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1.
Sex Transm Dis ; 50(10): 635-641, 2023 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-37255234

RESUMEN

BACKGROUND: Mycoplasma genitalium infection can adversely affect female reproductive health, but data are limited about prevalence and characteristics of the infection in female adolescents. We employed a sensitive assay to detect M. genitalium infection, and we describe its characteristics in a clinical sample of women younger than 21 years. METHODS: We recruited females aged 13 to 20 years in children's hospital clinics whose clinicians were testing for chlamydia/gonorrhea. Participants completed a questionnaire providing demographics, sexual history, and current symptoms. Urine/endocervical samples were tested for chlamydia/gonorrhea and partitioned for M. genitalium testing using Aptima M. genitalium assay. We reviewed records for the clinic visit to document examination, diagnosis, and results of sexually transmitted infection (STI) testing. We compared prevalence of M. genitalium infection by demographics, sexual history, symptoms, and signs. RESULTS: Of 153 participants mean age 18.07 ± 1.68 years, 58% self-identified as Hispanic, 27% Black, 64% straight/heterosexual, 27% bisexual, 1% gay/lesbian, 29% reported a prior STI diagnosis. Prevalence of M. genitalium was 11.1% (17/153), 13 of 17 were asymptomatic, 2 of 17 had pelvic inflammatory disease (PID), 3 of 17 coinfected with chlamydia or gonorrhea. Prevalence of chlamydia was 6.6% and of gonorrhea 2.6%. A logistic regression model indicated independent associations of bisexual orientation versus all other orientations (adjusted odds ratio [aOR], 4.80; 95% confidence interval [CI], 1.38-16.67), self-reported prior STI (aOR, 3.83; 95% CI, 1.10-13.37), and self-reported prior PID (aOR, 9.12; 95% CI, 1.02-81.72) with higher odds of M. genitalium infection. CONCLUSIONS: Findings suggest that in at-risk female populations younger than 21 years, M. genitalium is a prevalent STI and symptomatic adolescents may warrant testing and treatment. Further study of harms and benefits of testing asymptomatic bisexual female adolescents or those with prior STI/PID is needed.


Asunto(s)
Infecciones por Chlamydia , Gonorrea , Infecciones por Mycoplasma , Mycoplasma genitalium , Enfermedad Inflamatoria Pélvica , Enfermedades de Transmisión Sexual , Niño , Humanos , Femenino , Adolescente , Adulto Joven , Adulto , Gonorrea/diagnóstico , Gonorrea/epidemiología , Infecciones por Chlamydia/diagnóstico , Infecciones por Chlamydia/epidemiología , Infecciones por Mycoplasma/diagnóstico , Infecciones por Mycoplasma/epidemiología , Infecciones por Mycoplasma/tratamiento farmacológico , Prevalencia , New York/epidemiología , Enfermedades de Transmisión Sexual/diagnóstico , Enfermedades de Transmisión Sexual/epidemiología , Chlamydia trachomatis , Enfermedad Inflamatoria Pélvica/epidemiología
2.
Transpl Infect Dis ; 23(1): e13449, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-32810315

RESUMEN

INTRODUCTION: The advent of direct-acting antivirals (DAAs) has created an avenue for transplantation of hepatitis C virus (HCV)-infected donors into uninfected recipients (D+/R-). The donor transmission of HCV is then countered by DAA administration during the post-operative period. However, initiation of DAA treatment is ultimately dictated by insurance companies. METHODS: A retrospective chart review of 52 D+/R- kidney recipients who underwent DAA treatment post-transplant was performed. Patients were grouped according to their prescription coverage plans, managed by either commercial or government pharmacy benefit managers (PBMs). RESULTS: Thirty-nine patients had government PBMs and 13 had commercial PBMs. Demographics were similar between the two groups. All patients developed HCV viremia, but cleared the virus after treatment with DAA. Patients with government PBMs were treated earlier compared to those with commercial PBMs (11 days vs 26 days, P = .01). Longer time to DAA initiation resulted in higher peak viral loads (ß = 0.39, R2  = .15, P = .01) and longer time to HCV viral load clearance (ß = 0.41, R2  = .17, P = .01). CONCLUSIONS: D+/R- transplantation offers patients an alternative strategy to increase access. However, treatment can be profoundly delayed by a third-party payer authorization process that may be subjecting patients to unnecessary risks and worsened outcomes.


Asunto(s)
Hepatitis C Crónica , Trasplante de Riñón , Antivirales/uso terapéutico , Hepacivirus , Hepatitis C Crónica/tratamiento farmacológico , Humanos , Seguro de Salud , Estudios Retrospectivos
3.
J Clin Microbiol ; 58(9)2020 08 24.
Artículo en Inglés | MEDLINE | ID: mdl-32611796

RESUMEN

The ability to detect SARS-CoV-2 in the upper respiratory tract ceases after 2 to 3 weeks post-symptom-onset in most patients. In contrast, SARS-CoV-2 can be detected in the stool of some patients for greater than 4 weeks, suggesting that stool may hold utility as an additional source for diagnosis. We validated the Cepheid Xpert Xpress SARS-CoV-2 and Hologic Panther Fusion real-time RT-PCR assays for detection of viral RNA in stool specimens and compared performance. We utilized remnant stool specimens (n = 79) from 77 patients with gastrointestinal symptoms. Forty-eight patients had PCR-confirmed COVID-19, and 29 either were nasopharyngeal/oropharyngeal PCR negative or presented for reasons unrelated to COVID-19 and were not tested. Positive percent agreement between the Cepheid and Hologic assays was 93% (95% confidence interval [CI]: 81.1% to 98.2%), and negative percent agreement was 96% (95% CI: 89% to 0.99%). Four discrepant specimens (Cepheid positive only, n = 2; Hologic positive only, n = 2) exhibited average cycle threshold (CT ) values of >37 for the targets detected. Of the 48 patients with PCR-confirmed COVID-19, 23 were positive by both assays (47.9%). For the negative patient group, 2/29 were positive by both assays (6.9%). The two stool PCR-positive, nasopharyngeal/oropharyngeal PCR-negative patients were SARS-CoV-2 IgG positive. Our results demonstrate acceptable agreement between two commercially available molecular assays and support the use of stool PCR to confirm diagnosis when SARS-CoV-2 is undetectable in the upper respiratory tract.


Asunto(s)
Betacoronavirus/genética , Técnicas de Laboratorio Clínico , Infecciones por Coronavirus/diagnóstico , Heces/virología , Neumonía Viral/diagnóstico , Reacción en Cadena de la Polimerasa , COVID-19 , Prueba de COVID-19 , Vacunas contra la COVID-19 , Técnicas de Laboratorio Clínico/métodos , Técnicas de Laboratorio Clínico/normas , Técnicas de Laboratorio Clínico/estadística & datos numéricos , Humanos , Límite de Detección , Pandemias , Reacción en Cadena de la Polimerasa/métodos , Reacción en Cadena de la Polimerasa/normas , Reacción en Cadena de la Polimerasa/estadística & datos numéricos , ARN Viral/análisis , ARN Viral/genética , Reproducibilidad de los Resultados , SARS-CoV-2
4.
J Clin Microbiol ; 58(10)2020 09 22.
Artículo en Inglés | MEDLINE | ID: mdl-32727828

RESUMEN

The COVID-19 pandemic caused by the new SARS-CoV-2 coronavirus has imposed severe challenges on laboratories in their effort to achieve sufficient diagnostic testing capability for identifying infected individuals. In this study, we report the analytical and clinical performance characteristics of a new, high-throughput, fully automated nucleic acid amplification test system for the detection of SARS-CoV-2. The assay utilizes target capture, transcription-mediated amplification, and acridinium ester-labeled probe chemistry on the automated Panther system to directly amplify and detect two separate target sequences in the open reading frame 1ab (ORF1ab) region of the SARS-CoV-2 RNA genome. The probit 95% limit of detection of the assay was determined to be 0.004 50% tissue culture infective dose (TCID50)/ml using inactivated virus and 25 copies/ml (c/ml) using synthetic in vitro transcript RNA targets. Analytical sensitivity (100% detection) was confirmed to be 83 to 194 c/ml using three commercially available SARS-CoV-2 nucleic acid controls. No cross-reactivity or interference was observed with testing of six related human coronaviruses, as well as 24 other viral, fungal, and bacterial pathogens, at high titers. Clinical nasopharyngeal swab specimen testing (n = 140) showed 100%, 98.7%, and 99.3% positive, negative, and overall agreement, respectively, with a validated reverse transcription-PCR nucleic acid amplification test (NAAT) for SARS-CoV-2 RNA. These results provide validation evidence for a sensitive and specific method for pandemic-scale automated molecular diagnostic testing for SARS-CoV-2.


Asunto(s)
Betacoronavirus/aislamiento & purificación , Técnicas de Diagnóstico Molecular , Técnicas de Amplificación de Ácido Nucleico , Automatización de Laboratorios , Betacoronavirus/genética , Prueba de COVID-19 , Técnicas de Laboratorio Clínico , Infecciones por Coronavirus/diagnóstico , Humanos , Nasofaringe/virología , ARN Viral/genética , Reproducibilidad de los Resultados , SARS-CoV-2 , Sensibilidad y Especificidad , Proteínas Virales/genética
5.
Clin Transplant ; 34(4): e13833, 2020 04.
Artículo en Inglés | MEDLINE | ID: mdl-32072689

RESUMEN

The advent of direct-acting antivirals (DAAs) has provided the impetus to transplant kidneys from hepatitis C virus-positive donors into uninfected recipients (D+/R-). Thirty D+/R- patients received DAA treatment. Sustained virologic response (SVR12) was defined as an undetectable viral load in 12 weeks after treatment. An age-matched cohort of uninfected donor and recipient pairs (D-/R-) transplanted during same time period was used for comparison. The median day of viral detection was postoperative day (POD) 2. The detection of viremia in D+/R- patients was 100%. The initial median viral load was 531 copies/µL (range: 10-1 × 108 copies/µL) with a median peak viral load of 3.4 × 105 copies/µL (range: 804-1.0 × 108 copies/µL). DAAs were initiated on median POD 9 (range: 5-41 days). All 30 patients had confirmed SVR12. During a median follow-up of 10 months, patient and graft survival was 100%, and acute rejection was 6.6% with no major adverse events related to DAA treatment. Delayed graft function was significantly decreased in D+/R- patients as compared to the age-matched cohort (27% vs 60%; P = .01). D+/R- transplantation offers patients an alternative strategy to increase access.


Asunto(s)
Hepatitis C Crónica , Hepatitis C , Trasplante de Riñón , Antivirales/uso terapéutico , Hepacivirus , Hepatitis C/tratamiento farmacológico , Hepatitis C Crónica/tratamiento farmacológico , Humanos , Riñón
6.
Hum Mutat ; 38(1): 7-15, 2017 01.
Artículo en Inglés | MEDLINE | ID: mdl-27667302

RESUMEN

Werner syndrome (WS) is a rare autosomal recessive disorder characterized by a constellation of adult onset phenotypes consistent with an acceleration of intrinsic biological aging. It is caused by pathogenic variants in the WRN gene, which encodes a multifunctional nuclear protein with exonuclease and helicase activities. WRN protein is thought to be involved in optimization of various aspects of DNA metabolism, including DNA repair, recombination, replication, and transcription. In this update, we summarize a total of 83 different WRN mutations, including eight previously unpublished mutations identified by the International Registry of Werner Syndrome (Seattle, WA) and the Japanese Werner Consortium (Chiba, Japan), as well as 75 mutations already reported in the literature. The Seattle International Registry recruits patients from all over the world to investigate genetic causes of a wide variety of progeroid syndromes in order to contribute to the knowledge of basic mechanisms of human aging. Given the unusually high prevalence of WS patients and heterozygous carriers in Japan, the major goal of the Japanese Consortium is to develop effective therapies and to establish management guidelines for WS patients in Japan and elsewhere. This review will also discuss potential translational approaches to this disorder, including those currently under investigation.


Asunto(s)
Mutación , Helicasa del Síndrome de Werner/genética , Síndrome de Werner/genética , Factores de Edad , Animales , Bases de Datos Genéticas , Modelos Animales de Enfermedad , Exones , Frecuencia de los Genes , Estudios de Asociación Genética , Predisposición Genética a la Enfermedad , Geografía , Humanos , Japón , Ratones , Fenotipo , Polimorfismo Genético , Polimorfismo de Nucleótido Simple , Sistema de Registros , Investigación Biomédica Traslacional , Navegador Web , Síndrome de Werner/diagnóstico , Síndrome de Werner/epidemiología
8.
Br J Educ Psychol ; 94(1): 282-305, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37984992

RESUMEN

BACKGROUND: Despite evidence that synthetic phonics teaching has increased reading attainments, a sizable minority of children struggle to acquire phonics skills and teachers lack clear principles for deciding what types of additional support are most beneficial. Synthetic phonics teaches children to read using a decoding strategy to translate letters into sounds and blend them (e.g., c-a-t = "k - ae - t" = "cat"). To use a decoding strategy, children require letter-sound knowledge (LSK) and the ability to blend sound units (phonological awareness; PA). Training on PA has been shown to benefit struggling beginning readers. However, teachers in English primary schools do not routinely check PA. Instead, struggling beginner readers usually receive additional LSK support. AIMS: Until now, there has been no systematic comparison of the effectiveness of training on each component of the decoding process. Should additional support for struggling readers focus on improving PA, or on supplementary LSK and/or decoding instruction? We aim to increase understanding of the roles of LSK and PA in children's acquisition of phonics skills and uncover which types of additional training are most likely to be effective for struggling beginner readers. SAMPLE AND METHOD: We will compare training on each of these components, using a carefully controlled experimental design. We will identify reception-age children at risk of reading difficulties (target n = 225) and randomly allocate them to either PA, LSK or decoding (DEC) training. We will test whether training type influences post-test performance on word reading and whether any effects depend on participants' pre-test PA and/or LSK. RESULTS AND CONCLUSIONS: Two hundred and twenty-two participants completed the training. Planned analyses showed no effects of condition on word reading. However, exploratory analyses indicated that the advantage of trained over untrained words was significantly greater for the PA and DEC conditions. There was also a significantly greater improvement in PA for the DEC condition. Overall, our findings suggest a potential advantage of training that includes blending skills, particularly when decoding words that had been included in training. Future research is needed to develop a programme of training on blending skills combined with direct vocabulary instruction for struggling beginner readers.


Asunto(s)
Personal Docente , Fonética , Niño , Humanos , Cognición , Lectura , Vocabulario
9.
J Immunol ; 186(6): 3718-25, 2011 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-21296977

RESUMEN

Sepsis is primarily a disease of the aged, with increased incidence and mortality occurring in aged hosts. Heat shock protein (HSP) 70 plays an important role in both healthy aging and the stress response to injury. The purpose of this study was to determine the role of HSP70 in mediating mortality and the host inflammatory response in aged septic hosts. Sepsis was induced in both young (6- to 12-wk-old) and aged (16- to 17-mo-old) HSP70(-/-) and wild-type (WT) mice to determine whether HSP70 modulated outcome in an age-dependent fashion. Young HSP70(-/-) and WT mice subjected to cecal ligation and puncture, Pseudomonas aeruginosa pneumonia, or Streptococcus pneumoniae pneumonia had no differences in mortality, suggesting HSP70 does not mediate survival in young septic hosts. In contrast, mortality was higher in aged HSP70(-/-) mice than aged WT mice subjected to cecal ligation and puncture (p = 0.01), suggesting HSP70 mediates mortality in sepsis in an age-dependent fashion. Compared with WT mice, aged septic HSP70(-/-) mice had increased gut epithelial apoptosis and pulmonary inflammation. In addition, HSP70(-/-) mice had increased systemic levels of TNF-α, IL-6, IL-10, and IL-1ß compared with WT mice. These data demonstrate that HSP70 is a key determinant of mortality in aged, but not young hosts in sepsis. HSP70 may play a protective role in an age-dependent response to sepsis by preventing excessive gut apoptosis and both pulmonary and systemic inflammation.


Asunto(s)
Envejecimiento/inmunología , Modelos Animales de Enfermedad , Proteínas HSP70 de Choque Térmico/fisiología , Sepsis/inmunología , Sepsis/mortalidad , Envejecimiento/genética , Animales , Apoptosis/genética , Apoptosis/inmunología , Ciego , Femenino , Proteínas HSP70 de Choque Térmico/deficiencia , Mucosa Intestinal/citología , Mucosa Intestinal/inmunología , Mucosa Intestinal/metabolismo , Ligadura , Masculino , Ratones , Ratones de la Cepa 129 , Ratones Endogámicos C57BL , Ratones Noqueados , Neumonía Bacteriana/inmunología , Neumonía Bacteriana/mortalidad , Neumonía Bacteriana/patología , Infecciones por Pseudomonas/inmunología , Infecciones por Pseudomonas/mortalidad , Infecciones por Pseudomonas/patología , Punciones , Sepsis/patología , Infecciones Estreptocócicas/inmunología , Infecciones Estreptocócicas/mortalidad , Infecciones Estreptocócicas/patología
10.
J Immunol ; 187(4): 1950-6, 2011 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-21734077

RESUMEN

Lymphocyte apoptosis is thought to have a major role in the pathophysiology of sepsis. However, there is a disconnect between animal models of sepsis and patients with the disease, because the former use subjects that were healthy prior to the onset of infection while most patients have underlying comorbidities. The purpose of this study was to determine whether lymphocyte apoptosis prevention is effective in preventing mortality in septic mice with preexisting cancer. Mice with lymphocyte Bcl-2 overexpression (Bcl-2-Ig) and wild type (WT) mice were injected with a transplantable pancreatic adenocarcinoma cell line. Three weeks later, after development of palpable tumors, all animals received an intratracheal injection of Pseudomonas aeruginosa. Despite having decreased sepsis-induced T and B lymphocyte apoptosis, Bcl-2-Ig mice had markedly increased mortality compared with WT mice following P. aeruginosa pneumonia (85 versus 44% 7-d mortality; p = 0.004). The worsened survival in Bcl-2-Ig mice was associated with increases in Th1 cytokines TNF-α and IFN-γ in bronchoalveolar lavage fluid and decreased production of the Th2 cytokine IL-10 in stimulated splenocytes. There were no differences in tumor size or pulmonary pathology between Bcl-2-Ig and WT mice. To verify that the mortality difference was not specific to Bcl-2 overexpression, similar experiments were performed in Bim(-/-) mice. Septic Bim(-/-) mice with cancer also had increased mortality compared with septic WT mice with cancer. These data demonstrate that, despite overwhelming evidence that prevention of lymphocyte apoptosis is beneficial in septic hosts without comorbidities, the same strategy worsens survival in mice with cancer that are given pneumonia.


Asunto(s)
Adenocarcinoma/inmunología , Apoptosis/inmunología , Linfocitos/inmunología , Neoplasias Pancreáticas/inmunología , Proteínas Proto-Oncogénicas c-bcl-2/inmunología , Infecciones por Pseudomonas/inmunología , Pseudomonas aeruginosa/inmunología , Sepsis/inmunología , Adenocarcinoma/genética , Adenocarcinoma/microbiología , Animales , Apoptosis/genética , Citocinas/biosíntesis , Citocinas/inmunología , Humanos , Ratones , Ratones Noqueados , Trasplante de Neoplasias , Neoplasias Pancreáticas/genética , Neoplasias Pancreáticas/microbiología , Neumonía Bacteriana/inmunología , Neumonía Bacteriana/microbiología , Proteínas Proto-Oncogénicas c-bcl-2/genética , Infecciones por Pseudomonas/microbiología , Sepsis/genética , Sepsis/microbiología
11.
J Exp Child Psychol ; 114(2): 262-74, 2013 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23151397

RESUMEN

The ability to read opens up the possibility of learning about the world indirectly via print sources, providing a powerful new opportunity for children who have for years learned effectively from what people tell them. We compared children's trust in printed versus oral information. We also examined whether children who showed preferential trust in an informant with print assumed that the informant was still reliable about new information offered without print support. Children (N=89 aged 3-6 years) received conflicting suggestions from two dolls about which picture showed an unfamiliar target. Only one doll's suggestion referred to a printed label read aloud. Prereaders, despite their exposure to print and presumed experience of others treating print sources as authoritative, showed no clear evidence of preferential trust in the suggestions with print support. Early readers, in contrast, consistently preferred the suggestions with print support. Importantly, despite having treated the doll with print as having a history of accuracy, early readers no longer showed trust in that doll when it subsequently had no print support. Children at the very earliest stages of reading treated the doll with print appropriately as having gained only specific information from the print sources.


Asunto(s)
Comprensión , Lectura , Confianza , Factores de Edad , Niño , Preescolar , Conflicto Psicológico , Femenino , Humanos , Juicio , Masculino , Reconocimiento Visual de Modelos , Sugestión
12.
Arch Pathol Lab Med ; 147(10): 1109-1118, 2023 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-37338199

RESUMEN

CONTEXT.­: Disease courses in COVID-19 patients vary widely. Prediction of disease severity on initial diagnosis would aid appropriate therapy, but few studies include data from initial diagnosis. OBJECTIVE.­: To develop predictive models of COVID-19 severity based on demographic, clinical, and laboratory data collected at initial patient contact after diagnosis of COVID-19. DESIGN.­: We studied demographic data and clinical laboratory biomarkers at time of diagnosis, using backward logistic regression modeling to determine severe and mild outcomes. We used deidentified data from 14 147 patients who were diagnosed with COVID-19 by polymerase chain reaction SARS-CoV-2 testing at Montefiore Health System, from March 2020 to September 2021. We generated models predicting severe disease (death or more than 90 hospital days) versus mild disease (alive and fewer than 2 hospital days), starting with 58 variables, by backward stepwise logistic regression. RESULTS.­: Of the 14 147 patients, including Whites, Blacks, and Hispanics, 2546 (18%) patients had severe outcomes and 3395 (24%) had mild outcomes. The final number of patients per model varied from 445 to 755 because not all patients had all available variables. Four models (inclusive, receiver operating characteristic, specific, and sensitive) were identified as proficient in predicting patient outcomes. The parameters that remained in all models were age, albumin, diastolic blood pressure, ferritin, lactic dehydrogenase, socioeconomic status, procalcitonin, B-type natriuretic peptide, and platelet count. CONCLUSIONS.­: These findings suggest that the biomarkers found within the specific and sensitive models would be most useful to health care providers on their initial severity evaluation of COVID-19.


Asunto(s)
COVID-19 , Humanos , COVID-19/diagnóstico , SARS-CoV-2 , Prueba de COVID-19/métodos , Etnicidad , Biomarcadores
13.
Pediatrics ; 151(2)2023 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-36625072

RESUMEN

BACKGROUND AND OBJECTIVES: Methicillin-resistant Staphylococcus aureus (MRSA) is prevalent in most NICUs, with a high rate of skin colonization and subsequent invasive infections among hospitalized neonates. The effectiveness of interventions designed to reduce MRSA infection in the NICU during the coronavirus disease 2019 (COVID-19) pandemic has not been characterized. METHODS: Using the Institute for Healthcare Improvement's Model for Improvement, we implemented several process-based infection prevention strategies to reduce invasive MRSA infections at our level IV NICU over 24 months. The outcome measure of invasive MRSA infections was tracked monthly utilizing control charts. Process measures focused on environmental disinfection and hospital personnel hygiene were also tracked monthly. The COVID-19 pandemic was an unexpected variable during the implementation of our project. The pandemic led to restricted visitation and heightened staff awareness of the importance of hand hygiene and proper use of personal protective equipment, as well as supply chain shortages, which may have influenced our outcome measure. RESULTS: Invasive MRSA infections were reduced from 0.131 to 0 per 1000 patient days during the initiative. This positive shift was sustained for 30 months, along with a delayed decrease in MRSA colonization rates. Several policy and practice changes regarding personnel hygiene and environmental cleaning likely contributed to this reduction. CONCLUSIONS: Implementation of a multidisciplinary quality improvement initiative aimed at infection prevention strategies led to a significant decrease in invasive MRSA infections in the setting of the COVID-19 pandemic.


Asunto(s)
COVID-19 , Infección Hospitalaria , Staphylococcus aureus Resistente a Meticilina , Infecciones Estafilocócicas , Recién Nacido , Humanos , Infección Hospitalaria/prevención & control , Infección Hospitalaria/epidemiología , Unidades de Cuidado Intensivo Neonatal , Infecciones Estafilocócicas/epidemiología , Infecciones Estafilocócicas/prevención & control , Pandemias/prevención & control , Control de Infecciones , COVID-19/prevención & control
14.
FP Essent ; 517: 17-21, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35679468

RESUMEN

The goals of management in patients with nonscarring and scarring alopecias are stabilization of hair loss and improvement in hair density. Management often is a lengthy process that requires months to years. Patients may present with more than one cause of alopecia, so management may need to address more than one process. Goals for alopecia management are diagnosis-specific. Physicians should set patient expectations early about the potential for hair regrowth with treatment. Patients should be counseled about hair care practices, personal care products, vitamins, and use of hairstyling devices. Management options such as topical and oral drugs and intralesional injections should be considered based on the diagnosis and the level of evidence supporting their use. Hair transplantation may be an option for select patients. There are more evidence-based guidelines for initial management of nonscarring alopecias than for scarring alopecias. Because of the relative rarity of scarring alopecias, there is a lack of large data sets on which to base guidelines.


Asunto(s)
Alopecia , Cicatriz , Alopecia/diagnóstico , Alopecia/etiología , Alopecia/terapia , Cicatriz/etiología , Cicatriz/terapia , Cabello , Humanos
15.
Stud Health Technol Inform ; 290: 465-468, 2022 Jun 06.
Artículo en Inglés | MEDLINE | ID: mdl-35673058

RESUMEN

The aim of this study was to assess the patient experience with teledermatology among new versus existing clinic patients in the context of the rapid practice shift to teledermatology during the COVID-19 pandemic. We analyzed survey responses from 184 teledermatology patients seen during COVID-19 at a major Southeastern medical center from May 13th to June 5th 2020. Overall patient-reported satisfaction with teledermatology was high with the majority of respondents rating their overall satisfaction as excellent (68%) or very good (18%). As teledermatology experiences wider adoption with the COVID-19 pandemic, it is essential to examine patient experience and satisfaction with teledermatology.


Asunto(s)
COVID-19 , Dermatología , Enfermedades de la Piel , Telemedicina , Humanos , Pandemias , Satisfacción del Paciente , Enfermedades de la Piel/diagnóstico , Enfermedades de la Piel/terapia
16.
J Clin Pathol ; 75(1): 61-64, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-33144357

RESUMEN

With the global outbreak of COVID-19, the demand for testing rapidly increased and quickly exceeded the testing capacities of many laboratories. Clinical tests which receive CE (Conformité Européenne) and Food and Drug Administration (FDA) authorisations cannot always be tested thoroughly in a real-world environment. Here we demonstrate the long-term stability of nasopharyngeal swab specimens for SARS-CoV-2 molecular testing across three assays recently approved by the US FDA under Emergency Use Authorization. This study demonstrates that nasopharyngeal swab specimens can be stored under refrigeration or even ambient conditions for 21 days without clinically impacting the results of the real-time reverse transcriptase-PCR testing.


Asunto(s)
COVID-19/diagnóstico , SARS-CoV-2/aislamiento & purificación , Manejo de Especímenes/métodos , COVID-19/virología , Prueba de Ácido Nucleico para COVID-19 , Humanos , Laboratorios de Hospital , Nasofaringe/virología , Refrigeración , SARS-CoV-2/genética , Factores de Tiempo
17.
Cell Rep ; 41(11): 111783, 2022 12 13.
Artículo en Inglés | MEDLINE | ID: mdl-36516760

RESUMEN

Bacille Calmette-Guerin (BCG) is the only licensed vaccine against Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis (TB) disease. However, BCG has limited efficacy, necessitating the development of better vaccines. Non-tuberculous mycobacteria (NTMs) are opportunistic pathogens present ubiquitously in the environment. TB endemic countries experience higher exposure to NTMs, but previous studies have not elucidated the relationship between NTM exposure and BCG efficacy against TB. Therefore, we develop a mouse model (BCG + NTM) to simulate human BCG immunization regime and continuous NTM exposure. BCG + NTM mice exhibit superior and prolonged protection against pulmonary TB, with increased B cell influx and anti-Mtb antibodies in serum and airways, compared with BCG alone. Notably, spatial transcriptomics and immunohistochemistry reveal that BCG + NTM mice formed B cell aggregates with features of germinal center development, which correlate with reduced Mtb burden. Our studies suggest a direct relationship between NTM exposure and TB protection, with B cells playing a crucial role.


Asunto(s)
Mycobacterium tuberculosis , Tuberculosis Pulmonar , Tuberculosis , Ratones , Humanos , Animales , Vacuna BCG , Micobacterias no Tuberculosas , Inmunidad Celular
18.
medRxiv ; 2022 Mar 17.
Artículo en Inglés | MEDLINE | ID: mdl-33594384

RESUMEN

The Bronx was an early epicenter of the COVID-19 pandemic in the USA. We conducted temporal genomic surveillance of SARS-CoV-2 genomes across the Bronx from March-October 2020. Although the local structure of SARS-CoV-2 lineages mirrored those of New York City and New York State, temporal sampling revealed a dynamic and changing landscape of SARS-CoV-2 genomic diversity. Mapping the trajectories of variants, we found that while some became 'endemic' to the Bronx, other, novel variants rose in prevalence in the late summer/early fall. Geographically resolved genomes enabled us to distinguish between cases of reinfection and persistent infection in two pediatric patients. We propose that limited, targeted, temporal genomic surveillance has clinical and epidemiological utility in managing the ongoing COVID pandemic. One sentence summary: Temporally and geographically resolved sequencing of SARS-CoV-2 genotypes enabled surveillance of novel genotypes, identification of endemic viral variants, and clinical inferences, in the first wave of the COVID-19 pandemic in the Bronx.

19.
Artículo en Inglés | MEDLINE | ID: mdl-35831070

RESUMEN

The Bronx was an early epicenter of the COVID-19 pandemic in the USA. We conducted temporal genomic surveillance of 104 SARS-CoV-2 genomes across the Bronx from March October 2020. Although the local structure of SARS-CoV-2 lineages mirrored those of New York City and New York State, temporal sampling revealed a dynamic and changing landscape of SARS-CoV-2 genomic diversity. Mapping the trajectories of mutations, we found that while some became 'endemic' to the Bronx, other, novel mutations rose in prevalence in the late summer/early fall. Geographically resolved genomes enabled us to distinguish between cases of reinfection and persistent infection in two pediatric patients. We propose that limited, targeted, temporal genomic surveillance has clinical and epidemiological utility in managing the ongoing COVID pandemic.

20.
J Clin Virol ; 147: 105080, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-35086043

RESUMEN

BACKGROUND: Viral diversity presents an ongoing challenge for diagnostic tests, which need to accurately detect all circulating variants. The Abbott Global Surveillance program monitors severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) variants and their impact on diagnostic test performance. OBJECTIVES: To evaluate the capacity of Abbott molecular, antigen, and serologic assays to detect circulating SARS-CoV-2 variants, including all current variants of concern (VOC): B.1.1.7 (alpha), B.1.351 (beta), P.1 (gamma) and B.1.617.2 (delta). STUDY DESIGN: Dilutions of variant virus cultures (B.1.1.7, B.1.351, B.1.429, B.1.526.1, B.1.526.2, B.1.617.1, B.1.617.2, P.1, R.1 and control isolate WA1) and a panel of N = 248 clinical samples from patients with sequence confirmed variant infections (B.1.1.7, B.1.351, B.1.427, B.1.429, B.1.526, B.1.526.1, B.1.526.2, P.1, P.2, R.1) were evaluated on at least one assay: Abbott ID NOW COVID-19, m2000 RealTime SARS-CoV-2, Alinity m SARS-CoV-2, and Alinity m Resp-4-Plex molecular assays; the BinaxNOW COVID-19 Ag Card and Panbio COVID-19 Ag Rapid Test Device; and the ARCHITECT/Alinity i SARS-CoV-2 IgG and AdviseDx IgM assays, Panbio COVID-19 IgG assay, and ARCHITECT/Alinity i AdviseDx SARS-CoV-2 IgG II assay. RESULTS: Consistent with in silico predictions, each molecular and antigen assay detected VOC virus cultures with equivalent sensitivity to the WA1 control strain. Notably, 100% of all tested variant patient specimens were detected by molecular assays (N = 197 m2000, N = 88 Alinity m, N = 99 ID NOW), and lateral flow assays had a sensitivity of >94% for specimens with genome equivalents (GE) per device above 4 log (85/88, Panbio; 54/57 Binax). Furthermore, Abbott antibody assays detected IgG and IgM in 94-100% of sera from immune competent B.1.1.7 patients 15-26 days after symptom onset. CONCLUSIONS: These data confirm variant detection for 11 SARS-CoV-2 assays, which is consistent with each assay target region being highly conserved. Importantly, alpha, beta, gamma, and delta VOCs were detected by molecular and antigen assays, indicating that these tests may be suitable for widescale use where VOCs predominate.


Asunto(s)
COVID-19 , SARS-CoV-2 , Anticuerpos Antivirales , Humanos , Sensibilidad y Especificidad , Pruebas Serológicas
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