2.DISTRIBUTION AND MORPHOLOGY OF NESTIN-POSITIVE CELLS IN HUMAN FETAL LIVER
Jing AN ; Yuanquan CHEN ; Xuemei TIAN
Acta Anatomica Sinica 2002;0(05):-
Objective To observe the morphological and distribution feature of nestin-positive cells in liver during various stages of human fetal development.Methods 10-20 weeks old fetal liver tissues were obtained and fixed for paraffin sections as usual.Digoxigenin-labeled oligo-DNA probe was used for detect nestin by means of in situ hybridization histochemistry(ISHH).Results Nestin-positive cells are small,spherical cells with a large nucleus and sometimes a dual nuclei,and distribute mainly in limiting plate and surround the developing bile duct.Conclusion There are some nestin-positive cells in the liver.They can divide and proliferate and may be a group of cells hided in various tissues during development,which have the same function.They may play an important role in hepatocyte injure repair and tumor occur during the later days.
4.Progress in Treatment for Advanced Gastric Cancer
Jing WANG ; Shaodan TIAN ; Xinyi CHEN
Chinese Journal of Clinical Oncology 2010;37(3):171-175
Gastric cancer is the fourth most common cancer and is the second leading cause of cancer death worldwide. Gastric cancer is usually in advanced stage at diagnosis, without opportunity for curative resection. Chemotherapy is the major treatment for advanced gastric cancer (AGC), and other treatments include palliative surgery, radiotherapy, chemotherapy, biologic and immunologic therapy as well as Chinese medicine. Palliative therapy is used to reduce tumor load or complication occurrence, while radiotherapy is effective for locoregionally advanced gastdc cancer. At present, chemotherapy plays a leading role in AGC treatment and has a palliative effect on symptomatic patients. For advanced or metastatic gastric cancer, chemotherapy has always been the focus of studies. Results of studies of FAX, ECF/DCF regimens and Phrase ill clinical trials of REAL-2, ML17032 and SPIRITS have been released. With the application of EOX, XP, S-1/CDDP, IF, FOLFOX and XELOX regimens, the outcomes of advanced gastdc cancer are improved. However, there is no standard regimen accepted as supedor over others. Biologic and immunologic therapy are beneficial supplements to surgery, chemotherapy and radiotherapy, but are not yet the mainstream. All of these treatments have obvious side effects. Other comprehensive methods are of equal importance, such as Chinese herbal medicine, acupuncture and moxibustion, and psychological intervention. Combined with western medicine, the above methods have certain merits in relieving clinical symptoms, reducing toxicity,increasing effectiveness, improving quality of life, preventing metastasis and recurrence, reversing multidrug resistance of tumor cells, and curing ascites and managing cancer pain.
5.The recent effect of ovary dislocation on ovary function during the operation of cervical squamous carcinoma
Tian-Cheng WANG ; Jing XU ; Tao CHEN ;
Chinese Journal of Primary Medicine and Pharmacy 2006;0(09):-
Objective To study the recent effect of ovary dislocation during the operation of cervical squa- mous carcinoma with stageⅠon ovary function.Methods 12 cases with cervical squamous carcinoma of stageⅠwere treated with surgery.During the operation bilateral ovaries with blood vessels were dislocated the abdominal cavity over the umbilical line through postperitoneum and fixed on the postperitoneum.12 cases were hysterec- tomized simply as the control.The change of ovary function was observed in one year after the operation.Results The levels of FSH and E_2 were decreased in the dislocating group(P
6.Pharmacokinetic Studies of Radix Acanthopanacis Senticosis Suspension
Jing TIAN ; Jianping LIU ; Rui CHEN
Traditional Chinese Drug Research & Clinical Pharmacology 2000;0(05):-
Objective To observe the pharmacokinetic feature of Radix Acanthopanacis Senticosis suspension(RASS). Methods The research was conducted with pharmacodynamic endpoint approach and pharmacodynamic approach and adopted with phagocytic index as pharmacological parameter. Results Pharmacodynamic endpoint approach: K_(el)=0.2d~(-1), K_a=2.5 d~(-1), AUC(S_0)=10.4g?kg~(-1)?d, VRT=19.3d~2.Pharmacodynamic approach: K_(el(ef))=0.1d~(-1), K_(a(ef))=2.9d~(-1), AUC(S_0)_((ef))=62.7(%)?d, VRT_((ef))=43.2d~2. The data obtained by pharmacodynamic approach differed from that by pharmacodynamic endpoint approach, indicating the delay of drug effect. Conclusion Pharmacokinetic Data of RASS are first obtained in this article, which show that pharmacodynamic endpoint approach and pharmacodynamic approach is feasible.
7.Relationship between visceral adipose and cardiovascular damage in the patients with metabolic syndrome
Zhiqiang TIAN ; Jing CHEN ; Zhencheng YAN
Medical Journal of Chinese People's Liberation Army 2001;0(08):-
Objective To analyze the relationship between the distribution of visceral adipose and cardiovascular damage in the patients with metabolic syndrome. Methods 108 in-patients were categorized according to the diseases, they were suffering from into metabolic syndrome group (MS, 70 cases), essential hypertension group (EH, 22 cases), and type 2 diabetes mellitus group (T2DM, 16 cases). The areas of both visceral adipose (VA) and subcutaneous adipose (SA) were measured for all the three groups, and then VA/SA was calculated. The relationship of the above variables with left ventricular mass (LVM), LVM-index (LVMI) intima-medial thickness (IMT) of carotid artery, and myocardial ischemia was analysed. Results Compared with T2DM and EH groups, the area with VA was significantly larger in MS group (P
8.Relationships between the distribution of abdominal adipose tissue and the components of metabolic syndrome
Jing CHEN ; Zhiqiang TIAN ; Zhidan LUO
Medical Journal of Chinese People's Liberation Army 2001;0(08):-
Objective To investigate the relationship between the distribution of abdominal adipose tissue and metabolic abnormality in the patients with metabolic syndrome (MS). Methods 108 patients (MS 70 cases, essential hypertension (EH) 22 cases and type Ⅱ diabetes mellitus (T2DM) 16 cases) were enrolled in this study. The visceral adipose (VA) and subcutaneous adipose (SA) were measured with computerized tomography (CT), the ratio of VA/SA was calculated and the correlation between them was analyzed. Results (1) The VA value in MS group was significantly higher compared to both T2DM and EH groups (P
9.Metformin induced apoptosis in breast cancer cell by decreasing the expression of Foxp3
Wenjun HUANG ; Jian CHEN ; Jing TIAN
Chongqing Medicine 2014;(28):3749-3752
Objective To research the effects of metformin on proliferation and apoptosis in human breast cancer MCF-7 cells and investigate the role of Foxp3 in the effect.Methods The inhibit rate of MCF-7 cells was measured by MTT assay after 48 h metformin treatment(5 mmol/L、10 mmol/L、20 mmol/L).Metformin-induced cell apoptosis was measured by Hoechst 33258 stai-ning and flow cytometry.The expression levels of Foxp3 and caspase-3 mRNA were detected by real-time PCR.Expression of Foxp3 protein was detected by Western blot.Results Metformin markedly inhibited proliferation of MCF-7(P<0.05)compared with control group.And the early apoptotic rates increased to 3.76%,8.96%,and 18.67% with 5 mmol/L、10 mmol/L、20 mmol/L metformin treatment,respectively.Metformin increased caspase-3 mRNA expression levels,and decreased the expression levels of Foxp3 mRNA and protein expression levels(P<0.05,vs.control).Conclusion Metformin could inhibit the proliferation and in-duce apoptosis of MCF-7,and its mechanism maybe related to down-regulated expression of Foxp3.
10.Research Progress of the Regulation Function of Epigenetics on Bone Marrow Mesenchymal Stem Cells.
Chen ZHIHAO ; Shubin FANG ; Jing TIAN
Journal of Biomedical Engineering 2015;32(3):680-683
The regulation of epigenetics on bone marrow mesenchymal stem cells (BMSCs) has been a research hot spot in medical area. This paper mainly summarizes the progress of the regulation of DNA methylation, histone acetylation, small interfering RNA (siRNA) induced gene silence and microRNA (miRNA) on BMSCs. Our analysis shows that the regulation of epigenetics on BMSCs plays a significant role in the repair of bone tissue, nervous tissue and cardiac muscle.
Acetylation
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Bone and Bones
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DNA Methylation
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Epigenesis, Genetic
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Hematopoietic Stem Cells
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Histones
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Humans
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Mesenchymal Stromal Cells
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cytology
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MicroRNAs
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Myocardium
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RNA, Small Interfering
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Wound Healing