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The Pregnancy-Specific Stress How Factor Risk for Preterm Birth 妊娠特异性应激是早产的风险因素
J. Pérez‐Molina, Aleyda Carolina Barajas-Serrano, Andrés Palomera-Chávez, J. G. Panduro-Barón, N. Quezada-Figueroa, G. Yanowsky-Reyes, J. Orozco-Pérez
Citation: The Pregnancy-Specific Stress How Factor Risk for Preterm Abstract Preterm birth (PB) has a multifactorial etiology and psychosocial stress can be a risk factor. Objective. Quantify the as sociation of the specific stress of pregnancy with PB. Material and methods. A case-control study was conducted in 254 preterm mother-child dyads and 254 term dyads, between 2010 and 2011, at the Civil Hospital of Guadalajara. The dependent variable was PB (24-36 weeks of gestation) and the independent stress specific to pregnancy. Gestational age was confirmed with the Capurro and Ballard methods. The specific stress of pregnancy was sought by direct interview. We inquired about psychosocial, obstetric and illicit drugs. The association was evaluated with logistic regression. Results. The age of the mothers was 25 ± 6 years. The frequency of psychosocial factors and drug use was similar. In the bivariate analysis were more frequent in PB, antecedent of PB (OR: 1.98, CI95%: 1.17-3.36), diseases in pregnancy (OR: 1.49, CI95%: 1.03-2.17), multiple pregnancy (OR: 14.72, CI95%: 4.28-60.63), being born by caesarean section (OR: 4.93, CI95%: 3.26-7.48, worrying about work and family care (OR 1.60, CI95% 1.01-2.55) and paying for clothes, food and medical expenses of the baby (OR 1.55, CI95% 1.00-2.39). A multivariate model identified as covariates associated with PB to worry a lot about the care of the new baby (OR 2.58, CI95% 1.21-5.47) and to be born by caesarean section (OR 5.59, CI95% 2.63-11.90). Discussion and conclusion. Of the variables related to specific stress of pregnancy, only worry much about the care of the baby was associated with PB, as well as being born by cesarean section.
摘要早产(PB)具有多因素病因,社会心理压力可能是一个危险因素。目标。量化妊娠特定应激与PB的关系。材料和方法。2010年至2011年期间,在瓜达拉哈拉民用医院对254对早产儿母子和254对足月母子进行了病例对照研究。因变量为胎龄(24-36周)和妊娠特异性独立应激。胎龄用Capurro和Ballard方法确定。具体的怀孕压力是通过直接访谈来寻求的。我们询问了社会心理、产科和非法药物。用逻辑回归评估其相关性。结果。母亲年龄25±6岁。心理社会因素和药物使用频率相似。双变量分析中,孕前因素(OR: 1.98, CI95%: 1.17-3.36)、孕期疾病(OR: 1.49, CI95%: 1.03-2.17)、多胎妊娠(OR: 14.72, CI95%: 4.28-60.63)、剖宫产(OR: 4.93, CI95%: 3.26-7.48)、担心工作和家庭护理(OR: 1.60, CI95%: 1.01-2.55)、为婴儿支付衣食医药费(OR 1.55, CI95% 1.00-2.39)出现频率较高。多变量模型确定了与早产相关的协变量:担心新生儿的护理(OR 2.58, CI95% 1.21-5.47)和剖腹产(OR 5.59, CI95% 2.63-11.90)。讨论与结论。在与怀孕特定压力相关的变量中,只有担心对婴儿的照顾与PB有关,以及剖腹产。
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引用次数: 0
Bioactivities and Phytochemical Studies of Acrocarpus fraxinifolius Bark Wight Arn 芦竹树皮的生物活性和植物化学研究
H. El-Rafie, A. Zeid, A. Sleem, Rs Mohammed
Acrocarpus is a genus of flowering plants in the legume family Fabaceae which considered as a large and economically important family. This study aimed to carry out the biological activity screening on the total ethanol and successive extracts of Acrocarpus fraxinofolius (A. fraxinofolius) bark, for the first time. The biological activity studied embraced, management of diabetes in alloxan induced diabetic rats, cytotoxic activity against four human tumor cell lines and hepatoprotective activity against CCl4-induced hepatotoxicity in rats and the activity was studied by assaying the serum marker enzymes like AST, ALT, and ALP. Concerning this, the petroleum ether extract (PEE) showed the most bioactive extract where, the anti-diabetic activity exhibited by 100mg of PEE extract was 74.38% relative to metformin. It also showed a significant anti-proliferative activity against MCF-7 (IC50=2.35µg), Hela (IC50=3.85µg) and HEPG-2 (IC50=9.54µg) compared with Doxorubicin as reference drug. The hepatoprotective activity of the PEE was evidenced by a significant decrease in the liver function enzymes, i.e. AST, ALT and ALP by 29.18%, 28.26%, and 34.11%, respectively, using silymarin as the reference drug, compared to their concentration levels in an untreated group with liver damage induced by CCl₄. Based on the above outcomes, further phytochemical investigation including GC/MS analysis of its fractions, GLC analysis of its sterol fraction, column chromatography and TLC fractionation of PEE to separate its bioactive compounds were conducted.
牛角豆属是豆科开花植物的一个属,是一个经济上重要的大科。本研究旨在首次对芦笋树皮总乙醇和连续提取物进行生物活性筛选。研究的生物活性包括四氧嘧啶诱导的糖尿病大鼠的糖尿病管理,对四种人类肿瘤细胞系的细胞毒活性和对ccl4诱导的大鼠肝毒性的肝保护活性,并通过测定血清标记酶如AST, ALT和ALP来研究其活性。其中,石油醚提取物(PEE)的生物活性最高,100mg的PEE提取物的抗糖尿病活性为二甲双胍的74.38%。与对照药物阿霉素相比,其对MCF-7 (IC50=2.35µg)、Hela (IC50=3.85µg)和HEPG-2 (IC50=9.54µg)的抗增殖活性显著。以水飞蓟素为参比药物,PEE的肝功能酶AST、ALT和ALP浓度较未治疗的CCl - 4肝损伤组分别下降29.18%、28.26%和34.11%,证明PEE具有保肝活性。基于以上结果,我们对其进行了进一步的植物化学研究,包括对其组分进行GC/MS分析,对其甾醇组分进行GLC分析,对PEE进行柱层析和TLC分离,以分离其生物活性成分。
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引用次数: 7
Paradigm Shift in Classical Drug Research: Challenges to Mordern Pharmaceutical Sciences 经典药物研究的范式转变:对现代药物科学的挑战
Riddhi Shukla, Rajeshri D. Patel, Prakruti Buch, Tejas P Sharma, M. Raval, N. Sheth
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引用次数: 4
Full Characterization of Heterogeneous Antibody Samples under Denaturing and Native Conditionson a Hybrid Quadrupole-Orbitrap Mass Spectrometer 变性和天然条件下异质抗体样品的四极轨道阱质谱分析
Rowan E. Moore, K. Scheffler, Eugen Damoc, Jennifer N. Sutton, A. Bailey, S. Houel, Simon Cubbon, J. Josephs
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引用次数: 0
[Keynote Talk]: Treatment Satisfaction and Safety of Sitagliptin versus Pioglitazone in Patients with Type 2 Diabetes Mellitus Inadequately Controlled on Metformin Monotherapy [主题演讲]:西格列汀与吡格列酮对二甲双胍单药控制不充分的2型糖尿病患者的治疗满意度和安全性
Shahnaz Haque, Anandi Shukla, Sunita Singh, A. Kem
Background: This study was designed to assess the treatment satisfaction between Sitagliptin versus Pioglitazone added to Metformin in patients with type 2 diabetes mellitus (T2DM). Methods: We conducted a prospective, open label, randomized, parallel group study in SIMS, Hapur, U.P. Eligible patients fulfilling inclusion criteria were randomized into two groups having 25 patients in each group using tab Sitagliptin 100mg,tab Pioglitazone 30mg added to ongoing tab Metformin (500mg) therapy for 16 weeks. The follow-up visits were on weeks 4, 12 and 16. Results: 16 weeks later, addition of Sitagliptin 100mg compared to that of Pioglitazone 30mg to ongoing Metformin therapy provided similar glycosylated haemoglobin (HbA1c) lowering efficacy in patients with T2DM with inadequate glycemic control on metformin monotherapy. Change in HbA1c in group1 was -0.656±0.21% (p<0.0001) whereas in group 2 was -0.748±0.35% (p<0.0001). Hence decrease in HbA1c from baseline was more in group2.Both treatments were well tolerated with negligible risk of hypoglycaemia. Weight loss was observed with Sitagliptin in contrast to weight gain seen in Pioglitazone. Conclusions: In this study, Sitagliptin 100 mg along with metformin therapy in comparison to pioglitazone 30 mg plus metformin therapy was effective, well-tolerated and improved glycemic control in both the groups. Addition of pioglitazone had cause oedema and weight gain to the patients whereas sitagliptin caused weight loss in its patients.
背景:本研究旨在评估西格列汀与吡格列酮联合二甲双胍治疗2型糖尿病(T2DM)患者的治疗满意度。方法:我们在美国西格列汀、Hapur、U.P.进行了一项前瞻性、开放标签、随机、平行组研究,符合纳入标准的患者随机分为两组,每组25例患者,使用西格列汀100mg、吡格列酮30mg加用二甲双胍(500mg)治疗16周。随访时间为第4周、第12周和第16周。结果:16周后,在正在进行的二甲双胍治疗中,西格列汀100mg与吡格列酮30mg相比,在单用二甲双胍治疗血糖控制不足的T2DM患者中,糖基化血红蛋白(HbA1c)的降低效果相似。1组HbA1c变化为-0.656±0.21% (p<0.0001), 2组HbA1c变化为-0.748±0.35% (p<0.0001)。因此,第2组的HbA1c较基线下降更多。两种治疗均耐受性良好,低血糖风险可忽略不计。西格列汀组体重减轻,而吡格列酮组体重增加。结论:在本研究中,与吡格列酮30 mg加二甲双胍治疗相比,西格列汀100 mg联合二甲双胍治疗有效,耐受性良好,两组血糖控制均得到改善。吡格列酮组患者出现水肿和体重增加,而西格列汀组患者出现体重减轻。
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引用次数: 0
High-Throughput, Purification-Free, Multiplexed Profiling of Circulating miRNA for Discovery, Validation, and Diagnostics 用于发现、验证和诊断的循环miRNA的高通量、无纯化、多路分析
J. Quintana, I. Stoner, M. Tackett, G. Doran, Conor Rafferty, A. Windemuth, J. Tytell, D. Pregibon
To address the needs for circulating miRNA biomarker validation, we developed the Multiplexed Circulating microRNA assay. This assay enables the detection of up to 68 microRNA targets per sample in 96-well format with readout on standard flow cytometers and analysis with an included bioinformatics software package. The Circulating microRNA assay combines particle-based multiplexing, using patented Firefly hydrogel particles, with single-step RT-PCR signal amplification using universal primers. Thus, the Circulating microRNA assay leverages PCR sensitivity while eliminating the need for separate reverse transcription reactions and mitigating amplification biases introduced by target-specific qPCR. Furthermore, the ability to multiplex targets in each well eliminates the need to split valuable samples into multiple reactions. Results from the Circulating microRNA assay are displayed and interpreted using our included Firefly Analysis Workbench, which allows visualization, normalization, and export of experimental data with only a few mouse clicks. To aid discovery and validation of biomarkers, we have generated fixed panels for Oncology, Cardiology, Neurology, Immunology, and Liver Toxicology. These carefully curated panels include hemolysis markers to assess sample quality, as well as critical normalization factors. Here we present the data from several studies investigating circulating and tumor microRNA profiles using the Firefly Circulating microRNA Assay Fixed Panels. Together, this novel combination of bioinformatics tools and multiplexed, high-sensitivity assays enables rapid discovery and validation of microRNA biomarker signatures from fluid specimens. Citation Format: Jessica Tytell, Issac Stoner, Michael Tackett, Graeme Doran, Conor Rafferty, Andreas Windemuth, Daniel Pregibon. High-throughput,purification-free, multiplexed profiling of circulating miRNA for discovery,validation, and diagnostics. [abstract]. In: Proceedings of the 107th Annual Meeting of the American Association for Cancer Research; 2016 Apr 16-20; New Orleans, LA. Philadelphia (PA): AACR; Cancer Res 2016;76(14 Suppl):Abstract nr 1082.
为了满足循环microRNA生物标志物验证的需求,我们开发了多重循环microRNA测定。该检测方法可检测多达68个microRNA靶标,每个样品96孔格式,在标准流式细胞仪上读出,并附带生物信息学软件包进行分析。循环microRNA检测结合了基于颗粒的多路复用,使用专利的Firefly水凝胶颗粒,以及使用通用引物的单步RT-PCR信号扩增。因此,循环microRNA分析利用PCR敏感性,同时消除了对单独的逆转录反应的需要,并减轻了靶标特异性qPCR引入的扩增偏差。此外,在每口井中多重目标的能力消除了将有价值的样品分成多个反应的需要。循环microRNA分析的结果显示和解释使用我们的萤火虫分析工作台,它允许可视化,规范化和导出实验数据,只需点击几下鼠标。为了帮助发现和验证生物标志物,我们已经为肿瘤学、心脏病学、神经学、免疫学和肝脏毒理学制作了固定的面板。这些精心策划的面板包括溶血标志物,以评估样品质量,以及关键的正常化因素。在这里,我们介绍了几项研究的数据,这些研究使用萤火虫循环microRNA测定固定板调查循环和肿瘤microRNA谱。总之,这种生物信息学工具和多路、高灵敏度分析的新组合可以快速发现和验证流体标本中的microRNA生物标志物特征。引文格式:Jessica Tytell, Issac Stoner, Michael Tackett, Graeme Doran, Conor Rafferty, Andreas Windemuth, Daniel Pregibon。用于发现、验证和诊断的循环miRNA的高通量、无纯化、多路分析。[摘要]。摘自:第107届美国癌症研究协会年会论文集;2016年4月16-20日;新奥尔良,洛杉矶。费城(PA): AACR;癌症杂志2016;76(14增刊):摘要第1082期。
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引用次数: 0
Supplementation of Corosolic Acid Prevents the Development of Neuropathic Pain in Streptozotocin Induced Diabetic Rats 补充科罗索酸可预防链脲佐菌素诱导的糖尿病大鼠神经性疼痛的发生
A. Upaganlawar, C. Upasani
The present study was design to screen the neuroprotective and antioxidant activity of corosolic acid in painful diabetic neuropathy (DN).  Diabetes was induced in rats by single dose of STZ (60mg/kg, i.p). Diabetic rats were tested week for the development of pain, at 6th week the rats developed significant neuropathic pain. They were divided into different groups and treated with Corosolic acid (2 and 4 mg/kg, p.o) for further two weeks. Pain was assessed in the diabetic rats by mechano-tactil allodynia, mechanical hyperalgesia and cold allodynia. At the end of treatment period rats were scarified and biochemical changes such as plasma glucose level, endogenous antioxidants (Lipid peroxidation, reduced glutathione, superoxide dismutase and catalase) in sciatic nerve were evaluated. Further Na+/K+ ATPase and nitric oxide content was also evaluated. Treatment with corosolic acid for two weeks restored the altered body weight and elevated blood sugar level. Further corosolic acid showed dose dependent reduction in pain in neuropathic animals. The level of endogenous antioxidants enzymes, Na+/K+ ATPase and nitric oxide were significantly prevented. In conclusion. The result of the present study suggests the antidiabetic, antioxidant and neuroprotectieve property of corosolic acid in diabetic rats with neuropathic pain.
本研究旨在筛选柯罗果酸对疼痛性糖尿病神经病变(DN)的神经保护和抗氧化活性。STZ单剂量(60mg/kg, ig)诱导大鼠糖尿病。第6周,糖尿病大鼠出现明显的神经性疼痛。将它们分成不同的组,分别给予柯罗果酸(2和4 mg/kg, p.o)再处理2周。采用机械触觉异常痛觉、机械痛觉过敏和冷异常痛觉评价糖尿病大鼠的疼痛。治疗期结束后,对大鼠进行切片,观察血浆葡萄糖水平、坐骨神经内源性抗氧化剂(脂质过氧化、还原性谷胱甘肽、超氧化物歧化酶和过氧化氢酶)的生化变化。进一步测定Na+/K+ atp酶和一氧化氮含量。用科罗索酸治疗两周后,体重恢复正常,血糖水平升高。进一步的科罗索酸显示出对神经性动物疼痛的剂量依赖性减轻。内源性抗氧化酶、Na+/K+ atp酶和一氧化氮水平显著降低。在结论。本研究结果提示柯罗果酸对糖尿病神经性疼痛大鼠具有抗糖尿病、抗氧化和神经保护作用。
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引用次数: 1
Biological Activities of Species in the Genus Tulbaghia: A Review 土巴革菌属物种的生物活性研究进展
S. Takaidza, M. Pillay, F. Mtunzi
Since time immemorial, plants have been used by several communities to treat a large number of diseases. Numerous studies on the pharmacology of medicinal plants have been done. Medicinal plants constitute a potential source for the production of new medicines and may complement conventional antimicrobials and probably decrease health costs. Phytochemical compounds in plants are known to be biologically active aiding, for example, as antioxidants and antimicrobials. The overwhelming challenge of drug resistance has resulted in an increasing trend towards using medicinal plants to treat various diseases, especially in developing countries. Species of the genus Tulbaghia has been widely used in traditional medicine to treat various ailments such rheumatism, fits, fever, earache, tuberculosis etc. It is believed that the species possess several therapeutic properties. This paper evaluates some of the biological activities of the genus Tulbaghia. It is evident from current literature that Tulbaghia violacea is the most promising species. The other species of Tulbaghia still require further studies to ascertain their medicinal potential. Key words: Tulbaghia, antioxidants, antimicrobial, anticancer, biological activities.
自古以来,植物就被一些社区用来治疗大量疾病。人们对药用植物的药理学进行了大量的研究。药用植物是生产新药的潜在来源,可作为常规抗菌剂的补充,并可能降低卫生成本。众所周知,植物中的植物化学化合物具有生物活性,例如抗氧化剂和抗菌剂。耐药性的巨大挑战导致使用药用植物治疗各种疾病的趋势日益增加,特别是在发展中国家。土巴革菌属的物种在传统医学中被广泛用于治疗各种疾病,如风湿病、痉挛、发烧、耳痛、肺结核等。据信,该物种具有几种治疗特性。本文对土巴格菌属的一些生物活性进行了评价。从目前的文献中可以明显地看出,紫郁金香是最有前途的物种。其他种类的Tulbaghia仍需进一步研究以确定其药用潜力。关键词:土巴菌,抗氧化剂,抗菌,抗癌,生物活性
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引用次数: 6
Extracts of Ocimum gratissimum Leaves Inhibits Fe2+ and Sodium Nitroprusside Induced Oxidative Stress in Rat Liver 茴香叶提取物对大鼠肝脏氧化应激的抑制作用
O. Ojo, O. Oloyede
This study investigate the antioxidative properties and the ability of aqueous, ethanol and ethyl acetate extracts from Ocimum gratissimum (OG) leaves to inhibit some pro-oxidants (Fe and sodium nitroprusside) induced lipid peroxidation in rat’s liver homogenates in vitro. The ability of the extracts to inhibit 25 μM FeSO4 and 7.0 μM sodium nitroprusside induced lipid peroxidation in isolated rat’s liver was determined. The results of the study revealed that both pro-oxidants caused a significantly decrease in (p<0.05) accumulation of lipid peroxides. However, aqueous extract of Ocimum gratissimum shows a high ability to inhibit lipid production in the liver induced with SNP than Fe. Ethanol and ethyl acetate extract of Ocimum gratissimum which shows a high ability to inhibit lipid production more when induced with Fe than SNP. However, ethyl acetate fraction of Ocimum gratissimum shows a higher inhibitory effect on both Fe and SNP induced lipid peroxidation in rat’s liver. This might be as a result of its significantly higher extractable phytochemicals. Therefore, Fe II and sodium nitroprusside induced oxidative stress could be managed by dietary intake of Ocimum gratissimum leaves.
本研究考察了枸杞叶水提物、乙醇提物和乙酸乙酯提物对大鼠肝脏匀浆中一些促氧化剂(铁和硝普钠)诱导的脂质过氧化的抑制作用。测定提取物对25 μM FeSO4和7.0 μM硝普钠诱导的离体大鼠肝脏脂质过氧化的抑制能力。研究结果显示,两种促氧化剂均能显著降低脂质过氧化物的积累(p<0.05)。然而,与铁相比,茴香水提物对SNP诱导的肝脏脂质产生的抑制能力更强。铁诱导的茴香乙醇和乙酸乙酯提取物比SNP诱导的茴香提取物更能抑制油脂的产生。然而,竹叶乙酸乙酯部分对铁和SNP诱导的大鼠肝脏脂质过氧化均有较高的抑制作用。这可能是由于其可提取的植物化学物质明显更高。因此,铁离子和硝普钠诱导的氧化应激可以通过饲粮摄入西芹叶来调控。
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引用次数: 2
Solid Lipid Nanoparticles of Levamisole Hydrochloride 盐酸左旋咪唑固体脂质纳米颗粒
S. Agrawal, Pravina Gurjar, Supriya Bhide, R. Gaud
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引用次数: 0
期刊
World Academy of Science, Engineering and Technology, International Journal of Pharmacological and Pharmaceutical Sciences
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