Intravascular large B-cell lymphoma (IVLBCL), a rare subtype of non-Hodgkin lymphoma, is classified as an independent subtype of extranodal diffuse large B-cell lymphoma (DLBCL) in the 2008 World Health Organization (WHO) Classification (Turner et al., 2010). The 5th edition of the World Health Organization (WHO 2022) classification of hematolymphoid tumors retains this subtype (Alaggio et al., 2022). IVLBCL, which is characterized by neoplastic lymphocyte proliferation within the lumen of small blood vessels, tends to invade organs, such as the nervous system, skin, bone marrow (BM), and lung (D'Angelo et al., 2019; Satoh et al., 2019; Vásquez et al., 2019; Fukami et al., 2020).
Humans ; Antineoplastic Combined Chemotherapy Protocols/therapeutic use* ; Lymphoma, Large B-Cell, Diffuse/drug therapy* ; Vascular Neoplasms/therapy*

Objective To investigate the changes of OAT expression in bone cells in chronic renal failure(CRF)and involved mechanism,and to explore the effect of OAT expression on bone metabolism.Methods Ra-ndomly divide the rats into a control group(n=6)and a model group(n=6).The model group established a rat chronic renal failure model using"single nephrectomy+adenine gavage"method,and the red blood cell(RBC)and hemoglobin(HGB)of the rat body were measured using a blood routine analyzer;Measure indicators such as creatinine(Cr),urea nitrogen(BUN),uric acid(UA),blood calcium(Ca2+),and blood phosphorus(P3+)using a fully automated biochemical analyzer;Pathological examination of rat kidneys;X-ray examination of rat tibia;Immunohistochemical examination of bone tissue OAT1 level.Results The bone density of the model group rats is lower than that of the control group;The calcium and phosphorus metabolism of rats in the model group was in metabolic disorder,and the OAT1 value of bone tissue binding was much lower than that of the control group(P= 0.0018),which was statistically significant.(P=0.0018)Conclusion Chronic renal failure affected the binding ability of OAT1 in bone tissue,leading to the metabolic disorder for calcium absorption and phosphorus metabolism,thus aggravating renal osteodystrophy(P<0.05).

Informed consent is an important ethical symbol in clinical research,and researchers have the responsibility to fully inform participants of the research information before conducting clinical research.However,it is difficult to obtain complete informed consent form participants or their guardians within a narrow treatment time period in clinical research conducted in emergency situations.Currently,in addition to traditional general informed consent,there are also reality-accepted informed consent,including exemption of informed consent,broad informed consent,and deferred informed consent.By introducing the origin and development process of deferred informed consent in clinical research,this paper sorted out the current application status of deferred informed consent,proposed the prerequisites for applying deferred informed consent in emergency situations,and explored the issues that need to be noted during the application process of deferred informed consent.It is hoped to provide an ethical defense and ethical procedure for the application of deferred informed consent in clinical research in emergency situations.

Objective:To investigate the clinical characteristics of first-episode and recurrent acute hypertriglyceridemic pancreatitis (HTGP).Methods:The retrospective cohort study was con-ducted. The clinical data of 313 patients with HTGP admitted to 26 medical centers in China in the Chinese Acute Pancreatitis Clinical Research Group (CAPCTG)-PERFORM database from November 2020 to December 2021 were collected. There were 219 males and 94 females, aged 38(32,44)years. Of the 313 patients, 193 patients with first-episode HTGP were allocated into the first-episode group and 120 patients with recurrent HTGP were allocated into the recurrent group. Observation indica-tors: (1) propensity score matching and comparison of general data of patients between the two groups after matching; (2) comparison of severity and prognosis in the course of disease within 14 days between the two groups; (3) the association between recurrent HTGP and the risk of persistent organ failure (POF); (4) follow-up. Measurement data with normal distribution were represented as Mean± SD, and comparison between groups was conducted using the independent sample t test. Measurement data with skewed distribution were represented as M( Q1, Q3), and comparison between groups was conducted using the Wilcoxon rank sum test. Count data were expressed as absolute numbers or percentages, and comparison between groups was conducted using the chi-square test. Comparison of ordinal data was conducted using the Wilcoxon rank sum test. The Kaplan-Meier method was used to plot the cumulative recurrence rate curve and Log-Rank test was used for survival analysis. The Logistic regression model was used for multivariate analysis, and continuous variables were converted into categorical variables according to the mean value or common criteria. Propensity score matching was performed by 1∶1 nearest neighbor matching method, with caliper value of 0.02. Paired t test or Wilcoxon rank sum test and McNemar′s test were used for comparison between matched groups. Results:(1) Propensity score matching and comparison of general data of patients between the two groups after matching. Of the 313 patients,208 cases were successfully matched, including 104 cases in the first-episode group and 104 cases in the recurrent group. After propensity score matching, there was no significant difference in demographic characteristics, severity of illness scores and laboratory test between the two groups ( P>0.05). The elimination of gender, acute physiology and chornic health evaluation (APACHE) Ⅱ score, computed tomography severity index score, systemic inflammatory response syndrome score, sequential organ failure assessment score, apolipoprotein E, C-reactive protein, creatinine, lactic acid dehydrogenase, procal-citonin confounding bias ensured comparability between the two groups. (2) Comparison of severity and prognosis in the course of disease within 14 days between the two groups. There were signifi-cant differences in POF and local complications between the first-episode group and the recurrent group ( P<0.05). (3) The association between recurrent HTGP and the risk of POF. Results of uncor-rected univariate analysis showed that there was no association between recurrent HTGP and the risk of POF ( odds ratio=0.78, 95% confidence interval as 0.46-1.30, P>0.05). Results of multivariate analysis after adjusting for covariates such as gender, age, APACHE Ⅱ score, C-reactive protein, triglyceride and total cholesterol showed that compared with first-episode HTGP, recurrent HTGP was associated with a higher risk of POF ( odds ratio=2.22, 95% confidence interval as 1.05-4.71, P<0.05). Results of subgroup analysis showed that age<40 years was associated with an increased risk of POF ( odds ratio=3.31, 95% confidence interval as 1.09-10.08, P<0.05). (4) Follow-up. Twelve of the 313 patients died during hospitalization, including 9 cases in the first-episode group and 3 cases in the recurrent group. The rest of 301 surviving patients, including 184 cases in the first-episode group and 117 cases in the recurrent group, were followed up for 19.2(15.5, 21.9)months. Results of follow-up showed that for 184 survived patients of the first-episode group, 164 cases were followed up and 24 cases experienced recurrence, for 117 survived patients of the recurrent group,29 cases experienced recurrence, showing a significant difference between the two groups ( χ2=4.67, P<0.05). Conclusion:Compared with first-episode HTGP, patients with recurrent HTGP are more prone to POF and local complications, and are more prone to recurrence after discharge. The risk of POF in recurrent HTGP patients is 2.22 times that of those with first-episode, and the risk is higher in patients with age <40 years.

A simple, fast, and visual method for detecting antibodies against peste des petits ruminants virus (PPRV) using colloidal gold strips was developed. In this study, the pET-32a-N was transformed into Escherichia coli Rosetta (DE3) for expression. Hybridoma cell lines were generated by fusing SP2/0 myeloma cells with splenocytes from immunized mice with the expressed and purified N protein of PPRV. The PPRV N protein was labeled with colloidal gold particles as the gold-labeled antigen. The N protein served as the gold standard antigen and as the test (T) line-coated antigen, while the monoclonal antibody served as the quality control (C) line-coated antibody to assemble the colloidal gold immunochromatographic test strips for detecting antibodies against the N protein of PPRV. Hybridoma cell line designated as 1F1 was able to stably secrete the monoclonal antibody against the N protein of PPRV. The titer of 1F1 monoclonal antibody in ascites was 1:128 000 determined by indirect enzyme-linked immunosorbent assays (ELISA), and the immunoglobulin subtype of the monoclonal antibody was IgG1, with kappa chain. The obtained monoclonal antibody was able to specifically recognize the N protein of PPRV, as shown by Western blotting and indirect immunofluorescent assay (IFA). The developed colloidal gold test strip method was able to detect PPRV antibodies specifically, and there was no difference between different batches of the test strips. Testing of a total of 122 clinical sera showed that the compliance rate of the test strip with ELISA test was 97.6%.The test strip assay developed in this study has good specificity, reproducibility, and sensitivity, and it can be used for the rapid detection of PPRV antibodies.
Animals ; Mice ; Peste-des-Petits-Ruminants/prevention & control* ; Antibodies, Monoclonal ; Reproducibility of Results ; Peste-des-petits-ruminants virus ; Antibodies, Viral ; Enzyme-Linked Immunosorbent Assay ; Goats

Objective:To observe the changes of pulmonary function and its influential factors in residents of a rural community and investigate the prevention and control measures.Methods:A survey was made in residents from a rural community in Qingdao who received public health services from September 2017 to December 2019. The demographic data, behavioral and medical history information were collected. Forced vital capacity and forced expiratory volume in one second were measured. The factors that affect lung function were analyzed using univariate analysis and multivariate analysis.Results:This survey involved 5184 residents consisting of 2199 (42.4%) males and 2985 (57.6%) females. 1322 (25.5%) residents had pulmonary dysfunction. Univariate analysis showed that residents aged ≥ 60 years had a higher risk for developing pulmonary dysfunction than residents aged < 60 years (26.1% vs. 14.3%, χ2 = 19.34, P < 0.001), and male residents had a higher risk for developing pulmonary dysfunction than female residents (32.9% vs. 20.0%, χ2 = 110.74, P < 0.001). With the increase in body mass, the incidence of pulmonary dysfunction gradually decreased. The proportion of residents with pulmonary dysfunction with low body mass was higher than that in residents with normal body mass and high body mass (43.4% vs. 27.8% or 22.8%, χ2 = 8.86, 17.63, P = 0.003, < 0.001). The proportion of residents with pulmonary dysfunction was higher in those with a history of chronic bronchitis, bronchial asthma, or obstructive pulmonary disease than in those without such a history (68.3% vs. 23.2%) χ2 = 263.33, P < 0.001). The proportion of residents with pulmonary dysfunction was significantly higher in smokers, whether or not had quit smoking than in non-smokers (35.1%, 36.3% vs. 22.8%, χ2 = 48.83, 86.46, both P < 0.001). The proportion of residents with the normal pulmonary function was not related to the exposure history of dust and chemical poisons and the family history of respiratory diseases ( χ2 = 0.38, 2.29, P = 0.535, 0.130). Multivariate analysis showed that age ≥ 60 years, male sex, low body mass, smoking, and a history of respiratory system diseases were the independent risk factors for pulmonary dysfunction. Among smokers, the number of cigarettes smoked was higher in smokers with pulmonary dysfunction than those with normal pulmonary function ( t = -2.39, P = 0.009). Conclusion:There are many risk factors for pulmonary dysfunction. Primary medical service institutes should carry out pulmonary function testing and formulate targeted prevention strategies, which help realize early detection and treatment of chronic obstructive pulmonary disease.

Objective:To investigate the implementation status of sepsis hour-1 bundle strategy for patients with septic shock in emergency department.Methods:A total of 116 septic shock patients admitted to the emergency department from January 2020 to December 2020 were included in this prospective study, and the implementation of sepsis bundles and the clinical outcomes of patients were recorded.Results:Among 116 patients, 20 cases (17.2%) had lactic acid monitored within 1 h, 20 cases (17.2%) had blood culture before antibiotics, 82 cases (70.1%) received broad-spectrum antibiotics, 16 cases (13.8%) received fluid resuscitation ≥30 ml/kg, and 57 cases (49.1%) received vasoactive drugs during resuscitation. Finally, the sepsis hour-1 bundle strategy was fully implemented only in 13 cases (11.2%). Compared with the group with incomplete implementation of sepsis hour-1 bundle strategy, the volume of fluid recovery in the group with full implementation was significantly increased [33.7 (30.0,37.5) vs. 8.9(7.3,10.8) ml/kg, Z=-4.78, P<0.001], mean artery blood pressure significantly increased [70.0 (70.0,76.7) vs. 67.7 (61.7,76.7)mmHg(1 mmHg=0.133 kPa) , Z=-2.00, P<0.001], and lactic acid significantly decreased [3.0 (2.0,3.2) vs. 4.4 (3.7,7.2) mmol/L, Z=-2.76, P=0.006]. However, there were no significant differences in ICU mortality, in-hospital mortality and 28-day mortality between the two groups ( P>0.05). Conclusions:Septic shock patients in emergency department have poor compliance with the implementation of sepsis hour-1 bundle strategy, and relevant management training should be strengthened.

Objective:To investigate the survival and prognosis of B-lineage acute lymphoblastic leukemia (B-ALL) patients with TP53 mutation.Methods:The clinical data of 479 newly diagnosed B-ALL patients treated in the First Affiliated Hospital of Soochow University from January 2016 to December 2019 were retrospectively analyzed.Results:Among 479 B-ALL patients, 34 cases (7.1%) were positive for TP53 gene mutation, and a total of 36 TP53 mutations were detected, including 10 frameshift gene mutations (27.8%) , 23 missense mutations (63.9%) and 3 nonsense mutations (8.3%) . A total of 34 (94.4%) mutations were located in the DNA binding domain (exons 5-8) .The average number of mutated genes in patients with TP53 gene mutation (2.3) and the group without TP53 gene mutation (1.1) were statistically different ( P<0.001) . The proportion of Ph positive and Ph-like positive patients in the TP53 gene mutation negative group was significantly higher than that of the TP53 mutation positive group, and the difference was statistically significant ( P<0.001) . The 3-year OS and EFS rates of the TP53 gene mutation negative group were significantly higher than those of the TP53 gene mutation positive group. The differences in OS and EFS rates between the two groups were statistically significant ( χ2= 4.694, P = 0.030; χ2= 5.080, P= 0.024) . In the multivariate analysis, failure to achieve remission (CR) after one course of induction chemotherapy was an independent adverse prognostic factor affecting OS.Of the 34 patients with TP53 mutation, 16 underwent allogeneic hematopoietic stem cell transplantation (allo-HSCT) in the CR 1 state, and 2 patients with recurrence after transplantation obtained CR 2 after infusion of donor-derived anti-CD19 chimeric antigen receptor T (CAR-T) cells. Among the 11 patients with TP53 gene mutation who relapsed during consolidation chemotherapy, 6 received anti-CD19 CAR T cell therapy, 4 patients achieved remission and minimal residual disease (MRD) turned negative, followed by bridging allo-HSCT, and 2 of them sustained CR. Conclusion:Missense mutations are the most common in B-ALL patients with TP53 gene mutation, and the majority of mutations were located in the DNA binding domain. B-ALL patients with TP53 gene mutation should undergo allo-HSCT as soon as possible after CAR-T cell therapy has cleared the MRD after recurrence. B-ALL patients with TP53 gene mutation still have a higher recurrence rate after allo-HSCT, and the infusion of donor-derived CAR-T cells can achieve better sustained remission.

During the Huai′an Emergency Alliance meeting in January 2020, 143 emergency physicians from 21 level Ⅱ general hospitals in the region who attended the meeting, participated in a questionnaire survey on the knowledge of hour-1 bundle therapy for septic shock. The average score of the correct answer was (5.4±2.9), that for senior ( n=39), intermediate ( n=50) and primary ( n=54) physicians was (6.4±3.3), (6.0±3.2) and (3.4±1.9), respectively ( P<0.01); the rate of failure (≤5) for them was 28% (11/39), 40% (20/50) and 56% (30/54) ( P=0.03), respectively. The hour-1 bundle was summarized into four measures. For the measure of "blood culture", 95% of all levels emergency physicians answered correctly. In answering question of "liquid resuscitation and vasoactive drugs" the accurate rate was 15% (6/39), 24% (12/50) and 7% (4/54) for senior, intermediate and primary physicians; while in answering questions about other measures the overall correct rates were all around 50%. The correct rate for "time of implementing the bundle" in intermediate, senior and primary physicians was 60% (30/60), 59% (23/39) and 44% (24/54); for "monitoring lactate timing" in intermediate, senior and primary physicians was 64% (32/50), 80% (31/39) and 65% (35/54); for the target value of "MAP" was 68% (34/50), 62% (24/39) and 50%(27/54); for the "use time of vascular active drug" was 50% (25/50), 46% (18/39) and 17% (9/54), respectively. The survey suggested that the knowledge of hour-1 bundle therapy for septic shock among emergency physicians in Huai′an secondary general hospitals are insufficient, and relevant training should be strengthened.

Objective: To explore the effect of horticultural therapy on the rehabilitation of patients with depression in hospital. Methods: A total of 80 cases with depression who met the inclusion criteria were selected from the Third People′s Hospital of Huzhou City from January 2017 to December 2017. We used random-number methods to classify patients into either the intervention group or the control group with 40 cases in each group. While the two groups both received conventional antidepressant drugs, and psychiatric care routine and conventional rehabilitation training. Patients in the intervention group also attended horticultural therapy, the treatment period lasted for 4 weeks. The two groups were measured by HAMD and IPROS to compare the clinical symptoms and rehabilitation effects, the before of the 4th week and the end of the 4th week after treatment. Results: There was no statistically significant difference in HAMD score before the intervention among two groups (P >0.05). The HAMD score in the two group were both lower at the end of the 4th week. However, there was statistically significant difference in HAMD score among the two groups (t=5.458, P <0.01), the score of the intervention group was 12.11±2.76, which was significantly lower than that of the control group 15.54 ±2.86. There was no statistically significant difference in IPROS score between the two groups before treatment (P >0.05). After 4 weeks, there was statistically significant difference in IPROS score of intervention group and control group (t=4.168, P <0.01), the intervention group was 23.92±3.63, which was significantly lower than that of control group 34.85±4.17. Conclusions Horticultural therapy can effectively alleviate the clinical symptoms of patients with depression, promote rehabilitation, and improve social functions.