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Objective:To observe the expression, correlation and significance of chemokine (C-X-C motif) ligand 12 (CXCL12) and chemokine (C-X-C motif) receptor 4 (CXCR4) in endometrium and myometrium of adenomyosis.Methods:Totally 38 patients were selected in this study, who underwent hysterectomy for adenomyosis at Beijing Obstetrics and Gynecology Hospital from October 2017 to December 2018 as the adenomyosis group, and, in the same period, selected 31 patients with cervical intraepithelial neoplasia Ⅲ or cervical cancer undergoing hysterectomy served as control group. The expression levels of mRNA and protein for CXCL12, CXCR4 in the endometrium and myometrium of the two groups were detected by immunohistochemistry and real-time PCR.Results:(1) The protein levels of CXCL12 and CXCR4 in endometrium in uterus with adenomyosis (0.229±0.025 and 0.226±0.016) were significantly higher than those in endometrium in uterus without adenomyosis (0.153±0.018 and 0.178±0.026); compared with each other, the differences were statistically significant (all P<0.05). And the expressions of CXCL12 and CXCR4 proteins in uterine myometrium of adenomyosis were 0.222±0.045 and 0.126±0.058, respectively, which were higher than those in the control group (0.091±0.029 and 0.099±0.020); compared with each other, the differences were statistically significant (all P<0.05). (2) The expression levels of CXCL12 and CXCR4 mRNA in endometrium of patients with adenomyosis were 6.31±0.12 and 8.49±0.21, respectively, which were higher than those in the control group (1.23±0.10 and 1.36±0.13); compared with each other, the differences were statistically significant (all P<0.05). Moreover, the expression levels of CXCL12 and CXCR4 mRNA in myometrium of patients with adenomyosis were 9.11±0.12 and 8.45±0.16, respectively, which were higher than those in the control group (1.18±0.08 and 1.46±0.13); compared with each other, the differences were statistically significant (all P<0.05). (3) In endometrium and myometrium of uterus with adenomyosis, CXCL12 and CXCR4 mRNA expression levels were positively associated ( r=0.478, 0.542, all P<0.05). Conclusions:The levels of CXCL12 and CXCR4 in the endometrium and myometrium of adenomyosis are increased and positively correlated. The two chemokine may be involved in the development of adenomyosis.
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Objective This study aims to explore the characteristics of gender and age in six different suicide methods in urban area of China. Methods We collected 548 suicides from Shanghai, Jinhua, Wuhan, Loudi and Duyun, and then analyzed the age and gender characteristics in each suicide method. Results In the age characteristics, the mean age for jumping and hanging was oldest (about 55 years old), followed by drowning and hanging (about 49 years old), oral intake poisoning was much younger (about 49 years old), while carbon monoxide poisoning was youngest (about 37 years old). In the gender differences, male were more than females in suicides by sharp object (52:24), hanging (67:33) and jumping (55:45), while females were more than males in suicides by drowning (58:42). Conclusion The age and gender difference was eminent in different suicide methods. Carbon monoxide poisoning was the youngest age group in suicides and males involved more than females in suicides by mechanical methods.
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Objective To explore the value of PCR for analyzing the pathogenic spectrum of bloodstream infection(BSI)in chil-dren with blood disease,and to provide a new thought for epidemiological survey of BSI.Methods A total of 80 children with blood disease in hematology department with suspected bacterial infections were recruited in the study,whose blood samples were collect-ed and detected by using blood cultivation(BC)and 16 S rDNA-PCR.The results obtained by the two methods were compared.Re-sults Among the 80 children,the positive rate of BC and PCR were 8.8% and 20.0%,respectively.There was significant differ-ence between the two methods(χ2 =5.82,P <0.05).Gram-positive bacteria and Gram-negative bacteria accounted for 68.7% and 31.3% respectively in 16 bacteria.The predominant pathogen was Staphylococcus epidermidis (31.3%).Conclusion Compared with BC,16 S rDNA-PCR and sequencing provide a new way for analyzing the pathogenic spectrum of BSI,which might be effective for epidemiological investigation.The pathogens of BSI are mainly Gram-positive bacteria in children of hematology department,and Staphylococcus epidermidis is the most common pathogen.
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N6-(2-Hydroxyethyl) adenosine, HEA (1), an active ingredient isolated from cultured mycelia of cordyceps species which is a famous traditional tonic in China, showed brain protective, sedative hypnotic activity in pharmacological tests. In order to explore novel non-benzodiazepine sedative-hypnotic agents, HEA was treated as the lead compound. Twenty three target compounds were designed and synthesized. Their chemical structures were characterized by 1H NMR, MS and elemental analysis. Pharmacological test in vivo showed that target compounds 8, 4, 13 were more active than HEA on locomotor and gasping activities of mice. Structure-activity relationships showed that the ribose moiety at N-9 position of adenine base was critical for activity.
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Objective To investigate the effects of recombinant human granulocyte colony stimulating factor (rhG-CSF) therapy on pulmonary hypertension,and its influence on number and functions of circulating endothelial progenitor cells (EPCs) in rats.Methods Eight week old Sprague-Dawlay rats were randomized into model group,treatment group and control group (8 rats in each group).The rats in model group and treatment group were treated with single subcutaneous injection of 1％ monocrotaline (50 mg/kg) to induce pulmonary hypertension models,while the control group was treated with phosphate buffered saline.Five days later,the rats in treatment group were administrated with 50 μg/(kg· d) rhG-CSF for 3 days.On day 21,peripheral blood was collected from caudal vein in all groups,and the percentage of EPCs in 100 000 mononuclear cells was evaluated by flow cytometry.Right ventricular systolic pressure was assessed,and the pathological changes of lung tissue and pneumoangiogram were observed by HE staining.Meanwhile,peripheral mononuclear cells collected from caudal vein were separated and cultured in vitro for EPCs.The cell ffunctions as proliferation,adhesion and migration ability were assessed.ANOVA and LSD test were applied as statistical analysis methods.Results (1) The right ventricular systolic pressure of rats in model group was higher than that in the controls [(48.13 ± 2.85) mm Hg vs (27.88 ± 3.04) mm Hg,t=2.016,P＜0.01],the lesion of endothelial cells in pulmonary arteriolar was evident,and the vessel wall was thickened.The pulmonary artery pressure of rats in the treatment group [(30.38 ± 2.83) mm Hg] was lower than that in the model group and close to the level of control group (t=0.376,P＞0.05) with mild pulmonary pathological changes.(2) The percentage off peripheral blood EPCs in mononuclear cells in the model group was decreased as compared to the control group [(0.016±0.007) ％ vs (0.031±0.011) ％,t=2.617,P＜0.01].After administration ofrhG-CSF,the EPCs in treatment group [(0.042±0.013) ％] was increased evidently as compared to the model group (t=4.325,P＜0.01) and the control group (t =1.942,P＜0.05).(3) The proliferation,adhesive and migrated cells of EPCs in model group were 0.49 ± 0.04,(6.93 ± 1.47) cells/HPF and (7.22±1.53) cells/HPF,lower than those in control group [0.68±0.07,(11.05±1.73) cells/HPF and (12.58±2.15) cells/HPF] and treatment group [0.63±0.06,(12.35±1.82) cells/HPF and (12.97±2.84) cells/HPF],the differences were statistically significant(all P＜0.05).Conclusions rhG-CSF may be effective in treating pulmonary hypertension through up-regulating the number and function of circulating EPCs in rat model of pulmonary hypertension.
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Objective To evaluate the safety of mefformin in the treatment of elderly type 2 diabetes mellitus(T2DM). Methods Two hundred and forty-three cases of elderly T2DM hospitalized from Jan.1996 to Dec. 2006 were reviewed; the changes of fasting blood glucose(FBG), postprandial blood glucose (PBG), glycosylated hemoglobin (HbA1c), liver and renal function and blood lactic acid were evaluate before and after treatment. Results The mean time of treatment with mefformin was (6.6±3.9) years (3 months-21 years)in these 243 cases. The levels of FBG, PBG and HbAlc significantly reduced after treatment with mefformin only in 43 cases (17.7%), mefformin combined with other oral hypoglycemic drugs in 124 cases (51.0%) and mefformin combined with insulin in 76 cases (31.3%). There was only 18.1% of the cases with normal range ( > 80 ml/min) of creatinine clearance rate (Ccr), and 25.8% of the cases with Ccr≤50 ml/min. The liver and renal function as well as the blood lactic acid had no significant change after treatment no matter in total cases or in different groups separated by Ccr.Conclusions Mefformin is safety in the treatment of elderly T2DM patients. Ageing is not the contraindication of mefformin. To the patients with high risk, we should monitoring the level of blood lactic acid.
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BACKGROUND: Recently, researchers separate neural stem cells (NSCs) from neural system. As the progenitor of nerve cell and glia cells, NSCs have strong ability of self-renewal and proliferation, and play a very important role in repair process after nerve injury. OBJECTIVE: To review the repairing effect of NSC transplantation on hypoxic-ischemic encephalopathy. RETRIEVAL STRATEGY: Using the "Neural stem cells, brain, hypoxic-ischemic", we searched PubMed database for related articles published in English between 1993 and 2007. 131 articles were collected, and after the first trial, only articles ① related to neural stem cell transplantation for brain injury, and ②published in recently or in authoritative journals were selected. Repetitive researches were excluded. LITERATURE EVALUATION: The articles were about the studies of NSCs and randomized and controlled experiment for hypoxic-ischemic brain injury. Thirty-three English articles were included involving the biological characteristics of NSC, distribution, separation and culture in vitro, and the basic experiment or clinical research about the repair of hypoxic-ischemic brain injury by NSC. Of these articles, there are 7 review articles, and the others were about clinic or basic experiment researches. DATA SYNTHESIS: Researches show that after transplantation NSC can survive in host, furthermore, it proliferates and differentiates to repair the configuration and function of injured brain area. Even though we have achieved much in NSC transplantation for brain injury, yet there are many problems to be resolved, such as NSC source and conservation, the control mechanism of differentiation and proliferation when NSC is cultured in vitro. In addition, the amount or functional activity of NSCs acquired is lower, and the molecular biological features of cells in repaired tissue are uncertain. CONCLUSION: As a kind of ideal seed cell, NSC provides an approach for the repair of hypoxic-ischemic brain injury, and starts a new era of clinic therapy by stem cells.
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Objective It is to study the influence of atorvatatin on serum C-reactive protein(CRP)level in acute cer- ebral infarction patients and to analyze its clinical significance.Methods 62 patients with acute cerebral infarction di- agnosed by CT or MRI were chosen and divided into two groups randomly.Both the groups were treated with normal method and the treatment group was given atorvastatin 20mg per day.Serum CRP levels in the two groups were measured by immunnturbidimetry within24h after final diagnosis and at two weeks the level decreased obviously in treatment.Re- slllts Serum CRP levels all increased in the patients.After treatment for two weeks the level decreased obviously in treatment group.The difference was significant compared with control group.Conclusion Atorvastatin can markedly reduce the serum CRP level in acute cerebral infarction patients and has important significance for the pathogenetic condi- tion change and prognosis of cerebral infarction.