A 11-year old female patient with severe thalassemia, receipt a lentivirus-based cell and gene therapy (CGT) therapy in Shenzhen Children′s Hosptial on July 27th, 2021. At the two follow-up visits after discharge, patient were continuously tested positive for HIV screening through HIV Ag/Ab Combo assay (chemiluminescence Immunoassay), and the viral load results of HIV-1 nucleic acid testing (NAT) were both>5 000 copies/ml. The patient can be diagnosed with HIV infection according to the National Guideline for Detection of HIV/AIDS(2020 Revised Edition). The thorough investigation findings and supplementary experiment results indicated that the false-positive HIV-1 NAT results was caused by cross-reactivity between the target sites detected by conventional HIV-1 NAT reagents and the lentiviral vectors fragments integrated into the genome of patient′s hematopoietic stem/progenitor cells. In conclusion, it is important for laboratories to select appropriate HIV-1 NAT testing platforms which won′t cause cross-reactivity for the testing of samples from patients who have been treated with HIV-derived vectors. It is also recommended to design and develop NAT testing platforms with multiple target regions labeled by different fluorescents for HIV NAT supplementation experiment to reduce the risk of false-positive diagnoses of HIV infection.

Objective:To compare the patient-reported outcomes and short-term clinical outcomes between robotic-assisted and laparoscopic-assisted radical gastrectomy for locally advanced gastric cancer.Methods:This single-center prospective randomized controlled trial was conducted in the Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University from October 2020 to August 2022. Patients with locally advanced gastric cancer who were to undergo radical gastrectomy were selected and randomly divided into two groups according to 1∶1, and received robotic surgery and laparoscopic surgery, respectively. Patient-reported outcomes and short-term clinical outcomes (including postoperative complications, surgical quality and postoperative short-term recovery) were compared between the two groups by independent sample t test, Mann-Whitney U test, repeated ANOVA, generalized estimating equation, χ2 test and Fisher′s exact test. Results:A total of 237 patients were enrolled for modified intention-to-treat analysis (120 patients in the robotic group, 117 patients in the laparoscopic group). There were 180 males and 59 females, aged (63.0±10.2) years (range: 30 to 85 years). The incidence of postoperative complications was similar between the robotic group and laparoscopic group (16.7% (20/120) vs. 15.4% (18/117), χ2=0.072, P=0.788). The robotic group had higher patient-reported outcomes scores in general health status, emotional, and social domains compared to the laparoscopic group, differences in time effect, intervention effect, and interaction effect were statistically significant (general health status: χ2 value were 275.68, 3.91, 6.38, P value were <0.01, 0.048, 0.041; emotional: χ2 value were 77.79, 6.04, 6.15, P value were <0.01, 0.014, 0.046; social: χ2 value were 148.00, 7.57, 5.98, P value were <0.01, 0.006, 0.048). However, the financial burden of the robotic group was higher, the differences in time effect, intervention effect and interaction effect were statistically significant ( χ2 value were 156.24, 4.08, 36.56, P value were <0.01, 0.043,<0.01). Conclusion:Compared to the laparoscopic group, the robotic group could more effectively relieve postoperative negative emotions and improve recovery of social function in patients.

Objective To investigate the effects of remifentanil and dexmedetomidine controlled hypotension on coagulation function,cerebral oxygen metabolism and amino acid neurotransmitter levels in elderly patients undergoing orthopedic surgery.Methods The elderly patients who underwent lower extremity orthopedic surgery were divided into group A(given dexmedetomidine for hypotension),group B(given remifentanil for hypotension)and group C(given remifentanil combined with dexmedetomidine for hypotension)according to different anesthetic drugs.Systolic blood pressure(SBP),diastolic blood pressure(DBP)and heart rate(HR)were compared among the 3 groups.Cerebral oxygen metabolism[arterial oxygen content,(CaO2),oxygen saturation of internal jugular vein(SjvO2),oxygen content of internal jugular vein(CjvO2)],coagulation function[activated partial thromboplastin time(APTT),prothrombin time(PT),thrombin time(TT),plasma fibrinogen(FIB)],amino acid neurotransmitters[glutamic acid(Glu),aspartate(Asp),gamma-aminobutyric acid(GABA)]were compared,and the occurrence of adverse drug reactions during the trial were compared.Results At 12 h after anesthesia,the APTT of group A,group B and group C were(17.26±2.77),(17.37±2.92)and(31.11±4.74)s,respectively.GABA were(18.74±2.71),(19.22±2.60)and(23.37±2.59)mmol·L-1,respectively.3 min after withdrawal,CaO2 in group A,group B and group C were(139.31±9.03),(140.90±8.70)and(131.75±10.11)mL·L-1,respectively;SjvO2 were(63.59±2.23)％,(63.40±2.44)％and(68.82±3.36)％,respectively.The above indexes of group C were compared with those of group A and group B,and the differences were statistically significant(all P＜0.05).The incidence of adverse drug reactions in group A,B and C were 12.82％,27.50％and 7.32％,respectively.The incidence of adverse drug reactions in group C were lower than that in group A and group B(P＜0.05).Conclusion Remifentanil combined with dexmedetomidine for controlled hypotension in elderly orthopedic surgery has better blood pressure control effect,can improve postoperative coagulation function,maintain cerebral oxygen metabolism balance,reduce cognitive function injury and anesthesia adverse drug reactions.

Objective:To compare the patient-reported outcomes and short-term clinical outcomes between robotic-assisted and laparoscopic-assisted radical gastrectomy for locally advanced gastric cancer.Methods:This single-center prospective randomized controlled trial was conducted in the Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University from October 2020 to August 2022. Patients with locally advanced gastric cancer who were to undergo radical gastrectomy were selected and randomly divided into two groups according to 1∶1, and received robotic surgery and laparoscopic surgery, respectively. Patient-reported outcomes and short-term clinical outcomes (including postoperative complications, surgical quality and postoperative short-term recovery) were compared between the two groups by independent sample t test, Mann-Whitney U test, repeated ANOVA, generalized estimating equation, χ2 test and Fisher′s exact test. Results:A total of 237 patients were enrolled for modified intention-to-treat analysis (120 patients in the robotic group, 117 patients in the laparoscopic group). There were 180 males and 59 females, aged (63.0±10.2) years (range: 30 to 85 years). The incidence of postoperative complications was similar between the robotic group and laparoscopic group (16.7% (20/120) vs. 15.4% (18/117), χ2=0.072, P=0.788). The robotic group had higher patient-reported outcomes scores in general health status, emotional, and social domains compared to the laparoscopic group, differences in time effect, intervention effect, and interaction effect were statistically significant (general health status: χ2 value were 275.68, 3.91, 6.38, P value were <0.01, 0.048, 0.041; emotional: χ2 value were 77.79, 6.04, 6.15, P value were <0.01, 0.014, 0.046; social: χ2 value were 148.00, 7.57, 5.98, P value were <0.01, 0.006, 0.048). However, the financial burden of the robotic group was higher, the differences in time effect, intervention effect and interaction effect were statistically significant ( χ2 value were 156.24, 4.08, 36.56, P value were <0.01, 0.043,<0.01). Conclusion:Compared to the laparoscopic group, the robotic group could more effectively relieve postoperative negative emotions and improve recovery of social function in patients.

Background::Abnormal lipids are strong predictors of cardiovascular disease in type 1 diabetes mellitus (T1DM) and type 2 diabetes mellitus (T2DM). However, the potential associations of insulin resistance (IR) and beta-cell function (BCF) with abnormal lipids in newly diagnosed T1DM or T2DM patients are not fully understood.Methods::A cross-sectional survey of 15,928 participants was conducted. Homeostasis model assessment and postprandial C-peptide levels were used to estimate IR and BCF. A restricted cubic spline (RCS) nested in binary logistic regression was used to examine the associations of IR and BCF with abnormal lipids.Results::High triglyceride (TG), low high-density lipoprotein cholesterol, and high low-density lipoprotein cholesterol (LDL-C) accounted for 49.7%, 47.8%, and 59.2% of the participants, respectively. In multivariable analysis, high IR was associated with an increased risk of high TGs ( P for trend <0.001) in T1DM and is associated with an elevated risk of high TG and low HDL-C (all P for trend <0.01) in T2DM. Low BCF was not associated with risks of dyslipidemia in patients with T1DM or T2DM after adjustment for potential confounders. Conclusion::High IR had different associations with the risk of dyslipidemia in newly diagnosed T1DM and T2DM patients, suggesting that early treatment that improves IR may benefit abnormal lipid metabolism.

With continuous discovery of tumor immune targets and continuous changes in antibody research and development technology, antibody drugs are becoming more and more widely used in clinical practice. However, some targets are not only expressed on tumor cells, but also on red blood cells. Therefore, the clinical application of antibodies against the corresponding targets may interfere with the detection of blood transfusion compatibility, resulting in difficulty in blood matching or delay of blood transfusion. This consensus summarizes the current solutions for the interference of CD38 monoclonal antibody (CD38 mAb) in transfusion compatibility testing. After analyzing the advantages and disadvantages of different methods, polybrene and sulfhydryl reducing agents [dithiothreitol (DTT) or 2-mercaptoethanol (2-Me)], as a solution for CD38 mAb interference in blood compatibility testing, are recommended for Chinese patients, so as to eliminate blood transfusion interference produce by CD38 mAb and further provide a pre-transfusion workflow for clinicians and technicians in Department of Blood Transfusion.

The objective of this work was to develop a bioassay to quantify the antiplatelet aggregation activity of hirudo for quality evaluation and control. Antithrombin activity of hirudo extracted by high temperature decoction was determined by thrombin titration. Antiplatelet aggregation activity of hirudo was determined through pharmacodynamic experiments in vitro and in vivo using a bioassay we developed for quantifying inhibition of platelet aggregation. Methodological investigation was carried out and the titers of 12 batches of hirudo samples were determined. During the experiment, the disposal of animals is in accordance with the ethical standards of animal experiments. The results showed that the antithrombin activity of hirudo decocted at high temperature decreased significantly and almost lost its activity. Hirudo inhibited platelet aggregation and results in vivo and in vitro were consistent. These assays were employed to test 12 batches of hirudo. The results demonstrated that the biopotency of 12 batches was 113.49, 96.13, 121.22, 127.33, 83.48, 108.72, 131.41, 127.95, 76.90, 126.27, 132.89 and 573.53 U·mg^-1. The method was reliable and reproducible and can be used to assess the quality of hirudo.

Objective To establish a quantitative analysis method for determining 99mTc-HYNIC-PEG4-E[PEG4-c(RGDfK)]2 (99mTc-3PRGD2,a radioactive tumor agent)byγcounter, and to investigate the distribution of 99mTc-3PRGD2 in mice bearing with lung carcinoma xenograft. Methods The mice were divided into 4 normal groups and one blocking peptide group(control group). The 99mTc-3PRGD2(8μg/kg)was injected to mice bearing with lung carcinoma xenograft through the tail intravenous administration. Tissues of the normal mice were taken at 0.5,1,2 and 4 h. The control group were treated by 3PRGD2 and 99mTc-3PRGD2. The control mice were injected with the 3PRGD2 saline solution(2.5 mg/ml,0.2 ml)at 0.5 h earlier before the injection of 99mTc-3PRGD2. The tu?mor and organ tissues of the control mice were taken at 2 h. The radioactivity was detected by Gamma Counter. Results The radioac?tivity of 99mTc-3PRGD2 detected was high in the tumor and very low in brain. In addition,high radioactivity in kidneys and bladder sug?gested that the drug excreted by renal. Conclusion The results proved that the blocking peptide can competitively inhibit the combi?nation of 99mTc-3PRGD2 and integrinαvβ3 receptors.

Objective:To evaluate effects of Bushen Jianpi Recipe ( BSJP) on restoring of T cell exhaustion induced by persistent tuberculosis antigens in mice.Methods:The C57BL/6 mice were primed with BCG(5×106 CFU)and boosted with 20μg of Mycobacterium bovis BCG Purified Protein Derivative ( PPD ) once a week and lasted for 16 times to induce T cell exhaustion that happened in late stage of tuberculosis .BSJP was used to treat the mice with immune exhaustion for 3 weeks.Flow Cytometry was used to detect the numbers of CD 4+and CD8+T cells and PD-1 expression.ELISA was used to detect IL-2 and IFN-γsecretion.Bacteria load in lung tissue following BCG challeng was used to detect the protective capability of mice models .Results: Compared with the transient antigen stimulation group,the persistent antigen stimulation group had lower level of IFN-γand IL-2 secretions(P<0.01).The numbers of CD4+and CD8+T cells decreased and the level of inhibitory receptor PD-1 got higher(P<0.01).The protective efficacy against BCG challenging decreased ( P<0.01 ) .After treatment with BSJP , the production of cytokines IFN-γand IL-2 increased ( P<0.01 );the numbers of CD4+and CD8+T cells increased and PD-1 expression level on CD4+T cells decreased(P<0.01);the protective efficacy against BCG challenge increased (P<0.01).The results showed that BSJP can reduce the PD-1 expression,improve the IL-2 and IFN-γsecretion,and increase the protection against BCG challenge .Conclusion:Bushen Jianpi Recipe can restore T cell exhaustion induced by persistent tuberculosis antigen stimulation in mice , which gives a hope to overcome T cell exhaustion in tuberculosis with Chinese herbal in clinic.

Objective ToexploretheapplicationofVasoCT,astentimagingtechnique,instent-assisted coilaneurysmembolization.Methods Twentyconsecutivepatientswith23intracranialaneurysmswere treated with stent-assisted aneurysm embolization in the General Hospital of Armed Police Forces from December 2013 to November 2014 were enrolled. The patients performed VasoCT scan immediately after procedure. Then all the available images were used for stent-optimized reconstruction respectively. Under the XpertCT mode,the available images were observed with both volume imaging and maximum intensity projection. The available images were analyzed and they were divided into very clear,less clear,and not clearaccordingtothestentdevelopingclarity.Results Ofthe22aneurysmstreatedwithstent-assisted embolization,16 were occluded completely,6 were occluded partially. All the stents were expanded completely and were released to the expected locations;11 aneurysm stents developed clearly,9 developed less clearly,and 2didnotdevelopclearly.Conclusion VasoCTcanbeusedinthestent-assistedaneurysmembolization.It can clearly reveal the microscopic structure of the stents,location,relationship with the artery wall,and relationship between stents and coils. The clarity of stent development is associated with the diameters of the packed coils,and the stents are also affected by the metal artifacts projecting direction and the dense degree of the packing coils.