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8,956 result(s) for "Monroy, Jorge"
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The habitat of Coccidioides spp. and the role of animals as reservoirs and disseminators in nature
Background Coccidioidomycosis, a potentially fatal fungal infection, is considered an emergent mycotic disease because of the increased incidence of fungal infections registered over recent years. Infection occurs through the inhalation of arthroconidia from two main species of Coccidioides : Coccidioides immitis and C. posadasii , which are both endemic to arid and semi-arid regions of North America. Coccidioides species not only infect humans but can also infect other mammals (land, aquatic, wild or domestic), reptiles and birds. Objective To obtain information regarding the habitat of Coccidioides spp. and the animals infected by this fungus and to identify the role that infected animals play as reservoirs and disseminators of this fungus in nature. Materials A literature review was conducted to identify the habitat of Coccidioides spp. and the infected non-human animal species targeted by this fungus. Results and conclusions This review allows us to suggest that Coccidioides spp. may be classified as halotolerant organisms; nevertheless, to perpetuate their life cycle, these organisms depend on different animal species (reservoirs) that serve as a link with the environment, by acting as disseminators of the fungi in nature.
Assistance Burden Comparison Between Age-Related Macular Degeneration and Retinal Angiomatous Proliferation Over a Three-Year Follow-up
Background and Objective: We compared assistance burden between neovascular age-related macular degeneration (nAMD) and retinal angiomatous proliferation (RAP) under intravitreal anti-vascular endothelial growth factor (anti-VEGF) treatment on a treat-and-extend (T&E) regimen in a third-level hospital in a developed country. Patients and Methods: This retrospective study using data from the Fight Retinal Blindness! Registry included patients treated between January 2016 and December 2020. Final event was established as best corrected visual acuity (BCVA) lower than 20 Early Treatment Diabetic Retinopathy Study letters. According to choroidal neovascularization (CNV), three different study groups were established: type 1, 2, and 3. Results: A total of 285 eyes of 227 patients were included. Mean age was 80.1 ± 6.5, 79.1 ± 7.9, and 81.2 ± 7.2 years, for the three study groups, respectively. Mean injections were 16.0 ± 4.8, 16.5 ± 4.1, and 14.1 ± 5.7, respectively; and mean number of visits were 17.9 ± 4.3, 18.2 ± 3.1, and 16.8 ± 5.3, respectively. No differences were found (P > 0.05). Survival curves and log-rank analysis also showed no differences (P = 0.344). Cox proportional hazard models showed that a lower baseline BCVA, subfoveal geographic atrophy (GA), and subfoveal fibrosis (SF) were associated with a higher risk of reaching ≤ 20 letters. Conclusions: nAMD and RAP under a T&E regimen indicate a high assistance burden during the first three years. The presence of subfoveal GA or SF are associated with a BCVA lower than 20 letters. [Ophthalmic Surg Lasers Imaging Retina 2024;55:XX–XX.]
Affective Underpinnings of the Association Between Autonomy Support and Self-Regulated Learning
Despite ample research on the role of parental autonomy support in adolescents' adjustment, the affective processes underlying parental autonomy support remain relatively unclear. As an initial step to fill this gap, the current research examined whether the association between parental autonomy support and adolescents' school adjustment was in part channeled through their experience of positive emotions. American and Chinese adolescents (N = 562, mean age = 12.72 years) reported on their parents' use of autonomy-supportive practices, their own experiences of positive emotions, and self-regulated learning strategies, at three time points. American and Chinese adolescents who perceived their parents as autonomy-supportive were more likely to experience heightened positive emotions 6 months later. In turn, such positive emotional experiences were predictive of adolescents' subsequent use of self-regulation in their learning endeavors. There was also evidence that adolescents' experiences of positive emotions partially accounted for the associations between parental autonomy support and adolescents' self-regulated learning.
Ocular related emergencies in Spain during the COVID-19 pandemic, a multicenter study
Purpose To evaluate ophthalmological emergencies (OE) during the COVID-19 pandemic comparing them with the same period of the previous year. Methods Retrospective observational study of all OE visits in four tertiary hospitals in Spain comparing data from March 16th to April 30th, 2020 (COVID-19 period) and the same period of 2019 (pre-COVID-19 period). Severity of the conditions was assessed following Channa et al. publication. Data on demographics, diagnosis and treatments were collected from Electronic Medical Records. Results During lockdown, OE significantly declined by 75.18%, from 7,730 registered in the pre-COVID-19 period to 1,928 attended during the COVID-19 period ( p  < 0.001). In 2019, 23.86% of visits were classified as emergent, 59.50% as non-emergent, and 16.65% could not be determined. In 2020, the percentage of emergent visits increased up to 29.77%, non-emergent visits significantly decreased to 52.92% ( p  < 0.001), and 17.31% of the visits were classified as “could not determine”. During the pandemic, people aged between 45 and 65 years old represented the largest attending group (37.89%), compared to 2019, where patients over 65 years were the majority (39.80%). In 2019, most frequent diagnosis was unspecified acute conjunctivitis (11.59%), followed by vitreous degeneration (6.47%), and punctate keratitis (5.86%). During the COVID-19 period, vitreous degeneration was the first cause for consultation (9.28%), followed by unspecified acute conjunctivitis (5.63%) and punctate keratitis (5.85%). Conclusions OE visits dropped significantly during the pandemic in Spain (75.18%), although more than half were classified as non-urgent conditions, indicating a lack of understanding of the really emergent ocular pathologies among population.
Welfare Indicators in Tilapia: An Epidemiological Approach
Interest and concern about rearing methods and their impact on animal welfare have increased. Production evaluation is population-based, and animal welfare analysis should be similar. In fish, the most common welfare indicators are gill state, fin damage, and body condition. The objective of this study was to evaluate the feeding rate effect on the welfare indicators of Oreochromis niloticus using an epidemiological approach. Five growth stages (from 1.2 to 360 g) were studied using four feeding rates as treatments: underfeeding (80%), recommended feeding (100%), and two levels of overfeeding (120% and 140%). The evaluated welfare indicators include the presence of lesions in different body areas and fins, the decrease in body condition index, and their impact on biomass production. Incidence and relative risk were determined for each indicator. Statistically significant associations were found in the indicators of mortality, weight, body condition (K), and presence of evident damage in the caudal and anal fin in all stages. The results showed that the feed rate directly affects the welfare indicators and production. Mortality, weight reduction, K reduction, and caudal and anal fin damage incidence showed to be relevant indicators in all O. niloticus growing stages. As a result of this study, the epidemiological approach seems to be a valuable tool for production. A risk traffic light method is a proposal that could have great potential, with the suggested limits for WI's concerning the individuals present in the culture pond, allowing progressive evaluation and decision-making to correct risky situations.
Counter-propagating spontaneous four wave mixing: photon-pair factorability and ultra-narrowband single photons
We introduce a new kind of spontaneous four wave mixing process for the generation of photon pairs, in which the four waves involved counter-propagate in a guided-wave χ ( 3 ) medium; we refer to this process as counter-propagating spontaneous four wave mixing (CP-SFWM). We show that for the simplest CP-SFWM source, in which all waves propagate in the same polarization and transverse mode and in which self- and cross-phase modulation effects are negligible, phasematching is attained automatically regardless of dispersion in the fiber or waveguide. Furthermore, we show that in two distinct versions of this source (both pumps pulsed, or one pump pulsed and the remaining one monochromatic), the two-photon state is automatically factorable provided that the length of the nonlinear medium exceeds a certain threshold, easily achievable in practice since this threshold length tends to be in the range of mm to cm. We also show that if one of the pumps approaches the monochromatic limit, and for a sufficient nonlinear medium length, the bandwidth of one of the two photons in a given pair may be reduced to the level of MHz, compatible with electronic transitions for the implementation of atom-photon interfaces, without the use of optical cavities.
Experimental and computational evidence that Calpain-10 binds to the carboxy terminus of NaV1.2 and NaV1.6
Voltage-gated sodium channels (Na V ) are pivotal proteins responsible for initiating and transmitting action potentials. Emerging evidence suggests that proteolytic cleavage of sodium channels by calpains is pivotal in diverse physiological scenarios, including ischemia, brain injury, and neuropathic pain associated with diabetes. Despite this significance, the precise mechanism by which calpains recognize sodium channels, especially given the multiple calpain isoforms expressed in neurons, remains elusive. In this work, we show the interaction of Calpain-10 with Na V 's C-terminus through a yeast 2-hybrid assay screening of a mouse brain cDNA library and in vitro by GST-pulldown. Later, we also obtained a structural and dynamic hypothesis of this interaction by modeling, docking, and molecular dynamics simulation. These results indicate that Calpain-10 interacts differentially with the C-terminus of Na V 1.2 and Na V 1.6. Calpain-10 interacts with Na V 1.2 through domains III and T in a stable manner. In contrast, its interaction with Na V 1.6 involves domains II and III, which could promote proteolysis through the Cys-catalytic site and C2 motifs.
Efficacy and Safety of an mRNA-Based RSV PreF Vaccine in Older Adults
In a placebo-controlled, phase 2–3 trial, one dose of mRNA-1345 led to a lower incidence of RSV disease among adults 60 years of age or older. Solicited local and systemic adverse reactions occurred more often with the vaccine.
Genotyping, sequencing and analysis of 140,000 adults from Mexico City
The Mexico City Prospective Study is a prospective cohort of more than 150,000 adults recruited two decades ago from the urban districts of Coyoacán and Iztapalapa in Mexico City 1 . Here we generated genotype and exome-sequencing data for all individuals and whole-genome sequencing data for 9,950 selected individuals. We describe high levels of relatedness and substantial heterogeneity in ancestry composition across individuals. Most sequenced individuals had admixed Indigenous American, European and African ancestry, with extensive admixture from Indigenous populations in central, southern and southeastern Mexico. Indigenous Mexican segments of the genome had lower levels of coding variation but an excess of homozygous loss-of-function variants compared with segments of African and European origin. We estimated ancestry-specific allele frequencies at 142 million genomic variants, with an effective sample size of 91,856 for Indigenous Mexican ancestry at exome variants, all available through a public browser. Using whole-genome sequencing, we developed an imputation reference panel that outperforms existing panels at common variants in individuals with high proportions of central, southern and southeastern Indigenous Mexican ancestry. Our work illustrates the value of genetic studies in diverse populations and provides foundational imputation and allele frequency resources for future genetic studies in Mexico and in the United States, where the Hispanic/Latino population is predominantly of Mexican descent. Genotype and exome sequencing of 150,000 participants and whole-genome sequencing of 9,950 selected individuals recruited into the Mexico City Prospective Study constitute a valuable, publicly available resource of non-European sequencing data.
Longer treatment intervals are associated with reduced treatment persistence in neovascular age related macular degeneration
Aims To test the hypothesis that patients treated for neovascular age related macular degeneration (nAMD) with longer treatment intervals are more likely to persist with treatment. Methods Data were obtained from the prospectively-defined Fight Retinal Blindness! registry. Treatment interval at 2 years was stratified based on the mean treatment interval over the three visits prior to and including the 2-year visit. Rates of non-persistence to follow-up were assessed from 2 to 5 years. Results Data from 1538 eyes were included. The overall rate of non-persistence was 51% at 5 years. Patients on longer treatment intervals (12-weeks) at 2 years were found to be less persistent to long-term follow-up. These eyes were found to have fewer active disease visits in the first 2 years (40%) than eyes treated at 4-weekly intervals (66%, p  < 0.001). In the multivariable analysis, better vision at 2 years was associated with a lower risk of non-persistence (hazards ratio [HR] [95% CI]: 0.95 [0.93, 0.97], P < 0.001), while longer treatment intervals (HR [95% CI]: 1.31 [0.95, 1.8] and 1.54 [1.15, 2.06] for 12-week and > 12-week intervals vs. 4-week intervals, respectively, P  = 0.002) and older patients (HR [95% CI]: 1.03 [1.02, 1.04], p  < 0.001) were at higher risk of non-persistence. Conclusions We found that patients on longer treatment intervals at 2 years were more likely to be non-persistent with treatment in later years. Reinforcing the need for ongoing treatment is important for patients on longer intervals who may feel complacent or that treatment is no longer effective, particularly if newer, longer lasting agents become widely available.