CN
Search Within
extran
应用筛选条件
关键词:'extran'
显示 31-60 共 119 条结果 关于 "extran" 范围 论文
B A Tomkins et al.
Journal of chromatography. A, 911(1), 85-96 (2001-03-28)
A highly sensitive analytical procedure is described for determining thiodiglycol in groundwater. Samples are initially fortified with 3,3'-thiodipropanol (surrogate), then both species are extracted using sequential solid-phase extraction with both C18 and Ambersorb 572 columns. The C18 column, which removes
B A Leibovitch et al.
Journal of neurogenetics, 10(1), 1-13 (1995-04-01)
We have quantitated the response of D. melanogaster to general anesthetics with a device, the inebriometer, that assays the fly's geotactic and postural behavior. When alleles of several loci that encode or regulate subunits of ion channels were compared with
James E M Lewis
Chemistry (Weinheim an der Bergstrasse, Germany), 27(13), 4454-4460 (2021-01-07)
Although many impressive metallo-supramolecular architectures have been reported, they tend towards high symmetry structures and avoid extraneous functionality to ensure high fidelity in the self-assembly process. This minimalist approach, however, limits the range of accessible structures and thus their potential
Voltage-gated calcium channels provide an alternate route for iron uptake in neuronal cell cultures.
Julie A Gaasch et al.
Neurochemical research, 32(10), 1686-1693 (2007-04-04)
Recent studies suggest that iron enters cardiomyocytes via the L-type voltage-gated calcium channel (VGCC). The neuronal VGCC may also provide iron entry. As with calcium, extraneous iron is associated with the pathology and progression of neurodegenerative diseases such as Parkinson's
Gregory R Waetzig et al.
Scientific reports, 7(1), 14711-14711 (2017-11-09)
The marshy water-saturated soil typical of the sub-Arctic represents a considerable impediment to the construction of roads, thereby greatly hindering human habitation and geological excavation. Muskeg, the native water-laden topsoil characteristic of the North American sub-Arctic, represents a particularly vexing
Rongke Gao et al.
Biosensors & bioelectronics, 72, 230-236 (2015-05-20)
We report the application of a fully automated surface-enhanced Raman scattering (SERS)-based solenoid-embedded microfluidic device to the quantitative and sensitive detection of anthrax biomarker poly-γ-D-glutamic acid (PGA) in solution. Analysis is based on the competitive reaction between PGA and PGA-conjugated
Gholamreza Bahreini et al.
Bioresource technology, 305, 123071-123071 (2020-03-03)
This research showed the interrelated impact of cellulase enzyme, temperature, and SRT on enhancement of primary and rotating belt filter (PS, RBF) sludges fermentation. SRTs of 1, 2, and 4-days were tested at 25 °C and 35 °C. Enzymatic enhancement was examined
Nandita Bose et al.
Protein expression and purification, 25(1), 73-80 (2002-06-20)
Elevated homocysteine as a result of dysfunctional metabolic enzymes is an independent risk factor for arteriosclerosis. Betaine:homocysteine S-methyltransferase (BHMT) (EC 2.1.1.5) is an important enzyme in the pathway of homocysteine metabolism in that it recycles methionine from homocysteine and nonfolate
Ann Olincy et al.
Handbook of experimental pharmacology, (213)(213), 211-232 (2012-10-03)
Nicotine is heavily abused by persons with schizophrenia. Nicotine better enables people with schizophrenia to filter out extraneous auditory stimuli. Nicotine also improves prepulse inhibition when compared to placebo. Nicotine similarly increases the amplitude of patients' duration mismatch negativity. The
Pasi Korkalo et al.
Molecules (Basel, Switzerland), 25(19) (2020-10-01)
This study aims to promote comprehensive utilization of woody biomass by providing a knowledgebase on the utility of aspen bark as a new alternative source for fossil-based chemicals. The research focused on the analysis of clonal variation in: (1) major
Huseyin Tas et al.
PloS one, 10(9), e0136963-e0136963 (2015-09-04)
We describe an optimized system for the easy, effective, and precise modification of the Escherichia coli genome. Genome changes are introduced first through the integration of a 1.3 kbp Landing Pad consisting of a gene conferring resistance to tetracycline (tetA)
Huseyin Tas et al.
PloS one, 10(9), e0136963-e0136963 (2015-09-04)
We describe an optimized system for the easy, effective, and precise modification of the Escherichia coli genome. Genome changes are introduced first through the integration of a 1.3 kbp Landing Pad consisting of a gene conferring resistance to tetracycline (tetA)
Tomomi Kurane et al.
Okajimas folia anatomica Japonica, 96(2), 49-56 (2020-01-07)
Embryo implantation is an immunologically paradoxical event. In humans and rodents, blastocysts adhere to uterine epithelium and then invade into endometrial stroma, while maternal body is protected from extraneous materials by its immune system. Eosinophils, a kind of leucocytes involving
M Zafarullah et al.
Biochimica et biophysica acta, 1049(3), 318-323 (1990-07-30)
Exposure of a trout gonadal fibroblast (RTG-2) cell line to ZnCl2, CdCl2 and CuCl2 resulted in differential levels of accumulation of metallothionein (MT) mRNA. ZnCl2 being the most effective agent induced MT mRNA in 3 h, with 172-fold induction after
Babak Mehrjou et al.
ACS applied materials & interfaces, 11(35), 31605-31614 (2019-08-07)
Many postsurgical complications stem from bacteria colony formation on the surface of implants, but the usage of antibiotic agents may cause antimicrobial resistance. Therefore, there is a strong demand for biocompatible materials with an intrinsic antibacterial resistance not requiring extraneous
Janine C Quijano et al.
PloS one, 5(7), e11619-e11619 (2010-07-28)
The Sno oncogene (Snoo or dSno in Drosophila) is a highly conserved protein and a well-established antagonist of Transforming Growth Factor-beta signaling in overexpression assays. However, analyses of Sno mutants in flies and mice have proven enigmatic in revealing developmental
Constantina N Konidari et al.
Analytical biochemistry, 338(1), 62-70 (2005-02-15)
Peroxidation of lipids produces low-molecular-weight carbonyl compounds, which are reactive with biological nucleophiles. The analysis of these compounds is often difficult. A multicomponent method for the determination of 11 of them in biological samples is reported. The samples are subjected
Kym Lowry et al.
PLoS pathogens, 10(6), e1004191-e1004191 (2014-06-20)
Recombination in enteroviruses provides an evolutionary mechanism for acquiring extensive regions of novel sequence, is suggested to have a role in genotype diversity and is known to have been key to the emergence of novel neuropathogenic variants of poliovirus. Despite
A D Pannifer et al.
The Journal of biological chemistry, 273(17), 10454-10462 (1998-05-30)
Protein-tyrosine phosphatases (PTPs) are signal transduction enzymes that catalyze the dephosphorylation of phosphotyrosine residues via the formation of a transient cysteinyl-phosphate intermediate. The mechanism of hydrolysis of this intermediate has been examined by generating a Gln-262 --> Ala mutant of
D E Sok
Journal of neurochemistry, 70(3), 1167-1174 (1998-03-07)
Zn2+-glycerophosphocholine cholinephosphodiesterase, responsible for the conversion of glycerophosphocholine into glycerol and phosphocholine, was inactivated during incubation with ascorbic acid at 38 degrees C. The inclusion of copper ions or Fe2+ accelerated the ascorbate-induced inactivation, with Cu2+ or Cu+ being much
Andrey V Kajava et al.
Journal of molecular biology, 348(2), 247-252 (2005-04-07)
Human amylin is a 37 amino acid residue peptide hormone whose fibrillogenesis has been correlated with type 2 diabetes. These fibrils are rope-like bundles of several 5nm diameter protofilaments. Here, we propose, as a model for the protofilament, a variant
John D Bartlett et al.
European journal of oral sciences, 119 Suppl 1, 199-205 (2012-01-25)
Mutations of the matrix metalloproteinase 20 (MMP20, enamelysin) gene cause autosomal-recessive amelogenesis imperfecta, and Mmp20 ablated mice also have malformed dental enamel. Here we showed that Mmp20 null mouse secretory-stage ameloblasts maintain a columnar shape and are present as a
R N Gupta et al.
Journal of chromatography. B, Biomedical applications, 658(1), 113-119 (1994-08-05)
A convenient and economical procedure for the extraction of bupivacaine and its major metabolites, desbutylbupivacaine and 4'-hydroxybupivacaine, from serum is described. A 0.25-ml aliquot of 4 micrograms/ml solution of N-pentyl-2,6-pipecoloxylidide used as the internal standard and an equal volume of
Lin Danyu et al.
Experimental cell research, 378(1), 57-65 (2019-02-19)
The transfer of misfolded α-Synuclein (α-Syn) from cell to cell as a prion protein is important in α-Synucleinopathies. Extraneous α-Syn induces apoptosis of dopaminergic neurons by causing mitochondrial dysfunction. However, the mechanism by which α-Syn disrupts the mitochondrial function is
Harold Kochounian et al.
Experimental eye research, 88(6), 1129-1136 (2009-05-20)
Human retinal pigment epithelial (RPE) cells synthesize an extraneous splice isoform of retinal G protein-coupled receptor (RGR). In this study, we analyzed the exon-skipping variant of RGR (RGR-d) that is found in extracellular deposits. RPE-choroid tissue sections were prepared from
Sudheendra N R Rao et al.
Frontiers in molecular neuroscience, 9, 33-33 (2016-07-05)
Following spinal cord injury (SCI), a multitude of intrinsic and extrinsic factors adversely affect the gene programs that govern the expression of regeneration-associated genes (RAGs) and the production of a diversity of extracellular matrix molecules (ECM). Insufficient RAG expression in
Yang Liu et al.
Molecular pharmaceutics, 11(10), 3330-3341 (2014-06-26)
Achieving effective gene therapy for glioma depends on gene delivery systems. The gene delivery system should be able to cross the blood-brain barrier (BBB) and further target glioma at its early stage. Active brain tumor targeted delivery can be achieved
D Hong et al.
British journal of cancer, 101(10), 1798-1804 (2009-10-15)
Recently, transcriptional gene silencing induced by small interfering RNA (siRNA) was found in mammalian and human cells. However, previous studies focused on endogenous genes. In this study, we designed siRNA targeting the promoter of human papillomavirus 16 E6/E7 and transfected
Drahomíra Faktorová et al.
Environmental microbiology, 22(9), 3660-3670 (2020-06-18)
Diplonemids are a group of highly diverse and abundant marine microeukaryotes that belong to the phylum Euglenozoa and form a sister clade to the well-studied, mostly parasitic kinetoplastids. Very little is known about the biology of diplonemids, as few species
Bi-Cheng Yang et al.
The Journal of toxicological sciences, 39(3), 487-497 (2014-05-23)
Crotonaldehyde, a highly toxic α, β-unsaturated aldehyde, is a major component of cigarette smoke and a ubiquitous environmental pollutant. Crotonaldehyde exposure is known to have adverse effects on respiratory health, but the underlying mechanisms remain obscure. As alveolar macrophages display
2/4