一、安装Nero Burning ROM
直接双击下载的"Nero6603.exe"进行主程序的安装,自动解压之后会打开安装向导,单击"下一步"按钮,选择接收协议,单击"下一步"按钮,在下面的窗口中输入用户名和公司名称,单击&qu...一、安装Nero Burning ROM
直接双击下载的"Nero6603.exe"进行主程序的安装,自动解压之后会打开安装向导,单击"下一步"按钮,选择接收协议,单击"下一步"按钮,在下面的窗口中输入用户名和公司名称,单击"浏览"按钮选择安装目录(图1),直接单击"下一步",最后单击"完成".展开更多
Balantidium coli is a zoonotic protozoan parasite, and pork is considered the major source of Balantidium infection in humans. Transmission is direct and commonly occurs through the ingestion of water and food, especi...Balantidium coli is a zoonotic protozoan parasite, and pork is considered the major source of Balantidium infection in humans. Transmission is direct and commonly occurs through the ingestion of water and food, especially vegetables, contaminated with infectious cysts. Ingestion of meat contaminated, with faecal material during the evisceration process, can represent a potential risk of B. coli transmission. In order to determine the rate of B. coli infection in pigs regularly slaughtered at abattoirs in the province of Messina (Sicily, Italy), faecal samples of 242 pigs (122 commercial hybrid and 120 Nero Siciliano pigs) were collected and evaluated by standard methods for the presence of trophozoites and/or cysts. A total of 105 of the commercial hybrid (86.06%), but only 44 of the Nero Siciliano (36.66%) pigs, were identified as positive for B. coli infection. The results obtained, may be linked to the type of farming employed.展开更多
文摘目的:基于癌干细胞的耐药特性联合单细胞培养方法识别肝癌干细胞所在的克隆亚群.方法:以BEL-7404细胞系为研究对象,裸鼠体内移植瘤形成实验,并予阿霉素(adriamycin,ADM)8 mg/kg干预,待肿瘤直径为1.5 cm时取移植瘤细胞做原代培养,并在裸鼠体内连续传代4代,并将第4代移植瘤细胞命名为"BEL-7404-ADM-P4",根据成瘤时间检测肝癌干细胞富集情况.联合单细胞培养,取BEL-7404及BEL-7404-ADM-P4所形成的克隆根据克隆形态分为全克隆、部分克隆、旁克隆,检测BEL-7404及BEL-7404-ADM-P4单克隆中全克隆、部分克隆、旁克隆的癌干特性,即增殖能力、克隆形成率及悬浮球形成率;取其全克隆、部分克隆、旁克隆做hoechst33342染色,并在共聚焦显微镜下观察其染色情况;根据BEL-7404及BEL-7404-ADM-P4单克隆中全克隆、部分克隆、旁克隆的增殖能力、克隆形成率及悬浮球形成率以及hoechst33342染色情况识别癌干细胞所在的克隆亚群.结果:裸鼠体内低剂量阿霉素干预,在体内连续成瘤传代过程中,裸鼠皮下移植瘤成瘤率均为100%,且成瘤时间从第一代到第四代均有所缩短,以此达到了肝癌干细胞的初步富集;增殖能力:全克隆增殖速度最快,细胞量最大,部分克隆次之,旁克隆增殖速度最慢,并于第10天开始出现细胞皱缩死亡;克隆形成率:BEL-7404-ADM-P4-H高于BEL-7404及BEL-7404-ADM-P4-M,差异有统计学意义(P<0.05);悬浮球形成率:仅BEL-7404-H及BEL-7404-ADM-P4-H可形成悬浮球,其余细胞系不形成悬浮球,而BEL-7404-H及BEL-7404-ADM-P4-H悬浮球形成率比较,无统计学意义(P>0.05);BEL-7404及BEL-7404-ADM-P4单克隆中全克隆、部分克隆、旁克隆hoechst33342染色情况:BEL-7404及BEL-7404-A D M-P4单克隆中全克隆都有极少数不染和低染的细胞存在,但部分克隆、旁克隆全染,且BEL-7404单克隆中全克隆、部分克隆、旁克隆hoechst33342荧光强度均强于BEL-7404-ADM-P4单克隆中全克隆、部分克隆、旁克隆.结论:基于癌干细胞的耐药特性联合单细胞培养方法所形成的克隆亚群中,全克隆含有更高比例的肝癌干细胞.
文摘Balantidium coli is a zoonotic protozoan parasite, and pork is considered the major source of Balantidium infection in humans. Transmission is direct and commonly occurs through the ingestion of water and food, especially vegetables, contaminated with infectious cysts. Ingestion of meat contaminated, with faecal material during the evisceration process, can represent a potential risk of B. coli transmission. In order to determine the rate of B. coli infection in pigs regularly slaughtered at abattoirs in the province of Messina (Sicily, Italy), faecal samples of 242 pigs (122 commercial hybrid and 120 Nero Siciliano pigs) were collected and evaluated by standard methods for the presence of trophozoites and/or cysts. A total of 105 of the commercial hybrid (86.06%), but only 44 of the Nero Siciliano (36.66%) pigs, were identified as positive for B. coli infection. The results obtained, may be linked to the type of farming employed.
