Abstract: Tetrahydropyranyladriamycin (THP or pirarubicin) destroys tumors via several mechanisms; one of which involves the production of ROS that requires molecular oxygen for its generation. SMA forms stable self-assembled associated micelles with pirarubicin...
Cancer
Hyperbaric Oxygen Therapy (HBOT) Research for Cancer.
The effect of oxygenation on the biological behaviour of tumours.
Malignant tumours often display hypoxic tissue areas where the oxygen tension is < 7 mm Hg. Studies in this field have proved that the hypoxic state boosts tumour progression and aggressive behaviour. In tissue culture experiments "in vitro" oxygenation was found to inhibit in itself the proliferation of cells of healthy tissues as well as benign and malignant tumours. It is a very important observation from oncotherapeutic point of view that in the presence of partial oxygen pressure < 2.5 mm Hg the radiosensitivity decreases (intrinsic radioresistance). Most of the anticancer drugs (cytostatics) are also ineffective in hypoxic tumours (chemoresistance).
Osteoradionecrosis of external auditory canal in nasopharyngeal carcinoma.
Abstract: Osteoradionecrosis (ORN) is one of the most serious complications of radiotherapy of nasopharyngeal carcinoma (NPC). ORN rarely occurs in the external auditory canal. This is a retrospective review of 11 NPC patients who had ORN in the external auditory...
Bisphosphonate-associated jawbone osteonecrosis: a correlation between imaging techniques and histopathology.
Abstract: Recently, jawbone osteonecrosis has been reported as a potential adverse effect of bisphosphonates administration. This paper considers and highlights histopathologic and radiologic features of this condition. Eleven patients, owing to unresponsiveness to...
Treatment of radiation proctitis.
Abstract: Late complications of pelvic radiotherapy occur in 5-20% of patients, particularly chronic radiation proctitis (CRP). Rectal bleeding is the most common symptom. Other symptoms include difficulty in defaecation or tenesmus because of loss of distensibility...
Immediate placement of implants and appliance in an irradiated patient: a case study.
Abstract: The purpose of this study was to evaluate the immediate placement of implants and appliance using hyperbaric oxygenation on a 45-year-old male with a history of squamous cell carcinoma of the floor of the mouth. Five Nobel Biocare implants between the mental...
Microsurgical reconstruction for radiation necrosis: an evolving disease.
Abstract: We performed a retrospective chart review of a tertiary care medical center. Our objective was to report our experience with microvascular reconstruction in the head and neck in patients who presented with radiation-induced tissue damage. We will discuss the...
Lung metastatic load limitation with hyperbaric oxygen.
Abstract: Despite some theoretical concern about cancer-enhancing effects ofhyperbaric oxygen (HBO2) therapy, it is frequently administered to cancer patients. We evaluated the growth of murine breast cancer cells in the lung after hyperbaric oxygen treatment in an...
Low-dose bupivacaine-fentanyl spinal anesthesia for lower extremity surgery in a nonparturient with Eisenmenger’s syndrome.
Abstract: Perioperative mortality in patients with Eisenmenger's syndrome is very high, particularly following cesarean section. This case report describes the successful use of low-dose bupivacaine-fentanyl spinal anesthesia for lower extremity surgery in a...