糖尿病足患者平均血小板体积变化及与糖代谢的关系

目的:分析糖尿病足(DF)患者平均血小板体积(MPV)变化及其与空腹血糖(FBG)和糖化血红蛋白(HbAlc)的相关性。方法:80例2型糖尿病(T2DM)患者,按照是否发生DF分为DF组(n=42)和非DF组(NDF组,n=38),另选同期体检者作为对照组(NC组,n=40),采用实验室常规方法检测各组MPV、HbAlc和FBG水平并比较组间差异,分析相关性。结果:NDF组与NC组MPV水平比较无显著性差异(P0.05),DF组MPV明显高于NC组和NDF组(P0.05)。DF组和NDF组HbAlc明显高于NC组(P0.01)。DF组和NDF组FBG均显著高于NC组(P0.01),DF组FBG明显高于NDF组(P0.01)。NDF组和DF组MPV与HbAlc和FBG均呈显著正相关(P0.05)。结论:MPV可能参与了DF的发展过程。     

原发ITP患者外周血维生素D3水平与维生素D受体表达的相关性研究

目的 研究成人原发免疫性血小板减少症(ITP)患者血清中25-羟维生素D3[25-(OH)-D3]、维生素D活性指标与维生素D受体表达的相关性.方法 选择开滦总医院2017年1月至2019年12月收治的30例ITP患者作为研究对象,设为ITP组;选择同期来院体检的30例健康体检者作为对照组,抽取外周血,检测血清中25-...     

血小板常温保存对血小板计数、平均体积及分布宽度的影响

目的评估血小板计数、平均体积及分布宽度在血小板保存过程中的变化。方法来自于自愿献血者的30例单采血小板,置于血小板常温保存箱保存5d。分别在保存的第1d、第3d、第5d留取样品检测血小板计数、平均体积及分布宽度。结果随着保存时间的延长,血小板计数、平均体积及分布宽度没有发生明显改变(>0.05)。结论血小板的体外保存对血小板计数、平均体积及分布宽度无影响。     

新生儿维生素D水平与肺炎炎症指标水平的相关性

目的:分析新生儿维生素D水平与肺炎炎症指标水平的相关性,旨在为临床新生儿肺炎的预防和病情评估提供依据.方法:选择2020年7月至2021年7月苏州大学附属第二医院收治的150例新生儿肺炎患儿为观察组,再选择同期健康体检的150例新生儿为对照组.将观察组分为观察A组、观察B组,观察A组行拉氧头孢治疗,观察B组行拉氧头孢联...     

维生素D与心血管疾病关系的研究进展

维生素D可通过多种途径发挥与心血管疾病相关的非骨骼效应。本文综述维生素D如何参与炎症反应和血栓形成、如何影响内皮细胞和平滑肌细胞功能、如何调控肾素-血管紧张素系统(Renin-Angiotensin System,RAS)、如何钙化血管进而引发心血管疾病的研究进展,为临床心血管疾病的防治研究提供资料。     

孕中期孕妇外周血维生素D水平与贫血的相关性研究

目的 分析孕中期孕妇外周血25-羟维生素D[25(OH)D]水平与贫血的关系.方法 选取2019年1月至2020年12月期间在我院就诊的贫血孕妇322例为本研究的贫血组,选取同期血红蛋白在正常参考区间内的孕妇322例为本研究的孕期对照组,选取同期在我院体检的血红蛋白在正常参考区间内的正常未孕女性100例为未孕对照组,收...     

早产儿血清维生素D水平与智能发育的相关性研究

目的探讨早产儿维生素D(vitamin D,VitD)水平与智能发育的相关性。方法选取我院2017年1月至2018年1月收治的685例早产儿开展回顾性分析,以出生后24h内血清25-羟维生素D[25-hydroxyvitamin D,25(OH)D]水平≥所有早产儿的平均水平为高水平组,血清25(OH)D水平<所有早产儿的平均水平为低水平组,比较两组的一般临床资料、维生素D情况,评估两组的智力发育水平;依据早产儿胎龄不同分为极早早产儿组(<28周)和常规早产儿组(28~32周),比较两组的DST及BSID评分,采用Pearson相关性分析血清25(OH)D水平与智能水平之间的相关性。结果纳入685例早产儿的血清25(OH)D水平为56.59±15.43nmol/L,高水平组365例,血清25(OH)D水平为83.41±12.64nmol/L,低水平组320例,血清25(OH)D水平为38.42±13.22nmol/L;高水平组的MDI、PDI及DQ、MI评分显著高于低水平组(P<0.05);经相关性分析,血清25(OH)D水平与MDI、PDI及DQ、MI均呈正相关(P<0.05)。结论早产儿维生素D水平与其智力发育水平呈正相关,其能促进神经发育,提高智力水平。     

平均血小板体积和D-D测定在疑似深静脉血栓患者中的应用

目的:通过测定分析急性深静脉血栓栓塞(DVT)患者的平均血小板体积(MPV)和D-二聚体(D-D)水平,旨在探讨联合使用该两项目在急性DVT中的诊断价值。方法:采集72例疑似急性DVT患者的血液,测定MPV和D-D。结果:15例经双联超声检查确诊为急性DVT患者的MPV(13.0±1.56)fl显著高于非急性DVT患者MPV(8.76±1.07)fl(P<0.01)。而且D-D结果亦显著高于非DVT患者(P<0.01)。取MPV阈值为11.0fl时,MPV诊断灵敏度为71.3%,特异性为38.6%;取D-D阈值为0.5mg/L时,诊断灵敏度96.2%,特异性32.7%;当联合应用MPV和D-D时,诊断特异性上升到71.2%。结论:测定结果提示,MPV升高与急性DVT有关,MPV升高可增加D-D对急性DVT的诊断特异性。     

血清25羟维生素D及维生素D结合蛋白水平与慢性荨麻疹相关性研究

目的 检测慢性荨麻疹(CU)患者外周血中25(OH)D及维生素D结合蛋白(VDBP)水平并探讨其临床意义.方法 ELISA方法检测30例CU患者和30例对照组血清中25(OH)D和VDBP水平,并分析两组间的差异及25 (OH)D和VDBP水平的相关性.结果 血清25(OH)D水平在CU组中显著低于对照组,差异有统计学意义(P＜0.001).对照组和CU组血清VDBP水平无明显差异(P＞0.05).CU组中25(OH)D缺乏/不足的比例显著高于对照组(P＜0.05).结论 CU患者外周血中25(OH)D水平显著下降,VDBP水平未见明显变化.25(OH)D水平与疾病严重程度及病程无显著相关性.维生素D及VDBP与CU的关系仍需大样本研究.     

血清25羟基维生素D与哮喘相关性研究

目的 探讨哮喘患者血清25羟基维生素D与肺功能及哮喘严重程度的相关性.方法 选取哮喘患者66例及同期健康体检者23例,将哮喘患者分为轻度组、中度组和重度组,通过化学发光法测定血清25羟基维生素D浓度,用肺功能仪检测用力肺活量(forced vital capacity,FVC)、第1秒最大呼气量(forced expiratory volume in one second,FEVl)、第1秒用力呼气容积占预计值的百分比(FEV1％of predicted,FEV1％ pred)及第1秒最大呼气率(FEV1/FVC％).结果 83％(55/66)哮喘患者血清25羟基维生素D不足,轻度、中度和重度哮喘患者血清维生素D浓度显著低于对照组(P＜0.05),重度组血清25羟基维生素D平均水平最低,哮喘组血清25(OH)D浓度与FEV1％pred呈正相关(r=0.63,P＜0.05).结论 哮喘患者血清维生素D普遍缺乏,血清25羟基维生素D低水平与其哮喘严重性有关,与肺功能呈正相关.     

MPV与冠心病心力衰竭患者预后的相关性研究

目的 探讨血小板平均体积(mean platelet volume,MPV)与冠心病心衰患者预后的相关性,同时评价MPV是否可以提供独立于N末端B型钠尿肽原(N-terminal pro-brain natriuretic peptide,NT-proBNP)以外的预后信息.方法 选择阜外医院因冠心病心衰的住院患者503例,记录他们入院时的NT-proBNP、MPV、左室射血分数(left ventricular ejection fraction,LVEF)以及其他临床指标.随访患者住院期间和出院后的死亡及再住院情况.结果 中位随访693天后,230例发生再住院和死亡事件.多变量分析可以看出,MPV是冠心病心衰预后的独立危险因素[HR:1.220(1.048,1.419),P=0.017];在Kaplan-Meier分析中,将受试者以MPV、NT-proBNP中位数为分界线分2组,发现MPV、NT-proBNP低于中位数组的生存率显著高于MPV、NT-proBNP高于中位数组,COX风险回归模型显示,MPV＞10.3％且NT-proBNP＞1248.4fmol/mL组发生终点事件的风险比为4组中最高[HR:7.32(4.37,17.52)].结论 联合MPV和NT-proBNP检测可以提高单独检测NT-proBNP对心衰患者死亡的预测价值,提供独立于NT-proBNP以外的预测信息.     

High Mean Platelet Volume Is Associated with Cerebral White Matter Hyperintensities in Non-Stroke Individuals

PurposeThe mean platelet volume (MPV) is regarded as a marker for thrombosis, atherosclerosis, and inflammation in various vascular diseases. However, it still remains unclear whether plasma MPV is associated with cerebral white matter hyperintensities (WMH) and cerebral microvascular pathology in the elderly population.Materials and MethodsWe examined whether MPV level is associated with the presence of cerebral WMH on brain magnetic resonance imaging from 870 non-stroke outpatient subjects. The subjects were divided into three groups according to the consecutive level of MPV (low T1, middle T2, and high T3 MPV tertile groups). To determine the association of MPV levels with the WMH, logistic regression and receiver operating characteristic curve analyses were conducted.ResultsSubjects with higher MPV level were older and more likely to have hypertension, diabetes mellitus, and low renal function. Cerebral WMH were more prevalent in subjects with higher MPV level. After adjusting for confounding factors, moderate to severe cerebral WMH were significantly associated with high MPV tertile level. This association remained significant after adjusting for other cerebral vascular pathologies. T2 [odds ratio (OR): 1.49, 95% confidence interval (CI): 1.03–2.15] and T3 MPV tertile groups (OR: 1.51, 95%CI: 1.04–2.20) had more cerebral WMH lesions compared to T1 MPV tertile group. In addition, the subjects with higher Fazekas scores showed higher MPV level (p=0.020).ConclusionWe found that high MPV level is independently associated with cerebral WMH. This result suggests that platelet activation plays a role in the development of cerebral WMH.     

Mean Platelet Volume Is Elevated in Patients with Psoriasis Vulgaris

Purpose

This retrospective study was done to investigate the mean platelet volume (MPV) level in patients with psoriasis vulgaris and its relationship with disease severity.

Materials and Methods

We undertook a cross-sectional study on 176 patients and 101 healthy controls to examine the association between MPV and psoriasis. Various clinical and laboratory parameters were analyzed and compared.

Results

Platelet distribution width and MPV were significantly higher in patients with psoriasis than controls. In addition, there was positive correlation between Psoriasis Area Severity Index (PASI) and MPV. When psoriasis patients were grouped into mild psoriasis (PASI<10) and moderate to severe psoriasis (PASI≥10), the MPV of the latter group was significantly elevated. Nevertheless, patients with higher MPV level (MPV≥10.4 fL) did not show higher PASI than lower MPV level (MPV<10.4 fL). MPV levels significantly decreased after improvements of psoriasis with various treatments. The variations of MPV and PASI also showed significant correlation.

Conclusion

We have shown that MPV is increased in psoriasis patients and correlates with disease severity. Therefore, MPV levels may be considered as a marker of disease severity of psoriasis.     

Correlation Between Serum Vitamin D Level and the Severity of Atopic Dermatitis Associated With Food Sensitization

Purpose

A growing body of literature has linked vitamin D deficiency with allergic diseases, particularly atopic dermatitis (AD). In this study, we investigated the association between serum vitamin D status and the clinical manifestation of AD. We also developed an analytical method for the simultaneous determination of 25-hydroxy vitamin D₃ (25(OH)D₃), using liquid chromatography (LC) coupled with tandem mass spectrometry (MS/MS).

Methods

This study included 157 patients (79 males and 78 females) with AD, aged 4 months to 56 years. We evaluated disease severity using the SCORing Atopic Dermatitis (SCORAD) index. Serum levels of 25(OH)D₃ were determined by LC coupled with MS/MS. Total IgE and specific IgE levels were assayed using the immunoCAP system. ANOVA was used for statistical evaluation.

Results

We found mild, moderate, and severe AD in 30 (11.1%), 87 (55.4%), and 40 (25.5%) patients, respectively. There was no significant correlation between serum levels of 25(OH)D₃ and AD severity. However, among the 36 patients with food sensitization, the mean±SD serum levels of 25(OH)D₃ were significantly higher (P<0.05) in patients with mild disease (21.2±5.18 ng/mL) compared with the levels in patients with moderate (17.9±4.02 ng/mL) or severe AD (13.3±5.11 ng/mL) disease.

Conclusions

These results suggest that vitamin D deficiency is related to the severity of AD associated with food sensitization. Thus, these data suggest a role for vitamin D in a select group of AD patients.     

维生素D水平与成人哮喘及非哮喘的相关性研究

目的 评估哮喘及非哮喘者的血清维生素D水平及其与肺功能、嗜酸性粒细胞计数的相关性。方法 选取我院2015年9月1日~2016年1月20日收治的85例哮喘患者以及73例健康体检者作为研究对象。根据皮肤过敏试验结果将哮喘患者分为过敏哮喘组56例和非过敏性哮喘组29例,对比两亚组间维生素D水平的差异性;采外周血测量嗜酸性粒细胞计数,用肺功能仪测量肺功能,包括肺活量（FVC）、第1秒最大呼气量（FEV1）、第1秒最大呼气率（FEV1/FVC）,分析过敏哮喘组和非过敏性哮喘组维生素D水平与肺功能、嗜酸性粒细胞计数的相关性。结果 哮喘患者的维生素D水平为（14.36±0.57）ng/ml,低于健康体检组的（22.13±0.84）ng/ml,统计学意义显著（P＜0.01）。过敏哮喘组和非过敏哮喘组的维生素D水平比较,差异无统计学意义（P＞0.05）。低水平维生素D患哮喘的风险增加1.2倍（优势比:1.194,95%可信区间:1.194~1.286,P＜0.01）。维生素D水平与肺功能和嗜酸性粒细胞计数水平无显著相关性。结论 哮喘患者的维生素D水平低于正常人群,维生素D的缺乏与哮喘的发生密切相关;维生素D水平与肺功能、嗜酸性粒细胞计数没有相关性。     

Vitamin D and systemic lupus erythematosus - The hype and the hope

Over the past 20 years, much has been written about the potential role of vitamin D in on adverse health outcomes. In recent years, evidence has accumulated regarding the effect of vitamin D on the immune system, and its different cells. Some studies have noted lower vitamin D concentrations in patients with SLE. These epidemiological data still not answer the question: is vitamin D deficiency the cause or the effect? To answer this, we will discuss the association between vitamin D deficiency and SLE and review the evidence from interventional studies.     

A New Diagnostic Marker For Acute Pulmonary Embolism In Emergency Department: Mean Platelet Volume

Objective

To investigate the diagnostic importance of mean platelet volume (MPV) on acute pulmonary embolism (APE) in the emergency Department (ED).

Methods

Subjects were selected from patients admitted to ED with clinically suspected APE. Demographic, anthropometric and serologic data were collected for each patient.

Results

A total of 315 consecutive patients were analyzed, including 150 patients (53.44 ± 15.14 y; 92 men/58 women) in APE group and 165 patients (49.80 ±13.76y; 94 men/71 women) in the control group. MPV in the APE group was significantly higher than in the control group (9.42±1.22 fl vs. 8.04±0.89 fl, p<0.0001). The best cut-off values for MPV when predicting APE in patients with clinically suspected APE presenting at the ED were 8.55 fl (sensitivity 82.2%; specificity 52.3%).

Conclusions

MPV is a helpful parameter for the diagnosis of APE in ED, for the first time in the literature.     

孕妇血清维生素A、维生素E、25-羟基维生素D与 子痫前期的相关性研究

目的 探讨孕妇血清维生素A、维生素E、25-羟基维生素D水平与子痫前期的相关性。方法 选择2016年3月~2017年10月在我院产检的单胎孕妇为研究对象,其中子痫前期组72例,健康对照组30例。分析血清维生素A、维生素E、25-羟基维生素D水平与子痫前期的相关性及其诊断价值。结果 在孕10~14周时,两组孕妇孕血清维生素A、维生素E 、25-羟基维生素D水平比较,差异无统计学意义（P＞0.05）;孕24~28周时,子痫前期组血清维生素A、维生素E 、25-羟基维生素D水平低于对照组水平（P＜0.05）;多因素Logistic回归分析结果显示,孕24~28周血清维生素A、维生素E、25-羟基维生素D水平与子痫前期发病具有显著的相关性;回归模型显示,血清维生素A诊断子痫前期的AUC为0.976,95%CI为0.931~1.000,当界值为0.46时,预测子痫前期发病的灵敏度为95.70%,特异度为72.50%;维生素E诊断子痫前期的AUC为0.820,95%CI为0.725~0.914,当界值为0.28时,预测子痫前期发病的灵敏度为76.70%,特异度为77.80%;25-羟基维生素D诊断子痫前期的AUC为0.789,95%CI为0.681~0.898,当界值为0.33时,预测子痫前期发病的灵敏度为73.30%,特异度为81.90%;血清维生素A+维生素E+25-羟基维生素D诊断子痫前期的AUC为0.988,95%CI为0.966~1.000。当界值为0.55时,预测子痫前期发病的灵敏度为96.70%,特异度为95.80%。结论 在孕10~14周时,血清维生素A、维生素E、25-羟基维生素D水平下降与子痫前期发病无关;在孕24~28周时,血清维生素A、维生素E、25-羟基维生素D水平下降与子痫前期发病显著相关,孕晚期血清维生素A、维生素E、25-羟基维生素D可作为子痫前期的关键指标。