Thoracic wall involvement by Hodgkin disease and non-Hodgkin lymphoma: CT evaluation

Thoracic computed tomographic (CT) scans of 250 patients with newly diagnosed or recurrent lymphoma revealed thoracic wall involvement in 24 patients (11 with Hodgkin disease, 13 with non-Hodgkin lymphoma). Thoracic wall involvement occurred without contiguous mediastinal or parenchymal involvement in 17 patients. Of these, 13 patients had masses beneath the pectoralis muscles or within the breast, and four had masses arising from the ribs. Five additional patients had mediastinal masses with thymic involvement and parasternal extension through the thoracic wall. Pulmonary parenchymal lymphoma with thoracic wall invasion was noted in the remaining two patients. In five of nine patients receiving radiation therapy, treatment plans were modified by CT demonstration of thoracic wall lymphoma.     

Large-scale association studies of variants in genes encoding the pancreatic beta-cell KATP channel subunits Kir6.2 (KCNJ11) and SUR1 (ABCC8) confirm that the KCNJ11 E23K variant is associated with type 2 diabetes

The genes ABCC8 and KCNJ11, which encode the subunits sulfonylurea receptor 1 (SUR1) and inwardly rectifying potassium channel (Kir6.2) of the beta-cell ATP-sensitive potassium (K(ATP)) channel, control insulin secretion. Common polymorphisms in these genes (ABCC8 exon 16-3t/c, exon 18 T/C, KCNJ11 E23K) have been variably associated with type 2 diabetes, but no large ( approximately 2,000 subjects) case-control studies have been performed. We evaluated the role of these three variants by studying 2,486 U.K. subjects: 854 with type 2 diabetes, 1,182 population control subjects, and 150 parent-offspring type 2 diabetic trios. The E23K allele was associated with diabetes in the case-control study (odds ratio [OR] 1.18 [95% CI 1.04-1.34], P = 0.01) but did not show familial association with diabetes. Neither the exon 16 nor the exon 18 ABCC8 variants were associated with diabetes (1.04 [0.91-1.18], P = 0.57; 0.93 [0.71-1.23], P = 0.63, respectively). Meta-analysis of all case-control data showed that the E23K allele was associated with type 2 diabetes (K allele OR 1.23 [1.12-1.36], P = 0.000015; KK genotype 1.65 [1.34-2.02], P = 0.000002); but the ABCC8 variants were not associated. Our results confirm that E23K increases risk of type 2 diabetes and show that large-scale association studies are important for the identification of diabetes susceptibility alleles.     

刑事警察心理健康调查分析

①目的了解刑事警察的心理健康状况，为心理干预提供依据。②方法对济宁市刑警队员进行症状自评量表（Symptom Checklist 90．SCL-90）、焦虑自评量表（Self—rating Anxiety state，SAS）、抑郁自评量表（Self—rating Depression scale，SDS）评定。③结果济宁市刑警队员的SCL-90、SAS、SDS量表评分与全国常模相比存在显著性差异。④结论。刑事警察职业是一种特殊职业，该职业对队员的心理健康有显著的影响，这种影响随着从事刑警工作时间的不同而改变。     

黄芪注射液对肝纤维化大鼠模型肝细胞胶原及TGF-β_1表达的影响

目的探讨黄芪注射液抗肝纤维化及对TGF-β1、Col-Ⅰ表达的影响。方法将35只SD大鼠随机分为正常对照组、CCl4诱导肝纤维化模型组和黄芪干预组。至造模第10周,处死所有大鼠,采用PV免疫组化方法检测Col-Ⅰ在各组肝组织中的表达,ELISA法检测TGF-β1在各组血清中的表达。结果经CCl4诱导成功建立大鼠肝纤维化模型,随着肝纤维化程度的进展,肝组织中Col-Ⅰ和血清中TGF-β1表达明显增强。在正常对照组、黄芪干预组和肝纤维化模型组肝组织中Col-Ⅰ表达的平均光密度值分别为0.298、0.315、0.503,模型组与前两组比较差异均有显著性（P〈0.01）,而黄芪干预组与正常组肝组织比较差异无统计学意义（P〉0.05）。在正常对照组、黄芪干预组和肝纤维化模型组大鼠血清中TGF-β1表达含量分别为491.29pg/L、629.91pg/L、959.09pg/L,呈递增趋势。模型组与前两组比较差异均有显著性（P〈0.01）,黄芪干预组与正常组比较其表达含量无显著差异（P〉0.05）。结论黄芪注射液可以显著抑制实验性肝纤维化大鼠模型的肝纤维化,这种抑制作用可能与抑制I型胶原蛋白及TGF-β1的表达有关。     

Parathyroid adenomas evaluated by Tl-201/Tc-99m pertechnetate subtraction scintigraphy and high-resolution ultrasonography

Thallium-201/technetium-99m pertechnetate subtraction scintigraphy of the parathyroid glands was performed in a prospective study of 33 patients who had undergone bilateral neck exploration for elevated serum calcium and serum parathyroid hormone levels. In 31 cases, the Tl-201/Tc-99m subtraction technique yielded an overall sensitivity of 81%, specificity of 99%, and accuracy of 94% for identifying solitary parathyroid adenomas. Tl-201/Tc-99m subtraction scintigraphy correctly identified 73% of parathyroid adenomas weighing less than 499 mg, 79% of those weighing 500-1,499 mg, and 100% of adenomas weighing more than 1,500 mg. In a subgroup of 24 patients with solitary parathyroid adenomas who underwent both scintigraphy and high-resolution sonography, the sensitivity, specificity, and accuracy of both procedures were similar.