Study of a Quantitative Fluorescence Method for Interleukin 2 Receptor of Mononuclear Cell in Normal Human Peripheral Blood

A quantitative method using fluorescence spectro-photometer to detect theinterleukin 2 reocptor （IL 2R） on the surface of mononuclear cells in normal humanperipheral blood is described. For expression of IL 2R, the optimum conoentration of PHA andCon A were 100 μg/ml and 10 μg/ml respectively. The PHA induced effect on mononuclear cellswas better than Con A induced one. The peak value of IL 2R cxpression was at the 24th h afterstimulation The optimum dilution of the first antibody （anti-Tac） was 1: 50, while the dilution ofthe second antibody（fluorescein conjugated rabbit anti-mousc IgG） was 1: 32 Their optimumincubation period was 20 and 10 min repectively. The concentration of fluorcscein-conjugatedantibody per 1×106 mononuclear cells from the same normal human peripheral blood was5.22±0.45×10-10 mol, and the coefficient of variation was 8. 6%. The concentration offluorescein-conjugated antibody per 1×106PBMC from five healthy individuals was 4. 8±0. 97×10-10 mol Therefore this assay system is stable and quite reproducible.

Soluble Interleukin 2 Receptor-Alpha (sIL-2Rα) in the Peripheral Blood of Dogs—Comparison of Malignant Neoplasia with Other Diseases

Background: Cytokines are mediators of diseases. Expression levels in the blood could be of clinical relevance. Objective: sIL-2Rα is used as a marker for different malignancies in human medicine. The aim of this study was to show if sIL-2Rα is detectable and if there is any correlation to different diseases in dogs. Methods: For this purposes sIL-2Rα concentrations in the blood were measured in healthy dogs, in dogs with different non-neoplastic diseases and benign tumors and in dogs with malignant tumors. Serum levels of sIL-2Rα were measured by using a human specific enzyme linked immunosorbent assay (ELISA). Results: Measurement of sIL-2Rα was successful in most of the samples. Dogs with diseases have significantly increased serum levels of sIL-2Rα compared to healthy controls. sIL-2Rα serum levels are higher in patients with non-neoplastic diseases and benign tumors than in those with malignant neoplasia. There is a strong correlation between sIL-2Rα and leukocyte count. Conclusion: Measurements of sIL-2Rα in serum may be helpful in detecting stages and grades of inflammation in the progression of disease. sIL-2Rα could actually not be used as an indicator for malignant diseases in dogs like in humans. The strong correlation between sIL-2Rα and the leukocyte count indicates the inflammatory response to the disease. This could be helpful in giving a prognosis in some cases, because the inflammatory reaction is of prognostic relevance in different diseases including malignant and non-malignant neoplasia. Although the results of our research studies were very promising, further studies should be performed with a canine ELISA.

Changes in soluble interleukin-2 receptor level in serum and Na^+ -K^+ -exchanging ATPase activity in semen of infertile men caused by antisperm antibody

Aim: To explore the possible mechanisms of male infertility caused by antisperm antibody (AsAb). Methods: Thesoluble interleukin-2 receptor (sIL-2R) level in serum was analyzed by ELISA and Na^+ -K^+ -exchanging ATPase activi-ty in semen by phosphorus (Pi) assay. Results: The slL-2R level in serum was significantly higher and the Na^+ -K^+ -exchanging ATPase activity in semen significantly lower in AsAb positive infertile men when compared with thecontrols. Conclusion: The AsAb titer varies with the slL-2R level in serum. A decrease in Na^+ -K^+ -exchangingATPase activity in semen may play a role in male infertility caused by AsAb.

Study of the Effect of Leeching on Plasma Endothelin and Soluble Interleukin-2 Receptor in Patients with Systemic Lupus Erythematosus

Objective: to explore the mechanism of leeching in treating systemic lupus erythematosus (SLE). Methods: Forty-four patients with SLE were randomly divided into conventional corticosteroid treated group (control group, n =20) and conventional treatment group with leeching intervention added (leeching group, n =24). Before and after treatment the concentration of plasma endothelin (ET) and soluble interleukin-2 receptor (sIL-2R) were determined. Results: Before treatment the level of plasma ET and sIL-2R in the SLE patients were all higher than those in the normal healthy group, ( P <0.01). But after treatment the level of these in both groups were significantly improved than those of before treatment ( P <0.05), and comparison between these two treated groups showed that the difference between them was significant ( P <0.05). Conclusion: Leeching added to conventional treatment of SLE could be more effective in improving the level of plasma ET and sIL-2R, and ameliorating the impairment of renal tissues.

Elevated pancreatic enzymes, IgM, soluble interleukin-2 receptor in anti-GADab(+) type 1 diabetes

Type 1 diabetes can be classified into immune-mediated diabetes (type 1A) and idiopathic diabetes, which lacks immunological evidence for beta cell autoimmunity (type 1B). Type 1A diabetes is characterized by the presence of the anti-glutamic acid decarboxylase antibody (anti-GADab). Fulminant type 1 diabetes is classified as type 1B diabetes, and characterized by the absence of anti-GADab, flu-like symptoms, and elevated serum exocrine pancreatic enzymes. We report a type 1 diabetic patient who showed flu-like symptoms, elevated serum exocrine pancreatic enzymes, and an extremely high-titer of anti-GADab, manifesting the characteristics of both type 1A and fulminant type 1 diabetes.

Effects of Aprotinin on Serum Interleukin-2 and Soluble Interleukin-2 Receptor during Cardiopulmonary Bypass

Interleukin-2 and its receptor are of importance in regulating immunity responses. The changes of interleukin-2 (IL-2) and soluble interleukin-2 receptor (IL-2R) during heart valve (s) replacement operation and effects of aprotinin on them were observed. Twenty patients undergoing heart valve (s) replacement were randomly divided into two groups: control group (n=10) and apro- tinin group (n=10). In aprotinin group, 1 000 000 KIU aprotinin was given by vein injection and then 2 000 000 KIU was given as a bolus in prime. Blood samples were collected before CPB, right after CPB and on the 1st, 3rd and 7th postoperative day (POD) for serum IL-2 and sIL-2R determination. Results showed that after CPB, IL-2 was reduced and slL-2R increased. Meanwhile, serum IL-2R was lower in aprotinin group than that of control. It is concluded that the immunity depression after CPB is associated with low level of IL-2 and high level of sIL-2R and aprotinin can ameliorate the situation.

Fluence of Glucosidorum Tripterygii Totorum on joint and serum soluble interleukin-2 receptor in patients with ankylosing spondylitis

Objective The current study was designed to find out the effect of Glucosidorum Tripterygii Totorum (GTT) on the serum level of soluble interleukin-2 receptor (sIL-2R) in patient with ankylosing spondylitis (AS). Method 29 patients with active AS were selected to take GTT (1mg per kg) three times a day for one year. After that, its curative effect was evaluated. The serum level of sIL-2R of these patients was measured by sandwich ELISA method and was compared with that of normal subjects. Result The serum level of sIL-2R in active AS patients was obviously higher than that of the non-active AS patients. (P<0.01). The total effective rate of GTT on AS was 89.6%, while clinical relief rate 27.6%, obvious effective rate 44.8%, effective rate 17.2% and non-effective rate 10.4%. The patients’ serum level of sIL-2R after therapy was significantly lower than that before therapy except patients with no effect. (P<0.05). Conclusion GTT has positive curative effect on active AS patients and could cause obvious decrease of the serum level of sIL-2R. The serum level of sIL-2R can be used as an important index of activity of AS and as a guide of therapy.

Searching for Peptide Ligands of Interleukin-2 Receptor α Chain in Phage-displayed Peptide Library

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STUDY OF T－LYMPHOCYTE SUBSETS AND INTERLEUKIN－2 AND INTERLEUKIN－2 RECEPTOR OF RESPIRATORY SYNCYTIAL VIRUS PNEUMONIA

T-Lymphocyte subsets and humoral immune and the activity of IL-2 and IL-2R in respiratory syncytial virus (RSV) pneumonia in 26 cases were tested. The result showed in the patients with RSV pneumonia the averages of T3 and T4 were 37.56±1.46% and 27. 15±8. 02% respectively,They were significantly lower than 53.4 ±9.2% and 35.5±7.7% of averages of T3 and T4 in healthy controlled group (both. P< 0. 001 ), the average of T3 was 22. 73±7.06%, it was lower an 26. 7±6. 3 % of T8 in controlled group (P<0. 02 );the ratio of T4/T8 was 1. 245±0. 399 ,there was no significant difference from 1. 35 ±0. 17 of the ratio in controlled group (P > 0. 1). The mean value of IgG was 1. 177± 0. 3685g/L, it was significantly lower than 1. 427± 0. 498g/L of that in controlled group(P < 0. 005). The mean values of IgA and IgM were 0. 1136±0.0393g/L and 0. 768±0. 353g/L respectively, they were significantly lower than 0. 2706 ±0. 876g/L and 0. 122±0. 061g/L of IgA and IgM in controlled group. The activity of IL-2 and IL-2R were 17. 46 ±5. 79%, and 28. 32 ±5. 924% respectively, they were significantly lower than 30. 22 ±14. 55% and 39. 53±8. 61 % of those in healthy group (both P < 0. 001). The severe the pneuumonia, the greater the lowering of IL-2 and IL-2R. These about results suggested that RSV could greatly suppress the immune function of the patients, inducing secondary immunodeficiency, leading to repeated breather and asthma.

Expression of estrogen receptor alpha,nerve growth factor,interleukin-2,and androgen receptor in the cerebellum of ovariectomized rats following soybean isoflavone treatment

BACKGROUND： Studies have shown that estrogen receptor alpha （ERα）, nerve growth factor （NGF）, interleukin-2 （IL-2）, and androgen receptor （AR） expression in the cerebellum decreases when estrogen levels decrease in vivo. Soybean isoflavone, a type of non-steroid estrogen with similar molecular structure and function to estradiol, exhibits estrogen-like characteristics. OBJECTIVE： To investigate the effects of various doses of soybean isoflavone on expression of ERa, NGF, IL-2, and AR in the cerebellum of ovariectomized rat, and to determine whether there is a dose-dependent effect.DESIGN, TIME AND SETTING： Controlled trial at the cellular and molecular level. The study was performed at the Experimental Animal Engineering Center, College of Veterinary Medicine, Sichuan Agricultural University from July 2006 to May 2008. MATERIALS： Soybean isoflavone, comprised of daidzin, genistein and isoflavone, was provided by Taiyuan Yuantai Biochemical Industry, China. The ERα, NGF, IL-2, and AR in situ hybridization kit, rabbit anti-rat ERa, NGF, IL-2, and AR monoclonal antibodies, and SABC kit were purchased from Wuhan Boster Biological Technology, China. METHODS： A total of 50 female, Sprague Dawley rats, aged 3 months, were randomly assigned to 5 groups, with 10 animals in each group. With the exception of the sham-operation group （abdominal cavity opening alone）, all rats underwent bilateral ovariectomy. At 14 days after surgery, rats in the high-, middle-, and low-dose soybean isoflavone groups were subcutaneously injected with 1.5, 1.0, and 0.5 mg/kg soybean isoflavone, respectively, every 2 days for 6 consecutive weeks. Rats in the sham-operation and ovariectomized groups were subcutaneously injected with absolute alcohol （0.5 mL/kg）. MAIN OUTCOME MEASURES： Expression levels and distribution of ERα, NGF, IL-2, and AR in the cerebellum were detected by immunohistochemistry and in situ hybridization. RESULTS： Compared with the sham-operation group, immunoreactive products and hybridization signals of ERa, NGF, IL-2, and AR were significantly decreased in the cerebellar cortex and nuclei of ovariectomized rats （P 〈 0.05 or P 〈 0.01）, but increased following soybean isoflavone treatment. In particular, levels of the high-dose soybean isoflavone group were almost restored to levels of the sham-operation group （P 〉 0.05）. The immunoreactive products were primarily located in the cytoplasm and neurites, and rarely in the cell membrane and nuclei. However, the hybridization signals were predominantly located in the nuclei, but rarely in the cytoplasm, cell membrane, or neurites. CONCLUSION： Soybean isoflavone upregulated ERα, NGF, IL-2, and AR protein and gene expression in a dose-dependent manner, and played an important role in sustaining and protecting structure and function of cerebellar neurons. Moreover, the similarity of expression patterns of these molecules indicated that they were mutually interactive during the regulation of soybean isoflavone to the cerebellum.

DETECTION OF PLASMA SOLUBLE INTERLEUKIN－2 RECEPTOR IN PATIENTS WITH SEVERE AND CHRONIC ACTIVE HEPATITIS B

Plasma levels of soluble interleukin-2 receptor (sIL-2R) in patients with chronic active hepatitis B (CAHB) or severe hepatitis B (SHB) were measured quantitatively by 'sandwich' ELISA with monoclonal antibodies in order to explore the change of sIL-2R levels, its clinical significance,and its relation to liver damage. The results showed that the plasma sIL-2R levels in patients with CAHB and SHB were much higher than those in normal controls (P < 0. 01 ), and the level ofplasma sIL-2R in patients with SHB was greatly higher than that in patients with CAHB. These results suggest that there is close relation between plasma level of sIL-2R, the clinical types of hepatitis B,and the severity of liver damage. In addition, there is no significant difference in plasma levels of sIL-2R between acute severe hepatitis B (ASHB), subacute severe hepatitis B (SASHB), and chronic severe hepatitis B (CSHB). No relation was found between sIL-2R level and hepatitis B virusreplication activity.

外周血sIL-2R、CD4^(+)/CD8^(+)、TNF-α对初治活动性肺结核老年患者化疗疗效的评估价值

目的探讨外周血可溶性白细胞介素2受体(sIL-2R)、CD4^(+)淋巴细胞百分比/CD8^(+)淋巴细胞百分比比值(下称CD4^(+)/CD8^(+))、肿瘤坏死因子-α(TNF-α)对初治活动性肺结核老年患者化疗疗效的评估价值。方法将2019年12月至2022年12月该院收治的102例初治活动性肺结核老年患者纳入研究作为观察组,另选取102例年龄≥60岁且同期于该院体检的健康者作为对照组。比较两组外周血sIL-2R、TNF-α、CD4^(+)/CD8^(+)水平并分析sIL-2R、TNF-α、CD4^(+)/CD8^(+)间的相关性。观察组均采用2HRZE/4HR抗结核治疗方案,比较观察组治疗前、治疗1个月、治疗6个月时不同疗效患者外周血sIL-2R、TNF-α、CD4^(+)/CD8^(+);分析sIL-2R、CD4^(+)/CD8^(+)、TNF-α水平与疗效的相关性;采用受试者工作特征(ROC)曲线分析各指标用于老年患者化疗疗效评估的效能。结果观察组sIL-2R、TNF-α水平高于对照组,而CD4^(+)/CD8^(+)低于对照组,差异均有统计学意义(P<0.05)。观察组sIL-2R、TNF-α与CD4^(+)/CD8^(+)呈负相关(P<0.05),sIL-2R与TNF-α呈正相关(P<0.05)。治疗1个月、治疗6个月时显效患者sIL-2R、TNF-α水平低于有效患者,而后者又低于无效患者,显效患者CD4^(+)/CD8^(+)高于有效患者,而后者又高于无效患者,差异均有统计学意义(P<0.05)。sIL-2R、TNF-α水平与疗效呈负相关(P<0.05),CD4^(+)/CD8^(+)与疗效呈正相关(P<0.05)。ROC曲线分析显示,治疗1个月、6个月时sIL-2R、CD4^(+)/CD8^(+)、TNF-α联合用于评估疗效的曲线下面积(AUC)明显大于各时间点单项指标用于评估的AUC(P<0.05),而且治疗6个月时各指标联合评估的AUC大于治疗1个月(P<0.05)。结论初治活动性肺结核老年患者sIL-2R、CD4^(+)/CD8^(+)、TNF-α水平与患者疗效密切相关,将以上指标联合用于评估患者化疗疗效具有一定参考价值。

炎性因子IL-8、PCT、IL-2R与严重细菌性颅内感染GCS评分的关系及预测预后的价值

目的分析严重细菌性颅内感染患者炎性因子白介素-8(IL-8)、降钙素原(PCT)、白介素-2受体(IL-2R)与格拉斯哥昏迷量表(GCS)评分的关系,并探讨其预测预后的价值。方法前瞻性选取2020年1月至2023年1月平顶山市第一人民医院收治的80例严重颅内感染患者作为研究对象,根据GCS评分分为轻中度组(9~14分)32例和重度组(≤8分)48例。比较两组患者的GCS评分和血清IL-8、PCT、IL-2R水平,采用Pearson相关系数分析血清IL-8、PCT、IL-2R水平与GCS评分的相关性,并以格拉斯哥预后量表(GOS)评估预后情况,比较预后良好、预后不良患者的临床资料和血清IL-8、PCT、IL-2R水平,通过Lasso回归筛选预后不良的预测因素,采用受试者工作特征(ROC)曲线分析血清IL-8、PCT、IL-2R预测预后不良的价值,并比较含与不含血清IL-8、PCT、IL-2R预测方案对预后不良的预测能力。结果重度组患者入院时血清IL-8、PCT、IL-2R水平分别为(35.12±4.26)pg/mL、(11.83±2.26)pg/mL、(912.35±105.83)U/m L,明显高于轻中度组的(26.74±3.81)pg/m L、(8.49±2.03)pg/m L、(749.21±92.56)U/m L,差异均有统计学意义(P<0.05);Pearson相关系数分析结果显示,严重细菌性颅内感染患者入院时的血清IL-8、PCT、IL-2R水平与GCS评分呈负相关(P<0.05);预后不良患者的年龄、机械通气占比、糖尿病占比、感染至入院时间、入院时血清IL-8、PCT、IL-2R水平分别为(65.13±7.26)岁、67.57%、27.03%、(38.05±4.17)h、(40.12±4.81)pg/m L、(12.67±2.59)pg/m L、(951.46±121.49)U/mL,明显高于预后良好患者的(56.39±6.41)岁、41.86%、9.30%、(26.92±3.46)h、(24.59±3.95)pg/mL、(8.61±2.24)pg/mL、(757.28±97.28)U/mL,入院时GCS评分为(6.72±0.39)分,明显低于预后良好患者的(10.81±0.82)分,差异均有统计学意义(P<0.05);经Lasso回归分析结果显示,年龄、感染至入院时间、GCS评分、血清IL-8、PCT、IL-2R水平均为预后不良的预测因素(P<0.05);经ROC分析结果显示,血清IL-8、PCT、IL-2R预测预后不良的曲线下面积(AUC)分别为0.729、0.717、0.719;含炎性因子预测方案的AUC为0.933,不含炎性因子预测方案的AUC为0.811;经DeLong检验结果显示,与不含炎性因子预测方案比较,含炎性因子预测方案的AUC明显增大(P<0.05),净重新分类指数(NRI)、综合判别改善指数(IDI)均>0(P<0.05)。结论严重细菌性颅内感染患者血清IL-8、PCT、IL-2R水平与GCS评分存在明显负相关,且与预后转归密切相关,可为临床预测预后提供参考。

慢性乙型肝炎患者HBV DNA载量及血清IL-2R、GP73、miR-21与HBVM表达模式、肝组织病理学改变的相关性

目的探讨慢性乙型肝炎患者乙型肝炎病毒(HBV)DNA载量及血清白细胞介素-2受体(IL-2R)、高尔基体蛋白73(GP73)、微小RNA-21(miR-21)与乙型肝炎病毒血清标志物(HBVM)表达模式、肝组织病理学改变的相关性。方法回顾性选取2020年1月至2022年12月四川绵阳四0四医院(绵阳市第一人民医院)收治的106例慢性乙型肝炎患者作为观察组,另纳入本院125名同期健康体检者为对照组。观察组根据肝脏炎症程度分为炎症较轻组(G_(0)~G_(2)期,n=61)和炎症较重组(G_(3)~G_(4)期,n=45);根据肝纤维化程度分为纤维化较轻组(S_(0)~S_(2)期,n=80)和纤维化较重组(S_(3)~S_(4)期,n=26);根据外周血中是否产生乙肝表面抗体(抗-HBs)分为抗-HBs阳性组(n=77)和抗-HBs阴性组(n=29)。比较观察组与对照组血清IL-2R、GP73、miR-21水平,比较不同肝脏炎症程度、不同肝脏纤维化程度、不同HBVM表达模式的慢性乙型肝炎患者HBV DNA载量、血清IL-2R、GP73、miR-21水平,并采用Spearman相关性分析分析HBV DNA载量、血清IL-2R、GP73、miR-21与肝组织病理学改变的相关性。结果观察组血清IL-2R、GP73、miR-21水平分别为(559.65±46.65)U/mL、(149.87±31.65)ng/mL、1.98±0.65,均高于对照组[(272.54±28.65)U/mL、(48.76±9.65)ng/mL、1.23±0.36],差异均有统计学意义(P<0.05)。炎症较重组HBV DNA载量、血清IL-2R、GP73、miR-21水平分别为(5.98±0.73)loads、(703.54±57.54)U/mL、(243.65±38.65)ng/mL、1.99±0.54,均高于炎症较轻组[(4.65±0.68)loads、(450.65±36.65)U/mL、(80.43±20.34)ng/mL、1.54±0.45],差异均有统计学意义(P<0.05)。纤维化较重组HBV DNA载量、血清IL-2R、GP73、miR-21水平分别为(6.03±0.98)loads、(675.65±58.04)U/mL、(189.65±41.65)ng/mL、2.34±0.34,均高于纤维化较轻组[(4.48±0.79)loads、(522.65±31.54)U/mL、(135.76±26.54)ng/mL、1.31±0.28],差异均有统计学意义(P<0.05)。抗-HBs阳性组和抗-HBs阴性组HBV DNA载量、血清IL-2R、GP73、miR-21水平比较,差异均无统计学意义(P>0.05)。HBV DNA载量、血清IL-2R、GP73、miR-21均与肝脏炎症程度呈正比(r=0.546、0.498、0.657、0.508,P<0.05),与肝脏纤维化程度呈正比(r=0.487、0.506、0.673、0.703,P<0.05)。结论慢性乙型肝炎患者血清中IL-2R、GP73、miR-21表达较高,且患者HBV DNA载量、血清IL-2R、GP73、miR-21水平与肝脏炎症及纤维化程度呈正比,但其与HBVM表达模式无明显相关性。

急性白血病患儿造血干细胞移植后血清LDH、sIL-2R、GDF15水平变化及其临床意义

目的检测急性白血病患儿造血干细胞移植后血清乳酸脱氢酶(LDH)、可溶性白细胞介素-2受体(sIL-2R)、生长分化因子15(GDF15)水平,并探讨其临床意义。方法回顾性分析2022年1月至2023年6月河南省儿童医院收治的78例急性白血病患儿的临床诊治资料,所有患儿均进行造血干细胞移植,检测患儿移植前后的血清LDH、sIL-2R、GDF15水平。依据患儿移植后6个月的预后情况分为预后良好组(n=64)和预后不良组(n=14)。比较两组患儿的基线资料及移植前后的血清LDH、sIL-2R、GDF15水平,采用偏相关性系数分析血清LDH、sIL-2R、GDF15水平与移植预后的偏相关性,采用受试者工作特征(ROC)曲线分析血清LDH、sIL-2R、GDF15单独及联合预测移植预后的效能,并比较各预测方案的预测效能。结果移植后,患儿的血清LDH、sIL-2R、GDF15水平分别为(224.83±65.27)U/L、(257.41±80.26)U/mL、(0.87±0.26)ng/mL,明显低于移植前的(418.96±135.22)U/L、(492.83±140.47)U/mL、(1.39±0.45)ng/mL,差异均有统计学意义(P<0.05);预后不良组患儿移植前未达到完全缓解(CR)占比及移植后血清LDH、sIL-2R、GDF15水平分别为64.29%、(327.49±98.42)U/L、(349.83±112.06)U/mL、(1.17±0.32)ng/mL,明显高于预后良好组患儿的26.56%、(202.37±65.87)U/L、(237.19±75.17)U/mL、(0.80±0.26)ng/mL,差异均有统计学意义(P<0.05);偏相关性分析结果显示,在控制移植前未达到CR等因素后,移植后血清LDH(偏相关性系数=0.894,95%CI:1.415~3.029)、sIL-2R(偏相关性系数=0.875,95%CI:1.374~2.982)、GDF15(偏相关性系数=0.902,95%CI:1.692~3.047)水平仍与移植预后不良显著相关(P<0.05);ROC分析结果显示,移植后血清LDH、sIL-2R、GDF15单独预测移植预后的曲线下面积(AUC)分别为0.747、0.787、0.844,LDH+sIL-2R、LDH+GDF15、sIL-2R+GDF15及三者联合预测预后的AUC分别为0.884、0.886、0.898、0.949;成对对比分析结果显示,移植后血清三者联合预测AUC最大(0.949),预测效能明显优于各指标单独及两两联合预测价值。结论血清LDH、sIL-2R、GDF15与急性白血病患儿造血干细胞移植预后密切相关,且三者联合检测对预后不良具有一定预测价值,可作为临床预测预后的辅助指标,并指导临床防治工作。

支气管哮喘合并肺炎支原体感染患儿血清Periostin、sIL-2R水平变化及其与血清炎症因子、肺功能相关性分析

目的探究支气管哮喘合并肺炎支原体(MP)感染患儿血清骨膜蛋白(Periostin)、可溶性白细胞介素-2受体(sIL-2R)水平变化及其与血清炎症因子、肺功能的相关性。方法选择2021年9月至2023年9月本院收治的支气管哮喘合并MP感染患儿(感染组)、单纯支气管哮喘患儿(哮喘组)及同期体检的健康儿童(对照组)各60例。采用酶联免疫吸附法检测血清Periostin、sIL-2R水平。采用Pearson相关性分析支气管哮喘合并MP患儿血清Periostin、sIL-2R水平与炎症因子、肺功能的相关性。结果感染组、哮喘组、对照组血清Periostin、sIL-2R水平均依次降低(P<0.05)。感染组、哮喘组、对照组血清干扰素(IFN)-γ、白细胞介素(IL)-4、IL-8、肿瘤坏死因子(TNF)-α水平均依次降低(P<0.05)。感染组、哮喘组第1秒用力呼气容积(FEV1)/用力肺活量(FVC)均低于对照组(P<0.05);感染组、哮喘组、对照组最大呼气流量(PEF)依次升高(P<0.05)。支气管哮喘合并MP感染患儿血清Periostin、sIL-2R水平均与IFN-γ、IL-4、IL-8、TNF-α水平呈正相关,均与PEF呈负相关(P<0.05)。结论支气管哮喘合并MP感染患儿血清Periostin、sIL-2R水平较高,与患儿血清炎症因子、肺功能密切相关。

白细胞介素-2受体和CD4~+/CD8~+对狼疮性肾炎活动性的相关研究

目的 探讨狼疮性肾炎(lupus nephritis,LN)患者血清白细胞介素-2受体(interleukin-2 receptor,IL-2R)、CD4~+/CD8~+与疾病活动性的相关性。方法 选取2021年3月至2022年12月于浙江中医药大学附属杭州市中医院就诊的38例LN患者纳入LN组,同期于本院体检健康者40名为健康对照组。收集受试者的一般临床资料、系统性红斑狼疮疾病活动指数(systemic lupus erythematosus disease activity index,SLEDAI)及病理分型;根据SLEDAI评分将LN患者分为活动组和非活动组,比较两组患者的临床指标差异。结果 LN组患者的血红蛋白(hemoglobin,Hb)、血小板计数、白蛋白(albumin,ALB)、补体C3和C4水平均显著低于健康对照组,抗核抗体和抗双链DNA抗体(anti-double strand DNA antibody,抗ds-DNA抗体)阳性率、C反应蛋白、血肌酐(serum creatinine,SCr)水平均显著高于健康对照组(P<0.05)。活动组患者的ALB显著低于非活动组,IL-2R、红细胞沉降率、24h尿蛋白定量、抗ds-DNA抗体阳性率均显著高于非活动组(P<0.05)。LN患者血清IL-2R水平与SLEDAI、SCr、血尿素氮、24h尿蛋白定量均呈正相关,与Hb、补体C3均呈负相关(P<0.05)。结论 血清IL-2R可作为判断LN活动程度的指标,为临床疾病活动的判断提供依据。

IL-6/IL-6R/JAK2/STAT3通路调控骨髓微环境对多发性骨髓瘤生物学行为影响的研究进展

多发性骨髓瘤(MM)是一种克隆浆细胞异常增殖的恶性疾病,疾病的发展表现出广泛的异质性,这种异质性与MM肿瘤细胞、骨髓微环境之间的相互作用密切相关。IL-6/IL-6R/JAK2/STAT3通路可以调节骨髓微环境中相关可溶性因子的转录,促进MM肿瘤细胞增殖、抗凋亡、产生耐药性及引导相关骨破坏。本文就IL-6/IL-6R/JAK2/STAT3通路调控骨髓微环境对MM生物学行为影响的研究进展进行综述,以期为MM的靶向治疗及精准治疗提供新的研究思路。

血清sIL-2R、IL-27及IL-36对重症急性胰腺炎并发急性肾损伤的预测价值

目的分析血清可溶性白细胞介素2受体(sIL-2R)、白细胞介素(IL)-27及IL-36对重症急性胰腺炎(SAP)并发急性肾损伤(AKI)的预测价值。方法选取2020年1月至2023年3月该院收治的SAP患者126例作为研究对象,根据其是否并发AKI分为AKI组(45例)和非AKI组(81例)。比较两组临床资料。采用多因素Logistic回归分析影响SAP患者并发AKI的危险因素,绘制受试者工作特征(ROC)曲线分析血清sIL-2R、IL-27及IL-36单独及3项指标联合检测对SAP患者并发AKI的预测价值。采用Pearson相关分析AKI患者血清sIL-2R、IL-27及IL-36水平与肝、肾功能指标的相关性。结果两组住院时间、序贯器官衰竭评估(SOFA)评分、急性生理学与慢性健康状况评分系统Ⅱ(APACHEⅡ)评分、血红蛋白、尿量、血肌酐(Scr)、尿素氮、清蛋白、sIL-2R、IL-27及IL-36水平比较,差异均有统计学意义(P<0.05)。多因素Logistic回归分析结果显示,清蛋白水平降低,SOFA评分、APACHEⅡ评分、Scr、尿素氮、sIL-2R、IL-27及IL-36水平升高是SAP患者并发AKI的危险因素(P<0.05)。ROC曲线分析结果显示,血清sIL-2R、IL-27及IL-36单独预测SAP患者并发AKI的曲线下面积(AUC)分别为0.815、0.768、0.861,3项指标联合预测SAP患者并发AKI的AUC为0.925。Pearson相关分析结果显示,AKI组患者血清sIL-2R、IL-27及IL-36水平与SOFA评分、APACHEⅡ评分、Scr、尿素氮水平均呈正相关(P<0.05);AKI组患者血清sIL-2R、IL-27及IL-36水平与清蛋白水平均呈负相关(P<0.05)。结论血清sIL-2R、IL-27及IL-36水平升高是影响SAP患者并发AKI的危险因素,3项指标联合检测对预测SAP并发AKI具有较好的价值。

血清Wnt5a、sIL-2R检测在老年2型糖尿病合并肺部感染患者中的应用及与肺部感染病情严重程度、预后的关系

目的 分析血清Wnt5a、可溶性白细胞介素-2受体(sIL-2R)水平对老年2型糖尿病(T2DM)合并肺部感染的诊断价值,及与肺部感染病情严重程度、预后的关系。方法 选取2021年1月—2022年12月河南科技大学第一附属医院收治的84例老年T2DM合并肺部感染患者作为观察组,选取同期住院的30例T2DM患者作为糖尿病组,选取同期该院体检的健康志愿者30例作为对照组。比较3组Wnt5a、sIL-2R水平,绘制受试者工作特征(ROC)曲线评估Wnt5a、sIL-2R水平对老年T2DM合并肺部感染的诊断价值,采用Pearson法分析观察组Wnt5a、sIL-2R水平与实验室指标的相关性;将观察组根据肺部感染严重程度分为轻度、中度、重度3个亚组,比较3个亚组Wnt5a、sIL-2R水平;根据观察组预后情况分为康复组及死亡组,比较2个亚组Wnt5a、sIL-2R水平。结果 观察组及糖尿病组Wnt5a、sIL-2R、FPG较对照组升高(P <0.05),FEV1较对照组降低(P <0.05),观察组sIL-2R较糖尿病组升高(P <0.05),FEV1较糖尿病组降低(P <0.05)。84例患者共检出病原菌98株,其中革兰阳性菌最多(50.00%),革兰阴性菌其次(47.96%),真菌最少(2.04%)。联合检测的曲线下面积(AUC)、敏感性最高,分别为0.935(95%CI:0.873,0.973)、85.71%(95%CI:0.760,0.921),sIL-2R的特异性最高,为93.33%(95%CI:0.765,0.988)。Pearson相关性分析显示,Wnt5a、sIL-2R水平与FEV1水平呈负相关(r=-0.228和-0.227,均P <0.05)。Wnt5a、sIL-2R水平与FPG水平呈正相关(r=0.450和0.647,均P <0.05)。重度组Wnt5a、sIL-2R水平较轻度组高(P <0.05),中度组sIL-2R水平较轻度组高(P <0.05),重度组sIL-2R水平较中度组高(P <0.05)。死亡组Wnt5a、sIL-2R水平高于康复组(P <0.05)。结论 老年T2DM合并肺部感染患者血清Wnt5a、sIL-2R水平升高,其与患者肺功能、血糖水平有相关性,能够辅助临床判断T2DM患者是否具有肺部感染以及感染严重程度、预后情况。