Navigation Links
Origin of cells for connective tissues of skull and face challenged
Date:5/23/2008

eral nervous system or pigmentation did not affect craniofacial structures, whereas mutations that caused abnormal development of skeletal and connective tissue of the head and face did not alter neural crest-derived pigment or peripheral nervous system cells.

This paradox, he said, led him to wonder if different genetic programs were required to function in distinct embryonic precursors of these tissues. "In our new paper," he said, "we finally were able to re-examine some of the underlying assumptions that have led to the conventional wisdom about the source of the embryonic cell lineages that give rise to the skeleton and connective tissue of the head and face."

In the mouse embryo at eight days gestation, Weston and collaborators used high-resolution imaging and immunostaining techniques to identify and track the dispersal of cells known to jump start connective and skeletal tissue development. They were able to see clearly that these cells came from the non-neural layer of cells rather than from the neural crest. The same distinction also exists in chicken embryos during the first few days of gestation, Weston noted. "Looking at the right time is very important," he said.

Weston argues that this non-neural epithelium is indeed distinct from the neural crest, because its cells contain characteristically different molecules. He and colleagues dispute suggestions that this non-neural structure is simply a sub-domain of the neural crest. "These cells emerge at a different time in development and disperse in the embryo before neural crest cells begin to migrate," Weston said.

"New technologies let us see cell types more clearly than ever before," said Weston, a member of the UO's Institute of Neuroscience. "We previously had discovered that a molecule that marks cell surfaces in the non-neural epithelium reveals a very sharp boundary between this non-neural epithelium and the neural tissue connected to the neural crest. In this st
'/>"/>

Contact: Jim Barlow
jebarlow@uoregon.edu
541-346-3481
University of Oregon
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Plague of kangaroos threatens one of Australias last remaining original native grasslands
2. The cooperative view: New evidence suggests a symbiogenetic origin for the centrosome
3. Freshwater herring had salty origin
4. Clues to ancestral origin of placenta emerge in Stanford study
5. Researchers close in on origins of main ingredient of Alzheimers plaques
6. Technique traces origins of disease genes in mixed human populations
7. Experts prove the geochemical origin of part of the CO2 emissions in semiarid climates
8. Fungi can tell us about the origin of sex chromosomes
9. Study shows Darwin was wrong about the origins of chickens
10. Darwin was wrong about the wild origin of the chicken
11. ASU researcher may have discovered key to life before its origin on Earth
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... Inc. (NASDAQ: NXTD and NXTDW) a biometric authentication company ... of the Wocket™ smart wallet at CES 2015 in Las ... one of the "11 Hot Products at CES" in a review published ... Far" by Newseveryday.com and "The top 10 gadgets from CES 2015" by ...
(Date:1/22/2015)... 2015   EyeLock, Inc. , a market leader of iris-based ... Gerber to the new role of Senior Vice President ... development of mobile platforms and wearable solutions for EyeLock,s technologies. ... in the semiconductor industry to his role at EyeLock, with ...
(Date:12/22/2014)... Holiday Season may be the brightest ever for the ... long anticipated floodgates for consumer biometrics may finally be ... tablets, and wearable mobile devices that incorporate biometrics will ... nearly 4.8 billion biometric devices by 2020.   ...
Breaking Biology News(10 mins):CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 3EyeLock Names Steve Gerber as Senior Vice President of Mobile and Wearables 2First Season of Holiday Shopping with Mobile Biometric Payments Wraps Up With a Present for Biometrics Industry: A Rosy Forecast for More Than 2 Billion Users of 4.8 Billion Mobile Biometric Devices by 2020 2
... flowers have evolved particular colours, shapes and scents ... using artificial flowers and high-speed video, researchers have ... hummingbirds and the flowers they pollinate. The study, ... Functional Ecology , is the first to measure ...
... grey seal mums adopt risky tactics when it comes to the ... a real advantage, according to scientists. Researchers from Durham University, ... colonies in Scotland, found that some seal mothers are flexible in ... their actions, whilst other play it safe and steady. ...
... Calif.) When your neighbor asks to borrow a cup of ... of the give and take that characterize your longstanding relationship? Or ... of sugar you borrowed last week, or may need to borrow ... anthropology at UC Santa Barbara, and a junior research fellow at ...
Cached Biology News:High-speed video and artificial flowers shed light on mysteries of hummingbird-pollinated flowers 2Seals gamble with their pups' futures 2Seals gamble with their pups' futures 3UCSB anthropologist studies reciprocity among chimpanzees and bonobos 2UCSB anthropologist studies reciprocity among chimpanzees and bonobos 3
(Date:1/22/2015)... 2015 Dr. Greg Leyer of UAS Labs ... Natural Supplements Pre-Conference seminar on probiotics in San Diego, CA. ... continuing education conference for health care professionals. This year’s pre-conference ... of probiotics in health. Dr. Leyer spoke about the emerging ...
(Date:1/22/2015)... , Nueva Jersey , 22 de enero ... for Biomedical Research abre hoy su llamada a nominaciones ... cuya investigación científica ha hecho, o tiene el potencial ... salud humana. Las nominaciones se aceptarán hasta el 15 ...
(Date:1/22/2015)... 2015  Derma Sciences, Inc. (Nasdaq: DSCI ... wound care, announces that AMNIOEXCEL® and AMNIOMATRIX®, amniotic ... to the Premier, Inc. Regenerative Skin Grafting contract ... AMNIOEXCEL® and AMNIOMATRIX® product lines, which continue to ...
(Date:12/24/2014)... Dec. 24, 2014  Vermillion, Inc. (Nasdaq:   VRML), ... announced today that the Company closed its previously ... Management, Jack W. Schuler , Birchview Fund ... $10.5 million, before offering expenses.  The proceeds will ...
Breaking Biology Technology:El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 2El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 3El Dr. Paul Janssen Award for Biomedical Research emite su llamada a los nominados para 2015 4Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 2Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 3Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 4Derma Sciences Expands Access of its AMNIOTIC TISSUE Product Line with New Premier, Inc. Agreement 5Vermillion Announces Closing of Equity Financing 2Vermillion Announces Closing of Equity Financing 3
... , ... Fla., Nov. 25 For many businesses, 2009 has been a painful year. Not ... specializing exclusively in medically supervised bioidentical hormones has grown the number ... - from 21 to 36 physicians - and is in progress to add ...
... , ... new market research report is available in its catalogue: ... 2013 , http://www.reportlinker.com/p0165503/Brazil-Bioethanol-Market-Analysis-and-Forecasts-to-2013.html , Brazil Bioethanol ... , The report provides detailed analysis and forecasts ...
... , HOUSTON, Nov. 24 IES (Nasdaq: IESC ), ... services for the commercial, industrial and residential markets, announced today ... from Manhattan Torcon JV to install the electrical systems for ... U.S. Army Medical Research Institute of Infectious Diseases (USAMRIID) at ...
Cached Biology Technology:Nation's Largest Network of Doctors Specializing in Bioidentical Hormones Grows at an Exponential Rate 2Nation's Largest Network of Doctors Specializing in Bioidentical Hormones Grows at an Exponential Rate 3Nation's Largest Network of Doctors Specializing in Bioidentical Hormones Grows at an Exponential Rate 4Reportlinker Adds Brazil Bioethanol Market Analysis and Forecasts to 2013 2Reportlinker Adds Brazil Bioethanol Market Analysis and Forecasts to 2013 3Reportlinker Adds Brazil Bioethanol Market Analysis and Forecasts to 2013 4Reportlinker Adds Brazil Bioethanol Market Analysis and Forecasts to 2013 5Reportlinker Adds Brazil Bioethanol Market Analysis and Forecasts to 2013 6Reportlinker Adds Brazil Bioethanol Market Analysis and Forecasts to 2013 7Reportlinker Adds Brazil Bioethanol Market Analysis and Forecasts to 2013 8Reportlinker Adds Brazil Bioethanol Market Analysis and Forecasts to 2013 9Reportlinker Adds Brazil Bioethanol Market Analysis and Forecasts to 2013 10Integrated Electrical Services Awarded Contract to Provide Electrical Systems for U.S. Army Medical Research Institute of Infectious Diseases 2
A substrate for all AChE-based EIA kits....
The Synergy HT utilizes a unique dual-optics design combined with monochromator wavelength selection to provide uncompromised performance in absorbance, fluorescence and luminescence reading modes. ...
... These are just some the things youll ... of Protein-Protein Interactions, edited by Erica Golemis, One ... skillfully edited compilation of topics in protein interaction ... text that must be a part of your ...
... Persistent Analysis Environment 2) Dot plot, ... 3) Software Compensation 4) Cell Cycle ... Platform 7) Intelligent batch generation of graphs ... 9) Single drag-and-drop operations to perform complex ...
Biology Products: