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Nevin Manimala Statistics

Infection with Carbapenem-resistant Hypervirulent Klebsiella Pneumoniae: clinical, virulence and molecular epidemiological characteristics

Antimicrob Resist Infect Control. 2023 Nov 13;12(1):124. doi: 10.1186/s13756-023-01331-y.

ABSTRACT

BACKGROUND: Carbapenem-resistant hypervirulent Klebsiella pneumoniae (CR-hvKP) is gradually becoming the dominant nosocomial pathogens in the healthcare setting.

METHODS: A retrospective study was conducted on patients with CR-KP from July 2021 to May 2022 in a teaching hospital. We identified bacterial isolates, collected the clinical data, and performed antimicrobial susceptibility testing, hypermucoviscosity string test, antimicrobial and virulence-associated genotype, as well as multi-locus sequence typing. CR-hvKP was defined as the presence of some combination of rmpA and/or rmpA2 with iucA, iroB, or peg-344. SPSS was used for data analysis. Univariate logistic regression analyses were used for risk factor and all statistically significant variables were included in the multivariate model. Statistical significance was taken to be P < 0.05.

RESULTS: A total of 69 non-duplicated CR-KP isolates were collected, 27 of which were CR-hvKP. Out of the 69 CR-KP strains under investigation, they were distributed across 14 distinct sequence types (STs), wherein ST11 exhibited the highest prevalence, constituting 65.2% (45/69) of the overall isolates. The principal carbapenemase genes identified encompassed blakpc-2, blaNDM-1, and blaOXA-48, with blakpc-2 prevailing as the predominant type, accounting for 73.9% (51/69). A total of 69 CR-KP strains showed high resistance to common clinical antibiotics, with the exception of ceftazidime/avibactam. The ST11 (P = 0.040), ST65 (P = 0.030) and blakpc-2 ST11 clones (P = 0.010) were found to be highly related to hvKp. Regarding the host, tracheal intubation (P = 0.008), intracranial infection (P = 0.020) and neutrophil count (P = 0.049) were significantly higher in the patients with CR-hvKP. Multivariate analysis showed tracheal intubation to be an independent risk factor for CR-hvKP infection (P = 0.030, OR = 4.131). According to the clinical data we collected, tracheal intubation was performed mainly in the elderly with severe underlying diseases, which implied that CR-hvKP has become prevalent among elderly patients with comorbidities.

CONCLUSIONS: The prevalence of CR-hvKP may be higher than expected in the healthcare setting. CR-hvKP is gradually becoming the dominant nosocomial pathogen, and its prevalence and treatment will be a major challenge. It is essential to enhance clinical awareness and management of CR-hvKP infection.

PMID:37953357 | DOI:10.1186/s13756-023-01331-y

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Nevin Manimala Statistics

Married women’s decision-making autonomy on modern contraceptive use and its associated factors in high fertile sub-Saharan Africa countries: a multi-level analysis of Demographic and Health Surveys

Arch Public Health. 2023 Nov 13;81(1):195. doi: 10.1186/s13690-023-01210-3.

ABSTRACT

BACKGROUND: For better maternal and child health, women’s independence on reproductive health issues is crucial; however, couples are restricted from discussing openly with their partner. Regarding this, information about women’s decision-making autonomy is low in the world, including Sub-Saharan Africa; therefore, this study was aimed to assess married women’s decision-making autonomy on modern contraceptive utilization in high fertility SSA countries.

METHODS: Data for this study was obtained from the most recent (2010-2018) Demographic and Health Surveys. A total of weighted sample of 14,575 married reproductive age women was included. A multilevel mixed-effect binary logistic regression model was fitted to identify the significant associated factors of decision-making autonomy on modern contraceptive utilization. Finally, the Adjusted Odds Ratio (AOR) with 95% confidence interval was used to declare as statistical significance.

RESULTS: Overall prevalence of married women decision-making autonomy on modern contraceptive utilization in the high fertile SSA countries is 25.28% (95% CI:18.32%, 32.24%). The factors significantly associated with the decision-making autonomy on modern contraceptive utilization were women’s age 25-34 years (AOR = 1.88, 95% CI = 1.84-1.93) and 35-49 years (AOR = 1.90, 95% CI = 1.82-1.92), had media exposure (AOR = 1.13, 95% CI = 1.00- 1.28), Number of alive children, 1-2 (AOR = 2.35, 95% CI = 1.38-4.01), 3-4 (AOR = 2.98, 95% CI = 1.74-5.10), [Formula: see text] 5 (AOR = 2. 82, 95% CI = 1.63-4.86), educational status; primary education (AOR = 1.93, 95% CI = 1.77-2.83), Secondary and higher (AOR = 2.11, 95% CI = 1.78-2.89), Community media exposure (AOR = 1.80, 95% CI = 1.38-2.34), Community level poverty, (AOR = 1.43, 95% CI = 1.09-1.86) and resides in rural (AOR = 0.67, 95% CI = 0.64-0.71).

CONCLUSION: Women’s decision-making autonomy on modern contraception utilization in this study was low. Therefore, the government should promote women’s autonomy on contraceptive use as an essential component of SRH rights through mass media, with particular attention for, women living in the poorest communities, and those residing in rural settings of the country. Moreover, health professionals should counsel the women about the benefits of using modern contraceptive to help them managing their number of children.

PMID:37953331 | DOI:10.1186/s13690-023-01210-3

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Nevin Manimala Statistics

Outcome differences after orthodontic camouflage treatment in hypo- and hyperdivergent patients – A retrospective cephalometric investigation

Clin Oral Investig. 2023 Nov 13. doi: 10.1007/s00784-023-05321-7. Online ahead of print.

ABSTRACT

OBJECTIVES: To compare differences in outcome in skeletal and dental parameters in hypo- and hyperdivergent Class II patients after extraction of upper first premolars and comprehensive orthodontic treatment.

MATERIALS AND METHODS: 37 Class-II-patients with dental camouflage treatment were divided into a hypo- (n = 18) or a hyperdivergent (n = 19) group depending on the mandibular plane angle (hypo: < 34° or hyper: ≥ 34°). Lateral cephalograms were available before (T1) and after (T2) treatment and were analyzed with customized measurements. Data from a growth survey served as a control and were used to calculate the actual treatment effect. Data were analyzed by one-sample Student’s t-tests and independent Student’s t-tests. Statistical significance was set at p < 0.05.

RESULTS: The measurements showed similar changes in both groups. The effects were mainly dentoalveolar. Hypodivergent patients showed an almost equal increase in anterior and posterior facial height, while hyperdivergent patients only showed an increase in anterior facial height.

CONCLUSIONS: In hyperdivergent patients, the anterior facial height increases despite camouflage treatment. This indicates a tendency towards bite opening and backward rotation of the mandible. Hypodivergent patients do not experience deepening of the bite.

CLINICAL RELEVANCE: In hyperdivergent patients with upper first premolars extraction the anterior facial height increased differently than in hypodivergent patients. This should be considered if a bite opening is a possible contraindication to treatment.

PMID:37953326 | DOI:10.1007/s00784-023-05321-7

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Detecting and dissecting signaling crosstalk via the multilayer network integration of signaling and regulatory interactions

Nucleic Acids Res. 2023 Nov 11:gkad1035. doi: 10.1093/nar/gkad1035. Online ahead of print.

ABSTRACT

The versatility of cellular response arises from the communication, or crosstalk, of signaling pathways in a complex network of signaling and transcriptional regulatory interactions. Understanding the various mechanisms underlying crosstalk on a global scale requires untargeted computational approaches. We present a network-based statistical approach, MuXTalk, that uses high-dimensional edges called multilinks to model the unique ways in which signaling and regulatory interactions can interface. We demonstrate that the signaling-regulatory interface is located primarily in the intermediary region between signaling pathways where crosstalk occurs, and that multilinks can differentiate between distinct signaling-transcriptional mechanisms. Using statistically over-represented multilinks as proxies of crosstalk, we infer crosstalk among 60 signaling pathways, expanding currently available crosstalk databases by more than five-fold. MuXTalk surpasses existing methods in terms of model performance metrics, identifies additions to manual curation efforts, and pinpoints potential mediators of crosstalk. Moreover, it accommodates the inherent context-dependence of crosstalk, allowing future applications to cell type- and disease-specific crosstalk.

PMID:37953325 | DOI:10.1093/nar/gkad1035

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The Human Phenotype Ontology in 2024: phenotypes around the world

Nucleic Acids Res. 2023 Nov 11:gkad1005. doi: 10.1093/nar/gkad1005. Online ahead of print.

ABSTRACT

The Human Phenotype Ontology (HPO) is a widely used resource that comprehensively organizes and defines the phenotypic features of human disease, enabling computational inference and supporting genomic and phenotypic analyses through semantic similarity and machine learning algorithms. The HPO has widespread applications in clinical diagnostics and translational research, including genomic diagnostics, gene-disease discovery, and cohort analytics. In recent years, groups around the world have developed translations of the HPO from English to other languages, and the HPO browser has been internationalized, allowing users to view HPO term labels and in many cases synonyms and definitions in ten languages in addition to English. Since our last report, a total of 2239 new HPO terms and 49235 new HPO annotations were developed, many in collaboration with external groups in the fields of psychiatry, arthrogryposis, immunology and cardiology. The Medical Action Ontology (MAxO) is a new effort to model treatments and other measures taken for clinical management. Finally, the HPO consortium is contributing to efforts to integrate the HPO and the GA4GH Phenopacket Schema into electronic health records (EHRs) with the goal of more standardized and computable integration of rare disease data in EHRs.

PMID:37953324 | DOI:10.1093/nar/gkad1005

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Nevin Manimala Statistics

The Nucleic Acid Knowledgebase: a new portal for 3D structural information about nucleic acids

Nucleic Acids Res. 2023 Nov 11:gkad957. doi: 10.1093/nar/gkad957. Online ahead of print.

ABSTRACT

The Nucleic Acid Knowledgebase (nakb.org) is a new data resource, updated weekly, for experimentally determined 3D structures containing DNA and/or RNA nucleic acid polymers and their biological assemblies. NAKB indexes nucleic acid-containing structures derived from all major structure determination methods (X-ray, NMR and EM), including all held by the Protein Data Bank (PDB). As the planned successor to the Nucleic Acid Database (NDB), NAKB’s design preserves all functionality of the NDB and provides novel nucleic acid-centric content, including structural and functional annotations, as well as annotations from and links to external resources. A variety of custom interactive tools have been developed to enable rapid exploration and drill-down of NAKB’s content.

PMID:37953312 | DOI:10.1093/nar/gkad957

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Assessing the cardiovascular effects of levothyroxine use in an ageing United Kingdom population (ACEL-UK) protocol: a cohort and target trial emulation study

Thyroid Res. 2023 Nov 13;16(1):43. doi: 10.1186/s13044-023-00186-0.

ABSTRACT

BACKGROUND: Subclinical hypothyroidism is diagnosed when serum thyroid stimulating hormone levels are higher whilst free thyroxine levels remain within their respective reference ranges. These reference ranges are uniformly applied in all adults, despite serum thyroid stimulating hormone levels naturally increasing with age. Research has found that mildly elevated thyroid stimulating hormone levels may be associated with some benefits in ageing patients, including reduced mortality and better cardiorespiratory fitness. Levothyroxine is typically prescribed to patients with hypothyroidism, but no conclusive evidence exists on whether levothyroxine therapy is beneficial or detrimental in older subclinical hypothyroid patients. Despite this, prescriptions for levothyroxine are increasing year-on-year. This study aims to determine if receiving levothyroxine affects the cardiovascular and bone health outcomes of subclinical patients in primary care aged 50 years and over.

METHODS: This project includes a retrospective cohort analysis and a target trial emulation study using electronic patient records collected between 2006 and 2021 and recorded in The Health Improvement Network database. The primary outcome of this study is to compare the cardiovascular outcomes of subclinical hypothyroid patients aged over 50 years treated with levothyroxine compared to those untreated. Secondary outcomes are bone health and all-cause mortality outcomes. Descriptive and inferential statistics will both be employed to analyse the data. Secondary analysis will explore confounding factors, including age, sex, smoking status, body mass index, co-morbidities, and levothyroxine dosage.

DISCUSSION: There needs to be a greater understanding of the potential risks of the current treatment for older patients with subclinical hypothyroidism in a primary care setting. We will investigate the clinical importance of this issue and whether older subclinical hypothyroid patients have poorer outcomes when treated. Clarifying this concern may help address the healthcare resource implications of ageing patients being misclassified as having mild hypothyroidism, as these patients are more likely to repeat their blood tests. This could reduce prescription wastage and improve patient outcomes and quality of life in the ageing population.

TRIAL REGISTRATION: Not applicable.

PMID:37953303 | DOI:10.1186/s13044-023-00186-0

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Postpartum and non-postpartum depression: a population-based matched case-control study comparing polygenic risk scores for severe mental disorders

Transl Psychiatry. 2023 Nov 13;13(1):346. doi: 10.1038/s41398-023-02649-2.

ABSTRACT

It remains inconclusive whether postpartum depression (PPD) and depression with onset outside the postpartum period (MDD) are genetically distinct disorders. We aimed to investigate whether polygenic risk scores (PGSs) for major mental disorders differ between PPD cases and MDD cases in a nested case-control study of 50,057 women born from 1981 to 1997 in the iPSYCH2015 sample in Demark. We identified 333 women with first-onset postpartum depression (PPD group), who were matched with 993 women with first-onset depression diagnosed outside of postpartum (MDD group), and 999 female population controls. Data on genetics and depressive disorders were retrieved from neonatal biobanks and the Psychiatric Central Research Register. PGSs were calculated from both individual-level genetic data and meta-analysis summary statistics from the Psychiatric Genomics Consortium. Conditional logistic regression was used to calculate the odds ratio (OR), accounting for the selection-related reproductive behavior. After adjustment for covariates, higher PGSs for severe mental disorders were associated with increased ORs of both PPD and MDD. Compared with MDD cases, MDD PGS and attention-deficit/hyperactivity disorder PGS were marginally but not statistically higher for PPD cases, with the OR of PPD versus MDD being 1.12 (95% CI: 0 .97-1.29) and 1.11 (0.97-1.27) per-standard deviation increase, respectively. The ORs of PPD versus MDD did not statistically differ by PGSs of bipolar disorder, schizophrenia, or autism spectrum disorder. Our findings suggest that relying on PGS data, there was no clear evidence of distinct genetic make-up of women with depression occurring during or outside postpartum, after taking the selection-related reproductive behavior into account.

PMID:37953300 | DOI:10.1038/s41398-023-02649-2

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Cross‑cultural adaptation and validation of the Persian version of the new Knee Society Knee Scoring System (KSS)

J Orthop Surg Res. 2023 Nov 13;18(1):858. doi: 10.1186/s13018-023-04347-7.

ABSTRACT

BACKGROUND: The new Knee Society Knee Scoring System (KSS) has been widely used to assess the symptoms, satisfaction, expectations, and physical activities of patients who undergo total knee arthroplasty (TKA). KSS has been translated and validated into many languages but not Persian. The aim of this study was to translate and evaluate the validity and reliability of the Persian version of the new KSS.

METHODS: The Persian version of the new KSS was translated and culturally adapted according to international guidelines, including translation, back-translation, pre-testing, and expert committee review. A total of 142 patients scheduled to undergo TKA were included in this study and were asked to complete the Persian-KSS, Oxford Knee Score (OKS), and the Visual Analogue Scale (VAS) index both two weeks before the surgery and 6 months after the surgery. Face, content, and construct validity were evaluated to assess the validity of Persian-KSS.

RESULTS: The Persian-KSS was comprehensive, indicating that the Persian version of KSS was clear and easy to understand for Persian-speaking patients undergoing TKA. The reliability of the Persian-KSS, assessed by Cronbach’s alpha, was 0.894 and 0.800 for the pre- and post-operative stages, respectively. The intraclass correlation coefficient (ICC) assessed the test-retest reliability, which was 0.766 and 0.796 for the pre- and post-operative stages, respectively. The construct validity analysis of Persian-KSS demonstrated a statistically significant correlation between Persian-KSS and the OKS (r = – 0.935, p-value = 0.000 for the pre-operative stage, and r = – 0.809, p-value = 0.000 for the post-operative stage) and VAS index (r = – 0.401, p-value = 0.001 for the pre-operative stage and r = – 0.259, p-value = 0.029 for the post-operative stage).

CONCLUSION: The Persian-KSS, developed after the translation and cross-cultural adaptation process, was proven to be a reliable and valid assessment measure for those who undergo TKA.

PMID:37953297 | DOI:10.1186/s13018-023-04347-7

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Nevin Manimala Statistics

Statistical Comparison of Substructures in Pure Aluminum Before and After Creep Deformation, Based on EBSD Image Data

Microsc Microanal. 2023 Nov 10:ozad121. doi: 10.1093/micmic/ozad121. Online ahead of print.

ABSTRACT

Electron backscatter diffraction (EBSD) images of extruded pure aluminum were statistically analyzed to investigate creep-induced subgrain structures after applying two different levels of creep stress, corresponding to the power law (PL) and power-law breakdown (PLB) regimes. Kernel average misorientation analysis of EBSD measurements revealed 2D morphologies, which were subdivided by a multi-step segmentation procedure into subgranular arrangements. Various descriptors were employed to characterize the “subgrains” quantitatively, including their size, shape, spatial arrangement, and crystallographic orientation. In particular, the analysis of the orientations of subgrains was conducted by neglecting rotations around the loading axis. This approach facilitated the individual investigation of the {001} and {111} subgrain families with respect to the loading axis for two investigated stress levels plus a reference specimen. For the PL regime, the statistical analysis of subgrain descriptors computed from segmented image data revealed a similar degree of strain accumulation for {111} and {001} subgrains. In contrast, for the PLB regime, the analyzed descriptors indicate that {111} subgrains tend to accumulate significantly more strain than {001} ones. These observations suggest that the mechanisms leading to PLB may be associated with strain localization dependent on intergranular stress, hindering the recovery process within {111} grains.

PMID:37953284 | DOI:10.1093/micmic/ozad121