血清瘦素、总胆汁酸联合检测对妊娠肝内胆汁淤积症患者的诊断价值

目的 探讨妊娠肝内胆汁淤积症(ICP)患者血清瘦素(leptin)、总胆汁酸(total bile acids,TBA)水平对ICP患者母体并发症及围生儿的关系.方法 检测91例ICP产妇(其中轻度42例、中度38例、重度91例)和34例健康晚期妊娠妇女(对照组)leptin和TBA水平,TBA测定采用TBA试剂盒,第5代循环酶法,leptin测定采用酶联免疫测定法.结果 ICP产妇leptin和TBA水平明显高于对照组,差异有统计学意义(P＜0.01),ICP患者母体并发症及围生儿患病率也明显高于对照组,差异有统计学意义(P＜0.05),重度组患者与中度、轻度组比较差异有统计学意义(P＜0.05).结论 leptin和TBA联合检测对妊娠ICP患者早期诊断和治疗、母体并发症及围生儿病情观察及预后有重要意义.     

联合检测明胶酶B与甲胎蛋白及总胆汁酸在原发性肝癌诊断中的应用

目的探讨联合检测明胶酶B(MMP-9)、甲胎蛋白(AFP)和总胆汁酸(TBA)在原发性肝癌诊断中的临床意义。方法 40例原发性肝癌患者均为医院2007年1月-2010年6月住院患者,同期选择30例健康体检者作为对照组,分别采用循环酶法检测TBA、采用放射免疫法检测AFP,采用双抗夹心ABC-ELISA法检测MMP-9,并通过统计学方法进行比较分析。结果原发性肝癌组MMP-9、AFP、TBA明显高于健康对照组,差异有统计学意义(P<0.01);三项肿瘤标记物联合测定的阳性率为90.0%,明显高于单项分别测定MMP-9、AFP和TBA阳性率,其阳性率分别为30.0%、80.0%和50.0%,差异有统计学意义(P<0.05),且单项测定AFP的阳性率又明显高于MMP-9、TBA的阳性率,差异有统计学意义(P<0.05)。结论血清AFP联合MMP-9和TBA检测可明显提高原发性肝癌的阳性检出率,对原发性肝癌的早期诊断具有重要的临床意义。     

TBA治疗月经过多的长期疗效及其对生活质量的影响

目的采用热球凝切(thermal balloon ablation,TBA)子宫内膜对月经过多的病人进行研究,观察长期疗效及生活质量的改变。方法采用TB型子宫内膜治疗仪对70例月经过多病人进行TBA治疗,术后连续随访24个月,以电话或面见的方式,随访临床症状及生活质量状况,并作相应的统计学处理。结果术后6、 12、18、24个月治疗有效率分别为95．71％、94．28％、87．14％、84．29％。,再次手术有5例,占7．14％。术前与术后 24个月时相比,月经期从(8．8±2．2)d／周期缩减至(4．1±1．3)d／周期,P<0．0001;月经量从(11．4±2．6)片／d减至 (4．8±1．5)片／d,P<0．001。血红蛋白从(82．75±12．40)g／L,上升为(110．30±1．00)g/L,P<0．0001;生活质量 (SRHMS)量表健康评定总分从(166．50±10．11)分上升到(357．33±32．16)分,P<0．0001。结论 TBA治疗月经过多,可改善患者临床症状,同时提升生活质量。     

片仔癀胶囊联合替诺福韦治疗慢性乙型病毒性肝炎的临床研究

目的 探讨片仔癀胶囊联合富马酸替诺福韦二吡呋酯片治疗慢性乙型病毒性肝炎的临床疗效.方法 选择2017年4月—2020年4月在安阳市第五人民医院治疗102例慢性乙型病毒性肝炎患者,根据住院序号分成对照组(51例)和治疗组(51例).对照组患者口服富马酸替诺福韦二吡呋酯片,300 mg/次,1次/d;治疗组患者在对照组基础...     

简便快速检测脂质过氧化物

本文设计研究了一种新的脂质过氧化物定量检测的方法。利用无色孔雀绿在血红蛋白存在下迅速被脂质过氧化物氧化呈现蓝绿色,且可在波长630nm进行比色定量。研究发现OD_(630)与OD_(233)之间具有较大的相关性,从而使比色方法有可能代替紫外检测方法。该法线性范围较宽,可达12～800nmol/管。     

锰与维生素E对克山病区粮饲养的大鼠体内GSH-Px及TBA值的影响

本文叙述了在克山病病区粮中混合1000ppm锰后大鼠血中GSH-Px受到抑制,但对血及组织中TBA值无明显影响。当饲料中补充200ppmVE后,血中GSH-Px活性明显上升,TBA位下降。实验表明,VE似乎可对抗外源性锰抑制血中GSH-Px水平的作用。     

Subject index

After 2 and 7 days of n-octane and n-nonane administration (intraperitoneally) to female albino rats, alterations in the levels of hepatic xenobiotic metabolising enzyme activities and TBA reactants were observed. Fifty to eighty per cent reduction in the specific activities of benzo[a]pyrene hydroxylase, benzphetamine-N-demethylase, p-nitroanisole-O-demethylase and glutathione-S-transferase were observed. Cytochrome P-450 and free sulfhydryl contents of liver were also decreased significantly after 7 days treatment of n-octane and n-nonane. A 2- and 3- fold increase in liver lipid peroxidation estimated as TBA reactants was observed in the animals treated for 2 or 7 days with n-octane or n-nonane.     

Toxicity and oxidative stress induced by T-2 toxin and HT-2 toxin in broilers and broiler hepatocytes

T-2 and HT-2 toxins belong to mycotoxins which are found in human foods and animal chow. We investigated the toxicity and oxidative stress induced by T-2/HT-2 in broilers and chicken hepatocytes. Maize cultures of Fusarium poae was fed to broilers for 42 d, and the physiological index, biochemical index and expression of mRNAs related to oxidative stress were analyzed. Chicken hepatocytes were treated with different levels of T-2/HT-2, and the following parameters were detected: cell viability, GSH and MDA concentration, LDH leakage, activities of ALT/AST, ROS, GSH-PX, SOD and CAT, and expression of mRNA related to oxidative stress. In vivo, high levels of mycotoxins (4 mg/kg T-2 and 0.667 mg/kg HT-2) in feed caused significant reductions in body weight, weight gain, and serum total protein, and significant increases in feed conversion ratio, ALP, ALT/AST activities, and expression of mRNA related to oxidative stress. In vitro, cells treated with T-2/HT-2 showed reductions of GSH concentration and significant increases in LDH leakage, ALT/AST ROS, GSH-PX, SOD and CAT activities, MDA concentration, and expression of mRNA related to oxidative stress. Consequently, F. poae culture material and T-2/HT-2 induced toxicity and oxidative stress in vivo and in vitro, respectively.     

Subfascial Transaxillary Breast Augmentation Without Endoscopic Assistance: Technical Aspects and Outcome

Background Although transaxillary breast augmentation (TBA) is a well-studied procedure, few previous reports exist concerning the subfascial technique, especially without endoscopic assistance. This study aimed to analyze the feasibility of the technique after breast augmentation in terms of its indication, surgical technique, limitations, and clinical outcome. Methods For this study, 42 patients underwent TBA without endoscopic assistance. The technique was indicated for patients with breasts of small or moderate volume without ptosis, patients who wanted no breast scars, and patients who had a poorly defined inframammary fold. The mean follow-up period was 16 months. Implant and incision approach complications were evaluated. Information on patient satisfaction was collected. Results A total of 14 complications occurred in 42 patients, all of them minor. Axillary incision–related complications occurred in 26% of the patients, as represented by a late axillary subcutaneous band (119%), sensory loss in the inner aspect of the arm (71%), and a hypertrophic scar and small wound dehiscence (71%). No patient presented with capsular contracture, visible rippling, or infection. Most of the patients (93%) were either very satisfied or satisfied with their result, and none regretted the surgery. Conclusion The TBA procedure without endoscopic assistance is a simple and reliable technique for breast augmentation. Most of the complications in this study were minor and predictable. They did not interfere with the aesthetic outcome nor the normal postoperative recovery. With TBA, success depends on patient selection as well as careful intra- and postoperative management.     

The protection of bioenergetic functions in mitochondria by new synthetic chromanols

alpha-Tocopherol is the most important lipophilic antioxidant of the chromanol type protecting biomembranes from lipid peroxidation (LPO). Therefore, alpha-tocopherol and its derivatives are frequently used in the therapy or prevention of oxygen radical-derived diseases. In the present study, novel chromanol-type antioxidants (twin-chromanol, cis- and trans-oxachromanol) as well as the well-known short-chain analogue of alpha-tocopherol, pentamethyl-chromanol, were tested for their antioxidative potency in rat heart mitochondria (RHM). Our experiments revealed that the bioenergetic parameters of mitochondria were not deteriorated in the presence of chromanols (up to 50 nmol/mg protein). Exposure of RHM to cumene hydroperoxide and Fe2+ (final concentrations 50 microM each), inducing LPO, significantly affected their bioenergetic parameters which were determined in the presence of glutamate and malate (substrates of mitochondrial complex I). Alterations of the bioenergetic parameters were partially prevented in a concentration-dependent manner by preincubating RHM with antioxidants before adding the radical-generating system. In the lower concentration range, twin-chromanol turned out to be more efficient than pentamethyl-chromanol, both being far more protective than cis- and trans-oxachromanol. Measurement of protein-bound SH groups and thiobarbituric acid-reactive substances revealed that this protective effect was due to their antioxidative action. Furthermore, HPLC measurements of alpha-tocopherol and alpha-tocopheryl quinone in rat liver mitochondria demonstrated an alpha-tocopherol-sparing effect of twin-chromanol. In conclusion, new chromanol-type antioxidants, especially twin-chromanol, were able to improve bioenergetic and biochemical parameters of mitochondria exposed to oxidative stress.