keyword
MENU ▼
Read by QxMD icon Read
search

papain

keyword
https://www.readbyqxmd.com/read/27913224/a-novel-cross-linked-enzyme-aggregates-cleas-of-papain-and-neutrase-production-partial-characterization-and-application
#1
Zhongqin Chen, Yanwei Wang, Wei Liu, Jingya Wang, Haixia Chen
The neutrase (EC 3.4.24.4) and papain (EC 3.4.22.2) were together immobilized ascross-linked enzyme aggregates (N-P-CLEAs) and their properties were characterized. The influence of the precipitant, cross-linking ratio of glutaraldehyde and cross-linking time were investigated. Ethanol was selected as the more efficient precipitant compared with ammonium sulfate. The proper cross-linking ratio of enzyme and glutaraldehyde was 1:5 (v/v) and the optimized cross-linking time was 4h. N-P-CLEAs showed obvious improvement in thermal stability and pH stability than the free enzyme (P<0...
November 29, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27911395/preparation-of-primary-mixed-glial-cultures-from-adult-mouse-spinal-cord-tissue
#2
Jennifer T Malon, Ling Cao
It has been well-accepted that spinal cord glial responses contribute significantly to the development of neuropathic pain. Tremendous information regarding glial activities at the cellular and molecular levels has been obtained through in vitro cell culture systems. The in vitro systems utilized, mainly include primary glia derived from neonatal brain cortical tissue and immortalized cell lines. However, these systems may not reflect the characteristics of spinal cord glial cells in vivo. In order to further investigate the roles of spinal cord glial cells in the development of peripheral nerve injury-induced neuropathic pain using a culture system that better reflects the in vivo condition, our laboratory has developed a method to establish primary spinal cord mixed glial cultures from adult mice...
November 19, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27883128/modeling-the-archetype-cysteine-protease-reaction-using-dispersion-corrected-density-functional-methods-in-oniom-type-hybrid-qm-mm-calculations-the-proteolytic-reaction-of-papain
#3
Attila Fekete, István Komáromi
A proteolytic reaction of papain with a simple peptide model substrate N-methylacetamide has been studied. Our aim was twofold: (i) we proposed a plausible reaction mechanism with the aid of potential energy surface scans and second geometrical derivatives calculated at the stationary points, and (ii) we investigated the applicability of the dispersion corrected density functional methods in comparison with the popular hybrid generalized gradient approximations (GGA) method (B3LYP) without such a correction in the QM/MM calculations for this particular problem...
November 24, 2016: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/27873058/prediction-of-the-reverse-micellar-extraction-of-papain-using-dissipative-particle-dynamics-simulation
#4
Mingxiang Lin, Tingting Yu, Junfen Wan, Xuejun Cao
Reverse micellar extraction is a promising technology for large-scale protein purification, but its molecular interaction mechanisms have not been thoroughly characterized. In this study, a dissipative particle dynamics (DPD) molecular simulation method was employed to study the interactions among the surfactant, organic phase, water, and proteins on the mesoscopic scale. This study simulated the self-assembly process of the reverse micelle extraction of papain. The results showed that the papain could be extracted by a CTAB/isooctane/n-hexanol system, which was validated by extraction experiments...
November 21, 2016: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/27864069/microencapsulated-sln-an-innovative-strategy-for-pulmonary-protein-delivery
#5
Diana P Gaspar, Carmen Serra, Paulo R Lino, Lídia Gonçalves, Pablo Taboada, Carmen Remuñán-López, António J Almeida
Associating protein with nanoparticles is an interesting strategy to improve their bioavailability and biological activity. Solid lipid nanoparticles (SLN) have been sought as carriers for therapeutic proteins transport to the lung epithelium. Nevertheless, because of their low inertia, nanoparticles intended for pulmonary application usually escape from lung deposition. To overcome this problem, the production of spray-dried powders containing nanoparticles has been recently reported. Herein we developed new hybrid microencapsulated SLN for pulmonary administration, containing a model protein (papain, PAP)...
November 15, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27851982/interdomain-electron-transfer-in-cellobiose-dehydrogenase-is-governed-by-surface-electrostatics
#6
Alan Kadek, Daniel Kavan, Julien Marcoux, Johann Stojko, Alfons K G Felice, Sarah Cianférani, Roland Ludwig, Petr Halada, Petr Man
BACKGROUND: Cellobiose dehydrogenase (CDH) is a fungal extracellular oxidoreductase which fuels lytic polysaccharide monooxygenase with electrons during cellulose degradation. Interdomain electron transfer between the flavin and cytochrome domain in CDH, preceding the electron flow to lytic polysaccharide monooxygenase, is known to be pH dependent, but the exact mechanism of this regulation has not been experimentally proven so far. METHODS: To investigate the structural aspects underlying the domain interaction in CDH, hydrogen/deuterium exchange (HDX-MS) with improved proteolytic setup (combination of nepenthesin-1 with rhizopuspepsin), native mass spectrometry with ion mobility and electrostatics calculations were used...
November 13, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27845561/physico-chemical-and-in-silico-analysis-of-a-phytocystatin-purified-from-brassica-juncea-cultivar-roagro-5444
#7
Shumaila Khan, Sabahuddin Ahmad, Mohammad Imran Siddiqi, Bilqees Bano
This study describes the isolation and purification of a phytocystatin from seeds of Brassica juncea (Indian mustard; cultivar RoAgro 5444), which is an important oilseed crop both agriculturally and economically. The protein was purified by gel filtration chromatography with 24.3% yield and 204-fold purification, and visualised by 2D gel electrophoresis. The 18.1 kDa mustard cystatin was highly specific for cysteine proteinases. The plant cystatin inhibited cathepsin B, confirming its role in conferring pest resistance...
December 2016: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/27845251/heparan-sulfate-heparin-glycosaminoglycan-binding-alters-inhibitory-profile-and-enhances-anticoagulant-function-of-conserved-amblyomma-americanum-tick-saliva-serpin-19
#8
Željko M Radulović, Albert Mulenga
Some serine protease inhibitor (serpin) regulators of essential life pathways bind glycosaminoglycans (GAGs) to enhance inhibitory functions and achieve physiologically relevant rates. This study demonstrates that highly conserved Amblyomma americanum tick saliva serpin 19 (AAS19), a broad-spectrum inhibitor of hemostasis and inflammation system proteases and anticoagulant, can bind heparan sulfate/heparin (HS)GAGs and that this interaction alters its function. Substrate hydrolysis and unpaired t-test analyses revealed that HSGAG binding caused rAAS19 inhibitory activity to: (i) significantly increase against blood clotting factors (f) IIa (thrombin) and fIXa, (ii) significantly reduce against fXa and fXIIa and (iii) moderate to no effect against trypsin, kallikrein, papain, and plasmin...
November 12, 2016: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/27812926/purification-and-characterization-of-a-novel-anti-campylobacter-bacteriocin-produced-by-lactobacillus-curvatus-dn317
#9
Mohamed Zommiti, Hamdan Almohammed, Mounir Ferchichi
The lactic acid bacteria (LAB) microbiota of Saudi chicken ceca was determined. From 60 samples, 204 isolates of lactic acid bacteria were obtained. Three isolates produced antimicrobial activities against Campylobacter jejuni, Listeria monocytogenes, and Bacillus subtilis. The isolate DN317, which had the highest activity against Campylobacter jejuni ATCC 33560, was identified as Lactobacillus curvatus (GenBank accession numbers: KX353849 and KX353850). Full inhibitory activity was observed after a 2-h incubation with the supernatant at pH values between 4 and 8...
November 3, 2016: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/27789710/the-salmonella-effector-spvd-is-a-cysteine-hydrolase-with-a-serovar-specific-polymorphism-influencing-catalytic-activity-suppression-of-immune-responses-and-bacterial-virulence
#10
Grzegorz J Grabe, Yue Zhang, Michal Przydacz, Nathalie Rolhion, Yi Yang, Jonathan N Pruneda, David Komander, David W Holden, Stephen A Hare
Many bacterial pathogens secrete virulence (effector) proteins that interfere with immune signaling in their host. SpvD is a Salmonella enterica effector protein that we previously demonstrated to negatively regulate the NF-κB signaling pathway and promote virulence of S. enterica serovar Typhimurium in mice. To shed light on the mechanistic basis for these observations, we determined the crystal structure of SpvD and show that it adopts a papain-like fold with a characteristic cysteine-histidine-aspartate catalytic triad comprising C73, H162, and D182...
October 27, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27785842/interaction-of-almond-cystatin-with-pesticides-structural-and-functional-analysis
#11
Azad Alam Siddiqui, Peerzada Shariq Shaheen Khaki, Bilqees Bano
Pesticides are chemical substances that eliminate or control a variety of agricultural pests that damage crops and livestock. They not only affect the targeted pests but also affect the nontargeted systems, raising more concerns for their effect on both plant and animal systems. Cystatins (cysteine protease inhibitor) are ubiquitously present in all living cells and show a variety of important physiological functions. The present study shows the effect of different pesticides (pendimethalin, methoxyfenozide, and Cu(II) hydroxide) on purified almond cystatin...
October 27, 2016: Journal of Molecular Recognition: JMR
https://www.readbyqxmd.com/read/27771502/the-roles-of-cysteine-proteases-and-phytocystatins-in-development-and-germination-of-cereal-seeds
#12
Joanna Szewińska, Joanna Simińska, Wiesław Bielawski
Proteolysis is an important process for development and germination of cereal seeds. Among the many types of proteases identified in plants are the cysteine proteases (CPs) of the papain and legumain families, which play a crucial role in hydrolysing storage proteins during seed germination as well as in processing the precursors of these proteins and the inactive forms of other proteases. Moreover, all of the tissues of cereal seeds undergo progressive degradation via programed cell death, which is integral to their growth...
October 20, 2016: Journal of Plant Physiology
https://www.readbyqxmd.com/read/27771415/structural-transition-of-kidney-cystatin-induced-by-silicon-dioxide-nanoparticles-an-implication-for-renal-diseases
#13
Anas Shamsi, Azaj Ahmed, Bilqees Bano
Nanotechnology is one of the fastest growing fields of science owing to use of nanomaterials in industries and medicine across the globe. Currently silicon dioxide nanoparticles (SiO2 NPs) are one of the most popular nanomaterials owing to their inert toxicity profile and hence exposure to SiO2 nanoparticles is on the increase. Cystatins are thiol proteinase inhibitors (TPIs) ubiquitously distributed in plants and animals and they are now at the heed of a number of normal and pathological conditions and shouldn't be regarded solely as TPIs...
October 19, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27766618/human-cystatin-c-monomer-dimer-oligomer-and-amyloid-structures-are-related-to-health-and-disease
#14
REVIEW
Przemyslaw Jurczak, Patrick Groves, Aneta Szymanska, Sylwia Rodziewicz-Motowidlo
Human cystatin C (hCC) is a small protein belonging to the cystatin family of papain-like cysteine proteinase inhibitors. We review the recent literature concerning structural aspects of hCC related to disease. We focus on the mechanisms of hCC dimerization, oligomerization, and amyloid formation. Amyloid formation is associated with a number of neurodegenerative diseases that affect the independence and quality of life of aging populations. hCC is one of the second-wave proteins that have been found to undergo amyloidosis associated with disease...
October 19, 2016: FEBS Letters
https://www.readbyqxmd.com/read/27752702/isolated-and-combined-effects-of-photobiomodulation-therapy-topical-nonsteroidal-anti-inflammatory-drugs-and-physical-activity-in-the-treatment-of-osteoarthritis-induced-by-papain
#15
Shaiane Silva Tomazoni, Ernesto Cesar Pinto Leal-Junior, Lúcio Frigo, Rodney Capp Pallotta, Simone Teixeira, Patricia de Almeida, Jan Magnus Bjordal, Rodrigo Álvaro Brandão Lopes-Martins
No abstract text is available yet for this article.
October 1, 2016: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/27749818/single-cell-rna-seq-identifies-a-pd-1-hi-ilc-progenitor-and-defines-its-developmental-pathway
#16
Yong Yu, Jason C H Tsang, Cui Wang, Simon Clare, Juexuan Wang, Xi Chen, Cordelia Brandt, Leanne Kane, Lia S Campos, Liming Lu, Gabrielle T Belz, Andrew N J McKenzie, Sarah A Teichmann, Gordon Dougan, Pentao Liu
Innate lymphoid cells (ILCs) functionally resemble T lymphocytes in cytotoxicity and cytokine production but lack antigen-specific receptors, and are important regulators in immune response and tissue homeostasis(1, 2). ILCs are generated from common lymphoid progenitors (CLPs), which are subsequently committed to innate lymphoid lineages in the α lymphoid progenitor (αLP), early innate lymphoid progenitor (EILP), common helper innate lymphoid progenitor (CHILP) and innate lymphoid cell progenitor (ILCP) compartments(3, 4, 5, 6, 7, 8)...
September 29, 2016: Nature
https://www.readbyqxmd.com/read/27726041/photobiomodulation-therapy-in-the-modulation-of-inflammatory-mediators-and-bradykinin-receptors-in-an-experimental-model-of-acute-osteoarthritis
#17
Vanessa Lima Cavalcante de Oliveira, José Antonio Silva, Andrey Jorge Serra, Rodney Capp Pallotta, Evela Aparecida Pereira da Silva, Anna Cristina de Farias Marques, Regiane Dos Santos Feliciano, Rodrigo Labat Marcos, Ernesto Cesar Pinto Leal-Junior, Paulo de Tarso Camillo de Carvalho
The objective of this study was to evaluate the effects of photobiomodulation therapy (PBMT) on inflammatory indicators, i.e., inflammatory mediators (TNF-α and CINC-1), and pain characterized by hyperalgesia and B1 and B2 receptor activation at 6, 24, and 48 h after papain-induced osteoarthritis (OA) in rats. Fifty-four rats were subjected to hyperalgesia evaluations and then divided randomly into three groups-a control group and two groups OA and OA PBMT group by using laser parameters at wavelength (808 nm), output power (50 mW), energy per point (4 Joules), power density (1...
October 10, 2016: Lasers in Medical Science
https://www.readbyqxmd.com/read/27726040/effects-of-photobiomodulation-therapy-pharmacological-therapy-and-physical-exercise-as-single-and-or-combined-treatment-on-the-inflammatory-response-induced-by-experimental-osteoarthritis
#18
Shaiane Silva Tomazoni, Ernesto Cesar Pinto Leal-Junior, Rodney Capp Pallotta, Simone Teixeira, Patricia de Almeida, Rodrigo Álvaro Brandão Lopes-Martins
Osteoarthritis (OA) triggers increased levels of inflammatory markers, including prostaglandin (PG) E2 and proinflammatory cytokines. The elevation of cytokine levels is closely associated with increased articular tissue degeneration. Thus, the use of combination therapies may presumably be able to enhance the effects on the modulation of inflammatory markers. The present study aimed to evaluate and compare the effects of photobiomodulation therapy (PBMT), physical exercise, and topical nonsteroidal anti-inflammatory drug (NSAID) use on the inflammatory process after they were applied either alone or in different combinations...
October 10, 2016: Lasers in Medical Science
https://www.readbyqxmd.com/read/27703067/fibrin-gel-versus-papain-gel-in-the-healing-of-chronic-venous-ulcers-a-double-blind-randomized-controlled-trial
#19
Illymack Cf de Araújo, Elenice Defune, Luciana Pf Abbade, Hélio A Miot, Matheus Bertanha, Lídia R de Carvalho, Rosana R Ferreira, Winston B Yoshida
OBJECTIVES: Compare the efficacy and safety of fibrin gel to 8% papain gel for wound dressing of venous ulcers. METHOD: Patients with chronic venous ulcers were randomly assigned to one in three groups: Group 1-fibrin gel; Group 2-8% papain gel; Group 3-carbopol gel (control). Patients were seen every 15 days during 2 months, verifying reduction of the ulcer area, local infection, exudation, and epithelization. All serious or nonserious adverse events were recorded...
October 4, 2016: Phlebology
https://www.readbyqxmd.com/read/27690332/validation-and-application-of-a-nondestructive-and-contactless-method-for-rheological-evaluation-of-biomaterials
#20
Caroline Ceccaldi, Satu Strandman, Eve Hui, Emmanuel Montagnon, Cédric Schmitt, Anis Hadj Henni, Sophie Lerouge
Hydrogels are extensively used for tissue engineering, cell therapy or controlled release of bioactive factors. Nondestructive techniques that can follow their viscoelastic properties during polymerization, remodeling, and degradation are needed, since these properties are determinant for their in vivo efficiency. In this work, we proposed the viscoelastic testing of bilayered materials (VeTBiM) as a new method for nondestructive and contact-less mechanical characterization of soft materials. The VeTBiM method measures the dynamic displacement response of a material, to a low amplitude vibration in order to characterize its viscoelastic properties...
September 30, 2016: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
keyword
keyword
40584
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"