Էջ 1 սկսած 76 արդյունքներ
The in vivo carcinogenic risk of hyperthermia, alone or in combination with irradiation, and the anti-carcinogenic potential of vitamin A and N-acetylcysteine (AcCys) were investigated. Starting 1 month before treatment, 160 rats were divided into four diet groups: no additives, vitamin A-enriched
The effects of different factors (temperature, light, enzymic activation) on the ability of selected mutagens and carcinogens to induce hereditary bleaching of Euglena gracilis were investigated. In the resting medium, the elevation of incubation temperature from 25 degrees C to 37 degrees C
The effect of hyperthermia on radiation-induced early- and late-appearing foot reactions was studied in C3Hf/Sed mice derived from our defined flora mouse colony. The animal foot was irradiated with 137Cs gamma-rays under hypoxic, air, or hyperbaric oxygen (O2 30 psi) conditions. Hyperthermia of
The action of hyperthermia treatments on tumor promotion separated into a two-stage protocol has been investigated. 7,12-Dimethylbenz[a]anthracene (DMBA) initiated dorsal skin of female SENCAR mice was promoted with either H2O2 or 12-O-tetradecanoylphorbol-13-acetate (TPA) (4 applications, 2
Ten groups of mice were exposed to either a single (30 Gy) or multiple (six fractions of 6 Gy) X-ray doses to the leg. Eight of these groups had the irradiated leg made hyperthermic for 45 min immediately following the X irradiation to temperatures of 37 to 43 degrees C. Eight control groups had
Hyperthermia (37 degrees C permanently) and heat shock (42 degrees C for 10 min, and then 27 degrees C) retarded the elimination of chloroplasts from the flagellate Euglena gracilis induced by quinolone antibacterial chemotherapeutics (OA, NA, Cnx, Ofx, Cpfx, Enx, Nfx) in comparison with their
BACKGROUND
In a previous analysis of 12 cancers in the Cancer Prevention Study II (CPS-II) cohort including follow-up from 1982-2000, having both hay fever and asthma was associated with lower colorectal cancer mortality. The combination of these allergic conditions may be a marker for
The purpose of this paper is to assess the evidence for and against the premise that hyperthermia is carcinogenic. The paper is one of several published in this issue of the International Journal of Hyperthermia on the subject of the health risks of hyperthermia. The motivation for this issue of the
The purpose of this study was to examine effects of repeated whole-body hyperthermia on the growth of carcinogen-induced rat mammary carcinomas. Female Sprague-Dawley rats were treated intragastrically with a single dose (100 mg/kg) of the carcinogen 7,12-dimethylbenzanthracene (DMBA) at 2 months of
The incidence of tumours in the irradiated cervical region in female Wistar (WU) rats after retreatment of part of the volume with hyperthermia was examined retrospectively. The cervical spinal cord (cervical 5-thoracic 2) was irradiated with a single dose of 15, 18 or 20 Gy. Ninety days thereafter,
Pentachloroanisole is a chlorinated aromatic compound which is widely distributed at low levels in the environment and in food products. Formation of pentachloroanisole in the environment may result from the degradation of structurally related, commercially important, ubiquitous chlorinated aromatic
Findings from various epidemiological studies suggest that acute inflammation and fever may decrease the risk of developing certain types of cancer. In an established tumor situation acute inflammation and fever resulted in tumor regression in some cases, however, treatment was sometimes ineffective
A single hyperthermia treatment given near the time of initiation with N-methyl-N'-nitro-N-nitrosoguanidine (MNNG) or 7,12-dimethylbenz[a]anthracene (DMBA) increased the number of initiated cells in the skin of SENCAR mice subjected to a two-stage tumorigenesis protocol. In animals subsequently
African swine fever (ASF) is a re-expanding devastating viral disease currently threatening the pig industry worldwide. MicroRNAs are a class of 17-25 nucleotide non- coding RNAs that have been shown to have critical functions in a wide variety of biological processes, such as cell differentiation,