() leaves are rich in cannabinoids and flavonoids, which play important antioxidant roles. Since the environmental factors may influence the accumulation of antioxidants in herbal medicines, which affects their activity, this study aimed to investigate the correlation between the chemical composition of leaves and their geographical origin and antioxidant activity. Firstly, a high-resolution mass spectrometry method assisted by semi-quantitative feature-based molecular networking (SQFBMN) was established for the characterization and quantitative analysis of leaves from various regions.
View Article and Find Full Text PDFThis paper reports the isolation of two undescribed phenolic glycosides ( and ), together with seven known compounds (-) from the branches of . The structures of undescribed compounds were elucidated by comprehensive spectroscopic methods (1D NMR, 2D NMR, and HRESIMS). The sugar units of compounds and were identified by acid hydrolysis and HPLC analysis of the chiral derivatives of the monosaccharides.
View Article and Find Full Text PDFBackground: Cardiovascular diseases (CVDs) are the leading cause of death around the world. Most CVDs-related death can be prevented by the optimal management of risk factors such as unhealthy diet and physical inactivity. Clinical practice guidelines (CPGs) for CVDs, provide some evidence-based recommendations which help healthcare professionals to achieve the best care for patients with CVDs.
View Article and Find Full Text PDFThe phytochemical investigation on the methanol extract of fruits resulted in the isolation and identification of two new lignan constituents ( and ) and seven known phenolic glycosides (-). The structures of new isolates, including their absolute configurations were elucidated by extensive spectroscopic analyses (H and C NMR, HSQC, HMBC, HRESIMS, and ECD) and chemical methods. In the enzyme assays, compounds , , , and showed potential ‑amylase and -glucosidase inhibitory activities.
View Article and Find Full Text PDFObjective: To determine the influencing factors of medical device related pressure injury (MDRPU) in medical staff by meta-analysis.
Methods: A comprehensive literature search was conducted by PubMed, Embase, Cochrane Library, Web of Science, CNKI, VIP, CBM, and WanFang Data (from inception to July 27, 2022). Two researchers independently performed literature screening, quality evaluation and data extraction, and meta-analysis was conducted with RevMan 5.
Rolfe is widely used in China as folk medicine. The bioactivity evaluation indicated that the -BuOH fraction of leaves (VLLB) could significantly inhibit ‑amylase and -glucosidase. In order to clarify its active constituents, the phytochemical analysis on VLLB was first performed using HPLC-QTOF-MS/MS, and three new phenolic compounds, viburosides A-C (-), along with seven known analogues (-) were isolated through preparative HPLC.
View Article and Find Full Text PDFPurpose: To evaluate the quality of published clinical practice guidelines (CPGs) regarding the nutritional risk screening and assessment of cancer patients and to identify high-quality CPGs for clinical healthcare professionals.
Methods: Guidelines for the nutritional risk screening and assessment of cancer patients were comprehensively searched in eight electronic databases, including The Lancet, PubMed, Cochrane Library, Excerpta Medica dataBASE (EMBASE), Web of Science, China National Knowledge Infrastructure (CNKI), China Biology Medicine disc (CBMdisc), and Wan Fang Data, through August 2020. Six relevant guideline databases, including the National Comprehensive Cancer Network (NCCN), the National Guideline Clearinghouse (NGC), the Guideline International Network (GIN), the New Zealand Guidelines Group (NZGG), the China Guideline Clearinghouse (CGC), and Medlive, and relevant nutrition society websites, were also searched through August 2020.
Zhongguo Zhong Xi Yi Jie He Za Zhi
October 2016
Zhongguo Zhong Xi Yi Jie He Za Zhi
March 2016
Objective: To investigate the role of nicotinamide-adenine dinucleotide phosphate (NADPH) oxidasedependent formation of reactive oxygen species (ROS) in the transforming growth factor β1 (TGF-β1)-induced epithelial-mesenchymal transition (EMT) in rat peritoneal mesothelial cells (RPMCs), and the effect of Astragalus injection (AGI) intervention.
Methods: Primary RPMCs were cultured to the second generation in vitro. After synchronization for 24 h, the cells were randomly assigned to the following groups: control (Group A), AGI (2 g/mL; Group B), TGF-β1 (10 ng/mL; Group C), TGF-β1 (10 ng/mL) + AGI (2 g/mL; Group D; pretreated for 1 h with AGI before TGF-β1 stimulation).
Objective: To observe the effect of acupoint-embedement of medicated-thread and acupoint-injection of Chuanxiongzine on the expression of urokinase-type plasminogen activator (uPA) and plasminogen activator inhibitor-1 (PAI-1) in the cerebral cortex in rats with cerebral ischemia-reperfusion injury (CI/RI), so as to explore its underlying mechanism in protecting the ischemic cerebral tissue.
Methods: Seventy-eight SD rats were randomly divided into normal control group (n=6), sham operation (sham) group (n=18), model group (n=18),acupoint injection (Al) group (n=18), and acupoint-thread-embedment (ATE) group (n=18). Rats of the latter 4 groups were randomized into 1 d, 3 d and 5 d subgroups, with 6 rats in each.
Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi
October 2010
Objective: To investigate the subcellular localization of ATP synthase b subunit from Clonorchis sinensis under different conditions of Hela cell cycling, and the effect of this protein on the expression of its encoding-gene and homologous host genes.
Methods: pEGFP-N1-CsATP-synt_B and the vector pEGFP-N1 were transfected into Hela cells, respectively. Transfected cells were synchronized in G0/G1 by serum starvation, G1/S, S cells by double thymidine block, and G2/M cells by thymidine-Nocodozale block.
Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi
April 2009
Objective: To illustrate the distribution of ATP synthase b subunit in the tissue of Clonorchis sinensis adult and its subcellular mimical localization in HeLa cells.
Methods: With the antiserum against recombinant CsATP-synt_B protein raised from SD rats as primary antibody, paraffin sections of the adult of C. sinensis were processed by the method of fluorescent immunohistochemistry to observe the distribution of CsATP-synt_B protein in adult worm.
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi
July 2008
Aim: To clarify the effects of the recombinant protein of Lysophospholipase from Clonorchis sinensis (CsLysoPLA) on the hepatic stellate cells (HSC) and oval cells of rat.
Methods: Binding of the recombinant CslysoPLA protein to the membrane of HSC and oval cells was identified by immunofluorescent staining. The HSC and oval cells were cultured and treated with the recombinant protein at different doses, and proliferation was quantified by MTT method.
Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi
October 2007
Objective: To clone and express the Clonorchis sinensis F0-ATP synthase b chain (CsF0-ATP-synt_B) gene and analyze immunogenicity of the recombinant protein.
Methods: The coding region F0-ATP synthase b chain gene with the mitochondrial targeting sequence (MTS) removed was amplified with PCR using the cloned plasmid as template, and the product was cloned into the prokaryotic expression vector pET-28a(+), transformed into E. coli BL21 (DE3) and induced with IPTG.
Zhejiang Da Xue Xue Bao Yi Xue Ban
March 2005
Objective: To construct a cDNA library from human liver tissue of cirrhosis.
Methods: The total RNA from human liver tissue of cirrhosis was extracted using Trizol method, and the mRNA was purified using mRNA purification kit. SMART technique and CDSIII/3' primer were used for first-strand cDNA synthesis.
Objective: To construct a cDNA library from human liver tissue with chronic hepatitis B and check its quality for investigating the expression level of liver tissue infected by hepatitis B virus. This will then be used to find the relevant genes and interesting proteins associated with the development of hepatitis B.
Methods: The total RNA from liver tissue with chronic hepatitis B was extracted and the mRNA was purified using TRIZOL method.