A pilot study of recombinant interferon beta (IFN-βser) in patients with recurrent glioma

Recombinant interferon beta (IFN-_ser) has been administered by intravenous bolus injection three times weekly at a dose of 90 × 10⁶ IU to 14, patients with recurrent malignant glioma in an ongoing study. The treatment period has ranged from 1 to 40 weeks. The most common adverse experiences were fever, chills, malaise, and headache. Fever, chills and headache were worse with the first two doses and were usually relieved with acetaminophen. All patients tolerated subsequent treatments without any difficulties. No neurologic or hematologic toxicities were observed. Of ten evaluable patients, five had progressive disease in 4 to 8 weeks; three had stable disease for 12 to 21 weeks; one has had a minor response for 13 weeks; and one has had a complete resolution of tumor for 150 + weeks. IFN-_ser appears to have activity in human glioma and is well tolerated at this dosage and schedule.     

脑卒中复发危险因素的探讨及防治

目的：探讨复发性脑卒中的危险因素及其防治。方法：对脑卒中复发组５８例与对照组１９４例在高血压、糖尿病、高血脂、冠心病、饮酒、吸烟及脑卒中家族史等危险因素和初次发病后３年内的复发和预后情况进行对比分析。结果：复发组与对照组的危险因素是一致的（ｐ〉０．０５）,但复发组的后较对照组差（ｐ〈０．０５）。结论：防止脑卒中的复发主要是防治危险因素。     

Immunopathology of the implantation site utilizing monoclonal antibodies to natural killer cells in women with recurrent pregnancy losses

PROBLEM: Placental lesions of 71 women with documented recurrent spontaneous abortions of unknown etiology were evaluated using immunohistochemical staining. METHOD OF STUDY: Placental tissue blocks (less than 12 weeks gestation) from prior pregnancy losses were obtained, recut, and analyzed utilizing monoclonal antibody to identify the trophoblast (cytokeratin 8/18) and natural killer (NK) cells (CD57) at the implantation site. The following features were evaluated: trophoblast invasion pattern; syncytium formation; vasculitis and thromboembolism of decidual vessels; decidual inflammation; decidual necrosis; fibrin deposition at the decidual necrosis site; mononuclear-cell infiltration in villi and intervillous space; perivillous fibrin deposition; trophoblast morphology; and quantitation of CD57+ NK cells within the decidual tissue near the implantation site. Controls consisted of 20 healthy women with no history of recurrent pregnancy losses, who had their pregnancies electively terminated. RESULTS: Of the women studied, 29.6% demonstrated elevated CD57+ NK cells at the implantation site (P = 0.030), 54.1% had inadequate cytotrophoblast invasion depth (P = 0.000), 44.1% demonstrated inadequate syncytium formation (P = 0.004), and 33.9% presented thromboembolism in decidual vessels (P = 0.025). CONCLUSION: Some women with recurrent spontaneous abortions demonstrate abnormal placental lesions at the implantation site. Immunopathologic evaluation of the placental implantation site that terminated in a spontaneous abortion may reveal the immunopathogenesis of previous pregnancy losses.     

反复呼吸道感染患儿口含干扰素片后T细胞亚群与sIL-2R的变化

目的：了解口含干扰素片治疗儿童反复呼吸道感染（ＲＲＩ）的效果。方法：检测了口含干扰素和常规治疗组ＲＲＩ患儿在治疗前后Ｔ淋巴细胞亚群和血清ｓＩＬ２Ｒ水平,并与正常健康儿童对照。结果：口含干扰素片治疗后患儿ＣＤ３、ＣＤ４、ＣＤ４／ＣＤ８均显著升高,ＣＤ８水平和血清ｓＩＬ２Ｒ水平显著降低,ＣＤ４、ＣＤ８、ｓＩＬ２Ｒ水平与正常对照组相比均无明显差异,经常规治疗的患儿仅ＣＤ４、ＣＤ４／ＣＤ８显著升高,ＣＤ３、ＣＤ８水平和血清ｓＩＬ２Ｒ水平在治疗前后均无显著差异,与正常对照组相比,除ＣＤ４外其余各项指标均差异显著,且口含干扰素片治疗后患儿ＣＤ３、ＣＤ４／ＣＤ８显著高于常规治疗的患儿（Ｐ＜０．００１）,而ＣＤ８、ｓＩＬ２Ｒ水平则显著低于常规治疗组（Ｐ＜０．００１）。结论：口含干扰素片治疗后患儿的细胞免疫状态优于常规治疗的患儿。     

Interferon-β inhibits proliferation and progression through S phase of the cell cycle in five glioma cell lines

Summary The growth inhibitory effect of IFN- was evaluated in 5 human glioma cell lines (AO2V4, GJC, GJR, NN and NNR) and in normal astrocyte cultures (SC and TM). All 5 glioma cell lines showed an anti-proliferative response to IFN- whereas normal glial cells were non-responsive. IFN- at 10, 100 and 500 U/ml lead to a 30%,70% and 80% relative decrease in cell number after 12 days, respectively in AO2V4 cells. GJC and GJR cell lines also responded significantly to the lowest concentration of IFN- tested and at 500 U/ml the relative cell number decreased 55%. The NN and NNR cells were the least responsive to IFN- with maximum growth inhibition of 30% at 500 U IFN-/ml. Following treatment with IFN-, AO2V4, GJC, GJR and normal astrocytes all expressed mRNA encoding the anti-viral protein, 2-5A synthetase demonstrating that IFN- bound to receptors on all four cell lines and activated signal transduction pathways required for induction of an anti-viral protein. A determination of the relative number of viable cells showed that none of these cells exhibited a significant decrease in cell viability. Since the antiproliferative response to IFN- was not primarily due to cell death, the effect of IFN- on cell cycle progression was evaluated by flow cytometry. All treated glioma cell lines showed a relative increase in proportion of cells in S phase. AO2V4 cells had a 50%–80% increase in the percentage of cells in S phase, whereas GJC, GJR and NNR had percentage increases of 20%–40%. IFN- treatment of normal astrocytes did not significantly alter their cell cycle profile. These data suggest that IFN- exerts its antiproliferative effect on glioma cells by arresting the ordered progression through S phase or decreasing entry into G₂/M phase of the cell cycle.     

Surgical management of recurring or metastatic thyroid cancer

The surgical oncologist is sometimes confronted with a patient who was surgically treated for cancer of the thyroid gland and now has recurrent disease. In most instances, additional surgical treatment is indicated. The magnitude of surgery is primarily determined by the amount of tissue removed at the original operation. Surgery for recurrent disease may include completion of total thyroidectomy with dissection of lymphatic tissues in the thyroid compartment or/and neck dissection, preferably modified. Several clinical situations are outlined and discussed.     

Lithium carbonate in prophylaxis of reappearing catatonic stupor: case report

The case of a patient with reappearing stupor, accompanied by auditory hallucinations and persecutory ideas during the periods and not with alternating excitement, is reported. After 24 years of neuroleptics medication with little effect, the lithium carbonate regimen was started, which showed a remarkable prophylactic effect. The implications of lithium carbonate treatment for recurrent psychosis are discussed.     

复发性卵巢恶性肿瘤的临床分析

目的探讨卵巢癌复发的可能相关因素及治疗方法.方法卵巢癌患者101例,分为复发组36例及对照组65例,比较两组患者孕产史、肿瘤及妇科肿瘤家族史、腹水细胞学阳性率及手术时淋巴结清扫有无显著性差异.结果复发组与对照组平均妊娠次数、生育次数及手术时淋巴结清扫等两组比较差异无显著性;而两组比较妇科肿瘤家族史16.7%(6/36)和4.6%(3/65)P<0.05;两组Ⅰ～Ⅱ期患者腹水细胞学阳性率80.0%(4/5)和26.3%(5/19),P<0.01,两组比较差异有显著性.结论卵巢癌患者的妇科肿瘤家族史及腹水细胞学阳性率与卵巢癌的复发有一定的相关性,而手术范围是否包括淋巴结清扫与肿瘤复发无关.     

自体角膜缘移植术治疗复发性翼状胬肉疗效观察

目的　观察自体角膜缘移植术治疗复发性翼状胬肉的疗效。方法　对 10例 (10眼 )复发性翼状胬肉患者施行患眼健侧带结膜的自体角膜缘移植术。结果　随访 6～ 12个月 ,10例患者角膜移植片均透明光滑 ,愈合良好 ,无一例复发。结论　自体角膜缘移植术治疗复发性翼状胬肉有效、安全、简便。     

复发鼻咽癌三维适形放射治疗的计划与剂量的优化

目的：通过对鼻咽癌放疗后不同复发部位治疗计划的优化及剂量分析初步探讨三维适形放射治疗应用于复发鼻咽癌的可行性。方法：分别作复发于茎突后区、海绵窦及大病灶复发的三维适形放射治疗计划，比较不同计划在靶区剂量覆盖及正常组织保护方面的差异。结果：三维适形放射治疗使靶区剂量明显提高。复发于茎突后区、海绵窦、大病灶复发的计划，脑干、脊髓等正常组织都能够在耐受量范围之内。结论：三维适形放射治疗复发鼻咽癌，①对不累及颅底或离重要器官尚有少许距离的病灶能够在很好保护正常组织的前提下明显提高肿瘤靶区的剂量。②对累及颅底、海绵窦、颅内病灶也能有很好的肿瘤靶区剂量分布，但建议采用常规分割，靶区体积不宜过大。