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https://www.readbyqxmd.com/read/28441355/-188-re-liposome-can-induce-mitochondrial-autophagy-and-reverse-drug-resistance-for-ovarian-cancer-from-bench-evidence-to-preliminary-clinical-proof-of-concept
#1
Chia-Ming Chang, Keng-Li Lan, Wen-Sheng Huang, Yi-Jang Lee, Te-Wei Lee, Chih-Hsien Chang, Chi-Mu Chuang
Despite standard treatment, about 70% of ovarian cancer will recur. Cancer stem cells (CSCs) have been implicated in the drug-resistance mechanism. Several drug resistance mechanisms have been proposed, and among these, autophagy plays a crucial role for the maintenance and tumorigenicity of CSCs. Compared to their differentiated counterparts, CSCs have been demonstrated to display a significantly higher level of autophagy flux. Moreover, mitophagy, a specific type of autophagy that selectively degrades excessive or damaged mitochondria, is shown to contribute to cancer progression and recurrence in several types of tumors...
April 25, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28440951/concluding-the-trilogy-the-interaction-of-2-2-dihydroxy-benzophenones-and-their-carbonyl-n-analogues-with-human-glutathione-transferase-m1-1-face-to-face-with-the-p1-1-and-a1-1-isoenzymes-involved-in-mdr
#2
Nikolaos D Georgakis, Dionisis A Karagiannopoulos, Trias N Thireou, Elias E Eliopoulos, Nikolaos E Labrou, Petros G Tsoungas, Michael N Koutsilieris, Yannis D Clonis
The conjugation of intracellular glutathione (GSH) with several electrophilic, predominantly hydrophobic, endogenous and xenobiotic compounds, such as chemotherapeutics and carcinogenics, agrochemicals and other drugs, is catalyzed by the multigene enzyme family of glutathione transferases (GSTs). The mammalian family of GSTs comprises three groups: cytosolic, mitochondrial and microsomal. Human cytosolic GSTs constitute the largest family, which is classified in seven distinct classes named Alpha (Α), Mu (M), Pi (P), Theta (T), Sigma (S), Zeta (Z) and Omega (O)...
April 25, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28440431/gdf-15-gene-expression-alterations-in-human-lymphoblastoid-cells-and-peripheral-blood-lymphocytes-following-exposure-to-ionizing-radiation
#3
Shuang Li, Qing-Zhao Zhang, De-Qin Zhang, Jiang-Bin Feng, Qun Luo, Xue Lu, Xin-Ru Wang, Kun-Peng Li, De-Qing Chen, Xiao-Feng Mu, Ling Gao, Qing-Jie Liu
The identification of rapid, sensitive and high‑throughput biomarkers is imperative in order to identify individuals harmed by radiation accidents, and accurately evaluate the absorbed doses of radiation. DNA microarrays have previously been used to evaluate the alterations in growth/differentiation factor 15 (GDF15) gene expression in AHH‑1 human lymphoblastoid cells, following exposure to γ‑rays. The present study aimed to characterize the relationship between the dose of ionizing radiation and the produced effects in GDF‑15 gene expression in AHH‑1 cells and human peripheral blood lymphocytes (HPBLs)...
April 12, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28440396/downregulation-of-mir-10b-promotes-osteoblast-differentiation-through-targeting-bcl6
#4
Jizhou Yang, Shaojie Wang, Fengxian Wang, Xiaohong Mu, Yi Qu, Ziyi Zhao, Xing Yu
MicroRNAs (miRNAs or miRs) have been shown to play a critical role in osteoblast differentiation. miR-10b has been found to be downregulated during osteoblast differentiation; however, its precise effect on osteoblast differentiation remains unknown. In this study, we aimed to investigate the potential role of miR-10b and the potential underlying mechanism in regulating osteoblast differentiation. We found that miR-10b was downregulated during osteoblast differentiation. Overexpression of miR-10b inhibited osteoblast differentiation, whereas the suppression of miR-10b promoted osteoblast differentiation...
April 20, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28440002/differential-effect-of-incobotulinumtoxin-a-on-pain-neurogenic-flare-and-hyperalgesia-in-human-surrogate-models-of-neurogenic-pain
#5
S A Diener, M Breimhorst, Th Vogt, H H Krämer, P D Drummond, C Geber, F Birklein
BACKGROUND: The effectiveness of Botulinum-neurotoxin A (BoNT/A) to treat pain in human pain models is very divergent. This study was conducted to clarify if the pain models or the route of BoNT/A application might be responsible for these divergent findings. METHODS: Sixteen healthy subjects (8 males, mean age 27 ± 5 years) were included in a first set of experiments consisting of three visits: (1) Visit: Quantitative sensory testing (QST) was performed before and after intradermal capsaicin injection (CAPS, 15 μg) on one thigh and electrical current stimulation (ES, 1 Hz) on the contralateral thigh...
April 25, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28438760/use-of-the-hyperinsulinemic-euglycemic-clamp-to-assess-insulin-sensitivity-in-guinea-pigs-dose-response-partitioned-glucose-metabolism-and-species-comparisons
#6
Dane M Horton, David A Saint, Julie A Owens, Kathryn L Gatford, Karen L Kind
The guinea pig is an alternate small animal model for the study of metabolism, including insulin sensitivity. However, only one study to date has reported the use of the hyperinsulinemic-euglycemic clamp (HEC) in anaesthetized animals in this species, and the dose-response has not been reported. We therefore characterized the dose-response curve for whole-body glucose uptake using recombinant human insulin in the adult guinea pig. Inter-species comparisons with published data showed species differences in maximal whole body responses (guinea pig ≈ human < rat < mouse), and the insulin concentrations at which half-maximal insulin responses occurred (guinea pig > human ≈ rat > mouse)...
April 24, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28438163/enhanced-status-of-inflammation-and-endothelial-activation-in-subjects-with-familial-hypercholesterolaemia-and-their-related-unaffected-family-members-a-case-control-study
#7
Thuhairah Rahman, Nur Suhana Hamzan, Atiqah Mokhsin, Radzi Rahmat, Zubin Othman Ibrahim, Rafezah Razali, Malathi Thevarajah, Hapizah Nawawi
BACKGROUND: Familial hypercholesterolaemia (FH) leads to premature coronary artery diseases (CAD) which pathophysiologically can be measured by inflammation, endothelial activation and oxidative stress status. However, the status of these biomarkers among related unaffected relatives of FH cases and whether FH is an independent predictor of these biomarkers have not been well established. Thus, this study aims to (1) compare the biomarkers of inflammation, endothelial activation and oxidative stress between patients with FH, their related unaffected relatives (RUC) and normolipaemic subjects (NC) (2)determine whether FH is an independent predictor of these biomarkers...
April 24, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28437775/effect-of-nitrification-inhibitors-on-mitigating-n2o-and-no-emissions-from-an-agricultural-field-under-drip-fertigation-in-the-north-china-plain
#8
Di Tian, Yuanyuan Zhang, Yizhen Zhou, Yujing Mu, Junfeng Liu, Chenglong Zhang, Pengfei Liu
N2O and NO emissions from a winter wheat-summer maize rotation field with five different treatments in the North China Plain (NCP) were comparably investigated from 8 October 2014 to 11 October 2015. Compared with the treatments with only flood or drip irrigation, evident emission peaks of N2O and NO from the fertilization treatments with flood irrigation (A-Flood) and with drip fertigation (A-Drip) were observed after each fertilization event, whereas their emissions from the fertilization treatments with nitrification inhibitors under drip fertigation (A+DCD-Drip and A+Nitrapyrin-Drip) were greatly suppressed...
April 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28437605/aqueously-released-graphene-oxide-embedded-in-epoxy-resin-exhibits-different-characteristics-and-phytotoxicity-of-chlorella-vulgaris-from-the-pristine-form
#9
Xiangang Hu, Weilu Kang, Li Mu
The environmental release of nanoparticles is attracting increasing attention. Graphene oxide (GO) embedded in epoxy resin (ER) is a popular composite that has been used in various fields, but the environmental release of GO-ER composites and the effects on organisms in the environment remain unknown. The present work found that GO-ER composites in water for 2-7 days resulted in the release of 0.3-2.1% GO-ER at nanoscale (2-3 nm thickness and approximately 70-130 nm lateral length). Interestingly, pristine GO quenched 30-45% hydroxyl and 12% nitroxide free radicals, whereas this capacity was not observed for the released particles from GO-ER...
April 24, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28436823/flocculation-and-antimicrobial-properties-of-a-cationized-starch
#10
Zhouzhou Liu, Mu Huang, Aimin Li, Hu Yang
In this study, a series of cationized starch-based flocculants (starch-3-chloro-2-hydroxypropyl triethyl ammonium chloride, St-CTA) containing various quaternary ammonium salt groups on the starch backbone were prepared using a simple etherification reaction. All of the prepared starch-based flocculants show effective performance for the flocculation of kaolin suspension, two bacterial (Escherichia coli and Staphylococcus aureus) suspensions, and two contaminant mixtures (kaolin and each bacterium) under most pH conditions...
April 18, 2017: Water Research
https://www.readbyqxmd.com/read/28435976/-role-of-igg-plasma-cells-in-the-change-of-protein-c-system-in-ulcerative-colitis
#11
Xu-Hong Lin, Jun-Ling Guo, Yu-Qing Wen, Yu-Xia Li, Dan-Dan Wei, Rui-Lin Yang, Xiao-Yun Mu, Hui-Chao Wang
The present study is designed to explore the role of plasma cells in the change of protein C system (PCS) in ulcerative colitis (UC). Dextran sulfate sodium (DSS, 4% in concentration) was used to induce mouse UC model. The plasma cells and the type of immune complex in colon were observed by immunofluorescence. The amount and type of plasma cells separated from colonic mucosal lamina propria were detected by flow cytometry using anti-CD54(+)CD38(+) and IgA/M/G antibodies, respectively. After stimulation of macrophages by IgG type immune complex, TNF-α and IL-6 levels were evaluated by ELISA...
April 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28435450/exome-sequencing-of-oral-squamous-cell-carcinoma-reveals-molecular-subgroups-and-novel-therapeutic-opportunities
#12
Shih-Chi Su, Chiao-Wen Lin, Yu-Fan Liu, Wen-Lang Fan, Mu-Kuan Chen, Chun-Ping Yu, Wei-En Yang, Chun-Wen Su, Chun-Yi Chuang, Wen-Hsiung Li, Wen-Hung Chung, Shun-Fa Yang
Oral squamous cell carcinoma (OSCC), an epithelial malignancy affecting a variety of subsites in the oral cavity, is prevalent in Asia. The survival rate of OSCC patients has not improved over the past decades due to its heterogeneous etiology, genetic aberrations, and treatment outcomes. Improvement in therapeutic strategies and tailored treatment options is an unmet need. To unveil the mutational spectrum, whole-exome sequencing of 120 OSCC from male individuals in Taiwan was conducted. Analyzing the contributions of the five mutational signatures extracted from the dataset of somatic variations identified four groups of tumors that were significantly associated with demographic and clinical features...
2017: Theranostics
https://www.readbyqxmd.com/read/28435266/egfr-targeted-delivery-of-dox-loaded-fe3o4-polydopamine-multifunctional-nanocomposites-for-mri-and-antitumor-chemo-photothermal-therapy
#13
Xupeng Mu, Fuqiang Zhang, Chenfei Kong, Hongmei Zhang, Wenjing Zhang, Rui Ge, Yi Liu, Jinlan Jiang
Multifunctional nanocomposites that have multiple therapeutic functions together with real-time imaging capabilities have attracted intensive concerns in the diagnosis and treatment of cancer. This study developed epidermal growth factor receptor (EGFR) antibody-directed polydopamine-coated Fe3O4 nanoparticles (Fe3O4@PDA NPs) for magnetic resonance imaging and antitumor chemo-photothermal therapy. The synthesized Fe3O4@PDA-PEG-EGFR-DOX NPs revealed high storage capacity for doxorubicin (DOX) and high photothermal conversion efficiency...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28434314/caloric-restriction-prevents-the-progression-of-murine-aapoaii-amyloidosis
#14
Jinko Sawashita, Lin Li, Yingye Liu, Xin Ding, Mu Yang, Zhe Xu, Keiichi Higuchi
No abstract text is available yet for this article.
March 2017: Amyloid: the International Journal of Experimental and Clinical Investigation
https://www.readbyqxmd.com/read/28434311/apolipoprotein-a-ii-accelerates-reactive-aa-amyloidosis
#15
Mu Yang, Yingye Liu, Lin Li, Hiroki Miyahara, Xin Ding, Jian Dai, Jinko Sawashita, Masayuki Mori, Keiichi Higuchi
No abstract text is available yet for this article.
March 2017: Amyloid: the International Journal of Experimental and Clinical Investigation
https://www.readbyqxmd.com/read/28433739/dual-functional-drug-liposomes-in-treatment-of-resistant-cancers
#16
REVIEW
Li-Min Mu, Rui-Jun Ju, Rui Liu, Ying-Zi Bu, Jing-Ying Zhang, Xue-Qi Li, Fan Zeng, Wan-Liang Lu
Efficacy of regular chemotherapy is significantly hampered by multidrug resistance (MDR) and severe systemic toxicity. The reduced toxicity has been evidenced after administration of drug liposomes, consisting of the first generation of regular drug liposomes, the second generation of long-circulation drug liposomes, and the third generation of targeting drug liposomes. However, MDR of cancers remains as an unsolved issue. The objectives of this article are to review the dual-functional drug liposomes, which demonstrate the potential in overcoming MDR...
April 19, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28432932/surveillance-of-vittaforma-corneae-in-hot-springs-by-a-small-volume-procedure
#17
Jung-Sheng Chen, Tsui-Kang Hsu, Bing-Mu Hsu, Tung-Yi Huang, Yu-Li Huang, Men-Fang Shaio, Dar-Der Ji
Vittaforma corneae is an obligate intracellular fungus and can cause human ocular microsporidiosis. Although accumulating reports of V. corneae causing keratoconjunctivitis in both healthy and immunocompromised persons have been published, little is known about the organism's occurrence in aquatic environments. Limitations in detection sensitivity have meant a large sampling volume is required to detect the pathogen up to now, which is problematic. A recent study in Taiwan has shown that some individuals suffering from microsporidial keratitis (MK) were infected after exposure to the pathogen at a hot spring...
April 19, 2017: Water Research
https://www.readbyqxmd.com/read/28431691/sensorimotor-activity-measured-via-oscillations-of-eeg-mu-rhythms-in-speech-and-non-speech-discrimination-tasks-with-and-without-segmentation-demands
#18
David Thornton, Ashley W Harkrider, David Jenson, Tim Saltuklaroglu
Better understanding of the role of sensorimotor processing in speech and non-speech segmentation can be achieved with more temporally precise measures. Twenty adults made same/different discriminations of speech and non-speech stimuli pairs, with and without segmentation demands. Independent component analysis of 64-channel EEG data revealed clear sensorimotor mu components, with characteristic alpha and beta peaks, localized to premotor regions in 70% of participants.Time-frequency analyses of mu components from accurate trials showed that (1) segmentation tasks elicited greater event-related synchronization immediately following offset of the first stimulus, suggestive of inhibitory activity; (2) strong late event-related desynchronization in all conditions, suggesting that working memory/covert replay contributed substantially to sensorimotor activity in all conditions; (3) stronger beta desynchronization in speech versus non-speech stimuli during stimulus presentation, suggesting stronger auditory-motor transforms for speech versus non-speech stimuli...
April 18, 2017: Brain and Language
https://www.readbyqxmd.com/read/28431630/kynurenic-acid-and-its-analogue-can-alter-the-opioid-receptor-g-protein-signaling-after-acute-treatment-via-nmda-receptor-in-rat-cortex-and-striatum
#19
Reza Samavati, Ferenc Zádor, Edina Szűcs, Bernadett Tuka, Diána Martos, Gábor Veres, Róbert Gáspár, István M Mándity, Ferenc Fülöp, László Vécsei, Sándor Benyhe, Anna Borsodi
Previously, we have shown that the N-methyl d-aspartate (NMDA)-receptor antagonist kynurenic acid (KYNA) and its analogue KYNA1 do not bind directly to mu, kappa and delta opioid receptors in vitro. On the other hand, chronic administration of KYNA and KYNA1 resulted in region (cortex vs striatum) and opioid receptor-type specific alterations in G-protein activation of mouse brain homogenates. Here we describe for the first time the acute effect of KYNA and KYNA1 on opioid receptor function with the possible involvement of the NMDA receptor...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28430789/mir-9-3p-augments-apoptosis-induced-by-h2o2-through-down-regulation-of-herpud1-in-glioma
#20
Ling Yang, Yongping Mu, Hongwei Cui, Yabing Liang, Xiulan Su
MicroRNAs are short, single-stranded non-coding RNA molecules that function as regulators of tumor progression in various cancers, including glioma. The present study sought to investigate the biological functions of miR-9-3p in glioma progression. The results of a microRNA microarray indicated that microRNA-9-3p (miR-9-3p, miR-9*) is down-regulated in high-grade (grades III and IV) gliomas compared with non-tumor tissues. These results were confirmed with real-time PCR. The miR-9-3p expression level was associated with age and tumor grade...
2017: PloS One
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