac.uk
http://www.armd.org.uk

More articles from Health and Medicine:

nachricht NTU scientists build new ultrasound device using 3-D printing technology
07.12.2016 | Nanyang Technological University

nachricht How to turn white fat brown
07.12.2016 | University of Pennsylvania School of Medicine

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

Im Focus: MADMAX: Max Planck Institute for Physics takes up axion research

The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.

The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

NTU scientists build new ultrasound device using 3-D printing technology

07.12.2016 | Health and Medicine

The balancing act: An enzyme that links endocytosis to membrane recycling

07.12.2016 | Life Sciences

How to turn white fat brown

07.12.2016 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>