Acta Diabetologica最新文献

Background: Diabetes-related complications, such as diabetic peripheral neuropathy (DPN) and chronic kidney disease (CKD), severely affect quality of life. Early detection is crucial. This study investigates ocular imaging parameters as potential biomarkers for these conditions using corneal confocal microscopy (CCM) and optical coherence tomography angiography (OCTA).

Methods: This cross-sectional study included 76 type 2 diabetes patients (139 eyes) from Fujian Medical University Union Hospital. Participants underwent CCM to assess corneal nerve fiber density (CNFD), branching density (CNBD), and nerve fiber length (CNFL). OCTA and OCT were used to evaluate macular and peripapillary retinal vascular densities (VD) and retinal nerve fiber layer (RNFL) thickness. Laboratory tests measured sural nerve conduction velocity (SSNCV), urine albumin-to-creatinine ratio (UACR), and estimated glomerular filtration rate (eGFR). DPN and CKD were categorized using Toronto consensus criteria and UACR thresholds, respectively. Statistical analyses included Spearman correlation and ROC curve evaluations.

Results: Significant reductions in CNFD, CNBD, and CNFL were observed in the DPN + group compared to DPN- (P < 0.001, P = 0.005, P < 0.001). Corneal nerve parameters correlated positively with SSNCV (r = 0.419-0.430, P < 0.001). ROC analysis demonstrated CNFD as the most sensitive marker for detecting DPN (AUC = 0.7179, 95% CI: 0.6328-0.8031). Retinal superficial VD in the superior macular region showed the highest diagnostic performance for CKD (AUC = 0.7140, 95% CI: 0.6057-0.8223), with significant correlations between retinal VD parameters and UACR.

Conclusions: Corneal nerve parameters measured by CCM and retinal vascular parameters assessed by OCTA are promising non-invasive biomarkers for early detection and monitoring of diabetic neuropathic and microvascular disorders.

Introduction: Recommended pregnancy specific Time in Range (TIR) 63-140 mg/dl is a quite wide range and, even if the goal of > 70% is achieved, the specific targets for fasting and mean glycaemia, which are much lower than 140 mg/dl, could not be complied. This case series aimed to explore the performance of an Advanced Hybrid closed Loop (AHCL) in pregnancy on a stricter glycaemic range.

Methods: We collected retrospective data about recommended glucose metrics and an hypothetic TITR 63-95 mg/dl, more suitable for fasting periods, from 11 type 1 diabetes patients, using Medtronic MiniMed™ 780G, with glucose target 100 mg/dl and Active Insulin Time 2 h, from preconceptional phase until delivery.

Results: TIR 63-140 mg/dl quickly improved throughout pregnancy, with progressively improving HbA1c and no significant changes in Time Below Range (TBR). TITR 63-95 mg/dl was 26% in the 1st trimester, 20% in the 2nd and 30% in the 3rd, corresponding to 6, 5 and 7 h per day, less than the hypothetic 8/24 hours of fasting. TAR > 140 reduced more compared to TAR > 95, reflecting a greater improve in postprandial values than in fasting.

Conclusions: Although the AHCL Medtronic MiniMed™ 780G helped improving glycaemic control during pregnancy, our patients spent very few hours in the range 63-95 mg/dl, probably because they did not reach fasting glucose goals. A stricter TIR may be hypothesized for pregnant women too, as an additional goal along with TIR 63-140 mg/dl, but studies are needed to explore the consequences on maternal and fetal outcomes.