Tag: "tissues" at biology news
Scientists, Using Flies, Trace Genetic Links To Cancer
...enes we examined, the tumors invaded the same host tissues
with the samefrequency and the tumors grew at the same speed. Essentially, we found thatthree different genes were using the same pathway. It was remarkable." One property in particular makes the fly an excellent source for the study ofcancer, Shearn...
Technology Reduces Reliance On Fungicides For Grape Growers
...aces,it sinks its "teeth" into the succulent plant tissues
providing itself with foodto grow and reproduce," says Douglas Gubler, plant pathologist at the Universityof California and a member of the American Phytopathological Society (APS). "Theresult is reduced plant growth, and poor quality fruit." Finding...
Adult Cells Undergo Identity Switch Reported In Science
...tly proposed that using stem cells to grow healthy tissues
wasone of several beneficial applications for their new-found ability to grow humanstem cells from early-stage embryos, a finding announced in Science lastNovember. Embryonic stem cells are primordial cells that divide indefinitely andgive rise to ...
Encouraging Results In Preclinical Studies Of Parkinson's Disease Gene Therapy
...erapeutic genes areintroduced into target cells or tissues
to induce a therapeutic effect and are acritical component of any successful gene therapy. The AAV gene delivery systemis one of four vector systems under development at Cell Genesys. Cell Genesysholds a broad U.S. patent covering all gene therapy ...
UNC-CH Ligament-Tendon Structure Discovery May Lead To Better Treatment, Scientists Explain
..., because collagenfibrils make up dense connective tissues
in the body such as ligaments andtendons. One day,... Although the research was conducted on rat tissues
it likely will applyto humans as well since humans and other mammals have far more similarities inti...
Search For Iron Transport Mechanism Leads To "Hephaestus," God Of Metal Working,Who Insight Into Iron-Deficiency Anemia
...l iron export has remained obscure. Moreover, some tissues
involvedin iron transport, including the intestine, do not express ceruloplasmin,thereby leaving open the question of what mechanism contributes to blockedtransport of iron from the intestine to the gut. "We've discovered a homologue to ceruloplasmin...
Researchers Identify Molecular Site That Is Key To HIV's Ability To Infect Cells Of Brain, Colon
...es aimedat preventing the virus's entry into these tissues
and perhaps others, as well.The scientists present... system cells, some of which are not. While these tissues
are not the principle target of HIV infection, studies indicate that, when infected, cells in these ...
UD Valentine Science: Cell "Dating" Habits May Promise Healthier Hearts
...al understanding ofhow individual cells in complex tissues
communicate," says Daniel D. Carson,chairperson of UD's Department of Biological Sciences. "His studies haveimportant implications for embryonic development as well as diseaseprogression."...
Researchers Isolate Gene For Heart And Facial Defects
...cts seemunrelated to one another, all the affected tissues
share a common embryologicorigin, suggesting that a single gene may be important for both heart and facialformation. The researchers discovered a candidate gene in mice. They then establishedthat only one instead of the two usual copies of the g...
A Versatile Signal In Vertebrate Embryogenesis: Wnt-4 Regulates Kidney Development, Sex Organ Differentiation, Neuronal Survival And Axonal Guidance
...acterised bythe interaction of different cells and tissues
to assure the concerted programof cell growth, differentiation and morphogenesis which garanties the functionalarchitecture of the adult organ. Cell and tissue interactions are mediated bysignalling molecules of various protein classes. The mammalian...
Millennium Clones Diet-Induced Obesity Gene
...lled mahogany (mg), produces aprotein (MG) in many tissues
of the body, its activity in a specific region ofthe brain's hypothalamus is particularly interesting because of that region'srole in body weight regulation. "The cloning of the mahogany gene and the identification of its protein productare major fi...
New Gene May Help Scientists Understand More About How the Body Grows
...ppears to play a pivotal role in inducingprecursor tissues
that will eventually form muscle, these studies could beuseful to complement the efforts by scientists worldwide to regenerate muscle inwasting diseases," says Dr. Hazel Sive, Associate Member of the WhiteheadInstitute. The derrière gene is...
Statement Of The DFG Concerning "Questions Of Human Embryonic Stem Cells"
...lso render themselves suitable for producing human tissues
ororgans in the laboratory, for testing drugs on h...eings. Preparation of pluripotent stem cells from tissues
of prematurely aborted deadfoetuses or aborted foetuses can be carried out legitimately in Germany. ...
Flatworms Are Oldest Living Ancestors To Those Of Us With Right And Left Sides, Reported In The 19 March Issue Of Science
...dial animals are also "diploblastic,"meaning their tissues
develop from two primary layers of embryonic cells. Incontrast, tissues
of the more complex "triploblasts" develop from three primarylayers of embryonic cells. Because info...
USGS Finds That Mysterious Arkansas Bald Eagle Disease Has Spread To Ducks In Eastern States
...toxicology tests, USGS pathologists havetested the tissues
of dead birds for bacteria, viruses, and parasites and nonehave been found. In humans and other mammals, similar lesions have beenassociated with genetic disorders, certain types of chemicals or toxic plants. Tests for these chemicals in the affect...
New Gene May Play Important Role In Regulating HDL, The 'Good' Cholesterol
...e liver and is responsible for returning fats from tissues
inthe body to the liver for reprocessing or elimination. Dramatically lowered HDLlevels could, therefore, lead to a health crisis in time. Scientists have known that at least 50 percent of the variation in HDLcholesterol levels in the body depends on...
Osiris Therapeutics Reports Key Findings in SCIENCE Verifying Existence of Adult Stem Cells
... cell therapeutic products for the regeneration of tissues
damaged through injury, aging or degenerative dise...ation and induce its differentiation into specific tissues
following expansion, even when we start from a single cell." Dr. Pittenger adds, "These cells are fa...
Vion Demonstrates Readiness Of First Tumor-Targeting Salmonella For Human Testing Against Solid Tumors
...s at levels of at least 500:1 compared with normal tissues
and to suppress tumor growth by more than 90%. Mor...d is rapidly cleared from the blood and from other tissues
over extended periods of time. A further report at AACR by Vion scientists showed VNP20009's ability...
University Of Pittsburgh Cancer Institute Team Is The First To Uncover Role Of Faulty DNA Repair In Breast Cancer
...they studied theactivity of NER enzymes in various tissues
from these women. "We found that NER activity is s...otides. For its studies, the team looked at breast tissues
from 30 early-stage breastcancer patients and 12 controls. In 85 percent of the patients, theinvest...
Functional Arteries Grown From Cells Using Novel System That Simulates Fetal Environment
...ed demonstrates that we canbegin to grow cells and tissues
in a more physiological way outside the body."This very innovative approach to tissue engineering will set the stage forfuture advances," he added. "Dr. Niklason and others are bringing the field tothe point where we will be able to solve more compl...
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