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Medicinas Complementárias
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1.
Allergy ; 79(4): 908-923, 2024 04.
Artículo en Inglés | MEDLINE | ID: mdl-38311961

RESUMEN

BACKGROUND: Pollen allergy poses a significant health and economic burden in Europe. Disease patterns are relatively homogeneous within Central and Northern European countries. However, no study broadly assessed the features of seasonal allergic rhinitis (SAR) across different Southern European countries with a standardized approach. OBJECTIVE: To describe sensitization profiles and clinical phenotypes of pollen allergic patients in nine Southern European cities with a uniform methodological approach. METHODS: Within the @IT.2020 multicenter observational study, pediatric and adult patients suffering from SAR were recruited in nine urban study centers located in seven countries. Clinical questionnaires, skin prick tests (SPT) and specific IgE (sIgE) tests with a customized multiplex assay (Euroimmun Labordiagnostika, Lübeck, Germany) were performed. RESULTS: Three hundred forty-eight children (mean age 13.1 years, SD: 2.4 years) and 467 adults (mean age 35.7 years SD: 10.0 years) with a predominantly moderate to severe, persistent phenotype of SAR were recruited. Grass pollen major allergenic molecules (Phl p 1 and/or Phl p 5) ranged among the top three sensitizers in all study centers. Sensitization profiles were very heterogeneous, considering that patients in Rome were highly poly-sensitized (sIgE to 3.8 major allergenic molecules per patient), while mono-sensitization was prominent and heterogeneous in other cities, such as Marseille (sIgE to Cup a 1: n = 55/80, 68.8%) and Messina (sIgE to Par j 2: n = 47/82, 57.3%). Co-sensitization to perennial allergens, as well as allergic comorbidities also broadly varied between study centers. CONCLUSIONS: In Southern European countries, pollen allergy is heterogeneous in terms of sensitization profiles and clinical manifestations. Despite the complexity, a unique molecular, multiplex, and customized in-vitro IgE test detected relevant sensitization in all study centers. Nevertheless, this geographical diversity in pollen allergic patients imposes localized clinical guidelines and study protocols for clinical trials of SAR in this climatically complex region.


Asunto(s)
Hipersensibilidad , Rinitis Alérgica Estacional , Adulto , Humanos , Niño , Adolescente , Rinitis Alérgica Estacional/diagnóstico , Rinitis Alérgica Estacional/epidemiología , Inmunoglobulina E , Alérgenos , Polen , Pruebas Cutáneas , Fenotipo
2.
Braz. j. biol ; 842024.
Artículo en Inglés | LILACS-Express | LILACS, VETINDEX | ID: biblio-1469351

RESUMEN

Abstract The bioecology and infestation aspects of Neotuerta platensis Berg, 1882 (Lepidoptera: Noctuidae) on plants are poorly known. This insect fed on the leaves of common purslane, Portulaca oleracea L. (Portulacaceae) for two consecutive years, which triggered its study in the following five years in Januária, Minas Gerais State, Brazil. The objective of this work was to study the bioecology and infestation aspects of N. platensis on P. oleracea plants in the field and laboratory. The mean duration (± SD) of the egg, larva and pupa stages was 3.6 ± 0.89, 11.5 ± 2.81 and 10.7 ± 1.97 days, respectively. The mean numbers of egg masses and eggs per female (± SD) were 3.8 ± 1.16 and 891.6 ± 116.83, respectively. The percentage of infested plants was 59, 74, 0, 78 and 75% and the mean numbers of larvae per plant (± SD) ranged from 0.7 ± 0.45 to 1.6 ± 0.49 individuals, respectively from 2015 to 2019. Neotuerta platensis larvae infested P. oleracea plants in four out of five years evaluated.


Resumo Os aspectos de bioecologia e infestação de Neotuerta platensis Berg, 1882 (Lepidoptera: Noctuidae) em plantas são pouco conhecidos. Esse inseto se alimentou das folhas de beldroega comum, Portulaca oleracea L. (Portulacaceae) por dois anos consecutivos, o que desencadeou seu estudo nos cinco anos seguintes em Januária, Minas Gerais, Brasil. O objetivo deste trabalho foi estudar a bioecologia e os aspectos da infestação de N. platensis em plantas de P. oleracea em campo e laboratório. A duração média (± DP) dos estágios de ovo, larva e pupa foi de 3,6 ± 0,89, 11,5 ± 2,81 e 10,7 ± 1,97 dias, respectivamente. Os números médios de posturas e ovos por fêmea (± DP) foram de 3,8 ± 1,16 e 891,6 ± 116,83, respectivamente. A porcentagem de plantas infestadas foi de 59, 74, 0, 78 e 75% e os números médios de larvas por planta (± DP) variaram de 0,7 ± 0,45 a 1,6 ± 0,49 indivíduos, respectivamente de 2015 a 2019. Larvas de N. platensis infestaram plantas de P. oleracea em quatro dos cinco anos avaliados.

3.
Braz. j. biol ; 84: e252836, 2024. tab, ilus
Artículo en Inglés | LILACS, VETINDEX | ID: biblio-1360210

RESUMEN

The bioecology and infestation aspects of Neotuerta platensis Berg, 1882 (Lepidoptera: Noctuidae) on plants are poorly known. This insect fed on the leaves of common purslane, Portulaca oleracea L. (Portulacaceae) for two consecutive years, which triggered its study in the following five years in Januária, Minas Gerais State, Brazil. The objective of this work was to study the bioecology and infestation aspects of N. platensis on P. oleracea plants in the field and laboratory. The mean duration (± SD) of the egg, larva and pupa stages was 3.6 ± 0.89, 11.5 ± 2.81 and 10.7 ± 1.97 days, respectively. The mean numbers of egg masses and eggs per female (± SD) were 3.8 ± 1.16 and 891.6 ± 116.83, respectively. The percentage of infested plants was 59, 74, 0, 78 and 75% and the mean numbers of larvae per plant (± SD) ranged from 0.7 ± 0.45 to 1.6 ± 0.49 individuals, respectively from 2015 to 2019. Neotuerta platensis larvae infested P. oleracea plants in four out of five years evaluated.


Os aspectos de bioecologia e infestação de Neotuerta platensis Berg, 1882 (Lepidoptera: Noctuidae) em plantas são pouco conhecidos. Esse inseto se alimentou das folhas de beldroega comum, Portulaca oleracea L. (Portulacaceae) por dois anos consecutivos, o que desencadeou seu estudo nos cinco anos seguintes em Januária, Minas Gerais, Brasil. O objetivo deste trabalho foi estudar a bioecologia e os aspectos da infestação de N. platensis em plantas de P. oleracea em campo e laboratório. A duração média (± DP) dos estágios de ovo, larva e pupa foi de 3,6 ± 0,89, 11,5 ± 2,81 e 10,7 ± 1,97 dias, respectivamente. Os números médios de posturas e ovos por fêmea (± DP) foram de 3,8 ± 1,16 e 891,6 ± 116,83, respectivamente. A porcentagem de plantas infestadas foi de 59, 74, 0, 78 e 75% e os números médios de larvas por planta (± DP) variaram de 0,7 ± 0,45 a 1,6 ± 0,49 indivíduos, respectivamente de 2015 a 2019. Larvas de N. platensis infestaram plantas de P. oleracea em quatro dos cinco anos avaliados.


Asunto(s)
Animales , Portulaca/parasitología , Larva , Lepidópteros
4.
Theriogenology ; 192: 109-115, 2022 Oct 15.
Artículo en Inglés | MEDLINE | ID: mdl-36113319

RESUMEN

This study investigates the impact of eugenol (EU) supplementation on bovine oocyte in vitro maturation (IVM) and antioxidant capacity, as well as in vitro embryo production and quality after conventional in vitro fertilization (IVF). A total of 1077 cumulus oocyte complexes were cultured in TCM-199+ without EU supplementation (control treatment) or supplemented with EU at the concentrations of 10 µM (EU-10), 20 µM (EU-20), or 40 µM (EU-40). After IVM, the oocytes were subjected to IVF and embryo culture. The addition of EU at 40 µM to the IVM medium improved (P < 0.05) the antioxidant capacity and cleavage rate when compared to the control treatment. Moreover, a positive correlation (r = 0.61, P < 0.03) was observed between cleavage rate and EU concentration. The addition of EU at concentrations of 10 and 20 µM decreased (P < 0.05) the calreticulin (CALR) levels in expanded blastocysts when compared to the control treatment and EU-40 treatment. However, the EU-10 and EU-20 treatments had a greater (P < 0.05) mean total cell number (TCN) per expanded blastocyst when compared to the control treatment and EU-40 treatment. In conclusion, the addition of EU to the enriched culture medium during IVM of bovine oocytes improved the antioxidant capacity of the spent medium, as well as the cleavage rate and embryonic quality (i.e., TCN/expanded blastocyst), and reduced the endoplasmic reticulum stress (i.e., CALR levels) in the embryos. Thus, we recommend enriching the IVM medium with 10 µM EU for in vitro bovine embryo production.


Asunto(s)
Eugenol , Técnicas de Maduración In Vitro de los Oocitos , Animales , Antioxidantes/farmacología , Blastocisto , Calreticulina , Bovinos , Recuento de Células/veterinaria , Técnicas de Maduración In Vitro de los Oocitos/veterinaria
6.
Food Chem ; 341(Pt 2): 128262, 2021 Mar 30.
Artículo en Inglés | MEDLINE | ID: mdl-33038800

RESUMEN

Given the growing tendency of consumers to choose products with natural ingredients, food industries have directed scientific research in this direction. In this regard, algae are an attractive option for the research, since they can synthesize a group of secondary metabolites, called phenolic compounds, associated with really promising properties and bioactivities. The objective of this work was to classify the major phenolic compounds, compare the effectiveness of the different extractive techniques used for their extraction, from traditional systems (like heat assisted extraction) to the most advance ones (such as ultrasound, microwave or supercritical fluid extraction); the available methods for identification and quantification; the stability of the enriched extract in phenolic compounds and the main bioactivities described for these secondary metabolites, to offer an overview of the situation to consider if it is possible and/or convenient an orientation of phenolic compounds from algae towards an industrial application.


Asunto(s)
Antiinfecciosos/farmacología , Antineoplásicos Fitogénicos/farmacología , Antioxidantes/farmacología , Fenoles/farmacología , Extractos Vegetales/química , Algas Marinas/química , Antiinfecciosos/química , Antiinfecciosos/aislamiento & purificación , Antineoplásicos Fitogénicos/química , Antineoplásicos Fitogénicos/aislamiento & purificación , Antioxidantes/química , Antioxidantes/aislamiento & purificación , Fenoles/química , Fenoles/aislamiento & purificación , Agua de Mar , Relación Estructura-Actividad
7.
Food Funct ; 11(10): 8493-8515, 2020 Oct 21.
Artículo en Inglés | MEDLINE | ID: mdl-33034610

RESUMEN

Wild edible plants (WEPs) have been consumed since ancient times. They are considered as non-domesticated plants that grow spontaneously in nature, particularly in forests and bushlands, where they can be found and collected to be incorporated into human nutrition. Increasingly, WEPs are gaining importance as they are potential sources of food due to their nutritional value, besides showing positive health effects and offer innovative applications in haute cuisine. As these autochthonous plants grow naturally in the environment, they are more suitable to adapt to different climatic conditions as well as biotic and abiotic factors. Therefore, a door has been opened for their possible cultivation as they seem to require fewer expenses than other commercially cultivated plants. Moreover, the consumers demand for new products of natural origin that are sustainable and ecologically labeled have also boosted WEPs' recovery and incorporation into the market. In addition, they are considered as promising sources of essential compounds needed not only in human diet including carbohydrates, proteins, and lipids but also of other minor compounds as phenols, vitamins, or carotenoids that have shown numerous beneficial bioactivities such as antioxidants, anti-inflammatory, or anti-tumor activity. The use of these plants rich in bioactive molecules could be beneficial from the health point of view as the human body is not always capable of producing enough defenses, for instance, preventing oxidative damage. In particular, the presence of phenolic compounds in these vegetal matrices is supposed to provide a prophylactic effect against further pathogenesis and disorders related to aging or oxidative stresses. Regarding all this information based on traditional knowledge and ethnobotanical data, different WEPs found in the Northwestern region of Spain were selected, namely, Mentha suaveolens, Glechoma hederacea, Prunus spinosa, Apium nodiflorum, Artemisia absinthium, Silybum marianum, Picris hieracioides, Portulaca oleracea, Crithmum maritimum, and the genus Amaranthus. However, even though tradition and popular knowledge are excellent tools for the exploitation of these plants, it is necessary to develop regulations in this aspect to assure safety and veracity of food products. This article aims to review the main aspects of their bioactive properties, their traditional use, and the possibility of their incorporation into the market as new functional foods, looking at innovative and healthy gastronomic applications.


Asunto(s)
Dieta , Alimentos , Salud , Valor Nutritivo , Plantas Comestibles , Antioxidantes/análisis , Carotenoides/análisis , Humanos , Legislación Alimentaria , Plantas Comestibles/química , Polifenoles/análisis , España , Vitaminas/análisis
8.
Neuroscience ; 442: 286-295, 2020 08 21.
Artículo en Inglés | MEDLINE | ID: mdl-32599125

RESUMEN

During prolonged dehydration, body fluid homeostasis is challenged by extracellular fluid (ECF) hyperosmolality, which induce important functional changes in the hypothalamus, in parallel with other effector responses, such as the activation of the local renin-angiotensin system (RAS). Therefore, in the present study we investigated the role of sodium-driven ECF hyperosmolality on glial fibrillary acid protein (GFAP) immunoreactivity and protein expression, membrane capacitance, mRNA expression of RAS components and glutamate balance in cultured hypothalamic astrocytes. Our data show that hypothalamic astrocytes respond to increased hyperosmolality with a similar decrease in GFAP expression and membrane capacitance, indicative of reduced cellular area. Hyperosmolality also downregulates the transcript levels of angiotensinogen and both angiotensin-converting enzymes, whereas upregulates type 1a angiotensin II receptor mRNA. Incubation with hypertonic solution also decreases the immunoreactivity to the membrane glutamate/aspartate transporter (GLAST) as well as tritiated-aspartate uptake by astrocytes. This latter effect is completely restored to basal levels when astrocytes previously exposed to hypertonicity are incubated under isotonic conditions. Together with a direct effect on two important local signaling systems (glutamate and RAS), these synaptic rearrangements driven by astrocytes may accomplish for a coordinated increase in the excitatory drive onto the hypothalamic neurosecretory system, ultimately culminating with increased AVP release in response to hyperosmolality.


Asunto(s)
Astrocitos , Ácido Glutámico , Astrocitos/metabolismo , Células Cultivadas , Transportador 2 de Aminoácidos Excitadores/metabolismo , Proteína Ácida Fibrilar de la Glía/metabolismo , Hipotálamo/metabolismo , ARN Mensajero
9.
Food Chem ; 330: 127197, 2020 Nov 15.
Artículo en Inglés | MEDLINE | ID: mdl-32540521

RESUMEN

Plants have been traditionally used for the treatment of different types of illness, due to biomolecules with recognised benefits. Rosaceae family is used in traditional Galician medicine. The following plants Agrimonia eupatoria, Crataegus monogyna, Filipendula ulmaria, Geum urbanum, Potentilla erecta and Rosa canina are usually found in treatments. The aim of this study is to perform an ethnobotanical review about the bioactive compounds of these plants and their different bioactivities, both studied in vitro and in vivo. The nature of the bioactive compounds is varied, highlighting the presence of different phenolic compounds, such as phenolic acids, flavonoids or tannins. Understanding the beneficial effects of the administration of the whole plant or target tissues from A. eupatoria, C. monogyna, F. ulmaria, G. urbanum, P. erecta and R. canina as well as those from their individual compounds could lead to the development of new drugs based on the use of natural ingredients.


Asunto(s)
Rosaceae/química , Desarrollo Industrial , Fenoles/química
10.
Materials (Basel) ; 13(4)2020 Feb 11.
Artículo en Inglés | MEDLINE | ID: mdl-32054053

RESUMEN

Multifunctional nanosystems combining magnetic and plasmonic properties are a promising approach for cancer therapy, allowing magnetic guidance and a local temperature increase. This capability can provide a triggered drug release and synergistic cytotoxic effect in cancer cells. In this work, nickel ferrite/gold nanoparticles were developed, including nickel ferrite magnetic nanoparticles decorated with plasmonic gold nanoparticles and core/shell nanostructures (with a nickel ferrite core and a gold shell). These nanoparticles were covered with a surfactant/lipid bilayer, originating liposome-like structures with diameters below 160 nm. The heating capacity of these systems, upon excitation with light above 600 nm wavelength, was assessed through the emission quenching of rhodamine B located in the lipid layer. The developed nanosystems show promising results for future applications in thermotherapy.

11.
J Dairy Sci ; 103(4): 3161-3176, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-32089313

RESUMEN

We showed previously that dairy cows fed [diet dry matter (DM) basis] 25% finely ground field pea (GFP) plus rumen-protected (RP)-Met and RP-Lys had greater milk true protein yield and plasma Met concentration, but lower plasma His, compared with those fed GFP without rumen-protected AA supplementation. The goal of the present study was to investigate the effects of diets containing soybean meal (SBM) or canola meal (CM) with or without a source of RP-Met on production, nutrient digestibility, and N metabolism in cows fed 25% GFP. Sixteen mid-lactation Holstein cows were used in a replicated 4 × 4 Latin square with a 2 × 2 factorial arrangement of treatments (21-d periods). Cows were fed (DM basis) 35% corn silage, 14% grass-legume haylage, 25% GFP, and 11% SBM or 13.5% CM with or without 0.095% RP-Met supplementation as Smartamine M (Adisseo USA Inc., Alpharetta, GA). Protein source effects were observed for most production variables; cows fed diets containing CM plus GFP had greater DM intake, yields of milk and milk fat and true protein, and milk N efficiency than those offered SBM plus GFP. Feeding CM plus GFP also reduced the concentrations of milk urea N and plasma urea N, and the urinary excretion of NH3 N and urea N, suggesting improved N use efficiency. Moreover, replacing SBM with CM increased the concentrations of all essential AA (except Arg) in plasma collected from the coccygeal blood vessels. A protein source × RP-Met interaction was observed for the concentration of His in coccygeal plasma, with circulating His decreasing only when RP-Met was supplemented to the diet containing SBM plus GFP. Based on the arteriovenous difference method, Lys was the first limiting AA overall, with Met being the first limiting AA in diets that did not receive RP-Met. Apparent total-tract digestibilities of DM, organic matter, N, and acid detergent fiber increased with feeding SBM plus GFP versus CM plus GFP. Most variables were not affected by RP-Met supplementation, except plasma Met concentration, which increased by 63%. Collectively, our results indicate that CM appears to be a better companion rumen-degradable protein source to GFP than SBM, due to improved yields of milk and milk protein and N use efficiency.


Asunto(s)
Alimentación Animal , Bovinos/metabolismo , Dieta/veterinaria , Suplementos Dietéticos , Metionina/farmacología , Animales , Brassica napus , Industria Lechera , Femenino , Lactancia , Metionina/administración & dosificación , Leche , Proteínas de la Leche/metabolismo , Pisum sativum , Rumen/metabolismo , Glycine max/metabolismo
12.
J Dairy Sci ; 102(9): 8040-8058, 2019 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-31279546

RESUMEN

Kelp meal (KM) is a supplement made from the brown seaweed Ascophyllum nodosum, known to bioaccumulate iodine (I) and to be the richest source of phlorotannins, which can inhibit ruminal proteolysis and microbial growth. The objective of this study was to investigate the effects of KM on production, milk I, concentrations of blood metabolites, apparent total-tract digestibility of nutrients, and CH4 emissions in grazing dairy cows. Eight multiparous Jersey cows averaging (mean ± SD) 175 ± 60 d in milk and 12 primiparous Jersey cows averaging 142 ± 47 d in milk at the beginning of the study were assigned to either 0 g/d of KM (control diet, CTRL) or 113 g/d of KM (brown seaweed diet, BSW) in a randomized complete block design. Diets were formulated to yield a 70:30 forage-to-concentrate ratio and consisted of (dry matter basis): 48% cool-season perennial herbage and 52% partial TMR (pTMR). Each experimental period (n = 3) lasted 28 d, with data and sample collection taking place during the last 7 d of each period. Cows had approximately 16.5 h of access to pasture daily. Herbage dry matter intake increased, and total dry matter intake tended to increase in cows fed BSW versus the CTRL diet. Milk yield and concentrations and yields of milk components were not affected by diets. Similarly, blood concentrations of cortisol, glucose, fatty acids, and thyroxine did not change with feeding CTRL or BSW. However, a diet × period interaction was observed for milk I concentration; cows offered the BSW diet had greater milk I concentration during periods 1, 2, and 3, but the largest difference between BSW and CTRL was observed in period 2 (579 vs. 111 µg/L, respectively). Except for period 2, the concentration of milk I in cows fed KM did not exceed the 500 µg/L threshold recommended for human consumption. Diet × period interactions were also found for serum triiodothyronine concentration, total-tract digestibilities of crude protein and acid detergent fiber, CH4 production, and urinary excretion of purine derivatives. Overall, the lack of KM effects on milk yield and concentrations and yields of milk components indicate that dairy producers should consider costs before making KM supplementation decisions during the grazing season. Future research is needed to evaluate the concentration of I in retail organic milk because of the high prevalence of KM supplementation in northeastern and midwestern US organic dairies and possibly in other regions of the country.


Asunto(s)
Alimentación Animal , Ascophyllum , Bovinos/metabolismo , Suplementos Dietéticos , Yodo/metabolismo , Kelp , Leche/metabolismo , Alimentación Animal/análisis , Animales , Industria Lechera , Dieta/veterinaria , Fibras de la Dieta/metabolismo , Suplementos Dietéticos/análisis , Digestión , Ácidos Grasos/metabolismo , Femenino , Lactancia , Nutrientes , Distribución Aleatoria
13.
Animal ; 13(12): 2932-2938, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-31155019

RESUMEN

Vitamins play an essential role in broiler nutrition. They are fundamental for normal metabolic and physiological process, and their requirements for poultry are not fixed and can be affected by multiple factors. In contrast, mycotoxins are a challenging issue because they hinder performance and the immune system. Vitamin supplementation above minimum requirements would permit improvement in productive potential, health, bone and meat quality in a situation of mycotoxin challenge. The objective of this study was to determine the influence of optimum vitamin nutrition in diets contaminated with aflatoxin in broilers from 1 to 44 days of age. A total of 1800 Cobb 500 male chicks were randomized to 15 sets of eight treatment groups, each containing 15 birds using a 2 × 2 × 2 factorial design (commercial vitamin levels and high vitamin levels, two levels of aflatoxin - 0 and 0.5 ppm with binder levels of 0 and 10 000 mg/kg). The mash diets were corn and soybean meal based, formulated according to commercial practices. Feed intake, weight gain and feed conversion were analyzed for birds from 1 to 44 days of age. To determine carcass characteristics (carcass yield, breast yield and leg yield) and black bone syndrome, two birds were slaughtered from each group at 45 days. Other analyses included breast tenderness, water loss by dripping and malonaldehyde concentrations. The results demonstrated that broilers that were fed high levels of vitamins showed better weight gain, feed conversion, carcass yield and breast yield than broilers that were fed diets with commercial vitamin levels (P < 0.05); also, broilers that were fed diets containing 0.5 ppm aflatoxin had lower weight gain, carcass yield and breast yield (P < 0.05). The use of 10 000 mg/kg of binder improved (P < 0.05) feed conversion throughout the rearing period. We conclude that aflatoxin negatively affects performance and carcass yield; however, feeding optimum vitamin nutrition improved these performance traits.


Asunto(s)
Aflatoxinas/efectos adversos , Enfermedades Óseas/veterinaria , Pollos , Carne/análisis , Enfermedades de las Aves de Corral/epidemiología , Vitaminas/metabolismo , Aflatoxinas/administración & dosificación , Alimentación Animal/análisis , Fenómenos Fisiológicos Nutricionales de los Animales , Animales , Enfermedades Óseas/epidemiología , Enfermedades Óseas/etiología , Brasil/epidemiología , Pollos/crecimiento & desarrollo , Pollos/fisiología , Dieta/veterinaria , Suplementos Dietéticos/análisis , Masculino , Enfermedades de las Aves de Corral/etiología , Distribución Aleatoria , Vitaminas/administración & dosificación
14.
J Dairy Sci ; 102(2): 1294-1311, 2019 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-30591336

RESUMEN

Flaxseed has been extensively used as a supplement for dairy cows because of its high concentrations of energy and the n-3 fatty acid (FA) cis-9,cis-12,cis-15 18:3. However, limited information is available regarding the effect of ground flaxseed on dry matter intake (DMI), ruminal fermentation, and nutrient utilization in grazing dairy cows. Twenty multiparous Jersey cows averaging (mean ± standard deviation) 111 ± 49 d in milk in the beginning of the study were used in a randomized complete block design to investigate the effects of supplementing herbage (i.e., grazed forage) with ground corn-soybean meal mix (control diet = CTRL) or ground flaxseed (flaxseed diet = FLX) on animal production, milk FA, ruminal metabolism, and nutrient digestibility. The study was conducted from June to September 2013, with data and sample collection taking place on wk 4, 8, 12, and 16. Cows were fed a diet formulated to yield a 60:40 forage-to-concentrate ratio consisting of (dry matter basis): 40% cool-season perennial herbage, 50% partial total mixed ration, and 10% of ground corn-soybean meal mix or 10% ground flaxseed. However, estimated herbage DMI averaged 5.59 kg/d or 34% of the total DMI. Significant treatment by week interactions were observed for milk and blood urea N, and several milk FA (e.g., trans-10 18:1). No significant differences between treatments were observed for herbage and total DMI, milk yield, feed efficiency, concentrations and yields of milk components, and urinary excretion of purine derivatives. Total-tract digestibility of organic matter decreased, whereas that of neutral detergent fiber increased with feeding FLX versus CTRL. No treatment effects were observed for ruminal concentrations of total volatile FA and NH3-N, and ruminal proportions of acetate and propionate. Ruminal butyrate tended to decrease, and the acetate-to-propionate ratio decreased in the FLX diet. Most saturated and unsaturated FA in milk fat were changed. Specifically, milk proportion of cis-9,cis-12,cis-15 18:3, Σn-3 FA, and Σ18C FA increased, whereas that of cis-9,cis-12 18:2, Σn-6 FA, Σ odd-chain FA, Σ<16C FA, and Σ16C FA decreased with feeding FLX versus the CTRL diet. In conclusion, feeding FLX did not change yields of milk and milk components, but increased milk n-3 FA. Therefore, costs and industry adoption of premiums for n-3-enriched milk will determine the adoption of ground flaxseed in pasture-based dairy farms.


Asunto(s)
Bovinos/metabolismo , Ácidos Grasos/análisis , Lino , Lactancia/fisiología , Leche/química , Nutrientes/metabolismo , Alimentación Animal/análisis , Animales , Dieta/veterinaria , Suplementos Dietéticos , Digestión , Ácidos Grasos Omega-3/administración & dosificación , Ácidos Grasos Omega-3/análisis , Ácidos Grasos Volátiles/metabolismo , Femenino , Fermentación , Lino/metabolismo , Rumen/metabolismo , Glycine max/metabolismo
15.
J Clin Psychol ; 75(3): 562-573, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-30431650

RESUMEN

OBJECTIVES: We aimed to explore associations between positive and negative symptoms, mindfulness, positive affect, and social safeness; and to understand the mediator role of positive emotions in the relationship between mindfulness and social safeness. METHOD: Fifty-six participants with a psychotic disorder were assessed with measures of mindfulness, negative and positive symptoms, positive affect, and social safeness. RESULTS: All variables were associated with each other except for positive symptoms and active affect. Mindfulness predicted social safeness through safe affect, when controlling for positive and negative symptoms. CONCLUSIONS: This study contributes to knowledge of mechanisms behind social safeness adding the role of mindfulness and activation of positive emotions. The continuing study of mindfulness as an important mechanism for social safeness will allow further improvement of interventions for psychosis.


Asunto(s)
Afecto/fisiología , Atención Plena , Trastornos Psicóticos/fisiopatología , Medio Social , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Percepción Social , Adulto Joven
16.
Mol Divers ; 21(4): 809-820, 2017 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-28924942

RESUMEN

Pelargonium sidoides DC (Geraniaceae) is a medicinal plant indigenous to Southern Africa that has been widely evaluated for its use in the treatment of upper respiratory tract infections. In recent studies, the anti-proliferative potential of P. sidoides was shown, and several phenolic compounds were identified as the bioactive compounds. Little, however, is known regarding their anti-proliferative protein targets. In this study, the anti-proliferative mechanisms of P. sidoides through in silico target identification and network pharmacology methodologies were evaluated. The protein targets of the 12 phenolic compounds were identified using the target identification server PharmMapper and the server for predicting Drug Repositioning and Adverse Reactions via the Chemical-Protein Interactome (DRAR-CPI). Protein-protein and protein-pathway interaction networks were subsequently constructed with Cytoscape 3.4.0 to evaluate potential mechanisms of action. A total of 142 potential human target proteins were identified with the in silico target identification servers, and 90 of these were found to be related to cancer. The protein interaction network was constructed from 86 proteins involved in 209 interactions with each other, and two protein clusters were observed. A pathway enrichment analysis identified over 80 Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways enriched with the protein targets and included several pathways specifically related to cancer as well as various signaling pathways that have been found to be dysregulated in cancer. These results indicate that the anti-proliferative activity of P. sidoides may be multifactorial and arises from the collective regulation of several interconnected cell signaling pathways.


Asunto(s)
Antineoplásicos/farmacología , Simulación por Computador , Pelargonium/química , Extractos Vegetales/farmacología , Antineoplásicos/química , Proliferación Celular/efectos de los fármacos , Terapia Molecular Dirigida , Extractos Vegetales/química , Mapeo de Interacción de Proteínas , Transducción de Señal/efectos de los fármacos
17.
J Dairy Sci ; 100(8): 6239-6255, 2017 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-28601445

RESUMEN

Previous research has shown that cows fed ≥24% of the diet dry matter (DM) as field peas decreased milk yield as well as concentration and yield of milk protein, possibly due to reduced DM intake and limited supply of Lys and Met. Twelve multiparous and 4 primiparous lactating Holstein cows were randomly assigned to 1 of 4 diets in a replicated 4 × 4 Latin square design. The diets contained (DM basis) 34.8% corn silage, 15.2% grass-legume silage, 5.9% roasted soybean, 2.4% mineral-vitamin premix, 2.0% alfalfa pellets, and either (1) 36% ground corn, 2.4% soybean meal, and 1.3% urea (UR), (2) 29.7% ground corn, 9.8% soybean meal, 0.13% ruminally protected (RP) Lys, and 0.07% RP-Met (CSBAA), (3) 25% ground field peas, 12.3% ground corn, and 2.4% soybean meal (FP), or (4) FP supplemented with 0.15% RP-Lys and 0.05% RP-Met (FPAA). Our objective was to test the effects of FP versus UR, FPAA versus CSBAA, and FPAA versus FP on milk yield and composition, N utilization, nutrient digestibility, ruminal fermentation profile, and plasma concentration of AA. Milk yield did not differ across diets. Compared with cows fed UR, those fed FP had greater DM intake, concentration and yield of milk true protein, apparent total-tract digestibility of fiber, urinary excretion of purine derivatives, and concentrations of total volatile fatty acids in the rumen and Lys in plasma, and less milk urea N and ruminal NH3-N. The concentration of milk urea N, as well as the concentration and yield of milk fat increased in cows fed FPAA versus CSBAA. Moreover, cows fed FPAA had greater ruminal concentration of total volatile fatty acids, increased proportions of acetate and isobutyrate, and decreased proportions of propionate and valerate than those fed CSBAA. The plasma concentrations of His, Leu, and Phe decreased, whereas plasma Met increased and plasma Lys tended to increase in cows fed FPAA versus CSBAA. Concentration of milk true protein, but not yield, was increased in cows fed FPAA versus FP. However, cows fed FPAA showed decreased concentrations of His and Leu in plasma compared with those fed FP. Overall, compared with the CSBAA diet, feeding FPAA did not negatively affect milk yield and milk protein synthesis. Furthermore, RP-Lys and RP-Met supplementation of the FP diet did not improve milk yield or milk protein synthesis, but decreased urinary urea N excretion.


Asunto(s)
Bovinos/metabolismo , Nitrógeno/metabolismo , Pisum sativum , Rumen/metabolismo , Alimentación Animal , Fenómenos Fisiológicos Nutricionales de los Animales , Animales , Dieta , Femenino , Fermentación , Lactancia , Lisina/administración & dosificación , Metionina/administración & dosificación , Leche , Zea mays
18.
Tech Coloproctol ; 21(4): 287-293, 2017 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-28439675

RESUMEN

BACKGROUND: Low anterior resection for rectal cancer often results in severe bowel dysfunction, specifically low anterior resection syndrome (LARS), with symptoms such as incontinence, urgency, and frequent bowel movements. Percutaneous tibial nerve stimulation (PTNS) resulted in a high rate of success in patients with fecal incontinence. The aim of this study was to evaluate the effectiveness of treatment with PTNS in LARS and to identify predictors of the outcome of the technique. METHODS: The study was conducted from May 2012 to April 2015 at the Alvaro Cunqueiro Hospital, University Hospital Complex of Vigo, Spain. Ten patients with LARS were recruited consecutively. All patients underwent 2 sessions per week (30 min each one) for 6 weeks. Patients were followed for 3 weeks, and those who had a significant clinical improvement were recruited to a second phase of PTNS. Some patients presenting with relapse during follow-up underwent an additional phase of PTNS. Outcome measures included Wexner scores, quality of life scores, and urgency of defecation. RESULTS: Three patients did not complete the treatment due to poor response in the first phase. Incontinence was reduced in the remaining seven of ten patients. The median Wexner score at initial patient evaluation was 14 (IQR 10.75-18.5), which decreased to 10 (IQR 6.5-18) after treatment (p = 0.034). A statistically significant improvement was demonstrated in quality of life scale, lifestyle, depression, and daily defecation urgency (p < 0.05). LARS Score improvement was observed in five patients (50%) with a total resolution of LARS in 2 (20%). CONCLUSIONS: PTNS is an ambulatory treatment that could play an important role in the context of a multimodal treatment approach in patients with LARS. It could be a first-line treatment to identify non-responders to conservative management who need different and more invasive treatments.


Asunto(s)
Procedimientos Quirúrgicos del Sistema Digestivo/efectos adversos , Terapia por Estimulación Eléctrica/métodos , Complicaciones Posoperatorias , Enfermedades del Recto/terapia , Recto/cirugía , Nervio Tibial , Anciano , Defecación , Femenino , Humanos , Masculino , Persona de Mediana Edad , Proyectos Piloto , Calidad de Vida , Enfermedades del Recto/etiología , Neoplasias del Recto/cirugía , Recto/fisiopatología , Encuestas y Cuestionarios , Síndrome , Resultado del Tratamiento
19.
J Appl Microbiol ; 122(4): 900-910, 2017 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-28055127

RESUMEN

AIMS: The aim of this work was to evaluate the efficacy and safety of Lippia origanoides essential oil as a preservative in industrial products. METHODS AND RESULTS: The composition, antimicrobial activity, mutagenic and toxic potential of L. origanoides were determined. Then, the effect of essential oil as a preservative in food, cosmetics and pharmaceutical products was evaluated. The essential oil of L. origanoides consisted mainly of oxygenated monoterpenes (38·13%); 26·28% corresponded to the compound carvacrol. At concentrations ranging from 0·312 to 1·25 µl ml-1 and in association with polysorbate 80, the essential oil of L. origanoides inhibited the growth of all the tested micro-organisms. The medium lethal dose in mice was 3·5 g kg-1 , which categorizes it as nontoxic according to the European Union criteria, and negative results in the Ames test indicated that this oil was not mutagenic. In combination with polysorbate 80, the essential oil exerted preservative action on orange juice, cosmetic and pharmaceutical compositions, especially in the case of aqueous-based products. CONCLUSIONS: Lippia origanoides essential oil is an effective and safe preservative for orange juice, pharmaceutical and cosmetic products. SIGNIFICANCE AND IMPACT OF THE STUDY: This study allowed for the complete understanding of the antimicrobial action and toxicological potential of L. origanoides essential oil. These results facilitate the development of a preservative system based on L. origanoides essential oil.


Asunto(s)
Cosméticos , Conservantes de Alimentos/farmacología , Lippia/química , Aceites Volátiles/farmacología , Conservadores Farmacéuticos/farmacología , Animales , Antiinfecciosos/química , Antiinfecciosos/farmacología , Cimenos , Conservantes de Alimentos/química , Conservantes de Alimentos/toxicidad , Ratones , Monoterpenos/química , Aceites Volátiles/química , Aceites Volátiles/toxicidad , Excipientes Farmacéuticos/química , Excipientes Farmacéuticos/farmacología , Excipientes Farmacéuticos/toxicidad , Aceites de Plantas/química , Aceites de Plantas/farmacología , Aceites de Plantas/toxicidad , Conservadores Farmacéuticos/química , Conservadores Farmacéuticos/toxicidad
20.
Ecotoxicol Environ Saf ; 133: 164-75, 2016 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-27448957

RESUMEN

At Vila Pouca de Aguiar area, northern Portugal, crops out a post-tectonic Variscan granite pluton, related with the Régua-Vila Real-Verín fault zone, comprising three types of biotite granites. Among these granites, PSG granite yield the highest average contents of U, probably due to its enrichment in accessory U-bearing minerals such as zircon. In the proximity of faults and joints, these granites are often affected by different degrees of hydrothermal alteration, forming reddish altered rocks, commonly known as "episyenites". These altered rocks are probably associated to the occurrence of hydrothermal processes, which led to uranium enrichment in the most advanced stages of episyenitization. In these granites, both average gamma absorbed dose rates in outdoor and indoor air are higher than those of the world average. Furthermore, even in the worst usage scenario, all these granites can be used as a building material, since their annual effective doses are similar to the limit defined by the European Commission. The geometric mean of radon activity of 91 dwellings located at the Vila Pouca de Aguiar pluton is 568Bqm(-3), exceeding that of other northern Portuguese granites. Measurements carried out during a winter season, indicate that 62.6% of the analysed dwellings yield higher indoor radon average values than the Portuguese legislation limit (400Bqm(-3)), and annual effective doses due higher than the world's average value (1.2mSvy(-1)). The interaction of geogenic, architectural and anthropogenic features is crucial to explain the variance in the geometric mean of radon activity of dwellings from Vila Pouca de Aguiar pluton, but the role of geologic faults is probably the most important decisive factor to increase the indoor radon concentration in dwellings. Hence, the development of awareness campaigns in order to inform population about the incurred radiological risks to radon exposure are highly recommended for this specific area.


Asunto(s)
Contaminantes Radiactivos del Aire/análisis , Contaminación del Aire Interior/análisis , Materiales de Construcción , Radón/análisis , Dióxido de Silicio , Silicatos de Aluminio , Materiales de Construcción/efectos adversos , Compuestos Ferrosos , Portugal , Potasio/análisis , Estaciones del Año , Espectrometría gamma , Torio/análisis , Uranio/análisis
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