Diurnal variations in ischemic threshold during daily activities
نویسندگان
چکیده
منابع مشابه
Diurnal rhythm rather than dietary iron mediates daily hepcidin variations.
BACKGROUND The iron-regulating hormone hepcidin is a promising biomarker in the diagnosis of iron disorders. Concentrations of hepcidin have been shown to increase during the day in individuals who are following a regular diet. It is currently unknown whether these increases are determined by an innate rhythm or by other factors. We aimed to assess the effect of dietary iron on hepcidin concent...
متن کاملCerebral flow velocities during daily activities depend on blood pressure in patients with chronic ischemic infarctions.
BACKGROUND AND PURPOSE Target blood pressure (BP) values for optimal cerebral perfusion after an ischemic stroke are still debated. We sought to examine the relationship between BP and cerebral blood flow velocities (BFVs) during daily activities. METHODS We studied 43 patients with chronic large vessel ischemic infarctions in the middle cerebral artery territory (aged 64.2+/-8.94 years; at 6...
متن کاملCircadian variations in ischemic threshold and their relation to the occurrence of ischemic episodes.
BACKGROUND The occurrence of ischemic episodes during daily activity has been reported to exhibit a bimodal circadian distribution, yet its relation to the ischemic threshold (heart rate at 1-mm ST segment depression) has not been explored. METHODS AND RESULTS To determine whether the ischemic threshold during daily activity exhibits a circadian pattern that might relate to the frequency of o...
متن کاملDiurnal variations in milk macro-mineral concentrations in Holstein dairy cows in Urmia, Iran
Milk samples from high and low milk producer Holstein cows, were obtained during the morning and afternoon milking over a one week period. Overall, 1064 samples were tested within 14 times sampling in Urmia, Iran. Milk macro-mineral concentrations in the morning milking and in low producers were greater than in the afternoon and in high producers. The highest and lowest concentrations were obse...
متن کاملDiurnal variations in myocardial metabolism.
The heart is challenged by a plethora of extracellular stimuli over the course of a normal day, each of which distinctly influences myocardial contractile function. It is therefore not surprising that myocardial metabolism also oscillates in a time-of-day dependent manner. What is becoming increasingly apparent is that the heart exhibits diurnal variations in its intrinsic properties, including...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 1991
ISSN: 0735-1097
DOI: 10.1016/0735-1097(91)91858-c