Early diagnosis of diabetic vascular complications: Impairment of red blood cell deformability

Sehyun Shin, Yunhee Ku, Cheol Woo Park, Jang Soo Suh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Reduced deformability of red blood cells (RBCs) may play an important role on the pathogenesis of chronic vascular complications of diabetes mellitus. However, available techniques for measuring RBC deformability often require washing process after each measurement, which is not optimal for day-to-day clinical use at point of care. The objectives of the present study are to develop a device and to delineate the correlation of impaired RBC deformability with diabetic nephropathy. We developed a disposable ektacytometry to measure RBC deformability, which adopted a laser diffraction technique and slit rheometry. The essential features of this design are its simplicity (ease of operation and no moving parts) and a disposable element which is in contact with the blood sample. We studied adult diabetic patients divided into three groups according to diabetic complications. Group I comprised 57 diabetic patients with normal renal function. Group II comprised 26 diabetic patients with chronic renal failure (CRF). Group III consisted of 30 diabetic subjects with end-stage renal disease (ESRD) on hemodialysis. According to the renal function for the diabetic groups, matched non-diabetic groups were served as control. We found substantially impaired red blood cell deformability in those with normal renal function (group I) compared to non-diabetic control (P = 0.0005). As renal function decreases, an increased impairment in RBC deformability was found. Diabetic patients with chronic renal failure (group II) when compared to non-diabetic controls (CRF) had an apparently greater impairment in RBC deformability (P = 0.07). The non-diabetic cohort (CRF), on the other hand, manifested significant impairment in red blood cell deformability compared to healthy control (P = 0.0001). The newly developed slit ektacytometer can measure the RBC deformability with ease and accuracy. In addition, progressive impairment in cell deformability is associated with renal function loss in all patients regardless of the presence or absence of diabetes. In diabetic patients, early impairment in RBC deformability appears in patients with normal renal function.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume6080
DOIs
Publication statusPublished - 2006 May 8
Externally publishedYes
EventAdvanced Biomedical and Clinical Diagnostic Systems IV - San Jose, CA, United States
Duration: 2006 Jan 222006 Jan 24

Other

OtherAdvanced Biomedical and Clinical Diagnostic Systems IV
CountryUnited States
CitySan Jose, CA
Period06/1/2206/1/24

Fingerprint

impairment
erythrocytes
Formability
renal function
Blood
Cells
Medical problems
slits
diabetes mellitus
pathogenesis
washing
blood
Washing
Diffraction

Keywords

  • Complications
  • Deformability
  • Diabetic
  • Disposable
  • Ektacytometry
  • RBC

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Shin, S., Ku, Y., Park, C. W., & Suh, J. S. (2006). Early diagnosis of diabetic vascular complications: Impairment of red blood cell deformability. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 6080). [608014] https://doi.org/10.1117/12.657383

Early diagnosis of diabetic vascular complications : Impairment of red blood cell deformability. / Shin, Sehyun; Ku, Yunhee; Park, Cheol Woo; Suh, Jang Soo.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6080 2006. 608014.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Shin, S, Ku, Y, Park, CW & Suh, JS 2006, Early diagnosis of diabetic vascular complications: Impairment of red blood cell deformability. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 6080, 608014, Advanced Biomedical and Clinical Diagnostic Systems IV, San Jose, CA, United States, 06/1/22. https://doi.org/10.1117/12.657383
Shin S, Ku Y, Park CW, Suh JS. Early diagnosis of diabetic vascular complications: Impairment of red blood cell deformability. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6080. 2006. 608014 https://doi.org/10.1117/12.657383
Shin, Sehyun ; Ku, Yunhee ; Park, Cheol Woo ; Suh, Jang Soo. / Early diagnosis of diabetic vascular complications : Impairment of red blood cell deformability. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6080 2006.
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