醒痴方加针刺对老年性痴呆患者血浆同型半胱氨酸的影响

目的探讨醒痴方加针刺在脾肾两虚、痰浊阻窍型轻-中度老年性痴呆（AD）治疗中的疗效。方法临床观察60例脾肾两虚、痰浊阻窍型轻-中度AD患者,采用随机对照方法将患者分成三组,中医组、西医组及中西医结合组各20例。中医组给予醒痴方加针刺治疗;西医组口服都可喜、脑复康片治疗;中西医结合组口服西药、醒痴方并行针刺治疗,三组的疗程均为4周。观察治疗前后患者血浆Hcy、MMSE量表的变化,并观察不良事件和副反应。结果经治疗4周后,口服西药、醒痴方并行针刺的中西医结合组的中医总疗效、对MMSE量表积分的改善、对AD患者的检测指标（血浆Hcy）的改善均优于单纯中西医及单纯西医组（P〈0．05）。结论在常规西药治疗的基础上,醒痴方加针刺的中西医结合方案对脾肾两虚、痰浊阻窍型轻-中度AD患者疗效确切,临床试验中未发现该方案有不良反应,可考虑作为AD患者的常规治疗方案。     

Expression of Notch signalling-related genes in normal and differentiating rat dental pulp cells

Notch signalling is of fundamental importance to various processes during embryonic development and in adults. The possible role of Hey1, an important Notch signalling component, in odontoblast differentiation was evaluated in this study. Primary cultured dental pulp cells, derived from upper incisors of 5-week-old Wistar rats, were placed in α-modification of Eagle's minimal essential medium supplemented with 10% Fetal Bovine Serum (FBS), and ascorbic acid (AA) and β-glycerophosphate (β-GP), with or without dexamethasone, and cultured on dishes coated with collagen type IA for 7 days. Conventional and real-time Polymerase Chain Reaction (PCR) was performed to determine the expression of Notch-related genes and dentin sialophosphoprotein as a marker of odontoblast differentiation. Dentin sialophosphoprotein and Hey1 expression was significantly increased and decreased in the presence of AA + β-GP compared with controls, respectively. These findings suggest that Hey1 may be a negative regulator in odontoblast differentiation.     

糖尿病肾病患者Hcy、MMP-2和HbAlc水平联合检测的临床价值

目的探讨同型半胱氨酸(Hcy)、基质金属蛋白酶-2(MMP-2)和糖化血红蛋白(HbAlc)联合检测在糖尿病肾病(DN)中早期诊断中的应用价值。方法将103例DN患者根据尿白蛋白排泄率(UAER)分为无白蛋白尿组、微量白蛋白尿组和临床白蛋白尿组,另取同期门诊的健康体检者37例作为对照组,比较4组间Hcy、MMP-2和HbAlc水平的变化,应用Pearson's相关性分析和ROC曲线对各指标进行评价。结果 DN组患者Hcy和HbAlc水平明显升高,MMP-2水平明显降低,与对照组相比差异有统计学意义(P0.05),且微量白蛋白尿组和临床白蛋白尿组与无蛋白尿组差异存在统计学意义(P0.05);DN患者的Hcy、MMP-2和HbAlc水平与UAER呈显著正相关(r=0.77、0.56、0.63,P0.05);Hcy、MMP-2和HbAlc联合检测的灵敏度、特异度和检出率均高于各独立指标。结论 Hcy、MMP-2和HbAlc联合检测对DN患者早期肾功能的损伤较为敏感,在预防、延缓DN中有重要的临床价值。     

Pelviureteric obstruction in infancy

Of 33 infants with pelviureteric obstruction, most presented in the first month of life with an abdominal mass and most were males. Half of these patients had bilateral renal pathology. The association between cystic dysplasia in the hydronephrotic kidney and contralateral cystic renal abnormality in patients with unilateral pelviureteric obstruction is noted. There were 34 pyeloureteroplasties performed on 27 patients, mostly with good results, even in patients with bilateral renal pathology.     

妊高征患者治疗前后血浆leptin和血清Hcy、NPY检测的临床价值

目的：探讨了妊高征患者治疗前后血浆leptin和血清Hcy、NPY水平的变化及临床意义。方法：应用放免法和酶联法对33例妊高征患者进行了治疗前后血浆leptin和血清Hey、NPY检测,并与35例正常健康人作比较。结果：妊高征患者在治疗前血浆leptin和血清Hcy、NPY均非常显著地高于正常人组（P〈O．01）,经治疗1个月后与正常人组比较仍有显著性差异（P〈0．05）。结论：检测妊高征患者血浆leptin和血清Hcy、NPY水平的变化已被认可用于疗效观察和预后判断。     

Silk peptides inhibit adipocyte differentiation through modulation of the Notch pathway in C3H10T1/2 cells

Silk protein is a biocompatible material that has been used in many biotechnological applications and exhibits body fat-lowering effects. Recent studies have shown that silk peptides increase expression of osteogenic markers in osteoblast-like cells. Because osteogenic and adipogenic differentiation from common mesenchymal progenitor cells are inverse processes and often regulated reciprocally, we hypothesized that silk peptides might suppress adipocyte differentiation. We therefore endeavored to evaluate the effects of silk peptides on adipocyte differentiation in C3H10T1/2 cells. We find that silk peptides inhibit lipid accumulation and morphological differentiation in these cells. Molecular studies show that silk peptides block expression of adipocyte-specific genes such as peroxisome proliferator-activated receptor γ and its targets, including aP2, Cd36, CCAAT enhancer binding proteinα. Silk peptides appear to inhibit adipogenesis by suppression of the Notch pathway, repressing the Notch target genes Hes-1 and Hey-1. In addition, these peptides inhibit endogenous Notch activation, as shown by a reduction in generation of Notch intracellular domain. N-[N-(3.5-difluorophenacetyl)-L-alanyl]-S-phenylglycine t-butylester, compound E, and WPE-III-31C, which are all known Notch signaling inhibitors, block adipocyte differentiation to an extent similar to silk peptides. Together, our data demonstrate that silk peptides can modulate adipocyte differentiation through inhibition of the Notch signaling and further suggest potential future strategies for treating obesity and its related metabolic diseases.