生物活性陶瓷与细胞外基质骨形成对Ca、P、ALP影响

目的：通过钙(Ca)、磷(P)及碱性磷酸酶(ALP)评价，探讨生物活性陶瓷及细胞外基质与骨细胞相互作用机理，为骨替代材料成骨效应提供依据。方法：选用多种材料进行蒸馏水及血浆接触，体外成骨细胞培养及体内骨诱导试验。采用原子吸收，钼蓝比色及速率法分析化学性能，血浆、细胞冻溶液及组织匀浆中Ca、P、ALP的变化规律。结果：材料组体内、外接触Ca、P、ALP值高于对照组。细胞外基质复合材料组高于相应的非复合材料组。TGF-β1加材料高于BMP复合材料组，而不同材料有所不同，TCP材料高于其它材料。结论：生物活性陶瓷材料均有不同程度的Ca、P离子释放，细胞外基质及Ca、P离子可提高成骨细胞活性，异位骨形成及ALP活性。     

金石穿胶囊急性毒性试验

对金石穿胶囊进行动物急性毒性试验。结果表明：经灌胃给药小鼠的最大耐受量倍数为１２４．８，超过人口服用量的１００倍。提示临床应用本品是安全可靠的     

Teaching adolescents with severe disabilities to use the public telephone

Two adolescents with severe disabilities served as participants in a study conducted to train in the use of the public telephone to call home. Participants were trained to complete a 17-step task analysis using a training package which consisted of total task presentation in conjunction with a four-level prompting procedure (i.e., independent, verbal, verbal + gesture, verbal + guidance). All instruction took place in a public setting (e.g., a shopping mall) with generalization probes taken in two alternative settings (e.g., a movie theater and a convenience store). A multiple probe across individuals design demonstrated the training package was successful in teaching participants to use the telephone to call home. In addition, newly acquired skills generalized to the two untrained settings. Implications for community-based training are discussed.     

离子对高效液相色谱法测定抗癌药盐酸米托蒽醌注射液含量

作者用离子对高效液相色谱法测定盐酸米托蒽醌注射液含量。采用Zorbax-ODS柱,甲醇-水-甲酸(450:50:1.5)为流动相,调pH为2.7,加十二烷基硫酸钠为离子对试剂,以Ametantrone为内标,在254nm波长检测,米托蒽醌检测限为1ng(R:N=3:1),在1～10μg范围标准曲线呈线性(r=0.9992),平均回收率为99.62±2.36％(n=10)。注射液中其他组分不干扰测定。     

Congenital micrognathia and partial adactylia.

A case of micrognathia and partial adactylia is presented. Several syndromes that can be classified under the term oral-mandibular-limb dysgenesis are discussed, as well as a report of a patient with malformations corresponding closely to the malformations seen in our patient. Genetic and environmental causes of micrognathia are discussed in conjunction with the various theories of the mechanism of congential oral deformities. Finally, a surgical approach to the correction of micrognathia is presented with postoperative results.     

Alternative to mental hospital treatment. II. Economic benefit-cost analysis

A cost-benefit analysis should be seen not as a mechanism for deciding mechanically on the allocation of funds and resources among programs but as a structure for weighing advantages and disadvantages (that is, for organizing knowledge). Considering all the forms of benefits and costs that we were able to derive in monetary terms, the experimental program provided both additional benefits and additional costs as compared with the conventional treatment. However, the added benefits, some +1,200 per patient per year, are nearly +400 more per patient per year than the added costs. A number of the forms of benefits and costs that we have measured in quantitative but nonmonetary terms show additional advantages of the community-based experimental program. The generalizability of a single experiment is limited, but the methodologies developed may be useful if their proper role is appreciated.     

北豆根胶囊中蝙蝠葛碱和蝙蝠葛苏林碱的定量分析

目的：建立北豆根胶囊中蝙蝠葛碱和蝙蝠葛苏林碱的定量分析方法。方法：采用高效液相色谱法测定北豆根胶囊中蝙蝠葛碱和蝙蝠葛苏林碱的含量并制定含量限度要求。高效液相色谱条件：以十八烷基硅烷键合硅胶为填充剂;以乙腈-0．05％三乙胺溶液（45：55）为流动相;检测波长为284nm。结果：北豆根胶囊中蝙蝠葛碱和蝙蝠葛苏林碱线性范围依次为0．2314～2．314ug（r=0．9999）,0．116～1．16ug（r=0．9999）;平均回收率（n=6）依次为104．9％（RSD=1．9％）,101．7％（RSD=1．4％）;北豆根胶囊中蝙蝠葛碱和蝙蝠葛苏林碱的总量应不低于22．0mg／pergranule。结论：本方法操作简便,结果准确,提高了北豆根胶囊的质量控制标准,为其临床用药的安全性和有效性提供了质量保证。     

牛磺酸拮抗氯化镉致肝细胞氧化损伤的保护作用

目的观察牛磺酸拮抗氯化镉致大鼠肝细胞氧化损伤的保护作用。方法实验分5组:①阴性对照组;②氯化镉组:分别加入终浓度为10、20、40、100μmol/L的氯化镉;③同时处理组:终浓度为100 mmol/L的牛磺酸与氯化镉10、20、40、100μmol/L同时加入;④后处理组:先加入终浓度为10、20、40、100μmol/L的氯化镉,45min后加入100 mmol/L的牛磺酸;⑤预处理组:先加入终浓度为100 mmol/L的牛磺酸,45 min后加入10、20、40、100μmol/L的氯化镉。所有的处理组均培养2 h。结果①肝细胞中10、20、40、100μmol/L的氯化镉组GSH-Px酶活性明显低于阴性对照组;随着镉浓度增加,GSH-Px酶活性下降呈一定的剂量-效应关系。②预先处理组(65.26±14μmol/L)及同时处理组(49.65±1.54μmol/L)细胞GSH-Px酶活性明显升高,与相应的氯化镉组(27.11±1.09μmol/L)比较有显著性差异(P<0.05)。③当后处理组镉浓度达到40～100μmol/L时,细胞内SOD活性显著降低(23.08±1.49 U/ml),与相应的氯化镉组...     

The Complexity of Characteristics,Diagnoses and Treatment of Older Patients With Pulmonary Hypertension

Background

Older patients with pulmonary hypertension (PH) are more likely to have complex comorbidity than younger patients with pulmonary arterial hypertension (PAH). The best approach to the evaluation and management of these patients is unclear.