Results 41 to 50 of about 240,885 (306)

Morfofisiología del género Rhizophora en la Reserva Natural Isla Juan Venado, Pacífico de Nicaragua

open access: yesLa Calera, 2022
Los manglares son ecosistemas únicos que crecen en aguas salobres en las fronteras de los litorales tropicales; representan un enorme valor científico, ecológico, económico y cultural.
Claudia María Dolmus-Bustillo   +2 more
doaj   +1 more source

ABL kinase‐dependent phosphorylation of SH proteins promotes their direct interaction with CRK family SH2 domains

open access: yesFEBS Letters, EarlyView.
CT10 regulator of kinase (CRK) and CRK‐Like (CRKL) are signaling adaptors driving cell adhesion, motility, differentiation, and proliferation. SH2‐domain containing (SH) proteins are enriched in YXXP motifs which when phosphorylated create preferred binding sites for CRK family SH2 domains.
Phoebe M. Cousens   +8 more
wiley   +1 more source

Development and validation of RP-HPLC and RP-UPLC methods for quantification of erythropoietin formulated with human serum albumin

open access: yesJournal of Pharmaceutical Analysis, 2012
Rapid and sensitive reverse phase high performance liquid chromatography (RP–HPLC) and ultra performance liquid chromatography (UPLC) methods with UV detection for quantification of erythropoietin (EPO) in presence of human serum albumin (HSA) as a ...
Shaligram S. Rane   +3 more
doaj   +1 more source

An on-line solid phase extraction procedure for the routine quantification of urinary methylmalonic acid by liquid chromatography-tandem mass spectrometry [PDF]

open access: yes, 2010
Background: The goal of this study was to develop and to validate an improved isotope-dilution-liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the quantification of methylmalonic acid (MMA) in urine.
Michael Vogeser   +5 more
core   +1 more source

A novel quinazolinone insulin receptor inhibitor and its synergy with an EGFR inhibitor in glucose‐driven glioblastoma

open access: yesMolecular Oncology, EarlyView.
The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka   +9 more
wiley   +1 more source

Fractionation of fecal neutral steroids by high performance liquid chromatography.

open access: yesJournal of Lipid Research, 1985
Fecal neutral steroids were fractionated by high performance liquid chromatography (HPLC) into three major fractions: 5 beta-H, 3-keto steroids; 5 beta-H, 3 beta-hydroxy steroids; and 5 alpha-H and delta 5-3 beta-hydroxy steroids.
E M Jackson   +3 more
doaj   +1 more source

High-performance liquid chromatography (HPLC) assay for ribavirin and comparison of the HPLC assay with radioimmunoassay [PDF]

open access: yesAntimicrobial Agents and Chemotherapy, 1989
The use of high-performance liquid chromatography (HPLC) to measure ribavirin in serum and other biological fluids has been limited by endogenous interfering substances. We report an HPLC procedure based on the extraction of ribavirin from serum, plasma, or cerebrospinal fluid with a boronate affinity gel, which uses a 3-methylcytidine internal ...
G G, Granich   +4 more
openaire   +2 more sources

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

open access: yesFEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn   +4 more
wiley   +1 more source

Quantitative analysis of monosialogangliosides by high-performance liquid chromatography of their perbenzoyl derivatives.

open access: yesJournal of Lipid Research, 1979
A quantitative high-performance liquid chromatographic method for the analysis of monosialogangliosides as their perbenzoyl derivatives has been devised.
E G Bremer, S K Gross, R H McCluer
doaj   +1 more source

Quantification of norisoboldine in Linderae Radix by ultra-performance liquid chromatography and high performance liquid chromatography with UV detection

open access: yes, 2012
Norisoboldine is an alkaloid and has been identified as the major active component in Linderae Radix. A novel method for quantitative analysis of norisoboldine in Linderae Radix using ultra performance liquid chromatography (UPLC) with UV detection was ...
Chou, G.-X.   +4 more
core   +1 more source

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