Using conjunctival capillaroscopy, the authors studied 40 diabetic patients during glycemic decompensation. The capillaroscopic test, after all metabolic control tests, was repeated 1 and 3 months later and demonstrated improved microcirculation in 10 patients, and proved that therapeutic control is possible during the progression of diabetic microangiopathy.
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Sci Rep
January 2025
Hive AI Innovation Studio, Department of Computer Science and Engineering, University of Louisville, Louisville, KY, 40292, USA.
Nailfold Capillaroscopy (NFC) is a simple, non-invasive diagnostic tool used to detect microvascular changes in nailfold. Chronic pathological changes associated with a wide range of systemic diseases, such as diabetes, cardiovascular disorders, and rheumatological conditions like systemic sclerosis, can manifest as observable microvascular changes in the terminal capillaries of nailfolds. The current gold standard relies on experts performing manual evaluations, which is an exhaustive time-intensive, and subjective process.
View Article and Find Full Text PDFCureus
December 2024
Department of Mathematical Health Science, Graduate School of Medicine, Osaka University, Osaka, JPN.
Objective: Microvascular changes, such as crossing nailfold capillaries, could be crucial for linking maximum lifetime body mass index (BMI) and microvascular complications in patients with type 2 diabetes mellitus (T2DM). However, the relationship between maximum lifetime BMI and microvascular changes remains elusive. This study aimed to elucidate the relationship between maximum lifetime BMI and the percentage of crossing nailfold capillaries among patients with T2DM.
View Article and Find Full Text PDFLife (Basel)
December 2024
Clinical Physiology Unit, Medical Simulation Centre, Medical University of Gdańsk, 80-210 Gdańsk, Poland.
This study aimed to analyze the relationship between cutaneous microcirculation reactivity, retinal circulation, macrocirculation function, and specific adhesion molecules in young patients with uncomplicated type 1 diabetes. Fifty-five patients with type 1 diabetes mellitus (T1DM), aged 8 to 18 years, were divided into subgroups based on skin microcirculation reactivity. The cutaneous microcirculatory vessels were considered reactive if post-test PORH coverage increased compared to pre-test coverage.
View Article and Find Full Text PDFACR Open Rheumatol
January 2025
Madonna delle Grazie Hospital, Matera, Italy.
A 60-year-old man with a significant 20-year history of smoking, averaging approximately 20 cigarettes per day, presented with type 2 diabetes mellitus, hypercholesterolemia, and hypertension. Over the preceding three months, the patient reported recurrent episodes of acrocyanosis and erythema of the hands that were primarily induced by cold exposure. A capillaroscopy conducted in November 2024 revealed a "scleroderma-like pattern" that was characterized by enlarged capillaries, megacapillaries, and a capillary density of fewer than eight capillaries per millimeter.
View Article and Find Full Text PDFJ Biophotonics
December 2024
Department of Physics, Lomonosov Moscow State University, Moscow, Russia.
In this study, the parameters of blood microcirculation and microrheology were measured using the methods of laser aggregometry and optical tweezers in vitro, as well as the method of digital capillaroscopy in vivo. It was shown that in patients suffering from type 2 diabetes mellitus, an increase in the number of RBC aggregates passing through the narrow capillaries leads to a significant decrease in the velocity of the capillary blood flow, which can be explained by the increased viscosity of the whole blood and decreased deformability of RBCs. Also, for the group of patients, a statistically significant increase in the rate of RBC aggregation and the hydrodynamic strength of aggregates, RBC aggregation and disaggregation forces were observed compared to the control group.
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