Objective To study the incidence frequency of prothrombin G20210A (FⅡ G20210A)mutation in the patients with pulmonary thromboembolism(PTE)in northeast China,and to clarify the predictive value of FⅡG20210A mutation detection in PTE of the population in northeast China.Methods 60 PTE patients(PTE group) and 80 sex-matched healthy controls(control group)from the same geographic area were selected.All the patients were diagnosed by lung ventilation/perfusion scan and/or multi-slice CT pulmonary angiography(CTPA)as well as medical history.The genome DNA was extracted from the whole blood using alcohol.Polymerase chain reaction (PCR),restriction fragment length polymorphisms(RFLP)analysis with HindⅢ restriction enzyme and sepharose gel electrophoresis were used to identify the F Ⅱ G20210A mutation in PTE group and control group. Results After digested by HindⅢ restriction enzyme,only the fragments of 407 and 99 bp were found in PTE group.The frequency of FⅡ G20210A mutation was 0%,there was no statistical difference compared with contol group(P>0.05).There were no heterozygote and homozygote mutation of FⅡ G202210A gene in PTE group and control group.Conclusion The incidence of FⅡ G20210A mutation in the PTE patients in northeast China is very low,and the detection of FⅡ G20210A mutation may have no predictive value in PTE of the population in northeast China.

Objective To compare the Helicobacter pylori (Hp) eradication rate of different therapies and to explore the effects of Hp eradication on the clinical characteristics of chronic obstructive pulmonary disease (COPD).Methods From December 2006 to December 2009,at China-Japan Union Hospital of Jilin University 89 stable COPD patients with Hp infection were divided into eradication group and non-eradication group.The eradication group was divided into clarithromycin sub group and moxifloxacin sub group.The patients of these three groups all received regular COPD treatment.Esomeprazole,amoxicillin,clarithromycin and colloidal bismuth citrate were used in clarithromycin group.Esomeprazole,amoxicillin,moxifloxacin and colloidal bismuth citrate were used in moxifloxacin sub group.Patients received pulmonary function test,exercise tolerance evaluation,dyspnea scoring and health-related quality of life scoring at recruitment and 12 months after recruitment.The onset frequenly of acute exacerbation of COPD in one year was counted.The data were analyzed by x2 test and t test.Results The Hp eradication rate of clarithromycin sub group (48.4 ％,15/31) was lower than that of moxifloxacin sub group (87.1％,27/31),and the difference was statistically significant (x2 =4.22,P=0.032).There was no significant difference percentage of forced expiratory volume in first second to forced vital capacity in (FEV1％) predicted value between 27 cases in non-eradication group and 53 patients with successful Hp eradication (t=0.677,P=0.265).Of 53 patients with successful Hp eradication,the 6-min walking distance,Borg dyspnea score and saint George's respiratory questionnaire (SGRQ) score were improved significantly (t =1.884,1.877 and 1.773 respectively; P=0.032,0.025 and 0.034 respectively),and there was no improvement in 27 non-eradication patients.There was significant difference in the frequency of COPD acute attack between 53 patients with successful Hp eradication (1.2 times) and non-eradication group (1.9 times) (t=1.812,P =0.034).Conclusions Hp eradication therapy with moxifloxacin in COPD patients reached higher Hp eradication rate.Hp eradication in COPD patients with Hp infection can improve the exercise tolerance of patients,relieve dyspnea,improve quality of life and reduce the frenquency of acute attacks.

The preparation and application of universal group O donor red blood cells (RBC) are a trend of future transfusion medicine. This article reviewed the technologies for producing universal RBC in recent years. One of them is modification of blood group antigens, which includes two basic methods. One of these two methods is enzymatic cleavage of the terminal immunodominant sugars from carbohydrate chains on the membrane of group A or/and group B RBC, in order to produce so-called enzyme-converted group O (ECO) RBC. ECO RBC have been produced from whole units of B RBC, which then survived normally when given to type A and O individuals in clinical trial. Because of the complexity of group A antigens, conversion of group A RBC (especially A1 RBC) to group O RBC is more difficult. Recently, a new bacterial glycosidase efficiently cleaving antigens on the surface of both A₁ and A₂ RBC has been obtained. Another method is pegylation, which camouflage the antigens on the surface of RBC with non-immunogenic molecules such as polyethylene glycol (PEG) in a non-specific way, to provide O, minor antigen negative phenotype RBC. The second technology is generating universal RBC from stem cells (such as hematopoietic stem cells, human embryonic stem cells) and human dermal fibroblasts, which will provide a new resource for blood supply. Great progress has been made, but a number of challenges still remain for using them in clinical transfusion, including scale-up, effectiveness and safety of prepared RBC. However, these researches will provide solutions for the problems in current transfusion, such as blood supply shortage, blood borne disease and emergency blood transfusion, and enhance the safety of clinical transfusions in the near future.
ABO Blood-Group System ; Cell Culture Techniques ; Embryonic Stem Cells ; Erythrocyte Count ; Erythrocyte Transfusion ; Erythrocytes ; Hematopoietic Stem Cells ; Humans

OBJECTIVETo explore the risk factors of mild cognitive impairment (MCI).

METHODSA case-control study including 97 MCI patients and 143 cognitive normal controls (NC) in Chinese PLA General Hospital was conducted. The cases and controls were matched for age, gender and occupation. The relationship between MCI and various factors was analysed by univariate and multivariate analysis.

RESULTSResults data from univariate analysis showed that the history of coronary heart diseases, stroke, anaemia, and the education level had significant differences between NC and MCI patients. Multivariate analysis confirmed that the history of coronary heart diseases, stroke, anaemia and the education level were significantly related to MCI and their ORs (95% confidence interval) were 2.21 (1.18 - 4.14), 2.18 (1.20 - 3.98), 4.63 (1.79 - 11.97), 0.75 (0.58 - 0.97) respectively.

CONCLUSIONThe history of coronary heart diseases, stroke and anaemia were independent risk factors of MCI and high education level seemed to be a protective factor of MCI.

Anemia ; complications ; Case-Control Studies ; China ; Cognition Disorders ; etiology ; Coronary Disease ; complications ; Educational Status ; Humans ; Multivariate Analysis ; Odds Ratio ; Risk Factors ; Stroke ; complications

IgG4-related disease (IgG4-RD) is a newly recognized fibro-inflammatory condition of autoimmune etiology in recent twenty years, mainly manifesting as mass-forming lesions in single or multiple organs. In the past, it was often missed or misdiagnosed as inflammation or tumor. Patients may die from multiple organ failure due to end-stage fibrosis if they are not treated promptly. However, the number of clinically confirmed cases has gradually increased with the improvement of diagnostic level in recent years, and these patients have benefited greatly after receiving early treatment. Although patients generally respond well to traditional immunosuppressors including glucocorticoids and disease-modifying anti-rheumatic drugs, refractory and recurrent cases, even patients with glucocorticoid contraindication are common. Important mechanistic insights have been derived from studies of B-cell depletion therapy, but greater awareness of the pathophysiology of IgG4-RD is still badly needed to identify novel therapeutic targets. In this article, we reviewed the pathogenesis progress and promising therapy of IgG4-RD to seek better clinical management of IgG4-RD.

The in itiation and progression of periodontal disease were reported to be the results of complicated interactions between specific subgingival bacteria and host immuno-inflammatory response. As a part of the immune and defense system mechanisms of the host, leptin may have a protective effect on periodontal tissues. We summarize the latest progress in the relationship between leptin and periodontitis.

OBJECTIVETo investigate the clinical effect of atlantoaxial pedicle screw internal fixation for treatment of atlantoaxial dislocation.

METHODSSixteen patients with atlantoaxial dislocation were treated from Dec. 2005 to June 2007, included 10 males and 6 females, aged from 38 to 45 years old (means 40.5 years). Among them 12 patients combined with nerve injury, according to ASIA grade: there were 3 cases in grade B, 5 cases in grade C, 4 cases in grade D. All patients received preoperative CT, radiograph and skull traction. Intraoperative posterior approach general spine pedicle screw-rod orthopaedics fixation system used and iliac bone block were implanted in space of posterior atlantal arch and axial vertebral plate. The outcome and complications were observed in the near future.

RESULTSThere was no vascular or neural injury found. The patients were followed up for 12 to 24 months (means 18 months). All head pain, acid storm symptoms were improved after operation. According to the Odom's clinical efficacy evaluation standard, 12 cases were excellent, 4 were good. Eleven cases of 12 with nerve injury recovered significantly. By ASIA classification: 1 cases was in grade B, 2 cases were in grade C, 5 cases were in grade D, 4 cases were in grade E. No looseness or breakage of screw occurred. Bony fusion was achieved in all cases.

CONCLUSIONPosterior approach atlantoaxial pedicle screw internal fixation have the advantages of direct screw placement, short-segment fusion, intraoperative reduction, fixation reliable, high fusion rate, and it can restablish the upper cervical vertebrae stability and help to recover the spinal cord and nerve function.

Adult ; Atlanto-Axial Joint ; diagnostic imaging ; injuries ; physiopathology ; surgery ; Bone Screws ; Female ; Fracture Fixation, Internal ; instrumentation ; Humans ; Joint Dislocations ; diagnostic imaging ; physiopathology ; surgery ; therapy ; Male ; Middle Aged ; Tomography, X-Ray Computed ; Treatment Outcome

OBJECTIVETo study the effect of Radix Scutellariae on the growth, metabolism of Porphyromonas endodontalis (P.e), as a preparation for studying the mechanism of Radix Scutellariae in treating pulp and periapical diseases.

METHODSP.e was chosen as the experimental bacteria. Radix Scutellariae was extracted by means of reflux with 80% ethanol. The value of MIC of Radix Scutellariae was measured by minute amount serial dilusion test, and the production of butyrate was measured by high liquid chromatograph(HPLC).

RESULTSRadix Scutellariae could inhibit the growth of P.e, of which the MIC was 100 mg/L. Following the increase in concentration of Radix Scutellariae, the amount of butyrate decreased to (3.527 +/- 0.009) mg/L, (3.048 +/- 0.005) mg/L, (2.490 +/- 0.011) mg/L, (2.209 +/- 0.016) mg/L, respectively (P < 0.05).

CONCLUSIONRadix Scutellariae could inhibit the growth and metabolism of P.e and might be an effective agent in treating pulp and periapical diseases.

Bacteroidaceae Infections ; microbiology ; Butyrates ; analysis ; Chromatography, High Pressure Liquid ; Dental Pulp ; microbiology ; Drugs, Chinese Herbal ; pharmacology ; Humans ; Microbial Sensitivity Tests ; Porphyromonas endodontalis ; metabolism ; Scutellaria ; chemistry

OBJECTIVETo observe therapeutic effect of Tiaoshen Fuyin acupuncture therapy on cerebral infarction-induced Broca aphasia.

METHODSSixty cases were randomly divided into an observation group and a control group, 30 cases in each group. The observation group were treated with Tiaoshen Fuyin acupuncture therapy and language training, and the control group with simple language training. For the acupuncture treatment, Sishencong (EX-HN 1), Benshen (GB 13), Shenting (GV 24), Lianquan (CV 23), Xinshu (BL 15), Shentang (BL 44), Shendao (GV 11), Lingtao (HT 4) were selected and language training included training of phonatory organs in mouth, the mouth shape, sound, spoken language expression and practical exchange ability. They were treated for 5 therapeutic courses. Language examination was conducted once each before and after treatment with "Aphasia Battery of Chinese" (ABC method).

RESULTSThe therapeutic effect of Tiaoshen Fuyin acupuncture therapy combined with language training was better than that of simple language training.

CONCLUSIONTiaoshen Fuyin acupuncture therapy combined with language training can significantly improve language function and increase life quality in the patient of cerebral infarction-induced Broca aphasia.

Acupuncture Therapy ; methods ; Aged ; Aphasia, Broca ; therapy ; Cerebral Infarction ; complications ; Female ; Humans ; Language Therapy ; Male ; Medicine, Chinese Traditional ; Middle Aged

Acute traumatic spinal cord injury (SCI) represents one of the most devastating injuries that afflict the human body. Ascorbic acid ( AA) plays an important role in mammalian central nervous system, especially in SCI. In this study, the change of AA concentration after SCI was investigated by using an on-line electrochemical method integrated with in vivo microdialysis. A microdialysis probe (2 mm in length) was implanted into the spinal cord of an anesthetized rat (Thoracic-10). Microdialysis perfusate (2 μL/ min) was collected in the sample loop of an on-line injector for direct injection onto a glassy carbon electrode which was modified with the heat-treated single-walled carbon nanotubes (SWNTs). Normal ascorbic acid concentration in the extracellular fluids of spinal cords was (26. 17 ± 1. 25) μmol/ L (n =8). The experimental spinal cord injury, induced by a lesion at T-10, significantly increased the extracellular ascorbic acid levels to (53. 24± 1. 95) μmol/ L (n =8). This study provides the experimental evidence on the essential roles of ascorbic acid in spinal cord injuries.