Change of the level of copeptin in plasma and its sigificance in patients with intracerebral hemorrhage combined with stress ulcer / 中国医师进修杂志

Objective To explore the change of copeptin in plasma and its significance in patients with intracerebral hemorrhage combined with stress ulcer.Methods Eighty patients with intracerebral hemorrhage were collected.Forty-nine patients of pure intracerebral hemorrhage and 31 patients of intracerebral hemorrhage combined with stress ulcer were included.Thirty healthy people were taken as controls.The level of copeptin in plasma was measured and compared in all subjects.Results The level of copeptin in plasma in patients with pure intracerebral hemorrhage and intracerebral hemorrhage combined with stress ulcer was significantly higher than that in controls:(303.684 ± 68.691),(527.034 ± 74.111) ng/L vs.(121.460 ± 53.364) ng/L,and the level of copeptin in plasma in patients with intracerebral hemorrhage combined with stress ulcer was significantly higher than that in patients with pure intracerebral hemorrhage.The differences were statistically significant (P ＜ 0.05).Conclusion The level of copeptin in plasma in patients with pure intracerebral hemorrhage increases significantly,and it is much higher in patients with intracerebral hemorrhage combined with stress ulcer.

Electron microscopic observations on changes of cytoplasmic organelles in the oocytes of Cervus nippon hortulorun / 解剖学报

Objective Revealing the developmental regulation of Cervus nippon's oocyte and organelles. Methods In the experiment,follicle systems during both estrum and non- estrum were divided into the primordial follicle,growing follicle and mature follicle according to the Cervus nippon's follicle diameter size,formation of zonapellucida,appearance time of follicular cavity.At the same time,observations on cytoplasmic organelles in development of oocytes were conducted with electron microscopic,eyepiece micrometer and photomicrographic technique(The number of every oocyte observed is 6-8). Results In the primordial follicle and early growing follicle phase,the quantity of mitochondria,golgi apparatus,smooth endoplasmic reticulum and cortical granules increased gradually and all organelles moved to the cortical area.However,in the late growing follicle and mature follicle phase,Golgi apparatus and rough endoplasmic reticulum disappeared,cortical granules began to arrange themselves in line beneath the plasma membrane of the oocyte,mitochondrias dispersed toward the central region of cytoplasm,and almost all the round mitochondria with rare cristae turned into hooded ones, and nucleus compaction occurred.In addition,the short and thick microvilli began to appear from the primary follicle ovocyte,become intensive and slender when secondary follicle's ovocyte;It's until tertiary follicle's ovocyte,microvilli started to shorten and become coarse,and even parts of them contract from the zona pellucida gradually.Conclusion In the development of oocytes, the changes of type,quantity and distribution on mitochondria has a close relation with cells at proliferation,differentiation and metabolism level.Cortical granule has no association with golgi apparatus basically,but smooth endoplasmic reticulum(SER).The nuclei are the sites of RNA synthesis and warehouses,and its densification is the premise of meiosis recovery.