5,994 results on '"Maria J"'
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2. Improved wind power assessments by bias adjusted reanalysed data with applications near Morocco's coast.
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Zekeik, Younes, OrtizBevia, Maria J., Alvarez-Garcia, Francisco J., Haddi, Ali, El Mourabit, Youness, and Alrubaye, Ali
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PROBABILITY density function , *WIND power , *WEIBULL distribution , *TRANSFER functions , *VELOCITY - Abstract
The wind energy requirements for high temporal and spatial observations, unavailable in many countries, are met by reanalysed wind data, which are increasingly used in wind power assessments. However, these data also include unrealistic features, making their validation compulsory. The validation analysis of ERA5 and MERRA-2 wind data, two of the most successful wind reanalyses, with observations near Morocco's coast, highlighted the existence of bias in both datasets, and other shortcomings. The study was conducted at eight selected sites in the period 2011-2020 using linear and probability density function based statistical tests. The local ERA5-BA and MERRA-2 BA velocity fields were created using Bias Adjustment (BA) Techniques. Only part of the observed and modelled datasets (training period) were used to identify the transfer function. The BA fields were verified against observations during the remaining period (verification period). They outperformed their respective non-adjusted fields and also the WFDE5 (the global bias-corrected ERA5 wind field) in the wind potential assessments, represented by capacity factor and low-wind day. At every location, the relative errors in the latter's estimates using ERA5-BA were lowered to less than 10 %, and the same was true for MERRA-2-BA. Thus, an observational dataset of reduced length can help overcome some reanalysed wind data limitations for wind power estimations. Additionally, this methodology can be applied to the correction of each reanalysis update. [ABSTRACT FROM AUTHOR]
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- 2024
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3. Exploring the Role of Titanate Perovskites in the Oxidation of Amines via Photocatalysis.
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Lopes, Joana C., Sampaio, Maria J., Silva, Cláudia G., and Faria, Joaquim L.
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SUSTAINABLE chemistry , *PEROVSKITE , *ORGANIC synthesis , *PHOTOCATALYSTS , *BENZYLAMINE , *OXIDATIVE coupling - Abstract
Considering that structural differences could affect the photocatalytic efficiency of titanate perovskites, cubic SrTiO3 (STO) and tetragonal CaTiO3 (CTO) were synthesised as models to elucidate the structure‐activity relationship. STO and CTO materials were produced through hydrothermal approaches, adjusting parameters such as temperature and pressure to optimise material purity. Among the perovskite photocatalysts, two stand out for their exceptional photocatalytic capacity and crystalline purity: CaTiO3, prepared at 180 °C for 36 h, and SrTiO3, synthesised at 200 °C for 24 h. Notably, we explore the selective ability of these materials for the photocatalytic oxidative self‐coupling of benzylamine (BZA) to produce N‐benzylidenebenzylamine (BZI), with CaTiO3 emerging as the most efficient catalyst for this reaction. The CTO material prepared at 180 °C for 36 h (CTO180T‐36) achieved a peak BZI production of 0.5 mM, with a total conversion of BZA after 7 h of irradiation. This study also emphasises the crucial role of reaction conditions and perovskite morphologies in fine‐tuning photocatalytic performance. These findings highlight opportunities for developing efficient and selective photocatalytic processes, holding the compromise for applications in organic synthesis and sustainable green chemistry. [ABSTRACT FROM AUTHOR]
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- 2024
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4. A Closer Look at Heritage Systems from Medieval Colors to Modern and Contemporary Artworks.
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Melo, Maria J., Vieira, Márcia, Nabais, Paula, Neves, Artur, Pamplona, Marisa, and Angelin, Eva Mariasole
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SPECTRAL imaging , *MEDIEVAL manuscripts , *ART conservation & restoration , *CULTURAL property , *EXPERIMENTAL design - Abstract
This microreview, conducted by interdisciplinary teams, examines complex heritage material systems, such as medieval colors and modern and contemporary artworks. Our multi-analytical approach, a significant aspect of our research, is a means to this end. The conservation of works of art is our shared goal, as it ensures their accessibility and the transfer of cultural heritage to future generations. We seek to interpret the damage, usefulness, and innovation of the experimental design in this context. As Jan Wouters rightly points out, "The terminology used nowadays to describe the potential damage to objects caused by analysis should be refined beyond the destructiveness/non-invasiveness polarization. A terminology should include at least degree level intervention (low, medium, high), usefulness, and innovation". Complementing micro- or sub-micro-sampling with the appropriate analytical methods is crucial, as exemplified in medieval, modern, and contemporary collections studies. Finally, a novel perspective for exploring the information contained in the multiscale heterogeneity of organic historical materials is envisaged, and it includes UV/Visible photoluminescence spectral imaging using a low-intensity ultraviolet synchrotron beam. [ABSTRACT FROM AUTHOR]
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- 2024
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5. Major Insect Pests of Sweet Potatoes in Brazil and the United States, with Information on Crop Production and Regulatory Pest Management.
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Cabral, Maria J. S., Haseeb, Muhammad, and Soares, Marcus A.
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NUTRITIONAL value , *PEST control , *RURAL development , *FOOD crops , *SWEET potatoes , *AGRICULTURAL productivity - Abstract
Simple Summary: The sweet potato is an important food crop grown and traded in many regions of the world, especially in tropical, subtropical, and temperate regions. Several insect pests feed on sweet potatoes in open fields and storage. As a result, the yield and quality are generally impacted. In addition, some of the insect pests are of regulatory importance. Indeed, the United States and Brazil are subject to stringent pest and quarantine regulations concerning sweet potatoes, encompassing the plant's roots and aerial parts. This review describes the current status of sweet potato regulations and management options in the United States and Brazil. We also describe research on sweet potato production, monitoring, biological control, and regulatory pest management information that may relieve these problems. This can help small and large farmers produce sweet potatoes in the United States and Brazil. The sweet potato [Ipomoea batatas (L.) Lam] is considered one of the most important crops in the world as food, fodder, and raw material for starch and alcohol production. Sweet potato consumption and demand for its value-added products have increased significantly over the past two decades, leading to new cultivars, expansion in acreage, and increased demand in the United States and its export markets. Due to its health benefits, sweet potato production has multiplied over the past decade in Brazil, promoting food security and economic development in rural areas. Their adaptability and nutritional value make them a food of great importance for Brazil. As pest attacks and disease infection are the main limiting aspects that often cause yield loss and quality degradation in sweet potatoes, there is a great demand to develop effective defense strategies to maintain productivity. There is a critical need for research into non-pesticide control approaches that can provide safe, cost-effective, sustainable, and environmentally friendly pest and disease management techniques. Pests which feed on roots have trade implications worldwide. For example, sweet potato tuber shipments infested with the sweet potato weevil are generally not allowed for trade in North and South America. [ABSTRACT FROM AUTHOR]
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- 2024
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6. Breast Reduction Epidemiology and Complications in Nonbinary, Transgender, and Cisgender Adults.
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Miller, Amitai S., Escobar-Domingo, Maria J., Lee, Bernard T., Ganor, Oren, Lin, Samuel J., Hu, Sophia, Pusic, Andrea L., and Kaur, Manraj N.
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TRANSGENDER people , *ADULTS , *CISGENDER people , *EPIDEMIOLOGY - Published
- 2024
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7. Cross-border higher education in Europe and the role of quality assurance agencies.
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Carvalho, Nathan, Rosa, Maria J., and Amaral, Alberto
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INTERNATIONAL cooperation , *UNIVERSITIES & colleges , *QUALITY assurance , *EDUCATIONAL quality , *HIGHER education - Abstract
AbstractThis article discusses the multiple challenges cross-border higher education (CBHE) in Europe faces nowadays, namely regarding the assurance of its quality. The views of a set of European quality assurance agencies are analysed to understand their role in assuring the quality of this type of educational provision. Empirically, the article is based on the material collected through interviews conducted with the responsible for quality assurance agencies from 10 European countries: Estonia, Finland, Germany, Ireland, Italy, Lithuania, Netherlands, Portugal, Spain and the United Kingdom. The results reveal that almost all quality assurance agencies have at least partial experience with CBHE provision, mainly related to the evaluation of joint-degree programmes offered by European higher education institutions. The cooperation between countries and agencies emerges as one of the main challenges to the development of a common tool to enhance CBHE, which could facilitate the quality assurance process for all stakeholders. [ABSTRACT FROM AUTHOR]
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- 2024
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8. The Catalytic Mechanism of Decarboxylation of L‐DOPA to Dopamine by Papaver somniferum Aromatic Amino Acid Decarboxylase – A Computational Study.
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Sousa, João P. M., Ramos, Maria J., and Fernandes, Pedro A.
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Morphine and codeine are essential medicines isolated from the opium poppy, whose biosynthesis is limited by the plant's L‐DOPA decarboxylase activity. In the present study, we use molecular dynamics and hybrid quantum mechanics/ molecular mechanics calculations to clarify the L‐DOPA decarboxylase chemical mechanism of decarboxylation and quinonoid intermediate protonation. In addition, the contribution of residues in the periphery of the active site to the rate‐limiting decarboxylation barrier was determined to guide future experimental mutagenesis aimed at increasing the catalytic activity of the aromatic amino acid decarboxylase enzyme, a fundamental step for the opiumpoppy‐free production of BIAs. Our calculations indicate that the decarboxylation barrier is higher in conformations in which the interaction between Tyr350B and the carboxylate leaving group is formed. Furthermore, the barrier for the protonation of the quinonoid intermediate by Tyr350B is predicted to be lower than the decarboxylation and dependent on His205A protonation by the bulk solvent. Residues Glu171, Asp270, Asp313 and Arg482 were identified as possible candidates for rate‐enhancing mutations of
P. somniferum aromatic amino acid decarboxylase. [ABSTRACT FROM AUTHOR]- Published
- 2024
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9. Nocturia and obstructive sleep apnea in spinal cord injured patients – a cohort study.
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Lambert, C., Maria, J. Di, Denys, P., Even, A., Welniarz, A., Hartley, S., Prigent, H., Leotard, A., and Joussain, Charles
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CONTINUOUS positive airway pressure , *SLEEP apnea syndromes , *NOCTURIA , *FISHER exact test , *SPINAL cord injuries , *NEUROGENIC bladder - Abstract
Purpose: To describe the prevalence of nocturia and obstructive sleep apnea (OSA) in a cohort of spinal cord injury (SCI) patients and to describe their association. Additionally, to assess clinical and urodynamic data explaining nocturia and to evaluate the effect of OSA management with continuous positive airway pressure (CPAP). Method: Retrospective analysis of data from patients with SCI followed in a tertiary care rehabilitation center with a specialized sleep and neuro-urology units. All adult SCI patients who underwent urodynamic assessment before polysomnography (PSG) between 2015 and 2023 were eligible. Subjective (nocturia) and objective data (urodynamic data, polysomnography, CPAP built-in software) were collated from the Handisom database (database register no. 20200224113128) and the medical records of SCI patients. Statistical testing used Mann-Whitney test for non-parametric variables, Fisher's exact test for contingency analysis and the Spearman correlation test to assess correlations. A p-value < 0.05 was considered significant. Statistical analyses were performed using GraphPad Prism v9. Results: 173 patients (131 males, 42 females) were included. The majority of patients were paraplegic (n = 111 (64,2%)) and had complete lesions (n = 75 (43,4%)). A total of 100 patients had nocturia (57,5%). The prevalence of OSA (Apnea Hypopnea Index (AHI) ≥ 15/h) in the studied population was 61,9%. No correlation was found between nocturia and OSA. A significant difference was observed between patients with and without nocturia in terms of the presence of neurogenic detrusor overactivity (p = 0,049), volume at the first detrusor contraction (p = 0,004) and the bladder functional capacity (p < 0,001). Conclusion: Nocturia and OSA are highly prevalent in patients with SCI, but no statistical association was found between these two disorders. A prospective study focusing on nocturnal polyuria will be needed to assess the impact of OSA on lower urinary tract symptoms in SCI patients. [ABSTRACT FROM AUTHOR]
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- 2024
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10. Selective Conversion of Furfural to Furfuryl Alcohol by Heterogeneous TiO2 Photocatalysis.
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Lopes, Joana C., Sampaio, Maria J., Silva, Cláudia G., and Faria, Joaquim L.
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FURFURYL alcohol , *ORGANIC solvents , *SURFACE defects , *TITANIUM dioxide , *PHOTOCATALYSTS , *FURFURAL , *RUTILE - Abstract
Selective synthesis of furfuryl alcohol from furfural conversion via semiconductor photocatalytic route has appeared as a promising solution for transforming biomass into high‐value‐added products under mild temperature and pressure conditions. Titanium dioxide (TiO2) photocatalysts were prepared by a simple sol‐gel method followed by a calcination treatment ranging from 500–1000 °C, resulting in materials with distinct physicochemical properties. The photocatalytic efficiency of the TiO2 samples was examined in the selective production of furfuryl alcohol from furfural under UV‐LED irradiation. The influence of various organic solvents, including ethanol, methanol, 2‐propanol, and acetonitrile, was evaluated to optimise the selectivity towards furfuryl alcohol production. Photocatalysts with larger anatase to rutile ratio and increased density of oxygen vacancies (defects) exhibited superior performance for furfuryl alcohol production. The presence of these defects on the catalyst surface leads to a significant enhancement in the photocatalytic efficiency by acting as crucial active sites. Among the TiO2 samples, the highest conversion of furfural into furfuryl alcohol was observed with the TiO2 sample calcined under an air atmosphere at 600 °C (TiO2‐600), achieving 85 % yield and 100 % selectivity for furfural after 30 min reaction using ethanol as solvent. [ABSTRACT FROM AUTHOR]
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- 2024
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11. Rhizobacterial diversity of Portuguese olive cultivars in the Douro valley and their potential as plant growth promoters.
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Sierra-Garcia, Isabel N, Ferreira, Maria J, Granada, Camille E, Patinha, Carla, and Cunha, Ângela
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INDOLEACETIC acid , *ELECTRIC conductivity , *BACTERIAL communities , *BACILLUS (Bacteria) , *RHIZOSPHERE , *OLIVE - Abstract
Aims This study investigated the bacterial communities in the rhizosphere of two traditional Portuguese olive cultivars, Cobrançosa and Negrinha de Freixo, in relation to soil properties. Additionally, we aimed to isolate and identify bacteria with potential for biocontrol and other plant growth-promoting traits from these rhizosphere communities. Methods and results Bacterial communities in the olive rhizosphere were investigated using a metabarcoding approach and the soil physicochemical properties of the olive groves were also analyzed. Higher bacterial richness was associated with Negrinha de Freixo growing in soil with high organic matter content and water-holding capacity. In contrast, the soils of the Cobrançosa grove presented higher pH and electric conductivity. Negrinha de Freixo rhizosphere was enriched with ASVs (Amplicon Sequence Variants) belonging to Bacillus, Gaiella, Acidothermus, Bradyrhizobium , and uncultured Xanthobacteraceae. On the other hand, the Cobrançosa rhizosphere was characterized by higher relative abundance of Streptomyces and Sphingomonas. Bacterial isolation from the rhizosphere and screening for plant growth-promoting activities were also performed. Six bacteria strains, predominantly Bacillus isolated from Negrinha de Freixo, demonstrated antagonistic activities against the olive fungal pathogen Colletotrichum gloeosporoides and other plant growth promotion (PGP) traits. Conclusions Our findings demonstrate that the structure of rhizosphere bacterial communities associated with olive trees is shaped by both plant cultivar and soil-related factors. The higher number of bacterial species in the rhizosphere of Negrinha de Freixo was related to a higher organic matter content and a greater abundance of isolates with plant growth promotion traits, particularly Bacillus strains. [ABSTRACT FROM AUTHOR]
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- 2024
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12. Arbuscular mycorrhizal Fungi as Inspiration for Sustainable Technology.
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Torres, Maria J., Moreira, Geisianny, Bhadha, Jehangir H., and McLamore, Eric S.
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VESICULAR-arbuscular mycorrhizas , *PLANT exudates , *SUSTAINABLE agriculture , *TECHNOLOGICAL innovations , *PLANT nutrition - Abstract
This review illuminates established knowledge of root–arbuscular mycorrhizal fungi (AMF)–plant mutualism to study the uptake of phosphorus (P) as a critical element for plant nutrition. We focus on P cycling, underscoring the role of AMF in enhancing P acquisition and plant resilience in the rhizosphere. The role(s) of plant roots, root exudates, and biomolecules in relevant soil processes is emphasized in this manuscript. Enhancing P uptake efficiency through AMF interaction presents a promising avenue for sustainable agriculture, with future research opportunities focusing on understanding underlying mechanisms and developing innovative technologies as a need to transition from the use of AMF as a biofertilizer or as an inoculation alternative for seeds to being an inspiration for the development of technology adapted to different crops. This is important to promote responsible agricultural practices and improve crop yields. We provide definitions of key terms and concepts for one of the best-known natural sustainable phosphorus systems. This manuscript illuminates and aims to inspire technology development to overcome the challenge of plant nutrition under P scarcity conditions. [ABSTRACT FROM AUTHOR]
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- 2024
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13. Association of Metabolic Derangement and Postoperative Outcomes in Hernia Repair With Component Separation: A Propensity Score-Matched Nationwide Analysis.
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Escobar-Domingo, Maria J., Hernandez Alvarez, Angelica, Merle, Chamilka, Fanning, James E., Lee, Daniela, Foppiani, Jose, Kim, Erin, Lin, Samuel J., and Lee, Bernard T.
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HERNIA surgery , *VENTRAL hernia , *BARIATRIC surgery , *THERAPEUTICS , *PLASTIC surgery - Abstract
Metabolic syndrome (MetS) is characterized by cardiometabolic abnormalities such as hypertension, obesity, diabetes, or dyslipidemia. This study aims to evaluate the association of MetS on the postoperative outcomes of ventral, umbilical, and epigastric hernia repair using component separation. The American College of Surgeons National Surgical Quality Improvement Program database was used to identify patients who underwent ventral, umbilical, and epigastric hernia repair with component separation between 2015 and 2021. MetS status was defined as patients receiving medical treatment for diabetes mellitus and hypertension, with a body mass index greater than 30 kg/m2. Propensity matching was performed to generate two balanced cohorts with and without MetS. T -tests and Fisher's Exact tests assessed group differences. Logistic regression models evaluated complications between the groups. After propensity score matching, 3930 patients were included in the analysis, with 1965 in each group (MetS versus non-MetS). Significant differences were observed in the severity and clinical presentation of hernias between the groups. The MetS cohort had higher rates of incarcerated hernia (39.1% versus 33.2%; P < 0.001), and recurrent ventral hernia (42.7% versus 36.5%; P < 0.001) compared to the non-MetS cohort. The MetS group demonstrated significantly increased rates of renal insufficiency (P = 0.026), unplanned intubation (P = 0.003), cardiac arrest (P = 0.005), and reoperation rates (P = 0.002) than the non-MetS cohort. Logistic regression models demonstrated higher likelihood of postoperative complications in the MetS group, including mild systemic complications (OR 1.25; 95%CI 1.030-1.518; P = 0.024), severe systemic complications (OR 1.63; 95%CI 1.248-2.120; P < 0.001), and reoperation (OR 1.47; 95%CI 1.158-1.866; P = 0.002). There were no significant differences in the rates of 30-d wound complications between groups. The presence of metabolic derangement appears to be associated with adverse postoperative medical outcomes and increased reoperation rates after hernia repair with component separation. These findings highlight the importance of optimizing preoperative comorbidities as surgeons counsel patients with MetS. • Metabolic syndrome is a cluster of cardiometabolic abnormalities, including hypertension, obesity, diabetes, and dyslipidemia. • Higher rates of incarcerated hernia and recurrent ventral hernia present in patients with diagnosis of metabolic derangement. • Metabolic derangement can be associated with an increased risk of mild and severe systemic complications and reoperation in patients undergoing hernia repair with component separation. • Metabolic derangement was not associated with increased risk of wound complications following hernia repair with component separation. [ABSTRACT FROM AUTHOR]
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- 2024
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14. Diet and habitat as determinants of intestine length in fishes.
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Duque-Correa, Maria J., Clements, Kendall D., Meloro, Carlo, Ronco, Fabrizia, Boila, Anna, Indermaur, Adrian, Salzburger, Walter, and Clauss, Marcus
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FRESHWATER fishes , *FISH ecology , *BIOLOGISTS , *INTESTINES , *ANATOMY - Abstract
Fish biologists have long assumed a link between intestinal length and diet, and relative gut length or Zihler's index are often used to classify species into trophic groups. This has been done for specific fish taxa or specific ecosystems, but not for a global fish dataset. Here, we assess these relationships across a dataset of 468 fish species (254 marine, 191 freshwater, and 23 that occupy both habitats) in relation to body mass and fish length. Herbivores had significantly relatively stouter bodies and longer intestines than omni- and faunivores. Among faunivores, corallivores had longer intestines than invertivores, with piscivores having the shortest. There were no detectable differences between herbivore groups, possibly due to insufficient understanding of herbivorous fish diets. We propose that reasons for long intestines in fish include (i) difficult-to-digest items that require a symbiotic microbiome, and (ii) the dilution of easily digestible compounds with indigestible material (e.g., sand, wood, exoskeleton). Intestinal indices differed significantly between dietary groups, but there was substantial group overlap. Counter-intuitively, in the largest dataset, marine species had significantly shorter intestines than freshwater fish. These results put fish together with mammals as vertebrate taxa with clear convergence in intestine length in association with trophic level, in contrast to reptiles and birds, even if the peculiar feeding ecology of herbivorous fish is probably more varied than that of mammalian herbivores. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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15. De novo urethral hypermobility at 6 months after first delivery as a risk factor for stress urinary incontinence 12 years postpartum.
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Arrue Gabilondo, Miren, Belar, Maria J., and Diez‐Itza, Irene
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URINARY stress incontinence , *BODY mass index , *LOGISTIC regression analysis , *REGRESSION analysis , *STATISTICAL significance - Abstract
Objective Methods Results Conclusion The aim of the study was to analyze the association between de novo urethral hypermobility 6 months postpartum and stress urinary incontinence (SUI) symptoms at 6 months and 12 years after first delivery. Risk factors associated with the development of postnatal urethral hypermobility were also examined.A longitudinal cohort study was conducted on primigravid women, after excluding those with UI before pregnancy and/or urethral hypermobility (rotational angle ≥30°) at term. At 6 months postpartum, SUI was assessed based on symptoms and introital ultrasound performed to measure rotational angle (difference between urethro‐pelvic angle at rest and at maximum Valsalva). Twelve years after delivery, women were sent a questionnaire including SUI assessment and questions on parity, current age, and body mass index. Continuous variables were compared using student's t‐test and qualitative variables using chi‐squared tests. A logistic regression model was constructed including variables that reached statistical significance (P < 0.05) in the univariate analysis.Of the 314 women who completed the 6‐month follow‐up, 265 (84.4%) were successfully contacted and completed the questionnaire at 12 years and these formed the study group. In 127 women (47.9%), de novo urethral hypermobility had developed by 6 months postpartum. There was no association between urethral hypermobility and SUI symptoms 6 months postpartum (OR: 1.17; 95% CI: 0.59–2.33). Twelve years after delivery, however, SUI was reported by 110 women overall (41.5%) and nearly half of the women who developed postnatal urethral hypermobility (61/127, 48.0%).De novo urethral hypermobility 6 months postpartum constitutes a risk factor for SUI 12 years later. [ABSTRACT FROM AUTHOR]
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- 2024
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16. Fracture Analysis of Highly Flexible Adhesives: Cohesive Zone Modelling across a Wide Spectrum of Temperatures and Strain Rates.
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Nunes, Tomas, Ribas, Maria J. P., Akhavan-Safar, Alireza, Carbas, Ricardo J. C., Marques, Eduardo A. S., Wenig, Sabine, and da Silva, Lucas F. M.
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DAMPING capacity , *FRACTURE mechanics , *STRAIN rate , *FRACTURE toughness , *PREDICTION models , *COHESIVE strength (Mechanics) - Abstract
This study focuses on the prediction of the fracture mechanics behaviour of a highly flexible adhesive (with a tensile elongation of 90%), since this type of adhesive is becoming widely used in automotive structures due to their high elongation at break and damping capacity. Despite their extensive applications, the understanding of their fracture mechanics behaviour under varying loading rates and temperatures remains limited in the literature. In addition, current prediction models are also unable to accurately predict their behaviour due to the complex failure mechanism that such bonded joints have. This study aims to determine whether a simple triangular cohesive zone model (CZM), which predefines the crack path, can reproduce the load–displacement curves of adhesives under various temperatures and strain rates. To achieve this, a calibrated CZM is used, adapting the model for reference joints and then validating it with independent test results conducted in a wide range of loading and environmental conditions. The tests were performed at speeds between 0.2 and 6000 mm/min and at three different temperatures ranging from −30 °C to 60 °C. Mode I fracture toughness was measured using the DCB (double cantilever beam) specimens. Using a simple triangular CZM may not be optimal for predicting the mechanical response of highly flexible adhesives with complex failure mechanisms and multiple crack paths. However, by correctly adjusting the cohesive zone properties for a limited set of reference conditions, it is possible to accurately predict the mechanical response of these joints across various test speeds and temperatures, significantly reducing costs and effort. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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17. Altered Host microRNAomics in HIV Infections: Therapeutic Potentials and Limitations.
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Santiago, Maria J., Chinnapaiyan, Srinivasan, Panda, Kingshuk, Rahman, Md. Sohanur, Ghorai, Suvankar, Rahman, Irfan, Black, Stephen M., Liu, Yuan, and Unwalla, Hoshang J.
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HIV infections , *HIV , *VIRUS diseases , *PROTEIN expression , *RESEARCH personnel - Abstract
microRNAs have emerged as essential regulators of health and disease, attracting significant attention from researchers across diverse disciplines. Following their identification as noncoding oligonucleotides intricately involved in post-transcriptional regulation of protein expression, extensive efforts were devoted to elucidating and validating their roles in fundamental metabolic pathways and multiple pathologies. Viral infections are significant modifiers of the host microRNAome. Specifically, the Human Immunodeficiency Virus (HIV), which affects approximately 39 million people worldwide and has no definitive cure, was reported to induce significant changes in host cell miRNA profiles. Identifying and understanding the effects of the aberrant microRNAome holds potential for early detection and therapeutic designs. This review presents a comprehensive overview of the impact of HIV on host microRNAome. We aim to review the cause-and-effect relationship between the HIV-induced aberrant microRNAome that underscores miRNA's therapeutic potential and acknowledge its limitations. [ABSTRACT FROM AUTHOR]
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- 2024
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18. Governance abhors a vacuum: The afterlives of major international organisations.
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Dijkstra, Hylke, Debre, Maria J., and Heinkelmann-Wild, Tim
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INTERNATIONAL cooperation , *INTERNATIONAL relations , *AFTERLIFE , *COMMISSIONERS , *REFUGEES - Abstract
International organisations have become increasingly contested resulting in worries about their decline and termination. While international organisation termination is indeed a regular event in international relations, this article shows that other institutions carry the legacy of terminated international organisations. We develop the novel concept of international organisation afterlife and suggest indicators to systematically assess it. Our analysis of 26 major terminated international organisations reveals legal-institutional and asset continuity in 21 cases. To further illustrate this point, the article zooms in on the afterlife of the International Institute of Agriculture in the Food and Agriculture Organization, the International Refugee Organization in the United Nations High Commissioner for Refugees, and the Western European Union in the European Union. In these three cases, international organisation afterlife inspired and structured the design of their successor institutions. While specific international organisations might be terminated, international cooperation therefore often lives on in other institutions. [ABSTRACT FROM AUTHOR]
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- 2024
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19. Improving Readability and Automating Content Analysis of Plastic Surgery Webpages With ChatGPT.
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Fanning, James E., Escobar-Domingo, Maria J., Foppiani, Jose, Lee, Daniela, Miller, Amitai S., Janis, Jeffrey E., and Lee, Bernard T.
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CHATGPT , *PLASTIC analysis (Engineering) , *PLASTIC surgery , *CONTENT analysis , *BREAST implants - Abstract
The quality and readability of online health information are sometimes suboptimal, reducing their usefulness to patients. Manual evaluation of online medical information is time-consuming and error-prone. This study automates content analysis and readability improvement of private-practice plastic surgery webpages using ChatGPT. The first 70 Google search results of "breast implant size factors" and "breast implant size decision" were screened. ChatGPT 3.5 and 4.0 were utilized with two prompts (1: general, 2: specific) to automate content analysis and rewrite webpages with improved readability. ChatGPT content analysis outputs were classified as hallucination (false positive), accurate (true positive or true negative), or omission (false negative) using human-rated scores as a benchmark. Six readability metric scores of original and revised webpage texts were compared. Seventy-five webpages were included. Significant improvements were achieved from baseline in six readability metric scores using a specific-instruction prompt with ChatGPT 3.5 (all P ≤ 0.05). No further improvements in readability scores were achieved with ChatGPT 4.0. Rates of hallucination, accuracy, and omission in ChatGPT content scoring varied widely between decision-making factors. Compared to ChatGPT 3.5, average accuracy rates increased while omission rates decreased with ChatGPT 4.0 content analysis output. ChatGPT offers an innovative approach to enhancing the quality of online medical information and expanding the capabilities of plastic surgery research and practice. Automation of content analysis is limited by ChatGPT 3.5's high omission rates and ChatGPT 4.0's high hallucination rates. Our results also underscore the importance of iterative prompt design to optimize ChatGPT performance in research tasks. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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20. The Microalgae Chlamydomonas for Bioremediation and Bioproduct Production.
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Bellido-Pedraza, Carmen M., Torres, Maria J., and Llamas, Angel
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PHOSPHORUS metabolism , *WASTE recycling , *SULFUR metabolism , *CHLAMYDOMONAS , *AGRICULTURE - Abstract
The extensive metabolic diversity of microalgae, coupled with their rapid growth rates and cost-effective production, position these organisms as highly promising resources for a wide range of biotechnological applications. These characteristics allow microalgae to address crucial needs in the agricultural, medical, and industrial sectors. Microalgae are proving to be valuable in various fields, including the remediation of diverse wastewater types, the production of biofuels and biofertilizers, and the extraction of various products from their biomass. For decades, the microalga Chlamydomonas has been widely used as a fundamental research model organism in various areas such as photosynthesis, respiration, sulfur and phosphorus metabolism, nitrogen metabolism, and flagella synthesis, among others. However, in recent years, the potential of Chlamydomonas as a biotechnological tool for bioremediation, biofertilization, biomass, and bioproducts production has been increasingly recognized. Bioremediation of wastewater using Chlamydomonas presents significant potential for sustainable reduction in contaminants and facilitates resource recovery and valorization of microalgal biomass, offering important economic benefits. Chlamydomonas has also established itself as a platform for the production of a wide variety of biotechnologically interesting products, such as different types of biofuels, and high-value-added products. The aim of this review is to achieve a comprehensive understanding of the potential of Chlamydomonas in these aspects, and to explore their interrelationship, which would offer significant environmental and biotechnological advantages. [ABSTRACT FROM AUTHOR]
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- 2024
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21. The communication of public aid in the European Union: the case of Next Generation European funds.
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Vilaplana-Aparicio, Maria J., Martín-Llaguno, Marta, and Bonet-Pizarro, Natalia
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PUBLIC communication - Abstract
In order to publicize the Next Generation funds (which will provide €806.9 billion in 2020 prices), each EU member state has had to create a portal that brings together all the information related to this instrument in accordance with the reference regulations. This study analyses the quality of the websites of the countries with the most resources: Spain, Italy, France, Germany, Poland, Greece, Romania, Portugal, Hungary, and the Czech Republic. Based on a validated protocol, the technical aspects, accessibility and search engine, structure and content, as well as the support of the help desks are reviewed. The results reveal that the best performing portals are Spain, France, Germany, and Italy; and that many portals suffer from incomplete, asymmetric and inaccessible information. Moreover, there is no complete correspondence between the countries that receive the most funds and those that are communicating the best. [ABSTRACT FROM AUTHOR]
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- 2024
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22. The effect of hearing loss on age-related differences in neural distinctiveness.
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Guerreiro, Maria J. S., Puschmann, Sebastian, Eck, Judith, Rienäcker, Franziska, Van Gerven, Pascal W.M., and Thiel, Christiane M.
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PRESBYCUSIS , *FUNCTIONAL magnetic resonance imaging , *AGE differences , *AUDITORY cortex , *OLDER people - Abstract
Age differences in cognitive performance have been shown to be overestimated if age-related hearing loss is not taken into account. Here, we investigated the role of age-related hearing loss on age differences in functional brain organization by assessing its impact on previously reported age differences in neural differentiation. To this end, we analyzed the data of 36 younger adults, 21 older adults with clinically normal hearing, and 21 older adults with mild-to-moderate hearing loss who had taken part in a functional localizer task comprising visual (i.e., faces, scenes) and auditory stimuli (i.e., voices, music) while undergoing functional magnetic resonance imaging. Evidence for reduced neural distinctiveness in the auditory cortex was observed only in older adults with hearing loss relative to younger adults, whereas evidence for reduced neural distinctiveness in the visual cortex was observed both in older adults with normal hearing and in older adults with hearing loss relative to younger adults. These results indicate that age-related dedifferentiation in the auditory cortex is exacerbated by age-related hearing loss. [ABSTRACT FROM AUTHOR]
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- 2024
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23. Ustekinumab is effective and safe in the long‐term treatment of erythrodermic psoriasis: Multicenter study in daily practice.
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Plana, Clara, Concha‐Garzón, Maria J., Rocamora, Vicen C., Baniandrés, Ofelia, Feltes, Rosa, López‐Estebaranz, Jose L., Garcías‐Ladaria, Joan, Carrascosa, Jose‐Manuel, Vilarrasa, Eva, Soria, Caridad, Navajas, Belen, Llamas‐Velasco, Mar, and Dauden, Esteban
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- 2024
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24. Sexual and Gender Minority Patients' First Pelvic Examination Experiences: What Clinicians Need to Know.
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Ruiz, Maria J., Chisholm, Briyana, de Martelly, Victoria, and Chor, Julie
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SEXUAL minorities , *PELVIC examination , *GENDER identity , *RACE , *SEXUAL orientation - Abstract
The aim of this study was to identify factors that influence the first pelvic exam experiences of sexual and gender minority (SGM) adolescents and young adults who were assigned female at birth (AFAB). Using purposive sampling, we recruited SGM AFAB individuals, ages 18-24, who had had at least 1 pelvic examination. Semi-structured interviews and an iterative approach allowed for the emergence of factors influencing the first pelvic exam experience. Items included in the final code directory had a Krippendorff's alpha intercoder reliability score greater than 0.7. Interviews were analyzed using ATLAS.ti. Thirty participants completed interviews. Fourteen participants identified as bisexual, 2 as gay, 1 as lesbian, 3 as pansexual, 8 as queer, and 2 as straight/heterosexual. Sixteen participants identified as cisgender, 9 as genderqueer/gender nonconforming, and 5 as transgender. Factors influencing the first pelvic exam experience were organized as patient- or clinician-level factors. The patient-level factors of gender identity, sexual orientation, history of sexual trauma, and participant's relationship to their body were central factors influencing the exam experience. Speculum insertion during the exam induced anxiety and pain for some. The clinician-level factors of gender, age, and race or ethnicity influenced the exam experience. Most participants preferred detailed communication. Participants offered recommendations to ensure gender-affirming, patient-centered care during the first pelvic exam. SGM AFAB individuals identified patient- and clinician-level factors influencing their first pelvic exam experiences. This study underscores the need for changes in medical education and health systems to ensure that SGM AFAB individuals have their needs met and feel comfortable in reproductive health settings. [ABSTRACT FROM AUTHOR]
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- 2024
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25. Meta-QTL and Candidate Gene Analyses of Agronomic Salt Tolerance and Related Traits in an RIL Population Derived from Solanum pimpinellifolium.
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Asins, Maria J. and Carbonell, Emilio A.
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LOCUS (Genetics) , *SALT-tolerant crops , *PLANT breeding , *SOLANUM , *GENES - Abstract
Breeding salt-tolerant crops is necessary to reduce food insecurity. Prebreeding populations are fundamental for uncovering tolerance alleles from wild germplasm. To obtain a physiological interpretation of the agronomic salt tolerance and better criteria to identify candidate genes, quantitative trait loci (QTLs) governing productivity-related traits in a population of recombinant inbred lines (RIL) derived from S. pimpinellifolium were reanalyzed using an SNP-saturated linkage map and clustered using QTL meta-analysis to synthesize QTL information. A total of 60 out of 85 QTLs were grouped into 12 productivity MQTLs. Ten of them were found to overlap with other tomato yield QTLs that were found using various mapping populations and cultivation conditions. The MQTL compositions showed that fruit yield was genetically associated with leaf water content. Additionally, leaf Cl− and K+ contents were related to tomato productivity under control and salinity conditions, respectively. More than one functional candidate was frequently found, explaining most productivity MQTLs, indicating that the co-regulation of more than one gene within those MQTLs might explain the clustering of agronomic and physiological QTLs. Moreover, MQTL1.2, MQTL3 and MQTL6 point to the root as the main organ involved in increasing productivity under salinity through the wild allele, suggesting that adequate rootstock/scion combinations could have a clear agronomic advantage under salinity. [ABSTRACT FROM AUTHOR]
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- 2024
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26. The Celiac‐Disease Superantigen Oligomerizes and Increases Permeability in an Enterocyte Cell Model.
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Herrera, Maria G., Amundarain, Maria J., Dörfler, Philipp W., and Dodero, Veronica I.
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GLUTELINS , *CELL permeability , *PEPTIDES , *CELIAC disease , *POLYPROLINE - Abstract
Celiac disease (CeD) is an autoimmune disorder triggered by gluten proteins, affecting approximately 1 % of the global population. The 33‐mer deamidated gliadin peptide (DGP) is a metabolically modified wheat‐gluten superantigen for CeD. Here, we demonstrate that the 33‐mer DGP spontaneously assembles into oligomers with a diameter of approximately 24 nm. The 33‐mer DGP oligomers present two main secondary structural motifs–a major polyproline II helix and a minor β‐sheet structure. Importantly, in the presence of 33‐mer DGP oligomers, there is a statistically significant increase in the permeability in the gut epithelial cell model Caco‐2, accompanied by the redistribution of zonula occludens‐1, a master tight junction protein. These findings provide novel molecular and supramolecular insights into the impact of 33‐mer DGP in CeD and highlight the relevance of gliadin peptide oligomerization. [ABSTRACT FROM AUTHOR]
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- 2024
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27. Das Zöliakie‐Superantigen Oligomerisiert und Erhöht die Permeabilität in einem Enterozyten‐Zellmodell.
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Herrera, Maria G., Amundarain, Maria J., Dörfler, Philipp W., and Dodero, Veronica I.
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PEPTIDES , *TRANSMISSION electron microscopy , *TIGHT junctions , *AMINO acids , *BIOMACROMOLECULES - Abstract
The study investigates the effects of the 33-mer deamidated gliadin peptide (DGP) on permeability in the intestinal epithelial cell model. It was found that the 33-mer DGP spontaneously aggregates into oligomers with a diameter of approximately 24 nm. These oligomers significantly increase permeability in the intestinal epithelial cell model and lead to a redistribution of the tight junction protein Zonula occludens-1. The results provide new insights into the effects of the 33-mer DGP in celiac disease and emphasize the importance of gliadin peptide oligomerization. The study examines the aggregation and secondary structure of the 33-mer deamidated gliadin peptide (DGP). It was found that the DGP forms oligomers and has a predominant PPII helix structure. Molecular dynamics simulations showed that the oligomers are stabilized by non-binding interactions and hydrogen bonds. The enrichment of the DGP peptide had effects on differentiated Caco-2 cells. The study investigates the effects of the 33-mer DGP peptide on the permeability of Caco-2 monolayers. It was found that the 33-mer DGP impairs the permeability of the monolayer and leads to disruption of the cell structure. This was demonstrated by a decrease in transepithelial electrical resistance (TEER) and changes in the localization of Zonula occludens-1 (ZO-1). The results suggest that the oligomerization of the 33-mer DGP plays a role in impairing intestinal permeability and may potentially lead to inflammation and gastrointestinal diseases. The study opens up new research opportunities related to celiac disease and other illnesses. [Extracted from the article]
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- 2024
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28. A computational analysis of the role of integrins and Rho-GTPases in the emergence and disruption of apical-basal polarization in renal epithelial cells.
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Hagelaars, Maria J., Nikolic, Milica, Vermeulen, Maud, Dekker, Sylvia, Bouten, Carlijn V. C., and Loerakker, Sandra
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EPITHELIAL cells , *KIDNEY tubules , *KIDNEY development , *EPITHELIAL-mesenchymal transition , *PROTEIN-protein interactions - Abstract
Apical-basal polarization in renal epithelial cells is crucial to renal function and an important trigger for tubule formation in kidney development. Loss of polarity can induce epithelial-to-mesenchymal transition (EMT), which can lead to kidney pathologies. Understanding the relative and combined roles of the involved proteins and their interactions that govern epithelial polarity may provide insights for controlling the process of polarization via chemical or mechanical manipulations in an in vitro or in vivo setting. Here, we developed a computational framework that integrates several known interactions between integrins, Rho-GTPases Rho, Rac and Cdc42, and polarity complexes Par and Scribble, to study their mutual roles in the emergence of polarization. The modeled protein interactions were shown to induce the emergence of polarized distributions of Rho-GTPases, which in turn led to the accumulation of apical and basal polarity complexes Par and Scribble at their respective poles, effectively recapitulating polarization. Our multiparametric sensitivity analysis suggested that polarization depends foremost on the mutual inhibition between Rac and Rho. Next, we used the computational framework to investigate the role of integrins and GTPases in the generation and disruption of polarization. We found that a minimum concentration of integrins is required to catalyze the process of polarization. Furthermore, loss of polarization was found to be only inducible via complete degradation of the Rho-GTPases Rho and Cdc42, suggesting that polarization is fairly stable once it is established. Comparison of our computational predictions against data from in vitro experiments in which we induced EMT in renal epithelial cells while quantifying the relative Rho-GTPase levels, displayed that EMT coincides with a large reduction in the Rho-GTPase Rho. Collectively, these results demonstrate the essential roles of integrins and Rho-GTPases in the establishment and disruption of apical-basal polarity and thereby provide handles for the in vitro or in vivo regulation of polarity. Author summary: Apical-basal polarization of renal epithelial cells lies at the foundation of the kidney's biological function and is the catalyst for tubulogenesis during kidney development. Although individual parts of the polarization pathway have been extensively studied before, a deep understanding of the combined and relative roles of the different proteins and/or protein interactions that lead to the emergence of polarization remains lacking due to the complexity of the various and integrated pathways. To dissect the complexity, we constructed a computational model that integrates known mechanisms of the polarization pathway. We found that the emergence of polarization is heavily dependent on a specific subset of the interactions between the involved proteins (i.e. integrins, Rho-GTPases, and polarity proteins Par and Scribble). Specifically, we concluded from our model that polarization could only be initiated when the number of integrins exceeded a threshold value, while polarization could only be disrupted in our model by complete degradation of certain Rho-GTPases. Collectively, these results indicate that apical-basal polarization is a stable process once it has emerged. Our findings help in deepening the understanding of the polarization pathway and provide new insights for regulating apical-basal polarization. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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29. Comparing frequencies of adolescent suicide attempters pre- and during COVID-19 pandemic school terms.
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Gracia-Liso, Rebeca, Portella, Maria J., Pujals-Altés, Elena, Puntí-Vidal, Joaquim, Llorens, Marta, Pàmias, Montserrat, Jiménez, Marc Fradera, Aguirrezabala, Itziar Montalvo, and Palao, Diego J.
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COVID-19 pandemic , *SUICIDE , *ATTEMPTED suicide , *SUICIDE risk factors , *TEENAGERS , *SEASONAL variations of diseases - Abstract
Background: The COVID-19 pandemic had and still have a major impact on adolescent mental health and consequently on suicidal behavior. However, few studies have investigated whether the pandemic has changed the patterns and the triggers of suicidality peaks in adolescents, e.g., seasonal patterns or family conflicts. We hypothesized that the pandemic modified suicidality rates: an increment of suicide attempts would be observed in the first semester of the academic year during COVID-19 pandemic compared to the same period of previous academic year; and the precipitating factors would be more related to social stressors during the pandemic school year. Methods: A retrospective cross-sectional study was conducted to assess the precipitating factors, also including school-related factors and cognitive skills, of adolescent suicide attempters occurred in the first and second semesters of the year before the pandemic lockdown (study periods 1 and 2) and the year after (study periods 3 and 4). Results: The sample consisted of 85 adolescents aged between 12 and 17 recruited consecutively from March 2019 to March 2021 at emergency ward because of suicide attempt. Forty-eight adolescents (55.3% of the sample) were attended before the lockdown (pre-pandemic group) and 38 (44.7%) the year after. The results showed a higher proportion of female suicide attempters in period 4 (Sept 2020-Feb 2021) respect to period 3 (Mar 2020-Aug 2020), i.e., pandemic semesters compared with the increment observed between period 2 and 1 (prepandemic semesters; Fisher's exact test = 4.73; p = 0.026). The multinomial regression models showed a significant effect in the frequency of adolescents who attempted suicide (ratio χ2 = 15.19, p = 0.019), accounted by the differences between period 4 (Sept 2020-Feb 2021) and period 1 (Mar 2019-Aug 2019), with depressive symptoms being a significant contributing factor (Exp(b) = 0.93; p = 0.04). Additionally, social triggers and age were found to be significant risk factors for suicide attempts in the first semester of the pandemic academic year (period 4) compared to the same semester of the pre-pandemic year (period 2; Exp(b) = 0.16, p = 0.01, and Exp(b) = 1.88, p = 0.006, respectively). Conclusions: During the pandemic, the decrement between first and second semester of the number of females attempting suicide was more pronounced than in the prepandemic school year -though this findings lacked statistical power due to very limited sample size-. Change in the frequency of adolescent attempting suicide in the different school periods was associated with greater severity of depressive symptoms. Social relations in back-to-school after the lockdown were also associated with the number of adolescents attempting suicide. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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30. Editorial: Ensuring safe drinking water: converting commitment into action and foresight.
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Hrudey, Steve E., Gunnarsdottir, Maria J., Contos, Annalisa, and Petterson, Susan
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WATER quality management , *DRINKING water quality , *CONTAMINATION of drinking water , *FECAL contamination , *WATER utilities - Abstract
This editorial from the Journal of Water & Health emphasizes the importance of ensuring safe drinking water and converting commitment into action. It discusses the history of guidelines for drinking water quality and the shift towards a preventive risk management approach. The document highlights the development and implementation of Water Safety Plans (WSPs) as a means to achieve health-based targets. It includes insights from various countries on the implementation of WSPs, the importance of an enabling environment, continual improvement, risk assessment, and addressing natural hazardous events. The text provides valuable case studies and perspectives from different countries and settings, offering insights into the challenges and successes of implementing WSPs. [Extracted from the article]
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- 2024
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31. Microbial Translocation and Gut Damage Are Associated With an Elevated Fast Score in Women Living With and Without HIV.
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Duarte, Maria J, Tien, Phyllis C, Kardashian, Ani, Ma, Yifei, Hunt, Peter, Kuniholm, Mark H, Adimora, Adaora A, Fischl, Margaret A, French, Audrey L, Topper, Elizabeth, Konkle-Parker, Deborah, Minkoff, Howard, Ofotokun, Ighovwerha, Plankey, Michael, Sharma, Anjali, and Price, Jennifer C
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HIV-positive women , *FATTY acid-binding proteins , *HIV infections , *PATH analysis (Statistics) - Abstract
Background Steatohepatitis is common in persons living with HIV and may be associated with gut microbial translocation (MT). However, few studies have evaluated the gut-liver axis in persons living with HIV. In the Women's Interagency HIV Study, we examined the associations of HIV and circulating biomarkers linked to MT and gut damage using the FibroScan–aspartate aminotransferase (FAST) score, a noninvasive surrogate for steatohepatitis with advanced fibrosis. Methods Among 883 women with HIV and 354 without HIV, we used multivariable regression to examine the associations of HIV and serum biomarkers linked to MT and gut damage (kynurenine and tryptophan ratio, intestinal fatty acid–binding protein, soluble CD14, and soluble CD163) with a log-transformed FAST score after adjusting for key covariates. We used a path analysis and mediation models to determine the mediating effect of each biomarker on the association of HIV with FAST. Results HIV infection was associated with a 49% higher FAST score. MT biomarker levels were higher in women with HIV than women without HIV (P <.001 for each). MT biomarkers mediated 13% to 32% of the association of HIV and FAST score. Conclusions Biomarkers linked to MT and gut damage are associated with a higher FAST score and mediate the association of HIV with a higher FAST score. Our findings suggest that MT may be an important mechanism by which HIV increases the risk of steatohepatitis with advanced fibrosis. [ABSTRACT FROM AUTHOR]
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- 2024
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32. 'I can't unsee what I've seen:' Doing Social Justice Pedagogy in the research methods classroom.
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Veri, Maria J., Taylor, Sherria, Eliason, Michele, Bolter, Nicole D., and van Olphen, Juliana
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SOCIAL justice , *RESEARCH methodology , *EDUCATION research , *PSYCHOLOGICAL vulnerability , *COLLEGE student attitudes ,UNDERGRADUATE education - Abstract
Discourse surrounding social justice pedagogy (SJP) as a means of addressing the historic inequities in education is increasing in education research. Qualitative research, however, examining experiences of educators doing SJP is still lacking, particularly in higher education. We trained three faculty instructors of undergraduate research courses in principles of SJP and several classroom activities grounded in these principles. Analysis of critically-reflexive reflections and interviews revealed four themes related to doing SJP: Intentionality; Vulnerability; Holding Tension; and Meaningful Teaching Experience. Findings provide an intrapersonal framework for doing SJP and implications for supportive learning circles and institutional support. [ABSTRACT FROM AUTHOR]
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- 2024
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33. Progressive loss of cortical gray matter in first episode psychosis patients with auditory hallucinations.
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Garcia-Marti, Gracian, Escarti, Maria J., Nacher, Juan, Perez-Rando, Marta, Mane, Anna, Usall, Judith, Berrocoso, Esther, Pomarol-Clotet, Edith, Lopez-Ilundain, Jose M., Cuesta, Manuel J., Rodriguez-Jimenez, Roberto, Gonzalez-Pinto, Ana, Mar, Lorea, Ibañez, Angela, Roldan, Alexandra, Janssen, Joost, Parellada, Mara, Amoretti, Silvia, Bernardo, Miquel, and Sanjuan, Julio
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AUDITORY hallucinations , *GRAY matter (Nerve tissue) , *MAGNETIC resonance imaging , *PSYCHOSES , *VOXEL-based morphometry - Abstract
Previous longitudinal magnetic resonance imaging studies have shown progressive gray matter (GM) reduction during the earliest phases of schizophrenia. It is unknown whether these progressive processes are homogeneous in all groups of patients. One way to obtain more valid findings is to focus on the symptoms. Auditory hallucinations (AHs) are frequent and reliable symptoms of psychosis. The present study aims to analyze whether longitudinal changes in structural abnormalities in cortical regions are related to the presence of AHs and the intensity of psychotic symptoms in a large sample. A Magnetic Resonance (MR) voxel-based morphometry analysis was applied to a group of 128 first episodes psychosis (FEP) patients (63 patients with AHs and 65 patients without AHs) and 78 matched healthy controls at baseline and at a 2-year follow-up. At baseline, FEP patients exhibited significant GM volume reductions in the temporal, frontal and precentral regions. At follow-up, FEP patients exhibited GM volume changes in the temporal, Rolandic, frontal, precentral and insula regions. At baseline, no significant differences were found between FEP patients with and without AHs. At follow-up, while FEP patients with AHs showed less GM volume in temporal and frontal lobes, non-AH FEP patients showed reductions in the frontal, precentral and fusiform areas. PANSS scores showed statistically significant correlations with GM volume reductions at baseline and follow-up. Brain cortical loss in the early phases of psychosis is not associated with potentially transitory AHs; however, brain structural changes may emerge as AHs appear in chronic patients. [ABSTRACT FROM AUTHOR]
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- 2024
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34. Paternal peri‐conceptional physical activity and the risk of congenital heart disease in offspring: A case–control study.
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Atieh, Ornina, Azzi, Nohad Maria J., Lteif, Georges J., Atieh, Ninar A., Germanos, Nadim Y., Grandjean, Valérie, Yarkiner, Zalihe, Saliba, Zakhia, Khalife, Marie‐Claude Fadous, and Raad, Georges
- Abstract
Background Objectives Materials and methods Results Discussion and conclusion Genetic and environmental factors have been shown to contribute to the development of congenital heart disease (CHD). To date, the focus of scientific articles has primarily centered on genetics and maternal environmental factors, with comparatively less attention given to paternal risk factors.This study aims to investigate the potential association between paternal pre‐conceptional physical activity levels (PA), along with paternal peri‐conceptional smoking and alcohol consumption, and the risk of CHD in offspring.An observational case–control study was conducted in Lebanon, with 279 participants, aiming to investigate potential risk factors for CHD. We included children with confirmed CHD, born between 2012 and 2022. Controls born in the same timeframe were selected randomly from the general population using online questionnaire forms. Mean age of children included was 6 years old (0–10). The pre‐conceptional PA was assessed using the Global Physical Activity Questionnaire validated in Arabic. In addition, paternal smoking, alcohol consumption, and maternal risk factors were collected.The study included 128 CHD cases (45.9%) and their parents, as well as 151 healthy infants (54.1%) and their parents. There were no statistically significant variations in the alcohol consumption noted between the fathers in the case and control groups (
p = 0.18). The paternal involvement in recreational‐related PA during the peri‐conception period was associated with a reduced risk of the CHD development in offspring by 46.9% (OR = 0.531, 95% CI: 0.301–0.936,p = 0.029). Additionally, increasing paternal total sitting time by 1 h above the average, which was approximately 260 min (4 h), increased the risk of CHD in offspring by 0.4% (p = 0.001). Moreover, paternal smoking exhibited an apparent association with a 56% increased risk of offspring developing CHD, notwithstanding that the confidence intervals included the null (OR = 1.56, 95% CI: 0.86–2.8,p = 0.136).This observational study is the first to report a potential association between paternal PA, and CHD in offspring. This study aligns with previous reports, advocating for the paternal engagement in PA and the adoption of healthy lifestyle habits, especially during the critical stages of conception. Such practices are strongly recommended to enhance fertility and promote optimal health for offspring. However, due to the subjectivity in reporting PA and lack of molecular proof, additional prospective and molecular studies are required to validate these findings. [ABSTRACT FROM AUTHOR]- Published
- 2024
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35. Comparison of pepper accessions acting as rootstocks: A case with low P inputs.
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PEREZ-CORDOBA, Maria J., DIEZ-DIAZ, Monica, de LUIS, Ana, CASTELL-ZEISING, Vicente, RODRIGUEZ-BURRUEZO, Adrian, and FITA, Ana
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CAPSICUM annuum , *ROOTSTOCKS , *PLANT roots , *PLANT growth , *BIOMASS - Abstract
Fertilization is essential for maintaining production in agriculture. Yet, in too high quantity it causes high impact in environment and in farmers economy. This is especially true in the case of phosphorus (P) fertilization. Finding genotypes adapted to low P conditions may help to reduce the problem. P efficiency depends to some extend on the ability of the roots to acquire this mineral, therefore using efficient rootstocks would provide a higher acquisition of P, maintaining the good characteristics of the scion varieties. In this study, twenty diverse pepper accessions (Capsicum annuum L.) have been evaluated as possible rootstocks to increase P acquisition and yield in pepper under no P fertilization. Plant production, biomass, P content and physiological phosphorous use efficiency were evaluated for 'Lobo' variety grafted onto different rootstocks. In addition, root traits, measured manually (shovelomics) and semi-automatically (Winrhizo) were studied. The results showed a great diversity in the root traits for the studied accessions. These root traits changed significantly when the accessions act as rootstock, indicating great rootstock/scion interactions. In general, all the rootstocks adapted their root size and shape to that displayed by 'Lobo' root system. Some accessions seemed to have some incompatibility whereas some others enhanced the scion performance. It was possible to identify some genotypes suitable to act as rootstocks for pepper with good performance under low P conditions. Root length, root weight, branching, and root angle were identified as key root traits for plant growth and P acquisition under low P conditions. [ABSTRACT FROM AUTHOR]
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- 2024
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36. Effects of climate on the distribution and conservation of commonly observed European earthworms.
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Zeiss, Romy, Briones, Maria J. I., Mathieu, Jérome, Lomba, Angela, Dahlke, Jessica, Heptner, Laura‐Fiona, Salako, Gabriel, Eisenhauer, Nico, and Guerra, Carlos A.
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SOIL biology , *EARTHWORMS , *NUMBERS of species , *INDEPENDENT variables , *NATURE conservation , *ECOSYSTEMS - Abstract
Belowground biodiversity distribution does not necessarily reflect aboveground biodiversity patterns, but maps of soil biodiversity remain scarce because of limited data availability. Earthworms belong to the most thoroughly studied soil organisms and—in their role as ecosystem engineers—have a significant impact on ecosystem functioning. We used species distribution modeling (SDMs) and available data sets to map the spatial distribution of commonly observed (i.e., frequently recorded) earthworm species (Annelida, Oligochaeta) across Europe under current and future climate conditions. First, we predicted potential species distributions with commonly used models (i.e., MaxEnt and Biomod) and estimated total species richness (i.e., number of species in a 5 × 5 km grid cell). Second, we determined how much the different types of protected areas covered predicted earthworm richness and species ranges (i.e., distributions) by estimating the respective proportion of the range area. Earthworm species richness was high in central western Europe and low in northeastern Europe. This pattern was mainly associated with annual mean temperature and precipitation seasonality, but the importance of predictor variables to species occurrences varied among species. The geographical ranges of the majority of the earthworm species were predicted to shift to eastern Europe and partly decrease under future climate scenarios. Predicted current and future ranges were only poorly covered by protected areas, such as national parks. More than 80% of future earthworm ranges were on average not protected at all (mean [SD] = 82.6% [0.04]). Overall, our results emphasize the urgency of considering especially vulnerable earthworm species, as well as other soil organisms, in the design of nature conservation measures. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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37. Interprofessional education for healthcare professionals. A BEME realist review of what works, why, for whom and in what circumstances in undergraduate health sciences education: BEME Guide No. 83.
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Krystallidou, Demi, Kersbergen, Maria J., de Groot, Esther, Fluit, Cornelia R. M. G., Kuijer-Siebelink, Wietske, Mertens, Fien, Oosterbaan-Lodder, Saskia C. M., Scherpbier, Nynke, Versluis, Marco A. C, and Pype, Peter
- Abstract
AbstractAimMethodsResultsDiscussionTo provide an evidence-informed program theory (PT) for Interprofessional Education (IPE) that adds to the knowledge base of how IPE in undergraduate health sciences education works.We undertook a realist review of the literature and synthesis of the evidence combined with stakeholder experience. Our initial program theory (IPT), built around development, delivery and evaluation of IPE interventions, was tested and refined following an in-depth search of the literature and consultation with stakeholders. The literature (2010-2022) was selected based on the realist criteria of
relevance andrigor , as well as on conceptual richness of the studies.Our PT is built upon 124 CMOs (Context of IPE interventions, Mechanisms that fired within that context, and IPE Outcomes), from 58 studies. Our PT comprises an array of elements found in the Context, including traits and behavioral displays of students and facilitators, and discusses four Mechanisms (feeling responsible, feeling enthusiastic/excited, feeling safe to take risks , andfeeling ready) , which are likely to lead to outcomes related to the Interprofessional Education Collaborative (sub)competencies.Results were linked to learning theories to further build our understanding. The PT can serve as a guide for the development, delivery, and evaluation of IPE interventions. [ABSTRACT FROM AUTHOR]- Published
- 2024
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38. Development of active packaging film reinforced with nano cellulose extracted from Palmyra palm (Borassus flabellifer) residues for prolonging the shelf life of chicken meat.
- Author
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Mukkadan, Maria J., Preetha, Radhakrishnan, and Sreejit, V.
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CHICKEN as food , *PACKAGING film , *NEEM oil , *PACKAGING materials , *CELLULOSE , *EDIBLE coatings , *NITROXYL , *LIPIDS , *POLYMERS - Abstract
Summary: The development of new packaging materials with biodegradability is gaining more importance nowadays. The packaging materials produced using cellulose can reduce the environmental pollution caused by synthetic polymers. The nanocellulose was extracted from the Borassus flabellifer husk by combining TEMPO (2,2,6,6‐tetramethylpiperidine 1‐oxyl radical)‐mediated oxidation and ultrasonication. The packaging film was developed by the combination of arrowroot starch (5 g), glycerol (2 g), nanocellulose suspension (5%) and neem oil (1 mL) using the solution casting technique. The film was then analysed for different properties, including tensile strength, contact angle measurement, antioxidant properties and antimicrobial properties. The active packaging film showed improved mechanical, antimicrobial and optical properties than the normal starch film. The application study of the active films showed that the chicken meat packed in pure starch films spoiled faster with greater changes in pH, weight loss and hardness than the chicken packed in active films. The incorporation of neem oil in the film prevented the lipid oxidation of chicken meat due to the antioxidant activity of phenolic compounds present in neem oil and resulted in lower peroxide values. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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39. Mitral valve transcriptome analysis in thirty-four age-matched Cavalier King Charles Spaniels with or without congestive heart failure caused by myxomatous mitral valve disease.
- Author
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Reimann, Maria J., Cremer, Signe, Christiansen, Liselotte, Ibragimov, Emil, Gao, Fei, Cirera, Susanna, Fredholm, Merete, Olsen, Lisbeth H., and Karlskov-Mortensen, Peter
- Abstract
We here report the results of a mitral valve transcriptome study designed to identify genes and molecular pathways involved in development of congestive heart failure (CHF) following myxomatous mitral valve disease (MMVD) in dogs. The study is focused on a cohort of elderly age-matched dogs (n = 34, age ~ 10 years) from a single breed—Cavalier King Charles Spaniels (CKCS)—with a high incidence of MMVD. The cohort comprises 19 dogs (10♀, 9♂) without MMVD-associated CHF, and 15 dogs (6♀, 9♂) with CHF caused by MMVD; i.e., we compare gene expression in breed and age-matched groups of dogs, which only differ with respect to CHF status. We identify 56 genes, which are differentially expressed between the two groups. In this list of genes, we confirm an enrichment of genes related to the TNFβ-signaling pathway, extracellular matrix organization, vascular development, and endothelium damage, which also have been identified in previous studies. However, the genes with the greatest difference in expression between the two groups are CNTN3 and MYH1. Both genes encode proteins, which are predicted to have an effect on the contractile activity of myocardial cells, which in turn may have an effect on valvular performance and hemodynamics across the mitral valve. This may result in shear forces with impact on MMVD progression. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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40. A qualitative analysis of the breastfeeding experiences of mothers who are nurses and nutritionists.
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Mendoza-Gordillo, Maria J.
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BREASTFEEDING , *QUALITATIVE research , *NUTRITIONISTS , *WORK environment , *INTERVIEWING , *PROFESSIONAL identity , *LACTATION , *WORKING mothers , *RESEARCH methodology , *BREASTFEEDING promotion , *PUBLIC health , *PSYCHOSOCIAL factors , *PSYCHOLOGY of nurses - Abstract
From a medical standpoint, breastmilk is the optimal option for feeding a baby, relegating the cultural, social, and material determinants to breastfeeding. Worldwide, breastfeeding rates are low, especially among working mothers. Healthcare providers have low breastfeeding rates due to several barriers to lactation, i.e. work schedule andlack of private places for pumping. A descriptive qualitative methodology was applied to examine the breastfeeding experiences of Ecuadorian mothers who are healthcare professionals. Twenty healthcare professionals who breastfed their babies took part in the research. Data gathering employed synchronous semi-structured interviews in Spanish. The data analysis followed the Phronetic Iterative Approach. Women shifted the preconceived idea of the ideal breastfeeding scenario concerning duration, promotion, and support, ideals which are constructed in their training as healthcare professionals. Although these women believe that breast milk and breastfeeding is the best way to feed a baby, the internalized ideal of breastfeeding shifted with the experience of motherhood. Although they had that clash between the ideal and the external reality, they continued breastfeeding their babies, and those experiences resulted in them improving their professional practice. This study demonstrated that breastfeeding for this group of women appears to be a unique relational and identity negotiation process. The findings emphasize that experiencing breastfeeding for this group of healthcare providers positively shifted how they communicate breastfeeding with their patients in the clinical encounter. Ensuring that healthcare professionals acquire a different approach for educating and communicating about lactation is an essential determinant in efforts to improve breastfeeding rates in Ecuador. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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41. Evaluating Osteoporosis in Chronic Kidney Disease: Both Bone Quantity and Quality Matter.
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Lloret, Maria J., Fusaro, Maria, Jørgensen, Hanne S., Haarhaus, Mathias, Gifre, Laia, Alfieri, Carlo M., Massó, Elisabet, D'Marco, Luis, Evenepoel, Pieter, and Bover, Jordi
- Subjects
- *
LUMBAR vertebrae , *CHRONIC kidney failure , *RENAL osteodystrophy , *BONE diseases , *DUAL-energy X-ray absorptiometry , *BONE density - Abstract
Bone strength is determined not only by bone quantity [bone mineral density (BMD)] but also by bone quality, including matrix composition, collagen fiber arrangement, microarchitecture, geometry, mineralization, and bone turnover, among others. These aspects influence elasticity, the load-bearing and repair capacity of bone, and microcrack propagation and are thus key to fractures and their avoidance. In chronic kidney disease (CKD)-associated osteoporosis, factors traditionally associated with a lower bone mass (advanced age or hypogonadism) often coexist with non-traditional factors specific to CKD (uremic toxins or renal osteodystrophy, among others), which will have an impact on bone quality. The gold standard for measuring BMD is dual-energy X-ray absorptiometry, which is widely accepted in the general population and is also capable of predicting fracture risk in CKD. Nevertheless, a significant number of fractures occur in the absence of densitometric World Health Organization (WHO) criteria for osteoporosis, suggesting that methods that also evaluate bone quality need to be considered in order to achieve a comprehensive assessment of fracture risk. The techniques for measuring bone quality are limited by their high cost or invasive nature, which has prevented their implementation in clinical practice. A bone biopsy, high-resolution peripheral quantitative computed tomography, and impact microindentation are some of the methods established to assess bone quality. Herein, we review the current evidence in the literature with the aim of exploring the factors that affect both bone quality and bone quantity in CKD and describing available techniques to assess them. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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42. Glomerular and tubular effects of dapagliflozin, eplerenone and their combination in patients with chronic kidney disease: A post‐hoc analysis of the ROTATE‐3 study.
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Lieverse, Tom T. G. F., Puchades, Maria J., Mulder, Udo D. J., Provenzano, Michele, Krenning, Guido, Jongs, Niels, Wink, Simon E., Slart, Riemer H. J. A., Andreucci, Michele, D'Marco, Luis, De Nicola, Luca, Gorriz, Jose L., and Heerspink, Hiddo J. L.
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- *
COPEPTINS , *CHRONIC kidney failure , *CHRONICALLY ill , *DAPAGLIFLOZIN , *MINERALOCORTICOID receptors , *KIDNEY failure - Abstract
Aim: Sodium‐glucose co‐transporter 2 inhibitors and mineralocorticoid receptor antagonists reduce albuminuria and the risk of kidney failure. The aim of this study was to investigate the effects of both agents alone and in combination on markers of the glomerular endothelial glycocalyx and tubular function. Methods: This post‐hoc analysis utilized data of the ROTATE‐3 study, a randomized cross‐over study in 46 adults with chronic kidney disease and urinary albumin excretion ≥100 mg/24 h, who were treated for 4 weeks with dapagliflozin, eplerenone or its combination. The effects of dapagliflozin, eplerenone and the combination on outcome measures such as heparan sulphate, neuro‐hormonal markers and tubular sodium handling were assessed with mixed repeated measures models. Results: The mean percentage change from baseline in heparan sulphate after 4 weeks treatment with dapagliflozin, eplerenone or dapagliflozin‐eplerenone was −34.8% (95% CI −52.2, −10.9), −5.9% (95% CI −32.5, 31.3) and −28.1% (95% CI −48.4, 0.1) respectively. The mean percentage change from baseline in plasma aldosterone was larger with eplerenone [38.9% (95% CI 2.8, 87.7)] and dapagliflozin‐eplerenone [32.2% (95% CI −1.5, 77.4)], compared with dapagliflozin [−12.5% (95% CI −35.0, 17.8)], respectively. Mean percentage change from baseline in copeptin with dapagliflozin, eplerenone or dapagliflozin‐eplerenone was 28.4% (95% CI 10.7, 49.0), 4.2% (95% CI −10.6, 21.4) and 23.8% (95% CI 6.6, 43.9) respectively. Dapagliflozin decreased proximal absolute sodium reabsorption rate by 455.9 mmol/min (95% CI −879.2, −32.6), while eplerenone decreased distal absolute sodium reabsorption rate by 523.1 mmol/min (95% CI −926.1, −120.0). Dapagliflozin‐eplerenone decreased proximal absolute sodium reabsorption [−971.0 mmol/min (95% CI −1411.0, −531.0)], but did not affect distal absolute sodium reabsorption [−9.2 mmol/min (95% CI −402.0, 383.6)]. Conclusions: Dapagliflozin and eplerenone exert different effects on markers of glomerular and tubular function supporting the hypothesis that different mechanistic pathways may account for their kidney protective effects. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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43. Hydrogen Sulfide Producers Drive a Diarrhea-Like Phenotype and a Methane Producer Drives a Constipation-Like Phenotype in Animal Models.
- Author
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Villanueva-Millan, Maria J., Leite, Gabriela, Morales, Walter, Sanchez, Maritza, Parodi, Gonzalo, Weitsman, Stacy, Celly, Shreya, Cohrs, Daniel, Do, Huongly, Barlow, Gillian M., Mathur, Ruchi, Rezaie, Ali, and Pimentel, Mark
- Subjects
- *
HYDROGEN sulfide , *IRRITABLE colon , *DEFECATION , *ANIMAL models in research , *PHENOTYPES , *HIGH-carbohydrate diet , *METHANE - Abstract
Background: We recently demonstrated that diarrhea-predominant irritable bowel syndrome (IBS-D) subjects have higher relative abundance (RA) of hydrogen sulfide (H2S)-producing Fusobacterium and Desulfovibrio species, and constipation-predominant IBS (IBS-C) subjects have higher RA of methanogen Methanobrevibacter smithii. Aims: In this study, we investigate the effects of increased methanogens or H2S producers on stool phenotypes in rat models. Methods: Adult Sprague–Dawley rats were fed high-fat diet (HFD) for 60 days to increase M. smithii levels, then gavaged for 10 days with water (controls) or methanogenesis inhibitors. To increase H2S producers, rats were gavaged with F. varium or D. piger. Stool consistency (stool wet weight (SWW)) and gas production were measured. 16S rRNA gene sequencing was performed on stool samples. Results: In HFD diet-fed rats (N = 30), stool M. smithii levels were increased (P < 0.001) after 52 days, correlating with significantly decreased SWW (P < 0.0001) at 59 days (R = − 0.38, P = 0.037). Small bowel M. smithii levels decreased significantly in lovastatin lactone-treated rats (P < 0.0006), and SWW increased (normalized) in lovastatin hydroxyacid-treated rats (P = 0.0246), vs. controls (N = 10/group). SWW increased significantly in D. piger-gavaged rats (N = 16) on day 10 (P < 0.0001), and in F. varium-gavaged rats (N = 16) at all timepoints, vs. controls, with increased stool H2S production. 16S sequencing revealed stool microbiota alterations in rats gavaged with H2S producers, with higher relative abundance (RA) of other H2S producers, particularly Lachnospiraceae and Bilophila in F. varium-gavaged rats, and Sutterella in D. piger-gavaged rats. Conclusions: These findings suggest that increased M. smithii levels result in a constipation-like phenotype in a rat model that is partly reversible with methanogenesis inhibitors, whereas gavage with H2S producers D. piger or F. varium results in increased colonization with other H2S producers and diarrhea-like phenotypes. This supports roles for the increased RA of methanogens and H2S producers identified in IBS-C and IBS-D subjects, respectively, in contributing to stool phenotypes. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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44. A combined approach to the vibrational characterization of medieval paints on parchment: Handheld Raman spectroscopy and micro‐SORS.
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Vieira, Márcia, Melo, Maria J., Conti, Claudia, and Pozzi, Federica
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RAMAN spectroscopy , *PARCHMENT , *ILLUMINATION of books & manuscripts , *PAINT materials , *MEDIEVAL manuscripts , *PAINT , *COMPLEMENT receptors - Abstract
A careful analytical study of the paint materials used in medieval illuminated manuscripts and their respective formulations is critical to their preservation. Due to their high value and fragile nature, access to these objects is often limited. Therefore, the development of ad‐hoc methodologies allowing researchers to collect data in the least invasive way possible is an essential task in conservation science. This article shows the potential of a combined approach that complements handheld Raman spectroscopy with micro‐SORS for the characterization of medieval paints. This methodology was tested on a reference collection of mock‐up samples prepared as pure, mixture, and layered paints on parchment, based on historical information regarding paint formulations from Iberian scriptoria. Conventional Raman analysis, carried out by means of two handheld spectrometers, was found particularly effective for materials identification in pure paints and multi‐component formulations of increasing complexity. Complementing this data, micro‐SORS proved decisive in differentiating between mixture and layered paints in most mock‐ups examined, yielding detailed information about the stratigraphy of reference samples produced through the overlaying of different paints. This combined methodology may be helpful to researchers who would like to approach the vibrational characterization of paints applied onto fragile artifacts and supports in a totally non‐invasive manner. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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45. Design and Development of an Edible Coating for a Ready-to-Eat Fish Product.
- Author
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Bremenkamp, Ina and Sousa-Gallagher, Maria J.
- Subjects
- *
EDIBLE coatings , *POLYSACCHARIDES , *FISH as food , *CHITOSAN , *ALGINATES , *ALGINIC acid , *MICROBIAL growth - Abstract
The application of chitosan and alginate coatings for a ready-to-eat (RTE) baked fish product was studied. An experimental design was used to investigate the effect of coating a polysaccharide concentration and glycerol addition on the safety (microbial growth) and quality (water loss and lipid oxidation) of an RTE fish product under optimal and abused storage conditions. The results showed that a chitosan coating with 1% (w/v) chitosan in 1% (v/v) acetic acid and 15% (w/w chitosan) glycerol, or a 1% (w/v) alginate coating with no glycerol and no crosslinking, showed the best performance in controlling the tested safety and quality parameters. The desirability method was used to identify the shelf lives of chitosan, alginate, and double-coated RTE products. The chitosan-coated samples showed the best performance with a three-fold shelf-life extension compared to the uncoated products stored at 4 °C. Moreover, the tested coatings demonstrated their ability to provide protective functions under abused storage conditions. These results strongly suggest that edible coatings have significant potential in enhancing the shelf life and safety of ready-to-eat (RTE) fish products. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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- View/download PDF
46. Exploring machine learning modeling approaches for biomass and carbon dioxide weight estimation in Lebanon cedar trees.
- Author
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Diamantopoulou, Maria J., Çömez, Aydin, Özçelik, Ramazan, and Güner, Sükrü Teoman
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MACHINE learning , *ARTIFICIAL neural networks , *CARBON dioxide , *ATMOSPHERIC carbon dioxide , *BIOMASS estimation - Abstract
Accurate estimates of total tree biomass are of critical importance to obtain reliable estimation of the carbon dioxide weight sequestered from the atmosphere by trees and forest stands. This information has the potential to guide appropriate forest management decisions which allow for both the improvement of forest sustainability and the implementation of multi-task reforestation designs aimed to mitigate the detrimental effects of climate change. The current laborious and tree-destructive procedures needed to attain such information has led to the development of machine learning (ML) models aimed at providing accurate estimations of the tree biomass sequestering the atmospheric carbon dioxide. We tested the Levenberg-Marquardt artificial neural network and the support vector machine for regression techniques as an alternative to non-linear allometric regression (NLR) modelling approaches commonly used for tree biomass estimation. We tested the developed ML models using primary ground-truth data from the Lebanon cedar forests in the Western Inner Anatolian regions of Turkey, and their predictions were compared to those of NLR models developed using the same dataset. The results showed that the ML approaches outperformed the NLR models in accurately estimating tree biomass and its components (above- and belowground dry biomass, dry branches biomass, etc.), and the support vector regression (SVR) models gave the highest accuracy of estimates. Therefore, the carbon dioxide weight sequestered in Lebanon cedar trees were reliably estimated, with the aim of supporting the best forest management practices to be applied in Lebanon cedar tree stands in Turkey. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
47. Projections of winter polynyas and their biophysical impacts in the Ross Sea Antarctica.
- Author
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DuVivier, Alice K., Molina, Maria J., Deppenmeier, Anna-Lena, Holland, Marika M., Landrum, Laura, Krumhardt, Kristen, and Jenouvrier, Stephanie
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- *
POLYNYAS , *SEA ice , *MARINE parks & reserves , *WINTER , *BOTTOM water (Oceanography) , *EDDY flux - Abstract
This study investigates winter polynyas in the southern Ross Sea, Antarctica where several polynyas are known to form. Coastal polynyas are areas of lower sea ice concentration and/or thickness along the coast that are otherwise surrounded by more extensive, thicker sea ice pack. Polynyas are also locations where organisms can exploit both the ice substrate and pelagic resources. Using a self organizing map algorithm, we identify polynya events in the Community Earth System Model Version 2 Large Ensemble (CESM2-LE). The neural network algorithm is able to identify polynya events without imposing an ice concentration or thickness threshold, as is often done when identifying polynyas. The CESM2-LE produces a wintertime polynya feature comparable in size and location to the Ross Sea polynya, and during polynya events there are large turbulent heat fluxes and export of sea ice from the Ross Sea. In the CESM2-LE polynya event frequency is projected to decrease sharply in the later twentyfirst century, leading to increasing sea ice concentrations and thicknesses in the region. The drivers of the polynya frequency decline are likely both large scale circulation changes and local atmosphere and ocean feedbacks. If declines in wintertime polynya frequency over the twentyfirst century do occur they may impact Antarctic Bottom Water formation and local net primary productivity. Thus, better understanding potential local and unexpected sea ice changes in the Ross Sea is important for both assessing climate system impacts and ecological impacts on the Ross Sea ecosystem, which is currently protected by an internationally recognized marine protected area. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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- View/download PDF
48. Receptor-associated kinases control the lipid provisioning program in plant-fungal symbiosis.
- Author
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Ivanov, Sergey and Harrison, Maria J.
- Abstract
The mutualistic association between plants and arbuscular mycorrhizal (AM) fungi requires intracellular accommodation of the fungal symbiont and maintenance by means of lipid provisioning. Symbiosis signaling through lysin motif (LysM) receptor-like kinases and a leucine-rich repeat receptor-like kinase DOES NOT MAKE INFECTIONS 2 (DMI2) activates transcriptional programs that underlie fungal passage through the epidermis and accommodation in cortical cells. We show that two Medicago truncatula cortical cell-specific, membrane-bound proteins of a CYCLIN-DEPENDENT KINASE-LIKE (CKL) family associate with, and are phosphorylation substrates of, DMI2 and a subset of the LysM receptor kinases. CKL1 and CKL2 are required for AM symbiosis and control expression of transcription factors that regulate part of the lipid provisioning program. Onset of lipid provisioning is coupled with arbuscule branching and with the REDUCED ARBUSCULAR MYCORRHIZA 1 (RAM1) regulon for complete endosymbiont accommodation. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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49. Polymeric Nanoparticles for Biomedical Applications.
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Andrade, Stéphanie, Ramalho, Maria J., and Loureiro, Joana A.
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- *
NANOMEDICINE , *NANOPARTICLES , *BIOPOLYMERS , *DEEP brain stimulation , *POLYMER clay - Abstract
This document is a summary of a special issue on polymeric nanoparticles (NPs) for biomedical applications. The issue includes research papers and reviews on the current applications of polymeric NPs in healthcare, such as disease prevention, diagnosis, and treatment. The articles cover a range of topics, including breast cancer therapy, colon cancer therapy, cervical cancer therapy, malaria treatment, enteric infection treatment, dental infection treatment, inflammation treatment, tissue engineering, and brain disorder treatment. The articles discuss the synthesis, characterization, and therapeutic efficacy of various polymeric NPs, as well as their potential for improving drug delivery and reducing side effects. The issue also addresses challenges and strategies for enhancing the effectiveness of NPs in clinical practice. Overall, the articles contribute to the ongoing research in the field of polymeric NPs for medical applications. [Extracted from the article]
- Published
- 2024
- Full Text
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50. Systematic analysis of variants escaping nonsense-mediated decay uncovers candidate Mendelian diseases.
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Torene, Rebecca I., Guillen Sacoto, Maria J., Millan, Francisca, Zhang, Zhancheng, McGee, Stephen, Oetjens, Matthew, Heise, Elizabeth, Chong, Karen, Sidlow, Richard, O'Grady, Lauren, Sahai, Inderneel, Martin, Christa L., Ledbetter, David H., Myers, Scott M., Mitchell, Kevin J., and Retterer, Kyle
- Subjects
- *
GENETIC variation , *MEDICAL genetics , *GENETIC disorders , *RARE diseases , *PHENOTYPES - Abstract
Protein-truncating variants (PTVs) near the 3′ end of genes may escape nonsense-mediated decay (NMD). PTVs in the NMD-escape region (PTVescs) can cause Mendelian disease but are difficult to interpret given their varying impact on protein function. Previously, PTVesc burden was assessed in an epilepsy cohort, but no large-scale analysis has systematically evaluated these variants in rare disease. We performed a retrospective analysis of 29,031 neurodevelopmental disorder (NDD) parent-offspring trios referred for clinical exome sequencing to identify PTVesc de novo mutations (DNMs). We identified 1,376 PTVesc DNMs and 133 genes that were significantly enriched (binomial p < 0.001). The PTVesc-enriched genes included those with PTVescs previously described to cause dominant Mendelian disease (e.g., SEMA6B , PPM1D , and DAGLA). We annotated ClinVar variants for PTVescs and identified 948 genes with at least one high-confidence pathogenic variant. Twenty-two known Mendelian PTVesc-enriched genes had no prior evidence of PTVesc-associated disease. We found 22 additional PTVesc-enriched genes that are not well established to be associated with Mendelian disease, several of which showed phenotypic similarity between individuals harboring PTVesc variants in the same gene. Four individuals with PTVesc mutations in RAB1A had similar phenotypes including NDD and spasticity. PTVesc mutations in IRF2BP1 were found in two individuals who each had severe immunodeficiency manifesting in NDD. Three individuals with PTVesc mutations in LDB1 all had NDD and multiple congenital anomalies. Using a large-scale, systematic analysis of DNMs, we extend the mutation spectrum for known Mendelian disease-associated genes and identify potentially novel disease-associated genes. [Display omitted] Protein-truncating variants escaping nonsense-mediated decay (PTVescs) are often overlooked in genetic disease. We examined individuals with neurodevelopmental disorders referred for clinical exome sequencing for gene-level enrichment of de novo PTVesc and phenotypic similarity analysis. This analysis identified PTVesc as a mutation spectrum in established and candidate Mendelian disease-gene associations. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
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