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1.
Orthop Clin North Am ; 55(2): 273-283, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38403373

RESUMEN

Septic arthritis of the wrist can have severe deleterious effects on cartilage and bone if not promptly addressed. Expedient diagnosis and early medical intervention are important. The most effective strategy involves immediate arthrocentesis of the infected joint, enabling precise antibiotic selection based on joint fluid analysis. Diagnostic imaging is important in excluding fractures and identifying abscesses. This review explores the etiologic factors underlying septic wrist joint, identifying risk factors, and delineating optimal diagnosis and treatment approaches. The overarching goal is to impart valuable insights and guidance in the management of septic wrist joint, ensuring the highest quality patient care and optimal clinical outcomes.


Asunto(s)
Artritis Infecciosa , Muñeca , Humanos , Artritis Infecciosa/diagnóstico , Artritis Infecciosa/etiología , Artritis Infecciosa/terapia , Desbridamiento , Factores de Riesgo , Articulación de la Muñeca
2.
Orthop Clin North Am ; 55(2): 247-255, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38403370

RESUMEN

Septic arthritis of the elbow is a serious problem requiring prompt, accurate diagnosis and urgent surgical intervention. Achieving successful patient outcomes depends heavily on early diagnosis and efficient streamlined surgical treatment. Essential tactics for treating the septic elbow joint include immediate joint irrigation and debridement in addition to administration of appropriate antibiotics. This comprehensive review delves into the cause of the septic elbow joint, identifies associated risk factors, and provides a comprehensive approach encompassing the diagnosis and treatment of the septic elbow. The aim of this review is to optimize patient care and outcomes.


Asunto(s)
Artritis Infecciosa , Articulación del Codo , Humanos , Articulación del Codo/cirugía , Codo , Artroscopía/efectos adversos , Desbridamiento/efectos adversos , Artritis Infecciosa/diagnóstico , Artritis Infecciosa/terapia , Estudios Retrospectivos
3.
PLoS One ; 18(12): e0287078, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38134032

RESUMEN

Parkinson's Disease (PD) is the second most common neurodegenerative disease behind Alzheimer's Disease, currently affecting more than 10 million people worldwide and 1.5 times more males than females. The progression of PD results in the loss of function due to neurodegeneration and neuroinflammation. The etiology of PD is multifactorial, including both genetic and environmental origins. Here we explored changes in RNA editing, specifically editing through the actions of the Adenosine Deaminases Acting on RNA (ADARs), in the progression of PD. Analysis of ADAR editing of skeletal muscle transcriptomes from PD patients and controls, including those that engaged in a rehabilitative exercise training program revealed significant differences in ADAR editing patterns based on age, disease status, and following rehabilitative exercise. Further, deleterious editing events in protein coding regions were identified in multiple genes with known associations to PD pathogenesis. Our findings of differential ADAR editing complement findings of changes in transcriptional networks identified by a recent study and offer insights into dynamic ADAR editing changes associated with PD pathogenesis.


Asunto(s)
Enfermedades Neurodegenerativas , Enfermedad de Parkinson , Masculino , Femenino , Humanos , Enfermedad de Parkinson/genética , Enfermedad de Parkinson/metabolismo , Edición de ARN , Enfermedades Neurodegenerativas/metabolismo , Adenosina Desaminasa/genética , Adenosina Desaminasa/metabolismo , Ejercicio Físico , Músculo Esquelético/metabolismo
4.
BMC Genomics ; 24(1): 685, 2023 Nov 15.
Artículo en Inglés | MEDLINE | ID: mdl-37968596

RESUMEN

BACKGROUND: RNA editing is a process that increases transcriptome diversity, often through Adenosine Deaminases Acting on RNA (ADARs) that catalyze the deamination of adenosine to inosine. ADAR editing plays an important role in regulating brain function and immune activation, and is dynamically regulated during brain development. Additionally, the ADAR1 p150 isoform is induced by interferons in viral infection and plays a role in antiviral immune response. However, the question of how virus-induced ADAR expression affects host transcriptome editing remains largely unanswered. This question is particularly relevant in the context of congenital infections, given the dynamic regulation of ADAR editing during brain development, the importance of this editing for brain function, and subsequent neurological symptoms of such infections, including microcephaly, sensory issues, and other neurodevelopmental abnormalities. Here, we begin to address this question, examining ADAR expression in publicly available datasets of congenital infections of human cytomegalovirus (HCMV) microarray expression data, as well as mouse cytomegalovirus (MCMV) and mouse/ human induced pluripotent neuroprogenitor stem cell (hiNPC) Zika virus (ZIKV) RNA-seq data. RESULTS: We found that in all three datasets, ADAR1 was overexpressed in infected samples compared to uninfected samples. In the RNA-seq datasets, editing rates were also analyzed. In all mouse infections cases, the number of editing sites was significantly increased in infected samples, albeit this was not the case for hiNPC ZIKV samples. Mouse ZIKV samples showed altered editing of well-established protein-recoding sites such as Gria3, Grik5, and Nova1, as well as editing sites that may impact miRNA binding. CONCLUSIONS: Our findings provide evidence for changes in ADAR expression and subsequent dysregulation of ADAR editing of host transcriptomes in congenital infections. These changes in editing patterns of key neural genes have potential significance in the development of neurological symptoms, thus contributing to neurodevelopmental abnormalities. Further experiments should be performed to explore the full range of editing changes that occur in different congenital infections, and to confirm the specific functional consequences of these editing changes.


Asunto(s)
Infecciones por Citomegalovirus , Infección por el Virus Zika , Virus Zika , Animales , Humanos , Ratones , Edición de ARN , Adenosina Desaminasa/genética , Adenosina Desaminasa/metabolismo , Adenosina/metabolismo , Inosina/genética , Inosina/metabolismo
5.
PLoS Pathog ; 17(10): e1009970, 2021 10.
Artículo en Inglés | MEDLINE | ID: mdl-34597344

RESUMEN

Toxoplasma gondii is an orally acquired pathogen that induces strong IFN-γ based immunity conferring protection but that can also be the cause of immunopathology. The response in mice is driven in part by well-characterized MyD88-dependent signaling pathways. Here we focus on induction of less well understood immune responses that do not involve this Toll-like receptor (TLR)/IL-1 family receptor adaptor molecule, in particular as they occur in the intestinal mucosa. Using eYFP-IL-12p40 reporter mice on an MyD88-/- background, we identified dendritic cells, macrophages, and neutrophils as cellular sources of MyD88-independent IL-12 after peroral T. gondii infection. Infection-induced IL-12 was lower in the absence of MyD88, but was still clearly above noninfected levels. Overall, this carried through to the IFN-γ response, which while generally decreased was still remarkably robust in the absence of MyD88. In the latter mice, IL-12 was strictly required to induce type I immunity. Type 1 and type 3 innate lymphoid cells (ILC), CD4+ T cells, and CD8+ T cells each contributed to the IFN-γ pool. We report that ILC3 were expanded in infected MyD88-/- mice relative to their MyD88+/+ counterparts, suggesting a compensatory response triggered by loss of MyD88. Furthermore, bacterial flagellin and Toxoplasma specific CD4+ T cell populations in the lamina propria expanded in response to infection in both WT and KO mice. Finally, we show that My88-independent IL-12 and T cell mediated IFN-γ production require the presence of the intestinal microbiota. Our results identify MyD88-independent intestinal immune pathways induced by T. gondii including myeloid cell derived IL-12 production, downstream type I immunity and IFN-γ production by ILC1, ILC3, and T lymphocytes. Collectively, our data reveal an underlying network of immune responses that do not involve signaling through MyD88.


Asunto(s)
Linfocitos T CD4-Positivos/inmunología , Microbioma Gastrointestinal/inmunología , Inmunidad Mucosa/inmunología , Subunidad p40 de la Interleucina-12/inmunología , Toxoplasmosis Animal/inmunología , Animales , Mucosa Intestinal/inmunología , Ratones , Ratones Noqueados , Factor 88 de Diferenciación Mieloide/deficiencia , Factor 88 de Diferenciación Mieloide/inmunología , Transducción de Señal/inmunología , Receptores Toll-Like/deficiencia , Receptores Toll-Like/inmunología , Toxoplasma/inmunología
6.
BMC Bioinformatics ; 21(Suppl 18): 578, 2020 Dec 30.
Artículo en Inglés | MEDLINE | ID: mdl-33375933

RESUMEN

BACKGROUND: As the number of RNA-seq datasets that become available to explore transcriptome diversity increases, so does the need for easy-to-use comprehensive computational workflows. Many available tools facilitate analyses of one of the two major mechanisms of transcriptome diversity, namely, differential expression of isoforms due to alternative splicing, while the second major mechanism-RNA editing due to post-transcriptional changes of individual nucleotides-remains under-appreciated. Both these mechanisms play an essential role in physiological and diseases processes, including cancer and neurological disorders. However, elucidation of RNA editing events at transcriptome-wide level requires increasingly complex computational tools, in turn resulting in a steep entrance barrier for labs who are interested in high-throughput variant calling applications on a large scale but lack the manpower and/or computational expertise. RESULTS: Here we present an easy-to-use, fully automated, computational pipeline (Automated Isoform Diversity Detector, AIDD) that contains open source tools for various tasks needed to map transcriptome diversity, including RNA editing events. To facilitate reproducibility and avoid system dependencies, the pipeline is contained within a pre-configured VirtualBox environment. The analytical tasks and format conversions are accomplished via a set of automated scripts that enable the user to go from a set of raw data, such as fastq files, to publication-ready results and figures in one step. A publicly available dataset of Zika virus-infected neural progenitor cells is used to illustrate AIDD's capabilities. CONCLUSIONS: AIDD pipeline offers a user-friendly interface for comprehensive and reproducible RNA-seq analyses. Among unique features of AIDD are its ability to infer RNA editing patterns, including ADAR editing, and inclusion of Guttman scale patterns for time series analysis of such editing landscapes. AIDD-based results show importance of diversity of ADAR isoforms, key RNA editing enzymes linked with the innate immune system and viral infections. These findings offer insights into the potential role of ADAR editing dysregulation in the disease mechanisms, including those of congenital Zika syndrome. Because of its automated all-inclusive features, AIDD pipeline enables even a novice user to easily explore common mechanisms of transcriptome diversity, including RNA editing landscapes.


Asunto(s)
Programas Informáticos , Transcriptoma , Adenosina Desaminasa/genética , Adenosina Desaminasa/metabolismo , Expresión Génica , Ontología de Genes , Humanos , Análisis de Componente Principal , Isoformas de Proteínas/genética , Isoformas de Proteínas/metabolismo , Edición de ARN , RNA-Seq , Células Madre/citología , Células Madre/metabolismo , Células Madre/virología , Virus Zika/fisiología
7.
Diabetes Res Clin Pract ; 168: 108376, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-32853688

RESUMEN

Diabetes is a leading cause of morbidity and mortality in the US. Current USPSTF guidelines recommend screening asymptomatic, overweight patients greater than 40 years. Our study showed that » of patients with type 2 diabetes were diagnosed prior to 40 years. Therefore, we recommend lowering the screening age for diabetes.


Asunto(s)
Diabetes Mellitus Tipo 2/diagnóstico , Tamizaje Masivo/métodos , Adolescente , Adulto , Anciano , Estudios Transversales , Análisis de Datos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Medición de Riesgo , Estados Unidos , Adulto Joven
8.
PLoS Pathog ; 16(5): e1008572, 2020 05.
Artículo en Inglés | MEDLINE | ID: mdl-32413093

RESUMEN

The apicomplexan Toxoplasma gondii induces strong protective immunity dependent upon recognition by Toll-like receptors (TLR)11 and 12 operating in conjunction with MyD88 in the murine host. However, TLR11 and 12 proteins are not present in humans, inspiring us to investigate MyD88-independent pathways of resistance. Using bicistronic IL-12-YFP reporter mice on MyD88+/+ and MyD88-/- genetic backgrounds, we show that CD11c+MHCII+F4/80- dendritic cells, F4/80+ macrophages, and Ly6G+ neutrophils were the dominant cellular sources of IL-12 in both wild type and MyD88 deficient mice after parasite challenge. Parasite dense granule protein GRA24 induces p38 MAPK activation and subsequent IL-12 production in host macrophages. We show that Toxoplasma triggers an early and late p38 MAPK phosphorylation response in MyD88+/+ and MyD88-/- bone marrow-derived macrophages. Using the uracil auxotrophic Type I T. gondii strain cps1-1, we demonstrate that the late response does not require active parasite proliferation, but strictly depends upon GRA24. By i. p. inoculation with cps1-1 and cps1-1:Δgra24, we identified unique subsets of chemokines and cytokines that were up and downregulated by GRA24. Finally, we demonstrate that cps1-1 triggers a strong host-protective GRA24-dependent Th1 response in the absence of MyD88. Our data identify GRA24 as a major mediator of p38 MAPK activation, IL-12 induction and protective immunity that operates independently of the TLR/MyD88 cascade.


Asunto(s)
Interleucina-12/inmunología , Sistema de Señalización de MAP Quinasas/inmunología , Macrófagos/inmunología , Factor 88 de Diferenciación Mieloide/inmunología , Proteínas Protozoarias/inmunología , Toxoplasma/inmunología , Toxoplasmosis/inmunología , Proteínas Quinasas p38 Activadas por Mitógenos/inmunología , Animales , Activación Enzimática/genética , Activación Enzimática/inmunología , Interleucina-12/genética , Sistema de Señalización de MAP Quinasas/genética , Macrófagos/parasitología , Macrófagos/patología , Ratones , Ratones Noqueados , Factor 88 de Diferenciación Mieloide/genética , Proteínas Protozoarias/genética , Toxoplasma/genética , Toxoplasmosis/genética , Toxoplasmosis/patología , Proteínas Quinasas p38 Activadas por Mitógenos/genética
9.
Mitochondrial DNA B Resour ; 3(2): 972-973, 2018 Oct 30.
Artículo en Inglés | MEDLINE | ID: mdl-33474384

RESUMEN

The complete mitochondrial genome of a freshwater planorbid snail, Planorbella duryi (Mollusca, Gastropoda) was recovered from de novo assembly of genomic sequences generated with the Illumina NextSeq500 platform. The P. duryi mitogenome (14,217 base pairs) is AT rich (72.69%) and comprises 13 protein-coding genes, two ribosomal subunit genes, and 22 transfer RNAs. The gene order is identical to that of Biomphalaria glabrata and other snail species in the family Planorbidae. This is the first full characterization of a mitochondrial genome of the genus Planorbella.

10.
Int J Palliat Nurs ; 1(3): 172-173, 1995 Jul 02.
Artículo en Inglés | MEDLINE | ID: mdl-29323593

RESUMEN

American Oncology Nursing Society congress The third international conference on children and death Annual scientific meeting of the European Association of Cancer Education Launch of nurse-led initiatives in lung cancer care.

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