Vitamin D,selenium,and antidiabetic drugs in the treatment of type 2 diabetes mellitus with Hashimoto's thyroiditis

BACKGROUND Diabetes and thyroiditis are closely related.They occur in combination and cause significant damage to the body.There is no clear treatment for type-2 diabetes mellitus(T2DM)with Hashimoto's thyroiditis(HT).While single symptomatic drug treatment of the two diseases is less effective,combined drug treatment may improve efficacy.AIM To investigate the effect of a combination of vitamin D,selenium,and hypoglycemic agents in T2DM with HT.METHODS This retrospective study included 150 patients with T2DM and HT treated at The Central Hospital of Shaoyang from March 2020 to February 2023.Fifty patients were assigned to the control group,test group A,and test group B according to different treatment methods.The control group received low-iodine diet guidance and hypoglycemic drug treatment.Test group A received the control treatment plus vitamin D treatment.Test group B received the group A treatment plus selenium.Blood levels of markers of thyroid function[free T3(FT3),thyroid stimulating hormone(TSH),free T4(FT4)],autoantibodies[thyroid peroxidase antibody(TPOAB)and thyroid globulin antibody(TGAB)],blood lipid index[low-density lipoprotein cholesterol(LDL-C),total cholesterol(TC),triacylglycerol(TG)],blood glucose index[fasting blood glucose(FBG),and hemoglobin A1c(HbA1c)]were measured pre-treatment and 3 and 6 months after treatment.The relationships between serum 25-hydroxyvitamin D3[25(OH)D3]level and each of these indices were analyzed.RESULTS The levels of 25(OH)D3,FT3,FT4,and LDL-C increased in the order of the control group,test group A,and test group B(all P<0.05).The TPOAB,TGAB,TC,TG,FBG,HbA1c,and TSH levels increased in the order of test groups B,A,and the control group(all P<0.05).All the above indices were compared after 3 and 6 months of treatment.Pre-treatment,there was no divergence in serum 25(OH)D3 level,thyroid function-related indexes,autoantibodies level,blood glucose,and blood lipid index between the control group,test groups A and B(all P>0.05).The 25(OH)D3 levels in test groups A and B were negatively correlated with FT4 and TGAB(all P<0.05).CONCLUSION The combination drug treatment for T2DM with HT significantly improved thyroid function,autoantibody,and blood glucose and lipid levels.

脓毒症患者血清VitD、FRT、HB-EGF表达情况与预后预测价值探讨

目的 探讨分析脓毒症患者血清维生素D(VitD)、铁蛋白(FRT)、肝素结合性表皮生长因子(HB-EGF)表达情况与预后预测价值。方法 选取2021年1月—2022年1月某院重症监护病房收治的86例脓毒症患者作为病例组,并选择重症监护病房中60例非脓毒症患者作为对照组。根据脓毒症患者1个月后预后情况,将患者分为存活组和死亡组。入院时采集患者血清,检测血清VitD、FRT、HB-EGF水平,分析其表达水平与脓毒症患者预后的相关性,并采用受试者工作特征曲线下面积(AUC)评估其对预后的预测价值。结果 病例组脓毒症患者白细胞计数、C反应蛋白(CRP)、降钙素原(PCT)、肿瘤坏死因子(TNF-α)、白细胞介素(IL)-6、IL-1β、FRT水平高于对照组非脓毒症患者,VitD、HB-EGF水平低于对照组非脓毒症患者,差异均有统计学意义(均P<0.05)。随访脓毒症患者1个月后预后情况,55例存活,31例死亡。死亡组患者APACHEⅡ评分、SOFA评分、PCT、TNF-α、IL-1β、FRT高于存活组患者,而VitD、HB-EGF低于存活组患者,差异均有统计学意义(均P<0.05)。Pearson相关性分析结果显示,VitD与APACHEⅡ评分、SOFA评分、白细胞计数、CRP、PCT、TNF-α呈负相关关系(均P<0.05);HB-EGF与APACHEⅡ评分、CRP、PCT、TNF-α、IL-6、IL-1β呈负相关关系(均P<0.05);FRT与APACHEⅡ评分、CRP、PCT、TNF-α、IL-6、IL-1β呈正相关关系(均P<0.05)。血清VitD、FRT、HB-EGF联合检测预测脓毒症患者预后的AUC为0.82(95%CI:0.72~0.86),灵敏度为84.39%,特异度为69.35%。结论 脓毒症患者血清VitD、HB-EGF水平较低,FRT水平较高,其表达水平与患者预后密切相关,对预测脓毒症患者预后具有较好预测价值。

Vitamin D, Parathyroid Hormone, Insulin Sensitivity and Islet β-Cell Secretory Function in Diabetic Patients from South Kivu in the Democratic Republic of Congo: Cross-Sectional Study

Background: The role of vitamin D and parathyroid hormone in the metabolic profile of type 2 diabetes mellitus in sub-Saharan Africa has not been adequately assessed. The aim of this study was to determine the prevalence of low vitamin D level and secondary hyperparathyroidism and their association with insulin sensitivity and β-cell secretory function among Congolese type 2 diabetics. Methodology: Fasting glycaemia, fasting insulin, 25OH D3 and human parathyroid hormone (hPTH) were measured in one hundred and eighty-four type 2 diabetic patients followed as outpatients in South Kivu. Levels of 25OH D3 65 pg/ml defined low vitamin D and elevated parathyroid hormone levels, respectively. The HOMA model was used to measure insulin sensitivity and β-cell secretory function. Results: Medians (IQR) were 25.3 (20.4 - 32.4) ng/ml for 25OH D3 and 53.7 (38.4 - 115.7) pg/ml for hPTH. 58.7% of diabetics had insulin resistance, 126 (68.5%) had low vitamin D and 80 (43.5%) had hyperparathyroidism. In multivariate analysis, hPTH (partial r = −0.28;p = 0.0002) and 25OH D3 (partial r = 0.16;p = 0.03) showed an independent association with insulin sensitivity after adjustment for body mass index and waist circumference. Finally, hPTH (partial r = 0.27;p = 0.0002) was the sole determinant of β-cell secretory function. Conclusions: This study confirms the high prevalence of low vitamin D level and secondary hyperparathyroidism and their association with insulin resistance and impaired islet β-cell secretory function among Congolese with type 2 diabetes mellitus. Vitamin D and calcium supplementation should be envisaged for cases of deficiency in this region.

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.

Unraveling colorectal cancer prevention:The vitamin D-gut flora-immune system nexus

Colorectal cancer(CRC)is one of the most common cancers diagnosed in the world.Although environmental and genetic factors play a major role in the pathogenesis of CRC,extensive research has suggested that vitamin D may play a pivotal role in the development of CRC.Vitamin D,primarily obtained through sunlight exposure,dietary sources,and supplements,has long been recognized for its essential functions in maintaining health,including immune regulation.This article delves into the intricate relationship between vitamin D,the immune system,gut flora,and the prevention of CRC.It presents a synthesis of epidemiological data,experimental studies,and clinical trials,highlighting the mechanisms by which vitamin D influences immune cell function,cytokine production,and inflammation.By enhancing the immune system’s surveillance and antitumor activity,vitamin D may offer a promising avenue for CRC prevention.Furthermore,this comprehensive review delves into the prospective clinical applications of vitamin D supplementation and delineates the forthcoming avenues of research in this dynamic domain.Additionally,the paper tentatively outlines a spectrum of prophylactic impacts of vitamin D on CRC,emphasizing its significant potential in reducing CRC risk through shedding light on its mechanisms,encompassing antineoplastic mechanisms,influences on the immune system,and modulation of the gut microbiome.

Vitamin D, selenium in type 2 diabetes and Hashimoto's thyroiditis: Is it effective?

The study by Feng et al,explores treatment approaches for these coexisting conditions.It emphasizes the potential advantages of selenium and vitamin D supplementation but also raises methodological and patient selection concerns.Findings indicate a complex interplay between interventions and disease markers,prompting the need for further research.Despite limitations,the study offers valuable insights into managing the intricate relationship between type 2 diabetes mellitus and Hashimoto's thyroiditis.The authors'contributions shed light on potential treatment avenues,although careful consideration of study design and patient characteristics is warranted for future investigations in this domain.

Unlocking the potential-vitamin D in prostate cancer prevention

Prostate cancer poses a significant health challenge globally,demanding proactive prevention strategies.This editorial explores the emerging role of vitamin D in prostate cancer prevention.While traditionally associated with bone health,vitamin D is increasingly recognized for its broader impact on immune function,cellular signaling,and cancer prevention.Epidemiological studies suggest an intriguing link between vitamin D deficiency and elevated prostate cancer risk,particularly in regions with limited sunlight exposure.Mechanistically,vitamin D regulates cellular processes,inhibiting unchecked cancer cell growth and bols-tering immune surveillance.Personalized prevention strategies,considering individual factors,are deemed essential for harnessing the full potential of vitamin D.To unlock this potential,the future calls for robust research,public awareness campaigns,dietary improvements,and vigilant medical guidance.Collaborative efforts are poised to pave the way toward a future where vitamin D stands as a sentinel in prostate cancer prevention,ushering in hope and improved health for men worldwide.

Carpel Tunnel Syndrome: A Link with Vitamin D, Body Mass Index and Hyperlipidemia

Introduction: Carbai tunnel syndrome [CTS] is compression of the median nerve at the wrist , this causes tingling in the hands, pain, numbness, tingling in the fingers particularly the thumb, index and middle fingers, loss of sensation in the hands and fingers, also weakness in the hands. The aim of the present study was to study a possible association which could be found between electrophysiological data in CTS, BMI, hyperlipidemia, and vitamin D [Vit D] levels. Methods: We used a sample of 40 females of the same age group, who were divided into Group 1 as a control consists of 18 healthy females and Group II consisted of 22 age matched females with clinical and electrophysiological evidence of CTS. We measured atherogenic index [AI] as a marker of hyperlipidemia, body mass index [BMI], Vit D status and electrophysiological tests of CTS. Results: Subjects with CTS had deficient Vit D status, they had significantly high atherogenic index (AI), and significant high BMI all compared to control Group I. Median sensory conduction velocity was significantly correlated negatively with BMI and atherogenic index, and positively correlated significantly with Vit D status. But median sensory and motor action potential latency were significantly correlated positively with BMI and atherogenic index, and negatively correlated significantly with Vit D status The analysis revealed BMI, atherogenic index and Vit D status as predictors of median nerve sensory and motor action potential latency and sensory nerve conduction velocity in CTS. Conclusion: The results of this study suggest that obesity and hyperlipidemia are potent CTS risk factors and declared the direct association between Vit D status and CTS occurrence. Our study supports the notion of the compensatory neuroprotective role of Vit D which could have a direct impact on the nerves integrity as it has an anti-inflammatory property which acts in relieving nervous insults and stress. .

Prevalence of vitamin D deficiency in exclusively breastfed infants at Charoenkrung Pracharak Hospital

BACKGROUND Vitamin D deficiency is a common problem in exclusively breastfed infants,with supplementation recommended by various international medical organizations.However,in Thailand,no advice for routine vitamin D supplementation is available.Thus,this study investigated the prevalence of vitamin D deficiency and its associated factors in exclusively breastfed infants in Bangkok,Thailand.AIM To investigated the prevalence of vitamin D deficiency and its associated factors in exclusively breastfed infants in Bangkok,Thailand.METHODS This descriptive observational cross-sectional study assessed 1094-month-old infants at Charoenkrung Pracharak Hospital from May 2020 to April 2021.The 25-OH vitamin D level of the infants was measured using an electrochemiluminescence binding assay.Vitamin D deficiency was defined as 25-OH level<20 ng/mL,with vitamin D insufficiency 20-30 ng/mL.The sun index and maternal vitamin D supplementation data were collected and analyzed using the independent t-test,univariate logistic regression,and multivariate logistic regression to identify the associated factors.RESULTS The prevalences of vitamin D deficiency and vitamin D insufficiency were 35.78%and 33.03%,respectively with mean serum 25-OH vitamin D levels in these two groups 14.37±3.36 and 24.44±3.29 ng/mL.Multivariate logistic regression showed that the main factors associated with vitamin D status were maternal vitamin D supplementation and birth weight,with crude odds ratios 0.26(0.08–0.82)and 0.08(0.01–0.45),respectively.The sun index showed no correlation with the 25-OH vitamin D level in exclusively breastfed infants(r=−0.002,P=0.984).CONCLUSION Two-thirds of healthy exclusively breastfed infants had hypovitaminosis D.Vitamin D supplementation prevented this condition and was recommended for both lactating women and their babies.

老年髋关节置换术患者围术期血清VitD、CK、CRP/ALB水平变化及其对预后的预测价值

目的探究老年髋关节置换术患者围术期血清维生素D(VitD)、肌酸激酶(CK)、C反应蛋白与清蛋白比值(CRP/ALB)水平变化及对预后的影响。方法选取2020年11月至2021年11月于苏州大学附属第二医院行髋关节置换术治疗的110例老年股骨颈骨折患者,术后6个月通过Harris髋关节功能评分(HHS)评估预后情况,比较预后良好组(HHS分值≥80分)、预后不良组(HHS分值<80分)术前一般资料、疼痛程度[疼痛视觉模拟评分法(VSA评分)]、病情程度[急性生理功能和慢性健康状况评分系统Ⅱ(APACHEⅡ评分)]和围术期血清VitD、CK、CRP/ALB水平,分析术前血清VitD、CK、CRP/ALB与疼痛程度、病情程度的相关性,并分析术后血清VitD、CK、CRP/ALB预测老年股骨颈骨折患者髋关节置换术预后的价值。结果预后良好组术后6个月HHS分值高于预后不良组(t=12.175,P<0.05);预后不良组骨质疏松症发生率、术前APACHEⅡ评分高于预后良好组(P<0.05);预后不良组术前、术后3 d血清VitD水平均低于预后良好组,CK、CRP/ALB均高于预后良好组(P<0.05);术前血清VitD水平与APACHEⅡ评分呈负相关,血清CK、CRP/ALB与APACHEⅡ评分呈正相关(P<0.05);术后3 d血清VitD、CK、CRP/ALB预测老年股骨颈骨折患者髋关节置换术后6个月预后不良的曲线下面积(AUC)均>0.700,联合预测的AUC最大,为0.938。结论老年髋关节置换术患者围术期血清VitD、CK、CRP/ALB与病情程度及预后密切相关,术后早期检测各指标水平在预测预后方面具有一定价值。

骨质疏松症患者25-(OH)VitD_(3)与中医辨证分型的相关性研究

目的讨论骨质疏松症患者血清25-羟维生素D_(3)[25-(OH)VitD_(3)]水平与中医证候辨证分型的关系。方法选择184例骨质疏松症患者,检测患者血清25-(OH)VitD_(3)水平,分析25-(OH)VitD_(3)水平与骨质疏松症各分型分布情况及相关性。结果184例低25-(OH)VitD_(3)水平骨质疏松患者共筛选出肾阳亏虚、肝肾阴虚、脾肾阳虚和血瘀气滞4种证候,按评估阳性占比高低依次为肝肾阴虚、肾阳亏虚、脾肾阳虚、血瘀气滞。4种证候评估阳性骨质疏松症患者在0~9.9 ng·mL^(-1)、10~14.9 ng·mL^(-1)、15~20 ng·mL^(-1)区间段均表现出明显差异(P<0.05)。Spearman相关性分析发现,25-(OH)VitD_(3)水平与肝肾阴虚呈负相关性(P<0.05),与其他3种证候间无明显相关性(P>0.05)。Logistic模型分析发现,仅有25-(OH)VitD_(3)水平是影响肝肾阴虚评估阳性的风险因素(OR=0.751,P=0.044,95%CI:0.569~0.992)。ROC曲线显示25-(OH)VitD_(3)水平评估肝肾阴虚阳性的曲线下面积为0.705、最佳截断值为16.95 ng·mL^(-1)、敏感度0.777、特异性0.667、95%CI:0.541~0.870。结论骨质疏松症患者机体25-(OH)VitD_(3)水平与中医证候中肝肾阴虚证关联性较强,可能是评估该证型的有效指标。

多学科短期干预计划对肥胖症儿童胰岛素抵抗、血清VitD水平的影响

目的探讨多学科短期干预计划对肥胖症儿童胰岛素抵抗、血清VitD水平的影响。方法选取泉州市儿童医院收治的肥胖症患儿74例,收治时间2021年5月至2022年5月,并维持至少6个月的随访。将患者按照肥胖干预计划分成观察组和对照组两组,各37例。其中对照组予饮食结合运动训练干预,观察组予多学科短期干预计划干预。比较两组患儿身高、体重、体脂率、腰围身高比,胰岛素抵抗,血清VitD水平的变化,评估干预效果。结果干预后观察组患儿身高高于对照组,体重、体脂率、腰围身高比低于对照组(P<0.05)。干预后观察组患儿血清VitD缺乏情况少于对照组(P<0.05)。结论多学科短期干预计划在肥胖症患儿的干预中取得理想的效果,可有效控制患儿的体重、体型,同时可改善患儿胰岛素抵抗和25-羟VitD缺乏,使患儿肥胖问题得到改善。

社区H型高血压患者药物基因作用靶点多态性分布及叶酸联合维生素D干预效果研究

背景H型高血压严重影响着人们的健康及生活质量,目前临床上治疗高血压主要根据患者症状和临床经验选择药物,降压效果不理想,急需探寻降压药物基因分布的多态性,为高血压患者进行个体化用药指导。目的探讨济南市社区H型高血压药物作用靶点基因多态性分布及叶酸联合维生素D的干预作用,为该地区开展高血压医防融合精准医疗提供参考依据。方法2020年6月—2022年6月随机抽取山东省济南市槐荫区20家街道办事处社区卫生服务中心200例血压控制不佳的高血压患者为研究对象,治疗前首先进行5类常用抗高血压药物[利尿剂、β受体阻滞剂、血管紧张素转化酶抑制剂(ACEI)、钙离子通道抑制剂(CCB)、血管紧张素Ⅱ受体拮抗剂(ARB)]相关高血压个体化用药基因位点的基因多态性检测。将患者随机分为基因导向治疗组(基因组)与基因导向协同叶酸、维生素D治疗组(基因导向组),每组100例。基因组根据检测的高血压基因作用位点的特点调整用药;基因导向组在基因组治疗方案的基础上同时服用叶酸、维生素D。干预初始(M0)、干预3个月(M3)、干预6个月(M6)时采集患者晨间未服用降压药物情况下坐位收缩压和舒张压。记录患者患病情况、不良反应发生情况、脑卒中发生情况,进行基因测序,检测血清同型半胱氨酸(Hcy)浓度。采用Pearson相关性分析或Spearman秩相关分析探究性别、年龄、收缩压、舒张压与Hcy的相关性。结果研究对象性别(r_(s)=-0.463)、收缩压(r=0.181)、舒张压(r=0.188)与Hcy水平有相关性(P<0.05)。5类抗高血压药物基因作用靶点中,与药物代谢酶基因多态性位点相关的分别是CYP3A5(A6986G)、CYP2C9(c.1075A>C)、CYP2D6(c.100C>T),与药物作用靶点敏感性基因多态性位点相关的是ADRB1、ACEI(I/D)、AGTR1、NPPA。基因组A6986G:CYP3A5*1/*1(AA)、ACEI(I/D):D/D、c.100 C>T:CYP2D6*1/*1(CC)患者M3、M6舒张压低于M0,A6986G:CYP3A5a1/a3(AG)、ADRB1 c.1165 G>C:GG、c.1075 A>C:CYP2C9*1/*3(AC)、c.1075 A>C:CYP2C9*3/*3(CC)患者M6舒张压低于M0,A6986G:CYP3A5*3/*3(GG)、ADRB1 c.1165 G>C:CC、ACEI(I/D):I/I、c.1075 A>C:CYP2C9*1/*1(AA)、AGTR1 c.1166 A>C:AA、NPPA T2238C:TT、c.100 C>T:CYP2D6*10/*10(TT)患者M3、M6收缩压、舒张压低于M0,ADRB1 c.1165 G>C:GC、ACEI(I/D):I/D、c.100 C>T:CYP2D6*1/*10(CT)患者M6收缩压低于M0,M3、M6舒张压低于M0,差异有统计学意义(P<0.05)。Hcy水平组间比较结果显示,M3、M6基因导向组Hcy水平低于基因组,差异有统计学意义(P<0.05)。组内比较结果显示,基因组M6 Hcy水平低于M0,基因导向组M3、M6 Hcy水平低于M0,M6 Hcy水平低于M3,差异有统计学意义(P<0.05)。收缩压、舒张压组间比较结果显示,M3、M6基因导向组收缩压、舒张压低于基因组,差异有统计学意义(P<0.05)。组内比较结果显示,基因组、基因导向组M6收缩压、舒张压低于M0,M6收缩压低于M3,差异有统计学意义(P<0.05)。结论社区H型高血压患者中存在高血压药物相关基因多态性的表达差异,个体化用药效果显著;叶酸联合维生素D协同治疗更能显著降低H型高血压水平。

良性阵发性位置性眩晕患者维生素D状态及影响因素研究

目的 了解北京地区良性阵发性位置性眩晕(BPPV)患者维生素D水平状况,探讨性别、年龄、季节对维生素D水平的影响。方法 将2018年10月—2021年9月就诊于首都医科大学附属北京朝阳医院耳鼻咽喉头颈外科的208例BPPV患者作为研究对象进行回顾性研究。结果 所有BPPV患者血清25-羟维生素D[25(OH)D]水平为15.31(10.68, 21.03)ng/mL。比较不同性别、年龄和各个季节血清25(OH)D水平,男性高于女性,61~70岁年龄组高于其他年龄组;夏季血清25(OH)D水平最高,夏秋季明显高于冬春季。所有纳入研究的BPPV患者维生素D缺乏146例(70.19%);维生素D不足41例(19.71%);维生素D充足21例(10.10%)。回归分析显示性别、年龄和季节均能影响维生素D水平。结论 北京地区BPPV患者维生素D缺乏较为普遍,性别、年龄和季节对维生素D水平有影响。

维生素D与肥胖相互作用的网络药理学研究

目的:通过网络药理学探讨维生素D与肥胖的相关性,并探索影响维生素D与肥胖共同作用靶点的核心蛋白。方法:通过进入西药数据库(DrugBank数据库)检索Vitamin D的相关靶点;通过DisGeNET数据库检索Obesity的相关靶点;利用Venny平台对成分靶点和疾病靶点取交集;将共有靶点导入String构建蛋白-蛋白相互作用(PPI)网络;对药物疾病靶点做蛋白-蛋白互作网络图,并筛选蛋白与蛋白之间互相作用的核心蛋白。结果:共得Vitamin D药物靶点2个;得到肥胖疾病靶点共2821个,取交集得到Vitamin D药物靶点及肥胖疾病靶点1个(VDR);对药物疾病靶点做蛋白-蛋白互作网络图,影响VDR作用的主要蛋白有GC、CYP27B1、MED1、EP300、RXRA、NCOA3、SMAD3、CTNNB1。结论:维生素D可能通过作用于VDR靶点发挥抗肥胖的作用。GC、CYP27B1、MED1、EP300、RXRA、NCOA3、SMAD3、CTNNB1蛋白可以与VDR相互作用,从而影响维生素D与肥胖共同作用靶点的核心蛋白。

前维生素D相对校正因子的研究及测定

目的:测定前维生素D相对校正因子,简化维生素D含量测定的计算方法。方法:通过对各国药品标准中维生素D含量计算方法的研究,采用HPLC法测定前维生素D相对校正因子,并对测定的影响因素进行了考察。结果:统计了国内7家实验室的前维生素D相对校正因子的测定结果,确定了254 nm和265 nm 2个波长下的前维生素D相对校正因子。结论:采用前维生素D相对校正因子法计算维生素D的总量,简化了实验步骤,避免了随机操作误差。该方法快速、准确,为进一步提高维生素D制剂标准奠定了基础。

二甲双胍联合维生素D对糖尿病合并骨质疏松症患者血清胰岛素样生长因子1及骨代谢标志物水平的影响

目的 探讨二甲双胍联合维生素D对糖尿病合并骨质疏松症患者血清胰岛素样生长因子1(IGF-1)及骨代谢标志物水平的影响。方法 选取北京医院2020年3月至2023年3月收治的160例2型糖尿病(T_(2)DM)合并骨质疏松症患者作为研究对象,按照随机数字表法分为对照组和观察组,各80例。对照组给予维生素D联合运动干预和控制饮食等常规血糖控制方法治疗,观察组在上述治疗的基础上外加二甲双胍治疗,2组均治疗6个月。比较2组患者治疗前后空腹血糖、餐后2 h血糖(2 hPG)、糖化血红蛋白(HbA1c)、血钙、血磷、骨钙素、总Ⅰ型胶原氨基端延长肽(T-PⅠNP)、IGF-1、高敏C反应蛋白(hs-CRP)、维生素D_(3)水平以及总有效率。结果 治疗后,2组空腹血糖、2 hPG、HbA1c、血磷、hs-CRP水平均低于治疗前,且观察组均低于对照组(均P<0.05);2组血钙、骨钙素、T-PⅠNP、骨密度、IGF-1、维生素D_(3)水平均高于治疗前、且观察组均高于对照组[(2.82±0.20)mmol/L比(2.40±0.15)mmol/L、(19.9±2.4)ng/L比(13.6±2.1)ng/L、(48±4)μg/L比(37±4)μg/L、(0.98±0.16)g/cm^(2)比(0.78±0.15)g/cm^(2)、(206±35)μg/L比(137±25)μg/L、(37±3)μg/L比(29±3)μg/L](均P<0.05)。观察组总有效率高于对照组(P<0.001)。结论 二甲双胍联合维生素D治疗T_(2)DM合并骨质疏松症效果较好,可更好地控制血糖水平,上调血清IGF-1水平,改善机体骨代谢。

感染性肺炎新生儿的血清25-羟基维生素D与炎症因子的相关性分析

目的分析感染性肺炎新生儿的血清25-羟基维生素D[25-hydroxyvitamin D,25(OH)D]与炎症因子干扰素-γ(infectious pneumonia-γ,IFN-γ)、C-反应蛋白(C-reactive protein,CRP)、白细胞介素-2(interleukin-2,IL-2)水平的相关性。方法选取河北省秦皇岛市第一医院2018年12月至2020年12月收治的100例感染性肺炎新生儿,根据血清25(OH)D水平分为缺乏组(≤15.0μg/L,18例)、不足组(15.1~20.0μg/L,42例)、充足组(>20.0μg/L,40例)。统计3组性别、胎龄、血清25(OH)D水平、出生体重、分娩方式等一般资料和临床资料,比较3组IFN-γ、CRP及IL-2水平,分析新生儿血清25(OH)D水平与IFN-γ、CRP、IL-2水平的相关性。结果3组胎龄、性别、出生体质量、分娩方式比较差异无统计学意义(P>0.05);缺乏组、不足组、充足组新生儿的血清25(OH)D水平逐渐升高,差异有统计学意义(P<0.05)。缺乏组IFN-γ、CRP及IL-2水平均高于不足组、充足组(P<0.05),不足组IFN-γ、CRP及IL-2水平高于充足组(P<0.05)。经Pearson相关分析,感染性肺炎新生儿血清25(OH)D水平与IFN-γ、CRP、IL-2水平呈负相关(P<0.05)。结论新生儿血清25(OH)D越低,维生素D越缺乏,IFN-γ、CRP及IL-2水平越高,感染性肺炎的风险越高。

维生素D受体基因多态性与RSV感染性毛细支气管炎的相关性研究

目的探讨维生素D受体(VDR)基因多态性与呼吸道合胞病毒(RSV)感染性毛细支气管炎的相关性。方法回顾性分析2023年1~6月佛山市妇幼保健院收治的60例RSV感染性毛细支气管炎患儿的临床资料,根据患儿临床表现分为轻症组(n=37)和重症组(n=23),另选择同期30例RSV阴性的健康体检儿童作为对照组。分别采用酶联免疫吸附法检测三组儿童的血清25-羟基维生素D[25(OH)D]、白细胞介素4(IL-4)、白细胞介素5(IL-5)水平,采用限制性片段长度多态性方法分析维生素D受体TaqI、FokI、ApaI、Bsm I基因多态位点,并比较三组儿童的基因型及等位基因频率情况。结果重症组患儿的血清25(OH)D水平为(52.67±12.22)nmol/L,明显低于轻症组的(65.57±13.54)nmol/L,而轻症组又明显低于对照组的(82.57±15.30)nmol/L,IL-4、IL-5分别为(152.28±22.47)ng/L、(51.83±9.83)ng/L,明显高于轻症组的(130.48±21.35)ng/L、(44.72±8.70)ng/L,而轻症组又明显高于对照组的(77.48±15.26)ng/L、(26.52±7.78)ng/L,差异均有统计学意义(P<0.05);经Hardy-Weinberg平衡定律检测不同组别间VDR基因序列等位基因分布的频率,数据均符合平衡定律(P<0.05);重症组患儿的VDR TaqI(rs731236)基因型TT及等位基因C均高于轻症组和对照组,基因型TC、等位基因T型频率均低于轻症组和对照组,差异均有统计学意义(P<0.05),但三组基因型的CC频率分布比较差异无统计学意义(P>0.05);三组儿童的VDR FokI(rs2228570)基因型频率分布比较差异均无统计学意义(P>0.05),但重症组患儿的等位基因C高于轻症组和对照组,T型频率低于轻症组和对照组,差异均有统计学意义(P<0.05);重症组患儿的VDR ApaI(rs7975232)基因型GG及等位基因G高于轻症组和对照组,基因型GT及等位基因A频率分布低于轻症组和对照组,差异均有统计学意义(P<0.05);重症组患儿的VDR Bsm I(rs1544410)基因型GA、AA及等位基因A均高于轻症组和对照组,基因型GG及等位基因G频率分布低于轻症组和对照组,差异均有统计学意义(P<0.05)。结论RSV感染性毛细支气管炎患儿的血清25(OH)D明显较低,VDR TaqI、FokI与患儿发病具有一定相关性,临床上可通过检测患儿VDR基因多态性状况,进一步分析患儿病情严重程度状况,并及时根据遗传体征状况提供针对性的预防和治疗方案。

个体化维生素D补充治疗绝经后妇女骨质疏松症的临床应用

目的探讨绝经后骨质疏松症患者血清25-羟维生素D的水平,在患者中进行个体化维生素D补充的临床应用价值与意义。方法回顾性分析2021年6月至2023年6月于河南科技大学第一附属医院诊断为骨质疏松症并接受地舒单抗治疗的绝经后妇女患者的临床数据。86例初次诊断为绝经后骨质疏松症的患者纳入研究。根据维生素D补充方式将患者分为两组,对照组45例(固定剂量组)和观察组41例(个体化剂量组:依据患者血清维生素D水平,以≥30ng/mL为目标进行补充)。观察并对比两组患者骨密度值及骨代谢情况。结果治疗前两组患者在年龄、身高、体重、血清25(OH)D浓度、BMI和腰椎股骨颈的骨密度方面均无显著性差异(P>0.05)。治疗后观察组β-1型胶原交联羧基端肽(β-CTX)、1型原胶原氨基端前肽(P1NP)水平降低较对照组更显著,25羟维生素D水平高于对照组,差异有统计学意义(t值分别为2.052,2.608和9.167,P<0.05);观察组股骨颈、腰椎L2节段骨密度水平均高于对照组,差异有统计学意义(t值分别为2.275,2.560,P<0.05)。结论接受地舒单抗药物治疗的绝经后骨质疏松症患者中,补充维生素D与骨密度值增加相关,且个体化补充能够取得更多获益,值得临床推广。