Blood sugar
hideBlood sugar concentration, or glucose level, refers to the amount of glucose present in the blood of a human or animal. Normally, in mammals the blood glucose level is maintained at a reference range between about 3.6 and 5.8 mM (mmol/l). It is tightly regulated as a part of metabolic homeostasis.
Mean normal blood glucose levels in humans are about 90 mg/100ml, equivalent to 5mM (mmol/l) (since the molecular weight of glucose, C6H12O6, is about 180 g/mol). The total amount of glucose normally in circulating human blood is therefore about 3.3 to 7g (assuming an ordinary adult blood volume of 5 litres, plausible for an average adult male). Glucose levels rise after meals for an hour or two by a few grams and are usually lowest in the morning, before the first meal of the day. Transported via the bloodstream from the intestines or liver to body cells, Glucose is the primary source of energy for body's cells, fats and oils (ie, lipids) being primarily a compact energy store.
Failure to maintain blood glucose in the normal range leads to conditions of persistently high (hyperglycemia) or low (hypoglycemia) blood sugar. Diabetes mellitus, characterized by persistent hyperglycemia from any of several causes, is the most prominent disease related to failure of blood sugar regulation.
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News tagged with blood sugar levels
Combined dietary factors impact AMD risk; study finds glaucoma care cost-effective
May 01, 2009 |
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Highlights of May’s Ophthalmology, the journal of the American Academy of Ophthalmology (Academy), include a new analysis of dietary factors and risks for age-related macular degeneration (AMD), and a landmark study on gla ...
Blood testing, mosquito style
Apr 24, 2009 |
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A skin patch could one day provide a less-invasive alternative for diabetics who need to take regular samples of their own blood to keep glucose levels in check. The common method of drawing blood from fingertips and using ...
Diabetes? Some beat it, but are they cured?
Apr 19, 2009 |
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(AP) -- JoAnne Zoller Wagner's diagnosis as prediabetic wasn't enough to compel her to change her habits and lose 30 pounds. Not even with the knowledge her sister had died because of diabetes.
Sad or Angry Teens Have Less Success With Diabetes Control
Medicine & Health / Psychology & Psychiatry
Mar 03, 2009 |
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(PhysOrg.com) -- Not only do teens with type 1 diabetes have the normal adolescent concerns of school, work and social activities, but they are responsible for taking insulin, monitoring blood glucose (blood sugar) levels ...
Higher blood sugar levels linked to lower brain function in diabetics, study shows
Feb 11, 2009 |
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Results of a recent study conducted by researchers at Wake Forest University Baptist Medical Center and colleagues show that cognitive functioning abilities drop as average blood sugar levels rise in people with type 2 diabetes.
Body clock linked to diabetes and high blood sugar
Dec 07, 2008 |
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Diabetes and high levels of blood sugar may be linked to abnormalities in a person's body clock and sleep patterns, according to a genome-wide association study published today in the journal Nature Genetics.
