1.Advances in the study of precise radiotherapy for non-small-cell lung cancer
Journal of International Oncology 2006;0(10):-
With the development of computer techniques and medical imaging examining methods , precise radiotherapy is becoming the major direction of radiotherapy for tuomors. Both of tumor control probability and normal tissue complication probability are improved with precise radiotherapy. This paper critically review the value of PET-CT and breathing control in precise radiotherapy for non-small-cell lung cancer (NSCLC).
2.Research progress in mechanisms of cellular entry of Japanese encephalitis virus.
Ya-Xian ZHOU ; Jian-Qiong ZHANG
Chinese Journal of Virology 2014;30(2):188-192
Japanese encephalitis virus (JEV) is a pathogenic mosquito-borne flavivirus which is responsible for outbreaks of severe viral encephalitis. The cellular entry of JEV is a prerequisite for Japanese encephalitis, so the understanding of its underlying mechanisms will provide more approaches for treating such disease. In recent years, increasing research has been conducted to investigate the mechanisms of cellular entry of JEV, and the results of research on other flavivirus have expanded the research directions for JEV. More methods will be used to suppress JEV infection because of the development of E protein antibodies and the discovery of several inhibitors of the cellular entry process. This review will summarize the recent advances in the mechanisms of JEV cellular entry and membrane fusion.
Animals
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Biomedical Research
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trends
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Encephalitis Virus, Japanese
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genetics
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physiology
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Encephalitis, Japanese
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virology
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Humans
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Virus Internalization
3.Progress in stem cell transplantation for treatment of retinal ganglion cell damage diseases
Ying-Jian, SUN ; Ya-Juan, ZHENG
International Eye Science 2015;(4):630-632
Retinal ganglion cells are crucial in the formation of vision. Injury or death of retinal ganglion cells may lead to irreversibly damage of visual function. Glaucoma, diabetic retinopathy, hypertension, and other blind leading diseases can cause the damage or progressively apoptosis of retinal ganglion cells. Currently, there is no specific treatment to restore vision damage caused by those diseases. Scholars at home and abroad focus on stem cells transplantation in order to recover the visual function of patients. Two categories are mainly involved in stem cell transplantation, one is the replacement therapy based on stem cells, the other is to promote the secretion of some factors to protect ganglion cells through stem cell transplantation. In this review, we aim to summarize the potential of stems cell transplantation to treat retinal ganglion cells related diseases, and discuss the differentiation of different types of stem cells to retinal ganglion cells.
4.Amplification of Full-length mRNA 5′Ends Based on Template-switching Effects
China Biotechnology 2006;0(12):-
"CapFinder" technology,which can be used to clone the full length of 5′ UTR sequence of mRNA,was described.This technology used the terminal transferase activity of certain MMLV RT variants that added 3-5 residues(predominantly dC) to the 3′end of the first-strand cDNA exhibited when MMLV RT reached the 5′cap structure of mRNA.In the reverse reaction system containing GGG oligo,the terminal transferase activity was harnessed by the GGG oligo whose terminal stretch of dG residues can anneal to the dC-rich cDNA tail and serve as an extended template for RT.After RT switch templates from the mRNA template to the GGG oligo,a complete cDNA copy of the original RNA was synthesized with the additional GGG oligo sequences at the end.5′UTR of mRNA can be amplified with GGG oligo as forward primer and a gene-specific reverse primer.5′UTR of Bt toxin receptor E-Cadherin gene in midgut of cotton bollworm was cloned.
5.Research progress of anti-acute marrow leukemia drugs by targeting FLT3
Hui-ya JIA ; Bo YANG ; Xiao-meng ZHANG ; Jian-hong GONG ; Ya WU ; Yan-le ZHI
Acta Pharmaceutica Sinica 2023;58(3):605-615
Acute myeloid leukemia (AML) is a genetic heterogeneous disease in which primordial and juvenile myeloid cells proliferate or accumulate abnormally in bone marrow, peripheral blood and other tissues, resulting in damage to normal hematopoietic function. Studies have shown that about 30% of AML patients have FMS-like tyrosine kinase 3 (FLT3), FLT3 abnormal regulation is closely related to the occurrence and development of AML. At present, FLT3 has become an important target for developing small molecular targeted drugs. Currently, a variety of FLT3 inhibitors and FLT3 degraders have been developed targeting FLT3, and some compounds have exhibited good anti-AML activity. This article summarizes and sorts out the current mainstream drugs for AML therapeutic targeting FLT3, in order to provide a reference for the development and design of AML drugs.
6.Immunophenotypic characteristics of uterinenatural killer cells and helper T cell 1/ helper T cell 2 immunity in the third trimester decidua of preeclampsia patients
Jian-Jun ZHOU ; Ya-Li HU ; Sha HAO ; Ya-Yi HOU ;
Chinese Journal of Obstetrics and Gynecology 2001;0(04):-
Objective To investigate immunophenotypic characteristics of uterine natural killer (uNK)cells and helper T cell 1/helper T cell 2(Th1/Th2)immunity in third trimester decidua in preeclampsia.Methods The proportions of uNK cell subsets,expression of CD_(69)and CD_(94)on uNK cells and Th1/Th2 immunity in decidua were determined in 20 cases of preeclampsia patients and 11 cases of normal term pregnancies by flow cytometric analysis.Results The percentage of CD_(56)~(bright)CD_(16)~-uNK cell subset in preeclampsia patients and the controls was(17.3?11.1)% vs(17.9?16.8)%,that of CD_(56)~(dim) CD_(16)~+uNK cell subset was(16.3?8.7)% vs(16.2?8.8)%;that of CD_(56)~+CD_(69)~+uNK cells was(37.9 ?18.9)% vs(36.8?19.7)%,that of CD_(56)~+CD_(94)~+uNK cells was(34.9?15.2)% vs(32.7?16.2)% and the ratio of CD_(56)~+CD_(69)~+/CD_(56)~+CD_(94)~+was 1.1?0.2,1.2?0.6.No statistical difference was shown in the above values between the preeclampsia patients and controls.The percentage of cytoto xic T cell(Tc)2 cells was significantly lower in the decidua of preeclampsia patients [(3.0?1.0)% vs(4.3?0.9)%,P= 0.001 ],and the ratio of Tc1/Tc2 in preeclampsia patients was significantly higher than that of normal term pregnancies(17.8?3.4 vs 11.8?4.6;P=0.001);the ratio of Th1/Th2 was increased(15.1?2.4 vs 13.2?3.1;P=0.06).Conclusions The immunophenotypie characteristics of uNK cells do not present any significant change in preeclampsia patients.Owing to Tc2 cell decrease,the Th1/Th2 immunity shifts to Th1 type immunity in the decidua,which might contribute to the pathogenesis of preeclampsia.
7.Framework analysis method in qualitative research.
Xing LIAO ; Jian-ping LIU ; Nicola ROBISON ; Ya-ming XIE
Chinese Journal of Integrated Traditional and Western Medicine 2014;34(5):622-626
In recent years a number of qualitative research methods have gained popularity within the health care arena. Despite this popularity, different qualitative analysis methods pose many challenges to most researchers. The present paper responds to the needs expressed by recent Chinese medicine researches. The present paper is mainly focused on the concepts, nature, application of framework analysis, especially on how to use it, in such a way to assist the newcomer of Chinese medicine researchers to engage with the methodology.
Humans
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Medicine, Chinese Traditional
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Qualitative Research
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Research
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Research Design
8.Effect of shenxiong huayu capsule on cerebral ischemia/reperfusion injury and the expression of GAP43 in hippocampal CA1 of rats.
Hai-Ling HUANG ; Jian-Min LI ; Ya-Ning ZHAO
Chinese Journal of Integrated Traditional and Western Medicine 2014;34(2):185-190
OBJECTIVETo explore the effect of Shenxiong Huayu Capsule (SHC) on the cerebral ischemia-reperfusion (IR) injury and the expression of growth associated protein 43 (GAP43) after total cerebral IR in the hippocampal CA1 region of rats.
METHODSTotally 100 male adult SD rats were randomly divided into five groups, i.e., the control group, the model group, the group A (by taking SHC once daily), the group B (by taking SHC twice daily), and the group C (by taking SHC thrice daily), 20 in each group. The total IR model was prepared by improved Pulsinelli's 4-vessel occlusion method. Morphological changes of the hippocampal CA1 region were observed by HE staining at day 1, 3, 7, and 14. The expression of GAP43 in the hippocampal CA1 region was detected using immunohistochemical assay at day 1, 3, 7, and 14. Meanwhile, the behavioral score was determined. The expression of GAP43 in the hippocampal CA1 region was detected using Western blot at day 14.
RESULTSCompared with the control group, the expression of GAP43 increased in the model group, the behavioral score was elevated, degenerated neurons increased, and survival neurons decreased in the model group (all P < 0.05). Compared with the model group, the expression of GAP-43 increased (with the most significant difference seen in the group C, P < 0.01), the behavioral score significantly decreased, degenerated neurons decreased, and survival neurons increased in each HSC group (all P < 0.05). Survival neurons obviously increased at day 14, of which, most number of survival neurons and highest contents of GAP43 protein could be seen in the group C, showing statistical difference when compared with those of the group A and the group B (P < 0.01).
CONCLUSIONSHC had protective effect on total cerebral IR in the hippocampal CA1, which might be associated with increased expression of GAP43.
Animals ; Brain Ischemia ; metabolism ; CA1 Region, Hippocampal ; metabolism ; Drugs, Chinese Herbal ; pharmacology ; GAP-43 Protein ; metabolism ; Male ; Rats ; Rats, Sprague-Dawley ; Reperfusion Injury ; metabolism