- Calcium oxalate is a
chemical compound that forms needle-shaped crystals. Its chemical
formula is CaC2O4.
- Bladder stones or
uroliths are a common occurrence in animals, especially in domestic
animals such as dogs and cats.
- The stones form in the
urinary bladder in varying size and numbers secondary to infection,
dietary influences, and genetics.
- Calcium oxalate stones
form in an acidic to neutral urine.
- Two types naturally
occur, calcium oxalate monohydrate, or whewellite (CaC2O4·H2O), and
calcium oxalate dihydrate, or weddellite (CaC2O4·2H2O). Their appearance
can be rough, smooth, spiculated, or jackstone.
- Calcium oxalate stones
form more readily in animals with hypercalcaemia, which can caused by
Addison's disease or certain types of cancer.
- Hypercalcaemia results
in hypercalciuria, which can also be caused by Cushing's syndrome or
hyperparathyroidism.
- Single crystals of
whewellite and weddellite were obtained from urinary calculi.
- Urinary stone formation
is a major example of pathological mineralization.
- Kinetic analysis of the
initial rates were proportional with the relative supersaturation with
respect to calcium oxalate monohydrate.
- A calcium oxalate
monohydrate crystal growth inhibitor has been isolated from human kidney
tissue culture medium by using EAE-cellulose batch chromatography
followed by DEAE-cellulose and Sephacryl S-200 chromatography.
- COM crystals were grown
in urine, in different gels (by the counter diffusion method) and by
direct pouring of reagent solutions together.
- In urine the crystals
took several days to grow up to 30- 50 mm in size without any impurities
and up to 1 mm in size with addition of calcium chloride and potassium
oxalate.
- The mechanism and
kinetics of growth and dissolution of substances constituting renal
stones is important for understanding the etiology of urolithiasis and
working out the methods of treatment.
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General
Information
- Information about
Calcium Oxalate
- Types of
Crystals
- Information about
bladderstone
- The crystal structures
of whewellite and weddellite: re-examination and comparison
Consultant
- Consultant from
Chennai
- Consultant from Europe
- Consultant from
Florida
- Consultant from
Indianapolis
- Consultant from
UnitedKingdom
- Consultant from
USA
Process
- Inhibition of calcium
oxalate monohydrate crystal growth using Algerian medicinal
plants
- Growth and
dissolution of calcium oxalate monohydrate crystals
- Growth of calcium
oxalate monohydrate on uric acid crystals at sustained
supersaturation
- Inhibition of the
Crystal Growth and Aggregation of Calcium Oxalate by Algae Sulfated
Polysaccharide
-
Purification and Characterization
of a Calcium Oxalate Monohydrate Crystal Growth Inhibitor from
Human Kidney Tissue Culture Medium
- Identification of
intracellular calcium oxalate crystals in chamelaucium uncinatum
Technology
- Modification of gel
technique for micro-crystals of biomaterials: In situ growth and
dissolution studies
- Measurement of
metastability and growth of calcium oxalate in native urine by calcium
electrode
- Kidney Stone Analysis
by Nicolet FTIR spectrometer
- Thermal treatment of
whewellite –a Thermal analysis and Raman spectroscopic study
- Application of
Vibrational Spectroscopy in Identification of the Composition of the
Urinary Stones
- Nondestructive analysis
of urinary calculi using micro computed tomography
- Weight Loss Determined
from Mass Spectrometry Trend Data in a Thermogravimetric/Mass
Spectrometer System
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Guide
- Handling of Oxalate and
Calcium Oxalate by Renal Tubule Epithelial Cells
- Urine sediment
atlas
Functions
- Managing calcium
oxalate scale in the bleach plant
- Mechanisms involved in
calcium oxalate endocytosis by Madin-Darby canine kidney cells
- Inhibition of calcium
oxalate monohydrate by poly(acrylic acids) with different
end-groups
- A study of primary
nucleation of calcium oxalate monohydrate: I-Effect of
supersaturation
Patent
- Methods and composition
for detecting and treating kidney diseases associated with adhesion of
crystals to kidney cells
- Manufacture of oxalic
acid dihydrate
- Process of removing
calcium oxalate scale
Report
- Increased calcium
oxalate monohydrate crystal binding to injured renal tubular epithelial
cells in culture
- Calcium Oxalate
Urolithiasis in the Canine Patient
- Direct nucleation of
calcium oxalate dihydrate crystals onto the surface of living renal
epithelial cells in culture
- Correlation Between
Urinary Tract Pure Stone Composition and Stone Morphology on Plain
Abdominal Film
-
First Evidence for the Presence of
Weddellite Crystallites in Opuntia ficus indica Parenchyma
- Modern surgical
treatment of ureteral calculi
- Sonography of a Human
Jackstone Calculus
- A modeling study of the
role of proteins in calcium oxalate kidney stone formation
- A quantitative study on
the chemical composition of renal stones and their fluoride content from
Anantapur District, Andhra Pradesh, India
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