Category: Statistics

Toxicol Mech Methods. 2024 Apr 4:1-14. doi: 10.1080/15376516.2024.2338389. Online ahead of print.

ABSTRACT

Toxicology studies in early fish life stages serve an important function in measuring the impact of potentially harmful substances, such as crude oil, on marine life. Morphometric analysis of larvae can reveal the effects of such substances in retarding growth and development. These studies are labour intensive and time consuming, typically resulting in only a small number of samples being considered.An automated system for imaging and measurement of experimental animals, using flow-through imaging and an artificial neural network to allow faster sampling of more individuals, has been described previously and used in toxicity experiments. This study compares the performance of the automated imaging and analysis system with traditional microscopy techniques in measuring biologically relevant endpoints using two oil treatments as positive controls.We demonstrate that while the automated system typically underestimates morphometric measurements relative to analysis of manual microscopy images, it shows similar statistical results to the manual method when comparing treatments across most endpoints. It allows for many more individual specimens to be sampled in a shorter time period, reducing labour requirements and improving statistical power in such studies, and is non-invasive allowing for repeated sampling of the same population.

PMID:38572598 | DOI:10.1080/15376516.2024.2338389

J Dent Educ. 2024 Apr 4. doi: 10.1002/jdd.13539. Online ahead of print.

ABSTRACT

PURPOSE/OBJECTIVES: Treating intraosseous lesions (IOLs) and interradicular bone lesions (IRLs) is an extremely technical dental procedure in periodontics. Instrumentation of these lesions is often perceived as difficult by students and inexperienced dentists before they perform a certain number of procedures on patients in the clinic. The aim of this article is to evaluate a cost-effective three-dimensional (3D)-printed educational simulator for the periodontal treatment of IOLs/IRLs (including scaling, incisions and sutures).

METHODS: The simulators were first developed digitally, and then manufactured using printable resins and specific materials; finally, they were assembled using different bonding systems. To evaluate the simulators, assessments were gathered from two target populations: undergraduate students and periodontics experts. These individuals tested the simulator and completed a cross-sectional questionnaire based on a Likert scale with comparative and pedagogical items scored from one to five. The purpose of the questionnaire was to compare our simulator to clinical reality (i.e., operation on human jaws) and to an animal simulator (i.e., simulation of porcine jaws). The results are expressed as the mean and standard deviation and were statistically analyzed with the Wilcoxon signed-rank test.

RESULTS: Overall, the results were satisfactory for both groups of testers (4.70 and 4.61 out of five for students and experts, respectively, for global satisfaction).

CONCLUSIONS: The overall educational relevance of the simulator designed herein highlights the fact that 3D-printed educational simulators could enable efficient cognitive-functional learning for clinical IOL/IRL treatment.

PMID:38572587 | DOI:10.1002/jdd.13539

Skin Res Technol. 2024 Apr;30(4):e13652. doi: 10.1111/srt.13652.

ABSTRACT

OBJECTIVE: To investigate whether compression therapy after thermal ablation of varicose veins can improve the prognosis of patients.

METHODS: Systematic research were applied for Chinese and English electronic databases(PubMed, Web of Science, Cochrane Library, CNKI, Wanfang, VIP Databases). Eligible prospective studies that comparing the efficacy of compression therapy and non-compression therapy on patients after thermal ablation of varicose veins were included. The interest outcome such as pain, quality of life (QOL), venous clinical severity score (VCSS), time to return to work and complications were analyzed.

RESULTS: 10 studies were of high quality, and randomized controlled trials involving 1,545 patients met the inclusion criteria for this study. At the same time, the meta-analysis showed that the application of compression therapy improved pain (SMD: -0.51, 95% CI: -0.95, -0.07) but exhibited no statistically significant effect on QOL (SMD: 0.04, 95% CI: -0.08, 0.16), VCSS (MD: -0.05, 95% CI: -1.19, 1.09), time to return to work (MD: -0.43, 95% CI: -0.90, 0.03), total complications (RR: 0.54, 95% CI: 0.27, 1.09), and thrombosis (RR: 0.71, 95% CI: 0.31, 1.62).

CONCLUSION: Compression therapy after thermal ablation of varicose veins can slightly relieve pain, but it has not been found to be associated with improvement in other outcomes.

PMID:38572582 | DOI:10.1111/srt.13652

Hosp Pediatr. 2024 Apr 4:e2023007451. doi: 10.1542/hpeds.2023-007451. Online ahead of print.

ABSTRACT

OBJECTIVE: To determine if electronic medical record (EMR) changes and implementation of a study on firearm storage practices changed identification of firearm exposure in children presenting to a pediatric emergency department (PED) with mental health complaints. We also sought to determine the accuracy of information collected on firearm storage practices.

METHODS: Retrospective study of EMR documentation of firearm exposure in PED patients with mental health complaints from January 20, 2015 until November 20, 2017. EMR changes occurred on January 20, 2016 and the firearms study began on February 13, 2016. The primary outcome was documentation of firearm exposure. Secondary outcomes were documentation of unsafe firearm storage practices. We also examined differences between clinical and research documentation of unsafe firearm storage practices post-intervention. We compared groups using descriptive statistics and chi-squared tests. We used statistical process control to examine the relationship between interventions and changes in outcomes.

RESULTS: 5582 encounters were examined. Identification of firearm exposure increased from 11 to 17% postintervention. Identification of unsafe storage practices increased from 1.9% to 4.4% across all encounters. Special cause variation in both metrics occurred concurrently with the interventions. Postintervention, unsafe firearms storage practices in firearm owning families were under-identified (39% identified as not triple-safe in clinical data vs 75% in research data).

CONCLUSIONS: EMR changes and implementation of a firearms study improved identification of firearm exposure and unsafe storage practices in families of PED patients being evaluated for mental health complaints. However, unsafe storage practices continued to be under-identified in firearm-owning families.

PMID:38572566 | DOI:10.1542/hpeds.2023-007451

Med Pr. 2024 Apr 4:184351. doi: 10.13075/mp.5893.01488. Online ahead of print.

ABSTRACT

BACKGROUND: The COVID-19 disease has a negative impact on the psychophysiological health of populations worldwide, including a decrease in overall physical performance and an increase in fatigue. Fatigue was one of the main symptoms reported by patients and persisted for several weeks after infection with COVID-19. Although the phenomenon of fatigue is still poorly understood, physical activity can be a supportive factor in combating feelings of fatigue and lack of energy. The purpose of this research was to assess the physical activity (PA) and fatigue levels of teachers in Poland and the United Kingdom in the first year after the COVID-19 pandemic.

MATERIAL AND METHODS: The online research was carried out among 410 teachers from Poland and the United Kingdom. The PA level was assessed using the International Physical Activity Questionnaire (IPAQ). The level of fatigue was measured using the Modified Fatigue Impact Scale (MFIS).

RESULTS: Polish teachers, regardless of sex, are more physically active (the differences relate mainly to walking and moderate activity). When assessing the level of fatigue, there is a significant difference between men and women – the former indicate a higher degree of fatigue, with the difference between the sexes being particularly large in the Polish community. Quite clearly, there is an association between less activity (except walking) and more fatigue. All models show a statistically significant effect of total fatigue on total effort. Physical activity is not very strongly correlated with age but the level of fatigue increases with age.

CONCLUSIONS: The problem of teacher fatigue is unfortunately widespread. They should be encouraged to engage in as much PA as possible during the day. When planning and targeting fatigue reduction campaigns, PA should be encouraged and variables such as age, sex should be taken into account.

PMID:38572529 | DOI:10.13075/mp.5893.01488

Aging Cell. 2024 Apr 4:e14171. doi: 10.1111/acel.14171. Online ahead of print.

ABSTRACT

Aging represents a multifaceted process culminating in the deterioration of biological functions. Despite the introduction of numerous anti-aging strategies, their therapeutic outcomes have often been less than optimal. Consequently, discovering new targets to mitigate aging effects is of critical importance. We applied Mendelian randomization (MR) to identify potential pharmacological targets against aging, drawing upon summary statistics from both the Decode and FinnGen cohorts, with further validation in an additional cohort. To address potential reverse causality, bidirectional MR analysis with Steiger filtering was utilized. Additionally, Bayesian co-localization and phenotype scanning were implemented to investigate previous associations between genetic variants and traits. Summary-data-based Mendelian randomization (SMR) analysis was conducted to assess the impact of genetic variants on aging via their effects on protein expression. Additionally, mediation analysis was orchestrated to uncover potential intermediaries in these associations. Finally, we probed the systemic implications of drug-target protein expression across diverse indications by MR-PheWas analysis. Utilizing a Bonferroni-corrected threshold, our MR examination identified 10 protein-aging associations. Within this cohort of proteins, MST1, LCT, GMPR2, PSMB4, ECM1, EFEMP1, and ISLR2 appear to exacerbate aging risks, while MAX, B3GNT8, and USP8 may exert protective influences. None of these proteins displayed reverse causality except EFEMP1. Bayesian co-localization inferred shared variants between aging and proteins such as B3GNT8 (rs11670143), ECM1 (rs61819393), and others listed. Mediator analysis pinpointed 1,5-anhydroglucitol as a partial intermediary in the influence LCT exhibits on telomere length. Circulating proteins play a pivotal role in influencing the aging process, making them promising candidates for therapeutic intervention. The implications of these proteins in aging warrant further investigation in future clinical research.

PMID:38572516 | DOI:10.1111/acel.14171

Int J Low Extrem Wounds. 2024 Apr 4:15347346241245087. doi: 10.1177/15347346241245087. Online ahead of print.

ABSTRACT

OBJECTIVE: The objective of this study is to assess the efficacy of decompression nursing based on biomechanical principles in managing recurrent diabetic plantar ulcers.

METHODS: Sixty-seven patients experiencing recurrent diabetic plantar ulcers who sought medical attention at Huadong Hospital Affiliated to Fudan University between January 2021 and December 2022 were selected as participants for this study. The participants underwent biomechanics-based decompression nursing. We compared pre-intervention and post-intervention data to assess the differences in relevant observational indexes.

RESULTS: Post-intervention, patients showed significant improvements in foot comfort scores and adherence to pressure reduction behavior compared with their pre-intervention status, with statistical significance (P < 0.05). The intervention was effective in 41 cases (61.19%), with 18 cases (26.87%) showing improvement and 8 cases (11.94%) deemed ineffective, culminating in an overall efficacy rate of 88.06%. All 67 patients achieved complete ulcer healing within an average duration of 58.63 ± 18.13 days, without any recorded recurrences.

CONCLUSION: Biomechanics-based decompression nursing demonstrates effective facilitation of wound healing, yielding expeditious recovery, enhanced comfort, and a reduced incidence of recurrence.

PMID:38572515 | DOI:10.1177/15347346241245087

Sci Prog. 2024 Apr-Jun;107(2):368504241240512. doi: 10.1177/00368504241240512.

NO ABSTRACT

PMID:38572514 | DOI:10.1177/00368504241240512

Neurobiol Stress. 2024 Mar 19;30:100623. doi: 10.1016/j.ynstr.2024.100623. eCollection 2024 May.

ABSTRACT

BACKGROUND: Emotional abuse during childhood and adolescence is thought to be associated with the brain; however, the neural mechanism underlying the cognitive process remains unknown. Therefore, we aimed to investigate the mediating effect of negative automatic thoughts on the relationship between emotional abuse and resting-state functional connectivity (rsFC) during adolescence.

METHOD: Our community sample included 54 adolescents aged 13-17 years in the statistical analysis. Resting-state functional and structural magnetic resonance imaging (MRI) was performed, while emotional abuse and negative automatic thoughts were assessed using self-reported scales. A mediation analysis was used to assess the contributions of early traumatic events and negative automatic thoughts to resting functional connectivity.

RESULT: Higher negative automatic thoughts were associated with lower connectivity in the context of greater emotional abuse (i.e., suppression effect). Thus, the relationships between emotional abuse and connectivity in the precuneus (pCun)-medial prefrontal cortex, parahippocampal cortex-extrastriate cortex, and temporal cortex-temporal pole were decreased by negative automatic thoughts. In contrast, functional connections in the pCun-pCun, pCun-precuneus/posterior cingulate cortex, and nucleus accumbens-somatomotor areas were strongly mediated when emotionally abused adolescents reported a high tendency for negative automatic thoughts.

CONCLUSION: Negative automatic thoughts strengthened the relationship between emotional abuse and rsFC. These findings highlight the underlying cognitive processing of the traumatic event-neural system, supporting the use of cognitive therapy for post-traumatic symptoms.

PMID:38572483 | PMC:PMC10987907 | DOI:10.1016/j.ynstr.2024.100623

Front Endocrinol (Lausanne). 2024 Mar 20;15:1346084. doi: 10.3389/fendo.2024.1346084. eCollection 2024.

ABSTRACT

OBJECTIVE: A Mediterranean dietary pattern, sleeping habits, physical activity, and lifestyle appear to affect reproductive health. There are few reports about whether fertility-specific quality of life (QOL) is linked to infertility treatment outcomes. The aim of this study is to investigate when lifestyle factors and fertility-specific QOL are comprehensively considered, which factors influence assisted reproductive technology (ART) outcomes.

METHODS: This prospective cohort includes 291 women undergoing a first ART treatment at multiple centers in Japan and was designed to evaluate the influence of diet, physical activity, sleeping pattern, computer use duration, and fertility-specific quality of life tool (FertiQoL) score on ART treatment outcomes using a questionnaire. The primary endpoint was the good-quality blastocyst rate per oocyte retrieval and the secondary endpoints were a positive pregnancy test and gestational sac (GS) detection.

RESULTS: The good-quality blastocyst rate per oocyte retrieval tended to be negatively associated with frequent fish consumption. After all embryo transfer (ET) cycles, a positive pregnancy test tended to be positively associated with longer sleep and longer computer use (OR = 1.6, 95% CI = 0.9-2.7 and OR = 1.7, CI = 1.0-2.8, respectively) and negatively associated with a smoking partner (OR = 0.6, CI = 0.3-1.0). GS detection was positively and significantly associated with frequent olive oil intake and longer computer use (OR = 1.7, CI = 1.0-3.0 and OR = 1.7, CI = 1.0-3.0, respectively). After ET cycles with a single blastocyst, a positive pregnancy test was positively and significantly associated with longer computer use (OR = 2.0, CI = 1.1-3.7), while GS detection was significantly more likely in women with longer computer use (OR = 2.1, CI = 1.1-3.8) and tended to be more likely in women with a higher FertiQoL Total scaled treatment score (OR = 1.8, CI = 1.0-3.3). p < 0.05 was considered statistically significant and 0.05 ≤ p <0.01 as tendency.

CONCLUSIONS: Olive oil may be an important factor in dietary habits. Fertility-specific QOL and smoking cessation guidance for partners are important for infertile couples.

PMID:38572478 | PMC:PMC10987689 | DOI:10.3389/fendo.2024.1346084