dogma

Scientists rid stem cell culture of key animal cells

...differentiated state is critical. The feeder cell dogma now can be overturned, says lead investigator Ren-He Xu, a senior scientist at WiCell, a private, nonprofit research institute. "This work completely gets rid of the need for feeder cells," says Xu. "It also significantly reduces the daily labor of p...

The very unexpected life and death of a leukemic cell

...death rates of the CLL cells. This challenges the dogma that CLL is a purely accumulative disorder where leukemic cells accumulate because they cannot die. Clearly CLL is a disease in which there is a dynamic interplay between rates of cell division and cell death. The data could enable physicians to pred...

Human Eggs Can Develop From Ovarian Surface Cells In Vitro

...m cell research, and cast doubt on the established dogma on the fetal origin of eggs in adult human ovaries. It is now well established that fetal mammalian eggs originate from somatic stem cells. More recent research of adult human ovaries has shown that oocytes and granulosa cells (the layer of small ce...

Stem cells in bone marrow replenish mouse ovaries

...g provides direct evidence to overturn a long-held dogma in reproductive biology, that female mice generate egg cells only during fetal development and thus are born with a finite stock of eggs that declines throughout life. The new report significantly extends earlier work from the same research team repo...

Mechanism for the captation of nutrients in plants- unknown to date

...aptation This discovery breaks with a fundamental dogma in basic plant science holding that all substances penetrate the interior of the cell through the participation of specific transporters present in the plasma membranes - a model implying that, if hundreds of substances enter vegetable cells and each...

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dogma at Biology Technology

Abbott vs. Thailand has implications for innovation and access

... required to achieve that vision. In our time, the dogma that innovation justifies high prices is not necessarily invalid, but we need to think anew and act anew. Previous articles by Ogan Gurel Ogan Gurel: Personalized medicine and technology convergence Of private equity, research, and drug dev...

The Why Files celebrates decade of science exploration

...t everyone can understand helps show that it isn't dogma or a simple collection of facts. "It is a very powerful way of looking at the world. It is also a very organized enterprise that involves human beings and so carries with it all of the cultural baggage of human society," he says. "The Why Files tri...

Human stem cells stand on their own

...differentiated state is critical. The feeder cell dogma now can be overturned, says lead investigator Ren-He Xu, a senior scientist at WiCell, a private, nonprofit research institute. "This work completely gets rid of the need for feeder cells," says Xu. "It also significantly reduces the daily labor of p...

Berbees success is based on companys history and culture

...93 by Jim Berbee , the company was founded on the dogma of creating an environment for success, embracing customer goals and trusting individuals judgment. This formula, according to Shain, is the reason its employees stay with the company and customers remain satisfied. We need to be in the advice bus...

dogma at Biology Definition

Retrovirus

...retrovirus refers to this reversal of the Central dogma of molecular biology . Reverse transcriptase activity outside of retroviruses has been found in almost all eukaryotes, enabling the generation and insertion of new copies of retrotransposons into the host genome. Because reverse transcription is m...

Prion

...ial, because it seemed to contradict the " central dogma of modern biology ", which asserts that all living organisms use nucleic acids to reproduce. Prusiner's idea — that a protein (which, unlike DNA , has no obvious means of replication) could reproduce itself — was initially met with skept...

Molecular biology

...anslation of the genetic material . The central dogma of molecular biology where genetic material is transcribed into RNA and then translated into protein, despite being an oversimplified picture of molecular biology, still provides a good starting point for understanding the field. This picture, howev...

Genetics

...nes code for proteins ; see the original central dogma of genetics 1944 Oswald Theodore Avery , Col... showed using RNA viruses that Watson's central dogma is not always true 1970 Restriction enzymes were discovered in studies of a bacterium, Haemoph...

Gene

...gether, these discoveries established the central dogma of molecular biology , which states that proteins ...bed from RNA which is translated from DNA. This dogma has since been shown to have exceptions, such as reverse transcription in retroviruses . See a...

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dogma at Biology Dictionary

Transcription

...rotein Taken together, they make up the " central dogma " of biology : DNA → RNA → protein . Here is an overview. Full article >>> A target nucleic acid amplification method that uses RNA transcription ( RNA polymerase ) and DNA synthesis ( reverse transcriptase ) ...

Transcriptase

...ry to given m RNA and used in cloning . central dogma The organ izing principle of molecular biology ...rovirus refers to this reversal of the Central dogma of molecular biology . Full article >>> The pol-like open reading frame is probab...

Transcript

...rotein Taken together, they make up the " central dogma " of biology : DNA → RNA → protein . Here is an overview. Full article >>> A target nucleic acid amplification method that uses RNA transcript ion ( RNA polymerase ) and DNA synthesis ( reverse transcript as...

Reverse transcriptase

...ry to given m RNA and used in cloning . central dogma The organ izing principle of molecular biology ...rovirus refers to this reversal of the Central dogma of molecular biology . Full article >>> The pol-like open reading frame is probab...

Reversal

...rovirus refers to this reversal of the Central dogma of molecular biology . Full article >>> Cells undergo immediate calcium de-regulation in the presence of glutamate if the respiratory chain is inhibited; this is due to ATP depletion following ATP synthase reversal and can be...

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dogma at Medicine News

Heart may pull Cells from Body to Self-repair

...s team concludes that "these results challenge the dogma that the heart is not able to regenerate." They added that although the percentage of regenerated cardiomyocytes is rather low, it might be possible to repair damaged heart muscle by increasing the number of cells recruited by the heart....

Tooth Decay Bacteria Unaffected By Altered Biochemical Pathway

...athway. "We were met with skepticism … because the dogma was that this biochemical pathway is the key for all living cells," commented Jeannine Brady, Ph.D., a co-author of the study and an associate professor of oral biology at the UF College of Dentistry. "As far as we know, this is the first example of ...

Researchers Find Molecular "Brake" to Cell Death

...ng says. These new findings "overturn a scientific dogma so long accepted that it has become a textbook standard when talking about apoptosis," he continues. Researchers agree that the seminal event that leads to initiation of apoptosis is the release of a key protein known as cytochrome c (CC) from a ce...

Brain Regulation Present Even In Spineless Creatures

... are altered, and their physiology is altered. The dogma is that most cells don't change their characteristics, but here's a case of nerve cells changing not only one characteristic but almost all of them." The driving force of these changes is naturally occurring steroid hormones, he said. Insects are...

Routine Oxygen Administration in Heart Attack Victims, Challenged

...earch Institute says it’s high time this ‘clinical dogma ‘ was challenged. Writing in the Journal of the ...n of a heart attack. We need to challenge clinical dogma because the routine use of oxygen in myocardial infarction is not supported by the evidence." Yet,...

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