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1.
Exp Appl Acarol ; 68(1): 39-53, 2016 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-26530991

RESUMEN

Typhlodromus pyri Scheuten and Euseius finlandicus (Oudemans) are important predators of phytophagous mites. The present laboratory study aimed to determine whether both species can develop and reach maturity feeding on spider mites occurring on willows, i.e., Schizotetranychus schizopus (Zacher), Schizotetranychus garmani Pritchard & Baker, and Tetranychus urticae Koch, and on Brassica napus L. pollen. The predators' development, reproduction and demographic parameters were significantly affected by diet. The data suggest that rape pollen can be useful in mass rearing of E. finlandicus but is completely unsuitable as alternative food for T. pyri. Short development time and high values of population parameters achieved by T. pyri feeding on larvae and protonymphs of S. schizopus and by E. finlandicus feeding on juvenile stages of S. garmani indicate great suitability of these preys as food for the phytoseiids, and make both predatory species promising biocontrol agents in spider mite control on willows.


Asunto(s)
Dieta , Ácaros/fisiología , Control Biológico de Vectores , Conducta Predatoria , Control de Ácaros y Garrapatas , Animales , Brassica/química , Ácaros/crecimiento & desarrollo , Polen/química , Reproducción , Salix/crecimiento & desarrollo , Tetranychidae/fisiología
2.
Exp Appl Acarol ; 63(3): 349-60, 2014 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-24578046

RESUMEN

The biology of Phyllocoptes adalius Keifer (Acari: Eriophyoidea) and influence of insemination on female fecundity and longevity were studied. The experiment was conducted at a constant temperature of 25 ± 0.5 °C, 70-80 % RH and 16-h photoperiod. A modified method of mite rearing on detached leaves in closed cells was successfully applied and demonstrated to be efficient for biological studies of eriophyoids. Survival and development duration of the immature stages, as well as fecundity of female and longevity of adults, were calculated. The longest time of development was observed for eggs, which was almost twice as long as that for larvae and nymphs. Egg-to-adult development did not significantly differ between males and females. Survival rate for the immature stages was highest for nymphs (98.2 %), exceeding 86.2 % for overall pre-adult stages. Life table parameters of P. adalius were estimated as follows: mean generation time (T), 15.8 days; doubling time (Dt), 3.3 days; net reproductive rate (R0), 27.8 female eggs/female; the intrinsic rate of natural increase (r m ), 0.21 female eggs/female/day; the finite rate of increase (λ), 1.23 female eggs/female/day; and sex ratio (proportion females), 0.82. Our studies indicate that P. adalius has the potential for rapid population increase, becoming one of the most important rose mite species.


Asunto(s)
Estadios del Ciclo de Vida , Ácaros/crecimiento & desarrollo , Animales , Femenino , Fertilidad , Inseminación , Longevidad , Masculino , Ácaros/fisiología , Oviposición , Control Biológico de Vectores , Densidad de Población , Razón de Masculinidad , Temperatura , Factores de Tiempo
3.
Exp Appl Acarol ; 63(4): 497-520, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24711065

RESUMEN

Eriophyoid species belonging to the genus Trisetacus are economically important as pests of conifers. A narrow host specialization to conifers and some unique morphological characteristics have made these mites interesting subjects for scientific inquiry. In this study, we assessed morphological and genetic variation of seven Trisetacus species originating from six coniferous hosts in Poland by morphometric analysis and molecular sequencing of the mitochondrial cytochrome oxidase subunit I gene and the nuclear D2 region of 28S rDNA. The results confirmed the monophyly of the genus Trisetacus as well as the monophyly of five of the seven species studied. Both DNA sequences were effective in discriminating between six of the seven species tested. Host-dependent genetic and morphological variation in T. silvestris and T. relocatus, and habitat-dependent genetic and morphological variation in T. juniperinus were detected, suggesting the existence of races or even distinct species within these Trisetacus taxa. This is the first molecular phylogenetic analysis of the Trisetacus species. The findings presented here will stimulate further investigations on the evolutionary relationships of Trisetacus as well as the entire Phytoptidae family.


Asunto(s)
Ácaros y Garrapatas/genética , Variación Genética/genética , Filogenia , Tracheophyta/parasitología , Ácaros y Garrapatas/ultraestructura , Secuencia de Aminoácidos , Animales , Secuencia de Bases , ADN/química , ADN/genética , Análisis Discriminante , Complejo IV de Transporte de Electrones/química , Complejo IV de Transporte de Electrones/genética , Femenino , Microscopía de Contraste de Fase , Datos de Secuencia Molecular , Polonia , Reacción en Cadena de la Polimerasa , ARN Ribosómico 28S/química , ARN Ribosómico 28S/genética , Alineación de Secuencia , Análisis de Secuencia de ADN
4.
Sci Rep ; 14(1): 10273, 2024 05 04.
Artículo en Inglés | MEDLINE | ID: mdl-38704403

RESUMEN

Many people in the advanced stages of dementia require full-time caregivers, most of whom are family members who provide informal (non-specialized) care. It is important to provide these caregivers with high-quality information to help them understand and manage the symptoms and behaviors of dementia patients. This study aims to evaluate ChatGPT, a chatbot built using the Generative Pre-trained Transformer (GPT) large language model, in responding to information needs and information seeking of such informal caregivers. We identified the information needs of dementia patients based on the relevant literature (22 articles were selected from 2442 retrieved articles). From this analysis, we created a list of 31 items that describe these information needs, and used them to formulate 118 relevant questions. We then asked these questions to ChatGPT and investigated its responses. In the next phase, we asked 15 informal and 15 formal dementia-patient caregivers to analyze and evaluate these ChatGPT responses, using both quantitative (questionnaire) and qualitative (interview) approaches. In the interviews conducted, informal caregivers were more positive towards the use of ChatGPT to obtain non-specialized information about dementia compared to formal caregivers. However, ChatGPT struggled to provide satisfactory responses to more specialized (clinical) inquiries. In the questionnaire study, informal caregivers gave higher ratings to ChatGPT's responsiveness on the 31 items describing information needs, giving an overall mean score of 3.77 (SD 0.98) out of 5; the mean score among formal caregivers was 3.13 (SD 0.65), indicating that formal caregivers showed less trust in ChatGPT's responses compared to informal caregivers. ChatGPT's responses to non-clinical information needs related to dementia patients were generally satisfactory at this stage. As this tool is still under heavy development, it holds promise for providing even higher-quality information in response to information needs, particularly when developed in collaboration with healthcare professionals. Thus, large language models such as ChatGPT can serve as valuable sources of information for informal caregivers, although they may not fully meet the needs of formal caregivers who seek specialized (clinical) answers. Nevertheless, even in its current state, ChatGPT was able to provide responses to some of the clinical questions related to dementia that were asked.


Asunto(s)
Cuidadores , Demencia , Conducta en la Búsqueda de Información , Humanos , Demencia/terapia , Demencia/psicología , Cuidadores/psicología , Femenino , Masculino , Encuestas y Cuestionarios , Anciano , Persona de Mediana Edad , Evaluación de Necesidades
5.
Sci Rep ; 14(1): 6672, 2024 03 20.
Artículo en Inglés | MEDLINE | ID: mdl-38509150

RESUMEN

Soybean, belonging to legumes, has a specific ability to biological nitrogen fixation, which can be reinforced by seeds inoculation. However, support with a starter dose of mineral nitrogen fertilizer may be necessary to achieve high seed yields. A four-year field experiment was conducted to determine the effect of mineral N fertilization (0, 30, 60 kg ha-1), seed inoculation with two commercial inoculants and combinations of these treatments on yield components and yielding of soybean in conditions of south-western part of Poland. The synergistic effect of mineral fertilization at dose 30 kg ha-1 and inoculation on soybean productivity was the most beneficial. Similar effects were observed when 60 kg N ha-1 was applied both separately and with inoculation. However, due to the environmental impact of mineral fertilizers and to promote plants to biological nitrogen fixation (BNF), it is advisable to use lower doses of N fertilizer (at 30 kg ha-1) and inoculate soybean seeds in agro- climatic conditions of south-western Poland. Therefore, based on this study we recommend to apply starter dose of N and inoculation.


Asunto(s)
Glycine max , Nitrógeno , Fertilizantes , Polonia , Semillas , Minerales , Fertilización
6.
Exp Appl Acarol ; 61(1): 53-67, 2013 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-23640712

RESUMEN

Parasitus bituberosus Karg (Acari: Parasitidae) is one of the predatory mite species inhabiting mushroom houses. It is known to accept a wide range of prey, suggesting that it may be a promising candidate for the biological control of key pests of mushroom culture. In our study it did not show any prey preference among four groups of small organisms often occurring in mushroom growth medium, namely rhabditid nematodes, pygmephorid mites, and sciarid and phorid fly larvae. Nevertheless, the type of food these predators fed on affects their development. The shortest egg-to-adult development time was obtained on a nematode diet. On a diet of phorid larvae, mite development stopped at the deutonymph stage; none reached adulthood. All other diets sufficed to reach the adult phase. Female fecundity when fed nematodes and sciarid larvae did not differ, but it was much lower when fed pygmephorid mites. Other life table parameters confirmed that pygmephorid mites constituted the worst diet for P. bituberosus. The highest intrinsic rate of population increase (r m = 0.34) was obtained on the nematode diet; when fed sciarid larvae and pygmephorid mites it was 0.25 and 0.14, respectively. Our study provides good reasons to further test P. bituberosus as biocontrol agent of especially sciarid flies and nematodes, especially when the compost is well colonized by mushroom mycelium (which retards nematode growth).


Asunto(s)
Tablas de Vida , Ácaros/fisiología , Conducta Predatoria , Animales , Femenino , Fertilidad , Preferencias Alimentarias , Larva/crecimiento & desarrollo , Masculino , Ácaros/crecimiento & desarrollo , Control Biológico de Vectores , Densidad de Población , Factores de Tiempo
7.
Environ Monit Assess ; 185(7): 5823-36, 2013 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-23142878

RESUMEN

Visitor's access to understorey vegetation in park forest stands results in the impoverishment of plant species composition and a reduction in habitat quality. The phenomenon of biotic homogenisation is typical in urban landscapes, but it can proceed differently depending on the scale, a detail that has not been observed in previous studies. This research was carried out in seven Warsaw parks (both public and restricted access). Thirty-four forested areas were randomly selected, some subjected to strong visitors' pressure and some within restricted access areas, free of such impacts. The latter category included woodlands growing in old forest and secondary habitats. Public access to the study areas contributed to the disappearance of some forest species and their replacement by cosmopolitan non-forest species, leading to loss of floristic biodiversity in areas of high ecological importance at the city scale. Some human-induced factors, including soil compaction and changes in soil pH, moisture and capillary volume, were found to cause habitat changes that favoured native non-forest plants. Despite changes in species composition, the taxonomic similarity of understorey vegetation in both categories--public access and restricted access--was comparable. In a distance gradient of measurements taken around selected individual trees, there was found to be significant variation (in light, soil pH and compaction) affecting the quality and quantity of understorey vegetation (including rare species). In conclusion, the protection of rare forest species could be achieved by limiting access to forested areas, particularly in old forest fragments, and we highly recommend its consideration in the proposal of future park restoration plans.


Asunto(s)
Biodiversidad , Conservación de los Recursos Naturales/métodos , Ecosistema , Plantas , Recreación , Árboles , Humanos , Polonia
8.
Zootaxa ; 3646: 349-85, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-26213770

RESUMEN

Three poorly known species of the subfamily Eriophyinae living on Tilia spp. (Tiliaceae) are illustrated and supplementary descriptions are provided. Two of them, Eriophyes exilis (Nalepa 1892) and Eriophyes nervalis (Nalepa 1918), were recorded both in vein angle galls on leaves of Tilia platyphyllos Scop. and in erinea on leaves of Tilia tomentosa Moench, Tilia americana L. 'Moltkei', Tilia americana var. heterophylla (Vent.) Loudon, Tilia cordata Mill., Tiliajaponica (Miq.) Simonk., Tilia petiolaris DC. and Tilia zamoyskiana Wr6bl. The third species, Eriophyes tiliae Nalepa 1890, was found in nail galls on leaves of T platyphyllos, T americana and T. cordata. All of these Eriophyes species showed noticeable morphological differences between protogyne and deutogyne females in terms of the number of dorsal annuli, location of setae d, length of setae e and 3a, distance between tubercles 3a and the length and pattern of the prodorsal shield. Based on a comparative morphological analysis of this original data with that published by A. Nalepa, new synonyms for the following species are proposed: Erophyes exilis (Nalepa) = Eriophyes leiosoma Nalepa syn. nov.; Eriophyes nervalis (Nalepa) = Eriophyes tiliaceus Nalepa syn. nov., Eriophyes tiliae Nalepa = Eriophyes rudis Nalepa syn. nov. = Eriophyes tomentosae Nalepa syn. nov. A key to all studied Eriophyes species living on lime trees is included.


Asunto(s)
Ácaros/anatomía & histología , Ácaros/clasificación , Tilia/parasitología , Animales , Femenino , Masculino , Ninfa/anatomía & histología
9.
Stud Health Technol Inform ; 289: 128-131, 2022 Jan 14.
Artículo en Inglés | MEDLINE | ID: mdl-35062108

RESUMEN

Many national governments have attempted to prevent and combat COVID-19 using mobile health (mHealth) technologies during the epidemic. During this time, governments began developing smartphone-based apps for prevention, call tracking, and monitoring people with COVID-19. An important question is, does everyone benefit from these technologies equally and fairly? To answer this question, we evaluated the user interface of smartphone-based apps developed during the COVID-19 era by considering their design for older adults, in order to determine whether social justice has been considered in the development of these apps.


Asunto(s)
COVID-19 , Aplicaciones Móviles , Telemedicina , Anciano , Heurística , Humanos , SARS-CoV-2 , Teléfono Inteligente
10.
Stud Health Technol Inform ; 289: 178-179, 2022 Jan 14.
Artículo en Inglés | MEDLINE | ID: mdl-35062121

RESUMEN

This paper shows that the MDA framework can be helpful for designing and implementing FAIR principles. We reached this conclusion based on a focus group interview with six experts, during which we focused on the three MDA components: mechanics, dynamics and aesthetics.


Asunto(s)
Grupos Focales
11.
JMIR Form Res ; 6(9): e39718, 2022 Sep 13.
Artículo en Inglés | MEDLINE | ID: mdl-36054441

RESUMEN

BACKGROUND: Mobile apps have been shown to play an important role in the management, care, and prevention of infectious diseases. Thus, skills for self-care-one of the most effective ways to prevent illness-can be improved through mobile health apps. OBJECTIVE: This study aimed to design, develop, and evaluate an educational mobile-based self-care app in order to help the self-prevention of COVID-19 in underdeveloped countries. We intended the app to be easy to use, quick, and inexpensive. METHODS: In 2020 and 2021, we conducted a methodological study. Using the ADDIE (analysis, design, development, implementation, and evaluation) educational model, we developed a self-care management mobile app. According to the ADDIE model, an effective training and performance support tool is built through the 5 phases that comprise its name. There were 27 participants who conducted 2 evaluations of the mobile app's usability and impact using the mobile health app usability and self-care inventory scales. The study design included pre- and posttesting. RESULTS: An Android app called MyShield was developed. The results of pre- and posttests showed that on a scale from 0 to 5, MyShield scored a performance average of 4.17 in the physical health dimension and an average of 3.88 in the mental well-being dimension, thereby showing positive effects on self-care skills. MyShield scored highly on the "interface and satisfaction," "ease of use," and "usefulness" components. CONCLUSIONS: MyShield facilitates learning self-care skills at home, even during quarantine, increasing acquisition of information. Given its low development cost and the ADDIE educational design on which it is based, the app can be helpful in underdeveloped countries. Thus, low-income countries-often lacking other tools-can use the app as an effective tool for fighting COVID-19, if it becomes a standard mobile app recommended by the government.

12.
Sci Rep ; 12(1): 1914, 2022 02 03.
Artículo en Inglés | MEDLINE | ID: mdl-35115562

RESUMEN

Plants employ different chemicals to protect themselves from herbivory. These defenses may be constitutive or triggered by stress. The chemicals can be toxic, act as repellents, phagosuppressants and/or phago-deterrents. The two-spotted spider mite (Tetranychus urticae) is a generalist arthropod herbivorous pest and its feeding causes extensive damage both to crops and wild plants. Cyclotides are cyclic peptides involved in host-plant defenses. A single Viola sp. can produce more than a hundred cyclotides with different biological activities and roles. The organ and tissue specific cyclotide patterns change over the seasons and/or with environment, but the role of biotic/abiotic stress in shaping them remains unclear. Here, we demonstrate the involvement of cyclotides in mutual interactions between violets and mites. We used immunohistochemistry and mass spectrometry imaging to show the ingested cyclotides in T. urticae and assess the Viola odorata response to mite feeding. Moreover, to assess how mites are affected by feeding on violets, acceptance and reproductive performance was compared between Viola uliginosa, V. odorata and Phaseolus vulgaris. We demonstrate that cyclotides had been taken in by mites feeding on the violets. The ingested peptides were found in contact with epithelial cells of the mite digestive system, in the fecal matter, feces, ovary and eggs. Mites preferred common bean plants (P. vulgaris) to any of the violet species; the latter affected their reproductive performance. The production of particular cyclotides in V. odorata (denoted by molecular weights: 2979, 3001, 3017, 3068, 3084, 3123) was activated by mite feeding and their levels were significantly elevated compared to the control after 5 and 21 days of infestation. Specific cyclotides may affect mites by being indigestible or through direct interaction with cells in the mite digestive tract and reproductive organs. A group of particular peptides in V. odorata appears to be involved in defense response against herbivores.


Asunto(s)
Ciclotidas/metabolismo , Herbivoria , Phaseolus/parasitología , Tetranychidae/patogenicidad , Viola/parasitología , Animales , Digestión , Interacciones Huésped-Parásitos , Phaseolus/metabolismo , Especificidad de la Especie , Tetranychidae/metabolismo , Factores de Tiempo , Distribución Tisular , Viola/metabolismo
13.
Physiol Plant ; 141(3): 197-200, 2011 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-21091491

RESUMEN

Causal inference methods--mainly path analysis and structural equation modeling--offer plant physiologists information about cause-and-effect relationships among plant traits. Recently, an unusual approach to causal inference through stepwise variable selection has been proposed and used in various works on plant physiology. The approach should not be considered correct from a biological point of view. Here, it is explained why stepwise variable selection should not be used for causal inference, and shown what strange conclusions can be drawn based upon the former analysis when one aims to interpret cause-and-effect relationships among plant traits.


Asunto(s)
Modelos Estadísticos , Modelos Teóricos , Fenómenos Fisiológicos de las Plantas , Plantas/genética
14.
Insects ; 12(6)2021 May 25.
Artículo en Inglés | MEDLINE | ID: mdl-34070650

RESUMEN

Blackcurrant leaf midge (Dasineura tetensi) is a widespread pest of blackcurrant. Attacks by this pest can cause up to 60% reduction in the growth of shoots resulting in yield decreases. Our study, conducted (2012-2014) in Poland, aimed to assess the susceptibility of blackcurrant genotypes to D. tetensi, in order to select genotypes as parental lines for breeding new blackcurrant genotypes. Among tested blackcurrant genotypes, none were found to be completely resistant to this pest. The pest colonized genotypes Big Ben, Nr 8/72, Ben Connan, Ben Alder, Ben Hope, Foxendown, Ben Nevis, Fariegh, Ojebyn, and Ben Tirran below the threshold level (10%). In contrast, genotypes Nr 7/15, Ben Lomond, Ben Finlay, Tisel, Polares, Polonus, Tiben, PC-110, Polben, Gofert, Ruben, and Ores suffered pest levels above the threshold. With regard to egg numbers, the fewest were recorded on genotypes Big Ben, Ben Connan, Ben Alder, and Ben Nevis, and the most on Gofert and Ores. Fewer larvae were recorded on genotypes Big Ben, Nr 8/72, Ben Connan, and Foxendown compared to Ben Lomond, PC-110, Gofert, Tiben, Polben, and Ores. Developing blackcurrant genotype resistance to leaf midge strongly supports the IPM strategy.

15.
Insects ; 12(8)2021 Jul 21.
Artículo en Inglés | MEDLINE | ID: mdl-34442230

RESUMEN

Development, survival and reproduction of Ambyseius andersoni (Chant), a predatory mite widely distributed in Europe, were assessed on different food items. These included two key pests of ornamental coniferous plants, i.e., Oligonychus ununguis (Jacobi) and Pentamerismus taxi (Haller) and pollen of Pinus sylvestris L. The rationale behind these experiments was to provide a preliminary assessment of the potential of A. andersoni as a biocontrol agent of the above phytophagous arthropods and evaluate pine pollen as an alternative food source for the predator. Under laboratory conditions (23 ± 0.5 °C, 70 ± 10% RH and 16L:8D) A. andersoni was able to feed, develop and reproduce on all tested diets. The shortest development time (egg to female) was obtained when the predator fed on P. taxi (mean = 5.12 d) and the longest was on pine pollen (mean = 6.55 d). The rm value was significantly higher on both tested prey (0.166 on P. taxi and 0.160 on O. ununguis) than on pollen (0.139). Thus, we do not recommend pine pollen for mass rearing of A. andersoni; however, we conclude that pollen may provide sufficient sustenance for the predator population under field conditions when prey are absent. The potential of A. andersoni as a biocontrol agent of O. ununguis and P. taxi is discussed.

16.
Foods ; 10(11)2021 Nov 11.
Artículo en Inglés | MEDLINE | ID: mdl-34829047

RESUMEN

Oilseed cakes are produced as a by-product of oil pressing and are mostly used as feed. Their use for human consumption is due to the functional properties and benefits for human health. Herein, oilseed cake flours of eight species (flax, hemp, milk thistle, poppy, pumpkin, rapeseed, safflower, sunflower) were sieved into fractions above (A250) and below (B250) 250 µm. The chemical composition, SDS-PAGE profiles, colour, functional properties and antioxidant activities of these flours were evaluated. The B250 fractions were evaluated as being protein and ash rich, reaching crude protein and ash content ranging from 31.78% (milk thistle) to 57.47% (pumpkin) and from 5.0% (flax) to 11.19% (poppy), respectively. A high content of carbohydrates was found in the flours of hemp, milk thistle and safflower with a significant increase for the A250 fraction, with a subsequent relation to a high water holding capacity (WHC) for the A250 fraction (flax, poppy, pumpkin and sunflower). The A250 milk thistle flour was found to have the richest in polyphenols content (TPC) (40.89 mg GAE/g), with the highest antioxidant activity using an ABTS•+ assay (101.95 mg AAE/g). The A250 fraction for all the species exhibited lower lightness than the B250 fraction. The obtained results indicate that sieving oilseed flour with the aim to prepare flours with specific functional characteristics and composition is efficient only in combination with a particular species.

17.
Exp Appl Acarol ; 50(2): 115-22, 2010 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-19690969

RESUMEN

Although Eriophyoidea is one of the most important phytophagous mite taxa owing to its negative impact on plants, reports on associations between occurrences of eriophyoid species are scarce. The aim of this paper is to test the hypothesis that the occurrence of one species is correlated with the occurrence of another in some predictive manner. Analyses are carried out for two popular coniferous trees in Poland, i.e., Norway spruce (Picea abies) and Scots pine (Pinus sylvestris). Observations were made in four locations in Poland, from three age groups of trees, namely adult trees (thirty 15-cm shoot samples from each of ten trees), young trees (ten 15-cm shoot samples from each of ten trees) and seedlings (100 whole-seedling samples). The associations were estimated by Yule's V index. Among four eriophyoid species observed on Scots pine, and the same number of species on Norway spruce, in general no association pattern was observed. It means that their occurrence is independent. The most likely explanation for the absence of co-occurrence is the abundance of microhabitats on coniferous trees for eriophyoid mites, combined with the low mite density on these plant hosts.


Asunto(s)
Ácaros/clasificación , Tracheophyta/parasitología , Animales , Interacciones Huésped-Parásitos , Ácaros/genética , Enfermedades de las Plantas/parasitología
18.
Mol Plant Pathol ; 21(1): 38-52, 2020 01.
Artículo en Inglés | MEDLINE | ID: mdl-31605455

RESUMEN

Vacuolar processing enzymes (VPEs) play an important role during regular growth and development and defence responses. Despite substantial attempts to understand the molecular basis of plant-cyst nematode interaction, the mechanism of VPEs functioning during this interaction remains unknown. The second-stage Heterodera filipjevi juvenile penetrates host roots and induces the formation of a permanent feeding site called a syncytium. To investigate whether infection with H. filipjevi alters plant host VPEs, the studies were performed in Hordeum vulgare roots and leaves on the day of inoculation and at 7, 14 and 21 days post-inoculation (dpi). Implementing molecular, biochemical and microscopic methods we identified reasons for modulation of barley VPE activity during interaction with H. filipjevi. Heterodera filipjevi parasitism caused a general decrease of VPE activity in infected roots, but live imaging of VPEs showed that their activity is up-regulated in syncytia at 7 and 14 dpi and down-regulated at 21 dpi. These findings were accompanied by tissue-specific VPE gene expression patterns. Expression of the barley cystatin HvCPI-4 gene was stimulated in leaves but diminished in roots upon infestation. External application of cyclotides that can be produced naturally by VPEs elicits in pre-parasitic juveniles vesiculation of their body, enhanced formation of granules, induction of exploratory behaviour (stylet thrusts and head movements), production of reactive oxygen species (ROS) and final death by methuosis. Taken together, down-regulation of VPE activity through nematode effectors promotes the nematode invasion rates and leads to avoidance of the induction of the plant proteolytic response and death of the invading juveniles.


Asunto(s)
Cisteína Endopeptidasas/metabolismo , Hordeum/enzimología , Hordeum/parasitología , Enfermedades de las Plantas/parasitología , Tylenchoidea/fisiología , Animales , Clorofila/metabolismo , Ciclotidas/farmacología , Cistatinas/genética , Perfilación de la Expresión Génica , Hordeum/genética , Interacciones Huésped-Parásitos , Raíces de Plantas/parasitología
19.
Nutrients ; 11(12)2019 Dec 02.
Artículo en Inglés | MEDLINE | ID: mdl-31810342

RESUMEN

OBJECTIVE: The study aims to compare the effectiveness of individual and group nutrition education methods in improving key anthropometric and biochemical markers in drug-treated, overweight-obese hypertensive adults. METHODS: The randomized trial included 170 patients with pharmacologically well-controlled primary hypertension and body mass index (BMI) ≥ 25 kg/m2. For six months, the patients received six sessions, either one-to-one individual nutrition education (IE, n = 89) or group education (GE, n = 81), developed by dietitians. Anthropometric measurements, body composition, and fasting measures of biochemical parameters were obtained at baseline and after six months of intervention. RESULTS: 150 patients completed the nutrition education program. The IE group significantly improved in many parameters compared to the GE group, including weight (p < 0.001), waist circumference (p < 0.001), BMI (p < 0.001), systolic and diastolic blood pressure (BP) (p < 0.001), fasting plasma glucose (p = 0.011), oral glucose tolerance test (OGGT) (p = 0.030), and insulin resistance (homeostatic model assessment of insulin resistance, HOMA-IR) (p < 0.001). The groups did not differ in terms of total cholesterol, high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) concentrations. CONCLUSION: Individual nutrition education is more effective than group education in terms of improving anthropometric and biochemical indices in overweight-obese hypertensive adults.


Asunto(s)
Hipertensión/terapia , Sobrepeso/terapia , Educación del Paciente como Asunto/métodos , Medicina de Precisión/métodos , Psicoterapia de Grupo/métodos , Adulto , Antropometría , Biomarcadores/análisis , Índice de Masa Corporal , Dietética/métodos , Femenino , Humanos , Hipertensión/complicaciones , Masculino , Persona de Mediana Edad , Obesidad/complicaciones , Obesidad/terapia , Sobrepeso/complicaciones , Resultado del Tratamiento
20.
Med Pr ; 70(2): 221-228, 2019 Apr 19.
Artículo en Polaco | MEDLINE | ID: mdl-30887955

RESUMEN

BACKGROUND: The aim of the study was to evaluate the influence of the place of living on the prevalence of the alcohol dependence syndrome (ADS) and to find its possible connections with socio-demographic data within a post-industrial city with a population > 100 000 inhabitants. MATERIAL AND METHODS: The study was carried out in 2004-2012 on a group of 431 patients living in Bytom with diagnosed ADS treated either in psychiatric wards or in outpatient psychiatric clinics. The patients' gender, age, employment, marital status, level of education and the fact of living in a given town district were analysed. The majority of the demographic data was obtained from the City Office. RESULTS: The study demonstrated the influence of the place of living, age, gender, level of education and employment on the prevalence of ADS in a post-industrial city. CONCLUSIONS: Alcohol addicts who seek treatment are predominantly men > 40 years of age, with low education, mostly unemployed, living in the urbanized districts within the city center or the post-industrial area of the city, which are the areas with the highest risk of ADS. Living in a suburban neighborhood may protect against alcohol addiction due to the lower risk of exposure to environmental factors contributing to the prevalence of ADS. Additional protective factors include at least secondary education and paid employment prospects. The neighborhood of people with ADS has a particularly devastating effect on women, who are more likely to become addicted in such environments. Med Pr. 2019;70(2):221-8.


Asunto(s)
Alcoholismo/etiología , Factores Socioeconómicos , Adolescente , Adulto , Factores de Edad , Alcoholismo/epidemiología , Conducta Adictiva/epidemiología , Conducta Adictiva/etiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Polonia , Factores Sexuales , Desempleo , Población Urbana , Adulto Joven
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