Navigation Links
Chickens May Provide Clues to Color Vision
Date:2/19/2010

Studies of retinal differences in birds could lead to treatments for blindness, researchers say

FRIDAY, Feb. 19 (HealthDay News) -- Chickens and other birds have a better ability to see color than humans, a new study finds.

U.S. scientists mapped five types of light receptors in the chicken's eye and found that the receptors are arranged in interwoven patterns that maximize the bird's ability to see many colors in any part of the retina, the light-sensing structure at the back of the eye.

The findings were published recently in the journal PLoS One.

"Based on this analysis, birds have clearly one-upped us in several ways in terms of color vision. Color receptor organization in the chicken retina greatly exceeds that seen in most other retinas and certainly that in most mammalian retinas," study senior author Dr. Joseph C. Corbo, an assistant professor of pathology and immunology and of genetics at Washington University School of Medicine in St. Louis, said in a news release from the school.

The superior color vision in birds is likely because they didn't have to spend a lot of time in the dark during their evolution. In contrast, most mammals were nocturnal for millions of years. Daytime vision relies on light receptors called cones, while night vision relies on receptors called rods. Birds have more types of cones than mammals.

"The human retina has cones sensitive to red, blue and green wavelengths," Corbo said. "Avian retinas also have a cone that can detect violet wavelengths, including some ultraviolet, and a specialized receptor called a double cone that we believe helps them detect motion."

Learning more about how color receptors are organized could help lead to new treatments for the nearly 200 genetic disorders that cause various forms of blindness in humans.

"Many of the inherited conditions that cause blindness in humans affect cones and rods, and it will be
'/>"/>

Copyright©2010 ScoutNews,LLC.
All rights reserved

Page: 1 2

Related medicine news :

1. FDA Approves Camelina for Broiler Chickens
2. Live Chickens on Trucks Could Transmit Dangerous Germs
3. Nurtur Is Selected By Keenan & Associates as Exclusive Provider of Disease Management Programs
4. Pollen.com Launches Features to Customize Allergy Information - Top Allergy Web Site Provides ZIP-specific Allergy Information and Diary to Track Symptoms
5. BCS Global Launches PSVN (Public Switched Video Network), an Initiative to Provide a Framework for Inter-Connecting Business to Business Video Networks
6. The Voice of Compassionate Cancer Treatment Just Got Louder: Website Provides Resources and a Call to Action for the Medical Community
7. Save the Children Provides Songs with Lifesaving Health and Nutrition Advice to Haitian Radio Stations
8. Top Raleigh Dentist Robert Williamson Designated A Preferred Invisalign Provider
9. MarquisNet Co-Location Agreement with MessageBroadcast Helps Message Delivery Provider Expand World-Class Network
10. Southridge LLC Provides Equity Capital Through Private Agreement with PuraMed Bioscience
11. Rhode Island Settlement Reflects Homeowner Liability for Serving Alcohol to Those Under 21, Says Providence Lawyer Mark Gemma
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/31/2014)... CA (PRWEB) August 31, 2014 Kicking ... kicking coach Matt Nelson of Matt Nelson Kicking Academy ... business, and on being a National Camp Series (NCS) ... of HustedKicking.com. , "Matt Nelson is another high quality ... many attributes to coaching. He is an outstanding ...
(Date:8/31/2014)... August 31, 2014 This September, ... California State Library, celebrates 30 years of changing ... Since its inception, California’s Library Literacy Services has ... learn to read and write. , To mark ... the state is launching a month-long awareness campaign ...
(Date:8/31/2014)... 2014 With the NCAA set to ... hosted an interview with Yale University Associate Athletic Director ... Yale’s approach to ensuring student-athlete experience that is consistent ... highlighted a number of key factors that contribute to ... critical factor in creating this culture seems simple at ...
(Date:8/31/2014)... 31 August 2014: Renal denervation seems to be more ... hypertension when it includes accessory renal arteries, according to ... Schmiedel from Germany. , Dr Schmiedel said: "More than ... is defined as blood pressure (BP) greater than 140/90 ... hypertension (rHTN) and are unable to reduce BP below ...
(Date:8/31/2014)... Barcelona, Spain Sunday 31 August 2014: Drinking tea ... 131 000 people presented at ESC Congress today by ... "If you have to choose between tea or coffee ... are important components of our way of life. Their ... the past with sometimes divergent results. We investigated the ...
Breaking Medicine News(10 mins):Health News:MichaelHusted.com Features an Interview with Matt Nelson of Matt Nelson Kicking Academy on His Role as a Kicking Coach and on Becoming a National Camp Series Associate 2Health News:MichaelHusted.com Features an Interview with Matt Nelson of Matt Nelson Kicking Academy on His Role as a Kicking Coach and on Becoming a National Camp Series Associate 3Health News:California Library Literacy Services Celebrates 30th Anniversary 2Health News:California Library Literacy Services Celebrates 30th Anniversary 3Health News:Yale University’s Steve Conn Discusses NCAA Football, Student-Athlete Experience, & Social Media SCI Talk Interview 2Health News:Yale University’s Steve Conn Discusses NCAA Football, Student-Athlete Experience, & Social Media SCI Talk Interview 3Health News:Renal denervation more successful when it includes accessory arteries 2Health News:Drinking tea reduces non-CV mortality by 24 percent 2Health News:Drinking tea reduces non-CV mortality by 24 percent 3
... ARLINGTON, Va., Nov. 16 Acknowledging that their results ... in the International Journal of Andrology nevertheless attempt to link ... to maternal exposure to phthalates. The researchers, led by ... previous, and much publicized, study of phthalate exposure to evaluate ...
... , SOUTH SAN FRANCISCO, Calif., Nov. 15 ... Company will hold a teleconference and webcast at 8:00 a.m. Eastern ... Phase 3 SPEAR (Study of Picoplatin Efficacy After Relapse) trial of ... Conference Call and Webcast Information , To participate ...
... 15 The World Champion New York Yankees ... at New York Blood Center,s (NYBC) Biennial Chairman,s Dinner this ... The event is chaired by William J. Mullaney, MetLife ... the opportunity to honor these two outstanding supporting organizations as ...
... ... its intention to begin the drug registration process in Brazil and Colombia for its ... United States for the treatment of moderate to severe (Stage 2) chronic pain. ... Plantation, FL (Vocus) ...
... , ... from the RecordAF,registry (REgistry on Cardiac rhythm disORDers assessing ... Sessions of the,American Heart Association, show that in recently ... rhythm-control strategy,provides better short term control of the arrhythmia ...
... when new lead is needed in heart devices, ... -- Replacing or adding wiring increases the risk ... replace a pacemaker or other heart rhythm-stabilizing device, ... complication rates among patients enrolled in the REPLACE ...
Cached Medicine News:Health News:Swan Study Authors Note Results 'Not Straightforward' 2Health News:Poniard Pharmaceuticals to Host Conference Call and Webcast at 8:00 a.m. Eastern Time Tomorrow to Discuss Results of Pivotal Phase 3 SPEAR Trial in Small Cell Lung Cancer 2Health News:World Champion New York Yankees, BNY Mellon to be Honored as New York Blood Center 'Champions of Life' 2Health News:Nutra Pharma Announces Plans to Begin Drug Registration Process in South America for its Over-the-Counter Pain Reliever 2Health News:Nutra Pharma Announces Plans to Begin Drug Registration Process in South America for its Over-the-Counter Pain Reliever 3Health News:Nutra Pharma Announces Plans to Begin Drug Registration Process in South America for its Over-the-Counter Pain Reliever 4Health News:First Global Atrial Fibrillation Registry, RecordAF, Shows Rhythm-Control Strategy With Current Therapies Achieves Improved Disease Control but not Clinical Outcomes 2Health News:First Global Atrial Fibrillation Registry, RecordAF, Shows Rhythm-Control Strategy With Current Therapies Achieves Improved Disease Control but not Clinical Outcomes 3Health News:First Global Atrial Fibrillation Registry, RecordAF, Shows Rhythm-Control Strategy With Current Therapies Achieves Improved Disease Control but not Clinical Outcomes 4Health News:First Global Atrial Fibrillation Registry, RecordAF, Shows Rhythm-Control Strategy With Current Therapies Achieves Improved Disease Control but not Clinical Outcomes 5
(Date:8/29/2014)... , Aug. 29, 2014  BC Technical, the nation,s ... Polaris Medical Imaging, a leader in sales, service and ... acquisition allows BC Technical to continue to expand their ... MR and CT modalities. "We are ... Mark Alvarez , president and CEO of BC ...
(Date:8/29/2014)... DENVER , Aug. 29, 2014 Does your ... date, nearly 800 doctors have recommended marijuana to the over ... Amendment 20. But the majority of the other roughly 20,300+ ... still know very little about it – even though a ... adults say they have tried it. ...
(Date:8/29/2014)... Diseases largely eradicated in the ... Measles was declared eliminated in 2000, yet the CDC ... 15—the highest incidence in 20 years. In July, ... cough a problem of "epidemic proportions." ... from these preventable diseases—in part because some parents (more ...
Breaking Medicine Technology:BC Technical Acquires Polaris Medical Imaging 2Medical Rules Marijuana Sales in Colorado But Most Doctors Still in the Dark 2Medical Rules Marijuana Sales in Colorado But Most Doctors Still in the Dark 3Medical Rules Marijuana Sales in Colorado But Most Doctors Still in the Dark 4Vaccines at the Crossroads: Outbreaks On the Rise Across America 2Vaccines at the Crossroads: Outbreaks On the Rise Across America 3
... Calif., April 8, 2011 Amgen (NASDAQ: ... the expansion of its operations in Brazil, including the ... has also agreed to reacquire rights in Brazil to ... acquired by Hypermarcas). Together, these transactions will provide Amgen ...
... the leading health care supply contracting company, announced today ... to its portfolio of agreements for Cardiac Rhythm Management ... leading provider of medical devices which treat cardiac, neurological ... portfolio of arrhythmia management products, including pacemakers, implantable cardioverter ...
Cached Medicine Technology:Amgen Establishes Commercial Operations in Brazil 2Amgen Establishes Commercial Operations in Brazil 3Amgen Establishes Commercial Operations in Brazil 4Novation Announces the Addition of St. Jude Medical to the Cardiac Rhythm Management Products Portfolio 2
Comfor™ Cast Boot - Rocker Sole - Closed Toe...
The Multi-Purpose Medical-Surgical Shoe...
... assay for the qualitative and ... to Gliadin in human serum. ... be used as an aid ... disorders, mainly Coeliac Disease. This ...
... For use as a non-reactive quality assurance reagent ... Toxoplasma gondii (TOXO IgG and TOXO IgM), IgG ... and rubella IgM), IgG and IgM antibodies to ... IgM antibodies to herpes simplex virus types 1 ...
Medicine Products: