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Assessing the role of vascular risk factors in dementia: Mendelian randomization meta-analysis and comparison with observational estimates. 评估痴呆中血管危险因素的作用:孟德尔随机荟萃分析和与观察性估计的比较。
F1000Research Pub Date : 2025-02-07 eCollection Date: 2022-01-01 DOI: 10.12688/f1000research.121604.2
Liam Lee, Rosie Walker, William Whiteley
{"title":"Assessing the role of vascular risk factors in dementia: Mendelian randomization meta-analysis and comparison with observational estimates.","authors":"Liam Lee, Rosie Walker, William Whiteley","doi":"10.12688/f1000research.121604.2","DOIUrl":"10.12688/f1000research.121604.2","url":null,"abstract":"<p><strong>Background: </strong>Although observational studies demonstrate that higher levels of vascular risk factors are associated with an increased risk of dementia, these associations might be explained by confounding or other biases. Mendelian randomization (MR) uses genetic instruments to test causal relationships in observational data. We sought to determine if genetically predicted modifiable risk factors (type 2 diabetes mellitus, low density lipoprotein cholesterol, high density lipoprotein cholesterol, total cholesterol, triglycerides, systolic blood pressure, diastolic blood pressure, body mass index, and circulating glucose) are associated with dementia by meta-analysing published MR studies. Secondary objectives were to identify heterogeneity in effect estimates across primary MR studies and to compare meta-analysis results with observational studies.</p><p><strong>Methods: </strong>MR studies were identified by systematic search of Web of Science, OVID and Scopus. We selected primary MR studies investigating the modifiable risk factors of interest. Only one study from each cohort per risk factor was included. A quality assessment tool was developed to primarily assess the three assumptions of MR for each MR study. Data were extracted on study characteristics, exposure and outcome, effect estimates per unit increase, and measures of variation. Effect estimates were pooled to generate an overall estimate, I <sup>2</sup> and Cochrane Q values using fixed-effect model.</p><p><strong>Results: </strong>We screened 5211 studies and included 12 primary MR studies after applying inclusion and exclusion criteria. Higher genetically predicted body mass index was associated with a higher odds of dementia (OR 1.03 [1.01, 1.05] per 5 kg/m <sup>2</sup> increase, one study, p=0.00285). Fewer hypothesized vascular risk factors were supported by estimates from MR studies than estimates from meta-analyses of observational studies.</p><p><strong>Conclusion: </strong>Genetically predicted body mass index was associated with an increase in risk of dementia.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"11 ","pages":"565"},"PeriodicalIF":0.0,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11880757/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143566610","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Med-ImageTools: An open-source Python package for robust data processing pipelines and curating medical imaging data. Med-ImageTools:一个开源Python包,用于健壮的数据处理管道和管理医学成像数据。
F1000Research Pub Date : 2025-02-07 eCollection Date: 2023-01-01 DOI: 10.12688/f1000research.127142.2
Sejin Kim, Michal Kazmierski, Kevin Qu, Jacob Peoples, Minoru Nakano, Vishwesh Ramanathan, Joseph Marsilla, Mattea Welch, Amber Simpson, Benjamin Haibe-Kains
{"title":"Med-ImageTools: An open-source Python package for robust data processing pipelines and curating medical imaging data.","authors":"Sejin Kim, Michal Kazmierski, Kevin Qu, Jacob Peoples, Minoru Nakano, Vishwesh Ramanathan, Joseph Marsilla, Mattea Welch, Amber Simpson, Benjamin Haibe-Kains","doi":"10.12688/f1000research.127142.2","DOIUrl":"10.12688/f1000research.127142.2","url":null,"abstract":"<p><strong>Background: </strong>Machine learning and AI promise to revolutionize the way we leverage medical imaging data for improving care but require large datasets to train computational models that can be implemented in clinical practice. However, processing large and complex medical imaging datasets remains an open challenge.</p><p><strong>Methods: </strong>To address this issue, we developed Med-ImageTools, a new Python open-source software package to automate data curation and processing while allowing researchers to share their data processing configurations more easily, lowering the barrier for other researchers to reproduce published works.</p><p><strong>Use cases: </strong>We have demonstrated the efficiency of Med-ImageTools across three different datasets, resulting in significantly reduced processing times.</p><p><strong>Conclusions: </strong>The AutoPipeline feature will improve the accessibility of raw clinical datasets on public archives, such as the Cancer Imaging Archive (TCIA), the largest public repository of cancer imaging, allowing machine learning researchers to process analysis-ready formats without requiring deep domain knowledge.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"12 ","pages":"118"},"PeriodicalIF":0.0,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11847151/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143482576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Do more pregnancies increase the risk of periodontal disease? 多怀孕会增加患牙周病的风险吗?
F1000Research Pub Date : 2025-02-06 eCollection Date: 2024-01-01 DOI: 10.12688/f1000research.155151.2
Mohammad Helmi, Eman AlJoghaiman
{"title":"Do more pregnancies increase the risk of periodontal disease?","authors":"Mohammad Helmi, Eman AlJoghaiman","doi":"10.12688/f1000research.155151.2","DOIUrl":"10.12688/f1000research.155151.2","url":null,"abstract":"<p><strong>Background: </strong>Hormonal changes in pregnancy and their induced effect on periodontal health are well documented. The present study is aimed at the potential repercussions of multiple pregnancies on periodontal health.</p><p><strong>Materials and methods: </strong>Our study utilized data from key sections of the NHANES. All the pertaining and relevant data for the study is collected. Our exposure variable was the number of pregnancies, and the outcome variable was periodontal disease. The number of pregnancies is classified as one, two, three, four, or more. Age, gender, race/ethnicity, education, poverty/income ratio, marital status, and other variables. Multiple logistic regression models were employed to assess the impact of multiple pregnancies on periodontal disease.</p><p><strong>Result: </strong>The crude and multiple logistic regression analyses revealed that none of the variables were significantly associated with the prevalence of periodontitis. In univariate analysis, patients with one or two pregnancies had higher odds of experiencing periodontitis (OR 1.154, 95% CI 0.748-1.779), (OR 1.464, 95% CI 0.864-2.483) respectively. However, these associations did not reach statistical significance.</p><p><strong>Conclusion: </strong>Within the limitation of the study, there is no significant relationship between parity and the prevalence of periodontitis, the longitudinal study may be warranted to delve deeper into any potential associations.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"13 ","pages":"1238"},"PeriodicalIF":0.0,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11868742/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143540641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
"Unmasking the Uncommon": A case series of multi-drug resistant Elizabethkingia meningoseptica causing late-onset sepsis and meningitis in preterm neonates. “揭开不寻常的面纱”:一系列多药耐药的伊丽莎白氏脑膜炎败血症导致早产儿迟发性败血症和脑膜炎的病例。
F1000Research Pub Date : 2025-02-06 eCollection Date: 2024-01-01 DOI: 10.12688/f1000research.158137.2
Prajnha U P, Anisha Maria Fernandes, Suchitra Shenoy M, Sinchana Bhat
{"title":"\"Unmasking the Uncommon\": A case series of multi-drug resistant Elizabethkingia meningoseptica causing late-onset sepsis and meningitis in preterm neonates.","authors":"Prajnha U P, Anisha Maria Fernandes, Suchitra Shenoy M, Sinchana Bhat","doi":"10.12688/f1000research.158137.2","DOIUrl":"10.12688/f1000research.158137.2","url":null,"abstract":"<p><p><i>Elizabethkingia meningoseptica</i> is an uncommon nosocomial pathogen that causes meningitis, pneumonia, and sepsis in neonates and in immunocompromised individuals. It exhibits resistance to many commonly employed first-line antibiotics used to treat gram-negative pathogens. Herein, we present three cases of late-onset sepsis with multi-drug resistant (MDR) <i>Elizabethkingia meningoseptica</i> in high-risk neonates. Case 1 was a one-day-old preterm low-birth-weight infant who presented with respiratory distress syndrome and septic shock. The patient was intubated and administered empirical broad-spectrum antibiotics and antifungal agents. Blood culture grew <i>Candida krusei,</i> hence Amphotericin B was initiated. Repeat blood culture on day 27 showed gram-negative bacilli, identified as <i>Elizabethkingia meningoseptica</i> by MALDI-TOF <i>.</i> Antibiotic susceptibility testing (AST) revealed resistance to Piperacillin/Tazobactam, but sensitivity to Vancomycin, Levofloxacin, and Minocycline. IV Vancomycin was administered, which resulted in clinical improvement and negative blood culture results. Case 2 was an eleven-day-old preterm, low-birth-weight baby who presented with fever. Initial investigations revealed normal complete blood counts (CBC) parameters and elevated CRP levels. Blood and CSF cultures isolated <i>Elizabethkingia meningoseptica</i> with a similar AST pattern. Intravenous Ciprofloxacin was initiated with clinical improvement and negative follow-up blood cultures. Case 3 was a one-day-old preterm baby, appropriate-to-gestational age, presenting with respiratory distress syndrome. The infant was intubated and started on inotropic support and intravenous antibiotics. Blood cultures on day 4 showed <i>Elizabethkingia meningoseptica</i> and Vancomycin was started. Follow-up cultures on days 6 and 14 grew <i>Acinetobacter baumannii.</i> A combination of Levofloxacin and Colistin was added, and blood cultures were negative after seven days, with clinical improvement. <i>Elizabethkingia meningoseptica</i> is a significant cause of hospital-acquired infections, especially in Neonatal Intensive Care Unit (NICU), leading to outbreaks. Clinicians must have a high degree of suspicion of <i>E. meningoseptica</i> for gram-negative bacilli causing sepsis and meningitis in high-risk patients. Recent technological advances have enabled accurate speciation to guide therapy and reduce morbidity and mortality rates.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"13 ","pages":"1367"},"PeriodicalIF":0.0,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11814954/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143406481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Social distancing between personal belongings during the COVID-19 pandemic. COVID-19大流行期间个人物品之间的社会距离。
F1000Research Pub Date : 2025-02-05 eCollection Date: 2023-01-01 DOI: 10.12688/f1000research.130662.3
Wen Guo, Ayumi Ikeda, Kaito Takashima, Yoshitaka Masuda, Kohei Ueda, Atsunori Ariga, Kyoshiro Sasaki, Yuki Yamada
{"title":"Social distancing between personal belongings during the COVID-19 pandemic.","authors":"Wen Guo, Ayumi Ikeda, Kaito Takashima, Yoshitaka Masuda, Kohei Ueda, Atsunori Ariga, Kyoshiro Sasaki, Yuki Yamada","doi":"10.12688/f1000research.130662.3","DOIUrl":"10.12688/f1000research.130662.3","url":null,"abstract":"<p><strong>Background: </strong>The COVID-19 pandemic has led to instructions and suggestions from governments and experts to maintain social (physical) distance between people to prevent aerosol transmission of the virus, which is now becoming the norm. Thus, we examined whether the pandemic extended the distance between personal belongings.</p><p><strong>Methods: </strong>We recruited 68 university students and instructed them to place their belongings on a long table following another participant (i.e., confederate). We measured the physical distance between the two belongings (i.e., the participant's and the confederate's). We collected data between June 10, 2022 and January 23, 2023. Pre-pandemic data was from Ariga (2016). Analysis was completed with one-tailed <i>t</i>-tests.</p><p><strong>Results: </strong>Compared with the pre-pandemic results, via one-tailed <i>t</i>-test, the distance between the two belongings during the pandemic was significantly longer. Our results supported the hypothesis that the psychological framework for processing people's belongings has dramatically changed during this pandemic.</p><p><strong>Conclusion: </strong>This change may have been driven by social distancing practices or an increase in perceived vulnerability to disease. Our results provide new implications for future public spatial design, in other words, not only the distance between people, but also the distance between their belongings.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"12 ","pages":"199"},"PeriodicalIF":0.0,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11822249/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143413843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Epidemiological profiles and causes of sudden deaths of various ages in Ethiopia: an autopsy-based study. 埃塞俄比亚不同年龄人群猝死的流行病学概况和原因:一项基于尸检的研究。
F1000Research Pub Date : 2025-02-05 eCollection Date: 2023-01-01 DOI: 10.12688/f1000research.142511.2
Alemayehu Shiferaw Lema, Sesen Tsegaye Tekle
{"title":"Epidemiological profiles and causes of sudden deaths of various ages in Ethiopia: an autopsy-based study.","authors":"Alemayehu Shiferaw Lema, Sesen Tsegaye Tekle","doi":"10.12688/f1000research.142511.2","DOIUrl":"10.12688/f1000research.142511.2","url":null,"abstract":"<p><strong>Background: </strong>Sudden death is an important global public health issue. An autopsy is an important source of epidemiological data, as the considerable causes of sudden death remain hermetic until postmortem examination. This study is devoted to evaluating the sociodemographic, behavioral, clinical and pathological characteristics of sudden deaths of various ages in Ethiopia.</p><p><strong>Methods: </strong>This is an observational, prospective, descriptive study that included all sudden deaths observed over 1 year at St. Paul's Hospital and Millennium Medical College, Addis Ababa, Ethiopia.</p><p><strong>Results: </strong>Sudden death (n = 568) accounted for 11.5% (95% CI: 10.6-12.4) of all autopsied cases. There were 482 males and 86 females (M:F ratio of 5.6:1) and a mean age of 44.8±17.349. The peak age group was the fourth and fifth decades, accounting for 43.9% of the cases. Chronic substance abuse and a history of prior illness were declared in 40.1% and 38% of cases of sudden death, respectively. Cardiovascular (36.1%), respiratory (32.6%), and gastrointestinal system (19.5%) pathologies were the most common causes. The leading underlying causes of sudden death were ischemic heart disease and pneumonia. Most (86.6%) sudden deaths occurred outside of a hospital setting.</p><p><strong>Conclusions: </strong>Most of the causes of sudden death in Ethiopia can be prevented and treated. The majority of sudden deaths are silent without preexisting symptoms. Therefore, it is vital to develop public health measures that will help educate the community about the importance of recognizing the manifestation of various clinical conditions and the need to seek immediate clinical help. Furthermore, efforts should be made to make healthcare facilities accessible and affordable with adequate diagnostic and management capacity. Documentation of autopsy-based data could provide important epidemiological information to guide medical services, prevention efforts, and control measures.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"12 ","pages":"1441"},"PeriodicalIF":0.0,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11829148/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143432715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recombinant expression of receptor binding domains of all eight subtypes of botulinum neurotoxin type A for generation of antitoxins with broad reactivity. A型肉毒毒素8种亚型受体结合域的重组表达,产生具有广泛反应性的抗毒素。
F1000Research Pub Date : 2025-02-05 eCollection Date: 2025-01-01 DOI: 10.12688/f1000research.160607.1
Nga Quynh Pham, Tam Trang Mai, Tran Bao Anh Dang, Ly Huong Tran, Quynh Mai Vu, Chien Trong Nguyen, Anh Thi Phuong Tran, Tran Nhat Minh Dang, Van Anh Tran, Thinh Huy Tran, Van Khanh Tran, Hoa Quang Le
{"title":"Recombinant expression of receptor binding domains of all eight subtypes of botulinum neurotoxin type A for generation of antitoxins with broad reactivity.","authors":"Nga Quynh Pham, Tam Trang Mai, Tran Bao Anh Dang, Ly Huong Tran, Quynh Mai Vu, Chien Trong Nguyen, Anh Thi Phuong Tran, Tran Nhat Minh Dang, Van Anh Tran, Thinh Huy Tran, Van Khanh Tran, Hoa Quang Le","doi":"10.12688/f1000research.160607.1","DOIUrl":"10.12688/f1000research.160607.1","url":null,"abstract":"<p><strong>Background: </strong>Botulinum neurotoxin type A (BoNT/A) represents a major threat to global public health because of its most potent toxicity with the longest persistence. Several camelid single-domain antibodies (or VHHs) have been reported to exhibit high neutralizing activity against the receptor binding domain (H <sub>C</sub>) of the BoNT/A subtype used to generate them. However, it remains unclear if these VHHs can neutralize effectively H <sub>C</sub> of other BoNT/A subtypes. This study aimed to generate H <sub>C</sub> domains of all eight BoNT/A subtypes and to screen for VHHs with broad reactivity against these domains.</p><p><strong>Methods: </strong>H <sub>C</sub> domains of BoNT/A1-A8 were recombinantly produced in <i>Escherichia coli.</i> The <i>bont/H <sub>C</sub>A1</i> fragment was amplified from sludge sample and cloned into pET45b vector by Gibson assembly. Expression vectors for H <sub>C</sub> domains of BoNT/A2-A8 were derived from pET45b-H <sub>C</sub>A1 by site-directed mutagenesis and/or in-house gene synthesis. Similarly, VHHs were synthesized and cloned into pET22b vector. Recombinant protein were purified by Ni-NTA spin columns and analyzed by SDS-PAGE. ELISA was used to confirm the antigenicity of H <sub>C</sub> domains and to evaluate the reactivity of VHHs to these domains.</p><p><strong>Results: </strong>SDS-PAGE analysis and ELISA results with commercial polyclonal antibody demonstrated the H <sub>C</sub> domains of all eight BoNT/A subtypes were correctly produced. ELISA results using a VHH panel indicated that, apart from ciA-C2, a well-characterized VHH specific for H <sub>C</sub> of BoNT/A1, two new VHHs were found to recognize the H <sub>C</sub> domains of all BoNT/A subtypes, of which VHH-A3 displayed EC <sub>50</sub> values for these domains close to those of ciA-C2.</p><p><strong>Conclusion: </strong>This study provided a resource to comprehensively identify antitoxins conferring broad protection against BoNT/A.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"14 ","pages":"163"},"PeriodicalIF":0.0,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11880751/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143565824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fuzzy Set Theory Applied on Autometrized Algebra. 模糊集理论在自动化代数中的应用。
F1000Research Pub Date : 2025-02-04 eCollection Date: 2025-01-01 DOI: 10.12688/f1000research.161249.1
Gebrie Yeshiwas Tilahun
{"title":"Fuzzy Set Theory Applied on Autometrized Algebra.","authors":"Gebrie Yeshiwas Tilahun","doi":"10.12688/f1000research.161249.1","DOIUrl":"https://doi.org/10.12688/f1000research.161249.1","url":null,"abstract":"<p><p>This paper introduces fuzzy subalgebras of autometrized algebras and studies their properties. Also, we present fuzzy ideals of autometrized algebras and provide examples to illustrate our findings. We examine the homomorphisms of both the images and the inverse images of fuzzy subalgebras and ideals. Furthermore, we introduce fuzzy congruences on autometrized algebras. We prove that in normal autometrized algebra, the set of all fuzzy ideals is in one-to-one correspondence with the set of all fuzzy congruences.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"14 ","pages":"159"},"PeriodicalIF":0.0,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11871425/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143540645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The dynamics of financial performance and market performance in the context of Indian banking industry. 在印度银行业的背景下,财务绩效和市场绩效的动态。
F1000Research Pub Date : 2025-02-04 eCollection Date: 2024-01-01 DOI: 10.12688/f1000research.151628.2
Ashok Sar, Kshirod Panigrahi
{"title":"The dynamics of financial performance and market performance in the context of Indian banking industry.","authors":"Ashok Sar, Kshirod Panigrahi","doi":"10.12688/f1000research.151628.2","DOIUrl":"https://doi.org/10.12688/f1000research.151628.2","url":null,"abstract":"<p><strong>Background: </strong>This study aims to gain insight into the effect of banks' financial performance on their market performance. We conceptualized the research subject on the assumption that the financial performance of an organization is the most important criterion for triggering movement in its stock price. We explored various models and parameters to evaluate financial performance of banks and found CAMELS being one of the most comprehensive and appropriate model. We considered share price growth of banks to measure their stock market performance.</p><p><strong>Methods: </strong>We collected financial and stock market data pertaining to 32 listed Indian banks for the period 2018 to 2022. The study has employed multiple linear regression analysis of panel data for evaluating the relationship between independent and dependent variables. We adopted panel regression for data analysis and used the Prais- Winsten regression with panel corrected standard errors, as the data suffers from contemporaneous cross-sectional correlation.</p><p><strong>Results: </strong>The results show that net non-performing assets, net interest margins, and return on capital have a significant negative impact on share price growth. The capital adequacy ratio and the current and savings account deposit ratios have a positive insignificant impact. The liquid asset-to-total asset ratio has a negative, insignificant impact. The coefficient of determination indicates that the share price growth of banks is more dependent on other factors which are not included in the regression analysis of this study.</p><p><strong>Conclusion: </strong>This study helps investors and bankers understand the limited impact of financial parameters on banks'stock prices and to look for other parameters which explain the stock price movement better.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"13 ","pages":"657"},"PeriodicalIF":0.0,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11814959/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143405632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Influence of Surface Damage on Miniplates: A Study of Bacterial Attachment Across Various Strains. 微片表面损伤的影响:不同菌株间细菌附着的研究。
F1000Research Pub Date : 2025-02-04 eCollection Date: 2025-01-01 DOI: 10.12688/f1000research.159954.1
Bramasto Purbo Sejati, Tetiana Haniastuti, Ahmad Kusumaatmaja, Maria Goreti Widyastuti
{"title":"The Influence of Surface Damage on Miniplates: A Study of Bacterial Attachment Across Various Strains.","authors":"Bramasto Purbo Sejati, Tetiana Haniastuti, Ahmad Kusumaatmaja, Maria Goreti Widyastuti","doi":"10.12688/f1000research.159954.1","DOIUrl":"10.12688/f1000research.159954.1","url":null,"abstract":"<p><strong>Background: </strong>Miniplates are frequently used in oral and maxillofacial surgery to address malocclusion issues. However, surface damage to miniplates is a significant concern that can affect surgical outcomes and patient quality of life. This study aims to evaluate the influence of miniplate surface damage on bacterial attachment, which may lead to postoperative infections.</p><p><strong>Methods: </strong>Miniplates with varying degrees of surface damage were used in this study. The damaged surfaces were subjected to special treatments to simulate postoperative conditions. Various bacterial strains, including Staphylococcus aureus, Pseudomonas aeruginosa, and Streptococcus mutans, were tested. Each type of bacteria was cultured on different miniplates for specific durations, and bacterial attachment was subsequently measured and analyzed.</p><p><strong>Results: </strong>Surface damage to miniplates significantly influenced bacterial attachment. Miniplates with more severe surface damage exhibited higher levels of bacterial attachment compared to undamaged miniplates. Furthermore, the type of bacteria impacted attachment levels, with certain strains demonstrating higher adhesion than others.</p><p><strong>Conclusion: </strong>Surface damage to miniplates increases the risk of postoperative infections due to enhanced bacterial attachment. Therefore, maintaining the integrity of miniplates during and after orthognathic surgery is crucial. Further research is necessary to develop prevention and management strategies for postoperative infections related to miniplate surface damage.</p>","PeriodicalId":12260,"journal":{"name":"F1000Research","volume":"14 ","pages":"158"},"PeriodicalIF":0.0,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11966096/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143779506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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