GLORIA

GEOMAR Library Ocean Research Information Access

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
Document type
Years
  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Nephrology 2 (1996), S. 0 
    ISSN: 1440-1797
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Summary: Quantitative methods are frequently used to analyse the structure of renal glomeruli. However, on most occasions, measurements are made on glomerular profiles (the two-dimensional samples of glomeruli seen in histological sections), and provide little or no information about the structure of whole, three-dimensional glomeruli. Stereology is the discipline concerned with the quantitative analysis of three-dimensional structures. With stereology one can estimate the total number of glomeruli in kidneys, as well as mean glomerular volume, the number of cells in glomeruli, and the length and surface area of glomerular capillaries. In addition to providing a means for detecting structural differences between glomeruli from different specimens, stereology provides quantitative structural information that can be correlated with quantitative physiological, biochemical and molecular data. Over the past decade we have witnessed the development of a new generation of unbiased, cost-efficient stereological methods that are ideally suited to analysing glomeruli. Some of these methods are introduced in this review, and then three recent studies from our laboratories that successfully utilized these methods are described. These studies concerned hypertension, kidney development, and the pathogenesis of focal and segmental glomerulosclerosis.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental pharmacology and physiology 23 (1996), S. 0 
    ISSN: 1440-1681
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: 1. Chronic angiotensin converting enzyme (ACE) inhibition or AT1 antagonism during postnatal development in the rat has been shown to cause renal tubular and vascular damage, particularly in the outer medulla.2. The effects of ACE inhibition were investigated at a stage of development before the renal outer medulla is fully established.3. Sprague-Dawley rat pups were given daily i.p. injections of either enalapril or saline from days 3–10. At day 11, kidneys were perfusion-fixed for either electron microscopy or immunocytochemistry. Sections were incubated in proliferating cell nuclear antigen (PCNA) antisera and the avidin-biotin immunoperoxidase method was used to detect an immunoreactive product, indicative of proliferating cells.4. Following enalapril treatment, the normal structural arrangement of the outer medulla was disrupted compared with controls. Cell proliferation (PCNA-positive cells) in the medullary rays was reduced in enalapril-treated kidneys compared with control kidneys.5. Thus, angiotensin II appears to be essential for normal tubular and vascular growth in postnatal renal development in the rat.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental pharmacology and physiology 23 (1996), S. 0 
    ISSN: 1440-1681
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: 〈list xml:id="l1" style="custom"〉1This brief review examines the evidence that angiotensin II (AngII) is essential for kidney development.2Several components of the renin-angiotensin system (RAS) are detected in the foetal kidney early in development.3Angiotensin II is essential for normal foetal and neonatal renal function.4Angiotensin II receptors transduce important signals leading to growth and development.5Angiotensin receptor subtypes show spatial and temporal specificity of localization throughout renal development.6Angiotensin converting enzyme (ACE) inhibition or AngII receptor blockade (specifically AT1 subtype blockade) results in functional and structural abnormalities of the developing kidney in both experimental and clinical situations.7While chronic postnatal RAS blockade in rats is associated with structural damage to tubules and blood vessels of the kidney, reports differ on whether treatment also affects glomerular induction and growth.8In metanephric organ culture, glomerular induction proceeds despite AngII receptor blockade.9In summary, the evidence suggests that AngII is not essential for nephron induction and glomerular development in the rat kidney. However, AngII is essential for normal growth and development of renal tubules and vasculature.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...