scholarly journals Acute hyperglycaemia enhances both vascular endothelial function and cardiac and skeletal muscle microvascular function in healthy humans

2021 ◽  
Author(s):  
William B. Horton ◽  
Linda A. Jahn ◽  
Lee M. Hartline ◽  
Kevin W. Aylor ◽  
James T. Patrie ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Endothelial Function ◽  
Microvascular Function ◽  
Vascular Endothelial ◽  
Vascular Endothelial Function ◽  
Acute Hyperglycaemia ◽  
Healthy Humans

scholarly journals Endothelial cell senescence with aging in healthy humans: prevention by habitual exercise and relation to vascular endothelial function

2017 ◽  
Vol 313 (5) ◽  
pp. H890-H895 ◽  
Author(s):  
Matthew J. Rossman ◽  
Rachelle E. Kaplon ◽  
Sierra D. Hill ◽  
Molly N. McNamara ◽  
Jessica R. Santos-Parker ◽  
...  
Keyword(s):  
Endothelial Cell ◽  
Endothelial Dysfunction ◽  
Endothelial Function ◽  
Cell Senescence ◽  
Vascular Endothelial ◽  
Vascular Endothelial Dysfunction ◽  
Vascular Endothelial Function ◽  
Healthy Humans ◽  
Age Related ◽  
Habitual Exercise

Cellular senescence is emerging as a key mechanism of age-related vascular endothelial dysfunction, but evidence in healthy humans is lacking. Moreover, the influence of lifestyle factors such as habitual exercise on endothelial cell (EC) senescence is unknown. We tested the hypothesis that EC senescence increases with sedentary, but not physically active, aging and is associated with vascular endothelial dysfunction. Protein expression (quantitative immunofluorescence) of p53, a transcription factor related to increased cellular senescence, and the cyclin-dependent kinase inhibitors p21 and p16 were 116%, 119%, and 128% greater (all P < 0.05), respectively, in ECs obtained from antecubital veins of older sedentary (60 ± 1 yr, n = 12) versus young sedentary (22 ± 1 yr, n = 9) adults. These age-related differences were not present (all P > 0.05) in venous ECs from older exercising adults (57 ± 1 yr, n = 13). Furthermore, venous EC protein levels of p53 ( r = −0.49, P = 0.003), p21 ( r = −0.38, P = 0.03), and p16 ( r = −0.58, P = 0.002) were inversely associated with vascular endothelial function (brachial artery flow-mediated dilation). Similarly, protein expression of p53 and p21 was 26% and 23% higher (both P < 0.05), respectively, in ECs sampled from brachial arteries of healthy older sedentary (63 ± 1 yr, n = 18) versus young sedentary (25 ± 1 yr, n = 9) adults; age-related changes in arterial EC p53 and p21 expression were not observed ( P > 0.05) in older habitually exercising adults (59 ± 1 yr, n = 14). These data indicate that EC senescence is associated with sedentary aging and is linked to endothelial dysfunction. Moreover, these data suggest that prevention of EC senescence may be one mechanism by which aerobic exercise protects against endothelial dysfunction with age. NEW & NOTEWORTHY Our study provides novel evidence in humans of increased endothelial cell senescence with sedentary aging, which is associated with impaired vascular endothelial function. Furthermore, our data suggest an absence of age-related increases in endothelial cell senescence in older exercising adults, which is linked with preserved vascular endothelial function. Listen to this article's corresponding podcast at http://ajpheart.podbean.com/e/aging-exercise-and-endothelial-cell-senescence/ .

Exhaled Nitric Oxide Does Not Provide a Marker of Vascular Endothelial Function in Healthy Humans

1999 ◽  
Vol 160 (3) ◽  
pp. 879-882 ◽  
Author(s):  
CLAUDIO SARTORI ◽  
MATTIA LEPORI ◽  
THILO BUSCH ◽  
HERVÉ DUPLAIN ◽  
WULF HILDEBRANDT ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Endothelial Function ◽  
Exhaled Nitric Oxide ◽  
Vascular Endothelial ◽  
Vascular Endothelial Function ◽  
Healthy Humans

scholarly journals Vagus Nerve Stimulation Attenuates Acute Skeletal Muscle Injury Induced by Ischemia-Reperfusion in Rats

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Yifeng Zhang ◽  
Hewei Li ◽  
Menglong Wang ◽  
Guannan Meng ◽  
Zhenya Wang ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Skeletal Muscle ◽  
Endothelial Function ◽  
Vagus Nerve ◽  
Nerve Stimulation ◽  
Vagus Nerve Stimulation ◽  
Ischemia Reperfusion ◽  
Vascular Endothelial ◽  
Vascular Endothelial Function ◽  
R Process

Vagus nerve stimulation (VNS) has been shown to attenuate ischemia-reperfusion (I/R) injury in multiple organs. The present study aimed at investigating whether VNS could exert protective effects against I/R injury in the skeletal muscle. Male Sprague-Dawley rats were randomly divided into 3 groups: the control, I/R, and I/R+VNS groups. The skeletal muscle I/R (SMI/R) model was induced by occlusion of the left femoral artery for 2.5 hours followed by reperfusion for 2 hours. The vagal nerve trunk was separated, and VNS was performed during the whole I/R process. The intensity of VNS was optimized in each rat to obtain a 10% reduction in the heart rate relative to the value before stimulation. After the experiment, the blood sample and left gastrocnemius muscle tissues were collected for histological examination, biochemical analysis, and molecular biological detection. During the I/R process, VNS significantly reduced cellular apoptosis, necrosis, and inflammatory cell infiltration compared to sham VNS. The VNS treatment also decreased the inflammatory response, alleviated oxidative stress, and improved vascular endothelial function (p<0.05 for each). In contrast, the I/R group showed an opposite effect compared to the control group. The present study indicated that VNS could protect against SMI/R injury by suppressing excessive inflammation, alleviating oxidative stress, and preserving vascular endothelial function.

Albuminuria Is More Closely Associated with Vascular Endothelial Function than eGFR in Type 2 Diabetes with Diabetic Kidney Disease

Diabetes ◽  
2018 ◽  
Vol 67 (Supplement 1) ◽  
pp. 443-P
Author(s):  
YOSHINORI KAKUTANI ◽  
MASANORI EMOTO ◽  
YUKO YAMAZAKI ◽  
KOKA MOTOYAMA ◽  
TOMOAKI MORIOKA ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Kidney Disease ◽  
Endothelial Function ◽  
Diabetic Kidney Disease ◽  
Vascular Endothelial ◽  
Vascular Endothelial Function ◽  
Diabetic Kidney

scholarly journals A novel approach to the assessment of vascular endothelial function

2011 ◽  
Vol 307 ◽  
pp. 012014 ◽  
Author(s):  
S Sathasivam ◽  
S Phababpha ◽  
P Sengmeuan ◽  
P Detchaporn ◽  
Z Siddiqui ◽  
...  
Keyword(s):  
Endothelial Function ◽  
Vascular Endothelial ◽  
Vascular Endothelial Function ◽  
Novel Approach
Sign in / Sign up

Export Citation Format

Share Document