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血管病

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Histologically, the seminiferous tubules contained numerous Sertoli cells and more Sertoli-spermatozoa complexes, accompanied by the depletion of Leydig cells with deeply stained nuclei. Mature spermatozoa were stored up in the epididymis, but only a few in the efferent ducts. In the second place was testicular atrophy(32/120; 26.7%). The seminiferous tubules showed moderate to severe inactivity of spermiogenesis with evidence of only spermatogonia, spermatocytes and Sertoli cells. The Leydig cells were obviously decreased in numbers associated with decrease of lipid droplets in their cytoplasms. Testicular hypoplasia was the third disorders(22/120; 18.3%). Only a few spermatogonia and Sertoli cells appeared without any spermiogenesis. The associated changes was decreased in Leydig cells and fibrous hyperplasia in the interstitium.Epididymal stones were sometimes found(12/120; 10%). Grossly, yellowish-white nodules with various sizes and firm in consistency were observed in the epididymis and the front efferent ducts. Microscopically, the epididymal ducts were dilated with voluminous spermatozoa storage, even showed calcification in severe cases. The deposited calcium salts were stained positively by Von Kossa and Alizarin red methods.Amyloidosis was also detected in 10 roosters(8.3%). Eosinophilic, homogeneous, amyloid-like substances were deposited mainly in the testicular interstitium and the periphery of blood vessels. These substances showed positive reaction by Congo red staining. Five roosters(4.2%)had Marek's lesions in the testis, epididymis and peripheral nerves with infiltration of pleomorphic lymphocytes. Only one case showed epithelial necrosis of seminiferous tubules accompanied by fibrous proliferation in the interstitium.

结果发现,在总共搜集的120个病例中,其中因年老所导致的产精力不佳为最多,占38例(31.7%),於镜下可见大量精虫黏附於Sertoli cell的表面,并可见Sertoli cell数量明显增多而Leydig cell明显减少,且其细胞核呈现浓染的现象,而在其副睪中仍可见到成熟精虫蓄留於管腔中,但在其输精管内却只有少量精虫存在;其次为睪丸萎缩,占32例(26.7%),镜下可见中度至重度无造精作用,其生精小管中只见到精母细胞、精原细胞及Sertoli cell存在,但Leydig cell数量明显减少且其细胞质内的脂质也明显减少;睪丸发育不全,占22例(18.3%),於生精小管内只见到精母细胞及少量Sertoli cell存在,不见造精细胞分化,於生精小管间质可见Leydig cell减少并伴随结缔组织增生;副睪结石,占12例(10%),肉眼下可在副睪及输精管前段见到黄白色大小不一的结节,触感坚硬,於镜下可见副睪管扩张并有大量成熟精虫蓄积,严重时可见钙化现象,以Von Kossa及茜素红染色均呈阳性反应;类淀粉沉著症,占10例(8.3%),镜下在睪丸间质及血管周围可见粉红均质样的物质沉积,以刚果红染色成阳性反应;马立克病,占5例(4.2%),镜下可在睪丸、副睪实质及周边神经内均可见到嗜碱性大小不一的淋巴样细胞浸润;睪丸坏死,占1例(0.8%),镜下可见生精小管上皮细胞坏死脱落及间质结缔组织增生。

Marston, MD, from the University of North Carolina School of Medicine in Chapel Hill, and colleagues."Dermagraft is a bioengineered dermal substitute that laboratory data suggest has two principal modes of action. It provides living, human dermal fibroblasts that deposit matrix proteins and facilitate angiogenesis. It also provides a preformed collagen matrix, receptors, and bound growth factors that facilitate the migration of the patients' epithelial cells that close the wound."

Marston医师及同事表示,针对治疗慢性溃疡的生理失能的患者,还需要更多有效的疗法,而人工皮肤就是一种生物工程皮肤代用品,这一项实验室数据显示两种最重要的功能模式,它提供活体人类皮肤纤维组织母细胞,储存母体蛋白质并促进血管新生,另外它也提供预先形成的胶原母体、接受器及束缚成长因子,帮助病患的上皮细胞移动,使伤口愈合。

To prevent amputations in patients with peripheral disease it is important to ensure early referral to a vascular surgeon.

为防止外周病患者截肢,重要的一点是要确保尽早安排血管外科医生。

Cardiac hypertrophy is a common complication of clinical cardiovascular diseases, and one of fatal factors of cardiovascular diseases' incidences and mortalities. So it is very beneficial to prevent cardiac hypertrophy for the people.

心肌肥厚是临床上心血管疾病常见的并发症,是心血管病发生率和死亡率增高的重要危险因素,因此,防止心肌肥厚的发生具有重要的意义。L-甲状腺素诱发的大鼠心肌肥厚是研究缺血性肥厚心肌的适宜模型。

Vascular obstruction of the microcirculation may be caused by fat emboli, related to hyperlipidemia associated with alcoholism, steroid therapy, SCD, and nitrogen bubbles in decompression sickness.

血管阻塞的微循环可能造成的脂肪栓子,与高脂血症与酗酒,类固醇治疗,猝死,氮泡沫减压病。

The animal model of this method system have, the characteristics of the high fat, high leptin, high Ins, and match with the characteristic of clinical and the pathologic of simple obesity. This studies showed: The acupuncture can obviously reduce the vaule of intaking food and water of the fat rats, and lower the body weight and fat; The acupuncture can urge the diameter, area, physical volume of white fat cell contract, Brown fat tissue of fat rat group surroundings vascular containing large quantity of white fat cell, the acupuncture group was less. this showed: The acupuncture enhanced the white fat cell metabolism, and promotesed the white fat cell to convert to brown fat cell; The frequency of spontaneous electric of nerve cell of pvn of the fat rat is high, the acupuncture counld depress the spontaneous electric of nerve cell of pvn, This showed: the acupuncture can depress the appetite passing to adjust function of pvn nerve; The monoaminergic neurotransmitter of inside of the fat rat brain is disfunction, the acupuncture can rectify this disfunction, and adjust level of 5-HT, and affect appetite, and improve metabolism; The level of leptin and Ins of fat rat increased high, The level of it of acupuncture group decreased, compared with the fat group p.001, This showed: the fat rats have the defeat of leptin and Ins in the body, The acupuncture can lowering this defeat, The level of leptin and Ins of the fat rat in the brain is less than the normal group, The level of leptin of the acupuncture group is high than the fat group, This showed: the acupuncture can increase the transportation of leptin from blood to brain.

本方法所制肥胖大鼠模型具有高体重、高脂、高leptin和高Ins血症的特点,符合人类单纯性肥胖病的临床和病理特征;实验研究显示:针灸能明显减少肥胖大鼠的摄水、摄食量及降低其体重、体脂;针灸能促使白色脂肪细胞直径、面积、体积缩小,减少肥胖大鼠棕色脂肪组织血管周围白色脂肪细胞数量,显示:针灸增强了白色脂肪细胞的代谢,促进了白色脂肪细胞向棕色脂肪细胞的转化:肥胖大鼠PVN神经细胞自发放电频率增加,脑内单胺递质紊乱,针灸通过抑制PVN亢奋的自发放电,调整5-HT水平,达到影响食欲,改善代谢的作用;肥胖大鼠血中leptin及Ins水平增高,与正常组大鼠比有明显差异,提示大鼠体内存在leptin及Ins抵抗,针灸后肥胖大鼠随着体重体脂的下降,血中leptin、Ins水平降低,与肥胖组比均有显著性差异,而针灸后大鼠脑内leptin增加,与肥胖组比P.05,提示:针灸具有改善leptin、Ins抵抗及增加leptin脑内转运的作用。

Senior author Duska Dragun, MD, from the Department of Nephrology and Intensive Care Medicine, Charite University Hospital–Campus Virchow Clinic, Berlin, Germany, and colleagues in Berlin and in Melbourne, Australia, investigated whether the COMT variant with lower activity predisposes patients to acute kidney injury and prolonged vasodilatory shock after bypass surgery because of the increase in plasma catecholamines.

资深作者、来自德国柏林Charite大学医院校园Virchow诊所肾脏科的Duska Dragun医师与澳洲墨尔本及柏林的同事们研究COMT基因变异是否会降低病患接受绕道手术后,因为血中儿茶酚胺浓度上升,发生急性肾脏损伤与血管扩张性休克的机率。

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