keyword
MENU ▼
Read by QxMD icon Read
search

Marker

keyword
https://www.readbyqxmd.com/read/29684860/polyphenol-rich-extract-of-ocimum-gratissimum-leaves-ameliorates-colitis-via-attenuating-colonic-mucosa-injury-and-regulating-pro-inflammatory-cytokines-production-and-oxidative-stress
#1
Quadri K Alabi, Rufus O Akomolafe, Joseph G Omole, Modinat A Adefisayo, Olaofe L Ogundipe, Ayodeji Aturamu, Joseph O Sanya
Colitis is a chronic inflammation and ulcer on the inner lining of the large intestine. For many centuries Ocimum gratissimum (OG) leaves have been used in folk medicine in Nigeria to treat inflammatory bowel diseases, however, to date, the anti-colitis effects of OG have not been scientifically proven. In this study we investigated the effects of polyphenol rich extract of Ocimum gratissimum (PREOG) leaf on colonic mucosa injury in colitis, its mechanisms, initial administration time and dosage. Dextran sodium sulfate (DSS)-induced rat colitis models was used...
April 20, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29684856/cerium-oxide-nanoparticles-in-pursuit-of-liver-protection-against-doxorubicin-induced-injury-in-rats
#2
Heba G Ibrahim, Noha Attia, Fatma El Zahraa A Hashem, Moushira A R El Heneidy
Doxorubicin (DOX) is considered as a backbone in several chemotherapeutic regimens. Nevertheless, the reported systemic toxicity usually hampers its broad application. Interestingly, Cerium oxide nanoparticles (CeONPs) depicted promising regenerative antioxidant and hepatoprotective potentials against multiple oxidative stress-induced pathologies. Thus, the aim of the present study was to determine either CeONPs would display hepatoprotective properties once concomitantly administered with DOX or not. Male Sprague Dawley rats were divided into four groups (n = 10) in a two weeks study: Control (received saline, IP injection thrice a week), CeO (0...
April 20, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29684852/polysaccharide-from-rhizopus-nigricans-inhibits-the-invasion-and-metastasis-of-colorectal-cancer
#3
Zhidan Yu, Qingjie Sun, Jing Liu, Xiujuan Zhang, Ge Song, Guodong Wang, Pengying Zhang, Kaoshan Chen
Polysaccharide (EPS1-1) extracted from fermentation liquor of Rhizopus nigricans possesses antitumor and immune-enhancing activities. The study was the first to investigate the anti-metastasis effects of EPS1-1 in vitro and in vivo. Results suggested that EPS1-1 dose-dependently suppressed the migration, invasion and adhesion abilities of CT26 cells. Furthermore, EPS1-1 dramatically inhibited the enzyme activity and expression levels of matrix metalloproteinases (MMPs) in CT26 cells, as well as the tube formation of HUVECs...
April 20, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29684825/exposure-to-polybrominated-diphenyl-ethers-and-phthalates-in-healthy-men-living-in-the-greater-montreal-area-a-study-of-hormonal-balance-and-semen-quality
#4
Océane Albert, Jonathan Y Huang, Katarina Aleksa, Barbara F Hales, Cynthia G Goodyer, Bernard Robaire, Jonathan Chevrier, Peter Chan
Studies investigating the associations between exposure of young men to polybrominated diphenyl ethers (PBDEs) or phthalates and hormone levels or semen quality have produced inconsistent results. Our goal was to investigate the association of exposure to PBDEs or phthalate metabolites with changes in markers of thyroid (TSH, free T3 and free T4) and reproductive function (sperm concentrations, motility, and quality; serum LH and testosterone) in 153 healthy young men from the greater Montreal area. Using covariate-adjusted models, we found that each 10-fold increase in BDE-47 was associated with lower TSH levels (-17...
April 20, 2018: Environment International
https://www.readbyqxmd.com/read/29684809/simultaneous-effects-of-igf1-and-fadrozole-on-parthenogenesis-and-pluripotency-markers-in-chicken-embryo
#5
Zohreh Hajihoseini, Shahin Eghbalsaied
So far, a synergistic effect was detected between insulin-like growth factor-I (IGF1) and anti-aromatase for sex reversal and pre-/post-natal growth of fertilized chicken embryo. Here, we hypothesized whether the growth and sexual female-to-male reversal effects of IGF1 and an anti-aromatase, Fadrozole, could improve the development of unfertilized, parthenogenetic chicken embryos. Simultaneous administration of IGF1 and Fadrozole increased the percentage of grade A embryos from 1.7% (no injection group) to 70...
April 13, 2018: Theriogenology
https://www.readbyqxmd.com/read/29684808/tissue-interactions-and-estrogenic-response-during-human-female-fetal-reproductive-tract-development
#6
Gerald R Cunha, Takeshi Kurita, Mei Cao, Joel Shen, Paul S Cooke, Stanley J Robboy, Laurence S Baskin
The role of tissue interactions was explored to determine whether epithelial differentiation within the developing human reproductive tract is induced and specified by mesenchyme in tissue recombinants composed of mouse vaginal mesenchyme + human uterine tubal epithelium (mVgM+hTubE). The tissue recombinants were grown in DES-treated ovariectomized athymic mice. After 2-4 weeks of in vivo growth, several vaginal specific features were expressed in the human tubal epithelium. The mesenchyme-induced effects included morphological change as well as expression of several immunohistochemical markers...
April 18, 2018: Differentiation; Research in Biological Diversity
https://www.readbyqxmd.com/read/29684776/cyclic-uniaxial-compression-of-human-stem-cells-seeded-on-a-bone-biomimetic-nanocomposite-decreases-anti-osteogenic-commitment-evoked-by-shear-stress
#7
Walter Baumgartner, Isabelle Schneider, Samuel C Hess, Wendelin J Stark, Sonja Märsmann, Marzia Brunelli, Maurizio Calcagni, Paolo Cinelli, Johanna Buschmann
OBJECTIVE: Chemical supplementation of culture media to induce differentiation of adult stem cells seeded on a scaffold may mask other differentiation triggers such as scaffold stiffness, chemical composition or mechanical stimulation. However, stem cells can be differentiated towards osteoblasts without any supplementation given an appropriate osteogenic scaffold and an adequate mechanical stimulation. MATERIALS AND METHODS: Electrospun meshes of poly-lactic-co-glycolic acid and amorphous calcium phosphate nanoparticles (PLGA/aCaP) in a weight ratio of 60:40 were seeded with human adipose-derived stem cells (ASCs) and cultured in DMEM...
April 5, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29684718/bio-synthesis-and-antimicrobial-activity-of-silver-nanoparticles-using-anaerobically-digested-parthenium-slurry
#8
Alaknanda J Adur, N Nandini, K Shilpashree Mayachar, R Ramya, N Srinatha
Silver nanoparticles were prepared through eco-friendly, cost effective, bio-mediated technique using anaerobically digested Parthenium hysterophorous digested slurry (PDS) for the first time. The synthesized nanoparticles were characterized through different techniques such as UV-Vis spectrophotometer for optical properties; X-ray diffractometer (XRD), high resolution transmission electron spectroscopy (HR-TEM) and Fourier Transform Infra Red (FTIR) Spectroscopy for structural property investigations. It was observed that the prepared silver nanoparticles were crystallized in face centered cubic crystal structure with an average particle size of 19 nm as confirmed from XRD...
April 16, 2018: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29684705/dual-tail-arylsulfone-based-benzenesulfonamides-differently-match-the-hydrophobic-and-hydrophilic-halves-of-human-carbonic-anhydrases-active-sites-selective-inhibitors-for-the-tumor-associated-hca-ix-isoform
#9
Hany S Ibrahim, Heba Abdelrasheed Allam, Walaa R Mahmoud, Alessandro Bonardi, Alessio Nocentini, Paola Gratteri, Eslam S Ibrahim, Hatem A Abdel-Aziz, Claudiu T Supuran
The synthesis and characterization of two new sets of arylsulfonehydrazone benzenesulfonamides (4a-4i with phenyl tail and 4j-4q with tolyl tail) are reported. The compounds were designed according to a dual-tails approach to modulate the interactions of the ligands portions at the outer rim of both hydrophobic and hydrophilic active site halves of human isoforms of carbonic anhydrase (CA, EC 4.2.1.1). The synthesized sulfonamides were evaluated in vitro for their inhibitory activity against the following human (h) isoforms, hCA I, II, IV and IX...
April 10, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29684687/arsenic-trioxide-inhibits-proliferation-and-induced-apoptosis-of-leukemia-stem-cells-with-drug-resistance
#10
Chunxia Liu, Hulai Wei, Xiaojian Yao, Bei Liu, Yaming Xi, Li Zhao
Acute myeloid leukemia (AML) patients show high relapse rates and some develop conventional chemotherapy resistance. Leukemia Stem Cells (LSCs) are the main player for AML relapses and drug resistance. K562/ADM cell, a leukemia resistant cell subtype, was used as leukemia multidrug resistant model to explore drug resistance of leukemia cells. We found that CD34+ CD38- , CD34+ CD38- CD123+ , cell surface markers of LSCs were significantly high expressed in K562/ADM cell, not in K562 cell with less drug resistance; compared with LSCs from K562, multidrug resistance protein P-gp and BCRP expression were significantly higher in K562/ADM cell...
March 2, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29684677/human-stem-cell-based-corneal-tissue-mimicking-structures-using-laser-assisted-3d-bioprinting-and-functional-bioinks
#11
Anni Sorkio, Lothar Koch, Laura Koivusalo, Andrea Deiwick, Susanna Miettinen, Boris Chichkov, Heli Skottman
There is a high demand for developing methods to produce more native-like 3D corneal structures. In the present study, we produced 3D cornea-mimicking tissues using human stem cells and laser-assisted bioprinting (LaBP). Human embryonic stem cell derived limbal epithelial stem cells (hESC-LESC) were used as a cell source for printing epithelium-mimicking structures, whereas human adipose tissue derived stem cells (hASCs) were used for constructing layered stroma-mimicking structures. The development and optimization of functional bioinks was a crucial step towards successful bioprinting of 3D corneal structures...
April 16, 2018: Biomaterials
https://www.readbyqxmd.com/read/29684670/evaluation-of-the-bisap-scoring-system-in-prognostication-of-acute-pancreatitis-a-prospective-observational-study
#12
Sumitra Hagjer, Nitesh Kumar
INTRODUCTION: Severe acute pancreatitis has a high mortality and its early identification is important for management and risk stratification. The bedside index for severity in acute pancreatitis (BISAP) is a simple scoring system done at admission which predicts the severity of pancreatitis. Procalcitonin is an inflammatory marker which is raised very early and helps in early prediction of the severity of disease. This study aims to evaluate the BISAP score and Procalcitonin in prognostication of acute pancreatitis...
April 20, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29684628/inflammatory-markers-and-their-possible-effects-on-cognitive-function-in-women-with-posttraumatic-stress-disorder
#13
Risa Imai, Hiroaki Hori, Mariko Itoh, Mingming Lin, Madoka Niwa, Keiko Ino, Sei Ogawa, Makiko Ishida, Atsushi Sekiguchi, Mie Matsui, Hiroshi Kunugi, Tatsuo Akechi, Toshiko Kamo, Yoshiharu Kim
Posttraumatic stress disorder (PTSD) has been associated with increased inflammation, albeit with some controversy. Another key feature of PTSD is compromised function in wide-ranging cognitive domains. Increased peripheral inflammation can contribute to cognitive dysfunction, although this relationship has not been studied in patients with PTSD. Here, we examined blood inflammatory markers in adult patients with PTSD compared to healthy controls taking account of potentially confounding effects of childhood maltreatment and comorbid major depressive disorder (MDD), and explored the association between inflammation and cognition...
April 13, 2018: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/29684598/extreme-halophilic-archaea-derive-from-two-distinct-methanogen-class-ii-lineages
#14
Monique Aouad, Najwa Taib, Anne Oudart, Michel Lecocq, Manolo Gouy, Céline Brochier-Armanet
Phylogenetic analyses of conserved core genes have disentangled most of the ancient relationships in Archaea. However, some groups remain debated, like the DPANN, a deep-branching super-phylum composed of nanosized archaea with reduced genomes. Among these, the Nanohaloarchaea require high-salt concentrations for growth. Their discovery in 2012 was significant because they represent, together with Halobacteria (a Class belonging to Euryarchaeota), the only two described lineages of extreme halophilic archaea...
April 20, 2018: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/29684597/comparative-chloroplast-genomics-between-the-invasive-weed-mikania-micrantha-and-its-indigenous-congener-mikania-cordata-structure-variation-identification-of-highly-divergent-regions-divergence-time-estimation-and-phylogenetic-analysis
#15
Yingjuan Su, Lu Huang, Zhen Wang, Ting Wang
Mikania micrantha and Mikania cordata are the only two species in genus Mikania (Asteraceae) in China. They share very similar morphological and life-history characteristics but occupy quite different habitats. Most importantly, they generate totally different ecological consequences. While M. micrantha has become an exotic invasive weed, M. cordata exists as an indigenous species with no harmful effects on native plants or habitats. As a continuous study of our previously reported M. micrantha chloroplast (cp) genome, in this study we have further sequenced the M...
April 20, 2018: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/29684593/renal-function-n-terminal-pro-b-type-natriuretic-peptide-propeptide-big-endothelin-and-patients-with-heart-failure-and-preserved-ejection-fraction
#16
Ingrid Gergei, Bernhard K Krämer, Hubert Scharnagl, Tatjana Stojakovic, Winfried März
Renal dysfunction may limit the clinical application of NT-proBNP in the diagnosis of heart failure. In general practice, where echocardiography is not readily available, a biomarker for the diagnosis of a heart failure with preserved ejection fraction (HFpEF) would be useful. Since cardiac diseases frequently coincide with renal disease, there is a high need of valid risk stratification methods in patients affected with both. We therefore examined NT-proBNP and another biomarker, Big-Endothelin-1, as a marker of HFpEF in patients with CKD...
April 20, 2018: Peptides
https://www.readbyqxmd.com/read/29684590/a-synthetic-snake-venom-based-tripeptide-glu-val-trp-protects-pc12-cells-from-mpp-toxicity-by-activating-the-ngf-signaling-pathway
#17
Carolina P Bernardes, Neife A G Santos, Flavia M Sisti, Rafaela Scalco Ferreira, Norival A Santos-Filho, Adélia C O Cintra, Eduardo M Cilli, Suely V Sampaio, Antonio C Santos
Venom small peptides that target neurotrophin receptors might be beneficial in neurodegeneration, including Parkinsońs disease (PD). Their small size, ease of synthesis, structural stability and target selectivity make them important tools to overcome the limitations of endogenous neurotrophins as therapeutic agents. Additionally, they might be optimized to improve resistance to enzymatic degradation, bioavailability, potency and, mainly, lipophilicity, important to cross the blood brain barrier (BBB). Here, we evaluated the neuroprotective effects and mechanisms of the synthetic snake-venom-based peptide p-BTX-I (Glu-Val-Trp) in PC12 cells treated with MPP+ (1-methyl-4-phenylpyridinium), a dopaminergic neurotoxin that induces Parkinsonism in vivo...
April 20, 2018: Peptides
https://www.readbyqxmd.com/read/29684587/trpm7-controls-mesenchymal-features-of-breast-cancer-cells-by-tensional-regulation-of-sox4
#18
Arthur J Kuipers, Jeroen Middelbeek, Kirsten Vrenken, Carlos Pérez-González, Geert Poelmans, Jeffrey Klarenbeek, Kees Jalink, Xavier Trepat, Frank N van Leeuwen
Mechanically induced signaling pathways are important drivers of tumor progression. However, if and how mechanical signals affect metastasis or therapy response remains poorly understood. We previously found that the channel-kinase TRPM7, a regulator of cellular tension implicated in mechano-sensory processes, is required for breast cancer metastasis in vitro and in vivo. Here, we show that TRPM7 contributes to maintaining a mesenchymal phenotype in breast cancer cells by tensional regulation of the EMT transcription factor SOX4...
April 20, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29684527/co-delivery-of-docetaxel-and-gemcitabine-using-pegylated-self-assembled-stealth-nanoparticles-for-improved-breast-cancer-therapy
#19
Varun Kushwah, Sameer S Katiyar, Ashish Kumar Agrawal, Ramesh C Gupta, Sanyog Jain
The present report deals with conjugation of dual drug; docetaxel (DTX) and gemcitabine (GEM) with linker poly-ethylene-glycol (PEG) to develop amphiphilic molecule having self-assembled property. The synthesized conjugate (DTX-PEG-GEM) demonstrated critical micelle concentration (CMC) in the range of 5-10μg/ml which self-assembled to form NPs with size 124.2±5.7. Remarkably higher coumarin-6 (C-6) fluorescence signals observed in case of C-6 loaded NPs, suggested enhanced cellular uptake via clathrin mediated endocytosis...
April 20, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29684490/phosphorylated-nucleolar-tau-protein-is-related-to-the-neuronal-in-vitro-differentiation
#20
Concetta Federico, Laura Gil, Francesca Bruno, Agata Grazia D'Amico, Velia D'Agata, Salvatore Saccone
Tau is a multifunctional protein, originally identified as a cytoplasmic protein associated with microtubules. It is codified by the MAPT gene, and the alternative splicing, in the neuronal cells, results in six different isoforms. Tau was subsequently observed in the cell nucleus, where its function is not yet clearly understood. Here, we studied the MAPT gene and the cellular localization of the AT8 and Tau-1 epitopes of Tau protein, in the SK-N-BE cell line, which differentiates in neuronal-like cells after retinoic acid treatment...
April 20, 2018: Gene
keyword
keyword
19305
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"