Assessment of Efficacy and Accuracy of Cervical Cytology Screening with Artificial Intelligence Assistive System.

The role of Artificial intelligence (AI) in pathology is one that offers many exciting new possibilities for improving patient care. This study contributes to this development by identifying the viability of AICyte Assistive System for cervical screening, and to investigate the utility of the system in assisting with workflow and diagnostic capability. In this study, a novel scanner was developed using a Ruiqian WSI-2400, trademarked AICyte Assistive system, to create AI-generated gallery of the most diagnostically relevant images, objects of interest (OOI), and provide categorical assessment, according to Bethesda category, for cervical ThinPrep Pap slides. For validation purposes, two pathologists reviewed OOIs from 32,451 cases of ThinPrep Paps independently, and their interpretations were correlated with the original ThinPrep interpretations (OTPI). The analysis was focused on the comparison of reporting rates, correlation between cytological results and histological follow-up findings, and the assessment of independent AICyte screening utility. Pathologists using the AICyte system had a mean reading time of 55.14 seconds for the first 3,000 cases trending down to 12.90 seconds in the last 6,000 cases. Overall average reading time was 22.23 seconds per case as compared to a manual reading time approximation of 180 seconds. Usage of AICyte compared to OTPI had similar sensitivity (97.89% vs 97.89%) and a statistically significant increase in specificity (16.19% vs 6.77%). When AICyte was run alone at a 50% negative cut-off value, it was able to read slides with a sensitivity of 99.30% and specificity of 9.87%. When AICyte was run independently at this cut-off value, no sole case of HSIL/SCC squamous lesion was missed. AICyte can provide a potential tool to help pathologists in both diagnostic capability and efficiency, which remained reliable as compared to baseline standard. Also unique for AICyte is the development of a negative cutoff value for which AICyte can categorize cases as "not needed for review" to triage cases and lower pathologist workload. This is the largest case number study that pathologists reviewed OOI with AI assistive system. The study demonstrates that AI assistive system can be broadly applied for cervical cancer screening.

[Characterization of otorhinolaryngologic manifestations in children with mucopolysaccharide storage disease typeâ and type â ¡].

Objective:To analyze the characteristics of otorhinolaryngological clinical manifestations in children with Mucopolysaccharide（MPS） type Ⅰ and type II in order to improve the knowledge of otorhinolaryngologists about this disease. Methods:Clinical data related to 55 children with MPS type Ⅰ and type II were retrospectively analyzed to investigate the clinical manifestations of MPS in ENT. Results:All 40 patients（72.72%） with MPS had at least one ENT symptom during the course of the disease, with 95% of them having an ENT symptom prior to the diagnosis of MPS; upper airway obstruction was the most common ENT symptom（34, 85.00%）, followed by recurrent upper respiratory tract infections（23, 57.50%）, and lastly, hearing loss（11, 27.50%）; all 26 patients had undergone at least one surgical procedure, of which 15（57.69%） had undergone ENT surgery, and all of these patients underwent ENT surgery before diagnosis. The most common ENT surgery was adenoidectomy. Conclusion:Early clinical manifestations of MPS patients are atypical, but the early and prevalent appearance of otolaryngologic symptoms and increased awareness of the disease among otolaryngologists has a positive impact on the prognosis of MPS.

Double network self-healing hydrogels based on carboxyethyl chitosan/oxidized sodium alginate/Ca2+: Preparation, characterization and application in dye absorption.

This paper presents the formation of a self-healing hydrogel prepared by carboxyethyl modification of chitosan and crosslinking with oxidized sodium alginate. Concurrently, the incorporation of Ca2+ facilitated the formation of "calcium bridges" through intricate coordination with carboxyl moieties, bolstering the attributes of the hydrogel. Various characterization methods, including scanning electron microscopy, texture analysis, and rheological measurements, demonstrated that the introduction of carboxyethyl groups resulted in a more compact hydrogel network structure and improved the hardness and elasticity. The addition of Ca2+ helped to further enhance the mechanical performance of the hydrogel and increase its thermal stability. Then, the adsorption capacity was also investigated, showing adsorption capacities of 46.17 mg/g methylene blue and 46.44 mg/g congo red for carboxyethyl chitosan/oxidized sodium alginate hydrogel, a four-fold increase for congo red versus chitosan/oxidized sodium alginate hydrogel. In addition, the adsorption behavior of CEC/OSA/2%Ca2+ hydrogel can be well described by pseudo-second-order kinetic model and Langmuir adsorption isothermal model. Compared to traditional hydrogels, CEC/OSA/2%Ca2+ hydrogel shows superior mechanical strength, enhanced thermal stability, and improved adsorption capacity, which can effectively adsorb not only methylene blue but also congo red. These advancements demonstrate our hydrogel's innovative properties.

Development and application of DETECTR-based rapid detection for pathogenic Bacillusanthracis.

Bacillus anthracis (B. anthracis) is a gram-positive bacterium responsible for the acute disease anthrax. Rapid and reliable identification of pathogenic B. anthracis is important in the detection of natural infectious disease cases or bio-threats. Herein, a DNA endonuclease targeted CRISPR trans reporter (DETECTR) detection platform based on recombinase polymerase amplification (RPA) was studied. The DETECTR system targeted three sequences from B. anthracis (the BA_5345 chromosomal specific marker, the protective antigen gene pag A from pXO1 plasmid and the capsule-biosynthesis-related gene cap A from pXO2 plasmid). We developed a rapid (<40 min), easy-to-implement and accurate identification method for of B. anthracis nucleic acid with near two-copies sensitivity. The combination of tripartite primer sets is effective for the reliable identification of B. anthracis but also for fast screening of pathogenic strains. More importantly, DETECTR correctly detected simulated clinical blood samples and firstly detected positive samples collected from the location of world War-II site, preserved at north-east China (45°36'55.940″ N, 126°38'33.738″ E) with high sensitivity and specificity. Our study provides insight into the DETECTR-based detection of B. anthracis. We present a novel screening and diagnostic option for pathogenic B. anthracis that can be performed on a user-friendly portable device. Based on its proven reliability, sensitivity, specificity and simplicity, our proposed method can be readily adapted to detect pathogenic B. anthracis, anthrax and biothreats.

Analysis of Gene Expression Profiles, Cytokines, and Bacterial Loads Relevant to Alcoholic Liver Disease Mice Infected With V. vulnificus.

Patients with liver disease are susceptible to infection with Vibrio vulnificus (V. vulnificus), but the specific reasons remain elusive. Through RNA-seq, we found that when mice with alcoholic liver disease (ALD) were infected with V. vulnificus by gavage, compared with the Pair group, the small intestinal genes affecting intestinal permeability were upregulated; and the number of differentially expressed genes related to immune functions (e.g., such as cell chemotaxis, leukocyte differentiation, and neutrophil degranulation) decreased in the liver, spleen, and blood. Further analysis showed that the number of white blood cells decreased in the Pair group, whereas those in the ALD mice did not change significantly. Interestingly, the blood bacterial load in the ALD mice was about 100 times higher than that of the Pair group. After the ALD mice were infected with V. vulnificus, the concentrations of T cell proliferation-promoting cytokines (IL-2, IL-23) decreased. Therefore, unlike the Pair group, ALD mice had weaker immune responses, lower T cell proliferation-promoting cytokines, and higher bacterial loads post-infection, possibly increasing their susceptibility to V. vulnificus infection. These new findings we presented here may help to advance the current understanding of the reasons why patients with liver disease are susceptible to V. vulnificus infection and provides potential targets for further investigation in the context of treatment options for V. vulnificus sepsis in liver disease patient.

Double-staining of E-cadherin and podoplanin offer help in the pathological diagnosis of indecisive early-invasive oral squamous cell carcinoma.

Diagnosis of the early-invasive oral squamous cell carcinoma (OSCC) can be challenged in biopsies, and immunohistochemistry is commonly used in such settings. A double immunohistochemical staining (DIHC) containing both E-cadherin (E-cad) and podoplanin antibodies were developed and its use in the diagnosis of limited cancer in the early-invasive was evaluated. In this study, the expressions of E-cadherin and podoplanin were checked by the way of DIHC in 214 oral biopsy tissues including normal oral epithelial (NOE), oral epithelial dysplasia (OED), squamous carcinoma in situ (SCIS), and OSCC. Meanwhile, 17 indecisive cases whose original diagnoses were SCIS incidentally suspicious infiltration had been checked. Tumor specimens presented a significant loss of expression of E-cad when compared with normal epithelium. In all NOE and 62.5% ofOED tissues, the expression of E-cad showed positive clearly and strongly in cell membrane, while podoplanin was showed negative.The expression of E-cad was showed positive in 35.6% of SCIS as the expressions of podoplanin became stronger. The expression of E-cad declined obviously and the expression of podoplanin became stronger in the 54.8% of OSCC. The expression of podoplanin was easier to be observed in the same slice due to the decreased expression of E-cad in malignant cell. By the same way, early-invasions were showed clearly in 5 cases of 17 indecisive cases. The decrease of E-cad and the increase of podoplanin had closely relationship with OSCC (P<0.05). The cocktail double staining of E-cad and podoplanin may offer an objective index for the decision of the early-invasive oral squamous cell carcinoma.