• Title/Summary/Keyword: Substance use disorders

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Antiviral effect of 18-mer-peptide (1b-4/21-C12) on Japanese encephalitis virus and Akabane virus

  • Yang, Dong-Kun;Park, Yu-Ri;Kwon, Young Do;Kim, Ha-Hyun;Hyun, Bang-Hun
    • Korean Journal of Veterinary Research
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    • v.62 no.3
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    • pp.19.1-19.6
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    • 2022
  • Japanese encephalitis virus (JEV) and Akabane virus (AKAV) are mosquito-borne viruses that cause encephalitis and reproductive disorders in horses and cattle, respectively. There is no treatment for JEV or AKAV infections in animals. Therefore, we evaluated the antiviral activity of 18-mer amphipathic peptides in the 1b-4/21-C series on JEV and AKAV using Vero cells in vitro and evaluated their effects on JEV in mice. Of 6 peptides, 1b-4/21-C12 had the lowest IC50 of 0.313 against JEV and its use as an antiviral against JEV and AKAV was examined. The IC50 of 1b-4/21-C12 against JEV and AKAV was 0.78 and 1.14 µM, respectively. Mice treated with 5 or 2 mg/kg of 1b-4/21-C12 had 32% and 16% survival rates, respectively, and the surviving mice treated with 1b-4/21-C12 began to gain weight beginning 8 days post challenge with the virulent Nakayama strain. Moreover, 20 µM 1b-4/21-C peptide had no cytotoxic effects on Vero cells. Our in vitro and in vivo results indicate that 1b-4/21-C12 has antiviral activity against enveloped JEV and AKAV and might be useful as a therapeutic substance.

Analysis of Public and Researcher Interests in Suicide and Related Illnesses, and Acupuncture and Acupressure: Utilizing Google Trends and Major Electronic Database (자살 및 관련 질환과 침치료 및 혈위지압에 대한 대중과 연구자의 관심도 분석: Google Trends와 주요 전자 데이터베이스를 이용하여)

  • Sung-Hyun Kang;Jung-Gyung Lee;Chan-Young Kwon
    • Journal of Oriental Neuropsychiatry
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    • v.34 no.3
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    • pp.235-245
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    • 2023
  • Objectives: The aim of this study was to analyze public and researcher interests in suicide and related illnesses and acupuncture and acupressure treatment using Google Trends and some electronic databases. Methods: Search results for keywords "suicide," "acupuncture," "acupressure," and several illnesses related to suicide were analyzed in Google Trends from January 2004 to June 2023. Illnesses included anxiety, depression (including major depressive disorder), schizophrenia, bipolar disorder, post- traumatic stress disorder (PTSD), eating disorder (including anorexia nervosa and bulimia nervosa), substance use disorder, autism spectrum disorder, personality disorder (including borderline person- ality disorder), and chronic pain. Search results were extracted using relative search volume (RSV) scores between 0 and 100. Search terms were also searched in online databases, including PubMed, CNKI, and OASIS, to estimate the number of related studies, and descriptive analysis was conducted. Results: Google Trends analysis showed a strong positive correlation between the RSVs of "suicide and depression," "acupuncture and chronic pain," and "acupressure and PTSD." The electronic database search results produced numerous studies published on "suicide and depression," "acupuncture and depression," and "acupressure and anxiety." High interest in "suicide and depression," "acupuncture and chronic pain," and "acupressure and anxiety" was seen among the public and researchers. Interest in "suicide and chronic pain," "acupuncture and eating disorder," and "acupressure and PTSD" was higher in the public than among researchers, while "anxiety and suicide" and "anxiety and acu- puncture" showed opposite trends. Conclusions: The results of this research enable an understanding of public and researcher interest in suicide, acupuncture, acupressure, and suicide-related illnesses. The results also provide a basis for fu- ture research and examining public health implications in Korean medicine.

Assessment Instruments for Disaster Behavioral Health (재난정신건강 평가도구)

  • Park, Joo Eon;Kang, Suk-Hoon;Won, Sung-Doo;Roh, Daeyoung;Kim, Won-Hyoung
    • Anxiety and mood
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    • v.11 no.2
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    • pp.91-105
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    • 2015
  • Objectives : After disaster, some people develop posttraumatic stress sequelae such as posttraumatic stress disorder (PTSD), major depression, substance use disorders, and suicide. To date, numerous screening and assessment tools for behavioral health issues including mental health problems, psychosocial maladjustment and status of recovery after disaster have been developed. In this condition, one of important topics is to choose instruments that can quickly and accurately measure the issues. Methods : This article reviewed several self-reported scales in adults for disaster behavioral health, which were searched using academic search engines like PubMed, Scopus, KoreaMed and KISS from the earliest available date of indexing through January 31, 2015. Results : More than 40 eligible instruments evaluating the disaster behavioral health issues containing posttraumatic stress sequelae, psychological and social resources, non-disaster stress, and general functions were presented in terms of availability, effectiveness, and expeditiousness. Also, we introduced basic frame aiming on practical usage, which includes standard version and brief version of the instruments for disaster behavioral health. Conclusion : We suggest the accessibility and the applicability of assessment instruments for disaster behavioral health. The systemic review of this article will provide further directions for them.

Effects of Bisphenol A and BPA Alternatives on the Nervous System (Bisphenol A와 대체물질들이 신경계에 미치는 영향)

  • Ha Jung Moon;Seung Hyun Lee;Hyun Seung Shin;Eui-Man Jung
    • Journal of Life Science
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    • v.33 no.4
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    • pp.371-381
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    • 2023
  • Endocrine disrupting chemicals (EDCs), used in a variety of products in modern society, are hormone-like substances that cause various diseases. Humans are exposed to EDCs through their inclusion in pesticides, plastics, cosmetics, detergents, and drugs. Bisphenol A (BPA), one of the representative endocrine disruptors, is an estrogen-like substance that has been widely used commercially in plastic and epoxy resins. BPA is a chemical that can disrupt the endocrine system, leading to reduced reproductive function, obesity, cancer, and neurodevelopmental disorders. Since the adverse health effects of BPA began to be reported the use of BPA has been regulated worldwide. Various alternatives to BPA have been widely used worldwide; representatively, bisphenol S (BPS) and bisphenol F (BPF) are the most commonly used in commercial contexts. BPS and BPF may cause endocrine-disrupting effects like those of BPA due to their similar chemical structures. Recent studies have reported that BPS and BPF disrupt the neurodevelopmental process and cause neurodevelopmental disorders. Therefore, future studies will be required for safety verification of BPA alternatives and the development of new alternatives to BPA for brain health. In this review, we reviewed the effects of BPA and the alternatives, BPS and BPF, on the nervous system.

Hazardous Health Behaviour among Medical Students: a Study from Turkey

  • Nacar, Melis;Cetinkaya, Fevziye;Baykan, Zeynep;Yilmazel, Gulay;Elmali, Ferhan
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.17
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    • pp.7675-7681
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    • 2015
  • Background: Hazardous health behaviour in young people is an important factor that affects the individual risk for non-communicable diseases and other disorders later in life. This study aimed to determine the hazardous health behaviour of first and last class medical students of Erciyes University. Materials and Methods: This descriptive study was carried out with 240 medical students from the first and 130 students from the last (sixth) class. Data were obtained by questionnaire between March-April 2012. In total, 339 students were included with a response rate of 91.6%. Socio-demographic characteristics, school success, self-reported economic difficulties, health perceptions, hazardous health behaviour related to chronic disease, tobacco, alcohol, substance use, body weight, height, traffic, violence and nutrition were assessed in line with the literature. Results: Of the participants; 64.0% were from first and 36.0% were from the last class. Mean ages for the first and last classes were $19.4{\pm}1.5$ and $24.0{\pm}1.5years$, respectively. In the current study, males exhibited more hazardous behaviour than females. Sime 19.8% of the students in the study group used alcohol, 35.4% used a waterpipe, and 24.8% used tobacco at least once. These rates increased in both genders in the last class and the increase in males was significant. Some 3.8% of the students in the current study used pleasure-inducing illegal substances at least once. All the students participating in the current study were single, the number of males reported not using condoms (8.6%) was 4.56 times higher compared to females. Some 64.0% of the students did not perform physical activity lasting at least 30 minutes for five times a week, 13.0% did not sleep for mean 7-8 hours daily, males having a 2.9 times higher risk. More than 1/3 of the students did not consume cooked vegetable dishes and 1/4 did not consume fresh fruits and salads, the rates were higher among males. Conclusions: In the current study, hazardous health behaviour was prevalent among medical students, with higher risks among males and last class students. According to these results, medical curriculum may be focused on decreasing hazardous health behaviour. In addition, in order to prevent unhealthy behaviour, the number of youth-friendly health facilities should be increased.

Repeated Dose 90-Day Oral Toxicity Study of Dried Thermitomyces albuminosus Powder in Rats (Thermitomyces albuminosus powder의 랫드를 이용한 90일 경구투여독성시험)

  • An, Min Ji;Heo, Hye Seon;Lee, Ji Sun;Son, Hye Young;Lim, Hae Ok;Park, Gang Baek;Lee, Joon Heun;Jee, Jae Gyu;Park, Yeongchul
    • Journal of Life Science
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    • v.26 no.10
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    • pp.1153-1162
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    • 2016
  • Termitomyces albuminosus (Berk.) Heim is a well-known wild edible mushroom in the southern region of China. Novel cerebrosides, termed termitomycesphins, isolated from EtOH extract of T. albuminosus have shown significant neuritogenic activity. Neurotrophic factors have been targeted as potential therapeutic drugs for the treatment of neurodegenerative disorders. However, before expanding their applications to include food or therapeutic agents in Korea, a safety evaluation of T. albuminosus is needed. Herein, in a repeated-dose 90-day oral toxicity study, rats were exposed to a basal diet of powder ground from dried T. albuminosus at dose levels of 5%, 2.5%, 1.25%, and 0%. The following endpoints were evaluated: clinical observation, body weight, gross and microscopic pathology, clinical chemistry, and hematology. Significant dose-dependent increases in the weight of the left kidney were observed, possibly due to the test substance. Based on toxicity-decision criteria for minor compound-related changes (no observed adverse effect level [NOAEL] and no observed effect level [NOEL]), NOAEL was observed in male rats at a dose of 5% of dried T. albuminosus powder, and NOEl was observed in female rats at the same dose. The results point to the safety and potential use of T. albuminosus as a nontoxic neurotrophic factor.