Dementia treatments linked with serious side effects: Study
Several antipsychotic treatments given to patients with dementia have been linked to serious side effects including heart failure, a study published Thursday has found.
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Several antipsychotic treatments given to patients with dementia have been linked to serious side effects including heart failure, a study published Thursday has found.
5 hours ago
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Researchers have developed a new shoe insole technology that helps reduce the risk of diabetic foot ulcers, a dangerous open sore that can lead to hospitalization and leg, foot or toe amputations.
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European researchers are pioneering a vaccine and treatment for amyotrophic lateral sclerosis.
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A study led by the Centre for Epidemiological Studies on STIs and AIDS of Catalonia (CEEISCAT)—a group from the Germans Trias i Pujol Research Institute (IGTP), the Fundació Lluita contra les Infeccions (FLI), and Odense ...
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In an ischemic stroke, an artery in the brain is blocked by blood clots and the brain cells can no longer be supplied with blood as a result. Doctors must therefore act quickly and unblock the artery with the help of catheters. ...
20 hours ago
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Cedars-Sinai investigators have identified significant variations in the microbes of the small bowel (small intestine) are strongly associated with various body weights, from a normal body mass index, or BMI, to having obesity.
21 hours ago
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For the roughly 1.5 million Americans per year who survive a traumatic brain injury, health outcomes vary widely. Not only can these injuries lead to a loss of coordination, depression, impulsivity, and difficulty concentrating, ...
21 hours ago
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An immune-compromised man with a year-and-a-half-long COVID infection served as a breeding ground for dozens of coronavirus mutations, a new study discovered.
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A collaborative research team has pioneered a new stem cell model to help personalize treatment for patients suffering from rare forms of immunodeficiency. The research findings were published in the Journal of Allergy and ...
21 hours ago
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Managing a stroke victim's blood sugar levels after they receive powerful clot-busting drugs might help them survive their health crisis, a new trial finds.
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Blood is a specialized bodily fluid that delivers necessary substances to the body's cells — such as nutrients and oxygen — and transports waste products away from those same cells.
In vertebrates, it is composed of blood cells suspended in a liquid called blood plasma. Plasma, which comprises 55% of blood fluid, is mostly water (90% by volume), and contains dissolved proteins, glucose, mineral ions, hormones, carbon dioxide (plasma being the main medium for excretory product transportation), platelets and blood cells themselves. The blood cells present in blood are mainly red blood cells (also called RBCs or erythrocytes) and white blood cells, including leukocytes and platelets. The most abundant cells in vertebrate blood are red blood cells. These contain hemoglobin, an iron-containing protein, which facilitates transportation of oxygen by reversibly binding to this respiratory gas and greatly increasing its solubility in blood. In contrast, carbon dioxide is almost entirely transported extracellularly dissolved in plasma as bicarbonate ion.
Vertebrate blood is bright-red when its hemoglobin is oxygenated. Some animals, such as crustaceans and mollusks, use hemocyanin to carry oxygen, instead of hemoglobin. Insects and some molluscs use a fluid called hemolymph instead of blood, the difference being that hemolymph is not contained in a closed circulatory system. In most insects, this "blood" does not contain oxygen-carrying molecules such as hemoglobin because their bodies are small enough for their tracheal system to suffice for supplying oxygen.
Jawed vertebrates have an adaptive immune system, based largely on white blood cells. White blood cells help to resist infections and parasites. Platelets are important in the clotting of blood. Arthropods, using hemolymph, have hemocytes as part of their immune system.
Blood is circulated around the body through blood vessels by the pumping action of the heart. In animals having lungs, arterial blood carries oxygen from inhaled air to the tissues of the body, and venous blood carries carbon dioxide, a waste product of metabolism produced by cells, from the tissues to the lungs to be exhaled.
Medical terms related to blood often begin with hemo- or hemato- (also spelled haemo- and haemato-) from the Ancient Greek word αἶμα (haima) for "blood". In terms of anatomy and histology, blood is considered a specialized form of connective tissue, given its origin in the bones and the presence of potential molecular fibers in the form of fibrinogen.
This text uses material from Wikipedia, licensed under CC BY-SA