COMPARATIVE STUDY OF AMINO ACID CONTENTS AND LDH ISOZYME BY ELECTROPHORESIS AND SLAB-PAGE IN ADULT WORMS OF ASCARIS LUMBRICOIDES, ASCARIS SUUM AND TOXOCARA CANIS^

Comparative studies are made on the relative percentages of amino acid content and LDH isozyme by electrophoresis and Slab-PAGE in adult worms of Ascaris lumbricoides, Ascaris suum and Toxocara canis. The results show that there are remarkable differences of Arg and His of 17 amino acids bet. ween Toxocara canis and human intestinal ascaris, human biliary ascaris and pig ascaris; there are also obvious differences of band positions of LDH isozyme electrophoretic patterns and band position and amount of slab-PAGE patterns among them, whereas no marked differences are found in these three indices in human intestinal ascaris, human biliary ascaris and pig ascaris.     

Experimental study on the immunosuppressive effects of gui zhi tang

In this paper the immunosuppressive effects of Gui Zhi Tang (a famous Chinese medicine) on the murine immune functions are reported. Varying dosages of Gui Zhi Tang administrated orally, i.p. and i.m. were able to inhibit the amounts of PFC, SRFC and the DTH response induced by BSA and the proliferation response of murine spleen cells to Con A and LPS. Further studies showed that Gui Zhi Tang had the inhibitory effect on Interleukin-2 production of murine spleen cells, which might be one of the mechanisms leading to the immunosuppressive effects of Gui Zhi Tang.     

腹腔镜胆囊切除术前超声内镜检查胆总管必要性的探讨

目的 探讨腹腔镜胆囊切除（laparoscopic cholecystectomy,LC）术前超声内镜（endoscopic ultrasonography,EUS）检查胆总管的临床价值。方法 对25例术前经腹超声检查诊断胆囊结石,胆总管内径〉0.7 cm可疑胆总管梗阻的患者进行EUS检查,并与手术结果或内镜十二指肠乳头切开术（endoscopic sphincterotomy,EST）取石结果进行比较。结果 EUS对于胆总管病变诊断的敏感性、准确性和阴性预测值[100%（17/17）、92%（23/25）、100%（6/6）]均优于经腹超声[35%（6/17）、56%（14/25）、42%（8/19）]（P=0.000,0.008,0.020）。结论EUS对胆总管病变诊断优于经腹超声检查,可作为术前常规检查,特别是当胆总管内径〉1.0 cm时,EUS应作为术前必检项目。     

Atrophic dermatofibroma accompanied by aneurysmatic characteristics

A 40-year-old man presented a painful haemorrhagic plaque on his chest in the same location where a nodular lesion had been presented for many years. After 2 months, the plaque was replaced by a depressed lesion. The lesion diagnosed as an anetoderma was excised and the biopsy showed an atrophic dermatofibroma accompanied by aneurysmatic characteristics.