Flow injection spectrophotometric determination of vitamin E in pharmaceuticals,milk powder and blood serum using potassium ferricyanide-Fe(Ⅲ) detection system

A simple and sensitive flow injection spectrophotometric method is reported for the determination of vitamin E using potassium ferricyanide-Fe(Ⅲ) detection system.In the presence of vitamin E,Fe(Ⅲ)/ferricyanide reduces.The in situ reduced ions are then reacted with unreduced portion of ferricyanide/Fe(Ⅲ) to make soluble Prussian blue,which is monitored at absorption wavelength of 735 nm.Linear calibration graph was obtained in the concentration range of 0.1-40μg mL^(-1).The relative standard deviations (n=4) were in the range of 1.1-3.6%,with limits of detection(3 s blank) of 0.04μg mL^(-1).The proposed method allowed 12 injections h^(-1).The method is applied to determine vitamin E in pharmaceuticals,infant milk and blood serum samples using hexane extraction with the recoveries in the range of 93±3 to 97.5±4%.The method is validated using certified reference materials SRM 968c for blood serum samples.

The efficacy of vitamin E in preventing arthrofibrosis after joint replacement

Background:Arthrofibrosis is a joint disorder characterized by excessive scar formation in the joint tissues.Vitamin E is an antioxidant with potential anti-fibroblastic effect.The aim of this study was to establish an arthrofibrosis rat model after joint replacement and assess the effects of vitamin E supplementation on joint fibrosis.Methods:We simulated knee replacement in 16 male Sprague–Dawley rats.We immobilized the surgical leg with a suture in full flexion.The control groups were killed at 2 and 12 weeks(n=5 per group),and the test group was supplemented daily with vitamin E(0.2 mg/mL)in their drinking water for 12 weeks(n=6).We performed histological staining to investigate the presence and severity of arthrofibrosis.Immunofluorescent staining andα2-macroglobulin(α2M)enzyme-linked immunosorbent assay(ELISA)were used to assess local and systemic inflammation.Static weight bearing(total internal reflection)and range of motion(ROM)were collected for functional assessment.Results:The ROM and weight-bearing symmetry decreased after the procedure and recovered slowly with still significant deficit at the end of the study for both groups.Histological analysis confirmed fibrosis in both lateral and posterior periarticular tissue.Vitamin E supplementation showed a moderate anti-inflammatory effect on the local and systemic levels.The vitamin E group exhibited significant improvement in ROM and weight-bearing symmetry at day 84 compared to the control group.Conclusions:This model is viable for simulating arthrofibrosis after joint replacement.Vitamin E may benefit postsurgical arthrofibrosis,and further studies are needed for dosing requirements.

The Effects of Frying Oils Supplemented with Vitamin E on Blood Parameters and Growth Performance of Rats

This study aimed at investigating effects of frying oils supplemented with vitamin E on blood parameters and growth performance of rats. Three experimental diets containing fresh corn oil or frying oil (FO) with or without vitamin E were fed to Wistar rats over a 90-day. Blood Chemistry, blood parameters (hematocrit and erythrocyte osmotic fragility) and growth performance were determined. Neither FO alone nor vitamin E had any considerable impact on the growth performance. Hematocrit of FO group did not change significantly compared to animals fed fresh oil. Although, vitamin E increased hematocrit to 16.37%, but still it had no considerable effect on restoring hematocrit to normal values. Serum triacylglycerol (TAG) did not change significantly among FO animals, while significant increase in TAG was noted between FO and vitamin E treated animals compared with other treatments. Serum total cholesterol (TC) did not change significantly among experimental animals compared with the control. Vitamin E resulted in an insignificant increase in high-density lipoprotein (HDL-C) level compared to the control. Serum low-density lipoprotein (LDL-C) level did not display any considerable difference among the three treatments. Frying oil with or without vitamin E had no significant effects on growth performance, lipid chemistry, and blood parameters. The only significant effect of FO was shown on erythrocytes hemolysis at higher concentration. Vitamin E supplementation had no impacts on undesired effects caused by frying oil.

Influence of folic acid and vitamin B12 combined therapy on plasma Hcy, inflammatory factor levels and blood vessels endothelial function in patients with vascular dementia and type H hypertension

Objective:To investigate influence of folic acid and vitamin B12 combined therapy on plasma homocysteine (Hcy) level, blood vessels endothelial function and inflammatory factors in patients with vascular dementia and type H hypertension.Methods:100 cases of patients with vascular dementia and type H hypertension accorded with the inclusion criteria were selected as research objects. They were randomly divided as the control group and the therapeutic group, 50 cases each. For control group, Enalapril tablets were administered by mouth for treatment. For therapeutic group, folic acid and vitamin B12 treatment were provided on the basis of treatment for control group. Treatments were continued for 12 weeks. Plasma Hcy levels, inflammatory factors [(interleukin-6 (IL-6), interleukin-8 (IL-8) and hypersensitive C reaction protein (hs-CRP)], blood vessels endothelial function indexes variation in patients before and after treatment were observed and detected.Results:Plasma Hcy, IL-6, IL-8 and hs-CRP levels in two groups of patients after treatment were significantly decreased comparing with the same group before treatment, and the above index levels in therapeutic group after treatment were significantly lower than control group (P<0.05);For comparison of blood vessels endothelial function indexes in the patients, NO levels in two groups after treatment were increased in various degrees, and endothelin-1 (ET-1) were decreased. The differences between levels of the two indexes in therapeutic group before and after treatment were significant, and levels after treatment in therapeutic group were significantly better than in control group (P<0.05). While variations of the differences in control group before and after treatment were not significant (P>0.05);After treatment, diastolic pressure and systolic pressure in the two groups of patients were significantly improved comparing with before treatment (P<0.05). However, after treatment, the differences of levels between therapeutic group and control group were not significant (P>0.05). MMSE score in therapeutic group after treatment was significantly higher than before treatment, and significantly higher than in control group (P<0.05).Conclusions: Combined therapy of folic acid and vitamin B12 for treating vascular dementia with type H hypertension could effectively decrease plasma Hcy and inflammatory factor levels, and improve blood vessels endothelial function and dementia degree on patients. It has certain clinical value which deserves to be promoted.

Effects of Vitamin K-1 and Menaquinone-7 on Vascular Function and Blood Pressure in Warfarin-Induced Calcification-Model in Rats

Given that vascular calcification is inversely correlated with the clinical intake of menaquinone, a rat model of warfarin-induced calcification may be useful for testing menaquinone and vitamin K-1 potential effects on vascular function. The aim of the present study was to investigate effects of vitamin K-1 and menaquinone-7 treatments on blood pressure and vascular function in warfarin-induced vascular calcification model during five-week intervention in normotensive Wistar-Kyoto rats. Blood pressure was measured weekly, and at the end of the intervention in vitro vascular reactivity measurements were done. Alizarin Red S and von Kossa stainings were used to record possible calcification of aortic sections. Routine clinical chemistry was done from serum and urine samples. Vascular calcification was seen only in a few warfarin-treated animals in histological staining. Warfarin-treatment did not change significantly blood pressure of the rats. Warfarin-treatment increased slightly the endothelium-dependent relaxation of aorta after the L-type calcium channels were blocked. Also the vascular relaxation improved after NOS inhibition in the aorta of the healthy controls and menaquinone-7 treated animals, indicating that the relaxation in those groups was not totally dependent on NO. Clinical chemistry from serum showed some differences in urea, creatinine as well as lipid and glucose metabolism between the healthy controls and warfarin-treated rats.

Effect of Phosphorus on the Content of Vitamin E in Different Soybean Cultivars

[Objective] This study aimed to explore the effects of phosphorus on the contents of vitamin E in different cultivars of soybean grains and find the optimum application amount of phosphorus for different genotypes of soybean cultivars,in order to increase the contents of vitamin E in soybean grains and improve the qualities.[Method] Three soybean cultivars were selected as experimental materials,including Heinong 48（high-protein cultivar）,Heinong 37（intermediate cultivar） and Heinong 44（high-oil cultivar）.The soybeans were planted in pots,with 0.033 g/kg soil of N and K2O,four phosphorus treatments were set,respectively applied with 0（P1）,0.033（P2）,0.067（P3） and 0.100（P4） g/kg soil of P2O5,and the total contents of vitamin E in different cultivars of soybean grains were determined by high-performance liquid chromatography method.[Result] The total contents of vitamin E in the same cultivar of soybean grains in P3 treatment were significantly higher than that in the other three treatments,the total contents of vitamin E in Heinong 37,Heinong 44 and Heinong 48 in P3 treatment had increased by 11.96%,16.55% and 14.02%,compared with the control;among the three soybean cultivars in P2 treatment,the content of vitamin E in Heinong 37 was the maximum;among the 12 treatment combinations,the total contents of vitamin E in Heinong 44 in P3 treatment was the maximum.The contents of vitamin E in three soybean cultivars significantly varied among the various cultivars and different phosphorus treatments.[Conclusion] Application of phosphorus could affect the contents of vitamin E in three soybean cultivars,appropriate application amount of phosphorus is advantageous to improve the contents of vitamin E in soybean grains.

VitaminE对大运动量训练的大鼠内皮细胞内分泌功能的影响

为了探讨在不同运动量的运动训练中 ,机体内皮细胞内分泌功能的变化及其与机体氧自由基代谢之间的关系 ,以及VitE对大运动量训练后内皮细胞内分泌功能的影响 ,对SD大鼠进行了为期 8周的游泳训练 ,测定其血浆内皮素 (ET)、血清一氧化氮 (NO)含量、血清超氧化物歧化酶 (SOD)活力和丙二醛 (MDA)含量。结果 :①适量的运动训练可使大鼠血浆ET含量下降 ,使血清NO含量升高 ,且ET/NO值下降。说明中、小强度的运动训练可增强内皮细胞NO的分泌 ,而抑制ET的分泌。因此 ,适量的运动训练对降低正常人或轻度高血压患者的血压有良好的影响。②长时间大运动量运动训练后 ,大鼠血浆ET含量上升 ,血清NO含量下降 ,且ET/NO值升高。说明过量的运动训练可增强内皮细胞ET的分泌 ,而抑制NO的分泌。③机体内血浆ET含量与血清SOD/MDA呈显著负相关 ,血清NO含量与SOD/MDA值呈显著正相关 ,且ET/NO与血清SOD/MDA值呈显著负相关。说明机体抗氧化能力增强时 ,可抑制ET的分泌和促进NO的分泌。因此 ,长期大运动量的运动训练使机体SOD活力下降 ,MDA含量升高 ,可能是导致机体ET分泌增多 ,NO分泌减少的生理机制。④VitE可通过抑制氧自由基的生成 ,使大鼠大运动量训练后血浆ET下降 ,血清NO含量升高。从而表明VitE对大运动量训练后的大鼠内皮细?

Vitamin E对大运动量训练后大鼠心血管系统调节肽分泌的影响

为了研究Vitamin E对大运动量训练后机体心血管系统神经调节肽分泌的影响,本文通过对大鼠进行为期8周的不同负荷的游泳训练,并给大运动量训练后的大鼠补充Vitamin E,测定血浆神经肽Y（NPY）和降钙素基因相关肽（CGHP）的含量。结果发现:①经过8周的游泳训练后,2h训练组血浆NPY含量显著高于对照组和1h训练组,血浆CGRP含量显著低于对照组,NPY/CGRP显著高于对照组和1h训练组。而1h训练组NPY含量显著低于对照组,血浆CGRP含量和NPY/CGRP与对照组相比,有下降趋势,但无显著性差异。从而说明,适当的运动训练可降低机体交感神经的兴奋性,抑制NPY的分泌。这对轻度高血压病人和正常人的血压有良好的影响;而长期大负荷的运动训练可促进机体NPY的分泌和抑制CGRP的分泌,导致NPY和CGRP的分泌失调,这可能是运动性高血压和运动性心肌损伤发生的病理生理机制。动态观察血浆NPY和CGRP的含量对于在运动过程中对心血管系统进行医务监督、预防过度训练的发生具有一定的指导意义。②Vitamin E训练组血浆NPY含量显著低于2h训练组,与对照组相比无显著差异;血浆CGRP含量显著高于2h训练组和1h训练组,与对照组相比有上升趋势,但无显著差异;NPY/CGRP显著低于2h训练组,与1h训练组和对照组相比无显著差异。所以Vitamin E可抑制大运动量?

Effect of Copper and Zinc on Accumulation of Vitamin E in Wheat Embryo-derived Callus

[Objective] The aim was to study the effect of the content of copper and zinc on in medium the vitamin E accumulation in wheat embryo-dreived callus.[Method] The mathematical models were established to describe the growth kinetics and the vitamin E accumulation in wheat embryo callus cells.With the aim of getting the highest accumulation of the secondary metabolite Vitamin E,the optimal combination of copper and zinc in medium was confirmed by testing.[Result] The results showed that the production of vitamin E in B5 medium reached the highest value with 2.0 mg/mL ZnSO4·7H2O and 0.1 mg/mL CuSO4·5H2O.The fitting degrees of kinetic models of vitamin E accumulation and cell growth were 97.53% and 95.60%,respectively,which indicated good nonlinear relationships.[Conclusion] Both copper and zinc could affect the accumulation of vitamin E in wheat germ callus,and Copper showed more prominent effect than Zn.Synergism existed in low copper and zinc concentration,and the inhibitive effect enhanced with the increase of the concentrations.

创伤性颅脑损伤患者血清锌、维生素E与病情程度及预后的关系

目的探讨创伤性颅脑损伤(TBI)患者血清锌、维生素E与病情程度及预后的关系。方法选取2020年1月—2023年8月延安大学附属医院神经外科收治的TBI患者135例为TBI组,根据格拉斯哥昏迷量表(GCS)评分分为轻度TBI亚组(GCS评分13~15分,54例)、中度TBI亚组(GCS评分9~12分,45例)、重度TBI亚组(GCS评分3~8分,36例),再根据患者90 d预后分为不良预后亚组(35例)和良好预后亚组(100例),另选同期体检健康者100例为健康对照组。采用锌比色法与高效液相色谱法检测血清锌、维生素E水平;比较TBI组与健康对照组和不同病情程度TBI患者血清锌、维生素E水平;采用Spearman相关系数分析血清锌、维生素E水平与GCS评分的相关性;多因素Logistic回归分析影响TBI患者不良预后的因素;绘制受试者工作特征(ROC)曲线评价血清锌、维生素E水平对TBI患者90 d死亡的预测价值。结果与健康对照组比较,TBI组血清锌、维生素E水平降低(t/P=10.836/<0.001、10.160/<0.001);不同病情程度TBI患者血清锌、维生素E水平比较,轻度TBI亚组>中度TBI亚组>重度TBI亚组(F/P=41.858/<0.001、104.911/<0.001)。135例TBI患者90 d不良预后发生率为25.93%(35/135);血清锌、维生素E水平与GCS评分均呈正相关(r s=0.709/<0.001、0.698/<0.001);GCS评分增加、血清锌升高、维生素E升高为TBI患者不良预后的独立保护因素[OR(95%CI)=0.809(0.690~0.950)、0.706(0.590~0.845)、0.726(0.599~0.880)],基底池异常、中线移位≥5 mm为TBI患者不良预后的独立危险因素[OR(95%CI)=5.989(1.492~24.036)、3.378(1.045~10.922)];血清锌、维生素E水平及二者联合预测TBI患者不良预后的AUC分别为0.783、0.774、0.856,二者联合的AUC大于血清锌、维生素E水平单独预测(Z/P=2.580/0.010、2.727/0.006)。结论TBI患者血清锌、维生素E水平降低,与病情程度加重和预后不良有关,二者联合对TBI患者不良预后有良好的预测价值。

RP/NP-HPLC法检测婴幼儿配方食品中维生素A和维生素E研究

优化婴幼儿配方食品中维生素A和维生素E含量检测的皂化-RPHPLC法和酶解-NPHPLC法,并对检验结果进行对比研究。结果表明:将婴幼儿配方食品样本复溶后再检测其中的维生素A和维生素E含量,提高了检测结果代表性,有利于批量化检测;乙酸乙酯-正己烷溶液(3∶2,v/v)为提取剂时,提取效果好且环保。维生素A和维生素E含量的检测结果分别在各自对应的浓度范围内呈良好线性关系,相关系数R2≥0.999,皂化-RPHPLC法中维生素A和维生素E定量限在27.3~142μg/100g之间,酶解-NPHPLC法中维生素A和维生素E定量限在10.8~112μg/100g之间,酶解-NPHPLC法灵敏度更高。在低中高三个添加水平下,维生素A加标回收率在82.2%~96.8%之间,RSD在1.0%~4.6%之间;维生素E加标回收率在83.5%~100.6%之间,RSD在1.9%~9.7%之间。皂化-RPHPLC法和酶解-NPHPLC法检验结果无显著性差异。优化后的检测方法简单高效,样品代表性好。

共封装硒肽和VE微胶囊制备及其理化特性

通过乳化-冷冻干燥联合技术构建微胶囊体系,以实现对具有不同极性的物质(亲水性硒肽和亲脂性VE)的稳态化共封装。以包埋率作为参考,通过单因素试验考察壁材浓度、硒肽和VE含量等工艺参数对包埋效果的影响。傅里叶变换红外光谱和扫描电子显微镜图像表明微胶囊能够有效封装硒肽和VE,并且具有较好的水分散性,复溶后仍保持双重乳液结构。热稳定性分析和2,2’-联氮双(3-乙基苯并噻唑啉-6-磺酸)阳离子自由基清除实验结果证实,相比于硒肽粉末,微胶囊具有更高的热稳定性和抗氧化活性。电子鼻分析结果进一步证实微胶囊体系对硒肽自身异味具有较好的遮掩效果。体外模拟消化实验表明,微胶囊封装提高了硒肽在模拟胃液中的稳定性,并且硒肽在模拟肠液具有更低的保留率,能够被有效释放。相关研究结论将为富硒功能性食品营养补充剂的开发提供理论依据。

血清维生素E水平与变应性鼻炎关系的研究进展

变应性鼻炎(AR)是由于辅助性T细胞2(Th2)淋巴细胞过度活化而引起的一种鼻腔黏膜非感染性炎症型的疾病,是耳鼻咽喉科最常见的慢性难治性疾病。由于近年来患病率明显上升,越来越多的学者开始关注AR。维生素E在临床实践中被广泛用于预防和治疗不同的疾病,有基础科学研究发现维生素E与AR有着重要的联系,它可以减少免疫变态反应的发生。本文通过对维生素E的代谢、作用机制及其与AR之间的关系的最新研究进展进行综述,旨在为维生素E在AR中的应用提供一定的理论指导。

少精弱精方联合枸橼酸氯米芬和维生素E对少精弱精症患者的临床疗效

目的 考察少精弱精方联合枸橼酸氯米芬和维生素E对少精弱精症患者的临床疗效。方法 102例患者随机分为对照组和观察组,每组51例,对照组给予枸橼酸氯米芬和维生素E,观察组在对照组基础上加用少精弱精方,疗程3个月。检测临床疗效、精液参数(精子存活率、精液量、精子密度、精子向前活动率、a级精子、a+b级精子)、血清性激素(睾酮、黄体生成素、促卵泡生成素)、精液凋亡因子(Caspase-3、Caspase-8)、不良反应发生率变化。结果 观察组总有效率高于对照组(P<0.05)。治疗后,2组精液参数、睾酮升高(P<0.05),黄体生成素、促卵泡生成素、精液凋亡因子降低(P<0.05),以观察组更明显(P<0.05)。2组不良反应发生率比较,差异无统计学意义(P>0.05)。结论 少精弱精方联合枸橼酸氯米芬和维生素E可安全有效地改善少精弱精症患者血清性激素水平,降低精液凋亡因子水平,提高临床疗效、精子质量和活力。

复方氨基丁酸维E联合丙戊酸钠对癫痫患儿认知功能及血清α-Syn、HSP70水平的影响

目的研究复方氨基丁酸维E联合丙戊酸钠对癫痫患儿认知功能及血清α-突触核蛋白(α-Syn)、热休克蛋白70(HSP70)水平的影响。方法选取周口市中心医院收治的116例癫痫患儿,根据治疗方案分为联合组和对照组,各58例。对照组接受丙戊酸钠治疗,联合组接受复方氨基丁酸维E联合丙戊酸钠治疗。比较两组临床疗效、治疗前、治疗3、6个月后癫痫持续发作时间及发作频率、韦氏儿童智力量表第四版(WISC-Ⅳ)及简易精神状态检测量表(MMSE)评分、血清相关因子[α-Syn、神经元特异性烯醇化酶(NSE)、HSP70、脑源性神经营养因子(BDNF)]水平、不良反应发生率。结果联合组临床总有效率高于对照组(P<0.05)。治疗3、6个月后,联合组癫痫发作频率少于对照组,持续发作时间短于对照组(P<0.05);WISC-Ⅳ、MMSE评分高于对照组(P<0.05);血清HSP70、α-Syn、NSE水平低于对照组,BDNF水平高于对照组(P<0.05)。两组间不良反应总发生率差异无统计学意义(P>0.05)。结论采用复方氨基丁酸维E与丙戊酸钠联合治疗可有效改善癫痫患儿认知功能及神经功能,降低癫痫持续发作时间及发作频率,增强疗效,安全性良好。

维生素A、维生素E水平与儿童喘息性疾病的相关性研究

目的探讨维生素A、维生素E水平与儿童喘息性疾病的相关性。方法选取234例喘息性疾病患儿作为喘息组,另选取同期244例健康体检儿童作为对照组。比较两组维生素A、维生素E水平,并应用Pearson或Spearman相关性分析维生素A、维生素E水平与喘息组肺功能的相关性。结果喘息组维生素A水平、维生素A正常者占比均低于对照组,亚临床维生素A缺乏者占比和可疑亚临床维生素A缺乏者占比均高于对照组(均P<0.05)。喘息组维生素E水平、维生素E正常者占比均低于对照组,维生素E缺乏者占比和维生素E不足者占比均高于对照组(均P<0.05)。Pearson相关性分析结果显示,维生素A水平与达峰时间比、达峰容积、呼出气一氧化氮(FeNO)、免疫球蛋白(Ig)E、IgG和外周血嗜酸性粒细胞(EOS)绝对值均无相关性(均P>0.05)。维生素E水平与达峰时间比、达峰容积、IgE、IgG和外周血EOS绝对值也无相关性(均P>0.05),但与FeNO呈负相关(P<0.05)。结论喘息性疾病患儿的维生素A、维生素E水平较低,且维生素E水平与FeNO呈负相关。

The protective effect of vitamin E against oxidative damage caused by formaldehyde in the testes of adult rats

Aim： To investigate the effect of formaldehyde （FA） on testes and the protective effect of vitamin E （VE） against oxidative damage by FA in the testes of adult rats. Methods： Thirty rats were randomly divided into three groups： （1） control; （2） FA treatment group （FAt）; and （3） FAt ＋ VE group. FAt and FAt ＋ VE groups were exposed to FA by inhalation at a concentration of 10 mg/m^3 for 2 weeks. In addition, FAt ＋ VE group were orally administered VE during the 2-week FA treatment. After the treatment, the histopathological and biochemical changes in testes, as well as the quantity and quality of sperm, were observed. Results： The testicular weight, the quantity and quality of sperm, the activities of superoxide dismutase （SOD）, glutathione peroxidase （GSH-Px） and glutathione （GSH） were significantly decreased whereas the level of malondialdehyde （MDA） was significantly increased in testes of rats in FAt group compared with those in the control group. VE treatment restored these parameters in FAt ＋ VE group. In addition, microscopy with hematoxylin-eosin （HE） staining showed that seminiferous tubules atrophied, seminiferous epithelial cells disintegrated and shed in rats in FAt group and VE treatment significantly improved the testicular structure in FAt ＋ VE group. Conclusion： FA destroys the testicular structure and function in adult rats by inducing oxidative stress, and this damage could be partially reversed by VE.

献血者HEV感染合并HBV感染的特征分析

目的探讨合肥地区献血者中戊型肝炎病毒合并乙型肝炎病毒感染情况与特征分析,分析其与HBsAg/HBV DNA检测结果的关系。方法随机抽取2021年7月1日—2023年2月25日无偿献血者标本1301份纳入研究对象,根据HBsAg和HBV DNA检测结果将标本分为3组,HBsAg阳性组169份标本、HBsAg阴性组102份标本、合格组1030份标本分别采用酶联免疫吸附试验(ELISA)检测血浆中HEV Ag、抗HEV-IgM和抗HEV-IgG。依据抗HEV抗体检测结果采用RT-PCR法对合格组标本100份、HBsAg阳性组标本20份、HBsAg阴性组标本30份进行HEV RNA检测。分析3组献血者中抗HEV-IgM和抗HEVIgG检测阳性献血者基本情况进行统计分析。结果3组1301份标本HEV Ag检测均为阴性。HBsAg阴性组检出抗HEV阳性率为22.55%,与HBsAg阳性组相比(22.55%vs 17.75%)差异无统计学意义(P>0.05);但与合格组相比(22.55%vs 13.79%),差异有统计学意义(P<0.05)。HBsAg阳性组和合格组均检出抗HEV-IgG+IgM抗体,阳性率分别为1.18%和0.29%,且合格组检出抗HEV-IgM抗体阳性率为0.39%。留取3组150份标本未检出HEV RNA。HBsAg阴性组随着献血者年龄的增长检出抗HEV抗体阳性率有升高趋势,但差异无统计学意义(P>0.05)。HBsAg阳性组和合格组抗-HEV抗体阳性率在41~50岁人群最高,分别为27.27%和27.04%,其次是51~55岁人群。1301份标本检出抗HEV抗体阳性男性献血者151人,阳性率16.74%,女性45人,阳性率11.28%,检出抗HEV阳性男女人数之比为3.5∶1,差异有统计学意义(P<0.05)。结论合肥地区献血者中存在HEV感染合并HBV感染,多为既往感染,也存在急性感染,HBV隐匿感染状态中HEV感染者居多。

辅酶Q10和维生素E与黄精赞育胶囊联合治疗弱精症的临床效果观察

目的:观察辅酶Q10和维生素E与黄精赞育胶囊联合治疗弱精症的临床疗效。方法:选择2022年1月-2022年9月初次就诊并接受治疗的弱精症患者(确诊为肾虚精亏夹湿热型)90例,采用随机对照法分为对照1组(A组)、对照组2组(B组)和观察组(C组)。A组给予辅酶Q10和维生素E治疗,B组给予黄精赞育胶囊治疗,C组给予黄精赞育胶囊+辅酶Q10和维生素E治疗。治疗结束6个月后随访配偶妊娠情况。比较三组患者的精液质量[精子浓度、精子活力(PR%)、正常形态率、DNA碎片率(DFI)和精液活性氧(ROS)含量]及患者配偶的临床妊娠率、显效率、有效率。结果:三组间治疗前、治疗后的精液质量各项比较,差异均无统计学意义(P>0.05)。A组治疗后的精子活力和正常形态率高于治疗前,差异有统计学意义(P<0.05);治疗后的精子浓度与治疗前比较,差异无统计学意义(P>0.05)。B组治疗后的精子浓度、精子活力、正常形态率与治疗前比较,差异均无统计学意义(P>0.05)。C组治疗后精子活力高于治疗前,差异有统计学意义(P<0.05);治疗后精子浓度和正常形态百分率与治疗前比较,差异无统计学意义(P>0.05)。治疗后三组患者的精子DNA碎片率、精浆ROS生成量均低于治疗前,差异有统计学意义(P<0.05)。三组临床妊娠率、显效率和总有效率比较,差异无统计学意义(P>0.05)。结论:联合用药与辅酶Q10和维生素E治疗效果相似,均略优于黄精赞育胶囊治疗效果,联合用药是否优于辅酶Q10和维生素E需要扩大样本量进一步研究。

Effect of vitamin E succinate on expression of TGF-β_1, c-Jun and JNK1 in human gastric cancer SGC-7901 cells

INTRODUCTIONVitamin E succinate (RRR-α-Tocopheryl Succinate,VES), a derivative of natural vitamin E, is acompound esterified by succinic acid and 6-hydroxyl-α-tocopheryl.