人外周血淋巴细胞核甲状腺激素受体测定及初步临床研究

本文用受体放射分析技术,建立人外周血淋巴细胞核T_3、T_4和rT_3受体测定法,并探讨其与甲状腺功能的关系。分离人外周血淋巴细胞采用聚蔗糖-泛影葡胺分层液密度梯度离心法。受体结合试验采用完整细胞分别与~(125)I-T_3、~(125)I-T_4、~(125)I-rT_3温育的方法,用0.0075％TritonX-100 SMT pH7.85溶液分离核,用Scatchard法分析受体结合的解离常数(Kd)和最大结合容量(MBC)。     

慢性硬膜下血肿机化一例

1 病历资料 患者男,68岁,既往体健,因右侧肢体麻木乏力及反应迟钝2个月入院.症状呈逐渐加重趋势,无癫痫样发作.追问病史,3年前有轻微头部外伤史,以后一直未就诊.来院时主要体征:心率为70次/min,血压为160/85 mm Hg(1 mm Hg=0.133 kPa).言语较少,尚能正确对答,反应稍显迟钝.颅神经检查未见异常.     

NUCLEAR 3,5,3'-TRIIODOTHYRONINE RECEPTORS (T_2R) IN CIRCULATING HUMAN LYMPHOCYTES FROM NORMAL, HYPER- AND HYPOTHYROID SUBJECTS

In order to investigate the relationship between the nuclear receptors and thyroid functions, we have determined the circulating lymphocyte nuclear T_3R in normal subjects, in patients with hyper-and hypothyroidism and in hypothyroid patients on thyroid hormone substitution therapy. In hyperthyroid and hypothyroid patients, the nuclear affinity (kd) for T_3 was similar to that of normal subjects. In hyperthyroidism maximal binding capacity (MBC) of nuclear T_3R was unaltered, whereas in hypothyroidism the MBC was significantly increased up to 8.06±0.80 fmol/μg DNA, which was 2.1 times that of the control group. In hypothyroid patients treated with 90—120 mg desiccated thyroid daily the nuclear MBC was 4.34±0.72fmol/μg DNA, not different from that observed in euthyroid subjects. It was found that the nuclear T_3R MBC was negatively correlated with serum levels of T_3, T_4, FT_3, FT_4 and rT_3, but positively correlated with serum TSH concentration in hypothyroid patients. These results indicated hormonal modulation of the nuclear T_3R which exhibited up regulation in hypothyroidism. The increase in nuclear T_3R number might reflect a compensatory mechanism for the maintenance of cellular homeostasis in face of decreased serum concentrations of thyroid hormones.     

骨髓间充质干细胞对急性出血坏死性胰腺炎大鼠血清细胞因子浓度的影响

白细胞过度激活及细胞因子级联反应是引起重症急性胰腺炎(severe acute pancreatitis,SAP)全身炎症反应综合征、多器官功能衰竭以至死亡的重要原因.本文通过观察骨髓间充质干细胞(bone mesenchymal stem cells,BMSCs)对急性出血坏死性胰腺炎大鼠血清TNF-α、IL-6、IL-10浓度变化以及胰腺组织形态学改变、肺功能的影响,初步探讨BMSCs在急性出血坏死性胰腺炎炎症早期的治疗作用及机制.     

糖尿病对甲状腺功能的影响——低T_3综合征

本文探讨糖尿病列甲状腺功能的影响,测定了30例未控制糖尿病患者血清T_3、T_4、FT_3、FT_4和TSH浓度。尽管临床上无甲状腺功能异常的表现,但血清低T_3者有15例(50%),低FT_3 10例(33.3%),低T_4 1例(3.3%)血清FT_4和TSH浓度除个别病例轻度增高外均正常。血清T_3/T_4比值显著降低,FT_3%和FT_4%显著增高。低T_3的产生与患者伴有的酮症酸中毒、高渗综合征、肺部感染等急性并发症显著相关。血清T_3浓度与空腹血糖和糖基血红蛋白水平呈负相关(P<0.01)。胰岛素治疗后,低T_3、低FT_3、低T_4等各项甲状腺功能试验均恢复正常。因此,血清FT_4测定是与甲减相鉴别的可靠依据,T_3、FT_3、T_4测定可作为判断糖尿病病情、预后和疗效的辅助指标。     

中医辨证论治对原发性甲状腺功能减退症的疗效及作用机理的初步探讨

中医辨证为阳虚的甲状腺功能减退症(简称甲减),用助阳温肾补气中药治疗可减轻临床症状和体征,中药合并小剂量甲状腺片能产生比单用小剂量甲状腺片更显著的疗效。研究这一问题,不仅为不能耐受甲状腺激素替代     

肇事肇祸凶杀案司法精神医学鉴定126例分析

随着我国社会的不断发展,肇事、肇祸精神疾病患者案例增多已引起全社会的关注,成为重大的社会问题之一。本文对2008年1月1日～2010年8月在宜昌市行司法精神医学鉴定案例中肇事、肇祸凶杀案例的鉴定进行分析,旨在探讨肇事、肇祸凶杀案的危险因素及对策,现报告如下:     

骨髓间充质干细胞对急性出血坏死性胰腺炎大鼠肺组织Toll样受体2/4mRNA表达的影响及意义

目的 研究骨髓间充质干细胞(BMSCs)对急性出血坏死性胰腺炎(AHNP)大鼠肺组织T0ll样受体(TLR)2/4表达的影响并初步探讨其机制.方法 采用逆行胰胆管牛磺胆酸钠注射制造AHNP大鼠模型,动物分为假手术组、胰腺炎组和BMSCs治疗组;流式细胞仪检测BMSCs表面标记阳性细胞率;RT-PCR方法检测肺组织TLR2/4mRNA表达变化;同时观察肺组织形态学改变,进行肺湿/干重比(W/D)测定.结果 与假手术组比较,胰腺炎组大鼠从3h时肺组织TLR2/4mRNA表达开始增高,在12 h时肺组织TLR2/4mRNA表达达到峰值;同时肺损伤加重,肺组织TNF-α浓度升高(P＜0.05).给予BMSCs治疗后,TLR2/4mRNA表达降低,肺损伤程度减轻,肺组织TNF-α浓度降低(P＜0.05).结论 急性出血坏死性胰腺炎时,组织内TLR2和TLR4mRNA表达上调,肺组织损伤加重.BMSCs可以明显抑制AHNP肺组织TLR2/4mRNA的表达,降低肺组织TNF-α浓度,从而减轻肺损伤.

Abstract：

Objective To investigate the effect of bone mesenchymal stem cells on Toll-like receptors (TLR) 2/4 expression in the lungs of rats with acute hemorrhagic necrotizing pancreatitis (AHNP). Methods Seventy SD male rats were randomly divided into sham-operation group (n=10), AHNP group(n=30) and MSCs-treated group(n=30). Masc rate of BMSCs with surface mark were measured by flow cytometer. TLR2/4mRNA expression in the the lung were measured by RT-PCR, and The ratio of Wet/dry and lung histological changs were observed. Results TLR2/4 mRNA could be detected in the lungs with low values in sham-operation group, markedly increased in 3 h, and peaked in 12 h in AHNP group (P＜0.05). Lung injuries were aggravated and the levels of TNF-α in the lung were increased (P＜0. 05) . Treatment with MSCs could effectively inhibit TLR2/4 mRNA expression and relieve lung injuries. The levels of TNF-α in the lung were decreased (P＜0.05). Conclusions The expression of TLR2/4 mRNA is increased in the lungs in AHNP and the lung injuries are aggravated. MSCs could markedly inhibit TLR2/4 mRNA expression in the lungs in AHNP, which would lead to relief of lung injury.