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Prion Tail Poisons Brain Cells
August 1, 2024 12:11 pm | CommentsFor decades, there has been no answer to the question of why the altered prion protein- the infectious pathogen that causes Mad Cow Disease and Creutzfeldt-Jakob disease- is poisonous to brain cells. Now, neuropathologists have shown that it is the flexible tail of the prion protein that triggers cell death.
Marijuana Linked to Adolescent Brain Abnormalities
July 25, 2024 10:19 am | CommentsRegular marijuana use in adolescence, but not adulthood, may permanently impair brain function and cognition, and may increase the risk of developing serious psychiatric disorders such as schizophrenia, according to a recent preclinical study. Researchers hope that the study will help to shed light on the potential long-term effects of marijuana use.
Bacteria Use Social Networks to Survive
July 22, 2024 11:07 am | CommentsThe next time your Facebook stream is filled with cat videos, think about Myxococcus xanthus. The single-cell soil bacterium also uses a social network. Using several imaging techniques, scientists saw for the first time that M. xanthus cells are connected by a network of chain-like membranes.The scientists believe M. xanthus uses its network to quietly transfer proteins and other molecules from one to another.
Nerves Play Key Role in Prostate Cancer
July 12, 2024 10:08 am | CommentsResearchers have found that nerves play a critical role in both the development and spread of prostate tumors. Their findings, using both a mouse model and human prostate tissue, may lead to new ways to predict the aggressiveness of prostate cancer and to novel therapies for preventing and treating the disease.
Potential Cancer Diagnosis Biomarker Identified
July 9, 2024 10:29 am | CommentsMicronuclei, erratic, small extra nuclei, which contain fragments, or whole chromosomes that were not incorporated into daughter cells after cell division, are associated with specific forms of cancer and are predictive of poorer prognosis. In a new study, a team of scientists found that disrupted micronuclei might play an even more active role in carcinogenesis than previously thought.
Human Cells Caught Making Hydrogen Sulfide
June 19, 2024 9:55 am | CommentsA new study confirms directly what scientists previously knew only indirectly: The poisonous “rotten egg” gas hydrogen sulfide is generated by our body’s growing cells. Hydrogen sulfide, or H2S, is normally toxic, but in small amounts it plays a role in cardiovascular health.
BST Update
February 12, 2024 2:05 pm | CommentsIn this video, Tim Studt, Editorial Direct for Advantage Business Media's Science Group, presents results from the 2012 Global R & D Funding Forecast and discusses what these results mean for the life sciences.
Necrosis VS apoptosis
August 29, 2024 9:53 pm | by deusjs | CommentsDescription of cellular necrosis, like apoptosis, very well explained.
Mitosis
August 29, 2024 9:53 pm | by ndsuvirtualcell | CommentsNDSU VCell Production's animation "Mitosis". For more information please see http://vcell.ndsu.edu/animations. Mitosis is the process by which the chromosomes in the nucleus of a cell are divided into into two new nuclei. This animation illustrates how the stages of mitosis progress and...
The Human Embryo and Embyronic Stem Cell Biology
August 29, 2024 9:53 pm | by uctelevision | CommentsOn December 15, 2010, Renee Reijo Pera spoke to the CIRM Governing Board about her research studies of the human embryo and embryonic stem cells. Using time lapse video of the embryo's initial cell divisions, Pera's lab identified parameters that can accurately predict human embryo...
Live cell imaging analysis of the epigenetic regulation of the human endothelial cell migration...
August 29, 2024 9:52 pm | by labonachipvideos | CommentsVideo related to research article appearing in Lab on a Chip. C. Zheng et al., "Live cell imaging analysis of the epigenetic regulation of the human endothelial cell migration at single-cell resolution". Read the article at http://xlink.rsc.org/?doi=10.1039/C2LC40192D
FRET - Fluorescence Resonance Energy Transfer - Dr Othon Gervasio - 3D Scientific Animation
August 29, 2024 9:52 pm | by leogervasio | CommentsThis animation shows how FRET occurs, based on cells transfected with plasmids encoding fluorescent tagged proteins. CFP and YFP were used as donor and acceptor respectively.
How to make a laser microscope
August 29, 2024 9:52 pm | by powerm1985 | CommentsTo make up for my lack of microscope in my last vid I show you how to kinda make one your own. Music http://www.youtube.com/watch?v=8y_R4hGrFdk&feature;=channel_video_title Subscribe for SCIENCE! Website: http://www.mylespower.co.uk Twitter:...
Epigenetics
August 29, 2024 9:52 pm | by scishow | CommentsHank & his clone Circus Hank explain the power of epigenetics, which studies the factors that determine how much or whether some genes are expressed in your body.
malaria lifecycle
August 29, 2024 9:52 pm | by gopiraviteja | Commentsmalaria life cycle in man and mosquito....
