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Objective To investigate the personality traits, anxiety and depression in patients with leukemia. Methods A cross-sectional survey was performed in 120 patients with leukemia and 118 age and gender-matched controls. Personality was assessed using the Type A Behavior Pattern Questionnaire (TABPQ). Emotion was ascertained using the self-rating anxiety scale (SAS) and self-rating depression scale (SDS). The relationship between personality type A and anxiety and depression was evaluated by Pearson correlation analysis. Results The prevalence of personality type A was significantly higher in patients with leukemia than healthy controls [71.67 % (86/120) vs. 30.51 % (36/118), P< 0.01]. Patients with leukemia also had higher prevalence of anxiety and depression compared with healthy controls [36.67%(44/120) vs. 9.32%(11/118), P< 0.01; 29.17 % (35/120) vs. 5.93 % (7/118), P< 0.01]. Pearson correlation analysis showed that time-hurry (TH) and competition-hostility (CH) of personality type A correlated positively with anxiety (r=0.292, r= 0.277, respectively; both P< 0.05). Conclusion TH and CH of personality type A are associated with anxiety in leukemia patients.
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Objective To discuss the necessity of antibiotics usage in septoplasty , and to provide evidences for the standardization of the therapy and rational use of antibiotics in septoplasty. Methods Eighty-seven patients who had undergone septoplasty were randomly divided into three groups: Group A: without antibiotics; Group B: antibiotics only preoperative prophylaxis; Group C: antibiotics both preoperative and postoperative for five days. The clinical effect and complication rate were compared among three groups. Results There were no statistical significance among three groups for clinical effect and complication rate (P > 0.05). Conclusions The infection rate in septoplasty is very low , and the use of prophylactic antibiotics in elective septoplasty can neither improve efficacy nor reduce postoperative complications , so it is not essential.
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Objective To investigate thyroid hormone nuclear receptor expression in peripheral blood mononuclear cells (PBMCs) and its relation with injury severity in patients with severe multiple trauma.Methods Twenty-eight patients with severe muhiple trauma and another 26 healthy subjects as control were enrolled in the study.At 2 days after injury,the levels of free triiodothyronine (FT3),free thyroxine (FT4) and thyroid-stimulating hormone (TSH) in peripheral venous blood were determined by using immunoradiometry,and the expressions of mRNA of the thyroid nuclear receptors (TRα and TRβ) in PBMCs were measured by using real-time RT-PCR.Results FT3 concentration in peripheral venous blood was significantly decreased in patients with severe multiple trauma versus healthy subjects.Concurrently,the expressions of TR mRNA (TRα and TRβ) were significantly decreased in PBMCs of patients with severe multiple trauma compared with healthy subjects (TRα mRNA:3.86 ±0.54 vs.5.24 ± 1.17,P ＜0.05;TRβ mRNA:9.86±2.27 vs.13.57 ±2.45,P ＜0.05).Pearson correlation analysis showed that FT3 concentration and the expression of TRβ mRNA correlated negatively with injury severity score (ISS) in patients with severe multiple trauma (r=-0.445,-0.496,P=0.018,0.007).Conclusions These data provide the evidence of a lowered activity of the thyroid signaling pathway in PBMC and a significantly negative correlation between FT3 concentration and the expression of TRβ mRNA in respect of injury severity in patients with severe multiple trauma.Additional investigations are needed to further determine the roles of the thyroid signaling pathway in adverse outcomes in the wake of severe multiple trauma.
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Objective To investigate toil-like receptor 4 (TLR4) expression and activity in peripheral blood mononuclear cells(PBMCs) of obese patients.Methods PBMCs from 16 obese patients and 16 normal control subjects were collected.TLR4 and IκBα protein concentrations were measured in PBMCs by western blotting.TLR4 and interleukin-6 (IL-6) mRNA expression levels in PBMCs were measured by quantitative realtime PCR.The blood levels of glucose,insulin,free fatty acids (FFA),IL-6 and tmnor necrosis factor-α (TNF-α) were measured after an overnight fast.Results The levels of FFA,IL-6,TNF-α and homeostasis model assessment of insulin resistance index (HOMA-IR) in obese patients were higher than that of control group (FFA:(879 ± 64) μmol/L vs.(458 ± 48) μmol/L; IL-6:(2.20 ± 0.35) ng/L vs.(1.26 ± 0.25) ng/L; TNF-α:(1.96±0.32) ng/Lvs.(1.38 ±0.24) ng/L;HOMA-IR:(1.8±0.2) vs.(0.4±0.1) ;t=24.613,P=0.000;t =14.993,P =0.000;t =9.128,P =0.000;t =32.254,P =0.000).Increased TLR4 gene and protein expression were observed in PBMCs of obese patients compared with control group(TLR4 mRNA:(3.13±0.21) vs.(0.99 ± 0.03),t =54.758,P ＜ 0.05; TLR4 protein:(7.04 ± 0.42) vs.(2.53 ± 0.17),t =77.450,P ＜0.05).IκBα protein concentration in PBMCs of obese patients (2.52 ±0.16) was lower than in control group (4.00 ± 0.30,t =23.284,P ＜ 0.05),indicating elevated IKKβ/NF-κB signaling.The increase in TLR4 and NF-κB signaling was accompanied by elevated expression of the NFκB-regulated gene IL-6 ((2.55 ±0.15) vs.(1.03 ±0.11),t =53.981,P ＜0.05).Conclusion TLR4 expression and activity are increased in the PBMCs of patients with obesity and might involve in the development and progress of insulin resistance.
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<p><b>OBJECTIVE</b>To study the effect of palmitate on toll-like receptor 4 (TLR4) expression and signaling in vascular endothelial cells.</p><p><b>METHODS</b>Pig iliac endothelial cells (PIECs) were incubated with palmitate. TLR4 gene expression levels were measured by quantitative real-time PCR, and TLR4 and IκBα protein expressions by Western blotting. The expression levels of TLR4 protein on the surface of PIECs were quantified using flow cytometry. ELISA was employed to detect tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) concentrations in the cell medium.</p><p><b>RESULTS</b>Palmitate treatment significantly increased TLR4 mRNA and protein expression levels in PIECs compared with those in the control cells (4.73∓0.61 vs 1.25∓0.90, P<0.05; 5.79∓0.05 vs 4.07∓0.31, P<0.05). The expression levels of TLR4 on the cell surface significantly increased (38.070∓3.907 vs 29.390∓1.072, P<0.05), while IκBα protein level was significantly lowered in PIECs after palmitate treatment as compared with those in the control cells (2.04∓0.22 vs 3.98∓0.18, P<0.05). Palmitate treatment significantly elevated TNF-α (2.52∓0.30 vs 1.38∓0.26, P<0.05) and IL-6 (IL-6: 3.28∓0.32 vs 1.44∓0.28, P<0.05) concentrations in the cell culture medium.</p><p><b>CONCLUSION</b>Palmitate can enhance TLR4 expression and signaling in porcine vascular endothelial cells.</p>