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https://www.readbyqxmd.com/read/29908497/stereoselective-effects-of-ibuprofen-in-adult-zebrafish-danio-rerio-using-uplc-tof-ms-based-metabolomics
#1
Yue Song, Tingting Chai, Zhiqiang Yin, Xining Zhang, Wei Zhang, Yongzhong Qian, Jing Qiu
Ibuprofen (IBU), as a commonly used non-steroidal anti-inflammatory drug (NSAID) and pharmaceutical and personal care product (PPCP), is frequently prescribed by doctors to relieve pain. It is widely released into environmental water and soil in the form of chiral enantiomers by the urination and defecation of humans or animals and by sewage discharge from wastewater treatment plants. This study focused on the alteration of metabolism in the adult zebrafish (Danio rerio) brain after exposure to R-(-)-/S-(+)-/rac-IBU at 5 μg L-1 for 28 days...
June 9, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29908461/air-pollution-and-the-fetal-origin-of-disease-a-systematic-review-of-the-molecular-signatures-of-air-pollution-exposure-in-human-placenta
#2
REVIEW
Leen J Luyten, Nelly D Saenen, Bram G Janssen, Karen Vrijens, Michelle Plusquin, Harry A Roels, Florence Debacq-Chainiaux, Tim S Nawrot
BACKGROUND: Fetal development is a crucial window of susceptibility in which exposure-related alterations can be induced on the molecular level, leading to potential changes in metabolism and development. The placenta serves as a gatekeeper between mother and fetus, and is in contact with environmental stressors throughout pregnancy. This makes the placenta as a temporary organ an informative non-invasive matrix suitable to investigate omics-related aberrations in association with in utero exposures such as ambient air pollution...
June 13, 2018: Environmental Research
https://www.readbyqxmd.com/read/29908455/oxidative-damage-and-antioxidant-defense-in-caiman-latirostris-broad-snouted-caiman-exposed-in-ovo-to-pesticide-formulations
#3
P M Burella, L M Odetti, M F Simoniello, G L Poletta
The surface used for agricultural production in Argentina significantly increased in recent years, mainly due to the expansion of soybean crops. As a result, the use of agrochemicals increased too. Many natural populations of Caiman latirostris (broad-snouted caiman) are affected by habitat fragmentation and the constant exposure to pesticides. This exposure could produce Reactive Oxygen Species. The negative imbalance between ROS generation and the capacity of the biological systems to eliminate the reactive intermediaries or avoid the damage is called Oxidative Stress...
June 13, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29908346/the-effects-of-resveratrol-and-exercise-on-age-and-gender-dependent-alterations-of-vascular-functions-and-biomarkers
#4
Sevtap Han, Nur Banu Bal, Gökhan Sadi, Suzan E Usanmaz, M Orhan Uludag, Emine Demirel-Yilmaz
The purpose of this study was to determine the effects of resveratrol and regular aerobic exercise on vascular functions and biomarkers related to vessel responsiveness in an age and gender-dependent manner. The study used young (3 months) and old (12 months) male and female Wistar albino rats. Resveratrol was given in the drinking water (0.05 mg/ml; approximately 7.5 mg/kg) for 6 weeks. In the exercise group, all rats performed treadmill running at 20 m/min on a 0° incline, 40 min/day, 3 times a week, for 6 weeks...
June 13, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29908324/pd-1-blockade-with-nivolumab-in-patients-with-recurrent-malignant-pleural-mesothelioma
#5
Josine Quispel-Janssen, Vincent van der Noort, Jeltje F de Vries, Marion Zimmerman, Ferry Lalezari, Erik Thunnissen, Kim Monkhorst, Robert Schouten, Laurel Schunselaar, Maria Disselhorst, Houke Klomp, Koen Hartemink, Sjaak Burgers, Wieneke Buikhuisen, Paul Baas
BACKGROUND: Malignant Pleural Mesothelioma (MPM) has limited treatment options and a poor outcome. PD-1/PD-L1 checkpoint inhibitors have proven efficacious in several cancer types. Nivolumab is a fully humanized monoclonal antibody against PD-1 with a favorable toxicity profile. In MPM, the immune system is considered to play an important role. We therefore tested nivolumab in recurrent MPM. METHODS: In this single center trial, patients with MPM received nivolumab 3mg/kg i...
June 13, 2018: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/29908303/hemoglobin-adducts-of-furfuryl-alcohol-in-genetically-modified-mouse-models-role-of-endogenous-sulfotransferases-1a1-and-1d1-and-transgenic-human-sulfotransferases-1a1-1a2
#6
Bernhard H Monien, Benjamin Sachse, Walter Meinl, Klaus Abraham, Alfonso Lampen, Hansruedi Glatt
Furfuryl alcohol (FFA) is a heat-induced food contaminant. Conversion by sulfotransferases (SULT) yields 2-sulfoxymethylfuran, which is prone to react with DNA and proteins. In order to monitor the internal FFA exposure we developed a technique for the mass spectrometric quantification of the adduct N-((furan-2-yl)methyl)-valine (FFA-Val) after cleavage from the N-termini of hemoglobin. In the current study the method was applied to investigate the influence of different SULT forms on the adduct formation in wild-type mice and three genetically modified mouse models treated with FFA...
June 13, 2018: Toxicology Letters
https://www.readbyqxmd.com/read/29908282/the-function-and-clinical-significance-of-eif3-in-cancer
#7
REVIEW
Yuting Yin, Jiali Long, Yanqin Sun, Hongmei Li, Enping Jiang, Chao Zeng, Wei Zhu
Abnormal regulation of gene expression is essential for tumorigenesis. Several studies indicate that regulation of oncogene expression and neoplastic transformation are controlled by subunits of eukaryotic translation initiation factors (eIFs). Eukaryotic translation initiation factor 3 (eIF3) is the largest (800 kDa) and the most complex mammalian initiation factor. It is composed of 13 non-identical polypeptides designated as eIF3a-m and plays a pivotal role in protein synthesis that bridges the 43S pre-initiation complex and eIF4F-bound mRNA...
June 13, 2018: Gene
https://www.readbyqxmd.com/read/29908222/oral-pemetrexed-facilitates-low-dose-metronomic-therapy-and-enhances-antitumor-efficacy-in-lung-cancer
#8
Foyez Mahmud, Ok-Cheol Jeon, Farzana Alam, Ruby Maharjan, Jeong Uk Choi, Jooho Park, Sojung Lee, Jin Woo Park, Dong Soo Lee, Youngro Byun
There is a growing interest in preclinical research to consider low-dose metronomic chemotherapy as antiangiogenic cancer treatment. Oral metronomic therapy, in particular, has shown much promise with its ease of daily administration and higher therapeutics window. In that regard, we developed oral pemetrexed using the physical complex with the bile acid enhancers (DCK). In a caco-2 permeability study, the oral pemetrexed/DCK complex had significantly higher drug uptake, and inhibited efflux transporter activity as well...
June 13, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29908168/biochemical-and-histological-effects-of-sub-chronic-exposure-to-atrazine-in-crayfish-cherax-destructor
#9
Alzbeta Stara, Antonin Kouba, Josef Velisek
Atrazine (ATR) is a triazine herbicide banned in the European Union. It remains one of the most widely used herbicides in other parts of the world. Considering the scarcity of data on its possible harm to the environment and to human health, we assessed sub-chronic effects of a 14-day exposure at the environmentally relevant concentration of 6.86 μg/L and at 10% of the 96hLC50 (1.21 mg/L) in crayfish Cherax destructor and their recovery in a 14-day period in ATR-free water. Indicators assessed were behavior; hemolymph biochemical profile; oxidative and antioxidant parameters in gill, hepatopancreas, and muscle; and histology of gill and hepatopancreas...
June 13, 2018: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29908147/neurofilament-light-chain-as-disease-biomarker-in-a-rodent-model-of-chemotherapy-induced-peripheral-neuropathy
#10
Cristina Meregalli, Giulia Fumagalli, Paola Alberti, Annalisa Canta, Valentina Alda Carozzi, Alessia Chiorazzi, Laura Monza, Eleonora Pozzi, Åsa Sandelius, Kaj Blennow, Henrik Zetterberg, Paola Marmiroli, Guido Cavaletti
The objective of this study is to test the feasibility of using serum neurofilament light chain (NfL) as a disease biomarker in Chemotherapy Induced Peripheral Neuropathy (CIPN) since this easy accessible biological test may have a large impact on clinical management and safety of cancer patients. We performed this preclinical study using a well-characterized rat model based on repeated administration of the cytostatic drug vincristine (VCR, 0.2 mg/kg intravenously via the tail vein once/week for 4 times)...
June 13, 2018: Experimental Neurology
https://www.readbyqxmd.com/read/29908100/exosomes-in-cancer-development-and-clinical-applications
#11
REVIEW
Yu-Ling Tai, Ko-Chien Chen, Jer-Tsong Hsieh, Tang-Long Shen
Exosomes participate in cancer progression and metastasis by transferring bioactive molecules between cancer and varied cells in the local and distant microenvironments. Such intercellular cross-talks result in changes in multiple cellular and biological functions in recipient cells. Several hallmarks of cancer have been reportedly impacted by this exosome-mediated cell-to-cell communication, including modulating immune responses, re-programming stromal cells, re-modeling the architecture of extracellular matrix, or even endowing cancer cells with characteristics of drug resistance...
June 16, 2018: Cancer Science
https://www.readbyqxmd.com/read/29908029/fc%C3%AE-ri-fc%C3%AE-rii-and-il-10-as-predictive-biomarkers-for-post-therapeutic-cicatrization-time-in-monocytes-from-cutaneous-leishmaniasis-patients
#12
Marina L Rodrigues-Alves, Otoni A O Melo-Júnior, Jordana G Coelho-Dos-Reis, Marcelo A Pascoal-Xavier, Heloisa Alves-Costa, Clovis A Reis, Walderez O Dutra, Rosiana E Silva, Maria C R Senna, Andreia C Faria, Nayara I Medeiros, Juliana A S Gomes, Denise Silveira-Lemos, Olindo A Martins-Filho, Andréa Teixeira-Carvalho, Matheus F Costa-Silva, Rodolfo C Giunchetti, Vanessa Peruhype-Magalhães
Cutaneous Leishmaniasis (CL) treatment is based on therapy with Glucantime® , yet there are few laboratory methods to monitor its success. In this study, ex vivo and in vitro evaluations of peripheral blood monocytes were performed in a longitudinal study to characterize the impact of Glucantime® on overall phenotypic/functional features of these cells from CL patients to identify predictive biomarkers for post-therapeutic monitoring by flow cytometry. The ex vivo evaluation from CL patients demonstrated a modulatory profile before treatment, with a decrease in TLR-2, FcγRII, HLA-DR, CD86, IFN-γR, TNF, IL-12, NO, and an increase in FcγRIII and IL-10R...
June 16, 2018: Parasite Immunology
https://www.readbyqxmd.com/read/29907975/metabolite-assignment-of-ultra-filtered-synovial-fluid-extracted-from-knee-joints-of-reactive-arthritis-patients-using-high-resolution-nmr-spectroscopy
#13
Durgesh Dubey, Smriti Chaurasia, Anupam Guleria, Sandeep Kumar, Dinesh Raj Modi, Ramnath Misra, Dinesh Kumar
Currently, there are no reliable clinical biomarkers available that can aid early differential diagnosis of reactive arthritis (ReA) from other inflammatory joint diseases. Metabolic profiling of synovial fluid (SF) -obtained from joints affected in ReA- holds great promise in this regard and will further aid monitoring treatment and improving our understanding about disease mechanism. As a first step in this direction, we report here the metabolite specific assignment of 1 H and 13 C resonances detected in the NMR spectra of SF samples extracted from human patients with established ReA...
June 15, 2018: Magnetic Resonance in Chemistry: MRC
https://www.readbyqxmd.com/read/29907935/circulating-mir-215-5p-and-mir-642a-5p-as-potential-biomarker-for-diagnosis-of-osteosarcoma-in-mexican-population
#14
Lucero Monterde-Cruz, Eric G Ramírez-Salazar, Genaro Rico-Martínez, Luis M Linares-González, Roberto Guzmán-González, Ernesto Delgado-Cedillo, Eréndira Estrada-Villaseñor, Margarita Valdés-Flores, Rafael Velázquez-Cruz, Alberto Hidalgo-Bravo
Osteosarcoma is the most common malignant bone neoplasia affecting individuals in the second decade of life. The survival rate has not been improved during the last 25 years, in part because of the lack of specific markers. The microRNAs have been identified as important regulators of gene expression, experimental evidence suggests these molecules as key players in cancer development and progression. To identify miRNAs differentially expressed in serum from patients with osteosarcoma compared to healthy donors in Mexican population...
June 15, 2018: Human Cell
https://www.readbyqxmd.com/read/29907864/bladder-cancer-recurrence-surveillance-by-urine-metabolomics-analysis
#15
A Loras, M Trassierra, D Sanjuan-Herráez, M C Martínez-Bisbal, J V Castell, G Quintás, J L Ruiz-Cerdá
Non Muscle Invasive Bladder Cancer (NMIBC) is among the most frequent malignant cancers worldwide. NMIBC is treated by transurethral resection of the bladder tumor (TURBT) and intravesical therapies, and has the highest recurrence rate among solid tumors. It requires a lifelong patient monitoring based on repeated cystoscopy and urinary cytology, both having drawbacks that include lack of sensitivity and specificity, invasiveness and care costs. We conducted an investigative clinical study to examine changes in the urinary metabolome of NMBIC patients before and after TURBT, as well during the subsequent surveillance period...
June 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29907846/greater-blood-volume-and-hb-mass-in-obese-women-quantified-by-the-carbon-monoxide-rebreathing-method-affects-interpretation-of-iron-biomarkers-and-iron-requirements
#16
Ana C Cepeda-Lopez, Michael B Zimmermann, Sophia Wussler, Alida Melse-Boonstra, Nicole Naef, Sandro Manuel Mueller, Marco Toigo, Isabelle Herter-Aeberli
BACKGROUND/OBJECTIVE: Iron deficiency (ID) is common in overweight and obese individuals (OW/OB) but the mechanism is uncertain. Greater blood volume (BV) in OW/OB may increase hemoglobin (Hb) mass and iron requirements, and confound iron biomarkers by hemodilution. Quantification of BV/PV changes in OW/OB is challenging and a formula to estimate BV/PV based on anthropometric indices would be valuable. In normal weight (NW) and OW/OB women, we aimed at: (1) measure BV and assess whether differences in BV affect concentrations and total circulating mass of Hb and iron biomarkers; (2) develop an algorithm describing BV in OW/OB...
June 15, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29907817/serum-proteomic-profiling-to-identify-biomarkers-of-premature-carotid-atherosclerosis
#17
Santosh D Bhosale, Robert Moulder, Mikko S Venäläinen, Juhani S Koskinen, Niina Pitkänen, Markus T Juonala, Mika A P Kähönen, Terho J Lehtimäki, Jorma S A Viikari, Laura L Elo, David R Goodlett, Riitta Lahesmaa, Olli T Raitakari
To evaluate the presence of serum protein biomarkers associated with the early phases of formation of carotid atherosclerotic plaques, label-free quantitative proteomics analyses were made for serum samples collected as part of The Cardiovascular Risk in Young Finns Study. Samples from subjects who had an asymptomatic carotid artery plaque detected by ultrasound examination (N = 43, Age = 30-45 years) were compared with plaque free controls (N = 43) (matched for age, sex, body weight and systolic blood pressure)...
June 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29907771/mir-30-disrupts-senescence-and-promotes-cancer-by-targeting-both-p16-ink4a-and-dna-damage-pathways
#18
Weijun Su, Lixin Hong, Xin Xu, Shan Huang, Denise Herpai, Lisheng Li, Yingxi Xu, Lan Truong, Wen-Yuan Hu, Xiaohua Wu, Changchun Xiao, Wei Zhang, Jiahuai Han, Waldemar Debinski, Rong Xiang, Peiqing Sun
miR-30 is a microRNA frequently overexpressed in human cancers. However, the biological consequence of miR-30 overexpression in cancer has been unclear. In a genetic screen, miR-30 was found to abrogate oncogenic-induced senescence, a key tumor-suppressing mechanism that involves DNA damage responses, activation of p53 and induction of p16INK4A . In cells and mouse models, miR-30 disrupts senescence and promotes cancer by suppressing 2 targets, CHD7 and TNRC6A. We show that while CHD7 is a transcriptional coactivator essential for induction of p16INK4A in senescent cells, TNRC6A, a miRNA machinery component, is required for expression and functionality of DNA damage response RNAs (DDRNAs) that mediate DNA damage responses and p53 activation by orchestrating histone modifications, chromatin remodeling and recruitment of DNA damage factors at damaged sites...
June 15, 2018: Oncogene
https://www.readbyqxmd.com/read/29907753/validation-of-mirna-prognostic-power-in-hepatocellular-carcinoma-using-expression-data-of-independent-datasets
#19
Ádám Nagy, András Lánczky, Otília Menyhárt, Balázs Győrffy
Multiple studies suggested using different miRNAs as biomarkers for prognosis of hepatocellular carcinoma (HCC). We aimed to assemble a miRNA expression database from independent datasets to enable an independent validation of previously published prognostic biomarkers of HCC. A miRNA expression database was established by searching the TCGA (RNA-seq) and GEO (microarray) repositories to identify miRNA datasets with available expression and clinical data. A PubMed search was performed to identify prognostic miRNAs for HCC...
June 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29907738/epigenetic-regulation-of-the-oxytocin-receptor-is-associated-with-neural-response-during-selective-social-attention
#20
Meghan H Puglia, Jessica J Connelly, James P Morris
Aberrant attentional biases to social stimuli have been implicated in a number of disorders including autism and social anxiety disorder. Oxytocin, a naturally-occurring mammalian hormone and neuromodulator involved in regulating social behavior, has been proposed to impact basic biological systems that facilitate the detection of and orientation to social information. Here, we investigate a role for naturally-occurring variability in the endogenous oxytocinergic system in regulating neural response during attention to social information...
June 15, 2018: Translational Psychiatry
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