keyword
MENU ▼
Read by QxMD icon Read
search

Artificial cell

keyword
https://www.readbyqxmd.com/read/28738168/role-of-age-and-injury-mechanism-in-cervical-spine-injury-tolerance-under-head-contact-loading
#1
Narayan Yoganandan, Sajal Chirvi, Liming Voo, Frank A Pintar, Anjishnu Banerjee
OBJECTIVE: To determine the influence of age on cervical spine tolerance to injury from head contact loading using survival analysis. METHODS: This study analyzed data from previously conducted experiments using Post Mortem Human Subject specimens (PMHS). Group A tests used the upright intact head-cervical column experimental model. The inferior end of the specimen was fixed, head was balanced by a mechanical system, and natural lordosis was removed. Specimens were placed on a testing device via a load cell...
July 24, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28736695/comparative-evaluation-of-wastewater-treatment-microbial-fuel-cells-in-terms-of-organics-removal-waste-sludge-production-and-electricity-generation
#2
Yusuke Asai, Morio Miyahara, Atsushi Kouzuma, Kazuya Watanabe
Microbial fuel cells (MFCs) are devices that exploit living microbes for electricity generation coupled to organics degradation. MFCs are expected to be applied to energy-saving wastewater treatment (WWT) as alternatives to activated-sludge reactors (ASRs). Although extensive laboratory studies have been performed to develop technologies for WWT-MFCs, limited information is available for comparative evaluation of MFCs and ASRs in terms of organics removal and waste-sludge production. In the present study, laboratory WWT experiments were performed using cassette-electrode MFCs and ASRs that were continuously supplied either with artificial domestic wastewater (ADW) containing starch and peptone or with artificial industrial wastewater (AIW) containing methanol as the major organic matter...
2017: Bioresources and Bioprocessing
https://www.readbyqxmd.com/read/28734789/weathered-mc252-crude-oil-induced-anemia-and-abnormal-erythroid-morphology-in-double-crested-cormorants-phalacrocorax-auritus-with-light-microscopic-and-ultrastructural-description-of-heinz-bodies
#3
Kendal E Harr, Fred L Cunningham, Chris A Pritsos, Karen L Pritsos, Thivanka Muthumalage, Brian S Dorr, Katherine E Horak, Katie C Hanson-Dorr, Karen M Dean, Dave Cacela, Andrew K McFadden, Jane E Link, Katherine A Healy, Pete Tuttle, Steven J Bursian
Injury assessment of birds following the Deepwater Horizon (DWH) oil spill in 2010 was part of the Natural Resource Damage Assessment. One reported effect was hemolytic anemia with the presence of Heinz bodies (HB) in birds, however, the role of route and magnitude of exposure to oil is unknown. The purpose of the present study was to determine if double-crested cormorants (Phalacocorax auritis; DCCO) exposed orally and dermally to artificially weathered crude oil would develop hemolytic anemia including HB and reticulocytosis...
July 19, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28732213/comparison-of-blood-collection-tubes-from-three-different-manufacturers-for-the-collection-of-cell-free-dna-for-liquid-biopsy-mutation-testing
#4
Christina Alidousty, Danielle Brandes, Carina Heydt, Svenja Wagener, Maike Wittersheim, Stephan Christian Schäfer, Barbara Holz, Sabine Merkelbach-Bruse, Reinhard Büttner, Jana Fassunke, Anne Maria Schultheis
The improvement in sensitive techniques has allowed the detection of tumor-specific aberrations in circulating tumor (ct) DNA. Amplification-refractory mutation system PCR has been used for the analysis of ctDNA to detect resistance-causing mutations in the epidermal growth factor receptor gene (eg, EGFR T790M) in lung cancer patients. So far, Streck tubes have been widely used as standard blood collection tubes. Here, we compared blood collection tubes manufactured by Streck with tubes from Roche and Qiagen regarding their utility in stabilizing ctDNA in plasma samples...
July 18, 2017: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/28731703/natural-poly-and-oligosaccharides-as-novel-delivery-systems-for-plant-protection-compounds
#5
Olga Selyutina, Irina Apanasenko, Salavat Khalikov, Nikolay E Polyakov
To increase the bioavailability of plant protection products we have applied new approach based on non-covalent association with natural water soluble polysaccharides and oligosaccharides as delivery systems (DSs). The mechanochemical technique has been applied to prepare the solid state nano-dispersed compositions of antidote 1,8-naphthalic anhydride (NA) with arabinogalactan, sodium salt of carboxymethylcellulose, and glycyrrhizin as DSs. The effect of DSs on the solubility and the penetration of NA into the seeds of barley and wheat has been investigated by various physicochemical techniques...
July 21, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28729695/the-epstein-barr-virus-brrf1-gene-is-dispensable-for-viral-replication-in-hek293-cells-and-transformation
#6
Masahiro Yoshida, Takahiro Watanabe, Yohei Narita, Yoshitaka Sato, Fumi Goshima, Hiroshi Kimura, Takayuki Murata
The Epstein-Barr virus (EBV) is a gamma-herpesvirus associated with several malignancies. It establishes a latent infection in B lymphocytes and is occasionally reactivated to enter the lytic cycle. Here we examined the role of the EBV gene BRRF1, which is expressed in the lytic state. We first confirmed, using a DNA polymerase inhibitor, that the BRRF1 gene is expressed with early kinetics. A BRRF1-deficient recombinant virus was constructed using a bacterial artificial chromosome system. No obvious differences were observed between the wild-type, BRRF1-deficient mutant and the revertant virus in HEK293 cells in terms of viral lytic protein expression, viral DNA synthesis, progeny production, pre-latent abortive lytic gene expression and transformation of primary B cells...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28729689/metal-nanoclusters-with-synergistically-engineered-optical-and-buffering-activity-of-intracellular-reactive-oxygen-species-by-compositional-and-supramolecular-design
#7
B Santiago-Gonzalez, A Monguzzi, M Caputo, C Villa, M Prato, C Santambrogio, Y Torrente, F Meinardi, S Brovelli
Metal nanoclusters featuring tunable luminescence and high biocompatibility are receiving attention as fluorescent markers for cellular imaging. The recently discovered ability of gold clusters to scavenge cytotoxic reactive oxygen species (ROS) from the intracellular environment extends their applicability to biomedical theranostics and provides a novel platform for realizing multifunctional luminescent probes with engineered anti-cytotoxic activity for applications in bio-diagnostics and conceivably cellular therapy...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28728862/seminal-plasma-proteins-modify-the-distribution-of-sperm-subpopulations-in-cryopreserved-semen-of-rams-with-lesser-fertility
#8
Alba Ledesma, Lucía Zalazar, Estela Fernández-Alegre, Federico Hozbor, Andreina Cesari, Felipe Martínez-Pastor
Any physiological mechanism involved in sperm selection and semen improvement has effects on heterogeneous sperm populations. This is mainly due to the fact that sperm populations within a single ejaculate have considerable heterogeneity for many variables, such as motility which is meaningful in terms of understanding how some sperm cells possess fertility advantages as compared with other cells. In the present research, initially there was a multivariate and clustering analysis used to assess sperm motility data from cryopreserved ram semen to identify subpopulations and compare the distribution of these clusters between rams with lesser and greater fertility...
June 27, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28728303/-enhancing-soft-tissue-reattachment-with-artificial-mesh-in-joint-endoprosthetic-reconstruction-for-bone-tumors
#9
J S Lin, R Chen, W Yan, D D Chen
Objective: To investigate the operative method and clinical application of the BARD(®) Mesh in enhancing joint stability and function of endoprosthetic reconstruction for bone tumors. Methods: From Jan 2013 to Jun 2015, the clinical data of 51 patients aged (44.75±23.18) years underwent wide resection of tumor and endoprosthetic reconstruction using the BARD(®) Mesh were collected. Among them, 27 were male and 24 were female. The surgical treatments received by these patients included 5 shoulder arthroplasties, 12 elbow replacements, 12 hip replacements and 32 knee replacements (including 24 femoral tumors and 8 tibial tumors)...
July 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28728104/design-synthesis-and-evaluation-of-coumarin-pargyline-hybrids-as-novel-dual-inhibitors-of-monoamine-oxidases-and-amyloid-%C3%AE-aggregation-for-the-treatment-of-alzheimer-s-disease
#10
Hua-Li Yang, Pei Cai, Qiao-Hong Liu, Xue-Lian Yang, Fan Li, Jin Wang, Jia-Jia Wu, Xiao-Bing Wang, Ling-Yi Kong
A series of coumarin-pargyline hybrids (4a-x) have been designed, synthesized and evaluated as novel dual inhibitors of Alzheimer's disease (AD). Most of the compounds exhibited a potent ability to inhibit amyloid-β (Aβ) aggregation and monoamine oxidases. In particular, compound 4x exhibited remarkable inhibitory activities against monoamine oxidases (IC50, 0.027 ± 0.004 μM for MAO-B; 3.275 ± 0.040 μM for MAO-A) and Aβ1-42 aggregation (54.0 ± 1.1%, 25 μM). Moreover, compound 4x showed low toxicity according to in vitro cell toxicity test...
July 8, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28726547/three-dimensional-bio-printing-of-hepatic-structures-with-direct-converted-hepatocyte-like-cells
#11
Kyojin Kang, Yohan Kim, Seung Bum Lee, Ji Sook Kim, Sua Park, Wan-Doo Kim, Heung-Mo Yang, Sung-Joo Kim, Jaemin Jeong, Dongho Choi
Three-dimensional (3D) bio-printing technology is a promising new technology in the field of bio-artificial organ generation with regard to overcoming the limitations of organ supply. The cell source for bio-printing is very important. Here, we generated 3D hepatic scaffold with mouse induced hepatocyte-like cells (miHeps), and investigated whether their function was improved after transplantation in vivo. To generate miHeps, mouse embryonic fibroblasts were transformed with pMX retroviruses individually expressing hepatic transcription factors Hnf4a and Foxa3...
July 20, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28725654/stem-cells-from-human-hair-follicles-first-mechanical-isolation-for-immediate-autologous-clinical-use-in-androgenetic-alopecia-and-hair-loss
#12
Pietro Gentile, Maria G Scioli, Alessandra Bielli, Augusto Orlandi, Valerio Cervelli
BACKGROUND: Hair follicles are known to contain a well-characterized niche for adult stem cells: the bulge, which contains epithelial and melanocytic stem cells. Stem cells in the hair bulge, a clearly demarcated structure within the lower permanent portion of hair follicles, can generate the interfollicular epidermis, hair follicle structures, and sebaceous glands. The bulge epithelial stem cells can also reconstitute in an artificial in vivo system to a new hair follicle. METHODS: In this study, we have developed a new method to isolate human adult stem cells by mechanical centrifugation of punch biopsy from human hair follicles without culture condition...
2017: Stem Cell Investigation
https://www.readbyqxmd.com/read/28725241/mir-378-suppresses-the-proliferation-migration-and-invasion-of-colon-cancer-cells-by-inhibiting-sdad1
#13
Mingxi Zeng, Linlin Zhu, Liangping Li, Changming Kang
BACKGROUND: MicroRNAs (miRNAs) play important roles in the growth and metastasis of colon cancer. It is known that one set of miRNAs are dysregulated in colon cancer cells, but the mechanism of their role in cancer development is still largely unknown. Our study focuses on the role of miR-378 in colon cancer cells. METHODS: Human colon cancer tissues and adjacent non-tumor tissues were collected from patients diagnosed in pathological examinations. In addition, human colon cancer cell lines LoVo, CaCo2, SW1116, SW480 and HCT-116, and a normal colonic mucosa cell line NCM460 were included...
2017: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/28725050/carrier-mediated-and-energy-dependent-uptake-and-efflux-of-deoxynivalenol-in-mammalian-cells
#14
Xiaoming Li, Peiqiang Mu, Jikai Wen, Yiqun Deng
Deoxynivalenol (DON) is one of the most abundant mycotoxins and exerts many adverse effects on humans and animals. To date, the transporting mechanism of DON in mammalian cells remains unclear. In this study, the parallel artificial membrane permeability assay (PAMPA), Transwell models and metabolic inhibitors were used to determine the possible transporting mechanisms of DON in Caco-2, MDCK and HepG2 cells. PAMPA and Transwell models showed reduced passive transport and increased intestinal absorption, indicating a carrier-mediated transporting mechanism...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724971/computational-design-of-a-symmetrical-%C3%AE-trefoil-lectin-with-cancer-cell-binding-activity
#15
Daiki Terada, Arnout R D Voet, Hiroki Noguchi, Kenichi Kamata, Mio Ohki, Christine Addy, Yuki Fujii, Daiki Yamamoto, Yasuhiro Ozeki, Jeremy R H Tame, Kam Y J Zhang
Computational protein design has advanced very rapidly over the last decade, but there remain few examples of artificial proteins with direct medical applications. This study describes a new artificial β-trefoil lectin that recognises Burkitt's lymphoma cells, and which was designed with the intention of finding a basis for novel cancer treatments or diagnostics. The new protein, called "Mitsuba", is based on the structure of the natural shellfish lectin MytiLec-1, a member of a small lectin family that uses unique sequence motifs to bind α-D-galactose...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28722325/polymer-mediated-flocculation-of-transient-cho-cultures-as-a-simple-high-throughput-method-to-facilitate-antibody-discovery
#16
Matthew G Schmitt, Yashas Rajendra, Maria D Hougland, Jeffrey S Boyles, Gavin C Barnard
Most biopharmaceutical drugs, especially monoclonal antibodies (mAbs), bispecific antibodies (BsAbs) and Fc-fusion proteins, are expressed using Chinese Hamster Ovary (CHO) cell lines. CHO cells typically yield high product titers and high product quality. Unfortunately, CHO cell lines also generate high molecular weight (HMW) aggregates of the desired product during cell culture along with CHO host cell protein (HCP) and CHO DNA. These immunogenic species, co-purified during Protein A purification, must be removed in a multi-step purification process...
July 19, 2017: Biotechnology Progress
https://www.readbyqxmd.com/read/28722140/erythrocyte-membrane-enveloped-perfluorocarbon-as-nanoscale-artificial-red-blood-cells-to-relieve-tumor-hypoxia-and-enhance-cancer-radiotherapy
#17
Min Gao, Chao Liang, Xuejiao Song, Qian Chen, Qiutong Jin, Chao Wang, Zhuang Liu
Hypoxia, a common feature within many types of solid tumors, is known to be closely associated with limited efficacy for cancer therapies, including radiotherapy (RT) in which oxygen is essential to promote radiation-induced cell damage. Here, an artificial nanoscale red-blood-cell system is designed by encapsulating perfluorocarbon (PFC), a commonly used artificial blood substitute, within biocompatible poly(d,l-lactide-co-glycolide) (PLGA), obtaining PFC@PLGA nanoparticles, which are further coated with a red-blood-cell membrane (RBCM)...
July 19, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28720867/graphene-microfiber-as-a-scaffold-for-regulation-of-neural-stem-cells-differentiation
#18
Weibo Guo, Jichuan Qiu, Jingquan Liu, Hong Liu
We report the cytocompatibility and regulating effects of the nanostructured reduced graphene oxide (rGO) microfibers, which are synthesized through a capillary hydrothermal method, on neural differentiation of neural stem cells (NSCs). Our findings indicate that the flexible, mechanically strong, surface nanoporous, biodegradable, and cytocompatible nanostructured rGO microfibers not only offer a more powerful substrate for NSCs adhesion and proliferation compared with 2D graphene film and tissue cluture plate but also regulate the NSCs differentiation into neurons and form a dense neural network surrounding the microfiber...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28719187/exploring-the-role-of-habitat-on-the-wettability-of-cicada-wings
#19
Junho Oh, Catherine Dana, Sungmin Hong, Jessica K Roman, Kyoo D Jo, Je W Hong, Jonah Nguyen, Donald M Cropek, Marianne Alleyne, Nenad Miljkovic
Evolutionary pressure has pushed the wings of many insect species to develop micro/nanostructures that can significantly affect wettability and enable functionalities such as droplet jumping, self-cleaning, anti-fogging, anti-microbial, and anti-reflectivity. Significant effort is underway to understand the wing surface structure to establish rational design tools for the development of novel engineered materials. Most studies, however, have focused on superhydrophobic wings obtained from a single insect species, in particular, the Psaltoda claripennis cicada...
July 18, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28718529/dna-fragmentation-in-spermatozoa-a-historical-review
#20
REVIEW
A S Rex, J Aagaard, J Fedder
Sperm DNA Fragmentation has been extensively studied for more than a decade. In the 1940s the uniqueness of the spermatozoa protein complex which stabilizes the DNA was discovered. In the fifties and sixties, the association between unstable chromatin structure and subfertility was investigated. In the seventies, the impact of induced DNA damage was investigated. In the 1980s the concept of sperm DNA fragmentation as related to infertility was introduced as well as the first DNA fragmentation test: the Sperm Chromatin Structure Assay (SCSA)...
July 2017: Andrology
keyword
keyword
22775
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"