Abstract:
:The foreign body capsule that forms around implanted devices such as glucose sensors is hypovascular and has limited permeability to glucose. Such a capsule may function better if well vascularized. We hypothesized that capsular vascularization achieved by local release of vascular endothelial growth factor (VEGF) would lead to enhanced function. Amperometric glucose sensor array disks, each with four indicating electrodes, were implanted into rats. Animals received local subcutaneous infusions of VEGF(165) via osmotic pumps at a location on the sensor face 2 mm from one of the electrodes ("near units"). "Intermediate" electrode units were 15 mm, and "distant" units were 22 mm, from the VEGF source. Every 2 weeks, a glucose infusion was given to assess sensor function by telemetry. Near units demonstrated a lower lag duration (delay after blood glucose) than intermediate and distant units. The mean absolute relative difference for near units was less than for distant units. The percentage of data pairs in the A region of the Clarke error grid of the near sensing units was greater than that of the distant units. Values for the functional measures for saline controls fell between near and distant VEGF values. Glucose sensor function was found to be more favorable in units immediately adjacent to the VEGF infusion port. The most likely cause for this finding is increased neovessel growth in the surrounding foreign body capsule. Slow release of angiogenic growth factors may be a potential method for chronically enhancing the function of a subcutaneously implanted biosensor.
journal_name
Diabetes Technol Therjournal_title
Diabetes technology & therapeuticsauthors
Ward WK,Wood MD,Casey HM,Quinn MJ,Federiuk IFdoi
10.1089/152091504773731320keywords:
subject
Has Abstractpub_date
2004-04-01 00:00:00pages
137-45issue
2eissn
1520-9156issn
1557-8593journal_volume
6pub_type
杂志文章abstract:BACKGROUND:The value of self-monitoring of blood glucose (SMBG) for persons with type 2 diabetes who do not use insulin remains controversial. This observational study compares the likelihood of medication adherence and change in glycated hemoglobin (A1C) for non-insulin-using patients using SMBG versus those not using...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章
doi:10.1089/dia.2012.0047
更新日期:2012-09-01 00:00:00
abstract:BACKGROUND:Glucose monitoring based on sampling skin interstitial fluid (ISF) is being developed as an alternative to fingerstick blood glucose monitoring. Time delays between rapidly changing levels of glucose in blood and interstitial fluid have been reported in the literature to be between 5 and 20 minutes. This stu...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章
doi:10.1089/152091599317530
更新日期:1999-04-01 00:00:00
abstract:BACKGROUND:Continuous subcutaneous insulin infusion (CSII) is believed to decrease glycemic variability and clinical hypoglycemia compared with the multiple daily insulin (MDI) regimen. To compare the indices of glycemic instability between CSII and MDI, we analyzed the continuous glucose monitoring system (CGMS) (Medt...
journal_title:Diabetes technology & therapeutics
pub_type: 临床试验,杂志文章
doi:10.1089/dia.2005.7.587
更新日期:2005-08-01 00:00:00
abstract:BACKGROUND:The efficacy of short-term professional continuous glucose monitoring (CGM) for glycemic control in patients with diabetes remains unclear. METHODS:We performed a 3-month study to evaluate the benefits of CGM in 64 patients. RESULTS:The overall glycemic control of patients who underwent CGM improved signif...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章
doi:10.1089/dia.2018.0164
更新日期:2018-09-01 00:00:00
abstract:OBJECTIVE:Exercise is a cornerstone of diabetes therapy in type 1 diabetes mellitus (DMT1) patients. The type of exercise is important in determining the propensity to hypoglycemia. We assessed, by continuous glucose monitoring (CGM), the glucose profiles during and in the following 20h after a session of two different...
journal_title:Diabetes technology & therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1089/dia.2010.0038
更新日期:2010-10-01 00:00:00
abstract:OBJECTIVES:We evaluated patterns of meal intake, insulin bolus delivery, and fingerstick glucose measurements during hybrid closed-loop and sensor-augmented pump (SAP) therapy, including associations with glucose control. METHODS:Data were retrospectively analyzed from pump-treated adults with type 1 diabetes who unde...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章,随机对照试验
doi:10.1089/dia.2016.0307
更新日期:2017-07-01 00:00:00
abstract:BACKGROUND:Currently, two systems for continuous tissue glucose monitoring (CGM) (Dexcom® G5 [DG5] and FreeStyle Libre [FL]) are intended to replace blood glucose monitoring (BGM) and, according to manufacturer labeling, are distributed as such in some jurisdictions, including the United States and the European Union. ...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章
doi:10.1089/dia.2018.0105
更新日期:2018-08-01 00:00:00
abstract:BACKGROUND:Real-time continuous glucose monitoring (CGM) was studied in 140 adults with diabetes over a 12-week period of home use. Hemoglobin A(1c)(HbA1c) was measured on day 1 (baseline) and at weeks 6 and 12. METHODS:On day 1, participants received the CGM device (STS(R) System, DexCom, Inc., San Diego, CA) and und...
journal_title:Diabetes technology & therapeutics
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1089/dia.2007.0205
更新日期:2007-06-01 00:00:00
abstract:OBJECTIVE:To evaluate the safety and effectiveness of the Loop Do-It-Yourself (DIY) automated insulin delivery system. RESEARCH DESIGN AND METHODS:A prospective real-world observational study was conducted, which included 558 adults and children (age range 1 to 71 years, mean HbA1c 6.8±1.0%) who initiated Loop either ...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章
doi:10.1089/dia.2020.0535
更新日期:2020-11-23 00:00:00
abstract:: Background: The Medtronic MiniMed™ 670G system adjusts basal insulin delivery in response to continuous glucose monitoring levels and is already in use in clinical practice. We tested the home-based feasibility of the new MiniMed advanced hybrid closed-loop (AHCL) system, ...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章
doi:10.1089/dia.2020.0448
更新日期:2020-12-08 00:00:00
abstract:BACKGROUND:Skin autofluorescence (AF) as measured with the AGE Reader (DiagnOptics Technologies, Groningen, The Netherlands) is a noninvasive prognostic marker in diabetes mellitus and other diseases with increased cardiovascular risk. This study provides reference values of healthy Caucasian control subjects as a func...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章
doi:10.1089/dia.2009.0113
更新日期:2010-05-01 00:00:00
abstract::The transplantation of microencapsulated islets may allow reversal of hyperglycemia in the absence of immunosuppression. Poly-L-lysine (PLL) on capsules may potentiate the fibrotic reaction against implanted capsules. The aims of this study were to investigate how the biocompatibility of such capsules affects their fu...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章
doi:10.1089/152091503322250677
更新日期:2003-01-01 00:00:00
abstract::Basal insulin analogs are recognized as an effective method of achieving and maintaining glycemic control for patients with type 2 diabetes. However, the progressive nature of the disease means that some individuals may require additional ways to maintain their glycemic goals. Intensification in these circumstances ha...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章,评审
doi:10.1089/dia.2010.0250
更新日期:2011-09-01 00:00:00
abstract:BACKGROUND:Little information is available regarding glucose fluctuations in postprandial states and during the oral glucose tolerance test (OGTT) in Japanese people with normal glucose tolerance (NGT). METHODS:Glucose profiles of 27 Japanese people were measured for 4 days by using continuous glucose monitoring. A 75...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章
doi:10.1089/dia.2008.0083
更新日期:2009-07-01 00:00:00
abstract:: Objective: To assess the degree, duration, mean absolute relative difference (MARD), and error analysis of discrepant values per continuous glucose monitoring (CGM) systems after hydroxyurea (HU) administration. Research Design and Methods: ...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章
doi:10.1089/dia.2020.0490
更新日期:2020-12-30 00:00:00
abstract:BACKGROUND:Preventing the complications of diabetes requires tight control and minimizing blood glucose fluctuation. Pursuing these goals increases the risk of severe hypoglycemia. The authors hoped to identify if using continuous glucose monitoring (CGM) decreased the incidence of severe hypoglycemia, resulted in less...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章
doi:10.1089/dia.2009.0121
更新日期:2010-03-01 00:00:00
abstract:BACKGROUND:The Ascensia CONTOUR System (Bayer HealthCare LLC, Elkhart, IN) is a new blood glucose (BG) monitoring system (BGMS) that uses glucose dehydrogenase chemistry and that combines low sample volume, fast response time, an auto-control marking feature, and an auto-calibration function in a small package. METHOD...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章,多中心研究
doi:10.1089/dia.2005.7.283
更新日期:2005-04-01 00:00:00
abstract:BACKGROUND:The optimal treatment of diabetes in pregnancy requires accurate measurement of blood glucose levels, in order to minimize adverse outcomes for both mother and neonate. Self-monitoring of blood glucose is routinely used to measure glycemic control and to assess whether treatment targets are being met; howeve...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章,收录出版
doi:10.1089/dia.2015.0104
更新日期:2016-02-01 00:00:00
abstract:BACKGROUND:We aimed to assess the effect of continuous subcutaneous insulin infusion (CSII) therapy in patients with "recalcitrant diabetes" whose glycemia had not been controlled adequately with multiple daily injections of insulin or insulin plus oral hypoglycemic agents. PATIENTS AND METHODS:We retrospectively anal...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章
doi:10.1089/dia.2009.0066
更新日期:2009-11-01 00:00:00
abstract:BACKGROUND:A brief history of the field of human factors research is covered, along with how this discipline is leveraged within medical device companies, to eliminate design flaws in products, in order to make them safe and effective for human use. The way in which human factors research was used to develop the t:slim...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章,多中心研究
doi:10.1089/dia.2013.0098
更新日期:2013-10-01 00:00:00
abstract:BACKGROUND:Continuous glucose monitoring (CGM) has been shown to be a valuable tool to improve glycemic control in patients with diabetes. The objective of this pilot study was to develop and implement CGM in an existing diabetes clinic for low-income patients on multiple daily injections. SUBJECTS AND METHODS:This wa...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章,随机对照试验
doi:10.1089/dia.2013.0072
更新日期:2013-10-01 00:00:00
abstract:BACKGROUND:There are currently few data available on the long-term use of continuous subcutaneous insulin infusion (CSII) (insulin pump) therapy in children. METHODS:Charts from 291 youth with type 1 diabetes (T1D) who were treated with CSII therapy for at least 1 year were reviewed. Data analysis included hemoglobin ...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章
doi:10.1089/dia.2007.0214
更新日期:2007-10-01 00:00:00
abstract:BACKGROUND:Multicenter long-term studies of predictors for the effectiveness of continuous subcutaneous insulin infusion (CSII) in clinical practice are lacking. We hypothesized that there are substantially greater reductions in hemoglobin A1c (HbA1c) in patients with poor glycemic control and that other predictors may...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章
doi:10.1089/dia.2014.0139
更新日期:2015-01-01 00:00:00
abstract:: Objective: To assess the safety and efficacy of a simplified initialization for the Tandem t:slim X2 Control-IQ hybrid closed-loop system, using parameters based on total daily insulin ("MyTDI") in adolescents with type 1 diabetes under usual activity and during periods of...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章
doi:10.1089/dia.2019.0471
更新日期:2020-08-01 00:00:00
abstract:OBJECTIVE:this study assessed patient-related factors associated with persistence and resumption of using pens as insulin delivery devices. METHODS:patients (n = 549; 300 current pen users, 249 former pen users) were recruited from national panels to participate in computer-assisted telephone interviews. Measures incl...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章
doi:10.1089/dia.2010.0128
更新日期:2011-01-01 00:00:00
abstract:AIMS:This study assessed patient-reported outcomes in a multicenter study of adults with type 2 diabetes taking mealtime Technosphere(®) inhaled insulin (MannKind Corp., Valencia, CA) and basal insulin (insulin glargine) or premixed aspart insulin 70/30. METHODS:Subjects were 618 non-smoking adults with starting hemog...
journal_title:Diabetes technology & therapeutics
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1089/dia.2011.0037
更新日期:2011-12-01 00:00:00
abstract:AIM:Insulin therapy induces remission in subjects with newly diagnosed type 2 diabetes mellitus (T2DM). This study assessed the insulin and C-peptide levels in newly diagnosed T2DM subjects during low-dose insulin therapy. SUBJECTS AND METHODS:Twenty newly diagnosed, drug-naive, T2DM patients without acute or chronic ...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章
doi:10.1089/dia.2010.0187
更新日期:2011-04-01 00:00:00
abstract::There are three main issues in non-invasive (NI) glucose measurements: namely, specificity, compartmentalization of glucose values, and calibration. There has been progress in the use of near-infrared and mid-infrared spectroscopy. Recently new glucose measurement methods have been developed, exploiting the effect of ...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章,评审
doi:10.1089/dia.2004.6.660
更新日期:2004-10-01 00:00:00
abstract:BACKGROUND:The quantitative analysis of glucose time-series can greatly help the management of diabetes. In particular, a static nonlinear transformation, which symmetrizes the distribution of glucose levels by bringing them in the so-called risk space, was proposed previously for both self-monitoring blood glucose and...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章
doi:10.1089/dia.2011.0006
更新日期:2011-08-01 00:00:00
abstract:BACKGROUND:The aim of this investigation was to assess clinical predictors of the glycosylated hemoglobin (HbA1C) response after the addition of a thiazolidinedione (TZD) to a biguanide, a sulfonylurea, or both in subjects with type 2 diabetes. METHODS:Chart review (n = 68 physicians) was used to identify consecutive ...
journal_title:Diabetes technology & therapeutics
pub_type: 杂志文章
doi:10.1089/dia.2007.0248
更新日期:2007-12-01 00:00:00