weddellite

11/01/1995 - "For the 49 heterogeneous calculi, this study showed that when weddellite was the predominant component of a stone, the friability tended to increase. "
01/01/2004 - "Weddellite was found in 77% of calculi. "
01/01/1983 - "The origin of weddellite within the calculus remains to be determined."
01/01/1983 - "Weddellite in submandibular gland calculus."
12/01/2005 - "In contrast, the increasing occurrence of weddellite calculi in stone forming women aged more than 50 years could be the consequence of post-menopausal therapy. "

06/01/2004 - "Automated Fourier transform infrared analysis of urinary stones: technical aspects and example of procedures applied to carbapatite/weddellite mixtures."
11/10/1976 - "25 to 30% of calcium oxalate urinary calculi consist of the metastable Weddellite crystal phase. "
10/01/2019 - "The data showed that the majority of urinary calculi were calcium oxalate, either whewellite or weddellite. "
03/01/2018 - "Most urinary calculi have as a major component calcium oxalate which occurs mainly in two crystalline forms: Calcium oxalate monohydrate (whewellite) and calcium oxalate dihydrate (weddellite). "
08/01/2001 - "The selected constituents were whewellite, weddellite, and uric acid from which approximately 40% of the urinary calculi obtained from Macedonia patients are composed. "

10/01/2021 - "Kidney stones were composed of weddellite and carbapatite. "
01/01/1986 - "This notwithstanding, it is concluded that epitactic catalysis cannot and should not be considered a common mechanism for the formation of whewellite from weddellite (and vice versa) or of kidney stones in general."
06/09/1978 - "The presence of weddellite along with urate in the concretions suggests a resemblance to human kidney stones, although, unlike the latter, the concretions in Molgula do not seem to be pathologic deposits."
11/21/2010 - "This study is focused on the stability of weddellite, the dihydrate phase of calcium oxalate [CaC(2)O(4)·(2 + x)H(2)O], mainly detected in kidney stones and in oxalate films found on the surfaces of several ancient monuments. "
12/01/2020 - "Polarized light microscopy revealed 100% calcium oxalate kidney stone composition (It was 50% Weddellite and 50% Whewellite). "

12/01/2000 - "The patients with a recurrence or growth of a stone had more frequently weddellite in the concrement and had also more frequently a bilateral residual or conservatively managed urolithiasis (p < 0.0001). "
12/01/2018 - "Canine calcium oxalate urolithiasis: Frequency of Whewellite and Weddellite stones from 1979 to 2015."
04/17/1999 - "Type IIa urinary lithiasis (calcium oxalate dihydrate, weddellite) has a calcium-dependent structure implicating hyper-calciuria for its formation. "
01/01/2004 - "Although there is no comprehensive study on urolithiasis incidence and prevalence in Iran, it can be concluded that whewellite and weddellite may be the most common components of urolithiasis in Iran and uric acid calculi are the most common pure calculi. "
08/01/2020 - "The indications of oral calcium load were: presence of an active urolithiasis without any obvious explanation after ruling out the "classical" biological abnormalities, or presence of hypercalciuria with stones composed of weddellite or carbapatite crystals. "

09/01/2005 - "Over the same interval of pCaOx, weddellite crystalluria ranged from 1.5% to 72.2% in control subjects. "
09/01/2005 - "1,940 urine samples (18.2%) presented weddellite crystalluria, which was pure in 1,378 urine samples from stone patients (13.5%) and 43 urine samples (9.5%) from controls (p < 0.05). "
09/01/1999 - "When compared to stone composition, crystalluria was mainly made of weddellite in urines from 68% of patients with weddellite-rich calculi. "
07/01/2006 - "In the man, the Weddellite is dominant (69.6%) in the crystalluria while in the woman the Weddellite yields the place to the two phases of the uric acid (60%). "
09/01/2005 - "The number of crystals and aggregates and the maximum dimensions of aggregates were only influenced by the urinary citrate concentration when the pCaOx product was < 2 (mmol/l)2. The main determinant of the frequency and characteristics of weddellite crystalluria is the pCaOx molar product. "