碱性成纤维细胞生长因子（bFGF）加速猪背部创伤修复的实验研究

实验采用猪背部创伤模型，观察重组的碱性成纤维细胞生长因子（ｂＦＧＦ）对创伤修复的作用。在无菌条件下用特制打孔器在猪背部切割皮肤，形成２．５ｃｍ２的园型创面。将１５０个创面分成５组，分别以ｂＦＧＦ（６０ｕ／ｃｍ２创面），ｂＦＧＦ（（６０ｕ／ｃｍ２创面）加ＳＤ－Ａｇ、ＳＤ－Ａｇ、生理盐水以及不治疗等方法处理，每间隔一天换药一次。实验结果表明，ｂＦＧＦ具有显著促进肉芽组织生长、加速创面再上皮化率以及增加创面愈合组织抗张力强度等作用。ＦＧＦ显著促修复效应的确切机制尚不完全清楚，可能包括直接与间接效应两方面。     

Effect of pindolol on endocrine and temperature responses to buspirone in healthy volunteers

Ten healthy subjects received buspirone (30 mg orally) with and without pre-treatment with the 5-HT1A receptor antagonist, pindolol (80 mg over 3 days). Following pindolol treatment the growth hormone and hypothermic responses to buspirone were significantly decreased. There was also a delay in the onset of the prolactin response to buspirone but the total amount of prolactin secretion, calculated as area under the curve, was not significantly reduced. The data suggest that the growth hormone and hypothermic responses to buspirone in humans are mediated by 5-HT1A receptors, but an explanation founded on pharmacokinetic factors cannot presently be excluded. Both this latter possibility and the lack of selectivity of pindolol for 5-HT receptors indicate the need for the further neuroendocrine studies of the mode of action of buspirone, preferably with more selective 5-HT1A receptor antagonists.     

Carbohydrate metabolism in children receiving growth hormone for 5 years

Carbohydrate metabolism was evaluated by fasting and postprandial glucose, insulin, and hemoglobin (Hb)A_1c levels in children with chronic renal insufficiency and various other growth disorders treated with growth hormone. Mean fasting and postprandial glucose remained unchanged throughout the 5-year study period in all four study groups. Median fasting insulin levels rose from lownormal levels into the normal range after 5 years of growth hormone. Average fasting insulin level after 5 years was 10 mU/l. Median postprandial insulin values also rose, yet remained within the normal range at the 5-year mark. Mean Hb A_1c levels remained within low to middle end of the normal range in the patients with growth hormone deficiency, Turner syndrome, and idiopathic short stature. Mean Hb A_1c levels at the 5 years were slightly elevated to 6.3% for the patients with chronic renal insufficiency.     

二十二碳六烯酸对神经细胞生长发育的影响

目的：观察二十二碳六烯酸（DHA）对神经细胞生长发育的影响。方法：将无血清培养的新生大鼠大脑神经细胞分为实验组和对照组，实验组加入0.33mol/L乳化DHA 40μl。对两组细胞进行形态学观察及蛋白质含量测定。结果：实验组大脑神经细胞的突起生长速度、胞体面积和直径、神经细胞存活率及蛋白质含量均显著高于对照组。结论：DHA对神经细胞的生长有促进作用，这一作用可能与促进神经细胞蛋白质合成有关。     

Capillary hemangioblastoma: histogenesis of stromal cells

Summary The histogenesis of stromal cells in capillary hemangioblastoma has been the subject of debate. The light and electron microscopic studies of hemangioblastomas presented here showed pericytic and leiomyoblastic features in stromal cells. Cells cultured by the monolayer method showed similar features to those of the original tumors. Immunohistochemical studies for glial fibrillary acidic protein and factor VIII/von Willebrand factor indicated that stromal cells were antigenically distinct from astrocytes and endothelial cells. These findings suggest that stromal cells are closely related to pericytes and smooth muscle cells, and support Rhodin's speculation that pericytes serve as a precursor to smooth muscle cells.     

颅盖畸形形成机制的研究进展

目的为深入了解颅盖畸形目前在国内外研究中的进展情况,探讨颅缝早闭过程中相关生长因子的作用,为今后的研究工作奠定基础。方法应用计算机检索PubMed数据库,检索英文相关文章,同时检索中国期刊全文数据库的相关中文文章,并查阅相关书籍。对资料进行初审,并查看文献后的引文。纳入与颅盖畸形形成机制有关的内容,排除不相关及重复文章。结果经对收集文章的整理,共纳入23篇文献。对纳入的颅盖畸形形成机制的文献,结合目前国内外研究状况进行综述。结论进一步研究颅缝过早闭合及相关生长因子的作用,将有助于阐明颅盖畸形形成机制,并更好地指导临床治疗。     

急性肾功能衰竭的治疗进展

目的：探讨急性肾功能衰竭的治疗。方法：复习有关急性肾功能衰竭的治疗文献，作一总结。结果：使用人工合成三肽序列（RGD）的多肽、生长因子、心房利钠因子和人工肾小管治疗急性肾功能衰竭都取得了较好的疗效。结论：这些新的治疗可望改善急性肾衰的预后和降低死亡率。     

Significance of corrective growth of opposite physes in the surgical correction of deformity following epiphyseal injury around the knee joint

Deformation due to growth disturbance after epiphyseal fractures around the knee may involve more than the primarily injured epiphysis, as spontaneous corrective growth of the opposite epiphyseal plate can take place in an attempt to maintain overall alignment of the leg. As a result, there will be an inclination in the knee joint line if corrective osteotomy is only performed for the primary angulation. We report two cases of this complex deformity in which corrective osteotomies of both the distal femur and the proximal tibia were performed, resulting in correct alignment of the overall leg axis and knee joint axis. Received: 25 May 1996 Accepted: 20 November 1996     

高压氧对家兔面神经撞击伤后面神经核内生长相关蛋白变化的影响(论著)

目的：研究面神经撞击伤后面神经核内生长相关蛋白（ＧＡＰ－４３）的变化及高压氧（ＨＢＯ）治疗的影响。方法：利用ＢＩＭ－Ⅱ型生物撞击机致家兔右侧面神经干损伤，应用ＳＰ免疫组化染色法观察损伤后１、３、７、１４和２１天（分别用ＨＢＯ治疗及不用ＨＢＯ为对照）面神经核内ＧＡＰ－４３的变化，并用电镜观察面神经干超微结构变化。结果：面神经损伤第１天，伤侧面神经核区ＧＡＰ－４３样免疫反应性神经元（ＧＬＩＮ）开始增多，第１４天其增多达到高峰，第２１天逐渐下降。ＨＢＯ治疗组伤后不同时期ＧＬＩＮ的增多明显高于对照组。伤后第２１天，与对照组相比ＨＢＯ组面神经干电镜观察可见较多的新生髓鞘。结论：ＨＢＯ治疗可使伤后面神经核内ＧＬＩＮ增多，因而有助于面神经损伤后的修复与再生。     

Comparison of FK-506 and cyclosporine regimens in pediatric renal transplantation

Clinical aspects of FK-506 or cyclosporine immunosuppression regimens were evaluated in 48 consecutive pediatric renal transplant recipients. Tapering and discontinuation of prednisone was employed only in children receiving FK-506 who experienced minor or no rejection episodes during the 1st posttransplant month. At 1 year follow-up, 17 of 22 (77%) of all children with functioning allografts were receiving no prednisone (n=13) or a mean dosage of 0.07 mg/kg per day (n=4). During the 1st month, acute cellular rejection was more common in the FK-506 group (0.58 vs. 0.21 rejections per patient,P<0.05) but allograft survival (92%) and renal function at 1 year posttransplant were identical in both groups. Compared with the cyclosporine regimen, FK-506 immunosuppression may be associated with a higher incidence of cytomegalovirus or reversible Epstein-Barr virus-induced lymphoproliferative disease. However, the FK-506 group had less hirsutism and gingival hypertrophy and required fewer antihypertensive medications independent of steroid use. Height standard deviation scores and weight-for-height index improved only in preadolescents receiving FK-506 but no prednisone (P<0.02 andP<0.05, respectively), but did not differ between children on FK-506 plus prednisone and those in the cyclosporine group. We conclude that the major advantages of FK-506 over cyclosporine immunosuppression are a reduced severity of hypertension and an improved cosmetic appearance which may improve long-term medical compliance. When used as monotherapy, FK-506 also shows promise in relieving the growth retardation associated with cyclosporine regimens that include prednisone.