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Nevin Manimala Statistics

Global burden and trends of common head and neck cancers between 1990 and 2021: findings from the Global Burden of Disease Study 2021

BMC Oral Health. 2025 Nov 12;25(1):1773. doi: 10.1186/s12903-025-07140-6.

ABSTRACT

BACKGROUND: The burden of head and neck cancers (HNC) is a significant global health challenge, necessitating a comprehensive analysis of incidence and mortality trends. This study aimed to estimate the lastest disease burden and change trends of HNC in 2021 and examine trends from 1990 to 2021 using the Global Burden of Disease (GBD) Study 2021.

METHODS: We comprehensively focused on all HNC in GBD, including lip and oral cavity cancer (LOC), nasopharynx cancer (NPC), other pharynx cancer (OPC), and larynx cancer (LC), estimating incidence, prevalence, disability-adjusted life years (DALYs), and mortality rates, including age-standardized rates (ASR) and 95% uncertainty intervals (UIs) on global, regional, and national levels.

RESULTS: Our results revealed that, in 2021, there were approximately 0.91 million new cases of HNC globally, representing significant increases from 1990, with specific increases in LOC (142.18%), NPC (55.89%), OPC (163.17%), and LC (60.48%). Additionally, around 0.5 million deaths were attributed to HNC. Notably, age-standardized incidence of nasopharyngeal cancer is increasing from 1990 to 2019, but decreasing from 2019 to 2021. Age-standardized mortality for LOC have declined among men but are rising among women between 1990 and 2021 (male: -6.61%, female: 7.95%). The burden of these HNC predominantly affected middle-aged and older populations. As the socio-demographic index rises, the incidence of LOC and OPC displayed a J-shaped relationship, but nasopharyngeal cancer, revealed a downward trend.

CONCLUSIONS: The global burden of HNC grew steadily from 1990 to 2021, the variation in incidence and mortality rates across regions highlights the need for tailored prevention and treatment strategies to address the changing HNC landscape.

PMID:41225462 | DOI:10.1186/s12903-025-07140-6

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Quantitative real-time PCR detection of Porphyromonas gingivalis and Filifactor alocis in peri-implantitis

J Med Microbiol. 2025 Nov;74(11). doi: 10.1099/jmm.0.002091.

ABSTRACT

Introduction. Peri-implantitis is a prevalent and challenging complication in implant dentistry, primarily induced by biofilm-associated pathogens. Among these, Porphyromonas gingivalis and Filifactor alocis have emerged as key contributors, with evidence suggesting their potential synergistic role in exacerbating peri-implant inflammation and tissue destruction.Hypothesis/Gap Statement. While P. gingivalis is a well-characterized periopathogen, the specific role of F. alocis, alone or in combination with P. gingivalis, in peri-implantitis remains underexplored. This study addresses the gap in quantifying their presence in diseased versus healthy peri-implant sites.Aim. To assess the prevalence and microbial load of P. gingivalis and F. alocis in peri-implantitis and healthy peri-implant sites using quantitative real-time PCR (qPCR) and to investigate their correlation with clinical parameters.Methodology. This cross-sectional study included 110 participants: 52 diagnosed with peri-implantitis and 58 with healthy peri-implant tissues. Clinical examination recorded probing depth (PD), clinical attachment level (CAL) and bleeding on probing (BOP). Submucosal biofilm samples were collected and analysed using species-specific qPCR. Statistical analysis employed the Mann-Whitney U test for intergroup comparisons and Spearman’s rank correlation for associations between microbial levels and clinical indices.Results. Both P. gingivalis and F. alocis were significantly elevated in peri-implantitis sites compared to healthy controls. Mean P. gingivalis levels were 4.80×10⁶ ± 4.78×10⁶ copies µl-1 in peri-implantitis and 2.09×10³ ± 1.26×10³ copies µl-1 in healthy sites (P<0.001). F. alocis levels averaged 4.58×10⁵ ± 3.40×10⁵ copies µl-1 in peri-implantitis and 2.45×10³ ± 1.64×10³ copies µl-1 in healthy sites (P<0.001). P. gingivalis showed strong positive correlations with PD, CAL and BOP, while F. alocis correlated moderately with PD and CAL but not significantly with BOP.Conclusion. The significant elevation of P. gingivalis and F. alocis in peri-implantitis supports their potential synergistic involvement in disease pathogenesis. These findings underscore the need for antimicrobial strategies that target both organisms and disrupt their cooperative biofilm behaviour. Further research should clarify their pathogenic interplay and inform the development of precise therapeutic interventions.

PMID:41222987 | DOI:10.1099/jmm.0.002091

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Nevin Manimala Statistics

A Statistical Approach for Evaluating the Spatial Distribution and Local Atomic Environment of Dopants Using Atom Probe Tomography

Microsc Microanal. 2025 Nov 12;31(6):ozaf114. doi: 10.1093/mam/ozaf114.

ABSTRACT

An approach to characterize dopant spatial inhomogeneity at the nanoscale along with its local chemical environment has been developed using atom probe tomography. We achieve this through the combination of a local composition analysis using the nearest-neighbor atoms combined with a nonparametric Kolmogorov-Smirnov or Anderson-Darling statistical test. Using an in situ highly boron-doped silicon germanium layer we demonstrate that all three elements have an inhomogeneous distribution. Moreover, by subdividing the local dopant composition distribution, a correlation between the boron doping level and variations in the surrounding matrix composition was determined. These atomic-scale measurements provide new experimental insights into the dopant incorporation behavior in technologically relevant semiconductors and its relationship to the epitaxial growth processes.

PMID:41222977 | DOI:10.1093/mam/ozaf114

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Automated Personalized Goal Setting for Individual Exercise Behavior: Protocol for a Web-Based Adaptive Intervention Trial

JMIR Res Protoc. 2025 Nov 12;14:e73766. doi: 10.2196/73766.

ABSTRACT

BACKGROUND: The incidence of chronic diseases associated with physical inactivity is on the rise, being one of the leading risk-increasing factors for early death rates throughout the world. Often, physical activity interventions fail to deliver sustained adherence over time due to limiting tailoring to individual baseline characteristics, leaving out contextual changes over time. One solution for this issue may be the use of adaptive interventions relying on contextual multiarmed bandits, a type of reinforcement learning algorithm, that can use baseline and contextual individual data to personalize aspects of the intervention, such as developing personalized workout plans.

OBJECTIVE: The main objectives of this study are (1) to determine the effectiveness of contextual bandits for automated goal setting in the context of a web-based physical activity intervention, (2) to understand the role of user characteristics impacting ideal workout schedules based on adherence to predetermined goals, and (3) to explore the influence of user autonomy on recommendation effectiveness.

METHODS: We developed a protocol for a web-based adaptive intervention trial to investigate the effectiveness of goal recommendation (task difficulty) based on reinforcement learning. The web application (named Apptivate) creates workout routines with 3 different difficulty levels, changing the total workout duration as well as rest times between exercises. Physical activity professionals validated the routine design, ensuring that workouts match recommended guidelines for healthy adults. An initial pilot was conducted, aiming for 800 university students to test the web application for 1 week, to provide initial data to calibrate the algorithm as well as overall feedback for the web application. For the main study, a total of 500 university students will be recruited to participate for 40 days during early 2026. Participants will be divided into 3 groups: user choice (no recommendation), user choice with automated recommendations (contextual bandits), and automated plans without choice.

RESULTS: The pilot was conducted in September 2025. Data analysis for the pilot is undergoing, and the main study is planned for early 2026. Our main statistical analysis includes a direct comparison (paired tests) between success rates across intervention arms, as well as by difficulty level and individual characteristics.

CONCLUSIONS: Physical activity maintenance is key to achieving long term health goals. Tailored digital interventions are promising strategies for physical activity adherence, but personalization often fails to consider dynamic contextual changes. The proposed protocol for a physical activity intervention using adaptive experimentation can provide robust causal inference on the role of choice versus autonomy when goal difficulty is tailored under an adaptive data-driven approach.

INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): PRR1-10.2196/73766.

PMID:41222972 | DOI:10.2196/73766

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Trastuzumab Deruxtecan for ERBB2-Mutant Metastatic Non-Small Cell Lung Cancer With or Without Brain Metastases: A Secondary Analysis of Randomized Clinical Trials

JAMA Netw Open. 2025 Nov 3;8(11):e2543107. doi: 10.1001/jamanetworkopen.2025.43107.

ABSTRACT

IMPORTANCE: Brain metastases reduce overall survival rates of patients with non-small cell lung cancer (NSCLC); patients with epidermal growth factor receptor 2 (ERBB2 [formerly HER2])-mutant NSCLC are more likely to have baseline brain metastases. Trastuzumab deruxtecan (T-DXd) is an approved ERBB2-directed treatment for previously treated unresectable or metastatic ERBB2-mutant NSCLC.

OBJECTIVE: To assess the clinical effectiveness and safety of T-DXd 5.4 mg/kg and 6.4 mg/kg doses in patients with previously treated ERBB2-mutant metastatic NSCLC with or without untreated or previously treated stable brain metastases.

DESIGN, SETTING, AND PARTICIPANTS: This post hoc secondary analysis pooled patients from the DESTINY-Lung01 (data cutoff date: December 3, 2021) and DESTINY-Lung02 (data cutoff date: December 23, 2022) clinical trials by T-DXd dose (5.4 mg/kg and 6.4 mg/kg). DESTINY-Lung01 was a multicenter, open-label, 2-cohort, nonrandomized phase 2 study, while DESTINY-Lung02 was a dose-blinded, multicenter, 2-cohort, randomized phase 2 study. Participants had a previously treated ERBB2-mutant metastatic NSCLC with or without untreated or previously treated stable brain metastases at baseline. All statistical analyses were performed from April 2023 to October 2024.

INTERVENTION: Patients received a T-DXd dose of either 5.4 mg/kg or 6.4 mg/kg intravenously every 3 weeks.

MAIN OUTCOME AND MEASURE: Systemic and intracranial effectiveness by blinded independent central review using RECIST (Response Evaluation Criteria in Solid Tumors) version 1.1, sites of progression, and safety.

RESULTS: This analysis included 102 patients in the T-DXd 5.4-mg/kg dose group (65 females [64%]; median [range] age, 57.5 [37.0-83.0] years and 59.5 [30.0-79.0] years in patients with and without brain metastases, respectively) and 141 patients in the T-DXd 6.4-mg/kg dose group (94 females [67%]; median [range] age, 62.5 [29.0-88.0] years and 59.0 [27.0-83.0] years in patients with and without brain metastases, respectively). In each group, 31% (32 of 102) and 38% (54 of 141) of patients, respectively, had baseline brain metastases and 53% (17 of 32) and 44% (24 of 54), respectively, received prior brain metastasis treatment. In patients with and without brain metastases, systemic confirmed objective response rates (ORRs) were 47% (15 of 32; 95% CI, 29%-65%) and 50% (35 of 70; 95% CI, 38%-62%), respectively, with the T-DXd 5.4-mg/kg dose, and 50% (27 of 54; 95% CI, 36%-64%) and 59% (51 of 87; 95% CI, 48%-69%) with the T-DXd 6.4-mg/kg dose. Median progression-free survival was 7.1 (95% CI, 5.5-9.7) months in the T-DXd 5.4-mg/kg dose group and 7.1 (95% CI, 4.5-9.6) months in the T-DXd 6.4-mg/kg dose group of patients with baseline brain metastases. Among patients with measurable baseline brain metastases, intracranial confirmed ORRs were 50% (7 of 14; 95% CI, 23%-77%) with the T-DXd 5.4-mg/kg dose and 30% (9 of 30; 95% CI, 15%-49%) with the T-DXd 6.4-mg/kg dose. At both doses, the safety profile of T-DXd was generally manageable, regardless of baseline brain metastases, favoring the T-DXd 5.4 mg/kg dose.

CONCLUSIONS AND RELEVANCE: In this secondary analysis, T-DXd at the approved dose of 5.4 mg/kg showed antitumor activity in patients with previously treated ERBB2-mutant metastatic NSCLC with or without brain metastases. This finding supports T-DXd 5.4 mg/kg use in this population.

PMID:41222935 | DOI:10.1001/jamanetworkopen.2025.43107

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Postpandemic Recovery of Case Mix Index and Risk-Adjusted Mortality in US Hospitals

JAMA Netw Open. 2025 Nov 3;8(11):e2543398. doi: 10.1001/jamanetworkopen.2025.43398.

ABSTRACT

IMPORTANCE: The COVID-19 pandemic disrupted long-standing trends in hospital quality and patient safety, prompting questions about whether risk-adjusted outcomes have resumed their prepandemic trajectories.

OBJECTIVE: To determine whether trends in risk-adjusted mortality and case mix index (CMI) among hospitalized patients in hospitals have returned to prepandemic trajectories.

DESIGN, SETTING, AND PARTICIPANTS: This retrospective cohort study was a multicenter analysis that used the Vizient Clinical Data Base, which contains encounter-level administrative and financial data from more than 1300 hospitals in the US. The study included continuously reporting hospitals and examined inpatient discharges between October 2019 and March 2024. Data were analyzed between January and May 2025.

MAIN OUTCOMES AND MEASURES: Quarterly estimates of CMI and standardized mortality ratio (SMR) (observed-to-expected ratio). Ordinary least squares (OLS) regression was used to evaluate overall linear trends, and joinpoint regression was used to identify inflection points. Statistical significance was defined as P < .05, with slope estimates reported alongside 95% CIs.

RESULTS: Among 715 hospitals and 7 802 606 million inpatient encounters, the mean CMI increased from 1.70 in the fourth quarter (Q4) of 2019 to 1.79 in the first quarter (Q1) of 2024 (difference, 0.09; 95% CI, 0.01 to 0.17; P = .02). In OLS regression, CMI showed no significant overall linear trend (R2 = 0.006; P = .77). The mean SMR decreased from 1.00 in Q4-2019 to 0.80 in Q1-2024 (difference, -0.20; 95% CI, -0.32 to -0.08; P = .001), with a significant linear decline across the study period (R2 = 0.735; P < .001). Joinpoint regression identified a CMI inflection point in Q4-2020 (slope, 1.85; 95% CI, 0.73 to 4.14; P < .001 before; slope, -0.30; 95% CI, -0.62 to -0.09; P = .006 after) and an SMR inflection point in Q3-2021, after which SMR declined significantly by -3.17% per quarter (P < .05).

CONCLUSIONS AND RELEVANCE: In this cohort study of 715 US hospitals from 2019 to 2024, risk-adjusted in-hospital mortality declined significantly following the COVID-19 pandemic, resuming its prepandemic trajectory of improvement, while patient acuity as measured by CMI remained elevated. These findings suggest a new postpandemic baseline for patient acuity, whereas hospital mortality outcomes have returned to prior improvement trends.

PMID:41222931 | DOI:10.1001/jamanetworkopen.2025.43398

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Population Pharmacokinetics of Atogepant for the Prevention of Migraine

Clin Pharmacokinet. 2025 Nov 12. doi: 10.1007/s40262-025-01566-5. Online ahead of print.

ABSTRACT

BACKGROUND AND OBJECTIVE: Atogepant is an oral calcitonin gene-related peptide receptor antagonist developed for the preventive treatment of migraine. This work aimed to develop a population pharmacokinetic (popPK) model to support dosage regimen selection during the clinical development of atogepant in patients with episodic migraine (EM) or chronic migraine (CM) and to guide the dosing recommendations for regulatory approval.

METHODS: Pharmacokinetic data collected from 12 phase 1 studies, 1 phase 2b/3 study, and 1 phase 3 study in healthy participants and patients with EM were used to develop a popPK model that was externally validated with data from a CM phase 3 study and a phase 3 study in patients with EM for whom two to four classes of conventional oral preventive treatments have failed. The model was built and evaluated using nonlinear mixed-effect modeling and diagnostic assessments.

RESULTS: The final model featured three disposition compartments, with linear elimination from the central compartment and a sequential zero-/first-order lagged absorption process. Formulation, dose, food status, liver function, concomitant medication, and body weight were each found to have a statistically significant influence on atogepant’s pharmacokinetics. Absorption was affected by dose and formulation, the apparent central volume of distribution (V1/F) increased with body weight, relative bioavailability (Frel) modestly increased with dose, and a high-fat meal lengthened absorption lag time. Severe hepatic impairment and coadministration of itraconazole, quinidine, or a single rifampin dose decreased apparent clearance (CL/F) by ~37% and ~66%, ~29%, and ~13%, respectively, while coadministration of multiple rifampin doses increased CL/F by 1.82-fold. Frel increased by 1.95 and 2.4 fold with coadministration of itraconazole and a single rifampin dose, respectively, and decreased by ~25% with multiple rifampin doses. Mild/moderate renal impairment, coadministration of breast cancer resistance protein (BCRP) inhibitors, BCRP substrates and statins, age, and sex had no clinically relevant effect on atogepant pharmacokinetics. No statistically significant differences were observed in atogepant’s pharmacokinetics between healthy participants and patients with migraine.

CONCLUSIONS: The pharmacokinetics of atogepant are similar in healthy participants and patients with CM or EM. Dose adjustments owing to intrinsic factors of age, sex, race, and body weight, or owing to concomitant medications consisting of P-glycoprotein (P-gp) inhibitors, BCRP inhibitors, oral contraceptive components (ethinyl estradiol and levonorgestrel), famotidine, esomeprazole, sumatriptan, acetaminophen, and naproxen are not necessary. Atogepant’s popPK model provides a valuable tool for evaluating specific questions for patients, healthcare providers, and regulatory agencies. Integration into other modeling approaches has also aided in model-informed drug development decisions.

CLINICAL TRIAL REGISTRATION: NCT03855137 (EudraCT number: 2018-004337-32).

PMID:41222899 | DOI:10.1007/s40262-025-01566-5

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Development of a Semi-Mechanistic Population Pharmacokinetic Model for Predicting Tenofovir Disoproxil Fumarate and Tenofovir Alafenamide Exposure in Plasma and Cellular Matrices During Pregnancy and Postpartum

Clin Pharmacokinet. 2025 Nov 12. doi: 10.1007/s40262-025-01589-y. Online ahead of print.

ABSTRACT

BACKGROUND AND OBJECTIVE: Tenofovir (TFV)-based regimens are backbones of both HIV treatment and pre-exposure prophylaxis during pregnancy. Multiple studies have shown up to one-third decreases in dried blood spot tenofovir-diphosphate concentrations during pregnancy among participants taking tenofovir disoproxil fumarate (TDF). Currently, there are no mechanism-based models describing the pharmacokinetics of tenofovir diphosphate (the active anabolite) in peripheral blood mononuclear cells (PBMCs) of pregnant individuals receiving TDF or tenofovir alafenamide (TAF), and the mechanisms behind observed differences between dried blood spots and PBMCs remain unclear.

METHODS: To address this gap, we developed a semi-mechanistic model to simultaneously describe the pharmacokinetics of all clinically relevant TDF and TAF-derived moieties and conducted clinical trial simulations to compare TDF and TAF pharmacokinetics during pregnancy and postpartum.

RESULTS: The pharmacokinetics of plasma TAF and TFV were best described by one-compartment and two-compartment models, respectively, with first-order absorption. A transit compartment was included to reflect the slower elimination rate of plasma TFV after receiving TAF. Cellular matrix PBMC and dried blood spots were included using a biophase model. For TDF, plasma TFV apparent clearance increased by 24.9% and 13.1% during the second and third trimesters of pregnancy, respectively, compared with non-pregnant populations. In the postpartum period, plasma TFV apparent clearance in pregnant women was 9.3% lower than in non-pregnant women. The bioavailability for TAF decreased by 17.3% and 5.1% during the second and third trimesters, respectively, and increased by 18% during the postpartum period relative to non-pregnant women. In pregnant women, simulations showed that TAF maintains approximately five times higher tenofovir diphosphate concentrations in PBMCs compared with TDF during the second and third trimesters, despite a decrease in PBMC tenofovir diphosphate concentrations for both drugs. This finding is consistent with the higher PBMC loading effect of TAF observed in non-pregnant populations.

CONCLUSIONS: Our semi-mechanistic model provides a framework for understanding pregnancy-associated pharmacokinetic changes and supports future research to refine dosing strategies for HIV treatment and prevention in pregnancy.

PMID:41222898 | DOI:10.1007/s40262-025-01589-y

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Interactive Pluralism and Religious Tolerance: An Experimental Study of Muslim-Christian Dialogue in Kazakhstan

J Relig Health. 2025 Nov 12. doi: 10.1007/s10943-025-02489-y. Online ahead of print.

ABSTRACT

The aim of the research is to evaluate the possible effectiveness of interactive participation between Muslim and Christian participants. The study employed an experimental design including 120 participants, randomly assigned into two groups: an intervention (experimental) group (n = 60) and a control group (n = 60). The findings indicate a significant increase in tolerance levels among the experimental group, with an average rise of 25 points on a 100-point scale, whereas the control group exhibited minimal change. The between-group difference following the intervention was statistically significant (t = 12.87, p < 0.001). Participants who engaged in interfaith dialogue reported increased empathy, recognition of shared ethical values, and a decline in exclusivist attitudes. These results highlight the potential of structured interfaith engagement as an effective tool for fostering religious tolerance in multicultural societies.

PMID:41222878 | DOI:10.1007/s10943-025-02489-y

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One-Year Efficacy and Tolerance of Myofix Defocus Spectacles for Control of Myopia Progression

Ophthalmol Ther. 2025 Nov 12. doi: 10.1007/s40123-025-01270-4. Online ahead of print.

ABSTRACT

INTRODUCTION: To report the 1-year efficacy of Myofix Defocus spectacles, designed to control the progression of myopia in childhood.

METHODS: A total of 47 children with myopia aged 7-15 years were enrolled. Cycloplegic objective refraction (spherical equivalent refraction, SE) and axial length (AL) were measured at baseline, 6 months, and 12 months. Linear regression models were used to identify risk factors of 12-month changes in SE and AL. For comparison, two virtual control groups of children were included. Tolerance was assessed through a questionnaire at each follow-up visit.

RESULTS: Of the initial cohort, 11 participants were lost to follow-up after 6 months due to reasons unrelated to lens design (77.1% retention rate). Over 12 months, the mean SE change in all eyes was – 0.21 ± 0.30 D, and AL change was 0.19 ± 0.13 mm. Progression was significantly different in participants who reported good compared to poor compliance (p < 0.001). At the 12-month follow-up, participants with good compliance had a mean SE progression of – 0.12 ± 0.25 D and a mean AL change of 0.17 ± 0.11 mm. In virtual controls, the mean annual SE progression was – 0.47 ± 0.36 D, and AL change was 0.26 ± 0.17 mm (both p < 0.001). In compliant participants, Myofix Defocus lens demonstrated a 75% reduction in SE and 37% reduction in AL compared to virtual controls.

CONCLUSIONS: After 1 year, Myofix Defocus spectacles slowed myopia progression in children, demonstrating comparable efficacy to other defocus-incorporated spectacle designs. Greater compliance resulted in better treatment effect. Further long-term studies are warranted to confirm these findings.

TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT07092072. Registered retrospectively on July 29, 2025.

PMID:41222872 | DOI:10.1007/s40123-025-01270-4