HOME >> BIOLOGY >> NEWS
Study Ensures Effective Ways To Measure Macular Pigment Density

(FT. LAUDERDALE, Fla., May 9, 1999) - Dietary lutein and zeaxanthin are the major determinants to explain macular pigment optical density (MPOD), according to research presented today at the Association for Research in Vision and Ophthalmology 1999 annual meeting. The study was the largest ever conducted to examine the relationship between dietary, medical, physical and lifestyle factors, and macular pigment density, thought to be protective in age-related macular degeneration (AMD).

"Results confirmed and expanded upon what's already known about the determinants of macular pigment density. Dietary lutein and zeaxanthin explained the greatest amount of macular pigment density variance, followed by serum lutein levels," said Thomas Ciulla, M.D., Retinal Specialist, Indiana University School of Medicine and Ophthalmology Department in Indianapolis, Ind.

Ciulla and his colleagues examined the MPOD of a cross sectional population of 280 healthy men and women in Indianapolis. They determined that dietary lutein and zeaxanthin, serum lutein and eye color are the factors most strongly associated with macular pigment density. Ciulla cautions, however, that, taken together, these factors explained only 19.7 % variance in MPOD.

Lutein and zeaxanthin are concentrated in retinal macular pigment and accumulation is thought to be dependent on dietary intake. Macular pigment may filter blue light that damages photoreceptors and the retinal pigment epithelium. In addition, carotenoids may limit oxidant stress resulting from metabolism and light, acting as antioxidants.

In this study, serum concentrations for lutein, zeaxanthin and beta-carotene were measured by HPLC, and MPOD was measured by heterochromatic flicker photometry. Dietary patterns and demographic/medical characteristics were determined by questionnaire. This method of study was a non-invasive way to measure MPOD and also showed that MPOD can be rel
'"/>

Contact: Anne Tramer
atramer@selz.com
312-372-7090
Selz/Seabolt Communications
8-May-1999


Page: 1 2

Related biology news :

1. Study: Emission of smog ingredients from trees is increasing rapidly
2. Study explores gene transfer to modify underlying course of Alzheimers disease
3. Study reveals why eyes in some paintings seem to follow viewers
4. Study by Israeli scientists provides insight on DNA code
5. Study reveals first genetic step necessary for prostate cancer growth
6. Study of flu patients reveals virus outsmarting key drug
7. Study in Science reveals recreational fishing takes big bite of ocean catch
8. Study suggests cell-cycle triggers might be cancer drug targets
9. Study narrows search for genes placing men at increased risk for prostate cancer
10. Study links high carbohydrate diet to increased breast cancer risk
11. Study explains spatial orientation differences between sexes

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Study Ensures Effective Ways Measure Macular Pigment Density

(Date:5/18/2015)... , May 18, 2015 Fingerprint Cards ... FPC1020, FPC1025, FPC1145, FPC1155 and FPC1035 from one if its ... until and including Q3 2015 and the sensors will be ... Communicated order values for 2015 hereby amount to 740 MSEK ... 2015 of 140 MSEK and a number of smaller orders ...
(Date:5/11/2015)... DAYTON, Ohio , May 11, 2015  Through a ... Ohio had a strong showing at AUVSI,s ... . These representatives of Ohio,s UAS ... domestic and abroad from all points along the UAS ecosystem. ... Dayton Development Coalition,s (DDC) Vice President for Aerospace Rich ...
(Date:5/7/2015)... Sweden , May 7, 2015 ... touch fingerprint sensors, FPC1022 and FPC1035, FPC,s smallest ... and FPC1035 are mainly considered for integration on ... size gives smartphone OEMs increased possibilities to integrate ... The decreased size also improves possibilities for module ...
Breaking Biology News(10 mins):Fingerprint Cards Receives Touch Fingerprint Sensor Order of SEK 230 Million and Raises Revenue Guidance for 2015 2Ohio Flies High at Unmanned '15, Sets Stage for Ohio UAS Conference 2FPC Introduces its Smallest Touch Fingerprint Sensors to Date 2
(Date:5/29/2015)... May 29, 2015 Seoul Semiconductor ... in LED technology, on May 28th announced that ... share by strengthening its high efficient and high ... , Since 2011 Seoul Semiconductor has developed efficient ... market and has supplied LEDs for headlamps to ...
(Date:5/28/2015)... , May 28, 2015 /PRNewswire/ ... http://www.researchandmarkets.com/research/8h5hs2/animal ) has announced the addition ... Biotechnology - Technologies, Markets and Companies" ... , ,This report describes and evaluates ... veterinary medicine and pharmaceuticals as well ...
(Date:5/28/2015)... 2015 The Academy of Model Aeronautics Foundation ... on August 15, 2015. National Model Aviation Day was created ... introduce model flying to the general public. , The AMA ... participate in the celebration by hosting events in their own ... Model Aviation Day events. View our online event map ...
(Date:5/28/2015)... , May 28, 2015  PDS Biotechnology Corp. ... immunotherapy treatment targeting HPV-16, has generated strong T-cell ... Currently, pre-cervical cancer is treated by surgical removal ... and effective non-surgical alternative. Results show that it ... to recognize, target, and kill precancerous and cancerous ...
Breaking Biology Technology:Seoul Semiconductor Increases the Global Automotive LED Market Share with its High Efficient and Reliable LEDs for Automotive Lightings 2Global Animal Biotechnology Report 2015 - Technologies, Markets and Companies Analysis to 2024 2Global Animal Biotechnology Report 2015 - Technologies, Markets and Companies Analysis to 2024 3Model flying pilots celebrate the Academy of Model Aeronautics Foundation’s Third Annual National Model Aviation Day 2PDS Biotechnology reports positive Phase I clinical trial results in proprietary HPV-Cancer Immunotherapy 2
Cached News: