共查询到19条相似文献，搜索用时 140 毫秒
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范伟荣 《金华职业技术学院学报》2013,(6):74-77
目的：探讨不同止血方法对腹腔镜卵巢囊肿剔除术后年轻患者卵巢储备功能的影响。方法：将2009年12月至2011年12月因单侧良性卵巢囊肿且年龄≤35岁的住院患者83例随机分为缝合组与电凝组．两组分别于术前、术后,1、6个月后第一次月经的第2-5天检测血清雌二醇（E：）、卵泡刺激素（FSH）及黄体生成素（LH）水平;阴道彩超检测窦卵泡数（AFC）和卵巢间质动脉血流的收缩期峰值（PSV）;以两者结合判定卵巢储备功能。结果：术前激素水平两组间差异无统计学意义（P〉0．05）;术后1、6个月E2、FSH水平与术前比较,缝合组无差异（P〉0．05）、电凝组有差异（P〈0．05）、两组间比较有统计学意义（P〈0．05）,LH水平差异无统计学意义（P〉0．05）;术后1、6个月AFC、PSV水平差异与术前比较,缝合组组内、组间均无统计学意义（P〉0．05）,电凝组组内、组间均有统计学意义;术后共发生卵巢储备功能下降者缝合组10．8％,电凝组15.2％。结论：腹腔镜下卵巢囊肿剔除术两种止血方法对卵巢储备功能均有影响,电凝止血法较单纯缝合止血法所致卵巢储备功能下降更加明显。 相似文献
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本文研究了外源催产素对弥猴的月经周期和血清孕酮含量的影响，结果发现皮下注射催产素可以缩短黄体期，但对血清孕酮含量无影响．为此本研究认为只有在有效产剂量长期刺激下才对黄体产生影响，且催产素对黄体的作用有一敏感期．对于上述推论及催产素是否直接作用于黄体或通过其它途径调节黄体功能，我们在局部试验及其它试验中加以证实． 相似文献
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孵化至18d的肉仔鸡活胚蛋240枚,随机分成4个处理组,每组6个重复,每个重复10枚蛋。处理组Ⅰ羊膜腔注射1mL0．75％生理盐水作为对照,处理组Ⅱ、Ⅲ、Ⅳ分别向羊膜腔内注射质量浓度为0．5％、1．0％、1．5％的谷氨酰胺营养液1mL。继续孵化及出壳后分析表明：胚胎注射对胚蛋孵化率没有影响（P〉0。05％）;胚胎注射谷氨酰胺对肉仔鸡出壳重和出壳重／蛋重无显著影响（P〉O．05）;出壳后第3天,试验组体重较对照组有提高的趋势（P〉0．05）,出壳后第7天,1．0％注射组体重比对照组提高10．89％（P〈0．01）,1．5％注射组较对照组体重增加7．33％（P〈O．05）;3日龄肉仔鸡0．5％注射组血浆T4含量较对照组提高23．67％（P〈0．05）;7日龄肉仔鸡1．0％和1．5％注射组血浆T3含量比对照组分别提高了36．63％和26．16％（P〈0．05）。总之,鸡胚注射G1n可促进肉仔鸡早期生长发育,注射对胚蛋孵化率及出壳重无明显影响。 相似文献
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人工感染E．tenella鸡嗜酸性细胞的动态变化 总被引：1，自引：0，他引：1
80羽21日龄罗曼蛋公鸡随机分成试验与对照两组，研究雏鸡在21日龄人工感染E．tenella后第1、2、3、4、5、6、7、8天鸡嗜酸性细胞的动态变化。结果表明：感染E．tenella之后，试验组比对照组嗜酸性细胞明显增多，每日组间差异均极显著(P＜0．01)；在感染后第1—6天，试验组日间差异不显著(P＞0．05)，在感染后第6—7天，试验组日间差异极显著(P＜0．01)，而在感染后第7—8天日间差异显著(P＜0．05)。 相似文献
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将敌鼠钠盐拌入饲料中给喂４只实验猕猴。第１次喂食１次，浓度为０．０２８％的饲料未使猴出现可见的中毒反应。间隔１２ｄ后第２次喂食浓度为０．０２３％的敌鼠钠盐的饲料，连续３天（１次／天），被饲喂的猕猴于第５天出现血尿、血便的中毒症状，并在第８天开始发现死亡。而经维生素Ｋ１进行救治的猕猴则避免死亡得到康复。 相似文献
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以凡纳滨对虾为研究对象,让其暴露在含0,5,15,45,135μg/L辛基酚（OP）的养殖水体中,暴露24,48,72,96,120 h后取样,分析测定凡纳滨对虾壳膜与内脏 NAGase 比活力的变化．结果表明,水体 OP 对对虾壳膜 NAGase比活力基本起激活作用．暴露72 h内,壳膜 NAGase比活力无显著性变化;暴露96 h时,5,15,135μg/L OP均对虾壳膜 NAGase 比活力起极显著激活作用（P＜0．01）,45μg/L OP 对虾壳膜 NAGase比活力起显著激活（P＜0．05）;暴露120 h时,15,135μg/L OP 对虾壳膜 NAGase 比活力仍表现为显著性激活作用（P＜0．05）,但5,45μg/L OP 对壳膜 NAGase 的比活力影响无显著性．而水体 OP 对虾内脏 NAGase比活力基本起抑制作用．在15μg/L OP体系下暴露24 h,内脏NAGase极显著下降（P＜0．01）,其他 OP浓度下无显著性变化;不同浓度下暴露48 h,对虾内脏 NAGase比活力均出现极显著下降（P＜0．01）;5μg/L OP体系下暴露72 h,对虾内脏 NAGase比活力无显著性下降,其他 OP 浓度下的对虾内脏 NAGase 比活力均出现极显著下降（P＜0．01）;15,135μg/L OP 体系下暴露96 h,内脏 NAGase 比活力也分别出现极显著（P＜0．01）及显著性（P＜0．05）下降．可见,OP暴露对对虾生长发育会产生影响． 相似文献
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红参提取物对红细胞膜磷脂成分的影响 总被引：1，自引：0，他引：1
吴峰 《临沂师范学院学报》2001,23(6):63-64
以家兔为实验动物，采用薄层色谱扫描法探讨红参提取物对红细胞膜磷脂成分的影响，结果显示：实验组红细胞膜膦脂成分中磷脂酰胆碱显著增多（P＜0．01），而鞘磷脂类，磷脂酰乙醇胺都程序不同的减少（P＜0．05），特别是磷脂酰丝鞍酸含量，鞘磷脂类／磷脂酰胆碱及磷脂酰丝氨酸／磷脂酰胆碱比值显著减少（P＜0．01），表明红参对维持细胞膜的稳态有重要作用。 相似文献
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目的：探讨早期宫颈癌中局部浸润及其预后意义．方法：应用免疫组织化学检测65例早期宫颈癌中MMP2、MMP9、CathepsinD、E-cadherin．并利用原位杂交检测HPV的表达．分析其与临床参数和预后之间的关系。结果：MMP2的表达与组织学分型、淋巴结转移、局部复发有关（P〈0．05）．与UICC分期无关（P〉0．05）；MMP9的表达与淋巴结转移、局部复发有关（P〈0．05），与组织学分型、UICC分期无关（P〉0．05）；CathepsinD的表达与组织学分型、淋巴结转移、局部复发、UICC分期均存在相关（P〈0．05）；E-cadherin的表达与淋巴结转移、UICC分期有关（P〈05）．与局部复发、组织学分型无关（P〉0．05）；HPV的表达与组织学分型有关（P〈0．05），与淋巴结转移、局部复发、UICC分期无关（P〉0．05）；经多因素Cox比例风险模型分析显示：组织学分型、CathepsinD、MMP2的表达与早期宫颈癌患者术后生存率有关（P〈0．05）。结论：MMP2、MMP9、CathepsinD、E-cadherin参与了早期宫颈癌的局部浸润；组织学分型、MMP2、CathepsinD的表达可作为宫颈癌患者独立的预后因素． 相似文献
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在71只小鼠上以200mg／kg剂量、闯日2次腹腔注射四氧嘧啶制备高血糖模型小鼠,得到35只血糖高于9．0mmol／L的小鼠。将高血糖模型小鼠按相似血糖水平分为对照组和2个实验组,血糖分别为：14．77±6．71（mmol／L,下同）,14．53±5．40,14．40±6．18,组问无显著差异（P〉0．05）。对照组饲喂基础饲料,实验1和2组分别在基础饲料中添加10％的柑橘皮和10％的瓯柑橘皮,饲养1周后测定血糖,对照组为12．23＋5．11,无显著变化（P〉0．05）;柑橘组和瓯柑组下降到6．48±1．58和6．09±1．23（均P〈0．001）,结果说明柑橘皮和瓯柑皮对小鼠有极显著的降糖作用。 相似文献
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目的：研究微毛诃子树皮醇提物和水提物对大鼠离体子宫平滑肌活动的影响。方法：观察微毛诃子树皮醇提液和水提液对大鼠离体子宫平滑肌自发性收缩活动和催产素或组胺作用后子宫的影响。结果：微毛诃子树皮醇提液和水提液均可使大鼠自发及催产素作用后子宫平滑肌收缩频率减慢,张力减小,活动力下降;水提液还显著减弱子宫收缩幅度并使组胺作用后的子宫平滑肌张力增大,收缩频率加快,收缩幅度升高,活动力增强。结论：微毛诃子树皮的醇提物和水提物均能抑制大鼠子宫的自发性以及催产素作用后的子宫的收缩活动,其水提液可以拮抗组胺对大鼠子宫收缩活动的抑制作用。 相似文献
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Qi-huan Wang Shuang Zhang Li-meng Qin Wen-jun Zhang Feng-hua Liu Jian-qin Xu Yun-fei Ma Ke-dao Teng 《Journal of Zhejiang University. Science. B》2017,18(11):986-993
Prolonged farrowing remains one of the critical challenges in intensive pig farming. This study aims to explore the effects and mechanism of Yimu San (YMS), a Chinese veterinary medicine micro mist, on delivery ability with mouse models. Thirty-two pregnant mice were randomly divided into a control group and low-YMS, med-YMS, and high-YMS groups. The labor process time and stillbirth rate were recorded, the levels of serum oxytocin and prostaglandin E2 (PGE2) were measured with enzyme-linked immunosorbent assay (ELISA). Contractility measurements of the isolated uterus and the expression of connexin 43 (Cx43) in uterine smooth muscle were evaluated. The results showed that compared with the control group, the birth process time and stillbirth rate in the med-YMS and high-YMS groups were remarkably lower. The in vitro uterine contractions, levels of oxytocin, PGE2, and Cx43 in the med-YMS and high-YMS groups were significantly higher than those in the control group. The differences of the above measurements between the low-YMS group and the control group were not obvious. It can be speculated that YMS could significantly promote labor in pregnant mice by enhancing the levels of oxytocin, Cx43, and PGE2. 相似文献
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Johanna Bick Mary Dozier Kristin Bernard Damion Grasso Robert Simons 《Child development》2013,84(3):826-840
This study examined the biological processes associated with foster mother–infant bonding. In an examination of foster mother–infant dyads (N = 41, mean infant age = 8.5 months), foster mothers' oxytocin production was associated with their expressions of behavioral delight toward their foster infant and their average P3 response to images of all infant faces in the first 2 months of the relationship. Three months later, foster mothers' oxytocin production was still associated with delight toward their foster infant and was also specifically associated with their P3 response to an image of their foster infant. Similar to biologically related mothers and infants, oxytocin appears to be associated with foster mothers' brain activity and caregiving behavior, with patterns suggestive of bond formation. 相似文献
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Romano AM 《The Journal of perinatal education》2007,16(3):53-58
In this column, the author summarizes four research studies that contribute to the body of literature on the benefits and physiology of normal childbirth. The topics of the studies include the effect of digital rotation of the baby in occipito-posterior position on position at birth and birth outcomes; temperature disturbances during skin-to-skin contact among babies exposed to epidural analgesia and exogenous oxytocin during labor; the prevalence of and motivations for "maternal request" cesarean surgery; and the benefits of delayed clamping of the umbilical cord after birth. 相似文献
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Infusion of nonmyeloablative bone marrow alleviates acute rejection reaction in liver allotransplantation 总被引：1，自引：0，他引：1
Objective: To study the effect and implication of nonmyeloablative donor specific bone marrow (DSBM) infusion on the immunoreaction of liver allotransplantation. Methods: Orthotopic liver transplantation model was used in this study. Groups were set as follows: Group Ⅰ, syngeneic control (Wistar-to-Wistar); Group Ⅱ, acute rejection (SD-to-Wistar); Group Ⅲ, acute rejection treated with cyclosporine A (CsA) by intramuscular injection (SD-to-Wistar CsA); Group Ⅳ, bone marrow infusion at 7 d pretransplantation followed by short-term CsA treatment (SD-to-Wistar DSBM); Another group of short-term CsA treatment preoperatively without bone marrow infusion was also set as control. General characteristics and survival time were observed.Histological grades of rejection were determined by pathological examination. IL-2 and IFN-γ level in peripheral blood and donor liver were detected respectively by Enzyme-Linked Immuno-Sorbent Assay (ELISA) and Western blot. Chimerism of donor cells was measured by PCR for a male-specific marker (Y-chromosome-specific sequence, Sry). Results: No signs of rejection were found in Group Ⅰ. Acute rejection occurred in both Group Ⅱ and the short-term CsA treated group. All the recipients died at (9～15)d posttransplantation with a median survival time of (10.7±0.5) d and (11.2±2.4) d, respectively. Only mild rejection could be seen in Group Ⅲ. In Group Ⅳ, 4 out of 6 recipients had long-term survival (＞100 d), the histological grade of rejection was significantly lower than that of Group Ⅱ, so did the expression level of IL-2 and IFN-γ in both peripheral blood and grafted liver.Y-chromosome-specific sequence (Sry) of male SD rats could be detected in the bone marrow, spleen and thymus of female recipients at 15 d after bone marrow infusion. Conclusion: Mild preconditioning nonmyeloablative donor specific bone marrow infusion can enhance chimerism formation in recipients, alleviate the rejection of liver allotransplantation and prolong survival of liver allotransplantation. 相似文献
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为了提高医院服务系统的智能化水平,设计了一种总线互联的病床呼叫及输液监控系统。系统由一个主站和多个从站组成．主站可以接收从站送出的呼叫信号,并存储20个呼叫的病床号,具有手动清除当前显示的病床号及声光报警信号的功能。在从站上能实时显示点滴速度,在输液结束3秒内发出声光报警信号,并提示主站进行处理。主站和从站问最远距离可以达到1000米以上,同时主站能巡回显示从站的编号和当前的点滴速度,显示间隔时间可以在3～10秒间任意设定。 相似文献
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INTRODUCTION The specific morphologic properties of choroidal epithelium and the existence of a cerebrospinal fluid(CSF)pathway for drug distribution to the central nervous system(CNS)suggest that the choroid plexus-CSF route may be more significant than pre-viously thought for drug delivery to the brain(Ghersi-Egea and Strazielle,2001).There is limitedl d l d-n d information about the CSF pharmacokinetics of propofol in humans(Engdahl et al.,1998;Dawid-owicz et al.,2001a).Propofol… 相似文献
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Heng Li Shi-ren Sun John Q. Yap Jiang-hua Chen Qi Qian 《Journal of Zhejiang University. Science. B》2016,17(3):181-187
The purpose of this review is to objectively evaluate the biochemical and pathophysiological properties of 0.9% saline (henceforth: saline) and to discuss the impact of saline infusion, specifically on systemic acid-base balance and renal hemodynamics. Studies have shown that electrolyte balance, including effects of saline infusion on serum electrolytes, is often poorly understood among practicing physicians and inappropriate saline prescribing can cause increased morbidity and mortality. Large-volume (>2 L) saline infusion in healthy adults induces hyperchloremia which is associated with metabolic acidosis, hyperkalemia, and negative protein balance. Saline overload (80 ml/kg) in rodents can cause intestinal edema and contractile dysfunction associated with activation of sodium-proton exchanger (NHE) and decrease in myosin light chain phosphorylation. Saline infusion can also adversely affect renal hemodynamics. Microperfusion experiments and real-time imaging studies have demonstrated a reduction in renal perfusion and an expansion in kidney volume, compromising O2 delivery to the renal parenchyma following saline infusion. Clinically, saline infusion for patients post abdominal and cardiovascular surgery is associated with a greater number of adverse effects including more frequent blood product transfusion and bicarbonate therapy, reduced gastric blood flow, delayed recovery of gut function, impaired cardiac contractility in response to inotropes, prolonged hospital stay, and possibly increased mortality. In critically ill patients, saline infusion, compared to balanced fluid infusions, increases the occurrence of acute kidney injury. In summary, saline is a highly acidic fluid. With the exception of saline infusion for patients with hypochloremic metabolic alkalosis and volume depletion due to vomiting or upper gastrointestinal suction, indiscriminate use, especially for acutely ill patients, may cause unnecessary complications and should be avoided. More education regarding saline-related effects and adequate electrolyte management is needed. 相似文献