His+ reversions Caused in Salmonella typhimurium by different types of ionizing radiation [PDF]
, 1988 The yield of his+ reversions in the Ames Salmonella tester strain TA2638 has been determined for 60Co γ rays, 140 kV X rays, 5.4 keV characteristic X rays, 2.2 MeV protons, 3.1 MeV α particles, and 18 MeV/U Fe ions.
Fitzek, M. +3 more
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Listeria monocytogenes intragastric and intraperitoneal approximate 50% lethal doses for mice are comparable, but death occurs earlier by intragastric feeding [PDF]
Infection and Immunity, 1990 The intraperitoneal (i.p.) and intragastric (i.g.) mouse approximate 50% lethal dose values (ALD50S) were determined for 15 food and clinical isolates of Listeria monocytogenes. Although all strains gave i.g. ALD50S comparable to or less than their i.p. ALD50S, the i.g.
L, Pine, G B, Malcolm, B D, Plikaytis
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Combined immunosuppressive therapy with low dose FK506 and antimetabolites in rat allogeneic heart transplantation [PDF]
, 1994 Following rat heterotopic heart allotransplantation, low to lethal doses of the antimetabolites mizoribine (MIZ), RS-61443 (RS), and AZA were given alone or in combination with subtherapeutic doses of FK506 (0.04 mg/kg/day) for 14 days after ...
Fujisaki, S +6 more
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Prediction of Human Lethal Doses and Concentrations of MEIC Chemicals from Rodent LD50 Values: An Attempt to Make Some Reparation [PDF]
Alternatives to Laboratory Animals, 2021 The prediction of human toxicities from animal toxicity tests is often poor, and is now discouraged and in some cases banned, especially those involving the LD50 test. However, there is a vast number of historical LD50 data in both public and in-house repositories that are being put to little use.
John C, Dearden, Mark, Hewitt
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Radiosensitivity of Two Local Chili Varieties to Gamma Rays
Jurnal Teknik Pertanian Lampung, 2023 Genetic variation is needed for developing new superior varieties in plant breeding. Genetic variation of chili plants could be increased by inducing mutation with gamma rays irradiation.
Makhziah Makhziah +1 more
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Revista da Sociedade Brasileira de Medicina Tropical, 2007 Apresenta-se o primeiro relato de raiva em morcego da espécie Nyctinomops laticaudatus, na Cidade do Rio de Janeiro, RJ. Foram realizados isolamento e titulação viral em diferentes tecidos, encontrando-se altos títulos no cérebro e glândulas salivares. A
Marlon Vicente da Silva +4 more
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Lethal Dose of Calcium Bentonite in Wistar Rats
Althea Medical Journal, 2021 Background: Calcium bentonite is a type of clay produced by a devitrification of volcanic ash which is often used as a traditional medicine to absorb toxins and waste products of metabolism.
Dwika Audiyananda +2 more
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The acute lethal dose 50 (LD50) of caffeine in albino rats
Regulatory Toxicology and Pharmacology, 2016 An acute LD50 is a statistically derived amount of a substance that can be expected to cause death in 50% of the animals when given by a specified route as a single dose and the animals observed for a specified time period. Although conducting routine acute toxicity testing in rodents has been criticized, it can serve useful functions and also have ...
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Airborne Infection with Bacillus anthracis—from Mills to Mail
Emerging Infectious Diseases, 2004 The lack of identified exposures in 2 of the 11 cases of bioterrorism-related inhalation anthrax in 2001 raised uncertainty about the infectious dose and transmission of Bacillus anthracis. We used the Wells-Riley mathematical model of airborne infection
Kevin P. Fennelly +4 more
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Lymphatic involution and early mortality in the young chicken produced by 2.2 GeV protons [PDF]
, 1972 Young single-comb white Leghorn cockerels were subjected to single acute doses of either 2.2 GeV protons or 250 kVp X-rays. Since young chickens exposed in the lethal range die within 48 hours of exposure, an hourly tabulation of deaths was recorded for ...
Montour, J. L., Shellabarger, C. J.
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