scholarly journals Cardiovascular Physiological Effects Generated by Exercise with Restriction of Blood Flow: A Mini Review

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Bonfim Igor S
Keyword(s):  
Blood Flow ◽  
Physiological Effects

Physiological effects of hyperthermia: response of capillary blood flow and structure to local tumor heating.

Radiology ◽  
1980 ◽  
Vol 137 (3) ◽  
pp. 805-809 ◽  
Author(s):  
B Emami ◽  
G H Nussbaum ◽  
R K TenHaken ◽  
W L Hughes
Keyword(s):  
Blood Flow ◽  
Capillary Blood ◽  
Capillary Blood Flow ◽  
Physiological Effects ◽  
Local Tumor

scholarly journals Development of a Function-Integrative Sleeve for Medical Applications

Sensors ◽  
2019 ◽  
Vol 19 (11) ◽  
pp. 2588 ◽  
Author(s):  
Moritz Neubauer ◽  
Eric Häntzsche ◽  
Christina Pamporaki ◽  
Graeme Eisenhofer ◽  
Martin Dannemann ◽  
...  
Keyword(s):  
Blood Flow ◽  
Upper Extremity ◽  
Positive Impact ◽  
Diagnostic Procedures ◽  
Physiological Effects ◽  
User Friendliness ◽  
Clinical Investigations ◽  
Tumour Diagnosis ◽  
Local Warming

Function-integrative textiles bear the potential for a variety of applications in the medical field. Recent clinical investigations suggest that the application of a function-integrative fabric could have a positive impact on currently applied diagnostic procedures of a specific type of tumour. In this context, the fabric should enable local warming of a patient’s upper extremity as well as blood flow measurement. Existing solutions comprise a warming system but lack a measuring apparatus for blood flow determination. With regard to the quality of results of current diagnostic procedures, the local warming of the patients’ upper extremity and the simultaneous determination of the blood flow plateau are crucial. In the present paper, the development process of a function-integrative sleeve is introduced. Besides the development of an adaptable sleeve-design, the manufacturing process of an integrated warming system was also addressed. Furthermore, the identification of crucial physiological effects, using a Laser Doppler Perfusion Monitor, is introduced. During testing of the function-integrative sleeve, modulation of the desired physiological effects was observed. The results support the initial assumptions and dictate further investigations on increasing user-friendliness and cost-efficiency during adjusting and determining the physiological effects in the course of tumour diagnosis.

Cerebral Microcirculation

Physiology ◽  
1988 ◽  
Vol 3 (4) ◽  
pp. 164-167
Author(s):  
WG Mayhan ◽  
FM Faraci ◽  
GL Baumbach ◽  
DD Heistad
Keyword(s):  
Blood Flow ◽  
Cerebral Blood Flow ◽  
Blood Brain Barrier ◽  
Vessel Wall ◽  
Brain Barrier ◽  
Chronic Hypertension ◽  
Physiological Effects ◽  
Cerebral Microcirculation ◽  
Acute Hypertension ◽  
Cerebral Arterioles

Three concepts are summarized. First, cerebral microvascular pressure, which can be regulated independently from cerebral blood flow, may have important physiological effects. Second, the blood-brain barrier is more vulnerable to disruption in venules than in capillaries or arterioles during acute hypertension. Third, cerebral arterioles are protected during chronic hypertension by a surprising combination of vascular hypertrophy, remodeling of the vessel wall, and a paradoxical increase in distensibility.

Acylated anthocyanins derived from purple carrot (Daucus carota L.) induce elevation of blood flow in rat cremaster arteriole

2019 ◽  
Vol 10 (3) ◽  
pp. 1726-1735 ◽  
Author(s):  
Ayaka Tsutsumi ◽  
Yukari Horikoshi ◽  
Taiki Fushimi ◽  
Akiko Saito ◽  
Ryo Koizumi ◽  
...  
Keyword(s):  
Blood Flow ◽  
Daucus Carota ◽  
Physiological Effects ◽  
Daucus Carota L ◽  
Acylated Anthocyanins ◽  
Monomeric Anthocyanins

Acylated anthocyanins are more stable than monomeric anthocyanins, but little is known about their physiological effects.

scholarly journals Mechanisms of spinal cord stimulation in ischemia

2006 ◽  
Vol 21 (6) ◽  
pp. 1-5 ◽  
Author(s):  
Oren Sagher ◽  
Dah-Luen Huang
Keyword(s):  
Spinal Cord ◽  
Blood Flow ◽  
Nervous System ◽  
Spinal Cord Stimulation ◽  
Vascular Tone ◽  
Brain Regions ◽  
Cortical Activation ◽  
Physiological Effects ◽  
Mca Occlusion ◽  
Broad Scale

Object The goal of this study was to assess the duration of neuroprotection after SCS. Nearly 40 years after the first description of spinal cord stimulation (SCS), the mechanisms underlying its physiological effects remain unclear. It is known that SCS affects activity in the nervous system on a broad scale. Local neurohumoral changes within the dorsal horn of the spinal cord have been described, as have changes in cortical activation in a number of brain regions. Spinal cord stimulation has even been found to have profound effects on sympathetic vascular tone, a discovery that has led to its use in ameliorating blood flow in the limbs, heart, and brain. Methods In an effort to delineate the limits of neuroprotection offered by SCS, the authors have studied its use in an experimental model of permanent middle cerebral artery (MCA) occlusion in rats. The investigators applied SCS in a delayed fashion 3, 6, or 9 hours after MCA occlusion. The results are reported and mechanisms underlying the physiological effects of SCS are reviewed, with particular attention being paid to the effect of SCS on cerebral blood flow in the setting of cerebral ischemia. Conclusions The authors found that SCS applied as late as 6 hours postischemia significantly reduces stroke volumes, whereas SCS applied 9 hours after ischemia fails to reduce stroke injury.

scholarly journals Cerebral and systemic physiological effects of wearing face masks in young adults

2021 ◽  
Vol 118 (41) ◽  
pp. e2109111118 ◽  
Author(s):  
Jonas B. Fischer ◽  
Lisa Kobayashi Frisk ◽  
Felix Scholkmann ◽  
Raquel Delgado-Mederos ◽  
Mercedes Mayos ◽  
...  
Keyword(s):  
Blood Flow ◽  
Near Infrared ◽  
Daily Life ◽  
Cerebral Hemodynamics ◽  
Tissue Oxygen Saturation ◽  
Physiological Effects ◽  
Tissue Oxygen ◽  
Daily Life Activities ◽  
Different Populations ◽  
The Brain

The COVID-19 pandemic led to widespread mandates requiring the wearing of face masks, which led to debates on their benefits and possible adverse effects. To that end, the physiological effects at the systemic and at the brain level are of interest. We have investigated the effect of commonly available face masks (FFP2 and surgical) on cerebral hemodynamics and oxygenation, particularly microvascular cerebral blood flow (CBF) and blood/tissue oxygen saturation (StO2), measured by transcranial hybrid near-infrared spectroscopies and on systemic physiology in 13 healthy adults (ages: 23 to 33 y). The results indicate small but significant changes in cerebral hemodynamics while wearing a mask. However, these changes are comparable to those of daily life activities. This platform and the protocol provides the basis for large or targeted studies of the effects of mask wearing in different populations and while performing critical tasks.

scholarly journals Blood Flow, Sympathetic Activity and Pain Relief following Lumbar Sympathetic Blockade or Surgical Sympathectomy

1985 ◽  
Vol 13 (1) ◽  
pp. 18-24 ◽  
Author(s):  
John A. Walsh ◽  
Christopher J. Glynn ◽  
Michael J. Cousins ◽  
Robert W. Basedow
Keyword(s):  
Blood Flow ◽  
Pain Relief ◽  
Vascular Disease ◽  
Skin Temperature ◽  
Local Anaesthetic ◽  
Sympathetic Activity ◽  
Physiological Effects ◽  
Sympathetic Blockade ◽  
Peripheral Vascular ◽  
Surgical Ablation

The physiological effects of local anaesthetic (bupivacaine), neurolytic (phenol) blockade and surgical ablation of the lumbar sympathetic chain were assessed in patients with peripheral vascular disease or sympathetic dystrophy. Local anaesthetic blockade in 49 patients resulted in significant decrease in pain, plantar sweating and in the vasoconstrictor ice response of the foot, as well as a significant increase in skin temperature and foot blood flow. Subsequent neurolytic blockade in 31 of these patients achieved an effective denervation as assessed by the same physiological measurements. The magnitude of changes in blood flow and sympathetic activity were similar for local anaesthetic and neurolytic blockade as well as in six patients who underwent surgical sympathectomy.

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