Optical discrimination of pathological red blood cells.

Biotechnol Bioeng

Interdisciplinary Laboratories for Advanced Materials Physics (i-LAMP) and Dipartimento di Matematica e Fisica, Università Cattolica del Sacro Cuore, Brescia, Italy.

Published: October 2024


Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

Fast diagnostic methods are crucial to reduce the burden on healthcare systems. Currently, detection of diabetes complications such as neuropathy requires time-consuming approaches to observe the correlated red blood cells (RBCs) morphological changes. To tackle this issue, an optical analysis of RBCs in air was conducted in the 250-2500 nm range. The distinct oscillations present in the scattered and direct transmittance spectra have been analyzed with both Mie theory and anomalous diffraction approximation. The results provide information about the swelling at the ends of RBCs and directly relate the optical data to RBCs morphology and deformability. Both models agree on a reduction in the size and deformability of RBCs in diabetic patients, thus opening the way to diabetes diagnosis and disease progression assessment.

Download full-text PDF

Source
http://dx.doi.org/10.1002/bit.28798DOI Listing

Publication Analysis

Top Keywords

red blood
8
blood cells
8
rbcs
5
optical discrimination
4
discrimination pathological
4
pathological red
4
cells fast
4
fast diagnostic
4
diagnostic methods
4
methods crucial
4

Similar Publications

Epigenetic processes, such as DNA methylation, show potential as biological markers and mechanisms underlying gene-environment interplay in the prediction of mental health and other brain-based phenotypes. However, little is known about how peripheral epigenetic patterns relate to individual differences in the brain itself. An increasingly popular approach to address this is by combining epigenetic and neuroimaging data; yet, research in this area is almost entirely comprised of cross-sectional studies in adults.

View Article and Find Full Text PDF

Background: Cystic fibrosis (CF) is a genetic disorder that remains underrecognized across Africa, where limited diagnostic capacity, low awareness, and competing health priorities contribute to delayed or missed diagnoses [1-4]. Although increasing data suggests CF is more prevalent than previously believed in Africa, survival remains poor [1]. These challenges do not only affect people with CF (pwCF) in Africa but also have implications for global understanding of the disease, particularly among populations historically excluded from CF research and treatment advances.

View Article and Find Full Text PDF

Prototheca wickerhamii Causing Toe Infection Presenting Initially as Gouty Arthritis: A Rare Case Report.

Int J Infect Dis

September 2025

Department of Laboratory Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, 200092, China. Electronic address:

Prototheca, a genus of opportunistic pathogenic microalgae, can cause protothecosis in humans and animals, manifesting as cutaneous lesions or disseminated/systemic infections. This report describes a rare case of Prototheca wickerhamii toe infection in a 78-year-old Chinese male, presenting initially as gouty arthritis. The patient, who worked in fish farming with frequent water exposure, had a history of herpes zoster and hypertension.

View Article and Find Full Text PDF

Role of hydrogen sulfide in catalyzing the formation of NO-ferroheme.

Nitric Oxide

September 2025

Department of Physics, Wake Forest University, Winston-Salem, NC 27109, USA; Translational Science Center, Wake Forest University, Winston-Salem, NC 27109, USA. Electronic address:

We recently demonstrated a rapid reaction between labile ferric heme and nitric oxide (NO) in the presence of reduced glutathione (GSH) or other small thiols in a process called thiol-catalyzed reductive nitrosylation, yielding a novel signaling molecule, labile nitrosyl ferrous heme (NO-ferroheme), which we and others have shown can regulate vasodilation and platelet homeostasis. Red blood cells (RBCs) contain high concentrations of GSH, and NO can be generated in the RBC via nitrite reduction and/or RBC endothelial nitric oxide synthase (eNOS) so that NO-ferroheme could, in principle, be formed in the RBC. NO-ferroheme may also form in other cells and compartments, including in plasma, where another small and reactive thiol species, hydrogen sulfide (HS/HS), is also present and may catalyze NO-ferroheme formation akin to GSH.

View Article and Find Full Text PDF

Background: Benzene, a ubiquitous industrial chemical, is a well-established environmental toxin associated with hematological disorders such as myelodysplastic syndromes (MDS) and acute myeloid leukemia (AML), which are characterized by impaired hematopoiesis and bone marrow failure. This study investigates the role of ferroptosis, an iron-dependent form of cell death, in benzene-induced hematotoxicity, focusing on the repression of glutathione peroxidase 4 (GPX4), a critical regulator of ferroptosis.

Materials And Methods: Male C57BL/6 mice were exposed to benzene at various doses over six weeks.

View Article and Find Full Text PDF