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1.
Int J Cosmet Sci ; 46(2): 318-332, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38083804

RESUMEN

Chronic exposure to ultraviolet (UV) radiation from sunlight accelerates skin ageing, which is followed by harsh, thick, dry and loose conditions. One of the most demonstrative symptoms is deep wrinkles induced by skin barrier disruption. Our previous research showed that Phaseolus angularis seed extract (PASE) effectively inhibits skin ageing through UVB protection in HaCaT cells by suppressing skin damage. However, its efficacy has not been evaluated in clinical trials so far. PASE cream's effectiveness was initially tested on the artificial skin model, revealing an increase in filaggrin and defence against skin damage. Based on these results, in this single-centred, randomized, double-blind study, we investigated the anti-ageing effect of PASE in human eye wrinkle areas. For these 21 healthy adult women aged 30 to 59, a PASE cream was applied to the right eye wrinkle area and a placebo to the left eye wrinkle area twice a day (morning and evening) for 12 weeks. The change in thick, deep crease wrinkles around the eyes was confirmed by visual evaluation, skin measurements and a questionnaire. As a result, the surface roughness (R1), maximum roughness (R2), average roughness (R3), smoothness depth (R4) and arithmetic mean roughness (R5) values in the group using the PASE cream all decreased. Particularly, R1, R4 and R5 significantly decreased by 18.1%, 18.6% and 25.0%, respectively. Subjects who applied PASE cream also experienced an improvement in skin moisture nearly twice the time compared to the placebo group. In addition, no participants reported side effects. Our study showed that PASE cream led to clinically significant levels of wrinkle improvement. In conclusion, as PASE is a natural, safe food with no side effects, it can be a good resource for natural anti-wrinkle functional cosmetics in the future.


L'exposition chronique aux rayons ultraviolets (UV) du soleil accélère le vieillissement cutané, qui provoque un épaississement et un assèchement de la peau et la rend plus lâche. La présence de rides profondes induites par la rupture de la barrière cutanée en constitue l'un des symptômes les plus manifestes. Lors d'études précédentes, nous nous sommes rendu compte que l'extrait de graines de Phaseolus angularis (PASE) inhibait efficacement le vieillissement de la peau en assurant la protection anti­UVB des cellules HaCaT grâce à la suppression des lésions cutanées. Cependant, son efficacité n'a pas été évaluée lors d'essais cliniques à ce jour. L'efficacité de la crème PASE a d'abord été testée sur le modèle de peau artificielle, sur laquelle elle a fait augmenter les taux de filaggrine et assuré une défense contre les lésions cutanées. Sur la base de ces résultats, dans cette étude unicentrique, randomisée et en double aveugle, nous avons étudié l'effet anti­âge de la PASE chez l'humain au niveau des rides proches de l'œil. Pour ces 21 femmes adultes en bonne santé âgées de 30 à 59 ans, une crème PASE a été appliquée sur la zone de rides de l'œil droit et un placebo sur la zone de rides de l'œil gauche deux fois par jour (matin et soir) pendant 12 semaines. La modification des rides profondes et épaisses autour des yeux a été confirmée par une évaluation visuelle, des mesures cutanées et un questionnaire. Il a été découvert que les valeurs de rugosité de surface (R1), de rugosité maximale (R2), de rugosité moyenne (R3), de profondeur de douceur (R4) et de moyenne arithmétique (R5) dans le groupe à l'aide de la crème PASE avaient toutes diminué. En particulier, R1, R4 et R5 ont significativement diminué de 18,1 %, de 18,6 % et de 25,0 %, respectivement. Les patients qui ont appliqué la crème PASE ont également présenté une amélioration de l'hydratation de la peau presque deux fois supérieure à celle du groupe placebo. En outre, aucun participant n'a signalé d'effets secondaires. Notre étude a montré que la crème PASE entraînait des niveaux cliniquement significatifs d'amélioration des rides. En conclusion, comme le PASE est un aliment naturel, sûr et dépourvu d'effets secondaires, elle peut constituer une bonne ressource pour les cosmétiques fonctionnels naturels antirides à l'avenir.


Asunto(s)
Cosméticos , Phaseolus , Envejecimiento de la Piel , Adulto , Humanos , Femenino , Piel , Cosméticos/farmacología , Emolientes/farmacología , Crema para la Piel/farmacología
2.
Small ; 19(37): e2301868, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37147775

RESUMEN

Wearable ionoskins are one of the representative examples of the many useful applications offered by deformable stimuli-responsive sensory platforms. Herein, ionotronic thermo-mechano-multimodal response sensors are proposed, which can independently detect changes in temperature and mechanical stimuli without crosstalk. For this purpose, mechanically robust, thermo-responsive ion gels composed of poly(styrene-ran-n-butyl methacrylate) (PS-r-PnBMA, copolymer gelator) and 1-butyl-3-methylimidazolium bis(trifluoromethyl sulfonyl)imide ([BMI][TFSI], ionic liquid) are prepared. The optical transmittance change arising from the lower critical solution temperature (LCST) phenomenon between PnBMA and [BMI][TFSI] is exploited to track the external temperature, creating a new concept of the temperature coefficient of transmittance (TCT). The TCT of this system (-11.5% °C-1 ) is observed to be more sensitive to temperature fluctuations than the conventional metric of temperature coefficient of resistance. The tailoring molecular characteristics of gelators selectively improved the mechanical robustness of the gel, providing an additional application opportunity for strain sensors. This functional sensory platform, which is attached to a robot finger, can successfully detect thermal and mechanical environmental changes through variations in the optical (transmittance) and electrical (resistance) properties of the ion gel, respectively, indicating the high practicality of on-skin multimodal wearable sensors.

3.
Small ; 19(28): e2301754, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-36970771

RESUMEN

The uncontrollable dendritic growth of metallic lithium during repeated cycling in carbonate electrolytes is a crucial obstacle hindering the practical use of Li-metal batteries (LMBs). Among numerous approaches proposed to mitigate the intrinsic constraints of Li metal, the design of a functional separator is an attractive approach to effectively suppress the growth of Li dendrites because direct contact with both the Li metal surface and the electrolyte is maintained. Here, a newly designed all-in-one separator containing bifunctional CaCO3 nanoparticles (CPP separator) is proposed to achieve the flattening of Li deposits on the Li electrode. Strong interactions between the highly polar CaCO3 nanoparticles and the polar solvent reduces the ionic radius of the Li+ -solvent complex, thus increasing the Li+ transference number and leading to a reduced concentration overpotential in the electrolyte-filled separator. Furthermore, the integration of CaCO3 nanoparticles into the separator induces the spontaneous formation of mechanically-strong and lithiophilic CaLi2 at the Li/separator interface, which effectively decreases the nucleation overpotential toward Li plating. As a result, the Li deposits exhibit dendrite-free planar morphologies, thus enabling excellent cycling performance in LMBs configured with a high-Ni cathode in a carbonate electrolyte under practical operating conditions.

4.
J Obstet Gynaecol Res ; 49(1): 280-288, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36251735

RESUMEN

AIM: To evaluate the safety and effectiveness of uterine fibroid embolization (UFE) in patients with a scarred uterus caused by a previous myomectomy or cesarean section. METHODS: A total of 140 patients who underwent embolization for symptomatic fibroids were included in this retrospective study. The patients were divided into two groups, those with a history of myomectomy and/or cesarean section (scarred uterus group, n = 56), and those without surgical history involving the uterus (no-scar group, n = 84). Demographics, embolization details, outcomes, and complications were analyzed. RESULTS: The overall clinical success rate was 89.28% in the scarred uterus group and 95.24% in the no-scar group. There was no statistical difference in infarction rate or change in fibroid volume in follow-up magnetic resonance imaging between the groups. There was one major complication in the no-scar group, but there was no statistical difference in complications between the groups. The mean follow-up period was 25.9 months. The mean symptom-free time was 27.2 months in the scarred uterus group and 21.9 months in the no-scar group without a significant difference. There were no statistically significant differences in symptom changes, recurrence, and complication rates between the groups. Recurrence seen on imaging or regrowth was more common in the group with myomectomy history. However, there was no significant difference in symptom recurrence rates. CONCLUSION: No statistically significant difference in technical and clinical outcomes was observed between the two groups. There was no significant increase in complication rates of UFE in scarred uterus group.


Asunto(s)
Embolización Terapéutica , Leiomioma , Miomectomía Uterina , Neoplasias Uterinas , Humanos , Femenino , Embarazo , Neoplasias Uterinas/cirugía , Estudios Retrospectivos , Cesárea , Útero/patología , Leiomioma/cirugía , Miomectomía Uterina/efectos adversos , Miomectomía Uterina/métodos , Resultado del Tratamiento
5.
Plant Dis ; 2023 Nov 30.
Artículo en Inglés | MEDLINE | ID: mdl-38037210

RESUMEN

In 2021, several dry bean (Phaseolus vulgaris L.) plants at the mid-seed-fill growth stage displaying wilting, chlorosis of the leaves and reduced vigor were collected near the Pembina - Emerson Border of Manitoba, Canada and North Dakota, USA. When symptomatic plants were examined, gray to dark brown discoloration was observed on the lower stem and the roots. Afterwards, brown to black discoloration was noticed on stem and root sections. Root and lower stem pieces (1 to 2 cm) from affected plants were surface sterilized with 70 % ethanol, followed by 1% NaOCl, rinsed twice in sterilized water, air dried on sterilized filter papers, and placed on potato dextrose agar (PDA) amended with 1 mg/mL of streptomycin sulfate. The PDA plates were incubated at 28°C with 12 h light/12 h dark for 10 days. The growing hyphae were transferred using the hyphal tip method to new PDA plates. Growing cultures were initially hyaline and turned from light gray to dark brown or black with age. Abundant dark and spherical to oblong shaped sclerotia with an average diameter of 97.9 µm (range: 66.8 to 143.5 µm, n =30) formed on the pure cultures 7 days after incubation. Additional pure culture was obtained through an isolation of a single microsclerotium followed by a single hyphal tip transfer. One isolate was identified as Macrophomina phaseolina based on morphological characteristics (Smith and Wyllie 1999). The morphological identity was confirmed by sequencing the rDNA internal transcribed spacer (ITS) region with universal primers ITS1/ITS4 (White et al. 1990) and calmodulin (CAL) and translation elongation factor-1 alpha (TEF-1α) genes with MpTefF/MpTefR, and MpCalF/MpCalR primer sets (Santos et al. 2020), respectively. The online resource Basic Local Alignment Search Tool (BLAST; https://www.ncbi.nlm.nih.gov/BLAST) confirmed the fungus identity as 100% M. phaseolina. The sequences of the original isolate BF21-25 were deposited in GenBank with accession numbers OQ615297 (ITS), OR357630 (CAL), and OR363106 (TEF-1α). To confirm pathogenicity, bioassays were conducted under controlled conditions. Four seeds of cultivar 'Etna' were sown per pot, and five pots were used for inoculated (approx. 4 × 105 microsclerotia/pot) and control (mock-inoculated with sterile PDA medium) treatments. For the inoculum, 20 g of macerated 10 to 14-day old M. phaseolina culture grown on PDA medium was applied to each pot using an inoculum layering technique. Pots were kept in the greenhouse with 28/17°C day/night, 13 h light/11 h dark cycle, and 70% relative humidity and watered weekly. Disease symptoms similar to those observed in the field were visible on all inoculated plants at the mid-seed-fill growth stage. Mock-inoculated control plants didn't show any symptoms. The experiment was repeated twice with similar results. The pathogen was re-isolated from infected plants to confirm Koch's postulates and identified as M. phaseolina based on the morphology and sequences of ITS, CAL and TEF-1α regions. To our knowledge, this is the first report of charcoal rot caused by M. phaseolina on dry bean in Western Canada.

6.
Plant Dis ; 2023 Nov 12.
Artículo en Inglés | MEDLINE | ID: mdl-37953226

RESUMEN

Macrophomina phaseolina (Tassi) Goid. is a soilborne necrotrophic fungal pathogen causing charcoal rot on approximately 500 plant species worldwide (Mengistu et al. 2015). Charcoal rot occurs in eastern Canada and many regions of the USA, causing substantial yield losses in soybean [Glycine max (L.) Merr.] (Allen et al. 2017; Bradley et al. 2021; Wrather et al. 2001). However, it has not been reported in soybean in western Canada. Manitoba is the second largest soybean producer in Canada, comprising 31% of total seeded areas with 2.29 M acres in 2017 (Statistics Canada 2022). Still, soybean is a relatively new crop to Manitoba and annual surveys of soybean root diseases began in 2012. In August 2020, randomly selected soybean fields were surveyed for root diseases at 63 different locations in south-central and southwest Manitoba. A total of thirty diseased plants were sampled in a zigzag pattern at three random sites in each field and all samples were brought to the laboratory and rated for disease severity. All plants showed symptoms of root rot, and some samples exhibited wilting with yellowing-brown leaves attached to the stems by the petioles; when the taproot was sectioned longitudinally, black streaking could be observed. In the laboratory, 600 roots from 40 selected fields were processed for pathogen isolation and identification. A 1 cm section from each root was surface-sterilized in a 95% EtOH:5.25% NaOCl solution for 30 sec, rinsed in sterile water for 60 sec, and air-dried on sterilized filter paper in a laminar flow hood. Root tissues with two replicates were placed on potato dextrose agar (PDA) plates amended with streptomycin sulfate (2 mg/mL) and incubated at room temperature. Black microsclerotia were observed in cultures from three different fields and three individual fungal isolates were obtained from each field through isolation of a single microsclerotium and subsequent hyphal tip transfer. The mycelia were initially hyaline and turned gray to dark brown or black, forming numerous microsclerotia ranging in size from 13 to 61 µm long and 12 to 32 µm wide, based on measurements of approximately 100 microsclerotia per isolate using a Zeiss Axio Imager A2 microscope equipped with an AxioCam HRc (Carl Zeiss, Jena, Germany) and AxioVision software. The color of the microsclerotia was jet black and the shape was round to oblong or irregular, as described by Mengistu et al. (2015). Based on morphological characteristics and microscopic examination, three fungal isolates were identified as M. phaseolina (Mengistu et al. 2015). For molecular identification, genomic DNA was extracted from 10 to 14-day old mycelia and microsclerotia of each isolate using a ZymoBIOMICS™ DNA Miniprep Kit (Zymo Research Corp., Irvine, CA, USA) according to the manufacturer's instructions. The internal transcribed spacer (ITS) region, translation elongation factor-1α (TEF-1α), and calmodulin (CAL) genes were amplified using the primer sets ITS1/ITS4 (White et al. 1990), MpTefF/MpTefR, and MpCalF/MpCalR (Santos et al. 2020), respectively, according to the original reaction conditions. Subsequently, PCR products were sequenced at Eurofins Genomics (Louisville, KY, USA). BLASTn analysis in GenBank showed that the nucleotide sequences of these regions of the three isolates (NSRR20-MB-24, NSRR20-MB-34, and NSRR20-MB-40) matched multiple isolates of M. phaseolina with 100% query cover and 100% identity. Sequences were deposited in GenBank for the ITS (OK127887, OK142725, OK128266), TEF-1α (OR363103, OR363104, OR363105), and CAL (OR357627, OR357628, OR357629) regions. In addition, the ITS and TEF-1α sequences of the three novel isolates were further aligned with multiple previously reported isolates of M. phaseolina, M. pseudophaseolina, and M. euphorbiicola (Chen et al. 2013; Machado et al. 2019; Sarr et al. 2014) using Muscle and trimmed (Edgar 2004). Alignments were concatenated to generate a maximum likelihood tree. Once concatenated, sequences were re-aligned. The obtained alignments were employed to construct a phylogenetic tree using the max likelihood method and Tamura-Nei model (Tamura and Nei 1993) with 10,000 bootstrap replicates using MEGA 11 (Tamura et al. 2021). The ITS and TEF-1α analysis indicated that the isolates were grouped in three differentiated clades (Figure 1). Macrophomina phaseolina isolates clustered in the same clade at 98% similarity, with the three novel soybean isolates NSRR20-MB-24, NSRR20-MB-34, and NSRR20-MB-40 grouped closely in the cluster at 98% similarity and identified as M. phaseolina. In contrast, isolates of M. euphorbiicola formed another clade at 87% similarity and M. pseudophaseolina isolates grouped in a clade at 99%. The pathogenicity of the three isolates was evaluated under controlled conditions. Given that no information on charcoal rot resistance in soybean has been reported in Canada, one of the commonly grown varieties in Manitoba, "TH 32004", was selected for the pathogenicity test. Surface-sterilized soybean seeds, which had been pre-germinated for three days, were sown in a sterilized soilless growing mix (Sunshine #5) together with 5 g (approx. 1 × 105 microsclerotia) of macerated 10 to 14-day old inoculum grown on PDA-streptomycin agar medium at room temperature and applied using an inoculum layering technique. For the non-inoculated control, macerated PDA-streptomycin agar without mycelia was used. Twenty plants per treatment were maintained in a walk-in plant growth chamber with a 16 h photoperiod at 25/20 °C ± 1 °C (day/night) and 50% relative humidity. Plants were watered weekly but were subjected to water stress. Symptoms of charcoal rot were observed in the root systems of all inoculated soybean plants after 28 days, while no symptoms were observed in the control plants (Figure S1). There was production of microsclerotia on the roots inoculated with each isolate (data not shown). Three isolates of M. phaseolina were re-isolated from the inoculated plants and found to be identical to the inoculated isolates with respect to morphological characteristics in culture, as well as with respect to the ITS, TEF-1α and CAL DNA sequences. For each isolate and non-inoculated control, five seeds of 'TH 32004' were seeded per pot, and four pots were used for the inoculated and control treatments. The experiment was repeated twice in a randomized complete block design with similar results, fulfilling Koch's postulates. To our knowledge, this is the first report of charcoal rot caused by M. phaseolina on soybean in Manitoba, Canada.

7.
Plant Dis ; 107(12): 3754-3762, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37368443

RESUMEN

White mold caused by the fungal pathogen Sclerotinia sclerotiorum (Lib.) de Bary is one of the most important biological constraints to dry bean (Phaseolus vulgaris L.) production in Canada. Disease forecasting is one tool that could help growers manage the disease while reducing fungicide use. However, predicting white mold epidemics has remained difficult due to their sporadic occurrence. In this study, over the course of four growing seasons (2018 to 2021), we surveyed dry bean fields in Alberta and collected daily in-field weather data and daily in-field ascospore counts. White mold levels were variable and generally high in all years, confirming that the disease is ubiquitous and a constant threat to dry bean production. Ascospores were present throughout the growing season, and mean ascospore levels varied by field, month, and year. Models based on in-field weather and ascospore levels were not highly predictive of final disease incidence in a field, suggesting that environment and pathogen presence were not limiting factors to disease development. Rather, significant effects of market class on disease were found, with pinto beans, on average, having the highest disease incidence (33%) followed by great northern (15%), black (10%), red (6%), and yellow (5%). When incidence of these market classes was modeled separately, different environmental variables were important in each model; however, average wind speed was a significant variable in all models. Taken together, these findings suggest that white mold management in dry bean should focus on fungicide use, plant genetics, irrigation management, and other agronomic factors.


Asunto(s)
Ascomicetos , Fungicidas Industriales , Phaseolus , Alberta , Fungicidas Industriales/farmacología , Ascomicetos/genética , Phaseolus/microbiología , Esporas Fúngicas
8.
J Allergy Clin Immunol ; 149(2): 599-609.e7, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34403659

RESUMEN

BACKGROUND: Diverse immune cells contribute to the pathogenesis of chronic rhinosinusitis (CRS), an inflammatory disease of the nasal cavity and paranasal sinuses. However, whether mucosal-associated invariant T (MAIT) cells are present in human sinonasal tissues remains unclear. Furthermore, the characteristics of sinonasal MAIT cells have not been studied in patients with CRS. OBJECTIVE: We investigated the phenotype, function, and clinical implications of MAIT cells in patients with CRS. METHODS: Peripheral blood and sinonasal tissue were obtained from patients with CRS with (CRSwNP) or without nasal polyps (CRSsNP) and healthy controls. MAIT cells were analyzed by flow cytometry. RESULTS: We found that MAIT cells are present in human sinonasal tissues from healthy controls and patients with CRS. The sinonasal MAIT cell population, but not peripheral blood MAIT cells, from patients with CRSsNP, noneosinophilic CRSwNP (NE-NP), or eosinophilic CRSwNP (E-NP) had a significantly higher frequency of activated cells marked by CD38 expression. In functional analysis, the sinonasal MAIT cell population from NE-NP and E-NP had a significantly higher frequency of IL-17A+ cells but lower frequency of IFN-γ+ or TNF+ cells than control sinonasal tissues. Furthermore, CD38 expression and IL-17A production by sinonasal MAIT cells significantly correlated with disease extent evaluated by the Lund-Mackay computed tomography score in patients with E-NP. CONCLUSIONS: Sinonasal MAIT cells exhibit an activated phenotype and produce higher levels of IL-17A in patients with CRSwNP. These alterations are associated with the extent of disease in patients with E-NP.


Asunto(s)
Interleucina-17/biosíntesis , Células T Invariantes Asociadas a Mucosa/inmunología , Pólipos Nasales/inmunología , Senos Paranasales/inmunología , Rinitis/inmunología , Sinusitis/inmunología , Adulto , Enfermedad Crónica , Femenino , Humanos , Masculino , Persona de Mediana Edad
9.
BMC Genomics ; 23(1): 326, 2022 Apr 25.
Artículo en Inglés | MEDLINE | ID: mdl-35468724

RESUMEN

BACKGROUND: Most crop seeds are F1 hybrids. Seed providers and plant breeders must be confident that the seed supplied to growers is of known, and uniform, genetic makeup. This requires maintenance of pure genotypes of the parental lines and testing to ensure the genetic purity of the F1 seed. Traditionally, seed purity has been assessed with a grow-out test (GOT) in the field, a time consuming and costly venture. Early in the last decade, seed testing with molecular markers was introduced as a replacement for GOT, and Kompetitive allele specific PCR (KASP) markers were recognized as promising tools for genetic testing of seeds. However, the markers available at that time could be inaccurate and applicable to only a small number of accessions or varieties due to the limited genetic information and reference genomes available. RESULTS: We identified 4,925,742 SNPs in 50 accessions of the Brasscia rapa core collection. From these, we identified 2,925 SNPs as accession-specific, considering properties of flanking region harboring accession-specific SNPs and genic region conservation among accessions by the Next Generation Sequencing (NGS) analysis. In total, 100 accession-specific markers were developed as accession-specific KASP markers. Based on the results of our validation experiments, the accession-specific markers successfully distinguised individuals from the mixed population including 50 target accessions from B. rapa core collection and the outgroup. Additionally, the marker set we developed here discriminated F1 hybrids and their parental lines with distinct clusters. CONCLUSIONS: This study provides efficient methods for developing KASP markers to distinguish individuals from the mixture comprised of breeding lines and germplasms from the resequencing data of Chinese cabbage (Brassica rapa spp. pekinensis).


Asunto(s)
Brassica rapa , Alelos , Brassica rapa/genética , Humanos , Fitomejoramiento , Reacción en Cadena de la Polimerasa , Semillas/genética
10.
New Phytol ; 235(2): 743-758, 2022 07.
Artículo en Inglés | MEDLINE | ID: mdl-35403705

RESUMEN

Hybridization and polyploidization are pivotal to plant evolution. Genetic crosses between distantly related species are rare in nature due to reproductive barriers but how such hurdles can be overcome is largely unknown. Here we report the hybrid genome structure of xBrassicoraphanus, a synthetic allotetraploid of Brassica rapa and Raphanus sativus. We performed cytogenetic analysis and de novo genome assembly to examine chromosome behaviors and genome integrity in the hybrid. Transcriptome analysis was conducted to investigate expression of duplicated genes in conjunction with epigenome analysis to address whether genome admixture entails epigenetic reconfiguration. Allotetraploid xBrassicoraphanus retains both parental chromosomes without genome rearrangement. Meiotic synapsis formation and chromosome exchange are avoided between nonhomologous progenitor chromosomes. Reconfiguration of transcription network occurs, and less divergent cis-elements of duplicated genes are associated with convergent expression. Genome-wide DNA methylation asymmetry between progenitors is largely maintained but, notably, B. rapa-originated transposable elements are transcriptionally silenced in xBrassicoraphanus through gain of DNA methylation. Our results demonstrate that hybrid genome stabilization and transcription compatibility necessitate epigenome landscape adjustment and rewiring of cis-trans interactions. Overall, this study suggests that a certain extent of genome divergence facilitates hybridization across species, which may explain the great diversification and expansion of angiosperms during evolution.


Asunto(s)
Brassicaceae , Genoma de Planta , Brassicaceae/genética , Metilación de ADN/genética , Hibridación Genética
11.
Mol Psychiatry ; 26(8): 3737-3750, 2021 08.
Artículo en Inglés | MEDLINE | ID: mdl-32989244

RESUMEN

Guanine nucleotide binding protein (G protein) gamma 8 (Gng8) is a subunit of G proteins and expressed in the medial habenula (MHb) and interpeduncular nucleus (IPN). Recent studies have demonstrated that Gng8 is involved in brain development; however, the roles of Gng8 on cognitive function have not yet been addressed. In the present study, we investigated the expression of Gng8 in the brain and found that Gng8 was predominantly expressed in the MHb-IPN circuit of the mouse brain. We generated Gng8 knockout (KO) mice by CRISPR/Cas9 system in order to assess the role of Gng8 on cognitive function. Gng8 KO mice exhibited deficiency in learning and memory in passive avoidance and Morris water maze tests. In addition, Gng8 KO mice significantly reduced long-term potentiation (LTP) in the hippocampus compared to that of wild-type (WT) mice. Furthermore, we observed that levels of acetylcholine (ACh) and choline acetyltransferase (ChAT) in the MHb and IPN of Gng8 KO mice were significantly decreased, compared to WT mice. The administration of nAChR α4ß2 agonist A85380 rescued memory impairment in the Gng8 KO mice, suggesting that Gng8 regulates cognitive function via modulation of cholinergic activity. Taken together, Gng8 is a potential therapeutic target for memory-related diseases and/or neurodevelopmental diseases.


Asunto(s)
Habénula , Acetilcolina , Animales , Aprendizaje , Aprendizaje por Laberinto , Ratones , Ratones Noqueados , Agonistas Nicotínicos
12.
J Anim Physiol Anim Nutr (Berl) ; 106(1): 88-97, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-34101262

RESUMEN

A total of 120 finishing pigs with an average initial body weight of 49.72 ± 0.08 kg (mean ± SD) were used in a 10 weeks trial. Pigs were randomly allotted into one of four dietary treatments (6 replicate pen/treatment, 5 pigs/pen). The nutritional dietary treatments were corn, soy bean meal, palm- kernel meal, and rapeseed meal based basal diets supplemented with 0, 0.05, 0.10, and 0.20% of Achyranthes japonica extract (AJE). Dietary inclusion of AJE supplementation had trend to increase the body weight and average daily gain of pigs at week 10 and the overall experimental period, respectively. The graded level of AJE supplement had increase the total track digestibility dry matter (p = 0.067) only at week 5 while nitrogen and energy digestibility (p < 0.05) was linearly increased at both weeks 5 and 10. During week 10, pigs fed with an increased level of AJE supplementation had linearly increase (p < 0.05) fecal Lactobacillus counts. In addition, AJE supplementation in the diet of finishing pigs had linearly decreased (p > 0.05) NH3 emission of gas and trend to decrease total mercaptans during week 10. Dietary inclusion of AJE supplement resulted in a linear increase in the blood protein concentration level. Moreover, drip loss was linearly reduced on day 5 and day 7 (p > 0.05) post slaughter in finishing pigs fed with gradually increased levels of AJE supplementation. During weeks 5 and 10, pigs fed with graded levels of AJE supplementation had linearly increase (p < 0.05) the backfat thickness and lean meat percentage. Therefore we conclude that dietary inclusion of AJE with palm kernel meal and rapeseed meal could be benificial to enhance the growth performance, nutrient digestibility, fecal microbial, blood prolife, meat quality and reduced fecal gas emission in finishing pigs.


Asunto(s)
Achyranthes , Brassica napus , Alimentación Animal/análisis , Fenómenos Fisiológicos Nutricionales de los Animales , Animales , Dieta/veterinaria , Suplementos Dietéticos , Extractos Vegetales , Glycine max , Porcinos
13.
Macromol Rapid Commun ; 42(22): e2100468, 2021 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-34555244

RESUMEN

Monolithic electrochromic supercapacitors (ECSs) have attracted increasing interest in recent electrochemical electronics due to their simplicity and unique ability to visually indicate stored energy levels. One crucial challenge for practical use is the improvement of shelf-life. Herein, zwitterionic (ZI) ionogels are proposed as effective electrolytes to reduce the self-discharging decay of ECSs. All-in-one ZI electrochromic (EC) gels are produced by one-pot sono-polymerization. The presence of ZI moieties in the gel does not affect the EC characteristics of chromophores. In addition, excellent capacitive properties in areal capacitance and coulombic efficiency are presented owing to the alignment of ZI units under an electric field and the formation of ion migration channels where rapid ion transport is allowed. Furthermore, the shelf-life of the ZI gel-based ECS is significantly improved by adjusting the interaction between polymeric gelators and ion species. The ZI gel-based ECS is expected to be a key platform for future smart energy storage devices.


Asunto(s)
Electrólitos , Polímeros , Capacidad Eléctrica , Geles , Polimerizacion
14.
Biol Pharm Bull ; 44(1): 18-24, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33390545

RESUMEN

Deeper wrinkles and loss of elasticity are one of the skin-aging symptoms. Collagen breakdown by matrix metalloproteinase-1 (MMP-1), which is induced by reactive oxygen species (ROS) and pro-inflammatory cytokines, has been known to be responsible for these skin-aging symptoms. Therefore, much attention has been paid to chemicals to suppress the MMP-1 activity. Epigallocatechin-3-gallate (EGCG), catechin rich in green tea, has been reported to show antioxidant and protect skin from various stimuli such as UV and chemicals. In this study, we evaluated the inhibitory effect of EGCG on MMP-1 gene expression and secretion in tumor necrosis factor-α (TNF-α)-treated human dermal fibroblast cells (Hs68 cells). Pre-treatment with EGCG (10 and 20 µM) suppressed TNF-α-induced MMP-1 expression and secretion. EGCG also reduced the phosphorylation of extracellular signal regulated kinase (ERK) significantly but not that of p38 activation and c-Jun N-terminal kinase (JNK). Besides, EGCG (10 and 20 µM) showed the inhibitory effect on mitogen-activated protein extracellular kinase (MEK) and Src phosphorylation which is reported to be upstream signal proteins of ERK signal pathway. Based on these results, EGCG might have potential activity to slow down the skin-aging through inhibition of collagen breakdown, which remains to be elucidated.


Asunto(s)
Antioxidantes/farmacología , Catequina/análogos & derivados , Fibroblastos/efectos de los fármacos , Sistema de Señalización de MAP Quinasas/efectos de los fármacos , Metaloproteinasa 1 de la Matriz/biosíntesis , Factor de Necrosis Tumoral alfa/toxicidad , Catequina/farmacología , Relación Dosis-Respuesta a Droga , Fibroblastos/enzimología , Regulación Enzimológica de la Expresión Génica , Humanos , Sistema de Señalización de MAP Quinasas/fisiología , Especies Reactivas de Oxígeno/antagonistas & inhibidores , Especies Reactivas de Oxígeno/metabolismo , Envejecimiento de la Piel/efectos de los fármacos , Envejecimiento de la Piel/fisiología , Factor de Necrosis Tumoral alfa/antagonistas & inhibidores
15.
J Korean Med Sci ; 36(40): e264, 2021 Oct 18.
Artículo en Inglés | MEDLINE | ID: mdl-34664801

RESUMEN

BACKGROUND: Endoscopic sinus surgery (ESS) is the mainstay treatment for refractory chronic rhinosinusitis (CRS). Since various factors may contribute to the surgical outcome, it is challenging for physicians to predict surgical outcomes. The aim of study was to analyze the prognostic factors of postoperative outcomes and to establish the prediction model with the risk factors that impact the postoperative outcomes. METHODS: Medical records of CRS patients who underwent ESS at 9 institutions in 2005, 2010, and 2016 were retrospectively reviewed. We classified the patients into 2 groups based on postoperative objective endoscopic outcomes. Demographics, nose-specific symptoms, olfactory function, eosinophil counts in blood (EoB) and nasal tissue (EoT), and Lund-Mackay CT score (LMS) were collected. Univariate and multivariate analyses were performed and established a prediction equation for postoperative endoscopic objective outcomes. RESULTS: In total (n = 1,249), 27.0% were not satisfied under postoperative endoscopic examination. Of 10 variables, LMS (> 5), sinus dominancy (maxillary sinus and ethmoid sinus), EoB (> 210), and EoT (> 100) were statistically significant in univariate analysis (P < 0.05, all). In multivariate analysis, EoT (> 100) and LMS (> 5) were significantly associated with poor postoperative outcome. Furthermore, 5 significant variables were employed to establish the risk model of postoperative outcomes and P (the value of prediction probability) = 1 / (1 + exp [-0.392 + 1.088 × EoT (> 100) + 0.123 × mean LMS (> 5) - 0.366 × sinus dominancy (maxillary) + 0.064 × sinus dominancy (similar) + 0.200 × EoB (4%) + 0.344 × EoB (> 210)] was developed. CONCLUSION: Tissue eosinophil count and radiographic severity predispose to a poorer outcome of ESS and the risk model established may be helpful to predict postoperative outcomes of ESS.


Asunto(s)
Rinitis/cirugía , Sinusitis/cirugía , Adulto , Enfermedad Crónica , Endoscopía , Eosinófilos/citología , Senos Etmoidales/patología , Femenino , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Satisfacción del Paciente , Periodo Posoperatorio , Pronóstico , República de Corea , Estudios Retrospectivos , Rinitis/patología , Factores de Riesgo , Índice de Severidad de la Enfermedad , Sinusitis/patología , Resultado del Tratamiento
16.
Plant Dis ; 105(12): 4006-4013, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34161124

RESUMEN

The large-scale deployment of resistance to Phytophthora sojae (Rps) genes in soybean has led to the rapid evolution of the virulence profile (pathotype) of P. sojae populations. Determining the pathotypes of P. sojae isolates is important in selecting soybean germplasm carrying the proper Rps, but this process is fastidious and requires specific expertise. In this work, we used a molecular assay to assess the pathotypes of P. sojae isolates obtained throughout the provinces of Québec, Ontario, and Manitoba. In preliminary assays, the molecular tool showed equivalent prediction of the pathotypes as a phenotyping assay and proved to be much faster to apply while eliminating intermediate values. Upon analysis of nearly 300 isolates, 24 different pathotypes were detected in Québec and Ontario, compared with only eight in Manitoba, where soybean culture is more recent. Pathotypes 1a, 1c, and 1d was predominant in Québec, while 1a, 1b, 1c, 1d, and 1k pathotypes were the most common in Manitoba. Overall, the results showed that 98 and 86% of the isolates carried pathotype 1a or 1c, respectively, suggesting that Rps1a and Rps1c were no longer effective in Canada. Based on the history of soybean varieties used in surveyed fields, it was found that 84% of them contained Rps genes that were no longer resistant against the pathotypes of the isolates found in the fields. While highlighting an easier and more precise option to assess pathotypes, this study presents the first pan-Canadian survey of P. sojae and stresses the importance of carefully managing the declining sources of resistance.


Asunto(s)
Phytophthora , Resistencia a la Enfermedad/genética , Ontario , Phytophthora/genética , Enfermedades de las Plantas , Glycine max
17.
Medicina (Kaunas) ; 57(6)2021 May 27.
Artículo en Inglés | MEDLINE | ID: mdl-34071900

RESUMEN

Background and Objectives: The purpose of the present study was to investigate the anti-bacterial efficacy of passive ultrasonic irrigation (PUI) and a 980-nm-gallium-aluminum-arsenide (GaAlAs) laser using a real-time DNA-based quantitative polymerase chain reaction (qPCR) assay and scanning electron microscopy (SEM). Materials and Methods: Eighty-six extracted single- and double-rooted human teeth were used in the experiment. The following four experimental groups were evaluated, as well as a control group: group 1: single root + PUI (n = 20); group 2: single root + laser application (n = 20); group 3: double roots + PUI (n = 20); group 4: double roots + laser application (n =20); control group (n = 6): 3 single roots, 3 double roots. The qPCR assay was performed in three stages to evaluate the efficacy of the adjunctive method against Enterococcus faecalis. SEM analysis was also used to examine the microstructure of root canal surfaces. The data were statistically analyzed using the Friedman test and the Kruskal-Wallis test with Bonferroni adjustment. Results: The decrease in the DNA levels from S1 (before preparation) to S2 (just after preparation) was highly significant in all groups, and decreases in DNA levels from S2 to S3 (after incubation for 1 week) were found in all experimental groups except group 1. An inter-group analysis showed that PUI was significantly more effective in terms of antibacterial efficacy than GaAlAs laser irradiation in single root (p < 0.05). However, in double roots, experimental groups did not show significantly lower DNA levels than the control group (p > 0.05). SEM images showed that cleaning of the root canal surface and reduction of dentin debris were achieved only in single-rooted teeth when using PUI application. Conclusions: Two adjunctive methods were effective in reducing E. faecalis in single rooted tooth.


Asunto(s)
Irrigantes del Conducto Radicular , Hipoclorito de Sodio , Humanos , Láseres de Semiconductores/uso terapéutico , Irrigación Terapéutica , Ultrasonido
18.
J Am Chem Soc ; 142(33): 14190-14200, 2020 Aug 19.
Artículo en Inglés | MEDLINE | ID: mdl-32787259

RESUMEN

Compared to nanostructured platinum (Pt) catalysts, ordered Pt-based intermetallic nanoparticles supported on a carbon substrate exhibit much enhanced catalytic performance, especially in fuel cell electrocatalysis. However, direct synthesis of homogeneous intermetallic alloy nanocatalysts on carbonaceous supports with high loading is still challenging. Herein, we report a novel synthetic strategy to directly produce highly dispersed MPt alloy nanoparticles (M = Fe, Co, or Ni) on various carbon supports with high catalyst loading. Importantly, a unique bimetallic compound, composed of [M(bpy)3]2+ cation (bpy = 2,2'-bipyridine) and [PtCl6]2- anion, evenly decomposes on carbon surface and forms uniformly sized intermetallic nanoparticles with a nitrogen-doped carbon protection layer. The excellent oxygen reduction reaction (ORR) activity and stability of the representative reduced graphene oxide (rGO)-supported L10-FePt catalyst (37 wt %-FePt/rGO), exhibiting 18.8 times higher specific activity than commercial Pt/C catalyst without degradation over 20 000 cycles, well demonstrate the effectiveness of our synthetic approach toward uniformly alloyed nanoparticles with high homogeneity.

19.
New Phytol ; 227(5): 1568-1581, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32392385

RESUMEN

Whole-genome annotation error that omits essential protein-coding genes hinders further research. We developed Target Gene Family Finder (TGFam-Finder), an alternative tool for the structural annotation of protein-coding genes containing target domain(s) of interest in plant genomes. TGFam-Finder took considerably reduced annotation run-time and improved accuracy compared to conventional annotation tools. Large-scale re-annotation of 50 plant genomes identified an average of 150, 166 and 86 additional far-red-impaired response 1, nucleotide-binding and leucine-rich-repeat, and cytochrome P450 genes, respectively, that were missed in previous annotations. We detected significantly higher number of translated genes in the new annotations using mass spectrometry data from seven plant species compared to previous annotations. TGFam-Finder along with the new gene models can provide an optimized platform for comprehensive functional, comparative, and evolutionary studies in plants.


Asunto(s)
Genoma de Planta , Plantas , Genoma de Planta/genética , Anotación de Secuencia Molecular , Plantas/genética
20.
Eur Arch Otorhinolaryngol ; 277(3): 761-765, 2020 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-31781838

RESUMEN

PURPOSE: Fungus ball (FB) is the most common type of fungal rhinosinusitis and the prevalence of FB has increased over the past 10 years. The aim of this study was to compare the clinical characteristics of Korean adult patients with FB and chronic rhinosinusitis (CRS) without FB. METHODS: We retrospectively analyzed data on 1362 patients (147 FB and 1215 CRS) who underwent endoscopic sinus surgery at nine Korean medical centers in 2005, 2010, and 2016. We evaluated the prevalence of FB and compared the clinical characteristics of FB and CRS. Medical records, computed tomography (CT) findings, atopic status, concomitant diseases, tissue, and blood eosinophil count were assessed. RESULTS: The prevalence of FB was significantly higher in 2016 (15.9%) than in the other years (7.8% in 2005 and 7.5% in 2010). The FB patients were more likely to be female, older, have unilateral disease and less likely to have allergy compared to the CRS patients. The most common main complaint related to CRS and FB was nasal obstruction. CT determined that unilateral disease and maxillary sinus dominancy were common in patients with FB. The incidence of concomitant diseases was much higher in FB, with lower tissue and blood eosinophilia. CONCLUSION: FB is commonly encountered in older women with the increased prevalence. FB had a different clinical presentation, radiological findings, and prognosis than CRS. Further studies are needed to understand the pathophysiologic mechanisms underlying the development of FB.


Asunto(s)
Micosis/diagnóstico , Procedimientos Quírurgicos Nasales/métodos , Senos Paranasales/cirugía , Rinitis/diagnóstico , Sinusitis/diagnóstico , Adulto , Anciano , Enfermedad Crónica , Endoscopía , Femenino , Humanos , Hipersensibilidad/complicaciones , Hipersensibilidad/diagnóstico , Masculino , Persona de Mediana Edad , Micosis/epidemiología , Micosis/cirugía , Senos Paranasales/microbiología , Prevalencia , República de Corea/epidemiología , Estudios Retrospectivos , Rinitis/cirugía , Sinusitis/cirugía , Tomografía Computarizada por Rayos X/métodos , Adulto Joven
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