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Positron emission tomography (PET) [1] is a functional imaging technique that uses radioactive substances known as radiotracers to visualize and measure changes in metabolic processes, and in other physiological activities including blood flow, regional chemical composition, and absorption.
pentobarbital – humane euthanasia of animals not to be used for food; pentoxyfylline – xanthine derivative used in as an antiinflammatory drug and in the prevention of endotoxemia; pergolide – dopamine receptor agonist used for the treatment of pituitary pars intermedia dysfunction in horses; phenobarbital – anti-convulsant used for ...
Many other isotopes have been used in specialized radiopharmacological studies. The most widely used is 67 Ga for gallium scans. 67 Ga is used because, like 99m Tc, it is a gamma-ray emitter and various ligands can be attached to the Ga 3+ ion, forming a coordination complex which may have selective affinity for particular sites in the human body.
X-ray diffraction computed tomography is an experimental technique that combines X-ray diffraction with the computed tomography data acquisition approach. X-ray diffraction (XRD) computed tomography (CT) was first introduced in 1987 by Harding et al. [1] using a laboratory diffractometer and a monochromatic X-ray pencil beam.
The Center for Veterinary Medicine (CVM) is a branch of the U.S. Food and Drug Administration (FDA) that regulates the manufacture and distribution of food, food additives, and drugs that will be given to animals. These include animals from which human foods are derived, as well as food additives and drugs for pets or companion animals.
In 1968, the food line was made available through veterinarians and pet professionals as Hill's Science Diet. The line continued to expand and includes more than 60 Prescription Diet brand pet foods (prescription foods for cats and dogs with specific diseases, only available through a vet or pet pharmacy) and Science Diet brand pet foods (sold ...
Hypoallergenic diets for dogs with food allergies consist of either limited ingredients, [86] novel proteins, [83] or hydrolyzed proteins. [87] Limited ingredients make it possible to identify the suspected allergens causing these allergic reactions, as well as making it easy to avoid multiple ingredients if a canine is allergic to more than ...
XRD may refer to: X-ray diffraction , used to study the structure, composition, and physical properties of materials Extensible Resource Descriptor , an XML format for discovery of metadata about a web resource