Causal relationship between circulating vitamin C and 25-hydroxyvitamin D concentrations and common mental disorders-a Mendelian randomization study

Mental disorders seriously affect people’s health and social stability.This Mendelian randomization(MR)study was designed to investigate the causal relationship between circulating vitamin C(VC)or 25-hydroxyvitamin D(25(OH)D)levels and mental disorders.The data used for the MR analysis were derived from the summary genome-wide association studies(GWAS)database for VC and 25(OH)D and from the Finn Gen consortium for fourteen mental disorders.Based on the inverse variance weighted(IVW)method,we found a potential causal association between circulating VC and anxiety disorders(IVW:OR=1.139,95%CI:1.023-1.269,P=0.018).However,no causal association was found between VC or 25(OH)D and other mental disorders(P>0.05).In the reverse MR analysis,individuals with Alzheimer’s disease was causally associated with higher concentrations of circulating VC(P=0.012),while individuals with anxiety disorders had a negative association between the concentrations of 25(OH)D(P=0.012).However,the current evidence does not support a causal relationship between VC or 25(OH)D and other mental disorders.In addition,there was no causal association between circulating VC and 25(OH)D(P>0.05).Future studies are needed to confirm these findings and to elucidate the mechanisms of potential causality.

Causal association between 25-hydroxyvitamin D status and cataract development:A two-sample Mendelian randomization study

BACKGROUND Vitamin deficiencies are linked to various eye diseases,and the influence of vitamin D on cataract formation has been noted in prior research.However,detailed investigations into the causal relationship between 25-(OH)D status and cataract development remain scarce.AIM To explore a possible causal link between cataracts and vitamin D.METHODS In this study,we explored the causal link between 25-(OH)D levels and cataract development using Mendelian randomization.Our analytical approach included inverse-variance weighting(IVW),MR-Egger,weighted median,simple mode,and weighted mode methods.The primary analyses utilized IVW with random effects,supplemented by sensitivity and heterogeneity tests using both IVW and MR-Egger.MR-Egger was also applied for pleiotropy testing.Additionally,a leave-one-out analysis helped identify potentially impactful single-nucleotide polymorphisms.RESULTS The analysis revealed a positive association between 25-(OH)D levels and the risk of developing cataracts(OR=1.11,95%CI:1.00-1.22;P=0.032).The heterogeneity test revealed that our IVW analysis exhibited minimal heterogeneity(P>0.05),and the pleiotropy test findings confirmed the absence of pleiotropy within our IVW analysis(P>0.05).Furthermore,a search of the human genotype-phenotype association database failed to identify any potentially relevant risk-factor single nucleotide polymorphisms.CONCLUSION There is a potential causal link between 25-(OH)D levels and the development of cataracts,suggesting that greater 25-(OH)D levels may be a contributing risk factor for cataract formation.Further experimental research is required to confirm these findings.

血清25羟维生素D、甲状旁腺激素、总Ⅰ型胶原氨基端延长肽/β-胶联降解产物水平与老年骨质疏松症患者胸腰椎压缩性骨折关系及检测意义

目的:探讨老年骨质疏松症患者血清25羟维生素D(25-OH-VD)、甲状旁腺激素(PTH)、总Ⅰ型胶原氨基端延长肽(t-PINP)/β-胶联降解产物(β-CTX)水平与胸腰椎压缩性骨折的关系及意义。方法:选取确诊的老年骨质疏松性胸腰椎压缩性骨折(OVCF)患者36例为OVCF组,选取同期确诊老年骨质疏松症但未骨折患者72例为对照组。比较两组血清25-OH-VD、PTH、t-PINP、β-CTX、耐酒石酸酸性磷酸酶5b(TRAP5b)、t-PINP/β-CTX水平及骨密度。分析血清骨转换标志物与骨密度的相关性,老年骨质疏松症患者OVCF发生的影响因素,以及血清骨转换标志物对老年OVCF的诊断价值。结果:OVCF组患者血清25-OH-VD、β-CTX水平低于对照组,PTH、t-PINP、TRAP5b、t-PINP/β-CTX水平高于对照组(均P<0.05)。OVCF组患者腰椎骨密度和全髋骨密度低于对照组(均P<0.05)。Pearson相关性分析显示,腰椎骨密度和全髋骨密度与血清25-OH-VD、β-CTX呈正相关,与PTH、t-PINP、TRAP5b、t-PINP/β-CTX呈负相关(均P<0.05)。多因素Logistic回归分析显示,血清低水平的25-OH-VD、β-CTX和高水平的PTH、t-PINP、t-PINP/β-CTX是老年骨质疏松症患者OVCF发生的影响因素(均P<0.05)。血清25-OH-VD、PTH、t-PINP、β-CTX、t-PINP/β-CTX对诊断老年OVCF有一定价值(均P<0.05)。结论:血清25-OH-VD降低、PTH水平和t-PINP/β-CTX水平升高与老年骨质疏松患者发生OVCF具有相关性,对老年骨质疏松症患者OVCF的发生均有一定的诊断价值。

Investigation of 25-Hydroxy Vitamin D Status and Related Factors in Hospitalised Patients with Type 2 Diabetes Mellitus

Objective: To investigate the distribution of 25-hydroxy Vitamin D level status in type 2 diabetes mellitus inpatients, as well as the differences in general conditions and clinical indicators in patients with different Vitamin D status. Methods: Retrospective analysis of 250 admitted type 2 diabetes inpatients admitted to the endocrinology department of qinghai provincial hospital of traditional chinese medicine from september 2022 to december 2023, collated and analysed the general data and laboratory indicators of the patient cases, and applied spss26.0 to process and analyse the data and explore the differences in the general conditions and commonly used clinical nutritional indicators of type 2 diabetes in patients with different 25-hydroxyVitamin D levels. The differences between the different 25-hydroxy Vitamin D levels in type 2 diabetes mellitus patients. Results: 1) A total of 250 inpatients with type 2 diabetes mellitus were included in this study, of which 56 cases (22.4%) were patients with 25 hydroxyvitamin D deficiency [25(OH)D P P P P > 0.05). 3) The distribution of some laboratory indexes among the three groups of patients was differentiated, with the average level of glycated haemoglobin in the lack group being significantly higher than that of the remaining two groups, the average level of albumin being significantly lower than that of the remaining two groups, and the average level of haemoglobin being significantly lower than that of the good group (P P > 0.05). Conclusion: The 25(OH)D level of type 2 diabetes mellitus inpatients is not optimistic. In clinical diagnosis and treatment, we should pay attention to the changes in 25 hydroxyvitamin D levels and other nutritional indexes of patients with type 2 diabetes mellitus, and focus on the control of blood glucose levels and timely supplementation of vitamins, proteins, and lipids, in order to improve the patients’ physical status, reduce the incidence of complications, and improve the clinical efficacy and the patients’ quality of life.

25-Hydroxyvitamin D Is Associated with Islet Homeostasis in Type-2 Diabetic Patients with Abdominal Obesity

Objective Isletαcells input is essential for insulin secretion fromβcells.The present study aims to investigate the association between 25-hydroxyvitamin D[25(OH)D]and islet function homeostasis in type-2 diabetes(T2D)patients.Methods A total of 4670 T2D patients from seven communities in Shanghai,China were enrolled.The anthropometric indices,biochemical parameters,serum 25(OH)D,and islet function[including C-peptide(C-p)and glucagon]were measured.Results The fasting plasma glucose(FPG),glycated hemoglobin(HbA1c),glucagon,and C-p levels exhibited a significantly decreasing trend in T2D patients as the 25(OH)D levels increased.Next,the population was divided into two groups:abdominal obesity and non-abdominal obesity groups.After adjustment,the 25(OH)D level was found to be associated with HbA1c,glucagon,and homeostasis model assessment ofβ(HOMA-β)in the non-abdominal obesity group.There was a significant relationship between 25(OH)D and HbA1c,glucagon,HOMA-IR,baseline insulin or C-p in the abdominal obesity group.In the abdominal obesity group,the ordinary least squares(OLS)regression and quantile regression revealed that 25(OH)D was obviously associated with glucagon and fasting C-p levels.In the abdominal obesity group,the moderate analysis revealed a significant interaction effect of 25(OH)D and glucagon on C-p(P=0.0124).Furthermore,the conditional indirect effect of 25(OH)D on the glucagon/C-p ratio was significantly lower at 1 standard deviation(SD)below the mean(P=0.0002),and lower at the mean of the course of diabetes(P=0.0007).Conclusion 25(OH)D was found to be negatively correlated to glucagon and C-p in T2D patients with abdominal obesity.The 25(OH)D influenced C-p in part by influencing glucagon.The effect of 25(OH)D on the glucagon/C-p ratio in T2D patients with abdominal obesity,in terms of islet homeostasis,is influenced by the course of diabetes.

Visfatin and 25-Hydroxyvitamin D_(3) Levels Affect Coronary Collateral Circulation Development in Patients with Chronic Coronary Total Occlusion

Background:Coronary collateral circulation(CCC)plays a vital role in the myocardial blood supply,especially for ischemic myocardium.Evidence suggests that the visfatin and 25-hydroxyvitamin D_(3)[25(OH)D_(3)]levels are related to the degree and incidence of vascular stenosis associated with coronary artery disease;however,few studies have evaluated the effect of visfatin and 25(OH)D_(3) on CCC development in patients with chronic total occlusion(CTO).This study aimed to evaluate the relationship between the serum visfatin and 25(OH)D_(3) levels and CCC in patients with CTO.Methods:A total of 189 patients with CTO confirmed by coronary angiography were included.CCC was graded from 0 to 3 according to the Rentrop-Cohen classification.Patients with grade 0 or grade 1 collateral development were in-cluded in the poor CCC group(n=82),whereas patients with grade 2 or grade 3 collateral development were included in the good CCC group(n=107).The serum visfatin and 25(OH)D_(3) levels were measured by ELISA.Results:The visfatin level was significantly higher in the poor CCC group than in the good CCC group,and the 25(OH)D_(3) level was significantly lower in the poor CCC group than in the good CCC group(P=0.000).Correlation analysis showed that the Rentrop grade was negatively correlated with the visfatin level(r=−0.692,P=0.000)but positively correlated with the 25(OH)D_(3) level(r=0.635,P=0.000).Logistic regression analysis showed that the vis-fatin and 25(OH)D_(3) levels were independent risk factors for CCC(odds ratio 1.597,95%confidence interval 1.300-1.961,P=0.000 and odds ratio 0.566,95%confidence interval 0.444-0.722,P=0.000,respectively).The visfatin and 25(OH)D_(3) levels can effectively predict the CCC status.Conclusion:Serum visfatin and 25(OH)D_(3) levels are related to CCC development and are independent predictors of poor CCC.

北京地区周岁内婴幼儿维生素D营养状况调查分析

目的 对本地区2022年7月至2023年6月来我院健康查体的周岁内婴幼儿维生素D营养状况和差异进行比较分析。方法 选取2022年7月至2023年6月来我院健康查体的周岁内,无急、慢性疾病的婴幼儿作为研究对象。取受试儿童末梢血,利用荧光免疫层析法对其血液中的总维生素D和25-羟基维生素D_(3)进行检测,并对数据进行分析和比较。结果 本地区周岁内婴幼儿整体维生素D营养状况良好,3/4婴幼儿维生素D为理想水平,维生素D缺乏者占比小于1.3%,且无严重缺乏者。随月龄增大,维生素D理想水平的婴幼儿比例减低,维生素D充足和缺乏的婴幼儿比例增加。整体婴幼儿和男、女婴幼儿在周岁内总维生素D和25-羟基维生素D_(3)的平均值均随着月龄增加而呈现小幅波动,且不同月龄的总维生素D、25-羟基维生素D_(3)在整体和女婴幼儿中均存在差异(P<0.001)。除3月龄外,各月龄男、女婴幼儿的总维生素D、25-羟基维生素D_(3)及其差值、比值均无差异。半岁前,男、女婴幼儿的总维生素D和25-羟基维生素D_(3)的平均值从2月龄开始每两个月进行翻转,半岁后,整体呈每月翻转。结论 本地区周岁内婴幼儿总体维生素D营养状况良好,但仍需加强婴幼儿维生素D的合理补充。

慢性自发性荨麻疹患者血清25-羟维生素D、调节性T细胞及总IgE水平的相关性分析

目的分析慢性自发性荨麻疹(chronic spontaneous urticaria,CSU)患者血清中25-羟维生素D[25-hydroxyvitamin D,25-(OH)D]、调节性T细胞(regulatory T cells,Treg)、总免疫球蛋白E(immunoglobulin E,IgE)水平的相关性。方法选择作者医院2020-01/2021-10月收治的84例CSU患者作为观察组,另选取84例同期健康体检者作为对照组,按照CSU病情分级将观察组患者分为轻度组(n=34),中度组(n=27),重度组(n=23)。分别检测并比较观察组与对照组研究对象的血清25-(OH)D、Treg比例以及总IgE水平。分析不同CSU病情分级患者的血清25-(OH)D、Treg比例以及总IgE水平的差异。采用Pearson相关性分析明确CSU患者血清25-(OH)D、Treg比例及总IgE水平的关系。结果观察组血清25-(OH)D、Treg比例均低于对照组,而总IgE水平高于对照组(P均<0.05)。重度组患者的血清25-(OH)D、Treg比例均低于轻度组、中度组(P均<0.05),且中度组患者的血清25-(OH)D、Treg比例均低于轻度组(P<0.05);重度组患者血清总IgE水平均高于轻度组、中度组(P均<0.05),中度组总IgE水平高于轻度组(P<0.05)。Pearson相关性分析发现,CSU患者血清25-(OH)D与Treg比例呈正相关(P<0.05),血清25-(OH)D、Treg比例均与总IgE水平呈负相关关系(P均<0.05)。结论CSU患者血清25-(OH)D水平存在明显的降低,且和Treg失衡以及总IgE所介导的Ⅰ型变态反应有关。

Serum 1, 25-Hydroxyvitamin D: A Useful Index of Cognitive and Physical Functional Impairment in Healthy Older Adults in Japan: A Pilot Study

We enrolled 23 Japanese men (age: 76.0 ± 8.7) and 17 women (age: 78.3 ± 9.3) in this study. The physical function of even a person getting on a wheelchair could be tested in all subjects. Blood was collected by venipuncture and the serum 1, 25-hydroxy vitamin D (1, 25OHD) concentration was measured. The Mini-Mental State Examination (MMSE) and the Montreal Cognitive Assessment-Japanese version (MoCA-J) was used for the cognitive function test. Physical function was measured objectively using the Timed UP and Go (TUG) and 4-m walking test (4MWS). A significant positive correlation was found between serum 1, 25OHD and MMSE or MoCA-J. It is expected that an elderly person can maintain a mean serum 1, 25OHD level of about 100 pg/mL for preventing early cognitive disorder. In the present study, a significant positive correlation was found between urinary 25-hydroxy vitamin D (25OHD)/creatinine and MMSE or MoCA-J. Our results showed that urinary 25OHD might be a useful biomarker for predicting cognitive disorder. There was a significant negative correlation between serum 1, 25OHD and TUG or 4MWS. These findings suggest that serum 1, 25OHD levels might serve as a useful index to improve cognitive and physical functional impairment.

Study on the correlation and predictive value of serum pregnancyassociated plasma protein A, triglyceride and serum 25-hydroxyvitamin D levels with gestational diabetes mellitus

BACKGROUND Gestational diabetes mellitus(GDM)is a concern due to its rapid increase in incidence in recent years.AIM To investigate the correlation and predictive value of serum pregnancyassociated plasma protein A(PAPP-A),triglyceride(TG),and 25-hydroxyvitamin D[25-(OH)D]with GDM in early pregnancy.METHODS A total of 99 patients in early pregnancy admitted to Peking University International Hospital from November 2015 to September 2017 were included,and underwent a fasting glucose test and oral glucose tolerance test screening at 24-28 wk of pregnancy.Of these cases with GDM,51 were assigned to group A and the remaining 48 cases without GDM were enrolled in group B.Serum PAPP-A,TG and 25-(OH)D in the two groups were compared and their correlation with blood sugar was analyzed.In addition,their diagnostic value in GDM was determined using receiver operating characteristic(ROC)curve analysis.RESULTS Group A had markedly lower serum PAPP-A and 25-(OH)D levels and a significantly higher serum TG level than group B,with statistical significance(P<0.05).Furthermore,Pearson analysis identified that PAPP-A and 25-(OH)D levels were negatively correlated with fasting blood glucose(FBG)levels(r=-0.605,P<0.001),(r=-0.597,P<0.001),while TG and FBG levels were positively correlated(r=0.628,P<0.001).The sensitivity,specificity,area under the curve(AUC)and optimal cut-off value of serum PAPP-A level in the diagnosis of GDM were 72.55%,82.35%,0.861 and 16.340,respectively,while the sensitivity of TG in diagnosing GDM was 86.27%,the specificity was 66.67%,the AUC was 0.813,with an optimal cut-off value of 1.796.The corresponding sensitivity,specificity,AUC and optimal cut-off value of serum 25-(OH)D were 64.71%,70.59%,0.721 and 23.140,respectively.Moreover,multivariate logistic regression analysis revealed that FBG,vascular endothelial growth factor,Flt-1,serum PAPP-A,TG,and 25-(OH)D were related risk factors leading to GDM in patients.CONCLUSION Serum PAPP-A,TG,and 25-(OH)D levels are all correlated with blood glucose changes in GDM,and are independent factors affecting the occurrence of GDM and have certain value in the diagnosis of GDM.

CHBMISTRY OF HYODEOXYCHOLIC ACID 5. CONCISE SYNTHESIS OF 25-HYDROXYCHOLESTEROL FROM HYODEOXYCHOLIC ACID, A KEY INTERMEDIATE OF 25-HYDROXYVITAMIN D_3

25-Hydroxycholesterol, which is an important intermediate for the synthesis of 25-hvdroxyvitamin D_3 and 1α, 25-dihydroxyvitamin D_3, was prepared efficiently from hyodeoxycholic acid in 31% overall yield in seven steps.

Effect of Postmortem Ageing on Quality Parameters,Contents of Proteins,Lipids and 25-Hydroxyvitamin D and Oxidative Stability in the Camel Meat during Cold Storage

The effect of ageing was evaluated on quality parameters(pH,electrical conductivity(EC),osmolality,drip loss(DL)and cooking loss(CL)),proteins,fat and 25-hydroxyvitamin D(25-OH-D)total levels and antioxidant status(malondialdehyde(MDA)and catalase(CAT)activity)in meat of camels during storage at 4±1°C.Samples were taken from the brachial triceps muscle(triceps barchii)and were stored at 4±1°C for 10 d.Quality parameters,chemical composition and antioxidant status were assessed at 3 h and 24 h postslaughter and 5,7 and 10 d postmortem during cold storage.CAT activity significantly decreased while osmolality,EC,DL,CL and MDA contents significantly increased,from the 5th or 7th postmortem day of cold storage of the camel meat.However,proteins,lipids and 25-OH-D total contents showed no significant differences during all period of ageing.In conclusion,in the dromedary camel,ageing time of triceps muscle influenced significantly its quality characteristics and antioxidant status from the 5th or 7th postmortem day of refrigerated storage,without any variation of proteins,fat and 25-OH-D contents.

The Relationship between Serum 25-Hydroxyvitamin D and Resistin Levels in Saudi Diabetic Patients

Objectives: The aim of this study was to investigate the relationship between the levels of 25-hydroxyvitamin D and the adipokine resistin in Saudi diabetic patients and those at high risk to develop atherosclerotic cardiovascular diseases. Methodology: One hundred and sixty seven subjects were recruited for the cross-sectional study at King Fahad Medical City, Saudi Arabia. Blood samples were analyzed for biochemical parameters. Serum 25-hydroxyvitamin D and resistin levels were measured for all the participants. Result: Fifty six type-1, 55 type-2 diabetic patients and 56 healthy controls were recruited. Serum 25-hydroxyvitamin D level in the control group was 44.21 ± 41.80 μg/ml compared to 50.67 ± 35.60 μg/ml in the diabetic group (P = 0.427) with no significant different between type-2 diabetes mellitus and type-1 diabetes mellitus (P = 0.628). Resistin level in the control group was 14.00 ± 7.39μg/ml compared to 20.21 ± 16.94 μg/ml in the diabetic group (P ≤ 0.01), no significant difference between type-2 diabetes mellitus and type-1 diabetes mellitus (P = 0.817). Resistin in those taking vitamin D supplementation was 21.34 ± 18.27 μg/ml;and in those not taking vitamin D supplementation, it was 17.4 ± 11.19 μg/ml;(P = 0.237). There was significant negative correlation between 25-hydroxyvitamin D and resistin in type-2 diabetes mellitus (P ≤ 0.043) and no significant correlation was found between vitamin 25 (OH) D and resistin level in type-1 diabetes mellitus (P = 0.538). Blood urea and creatinine showed significant positive correlation with vitamin 25 (OH) D in one hand and resistin level on the other hand. Discussion and Conclusions: Several in vitro and in vivo studies have confirmed that the vitamin 25 (OH) D have numerous important functions in the body. The circulating vitamin 25 (OH) D and resistin levels were associated with general inflammation in renal diseases. This study showed significant negative correlation between resistin level and vitamin 25 (OH) D in type 2 diabetes mellitus reflecting their roles in glucose homeostasis. The positive correlation of resistin and vitamin D with urea may reflect their involvement in kidney dysfunction. The level of serum resistin showed slight increase in diabetic patients compared to control group and it was higher in type-2 diabetes mellitus. More efforts are needed to explore the physiological mechanism of vitamin 25 (OH) D and resistin action in metabolic disorders.

克罗恩病患者血清总25羟维生素D及细胞因子水平表达与疾病活动指数的相关性研究

目的探讨克罗恩病患者血清总25羟基维生素D、细胞因子白介素6(IL-6)、白介素8(IL-8)和肿瘤坏死因子α(TNF-α)在克罗恩病不同时期的表达水平以及其与疾病活动指数(CDAI)的相关性。方法选取2018年1月~2020年12月在北京大学深圳医院就诊的克罗恩病患者共100例纳入研究。收集患者的空腹静脉血,检测总25羟基维生素D,IL-6,IL-8和TNF-α水平;采用CDAI评估患者疾病活动情况,并根据CDAI评分将患者分为四组,缓解期21例,轻度活动期32例,中度活动期29例和重度活动期18例。比较CDAI评分不同分期患者的血清总25-羟基维生素D,IL-6,IL-8和TNF-α的表达水平。并进一步分析比较患者CDAI与血清总25-羟基维生素D水平及细胞因子IL-6,IL-8及TNF-α表达水平之间的相关性。结果四组患者血清总25-羟基维生素D及细胞因子IL-6,IL-8和TNF-α的差异均存在统计学意义(F=34.281~128.53,均P<0.05)。缓解期患者血清总25-羟基维生素D(23.49±3.46μg/L),IL-8(86.39±11.23ng/L)和TNF-α(24.05±2.12ng/L)水平高于其他三组(轻度活动期分别为19.47±2.83μg/L,70.48±9.48ng/L,20.59±3.22ng/L;中度活动期14.30±2.64μg/L,65.38±10.91ng/L,17.48±4.12ng/L;重度活动期11.39±3.93μg/L,46.58±12.32ng/L,13.44±3.98ng/L),但IL-6水平(4.37±0.78ng/L)明显低于其他三组(轻度活动期6.48±1.12 ng/L,中度活动期65.38±10.91 ng/L,重度活动期46.58±12.32 ng/L),差异均具有统计学意义(均P<0.05)。采用Spearman相关性分析发现克罗恩病患者CDAI与血清总25-羟基维生素D水平呈负相关(r=-0.691,P<0.05),与细胞因子IL-6水平呈正相关(r=0.889,P<0.05),与IL-8和TNF-α均呈负相关(r=-0.675,-0.658,均P<0.05)。结论不同疾病活动期的克罗恩病患者总25-羟基维生素D和细胞因子水平存在明显差异,患者血清IL-6水平与疾病活动性呈正相关,而总25-羟基维生素D,IL-8和TNF-α水平与疾病活动性呈负相关。

血清总25-(OH)D对急性心肌梗死患者近期预后的影响

目的探讨血清总25羟基维生素D[25-(OH) D]对急性心肌梗死患者近期预后的影响。方法选取急性心肌梗死且行急诊经皮冠状动脉介入治疗(PCI)的患者共1 324例,收集其临床资料并检测血清总25-(OH) D水平,随访1年记录主要不良事件。根据是否发生主要不良事件分为事件组及对照组,回顾性分析两组患者临床特点。根据血清总25-(OH) D水平将患者分为维生素D缺乏组、不足组及正常组,分析三组患者的临床特点及预后差异。结果发生不良事件组217人,对照组1 107人。事件组25-(OH) D水平低于对照组(P=0. 007)。维生素D缺乏组与不足组患者非致死性心肌梗死、非计划血运重建发生率及高血压、糖尿病患病率均高于维生素D正常组。单因素COX分析结果提示维生素D缺乏及不足与PCI术后1年内发生不良事件相关(维生素D缺乏OR=2. 621,95%CI 1. 048~6. 553,P=0. 039;维生素D不足OR=2. 750,95%CI 1. 076~7. 031,P=0. 035)。ROC曲线分析25-(OH) D预测1年内未发生不良反应的灵敏度和特异性分别为56. 5%、59. 0%。结论低水平血清25-(OH)D是急性心肌梗死患者PCI术后发生主要不良事件的危险因素。

慢性阻塞性肺疾病患者血游离态25-羟基维生素D测定的临床意义

目的探讨游离态25-羟基维生素D[25(OH)D]测定在慢性阻塞性肺疾病(COPD)患者中的临床意义。方法对2014年11月至2015年9月在我院就诊的70例吸烟COPD患者和67例吸烟非COPD受试者分别进行COPD评估测试(CAT)问卷、肺功能测定和6 min步行试验(6MWT),检测血清总25(OH)D、维生素D结合蛋白(VDBP)及白蛋白,得出游离态25(OH)D水平。结果吸烟COPD组患者的一秒钟用力呼气量(FEV1)、FEV1/用力肺活量(FVC)、CAT评分、6MWT分别为(1.80±0.49)L、(51±12.3)%、(18.3±4.4)分、(245.3±38.4)m,而吸烟非COPD组分别为(2.75±0.32)L、(90±5.8)%、(1.2±0.3)分、(389.6±80.3)m,差异均有统计学意义(P<0.05);吸烟COPD组患者的总25(OH)D、VDBP及游离态25(OH)D水平分别为(51.3±8.9)nmol/L、(5.29±0.68)μmol/L、(12.4±2.2)pmol/L,与吸烟非COPD组[(54.7±10.8)nmol/L、(5.07±0.41)μmol/L、(14.0±2.3)pmol/L]比较,差异均有统计学意义(P<0.05);吸烟COPD组患者总25(OH)D与FEV1、FEV1/FVC、6MWT呈正相关(r=0.327,P=0.006;r=0.391,P=0.001;r=0.385,P=0.001),游离态25(OH)D水平与FEV1、FEV1/FVC、6MWT呈正相关(r=0.572,P=0.000;r=0.595,P=0.000;r=0.404,P=0.001),总25(OH)D、游离态25(OH)D水平与CAT评分呈负相关(r=-0.418,P=0.000;r=-0.432,P=0.000)。游离态25(OH)D与FEV1、FEV1/FVC、CAT评分和6MWT的相关系数均高于总25(OH)D。结论游离态25(OH)D在评估COPD患者病情过程中可能较总25(OH)D更有价值。

血清25-羟维生素D及总IgE水平与儿童哮喘急性发作的严重程度的关系

目的探讨血清25-羟维生素D、总IgE水平与儿童哮喘急性发作严重程度的关系。方法收集2013年4月~2014年12月河北省承德市妇幼保健院儿科门、急诊及住院部收治的哮喘患儿98例为研究对象,根据患儿的临床症状、实验室检查结果及哮喘防控指南将其分为中重度组、轻度组和缓解组,同期健康幼儿30例为对照组。采用电化学发光法测定各组幼儿血清25-羟维生素D水平;采用免疫放射分析法测定血清总IgE水平。结果与对照组幼儿比较,三组不同患病程度的哮喘患儿血清25-羟维生素D水平均降低,而血清总IgE水平均升高,差异有统计学意义(P<0.05)。三组不同患病程度的哮喘患儿血清25-羟维生素D、总IgE水平差异有统计学意义(P<0.05),且随着疾病进程,血清25-羟维生素D降低而总IgE水平增高。相关性分析结果显示,缓解组及轻度组患儿血清25-羟维生素D与血清总IgE水平无相关性(P>0.05);中重度组患儿血清25-羟维生素D与血清总IgE水平呈负相关(r=-7.28,P<0.05)。结论哮喘患儿血清25-羟维生素D及总IgE水平与哮喘急性发作严重程度关系密切,为维生素D对于儿童哮喘的防治作用提供依据。

婴幼儿反复呼吸道感染与血清25羟维生素D水平及体外过敏原、总IgE的关系

目的探讨婴幼儿反复呼吸道感染(RRTI)与血清25羟维生素D[25-(OH)D]水平及体外过敏原、总免疫球蛋白E(IgE)的关系。方法选择2018年12月至2019年6月在扬州大学医学院附属扬州市妇幼保健院(以下简称“我院”)就诊的RRTI患儿100例作为观察组,另选择我院首次呼吸道感染年龄在3~18个月,随访至2周岁仍仅有一次呼吸道感染史的患儿100例为首次感染组;儿童保健科进行健康体检的婴幼儿100名为健康组;将首次感染组及健康组同时纳入对照组。比较各组25-(OH)D水平;比较观察组及对照组体外过敏原指标及总IgE;logistic回归分析婴幼儿RRTI的危险因素。结果观察组血清25-(OH)D水平低于对照组(P<0.01)。观察组血清25-(OH)D水平低于健康组、首次感染组(P<0.01)。观察组屋尘、鸡蛋白、牛奶、柏榆柳栎桦枫胡桃梧桐杨阳性率高于对照组(P<0.05或P<0.01)。两组总IgE水平分布比较,差异无统计学意义(P>0.05)。25-(OH)D是RRTI发生的保护因素(OR<1,P<0.05)。结论RRTI患儿血清25-(OH)D水平较低,25-(OH)D可能在RRTI的发生中起保护作用,RRTI患儿过敏原多个指标阳性率较高,但不能以体外过敏原阳性来预测患儿是否易发生RRTI。

血清总25-(OH)D对急性心肌梗死患者的影响

目的探讨血清总25-(OH)D对急性心肌梗死患者的临床分析。方法根据2018年1月-2020年2月在本院漯河医学高等专科学校第三附属医院消化内科治疗的急性心肌梗死患者70例和将同期进行正常体检的健康人70例作为研究对象,分别对于两组人员的临床资料进行评估,比较两组人员体内血清总25-(OH)D的缺乏程度对于不良事件的单因素分析和多因素分析。结果健康体检组的血清总25-(OH)D水平高于心肌梗死组,MCP-1、Hs-CRP、WBC、IL-6要低于心肌梗死组(P<0.05);多因素Logistic分析结果表明:急性心肌梗死患者患病原因均与年龄、高血压、糖尿病、充血性心力衰竭、恶性心律失常、非致死性心肌梗死、心原性死亡有一定关系,差异具有统计学意义(P<0.05)。结论血清总25-(OH)可作为判断临床急性心肌梗死患者患病的因素之一,患者基础性疾病和总25-(OH)D的严重缺乏是导致急性心肌梗死患者发生不良事件的主要因素,应注重临床总25-(OH)D的摄入,减少患者痛苦,值得推广应用。

血清25OHD、甲状旁腺激素水平与老年骨质疏松症病人全髋关节置换术预后的相关性

目的探讨血清25羟维生素D(25OHD)、甲状旁腺激素(PTH)水平与老年骨质疏松症(OP)病人全髋关节置换术(THA)预后的相关性。方法回顾性分析2017年10月至2019年10月在我院行THA的147例髋骨骨折病人的临床资料,术前行骨密度检查,117例确诊为OP。术后6个月,根据Harris评分将OP病人分为预后良好组(89例)和预后不良组(28例),比较2组的一般临床资料和生化指标、25OHD、PTH水平。采用多因素Logistic回归分析影响老年OP病人THA预后的独立危险因素,采用Pearson相关系数描述血清25OHD、PTH水平与Harris评分之间的相关性。结果预后不良组年龄、术后关节脱位、术中出血量、入院时血清PTH水平高于预后良好组,入院时骨密度、血清25OHD水平低于预后良好组(P<0.05);Logistic回归分析显示,高龄、术后关节脱位、入院时血清低25OHD水平、高PTH水平是影响老年OP病人THA预后的独立危险因素(OR=3.785、5.652、1.657、3.271)。OP病人骨密度、血清25OHD水平均与Harris评分呈正相关(r=0.621、0.764),血清PTH水平与Harris评分呈负相关(r=-0.557)。结论血清低水平25OHD、血清高水平PTH是影响老年OP病人THA预后的独立危险因素,可以作为预测老年OP病人THA预后的参考指标。