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https://www.readbyqxmd.com/read/28945037/-purification-and-cytotoxicity-of-glycoprotein-isolated-from-dendrobium-huoshanense
#1
Hui Deng, Nai-Dong Chen, Jun Dai, Nai-Fu Chen
Dendrobium huoshanense is a rare traditional Chinese medicinal herb, and the anti-tumor activity of its polysaccharides is a research hotspot in traditional Chinese medicine resources domain. This study aims to explore the material basis for the anti-tumor activity of polysaccharide. D. huoshanense was used as raw material in the experiment, and the different protein components were obtained through low salt solution extraction and ammonium sulfate fractional precipitation. Then glycoprotein components were determined by SDS-PAGE electrophoresis staining, and were further isolated and purified by DEAE ion column and Sephadex gel column...
January 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28945034/-preparation-and-in-vitro-release-evaluation-of-slow-releasing-intrauterine-silicone-rubber-bar-made-of-panax-notoginseng-and-rubia-cordifolia
#2
Li Xu, Guang-Shang Cao, Xin Wang, Wen-Ming Li, Wei Shi, Pan-Pan Li, Fang Zhang, Yan-Nan Li
To prepare the intrauterine slow release silicone rubber bar made of Panax notoginseng and Rubia cordifolia, and finish its preliminary evaluation of in vitro releasing properties. The open mill method was used for plasticating of silicone rubber. The process parameters of the silicone rubber and drugs mixing were optimized by orthogonal test. The parameters of silicone rubber vulcanization was optimized by single factor test. The preliminary evaluation of in vitro release performance of the silicone rubber bar was conducted with ginsenoside Rg₁, ginsenoside Rb₁, notoginsenoside R₁, purpurin and rubimaillin as the indexes...
January 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28945033/-preparation-and-evaluation-of-gastric-adhesive-floating-pellets-for-bolo-leaf-phenols
#3
Ya-Li He, Ying Li, Dan-Dan Yang, Chun-Yan Zhu
Gastric adhesive-floating pellets for Bolo leaf phenols (BLP) were prepared by extrusion-spheronization method, with chitosan as skeleton bioadhesive material, and stearyl alcohol as help-bleaching agent to evaluate its in vitro adhesivity, floatability and in vivo retention situation, and investigate its in vitro release characteristics. The in vitro adhesivity and floatability were evaluated respectively by in vitro tissue retention method and visual observation method. The retention of pellets in rats was investigated by in vivo tissue retention method and in vivo imaging of small animals...
January 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28945028/-effects-of-methyl-jasmonate-on-accumulation-of-furanocoumarins-in-changium-smyrnioides-and-its-suspension-cells
#4
Jing Cai, Yun Ma, Jian-Wei Chen, Xiang Li, Ping Zhou
Changium smyrnioides is an endangered and endemic medicinal herb in China which contains rich furanocoumarins. Bergaptol, bergapten and xanthotoxin are natural furanocoumarins in Ch. smyrnioides, among which bergaptol is mainly contained in in vitro cultures while the latter ones distribute in all organs and cultures of the plant. In this study, methyl jasmonate was used to elicit furanocoumarins in both cultivated plant and suspension cells. The accumulations of biomass and 3 furanocoumarins as well as the activity of cell, phenylalanine ammonia-lyase and antioxidase were detected...
January 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28945001/organ-on-a-chip-technology-for-reproducing-multiorgan-physiology
#5
REVIEW
Seung Hwan Lee, Jong Hwan Sung
In the drug development process, the accurate prediction of drug efficacy and toxicity is important in order to reduce the cost, labor, and effort involved. For this purpose, conventional 2D cell culture models are used in the early phase of drug development. However, the differences between the in vitro and the in vivo systems have caused the failure of drugs in the later phase of the drug-development process. Therefore, there is a need for a novel in vitro model system that can provide accurate information for evaluating the drug efficacy and toxicity through a closer recapitulation of the in vivo system...
September 25, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28944992/ginsenoside-rb1-enhances-atherosclerotic-plaque-stability-by-skewing-macrophages-to-the-m2-phenotype
#6
Xue Zhang, Ming-Hao Liu, Lei Qiao, Xin-Yu Zhang, Xiao-Ling Liu, Mei Dong, Hong-Yan Dai, Mei Ni, Xiao-Rong Luan, Jun Guan, Hui-Xia Lu
Atherosclerosis (AS) is characterized as progressive arterial plaque, which is easy to rupture under low stability. Macrophage polarization and inflammation response plays an important role in regulating plaque stability. Ginsenoside Rb1 (Rb1), one of the main active principles of Panax Ginseng, has been found powerful potential in alleviating inflammatory response. However, whether Rb1 could exert protective effects on AS plaque stability remains unclear. This study investigated the role of Rb1 on macrophage polarization and atherosclerotic plaque stability using primary peritoneal macrophages isolated from C57BL/6 mice and AS model in ApoE(-/-) mice...
September 25, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28944986/development-and-in-vitro-in-vivo-evaluation-of-a-novel-benznidazole-liquid-dosage-form-using-a-quality-by-design-approach
#7
Higo Fernando Santos Souza, Daniel Real, Darío Leonardi, Sandra Carla Rocha, Victoria Alonso, Esteban Serra, Ariel Mariano Silber, Claudio Javier Salomon
OBJECTIVES: To develop an alcohol-free solution suitable for children of benznidazole, the drug of choice for treatment of Chagas disease. METHODS: In a quality-by-design approach a systematic optimization procedure was carried out in order to estimate the values of the factors leading to the maximum drug concentration. The formulations were analyzed in terms of chemical and physical stability and drug content. The final preparation was subjected to an in-vivo palatability assay...
September 25, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28944964/wnt-%C3%AE-catenin-and-erk-pathway-activation-a-possible-mechanism-of-photobiomodulation-therapy-with-light-emitting-diodes-that-regulate-the-proliferation-of-human-outer-root-sheath-cells
#8
Jung E Kim, Young J Woo, Ki M Sohn, Kwan H Jeong, Hoon Kang
BACKGROUND: Outer root sheath cells (ORSCs) play important roles in maintaining hair follicle structure and provide support for the bulge area. The hair growth promoting effects of photobiomodulation therapy (PBMT) have been reported, but the mechanisms for this in human ORCs (hORSCs) have rarely been studied. OBJECTIVE: The aim of this study was to investigate the effect of various wavelengths of light-emitting diode (LED) irradiation on human ORSCs (hORSCs). METHODS: LED irradiation effects on hORSC proliferation and migration were examined with MTT assay, BrdU incorporation assay and migration assays...
September 25, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28944962/hpv-e6-protein-enriches-the-cd55-population-in-cervical-cancer-cells-promoting-radio-resistance-and-cancer-aggressiveness
#9
Thomas Ho-Yin Leung, Hermit Wai-Man Tang, Michelle Kwan-Yee Siu, David Wai Chan, Karen Kar-Loen Chan, Annie Nga-Yin Cheung, Hextan Yuen-Sheung Ngan
Accumulating evidence indicates that the human papilloma virus (HPV) E6 protein plays a crucial role in the development of cervical cancer. Sub-populations of cells that reside within tumors are responsible for tumor resistance to cancer therapy and recurrence. However, the identity of such cells residing in cervical cancer and their relationship with the HPV-E6 protein have not been identified. Here, we isolated sphere-forming cells, which exhibited self-renewal ability, from primary cervical tumors. Gene expression profiling revealed that CD55 was upregulated in primary cervical cancer sphere cells...
September 25, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28944959/antimicrobial-activity-of-lysozyme-isoforms-key-molecular-features
#10
Melanie Derde, Véronique Vié, Astrid Walrant, Sandrine Sagan, Valérie Lechevalier, Catherine Guérin-Dubiard, Stéphane Pezennec, Marie-Françoise Cochet, Gilles Paboeuf, Maryvonne Pasco, Florence Baron, Michel Gautier, Sophie Jan, Françoise Nau
Increasing bacterial resistance towards antibiotics has stimulated research for novel antimicrobials. Proteins acting on bacterial membranes could be a solution. Lysozyme has been proven active against E. coli by disruption of both outer and cytoplasmic membranes, with dry-heating increasing lysozyme activity. Dry-heated lysozyme (DH-L) is a mixture of isoforms (isoaspartyl, native-like and succinimide lysozymes), giving rise to two questions: what effects does each form have, and which physicochemical properties are critical as regards the antibacterial activity? These issues were investigated by fractionating DH-L, analyzing structural properties of each fraction, and testing each fraction in vivo on bacteria and in vitro on membrane models...
September 25, 2017: Biopolymers
https://www.readbyqxmd.com/read/28944929/oncogenic-mir%C3%A2-132-sustains-proliferation-and-self%C3%A2-renewal-potential-by-inhibition-of-polypyrimidine-tract%C3%A2-binding-protein-2-in-glioblastoma-cells
#11
Silong Lou, Jia Ji, Xin Cheng, Jian Ruan, Rong Li, Zhengjun Guo
Glioblastoma multiforme (GBM) is the leading type of brain tumor, exhibiting unlimited proliferation and invasion potential. The present study indicated that a high expression level of miR‑132 was detected in the neural subtype of GBM and predicted an unfavorable prognosis for patients from The Cancer Genome Atlas cohort (n=526). Cox hazard regression analysis demonstrated miR‑132 as an independent prognostic indicator for GBM patients. Further in vitro experiments indicated that miR‑132 promoted the proliferation and sphere formation of U87 cells...
September 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944928/hydrogen-inhibits-isoproterenol%C3%A2-induced-autophagy-in-cardiomyocytes-in%C3%A2-vitro-and-in%C3%A2-vivo
#12
Yaxing Zhang, Zhiyuan Long, Jingting Xu, Sihua Tan, Nan Zhang, Anfei Li, Ling Wang, Tinghuai Wang
A previous study from our group has demonstrated that hydrogen administration can attenuate cardiovascular hypertrophy in vivo by targeting reactive oxygen species‑dependent mitogen‑activated protein kinase signaling. The aim of the present study is to determine the effect of hydrogen on cardiomyocyte autophagy during β‑adrenoceptor activation in vivo and in vitro. We prepared hydrogen‑rich medium, and the concentration of hydrogen was measured by using the MB‑Pt reagent method. For the in vitro study, H9c2 cardiomyocytes were stimulated with isoproterenol (ISO; 10 µM) for 5, 15 and 30 min, and then the protein expression levels of the autophagy marker microtubule‑associated protein 1 light chain 3β II (LC3B II) were examined by western blotting...
September 25, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944921/inhibition-of-microrna%C3%A2-155-ameliorates-cardiac-fibrosis-in-the-process-of-angiotensin-ii%C3%A2-induced-cardiac-remodeling
#13
Yuzhen Wei, Xiaofei Yan, Lianhua Yan, Fen Hu, Wenhan Ma, Ya Wang, Shuai Lu, Qiutang Zeng, Zhaohui Wang
Cardiac fibrosis triggered by pressure overload represents one of the major challenges in the treatment of cardiovascular diseases. MicroRNA (miRNA/miR)‑155, a member of the small RNA family, has previously been demonstrated to be associated with cardiac inflammation. However, the effect of miR‑155 on cardiac fibrosis induced by angiotensin II (Ang II), particularly in cardiac fibroblasts, requires further investigation. The present study aimed to investigate the effect of miR‑155 in Ang II‑induced cardiac fibrosis using animal models and cardiac fibroblasts...
September 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944920/periodic-acid%C3%A2-schiff-staining-method-for-function-detection-of-liver-cells-is-affected-by-2-horse-serum-in-induction-medium
#14
Hui Hui, Wenjun Ma, Jiejie Cui, Mengjia Gong, Yi Wang, Yuanyuan Zhang, Tongchuan He, Yang Bi, Yun He
Developing a thorough understanding of experimental methods of hepatic differentiation in hepatic progenitor cells (HPCs) should expand the knowledge of hepatocyte induction in vitro and may help to develop cell transplantation therapies for the clinical usage of HPCs in liver diseases. A previous induction method effectively induced differentiation and metabolic abilities in HPCs. Periodic acid‑Schiff (PAS) staining is used to identify glycogen synthesis and hepatocyte function; however, this method failed to detect induced hepatocytes...
September 22, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944919/proprotein-convertase-subtilisin-kexin-type-6-promotes-in%C3%A2-vitro-proliferation-migration-and-inflammatory-cytokine-secretion-of-synovial-fibroblast%C3%A2-like-cells-from-rheumatoid-arthritis-via-nuclear%C3%A2-%C3%AE%C2%BAb-signal-transducer-and-activator-of-transcription-3-and
#15
Huiyu Jiang, Lin Wang, Feifei Wang, Jihong Pan
Our previous studies demonstrated that expression of proprotein convertase subtilisin/kexin type 6 (PCSK6) is greatly enhanced in rheumatoid arthritis fibroblast‑like synoviocytes (RASFs), and that PCSK6 inhibition decreases cell proliferation, migration and invasion. The present study aimed to investigate the functional role of PCSK6 in the hyperplasia of RASFs. Cultured RASFs from RA patients were stimulated with recombinant human (rh)PCSK6. Subsequent changes in proliferation, invasion, migration and the secretion of inflammatory cytokines were measured in vitro using MTT, wound healing and Transwell assays, and ELISA...
September 25, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944908/hypermethylation-of-wif1-and-its-inhibitory-role-in-the-tumor-growth-of-endometrial-adenocarcinoma
#16
Xinchao Deng, Congzhe Hou, Huali Wang, Tingting Liang, Lin Zhu
Endometrial carcinoma is the most common malignancy of the female genital tract and is the fourth most common malignancy among women worldwide. Endometrial adenocarcinoma (EAC) accounts for ~80% of endometrial carcinoma cases. Numerous critical genetic events have been determined to serve an essential role in EAC progression; however, the precise molecular mechanisms underlying EAC progression remain unclear. Pyrosequencing and methylation‑specific PCR were used to detect the methylation status of Wnt inhibitory factor 1 (WIF1)...
September 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944901/effect-of-modified-xiaochaihu-decoction%C3%A2-containing-serum-on-hepg2-2-15-cells-via-the-jak2-stat3-signaling-pathway
#17
Shaofang Chen, Zhanglin Wang, Shichuan Wan, Hai Huang, Huiqing Liang
The present study aimed to investigate the possible mechanisms underlying the effect of modified Xiaochaihu decoction (mXCHD) in the treatment of chronic hepatitis B (CHB). Patients with CHB, in addition to liver stagnation and spleen deficiency syndrome were randomly assigned to receive either Chinese (mXCHD) or western (entecavir) treatment, with 30 cases in each group. Serum was collected following treatment with mXCHD or entecavir for 7 days. A healthy group of 30 individuals was also included. HepG2...
September 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944894/glucosylceramide-synthase-regulates-the-proliferation-and-apoptosis-of-liver-cells-in%C3%A2-vitro-by-bcl%C3%A2-2-bax-pathway
#18
Jun-Feng Li, Su-Jun Zheng, Li-Li Wang, Shuang Liu, Feng Ren, Yu Chen, Li Bai, Mei Liu, Zhong-Ping Duan
Our previous study found that glucosylceramide, a type of sphingolipids, was associated with liver inflammation and fibrosis. Glucosylceramide is generated by glucosylceramide synthase (GCS), which is encoded by the UDP‑glucose ceramide glucosyltransferase (UGCG) gene. GCS is a key enzyme to regulate the physiological activity of cells. However, the role of GCS in hepatic cells remains unclear. The aim of the present study was to explore the mechanism of GCS in the proliferation and apoptosis of liver cells...
September 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944891/thioredoxin-is-implicated-in-the-anti%C3%A2-apoptotic-effects-of-grape-seed-proanthocyanidin-extract-during-hyperglycemia
#19
Xiang Ren, Heyuan Lu, Nina Wang, Chenghong Zhang, Yunpeng Ji, Shiqi Cui, Yichen Dong, Kaiyuan Yang, Mengyi Du, Fengsheng Diao, Li Kong
Diabetic retinopathy has long been recognized as a microvascular disease, however, recent research has indicated that diabetic retinopathy may also be considered a neurodegenerative disease. The elucidation of the molecular mechanisms underlying the development of diabetic retinopathy is imperative for the development of preventive and treatment strategies for patients with diabetes. In the present study, grape seed proanthocyanidin extract (GSPE) was used to upregulate the expression of thioredoxin (Trx), in order to evaluate its potential as a novel agent for the prevention and treatment of neurodegenerative diseases, including diabetic retinopathy...
September 18, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944887/microrna%C3%A2-212-inhibits-colorectal-cancer-cell-viability-and-invasion-by-directly-targeting-pik3r3
#20
Jian Zhang, Yongkang Zhang, Xiaoyun Li, Hongbo Wang, Quan Li, Xiaofeng Liao
Colorectal cancer (CRC) is the third most common cancer and the fourth most common cause of cancer‑associated mortalities worldwide. Emerging evidence has shown that abnormal microRNA (miRNA) expression contributes to CRC carcinogenesis and progression by inhibiting the expression of their target genes. Therefore, investigating the expression patterns and roles of miRNAs specifically involved in CRC formation, and progression would help expand our knowledge on CRC and provide novel therapeutic targets for CRC treatment...
September 20, 2017: Molecular Medicine Reports
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