Objective To observe the expression of Klotho and Na+/Pi cotransporter in high phosphorous-induced rats with 5/6 nephrectomy and its relationship with vascular calcification,as well as to investigate the effect of early intervention by sodium thiosulfate (STS) on the progression of vascular calcification.Methods Either 5/6 nephrectomy (n=21) or sham operation (n=14) was conducted on 35 Sprague Dawley rats,who were then fed with high phosphorus (HP) diet or normal phosphorus (NP) diet for 16 weeks respectively.The rats were divided into 5 groups as follows:(1) remnant kidney rats receiving HP diet (NHP,n=7),(2) remnant kidney rats receiving NP diet (NNP,n=7),(3) sham operation rats receiving NP diet (SNP,n=7),(4) sham operation rats receiving HP diet (SHP,n=7),(5) remnant kidney rats receiving HP diet with STS (THP,n=7).The treatment group was given STS intraperitoneally three times a week for 16 weeks.At the end of the 16th week,rats tail artery blood pressures were tested,serum creatinine (Scr),calcium (Ca2+),phosphorus (P3+),FGF23,iPTH and urine protein were examined.Throacic aorta and kidney were then removed.Vascular calcification was confirmed by Von kossa staining.Klotho and Pit-1 expression in aortas were determined by immunohistochemistry.Renal lesion was determined by PASM-Masson staining.Renal Klotho and NaPi-2a mRNA were determined by real time RT-PCR.Results After 16 weeks,Scr,p3+,FGF23,iPTH,uric protein and blood pressure were significantly higher in NHP than those in SNP rats (all P ＜ 0.05).PASM-Masson staining revealed typical renal pathology of chronic renal failure in NHP group.With the treatment of STS,THP rats showed significant decrease in Scr,t3+,FGF23,iPTH,uric protein and blood pressure by comparison with NHP group (all P ＜ 0.05).Significant vascular calcification was found in NHP group while NNP and SHP group occasionally had vascular calcification;THP group had marked alleviation of vascular calcification.The aorta and renal expression of Klotho decreased remarkably while expression of Pit-1 and NaPi-2a increased significantly in NHP compared with SNP group (all P ＜ 0.05).Accordingly,the aorta and renal expression of Klotho increased and Pit-1 and NaPi-2a decreased significantly in THP compared with NHP group (P ＜ 0.05).Conclusions The early intervention of sodium thiosulfate might regulate Klotho and Na +/Pi cotransporter expression in both aorth and kidney,decreasing serum phosphate,delaying progression of vascular calcification and improving renal function.

Objective To investigate the role of nurses in civil cardiac death organ donation work.Methods Cooperating,propagating and promoting in civil cardiac death organ donation; building a bridge between the families of organ donation,donor coordinators,physicians and hospital ethics committees; participating in organ donation medical ethics assessment work; cooperating with the doctors do intend to maintain organ donation,access and preservation; protecting donors remains.Results During the time of July 2011 to November 2013,we successfully completed 52 cases of civil cardiac death organ donation cooperating with doctors,and got 41 liver,which entered the national organ allocation system for distribution.Conclusions The nurses will play a more and more important role in work of civil cardiac death organ donation cooperating with doctors.

Objective To analyze the distribution status of soil-transmitted nematodes infection for prevention and treatment.Methods The inquiry field test and grade random sampling were emplyed on a group of people naturally selected in Shanxi Province.The people were examined through pathogen test and statistical diagnosis.Results A total of 7 726 people were investigated.Soil-transmitted nematodes infection rate was 18.86%.Ascaris,enterobius,trichuris,and hookworm was 15.87%,11.46%,0.82%,and 0.04% respectively.The intensity of ascaris infection was 97.74%,1.60%,and 0.66% respectively in light,moderate,and serious conditions,and that of trichuris infection was 88.89%,7.41%,and 3.70% respectively in light,moderate,and serious conditions.Conclusions Soil-transmitted nematodes infection rate is lower than that in 1992.Its cases are mainly distributed in rural areas and schools,closely related to education level.Improving water-drinking conditions and personal hygiene is still key to the prevention and control of the infections.

The old clinical teaching pattern seems less complied to the current condition,due to its specific features problems in the clinical teaching of gynecology seem more significant.Therefore,it is of great importance to apply advanced technology to improve teaching methods,stress medical ethics education,and safeguard the patients′ legal rights of informed consent and privacy.

Three hundred and ninety five patients with bronchial asthma were randomly divided into 4 groups:patients in group A received inhaled beclomethasone dipropionate(BDP)100μg and Zhichuan decoction;patients in group B were given inhaled BDP 200μg;patients in group C took Zhichuan decoction only;patients in group D were given inhaled BDP 100 μg.Methacholine airway reactivity,pulmonary ventilation function,serum acidophilia cationic protein and symptom score were determined before and after treatment.All above indicators were significantly improved in groups A and B,which suggests that Zhichuan decoction could reduce hormone dosage in control of airway chronic inflammation,reduction of airway reactivity and improvement of pulmonary ventilation function of patients with bronchial asthma.

Aim To explore the inhibitory effect of isobavachalcone (IBC)on migration and invasion of
tongue squamous cell carcinoma Tca81 1 3 cells and its possible mechanism.Methods Tca81 1 3 cells were
treated in different concentrations of IBC in vitro.Cell proliferation was detected by MTT;Wound healing as-say and Transwell chamber assay were used to detect the ability of cell migration and invasion;Western blot was applied to detect the expression of Akt,p-Akt, MMP-2 and MMP-9 proteins.Results IBC could in-hibit the proliferation of Tca81 1 3 cells in a concentra-tion-and time-dependent manner.IBC can reduce cell migration and invasion.Western blot showed that IBC could an decrease the expression of p-Akt,MMP-2 and MMP-9 proteins in a concentration-dependent manner.
However,the level of Akt was not affected by the con-centration of IBC treatment.Conclusion IBC could inhibit the proliferation, migration and invasion in Tca81 1 3 cells and its mechanism may be associated with the down-regulation of MMP-2 and MMP-9 pro-teins and the inhibition of phosphorylation of upstream Akt.

Animals ; Electromagnetic Fields ; Embryo, Mammalian ; metabolism ; Female ; Mice ; Pregnancy ; Proto-Oncogene Proteins c-fos ; biosynthesis ; genetics ; RNA, Messenger ; biosynthesis ; genetics ; Reverse Transcriptase Polymerase Chain Reaction

As the progenitor of most cell components in the hematopoietic microenvironment, mesenchymal stem cells (MSC) exhibit self-renewal and multilineage differentiation capacity. Through direct interaction with hematopoietic cells, secreting extracellular matrix and factors, MSC maintain the integrity of hematopoietic microenvironment and regulate hematopoiesis accurately. This review summarized the function of MSC in hematopoietic regulation, such as secretion of cytokines supporting hematopoiesis, MSC expression and adhesion molecules interacting with hematopoietic cells, and supportive effects of transplantation combining MSC with HSC on hematopoietic reconstruction, and its clinical perspectives.
Cell Communication ; Cytokines ; biosynthesis ; Hematopoiesis ; physiology ; Hematopoietic Stem Cells ; physiology ; Mesenchymal Stromal Cells ; physiology

Objective To investigate the effect of high altitude hypoxia on chronic inflammation in rats.Methods Forty SD rats were randomly divided into 4 groups: control group (Con),chronic inflammation group (CI),high altitude hypoxia group (HH),high altitude hypoxia+chronic inflammation group (HH+CI).Rats in CI group were injected with lipopolysaccharide (LPS) (0.5 mg/kg) through the caudal vein twice a week for 4 weeks.Rats in HH+CI group were treated just as CI group was,but together with HH group rats were settled in a hypoxic environment of 6000 m altitude for three days.Pathological changes in lung tissues were observed by hematoxylin eosin stain.The peripheral white blood cell count and classification were measured.The levels of interleukin-6 (IL-6) and tumor necrosis factor alpha (TNF-α) in serum and lung tissues were detected by enzyme-linked immunosorbent assay (ELISA).Changes in IL-6 expression in rat lung tissues were observed by Western blotting.Results After LPS and high altitude hypoxia exposure,inflammatory cells infiltration and alveolar capillary expansion were observed in rats' lung tissue.Compared with Con group,not only the peripheral white blood cell count,but also the level of IL-6 and TNF-α in serum and lung tissue increased in CI and HH group(P<0.01).IL-6 expression levels observed by Western blotting were also increased in HH and CI group(P<0.01).High altitude hypoxia and chronic inflammation interacted(P<0.01).The peripheral white blood cell count was higher in HH+CI group than in other groups,and IL-6 and TNF-α expressions in lung tissue were increased(P<0.05).Conclusion An LPS-induced chronic inflammation model in rats is successfully obtained,and high altitude hypoxia could aggravate chronic inflammation.

BACKGROUND: It has been recently found that endothelial progenitor cells (EPCs) can promote injured endothelial healing. There is a supposition that in-stent restenosis possibly correlates with the number and/or activity of EPCs.OBJECTIVE: To comparatively observe the number and activity of circulating EPCs in patients with and without coronary in-stent restenosis, and to verify the above-mentioned supposition.DESIGN, TIME AND SETTING: This study, a comparative observation, was performed at the Department of Internal Medicine, Beijing Shijitan Hospital, Department of Internal Medicine, First Hospital, Peking University, and Department of Physiology and Pathophysiology, Peking University Health Science Center between March 2005 and May 2007.PARTICIPANTS: According to the coronary angiography, 15 patients were recruited into the restenosis group and 17patients with patent stents were selected into the control group.METHODS: Total peripheral mononuclear cells were isolated from blood of patients with restenosis or control subjects by Ficoll density-gradient centrifugation. These cells were plated on dishes coated with human fibronection. After 7 days in culture, the nature of adherent cells was confirmed by direct fluorescent staining with the use of 1,1'-dioctadecyl-3,3,3',3'-tetramethylindocarbocyanide percholate-labelled acetylated low-dencity lipoprotein and fluorescein isothiocyanate-labeled ulex europaeus agglutinin-Ⅰ under a laser scanning confocal microscope. Cells demonstrating double-positive fluorescence were identified as differentiating EPCs.MAIN OUTCOME MEASURES: After 7 days of culture, EPCs were counted under an inverted microscope. Proliferation of EPCs was determined using the MTT colorimetric assay. Migration of EPCs was assayed using the scratch assay qualitatively. EPCs adhesion was performed by replating cells on fibronectin-coated dishes and then counting the adherent cells.RESULTS: The number of EPCs was significantly reduced in patients with in-stent restenosis compared with that in the control group (P = 0.001). The proliferative activities were impaired in the in-stent restenosis group than in the control group(P < 0.05). In addition, the migrative activities were also impaired in the in-stent restenosis group, but no significant difference in adherent activities existed between the two groups (P > 0.05).CONCLUSION: The number and functional activities of proliferation and migration of EPCs were decreased in patients with in-stent restenosis, which may be related to the number and/or activities of EPCs.