Regulation of biobanks in Mexico: Ethical and Legal issues

This thesis investigates the governance of biobanks in Mexico, exploring elements of legislative reform for the improvement of current legal and ethical guidance. It argues that the great benefits to be obtained from research using biobanks (e.g. personalised or stratified medicine) are at risk of being undermined by the absence of clear legal pathways. A number of legal and ethical issues have emerged from the different aspects of biobanks. Diverse theoretical approaches are reflected in academic literature and heterogeneous legislation of biobanks around the world. Specific binding rules have worked for some, whereas self-regulation has proven suitable for others. Social solidarity has played a key role in innovative biobanking law and decision making, in which traditional governance approaches have become more reflexive, involving not only law and policymakers, but also the public. A detailed legal analysis revealed significant gaps within the complex Mexican laws governing biobanks; this has caused confusion. Areas of concern were identified in relation to the ethical management of research samples and the protection of donors’ rights. This is concerning in Mexico where economic interests influence legal reform, giving way to opportunistic actions by the international pharmaceutical industry and leaving vulnerable populations unprotected. The greatest challenges for Mexican legislators are finding ways to respond to legal gaps with new laws and improving the effectiveness of existing rules. Due to the scarcity of literature on the topic, interviews were conducted with representative actors in strategic areas. Participation in the European Union research network BTCure enabled the inclusion of a study investigating how European experiences can be valuable examples for Mexico to follow. The results of this research indicate ways forward for Mexican governance, which are expected to influence further legislative reforms of biobanks

Sexualidad procreación cuidados: un estudio intergeneracional. 16H207

Se identificaron entre los modelos genéricos actuales, las rupturas y continuidades de los patrones tradicionales respecto de la sexualidad-procreación y cuidados en tres generaciones de varones y mujeres y también las resistencias y negociaciones que la generación más joven pone en juego a través de los significados y representaciones que tienen de dichos procesos. El lugar del estudio es el “Barrio Nuestra señora de Fátima”, un asentamiento en el municipio de Garupá, Misiones, conformado por familias relocalizadas afectadas por el embalse de la represa Yacyretá-EBY. Pusimos énfasis en las condiciones de precariedad y vulnerabilidad tanto materiales como simbólicas, a las que están sometidos los sujetos de la investigación. Se utilizó una perspectiva de análisis cualitativo, para lo que se seleccionaron tres grupos de edades: adolescentes en etapa de experimentación, otro grupo con experiencias reproductivas y el último con más de 45 años. Con el propósito de ejecutar un proyecto para promover prácticas de auto-cuidados y prevención orientadas a distintos grupos de usuarios jóvenes se articularon trabajos de diagnóstico y análisis entre la escuela CEP Nº 6, el Hospital del lugar y las secretarías de la juventud y de la salud de la municipalidad, transferencia que fue presentada a ambas Secretarías

Linfoma cutáneo de células B tipo centro folicular con infiltración a médula ósea reporte de un caso

Los linfomas cutáneos primarios de células B constituyen cerca del 20-25% de todos los linfomas. Ellinfoma cutáneo primario de células B tipo centro folicular es el subtipo más frecuente y se manifiesta principalmente en pacientes adultos con una edad media de 58 años (1), la diseminación extra-cutánea es muy rara y se presenta con nódulos, tumores o placas solitarios o en grupo usualmente localizados en cabeza o tronco. Presentamos el caso de una paciente con un linfoma primario cutáneo tipo centro folicular con infiltración a médula ósea

Desarrollo de la dimensión corporal a través de juegos pre -dancísticos en niños de 4 a 6 años en el Municipio de Cajicá

Partiendo de la situación de pandemia que padece la humanidad desde el 2020 y por la normatividad de aislamiento que se tuvo debido al Decreto 457 del 22 de marzo del mismo año, los niños dejaron de salir de sus casas a realizar acciones corporales básicas como correr, saltar, jugar, trepar, reptar, en diferentes espacios cotidianos como un parque, clases presenciales, además de perder contacto con sus pares, para quedarse en sus hogares, siendo este el único lugar de exploración en el cual deben desenvolverse. Esto impidió que tuvieran la oportunidad de desarrollar sus habilidades corporales correctamente especialmente las de motricidad gruesa, atendiendo esta necesidad la presente propuesta de investigación busca abarcar la expresión corporal por medio de los juegos pre -dancísticos, este proyecto se encargará de recopilar herramientas para desarrollar habilidades corporales, basadas en referentes teóricos e investigaciones actuales que permitan tener una mirada más amplia desde la expresión corporal, la danza y el juego. Entendiendo que los juegos pre dancísticos son espacios previos a danzar o crear una coreografía, en donde se debe presentar a los estudiantes personajes representativos de la misma o movimientos, integrando elementos importantes como son el juego, el canto, la pantomima, el recitado entre otros, estos elementos ayudan a fortalecer habilidades como su coordinación, equilibrio, atención, movimientos corporales intencionales, ubicación espacial, entre otras, aportando al desarrollo de otras dimensiones como por ejemplo la comunicativa, ya que implícitamente incluye el canto de la ronda o baile a utilizar.Based on the pandemic situation that humanity has suffered since 2020 and due to the isolation regulations that were in place due to Decree 457 of March 22 of the same year, children stopped leaving their homes to perform basic bodily actions such as running, jump, play, climb, crawl, in different everyday spaces such as a park, face-to-face classes, in addition to losing contact with their peers, to stay in their homes, this being the only place of exploration in which they must develop. This prevented them from having the opportunity to develop their body skills correctly, especially those of gross motor skills. In response to this need, this research proposal seeks to cover body language through pre-dance games. This project will be in charge of collecting tools to develop skills. body, based on theoretical references and current research that allow a broader view from body expression, dance and play. Understanding that pre-dance games are spaces prior to dancing or creating a choreography, where students should be presented with representative characters or movements, integrating important elements such as playing, singing, pantomime, reciting, among others. , these elements help to strengthen skills such as coordination, balance, attention, intentional body movements, spatial location, among others, contributing to the development of other dimensions such as communication, since it implicitly includes the singing of the round or dance to be used

Canagliflozin and renal outcomes in type 2 diabetes and nephropathy

BACKGROUND Type 2 diabetes mellitus is the leading cause of kidney failure worldwide, but few effective long-term treatments are available. In cardiovascular trials of inhibitors of sodium–glucose cotransporter 2 (SGLT2), exploratory results have suggested that such drugs may improve renal outcomes in patients with type 2 diabetes. METHODS In this double-blind, randomized trial, we assigned patients with type 2 diabetes and albuminuric chronic kidney disease to receive canagliflozin, an oral SGLT2 inhibitor, at a dose of 100 mg daily or placebo. All the patients had an estimated glomerular filtration rate (GFR) of 30 to <90 ml per minute per 1.73 m2 of body-surface area and albuminuria (ratio of albumin [mg] to creatinine [g], >300 to 5000) and were treated with renin–angiotensin system blockade. The primary outcome was a composite of end-stage kidney disease (dialysis, transplantation, or a sustained estimated GFR of <15 ml per minute per 1.73 m2), a doubling of the serum creatinine level, or death from renal or cardiovascular causes. Prespecified secondary outcomes were tested hierarchically. RESULTS The trial was stopped early after a planned interim analysis on the recommendation of the data and safety monitoring committee. At that time, 4401 patients had undergone randomization, with a median follow-up of 2.62 years. The relative risk of the primary outcome was 30% lower in the canagliflozin group than in the placebo group, with event rates of 43.2 and 61.2 per 1000 patient-years, respectively (hazard ratio, 0.70; 95% confidence interval [CI], 0.59 to 0.82; P=0.00001). The relative risk of the renal-specific composite of end-stage kidney disease, a doubling of the creatinine level, or death from renal causes was lower by 34% (hazard ratio, 0.66; 95% CI, 0.53 to 0.81; P<0.001), and the relative risk of end-stage kidney disease was lower by 32% (hazard ratio, 0.68; 95% CI, 0.54 to 0.86; P=0.002). The canagliflozin group also had a lower risk of cardiovascular death, myocardial infarction, or stroke (hazard ratio, 0.80; 95% CI, 0.67 to 0.95; P=0.01) and hospitalization for heart failure (hazard ratio, 0.61; 95% CI, 0.47 to 0.80; P<0.001). There were no significant differences in rates of amputation or fracture. CONCLUSIONS In patients with type 2 diabetes and kidney disease, the risk of kidney failure and cardiovascular events was lower in the canagliflozin group than in the placebo group at a median follow-up of 2.62 years

Height and body-mass index trajectories of school-aged children and adolescents from 1985 to 2019 in 200 countries and territories: a pooled analysis of 2181 population-based studies with 65 million participants

Summary Background Comparable global data on health and nutrition of school-aged children and adolescents are scarce. We aimed to estimate age trajectories and time trends in mean height and mean body-mass index (BMI), which measures weight gain beyond what is expected from height gain, for school-aged children and adolescents. Methods For this pooled analysis, we used a database of cardiometabolic risk factors collated by the Non-Communicable Disease Risk Factor Collaboration. We applied a Bayesian hierarchical model to estimate trends from 1985 to 2019 in mean height and mean BMI in 1-year age groups for ages 5–19 years. The model allowed for non-linear changes over time in mean height and mean BMI and for non-linear changes with age of children and adolescents, including periods of rapid growth during adolescence. Findings We pooled data from 2181 population-based studies, with measurements of height and weight in 65 million participants in 200 countries and territories. In 2019, we estimated a difference of 20 cm or higher in mean height of 19-year-old adolescents between countries with the tallest populations (the Netherlands, Montenegro, Estonia, and Bosnia and Herzegovina for boys; and the Netherlands, Montenegro, Denmark, and Iceland for girls) and those with the shortest populations (Timor-Leste, Laos, Solomon Islands, and Papua New Guinea for boys; and Guatemala, Bangladesh, Nepal, and Timor-Leste for girls). In the same year, the difference between the highest mean BMI (in Pacific island countries, Kuwait, Bahrain, The Bahamas, Chile, the USA, and New Zealand for both boys and girls and in South Africa for girls) and lowest mean BMI (in India, Bangladesh, Timor-Leste, Ethiopia, and Chad for boys and girls; and in Japan and Romania for girls) was approximately 9–10 kg/m2. In some countries, children aged 5 years started with healthier height or BMI than the global median and, in some cases, as healthy as the best performing countries, but they became progressively less healthy compared with their comparators as they grew older by not growing as tall (eg, boys in Austria and Barbados, and girls in Belgium and Puerto Rico) or gaining too much weight for their height (eg, girls and boys in Kuwait, Bahrain, Fiji, Jamaica, and Mexico; and girls in South Africa and New Zealand). In other countries, growing children overtook the height of their comparators (eg, Latvia, Czech Republic, Morocco, and Iran) or curbed their weight gain (eg, Italy, France, and Croatia) in late childhood and adolescence. When changes in both height and BMI were considered, girls in South Korea, Vietnam, Saudi Arabia, Turkey, and some central Asian countries (eg, Armenia and Azerbaijan), and boys in central and western Europe (eg, Portugal, Denmark, Poland, and Montenegro) had the healthiest changes in anthropometric status over the past 3·5 decades because, compared with children and adolescents in other countries, they had a much larger gain in height than they did in BMI. The unhealthiest changes—gaining too little height, too much weight for their height compared with children in other countries, or both—occurred in many countries in sub-Saharan Africa, New Zealand, and the USA for boys and girls; in Malaysia and some Pacific island nations for boys; and in Mexico for girls. Interpretation The height and BMI trajectories over age and time of school-aged children and adolescents are highly variable across countries, which indicates heterogeneous nutritional quality and lifelong health advantages and risks

Search for new particles in events with energetic jets and large missing transverse momentum in proton-proton collisions at root s=13 TeV

A search is presented for new particles produced at the LHC in proton-proton collisions at root s = 13 TeV, using events with energetic jets and large missing transverse momentum. The analysis is based on a data sample corresponding to an integrated luminosity of 101 fb(-1), collected in 2017-2018 with the CMS detector. Machine learning techniques are used to define separate categories for events with narrow jets from initial-state radiation and events with large-radius jets consistent with a hadronic decay of a W or Z boson. A statistical combination is made with an earlier search based on a data sample of 36 fb(-1), collected in 2016. No significant excess of events is observed with respect to the standard model background expectation determined from control samples in data. The results are interpreted in terms of limits on the branching fraction of an invisible decay of the Higgs boson, as well as constraints on simplified models of dark matter, on first-generation scalar leptoquarks decaying to quarks and neutrinos, and on models with large extra dimensions. Several of the new limits, specifically for spin-1 dark matter mediators, pseudoscalar mediators, colored mediators, and leptoquarks, are the most restrictive to date.Peer reviewe

Probing effective field theory operators in the associated production of top quarks with a Z boson in multilepton final states at root s=13 TeV

Peer reviewe

Worldwide trends in underweight and obesity from 1990 to 2022: a pooled analysis of 3663 population-representative studies with 222 million children, adolescents, and adults

Background Underweight and obesity are associated with adverse health outcomes throughout the life course. We estimated the individual and combined prevalence of underweight or thinness and obesity, and their changes, from 1990 to 2022 for adults and school-aged children and adolescents in 200 countries and territories. Methods We used data from 3663 population-based studies with 222 million participants that measured height and weight in representative samples of the general population. We used a Bayesian hierarchical model to estimate trends in the prevalence of different BMI categories, separately for adults (age ≥20 years) and school-aged children and adolescents (age 5–19 years), from 1990 to 2022 for 200 countries and territories. For adults, we report the individual and combined prevalence of underweight (BMI <18·5 kg/m2) and obesity (BMI ≥30 kg/m2). For schoolaged children and adolescents, we report thinness (BMI <2 SD below the median of the WHO growth reference) and obesity (BMI >2 SD above the median). Findings From 1990 to 2022, the combined prevalence of underweight and obesity in adults decreased in 11 countries (6%) for women and 17 (9%) for men with a posterior probability of at least 0·80 that the observed changes were true decreases. The combined prevalence increased in 162 countries (81%) for women and 140 countries (70%) for men with a posterior probability of at least 0·80. In 2022, the combined prevalence of underweight and obesity was highest in island nations in the Caribbean and Polynesia and Micronesia, and countries in the Middle East and north Africa. Obesity prevalence was higher than underweight with posterior probability of at least 0·80 in 177 countries (89%) for women and 145 (73%) for men in 2022, whereas the converse was true in 16 countries (8%) for women, and 39 (20%) for men. From 1990 to 2022, the combined prevalence of thinness and obesity decreased among girls in five countries (3%) and among boys in 15 countries (8%) with a posterior probability of at least 0·80, and increased among girls in 140 countries (70%) and boys in 137 countries (69%) with a posterior probability of at least 0·80. The countries with highest combined prevalence of thinness and obesity in school-aged children and adolescents in 2022 were in Polynesia and Micronesia and the Caribbean for both sexes, and Chile and Qatar for boys. Combined prevalence was also high in some countries in south Asia, such as India and Pakistan, where thinness remained prevalent despite having declined. In 2022, obesity in school-aged children and adolescents was more prevalent than thinness with a posterior probability of at least 0·80 among girls in 133 countries (67%) and boys in 125 countries (63%), whereas the converse was true in 35 countries (18%) and 42 countries (21%), respectively. In almost all countries for both adults and school-aged children and adolescents, the increases in double burden were driven by increases in obesity, and decreases in double burden by declining underweight or thinness. Interpretation The combined burden of underweight and obesity has increased in most countries, driven by an increase in obesity, while underweight and thinness remain prevalent in south Asia and parts of Africa. A healthy nutrition transition that enhances access to nutritious foods is needed to address the remaining burden of underweight while curbing and reversing the increase in obesit

Measurement of the Higgs boson production rate in association with top quarks in final states with electrons, muons, and hadronically decaying tau leptons at s√=13TeV

The rate for Higgs (H) bosons production in association with either one (tH) or two (tt¯H) top quarks is measured in final states containing multiple electrons, muons, or tau leptons decaying to hadrons and a neutrino, using proton–proton collisions recorded at a center-of-mass energy of 13TeV by the CMS experiment. The analyzed data correspond to an integrated luminosity of 137fb−1. The analysis is aimed at events that contain H→WW, H→ττ, or H→ZZ decays and each of the top quark(s) decays either to lepton+jets or all-jet channels. Sensitivity to signal is maximized by including ten signatures in the analysis, depending on the lepton multiplicity. The separation among tH, tt¯H, and the backgrounds is enhanced through machine-learning techniques and matrix-element methods. The measured production rates for the tt¯H and tH signals correspond to 0.92±0.19(stat)+0.17−0.13(syst) and 5.7±2.7(stat)±3.0(syst) of their respective standard model (SM) expectations. The corresponding observed (expected) significance amounts to 4.7 (5.2) standard deviations for tt¯H, and to 1.4 (0.3) for tH production. Assuming that the Higgs boson coupling to the tau lepton is equal in strength to its expectation in the SM, the coupling yt of the Higgs boson to the top quark divided by its SM expectation, κt=yt/ySMt, is constrained to be within −0.9<κt<−0.7 or 0.7<κt<1.1, at 95% confidence level. This result is the most sensitive measurement of the tt¯H production rate to date.SCOAP