双能X线骨密度仪测量双侧前臂骨面积,骨矿含量和骨矿密度的比较

目的比较健康人优势和非优势前臂的骨面积（Ａｒｅａ）、骨矿含量（ＢＭＣ）和骨矿密度（ＢＭＤ）。方法采用双能Ｘ线骨密度仪测量５５例１６～７３岁（平均年龄５２岁）健康志愿双侧前臂（优势臂均为右臂）的Ａｒｅａ、ＢＭＣ和ＢＭＤ。结果右前臂各部位Ａｒｅａ、ＢＭＣ高于左前臂（Ｐ＜０．００１和Ｐ＜０．０５），除桡骨远端１／３段ＢＭＤ右前臂显高于左前臂外（Ｐ＜０．０１），其余部位ＢＭＤ左右侧无差别。结论优势臂的     

骨超声衰减与双能X线吸收法测量骨密度的相关性研究

目的： 探讨跟骨宽带超声衰减诊断骨质疏松的临床价值。方法： 对一组５３ 例绝经期老年女性用超声衰减成像扫描仪测量左跟骨宽带超声衰减 （ＢＵＡ）, 并用双能Ｘ 线吸收法 （ＤＥＸＡ） 测量其腰椎Ｌ２－Ｌ４ 骨密度 （ＢＭ ＤＬ２－Ｌ４） 及右髋骨密度 （ＢＭ ＤＨ）, 将上述两种方法所测得的参数进行相关分析。结果： 左跟骨 ＢＵＡ 与腰椎ＢＭ Ｄ 呈中度相关 （ｒ＝ ０．６６１, Ｐ＜ ０．０００１）, 左跟骨ＢＵＡ 与右髋ＢＭ Ｄ 呈中度相关 （ｒ＝ ０．６１８, Ｐ＜ ０．０００１）, 左跟骨ＢＵＡ 与腰椎ＢＭ Ｄ、右髋ＢＭ Ｄ 诊断骨质疏松齐同率为８６．８％ 。结论： 跟骨ＢＵＡ 是评价骨密度的有效指标, 超声衰减成像技术是临床诊断骨质疏松的又一实用的新方法。     

颅脑损伤患者血清和脑脊液中髓鞘碱性蛋白含量变化及其意义

目的：探讨颅脑损伤患者血清和脑脊液（ＣＳＦ）中髓鞘碱性蛋白（ＭＢＰ）含量变化及其与脑损伤的关系。方法：应用５１４ＭＣ酶标仪，采用酶联免疫吸附法分别测定弥漫性轴索损伤（ＤＡＩ）、颅内血肿（ＩＣＨ）和硬膜外血肿（ＥＤＨ）共６０例颅脑损伤患者（病例组）的血清和ＣＳＦ中ＭＢＰ含量，并与同期腰椎麻醉手术的２０例非脑损伤患者（对照组）作对比。结果：病例组患者血清和ＣＳＦ中ＭＢＰ含量均高于对照组；ＤＡＩ组ＣＳＦ中ＭＢＰ含量与ＩＣＨ组间无显著性差异（Ｐ＞０．０５），但２组间血清ＭＢＰ含量差异显著（Ｐ＜０．０１）；ＥＤＨ组ＣＳＦ和血清ＭＢＰ含量均低于ＤＡＩ组和ＩＣＨ组（Ｐ均＜０．０１），但稍高于对照组（Ｐ＜０．０１，Ｐ＞０．０５）。结论：重型颅脑损伤患者血清和ＣＳＦ中ＭＢＰ含量增高，其上升水平与脑损伤类型及损伤程度有关。     

丛集性头痛的脑血流研究

用ＴＣＤ脑血流分析技术对丛集性头痛患者丛集期之无头痛时与头痛时的脑血流速度（ＭＦＶ）进行了研究。患者共１８例，均为男性，平均年龄３０．０±５．６岁。正常对照组也均为男性，平均年龄３２．８±９．９岁。以ＴＣＤ测定了颅内双侧ＭＣＡ、ＡＣＡ、ＰＣＡ以及ＢＡ的ＭＦＶ。结果发现：（１）无头痛时，患者诸动脉之ＭＦＶ与正常对照组比较均无显著差异；（２）头痛时，其痛侧ＭＣＡ之ＭＦＶ与非头痛侧的ＭＦＶ比较显著升高（Ｐ＜０．０１），ＡＣＡ则相反，即显著降低（Ｐ＜０．０１）；头痛时，头痛侧与该侧非头痛时比较，头痛时ＭＣＡ的ＭＦＶ显著高于非头痛时（Ｐ＜０．０１），而ＡＣＡ则相反（Ｐ＜０．０１）。结果表明：丛集性头痛在丛集期头痛时颈内动脉系统之主要分支确有血管收缩，也有扩张的表现。并对其发病机理进行了探讨。     

甲状腺机能亢进症患者骨代谢的改变

本文对未治疗后甲状腺机能亢进症（简称甲亢）患者７０例进行了骨矿含量（ＢＭＣ）和骨密度（ＢＤ）的测定，并测定相应年龄、性别的６０例健康人的ＢＭＣ和ＢＤ，对同性别的ＢＭＣ和ＢＤ分别进行显著性ｔ检验，结果法甲亢组ＢＭＣ和ＢＤ均低于健康对照组，提示甲亢患者存在着不同程度的骨质疏松。     

骨矿含量测定在老年人骨关节病康复评价中的价值

目的：探讨骨矿含量测定在老年人骨关节病康复评价中的价值。方法：使用ＳＰＡ－ＩＶ型骨矿分析仪器对１０７例６０岁以上老年人骨关节病患者进行骨矿含量测定，并对其中４１例在治疗前后的骨矿含量与其症状改变的关系进行分析。结果：４９例男性的测定值为：０．５９４士０．０９７（ｇ／ｃｍ２）；５８例女性为：０．４６９±０．０８９（ｇ／ｃｍ２）；均显著低于四川省普查结果的正常值（Ｐ≤０．０５）；其中８６例低于该正常值（即检出率为：８０．３７％）：在７２例有Ｘ线片“骨质密度改变”老中的６４例低于该正常值，即两者符合率为：８８．８９％。有４１例经过康复治疗，其中３６例的症状有缓解，其骨矿含量由治疗前男性０．５８５士０．０８１（ｇ／ｃｍ２）和女性０．４６３±０．０７９（ｇ／ｃｍ２）分别增加至治疗后的０．５９１士０．０９２（ｇ／ｃｍ２）和０．４９６土０．０９０（ｇ／ｃｍ２），结论：采用该法测定骨矿含量，简便、快速、精度高，属量化指标，无创伤，对老年人骨关节病的康复评价有一定价值；老年人骨关节病的发生发展可能与其骨矿含量有一定关系。     

去甲斑蝥素致大鼠多脏器功能失常综合征的动态观察

目的：探讨多脏器功能失常综合征（ＭＯＤＳ）病程中重要脏器功能的变化以及与氧自由基的关系。方法：用ＳＤ大鼠制作ＭＯＤＳ模型,动态检测脏器功能及血清超氧化物歧化酶（ＳＯＤ）、谷胱甘肽过氧化物酶（ＧＳＨ Ｐｘ）和丙二醛（ＭＤＡ）的变化。结果：血清丙氨酸氨基转移酶（ＡＬＴ）、肌酸激酶及其同工酶（ＣＫ 和ＣＫ ＭＢ）和肌酐（Ｃｒ）均明显升高,其中ＣＫ ＭＢ于１２ 小时明显升高,１８ 小时达到高峰（Ｐ＜ ０．０１）;ＣＫ于１２小时最先达到衰竭标准（Ｐ＜ ０．０１）;ＡＬＴ与Ｃｒ均在２４ 小时后达到衰竭标准（Ｐ＜ ０．０５）。同时ＳＯＤ、ＧＳＨ Ｐｘ活性降低和ＭＤＡ含量增多（Ｐ均＜ ０．０５）。ＭＤＡ与ＣＫ、ＡＬＴ和Ｃｒ之间呈正相关关系,ｒ值分别为０．８４７、０．６３４和０．５６７（Ｐ均＜ ０．０１）。结论：在去甲斑蝥素致大鼠ＭＯＤＳ的病程中,心功能衰竭出现在先,然后为肾和肝功能衰竭。器官功能受损与氧自由基有关。     

休克患者血浆肾上腺髓质素与血管阻力变化的关系

目的：观察休克患者血浆肾上腺髓质素（ＡＤＭ）与血管阻力变化,探讨其在休克病理生理过程中的作用。方法：应用放射免疫方法检测４６ 例休克患者血浆ＡＤＭ 浓度,无创胸导生物电阻抗方法测定平均动脉压（ＭＢＰ）、全身血管阻力（ＳＶＲＩ）和心排指数（ＣＩ）。结果：休克组治疗前血浆ＡＤＭ 浓度明显高于正常对照组（Ｐ＜０．０１）;感染性休克组高于非感染性休克组（Ｐ＜ ０．０５）;死亡组高于存活组（Ｐ＜ ０．０５）;感染性休克组ＳＶＲＩ较其他组明显降低,而ＣＩ较正常组略高,其他休克组则明显降低（Ｐ＜ ０．０５）。结论：ＡＤＭ 与血管阻力变化相关,并参与了休克的病理生理过程。     

汉族原发性胆汁性胆管炎患者抗线粒体抗体 Ｍ２ 亚型 抗原表位分布及其临床价值

目的 探讨汉族原发性胆汁性胆管炎（ＰＢＣ）患者抗线粒体抗体 Ｍ２ 亚型（ＡＭＡ?Ｍ２）抗原表位分布情况及其临床价值。 方法 采用 Ｒｅｄ ／ ＥＴ 重组技术制备 ＡＭＡ?Ｍ２ 抗原表位蛋白 ＰＤＣ?Ｅ２、ＢＣＯＡＤＣ?Ｅ２ 和 ＯＧＤＣ?Ｅ２，建立相应的 ＥＬＩＳＡ 检测方法，对 ３７４ 例 ＰＢＣ 患者抗原表位分布进行分析。 比较 ＡＭＡ?Ｍ２ 主要抗原表位组合模式间清蛋白－胆红素评分（ＡＬＢＩ）结果的差异，熊 去氧胆酸（ＵＤＣＡ）药物生化应答和不应答患者抗原表位分布的差异。 结果 ３７４ 例 ＰＢＣ 患者血清与 ＰＤＣ?Ｅ２、ＢＣＯＡＤＣ?Ｅ２ 和 ＯＧＤＣ?Ｅ２ 抗原表位有反应率分别为 ８６．６％、８８．０％和 ３５．０％。 与 ＰＢＣ 患者血清有反应性的常见抗原表位模式（ ＰＤＣ?Ｅ２＋ ＢＣＯＡＤＣ?Ｅ２＋ＯＧＤＣ?Ｅ２、ＰＤＣ?Ｅ２＋ＢＣＯＡＤＣ?Ｅ２、ＰＤＣ?Ｅ２ 和 ＢＣＯＡＤＣ?Ｅ２）间 ＡＬＢＩ 结果的差异有统计学意义（Ｐ＜０．０５），ＵＤＣＡ 生 化不应答患者血清与 ＢＣＯＡＤＣ?Ｅ２ 的反应率（ ８９． ９％） 高于应答患者（ ７７． ９％），差异有统计学意义（ Ｐ ＜ ０． ０５）。 结论 与 ＡＭＡ?Ｍ２抗原表位 ＰＤＣ?Ｅ２、 ＢＣＯＡＤＣ?Ｅ２ 和 ＯＧＤＣ?Ｅ２ 同时有反应性的 ＰＢＣ 患者疾病预后不佳的风险较高， ＰＤＣ?Ｅ２ 和 ＢＣＯＡＤＣ?Ｅ２抗原表位可能与 ＵＤＣＡ 治疗应答相关。     

复方丹参注射液对兔内毒素休克的防治作用

目的：通过测定兔内毒素休克时肿瘤坏死因子（ＴＮＦ）和自由基的变化，探讨复方丹参注射液对兔内毒素休克的防治作用。方法：健康家兔２４只随机分为３组，每组８只。对照组（Ａ组）输入与其它２组等量的０．９％氯化钠液；内毒素组（Ｂ组）静注精制内毒素；防治组（Ｃ组）于注入内毒素前输入复方丹参注射液。实验期间定时测定ＴＮＦ、丙二醛（ＭＤＡ）含量和超氧化物歧化酶（ＳＯＤ）活性，同时监测平均动脉压（ＭＡＰ）、心率（ＨＲ）和计实验７小时兔存活数。结果：在整个实验时间内，Ａ组各项指标均保持稳定（Ｐ均＞０．０５）；Ｂ组ＴＮＦ和ＭＤＡ均升高（Ｐ均＜０．０５），ＳＯＤ活性降低（Ｐ均＜０．０５），ＭＡＰ、ＨＲ均下降（Ｐ均＜０．０５）；Ｃ组ＴＮＦ和ＭＤＡ升高程度均远低于Ｂ组（Ｐ均＜０．０５），ＳＯＤ活性保持稳定（Ｐ均＞０．０５）；实验７小时Ａ、Ｃ组各存活８只兔，而Ｂ组仅存活１只兔。结论：ＴＮＦ及自由基均参与了内毒素休克病理变化过程；复方丹参注射液能明显降低ＴＮＦ的增加幅度，减轻自由基造成的脂质过氧化作用，并能对抗内毒素休克时ＳＯＤ活性降低现象，使实验兔的７小时存活数显著提高     

Representativity of regional to total bone mineral in healthy subjects and 'anticonvulsive treated' epileptic patients. Measurements by single and dual photon absorptiometry

Dual photon (153Gd) and single photon (125I) absorptiometry were used to measure the regional bone mineral content (BMC) and density (BMD), as well as the total body mineral content (TBBM) and density (TBBD), in sixty-nine healthy subjects and in twenty-three epileptics on phenobarbitone. The BMCs (and BMDs) of all regions were significantly correlated to each other and to the TBBM (and TBBD). No difference in the ability to discriminate between the different study groups was found for the various regions, excepting the BMD of the head. The relationship between the forearm BMC and TBBM was highly significant, and identical in the five groups. The relationships between spinal BMC and forearm BMC, and TBBM differed in the five groups. It is concluded that some local measurement may be used as estimates of the total body bone mineral in some groups of patients with minor metabolic bone disease and healthy subjects.     

Bone mass of the axial and the appendicular skeleton in women with Colles' fracture: its relation to physical activity

Summary. The aim of this investigation was to elucidate whether Colles' fractures in middle-aged women were indicative of generalized bone loss (osteopenia) and whether bone mass of the axial and the appendicular skeleton was related to the extent of daily physical activity. Thirty-six patients (aged 50–73 years) with previous Colles' fracture were studied. The median time elapse after the injury was 18 months (range 9–20·5 months). Bone mineral content of the 2nd, 3rd, and 4th lumbar vertebrae (lumbar BMC) and both distal forearms (forearm BMC) were determined by dual-photon (¹⁵³Gd) absorptiometry. The physical activity level was graded according to a standard interview and a bicycle ergo meter test. Mean lumbar BMC was reduced by 9% compared to age-matched normal women (P < 0·05), mean forearm BMC was reduced by 5% (NS). Twenty patients showed spinal osteopenia by either conventional radiography or absorptiometry (95% confidence limits 38–72%). The fracture-related bone loss from the forearms was most prominent when the fracture had occurred in the dominant forearm, suggesting that the loss of ‘dominant’ forearm activity per se results in bone loss. No relation between working capacity and forearm BMC was found. However, the working capacity was positively related to lumbar BMC (P < 0·01), even if the common relationship to age was eliminated (P < 0·05). The data suggest that the bone mass of the axial skeleton reflects the extent of daily physical activity. Patients with Colles' fractures represent an easily definable population which might benefit from prophylactic measures against vertebral bone loss and compression fractures. One of these could be physical exercise.     

青少年强直性脊柱炎早期腰椎骨密度变化多因素分析

目的研究青少年强直性脊柱炎(ankylosingspondylitis,AS)早期年龄、身高、体质量、体质量指数(BMI)与L1-4骨矿含量(L1-4BMC)、L1-4面积骨密度(L1-4BMD)、L1-4体积表观骨密度(L1-4BMAD)之间的相关性,旨在初步探讨青少年AS早期骨量、骨密度研究的相关因素和评价指标。方法选择男性青少年强直性脊柱炎早期病例31例,获得年龄、身高、体质量、BMI,应用双能X线骨密度仪(DEXA)检测L1-4BMC,L1-4BMD,并计算L1-4BMAD;采用相关和回归分析研究多因素相关性。结果相关和回归分析表明,身高(P=0.000)和BMI(P=0.009)因素进入L1-4BMC回归方程(R=0.759,Radj2=0.545,P=0.000<0.01),其中身高是L1-4BMC回归方程的关键因素(R=0.676,Radj2=0.439,P=0.000)。另外,年龄、身高、体质量和BMI4因素中只有体质量因素被纳入L1-4BMD回归方程(R=0.657,Radj2=0.412,P=0.000)和L1-4BMAD回归方程(R=0.551,Radj2=0.280,P=0.001)。身高和BMI与L1-4BMC显著正相关,体质量则与L1-4BMD和L1-4BMAD呈显著正相关。结论身高和体质量因素即成为青少年AS早期骨矿含量和骨密度的重要相关因素。     

运动对绝经后女性骨密度的影响

目的：观察运动对绝经后女性骨密度的影响。方法：绝经后女性106名分为运动组37例和对照组69例。运动组进行广场舞、爬山、慢跑等运动干预,对照组未进行任何干预。采用双能X线吸收仪测试其全身及各部位骨矿含量（BMC）和骨密度（BMD）,并进行比较。结果：运动干预8个月后,运动组全身BMD和BMC值均较干预前及对照组明显增加（P＜0．05）,而对照组全身BMD和BMC值均较8个月前下降,但差异无统计学意义。运动组胸椎的BMD、BMC和盆骨的BMC均较干预前及对照组明显增加（P＜0．05）,而腰椎的BMD、BMC和盆骨的BMD干预后差异无统计学意义;对照组干预后腰椎、盆骨的BMD、BMC均较8个月前明显下降（P＜0．05）,而胸椎的BMD、BMC 8个月前后差异无统计学意义。运动组上肢优势侧BMD、BMC和下肢双侧BMD、BMC均较干预前及对照组明显增加（ P＜0．05）,而上肢非优势侧BMD、BMC干预前后差异无统计学意义;对照组上肢非优势侧BMD、BMC均较8个月前及上肢优势侧BMD明显下降（P＜0．05）,而上肢优势侧BMC和下肢双侧BMD、BMC 8个月前后差异无统计学意义。结论：常规运动可显著提高绝经后女性胸椎 BM D和BM C ,而只能维持其腰椎和盆骨的BM D、BM C;上下肢、优势侧与非优势侧活动不均衡可影响相关部位 BM D和BM C的变化。     

Reproducibility of dual-energy X-ray absorptiometry in the upper extremities in stroke patients

Bone mineral loss after stroke in affected extremities can increase the prevalence of fractures that interrupt the rehabilitation programme and lower the level of activity. In stroke rehabilitation, precise bone mineral measurement is needed in order to assess the risk of fractures. We defined five regions-of-interest of the upper extremity (proximal humerus, distal forearm, distal radius, distal ulna and hand) consistently, so that the position was comfortable for hemiplegic patients to maintain during the measurement. The aim of this study was to determine whether our method using dual-energy X-ray absorptiometry is useful in hemiplegic patients. Ten normal subjects and 15 hemiplegic patients were studied. In normal subjects the reproducibility of our method was evaluated by repeated measurements of both the right and left sides. In hemiplegic patients the reproducibility was evaluated by repeated measurements of the affected side. The coefficient of variation (CV) values were obtained for BMD (0.7–1.7%) and BMC (0.7–2.3%) in normal subjects, and BMD (1.3–2.1%) and BMC (1.7–5.4%) in hemiplegic patients. The CV for the side-to-side BMD and BMC ratios in the normal subjects ranged from 11% to 2.2% and from 1.8% to 31%, respectively. Our study shows that the reproducibility of our method is sufficient for application to hemiplegic patients.     

绝经妇女身体软组织重量与骨密度的相关性

目的 :探讨绝经后妇女身体软组织重量和骨密度 (BMD)之间的关系。方法 :选择 6 2例绝经期健康日本妇女 ,应用双能X 线法 (Dexa)测定其第 2～ 4腰椎、双侧股骨转子间和桡骨中、下 1/ 3交界处BMD ,同时测定身体肌肉组织 (TLM)和脂肪组织 (TFM )重量 ,并对软组织重量与身体各部位的BMD进行相关性分析。结果 :全身TLM重量及体重与正位腰椎BMD呈正相关 (r =0 .4 5及 0 .35 ) ,而TFM百分比与腰椎、股骨转子间和桡骨远端BMD呈负相关 (r=- 0 .17)。随着年龄增长 ,BMD呈下降趋势 ,6 0岁组与 5 0及 70岁组比较差异有显著性 (分别P <0 .0 1,P <0 .0 5 )。结论 :身体内软组织重量中TLM重量、体重与全身各部位的BMD有相关性 ,其中体重和TLM重量与腰椎BMD的相关性较好 ,TFM重量与BMD的相关性不明显。     

Changes in calcanean bone mineral occurring spontaneously and during hormone replacement therapy in early post-menopausal women.

The spontaneous calcanean bone loss occurring in healthy early post-menopausal women and the effect of two hormone replacement therapies (HRT's) were investigated in a longitudinal study. There was no difference between the right and left calcanean BMC or BMD (p > 0.15). The spontaneous bone loss was similar at all the skeletal sites measured, with a mean spontaneous loss in calcanean BMD of 1.6% over one year. Both HRT's significantly (p < 0.01) prevented the bone loss from all skeletal sites irrespective of the weight-bearing or content of trabecular bone, and (for the weight-bearing bones) there was even a gain in calcanean BMC and BMD and spinal BMD (p < 0.01). Bone mineral of the calcaneus and the spine correlated equally to body weight (r approximately 0.4, p < 0.001), whereas bone mineral in the forearm was not correlated to body weight. The correlations between the changes in bone mineral at the sites measured were all significant (r approximately 0.2-0.4).     

Bone mass of spine and forearm in osteoporosis and in German normals: influences of sex, age and anthropometric parameters

We measured forearm bone mineral density (BMD) using single photon absorptiometry (SPA) and bone mineral content (BMC) and BMD of lumbar spine by dual photon absorptiometry (DPA). The population consisted of 463 bone healthy subjects, 346 females and 117 males aged 20-85 years. Any underlying bone disease or other diseases known to affect bone mass were excluded by physical examination, thoracic and lumbar radiographs and laboratory screening. Patients with osteoarthritis of lumbar spine were excluded as well as patients taking drugs known to affect bone mass. All bone mass values declined with age. Body height also declined with age by 1.2 cm and 1.8 cm per 10 years (-0.7% and -1%) in females and males respectively. Main effects of age, body height, -surface, -weight and -mass index on bone mass were calculated using multiple regression models. In males and females lumbar BMC measured in gHA depended primarily on body height and secondarily on age. Spinal BMD as measured in g cm-2 was primarily dependent on age and then on height. In females forearm BMD depended primarily on age and then on body surface, in males on body surface only. Using receiver operating characteristic (ROC) analysis the ROC area increased from 0.81-0.85 (n.s.) including body height into spinal BMD values leading to a higher sensitivity of measurements of spinal bone mass in recognizing 58 patients with spinal postmenopausal osteoporosis. Including body surface into forearm BMD measurements ROC area increased from 0.66-0.69 (P = 0.055).(ABSTRACT TRUNCATED AT 250 WORDS)     

Lumbar bone mineral content and density measured using a Lunar DPX densitometer in healthy full-term infants during the first year of life

This cross-sectional study provides values for lumbar spine bone mineral content (BMC) and density (BMD) in 41 healthy full-term born Finnish infants, 19 boys and 22 girls, during the first year of life measured by dual energy X-ray absorptiometry (DXA) using the Lunar DPX densitometer. Lumbar BMC correlated with the weight (r=0.733; P=0.000), length (r=0.677; P=0.000), standardized length (r=0.315; r=0.045) and age at examination (r=0.314; P=0.045), and with the bone area (r=0.736; P=0.000). Infants with < or =-1 SD scores for lengths at examination had significantly lower BMC values [mean (SD); 1.79 (0.66) g] than infants with SD scores above -1 SD [2.27 (0.46) g] (P=0.011). Exclusive breast feeding did not correlate with the lumbar BMC values (r=-0.039; P=0.811). No differences were found in lumbar spine BMC (P=0.097), BMD (P=0.254) and bone area (P=0.094) values between boys and girls. In order to determine the predictive value of the anthropometric measurements on lumbar BMC, stepwise multiple regression analysis were performed, bone area and present weight were the only independent variables which explained 67.6% of the variance in the BMC values. The present cross-sectional data imply that, in healthy term infants, patterns of relative linear growth during the first year of life are related to the lumbar BMC values. In future, careful longitudinal measurements of linear growth are needed to study connections between growth patterns and bone mineral status in infancy.     

老年男性骨关节炎骨密度变化相关研究

目的探讨老年男性骨关节炎（osteoarthritis,OA）患者骨密度（Bone mineral density,BMD）变化相关因素。方法选择老年男性膝骨关节炎（Knee osteoarthritis,KOA）患者72例（男性组）、老年女性KOA患者60例（女性组）,检测两组的BMD及男性组生活方式情况、血生化指标、骨代谢指标、双膝数值化X射线、KOA WOMAC（Western Ontario and McMaster Uni-versities）评分等临床资料,应用SPSS 13.0软件包进行统计学分析。结果①男性组BMD高于女性组（P=0.002）,骨量变少率低于女性组（P〈0.001）;②男性组腰椎、股骨颈、Wards三角、大转子、股骨干BMD差异有统计学意义（P〈0.001）,其中Wards三角BMD值最低,腰椎BMD值最高;③喝牛奶、户外运动在男性骨量正常组高于骨量变少组（P=0.031,0.002）;④骨量正常组低密度脂蛋白胆固醇（LDL-C）低于骨量减少组和骨质疏松（osteoporosis,OP）组（P〈0.05）,而碱性磷酸酶（ALP）高于骨量减少组和OP组（P〈0.01）,骨钙素（OC）高于OP组（P=0.01）;⑤老年男性KOA的BMD与体质量指数（BMI）、OC呈正相关,与年龄、LDL-C呈负相关。结论老年男性OA较老年女性OA患者更少伴发OP,老年男性OA患者喝牛奶、户外运动者更不易伴发OP,LDL-C越高、年龄越大越易患OP,老年男性OA伴发的OP主要是成骨细胞活性减低所致,属低转换型,在诊治男性OA过程中更应关注OP。