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Rectus femoris deformations on M-mode ultrasonography as a reliable indicator of muscle strength in individuals with knee osteoarthritis: A cross-sectional study

J Orthop Sci. 2026 Mar 19:S0949-2658(26)00082-5. doi: 10.1016/j.jos.2026.02.015. Online ahead of print.

ABSTRACT

BACKGROUND: Real-time ultrasound monitoring of muscle architecture changes during dynamic contractions is gaining traction as a practical tool for neuromuscular functional assessment.

PURPOSE: This study aimed to assess the muscle thickness (MT) and deformation velocity of rectus femoris (RF) for predicting muscle strength capacity, evaluating their predictive validity and clinical feasibility.

METHODS: Twenty-three elderly individuals with knee osteoarthritis (KOA) were examined. The thickness of the muscle at rest (MTrest) and at maximal voluntary isometric contraction (MTcontraction), the velocity from rest state to maximum contraction (Velocityactivation) and the velocity from maximal contraction to rest state (Velocityrelaxation) were obtained by M-mode ultrasound. Maximum flexor and extensor strength were measured using an isokinetic dynamometer, the gold-standard assessment tool.

RESULTS: MTrest and MTcontraction were significantly correlated with extension strength, also showed correlations with flexion strength. Velocityactivation correlated significantly with both strength (extension: r = 0.742; flexion: r = 0.707). Velocityactivation, but not MT, remained a statistically significant predictor of both extension and flexion strength in multivariate regression models (extension: adjusted R2 = 0.381; flexion: adjusted R2 = 0.314).

CONCLUSIONS: The deformation of RF, as measured by M-mode ultrasound, provides a visualization method for assessing extension and flexion strength. Velocityactivation showed a significant correlation with both extension and flexion strength. Furthermore, it improved the prediction of thigh muscle strength beyond muscle thickness (MT) alone. Assessing the deformation of RF by M-mode ultrasound may be valuable for detecting alterations in muscle strength and function throughout the disease process in individuals with knee osteoarthritis (KOA).

PMID:41862305 | DOI:10.1016/j.jos.2026.02.015

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Phenome-wide study on alcohol consumption provides genetic evidence for a causal association with multiple diseases and biomarkers

Nutr Metab Cardiovasc Dis. 2026 Feb 10:104624. doi: 10.1016/j.numecd.2026.104624. Online ahead of print.

ABSTRACT

BACKGROUND AND AIM: This study investigates genetic evidence for a causal association between alcohol intake and 1174 diseases, and various biomarkers.

METHODS AND RESULTS: A phenome-wide Mendelian randomization (MR) study was conducted using data from 337,463 UK Biobank participants. Five MR methods and sensitivity analyses tested linear associations, while non-linear MR assessed intake-dependent effects. Alcohol consumption was associated with 22 distinct diseases across ten categories. Beyond the strong association between genetically indexed alcohol intake with ‘alcohol-related disorders’ (OR per log-unit/week: 7.02, 95% CI: 5.26-9.37), MR analyses suggested robust evidence for increased risks of ‘cerebrovascular diseases’ (1.63, 1.20-2.21), ‘essential hypertension’ (1.34, 1.07-1.67), ‘electrolyte imbalance’ (1.82, 1.34-2.48), ‘magnesium metabolism disorder’ (4.39, 2.06-9.39), ‘open wounds of head, neck, and trunk’ (2.15, 1.39-3.33), and ‘symptoms involving nervous and musculoskeletal systems’ (2.16, 1.60-2.91). Suggestive evidence indicated higher risks for 12 diseases, mostly mental and digestive disorders, and lower risks for ‘benign neoplasms of connective and other soft tissue’, ‘urinary calculus’, and migraines. Seven diseases exhibited non-linear yet monotonic trends (all Pnon-linearity ≤ 0.05). Alcohol intake was robustly associated with biomarkers including bilirubin, urine sodium, urea, and blood pressure.

CONCLUSION: This comprehensive analysis supports alcohol’s causal role in multiple diseases and biomarkers, highlighting significant risks with minimal benefits.

PMID:41862300 | DOI:10.1016/j.numecd.2026.104624

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Changes to serum lipids, BMI and body composition in adults with cystic fibrosis on Elexacaftor/Tezacaftor/Ivacaftor (ETI): A scoping review

J Cyst Fibros. 2026 Mar 20:S1569-1993(26)00044-5. doi: 10.1016/j.jcf.2026.02.015. Online ahead of print.

ABSTRACT

Elexacaftor-Tezacaftor-Ivacaftor (ETI) has substantially improved lung function and life expectancy for people with cystic fibrosis (pwCF). Emerging evidence suggests that overweight, obesity and dyslipidaemia are now developing in pwCF prescribed ETI. This scoping review, conducted adhering to PRISMA guidelines, aimed to provide an overview of the research currently available that investigated body mass index (BMI), body composition and serum lipid profiles in adults with CF treated with ETI. Peer-reviewed articles and conference abstracts were identified through database searches and conference proceedings. Studies reporting BMI, body composition (fat mass, fat-free mass) and serum lipid profiles in adults with CF following ETI initiation were included. Data were extracted and synthesised descriptively. Of 126 studies (60 peer-reviewed, 66 conference abstracts), 90% reported increased BMI after ETI initiation, with 61% indicating this was statistically significant. Fat and fat-free mass rose significantly in 5 of 8 and 4 of 7 studies, respectively. In the 18 studies (11 peer-reviewed publications, 7 conference abstracts) reporting serum lipids, significant increases were observed; for total cholesterol (72% of studies), LDL-C (80%), and HDL-C (56%), with increased triglycerides (31%), non-HDL cholesterol and HDL: Total Cholesterol ratio (22% for both) less frequently seen. Current evidence suggests that BMI, weight, and serum lipids increase in adults with CF following ETI initiation, with some studies also reporting increased fat- and fat-free mass. The majority of measurements remain within the recommended range. These findings highlight the importance of ongoing monitoring of nutritional status and cardiometabolic health in this population. Prospective research to better characterise long-term cardiometabolic health in pwCF is required.

PMID:41862297 | DOI:10.1016/j.jcf.2026.02.015

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Analysis of Postoperative Voice Quality in Patients With Laryngopharyngeal Reflux and Vocal Fold Polyps

J Voice. 2026 Mar 19:S0892-1997(26)00096-2. doi: 10.1016/j.jvoice.2026.02.031. Online ahead of print.

ABSTRACT

OBJECTIVE: This study aimed to analyze the voice quality of patients with vocal fold polyps and laryngopharyngeal reflux (LPR) and to explore the effect of LPR on voice quality in these patients.

METHODS: A total of 89 adult patients with vocal fold polyps were retrospectively selected between 1 August 2020 and 30 April 2025 using convenience sampling. The reflux finding score (RFS) and the reflux symptom index (RSI) were assessed after vocal fold polypectomy. Patients with an RFS > 7 and an RSI > 13 or with a previous diagnosis of LPR comprised the reflux group, whereas patients with vocal fold polyps but without evidence of LPR comprised the control group. Both groups underwent voice assessment using the Voice Handicap Index-10 (VHI-10) and fiber optic nasopharyngoscopy to evaluate vocal fold morphology. The Voice-Related Quality of Life (V-RQOL) questionnaire and the grade-roughness-breathiness-asthenia-strain (GRBAS grade) scale were also used. Differences in the above indicators between the two groups were compared.

RESULTS: The mean VHI-10 score (18.59 ± 8.956 vs 13.51 ± 7.354, P = 0.012) and the GRBAS grade (2.28 ± 0.615 vs 1.91 ± 0.626, P = 0.032) in the reflux group were higher than those in the control group, whereas the V-RQOL score (57.98 ± 20.13 vs 74.12 ± 18.69, P = 0.019) in the reflux group was lower than that in the control group; the differences were statistically significant. The incidence of broad-based vocal fold polyps (72.9% vs 20.8%, P = 0.032) and bilateral vocal fold polyps (78.4% vs 45.8%, P = 0.017) in the reflux group was higher than that in the control group, and these differences were statistically significant.

CONCLUSION: Laryngopharyngeal reflux may cause patients with vocal cord polyps to be more prone to sessile vocal cord polyps and bilateral vocal cord polyps, which in turn aggravates the hoarseness of the patient ‘s voice; laryngopharyngeal reflux may also affect the physiological, psychological and quality of life of patients with vocal cord polyps. Anti-reflux therapy is recommended for patients with vocal cord polyps with LPR after surgery.

PMID:41862294 | DOI:10.1016/j.jvoice.2026.02.031

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Improving Screening Rates for Social Determinants of Health in Pediatric Primary Care Practices

Popul Health Manag. 2026 Mar 20:19427891261434673. doi: 10.1177/19427891261434673. Online ahead of print.

ABSTRACT

The COVID-19 pandemic highlighted pediatric health care disparities and disrupted routine care, including social needs assessments. The American Academy of Pediatrics recommends universal screening for Social Determinants of Health (SDOH), yet implementation remains inconsistent in primary care settings. This quality improvement (QI) project aimed to implement a standardized, sustainable SDOH screening and referral process in pediatric primary care, hypothesizing that structured interventions would improve screening rates. This QI initiative was conducted from January to September 2023 across six practices within a large pediatric health system. Eligible patients (ages 0-19) included those attending their first well visit of the calendar year. The SMART aim targeted a 50% increase in SDOH screening compliance, from 28% at baseline to 42% over 9 months. Using the Consolidated Framework for Implementation Research and two Plan-Do-Study-Act cycles, the team addressed key implementation barriers and refined interventions. The primary measure was screening completion rate; the balancing measure was the number of refusals to screen. SDOH screening rates increased from 28% to 55%, with eligible patient volumes ranging from 2400 to 5500. All six practices demonstrated statistically significant improvements (P < 0.001). Positive screens ranged from 3.3% to 8% of patients screened. Screening refusals increased significantly (P < 0.001). Standardized SDOH screening, implemented through structured QI methods and stakeholder engagement, significantly improved screening rates in pediatric primary care. Future studies should assess referral effectiveness, clinical outcomes, cost-effectiveness, and strategies to mitigate patient discomfort and systemic barriers.

PMID:41862289 | DOI:10.1177/19427891261434673

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Developing a Novel Coding System for Retrospective Chart Review of Attention-Deficit/Hyperactivity Disorder, Anxiety, and Medication Adherence in Pediatric Psychiatry

J Child Adolesc Psychopharmacol. 2026 Mar 20:10445463261436795. doi: 10.1177/10445463261436795. Online ahead of print.

ABSTRACT

OBJECTIVES: Pediatric mental health prevalence rates have increased in recent years, while gaps remain in the number of available providers. Ongoing evaluation and understanding of treatment progress and engagement are critical to psychiatric care, and these details are often documented in the electronic health record (EHR). Given the utility of retrospective chart review (RCR) as a tool for psychiatrists, we developed a coding system examining common comorbid conditions (anxiety and attention-deficit/hyperactivity disorder [ADHD]) and adherence and evaluated interrater reliability.

METHODS: We created a coding system with a comprehensive manual and coding instructions that explore both symptom severity domains (anxiety, ADHD, and global) and adherence to medication. Codes were rated using Likert scales, and two independent raters coded all data.

RESULTS: RCR was completed for 142 patients with a total of 1139 visits over 2 years. Weighted linear kappa statistics ranged between 0.77 and 0.95, and weighted quadratic kappa statistics ranged between 0.74 and 0.96, suggesting substantial to almost perfect agreement. Interrater agreement was highest for anxiety severity.

CONCLUSIONS: We created a novel coding system for RCR and found substantial to almost perfect interrater reliability for assessing ADHD severity, anxiety severity, global severity, and medication adherence using psychiatry encounter notes documented in an EHR. Our coding system explores conditions that are often heterogeneous and have waxing and waning presentations, using a continuum that captures the complexity of symptoms. Future directions include utilization of coding systems to explore emotion and behavior change over time to optimize treatment.

PMID:41862288 | DOI:10.1177/10445463261436795

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Interpretation of glycaemic variability in type 2 diabetes mellitus patients on maintenance haemodialysis using continuous glucose monitoring

Nefrologia (Engl Ed). 2026 Mar;46(3):501468. doi: 10.1016/j.nefroe.2026.501468.

ABSTRACT

BACKGROUND: Diabetes mellitus is the leading cause of end-stage renal disease, accounting for approximately 40% of cases. Data on glycaemic metrics in diabetic population on maintenance haemodialysis is sparse. The role of continuous glucose monitoring in this population remains underexplored.

METHODS: This prospective observational study aimed to comprehensively characterize glycaemic variability using continuous glucose monitoring in patients with type 2 diabetes mellitus undergoing maintenance haemodialysis. 25 patients aged between 18 and 70 years with more than 3 months of dialysis vintage were included in the study. After collecting socio-demographic and clinical data, an ambulatory glucose profile sensor was applied to the patient’s upper limb before starting their scheduled dialysis session. Sensors measured the interstitial fluid glucose every 15min, and a total of 96 readings were taken per day, continuously for 14 days (336h).

RESULTS: For statistical analysis, the study population was broadly divided into 2 major groups, one which required insulin for their glycaemic management and the other requiring an oral hypoglycaemic agent, linagliptin. Statistical analysis was performed using SPSS software version 26.0 (IBM Corp., Armonk, NY). In both the groups, glycaemic excursion was observed, with dialysis days having high mean glucose values than non-dialysis days, and the observation was more prominent in the insulin-treated group. The mean glucose levels were lower in the nocturnal period in both the groups. It was noticed that the overall glycaemic variability, glycaemic variability in both dialysis and non-dialysis days were lower in linagliptin-treated group.

CONCLUSION: This study demonstrated significant differences in glycaemic variability based on antidiabetic treatment modality in haemodialysis population. Continuous glucose monitoring is an invaluable tool to study glycaemic metrics and guide therapy in haemodialysis population.

PMID:41862265 | DOI:10.1016/j.nefroe.2026.501468

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Effectiveness of the Systems Analysis and Improvement Approach to optimise outpatient mental, neurological, and substance-use disorder treatment cascades in Mozambique: a cluster-randomised trial

Lancet Psychiatry. 2026 Apr;13(4):316-326. doi: 10.1016/S2215-0366(26)00034-9.

ABSTRACT

BACKGROUND: To our knowledge, there are no evidence-based implementation strategies for care cascade optimisation of mental, neurological, and substance use (MNS) disorder treatment in low-income and middle-income countries. This trial evaluated the effectiveness of the Systems Analysis and Improvement Approach for Mental Health (SAIA-MH) implementation strategy to improve MNS disorder care cascade outcomes in Mozambique.

METHODS: We conducted a 3-year, cluster-randomised trial comparing an 8-month baseline period with a 2-year implementation period. All patients diagnosed with MNS disorders across government facilities in Mozambique were eligible. Eligible facilities were required to be naive to the SAIA-MH implementation strategy; currently providing MNS disorder services including prescribing medication; within a 3-h one-way drive from Chimoio City, Manica or Beira City, Sofala; have at least one psychiatric technician and one psychologist currently practising; and have at least 100 annual outpatient MNS disorder visits during 2020-21. Facilities were allocated to the SAIA-MH intervention or attentional placebo control (1:1) using constrained randomisation. Statistical analysts were masked during initial primary outcome assessment. The SAIA-MH strategy combines external facilitation, clinical consultation, and provider team meetings with system-engineering tools in a continuous quality improvement framework. The primary outcome was a combination of low functional impairment or functional improvement measured using the WHODAS 2.0. Secondary outcomes were medication adherence and appointment attendance. We involved people with related lived experience in all elements of the research and writing process. The study was registered at Clinicaltrials.gov, NCT05103033, and is completed.

FINDINGS: Between Feb 4, 2022, and Oct 14, 2024, 3837 patients with MNS disorders (2153 in the intervention group and 1684 in the control group) attended 33 055 outpatient visits across 16 government facilities in Mozambique (eight intervention; eight attentional placebo control). The mean age was 26·0 years (SD 15·4; range 0-103), 2038 (53·1%) were male and 1800 (46·9%) were female, and 2581 (67·3%) were diagnosed with epilepsy. Ethnicity data were not collected. 966 patients in the intervention group (with 7697 visits) and 785 in the control group (with 3804 visits) who had their first visit during the study period, who completed the WHODAS 2.0 measurement at that visit, and who were aged 15 years or older, were included in the primary analysis of patient-visit-level functional improvement or low functional impairment to allow for examination of change from baseline. The SAIA-MH group showed 46·0 percentage points (95% CI 34·0 to 58·0; p<0·0001) higher functional improvement or low functional impairment, 18·1 percentage points (15·4 to 20·7; p<0·0001) higher medication adherence, and 18·4 percentage points (15·1 to 21·7; p<0·0001) higher appointment attendance than observed in the control group. Among non-adherent patient visits, the intervention group had 11·9 fewer non-adherent days than controls (95% CI -17·6 to -6·2; p<0·0001). WHODAS 2.0 scores decreased by 5·9 points more in the intervention group than the control group (95% CI -6·5 to -5·2; p<0·0001). One adverse event was reported during study implementation in the attentional placebo control group and was determined to be unrelated to study participation.

INTERPRETATION: The SAIA-MH implementation strategy shows evidence of effectiveness in increasing patient functioning, appointment attendance, and medication adherence for patients with MNS disorders treated in outpatient primary care. Our findings warrant further research across implementation contexts to determine how differences in diagnostic and comorbidity case mix might influence the ability of SAIA-MH to reduce gaps in task-shared MNS care.

FUNDING: National Institute of Mental Health TRANSLATION: For the Portuguese translation of the abstract see Supplementary Materials section.

PMID:41862257 | DOI:10.1016/S2215-0366(26)00034-9

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Effectiveness of rosemary extract on the cardiovascular risk of emergency nursing professionals – an intervention study

Rev Esc Enferm USP. 2026 Mar 16;60:e20250167. doi: 10.1590/1980-220X-REEUSP-2025-0167en. eCollection 2026.

ABSTRACT

OBJECTIVE: To analyze the effectiveness of the oral administration of rosemary dry extract capsules (Rosmarinus officinalis L.) (1g/day) on the estimated cardiovascular risk, over ten years, in nursing professionals working in emergency and urgent care services.

METHOD: Quasiexperimental study conducted in Southern Brazil. Participants completed a sociodemographic and clinical questionnaire, had blood collected for glycemic and lipid profile analysis, and took oral capsules containing 500 mg of dry rosemary extract twice a day for 8 weeks; subsequently, a new blood sample was taken. The Framingham Global Risk Score was used to estimate cardiovascular risk. Data analysis used descriptive and inferential statistics; significance level of 5%.

RESULTS: The study included 36 professionals, predominantly obese and those with elevated total cholesterol. When comparing the variables before and after the intervention, differences were found in blood pressure (p = 0.048), in total cholesterol (p < 0.001), and in the Framingham Global Risk Score (p = 0.047).

CONCLUSION: Dry rosemary extract was effective in reducing the estimated cardiovascular risk of nursing professionals. Brazilian Registry of Clinical Trials No. RBR 88hrnnw.

PMID:41861393 | DOI:10.1590/1980-220X-REEUSP-2025-0167en

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ChatGPT versus UpToDate in Preclinical Medical Education: Cross-Sectional Analysis Using Term Frequency-Inverse Document Frequency Cosine Similarity

JMIR Med Educ. 2026 Mar 20;12:e82885. doi: 10.2196/82885.

ABSTRACT

BACKGROUND: Generative artificial intelligence tools such as ChatGPT are increasingly used by medical students for self-directed learning. Although these models demonstrate linguistic fluency, their reliability as supplementary resources for preclinical education remains uncertain. In particular, comparisons with evidence-based references such as UpToDate are lacking.

OBJECTIVE: This study evaluated the similarity between responses generated by ChatGPT (with GPT-4o mini) and those from UpToDate to preclinical medical education questions to assess ChatGPT’s potential as an adjunctive learning tool.

METHODS: We conducted a cross-sectional comparison study using 150 first-order questions derived from a preclinical question bank at a single allopathic institution under the oversight of a medical educator with more than 25 years of teaching experience. Each question was entered into ChatGPT 10 times in separate chat sessions, and responses from UpToDate were retrieved from the most relevant articles. The responses were preprocessed through lemmatization, stop-word removal, punctuation removal, and numeric normalization. Similarity between ChatGPT and UpToDate responses was quantified using term frequency-inverse document frequency (TF-IDF) cosine similarity. To determine whether the observed similarities exceeded chance, ChatGPT outputs were compared with a null distribution generated from randomized text.

RESULTS: ChatGPT responses demonstrated statistically significant similarity to UpToDate in 59.3% (89/150) of questions. Across subject areas, pharmacology showed the highest concordance (mean cosine similarity 0.338, SD 0.134), followed by pathology (mean 0.321, SD 0.142), biochemistry (mean 0.296, SD 0.120), microbiology (mean 0.297, SD 0.108), and immunology (mean 0.275, SD 0.102). All subject-level similarity scores exceeded those generated from randomized text, confirming that the observed overlap was nonrandom.

CONCLUSIONS: ChatGPT with GPT-4o mini exhibited moderate but meaningful alignment with UpToDate across preclinical topics, performing best in fact-based disciplines such as pharmacology. Although it is not a substitute for evidence-based resources, ChatGPT may serve as an accessible adjunctive tool for medical students. Integration into preclinical learning should be coupled with artificial intelligence literacy training to promote responsible use and critical appraisal.

PMID:41861392 | DOI:10.2196/82885