Negative / Null Result ReportMedicine
Özdemir BG, Agakishiyeva L, Bilgi A et al. · 2026 · Journal of lower genital tract disease
Objectives Assessment of clitoral artery flow parameters (eg, pulsation and resistance indices) is important for individual patient evaluation of sexual function quality. Selected hormonal treatments may also influence these vascular…
View details →DOI: 10.1097/lgt.0000000000000955 Negative / Null Result Report
Sitorasmi PH, Ningtiyas YS, Wahyuni I et al. · 2026 · Preprint
Background Corneal collagen cross-linking (CXL) is a procedure for making bonds that connect polymer chains to one another. Corneal CXL aims to slow or stop the progression of keratoconus by using photooxidative therapy so as to increase…
View details →DOI: 10.12688/f1000research.129694.2 Negative / Null Result ReportOpen accessMedicine
Hernández-Rodríguez D, Contreras A, Melgar Lalanne G et al. · 2026 · PeerJ
Background The gut microbiota maturation extends beyond the first two years of life. Early perinatal and postnatal factors may influence the child's nutritional status, which, in turn, can affect the composition of their gut microbiota.…
View details →DOI: 10.7717/peerj.21253 Failed Experiment ReportMedicine
Sugase T, Kanemura T, Matsuura N et al. · 2026 · Annals of surgical oncology
Background Adjuvant nivolumab has become a standard treatment after curative resection for locally advanced esophageal cancer; however, postoperative recurrence remains common. The efficacy of immune checkpoint inhibitor (ICI)-based…
View details →DOI: 10.1245/s10434-026-19818-4 Negative / Null Result ReportOpen accessMedicine
Cañones-Zafra R, Allendes-Urquiza G, Muñiz C et al. · 2026 · Journal of ophthalmology
Purpose Our purpose is to report the results of a prospective study on ocular discomfort and objective tear film parameters (osmolarity and NIKBUT), in myopic patients, and observe the possible differences at 1 month between randomized…
View details →DOI: 10.1155/joph/6643075 Negative / Null Result ReportMedicine
Still MEH, Alberts A, Nagda P et al. · 2026 · The Journal of craniofacial surgery
Introduction Craniosynostosis is a common pediatric condition that results in variable symptoms that range from asymptomatic cosmetic deformities to severe signs of intracranial hypertension. Little is understood about the relationship…
View details →DOI: 10.1097/scs.0000000000012817 Negative / Null Result Report
Ko Y, Qiao R, Guo Y et al. · 2026 · Preprint
Abstract Purpose To compare pregnancy outcomes following FET in patients with moderate-to-severe IUA treated with GnRH-a versus HRT therapy before hysteroscopy. It might offer novel insights into hysteroscopy before embryo transfer.…
View details →DOI: 10.21203/rs.3.rs-9037733/v1 Negative / Null Result ReportOpen accessMedicine
Azriel M, Shohat H, Blinderman D et al. · 2026 · Journal of experimental botany
Dehydration-responsive element-binding (DREB) transcription factors play an important role in plant responses to drought. DREB subfamily A4 contains a subgroup named TINY. Previous studies in Arabidopsis suggest that TINYs suppress plant…
View details →DOI: 10.1093/jxb/erag054 Negative / Null Result ReportMedicine
Johnson CM, Kenne KA, Bradley CS et al. · 2026 · Urogynecology (Philadelphia, Pa.)
Importance Perioperative gabapentin is widely used in gynecology ERAS protocols, but evidence for its use for vaginal prolapse procedures is very limited. Objective The objective of this study was to evaluate the effect of preoperative…
View details →DOI: 10.1097/spv.0000000000001746 Negative / Null Result ReportMedicine
Zeng X, Huang Z, Shen H et al. · 2026 · BMC urology
Background Catheter displacement during urodynamic studies remains a common challenge, potentially introducing artifacts, compromising test accuracy, and decreasing patient comfort. Despite the clinical significance of stable catheter…
View details →DOI: 10.1186/s12894-026-02169-3 Negative / Null Result ReportMedicine
Bendtsen AW, Lykkebirk L, Behrens CM et al. · 2026 · Ophthalmic epidemiology
Purpose To examine changes in macular ganglion cell layer (GCL) thickness over five years in a community-based birth cohort of children without ophthalmic disease. Methods This prospective study included 660 children without ophthalmic…
View details →DOI: 10.1080/09286586.2026.2693522 Negative / Null Result ReportMedicine
Bandiaky ON, Volteau C, Bihan A et al. · 2026 · The International journal of prosthodontics
Purpose The aim of this study was to evaluate the effect of using the VirTeaSy Dental simulator in conjunction with a virtual reality headset on student performance in conventional fixed prosthodontics simulations. Material and methods The…
View details →DOI: 10.11607/ijp.9731 Negative / Null Result ReportOpen accessMedicine
Asano T, Uemura K, Higuchi R et al. · 2026 · Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs
Purpose Closed suction drainage has been used after total hip arthroplasty (THA) to prevent hematoma, muscle swelling, and complications, but its effectiveness remains controversial. This study evaluated the effects of drains on…
View details →DOI: 10.1007/s10047-026-01561-y Negative / Null Result ReportMedicine
Osawa Y, Funahashi H, Ido H et al. · 2026 · International orthopaedics
Background Recent advances in navigation systems have enabled more precise osteotomies. However, the clinical outcomes of navigation-assisted transtrochanteric rotational osteotomy (TRO) for osteonecrosis of the femoral head (ONFH) remain…
View details →DOI: 10.1007/s00264-026-06898-w Negative / Null Result ReportMedicine
Sarıyılmaz E, Sarıyılmaz Ö, Sessiz R et al. · 2026 · BMC oral health
Background This study aimed to compare the filling volume and surface area of Biodentine placed in mandibular molar isthmuses using three different compaction techniques (manual, ultrasonic, and sonic endomotor system). Materials and…
View details →DOI: 10.1186/s12903-026-08765-x Negative / Null Result ReportMedicine
Dong M, Liu Y, Wei C · 2026 · BMC surgery
Background To evaluate whether constrained acetabular liners (CAL) used in total hip arthroplasty (THA) reduce the risk of dislocation and related complications in patients with neuromuscular disorders and unstable comminuted femoral…
View details →DOI: 10.1186/s12893-026-03973-2 Negative / Null Result ReportMedicine
Marchi MB, Al Harami A, Maher A et al. · 2026 · European journal of ophthalmology
PurposeTo compare the clinical outcomes of conventional photorefractive keratectomy (PRK) and transepithelial PRK (TransPRK) for the correction of myopic refractive errors.MethodsThis prospective, paired-eye comparative study included 48…
View details →DOI: 10.1177/11206721261461914 Negative / Null Result ReportMedicine
Farhadi F, Ahmadpour F, Nezafati S et al. · 2026 · Aesthetic plastic surgery
Background and aim The nasal tip plays a central role in facial aesthetics, and achieving long-term tip stability is a key objective in rhinoplasty. This study compared postoperative tip stability between structural rhinoplasty using a…
View details →DOI: 10.1007/s00266-026-05847-7 Negative / Null Result ReportOpen accessMedicine
Chen X, Xie L, Li B · 2026 · Frontiers in microbiology
Objective Gut microbiota is closely associated with athletic performance, but differences between sport disciplines have rarely been reported. This study collected gut microbiota samples from athletes across different sport disciplines to…
View details →DOI: 10.3389/fmicb.2026.1770499 Negative / Null Result ReportMedicine
Bruno A, D'Antimi A · 2026 · Aesthetic plastic surgery
Introduction Surgical bleeding remains a key determinant of morbidity in abdominoplasty and lipoabdominoplasty. While hormonal fluctuations during the menstrual cycle have been linked to altered hemostasis in hormonally responsive tissues…
View details →DOI: 10.1007/s00266-026-05967-0 Negative / Null Result ReportOpen accessMedicine
Telles PYV, Oliveira VC, Geng Vivanco R et al. · 2026 · Scientific reports
To evaluate the antibiofilm activity of a chlorine-releasing solution (CRS) and its in vitro effects on enamel color stability, surface roughness, and microhardness. A mixed biofilm composed of Staphylococcus aureus, Candida albicans, and…
View details →DOI: 10.1038/s41598-026-49642-5 Negative / Null Result ReportOpen accessMedicine
Veraza JA, Martinez MA, Angulo P et al. · 2026 · Cureus
Background Intrathecal morphine remains a cornerstone of post-cesarean analgesia due to its prolonged spinal effect; however, its use is limited by dose-dependent adverse effects. Contemporary practice trends favor dose minimization, yet…
View details →DOI: 10.7759/cureus.107761 Negative / Null Result ReportOpen accessMedicine
Qaraghuli AM, Cagidiaco EF, Ferrari M · 2026 · Journal of functional biomaterials
Background: The application of veneer restorations over previously composite-restored anterior teeth presents significant clinical challenges, particularly in achieving optimal marginal sealing. Aim: This in vitro study aimed to evaluate…
View details →DOI: 10.3390/jfb17050249 Negative / Null Result ReportMedicine
Tanaka T, Tomihari M, Hasegawa T · 2026 · Australian veterinary journal
Primary peritoneal tumours are uncommon and include mesothelioma and carcinoma. Mesothelioma identification is challenging, as there are no established rapid diagnostic methods. In the absence of a simple means of diagnosis, evaluation…
View details →DOI: 10.1111/avj.70101 Negative / Null Result ReportOpen accessMedicine
Li Y, Chen C, Wang C · 2026 · Frontiers in gastroenterology (Lausanne, Switzerland)
Objective To investigate the perspectives and clinical practice patterns of inflammatory bowel disease (IBD) physicians regarding the use of 5-aminosalicylic acid (5-ASA) in Crohn's disease (CD). Methods A 21-item questionnaire was…
View details →DOI: 10.3389/fgstr.2026.1783772 Negative / Null Result ReportMedicine
Mor H, Şar H, Arslan T et al. · 2026 · BMC sports science, medicine & rehabilitation
Background The FIFA 11 + Kids (FIFA 11+) warm-up program is effective for injury prevention and to enhance sports performance, including vertical jump (VJ), sprint, balance, and agility. However, no previous study has examined the acute…
View details →DOI: 10.1186/s13102-026-01751-4 Negative / Null Result ReportMedicine
Garrido LM, Duarte MA, Martins MP et al. · 2026 · General dentistry
This in vitro study aimed to compare the effects of conventional and ultrasonic root canal preparation on the adhesion of glass fiber posts to root canal dentin. A total of 20 human maxillary central incisors were instrumented and then…
Negative / Null Result Report
Zeng C, Tabata T, Takahashi R et al. · 2026 · Preprint
Abstract Background Adaptation of indirect restorations is critical for clinical success. Although the conventional silicone replica method is destructive, direct in-situ Swept-source optical coherence tomography (SS-OCT) can be used to…
View details →DOI: 10.21203/rs.3.rs-9841824/v1 Negative / Null Result ReportOpen accessMedicine
Reder SR, Hardt J, Brockmann MA et al. · 2026 · PNAS nexus
The aim of this present study was to investigate the multifactorial determinants of recovery outcomes in cerebral aneurysm patients by identifying subgroups based on clinical and psychological factors. A cross-sectional approach was used (…
View details →DOI: 10.1093/pnasnexus/pgag157 Failed Experiment Report
Manabe T, Okumura T, Terabayashi K et al. · 2025 · Preprint
Background: /Objectives: Appropriate biomarkers are necessary for early diagnosis and multidisciplinary treatment of pancreatic ductal adenocarcinoma (PDAC). In recent years, the effectiveness of circulating tumor cells (CTCs) as…
View details →DOI: 10.20944/preprints202510.0403.v1 