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28 March 2016 In vivo reflectance-mode confocal microscopy assessments: impact of overweight on human skin microcirculation and histomorphology
Ahmet A. Altintas, Matthias C. Aust, Robert Krämer, Peter M. Vogt, Mehmet Ali Altintas M.D.
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Journal of Biomedical Optics, Vol. 21, Issue 3, 036009 (March 2016). https://doi.org/10.1117/1.JBO.21.3.036009
Abstract
Reflectance-mode confocal microscopy (RCM) enables in vivo assessment of the human skin. Impact of overweight on both human skin microcirculation and histomorphology has not been investigated in vivo. The purpose of this study is to evaluate both microcirculation and histomorphology in vivo in overweight. In 10 normotensive overweight nondiabetic individuals (OW-group, BMI 29.1±2.7  kg/m2) and 10 age- and sex-matched healthy lean controls (CO-group, BMI 20.4±1.9  kg/m2) the following parameters were evaluated using RCM: dermal blood cell flow (DBCF), density of dermal capillaries (DDC), epidermal thickness (ET), and epidermal cell size (ECS). DBCF was counted at 63.11±4.14  cells/min in OW-group and at 51.06±3.84  cells/min in CO-group (P<0.05). DDC was reduced in OW-group (4.91±0.39  capillaries/mm2) compared to the controls (6.02±0.64  capillaries/mm2, P<0.05). Histometric evaluation of ET reveals thickening in OW-group compared to the CO-group (54.79±4.25  μm versus 44.03±3.11  μm, P<0.05). ECS differed significantly (P<0.05) in OW-group (821.3±42.02  μm2) compared to the controls (772.6±34.79  μm2). Inverse correlation of dermal capillary density and overweight point to reduced total tissue perfusion while positive related blood cell flow reveals vasodilatation. Increase of both ET and cell size indicates remodeling of cutaneous histomorphology, maybe as an early stage of adiposity-related skin condition.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE) 1083-3668/2016/$25.00 © 2016 SPIE
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Ahmet A. Altintas, Matthias C. Aust, Robert Krämer, Peter M. Vogt, and Mehmet Ali Altintas M.D. "In vivo reflectance-mode confocal microscopy assessments: impact of overweight on human skin microcirculation and histomorphology," Journal of Biomedical Optics 21(3), 036009 (28 March 2016). https://doi.org/10.1117/1.JBO.21.3.036009
Published: 28 March 2016
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KEYWORDS
Skin
Capillaries
In vivo imaging
Confocal microscopy
Blood
Control systems
Tissues
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