謝桃李 孫禮賓
摘要:目的? 探討血清25-羥維生素D[25-(OH)D] 維生素D水平與HSP發(fā)病的關(guān)系。方法? 選擇2017年12月~2018年12月至我院就診的過敏性紫癜患兒49例設(shè)為實(shí)驗(yàn)組,另選取40例健康兒童設(shè)為健康對(duì)照組,采用化學(xué)發(fā)光法測定兩組血清25-羥維生素D水平,免疫濁度法測定補(bǔ)體、免疫球蛋白并進(jìn)行比較,分析其相關(guān)性。結(jié)果? 實(shí)驗(yàn)組血清25-(OH)D水平為(19.061±6.572)ng/ml,低于健康對(duì)照組的(30.789±1.880)ng/ml,差異有統(tǒng)計(jì)學(xué)意義(t=-11.628,P<0.05);Pearson相關(guān)分析或Spearman秩相關(guān)分析示,實(shí)驗(yàn)組血清25-羥維生素D水平與免疫球蛋白IgA水平呈負(fù)相關(guān)(r=-0.352,P<0.05),與補(bǔ)體(C3、C4)、免疫球蛋白(IgG、IgM)水平間無明顯相關(guān)性(r=0.199、0.248、-0.165、-0.204,均P>0.05)。結(jié)論? 過敏性紫癜患兒中25羥維生素D可能參與了過敏性紫癜的發(fā)病過程。
關(guān)鍵詞:過敏性紫癜;25-羥維生素D;補(bǔ)體;免疫球蛋白
中圖分類號(hào):R725.5? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?文獻(xiàn)標(biāo)識(shí)碼:A? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?DOI:10.3969/j.issn.1006-1959.2019.09.038
文章編號(hào):1006-1959(2019)09-0116-03
Abstract:Objective? To investigate the relationship between serum 25-hydroxyvitamin D [25-(OH)D] vitamin D levels and the pathogenesis of HSP. Methods? A total of 49 children with Henoch-Sch?觟nlein purpura who were admitted to our hospital from December 2017 to December 2018 were selected as the experimental group, and 40 healthy children were selected as the healthy control group. The serum of the two groups was determined by chemiluminescence method. - Hydroxyvitamin D levels, immunoturbidimetric assays for complement and immunoglobulin were compared and analyzed for correlation. Results? The serum 25-(OH) D level in the experimental group was (19.061±6.572) ng/ml, which was lower than that in the healthy control group (30.789±1.880) ng/ml,the difference was statistically significant (t=-11.628, P<0.05); Pearson correlation analysis or Spearman rank correlation analysis showed that serum 25-hydroxyvitamin D levels in the experimental group were negatively correlated with immunoglobulin IgA levels (r=-0.352, P<0.05), and complement (C3, C4), There was no significant correlation between immunoglobulin (IgG, IgM) levels (r=0.199, 0.248, -0.165, -0.204, both P>0.05). Conclusion? 25-hydroxyvitamin D may be involved in the pathogenesis of Henoch-Sch?nlein purpura in children with Henoch-Sch?觟nlein purpura.
Key words:Henoch-Sch?觟nlein purpura;25-hydroxyvitamin D;Complement;Immunoglobulin
過敏性紫癜(Henoch-Sch?觟nlein purpura,HSP)是一種以全身性小血管炎癥為主要病變、可累及多個(gè)器官系統(tǒng)的自身免疫性系統(tǒng)性血管炎。是兒童多發(fā)疾病,可以表現(xiàn)為皮膚紫癜、消化道出血、腎臟受累及關(guān)節(jié)腫痛并伴有活動(dòng)障礙等。HSP的發(fā)病率在近年來有逐漸上升的趨勢。本病常反復(fù)發(fā)作,嚴(yán)重影響患兒身體健康,但目前病因尚未完全明確,給臨床治療造成一定的困難。目前公認(rèn)HSP患兒存在細(xì)胞免疫及體液免疫功能紊亂,主要以IgA介導(dǎo)的體液免疫異常為主[1],具體機(jī)制尚未完全闡明。近年來有研究顯示,維生素D的作用不僅僅是調(diào)節(jié)體內(nèi)鈣磷代謝,維持血鈣、血磷平衡并促進(jìn)骨的礦化;并且其可通過多種途徑調(diào)節(jié)免疫功能及炎癥反應(yīng),在一些自身免疫疾病中起重要的作用[2]。低水平的維生素D與類風(fēng)濕性關(guān)節(jié)炎、多發(fā)性硬化、貝赫切特病及系統(tǒng)性紅斑狼瘡等自身免疫性疾病的發(fā)病風(fēng)險(xiǎn)高度相關(guān)[2]。維生素D在HSP中的研究國內(nèi)外較少報(bào)道,且維生素D水平與光照、膳食等有很大關(guān)系,此研究存在地域性差異,仍需進(jìn)一步探討維生素D水平與HSP發(fā)病的關(guān)系。