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To investigate the effects of chemerin on helper T cells 9 (Th9)/regulatory T cells (Treg) in patients with psoriasis and the potential molecular mechanisms. Methods: Twenty-five patients with psoriasis and twenty healthy volunteers were selected for this study. CD4+ T cells were isolated from peripheral blood of samples by magnetic bead separation. The levels of chemerin and its receptor chemR23 were detected by real-time RT-PCR and ELISA. CD4+ T cells isolated from the healthy volunteers were treated with different concentrations of chemerin (50, 100, 150, 200 ng/mL), then cell viability was detected by MTT assay. The expression of inflammatory molecules and Th9/Treg were detected by ELISA and flow cytometry, respectively. Results: The expressions of chemerin and chemR23 in peripheral blood from patients with psoriasis were higher than those in healthy control (both P<0.05). The Th9/Treg was higher in patients with psoriasis than that in healthy control (P<0.05). After treating CD4+ T cells with 150 ng/mL of chemerin, the levels of IL-6, IL-9 and IL-17 were increased significantly (all P<0.05). Additionally, Th9/Treg was increased (P<0.05) and the cell balance was disrupt. However, the effects of chemerin on CD4+ T cells were reversed by silencing of chemR23 (all P<0.05). Conclusion: Chemerin may regulate the immune balance for Th9/Treg in CD4+ T cells from patients of psoriasis.
Subject(s)
Humans , Chemokines , Flow Cytometry , Intercellular Signaling Peptides and Proteins , Psoriasis , T-Lymphocytes, Helper-Inducer , T-Lymphocytes, RegulatoryABSTRACT
<p><b>OBJECTIVE</b>To study the cytomorphologic features of anaplastic lymphoma kinase (ALK)-rearranged pulmonary adenocarcinoma.</p><p><b>METHODS</b>The morphologic features in 153 pulmonary adenocarcinoma cytology specimens encountered during the period from September, 2011 to April, 2015 in Shanghai Cancer Hospital were retrospectively reviewed. Fluorescence in-situ hybridization (FISH) and/or immunohistochemistry (Ventana D5F3) for ALK gene rearrangement were carried out. The samples studied included 34 pleural effusion specimens, 40 endobronchial ultrasound-guided transbronchial needle aspirates (EBUS-TBNA) and 79 fine needle aspirates of palpable masses on body surface.</p><p><b>RESULTS</b>Thirty-nine cases (25.5%) of ALK-rearranged samples were identified by FISH and/or immunohistochemistry, including 3 cases diagnosed by FISH and 36 cases by both technologies. The median age of the ALK-positive group was 50 years, significantly younger than that of the ALK-negative group (60 years old, P = 0.002). Only 4 of the ALK-positive patients were smokers, which was significantly less than that of the ALK-negative group (P < 0.01). In ALK-positive group, 3 cases showed cribriform pattern with prominent nucleoli, 3 cases showed cribriform pattern with mucin-rich cells and 8 cases showed extracellular mucus with mucin-rich cells. The above cytomorphologic patterns were significantly less common in ALK-negative tumors (P < 0.01).</p><p><b>CONCLUSIONS</b>ALK-rearranged lung adenocarcinoma is associated with certain distinctive morphologic patterns, including cribriform architecture, presence of prominent nucleoli, mucin-rich cells and extracellular mucus, which can be observed in cytology specimens (including conventional smears and cell block sections). These findings, when combined with clinical features, may give clues to detection of ALK-positive cases.</p>
Subject(s)
Humans , Adenocarcinoma , Genetics , Pathology , Biopsy, Fine-Needle , China , Gene Rearrangement , Immunohistochemistry , In Situ Hybridization, Fluorescence , Lung Neoplasms , Genetics , Pathology , Receptor Protein-Tyrosine Kinases , Genetics , Retrospective StudiesABSTRACT
Background and purpose:Due to the lack of cost-effective pre-treatment predictors for advanced cervical squamous cell carcinomas treated with concurrent chemoradiotherapy (CCRT), both baseline circulating CD4+CD25+CD127Low/- regulatory T cell (Treg) count and serum squamous cell carcinoma antigen (SCC-Ag) level were measured for this feasibility study. Methods: Peripheral blood samples were collected from 44 patients with stageⅡB-ⅣA cervical squamous carcinomas before CCRT. Flow cytometry immunophenotyping and enzyme-linked immunosorbent assay were used for circulating CD4+CD25+CD127Low/-Treg count and serum SCC-Ag level testing,respectively. Clinical and pathological characteristics were retrospectively reviewed to analyze the predictive value of the 2 indexes. Results:The baseline circulating CD4+CD25+CD127Low/-Treg count was lower in the patient group with positive treatment response than in the group with negative response [(8.78±2.80)%vs (10.95±2.56)%, P<0.05], and the serum SCC-Ag level showed no signiifcant difference between the 2 groups. No correlation was detected between these 2 markers (Spearman’rho=-0.093, P=0.540). Determined by plotting receiver operating characteristic curves, the best cut-off points were 9.76%for circulating CD4+CD25+CD127Low/-Treg count and 9.50 ng/mL for serum SCC-Ag level, respectively. Univariate analysis showed that pretherapeutic circulating CD4+CD25+CD127Low/-Treg count (OR=1.901, 95%CI:1.112-3.219, P=0.017), but not serum SCC-Ag level (OR=0.998, 95%CI:0.001-4.253, P=0.897), was predictive of clinical response to CCRT. Multivariate Logistic regression analysis revealed that pre-treatment CD4+CD25+CD127Low/-Treg count was an independent predictor for clinical response to CCRT (OR=3.115, 95%CI:1.253-7.742, P=0.014). Conclusion:Pretherapeutic circulating CD4+CD25+CD127Low/-Treg count is a feasible method to predict clinical response to CCRT in patients with advanced cervical squamous cell carcinomas.
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BACKGROUND:Vertebral column resection is the frequently mentioned spinal orthopaedic concept. Due to the high requirement of the operation skil , difficulty and more complications, the previous studies have reported from different aspects, and many researchers have focused on the analysis of complications, that may be related with the procedure and manner. OBJECTIVE:To analyze the efficacy and complications of posterior vertebral column resection combined with titanium screw rod fixation for the treatment of severe spinal deformity. METHODS:We retrospectively analyzed 48 patients with severe spinal deformity who treated with posterior vertebral column resection and titanium screw rod fixation, with an average removal of 1.6 vertebral. The patients were fol owed-up for 15-64 months. The Cobb angle (coronal plane and sagittal plane) of the patients before treatment, after treatment and in the final fol ow-up was analyzed, and the relative complications of the surgery were analyzed. RESULTS AND CONCLUSION:The patients with spinal deformity were divided into five categories, included kyphoscoliosis (n=11), severe scoliosis (n=20), congenital spinal deformity (n=4), spherical kyphosis (n=3), and angular kyphosis (n=10). The average coronal plane deformity angle of the patients was corrected from 84° preoperation to 35° postoperation, with the total correction rate of 54%. The average sagittal plane deformity angle was corrected from 90° preoperation to 42° postoperation, and the sagittal plane Cobb angle was decreased for 48°. The mean operation time was 545 minutes (204-1 355 minutes), the intraoperative blood loss was 1 610 mL (50-8 244 mL), and the average blood loss was 65%. After treatment, 31 cases had complications, including 13 cases of intraoperative neurological dysfunction (observed through electrophysiological monitoring and wake), permanent neurological dysfunction did not occur after timely treatment. The posterior vertebral column resection and titanium screw rod fixation can obtain better effect in the treatment of severe spinal deformity, but the procedure has high complications and is difficult for operation.
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OBJECTIVE I understand all types of hospital clinical specimens sent from the main Gram-negative bacillus distribution and resistance,for clinical anti-infection treatment and provide the basis for the rational use of antibiotics.METHODS Clinical submitted the sputum,Blood,Urinary tract secretions,Wound secretions,Humoral etc all kinds of specimens from the conventional training,use Viekt-ATB auto-system,and K-B paper disk diffusion in accordance with NCCLS standards was employed for drug sensitivity tests.RESULTS July 2006 June 2007 Clinical specimens were isolated various major G-Bacillus 707,Habitat of the top three are:Escherichia coli,Klebsiella pneumoniae,Pseudomonas aeruginosa,16 kinds of antibiotics resistance in varying degrees.three major imipenem Enterobacteriaceae bacteria resistant rates are 0.0%,Highly resistant to ampicillin,to cefoperazone/sulbactam,piperacillin/tazobactam resistance rate of 3.3% to 34.0%.In non-fermented bacteria,In addition to Stenotrophomonas maltophilia Aeromonas natural resistance to imipenem,The remaining resistance to imipenem rate of
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Objective To evaluate a modified operation for the treatment of urethral hymenal fusion. Methods 45 case underwent the modified meatoplasty.The key points of the operative procedure were excision of the pathological changes at the external meatus and widened the distance between the external meatus and ostium vaginae to 1.2～1.5 cm. Results 43 case (96%) have been followed up for 3～48 months with 37(86%) cured of the disease and 2(5%) patients were improved.The operation failed in 4(9%). Conclusions The modified operation was claimed to be simple and effective for the treatment of urethtal hymenal fusion.
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AIM: To study the expression of c-fos mRNA in brain following moderate lateral fluid percussion brain injury in rats, and to observe the temporal patterns of its expression following percussion. METHODS: Male Sprague-Dawley rats were divided into normal control, sham operation control and injury group. The rats of injury group subjected to moderate lateral fluid percussion injury (0.2 mPa). The injury groups were then subdivided into 5 min, 15 min, 30 min, 1h, 2h groups according to the time elapsed after injury. The expression of c-fos mRNA was studied with reverse transcription polymerase chain reaction (RT-PCR) semi-quantitatively.RESULTS: At 5 min after percussion, the induction of c-fos mRNA was increased, and remained elevated up to 2 h after brain injury.CONCLUSION: The induction and expression of the c-fos mRNA in cortex and brain stem after fluid percussion brain injury were increased rapidly.
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AIM: To study the expression of c-jun in brain stem following moderate lateral fluid percussion brain injury in rats, and to observe the temporal patterns of its expressions following percussion.METHODS: Male Sprague-Dawley rats were divided into normal control, sham operation control and injury groups. The rats of injury group subjected to moderate lateral fluid percussion injury (0.2 mPa), and then were subdivided into 5 min, 15 min, 30 min, 1 h, 2 h, 4 h, 8 h and 12 h groups according to the time elapsed after injury. The expression of c-jun was studied by immunohistochemistry and in situ hybridization. RESULTS: After percussion for 15 min, Jun positive neurons increased in brain stem progressively, and peaked at 12h. At 5min after percussion, the induction of c-jun mRNA was increased, and remained elevated up to 1h-2h after brain injury. CONCLUSION: The induction and expression of the c-jun in brain stem after fluid percussion brain injury were increased rapidly and lasted for a long time.
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This paper reports 11 cases died of cerebral injuury. Grossly,various degree of cerebral contusions and subardchnoul hemorrhages were found in 10 cases, hemorrhags of brainstem in 3 cases and of hy-pohalamus in 1 case' Under light and scanning electron microscope, cerebral cortex contusions werefound in 10 cases, contusions and hemorrhages of white matter 3 cm far from the area of cerebral cortex contusbos in 6 cases, contusions of hypohalamus in 8 cases, of pons in 5 cases, of bulb in 4 cas-es, of lateral vertricular wall in 8 cases and of optic nerve in 4 cases. Degeneration, necrosis and is-chemical changes of nerve cells were found in 10 cases. Degeneration, disarrangement, breakage and necrosis of axon and myelin sheath in cerebrun and brainstems were Observed in 9 cases. In 7 out of 9cases, retfract balls of broken axons were seen. The causes of death of the cerebral trauma and the diffrential diagnosis were briefly discussed.