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Heliyon

Elsevier BV

Preprints posted in the last 30 days, ranked by how well they match Heliyon's content profile, based on 146 papers previously published here. The average preprint has a 0.19% match score for this journal, so anything above that is already an above-average fit.

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Real world data on Solitary Plasmacytoma from eastern India- highlighting favorable trends in outcome

Podder, D.; Sonowal, H.; Saha, S.; Shah, B.; Ghosh, S.; Kumar, J.; Nag, A.; Chattyopadhyay, D.; Javed, R.; Rath, A.; Chakraborty, S.; Parihar, M.; Zameer, L.; Achari, R. B.; Nair, R.

2026-04-17 hematology 10.64898/2026.04.15.26350956 medRxiv
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Introduction: Solitary plasmacytomas (SP) are rare neoplasm of localised proliferation of clonal plasma cells. It can be classified based on site of involvement and bone marrow involvement. It is an indolent disease in the majority of patients. Primary modality of treatment is radiotherapy and surgical excision. Materials and methods: This was a retrospective audit of SP who were treated and followed up at a tertiary care center in eastern India from January 2012 to December 2025. Patients who has solitary plasma cytoma with more than 10% plasma cells, POEMS syndrome, have been excluded from analysis. Results: We identified 46 patients of SP. The median age of the studied population was 53 years (23-75 years). Males were more commonly affected than females (M:F=2.2:1). Most common chief complaints were bony pain (67.4%). SBP was seen in 39 (84.8%) cases whereas SEP was seen in 7 (15.2%) cases. Vertebra was the most common site of involvement (61.4%). Median M band concentration 0.24 g/dL (0.1 to 1.95 gm/dL). IgG was the most common isotype accounting for 60.6% cases. Six cases (13%) had minimal bone marrow involvement. The majority of the patients received local radiotherapy (89.1%). With a median follow up of 5.4 years (95% CI: 1.8 - 9.0), median OS was not reached, median PFS was 9.22 years (95% CI: 5.8-12.6), median time to next treatment (TTNT) was 9.86 years (95% CI: 6.8 - 12.9). Conclusion: Solitary plasmacytoma commonly affects young males. Bones are more commonly affected than extramedullary sites. SP has a lower rate of progression and excellent prognosis when treated with local radiotherapy.

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Predicting Traffic Accident Injury Severity Using Ensemble Machine Learning Models: Incident Level and Generalized Insights via Explainable AI

Zhang, E. R.; Mermer, O.; Demir, I.

2026-04-20 occupational and environmental health 10.64898/2026.04.13.26350778 medRxiv
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Road traffic accidents represent a global public safety crisis, necessitating advanced computational tools for accurate injury severity prediction and effective decision support. This study evaluates high-performing ensemble machine learning models, including AdaBoost, XGBoost, LightGBM, HistGBRT, CatBoost, Gradient Boosting, NGBoost, and Random Forest, using a comprehensive National Highway Traffic Safety Administration (NHTSA) dataset from 2018 to 2022. While all models demonstrated exceptional predictive accuracy, with HistGBRT achieving the highest overall accuracy of 92.26%, a defining achievement of this work is the perfect classification (100% precision and recall) of fatal injuries across all ensemble architectures. To bridge the gap between predictive performance and actionable intelligence, this research integrates SHapley Additive exPlanations (SHAP) to provide both global insights into dataset-wide risk factors and local, instance-specific rationales for individual crash events. The global analysis identified ethnicity, airbag deployment, and harmful event type as primary drivers of injury severity, while local force and waterfall plots revealed the precise "push and pull" of variables for specific incidents. The results offer a robust, interpretable framework for stakeholders tasked with improving traffic safety and mitigating crash-related harm.

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A Comparative Study in Surgical AI: Datasets, Foundation Models, and Barriers to Med-AGI

Skobelev, K.; Fithian, E.; Baranovski, Y.; Cook, J.; Angara, S.; Otto, S.; Yi, Z.-F.; Zhu, J.; Donoho, D. A.; Han, X. Y.; Mainkar, N.; Masson-Forsythe, M.

2026-03-28 surgery 10.64898/2026.03.26.26349455 medRxiv
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Recent Artificial Intelligence (AI) models have matched or exceeded human experts in several benchmarks of biomedical task performance, but have lagged behind on surgical image-analysis benchmarks. Since surgery requires integrating disparate tasks --- including multimodal data integration, human interaction, and physical effects --- generally-capable AI models could be particularly attractive as a collaborative tool if performance could be improved. On the one hand, the canonical approach of scaling architecture size and training data is attractive, especially since there are millions of hours of surgical video data generated per year. On the other hand, preparing surgical data for AI training requires significantly higher levels of professional expertise, and training on that data requires expensive computational resources. These trade-offs paint an uncertain picture of whether and to-what-extent modern AI could aid surgical practice. In this paper, we explore this question through a case study of surgical tool detection using state-of-the-art AI methods available in 2026. We demonstrate that even with multi-billion parameter models and extensive training, current Vision Language Models fall short in the seemingly simple task of tool detection in neurosurgery. Additionally, we show scaling experiments indicating that increasing model size and training time only leads to diminishing improvements in relevant performance metrics. Thus, our experiments suggest that current models could still face significant obstacles in surgical use cases. Moreover, some obstacles cannot be simply ``scaled away'' with additional compute and persist across diverse model architectures, raising the question of whether data and label availability are the only limiting factors. We discuss the main contributors to these constraints and advance potential solutions.

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Statistical invisibility of working equids in Mexico: Dissecting the gap between global diagnostics and official data (1970-2022).

Garcia-Seco, E.; Diaz, M. A.; Tadich Gallo, T.; Toribio, R. E.; Galindo Maldonado, F.; Hernandez-Gil, M.

2026-04-17 scientific communication and education 10.64898/2026.04.15.718791 medRxiv
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BackgroundWorking equids are fundamental to the socioeconomic structure of Mexicos small-scale agricultural sector, which accounts for 71.2% of the countrys active Agricultural Production Units (APUs). Despite their critical role in human rural livelihoods, food security, and sustainable development, these animals face systemic "statistical invisibility" within national and international productive frameworks. This study evaluates the long-term population dynamics and geographical distribution of working equids to analyze their current status amidst agricultural modernization. MethodsA retrospective analysis was conducted using national census data from 1970 to 2022 provided by the National Institute of Statistics, Geography, and Informatics (INEGI). Population trends for horses, donkeys, and mules were calculated using the Average Annual Variation Rate (AAVR). The severity of population declines was classified according to an adaptation of the International Union for Conservation of Nature (IUCN) criteria. Finally, national census records from INEGI, Agri-food and Fisheries Information Service (SIAP) and The Ministry of Agriculture and Rural Development (SADER) were contrasted with FAOSTAT database estimates to identify reporting discrepancies. ResultsBetween 1970 and 2022, the total equine population in Mexico decreased by 76.5%, falling from 6.8 to 1.6 million. However, a "paradox of modernization" was identified: while total numbers plummeted, the proportion of equids used specifically for work reached a historical peak of 81% in 2022, effectively having doubled from the 44% recorded in 2007. While donkeys and mules have suffered drastic total reductions (87% and 88%, respectively), working horses experienced a resilient 37% recovery between 2007 and 2022 (+3.71% AAVR). Furthermore, a staggering 710.8% discrepancy was found between national census data and FAOSTAT estimates, representing an overestimation of 11.3 million animals in international records. ConclusionsThe persistence and recent recovery of working equids reflect a "resilience of necessity" for approximately 500,000 APUs that depend exclusively on animal traction and packing due to economic constraints and complex topography. These findings challenge the narrative of total agricultural mechanization and highlight an urgent need for evidence-based public policies that address the statistical invisibility of working equids as indispensable drivers of rural sustainability and food security.

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How can AI be compatible with evidence-based medicine?: with an example of analysis of lung cancer recurrence

Usuzaki, T.; Matsunbo, E.; Inamori, R.

2026-04-25 radiology and imaging 10.64898/2026.04.17.26351114 medRxiv
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Despite the remarkable progress of artificial intelligence represented by large language models, how AI technologies can contribute to the construction of evidence in evidence-based medicine (EBM) remains an overlooked issue. Now, we need an AI that can be compatible with EBM. In the present paper, we aim to propose an example analysis that may contribute to this approach using variable Vision Transformer.

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A low concentration of a sustainably obtained blueberry extract improves the post-thawing motility of cryopreserved bull spermatozoa

Garcia-Blanco, G.; Fra-Hernandez, C.; do-Vale-Rabaca, J. F.; Pariente-Martin, L.; Veza-Cuenca, M.; Fernandez-Alegre, E.; Martin-Fernandez, B.; Caamano, J. N.; Gonzalez-Montana, J. R.; Lores, M.; Martinez-Pastor, F.

2026-04-01 cell biology 10.64898/2026.03.31.715696 medRxiv
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Natural extracts could improve sperm storage and artificial insemination (AI). This study, for the first time, evaluates the suitability of a blueberry extract (Vaccinium corymbosum) obtained from pomace using a sustainable methodology as a supplement for bull semen extenders. Cryopreserved semen doses from eight bulls were combined in 9 pools (3 bulls/pool), supplemented with 0%, 1%, 5%, or 10% extract, and incubated up to 5 h at 38 {degrees}C. Motility was assessed hourly using OpenCASA, and the effects of treatment and time were evaluated using linear mixed-effects models. Motility was significantly better preserved with 1% extract (total and progressive motility, improved linear velocity and linearities, and decreased BCF and fractal dimension, related to hyperactivation). The effect of 5% was overall positive, but it was below 1%, whereas 10% mostly showed a negative effect. These results show that this natural extract could safely supplement bull semen extenders at least between 1% to 5%, and even help improve sperm motility. Therefore, this extract offers an opportunity to enhance cattle semen extenders using a sustainable approach, potentially improving reproductive outcomes.

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A Survey on the Willingness and Demand for Acupuncture Treatment Among Patients with Malignant Tumors

Liu, Q.; Wang, y.; Wang, Y.; luo, S.; Meng, b.; Feng, Y.; Long, z.; Li, Z.; Xue, D.; Sun, H.

2026-03-31 rehabilitation medicine and physical therapy 10.64898/2026.03.24.26349235 medRxiv
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Objective: A questionnaire survey was conducted on the willingness and demand for acupuncture treatment in patients with malignant tumors, and the possible factors affecting patients' willingness and demand for acupuncture treatment were explored. Methods: A voluntary, anonymous survey was conducted between February and May 2025 among patients with malignant tumors aged 18 years and older who visited Beijing Cancer Hospital. The questionnaire included 16 questions addressing three dimensions:current medical purposes,Traditional Chinese Medicine(TCM) literacy, and acupuncture treatment needs.The questionnaire was posted online and completed by respondents using a smartphone interface. Results: A total of 511 valid questionnaires were retrieved in the survey, and 481 patients(94.1%) are willing to receive acupuncture treatment. Among the 481 patients willing to receive acupuncture treatment, the top five symptoms they hoped to improve with acupuncture were: disturbed sleep (245 participants, 50.9%); pain (229 participants, 47.6%); fatigue (177 participants, 36.8%); numbness (165 participants, 34.3%); and poor appetite (144 participants, 29.9%). Among patients who chose to "explicitly accept" acupuncture treatment and those who "accepted acupuncture treatment upon doctor's recommendation", 55% and 56% respectively had good knowledge of traditional Chinese medicine (TCM) culture. In contrast, this proportion was only 36.7% among patients who refused acupuncture treatment, and the difference was statistically significant (P<0.05). The survey results also show that Female patients reported significantly higher demands for pain relief and improved sleep than male patients, with statistically significant differences (P<0.05). Furthermore, those aged 18-45 and with better TCM literacy were more likely to desire acupuncture to improve sleep, with statistically significant differences (P<0.05). Conclusion: Differences in TCM literacy can influence patients' willingness to choose acupuncture treatment. Strengthening patient health education and improving TCM literacy will help increase cancer patients' willingness to choose TCM acupuncture treatment, thereby enabling them to benefit from acupuncture. For patients aged 18-45, those with good TCM literacy female with high acupuncture needs, acupuncture treatment may be recommended as a priority.

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GPR143, a novel immunohistochemical marker for renal tumors with FLCN/TSC/MTOR-TFE alterations

Li, Q.; Singh, A.; Hu, R.; Huang, W.; Shapiro, D. D.; Abel, E. J.; Zong, Y.

2026-04-13 pathology 10.64898/2026.04.06.26350070 medRxiv
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Although several ancillary tests are available in limited laboratories, diagnosis of microphthalmia (MiT)/TFE family translocation renal cell carcinoma (tRCC) could be challenging due to diverse and overlapping tumor morphology and the lack of reliable biomarkers. GPNMB has been recently identified as a diagnostic marker for various renal neoplasms with FLCN/TSC/mTOR-TFE alterations. However, the sensitivity and specificity of GPNMB immunostain are suboptimal and the result interpretation in ambiguous cases could be difficult. To search additional biomarkers that could improve the screening sensitivity and predict genetic aberrations in FLCN/TSC/mTOR-TFE pathway in renal tumors, we performed bioinformatic analysis of publicly available cancer databases and found GPR143, a transmembrane protein regulated by MiT transcription factors, was highly expressed in a subset of renal cell carcinomas (RCCs). In two the Cancer Genome Atlas (TCGA) kidney cancer cohorts, RCCs with high levels of GPR143 expression were enriched for renal neoplasms with FLCN/TSC/mTOR-TFE alterations. Similar to GPNMB labeling, GPR143 immunostain was positive in the majority of tRCC cases and renal tumors with FLCN/TSC/mTOR alterations, suggesting that GPR143 could function as another surrogate marker for FLCN/TSC/mTOR-TFE alterations in certain renal tumors. Interestingly, despite the concordant GPR143 and GPNMB immunoreactivity in most renal neoplasms with FLCN/TSC/mTOR-TFE alterations, diffuse GPR143 immunostain was observed in some cases with negative or focal GPNMB labeling. Taken together, our results indicate GPR143 could serve as a useful adjunct marker to improve the sensitivity for screening renal tumors with FLCN/TSC/mTOR-TFE alterations.

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Exploring Undergraduates' Knowledge, Attitude, and Perception of Infertility in Osun State University: A mixed method study

Adeyemo, S. C.; Awodele, K.; Waliu, A. T.; Fasanu, A. O.; Akinbowale, B. T.; Adeniyi, V. A.; Folami, R.; Akinwale, O. D.; Falade, J.; Olabode, E. D.

2026-04-01 obstetrics and gynecology 10.64898/2026.03.30.26349746 medRxiv
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Background Conventionally, infertility has been regarded as primarily a female issue, leading to misconceptions, stigma, and underrepresentation of male infertility in healthcare discussions. This study assessed the knowledge, attitude and perception of Undergraduates towards male infertility in Osun State University. Methods A descriptive cross-sectional design was employed to select 300 undergraduates via multistage sampling. Qualitative data were collected using a focus group discussion guide covering the knowledge, attitude and perception, while quantitative data were collected using a self-administered questionnaire covering socio-demographic characteristics, knowledge, attitude and perception towards male infertility. Qualitative analysis was performed using NVivo software, while IBM SPSS Statistics version 27 was used for the quantitative analysis, with thematic analysis and chi-square tests to determine the association between variables (significance at p < 0.05). Results Respondents were predominantly females (64.0%) with a mean age of 20.99 {+/-} 2.31 years. Overall knowledge was low (47.7%), while more than half had a negative attitude (52.3%). Significant predictors of attitude include faculty (0.049), level (p=0.031), and formal education on male infertility (p=0.007). Conclusion Students demonstrated a poor understanding of male infertility, and their attitudes remain influenced by cultural norms surrounding marriage, masculinity, and gender roles. Hence, the need to foster open dialogues, promote gender-inclusive narratives, and strengthen healthcare support systems.

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Clinico-pathologic characteristics, patterns of treatment and outcome of newly diagnosed Waldenstroms Macroglobulinemia- a single center real world retrospective analysis

Gupta, V.; Podder, D.; Saha, S.; Shah, B.; Ghosh, S.; Kumar, J.; Jacoby, A. P.; Nag, A.; Chattopadhyay, D.; Javed, R.; Rath, A.; Chakraborty, S.; Demde, R.; Vinarkar, S.; Parihar, M.; Zameer, L.; Mishra, D.; Chandy, M.; Nair, R.

2026-04-14 hematology 10.64898/2026.04.10.26350611 medRxiv
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Waldenstrom macroglobulinemia (WM) is a rare indolent neoplasm characterized by presence of more than 10% lymphoid cells in BM that exhibit plasmacytoid or plasma cell differentiation that secretes an IgM monoclonal protein. This is a retrospective analysis of 89 patients of WM that describes the clinical and laboratory characteristics, treatment patterns and outcome of patients of WM. The median age of the entire cophort was 66 years with male predominance (67.4%). Most common presentations were symptoms pertaining to anemia (77.5%) and constitutional symptoms (33.7%). Median bone marrow lymphoplasmacytic cells were 41%. Positivity for MYD88 and CXCR4 mutations were seen in 81.8% and 2.4% cases. BR was the most common regimen used (52.8%). Overall response rates were seen at 87.8%. Median overall survival, progression free survival and time to next treatment is 8.49 years, 2.15 years and 3.88 years. BR regimen was associated with highest event free survival.

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A Tale of Two Countries: Comparison of Rectal Cancer Characteristics Between Pakistani Americans and Native Pakistanis

Sherwani, M.; Azhar, M. K.; Khan, S.; Ali, D.; Husain, S.; Khan, A.

2026-04-11 surgery 10.64898/2026.04.07.26350364 medRxiv
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IntroductionComparison of rectal cancer characteristics in Pakistani Americans and native Pakistanis remains poorly investigated, as migrant studies have predominantly concentrated on East and Southeast Asian groups. This research aims to compare clinicopathological characteristics between the two groups. We hypothesize that significant differences will exist between these cohorts, mediated by gene-environment interactions. MethodsThis was a retrospective cohort study utilizing two multi-institutional databases to identify adult patients with rectal cancer: the National Cancer Database in the U.S (2018-2022) and the Rectal Cancer Surgery and Epidemiology Study in Pakistan (2020-2021). Non-Hispanic Whites (NHWs) were included as a reference population for comparative analysis. Clinicopathological characteristics were compared using Wilcoxon rank-sum and chi-square tests. ResultsA total of 523 Pakistani Americans and 608 native Pakistanis were included in the study. The median age at diagnosis was 57 years in Pakistani Americans (IQR 48-68), 42 years (IQR 33-54) in native Pakistanis and 63 years in NHWs (IQR 54-73) (p < 0.001). Native Pakistanis presented with early-stage disease less often than Pakistani Americans and NHWs (5.3%, 25.1%, and 20.5%, respectively; p < 0.001) and had markedly higher rates of signet cell carcinoma (20.1%, 0.6%, and 0.4%, respectively; p < 0.001) and poorly differentiated tumors (29.0%, 10.4%, and 11.4%, respectively; p < 0.001). ConclusionsThis study found that Native Pakistanis with rectal cancer presented at a younger age and with more aggressive tumor characteristics compared to both Pakistani Americans and NHWs. Notably, Pakistani Americans displayed a distinct clinical profile, intermediate between both groups.

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Proteome-wide multi-omics profiling of osteosarcoma transcription factor networks

Thang, N. X.; Martiensen, E. L. B.; Abdelhalim, M.; Tran, T. T.; Ledsaak, M.; Rogne, M.; Thiede, B.; Eskeland, R.

2026-03-31 biochemistry 10.64898/2026.03.29.714917 medRxiv
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Osteosarcoma (OS) is an aggressive bone cancer that most commonly affects children and young adults. OS exhibits a high degree of genomic complexity, as well as cellular plasticity, and dynamic transcriptional regulation is suggested to contribute to treatment resistance and metastasis. Cell lines are well characterized as models to advance our knowledge on OS biology. HOS and U2OS cells have increased invasiveness and higher migratory ability compared with MG63. In this study, we employed a tandem array of consensus transcription factor response elements (catTFREs) proteomic approach to characterize transcription factor (TF) regulatory networks related to OS aggressiveness. We mapped 7,594 proteins and enriched 352 transcription factors and coregulators. When we integrated proteomics with cell line specific gene expression and chromatin accessibility we classified the proteins into different OS cell line dependent sub-clusters and identified TFs and coregulators common for all cell lines and specific for individual cell lines. We demonstrate that RUNX2, MYBL2 and HMGA2 are specifically enriched in HOS and U2OS and may be linked to the cell aggressiveness. ETV5, JUNB, NFIX and ZEB1 were among TFs specific to MG63. Our analysis provides a more comprehensive understanding of the transcriptional drivers that shape OS regulatory landscapes and may have future therapeutic implications.

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Clinical Application of CT-Guided Lung Nodule Localization Needles in Preoperative Localization of Small Pulmonary Nodules

Xu, R.; Dou, H.; Zhang, M.; Liu, Z.

2026-04-16 surgery 10.64898/2026.04.13.26350830 medRxiv
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Background: To investigate the safety and efficacy of CTguided lung nodule localization needles for the preoperative localization of small pulmonary nodules. Methods: A retrospective study was conducted on 102 patients with a total of 113 small pulmonary nodules who underwent preoperative localization at Jinan Fourth People's Hospital from January 2024 to December 2025. Nodule diameter and depth, localization time, the number of pleural punctures, the localization success rate, and postoperative complications (hook dislodgement, hemorrhage, and pneumothorax) were recorded. All patients underwent video assisted thoracoscopic surgery (VATS) after localization. Results: The mean nodule diameter was 0.97{+/-}0.36 cm, the mean depth was 1.26{+/-}0.48 cm, and the mean localization time was 9.8{+/-}3.65 minutes. The hook dislodgement rate was 0.98% (1/102), the intrapulmonary hemorrhage rate was 14.71% (15/102), and the pneumothorax rate was 16.67% (17/102). All pulmonary nodules were successfully resected by VATS at 73.82{+/-}13.83 minutes after localization, and no severe complications occurred. Conclusions: The use of a CTguided lung nodule localization needle for the preoperative localization of small pulmonary nodules decreases the time needed for intraoperative nodule detection and operation time. This strategy is a simple, safe, and accurate preoperative localization method that is worthy of increased clinical use.

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A multi-omics approach to identify the impact of miR-411ed on NSCLC TKI resistance

del Valle Morales, D.; Romano, G.; Saviana, M.; Nana-Sinkam, P.; Nigita, G.; Acunzo, M.

2026-04-03 cancer biology 10.64898/2026.03.31.715663 medRxiv
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Tyrosine Kinase inhibitors (TKIs) are widely used as effective chemotherapeutic agents for treating patients with EGFR-mutated NSCLC. Unfortunately, after treatment, patients eventually develop resistance to TKI therapy. The most common resistance mechanism for the TKI Osimertinib is the overexpression of the MET Proto-Oncogene, Receptor Tyrosine Kinase (MET). We previously demonstrated that miR-411-5p A-to-I edited at position 5 (miR-411ed) can directly target MET in A549 and H1299 cells. MiR-411ed in combination with Osimertinib reduced cell proliferation in two TKI resistant EGFR-mutated cell lines: HCC827R and PC9R. MiR-411ed did not downregulate MET expression in HCC827R, suggesting an alternative mechanism for TKI response. In this study, we aim to identify the mechanism of miR-411ed TKI response using a multi-omics approach of RNAseq and protein mass spectrometry. In our cellular model, we identified miR-411ed affected genes independent of MET activity, resulting in 211 genes (RNAseq) and 36 proteins (proteomics). Pathway analysis identified an increase in interferon signaling for RNAseq and combined omics, and a decrease in ERK/MAPK signaling in proteomics. Using the IsoTar target prediction tool, we identified STAT3 as a key regulator and confirmed STAT3 protein downregulation upon transfection with miR-411ed. We further investigated the effect of miR-411ed in vivo, observing a reduction in tumor size with miR-411ed in combination with Osimertinib but not with miR-411ed or Osimertinib treatment alone, confirming the effectiveness of miR-411ed in TKI response.

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Recombinant measles virus equipped with BNiP3, a pro-apoptotic gene, targets β-catenin pathway in triple negative breast cancer cells

Rajala, M. S.; Kumar, A.; Yadav, K.; Upadhyay, G. S.

2026-04-18 cancer biology 10.64898/2026.04.15.718830 medRxiv
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Oncolytic virotherapy is an emerging cancer therapy using genetically modified viruses. We previously reported engineering of measles virus with BNiP3, a proapoptotic gene for oncolytic purposes. The recombinant virus had shown promising results in breast cancer cells with a bias towards TNBC, an invasive and an aggressive subtype. Here, we investigated the mechanistic insights of anti-tumor effects induced by the recombinant virus. Initially, TNBC and non-TNBC tumor cell lines were compared bioinformatically using the available gene expression data through protein-protein interaction network using different topological properties. Four hub genes involved in tumor development and progression were identified to be the top genes in both the data sets. Of which, CTNNB1 gene encoding {beta}-catenin was found to be the significant one; as {beta}-catenin pathway is known to be a driver of tumor cell invasion and migration, the impact of the virus on this pathway was investigated in breast tumor cells. The results had demonstrated a notable decrease in {beta}-catenin expression and its downstream targets, cyclin D1, MMP7 reducing the migration potential of TNBC cells following virus infection. These findings suggest that the recombinant measles virus could be one of the effective treatment modalities to target invasive TNBC tumors. In vivo validation of engineered virus is ongoing to explore the therapeutic application of this virus. Graphical Abstract O_FIG O_LINKSMALLFIG WIDTH=200 HEIGHT=126 SRC="FIGDIR/small/718830v1_ufig1.gif" ALT="Figure 1"> View larger version (57K): org.highwire.dtl.DTLVardef@121de77org.highwire.dtl.DTLVardef@9473eeorg.highwire.dtl.DTLVardef@473ec4org.highwire.dtl.DTLVardef@169e94b_HPS_FORMAT_FIGEXP M_FIG C_FIG HighlightsO_LIUse of recombinant measles virus with a pro-apoptotic gene, BNiP3 to target breast cancer cells C_LIO_LIIdentification of top regulatory genes in breast cancer development and progression C_LIO_LIReduction of {beta}-catenin expression encoded by CTNNB1 gene in TNBC cells following virus infection C_LIO_LIDownregulation of {beta}-catenin downstream targets in TNBC cells with virus infection C_LIO_LIInhibition of migratory potential of TNBC cells following infection C_LI

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Development of a novel VHH intrabody targeting the N17 region of huntingtin exon 1 protein that prevents inclusion body formation.

Wavreil, F. D. M.; Pos, W.; Spits, M.; Sanz Sanz, A.; Rietveld, K.; van Dam, R.; Böhne, M.; van Deventer, S.; Schipper-Krom, S.; Reits, E. A. J.

2026-04-13 neuroscience 10.64898/2026.04.09.716913 medRxiv
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Huntingtons disease (HD) is a progressive neurodegenerative disease caused by a mutation in the exon 1 of the huntingtin (HTT) gene, which leads to an extended polyglutamine (polyQ) tract in the mutant protein. As a result, mutant huntingtin (mHTT) exon 1 fragments aggregate in cells, which disrupts proper neuronal function and eventually induces cell death. The selective reduction of these toxic mHTT fragments without disturbing the wild-type full-length HTT function would be a potential therapeutic strategy to treat and prevent HD. Intracellular antibodies (intrabodies) have emerged as an attractive strategy to specifically target disease-related proteins, with VHH intrabodies being of high interest as they are much smaller than single-chain variable fragments (scFv). Here, we describe the identification and development of VHH 1 as a lead candidate intrabody targeting the first 17 amino acids of the mHTT protein, using a humanized VHH page-display library to screen against mHTT(Q46) exon 1 to identify potential binders. Next, we further optimized VHH 1 into VHH 1a to improve cytoplasmic solubility. Using immortalized mouse striatal cells that express inducible untagged mHTT exon 1 fragments, we investigated the effects of the intrabody on soluble and insoluble mHTT species via microscopy and biochemical assays. We showed that the VHH 1a intrabody reduces the levels of insoluble mHTT species, thereby effectively interrupting the aggregation process. This study highlights the potential for VHH intrabodies to specifically target mHTT fragments, enabling therapeutic strategies to delay and prevent HD pathology. HighlightsO_LIThree binders were down-selected from a phage-display library to bind HTT N17 C_LIO_LIVHH 1a intrabody is the most efficient at reducing mutant HTT exon 1 aggregation C_LIO_LIVHH 1a acts on soluble HTT exon 1 oligomers to block the transition to inclusion body C_LI

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Thoracostomy Tube Infections: Prevalence and Associated Clinical Characteristics at a Tertiary Hospital in Northern Tanzania

Rwomurushaka, E. S.; Damas, L.; Niccodem, E.; Mwakyembe, T. E.; Msuya, D.; Chilonga, K.; Sango, M.

2026-04-17 surgery 10.64898/2026.04.15.26350981 medRxiv
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Background: Chest tube infection is one of the complications of the tube thoracostomy. Infectious complications may develop in 2% to 25% of patients who undergo thoracotomy tube placement. The use of prophylactic antibiotics to prevent infections associated with thoracostomy tubes remains a subject of debate. Current practices in managing infections related to tube thoracostomy are hindered by the lack of comprehensive and localised data on the microbial profile and their resistance patterns. Objective: To determine the prevalence of thoracostomy tube infections and associated clinical characteristics among patients treated with a thoracostomy tube at KCMC Zonal Referral Hospital. Methodology: Prospective cohort study done at KCMC Zonal Referral Hospital. Include all patients undergoing thoracostomy tube insertion from September 2024 to April 2025. Results: A total of 84 patients underwent tube thoracostomy during the study time. Of these 22 (26.2%) developed SSI. Out of the 22 samples collected, 17 (77.3%) had positive culture results. The most commonly identified pathogens were Pseudomonas aeruginosa (41.2%) and Staphylococcus aureus (29.4%). The highest overall susceptibility was observed with amikacin, effective against 10 (58.8%) of the tested organisms. The most common resistance was observed against ceftazidime (56.3%) and piperacillin-tazobactam (50.0%). Prolonged chest tube duration (>7 days) was the strongest independent predictor of tube thoracostomy infection. Conclusion: This study revealed a high prevalence of tube thoracostomy infection. Prolonged tube duration and admission to a non-surgical ward care emerge as key risk factors for SSI. These findings underscore the importance of limiting chest tube duration when clinically feasible and ensuring optimal postoperative care environments to minimise the risk of infection.

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Experiences towards hormonal treatments: a qualitative study among endometriosis patients and healthcare professionals

Le Quere, D.; Verroul, M.; Bouvard, M.; Brault Galland, E.; Dubernard, G.; Philip, C.-A.; Haesebaert, J.; Brulport, A.

2026-04-01 obstetrics and gynecology 10.64898/2026.03.31.26349847 medRxiv
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Objective: To investigate, in the context of endometriosis management, the perceptions of patients and healthcare professionals regarding hormonal treatment options. Design: Qualitative study using semi-structured focus group methodology. Setting: University hospitals and academic research center. Subject(s): Patients with endometriosis (n=20) and healthcare professionals (n=13) involved in their care. Intervention(s): Not applicable Main Outcome Measure(s): Focus group topics investigated representations on the concept of treatment effectiveness, emotion associated to this medical management and the perceived impact of these therapies on patient-professional and patient-environment relationship. Result(s): We highlighted a discrepancy between patients and doctors regarding the concept of efficacy of hormonal therapies. Long-term amenorrhea is the main priority for healthcare professionals, whereas pain reduction remains the immediate wait for patients. Interviewed patients reported a lack of listening and empathy, a shared-information deficit as regards treatment options and side-effects and a need to involved partner and family in care. These factors contribute to communication issues between patients and doctors and appear to contribute to significant mental burden on both sides. Among healthcare professionals, mental burden appears to arise primarily from the resource-intensive demands of endometriosis management, whereas among patients it is driven more by the need to take an active role in their own care to compensate for insufficient information provided by physicians. Conclusion: In this study, we highlighted the ambiguities surrounding the concept of therapeutic efficacy of hormonal therapies and collected several factors to try to improve shared-decision-making process in the management of endometriosis. This is designed to help us create a shared decision-making tool in the near future.

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Patients' Ideas, Concerns, Expectations in Physiotherapy: A Questionnaire Study

Dani, R.; Dave, D.

2026-04-06 rehabilitation medicine and physical therapy 10.64898/2026.04.06.26350229 medRxiv
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Global healthcare is targeting patient-centred care, as it leads to better health outcomes and higher level of patient satisfaction. Patient-centred communication, is an important part of patient-centred care because it focuses on involving patients in their care. Recent surveys both nationally and globally have shown that patients are not involved enough in their own healthcare decisions. This problem is especially common among the elderly with chronic conditions. This study aimed to describe patient-healthcare professional interactions, expectations, and satisfaction in physiotherapy within an understudied context, thereby providing important, specific data on ICE dynamics and satisfaction in the specific setting. Cross-sectional study of participants in scheduled consultations was conducted. Two government physiotherapy centres, seven private physiotherapy centres and two trust centres with physiotherapy facilities in Gujarat, India. 232 patients (from various public and private physiotherapy clinics) participated in the study. Patients' ideas, concerns, expectations (ICE) and satisfaction were explored. Almost 88% of patients reported their thoughts and explanations about their symptoms during the consultation. Most patients described not having any concerns about the diagnosis/treatment, and more than two-third of patients consulting PTs expected explanation for their symptoms. Almost 90% patients were satisfied with the consultation. The study revealed that while most patients conveyed their thoughts during consultations, very few expressed their concerns. Overall, patients were satisfied with their consultations.

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Evaluating the CellSearch CMMC Assay for Non-Invasive Longitudinal MRD Monitoring

Powell, S.; Bui, T.; Gullipalli, D.; LaCava, M.; Jones, S. M.; Hansen, T.; Kuhr, F.; Swat, W.; Simandi, Z.

2026-04-02 hematology 10.64898/2026.03.28.26349025 medRxiv
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Current clinical management of multiple myeloma (MM) relies on bone marrow (BM) biopsies for minimal residual disease (MRD) assessment. While BM biopsies are the gold standard, their invasive nature and potential to miss extramedullary or patchy disease necessitate sensitive, non-invasive liquid biopsy platforms. In this study, we evaluated the analytical performance of the CellSearch CMMC assay to determine its utility for deep-MRD monitoring. Using a standard 4 mL whole blood input, the assay achieves a WBC-normalized sensitivity of 2.45 x 10-7, supported by a limit of quantitation of 5 cells per run. Given this high analytical sensitivity, the assay provides a robust negative predictive value, rendering false-negative findings highly unlikely in populations with detectable peripheral disease. These findings characterize the CellSearch CMMC assay as a highly sensitive, analytically validated platform for non-invasive deep-MRD level longitudinal surveillance monitoring. When integrated into a clinical workflow that accounts for its specificity profile, the platform offers a patient-friendly complement to serial BM biopsies, with the potential to reduce their frequency in appropriate clinical contexts.