带蚓状肌的游离足趾再造拇、手指

自１９７２年以来，在游离足趾再造拇、手指手术中，应用足趾蚓状肌与缺损拇、手指蚓状肌残端或关节囊进行缝合的方法共完成手术３００例，由于再造拇、手指的蚓状肌得到修复，既改善了其指间关节屈曲畸形，又防止了掌指关节的过伸。术后随访１－２２年，再造拇、手指的外形及功能均满意。     

MRI诊断腰椎间盘术后粘连和突出复发

失败的下腰椎手术是个复杂的问题，由于其症状和体征不典型，单靠临床检查很难明确诊断，而脊髓造影和常规ＣＴ等检查也很难区别突出复发和硬膜外粘连。本文分析了３２例再手术患者ＭＲＩ图象，并与第二次手术所见对比，发现２７例ＭＲＩ诊断准确，３例假阳性，２例因信号缺失不能明确诊断。     

Calcification and ossification of chronic encapsulated intracerebral haematoma: case report.

We report a case of calcified chronic encapsulated intracerebral haematoma (ICH) in a 29-year-old female who presented with progressive left sided weakness and intermittent seizures since childhood. The preoperative magnetic resonance (MR) imaging of the head initially suggested that a partially thrombosed aneurysm or vascular malformation was present. However, no vascular stain was found on the digital subtraction angiography (DSA) of both the carotid and vertebral arteries. The excised mass was histologically diagnosed as a chronic ICH. We traced the patient's medical history and found that at the age of one she sustained a head injury after a fall. So far, to our knowledge, no case of epilepsy secondary to a calcified chronic encapsulated ICH occurring 28 years after head injury has been reported. Calcified chronic encapsulated ICH concomitant with new bone formation within is even rarer. The possible pathogenesis of this case is discussed.     

SURGICAL TREATMENT OF GYNECOLOGIC MALIGNANCES IN PATIENTS 70 YEARS OF AGE AND OLDER

Accordingtothedatafromepidemiology,thein-cidenceofcancerrisessteadilywithadvancingage.Age?specificincidenceratesfromtheThirdNationalCancerSurveyoftheUnitedStatesrevealedthattheriskofcancerdevelopmentinthe6thdecadeoflifeisapproximately1%,whichincreasesto2%inthe81styearoflife(1).Theincidencesofmostgyneco-logiccancersincludingcervicalcancer,endometrialcancer,ovariancancerandvulvarcancerpeakaftertheageof60years(2-4).Surgeryisoneofthemaintreatmentoptionsforgynecologiccancerandmaybringaboutsomeeff…     

4-Aminopyridine induces the release of neuropeptide Y (NPY) to produce an atropine- and tetrodotoxin-resistant contraction in rabbit isolated jejunum

4-Aminopyridine (4-AP) induced an atropine- and tetrodotoxin (TTX)-insensitive contraction (resistant contraction), in a concentration-dependent manner, in the isolated jejunum of rabbits. The failure of specific antagonists of histamine, serotonin and substance P to affect this resistant contraction ruled out the participation of histamine, serotonin and/or substance P. Antiserum against neuropeptide Y (NPY) reduced this resistant contraction in a concentration-dependent manner and inhibited the action of 4-AP totally at a high concentration (1.25% dilution) whereas normal serum lacked this ability. This suggested that the release of NPY was involved in this 4-AP-induced resistant contraction. Radioimmunoassay of NPY-like immunoreactivity in isolated synaptosomal preparations indicated that 4-AP possessed the ability to induce the release of NPY. However, guanethidine did not affect the actions of 4-AP, indicating that NPY is released mainly from non-adrenergic nerves. Our results indicate that 4-AP induces the release of NPY from non-adrenergic nerves to produce an atropine- and TTX-resistant contraction in the isolated jejunum of rabbits.     

癫痫的外科治疗

本文报告40例癫痫病人采用手术治疗。30例作了CT检查、脑电图检查,6例作脑电地形图检查,对手术定位有较大帮助。术中用脑皮层电图监测,有效地提高了癲痫源灶的切除率,手术有效者34例(85.0%)。作者还应用了胼胝体切开术,从病灶切除的病理所见,癫痫的外科治疗应引起神经外科的重视。     

Monokines produced by macrophages stimulate the growth of osteoblasts

We have previously reported that the J774A.1 macrophage-like tumor cell line produces two potent monokines which stimulate the growth of osteoblasts and chondrocytes. These growth factors, which have an affinity for heparin-agarose, have been termed HEP I (a 30 Kd PDGF-like molecule) and HEP II (an approximately 20 Kd molecule), respectively, based on their elution profile. Unlike HEP I, HEP II does not stimulate the growth of fibroblasts. Extensive biological and chromatographic studies disclosed that HEP II appears to be a unique bone cell mitogen unlike any known growth factor, including the FGFs, IL-1s, and TNFs, EGF, IGF-I and -II, TGF-beta, beta 2 microglobulin, G-CSF, CSF-1 and GM-CSF. To characterize more fully the effects of the macrophage-derived monokines on osteoblast growth and function, clones were derived from calvaria explant cultures. Two clones, SDFRC-2.05 and SDFRC-3, were developed and found to exhibit osteoblastic characteristics, including high levels of alkaline phosphatase, synthesis of type I but not type III collagen, and an increased intracellular cAMP production in response to PTH. The SDFRC-3 cells exhibited a polygonal morphology like that of the explant-derived cells while SDFRC-2.05 cells exhibited a more fibroblastic morphology. When tested on the explant cultures and clones, HEP I and HEP II were found to stimulate DNA synthesis and increase protein per culture, but decreased alkaline phosphatase activity. Clone SDFRC-3 was found to be more responsive to HEP II than clone SDFRC-2.05. Both monokines were found to be more potent mitogens for bone cells than TGF-beta. HEP II, but not HEP I or TGF-beta, induced a transformation of bone cells from a polygonal to a fibroblastic morphology, suggesting the induction of migration prior to proliferation. Thus, macrophages may be responsible not only for bone repair but also for ensuring the linkage of bone formation to resorption during physiological remodeling.