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Pigment in Medical News

Pitt, Berkeley researchers reconstruct seashells to model nervous system function

... continue the pattern. At the same time, the new pigment and shell growth are influenced by external ... network that determines how much calcium and pigment the mollusk secretes. Different rates of calcium ... shape of the shell, while different amounts of pigment result in a pattern unique to each species. ...

Zebrafish Journal Publishes Skin Pigmentation Studies That Shed Light on the Evolution of Race

... look at future directions of research on pigment biology. Model organisms such as zebrafish ... Discussion entitled, "Research Implications of pigment Biology in Zebrafish," by Cheng, Parichy, and ... behind regeneration and stem cell biology using pigment patterning as a major readout of organogenesis. ...

Big Lottery to fund scientific research

... result is ochronosis; the formation of a black pigment which binds to bone, cartilage, and skin. The ... Professor Jim Gallagher, said: "The black pigment that leaks into the bloodstream and attaches ... of illness. What is interesting is that the pigment only attaches itself to certain areas of ...

Novel approach strips staph of virulence

... of Child Health and Human Development. A pigment similar to the one that gives carrots their color ... aureus (staph) golden. In the bacterium, this pigment acts as an antioxidant to block the reactive ... Researchers had speculated that blocking pigment formation in staph could restore the immune ...

Developing gene therapy to fight blindness

... involves a receptor protein called MERTK that is expressed in the retinal pigment epithelium, the pigmented cell layer just outside the retina that closely ... of this defect, debris accumulates between the photoreceptors and retinal pigment epithelium, resulting in death of photoreceptors and loss of vision. ...

Expression of infrared fluorescence engineered in mammals

... in infrared and work in mouse models. A phytochrome is a photoreceptor a pigment that plants and bacteria use to detect light which is sensitive to light ... well in mammalian cells and spontaneously incorporate biliverdin, a green pigment that is present in humans and other mammals," said Tsien. Biliverdin is ...

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Pigment in Medical Technology

AlphaVax Announces Promising Results in Melanoma Studies

... more serious than other skin cancers if not detected and treated early. Melanoma is a form of cancer that begins in melanocytes (cells that make the pigment melanin). Current treatment of later-staged melanoma includes surgical removal of the tumor tissue, followed by chemotherapy and/or radiation ....

Paloma Pharmaceuticals Presents at the Association for Research in Vision and Ophthalmology 2009 Meeting

... detachment, however, are proliferative vitreoretinopathy (PVR) and subretinal fibrosis (scarring). When the retina becomes separated from the retinal pigment epithelium (RPE) because a tear or hole occurs in the retina, many cell types undergo proliferation and consequently have the potential to form ...

Sirion Therapeutics Announces Clinical Data Presentations at the 2009 Association for Research in Vision and Ophthalmology (ARVO) Annual Meeting

... Wednesday May 6, 8:30-10:15 am Posterboard Number: A444 - Program Number: 4188 Characterization of Fluorophores in the Diseased Retinal pigment Epithelium Session Date/Start Time: Wednesday May 6, 8:30-10:15 am Posterboard Number: A427 - Program Number: 4171 Anti-Angiogenic ...

FDA Files Application To Convert ONTAK(R) (Denileukin Diftitox) to Full Approval for Use in Cutaneous T-Cell Lymphoma (CTCL)

... the syndrome (see PRECAUTIONS, Laboratory Tests). Visual Loss Loss of visual acuity, usually with loss of color vision, with or without retinal pigment mottling has been reported following administration of ONTAK. Recovery was reported in some of the affected patients; however, most patients reported ...

Newly Published Study Shows OPKO's siRNA Bevasiranib Is Taken Up by Target Tissues in the Eye

... In two tissue distribution and pharmacokinetic studies in rabbits, results showed that bevasiranib was present in the retina and in targeted retinal pigment epithelium (RPE) cells following intravitreal injection. Bevasiranib is a gene-silencing agent designed to shut down the production of vascular ...

Preventing Prostate Cancer and BPH: Prostate-Health Expert Available (National Men's Health Week Is June 9-15)

... men have a 50 percent higher risk of developing symptomatic BPH than white men. -- The excitement about lycopene (the pigment that puts the red in tomatoes) and prostate-cancer prevention is probably a mistake, Kristal says. Most large and well-designed human ...
Pigment in Medical Products

TCA /Alpha Combo Peels

Description:... and TCA to deliver immediate-even-visible results. Tricloracetic acid (TCA) has been used for many years to treat facial wrinkles, age spots, pigment abnormalities, mask of pregnancy and other superficial skin problems. The TCA peel causes sloughing or removal of the upper layers of skin. ...
Company:Derma Diagnostics LLC

Microdiathermy System - 1100

Description:... as well as many years of clinical experience, has established this frequency as the optimum choice for the placement of discrete burns on the pigment epithelium. These localized burns produce the maximum effect at the target tissue with the least possible damage to adjacent tissue such as the ...
Company:Dutch Ophthalmic, USA

Sahlgrens

Description:... test for detecting and grading acquired color deficiency. Requires only two minutes for quantitative estimation of saturation thresholds for bluish pigment colors. Highly sensitive to and specific for differences between normal and acquired vision defects. Combined with Ishiharas pseudo-isochromatic ...
Company:Richmond Products, Inc.
Pigment in Medical Dictionary

Albinism

... present at birth , characterized by a lack of pigment that normally gives color to the skin , hair , ... of albinism exist, all of which involve lack of pigment in varying degrees. Albinism of just the ... skin cancer s ... Albinism , a genetic pigment deficiency that results in milky skin , white ...

Bilirubin

... BILIRUBIN - A pigment that is largely derived from the breakdown of ... excretes it in the stool . BILIRUBIN : A red pigment in liver bile , blood , and urine . ... bilirubin from the blood . bilirubin A pigment produced in the liver by the breakdown of ...

Jaundice

... the mucous membrane s, or the eyes . The yellow pigment is from bilirubin , a byproduct of old red ... Jaundice is caused by the build-up of a natural pigment called bilirubin , which the body usually ... and whites of the newborn's eyes ( sclera e) by pigment of bile ( bilirubin ). In newborn babies a ...

Melanin

... > Melanin Melanin Alternate Names : Skin pigment ... Melanin is a natural pigment that gives your skin its color. It's produced ... including race and hormonal changes. Melanin pigment made in the hair , skin and eyes . Nystagmus ...

Skin

... isn't clear. Skin color is determined by a pigment ( melanin ) made by specialized cells in the ... protects itself from sun damage by concentrating pigment in the cells on the surface of the skin . This build-up of pigment is called a "tan," and it helps block the ...

Skin color

... of the skin can be caused by variations in pigment ( melanin ) density, blood vessel ( vascular ) ... but in up to 20% of people with AIDS . Dark pigment ( melanin ) produced by melanocytes is one of the ... or darken skin color . Melanin is the pigment that gives skin color and that helps to protect ...

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Pigment in Biological News

Purple sweet potato means increased amount of anti-cancer components

... of human nutrition at K-State, to understand the pigment effects of a Kansas-bred purple sweet potato on ... have high contents of anthocyanin, which is a pigment that presents the purple color in the vegetable. The pigment can produce red, blue and purple colors depending ...

MIT: Jeremy Nathans to deliver Scolnick Prize lecture

... the genes for the three color-sensitive pigment proteins in the human retina. He showed that ... of color blindness, and that the red and green pigment genes are on the X-chromosome, which is why ... basis of color vision, the discovery of these pigment proteins and the related protein rhodopsin was ...

Mollusks taste memories to build shells

... shape of the spiral, while different amounts of pigment secretion create a pattern unique to each ... network that determines how much calcium and pigment is secreted. Based solely on these nine ... created by asymmetric "traveling waves" of pigment or calcium deposition. The basic concept ...

American Chemical Society's weekly PressPac -- March 11, 2009

... RELEASE First discovery of "animals-only" pigment bilirubin in plants Journal of the American ... bilirubin. Until now, scientists thought that pigment existed only in animals. The finding may change ... from the liver's breakdown of hemoglobin, the red pigment that carries oxygen in the blood. Parents know ...

Advance offers revolution in food safety testing

... characteristics of certain "chromatophore" or pigment bearing cells, called erythrophores, from Siamese ... the erythrophores change appearance, and the pigment moves in a characteristic pattern to an internal part of the cell. The change in pigment location in response to a toxic chemical is ...

Vitiligo skin disorder could yield clues in fight against melanoma

... the immune system goes into overdrive and kills pigment cells, which give skin its color. Loyola ... the immune system so that it stops attacking pigment cells. Conversely, melanoma would be treated by revving up the immune system to attack malignant pigment cells. "Things we learn from vitiligo could ...

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Pigment in Biological Technology

New approach may render disease-causing staph harmless

... bodys immune cells to prevail against the infection. A golden-colored pigment called a carotenoid gives the S. aureus bacterium its edge. Aureus is ... how these drug candidates bound to the bacterial enzyme to shut off pigment production, Wang said. The new findings are particularly promising ...

First step to converting solar energy using 'artificial leaf'

... nano scale They are the subject of dreams: artificial forests at nano scale. Or pavements and motorways where gaps in the surface are filled with pigment molecules that collect sunlight and convert it into fuel and other forms of clean energy. But before this can happen, artificial photosynthesis ...

Assessment of safety and efficacy of human embryonic stem cell therapy

... Inc. (OTC:ACTC.PK) and its collaborators at OHSU reported today the long-term safety and efficacy of human embryonic stem cell (hESC)-derived retinal pigment epithelium (RPE) produced under manufacturing conditions suitable for human clinical trials. Two important early potential hESC applications are the ...

Researchers discover method for mass production of nanomaterial graphene

... uncover new and exciting possibilities. Graphene is created when graphite the mother form of all graphitic carbon, which is used to make the pigment that allows pencils to write on paper is reduced down to a one-atom-thick sheet. Graphene is among the strongest materials known and has an ...

Spectrum Blue Steel's fresh foreign investment at 18 Billion and the Biosphere process spark attention on a global scale

... extremely high-quality carbon black. Carbon black is important filler in the rubber industry and next to titanium dioxide; it is the most important pigment in printing inks, toners, single-ply roofing, paints, and plastics. Electricity The Biosphere System produces 5 megawatts of electricity an hour ...

Northwestern chemist investigates lost reds in Homer painting

... .) Van Duyne says that conservation scientists are unlocking the secrets of dye and pigment analysis, and that in the future such analysis will help conservators determine forgery, authenticity, exact provenance and best restoration methods. ...
Pigment in Biological Products

Autofluorescence Eliminator Reagent from CHEMICON

Description:... With increasing age, the autofluorescent pigment lipofuscin accumulates in the cytoplasm of many cell types, including neurons. The presence of lipofuscin granules can complicate the use of ...
Company:CHEMICON

Mouse Anti-Rhodopsin Monoclonal Antibody, Unconjugated, Clone RET-P1 from GeneTex

Description:... Mouse monoclonal [RET-P1] to Rhodopsin Rhodopsin is a glycoprotein which is a visual pigment in mammals, birds, amphibians, and reptiles. The rhodopsin protein is present on the photoreceptor cells in the retina. Immunogen: Membrane ...
Company:GeneTex
Pigment in Biological Definition

Albinism

... the body from making the usual amounts of a pigment called melanin . There are many genes which ... People with albinism lack this protective pigment in their skin, and can burn easily from exposure ... be out-weighed by the trauma. The lack of pigment in the eye generally leads to ocular photophobia ...

Pigment

... In biology , pigment is any material resulting in color in plant or ... multilayer structures. Unlike structural color, pigment color is the same for all viewing angles. Nearly ... structural color, although many of them contain pigment as well. Creatures that have deficient ...

Halobacteria

... and organic material are available. Large blooms appear reddish, from the pigment bacteriorhodopsin . This pigment is used to absorb light, which provides energy to create ATP . The ...

Light-dependent reaction

... chlorophyll molecule contained within a photosystem (cluster of associated pigment molecules) and excites one of its electrons, which is then captured by a ... In cyclic electron flow, the electron originates in a pigment complex called photosystem I, passes from the primary acceptor to ...

Neuron

... which are assembled into larger neurofibrils . Some neurons also contain pigment granules, such as neuromelanin (a brownish-black pigment, byproduct of synthesis of catecholamines) and lipofuscin (yellowish-brown pigment that accumulates with age). Neurons of the brain The nematode worm ...

Light-dependent reaction

... chlorophyll molecule contained within a photosystem (cluster of associated pigment molecules) and excites one of its electrons, which is then captured by a ... In cyclic electron flow, the electron originates in a pigment complex called photosystem I, passes from the primary acceptor to ...

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Pigment in Biological Dictionary

Rhodopsin

... Rhodopsin , also known as visual purple, is a pigment of the retina that is responsible for both the ... belong to the ... rhodopsin n. The pigment sensitive to red light in the retinal rods of ... are expected to carry over to ... The visual pigment rhodopsin was originally extracted from bovine ...

Pigment

... A pigment is the material that changes the color of light ... other forms of luminescence, in ... pigment color differs from structural color in that it ... the same for all ... Chlorophyll is the primary pigment in plants; it is a porphyrin that absorbs ... ...

Malpighi layer

... different ... Malpighi found that the black pigment was caused by a layer of mucus just beneath ... different ... Malpighi found that the black pigment was caused by a layer of mucus just beneath ... different ... Malpighi found that the black pigment was caused by a layer of mucus just beneath ...

Chlorophyll

... Chlorophyll is a green pigment found in most plants, algae, and cyanobacteria. ... of. ... Chlorophyll , the natural plant pigment that lends its color to grass, leaves, ... ... ... Chlorophyll is a green photosynthetic pigment found in plants, algae, and cyanobacteria. ...

Albinism

... by a partial or total lack of melanin pigment in the eyes, skin and hair, or more rarely in ... People with albinism have little or no pigment in their eyes, skin, ... Albinism affects ... here. Some kids are born without enough pigment to protect their skin and eyes. ... ...

Halobacteria

... ... In the case of the halobacteria living in Owens Lake, the red pigment may ... Information about halobacteria in the free online English ...... might once have been dominated by microbes that used a ... The retinal pigment in halobacteria absorbs green light and reflects red and blue light. ......

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