Objective To investigate the incidence changes, clinical characteristics and pregnant outcomes of pernicious placenta previa. Methods A retrospective cohort analysis on 316 cases with placenta previa in the Peking University First Hospital from January 2008 to December 2014. The research group were 60 cases with the patients of placenta previa with the history of cesarean section, and the control group were placenta previa without the history of cesarean section. Compared with the incidence, intraoperative blood loss, the pregnancy outcomes and so on. Results (1) The average incidence rate of placenta previa during the past 7 years was 10.96‰ (316/28 837). And the cases of pernicious placenta previa was 60 (2.08‰, 60/28 837), the incidence of pernicious placenta previa was rising from 2008 to 2014 (0.91‰-3.08‰). (2) There were 145 cases of placenta privia had been translation from other hospitals in the past 7 years. The referral rate of pregnant women with placenta previa was 45.9%(145/316), and the referral rate of pernicious placenta previa (63.3%, 38/60) was significantly higher than that of non-pernicious placenta previa group (41.8%, 107/256; χ2=9.080, P=0.003). Referral the outcomes of these patients were good, and no maternal death occurred. (3) The placenta in the research group were mainly adhered in the front wall of the uterine, and the incidence was 38.5%(15/39), higher than that in the group of non-pernicious placenta previa (12.1%, 21/174; χ2=57.636, P<0.01). The incidence rate of complicated placenta increased in research group was 53.3% (32/60), higher than that in the group of non-pernicious placenta previa, compared with the control group, there was significant difference (15.6%, 40/256; χ2=39.041, P<0.01). (4) The incidence of blood loss was more than 1 000 ml, blood transfusion rate, the rate of hysterectomy and the rate of asphyxia of newborn in the research group were respectively 41.7% (25/60), 38.3%(23/60), 8.3%(5/60), 15.0%(9/60), and the incidence of the group of non-pernicious placenta previa were respectively 4.7%(12/256), 12.9%(33/256), 1.2%(3/256), 8.6%(22/256), compared those in other two groups, there were not significant difference (P<0.05). Conclusions The incidence rate of placenta previa increased year by year, patients with placenta previa has a history of cesarean section often combined with placenta in anterior wall of the uterus, and often with poor pregnancy outcomes. Hierarchical referral system is an effective means to reduce the mortality of the pernicious placenta previa.

Impotence is one of the more common and serious symptom type of male sexual disturbance.It demonstrates by domestic sampling investigation that about more than 10% of male adult have impotence,and the incidence of impotence goes higher with the growing of age.Warming and invigorating kidney-yang has been the main therapy method for treating impotence.Through years of clinic practices,the treatment for impotence from liver has achieved satisfied effects.

[Objective]Analyzing clinical experience and academic view of Pro. LIAN Jianwei for the treatment of eructation in order to completely learn and master his experience.[Method] Analyzing 4 belching cases of Pro. LIAN, and combining his therapeutic experience and view. [Result] According to the view of Pro. LIAN Jianwei, there are 4 common types in clinic, the type of accumulation in stomach and intestine, the type of spleen and stomach deficiency, the type of liver qi stagnation, the type of liver and spleen disharmony. Promoting digestion and harmonizing stomach to treat the type of food accumulation in stomach;benefiting qi and strengthening spleen to treat the type pf spleen and stomach qi deficiency;smoothing liver and regulating qi to treat type of liver and stomach disharmony; regulating liver and spleen to treat type of liver and spleen disharmony;eliminating damp to treat type of spleen deficiency with damp;activating blood to treat stasis caused by prolonged diseases. Prescriptions of Pro. LIANbased on methods which changed with syndromes. He insisted that treatments base on differentiation;prescriptions base on methods, which make effect well. [Conclusion] It is worthy for our students to learn and imitate clinical experience and academic view of Pro. LIAN Jianwei for the treatment of eructation.

Angiotensin II ; pharmacology ; Calcium ; metabolism ; Cell Hypoxia ; drug effects ; physiology ; Cells, Cultured ; Endothelial Cells ; drug effects ; metabolism ; physiology ; Humans ; Membrane Potential, Mitochondrial ; drug effects ; physiology ; Oxygen ; metabolism

Angiolymphoid Hyperplasia with Eosinophilia ; pathology ; Child, Preschool ; Humans ; Male

BACKGROUND: Mesenchymal stem cells are few in human bone marrow, and their number will decrease with aging or body weakening, so a large amount of amplification is necessary. However, the biological characteristics of human mesenchymal stem cells of each passage remain poorly understood.OBJECTIVE: To analyze and compare the biological characteristics of each passage of bone marrow-derived mesenchymal stem cells (MSCs) so as to provide a basis for clinical demands of tissue engineering.DESIGN,TIME AND SETTING: Cytological observation in vitro. The experiment was performed at the Department of Orthopedics and Central Laboratory, Dongzhimen Hospital, Beijing University of Chinese Medicine from March to October 2008.MATERIALS: From bone marrow of patients with non-hematopoietic disease, MSCs were provided by Department of Orthopedics, Dongzhimen Hospital, Beijing University of Chinese Medicine.METHODS: Bone marrow was collected form posterior superior iliac spine of patient, MSCs were isolated and cultured by Percoll method. When the cells were confluent at 90%, they were trypsinized and observed by inverted miscroscopy. The second passage of cells were collected for index detection.MAIN OUTCOME MEASURES: Cell morphological characteristics and immunophenotype; cell activity was detected by MTT; cell division and apoptosis in the proportion of necrosis were analyzed by flow cytometry analysis.RESULTS: The passaged MSCs exhibited uniform appearance in fusiform shape, and their growth was slowed down after 9 passages, exhibiting cytoplasm vacuolization and body enlarging. The second passage of MSCs was positive for CD44, CD106,and CD105, but negative for CD34 and CD45. MTT values peaked at passage 9, and gradually decreased since passage 10. At passage 11, the number of MSCs at division stage was increased, but from the sixth passage, the number of apoptotic cells increased significantly, reaching more than 60% at passage 8.CONCLUSION: According to biological characteristics analysis of MSCs at each passage, the third to the sixth passage cells are recommend for clinical therapy.

Objective To study the expression of CD4+, CD25+ regulatory T cells and its significance in carcinoma of stomach. Methods Flow cytometry was used to quantify and analyze the results of CD4+, CD25 + regulatory T cells and CD8+ T cells in 76 patients with gastric cancer. Results CD4+, CD25+ regulatory T cells expression in gastric cancer tissue, adjacent tissues and control group are (1.2±0.9) %, (6.4±1.1) % and (4.1±0.8) %. The results have statistical significance (P<0.05). CD8+ T cells markedly de-creased in gastric cancer tissue, while CD4+ , CD25+ regulatory T cells increased. But this manifest did not happen in adjacent tissues.Conclusion CD4+, CD25+ regulatory T cells suppress gastric cancer though inhibiting CD8+ T cells.

Objective To study the prevalence of metabolic syndrome (MS) in patients with type 2 diabetes according to three different diagnostic criteria and the effects of accumulation of MS components on blood lipid profile and to explore possible causes of their increased morbidity of cardiovascular diseases. Methods Components of MS and blood lipid profile were observed cross-sectionally in 157 patients with type 2 diabetes and analyzed using recommended diagnostic criteria by the World Health Organization (WHO, 1999), the National Cholesterol Education Program-Adult Treatment PanelⅢ( NCEP-ATPⅢ, 2001) and the Chinese Diabetes Society under Chinese Medical Association (CDS, 2004). Results Prevalence of MS was 73. 9% , 49. 7% and 52. 9% , and that of dyslipidemia was 54. 8% , 61. 2% and 54. 8% , with the criteria by WHO, NCEP-ATPⅢand CDS, respectively. Dyslipidemia was included in the most common combinations of MS. Blood level of triglycerides increased significantly, that of high density lipoprotein cholesterol ( HDL-C) decreased significantly, and size of low density lipoprotein cholesterol (LDL-C) particles decreased with the increase of the number of MS components, with a more significant coefficient of correlation by the criteria of CDS than that by the other two criteria. Conclusions In patients with type 2 diabetes, prevalence of MS could be more than 50% , most of them complicated with dyslipidemia, one of the most common components of MS, including elevated triglycerides, decreased HDL-C and decreased size of LDL-C particles, which could easily cause cardiovascular disease. The criteria by CDS could reflect the change in blood lipid profile in Chinese population more objectively.

Objective To investigate the developmental characters of neural stem cells(NSCs) in occipital of cortex from human fetal brain at different age.Methods Ninety cases of embryoes at gestational age 16-32 weeks and by induction of labor with water bag were collected for determining distribution,shapes,growth modes and the number of NSCs in the occipital of cortex with immunohisto- chemical method under light microscope.Results It was noted that NSCs existed in the occipital of cortex from human fetal brain at different ages.NSCs mainly distributed in layers of cone cells and inner granule cells.NSCs existed in the occipital of cortex of different fetal age included middling round cells,NSCs had enations from 0 to 1.Nucli were larger than plasm.Each NSC had nucleoli from 2-4 and rarefaction chromatin.Most of NSCs distributed in three growth modes including crowd,cluster and clone,occasionally with a single growth mode among other nerve cells.There were no differences including distribution,shapes,growth modes and the number of NSCs in the occipital of cortex between groups,but,NSCs gradually decreased with increasing of age.Conclusion NSCs exists in the occipital of cortex from different gestational age,and the number of NSCs decreases with increasing of age.

AIM: To observe the effects of hypoxia on the levels of nitric oxide (NO), endothelin (ET-1) and the expression of inducible nitric oxide synthase (iNOS) mRNA in human umbilical vein endothelial cells (HUVECs), and further investigate the mechanism of hypoxic pulmonary hypertension. METHODS: On the basis of the HUVECs culture model, the methods of nitrate reductase and radioimmunoassay were used to determine the changes of NO and ET-1 in the medium secreted by HUVECs, and the expression of iNOS mRNA was analyzed by semi quantitative RT-PCR after exposure to hypoxia (3% O_2) for 6, 12 or 24 h. RESULTS: The contents of NO_2-/NO_3-and ET-1 in hypoxia group in the medium was significantly higher than that in control group at different time points (P