抗乙肝胎盘转移因子的特异免疫活性观察

本研究由ＨＢＶＭ－Ａｂ阳性胎盘提取的抗乙肝胎盘转移因子（ＰＳＴＦ）的特异免疫活性证明，经注射，小鼠外周血淋巴细胞明显增多，胸腺重量和指数亦显著增加，酯酶染色证明７５％属Ｔ－样淋巴细胞，２５％属Ｔｈｙ－样淋巴细胞，人白细胞或小鼠白细胞体外转移ＰＳＴＦ特异免疫活性、或豚鼠和小鼠体内转移ＰＳＴＦ特异免疫活性，再取其白细胞作白细胞粘附抑制、白细胞移动抑制、特异淋巴细胞转化、小鼠足掌注射和诱生γ－干扰素试验     

Huge gastric diospyrobezoars successfully treated by oral intake and endoscopic injection of Coca-Cola

A diospyrobezoar is a type of phytobezoar that is considered to be harder than any other types of phytobezoars. Here, we describe a new treatment modality, which effectively and easily disrupted huge gastric diospyrobezoars. A 41-year-old man with a history of diabetes mellitus was admitted with lower abdominal pain and vomiting. Upper gastrointestinal endoscopy revealed three huge, round diospyrobezoars in the stomach. He was made to drink two cans of Coca-Cola every 6 h. At endoscopy the next day, the bezoars were partially dissolved and turned to be softened. We performed direct endoscopic injection of Coca-Cola into each bezoar. At repeated endoscopy the next day, the bezoars were completely dissolved.     

A case of Non-Hodgkin's lymphoma in a patient with Crohn's disease]

Although adenocarcinoma is a well known complication of chronic inflammatory bowel disease, primary gastrointestinal lymphoma occurring in Crohn's disease is rare. A 40-year-old man with 10 year-history of Crohn's disease had multiple longitudinal ulcerative lesions on descending colon in follow-up colonoscopic examination. Microscopic examination of proximal descending colon revealed peripheral T cell lymphoma and other site of the descending colon was consistent with Crohn's disease. The patient reached complete remission of malignant lymphoma after three cycles of combined chemotherapy. He has been well for 10 months with sulfasalazine maintenance therapy but was admitted to the hospital due to spontaneous bowel perforation of ascending colon. Right hemicolectomy was done, but the patient died of post-surgical recurrent mesenteric abscess and sepsis. To the best of our knowledge, this is the first case of Non-Hodgkin's lymphoma complicating Crohn's disease in Korea which was confirmed by immunohistochemical studies.     

扶正调平汤减轻化疗毒副反应的临床观察

目的研究在化疗过程中运用扶正调平汤对减轻肿瘤患者的骨髓抑制，消化道症状等化疗副反应的作用。方法通过临床对60例手术及非手术胃癌患者随机分成两组，即治疗组和对照组，观察化疗前后两组的血象变化、消化道反应情况，及其生活质量进行评定，比较、分析。结果实验证明化疗同时配合扶正调平汤对改善化疗副反应的作用显著化于对照组（P〈0．05）。结论说明扶正调平汤对减轻化疗毒副反应方面具有较好的临床疗效。提高了患者生活质量，使惠者顺利完成化疗疗程。     

Dose escalation study of rhenium-186 hydroxyethylidene diphosphonate in patients with metastatic prostate cancer

Rhenium-186 hydroxyethylidene diphosphonate (¹⁸⁶Re-HEDP) has been used for the palliative treatment of metastatic bone pain. A phase 1 dose escalation study was performed using ¹⁸⁶Re-HEDP Twenty-four patients with hormone-resistant prostate cancer entered the study. Each patient had at least four bone metastases and adequate haematological function. Groups of at least three consecutive patients were treated with doses starting at 1295 MBq and increasing to 3515 MBq (escalated in increments of 555 MBq). Thrombocytopenia proved to be the dose-limiting toxicity, while leucopenia played a minor role. Early death occurred in one patient (10 days after administration) without clear relationship to the ¹⁸⁶Re-HEDP therapy. Transient neurological dysfunction was seen in two cases. Two patients who received 3515 MBq ¹⁸⁶Re-HEDP showed grade 3 toxicity (thrombocytes 25–50 × 10⁹/1), defined as unacceptable toxicity. After treatment alkaline phosphatase levels showed a transient decrease in all patients (mean: 26% ± 10% IUA; range: 11%–44%). Prostate-specific antigen values showed a decline in eight patients, preceded by a temporary increase in three patients. From this study we conclude that the maximally tolerated dose of ¹⁸⁶Re-HEDP is 2960 MBq. A placebo-controlled comparative study on the efficacy of ¹⁸⁶Re-HEDP has been initiated.     

Further studies on interactions between periaqueductal gray, nucleus accumbens and habenula in antinociception.

Previous findings from this laboratory with the intracerebral microinjection technique suggested that the periaqueductal gray (PAG), nucleus accumbens, and habenula might constitute a unidirectional loop to play their roles in pain modulation. In the present study we demonstrate that intra-habenular injection of naloxone antagonizes the analgesia elicited by morphine injected into the periaqueductal gray (PAG) and that intra-accumbens injection of naloxone is capable of attenuating the analgesic effects of morphine injected into the habenula. These results indicate that the relationships between these nuclei may be more complex than the putative unidirectional loop.     

几种抗癌药对HL—60细胞在小鼠肾囊膜下生长的抑制作用

以纤维蛋白凝块为HL-60细胞支持物,将其接种于正常和免疫抑制小鼠肾囊膜下,观察其增殖特性和生长特点。结果HL-60细胞纤维蛋白凝块在免疫排斥反应出现前的正常小鼠肾囊膜下,体积增殖5倍左右;在免疫抑制小鼠肾囊膜下,增殖15倍左右。组织切片发现,在肾囊膜下生长6d细胞密度明显增加,生长细胞沿肾囊膜向四周侵润,肿瘤细胞切面面积明显扩大,且生长细胞仍保持HL-60细胞的形态特点。维甲酸(RA)、维胺酸(RⅡ)及三尖杉酯碱等药物可明显抑制HL-60细胞的生长。     

Transdermal permeation-enhancing activities of some inorganic anions

Effects of sodium salts of various monovalent inorganic anions on transdermal permeation of salicylic acid were investigated. In in-vitro experiment using a Franz-type diffusion cell and excised mouse skin, the permeation-enhancing activities of the sodium salts of inorganic anions were roughly proportional to lyotropic Hofmeister swelling abilities of the anions; F^?<SO₄ ^2?<Cl^? <ClO₄ ^?<NO₃ <SCN^? <Br <I^?, i.e. l, Br and SCN increased the flux of drugs through the mouse skin, while F^?, SO₄ ^2?, Cl^?, ClO₄ ^? and NO₃ ^? decreased or did not affect the flux. In invivo experiment using the rabbit as the test animal, the plasma concentration of salicylic acid of the rabbit to which 10%-salicylic acid ointment containing 5%-Nal or NaBr was applied was significantly higher than that of the rabbit to which the ointment without the electrolytes was applied. The amounts of sterol leached out of stratum corneum sheet when the sheet was immersed in aqueous solutions of Nal, NaBr, or NaSCN were much more than that of stratum corneum immersed in aqueous solutions of the other inorganic anions. The FTIR/ATR spectroscopy showed that the peaks at 2853 cm^?1 and 2924 cm^?1 in the IR absorption spectrum of the stratum corneum sheet of the mouse were shifted to higher frequencies by the anions which enhanced the transdermal drug permeation, while not shifted by the anions which did not have any permeation-enhancing activities or have permeation-reducing activities. These results suggest that sodium salts of some anions such as iodide, bromide and thiocyanate enhance transdermal permeation of salicylic acid through swelling and perturbation of the skin structure by these anions.