The Value of the Soluable Intercellular Adhesion Molecule-1 Levels in Matermal Serum for Determination of Occult Chorioamnionitis in Premature Rupture of Membranes

To compare the diagnostic value of soluble intercellular adhesion molecule 1 (sICAM-1) with that of c-reactive protein (CRP) for detecting chorioamnionitis (CAM) in serum of women with premature rupture of membranes (PROM), 55 pregnant women with PROM, including 18 pregnant women with preterm premature rupture of membranes (PPROM) and 20 normal pregnant women at term (TPROM) were studied. Maternal serum were measured by Sandwish enzyme-linked immunoabsorbent assay (ELISA) for sICAM. CAM was histologically confirmed after delivery. The results revealed that (1) maternal serum levels of sICAM-1 and CRP were significantly higher in women with PROM than those without it; (2) maternal serum levels of sICAM-1 and CRP were significantly higher in women with CAM than those without it; (3) serum levels of sICAM-1 in PPROM women were similar to those in TPROM women, whereas serum levels of CRP in PPROM women were significantly higher than those in TPROM women; (4) the sensitivity, specificity, positive predictive value, negative predictive value, Kappa index and area under receiver operating characteristic (ROC) curve of maternal serum sICAM-1 (cutoff 104.7 ng/ml) and CRP(cutoff 1.03 mg/dl) for diagnosing CAM were 100 %, 91.2 %, 87.5 %, 100 %, 0.20, 0.995 and 81.0 %, 73.5 %, 65.4 %, 86.2 %, 0.13, 0.811, respectively; (5) among the mild histological CAM group, severe histological CAM group and clinical CAM group, the difference in maternal serum levels of sICAM-1 were significantly (P<0.001), with the order of concentration from high level to low level corresponding to the severity of CAM. It is concluded that maternal serum level of ICAM-1 is superior to that of CRP as biomarker for diagnosing intraamniotic infection in pregnant women with PROM.

Clinical significance of serum intercellular adhesion molecule-1 detection in patients with hepatocellular carcinoma

INTRODUCTION Since the late 1980s,studies on the expression ofintercellular adhesion molecule-1(ICAM-1)inpatients with malignancies have demonstrated thatICAM-1 may strongly express in two forms in suchdiseases:membranous one on the surface of tumorcells(membrane-bound ICAM-1)and soluble one incirculation(soluble ICAM-1,sICAM-1).

Mild hypothermia effects on intercellular adhesion molecule-1 and serum interleukin-6 expression in brain tissues of a rat focal ischemia model

BACKGROUND： Previous studies have confirmed the neuroprotective effect of mild hypothermia on ischemic brain injury. OBJECTIVE： To investigate the effects of mild hypothermia on intercellular adhesion molecule-1 expression and serum interleukin-6 levels in ischemic brain tissues of focal brain ischemia rats, and to explore the neuroprotective effects of mild hypothermia on ischemic brain injury. DESIGN, TIME AND SETTING： A randomized, controlled, neurobiological experiment was performed at the Central Laboratory, First Affiliated Hospital, Xinxiang Medical College, China from February to July 2006. MATERIALS： Thirty healthy, adult, Sprague Dawley rats were used to establish middle cerebral artery occlusion models using the suture method, The immunohistochemistry （streptavidin-biotin-peroxidase complex method） kit was purchased from Boster, China. Interleukin-6 radioimmunoassay was supplied by Institute of Radioimmunity, Technology Development Center, General Hospital of Chinese PLA. METHODS： The rats were equally and randomly assigned into mild hypothermia and control groups, and middle cerebral artery occlusion models were established. The rectal temperature was maintained at （37 ±0.5）℃ in the control group. In the mild hypothermia group, the rectal temperature was maintained at （33±1）℃. MAIN OUTCOME MEASURES： At 12 hours after model establishment, the ischemic brain hemispheres were coronally sliced at the level of the optic chiasm. The number of intercellular adhesion molecule-1-positive vessels per high-power field was observed with an optical microscope. Serum interleukin-6 levels were measured by radioimmunoassay. RESULTS： Compared with the control group, intercellular adhesion molecule-1 and serum interleukin-6 expressions were significantly decreased in ischemic brain tissues of the mild hypothermia group （P 〈 0.01）. CONCLUSION： Mild hypothermia exhibits a neuroprotective effect by reducing serum interleukin-6 and intercellular adhesion molecule-1 expression following cerebral ischemia.

Expression of Intercellular Adhesion Molecule-1 in Immune Response of Inner Ear

To understand the role of intercellular adhesion molecule-1 (ICAM-1) in immune response of the inner ear, inner ear immune response was induced in rats by inoculation of keyhole limpet hemocyanine (KLH) into the scala tympani of the animals who had been systemically sensitized. The expression of ICAM-1 in the inner ear was immunohistochemically examined. ICAM-1 was found in the epithelium of the spiral modiolar vein (SMV) with its collecting venules (CVs) as early as 6 h after challenge. Expression of ICAM-1 was observed on the epithelium of the endolymphatic sac (ES) and perisaccular region at 12 h. The intensity of ICAM-1 staining reached its peak within 24 - 48 h in these sites of the inner ear. By day 28, most specimens were devoid of appreciable staining for ICAM-1. Our study demonstrates that adhesion molecules play an important role in extravasation of inflammatory cells from the systemic circulation in the process of inner ear immune response. It also shows that cytokines that control expression of adhesion molecules may be released by cells outside ES, besides those cells in the ES.

Changes of soluble intercellular adhesion molecule-1 in the serum from patients with acute cerebral infarction

objective: To observe the changes of soluble intercellular adhesion molecule-1(sICAM-1) in the serum of patients with acute cerebral infarctlon (ACI) and their clinical significance. Methods: The concen-tration of sICAM-1 in the serum of 91 patients with ACI was determined with ELISA and then the results were compared wlth those of 43 patients with cerebral hemorrhage and 30 healthy individuals. Results: In the 24th hour after infarction. the concentration of sICAMu-1 in the serum was significantly higher in patients with ACI than in patients with cerebral hemorrhage and normal controls (P< 0. 01). In the patients with ACI, the concentration exhibited an decreasing tendency in the period from the 24th hour to the 14th day andwas correlated with the focal size of cerebral infarction. During the first 14 days after infarction, the concen-tration was significantly higher in the patients with the complication of infection than in those without. Con-clusion: sICAM-1 is closely correlated with clinical manifestation of ACI.

Relationship of plasma homocysteine, soluble intercellular adhesion molecule-1, high mobility group box 1 protein with carotid intima-media thickness in elderly patients with type 2 diabetes mellitus

Objective:To explore the relationship of plasma homocysteine(Hcy),soluble intercellular adhesion molecule-1(sICAM-1)and high mobility group box 1 protein(HMGB1)with carotid intima-media thickness(c-IMT)in elderly patients with type 2 diabetes mellitus.Methods:A total of 100 elderly patients who were diagnosed as type 2 diabetes mellitus in Baogang Hospital of Inner Mongolia from June 2017 to May 2020 were chosen as research objects.According to c-IMT,they were divided into the normal group(n=35),the mild to moderate group(n=41)and the severe group(n=24).The expression levels of plasma Hcy,sICAM-1 and HMGB1 were compared between groups respectively.Pearson’s correlation coefficient was used to analyze the relationship of plasma Hcy,sICAM-1,HMGB1 with c-IMT.Results:The comparison in plasma Hcy,sICAM-1,HMGB1 and c-IMT among the three groups of patients was of statistical significance(p<.05).The results of correlation analysis showed that the expression levels of plasma Hcy,sICAM-1 and HMGB1 were positively correlated with c-IMT in elderly patients with type 2 diabetes mellitus(r=.627,.598,.614;p<.05).Conclusions:The expression levels of plasma Hcy,sICAM-1 and HMGB1 are abnormally increased in elderly patients with type 2 diabetes mellitus,and related to c-IMT,which can provide a strong evidence for clinical diagnosis and treatment by detecting their levels in clinical practice.

Intercellular Adhension Molecule-1 in the Pathogenesis of Heroin-induced Acute Lung Injury in Rats

The expression of intercellular adhesion molecule-1 (ICAM-1) in the pathogenesis of heroin-induced acute lung injury (ALI) in rats was investigated. The model of ALI was established by intravenous injection of heroin into tail vein in rats. Thirty-six rats were randomly divided into heroin-treated groups (1 h, 2 h, 4 h, 6 h and 24 h) and normal control group. Changes in histopathologic morphology and biological markers of ALI were measured. The expression of ICAM-1 in lung tissue was detected by using immunohistochemistry and RT-PCR. The results showed that the W/D ratio and protein contents in BALF of the heroin-treated groups were significantly higher than that of the control group (P<0.01). The histopathological changes in the lung tissue were more obvious in heroin-treated groups. The ICAM-1 protein and mRNA expression in the lung tissue of heroin-treated groups were significantly increased as compared with that of the control group (P<0.01), and correlated with the ALI parameters in a time-dependent manner. Increasing of ICAM-1 expression was involved in the formation of heroin-induced lung injury. Furthermore, the level of expression was positively correlated with the severity of lung injury.

Ubiquitin Reduces Expression of Intercellular Adhesion Molecules and Tumor Necrosis Factor-α in Lung Tissue of Experimental Acute Lung Injury

Background Intercellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) are two important cytokines in inflammatory response, which may induce rolling and adhesion of both leukocytes and lymphocytes, while modulating vascular permeability at the same time. These adhesion molecules usually serve as surrogate markers of activation and injury of vascular endothelial cells. Tumor necrosis factor-α (TNF-α) is a key factor to induce the expression and production of the above cell adhesion molecules. However, it remains to be elucidated whether exogenous ubiquitin exerts any effect on the cytokines in sepsis-induced ALI. Methods Sixty mice were devided randomly into five groups with twelve mice in each group, i.e. CLP group, SHAM group, UB1 group (10 mg/kg), UB2 group (5 mg/kg) and UB3 group(1 mg/kg). Mice of SHAM group underwent sham operation, and other four groups underwent CLP. Six hours after surgery, mice of three UB groups received ubiquitin by caudal vein injection while CLP and SHAM group received vehicle. Seven hours after surgery, blood and lungs of all mice were collected. ICAM-1, VCAM-1 and TNF-α level of 9% lung homogenate and serum TNF-α level were measured by ELISA. Results Pulmonary ICAM-1, VCAM-1 and TNF-α level of three UB groups were lower than CLP and SHAM group, and there were several comparisons with a statistically significant difference. Serum TNF-α level of three UB groups were slightly lower than CLP group, but far higher than SHAM group. Pulmonary ICAM-1 level, VCAM-1 level and serum TNF-α level of UB3 group were lower than UB1 and UB2 group, and there was a significant difference in VCAM-1 between UB3 and UB1 group. Pulmonary TNF-α level of UB3 group was slightly higher than UB1 and UB2 group.

重症胰腺炎患者血清载脂蛋白B/载脂蛋白A1、微管相关蛋白1-轻链3和细胞间黏附分子-1水平在预测并发感染性胰腺坏死中的价值

目的观察重症胰腺炎(SAP)患者血清载脂蛋白B与载脂蛋白A1比值(ApoB/ApoA1)、微管相关蛋白1-轻链3(MAP1-LC3)及细胞间黏附分子-1(ICAM-1)水平,并分析其与患者并发感染性胰腺坏死(IPN)的关系和预测价值。方法选取2019年1月至2022年1月于该院收治的172例SAP患者作为SAP组。收集临床资料及外周静脉血标本,检测患者血清ApoB/ApoA1、MAP1-LC3和ICAM-1水平,同期选取该院70例体检健康者作为对照组。比较SAP患者与体检健康者的血清ApoB/ApoA1、MAP1-LC3和ICAM-1水平差异;根据SAP患者后续有无并发IPN分为IPN组和非IPN组。采用单因素及多因素分析比较两组患者临床资料,分析血清ApoB/ApoA1、MAP1-LC3、ICAM-1水平及其他相关因素与SAP患者并发IPN的关系;并通过绘制受试者工作特征(ROC)曲线,分析血清ApoB/ApoA1、LC3和ICAM-1水平用于预测SAP患者并发IPN的价值。结果SAP组血清ApoB/ApoA1、MAP1-LC3、ICAM-1水平均高于对照组(均P<0.05);单因素分析显示,IPN组ApoB/ApoA1、MAP1-LC3及ICAM-1水平均高于非IPN组(均P<0.05),多因素分析显示,ApoB/ApoA1(β=2.309,P=0.027)、MAP1-LC3(β=5.447,P=0.037)及ICAM-1(β=0.039,P=0.045)水平均是SAP患者并发IPN的影响因素。血清ApoB/ApoA1、MAP1-LC3及ICAM-1水平预测SAP患者并发IPN的曲线下面积(AUC)分别为0.761(95%CI:0.683~0.840)、0.765(95%CI:0.681~0.848)、0.882(95%CI:0.829~0.935);灵敏度分别为76.1%、68.7%、71.6%,特异度分别为61.0%、89.5%、91.4%。联合预测的AUC为0.957,灵敏度为85.1%,特异度为96.2%。结论血清ApoB/ApoA1、MAP1-LC3、ICAM-1水平是SAP患者并发IPN的影响因素,并发IPN的患者ApoB/ApoA1、MAP1-LC3和ICAM-1水平更高,这些指标对于预测SAP患者并发IPN具有一定的价值。

Pingyangmycin-regulated Expressions of Adhesion Molecules in Human Venous Malformation Endothelial Cells

Pingyangmycin (bleomycin A5 hydrochloride,PYM) is one of the anti-neoplastic agents which have been commonly used to treat venous malformations.However,the underlying mechanism by which PYM treats venous malformations remains poorly understood.It was reported that venous endothelial cells could recruit neutrophils via adhesion molecules (E-selectin,ICAM-1,ICAM-3,VCAM-1) during the acute/chronic inflammation and subsequent histological fibrosis after sclerotherapy with PYM.This study explored if the expression of E-selectin,ICAM-1,ICAM-3 and VCAM-1 in human venous malformation endothelial cells could be affected by PYM.HVMECs were cultured from human venous malformation tissue.Expressions of E-selectin,ICAM-1,ICAM-3 and VCAM-1 on HVMECs in response to PYM were analyzed by cell ELISA.The relative levels of mRNA expression in the cells were semi-quantified.The results showed that PYM up-regulated the expressions of E-selectin,ICAM-3,VCAM-1 and ICAM-1 in both time-and concentration-dependent manner.Our findings suggested that PYM could induce the expression of adhesion molecules in HVMECs,which might be a possible mechanism by which sclerotherapy by intralesional injection of PYM treats venous malformations.

Increased expression of intercellular adhesion molecule-1 in mouse focal cerebral ischemia model

OBJECTIVE: To quantitatively measure the temporal profiles of intercellular adhesion molecule-1 (ICAM-1) protein in mouse brain after middle cerebral artery occlusion (MCAO). METHODS: Adult male CD-1 mice received 0, 3, 6, 12, 24, 48 and 72 hour(s) of permanent MCAO with an intraluminal suture technique. The degree and the extent of occlusion were determined using a laser Doppler flowmeter. ICAM-1 positive expression in ischemic regions was determined immunohistochemically and ICAM-1 protein was quantitatively measured using immunoprecipitation and Western blot analysis. RESULTS: After MCAO, surface cerebral blood flow (CBF) in the ischemic hemisphere decreased to 9%-15% of the baseline in each time point of 7 to 8 animals. There were no significant differences in CBF measurement during occlusion between groups. Immunohistochemistry showed that ICAM-1 positive microvascular endothelial cells were observed both in the ischemic core and in the perifocal region. There was a tendency for increasing expression of ICAM-1 positive microvascular endothelial cells from the ischemic core to the ischemic margin. Western blot analysis showed that ICAM-1 expression in the ischemic hemisphere began to increase 3 h after MCAO, peaked at 6 h to 12 h, and persisted to 72 h. CONCLUSIONS: ICAM-1 expression increases in mice with permanent MCAO because ICAM-1 can mediate leukocyte-endothelial adhesion and progression of leukocyte infiltration after permanent focal cerebral ischemia. ICAM-1 is one of the important factors participating in ischemic cerebral damage and pathogenesis of stroke.

Polymorphism K469E of intercellular adhesion molecule-1 gene and restenosis after coronary stenting in Chinese patients

Background Inflammation is a major cause of restenosis after coronary stenting. Intercellular adhesion molecule-1 (ICAM-1) is an important adhesion molecule that plays a key role in the tight adhesion between leukocytes and vascular endothelium. The object of this study was to investigate the association between the K469E polymorphism of the ICAM-1 gene and restenosis after coronary stenting in North Chinese population.Methods The ICAM-1 K469E polymorphism was genotyped using polymerase chain reaction-restriction fragment length polymorphism method in 124 patients who had undergone coronary stenting and coronary angiography at least 3 months earlier. Information on clinical risk factors and procedure-related data were also collected.Results Of 124 enrolled patients in total, there were 72 cases of in-stent restenosis. The restenosis rate in this population was 58.1 %. The frequencies of the three possible genotypes of the ICAM-1 K469E polymorphism were: KK genotype 50. 8%, EE genotype 41. 9%, and EK genotype 41. 9%. Among restenosis patients, the frequency of the KK genotype was 58. 3% and the frequency of E allele carriers was 41.7%. Among non-restenosis patients, the frequency of the KK genotype was 40.4%, and the frequency of E allele carriers was 59. 6%. The distribution of these two genotype groups between restenosis and non-restenosis patients was significantly different (P=0. 049). Using multivariate logistic regression, the difference between the two groups was more apparent. The odds ratio of KK homozygotes vs E allele carriers was 2. 6, with 95% confidence interval 1. 2 -5. 8 ( P = 0. 018). After grading of risk factors, we found that the KK genotype was a stronger predictor of in-stent restenosis in obesity or hyperlipemia patients, with an odds ratio of 9. 3 and 3. 7, respectively (P <0. 05).Conclusion In our study population, KK homozygotes of the ICAM-1 codon 469 mutation had a higher risk of restenosis after coronary stenting, especially in the case of obese or hyperlipemia patients.

Cardiotrophin-1 induces intercellular adhesion molecule-1 expression by nuclear factor κB activation in human umbilical vein endothelial cells

Background In addition to elevated concentrations of cytokines, patients with congestive endothelial dysfunction and increased plasma concentrations of adhesion molecules heart failure （CHF） show ke intercellular adhesion molecule-1 （ICAM-1）. Furthermore, the concentration of cardiotrophin-1 （CT-1） - a cytokine of the interleukin-6 superfamily - is increased in CHF. We tested the hypothesis whether CT-1 is able to induce ICAM-1 in human umbilical vein endothelial cells （HUVEC）. Furthermore we examined the signalling mechanisms of CT-1 mediated ICAM-1 expression. Methods Confluent layers of HUVEC were incubated with increasing concentrations of CT-1 （5 to 100 ng/ml） for different periods. ICAM-1 mRNA was determined by real-time polymerase chain reaction （PCR） and ICAM-1 surface expression by fluorescence-activated cell sorter （FACS） analysis and soluble ICAM-1 （slCAM-1） in the culture supernatant by enzyme linked immunosorbent assay （ELISA）. To clarify the signalling pathway of CT-1 induced ICAM-1 expression we used various inhibitors of possible signal transducing molecules, electromobility shift assay （EMSA） and Western blot analysis. Results CT-1 induced ICAM-1 mRNA （1.8±0.8 fold increase compared to unstimulated cells after 6 hours） and protein （1.4±0.2 fold increase compared to unstimulated cells after 48 hours） in HUVEC in a time- and concentration-dependent manner. EMSA experiments show that CT-1 causes nuclear factor （NF） κB activation. Because parthenolide could inhibit CT-1 induced ICAM-1 expression NFκB activation is required in this pathway. CT-1 did not activate extracellular signal regulated kinases （ERK）, c-Jun N-terminal kinase （JNK） and p38. Conclusion CT-1 is able to induce ICAM-1 in endothelial cells by NFκB activation. These results may explain in part elevated ICAM-1 concentrations in patients with CHF and endothelial dysfunction.

自身免疫性肝炎和原发性胆汁性肝硬化患者检测可溶性细胞间黏附分子1的临床价值

目的探讨原发性胆汁性肝硬化(PBC)和自身免疫性肝炎(AIH)患者中检测可溶性细胞间黏附分子1(sICAM-1)的临床价值。方法选择2012年6月-2013年9月住院及门诊就诊的PBC患者61例,其中初发患者29例,缓解期患者21例,复发患者11例;AIH患者共59例,其中初发患者26例,缓解期患者20例,复发患者13例。健康对照50例。血清sICAM-1测定方法为双抗体夹心酶联免疫吸附法,采用生物化学酶法测定血清ALT、TBil。各组间比较采用方差分析,相关性采用Pearson相关分析。结果PBC患者中,初发组和复发组sICAM-1水平均明显高于缓解组和对照组(P均=0.000);初发组和复发组之间sICAM-1水平差异无统计学意义(P=0.484);缓解组sICAM-1水平高于对照组(P=0.000);AIH患者中,初发组和复发组sICAM-1水平均明显高于缓解组和对照组(P均=0.000);初发组和复发组之间sICAM-1水平差异无统计学意义(P=0.802);缓解组和对照组之间sICAM-1水平差异无统计学意义(P=0.281);PBC、AIH患者血清sICAM-1与ALT呈正相关(r=0.664,P=0.000;r=0.784,P=0.000);PBC、AIH患者血清sICAM-1与TBil呈正相关(r=0.715,P=0.000;r=0.580,P=0.000)。结论 sICAM-1可能参与PBC、AIH的免疫损伤机制,PBC、AIH患者血清sICAM-1水平升高程度与肝损害严重程度有密切关系,临床上动态观察其血清水平的变化,可望在病情活动评估、判断预后、指导治疗中起重要作用。

鼻息肉组织半乳凝素3和胞间黏附分子1表达在嗜酸细胞浸润中的意义

鼻息肉的发病机制至今尚不清楚,近年研究结果表明,鼻息肉是鼻黏膜的慢性、持续性嗜酸细胞（eosinophil,Eos）性炎症。Bachert等曾指出揭示局部大量Eos浸润机制是了解鼻息肉本质的首要问题。国内、外一些研究,包括我们以前的报道证明鼻息肉组织中Eos大量聚集,

鼻息肉中细胞间黏附分子1和E-选择素的表达及意义

鼻息肉是耳鼻咽喉科常见病,严重危害人们身心健康。鼻息肉发病机制至今仍未完全阐明,众多研究表明嗜酸性粒细胞（eosinophils,Eos）浸润是鼻息肉最显著的病理特征。因此,探讨以Eos为代表的炎性细胞聚集和活化成为研究鼻息肉发病机制的热点。本文拟通过分析鼻息肉组织中细胞间黏附分子1（intercellular adhesion molecule-1,ICAM．1）、E-选择素的表达，探讨其与Eos浸润及鼻息肉形成的关系。

卡维地洛联合尼可地尔治疗老年冠心病心绞痛患者的效果及对sICAM-1和MPO水平的影响

目的探讨卡维地洛联合尼可地尔治疗老年冠心病心绞痛患者的效果及对可溶性细胞间黏附分子-1(sICAM-1)和髓过氧化物酶(MPO)水平的影响。方法选取2016年1月~2019年1月北京市回民医院收治的166例老年冠心病心绞痛患者作为研究对象。根据治疗方案分为对照组和研究组,每组各83例。对照组应用卡维地洛治疗,研究组在对照组基础上应用尼可地尔治疗。观察并记录两组治疗有效率,sICAM-1、MPO、可溶性P-选择素水平,心率及血压水平。结果治疗后研究组有效率高于对照组,差异有统计学意义(P <0.05);治疗前两组sICAM-1、MPO、可溶性P-选择素水平比较,差异无统计学意义(P> 0.05),治疗后两组sICAM-1、MPO、可溶性P-选择素水平低于治疗前,且观察组低于对照组,差异均有统计学意义(均P <0.05);治疗前两组心率及血压水平比较,差异无统计学意义(P> 0.05)。治疗后两组心率及血压水平低于治疗前,且研究组低于对照组,差异均有统计学意义(均P <0.05)。结论卡维地洛联合尼可地尔治疗老年冠心病心绞痛的有效率高,还可改善患者心室功能、心率、血压等情况。

糖尿病肾病患者血清可溶性细胞间黏附分子1检测的临床意义

目的:探讨糖尿病肾病患者的血清sICAM-1水平在糖尿病肾病发生、发展过程中的作用及临床意义。方法:应用酶联免疫吸附法(ELISA)检测了60例2型糖尿病患者血清sICAM-1水平,并与30例健康人作对照,且与空腹血糖、尿微量白蛋白进行相关分析。结果:2型糖尿病患者血清sICAM-1水平高于对照组,糖尿病肾病组高于糖尿病无肾病组,糖尿病无肾病组高于正常对照组,差异有显著意义(P<0.01),且与空腹血糖、尿微量白蛋白等密切相关。结论:血清sICAM-1参与了糖尿病肾病的病变过程,可作为糖尿病肾病病情变化的监测指标。

Increased Risk of Neonatal Pneumonia in Pregnant Women with Atypical Pre-Labor Rupture of Membrane Assessed at Pregnancy Week 39

Purpose: Neonatal pneumonia is a major newborn disease with a high morbidity rate. We aimed to evaluate whether atypical prelabor rupture of membranes (PROM) is a high-risk factor for causing neonatal pneumonia in a prospective real-world study. Patients and Methods: A total of 250 pregnant women at pregnancy week 39 were non-selectively recruited. All were examined by PROM and neonatal pneumonia related clinical, bedside and lab tests, including body temperature, blood pressure, increased vagina discharge, posterior vault pooling, abdominal tenderness, WBC count, nitrazine test, amniotic fluid index, Leakection (a sICAM-1 based lateral flow immunoassay) and vagina streptococcus examinations. Increased vagina discharge with a Leakection positivity was adopted as a working criterium for identifying atypical PROM. Neonatal pneumonia was diagnosed based on the clinical presentation and lab tests. Results: Twenty cases of neonatal pneumonia (8.0%) were diagnosed after the deliveries of the 250 pregnant women. In these neonatal pneumonia cases, 12 (16.7%) occurred in 72 deliveries with atypical PROM, 2 (16.7%) in 12 deliveries with typical PROM, and 6 (3.6%) in 166 deliveries with non-PROM. Conclusion: In this real-world study, we find that a systematic screening at pregnancy week 39 was very meaningful in revealing atypical PROM. Moreover, atypical PROM is a major risk factor for neonatal pneumonia. Therefore, an early diagnosis and intervention on atypical PROM could potentially reduce the occurrence of neonatal pneumonia.