1.A case with hereditary fructose intolerance.
Si-jin ZHANG ; Ji WANG ; Lei ZHANG
Chinese Journal of Pediatrics 2006;44(12):957-957
2.MicroRNA and cancer.
Chinese Journal of Pathology 2006;35(10):628-630
Animals
;
Humans
;
MicroRNAs
;
genetics
;
Neoplasms
;
genetics
;
pathology
;
RNA Interference
;
RNA, Neoplasm
;
genetics
;
RNA, Small Interfering
;
genetics
6.Advances in Research on Multiple Cropping of Medicinal Plants
Yuanju LI ; Ji ZHANG ; Yuanzhong WANG ; Jinyu ZHANG ; Hang JIN
World Science and Technology-Modernization of Traditional Chinese Medicine 2013;(9):1941-1947
Multiple cropping has a long history in China, and been used widely in other countries of the world. Be-cause the multiple cropping of medicinal plants (MCMP) partially alleviates land-use contradiction between medici-nal plants and crops, this cropping system is an optimization for cultivation pattern of traditional Chinese medicine (TCM), and important for sustainable development of TCM resources. In this paper, we reviewed the concept, devel-opment history, theoretical basis, and main patterns about MCMP, analyzed the effect of multiple cropping on growth, yield, effective components, pest and disease control of medicinal plants, evaluated the ecological and economic ben-efits of MCMP, and discussed issues and prospects in the research of MCMP. This information can be useful for the medicinal plant cultivators.
7.Promethazine should not be used for infants.
Feng-ling XU ; Ya-ming ZHANG ; Ying-ji JIN
Chinese Journal of Pediatrics 2010;48(7):557-557
10.Proliferation of hematopoietic stem cells differentiated from embryonic stem cells via sustained Wnt pathway activation
Fang LIN ; Jingjun JIN ; Tao ZHANG ; Binfeng JI ; Yong CHEN
Chinese Journal of Tissue Engineering Research 2014;(6):880-887
BACKGROUND:A variety of embryonic stem cells induction and differentiation systems have been established so far, while the research that promotes embryonic stem cells to differentiate into hematopoietic stem cells is stil at an initial stage, and the induction efficiency needs to be improved.
OBJECTIVE:To active the Wnt/β-catenin signal pathway in mouse embryonic stem cells with exogenous win3a as an inducer, and then to observe whether the activation of this pathway wil promote the directional differentiation of embryonic stem cells into hematopoietic progenitor cells.
METHODS:The ES-E14TG2a mouse stem cells were cultured with the exogenous wnt3a (100 μg/L) for 21 days, the content ofβ-catenin was tested by cellimmunofluorescence and western blot, and expression of Wnt downstream target gene was detected by quantitative reverse transcription PCR to determine the activation of Wnt/β-catenin signal pathway. Single-layer adherent culture method was used to induce the directional differentiate of above-mentioned cells into hematopoietic stem cells, and detection of hematopoietic development associated surface marker CD34+/Sca-1+was achieved by flow cytometry;meanwhile, the expression of hematopoietic associated gene was measured by quantitative reverse transcription PCR.
RESULTS AND CONCLUSION:We found thatβ-catenin accumulated in ES-E14TG2a mouse stem cells after cultured with wnt3a (100 μg/L) for 21 days;the expressions of Wnt downstream target genes such as Pitx2, Frizzled, Sox17 and Oct4 showed the different degrees in increase, meaning the activation of Wnt/β-catenin signal pathway. Furthermore, during the time that we used single-layer adherent culture method to induce hematopoietic stem cells, the CD34+/Sca-1+cells accounted for 20.2%of total cells at day 14, and control cells only accounted for 11.9%. Again, expression quantity of hematopoietic associated gene BMP4, FLK2 and CD34 increased while Smad5 was suppressed significantly. Our data suggest that sustaining action by wnt3a wil active Wnt/β-catenin signal pathway, and also promote the directional differentiation of ES-E14TG2a mouse stem cells into hematopoietic progenitor cells.