Objective :To study the two common method of internal irradiation for nanometer-iron nuclide,and how to estimation of the absorbed dose for each of them.Methods:We chose the nanometer-iron nuclide emitting β-ray during the decay period,Respectively,Arterial injected into the liver or percutaneous puncture direct inject into the liver.Results:Through the formula,a few nanometer-iron nuclide can produced greater radiation.Conclusion:The estimation of absorbed dose depends on the therapy method.

Objective:To establish the high performance liquid chromatography (HPLC) combined with switching wavelength method to determinate chlorogenic acid, ferulic acid, Calycosin-7-glucoside in Shenqi-Yiqi oral liquid. Methods:The Shenqi-Yiqi oral liquid was separated on an Agilent HC-C18 column by gradient elution using acetonitrile (A) - 0.1% phosphate (B) as the mobile phase. The flow rate was 1.0 ml/min. The detection wavelengths were 260 nm (chlorogenic acid and Calycosin-7-glucoside), 316 nm (ferulic acid) by wavelength conversion method. Results:The linear ranges of chlorogenic acid, ferulic acid, Calycosin-7-glucoside were 70.40-704.00 μg ( r=0.999 8), 1.36-13.60 μg ( r=0.999 8), 1.28-12.80 μg ( r=0.999 7), the average recovery rate were 99.44% ( RSD=2.54%), 101.06% ( RSD=1.57%), and 98.00% ( RSD=2.09%). Conclusion:This method is convient, rapid and accurate for determinating chlorogenic acid, ferulic acid and Calycosin-7-glucoside in Shenqi-Yiqi oral liquid.

Objective To investigate the causes of and prevention for cerebral complications in perioperative period in patients with carotid stenosis. Methods The causes and treatment of cerebral complications among 133 cases of carotid stenosis during perioperative period from May 2004 to Jun 2009 were analysed retrospectively. Results Among 133 cases, 94 cases underwent carotid endarterectomy (CEA) and 39 cases had carotid artery stenting(CAS). Cerebral complications developed in 16 cases including 3 cases of more than two attacks. 5 cases suffered from tansient ischemia attacks (TIA)or cerebral ischemia before operation. 5 developed TIA or cerebral hyperperfusion syndrome (CHPS) among those undergoing CEA and 4 developed TIA or CHPS among CAS cases. During postoperative period, 8 cases developed TIA, CHPS,cerebral infarction or cerebral hemorrhage. Conclusions Prevention and treatment of cerebral complications is extremely important durning surgical therapy of carotid stenosis.

OBJECTIVEIn order to improve the irrigation for Panax notginseng growing seedlings, different mulching ways were carried out to investigate the effects of double mulching.

METHODField experiment was applied to study soil moisture, soil temperature and bulk density of different mulching ways while the germination rate and seedlings growth also were investigated.

RESULTCompared with the traditional single mulching with pine leaves or straw, double mulching using plastic film combined with pine leaves or straw could reduce 2/3 volumes of irrigation at the early seedling time Double mulching treatments didn't need to irrigate for 40 days from seeding to germination, and kept soil moisture and temperature steady at whole seedling time about 30% and 9.0-16.6 degrees C, respectively. The steady soil moisture and temperature benefited to resist late spring cold and germinate earlier while kept germination regularly, higher rate and seedlings quality. In contrast, single mulching using pine leaves or straw had poor soil moisture and temperature preserving, needed to irrigate every 12-day, meanwhile dropped the germination and booming time 14 days and 24-26 days, respectively, reduced germination rate about 11.3%-8.7%. However, single pine leaves mulching was better than straw mulching. In addition, though better effects of soil moisture and temperature preserving as well as earlier and higher rate of germination with single plastic films mulching had, some disadvantages had also been observed, such as daily soil temperature changed greatly, seedling bed soil hardened easily, more moss and weeds resulted difficulty in later management.

CONCLUSIONTo the purpose of saving water and labor as well as getting higher germination rate and seedlings quality, double mulching using plastic films combined pine leaves at the early time and single mulching removing plastic films at the later time is suggested to apply in the growing seedlings of P. notoginseng.

Agriculture ; methods ; China ; Drugs, Chinese Herbal ; analysis ; Fertilizers ; analysis ; Panax notoginseng ; chemistry ; growth & development ; Quality Control ; Seedlings ; chemistry ; growth & development ; Soil ; chemistry

OBJECTIVETo observe the functional changes of dendritic cells (DCs) after infection by recombinant retrovirus carrying human telomerase reverse transcriptase (hTERT) gene fragment.

METHODSInterleukin-12 (IL-12) levels in DC culture supernatant was determined by enzyme-linked immunosorbent assay (ELISA). The abilities of DCs infected with recombinant retrovirus carrying hTERT gene (hTERT-DCs) and non-infected DCs (N-DCs) to stimulate allogeneic lymphocyte proliferation were evaluated with mixed leukocytes reaction (MLR), and the surface markers of DCs including CD80, CD83, CD86 and HLA-DR were detected by flow cytometry. Cytotoxic T lymphocyte (CTL) assay was performed with CytoTox 96 non-radioactive cytoxicity assay.

RESULTSCompared with N-DCs, hTERT-DCs showed no significant changes in IL-12 secretion and capacity to stimulate allogeneic lymphocytes reaction, but had significantly lower CD83 expression. Specific CTLs induced by hTERT-DCs resulted in higher cytotoxicity against telomerase-positive target cells than that against the negative target cells.

CONCLUSIONInfection with the recombinant retrovirus carrying hTERT fragment may jeopardize the maturation of DCs, which, however, still retain their capacity to activate and stimulate lymphocyte proliferation and to prime autologous T lymphocytes to generate specific CTL against hTERT.

Cells, Cultured ; Dendritic Cells ; cytology ; immunology ; virology ; Genetic Vectors ; Humans ; Interleukin-12 ; biosynthesis ; Recombination, Genetic ; Retroviridae ; genetics ; metabolism ; T-Lymphocytes, Cytotoxic ; immunology ; Telomerase ; biosynthesis ; genetics

OBJECTIVETo investigate association of vitamin D receptor (VDR) gene polymorphisms with the susceptibility to chronic periodontitis (CP) of Han Nationality.

METHODSBuccal swabs from 166 patients with severe, moderate and mild CP respectively and 80 matched control individuals were collected. DNA was extracted from these buccal swabs using Chelex-100 method. VDR BsmI, ApaI, TaqI were tested with polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). The distribution of the genotypes and allele frequencies in the patient and control groups were analyzed.

RESULTSThe frequency of VDR ApaI allele A was significantly higher among patients with CP than controls. Frequencies of VDR ApaI allele A were significantly higher in severe CP patients than in moderate CP and mild CP respectively. There was no significant difference in the genotype distribution or the allele frequencies of VDR BsmI and TaqI between the controls and CP patients.

CONCLUSIONSThese data indicate that VDR ApaI allele A may be related to the susceptibility to CP in Han Nationality.

Adult ; Aged ; Alleles ; Asian Continental Ancestry Group ; genetics ; Chronic Periodontitis ; genetics ; Female ; Gene Frequency ; Genetic Predisposition to Disease ; Humans ; Male ; Middle Aged ; Polymorphism, Genetic ; Receptors, Calcitriol ; genetics

The aim of this study was to investigate the relationship between the plasma levels of chemokine CCL-2/MCP-1 and acute graft-versus-host disease (aGVHD) and/or idiopathic pneumonia syndrome (IPS) after allogeneic hematopoietic stem cell transplantation (allo-HSCT). ELISA assays were used to detect the plasma level of CCL-2/MCP-1 of 22 patients who received allo-HSCT, including 14 patients without or with grade I, 8 patients with grade II - IV aGVHD, respectively. 8 out of 22 patients were also diagnosed with IPS clinically. The dynamic changes of the plasma levels of CCL-2/MCP-1 chemokine and its correlation with aGVHD and/or IPS were analysized retrospectively. The results showed that the plasma levels of CCL-2/MCP-1 in the patients with moderate and serious aGVHD (grade II - IV) significantly increased, as compared with that prior to allo-HSCT (p < 0.05). The plasma levels of CCL-2/MCP-1 in the patients with aGVHD and/or IPS were higher significantly than those without any of these complications (p = 0.001). The retrospective analysis indicated that the plasma levels of CCL-2/MCP-1 in the patients with IPS significantly increased (p = 0.006). It is concluded that plasma level of CCL-2/MCP-1 correlates with aGVHD and/or IPS, and plays a role in the pathogenesis of these complications.
Adolescent ; Adult ; Chemokine CCL2 ; blood ; Child ; Child, Preschool ; Female ; Graft vs Host Disease ; blood ; Hematopoietic Stem Cell Transplantation ; adverse effects ; Humans ; Lung Diseases, Interstitial ; blood ; etiology ; Male ; Middle Aged ; Syndrome ; Young Adult

OBJECTIVETo observe whether rhIL-11 could accelerate the engraftment of platelets after unrelated cord blood transplantation (CBT).

METHODSNine patients (3 children and 6 adults) were enrolled in this study. The degree of HLA disparity was 0-2 loci. Cord blood was given two units for adults and one unit for children. Conditioning regimens were CY/TBI in 1 and BU/CY in 8 cases, both with antithymocyte globulin. Graft-versus-host disease (GVHD) prophylaxis consisted of cyclosporine and short-term methotrexate. On day +1, rhIL-11 was used at 50 microg x kg(-1) x d(-1) and G-CSF at 5 microg x kg(-1) x d(-1) to accelerate hematopoiesis recovery.

RESULTSThe median age of the patients was 22.3 years and the median weight 52.3 kg. Among the 9 patients, 8 (88.9%) experienced engraftment. The median time to neutrophil > 0.5 x 10(9)/L was 21.3 (14-37) days and to platelet > 20 x 10(9)/L was 25 (18-36) days. 42.9% of the patients developed grade I aGVHD and 33.3% developed localized chronic GVHD. Six patients were alive and disease-free at a median follow-up of 7 months. Infection was the primary cause of death. The expected 1-year survival was 77.8%, 2-year survival was 52.2%. Five of 8 patients (62.5%) who received IL-11 presented leakage syndrome. On prophylaxis with drugs containing Arnebia root extract, all patients could tolerate the treatment.

CONCLUSIONrhIL-11 maybe helpful for accelerating the platelet recovery and reducing aGVHD severity in unrelated CBT. The major side effect is leakage syndrome. It is well tolerated on prophylaxis with drugs containing Arnebia root.

Adolescent ; Adult ; Blood Platelets ; drug effects ; Child ; Cord Blood Stem Cell Transplantation ; Female ; Follow-Up Studies ; Graft vs Host Disease ; prevention & control ; Humans ; Interleukin-11 ; pharmacology ; Male ; Recombinant Proteins ; pharmacology

To compare the efficacy and safety of Lamivudine (LAM) plus Adefovir dipivoxil (ADV) combination therapy and Entecavir (ETV) monotherapy for chronic hepatitis B patients. 120 patients with chronic hepatitis B managed in a single-centre clinical practice (median 96 weeks) were split into 2 cohorts, one was treated with de-novo combination Lamivudine (100 mg/day) plus Adefovir (10 mg/day) (LAM+ADV), the other with Entecavir (0.5 mg/day) monotherapy. Serum levels of ALT, creatinine, HBsAg, HBeAg and HBV viral load, together with genotypic resistence were analyzed at 0, 12, 24, 48, 96 weeks, respectively. HBV DNA was determined by real-time PCR. HBsAg and HBeAg were assessed by chemiluminescence. Serum levels of ALT and creatinine were detected by automatic biochemical analyzer. HBV genotypic resistence was tested by direct sequencing. (1) At the time point of 96 weeks, a total of 99 patients (51 cases in combination therapy cohort and 48 case in monotherapy cohort) were compared. The baseline characteristics as for HBV viral load, median age, serum levels of ALT and creatinine were compatible between combination therapy cohort and monotherapy cohort. (2) The rates of HBV DNA values is less than 300 copies/ml and HBV DNA values is less than 1000 copies/ml had no significant difference between LAM + ADV and ETV cohorts by the 12 and 24 weeks (P more than 0.05). (3) At the time point of 48 weeks, the rates of HBV DNA is less than 1000 copies/ml, HBeAg seroconversion, and ALT normalization were similar in both cohorts, though the rate of HBV DNA values is less than 300 copies/ml was obviously higher in combination therapy cohort than that of monotherapy cohort (90.7% vs 76%, P values is less than 0.05). (4) At the time point of 96 weeks, the rates of HBV DNA values is less than 300 copies/ml (96.1% vs 79.2%), HBV DNA values is less than 1000 copies/ml (98% vs 87.5%) and the HBeAg seroconversion (41.7% vs 16.7%) were markedly higher in combination therapy cohort than those of monotherapy cohort statistically (P values is less than 0.05 for all). The mean values of decreases for HBV viral loads and HBsAg levels were smilar in both cohorts at 48 and 96 weeks. (5) Elevated serum creatinine not be found in both cohorts at the end of treatment. (6) No virological breakthrough occurred in combination therapy cohort at the end of treatment. Four patients in monotherapy cohort were found with virological breakthrough at 96 weeks and three cases among were confirmed to be of variants associated with ETV resistance (rtL180M + T184L + M204V). Present study suggests that Lamivudine plus Adefovir dipivoxil de-novo combination therapy was more efficacious than Entecavir monotherapy for CHB patients and the tolerance is compatible.

OBJECTIVETo explore the therapeutic feasibility of allogeneic hematopoietic stem cell transplantation (allo-HSCT) from partially HLA-mismatched related donors for hematologic diseases.

METHODSThirty patients with hematologic diseases received allo-HSCT from 1 - 3 loci mismatched related donors conditioning regimen consisting of ATG (thymoglobulin, total dose of 10 mg/kg, intravenously on - 4 d to - 1 d), and only 5 (18%) of 28 recipients from HLA-identical sibling donors were treated with regimen containing ATG. Donors were given G-CSF prior to hematopoietic stem cell harvest and CsA, short-term MTX and mycophenolate mofetil (MMF) were used for GVHD prophylaxis in both group.

RESULTSAll patients were successfully engrafted. There was no significant difference in the incidence of grade II to IV acute graft-versus-host disease (aGVHD) and grade III to IV aGVHD between the mismatched and matched groups (34% vs 32%, and 13% vs 11%, respectively). 3-year overall survival (OS) and disease-free survival (DFS) in mismatched and matched groups were 57% vs 77% (P = 0.14) and 57% vs 69% (P = 0.28), respectively. Multivariate analysis showed that advanced disease pre-transplant (P = 0.006) and CMV infection (P = 0.04) were risk factors for OS. OS for patients with stable disease in mismatched and matched groups were 87% vs 81% (P = 0.65) respectively, and for those with advanced disease were 21% vs 71% (P = 0.02).

CONCLUSIONSIt is feasible to perform allo-HSCT from 1 -3 loci HLA-mismatched related donors for patients with stable disease who lack HLA-identical sibling donors. Nevertheless, for patients with advanced disease optimized conditioning regimen and intensive supporting therapy should be administered to obtain better clinical outcomes.

Graft vs Host Disease ; prevention & control ; HLA Antigens ; Hematopoietic Stem Cell Transplantation ; methods ; Humans ; Siblings ; Tissue Donors ; Transplantation Conditioning