Body Weight Telemetry Is Useful to Reduce Interdialytic Weight Gain in Patients with End-Stage Renal Failure on Hemodialysis
TELEMEDICINE AND E-HEALTH
Authors: Neumann, Claas L.; Wagner, Fabian; Menne, Jan; Brockes, Christiane; Schmidt-Weitmann, Sabine; Rieken, Eike M.; Schettler, Volker; Hagenah, Gerrit C.; Matzath, Stephan; Zimmerli, Lukas; Haller, Hermann; Schulz, Egbert G.
Abstract
Lacking compliance with liquid intake restrictions is one of the major problems in patients on hemodialysis and causes an increased mortality. In 120 patients on hemodialysis with an average interdialytic weight gain (IWG) exceeding 1.5 kg on at least 2 days during the 4 weeks preceding the intervention, the effect of telemetric body weight measurement (TBWM) on IWG, ultrafiltration rate, and blood pressure was evaluated over a period of 3 months. Patients of the telemetric group (TG) were supplied with automatic scales, which transferred the weight via telemetry on a daily basis. In the case of IWG of more than 0.75 kg/24 h, a telephonic contact was made as required, and in the case of an IWG of more than 1.5 kg, telephonic contacting was obligatory along with the advice of a liquid intake restriction to 0.5 L/day until the next dialysis. The patients of the control group (CG) received standard treatment without telemetric monitoring. We examined specific data of the second interdialytic interval (IDI2) and the average within 1 week. The average difference of IWG between TG and CG was not significant before the start of the study but 0.2 kg (p = 0.027) (IDI2)/0.27kg (p = 0.001) (WP) at the end of the study, respectively. The average difference in the ultrafiltration rate within 1 week was 19.0 mL/h (p = 0.282) (IDI2)/8.2 mL/h (p = 0.409) before the start of the study but 28.4 mL/h (p = 0.122) (IDI2)/30.9 mL/h (p = 0.004) at the end of the study, respectively. Thus, TBWM is a feasible method for optimizing the IWG and reducing the ultrafiltration rate.
Isopentenyl pyrophosphate isomerases from Melaleuca alternifolia (Cheel) and their role in isoprenoid biosynthesis
JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY
Authors: Shelton, DA; Leach, DN; Henry, RJ
Abstract
Two cDNA clones, idi1 and idi2, representing different isoforms of isopentenyl pyrophosphate isomerase (IPP isomerase) were isolated from Melaleuca alternifolia (Cheel) by functional complementation of carotenoid biosynthesis in E. coli. Excluding the putative transit peptide region, the isoforms share 89.5% predicted protein sequence identity. The high level of conservation between the isoforms indicates that these genes may share a common ancestral origin and supports the proposition that cytosolic and plastid targeted IPP isomerase may be differentially translated from a single gene. This study supports recent evidence suggesting that isopentenyl pyrophosphate and dimethylallylic pyrophosphate are both immediate products of the deoxyxylulose pathway and that IPP isomerase may have a more central role in the biosynthesis of carotenoids than in the biosynthesis of monoterpenes.