Objective To ssarch for the relationship between hemoglobulin (Hb),erythrocyte protoporphyrin (EP) and the altitude.Methods The altitudes of Guinan and Maduo county in Qinghai province are respectively 3200m and 4300m. The 122 healthy students aged from 7 to 14 years old were selected, Hb and EP of them were respectively determined by the methods of ferric cyanation and fluorospectrophotometry. The statistical treatment was carry out by t test and matched-pair t test.Results The Hb levels of the healthy children aged from 7 to 14 years old in Guinan and Maduo county are respectively 133 .6?10.1 and 152.8?14.0 g/L (t = 12.31, p＜0.001), the EP levels of them are respectively 320.7 ? 114.9 and 347.8 ? 123.6 ?g/L (t = 1.77, P＞0.05), the value of EP/Hh of them are respectively 2.4 ?0 .9 and 2 .3?0.8 (t = 1.12, p＞0.05). The result of matched-pair t test shows that there are not sexural difFerence for Hb, EP and EP/Hb (P＞0.05).Conclusion Along with the increasing of altitude, the Hb and EP levels of the healthy Children aged from 7 to 14 years old are obviously increased and on sexural difference.

The research status is reviewed on taxonomic position, ecology, biological active matter and artificial cultivation of Shiraia bambusicola. Following problems are presented: whether there are new species and host specificity of Shiraia bambusicola. Since the artificial cultivation of stroma of Shiraia bambusicola has not been success, Shiraia bambusicola is in situation of emerge of itself and perish of itself so that it is not beneficial to resource protection and continual utilization of this medicinal fungus. It is pointed out that molecular biology of Shiraia bambusicola should be further researched and technology of artificial cultivation of Shiraia bambusicola should be explored in order to exploit and usage of Shiraia bambusicola.

Objective - To analyze the relationship between cobalt level of post shift urine and individual exposure level of ， cobalt and its compounds in cobalt exposed workers and to explore the feasibility of using urine cobalt as a biomarker. Methods - A total of 148 occupational cobalt exposed workers from a new material company were selected as the exposed ， - - group and 44 non occupational cobalt exposed workers from the company were selected as the control group using the typical sampling method. The exposure concentration of time weighted average of cobalt and its compounds in the workplace air of the - two groups was determined by inductively coupled plasma mass spectrometry as the individual exposure level. The cobalt levels - - of pre shift and post shift urinary samples of the two groups were detected by this method. The linear relationship between the - cobalt level of post shift urine and the individual exposure level of cobalt and its compounds in the air of the workplace was Results - 3 analyzed. The individual exposure level of cobalt and its compounds in the exposed group was 1.10 131.71 μg/m with （M） 3 the median of 12.23 μg/m. No cobalt and its compounds were detected in the workplace air in the control group. The cobalt - - levels of pre shift and post shift urines in exposed group were higher than those in the control group at the same time point （M： vs ， vs ， P ） - - 1.54 0.56 μg/L 8.77 0.83 μg/L all <0.01 . The cobalt level of post shift urine was higher than that in pre shift （M： vs ，P ）， urine in the exposed group 8.77 1.54 μg/L <0.01 and it was positively correlated with the individual exposure level （ ，P ） ， of cobalt and its compounds Spearman correlation coefficient=0.86 <0.01 . After common logarithm conversion the linear regression equation of the cobalt level of post shift urine and the common logarithm of individual exposure level of cobalt and （x） ：ŷ x（ ；F ， its compounds in the exposed group was as follows = −0.178 + 0.988 coefficient of determination=0.72 =374.75 P ；t ， P ） Conclusion - <0.01 = - 19.36 <0.01 . There was a linear correlation between cobalt level of post shift urine and occupational cobalt exposure level of cobalt exposed workers. Urinary cobalt can be used as a biomarker of occupational cobalt

Systemic lupus erythematosus (SLE) is an autoimmune disease caused by abnormal immune regulation and excessive production of autoantibodies, which characterized by T and B cell dysfunction and excessive production of pathological cytokines and autoantibodies. Vascular endothelia and subendothelial collagen were injured by harmful antibodies, so that the body was in a thrombophilic state, increasing the multi-system and multi-organ damage of body. Mesenchymal stem cells (MSC) are as multipotent cells, capable of multilineage differentiation, self-renewal, homing, inflammatory chemotaxis, immune regulation and reconstruction. To date, MSC are known to affect not only T cells, but also other cells of the immune system. MSC can inhibit or promote B cell proliferation, suppress NK cell activation and modulate the cytokine secretion profile of dendritic cells and macrophages. Thus decreasing the secretion of harmful cytokines and autoantibodies, can ease the thrombosis-prone state of the body, reducing the incidence of thrombosis. In addition, MSC are able to differentiate into various types of tissue cells, such as hematopoietic cells, endothelial cells, liver cells, nerve cells, bone cells, cartilage cells etc, therefore, MSC can repair the damaged tissues and organs. In this article, the advance of studies on immune regulation and repair mechanisms of MSC on incident thrombosis in SLE is reviewed.
Humans ; Lupus Erythematosus, Systemic ; immunology ; pathology ; Mesenchymal Stromal Cells ; immunology ; Thrombosis ; immunology ; pathology

AIMTo explore the change of number working memory ability in healthy young adults, a continuous 3-back number working memory task were performed for an hour and 12 Blocks according to different COMT genotypes of young adults.

METHODS18 different genotype subjects were chosen from 112 healthy young adults, P3 event-related potentials was utilized to observe the relationship between this COMT polymorphism and cortical physiology in a continuous working memory task.

RESULTSSubjects bearing the Val/Val homozygote had significantly higher mean P3 amplitudes than Val/Met heterozygote (P < 0.01), however, no significant differences in comparison to Met/Met homozygote.

CONCLUSIONVal/Met Heterozygote subjects are associated with the poorest performance of working memory. There is a relationship between COMT genotype and P3 visual event-related potentials evoked from 3-back task.

Adult ; Brain ; enzymology ; physiology ; Catechol O-Methyltransferase ; genetics ; Event-Related Potentials, P300 ; genetics ; Evoked Potentials, Visual ; genetics ; Genotype ; Humans ; Male ; Memory, Short-Term ; physiology ; Polymorphism, Genetic ; Young Adult

Objective To evaluate the treatment of aneurysms rupture during endovascular embolization.Methods Nine aneurysms ruptured during the embolization and were treated with endovascular embolization.The reasons of aneurysms rupture during embolization,the prevention and the first aid after aneurysms rupture were analysed.Results Seven patients recovered and 2 died.Conclusions The optimal treatment of aneurysms rupture during endovascular embolization is effective,(J Intervent Radiol,2007,16: 132-134)

OBJECTIVETo assess the practical value of BIOMED-2 primers in the diagnosis of ocular adnexal lymphoma by PCR.

METHODSDNA was extracted from 63 formalin-fixed paraffin-embedded (FFPE) ocular adnexal lymphoma specimens. The DNA quality was evaluated by PCR-based amplification of housekeeping gene beta-actin. IgH(B) and IgK(B) primers of BIOMED-2 standardized clonality analysis system were used to evaluate the immunoglobin gene rearrangements. PCR products were analyzed using capillary electrophoresis and GeneScan software.

RESULTS76.2% (48/63) of FFPE samples produced amplifiable DNA for detection of Ig gene rearrangements.Positive detection rates by BIOMED-2 IgH(B) and IgK(B) primers were 79.2% (38/48) and 68.8% (33/48), respectively, with a combined positive detection rate of 91.7% (44/48).

CONCLUSIONSIgH(B) and IgK(B) primers of BIOMED-2 are suitable for the detection of clonal rearrangements of Ig gene using FFPE specimens of ocular adnexal lymphomas.

Actins ; genetics ; Adult ; Aged ; DNA Primers ; Eye Neoplasms ; diagnosis ; genetics ; pathology ; Female ; Gene Rearrangement, B-Lymphocyte, Heavy Chain ; Gene Rearrangement, B-Lymphocyte, Light Chain ; Humans ; Lymphoma, B-Cell ; diagnosis ; genetics ; pathology ; Lymphoma, Follicular ; diagnosis ; genetics ; pathology ; Male ; Middle Aged ; Paraffin Embedding ; Pilot Projects ; Young Adult

The wild resources of Dendrobium officinale in Anhui province were studied by textural research, data collection, interview survey and regional survey, in order to investigate the resources distribution and ecological characters and provide the reference for Anhui Dendrobium industry. In this paper, a part of producing areas of wild D. officinale in Anhui province was selected to analyze the ecological characters. As a result, we find that the wild resources of D. officinale in Anhui distributed only sporadic and the conditions of growth environment were harsh. Our findings may provide some suggestions on wild resources protection and artificial cultivation in suitable environments because the wild resources of D. officinale in Anhui are decreasing rapidly and facing an endangered situation.
China ; Dendrobium ; chemistry ; growth & development ; Drugs, Chinese Herbal ; supply & distribution ; Ecological and Environmental Phenomena

BACKGROUND AND OBJECTIVEIn patients with hepatocellular carcinoma (HCC) receiving potentially curative minimally invasive therapy, autologous cytokine-induced killer (CIK) cells were used to reduce recurrence. In this study we observed the changes in serum alpha-fetoprotein (AFP) after the treatment with CIK cells to explore if AFP could serve as a marker for predicting immunotherapeutic clinical outcome.

METHODSA total of 122 patients with HCC and elevated AFP (>25 ng/mL) received a curative treatment of transcatheter arterial chemoembolization (TACE) plus radiofrequency ablation (RFA) at the Sun Yat-sen University Cancer Center. Of these patients, 83 patients without residual tumor or extrahepatic metastasis and with AFP level less than 1.5 times the normal range (AFP<37.5 ng/mL) were randomly assigned to the study group (n=42) and the control group (n=41). In the study group, CIK cells were transfused intravenously or via common hepatic arteries every week for at least 4 times, and the T-lymphocyte subset data before and after CIK cell infusions was examined by flow cytometry. All the two groups of patients were screened by tomography every 2 months to observe tumor recurrence. Serum AFP was collected at baseline and at different time points after treatment in parallel with radiologic response and clinical outcome.

RESULTSTwo patients in the control group were lost to follow-up after treatment. After CIK cell infusions, the downtrend of the AFP level was observed in the study group and not in the control group. There was a significant difference in the level of AFP between different time points after CIK infusions in both groups. The 1-year recurrence rate was 7.14% for the study group and 23.1% for the control group (P=0.044). In subgroup analysis, for patients with a slightly high level of AFP (25 ng/mL

CONCLUSIONSCIK cells transfusion may reduce the level of serum AFP and anti-HBV and decrease the 1-year recurrence rate of patients with HCC after curative TACE plus RFA. Serum AFP decrease after CIK cell treatment may serve as a useful marker for predicting immunotherapy clinical outcome in patients with HCC undergone curative minimally invasive therapy.

Adult ; Aged ; Biomarkers, Tumor ; metabolism ; CD4-CD8 Ratio ; Carcinoma, Hepatocellular ; blood ; immunology ; therapy ; Catheter Ablation ; Chemoembolization, Therapeutic ; Cytokine-Induced Killer Cells ; transplantation ; DNA, Viral ; metabolism ; Female ; Follow-Up Studies ; Hepatitis B virus ; genetics ; Humans ; Immunotherapy, Adoptive ; Liver Neoplasms ; blood ; immunology ; therapy ; Male ; Middle Aged ; Neoplasm Recurrence, Local ; T-Lymphocyte Subsets ; immunology ; alpha-Fetoproteins ; metabolism

Scm in volume(42/60),multiple site involvement(44/60),blood type"O"(31/41),in comparison with those of survival group,and the difference was statistically significant.C-erbB-2,p16,p53,P-gp,CD_(44) and CD_(25)expression were not significantly different in these two groups. Conclusion The clinical stage, lymph node metastasis,lymphatic tumor emboli and/or neural involvement,infiltration depth,histological dif- ferentiation,tumor volume,involvement extension are important prognostic factors in patients with gastric can- cer,while the significance of cancer-related gene expression in gastric carcinomas needs to be studied further.