Comme pour un controle de la glycemie, il suffit de deposer son sang sur une bandelette speciale (?-cetone).
Polyurea : is a condition in which your body urinates more than usual and passess excessive and abnormally large amount of urine each time you urinate. Unexplained weight Loss leading to a rapid decrease in body weight, may be a warning sign of diabetes. Blurred vision is one of the common symptoms of diabetes mellitus which refers to the loss of sharpness of vision and the inability to see fine details.
One common sign that a person’s diabetes and acetone levels are out of control is the presence of acetone breath. People with diabetes develop vomiting when their sugars become abnormally high or low (Hyperglycemia or hypoglycemia) because the sugar and insulin balance is disturbed. Diabetic individuals with poor control of their blood sugar levels are more prone to developing Candida yeast infections in their gastrointestinal tract as compared to people with controlled blood glucose levels.
Ayurvedic Medicines for DiabetesGymnema Sylvestre : Effective Natural Treatment for Diabetes. In humans, the kidneys are fist-sized organs located in the region of the lower back (figure 26.10a).
The formation of urine within the mammalian kidney involves the movement of several kinds of molecules between nephrons and the capillaries that surround them. As in all mammals and birds, the amount of water excreted in your urine varies according to the changing needs of your body.
This action completes a negative feedback loop and helps to maintain homeostasis of blood volume and osmolality.
ADH causes the walls of the distal tubules and collecting ducts in your kidneys (see figure 26.10c) to become more permeable to water, thus increasing the amount of water they absorb from the urine as it passes through your kidneys 6. Under conditions of maximal ADH secretion, you excrete only 600 milliliters of highly concentrated urine per day. A drop in blood Na+ concentration is normally compensated by the kidneys under the influence of another hormone, aldosterone, which is also secreted by your brain. The reabsorption of Na+ is followed by Cl" and by water, so aldosterone has the net effect of promoting the retention of both salt and water.
Een andere groep van eiwitten zijn de antistoffen die het lichaam helpen verdedigen tegen ongewenste indringers (bacteriën en virussen). In plasma zitten tal van hormonen, boodschapperstoffen, die allerlei organen tot activiteit aanzetten. Being more physically active, limiting fat and calorie intake, and losing weight can help in keeping type 2 diabetes in control and keep check on symptoms of Diabetes Mellitus. Each kidney receives blood from a renal artery, and it is from this blood that urine is produced. The mammalian urinary system contains two kidneys, each of which contain about a million nephrons that lie in the renal cortex and renal medulla.
Driven by the blood pressure, small molecules are pushed across the thin walls of the glomerulus to the inside of the Bowman’s capsule 1. Filtrate from the glomerulus passes down the proximal tubule into the descending arm of the loop of Henle.
At the turn in the loop, the walls of the tubule become permeable to salts but much less permeable to water.
In the distal tubule, substances are also added to the urine by a process called tubular secretion 4.
The tubule then empties into a collecting duct that passes back through the tissue of the kidney.
The mammalian kidney pushes waste molecules through a filter and then reclaims water and useful metabolites and ions from the filtrate before eliminating the residual urine. Acting through the mechanisms described in this chapter, your kidneys excrete a hypertonic urine when your body needs to conserve water.
As a result, the volume of your blood, your blood pressure, and the salt levels of your blood plasma are all maintained relatively constant by the kidneys, no matter how much water you drink.
The increased absorption of water from the kidneys feeds back to the osmoreceptors (the dashed line), causing a reduction in the secretion of ADH.

A person who lacks ADH has the disorder known as diabetes insipidus and constantly excretes a large volume of dilute urine.
Indeed, under conditions of maximal aldosterone secretion, Na+ may be completely absent from the urine.
Bloed bestaat voor ongeveer 55% uit bloedvloeistof (plasma) en voor ongeveer 45% uit bloedcellen. Een voorbeeld van enzymen zijn de stollingsfactoren die er voor zorgen dat het bloed bij verwondingen stolt. De rode bloedcellen (1) hebben een ronde schijfvorm, de witte bloedcellen (2) zijn groter dan de rode bloedcellen en zijn er in verschillende soorten.
Rode bloedcellen (erytrocyten)De rode bloedcel is voornamelijk gevuld met het eiwit hemogobine.
Witte bloedcellen (leukocyten)De witte bloedcellen zijn een verzameling van verschillende soorten cellen met verschillende vormen. Bloedplaatjes (trombocyten)Bloedplaatjes zijn de kleinste bloedcellen en hebben een platte vorm.De bloedplaatjes spelen een belangrijke rol in de bloedstolling. Some people don’t find out they have it until they get problems from long-term damage caused by the disease. A person who has polyphagia must be examined by a physical to confirm that it is a symptom of diabetes. Urine drains from each kidney through a ureter, which carries the urine to a urinary bladder.
The Bowman’s capsule empties into the proximal tubule, which reclaims most of the water (75%), as well as molecules useful to the body, such as glucose and a variety of ions. The proximal tubule is connected to a long, narrow tube called a renal tubule (labeled 2 through 4), which is bent back on itself in its center.
Blood cells and large molecules like proteins cannot pass through, and as a result the blood that enters the glomerulus is divided into two paths: nonfilterable blood components that are retained and leave the glomerulus in the bloodstream, and filterable components that pass across and leave the glomerulus in the urine. The walls of this descending arm are impermeable to either salts or urea but are freely permeable to water.
As the concentrated filtrate passes up this ascending arm, these nutrients pass out into the surrounding tissue 3, where they are carried away by blood vessels.
This active transport process secretes into the urine other nitrogenous wastes such as uric acid and ammonia, as well as excess hydrogen ions. Unlike the tubule, the lower portions of the collecting duct are permeable to urea, some of which diffuses out into the surrounding tissue (that is why the tissue surrounding the descending arm of the loop of Henle has a high urea concentration indicated by the darker pink color in the figure).
The kidneys also regulate the plasma Na+ and K+ concentrations and blood pH within narrow limits. The primary stimulus for ADH secretion into your bloodstream is an increase in the osmolality (concentration of salt) of the blood plasma.
When the secretion of ADH is reduced, the walls become less permeable, and you excrete more water in your urine. Such a person may become severely dehydrated and succumb to dangerously low blood pressure. Mineralen spelen onder andere een belangrijke rol in de overdracht van energie in het lichaam en bij de vorming van botweefsels.
Hemoglobine, het eiwit dat aan bloed de rode kleur geeft, is belangrijk voor het transport van zuurstof. Bij een verwonding waarbij een bloedvat is beschadigd gaan de bloedplaatjes naar de bewuste plaats.
Within each capsule an arteriole enters and splits into a fine network of vessels called a glomerulus (labeled 1 in the figure). The collecting duct operates as a water conservation device, reclaiming another 14% of water from the urine so that it is not lost from the body. Blood pressure forces liquid from blood through the glomerulus and into the proximal tubule of the nephron, where glucose and small proteins are reabsorbed from the filtrate. Because the surrounding tissue has a high concentration of urea (for reasons we discuss later), water passes out of the descending arm by osmosis 2, leaving behind a more concentrated filtrate.
In the upper region of the ascending arm are active transport channels that pump out salt (NaCl).

The high urea concentration in the tissue causes even more water to pass outward from the filtrate by osmosis 5. These homeostatic functions of the kidneys are coordinated primarily by hormones, which are chemical signals produced in one part of the body that influence events in other parts. The salt in each milliliter of plasma increases when you are dehydrated or when you eat salty food. This drop in osmolality inhibits ADH secretion, causing more water to remain in the collecting duct for excretion in your urine. Diverse andere eiwitten zijn verantwoordelijk voor het transport van hormonen, voedingstoffen en mineralen. De rode bloedcel is op deze manier verantwoordelijk voor het transport en afgifte van de brandstof zuurstof naar weefsels en organen en voor het transport van het verbrandingsproduct koolstofdioxide. Ook ruimen de witte bloedcellen andere lichaamsvreemde stoffen op.De meest voorkomende witte bloedcellen zijn de granulocyten, de lymfocyten en de monocyten. Zij hechten  aan de wand van het beschadigde vat en verkleven daar zodat de beschadiging wordt gedicht.
Within the kidney, the mouth of the ureter flares open to form a funnel-like structure, the renal pelvis.
As the filtrate passes, the renal tubule extracts another 10% of water in the descending loop. Human urine is four times as concentrated as blood plasma—that is, the collecting ducts remove much of the water from the filtrate passing through the kidney. The filtrate then passes through a loop arrangement consisting of the proximal tubule, the loop of Henle, and the collecting duct, all of which act to remove water from the filtrate.
It contains water, nitrogenous wastes (principally urea), nutrients (principally glucose and amino acids), and a variety of ions. Left behind in the filtrate is the urea that initially passed through the glomerulus as nitrogenous waste. The filtrate that is left in the collecting duct after salts, nutrients, and water have been removed is urine. Hemoglobine geeft aan de rode bloedcel en dus aan het bloed de rode kleur.Op het oppervlak van de rode bloedcel kunnen in grote aantallen suikerachtige verbindingen zitten. The renal pelvis, in turn, has cup-shaped extensions that receive urine from the renal tissue. Your kidneys achieve this remarkable degree of water conservation by a simple but superbly designed mechanism: The duct bends back alongside the nephron tube, and the duct is permeable to urea.
The water is then collected by blood vessels and transported out of the kidney to the systemic (body) circulation. A decrease in extracellular Na+ also causes more water to be drawn into your cells by osmosis, partially offsetting the drop in plasma osmolality but further decreasing your blood volume and blood pressure.
This tissue is divided into an outer renal cortex (containing blood vessels in figure 26.10b) and an inner renal medulla (containing the cup-shaped structures).
These walls withhold proteins and other large molecules in the blood, while passing water, small molecules, ions, and urea, the primary waste product of metabolism. Osmoreceptors in the hypothalamus 3 respond to the elevated blood osmolality by triggering a sensation of thirst 4 and by an increase in the secretion of ADH 5. If Na+ deprivation is severe, the blood volume may fall so low that there is insufficient blood pressure to sustain your life. This greatly increases the local salt (urea) concentration in the tissue surrounding the tube, causing water in urine to pass out of the tube by osmosis. The salty tissue sucks up water from the urine like blotting paper, passing it on to blood vessels that carry it out of the kidneys and back to the bloodstream.

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