血清25-羟维生素D浓度检测对膝骨关节炎临床诊疗意义

目的：研究与探讨血清25－羟基维生素D浓度检测对膝骨关节炎临床诊疗的指导意义。方法随机抽取2011年6月至2011年10月以及2012年6月至2012年10月期间骨科门诊主诉有膝关节疼痛患者1174名,采用罗氏诊断试剂盒检测患者血清中的25－羟基维生素D浓度。结果1174例患者平均年龄（53．61±15．10）岁,血清25－羟维生素D浓度平均值为15．55 ng／ml,维生素D缺乏者（＜20 ng／ml）占48．12％（524例）,其中严重缺乏者（＜10 ng／ml）占26．35％（287例）。2011年测得血清25－羟基维生素D浓度平均值为13．27 ng／ml（参考值为11．10～42．90 ng／ml）;2012年测得血清25－羟基维生素D浓度平均值为22．53 ng／ml（参考值为20～32 ng／ml）。结论血清25－羟基维生素D浓度检测在膝骨关节炎诊疗中具有重要指导意义。本次研究中应用的罗氏诊断血清25－羟维生素D3检测试剂参考值有波动,直接导致2011年度与2012年度同期所检测出的患者血清25－羟基维生素D浓度存在一定的偏差。     

维生素D与骨关节炎

骨关节炎(OA)是一类以渐进性软骨磨损、骨赘形成为主要特征的退行性疾病。最近的研究认为,OA的发生与进展是多因素的,涉及软骨、关节下骨、滑膜组织、神经肌肉组织等多方面。OA的确切病因和发病机制仍不清楚,尚无法从根本上阻止和治疗。在世界范围内,维生素D缺乏的状况愈发严峻,越来越多的证据显示维生素D与骨关节炎的发病和进展存在密切的联系。本文回顾性地总结与分析维生素D与骨关节炎的相关文献,展示维生素D缺乏的现状,探讨维生素D与骨关节炎之间的关系及其相应的作用机制。     

大庆市城区部分居民血清维生素D水平评估

目的了解大庆市居民血清维生素D水平,为骨质疏松症(osteoporosis,OP)防治提供依据。方法 2014年3月至2016年4月招募大庆市城区居民4874名,其中0～10岁864人,11～20岁298人,21～30岁155人,31～40岁580人,41～50岁888人,51～60岁927人,61～70岁750人,70岁以上412人。采集受试者清晨空腹静脉血,应用酶联免疫法测定血清25-羟基维生素D[25 hydroxy vitamin D,25(OH)D]浓度。以血清25(OH)D30 nmol/L为维生素D缺乏;血清25(OH)D在30～49.9 nmol/L之间为维生素D不足;血清25(OH)D≥50 nmol/L为维生素D充足。评估大庆城区居民血清维生素D水平。结果大庆城区部分居民血清25(OH)D平均水平为(16.89±11.92)nmol/L,0～10岁组血清25(OH)D平均水平为(27.44±14.90) nmol/L;11～20岁组血清25(OH)D平均水平为(13.86±8.51)nmol/L;21～30岁组血清25(OH)D平均水平为(15.40±13.41) nmol/L;31～40岁组血清25(OH)D平均水平为(17.57±12.31) nmol/L;41～50岁组血清25(OH)D平均水平为(13.01±8.08)nmol/L;51～60岁组血清25(OH)D平均水平为(14.31±9.20)nmol/L;61～70岁组血清25(OH)D平均水平为(14.94±9.33)nmol/L;70岁以上组血清25(OH)D平均水平为(14.32±9.58)nmol/L。不同年龄组相比较(完全随机方差分析one way ANOVA检验),差异有统计意义(F=152.67,P0.01)。经独立样本t检验,不同性别间差异有统计意义(t=3.05,P=0.002),男性高于女性。结论大庆市部分居民普遍存在维生素D缺乏,女性维生素D水平低于男性。     

云南省某医院骨科门诊患者血清维生素D水平检测与分析

目的 检测骨科门诊患者血清总25-羟基维生素D[25(OH)D]水平,分析不同性别和年龄段患者血清维生素D营养状态.方法 纳入2018年12月至2020年12月就诊于昆明市第一人民医院骨科门诊并采用化学发光法(免疫法)检查血清25(OH)D水平的2500例患者,记录患者的性别、年龄、血清25(OH)D值,以血清25(O...     

绝经后妇女维生素D状况与膝骨关节炎 相关性的研究

目的 探讨维生素D与膝骨关节炎之间的关系.方法 选取133例绝经妇女,通过拍摄负重的膝关节正位,采用Kellgren和Lawrence骨性关节炎的分级标准进行分级,检测血清25羟D[25(OH)D],同时检测血钙、磷、碱性磷酸酶、肝肾功能及空腹血糖以排除有影响维生素D的其他因素者.结果 本组133例患者,平均年龄(58.41±5.25)岁,血清25(OH)D平均值为14.00 ng/mL,维生素D缺乏者(<20ng/mL)占86%,其中维生素D严重缺乏者(<10 ng/mL)占23%,维生素D不足者(20～29 ng/mL)占13%,只有2例维生素D充足(>30 ng/mL)占2%.在通过拍摄负重的膝关节正位,采用Kellgren和Lawrence骨性关节炎的分级中显示,骨关节炎级别在4级的病人维生素D全部低于10ng/mL,骨关节炎级别在0级的病人维生素D全部大于20 ng/mL.结论 血清维生素D的水平可能与膝骨关节炎的影像学进展存在相关性,因此,通过改善年老患者的血清维生素D的水平可能有助于防治膝骨关节炎.但由于样本量小,我们认为尚需扩大样本进一步研究.     

补充维生素D对膝关节骨关节炎的治疗效果Meta分析

目的提供关于补充维生素D对膝关节骨关节炎影响的证据。方法计算机检索The Cochrane Library、PubMed、中国知网、中国生物医学数据库与万方数据库,搜集补充维生素D治疗膝关节骨关节炎的临床随机对照试验,检索时间为建库至2017年10月。采用Rev Man 5.3软件进行系统评价和Meta分析。结果最终纳入文献4篇,共1130例膝关节骨关节炎患者。Meta分析结果显示:补充维生素D对缓解膝关节疼痛具有统计学意义[SMD=-0.32,95%CI:(-0.63,-0.02)],在亚组分析中,无论低25(OH)D水平[SMD=-0.57,95%CI:(-1.41,0.27)]研究对象或高25(OH)D水平[SMD=-0.12,95%CI:(-0.28,0.04)]研究对象中补充维生素D对膝关节疼痛都没有显著影响。补充维生素D对胫骨软骨体积无影响[SMD=0.12,95%CI:(-0.05,0.29)]。在关节间隙结构改善方面差异无统计学意义[SMD=0.07,95%CI:(-0.08,0.23)]。结论目前缺乏强有力的证据来支持补充维生素D在膝关节骨关节炎患者中能对病情起到根本性作用。还需要进行更精心化设计的、更高质量的、样本量更大的、更长随访时间的临床随机对照试验来进一步明确补充维生素D对膝关节骨关节炎患者病情的影响。     

老年女性晒太阳与其血清25-羟基维生素D关系的调查

目的调查老年女性体内维生素D的含量情况,以及血清25-羟基维生素D[25(OH)D]与晒太阳的关系。方法调查243名老年女性平时晒太阳的情况,年龄61~93岁,平均(81±4)岁,并检测其血清25(OH)D水平,然后分析两者之间的关系。结果老年女性血清25(OH)D正常率仅为7.41%。在243名老年女性中,坚持晒太阳的有157名(64.61%),其25(OH)D含量为(16.81±9.61)ng/ml,不晒太阳的有86名(35.39%),其25(OH)D含量为(13.34±7.78)ng/ml,两者在25(OH)D含量上差异有统计学意义(P0.01)。结论老年女性维生素D正常率极低,而晒太阳是提高老年女性血清25(OH)D含量的重要手段。     

广州地区骨质疏松症患者冬季维生素D水平现状分析

目的调查广州地区冬季骨质疏松症患者体内维生素D(Vit D)水平的状况。方法随机选取2014年12月至2015年2月我院299例年龄≥50岁骨质疏松症患者,采集其清晨空腹静脉血,所有研究对象均采用Cobase 6000型电化学发光仪(瑞士,罗氏诊断)检测血清25-羟维生素D(25(OH)D)和甲状旁腺激素(PTH)水平,日立7180型自动生化分析仪测定钙(Ca)、磷(P)及碱性磷酸酶(ALP)水平。双能X线吸收仪检测腰椎和股骨近端骨密度(BMD),SPSS 16.0软件进行数据分析。结果299例骨质疏松症患者,其中男性患者63例,25(OH)D平均水平为(52.75±17.30)nmol/L,女性患者236例,25(OH)D平均水平(53.97±16.11)nmol/L。其中Vit D正常者仅占3.3%,缺乏者占47.6%,不足者占44.8%,严重不足者占4.3%。这些患者普遍存在着25(OH)D水平不足现象,其中Vit D缺乏和不足所占比例较大,且男女两组的25(OH)D水平无统计学差异。结论本研究显示广州地区冬季骨质疏松症患者25(OH)D不足和缺乏现象较普遍,且无性别差异,补充足量Vit D,需要重视及积极治疗,定期监测25(OH)D水平,为临床骨质疏松症的防治提供一定的数据参考。     

贵阳市1 000例患者25-羟维生素D缺乏及临床特征

摘要:目的 研究某医院骨科保守治疗患者25-(OH)-VitD水平及临床特征。方法 回顾性分析2016年1月-2021年6月在贵州省骨科医院接受保守治疗患者的血清 25-(OH)-VitD的结果，分析25-(OH)-VitD与正常值下限之间的差异情况,分析该类患者25-(OH)-VitD的分布特点与临床特征。结果 本地区研究对象25-(OH)-VitD均值为(18.354±6.294) ng/mL,与正常下限30 ng/mL的差值为–11.646（95 % CI：–12.037~11.255）。单样本t检验结果提示，研究对象的25-(OH)-VitD均值与25-(OH)-VitD理想下限的差异有统计学意义（t= –58.507,P=0.000）。不同性别25-(OH)-VitD水平存在显著性差异(P=0.000<0.01)。体质量指数与25-(OH)-VitD存在正相关。女性、低体质量指数、高龄是25-(OH)-VitD缺乏的危险因素。研究人群的碱性磷酸酶与25-(OH)-VitD水平存在负相关。结论 贵阳地区经骨科保守治疗颈肩腰腿痛住院的患者25-(OH)-VitD存在普遍性不足。女性、低体质量指数、高龄是25-(OH)-VitD缺乏的危险因素。研究对象的碱性磷酸酶与25-(OH)-VitD水平存在负相关     

维生素K2联合维生素D3治疗青壮年早期膝骨关节炎的研究

目的探讨维生素K2联合维生素D3治疗青壮年早期膝骨关节炎的作用。 方法2016年1月至2017年6月广州医科大学附属第二医院骨外科门诊因膝关节疼痛的患者共387例。符合早期膝骨关节炎(KOA)的青壮年患者132例,均给予相同剂量的维生素K2和维生素D3(VD)口服,随访6个月,通过观察服药前后血清25-OH-VD、血清总Ⅰ型胶原氨基端延长肽(P1NP)检测、视觉模拟评分(VAS)及股四头肌肌力的比较,维生素K2和维生素D3治疗前后各指标采用配对t检验评价治疗效果。 结果随访6个月后,血清25-OH-VD(t ＝ 2.664)、血清P1NP(t＝3.265 )的水平及股四头肌肌力(最大肌力t ＝3.005;平均肌力t ＝2.564)均较用药前增加(均为P<0.05),总体VAS评分较用药前下降( t＝3.762,P<0.05)。同时治疗前发现其中33例患者膝关节MRI检查中提示胫骨平台或股骨内侧髁存在不同程度的软骨丢失和骨髓水肿。 结论维生素K2和维生素D3联合应用能改善青壮年膝骨关节炎患者的骨营养代谢,并促进成骨作用从而改善膝关节疼痛症状和活动能力。因此对于青壮年KOA,应该早期干预治疗,从而起到抑制作用。     

Effect of aging on vitamin D stores and bone density in women

Summary It has been suggested that the decrease in vitamin D stores with aging is a contributory cause of age-related osteoporosis. We studied this question by measuring bone mineral density (BMD) of the mid-radius, distal radius, and lumbar spine assessed by single and dual photon absorptiometry in 122 women, aged 33–94 years, selected from a random sample of Rochester, MN residents. We measured serum 25-hydroxyvitamin D (25OHD), the major storage from of vitamin D, as well as 25OHD₃ (representing both endogenous and exogenous sources of vitamin D), and 25OHD₂, (representing only exogenous sources). Both baseline serum total 25OHD (r=−0.29,P<0.001) and the metabolite 25OHD₃ (r=−0.41,P<0.001), were negatively associated with age at baseline. After adjusting for the effect of age by multiple regression analysis, there was no association between serum levels of 25OHD₂, 25OHD₃, or total 25OHD and BMD for any of the three skeletal scanning sites. Thus, in a northern American population we cannot demonstrate that reduced bioavailability of vitamin D plays a major role in age-related bone loss.     

High prevalence of vitamin D deficiency in elderly patients with advanced osteoarthritis scheduled for total knee replacement associated with poorer preoperative functional state

Vitamin D deficiency has been reported previously in patients with osteoarthritis undergoing total hip arthroplasty. We found a high prevalence of vitamin D deficiency in elderly patients with advanced knee osteoarthritis scheduled for total knee replacement and also a significant association with a lower preoperative functional state. A review of the literature is given on vitamin D deficiency in patients with knee osteoarthritis and the association with lower outcome scores after arthroplasty is discussed.     

Standard multivitamin supplementation does not improve vitamin D insufficiency after burns

Children suffering severe burns develop progressive vitamin D deficiency because of inability of burned skin to produce normal quantities of vitamin D₃ and lack of vitamin D supplementation on discharge. Our study was designed to determine whether a daily supplement of a standard multivitamin tablet containing vitamin D₂ 400 IU (10 μg) for 6 months would raise serum levels of 25-hydroxyvitamin D [25(OH)D] to normal. We recruited eight burned children, ages 5–18, whose families were deemed reliable by the research staff. These children were given a daily multivitamin tablet in the hospital for 3 months in the presence of a member of the research staff and then given the remainder at home. At 6 months, the subjects returned for measurements of serum levels of 25(OH)D,1,25-dihydroxyvitamin D [1,25(OH)₂D], intact parathyroid hormone (iPTH), Ca, P, albumin, and total protein as well as bone mass by dual energy X-ray absorptiometry. Serum 25(OH)D levels were compared to a group of seven age-matched burned children studied at an earlier date without the vitamin supplement but with the same method of determination of 25(OH)D at 6 months post-burn. In addition, the chewable vitamins were analyzed for vitamin D₂ content by high performance liquid chromatography. Serum concentration of 25(OH)D was 21 ± 11(SD) ng/ml (sufficient range 30–100) with only one of the eight children having a value in the sufficient range. In comparison, the unsupplemented burn patients had mean serum 25(OH)D level of 16 ± 7, P = 0.33 versus supplemented. Serum levels of 1,25(OH)₂D, iPTH, Ca, P, albumin, and total protein were all normal in the supplemented group. Vitamin D₂ content of the chewable tablets after being saponified and extracted was 460 ± 20 IU. Bone mineral content of the total body and lumbar spine, as well as lumbar spine bone density, failed to increase as expected in the supplemented group. No correlations were found between serum 25(OH)D levels and age, length of stay, percent body surface area burn or third-degree burn. Supplementation of burned children with a standard multivitamin tablet stated to contain 400 IU of vitamin D₂ failed to correct the vitamin D insufficiency.     

Low circulating vitamin D in obesity

Summary Previous studies demonstrated decreases in serum 25-hydroxyvitamin D in obese subjects. Studies were carried out to determine whether serum vitamin D is low in obesity. The results indicate that serum vitamin D is significantly lower in obese than in nonobese individuals and may contribute to lower serum 25-hydroxyvitamin D in obesity.     

Prevalence of vitamin D depletion among subjects seeking advice on osteoporosis: a five-year cross-sectional study with public health implications

Summary We assessed vitamin D nutritional status in unselected consecutive patients seeking advice on osteoporosis. The prevalence of vitamin D depletion ranged from 15–72% depending upon the cut-off levels used for serum 25-hydroxyvitamin D, and the prevalence did not change over the 5 years of the study. Introduction Vitamin D depletion is a significant public health problem and has been studied in different populations using different cut-off levels, but the optimal level is yet to be established. Methods In a cross-sectional study of 2924 patients seen for osteoporosis advice we determined the prevalence of vitamin D depletion, as assessed by 25-hydroxyvitamin D (25-OHD), using three different cut-off levels stratified by gender, race and the year of the study over 5 years. Results Mean age was 68.3 ± 10.0 years; 90% women and 88% white. Mean 25-OHD level was 24.6 ± 10 ng/ml and mean PTH was 48.4 ± 32 pg/ml. The prevalence of vitamin D depletion was 15% with a cut-off level of <15 ng/ml, and rose to 32% and 72% with cut-off levels <20 ng/ml and <30 ng/ml, respectively. The prevalence was higher in men and blacks and remained constant over 5 years, regardless of the cut-off level. The expected inverse relationship between 25-OHD and PTH was observed irrespective of gender or ethnicity. Conclusions The prevalence of vitamin D depletion in patients seeking advice for osteoporosis is high and did not change over the 5 years of the study.     

Changes in 25-Hydroxyvitamin D3 to oral treatment with vitamin D3 in postmenopausal females with osteoporosis

Summary  This study reports on oral treatment with different doses of vitamin D3 ranging from 25 to 200 μg in females with 25-hydroxyvitamin D3 levels < 60 nmol/L screened for participation in an osteoporosis trial. A guidance to safely and efficiently achieve 25-hydroxyvitamin D3 levels > 60 nmol/L is presented. Introduction  The importance of vitamin D for skeletal health has been implemented in clinical trials in osteoporosis. The threshold of 25-hydroxyvitamin D for inclusion has changed from 30 to 60 nmol/L. This study reports on oral treatment with different doses of vitamin D3 in females with 25-hydroxyvitamin D3 levels < 60 nmol/L. Methods  In 131 postmenopausal females screened for participation in an osteoporosis trial, the 25-hydroxyvitamin D3 concentration was < 60 nmol/L. They were treated with 25 (n = 22), 50 (n = 19), 75 (n = 19), 100 (n = 41) or 200 μg (n = 30) of vitamin D3 daily for at least 10 days. Results  In the females treated with 25, 50, 75, 100 and 200 μg of vitamin D3 daily the 25-hydroxyvitamin D3 concentrations increased significantly from 32.4 ± 2.7 (mean ± SEM) to 50.8 ± 2.9, from 46.7 ± 2.8 to 65.8 ± 2.6, from 41.6 ± 2.7 to 67.4 ± 2.9, from 46.7 ± 1.4 to 64.4 ± 2.2 and from 42.1 ± 2.0 to 71.2 ± 2.8 nmol/L, respectively (p < 0.001). S-calcium increased significantly but within the reference range (p < 0.006). Conclusion  Oral vitamin D3 safely increased 25-hydroxyvitamin D3 concentrations in all females above 60 nmol/L. This study demonstrates how to achieve the new recommended 25-hydroxyvitamin D concentrations within the screening period of a clinical trial.     

中老年人维生素D、骨密度水平与髋部脆性骨折的相关性研究

目的 探讨中老年人维生素D（VitD）、骨密度（bone mineral density, BMD）水平与髋部脆性骨折的相关性。方法 选取2019年1月至2020年8月在岳阳市人民医院接受治疗的50岁以上患者830例,骨折患者135例（骨折组）,非骨折患者695例（非骨折组）。采集所有研究对象的血清,用电化学发光法测定血清25(OH)D水平,应用双能X线吸收仪测定其腰椎及髋部BMD,并在测定骨密度的同时测量患者身高、体重,计算体质量指数（body mass index, BMI）,观察骨折组与非骨折组之间的VitD与BMD差异。结果 ①所有研究对象中25(OH)D严重缺乏者占16.1 %、缺乏者占34.7 %、轻度缺乏者占29.8 %、充足者占19.4 %,男性VitD水平高于女性(P<0.001)。而不同年龄和BMI的VitD水平无统计学差异（P=0.878、0.346）;②所有研究对象的腰椎、股骨颈BMD (T值)平均为–2.64±1.56及–1.43±1.24,不同性别、年龄、体质量指数研究对象的腰椎及股骨颈BMD水平差异有统计学意义(P<0.001);③髋部骨折组平均VitD为(20.26±10.76) ng/mL,非骨折组为(21.18±10.65) ng/mL,两组间无显著差异(P=0.304);④髋部骨折组腰椎、股骨颈T值低于非骨折组(P<0.001)。对骨折影响因素行单因素分析表明VitD、腰椎T值和股骨颈T值、年龄、体质量指数是髋部脆性骨折的危险因素(P＜0.05)。多因素分析表明年龄、体质量指数、股骨颈T值是髋部骨折的独立危险因素（P＜0.05）,而VitD与腰椎T值对骨折的影响呈现一定的风险增大趋势,但无统计学意义。结论 岳阳地区50岁以上人群存在较低的BMD及VitD水平。年龄、体重、体质量指数、股骨颈BMD是中老年人髋部骨折的独立危险因素,VitD不是髋部骨折的独立危险因素。