1
|
Watso JC, Robinson AT, Singar SAB, Cuba JN, Koutnik AP. Advanced cardiovascular physiology in an individual with type 1 diabetes after 10-year ketogenic diet. Am J Physiol Cell Physiol 2024; 327:C446-C461. [PMID: 38912731 DOI: 10.1152/ajpcell.00694.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 06/18/2024] [Accepted: 06/18/2024] [Indexed: 06/25/2024]
Abstract
Adults with type 1 diabetes (T1D) have an elevated risk for cardiovascular disease (CVD) compared with the general population. HbA1c is the primary modifiable risk factor for CVD in T1D. Fewer than 1% of patients achieve euglycemia (<5.7% HbA1c). Ketogenic diets (KD; ≤50 g carbohydrate/day) may improve glycemia and downstream vascular dysfunction in T1D by reducing HbA1c and insulin load. However, there are concerns regarding the long-term CVD risk from a KD. Therefore, we compared data collected in a 60-day window in an adult with T1D on exogenous insulin who consumed a KD for 10 years versus normative values in those with T1D (T1D norms). The participant achieved euglycemia with an HbA1c of 5.5%, mean glucose of 98 [5] mg/dL (median [interquartile range]), 90 [11]% time-in-range 70-180 mg/dL (T1D norms: 1st percentile for all), and low insulin requirements of 0.38 ± 0.03 IU/kg/day (T1D norms: 8th percentile). Seated systolic blood pressure (SBP) was 113 mmHg (T1D norms: 18th percentile), while ambulatory awake SBP was 132 ± 15 mmHg (T1D target: <130 mmHg), blood triglycerides were 69 mg/dL (T1D norms: 34th percentile), low-density lipoprotein was 129 mg/dL (T1D norms: 60th percentile), heart rate was 56 beats/min (T1D norms: >1SD below the mean), carotid-femoral pulse wave velocity was 7.17 m/s (T1D norms: lowest quartile of risk), flow-mediated dilation was 12.8% (T1D norms: >1SD above mean), and cardiac vagal baroreflex gain was 23.5 ms/mmHg (T1D norms: >1SD above mean). Finally, there was no indication of left ventricular diastolic dysfunction from echocardiography. Overall, these data demonstrate below-average CVD risk relative to T1D norms despite concerns regarding the long-term impact of a KD on CVD risk.NEW & NOTEWORTHY Adults with type 1 diabetes (T1D) have a 10-fold higher risk for cardiovascular disease (CVD) compared with the general population. We assessed cardiovascular health metrics in an adult with T1D who presented with a euglycemic HbA1c after following a ketogenic diet for the past 10 years. Despite concerns about the ketogenic diet increasing CVD risk, the participant exhibited below-average CVD risk relative to others with T1D when considering all outcomes together.
Collapse
Affiliation(s)
- Joseph C Watso
- Cardiovascular and Applied Physiology Laboratory, Department of Health, Nutrition, and Food Sciences, Florida State University, Tallahassee, Florida, United States
| | - Austin T Robinson
- Neurovascular Physiology Laboratory, Indiana University, Bloomington, Indiana, United States
| | - Saiful Anuar Bin Singar
- Department of Health, Nutrition, and Food Sciences, Florida State University, Tallahassee, Florida, United States
| | - Jens N Cuba
- Cardiovascular and Applied Physiology Laboratory, Department of Health, Nutrition, and Food Sciences, Florida State University, Tallahassee, Florida, United States
| | - Andrew P Koutnik
- Sansum Diabetes Research Institute, Santa Barbara, California, United States
- Human Healthspan, Resilience, and Performance, Florida Institute for Human and Machine Cognition, Pensacola, Florida, United States
| |
Collapse
|
2
|
Woo J, Whyne EZ, Wright JI, Lehrer HM, Alhalimi TA, Wang T, Saba VC, Dubois SK, Tanaka H, Brown SA, Steinhardt MA. Feasibility and Performance of Hemoglobin A1C Self-Testing During COVID-19 Among African Americans With Type 2 Diabetes. Sci Diabetes Self Manag Care 2022; 48:204-212. [PMID: 35658748 DOI: 10.1177/26350106221100536] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
PURPOSE The purpose of the study was to determine the feasibility of implementing A1C self-testing at home using the A1CNow® Self Check and to compare the accuracy of the A1CNow to a reference standard in African Americans with type 2 diabetes (T2D). METHODS African American adults with T2D were recruited from 13 different churches (N = 123). Phase 1, conducted during the early phase of the COVID-19 pandemic, examined the feasibility of A1C assessment using the A1CNow performed at home by untrained participants. Phase 2, conducted when in-person research resumed, compared A1C values concurrently measured using the A1CNow and the DCA Vantage™ Analyzer (reference standard) collected by research staff at church testing sites. RESULTS In Phase 1, 98.8% of participants successfully completed at least 1 at-home A1C test; the overall failure rate was 24.7%. In Phase 2, the failure rate of staff-performed A1CNow testing was 4.4%. The Bland-Altman plot reveals that A1CNow values were 0.68% lower than DCA values, and the mean differences (A1CNow minus DCA) ranged from -2.6% to 1.2% with a limit of agreement between -1.9% to 0.5%. CONCLUSIONS A1C self-testing is feasible for use in community settings involving African American adults with T2D. The A1CNow Self-Check underestimated A1C values when compared with the reference standard. Ongoing improvements in point-of-care devices have the potential to expand research and clinical care, especially in underserved communities.
Collapse
Affiliation(s)
- Jihun Woo
- Department of Kinesiology and Health Education, College of Education, The University of Texas at Austin, Austin, Texas
| | - Erum Z Whyne
- Department of Kinesiology and Health Education, College of Education, The University of Texas at Austin, Austin, Texas
| | - Jaylen I Wright
- Department of Kinesiology and Health Education, College of Education, The University of Texas at Austin, Austin, Texas
| | - H Matthew Lehrer
- Department of Psychiatry, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Taha A Alhalimi
- Department of Kinesiology and Health Education, College of Education, The University of Texas at Austin, Austin, Texas
| | - Tianyu Wang
- Department of Kinesiology and Health Education, College of Education, The University of Texas at Austin, Austin, Texas
| | - Victoria C Saba
- Department of Kinesiology and Health Education, College of Education, The University of Texas at Austin, Austin, Texas
| | - Susan K Dubois
- Department of Kinesiology and Health Education, College of Education, The University of Texas at Austin, Austin, Texas.,Department of Internal Medicine, Dell Medical School, The University of Texas at Austin, Austin, Texas
| | - Hirofumi Tanaka
- Department of Kinesiology and Health Education, College of Education, The University of Texas at Austin, Austin, Texas
| | - Sharon A Brown
- School of Nursing, The University of Texas at Austin, Austin, Texas
| | - Mary A Steinhardt
- Department of Kinesiology and Health Education, College of Education, The University of Texas at Austin, Austin, Texas
| |
Collapse
|
3
|
Kubiak RW, Kratz M, Motala AA, Galagan S, Govere S, Brown ER, Moosa MYS, Drain PK. Clinic-based diabetes screening at the time of HIV testing and associations with poor clinical outcomes in South Africa: a cohort study. BMC Infect Dis 2021; 21:789. [PMID: 34376173 PMCID: PMC8353828 DOI: 10.1186/s12879-021-06473-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 07/09/2021] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND HIV clinical care programs in high burden settings are uniquely positioned to facilitate diabetes diagnosis, which is a major challenge. However, in sub-Saharan Africa, data on the burden of diabetes among people living with HIV (PLHIV) and its impact on HIV outcomes is sparse. METHODS We enrolled adults presenting for HIV testing at an outpatient clinic in Durban. Those who tested positive for HIV-infection were screened for diabetes using a point-of-care hemoglobin A1c (HbA1c) test. We used log-binomial, Poisson, and Cox proportional hazard models adjusting for confounders to estimate the relationship of diabetes (HbA1c ≥ 6.5%) with the outcomes of HIV viral suppression (< 50 copies/mL) 4-8 months after antiretroviral therapy initiation, retention in care, hospitalization, tuberculosis, and death over 12 months. RESULTS Among 1369 PLHIV, 0.5% (n = 7) reported a prior diabetes diagnosis, 20.6% (95% CI 18.5-22.8%, n = 282) screened positive for pre-diabetes (HbA1c 5.7-6.4%) and 3.5% (95% CI 2.7-4.6%, n = 48) for diabetes. The number needed to screen to identify one new PLHIV with diabetes was 46.5 persons overall and 36.5 restricting to those with BMI ≥ 25 kg/m2. Compared to PLHIV without diabetes, the risk of study outcomes among those with diabetes was not statistically significant, although the adjusted hazard of death was 1.79 (95% CI 0.41-7.87). CONCLUSIONS Diabetes and pre-diabetes were common among adults testing positive for HIV and associated with death. Clinic-based diabetes screening could be targeted to higher risk groups and may improve HIV treatment outcomes.
Collapse
Affiliation(s)
- Rachel W Kubiak
- Department of Epidemiology, Health Sciences Building, University of Washington, Seattle, WA, USA.
| | - Mario Kratz
- Department of Epidemiology, Health Sciences Building, University of Washington, Seattle, WA, USA
- Cancer Prevention Program, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
- Department of Medicine, University of Washington, Seattle, WA, USA
| | - Ayesha A Motala
- Department of Diabetes and Endocrinology, University of KwaZulu-Natal, Durban, South Africa
| | - Sean Galagan
- Department of Global Health, University of Washington, Seattle, WA, USA
| | | | - Elisabeth R Brown
- Statistical Center for HIV/AIDS Research and Prevention, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Mahomed-Yunus S Moosa
- Department of Infectious Diseases, University of KwaZulu-Natal, Durban, South Africa
| | - Paul K Drain
- Department of Epidemiology, Health Sciences Building, University of Washington, Seattle, WA, USA
- Department of Medicine, University of Washington, Seattle, WA, USA
- Department of Global Health, University of Washington, Seattle, WA, USA
| |
Collapse
|
4
|
Schmalz G, Wolf C, Merle C, Kottmann T, Haak R, Ziebolz D. Evaluation of a questionnaire-based diabetes screening concept in German patients with Stage III or IV periodontitis: A practice-based study. J Periodontol 2020; 92:1163-1170. [PMID: 33155276 DOI: 10.1002/jper.20-0297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 09/13/2020] [Accepted: 10/05/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND This practice-based retrospective study evaluated a screening method for diabetes mellitus (DM) in patients with Stage III or IV periodontitis using the FINDRISC questionnaire. METHODS Patients with Stage III or IV periodontitis who received FINDRISC screening in a German private dental practice were recruited. Individuals with positive FINDRISC scores (≥12, FINDRISC+) were referred for diabetological examination. Several general and periodontal findings from the patients' documentation were recorded and analyzed. RESULTS A total of 179 patients (52.65 ± 11.49 years) were included. In DM screening, 24.6% (n = 44) patients were FINDRISC+, including all patients with currently known DM (21 of 21). Of the remaining FINDRISC+ patients, 82.6% (19 of 23) visited their general practitioner, and 63.2% (12 of 19, 7.6% of total cohort) had an HbA1c ≥5.7%. Accordingly, 75% of the FINDRISC+ patients were diabetologically conspicuous (HbA1c ≥ 5.7%), including those with already known DM. Patients with previously unknown DM showed higher mean age, more missing teeth, a higher periodontitis stage (more Stage IV) and more frequently teeth with suppuration compared with the diabetologically inconspicuous individuals (P <0.01). CONCLUSION The FINDRISC questionnaire is appropriate for patients with Stage III or IV periodontitis and can be recommended in dental practice setting.
Collapse
Affiliation(s)
- Gerhard Schmalz
- Department of Cariology, Endodontology and Periodontology, University of Leipzig, Leipzig, Germany
| | | | - Cordula Merle
- Department of Cariology, Endodontology and Periodontology, University of Leipzig, Leipzig, Germany
| | | | - Rainer Haak
- Department of Cariology, Endodontology and Periodontology, University of Leipzig, Leipzig, Germany
| | - Dirk Ziebolz
- Department of Cariology, Endodontology and Periodontology, University of Leipzig, Leipzig, Germany
| |
Collapse
|
5
|
Mimenza-Alvarado AJ, Jiménez-Castillo GA, Yeverino-Castro SG, Barragán-Berlanga AJ, Pérez-Zepeda MU, Ávila-Funes JA, Aguilar-Navarro SG. Effect of poor glycemic control in cognitive performance in the elderly with type 2 diabetes mellitus: The Mexican Health and Aging Study. BMC Geriatr 2020; 20:424. [PMID: 33096995 PMCID: PMC7585218 DOI: 10.1186/s12877-020-01827-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 10/12/2020] [Indexed: 12/17/2022] Open
Abstract
Background Cognitive impairment is twice more frequent in elderly with type 2 diabetes mellitus (DM). This study was conducted to determine the association between glycemic control and cognitive performance among community-dwelling elderly persons in Mexico. Methods Cross-sectional study conducted in individuals aged 60 years or elderly participating in the 2012 Mexican Health and Aging Study. Type 2 DM participants were classified in 3 groups according to their glycated hemoglobin levels (HbA1c): < 7% (intensive control), 7–7.9% (standard control) or ≥ 8% (poor control), and cognitive performance: low (CCCE ≤44 points), intermediate (44.1–59.52 points), or high (≥59.53 points). Multinomial logistic regression models were constructed to determine this association. Results Two hundred sixteen community-dwelling adults aged 60 and older with type 2 diabetes were selected. Subjects in the low cognitive performance group were older (69.7 ± 6.6 vs 65.86 ± 5.18 years, p < .001) and had a lower educational level (2.5 ± 2.6 vs 7.44 ± 4.15 years, p < .000) when compared to the high cognitive performance participants. HbA1c ≥ 8% was associated with having low (Odds Ratio (OR) 3.17, 95% CI 1.17–8.60, p = .024), and intermediate (OR 3.23, 95% CI 1.27–8.20, p = .014) cognitive performance; this trend was not found for HbA1c 7.0–7.9% group. The multinomial regression analysis showed that the presence of HbA1c ≥ 8% (poor glycemic control) was associated with low (OR 3.17, 95% CI = 1.17–8.60, p = .024), and intermediate (OR 3.23, 95% CI = 1.27–8.20, p = .014) cognitive performance. After adjusting for confounding variables. Conclusions Glycemic control with a HbA1c ≥ 8% was associated with worse cognitive performance.
Collapse
Affiliation(s)
- Alberto J Mimenza-Alvarado
- Geriatric Medicine & Neurology Fellowship, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubiran, 14000, Mexico City, Mexico.,Department of Geriatric Medicine, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga 15. Tlalpan, 14000, Mexico City, Mexico
| | - Gilberto A Jiménez-Castillo
- Geriatric Medicine & Neurology Fellowship, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubiran, 14000, Mexico City, Mexico.,Department of Geriatric Medicine, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga 15. Tlalpan, 14000, Mexico City, Mexico.,Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, 64160, Monterrey, Nuevo León, Mexico
| | - Sara G Yeverino-Castro
- Geriatric Medicine & Neurology Fellowship, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubiran, 14000, Mexico City, Mexico
| | - Abel J Barragán-Berlanga
- Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, 64160, Monterrey, Nuevo León, Mexico
| | | | - J Alberto Ávila-Funes
- Univ. Bordeaux, Inserm, Bordeaux Population Health Research Center, UMR 1219, F-33000, Bordeaux, France
| | - Sara G Aguilar-Navarro
- Geriatric Medicine & Neurology Fellowship, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubiran, 14000, Mexico City, Mexico. .,Department of Geriatric Medicine, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga 15. Tlalpan, 14000, Mexico City, Mexico.
| |
Collapse
|
6
|
Beyond Asian-Specific Cutoffs: Gender Effects on the Predictability of Body Mass Index, Waist Circumference, and Waist Circumference to Height Ratio on Hemoglobin A1c. J Racial Ethn Health Disparities 2020; 8:415-421. [PMID: 32542494 DOI: 10.1007/s40615-020-00796-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 06/02/2020] [Accepted: 06/05/2020] [Indexed: 10/24/2022]
Abstract
OBJECTIVES This study examines the gender effect on the associations between body mass index (BMI), waist circumference (WC), and waist circumference to height ratio (WHtR) with hemoglobin A1c (HbA1c) when Asian-specific cutoffs are applied among Asians living in the USA. DESIGN This study used the pooled 2013-2014 and 2015-2016 National Health and Nutrition Examination Survey (NHANES) data to produce a sample of 900 Asians who were non-pregnant and non-Hispanic aged 20-65. Bivariate and general linear regression analyses were conducted based on gender and age group. RESULTS The group variations of BMI, WC, and WHtR all exhibited different patterns between males and females. Among the bivariate correlations with HbA1c, WHtR was the strongest in males and WC was the strongest in females. All three measures performed better in predicting HbA1c among younger Asians. WC predicted more of the variance in HbA1c among females, whereas WHtR predicted more of the variance in HbA1c among males. CONCLUSIONS WC and WHtR are two anthropometric measures that serve as appropriate proxy of HbA1c for gauging the risk of developing type 2 diabetes among Asians living in the USA. They can be easily performed at non-clinical settings and should be used by individuals to monitor their health and be a part of disease prevention.
Collapse
|
7
|
Abstract
Point-of-care test (POCT) HbA1c assays provide rapidly available results for clinical decision-making. Accuracy and precision must be established. Venous blood samples from 300 patients were assayed for HbA1c by a laboratory technician ("laboratory assessment") with the POCT Alere Afinion™ assay and a laboratory (Premier AffinityTM) assay. POCT results from 402 patients' fingerstick samples assayed by nine nontechnician staff ("clinical assessment") were compared with the laboratory assay. The laboratory assessment showed tight correlation (r2 = .977, P < .001) between the assays. Mean absolute and relative differences were 0.01 percentage points and 2.1%, respectively. CVs for the POCT and laboratory assays were <2% and <1%, respectively. The clinical assessment also showed a tight correlation between the assays (r2 = .978, P < .001), with mean absolute and relative differences of 0.2 percentage points and 3.41%, respectively. CV for the POCT assay was <2%. The POCT performed acceptably compared to the laboratory assay under realistic clinical conditions.
Collapse
Affiliation(s)
- David M. Nathan
- Diabetes Center, Massachusetts General Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
- David M. Nathan, MD, MGH Diabetes Center, 50 Staniford St, Ste 340, Boston, MA 02114, USA.
| | - Amanda Griffin
- Diabetes Center, Massachusetts General Hospital, Boston, MA, USA
| | | | - Erica Basque
- Eastern Virginia Medical School, Norfolk, VA, USA
| | - Lily Do
- Diabetes Center, Massachusetts General Hospital, Boston, MA, USA
| | - Barbara Steiner
- Diabetes Center, Massachusetts General Hospital, Boston, MA, USA
| |
Collapse
|
8
|
Glick M, Greenberg BL. The Role of Oral Health Care Professionals in Providing Medical Services. J Dent Educ 2017; 81:eS180-eS185. [DOI: 10.21815/jde.017.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 02/17/2017] [Indexed: 12/19/2022]
Affiliation(s)
| | - Barbara L. Greenberg
- Department of Epidemiology and Community Health; School of Health Sciences and Practice, New York Medical College
| |
Collapse
|
9
|
α-2-macroglobulin in saliva is associated with glycemic control in patients with type 2 diabetes mellitus. DISEASE MARKERS 2015; 2015:128653. [PMID: 25821337 PMCID: PMC4363888 DOI: 10.1155/2015/128653] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Revised: 02/09/2015] [Accepted: 02/09/2015] [Indexed: 11/25/2022]
Abstract
Background. Subjects with type 2 diabetes mellitus (DM2) require an adequate glycemic control to avoid diabetic complications. Currently, saliva biomarkers are used as a diagnostic tool and can be indicative of the degree of progression and control of various diseases. Several studies indicate that α-2-macroglobulin levels are elevated in diabetic patients. Methods. 120 subjects with DM2 were enrolled and classified into two groups according to their glycemic control (percentage of glycated hemoglobin-A1c (HbA1c), <7% adequate glycemic control group; >7% inadequate glycemic control group). The relationship between α-2-macroglobulin levels from saliva samples and HbA1c was subsequently evaluated. Results. We found a positive correlation between α-2-macroglobulin and HbA1c (r = 0.778 and P < 0.0001). Area under the receivers operating characteristic (ROC) curve of α-2-macroglobulin indicated a positive discrimination threshold of α-2-macroglobulin (AUC = 0.903, CI 95%: 0.847–0.959, P < 0.0001) to diagnose glycemic control. Conclusions. Our data strongly suggest that the level of saliva α-2-macroglobulin is an indicator for the degree of glycemic control in diabetic patients and represents a promising alternative method to evaluate this parameter.
Collapse
|