To investigate the effect of myeloid-derived suppressor cells (MDSC) on pro-liferation of B lymphocytes in rheumatoid arthritis (RA) patients.The peripheral blood specimens were collected from 15 healthy adults and 38 RA patients who were divided into high disease activity group, medium activity group and low activity group according to their 28-joint disease activity score (DAS28). And the frequencies of MDSC were determined by flow cytometry. Then, B cells and MDSC were isolated by flow cytometry, respectively. B cells were labeled with carboxyfluorescein diacetate succinimidyl ester (CFSE) and then were co-cultured with MDSC in the presence of 3 mg/L anti-CD40 antibody and 10 mg/L CpG, for 3 days. Flow cytometry was performed to investigate the proliferation of B cells.MDSC expanded markedly in high disease activity patients (7.13% ±2.17%) compared with medium (5.35%±1.36%) and low disease activity patients (4.72%±1.08%) or healthy controls (4.79%±1.02%) (P<0.05), and there were no statistical differences between healthy controls, medium and low disease activity RA (P>0.05). Moreover, the frequencies of MDSC were positively correlated with the DAS28 (P<0.05). After co-culture, MDSC significantly promoted B cell proliferation (P<0.01).Our studies showed that MDSC expanded obviously in high disease activity RA patients, and their frequencies were positively correlated with the disease activities. Furthermore, MDSC could promote autologous B cell proliferation remarkably in vitro. These findings suggest that MDSC might be involved in RA pathogenesis through regulating B cell functions.
To explore the significance of lymphocytes in systemic sclerosis (SSc), by detecting the levels of T lymphocytes, B lymphocytes and natural killer (NK) cells, and analyzing the correlation between the lymphocytes and clinical laboratory indexes.The numbers and proportion of T, CD4+T, CD8+T, B, and NK cells were detected by flow cytometry in peripheral blood of 32 SSc patients who had taken immunosuppressive drugs and 30 healthy controls (HC). The comparison of the lymphocyte subsets in SSc with them in the HC groups, and the correlation between the lymphocytes and other clinical and laboratory indicators were analyzed by the relevant statistical analysis.Compared with the HC group, the numbers of T, CD4+T, CD8+T, and NK cells in peripheral blood of SSc group, who had taken immunosuppressive drugs, were significantly decreased (P < 0.05). More-over, the proportion of NK cells in peripheral blood of the SSc group was also significantly lower than that in the HC group (P=0.004). In addition, all the lymphocyte subsets were decreased in peripheral blood of more than 65% of the SSc patients who had taken immunosuppressive drugs. Compared with CD4+T normal group, the positivity of Raynaud's phenomenon, erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) was significantly increased in CD4+T reduction group, respectively (P＝0.024, P < 0.001, P=0.018). ESR was higher in CD8+T reduction group than CD8+T normal group (P＝0.022). The prevalence of fingertip ulcer was significantly increased in B cell decrease group (P=0.019). Compared with NK cell normal group, the prevalence of fingertip ulcer was significantly increased in NK cell lower group (P=0.033), IgM was remarkablely decreased yet (P=0.049). The correlation analysis showed that ESR was negatively correlated with the counts of T lymphocytes (r＝－0.455, P＝0.009), CD4+T lymphocytes (r＝－0.416, P＝0.018), CD8+T lymphocytes (r＝－0.430, P=0.014), B cells (r＝－0.366, P＝0.039).The number of CD4+T, CD8+T, B, and NK cells significantly decreased in peripheral blood of SSc patients who had used immunosuppressive drugs, some lymphocyte subsets might be related with Raynaud's phenomenon and fingertip ulcer, and reflected the disease activity by negatively correlated with ESR and CRP; the numbers of lymphocyte subsets in peripheral blood should be detected regularly in SSc patients who had taken immunosuppressive drugs.
Objective: To examine treatment outcomes of breast phyllodes tumors and the prognosis factors of local recurrence. Methods: This retrospective cohort study included 276 patients who underwent surgical resection at Breast Center, Peking University People's Hospital from January 2011 to December 2019. Tumor subtype and histopathological features were determined from pathology reports, and the deadline of follow-up was September 30th, 2020. All 276 patients underwent open surgery, including 17 patients of mastectomy, and 259 patients of lumpectomy. The enrolled patients were all female, with age of (41.5±11.3) years (rang: 11 to 76 years), and tumor diameter of 35(28) mm (M(QR)). The Kaplan-Meier method and Log-rank test were used for survival analysis. The multivariate analysis was implemented using the Cox proportional hazard model. Results: According the pathologic test, there were 191 patients of benign phyllodes tumor, 67 patients of borderline tumor and 18 patients of malignant tumor. There were 249 patients with a follow-up of more than 6 months, and 14.1% (35/249) had local recurrence. The time-to-recurrence was (28.6±22.2) months (range: 2 to 96 months), (29.1±18.1) months (range: 2 to 80 months), (32.1±30.1) months (range: 5 to 96 months) and (12.0±6.9) months (range: 8 to 20 months) for benign, borderline and malignant phyllodes tumors. Tumor diameter (≥100 mm vs.<50 mm, HR=3.968, 95%CI: 1.550 to 10.158, P=0.004) and malignant heterologous element (yes vs. no, HR=26.933, 95%CI: 3.105 to 233.600, P=0.003) were prognosis factors of local recurrence. One death from malignant phyllodes occurred after distant metastasis. The 3-year disease-free survival rates of benign, borderline and malignant phyllodes tumor were 88.2%, 81.7% and 81.4% (P=0.300). Conclusion: Phyllodes tumors have a considerable local recurrence rate, which may be associated with tumor diameter and malignant heterologous element.
Objective: To explore the prognostic predictive value of neutrophil/lymphocyte ratio (NLR) combined with prognostic nutritional index (PNI) in patients with hepatitis B virus-related acute-on-chronic liver failure (HBV-ACLF). Methods: Clinical data from 149 HBV-ACLF patients admitted to the infectious diseases Department of the General Hospital of Ningxia Medical University were retrospectively analyzed. Demographic data of the enrolled patients and the initial clinical-related data after admission were collected. Patients were divided into survival (93 cases) and death groups (56 cases) according to their prognostic condition 90 days after discharge. Demographic and clinical differences were compared between the two groups data. Receiver operating characteristic (ROC) curves were plotted to determine the optimal cutoff values for NLR and PNI in predicting the 90-day mortality rate of HBV-ACLF patients. The COX regression model was used to conduct univariate and multivariate analyses to investigate the correlation between NLR and PNI and the prognosis of HBV-ACLF patients. Kaplan-Meier survival analysis was used to explore the effects of NLR and PNI on the survival of HBV-ACLF patients. Results: The death group NLR was higher than that of the survival group, while the PNI was lower than that of the survival group, with a statistically significant difference. The area under the receiver operating characteristic curve (0.842, 95% CI: 0.779-0.906) showed patients with adverse prognosis assessed by NLR combined with PNI had a superior prognosis than that of the Model for End-Stage Liver Disease (MELD) and its combined serum sodium (MELD-Na) and Child-Turcotte-Pugh (CTP) scores. COX regression analysis showed that NLR≥3.03 and MELD score were independent risk factors affecting the prognosis of HBV-ACLF patients. PNI > 36.13 was a protective factor for evaluating the prognosis of HBV-ACLF patients. Conclusion: NLR combined with PNI can enhance the prognostic predictive value of HBV-ACLF.目的： 探讨中性粒细胞/淋巴细胞比值（NLR）联合预后营养指数（PNI）对乙型肝炎病毒相关慢加急性肝衰竭（HBV-ACLF）患者预后的预测价值。 方法： 回顾性分析宁夏医科大学总医院感染性疾病科收治的149例HBV-ACLF患者的临床相关资料。收集入组患者的人口学资料和入院后首次临床相关资料，根据患者出院后90 d的疾病转归情况将患者分为生存组（93例）和死亡组（56例），比较2组人口学资料和临床资料的差异。绘制受试者操作特征（ROC）曲线，确定NLR和PNI预测HBV-ACLF患者90 d病死率的最佳截断值。通过COX回归模型进行单因素和多因素分析，探讨NLR和PNI与HBV-ACLF患者预后的关系。采用Kaplan-Meier生存分析探讨NLR和PNI对HBV-ACLF患者生存期的影响。 结果： 死亡组的NLR高于生存组，而PNI低于生存组，差异有统计学意义。ROC曲线显示NLR联合PNI评估HBV-ACLF患者不良预后的受试者操作特征曲线下面积（0.842，95%CI：0.779~0.906）大于终末期肝病模型（MELD）及其联合血清钠（MELD-Na）及Child-Turcotte-Pugh（CTP）评分。COX回归分析显示NLR≥3.03和MELD评分是影响HBV-ACLF患者预后的独立危险因素。而PNI > 36.13是评估HBV-ACLF患者预后的保护性因素。 结论： NLR联合PNI可提高对HBV-ACLF预后的预测价值。.
Objective: To identify the influencing factors of thrombosis besides antiphospholipid antibodies in patients with antiphospholipid syndrome (APS). Methods: The 169 patients diagnosed with APS were enrolled according to the current APS classification criteria from January 2003 to August 2017 in Peking University People's Hospital. There were 23 males and 146 females with a mean age of (41±15) years. Antiphospholipid antibodies, including anticardiolipin (aCL), anti-β2glycoprotein-1 (β2GP1) antibodies and antibodies to the phosphatidylserine-prothrombin complex (aPS/PT), were determined by enzyme-linked immunosorbent assay (ELISA) methods. Lupus anticoagulant (LA) was identified using the STA Compact coagulation testing system. The differences of clinical and laboratory characteristics between patients with and without thrombosis were analyzed (100 cases and 69 cases, respectively). The influencing factors for thrombosis in patients with APS were determined using binary logistic regression. Results: Compared with patients without thrombosis, patients with thrombosis were older and had a longer disease duration ((45±17) years vs (35±9) years and M(Q1, Q3) 12.0(3.8, 84.0) months vs 48.0(12.0, 108.0) months, both P<0.05). The percentage of male, primary APS, smoking, low blood platelet count, hypertension, and diabetes in patients with thrombosis were significantly higher than those in patients without thrombosis (all P<0.05). Similarly, the rates of antinuclear antibodies positive, aCL positive, aPS/PT-IgM positive, and aPS/PT-IgG positive in patients with thrombosis were significantly higher than those in patients without thrombosis (all P<0.05). The levels of D-dimer in patients with thrombosis were significantly higher than that in patients without thrombosis (P<0.05). There was significant difference in global anti-phospholipid syndrome score (GAPSS) between patients with and without thrombosis (P<0.05). The GAPSS score was also significantly higher in patients with arterial thrombosis than that in patients with venous thrombosis (P<0.05). Smoking and D-dimer levels were independent influencing factors for thrombosis in patients with APS (smoking: OR=11.222, 95%CI:1.119-112.544, P=0.040, D-dimer levels: OR=1.002, 95%CI: 1.000-1.003, P=0.037). Conclusions: Thrombotic APS patients are older and have a longer suffering duration, a higher ratio of male, primary APS, smoking, hypertension, lower blood platelet count, diabetes, higher GAPSS scale, and higher D-dimer levels. Smoking and D-Dimer levels may be independent risk factors for thrombosis in patients with APS.目的： 探讨抗磷脂综合征（APS）患者抗磷脂抗体外血栓的影响因素。 方法： 选取2003年1月至2017年8月于北京大学人民医院就诊的资料齐全的APS患者169例，根据是否发生血栓将患者分为血栓组（100例）和非血栓组（69例）。纳入患者年龄为（41±15）岁，男23例，女146例。酶联免疫吸附试验（ELISA）法检测抗心磷脂抗体（aCL）、抗β2-糖蛋白1抗体（β2GP1）、抗磷酯酰丝氨酸/凝血酶原（PS/PT）抗体，通过STA Compact凝血检测系统测定狼疮抗凝物（LA）。计算所有患者的全面APS评分（GAPSS）。比较血栓及非血栓患者抗磷脂抗体外其他临床及实验室指标的差异，通过二元logistic回归分析APS患者血栓的独立影响因素。 结果： 血栓性APS患者年龄及病程显著高于非血栓性APS患者［（45±17）岁比（35±9）岁和M（Q1，Q3）12.0（3.8，84.0）个月比48.0（12.0，108.0）个月，均P<0.05］，血栓性APS患者中男性、原发APS、吸烟、血小板减少、高血压、糖尿病的比例均高于非血栓性APS患者（均P<0.05）。血栓性APS患者抗核抗体阳性、aCL阳性、抗PS/PT抗体-IgM阳性、抗PS/PT抗体-IgG阳性比例及D二聚体水平均高于非血栓性APS患者（均P<0.05）。血栓患者GAPSS评分显著高于非血栓患者（均P<0.05），动脉血栓患者的评分更高（P<0.05）。二元logistic回归分析发现，吸烟（OR=11.222，95%CI：1.119~112.544，P=0.040）及D二聚体水平（OR=1.002，95%CI：1.000~1.003，P=0.037）是APS患者血栓的独立影响因素。 结论： 血栓性APS患者年龄大，病程长，男性、原发APS、吸烟、高血压、血小板减少、糖尿病比例更高、GAPSS评分、D二聚体水平更高。吸烟及D-二聚体水平升高是APS患者血栓的独立影响因素。.
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