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transport proteins » transport protein (Expander búsqueda), transport properties (Expander búsqueda), transfer protein (Expander búsqueda)
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1
artículo
Publicado 2015
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In 65 normal pregnant protein iodine numbers are determined via the technique of chloric acid. In the first trimester of pregnancy is an average value of 8.82 ug%; in the second quarter 10 ug% in the third quarter and 11.99 ug%; These elevations Iodine protein in normal pregnancy as due to increased estrogen, in turn, cause an increase in transport capacity of the thyroid hormone binding proteins, not increasing the free thyroxine are interpreted, which explains the absence of clinical symptoms of hyperthyroidism.
2
artículo
Publicado 2015
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In 65 normal pregnant protein iodine numbers are determined via the technique of chloric acid. In the first trimester of pregnancy is an average value of 8.82 ug%; in the second quarter 10 ug% in the third quarter and 11.99 ug%; These elevations Iodine protein in normal pregnancy as due to increased estrogen, in turn, cause an increase in transport capacity of the thyroid hormone binding proteins, not increasing the free thyroxine are interpreted, which explains the absence of clinical symptoms of hyperthyroidism.
3
artículo
Most Vibrio species identification methods take many days to deliver results, therefore it is important that research can be done on rapid and accurate detection and identification techniques. MALDI-TOF MS has proven to be a simple tool to identify and differentiate pathogens. The objective of this research was to recognize the available bibliographic information on the identification of Vibrio cholerae species non 01 non 139 of environmental origin by MALDI TOF MS. The Vibrio genera includes more than thirty species found in aquatic environments, some species cause diseases in both marine and human species. One of these organisms is V. cholerae, one of the most important species due to the production of cholera toxin (CT) which interrupts the transport of ions in the cells of the intestinal epithelium. The number of case reports involving V. cholerae no 01 no 139 in extraintestinal infe...
4
artículo
Publicado 2022
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The aim of this study was to evaluate the sedative effect of three products: valerian extract (Valeriana officinalis), benzocaine and tricaine methanesulfonate (MS-222) on stress levels produced by a simulated transport model in tilapia fingerlings. In a first part, the sedative dose of the products was determined based on the clinical characteristics that indicate depression of the central nervous system. In the second part, sedation and subsequent simulated transport for 3 hours were performed. The fish were euthanized, and blood samples were taken from the tail vein to determine cortisol (ELISA) and glucose (portable glucometer) levels, haematological parameters and mortality. The optimal doses of sedation were 200, 35 and 75 mg/l, respectively, for valerian extract, benzocaine and MS-222. After 3 h of simulated transport, cortisol and glucose values were similar or higher compared to...
5
tesis de maestría
Publicado 2025
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La neurocisticercosis es una enfermedad parasitaria del SNC que causa epilepsia adquirida y es generada por la forma larvaria del cestodo Taenia solium. Es de curso crónico y en pacientes sintomáticos se caracteriza por convulsiones y epilepsia. Estudios en ratas de laboratorio con NCC, reportan daño axonal caracterizado por el acúmulo de proteínas (neurofilamento, APP) en forma de hinchazones axonales, que podría estar relacionado con deterioro en el transporte axonal. Objetivo: Evaluar el patrón de inmunorreactividad de las proteínas motoras kinesina y dineína como marcadores de daño en el transporte axonal en tejido cerebral de ratas Holtzman con NCC tratadas y no tratadas con antiparasitarios; y su asociación con el daño axonal. Metodología: Se utilizó tejido cerebral de ratas con NCC tratadas y no tratadas con antiparasitarios y ratas sanas sacrificadas a diferentes ti...
6
Publicado 2019
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El objetivo de este trabajo de investigación fue las características estructurales de la célula en general son la individualidad, la sistematicidad y la tridimensionalidad. Las células contienen citosol y material genético y poseen enzimas y diversas proteínas. La membrana celular es una estructura formada por una bicapa lipídica que envuelve y delimita a la célula en su conjunto. El núcleo celular es un orgánulo membranoso en forma de esfera, localizado por lo general en la zona central de las células eucariotas. Contiene la mayor parte de la carga genética celular bajo la forma de moléculas muy largas de ADN. Estructuralmente, el núcleo celular consta de envoltura nuclear, poros nucleares, nucléolo, lámina nuclear, cromatina y cromosoma, nucleoplasma, otros cuerpos subnucleares (cuerpos de Cajal, PIKA, cuerpos PML, paraspeckles, speckles, cuerpos de escisión, cuerpos D...
7
tesis de grado
Publicado 2021
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Taenia solium develops into a sexually mature flatworm exclusively in the human gut; its eggs are excreted with the host´s feces, contaminating water, soil, and food. The evagination of the scolex from the ingested larval cyst and the consequent cellular proliferation are critical processes for the parasite´s development and growth into the adult form. Changes in the metabolism and glucose transport in proliferating tissues and during regeneration have been reported for other flatworm species. In T. solium, glucose transporters TGTP1 and TGTP2 have been identified, as well as a hypothetical SGLT1-like sodium-glucose cotransporter in an aberrant, hyperproliferative larval form. However, it is not known if these transporters play a significant role in the parasite´s metamorphosis. We found variations at the mRNA level of glucose transporters using RT-qPCR on T. solium cysts obtained fro...
8
tesis de grado
Publicado 1996
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This work is the development of coconut flakes Jl salty sweets using the hybrid - 121 (cocos nucifera l.) variety, its subsequent storage and transport. The samples obtained have the following characteristics: sweet pancakes; humidity 0.79%, fat 52.70%, proteins 6.10%, carbohydrates 35. 695), mineral 0.85%, fiber 3.87%; While the flakes salty presented the following composition: moisture or. HO ~ ~, fat 62.83%, proteins 6,78%, carbohydrates 22.27%, minerals 2. 30 ~ t, fiber 4. 92% reducing sugars no• presents in both samples. Was determined to do this the optimal parameters of flow of processing; control during and after the time of storage. The stages of the process involves the following operations: selection, pre-cooking, shell, mondado, washed, bleached, grated, pressed, first drying, preparation of solutions, mixing, second dried, cooled, packaged, stored and transport. In terms o...
9
artículo
Publicado 2019
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Se analizaron las características de una cepa de Bacillus amyloliquefaciens aislada del intestino de Arapaima gigas, seleccionada por su capacidad para generar inhibición de múltiples bacterias patógenas de peces, mediante el uso de herramientas moleculares como PCR y espectrometría de masas - MALDI TOF/TOF. Los resultados mostraron a través de PCR que esta cepa cuenta con genes claves para la generación de péptidos antimicrobianos como bmyB (bacillomycin L synthetase B), fenD (fengycin sintetasa), srfAA (subunidad 1 surfactin sintetasa), bacA (proteína de biosíntesis de bacilysin) e iturin (iturin A). Además, mediante el análisis por espectrometría de masas se detectaron bacteriocinas (plipastatin, gramicidin, fengycin, surfactin), proteínas de fijación al intestino (like-enolase), proteinas transportadoras de péptidos antimicrobianos (ABC-transporters) y proteínas de e...
10
artículo
Publicado 2019
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The characteristics of a strain of Bacillus amyloliquefaciens isolated from the intestine of Arapaima gigas, selected for its ability to generate inhibition of multiple pathogenic bacteria of fishes were analyzed by using molecular tools such as PCR and mass spectrometry - MALDI TOF / TOFM. The results showed through PCR that this strain has key genes for the generation of antimicrobial peptides such as bmyB (bacillomycin L synthetase B), fenD (fengycin synthetase), srfAA (subunit 1 surfactin synthetase), bacA (bacilysin biosynthesis protein) and iturin (iturin A). In addition, by mass spectrometry analysis were detected bacteriocins (plipastatin, gramicidin, fengycin, surfactin), intestine binding proteins (like-enolase), antimicrobial peptide transport proteins (ABC-transporters) and immune system stimulation proteins like flagelin. Collagenase, chitinases and xylose-isomerases protein...
11
tesis de maestría
Publicado 2019
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Universidad Nacional Agraria La Molina. Escuela de Posgrado. Maestría en Nutrición
12
tesis de maestría
Publicado 2022
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Las vacunas más importantes en la actualidad las constituyen principalmente proteínas recombinantes, las cuales se caracterizan por una rápida degradación y corto tiempo de circulación, por lo que su exposición al sistema inmune se limita a períodos breves. En ese sentido, múltiples dosis y refuerzos son necesarios para compensar esta limitación. Más recientemente se vienen probando con éxito las denominadas vacunas peptídicas, péptidos correspondientes a epítopes inmunogénicos/protectivos que se sintetizan químicamente y son administrados en varias dosis. Los epítopes son la porción clave de una proteína responsable de la inducción de inmunidad y protección. El uso de múltiples epítopes constituyen las denominadas vacunas multiepitópicas, las cuales fundamentalmente consisten de arreglos lineales de epítopes inmunogénico/protectivos unidos químicamente a la su...
13
artículo
Publicado 2023
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Free radicals are compounds characterized by having an unpaired electron in their outer orbit, a condition that makes them highly reactive, i.e., they interact through diffusion-controlled reactions with proteins, lipids and nucleic acids.They have also been referred to as reactive oxygen species (ROS), reactive nitrogen species (RNS) or reactive sulfur species(RSS). In the human organism, they are mainly produced in the mitochondrial electron transport chain, where respiratorycomplexes I and III specifically participate and reduce oxygen by converting it into superoxide anion. Likewise, they canbe formed through a wide variety of enzymatic and non-enzymatic reactions involving substances that are synthesized by cells or are ingested with food and some medicines. Human beings have an antioxidant system which is both enzymaticand non-enzymatic in nature and whose function is to protect th...
14
tesis doctoral
Publicado 2024
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Universidad Nacional Agraria La Molina. Escuela de Posgrado. Doctorado en Ciencias e Ingeniería Biológicas
15
tesis de grado
Publicado 2007
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The advantages of vegetal products and dry fruits are widely known, since when reducing its humidity content, diminishes the microbiological activity remarkably and enzymatic, in addition, the costs of storage and transport diminish. The present work had by objective to obtain pineallpne ?lices (Ananas comosus) dry, smooth cayena variety; using combined processes of osmótica dehydration and drying; sac~arose and ethanol were used like osmodeshidratantes. The next composition of the fresh pineallpne slices with humidity, total proteins, fat, ashes, fiber and carbohydrates of; 87.67 %, 0,14 %, 0,12 %, 0,30 %, 0,39 % and 11,38 % respectively; the ascórbico acid content was of 26,85 mg/1 OOg. Previously to the osmótica dehydration pineallpne slices of 1 ~m of thickness was verified that they are in optima! conditions of freshness, retired the heart, soon they submerged in osmóticas solut...
16
artículo
Publicado 2023
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The empirical use of alpaca rennet in the production of artisanal cheeses with cow’s milk is widespread in the high Andean communities of Perú and Bolivia, and has not been scientifically reported. The objective of the present study was to characterize alpaca rennet and evaluate its coagulating activity. Ready-to-use alpaca curds were collected directly from dairies in four neighborhoods of Viscapalca (Huancavelica-Perú, 4003 masl), which were transported under refrigeration and kept frozen at -20°C. The Crude Enzymatic Extract (CEE) was obtained by centrifugation at 560 x g for 10 min at 4°C, from which proteins were determined by Bradford, SDS-PAGE electrophoretic profile, coagulation time and proteolytic activity. The traditional management of alpaca rennet is also described. CEE was found to contain 29.80 to 52.91 µg/ml of protein. The SDS-PAGE electrophoretic profile revealed...
17
artículo
Publicado 2023
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The empirical use of alpaca rennet in the production of artisanal cheeses with cow’s milk is widespread in the high Andean communities of Perú and Bolivia, and has not been scientifically reported. The objective of the present study was to characterize alpaca rennet and evaluate its coagulating activity. Ready-to-use alpaca curds were collected directly from dairies in four neighborhoods of Viscapalca (Huancavelica-Perú, 4003 masl), which were transported under refrigeration and kept frozen at -20°C. The Crude Enzymatic Extract (CEE) was obtained by centrifugation at 560 x g for 10 min at 4°C, from which proteins were determined by Bradford, SDS-PAGE electrophoretic profile, coagulation time and proteolytic activity. The traditional management of alpaca rennet is also described. CEE was found to contain 29.80 to 52.91 µg/ml of protein. The SDS-PAGE electrophoretic profile revealed...
18
artículo
Publicado 2025
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The article presents aging as a multifactorial, progressive biological process shaped by intersecting theories, with special focus on oxidative stress and free radical involvement. The Free Radical Theory of Aging posits that reactive oxygen species (ROS), produced both endogenously and via environmental exposures, induce cumulative molecular damage to lipids, proteins, and DNA impacting cellular and tissue integrity. This oxidative stress contributes to age-related degenerative diseases such as cancer and Alzheimer’s. Although antioxidants (both endogenous enzymes and exogenous dietary compounds) offer protective mechanisms against ROS, empirical evidence on their efficacy in extending lifespan remains inconclusive, largely due to bioavailability challenges and systemic complexity. The article also addresses mitochondrial dysfunction and genomic instability especially mitochondrial DN...
19
artículo
Publicado 2025
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The article presents aging as a multifactorial, progressive biological process shaped by intersecting theories, with special focus on oxidative stress and free radical involvement. The Free Radical Theory of Aging posits that reactive oxygen species (ROS), produced both endogenously and via environmental exposures, induce cumulative molecular damage to lipids, proteins, and DNA impacting cellular and tissue integrity. This oxidative stress contributes to age-related degenerative diseases such as cancer and Alzheimer’s. Although antioxidants (both endogenous enzymes and exogenous dietary compounds) offer protective mechanisms against ROS, empirical evidence on their efficacy in extending lifespan remains inconclusive, largely due to bioavailability challenges and systemic complexity. The article also addresses mitochondrial dysfunction and genomic instability especially mitochondrial DN...
20
tesis de grado
Publicado 2006
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Los cambios post mortem que ocurren en el músculo del pescado son complejos y en corto tiempo. Durante el almacenamiento, las proteínas musculares pierden sus propiedades funcionales de acuerdo a su naturaleza y características bioquímicas intrínsecas, razón por la cual el presente estudio tiene como objetivos determinar el porcentaje de proteína de las fracciones: miofibrilar, sarcoplasmática, álcali-soluble y estroma, del músculo de “gamitana” Colossoma macropomun durante el almacenamiento en frío. Para ello, fueron utilizados peces de cultivo, de la especie “gamitana” Colossoma macropomun, del IVITA (Instituto de Investigaciones Tropicales y de Altura) del departamento de Ucayali, los cuales fueron colocados en un ¨cooler¨ con hielo y transportados a Lima. Se procedió a separar a los especímenes de acuerdo al tipo de almacenamiento (ambiente, hielo y congelació...
