cus aureus by heat shock. The effect has then been more thoroughly investigated by landolo and Ordal (5, 6). Since heat shock causes an increased sensitivity of fungal cells to high temperature and blue light (2-4), it seemed justified also to test the response of heat-shocked fungal cells to high concentrations of sodium chloride. Most experiments were performed with the ascomycete Ophiostoma ...

Kress, M. and S. Guenther. Role of [Ca]i in the ATP-induced heat sensitization process of rat nociceptive neurons. J. Neurophysiol. 81: 2612–2619, 1999. In inflamed tissue, nociceptors show increased sensitivity to noxious heat, which may account for heat hyperalgesia. In unmyelinated nociceptive afferents in rat skin in vitro, a drop of heat threshold and an increase in heat responses were ind...

The degree of heat sensitization induced in spores of Bacillus subtilis by irradiation with gamma rays was not changed when irradiation was carried out at low oxygen tension (1 mm of Hg) as compared with irradiation in an air atmosphere. The degree of heat sensitization appeared to be slightly greater at pH 7.0 than at pH 4.5. The substrate was found to influence the degree of induced heat sens...

Exposure of Listeria innocua to acid and starvation stress decreases sensitivity to the quaternary ammonium compound cetrimide, whereas exposure to cold and heat stress increases sensitivity to this compound. Changes in membrane lipids occur in response to certain types of stress, and these changes likely impact cell sensitivity to chemical sanitizers. The present study included an assessment o...

today laser has a lot of usage in medicine and dentistry. in the field of dentistry, laser is used in soft tissue surgery, sterilization of canals (in root canal therapy) and in restorative dentistry laser is used for cavity preparation, caries removal, sealing the grooves (in preventive dentistry), etching enamel and dentin, composite polymerization and removal of tooth sensitivity. the use of...

UNLABELLED This study tested the effects of aging and race on responses to noxious stimuli using a wide range of stimulus modalities. The participants were 53 non-Hispanic blacks and 138 non-Hispanic white adults, ages 45 to 76 years. The participants completed a single 3-hour sensory testing session where responses to thermal, mechanical, and cold stimuli were assessed. The results suggest tha...

Nisin, a bacteriocin produced by some strains of Lactococcus lactis, acts against foodborne pathogen Listeria monocytogenes. A single exposure of cells to nisin can generate nisin-resistant (Nisr) mutants, which may compromise the use of nisin in the food industry. The objective of this research was to compare the heat resistance of Nisr and wild type (WT) Listeria monocytogenes. The synergisti...

In anticipation of using single or fractionated hyperthermia treatment in ex vivo purging of leukemic bone marrow in the clinic, we have compared the hyperthermic sensitivity, kinetics of thermotolerance, and heat-shock protein synthesis in three human myelogenous leukemic cell lines. In terms of heat sensitivity, the chronic myelogenous leukemic cell line K562 was found to be the most resistan...

background: detecting bence-jones protein in urine is essential for determining plasma cell dyscrasia and multiple myeloma. conventionally, acid-heat precipitation assay is used for detecting bence-jones protein in most medical laboratories; however, because of the low accuracy of this test, other more sensitive tests like urine electrophoresis are recommended.  materials and methods: in this s...

In anticipation of using single or fractionated hyperthermia treatment in ex vivo purging of leukemic bone marrow in the clinic, we have compared the hyperthermic sensitivity, kinetics of thermotolerance, and heat-shock protein synthesis in three human myelogenous leukemic cell lines. In terms of heat sensitivity, the chronic myelogenous leukemic cell line K562 was found to be the most resistan...