Immunomodulative effects of mesenchymal stem cells derived from human embryonic stem cells in vivo and in vitro

Objective  

Human embryonic stem cells (hESCs) have recently been reported as an unlimited source of mesenchymal stem cells (MSCs). The present study not only provides an identical and clinically compliant MSC source derived from hESCs (hESC-MSCs), but also describes the immunomodulative effects of hESC-MSCs in vitro and in vivo for a carbon tetrachloride (CCl₄)-induced liver inflammation model.     

我们的青春不曾热血

<正>第一次与这个城市见面,就感觉这里的生活似乎无比安逸。街道上少有车辆,让街旁的树木都显得孤单,它们与清澈的江水遥遥相望,一起欢迎陌路客光临。晚上,一群人坐在岸边闲聊,沿路的灯光皎洁如苍穹的明月,照得彼此的脸一半明亮,另一半犹如淹没进夜色的浓稠里去了似的没有轮廓。远处的江面起了薄雾,它遮掩了那边的灯火,成了朦胧的一片光景,光驱散了我们的笑声,却驱散不了它的若隐若现。我突然有些垂头丧气。我们的青春根本没有电影里     

How to Say "Be Strong"

冬去春来,万物复苏。在2020这个春天,我们都曾有过紧张,有过担忧,甚至还有悲伤。但是,不管怎样,我们都要“挺住”“加油”……这一期,我们就来学一学“怎样鼓励他人,怎样给自己打气、加油”!     

Surveillance of viral contamination of invasive medical instruments in dentistry

Objective： To investigate the viral contamination of invasive medical instruments in dentistry and to provide health administrative institutions with surveillance data. Methods： Sterilized samples were randomly collected from the department of dentistry to detect HBV-DNA, HCV-RNA, HIV-RNA and HBsAg. Results： Of the invasive medical instruments that were sterilized with 2% glutaraldehyde, one of the samples was positive for HBV-DNA, and another sample was positive for HBsAg. Conclusion： Though massive virus contamination of invasive medical instruments in dentistry has been reduced to a low level, the occurrence of contamination still remains.     

一位少女作家的诞生

<正>1早慧是天生的吗?虽然还是中学生,闵诗睿已经拥有了极其丰富的履历——她是西安市作家协会会员、出过两本书,获得过上百个大小文学奖项,琵琶八级,民族舞五级,还上过几次电视……她的荣誉列满了整整2页A4纸,而我脑海中浮出一个词:早慧。那么,早慧是天生的吗?如何能成长为早慧少女?以下,将会为你一点点揭开答案。     

小小乌篷船

<正>1范偶从柳二爷口中确定了茂山也要拜师的消息后,心里气得不行。他掰了片荷叶扇风,然后一屁股坐在柳树下,开始分析起眼前的情况。玉新镇地处江南水乡,历朝历代都有很多水上人家,他们以船为家,船到哪里,就在哪里打鱼、摆渡、做饭和睡觉。这吃饭可是顶要紧的大事,船上的饭菜叫船菜,讲究的人家还做船点。船点是一种由米粉做成的点心。