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https://www.readbyqxmd.com/read/29142418/marantodes-pumilum-blume-kuntze-inhibited-secretion-of-lipopolysaccharide-and-monosodium-urate-crystal-stimulated-cytokines-and-plasma-prostaglandin-e2
#1
Eldiza Puji Rahmi, Jamia Azdina Jamal, Endang Kumolosasi, Juriyati Jalil, Nor-Ashila Aladdin
Background: Marantodes pumilum is traditionally used for dysentery, gonorrhea, and sickness in the bones. Previous studies revealed its antibacterial and xanthine oxidase inhibitory activities. Objective: To evaluate the inhibitory effects of three M. pumilum varieties on the secretion of lipopolysaccharide (LPS)- and monosodium urate crystal (MSU)-induced cytokines and plasma prostaglandin E2 (PGE2) in vitro. Materials and Methods: The leaves and roots of M...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29138493/suppression-of-srcap-chromatin-remodelling-complex-and-restriction-of-lymphoid-lineage-commitment-by-pcid2
#2
Buqing Ye, Benyu Liu, Liuliu Yang, Guanling Huang, Lu Hao, Pengyan Xia, Shuo Wang, Ying Du, Xiwen Qin, Pingping Zhu, Jiayi Wu, Nobuo Sakaguchi, Junyan Zhang, Zusen Fan
Lymphoid lineage commitment is an important process in haematopoiesis, which forms the immune system to protect the host from pathogen invasion. However, how multipotent progenitors (MPP) switch into common lymphoid progenitors (CLP) or common myeloid progenitors (CMP) during this process remains elusive. Here we show that PCI domain-containing protein 2 (Pcid2) is highly expressed in MPPs. Pcid2 deletion in the haematopoietic system causes skewed lymphoid lineage specification. In MPPs, Pcid2 interacts with the Zinc finger HIT-type containing 1 (ZNHIT1) to block Snf2-related CREBBP activator protein (SRCAP) activity and prevents the deposition of histone variant H2A...
November 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/29123128/pink1-mediated-phosphorylation-of-letm1-regulates-mitochondrial-calcium-transport-and-protects-neurons-against-mitochondrial-stress
#3
En Huang, Dianbo Qu, Tianwen Huang, Nicoletta Rizzi, Wassamon Boonying, Dorothy Krolak, Paolo Ciana, John Woulfe, Christine Klein, Ruth S Slack, Daniel Figeys, David S Park
Mutations in PTEN-induced kinase 1 (PINK1) result in a recessive familial form of Parkinson's disease (PD). PINK1 loss is associated with mitochondrial Ca(2+) mishandling, mitochondrial dysfunction, as well as increased neuronal vulnerability. Here we demonstrate that PINK1 directly interacts with and phosphorylates LETM1 at Thr192 in vitro. Phosphorylated LETM1 or the phospho-mimetic LETM1-T192E increase calcium release in artificial liposomes and facilitates calcium transport in intact mitochondria. Expression of LETM1-T192E but not LETM1-wild type (WT) rescues mitochondrial calcium mishandling in PINK1-deficient neurons...
November 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/29115830/gastrodin-and-isorhynchophylline-synergistically-inhibit-mpp-induced-oxidative-stress-in-sh-sy5y-cells-by-targeting-erk1-2-and-gsk-3%C3%AE-pathways-involvement-of-nrf2-nuclear-translocation
#4
Qiang Li, Chengu Niu, Xiaojie Zhang, Miaoxian Dong
The pathogenesis of Parkinson's disease (PD) is multifactorial event. Combination therapies might be more effective in controlling the disease. Thus, the studies reported were designed to test the hypothesis that gastrodin (GAS)-induced de novo synthesis of nuclear factor E2-related factor 2 (Nrf2) and isorhynchophylline (IRN) inhibition of Nrf2 nuclear export contribute to their additive or synergistic neuroprotective effect. Here, we have demonstrated that the combination of GAS and IRN (GAS/IRN) protects SH-SY5Y cells against 1-methyl-4-phenylpyridinium (MPP(+)) toxicity in a synergistic manner...
November 17, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/29109776/sequential-delivery-of-cyclopeptide-ra-v-and-doxorubicin-for-combination-therapy-on-resistant-tumor-and-in-situ-monitoring-of-cytochrome-c-release
#5
Huachao Chen, Yurong Wang, Yongrong Yao, Shenglin Qiao, Hao Wang, Ninghua Tan
A programmed drug delivery system that can achieve sequential release of multiple therapeutics under different stimulus holds great promise to enhance the treatment efficacy and overcome multi-drug resistance (MDR) in tumor. Herein, multi-organelle-targeted and pH/ cytochrome c (Cyt c) dual-responsive nanoparticles were designed for combination therapy on resistant tumor. In this system (designated DGLipo NPs), doxorubicin (Dox) was intercalated into the DNA duplex containing a Cyt c aptamer, which subsequently loaded in the dendrigraftpoly-L-lysines (DGL) cores of DGLipo NPs, while cyclopeptide RA-V was doped into the pH-sensitive liposomal shells...
2017: Theranostics
https://www.readbyqxmd.com/read/29105345/estradiol-inhibits-nlrp3-inflammasome-in-fibroblast-like-synoviocytes-activated-by-lipopolysaccharide-and-adenosine-triphosphate
#6
Jianfeng Shi, Weibo Zhao, Haijian Ying, Ying Zhang, Juping Du, Shuaishuai Chen, Jun Li, Bo Shen
OBJECTIVE: Nucleotide binding domain and leucine-rich repeat pyrin 3 domain (NLRP3) inflammasome is known for activating pro-inflammatory cytokines in knee osteoarthritis (OA). This study was performed to identify whether NLRP3 inflammasome can be triggered by lipopolysaccharides (LPS) and adenosine triphos adenine (ATP), which are positively related with knee OA severity in joint-spaces, in human fibroblast-like synoviocytes (FLS), and to identify whether estrogen would inhibit the activation of NLRP3 inflammasome...
November 3, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29100129/liposomes-containing-cholesterol-and-mitochondria-penetrating-peptide-mpp-for-targeted-delivery-of-antimycin-a-to-a549-cells
#7
Sudipta Mallick, Le Thi Thuy, Seulgi Lee, Jong-Ii Park, Joon Sig Choi
No abstract text is available yet for this article.
October 18, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29090354/molecular-alterations-in-a-new-cell-line-ku-lu-mppt3-established-from-a-human-lung-adenocarcinoma-with-a-micropapillary-pattern
#8
Yukiko Matsuo, Kazu Shiomi, Dai Sonoda, Masashi Mikubo, Masahito Naito, Yoshio Matsui, Tsutomu Yoshida, Yukitoshi Satoh
PURPOSE: Lung adenocarcinomas with a micropapillary pattern (MPP) are characterized by more frequent and pronounced vascular invasion, higher incidence and more advanced lymph node involvement and poorer prognosis than papillary adenocarcinomas without an MPP. Here we established a new lung cancer cell line featuring micropapillary structure. METHODS: A 73-year-old never-smoker Japanese female, presenting with an abnormal chest shadow, was diagnosed with a clinical T2aN0M0 Stage IB lung adenocarcinoma and underwent left upper lobectomy with mediastinal lymph node dissection...
November 1, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29071441/kinetic-characterization-of-the-inhibition-of-protein-tyrosine-phosphatase-1b-by-vanadyl-vo-2-chelates
#9
Jason Hon, Michelle S Hwang, Meara A Charnetzki, Issra J Rashed, Patrick B Brady, Sarah Quillin, Marvin W Makinen
Protein tyrosine phosphatases (PTPases) are a prominent focus of drug design studies because of their roles in homeostasis and disorders of metabolism. These studies have met with little success because (1) virtually all inhibitors hitherto exhibit only competitive behavior and (2) a consensus sequence H/V-C-X5-R-S/T characterizes the active sites of PTPases, leading to low specificity of active site directed inhibitors. With protein tyrosine phosphatase-1B (PTP1B) identifed as the target enzyme of the vanadyl (VO(2+)) chelate bis(acetylacetonato)oxidovanadium(IV) [VO(acac)2] in 3T3-L1 adipocytes [Ou et al...
December 2017: Journal of Biological Inorganic Chemistry: JBIC
https://www.readbyqxmd.com/read/29067118/tectorigenin-attenuates-the-mpp-induced-sh-sy5y-cell-damage-indicating-a-potential-beneficial-role-in-parkinson-s-disease-by-oxidative-stress-inhibition
#10
Ping Gong, Fang Deng, Wei Zhang, Jin Ji, Jia Liu, Yinan Sun, Jiayu Hu
Tectorigenin is a plant isoflavonoid primarily derived from the flowers of Pueraria thomsonii Benth. Although various biological properties of tectorigenin have been reported, such as its antioxidant activity, the effects of tectorigenin on the cellular models of Parkinson's disease have not yet been elucidated. The aims of the current study were to investigate whether tectorigenin prevents neurotoxicity induced by MPP(+) (also known as 1-methyl-4-phenylpyridinium) in SH-SY5Y cells and to elucidate the underlying protective mechanism...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29066040/the-value-of-three-dimensional-photogrammetry-in-isolated-sagittal-synostosis-impact-of-age-and-surgical-technique-on-intracranial-volume-and-cephalic-index%C3%A2-a-retrospective-cohort-study
#11
Christian Mertens, Eline Wessel, Moritz Berger, Oliver Ristow, Jürgen Hoffmann, Katinka Kansy, Christian Freudlsperger, Heidrun Bächli, Michael Engel
PURPOSE: The aim of this study was to compare the outcome of intracranial volume (ICV) and cephalic index (CI) between two different techniques for surgical therapy of sagittal synostosis. MATERIAL AND METHODS: Between 2011 and 2015, all patients scheduled for surgical therapy of sagittal synostosis were consecutively enrolled. All patients younger than 6 months underwent early extended strip craniectomy (ESC group), and patients older than 6 months underwent late modified pi-procedure (MPP group)...
September 22, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29062904/ammonia-induced-mitochondrial-dysfunction-and-energy-metabolism-disturbances-in-isolated-brain-and-liver-mitochondria-and-the-effect-of-taurine-administration-relevance-to-hepatic-encephalopathy-treatment
#12
Hossein Niknahad, Akram Jamshidzadeh, Reza Heidari, Mahdi Zarei, Mohammad Mehdi Ommati
INTRODUCTION: Ammonia-induced oxidative stress, mitochondrial dysfunction, and energy crisis are known as some the major mechanisms of brain injury in hepatic encephalopathy (HE). Hyperammonemia also affects the liver and hepatocytes. Therefore, targeting mitochondria seems to be a therapeutic point of intervention in the treatment of HE. Taurine is an abundant amino acid in the human body. Several biological functions including the mitochondrial protective properties are attributed to this amino acid...
September 2017: Clin Exp Hepatol
https://www.readbyqxmd.com/read/29062606/the-neuroprotective-effect-of-nicotine-in-parkinson-s-disease-models-is-associated-with-inhibiting-parp-1-and-caspase-3-cleavage
#13
Justin Y D Lu, Ping Su, James E M Barber, Joanne E Nash, Anh D Le, Fang Liu, Albert H C Wong
Clinical evidence points to neuroprotective effects of smoking in Parkinson's disease (PD), but the molecular mechanisms remain unclear. We investigated the pharmacological pathways involved in these neuroprotective effects, which could provide novel ideas for developing targeted neuroprotective treatments for PD. We used the ETC complex I inhibitor methylpyridinium ion (MPP(+)) to induce cell death in SH-SY5Y cells as a cellular model for PD and found that nicotine inhibits cell death. Using choline as a nicotinic acetylcholine receptor (nAChR) agonist, we found that nAChR stimulation was sufficient to protect SH-SY5Y cells against cell death from MPP(+)...
2017: PeerJ
https://www.readbyqxmd.com/read/29060866/a-marked-point-process-approach-for-identifying-neural-correlates-of-tics-in-tourette-syndrome
#14
Carlos A Loza, Jonathan B Shute, Jose C Principe, Michael S Okun, Aysegul Gunduz
We propose a novel interpretation of local field potentials (LFP) based on a marked point process (MPP) framework that models relevant neuromodulations as shifted weighted versions of prototypical temporal patterns. Particularly, the MPP samples are categorized according to the well known oscillatory rhythms of the brain in an effort to elucidate spectrally specific behavioral correlates. The result is a transient model for LFP. We exploit data-driven techniques to fully estimate the model parameters with the added feature of exceptional temporal resolution of the resulting events...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29052403/-serum-metabonomics-in-mice-infected-with-mycoplasma-pneumoniae-by-uplc-q-tof-ms
#15
Wen-Feng Wei, Yan-Tao Chu, Ye Liu, Jin-Hai Huo, Wei-Ming Wang
Ultra high performance liquid chromatography coupled with tandem quadrupole time of flight mass spectrometry(UPLC-Q-TOF-MS) was applied to metabonomics study in BALB/c mice infected with mycoplasma pneumoniae(MP) to analyze the changes in serum endogenous metabolites, identify potential biomarkers associated with mycoplasma pneumoniae pneumonia(MPP), analyze the metabolic pathway and explore the pathogenic mechanism of MPP. The BALB/c mice were inoculated with MP by repeated intranasal infectious routes to establish MPP models, and the results of the lung tissue biopsy, IgM and mycoplasma nucleic acid content determination showed that the models of MP in BALB/c mice were successfully established...
April 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29047849/dispersed-fringe-accumulation-based-left-subtract-right-method-for-fine-co-phasing-of-a-dispersed-fringe-sensor
#16
Yang Li, Shengqian Wang, Changhui Rao
In this paper, a dispersed-fringe-accumulation (DFA)-based left-subtract-right (LSR) piston estimation method (DFA-LSR), in which the dispersed fringe image is accumulated in the dispersed direction, and then the LSR method is used to estimate the piston error, is proposed for dispersed fringe sensors (DFS) in the fine co-phasing stage. The DFS is usually used to detect the piston errors (optical path difference) between different segmented mirrors or synthetic aperture telescopes. The DFA-LSR makes up for the shortcomings of the main peak position (MPP) method, which suffers from the constant offset in the pixel counts...
May 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/29036370/estimation-of-the-effects-of-multipoint-pacing-on-battery-longevity-in-routine-clinical-practice
#17
Finn Akerström, Irene Narváez, Alberto Puchol, Marta Pachón, Cristina Martín-Sierra, Moisés Rodríguez-Mañero, Luis Rodríguez-Padial, Miguel A Arias
Aims: Multipoint pacing (MPP) permits simultaneous multisite pacing of the left ventricle (LV); initial studies suggest haemodynamic and clinical benefits over conventional (single LV site) cardiac resynchronization therapy (CRT). The aim of this study was to estimate the impact of MPP activation on battery longevity in routine clinical practice. Methods and results: Patient (n = 46) and device data were collected from two centres at least 3 months after MPP-CRT device implantation...
September 23, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29034563/heart-failure-study-of-multipoint-pacing-effects-on-ventriculoarterial-coupling-rationale-and-design-of-the-humvee-trial
#18
Christina Chrysohoou, Polychronis Dilaveris, Christos-Konstantinos Antoniou, Ioannis Skiadas, Konstantinos Konstantinou, Konstantinos Gatzoulis, Ioannis Kallikazaros, Dimitrios Tousoulis
Cardiac resynchronization therapy (CRT) is an established therapy for symptomatic heart failure (HF). Unfortunately, many recipients remain nonresponders. Studies have revealed the potential role of multipoint pacing (MPP) in improving response and outcomes. The aim of this study is to compare the effects of MPP against those of standard biventricular pacing (BVP) on (i) ventriculoarterial coupling (VAC) and energy efficiency of the failing heart, (ii) diastolic function, (iii) quality of life, and (iv) NT-proBNP levels and glomerular filtration rate (GFR) during a follow-up of 13 months...
October 15, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/29033192/chemical-affinity-of-10-methacryloyloxydecyl-dihydrogen-phosphate-to-dental-zirconia-effects-of-molecular-structure-and-solvents
#19
Ying Chen, Zhicen Lu, Mengke Qian, Huaiqin Zhang, Chen Chen, Haifeng Xie, Franklin R Tay
OBJECTIVES: To examine whether solvents and changing the molecular structure of 10-Methacryloyloxydecyl dihydrogen phosphate (10-MDP) affect its chemical affinity to Yttria-stabilized tetragonal zirconia polycrystals (Y-TZP). METHODS: The present work investigated the chemical affinity between Y-TZP and 10-MDP dissolved in different solvents (acetone/ethanol/water or mixture) using X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy, and thermodynamic calculations...
October 13, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29031457/microvalve-controlled-multi-functional-microfluidic-chip-for-divisional-cell-co-culture
#20
Rui Li, Xingjian Zhang, Xuefei Lv, Lina Geng, Yongrui Li, Kuiwei Qin, Yulin Deng
Pneumatic micro-valve controlled microfluidic chip provides precise fluidic control for cell manipulation. In this paper, a multi-functional microfluidic chip was designed for three separate experiments: 1. Different cell lines were dispensed and cultured; 2. Three transfected SH-SY5Y cells were introduced and treated with methyl-phenyl-pyridinium (MPP(+)) as drug delivery mode; 3. Specific protection and interaction were observed among cell co-culture after nerve damage. The outcomes revealed the potential and practicability of our entire multi-functional pneumatic chip system on different cell biology applications...
October 12, 2017: Analytical Biochemistry
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