ArticleEuropean journal of applied physiology2012
Autoregulation in the ocular and cerebral arteries during the cold pressor test and handgrip exercise.
Article in European journal of applied physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
12 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.
- A single session of exercise reduces blood pressure reactivity to stress: a systematic review and meta-analysis.Scientific reports · 2022Pooled it
- Optic nerve head and retinal blood flow regulation during isometric exercise as assessed with laser speckle flowgraphy.PloS one · 2017Trial
- Ocular circulatory responses to exhaustive exercise in humans.European journal of applied physiology · 2012Trial
- Cardiovascular and Ocular Parameter Alterations in Response to Cold Pressor Test in Young Adults.Diagnostics (Basel, Switzerland) · 2024Article
- The characteristics of fundus microvascular alterations in the course of glaucoma: a narrative review.Annals of translational medicine · 2022Review
- Prospective Pilot Clinical Study of Noninvasive Cerebrovascular Autoregulation Monitoring in Open-Angle Glaucoma Patients and Healthy Subjects.Translational vision science & technology · 2022Article
- Acute and Chronic Periocular Massage for Ocular Blood Flow and Vision: a Randomized Controlled Trial.International journal of therapeutic massage & bodywork · 2021Article
- Fluid intake restores retinal blood flow early after exhaustive exercise in healthy subjects.European journal of applied physiology · 2018Article
- Effects of heat stress on ocular blood flow during exhaustive exercise.Journal of sports science & medicine · 2014Article
- Global brain blood-oxygen level responses to autonomic challenges in obstructive sleep apnea.PloS one · 2014Article
- Ocular blood flow decreases during passive heat stress in resting humans.Journal of physiological anthropology · 2013Article
- Effect of physical activity on severity of primary angle closure glaucoma.Therapeutic advances in ophthalmologyArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The aim of this study was to determine whether autoregulation exerts similar effects in the ocular and cerebral vessels, which are both branches of the internal carotid artery. Ocular blood flow velocities, cerebral blood flow velocity and blood pressure were measured in 11 subjects during a 2-min resting period, static handgrip exercise (HG) and a cold pressor test (CPT). Blood velocity data for the superior and inferior temporal retinal arterioles (STRA and ITRA, respectively) and the retinal and choroidal vasculature (RCV) were obtained for 4 s during the measurement using laser speckle flowmetry. Mean blood flow velocity in the middle cerebral artery (MCAVmean) was measured by transcranial Doppler ultrasound. The conductance index (CI) of each vessel was calculated by dividing blood flow by mean arterial pressure. Blood flow velocity in the RCV increased by 19 ± 9% from resting baseline level during the CPT (P < 0.05), while blood flow in the STRA, ITRA and MCAVmean did not. The CI of the MCA decreased. The RCV blood flow velocity, ITRA blood flow and MCAVmean increased by 8 ± 1, 9 ± 3 and 11 ± 4%, respectively, during the HG (P < 0.05). Conversely, STRA blood flow remained unchanged. The HG did not significantly change the CI in any of the vessels measured. These findings suggest that cerebral blood flow velocity was maintained during the CPT, but autoregulation does not work well in the RCV during the CPT and HG.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.