BACKGROUND: Cancer stem cell is a minority population of cancer cells in multiple myeloma possessing the properties of stem cells: self-renewal, multi-directional differentiation and long-term proliferation, which mediating disease initiation, relapse, progression and drug resistance. OBJECTIVE: To review characteristics of biology, phenotypic analyses, sorting and identification in clonogenic myeloma cells, the signaling pathways with in myeloma stem cells and the target therapy related. METHODS: Application of computer search Medline database (1999-01/2009-04), using "multiple myeloma stem cells, heterogeneity, phenotypic analysis, signaling pathways, target therapy" as key words ;application of computer search CNKI database (1999-01/2009-04) and CBM Database (1999-01/2009-04) using "multiple myeloma stem cells, heterogeneity, stem cell separation and identification, signal transduction, targeted therapy as key words" . RESULTS AND CONCLUSION: We collected for 126 literatures on the multiple myeloma stem cell-related, which include 30 Chinese articles and 96 English articles, excluding published earlier, repeated, and similar studies into 30 sub-standard literatures. Now widely recognized that multiple myeloma stem cells may be derived from normal stem cells, the accumulation of mutations and by gene mutation in regaining self-renewal capacity of progenitor cells or fully differentiated mature cells. Circulating clonotypic memory B-cell populations have self-renewal and multi-directional differentiation potential, which represent the cancer stem cells in multiple myeloma. The exact phenotype of multiple myeloma cancer stem cells has not been definitively established and researched remains. At present, both the side population cells and aldehyde dehydrogenase (ALDH) activity assays were mainly capable of isolating multiple myeloma cancer stem cells. Which to possess self-renewal ability by Hedgehog ,Wnt and Notch signaling pathways. When these signal transduction pathways appear abnormal, leading to the occurrence of the tumor and tumor cell growth in non-controlled. Against the cancer stem cell targeted therapy is a new and important direction of selective therapeutic strategies. Cancer stem cell specific surface markers and signal transduction pathways can be used as anti-cancer stem cells to control tumor development targets.

BACKGROUND: Cancer stem cell is a minority population of cancer cells in multiple myeloma possessing the properties of stem cells: self-renewal, multi-directional differentiation and long-term proliferation, which mediating disease initiation, relapse, progression and drug resistance.OBJECTIVE: To review characteristics of biology, phenotypic analyses, sorting and identification in clonogenic myeloma cells, the signaling pathways with in myeloma stem cells and the target therapy related.METHODS: Application of computer search Medline database (1999-01/2009-04), using "multiple myeloma stem cells, heterogeneity, phenotypic analysis, signaling pathways, target therapy" as key words; application of computer search CNKI database (1999-01/2009-04) and CBM Database (1999-01/2009-04) using "multiple myeloma stem cells, heterogeneity, stem cell separation and identification, signal transduction, targeted therapy as key words".RESULTS AND CONCLUSION: We collected for 126 literatures on the multiple myeloma stem cell-related, which include 30 Chinese articles and 96 English articles, excluding published earlier, repeated, and similar studies into 30 sub-standard literatures. Now widely recognized that multiple myeloma stem cells may be derived from normal stem cells, the accumulation of mutations and by gene mutation in regaining self-renewal capacity of progenitor cells or fully differentiated mature cells. Circulating clonotypic memory B-cell populations have self-renewal and multi-directional differentiation potential, which represent the cancer stem cells in multiple myeloma. The exact phenotype of multiple myeloma cancer stem cells has not been definitively established and researched remains. At present, both the side population cells and aldehyde dehydrogenase (ALDH) activity assays were mainly capable of isolating multiple myeloma cancer stem cells. Which to possess self-renewal ability by Hedgehog ,Wnt and Notch signaling pathways. When these signal transduction pathways appear abnormal, leading to the occurrence of the tumor and tumor cell growth in non-controlled. Against the cancer stem cell targeted therapy is a new and important direction of selective therapeutic strategies. Cancer stem cell specific surface markers and signal transduction pathways can be used as anti-cancer stem cells to control tumor development targets.

Objective To investigate hemoglobin A1c(HbA1c) and homocysteine (Hcy) in nondiabetic elder patients with coronary heart disease (CHD),and explore their clinical value.Methods Eighty-six non-diabetic elder patients with CHD [45 cases with acute coronary syndrome (ACS) and 41 cases with stable angina pectoris (SAP)] and sixty elder patients without diabetes mellitus and coronary heart disease as control group were selected.The plasma levels of HbA1c and Hcy in all groups were detected and analyzed.Results The levels of HbA1c and Hcy in CHD group were significantly higher than those in control group (P ＜0.05),and levels of HbA1c and Hcy in ACS group were both higher than SAP group (P＜0.05).The change of HbA1c and Hcy had positive correlation (r =0.34,P ＜0.05).Conclusions The levels of HbA1c and Hcy were higher in non-diabetic elder patients with CHD than those without CHD,and might correlate with atherosclerosis.HbA1c and Hcy might be markers of cardiovascular risk.

Objective:Spectrophotometer is a device to be verified obligatory in hospital. This article introduced some techniques to avoid ordinary mistakes in measurement. Methods:We introduced principle and verification regulation of spectrophotometer. Such methods as parameter configuration, proper maintenance can reduce our mistakes. Results: This article analyzed some common problems in measurement and also offered solutions. Conclusion: In the measurements of spectrophotometers, because the operators have less spectrophotometer operation experience, they often get inaccurate data which lead to an error. Conclusion: To avoid these mistakes, strictly regulate operations in spectrophotometer’s verification and proper routine maintenance are necessary.

Objective To explore the clinical and molecular biological characteristics of spinocerebellar ataxia type 3(SCA3).Methods Clinical manifestation and brain MRI data of 12 patients with SCA in two families were analyged.The polymorphic CAG repeated time in the encode region of SCA3,SCA1 and SCA7 genes were compared in 15 family numbers without abnormal presentations,and 12 healthy persons of controls.Results Among 27 numbers of 4 generations in the two families had 12 patients,male and female were affected,average onset was 32 years old.The main clinic features included gait ataxia,ambiguity in speech and action clumsiness.Brain MRI showed remarkable atrophy on cerebellum and brain stem.In the two families,the CAG lengths of SCA1 and SCA7 were normal in all numbers.The repeated times of CAG of SCA3 were 11~39 in two control groups,65 ~87 in 10 cases,diagnosed as SCA3 patients.The child Ⅳ2 of family 1 was 8 years old,the repeated times of CAG of SCA3 were repeats 21 and 64 times,repectively.He might be a asymptomatic patient,because he was too young to onset the disease.Conclusions SCA3 is an autosomal dominant genetic disease.The clinical manifestations are ataxia and dysarthria.The detection of repeated times CAG can provide an effective way for the genetic and asymptomatic diagnosis.

AIM: To establish a normal HPLC fingerprint chromatogram of herba Taraxaci in Henan Province. METHODS: 40 different kinds of herba Taraxaci were determined by RP-HPLC.Methanolthe solution of NaH_2PO_4(0.02 mol/L)(pH=3.8) gradient elution were adopted as a mobile phase,80 min the recording chromatogram chart and 1.0 mL/min of the velocity of flow detection wavelength was at 323 nm,column temperature was at 35℃. RESULTS: 9 steady mutual peaks were indicated. CONCLUSION: This method is simple,credible and of good reproducibility,can be used to identify and evaluate herba Taraxaci.

AIMTo develop a rat model of insulin resistanc e,and to study the effect of puerarin injection on expression of protein kinase B in insulin resistanc e rats. METHODS30 SD rats were randomly divded into two groups. The model group were given the high fat diets(0 30 pig fat, 0 10 sucrose, 0 0 3 cholesterol) for 8 weeks. Then 9 rats of the group had been choosen as the pu erarin treatment group and were given abdominal injection (100 mg?kg -1 ?d -1 ) for 4 weeks. By the end of the experiment, Western blot and computer i mage pattern analyze system were used to analysis expression of PKB in skeletal muscles. RESULTS(1) The model group showed a hyperglycemia, hype rinsulinism and obviously visceral obesity by high fat-feeding, the insulin res istance index (ISI) decreased while the HOMA insulin resistance index (HOMA-IR) increased compared to the normal group, insulin resistance was induced in this way; (2) Compared with the pathology control group:fasting blood glucose (FBG), fasting insulin (FINS), visceral fat mass and the HOMA insulin resistance index (HOMA-IR) of the treating group were significantly decreased whereas the insuli n index (ISI) enhanced. Expression of PKB was markedly increased by puerarin tre atment. CONCLUSIONPuerarin injection can significantly elevate e xepression of PKB and ameliorate the state of insulin resistance. Improved biolo gic effect of insulin and prevention of the deleterious effect of fat may be in volved in the mechanism concerned.

Chimeric antigen receptor (Car) T cells, not only have the characteristics of strong specific recognition of tu-mor antigens, but also have destruction and high affinity advantages, thus receiving more attention. Although it has played a lot of advantages in anti-tumor, it still has some shortcomings, which needs to be further optimized to improve the safety of its clinical application. In this study, The cell structure and biological function, treatment process, application development and application risk of Car T cells are reviewed, which provide references for further clinical immunotherapy of Car T.

BACKGROUND: The morbidity of diabetes mellitus increased recently.There are few reports about the pulmonary function status of the patients with diabetes mellitus.OBJECTIVE: To comparably observe the difference of the pulmonary function status between patients with diabetes mellitus and normal persons,and to probe into the relationship between the course of disease of diabetes mellitus and the functional change of pulmonary function.DESIGN: Case controlled observation SETTING: Renmin Hospital, Wuhan University PARTICIPANTS: Totally 90 patients with diabetes mellitus hospitalized in the Renmin Hospital, Wuhan University between January 2000 and De cember 2003 were recruited. All the patients participated in the experiment voluntarily. Totally 20 cases were of insulin dependent diabetes mellitns (IDDM) and 70 cases were of non-insulin dependent diabetes mellitus (NIDDM). Another 90 cases were divided into 2 groups with the boundary line of 10 years: group with disease course ＜10 years (n=40) and group with disease course ＞10 years (n=50). And 30 normal persons with healthy pulmonary function was set as healthy control group, all the testees were voluntary participants in the experiment.METHODS: Pulmonary function index of the participants of each group was measured: vital capacity (VC), forced vital capacity (FVC), forced expiratory volume in 1 s (FEV1%), peak expiratory flow rate(PEFR)maximal voluntary ventilation (MVV) and comparison was performed between them.Comparison of the pulmonary function status of the patients between different levels of diabetes mellitus.pulmonary function between different groups : Compared with health control group, VC , FVC and MVV of the patients with diabetes mellitus was significantly decreased (t=1.999-2.301, P ＜ 0.05).There was no significant difference in the VC, FVC and MVV between patients with monary function between patients with different diabetes mellitus: the pulmonary function status in the group with disease course ＞10 years was improved less than that in the group with disease course ＜10 years [ VC (L):2.62±0.65 vs 3.25±1.25;FVC(L): 2.40±0.52 vs 3.21±0.98;FEV1%:75.31±2.31 vs 80.63±5.56;PEFR (L/s):4.33±0.68 vs 5.98±1.02;MVV (L/s): 76.22±6.98 vs 89.21±5.69 (t=2.012-2.350, P ＜ 0.05)].CONCLUSION: Pulmonary function of the patients with diabetes mellitus has reduced tendency compared with the normal persons, and the pulmonary function of the patients with long course of disease decreases significantly. More attention should be paid to diabetes patients' pulmonary function changes.

Objective To screen stage\|specific expression genes of plerocercoid of Spirometra erinacei\|europaei. Methods RNA was extracted by the acid guanidinium thiocyanate\|phenol\|chloroform from plerocercoid and adult worm of Spirometra erinacei\|europaei. Contaminated DNA in the RNA was digested by RNase\|free DNase. cDNA was synthesized by using T\-\{12\}MA, T\-\{12\}MC, T\-\{12\}MG and T\-\{12\}MT primers, and PCR was then done using the same T\-\{12\}MN and one random primers. The PCR products were fractionated on 8% denatured polyacrylamide gel, differential bands of plerocercoid found in the gel were cut out, amplified by PCR and sequenced after the gel was dried out and autoradiographed. Northern hybridization was conducted to identify the stage\|specific expression genes. Results Eleven differential bands were selected from the gel and classified into 3 kinds of gene fragments by hybridization after they were amplified by PCR. The fragments 1 and 2 were confirmed to express specifically in plerocercoid by Northern hybridization, but the fragment 3 was expressed in both plerocercoid and adult worm. When the 3 gene fragments were homologically analyzed in GenBank, the sequence which was homologous with the fragments 1 and 2 was not found, but the fragment 3 had high homology with many kinds of 28S rRNA. Conclusion The gene expression of plerocercoid was different from that of adult worm probably because they live in different hosts. Two kinds of different gene fragments in plerocercoid were identified by mRNA differential display technique.