* Diazoxide, a K(ATP) channel opener, prevents ischemia-reperfusion injury in rodent pancreatic islets.
- Diazoxide (DZ) is a pharmacological opener of ATP-sensitive K(+) channels that has been used for mimicking ischemic preconditioning and shows protection against ischemic damage. Here we investigated whether diazoxide supplementation to University of Wisconsin (UW) solution has cellular protection during islet isolation and improves in vivo islet transplant outcomes in a rodent ischemia model. C57/B6 mice pancreata were flushed with UW or UW + DZ solution and cold preserved for 6 or 10 h prior to islet isolation. Islet yield, in vitro and in vivo function, mitochondrial morphology, and apoptosis were evaluated. Significantly higher islet yields were observed in the UW + DZ group than in the UW group (237.5 ± 25.6 vs. 108.7 ± 49.3, p < 0.01). The islets from the UW + DZ group displayed a significantly higher glucose-induced insulin secretion (0.97 ng/ml ± 0.15 vs. 0.758 ng/ml ± 0.21, p = 0.009) and insulin content (60.96 ng/islet ± 13.94 vs. 42.09 ng/islet ± 8.15, p = 0.002). The DZ-treated islets had well-preserved mitochondrial morphology with superior responses of mitochondrial potentials, and calcium influx responded to glucose. A higher number of living cells and less late apoptotic cells were observed in the UW + DZ group (p < 0.05). Additionally, the islets from the UW + DZ group had a significantly higher cure rate and improved glucose tolerance. This study is the first to report mitoprotective effects of DZ for pancreas preservation and islet isolation. In the future, it will be necessary to further understand the underlying mechanism for the mitoprotection and to test this promising approach for pancreas preservation and the islet isolation process in nonhuman primates and ultimately humans.
=>価格を評定する, 割合, 率, 歩合, 料金, 値段, 相場, 速度, 度合, 人を〜を思う, みなす, 価値がある,
人を〜とみなす, 科金, 評価する
Overview of noun rate
The noun rate has 4 senses (first 3 from tagged texts)
1. (68) rate -- (a magnitude or frequency relative to a time unit; "they traveled at a rate of 55
miles per hour"; "the rate of change was faster than expected")
2. (39) rate, charge per unit -- (amount of a charge or payment relative to some basis; "a 10-minute
phone call at that rate would cost $5")
3. (1) pace, rate -- (the relative speed of progress or change; "he lived at a fast pace"; "he works
at a great rate"; "the pace of events accelerated")
4. rate -- (a quantity or amount or measure considered as a proportion of another quantity or amount
or measure; "the literacy rate"; "the retention rate"; "the dropout rate")
Overview of verb rate
The verb rate has 3 senses (first 3 from tagged texts)
1. (9) rate, rank, range, order, grade, place -- (assign a rank or rating to; "how would you rank
these students?"; "The restaurant is rated highly in the food guide")
2. (2) rate -- (be worthy of or have a certain rating; "This bond rates highly")
3. (1) rate, value -- (estimate the value of; "How would you rate his chances to become President?";
"Gold was rated highly among the Romans")
--- WordNet end ---