Henoch-Scholein purpura(HSP)is a common systemic vasculitis of the small vessel in children,with a variety of clinical manifestations.The main diagnostic criteria include palpable skin purpura.Patients who have gastrointestinal tract as the main symptoms suffer clinically abdominal pain and gastrointestinal bleeding,they are easily misdiagnosed before skin purpura,the rate of misdiagnosis can be as high as 87.5%,and the main treatment is early application-oriented glucocorticoids.This review include etiopathogenisis,pathogenesis,pathology,clinical manifestations,auxiliary examination and treatment about gastrointestinal manifestations in HSP.

Abdominal Pain ; etiology ; Child ; Female ; Humans ; Ovarian Cysts ; complications ; Torsion Abnormality

Objective Abnormal activation of mitogen-and stress-activated kinase (MSK1) plays an important role in the development of various cancers.This study was to explore the effect of small interfering RNA (siRNA)-mediated MSK1-silencing on the proliferation of human nasopharyngeal carcinoma (NPC) cells and its underlying mechanism.Methods The siRNA vector targeting MSK1 was constructed and transfected into CNE2 cells, and the NPC cell line stably expressing MSK1 was established.Then the cells were divided into a blank control (without transfection of the plasmid), a negative control (with stable transfection of the negative control plasmid), and an experimental group (with stable transfection of the positive recombinant plasmid).The expressions of MSK1 mRNA and protein were detected by real-time quantitative PCR and Western blot, respectively, the proliferation of the cells determined by CCK-8 and colony formation assays, the cell cycles analyzed by flow cytometry, the level of histone H3 phosphorylation at Ser10 examined by Western blot, and The transcriptional activity and expression of the c-jun protein measured by dual-luciferase reporter gene assay and Western blot.Results Compared with the blank control, the inhibition rates of cell proliferation at 48, 72 and 96 hours were significantly reduced in the experimental group (P<0.05), and so were the colony formation ability of the cells (P<0.01) and the expression and transcriptional activity of the c-jun protein (P<0.05).In comparison with the negative control, the experimental group showed significant decreases in the rate of cell growth after 24 hours, the inhibition rates of cell proliferation at 48, 72 and 96 hours (P<0.05), the number of formed colonies ([221.00±20.08] vs [99.67±15.57] / 300 cells, P<0.01), the proportion of S-phase cells (P<0.01), and the expression of the c-jun protein in the CNE2 cells ([100.00±0.00] vs [48.77±10.71] %, P<0.05), but a remarkable increase in the percentage of G0/G1-phase cells (P<0.01).Furthermore, histone H3 phosphorylation at Ser10 was markedly reduced (P<0.01) but no significant change was observed in the expression of the total c-jun protein in the experimental group.Conclusion Knockdown of MSK1 using siRNA can significantly inhibit the growth and proliferation of CNE2 cells, which may be closely related to the decreased phosphorylation of histone H3 and subsequently down-regulated transcriptional activity of c-jun.

Objective To investigate the relationship between serum homocysteine (Hcy) and large artery atherosclerosis (LAA).Medods The consecutive stroke patients with LAA and small artery occlusion (SAO) were enrolled.The demographics,baseline clinical data,and laboratory test results were compared.Multivariate logistic regression analysis was used to identify the independent risk factors for LAA.Spearman correlation analysis was used to analyze the correlation between serum Hcy concentration and carotid plaque scores.Results A total of 117 patients with LAA and SAO were enrolled,42 were in the LAA group and 75 were in the SAO group.The plasma Hcy levels (median [interquartile range] 15.35 [12.20-20.43] μmol/Lvs.12.40 [10.40-15.00] μmoFL; Z=-2.540,P=0.011),the carotid plaque scores (6.30 ±4.11 mm vs.4.19 ±2.84 mm; t =2.952,P=0.004),and the proportion of plasma Hcy level at tertile groups of the patients (x2 =10.697,P =0.005) of the LAA plasma group were all significantly higher than those of the SAO group.Multivariate logistic regression analysis showed that the plasma Hcy concentration was in the third tertile (＞ 15.3 μmol/L),and it was an independent risk factor for LAA (odds ratio 4.739,95％ confidence interval 1.696-13.241; P =0.003).Moreover,there was a significant positive correlation between the serum Hcy concentration and the carotid plaque scores (r =0.245,P =0.008).Conclusions The plasma Hcy levels were positively correlated with the severity of carotid atherosclerosis.The Hcy ＞ 15.3 μmol/L was an independent risk factor for LAA.

Epiretinal membrane (ERM) is a relatively common macular disease that forms along the surface of the internal limiting membrane (ILM) of the retina to some reason.The pathogenesis is not clear.Microincision vitrectomy surgery has been confirmed as a minimally invasive and very safe modality of treatment.Deciding when to perform a vitrectomy can be difficult.There are many factors which can affect the postoperative visual acuity,such as age,the thickness of macular,integrity of photoreceptor inner segment/outer segment (IS/OS) junction.

Objective To study the role of RICTOR on rheumatoid arthritis-fibrobast-like synoviocytes (RA-FLS) activation.Methods FLS were isolated from the primary synovial tissues,which were obtained during joint replacement surgery or arthroscopy from three patients with RA.RA-FLS were stimulated with TNF-α at the dose of 10 ng/ml and 20 ng/ml for 48 h.The expression of RICTOR was detected by western blotting.Chemically synthesized RICTOR gene targeted for double-stranded siRNAs were transfected into RA-FLS by cationic liposome.After being transfected with RICTOR siRNA for 48 h,RA-FLS was treated with or without TNF-α for 48 h.The expression of RICTOR was evaluated by western blotting,and the cell viability was analyzed by methylthiazoltetrazolium (MTT) assay.The data were analyzed using analysis of variance (ANOVA) and LDL-t test.Results The expression of RICTOR protein was significantly higher in the TNF-α stimulated group (at the dose of 10 ng/ml and 20 ng/ml for 48 h) than that in the control group (bothP＜0.05),while the mean change of RICTOR/GAPDH ratios of band optical density x+s was 0.35±0.06 for the control group,0.60±0.09 for the TNF 10 ng/ml group and 1.10±0.12 for the TNF 20 ng/ml group.Moreover,the expression of RICTOR protein was obviously decreased in RICTOR siRNA transfection groupthan that in control after being trans-fected for 96 h (both P＜0.05),and ratios of control group,RICTOR (-)/TNF-α(-) group and RICTOR(-)/TNF-α(+) group was 0.498 4±0.140 1,0.012 8±0.002 0,0.042 5±0.027 3respectively.After the silence of RICTOR,the cell viability decreased in RA-FLS,no matter with or without TNF-α for 48 h later (both P＜0.05).Conclusion These results indicat that RICTOR might play an important role in the TNF-α associated activation of RA-FLS.

Objective To explore the association between glycated hemoglobin (HbA1c) level at admission and coronary plaque characteristics under intravenous ultrasound (IVUS) study in patients with non-ST-elevation acute coronary syndrome (NSTE-ACS). Methods 118 patients with NSTE-ACS were divided into the low(HbA1c ≤ 5.6％), medium(HbA1c 5.7％-6.4％)and high(HbA1c ≥ 6.5％)level groups based on admission HbA1c. IVUS was performed in all target lesions. Results As compared with the other two groups, patients with high level HbA1c had higher mean body weight index, higher co-morbidities of diabetes mellitus, dyslipidemia and non-ST-elevation acute myocardial infarction.The high HbA1c level group had more diffuse coronary atherosclerosis ,increased plaque burden and higher rates of positive remodeling, soft plaque and plaque rupture. Conculsions The HbAlc level of admission is associated with plaque vulnerability in NSTE-ACS patients.

Background The pathogenesis and development of cataract is associated with oxidative stress-induced apoptosis of human lens epithelial cells(LECs).BH3-only protein is a factor that can initiate apoptosis,and thus the apoptotic process is probably related to the activation of the c-Jun N-terminal kinase(JNK).However,the relationship between oxidative stress-induced apoptosis of human LECs and the JNK pathway remains to be illuminated.Objective This study was to investigate the effects of the JNK/c-Jun pathway and its target gene,Bim (Bcl-2 interacting mediator of cell death)and PU M A(p53 up-regulated modulator of apoptosis),on oxidative stressinduced apoptosis of human LECs.Methods The human LECs cell line(HLEC-B3)was cultured and passaged in DMEM with 10％ fetal bovine serum in vitro.Confluent cells were incubated in 24 well plates and divided into 4 groups.Hydrogen peroxide(H2O2)(50 μmol/L)was used to treat the cells for 4,8 or 12 hours,and cells without H2O2 treatment served as the control group.Apoptosis was detected using Hoechst 33258 staining and quantified by counting the number of cells with pyknotic nuclei.In addition,confluent cells were seeded in 6 well plates,and Western blot and RT-PCR were used to detect the expression of the caspase-3,c-Jun,Bim and PUMA proteins and their mRNA in HLEC-B3,respectively.The JNK/c-Jun pathway inhibitors,CEP11004 or SP600125,were added into cultured media with H2O2,and cells treated with DMSO or H2O2 only served as negative and positive control groups.The expression of the p-JNK,JNK,p-c-Jun,c-Jun,Bim,PUMA proteins was detected by Western blot and apoptosis was assayed using Hoechst 33258 staining.200 pmoL/L of Bim or PUMA small interference RNA(siBim or siPUMA)fragments were transfected into the cells for 24 hours,respectively,and H2O2 was then used to treat the cells for 8 hours.The expression of the Bim and PUMA protein and their mRNA in the cells was detected by Western blot and RT-PCR,respectively.Results After H2O2 treatment in HLEC-B3 cells for 4,8,or 12 hours,the rates of apoptosis were 4.30％±1.15％,27.08％±0.74％ and 46.59％±0.91％,showing a significant difference among them (F=1909.433,P=0.000),and those of the 4,8,12 hour groups were significantly increased in comparison to the control group(P =0.049,0.000,0.000).Compared to untreated cells,the levels of expression of the JNK,Bim,PUMA proteins and their mRNA in HLEC-B3 cells were significantly elevated.After the addition of CEP11004 or SP600125,the expression of these protein and mRNA in HLEC-B3 cells in the presence of H2O2 was significantly weaker than that in the DMSO control group(P =0.000,0.000).After the tranfection of siBim or siPUMA,the apoptosis rates of the H2O2 treated groups were significantly higher than those in the Bim-/-or PIMA-/-group (P＜0.05).Conclusions H2O2 can activate the JNK/c-Jun pathway and up-regulate the expression of its target genes Bim and PUMA in human LECs in a time-dependent manner.Inhibiting the JNK/c-Jun pathway and interfering with the expression of Bim and PUMA can protect human LECs against oxidative stress-induced apoptosis.

Objective To explore the methodology of the preventing the absorption after autog-enous fat granule mammaplasty, and the main point of the operative methods.. Methods The clinical data were reviewed in 30 cases of patients with liposuction combined with fat-grafting injection for breast mammaplasty in the past four years. The tumescent technique was used in liposuction and the volume of fat tissue aspirated was between 500 ml and 3250 ml. Using appropriate way we prepared pure fat granules and then evenly injected into the layer beneath the pectoralis major muscle, submam-mary layer and subcutaneous layer of the breast, respectively. Results The effect of the method was satisfying because sucking area was significantly decreased. From six months to 10 months follow-up, grafts showed no obvious absorption. The breast looked symmetry. Conclusion Fat grafting injection is a practicable method for breast mammaplasty. The key point is to use appropriate way to get pure fat granule and to prevent infection. It deserves to be recommended.

Objective To analyze the assessment results of external quality control and network operation of urinary iodine in local laboratories of Shandong Province,to evaluate the ability of consistent analysis; and to provide a reliable laboratory quality assurance for epidemiological surveillance and control of iodine deficiency disorders (IDD) and reliable decision-making.Methods Z-scores of the assessment results of external quality control of urinary iodine in local laboratories of Shandong Province were analyzed from 2000-2013.Results The feedback rate of urinary iodine in local laboratories of ShandongProvince was 100.0％ from 2000-2013; the qualified rate was 100.0％(14/14),100.0％(14/14),92.9％(13/14),100.0％(14/14),92.9％(13/14),100.0％ (14/14),100.0％ (14/14),100.0％ (14/14),92.9％ (13/14),100.0％ (17/17),100.0％ (17/17),94.1％ (16/17),100.0％ (17/17),and 100.0％ (17/17),respectively.The total qualified rate of Z-scores between Zs in local laboratories was 100.0％ (214/214)and within Zs was 98.6％ (211/214).Conclusion The test abilities of urinary iodine in local laboratories of Shandong Province are steady; the overall results are satisfactory,but some laboratories need to improve.