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Estimating age-specific trends in circulating testosterone and sex hormone-bi…
These identified the pubertal increases in serum testosterone in males peaking at 20 years of age and remaining stable thereafter until the eighth decade. In females, circulating testosterone peaked in late adolescence and declined gradually over the next two decades but remained stable across menopause and beyond. After early childhood, serum sex hormone-binding globulin declines to a nadir in…
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CORONARY ARTERY FISTULA
Coronary artery fistulae are rare abnormalities of the coronary arteries that are usually discovered incidentally on coronary angiogram. Most patients remain asymptomatic, and significant hemodynamic consequences are rarely observed. The following report describes the case of a patient presenting with symptoms of congestive cardiac failure due to multiple coronary artery fistulae.
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Prevention of chronic kidney disease: A global challenge
In view of the increasing number of patients requiring renal replacement therapy (RRT) every year worldwide, attention has focused over the last two decades on meeting the health care need of patients with end-stage renal failure (ESRF). More recently, increasing awareness of the growing burden of chronic kidney disease (CKD), with a large percentage of the population affected by early stages …
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Chronic kidney disease: the global challenge
The worldwide rise in the number of patients with chronic kidney disease (CKD) and consequent end-stage renal failure necessitating renal replacement therapy is threatening to reach epidemic proportions over the next decade, and only a small number of countries have robust economies able to meet the challenges posed. A change in global approach to CKD from treatment of end-stage renal diseas…
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Novel insights into acute kidney injuryechronic kidney disease continuum and …
Acute kidney injury (AKI) is an independent risk factor for chronic kidney disease (CKD). If injury is mild, a repair process can be adaptive and lead to complete renal recovery. However, severe injury will be accompanied by a maladaptive repair which usually leads to nephron loss, fibrosis, vascular rarefaction, and chronic inflammation. Although various mechanisms underlying AKI-CKD transitio…
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Angiotensin-converting enzyme inhibitors and receptor blockers in heart failu…
In clinical setting, congestive heart failure (CHF) and chronic kidney disease (CKD) often co-exist in patients due to common underlying predisposing factors. An intricate equilibrium between the cardiovascular and renal system is maintained through rennin angiotensin–aldosterone axis and autonomic nervous system. Consequent to favorable hemodynamic modification, angiotensin converting enzyme…
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Angiotensin receptor blockers are associated with lower mortality than ACE in…
Dual renin angiotensin system (RAS) blockade using angiotensin-receptor blockers (ARBs) in combination with angiotensin converting enzyme inhibitors (ACEIs) is reported to improve proteinuria in both diabetic and non-diabetic patients. However, its renoprotective effect and safety remain uncertain in patients with advanced chronic kidney disease (CKD). From January 1, 2000 through June 30, 2009…
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Update on Angiotensin II : New Endocrine Connections between the Brain, Adren…
In the brain, angiotensinergic pathways play a major role in chronic regulation of cardiovascular and electrolyte homeostasis. Increases in plasma angiotensin II (Ang II), aldosterone, [Na+] and cytokines can directly activate these pathways. Chronically, these stimuli also activate a slow neuromodulatory pathway involving local aldosterone, mineralocorticoid receptors (MRs), epithelial sodium …
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Update on angiotensin AT2 receptors
This review updates major new findings and concepts introduced during the past year on the role of angiotensin II (Ang II) subtype 2 receptors (AT2Rs) in the control of blood pressure and renal function
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Physiology and Pathophysiology of the Intrarenal Renin-Angiotensin System: An…
The renin-angiotensin system (RAS) has a pivotal role in the maintenance of extracellular volume homeostasis and blood pressure through complex mechanisms. Apart from the well known systemic RAS, occurrence of a local RAS has been documented in multiple tissues, including the kidney. A large body of recent evidence frompharmacologic and genetic studies, particularly those using various transgen…
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