keyword
MENU ▼
Read by QxMD icon Read
search

trypsin

keyword
https://www.readbyqxmd.com/read/27910014/chromosome-bandings
#1
Huifang Huang, Jiadi Chen
Chromosome banding is an essential technique used in chromosome karyotyping to identify normal and abnormal chromosomes for clinical and research purposes. Giemsa (G)-, reverse (R)-, and centromere (C)-banding are the most commonly dye-based chromosome-banding techniques. G-banding involves the staining of trypsin-treated chromosomes and R-banding involves denaturing in hot acidic saline followed by Giemsa staining. C-banding is specifically used for identifying heterochromatin by denaturing chromosomes in a saturated alkaline solution followed by Giemsa staining...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27907004/in-vitro-variant-surface-antigen-expression-in-plasmodium-falciparum-parasites-from-a-semi-immune-individual-is-not-correlated-with-var-gene-transcription
#2
Ellen Inga Bruske, Sandra Dimonte, Corinna Enderes, Serena Tschan, Matthias Flötenmeyer, Iris Koch, Jürgen Berger, Peter Kremsner, Matthias Frank
Plasmodium falciparum erythrocyte membrane protein 1 (PfEMP1) is considered to be the main variant surface antigen (VSA) of Plasmodium falciparum and is mainly localized on electron-dense knobs in the membrane of the infected erythrocyte. Switches in PfEMP1 expression provide the basis for antigenic variation and are thought to be critical for parasite persistence during chronic infections. Recently, strain transcending anti-PfEMP1 immunity has been shown to develop early in life, challenging the role of PfEMP1 in antigenic variation during chronic infections...
2016: PloS One
https://www.readbyqxmd.com/read/27899286/natural-mitochondrial-proteolysis-confirms-transcription-systematically-exchanging-deleting-nucleotides-peptides-coded-by-expanded-codons
#3
Hervé Seligmann
Protein sequences have higher linguistic complexities than human languages. This indicates undeciphered multilayered, overprinted information/genetic codes. Some superimposed genetic information is revealed by detections of transcripts systematically (a) exchanging nucleotides (nine symmetric, e.g. A<->C, fourteen asymmetric, e.g. A->C->G->A, swinger RNAs) translated according to tri-, tetra- and pentacodons, and (b) deleting mono-, dinucleotides after each trinucleotide (delRNAs). Here analyses of two independent proteomic datasets considering natural proteolysis confirm independently translation of these non-canonical RNAs, also along tetra- and pentacodons, increasing coverage of putative, cryptically encoded proteins...
November 26, 2016: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/27898907/apparent-total-tract-macronutrient-digestibility-fecal-characteristics-and-fecal-fermentative-end-product-concentrations-of-healthy-adult-dogs-fed-bioprocessed-soy-protein
#4
A N Beloshapka, M R C de Godoy, K B Detweiler, M Newcomb, K H Ellegård, G C Fahey, K S Swanson
Animal proteins are commonly used in extruded dog foods. Plant-based proteins have a more consistent nutrient profile than animal sources but may contain antinutritional factors, including trypsin inhibitors and oligosaccharides. Bioprocessed soy protein (SP; HP-300; Hamlet Protein, Inc., Findlay, OH) is a processed soy-based product with low antinutritional factor concentrations and high protein quality. The objective was to evaluate the effects of SP on apparent total tract macronutrient digestibility, fecal characteristics, and fecal fermentative end products...
September 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27897084/multi-spectroscopic-and-molecular-modeling-studies-of-interaction-between-two-different-angiotensin-i-converting-enzyme-inhibitory-peptides-from-gluten-hydrolysate-and-human-serum-albumin
#5
Reza Assaran Darban, Behzad Shareghi, Ahmad Asoodeh, Jamshidkhan Chamani
The present study was carried out to characterize ACE inhibitory peptides which are release from the trypsin hydrolysate of wheat gluten protein. The binding of two inhibitory peptide (P4 and P6) to human serum albumin (HSA) under physiological conditions has been investigated by multi- spectroscopic in combination with molecular modeling techniques. Time-resolved and quenching fluorescence spectroscopies results revealed that the quenching of HSA fluorescence by P4 and P6 in the binary and ternary systems caused HSA-peptides complexes formation...
November 29, 2016: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/27895531/follicular-fluid-biomarkers-for-human-in-vitro-fertilization-outcome-proof-of-principle
#6
Fang Chen, Carl Spiessens, Thomas D'Hooghe, Karen Peeraer, Sebastien Carpentier
BACKGROUND: Human follicular fluid (FF) is a unique biological fluid in which the oocyte develops in vivo, and presents an optimal source for non-invasive biochemical predictors. Oocyte quality directly influences the embryo development and hence, may be used as a predictor of embryo quality. Peptide profiling of FF and its potential use as a biomarker for oocyte quality has never been reported. METHODS: This study screened FF for peptide biomarkers that predict the outcome of in vitro fertilization (IVF)...
2016: Proteome Science
https://www.readbyqxmd.com/read/27894040/plausible-exploitation-of-jatropha-de-oiled-seed-cake-for-lipase-and-phytase-production-and-simultaneous-detoxification-by-candida-parapsilosis-isolated-from-poultry-garbage
#7
Balakrishna Kannoju, Swaruparani Ganapathiwar, Hanumalal Nunavath, Bindu Sunkar, Bhima Bhukya
Jatropha de-oiled seed cake was explored to utilize as a basic nutrient source for Candida parapsilosis, isolated from poultry garbage and selected based on the production of lipase and phytase enzymes under submerged fermentation. At optimized parameters under solid-state fermentation, lipase and phytase activities were recorded as 1056.66±2.92 and 833±2.5U/g of substrate (U/g), respectively. Besides enzyme production, complete elimination of phorbol esters and significant phytate reduction from 6.51±0...
November 19, 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27892892/impact-of-lymphocyte-culture-media-on-the-number-of-metaphases-and-chromosome-band-resolution
#8
Piotr Chomik, Magdalena Gryzinska, Justyna Batkowska, Grazyna Jezewska-Witkowska, Janusz Kocki
A special type of differential staining of chromosomes is replication banding. This staining technique reveals the band pattern characteristic of each homologous pair of chromosomes, which is a reflection of heterogeneous euchromatin structure. Banding enables identification of homologous chromosomes and detection of chromosomal aberrations, both structural and numerical. Slide preparation requires knowledge of many techniques, and the procedure is often different for each laboratory. The aim of the study was to determine the effect of selected media for lymphocyte cultures on the number of metaphases and the band resolution of chromosomes...
October 10, 2016: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/27892586/bovine-serum-albumin-coated-nanoparticles-for-in-vitro-activated-fluorescence
#9
Mary K Burdette, Ragini Jenkins, Yuriy Bandera, Rhonda R Powell, Terri F Bruce, Xi Yang, Yanzhang Wei, Stephen H Foulger
A fluorophore modified nanoparticle was developed that can only fluoresce when a specific environmental parameter interacts with the system. The model system consisted of an azide modified bovine serum albumin (azBSA) that had been covalently attached to an alkyne modified silicon phthalocyanine (alSiPc) derivative through a copper catalyzed azide/alkyne Huisgen cycloaddition (click reaction). The azBSA/alSiPc assembly was then clicked to a ca. 67 nm poly(propargyl acrylate) (PA) nanoparticle (PA/azBSA/alSiPc)...
November 28, 2016: Nanoscale
https://www.readbyqxmd.com/read/27890679/evaluation-of-non-supervised-maldi-mass-spectrometry-imaging-combined-with-microproteomics-for-glioma-grade-iii-classification
#10
Emilie Le Rhun, Marie Duhamel, Maxence Wisztorski, Jean-Pascal Gimeno, Fahed Zairi, Fabienne Escande, Nicolas Reyns, Firas Kobeissy, Claude-Alain Maurage, Michel Salzet, Isabelle Fournier
An integrated diagnosis using molecular features is recommended in the 2016 World Health Organization (WHO) classification. Our aim was to explore non-targeted molecular classification using MALDI mass spectrometry imaging (MALDI MSI) associated to microproteomics in order to classify anaplastic glioma by integration of clinical data. We used fresh-frozen tissue sections to perform MALDI MSI of proteins based on their digestion peptides after in-situ trypsin digestion of the tissue sections and matrix deposition by micro-spraying...
November 23, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27889883/a-randomized-clinical-trial-to-evaluate-efficacy-and-tolerability-of-trypsin-chymotrypsin-as-compared-to-serratiopeptidase-and-trypsin-bromelain-rutoside-in-wound-management
#11
Ajay Chandanwale, Deepak Langade, Dheeraj Sonawane, Piyush Gavai
INTRODUCTION: Systemic enzyme therapy can play an important role in maintaining normal inflammatory processes within the body and thereby helps support and speed up healing. In the course of the anti-inflammatory action, enzymes degrade damaged cells and necrotic material and, through the inactivation of mediators and toxic products, they restrict the edema and pain. METHOD: The study conducted at Grant Medical College, Mumbai, India was a clinical trial comparing the efficacy and tolerability of three oral enzyme treatment groups-oral tablets containing trypsin:chymotrypsin (TC) (Chymoral Forte(®)), serratiopeptidase (S) 5 mg oral tablets, and oral enzyme tablets containing trypsin 48 mg, bromelain 90 mg, and rutoside 100 mg (TBR)-to evaluate their healing potential in surgical wounds after orthopedic surgery...
November 26, 2016: Advances in Therapy
https://www.readbyqxmd.com/read/27886402/analysis-of-paracoccidioides-lutzii-mitochondria-a-proteomic-approach
#12
L Casaletti, P S Lima, L N Lima, C L Borges, S N Báo, A M Bailão, C M A Bailão
The genus Paracoccidioides is composed of thermal dimorphic fungi, causative agents of paracoccidioidomycosis, one of the most frequent systemic mycoses in Latin America. Mitochondria have sophisticated machinery for ATP production, which involves metabolic pathways such as citric acid and glyoxylate cycles, electron transport chain and oxidative phosphorylation. In addition, this organelle performs a variety of functions in the cell, working as an exceptional metabolic signaling center that contributes to cellular stress responses, as autophagy and apoptosis in eukaryotic organisms...
November 25, 2016: Yeast
https://www.readbyqxmd.com/read/27885680/effect-of-high-hydrostatic-pressure-on-the-enzymatic-hydrolysis-of-bovine-serum-albumin
#13
Serena De Maria, Giovanna Ferrari, Paola Maresca
BACKGROUND: The extent of the enzymatic proteolysis mainly depends on the accessibility of the peptide bonds, which stabilize the protein structure. High Hydrostatic Pressure (HHP) process is able to induce, at certain operating conditions, protein displacement, thus suggesting that this technology can be used to modify protein resistance to the enzymatic attack. This work aims at investigating the mechanism of the enzymatic hydrolysis assisted by HHP performed at different processing conditions (pressure level, treatment time)...
November 24, 2016: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/27884435/statistical-comparison-of-excystation-methods-in-cryptosporidium-parvum-oocysts
#14
Radka Pecková, Peter D Stuart, Bohumil Sak, Dana Květoňová, Martin Kváč, Ivona Foitová
Excystation of sporozoites of Cryptosporidium parvum from oocysts is essential for successful in vitro assays. It has also been traditionally used as a measure for oocyst viability and infectivity. Laboratories use various excystation protocols so there is a need to clarify which method is the best. In this study, six different protocols for in vitro excystation of C. parvum oocysts were compared to find the most efficient excystation method (expressed as percentage excystation). Tested protocols differed in chemical pre-incubation steps, excystation media or time of incubation...
October 30, 2016: Veterinary Parasitology
https://www.readbyqxmd.com/read/27884426/preparation-and-application-of-immobilized-enzymatic-reactors-for-consecutive-digestion-with-two-enzymes
#15
Bingbing Wang, Lulu Shangguan, Shulei Wang, Lingyi Zhang, Weibing Zhang, Fan Liu
The bottom up strategy has drawn much attention due to the high accuracy, reliability, and reproducibility in protein identification in which proteins are digested into peptides. However, conventional solution-based digestion and enzymatic reactor with one protease immobilized cannot satisfy high throughput proteolysis of complex samples. Application of consecutive hydrolysis by enzymatic reactor can be a new strategy for high throughput proteolysis of complex samples by adjusting immobilization amount of the enzymes, enzyme ratio, as well as hydrolysis order of two enzymes...
November 18, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/27884074/lc-ms-ms-strategies-for-therapeutic-antibodies-and-investigation-into-the-quantitative-impact-of-antidrug-antibodies
#16
Matthew Ewles, Ranbir Mannu, Chris Fox, Johannes Stanta, Graeme Evans, Lee Goodwin, James Duffy, Len Bell, Sian Estdale, David Firth
AIM: We aimed to establish novel, high-throughput LC-MS/MS strategies for quantification of monoclonal antibodies in human serum and examine the potential impact of antidrug antibodies. METHODOLOGY: We present two strategies using a thermally stable immobilized trypsin. The first strategy uses whole serum digestion and the second introduces Protein G enrichment to improve the selectivity. The impact of anti-trastuzumab antibodies on the methods was tested. CONCLUSION: Whole serum digestion has been validated for trastuzumab (LLOQ 0...
December 2016: Bioanalysis
https://www.readbyqxmd.com/read/27883045/acidic-mammalian-chitinase-is-a-proteases-resistant-glycosidase-in-mouse-digestive-system
#17
Misa Ohno, Masahiro Kimura, Haruko Miyazaki, Kazuaki Okawa, Riho Onuki, Chiyuki Nemoto, Eri Tabata, Satoshi Wakita, Akinori Kashimura, Masayoshi Sakaguchi, Yasusato Sugahara, Nobuyuki Nukina, Peter O Bauer, Fumitaka Oyama
Chitinases are enzymes that hydrolyze chitin, a polymer of β-1, 4-linked N-acetyl-D-glucosamine (GlcNAc). Chitin has long been considered as a source of dietary fiber that is not digested in the mammalian digestive system. Here, we provide evidence that acidic mammalian chitinase (AMCase) can function as a major digestive enzyme that constitutively degrades chitin substrates and produces (GlcNAc)2 fragments in the mouse gastrointestinal environment. AMCase was resistant to endogenous pepsin C digestion and remained active in the mouse stomach extract at pH 2...
November 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27883023/a-comparison-of-the-performance-of-molecularly-imprinted-polymer-nanoparticles-for-small-molecule-targets-and-antibodies-in-the-elisa-format
#18
Katarzyna Smolinska-Kempisty, Antonio Guerreiro, Francesco Canfarotta, César Cáceres, Michael J Whitcombe, Sergey Piletsky
Here we show that molecularly imprinted polymer nanoparticles, prepared in aqueous media by solid phase synthesis with immobilised L-thyroxine, glucosamine, fumonisin B2 or biotin as template, can demonstrate comparable or better performance to commercially produced antibodies in enzyme-linked competitive assays. Imprinted nanoparticles-based assays showed detection limits in the pM range and polymer-coated microplates are stable to storage at room temperature for at least 1 month. No response to analyte was detected in control experiments with nanoparticles imprinted with an unrelated template (trypsin) but prepared with the same polymer composition...
November 24, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27882566/angiotensin-converting-enzyme-inhibitory-and-antioxidant-peptides-from-digestion-of-larvae-and-pupae-of-asian-weaver-ant-oecophylla-smaragdina-fabucious
#19
Werawich Pattarayingsakul, Arjaree Nilavongse, Onrapak Reamtong, Pamorn Chittavanich, Idsada Mungsantisuk, Yuvadee Mathong, Wipoo Prasitwuttisak, Watanalai Panbangred
BACKGROUND: Mixed larvae and pupae of weaver ant (Oecophylla smaragdina) are widely used as an important food ingredient in regions of Thailand. They have high nutritional values and comprise 53% protein and 13% lipid. Peptides derived from food proteins have been shown to possess biological activities. RESULTS: Peptides derived from pepsin and trypsin digestion of these weaver ant larvae and pupae were purified based on ACE inhibitory and antioxidant activities, and their amino acid sequences identified by LC-MS/MS...
November 23, 2016: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/27876763/growth-factor-and-co-receptor-release-by-structural-regulation-of-substrate-metalloprotease-accessibility
#20
Liseth M Parra, Monika Hartmann, Salome Schubach, Junzhi Ma, Peter Herrlich, Andreas Herrlich
Release of cytokines, growth factors and other life-essential molecules from precursors by a-disintegrin-and-metalloproteases (ADAMs) is regulated with high substrate-specificity. We hypothesized that this is achieved by cleavage-regulatory intracellular-domain (ICD)-modifications of the precursors. We show here that cleavage-stimuli-induced specific ICD-modifications cause structural substrate changes that enhance ectodomain sensitivity of neuregulin-1 (NRG1; epidermal-growth-factor) or CD44 (receptor-tyrosine-kinase (RTK) co-receptor) to chymotrypsin/trypsin or soluble ADAM...
November 23, 2016: Scientific Reports
keyword
keyword
77786
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"