نتایج جستجو برای: contrastagent hyperthermia
تعداد نتایج: 9222 فیلتر نتایج به سال:
AIMS AND BACKGROUND Hyperthermia, the heating of tumors to 41.5-43 degrees C, could be today considered the fourth pillar of the treatment of cancer. Employed for 20 years in Europe, the U.S.A. and Asia, hyperthermia, used in addition to radiotherapy, chemotherapy and surgery, increases both local control and overall survival, restores the chance of the surgery for inoperable tumors and allows ...
Both misonidazole (MISO) and hyperthermia are known to enhance the radiation response of hypoxic cells, and to be selectively cytotoxic against cells in a hypoxic and acidic environment. The ability of these conditions to modify the effect of irradiation and their individual relationship was studied in a C3H mammary carcinoma and its surrounding skin. Simultaneous treatment with MISO, hyperther...
Neural tube defects (NTDs) are common congenital malformations. Mitogen-activated protein kinases (MAPKs) pathway is involved in many physiological processes. HMGB1 has been showed closely associated with neurulation and NTDs induced by hyperthermia and could activate MAPKs pathway. Since hyperthermia caused increased activation of MAPKs in many systems, the present study aims to investigate wh...
The vanilloid receptor TRPV1 (transient receptor potential vanilloid 1) is a cation channel that serves as a polymodal detector of pain-producing stimuli such as capsaicin, protons (pH <5.7), and heat. TRPV1 antagonists block pain behaviors in rodent models of inflammatory, neuropathic, and cancer pain, suggesting their utility as analgesics. Here, we report that TRPV1 antagonists representing ...
''Malignant Hypothermia'' syndrome is a rare, but dangerous occurrence, the aetiology of which is not known. Up to this date 180 cases have been reported. This syndrome i's seen generally in :male children over age of two years, and especially in adolescent males. Also those people with muscular abnormalities are more susciptable to this illnes'S. Anaesthetic agent such as halothane or muscular...
Ultrasound-stimulated microbubbles (MBs) were demonstrated to enhance cell kill from hyperthermia. Definity MBs were injected into wells containing 4T1 cells in culture media and scanned with 1-MHz ultrasound, an exposure duration of 30 s and a negative pressure of 0.5 or 1.3 MPa. Some cell samples were placed in a water bath heated to 42 °C for 5 min. Cell death was quantified. When combining ...
Frossard, Jean Louis, Catherine M Pastor, and Antoine Hadengue. Effect of hyperthermia on NF-kB binding activity in cerulein-induced acute pancreatitis. Am J Physiol Gastrointest Liver Physiol 280: G1157–G1162, 2001.— Although the pancreatic heat shock response has already been reported to confer protective effects during experimental pancreatitis, the mechanism of action remains unknown. We in...
Hyperthermia is a potentially lethal side effect of Methamphetamine (Meth) abuse, which involves the participation of peripheral thermogenic sites such as the Brown Adipose Tissue (BAT). In a previous study we found that the anti-oxidant N-acetyl cysteine (NAC) can prevent the high increase in temperature in a mouse model of Meth-hyperthermia. Here, we have further explored the ability of NAC t...
Malignant hyperthermia manifests as a rapid and sustained rise in temperature in response to pharmacological triggering agents, e.g. inhalational anesthetics and the muscle relaxant suxamethonium. Other clinical signs include an increase in end-tidal CO2, increased O2 consumption, as well as tachycardia, and if untreated a malignant hyperthermia episode can result in death. The metabolic change...
In patients with locoregional recurrences of breast cancer not suitable for resection, subsequent local control is difficult to maintain in previously irradiated areas when reirradiation alone or reirradiation with chemotherapy is used. Due to the limited number of treatment options there is a high risk of subsequent failure and uncontrollable local disease. In this group of patients, local hyp...
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