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https://www.readbyqxmd.com/read/29778080/atrazine-xenobiotic-nuclear-receptor-interactions-induce-cardiac-inflammation-and-endoplasmic-reticulum-stress-in-quail-coturnix-coturnix-coturnix
#1
Xue-Nan Li, Yu-Zhu Zuo, Lei Qin, Wei Liu, Yan-Hua Li, Jin-Long Li
Atrazine (ATR) is one of the most extensively used herbicide that eventually leaches into groundwater and surface water from agricultural areas. Exposure to ATR does harm to the health of human and animals, especially the heart. However, ATR exposure caused cardiotoxicity in bird remains unclear. To evaluate ATR-exerted potential cardiotoxicity in heart, quail were exposed with 0, 50, 250, and 500 mg/kg BW/day ATR by gavage treatment for 45 days. Cardiac histopathological alternation was observed in ATR-induced quail...
May 9, 2018: Chemosphere
https://www.readbyqxmd.com/read/29778021/the-homing-of-human-umbilical-cord-derived-mesenchymal-stem-cells-and-the-subsequent-modulation-of-macrophage-polarization-in-type-2-diabetic-mice
#2
Yaqi Yin, Haojie Hao, Yu Cheng, Jieqing Gao, Jiejie Liu, Zongyan Xie, Qi Zhang, Li Zang, Weidong Han, Yiming Mu
Umbilical cord-derived mesenchymal stem cells (UC-MSCs), with both immunomodulatory and pro-regenerative properties, are promising for the treatment of type 2 diabetes mellitus (T2DM). As efficient cell therapy largely relies on appropriate homing to target tissues, knowing where and to what extent injected UC-MSCs have homed is critically important. However, bio-distribution data for UC-MSCs in T2DM subjects are extremely limited. Beneficial effects of UC-MSCs on T2DM subjects are associated with increased M2 macrophages, but no systemic evaluation of M2 macrophages has been performed in T2DM individuals...
May 15, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29778018/phytochemistry-and-pharmacology-of-anti-depressant-medicinal-plants-a-review
#3
REVIEW
Jeanette Martins, Brijesh S
Stress renders an individual to experience mental pressure and exhaustion which brings about feelings of anxiety, depression, anger and/or other negative emotions. Depression affects a person's state of mind, behaviour, health and is often associated with suicide. The use of anti-depressant drugs as therapeutic agents is associated with symptoms such as, delayed onset of action, side-effects, drug-drug and dietary interactions, sexual dysfunction, cardiac toxicity, etc. Thus, there is need to target these issues and improve current treatment options...
May 16, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29777999/targeted-delivery-of-cd44s-sirna-by-scfv-overcomes-de-novo-resistance-to-cetuximab-in-triple-negative-breast-cancer
#4
Wenyan Fu, Hefen Sun, Yang Zhao, Mengting Chen, Lipeng Yang, Xueli Yang, Wei Jin
The overexpression of EGFR often occurs in TNBC, and the anti-EGFR receptor antibody cetuximab is used widely to treat metastatic cancer in the clinic. However, EGFR-targeted therapies have been developed for TNBC without clinical success. In this study, we show that impaired EGFR degradation is crucial for resistance to cetuximab, which depends on the cell surface molecule CD44. To further investigate the role of CD44 in EGFR signaling and its treatment potential, we developed a targeting fusion protein composed of an anti-EGFR scFv generated from cetuximab and truncated protamine, called Ce-tP...
May 16, 2018: Molecular Immunology
https://www.readbyqxmd.com/read/29777989/synthesis-antiproliferative-activity-and-mechanism-of-gallium-iii-thiosemicarbazone-complexes-as-potential-anti-breast-cancer-agents
#5
Jinxu Qi, Qian Yao, Kun Qian, Liang Tian, Zhen Cheng, Dongmei Yang, Yihong Wang
Five thiosemicarbazone ligands were synthesized and characterized by condensation with different aldehydes or ketones by 4-phenylthiosemicarbazone. The representative dichlorido[2-(Di-2-pyridinylmethylene)-Nphenylhydrazinecarbothioamide-N,N,S]-gallium(III) (Ga4) was characterized by X-ray single crystal diffraction, which was 1:1 ligand/Ga(III) complexes. The structure-activity relationship of these ligands and Ga (III) complexes have been investigated, and the results demonstrate that the formation of Ga (III) complexes have significant antiproliferative activity over the corresponding ligands...
May 14, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29777985/liquid-chromatography-tandem-mass-spectrometry-for-the-quantification-of-moxifloxacin-ciprofloxacin-daptomycin-caspofungin-and-isavuconazole-in-human-plasma
#6
Julian Hösl, André Gessner, Nahed El-Najjar
A simple and precise ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method was developed for the simultaneous analysis of five anti-infective agents used to treat severe infections [three antibiotics (daptomycin, moxifloxacin, ciprofloxacin) and two antifungals (isavuconazole, caspofungin)] in human plasma. Sample preparation was based on protein precipitation with ice cold methanol. All five agents were analyzed with the corresponding isotopically labeled internal standards. All analytes were detected in multiple reactions monitoring (MRM) using API 4000 triple-quadrupole mass spectrometer with electrospray (ESI) source operating in positive mode...
May 12, 2018: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29777955/perspectives-and-limitations-for-nucleo-t-side-analogs-in-future-hbv-therapies
#7
REVIEW
Massimo Levrero, Miroslava Subic, Francois Villeret, Fabien Zoulim
The latest generation of nucleo(t)side analogs (NAs) provide robust virus suppression with high barrier to resistance. Long term NAs treatment is associated with a partial restoration in HBV-specific T-cell functions, regression of fibrosis, no disease progression and a reduction of HCC risk but rarely lead to cure and life-long treatments is often required. New insights into the hepatitis B viral life cycle and the host immune response have expanded the potential targets for drug therapies with interesting antiviral candidates and novel immunotherapeutic approaches in early stage development...
May 16, 2018: Current Opinion in Virology
https://www.readbyqxmd.com/read/29777943/paraneoplastic-striatal-encephalitis-and-myelitis-associated-with-anti-cv2-crmp-5-antibodies-in-a-patient-with-small-cell-lung-cancer
#8
Nese Dericioglu, Rahsan Gocmen, Ersin Tan
No abstract text is available yet for this article.
May 15, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29777902/chemical-characterization-and-cerebroprotective-effect-of-methanolic-root-extract-of-colebrookea-oppositifolia-in-rats
#9
Gollapalle Lakshminarayanashastry Viswanatha, Marikunte V Venkataranganna, Nunna Bheema Lingeswara Prasad, Shylaja Hanumanthappa
ETHNOPHARMACOLOGICAL RELEVANCE: Colebrookea oppositifolia Smith is one of the extensively used plants to treat neurological conditions such as epilepsy by the various ethnic communities in sub-Himalayan regions of India such as Bhoxa, Tharu and nomadic Gujjars. AIM OF THE STUDY: This study was conducted to evaluate the cerebroprotective effect of C. oppositifolia methanolic root (MeCO) extract in Wistar rats. MATERIALS AND METHODS: The MeCO was characterized for total phenolic content and later subjected for detailed liquid chromatography-mass spectrometry analysis...
May 16, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29777901/interrogation-of-ethnomedicinal-plants-for-synthetic-lethality-effects-in-combination-with-deficiency-in-the-dna-repair-endonuclease-rad1-using-a-yeast-cell-based-assay
#10
Hsu Mon Aung, Chananya Huangteerakul, Wittaya Panvongsa, Amornrat N Jensen, Arthit Chairoungdua, Suchada Sukrong, Laran T Jensen
ETHNOPHARMACOLOGICAL RELEVANCE: Plant materials used in this study were selected based on the ethnobotanical literature. Plants have either been utilized by Thai practitioners as alternative treatments for cancer or identified to exhibit anti-cancer properties. AIM OF THE STUDY: To screen ethnomedicinal plants using a yeast cell-based assay for synthetic lethal interactions with cells deleted for RAD1, the yeast homologue of human ERCC4 (XPF) MATERIALS AND METHODS: Ethanolic extracts from thirty-two species of medicinal plants utilized in Thai traditional medicine were screened for synthetic lethal/sick interactions using a yeast cell-based assay...
May 16, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29777877/multi-walled-carbon-nanotubeinduced-inhalation-toxicity-recognizing-nano-bis-demethoxy-curcumin-analog-as-an-ameliorating-candidate
#11
Arul Prakash Francis, Thiyagarajan Devasena, Selvam Ganapathy, Venkata Rajsekhar Palla, Prakhya Balakrishna Murthy, Sundara Ramaprabhu
Human beings and ecosystems are being possibly exposed to CNTs, as there is a rise in global production rate of carbon nanotubes (CNTs). This may affect the health of humans and increases the environmental risk. We have already reported the pulmonary toxicity due to the inhalation of MWCNTs. We claim that a compound with anti-inflammatory and antioxidant activity may ameliorate the CNT-induced toxic effect. With this view, we have investigated the ameliorative effect of intravenously-administered nano bis-demethoxy curcumin analog (NBDMCA) against MWCNTs-induced inhalation toxicity by examining the lung histopathology for inflammatory cell dynamics, pulmonary remodeling and estimating the inflammatory biomarkers in the broncho-alveolar lavage fluid...
May 16, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29777855/polymer-lipid-hybrid-nanoparticles-as-enhanced-indomethacin-delivery-systems
#12
Annalisa Dalmoro, Sabrina Bochicchio, Shamil F Nasibullin, Paolo Bertoncin, Gaetano Lamberti, Anna Angela Barba, Rouslan I Moustafine
Non-steroidal anti-inflammatory drugs (NSAIDs), i.e. indomethacin used for rheumatoid arthritis and non-rheumatoid inflammatory diseases, are known for their injurious actions on the gastrointestinal (GI) tract. Mucosal damage can be avoided by using nanoscale systems composed by a combination of liposomes and biodegradable natural polymer, i.e. chitosan, for enhancing drug activity. Aim of this study was to prepare chitosan-lipid hybrid delivery systems for indomethacin dosage through a novel continuous method based on microfluidic principles...
May 16, 2018: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29777833/endocrine-disrupting-activities-and-immunomodulatory-effects-in-lymphoblastoid-cell-lines-of-diclofenac-4-hydroxydiclofenac-and-paracetamol
#13
Ivana Klopčič, Tijana Markovič, Irena Mlinarič-Raščan, Marija Sollner Dolenc
A critical literature review reveals that knowledge of side effects of pharmaceuticals diclofenac and paracetamol is extremely important because of their widespread use and occurrence in the environment. In order to delineate whether these compounds have endocrine activity and influence on the immune system, we assessed the potential endocrine disrupting and immunomodulatory activities of: diclofenac (DIC), its metabolite 4-hydroxydiclofenac (4-HD) and paracetamol (PAR). Herein, we report on their impact on estrogen receptor (ER), androgen receptor (AR), glucocorticoid receptor (GR) and thyroid hormone receptor (TR)...
May 16, 2018: Toxicology Letters
https://www.readbyqxmd.com/read/29777822/effects-of-global-signal-regression-and-subtraction-methods-on-resting-state-functional-connectivity-using-arterial-spin-labeling-data
#14
João Paulo Santos Silva, Luciana da Mata Mônaco, André Monteiro Paschoal, Ícaro Agenor Ferreira de Oliveira, Renata Ferranti Leoni
BACKGROUND: Arterial spin labeling (ASL) is an established magnetic resonance imaging (MRI) technique that is finding broader applications in functional studies of the healthy and diseased brain. To promote improvement in cerebral blood flow (CBF) signal specificity, many algorithms and imaging procedures, such as subtraction methods, were proposed to eliminate or, at least, minimize noise sources. Therefore, this study addressed the main considerations of how CBF functional connectivity (FC) is changed, regarding resting brain network (RBN) identification and correlations between regions of interest (ROI), by different subtraction methods and removal of residual motion artifacts and global signal fluctuations (RMAGSF)...
May 16, 2018: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29777794/regulatory-t-cell-targeted-hybrid-nanoparticles-combined-with-immuno-checkpoint-blockage-for-cancer-immunotherapy
#15
Wenquan Ou, Raj Kumar Thapa, Liyuan Jiang, Soe Zar Chi, Milan Gautam, Jae-Hoon Chang, Jee-Heon Jeong, Sae Kwang Ku, Han-Gon Choi, Chul Soon Yong, Jong Oh Kim
Immunosuppression in tumor microenvironments induced by regulatory T (Treg) cells is regarded a critical mechanism of tumor immune escape and poses a major impediment to cancer immunotherapy. In this study, we developed tLyp1 peptide-conjugated hybrid nanoparticles for targeting Treg cells in the tumor microenvironment. The tLyp1 peptide-modified hybrid nanoparticles presented good stability and effective targeting to Treg cells, and they enhanced the effect of imatinib in downregulating Treg cell suppression through inhibition of STAT3 and STAT5 phosphorylation...
May 16, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29777783/accelerated-lipid-catabolism-and-autophagy-are-cancer-survival-mechanisms-under-inhibited-glutaminolysis
#16
Anna Halama, Michal Kulinski, Shaima S Dib, Shaza B Zaghlool, Kodappully S Siveen, Ahmad Iskandarani, Jonas Zierer, Kirti S Prabhu, Noothan J Satheesh, Aditya M Bhagwat, Shahab Uddin, Gabi Kastenmüller, Olivier Elemento, Steven S Gross, Karsten Suhre
Suppressing glutaminolysis does not always induce cancer cell death in glutamine dependent tumors because cells may switch to alternative energy sources. To reveal compensatory metabolic pathways, we investigated the metabolome-wide cellular response to inhibited glutaminolysis in cancer cells. Glutaminolysis inhibition with C.968 suppressed cell proliferation but was insufficient to induce cancer cell death. We found that lipid catabolism was activated as a compensation for glutaminolysis inhibition. Accelerated lipid catabolism, together with oxidative stress induced by glutaminolysis inhibition, triggered autophagy...
May 16, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29777774/mir-125b-5p-is-involved-in-oxygen-and-glucose-deprivation-injury-in-pc-12-cells-via-cbs-h-2-s-pathway
#17
Yaqi Shen, Zhuqing Shen, Lingyan Guo, Qiuyan Zhang, Zhijun Wang, Lei Miao, Minjun Wang, Jian Wu, Wei Guo, Yizhun Zhu
AIMS: Ischemic stroke is one of the leading causes of death worldwide. MicroRNAs (miRNAs) have been reported to be implicated in cerebral hypoxia injury and could serve as a therapeutic target. As the third gasotransmitter, hydrogen sulfide (H2 S) plays a critical role in hypoxia-induced injury in the central nervous system. Cystathionine β-synthase (CBS) is the main enzyme catalyzing the production of H2 S in brain. The objective of this study was to investigate the effect of miR-125b-5p on protecting against oxygen and glucose deprivation (OGD) injury in PC-12 cells by regulating CBS and H2 S generation...
May 16, 2018: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/29777754/hmgb1-neutralization-attenuates-hippocampal-neuronal-death-and-cognitive-impairment-in-rats-with-chronic-cerebral-hypoperfusion-via-suppressing-inflammatory-responses-and-oxidative-stress
#18
Yue Hei, Rong Chen, Xicai Yi, Qianfa Long, Dakuan Gao, Weiping Liu
High mobility group box-1 (HMGB1) acts as a proinflammatory molecule once released into the extracellular space and inhibition of HMGB1 signaling has been reported be neuroprotective in neurodegenerative diseases. Besides, chronic cerebral hypoperfusion (CCH) causes cognitive impairment in neurodegenerative diseases. Here we tested the protective role of HMGB1 inhibition using anti-HMGB1 neutralizing antibody (Ab) against CCH in rats after bilateral common carotid artery occlusion (2VO). 169 male Sprague-Dawley rats underwent 2VO or sham operation...
May 16, 2018: Neuroscience
https://www.readbyqxmd.com/read/29777742/a-functional-glycoproteomics-approach-identifies-cd13-as-a-novel-e-selectin-ligand-in-breast-cancer
#19
M A Carrascal, M Silva, J A Ferreira, R Azevedo, D Ferreira, A M N Silva, D Ligeiro, L L Santos, R Sackstein, P A Videira
BACKGROUND: The glycan moieties sialyl-Lewis-X and/or -A (sLeX/A ) are the primary ligands for E-selectin, regulating subsequent tumor cell extravasation into distant organs. However, the nature of the glycoprotein scaffolds displaying these glycans in breast cancer remains unclear and constitutes the focus of the present investigation. METHODS: We isolated glycoproteins that bind E-selectin from the CF1_T breast cancer cell line, derived from a patient with ductal carcinoma...
May 16, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29777723/effect-of-acetylcholinesterase-inhibitors-donepezil-and-rivastigmine-on-the-activity-and-expression-of-cyclooxygenases-in-a-model-of-the-inflammatory-action-of-fluoride-on-macrophages-obtained-from-thp-1-monocytes
#20
Marta Goschorska, Irena Baranowska-Bosiacka, Izabela Gutowska, Maciej Tarnowski, Katarzyna Piotrowska, Emilia Metryka, Krzysztof Safranow, Dariusz Chlubek
Inflammation is an important factor in the development of many diseases of the central nervous system, including Alzheimer's disease and other types of dementia. ‪Given that acetylcholinesterase inhibitors are also currently believed to have anti-inflammatory properties, the purpose of this study was to investigate the effect of acetylcholinesterase inhibitors (rivastigmine, donepezil) on cyclooxygenase activity and expression using the proinflammatory action of fluoride (F- ) on cultured macrophages obtained from THP-1 monocytes...
May 16, 2018: Toxicology
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