News tagged with blood
Phthalates: Study links chemicals widely found in plastics, processed food to elevated blood pressure in children, teens
Plastic additives known as phthalates (pronounced THAL-ates) are odorless, colorless and just about everywhere: They turn up in flooring, plastic cups, beach balls, plastic wrap, intravenous tubing and—according to the ...
Pediatrics 33 minutes ago | not rated yet | 0 |
The level of immunity to the recently circulating H7N9 influenza virus in an urban and rural population in Vietnam is very low, according to the first population level study to examine human immunity to the virus, which was ...
Diseases, Conditions, Syndromes 16 hours ago | 5 / 5 (1) | 0 |
(Medical Xpress)—Scientists at the School of Medicine have shown that their previously identified therapeutic approach to fight cancer via immune cells called macrophages also prompts the disease-fighting killer T cells ...
Cancer 21 hours ago | 5 / 5 (1) | 0 |
(Medical Xpress)—In a recent subgroup analysis of the largest blood pressure treatment trial in history, University of Alabama at Birmingham (UAB) researchers found that women and men react the same to ...
Cardiology 20 hours ago | 5 / 5 (1) | 0
(Medical Xpress)—International researchers are studying the salt intake of Indian adults to provide vital new data to aid the development of a national salt reduction strategy.
Health 22 hours ago | not rated yet | 0
Johns Hopkins researchers say they have discovered specific chemical alterations in two genes that, when present during pregnancy, reliably predict whether a woman will develop postpartum depression.
Psychology & Psychiatry May 21, 2013 | not rated yet | 0 |
Nearly 20 percent of kidneys that are recovered from deceased donors in the U.S. are refused for transplant due to factors ranging from scarring in small blood vessels of the kidney's filtering units to the organ going too ...
Medical research May 20, 2013 | 5 / 5 (2) | 0 |
(Medical Xpress)—Flinders University researchers are breaking new ground in a decade-long journey to pinpoint the function of two closely related proteins.
Diabetes May 20, 2013 | 5 / 5 (2) | 0 |
Optimal treatment of sleep apnea in patients with prediabetes improves blood sugar (glucose) levels and thus can reduce cardiometabolic risk, according to a study to be presented at the ATS 2013 International Conference in ...
Sleep apnea May 20, 2013 | not rated yet | 0 |
(Medical Xpress)—Akkermansia muciniphila is one of the many microbes that live in our intestines. This bacterium, which feeds on the intestine's mucus lining, comprises between 3 and 5 percent of the gut microbes of hea ...
Medical research May 14, 2013 | 4.8 / 5 (11) | 0 |
Touted for safety, ease and patient convenience, peripherally inserted central catheters have become many clinicians' go-to for IV delivery of antibiotics, nutrition, chemotherapy, and other medications.
Diseases, Conditions, Syndromes May 20, 2013 | not rated yet | 0
(HealthDay)—Blood levels of free fatty acids are associated with insulin resistance during young adulthood and cardiovascular risk factors in later adulthood, according to a study published online May 13 ...
Cardiology May 17, 2013 | not rated yet | 0 |
Raising hopes for cell-based therapies, UC San Francisco researchers have created the first functioning human thymus tissue from embryonic stem cells in the laboratory. The researchers showed that, in mice, ...
Immunology May 16, 2013 | 4.8 / 5 (5) | 0 |
(Medical Xpress)—Development of a sophisticated artificial pancreas holds potential to transform the lives of patients with Type 1 diabetes.
Diabetes May 16, 2013 | 5 / 5 (1) | 0 |
A new oral targeted drug, idelalisib (GS-1101), has the potential to stave off the need for additional treatments for relapsed or treatment-resistant chronic lymphocytic leukemia (CLL), according to a study led in part by ...
Cancer May 17, 2013 | not rated yet | 0 |
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.
For more information about Blood, read the full article at
This text uses material from Wikipedia and is available under the GNU Free Documentation License.