OBJECTIVETo study the influence of bone marrow mesenchymal stem cells (MSCs) transplantation on hypoxic pulmonary hypertension (HPH) in rats.

METHODSSD rats MSCs were separated, cultivated, identified and labeled by the green fluorescence protein (GFP) gene virus and transplanted in vitro. Healthy male SD rats were randomly divided into four groups: Normal control group (NC group) and HPH group (eight rats respectively), HPH+ MSCs transplantation group and HPH+ VEGF+ MSCs transplantation group (twenty-four respectively). The test employed atmospheric intermittent low oxygen method to establish the rat model of pulmonary hypertension and stem cells were transferred and transplanted. The rats' mean pulmonary artery pressure (mPAP) was observed; right ventricular hypertrophy index (RVHI) was calculated; the morphological change of lung small artery in various groups of rats was observed under the microscope; the distribution of lung small artery and adenovirus transfection fluorescently labeled MSCs was observed under a fluorescent microscope after 7, 14 and 28 days when stem cell was transplanted.

RESULTSFor NC group, the mPAP (mmHg) was 15.5 +/- 1.5 after twenty-eight days while the mPAPs for HPH , MSCs and MSCs+ VEGF were 26.1 +/- 1.9, 21.6 +/- 2.7 and 20.1 +/- 2.9 respectively which were apparently higher than that of NC group (P < 0.01) and compared with HPH group (P < 0.01), which declined clearly. There was no significant difference between MSCs and MSCs+ VEGF. After twenty-eight days, RVHI for NC group was 0.28 +/- 0.02 while the RVHI for HPH, MSCs and MSCs + VEGF were 0.43 +/- 0.07, 0.34 +/- 0.03 and 0.35 +/- 0.01 respectively which was apparently higher than that of NC group (P < 0.01) but which was clearly lower than that of MSCs and MSCs+ VEGF (P < 0.05) and there was no significant difference between MSCs and MSCs + VEGF. For HPH group, pulmonary arteriole wall became apparently thicker, the lumen became significantly narrow and nearly obstructed after twenty-eight days, the endothelial cells were incomplete; compared with HPH group, pulmonary arteriole wall of MSCs group became thin, the lumen was smooth and the completeness of endothelial cells was improved. Whereas for MSCs and MSCs + VEGF, these changes were not significantly clear.

CONCLUSIONAfter MSCs transplantation, mPAP and RVHI decline sharply and lung small artery remodeling is improved which partially reverses HPH process; there is no significant difference between VEGF together with MSCs transplantation group and pure MSCs.

Animals ; Disease Models, Animal ; Hypertension, Pulmonary ; etiology ; metabolism ; surgery ; Hypoxia ; complications ; Male ; Mesenchymal Stem Cell Transplantation ; Rats ; Rats, Sprague-Dawley ; Vascular Endothelial Growth Factor A ; pharmacology

Cell immobilization is a new biotechnology The definition, classification, and carrier selection of cell immobilization are presented in details The technique is efficiently applied to treating strength organic wastewater, nutrient and heavy metals removal of wastewater, as well as hardly biodegradated wastewater It has a widely applied prospect in wastewater treatment

Objective To explore the expressions of matrix metalloproteinases-1(MMP-1) and tissue inhibitor of metalloproteinase-1(TIMP-1) in sternomastoid muscle and explore the pathogenesis of sternomastoid muscle fibrosis in congenital fibra muscular torticollis in children.Methods The hyperplastic state of collagen fiber were determine by Masson collagen stainning method and muscular torticollis and fibra torticollis was differed,obtained 22 cases of the fibra torticollis group.Immunohistochemical method was used to determine the expression of MMP-1 and TIMP-1 in sternomastoid muscle of fibra torticollis and compared them with 6 cases of control group.Results By the immunohistochemical method,the expression of MMP-1 in the experiment group significantly decreased than that in control group(P0.05).Conclusion In congenital fibra torticollis,the sternomastoid muscle fibrosis is related to the decrease of MMP-1.

Objective To investigate the value of 99Tcm-methoxyisobutylisonitrile (MIBI) scintigraphy in assessing the preoperative chemotherapy response and multidrug resistance of osteosarcoma.Methods From January 2007 to October 2008, 12 patients (female:4, male:8; mean age:16.3 years,range:8-27 years) underwent early (10min) and delayed (120 min) 99Tcm-MIBI scintigraphy before and after preoperative chemotherapy.Seven cases had osteosarcoma at the distal femurs, 2 at the proximal tibias, 2 at the upper end of humerus and 1 at the fibula.The tumor-to-background ratio (T/B) and washout rate (WR) were calculated.Tumor necrosis was classified according to Huvos criterion after limb salvage surgery.Immunohistochemical staining for P-glycoprotein(gp) was examined.Spearman correlation analysis and t-test were performed.Results According to Huvos criterion, 7 patients were classified as good responders with more than 90% of tumor cell necrosis and 5 as poor responders with less than 90% of tumor cell necrosis.R value (ratio of early phase T/B after and before chemotherapy) was significantly lower in good responders than that in poor responders (0.473 ± 0.21 vs 0.998 ± 0.06, t= 5.342, P= 0.000 ).R value was significantly correlated with the degree of tumor cell necrosis ( rs=- 0.87, P= 0.000 ).WR was significantly higher in patients with positive P-gp expression than that in patients with negative P-gp expression ((38.36 ±18.64)% vs (6.40±5.87)%, t= -3.278, P=0.008).There was significant correlation between the WR and P-gp expression (rs = 0.91, P= 0.001 ).Conclusion 99Tcm-MIBI scintigraphy is a feasible non-invasive technique to assess the chemotherapy response and to detect P-gp expression of osteosarcoma.

Acute Disease ; Adult ; Female ; Humans ; Male ; Middle Aged ; Organophosphate Poisoning ; Respiratory Insufficiency ; blood ; chemically induced ; Tumor Necrosis Factor-alpha ; metabolism

Objective To explore the effect of?-3 fish oil fat emulsion on the release of pro-inflam- matory cytokines in patients with systemic inflammatory response syndrome(SIRS).Methods Forty patients with SIRS in the intensive care unit(ICU)from June 2006 to June 2007 were randomly divided into routine total parenteral nutrition(TPN)group(group A,20 cases)and?-3 fish oil fat emulsion+TPN treatment group(group B,20 cases).All the patients received treatment of parenteral nutrition with equal nitrogen content and calories.The caloric value given was 83.68 kJ?kg~(-1)?d~(-1),with 0.2 g?kg~(-1)?d~(-1)of nitrogen. Group A patients received routine TPN,and group B patients received TPN with?-3 fish oil fat emulsion 1-2 ml?kg~(-1)?d~(-1),and both regimes lasted for 7 days.The levels of serum tumor necrosis factor-?(TNF-?),interleukin-1(IL-1)and IL-6 were checked before the treatment,and on the 1st,3rd and 7th day after the beginning of the treatment.The duration in ICU,the incidence of multiple organ dysfunction syndrome(MODS)and the mortality rates in 28 days of the two groups were also assessed.Results Compared with the routine treatment group,the levels of serum TNF-?,IL-1,and IL-6 in the?-3 fish oil fat emulsion+TPN treatment group were lower markedly(P0.05).Conclusion The emulsion of?-3 fish oil fat seems to have a protective effect on patients with SIRS through decreasing the levels of serum TNF-?,IL-1 and IL-6,thus reducing the incidence of MODS,shortening the ICU stay, and increasing the survival rate of serious patients.

OBJECTIVETo study the dynamic changes in the protein marker expression in the spermatogonial stem cells (SSCs) of mice at different ages by iTRAQ protein mass spectrometry and to screen new markers using the bioinformatic proteome database.

METHODSBased on the postnatal weeks, we divided 80 healthy male C57BL/6 mice into eight age groups of equal number, harvested their testicular tissues, extracted proteins following purification of the SSCs by compound enzyme digestion and magnetic-activated cell sorting. Then we analyzed and identified proteins using two-dimensional electrophoresis, protein mass spectrometry, and protein database information.

RESULTSTotally, 248,510 mass spectra were obtained from the MS experiment and 1132 proteins were identified. By the criteria of >1.2-fold for protein abundance difference and P value <0.05, we identified 298 differentially expressed proteins and 9 currently known makers of SSCs (PCNA, GFRalpha1, CDH1, Annexin A7, UCHL1, VASA, CD49f, CD29, and PLZf). Compara- tive analysis showed different expressions of the proteins in the SSCs of the mice of different ages, and the differences in the expressions of GFRalpha1, CD49f, and CD29 were consistent with the findings in other published literature. Ten proteins (P63, CD71, CD98, K19, ACE, K18, K15, K17, SH2, and SH3) were selected as SSC markers to be further studied.

CONCLUSIONThe proteins in SSCs are differentially expressed in mice of different ages. The technology of iTRAQ protein mass spectrometry can be used to analyze and compare the proteome information of mouse SSCs, obtain differentially expressed proteins in mice of different ages, and thus offers a new ap- proach to further analysis and study of the function and roles of these differential proteins.

Adult Stem Cells ; cytology ; metabolism ; Age Factors ; Animals ; Biomarkers ; analysis ; metabolism ; Cell Separation ; methods ; Electrophoresis, Gel, Two-Dimensional ; Male ; Mass Spectrometry ; Mice ; Mice, Inbred C57BL ; Proteins ; analysis ; metabolism ; Spermatogonia ; cytology

AIM:To evaluate the clinical therapeutic efficacy of the Qi ming granule for macular edema ( ME ) in diabetic patients after phacoemulsification.
METHODS:In this was a prospective clinical comparison study, 57 diabetic patients ( 76 eyes ) who underwent phacoemulsification were recruited and divided into two groups:treatment group (34 eyes) and control group (42 eyes) . All the patients in treatment group were given oral administration Qi ming granule (4. 5g, tid) and vitamin C ( 0. 1g, tid ) for 6mo postoperatively, while vitamin C ( 0.1g, tid ) for the controls. General clinical examinations, including blood glucose and glycated hemoglobin, as well as comprehensive standardized ophthalmic examinations were performed. Optical coherence tomography ( OCT ) were used to detect macular edema incidence and measure central field retinal thickness.
RESULTS: No significant difference was found in the levels of blood glucose, glycated hemoglobin, course of disease, and macular thickness between the two groups during the initial visits. At the 6th month, 2 eyes ( 6%) eyes had clinically apparent macular edema in treatment group, while 6 ( 14%) eyes had clinically apparent macular edema in control group (P=0. 285). The central subfield retinal thickness values were significantly lower in the treatment group ( 211. 76±41. 21μm ) than those in control group (278. 36±48. 94μm) (P<0. 01).
CONCLUSION:Qi ming granule can significantly reduce the incidences of macular edema and suppresses increasing retinal thickening after phacoemulsification in patients with diabetes mellitus.

OBJECTIVETo observe clinical efficacy of plum-blossom needle for follicular maldevelopment (FM).

METHODSFifty cases of FM were randomly divided into a plum-blossom needle group and a medication group, 25 cases in each one. In the plum-blossom needle group, the plum-blossom needle was applied along Thoroughfare, Conception, Governor and Belt Vessel as well as at Pishu (BL 20), Weishu (BL 21), Shenshu (BL 23), Luanchao (Extra), Zigong (EX-CA 1) during the follicular growth phase, once every other day. In the medication group, clomifene (CC) was prescribed for oral administration and human choriogonadotropin (HCG) was given by intramuscular injection, once each day. For both groups, one menstrual cycle constituted one course. After two courses of treatment, follicular development condition, the changes of endometrial thickness and morphology, ovarian resistent index (RI) and pulsatility index (PI), rate of ovulation and pregnancy were compared between the two groups.

RESULTSAfter the treatment, the average diameters of the biggest follicle increased in both groups, while the endometrial thickness and morphology in the plum-blossom needle group were superior to those in the medication group (all P < 0.05). Ovarian RI and PI during mature follicular phase in the plum-blossom needle group were inferior to those in the medication group (both P < 0.05). The differences in ovulation and pregnancy rate were not significant statistically between the two groups (both P > 0.05).

CONCLUSIONThe plum-blossom needle therapy based on regulating Thoroughfare, Conception, Governor and Belt Vessel could improve the ovarian blood perfusion, promote the follicular growth, increase the ovulation rate of mature follicle and avoid the out-of-sync between growth of follicle and endometrium during the treatment of western medication.

Acupuncture Therapy ; Adult ; Clomiphene ; therapeutic use ; Female ; Humans ; Needles ; Ovarian Diseases ; drug therapy ; physiopathology ; therapy ; Ovarian Follicle ; growth & development ; Young Adult

Endophytic bacteria which was producing indoleacetic acid was screened from Panax ginseng by using the Salkowski method. The active strain was also tested for its ability of nitrogen fixation by using the Ashby agar plates, the PKV plates and quantitative analysis of Mo-Sb-Ascrobiology acid colorimetry was used to measure its ability of phosphate solubilization, for its ability of potassium solubilization the silicate medium and flame spectrophotometry was used, for its ability of producing siderophores the method detecting CAS was used, for its ability of producing ACC deaminase the Alpha ketone butyric acid method was applied. And the effect on promoting growth of seed by active strain was tested. The results showed that the indoleacetic acid producing strain of JJ5-2 was obtained from 118 endophytes, which the content of indoleacetic acid was 10.2 mg x L(-1). The JJ5-2 strain also had characteristics of phosphate and potassium solubilization, nitrogen fixation, producing siderophores traits, and the promoting germination of ginseng seeds. The JJ5-2 strain was identified as Bacillus thuringiensis by analyzing morphology, physiological and biochemical properties and 16S rRNA gene sequences.
Bacteria ; isolation & purification ; metabolism ; Endophytes ; isolation & purification ; metabolism ; Indoleacetic Acids ; metabolism ; Panax ; microbiology