良恶性胶质瘤的核仁组织区定量研究

使用胶质银染色技术对80例胶质瘤进行核仁组织区(AgNORs)定量研究.其中星形细胞瘤49例(星形细胞瘤Ⅰ级13例,Ⅱ级11例,Ⅲ级25例),室管膜瘤16例(良性室管膜瘤6例,恶性室管膜瘤10例),髓母细胞瘤15例.观察结果表明:星形细胞瘤Ⅰ级和Ⅱ级之间平均每核含Ag—NORs颗粒数相差显著(P<0.05),星形细胞瘤Ⅰ级和Ⅲ级、Ⅱ级和Ⅲ级及良、恶性室管膜瘤之间平均每核AgNORs颗粒数均相差非常显著(P<0.01).提示AgNORs定量研究有助于良、恶性胶质瘤的鉴别,对肿瘤的分级有一定参考价值.     

THE EFFECT OF BASIC FIBROBLAST GROWTH FACTOR SLOW-RELEASE MICROCAPSULES ON ANGIOGENESIS IN INFARCTED RABBIT MYOCARDIUM

ＩＮＴＲＯＤＵＣＴＩＯＮ　　Ｂａｓｉｃｆｉｂｒｏｂｌａｓｔｇｒｏｗｔｈｆａｃｔｏｒ (ｂＦＧＦ)ｉｓａｎｉｎｔｅｎｓｅｌｙｍｉｔｏｇｅｎｉｃａｓｗｅｌｌａｓａｎｇｉｏｇｅｎｉｃｓｉｎｇｌｅｃｈａｉｎ 1 7 2ｋＤｐｅｐ ｔｉｄｅ ,ｗｈｉｃｈｉｓｗｉｄｅｌｙｄｉｓｔｒｉｂｕｔｅｄｉｎｂｌｏｏｄｖｅｓｓｅｌｓ ,ｃａｒｄｉａｃｔｉｓｓｕｅｓａｎｄｏｔｈｅｒｏｒｇａｎｓ .ＩｎｖｉｖｏａｄｍｉｎｉｓｔｒａｔｉｏｎｏｆｂＦＧＦｌｅａｄｓｔｏｍｙｏｃａｒｄｉｕｍａｎｇｉｏｇｅｎｅｓｉｓｔｈａｔｈａｓｂｅｅｎｄｅｍｏｎ…     

Mechanisms of selective head cooling for resuscitating damaged neurons durin g post- ischemic reperfusion

Objective To evaluate the efficacy and the mechanism of application of selective head cool ing on neuronal morphological damage during postischemic reperfusion in a rabbit model. Methods 168 New Zealand rabbits were randomized into three groups. Group Ⅰ ［n=24, (38 ±0. 5)℃, non- ischemic control］; Group Ⅱ ［n=72, (38±0. 5)℃, normothermic reperfusion］; Group Ⅲ ［n=72, (28±0. 5)℃, selective head cooling, initiated at the beginning of reperfusion). Animals in three subgroups (n=24, each) of Gr oup Ⅱ and Group Ⅲ had reperfused lasting for 30, 180 and 360 min respectively . Using computerized image analysis technique on morphological changes of nucle us, the degree of neuronal damage in 12 regions were differentiated into type A (nor mal), type B (mild damaged), type C (severely damaged) and type D (necrotic). F ourteen biochemical parameters in brain tissues were measured. Results As compared with Group Ⅰ, the counts of type A neuron decreased progressively, and those of type B, C and D increased significantly in Group Ⅱ during reperfus ion (P&lt;0. 01). In Group Ⅱ, vasoactive intestinal peptide, b- endorphine, p rostacyclin, T3 and Na(+), K(+)- ATPase were correlated with the changes of ty pe A; b- endorphine and thromboxane with type B; glucose and vasopressin with ty pe C; Na(+), K(+)- ATPase, glutamic acid, T3 and vasoactive intestinal peptide with type D (P&lt;0. 05). As compared with Group Ⅱ, the counts of type A inc reased, and those of type C and D significantly decreased in Group Ⅲ (P&lt;0. 01). In Group Ⅲ, Ca(2+), Mg(2+)- ATPase were correlated with the chang es of type A, C and D (P&lt;0. 01). Conclusion Selective head cooling for sex hours during postischemic reperfusion does improv e neuronal morphological outcomes in terms of morphological changes.     

上皮性卵巢肿瘤患者外周血和腹水T淋巴细胞凋亡和Fas表达特点及其与CA125关系的研究

目的了解卵巢肿瘤患者外周血和腹水T淋巴细胞凋亡和Fas（CD95）表达特点及其与CA125的关系。方法应用流式细胞术测定18例Ⅲ～Ⅳ期卵巢癌患者（Ⅲ～Ⅳ期组）,15例Ⅰ～Ⅱ期卵巢癌患者（Ⅰ～Ⅱ期组）,Ⅲ～Ⅳ期组患者手术加化疗后（治疗后组）,18例良性上皮性卵巢肿瘤患者（良性组）,6例库肯勃氏瘤患者（库肯勃氏瘤组）及20例正常体检女性（正常组）的外周血T淋巴细胞凋亡和Fas表达,并测定上述治疗前的卵巢癌患者和库肯勃氏瘤患者的腹水T淋巴细胞以及良性组中10例患者（良性盆腔积液组）的盆腔积液T淋巴细胞的凋亡和Fas表达。同时测定卵巢癌患者外周血CA125的水平。结果Ⅲ～Ⅳ期组患者的外周血T淋巴细胞凋亡阳性率为5．55（3．57～9．62）％,明显高于正常组、良性组、Ⅰ～Ⅱ期组（P＜0．01）和治疗后组（P＜0．05）,Ⅲ～Ⅳ期组患者外周血T淋巴细胞的Fas表达强度为51±10,明显高于正常组（P＜0．05）。Ⅰ～Ⅱ期组和Ⅲ～Ⅳ期组患者腹水T淋巴细胞的凋亡阳性率,T淋巴细胞的Fas阳性率,Fas表达强度分别为17．41（7．06～24．56）％,（57±16）％,（55±11）％和34．06（17．03～44．65）％。（66±12）％,（70±24）％,均高于良性盆腔积液组的0．78（0．67～I．44）％,（37±6）％,（43±6）％（P＜0．01）。Ⅲ～Ⅳ期组的凋亡阳性率和Fas阳性率均明显高于库肯勃氏瘤组（P＜0．01）。Ⅰ～Ⅱ期组患者腹水T淋巴细胞凋亡与血清CA125水平呈正相关（r=0．77,P=0．009）。血清CA125＞500KU／L的卵巢癌患者腹水T淋巴细胞的凋亡高于CA125≤500KU／L的患者（P=0．009）。结论（1）T淋巴细胞凋亡上调出现于较早期卵巢癌患者的腹腔局部和晚期患者的外周血,而且晚期卵巢癌腹水T淋巴细胞凋亡和Fas表达高于库肯勃氏瘤患者,反映了原发卵巢癌腹腔局部免疫缺陷的特殊性。（2）有效的治疗可以降低卵巢癌患者外周血T淋巴细胞的凋亡。（3）卵巢癌腹水T淋巴细胞的Fas表达显著上调,是卵巢肿瘤免疫治疗的重要靶点。（4）CA125能间接反映卵巢癌腹腔局部的免疫状况。     

钙离子ATP酶2a基因修饰的骨髓干细胞移植治疗大鼠心肌梗死后心力衰竭的研究

目的比较肌浆网钙离子ATP酶2 a(SERCA2 a)基因治疗,骨髓干细胞(MSC)移植以及SERCA2 a基因修饰的细胞移植治疗慢性缺血性心力衰竭的效应,评价MSC作为治疗基因的细胞载体策略的可行性。方法制作心力衰竭大鼠模型并随机分为4组。SERCA2 a基因治疗组(组Ⅰ,7只),MSC细胞移植组(组Ⅱ,7只),基因修饰的细胞移植组(组Ⅲ,8只),腺病毒空载体对照组(组Ⅳ,7只)。检测各组SERCA2 a基因,蛋白表达及活性。超声心动图及有创血流动力学评价心脏功能。HE染色观察心室形态。结果组Ⅰ,组Ⅱ,组Ⅲ比对照组Ⅳ心功能和血流动力学明显改善。治疗后组Ⅱ(2.9 mm±0.2 mm)和组Ⅲ(3.0 mm±0.1 mm)大鼠室壁厚度增加,心室腔减小。治疗后14d组Ⅰ,组Ⅱ与组Ⅲ射血分数(EF)为26.6%±3.9%,20.6%±5.0%,25.6%±2.7%。短轴缩短率(FS)分别为13.3%±2.0%,10.1%±2.5%,12.1%±1.0%(P<0.05)。治疗后21 d组Ⅰ,组Ⅱ与组ⅢEF分别为19.7%±5.0%,21.4%±5.2%,26.6%±4.1%,FS分别为9.7%±2.5%,10.7%±2.6%,12.8%±2.2%(P<0.05)。组Ⅳ治疗后14 d EF无变化,治疗后21 d EF下降了6.6%±4.0%。组Ⅰ和组ⅢSERCA2 a基因,蛋白表达及酶活性均高于组Ⅱ和组Ⅳ(P<0.01)。结论MSC移植和SERCA2 a基因修饰的细胞移植组大鼠呈现稳定持续的心功能改善作用。MSC可以作为治疗基因的有效转移载体。     

血管紧张素Ⅱ调节大鼠心肌胶原的表达

目的观察血管紧张素Ⅱ(AngⅡ)对大鼠心肌Ⅰ、Ⅲ型胶原纤维蛋白基因表达的影响,评价DMP811(新型血管紧张素Ⅱ1型受体拮抗剂)对其干预作用.方法6周龄雄性SD大鼠随机分为3组,每组6只.(1)组生理盐水输注;(2)组AngⅡ输注;(3)组AngⅡ输注 DMP811管饲(3mg@kg-1@d-).1周后取其心脏,采用逆转录多聚酶链反应(RT-PCR)及胶原染色的方法分别检测心肌Ⅰ、Ⅲ型胶原基因的mRNA及蛋白表达水平.结果(2)组心重(CW)、心重/体重(C/B)、胶原Ⅰ、Ⅲ基因转录水平均高于(1)组,它们分别增加(4.7±0.4)%,(4.9±0.9)%,(22.0±4.7)%和(20.6±4.9)%(P＜0.01);而且心肌Ⅰ、Ⅲ型胶原蛋白沉积也较(1)组明显.AngⅡ导致的上述改变能被DMP811完全阻断.结论AngⅡ通过其1型受体的介导,上调心肌Ⅰ、Ⅲ型胶原基因的表达.     

卵巢癌细胞对T细胞信号转导途径JAK-STAT的影响

目的　通过研究卵巢癌细胞对T细胞信号转导途径JAK STAT的影响 ,探讨其在卵巢癌免疫抑制中的作用。方法　分别采用MTT、流式细胞术、逆转录 聚合酶链反应 (RT PCR)方法观察 3株卵巢癌细胞 (OVCAR3、CAOV3和SKOV3)培养上清液对CD8+ T细胞增殖和细胞周期及分泌细胞因子的影响 ;运用Western印迹方法检测在卵巢癌细胞培养上清液作用后CD8+ T细胞中JAK1、JAK3蛋白的表达和STAT3、STAT5的活化状态。结果　 (1 ) 3株卵巢癌细胞培养上清液皆能抑制CD8+ T细胞增殖 ,并使其阻滞在G1 /G0 期 ,分泌的细胞因子IFN γ显著降低 ,而白细胞介素 (IL) 1 0显著增高 ;(2 )与对照组比较 ,OVCAR3、CAOV3和SKOV3细胞培养上清液均能抑制CD8+ T细胞中JAK3的表达 ,JAK3蛋白平均吸光度 (A)值分别为 0 396± 0 0 1 2 ;0 40 0± 0 0 1 0 ;0 41 6± 0 0 1 5 ;0 656± 0 0 1 5 ;STAT5的活化也明显受抑 ,STAT5蛋白平均A值分别为 0 2 2 0± 0 0 1 0 ;0 2 1 6±0 0 0 5 ;0 2 2 3± 0 0 0 6 ;0 390± 0 0 0 1 ;对JAK1的表达无影响 ,只有OVCAR3细胞培养上清液使STAT3的活化受抑 (0 2 1 0± 0 0 1 0 ;0 393± 0 0 0 7)。结论　卵巢癌能抑制CD8+ T细胞信号转导途径JAK STAT的活化 ,从而抑制其增殖与活化 ,这可能是卵巢癌     

Dose-dependent effects of recombinant human interleukin-11 on the systemic hemodynamic function and urination

The purpose of this study was to determine whether recombinant human interleukin-11 (rhIL-11) could dose-dependently improve the hemodynamic function. Using a swine hemorrhagic shock model, rhIL-11 was given at the beginning of resuscitation. The animals were randomized to receive a single dose of rhIL-11 (5, 20, or 50 microg/kg, group I to III for respectively) or saline (group IV). Blood, urine and both pleural and peritoneal effusion were thus obtained and analyzed. The mean arterial pressure (MAP) was higher post-resuscitation (PR) in group III (62.9+/-8.2 mmHg) than in groups I, II and IV (54.9+/-1.7, 53.9+/-4.3, 55.9+/-9.4 mmHg, respectively) (P<0.01). The urine output (I: 999+/-428, II: 1249+/-180, III: 1434+/-325, IV: 958+/-390 ml) and the cardiac output (CO) (I: 3.01+/-0.66, II: 3.30+/-0.49, III: 3.43+/-0.57, IV: 2.73+/-0.49 L/min.) increased in a dose dependent manner of rhIL-11. CO level and urine output were significantly higher in group III than in group IV (P<0.05). In addition, the volume of third space fluid loss (pleural and peritoneal effusion) of group III was significantly lower than other groups (I: 157+/-32, II: 138+/-32, III: 82+/-21, IV: 125+/-32 ml) (P<0.05). In conclusion, even a low dose of rhIL-11 improved the hemodynamic functions dose-dependently in a porcine model of hemorrhagic shock, although the relationship did not demonstrate a simple linearity.     

成都地区正常男性中老年人血清apoB100含量与脂质及apoAⅠ,A…

This study was conducted in 438 normal men aged 40-70. The age groups were: 40-44, 45-49, 50-54, 55-59, 60-64, and 65-70. The results showed that the serum apolipoproteins levels (mean+/- s, mg/L) were: B100 levels 742.5 +/- 165.8, A I 1301.2 +/- 219.9, A II 299.4 +/- 49.0, C II 42.7 +/- 21.4, C III 113.3 +/- 34.0 and E 38.7 +/- 8.2. The levels of serum apoB100 increased with age. The serum apoB100 levels in the 5th and 6th age groups were significantly higher as compared with the groups 1, 2, 3 and 4 (P < 0.05 and P < 0.05). The fasting serum mean TG (1.39 +/- 0.45 mmol/L), TC(4.79 +/- 0.82 mmol/L) and LDC-C(1.62 +/- 0.40 mmol/L levels in the groups 5 and 6 were significantly higher as compared with the groups 1, 2, 3 and 4 (P < 0.01). Serum apoC II, C III and E levels were significantly increased in the groups 5, 6 (P < 0.05). The correlation analysis indicated that there was a positive correlation of apoB100 with serum TG, TC, LDL-C, apoC II, C III and E respectively (P < 0.01); and a negative correlation with HDL-C levels (r = 0.1312); and apoB100 correlated negatively with apoA I (r = -0.0706). The results suggest that serum TG, TC, LDL-C, apoC II, C III and E are the main factors related with the serum apoB100 levels.     

Cardiac performance in relation to age of onset of menopause

It is well known that post menopausal women are more prone to cardiovascular diseases, osteoporosis and cancer. This study was done to detect the effect of early onset of menopause on the cardiac performance in postmenopausal women. The cardiac functions were evaluated by the noninvasive technique of measuring systolic time intervals (STI) in the form of total electromechanical systolic time (OS2), left ventricular ejection time (LVET), pre-ejection period (PEP) and PEP/LVET ratio. The study included 50 postmenopausal women with age at the onset of menopause ranging from 29 years to 55 years, divided into three groups I, II and III with mean age at onset of menopause being 36.80 +/- 2.97, 43.97 +/- 2.97 and 52.05 +/- 1.61 years, respectively. In group I, there was a highly significant increase in QS2, PEP and PEP/LVET ratio and in group II, there is a significant decrease in LVET with a highly significant increase in PEP and PEP/LVET ratio. This signifies asymptomatic and subclinical cardiac systolic dysfunction in groups I and II as compared to group III. Early onset of menopause could thus be considered as a risk factor for increased cardiovascular morbidity; hence efforts should be made to timely detect and prevent these diseases in the postmenopausal stage.     

Preservation of laryngeal function in treatment of hypopharyngeal carcinoma

Objective To study the surgical technique and results of laryngeal function preservation in treatment of hypopharyngeal carcinoma.Methods A retrospective review of 305 patients with malignant neoplasms of the hypopharynx (279 males, 26 females, age ranging from 14 to 77 years) was performed from 1978 to 1996 In the 305 patients (stage Ⅰ, n=6; stage Ⅱ, n=12; stage Ⅲ, n=82; stage Ⅳ, n=205), the sites of origin were pyriform sinus (n=234), postcricoid (n=21), posterior pharyngeal wall (n=35) and superior hypopharynx (n=15). Of the 305 patients, 206 (67. 54%, stage Ⅰ, n=6; stage Ⅱ, n=12; stage Ⅲ, n=65;]stage Ⅳ, n=123) were surgically treated with laryngeal function preserved and 99 (32. 46%, stage Ⅲ, n=17; stage Ⅳ, n=82) had no laryngeal function preserved. All had 55-75 Gy radiotherapy according to their need. Results A total of 206 patients (67. 54%) were surgically treated with laryngeal function preserved, totally (voice, respiration and deglutition) in 139 (67. 5%) and partially (voice and deglutition) in 67 (32. 5%). 99 patients (32. 46%) had no laryngeal function preserved. The overall 5-year survival rate of the 305 patients was 44. 8%, which segregated to 83% (stage Ⅰ), 71% (stage Ⅱ), 58% (stage Ⅲ), and 36% (stage Ⅳ). ]The 5-year survival of the laryngeal function preserved group was 48% (n=66), the rate of complications 28% (n=58) and the rate of residual tumor 5. 8% (n=12), compared with the no laryngeal function preserved group 37% (n=20), 31. 3% (n=31), and 6% (n=6) (P&gt;0. 05). Conclution Only a small proportion of patients (31/305, 10%) with hypopharyngeal carcinoma who require total laryngectomy and preservation of the laryngeal function is feasible for eradication of tumor and preservation of laryngeal function.     

Comparison of haematological values among different groups of low birth weight babies and normal birth weight babies

This prospective cross sectional study was carried out in Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka. This study was undertaken to compare the haematological value (reference range) among Small for gestational age-low birth weight (SGA-LBW), Appropriate for gestational age-low birth weight (AGA-LBW) and Normal birth weight (NBW) babies. Total 90 (ninety) newborn babies were enrolled in this study. They were ultimately divided into three groups as a) Group I (SGA-LBW), b) Group II (AGA-LBW), c) Group III (NBW). Study period was one year (December 2003 to December 2004), Relevant informations were collected from the guardian of the babies before inclusion in the study. In group I, 19(63.3%) were preterm and 11(36.7%) were term. In group II, 30(100%) were preterm and in group III, 30(100%) were term. Mean Hb, and HCT levels were highest in group I (SGA-LBW) and the value was 17.14+/-1.41gm/dl (Hb) and 0.51+/-0.04 (HCT) respectively. Mean Hb and HCT value were lowest in group II (AGA-LBW) and the value was 14.57+/-1.78 gm/dl (Hb) and 0.43+/-0.05 (HCT) respectively. In between value was found in group III (NBW) and the value was 16.14+/-1.09 gm/dl (Hb) and 0.48+/-0.04 (HCT) respectively. Differences were statistically significant. On the contrary, MCV Values were highest in group II (AGA-LBW) and the value was 103.23+/-4.99 (fl). Lowest MCV value was in group III (NBW) and the value was 98.13+/-3.93 (fl). In between result of MCV value was found in group I (SGA-LBW) and the value was 99.27+/-10.73 (fl). Differences were also statistically significant. MCH and MCHC level was also highest in group I (SGA-LBW). Difference was also statistically significant. No significant differences of TC of WBC and platelet counts were not found among different groups. Hb and HCT level had significant positive correlation with gestational age. Other parameters had no Positive correlation with gestational age.     

卵巢恶性畸胎瘤临床与预后

目的分析卵巢恶性畸胎瘤的临床、病理特点及预后相关因素.方法以本院1954年1月～2001年12月收治的84例卵巢恶性畸胎瘤患者为研究对象,所有患者均行手术治疗,中位随访146个月.以患者术后5、10及15年生存率为评价预后的指标,分析患者年龄、婚育状况、临床表现、临床分期、病理类型、组织学分级、肿块大小、手术方式及术后是否辅助化疗等因素与预后的关系.结果卵巢恶性畸胎瘤患者的平均年龄为(33.5±16.1)岁,主要临床症状为腹痛、腹胀,占86.9%.卵巢畸胎瘤恶变37例,卵巢未成熟畸胎瘤47例.单因素分析和多因素分析均显示临床分期为影响卵巢恶性畸胎瘤预后的主要因素,Ⅰ、Ⅱ、Ⅲ、Ⅳ期患者的5年生存率分别为(87.20±4.52)%、(50.00±35.36)%、(30.55±9.43)%和0.00%(P=0.00).组织学分级1、2与3级患者的5年生存率逐渐下降,分别为(90.48±6.41)%、(68.75±11.59)%和(57.14±16.38)%,但差异无统计学意义(P=0.08).在31例死亡患者中27例(87.1%)于术后2～17个月内死亡.结论卵巢未成熟畸胎瘤在临床特点和生物学特性等方面不同于卵巢畸胎瘤恶变.对卵巢畸胎瘤恶变总的治疗原则是施行全面分期手术和肿瘤细胞减灭术,术后辅助PVB方案为主的足量化疗;对年轻的卵巢未成熟畸胎瘤患者应尽量保留生育功能以期提高患者生活质量,术后2年内应密切随访.     

肺癌患者血清内皮抑素水平对肺癌早期诊断价值的研究

目的探讨肺癌患者不同临床分期、组织学类型血清内皮抑素的水平以及化疗前后其水平的变化,从而判断血清内皮抑素水平对肺癌的早期诊断和预后的价值。方法对40例肺癌患者、20例良性肺病患者和20例正常人用ELISA方法检测血清内皮抑素。对不同临床分期、病理类型及化疗前后血清内皮抑素的水平进行分析。结果(1)肺癌组血清内皮抑素水平(10．71±9．99)ng／ml高于良性肺病组(4．79±1．23)ng／ml和正常对照组(4．51±1．14)ng／ml,差异有统计学意义(P<0．01);(2)Ⅰ、Ⅱ期肺癌患者血清内皮抑素的水平高于Ⅲ期,差异有统计学意义(P<0．05)。(3)肺癌患者不同病理类型血清内皮抑素水平的比较差异无统计学意义。(4)肺癌患者化疗后血清内皮抑素水平明显高于化疗前,差异有统计学意义(P<0．05)。结论(1)血清内皮抑素可能成为肺癌早期诊断的参考指标;(2)血清内皮抑素水平的动态变化可作为化疗疗效观察和预后的评价指标。     

睾丸扭转复位后生精上皮细胞核转录因子表达的改变及其凋亡

目的探讨睾丸扭转2h复位后第3天睾丸生精上皮细胞核转录因子(NF-κB)表达的改变及其凋亡的关系。方法用24只雄性SD大鼠建立左侧睾丸扭转复位模型。分为Ⅰ、Ⅱ和Ⅲ组,每组8只。Ⅰ组动物睾丸扭转复位后用柳氮磺胺吡啶灌胃;Ⅱ组动物睾丸扭转复位后用等量的生理盐水灌胃;Ⅲ组动物假手术后用等量的生理盐水灌胃。分别用Western蛋白印迹和免疫组织化学原位检测睾丸生精上皮细胞中NF-κB的表达情况;TUNEL法检测生精上皮细胞凋亡情况。结果Ⅱ组动物睾丸扭转复位后第3天扭转侧睾丸生精上皮细胞胞质NF-κB蛋白质(9·4±2·68)表达与Ⅰ、Ⅲ组扭转侧睾丸生精上皮细胞胞质NF-κB表达(分别为:12±2·2;11·1±3)相比下降水平差异无统计学意义,胞核NF-κB表达升高水平差异有统计学意义(3组分别为8·4±3·1;21·1±3·6;6·0±2·3)。免疫组织化学原位检测Ⅰ和Ⅲ组扭转侧睾丸生精上皮细胞中NF-κB的表达以胞质为主,Ⅱ组扭转侧睾丸生精上皮细胞中NF-κB的表达以细胞核为主,而且NF-κB阳性细胞比例较其他两组阳性率显著上升(三组分别为15·6%±2·6%,66·1%±3·8%,10·8%±2·7%)。Ⅰ组(7·7%±2·0%)和Ⅲ组(5·9%±1·7%)扭转侧睾丸生精上皮细胞凋亡指数差异不明显;Ⅱ组扭转侧睾丸生精上皮细胞凋亡水平(37·2%±3·3%)跟以上两组相比升高有显著性差异。结论睾丸扭转2h复位后第3d,睾丸生精上皮细胞NF-κB蛋白已被激活,从胞质转移至核内,启动生精上皮细胞凋亡过程。NF-κB蛋白质的激活是导致睾丸扭转复位后生精上皮细胞特别是精原细胞和各级精母细胞凋亡增加的重要环节。     

Association between anthropometric hormonal measurements and bone mineral density in puberty and constitutional delay of growth and puberty

The aim of this study is to evaluate the acquisition of bone mineral in healthy children throughout puberty and in children with constitutional delay of growth and puberty (CDGP), and to relate changes in bone mass to age, weight, height, sitting height, body mass index and sex hormones in healthy boys. A total of 90 boys: 15 boys with CDGP and 75 healthy boys in different pubertal stages were examined. The number of children assigned to each Tanner stages was 15. Although bone age, weight and Body Mass Index (BMI) were significantly higher in stages II, III, IV V compared to stage I and CDGI mean height and sitting height values were higher in stages III, IV V compared to stage I and CDGP Also, serum FSH, LH, oestradiol, total and free testosterone levels progressively increased, although serum sex hormone binding globulin (SHBG) levels decreased, in healthy children with progression of sexual development. Significant increase was observed for serum oestradiol levels at stage II and above (p < 0.001), for serum total and free testosterone levels at stage III and above (p < 0.001), for serum FSH and LH levels at stage IV and above (p < 0.01 and p < 0.001) respectively. Also, it was shown that bone mineral content (BMC) and bone mineral density (BMD) measurements were significantly higher for pubertal stage III and above groups according to both the CDGP group and stage I group. When BMD and BMC measurements of children with CDGP (0.62 +/- 0.05 gr/cm2 and 23.4 +/- 2.8 gr) were compared with bone age, age, BMI and height-matched controls, there was no significant difference between children with CDGP and controls, except for age. Bone mineral density and BMC measurements in children with CDGP were significantly lower than those of age-matched controls (for pubertal stage III: p < 0.05, for pubertal stage IV: p < 0.01). The strongest correlation coefficients were found between BMD and height among auxological parameters (r = 0.63, p < 0.001) and serum oestradiol levels among hormones (r = 0.55, p < 0.001). The most important findings of this investigation was the determination of body composition and hormonal measurement changes during puberty in boys; oestradiol was the most potent determinant of BMD among pubertal boys. We suggested that there is a critical age period for accumulation of bone mass according to the results. Longitudinal studies will elucidate why sufficient mineralization does take place after puberty starts in CDGP     

Clinical significance of serum cardiac troponin T in patients with congestive heart failure

Objective To determine whether the level of serum cardiac troponin T (cTnT) was increased in patients with congestive heart failure (CHF). Methods This study consisted of 265 patients with CHF and 75 healthy people. Serum cTnT was measured by electrochemiluminescence immunoassay using an Elecsys 1010 automatic analyzer. Results cTnT concentration was 0. 181±0. 536 ng/mL in CHF patients and 0. 003±0. 001 ng/mL in controls (P&lt;0. 001). Patients were categorized according to the levels of heart function and left ventricular ejection fraction (LVEF). In the first group consisting of 105 patients with LVEF≤35%, cTnT was 0. 311±0. 221 ng/mL. In the second group of 106 patients with LVEF&gt;35%, cTnT was 0. 07±0. 0 5ng/mL (P&lt;0. 01). In patients with NYHA class Ⅰ, Ⅱ, Ⅲ and Ⅳ, cTnT values were 0. 062±0. 022 ng/mL, 0. 113±0. 121 mg/mL, 0. 191±0. 231 mg/ml and 0. 384±0. 211 mg/mL, respectively (class Ⅰ vs class Ⅱ P&gt;0.05, class Ⅱ vs clas s Ⅲ P&lt;0. 01, class Ⅲ vs class Ⅳ P&lt;0. 01). A negative correlation was observed between serum cTnT concentration and LVEF in 265 patients with CHF ( r=-0. 493, P&lt;0. 001). Conclusions This study shows that the level of serum cTnT is increased in patients with CHF and that the increased level indicates the severity of CHF.     

Correlation of syndrome types in traditional Chinese medicine and insulin release curves in pre-aged and aged diabetics--an analysis of 142 cases

This paper deals with the correlation between insulin release curves and syndrome types of TCM in 142 cases of diabetes. The syndromes were divided into 3 types: I, Qi-Yin deficiency, 94 cases; II, Yin deficiency with interior heat overabundance, 36 cases; and III, deficiency of both Yin and Yang, 12 cases. The results showed that fasting for 60 min, the postprandial (M +/- SD) of serum insulin were 18.27 +/- 1.10 mu/L and 45.21 +/- 2.82 mu/L in type I 25.47 +/- 1.88 mu/L and 60.53 +/- 0.25 mu/L in Type II; 8.29 +/- 0.93 mu/L and 19.20 +/- 1.67 mu/L in type III respectively. It was obvious that serum insulin level was Type II greater than Type I greater than Type III. But there was no difference between the aged and the pre-aged with diabetes (P greater than 0.05); even though the former was lower than the latter. According to the analysis of insulin release curve types (insulin secretion level and peak time), there were 39 cases (41.5%) of the low secretion type, 7 cases (7.5%) of the high secretion type among the 94 cases of Type I. Of the 36 cases of Type II, there were 7 cases (19.4%) of high secretion, more than that of Type I, and the highest value reached 155-106 mu/L. The 12 cases of Type III are all of the lower secretion type, with the fasting mean value being 47.5 mu/L and 10.93 mu/L and the postprandial highest value 21.69 mu/L and 20.73 mu/L, much lower than those of Types I and II. The results also showed that correlation between insulin secretion level and blood glucose value was significantly negative. The paper also discussed the mechanism of insulin secretion condition of 3 syndrome types according to the theory of TCM.     

早期宫颈鳞癌患者微淋巴管的分布及其临床意义

目的探讨早期宫颈鳞癌微淋巴管形成的临床意义。方法对35例Ⅰb、Ⅱa期的宫颈鳞癌患者的癌组织存档蜡块切片,用Podoplanin单抗免疫染色微淋巴管,图像分析系统定量分析癌内、癌周的淋巴管,并结合临床病理资料分析。结果(1)形态学观察示癌周淋巴管较癌内淋巴管粗大、密集。有淋巴结转移者,癌内淋巴管可见癌细胞。(2)宫颈鳞癌癌周淋巴管密度(LVD)为(31±10)条/mm2,癌内淋巴管密度为(20±10)条/mm2(P<0.01);癌周相对淋巴管面积(LVA)为(0.75±0.40)%,癌内LVA为(0.19±0.11)%(P<0.01)。(3)有盆腔淋巴结转移者的癌内及癌周的LVD、LVA分别为(29±7)条/mm2,(40±5)条/mm2,(0.27±0.10)%,(1.23±0.36)%,无淋巴结转移者为(16±8)条/mm2,(28±9)条/mm2,(0.16±0.09)%,(0.56±0.20)%,(P<0.01,0.01,<0.05及P<0.01)。(4)组织学分级Ⅰ、Ⅱ、Ⅲ级者的癌周LVA及癌内LVD、LVA分别为(0.42±0.10)%,(9±3)条/mm2,(0.06±0.04)%;(0.77±0.37)%,(21±8)条/mm2,(0.21±0.09)%;(0.83±0.46)%,(22±11)条/mm2,(0.21±0.12)%。Ⅱ、Ⅲ级与Ⅰ级比较的P均<0.05,而Ⅱ、Ⅲ者间比较的P>0.05。结论早期宫颈鳞癌高淋巴管分布与淋巴结转移有关。     

Association of prolidase activity, oxidative parameters, and presence of atrial fibrillation in patients with mitral stenosis

BACKGROUND: Mitral stenosis (MS) is a common cause of atrial fibrillation (AF). Oxidative stress and inflammation factors were shown to be involved in atrial remodeling. The study aim was to compare the oxidative parameters and prolidase activity in severe MS patients with and without AF. METHODS: The study population was comprised of 33 patients with MS and sinus rhythm (group I), 27 patients with MS and AF (group II), and 25 healthy controls (group III). Plasma prolidase activity, total antioxidant capacity (TAC), total oxidative status (TOS), and oxidative stress index (OSI) were determined. Additionally, we measured tissue TOS and TAC in patients with mitral valve replacement. RESULTS: TAC and OSI were higher, but TOS and prolidase were lower in patients with MS than control (all p <0.001). These parameters were similar in group I and group II (ANOVA p >0.05). Tissue TAC was significantly lower in group II than group I (0.015 +/- 0.01 vs. 0.026 +/- 0.01 mmol Trolox equiv/L, p = 0.014), tissue TOS was similar between groups I and II (0.24 +/- 0.06 vs. 0.22 +/- 0.05 mmol Trolox equiv/L, p = 0.161). Presence of AF was correlated with systolic blood pressure, left atrial diameter, plasma TAC, tissue TAC, plasma TOS, plasma OSI, and plasma prolidase activity. Tissue TAC level (beta = -0.435, p = 0.006) and left atrial diameter (beta = 0.460, p = 0.003) were independently related with presence of AF in patients with MS. CONCLUSIONS: This study suggested that the presence of AF in patients with severe MS may be associated with the plasma prolidase activity, tissue and plasma oxidative parameters.