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Hypolipidemic and anti-atherosclerogenic effects of aqueous extract of ipomoea batatas leaves in diet-induced hypercholesterolemic rats

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Journal of Integrative Medicine 2021年第3期19卷 243-250页

作者： Fidele Ntchapda Fernand C.Tchatchouang David Miaffo Barthelemy Maidadi Lorella Vecchio Rodrigue E.Talla Christian Bonabe Paul F.Seke Etet Theophile Dimo Department of Biological Sciences University of NgaoundereNgaoundereAdamawa RegionCameroon Department of Life and Earth Sciences Higher Teachers’Training CollegeUniversity of MarouaExtreme North RegionCameroon Center for Sustainable Health and Development GarouaNorth RegionCameroon Department of Physiological Sciences and Biochemistry Faculty of Medicine and Biomedical SciencesUniversity of NgaoundereGarouaNorth RegionCameroon Department of Animal Biology and Physiology University of Yaoundé1YaoundeCentre RegionCameroon

Objective:ipomoea batatas(L.)*** a food plant used in African traditional medicine to treat cardiovascular diseases and related *** assessed the hypolipidemic and anti-atherosclerogenic properties of the aqueous extract of *** leaves in a rat model of diet-induced ***:Hypercholesterolemia was induced in male Wistar rats by exclusive feeding with a cholesterolenriched(1%)standard diet for four ***,rats were treated once daily(per os)with *** extract at doses of 400,500 and 600 mg/kg or with atorvastatin(2 mg/kg),for four *** treatment,animals were observed for another four weeks and then *** were excised and processed for histopathological studies,and blood glucose level and lipid profile were ***:Hypercholesterolemic animals experienced a 21.5%faster increase in body weight,significant increases in blood glucose and blood lipids(148.94%triglycerides,196.97%high-density lipoprotein cholesterol,773.04%low-density lipoprotein cholesterol,148.93%very low-density lipoprotein cholesterol and 210.42%total cholesterol),and increases in aorta thickness and atherosclerotic plaque sizes compared to rats fed standard *** of hypercholesterolemic rats with the extract mitigated these alterations and restored blood glucose and blood lipid levels to normocholesterolemic ***:Our findings suggest that *** leaves have hypolipidemic and anti-atherosclerogenic properties and justify their use in traditional medicine.

关键词： Hypercholesterolemic rat ipomoea batatas Atherosclerotic plaques High-density lipoprotein cholesterol Low-density lipoprotein cholesterol Very low-density lipoprotein cholesterol

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Cloning and Characterization of Eukaryotic Translation Initiation Factor 4E (eIF4E) Gene Family in ipomoea batatas L. (Lam) for Understanding Hexaploid Sweetpotato-Virus Interactions

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American Journal of Molecular Biology 2022年第4期12卷 203-244页

作者： Adrianne P. A. Brown Marceline Egnin Foaziatu Bukari Osagie Idehen Inocent Ritte Desmond Mortley Gregory Bernard Deloris Alexander Conrad Bonsi Plant Biotech and Genomics Research Lab Department of Agriculture and Environmental Sciences College of Agriculture Environment and Nutrition Sciences (CAES) Tuskegee University Tuskegee USA Integrative Biosciences PhD Program Tuskegee University Tuskegee USA Heliae Development LLC Gilbert USA

Characterization of genes related to sweetpotato viral disease resistance is critical for understanding plant-pathogen interactions, especially with feathery mottle virus infection. For example, genes encoding eukaryotic translation initiation factor (eIF)4E, its isoforms, eIF(iso)4E, and the cap-binding protein (CBP) in plants, have been implicated in viral infections aside from their importance in protein synthesis. Full-length cDNA encoding these putative eIF targets from susceptible/resistant and unknown hexaploid sweetpotato (ipomoea batatas L. Lam) were amplified based on primers designed from the diploid wild-type relative ipomoea trifida consensus sequences, and designated IbeIF4E, IbeIF(iso)4E and IbCBP. Comparative analyses following direct-sequencing of PCR-amplified cDNAs versus the cloned cDNA sequences identified multiple homeoalleles: one to four IbeIF4E, two to three IbeIF(iso)4E, and two IbCBP within all cultivars tested. Open reading frames were in the length of 696 bp IbeIF4E, 606 bp IbeIF(iso)4E, and 675 bp IbCBP. The encoded single polypeptide lengths were 232, 202, and 225 amino acids for IbeIF4E, IbeIF(iso)4E, and IbCBP, with a calculated protein molecular mass of 26 kDa, 22.8 kDa, and 25.8 kDa, while their theoretical isoelectric points were 5.1, 5.57, and 6.6, respectively. Although the homeoalleles had similar sequence lengths, single nucleotide polymorphisms and multi-allelic variations were detected within the coding sequences. The multi-sequence alignment performed revealed a 66.9% - 96.7% sequence similarity between the predicted amino acid sequences obtained from the homeoalleles and closely related species. Furthermore, phylogenetic analysis revealed ancestral relationships between the eIF4E homeoalleles and other species. The outcome herein on the eIF4E superfamily and its correlation in sequence variations suggest opportunities to decipher the role of eIF4E in hexaploid sweetpotato feathery mottle virus infection.

关键词： ipomoea batatas Eukaryotic Translation Initiation Factors eIF4E CBP eIF(iso)4E Sweetpotato Viral Diseases

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Correlation of phytochemical content with antioxidant potential of various sweet potato (ipomoea batatas) in West Java, Indonesia

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Asian Pacific Journal of Tropical Biomedicine 2018年第1期8卷 25-30页

作者： Irda Fidrianny Hendy Suhendy Muhamad Insanu Department of Pharmaceutical Biology School of Pharmacy-Bandung Institute of Technology

Objective: To determine antioxidant activity and phytochemical content from various tubers extracts of sweet potato(ipomoea batatas) and to explore the correlation of phytochemical content with their antioxidant activities. Methods: Antioxidant activities were tested using DPPH and FRAP assays. Total phenolic was calculated by Folin-Ciocalteu reagent, flavonoid content by Chang's method and correlation with their antioxidant activities were analyzed by Pearson's method. Results: PO2 showed highest antioxidant activity, which had the lowest IC50 DPPH(10.54 μg/m L) and the lowest EC50 FRAP(11.14 μg/m L). PO2 showed the highest total phenolic(11.91 g GAE/100 g) and total flavonoid content(17.83 g QE/100 g). There were significantly negative correlation between total phenolic content and flavonoid content in sample PO with their IC50 DPPH and EC50 FRAP. IC50 DPPH of sample PP and PO showed significantly positive correlation with their EC50 FRAP. Conclusions: Result of DPPH method shows that all different ethyl acetate and ethanolic tubers extracts of four varieties of sweet potato are classified as strong and very strong antioxidant. Result of DPPH and FRAP methods indicates that phenolic and flavonoid compounds in sample PO contributes together to antioxidant activities. Antioxidant activities of sample PP and PO by DPPH method are linear to FRAP method.

关键词： Antioxidant DPPH FRAP ipomoea batatas Tubers Varieties

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Identification of incompatible groups in sweet potato( ipomoea batatas (L.) Lam.) with RAPD markers

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西南师范大学学报(自然科学版) 1999年第5期24卷 581-585页

作者： Sun\ Min School of Life Sciense,Southwest China Normal University,Chongqing 400715 西南师范大学重庆

RAPD (Random Amplified Polymorphic DNA) analysis was applied to sweet potato ( ipomoea batatats (L.) Lam.). In order to assess the degree of polymorphism with the incompatible groups and to investigate if this approach was suitable for identifying incompatible groups, sixteen sweet potato cultivars and one related wild species? 獻.trifida , including 7 incompatible groups, were evaluated by using random 10-mer primers. Wide variations in banding profiles among cultivars were observed and cluster analysis was used to generate a dendrogram showing the relationships among incompatible groups of sweet potato.

关键词： Incompatible group RAPD marker ipomoea batatas

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甘薯ipomoea batatas(L.) Lam.的小孢子发生和雄配子体的发育

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西南师范学院学报(自然科学版) 1984年第3期 27-34页

作者：龔联遂李坤培胡文华张启堂西南师范学院生物系

对甘薯I. batatas的小孢子发生和堆配子体的发育进行了研究.初生壁细胞和与初生造孢细胞相邻的薄壁细胞共同参与了花药壁层的形成.变形绒毡层的细胞在成熟时是双核的.否定了过去长期认为甘薯属ipomoea的药室内壁在成熟时壁细胞不如厚的... 详细信息

对甘薯I. batatas的小孢子发生和堆配子体的发育进行了研究.初生壁细胞和与初生造孢细胞相邻的薄壁细胞共同参与了花药壁层的形成.变形绒毡层的细胞在成熟时是双核的.否定了过去长期认为甘薯属ipomoea的药室内壁在成熟时壁细胞不如厚的结论,肯定指出甘薯I. batatas的药室内壁细胞在花粉粒成熟后有明显的栓质性加厚.小孢子母细胞的减数分裂为同时型.成熟花粉粒是3—细胞的,表面具多数乳头状突起,萌发孔的分类(NPC)为764.低温影响了小孢子母细胞的减数分裂面产生了大量的不正常的小孢子。

关键词：甘薯属花粉粒细胞 Lam ipomoea batatas 小孢子发生雄配子体

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不同生长调节剂对甘薯[ipomoea batatas (L.)Lam.]块根愈伤组织的形成和氨基酸成分的影响

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南京大学学报(自然科学版) 1982年第3期 747-753页

作者：吕芝香王曼丝沈恒冠

在甘薯块根愈伤组织的形成上,培养基中含有2.4—D(0.5毫克—2毫克/升)和NAA(3毫克/升)效果良好,2.4—D浓度高达10毫克/升时,显著抑制愈伤组织的形成。IAA(3毫克/升)仅形成少量的愈伤组织。块根组织和愈伤组织中,测得游离氨基酸17种,块... 详细信息

在甘薯块根愈伤组织的形成上,培养基中含有2.4—D(0.5毫克—2毫克/升)和NAA(3毫克/升)效果良好,2.4—D浓度高达10毫克/升时,显著抑制愈伤组织的形成。IAA(3毫克/升)仅形成少量的愈伤组织。块根组织和愈伤组织中,测得游离氨基酸17种,块根中不含苏氨酸,以NAA形成的愈伤组织中不含苏氨酸和蛋氨酸,但在以2.4—D形成的愈伤组织中出现。块根组织的游离氨基酸含量多于愈伤组织。块根组织和以不同生长调节剂形成的愈伤组织中蛋白质氨基酸种类相同。甘薯块根愈伤组织中可溶性糖含量多于块根组织,淀粉含量则相反。低浓度2.4—D形成的愈伤组织中可溶性糖含量多于高浓度形成的愈伤组织,淀粉则相反。

关键词：愈伤组织 NAA 创伤组织 ipomoea batatas Lam 块根生长调节剂氨基酸氨基羧酸

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甘薯(ipomoea batatas)原生质体的分离、培养与愈伤组织的形成

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Journal of Integrative Plant Biology 1979年第4期 334-338+397页

作者：吴耀武马彩萍中国科学院西北植物研究所

甘薯茎组织培养的愈伤组织置于含有纤维素酶EA3-867(2.0％)、CaCl2·2H2O(20mM)和培养基A的全部无机成分的0.8M甘露醇溶液中,在25±1℃的条件下,经5小时酶解后,获得了大量活的原生质体。原生质体放在含有2,4-D(0.1毫克/升)和动力精(0.1... 详细信息

甘薯茎组织培养的愈伤组织置于含有纤维素酶EA3-867(2.0％)、CaCl2·2H2O(20mM)和培养基A的全部无机成分的0.8M甘露醇溶液中,在25±1℃的条件下,经5小时酶解后,获得了大量活的原生质体。原生质体放在含有2,4-D(0.1毫克/升)和动力精(0.1毫克/升),或者NAA(0.3毫克/升)和动力精(0.1毫克/升)的培养基E的培养皿中制成的琼脂固体平板上,再置于有日光灯照明的27℃恒温培养室进行了培养。7天后发现原生质体再生了新的细胞壁。12天后发生了第一次细胞分裂。随后细胞进行了持续分裂,40天后形成了大小约0.2—0.3毫米的白色小愈伤组织。这些小愈伤组织转移到无甘露醇的培养基中后,它们迅速得到发育,形成了大的愈伤组织。

关键词：愈伤组织茎组织琼脂图版创伤组织 ipomoea batatas 甘薯原生质体

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浙江省主要农作物寄生线虫种类鉴定2.寄生甘薯(ipomoea batatas)的5个种

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浙江大学学报(农业与生命科学版) 1985年第2期 105-109页

作者：还进许美琴浙江农业大学植物保护系

浙江省寄生甘薯(ipomoea batatas)块根及根围土壤的植物线虫有钩状滑刃线虫(Aphelenchoides hamatus);河谷根腐线虫(Pratylenchus convallariae);普通根腐线虫(***);伤痕根腐线虫(***);玉米根腐线虫(***)5个种。上述线虫均为浙江首次报... 详细信息

浙江省寄生甘薯(ipomoea batatas)块根及根围土壤的植物线虫有钩状滑刃线虫(Aphelenchoides hamatus);河谷根腐线虫(Pratylenchus convallariae);普通根腐线虫(***);伤痕根腐线虫(***);玉米根腐线虫(***)5个种。上述线虫均为浙江首次报道,虫体根据de Man公式作了测量,同时对线虫的主要特征及某些生物学亦作了记述。

关键词：根腐线虫食道球寄生线虫 ipomoea batatas 种类鉴定子宫囊甘薯主要农作物浙江省

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Effect of cinnamaldehyde on Rhizopus stolonifer and on the conservation of sweet potato

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Food Quality and Safety 2024年第1期8卷 212-225页

作者：陈晨薛智超 Penta Pristijono John B.Golding 陈刚李永新杨虎清 College of Food and Health Zhejiang A&F UniversityHangzhouChina Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine Zhejiang A&F UniversityHangzhouChina School of Environmental and Life Sciences University of NewcastleOurimbahNSWAustralia NSW Department of Primary Industries OurimbahNSWAustralia

Objectives:Rhizopus stolonifer,which causes soft rot of sweet potato,has resulted in substantial loss of economy *** and Methods:The antifungal effect and mechanism of cinnamaldehyde(CIN)against *** were explored by biochemical analysis and RNA-sequencing in this research,and the edible quality of CIN-treated sweet potato was ***:The results showed that CIN inhibited the growth of *** and reduced the incidence of soft rot in sweet potato at a minimum inhibitory concentration of 1000μL/*** damage of the cell walls of *** by CIN was associated with the upregulation of *** leakage and malondialdehyde content increased following CIN-treatment,which was correlated with increased reactive oxygen species levels and decreased catalase *** of ERG genes and oxidative stress-related genes following CIN treatment was associated with impaired cell membrane *** mitochondrial structure of *** was damaged by CIN treatment resulting in decreased respiration rates and ATP production,which was correlated with lower expression levels of IDH1,COX4,and ***:Our research suggests that the inhibition of CIN on *** was related to the disruption of its normal gene expression network,and CIN maintained the nutritional and edible quality of sweet *** study provides valuable insights into the antifungal mechanism of CIN on *** and the maintenance of root quality,which contributes to the effcient use of CIN for controlling soft rot in sweet potato.

关键词： ipomoea batatas soft rot cinnamaldehyde antifungal mechanism transcriptome

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Comparison of microwave and conventional heating on physicochemical properties and phenolic profiles of purple sweetpotato and wheat flours

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Food Bioscience 2022年第2期46卷 923-933页

作者： Rongbin Cui Michelle Ji Yeon Yoo Fan Zhu School of Chemical Sciences University of AucklandPrivate Bag 92019Auckland 1142New Zealand School of Science Faculty of Health and Environment SciencesAuckland University of TechnologyAucklandNew Zealand

The hydrothermal treatment assisted with microwaves on physicochemical properties and phenolic profiles of purple sweetpotato flour and wheat flour was studied and compared with those of conventional heat *** treatments significantly decreased the enthalpy change,pasting viscosity and gelling capacity of flours,while increasing particle size,gelatinization temperatures and content of resistant *** induced more severe damages on the starch granule morphology and crystallinity than conventional heat treatment,which could be attributed to the intensive friction and collision produced by electromagnetic *** total concentrations of hydroxycinnamic acid derivatives and anthocyanins in purple sweetpotato flour extracted using microwaves at 100℃ were 36%and 68%higher than those in the samples after conventional heat treatment at 100℃,*** waves caused a higher extent of cell damage due to sudden temperature rise during microwave ***,microwave treatment has potential to produce novel functionalities and nutritional values of flours and can be applied as an effective approach for other starch-based food products.

关键词： ipomoea batatas Microwave heating Conventional heating Dielectric property Phenolics Resistant starch Cereal processing Starch gelatinization Domestic cooking

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