To evaluate the clinical efficacy of a novel negative pressure ureteroscopic lithotripsy (NP-URL) compared to standard ureteroscopic lithotripsy (S-URL) for treating ureteral stones.

METHODS:

A total of 284 patients diagnosed with ureteral stones and who underwent ureteroscopic lithotripsy between December 2020 and May 2022 at our hospital were included in the study. Among them, 146 cases underwent NP-URL and 138 cases underwent S-URL. The negative pressure device used in NP-URL consists of a 5F ureteric catheter and a tee joint. We evaluated the operative duration, stone-free rate, incidence of postoperative complications, stone retropulsion rate, and adjunct procedure rate between the two groups.

RESULTS:

The mean operative duration was significantly shorter in the NP-URL group compared to the S-URL group (30.17 ± 5.84 minutes vs 34.84 ± 6.62 minutes; P＜.05). Additionally, the NP-URL group had a lower incidence of postoperative fever (1.4% vs 8.7%; P＜.05), reduced stone retropulsion rate (3.4% vs 11.6%; P＜.05), and a statistically lower rate of adjunct procedures (5.5% vs 14.5%, P＜.05). The NP-URL group also demonstrated a higher primary stone-free rate (91.8% vs 81.9%; P＜.05). However, there was no significant difference in the final stone-free rate between the NP-URL and S-URL groups (P＞.05).

CONCLUSION:

NP-URL potentially reduces operative duration, significantly decreases the incidence of postoperative complications, and achieves better primary stone-free rates compared to S-URL.

2021-11-01·Food chemistry1区 · 农林科学

Aroma profiles of green tea made with fresh tea leaves plucked in summer

1区 · 农林科学

Article

作者: Schwab, Wilfried ; Guo, Xiangyang ; Wan, Xiaochun ; Ho, Chi-Tang

There is a claim that fresh tea leaves plucked in summer (FTL-S) are not suitable for green tea processing, but there is no scientific evidence to support this claim. The aroma properties of green tea (GT-S) made with FTL-S were studied by the analysis of volatiles during process, coupled with odor activity value (OAV) determination. The odor profiles of dry tea and tea infusion were investigated by sensory evaluation. The GT-S contained higher proportions of alcohols, alkenes and heterocyclic compounds with strong fragrance and nutty odors as well as moderate floral odor in comparison with FTL-S. β-Damascenone and 2-ethyl-3,5-dimethylpyrazine with the OAV of 54,290 and 1.15, respectively, were the aroma-active compounds imparting woody and nutty odors in GT-S, respectively. Current study provides an alternative way to use FTL-S for green tea production, and we also found that L-theanine is an important aroma precursor for the formation of green tea aroma.

2021-01-13·Journal of agricultural and food chemistry1区 · 农林科学

Effect of Particle Size and Interface Composition on the Lipid Digestion of Droplets Covered with Membrane Phospholipids

1区 · 农林科学

Article

作者: Zhang, Xiuxiu ; Zhang, Yu ; Liu, Lu ; Li, Xiaodong ; Pan, Yue

The particle size and fatty acid release of droplets covered with milk fat globule membrane phospholipids with different particle sizes (large/MPL-L; medium/MPL-M; and small/MPL-S) and emulsions with different sources (droplets covered with MPL/MPLs; human milk/HM; and infant formula/IF) were investigated using an infant digestion model. During digestion, droplets exhibited different degrees of aggregation, and the order of the particle size was MPL-L > MPL-M > MPL-S. MPL-M and MPL-S were significantly higher than MPL-L in the release of free fatty acids. No significant difference was observed in the FFA release rate between MPLs and HM. However, the rate was significantly higher than that of IF in the intestinal stage. Compared to IF, a higher content of long-chain polyunsaturated fatty acids and a lower content of saturated fatty acid were observed in MPLs and HM.

100 项与 FGL-S 相关的药物交易

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