Aged ; Back ; Carcinoma, Medullary ; metabolism ; pathology ; Diagnosis, Differential ; Female ; Humans ; Melanoma ; metabolism ; pathology ; secondary ; surgery ; Melanoma-Specific Antigens ; metabolism ; S100 Proteins ; metabolism ; Skin Neoplasms ; metabolism ; pathology ; surgery ; Thyroid Neoplasms ; metabolism ; pathology ; secondary ; surgery

Objective To explore the role of TLR2 and TLR4 in the pathogenesis of Henoch-Schonlein purpura ( HSP) by investigating their expression at mRNA and protein levels in peripheral blood mononuclear cells ( PBMCs ) and their influences on Th 1/Th2 immune response in children with HSP . Methods 64 hospitalized children with HSP in the Affiliated Hospital of Qingdao University Medical Col -lege from October 2011 to November 2012 were enrolled in the study .They were further divided into non-He-noch-Schonlein purpura nephritis ( NHSPN ) group ( n =36 ) and Henoch-Schonlein purpura nephritis (HSPN) group (n=28).30 age-matched healthy children from Child Health Division of the same hospital were selected as controls .The expression of TLR2 and TLR4 at mRNA level in PBMCs were detected by re-al-time fluorescent polymerase chain reaction .The expression of TLR2 and TLR4 at protein level and T cells subset were detected by flow cytometry .The levels of IFN-γ, IL-4 and IL-6 in plasma were determined by enzyme-linked immunosorbent assay (ELISA).Results (1)Compared with the control group , the expres-sion of TLR2 and TLR4 at mRNA and protein levels were remarkably increased in children with HSP , espe-cially in HSPN group.(2)Compared with the control group, the percentage of CD3+T cells and CD3+CD4+T cells were down-regulated in HSP group , but the percentage of CD 3+CD8+T cells and CD3+HLADR+T cells were up-regulated.(3)The level of IFN-γand the ratio of IFN-γ/IL-4 in plasma from children with HSP were significantly lower than those of the controls , while the level of IL-4 and IL-6 were remarkably higher than those of the controls .(4)The expression of TLR2 and TLR4 at protein level in PBMCs from chil-dren with HSP showed significant positive correlations with the expression of TLR 2 and TLR4 at mRNA level and plasma concentration of IL-4 and IL-6, but a negative correlation with the ratio of IFN-γ/IL-4.Conclu-sions The aberrant activation of TLR 2 and TLR4 might be correlated with the immunological pathogenesis of HSP by enhancing Th2 immune response.The hyper-activation of TLR2 and TLR4 might result in renal injury in patients with HSP .

Objective To explore the efficacy of Xipayigingiva consolidation gargle for root canal flushing. Methods 543 teeth in 543 patients with acute or chronic pulpitis or apical periodontitis who needed root canal treatmentwere divided into three groups by completely randomized design. The three groups wereXipayigingiva consolidation gargle group, hydrogen peroxide group, and sodium hypochlorite group. Conventional pulp chamber incision, pulpectomy and root canals preparation were used for the affected teeth. Three different rinsing solutions were applied to flush root canal. One week later , signs and symptoms were observed , and success rate was assessed in patients by comparing among the three groups. Results Regardless of duration of disease course and patients′ oral health situation, the success rate did not differ significantly among the three groups (P > 0.05). Conclusions Xipayi gingiva consolidation gargle has the same effect as sodium hypochlorite and hydrogen peroxide. It can be used as an alternative for flushing root canal.

Long non-coding RNA (lncRNA) has a wide range of biological functions in epigenetic, cell cycle, cell differentiation and other life activities, and that affect the development and differentiation of immune cells and the maintenance of homeostasis in the immune system. CD4⁺ T cell subsets are heterogeneous cells with different functions, including promoting the proliferation and differentiation of T cells, B cells and other immune cells, and coordinating related functions between immune cells. Autoimmune disease (AID) is a chronic inflammatory disease caused by an autoantigen immune reaction. lncRNA and CD4⁺ T cell subsets are involved in the occurrence and progression of the disease. This article reviews the relationship between lncRNA and the differentiation of AID CD4⁺ T cell subsets.

Objective To explore the expressions and clinical significance of Toll-like receptor (TLR) 3 and TLR4 in peripheral blood mononuclear cells in Henoch-Schsnlein purpura nephritis (HSPN) children.Methods According to their 24-hour urinary albumin and whether children with HSP had renal damage or not,105 cases were divided into group A,B and C.Group A were children only with HSP but without renal damage,while group B were children only with HSPN not proteinuria and group C were children with both HSPN and proteinuria.Thirty healthy children were in healthy control group(group N).Flow cytometry (FCM) and real-time PCR detected the mRNA and protein expressions of TLR3 and TLR4 in peripheral blood mononuclear cells.Results 1.The mRNA and protein expressions of TLR4 in peripheral blood mononuclear cells were significantly higher in group A,B,C than those in group N (F =37.33,24.01,all P ＜ 0.05).The mRNA and protein expressions of TLR4 in group C were much higher than those in group A and B (all P ＜ 0.05).Meanwhile,there was no significant difference between group A and B(all P ＞0.05).2.Moreover,there was a positive relationship between protein expression of TLR4 and 24-hour urinary albumin in group C(r =0.69,P ＜ 0.01).3.Expression of TLR3 was of no significant difference in all groups(F =0.86,1.78,all P ＞ 0.05).4.The expression of TLR4 mRNA had a positive correlation with protein expression of TLR4(r =0.61,P ＜ 0.0 1).Conclusions Expressions of TLR4 in peripheral blood mononuclear cells significantly increased and had a positive correlation with urinary protein excretion from HSPN in children.This implied that aberrant activation of TLR4might be relevant to the development of HSPN.

The article introduces the content and organization of the training program for newly recruited nurses in the three hospitals of Massachusetts General Hospital, Mayo Clinic, and University of Illinois Chicago Medical Center in the United States. This article also summarizes the characteristics and highlights of the program implementation, and discusses and analyzes the training program by combining the current situation of newly recruited nurses training in my country, and makes suggestions for further improvement in the future.

OBJECTIVETo investigate the protective effect of progesterone against high intraocular pressure-induced ischemia-reperfusion (IR) injury.

METHODSTwenty-four SD rats were randomly divided into normal control, IR model, dimethyl sulfoxide (DMSO) solvent treatment group, and progesterone treatment group. In the latter 3 groups, retinal IR injury was induced by intraocular injection of saline. In the progesterone group, intraperitoneal injections of 4 mg/kg progesterone were administered 30 min before and 2 h after ischemia, and an equivalent volume of DMSO was used in the DMSO group. The content of malondialdehyde (MDA) and superoxide dismutase (SOD) activity were measured by spectrophotometer after the treatment, and the pathological changes of the retina were observed by transmission electron microscope and light microscope.

RESULTSSix hours after reperfusion, the content of MDA in the model group was significantly higher than that in the normal control group (P<0.01), but lower than that in progesterone treatment group (P<0.01); reverse changes in SOD activity was observed. In the model group, the inner nuclear layer and nerve fiber layer became thinner with obvious cellular pathologies including nuclear condensation, mitochondria vacuolization and endocytoplasmic reticulum swelling. Progesterone treatment markedly alleviated these pathologies in the inner nuclear layer and nerve fiber layer of the retina.

CONCLUSIONProgesterone offers protection of the retina against IR injury in SD rats by increasing SOD activity and decreasing MDA content in the retina.

Animals ; Dimethyl Sulfoxide ; Female ; Ischemia ; etiology ; pathology ; Male ; Malondialdehyde ; metabolism ; Ocular Hypertension ; complications ; Progesterone ; pharmacology ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Reperfusion Injury ; etiology ; prevention & control ; Retina ; metabolism ; Retinal Vessels ; physiopathology ; Superoxide Dismutase ; metabolism

Animals ; Cell Hypoxia ; Cells, Cultured ; Chemokine CXCL12 ; genetics ; metabolism ; Endothelial Cells ; cytology ; metabolism ; Female ; Gene Expression Regulation ; Hypoxia-Inducible Factor 1, alpha Subunit ; genetics ; metabolism ; Immunohistochemistry ; Male ; Pulmonary Artery ; cytology ; RNA Interference ; RNA, Messenger ; genetics ; metabolism ; Reverse Transcriptase Polymerase Chain Reaction ; Swine

Objective: To evaluate the surgical prediction accuracy of Proplan CMF software for zygomatic reduction surgery using L-shaped osteotomy. Methods: Pre-and-postoperative 1-year CBCT data of 26 patients with zygomatic arch hypertrophy were imported in Proplan CMF software during 2014 Jan. to 2016 Jun., the 3D models were reconstructed for simulation of L-shaped osteotomy, characteristic landmarks were selected and 3D point measurement system was established. The measurement result were analyzed by one-way ANOVA. Meanwhile, the overlap color grading charts of preoperative and simulated images were also observed. Results: The facial width, bilateral zygomatic process angle and facial width index were [(128.56±2.72) mm, (106.87±2.53)°, (108.56±3.02)°and 1.41±0.03] in postoperative result, [(129.49±2.26) mm, (108.68±2.40)°, (108.85±3.02)°and 1.42±0.03]in simulated result and [(135.45±2.45) mm, (102.50±2.60)°, (103.41±2.56)°and 1.48±0.05] in preoperative result, with significant difference between preoperative and postoperative result, or between preoperative and simulated result (P<0.05), while no significance between postoperative and simulated result (P>0.05). The soft tissue zygomatic process distance was(153.25±2.58) mm in preoperative result, (150.23±2.76)mm in postoperative result , (149.36±3.27)mm in simulated result, with no significance between any of two groups result (P>0.05). The zygomatic process distance and bilateral zygomatic process tragal distance were (126.35±2.56) mm, (68.75±2.15) mm and(68.86±3.21) mm in postoperative result, showing significant differences compared with preoperative result [(120.16±3.18) mm, (74.58±3.19) mm and(76.14±3.15) mm] and simulated result [(118.86±3.45) mm, (73.85±3.57) mm and(76.87±2.58) mm] respectively(P<0.05), while zygomatic arch distance was not statistically different among the three groups(P>0.05). It indicated that predictive accuracy of facial width, facial width index, zygomatic process angle, soft tissue zygomatic arch distance was high but the soft tissue zygomatic process distance and zygomatic process tragal distance was relatively low. Meanwhile, the color overlay image showed that predictive accuracy was not good in the zygomatic region while the zygomatic arch area was high. Conclusions The predictive accuracy of Proplan CMF software for zygomatic arch hypertrophy is relatively high except for the zygomatic region. Further improvement of the CMF software is needed.

OBJECTIVETo establish a mouse model of humoral immune response by immunization with rabbit red blood cells (RRBCs).

METHODSThe mice were immunized with RRBCs and the serum hemolysin level was measured by micro-hemolysis spectrophotometry.

RESULTSThe peak time needed for hemolysin production against RRBCs was 6 days after the immunization, and 20% RRBCs in a total volume of 0.2 ml was optimal for intraperitoneal injection. Hydrocortisone (25 mg/kg) and cyclophosphamide (20 mg/kg) inhibited hemolysin production. Mannatide (4 mg/kg) produced no significant effect on serum hemolysin level in normal mice, but significantly potentiated hemolysin production in immunosuppressed mice induced by cyclophosphamide (20 mg/kg).

CONCLUSIONIntraperitoneal RRBC injection is feasible for establishing mouse models of humoral immune response.

Animals ; Erythrocytes ; immunology ; Female ; Guinea Pigs ; Hemolysin Proteins ; blood ; Immunity, Humoral ; Immunization ; Male ; Mice ; immunology ; Models, Animal ; Rabbits