• Title/Summary/Keyword: Anti-obesity agents

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Recent Advances in Anti-Obesity Agents (비만 약물 치료의 최신 지견)

  • Kim, Min Kyung;Kim, Chul Sik
    • The Korean Journal of Medicine
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    • v.93 no.6
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    • pp.501-508
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    • 2018
  • Obesity is a chronic disorder that is a significant risk factor for diabetes, cardiovascular diseases, malignancy, and other chronic diseases. Lifestyle modifications form the basis of most treatments for obesity, but it has become clear that such modifications alone are not enough for many obese patients. When a behavioral approach is insufficient, pharmacological treatment may be recommended. In recent years, the US Food and Drug Administration (FDA) has withdrawn several therapeutic options for obesity due to their side effects, but has approved four novel anti-obesity agents. Until recently, orlistat was the only drug approved for the management of long-term obesity, but the US FDA approved the novel anti-obesity drugs lorcaserin and phentermine/topiramate in 2012, and naltrexone/bupropion and liraglutide in 2014. The present review discusses the different pharmacotherapeutic options for the treatment of obesity.

Anti-Obesity Drugs: A Current Research Insight

  • Son Eun-hwa;In San-Whan;Kim Byung-Oh;Pyo Suhkneung
    • Biomedical Science Letters
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    • v.11 no.2
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    • pp.89-101
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    • 2005
  • Obesity is increasing worldwide and has become a major health burden in Western societies affecting every third American and every fifth European. Obesity makes a major contribution to morbidity and mortality, predisposing individuals to cardiovascular disease and diabetes. Many new substances are currently being investigated for their usefulness in the pharmacotherapy of obesity. Most anti-obesity drugs can be divided into four groups: those that reduce food intake; those that alter metabolism; those that increase thermogenesis; and those that regulate hormone involved in feeding behavior. In this article we review these and other agents available in various countries for the treatment of obesity. Perhaps more importantly, we have focussed on areas of potential productivity in the future. Over the last 5 or so years, this impetus in obesity research has provided us with exciting new drugs targets involved in the regulation of feeding behavior and cellular mechanism involved in energy expenditure. Recent development in the quest for control of human obesity include the discovery of hormones, neuropeptides, receptors and transcription factors involved in feeding behavior, metabolic rate and adipocyte development. For developing new, perhaps even more specific pharmacological agents, further research is needed to understand the individual different genetic and physiological basis of obesity. It remains the hope of research scientists that in the not too distant future we shall see a new class of anti-obesity drugs arising logically from the molecular biology revolutions.

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Analysis of the Obesity-Related Research for Each Constituent Herb of Euiiin-tang (의이인탕 구성약물의 비만관련 연구 분석)

  • Song, Yun-Kyung;Cha, Yun-Yeop;Ko, Seong-Gyu
    • Journal of Korean Medicine for Obesity Research
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    • v.14 no.2
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    • pp.72-79
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    • 2014
  • The purpose of this study is analyzed of exploratory research potential as anti-obesity agents of Euiiin-tang. Four Korean databases and 2 Korean Journals (Riss4U, KISS, OASIS, DBPIA, and Journal of Korean Rehabilitation Medicine, Journal of Korean Medicine of Obesity Research) were searched using search word 'individual herbs' and 'obesity', 'weight loss', 'fat', 'hypertension', 'hyperlipidemia', 'diabetes'. Clinical and Experimental Research published in the journal were analyzed, review research, studies of pharmacopunctures and studies of mixed herbal medicine were excluded. We collected 23 studies. Seven studies of Coicis Semen, 10 stdies of Ephedra Herba, 2 study of Angelica gigas Nakai, 3 studies Atractylodis Rhizoma Alba, 1 studies of Glycyrrhiza inflata Batal. Most studies were experiment researches which were composed of in vivo or in vitro, and clinical trial was 5 studies of Ephedra Herba. Main constituent herb, Coicis Semen, Ephedra Herba were thought to represent an anti-obesity effect. Through the result, we can assume to be likely effect of Euiiin-tang as obesity medicine.

Low-Dose Off-Label Use of Phentermine/Topiramate in the Individual with Morbid Obesity and Postoperative Hypothyroidism (수술 후 갑상선기능저하가 동반된 고도비만환자의 펜터민염산염/토피라메이트의 저용량 오프라벨 사용)

  • Park, Jung Ha
    • Archives of Obesity and Metabolism
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    • v.1 no.1
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    • pp.43-45
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    • 2022
  • Intensive lifestyle modifications and anti-obesity medications are essential for obesity treatment. Antiobesity medications should be selected according to the patient's comorbidities, symptoms, and preferences. This case report describes the treatment of a morbidly obese patient with a history of depression, who complained of tingling and numbness after total thyroidectomy for papillary thyroid cancer. Very low-dose controlled-release phentermine/topiramate was prescribed and intensive lifestyle modifications were encouraged. As a result, the patient effectively lost weight and reached a near-normal weight without adverse drug effects. This implies that even an off-label anti-obesity medication low dose may be better for some patients, and the most important factor in obesity treatment is patient-tailored treatment.

Oleaginous Yeast Rhodosporidium toruloides as a Tool for Rapid Evaluation of Anti-Obesity Candidates: Inhibitory Effect of Persimmon Leaf Fermentate on Lipid Accumulation

  • Lee, Nam Keun
    • Journal of Microbiology and Biotechnology
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    • v.27 no.10
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    • pp.1773-1777
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    • 2017
  • The aim of this study was to examine the efficiency of Rhodosporidium toruloides as a new tool to evaluate the triglyceride (TG) reduction effects of anti-obesity candidate materials. Unfermented and fermented persimmon leaf hot water extracts (UFPLE and FPLE) were used as anti-obesity agents. The content of TG in R. toruloides treated with FPLE was less than those with UFPLE by about 11% (p < 0.05) relative to the control (R. toruloides incubated in YPD medium without the agents). Fat reduction in 3T3-L1 cells achieved by FPLE was about 13% higher than that achieved by UFPLE.

Morbidly Obese Patients Treated Obesity and Metabolic Diseases Using Naltrexone/Bupropion Extended Release and Other Drugs of Various Mechanisms (날트렉손/부프로피온 복합제 및 여러 기전의 약물을 이용하여 비만과 동반 대사질환을 치료한 고도비만환자)

  • Cho, Soo Hyun
    • Archives of Obesity and Metabolism
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    • v.1 no.2
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    • pp.83-88
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    • 2022
  • Obesity increases the risk of developing metabolic diseases such as hypertension, type 2 diabetes, hyperlipidemia, and cardiovascular diseases, as well as some cancers. To prevent the occurrence of these diseases and death, it is essential to manage obesity. Though there are several treatments for obesity, lifestyle interventions, such as diet and exercise, and drug therapy are most widely used in clinical practice. Among the anti-obesity drugs available, the weight loss effect of naltrexone/bupropion has been well-proven. We present a case study in which naltrexone/bupropion, a glucagon-like peptide-1 agonist, and a sodium-glucose transporter 2 inhibitor showed significant weight loss and improved metabolic parameters. Additionally, the management of type 2 diabetes and hypertension, which are common diseases in patients with obesity, was also included.

Simple Fabrication of Adipocyte Cell Chip Using Micropatterning (미세접촉인쇄법을 이용한 지방세포 칩 제작)

  • Kim, Gi Yong;Jeong, Heon-Ho;Lee, Chang-Soo;Roh, Changhyun
    • Korean Chemical Engineering Research
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    • v.54 no.2
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    • pp.223-228
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    • 2016
  • In this study, we described a simple and facile method to generate uniform microwells poly(dimethyl siloxane) (PDMS) microstamps through micro-molding for efficient, rapid and reliable cell patterning of adipocyte differentiation. In contrast to the conventional methods, the microstamp technologies are low expensive, non-toxic, and using a small amount of solution. Recently, Orlistat known as tetrahydrolipstatin is a prescription drug designed to treat obesity which is used to aid in weight loss and help to reduce overweight obesity. Here, 3T3-L1 cells were treated under various concentration manners of Orlistat $0.2{\mu}M{\sim}5.0{\mu}M$. and it was confirmed maximum 26.5% inhibition activity compared to control. Thus, we elucidated this platform can be used for the real-time analyzing of cell proliferation, adipocyte differentiation for evaluation of anti-obesity agents on cell chip. Furthermore, we except that this platform technology designed here might be readily be expanded to discover a wider variety of anti-obesity agents.

Anti-Obesity and Inhibitory Effect of Lipid Accumulation of The Cone of Pinus rigida × Pinus taeda in 3T3-L1 Cells

  • Da-Yoon Lee;Tae-Won Jang;So-Yeon Han;Seo-Yoon Park;Woo-Jin Oh;Jae-Ho Park
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2023.04a
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    • pp.55-55
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    • 2023
  • With the COVID-19 pandemic, there is increasing interest in anti-obesity strategies. According to the National Statistical Office, the obesity rate in Korea was 38.3% in 2020 and 37.1% in 2021. Obesity is a risk factor for several severe diseases, including stroke, heart disease, type 2 diabetes, and certain types of cancer. Pinus rigida × Pinus taeda is a hybrid of Pinus rigida Mill and Pinus taeda Linn, and its cones are considered a by-product. Although previous studies have investigated their pharmacological effects on antioxidant activity and protection against oxidative DNA damage, few researchers have explored their potential as functional natural materials. Therefore, we evaluated the anti-obesity effects of the cone of ethyl acetate fraction of P. rigida × P. taeda (ERT), specifically its ability to inhibit lipid accumulation. Our analysis showed that ERT contains phytochemicals (catechin and caffeic acid) which are known to improve immune function and inhibit cell damage. ERT inhibited lipid droplet accumulation at the cellular levels through Oil Red O staining. Furthermore, ERT suppressed the expression of adipogenic transcription factors (PPARγ and CEBP/α) as well as downstream lipogenic target genes (FAS and SREBP-1) thereby inhibiting adipogenesis. ERT also down-regulated key adipogenic markers, including aP2α, while inducing the phosphorylation of AMPK. It has been reported that PPARγ and CEBP/α are expressed in the early stages of adipose differentiation, while SREBP-1 is expressed in the late stage. Therefore, our findings suggest that ERT activates AMPK signaling pathways, which inhibits adipogenic transcription factors (PPARγ, C/EBPα, and SREBP1) and lipogenic genes (FAS and aP2α), thereby blocking lipid accumulation and preventing obesity and related disorders. ERT showed potential as a new resource for developing a functional material for anti-obesity agents.

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Anti-Obesity Effect of Red Radish Coral Sprout Extract by Inhibited Triglyceride Accumulation in a Microbial Evaluation System and in High-Fat Diet-Induced Obese Mice

  • Lee, Nam Keun;Cheon, Chun Jin;Rhee, Jin-Kyu
    • Journal of Microbiology and Biotechnology
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    • v.28 no.3
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    • pp.397-400
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    • 2018
  • Rhodosporidium toruloides, an oleaginous yeast, can be used as a fast and reliable evaluation tool to screen new natural lipid-lowering agents. Herein, we showed that triglyceride (TG) accumulation was inhibited by 42.6% in 0.1% red radish coral sprout extract (RRSE)-treated R. toruloides. We also evaluated the anti-obesity effect of the RRSE in a mouse model. The body weight gain of mice fed a high-fat diet (HFD) with 0.1% RRSE (HFD-RRSE) was significantly decreased by 60% compared with that mice fed the HFD alone after the 8-week experimental period. Body fat of the HFD-RRSE-fed group was dramatically reduced by 38.3% compared with that of the HFD-fed group.