Objective To investigate T cell subtypes and their functions in liver immune microenvironments among patients with alveolar echinococcosis (AE) using single-cell RNA sequencing (scRNA-seq). Methods Four AE patients that were admitted to Qinghai Provincial People’s Hospital in 2023 for hepatic surgery for the first time were enrolled, and liver specimens were sampled 1 cm (peri-lesion, PL group) and > 5 cm from AE lesions (distal lesion, DL group) among each patient. Finally, a total of eight liver specimens were sampled from four AE patients for scRNA-seq analysis. Genome and transcriptome data of liver specimens were processed using the software Cell Ranger and R package. Differentially expressed genes (DEGs) and their biological functions were analyzed using gene ontology (GO) enrichment analysis and Kyoto encyclopedia of genes and genomes (KEGG) pathway analysis, and the primary intercellular communication patterns and interaction mechanisms were identified among T cell subtypes in liver specimens using the CellChat package. In addition, the developmental stages of T cells were subjected to trajectory analysis with the monocle package to investigate the expression of genes associated with cell growth and tumor transformation, and to predict the developmental trajectories of T cells. Results All four AE patients were female, with a mean age of (25.00 ± 9.06) years, and there were three cases from Jiuzhi County, Golog Tibetan Autonomous Prefecture and one case from Chengduo County, Yushu Tibetan Autonomous Prefecture, Qinghai Province. The viability of single-cell samples from eight liver specimens was 90.41% to 96.33%, and a total of 81 763 cells were analyzed, with 19 cell types annotated. Of these cell types, 13 were immune cells (87.60%), and T cells (33.13%), neutrophils (15.40%), and natural killer cells (11.92%) were the three most common cell types. Re-clustering of 27 752 T cells and proliferative T cells identified 10 distinct T cell subtypes, with CD8⁺ cytotoxic T cells (23.43%), CD8⁺ naive T cells (12.80%), and CD4⁺ effector memory T cells (17.73%) as dominant cell types. The proportions of T helper 2 (Th2) cells (5.19% vs. 3.63%; χ² = 38.35, P < 0.01) and CD4⁺ effector memory T cells (21.59% vs. 13.67%; χ² = 244.70, P < 0.01) were significantly higher in liver specimens in the PL group than in the DL group, and the proportion of CD4⁺ helper T cells was significantly lower in the PL group than in the DL group (7.50% vs. 14.75%; χ² = 330.52, P < 0.01). KEGG pathway analysis revealed that Th2 cells were significantly enriched in cell apoptosis and multiple cancer-associated pathways, and CD4⁺ effector memory T cells were significantly enriched in the regulation of cytokines and chronic inflammation, while CD4⁺ helper T cells were significantly enriched in immune responses regulation. Trajectory analysis of T cells showed that CD4⁺ helper T cells were at an earlier developmental stage relative to Th2 cells and CD4⁺ effector memory T cells, and the expression of inhibitor of DNA binding 3 (ID3), thioredoxin interacting protein (TXNIP), Bcl2-associated athanogene 3 (BAG3) and heat shock protein family B (small) member 1 (HSPB1) genes appeared a tendency towards a decline over time. Conclusions CD4⁺ effector memory T cells and CD8⁺ cytotoxic T cells are primary interacting cells in the liver specimens of AE patients. Reduced expression of Th2 cells and CD4⁺ helper T cells contributes to an inhibitory immune microenvironment, which promotes immune evasion by Echinococcus multilocularis, and Th2 cells are significantly enriched in multiple cancer-associated pathways, which may be linked to the invasive growth of E. multilocularis.

Objective This study aims to establish an approach to integrate autonomous maximal smile(AMS)3D facial image with digital 3D dental models to demonstrate the digital orthodontic set-up in the 3D facial context.Methods Using Geomagic Studio software,the AMS 3D facial image and pre-treatment dental model were manually and globally registered.Subsequently,the pre-treatment dental model was substituted with the predicted post-treatment dental model.The intraoral region of the AMS 3D facial image was removed,achieving a conjunctive display of the AMS 3D facial image and the post-treatment dental set-up.The distances between four groups of corresponding landmark pairs on the AMS 3D facial image and the pre-treatment dental set-up were calculated,and the accuracy of the registration operation was evaluated by paired t-test.Results The novel approach effectively facilitated the integration of AMS 3D facial images with the pre-treatment and predicted post-treatment 3D dental models.The average distances between the pairs of points were(1.19±0.55)mm and(1.55±0.59)mm for the two registrations,respectively.Notably,no statistically significant difference was observed be-tween the two measurements(P>0.05),indicating a high agreement(intraclass correlation coefficient=0.914).Conclu-sion This study established an approach to integrate AMS 3D facial images with digital 3D dental models.Through this approach,the digital orthodontic set-up design can be displayed in the context of a 3D facial image,which may help to improve the quality of outcome set-up in digital orthodontics,such as clear aligner therapy.

Echinococcosis is an age-old disease that causes serious damage to the animal husbandry and the human health perennially. As a newly discovered species of Echinococus, E. shiquicus has the potential public health significance and could be a potential parasitic zoonosis. In this review, its etiology, life cycle, epidemiology, detection and diagnoses, public health etc. are discussed or summarized. Also, a series of comparisons among E. granulosus, E. multilocularis and E. shiquicus are made.

Objective To investigate the inhibition of aldose reductase (AR) and antioxidant activity of fractions of ethyl acetate extract from Toona Sinensis seeds. Methods The antioxidant activities of fractions of ethyl acetate extract from Toona Sinensis seeds was evaluated with total antioxidant capacity and DPPH?free radicals scavenging. The inhibition and inhibition types of AR were investigated and the relationship of antioxidant activity and AR inhibitory activity was analyzed. Results Fractions of ethyl acetate extract from Toona Sinensis seeds exhibited antioxidant activity, total antioxidant capacity ordered by Fr.B>Fr.A>Fr.D>Fr.C. The DPPH?free radicals scavenging were ordered by Fr.A>Fr.B>Fr.D>Fr.C. The fractions exhibited AR inhibitory activity and the order was Fr.B>Fr.A>Fr.C>Fr.D. The inhibition mechanism of Fr.B was noncompetitive inhibition and IC50 was 0.401 mg/ml. The AR inhibitory activity of fractions was related to antioxidant activity with correlation index over 0.9. Conclusion This study will provide theoretical basis for exploitation of Toona Sinensis seeds.

Objective To optimize the conditions of extraction process of polysaccharides from seeds of Toona sinensis; To preliminary determinate the antioxidant activity in vitro. Methods The content of polysaccharides from Toona sinensis was chosen as evaluation index; the extraction time, material liquid ratio, and extraction times were chosen as factors; L9(34) orthogonal design was used to optimize extraction process; antioxidant activity of polysaccharides from Toona sinensis was investigated by the total reducing power and 1,1-diphenyl-2-picryhydrazyl (DPPH) method. Results From the statistical data of processing, the optimal extracting conditions were as follows:liquid to material was 1:12, extraction time was 120 min, and extracted for 3 times. Polysaccharides from seeds of Toona sinensis had certain reducing capacity and had better scavenging ability on DPPH? and the scavenging rate significantly increased with the concentration. The effect was simulated by curve equation. Conclusion The process is simple, feasible, stable and reliable and can be used for the small-scale study on extraction of polysaccharides from seeds of Toona sinensis. Polysaccharides from seeds of Toona sinensis have antioxidant activity.

Objective To preliminary establish the process condition of extracting polysaccharides from Allii tuberosi semen.Methods The study was carried out with the content of Semen allii tuberosi polysaccharides as evaluation index, the material liquid ratio, extraction time, and extraction times as observation factors, and L9 (34) orthogonal design as extraction craft.The physical and chemical properties and IR spectroscope were used to identify the extract.Results The optimum preparation condition was determined as: using 12 times water, extracting 3 times, and extracting 160 minutes.According to the results of purple ring reaction and infrared spectrum, the extract from Allii tuberosi semen has polysaccharides.From the statistical processing of data we found when polysaccharides from Semen allii tuberosi has 50％ reducing power, the value of EC50 is 10.2 mg/ml.Conclusion The process is reasonable and suitable and can be used for the extraction of polysaccharides from Allii tuberosi semen, and can provide the theoretical basis for the research and application.

Angioplasty, Balloon, Coronary ; Heart Injuries ; drug therapy ; etiology ; Humans ; Thrombin ; administration & dosage

Objective To investigate the importance of nursing cooperation in the operation of middle cerebral artery aneurysm ( MCAA) microsurgical clipping. Methods We retrospectively analyzed 202 cases ( male 103 cases, female 99 cases) of MCAA patients who were underwent microsurgical clipping surgery ( from January 1997 to December 2013), and the importance of nursing cooperation in the process were analyzed. A total of 242 aneurysms were found during surgery of 212 cases underwent craniotomy clipping, in which 215 cases were MCAA, and 2 cases underwent autologous dura wrapping, except one unbroken MCAA case was embolism. Results All patients in this group underwent Yasargil′s pterional trans-sylvian approach, 212 MCAA surgery were successfully clipped. 174 cases were clipped without rupture (81. 3%), while rupture (18. 7%) occurred in 40 patients during surgery. All patients had been treated with controlled hypotension and intracranial hypotension, through timely blood transfusion, infusion and other response measures to ensure the successful completion of surgery. Conclusions It can help will the operation completed smoothly and improve surgical effects by personalized utilizing of controlled hypotension, brain tissue relaxation techniques and other measures in microsurgical clipping of MCAA, as well as good nursing cooperation during the process of aneurysms rupture.

This review focuses on biological characteristics of Echinococcus f elidis including molecular genetic markers , species status ,host coverage ,geographical distribution ,epidemiological implications ,phylogeny ,and evolution .The molecular genetic markers are involved in mitochondrial cox1 (cytochrome C oxidase subunit 1) and nad1 (nicotinamide adenine dinucle-otide dehydrogenase subunit 1) genes ,nuclear protein-coding gene sequences such as elp (ezrin-radixin-moesin-like protein) , e f1a (elongation factor 1 alpha) ,pepck (phosphoenolpyruvate carboxykinase ) ,pold (DNA polymerase delta ) ,and ribosome RNA gene sequences such as ITS1 and 18S rRNA .The establishment of species status is based on distinctly discriminated mor-phological characteristics such as hooks on the rostrum with apparent rugae ,the special definitive host (lions) ,and divergence of DNA sequences ,etc .between E . f elidis and other Echinococcus species .In brief ,the review has provided researchers and ex-perts in the field of echinococcosis with fundamental background knowledge and guidelines for future research directions ,clinical and epidemiological investigations ,and prevention and control of echinococcosis .