Overcoming challenges to reduce time to antibiotic therapy in febrile neutropenic children: insights from a Mexican center.

Background: Providing quality supportive therapy for children with cancer is essential to reduce the high mortality rates in low- and middle-income countries. Febrile neutropenia is the most common life-threatening complication of cancer in children. The objective of this study was to evaluate the long-term effectiveness of the 'Golden Hour' intervention in reducing the time to administer antibiotics and its impact on clinical outcomes in a Mexican hospital.

Disseminated gonococcal disease in pediatrics: Case report and review of the literature.

Hematogenous spread of Neisseria gonorrhoeae, a sexually transmitted pathogen, results in disseminated gonococcal disease (DGD), also known as arthritis-dermatitis syndrome, due to the development of skin lesions, tenosynovitis, and arthritis. The most frequently affected population is young adults. We describe the case of an adolescent female who acutely developed skin lesions, arthritis, tenosynovitis, and constitutional symptoms.

A double-negative feedback loop between NtrBC and a small RNA rewires nitrogen metabolism in legume symbionts.

Root nodule endosymbioses between diazotrophic rhizobia and legumes provide the largest input of combined N to the biosphere, thus representing an alternative to harmful chemical fertilizers for sustainable crop production. Rhizobia have evolved intricate strategies to coordinate N assimilation for their own benefit with N fixation to sustain plant growth. The rhizobial N status is transduced by the NtrBC two-component system, the seemingly ubiquitous form of N signal transduction in Proteobacteria.

Outcomes of neonates born to women with Covid-19.

Not available.

Design of a Rheumatology Transition Clinic for a Resource-Constrained Setting.

Objectives: To describe the design process of a medical care program for adolescents with pediatric onset rheumatic diseases (PRD) during the transition from pediatric to adult care in a resource-constrained hospital.

Methods: The model of attention was developed in three steps: 1) the selection of a multidisciplinary team, 2) the evaluation of the state of readiness of patients and caregivers for the transition, and 3) the design of a strategy of attention according to local needs. The results of the first two steps were used in order to develop the strategy of attention.

Identification of Group II Intron RmInt1 Binding Sites in a Bacterial Genome.

RmInt1 is a group II intron encoding a reverse transcriptase protein (IEP) lacking the C-terminal endonuclease domain. RmInt1 is an efficient mobile retroelement that predominantly reverse splices into the transient single-stranded DNA at the template for lagging strand DNA synthesis during host replication, a process facilitated by the interaction of the RmInt1 IEP with DnaN at the replication fork. It has been suggested that group II intron ribonucleoprotein particles bind DNA nonspecifically, and then scan for their correct target site.

Outcomes of transitional care programs on adolescent chronic inflammatory systemic diseases: systematic review and meta-analyses.

Background: Patients with juvenile chronic inflammatory systemic diseases (jCID) are vulnerable to many circumstances when transitioning to adult-centered healthcare; this increases the burden of disease and worsen their quality of life.

Methods: MEDLINE, Embase, Web of Science and Scopus were searched from inception to March 16, 2021. We included observational, randomized controlled trials and quasi-experimental studies that evaluated a transitional care program for adolescents and young adults with jCIDs.

Economic impact of Juvenile Idiopathic Arthritis: a systematic review.

Background: Juvenile Idiopathic Arthritis (JIA) requires complex care that generate elevated costs, which results in a high economic impact for the family. The aim of this systematic review was to collect and cluster the information currently available on healthcare costs associated with JIA after the introduction of biological therapies.

Methods: We comprehensively searched in MEDLINE, EMBASE, Web of Science, Scopus, and Cochrane Databases for studies from January 2000 to March 2021.

Psychosocial and economic impact of rheumatic diseases on caregivers of Mexican children.

Background: Pediatric rheumatic disease (PRD) patients and their caregivers face a number of challenges, including the consequences of the PRD in patients and the impact on multiple dimensions of the caregivers' daily lives. The objective of this study is to measure the economic, psychological and social impact that PRD has on the caregivers of Mexican children.

Methods: This is a multicenter, cross-sectional study including primary caregivers of children and adolescents with PRD (JIA, JDM and JSLE) during April and November, 2019.

Synthetase of the methyl donor S-adenosylmethionine from nitrogen-fixing α-rhizobia can bind functionally diverse RNA species.

Function of bacterial small non-coding RNAs (sRNAs) and overall RNA metabolism is largely shaped by a vast diversity of RNA-protein interactions. However, in non-model bacteria with defined non-coding transcriptomes the sRNA interactome remains almost unexplored. We used affinity chromatography to capture proteins associated with MS2-tagged -sRNAs that regulate nutrient uptake (AbcR2 and NfeR1) and cell cycle (EcpR1) mRNAs by antisense-based translational inhibition in the nitrogen-fixing α-rhizobia .

Predicting the optimal depth of ultrasound-guided right internal jugular vein central venous catheters in neonates.

Background: Poor positioning of a central venous catheter (CVC) can cause severe complications. The objective is to create a formula that predicts the optimal insertion depth of a real time ultrasound-guided CVC in the right internal jugular vein (RIJV) in newborns.

Methods: Between 2015 and 2017, 91 newborns that required a CVC were included in a prospective observational study.

Differences in omentin-1 levels in term newborns according to birth weight.

Background: Adipokines are produced by adipose tissue and are involved in metabolic processes. Omentin-1 is an adipokine that has been shown in vitro to possibly be involved in insulin sensitivity modulation. The prenatal stage is a crucial period for development of metabolic diseases in the long term, therefore, small (SGA) and large (LGA) for gestational age newborns have an increased risk of type 2 diabetes and metabolic syndrome later in life.

A group II intron-encoded protein interacts with the cellular replicative machinery through the β-sliding clamp.

Group II introns are self-splicing mobile genetic retroelements. The spliced intron RNA and the intron-encoded protein (IEP) form ribonucleoprotein particles (RNPs) that recognize and invade specific DNA target sites. The IEP is a reverse transcriptase/maturase that may bear a C-terminal endonuclease domain enabling the RNP to cleave the target DNA strand to prime reverse transcription.

Contribution of Mobile Group II Introns to Genome Evolution.

Mobile group II introns are ribozymes and retroelements that probably originate from bacteria. , the nitrogen-fixing endosymbiont of legumes of genus , harbors a large number of these retroelements. One of these elements, RmInt1, has been particularly successful at colonizing this multipartite genome.

Functionality of Reconstituted Group II Intron RmInt1-Derived Ribonucleoprotein Particles.

The functional unit of mobile group II introns is a ribonucleoprotein particle (RNP) consisting of the intron-encoded protein (IEP) and the excised intron RNA. The IEP has reverse transcriptase activity but also promotes RNA splicing, and the RNA-protein complex triggers site-specific DNA insertion by reverse splicing, in a process called retrohoming. reconstituted ribonucleoprotein complexes from the group II intron Ll.

Bacterial Group II Introns: Identification and Mobility Assay.

Group II introns are large catalytic RNAs and mobile retroelements that encode a reverse transcriptase. Here, we provide methods for their identification in bacterial genomes and further analysis of their splicing and mobility capacities.

[Kawasaki disease at a pediatric hospital in Mexico].

Background: Kawasaki disease (KD) is one of the most common systemic vasculitis in children under 5 years of age. The epidemiology of the disease is not well established in Mexico. The objective of this study was to describe the epidemiology, clinical features and treatment of patients with KD at the Hospital Infantil de Mexico Federico Gomez (HIMFG).

Localization of a bacterial group II intron-encoded protein in human cells.

Group II introns are mobile retroelements that self-splice from precursor RNAs to form ribonucleoparticles (RNP), which can invade new specific genomic DNA sites. This specificity can be reprogrammed, for insertion into any desired DNA site, making these introns useful tools for bacterial genetic engineering. However, previous studies have suggested that these elements may function inefficiently in eukaryotes.

Insights into the strategies used by related group II introns to adapt successfully for the colonisation of a bacterial genome.

Group II introns are self-splicing RNAs and site-specific mobile retroelements found in bacterial and organellar genomes. The group II intron RmInt1 is present at high copy number in Sinorhizobium meliloti species, and has a multifunctional intron-encoded protein (IEP) with reverse transcriptase/maturase activities, but lacking the DNA-binding and endonuclease domains. We characterized two RmInt1-related group II introns RmInt2 from S.

Severe meningoencephalitis co-infection due to Cryptococcus neoformans and Mycobacterium tuberculosis in a child with systemic lupus erythematosus.

The incidences of infection with Mycobacterium tuberculosis and Cryptococcus neoformans in immunocompromised patients have increased, but there are few documented cases of their coexistence. We present the case of a 9-year-old female with systemic lupus erythematosus (SLE), treated with prednisone and cyclophosphamide, who was admitted to the emergency department with a 2-week history of fever, headache, malaise, fatigue, and diplopia 3 years after diagnosis. Physical examination showed limitation of abduction of the right eye, Kernig and Brudzinski signs, and hyporeflexia.

In vitro characterization of the splicing efficiency and fidelity of the RmInt1 group II intron as a means of controlling the dispersion of its host mobile element.

Group II introns are catalytic RNAs that are excised from their precursors in a protein-dependent manner in vivo. Certain group II introns can also react in a protein-independent manner under nonphysiological conditions in vitro. The efficiency and fidelity of the splicing reaction is crucial, to guarantee the correct formation and expression of the protein-coding mRNA.