bluuebunny/crossref_metadata_2025_split huggingface dataset:
Telomere length as a biomarker in multiple sclerosis
Authors: Piedrabuena Maria Agustina , Correale Jorge , Farez Mauricio Franco , Rodríguez Murúa Sofia , Martínez Canyazo Carlos , Fiol Marcela , Marrodan Mariano , Ysrraelit Maria Celica 
Published: September 2024

Background: Leukocyte telomere length (LTL) shortens with age and may be related to multiple sclerosis (MS). Objective: We hypothesize that chronologically young people with MS (pwMS) with short LTL behave similarly to older MS subjects. Methods: Prospective 2-year study including two cohorts of young (18–35 years) and elderly (⩾50 years) pwMS with similar disease duration. Physical and cognitive evaluation, 3 T brain magnetic resonance imaging (MRI) and retinal nerve fiber layer (RNFL) measurement by optical coherence tomography were performed. LTL was measured by quantitative polymerase chain reaction assay. Results: Around 105 patients were included, 57 young and 48 elderly. LTL was shorter in older patients (0.61 versus 0.57, p = 0.0081) and in males (female, 0.60; male, 0.59; p = 0.01335). For every 10-year increase in age, LTL was 0.02 U shorter. In elderly, LTL correlated with disease duration ( p = 0.05), smoking ( p = 0.03), Expanded Disability Status Scale (EDSS; p = 0.004), 9HPT ( p = 0.00007), high-efficacy therapies ( p = 0.001), brain lesion volume (BLV) ( p = 0.011), and number of T2 lesions ( p = 0.01). In young patients, LTL did not correlate with clinical or radiological variables. For every 0.1 U shorter LTL, gray matter volume decreased 1.75 cm3 and white matter volume 1.78 cm3. Conclusion: LTL correlated with disability and BLV in elderly. Besides LTL shortening, other variables should be considered as mechanisms of neurodegeneration that might be involved in aging pwMS.
Misdiagnosis and underdiagnosis of multiple sclerosis: A systematic review and meta-analysis
Authors: Zürrer Wolfgang Emanuel , Cannon Amelia Elaine , Ilchenko Dariya , Gaitán María Inés , Granberg Tobias , Piehl Fredrik , Solomon Andrew J , Ineichen Benjamin Victor 
Published: September 2024

Background: Diagnostic errors in multiple sclerosis (MS) impact patients and healthcare systems. Objectives: This study aimed to determine the prevalence of MS misdiagnosis and underdiagnosis, time delay in reaching a correct diagnosis and potential impact of sex. Methods: Systematic review and meta-analysis on MS diagnostic errors. Results: Out of 3910 studies, we included 62 for a qualitative synthesis and 24 for meta-analyses. Frequency of misdiagnosis (incorrect assignment of an MS diagnosis) ranged from 5% to 41%, with a pooled proportion based on six studies of 15% (95% CI: 9%–26%, n = 1621). The delay to rectify a misdiagnosis ranged from 0.3 to 15.9 years. Conversely, underdiagnosis (unrecognized diagnosis of MS) ranged from 3% to 58%, with a pooled proportion in four studies of 36% (95% CI: 20%–55%, n = 728). Pooling seven studies comprising 2851 individuals suggested a diagnostic delay to establish a correct MS diagnosis of 17.3 months (95% CI: 11.9–22.7) in patients underdiagnosed. In a meta-analysis of five studies, women were 2.1 times more likely to be misdiagnosed with MS compared to men (odds ratio, 95% CI: 1.53–2.86). Conclusion: This study provides summary-level evidence for the high prevalence of MS misdiagnosis and underdiagnosis. Future studies are needed to understand the causes of these diagnostic challenges in MS care.
Cytomegalovirus immune responses are associated with lower serum NfL and disability accumulation risk at multiple sclerosis onset
Authors: Lünemann Jan D , Sao Avilés Augusto , Tintoré Mar , Midaglia Luciana , Fissolo Nicolás , Gutiérrez Lucía , Wiendl Heinz , Montalban Xavier , Comabella Manuel 
Published: September 2024

Background: Infection by cytomegalovirus (HCMV) and Epstein–Barr virus (EBV) play a prognostic role in multiple sclerosis (MS). Objectives: To explore whether humoral immune responses to HCMV and EBV at disease onset were associated with changes in serum and cerebrospinal fluid (CSF) levels of inflammatory and neurodegeneration biomarkers. Methods: Ninety-eight MS patients with a median follow-up of 20 years were included in the study. The levels of a panel of nine biomarkers were measured in serum ( N = 60) and CSF ( N = 61) samples of patients at the time of the first demyelinating event. Results: Immune responses to HCMV inversely correlated with serum neurofilament light chain (sNfL) levels (rho = −0.367; p = 0.039). sNfL levels were reduced in patients with high immune responses to HCMV ( p = 0.006). Elevated sNfL levels were associated with higher risk of Expanded Disability Status Scale (EDSS) 3.0 ( p = 0.016), 4.0 ( p = 0.009) and 6.0 ( p = 0.003), and with higher risk of developing secondary progressive MS ( p = 0.003) and to receive treatment ( p = 0.032). Serum soluble CD21 levels were increased in patients with high immune responses to EBV nuclear antigen 1 ( p = 0.020). Conclusions: High immune responses to HCMV are associated with limited disease progression and central nervous system (CNS) injury in MS patients. These findings reinforce the protective role of HCMV infection in MS.
The offload study: A prospective observational study of the time to offload a patient from an ambulance or helicopter into an emergency department or percutaneous coronary intervention centre
Authors: Squires Justin , Irwin Richard , Leech Caroline 
Published: September 2024

Introduction Providing an accurate estimated time for patient handover in the emergency department (ED) can be difficult from the scene. The time taken to offload a patient from a conveying ambulance and transfer into the resuscitation room is often not considered within the estimated time of arrival (ETA). The aim of this study was to assess offload times for pre-alerted patients conveyed by a UK Helicopter Emergency Medical Service (HEMS) by air and road ambulance. Methods A prospective observational study was conducted at The Air Ambulance Service (TAAS) from August 2022 to February 2023. Consecutive emergency patients who were pre-alerted to hospital and arrived at an ED or Percutaneous Coronary Intervention (PCI) centre with an escorting air ambulance crew member were included. The offload time (time between hospital arrival and handover of the patient) was measured using a stopwatch. Results Data was available for 228 patients arriving at 18 hospitals and 6 helipads. The median offload time by road ambulance was 2 min 34 s. The range of helicopter offload times was from 4 min 20 s to 21 min 37 s, which mainly depended on the location of the helipad. Conclusion An additional 2–3 min should be added to the ETA by road ambulance. There is large variation in helicopter offload times depending on the helipad location (secondary/offsite helipad taking longer than a primary rooftop helipad or primary same-level helipads). HEMS services should review their own offload times at local sites to be able to provide a more accurate ETA.
Integrating lived experience to develop a tailored sleep intervention for people living with dementia and carepartners
Authors: Brown Aimee D , Dowling Jasmine , Verma Sumedha , Gibson Rosemary , Valenta Tom , Piestch Ann , Cavuoto Marina G , McCurry Susan M , Bei Bei , Woodward Michael , Jackson Melinda L , Varma Prerna 
Published: September 2024

Objectives Sleep disturbances are highly prevalent and have adverse health consequences for both people living with dementia and their carepartners. Despite this, they are under-addressed caregiving settings. This study aimed to explore these sleep disturbances and co-design a multimodal sleep intervention for people living with dementia and their carepartners. Methods We conducted two focus groups and five semi-structured interviews ( n = 4 people living with dementia, n = 6 carepartners). Active involvement of community advisors was sought throughout the design, development, and facilitation phases. Reflexive thematic analysis was used to explore sleep-related experiences and receive feedback to shape intervention development. Findings People living with dementia reported disruptions to sleep and circadian rhythms, including sleep disturbances and confusion between day and night. Multiple sleep challenges were encountered by carepartners including insomnia, hypervigilance, and daytime impairment. The proposed sleep intervention was received positively, with significant insights emphasising the need for a multimodal toolkit approach, adaptation of the intervention across different dementia stages, and a focus on tailoring the program to carepartners. Conclusion Sleep interventions for caregivers and care-recipients should target both sleep and daytime functioning to ensure holistic support. Participants were receptive towards time-friendly, online, multimodal sleep interventions that combine cognitive behaviour therapies, light therapy, mindfulness, and exercise elements.
Contribution of geometrical infill pattern on mechanical behaviour of 3D manufactured polylactic acid specimen: Experimental and numerical analysis
Authors: Rizwee Mumtaz , Kumar Deepak 
Published: September 2024

Additive manufacturing is regarded as a very efficient fabrication technique since it permits the manufacturing of any three-dimensional product. The present work determines the effect of various infill pattern on the mechanical properties in term of tensile strength, yield strength and hardness of poly-lactic acid (PLA) samples fabricated by fused deposition modeling method. The mechanical behaviour of the 3D-printed PLAs investigated using dog-bone specimens with six distinct infill patterns: line, triangle, tri-hexagon, cubic, octet, and gyroid. The mechanical characteristics were evaluated using the uniaxial tensile test and shore D type hardness tester. The strain and deformation criteria were employed to substantiate the ductile and brittle characteristics. The fractural surface morphology analyzed using the field emission scanning electron microscope. Nonlinear Finite Element Analysis (FEA) was employed to simulate the uniaxial tensile test and establish a Yeoh third order hyperelastic material model for the predictions of the stress-strain response. This model is chosen for its precise ability to predict the nonlinear stress-strain responses for significant deformation and is crucial in applications that involve high degrees of flexibility and elasticity, such as in tire modeling, polymer and elastomer analysis, sports equipment designing, 3D printed components etc. Results revealed that the cubic infill had a maximum tensile strength 32.648 ± 1.42 MPa and octet infill had a minimum tensile strength 22.373 ± 0.79 MPa. The majority of experimental data indicated a brittle behaviour for line-infilled, but triangular, trihexagonal, cubic, octet, and gyroid infill patterns demonstrated ductile behaviour. In comparison to other geometrical infills, cubic shown relatively superior mechanical responses. Consequently, the geometrical infill effect plays a significant role in finding the appropriate mechanical property for industrial applications. The developed material model possesses potential utility in non-linear FEA investigations pertaining to 3D printed PLA objects that are predicted to sustain tensile strength.
Less than full-time training, barriers and future needs. A UK-wide online survey of doctors in training
Authors: Preston Hannah , Spencer Emma , Ker Robert , Guckian Jonathan , Giannoudi Marilena 
Published: September 2024

Background: The the current views of less-than full-time (LTFT) training by both LTFT and full-time (FT) doctors in training, with regards to health and well-being, clinical and non-clinical opportunities, in addition to associated future workforce implications and challenges, are uncertain. Methods: We performed a cross-sectional study of UK-based doctors in training via an online questionnaire, designed and piloted by the Royal College of Physicians Edinburgh (RCPE) Trainees and Members Committee. Design was informed by prior investigation into LTFT training undertaken amongst similar populations by RCPE in 2019. The survey was distributed from May to September 2023 via email to trainees across the United Kingdom and was open to all specialties and training grades. The survey focused on lived experience of both LTFT and FT training, as well as perceived challenges for the future workforce. Results: There were 648 responses from doctors in training across the United Kingdom, with an even spread of LTFT and FT trainees. Most responses (53%) were from trainees in medical specialties. Most LTFT trainees plan to train at this pace for more than 5 years. LTFT was commonly linked to improved work–life balance and well-being, with FT training perceived to feature high stress and burnout. Concerns around LTFT relate to administrative errors, reduced training opportunities and colleague prejudice. Trainees are concerned about LTFT leading to rota gaps and incoherent workforce planning around training numbers. Conclusion: With ever-increasing popularity in LTFT training, flexible and robust long-term workforce planning is necessary for the system to adapt to a new normal and improve retention of doctors in training.
Postpartum menstrual equity: Video and audio analysis of vaginal bleeding counseling during postpartum inpatient care at a southeastern US tertiary hospital
Authors: Darivemula Shilpa M , Massengale Kelley EC , Montiel Catalina , Stuebe Alison M , Tully Kristin P 
Published: September 2024

Background: Despite the universal nature of postpartum vaginal bleeding after childbirth and the importance of managing vaginal bleeding in the postpartum period to monitor health status, little is known about the information or products that birthing individuals are provided. Investigating current practices may offer insights to enacting more supportive and equitable postpartum care. Objective: To evaluate the patterns and content of vaginal bleeding counseling provided to birthing parents while on a postnatal inpatient unit. Design: Observational study of inpatient postpartum care. Birthing parents and their companions consented to video and audio recording of themselves, their infants, and healthcare team members during their postnatal unit stay. Methods: Following IRB approval and in coordination with clinicians at a tertiary hospital in the southeastern United States, data were collected with 15 families from August to December 2020. A multidisciplinary team coded video and audio data from each family from 12 h before hospital discharge. This analysis evaluates patterns of vaginal bleeding counseling timing, content, and language concordance and thematic content of this communication. Results: Birthing parent participants were self-identified Hispanic White ( n = 6), non-Hispanic Black ( n = 5), non-Hispanic White ( n = 3), and non-Hispanic multi-race ( n = 1). Six were Spanish-speaking and eight had cesarean section births. The timing, content, and language concordance of vaginal bleeding communication varied, with these topics mainly addressed in the hour preceding discharge. Twelve of the 15 birthing parents had communication on these topics between 2 and 5 times, 2 had one exchange, and 1 had no counseling on postpartum bleeding observed. Four of the six Spanish-speaking birthing parents had counseling on these topics that was not language concordant. Postpartum vaginal bleeding management involved the themes of access to products, patient safety, and meaningful counseling. There was a lack of adequate access, variation in accurate and respectful care, and a busy clinical environment with differences in information provided. Conclusion: Findings suggest that there are opportunities to strengthen clinical practices for more consistent, proactive, and language concordant vaginal bleeding and subsequent menstrual care postpartum. Menstrual equity is an important part of dignified and safe care.
Prevalence of urinary incontinence and knowledge of pelvic floor muscle training among older women in a Nigerian suburban community
Authors: Akobundu Uzoamaka Nwakaego , Onuzulu Mmunachiso Stephanie , Obiekwe Sochima Johnmark , Akosile Christopher Olusanjo , Daniel Jovita Ada , Nwankwo Mmaduabuchukwu Joseph , Ochiabuto Ogochukwu Mary-Theodora 
Published: September 2024

Background: Urinary incontinence (UI) is a highly prevalent condition in women with a profound influence on their well-being and quality of life. Pelvic floor muscle training (PFMT) is a widely accepted conservative management of incontinence. Adequate knowledge of PFMT can enhance the ability of individuals to perform them effectively unsupervised. Objectives: This study aimed to determine the prevalence of UI and knowledge of PFMT among older women in a selected suburban community in Nigeria. Design: A cross-sectional design. Methods: This study consecutively recruited 121 older women (65 years and above) with a mean age of 68.59 ± 4.94 years in Nnewi North LGA Anambra state, Nigeria. The International Consultation on Incontinence Questionnaire Short Form and an adopted pre-tested questionnaire were used to assess the prevalence of UI and knowledge of PFMT. Data was analyzed using Statistical Package of Social Sciences (SPSS) version 26 Descriptive statistics, and the chi-square test was utilized with significance determined at an alpha level of 0.05. Results: The results revealed that 33.88% of the respondents experience UI, and 3.3% of them have heard about PFMT. There was significant association between prevalence of UI and number of pregnancies (χ2 = 11.16, p = 0.03) and children (χ2 = 9.77, p = 0.04). There was no significant association between the prevalence of UI and level of education (χ2 = 4.20, p = 0.12) and knowledge of PFMT (χ2 = 0.48, p = 0.42). There was no significant association between knowledge of PFMT and number of pregnancies (χ2 = 04.25, p = 0.37), and number of children (χ2 = 4.02, p = 0.40). There was a significant association between knowledge of PFMT and level of education among the participants (χ2 = 7.46, p = 0.02). Conclusion: The study showed a significant prevalence of UI and poor knowledge of PFMT in older women. Health professionals should sensitize older women in hospitals and care homes on the benefits of PFMT to improve their knowledge of PFMT.
Increasing providers’ PrEP prescription for Black cisgender women: A qualitative study to improve provider knowledge and competency via PrEP training
Authors: Kasal Nikki , Devlin Samantha , Johnson Amy K , Dawdani Alicia , Enaholo Ososese E , Liegeon Geoffroy , Pyra Maria , Hirschhorn Lisa R , Haider Sadia , Ducheny Kelly , Simon Jodi , Ridgway Jessica P 
Published: September 2024

Background: Awareness and uptake of human immunodeficiency virus (HIV) pre-exposure prophylaxis (PrEP) remains low among Black/African American cisgender women, partly due to low self-reported PrEP knowledge and comfort among primary care providers. Ensuring providers are trained on PrEP is crucial, as increased PrEP knowledge is associated with higher rates of PrEP prescription. Objective: We aimed to develop a PrEP training for providers to improve their self-efficacy in discussing and prescribing PrEP for Black women, with the ultimate goal of increasing PrEP awareness and utilization among Black women. Design: In this qualitative study, we conducted focus groups with medical providers at three federally qualified health centers in the Southern and Midwestern United States to identify themes informing the development of a provider PrEP training. Methods: Providers were asked for input on content/design of PrEP training. Transcripts underwent rapid qualitative analysis using the Stanford Lightning Report Method. Themes were identified and presented under the domains of the Consolidated Framework for Implementation Research. Results: Ten providers completed four focus groups. Themes included the individual characteristics of providers (low comfort initiating PrEP discussions, particularly among White providers) and the outer setting of client attitudes (perceptions of potential provider bias/racism, varying levels of concern about HIV acquisition). Opportunities were identified to maximize the benefit of training design (e.g., developing case scenarios to enhance providers’ cultural competency with Black women and PrEP knowledge). Conclusion: This comprehensive PrEP training features both didactic material and interactive role-plays to equip providers with the clinical knowledge for prescribing PrEP while building their competency discussing PrEP with Black women. This training is particularly important for providers who have racial or gender discordance with Black women and express lower comfort discussing PrEP with these clients. Provider training could lead to minimizing racial- and gender-based inequities in PrEP use.
Inetetamab-based therapy in real-world treatment patterns with HER2-positive advanced breast cancer patients: a retrospective single-center study
Authors: Jiang Mingxia , Liu Jiaxuan , He Maiyue , Zhang Mengqi , Zhou Shihan , Chen Shanshan , Cai Ruigang , Mo Hongnan , Lan Bo , Zhang Pin , Xu Binghe , Li Qiao 
Published: September 2024

Background: Inetetamab is a novel antibody targeting human epidermal growth factor receptor 2 (HER2) developed in China. Due to its optimized antibody-dependent cell-mediated cytotoxicity effect compared with trastuzumab, it has shown good efficacy and safety in the treatment of HER2-positive advanced breast cancer (ABC). Objectives: This study aimed to investigate the efficacy and safety of inetetamab combination therapy in the treatment of HER2-positive ABC in real-world clinical practice. Design: Retrospective study. Methods: A total of 133 patients with HER2-positive ABC who were treated with inetetamab-based regimens between March 2020 and January 2024 were retrospectively included in this study. The main endpoint was median progression-free survival (mPFS). The secondary endpoints included objective response rate (ORR), disease control rate (DCR), and safety. Results: The study included 133 HER2-positive ABC patients, and the median age was 55 years. The mPFS was 8.0 (6.7–9.3) months. The ORR was 50.4%, while the DCR was 88.7%. The mPFS for patients receiving inetetamab-based therapy as first to second, third to fourth, and later lines of metastatic treatment were 14.0, 7.0, and 6.0 months, respectively. Patients treated with inetetamab plus pyrotinib plus chemotherapy, especially with capecitabine, had the best outcomes (mPFS = 14.0 months). Multivariate analysis revealed that prior HER2-TKI treatment was significantly associated with worse PFS (hazard ratios 2.829, 95% confidence interval 1.265–6.328, p = 0.011). Subgroup analysis indicated that patients without visceral metastases had significantly better PFS (14.0 months vs 8.0 months, p = 0.003). The overall incidence of any grade adverse events (AEs) was 100%, with most being grades 1–2. Severe complications included neutropenia (37.6%) and leukopenia (33.1%). Conclusions: Inetetamab-based combination therapy shows promising efficacy and good safety in patients with HER2-positive ABC. It is one of the late-line treatment options for Chinese patients with HER2-positive ABC.