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https://www.readbyqxmd.com/read/29684817/avermectin-toxicity-in-bovines-less-than-thirty-days-old
#1
Daniel de Castro Rodrigues, Carolina Buzullini, Tiago Arantes Pereira, Breno Cayeiro Curz, Lucas Vinicius Costa Gomes, Vando Edésio Soares, Thiago Souza Azeredo Bastos, Luiz Fellipe Monteiro Couto, Welber Daniel Zanetti Lopes, Gilson Pereira de Oliveira, Alvimar José da Costa
The present study was designed to evaluate possible adverse effects of different dosages of avermectins (abamectin and a combination of ivermectin + abamectin) administered subcutaneously in calves less than one month of age. Clinical as well as biochemical parameters of blood and cerebrospinal fluid (CSF) were evaluated for animals subjected to various treatments. Thirty-five calves were divided into seven groups of five animals each: T01 (control), T02 (abamectin 200 μg/kg), T03 (abamectin 400 μg/kg), T04 (abamectin 600 μg/kg), T05 (ivermectin 450 μg/kg + abamectin 250 μg/kg), T06 (ivermectin 900 μg/kg + abamectin 500 μg/kg) and T07 (ivermectin 1350 μg/kg + abamectin 750 μg/kg)...
April 16, 2018: Research in Veterinary Science
https://www.readbyqxmd.com/read/29683766/displaying-31rg-1-peptide-on-the-surface-of-hpv16-l1-by-use-of-a-human-papillomavirus-chimeric-virus-like-particle-induces-cross-neutralizing-antibody-responses-in-mice
#2
Xue Chen, Ting Zhang, Hongyang Liu, Yaru Hao, Guoyang Liao, Xuemei Xu
Current available human papillomavirus (HPV) vaccines are based on the major capsid protein L1 virus-like particles (VLPs), which mainly induce type-specific neutralizing antibodies against vaccine types. Continuing to add more types of VLPs in a vaccine raises the complexity and cost of production which remains the principal impediment to achieve broad implementation of HPV vaccines, particularly in developing regions. In this study, we constructed 16L1-31L2 chimeric VLP (cVLP) by displaying HPV31 L2 aa.17-38 on the h4 coil surface region of HPV16 L1, and assessed its immunogenicity in mouse model...
April 23, 2018: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29683383/lipid-nanoparticles-enabling-gene-therapies-from-concepts-to-clinical-utility
#3
Jayesh A Kulkarni, Pieter R Cullis, Roy van der Meel
Genetic drugs based on RNA or DNA have remarkable therapeutic potential as virtually any disease can be treated by silencing a pathological gene, expressing a beneficial protein, or by editing defective genes. However, therapies based on nucleic acid polymers require sophisticated delivery systems to deliver these macromolecules to the interior of target cells. In this study, we review progress in developing nonviral lipid nanoparticle (LNP) delivery systems that have attractive properties, including ease of manufacture, reduced immune responses, multidosing capabilities, larger payloads, and flexibility of design...
April 23, 2018: Nucleic Acid Therapeutics
https://www.readbyqxmd.com/read/29681215/hyaluronic-acid-dictates-chondrocyte-morphology-and-migration-in-composite-gels
#4
Renu Mohan, Neethu Mohan, Dhanesh Vaikkath
Tissue equivalent collagen-hyaluronic acid based hydrogels are widely used for cartilage tissue engineering, however not much importance has been given to investigate how cellular responses are altered with varying concentrations of hyaluronic acid in gels. In this study, different concentrations of hyaluronic acid dialdehyde (HAD) were combined with collagen to fabricate collagen-HAD composite (CH) gels, and the influence of HAD on cell shape, migration, viability, cytoskeletal organization and gel contraction were examined...
April 21, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29680710/optimisation-of-plant-protein-and-transglutaminase-content-in-novel-beef-restructured-steaks-for-older-adults-by-central-composite-design
#5
Sephora Baugreet, Joseph P Kerry, André Brodkorb, Carolina Gomez, Mark Auty, Paul Allen, Ruth M Hamill
With the goal of optimising a protein-enriched restructured beef steak targeted at the nutritional and chemosensory requirements of older adults, technological performance of thirty formulations, containing plant-based ingredients, pea protein isolate (PPI), rice protein (RP) and lentil flour (LF) with transglutaminase (TG) to enhance binding of meat pieces, were analysed. Maximal protein content of 28% in cooked product was achieved with PPI, RP and LF. Binding strength was primarily affected by TG, while textural parameters were improved with LF inclusion...
March 29, 2018: Meat Science
https://www.readbyqxmd.com/read/29680651/productivity-of-lactating-dairy-cows-fed-diets-with-teff-hay-as-the-sole-forage
#6
B A Saylor, D H Min, B J Bradford
Groundwater depletion is one of the most pressing issues facing the dairy industry in arid regions. One strategy to improve the industry's drought resilience involves feeding drought-tolerant forage crops in place of traditional forage crops such as alfalfa and corn silage. The objective of this study was to assess the productivity of lactating dairy cows fed diets with teff hay (Eragrostis tef) as the sole forage. Teff is a warm-season annual grass native to Ethiopia that is well adapted to drought conditions...
April 18, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29680589/peanut-allergens
#7
Chiara Palladino, Heimo Breiteneder
Peanut allergens have the potential to negatively impact on the health and quality of life of millions of consumers worldwide. The seeds of the peanut plant Arachis hypogaea contain an array of allergens that are able to induce the production of specific IgE antibodies in predisposed individuals. A lot of effort has been focused on obtaining the sequences and structures of these allergens due to the high health risk they represent. At present, 16 proteins present in peanuts are officially recognized as allergens...
April 18, 2018: Molecular Immunology
https://www.readbyqxmd.com/read/29680234/rational-design-of-liquid-formulations-of-proteins
#8
Mark C Manning, Jun Liu, Tiansheng Li, Ryan E Holcomb
Twenty years ago, a number of eminent pharmaceutical scientists collaborated on an article describing a rational approach to developing stable lyophilized protein formulations (Carpenter, Pikal, Chang, & Randolph, 1997). Since that time, no corresponding document for rational development of liquid formulations of proteins has appeared. Certainly, many of the principles underpinning rational protein formulation have been known for some time, but no overarching scheme has ever been described in the literature...
2018: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/29679665/comparison-of-exosomes-and-ferritin-protein-nanocages-for-the-delivery-of-membrane-protein-therapeutics
#9
Eunji Cho, Gi-Hoon Nam, Yeonsun Hong, Yoon Kyoung Kim, Dong-Hwee Kim, Yoosoo Yang, In-San Kim
Exosomes are small membrane vesicles secreted by most cell types that play an important role in intercellular communication. Due to the characteristic of transferring their biomacromolecules, exosomes have potential as a new alternative for delivering protein therapeutics. Here, we investigate whether exosomes provide crucial advantages over other nanoparticles, in particular protein nanocage formulations, as a delivery system for membrane protein therapeutics. We characterized membrane-scaffold-based exosomes and protein-scaffold-based ferritin nanocages, both harboring SIRPα (signal regulatory protein α), an antagonist of CD47 on tumor cells...
April 18, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29679536/curcumin-formulated-in-solid-lipid-nanoparticles-has-enhanced-efficacy-in-hodgkin-s-lymphoma-in-mice
#10
Jacob Guorgui, Ruixue Wang, George Mattheolabakis, Gerardo G Mackenzie
Curcumin reduces Hodgkin's lymphoma (HL) cell growth in vitro, but its unfavorable pharmacokinetics highlight the need for novel in vivo delivery systems. Thus, we explored whether formulation of curcumin in solid lipid nanoparticles (SLN-curc) or d-α-Tocopheryl polyethylene glycol 1000 succinate (TPGS) nanoparticles (TPGS-curc) could enhance its efficacy in mice. Curcumin formulated in SLN and in TPGS resulted in higher curcumin plasma levels in mice. Compared to vehicle-treated controls, SLN-curc and TPGS-curc reduced HL xenograft growth by 50...
April 18, 2018: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/29678545/preparation-of-drug-loaded-small-unilamellar-liposomes-and-evaluation-of-their-potential-for-the-treatment-of-chronic-respiratory-diseases
#11
Vincenzo De Leo, Silvia Ruscigno, Adriana Trapani, Sante Di Gioia, Francesco Milano, Delia Mandracchia, Roberto Comparelli, Stefano Castellani, Angela Agostiano, Giuseppe Trapani, Lucia Catucci, Massimo Conese
The aim of the present investigation was to evaluate the influence of liposome formulation on the ability of vesicles to penetrate a pathological mucus model obtained from COPD affected patients in order to assess the potential of such vesicles for the treatment of chronic respiratory diseases by inhalation. Therefore, Small Unilamellar Liposomes (PLAIN-LIPOSOMEs), Pluronic® F127-surface modified liposomes (PF-LIPOSOMEs) and PEG 2000PE-surface modified liposomes (PEG-LIPOSOMEs) were prepared using the micelle-to-vesicle transition (MVT) method and beclomethasone dipropionate (BDP) as model drug...
April 17, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29678431/organ-derived-decellularized-extracellular-matrix-a-game-changer-for-bioink-manufacturing
#12
REVIEW
Deepak Choudhury, Han Win Tun, Tianyi Wang, May Win Naing
The extracellular matrix (ECM) comprises a complex milieu of proteins and other growth factors that provide mechanical, biophysical, and biochemical cues to cells. The ECM is organ specific, and its detailed composition varies across organs. Bioinks are material formulations and biological molecules or cells processed during a bioprinting process. Organ-derived decellularized ECM (dECM) bioinks have emerged as arguably the most biomimetic bioinks. Here, we review bioinks derived from different decellularized organs, the techniques used to obtain these bioinks, and the characterization methods used to evaluate their quality...
April 17, 2018: Trends in Biotechnology
https://www.readbyqxmd.com/read/29674143/bioactive-peptides-and-free-amino-acids-profiles-in-different-types-of-european-dry-fermented-sausages
#13
Marta Gallego, Leticia Mora, Elizabeth Escudero, Fidel Toldrá
A wide variety of dry-fermented sausages are produced in European countries, where are considered valued traditional products. An intense proteolysis takes place during the processing of dry-fermented sausages due to the combined action of muscle and microbial peptidases, generating large amounts of peptides and free amino acids. These compounds participate in the development of the characteristic flavor of dry-fermented products, but some peptides can also exert certain bioactivities such as antioxidant and ACE inhibitory activities...
April 5, 2018: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29674057/high-resolution-glycoform-profiling-of-intact-therapeutic-proteins-by-hydrophilic-interaction-chromatography-mass-spectrometry
#14
Elena Domínguez-Vega, Sara Tengattini, Claudia Peintner, Jordy van Angeren, Caterina Temporini, Rob Haselberg, Gabriella Massolini, Govert W Somsen
Glycosylation is considered a critical quality attribute of therapeutic proteins. Protein heterogeneity introduced by glycosylation includes differences in the nature, number and position of the glycans. Whereas analysis of released glycans and glycopeptides provides information about the composition and/or position of the glycan, intact glycoprotein analysis allows assignment of individual proteoforms and co-occurring modifications. Yet, resolving protein glycoforms at the intact level is challenging. We have explored the capacity of hydrophilic liquid chromatography-mass spectrometry (HILIC-MS) for assessing glycosylation patterns of intact pharmaceutical proteins by analyzing the complex glycoproteins interferon-beta-1a (rhIFN-β - 1a) and recombinant human erythropoietin (rhEPO)...
July 1, 2018: Talanta
https://www.readbyqxmd.com/read/29673642/hyperthermia-mediated-drug-delivery-induces-biological-effects-at-the-tumor-and-molecular-levels-that-improve-cisplatin-efficacy-in-triple-negative-breast-cancer
#15
Michael Dunne, Yannan N Dou, Danielle M Drake, Tara Spence, Sávio M L Gontijo, Peter G Wells, Christine Allen
Triple negative breast cancer is an aggressive disease that accounts for at least 15% of breast cancer diagnoses, and a disproportionately high percentage of breast cancer related morbidity. Intensive research efforts are focused on the development of more efficacious treatments for this disease, for which therapeutic options remain limited. The high incidence of mutations in key DNA repair pathways in triple negative breast cancer results in increased sensitivity to DNA damaging agents, such as platinum-based chemotherapies...
April 16, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29670347/alpcs-4-pdt-for-gastric-cancer-therapy-using-gold-nanorod-cationic-liposome-and-pluronic-%C3%A2-f127-nanomicellar-drug-carriers
#16
Jing Xin, Sijia Wang, Bing Wang, Jiazhuang Wang, Jing Wang, Luwei Zhang, Bo Xin, Lijian Shen, Zhenxi Zhang, Cuiping Yao
Purpose: As a promising photodynamic therapy (PDT) agent, Al(III) phthalocyanine chloride tetrasulfonic acid (AlPcS4 ) provides deep penetration into tissue, high quantum yields, good photostability, and low photobleaching. However, its low delivery efficiency and high binding affinity to serum albumin cause its low penetration into cancer cells, further limiting its PDT effect on gastric cancer. In order to improve AlPcS4 /PDT effect, the AlPcS4 delivery sys tems with different drug carriers were synthesized and investigated...
2018: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29669838/effects-of-adjuvants-on-hiv-1-envelope-glycoprotein-sosip-trimers-in-vitro
#17
Gabriel Ozorowski, Albert Cupo, Michael Golabek, Michelle LoPiccolo, Thomas A Ketas, Matt Cavallary, Christopher A Cottrell, P J Klasse, Andrew B Ward, John P Moore
Native-like, soluble, recombinant SOSIP trimers of various designs and based on several env genes of human immunodeficiency virus type 1 (HIV-1) are being tested as immunogens in different animal models. These experiments almost always involve co-formulating the trimers with an adjuvant to boost the magnitude of the immune responses. One factor relevant to the choice of an adjuvant is that it should not physically damage the immunogen or impede its ability to present relevant epitopes. As examples, an adjuvant formulation that includes harsh detergents could disrupt the structural integrity of a trimer, and any charged compounds in the formulation could bind to counter-charged regions of the trimer and physically occlude nearby epitopes...
April 18, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29666611/genome-sequence-assembly-and-characterization-of-two-metschnikowia-fructicola-strains-used-as-biocontrol-agents-of-postharvest-diseases
#18
Edoardo Piombo, Noa Sela, Michael Wisniewski, Maria Hoffmann, Maria L Gullino, Marc W Allard, Elena Levin, Davide Spadaro, Samir Droby
The yeast Metschnikowia fructicola was reported as an efficient biological control agent of postharvest diseases of fruits and vegetables, and it is the bases of the commercial formulated product "Shemer." Several mechanisms of action by which M. fructicola inhibits postharvest pathogens were suggested including iron-binding compounds, induction of defense signaling genes, production of fungal cell wall degrading enzymes and relatively high amounts of superoxide anions. We assembled the whole genome sequence of two strains of M...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29666544/efficiency-of-selected-food-ingredients-on-protein-efficiency-ratio-glycemic-index-and-in-vitro-digestive-properties
#19
M B Anusha, Naveen Shivanna, G Phani Kumar, K R Anilakumar
The human body on exposure to high-altitude, undergoes many physiological challenges. The cardiopulmonary reserves are favoured against the digestive system. Hence, the efficiency of digestion is compromised to a great extent, which leads to anorexia, hypophagia, epigastralgia, dyspepsia, nausea, and peptic ulcers. The present study was focused on in vitro digestive influence of selected food ingredients viz. cardamom, carom, cumin, coriander, fennel, fenugreek, ginger, pepper, star anise, turmeric, papaya, orange, pineapple, liquorice, valerian, and tarragon on the activities of digestive enzymes of rat pancreas, duodenum, and small intestine...
May 2018: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/29666532/effect-of-argel-solenostemma-argel-leaf-extract-on-quality-attributes-of-chicken-meatballs-during-cold-storage
#20
Fahad Y Al-Juhaimi, Syed A Shahzad, Ali S Ahmed, Oladipupo Q Adiamo, Isam A Mohamed Ahmed, Omer N Alsawmahi, Kashif Ghafoor, Elfadil E Babiker
This study aimed to evaluate the antioxidant activity of Argel leaf water extract (ALWE) and its effect at different concentrations (0, 5, 10, and 20 mg/100 mL) on the antioxidant, antimicrobial, physicochemical, and sensory attributes of chicken meatballs during cold storage. ALWE contained substantial quantities of total phenolic content (TPC), anthocyanin, and exhibited high DPPH scavenging activity. ALWE incorporation in chicken meatballs had a varying effect on the chemical composition and sensory attributes of the product...
May 2018: Journal of Food Science and Technology
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