Shifts in structure and dynamics of the soil microbiome in biofuel/fuel blend-affected areas triggered by different bioremediation treatments.

The use of biofuels has grown in the last decades as a consequence of the direct environmental impacts of fossil fuel use. Elucidating structure, diversity, species interactions, and assembly mechanisms of microbiomes is crucial for understanding the influence of environmental disturbances. However, little is known about how contamination with biofuel/petrofuel blends alters the soil microbiome. Here, we studied the dynamics in the soil microbiome structure and composition of four field areas under long-term contamination with biofuel/fossil fuel blends (ethanol 10% and gasoline 90%-E10; ethanol 25% and gasoline 75%-E25; soybean biodiesel 20% and diesel 80%-B20) submitted to different bioremediation treatments along a temporal gradient. Soil microbiomes from biodiesel-polluted areas exhibited higher richness and diversity index values and more complex microbial communities than ethanol-polluted areas. Additionally, monitored natural attenuation B20-polluted areas were less affected by perturbations caused by bioremediation treatments. As a consequence, once biostimulation was applied, the degradation was slower compared with areas previously actively treated. In soils with low diversity and richness, the impact of bioremediation treatments on the microbiomes was greater, and as a result, the hydrocarbon degradation extent was higher. The network analysis showed that all abundant keystone taxa corresponded to well-known degraders, suggesting that the abundant species are core targets for biostimulation in soil remediation processes. Altogether, these findings showed that the knowledge gained through the study of microbiomes in contaminated areas may help design and conduct optimized bioremediation approaches, paving the way for future rationalized and efficient pollutant mitigation strategies.

Conocimientos sobre el aborto inducido y opiniones sobre el uso del misoprostol en Aguascalientes / Knowledge about induced abortion and opinions about the use of misoprostol in Aguascalientes

Resumen Antecedentes: El misoprostol es un medicamento de fácil acceso con el que se puede tener un aborto seguro. Objetivo: Explorar los conocimientos sobre la situación legal del aborto en el Estado de Aguascalientes, en donde el aborto está penalizado, así como los conocimientos y opiniones sobre el misoprostol. Método: Se aplicó un cuestionario en línea a 208 adultos. Resultados: La mayoría de las participantes no conocía la situación legal del aborto ni del Estado de Aguascalientes ni del país. Cerca de la mitad conocía el misoprostol, y sus principales fuentes de información fueron Internet y redes sociales. Aproximadamente la mitad de estos participantes no supo qué complicaciones puede ocasionar que requieran atención médica. Conclusión: El conocimiento sobre la situación legal del aborto y sobre el uso del misoprostol como método abortivo es limitado. Existe consciencia de la importancia de la supervisión médica cuando se usa, aunque esta se dificulta debido a la ilegalidad del aborto en Aguascalientes.

Abstract Background: Misoprostol is an easily accessible medication with which to have a safe abortion. Objective: To explore knowledge about the legal situation of abortion in the state of Aguascalientes, where abortion is criminalized, as well as knowledge and opinions about misoprostol. Method: An online questionnaire was administered to 208 adults. Results: Most of the participants did not know the legal situation of abortion neither in the state of Aguascalientes nor in the country. Almost half of them knew about misoprostol, and their main sources of information were the Internet and social networks. About half of these participants did not know which are the complications that misoprostol may cause that require medical attention. Conclusion: Knowledge about the legal situation of abortion and about the use of misoprostol as an abortion method is limited. There is awareness of the importance of medical supervision when misoprostol is used, but obtaining this supervision is difficult due to the illegality of abortion in Aguascalientes.

Comparison of specific endophytic bacterial communities in different developmental stages of Passiflora incarnata using culture-dependent and culture-independent analysis.

Plants and endophytic microorganisms have coevolved unique relationships over many generations. Plants show a specific physiological status in each developmental stage, which may determine the occurrence and dominance of specific endophytic populations with a predetermined ecological role. This study aimed to compare and determine the structure and composition of cultivable and uncultivable bacterial endophytic communities in vegetative and reproductive stages (RS) of Passiflora incarnata. To that end, the endophytic communities were assessed by plating and Illumina-based 16S rRNA gene amplicon sequencing. Two hundred and four cultivable bacterial strains were successfully isolated. From the plant's RS, the isolated strains were identified mainly as belonging to the genera Sphingomonas, Curtobacterium, and Methylobacterium, whereas Bacillus was the dominant genus isolated from the vegetative stage (VS). From a total of 133,399 sequences obtained from Illumina-based sequencing, a subset of 25,092 was classified in operational taxonomy units (OTUs). Four hundred and sixteen OTUs were obtained from the VS and 66 from the RS. In the VS, the most abundant families were Pseudoalteromonadaceae and Alicyclobacillaceae, while in the RS, Enterobacteriaceae and Bacillaceae were the most abundant families. The exclusive abundance of specific bacterial populations for each developmental stage suggests that plants may modulate bacterial endophytic community structure in response to different physiological statuses occurring at the different plant developmental stages.

Diabetes distress, illness perceptions and glycaemic control in adults with type 2 diabetes.

The emotional distress associated with adjusting to and living with diabetes has been termed diabetes distress. Diabetes distress is associated with glycaemic control but interventions to reduce diabetes distress have failed to consistently improve diabetes control. Various illness perceptions have previously been linked with both diabetes distress and glycaemic control but interrelationships between these features have not been previously investigated. We hypothesised that illness perceptions mediate the relationship between diabetes distress and glycaemia. Participants with type 2 diabetes attending diabetes outpatient clinics (n = 84) provided demographic and clinical information and completed the Diabetes Distress Scale-17 and the Brief Illness Perceptions Questionnaire. Using regression analysis we demonstrated that the illness perceptions of personal control, regimen-related distress, socioeconomic status and insulin use were significant contributors in the final model predicting HbA1c. Higher levels of personal control were associated with better glycaemic control. Conversely, regimen-related distress was associated with hyperglycaemia. Mediation analyses showed that the relationship between regimen-related distress and HbA1c was mediated by personal control. Our work suggests that psychological interventions designed to reduce diabetes distress may be more efficacious in improving glycaemic control if they address an individual's perception of personal control.

Psychological factors associated with diabetes self-management among adolescents with Type 1 diabetes: A systematic review.

This review aims to synthesise the literature examining the psychosocial variables related to self-management (insulin adherence, non-adherence and administration, blood sugar monitoring, dietary behaviour, exercise behaviour) in adolescents with type 1 diabetes. A systematic search of three electronic databases was carried out and, after the application of eligibility criteria, 21 articles were assessed for quality prior to data extraction. Numerous psychological factors were found to be associated with self-management; however, correlations were typically small to moderate. The strongest associations were found between social anxiety and diet (among males); greater intrinsic motivation, conscientiousness and diet; and extraversion and exercise.

A high throughput method for genome-wide analysis of retroviral integration.

Retroviral and lentiviral vectors integrate their DNA into the host cell genome leading to stable transgene expression. Integration preferentially occurs in the proximity of active genes, and may in some case disturb their activity, with adverse toxic consequences. To efficiently analyze high numbers of lentiviral insertion sites in the DNA of transduced cells, we developed an improved high-throughput method called vector integration tag analysis (VITA). VITA is based on the identification of Genomic Tags associated to the insertion sites, which are used as signatures of the integration events. We use the capacity of MmeI to cleave DNA at a defined distance of its recognition site, in order to generate 21 bp long tags from libraries of junction fragments between vector and cellular DNA. The length of the tags is sufficient in most cases, to identify without ambiguity an unique position in the human genome. Concatenation, cloning and sequencing of the tags allow to obtain information about 20-25 insertion sites in a single sequencing reaction. As a validation of this method, we have characterized 1349 different lentiviral vector insertion sites in transduced HeLa cells, from only 487 sequencing reactions, with a background of <2% false positive tags.