A multicenter study on the effects of different methods of disinfecting medical external-use ultrasound probes.

Background: Microbial contamination of external-use ultrasound probes is a serious and overlooked issue. We assessed the effects of different methods of disinfecting medical external-use ultrasound probes.

Methods: On-site disinfection experiments were conducted at 10 hospitals; the tips and sides of external-use ultrasound probes were sampled before and after disinfection, and 3 disinfection methods were assessed (use of a new ultraviolet [UV] ultrasound probe disinfector, wiping with ordinary paper towels or cleaning with disinfectant wipes).

Piperlonguminine attenuates renal fibrosis by inhibiting TRPC6.

Ethnopharmacological Relevance: Liuwei Dihuang (LWDH) is a classic prescription that has been used to the treatment of "Kidney-Yin" deficiency syndrome for more than 1000 years in China. Recent studies have confirmed that LWDH can prevent the progression of renal fibrosis. Numerous studies have demonstrated the critical role that TRPC6 plays in the development of renal fibrosis.

[Determination of gypenoside XLVI and LVI in from Fujian by ultra-high performance liquid chromatography-charged aerosol detector].

(Thunb.) Makino contains dammarane-type triterpenoid saponins, similar to ginseng, with a host of pharmacological activities. However, its planting resources and chemical composition are quite complex.

[Qualitative analysis of Gynostemma longipes for medicinal usage].

The Qinling-Daba Mountains area is the main producing areas of Gynostemma longipes for medicinal usage, and samples of wild whole plants in Pingli, Shaanxi Province and Qingchuan, Sichuan Province were collected. The ultra-high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry(UHPLC-Q-TOF-MS~E) was used to profile the chemical compositions and analyze the similarities and differences of G. longipes samples in these areas.

Identification and Differentiation of Radix and Radix Preaparata through the Quantitative Analysis of Multicomponents by the Single-Marker Method.

The quantitative analysis of multicomponents by the single-marker (QAMS) method was established and the relationship between value (the ratio of the sum of the contents of emodin-8-O--D-glucopyranoside and physcion-8-O--D-glucopyranoside to the sum of the contents of emodin and physcion) and the steaming time was found to identify and differentiate Radix and its processed product. Emodin was considered as the control substance, and the correction factors of physcion, emodin-8-O--D-glucopyranoside, and physcion-8-O--D-glucopyranoside were computed. In addition, the contents of the four components were determined.

Analysis of the Effect of Co- Irradiation Sterilization Technology on the Chemical Composition of Saffron Using UPLC and UPLC/Q-TOF-MS.

To evaluate the effect of Co-γ irradiation sterilization technology on the chemical composition of saffron, we collected 10 batches of saffron samples and treated them with different irradiation doses. UPLC characteristic chromatogram showed that there was no significant effect of irradiation on 13 common peak areas. The results of cluster analysis and principal component analysis showed that there were no differences in the chemical composition in nonirradiated and irradiated samples.

[Studies on the chemical constituents of Rhodiola dumulosa (II)].

The rhizoma samples of Rhodiola dumulosa were cut into fragments and extracted by 95% EtOH. This extract was successively extracted with Et2O, EtOAc, n-BuOH. Five compounds were obtained from the EtOAc fraction.

[Studies on the chemical constituents from Rhodiola dumulosa (I)].

The rhizoma samples of Rhodiola dumulosa were cut into fragments and extracted by 95% EtOH. This extract was successively extracted with Et2O, EtOAc, n-BuOH. Six compounds were obtained from the Et2O fraction.