Involvement of haptoglobin in disease development

Haptoglobin(HP)is a liver glycoprotein that is actively synthesized during in-flammatory and hemolytic processes.It also has pro-oxidant and proinflam-matory properties,which are a function of its genotype.The genetic polymorp-hism of the chains leads to synthesis of three phenotypes/proteins,which are related to the number and type of chains and their molecular weight,namely HP1-1,HP1-2 and HP2-2.Patients with HP2-2 have more vascular complications,while those with HP1-1 have fewer.HP is involved in the worsening of diseases,such as HP2-2 in aggravation of vaso-occlusive crises in sickle cell disease,and worsening of the pathophysiology of other diseases.In contrast,HP1-1 confers better protection against diseases.All of this suggests that further studies should be conducted,including experimental and analytical studies focused on de-monstrating the influence of different HP genotypes on individual clinical and hematological data.This would help in understanding the role played by this genetic polymorphism in the pathophysiology of diseases.

Multifaceted role of haptoglobin:Implications for disease development

Haptoglobin,a protein primarily recognized for its role in sequestering free hemoglobin,has been identified as a molecule with diverse and underexplored functions in the pathophysiology of various diseases.This editorial explores the multifaceted roles of haptoglobin,highlighting its involvement in inflammatory responses and immune regulation and its potential implications in chronic diseases such as diabetes,cardiovascular disorders,and cancer.Through a synthesis of recent research findings,this editorial reveals the importance of haptoglobin in disease mechanisms and underscores the need for further investigation to fully elucidate its therapeutic potential.A comprehensive understanding of haptoglobin’s novel functions may catalyze the development of innovative diagnostic and therapeutic modalities in clinical practice.

Influence of Haptoglobin and Hemoglobin Phenotypic Polymorphisms on Sickle Cell Disease Morbidity

Objectives: Sickle cell disease (SCD) has a varied clinical and biological expression depending on the hemoglobin phenotype: SSFA2, SFA2, SAFA2 and SC. Considering the antioxidant properties of the different haptoglobin phenotypes (Hp 1-1, Hp 2-1, Hp 2-2), it seemed relevant to know their influence on the morbidity of the different hemoglobin phenotype of SCD. Thus, the objective of this study was to identify associations between haptoglobin phenotype and morbidity of different SCD phenotypes. Methods: In a retrospective cross-sectional descriptive and analytical study, with a cohort of 170 black African carriers of hemoglobin S, in Ivory Coast, West Africa, hemoglobin and haptoglobin phenotypes were determined by electrophoretic methods. Results: The three major phenotypes of haptoglobin polymorphism were found in the SCD cohort: Hp 1-1 (24.1%), Hp 2-1 (56.5%), Hp 2-2 (19.4%). Vaso-occlusions were associated with haptoglobin phenotype Hp 1-1, (OR = 2.03;CI95% = [1.06 - 3.9];p Conclusions: Haptoglobin phenotype was associated to morbidity-adjusted hemoglobin phenotype. The study revealed a greater probability of a worse morbidity when the hemoglobin phenotype is homozygous. Unexpectedly, the worse morbidity is associated to Hp 1-1 haptoglobin phenotype, the most powerful antioxidant within the different haptoglobin phenotypes. Associations found were not systematic and need further studies to enlighten the determinism of SCD morbidity.

Detection of fucosylated haptoglobin using the 10-7G antibody as a biomarker for evaluating endoscopic remission in ulcerative colitis

BACKGROUND Inflammatory bowel disease(IBD)is a chronic,relapsing inflammation of the digestive tract.Although fecal and serum biomarkers have been extremely important and supportive for monitoring of IBD,their low sensitivity and high variability characteristics limit clinical efficacy.Thus,the establishment of better biomarkers is expected.Fucosylation is one of the most important glycosylation modifications of proteins.Fucosylated haptoglobin(Fuc-Hpt)is used as a biomarker for several cancers and inflammation-related diseases.We recently established a novel glycan monoclonal antibody(mAb),designated 10-7G,which recognizes Fuc-Hpt.We developed an enzyme-linked immunosorbent assay(ELISA)to measure serum levels of Fuc-Hpt(10-7G values).AIM To investigate the usefulness of the serum 10-7G values as a potential biomarker for monitoring disease activity in IBD.METHODS This was a case control study.Intestinal tissues of IBD patients(n=10)were examined immunohistochemically using the 10-7G mAb.We determined 10-7G values using serum from patients with ulcerative colitis(UC,n=110),Crohn’s disease(n=45),acute enteritis(AE,n=11),and healthy volunteers(HVs)who exhibited normal(n=20)or high(n=79)C-reactive protein(CRP)levels at medical check-up.We investigated the correlation between the 10-7G value and various clinical parameters of IBD patients by correlation analysis.Receiver operating characteristic(ROC)curve analysis was performed to evaluate the usefulness of the 10-7G values as a biomarker for clinical and endoscopic remission of UC compared to conventional serum biomarkers.RESULTS In the immunohistochemical analysis,positive 10-7G mAb staining was observed in lymphocytes infiltrating into inflammatory sites of the mucosal layer and lymphoid follicles.The 10-7G values were significantly higher in patients with IBD(P<0.001)and AE(P<0.05)compared with HVs.In addition,10-7G values were correlated with clinical examination parameters related to inflammation in patients with UC,particularly the CRP level(rs=0.525,P=0.003)and clinical activity index score(rs=0.435,P=0.038).However,there was no correlation between 10-7G values and CRP in HVs with high CRP levels,suggesting that the 10-7G values is not the same as a general inflammation biomarker.ROC curve analysis showed that area under the curve(AUC)value of 10-7G values for the diagnosis of endoscopic remission was higher than other biomarkers(AUC value=0.699).CONCLUSION The serum 10-7G value is a novel biomarker for evaluating intestinal inflammation and endoscopic mucosal healing in UC.

血清APN、visfatin和Haptoglobin与PCOS患者IR指数的关系及临床意义

目的研究血清脂联素(APN)、内脂素(visfatin)、结合珠蛋白(Hp)水平与多囊卵巢综合征(PCOS)患者胰岛素抵抗(IR)指数的临床意义。方法选择2018年2月至2021年3月南阳市中心医院诊治的102例PCOS患者,分为肥胖组(BMI≥23 kg/m^(2),47例)和非肥胖组非肥胖组(BMI<23 kg/m^(2),55例)、IR组(HOMA-IR≥2.69,52例)和非IR组(HOMA-IR<2.69,50例),另选择同期健康志愿者96例作为对照组。检测不同人群血清APN、visfatin、Hp水平,分析三者与IR指数关系及对IR的预测价值。结果FPG、黄体生成素(LH)、visfatin、Hp、HOMA-IR、空腹胰岛素(FINS)、LH/卵泡雌激素(FSH)和体质量指数(BMI)水平:肥胖组>非肥胖组>对照组,APN水平:肥胖组<非肥胖组<对照组,差异均有统计学意义(P<0.05)。血清APN水平与HOMA-IR呈负相关(P<0.05),visfatin、Hp水平与HOMA-IR呈正相关(P<0.05)。IR组患者BMI、FPG、LH、visfatin、Hp、HOMA-IR和FINS水平均显著高于非IR组,APN水平显著低于非IR组,差异均有统计学意义(P<0.05)。BMI、APN、visfatin、Hp均为诱发PCOS患者IR发生的危险因素(P<0.05)。血清APN、visfatin、Hp三者联合的曲线下面积(AUC)值以及特异度均高于单一指标预测(P<0.05)。结论PCOS患者均存在血清APN、visfatin、Haptoglobin水平的异常变化,三者有可能参与PCOS患者IR的发生发展,有望通过上述血清指标预测IR的发生。

haptoglobin基因型与疟疾发病风险不相关:meta分析(英文)

Haptoglobin（Hp）基因多态性与疟疾发病风险存在关联，但各研究结果不一致．本meta分析旨在探讨Hp基因多态性与疟疾发病风险的关系．在Pubmed数据库中查询文献，将包含Hp基因型频率的病例对照研究文献纳入本研究中，并计算疟疾发生危险性的优势比（Oddratio，OR）及其95％置信区间（confidence interval，CI）．最终查到符合要求的文献4篇，其中病例组1312例，对照组1018例．分析结果显示：在各遗传模式下Hp基因多态性与疟疾发病风险的相关性均不显著（加性模式：OR=1．882，95％CI：0．959～3．692，P=0．066；显性模式：OR=1．395，95％CI：0．733～2．656，P=0．311；隐性模型：OR=2．449，95％C／：0．921～6．508，P=0．073：共显性模型：（hp^1／hp^2 vs hp^2／hp^2）OR=0．951，95％CI：0．76～1．189，P=0．658；共显性模型（hp^1／hp^1 vs hp^2／hp^2）OR=2．336，95％CI：0．78～6．994，P=0．129）．并且Egger’s检验（P〉0．05）和Begg’S检验（P〉0．05）均显示不存在发表偏倚．综上所述，haptoglobin基因多态性对疟疾发病风险提高的影响可能并不大．

血清adropin、visfatin、Haptoglobin水平变化与多囊卵巢综合征患者胰岛素抵抗指数的关联性及临床意义研究

目的探究血清adropin、内脂素(visfatin)、结合珠蛋白(Haptoglobin)水平变化与多囊卵巢综合征(PCOS)患者胰岛素抵抗指数(HOMA-IR)的关联性及临床意义。方法选取2015年4月至2017年7月本院收治的121例PCOS患者作为观察组,依据胰岛素抵抗情况分为观察A组(胰岛素抵抗,61例)与观察B组(非胰岛素抵抗,60例),另选取60例健康女性作为对照组,均测定血清adropin、visfatin、Haptoglobin水平,探讨各血清水平与PCOS患者HOMA-IR的关联性。结果三组研究对象体质量指数(BMI)、空腹胰岛素、餐后2h胰岛素,以及血清黄体生成素(LH)、睾酮(T)、卵泡刺激素(FSH)、三酰甘油(TG)、低密度脂蛋白(LDL)、adropin、Visfatin、Haptoglobin水平比较,差异均有统计学意义(P<0.05),且观察A组患者BMI、空腹胰岛素、餐后2h胰岛素,以及血清LH、T、FSH、TG、LDL、visfatin、Haptoglobin水平均显著高于观察B组,观察A组患者血清adropin水平显著低于观察B组,差异均有统计学意义(P<0.05);空腹胰岛素、餐后2h胰岛素、BMI,以及血清adropin、visfatin、adropin、LDL、TG、FSH、T、LH均为诱发PCOS患者胰岛素抵抗的危险因素;PCOS患者HOMA-IR与血清visfatin、Haptoglobin水平呈正相关(r=0.588、0.530,P=0.000),与血清adropin水平呈负相关(r=-0.341,P=0.010)。结论 PCOS患者HOMA-IR与血清adropin、visfatin、Haptoglobin水平密切相关,其中与血清adropin水平呈负相关,与血清visfatin、Haptoglobin水平呈正相关。

Progress on haptoglobin and metabolic diseases

Haptoglobin(Hp)is an acidic glycoprotein,existing in the serum and other body fluids of human beings and a variety of mammals.Hp is produced in the liver,white adipose tissue,and the kidney.The genetic polymorphisms and different phenotypes of Hp have different biological functions.Hp has antibacterial,antioxidant,and angiogenic effects and is associated with multiple diseases including simple obesity,vascular complications of diabetes mellitus,nonalcoholic fatty liver disease,hypertension,blood diseases,autoimmune diseases,and malignant tumors.Hp also participates in many life activities,indicating the importance of Hp in further studies.Previously,we found that the expression of serum Hp changed after treatment of simple obesity patients in clinical trials.However,the specific mechanism of Hp in patients with simple obesity is still unclear.The purpose of this article is to introduce recent research progress on Hp,emphasizing the relationship between Hp and the development of metabolic disease,which will improve the understanding of the functions of Hp underlying metabolic diseases and discuss future research directions.

Involvement of haptoglobin in prevention of oxidative stress cause by hemoglobin in preeclampsia

Haptoglobin (Hp) is a hemoglobin (Hb) binding protein which plays an important role in neutralizing oxidation reactions stimulated by heme-derived iron. Differences in Hp types due to the polymorphic nature of the gene have led to the discovery that individuals carrying the Hp 2-2 genotype are at increased risk of developing vascular complications in the setting of diabetes. Preeclampsia is a pregnancy related disease that is thought to be caused by increases in oxidative stress. The role of Hp polymorphism is determining preeclampsia has been addressed by several clinical studies but the results have been contradictory. Larger longitudinal studies are needed to answer this important question.

Tyrosyl radical in haemoglobin and haptoglobin-haemoglobin complex:how does haptoglobin make haemoglobin less toxic?

One of the difficulties in creating a blood substitute on the basis of human haemoglobin(Hb) is the toxic nature of Hb when it is outside the safe environment of the red blood cells.The plasma protein haptoglobin(Hp) takes care of the Hb physiologically leaked into the plasma-it binds Hb and makes it much less toxic while retaining the Hb’s high oxygen transporting capacity.We used Electron Paramagnetic Resonance(EPR) spectroscopy to show that the protein bound radical induced by H2O2 in Hb and Hp-Hb complex is formed on the same tyrosine residue(s),but,in the complex,the radical is found in a more hydrophobic environment and decays slower than in unbound Hb,thus mitigating its oxidative capacity.The data obtained in this study might set new directions in engineering blood substitutes for transfusion that would have the oxygen transporting efficiency typical of Hb,but which would be non-toxic.

SERUM HAPTOGLOBIN SUPPRESSES T-LYMPHOCYTE FUNCTIONS FOLLOWING BURNS

It is well known that serum immunosuppressive factors play an important role in the mechanism of postburn immunosuppression.This study was intended to investigate the effect of haptoglobin, purified from the serum of burned patients by affinity chromatography,on the proliferation and interleukin-2(IL-2) secretion of normal murine thymocytes induced by ConA and the proliferation of IL-2 dependent cell line(CTLL-2) stimulated by recombinant human IL-2,so as to elucidate the role of serum haptoglobin in postburn T-lymphocyte dysfunction.The results showed that purified haptoglobin,at the level equivalent to the concentration found in serum of burned patients,significantly inhibited the proliferation and IL-2 secretion of normal murine thymocytes as well as CTLL-2 proliferation;whereas it exhibited no immunosuppressive effects at the level equivalent to the concentration found in serum of nomal volunteers.According to the results reported here,it is suggested that extraordinary increase in serum haptoglobin level may be an important factor of impaired T-lymphocyte responses following burns.

Interaction of haptoglobin with hemoglobin octamers based on the mutation <i>α</i>Asn78Cys or <i>β</i>Gly83Cys

Octameric hemoglobins have been developed by the introduction of surface cysteines in either the alpha or beta chain. Originally designed as a blood substitute, we report here the structure and ligand binding function;in addition the interaction with haptoglobin was studied. The recombinant Hbs (rHbs) with mutations alpha Asn78Cys or beta Gly83Cys spontaneously form octamers under conditions where the cysteines are oxidized. Oxygen binding curves and CO kinetic studies indicate a correct allosteric transition of the tetramers within the octamer. Crystallographic studies of the two rHbs show two disulfide bonds per octamer. Reducing agents may provoke dissociation to tetramers, but the octamers are stable when mixed with fresh human plasma, indicating that the reduction by plasma is slower than the oxidation by the dissolved oxygen, consistent with an enhanced stability. The octameric rHbs were also mixed with a solution of haptoglobin (Hp), which binds the dimers of Hb: there was little interaction for incubation times of 15 min;however, on longer timescales a complex was formed. Dynamic light scattering was used to follow the interaction of Hp with the alpha Asn78Cys octamer during 24 hours;a transition from a simple complex of 15 nm to a final size of 60 nm was observed. The results indicate a specific orientation of the αβ dimers may be of importance for the binding to haptoglobin.

Profiles of energy metabolites and haptoglobin in dairy cows under organic management in Alberta farms

Profiles of energy metabolites and haptoglobin (Hp) in dairy cows that are transitioned from conventional to organic management in various Alberta farms were compared with those of dairy cows managed conventionally at the University of Alberta dairy farm. Blood samples were collected during the following periods: Dry, 0 - 30, 30 - 60, and 60 - 90 days in milk (DIM, n = 7 cows). Concentrations of metabolites were evaluated by enzymatic colorimetric methods. Concentrations of Hp were determined by bovine ELISA kits. Data were analyzed by the mixed procedures of SAS. Concentrations of NEFA and BHBA in blood were elevated (P < 0.001) 0 to 30 d, intermediate 30 to 60, and 60 to 90 d, and lower in the dry period. In addition, BHBA was higher (P < 0.0001) at all stages of lactation in conventional than organic cows (e.g. 1289.4 ± 88.6 vs. 883.6 ± 47.5 μmol/L in conventional and organic cows at 0 - 30 d, respectively). Serum concentrations of cholesterol increased with increasing DIM and returned to nadir levels during dry period and was higher (P < 0.0001) in conventional than organic cows. Low glucose concentrations were observed 0 to 30 d, levels were intermediate 30 to 60 and 60 to 90 d, and peaked during the dry period (P < 0.54) between conventional and organic cows. Lactate did not (P < 0.24) vary with DIM or day × farm type but was higher (P < 0.0001) in organic cows than in conventional cows. Serum concentrations of Hp were elevated during dry period;reached peak levels 0 to 30 d and decreased gradually with increasing days postpartum and were much higher at all periods in conventional than organic cows. Overall, concentrations of Hp were 528.1 ± 45.2 μg/mL in conventional cows vs. 261.1 ± 16.9 μg/mL in organic cows (P < 0.0001). Taken together, these data indicate that metabolic changes associated with initiation of lactation are preceded by an acute phase response in dairy cows, and that cows in organic systems seem to be healthier than cows under conventional systems. These differences might be due to differences in nutritional management in the two systems.

Does Haptoglobin Phenotype Impact Infection Mortality?

Introduction: The physiological status of a subject and the pathophysiology in some diseases might be under the influence of haptoglobin phenotype. The objective of this work was to determine the relationship between mortality from HIV/AIDS infection and haptoglobin phenotype in a black population in C&#244;te d’Ivoire. Methods: The study was conducted from a retrospective panel of 933 sera/plasma from the previous workup of the ANRS 12136 TEMPRANO trial at month 0 of patients in deferred-ART arms. For each subject, we determined the serum haptoglobin concentration, haptoglobin phenotype, and other variables from patient files from the TEMPRANO trial database. Statistical tests used were Chi-2, Fischer, and Kruskal-Wallis tests for non-gaussian distribution. We used the Kaplan-Meier method for survival analysis. Results: The distributions of the haptoglobin phenotypes were 32.3% for Hp 1-1, 39.5% for Hp 2-1 and 27.2% for Hp 2-2. The blood haptoglobin concentration seemed to be associated with haptoglobin phenotypes (p-value > 5%). The survival rate at M30 and for an extended follow-up up to 6 years was independent of haptoglobin phenotype (p-value > 5%). Besides, the haptoglobin phenotypes do not appear to be associated with CD4+ T-cell count and with hemoglobin concentration. Conclusion: Haptoglobin phenotype seems to not impact the mortality of HIV/AIDS infection. However, given the antioxidant and immunomodulatory properties of some haptoglobin phenotypes, it would be relevant to seek out possible confounding factors indirectly associated with haptoglobin phenotypes and clinical or biological infection variables.

触珠蛋白和不对称二甲基精氨酸与急性脑梗死预后关系

目的探讨急性脑梗死(ACI)患者血清触珠蛋白(HP)和不对称二甲基精氨酸(ADMA)变化与静脉溶栓治疗后血管再通和预后不良的关系。方法回顾性选择2020年1月至2023年3月于巴彦淖尔市医院接受静脉溶栓治疗的ACI患者260例,根据心肌梗死溶栓试验分为血管再通组196例和血管未通组64例;治疗后90 d,应用改良的Rankin量表评分分为预后良好组159例和预后不良组101例。比较各组血清HP和ADMA水平,用logistic回归分析治疗后血管未通和预后不良的危险因素,用ROC曲线分析血清HP和ADMA水平对治疗后血管未通的预测价值和预后不良的诊断效能。结果血管未通组血清HP和ADMA水平显著高于血管再通组[(2.10±0.21)g/L vs(1.29±0.31)g/L,(1.68±0.19)μmol/L vs(0.69±0.11)μmol/L,P<0.01];HP和ADMA是ACI患者治疗后血管未通的危险因素(P<0.01);二者联合诊断血管未通的曲线下面积为0.869(95%CI:0.830~0.908)。预后不良组血清HP和ADMA水平显著高于预后良好组[(2.27±0.19)g/L vs(1.15±0.34)g/L,(1.72±0.21)μmol/L vs(0.64±0.10),P<0.01];HP和ADMA是治疗后预后不良的影响因素(P<0.01);二者联合诊断预后不良的曲线下面积为0.816(95%CI:0.768~0.865)。结论HP和ADMA在ACI静脉溶栓治疗后血管未通患者和预后不良患者血清中表达升高,二者联合可有效预测静脉溶栓治疗后血管未通和预后不良。

触珠蛋白基因多态性与老年血管性痴呆患者病情严重程度及疾病易感性关系研究

目的探讨触珠蛋白基因多态性与老年血管性痴呆患者病情严重程度及疾病易感性关系。方法选取2018年2月至2023年2月该院收治的80例老年血管性痴呆患者作为血管性痴呆组,另选同期该院收治的80例非血管性痴呆脑卒中人群作为对照组。采用聚合酶链反应-序列特异性引物法测定两组触珠蛋白基因位点基因型及等位基因分布频率,并分析其与血管性痴呆患者病情严重程度及疾病易感性关系。结果血管性痴呆组高脂血症史、糖尿病史占比和总胆固醇、甘油三酯水平高于对照组,差异有统计学意义(P<0.05);各基因型分布符合Hardy-Weinberg平衡定律(P>0.05),血管性痴呆组触珠蛋白2-2基因型频率、触珠蛋白2等位基因频率高于对照组,差异有统计学意义(P<0.05);不同触珠蛋白基因型血管性痴呆患者简易精神状态量表评分、缺血指数量表评分比较差异有统计学意义(P<0.05);多因素Logistic回归分析显示,携带触珠蛋白2-2基因型、携带触珠蛋白2等位基因是影响血管性痴呆发生的独立危险因素(P<0.05)。结论触珠蛋白2-2基因型、触珠蛋白2等位基因分布频率与卒中后血管性痴呆发生有关,且触珠蛋白2-2基因型、触珠蛋白2等位基因分布频率较高者病情更为严重,可为血管性痴呆的早期识别及病情评估提供参考。

利福平联合复方新诺明对复治涂片阳性肺结核炎性因子的影响

目的分析利福平联合复方新诺明辅助治疗对复治涂片阳性肺结核患者疗效和血清炎性因子水平的影响。方法将2017年5月—2022年8月我院收治80例复治涂片阳性肺结核患者使用随机信封法分为观察组及对照组各40例。对照组采用利福平治疗,观察组采用利福平联合复方新诺明辅助治疗;治疗后对患者临床疗效、复发率及痰菌阴转率进行评估,并检测治疗前后血清炎性因子水平。结果治疗后观察组病灶吸收率90.00%高于对照组77.50%,空洞缩小率95.00%高于对照组82.50%,差异均具有统计学意义(均P<0.05);观察组复发率2.50%低于对照组15.00%,痰菌阴转率97.50%高于对照组80.00%,差异均具有统计学意义(均P<0.05);观察组治愈率95.00%高于对照组85.00%,差异具有统计学意义(P<0.05)。治疗后观察组血中白细胞介素-37(IL-37)、触珠蛋白(HP)、骨桥蛋白(OPN)水平均下降,观察组3种因子水平分别为(4.63±0.83)pg·mL^(-1)、(810.38±31.64)μg·mL^(-1)、(189.19±20.74)pg·mL^(-1)低于对照组的(6.33±0.91)pg·mL^(-1)、(1283.73±101.67)μg·mL^(-1)、(456.28±45.92)pg·mL^(-1),差异均具有统计学意义(均P<0.05)。结论利福平联合复方新诺明对复治涂片阳性肺结核患者后有助于提高临床疗效,改善血液中IL-37、HP、OPN水平。

胆碱脂酶、触珠蛋白在反复呼吸道感染儿童血清中的表达水平及其对预后的评估价值

目的探讨胆碱脂酶(CHE)、触珠蛋白(HPT)在反复呼吸道感染(RRTI)儿童血清中的表达水平及其对预后的评估价值。方法选取112例RRTI患儿纳入RRTI组,随机选取同期健康体检儿童95例纳入对照组。根据疾病的严重程度,将RRTI组患儿分为轻度组38例、中度组40例和重度组34例。检测血清CHE、HPT、白细胞介素-1(IL-1)、白细胞介素-6(IL-6)、免疫球蛋白A(IgA)、免疫球蛋白M(IgM)水平以及CD3^(+)、CD3^(+)CD4^(+)水平。分析RRTI患儿的CHE与HPT的相关性。分析血清CHE、HPT的表达水平对RRTI患儿预后的预测价值。结果RRTI组患儿的CHE表达水平低于对照组,HPT水平高于对照组,差异有统计学意义(P<0.05)。重度组RRTI患儿的CHE水平低于中度组和轻度组,中度组低于轻度组;重度组RRTI患儿的HPT水平高于中度组和轻度组,中度组高于轻度组,差异有统计学意义(P<0.05)。RRTI患儿的CHE表达水平与HPT表达水平呈负相关(r=-0.637,P<0.001)。RRTI组的IL-1、IgA、IgM水平和CD3^(+)、CD3^(+)CD4^(+)低于对照组,IL-6水平高于对照组,差异有统计学意义(P<0.05)。RRTI患儿CHE表达水平与IL-1、IgA、IgM、CD3^(+)、CD3^(+)CD4^(+)呈正相关,与IL-6呈负相关;HPT表达水平与IL-1、IgA、IgM、CD3^(+)、CD3^(+)CD4^(+)呈负相关,与IL-6呈正相关(P<0.05)。预后良好RRTI患儿的血清CHE表达水平高于预后不良RRTI患儿,HPT水平低于预后不良RRTI患儿,差异有统计学意义(P<0.05)。CHE、HPT联合预测RRTI患儿预后的曲线下面积(AUC)大于其单独预测的AUC,差异有统计学意义(P<0.05)。结论在RRTI患儿血清中,CHE呈低表达,HPT呈高表达。CHE、HPT联合评估RRTI患儿预后的价值较高。

Shenfu Injection(参附注射液) Suppresses Inflammation by Targeting Haptoglobin and Pentraxin 3 in Rats with Chronic Ischemic Heart Failure

Objective： To investigate the regulatory effects of Shenfu Injection （SFI, 参附注射液） on hemodynamic parameters and serum proteins in rats with post-infarction chronic heart failure （CHF）. Methods： Forty-five healthy Wistar rats were randomized into three groups： sham, heart failure （model） and SFI group. The CHF was induced by left coronary artery ligation. Seven days after the surgical operation, animals in the sham group and the model group received saline （6.2 mL/kg/d）, while animals in the SFI group received SFI （6.2 mL/kg.d） intraperitoneally. Four weeks later, cardiac hemodynamic parameters were measured via the carotid route. The expression of serum proteins was analyzed by two-dimensional electrophoresis and matrixassisted laser desorption/ionization time-of-flight mass spectrometer （MALDI-TOF MS）. Results： Recording of hemodynamic parameters showed that left ventricular systolic pressure （LVSP）, maximum rate of left ventricular pressure （＋dp/dtmax） rise, and maximum rate of left ventricular pressure （-dp/dtmax） decrease, while the left ventricular end diastolic pressure （LVEDP） rose in the model group compared to those in the sham group （P〈0.05）. The results of the MALDI-TOF MS indicated that haptoglobin （HP）, pentraxin 3 （PTX3） and alpha-1- antitrypsin were up-regulated, while serum albumin and 40S ribosomal protein were down-regulated in the model group （P〈0.05）. Compared with the model group, LVSP, ＋dp/dtmax and -dp/dtmax were higher, while LVEDP was lower in the SFI group （P〈0.05）. Expression levels of HP and PTX3 were lower than in the model group （P〈0.05）. Conclusion： SFI could improve hemodynamic function and decrease inflammatory reactions in the pathophysiology of CHF. The serum proteins HP and PTX3 could be potential biomarkers for chronic ischemic heart failure, and they could also be the serum protein targets of SFI.

联合B7-H3和HPT预测脓毒症患者预后不良及列线图预测模型构建

目的 分析血清B7-H3、触珠蛋白(HPT)水平与脓毒症患者病情及预后关系,并分析预后不良的影响因素,构建列线图预测模型。方法 选取汉中市三二〇一医院2018年7月—2021年7月收治的325例脓毒症患者,根据是否休克分为脓毒症休克组(105例)和脓毒症非休克组(220例),观察脓毒症患者住院治疗28 d的生存情况,并分为生存组(200例)和死亡组(125例),记录患者一般资料,检测患者入院第1天血清指标,采用酶联免疫吸附法动态监测患者血清B7-H3和HPT表达水平。采用Logistic回归分析模型和R软件构建列线图预测患者预后不良模型。使用Hosmer-Lemeshow拟合优度检验、校准曲线、ROC曲线对本研究构建的列线图模型预测效能进行评估。结果 入院1、2、7、14 d动态监测患者血清B7-H3、HPT发现,休克组高于非休克组,死亡组高于生存组,差异有统计学意义(P<0.05)。Logistic回归分析结果显示,中性粒细胞百分比(NEU)、C-反应蛋白(CRP)、降钙素原(PCT)、血肌酐(SCr)、序贯器官衰竭评分(SOFA)、白细胞计数(WBC)、血小板(PLT)及B7-H3、HPT是脓毒症患者预后不良的影响因素(P<0.05);入院第1天B7-H3、HPT水平联合预测脓毒症患者预后不良的AUC明显优于各指标单独预测(P<0.05),校准曲线及Hosmer-Lemeshow拟合优度检验脓毒症患者预后不良预测模型(M2),校准曲线斜率接近1(P>0.05)。结论 脓毒症患者血清中B7-H3、HPT异常高表达,与患者病情及预后密切相关,二者联合提高预测脓毒性患者预后不良的准确性。