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https://www.readbyqxmd.com/read/27924725/anticancer-drug-targets-of-salvia-phytometabolites-chemistry-biology-and-omics
#1
Da-Cheng Hao, Guang-Bo Ge, Pei-Gen Xiao
Salvia displays diverse anticancer properties, which are attributable to their diterpene and phenolic contents. There is no comprehensive review on the anticancer diversity and molecular targets of Salvia components. We investigate the diversity and molecular targets of Salvia phytometabolites responsible for the prevention and treatment of cancer and sarcoma. Traditional therapeutic knowledge suggests that Salvia species can be used to develop anticancer drugs. Lots of concerns have been raised for tanshinone (Tan) IIA and cryptotanshinone...
December 7, 2016: Current Drug Targets
https://www.readbyqxmd.com/read/27921338/melancholic-and-atypical-depression-as-predictor-and-moderator-of-outcome-in-cognitive-behavior-therapy-and-pharmacotherapy-for-adult-depression
#2
Pim Cuijpers, Erica Weitz, Femke Lamers, Brenda W Penninx, Jos Twisk, Robert J DeRubeis, Sona Dimidjian, Boadie W Dunlop, Robin B Jarrett, Zindel V Segal, Steven D Hollon
BACKGROUND: Melancholic and atypical depression are widely thought to moderate or predict outcome of pharmacological and psychological treatments of adult depression, but that has not yet been established. This study uses the data from four earlier trials comparing cognitive behavior therapy (CBT) versus antidepressant medications (ADMs; and pill placebo when available) to examine the extent to which melancholic and atypical depression moderate or predict outcome in an "individual patient data" meta-analysis...
December 6, 2016: Depression and Anxiety
https://www.readbyqxmd.com/read/27918554/asic1a-mediates-the-drug-resistance-of-human-hepatocellular-carcinoma-via-the-ca-2-pi3-kinase-akt-signaling-pathway
#3
Yihao Zhang, Ting Zhang, Chao Wu, Quan Xia, Dujuan Xu
Chemotherapy is the main treatment method of patients with advanced liver cancer. However, drug resistance is a serious problem in the treatment of hepatocellular carcinoma (HCC). Acid sensing ion channel 1a (ASIC1a) is a H(+)-gated cation channel; it mediates tumor cell migration and invasion, which suggests that it is involved in the development of malignant tumors. Therefore, we studied the relationship between ASIC1a and drug resistance in human hepatocellular carcinoma. In our study, we found that ASIC1a is highly expressed in human HCC tissue, and that its levels were significantly increased in resistant HCC cells Bel7402/FU and HepG2/ADM...
December 5, 2016: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/27914527/prophylactic-effects-of-alkaloids-from-ba-lotus-seeds-on-l-nna-induced-hypertension-in-mice
#4
Peng Sun, Kai Zhu, Cun Wang, Wei-Wei Liu, De-Guang Peng, Xin Zhao
Alkaloids from Ba lotus seeds (ABLS) are a kind of important functional compounds in lotus seeds. The present study was designed to determine its hypertension prophylactic effects in the L-NNA-induced mouse hypertension model. The mice were treated with ABLS, the serum and tissues levels of NO, MDA, ET-1, VEGF, and CGRP were determined using the experimental kits, the mRNA levels of various genes in the heart muscle and blood vessel tissues were further determined by RT-PCR assay. ABLS could reduce the systolic blood pressure (SBP), mean blood pressure (MBP), and diastolic blood pressure (DBP), compared to that of the model control group...
November 2016: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/27913346/automatic-design-of-high-sensitivity-color-filter-arrays-with-panchromatic-pixels
#5
Jia Li, Chenyan Bai, Zhouchen Lin, Jian Yu
In most of existing digital cameras, color images have to be reconstructed from raw images which only have one color sensed at each pixel, as their imaging sensors are covered by color filter arrays (CFAs). At each pixel a CFA usually allows only a portion of the light spectrum to pass through and thereby reduces the light sensitivity of pixels. To address this issue, previous works have explored adding panchromatic pixels into CFAs. However, almost all existing methods assign panchromatic pixels empirically, making the designed CFAs prone to aliasing artifacts...
December 1, 2016: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/27909650/pbpk-modeling-and-simulation-in-drug-research-and-development
#6
REVIEW
Xiaomei Zhuang, Chuang Lu
Physiologically based pharmacokinetic (PBPK) modeling and simulation can be used to predict the pharmacokinetic behavior of drugs in humans using preclinical data. It can also explore the effects of various physiologic parameters such as age, ethnicity, or disease status on human pharmacokinetics, as well as guide dose and dose regiment selection and aid drug-drug interaction risk assessment. PBPK modeling has developed rapidly in the last decade within both the field of academia and the pharmaceutical industry, and has become an integral tool in drug discovery and development...
September 2016: Acta Pharmaceutica Sinica. B
https://www.readbyqxmd.com/read/27904770/upregulating-mir-146a-by-physcion-reverses-multidrug-resistance-in-human-chronic-myelogenous-leukemia-k562-adm-cells
#7
Wenjun Liu, Juan He, Yiling Yang, Qulian Guo, Fei Gao
The aim of this study was to evaluate the role of miR-146a in the drug resistance of chronic myelogenous leukemia (CML) cells (K562/ADM) and to investigate the reversal effect of physcion, a natural compound, on the multidrug-resistance in CML. Our results showed that miR-146a was significantly downregulated in drug-resistant K562 cells and the overexpression of miR-146a in K562/ADM cells could restore the sensitivity to adriamycin (ADM). In addition, our results showed that the downregulation of miR-146a was associated with increase in CXCR4 expression, which was a direct target of miR-146a...
2016: American Journal of Cancer Research
https://www.readbyqxmd.com/read/27903217/rational-drug-discovery-of-hcv-helicase-inhibitor-improved-docking-accuracy-with-multiple-seedings-of-autodock-vina-and-in-situ-minimization
#8
SeeKhai Lim, Rozana Othman, Rohana Yusof, ChoonHan Heh
BACKGROUND: Hepatitis C is a significant cause for end-stage liver diseases and liver transplantation which affects approximate 3% of the global populations. Despite the present of several direct antiviral agents in the treatment of hepatitis C, the standard treatment for HCV is accompanied by several drawbacks such as adverse side effects, high pricing of medications and the rapid emerging rate of resistant HCV variants. OBJECTIVES: To discover potential inhibitors for HCV helicase through an optimized in silico approach...
November 30, 2016: Current Computer-aided Drug Design
https://www.readbyqxmd.com/read/27901175/adme-studies-and-preliminary-safety-pharmacology-of-ldt5-a-lead-compound-for-the-treatment-of-benign-prostatic-hyperplasia
#9
F Noël, J B Nascimento-Viana, L A S Romeiro, R O Silva, L F N Lemes, A S Oliveira, T B S Giorno, P D Fernandes, C L M Silva
This study aimed to estimate the absorption, distribution, metabolism and excretion (ADME) properties and safety of LDT5, a lead compound for oral treatment of benign prostatic hyperplasia that has previously been characterized as a multi-target antagonist of α1A-, α1D-adrenoceptors and 5-HT1A receptors. The preclinical characterization of this compound comprised the evaluation of its in vitro properties, including plasma, microsomal and hepatocytes stability, cytochrome P450 metabolism and inhibition, plasma protein binding, and permeability using MDCK-MDR1 cells...
2016: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/27896182/the-effect-of-sterile-acellular-dermal-matrix-use-on-complication-rates-in-implant-based-immediate-breast-reconstructions
#10
Jun Ho Lee, Youngsoo Park, Kyoung Wook Choi, Kyu-Jin Chung, Tae Gon Kim, Yong-Ha Kim
BACKGROUND: The use of acellular dermal matrix (ADM) in implant-based immediate breast reconstruction has been increasing. The current ADMs available for breast reconstruction are offered as aseptic or sterile. No published studies have compared aseptic and sterile ADM in implant-based immediate breast reconstruction. The authors performed a retrospective study to evaluate the outcomes of aseptic versus sterile ADM in implant-based immediate breast reconstruction. METHODS: Implant-based immediate breast reconstructions with ADM conducted between April 2013 and January 2016 were included...
November 2016: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/27895754/evaluation-of-the-efficacy-of-paclitaxel-with-curcumin-combination-in-ovarian-cancer-cells
#11
Zeng Liu, Yuan-Yuan Zhu, Zhao-Yuan Li, Si-Qing Ning
The aim of the present study was to evaluate the efficacy of paclitaxel combined with curcumin (CUR) against drug resistance in ovarian cancer cells. PLGA-phospholipid-PEG nanoparticles were prepared using the nano precipitation method. The size and morphology of the nanoparticles were determined using a transmission electron microscope and particle size analyzer. The encapsulation efficiency of nanoparticles was determined using the ultrafiltration centrifugation method. The dialysis method was used to study the release of PLGA-phospholipid-PEG nanoparticles...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27893634/comparison-of-different-acellular-dermal-matrix-adm-in-breast-reconstruction-the-50-50-study
#12
Troy A Pittman, Kenneth L Fan, Andrew Knapp, Shelby Frantz, Scott L Spear
BACKGROUND: Acellular Dermal Matrix (ADM) has enjoyed extensive use in primary and secondary alloplastic breast aesthetic and reconstructive surgery. The objective of this study is to examine clinical outcomes between available ADM: DermACELL(LifeNet Health, Virginia Beach, VA) and AlloDerm RTU (LifeCell, Branchburg, New Jersey). METHODS: A retrospective chart review was performed on 58 consecutive patients (100 breasts) reconstructed with either DermACELL(n=30 patients; 50 breasts) or AlloDerm RTU (n=28 patients; 50 breasts)...
November 21, 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27890372/protective-effect-of-antioxidant-on-renal-damage-caused-by-doxorubicin-chemotherapy-in-mice-with-hepatic-cancer
#13
Lei Liu, Yong-Fu Zhao, Wen-Hao Han, Tao Chen, Guo-Xin Hou, Xian-Zhou Tong
OBJECTIVES: To investigate the protective effects and mechanism of antioxidant TBHQ on renal damage caused by doxorubicin chemotherapy in mice with hepatic cancer. METHODS: Cell H22 of mice with hepatic cancer which was subcultured for three times was subcutaneously transplanted to the groin of right lower limb of 45 SPF Kunming mice to establish the transplanted tumor model. The doxorubicin chemotherapy group and antioxidant intervention group received intraperitoneal injection of ADM (1 mg/kg·0...
November 2016: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/27889179/estimation-of-rate-constants-of-pcb-dechlorination-reactions-using-an-anaerobic-dehalogenation-model
#14
Filiz Karakas, Ipek Imamoglu
This study aims to estimate anaerobic dechlorination rate constants (km) of reactions of individual PCB congeners using data from four laboratory microcosms set up using sediment from Baltimore Harbor. Pathway km values are estimated by modifying a previously developed model as Anaerobic Dehalogenation Model (ADM) which can be applied to any halogenated hydrophobic organic (HOC). Improvements such as handling multiple dechlorination activities (DAs) and co-elution of congeners, incorporating constraints, using new goodness of fit evaluation led to an increase in accuracy, speed and flexibility of ADM...
November 9, 2016: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/27888802/low-dose-triptolide-reverses-chemoresistance-in-adult-acute-lymphoblastic-leukemia-cells-via-reactive-oxygen-species-generation-and-dna-damage-response-disruption
#15
Haijun Zhao, Pengcheng Shi, Manman Deng, Zhiwu Jiang, Yin Li, Vinodh Kannappan, Weiguang Wang, Peng Li, Bing Xu
Chemoresistance represents a major challenge for treatment of acute lymphoblastic leukemia (ALL). Thus, new drugs to overcome chemoresistance in ALL are urgently needed. To this end, we established a cytarabine (araC)-resistant ALL cell line (NALM-6/R), which interestingly displayed cross-resistance towards doxorubicin (ADM). Here we report that low dose of triptolide (TPL), a natural product used for treating inflammatory diseases such as arthritis, could reverse araC and ADM resistance and in NALM-6/R cells as well as primary cells from patients with relapsed or refractory (R/R) ALL, reflected by inhibition of cell proliferation and induction of apoptosis in vitro, and repression of tumor growth in vivo in a mouse xenograft model...
November 19, 2016: Oncotarget
https://www.readbyqxmd.com/read/27885783/protective-effects-of-a-novel-nutritional-and-phytonutrient-blend-on-ultraviolet-radiation-induced-skin-damage-and-inflammatory-response-through-aging-defense-mechanisms
#16
Steven M Wood, Angela F Mastaloudis, Shelly N Hester, Russell Gray, Dale Kern, Jin Namkoong, Zoe D Draelos
BACKGROUND: The human body relies on several aging defense mechanisms (ADMs) to limit damage induced from pro-aging stressors (aging aggressors). However, such protective mechanisms can be compromised, leading to accelerated aging. The skin provides a model to probe the effects of an oral nutritional intervention on ADMs in response to ultraviolet radiation (UVR)-induced damage. OBJECTIVE: To determine whether supplementation with a novel nutritional and phytonutrient blend could protect against UVR-induced skin damage and positively influence facial skin attributes and characteristics by bolstering ADMs...
November 24, 2016: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/27878067/ultrasonography-findings-of-alloderm-%C3%A2-used-in-postmastectomy-alloplastic-breast-reconstruction-a-case-report-and-literature-review
#17
Young Seon Kim
AlloDerm(®) (LifeCell Corp.; Brancburg, NJ) is an acellular dermal matrix (ADM) that serves as an immunologically inert scaffold in plastic surgery. In breast reconstruction, it is used as a filler for lumpectomy defects and can be used to create the inferolateral portion of the tissue expander pocket or implant pocket in postmastectomy patients. However, there are limited reports of the radiologic findings of AlloDerm(®) in patients who have undergone postmastectomy reconstruction. Familiarity with the imaging features of AlloDerm(®) is essential for correct diagnosis...
July 2016: Iranian Journal of Radiology: a Quarterly Journal Published By the Iranian Radiological Society
https://www.readbyqxmd.com/read/27871869/use-of-read-across-to-simplify-the-toxicological-assessment-of-a-complex-mixture-of-lysimeter-leachate-metabolites-on-the-basis-of-chemical-similarity-and-adme-behavior
#18
Laurence H Hand, Kevan Richardson, Stephen T Hadfield, Sarah Whalley, Paul Rawlinson, Ewan D Booth
This paper describes the further development of a read-across approach applicable to the toxicological assessment of structurally-related xenobiotic metabolites. The approach, which can be applied in the absence of definitive identification of all the individual metabolites, draws on the use of chemical descriptors and multi-variate statistical analysis to define a composite "chemical space" and to classify and characterize closely-related subgroups within this. In this example, consideration of the descriptors driving grouping, combined with empirical evidence for lack of significant further biotransformation of metabolites, leads to the conclusion that, in the absence of any specific structural alerts, the relative toxicity of metabolites within a single grouping will be determined by their relative systemic exposure as described by their ADME characteristics...
November 18, 2016: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/27860549/new-potential-inhibitors-of-mtor-a-computational-investigation-integrating-molecular-docking-virtual-screening-and-molecular-dynamics-simulation
#19
Roger Kist, Rafael Andrade Caceres
The mTOR (mammalian or mechanistic Target Of Rapamycin), a complex metabolic pathway that involves multiple steps and regulators, is a major human metabolic pathway responsible for cell growth control in response to multiple factors and that is dysregulated in various types of cancer. The classical inhibition of the mTOR pathway is performed by rapamycin and its analogs (rapalogs). Considering that rapamycin binds to an allosteric site and performs a crucial role in the inhibition of the mTOR complex without causing the deleterious side effects common to ATP-competitive inhibitors, we employ ligand-based drug design strategies, such as virtual screening methodology, computational determination of ADME/Tox properties of selected molecules, and molecular dynamics in order to select molecules with the potential to become non ATP-competitive inhibitors of the mTOR enzymatic complex...
November 18, 2016: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/27860068/effect-of-osa-on-hypoxic-and-inflammatory-markers-during-cpap-withdrawal-further-evidence-from-three-randomized-control-trials
#20
Chris D Turnbull, Valentina A Rossi, Peter Santer, Esther I Schwarz, John R Stradling, Nayia Petousi, Malcolm Kohler
BACKGROUND AND OBJECTIVE: Obstructive sleep apnoea (OSA) is associated with cardiovascular disease. Intermittent hypoxia, endothelial dysfunction and adipose tissue-mediated inflammation have all been linked to cardiovascular disease in OSA. We therefore explored the effect of OSA on relevant associated blood markers: adrenomedullin (ADM), endocan, endothelin-1 (ET-1), resistin and vascular endothelial growth factor (VEGF). METHODS: Patients with OSA, established on and compliant with continuous positive airways pressure (CPAP) therapy for >1 year were included from three randomized controlled trials, conducted at two centres...
November 18, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
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