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Biomedical subjects

A J Brooks

Publications and source records attributed to A J Brooks.

23 records · Page 2Linked to original sources

Medication management issues for adolescents with asthma.

Issues related to medication use by teens with asthma were studied. Adolescents 13-17 years old who were receiving drug therapy for asthma were recruited to participate in focus groups. Facilitators asked open-ended questions, and the discussion was recorded and coded for content. Participants were asked to complete questionnaires covering attitudes and beliefs, family issues, and communication with physicians and pharmacists. Of 28 teens participating in the focus groups, 26 returned completed questionnaires. The teens considered themselves compliant with medication therapy. They said they talked more to physicians than to pharmacists and received more oral and written information from the physicians. Focus group responses indicated that teens wanted complete responsibility for taking their medications and experienced conflict with adults--parents, teachers, school nurses, and physicians--about medication use. The teens were concerned about adverse effects and the cost of medications and wanted more information about asthma and its treatment. The teens did not disobey their parents or physicians by refusing to take their medications, and peers did not have a negative influence on the teens' asthma management. The primary medication issue for this group of adolescents was managing their medication to control their asthma in spite of inappropriate rules or behavior by adults.

Administration, Inhalation↗

Extracorporeal shock-wave lithotripsy. Initial Australian experience.

Fifty patients were treated with extracorporeal shock-wave lithotripsy for upper urinary tract calculi. The procedure was performed by means of either epidural or general anaesthesia. There were minimal postoperative complications with a mean length of stay of 3.6 days. Six patients required a repeat extracorporeal shock-wave lithotripsy procedure for residual fragments during their initial admission to hospital. Forty (80%) patients were free of all stone fragments within one month of their discharge from hospital. Three patients have residual fragments of greater than 2 mm in axial length. The remainder underwent other procedures to remove residual stones or will be treated with further extracorporeal shock-wave lithotripsy therapy.

Anesthesia, Epidural↗

A comparison of flushing fluids for initial perfusion of kidneys for transplantation.

Four solutions for initial flushing of kidneys prior to transplantation were tested under conditions designed to resemble those of clinical cadaveric donor renal transplantation. The experimental model was the dog subjected to bilateral nephrectomy with renal autograft. Kidney grafts were subjected to 15 minutes' anoxia in vivo, 30 minutes' warm ischaemia at 37 degrees C ex vivo, and two hours' cold ischaemia before reimplantation. The four solutions used were Collins (C3), Perfudex (P), hyperosmolar citrate (HC), and a solution of bovine albumin containing dog red blood cells (BBA). Effects of the flushing fluids were compared by parameters relating to dog survival, renal function, and serum enzyme levels. With all parameters studied the best results occurred in HC perfused kidneys. Results with BBA perfusion were marginally worse, while C3 perfused kidneys were again inferior. P perfused kidneys clearly did least well. The results support the use of HC for clinical application.

Animals↗

Distal lower limb arterial reconstruction with modified allograft saphenous veins.

Cadaveric donor saphenous veins subjected to proteolytic enzymatic digestion, crossbonding and heparin bonding were used for arterial reconstruction in the legs of 13 patients threatened with amputation and without suitable autogenous saphenous veins. Distal anastomoses were to the tibial and peroneal vessels. Twelve patients (92 per cent) were discharged from hospital with functioning grafts; 9 grafts (69 per cent) continue to function 2-16 (average 8) months after operation. Amputation was avoided in 11 patients (85 per cent). Although early results are encouraging, late results are yet to be determined.

Aged↗

Characterisation of inter- and intra-molecular interactions of the dengue virus RNA dependent RNA polymerase as potential drug targets.

Our research is directed towards enhancing the understanding of the molecular biology of dengue virus replication with the ultimate goal being to develop novel antiviral strategies based on preventing critical inter- or intra-molecular interactions required for the normal virus life cycle. The viral RNA-dependent RNA polymerase (NS5) and the viral helicase (NS3) interaction offers a possible target for inhibitors to bind and prevent replication. In this study the yeast-two hybrid system was used to show that a small region of NS5 interacts with NS3, and also with the cellular nuclear transport receptor importin-beta. Furthermore, intramolecular interaction between the two putative domains of NS5 can also be detected by the yeast two-hybrid assay. We have also modified the colony lift assay for the beta-galactosidase reporter activity in intact yeast cells which reflects the strength of interaction between two proteins to a microtiter plate format. This assay offers a unique opportunity to screen for small molecule compounds that block physiologically important interactions.

Amino Acid Sequence↗