Capillary-to-fiber geometrical relations constitute an integral component of peripheral gas exchange. Determination of capillary length and surface area density necessitates quantification of capillary orientation (i.e., tortuosity and branching). In skeletal muscle, capillary tortuosity increases in a curvilinear fashion at reduced sarcomere length, and this compensates for decreased capillary...

A simple procedure was developed for preparing a carbon-coated fused-silica capillary for use in sheathless capillary electrophoresis/electrospray mass spectrometry (CE/ESI-MS). The tapered capillary tip was smeared with a marker pen before coating with carbon using a soft pencil. The layer from the ink of the marker pen was critical to the preparation of the carbon-coated capillary. The fabric...

In this paper, the effect of air relative humidity and capillary force on contact geometry of surfaces based on JKR model by Atomic force microscopy was investigated in order to manipulate nano-particles. With transition from macro to nano-scale, the effect of surface forces becomes more significant in comparison with inertial force. Because contact mechanics models are based on surface energy ...

Introduction: Exercise training increases skeletal muscle capillary density, but the molecular mechanisms of this process are not yet clear. The aim of the present study was to investigate the effect of acute long- term submaximal exercise on serum vascular endothelial growth factor (VEGF) as the main angiogenic factor, and matrix metalloproteinases 2 and 9 ( MMP-2 and MMP-9), as the degradi...

OBJECTIVE Local capillary permeability in patients with SSc has been reported increased when assessed by nail-fold capillaroscopy. We measured capillary permeability at a clinically less affected site by using large-window fluorescein videodensitometry of the ankle. We hypothesized that increased capillary permeability or leakage is a generalized phenomenon in SSc. METHODS Large-window videod...

Sequential nailfold capillary microscopy was carried out monthly for seven months in seven patients (four with scleroderma, one with dermatomyositis, one with mixed connective tissue disease, and one with limited connective tissue disease). Progressive enlargement of some capillary loops was observed, with a number becoming obliterated, leaving avascular areas. Extravasation from capillaries us...