抗心律失常新药关附甲素血浆浓度测定的方法

抗心律失常新药关附甲素(Guan—fu base A)与三氟醋酐反应,迅速定量地生成双-三氟乙酸酯衍生物,其结构经GC-MSD的分析得到证实。关附甲素衍生物经气相色谱分离后,在电子捕获检测器上有较高的响应,线性范围宽(10～2.0×10⁴ng/ml,r=0.9984)。血中平均回收率为97.52%。本法以烯丙洛尔(alprenolol)为内标,定量准确,日内及日间差的变异系数分别小于7%和9%,并已成功地用于关附甲素临床前的药代动力学研究。     

Early stimulation: psychomotor development of two girls with Aicardi syndrome

The psychomotor development achieved by two girls with the Aicardi syndrome is described. Until now this syndrome has been considered to produce a total dissociation from the environment in those affected. The results of early intervention, although not spectacular, are sufficient to recommend early stimulation in these children.     

Five‐year experience in the treatment of alopecia areata with DPC

Background The effectiveness of Diphencyprone (DPC) in alopecia areata (AA) was demonstrated in several studies with highly variable response rates ranging from 5% to 85%. Objective The response rate and variable factors affecting the prognosis were studied focusing on long‐term follow‐up with or without maintenance therapy. Methods A total of 135 cases of AA were treated with DPC. Patients were divided into five groups according to the area of scalp affected: Grade 1 AA: 25–49% scalp affection; Grade 2 AA: 50–74% scalp affection; Grade 3 AA: 75–99% scalp affection; alopecia totalis and alopecia universalis. An initial response was defined as appearance of new terminal hair within treated sites. Excellent response was defined as terminal hair covering >75% of the scalp. Relapse meant >25% hair loss. Maintenance therapy meant ongoing therapy once every 1–4 weeks after excellent response. Follow‐up was performed to detect any relapse of AA. Results Ninety‐seven patients continued therapy for ≥3 months. After an initial 3 month lag, cumulative excellent response was seen in 15 patients (15.4%), 47 patients (48.5%), 51 patients (52.6%) and 55 patients (55.7%) after 6, 12, 18 and 24 months respectively in a mean median time of 12 months. The only patient variable affecting the prognosis was baseline extent of AA. Excellent response was seen in 100%, 77%, 54%, 50% and 41% in Grade 1, Grade 2, Grade 3, AA totalis and AA universalis patients respectively. Side‐effects were few and tolerable. Hair fall >25% occurred in 17.9% of patients on maintenance and 57.1% of patients without maintenance therapy (P‐value = 0.025). Conclusion Diphencyprone is an effective and safe treatment of extensive AA. A long period of therapy is needed and will increase the percentage of responders especially in alopecia totalis and universalis. Maintenance therapy is recommended to reduce the risk of relapse.