超敏C反应蛋白在乳腺疾病诊断中的临床研究

目的 探讨乳腺疾病患者血清超敏C反应蛋白（hs-CRP）的含量变化.方法 采用胶乳凝集反应法检测52例乳腺炎、37例乳腺囊性增生、29例乳腺囊肿、20例乳腺肌瘤和45例健康对照者血清中hs-CRP含量,并进行对比分析.结果 乳腺炎、乳腺囊性增生组的血清中hs-CRP含量与对照组比较,差异有统计学意义（P＜0.05）;乳腺囊肿,乳腺肌瘤组与对照组比较,差异无统计学意义（P＞0.05）.结论 炎症反应性疾病患者hsCRP升高,而良性肿瘤患者hs-CRP含量正常.     

细胞因子在软组织损伤修复中的作用

在关节软骨、肌腱、韧带等软组织损伤修复中，细胞因子可能有以下几种作用：(1)减少炎症反应；(2)使疤痕组织形成降至最小程度；(3)促进正常软组织的功能恢复。阐述了几种主要细胞因子在软组织损伤修复中的作用。     

Pathogenetic and prognostic roles of bloodborne fibrocytes in asthma

Bloodborne fibrocytes are cells mobilized from the bone marrow, which express surface antigens commonly ascribed to hematopoietic progenitors and have phenotypic and functional characteristics similar to those of immature mesenchymal cells. They exhibit predominant proinflammatory or profibrotic activities at tissue sites, depending on the host’s response to environmental insults and on the characteristics of the cell infiltrate and cytokine milieu. In patients with allergic asthma, fibrocytes egress from the bone marrow and are recruited into the airways after every allergen exposure and during viral infections. Recruited fibrocytes amplify the inflammatory responses driven by T helper type 2 lymphokines and favor viral replication and further inflammation on respiratory virus infections. Persistently elevated blood fibrocyte counts and persisting airway fibrocytosis are present in patients with chronically undertreated or corticosteroid-insensitive asthma, and are linked to an enhanced risk of adverse outcomes because of the major involvement of fibrocytes in the development of structural abnormalities that lead to chronic airflow obstruction in these patients. Consequently, blood fibrocyte count is an emerging biomarker of asthma control and disease progression and its clinical applicability as a new outcome measure deserves further evaluation in large clinical trials.     

The immune response to short-duration exercise in trained,eumenorrhoeic women

Few studies have characterised the immune response to exercise of different intensities and durations in women. In those that have, baseline hormone levels and training status were not always adequately controlled for. Here, leucocyte and cytokine profiles of 11 aerobically trained, eumenorrhoeic females (33 ± 5 years) in the early follicular phase of the menstrual cycle were characterised after 30-min exercise at 3 intensities: 90% lactate threshold (LT), LT, and 110% LT. Proposed cytokine response mediators were quantified: plasma lactate and basal oestradiol concentrations. Intensity-dependent increases occurred in total white blood cells and lymphocyte counts (P < 0.001). Elevated plasma IL-6 and IL-1ra concentrations post-exercise [F = 12.38, P < 0.01 and F = 7.65, P < 0.05, respectively] were not intensity-dependent, indicating that cytokine release may be better associated with exercise duration than intensity in trained women. Changes in plasma IL-1ra and basal oestradiol (ρ = ?0.893, P < 0.01) were correlated at intensities above LT only. These findings suggest a role for plasma sex hormones in moderating the exercise-induced immune response in women. However, the associations observed did not account for the magnitude of the cytokine response observed, and future studies should explore contributions of other potential mediators following short-duration exercise.     

大鼠急性递增负荷运动后神经内分泌相关指标的变化

采用Bedford跑台递增负荷运动模型对大鼠进行运动训练,观察该运动模型动物运动后不同时间的神经内分泌等指标的变化,结果提示:该运动模型动物在运动后,下丘脑—垂体—肾上腺皮质等多项神经内分泌指标以及体内抗脂质过氧化系统在运动后5h内仍未恢复到安静时水平。     

4周有氧运动对肥胖儿童少年动脉粥样硬化致病相关因子的影响

目的:观察4周有氧运动对肥胖儿童少年运动减肥后体脂率、胰岛素、血脂、血管慢性炎症因子等动脉粥样硬化致病相关因子的影响。方法:以参加2011年上海巅峰运动减肥夏令营的30名肥胖儿童少年为研究对象,进行4周中小强度有氧运动为主结合适当饮食控制的减肥运动训练。分别于运动减肥的前一天和最后一天测试受试对象身高、体重、体脂率等身体形态指标及血液指标。结果:运动后肥胖儿童少年体脂率显著下降,空腹血清胰岛素、血脂水平与运动前相比均有明显改善,血清脂蛋白酯酶水平明显升高,脂酰辅酶A胆固醇酰基转移酶-2、肿瘤坏死因子-α、血管内皮细胞生长因子水平显著降低。结论:4周有氧运动可以明显降低肥胖儿童少年的肥胖程度、胰岛素水平,明显改善胰岛素敏感性和血脂代谢,一定程度上抑制血管内皮功能障碍及炎性病变,对预防肥胖青少年成年后发生动脉粥样硬化具有积极的作用。     

The role of CRP and inflammation in the pathogenesis of age-related macular degeneration

Age-related macular degeneration (AMD) is a complex, degenerative and progressive disease involving the multiple genetic and environmental factors that can result in severe visual loss. The etiology of AMD is not well understood. Many theories exist and feature mechanisms of oxidative stress, atherosclerotic-like changes, genetic predisposition and inflammation. The most recent clinical studies appointed to a great role of inflammation and C-reactive protein (CRP) in the pathogenesis of AMD. There is a large body of evidence indicating the association of CRP with endothelial dysfunction, oxidative stress and production of reactive oxygen species (ROS), as well as with lipid status disorder in AMD patients. According to recent studies, CRP is definitely not only the inflammatory marker but also a mediator of development of the vascular disorders in the retinal circulation. The results obtained from the present studies may help our understanding the pathogenesis of the retinal vascular disease associated with high levels of CRP.     

“酃”——雷电与神龙崇拜的文字记录

酃是汉代未水入湘处（今衡阳市城东）的地名，之前曾名寵和龐。自赵宋以来，是今湘东炎陵县名。其偏旁“霝”同雷、电（雹）、震、霆为同一个词族，是古人对雷电自然现象的文字记录。反映了先民对雷电由自然崇拜到龙之神灵崇拜的认识过程，也是我国龙崇拜源于雷电崇拜的一个典型例证。而“酃”则以地名的形式保存了这一历史记录。     

Construction of chimeric immunogens: Bioactive fragment of human IL-1β or polytuftsin (PT) capable of eliciting immune responses to HIV peptides

In this study, we have examined the effect of linking of bloactive fragment of human IL-1β (163–171) or polytuftsin (PT, a synthetic polymer of natural immunomodulator “tuftsin”) with synthetic peptides of HIV on the induction of immune response to the synthetic peptides. A panel of synthetic peptides representing defined region of gp41, gp120 and gag were used as antigens. Immunomodulators linked peptides (i.e. peptide-IL-1β or peptide-PT) or peptide dimers were employed for immunization in Balb/c mice. Mice immunized with the peptide-immunomodulator develop effective T-cell proliferation,in vitro cytokine release and higher antibody production, but not with peptide dimers. We also found that peptide-immunomodulators induced high level of IgG2a antibody production. Furthermore, there was a positive correlation between the levels of cytokine (IL-2 & IFN-γ) and IgG isotype production. Thus it would appear that incorporation of IL-1β fragment or PT selectively enhances the Th1 type response to these peptides and may therefore be important for virus neutralization and clearance. However, the effect of IL-1β fragment was found to be more pronounced than polytuftsin. Such an approach may provide effective vaccination against other infectious diseases.     

钙通道拮抗剂对炎性关节炎大鼠行为学、血清中相关炎性因子的干预研究

目的:探讨HWTX-I作为一种新型钙通道拮抗剂,对炎性关节炎大鼠行为学、血清中相关炎性因子的干预作用,探索HWTX-I在大鼠佐剂性关节炎模型中的抗伤害效应;方法:采用大鼠佐剂性关节炎模型模拟炎性关节炎的病症状态,建立大鼠硬脊膜外腔插管法,利用相关的抗伤害制剂进行脊髓硬膜外腔和灌胃给药干预,对炎性关节炎大鼠进行行为学评价,并检测不同分组的大鼠血清中TNF-α、IL-4和IL-10水平差异;结果:1)炎性关节侧疼痛评分和踝周长测量结果表明,HWTX-I能明显减轻关节疼痛和炎性水肿,效果好于Ibu-profen;2)ELISA法检测到HWTX-I组能明显降低血清中TNF-α水平,并使IL-4、IL-10水平明显,较Ibuprofen具有更好的抗伤害作用;结论:钙离子的流动与炎症发生发展密切相关,对于有效防治运动后关节损伤引发的炎症具有重要意义。