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1.
BMC Med Res Methodol ; 24(1): 126, 2024 Jun 03.
Article in English | MEDLINE | ID: mdl-38831294

ABSTRACT

BACKGROUND: A growing number of older adults (ages 65+) live with Type 1 diabetes. Simultaneously, technologies such as continuous glucose monitoring (CGM) have become standard of care. There is thus a need to understand better the complex dynamics that promote use of CGM (and other care innovations) over time in this age group. Our aim was to adapt methods from systems thinking, specifically a participatory approach to system dynamics modeling called group model building (GMB), to model the complex experiences that may underlie different trajectories of CGM use among this population. Herein, we report on the feasibility, strengths, and limitations of this methodology. METHODS: We conducted a series of GMB workshops and validation interviews to collect data in the form of questionnaires, diagrams, and recordings of group discussion. Data were integrated into a conceptual diagram of the "system" of factors associated with uptake and use of CGM over time. We evaluate the feasibility of each aspect of the study, including the teaching of systems thinking to older adult participants. We collected participant feedback on positive aspects of their experiences and areas for improvement. RESULTS: We completed nine GMB workshops with older adults and their caregivers (N = 33). Each three-hour in-person workshop comprised: (1) questionnaires; (2) the GMB session, including both didactic components and structured activities; and (3) a brief focus group discussion. Within the GMB session, individual drawing activities proved to be the most challenging for participants, while group activities and discussion of relevant dynamics over time for illustrative (i.e., realistic but not real) patients yielded rich engagement and sufficient information for system diagramming. Study participants liked the opportunity to share experiences with peers, learning and enhancing their knowledge, peer support, age-specific discussions, the workshop pace and structure, and the systems thinking framework. Participants gave mixed feedback on the workshop duration. CONCLUSIONS: The study demonstrates preliminary feasibility, acceptability, and the value of GMB for engaging older adults about key determinants of complex health behaviors over time. To our knowledge, few studies have extended participatory systems science methods to older adult stakeholders. Future studies may utilize this methodology to inform novel approaches for supporting health across the lifespan.


Subject(s)
Blood Glucose Self-Monitoring , Diabetes Mellitus, Type 1 , Humans , Diabetes Mellitus, Type 1/therapy , Diabetes Mellitus, Type 1/psychology , Aged , Female , Male , Blood Glucose Self-Monitoring/methods , Systems Analysis , Surveys and Questionnaires , Feasibility Studies
2.
BMJ Open ; 14(6): e088737, 2024 Jun 10.
Article in English | MEDLINE | ID: mdl-38858140

ABSTRACT

INTRODUCTION: The growth and complexity of diabetes are exceeding the capacity of family physicians, resulting in the demand for community-based, interprofessional, primary care-led transition clinics. The Primary Care Diabetes Support Programme (PCDSP) in London, Ontario, is an innovative approach to diabetes care for high-risk populations, such as medically or socially complex and unattached patients. In this study, we will employ a quadruple-aim approach to evaluate the health system impacts of the PCDSP. METHODS AND ANALYSIS: We will use multiple methods through a convergent parallel design in this project across five unique studies: a case study, a patient study, a provider study, a complications study and a cost-effectiveness study. The project will be conducted in a dedicated stand-alone clinic specialising in chronic disease management, specifically focusing on diabetes care. Participants will include clinic staff, administrators, family physicians, specialists and patients with type 1 or type 2 diabetes who received care at the clinic between 2011 and 2023. The project design will define the intervention, support replication at other sites or for other chronic diseases and address each of the quadruple aims and equity. Following the execution of the five individual studies, we will build a business case by integrating the results. Data will be analysed using both qualitative (content analysis and thematic analysis) and quantitative techniques (descriptive statistics and multiple logistic regression). ETHICS AND DISSEMINATION: We received approval from the research ethics boards at Western University (reference ID: 2023-1 21 766; 2023-1 22 326) and Lawson Health Research Institute (reference ID: R-23-202). A privacy review was completed by St. Joseph's Healthcare Corporation. The findings will be shared among PCDSP staff and patients, stakeholders, academic researchers and the public through stakeholder sessions, conferences, peer-reviewed publications, infographics, posters, media interviews, social media and online discussions. For the patient and provider study, all participants will be asked to provide consent and are free to withdraw from the study, without penalty, until the data are combined. Participants will not be identified in any report or presentation except in the case study, for which, given the number of PCDSP providers, we will seek explicit consent to identify them.


Subject(s)
Diabetes Mellitus, Type 2 , Primary Health Care , Humans , Ontario , Primary Health Care/organization & administration , Diabetes Mellitus, Type 2/therapy , Research Design , Cost-Benefit Analysis , Diabetes Mellitus, Type 1/therapy , Diabetes Mellitus/therapy
3.
J Prim Care Community Health ; 15: 21501319241259685, 2024.
Article in English | MEDLINE | ID: mdl-38840558

ABSTRACT

OBJECTIVE: There has been a trend toward hospital systems and insurers acquiring privately owned physician practices and subsequently converting them into vertically integrated practices. The purpose of this study is to observe whether this change in ownership of a medical practice influences adherence to clinical guidelines for the management of type 1 and type 2 diabetes. METHODS: This is an observational study using pooled cross-sectional data (2014-2016 and 2018-2019) from the National Ambulatory Medical Care Survey, a nationally representative probability sample of US office-based physician visits. A total of 7499 chronic routine follow ups and preventative care visits to non-integrated (solo and group physician practices) and integrated practices were analyzed to see whether guideline concordant care was provided. Measures included 7 services that are recommended annually for individuals with type 1 and type 2 diabetes (HbA1c, lipid panel, serum creatinine, depression screening, influenza immunization, foot examination, and BMI). RESULTS: Compared to non-integrated physician practices, vertically integrated practices had higher rates of hemoglobin A1C testing (odds ratio 1.58 [95% CI 1.07-2.33], P < .05), serum creatine testing (odds ratio 1.53 [95% CI 1.02-2.29], P < .05), foot examinations (odds ratio 2.03 [95% CI 0.98-4.22], P = .058), and BMI measuring (odds ratio 1.54 [95% CI 0.99-2.39], P = .054). There was no significant difference in lipid panel testing, depression screenings, or influenza immunizations. CONCLUSIONS: Our results show that integrated medical practices have a higher adherence to diabetes practice guidelines than non-integrated practices. However, rates of services provided regardless of ownership were low.


Subject(s)
Diabetes Mellitus, Type 2 , Guideline Adherence , Ownership , Humans , Guideline Adherence/statistics & numerical data , Cross-Sectional Studies , Diabetes Mellitus, Type 2/therapy , Female , Male , Middle Aged , Adult , United States , Delivery of Health Care, Integrated/standards , Delivery of Health Care, Integrated/organization & administration , Practice Guidelines as Topic , Glycated Hemoglobin/analysis , Diabetes Mellitus, Type 1/therapy , Aged , Health Care Surveys
4.
Diabetes Res Clin Pract ; 212: 111723, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38830484

ABSTRACT

Applicability of smartphone-based digital health in diabetes management still face challenges due tolow user retention or engagement. Thus, this systematic and meta-analysis aimed to estimate the dropout rate from the clinical trials. Search of literature was performedon 4 September 2023 through various databases (PubMed, Scilit, Scopus, Embase, and Web of Science). Those reporting clinical trials of smartphone apps for diabetic controls (either type 1 or type 2 diabetes mellitus) were screened and selected in accordance with PRISMA guideline. Of 5,429 identified records, as many as 36 studies were found eligible with a total of 3,327 patients in the intervention group. The overall dropout rate was 29.6 % (95 %CI: 25 %-34.3 %) with high heterogeneity (p-Het < 0.001;I2 = 84.84 %). Sample size, intervention duration, patients' age and gender, and cultural adaptation on the app appeared to be non-significant moderators (p > 0.05). In sub-group levels, notably high dropout rates were observed in studies performing cultural adaptation (34.6 %) and conducted in high-income countries (31.9 %). Given the high dropout rate, the engagement level toward diabetic management apps in real-world setting is expected to be low. High heterogeneity in this study, however, requires careful interpretation of the foregoing results. PROSPERO: CRD42023460365 (14 September 2023).


Subject(s)
Mobile Applications , Patient Dropouts , Smartphone , Humans , Mobile Applications/statistics & numerical data , Patient Dropouts/statistics & numerical data , Diabetes Mellitus, Type 2/therapy , Clinical Trials as Topic , Diabetes Mellitus, Type 1/therapy , Diabetes Mellitus/therapy
5.
Sci Rep ; 14(1): 13403, 2024 Jun 11.
Article in English | MEDLINE | ID: mdl-38862532

ABSTRACT

Type 1 diabetes mellitus (T1DM) is a major problem worldwide that affects the quality of life, well-being of patients and their families. This study aimed to determine the relationship between the cost of illness and quality of life among patients with T1DM. A concurrent, parallel, mixed-method study of 113 adolescents with T1DM registered in public and private hospitals in the Mysore district was conducted by obtaining data related to the cost of illness and quality of life using a validated Diabetes-Specific Quality of Life (DSQoL) questionnaire. Thematic analysis was used to identify the themes. There was a significant association amonghealth insurance status, treatment facility type, catastrophic health expenditure (CHE), and cost of illness. The CHE proportion was32.7%. Financial sources for treatment were met primarily by borrowing money with interest (58 patients, 51.3%), followed by individualincome (40 patients, 35.3%), contributions from friends and relatives (10 patients, 8.8%), and selling of assets (5 patients, 4.4%). The monthly health expenditures of approximately 22 (19.46%) households were greater than their monthly incomes. There was a positive correlation (rvalue of 0.979) between the cost of treatment and the DSQoL score, and this correlation was statistically significant, with a p value < 0.001. The higher theDSQoL score was, the worse the quality of life and the worse the well-being of T1DM patients. Three themes were identified: the impact of financial cost on family coping, the impact of financial cost on seeking care and the emotional burden of financial cost. There was a statistically significant positive correlation between the cost of treatment and the DSQoLscore. Adolescents with T1DM who had greatertreatment costs had worseDSQoL, and significantly lower health expenses were observed among adolescentswho had health insurance. Cost of illness acts as a barrier to treatment and placesa burden on patients and their families.


Subject(s)
Cost of Illness , Diabetes Mellitus, Type 1 , Health Expenditures , Quality of Life , Humans , Diabetes Mellitus, Type 1/economics , Diabetes Mellitus, Type 1/psychology , Diabetes Mellitus, Type 1/therapy , Adolescent , Male , Female , Surveys and Questionnaires , Child
6.
Sci Transl Med ; 16(746): eadn2404, 2024 May 08.
Article in English | MEDLINE | ID: mdl-38718135

ABSTRACT

CD4+CD25hiCD127lo/-FOXP3+ regulatory T cells (Tregs) play a key role in preventing autoimmunity. In autoimmune type 1 diabetes (T1D), adoptive transfer of autologous polyclonal Tregs has been shown to be safe in adults in phase 1 clinical trials. We explored factors contributing to efficacy of autologous polyclonal expanded Tregs (expTregs) in a randomized phase 2 multi-center, double-blind, clinical trial (Sanford/Lisata Therapeutics T-Rex phase 2 trial, ClinicalTrials.gov NCT02691247). One hundred ten treated children and adolescents with new-onset T1D were randomized 1:1:1 to high-dose (20 × 106 cells/kilogram) or low-dose (1 × 106 cells/kilogram) treatments or to matching placebo. Cytometry as well as bulk and single-cell RNA sequencing were performed on selected expTregs and peripheral blood samples from participants. The single doses of expTregs were safe but did not prevent decline in residual ß cell function over 1 year compared to placebo (P = 0.94 low dose, P = 0.21 high dose), regardless of age or baseline C-peptide. ExpTregs were highly activated and suppressive in vitro. A transient increase of activated memory Tregs was detectable 1 week after infusion in the high-dose cohort, suggesting effective transfer of expTregs. However, the in vitro fold expansion of expTregs varied across participants, even when accounting for age, and lower fold expansion and its associated gene signature were linked with better C-peptide preservation regardless of Treg dose. These results suggest that a single dose of polyclonal expTregs does not alter progression in T1D; instead, Treg quality may be an important factor.


Subject(s)
Diabetes Mellitus, Type 1 , T-Lymphocytes, Regulatory , Humans , Diabetes Mellitus, Type 1/immunology , Diabetes Mellitus, Type 1/therapy , T-Lymphocytes, Regulatory/immunology , Child , Adolescent , Male , Female , Double-Blind Method , Child, Preschool , Transplantation, Autologous
7.
Expert Rev Endocrinol Metab ; 19(3): 217-227, 2024 May.
Article in English | MEDLINE | ID: mdl-38693782

ABSTRACT

INTRODUCTION: Type 1 diabetes (T1D) mellitus is an autoimmune disease in which immune cells, predominantly effector T cells, destroy insulin-secreting beta-cells. Beta-cell destruction led to various consequences ranging from retinopathy and nephropathy to neuropathy. Different strategies have been developed to achieve normoglycemia, including exogenous glucose compensation, whole pancreas transplantation, islet transplantation, and beta-cell replacement. AREAS COVERED: The last two decades of experience have shown that indigenous glucose compensation through beta-cell regeneration and protection is a peerless method for T1D therapy. Tremendous studies have tried to find an unlimited source for beta-cell regeneration, on the one hand, and beta-cell protection against immune attack, on the other hand. Recent advances in stem cell technology, gene editing methods, and immune modulation approaches provide a unique opportunity for both beta-cell regeneration and protection. EXPERT OPINION: Pluripotent stem cell differentiation into the beta-cell is considered an unlimited source for beta-cell regeneration. Devising engineered pancreas-specific regulatory T cells using Chimeric Antigen Receptor (CAR) technology potentiates an effective immune tolerance induction for beta-cell protection. Beta-cell regeneration using pluripotent stem cells and beta-cell protection using pancreas-specific engineered regulatory T cells promises to develop a curative protocol in T1D.


Subject(s)
Diabetes Mellitus, Type 1 , Insulin-Secreting Cells , Islets of Langerhans Transplantation , Regeneration , Humans , Diabetes Mellitus, Type 1/therapy , Diabetes Mellitus, Type 1/immunology , Insulin-Secreting Cells/physiology , Islets of Langerhans Transplantation/methods , Animals , Pluripotent Stem Cells , Pancreas Transplantation/methods
8.
Tunis Med ; 102(4): 205-211, 2024 Apr 05.
Article in English | MEDLINE | ID: mdl-38746959

ABSTRACT

AIM: To assess the effect of diabetes self-management education (DSME) on health related quality of life (HRQoL) of Tunisian children/adolescents with type 1 diabetes mellitus and their parents. METHODS: This monocentral study used a randomized controlled trial design, during five-month intervention and five-month follow-up and including 110 patients (54 in the DSME intervention group and 56 in the Individual Education by Pediatrician (IEP) control group) and their parents. Pediatric Generic Core Quality-of-Life Inventory 4.0-Scale (PedsQL4.0) evaluated HRQoL. RESULTS: At baseline, both groups had similar clinical features and PedsQL4.0 scores (p>0.05). In DSME, clinical outcomes were significantly improved from baseline to follow-up (p<0.001), while in the IEP group, which received no intervention, these outcomes remained unchanged. During follow-up, DSME showed higher PedsQL4.0 scores in parents' proxy-report and children/adolescents self-report (p<0.001). According to parents' proxy-report, PedsQL4.0 scores were significantly higher during follow-up compared to baseline in DSME (p<0.001) while they remained the same in IEP (p>0.05). DSME had higher percentage of change in the PedsQL4.0 scores than IEP (p<0.01). The median change varied from -5.01% to 0% vs 5.41% to 36.36% in IEP and DSME, respectively. CONCLUSION: Encouraging healthcare professionals to incorporate these interventions could enhance the HRQoL of diabetic children and bolster their self-esteem.


Subject(s)
Diabetes Mellitus, Type 1 , Parents , Patient Education as Topic , Quality of Life , Self-Management , Humans , Diabetes Mellitus, Type 1/therapy , Diabetes Mellitus, Type 1/psychology , Tunisia , Child , Male , Female , Parents/psychology , Self-Management/education , Self-Management/methods , Self-Management/psychology , Adolescent , Patient Education as Topic/methods , Follow-Up Studies
9.
BMJ Open ; 14(5): e075559, 2024 May 06.
Article in English | MEDLINE | ID: mdl-38719287

ABSTRACT

OBJECTIVES: The purpose of this qualitative study is to describe the acceptability and appropriateness of continuous glucose monitoring (CGM) in people living with type 1 diabetes (PLWT1D) at first-level (district) hospitals in Malawi. DESIGN: We conducted semistructured qualitative interviews among PLWT1D and healthcare providers participating in the study. Standardised interview guides elicited perspectives on the appropriateness and acceptability of CGM use for PLWT1D and their providers, and provider perspectives on the effectiveness of CGM use in Malawi. Data were coded using Dedoose software and analysed using a thematic approach. SETTING: First-level hospitals in Neno district, Malawi. PARTICIPANTS: Participants were part of a randomised controlled trial focused on CGM at first-level hospitals in Neno district, Malawi. Pretrial and post-trial interviews were conducted for participants in the CGM and usual care arms, and one set of interviews was conducted with providers. RESULTS: Eleven PLWT1D recruited for the CGM randomised controlled trial and five healthcare providers who provided care to participants with T1D were included. Nine PLWT1D were interviewed twice, two were interviewed once. Of the 11 participants with T1D, six were from the CGM arm and five were in usual care arm. Key themes emerged regarding the appropriateness and effectiveness of CGM use in lower resource setting. The four main themes were (a) patient provider relationship, (b) stigma and psychosocial support, (c) device usage and (d) clinical management. CONCLUSIONS: Participants and healthcare providers reported that CGM use was appropriate and acceptable in the study setting, although the need to support it with health education sessions was highlighted. This research supports the use of CGM as a component of personalised diabetes treatment for PLWT1D in resource constraint settings. TRIAL REGISTRATION NUMBER: PACTR202102832069874; Post-results.


Subject(s)
Blood Glucose Self-Monitoring , Diabetes Mellitus, Type 1 , Qualitative Research , Humans , Malawi , Diabetes Mellitus, Type 1/blood , Diabetes Mellitus, Type 1/therapy , Diabetes Mellitus, Type 1/psychology , Male , Female , Adult , Patient Acceptance of Health Care , Middle Aged , Blood Glucose/analysis , Interviews as Topic , Hospitals, Rural , Hospitals, District , Continuous Glucose Monitoring
11.
Cells ; 13(10)2024 May 13.
Article in English | MEDLINE | ID: mdl-38786050

ABSTRACT

Allogeneic islet transplantation has become a standard therapy for unstable type 1 diabetes. However, considering the large number of type 1 diabetic patients, the shortage of donors is a serious issue. To address this issue, clinical islet xenotransplantation is conducted. The first clinical islet xenotransplantation was performed by a Swedish team using fetal pancreatic tissue. Thereafter, clinical trials of islet xenotransplantation were conducted in New Zealand, Russia, Mexico, Argentina, and China using neonatal pig islets. In clinical trials, fetal or neonatal pancreata are used because of the established reliable islet isolation methods. These trials demonstrate the method's safety and efficacy. Currently, the limited number of source animal facilities is a problem in terms of promoting islet xenotransplantation. This limitation is due to the high cost of source animal facilities and the uncertain future of xenotransplantation. In the United States, the first xenogeneic heart transplantation has been performed, which could promote xenotransplantation. In Japan, to enhance xenotransplantation, the 'Medical Porcine Development Association' has been established. We hope that xenogeneic transplantation will become a clinical reality, serving to address the shortage of donors.


Subject(s)
Islets of Langerhans Transplantation , Transplantation, Heterologous , Islets of Langerhans Transplantation/methods , Animals , Humans , Graft Rejection , Swine , Treatment Outcome , Diabetes Mellitus, Type 1/surgery , Diabetes Mellitus, Type 1/therapy , Clinical Trials as Topic , Islets of Langerhans
13.
PLoS One ; 19(5): e0303448, 2024.
Article in English | MEDLINE | ID: mdl-38776307

ABSTRACT

INTRODUCTION: Individuals with type 1 diabetes (T1D) experience a complex set of alterations to skeletal muscle metabolic, neuromuscular, and vascular health; collectively referred to as diabetic myopathy. While the full scope of diabetic myopathy is still being elucidated, evidence suggests that even when individuals with T1D are physically active, indices of myopathy still exist. As such, there is a question if adherence to current physical activity guidelines elicits improvements in skeletal muscle health indices similarly between individuals with and without T1D. The objectives of this trial are to: 1) compare baseline differences in skeletal muscle health between adults with and without T1D, 2) examine the association between participation in a home-based exercise program, detraining, and retraining, with changes in skeletal muscle health, and 3) examine the roles of age and sex on these associations. METHODS AND ANALYSIS: This will be a prospective interventional trial. Younger (18-30 years) and older (45-65 years) males and females with T1D and matched individuals without T1D will engage in a four-phase, 18-week study sequentially consisting of a one-week lead-in period, 12-week exercise training program, one-week detraining period, and four-week retraining period. The exercise program will consist of aerobic and resistance exercise based on current guidelines set by Diabetes Canada. Metabolic, neuromuscular, and vascular outcome measures will be assessed four times: at baseline, post-exercise program, post-detraining, and post-retraining. Differences in baseline metrics between those with and without T1D will be examined with independent sample t-tests, and with two-way analyses of variance for age- and sex-stratified analyses. Changes across the duration of the study will be examined using mixed-model analyses. DISSEMINATION: Findings from this research will be shared locally and internationally with research participants, clinicians, diabetes educators, and patient advocacy organizations via in-person presentations, social media, and scientific fora. TRIAL REGISTRATION NUMBER: NCT05740514.


Subject(s)
Diabetes Mellitus, Type 1 , Exercise , Muscle, Skeletal , Humans , Diabetes Mellitus, Type 1/therapy , Diabetes Mellitus, Type 1/physiopathology , Male , Female , Muscle, Skeletal/physiopathology , Adult , Middle Aged , Prospective Studies , Adolescent , Aged , Exercise/physiology , Young Adult , Exercise Therapy/methods
14.
Pediatr Med Chir ; 46(1)2024 May 31.
Article in English | MEDLINE | ID: mdl-38819381

ABSTRACT

The mother is traditionally the primary caregiver for the child, and uncertainty is a major source of psychological distress for parents of sick children. As a result, the current study sought to investigate the impact of an educational program on illness uncertainty in mothers of children with insulin-dependent diabetes mellitus (IDDM). This is a quasi-experimental study with a pretest-posttest design, involving 40 mothers of children with IDDM. After visiting the research site and recruiting eligible mothers, the researcher used the purposive sampling method to randomly assign them to one of two intervention and control groups. Taking into account their needs and conditions, mothers were scheduled for at least three sessions, with a 30-minute interval every other day. The data analysis revealed no significant differences between the two groups in terms of child age and gender, mother age and education level, number of children, and duration of diabetes. There was a significant difference in the total score of uncertainty, total score of ambiguity, lack of clarity, lack of information, unpredictability, and their dimensions between mothers of diabetic children before and after the intervention (P=0.02). Based on the findings, it is recommended that the educational needs of children and their mothers be assessed upon admission and that educational content be prepared and taught accordingly, thereby helping to reduce illness uncertainty in mothers.


Subject(s)
Diabetes Mellitus, Type 1 , Mothers , Humans , Diabetes Mellitus, Type 1/psychology , Diabetes Mellitus, Type 1/therapy , Mothers/psychology , Uncertainty , Female , Adult , Male , Child , Child, Preschool
15.
Front Endocrinol (Lausanne) ; 15: 1380443, 2024.
Article in English | MEDLINE | ID: mdl-38800472

ABSTRACT

Objective: This meta-analysis includes the systematic literature review and meta-analysis involving clinical trials to assess the efficacy and safety of mesenchymal stem cell (MSC) transplantation for treating T1DM and T2DM. Methods: We searched PubMed, ScienceDirect, Web of Science, clinicaltrials.gov, and Cochrane Library for "published" research from their inception until November 2023. Two researchers independently reviewed the studies' inclusion and exclusion criteria. Our meta-analysis included 13 studies on MSC treatment for diabetes. Results: The MSC-treated group had a significantly lower HbA1c at the last follow-up compared to the baseline (MD: 0.95, 95% CI: 0.33 to 1.57, P-value: 0.003< 0.05), their insulin requirement was significantly lower (MD: 0.19, 95% CI: 0.07 to 0.31, P-value: 0.002< 0.05), the level of FBG with MSC transplantation significantly dropped compared to baseline (MD: 1.78, 95% CI: -1.02 to 4.58, P-value: 0.212), the FPG level of the MSC-treated group was significantly lower (MD: -0.77, 95% CI: -2.36 to 0.81, P-value: 0.339 > 0.05), and the fasting C-peptide level of the MSC-treated group was slightly high (MD: -0.02, 95% CI: -0.07 to 0.02, P-value: 0.231 > 0.05). Conclusion: The transplantation of MSCs has been found to positively impact both types of diabetes mellitus without signs of apparent adverse effects.


Subject(s)
Mesenchymal Stem Cell Transplantation , Humans , Mesenchymal Stem Cell Transplantation/methods , Diabetes Mellitus, Type 2/therapy , Diabetes Mellitus, Type 1/therapy , Treatment Outcome , Mesenchymal Stem Cells/cytology , Diabetes Mellitus/therapy
16.
Diabetes Res Clin Pract ; 212: 111719, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38789009

ABSTRACT

AIMS: We assessed association between how teens with type 1 diabetes (T1D) perceived a text-messaging (TM) reminder system to check glucose levels and how their perceptions related to their responsiveness to TM reminders to check glucose levels. METHODS: Teens received TM reminders 1-4 times daily to check glucose levels and to reply with the result. Qualitative assessments were performed quarterly. Teens were categorized by perceptions expressed at the majority of the visits and their TM responsiveness over 18 months. RESULTS: There were 135 teens (51 % male), with a mean age of 14.8 ± 1.2 years, receiving TM reminders. Distribution of participants' perceptions was 37 % positive (POS), 35 % neutral (with both positive and negative responses (POS/NEG)), and 28 % negative (NEG). Teens with POS perceptions about TM reminders were more likely to respond with a glucose value to the TM reminders than teens with NEG or POS/NEG perceptions (p = 0.002). Youth with POS perceptions and TM responsiveness on ≥ 50 % of days had an 0.81 % improvement in their HbA1c (p = 0.004) over 18 months. CONCLUSIONS: Teens with POS perceptions to TM reminders were likely to respond and their responsiveness yielded glycemic benefit, suggesting need to consider opinions of teens with T1D to maximize their intervention engagement and resulting benefits.


Subject(s)
Blood Glucose Self-Monitoring , Blood Glucose , Diabetes Mellitus, Type 1 , Reminder Systems , Self Care , Text Messaging , Humans , Diabetes Mellitus, Type 1/blood , Diabetes Mellitus, Type 1/psychology , Diabetes Mellitus, Type 1/therapy , Adolescent , Female , Male , Blood Glucose Self-Monitoring/psychology , Blood Glucose/analysis , Blood Glucose/metabolism , Perception , Glycated Hemoglobin/analysis , Glycated Hemoglobin/metabolism
17.
Front Immunol ; 15: 1384406, 2024.
Article in English | MEDLINE | ID: mdl-38596681

ABSTRACT

Introduction: The autoimmune response in type 1 diabetes (T1D), in which the beta cells expressing aberrant or modified proteins are killed, resembles an effective antitumor response. Defective ribosomal protein products in tumors are targets of the anti-tumor immune response that is unleashed by immune checkpoint inhibitor (ICI) treatment in cancer patients. We recently described a defective ribosomal product of the insulin gene (INS-DRiP) that is expressed in stressed beta cells and targeted by diabetogenic T cells. T1D patient-derived INS-DRiP specific T cells can kill beta cells and are present in the insulitic lesion. T cells reactive to INS-DRiP epitopes are part of the normal T cell repertoire and are believed to be kept in check by immune regulation without causing autoimmunity. Method: T cell autoreactivity was tested using a combinatorial HLA multimer technology measuring a range of epitopes of islet autoantigens and neoantigen INS-DRiP. INS-DRiP expression in human pancreas and insulinoma sections was tested by immunohistochemistry. Results: Here we report the induction of islet autoimmunity to INS-DRiP and diabetes after ICI treatment and successful tumor remission. Following ICI treatment, T cells of the cancer patient were primed against INS-DRiP among other diabetogenic antigens, while there was no sign of autoimmunity to this neoantigen before ICI treatment. Next, we demonstrated the expression of INS-DRiP as neoantigen in both pancreatic islets and insulinoma by staining with a monoclonal antibody to INS-DRiP. Discussion: These results bridge cancer and T1D as two sides of the same coin and point to neoantigen expression in normal islets and insulinoma that may serve as target of both islet autoimmunity and tumor-related autoimmunity.


Subject(s)
Diabetes Mellitus, Type 1 , Insulinoma , Pancreatic Neoplasms , Humans , Diabetes Mellitus, Type 1/genetics , Diabetes Mellitus, Type 1/therapy , Autoimmunity/genetics , Insulinoma/genetics , Insulinoma/therapy , Insulinoma/complications , Autoantigens , Insulin , Epitopes , Immunotherapy/methods
19.
JAMA Netw Open ; 7(4): e245656, 2024 Apr 01.
Article in English | MEDLINE | ID: mdl-38578636

ABSTRACT

Importance: Youths with type 2 diabetes are at higher risk for complications compared with peers with type 1 diabetes, though few studies have evaluated differences in access to specialty care. Objective: To compare claims with diabetes specialists for youths with type 1 vs type 2 diabetes and the association between specialist claims with multidisciplinary and acute care utilization. Design, Setting, and Participants: This cross-sectional study used Optum Clinformatics Data Mart commercial claims. Individuals included in the study were youths younger than 19 years with type 1 or 2 diabetes as determined by a validated algorithm and prescription claims. Data were collected for youths with at least 80% enrollment in a commercial health plan from December 1, 2018, to December 31, 2019. Statistical analysis was performed from September 2022 to January 2024. Main Outcomes and Measures: The primary outcome was the number of ambulatory claims from an endocrine and/or diabetes physician or advanced practice clinician associated with a diabetes diagnosis code; secondary outcomes included multidisciplinary and acute care claims. Results: Claims were analyzed for 4772 youths (mean [SD] age, 13.6 [3.7] years; 4300 [90.1%] type 1 diabetes; 472 [9.9%] type 2 diabetes; 2465 [51.7%] male; 128 [2.7%] Asian, 303 [6.4] Black or African American, 429 [9.0%] Hispanic or Latino, 3366 [70.5%] non-Hispanic White, and 546 [11.4%] unknown race and ethnicity). Specialist claims were lower in type 2 compared with type 1 diabetes (incidence rate ratio [IRR], 0.61 [95% CI, 0.52-0.72]; P < .001) in propensity score-weighted analyses. The presence of a comorbidity was associated with increased specialist claims for type 1 diabetes (IRR, 1.07 [95% CI, 1.03-1.10]) and decreased claims for type 2 diabetes (IRR, 0.77 [95% CI, 0.67-0.87]). Pooling diagnosis groups and adjusted for covariates, each additional specialist claim was associated with increased odds of a claim with a diabetes care and education specialist (odds ratio [OR], 1.31 [95% CI, 1.25-1.36]), dietitian (OR, 1.14 [95% CI, 1.09-1.19]), and behavioral health clinician (OR, 1.16 [95% CI, 1.12-1.20]). For acute care claims, each additional specialist claim was associated with increased odds of admission (OR, 1.17 [95% CI, 1.11-1.24]) but not for emergency claims (OR, 1.03 [95% CI, 0.98-1.82]). Conclusions and Relevance: This cross-sectional study found that youths with type 2 diabetes were significantly less likely to have specialist claims despite insurance coverage, indicating other barriers to care, which may include medical complexity. Access to diabetes specialists influences engagement with multidisciplinary services. The association between increasing ambulatory clinician services and admissions suggests high utilization by a subgroup of patients at greater risk for poor outcomes.


Subject(s)
Diabetes Mellitus, Type 1 , Diabetes Mellitus, Type 2 , Humans , Male , Adolescent , Female , Diabetes Mellitus, Type 2/epidemiology , Diabetes Mellitus, Type 2/therapy , Diabetes Mellitus, Type 2/complications , Diabetes Mellitus, Type 1/epidemiology , Diabetes Mellitus, Type 1/therapy , Diabetes Mellitus, Type 1/complications , Cross-Sectional Studies , Retrospective Studies , Ethnicity
20.
Afr J Prim Health Care Fam Med ; 16(1): e1-e16, 2024 Mar 15.
Article in English | MEDLINE | ID: mdl-38572859

ABSTRACT

BACKGROUND:  Increasing chronic diseases challenges the health systems of low- and middle-income countries, including Cameroon. Type 1 diabetes (T1D), among the most common chronic diseases in children, poses particular care delivery challenges. AIM:  We examined social representations of patients' roles and implementation of T1D care among political decision-makers, healthcare providers and patients within families. SETTING:  The study was conducted in Yaoundé, Cameroon. METHODS:  Eighty-two individuals were included in the study. The authors conducted semi-structured interviews with policy makers (n = 5), healthcare professionals (n = 7) and patients 'parents (n = 20). Questionnaires were administered to paediatric patients with T1D (n = 50). The authors also observed care delivery at a referral hospital and at a T1D-focused non-governmental organisation over 15 days. Data were analysed using thematic content analysis and descriptive statistics. RESULTS:  Cameroonian health policy portrays patients with T1D as passive recipients of care. While many practitioners recognised the complex social and economic determinants of adherence to T1D care, in practice interactions focused on specific biomedical issues and offered brief guidance. Cultural barriers and policy implementation challenges prevent patients and their families from being fully active participants in care. Parents and children prefer an ongoing relationship with a single clinician and interactions with other patients and families. CONCLUSION:  Patients and families mobilise experience and lay knowledge to complement biomedical knowledge, but top-down policy and clinical practice limit their active engagement in T1D care.Contribution: Children with T1D and their families, policy makers, healthcare professionals, and civil society have new opportunities to contribute to person-centred care, as advocated by the Sustainable Development Goals.


Subject(s)
Diabetes Mellitus, Type 1 , Female , Humans , Child , Diabetes Mellitus, Type 1/therapy , Cameroon , Delivery of Health Care , Health Policy , Chronic Disease
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