Negative / Null Result ReportMedicine
Park JO, Park YB, Yoon JH et al. · 2026 · The Journal of prosthetic dentistry
Statement of problem Comparative studies assessing monolithic zirconia and metal-ceramic for implant-supported fixed prostheses remain limited. Purpose This retrospective study aimed to compare the survival and success of metal-ceramic and…
View details →DOI: 10.1016/j.prosdent.2026.02.024 Negative / Null Result ReportMedicine
Uchimoto T, Hirosuna K, Niigawa H et al. · 2026 · Japanese journal of clinical oncology
Background Triplet therapy with darolutamide, androgen deprivation therapy, and docetaxel (DOC) has emerged as an intensified treatment option for metastatic castration-sensitive prostate cancer (mCSPC). This study evaluated real-world…
View details →DOI: 10.1093/jjco/hyag011 Negative / Null Result Report
Özceyran C, Sonu NC, Öcal FD et al. · 2026 · Preprint
Abstract Background: To evaluate whether second-trimester aspartate aminotransferase-to-platelet ratio index (APRI) and Fibrosis-4 (FIB-4) scores can predict subsequent development of intrahepatic cholestasis of pregnancy (ICP). Methods:…
View details →DOI: 10.21203/rs.3.rs-9702763/v1 Negative / Null Result Report
Dadpey B, Zhu K, Sward N et al. · 2026 · Preprint
Abstract Purpose To compare the rate of distal interlocking screw backout between inlay-design and non-inlay design retrograde intramedullary femoral nails in the treatment of distal femur fractures. Methods Adults with AO/OTA 33 distal…
View details →DOI: 10.21203/rs.3.rs-9774042/v1 Negative / Null Result ReportMedicine
Büğüşan Oruç S, Akdağ Mirzaoğlu N, Yakut Y · 2026 · International journal of occupational safety and ergonomics : JOSE
Objectives . This study aimed to investigate pinch strength and manual dexterity in different postures among young adults. Methods . A total of 200 individuals aged 18-45 years participated. Key, tip and palmar pinch strengths were…
View details →DOI: 10.1080/10803548.2026.2679347 Negative / Null Result ReportOpen accessMedicine
Karaca O, Torlak MS, Tekin AN · 2026 · Revista da Associacao Medica Brasileira (1992)
Objective The use of large language models is increasing in healthcare. The aim of this study was to evaluate and compare the responses provided by ChatGPT (OpenAI) and Gemini (Google) to frequently asked questions about stroke and its…
View details →DOI: 10.1590/1806-9282.20251488 Negative / Null Result ReportMedicine
Thomas RM, Nayak R, Madi M et al. · 2026 · BMC oral health
Remaining Root Dentin Thickness (RRDT) after root canal instrumentation is an important parameter to be assessed with newer file systems. This study aimed to evaluate the root dentin thickness following instrumentation of primary molar…
View details →DOI: 10.1186/s12903-026-09005-y Negative / Null Result ReportMedicine
Zapata KA, McGinley JJ, Sucato DJ et al. · 2026 · Spine deformity
Purpose To evaluate the effectiveness of nighttime brace treatment in boys with adolescent idiopathic scoliosis (AIS) compared to girls according to brace adherence and curve progression. Methods Children with predominantly…
View details →DOI: 10.1007/s43390-026-01492-x Negative / Null Result ReportMedicine
Hayashi K, Yoshida M, Hayashi S et al. · 2026 · Japanese journal of ophthalmology
Purpose To compare visual function between pseudophakic eyes with enhanced monofocal intraocular lenses (IOLs) and phakic eyes with clear lenses among patients in their 50s, 60s, and 70s. Study design Prospective comparative study. Methods…
View details →DOI: 10.1007/s10384-025-01321-0 Negative / Null Result ReportMedicine
Chapron L, Bellot L, Mallet Y et al. · 2026 · Retina (Philadelphia, Pa.)
Purpose To assess the diagnostic value of tomographic signs on OCT and OCT-A, particularly paracentral acute middle maculopathy (PAMM), in predicting temporal artery biopsy (TAB) positivity in suspected giant cell arteritis (GCA),…
View details →DOI: 10.1097/iae.0000000000004783 Negative / Null Result ReportMedicine
Shehu E, Arora K · 2026 · Health services research
Objective To examine whether different caregiving arrangements influence hospitalization risk and frequency among older adults with functional limitations. Study setting and design This longitudinal study used linear probability and…
View details →DOI: 10.1111/1475-6773.70130 Negative / Null Result ReportMedicine
Zhang Y, Yu W, Shen W · 2026 · Medicine
This study aimed to explore the effects of 3 immediate reconstruction methods - prosthesis implantation, latissimus dorsi flap (LDF), or their combination - on postoperative outcomes following breast cancer (BC) surgery. A retrospective,…
View details →DOI: 10.1097/md.0000000000049090 Negative / Null Result ReportMedicine
Tomalka A, Weidner S, Rode C et al. · 2026 · Experimental physiology
Eccentric muscle contractions are essential for locomotion and daily activities. Force during these contractions depends on both cross-bridge (XB) and non-cross-bridge (non-XB) elements, including titin, with contributions varying by fibre…
View details →DOI: 10.1113/ep093831 Negative / Null Result Report
Qi Z, Li W, Li Z et al. · 2026 · Preprint
Abstract Background Female genital cosmetic surgery (FGCS) has gained increasing popularity worldwide, with high reported satisfaction rates. However, dynamic postoperative changes may lead to patient anxiety and misinterpretation during…
View details →DOI: 10.21203/rs.3.rs-9212553/v1 Negative / Null Result Report
Ismaile S, Alhosban F, Shajrawi A et al. · 2026 · Preprint
Abstract Background Preparing undergraduate nurses for high-acuity practice requires educational approaches that allow safe rehearsal of complex clinical situations, yet evidence from routine programme delivery remains mixed when immersive…
View details →DOI: 10.21203/rs.3.rs-9187827/v1 Negative / Null Result ReportMedicine
Yuan W, Liang X, Zhang R et al. · 2026 · Clinical therapeutics
Purpose This study aimed to evaluate the effects of remimazolam in conjunction with esketamine on anesthesia and the incidence of early perioperative neurocognitive disorders (PNDs) in patients undergoing thoracoscopic partial lung…
View details →DOI: 10.1016/j.clinthera.2026.02.015 Negative / Null Result Report
Hattori S, Shimizu K, Kotorii R et al. · 2026 · Preprint
Abstract Purpose. To evaluate the safety and feasibility of introducing retroperitoneal single-port robot-assisted radical prostatectomy (SP-RARP) by comparing a single surgeon’s initial 50 cases with 50 recent transperitoneal multiport…
View details →DOI: 10.21203/rs.3.rs-9990410/v1 Negative / Null Result ReportMedicine
Baker S, Nouraie SM, Steinman RA · 2026 · JCI insight
Programs at the medical school level to train students as physician-scientists include NIH-supported MD-PhD (Medical Scientist Training Program, MSTP), non-NIH-supported MD-PhD (MDPhD), and limited research pathways for MD-only students.…
View details →DOI: 10.1172/jci.insight.202606 Negative / Null Result ReportMedicine
Taghizadeh H, Parvizi MJ, Roostaei A et al. · 2026 · Research quarterly for exercise and sport
This study compared the effects of blocked practice, random practice (contextual interference), and differential learning on acquisition, retention, and performance under psychological pressure of a basketball jump shot in novice…
View details →DOI: 10.1080/02701367.2026.2686249 Negative / Null Result Report
van Rassel CR, Rummel M, MacInnis MJ · 2026 · Preprint
This study examined the utility of HRV detrended fluctuation analysis alpha-1 (DFAα1) to assess readiness-to-train and exercise durability under varying acute training loads. Nineteen trained cyclists completed two 20-minute time-trials…
View details →DOI: 10.64898/2026.05.27.26354281 Negative / Null Result Report
Huang W, Jiang L, Wang H et al. · 2026 · Preprint
Abstract Background With advances in minimally invasive surgery, endometrial cancer treatment has evolved from laparotomy to laparoscopic (LS) and robotic techniques. However, outcomes such as surgical trauma, recovery, and cost vary…
View details →DOI: 10.21203/rs.3.rs-9654946/v1 Negative / Null Result ReportMedicine
Cebeci T, Polat Akmansoy B · 2026 · The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association
ObjectiveTo compare osteomeatal complex (OMC) anatomical variations and nasal cavity airway volume between individuals with cleft lip and palate (CLP) and healthy controls using cone beam computed tomography (CBCT).DesignRetrospective,…
View details →DOI: 10.1177/10556656261458450 Negative / Null Result Report
Bednarek MM, Walędziak M, Zuzaniuk MJ et al. · 2026 · Preprint
Abstract Purpose To compare operative outcomes, postoperative complications, and weight-loss effectiveness between three-trocar and conventional five-trocar laparoscopic sleeve gastrectomy (LSG). Methods A retrospective cohort study of 100…
View details →DOI: 10.21203/rs.3.rs-8719891/v1 Negative / Null Result ReportMedicine
Çavdarcı H, Sarıca M, Erensoy K et al. · 2026 · Tropical animal health and production
This study investigated the effects of different flooring designs on the welfare and behavioral traits in fast-growing broilers. A total of 600 day-old Ross-308 chickens were randomly allocated to five treatment groups: fully littered…
View details →DOI: 10.1007/s11250-026-05149-9 Negative / Null Result ReportMedicine
Bruni M, Perina F, Figueiredo J et al. · 2026 · Aquatic toxicology (Amsterdam, Netherlands)
Metallic corrosion poses an economic problem worldwide and is often mitigated by adding corrosion inhibitors (CIs) to protective coatings. Conventional CIs, such as 2-mercaptobenzothiazole (MBT) and benzotriazole (BTA), exhibit toxicity to…
View details →DOI: 10.1016/j.aquatox.2026.107912 Negative / Null Result ReportMedicine
Swallow C, Imamoglu M, Imamoglu AG et al. · 2025 · Urogynecology (Philadelphia, Pa.)
Importance Sacrocolpopexy is essential in the surgical management of advanced pelvic organ prolapse, and selecting the appropriate route for concomitant hysterectomy is critical. Objectives The aim of this study was to evaluate the effect…
View details →DOI: 10.1097/spv.0000000000001659 Negative / Null Result ReportOpen accessMedicine
Quan TT, Nguyen HM, Nguyen HT et al. · 2026 · Cureus
Objective This study aims to describe ductus arteriosus (DA) morphology in patients with pulmonary atresia with ventricular septal defect (PA-VSD) and to assess exploratory paired differences between echocardiography and digital…
View details →DOI: 10.7759/cureus.108765 Negative / Null Result Report
Sorjonen K, Melin B, Melin M · 2026 · Preprint
Based on statistically significant effects in cross-lagged panel network (CLPN) models, Ning and Zou concluded bidirectional prospective influences between negative self-attention and depression. However, cross-lagged effects may be…
View details →DOI: 10.31234/osf.io/4pqj7_v1 Negative / Null Result ReportOpen accessMedicine
Seber T, Uylar Seber T, Çiçek F et al. · 2026 · Journal of pain research
Purpose Fibromyalgia (FM) is a chronic pain syndrome frequently associated with neuroendocrine dysfunction and has been hypothesized to share pathophysiological mechanisms with conditions such as empty sella (ES) and intracranial…
View details →DOI: 10.2147/jpr.s609244 Negative / Null Result ReportMedicine
Goc G, Sukur YE · 2026 · Journal of minimally invasive gynecology
Study objective To compare embryo euploidy rates and reproductive outcomes among women with ovarian endometriomas who underwent ethanol sclerotherapy (EST), laparoscopic cystectomy, or expectant management prior to in vitro fertilization…
View details →DOI: 10.1016/j.jmig.2026.06.010 