Aldosterone

Overweight male teens with normal blood pressures showing signs of heart damage

... in high school in Augusta, Ga., found the hormone aldosterone highest among the overweight males. Early interven...ether we should be screening for and treating high aldosterone in obese males with normal pressures, particularly...how to screen." This first evidence of elevated aldosterone levels and early heart damage in a pediatric popul...

New target for maintaining healthy blood pressure discovered

... Blood pressure was reduced in both types of genetically engineered mice relative to control littermates. The RAAS molecules renin, angiotensin I, and aldosterone were also reduced, a biological situation leading to lower blood pressure. The team found that the PG F2-alpha receptor is expressed in the smooth...

New target for heart failure therapy identified

...gs of the National Academy of Sciences , show that aldosterone production is mediated by a protein called beta-ar...tors when they are activated by angiotensin II. aldosterone is secreted by the adrenal cortex. Its levels are ... after myocardial infarction. The production of aldosterone was previously thought to be solely the result of ...

2009 DeLee Humanitarian Award goes to Marshall Lindheimer, M.D., of the University of Chicago

...es in filtered sodium during pregnancy. With another University of Chicago colleague, Edward Ehrlich, Lindheimer elucidated the roles of the hormones aldosterone and progesterone in sodium and potassium regulation during pregnancy. Working with John Davison, of Newcastle upon Tyne University, England, Lindhe...

Hormone linked to high blood pressure and blood vessel disease in African-Americans

...Milwaukee have linked higher levels of the hormone aldosterone to high blood pressure and blood vessel disease in African Americans. aldosterone is secreted by the adrenal glands and causes salt ...esearch. "Previously, we found relatively high aldosterone levels in African Americans with high blood pressu...

Study finds treatment fails to improve common form of heart failure

...leagues at Wake Forest Baptist are collaborating in another ongoing trial called TOPCAT (Treatment of Preserved Cardiac function heart failure with an aldosterone anTagonist), testing another medication for treatment of this condition. The study is being funded by the National Institutes of Health. Patients inte...

SAGE acquires 2 new medical journals

...e Renin-Angiotensin-Aldosterone System is the official journal of the Renin Academy, dedicated to highlighting the importance of the Renin Angiotensin aldosterone System (RAAS) in circulatory control and hypertension. JRAAS is published quarterly. We are delighted by the acquisition of these two important me...

Fashion Guru Nina Garcia Launches National Design Competition

...increase serum potassium include ACE inhibitors, angiotensin-II receptor antagonists, potassium-sparing diuretics, potassium supplementation, heparin, aldosterone antagonists, and NSAIDs. Patients should be counseled that OCs do not protect against HIV infection and other sexually transmitted diseases. The use...

Certain Cholesterol Drugs Show Their Limits

...onow explained. "The drug also lowered LDL, but it did other things they were not anticipating." One of these unintended consequences was to raise aldosterone levels, a hormone that helps keep a balance between sodium and potassium levels. "Aldosterone is a byproduct of angiotensin [a chemical that causes ve...

Hope For Bedwetting Children

...riety of other factors that could play a role in bedwetting, including mean arterial pressure, heart rate, atrial natriuretic peptide, angiotensin II, aldosterone and renin levels, but found no differences among the groups. Also, there was no difference in the amount of vasopressin between the two enuretic group...

Aldosterone in Medical Technology

FDA Approves Tekturna HCT(R) as Initial Treatment in Patients Unlikely to Achieve Their Blood Pressure Goals With a Single Agent

...ngle-pill combination of the only approved drug, Tekturna, that works by directly targeting renin and decreasing the activity of the renin angiotensin aldosterone system (RAAS) and, HCTZ, a diuretic. This results in more significant blood pressure reductions, compared to taking either drug alone." Hyper...

Study: Identical Doses of BiDil Components Are Not Bioequivalent to the Fixed Dose Combination-BiDil-Used in A-HeFT

...an angiotensin converting enzyme inhibitor or an angiotensin II receptor blocker, and a beta blocker, and many also received a cardiac glycoside or an aldosterone antagonist. In A-HeFT, self-identified black patients taking BiDil in addition to current standard heart failure therapies (n=518) experienced a sig...

Everest Data on Short- and Long-Term Use of Otsuka's Investigational Novel Treatment, Tolvaptan, Published in Journal of the American Medical Association and Featured in ACC's Late Breaking Clinical Trials

...ing physicians could choose conventional therapies for their patients, including diuretics, digoxin, ACE inhibitors, angiotensin II receptor blockers, aldosterone blockers, beta-blockers, nitrates, nesiritide and/or hydralazine.(1) "EVEREST adds to the collection of data on tolvaptan and its potential uses," s...

Aldosterone in Medical Dictionary

Aldosterone

Aldosterone is a hormone that increases the reabsorption of sodium and water and the release (secretion) of potassium in the kidneys. This increases blood volume and therefore, increases blood pressure. Many drugs, such as... An aldosterone test is done to measure the level of the...

Vasodilation

...ated by antagonistically acting mediators. ... ... function in human subjects as indexed by flow-mediated arterial vasodilation . ... Key Words: aldosterone • hypertension • renin • ultrasonics • vasodilation ... BK promotes vasodilation ,1 exerts antiproliferative effects,2 inhibits thrombin ....

Renin

... renin inhibitor ... The renin - angiotensin - aldosterone system plays an important role in ... pathways fo...'s Syndrome ... Plasma Renin Activity and Plasma aldosterone Concentrations, Measured in the ... Plasma re...egnancy and in diets with ... Describes when aldosterone and renin tests are ordered, how these tests ar...

Potassium

...the results of a potassium test might mean Find information on this disorder of high potassium , its causes, incidence and risk factors. ... aldosterone regulates kidney removal of sodium and potassium . ... Potassium is a mineral involved in electrical and ... Many foods contain potassi...

Hyperkalemia

...um, its causes, incidence and risk factors. ... aldosterone can result in hyperkalemia with an increase in ...cases of hyperkalemia are caused by ... Lack of aldosterone can result in hyperkalemia with an increase in ...kalemia are caused by disorders that ... Lack of aldosterone can result in hyperkalemia with an increase in ...

Hyperaldosteronism

...osteronism, is a medical condition where too much aldosterone is produced by the adrenal glands, which can lea...nism , a disease caused by excess production of aldosterone by the adrenal glands. ... is seen in hyperaldos...osteronism is due to the autonomous secretion of aldosterone by ... In primary hyperaldosteronism with ele...

Chloride

...... consisting of two elements, one of which is chlorine, as sodium chloride , NaCl. ... ... may lower serum chloride measurements include: aldosterone ... A greater-than-normal level of chloride is called hyperchloremia. It may be due to: ... Chloride , Arizona is the oldest mining town in Ari...

Aldosteronism

...steronism , is a medical condition where too much aldosterone is produced by the adrenal glands, which can lea...overproduction of the mineralocorticoid hormone aldosterone by the adrenal glands. aldosterone causes increase in sodium and water... Blood...

Aldosterone in Biological News

Researchers' discovery may lead to hypertension treatment

...mone. Prior to the discovery, researchers knew that a human steroid called aldosterone activates the kidney to reabsorb sodium and excrete potassium, which led th...e rat's urine but kept potassium levels constant. Schroeder said that while aldosterone (which does the opposite) is a steroid hormone, this newly discovered molec...

Understanding hypertension in African Americans proves elusive

...xtremely high is African Americans. Alterations in aldosterone regulation may play a role because aldosterone causes the kidney to retain salt. Brown said he wa...vels. In the study, he found that the level of aldosterone was related to how the two racial groups distribut...

Evolution of 'irreducible complexity' explained

...he experiments showed that the receptor had the capacity to be activated by aldosterone long before the hormone actually evolved. Thornton's group then showed...ade it "preadapated" to be recruited into a new functional partnership when aldosterone later evolved. By recapitulating the evolution of the receptor's DNA seque...

Aldosterone in Biological Definition

Hormone

...ating hormone (TSH) thyrotropin-releasing hormone (TRH) Steroid hormones : Glucocorticoids cortisol Mineralocorticoids aldosterone Sex steroids Androgens testosterone dehydroepiandrosterone (DHEA) dehydroepiandrosterone sulfate (DHEAS) androstenedione ...

Kidney

...pH 7.4. Urine, on the other hand, becomes either acidic at pH 5 or alkaline at pH 8. Sodium ions are controlled in a homeostatic process involving aldosterone which increases sodium ion absorption in the convoluted tubule. Any rise or drop in blood osmotic pressure due to a lack or excess of water is dete...

Nephron

...(such as glucose , amino acids , phosphates , and so on) according to the body's needs under hormonal control , or from anti-diuretic hormones , aldosterone , parathyroid hormone , atrial-natriuretic peptide and others. In this process urine is produced, and in doing so, eliminates wastes from the bod...

Osmoregulation

... osmoregulation. Kidneys regulate the amount of water in urine waste. With the help of naturally producing hormones such as antidiuretic hormone , aldosterone , and angiotensin II , the human body can increase permeability of the collecting ducts in the kidney to reabsorb water and prevent it from being exc...

Aldosterone in Biological Dictionary

Collecting tubules

...the nephrons to the ureter. It participates in electrolyte and fluid balance through reabsorption and excretion, processes regulated by the hormones aldosterone and... collecting tubule ( kə′lektiŋ ′tü′byül ) ( anatomy ) One of the ducts conveying urine from the renal tubules (nephrons) to the m...