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Potential anticancer activity of chemically characterized extract of Olea europaea (Olive) leaves 油橄榄叶化学特征提取物的潜在抗癌活性
4区 农林科学 Q3 AGRONOMY Pub Date : 2023-08-16 DOI: 10.9755/ejfa.2023.3136
Shehla Nasar Mir Najibullah, Javed Ahamad, Shahnaz Sultana, Subasini Uthirapathy
Olea europaea Linn. (Olive) is considered as essential component of Mediterranean diets. Olive leaves, fruits, and oil are traditionally known for several health benefits including diabetes, cardiac complications, cancer, etc. The objective of the present study is to determine the anticancer potential of chemically characterized O. europaea extract in MTT assay and EB/AO double staining method using Human lung cancer cell lines (A549). The chemical constituents present in the ethyl acetate extract of O. europaea leaves were characterized by GC-MS and its cytotoxic activity was assessed by MTT assay and EB/AO double staining method. The GC-MS analysis identified 63 chemical constituents, and neophytadiene (21.80%), zingiberenol (12.36%), and allohimachalol (5.49%) was found as major chemical constituents in ethyl acetate extract of O. europaea leaves. O. europaea produces a time and dose-dependent inhibition of cell proliferation of A549 cell lines. The cell viability of A549 cell lines after 24 hrs treatment with O. europaea ranged from 97.96±3.44 to 18.95±2.14 % for a concentration range of 0.5-500 μg/mL, respectively, with IC50 value of 21.91±1.8 μg/mL. EB/AO double staining shows significant apoptosis in early and late apoptotic, and necrotic cells with increased volume and showed uneven orange-red fluorescence at their periphery. The study outcome shows that O. europaea extract significantly inhibited cell proliferation and apoptosis in human lung cancer (A549) cell lines, and it also explores the chemical composition of O. europaea leaves extract. Keywords: Apoptosis, A549 cell lines, Cancer, GC-MS, MTT assay, Olea europea, Olive.
油橄榄。(橄榄)被认为是地中海饮食的重要组成部分。传统上,橄榄叶、水果和橄榄油对健康有多种益处,包括糖尿病、心脏并发症、癌症等。以肺癌细胞株A549为实验对象,采用MTT法和EB/AO双染色法研究了木香提取物的抗癌作用。采用气相色谱-质谱法(GC-MS)对欧花叶乙酸乙酯提取物的化学成分进行了表征,并采用MTT法和EB/AO双染色法对其细胞毒活性进行了评价。气相色谱-质谱分析共鉴定出63种化学成分,其中新叶二烯(21.80%)、姜烯醇(12.36%)和别柳马草醇(5.49%)为主要化学成分。木香草对A549细胞株的增殖具有时间和剂量依赖性的抑制作用。在0.5 ~ 500 μg/mL浓度范围内,对A549细胞株处理24 h后,细胞存活率为97.96±3.44 ~ 18.95±2.14%,IC50值为21.91±1.8 μg/mL。EB/AO双染色显示早期和晚期凋亡细胞明显凋亡,坏死细胞体积增大,周围橙红色荧光不均匀。研究结果表明,木香叶提取物对人肺癌(A549)细胞株的细胞增殖和凋亡有明显的抑制作用,并对木香叶提取物的化学成分进行了探讨。 关键词:凋亡,A549细胞系,癌症,气相色谱-质谱,MTT法,欧洲油橄榄,橄榄;& # x0D;
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 Keywords: Apoptosis, A549 cell lines, Cancer, GC-MS, MTT assay, Olea europea, Olive.
 
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引用次数: 1
Effect of Guazuma ulmifolia tannins in the diet of Pelibuey lambs on animal performance and meat characteristics 饲粮中添加枸杞单宁对Pelibuey羔羊生产性能和肉品质的影响
4区 农林科学 Q3 AGRONOMY Pub Date : 2023-08-16 DOI: 10.9755/ejfa.2023.3138
Marco Antonio Ayala Monter, Omar Hernández Mendo, David Hernández Sánchez, Silvia López Ortiz, Gilberto Aranda Osorio, Ricardo Martínez Martínez
The objective of this experiment was to evaluate the response of animal performance and meat characteristics of Pelibuey lambs to tannins of Guazuma ulmifolia Lam. in the diet. Twenty-eight male Pelibuey lambs (initial body weight of 23.6 ± 1.0 kg; 5 months old) were randomly assigned to one of four treatments (T): T1, control (base diet); T2, diet 1.5% tannins; T3, diet 2.5% tannins; and T4, diet 1000 IU vitamin E. Vitamin E was used as a positive control treatment. The variables evaluated were daily weight gain (DWG), dry matter intake (DMI), feed conversion, and carcass and meat characteristics. The experimental design was completely randomized, and treatments means were compared with Tukey test (P<0.05). None of the evaluated variables were different between treatments (P>0.05), except meat color (P<0.05), with higher values of L*(34.88), a*(11.49), and b*(2.28) when tannins were added to the diet of the lambs, without affecting the dry matter intake. Including Guazuma ulmifolia foliage in sheep feeding could be a feasible alternative. Keywords: Carcass dressing; Guazuma; Meat quality; Pelibuey sheep; Tannin
本试验旨在研究枇杷草鞣质对枇杷草羔羊生产性能和肉质特性的影响。在饮食方面。公绵羊28只(初始体重23.6±1.0 kg);5个月大的婴儿被随机分配到四种处理(T)中的一种:T1,对照组(基础日粮);T2,日粮单宁1.5%;T3,日粮单宁2.5%;和T4,饲粮1000iu维生素E,维生素E作为阳性对照治疗。评估的变量包括日增重(DWG)、干物质采食量(DMI)、饲料系数以及胴体和肉质特性。试验设计完全随机化,处理均数采用Tukey检验(P<0.05)。除肉色(P>0.05)外,其余评价变量在处理间均无差异(P>0.05),饲粮中添加单宁后,羔羊的L*(34.88)、a*(11.49)和b*(2.28)值较高,但不影响干物质采食量。在绵羊饲料中加入石榴叶可能是一种可行的替代方案。 关键词:胴体屠宰;Guazuma;肉的质量;Pelibuey羊;丹宁酸
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引用次数: 0
Incidence and Severity of Virus Diseases of Cowpea (Vigna unguiculata L. Walp) Under Varying Planting Density and Insecticidal Spray Regimes 不同种植密度和喷虫方式下豇豆病毒病的发病率和严重程度
IF 1.1 4区 农林科学 Q3 AGRONOMY Pub Date : 2023-07-07 DOI: 10.4038/jfa.v16i1.5281
S. A. Alaka, O. S. Balogun
Viral diseases are a major problem for cowpea production in Nigeria, causing yield reductions of up to 100%. To combat this, farmers use insecticide sprays and manipulate plant population densities. A field experiment was conducted in the Southern Guinea Savannah agro-ecological zone of Nigeria in 2016 cropping season to assess the impact of planting density and insecticidal spray regimes on virus diseases in cowpea. The study found that the lowest disease incidence (32.2%) was observed at a density of 25×75 cm, and the highest (41.9%) at a density of 75×75 cm. The combination of a density of 25×7 5cm with three insecticidal spray regimes had the lowest incidence (18.6%), while 75×75 cm with no insecticidal spray had the highest (66.5%) disease incidence. Thus, it is recommended to use a planting density of 25×75 cm with three insecticidal spray regimes. This study emphasizes the importance of planting density and insecticidal spray regimes in managing viral diseases in cowpea production. Farmers can utilize this information to reduce disease incidence and severity and increase yield.
病毒性疾病是尼日利亚豇豆生产的一个主要问题,导致产量下降高达100%。为了解决这个问题,农民使用杀虫剂喷洒和控制植物种群密度。在2016年种植季,在尼日利亚南几内亚大草原农业生态区进行了田间试验,评估了种植密度和杀虫剂喷洒制度对豇豆病毒病的影响。研究发现,密度为25×75 cm时发病率最低(32.2%),密度为75×75 cm时发病率最高(41.9%)。密度为25×7 5cm时,3种喷药方案的发病率最低,为18.6%;密度为75×75 5cm时,未喷药方案的发病率最高,为66.5%。因此,建议种植密度为25×75厘米,使用三种杀虫喷雾。本研究强调了种植密度和杀虫喷雾制度对豇豆生产中病毒性病害管理的重要性。农民可以利用这些信息来减少疾病的发病率和严重程度,并提高产量。
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引用次数: 0
Plant Regeneration from Cotyledon Explants of Bittergourd as influenced by Adenine Sulphate and D-Biotin 硫酸腺嘌呤和d -生物素对苦瓜子叶外植体植株再生的影响
IF 1.1 4区 农林科学 Q3 AGRONOMY Pub Date : 2023-07-07 DOI: 10.4038/jfa.v16i1.5280
J. A. D. C. Kawshalya, T. Seran
The first experiment was done to select the most suitable explant to establish a culture for shoot regeneration. Four different explants (cotyledon, cotyledon node, leaf and hypocotyl) excised from in vitro grown seedlings were cultured on MS medium containing 1.0 mg l-1 BAP and 0.2 mg l-1 NAA. Cotyledon was the most responsive explant which exhibited quick callus initiation. The second experiment was conducted to determine the effect of cotyledon explants on different MS media containing 1.0 mg l-1 BAP, 0.2 mg l-1 NAA and also various concentrations (0, 20, 40 and 60 mg l-1) of adenine sulphate (AS). The best medium for callus formation was MS medium with 1.0 mg l-1 BAP, 0.2 mg l-1 NAA and 60 mg l-1 AS. Callus derived from the particular medium also showed the best positive response for shoot regeneration after subculturing on MS medium with 2.0 mg l-1 BAP and 0.2 mg l-1 NAA. In the third experiment, D-biotin added into the composition of the culture medium had a beneficial effect on the callogenesis in association with BAP and NAA. Regenerated shoots were multiplied on MS medium with 3.0 mg l-1 BAP. Eventually, in vitro rooting was achieved on MS medium included with 1.0 mg l-1 IBA.
第一次试验选择最适宜的外植体建立芽再生培养。从离体苗中取出4个不同的外植体(子叶、子叶节、叶片和下胚轴),在含1.0 mg l-1 BAP和0.2 mg l-1 NAA的MS培养基上培养。子叶外植体对愈伤组织形成反应最快,愈伤组织形成速度最快。第二项试验研究了子叶外植体在含1.0 mg l-1 BAP、0.2 mg l-1 NAA和不同浓度(0、20、40和60 mg l-1)硫酸腺嘌呤(AS)的MS培养基上的生长效果。愈伤组织形成的最佳培养基为MS + 1.0 mg l-1 BAP + 0.2 mg l-1 NAA + 60 mg l-1 AS的培养基。在含2.0 mg l-1 BAP和0.2 mg l-1 NAA的MS培养基上继代后,愈伤组织再生效果最好。在第三个实验中,在培养基中添加d -生物素,与BAP和NAA共同作用,对骨痂形成有促进作用。再生芽在含3.0 mg l-1 BAP的MS培养基上增殖。最终,在含1.0 mg l-1 IBA的MS培养基上实现离体生根。
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引用次数: 0
Potential of Debittered Pomelo Albedo Flour (Citrus maxima) in Bread: Functional, Nutritional and Phytochemical Characteristics 脱臭柚子反射率粉(Citrus maxima)在面包中的潜力:功能、营养和植物化学特性
IF 1.1 4区 农林科学 Q3 AGRONOMY Pub Date : 2023-07-07 DOI: 10.4038/jfa.v16i1.5279
K. Olatoye, A. I. Lawal, F. B. Ojimi
This study explored the use of pomelo albedo as a composite flour in bread production. The pomelo albedo portion of the whole fruit was debittered through the standard method and obtained debittered pomelo albedo flours (DPAF) which were incorporated into wheat flour at four formulations of 0, 10, 20, and 30% for bread production. The impact of DPAF on functional characteristics of composite flours and physical, chemical and sensory characteristics of breads was investigated. The difference between 100% wheat flour and flour enriched with 30% DPAF regarding water absorption (130.00 - 166.33%), bulk density (0.68 - 0.96 g/ ml) and crude fibre (1.50 - 2.42%) was significant giving higher value in DPAF composite flours, while their specific volume (2.93 - 4.14 cm3/ g) and protein (7.75 - 10.07%) were lower than that of control bread without DPAF. The phytochemical properties of bread varied slightly with incorporation of DPAF. A Sensory evaluation test using a 9-point hedonic scale showed that the appearance, flavor and overall acceptability were within the liking rate for 10% composite bread. The overall results could be useful for guiding the future application of pomelo albedo by-product in the bakery industry.
本研究探讨了用柚子反照率作为复合面粉在面包生产中的应用。通过标准方法对整个果实的柚子反照率部分进行脱脂,得到了以0、10、20和30%的四种配方加入小麦粉中用于面包生产的脱脂柚子反照率粉(DPAF)。研究了DPAF对复合面粉的功能特性和面包的物理、化学和感官特性的影响。100%小麦粉与添加30% DPAF的面粉在吸水率(130.00 ~ 166.33%)、容重(0.68 ~ 0.96 g/ ml)和粗纤维(1.50 ~ 2.42%)方面差异显著,DPAF复合面粉的数值较高,而其比容(2.93 ~ 4.14 cm3/ g)和蛋白质(7.75 ~ 10.07%)均低于不添加DPAF的对照面包。添加DPAF后,面包的植物化学性质略有变化。使用9分享乐量表进行的感官评估测试表明,外观,风味和整体可接受性都在10%复合面包的喜欢率之内。研究结果对今后柚反照率副产品在烘焙工业中的应用具有一定的指导意义。
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引用次数: 0
Development of Nutritious Biscuit by Substitution of Wheat Flour using Composite Flour of Pumpkin (Cucurbita maxima), Corn (Zea mays) and Soybean (Glycine max) and Quality Evaluation 南瓜(Cucurbita maxima)、玉米(Zea mays)、大豆(Glycine max)复合粉替代小麦粉的营养饼干研制及品质评价
IF 1.1 4区 农林科学 Q3 AGRONOMY Pub Date : 2023-07-07 DOI: 10.4038/jfa.v16i1.5284
W. M. D. S. N. Wanigasooriya, P. Arampath, C. Wellala
Nutrients are vital for the growth and development of the human body. Intake of inadequate nutrients substantially affects the growth and mental development of young children. The aim of this research was to formulate and develop a nutritious baby biscuit using composite flour of pumpkin (Cucurbita maxima), soybean (Glycine max) and corn (Zea mays) for children, under 5 years old. Composite flour was prepared by blending wheat flour with pumpkin flour, soybean flour and corn flour with the respective ratios of 100:0:0:0 (T1), 85:5:5:5 (T2), 70:10:10:10 (T3), and 55:15:15:15 (T4). The suitability of the composite flour was evaluated by the functional properties, microbial quality-related parameters, sensory attributes and proximate composition analysis. Functional properties namely water absorption capacity, oil absorption capacity and foam capacity were significantly higher (p <0.05) in composite flour than in wheat flour. The best-preferred baby biscuit was developed using treatment 3 (T3: 70:10:10:10), representing 30% of composite flour. The colour, flavour, texture and overall acceptability of the baby biscuit were significantly higher (p <0.05). The composite flour (T3) possessed 3.96% moisture (wb), 2.66% ash, 14.18% fat, 2.23% fibre, 3.43% protein, 74.75% carbohydrate, 46.00 mg/ g calcium, 3.18 mg /g iron and 427.90 mg/ g potassium. Total plate count (540 CFU) and yeast and mould count (360 CFU) were below the standard microbial limits for biscuits. In conclusion, 30% substitution of wheat flour using composite flour (pumpkin, soybean and corn) was successful in the production of nutritious biscuits for young children.
营养物质对人体的生长发育至关重要。营养摄入不足严重影响幼儿的生长和智力发育。本研究的目的是用南瓜(Cucurbita maxima)、大豆(Glycine max)和玉米(Zea mays)的复合面粉为5岁以下的儿童配制和开发一种营养丰富的婴儿饼干。将小麦粉与南瓜粉、大豆粉、玉米粉分别按100:0:0:0 (T1)、85:5:5:5 (T2)、70:10:10:10 (T3)、55:15:15:15 (T4)的比例混合制备复合面粉。通过功能特性、微生物品质相关参数、感官特性和近似成分分析评价复合面粉的适宜性。复合面粉的吸水能力、吸油能力和泡沫能力显著高于小麦粉(p <0.05)。采用处理3 (T3: 70:10:10:10),复合面粉添加量为30%,优选出最佳的婴儿饼干。婴儿饼干的颜色、风味、质地和总体可接受性显著提高(p <0.05)。复合面粉(T3)水分3.96%,灰分2.66%,脂肪14.18%,纤维2.23%,蛋白质3.43%,碳水化合物74.75%,钙46.00 mg/ g,铁3.18 mg/ g,钾427.90 mg/ g。总菌盘数(540 CFU)和酵母菌数(360 CFU)均低于饼干微生物限量标准。综上所述,用复合面粉(南瓜、大豆和玉米)代替30%的小麦粉可以成功地生产幼儿营养饼干。
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引用次数: 0
Combined effect of carvacrol and high hydrostatic pressure on quality attributes of chicken meat during refrigerated conditions 香芹酚和高静水压力对冷藏条件下鸡肉品质特性的联合影响
4区 农林科学 Q3 AGRONOMY Pub Date : 2023-06-12 DOI: 10.9755/ejfa.2023.3133
Khabat Noori Hussein, Bashdar I. Meena, Hiwa M. Ahmed, Tamás Csurka, Adrienn Varga-Tóth, Karina Hidas, Jónás Gábor, László Friedrich, István Dalmadi, Csaba Németh
The application of hurdle approach using high hydrostatic processing (HHP) with bioactive compounds (BACs) to preserve meat quality is promising due to safety, improved well-being, and easier acceptance by customers compared to the use of synthetic preservatives. This study was designed to investigate the influence of natural phenolic BAC carvacrol (CARV) at 500 and 1000 ppm combined with HHP(300 and 600MPa) on the quality attributes of chicken meat after being vacuum-sealed and kept at 4 ± 0.5 °C for 28 days. The HHP showed a significantly higher pH rate (P<0.05), increased L* and b* value, decreased a* values, and reduction in water holding capacity (WHC) compared to unpressurized control meat with/without CARV. Reduction in thiobarbituric acid reactive substances (TBARS) indexes was perceived in meat supplemented with CARV, and low level of HHP (300 HHP) whereas significantly increased lipid oxidation was witnessed with HHP 600 MPa. At day 28, an increase in aerobic mesophilic counts (AMCs) was observed in all meat samples. However, reductions of about 0.6, 0.8, and 1.1 log in AMCs were seen in meat treated with 600HHP-No CARV, HHP300-CARV 500 ppm, and 600HHP-CARV 1000 ppm, respectively. Furthermore, despite the overlapping aroma pattern between meat containing CARV and control groups, the electronic nose was able to discriminate control from samples subjected to HHP. The current results demonstrate that the addition of CARV improved the conservation effects of HHP with less oxidative deterioration of fresh chicken meat during chilling storage. Keywords: Bioactive compounds; High hydrostatic processing; Chicken meat; Lipid oxidation; Microbiological properties
与使用合成防腐剂相比,使用高流体静力处理(HHP)和生物活性化合物(BACs)来保持肉类质量的跨栏方法的应用具有安全性,改善了健康,更容易被客户接受的优点。本研究旨在研究500和1000 ppm的天然酚类BAC香芹酚(CARV)与300和600MPa的HHP(4±0.5°C)真空密封保存28 d后对鸡肉品质属性的影响。与未加压对照肉相比,加/不加CARV后,HHP的pH值显著升高(P<0.05), L*和b*值升高,a*值降低,持水能力(WHC)降低。在肉中添加CARV后,硫代巴比妥酸活性物质(TBARS)指数降低,HHP水平较低(300 HHP),而HHP为600 MPa时,脂质氧化显著增加。第28天,所有肉类样品的嗜氧中温菌计数(AMCs)均有所增加。然而,在600HHP-No CARV、500ppm HHP300-CARV和1000ppm hhp -CARV处理的肉类中,AMCs分别减少了0.6、0.8和1.1 log。此外,尽管含有CARV的肉和对照组之间的香气模式重叠,但电子鼻能够区分对照组和HHP样品。研究结果表明,添加CARV可以提高HHP在冷藏过程中的保鲜效果,减少新鲜鸡肉的氧化变质。关键词:生物活性化合物;高流体静力处理;鸡肉;脂质氧化;微生物属性
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引用次数: 0
Cytotoxic and anti-metastatic action mediates the anti-proliferative activity of Rhazya stricta Decne inducing apoptotic cell death in human cancer cells: Implication in chemopreventive mechanism 细胞毒性和抗转移作用介导了 Rhazya stricta Decne 诱导人类癌细胞凋亡的抗增殖活性:化学预防机制的含义
IF 1.1 4区 农林科学 Q3 AGRONOMY Pub Date : 2023-06-08 DOI: 10.9755/ejfa.2023.3132
M. Ullah, Faisel M. Abuduhier, Showket H. Bhat, Aamir Ahmad, Mohammad Rehan Ajmal, Syed Khalid Mustafa
Cancer is associated with a high rate of pre-mature mortality worldwide and serves as a significant impediment to extended life expectancy, leading to undesirable long-term effects on the quality of life of the patients. Bioactive chemical products derived from natural sources have an important place in the well-being of the human population since ancient times. Compounds derived from natural sources have dominated the drug discovery programs in the last five decades and comprise a substantial proportion of current-day pharmaceutical agents. Rhazya stricta, an evergreen shrub, it belongs to family Apocynaceae of order Gentianales, and the Rhazya stricta is known to have certain medicinal properties, as the Middle East and South Asian traditional medicine employed this plant as a cure for different diseases. Herein, the hydro-methanolic extract of Rhazya stricta Decne has been studied for its effect on spectrum of cancer cells, including LNCaP, C4-2B, PC-3 prostate cancer cells, MDA-MB-231, MCF-7, SKBR3 breast cancer cells, A-549 lung cancer cells and BxPC-3, MiaPaCa-2 pancreatic cancer. Hydro-methanolic extract of Rhazya stricta Decne in a dose-dependent manner, showed progressive inhibition of cell growth by induction of cell death in the treated human cancer cells. The IC value range for different breast cancer cell lines was 142-178 µg/ml; for prostate cancer cell lines, it was 90-148 µg/ml; for pancreatic cancer cell lines 116-166 µg/ml and for the lung cancer cells, it was reported to be 180 µg/ml. The anti-metastatic potential of extract was indicated by the notable reduction in invasiveness and cell migration. Moreover, the structurally diverse phytochemical rich extract, also downregulates the signaling of NF-kB and the NF-kB downstream target cytokine VEGF, providing an insight into the anticancer action mechanism.Keywords: Cell biology; Cancer chemoprevention; Anticancer drugs; Cell signaling; Natural compounds
在全球范围内,癌症导致的过早死亡率很高,是延长预期寿命的一大障碍,并对患者的生活质量造成长期不良影响。自古以来,从天然资源中提取的生物活性化学产品在人类福祉中占有重要地位。在过去的五十年里,从天然资源中提取的化合物在药物发现项目中占据了主导地位,并在当今的药物制剂中占有相当大的比例。Rhazya stricta 是一种常绿灌木,属于龙胆科龙胆属,众所周知,Rhazya stricta 具有一定的药用价值,中东和南亚的传统医学利用这种植物治疗不同的疾病。在此,我们研究了狭叶龙胆的水甲醇提取物对多种癌细胞的影响,包括 LNCaP、C4-2B、PC-3 前列腺癌细胞,MDA-MB-231、MCF-7、SKBR3 乳腺癌细胞,A-549 肺癌细胞和 BxPC-3、MiaPaCa-2 胰腺癌细胞。Rhazya stricta Decne 的水甲醇提取物以剂量依赖的方式,通过诱导细胞死亡来逐步抑制受处理人类癌细胞的生长。不同乳腺癌细胞株的 IC 值范围为 142-178 微克/毫升;前列腺癌细胞株的 IC 值范围为 90-148 微克/毫升;胰腺癌细胞株的 IC 值范围为 116-166 微克/毫升;肺癌细胞的 IC 值范围为 180 微克/毫升。萃取物的抗转移潜力表现在显著降低侵袭性和细胞迁移。此外,富含多种植物化学物质的提取物还能下调NF-kB和NF-kB下游靶细胞因子VEGF的信号转导,从而揭示其抗癌作用机制:细胞生物学 癌症化学预防 抗癌药物 细胞信号传导 天然化合物
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引用次数: 0
Effect of soy isoflavones on bone health among female university students: a pilot study 大豆异黄酮对女大学生骨骼健康的影响:一项试点研究
IF 1.1 4区 农林科学 Q3 AGRONOMY Pub Date : 2023-06-08 DOI: 10.9755/ejfa.2023.3131
A. Goja, Sara Al-Otaishan, Layla Al-Awami, Nirjes Ali, Zainab Al-Faraj, Eman Al-Kulayf, Zahraa Al-Sukairi, Omar I. Abuzaid, Tunny Sebastian, Rabie Khattab
Low bone mineral density (BMD) has become more common in young women. In postmenopausal women, soy isoflavones have been demonstrated to have a powerful influence on bone health when taken as a food supplement. It is unclear how soy isoflavones affect premenopausal women, though. This study looked at how soy isoflavones affected female university students’ BMD. Thirty female students, aged 18 to 25, were introduced to a Quasi-experimental design, where only 28 could complete the study. Participants received soy isoflavone at 60 mg/day for 28 days. BMD was assessed using dual-energy x-ray absorptiometry (DEXA) before and after supplementation. In addition, twenty-four hours food recall and food frequency questioners (FFQ) were used to evaluate the dietary intake of participants. The prevalence of osteoporosis among participants was 18% osteoporosis, 61% osteopenia and 21% normal. After 4 weeks of intervention, a slight improvement in the BMD was recorded. This improvement was noticed in 33, 59, and 40% of normal,osteopenia, and osteoporosis participants, respectively. Soy isoflavone supplementation can be useful in decreasing the risk of osteopenia among premenopausal women. These promising results ensure the viability of conducting full-scale clinical trials to thoroughly look at the relationship between soy isoflavones and bone health among pre-menopausal women. Keywords: Osteoporosis; Bone mineral density; Soy isoflavone; Saudi Arabia
低骨质密度(BMD)在年轻女性中越来越常见。事实证明,绝经后妇女将大豆异黄酮作为食品补充剂服用时,会对骨骼健康产生强大的影响。但目前还不清楚大豆异黄酮对绝经前妇女有何影响。这项研究考察了大豆异黄酮对女大学生骨密度的影响。30 名年龄在 18-25 岁之间的女大学生接受了一项准实验设计,其中只有 28 人能够完成研究。参与者在 28 天内每天服用 60 毫克的大豆异黄酮。在补充大豆异黄酮之前和之后,采用双能 X 射线吸收测量法(DEXA)对骨密度进行评估。此外,还使用二十四小时食物回忆和食物频率调查表(FFQ)来评估参与者的饮食摄入量。参与者的骨质疏松症患病率为 18%,61%,21% 正常。经过 4 周的干预后,骨密度略有改善。在正常、骨质疏松和骨质疏松症参与者中,分别有 33%、59% 和 40% 的人发现了这种改善。补充大豆异黄酮有助于降低绝经前妇女患骨质疏松症的风险。这些令人鼓舞的结果确保了开展全面临床试验的可行性,以深入研究大豆异黄酮与绝经前妇女骨骼健康之间的关系。关键词:骨质疏松症骨质疏松症;骨矿物质密度;大豆异黄酮;沙特阿拉伯
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引用次数: 0
Evaluation of cytogenotoxic effect of potassium acetate on Allium cepa L. root tips 评估醋酸钾对辣椒根尖的细胞毒性作用
IF 1.1 4区 农林科学 Q3 AGRONOMY Pub Date : 2023-06-02 DOI: 10.9755/ejfa.2023.3129
Nasreen Jalal Hussein
Potassium acetate is a food additive used for preserving and regulating acidity (buffering agent) of processed food. The continuous use of food additives in our various foodstuffs made it necessary to test their possible toxicity. This research aims to test the cytogenotoxic effects of the food additive potassium acetate (E261) by using Allium cepa test system. The parameters tested were: root length, root number, mitotic index, and mitotic abnormalities. The concentrations of potassium acetate were: 0,00% (control), 0,05%, 0,10%, 0.15%, 0,20%, and 0,25%. The onions were incubated in different concentrations of potassium acetate for 72 hours. The roots were then taken and spread on a microscopic slide by squash method. The results showed that the tested food additive had a positive effect on root length, root number, and mitotic index at 0.05%. However, it had mitodepressive effect at higher concentrations and also decreased root length and root number as compared to the control. Total mitotic abnormalities increased with increasing the food additive concentration. The different mitotic abnormalities observed were laggard chromosomes, C-mitosis, multipolar anaphase, sticky metaphase, binucleate, sticky anaphase, and micronuclei. The highest effect of the test material was observed at 0.25% potassium acetate. These results suggest that this food additive is mutagenic and can be harmful if used in high concentrations in food. Keywords: Food additive, Meristematic cells, Mitotic index, Abnormalities
醋酸钾是一种食品添加剂,用于保存和调节加工食品的酸度(缓冲剂)。随着食品添加剂在各种食品中的不断使用,有必要对其可能的毒性进行检测。本研究的目的是通过使用薤白试验系统,测试食品添加剂醋酸钾(E261)的细胞遗传毒性作用。测试参数包括:根长、根数、有丝分裂指数和有丝分裂异常。醋酸钾的浓度分别为0.00%(对照)、0.05%、0.10%、0.15%、0.20% 和 0.25%。洋葱在不同浓度的醋酸钾中培养 72 小时。然后取根部,用压扁法将其平铺在显微载玻片上。结果表明,在 0.05% 的浓度下,受试食品添加剂对根的长度、根数和有丝分裂指数有积极影响。然而,与对照组相比,浓度越高,有丝分裂抑制作用越强,根长和根数也越少。随着食品添加剂浓度的增加,有丝分裂异常总数也在增加。观察到的有丝分裂异常现象包括染色体滞后、C-有丝分裂、多极无丝分裂、粘着无丝分裂、双核、粘着无丝分裂和微核。醋酸钾含量为 0.25%时,试验材料的影响最大。这些结果表明,这种食品添加剂具有致突变性,如果在食品中高浓度使用,会对人体造成危害。关键词:食品添加剂食品添加剂 分生组织细胞 有丝分裂指数 异常现象
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Emirates Journal of Food and Agriculture
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