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The difference of metabolic profile between male and female zebrafish
Yoon, Dahye,Choi, Jin,Choi, Hyeonsoo,Kim, Suhkmann Korean Magnetic Resonance Society 2016 Journal of the Korean Magnetic Resonance Society Vol.20 No.1
Various experiments using zebrafish have been highlighted recently in the scientific community. Because it is possible to conduct practical experiment from various neurological research to area of genetic study or toxicity experiment. However, gender difference effects are nearly not considered. If the gender differences of zebrafish are considered it is possible to obtain more accurate data. In this study, zebrafish which have different genders were compared each other with NMR-based metabolomics. The extracts of male and female zebrafish were measured by 600 MHz NMR spectrometer. Statistical analysis and target profiling were conducted. As a result, muscle related metabolites were observed in male zebrafish and nerve related metabolites were observed in female zebrafish.
HR-MAS NMR Technique for Metabolic Profiling of Powdery Ginseng
Yoon, Dahye,Jo, Ick-Hyun,Kim, Suhkmann Korean Magnetic Resonance Society 2016 Journal of the Korean Magnetic Resonance Society Vol.20 No.3
Ginseng is used as a medicinal ingredient. The quality control of species, age, origin and manufacturing process is important. The metabolome of ginseng about quality was studied in many reports. Almost studies carried out the extract of ginseng, however, the reproducibility cannot be obtained using extracted sample. In this study, powdery ginseng samples were analyzed using high resolution-magic angle spinning nuclear magnetic resonance (HR-MAS NMR)-based metabolomics except extraction step. Sample was measured three times using 600 MHz NMR spectrometer equipped with nano probe. Reproducibility can be enhanced using this method and the metabolic profiles of ginseng were identified and quantified.
Investigation of Germicide and Growth Enhancer Effects on Bean Sprout using NMR-based Metabolomics
Yoon, Dahye,Ma, Seohee,Choi, Hyeonsoo,Noh, Hyeonkyung,Ok, Youngjun,Kim, Suhkmann Korean Magnetic Resonance Society 2016 Journal of the Korean Magnetic Resonance Society Vol.20 No.4
Bean sprouts are often cultivated in the circumstances prevailing in the improper using of germicide and growth enhancer. The influence of ingestion those bean sprouts are unknown. The components of the bean sprouts are needed to evaluate for food safety. The extracts of the control, 0.5 g/L germicide, 1 g/L germicide, 12.5 mL/L growth enhancer and 25 mL/L growth enhancer were used to compare the components in the experiment. Nuclear Magnetic Resonance spectroscopy (NMR) was used to analyze the extracts. Statistical analysis of metabolomics showed significant changes between the control and head and the stem of the bean sprouts. Significant changes in metabolites were identified with the bean sprouts cultivated with germicide and growth enhancer by applying qualitative and quantitative analysis. Similar changes in the area of the bean sprouts were observed after treated to germicide and growth enhancer. Although treating germicide and growth enhancer showed no particular harmful metabolites changes to human, it made significant changes in the morphological and the metabolites of the bean sprouts. These changes indicate that the germicide and growth enhancer has substantially potential to influence the growth of the bean sprouts.
Alleviating Effects of Scrophularia buergeriana on Scopolamine-Induced Amnesia in Mice
Dahye Yoon,Seon Min Oh,Hyeon Seon Na,Yunji Lee,Young-Seob Lee,Dae Young Lee 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10
Cognitive decline developing into dementia is becoming a social problem. Amnesia is a symptom of memory loss regarding facts, information, and experiences; it is often called forgetfulness. There is no drug that can cure it, and though drugs that alleviate the symptoms of dementia have been developed, they also have side effects. In this study, we confirmed the effect of an extract of Scrophularia buergeriana on scopolamine-induced cognitive impairment through mouse behavioral experiments, and we observed metabolic changes in the cortex and hippocampus using NMR spectroscopy. Mitigating effects of S. buergeriana on cognitive impairment caused by scopolamine were observed in passive avoidance and Morris water maze tests. A metabolic analysis revealed biomarkers related to the alleviating effect of cognitive impairment. Niacinamide, tyrosine, uridine, and valine in the cortex and GABA, choline, creatine, formate, fumarate, hypoxanthine, leucine, myo-inositol, pyroglutamate, and taurine in the hippocampus were identified as biomarker candidates for recovering cognitive impairment.
Anti-adipogenic effect of polyphenol enriched fruit peel extracts in 3T3-L1 adipocytes
Dahye Yoon,Hyejin Jeon,Hyeon Gyu Lee,Hyunsook Kim 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10
The fruit peels contain diverse phenolic compounds related to decreasing lipogenesis and inhibiting adipocyte differentiation and growth. This study aimed to explore anti-adipogenic effects of fruit peel extracts derived from watermelon (Citrullus lanatus), Korean melon (Cucumis melo var. makuwa), and namjinhae (C. hybrid cv. Natsumi). Fruit peel extracts [watermelon (WEE, WAE), Korean melon (KEE, KAE), and namjinhae (NEE, NAE)] were prepared with extraction solvent based 80% ethanol (EE). We determined the effects of the fruit peel extracts on 3T3-L1 adipocyte differentiation which was evaluated using Oil Red O staining. Among them, NEE showed remarkably strongest inhibitory activity on the lipid accumulation in 3T3-L1 adipocytes. The inhibitory activities of all fruit peel extracts were greater than the positive control, Garcinia Cambogia. The result showed that the fruit peel extract effectively suppressed lipid accumulation in 3T3-L1 adipocytes. The fruit peel extractions can be utilized as potential functional ingredients against obesity.
Applications of NMR spectroscopy based metabolomics: a review
Yoon, Dahye,Lee, Minji,Kim, Siwon,Kim, Suhkmann Korean Magnetic Resonance Society 2013 Journal of the Korean Magnetic Resonance Society Vol.17 No.1
Metabolomics is the study which detects the changes of metabolites level. Metabolomics is a terminal view of the biological system. The end products of the metabolism, metabolites, reflect the responses to external environment. Therefore metabolomics gives the additional information about understanding the metabolic pathways. These metabolites can be used as biomarkers that indicate the disease or external stresses such as exposure to toxicant. Many kinds of biological samples are used in metabolomics, for example, cell, tissue, and bio fluids. NMR spectroscopy is one of the tools of metabolomics. NMR data are analyzed by multivariate statistical analysis and target profiling technique. Recently, NMR-based metabolomics is a growing field in various studies such as disease diagnosis, forensic science, and toxicity assessment.