Objective To observe the development of hematopoietic stem cell and the apoptosis of ICM(intermediate cell mass) in folic acid deficient zebrafish embryos and investigate the mechanism by which folic acid deficiency induces abnormal hematopoiesis.Method The folic acid deficient zebrafish model was induced by both using the dihydrofolate reductase antagonism methotrexate(MTX) and knock-down dihydrofolate reductase gene.The development of embryos was observed under microscope.The blood cells were detected by O-dianisidine staining.Whole-mount in situ hybridization and real-time PCR were performed to examine the expression of FLK-1,GATA1and GATA2.Apoptosis in intermediate cell mass(ICM) was examined by TUNEL(terminal-deoxynucleotidyl transferase mediated nick end labeling) method.Results The abnormal developments of ICMs were observed both in MTX treated embryos and DHFR knock-down embryos.O-dianisidine staining revealed that folic acid deficiency resulted in the decreasing number of blood cells.In folic acid deficient embryos,the expression of FLK-1、GATA1and GATA2 was reduced and the apoptosis in ICMs was increased.Conclusion The abnormal hematopoiesis in zebrafish induced by folic acid deficiency is related with the increasing apoptosis in ICMs and decreasing expressions of FLK-1,GATA1and GATA2.

An investigation on the chemical constituents of the 90% EtOH extract of Perovskia atriplicifolia led to the isolation of fifteen compounds from the EtOAc fraction. Based on the detailed spectral analysis (MS, 1D and 2D NMR), as well as comparison with the literatures, the structures of compounds 1-15 were determined as cirsimaritin (1), salvigenin (2), syringaldehyde (3), vinyl caffeate (4), 2α, 3α-dihydroxyolean-12-en-28-oicacid (5), 2α, 3α-dihydroxyurs-12-en-28-oicacid (6), niga-ichigoside F1 (2α, 3β, 19α, 23- tetrahydroxyurs - 12-en-28-oicacid- O-β-D- glucopyranoside, 7), sericoside (8), 4-epi-niga-ichigoside F1 (2α, 3β, 19α, 24-tetrahydroxyurs-12-en-28-oicacid O-β-D-glucopyranoside, 9), 2α, 3β, 24-trihydroxyolean-12-en-28-oicacid O-β-D-glucopyranosyl-(1 --> 2) - β-D-glucopyranoside (10), pruvuloside A (11), asteryunnanoside A [2α, 3β, 23-trihydroxyolean-12-en-28-oicacid O-β-D-glucopyranosyl-(1 --> 2)-β- D- glucopyranoside,12], rosmarinic acid methyl ester (13), β-sitosterol (14), and daucosterol (15), respectively. Compounds 1-13 were isolated from the Perovskia genus for the first time. All the compounds were obtained from P. atriplicifolia for the first time.
Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Lamiaceae ; chemistry ; Magnetic Resonance Spectroscopy ; Molecular Structure ; Spectrometry, Mass, Electrospray Ionization

Objective To examine the expressions of FHIT gene and HER_2 in non-small cell lung cancer(NSCLC)and the relationship between the expressions and the clinicopathological features of NSCLC, and to investigate the relationship between FHIT protein and HER_2 expression. Methods FHIT protein and HER_2 expressions in 50 lung cancer cases and 21 adjacent non-cancer tissues were performed by immunohistochemistry. And the positive rates of FHIT and HER_2 were measured. Results The positive rates of FHIT protein were 30.00% in lung cancer tissues. The expression levels of FHIT were significantly lower in lung cancer tissues than that in non-cancer lung tissues (P

Objective The aim of this phase Ⅱ study was to determine the efficacy and safety of combined bortezomib and thalidomide (VT) regime as initial treatment for newly diagnosed multiple myeloma (MM) in China. Methods Thirty-four patients were enrolled in this study and received VT regime up to 21-day cycles. Bortezomib (1.3 mg/m2) was administered intravenously on days 1, 4, 8, and 11, while oral thalidomide ( 100 mg/day) was given from days 1 to 21. The primary end point was clinical response.The secondary end point was safety. Results Among the 34 patients, 20 were male, 14 were female, with a median age of 59 years, and 15 in international stage system (ISS) Ⅲ ,18 in ISS Ⅱ , 1 in ISS Ⅰ . Among them, 28 completed 2 cycles' treatment and achieved an overall response rate (ORR) of 92.9%; 26 were able to complete the planned 8 cycles of therapy. After 8 cycles, the ORR was 100% ( complete response 30. 8%, near-complete response 23.1%, partial response 42. 3%, minimal response 3.8% ). After followed up with a median time of 12 months, the estimated rate without progress of disease was 62%, and the estimated continous remission rate of 12 months was 62%. The median survival time was not achieved. The most common adverse events were mild to moderate ( grades 1, 2). The main toxicities were hematologic (53. 3% ), gastrointestinal ( 40. 0% ), peripheral neuropathy ( 38.0% ), fatigue ( 36. 6% ) and fever (32. 0% ). Conclusions VT regime provides a very high ORR and complete response rate in the treatment of newly diagnosed MM patients. No patients experienced deep venous thrombosis. In conclusion,bortezomib in combination with thalidomide is a very effective regimen for newly diagnosed MM patients and the toxicities are manageable.

Objective: To investigate the efifcacy of supplemental walking training in patients with coronary artery disease (CAD) combining heart failure (HF) under routine medication.
Methods: A total of 80 patients with CAD combining HF were randomly divided into 2 groups: Exercise group,n=40 including 25 male and 15 female at (61.2 ± 9.8) years of age, the patients received additional six-minute walking exercise training based on routine medication and Control group,n=40 including 26 male and 14 female at (58.1 ± 10.9) years of age, the patients received routine medication. All patients were treated for 3 months. Plasma levels of BNP and general conditions at before and after the treatment were compared between 2 groups.
Results:①After 3 months treatment, both groups had signiifcantly improved LVESD, LVEDD, LVEF, plasma levels of BNP and six-minute walk test (except LVESD and LVEDD in Control group), allP<0.05.②Compared with Control group, Exercise group showed obviously improved LVEF, plasma level of BNP and six-minute walk test, allP<0.05.
Conclusion: Walking training may increase the exercise tolerance, which is beneifcial to recover the cardiac function in patients with CAD combining HF in addition to routine medication .

In order to provide effective tool for further studying of the function of HCMV genome, developing of molecular vaccine and diagnostic reagents. Extraction of HCMV mRNA from HF cell infected by HCMV AD169 strain for 96h was reverse transcripted into cDNA, then was cloned into EcoR I-digested lambda gt11. HCMV AD169 strain cDNA expressing library has been constructed after packaging. The volume and the recombination rate of the prime cDNA expressing libraries was 3.6?10 6 and 96%, 168 positive clones of HCMV were screened by immune blotting with anti-HCMV mouse convalescent sera, 34 positive clones were obtained by dot nucleic acid hybridization with DIG-labled HCMV pp65 gene probe. 2 positive clones were amplified by HCMV pp65 all length primer. The PCR product has been tested by southern-blotting.The PCR product was sequenced and was taken as homology comparison by DNASIS software,and the homology is 98%.To lay the foundation of furher cloning,expressing the pp65 gene,further studying of the function of the pp65 prodct.

Objective To investigate the expression of Akt and phosphoryled Akt (p-Akt1) protein in pancreatic carcinoma and to determine the clinical significance. Methods In 74 cases of pancreatic carcinoma and 10 cases of normal pancreatic tissue samples, the expression of Akt and p-Akt1 were detected by immunohistochemical method, and the its relationship with clinicopathologic characteristics and prognosis were analyzed. Results The positive expression rate of Akt and p-Akt1 in pancreatic carcinoma were 87.8% and 83.8% respectively, while there was no expression of Akt and p-Akt1 in normal pancreatic tissue, and the difference was statistically significant (p < 0.05). There was a positive correlation between the expression of Akt and p-Akt1 in pancreatic carcinoma (r =0.274, P =0. 018). The expression of Akt and p-Akt1 was not significantly associated with the age, sex, location, size, pathology stages, lymph nodes metastasis, clinical stages and nerve invasion of the tumor (P >0.05). But the higher expression of p-Akt1 was associated with T stages and TNM staging (p =0. 002). Patients with high intensity of Akt and p-Akt1 expression showed a significantly longer median survival time [(16.0 ± 5.7) month and (23.0 ± 5.5) month, respectively]than those with low intensity expression [(9.3 ± 0.2) month and (11.1 ± 1.8) month (P = 0. 007 and P = 0.004) respectively]. Conclusions p-Akt1 expression is a significant positive prognostic factor for pancreaticcarcinoma and detection of p-Akt1 expression may be of clinical value.

OBJECTIVETo evaluate the feasibility of MRI navigation in identifing the safe surgical margin of the maxillofacial malignancy.

METHODSThe pathology results of the surgical margin identified by the technique of MRI navigation form 20 patients with maxillofacial malignancy were compared with those of 45 patients with maxillofacial malignancy who underwent the routine operation without MRI navigation.

RESULTSThere was no difference between the two groups of patients in age, sex, size of tumor, tumor stages, pathologic diagnosis (P > 0.05). The negative rate of the surgical margin of the lesions treated by surgery with the technique of MRI navigation was significantly lower than that of the lesions treated without MRI navigation (P = 0.007) and highly correspondent with the pathology results.

CONCLUSIONSMRI navigation was helpful in identifying the safe surgical margin of the maxillofacial malignancy.

Aged ; Carcinoma ; pathology ; surgery ; Facial Neoplasms ; pathology ; surgery ; Female ; Humans ; Magnetic Resonance Imaging, Interventional ; Male ; Maxillary Neoplasms ; pathology ; surgery ; Middle Aged ; Monitoring, Intraoperative ; methods ; Sarcoma ; pathology ; surgery ; Surgery, Computer-Assisted ; methods ; Tumor Burden

OBJECTIVETo observe the effects on function rehabilitation of vocal cord after vocal cord polyps surgery treated with acupuncture at Sheng's Four Points of Throat.

METHODSSixty cases were randomly divided into a combined therapy group of Four Points of Throat and medication (group 1, 30 cases) and a medication group (group 2, 30 cases). In group 1 Four Points of Throat were punctured and routine medication was applied; in group 2, only routine medication was applied. The scores of symptom-sign and status of voice were observed and analyzed before and after treatment in two groups.

RESULTSAt 4th day after the surgery, the improvement of the symptom-sign scores in group 1 was more significant than that in group 2 (P < 0.05); and the voice analysis status in group 1 was superior to that in group 2 (all P < 0.05). The total effective rate was 83.3% (25/30) in group 1, which was superior to that of 60.0% (18/30) in group 2 (P < 0.05).

CONCLUSIONThe effect on function rehabilitation of vocal cord after vocal cord polyps surgery treated with the combined therapy group of Four Points of Throat and routine medication is favorable, superior to that with routine medication therapy.

Acupuncture Points ; Adolescent ; Adult ; Aged ; Female ; Humans ; Laryngeal Diseases ; physiopathology ; rehabilitation ; surgery ; therapy ; Male ; Middle Aged ; Otorhinolaryngologic Surgical Procedures ; Pharynx ; physiopathology ; Vocal Cords ; physiopathology ; surgery ; Young Adult

OBJECTIVETo observe the effect of pubic fractures reducted and fixed thorough the punctiform incision approach.

METHODSFrom 2002 to 2005, 10 cases with 18 fractures of pubis rami (8 male and 2 female) were treated with inserting construction plate by the punctiform incision approach. The average age of these patients was 37.2 years (range, 24 to 56 years). The mean duration between injury and operation was 8.7 days (range, 4 to 14 days).

RESULTSInternal fixation for eighteen pubis fractures were accomplished by 28 punctiform incisions. The blood loss for each incision was averagely 30 ml, operation time of each pubic was about 45 minutes. Function restoration was evaluated by Majeed' score and all patients gained excellent result.

CONCLUSIONThe fracture of pubic rami can be fixed sucessfully by punctiform incision approach. It provides smaller incision, less postoperative complications and excellent function rehabilitation.

Adult ; Bone Plates ; Female ; Fracture Fixation, Internal ; methods ; Fracture Healing ; Fractures, Bone ; surgery ; Humans ; Male ; Middle Aged ; Pubic Bone ; surgery