Αρχειοθήκη ιστολογίου

Κυριακή 8 Μαΐου 2022

Hypokalaemia associated with hydrochlorothiazide used in the treatment of hypertension in NHANES 1999–2018

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Journal of Human Hypertension, Published online: 06 May 2022; doi:10.1038/s41371-022-00704-x

Hypokalaemia associated with hydrochlorothiazide used in the treatment of hypertension in NHANES 1999–2018
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Estimation of the COVID‐19 Mean Incubation Time: Systematic Review, Meta‐analysis, and Sensitivity Analysis

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Abstract

Objectives

Providing sensible estimates of the mean incubation time for COVID-19 is important yet complex. This study aims to provide sensible estimates of the mean incubation time of COVID-19 by capitalizing on available estimates reported in the literature and exploring different ways to accommodate heterogeneity involved in the reported studies.

Methods

Online databases between January 1 of 2020 and May 20 of 2021 are first searched to obtain estimates of the mean incubation time of COVID-19 from available studies, and meta-analyses are then conducted to generate synthetic estimates. Heterogeneity of the studies is examined via the use of Cochran's Q statistic and Higgin's & Thompson's I2 statistic, and subgroup analyses are conducted using mixed effects models. The publication bias issue is assessed using the funnel plot and Egger's test.

Results

Using all those reported mean incubation estimates for COVID-19, the mean incubation time is estimated to be 6.43 days with a 95% confidence interval (CI) (5.90, 6.96), and using all those reported mean incubation estimates together with those transformed median incubation estimates, the estimated mean incubation time is 6.07 days with a 95% CI (5.70,6.45).

Conclusions

The reported estimates of the mean incubation time of COVID-19 vary considerably due to multiple reasons, including heterogeneity and publication bias. To alleviate these issues, we take different angles to provide a sensible estimate of the mean incubation time of COVID-19. Our analyses show that the mean incubation time of COVID-19 between January 1 of 2020 and May 20 of 2021 ranges from 5.68 days to 8.30 days.

This article is protected by copyright. All rights reserved.

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Use of Saliva and RT‐PCR Screening for SARS‐CoV‐2 Variants of Concern: Surveillance and Monitoring

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ABSTRACT

Genomic surveillance has been applied since the beginning of the COVID-19 pandemic to track the spread of virus, leading to characterization of multiple SARS-CoV-2 variants, including Variants of Concern (VOC). Although sequencing is the standard method, rapid molecular test for screening and surveillance of VOC is considered for detection. Furthermore, using alternative saliva as specimen collection, facilitates the implementation of a less invasive, self-collected sample. In this study, we applied a combinatory strategy of saliva collection and RT-PCR for SARS-CoV-2 VOC detection. Saliva samples from patients attending at a tertiary hospital with suspected COVID-19 were collected and SARS-CoV-2 RNA was detected using SARS-CoV-2 RT-qPCR reagent kit (PerkinElmer). Positive saliva samples were screened for SARS-CoV-2 VOC with previously described RT-PCR for Alpha, Beta and Gamma variants. Saliva samples were positive in 171 (53%) of 324 tested. A total of 108 (74%) from positive samples were also positive for VOC by RT-PCR screening. Those samples were found between January and August 2021. This approach allowed us to successfully use an alternative and complementary tool to genomic surveillance to monitoring the circulation of SARS-CoV-2 VOC in the studied population.

This article is protected by copyright. All rights reserved.

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Glibenclamide promoted functional recovery following sciatic nerve injury

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Abstract

The impact of peripheral nerve damage on a patient's quality of life is severe. The most frequent peripheral nerve crush damage is a sciatic nerve injury. Previous research has shown that glibenclamide (GB) has neuroprotective properties in a variety of oxidative stress-related disorders, including Alzheimer and Parkinson. The goal of this study was to see how GB affected nerve regeneration and improved function of the sciatic nerve in a rat model following a crush injury. We evaluated motor function, sensory recovery, gene expression, and histomorphometry following damage at different time points. Additionally, we assessed atrophy in the gastrocnemius muscle using histology and mass ratio analyses. Our results suggest that 2-, 4-, 6-, and 8-weeks following glibenclamide therapy, promotes the recovery of motor and sensory function in the injured site. Following glibenclamid injection, the mRNA levels of neurotrophic factors (NGF and BDNF) are raised. According to histomorphometry assessment, glibenclamide injection also increased the number of myelinated fibers while decreasing their thickness. These results showed that glibenclamide therapy by decreasing the proinflammatory and oxidant factors may enhance the nerve regeneration. It is clear that more research is needed to confirm these findings.

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Loss of dimethylated H3K27 (H3K27me2) expression is not a specific marker of malignant peripheral nerve sheath tumor (MPNST): An immunohistochemical study of 137 cases, with emphasis on MPNST and melanocytic tumors

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Publication date: Available online 6 May 2022

Source: Annals of Diagnostic Pathology

Author(s): Judith Jebastin Thangaiah, Brooke E. Westling, Anja C. Roden, Caterina Giannini, Michael Tetzlaff, Woo Cheal Cho, Andrew L. Folpe

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The anti-tumor effect of proteasome inhibitor MG132 for human adenoid cystic carcinoma: correlate with the emerging role of Nrf2/Keap1 signaling pathway

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Adenoid cystic carcinoma (ACC) is one of the most common malignant salivary gland tumors. Moreover, the unique biological characteristics and complex structures of ACC contribute to its poor survival rates. Re...
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Loss of KDM4B impairs osteogenic differentiation of OMSCs and promotes oral bone aging

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International Journal of Oral Science, Published online: 07 May 2022; doi:10.1038/s41368-022-00175-3

Loss of KDM4B impairs osteogenic differentiation of OMSCs and promotes oral bone aging
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Application of piecewise VMAT technique to whole-brain radiotherapy with simultaneous integrated boost for multiple metastases

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This study implemented a piecewise volumetric modulated arc therapy (P-VMAT) for realizing whole-brain radiation therapy (WBRT) with simultaneous integrated boost (SIB) for multiple brain metastases (> 40 meta...
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Comparison of the effects of neostigmine and sugammadex on postoperative residual curarization and postoperative pulmonary complications by means of diaphragm and lung ultrasonography: a study protocol for prospective double-blind randomized controlled trial

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Postoperative residual curarization (PORC) may be a potential risk factor of postoperative pulmonary complications (PPCs), and both of them will lead to adverse consequences on surgical patient recovery. The t...
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The utility of PAX8 in comparison with PAX5 immunohistochemical staining in the diagnosis of Hodgkin lymphoma

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Publication date: Available online 7 May 2022

Source: Annals of Diagnostic Pathology

Author(s): Fereshteh Ameli, Zahra Zahavi, Farid Kosari, Vahid Soleimani

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Characteristics of Benign Paroxysmal Positional Vertigo in Young Children

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Objectives

This study aimed to determine the clinical characteristics of benign paroxysmal positional vertigo (BPPV) in young children.

Study Design

Retrospective case review.

Methods

All children <10 years old that have been diagnosed with BPPV at our pediatric vestibular program between December 2012–July 2021 were selected. Clinical features were identified by medical record review, including demographics, comorbidities, canal involvement, response to treatment, and incidence of recurrence.

Results

A total of 34 children were diagnosed with BPPV with a mean age of 7.9 years old (SD ± 1/7; range 5–9) at the time of diagnosis and a male:female ratio of 1:1. Involved semicircular canals included posterior in 82% (n = 28), horizontal in 41% (n = 14), and superior in 24% (n = 8) of patients, respectively. Comorbid diagnoses included migraine (n = 14), concussion (n = 10), acute vestibular syndrome (n = 4), and persistent postural perceptual dizziness (n = 6). Recurrence with initially confirmed resolution occurred in 10 patients (29%) with a mean of 2.5 recurrences per patient (SD: 2.2; range 1–8). A family history of vertigo or migraine was identified in 11 and 17 patients, respectively.

Conclusions

BPPV is a cause of vertigo in children that may be overlooked. A relatively high proportion of patients demonstrated horizontal or superior canal involvement, recurrence, and additional comorbid causes of dizziness. Thus, providers evaluating young children with dizziness should perform diagnostic maneuvers to evaluate BPPV of all semicircular canals and continue to monitor children after successful treatment for recurrence.

Level of Evidence

4, Case Series Laryngoscope, 2022

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A systematic review of the relationship between momentary emotional states and nonsuicidal self‐injurious thoughts and behaviours

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Abstract

Background

Nonsuicidal self-injury (NSSI) is associated with high levels of distress, co-morbid mental health issues, and elevated risk of suicide. Previous literature indicates that emotion regulation is the most endorsed function of NSSI. Experience Sampling Methodology (ESM) provides a powerful tool for investigating the moment-to-moment associations between emotional states and NSSI thoughts and behaviours. The aim of the current study was to systematically review and evaluate ESM research concerning the relationship between momentary emotional states and NSSI.

Methods

A systematic search of electronic databases from date of inception to 16th April 2021 was conducted. This was supplemented through backwards citation tracking. A risk of bias assessment was completed prior to data synthesis.

Results

Nineteen eligible studies were identified for inclusion in the review. Heightened negative affect was found to typically precede instances of NSSIT thoughts and behaviour. Results were less consistent for positive affect.

Limitations

Sample sizes across studies were often small, meaningful effect sizes were not always reported, and non-validated measures of NSSI thoughts and behaviour were used during ESM assessments.

Conclusions

The results support affect regulation models of NSSI, and demonstrate the value of ESM studies, specifically those sampling more than once per day, in plotting the temporal, "in-the-moment" characteristics of these processes.

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