Objective:To investigate the relationship of micro-inflammation,cellular and humoral immune function and kidney disease of patients with diabetic nephropathy. Methods:124 cases of DN were randomly divided into normal albuminuria group ( NA, n=35),microalbuminuria group (MA,n=45) and clinical albuminuria groups(CP,n=44) based on 24 h urinary albumin excretion rate ( UAER) and the healthy subjects were selected as the control group ( n=35 ) . The levels of C-reactive protein ( CRP ) were measured with radioimmunoassay,the levels of interleukin-6(IL-6),tumor necrosis factor-α(TNF-α) and humoral immunity(IgG enzyme-linked immunosorbent assay,IgA,IgM) were measured with ELISA. The levels of immune response ( CD4+Th17,Th17/Treg, CD4+ CD25+ Treg) were measured with flow cytometry cellular. The levels of creatinine ( Scr) ,cystatin C ( CYSC) and UAER of each groups were analyzed with fully automated biochemistry. Results:The levels of CRP,IL-6,TNF-α,Scr,CYSC,UAER of NA group,MA group,CP groups were higher than control groups(P<0. 05),the levels of CRP,IL-6,TNF-α,Scr,CYSC,UAER of CP groups were higher than NA,MA group (P<0. 05). The levels of CD4+CD25+ Treg,IgG were lower than the control group (P<0. 05),while the levels of CD4+ CD25+ Treg,IgG of CP groups were higher than NA group,MA group (P<0. 05). The levels of IgA,IgM,Th17/Treg, CD4+ Th17 of NA group,MA group,CP groups were higher than control groups(P<0. 05). The levels of CRP,IL-6,TNF-α were positively correlated with Scr, CYSC, UAER ( P<0. 05 ) and were negatively correlated with Th17/Treg, CD4+CD25+ Treg, IgG ( P<0. 05). Conclusion:DN patients with micro inflammatory status and immune function disorder,through the control or elimination of pro-inflammatory factors,improve the immune function of DN patients to delay the occurrence and progress of DN patients has important significance.

Objective: To investigate the clinical efficacy of prednisone combined with aminomethylbenzoic acid in the treatment of patients with irritability purpura and its effects on inflammatory factors and coagulation function.Methods: Totally 98 cases of patients with irritability purpura were randomly divided into the observation group (n=49) and the control group (n=49).The control group was treated with prednisone, while the observation group was given aminomethylbenzoic acid injection on the basis of the control group.Both groups were treated for 4 weeks.The efficacy of the two groups was compared, and the changes of serum inflammatory factors and coagulation function before and after the treatment, the disappearance time of stomachache, purpura and arthralgia and adverse drug reactions were also observed and compared.Results: The total effective rate of the observation group (93.88%) was significantly higher than that of the control group (73.47%, P<0.05).After the treatment, the serum level of IL-12 increased, the IL-15 and IL-23 levels decrease, and the D-D dimer and Fib levels decreased in both groups;the serum level of IL-12 in the observation group was higher than that in the control group, and the IL-15 and IL-23 levels were lower than those in the control group (P<0.05);the D-D dimer and Fib levels in the observation group after the treatment were lower than those in the control group (P<0.05).The disappearance time of abdominal pain, purpura and joint pain in the observation group was significantly shorter than that in the control group (P<0.05).ECG, blood and urine routine, liver and kidney function were normal in both groups without serious adverse reactions.Conclusion: Prednisone combined with aminomethylbenzoic acid in the treatment of irritability purpura shows striking effects without obvious adverse reactions, and the actions may be related to reducing the inflammatory reaction and improving coagulation function, which is better than prednisone used alone.

Accidents, Occupational ; statistics & numerical data ; China ; Humans

Objective To investigate the effects of DDT (dichloro-diphenyl-trichloroethane) residuals in the surrounding environment of a pesticide plant on the health of women and children. Methods 50 pairs of children aged 6-10 years and their mothers were investigated during Jan-Jul, 2005. The venous blood samples were collected, the levels of DDT and its 4 metabolites (p,p’-DDE, p,p’-DDT, p,p’-DDD and o,p’-DDT) were determined by GC-ECD and the biochemical indexes of blood were assayed. Each participant completed a questionnaire for information on health history and lifestyle and underwent a prenatal health examination. Results The blood lipid levels were abnormal in 18 percent of mothers. The level of blood total DDT in mothers and children was 8.42 and 11.98 ng/ml respectively. o,p’-DDT and p,p’-DDD were not detected. The level of p,p’-DDE and total DDT in children’s blood was higher than that in the women’s. Conclusion DDT has been accumulated in some degree in the blood of women and children in the area.

Bone marrow mesenchymal cells (BMSCs) are regarded as donor cells in cell transplantation therapies for spinal cord injury (SCI) for they have the ability of favourable proliferation and multi-directional differentiation, and are easily isolated and culturd and have less immunological reaction. It has been confirmed that subarachnoid space injection is the most ideal delivery technique of BMSCs. Bone marrow mesenchymal stem cells transplantation is safe and its reconditioning role is certain for SCI in early clinical application. The mechanism of BMSCs promoting functional recovery after SCI is probably concerned with vicarious function, nerve trophism, immunosuppression and promoting axonal regeneration by BMSCs.
Animals ; Bone Marrow Cells ; cytology ; Humans ; Mesenchymal Stem Cell Transplantation ; methods ; Mesenchymal Stromal Cells ; cytology ; Spinal Cord Injuries ; surgery

[ABSTRACT]OBJECTIVETo explore the role and mechanism of IL-13 in regulating the differentiation of ciliated cells on cultured human primary nasal epithelial cells.METHODSHuman nasal epithelial cells were cultured in vitro and treated by IL-13, the differentiation of epithelial cells was observed by western blot detection ofβ-tubulinⅣ and ELISA detection of MUC5AC; the percentage of ciliated and goblet cells was quantified by cytospin followed by immunohistochemical staining; the expression level of central ciliary genes was detected by real-time PCR.RESULTSCompared with control group, IL-13 treatment for 14 day significantly decreased the percentage of ciliated cells and expression ofβ-tubulinⅣ, additionally increased the goblet cells and the secretion of MUC5AC; IL-13 treatment significantly reduced the expression of ciliary key transcription factors such as FOXJ1, RFX2 and RFX3, as well as basal body biogenesis genes like CCNO and CETN2.CONCLUSIONIL-13 inhibits the differentiation of human nasal ciliated epithelial cells, which may be by down-regulating the expression of ciliary key transcription factors and basal body biogenesis proteins.

Objective To explore the interactions between human leukocyte antigen ( HLA)-DRB1 gene polymorphism and environmental risk factors in gestational diabetes mellitus ( GDM ) pathogenesis.Methods Pregnant women who had prenatal cares in Obstetric Department , West China Second Hospital of Sichuan University were recruited from January 1st to December 31st in 2011.A prospective cohort study was conducted in the women who had a glucose challenge test ( GCT) or 75 g oral glucose tolerance test ( OGTT) during 24-28 gestational weeks.A total of 104 women diagnosed with GDM were randomly included in GDM group while another 103 normal women fell into the control group.The HLA-DRB1 polymorphism was detected by Polymerase Chain Reaction -Sequence Specific Primers ( PCR-SSP) method in both groups.The interactions between HLA-DRB1 polymorphism and environmental risk factors were analyzed based on the simple-case-study method.Results ( 1 ) There were 712 pregnant women with complete perinatal information during January 1st to December 31st, 2011, among whom 175 (24.6%) women were diagnosed with GDM.A logistic regression analysis showed that advanced maternal age (OR=1.081, 95%CI:1.027-1.138), imbalanced diet (OR=3.329, 95%CI:2.167 -5.116), high body mass index (BMI≥24.0 kg/m2) before pregnancy (OR=1.095, 95%CI:1.008 -1.190), HBsAg carrier status (OR=3.173, 95%CI:1.387-7.260) and family history of diabetes mellitus (DM) (OR=1.798, 95%CI:1.063 -3.041) were risk factors of GDM.(2) There were 49 HLA-DRB1 genotypes and 51 HLA-DRB1 genotypes in GDM group and the control group , respectively.We further compared the genotypes that occurred in over 3 cases in either group and found that HLA-DRB1*12,16 was only detected in 5 cases (5/103, 4.9%) in control group,and the difference was significant between the two groups (P=0.029).HLA-DRB1*11,16 and HLA-DRB1*09,09 were only detected in 4 cases (3.8%,4/104) and 5 cases (4.8%, 5/104) in GDM group respectively , but without significant differences between the two groups ( P >0.05 ).No significant difference was found in other genotype frequencies between the two groups ( P>0.05 ).( 3 ) Thirteen types of HLA-DRB1 allele were detected but no significant differences were observed in their frequencies between two groups ( P>0.05).(4) A positive interaction was detected between HLA-DRB1*07 polymorphism and advanced maternal ages (OR=5.952, 95%CI:1.314-26.970, P=0.022), while no interaction was found between HLA-DRB polymorphisms to other risk factors such as imbalanced diet , high body mass index ( BMI≥24.0 kg/m2 ) , HBsAg carrier status or DM family history.Conclusions Advanced maternal age, unbalanced diet, high body mass index (BMI≥24.0 kg/m2), HBsAg carrier status and DM family history are environmental risk factors of GDM in Chengdu.While HLA-DRB1*12,16 genotype may be a protective genotype for GDM.There is a positive interaction between HLA-DRB1*07 polymorphism and advanced maternal age which may play a critic role in GDM development.

Objective To detect the expressions of PCNA, Cyclin D1 and P27, which were related to cell proliferation and cell cycle in gastric carcinoma and precancerous lesion of gastric mucosa. Methods Tissue microarray technique was applied to construct a tissue microarray containing gastric carcinoma, precancerous lesions and normal gastric mucosa. Diagnosis of the tissue in the microarray was pathologically confirmed. Immunohistochemical method was used to assess the expression of PCNA, Cyclin D1 and P27 in all the samples of tissue microarray. Results The expressions of PCNA and Cyclin D1 in gastric carcinoma, gastric hyperplasia, and intestinal metaplasia tissues were higher than that in normal gastric mucosa. The expressions of P27 in gastric hyperplasia, intestinal metaplasia and gastric carcinoma tissues were lower than that in normal gastric mucosa. Conclusion Gastric carcinoma, precancerous lesion and normal gastric mucosa tissues present different degrees of expression of PCNA, Cyclin D1 and P27, either with a increasing trend or a decreasing trend. These changes in expression are all closely related to gastric carcinogenesis.

Objective To investigate the effects of fluoride on the cell viability, cell cycle, apoptosis, and expression levels of NF-?B in primary cultured rat hippocampal neurons. Methods The rate of cell survivor, distribution of cell cycle, the percentage of apoptotic cells and the mRNA expression level of NF-?B were respectively measured by methyl thiazolyl tetrazolium (MTT), flow cytometry (FCM), and reverse transcriptase polymerase chain reaction (RT-PCR) after the hippocampal neurons were incubated with 20, 40, and 80 ?g/ml sodium fluoride for 24 hours in vitro. Results Compared with the control group, the rate of cell survivor were significantly decreased in 80 ?g/ml fluoride-treated group (P

[Objective]To evaluate the efficacy of nerve transfer for reconstructing the sensory function of the sole.[Method](1)Select saphenous nerve as donor nerve for the patients with the sensory loss beneath ankle level:dissect and cut off the saphenous nerve at the medialposterior aspect at upper-middle 1/3 of the leg and divide the gastrocnemius to expose the tibial nerve at the medialposterior aspect of the tibia, cut off partly nerve fibre of the tibial nerve and then end-to-end anastomose to the proximal end of the saphenous nerve. (2) Select sural nerve as donor nerve for the patients with sensory loss of sole only:dissect and cut off the sural nerve at the posterior aspect of the lateral malleolus, expose the tibial nerve at the posterior aspect of the medial malleolus and then cut off partly nerve fibre of the tibial nerve. The sural nerve was comdicted from the subcutaneous tunel at the anterior aspect of the Achilles's tendon to the posterior aspect of the medial malleolus and end-to-end anastomose to the partial nerve fibre of the tibial nerve. [Result]All the 9 cases were followed up from 1.5 to 2 years(mean 2 l months). The SCV(sensory conduction velocity) of the tibial nerve was ranged from 36.1 to 41.2 m/s, mean 38.3 m/s and the amplitude of wave (peak-to-peak amplitude) was a range from 7 to 15.3?V, mean 11.2 ?V by orthodromic electrophysiologic techniques. All 9 cases regained the sense of pain and touch of the sole.Three cases restored their sense of two point discrimination. All the patients expressed their satisfaction with their ability of walk and no muscles atrophy of the foot. The sensory loss in donor region was oberserved only lateral part of the foot beneath the lateral malleolus (sural nerve as donor nerve) and a small part of the anterior aspect of the ankle(saphenous nerve as donor nerve).[Conclusion]Nerve transfer can reconstruct the sensory function of the sole effectively.