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Nevin Manimala Statistics

Comparing Mentalizing Abilities in Older Adults with and without Common Mental Disorders

Psychopathology. 2022 Mar 4:1-9. doi: 10.1159/000522309. Online ahead of print.

ABSTRACT

INTRODUCTION: The concept of mentalization is of central importance not only in modern psychotherapy but also in geriatric psychotherapy. In relation to older people, deficits in some aspects of the ability to mentalize, such as the theory of mind (ToM), affect perception, and metacognitive skills, are known. However, little is known about the mentalization ability of older people with mental disorders. The aim of the present study was to investigate the mentalizing abilities of older patients with depressive and anxious symptoms.

METHODS: In this study, the ability to mentalize using the Mentalization Questionnaire (MZQ), the HEALTH-49 questionnaire, Trail-Making Test (executive functions), and Reading-the-Mind-in-the-eyes-test (ToM) was studied in a clinical (n = 150) and a nonclinical comparison sample of people (n = 150) in different age groups (40-54, 55-69, ≥70). The evaluation of the data was conducted with different statistical methods, especially variance and regression analyses.

RESULTS: The clinical sample of all age groups showed significantly poorer mentalizing skills than the nonclinical samples. There were large correlations to health-related aspects. Additionally, in the regression analysis, only the setting variable (clinical vs. nonclinical) had an influence on the MZQ score and neither gender, education, executive functions nor ToM had a significant influence. Age also had no effect and did not correlate with MZQ scores but did correlate negatively with ToM.

CONCLUSIONS: The results show the importance of mentalization concepts for mental disorders in patients in the second half of life. There are indications of an imbalance of different aspects of mentalizing ability, especially between self- and other-related mentalizing abilities. Improving this balance could be a goal of therapeutic interventions.

PMID:35249029 | DOI:10.1159/000522309

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Nevin Manimala Statistics

Reasons for participation and non-participation in colorectal cancer screening

Public Health. 2022 Mar 3;205:83-89. doi: 10.1016/j.puhe.2022.01.010. Online ahead of print.

ABSTRACT

OBJECTIVES: The aim of the present analysis is to identify the reasons for accepting or rejecting the invitation to be screened by the Faecal Immunochemical Test as part of the free Danish screening programme for colorectal cancer (CRC).

STUDY DESIGN: A cross-sectional representative survey of 15,072 Danish citizens aged 50-80 years was collected in 2019 via a Web-based questionnaire administered by Statistics Denmark. Among the net sample of 6807 respondents (45%), 177 were excluded because of current treatment for colorectal disease.

METHODS: To determine the reasons for accepting or refusing the invitation to be screened for CRC, a latent class analysis was conducted, which allowed participants to provide several reasons for acceptance or rejection of screening.

RESULTS: The most important reason for participating in CRC screening was the active public programme. A further reason for participation was the perceived risk for CRC, mainly in combination with the public programme. The reasons for participation did not differ between individuals who had participated and those who intended to participate when offered. Among participants who declined screening, the most frequent reasons were that they forgot to participate or that they were concerned about the unpleasant test procedure. Among individuals who intended to decline screening, a perceived low risk for CRC was the most frequently cited reason.

CONCLUSIONS: Recommendation from a general practitioner (GP) was not given as a frequent reason for CRC screening participation which is discussed as a challenge to participation rates in population based screening program The main reasons reported for non-participation in CRC screening (i.e. forgot to participate or the unpleasant test procedure) might be addressed by a stronger endorsement from GPs.

PMID:35248951 | DOI:10.1016/j.puhe.2022.01.010

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Nevin Manimala Statistics

Determining the reliability of rapid SARS-CoV-2 antigen detection in fully vaccinated individuals

J Clin Virol. 2022 Feb 19;148:105119. doi: 10.1016/j.jcv.2022.105119. Online ahead of print.

ABSTRACT

BACKGROUND: Rapid antigen detection tests (RADT) are commonly used as SARS-CoV-2 diagnostic tests both by medical professionals and laypeople. However, the performance of RADT in vaccinated individuals has not been fully investigated.

OBJECTIVES: RT-qPCR and rapid antigen detection testing were performed to evaluate the performance of the Standard Q COVID-19 Ag Test in detecting SARS-CoV-2 breakthrough infections in vaccinated individuals.

STUDY DESIGN: Two swab specimens, one for RT-qPCR and one for RADT, were collected from vaccinated individuals in an outpatient clinic. For comparison of RADT performance in vaccinated and unvaccinated individuals, a dataset already published by this group was used as reference.

RESULTS: During the delta wave, a total of 696 samples were tested with both RT-qPCR and RADT that included 692 (99.4%) samples from vaccinated individuals. Of these, 76 (11.0%) samples were detected SARS-CoV-2 positive by RT-qPCR and 45 (6.5%) samples by the Standard Q COVID-19 Ag test. Stratified by Ct values, sensitivity of the RADT was 100.0%, 94.4% and 81.1% for Ct ≤ 20 (n=18), Ct ≤ 25 (n=36) and Ct ≤ 30 (n=53), respectively. Samples with Ct values ≥ 30 (n=23) were not detected. Overall RADT specificity was 99.7% and symptom status did not affect RADT performance. Notably, RADT detected 4 out of 4 samples of probable Omicron variant infection based on single nucleotide polymorphism analysis.

CONCLUSION: Our results show that RADT testing remains a valuable tool in detecting breakthrough infections with high viral RNA loads.

PMID:35248992 | DOI:10.1016/j.jcv.2022.105119

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Nevin Manimala Statistics

Hemoglobin concentration is associated with the hippocampal volume in community-dwelling adults

Arch Gerontol Geriatr. 2022 Feb 26;101:104668. doi: 10.1016/j.archger.2022.104668. Online ahead of print.

ABSTRACT

BACKGROUND: This study examined whether the hemoglobin concentration is correlated with the hippocampal volume using voxel-based morphometry (VBM).

METHODS: This cross-sectional study included 1923 community dwellers, aged 40‒89 years, from the sixth wave of the National Institute for Longevity Sciences, Longitudinal Study of Aging. The hemoglobin levels were determined through blood examination. The regional cortical volumes were evaluated using three-dimensional T1-weighted magnetic resonance images. Following preprocessing with a statistical parametric mapping software, a VBM analysis of covariance design was implemented to identify the regional gray matter volumes related to hemoglobin concentration, while adjusting for age, sex, education, body mass index, depressive symptoms, alcohol consumption status, smoking status, medical history, and the estimated glomerular filtration rate.

RESULTS: VBM analysis revealed a significantly positive correlation between the hemoglobin concentration and gray matter volume in the bilateral anterior hippocampus and the amygdala clusters as well as in the cingulate and middle temporal gyri, cerebellum, and superior sagittal and transverse sinuses.

CONCLUSIONS: The hemoglobin concentration could be positively associated with the hippocampal volume among community-dwelling middle-aged and older adults, which highlights the importance of monitoring the hemoglobin concentration in older adults to decrease the possibility of neurodegeneration.

PMID:35248921 | DOI:10.1016/j.archger.2022.104668

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Nevin Manimala Statistics

Mediating effects of gut microbiota in the associations of air pollutants exposure with adverse pregnancy outcomes

Ecotoxicol Environ Saf. 2022 Mar 3;234:113371. doi: 10.1016/j.ecoenv.2022.113371. Online ahead of print.

ABSTRACT

BACKGROUND: The aim of this study was to investigate alterations in gut microbiota after exposure to air pollutants during pregnancy and its mediation effect in inducing adverse pregnancy outcomes (APOs).

METHODS: Participants (n = 916) were enrolled between 2017 and 2018 from a prospective cohort study of pregnant women in Guangzhou, China. The relative abundance of fecal microbiota was profiled using 16SrRNA V4 region sequencing. Exposure to air pollutants in each trimester of pregnancy was assessed using measurements from the nearest monitoring station. APOs including pre-term birth (PTB), post-term birth (POTB), low birth weight (LBW), macrosomia fetus (MF), birth defects (BDs), pathological cesarean section (PCS) and postpartum hemorrhage (PPH)) were determined by referring to reliable clinical records and diagnostic criteria. Univariate analysis, multivariate analysis and mediation analysis were performed to estimate the association among air pollutants, gut microbiota and APOs.

RESULTS: Air pollutants exposure during pregnancy was significantly correlated with the alterations in the gut microbiota, and increased risks of various APOs by 1.07-1.36-fold (P < 0.05). The mediation analyses indicated that alterations in Eggerthella, Phascolarctobacterium and Clostridium partially mediated the effects of air pollutants exposure (PM2.5, PM10, O3, NO2 and SO2) on APOs. The relative abundance of f_Micrococcaceae explained 11.39%, 64.90% and 54.80% of the correlation between SO2, PM2.5, PM10 and POTB, respectively; whereas g_Rothia explained 11.97%, 67.80% and 54.50%, respectively. g_Parabacteroides explained 53.0% of the correlation between PM2.5 and PTB.

CONCLUSIONS: Increased air pollutants exposure during pregnancy may induce adverse pregnancy outcomes via alteration of the gut microbiota.

PMID:35248925 | DOI:10.1016/j.ecoenv.2022.113371

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Nevin Manimala Statistics

Development and validation of a novel evaporation setup-assisted TLC method with fluorescence detection for determination of flibanserin in pharmaceutical and biological samples

J Chromatogr B Analyt Technol Biomed Life Sci. 2022 Mar 2;1195:123204. doi: 10.1016/j.jchromb.2022.123204. Online ahead of print.

ABSTRACT

A specific and sensitive thin layer chromatographic method coupled with fluorescence detection for determination of flibanserin (FLN) that treats woman hypoactive sexual desire disorder was developed. The proposed method depends on the enhancement of FLN native fluorescence intensity via the exposure of the developed TLC plate to concentrated hydrochloric acid vapors. Herein, an evaporation setup needed for HCl vapors exposure step was designed for the first time to ensure a uniform distribution of the vapors throughout the developed bands on the plate. Chloroform: methanol (9.5: 0.5, v/v) was the optimum mobile phase that gave a compact band (Rf= 0.44 ± 0.02) using TLC aluminium plates precoated with silica gel G 60F254 as a stationary phase. After exposure of the developed TLC plate to HCl vapors, the FLN bands emission intensities were measured after excitation at 275 nm. Conferring ICH guidelines, the linearity range was 20.0 – 1500.0 ng/band with a good linear relationship (r= 0.9998). Detection and quantitation limits were 5.12 and 15.50 ng/band, respectively. Also, the method was validated for accuracy, precision, robustness, specificity and selectivity. Statistical analysis verified the suitability of the proposed method for estimation of FLN in tablets and in human plasma with acceptable recoveries (98.07-101.45%).

PMID:35248898 | DOI:10.1016/j.jchromb.2022.123204

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Nevin Manimala Statistics

Genetic regulation of DNA methylation yields novel discoveries in GWAS of colorectal cancer

Cancer Epidemiol Biomarkers Prev. 2022 Mar 3:cebp.0724.2021. doi: 10.1158/1055-9965.EPI-21-0724. Online ahead of print.

ABSTRACT

BACKGROUND: Colorectal cancer (CRC) has a strong epigenetic component that is accompanied by frequent DNA methylation (DNAm) alterations in addition to heritable genetic risk. It is of interest to understand the interrelationship of germline genetics, DNAm, and CRC risk.

METHODS: We performed a genome-wide methylation quantitative trait locus (meQTL) analysis in 1355 people, assessing the pairwise associations between genetic variants and lymphocytes methylation data. In addition, we used penalized regression with cis-genetic variants +/- 1Mb of methylation to identify genome-wide heritable DNAm. We evaluated the association of genetically predicted methylation with CRC risk based on GWAS of over 125,000 cases and controls using the multivariate sMiST as well as univariately via examination of marginal association with CRC risk.

RESULTS: Of the 142 known CRC genome-wide association studies (GWAS) loci, 47 were identified as meQTLs. We identified 4 novel CRC associated loci (NID2, ATXN10, KLHDC10 and CEP41) that reside over 1Mb outside of known CRC loci and 10 secondary signals within 1Mb of known loci.

CONCLUSIONS: Leveraging information of DNAm regulation into genetic association of CRC risk reveals novel pathways in CRC tumorigenesis. Our summary statistics-based framework sMiST provides a powerful approach by combining information from the effect through methylation and residual direct effects of the meQTLs on disease risk. Further validation and functional follow-up of these novel pathways are needed.

IMPACT: Using genotype, DNA methylation, GWAS, we identified four new CRC risk loci. We studied the landscape of genetic regulation of DNA methylation via single-SNP and multi-SNP meQTL analyses.

PMID:35247911 | DOI:10.1158/1055-9965.EPI-21-0724

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Nevin Manimala Statistics

Improving self-efficacy in seizure first aid: Developing a seizure first aid certification program in the United States

Epilepsy Behav. 2022 Mar 2;129:108624. doi: 10.1016/j.yebeh.2022.108624. Online ahead of print.

ABSTRACT

OBJECTIVES: Seizures and epilepsy are very common neurologic disorders, yet knowledge of how to help a person having a seizure is sorely lacking, increasing the potential for injury and early death for people with seizures. We developed a standardized seizure first aid (SFA) training certification for the general public and evaluated its impact on knowledge and self-efficacy about SFA and program satisfaction.

METHODS: The Epilepsy Foundation’s SFA certification was developed by a multidisciplinary group of experts, with extensive review, feasibility testing, and analysis of pilot tests from 10 sessions with 177 participants. Pre/post assessments were conducted immediately prior to and after participation in the 60-90-min program. Data from 94 people with complete pre/post assessments were used for analysis of demographics, program outcomes, and satisfaction. Descriptive statistics, paired sample T-tests, and Cronbach α coefficients were conducted.

RESULTS: Participants were over age 18, primarily female, and white/Caucasian. Significant improvements were seen in both SFA knowledge and self-efficacy on pre/post assessments across all pilot sites. Fourteen of 23 scale items had significant pre/post improvements. Training satisfaction was rated high by almost all participants.

CONCLUSIONS: The Epilepsy Foundation’s Seizure First Aid certification focuses on ability to recognize seizure symptoms, respond with correct first aid steps, and know when emergency help is needed. Pilot assessments support increased knowledge and self-confidence, critical to promoting positive behavior change. This program offers an easy and scalable way for the general public to learn SFA and enhance seizure recognition and safety of people with seizures.

PMID:35247833 | DOI:10.1016/j.yebeh.2022.108624

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Nevin Manimala Statistics

EBC-SURE (exhaled breath condensate- scanning using rapid electro analytics): A non-faradaic and non-invasive electrochemical assay to screen for pro-inflammatory biomarkers in human breath condensate

Biosens Bioelectron. 2022 Feb 24;206:114117. doi: 10.1016/j.bios.2022.114117. Online ahead of print.

ABSTRACT

The innovation of this work lies in the trace detection of inflammatory biomarkers (IL-6, hs-CRP) in human exhaled breath condensate on the developed EBC-SURE platform as a point-of-care aid for respiratory disorder diagnosis. The unique design of the EBC-SURE leverages non-faradaic electrochemical impedance spectroscopy to capture target-specific biomolecular interactions for highly sensitive biomarker detection. For sensor calibration, EBC-SURE’s performance is assessed to measure the response of the sensor to a known concentration by spike and recovery analysis with a recovery error of <20% and an extended dynamic range over 3-log orders. The lowest detection limits for IL-6 and hs-CRP detection in EBC were found to be 3.2 pg/mL and 4 pg/mL respectively. The intra-assay and inter-assay efficacy of EBC-SURE for its usage as a diagnostic device was established through repeatability and reproducibility (over 48 h s) performance testing. The percentage variations (<20%) met the Clinical and Laboratory Standards Institute standards (CLSI) indicating a highly stable performance for robust biomarker detection. EBC-SURE generated highly selective IL-6 and hs-CRP responses in the presence of other non-specific cytokines. Statistical validation methods- Correlation and Bland Altman analysis established the one-to-one agreement between EBC-SURE and the reference method. Correlation analysis generated a Pearson’s R value of 0.99 for IL-6 and hs-CRP. Bland-Altman analysis indicated a good agreement between both the methods with all data points confined within the ±2SD limits. We have demonstrated EBC-SURE’s ability in detecting inflammatory biomarkers in human breath condensate towards developing a non-invasive technology that can quantify biomarker levels associated with healthy and acute inflammatory conditions.

PMID:35247857 | DOI:10.1016/j.bios.2022.114117

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Nevin Manimala Statistics

Effects of workstation adjustment to reduce postural exposure and perceived discomfort among office workers – A cluster randomized controlled trial

Appl Ergon. 2022 Mar 2;102:103738. doi: 10.1016/j.apergo.2022.103738. Online ahead of print.

ABSTRACT

This study aimed to evaluate the effects of workstation adjustment to reduce postural exposure and perceived discomfort among office workers in a cluster randomized controlled trial. Experimental (EG, n = 31) and control groups (CG, n = 30) were compared before (pre-intervention), immediately (post-intervention), and 3 months after (follow up) the intervention. EG received workstation adjustments and CG did not received the intervention. Postural exposure of head, upper back and upper arms was objectively measured by inclinometers. Overall level of perceived discomfort for the whole body was evaluated using a visual analogue scale (0-100 mm). EG showed a statistically significant reduction on the head (pre: 10.1°, SD 5.7°; post: 6.6°, SD 4.7°) and upper back flexion (pre: 15.4°, SD 10.7°; post: 10.4°, SD 8.4°) from pre to post-intervention. EG also showed a statistically significant reduction from pre (50.7°, SD 9.5°) to post-intervention (42.1°, SD 7.6°) and from pre to follow up (41.6°, SD 6.5°) on upper arm elevation. CG did not show any difference between evaluations. Perceived discomfort increased 7.2 (SD 2.0) mm in CG and decreased 22.1 (SD 2.2) mm in EG between pre and post intervention. The variation between pre intervention and follow up was 4.5 (SD 1.2) mm increase for the CG and 24.1 (SD 1.5) mm of reduction for the EG (P < 0.01). There was no significant difference for the post intervention and follow up for both groups (P > 0.05). The results show evidence of the workstation adjustment to reduce postural exposure and perceived discomfort among office workers.

PMID:35247831 | DOI:10.1016/j.apergo.2022.103738