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Nuclei in Medical News

Extreme makeover: Stanford scientists explore new way to change cell's identity

... called heterokaryons. In heterokaryons, the nuclei of each cell type remains distinct, and the ... cell type. They found that if the muscle cell nuclei outnumbered the skin cell nuclei, the skin nuclei began to express muscle-specific genes within a ...

Better MRI scans of cancers made possible by TU Delft

... It is ultimately the behaviour of the hydrogen nuclei in the water molecules that makes MRI possible ... lanthanide chelate on the neighbouring hydrogen nuclei (the so-called water exchange) and the more hydrogen nuclei affected, the better the MRI signal obtained. ...

Youngest patient worldwide to have auditory implant in the brain stem

... (outer, middle and inner ear) with the cochlear nuclei located in the brain stem, one of the centres of ... consists of directly stimulating the cochlear nuclei and the operation involves implanting electrodes ... a plate of electrodes into the cochlear nuclei of the child. In order to place these electrodes ...

How red blood cells nuke their nuclei

... reptiles, and birds, have red cells that contain nuclei that are inactive. Losing the nucleus enables the ... Rac 1 and Rac 2 were involved in disposing the nuclei of red blood cells, says Peng Ji, lead author and ... divided four or five times before losing their nuclei and becoming immature red blood cells. The ...

Argonne's Blue Gene/P to host large cadre of INCITE researchers

... and reaction properties of light- and medium-mass nuclei into the iron region from the complex two- and ... process by which a mature star creates carbon-12 nuclei from helium-4 nuclei and the structure of ...

New insight into factors that drive muscle-building stem cells

... made up of individual myofibers, each with many nuclei containing genetic material. As muscles are made ... to maintain an equilibrium between the number of nuclei and the fibers overall volume. Because mature myofibers are incapable of cell division, new nuclei must be supplied by satellite cells (muscle stem ...

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Nuclei in Medical Technology

Study Reports Successful Cloning of Human Embryo Using Adult DNA

... was Andrew J. French, Ph.D., of Stemagen Corp., a private company headquartered in La Jolla, Calif. In the experiments, the researchers removed the nuclei of mature oocytes from healthy young women who had previously donated eggs for successful infertility treatments. The SCNT technique was then used ...

DNA Therapeutics Reports a Novel Mechanism of Action and a Biomarker of its Lead Molecule Dbait That Open an Innovative Pathway-Targeting in Molecular Cancer Therapy

... the H2AX, an isoform of the histone H2A, after exposure to ionizing radiation. The appearance of the phosphorylated H2AX, called gamma-H2AX, in cell nuclei is an indicator of DSB repair foci. Our data provides evidence that Dbait specifically activates DNA-PK but not ATM kinase activity, as the ...
Nuclei in Medical Products

Akahoshi Prechop (temporal approach)

Description:... Straight shafts, cross action. Round handle. Divides nucleus for phacoemulsification. Nuclear division is attained without grooving. nuclei of any hardness can be pre-chopped with pre-chop forceps and nucleus sustainer. Phaco of pre-chopped nuclear fragments is rapid. Risk of rupturing ...
Company:Duckworth & Kent Ltd.

The Phaco System

Features:... entirely of the ultimate surgical metal, this U/S hand piece will not corrode, the most advanced high-power ultrasonic available can emulsify all nuclei from the softest to the very hardest densities, advanced irrigation and aspiration, built-in vitrectomy and cautery, this phaco system is compact ...
Company:Ebe Medical Products Co., Ltd.
Nuclei in Medical Dictionary

Chromosome

... heart , spine, legs, arms, or other organ s. Down's syndrome , which occurs when a baby has one extra chromosome (one of the structures in the nuclei of all cells that hold and transmit genetic information), is the most common identified genetic cause. located the gene for familial ALS ...

Dorsal

... s to the dorsal horn of the spinal cord, across the cord via the anterior commissure, and ascending along the spinothalamic tract to the laminar nuclei of the contra lateral thalamus. Bladder insufficiency: Spinal ( Dorsal ) Douche . This is a hand -held hosing of water to the dorsal (upper ...

Eye movements

... often result from weakness of the extra ocular muscle s, which control eye movements . The disease affects the part of the brain above the nuclei (“supranuclear”), which are pea-sized structures in the part of the nervous system that controls eye movements . Dreams occur during ...

Gamma

... Gamma ray: High-energy electromagnetic radiation emitted by certain radionuclides when their nuclei transition from a higher to a lower energy state. Gamma rays have high energy and a short wave length. Alternate Names : Gamma globulin ...

Genes

... Minerals ) (Oral) Genetect Plus ( Multi vitamins With Minerals ) (Oral) ... Genes are segments of DNA, the long molecules that reside in the nuclei of your body's cells. The genes , through complex processes, cause chemical activities that lead to growth and maintenance of the body. Genes ...

Olfactory

... of one or more of the twelve cranial nerve s. With the exception of the optic and olfactory nerve s, this includes disorders of the brain stem nuclei from which the cranial nerve s originate or terminate. help people examine what they do now and what they might do differently. The following 5 ...

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Nuclei in Biological News

UCSD researchers make first direct observations of biological particles in high-altitude ice clouds

... between residues of water droplets and ice nuclei in real-time. Ice nuclei are rarer than droplet nuclei and are more likely to create precipitation. ...

Stanford scientists turn adult skin cells into muscle and vice versa

... muscle cells together, producing cells that had nuclei from human skin cells and mouse muscle cells. By ... cell wall, the human skin cells and mouse muscle nuclei could now "talk" to one another via chemical ... looked at the genes expressed from the human skin nuclei and mouse muscle nuclei. (This was possible ...

When every photon counts

... mammals. With this unique arrangement, the rod nuclei of nocturnal mammals act as micro-lenses that ... Computer simulations show that stacks of such nuclei effectively guide the light to the ... mammals the chromatin arrangement in the rod nuclei is inverted: Here the heterochromatin is lumped ...

Lamin A/C deficiency is 'unnerving'

... hundreds of nuclei. In normal fibers, several nuclei cluster together under the cell membrane at sites of neuronal contact. These postsynaptic nuclei synthesize the components of the neuromuscular ... cause Emery-Dreifuss disease) failed to position nuclei into these postsynaptic clusters. This prevented ...

Dancing atoms now understood

... of subatomic particles called "spin". The nuclei of many atoms, most notably hydrogen, spin like ... For MRI, it is the interaction of the nuclei with the magnetic field that is key, as magnetic ... measurements, scientists often need to invert the nuclei so they are aligned against the magnetic field. ...

New discovery may enhance MRI scans, lead to portable MRI machines

... Bathed in the magnetic field, atomic nuclei within water and other molecules throughout cells ... process done in MRI scans that realigns the nuclei so they are against the magnetic field. When all is said and done, inverting the nuclei of people inside MRI scanners can reveal such ...

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Nuclei in Biological Technology

Berkeley scientists bring MRI/NMR to microreactors

... made possible by a property found in the atomic nuclei of almost all molecules called spin, which gives rise to a magnetic moment, meaning the nuclei act as if they were bar magnets with a north and ... an MRI/NMR signal depends upon an excess of nuclei in a sample with spins pointing in one direction ...

Scientists determine the structure of highly efficient light-harvesting molecules in green bacteria

... exposed to a magnetic field -- to look deep inside the chlorosome. This technique enables researchers to understand the relationships between atomic nuclei in a sample and, ultimately, to acquire structural information about the molecules of interest. "The NMR data revealed to us that the individual ...

Animal Eggs Not Suitable Substitutes to Produce Stem Cells

... that focuses on understanding developmental plasticity and defining the molecular mechanisms that regulate differentiation or dedifferentiation of nuclei and cells. Tables of contents and a free sample issue may be viewed online at www.liebertpub.com/clo Mary Ann Liebert, Inc. , is a privately ...

Spallation Neutron Source sends first neutrons to 'Big Bang' beam line

... the universe," Greene said. "Another set of extremely precise studies at the FNPB will address the interaction between neutrons and simple nuclei and may help to explain universal 'parity' violation," Greene said. "Roughly speaking, parity is the symmetry that implies that the laws of physics ...

NIST/NIH micromagnets show promise as colorful 'smart tags' for magnetic resonance imaging

... properties than conventional injectable MRI contrast agents. MRI contrast agents enhance images by altering the magnetic field seen by hydrogen nuclei in water. Conventional contrast agents are chemically synthesized whereas the new micromagnets are microfabricated. This allows for greater control ...

Young's experiment in a hydrogen molecule

... properties. The authors of this current research, which appears in the latest issue of the journal Science, uses electrons instead of light and the nuclei of the hydrogen molecule as emitting slits. CSIC researcher Ricardo Dez, Vicedirector of the Centre for Materials Physics (a mixed body of the ...

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Nuclei in Biological Products

Mouse Anti-CDX-2 Monoclonal Antibody, Unconjugated, Clone CDX2-88 from BioGenex

Description:... maintenance of the phenotype. Clone CDX2-88 reacts with a conserved epitope of the 40kD CDX2 protein localized in the nucleus. It exclusively marks nuclei of colonic epithelial cells and colorectal cancers on formalin-fixed, paraffin-embedded tissue sections. Therefore clone CDX2-88 may be used in ...
Company:BioGenex

Artisan™ Masson's Trichrome Stain Kit from Dako

Description:... in collagenous tissue. With the Artisan™ Masson's Trichrome stain, muscle is stained red, collagen - blue, fibrin - pink, erythrocyte - red and nuclei - blue/black. Applications: Histological stains Additional Information: EU regulatory status: CE US regulatory status: IVD ...
Company:Dako

Qproteome Nuclear Subfractionation Kit from QIAGEN

Description:... For separation and fractionation of nucleic-acid binding proteins Efficient separation of nuclei from cytosolic proteins A huge reduction in sample complexity, greatly facilitating study of low-abundance nuclear proteins Subfractionation of ...
Company:QIAGEN
Nuclei in Biological Definition

Morphogenesis

... nuclear divisions without cell division. The many nuclei that are produced distribute themselves around ... of the cell cytoplasm. Gene expression in these nuclei is regulated by the Bicoid, Hunchback, and Caudal ... embryo. These intracellular morphogens enter the nuclei and act as transcription factors to control ...

Morphogenesis

... nuclear divisions without cell division. The many nuclei that are produced distribute themselves around ... of the cell cytoplasm. Gene expression in these nuclei is regulated by the Bicoid, Hunchback, and Caudal ... embryo. These intracellular morphogens enter the nuclei and act as transcription factors to control ...

Magnetic resonance imaging

... the relaxation properties of excited hydrogen nuclei in water. When the object to be imaged is placed ... magnetic field , the spins of the atomic nuclei within the tissue are all aligned in one of two ... causing some of the magnetically aligned hydrogen nuclei to assume a temporary non-aligned high-energy ...

Brain

... be found on the surface of cerebral cortex, as well as in clusters called nuclei deep within the brain. White matter refers to axons and their ... aided by feedback loops in the cerebellum and the basal ganglia . nuclei in the brainstem control many involuntary muscle functions such as ...

Eukaryote

... , in which the genetic material is organized into membrane - bound nuclei . They include the animals , plants , and fungi , which are mostly ... are unicellular. In contrast, other organisms such as bacteria lack nuclei and other complex cell structures, and are called prokaryotes . The ...

Fungus

... ball-shaped cells, which form a mating bridge. The result is that nuclei move from one mycelium into the other, forming a heterokaryon (meaning ... nuclei). This is called plasmogamy . Actual fusion to form diploid nuclei is called karyogamy , and may not occur until sporangia are formed. In ...

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Nuclei in Biological Dictionary

Pollen grain

... ... Each pollen grain contains two sperm nuclei and one tube nucleus. ... ... pollen , ... ... Each pollen grain contains two sperm nuclei and one ... Each microspore develops by ... grow a tube ... grain with the egg and polar nuclei is to get pollen ger ... A hard coat ...

Polar nuclei

... ... sperm combines with the two polar nuclei of the large central cell of ... The remaining two nuclei , called polar nuclei , share the cytoplasm of the large ... ... ...

Nucleoli

... manufacture the subunits ... Mammalian nuclei usually contain between 1-4 nucleoli . ... ... used to measure morphometric characteristics of nuclei and nucleoli of hepatocytes from pejerrey ... cell type, nucleoli , nuclear contours, ... nuclei and prominent nucleoli and usually were more ......

Megagametophyte

... . Potentilla nivea. ... megaspore nuclei (arrows) enter the megagametophyte tubes as ... megagametophyte . ... The fusion of two sperm nuclei with megagametophyte nuclei is called double fertilization. ... ...

Heterokaryon

... A medical example is a heterokaryon composed of nuclei from Hurler syndrome and Hunter syndrome. Both ... A medical example is a heterokaryon composed of nuclei from Hurler syndrome and ... Online Medical ... ... Heterokaryon : A cell with two separate nuclei formed by the experimental fusion ... What Is ...

Diploid nuclei

... to ... include the production of diploid nuclei in a heterokaryotic, haploid mycelium ... Haploidization (not meiosis) of some diploid nuclei (Fig. 4) ... This is also a rare event, occurring in diploid nuclei , once, in 500 mitoses. ... A nucleus is ...

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