Objective To analyze the composition of urinary stones in Taizhou of Zhejiang province.Methods Clinical data of 1 022 patients with urinary stones admitted in Taizhou Hospital of Zhejiang province were retrospectively reviewed.The samples of urinary stones were collected and analyzed by infrared spectrophotometry.Results There were 722 males and 300 females with a male to female ratio of 2.4:1 and with a mean age of (53.4±13.6) years (14-88 years).Among 1 022 patients,the stones with single composition were found in 299 cases (29.3%);the most common single-component was anhydrous uric acid (15.9%),followed by calcium oxalate monohydrate (12.0%).The mixed stones were found in 723 cases (70.7%);the most common mixture was calcium oxalate monohydrate,calcium oxalate dehydrate and carbonate apatite mixture (316 cases,30.9%).Calcium oxalate (58.9%,602/1 022) was the most common major component and frequently seen in upper urinary tract stones,followed by uric acid (21.8%,223/1 022).Uric acid calculi was predominant component in male patients(χ2=30.97,P=0.00),while the rate of infection stones was higher in women (χ2=60.69,P=0.00).The mean age of patients with uric acid stones was 59.4 years,which was older than that with other components (t=7.62,P=0.00).The uric acid stones were more common in upper urinary tract stones(χ2=42.97,P=0.00).The mean age of patients with infection stones was 49 years,which was younger than that with other types of stones(t=4.87,P=0.00).Conclusion Mixed stones with calcium oxalate monohydrate,calcium oxalate dehydrate and carbonate apatite are the predominant urinary stones in Taizhou of Zhejiang province,while the most common single-component stones are anhydrous uric acid stones.Location,age and sex are associated with the types of urinary stones.

This study was aimed at identifying the bioactive components of the crude and stir-baked hawthorn for invigorating spleen and promoting digestion, respectively, to clarify the processing mechanism of hawthorn by applying the partial least squares(PLS) algorithm to build the spectrum-effect relationship model. Firstly, different polar fractions of crude and stir-baked hawthorn aqueous extracts and combinations of different fractions were prepared, respectively. Then, the contents of 24 chemical components were determined by ultra-high performance liquid chromatography-mass spectrometry. The effects of different polar fractions of crude hawthorn and stir-baked hawthorn aqueous extracts and combinations of different fractions were evaluated by measuring the gastric emptying rate and small intestinal propulsion rate. Finally, the PLS algorithm was used to establish the spectrum-effect relationship model. The results showed that there were significant differences in the contents of 24 chemical components for different polar fractions of crude and stir-baked hawthorn aqueous extracts and combinations of different fractions, and the gastric emptying rate and small intestinal propulsion rate of model rats were improved by administration of different polar fractions of crude and stir-baked hawthorn aqueous extracts and combinations of different fractions. The bioactive components of crude hawthorn identified by PLS models were vitexin-4″-O-glucoside, vitexin-2″-O-rhamnoside, neochlorogenic acid, rutin, gallic acid, vanillic acid, citric acid, malic acid, quinic acid and fumaric acid, while neochlorogenic acid, cryptochlorogenic acid, rutin, gallic acid, vanillic acid, citric acid, quinic acid and fumaric acid were the bioactive components of stir-baked hawthorn. This study provided data support and scientific basis for identifying the bioactive components of crude and stir-baked hawthorn, and clarifying the processing mechanism of hawthorn.
Animals ; Rats ; Spleen ; Crataegus ; Quinic Acid ; Least-Squares Analysis ; Vanillic Acid ; Algorithms ; Digestion