2 edition of Uranium biokinetics in gavaged young adult female rats found in the catalog.
Uranium biokinetics in gavaged young adult female rats
Philip John Keizer
Written in English
|Statement||by Philip John Keizer, Jr.|
|The Physical Object|
|Pagination||60 leaves, bound :|
|Number of Pages||60|
In this study the Depleted Uranium with different concentrations was implanted in the body of pregnant rats, the female mice were mated and pregnant, at twentieth day of pregnancy the embryo were taken outside the body of all pregnant mice the level of Uranium in liver, Cited by: Minerals containing uranium are widely distributed in the surface areas of the earth's crust. Some are of commercial value and contain various oxides of uranium, including uraninite, pitchblende, carnotite, and brannerite. Uranium is also found in phosphate rock, lignite, and monazite sands. The potential health effects of uranium in mining or in refining operations are complicated by the.
Enriched but not depleted uranium affects central nervous system in long-term exposed rat. Neurotoxicology. 26, Houpert P, Bizot JC, Bussy C, Dhieux B, Lestaevel P, Gourmelon P and Paquet F, Comparison of the effects of enriched uranium and cesium on the behaviour of rats after chronic exposure. Int J Radiat Biol. 83, Uranium Wars book. Read 23 reviews from the world's largest community for readers. Uranium, a nondescript element when found in nature, in the past centu /5.
Uranium has both radioactive and chemical hazards and risk assessments must address both types. Its environmental distribution depends on natural occurrence and has been influenced by human activities such as energy production, coal, and phosphate fertiliser exploration, which Author: Alix Ya Vasiliev. No cases have been reported where exposure to uranium is known to have caused health effects in children. Very young animals absorb more uranium than adults do when fed uranium, but we do not know if this happens in children. It is also not known whether exposure to naturally occurring uranium can affect the developing human fetus.
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The maximum GI absorption was between and percent of the dose administered. The biokinetics of female rats were congruous with data from male rats. Evaluating the absorption and kinetics of orally administered uranium is important because substantial concentrations of natural uranium are sometime found in human drinking : Philip John Keizer.
Uranium biokinetics in gavaged young adult female rats. Abstract. Graduation date: Blood, liver, kidney, femur, and ovaries were assayed\ud from female Wistar rats following oral administration of\ud uranyl nitrate.
Three uranium concentrations were\ud studied for six time periods ranging from 4 hours to \ud hours following gavage. : Neurobiology of Reproduction in the Female Rat: A 50 Year Perspective (Monographs on Endocrinology) (): Everett, Jack W.: Books # 1 Best Seller in Teen & Young Adult.
Neurobiology of Reproduction in the Female Rat: A Fifty-Year Perspective (Monographs on Endocrinology) (Monographs on Endocrinology (32)): Medicine & Health Science Books @ ed by: The past few decades have seen substantial experimental and modelling studies addressing the biokinetics of uranium in mammals.
in adult female baboons and tamarins following intravenous. The effects on postnatal development and behavior were assessed in the offspring of female rats concurrently exposed to uranium (U) and restraint stress. Adult female rats were administered uranyl acetate dihydrate (UAD) in the drinking water at doses of 0, 40 and 80 mg/(kg day) for 4 weeks before mating with untreated males, as well as during Cited by: Sixty female Wistar rats, 21 days old (so far breastfed) were separated into 8 groups with the following composition: (a) a first group with 3 animals (control group); (b) 6 groups having 8 animals each, with 5 submitted to Uranium treatment (treated animals) and 3 as control; and (c) one group having 9 animals, with 5 submitted to Uranium Cited by: In young adult female rats, whether sterile or fertile, for the first nine or ten days after mating, prolactin secreted by the pituitary maintains the corpora lutea.
The placenta of a successfully mated female then takes over (Smith ; Smith et al. If mating is unsuccessful, the corpora lutea degenerate by Day 12 or Cited by: Uranium is a natural radioactive heavy metal.
Kidneys and bones are the primary reservoirs for uranium regardless of the route of exposure and the kidney is the critical target organ for uranium toxicity.Depleted uranium is a by-product of the nuclear industry and of nuclear weapons radioactive activity is approximately 40% lower than that of naturally occurring by: This point is reached in female rats at approximately PP34 but, in males, maturity occurs much later at around PP However, the age of sexual maturity varies considerably between individuals, ranging from as young as P40 to as old as P76 in male rats.
It is also important to note that sexual maturity itself does not mark the beginning of adulthood, but rather denotes the beginning of Cited by: Books shelved as uranium: The Girls of Atomic City: The Untold Story of the Women Who Helped Win World War II by Denise Kiernan, Uranium: War, Energy and.
Page - The Chemistry of Uranium," National Nuclear Energy Series, Div VIII, Vol. 5, McGraw-Hill Book Co., New York, New York, Appears in 45 books from Reviews: 1. Ratsy leak a brightly-colored, paint-like substance from their tails. They use these to mark their territory, defacing buildings, statues, and public property in the process.
Behavior. Ratsy are timid, sneaky Pokémon that will run and hide at the first sight of an enemy. Habitat. Ratsy live in urban environments such as Venesi City. Game locations. ENVIRONMENTAL RESEA () Gastrointestinal Absorption of Metals (51Cr, 65Zn, 95mTc, 'Cd, Sn, '4'Pm, and Pu) by Rats and Swine' M.
SULLIVAN,2 B. MILLER, AND J. GOEBEL' Biology and Chemistry Department, Pacific Northwest Laboratoll', P.O. BoxRichland, Washington Received J Adult and neonatal rats and neonatal pigs were gavaged Cited by: FUNDAMENTAL AND APPLIED TOXICOL () Influence of Chronic Exposure to Uranium on Male Reproduction in Mice JUAN M.
LLOBET,* JUAN J. SIRVENTJ ARTURO ORTEGA,* AND JOSt L. DOMINGO*" *Laboratory of Toxicology and Biochemistry and tPathology Unit, School of Medicine, University of by: Uranium tissue burdens were determined at, 1, 2, 4, 8, 24, 48, 96 and h following gavage. Blood, kidney, liver and bone were analyzed for U content using neutron activation followed by delayed neutron counting.
Uranium rapidly localized in the kidneys and bone following ingestion. Bone was found to be the primary tissue of deposition. Uranium accumulation in the rat kidney reached a maximum at 1 day after the subcutaneous (s.c.) administration of 2 mg U/kg of uranium acetate and then gradually decreased.
At 3 h after administration, uranium was distributed mainly in the proximal tubules of the inner zone of the cortex and in the outer stripe of the outer medulla, and.
Uranium is a natural and commonly occurring radioactive element. It is found in very small amounts in nature in the form of minerals, but may be processed into a silver-colored metal. Rocks, soil, surface and underground water, air, and plants and animals all contain varying amounts of uranium.
Typical concentrations in most materials are a few parts per million (ppm). Unfortunately, this book can't be printed from the OpenBook. If you need to print pages from this book, we recommend downloading it as a PDF.
Visit to get more information about this book, to buy it in print, or to download it as a free PDF. Uranium for Nuclear Power: Resources, Mining and Transformation to Fuel discusses the nuclear industry and its dependence on a steady supply of competitively priced uranium as a key factor in its long-term sustainability.
A better understanding of uranium ore geology and advances in exploration and mining methods will facilitate the discovery and exploitation of new uranium deposits. 1. J Environ Radioact. ;64() The biokinetics of uranium migrating from embedded DU fragments.
Leggett RW(1), Pellmar TC. Author information: (1)Life Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TNUSA. [email protected] Military uses of depleted uranium (DU) munitions have resulted in casualties with embedded DU by: Depleted uranium (DU) is an emerging environmental pollutant that is introduced into the environment primarily by military activity.
While depleted uranium is less radioactive than natural uranium, it still retains all the chemical toxicity associated with the original by: The most frequently used mammals in scientific research are rodents, predominantly rats and mice.
There are various experimental factors which are critical to the quality of data obtained from rodent models and these factors differ according to the requirements of the experiment.
1 Previous studies have shown that reporting of animal experiments in peer-reviewed publications is poor due to Cited by: