piątek, 24 listopada 2017
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! EN_01202638_0001 SCI
Fen-phen. Herbal Fen-phen tablets. Fen-Phen is a non-prescription weight loss supplement. This drug is a mixture of Pondimin (fenfluramine), Redux (dexfenfluramine), and phentermine to suppress appetite. The amphetamine-like attributes of Fen-phen have been known to lead to heart valve damage, neuropsychological damage, and pulmonary cardiovascular damage.
! EN_01202638_0002 SCI
Vicodin, Hydrocodone 7.5mg with acetaminophen 750mg, combines a narcotic analgesic (pain killer) and cough reliever (antitussive) with a non-narcotic analgesic (Acetaminophen) for the relief of moderate to moderately sever pain and relief of coughing. Caution: habit forming narcotic.
! EN_01202638_0003 SCI
^BPaxil antidepressant tablet.^b This tablet contains ten milligrams of the drug ^Iparoxetine^i ^Ihydrochloride^i. This is prescribed to treat anxiety, depression and obsessive-compulsive disorder (OCD). Paroxetine is a member of a class of drugs called selective serotonin reuptake inhibitors (SSRIs). These prolong the action of the brain chemical serotonin, which is important in regulating moods.
! EN_01202638_0004 SCI
Vioxx (rofecoxib) is an NSAID of the Cox-2 inhibitor family and is used to treat arthritis and pain. Vioxx was withdrawn from the market worldwide by its manufacturer, Merck, when lengthier FDA tests revealed its association with a significantly greater risk of heart attack and stroke.
! EN_01202638_0005 SCI
Avandamet diabetes drug tablets. This drug, which contains the active ingredients rosiglitazone and metformin, is used to treat type II diabetes. It controls blood sugar levels by reducing the production and secretion of glucose by the liver and increasing the body's sensitivity to insulin, the hormone that regulates blood glucose levels. Avandamet requires that some insulin is produced by the pancreas and so cannot be used to treat type I diabetes. Rosiglitazone has been linked to an increased risk of heart attacks and heart failure.
! EN_01163426_0002 SCI
Single positron emission computed tomography (SPECT) brain scans in axial section showing a normal brain (at left) and the brain of a patient with mitochondrial encephalopathy (MELAS, at right). The MELAS brain has an absence of striatum on two sides of the brain (upper part). MELAS (or Lactic Acidosis) is a form of dementia caused by mutations in the genetic material in mitochondria of the cells. Brain dysfunction includes seizures, stroke-like episodes and abnormal thinking (dementia). Intravenous injection of Tc-99m-ECD.
! EN_01151355_0045 SCI
Antibody response. Computer artwork of antibody, or immunoglobulin, molecules attacking a cell. The y-shaped molecules have two arms that can bind to specific antigens, for instance viral or bacterial proteins. In doing this they mark the antigen for destruction by phagocytes, white blood cells that ingest and destroy foreign bodies. Antibodies can also kill some pathogens directly and can neutralise toxins.
EN_00962661_2421 VAL
Heart
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EN_00962661_3871 VAL
heart injection
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EN_00962661_3872 VAL
heart injection
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EN_00962661_7146 VAL
lung bacteria
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EN_00962667_0382 VAL
food pyramid set
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EN_00958165_5695 PHO
Illustration of a man and a pie chart with a missing piece representing Alzheimer's Disease.
EN_00958165_5696 PHO
Conceptual image of petri dish with E-coli bacteria and a map of Africa, Europe and Asia, illustrating the spread of disease.
EN_00958165_5697 PHO
Conceptual image of petri dish with E-coli bacteria and a map of Asia and Australia, illustrating the spread of disease.
EN_00958165_5698 PHO
Conceptual image of petri dish with E-coli bacteria and a map of North and South America, illustrating the spread of disease.
EN_00958165_6015 PHO
Metal lungs with cigarette smoke.
EN_00957889_0705 PHO
In an achievement some see as the "holy grail" of nanoscience, an interdisciplinary research team at the U.S. Department of Energy's Brookhaven National Laboratory have for the first time used DNA to guide the creation of three-dimensional, ordered, crystalline structures of nanoparticles (particles with dimensions measured in billionths of a meter). The ability to engineer such 3-D structures is essential to producing functional materials that take advantage of the unique properties that may exist at the nanoscale - for example, enhanced magnetism, improved catalytic activity, or new optical properties. As with the group's previous work, the new assembly method relies on the attractive forces between complementary strands of DNA - the molecule made of pairing bases known by the letters A, T, G, and C that carries the genetic code of living things. First, the scientists attach to nanoparticles hair-like extensions of DNA with specific "recognition sequences" of complementary bases. Then they mix the DNA-covered particles in solution. When the recognition sequences find one another in solution, they bind together to link the nanoparticles. This first binding is necessary, but not sufficient, to produce the organized structures the scientists are seeking. To achieve ordered crystals, the scientists alter the properties of DNA and borrow some techniques known for traditional crystals. Importantly, they heat the samples of DNA-linked particles and then cool them back to room temperature, which allows the nanoparticles to unbind and reorganize for greater stabiltiy. The team also experimented with different degrees of DNA flexibility, recognition sequences, and DNA designs in order to find a "sweet spot" of interactions where a stable, crystalline form would appear.Results from a variety of analysis techniques, including small angle x-ray scattering at the National Synchrotron Light Source and dynamic light scattering and different types of optical spectroscopies and ele
EN_00957730_3128 PHO
Illustration of a pediatrician with a child patient.
EN_00957730_3142 PHO
Cross-section of a coronary artery showing plaque build-up and narrowing. Erythrocytes are squeezing forward and the heart is visible behind the artery.

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