Nevin Manimala

Am J Biol Anthropol. 2025 Aug;187(4):e70112. doi: 10.1002/ajpa.70112.

ABSTRACT

OBJECTIVES: In the San Francisco Bay Area, Late Holocene resource intensification models predict an increase in diet breadth and a reduction in foraging efficiency associated with an increase in population, sedentism, and territoriality among fisher-hunter-gatherer populations. Here we compare bone stable carbon (δ¹³C) and nitrogen (δ¹⁵N) isotope values of sites along the eastern bay shore to interpret how ecogeographical partitioning of resources by latitude and distance from the bay reflects differential access and control of resources.

MATERIALS AND METHODS: With the support of, and in collaboration with, the Muwekma Ohlone Tribe of the San Francisco Bay Area, we analyzed bone collagen and bioapatite from 154 burials from Mánni Muwékma Kúksú Hóowok Yatiš Túnnešte-tka (CA-ALA-329) (2500-180 cal B.P.) to examine temporal changes in diet. Further, we examined the ecogeographical partitioning of resources in relation to published data from four contemporaneous sites.

RESULTS: For collagen (n = 146), δ¹³C values average -18.2‰±0.7‰ (1SD) and δ¹⁵N values average 9.8‰±1.5‰ (1SD). For bioapatite (n = 144), δ¹³C values average -13.8‰±1.0‰ (1SD). Adult males had statistically significantly higher isotope values compared to adult females, but differences were minimal (< 1.1‰). No meaningful temporal changes in diet were identified. Regional dietary differences occurred along a latitudinal gradient of the eastern bay shore.

DISCUSSION: Foraging efficiency was localized, suggesting that the exploitation of different microhabitats was critical to each tribal group. Stable isotope data complement zooarchaeological and paleobotanical data; although they reveal different aspects of subsistence practices and diet.

PMID:40832742 | DOI:10.1002/ajpa.70112

BJOG. 2025 Aug 20. doi: 10.1111/1471-0528.18333. Online ahead of print.

ABSTRACT

OBJECTIVE: To compare long-term clinical and cost-effectiveness of pessary self-management (SM) with clinic-based care (CBC) for pelvic floor-specific quality of life (QoL).

DESIGN: Four-year questionnaire follow-up of trial participants.

SETTING: UK pessary clinics.

SAMPLE: Responders at 4 years aged ≥ 18 years at recruitment, using a pessary (except Shelf, Gellhorn or Cube) which had been retained ≥ 2 weeks.

EXCLUSIONS: limited manual dexterity; cognitive deficit; pregnancy; requiring non-English SM teaching.

METHODS: SM group received a 30-min teaching session; information leaflet; 2-week follow-up call; and telephone support. CBC group received routine appointments. Allocation was by remote web-based application, minimised on age, user type (new/existing) and centre with no blinding. Participants were invited to opt into a 4-year follow-up. The primary analysis was intention to treat.

OUTCOME MEASURES: The primary outcomes were pelvic floor-specific QoL (PFIQ-7) and incremental net monetary benefit (INB) 4 years post-randomisation. Secondary outcomes included complications and prolapse symptoms.

RESULTS: Of 340 women randomised, 186 (55%) responded at 4 years (86/169 [51%] SM, 100/171 [58%] CBC). There was no statistically significant group difference in PFIQ-7 at 4 years (mean SM 32.9 vs. CBC 31.4, adjusted mean difference [AMD] SM-CBC 4.86, 95% CI -6.41 to 16.12). There was a statistically non-significant lower percentage of pessary complications for SM (SM 17.7% vs. CBC 22.0%, AMD 3.01 CI -0.58 to 6.61). At 4-years, SM was cost-effective (INB £2240). There was one potentially related serious adverse event (SM group).

CONCLUSIONS: Pessary self-management is an effective and cost-effective long-term option for women with prolapse.

TRIAL REGISTRATION: ISRCTN number: 62510577 (https://doi.org/10.1186/ISRCTN62510577).

PMID:40832737 | DOI:10.1111/1471-0528.18333

Alzheimers Dement. 2025 Aug;21(8):e70428. doi: 10.1002/alz.70428.

ABSTRACT

INTRODUCTION: Many health life exposure factors (LEFs) influence cognitive decline and dementia incidence, but their relative importance to episodic memory (an early indicator of cognitive decline) among diverse older adults is unclear. We used machine learning to rank LEFs for memory performance in a large and diverse US cohort.

METHODS: Kaiser Healthy Aging and Diverse Life Experiences (KHANDLE) and Study of Healthy Aging in African Americans (STAR), participants underwent neuropsychological testing and answered questionnaires about multiple LEFs. XGBoost and Shapley Additive exPlanation values ranked the importance of factors influencing cross-sectional episodic memory in the full sample and by sex and ethnic group.

RESULTS: Among 2245 adults (mean age: 74 years; range 54-90), age, sex, education, volunteering, income, vision, hearing, sleep, and exercise contributed to memory performance regardless of group stratification.

DISCUSSION: This innovative methodology can help identify risk factors important for memory performance and guide future dementia risk reduction interventions among older adults.

HIGHLIGHTS: This work uses a regression tree machine learning model (XGBoost) with highly interpretable Shapley Additive exPlanation values to analyze impacts of 12 life exposure factors plus age, sex and ethnoracial identity on episodic memory outcome. This approach has valuable properties, including the ability to implicitly account for variable interactions, non-linear relations with outcome, and missing values. Age, sex, education, income, volunteering, exercise, hearing and vision, and sleep (quality and duration) have important impacts on memory outcome in a combined model and in stratified models regardless of ethnoracial identity. We also demonstrate individualized models for subgroups of participants, showing how life exposure factors vary in importance between divergent populations and suggesting an approach to personalized interventions. This approach can be valuable for both policy decisions and individualized interventions to support healthy cognitive aging.

PMID:40832727 | DOI:10.1002/alz.70428

J Magn Reson Imaging. 2025 Aug 20. doi: 10.1002/jmri.70080. Online ahead of print.

ABSTRACT

BACKGROUND: Atypical glioblastoma (GBM) (minimal or no necrosis on MRI) and primary central nervous system lymphoma (PCNSL) are difficult to distinguish on MRI; whether tumor habitat can more accurately distinguish atypical GBM from PCNSL remains uncertain.

PURPOSE: To evaluate the diagnostic performance with tumor habitats, apparent diffusion coefficient (ADC), and edema index (EI) to distinguish atypical GBM from PCNSL.

STUDY TYPE: Retrospective.

POPULATION: One hundred twenty-five patients (63 male and 62 female) diagnosed with atypical GBM or PCNSL were included.

FIELD STRENGTH/SEQUENCE: 1.5 T and 3.0 T, Axial ADC and T1 contrast-enhanced spin-echo inversion recovery sequence (T1-CE).

ASSESSMENT: The tumor habitat was derived using T1-CE and ADC sequences. Based on this tumor habitat, EI and relative ADC (rADC), we constructed a model.

STATISTICAL TESTS: Logistic regression; Akaike Information Criterion; Receiver operating characteristic (ROC) curves, calibration curves, and Decision Curve Analysis.

RESULTS: Three tumor habitats were identified: high-enhancement cellular habitat (Habitat 1), low-enhancement cellular habitat (Habitat 2), and nonviable tissue habitat (Habitat 3). The voxel fraction of the three tumor habitats in atypical GBM and PCNSL groups shows statistically significant differences. The EI of patients in the PCNSL group was significantly higher than that of the patients in atypical GBM. A model was established incorporating the parameters Habitat 2, Habitat 3, EI, and rADCmean. The model exhibits excellent discriminative ability in the training set (AUC = 0.851, 95% CI: 0.781-0.921) and validation set (AUC = 0.807, 95% CI: 0.724-0.889). Histopathological evaluation showed that vasculogenic mimicry (VM) levels were significantly higher in the PCNSL group. Multiple linear regression analysis showed a significant correlation between habitat voxel fraction and VM levels.

DATA CONCLUSION: A model built based on tumor habitat, EI, and rADCmean can differentiate atypical GBM from PCNSL preoperatively. The differences in VM levels are one of the pathological mechanisms underlying the variations in tumor habitats between atypical GBM and PCNSL.

TECHNICAL EFFICACY STAGE: 3.

PMID:40832718 | DOI:10.1002/jmri.70080

J Cosmet Dermatol. 2025 Aug;24(8):e70412. doi: 10.1111/jocd.70412.

ABSTRACT

BACKGROUND: Laser resurfacing treatments have revolutionized dermatological procedures by improving skin texture, tone, and quality. Effective periprocedural care remains essential to reduce side effects, support healing, and optimize aesthetic outcomes. Hypochlorous acid (HOCl), a naturally occurring oxidant with anti-inflammatory and antimicrobial properties, has demonstrated efficacy in promoting wound healing and minimizing scarring.

AIM: To evaluate the use of stabilized HOCl mist in the periprocedural care of patients undergoing laser resurfacing.

METHODS: Ten patients underwent treatment with UltraClear, CO2RE, and/or GentleMax Pro laser devices. Stabilized HOCl mist was applied before and after the procedure, with continued application twice daily for 1 week posttreatment. Follow-up assessments at 1-3 weeks and 1-3 months post-procedure included clinical photography, tolerability evaluation, and aesthetic outcome assessment. Outcomes measured included Clinician Erythema Assessment (CEA), 4-point Edema Scale, Investigator Global Assessment of Pigmentation Scale (IPA), and Global Aesthetic Improvement Scale (GAIS). Statistical analysis was performed using the Friedman and Wilcoxon signed-rank tests.

RESULTS: HOCl mist was associated with accelerated recovery, including a noticeable reduction in erythema and pigmentation. Statistically significant improvements were observed in CEA (p = 0.007) and IPA (p = 0.012) scores, indicating reduced clinical severity and pigment alteration. Edema and GAIS scores showed no statistically significant change.

CONCLUSION: Stabilized HOCl mist is well-tolerated and may significantly aid post-procedural recovery by minimizing side effects and reducing discomfort. Results support the potential role of stabilized HOCl mist as a beneficial adjunct in post-laser skincare, contributing to faster healing, reduced inflammation, and enhanced cosmetic results.

PMID:40832716 | DOI:10.1111/jocd.70412

Stroke. 2025 Aug 20. doi: 10.1161/STROKEAHA.124.049955. Online ahead of print.

ABSTRACT

BACKGROUND: This individual participant data meta-analysis aimed to determine whether time to treatment influences the effect of intraarterial thrombolysis (IAT), intravenous thrombolysis, and conservative standard therapy on visual outcomes in nonarteritic central retinal artery occlusion.

METHODS: We searched MEDLINE, CENTRAL, and Embase up to June 2023 for studies reporting treatment modality and peri-treatment best-corrected visual acuity (BCVA) for ≥5 participants, excluding patients with nonsevere vision loss (BCVA <1.0 logarithm of the minimum angle of resolution [logMAR]) or treated after 24 hours of symptom onset. The primary outcome was recovery from severe vision loss (final BCVA <1.0 logMAR). We used mixed-effect models and local polynomial regression to investigate nonlinear relationships between time to treatment and recovery from severe vision loss.

RESULTS: Of 4074 screened studies, individual participant data were sought from 52, with 35 contributing individual participant data for 1038 participants. In total, 783 patients met inclusion criteria (age, 64.8±13.3 years; 35.5% female; baseline BCVA, 2.3±0.5 logMAR). For every hour decrease in time to treatment, thrombolysis was associated with greater improvement in BCVA (intraarterial, 0.02 logMAR [95% CI, 0-0.04]; intravenous, 0.04 logMAR [95% CI, 0.00-0.07]) than conservative standard therapy (0.01 logMAR [95% CI, 0-0.02]). A nonlinear relationship was detected for intraarterial thrombolysis with a changepoint at 8 hours (95% CI, 6.7-9.4). Thrombolysis was associated with increased recovery from severe vision loss compared with conservative standard therapy (intraarterial within 6 hours: odds ratio, 2.72 [95% CI, 1.02-7.28], 27.2% versus 12.0%; intravenous within 4.5 hours: odds ratio, 3.32 [95% CI, 1.24-8.92], 28.8% versus 11.1%). Findings were consistent in subgroup analysis restricted to patients receiving recombinant tissue-type plasminogen activator. Monte-Carlo simulations showed that a randomized controlled trial would require 95 participants per group to achieve 80% power to detect an odds ratio of 3.0 for recovery from severe vision loss.

CONCLUSIONS: Early intervention in nonarteritic central retinal artery occlusion is associated with improvement in visual recovery, with intraarterial thrombolysis and intravenous thrombolysis outperforming nonthrombolytic treatments. These findings warrant confirmation in sufficiently powered randomized controlled trials.

PMID:40832714 | DOI:10.1161/STROKEAHA.124.049955

Stroke. 2025 Aug 20. doi: 10.1161/STROKEAHA.124.050446. Online ahead of print.

ABSTRACT

BACKGROUND: Racial disparities have been reported in stroke care, but understanding if there is regional variability is critical to focusing policies and resources. Here, we sought to study racial and ethnic inequity in the administration of thrombolysis and thrombectomy at the national and state levels.

METHODS: We conducted a retrospective cohort study using Get With The Guidelines-Stroke Program registry data from 2003 to 2022 to evaluate racial disparities in the administration of acute stroke treatments in US patients. We used mixed-effects modeling to analyze national and state-level disparities, adjusting for relevant demographic, clinical, and hospital-level characteristics.

RESULTS: 660 369 patients were eligible for thrombolysis and 105 184 patients for thrombectomy. The mean age was 70.21±14.48 years, and 50.18% were female. The race/ethnic distribution was 69.06% of non-Hispanic White, 16.88% of non-Hispanic Black, 7.02% of Hispanic, 2.84% of Asian, and 4.20% of American Indian/Alaska Native/Hawaiian/Pacific Islander patients. Eligible non-Hispanic Black patients had statistically higher thrombolytic rates compared with non-Hispanic White patients (adjusted odds ratio [aOR], 1.04 [95% CI, 1.03-1.06]), indicating no racial disparities in thrombolytic treatment at the national level. Similarly, equal or higher rates of thrombolytic administration were noted in other race/ethnic groups at the national level (Asian: aOR, 1.12 [95% CI, 1.09-1.16]; Hispanic: aOR, 1.14 [95% CI, 1.12-1.17]; and other: aOR, 1.10 [95% CI, 1.07-1.13]; P<0.0001). However, when non-Hispanic Black patients were compared with non-Hispanic White patients at the individual state level, there were disparities in many of the stroke-belt states. Racial disparities remained significant at the national level between non-Hispanic Black and non-Hispanic White patients and eligible thrombectomy patients after adjusting for patient- and hospital-level covariates (aOR, 0.85 [95% CI, 0.82-0.89]; P<0.0001).

CONCLUSIONS: These data suggest that racial/ethnic disparities in stroke care vary depending on the intervention and geographic location. Equitable utilization of thrombolysis nationally may underscore the benefits of quality improvement initiatives though state-level inequities persist. Endovascular thrombectomy utilization demonstrated race-based disparities in use, and further efforts are needed to ensure equitable care of patients with stroke in the United States.

PMID:40832710 | DOI:10.1161/STROKEAHA.124.050446

Circ Genom Precis Med. 2025 Aug 20:e005336. doi: 10.1161/CIRCGEN.125.005336. Online ahead of print.

NO ABSTRACT

PMID:40832708 | DOI:10.1161/CIRCGEN.125.005336

J Magn Reson Imaging. 2025 Aug 20. doi: 10.1002/jmri.70086. Online ahead of print.

ABSTRACT

BACKGROUND: Myocardial contraction fraction (MCF) is a promising volumetric index of myocardial function.

PURPOSE: To evaluate the association of MRI-derived MCF with demographic characteristics, clinical data, MRI findings, and the history of heart failure in patients with transfusion-dependent thalassemia (TDT).

STUDY TYPE: Retrospective.

SUBJECTS: 1154 TDT patients (52.9% female, 37.46 ± 10.67 years) enrolled in the Extension-Myocardial Iron Overload in Thalassemia project and 167 healthy subjects (54.5% female, 36.33 ± 15.78 years).

FIELD STRENGTH/SEQUENCE: 1.5 T/cine imaging for assessment of left ventricular (LV) function parameters, gradient-echo T2* technique for myocardial iron overload (MIO) assessment, late gadolinium enhancement (LGE) imaging for detection of replacement myocardial fibrosis.

ASSESSMENT: MCF was calculated as LV stroke volume divided by LV myocardial volume.

STATISTICAL TESTS: Independent-samples t-test, Wilcoxon signed-rank test, and chi-squared test for comparison between groups; analysis of covariance; Pearson’s or Spearman’s correlations; univariable and stepwise multivariable linear regression analyses; receiver operating characteristic curve analysis for assessment of diagnostic efficiency and DeLong’s test for area under the curves (AUCs) comparison. Statistical significance was defined as p < 0.05.

RESULTS: Healthy subjects and TDT patients showed comparable MCF values (99.5% ± 15.0% vs. 102.7% ± 29.7%, p = 0.820). In TDT, MCF was significantly lower in males compared to females (98.4% ± 27.1% vs. 106.6% ± 31.3%) and in patients with diabetes (96.8% ± 29.7% vs. 103.7% ± 29.1%). MCF significantly decreased with age (R = -0.066). MCF was significantly correlated with global heart T2* values (R = 0.075), and patients with MIO (T2* < 20 ms) had a significantly lower MCF compared to those without (96.3% ± 22.0% vs. 103.3% ± 30.2%). MCF had a significant inverse correlation with the number of LGE-positive segments (R = -0.314). MCF demonstrated a diagnostic performance comparable to that of global heart T2* values in distinguishing between TDT patients with and without a history of heart failure (AUC 0.63 vs. 0.58, p = 0.401 for the difference). The LV ejection fraction did not significantly differentiate patients based on heart failure history (AUC = 0.55, p = 0.223).

DATA CONCLUSION: In patients with TDT, MCF was significantly correlated with MIO and LGE extent. Additionally, patients with a history of heart failure had significantly impaired MCF.

EVIDENCE LEVEL: 4. TECHNICAL EFFICACY: Stage 2.

PMID:40832696 | DOI:10.1002/jmri.70086

J Cosmet Dermatol. 2025 Aug;24(8):e70407. doi: 10.1111/jocd.70407.

ABSTRACT

BACKGROUND: Although both radiofrequency (RF) and focused ultrasound (FU) are commonly used non-invasive skin-tightening methods, comparative studies between the two methods are lacking.

OBJECTIVE: To study and compare the efficacy and safety of RF and FU in facial rejuvenation.

METHODS: We recruited 36 patients to receive a single treatment: the RF group (n = 21) and the FU group (n = 15). Every participant was evaluated on baseline (T0), 1-month follow-up (T1) and 3-month follow-up (T3). Three blinded dermatologists used the FLR scale, Modified Fitzpatrick Wrinkle Scale (MFWS), and Allergan Skin Roughness Scale to assess facial wrinkles. Safety profiles were recorded, and subjects completed questionnaires to provide subjective evaluations.

RESULTS: Intergroup comparison indicated that the ultrasound group showed superior efficacy over the RF group in the mid-face (Z = 2.915, p = 0.004) and lower face (Z = 2.142, p = 0.046) on T1. Intragroup comparison observed a statistically significant reduction in FLR and MFWS scores with both treatments. Subjective satisfaction aligned with objective results, and no severe adverse reactions were observed.

CONCLUSION: Both RF and FU are effective in facial rejuvenation, though their efficacy differs. They are comparably safe and yield high patient satisfaction.

TRIAL REGISTRATION: ChiCTR number: ChiCTR2500097849.

PMID:40832682 | DOI:10.1111/jocd.70407