| 1. |
- Davies, Lindsay C., et al.
(författare)
-
Type 1 Diabetes Mellitus Donor Mesenchymal. Stromal Cells Exhibit Comparable Potency to Healthy Controls In Vitro
- 2016
-
Ingår i: Stem Cells Translational Medicine. - : Oxford University Press (OUP). - 2157-6564 .- 2157-6580. ; 5:11, s. 1485-1495
-
Tidskriftsartikel (refereegranskat)abstract
- Bone marrow mesenchymal stromal cells (BM-MSCs) have been characterized and used in many clinical studies based on their immunomodulatory and regenerative properties. We have recently reported the benefit of autologous MSC systemic therapy in the treatment of type 1 diabetes mellitus (T1D). Compared with allogeneic cells, use of autologous products reduces the risk of eliciting undesired complications in the recipient, including rejection, immunization, and transmission of viruses and prions; however, comparable potency of autologous cells is required for this treatment approach to remain feasible. To date, no analysis has been reported that phenotypically and functionally characterizes MSCs derived from newly diagnosed and late-stage T1D donors in vitro with respect to their suitability for systemic immunotherapy. In this study, we used gene array in combination with functional in vitro assays to address these questions. MSCs from T1D donors and healthy controls were expanded from BM aspirates. BM mononuclear cell counts and growth kinetics were comparable between the groups, with equivalent colony-forming unit-fibroblast capacity. Gene microarrays demonstrated differential gene expression between healthy and late-stage T1D donors in relation to cytokine secretion, immunomodulatory activity, and wound healing potential. Despite transcriptional differences, T1D MSCs did not demonstrate a significant difference from healthy controls in immunosuppressive activity, migratory capacity, or hemocompatibility. We conclude that despite differential gene expression, expanded MSCs from T1D donors are phenotypically and functionally similar to healthy control MSCs with regard to their immunomodulatory and migratory potential, indicating their suitability for use in autologous systemic therapy.
|
|
| 2. |
- Ekberg, Henrik, et al.
(författare)
-
Clinicians underestimate gastrointestinal symptoms and overestimate quality of life in renal transplant recipients: A multinational survey of nephrologists
- 2007
-
Ingår i: Transplantation. - 1534-6080. ; 84:8, s. 1052-1054
-
Tidskriftsartikel (refereegranskat)abstract
- Gastrointestinal (GI) symptoms are common in renal transplant recipients and are associated with impaired health-related quality of life (HRQoL). We investigated clinician attitudes to GI symptoms and HRQoL in these patients by surveying 145 nephrologists from Sweden, Denmark, Finland, and Norway. In total, 79 clinicians responded. They estimated that 20% of their patients experienced GI discomfort and that 36% had impaired HRQoL. We previously conducted a survey of the renal transplant recipients treated-by-these clinicians, inwhich 92% reported troublesome GI symptoms and 53% had impaired HRQoL compared with the general population. Nephrologists were more likely to manage GI symptoms by reducing immunosuppressant dose (87%) than by switching medication to one with fewer GI side effects (66%). We conclude that clinicians appear to underestimate the prevalence of GI symptoms and impaired HRQoL. Improving patient-clinician communication could lead to more informed management, resulting in better HRQoL and increased graft survival.
|
|
| 3. |
- Ekberg, Henrik, et al.
(författare)
-
Increased prevalence of gastrointestinal symptoms associated with impaired quality of life in renal transplant recipients.
- 2007
-
Ingår i: Transplantation. - : Ovid Technologies (Wolters Kluwer Health). - 1534-6080 .- 0041-1337. ; 83:3, s. 282-289
-
Tidskriftsartikel (refereegranskat)abstract
- Background. Immunosuppressive therapies have been associated with gastrointestinal (GI) side effects, which may impair health-related quality of life (HRQoL). Methods. In this survey, 4,232 renal transplant recipients from Denmark, Finland, Nor-way, and Sweden completed the Short-Form 36 (SF-36) questionnaire and the Gastrointestinal Symptom Rating Scale (GSRS). SF-36 scores were compared with country norm values. Multiple logistic regression analysis was used to identify immunosuppressants associated with GI symptoms. Results. The prevalence of troublesome GI symptoms (GSRS > 1) was 83% for indigestion, 69% for abdominal pain, 58% for constipation, 53% for diarrhea, 47% for reflux, and 92% for any GI symptom. Compared with the general population, HRQoL was most commonly meaningfully impaired in the general health dimension (53% of patients). The presence and severity of GI symptoms were associated with worse HRQoL. Tacrolimus showed a significant association with diarrhea (odds ratio [OR]: 1.7; 95% confidence interval [CI]: 1.4-2.0) and constipation (OR: 1.3; 95% Cl: 1.1-1.6), and sirolimus with indigestion (OR: 2.9; 95% Cl: 1.0-8.1) and abdominal pain (OR: 2.2; 95% Cl: 1.1-4.4). Conclusions. GI symptoms are associated with impaired HRQoL in the renal transplant population. Managing GI symptoms by careful choice of immunosuppressants should be a focus for improving HRQoL in renal transplant recipients
|
|
