Navigation Links
Tears reveal some of their deepest secrets to researchers

It's no secret why we shed tears. But exactly what our tears are made of has remained a mystery to scientists.

A new study sheds some light on the complex design of tears. What we think of as tears, scientists call tear film, which is made up of three distinct, microscopic layers. The middle, watery layer ?what we normally think of as tears when we cry ?is sandwiched between a layer of mucus and an outer layer of fatty, oily substances collectively called meibum.

It's in this outer layer that researchers describe, for the first time, a new class of lipids ?a type of fat ?that make up part of the film. They also identified one of these lipids, oleamide, which had not been known to be a part of tears before.

With each blink, meibum spreads over the surface of the eye. It keeps the watery middle layer in place, ensuring that our eyes stay moist.

Finding these lipids may help scientists better understand the causes of eye-related disorders such as dry eye disease, which affects anywhere from 12 to 14 million Americans, said Kelly Nichols, the study's lead author and an assistant professor of optometry at Ohio State University.

"The lack of certain compounds in the tear film may result in a number of different eye-related disorders, including dry eye," she said. "The amount of oleamide and related lipids in tear film may be related to these disorders."

Dry eye is really a collection of irritating symptoms that includes microscopic damage to the front of the eye. The eyes may ache, burn, feel extremely dry or excessively tear.

The researchers report their findings in the current issue of the journal Investigative Ophthalmology and Visual Science.

They collected oily meibum secretions from the meibomian glands of healthy volunteers. The meibomian glands are tiny, grape-like clusters of cells that line the rim of our upper and lower eyelids ?the outlets to these glands are roughly adjacent to the e
'"/>

Source:Ohio State University


Page: 1 2 3

Related biology news :

1. Elusive HIV shape change revealed; Key clue to how virus infects cells
2. Timing is everything: First step in protein building revealed
3. Researchers reveal the infectious impact of salmon farms on wild salmon
4. A bacterial genome reveals new targets to combat infectious disease
5. Scientists reveal molecular secrets of the malaria parasite
6. Studies reveal methods viruses use to sidestep immune system
7. First real-time view of developing neurons reveals surprises, say Stanford researchers
8. Examination of internal wiring of yeast, worm, and fly reveals conserved circuits
9. Family trees of ancient bacteria reveal evolutionary moves
10. NYU study reveals how brains immune system fights viral encephalitis
11. Iron exporter revealed that may explain common human disorder
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Tears reveal some their deepest secrets researchers

(Date:1/22/2015)... Jan. 13, 2015 Technology Showcase, Hall E -   ... solutions, today announced it will showcase its EyeLock ID technology ... the Department of Energy,s Oak Ridge National Laboratory ... . EyeLock,s iris identity authentication technology is being used to ...
(Date:1/22/2015)... and POINT ROBERTS, Washington , ... source covering leading sectors including technology and tech stocks, releases ... marketplace featuring master pickpocket and security consultant Apollo Robbins ... stolen and talks about the Wocket™ biometric smart wallet, a ...
(Date:1/22/2015)... NEW YORK , Jan. 22, 2015   EyeLock, Inc. ... announced it has appointed Steve Gerber to the ... Gerber will be responsible for leading development of mobile platforms ... 25 years of success and innovation in the semiconductor industry ...
Breaking Biology News(10 mins):EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 2EyeLock Debuts First Iris Authentication Technology Embedded in 3D Printed Automobile 3Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 2Apollo Robbins Talks about the Illusion of Personal Safety and How Easily Your Wallet is Stolen; If a Wocket Wallet is Stolen the Thief Can't do Anything With it! 3EyeLock Names Steve Gerber as Senior Vice President of Mobile and Wearables 2
... after Americans have headed to the polls to elect their ... of Current Biology , a Cell Press publication, reveals ... the time they reach a consensus to go for the ... that stickleback fish preferred to follow larger over smaller leaders," ...
... DALLAS Researchers at Southern Methodist University (SMU) and ... a group of chemical compounds that slow the degeneration ... Parkinson,s and amyotrophic lateral sclerosis (ALS). ... of Experimental Biology and Medicine . SMU Chemistry ...
... (Nov. 13, 2008) -- Not knowing which way is ... of the senses, called spatial disorientation, is responsible for ... the United States, with 90 percent of these being ... Although there have been no spatial disorientation accidents in ...
Cached Biology News:Fish choose their leaders by consensus 2Fish choose their leaders by consensus 3Protecting neurons could halt Alzheimer's, Parkinson's diseases 2Space researchers developing tool to help disoriented pilots 2Space researchers developing tool to help disoriented pilots 3
(Date:2/26/2015)... (PRWEB) February 26, 2015 The ... -12, at the Ernest N. Morial Convention Center ... (count as of February 19, 2015) displaying products ... industrial, academic, and government labs. The Exposition will ... but not limited to, analytical chemistry; drug discovery; ...
(Date:2/26/2015)... MD (PRWEB) February 26, 2015 RURO, ... provider, released FreezerPro® version 6.2 – the latest update ... FreezerPro® reputation is that of a quick and easy ... work. With the latest version, RURO engineering has enhanced ... import to move large amounts of sample records. ...
(Date:2/26/2015)... (PRWEB) February 26, 2015 Regis Technologies ... the development of oncology drug substances. , Regis Technologies ... of their new Potent Compound Suite (PCS) for 2015. ... 36,000 square foot, cGMP facility in Morton Grove, Illinois. ... manufacturing of potent compounds up to about one kilogram ...
(Date:2/26/2015)... 2015  Epic Sciences announced today that President and ... the 35th Annual Cowen and Company Health Care Conference ... Room, 3rd Floor. The conference will be held at ... Epic is developing diagnostic tests of high clinical ... changes that occur during the course of cancer treatments. ...
Breaking Biology Technology:Pittcon 2015 Announces Exposition Highlights 2RURO Releases FreezerPro® version 6.2 2Regis Extends cGMP Services to Oncology Market 2Epic Sciences to Present at 35th Annual Cowen and Company Health Care Conference 2
... Fusion2006 was to make information technology work ... delivered, private-sector CIOs would be well advised to avoid ... a dominant theme of the second annual CEO-CIO symposium, ... linkage with their CEOs and linking information technology with ...
... creates a bigger entity to deal with for regulators. , ... term "revestiture". In it, I observed that consolidation just ... is a natural evolution and is critical for survival: , ... call the telecom "revestiture". Revestiture is the industry's modern attempt ...
... LLC , a software company in Waukesha that sells home ... programs, said on Thursday it has been acquired by a ... it would expand its offerings to manufacturers and retailers by ... and product pictures. Big Hammer operates one of 11 authorized ...
Cached Biology Technology:IT can't be separate from core business 2Old bell system merging back together, but it's not the same 2Old bell system merging back together, but it's not the same 3Old bell system merging back together, but it's not the same 4
... Shakers combine high durability and capacity ... of use. The patented triple-counterbalanced heavy-duty ... to run at high speed with ... temperature range is delivered with tight ...
Medium bottle for hybridization 250 x 35mm...
... with any of UVP's Doc-It systems. When ... 1D Analysis software onto your existing computer. ... functions and enhancement tools. Doc-It 1D Analysis ... algorithms for quick and accurate electrophoresis analysis., ...
... generation dispenser combining the most versatile features for ... the existing Multidrop dispensers. , ,It is ... 500 nl up to 2500 l with excellent ... optimized for multiple plate formats (96, 384, 1536) ...
Biology Products: