OBJECTIVES: To investigate the mechanism through which salidroside inhibits proliferation of gastric cancer (GC) cells focusing on glucose metabolic reprogramming pathways. METHODS: High-throughput sequencing combined with bioinformatics analysis was employed to identify the potential targets of salidroside in human GC MGC-803 cells. Liposome-mediated transfection experiments were carried out to validate the functional and mechanistic roles of these targets. CCK-8 and colony formation assays were used to assess the effects of salidroside on GC cell viability and clonogenic ability. qRT-PCR, Western blotting, and biochemical assay kits were used to analyze the regulatory effects of salidroside on the miR-1343-3p-OGDHL/PDHB enzyme complex-pyruvate metabolic pathway in GC cells. RESULTS: Bioinformatics analysis suggested that the tumor-suppressive factor miR-1343-3p negatively regulated the key glycolytic enzyme gene oxoglutarate dehydrogenase-like (OGDHL) in GC cells, and OGDHL and pyruvate dehydrogenase E1 subunit beta (PDHB) were both significantly upregulated in GC tissues, which was close by correlated with reduced survival rates of GC patients. In MGC-803 cells, salidroside treatment significantly enhanced the expression level of miR-1343-3p and downregulated OGDHL expression, resulting in disruption of the stability of PDHB, reduced pyruvate oxidative decarboxylation, and consequently decreased production of acetyl-CoA and ATP. CONCLUSIONS Salidroside inhibits GC cell proliferation possibly by regulating the miR-1343-3p-OGDHL/PDHB enzyme complex-pyruvate metabolic pathway, which provides new insights into its anti-tumor mechanisms and suggests new strategies for targeted therapy for GC.
Humans ; Stomach Neoplasms/pathology* ; MicroRNAs/genetics* ; Cell Proliferation/drug effects* ; Glucosides/pharmacology* ; Phenols/pharmacology* ; Cell Line, Tumor ; Glucose/metabolism* ; Pyruvate Dehydrogenase (Lipoamide)/metabolism*

Three 2,3-diketoquinoxaline alkaloids were isolated from Heterosmilax yunnanensis Gagnep. Their structures were determined through 1D and 2D NMR, HR-ESI-MS, UV, and IR as 1-[5′-(3″-hydroxy-3″-methyl) glutaryl] ribityl-2,3-diketo-1,2,3,4-tetrahydro-6,7-dimethylquinoxaline (1), 1-[2′-(3″-hydroxy-3″-methyl) glutaryl]ribityl-2,3-diketo-1,2,3,4-tetrahydro-6,7-dimethylquinoxaline (2), and 1-ribityl-2,3-diketo-1,2,3,4-tetrahydro-6,7-dimethylquinoxaline (3). Compounds 1 and 2 are novel compounds, and 3 was isolated from H. yunnanensis for the first time. The hepatoprotective activity of these three compounds was evaluated, with compound 3 showing promising hepatoprotective activity.

Insulin-like peptides(ILPs)play a crucial role in the biological processes of nematode metabolism,signal transduction,and developmental processes,representing potential therapeutic targets for nematode infections in animals.In order to explore the specific role of ILPs in nematode development and infection,genome-wide identification,sequence and evolution analysis of the ILPs coding genes were conducted on Haemonchus contortus(H.contortus);transcriptional levels of these ILPs coding genes among developmental stages were determined by a real-time quantitative PCR method;recombinant ILPs were produced in prokaryotic system for polyclonal antibody prep-aration and Western blot analysis;indirect immunofluorescence localization experiment was used to reveal the tissue distribution of ILPs at different developmental stages.It was showed that the number of ILPs coding genes in H.contortus were significantly reduced compared with that of Caenorhabditis elegans,namely three members of ILPs coding genes exhibiting antagonistic fea-tures;the highest transcriptional levels of ILPs coding genes was detected in the infective third stage larvae of H.contortus;ILPs were found dominant in the intestine and hypodermis of the in-fective larvae of this parasitic nematode.In this study,three genes encoding antagonistic ILPs were identified in H.contortus,they might play a role in regulating the development and infection processes.The finding lay a foundation for the study of nematode hypobiosis(larval diapause)in animals and the screening of potential intervention targets.

Objective: To investigate the neuroprotective effect of mesenchymal stem cells (MSC) combined with low⁃intensity transcranial ultrasound (LITUS) treatment on traumatic brain injury (TBI) . Methods: Seventy⁃two SD rats were randomly divided into four groups , namely , control group , TBI group , MSC injection group , and combined treatment group , with 18 rats in each group. TBI model was established by applying a pneumatic controlled cortical impingement instrument. Within 24 h after surgery , MSC was injected into the injury site by microinjector and microinjector pump using in situ injection. After injection , the injury site was treated with LITUS for 28 consecutive days using an ultrasound stimulator. The modified neurological functioning score ( mNSS) was performed on rats in each group at 1 , 3 , 7 , 14 , 21 and 28 days postoperatively , and then the brains were extracted to detect pathological changes at the injury site and the mRNA and protein expression of brain⁃derived neurotrophic factor (BDNF) , growth associated protein⁃43 ( GAP⁃43) , postsynaptic density protein⁃95 ( PSD⁃95 ) and glial fibrillary acidic protein(GFAP) by HE staining , immunohistochemistry , Western blot and RT⁃PCR. Results: Compared with the control group , the mNSS score increased in the TBI group (P < 0. 05) , the expression of GAP⁃43 and PSD⁃95 decreased , and the expression of GFAP increased ( P < 0. 05 ) ; Compared with the TBI group , the mNSS score of MSC group was lower (P < 0. 05) , the expression of BDNF , GAP⁃43 , PSD⁃95 increased , and the expression of GFAP decreased (P < 0. 05) ; mNSS scores were lower in the combined treatment group than those in the MSC group (P < 0. 05) , the expression of BDNF , GAP⁃43 , PSD⁃95 increased , and the expression of GFAP decreased (P < 0. 05) . Conclusion The mechanism by which MSC combined with LITUS exerts neuroprotective effects in TBI may be related to the promotion of BDNF , GAP⁃43 , and PSD⁃95 expression and reduction of GFAP expression.

AIM: To study the inhibitory effect of Xihuang Pill on H

Objective:To evaluate diagnostic value of contrast-enhanced harmonic endoscopic ultrasonography (CEH-EUS) for pancreatic cystic lesions.Methods:Endoscopic and clinical follow-up data of patients with pancreatic cystic lesions diagnosed by EUS in Department of Gastroenterology of the First Affiliated Hospital of Naval Medical University with CEH-EUS video from March 2013 to April 2020 was retrospectively analyzed.Results:A total of 36 patients were included. There were 16 cases of serous cystadenomas (SCA), 10 cases of mucinous cystic neoplasm (MCN), 5 cases of intraductal papillary mucinous neoplasms (IPMN, 3 with complex type, 2 with main pancreatic duct type) and 5 cases of pancreatic pseudocyst (PPC). 87.5%(14/16) of SCA and 86.7%(13/15) of MCN+ IPMN had hyperenhanced cystic wall with obvious peak and similar washout as surrounding tissue, whereas only 20%(1/5) PPC had hyperenhanced cystic wall. The hyperenhancing effect of PPC was significantly lower than that of SCA and MCN+ IPMN ( P=0.0035 and P=0.0048, respectively ). Mural nodules were detected in 17 cases of pancreatic cystic lesions by EUS, of which 3 cases had hyperenhanced mural modules and 14 cases had hypoenhanced mural nodules by CEH-EUS. Patients showing hyperenhanced mural modules were all finally diagnosed as pancreatic malignancy (1 IPMN, 2 MCN), and the accuracy was 100%. Conclusions:CEH-EUS can have a obvious advantage of differentiating pseudocyst and other pancreatic cystic lesions, while not very useful for differentiating SCA and MCN. Pancreatic cystic lesions showing hyperenhanced mural nodules under CEH-EUS may imply malignancy potential.

Objective:To explore whether Internet continuous nursing can reduce anxiety and depression, chemotherapy-induced peripheral neuropathy, improve treatment compliance and reduce adverse reactions in patients with colorectal cancer undergoing oxaliplatin chemotherapy.Methods:A total of 69 patients with colorectal cancer in the Department of oncology, General Hospital of Northern War Zone from July 2019 to June 2020 were selected and divided into the observation group (34 cases) and the control group (35 cases) by random digits table method. The control group was given conventional nursing mode, and the observation group was given Internet continuity nursing mode. All patients were followed up to 3 months after the end of chemotherapy. The basic information, treatment anxiety and depression, chemotherapy-induced peripheral neuropathy, compliance, incidence of adverse reactions and patient satisfaction of the two groups were compared.Results:There was no significant difference in the anxiety and depression before and after chemotherapy, chemotherapy-induced peripheral neuropathy after chemotherapy( P>0.05). After 3 months of chemotherapy, the anxiety and depression and chemotherapy-induced peripheral neuropathy were (20. 97± 3.46),(14.27 ± 1.14) points in the observation group, and (24. 99 ± 1.11),(18.16 ± 2.55) points in the control group, the differences were statistically significant ( t values were 3.80, 5.09, P<0.05). In the control group, there were 19 cases of regular review, 20 cases of persistent chemotherapy, 21 cases of disease awareness, 21 cases of scientific diet, 19 cases of psychological compliance and 19 cases of self-protection. In the observation group, there were 28 cases of regular review, 29 cases of persistent chemotherapy, 30 cases of disease awareness, 28 cases of scientific diet, 30 cases of psychological compliance and 28 cases of self-protection. The treatment compliance in the observation group were significantly higher than those in the control group (χ 2 values were 4.186-9.657, P<0.05). In the control group, there were 7 cases of peripheral neurotoxicity, 2 cases of acute laryngopharyngeal paresthesia, 18 cases of gastrointestinal reaction and 4 cases of hematotoxicity. Fourteen cases of gastrointestinal reaction in the observation group. The incidence of adverse reactions in the observation group was lower than that in the control group, and the difference was statistically significant ( χ2 value was 8.26, P<0.05). In the control group, 6 were very satisfied, 27 were satisfied and 2 were good.The observation group was very satisfied and satisfied with 16 people and 18 people. The satisfaction in the observation group was higher than that in the control group, and the difference was statistically significant ( Z value was 1.853, P<0.05). Conclusions:Internet continuous nursing can effectively reduce the anxiety and depression of patients and chemotherapy-induced peripheral neuropathy, improve the treatment compliance of patients, reduce the adverse reactions after medication, and improve the quality of life of patients, which is worthy of application and promotion.

The paper aims to study and compare the effects of Scutellaria baicalensis leaves (SLE) and Scutellaria baicalensis tea (STE) water extracts on the lifespan of Drosophila melanogaster, and explore their anti-aging mechanism through metabolomics. Lifespan, food intake and fertility were measured after administering different doses of SLE and STE to a Drosophila natural aging model, and the metabolic profile of Drosophila was analyzed by metabolomics and multivariate statistical methods. The results showed that SLE and STE (1, 3 g·L^-1) could significantly prolong the average lifespan, median life and maximum lifespan of male Drosophila, improve the fertility of Drosophila, and had no effect on the food intake. Through metabolomics technology, 14 differential metabolites related to aging were found, involving a total of five metabolic pathways. All differential metabolites were reversed after STE intervention, while 13 differential metabolites were reversed after SLE intervention. The results suggest that SLE and STE can delay aging of Drosophila, and the anti-aging mechanism is related to energy metabolism.

Objective To investigate the relations and evaluation value of serum thymidine kinase 1 (sTK1) in the treatment of patients withacute exacerbation of chronic obstructive pulmonarydisease (AECOPD). Methods The retrospective treating studies were performed on 104 patients with AECOPD , sTK1 level was de-tected by chemiluminescence dot-blot assay before and after treatment , and the correlation between the expression of sTK1 and CRP after treatment in the two groups was analyzed. Results The levels of sTK1 and CRP in the ef-fective group significantly lowered after treatment (P < 0.05). The expression of sTK1 in the effective group and in the ineffective group after treatment was significantlycorrelated with CRP (P < 0.05). Conclusion sTK1 can be used as a valuable indicator to evaluate the severity of AECOPD and to estimate the efficacy of AECOPD thera-py.

To compare the differences between Hengshanhuangqi (HH) and Chuanhuangqi (CH) at molecular level, 1H NMR based plant metabolomics approach was used to reveal the chemical difference between HH and CH. Then, the contents of astragaloside IV and calycosin-7-O-beta-D-glucoside, the marker compounds specified in China Pharmacopoeia, were determined. In addition, the ITS2 fragments of HH and CH were sequenced. Twenty-three metabolites were identified in the 1H NMR spectrum, and the principal component analysis showed CH and HH could be separated clearly. HH contained more aspartic acid, GABA, citric acid, astragaloside IV and calycosin-7-O-beta-D-glucoside, while CH contained more threonine, alanine, acetic acid, choline, arginine, fructose and sucrose. And the astragaloside IV is almost undetectable in CH. In addition, the ITS2 fragment sequences of HH and CH were different at eight bases. Thus, the HH and CH showed significant differences chemically and genetically.
Astragalus membranaceus ; chemistry ; classification ; genetics ; Base Sequence ; DNA, Plant ; genetics ; DNA, Ribosomal Spacer ; genetics ; Glucosides ; analysis ; Isoflavones ; analysis ; Metabolomics ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; classification ; genetics ; Principal Component Analysis ; Saponins ; analysis ; Sequence Analysis, DNA ; Species Specificity ; Triterpenes ; analysis