Publications by authors named "Min Young Um"

This study aimed to investigate the effects of chronic administration of rice bran supplement (RBS) on sleep and to compare these effects with those of the hypnotic drug zolpidem (ZPD). During the three-week treatment period, ZPD initially reduced sleep latency, but that reduction effect of sleep latency gradually diminished over time and significantly decreased non-rapid eye movement sleep (NREMS). In contrast, RBS reduced sleep latency and increased NREMS on the first day, and these effects persisted throughout the treatment period.

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Perilla seed pomace and its constituent phytochemicals have anti-inflammatory, antioxidant, and anti-aging benefits. However, its effects on aging-related cognitive decline are not well-studied. Therefore, the antioxidant and neuroprotective properties of perilla seed pomace extract (PSE) on hydrogen peroxide (HO)-induced neuronal cell death were examined.

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Depression is a significant global health challenge, imposing severe social and economic burdens. Rosa multiflora fructus possesses a range of biological properties; however, its role in reducing stress hormone-induced depression remains unclear. This study examined the antidepressant effects of Rosa multiflora fructus extract (RMFE) on corticosterone (CORT)-induced depressive-like behaviors in mice and explored the underlying molecular mechanisms.

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Background: Citrus peels are rich in flavonoids with potential sedative-hypnotic effects; however, these effects have not yet been fully explored. We previously demonstrated that, in mice, standardized lime peel supplement (SLPS) induced non-rapid eye movement sleep and shortened sleep latency through GABA receptors activation.

Purpose And Study Design: This study aimed to evaluate the effects of SLPS in adults experiencing sleep disturbances.

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Sarcopenia, the age-related decline in muscle mass and function, is a significant contributor to increased frailty and mortality in the elderly. Currently, no FDA-approved treatment exists for sarcopenia. Here, we identified norharmane (NR), a β-carboline alkaloid, as a potential therapeutic agent for mitigating muscle aging.

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Expensive fetal bovine serum (FBS) is a major obstacle to the production of cultivated meat. However, because FBS substitutes do not sufficiently induce cell proliferation, a good alternative is to reduce the amount of FBS and use ingestible additives to promote cell proliferation. In this study, Grifola frondosa extract (GFE) was used to investigate its potential as an additive to promote myogenesis of bovine muscle satellite cells from Hanwoo cattle under low serum conditions (10 % FBS).

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This study investigated the efficacy of a phlorotannin supplement (PS) in ameliorating scopolamine (SCO)-induced memory deficits in mice, focusing on synaptic function and the underlying molecular mechanisms. Male C57BL/6N mice were divided into six groups and treated with vehicle, donepezil (5 mg/kg body weight, (BW)), or PS (100, 250, or 500 mg/kg BW) for 6 weeks. Behavioral tests were conducted, followed by Golgi staining, immunofluorescence, and immunoblotting to assess synaptic protein expression and signaling pathways.

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Depression is emerging as a social and health-related issue worldwide. Rice bran possesses a variety of biological properties; however, its potential efficacy and molecular mechanisms in depression remain unclear. This study investigated the antidepressant effects of rice bran supplement (RBS) in a mouse model of chronic restraint stress (CRS)-induced depression.

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Polyphenols have been well-established to exert sedative-hypnotic effects in psychopharmacology. Lime (Citrus aurantifolia) peel is rich in biologically active polyphenols; however, the effects of lime peel extract on sleep have not yet been demonstrated. A comparison was conducted in mice, between the sleep-promoting effects of a standardized lime peel supplement (SLPS) and a well-known hypnotic drug, zolpidem, and its hypnotic mechanism was investigated using in vivo and in vitro assays.

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Menopausal depression, often associated with hormonal fluctuations such as decreased estrogen levels, imposes significant mental health burdens. Despite the antidepressant biological properties of standardized rice bran supplement (RBS), its impact on menopausal depression and underlying mechanisms remains largely unexplored. In this study, we investigated the antidepressant effects of RBS in a mouse model of estrogen deficiency-induced depression.

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The principles of myogenesis play crucial roles in the production of cultured meat, and identifying protein stimulators associated with myogenesis holds great potential to enhance the efficiency of this process. In this study, we used surface plasmon resonance (SPR)-based screening of a natural product library to discover ligands for Pax7 and MyoD, key regulators of satellite cells (SCs), and performed cell-based assays on Hanwoo SCs (HWSCs) to identify substances that promote cell proliferation and/or differentiation. Through an SPR analysis, we found that six chemicals, including one Pax7+/MyoD- chemical, four Pax7+/MyoD+ chemicals, and one Pax7-/MyoD+ chemical, bound to Pax7 and/or MyoD proteins.

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exhibits various biological activities; however, their sleep-promoting effects have not been previously reported. In this study, we evaluated the hypnotic effects and sleep-wake profiles of root (KS-126) using a pentobarbital-induced sleep-acceleration test and polysomnographic recordings. Additionally, we investigated the molecular mechanism of KS-126 through patch-clamp electrophysiology.

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Scope: Depression is a severe mental condition, common among menopausal women. γ-Oryzanol (ORY) has various biological properties; however, the effect of ORY on menopausal depression and its underlying mechanisms have not been investigated.

Methods And Results: ORY is orally administered to ovariectomized (OVX) mice for 20 weeks.

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, a brown seaweed, is known for its various health benefits; however, there are no reports on its effects on depression. This study aimed to investigate the antidepressant effects of ethanol extract (SHE) in mice injected with corticosterone (CORT) and to elucidate the underlying molecular mechanisms. Behavioral tests were conducted, and corticotropin-releasing hormone (CRH), adrenocorticotropic hormone (ACTH), and CORT levels were measured.

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We investigated the effects of 6-gingerol on adiposity and obesity-induced inflammation by focusing on the regulation of adipogenesis and adipokines in white adipose tissue (WAT) of diet-induced obese mice. C57BL/6 mice were fed a high-fat diet (HFD) containing 0.05% 6-gingerol for 8 weeks.

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Wakefulness is defined as a state in which individuals can react to a change in situations. The number of people staying awake and compensating for lack of sleep has increased in recent years. Caffeine, a representative stimulant, is the most extensively consumed compound globally and is mainly consumed through coffee.

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Insomnia is a common sleep disorder. Natural sleep aids are gaining worldwide popularity as alternatives to prescription drugs for improving sleep. Recently, numerous studies have investigated the sedative-hypnotic effects of the polyphenols of terrestrial plants.

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Article Synopsis
  • The study investigates how curcuminoids, found in turmeric, influence sleep patterns by targeting histamine H1 receptors in the body.
  • The research suggests that these compounds may enhance sleep quality, potentially offering a natural remedy for sleep-related issues.
  • The findings contribute to the understanding of curcuminoids' role in sleep regulation and provide insights for future studies on natural sleep aids.
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Article Synopsis
  • The study evaluated the sleep-inducing effects of green kiwifruit peel ethanol extract (GKPEE) on mice, showing that it increased non-rapid eye movement sleep (NREMS) and reduced sleep latency compared to traditional sedative diazepam (DZP).
  • Acute doses of GKPEE (250, 500, and 1000 mg/kg) improved sleep in a dose-dependent manner, with the highest dose showing lasting effects up to two hours with no change in delta brain activity.
  • Sub-chronic administration (15 days) of GKPEE maintained its sleep-promoting effects without leading to tolerance, suggesting its potential as a natural treatment for sleep disorders and highlighting its use in reducing food industry waste
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Turmeric () had been considered as a universal panacea in functional foods and traditional medicines. In recent, the sedative-hypnotic effect of turmeric extract (TE) was reported. However, sleep-promoting compounds in TE have been not yet demonstrated.

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In age-related macular degeneration, N-retinylidene-N-retinylethanolamine (A2E) accumulates in retinal pigment epithelium (RPE) cells and generates oxidative stress, which further induces cell death. Polyphenols are well known for their antioxidant and beneficial effects on vision. Chrysanthemum boreale Makino (CB) flowers, which contain flavonoids, have antioxidant activity.

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Menopause is a risk factor for depression. Although 1,3-dicaffeoylquinic acid (1,3-diCQA), a phenolic compound in () root, has various health benefits, its effects on menopausal depression remain to be determined. Therefore, this study investigates the antidepressant-like effects of 1,3-diCQA from an root extract (AE) and the associated molecular mechanisms.

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Type 2 diabetes mellitus is characterized by insulin resistance and pancreatic beta (β)-cell dysfunction. Accumulating evidence suggests that mitochondrial dysfunction may cause insulin resistance in peripheral tissues. As commercial hypoglycemic drugs have side effects, it is necessary to develop safe and effective natural compound-based hypoglycemic treatments.

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Article Synopsis
  • This study explores the sleep-promoting effects of turmeric, which haven't been previously reported, aiming to understand how it impacts sleep and its underlying molecular mechanisms.* -
  • Using a variety of tests on mice, the study finds that turmeric extract (TE) significantly decreases the time it takes to fall asleep and enhances non-rapid eye movement sleep (NREMS), similar to the effects of diazepam.* -
  • The research suggests that TE promotes sleep by blocking histamine H receptors, indicating its potential as a treatment for insomnia.*
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