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Staging Presymptomatic Type 1 Diabetes: A Scientific Statement of JDRF, the Endocrine Society, and the American Diabetes Association

Richard A. Insel
Oct 1, 2015; 38:1964-1974
Scientific Statement




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PIONEER 1: Randomized Clinical Trial of the Efficacy and Safety of Oral Semaglutide Monotherapy in Comparison With Placebo in Patients With Type 2 Diabetes

Vanita R. Aroda
Sep 1, 2019; 42:1724-1732
Emerging Therapies: Drugs and Regimens




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Impact of Fat, Protein, and Glycemic Index on Postprandial Glucose Control in Type 1 Diabetes: Implications for Intensive Diabetes Management in the Continuous Glucose Monitoring Era

Kirstine J. Bell
Jun 1, 2015; 38:1008-1015
Type 1 Diabetes at a Crossroads




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The Pros and Cons of Diagnosing Diabetes With A1C

Enzo Bonora
May 1, 2011; 34:S184-S190
Diabetes




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Glucose Management Indicator (GMI): A New Term for Estimating A1C From Continuous Glucose Monitoring

Richard M. Bergenstal
Nov 1, 2018; 41:2275-2280
Perspectives in Care




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Long-Acting Glucagon-Like Peptide 1 Receptor Agonists: A review of their efficacy and tolerability

Alan J. Garber
May 1, 2011; 34:S279-S284
Diabetes Treatments




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2017 National Standards for Diabetes Self-Management Education and Support

Joni Beck
Oct 1, 2017; 40:1409-1419
National Standards




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Table 1-Systeme International (SI) units for plasma, serum, or blood concentrations


Aug 1, 1995; 18:1223-1224
Syst[egrave]me International (SI) Units




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Economic Costs of Diabetes in the U.S. in 2017

American Diabetes Association
May 1, 2018; 41:917-928
The Costs Of Diabetes




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2019 Update to: Management of Hyperglycemia in Type 2 Diabetes, 2018. A Consensus Report by the American Diabetes Association (ADA) and the European Association for the Study of Diabetes (EASD)

John B. Buse
Feb 1, 2020; 43:487-493
Consensus Report Update




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Genetic Discrimination Between LADA and Childhood-Onset Type 1 Diabetes Within the MHC

OBJECTIVE

The MHC region harbors the strongest loci for latent autoimmune diabetes in adults (LADA); however, the strength of association is likely attenuated compared with that for childhood-onset type 1 diabetes. In this study, we recapitulate independent effects in the MHC class I region in a population with type 1 diabetes and then determine whether such conditioning in LADA yields potential genetic discriminators between the two subtypes within this region.

RESEARCH DESIGN AND METHODS

Chromosome 6 was imputed using SNP2HLA, with conditional analysis performed in type 1 diabetes case subjects (n = 1,985) and control subjects (n = 2,219). The same approach was applied to a LADA cohort (n = 1,428) using population-based control subjects (n = 2,850) and in a separate replication cohort (656 type 1 diabetes case, 823 LADA case, and 3,218 control subjects).

RESULTS

The strongest associations in the MHC class II region (rs3957146, β [SE] = 1.44 [0.05]), as well as the independent effect of MHC class I genes, on type 1 diabetes risk, particularly HLA-B*39 (β [SE] = 1.36 [0.17]), were confirmed. The conditional analysis in LADA versus control subjects showed significant association in the MHC class II region (rs3957146, β [SE] = 1.14 [0.06]); however, we did not observe significant independent effects of MHC class I alleles in LADA.

CONCLUSIONS

In LADA, the independent effects of MHC class I observed in type 1 diabetes were not observed after conditioning on the leading MHC class II associations, suggesting that the MHC class I association may be a genetic discriminator between LADA and childhood-onset type 1 diabetes.




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Vasodilatory Actions of Glucagon-Like Peptide 1 Are Preserved in Skeletal and Cardiac Muscle Microvasculature but Not in Conduit Artery in Obese Humans With Vascular Insulin Resistance

OBJECTIVE

Obesity is associated with microvascular insulin resistance, which is characterized by impaired insulin-mediated microvascular recruitment. Glucagon-like peptide 1 (GLP-1) recruits skeletal and cardiac muscle microvasculature, and this action is preserved in insulin-resistant rodents. We aimed to examine whether GLP-1 recruits microvasculature and improves the action of insulin in obese humans.

RESEARCH DESIGN AND METHODS

Fifteen obese adults received intravenous infusion of either saline or GLP-1 (1.2 pmol/kg/min) for 150 min with or without a euglycemic insulin clamp (1 mU/kg/min) superimposed over the last 120 min. Skeletal and cardiac muscle microvascular blood volume (MBV), flow velocity and blood flow, brachial artery diameter and blood flow, and pulse wave velocity (PWV) were determined.

RESULTS

Insulin failed to change MBV or flow in either skeletal or cardiac muscle, confirming the presence of microvascular insulin resistance. GLP-1 infusion alone increased MBV by ~30% and ~40% in skeletal and cardiac muscle, respectively, with no change in flow velocity, leading to a significant increase in microvascular blood flow in both skeletal and cardiac muscle. Superimposition of insulin to GLP-1 infusion did not further increase MBV or flow in either skeletal or cardiac muscle but raised the steady-state glucose infusion rate by ~20%. Insulin, GLP-1, and GLP-1 + insulin infusion did not alter brachial artery diameter and blood flow or PWV. The vasodilatory actions of GLP-1 are preserved in both skeletal and cardiac muscle microvasculature, which may contribute to improving metabolic insulin responses and cardiovascular outcomes.

CONCLUSIONS

In obese humans with microvascular insulin resistance, GLP-1’s vasodilatory actions are preserved in both skeletal and cardiac muscle microvasculature, which may contribute to improving metabolic insulin responses and cardiovascular outcomes.




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Leukocyte Telomere Length, DNA Oxidation, and Risk of Lower-Extremity Amputation in Patients With Long-standing Type 1 Diabetes

OBJECTIVE

Telomere shortening and DNA oxidation are associated with premature vascular aging, which may be involved in lower-extremity amputation (LEA). We sought to investigate whether leukocyte telomere length (LTL) and plasma 8-hydroxy-2'-deoxyguanosine (8-OHdG), a biomarker of DNA oxidation, were associated with LEA in subjects with type 1 diabetes at high vascular risk.

RESEARCH DESIGN AND METHODS

LTL (quantitative PCR) and plasma 8-OHdG concentrations (immunoassay method) were assessed at baseline in the GENEDIAB (Génétique de la Néphropathie Diabétique) type 1 diabetes cohort. Logistic and Cox proportional hazards regression models were fitted to estimate odds ratio (OR) (at baseline) and hazard ratio (HR) (during follow-up), with related 95% CI, by increasing biomarker tertiles (T1, T2, T3).

RESULTS

Among 478 participants (56% male, mean ± SD age 45 ± 12 years and diabetes duration 29 ± 10 years), 84 patients had LEA at baseline. Baseline history of LEA was associated with shorter LTL (OR for T2 vs. T1 0.62 [95% CI 0.32–1.22] and for T3 vs. T1 0.41 [0.20–0.84]) but not with plasma 8-OHdG (1.16 [0.56–2.39] and 1.24 [0.61–2.55], respectively). New cases of LEA occurred in 34 (12.3%) participants during the 10-year follow-up. LTL were shorter (HR T2 vs. T1 0.25 [95% CI 0.08–0.67] and T3 vs. T1 0.29 [0.10–0.77]) and plasma 8-OHdG higher (2.20 [0.76–7.35] and 3.11 [1.07–10.32]) in participants who developed LEA during follow-up compared with others. No significant interaction was observed between biomarkers on their association with LEA.

CONCLUSIONS

We report the first independent association between LTL shortening and excess risk of LEA in type 1 diabetes. High plasma 8-OHdG was also associated with incident LEA but partly dependent on cofounding variables.




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Respective Contributions of Glycemic Variability and Mean Daily Glucose as Predictors of Hypoglycemia in Type 1 Diabetes: Are They Equivalent?

OBJECTIVE

To evaluate the respective contributions of short-term glycemic variability and mean daily glucose (MDG) concentration to the risk of hypoglycemia in type 1 diabetes.

RESEARCH DESIGN AND METHODS

People with type 1 diabetes (n = 100) investigated at the University Hospital of Montpellier (France) underwent continuous glucose monitoring (CGM) on two consecutive days, providing a total of 200 24-h glycemic profiles. The following parameters were computed: MDG concentration, within-day glycemic variability (coefficient of variation for glucose [%CV]), and risk of hypoglycemia (presented as the percentage of time spent below three glycemic thresholds: 3.9, 3.45, and 3.0 mmol/L).

RESULTS

MDG was significantly higher, and %CV significantly lower (both P < 0.001), when comparing the 24-h glycemic profiles according to whether no time or a certain duration of time was spent below the thresholds. Univariate regression analyses showed that MDG and %CV were the two explanatory variables that entered the model with the outcome variable (time spent below the thresholds). The classification and regression tree procedure indicated that the predominant predictor for hypoglycemia was %CV when the threshold was 3.0 mmol/L. In people with mean glucose ≤7.8 mmol/L, the time spent below 3.0 mmol/L was shortest (P < 0.001) when %CV was below 34%.

CONCLUSIONS

In type 1 diabetes, short-term glycemic variability relative to mean glucose (i.e., %CV) explains more hypoglycemia than does mean glucose alone when the glucose threshold is 3.0 mmol/L. Minimizing the risk of hypoglycemia requires a %CV below 34%.




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The Contemporary Prevalence of Diabetic Neuropathy in Type 1 Diabetes: Findings From the T1D Exchange

OBJECTIVE

To evaluate the contemporary prevalence of diabetic peripheral neuropathy (DPN) in participants with type 1 diabetes in the T1D Exchange Clinic Registry throughout the U.S.

RESEARCH DESIGN AND METHODS

DPN was assessed with the Michigan Neuropathy Screening Instrument Questionnaire (MNSIQ) in adults with ≥5 years of type 1 diabetes duration. A score of ≥4 defined DPN. Associations of demographic, clinical, and laboratory factors with DPN were assessed.

RESULTS

Among 5,936 T1D Exchange participants (mean ± SD age 39 ± 18 years, median type 1 diabetes duration 18 years [interquartile range 11, 31], 55% female, 88% non-Hispanic white, mean glycated hemoglobin [HbA1c] 8.1 ± 1.6% [65.3 ± 17.5 mmol/mol]), DPN prevalence was 11%. Compared with those without DPN, DPN participants were older, had higher HbA1c, had longer duration of diabetes, were more likely to be female, and were less likely to have a college education and private insurance (all P < 0.001). DPN participants also were more likely to have cardiovascular disease (CVD) (P < 0.001), worse CVD risk factors of smoking (P = 0.008), hypertriglyceridemia (P = 0.002), higher BMI (P = 0.009), retinopathy (P = 0.004), reduced estimated glomerular filtration rate (P = 0.02), and Charcot neuroarthropathy (P = 0.002). There were no differences in insulin pump or continuous glucose monitor use, although DPN participants were more likely to have had severe hypoglycemia (P = 0.04) and/or diabetic ketoacidosis (P < 0.001) in the past 3 months.

CONCLUSIONS

The prevalence of DPN in this national cohort with type 1 diabetes is lower than in prior published reports but is reflective of current clinical care practices. These data also highlight that nonglycemic risk factors, such as CVD risk factors, severe hypoglycemia, diabetic ketoacidosis, and lower socioeconomic status, may also play a role in DPN development.




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As COVID-19 Slows Human Mobility, Can the Global Compact for Migration Meet the Test for a Changed Era?

The coronavirus pandemic dramatically reshaped how human mobility is managed just as the Global Compact for Safe, Orderly, and Regular Migration was beginning to move from paper to implementation. As governments face pressing public-health, economic, and other concerns in responding to COVID-19, this MPI Europe commentary explores whether the first comprehensive global agreement on migration can adjust to a changed reality.




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New ADA standard, technical report available for comment by Feb. 17

The American Dental Association Standards Committee on Dental Informatics has approved two documents for circulation and comment.




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Arizona Mission of Mercy event provides treatment to over 1,700

The Central Arizona Dental Society hosted a Mission of Mercy event Dec. 13-14 at the Arizona State Fairgrounds in Phoenix, providing treatment to 1,785 patients totaling just over $2 million in free dental service.




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2019 marks big year for Washington office

The Association’s Washington office covered a wide range of advocacy issues in 2019 — from vaping to student loan reform to making sure dentistry was exempt from the U.S. Mexico-Tourism Act.




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CDC to offer coronavirus guidance during webinar Jan. 31

The Centers for Disease Control and Prevention will provide interim guidance to clinicians regarding the coronavirus outbreak during a webinar at 2 p.m. EST Jan. 31.




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Looking back: ADA annual meeting welcomes more than 200,000 attendees since 2010

The last decade brought 236,658 attendees to the American Dental Association's annual meeting. The ADA will continue to build on that momentum with the ADA FDC Annual Meeting from Oct. 15-18 in Orlando, Florida.




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UCSF dental school receives $10M donation

The University of California San Francisco School of Dentistry announced Jan. 30 it received a $10 million gift — the largest contribution ever to the dental school — to establish an endowment that would fun efforts to modernize its curriculum and recruit and retain faculty members.




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Dental Assistants Recognition Week set for March 1-7

The ADA Council on Dental Practice is encouraging dentists to acknowledge the dedication and contributions of their dental assistants during Dental Assistants Recognition Week.




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ADA Practice Transitions offering promotional trial for dentists who sign up through March 1

ADA Practice Transitions, a service offered by the ADA focused on helping dentists make the process of joining or leaving a practice successful, is offering a free three-month trial.




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Private practice pays $100,000 settlement for potential HIPAA violation

Ogden, Utah — The Office for Civil Rights announced March 3 that it had reached a settlement with Dr. Steven A. Porter’s medical practice to settle a potential violation of the Health Insurance Portability and Accountability Act security rule.




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Free ADA webinar offering answers to pressing COVID-19 questions

The ADA is partnering with the Organization for Safety, Asepsis and Prevention in providing a free on-demand webinar on Friday, March 20, with content for the program based on questions the ADA has received from members looking for guidance while navigating the novel coronavirus pandemic.




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Treasury, IRS delay federal tax filing, payments until July 15

Taxpayers do not need to file or pay their federal income taxes until July 15, after the U.S. Department of the Treasury and Internal Revenue Service extended both deadlines from April 15.




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ADA begins to address coding, billing procedures during COVID-19 outbreak

The ADA is releasing a guide intended to help dental offices navigate issues related to coding and billing for virtual check-ins in the midst of the COVID-19 outbreak.




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Scholarship due date for dental education program for directors pushed to April 15

The extension comes after it was announced the program will now be held Oct. 22-23 in Atlanta due to concerns over COVID-19. LEAP was originally set for May 7-8.




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HRSA updates FAQs for health centers during COVID-19

The Health Resources and Services Administration says it is working to keep health centers and health center program partners updated on the latest information regarding COVID-19.




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ADA urges CDC to provide ‘immediate guidance’ on protecting dental patients, staff from COVID-19 during emergency treatments

The American Dental Association is urging the Centers for Disease Control and Prevention to provide immediate guidance on the best way to protect dental patients and staff from the transmission of COVID-19 during emergency and urgent care situations.




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ADA Member Advantage-endorsed companies respond to COVID-19 pandemic

During these uncertain times, there is a lot of anxiety and understandably some of that comes in the form of financial worries. ADA Member Advantage-endorsed companies that provide financial services have offered information for their customers and ADA members.




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Dr. Glick to step down March 31 as JADA editor

Dr. Michael Glick, professor in oral diagnostic sciences at the University at Buffalo School of Dental Medicine, is stepping down as editor of The Journal of the American Dental Association effective March 31.




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HPI poll examines impact of COVID-19 on dental practices

The ADA Health Policy Institute launched an ongoing biweekly poll the week of March 23 that shows 76% of dentists surveyed had closed their offices to all but emergency patients during the COVID-19 pandemic. Another 19% indicated their offices are closed completely.




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ADA offers free e-books on professional risk, OSHA from April 1-7

As part of its ongoing efforts to support dentists during the COVID-19 pandemic, the ADA is offering members two free e-books the week of April 1-7: “Managing Professional Risks: Best Practices” and “The ADA Practical Guide to OSHA Training: Compliance for Dental Professionals.”




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ADA releases interim guidance on minimizing COVID-19 transmission risk when treating dental emergencies

The American Dental Association has released interim guidance for dentists on how to minimize the risk of COVID-19 transmission before, during and after treating dental emergencies.




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10 Under 10 Awards: Recognizing the ‘unsung heroes’ of the profession

The ADA announced April 6 the recipients of its third annual 10 Under 10 Awards, which recognizes 10 new dentists who demonstrate excellence early in their careers.




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ADA offers free e-books on managing finances, HIPAA training April 8-14

As part of its ongoing efforts to support dentists during the COVID-19 pandemic, the ADA is offering members two free e-books the week of April 8-14: “Managing Finances: Best Practices” and “The ADA Practical Guide to HIPAA Training.”




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CODA asks accredited dental programs for details on COVID-19 response

The Commission on Dental Accreditation announced April 3 that it directed all CODA-accredited dental programs to submit a report by May 15 on their use of distance learning, enhanced activities and other educational modalities in response to the COVID-19 pandemic.




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CODA site visits rescheduled to 2021 due to COVID-19

The Commission on Dental Accreditation announced April 3 that it will reschedule all postponed and remaining site visits this year, including regular/reaccreditation and special focused site visits, to 2021 in response to the COVID-19 pandemic.




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ADA leadership answers members’ questions about minimizing risk of COVID-19 transmission

A panel of ADA experts answered members’ questions in a video released April 8 regarding the Association’s interim guidance for minimizing the risk of COVID-19 transmission while performing emergency and urgent dental care.




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ADA council affirms importance of code of ethics during COVID-19 pandemic

The ADA Council on Ethics, Bylaws and Judicial Affairs’ ethics subcommittee authored an online essay as part of its Ethical Moment series in the May issue of The Journal of the American Dental Association, affirming that the ADA Principles of Ethics and Code of Professional Conduct is just as important as ever when making the difficult decisions they encounter on a daily basis.




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Researcher remembered for contributions to dentistry succumbs to COVID-19 complications

Dr. Leo M. Sreebny, Ph.D., who had a long and distinguished career in academia as a professor of dentistry and researcher, particularly in issues related to saliva and dry mouth, died April 5 from complications of COVID-19 at age 98.




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Second week of HPI polling shows dentists’ response to COVID-19

The second round of results from the ADA Health Policy Institute poll on the impact of COVID-19 on dental practices showed significant financial impact, with collections for the vast majority of dentists less than 5% of what is typical in their practice.




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Homeland Security issues alert on cybercriminals increasingly exploiting COVID-19 pandemic

The U.S. Department of Homeland Security issued an alert April 8 warning that cybercriminals are increasingly exploiting the COVID-19 pandemic to target individuals, small and medium businesses and large organizations.




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ADA president appoints task force for dental practice recovery after COVID-19 pandemic

American Dental Association President Chad P. Gehani has assembled an advisory task force to oversee the ADA’s development of tools for dentists as they bounce back from the effects of practice restrictions and closures caused by the COVID-19 pandemic.




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Open Payments data open to review until May 15

The Centers for Medicare and Medicaid Services has set a deadline of May 15 for covered recipients to review and dispute Open Payments data for program year 2019.




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ADA urges HHS to federally recognize licensed dentists to administer point of service COVID-19 tests

The ADA sent a letter to the U.S. Department of Health and Human Services April 17 asking the agency to “issue federal recognition that licensed dentists may administer point of service tests authorized by the Food and Drug Administration” during the COVID-19 pandemic.




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ADA advises dentists to follow science-backed guidance regarding COVID-19 testing, avoid 'gray market'

The ADA is urging dentists to be cautious about using novel coronavirus diagnostic tests before they have been properly evaluated and made available for dentists.




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Wisconsin dentists donate personal protective equipment amid COVID-19 pandemic

Wisconsin dentists have answered the call for personal protective equipment by organizing drives and donating their surplus supplies to hospitals and urgent care facilities treating patients with COVID-19.