Objective To check the neutrophil count and the expression of cell surface adhesion molecule,lymphocyte function associated antigen?1(LFA?1)in peripheral neutrophils in severe preeclamptic patients and normal pregnant women in order to investigate the correlation of neutrophil activation with preeclampsia. Methods Totally 28 pregnant women in the department of gynecology and obstetrics in Shengjing Hospital from No?vember 2013 to January 2014 were included in the study,and divided into the severe preeclampsia group(n=14),and the control group(normal pregnant women,n=14). There was no statistically significant difference in age and gestational weeks between the two groups. The expression of LFA?1 in peripheral neutrophils was detected by flow cytometry in the two groups. Mean blood pressure(MBP)was measured in the severe preeclamptic group,and the correlation of MBP with expression of LFA?1 was analyzed. Results The neutrophil count was 8.40±2.23 ×109/L in the severe pre?eclamptic group,significantly higher than(6.71±1.58)×109/L in the control group,(P<0.05). The positive rate of LFA?1 in peripheral neutrophils was 63.25±38.025%in the severe preeclamptic patients,significantly higher than 8.32±38.65%in the control group(P<0.05). The expression lev?el of LFA?1 in peripheral neutrophils was significantly correlated with mean blood pressure in severe preeclamptic patients(r=0.64,P=0.013). Conclusion The neutrophil count and the expression of LFA?1 in peripheral neutrophils were significantly increased in severe preeclamptic pa?tients compared to normal pregnant women,and significantly correlated with severity of preeclampsia,suggesting that neutrophil activation participat?ed in the pathogenesis of preeclampsia.

Objective To discuss the application of spectral CT imaging in evaluating the early therapeutic response of 125I seed interstitial brachytherapy for pancreatic carcinoma in experimental nude mice.Methods BxPC-3 human pancreatic cancer cell xenografts were subcutaneously inoculated at the dorsal part of the limbs in 16 BABL/c nude mice. When the tumor developed to the size of 1-1.5 cm, the tumor-bearing mice were randomly divided into the study group (n=8,receiving implantation of 125I seeds of 1.0 mCi) and the control group (n=8,receiving implantation of ghost shell particles of 0 mCi). Two weeks after the procedure, plain spectral CT scan as well as enhanced multiphase (10 s, 25 s and 60 s) spectral CT scan were performed to obtain multi-phasic image series. The contrast-to-noise ratio (CNR) and iodine concentration (IC) inside the lesions were determined, and the normalized iodine concentrations (nIC) of tumor were thus obtained. Immunohistochemical staining of tumor was used to measure microvessel density (MVD) within the tumor;the correlation between nIC and MVD was analyzed. Results The lesion's nICs measured on each of three phases (10 s,25 s and 60 s) in the study group were lower than those in the control group, the differences were statistically significant (P<0.05). MVD count in the study group was lower than that in the control group, the difference was statistically significant (t=5.957,P<0.01). A parallel linear correlation existed between nIC obtained from each phase of three phases and MVD count (r=0.63,P<0.000 1;r=0.51,P=0.002;and r=0.48,P=0.001 7 for 10 s, 25 s and 60 s phases respectively). Conclusion Spectral CT imaging is an effective method for evaluating the therapeutic effect of 125I seed interstitial brachytherapy for pancreatic carcinoma of experimental mice.

Objective To investigate the regulation of T cells in the process of liver regeneration using a model of mice after 70% liver resection.Methods We performed 70% hepatectomy in T-cell-deficient mice and control mice.The liver mass and body mass ratio, BrdU infiltration level, proliferating cell nuclear antigen (PCNA),expression of M phase marker protein p-HDAC3, and serum transaminase levels were measured.Results The recovery of liver mass and body mass ratio of thymus-deficient mice occurred significantly later than that of control mice.The peak time of BrdU infiltration levels and the expression of PCNA and p-HDAC3 in T-cell-deficient mice were later than in control mice, but the degree of liver injury was lower.Conclusion T cells are involved in the regulation of liver regeneration, and the absence of T cells delays the process of liver regeneration.

Objective To assess the clinical value of MPI with ATP intervention (ATP-MPI) in the diagnosis of coronary heart disease (CHD).Methods To collect published literatures on ATP-MPI studies for the diagnosis of CHD,the PubMed,the Excerpta Medica Database (EMbase),Chinese Biomedical Literature Database (CBMdis),Vip and China National Knowledge Infrastructure (CNKI) databases were searched with computer and manual method since the data were available until to 2014.According to the inclusion and exclusion criteria,the literatures were screened to extract data by two independent evaluators.Meta-analysis was conducted with Stata 12.0 software.Results A total of 11 studies involving 968 patients were included.In patient study,which included 9 literatures and 933 patients,the Se,Sp,LR+,LRand 95％ CI of ATP-MPI diagnosis of CHD were 0.89 (0.82-0.94),0.84 (0.74-091),6.00 (3.25-9.91),0.13 (0.07-0.22),respectively.The diagnostic odds ratio (DOR) was 45.04.The AUC of summary ROC (SROC) curve was 0.94.In the coronary artery study,which included 6 literatures and 1 079 coronary arteries,the Se,Sp,LR+,LR-and 95％ CI of ATP-MPI diagnosis of coronary stenosis were 0.83 (0.71-0.91),0.92 (0.86-0.95),10.00 (5.58-16.99),0.18 (0.09-0.34),respectively.The DOR was 53.24 and the SROC AUC was 0.94.Conclusion ATP-MPI has a significant value in the diagnosis of CHD.

Chronic hepatitis B (CHB) is one of the most important infectious diseases around the world. Currently, interferon and nucleos(t)ide analogues are the main drugs for CHB and have good therapeutic efficacy, but the ultimate goal of eliminating hepatitis B virus (HBV) in human body has not been achieved. Therefore, it is of vital importance to explore new therapeutic strategies and develop new drugs for CHB. Persistent HBV infection is closely associated with human body′s immune status, and studies have shown that immunotherapy may help to cure CHB. With reference to CHB patients′ immune status, this article reviews the research advances in new immunotherapeutic strategies including Toll-like receptor agonists, cell therapy, and therapeutic vaccines.

OBJECTIVEThis study was conducted to determine the three-dimensional structure, course, and adjacent structure of the mandibular incisive canal (MIC) to ensure safety of dental implantation by cone beam CT (CBCT).

METHODSThe CBCT images of the bilateral mandibles of 80 patients were retrospectively studied. The diameters of the mandibular incisive canal and the location in the adjacent structure were determined, including the distances between the MIC and the buccal and lingual plates of the alveolar bone, the inferior border of the mandible and the tooth apex, and the horizontal plane of the mental foramen.

RESULTSApproximately 78.75% (63 cases) of the CBCT scans showed the presence of the MIC with a mean diameter of 1.21 mm +/- 0.29 mm. The distances from the canal to the inferior border of the mandible and to the tooth apex were 7.82 mm +/- 1.86 mm and 7.24 mm +/- 2.82 mm, respectively. The distances between the canal and the buccal plate as well as between the canal and the lingual plate of the alveolar bone were 3.80 mm +/- 1.37 mm and 4.45 mm +/- 1.34 mm, respectively. The distance from the canal to the horizontal plane of the mental foramen was 5.62 mm +/- 2.21 mm.

CONCLUSIONCBCT could clearly show the three-dimensional structure, course, and adjacent structure of the MIC. Therefore, this technique could provide guidance for dental implantation in clinical applications.

It has been well established that immune surveillance plays critical roles in preventing the occurrence and progression of tumor. More and more evidence in recent years showed the host anti-tumor immune responses also play important roles in the chemotherapy and radiotherapy of cancers. Our previous study found that tumor- targeting therapy of anti-HER2/neu mAb is mediated by CD8(+) T cell responses. However, we found here that enhancement of CD8(+) T cell responses by combination therapy with IL-15R/IL-15 fusion protein or anti-CD40, which are strong stimultors for T cell responses, failed to promote the tumor therapeutic effects of anti-HER2/neu mAb. Analysis of tumor microenviornment showed that tumor tissues were heavily infiltrated with the immunosuppressive macrophages and most tumor infiltrating T cells, especially CD8(+) T cells, expressed high level of inhibitory co-signaling receptor PD-1. These data suggest that tumor microenvironment is dominated by the immunosuppressive strategies, which thwart anti-tumor immune responses. Therefore, the successful tumor therapy should be the removal of inhibitory signals in the tumor microenvironment in combination with other therapeutic strategies.
Animals ; Antibodies, Monoclonal ; immunology ; therapeutic use ; Breast Neoplasms ; drug therapy ; immunology ; pathology ; Cell Line, Tumor ; Female ; Humans ; Immune Tolerance ; immunology ; Mice ; Mice, Inbred BALB C ; Neoplasm Transplantation ; Receptor, ErbB-2 ; immunology ; Tumor Microenvironment ; immunology

Objective To investigate the current status of clinical nurses'core competency in palliative care,analyze the potential characteristics of different types of nurses in palliative care,and provide references for formulating intervention plans for nurses'core competence in palliative care.Methods The oncology nurses'palliative care core competence questionnaire was used in a hospital in Xiamen in December 2022 to conduct a questionnaire survey on 205 clinical nurses.Data analysis was performed using SPSS 26.0 and Mplus 8.3.Results The average score of core competence in palliative care for clinical nurses was(125.72±31.93),and two potential categories were identified:The low core competence group and the high core competence group,accounting for 30.7％and 69.3％respectively.The results indicated that whether to participate in palliative care training and whether to discuss death with patients were the influencing factors of the potential profile category of nurses'core competence in palliative care(P＜0.05).Conclusion The core competence of clinical nurses in palliative care is at a medium level,and there are two potential profile categories:The low core competence group and the high core competence group.Nursing managers should adopt precise measures to enhance the core competence of palliative care for clinical nurses based on different potential categories of influencing factors.

Objective:This study aimed to evaluate the global research landscape, identify trends, and determine hotspots concerning hepatoma recurrence post-liver transplantation.Methods:We conducted a bibliometric analysis usinga systematic search was conducted in the Web of Science Core Collection database from Jan. 1992 to Oct. 2023 to identify relevant articles on hepatoma recurrence after liver transplantation. Articles were selected based on inclusion and exclusion criteria and analyzed for publication trends by country/region, journal, author, institution, citation, and keyword. Visualization tools such as Citespace, VOSviewer, and Bibliometric.com were utilized for statistical analysis, identification of emerging trends, and clustering of keyword co-occurrence.Results:Out of 4,936 articles retrieved, 1,189 were included in the final analysis. There was a notable increase in publications on hepatoma recurrence following liver transplantation from 1992 to 2021, peaking in 2021 both globally (n=103) and nationally (n=32). China has the largest number of publications in this field (n=308), maintaining significant collaboration with the United States, South Korea, Japan, Canada. 'Liver Transplantation’ journal had the highest number of publications (n=113). Zhejiang University was the leading institution (n=74), with Academician Zheng Shusen being the most prolific scholar (n=76 publications). Citation emergence detection found that Italian scholar Mazzaferro's Predicting survival after liver transplantation in patients with hepatocellular carcinoma beyond the Milan criteria: a retrospective, exploratory analysis published on The Lancet Oncology in 2009 had the highest burst strength (36.98). Five bursting keywords were identified: alpha fetoprotein, model, validation, sorafenib, and risk. Cluster analysis of keyword co-occurrence revealed five primary research themes: the medication for hepatocellular carcinoma recurrence after liver transplantation, recipient selection criteria, prognostic factors, development and validation of recurrence prediction model, and local treatments for hepatocellular carcinoma.Conclusions:The study underscores rapid advancements in the research on hepatocellular carcinoma recurrence post-liver transplantation over the past three decades, with significant contributions from Chinese scholars, particularly from Zhejiang University and Academician Zheng Shusen. The evolving research hotspots have shifted from transplantation experiences and recipient selection criteria to early post-transplant recurrence risk prediction and therapeutic strategy development.

Endovascular mechanical thrombectomy (EMT) has become the main treatment of acute ischemic stroke, but the pathological study of thrombi retrieved with EMT is still very limited. This article reviews the routine staining, special components, expression of immune factors, electron microscopic morphology, imaging features of the pathological components of thrombi retrieved with EMT, and their correlation with the etiological differentiation and outcomes of stroke.