Mismeasurement of a dichotomous outcome yields an unbiased risk ratio estimate when there are no false positive cases (perfect specificity) and when sensitivity is non-differential with respect to exposure status. In studies where these conditions are expected, quantitative bias analysis may be considered unnecessary. We conducted a simulation study to explore the robustness of this special case to small departures from perfect specificity and stochastic departures from non-differential sensitivity.
View Article and Find Full Text PDFBackground: The Mediterranean diet (MD) is recommended for all patients with inflammatory bowel disease (IBD) unless there is a specific contraindication. Culinary medicine has emerged as a method for improving dietary education. Patients and caregivers are often invested in making dietary changes to improve disease control.
View Article and Find Full Text PDFAs an efficient and cost-effective adsorbent, biochar has been widely used in the adsorption and removal of dyes. In this study, a simple NaOH-modified biochar with the pyrolysis temperature of 300 °C (NaCBC) was synthesized, characterized, and investigated for the adsorption performances and mechanisms of methylene blue (MB). NaCBC exhibited excellent MB adsorption performance with maximum removal efficiency and adsorption capacity of 99.
View Article and Find Full Text PDFBackground: Recurrent spontaneous abortion (RSA) is characterized by the occurrence of two or more consecutive spontaneous abortions, with a rising prevalence among pregnant women and significant implications for their physical and mental well-being. The multifaceted etiology of RSA has posed challenges in unraveling the molecular mechanisms underlying that underlie its pathogenesis. Oxidative stress and immune response have been identified as pivotal factors in the development of its condition.
View Article and Find Full Text PDFThe PANK2 gene, which encodes mitochondrial pantothenate kinase 2 protein, is the disease-causing gene for pantothenate kinase-associated neurodegeneration (PKAN). We report a case of atypical PKAN with autism-like symptoms presenting with speech difficulties, psychiatric symptoms, and mild developmental retardation. Magnetic resonance imaging (MRI) of the brain showed the typical "eye-of-the-tiger" sign.
View Article and Find Full Text PDFThe ability to determine asphyxia as a cause of death is important in forensic practice and helps us to judge whether a case is criminal. However, in some cases where the deceased has underlying heart disease, death by asphyxia cannot be determined by traditional autopsy and morphological observation under a microscope because there are no specific morphological features for either asphyxia or sudden cardiac death (SCD). Here, Fourier transform infrared (FTIR) spectroscopy was employed to distinguish asphyxia from SCD.
View Article and Find Full Text PDFObjective: To better understand the wetland restoration, the physicochemical property and microbial community in rhizosphere and bulk soil of the living and death Tamarix chinensis covered soil zones were studied.
Results: There were differences between growth conditions in the levels of soil pH, salinity, SOM, and nutrient. The living status of T.
Explored the expression of miR-29a in puerpera with RSA and its influencing mechanism. 52 patients with RSA group were divided into 30 cases representing ≤3 abortions and 22 cases with ≥4 abortions,thirty healthy women who had induced abortion during the same period as the control group. The differences in the expression levels of miR-29a, FKBP52 mRNA, VEGF, MVD, and HIF-lα were compared between the groups by conducting a correlation analysis.
View Article and Find Full Text PDFIn this paper, we focus on the application of mechanical properties in a soil-rock mixture modified by microbial mineralization under the influence of different factors, including pH value, cementing solution concentration, and cementing time. Cementing fluids and samples with different pH values, calcium ion concentrations, and mineralization cementation were prepared. The process of urea hydrolysis MICP under different factors was studied.
View Article and Find Full Text PDFObjective: This study investigated the correlation between sperm DNA integrity and routine semen evaluation parameters in male infertile patients, the influencing factors, and the impact of the DNA fragmentation index (DFI) on embryo quality and clinical outcomes in in vitro fertilization and embryo transfer (IVF-ET).
Methods: Sperm DFI and semen routine parameters of 6160 infertile men admitted between June 2017 and June 2018 were analyzed. Patients were divided into three groups according to their DFI: low-DFI (DFI<15%), medium-DFI (15%
Long non-coding RNA (LncRNA) emerges as a regulator in various diseases, including endometriosis (EM). This study aims to uncover the role of ()-mediated competing endogenous RNA mechanism in endometrial stromal cell (ESC) proliferation and invasion in EM by regulating /TRIM59. ESCs were isolated from eutopic and ectopic endometrial tissues, followed by the determination of Cytokeratin 19 and Vimentin expressions in cells.
View Article and Find Full Text PDFMedicine (Baltimore)
September 2021
The aim of this study was to identify genes and functional pathways associated with damaged cartilage tissues of knee using microarray analysis.The gene expression profile GSE129147 including including 10 knee cartilage tissues from damaged side and 10 knee nonweight-bearing healthy cartilage was downloaded and bioinformatics analysis was made.A total of 182 differentially-expressed genes including 123 up-regulated and 59 down-regulated genes were identified from the GSE129147 dataset.
View Article and Find Full Text PDFObjective: The present study aimed to evaluate and analyze the results of karyotyping by amniocentesis and next generation sequencing (NGS)-based noninvasive prenatal DNA testing (NIPT) for the prenatal diagnosis of fetal chromosomal disorders.
Methods: A total of 2267 high-risk pregnant females with the indications for prenatal diagnosis who met the enrollment criteria between January 2015 and May 2019 at the Affiliated Hospital of Inner Mongolia Medical University were included and underwent NGS-based NIPT in the present study. Amniocentesis, chromosome karyotyping by cell culture, and follow-up of the pregnancy outcomes were also conducted in the NIPT-positive pregnant females to assess the consistency between NIPT and results of karyotyping by amniocentesis.
J Chromatogr B Analyt Technol Biomed Life Sci
May 2021
The determination of cause of death is one of the most important tasks in forensic practice. However, asphyxia is a difficult cause of death to determine, especially when the deceased has an underlying disease that can lead to a sudden unexpected death, such as coronary atherosclerotic heart disease (CAHD, which is the leading cause of sudden cardiac death, SCD), because its determination is currently still based on an exclusion strategy. In this study, gas chromatography coupled with high-resolution mass spectrometry (GC-HRMS)-based untargeted metabolomics was employed to obtain the pulmonary metabolic profiles of rats who died from asphyxia and SCD.
View Article and Find Full Text PDFBackground: Guidelines recommend invasive mediastinal staging for patients with non-small cell lung cancer and a "central" tumor. However, there is no consensus definition for central location. As such, the decision to perform invasive staging largely remains on an empirical foundation.
View Article and Find Full Text PDFDiatom examinations have been widely used to perform drowning diagnosis in forensic practice. However, current methods for recognizing diatoms, which use light or electron microscopy, are time-consuming and laborious and often result in false positive or negative decisions. In this study, we demonstrated an artificial intelligence (AI)-based system to automatically identify diatoms in conjunction with a classical chemical digestion approach.
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