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https://www.readbyqxmd.com/read/29243778/apatinib-resensitizes-cisplatin-resistant-non-small-cell-lung-carcinoma-a549-cell-through-reversing-multidrug-resistance-and-suppressing-erk-signaling-pathway
#1
Z-L Liu, B-J Jin, C-G Cheng, F-X Zhang, S-W Wang, Y Wang, B Wu
OBJECTIVE: To observe the reversal effect of apatinib on the resistance to cisplatin (DDP) of A549/cisplatin (A549/DDP) cells and its relevant mechanism. MATERIALS AND METHODS: A549/DDP cells were treated with the control method, apatinib alone, DDP alone and DDP combined with apatinib. The cell proliferation was detected by the 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and the cell clone formation assay. The cell apoptosis was detected by Hoechst 33258 staining and annexin V and propidium iodide (PI) double labeling...
December 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29243771/role-of-bcl-2-and-bax-in-parotid-gland-atrophy
#2
J-H Zuo, C-H Sun, H Gao, L-F Wang, Y-H Zhu
OBJECTIVE: To investigate the expression and correlation of B-cell lymphoma-2 (Bcl-2) and Bax in the parotid gland after leading duct ligation in rat. MATERIALS AND METHODS: Atrophy of the right parotid was induced by ligating the right Stensen's duct of rats. Immunohistochemical labeling was performed to study the changes in number and distribution of Bcl-2 and Bax in each step of glandular atrophy, and every group at 1, 3, 5, 7, 14, 21, 30, 60, 90, 150, 180 days after ligation...
December 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29243082/dihydroquercetin-ameliorated-acetaminophen-induced-hepatic-cytotoxicity-via-activating-jak2-stat3-pathway-and-autophagy
#3
Wenjing Zai, Wei Chen, Jingyun Luan, Jiajun Fan, Xuyao Zhang, Zimei Wu, Tao Ding, Dianwen Ju, Hongrui Liu
Acetaminophen (APAP) overdose is currently the leading cause of acute liver disease, but therapeutic treatment strategies are commonly limited. Although dihydroquercetin (DHQ) is an attractive botanical antioxidant, its protective potential for liver disease remains elusive. The present study investigated the protective effects of DHQ against APAP-induced hepatic cytotoxicity. Primary mouse hepatocytes were treated with different concentrations of DHQ followed by APAP administration. Our data showed that DHQ relieved APAP-induced growth inhibition and lactate dehydrogenase (LDH) release in a dose-dependent manner, as well as inhibited APAP-induced necrosis and extracellular signal regulated kinase-c-Jun-N-terminal kinase (ERK-JNK) stress...
December 14, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29241222/flavopiridol-enhances-abt-199-sensitivity-in-unfavourable-risk-multiple-myeloma-cells-in-vitro-and-in-vivo
#4
Liang Zhou, Yu Zhang, Deepak Sampath, Joel Leverson, Yun Dai, Maciej Kmieciak, Matthew Nguyen, Robert Z Orlowski, Steven Grant
BACKGROUND: The BCL-2-specific BH3-mimetic ABT-199 (venetoclax) has been reported to be principally active against favourable-risk multiple myeloma (MM) cells, prompting efforts to extend its activity to include more resistant, higher-risk MM subsets. METHODS: Effects of the CDK9 inhibitor flavopiridol (FP; alvocidib) on responses to ABT-199 were examined in MM cells. Cell death and protein expression were evaluated by western blot and immunofluorescence. Xenograft models were used to study combination effects in vivo...
December 14, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29239820/all-trans-retinoic-acid-induces-mitochondria-mediated-apoptosis-of-human-adipose-derived-stem-cells-and-affects-the-balance-of-the-adipogenic-differentiation
#5
Laynna de Carvalho Schweich, Edwin José Torres de Oliveira, João Renato Pesarini, Larissa Corrêa Hermeto, Melissa Camassola, Nance Beyer Nardi, Themis Maria Milan Brochado, Andréia Conceição Milan Brochado Antoniolli-Silva, Rodrigo Juliano Oliveira
The all-trans-retinoic acid (ATRA) is the most active form of vitamin A that helps to regulate the proliferation, differentiation and apoptosis of several types of cells, mainly the adipocytes, and causes weight loss through the reduction of adipogenesis and lipogenesis. In this present study we demonstrated that ATRA concentrations of 20.75, 50 and 100 μM decreased the cell viability in vitro of human adipose-derived stem cells (ADSCs), and in ADSCs during adipogenic differentiation. The cells cycle assessment showed that ATRA increased the cell frequency in Sub-G1 at 4...
November 24, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29239817/in-vitro-and-in-vivo-antitumor-effects-of-the-diterpene-enriched-extract-from-taxodium-ascendens-through-the-mitochondrial-dependent-apoptosis-pathway
#6
Jie Yang, Chan Xu, Hao Chen, Mi Huang, Xinhua Ma, Shihao Deng, Yun Huang, Yanzhang Wen, Xinzhou Yang, Ping Song
Extracts and components of Taxodium ascendens Brongn, an excellent afforestation tree, have exhibited several activities, including antibacterial activity and inhibitory activity on carbonic anhydrase II. However, the anti-hepatocellular carcinoma (anti-HCC) activity of extracts from the leaves of T. ascendens (TALE) remains unclear. In the present study, six diterpenoid compounds were isolated from a TALE extract. Here, the pro-apoptotic activities and the molecular mechanisms of TALE and the compounds 1-6 on HepG2 and Hep3B HCC cells were evaluated...
November 24, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29238892/recombinant-human-erythropoietin-protects-against-hippocampal-damage-in-developing-rats-with-seizures-by-modulating-autophagy-via-the-s6-protein-in-a-time-dependent-manner
#7
Qinrui Li, Ying Han, Junbao Du, Hongfang Jin, Jing Zhang, Manman Niu, Jiong Qin
Epilepsy is among the most common neurological disorders. Recurrent seizures result in neuronal death, cognitive deficits and intellectual disabilities in children. Currently, recombinant human erythropoietin (rhEPO) is considered to play a neuroprotective role in nervous system disorders. However, the precise mechanisms through which rhEPO modulates epilepsy remain unknown. Based on results from numerous studies, we hypothesized that rhEPO protects against hippocampal damage in developing rats with seizures probably by modulating autophagy via the ribosomal protein S6 (S6) in a time-dependent manner...
December 13, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/29238707/drug-repurposing-for-the-treatment-of-acute-myeloid-leukemia
#8
REVIEW
Vibeke Andresen, Bjørn T Gjertsen
Acute myeloid leukemia (AML) is a heterogeneous disease characterized by the accumulation of immature myeloid progenitor cells in the bone marrow, compromising of normal blood cell production and ultimately resulting in bone marrow failure. With a 20% overall survival rate at 5 years and 50% in the 18- to 65-year-old age group, new medicines are needed. It is proposed that development of repurposed drugs may be a part of the new therapy needed. AML is subdivided into recurrent molecular entities based on molecular genetics increasingly accessible for precision medicine...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/29238517/exogenous-h2s-restores-ischemic-post-conditioning-induced-cardioprotection-through-inhibiting-endoplasmic-reticulum-stress-in-the-aged-cardiomyocytes
#9
Weiming Sun, Jinxia Yang, Yuanzhou Zhang, Yuxin Xi, Xin Wen, Di Yuan, Yuehong Wang, Can Wei, Rui Wang, Lingyun Wu, Hongzhu Li, Changqing Xu
Background: A gasotransmitter hydrogen sulfide (H2S) plays an important physiological and pathological role in cardiovascular system. Ischemic post-conditioning (PC) provides cardioprotection in the young hearts but not in the aged hearts. Exogenous H2S restores PC-induced cardioprotection by inhibition of mitochondrial permeability transition pore opening and oxidative stress and increase of autophagy in the aged hearts. However, whether H2S contributes to the recovery of PC-induced cardioprotection via down-regulation of endoplasmic reticulum stress (ERS) in the aged hearts is unclear...
2017: Cell & Bioscience
https://www.readbyqxmd.com/read/29237253/combination-of-carboplatin-and-intermittent-normobaric-hyperoxia-synergistically-suppresses-benzo-a-pyrene-induced-lung-cancer
#10
Hea Yon Lee, In Kyoung Kim, Hye In Lee, Hwa Young Lee, Hye Seon Kang, Chang Dong Yeo, Hyun Hui Kang, Hwa Sik Moon, Sang Haak Lee
Background/Aims: We explored the effects of intermittent normobaric hyperoxia alone or combined with chemotherapy on the growth, general morphology, oxidative stress, and apoptosis of benzo[a]pyrene (B[a]P)-induced lung tumors in mice. Methods: Female A/J mice were given a single dose of B[a]P and randomized into four groups: control, carboplatin (50 mg/kg intraperitoneally), hyperoxia (95% fraction of inspired oxygen), and carboplatin and hyperoxia. Normobaric hyperoxia (95%) was applied for 3 hours each day from weeks 21 to 28...
December 15, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/29236891/high-expression-of-xiap-and-bcl-2-may-inhibit-programmed-cell-death-in-glioblastomas
#11
Daniela Pretti da Cunha Tirapelli, Isis Lacrose Lustosa, Sarah Bomfim Menezes, Indira Maynart Franco, Andressa Romualdo Rodrigues, Fernanda Maris Peria, Alexandre Magno da Nóbrega Marinho, Luciano Neder Serafini, Carlos Gilberto Carlotti, Luís Fernando Tirapelli
Glioblastoma (GBM) is the most malignant glioma and represents 29% of all brain tumors. Tumorigenesis is intimately connected with characteristics acquired in the physiologic pathway of cellular death. OBJECTIVE: In the present study, the expression of anti-apoptotic (XIAP and Bcl-2) and apoptotic (cytochrome C, caspase 9, APAF-1), caspase 3 and the Smac/DIABLO genes related to the apoptosis pathway were evaluated in 30 samples of glioblastoma. METHODS: The gene expression was evaluated in 30 glioblastomas (WHO grade IV) and compared to 10 white matter control samples with real-time PCR...
December 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/29236798/the-expression-of-endothelial-and-inducible-nitric-oxide-synthase-and-apoptosis-in-intestinal-ischemia-and-reperfusion-injury-under-the-action-of-ischemic-preconditioning-and-pentoxifylline
#12
Teresinha Regina Ribeiro de Oliveira, Geraldo Ferreira de Oliveira, Ricardo Santos Simões, Suellen Maurim Feitosa, Eduardo Hiroshi Tikazawa, Hugo Pequeno Monteiro, Djalma José Fagundes, Murched Omar Taha
PURPOSE: To investigate the expression of nitric oxide synthase (NOS) and apoptosis associated with ischemic preconditioning (IPC) and pentoxifylline (PTX) in intestinal ischemia (I) and reperfusion (R) injury. METHODS: Thirty male rats were assigned to 5 groups: (CG), no clamping of the superior mesenteric artery (90 minutes); (IR-SS) saline + ischemia (30 minutes) + reperfusion (60 minutes); (IR-PTX) PTX + ischemia (30 minutes) + reperfusion (60 minutes); (IPC-IR-SS) 5 minutes of ischemia + 5 minutes of reperfusion (IPC) + saline + I(30 minutes)+R(60 minutes); and (IPC-IR-PTX) IPC + PTX + I(30 minutes)+ R(60 minutes)...
November 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/29236318/proliferation-and-apoptosis-of-rheumatoid-arthritis-fibroblast-like-synoviocytes-following-signal-transducer-and-activator-of-transcription-3-rna-interference-delivery
#13
Xuehui Sun, Yun Han, Ying Liu, Yanchun Tang, Jibo Wang
OBJECTIVE: In this study, we investigated the effects of delivering small interfering RNA (siRNA) for efficient STAT3 downregulation on propagation and apoptosis of rheumatoid arthritis fibroblast-like synoviocytes (RA-FLS). METHODS: The FLSs were transfected with three different siRNAs. RNAi-1 was selected for further experiments. The expression levels of both STAT3 mRNA and its protein were detected by RT-PCR and western blot. The proliferation of FLSs was examined by MTT assay...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236151/the-effects-of-hap-and-macrophage-cells-to-the-expression-of-inflammatory-factors-and-apoptosis-in-hk-2-cells-of-vitro-co-cultured-system
#14
Junchuan Yu, Yaoliang Deng, Zhiwei Tao, Weixia Liang, Xiaofeng Guan, Jihua Wu, Xin Ning, Yunlong Liu, Quan Liu, Ziqi He
This study developed an in vitro system by co-culturing HK-2 cells with different concentration of hydroxyapatite (HAP) and/or macrophage cells to simulate the internal environment of urolithiasis as far as possible, investigating the regulatory effects of macrophage cells on HAP-induced expression of relative inflammatory factors of HK-2 cells. The control group (H group) was only comprised of HK-2 cells. Experimental groups included co-culturing HK-2 cells and macrophage cells (H + M group), co-culturing HK-2 cells and HAP (H + A group), co-culturing macrophage cells and HAP (M + A group), and co-culturing HK-2 cells and macrophage cells with HAP (H + M + A group)...
December 13, 2017: Urolithiasis
https://www.readbyqxmd.com/read/29235470/upregulation-of-b7-h4-promotes-tumor-progression-of-intrahepatic-cholangiocarcinoma
#15
Nan Xie, Jia-Bin Cai, Lu Zhang, Peng-Fei Zhang, Ying-Hao Shen, Xuan Yang, Jia-Cheng Lu, Dong-Mei Gao, Qiang Kang, Li-Xin Liu, Chi Zhang, Xiao-Yong Huang, Hao Zou, Xin-Yu Zhang, Zheng-Ji Song, Hai-Xiang Sun, Bi-Mang Fu, Ai-Wu Ke, Guo-Ming Shi
Recent reports show that B7-H4 is highly expressed in a variety of tumor cells, functions as a negative regulator of T cells and then promotes tumor progression. However, its expression and role in intrahepatic cholangiocarcinoma (ICC) remain unclear. In present study, B7-H4 expression in ICC and peritumoral tissues was determined at the level of mRNA and protein, and its bioactivity in ICC cells was studied after modification of B7-H4 expression. Then, the mechanism related to tumor progression induced by B7-H4 expression in ICC cells was explored...
December 13, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29235191/the-effect-of-cyanidin-3-o-glucoside-on-uva-induced-damage-in-human-dermal-fibroblasts
#16
Shi Wu, Yunfeng Hu, Zhen Li, Weibin Bai, Jiayi Zhao, Cuiqin Huang, Qin Li, Chongzhu Fan, Liehua Deng, Daxiang Lu
BACKGROUND/PURPOSE: Ultraviolet-A (UVA) radiation can induce photoaging and skin cancer, but means to prevent or treat UVA-induced skin damage require further study. We investigated the effects of cyanidin-3-o-glucoside (C3G), a monomer of anthocyanin, on UVA-induced damage in primary human dermal fibroblasts (HDFs), and we identify possible mechanisms underlying the protective effects of this compound. METHODS: Primary HDFs were pretreated with 80 μM C3G for 2 h and UVA irradiated at 12 J/cm2 ...
December 13, 2017: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/29234595/ibrutinib-as-a-bridge-to-transplant-in-high-risk-chronic-lymphocytic-leukemia-a-case-report-and-review-of-the-literature
#17
Arcari Annalisa, Bassi Simona, Pochintesta Lara, Trabacchi Elena, Moroni Carlo Filippo, Rossi Angela, Zanlari Luca, Vallisa Daniele
The treatment landscape of chronic lymphocytic leukemia (CLL) has been challenged by the advent of novel classes of drugs, such as B-cell receptor (BCR)-inhibitors and BCL-2 antagonists. In selected high-risk patients, the choice to start allogeneic hematopoietic stem cell transplantation (alloHCT) or continue these agents is a matter of debate. Furthermore, published data about the impact on the feasibility of alloHCT and the optimal timing of administration are limited. Here we present a case of relapsed TP53 mutated CLL treated with ibrutinib as a bridge to alloHCT, discussing risks and benefits of different treatment options in a "real life" situation...
2017: Leukemia Research Reports
https://www.readbyqxmd.com/read/29234431/protective-effects-of-total-flavones-of-elaeagnus-rhamnoides-l-a-nelson-against-vascular-endothelial-injury-in-blood-stasis-model-rats
#18
Zhicheng Wei, Fang Zuo, Wenqian Wang, Li Wang, Dong Tong, Yong Zeng, Ping Wang, Xianli Meng, Yi Zhang
The aim was to evaluate the protective effects of total flavones of Elaeagnus rhamnoides (L.) A. Nelson (TFE) against vascular endothelial injury in blood stasis model rats and explore the potential mechanisms preliminarily. The model of blood stasis rat model with vascular endothelial injury was induced by subcutaneous injection of adrenaline combined with ice-water bath. Whole blood viscosity (WBV), histological examination, and prothrombin time (PT), activated partial thromboplastin time (APTT), and fibrinogen (FIB) were measured...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29234407/jinhong-tablet-reduces-damage-of-intestinal-mucosal-barrier-in-rats-with-acute-biliary-infection-via-bcl-2-bax-mrna-and-protein-regulation
#19
Xiaoqiang Liang, Xiao Ni, YongQi Wang, Jinkun Xie, Xuelin Zhang, Honggang Gu, Jingzhe Zhang
Objective: To explore the effects and mechanism of Jinhong Tablet on intestinal mucosal barrier function and SIRS in rats with acute biliary infection. Methods: 36 SD male rats were divided into three groups: sham operation (control), acute biliary infection (ABI) model, and Jinhong Tablet (Jinhong) group. Jinhong group were force-fed with Jinhong Tablet, while the other two groups received oral saline. At days 3 and 5, morphological changes of intestinal mucosa were assessed...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29234388/the-effects-of-aqueous-extract-from-nardostachys-chinensis-batalin-on-blood-pressure-and-cardiac-hypertrophy-in-two-kidney-one-clip-hypertensive-rats
#20
Rayile Aisa, Zhaoxia Yu, Xiangyang Zhang, Dilinuer Maimaitiyiming, Lipeng Huang, Ayshamgul Hasim, Tao Jiang, Mingjun Duan
Aims: The aim of this study was to investigate the effects of the aqueous extract of Nardostachys chinensis Batalin (NCBAE) on blood pressure and cardiac hypertrophy using two-kidney one-clip (2K1C) hypertensive rats. Methods: 2K1C rat models were set up by clipping the left renal artery. Sham-operated rats underwent the same surgical procedure except for renal arterial clipping. 2K1C hypertensive rats were orally given NCBAE at doses of 210, 420, and 630 mg·kg-1·d-1 for 6 weeks...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
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