BACKGROUND C-arm fluoroscopy equipment is important for interventional pain management and can cause radiation injury to physicians and patients. We compared radiation safety education and efforts to reduce the radiation exposure of pain specialists. METHODS A survey of 49 pain specialists was conducted anonymously in 2016. The questionnaire had 16 questions. That questionnaire was about radi...

1,25-Dihydroxyvitamin D(3) and vitamin D(3) analogues, such as EB 1089, potentiate the response to ionizing radiation in breast tumor cells. The current studies address the basis for this interaction by evaluating DNA damage and repair, the effect of interference with reactive oxygen generation, the involvement of p53 and caspase-3, signaling through c-myc, as well as the induction of senescenc...

The answer must be that the radiation is canceled by destructive interference between the radiation fields of the large number N of electrons that make up the steady current. A single electron in uniform circular motion emits electric dipole radiation, whose power is proportional to the square of the acceleration a = v/r, and hence to (v/c). But, the electric dipole moment vanishes for two elec...

in order to find a prophylactic supplementation for individuals who are at risk of exposure to ionizing radiation, we attempted to evaluate the effect of vitamin e (vit-e), a biological free radical scavenger, on restoration of hepatic lipid peroxidation (lpo) and lipid profile (lp) changes induced by sublethal g- radiation in balb/c mice. the concentrations of cholesterol and phospholipid were...

Starting with the well-established field equations that describe the radiation fields of lightning return strokes, the radiation fields generated when a charged particle is incident on or moving away from a perfectly conducting plane are obtained. These fields are known in the literature as transition radiation. The field equations derived thus are used to evaluate the energy, momentum and the ...

The mechanism by which ultraviolet radiation induces melanogenesis in epidermal melanocytes is unknown. Previous observations that in cultured human melanocytes 1-oleoyl-2-acetylglycerol augmented both basal and ultraviolet radiation-induced melanogenesis, suggested that the responses were mediated via protein kinase C. However, paradoxically the phorbol ester TPA was without effect. Therefore,...

Intratumoral hypoxia is an important contributory factor to tumor cell resistance to radiotherapy. SirT1, a nicotinamide adenine dinucleotide (NAD(+))-dependent histone/protein deacetylase, has been linked to the decrease of radiation-induced DNA damage and seems to be critical for cancer therapy. The purpose of this study was to investigate the role of SirT1 in hypoxia-induced radiation respon...

In order to find a prophylactic supplementation for individuals who are at risk of exposure to ionizing radiation, we attempted to evaluate the effect of Vitamin E (Vit-E), a biological free radical scavenger, on restoration of hepatic lipid peroxidation (LPO) and lipid profile (LP) changes induced by sublethal g- radiation in BALB/c mice. The concentrations of cholesterol and phospholipid were...

BACKGROUND Patients undergoing radiation therapy for oral squamous cell carcinoma (OSCC) have an increased risk of developing oral candidiasis. Radiation-induced hyposalivation is thought to be a major predisposing factor for it. Radiation therapy for 2-3 weeks leads to increase in the number of candidal species in the oral cavity, eventually leading to oral candidiasis. OBJECTIVE To evaluate...

Abstract A singlet oxygen production was monitored using a sensor green chemical probe; reaction of probe with produces fluorescent endoperoxide. Adding ethanol to the irradiated system resulted in decrease fluorescence signal, which indicates concentration formed under UV-C irradiation. Thus, likely quench study. This quenching did not occur use methanol. When irradiating E. coli cells presenc...