Behavioural experiments in mice are often carried out during the resting phase of these nocturnal animals. Ignoring the fact that mice are more active during the dark period, results from resting-phase testing has also been used to characterize these animals. Since the influence of the light/dark cycle on testing is likely to be a relevant factor for the analysis of behavioural results, the aim...

The effects of interleukin-2 (IL-2) on various models of experimental epilepsy were studied after intracerebroventricular administration in DBA/2 mice, a strain genetically susceptible to sound-induced seizures. Convulsions were induced by physical stimulus (sound of 109 dB. 12-16 kHz) or by chemical compounds (bicuculline, cephazolin or kainate). The present study demonstrated that human recom...

A media consisting of isatin-Schiff bases and its inclusion complexes with β-cyclodextrine was developed to maximize the production of antibiotics Hexaene H-85 and azalomycine B by Streptomyces hygroscopicus CH-7. The media with β-cyclodextrine inclusion complex of isatin-3-thiosemicarbazone resulted in the maximum antibiotics concentration of 493 μg/cm for Hexaene H-85 and 191 μg/cm for azalom...

Proliferation and erythroid differentiation of transplanted DBA/2 marrow cells and Friend virus-induced leukemic cells were assessed in syngeneic, allogeneic (H-2 compatible), and (BALB/c x DBA/2)F(1) hybrid mice (CDF(1)). Measurements were made 5 days after transplantation of donor cells into nonirradiated or X-irradiated mice by the spleen colony or the (125)IUdR-(59)Fe uptake methods. Growth...

BACKGROUND Epidemiologic studies have demonstrated that occupational noise exposure is associated with hypertension, but the related mechanism in vascular structural changes is unclear. OBJECTIVE This panel study aimed to investigate effects of occupational noise exposure on ambulatory vascular structural properties in male workers. METHODS We recruited 20 volunteers and divided them into a...

Speech perception runs smoothly and automatically when there is silence in the background, but when the speech signal is degraded by background noise or by reverberation, effortful cognitive processing is needed to compensate for the signal distortion. Previous research has typically investigated the effects of signal-to-noise ratio (SNR) and reverberation time in isolation, whilst few have loo...

Differences in the chemical composition of calcified skeletal structures (e.g. shells, otoliths) have proven useful for reconstructing the environmental history of many marine species. However, the extent to which ambient environmental conditions can be inferred from the elemental signatures within the vertebrae of elasmobranchs (sharks, skates, rays) has not been evaluated. To assess the relat...

After the i.p. inoculation of IO3, IO4, or IO5 leukemia L1210 cells, the survival of DBA/2Ha-DD mice was longer than that of DBA/2J or DBA/2Cr mice. This difference was greatly reduced in mice that received total body X-radiation (250 R) the day prior to cell inoculation and in nonirradiated mice after the inoculation of IO6 or IO7 LI210 cells. DBA/2Ha-DD, DBA/2J, and DBA/2Cr mice survived long...

After the i.p. inoculation of IO3, IO4, or IO5 leukemia L1210 cells, the survival of DBA/2Ha-DD mice was longer than that of DBA/2J or DBA/2Cr mice. This difference was greatly reduced in mice that received total body X-radiation (250 R) the day prior to cell inoculation and in nonirradiated mice after the inoculation of IO6 or IO7 LI210 cells. DBA/2Ha-DD, DBA/2J, and DBA/2Cr mice survived long...

Noise pollution is one of the common physical harmful factors in many work environments. The current study aimed to assess personal and environmental sound pressure level project sound-Isosonic map Razavi Khorasan Paste manufacture using Surfer V.14 at V.5.0. This cross-sectional, descriptive analytical that was conducted 2018 factory contains Canister, production Brewing unit. Following ISO 96...