• Title/Summary/Keyword: therapeutic potential

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Structure Prediction of Gasdermin a Receptor by Homology Modelling

  • Subathra Selvam
    • Journal of Integrative Natural Science
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    • v.16 no.3
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    • pp.97-102
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    • 2023
  • The gasdermins are a family of recently identified pore-forming effector proteins that cause membrane permeabilization and pyroptosis, a lytic pro-inflammatory type of cell death. A role in the regulation of cell proliferation and/or differentiation is suggested by the differentiation status-specific expression of gasdermin proteins in epithelial tissues. One of the GSDM protein is Gasdermin A (GSDMA), which decreased in stomach and esophageal cancers, suggesting a tumor suppressor role. GSDMA receptor antagonists have been researched as potential treatments for inflammatory diseases and baldness. GSDMA's significance in a wide range of disorders makes it an important therapeutic target. As a result, homology modelling of the GSDMA receptor was undertaken in the current study using the crystal structures of Mus musculus (GSDMA3), Human gasdermin D (GSDMD), and Murine gasdermin D (murine GSDMD). The best model was chosen based on the validation results after 20 models were developed utilising single template-based approaches. The generated structures can be used for further binding site and docking studies in the future.

Rare complication of skin necrosis after endoscopic debridement and cutaneo-fascial suture for a massive Morel-Lavallée lesion in Korea: a case report

  • Youngmin Kim;Jayun Cho;Myung Jin Jang;Kang Kook Choi
    • Journal of Trauma and Injury
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    • v.36 no.3
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    • pp.304-309
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    • 2023
  • A Morel-Lavallée lesion (MLL) is a pathologic fluid collection within an abnormally formed space, resulting from an internal degloving injury between the muscle fascia and subcutaneous fat layer. Due to its resistance to conservative treatments such as drainage or compression dressing, various therapeutic methods have been developed for MLL. However, no standardized guidelines currently exist. Recently, endoscopic debridement and cutaneo-fascial suture (EDCS) has been introduced for the treatment of MLL, particularly for large lesions resistant to conservative approaches. While this procedure is known to be effective, limited reports are available on potential complications. The authors present a case of skin necrosis following EDCS for a massive MLL.

Effects of immune-challenged domestic silkworm hemolymph on the regulation of SIRT5 and PRDx1 expression

  • Jin Ha Yun;Seong Ryul Kim;Seung-Won Park
    • International Journal of Industrial Entomology and Biomaterials
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    • v.47 no.2
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    • pp.134-139
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    • 2023
  • SIRT5 and PRDx1 play crucial roles in cancer and are involved in the basic mechanisms of reactive oxygen species detoxification. In our previous studies, we showed that hemolymph extracts of immune-challenged Bombyx mori have antioxidant properties. Following H2O2 stimulation, immune-challenged B. mori hemolymph extracts elicited SIRT5 downregulation activity, reaching effective activity at the highest concentration of 100 ppm. Additionally, cells treated with immune-challenged B. mori hemolymph extracts demonstrated increased PRDx1 mRNA expression compared to that of PBS-treated cells. Therefore, immune-challenged B. mori hemolymph extracts offer a potential auxiliary means of treating drug-resistant tumors through downregulation of SIRT5 and upregulation of PRDx1 expression. Nevertheless, further studies on the effects of B. mori hemolymph on SIRT5 and PRDx1 regulation are pertinent for using it as a food or pharmaceutical material and understanding its therapeutic effect on tumors, including those that are drug-resistant.

The Moderating Effect of Spiritual Well-Being on the Relationship Between Childhood Abuse Experiences in Adults and Mental Disorders

  • Park Hannah
    • International journal of advanced smart convergence
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    • v.13 no.2
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    • pp.214-221
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    • 2024
  • This study explores the relationship between childhood abuse experiences and subsequent mental disorders in adults, with a particular focus on the moderating role of spiritual well-being. Using self-reported data from 210 graduate students in the Daejeon and Chungcheong regions, the findings demonstrate that spiritual well-being significantly moderate how childhood abuse impacts adult mental health. Specifically, individuals with lower levels of spiritual well-being experience a greater exacerbation of metnal disorders related to past abuse, while those with higher levels show a buffering effect. These results suggest that enhancing spiritual well-being could be a vital component of therapeutic interventions aimed at preventing mental disorders in adults who have experienced childhood abuse. We highlight the potential benefits of incorporating spiritual well-being into mental health strategies and call for additional research to substantiate these findings across broader populations. This unique contribution underscores the importance of considering spiritual factors int the therpeutic process, offering a new and valuable perspective in the field of mental health research.

Review of Efficacy and Safety of Semaglutide in the Management of Obesity (비만 치료에서 semaglutide의 효능 및 안전성에 대한 고찰)

  • Seunghoon Han;Tae Eun Park
    • Korean Journal of Clinical Pharmacy
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    • v.34 no.1
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    • pp.1-20
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    • 2024
  • This review examines the pivotal clinical trials that evaluated the efficacy and safety of semaglutide, a glucagon-like peptide-1 (GLP-1) receptor agonist, in the management of obesity. The reported findings underscore significant and sustained weight loss achieved with semaglutide in diverse patient groups, although gastrointestinal disorders occurred frequently, leading to therapy discontinuation. Overall, the studies demonstrated the potential of semaglutide as a therapeutic option not only for type 2 diabetes but also for obesity. The treatment landscape in obesity is evolving, as reflected in changing regulatory approvals and clinical guidelines, suggesting a paradigm shift toward personalized approaches in this chronic disease states to achieve optimal treatment outcomes for patients.

Ferroptosis and its role in gastric and colorectal cancers

  • Jinxiu Hou;Bo Wang;Jing Li;Wenbo Liu
    • The Korean Journal of Physiology and Pharmacology
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    • v.28 no.3
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    • pp.183-196
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    • 2024
  • Ferroptosis is a novel mechanism of programmed cell death, characterized by intracellular iron overload, intensified lipid peroxidation, and abnormal accumulation of reactive oxygen species, which ultimately resulting in cell membrane impairment and demise. Research has revealed that cancer cells exhibit a greater demand for iron compared to normal cells, indicating a potential susceptibility of cancer cells to ferroptosis. Stomach and colorectal cancers are common gastrointestinal malignancies, and their elevated occurrence and mortality rates render them a global health concern. Despite significant advancements in medical treatments, certain unfavorable consequences and drug resistance persist. Consequently, directing attention towards the phenomenon of ferroptosis in gastric and colorectal cancers holds promise for enhancing therapeutic efficacy. This review aims to elucidate the intricate cellular metabolism associated with ferroptosis, encompassing lipid and amino acid metabolism, as well as iron metabolic processes. Furthermore, the significance of ferroptosis in the context of gastric and colorectal cancer is thoroughly examined and discussed.

Stunting and Gut Microbiota: A Literature Review

  • Jessy Hardjo;Nathasha Brigitta Selene
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.27 no.3
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    • pp.137-145
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    • 2024
  • Stunting, a condition characterized by impaired growth and development in children, remains a major public health concern worldwide. Over the past decade, emerging evidence has shed light on the potential role of gut microbiota modulation in stunting. Gut microbiota dysbiosis has been linked to impaired nutrient absorption, chronic inflammation, altered short-chain fatty acid production, and perturbed hormonal and signaling pathways, all of which may hinder optimal growth in children. This review aims to provide a comprehensive analysis of existing research exploring the bidirectional relationship between stunting and the gut microbiota. Although stunting can alter the gut microbial community, microbiota dysbiosis may exacerbate it, forming a vicious cycle that sustains the condition. The need for effective preventive and therapeutic strategies targeting the gut microbiota to combat stunting is also discussed. Nutritional interventions, probiotics, and prebiotics are among the most promising approaches to modulate the gut microbiota and potentially ameliorate stunting outcomes. Ultimately, a better understanding of the gut microbiota-stunting nexus is vital for guiding evidence-based interventions that can improve the growth and development trajectory of children worldwide, making substantial strides toward reducing the burden of stunting in vulnerable populations.

CT and MRI for Repaired Complex Adult Congenital Heart Diseases

  • Suvipaporn Siripornpitak;Hyun Woo Goo
    • Korean Journal of Radiology
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    • v.22 no.3
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    • pp.308-323
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    • 2021
  • An increasing number of adult congenital heart disease (ACHD) patients continue to require life-long diagnostic imaging surveillance using cardiac CT and MRI. These patients typically exhibit a large spectrum of unique anatomical and functional changes resulting from either single- or multi-stage palliation and surgical correction. Radiologists involved in the diagnostic task of monitoring treatment effects and detecting potential complications should be familiar with common cardiac CT and MRI findings observed in patients with repaired complex ACHD. This review article highlights the contemporary role of CT and MRI in three commonly encountered repaired ACHD: repaired tetralogy of Fallot, transposition of the great arteries after arterial switch operation, and functional single ventricle after Fontan operation.

Inhibition of Cytochrome P450 by Propolis in Human Liver Microsomes

  • Ryu, Chang Seon;Oh, Soo Jin;Oh, Jung Min;Lee, Ji-Yoon;Lee, Sang Yoon;Chae, Jung-woo;Kwon, Kwang-il;Kim, Sang Kyum
    • Toxicological Research
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    • v.32 no.3
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    • pp.207-213
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    • 2016
  • Although propolis is one of the most popular functional foods for human health, there have been no comprehensive studies of herb-drug interactions through cytochrome P450 (CYP) inhibition. The purpose of this study was to determine the inhibitory effects of propolis on the activities of CYP1A2, 2A6, 2B6, 2C9, 2C19, 2D6, 2E1 and 3A4 using pooled human liver microsomes (HLMs). Propolis inhibited CYP1A2, CYP2E1 and CYP2C19 with an $IC_{50}$ value of 6.9, 16.8, and $43.1{\mu}g/mL$, respectively, whereas CYP2A6, 2B6, 2C9, 2D6, and 3A4 were unaffected. Based on half-maximal inhibitory concentration shifts between microsomes incubated with and without nicotinamide adenine dinucleotide phosphate, propolis-induced CYP1A2, CYP2C19, and CYP2E1 inhibition was metabolism-independent. To evaluate the interaction potential between propolis and therapeutic drugs, the effects of propolis on metabolism of duloxetine, a serotonin-norepinephrine reuptake inhibitor, were determined in HLMs. CYP1A2 and CYP2D6 are involved in hydroxylation of duloxetine to 4-hydroxy duloxetine, the major metabolite, which was decreased following propolis addition in HLMs. These results raise the possibility of interactions between propolis and therapeutic drugs metabolized by CYP1A2.

In Vitro and in Vivo Effects of Nitrofurantoin on Experimental Toxoplasmosis

  • Yeo, Seon-Ju;Jin, ChunMei;Kim, SungYeon;Park, Hyun
    • Parasites, Hosts and Diseases
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    • v.54 no.2
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    • pp.155-161
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    • 2016
  • Toxoplasma gondii is an important opportunistic pathogen that causes toxoplasmosis, which has very few therapeutic treatment options. The most effective therapy is a combination of pyrimethamine and sulfadiazine; however, their utility is limited because of drug toxicity and serious side effects. For these reasons, new drugs with lower toxicity are urgently needed. In this study, the compound, (Z)-1-[(5-nitrofuran-2-yl)methyleneamino]-imidazolidine-2,4-dione (nitrofurantoin), showed anti-T. gondii effects in vitro and in vivo. In HeLa cells, the selectivity of nitrofurantoin was 2.3, which was greater than that of pyrimethamine (0.9). In T. gondii-infected female ICR mice, the inhibition rate of T. gondii growth in the peritoneal cavity was 44.7% compared to the negative control group after 4-day treatment with 100 mg/kg of nitrofurantoin. In addition, hematology indicators showed that T. gondii infection-induced serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels, biochemical parameters involved in liver injury, were reduced by nitrofurantoin significantly. Moreover, nitrofurantoin exerted significant effects on the index of antioxidant status, i.e., malondialdehyde (MDA) and glutathione (GSH). The nitrofurantoin-treated group inhibited the T. gondii-induced MDA levels while alleviating the decrease in GSH levels. Thus, nitrofurantoin is a potential anti-T. gondii candidate for clinical application.