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Primitive in Medical News

Sense of Adventure Rests in Primitive Brain Region

But dopamine reward system may also play role in less desirable addictions, expert says WEDNESDAY, June 25 (HealthDay News) -- Your sense of adventure comes from a primitive area of the brain called the ventral striatum, British researchers say. Scientists from the Wellcome Trust C...

Genes Associated With Limb Development is More Primitive Than Believed

A new study by a University of Chicago researcher has revealed that fish possessed the genes associated with helping to grow hands and feet (autopods) much before animals with limbs (tetrapods) came onto the scene about 365 million years ago. Lead author of the study in the Nature, Dr Marc...

PET can help guide treatment decisions for a common pediatric cancer

...ases, imaging with MIBG alone may not reveal some malignant lesions in the body. Neuroblastomaa form of cancer that starts in certain types of very primitive developing nerve cells found in an embryo or fetusoccurs most frequently in infants and young children. There are about 650 new cases of the cancer re...

Six Researchers to Receive Prestigious Awards from the American Society of Hematology

...d-breaking techniques of using the long-term culture system as means of understanding the proliferative and renewal properties of normal and malignant primitive human hematopoietic stem cells. Louis M. Staudt, M.D., Ph.D. , of the National Cancer Institute's Center for Cancer Research in Bethesda, M...

Stem Cells' "Suspended" State Preserved by Key Step, Scientists Report

... used to simulate normal cell specialization, the scientists detected no differentiation of cardiac muscle, and also no formation of a tissue known as primitive endoderm, which is essential for the embryo to survive and develop. Chd1 also was shown by the research team to be necessary for the reprogrammin...

Humans Weren't Always 'So Special,' Expert Says

...k millions of years to evolve THURSDAY, June 25 (HealthDay News) -- A 54-million-year-old skull has yielded the first detailed images of a primitive primate brain. The 1.5-inch-long skull was from an animal species called Ignacius graybullianus , part of a group of primates known as plesiadapif...

Structures from the human immune system's oldest branch shed light on a range of diseases

...ork of proteins that "complement" the work of antibodies in destroying foreign invaders. They serve as a rapid defense mechanism in most species, from primitive sponges to humans. When complement proteins are triggered into action by a microbe, the proteins ultimately form a complex enzyme called C3 convertase...

Study Refutes Depression Gene Finding

...rol the different biologic pathways in the brain but, more importantly, how that brain is wired to respond to environmental factors. We're at the very primitive stages of knowledge." According to the authors of the current paper, published in the June 17 issue of the Journal of the American Medical Associa...

Discovery in amber reveals ancient biology of termites

...e, and the termite would starve if it didn't have the protozoa to aid in digestion. In this case they depend on each other for survival." Even more primitive termites may have fed on a range of things they could digest themselves, Poinar said, but eventually they acquired protozoa that dramatically increase...

Stem Cell Breakthrough May Lead to MS Treatments

...led the findings "absolutely critical" to moving toward clinical applications for MS, whether directly by injection of mature oligodendrocytes or more primitive precursor cells, because it both enables researchers to grow large quantities of these cells and to molecularly define the process by which that happe...
Primitive in Medical Technology

Correction to Earlier Release From Jewish Hospital and University of Louisville

...injected a pure population of stem cells, the c-kit-positive cells. The other institution injected cardiosphere-derived cells, which are a mixture of primitive and partially differentiated cells, complicating the recognition of the actual therapeutic cell. Our study involves a specific, well-characterized pop...

A Functional Immune System Can Be Derived From Embryonic Stem Cells, Preliminary Study Finds

... the official journal of the American Society of Hematology. Embryonic stem cells (ESCs) are being intensely investigated as a renewable source of primitive cells theoretically able to regenerate all tissues and organs. The use of ESC-derived blood-forming cells may have an important advantage over traditi...

Roche Announces Positive Results in Solid Tumors Using Human Monoclonal Antibody Against IGF-1R (R1507)

... in this important disease area." About Ewing's Sarcoma The Ewing's family of tumors (EFT) includes primary tumors of bone (classic Ewing's sarcoma, primitive neuroectodermal tumor, and Askin tumor) and extraosseous primary tumors {National Cancer Institute}. Studies using immunohistochemical markers, cytoge...
Primitive in Medical Dictionary

Pbc

...ries: Disambiguation pages ... Let us go into the house of the Lord." Psalm 122:1 ... This webpage was created to give info about this church. And primitive Baptists in general. ... PBC is large enough to deliver the full range of collections services. And small enough to care. ... collections and le...

Neuroblastoma

... is a cancer of the sympathetic nervous system, a nerve network ... Neuroblastoma is a form of cancer that starts in certain types of very primitive ... This is important, because neuroblastoma cells often release certain hormones ... Neuroblastoma is a form of cancer that occurs in infan...

Lichen

...iagnosis and treatment. ... of doctor treats lichen sclerosus? ... Brief and Straightforward Guide: What is Lichen ? ... Lichen is a kind of primitive plant species that's nothing more than strands of ... What is lichen ? ... Petula is one form of lichen and it is an unusual type. ... The most...

Infantile reflexes

... primitive reflexes are reflex actions originating in the central nervous system t...ence of a reflex past the age ... Infantile reflexes , also known as primitive reflexes , help an infant thrive ... to learn how to know when to see a ...

Germ

...lignant (benign, non ... Germ cells are the cells that develop in the embryo (fetus, or unborn baby) and ... A germ cell tumor arises from primitive developing cells that form in the embryo ... In the brain, germ cell tumors are most commonly found in the pineal and ... Germ cells are the...

Carcinoid tumor

...r often is coincidental with surgery performed ... Overview: Origin and general involvement and presentationCarcinoid tumors are derived from primitive stem cells in the gut wall but can be seen in other organs,1 ... Carcinoid tumors — Comprehensive overview covers symptoms, diagnosi...
Primitive in Biological News

How did chemical constituents essential to life arise on primitive Earth?

Experiments show that simple molecules can combine chemically rather than biologically to form the building blocks of DNA, the key component of all life forms. These processes might have taken place on primitive earth, but how they occur is an unsolved puzzle. Chemists at the University of Geor...

Using nature's most primitive anti-viral defense system to find new approaches to cancer research

The humble fruit fly and a grant from the AICR ?the Association for International Cancer Research - are helping a leading scientist in London identify potential targets for drugs that block the spread of cancer. In one of the first studies of its kind, Dr Buzz Baum of the UCL Branch of the globa...

U-M scientists discover identifying markers for primitive blood-forming stem cells

Scientists at the University of Michigan Medical School have discovered the biological equivalent of a grocery store bar code on the surface of primitive, blood-forming stem cells in mice. Called hematopoietic stem cells, they give rise to all the different types of specialized cells found in blood...

Carnegie donates landmark clones to biology

...n the presence of ammonium. The researchers were totally surprised that the mechanism in which three subunits regulate each other was found in the primitive archaebacteria. It means that it evolved billions of years ago. The fact that the C-terminus is found in all other bacteria, fungi, and plants demonst...

Landmark project to map genomics of complex ant systems

... bacteria and fungi associated with the gardens of these ants. She selected two highly sophisticated ant species for sequencing, and one ancient, more primitive species. Entering new territory Roche will sequence the DNA using its proprietary high-throughput genome sequencing technology, which will prov...

Our 'caveman logic' embraces ESP over evolution

...ghing matter. In CAVEMAN LOGIC: THE PERSISTENCE OF primitive THINKING IN A MODERN WORLD (Prometheus Books, $19....ce. Davis says CAVEMAN LOGIC: THE PERSISTENCE OF primitive THINKING IN A MODERN WORLD is the product of more ...era brain circuitry." He asserts that much of this primitive thinking is supported by modern social institution...

Explosive growth of life on Earth fueled by early greening of planet

...ion. It was a massive greening of the planet by non-vascular plants, or primitive ground huggers, as Knauth calls them. This period, roughly 700 million year...altering catastrophes, they began to see a world that first greened up with primitive plants. "The greening of Earth made soils which sequestered carbon and ...

Beaked, bird-like dinosaur tells story of finger evolution

...raditional interpretation that they were the first, second and third. Limusaurus is the first ceratosaur known from East Asia and one of the most primitive members of the group. Ceratosaurs are a diverse group of theropods that often bear crests or horns on their heads, and many have unusual, knobby finge...

University of Leicester geologists demonstrate extent of ancient ice age

...eological time (part of the Early Palaeozoic Era), an interval that witnessed a major diversification of early marine animals including trilobites and primitive fish as well as the emergence of the first land plants. The Early Palaeozoic climate had long been considered characterised by essentially greenho...

Work of Field Museum scientist addresses question of chance in evolution

...ilostome bryozoans, marine animal colonies whose bodies are made up of many genetically identical box-like individuals (zooids). In the simplest, most primitive cheilostomes, the soft feeding organ is squeezed out of the box by muscles pulling on a flexible membrane. The next step in diversification was calcif...
Primitive in Biological Technology

Stem cells' 'suspended' state preserved by key step, scientists report

... used to simulate normal cell specialization, the scientists detected no differentiation of cardiac muscle, and also no formation of a tissue known as primitive endoderm, which is essential for the embryo to survive and develop. Chd1 also was shown by the research team to be necessary for the reprogramming...

USC researchers derive first embryonic stem cells from rats

...and colleagues found that stem cells from rats, which have previously failed to propagate at all, could be grown indefinitely in the laboratory in the primitive embryonic state. An accompanying study led by researchers at the University of Cambridge, U.K., reported similar findings, independently verifying...

Genetic clock makers at UC San Diego publish their 'timepiece' in Nature

...o know what the essential modules are, but based on our synthetic clock, it looks as though circadian clocks could have easily started as some kind of primitive negative feedback loop, with the positive loop coming later to regularize it," said Hasty. Wild Oscillations More and more studies are being ...

Cryo-Cell International and EndGenitor Technologies Announce Research Collaboration

...linical development by EndGenitor for cardiovascular and other therapeutic applications. MenSCs, which were discovered and developed by Cryo-Cell, are primitive mesenchymal progenitor cells found in menstrual blood and are easily retrievable without invasive techniques. "We think the project has significant ...

Principle of Recursive Genome Function Supersedes Dogmas; By Andras Pellionisz, Online Ahead of Print; (Scientific Visionary Vindicated)

...A builds nucleic acids up into structural protein). In the course of constructing the Y-shaped template, the primary gene is turned on. Thus, the most primitive part of the process retains Watson's simplified scheme. The principle does not contradict the 'DNA makes RNA makes proteins' picture, b...

Stem Cell Researcher Wins Award for Excellence for Work With the ImageStream(R) System

...Zuba-Surma. "Over the past two years, I have been working with Dr. Mariusz Z. Ratajczak at the University of Louisville on the characterization of the primitive Very Small Embryonic-Like (VSEL) stem cells isolated from murine and human adult organs and specimens. The ImageStream system has become one of the mo...

Method to deliver molecules within embryonic stem cells improves differentiation

... gene expression studies to determine cell phenotype. The results revealed enhanced expression of fibroblast growth factor 5 (FGF-5) a marker for primitive ectoderm in the embryoid bodies mixed with retinoic acid-loaded microspheres compared to the other treatment groups after 10 days. The researchers al...

Robot Psychologist: A New Era in Mental Health Services With MindMentor

...t? Hollander, interviewed by a Dutch radio program, explained: "We did some research into the effectiveness of this system in 2006. We had a much more primitive version then, and with that we performed a test-run with 1600 clients from all over the world. Our data show that MindMentor was able to solve the pro...

Phase I Results Announced for R1507 From Genmab's Collaboration With Roche

...an antibody therapeutic approach. About Ewing's Sarcoma The Ewing's family of tumors (EFT) includes primary tumors of bone (classic Ewing's sarcoma, primitive neuroectodermal tumor, and Askin tumor) and extraosseous primary tumors. The estimated incidence of Ewing's sarcoma in the US is approximately 300 new...

Organizations finding ways to overcome barriers to electronic health records implementation

...as just no way an information-intensive profession could not pick up the tools eventually. The ability to remember or know all the facts, even on very primitive levels, can just be overwhelming." He's now seeing the healthcare world move in that direction. But paper will remain, especially among smaller ...
Primitive in Biological Definition

Animal

...less certain. Platyzoa The Platyzoa include the phylum Platyhelminthes , the flatworms. These were originally considered some of the most primitive Bilateria, but it now appears they developed from more complex ancestors. A number of parasites are included in this group, such as the flukes and ...

Brain

...kull . Vertebrates are characterized by increasing complexity in the cerebral cortex as one moves up the phylogenetic and evolutionary tree . primitive vertebrates, like fish, reptiles, and amphibians have cortices with less than six layers of neurons, a structure known as allocortex (Martin, 1996). ...

Cryptozoology

...be summarily dismissed in the same way. There are several animals cited as examples for continuing cryptozoological efforts: The coelacanth , a primitive fish , a " living fossil " believed to have been extinct for 65 million years, was caught in a fishing net in 1938 off the coast of Africa . ...

Fungus

...s on the inside; some soil-dwelling fungi actually trap roundworms and other small animals. Most chytrids, which are generally considered the most primitive group of fungi, do not form hyphae and instead grow directly from spores into multinucleate sporangia . A few other fungi have reverted from a myce...

Glucose

...ccharide such as fructose , is so widely used. Glucose can form from formaldehyde under abiotic conditions, so it may well have been available to primitive biochemical systems. Probably more important to advanced life is the low tendency of glucose, by comparison to other hexose sugars, to nonspecifical...

Animal

...less certain. Platyzoa The Platyzoa include the phylum Platyhelminthes , the flatworms. These were originally considered some of the most primitive Bilateria, but it now appears they developed from more complex ancestors. A number of parasites are included in this group, such as the flukes and ...

Nervous system

...elminthes possess a network of nerves that operates like a more conventional nervous system, but lack a brain. Annelid worms and tunicates have a primitive brain called a ganglionic mass, which is a bundle of several nerves. Based in part on commonalities in embryonic development among all chordates ...

Origin of life

...nd Shaw (1973) commented: "If there ever was a primitive soup, then we would expect to find at least somewh...of a "naked-gene" and postulate the emergence of a primitive metabolism which could provide an environment for ...ward in 1924 with Alexander Oparin 's notion of primitive self-replicating vesicles which predated the dis...

Paleontology

...looking at the fossils contained in a rock remains one of the fastest and most accurate means of telling how old that rock is. Fossils were known by primitive man and were sometimes identified correctly as the remains of ancient lifeforms. The organized study of paleontology dates from the late 18th century...

Plant

...hich transport water throughout the organism. In many the sporophyte acts as a separate individual, while the gametophyte remains small. The first primitive seed plants, Pteridosperms (seed ferns) and Cordaites, both groups now extinct, appeared in the late Devonian and diversified through the Carboniferou...
Primitive in Biological Dictionary

Vascular plants

...cular plants lack these particular tissues, a number of non- vascular plants possess tissues specialized for internal transport of water. c. Most primitive vascular plants are entirely made up of primary tissues ... b. The secondary vascular tissues and periderm make up the secondary plant body ...

Vacuoles

...onary ... Vacuoles are found in the cells of plants, protists, and some primitive animals. ... Vacuoles . The term means "empty space" ... Plant cells ...edia. ... Vacuoles are found in the cells of plants, protists, and some primitive ... Vacuoles are membrane-bound compartments within some eukaryotic c...

Vacuole

...cuole - Definition of Vacuole at Dictionary.com a free online dictionary with ... Vacuoles are found in the cells of plants, protists, and some primitive animals. ... ... contain one or several vacuoles , that may have different functions from each other. Vacuoles have a diverse array ... GO:00057...

Tetrapod

...ped, as did limbs ... Devonian Tetrapods ... Detailed account of early tetrapod evolution. ... Abstract of Jennifer Clack's identification of a primitive baphetid tetrapod . ... Academic Kids.com provides an online encyclopedia with thousands of free articles ... Detailed account of early tetrapod ...

Spermatogonia

...d repopulate the seminiferous ... Loss of spermatogonia and wide-spread DNA methylation defects in newborn male ... were conducted on postnatal primitive type A spermatogonia lacking DNMT3L. ... Strong mosaicisms towards expansions were already observed in spermatogonia before meiosis. ... Sperm...

Slime molds

...aced in the Protista. ... Slime molds are composed of an acellular mass of naked protoplasm with no cell ... slime mold n. Any of various primitive organisms of the phylum Acrasiomycota, especially of the genus Dictyostelium, that grow on dung and decaying Slime molds are fungus-like or...

Sinus venosus

...Day, and word games. Fate of the Sinus Venosus (Formation of the Right Atrium) Figure 1 ... Communication between the sinus venosus and the primitive atrium, the sinoatrial ... Britannica online encyclopedia article on sinus venosus (anatomy), ...of the true vertebrate. Its circulatory patter...

Proglottid

... itself away from the dog's ... Britannica online encyclopedia article on proglottid (zoology), ...the presence of two pigment spots, which are primitive eyes. In the case of the tapeworm, the ... Each proglottid contains a complete set of male and female reproductive organs ... occur between two p...

Primitive streak

... The primitive streak is a structure that forms during the early...reptilian and mammalian embryonic development. primitive streak primitive streak Surface view of embryo of a rabbit . a...

Pineal gland

...d and Cancer-An Epigenetic Approach to the Control of Malignancy: ... We believe that the pineal gland and retina both evolved from the same primitive ... Characterization of 14-3-3 proteins in the pineal gland ... ...
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