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Dal Molin TR, Pappis L, Kolinski Machado A, Domingos da Silveira G, Rorato Sagrillo M, Gonzalez Urquhart C, de Carvalho LM, Noremberg S, Viana C. Adulterated dietary supplements commercialized in Brazil: development of a screening method and a preliminary study of cytotoxicity. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2024:1-22. [PMID: 39083485 DOI: 10.1080/19440049.2024.2385712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 07/18/2024] [Accepted: 07/19/2024] [Indexed: 08/02/2024]
Abstract
The high consumption of dietary supplements was a fundamental driver for the creation of the regulatory framework by the Brazilian governmental authorities. However, the regulatory agencies lack official low-cost methodologies to evaluate the quality of food supplements. A preliminary screening method by HPLC-DAD was proposed and validated for screening and quantification of adulterants in dietary supplements. The limits of detection and quantification were <0.11 and 0.37 µg.g-1, respectively. The method was applied for the investigation of ten unauthorized substances (spironolactone, hydrochlorothiazide, furosemide, clenbuterol, testosterone, testosterone propionate, yohimbine, vardenafil, tadalafil, and sildenafil) with a time of analysis of <5 min. Sixteen percent of the 44 samples analyzed had at least one adulterant at or above therapeutic concentrations. Subsequently, in vitro evaluations were performed of the potential cytotoxicity to evaluate the cell viability, DNA damage, determination of nitric oxide levels, and quantification of reactive oxygen species. Despite the necessity of further studies, the results indicate a relationship between the presence of adulterants in food supplements and a potential cytotoxic effect.
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Affiliation(s)
- Thaís R Dal Molin
- Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Lauren Pappis
- Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
- Graduate Program in Nanosciences, Franciscan University, Santa Maria, Brazil
| | | | | | | | - Carolina Gonzalez Urquhart
- Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Leandro M de Carvalho
- Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
- Department of Chemistry, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Simone Noremberg
- Department of Chemistry, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
| | - Carine Viana
- Graduate Program in Pharmaceutical Sciences, Federal University of Santa Maria (UFSM), Santa Maria, Brazil
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2
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Yetsenga R, Banerjee R, Streatfeild J, McGregor K, Austin SB, Lim BWX, Diedrichs PC, Greaves K, Mattei J, Puhl RM, Slaughter-Acey JC, Solanke I, Sonneville KR, Velasquez K, Cheung S. The economic and social costs of body dissatisfaction and appearance-based discrimination in the United States. Eat Disord 2024:1-31. [PMID: 38520696 DOI: 10.1080/10640266.2024.2328461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/25/2024]
Abstract
This study estimated the social and economic costs of body dissatisfaction and appearance-based discrimination (specifically, weight and skin-shade discrimination) in the United States (USA) in the 2019 calendar year. We used a prevalence-based approach and a cost-of-illness method to estimate the annual cost of harmful appearance ideals for cases of body dissatisfaction and discrimination based on weight and skin shade. Impacts on conditions/illnesses such as eating disorders that are attributable to body dissatisfaction, weight discrimination and skin-shade discrimination were identified through a quasi-systematic literature review, which captured financial, economic, and non-financial costs. For each impact attributable to body dissatisfaction or appearance-based discrimination, annual health system and productivity costs (or labor market costs) were primarily estimated by using a population attributable fraction methodology. Only direct costs that resulted from body dissatisfaction and appearance-based discrimination were included (for example, costs associated with conditions such as depression attributable to body dissatisfaction or appearance-based discrimination). In contrast, indirect costs (e.g. costs associated with a health condition developed following skin bleaching, which was undertaken as a result of body dissatisfaction) were not included. In 2019 body dissatisfaction incurred $84 billion in financial and economic costs and $221 billion through reduced well-being. Financial costs of weight discrimination and skin-shade discrimination were estimated to be $200 billion and $63 billion, respectively, and reduced well-being was estimated to be $206.7 billion due to weight discrimination and $8.4 billion due to skin-shade discrimination. Sensitivity testing revealed the costs likely range between $226 billion and $507 billion for body dissatisfaction, between $175 billion and $537 billion for skin-shade discrimination, and between $126 billion and $265 billion for weight discrimination. This study demonstrates that the prevalence and economic costs of body dissatisfaction and weight and skin-shade discrimination are substantial, which underscores the urgency of identifying policy actions designed to promote prevention.
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Affiliation(s)
- Rhiannon Yetsenga
- Health and Social Policy, Deloitte Access Economics, Sydney, Australia
| | - Rhea Banerjee
- Health and Social Policy, Deloitte Access Economics, Sydney, Australia
| | - Jared Streatfeild
- Health and Social Policy, Deloitte Access Economics, Sydney, Australia
| | | | - S Bryn Austin
- Division of Adolescent/Young Adult Medicine, Boston Children's Hospital; Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health; Department of Pediatrics, Harvard Medical School, Boston, Massachusetts, USA
| | - Belle W X Lim
- Health and Social Policy, Deloitte Access Economics, Sydney, Australia
| | | | - Kayla Greaves
- The Centre for Appearance Research is cross-departmental, University of the West of England, Bristol, UK
| | - Josiemer Mattei
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Rebecca M Puhl
- Department of Human Development & Family Sciences, Rudd Center for Food Policy and Health, University of Connecticut, Storrs, Connecticut, USA
| | - Jaime C Slaughter-Acey
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Iyiola Solanke
- Faculty of Law, University of Oxford/Somerville College, Oxford, UK
| | - Kendrin R Sonneville
- Department of Nutritional Sciences, University of Michigan School of Public Health, Ann Arbor, Michigan, USA
| | | | - Simone Cheung
- Health and Social Policy, Deloitte Access Economics, Sydney, Australia
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3
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Raffoul A, Beccia AL, Jackson DA, Sarda V, Hart JE, Chavarro JE, Austin SB. Associations between weight discrimination and the use of potentially harmful dietary supplements during the COVID-19 pandemic in the United States. Soc Sci Med 2023; 335:116232. [PMID: 37708694 PMCID: PMC10567056 DOI: 10.1016/j.socscimed.2023.116232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/06/2023] [Accepted: 09/08/2023] [Indexed: 09/16/2023]
Abstract
The dietary supplements industry disproportionately markets potentially harmful products promising weight loss, cleansing/detoxing, and boosted energy and immunity to women. The COVID-19 pandemic heightened consumer concerns around health and body weight, which may have increased women's risks of using supplements, particularly if they had a higher weight and experienced weight discrimination. This study aimed to estimate inequities in prevalence and change in use of weight-loss, cleanse/detox, immunity, and energy supplements in the first year of the pandemic and to assess the extent to which the relationship between weight and supplement use differs across discrimination experiences. We drew upon longitudinal data from cisgender women in the U.S. COVID-19 Pandemic Substudy of the Nurses' Health Study II and 3 and Growing Up Today Study cohorts, collected over 5 waves from April/May 2020 to April 2021 (N = 51,814). Modified Poisson generalized estimating equation models, adjusted for age, cohort, race/ethnicity, wave, and Census region, estimated the relative excess risk due to interaction (RERI) between weight status and weight discrimination on prevalence of supplement use. Weight status categories were derived from body mass index (BMI), and weight discrimination was assessed using the attributions item of the Everyday Discrimination Scale. Baseline prevalence of supplement use was 2.7% for weight-loss, 3.3% for cleanse/detox, 4.2% for energy, and 22.6% for immune. Respondents with BMIs of 25-29.9 kg/m2 and 30-34.9 kg/m2 who experienced weight discrimination had RERI values of 0.89 (95% CI 0.14, 1.65) and 1.00 (95% CI 0.25, 1.75) for weight-loss and 0.57 (95% CI 0.13, 1.02) and 0.60 (95% CI 0.19, 1.01) for energy supplements, respectively, indicating this group had excess risk of use compared to lower BMI respondents who experienced no weight discrimination. The findings demonstrate the disproportionate impact of weight discrimination on use of potentially harmful supplements among cisgender women with higher weights during the pandemic.
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Affiliation(s)
- Amanda Raffoul
- Division of Adolescent/Young Adult Medicine, Boston Children's Hospital, Boston, MA, USA; Department of Pediatrics, Harvard Medical School, Boston, MA, USA.
| | - Ariel L Beccia
- Division of Adolescent/Young Adult Medicine, Boston Children's Hospital, Boston, MA, USA.
| | - Destiny A Jackson
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - Vishnudas Sarda
- Division of Adolescent/Young Adult Medicine, Boston Children's Hospital, Boston, MA, USA.
| | - Jaime E Hart
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA; Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - Jorge E Chavarro
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, and Harvard Medical School, Boston, MA, USA; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
| | - S Bryn Austin
- Division of Adolescent/Young Adult Medicine, Boston Children's Hospital, Boston, MA, USA; Department of Pediatrics, Harvard Medical School, Boston, MA, USA; Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
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4
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Naringenin inhibits lipid accumulation by activating the AMPK pathway in vivo and vitro. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2022.10.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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5
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Castellá M, Villarroya F. Brown fat. Med Clin (Barc) 2023:S0025-7753(23)00050-7. [PMID: 36868963 DOI: 10.1016/j.medcli.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 03/05/2023]
Affiliation(s)
- Moisés Castellá
- Departament de Bioquímica i Biomedicina Molecular, Institut de Biomedicina (IBUB), Universitat de Barcelona, Barcelona, España; Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Madrid, España
| | - Francesc Villarroya
- Departament de Bioquímica i Biomedicina Molecular, Institut de Biomedicina (IBUB), Universitat de Barcelona, Barcelona, España; Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Madrid, España.
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6
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Mehler PS, Anderson K, Bauschka M, Cost J, Farooq A. Emergency room presentations of people with anorexia nervosa. J Eat Disord 2023; 11:16. [PMID: 36759897 PMCID: PMC9909152 DOI: 10.1186/s40337-023-00742-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 01/27/2023] [Indexed: 02/11/2023] Open
Abstract
People with anorexia nervosa (AN) tend to shy away from engaging in typical primary care provider relationships in order to avoid detection. Therefore, they may seek care for their medical concerns through a local emergency department (ED). Inherently, AN is associated with a litany of medical complications, which become more prevalent as the severity of their eating disorder increases. Notwithstanding the typical young age at the onset of AN, no body system is immune to these medical complications. Thus, ED providers may need to pursue a medical diagnosis in order to explain presenting symptoms in people with AN. In addition to the medical issues, AN is also a serious mental illness with high mortality rates, including deaths by suicide. Therefore, ED providers also need to be familiar with relevant mental health issues for these people.
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Affiliation(s)
- Philip S Mehler
- ACUTE Center for Eating Disorders at Denver Health, Denver, CO, USA. .,University of Colorado School of Medicine, Denver, CO, USA.
| | - Kristin Anderson
- ACUTE Center for Eating Disorders at Denver Health, Denver, CO, USA.,University of Colorado School of Medicine, Denver, CO, USA
| | - Maryrose Bauschka
- ACUTE Center for Eating Disorders at Denver Health, Denver, CO, USA.,University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Jeana Cost
- ACUTE Center for Eating Disorders at Denver Health, Denver, CO, USA.,Eating Recovery Center, Denver, CO, USA
| | - Asma Farooq
- ACUTE Center for Eating Disorders at Denver Health, Denver, CO, USA.,University of Utah School of Medicine, Salt Lake City, UT, USA
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. P, Kumar N, Kapoor A, Rajput J, Singh D, . V. Fabrication and Characterization of Sulphur‐Doped Graphitic Carbon Nitride Nanosheets as a Highly Selective and Ultrasensitive Electrochemical Sensor for Detection of 2,4‐Dinitrophenol in Real Gym Supplements. ELECTROANAL 2022. [DOI: 10.1002/elan.202200283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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8
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Olszewski PK, Noble EE, Paiva L, Ueta Y, Blevins JE. Oxytocin as a potential pharmacological tool to combat obesity. J Neuroendocrinol 2022; 34:e13106. [PMID: 35192207 PMCID: PMC9372234 DOI: 10.1111/jne.13106] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/06/2022] [Accepted: 02/08/2022] [Indexed: 11/30/2022]
Abstract
The neuropeptide oxytocin (OT) has emerged as an important anorexigen in the regulation of food intake and energy balance. It has been shown that the release of OT and activation of hypothalamic OT neurons coincide with food ingestion. Its effects on feeding have largely been attributed to limiting meal size through interactions in key regulatory brain regions governing the homeostatic control of food intake such as the hypothalamus and hindbrain in addition to key feeding reward areas such as the nucleus accumbens and ventral tegmental area. Furthermore, the magnitude of an anorexigenic response to OT and feeding-related activation of the brain OT circuit are modified by the composition and flavor of a diet, as well as by a social context in which a meal is consumed. OT is particularly effective in reducing consumption of carbohydrates and sweet tastants. Pharmacologic, genetic, and pair-feeding studies indicate that OT-elicited weight loss cannot be fully explained by reductions of food intake and that the overall impact of OT on energy balance is also partly a result of OT-elicited changes in lipolysis, energy expenditure, and glucose regulation. Peripheral administration of OT mimics many of its effects when it is given into the central nervous system, raising the questions of whether and to what extent circulating OT acts through peripheral OT receptors to regulate energy balance. Although OT has been found to elicit weight loss in female mice, recent studies have indicated that sex and estrous cycle may impact oxytocinergic modulation of food intake. Despite the overall promising basic research data, attempts to use OT in the clinical setting to combat obesity and overeating have generated somewhat mixed results. The focus of this mini-review is to briefly summarize the role of OT in feeding and metabolism, address gaps and inconsistencies in our knowledge, and discuss some of the limitations to the potential use of chronic OT that should help guide future research on OT as a tailor-made anti-obesity therapeutic.
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Affiliation(s)
- Pawel K Olszewski
- Faculty of Science and Engineering, University of Waikato, Waikato, New Zealand
- Department of Food Science and Nutrition, College of Food, Agricultural and Natural Resource Sciences, University of Minnesota, St Paul, Minnesota, USA
- Department of Integrative Biology and Physiology, Medical School, University of Minnesota, Minneapolis, Minnesota, USA
| | - Emily E Noble
- Department of Nutritional Sciences, University of Georgia, Athens, Georgia, USA
| | - Luis Paiva
- Instituto de Ciencia Animal, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - Yoichi Ueta
- Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan
| | - James E Blevins
- Department of Veterans Affairs Medical Center, VA Puget Sound Health Care System, Office of Research and Development Medical Research Service, Seattle, Washington, USA
- Division of Metabolism, Endocrinology and Nutrition, Department of Medicine, University of Washington School of Medicine, Seattle, Washington, USA
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9
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Tondt J, Bays HE. Concomitant medications, functional foods, and supplements: An Obesity Medicine Association (OMA) Clinical Practice Statement (CPS) 2022. OBESITY PILLARS (ONLINE) 2022; 2:100017. [PMID: 37990714 PMCID: PMC10661915 DOI: 10.1016/j.obpill.2022.100017] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 04/03/2022] [Indexed: 11/23/2023]
Abstract
Background This Obesity Medicine Association (OMA) Clinical Practice Statement (CPS) is intended to provide clinicians an overview of the body weight effects of concomitant medications (i.e., pharmacotherapies not specifically for the treatment of obesity) and functional foods, as well as adverse side effects of supplements sometimes used by patients with pre-obesity/obesity. Methods The scientific information for this CPS is based upon published scientific citations, clinical perspectives of OMA authors, and peer review by the Obesity Medicine Association leadership. Results This CPS outlines clinically relevant aspects of concomitant medications, functional foods, and many of the more common supplements as they relate to pre-obesity and obesity. Topics include a discussion of medications that may be associated with weight gain or loss, functional foods as they relate to obesity, and side effects of supplements (i.e., with a focus on supplements taken for weight loss). Special attention is given to the warnings and lack of regulation surrounding weight loss supplements. Conclusions This Obesity Medicine Association (OMA) Clinical Practice Statement (CPS) on concomitant medications, functional foods, and supplements is one of a series of OMA CPSs designed to assist clinicians in the care of patients with the disease of pre-obesity/obesity. Implementation of appropriate practices in these areas may improve the health of patients, especially those with adverse fat mass and adiposopathic metabolic consequences.
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Affiliation(s)
- Justin Tondt
- Department of Family and Community Medicine, Eastern Virginia Medical School, P.O. Box 1980, Norfolk, VA, 23501, USA
| | - Harold Edward Bays
- Louisville Metabolic and Atherosclerosis Research Center, 3288 Illinois Avenue, University of Louisville School of Medicine, Louisville, KY, 40213, USA
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10
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N'guessan BB, Twumasi-Ankrah JS, Amponsah SK, Adams I, Poakwah AKK, Brown C, Adinortey MB, Sarkodie JA, Adi-Dako O, Asiedu-Gyekye IJ, Appiah-Opong R. Effect of Metaswitch® dietary supplement on anthropometric parameters, serum lipids, glucose level, oxidative stress and in vivo antioxidant properties in high fat diet-induced overweight Sprague Dawley rats. Biomed Pharmacother 2022; 149:112892. [PMID: 35358796 DOI: 10.1016/j.biopha.2022.112892] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/17/2022] [Accepted: 03/24/2022] [Indexed: 02/07/2023] Open
Abstract
PURPOSE Obesity and overweight are metabolic disorders associated with oxidative stress, and risk factors for many chronic diseases. We sought to investigate the effects of Metaswitch dietary supplement on weight gain and associated acute metabolic alterations in a high-fat diet-induced overweight rat model. METHODS Female Sprague Dawley (SD) rats were put into 6 groups. Control groups were fed normal (NCD) or high-fat diet (HFD). Treatment groups on HFD receieved 3 different daily doses of Metaswitch for 3 weeks. Another group on HFD received Slimrite® (phenylpropanolamine), a standard drug. Rats on HFD also received cyproheptadine to stimulate appetite. Food consumption and anthropometric parameters were determined weekly. Serum lipids, glucose level, hepatic lipid peroxidation, and antioxidant activity were used to assess overweight in rats. RESULTS Food intake remained relatively constant among groups. Rats on HFD had significantly increased body weight compared to rats fed NCD. Metaswitch significantly prevented weight gain; this effect was greater or similar to rats administered Slimrite, but was not dose-dependant. No significant changes occurred in the levels of serum lipids and glucose among the groups. However, serum triglyceride (TG) was significantly increased. The TG/HDL-C ratio revealed significant metabolic alterations which was prevented by Metaswitch. Catalase activity was significantly decreased in the HFD untreated group but was restored in Metaswitch-treated groups. CONCLUSIONS A 3-week HFD regimen with cyproheptadine supplementation in female SD rats resulted in a significant increase in body weight and acute metabolic alterations. The aforementioned changes were found to have been prevented with the administration of Metaswitch.
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Affiliation(s)
- Benoit Banga N'guessan
- Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, PO Box LG 43 Legon, Accra, Ghana.
| | - Jessica Sarpongmaa Twumasi-Ankrah
- Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, PO Box LG 43 Legon, Accra, Ghana
| | - Seth Kwabena Amponsah
- Department of Medical Pharmacology, Medical School, College of Health Sciences, University of Ghana, Accra, Ghana
| | - Ismaila Adams
- Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, PO Box LG 43 Legon, Accra, Ghana
| | - Albert Kyei-Kankam Poakwah
- Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, PO Box LG 43 Legon, Accra, Ghana; Department of Nutrition and Dietetics, School of Biomedical and Allied Health Sciences, College of Health Sciences, University of Ghana, Ghana
| | - Charles Brown
- Department of Medical Laboratory Sciences, School of Biomedical and Allied Health Sciences, College of Health Sciences, University of Ghana, Ghana
| | | | - Joseph Adusei Sarkodie
- Department of Pharmacognosy and Herbal Medicine, School of Pharmacy, College of Health Sciences, University of Ghana, PO Box LG 43 Legon, Accra, Ghana
| | - Ofosua Adi-Dako
- Department of Pharmaceutics and Microbiology, School of Pharmacy, College of Health Sciences, University of Ghana, Ghana
| | - Isaac Julius Asiedu-Gyekye
- Department of Pharmacology and Toxicology, School of Pharmacy, College of Health Sciences, University of Ghana, PO Box LG 43 Legon, Accra, Ghana
| | - Regina Appiah-Opong
- Department of Clinical Pathology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, Ghana
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11
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Al-Lahham S, Jaradat N, Hamayel A, Assaassa A, Hammad F, Mosa A, Nafaa F, Ghanim M, Dwikat M, AlQub M, Rahim AA, Barqawi A. Hexane extract of Curcuma longa L. inhibits the activities of key enzymes and pro- inflammatory adipokines linked to obesity. Eur J Integr Med 2021. [DOI: 10.1016/j.eujim.2021.101400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Sharp KJ, Vitagliano JA, Weitzman ER, Fitzgerald S, Dahlberg SE, Austin SB. Peer-to-Peer Social Media Communication About Dietary Supplements Used for Weight Loss and Sports Performance Among Military Personnel: Pilot Content Analysis of 11 Years of Posts on Reddit. JMIR Form Res 2021; 5:e28957. [PMID: 34605769 PMCID: PMC8524331 DOI: 10.2196/28957] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 05/03/2021] [Accepted: 06/01/2021] [Indexed: 01/16/2023] Open
Abstract
Background Over 60% of military personnel in the United States currently use dietary supplements. Two types of dietary supplements, weight loss and sports performance (WLSP) supplements, are commonly used by military personnel despite the associated serious adverse effects such as dehydration and stroke. Objective To understand peer-to-peer communication about WLSP supplements among military personnel, we conducted a pilot study using the social media website, Reddit. Methods A total of 64 relevant posts and 243 comments from 2009 to 2019 were collected from 6 military subreddits. The posts were coded for year of posting, subreddit, and content consistent with the following themes: resources about supplement safety and regulation, discernability of supplement use through drug testing, serious adverse effects, brand names or identifiers, and reasons for supplement use. Results A primary concern posted by personnel who used supplements was uncertainty about the supplements that were not detectable on a drug test. Supplements to improve workout performance were the most frequently used. Conclusions Our pilot study suggests that military personnel may seek out peer advice about WLSP supplements on Reddit and spread misinformation about the safety and effectiveness of these products through this platform. Future directions for the monitoring of WLSP supplement use in military personnel are discussed.
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Affiliation(s)
- Kendall J Sharp
- Department of Social and Behavioral Sciences, Harvard T. H. Chan School of Public Health, Boston, MA, United States.,Division of Adolescent and Young Adult Medicine, Boston Children's Hospital, Boston, MA, United States
| | - Julia A Vitagliano
- Division of Adolescent and Young Adult Medicine, Boston Children's Hospital, Boston, MA, United States
| | - Elissa R Weitzman
- Division of Adolescent and Young Adult Medicine, Boston Children's Hospital, Boston, MA, United States.,Department of Pediatrics, Harvard Medical School, Boston, MA, United States
| | - Susan Fitzgerald
- Division of Adolescent and Young Adult Medicine, Boston Children's Hospital, Boston, MA, United States
| | - Suzanne E Dahlberg
- Division of Adolescent and Young Adult Medicine, Boston Children's Hospital, Boston, MA, United States.,Department of Pediatrics, Harvard Medical School, Boston, MA, United States
| | - S Bryn Austin
- Department of Social and Behavioral Sciences, Harvard T. H. Chan School of Public Health, Boston, MA, United States.,Division of Adolescent and Young Adult Medicine, Boston Children's Hospital, Boston, MA, United States.,Department of Pediatrics, Harvard Medical School, Boston, MA, United States
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13
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Tong HL, Chen H, Gong FP, Zhong LY, Zhu J, Yang SH. Components and Pharmacodynamical Mechanism of Yinfupian Based on Liquid Chromatography-Mass Spectrometry and Proteomics Analyses. Front Pharmacol 2021; 12:680640. [PMID: 34262452 PMCID: PMC8273442 DOI: 10.3389/fphar.2021.680640] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 06/02/2021] [Indexed: 12/30/2022] Open
Abstract
Objective: According to the treatment records of Yang deficiency syndrome (YDS) with characteristic decoction pieces of lateral root of Aconitum carmichaelii—Yinfupian (YF) in traditional Chinese medicine prepare school, known as “Jianchangbang”. The aim of this study was to investigate differences in the composition and therapeutic mechanism of the unprocessed lateral root of Aconitum carmichaelii (ULRA) and its processed product (YF). Methods: Ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry and orthogonal partial least squares discriminant analysis method were used to determine and screen the main components of ULRA and YF. Changes in the histological structure and morphology of gonads in rats were observed using hematoxylin-eosin. Enzyme-linked immunosorbent assay was used to determine the contents of serum cyclic adenosine monophosphate and cyclic guanosine monophosphate in YDS rats treated with ULRA and YF. Tandem mass tag proteomics analysis was used to identify the differentially expressed proteins in YDS rats treated with ULRA and YF. Results: Both ULRA and YF exerted certain therapeutic effects on rats with YDS. They improved the gonadal morphology and increased the contents of serum cyclic adenosine monophosphate and cyclic guanosine monophosphate. After processing of ULRA into YF, the content of C19-diester-diterpenoid alkaloids decreased (converted into C19-monoester-diterpenoid alkaloids and C19-alkylol amine-diterpenoid alkaloids), whereas that of C20-diterpene alkaloids increased. Proteomics analysis showed that cytochrome P450 and aldehyde oxidase 3 (AOX3) were downregulated, whereas cathepsin G (CTSG) was upregulated in rats with YDS. Treatment with ULRA mainly downregulated the expression of α-actinin, fast skeletal troponin, creatine kinase, and myosin. Treatment with YF mainly upregulated the expression of mitochondrial ribosomal protein and mitochondrial inner membrane protein. Conclusion: ULRA and YF exerted good therapeutic effects on YDS; the main difference in components between these preparations was in C19-diterpenoid alkaloids. ULRA mainly acts on the muscle contraction-related proteins and is closely related to inflammation and myocardial injury. YF mainly acts on the mitochondrial proteins and is closely related to adenosine triphosphate energy metabolism.
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Affiliation(s)
- Heng-Li Tong
- Laboratory of Traditional Chinese Medicine Preparation, School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Hao Chen
- Laboratory of Traditional Chinese Medicine Preparation, School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Fei-Peng Gong
- Department of Orthopedic, Jiangxi Provincial People's Hospital, Nanchang, China
| | - Ling-Yun Zhong
- Laboratory of Traditional Chinese Medicine Preparation, School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Jing Zhu
- Laboratory of Traditional Chinese Medicine Preparation, School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Song-Hong Yang
- Laboratory of Traditional Chinese Medicine Preparation, School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
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14
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Active pharmaceutical contaminants in dietary supplements: A tier-based risk assessment approach. Regul Toxicol Pharmacol 2021; 123:104955. [PMID: 34022259 DOI: 10.1016/j.yrtph.2021.104955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 04/10/2021] [Accepted: 05/06/2021] [Indexed: 11/23/2022]
Abstract
The presence of active pharmaceutical ingredients (APIs) in adulterated or contaminated dietary supplements is a current product safety concern. Since there are limited guidelines, and no published consensus methods, we developed a tier-based framework incorporating typical lines of evidence for determining the human health risk associated with APIs in dietary supplements. Specifically, the tiered approach outlines hazard identification and decision to test for APIs in products based on criteria for likelihood of contamination or adulteration, and evaluation of manufacturer production standards. For products with detectable levels of APIs, a variety of default approaches, including the use of fraction of the therapeutic dose and the threshold of toxicological concern (TTC), as well as health-based exposure limits (HBELs) are applied. In order to demonstrate its practical use, as well as any limitations and/or special considerations, this framework was applied to five dietary supplements (currently available to the public). We found that the detected levels of APIs in some dietary supplements were above the recommended dose of the drugs, and thus, pose a significant health risk to consumers and potentially workers involved in manufacturing of these supplements. The results support the value of increased product quality surveillance and perhaps regulatory activity.
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15
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A Young Man with Accelerated Hyperthermia, Hypercapnia, and Profound Muscle Rigidity after Ingestion of a Weight Loss Agent. Ann Am Thorac Soc 2021; 17:361-366. [PMID: 32108497 DOI: 10.1513/annalsats.201908-574cc] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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16
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Ren Z, Chen Y, Wang J, Zheng P, Zhang H, Jiang H. A highly specific and sensitive indirect competitive monoclonal ELISA for the detection of brombuterol in animal feed, swine urine, pork and liver samples. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:586-593. [PMID: 33596157 DOI: 10.1080/19440049.2021.1877835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Brombuterol, a new β-adrenergic agonist to enhance animal growth and increase feeding efficiency, is forbidden as an additive in animal feed for livestock production due to its adverse effects on consumers. In this study, a highly specific and sensitive monoclonal antibody was obtained and an indirect competitive monoclonal ELISA was developed to detect brombuterol, with an IC50 value of 0.1 μg/kg (μg/L) and no cross-reactivity to other structurally related β-adrenergic agonists. The average recovery of brombuterol using the icELISA method ranged from 72.9% to 106.4% with the coefficient of variation lower than 18.9%, which was determined by analysing spiked animal feed, swine urine, pork and liver samples (n = 5). Finally, the icELISA gave results having a good correlation with those obtained by liquid chromatography-tandem mass spectrometry. These results demonstrated that the developed icELISA for the detection of brombuterol is highly specific, sensitive, and reliable, indicating good potential for use in the area of food safety to improve consumer protection.
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Affiliation(s)
- Zhenhui Ren
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, PR China
| | - Yinhui Chen
- Products Development Department, Beijing WDWK Biotechnology Co. Ltd, Beijing, PR China
| | - Jianyi Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, PR China
| | - Pimiao Zheng
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, PR China
| | - Huixia Zhang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, PR China
| | - Haiyang Jiang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Veterinary Medicine, China Agricultural University, Beijing, PR China
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17
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Van Schaik L, Kettle C, Green R, Irving HR, Rathner JA. Effects of Caffeine on Brown Adipose Tissue Thermogenesis and Metabolic Homeostasis: A Review. Front Neurosci 2021; 15:621356. [PMID: 33613184 PMCID: PMC7889509 DOI: 10.3389/fnins.2021.621356] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 01/11/2021] [Indexed: 12/11/2022] Open
Abstract
The impact of brown adipose tissue (BAT) metabolism on understanding energy balance in humans is a relatively new and exciting field of research. The pathogenesis of obesity can be largely explained by an imbalance between caloric intake and energy expenditure, but the underlying mechanisms are far more complex. Traditional non-selective sympathetic activators have been used to artificially elevate energy utilization, or suppress appetite, however undesirable side effects are apparent with the use of these pharmacological interventions. Understanding the role of BAT, in relation to human energy homeostasis has the potential to dramatically offset the energy imbalance associated with obesity. This review discusses paradoxical effects of caffeine on peripheral adenosine receptors and the possible role of adenosine in increasing metabolism is highlighted, with consideration to the potential of central rather than peripheral mechanisms for caffeine mediated BAT thermogenesis and energy expenditure. Research on the complex physiology of adipose tissue, the embryonic lineage and function of the different types of adipocytes is summarized. In addition, the effect of BAT on overall human metabolism and the extent of the associated increase in energy expenditure are discussed. The controversy surrounding the primary β-adrenoceptor involved in human BAT activation is examined, and suggestions as to the lack of translational findings from animal to human physiology and human in vitro to in vivo models are provided. This review compares and distinguishes human and rodent BAT effects, thus developing an understanding of human BAT thermogenesis to aid lifestyle interventions targeting obesity and metabolic syndrome. The focus of this review is on the effect of BAT thermogenesis on overall metabolism, and the potential therapeutic effects of caffeine in increasing metabolism via its effects on BAT.
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Affiliation(s)
- Lachlan Van Schaik
- Department of Pharmacy and Biomedical Sciences, La Trobe Institute for Molecular Science, La Trobe University, Bendigo, VIC, Australia
| | - Christine Kettle
- Department of Pharmacy and Biomedical Sciences, La Trobe Institute for Molecular Science, La Trobe University, Bendigo, VIC, Australia
| | - Rodney Green
- Department of Pharmacy and Biomedical Sciences, La Trobe Institute for Molecular Science, La Trobe University, Bendigo, VIC, Australia
| | - Helen R. Irving
- Department of Pharmacy and Biomedical Sciences, La Trobe Institute for Molecular Science, La Trobe University, Bendigo, VIC, Australia
| | - Joseph A. Rathner
- Department of Pharmacy and Biomedical Sciences, La Trobe Institute for Molecular Science, La Trobe University, Bendigo, VIC, Australia
- Department of Physiology, School of Biomedical Sciences, The University of Melbourne, Melbourne, VIC, Australia
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18
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Discovery and characterization of pentacyclic triterpenoid acids in Styrax as potent and reversible pancreatic lipase inhibitors. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104159] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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19
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Germain DJ, Leavey DC, Van Hout PMC, McVeigh PJ. 2,4 dinitrophenol: It's not just for men. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2020; 95:102987. [PMID: 33077346 DOI: 10.1016/j.drugpo.2020.102987] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 09/08/2020] [Accepted: 10/01/2020] [Indexed: 11/17/2022]
Abstract
BACKGROUND 2,4 dinitrophenol (DNP) is an organic compound which causes thermogenesis resulting in fat burning and weight loss. Although not licensed for human consumption, the globalised access to and information about this compound on the internet has prompted a renewed interest in DNP making it readily available to purchase online. Studies into user experiences remain scarce and much of the previous literature has focused on DNP use in male dominated bodybuilding communities. While online accounts of female DNP use are plentiful, this group are under researched. METHOD Ten online forums containing female discussion of DNP were identified and 440 threads subjected to a thematic analysis. Semi structured interviews were conducted with four forum moderators (all men) and one woman who reported use of DNP. RESULTS The findings highlighted diverse motivations for why women use DNP as well as differences in experiences, dosing regimens, willingness to take risks and adverse effects. Many women reported using online forums to seek advice and trusted the information they received. However, much of the discussion and protocols for use online is perpetuated by and geared towards men, with DNP seen as a 'hard core' drug that is not suitable for women. Female DNP use was frequently stigmatised because the potential risks were seen to be at odds with women's roles as mothers and caregivers. Women who used DNP were often ignored, ridiculed or seen as novice users, while men were viewed as the DNP experts. CONCLUSION This study provides an overview of female experiences of DNP use. There is a growing body of evidence as to the harms associated with this compound and there are no guaranteed 'safe' regimens that can be advocated for any potential user. Users equate deaths or ill harms from DNP with incorrect dosing or insufficient knowledge of the impact of the drug on the body. This leads women to incorrectly assume that if they are not suffering ill effects they are using DNP safely. Of key concern from this study is that within a vacuum of harm reduction advice, women are reported to be accepting DNP advice circulating in male-dominated forums and adopting the protocols of male bodybuilders with potentially fatal consequences. Furthermore, women using DNP are doing so without any 'real world' support, gender sensitive treatment pathways or interventions in place.
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20
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Yergaliyev KA, Aveling EL, Lee RM, Austin SB. Lessons for Local Policy Initiatives to Address Dietary Supplement Use Among Adolescents: A Qualitative Study of Stakeholders' Perceptions. J Adolesc Health 2020; 67:550-556. [PMID: 32387096 DOI: 10.1016/j.jadohealth.2020.03.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 02/10/2020] [Accepted: 03/07/2020] [Indexed: 11/30/2022]
Abstract
PURPOSE Weight-loss and muscle-building dietary supplements can have adverse health consequences for youth. At a time, when the Food and Drug Administration is considering increasing oversight of dietary supplements, this study aimed to explore community stakeholders' perceptions about the use of and access to such supplements among adolescents and to identify challenges and opportunities to engage stakeholders with policy initiatives to curtail youth access to supplements at the local level. METHOD We conducted 32 key informant semistructured interviews in four municipalities in Massachusetts with purposefully selected participants representing three categories of community stakeholders who could contribute to policy agenda setting at the local level: policy professionals, youth service providers, and young adults aged 18-25 years who used weight-loss or muscle-building supplements as minors. Interviews were audio-recorded, transcribed, deidentified, and analyzed using thematic analysis approach, facilitated by Dedoose software. RESULTS Community stakeholders reported wide availability and easy access to dietary supplements. Most participants were unaware of health risks. Many stakeholders did not perceive the use of these products as an issue impacting youth in their communities. The challenges identified in engaging stakeholders were competing concerns on the policy agenda, limited capacity of stakeholders, and uncertainty about who is accountable for the problem. CONCLUSION This study indicates the need for complementary, multipronged approaches at the municipal level to address the problem of weak regulation and easy access to potentially dangerous weight-loss and muscle-building supplements for youth.
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Affiliation(s)
- Kuanysh A Yergaliyev
- Division of Adolescent and Young Adult Medicine, Boston Children's Hospital, Boston, Massachusetts; SDU Business School, Suleyman Demirel University, Almaty, Kazakhstan.
| | - Emma-Louise Aveling
- Department of Health Policy and Management, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Rebekka M Lee
- Department of Social and Behavior Sciences, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - S Bryn Austin
- Division of Adolescent and Young Adult Medicine, Boston Children's Hospital, Boston, Massachusetts; Department of Social and Behavior Sciences, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
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21
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Lau NKC, Tang MHY, Ng SW, Chong YK, Chen SPL, Lee HHC, Ching CK, Mak TWL. Toxicity from illegitimate slimming agents - a 10-year case series at a tertiary toxicology laboratory in Hong Kong. Clin Toxicol (Phila) 2020; 59:426-432. [PMID: 32960101 DOI: 10.1080/15563650.2020.1822529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
CONTEXT This retrospective case-series study aims to provide an overview of the clinical, biochemical and analytical findings in patients who presented with toxicity related to the use of illegitimate slimming agents in Hong Kong from the perspective of a tertiary referral toxicology laboratory. METHODS All clinical cases referred to the Hospital Authority Toxicology Reference Laboratory, Hong Kong with clinical suspicion of illegitimate slimming agent-related toxicity between January 2008 and December 2017 were reviewed retrospectively. The use of illegitimate slimming agents included the use of (1) deregistered slimming agents, (2) drug analogues that were not registered drugs, (3) registered drugs not approved for the indication of weight reduction (whether prescribed by a doctor or not), and (4) prescription-only slimming agents without a doctor's prescription. Patients taking registered weight-reducing drugs prescribed by a doctor were excluded. Patient demographics, clinical features, relevant laboratory investigations, and toxicological findings were analyzed. RESULTS From 2008 to 2017, a total of 346 patients were analytically confirmed by our laboratory to have clinical toxicity related to the use of illegitimate slimming agents. The median age of the patients was 27 years and 92.5% of the patients were female. The most common clinical presentations included psychiatric features, sympathomimetic toxicity, hypokalemia, and abnormal thyroid function tests. Fatal or severe clinical toxicity was observed in 10% of the cases. The major classes of drugs detected on our analytical platforms were stimulants (e.g., sibutramine), laxatives (e.g., anthraquinones), diuretics (e.g., hydrochlorothiazide), and thyroid hormones (e.g., animal thyroid tissue). These illegitimate slimming agents were obtained from various sources including the Internet, over-the-counter in community pharmacy, or unspecified local sources. DISCUSSION AND CONCLUSIONS The use of slimming agents is common worldwide; apart from taking registered slimming agents prescribed by registered practitioners, many users obtain slimming agents from various illegitimate sources. The unregulated use of these drugs can be associated with significant clinical toxicity. This study provides a current landscape of illegitimate slimming agent toxicity in Hong Kong to frontline clinicians and other toxicology professionals. Collaboration between clinicians, laboratories, and government authorities would be imperative to prevent further health adversities related to the misuse of these agents.
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Affiliation(s)
- Nike Kwai Cheung Lau
- Hospital Authority Toxicology Reference Laboratory, Princess Margaret Hospital, Kowloon, Hong Kong
| | - Magdalene Huen Yin Tang
- Hospital Authority Toxicology Reference Laboratory, Princess Margaret Hospital, Kowloon, Hong Kong
| | - Sau Wah Ng
- Hospital Authority Toxicology Reference Laboratory, Princess Margaret Hospital, Kowloon, Hong Kong
| | - Yeow Kuan Chong
- Hospital Authority Toxicology Reference Laboratory, Princess Margaret Hospital, Kowloon, Hong Kong
| | - Sammy Pak Lam Chen
- Hospital Authority Toxicology Reference Laboratory, Princess Margaret Hospital, Kowloon, Hong Kong
| | - Hencher Han Chih Lee
- Hospital Authority Toxicology Reference Laboratory, Princess Margaret Hospital, Kowloon, Hong Kong
| | - Chor Kwan Ching
- Hospital Authority Toxicology Reference Laboratory, Princess Margaret Hospital, Kowloon, Hong Kong
| | - Tony Wing Lai Mak
- Hospital Authority Toxicology Reference Laboratory, Princess Margaret Hospital, Kowloon, Hong Kong
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22
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Borges CS, Silva PV, Lozano AFQ, Missassi G, Silva RF, Anselmo-Franci JA, Kempinas WG. Impact of timing of the anorexigen sibutramine administration on reproductive end-points of male rats. Basic Clin Pharmacol Toxicol 2020; 127:525-532. [PMID: 32632976 DOI: 10.1111/bcpt.13467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 06/30/2020] [Indexed: 11/28/2022]
Abstract
Sibutramine is a non-selective serotonin-norepinephrine reuptake inhibitor orally administered for weight loss. In a previous study, we showed pharmacological mechanisms involved in the reduction of sperm quality and fertility of rats exposed for 30 days to this anorexigen in the light phase of the light-dark (l/d) cycle. It is already known that rodents are nightlife animals, with higher metabolic activity during the dark phase than in the light phase of the light-dark (l/d) cycle. Thus, the present study aimed to investigate whether the deleterious effects on reproductive parameters after sibutramine administration would be enhanced after a shorter period of exposure during the dark phase of the l/d cycle. For this, adult male Wistar rats were treated with sibutramine (10 mg/kg/d) or vehicle for 15 days during the dark phase of the l/d cycle. Sibutramine treatment decreased final body and reproductive organ weights, as well as serum testosterone levels. Sperm transit time through the epididymis was accelerated, and sperm concentration and motility were diminished in the sibutramine-exposed rats. The decrease in sperm concentration was also verified in the epididymal histological sections. In conclusion, the deleterious effects of sibutramine on reproductive parameters of male rats were enhanced when the exposure occurred in the dark phase of the l/d cycle, even after a short exposure duration. Our results reinforce the impact of timing on drug therapeutic action.
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Affiliation(s)
- Cibele S Borges
- Department of Structural and Functional Biology, Institute of Biosciences, UNESP - São Paulo State University, Botucatu, Brazil
| | - Patrícia V Silva
- Department of Structural and Functional Biology, Institute of Biosciences, UNESP - São Paulo State University, Botucatu, Brazil
| | - Ana Flávia Q Lozano
- Department of Structural and Functional Biology, Institute of Biosciences, UNESP - São Paulo State University, Botucatu, Brazil
| | - Gabriela Missassi
- Department of Structural and Functional Biology, Institute of Biosciences, UNESP - São Paulo State University, Botucatu, Brazil
| | - Raquel F Silva
- Department of Structural and Functional Biology, Institute of Biosciences, UNESP - São Paulo State University, Botucatu, Brazil
| | - Janete A Anselmo-Franci
- Department of Morphology, Stomatology and Physiology, USP - University of São Paulo, Ribeirão Preto, Brazil
| | - Wilma G Kempinas
- Department of Structural and Functional Biology, Institute of Biosciences, UNESP - São Paulo State University, Botucatu, Brazil
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Hijazi MA, Shatila H, El-Lakany A, Al Rifai H, Aboul-Ela M, Naja F. Role of community pharmacists in weight management: results of a national study in Lebanon. BMC Health Serv Res 2020; 20:386. [PMID: 32381084 PMCID: PMC7204056 DOI: 10.1186/s12913-020-05258-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 04/28/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Ideally situated within the community, pharmacists can be involved in a broad range of health promotion campaigns including prevention of obesity. Limited evidence is available regarding their involvement in weight management in Lebanon, a country with escalating prevalence rate of obesity. OBJECTIVE To examine the role of community pharmacists in weight management in Lebanon, specifically studying their beliefs, current practices, services, and knowledge. METHODS Using a stratified random sampling approach, a cross sectional national survey of community pharmacists was conducted (n = 341, response rate 89%). At the pharmacy, and through a face-to-face interview, pharmacists completed a multi-component questionnaire that addressed, in addition to socio-demographic and work characteristics, their beliefs, practices, knowledge in relation to weight management. Frequencies and proportions were used to describe the data. Simple and multiple linear regression analyses were used to examine the determinants of knowledge in the study population. RESULTS Over 80% of study participants agreed that they have an important role to play in weight management. However, 50% of pharmacists did not agree that weight loss products are well regulated and 81.1% thought that companies marketing weight loss products are making false promises. The majority of pharmacists always/often sold weight loss products (84.7%) and counseled their patients for diet (86.3%) and physical activity (91.7%). Despite taking weight and height measurements, 50% of pharmacists rarely/never calculated BMI. Among the pharmacists who reported side effects of weight loss products (46.5%), the majority (91.3%) did so to the pharmaceutical company. The knowledge of pharmacists was better for the use of weight loss products as opposed to their side effects and interactions. Significant predictors of knowledge were holding a Masters/ PhD degree in Pharmacy, graduating from a university inside Lebanon, obtaining weight management training within the academic degree, and receiving inquiries about weight management in the pharmacy more than once daily. CONCLUSIONS The results of the study provided important insights on the beliefs, practices and knowledge of community pharmacists in weight management in Lebanon. These findings could be used to inform the development of future evidence-based community pharmacists led weight management service provision nationally and internationally.
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Affiliation(s)
- Mohamad Ali Hijazi
- Faculty of Pharmacy, Department of Pharmaceutical Sciences, Beirut Arab University, Beirut, Lebanon, P.O. Box: 11 5020, Beirut, Lebanon
| | - Hibeh Shatila
- Nutrition and Food Sciences Department, Faculty of Agriculture and Food Sciences American, University of Beirut, Beirut, Lebanon
| | - Abdalla El-Lakany
- Faculty of Pharmacy, Department of Pharmaceutical Sciences, Beirut Arab University, Beirut, Lebanon, P.O. Box: 11 5020, Beirut, Lebanon
| | - Hiba Al Rifai
- Nutrition and Food Sciences Department, Faculty of Agriculture and Food Sciences American, University of Beirut, Beirut, Lebanon
| | - Maha Aboul-Ela
- Faculty of Pharmacy, Department of Pharmaceutical Sciences, Beirut Arab University, Beirut, Lebanon, P.O. Box: 11 5020, Beirut, Lebanon
| | - Farah Naja
- Nutrition and Food Sciences Department, Faculty of Agriculture and Food Sciences American, University of Beirut, Beirut, Lebanon
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Ren Y, Xu M, von Deneen KM, He Y, Li G, Zheng Y, Zhang W, Li X, Han Y, Cui G, Ji G, Nie Y, Zhang Y. Acute and long-term effects of electroacupuncture alter frontal and insular cortex activity and functional connectivity during resting state. Psychiatry Res Neuroimaging 2020; 298:111047. [PMID: 32114310 DOI: 10.1016/j.pscychresns.2020.111047] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 02/06/2020] [Accepted: 02/14/2020] [Indexed: 12/17/2022]
Abstract
Electroacupuncture (EA) is a safe method for treating obesity; however, its underlying neural mechanisms remain unclear. We employed resting-state-functional-magnetic-resonance-imaging (RS-fMRI) and amplitude-of-low-frequency-fluctuation (ALFF) to investigate acute/long-term effects of EA on brain activity and resting-state-functional-connectivity (RSFC) in overweight/obesity subjects who received real/Sham stimulation. For acute effects, 26 and 19 overweight/obesity subjects were included in EA and Sham groups respectively. There were significant time effects on ALFF in the right insula (INS) and left dorsolateral-prefrontal-cortex (DLPFC) due to decreases/increases in INS/DLPFC in both groups. There were weaker positive RSFC between INS and supplementary-motor-area (SMA)/right DLPFC and weaker negative RSFC between INS and precuneus (PCUN); stronger negative RSFC between DLPFC and dorsomedial-prefrontal-cortex (DMPFC) in both groups. For long-term study, body-mass-index (BMI) had significant reduction in EA (n = 17) and Sham (15) groups; EA had higher BMI reduction than in Sham. There were significant time effects on ALFF in right ventrolateral-prefrontal-cortex (VLPFC) due to significant increases in EA group, and stronger positive RSFC between VLPFC and orbitofrontal-cortex and negative RSFC between VLPFC and left thalamus (THA) in both groups after long-term treatment. These findings suggest that changes in resting-activity and RSFC implicated in inhibitory-control, gastric-motility and satiety-control are associated with EA-induced weight-loss.
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Affiliation(s)
- Yuanyuan Ren
- Department of Acupuncture and Massage, Xi'an Traditional Chinese Medicine Hospital, Shaanxi University of Chinese Medicine, Xi'an, Shaanxi 710021, China.
| | - Mingzhu Xu
- Center for Brain Imaging, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710071, China
| | - Karen M von Deneen
- Center for Brain Imaging, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710071, China.
| | - Yang He
- Center for Brain Imaging, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710071, China
| | - Guanya Li
- Center for Brain Imaging, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710071, China
| | - Yang Zheng
- Department of Acupuncture and Massage, Xi'an Traditional Chinese Medicine Hospital, Shaanxi University of Chinese Medicine, Xi'an, Shaanxi 710021, China
| | - Wenjing Zhang
- Department of Acupuncture and Massage, Xi'an Traditional Chinese Medicine Hospital, Shaanxi University of Chinese Medicine, Xi'an, Shaanxi 710021, China
| | - Xiaoping Li
- Department of Acupuncture and Massage, Xi'an Traditional Chinese Medicine Hospital, Shaanxi University of Chinese Medicine, Xi'an, Shaanxi 710021, China
| | - Yu Han
- Department of Radiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, China
| | - Guangbin Cui
- Department of Radiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, China
| | - Gang Ji
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Yongzhan Nie
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Yi Zhang
- Center for Brain Imaging, School of Life Science and Technology, Xidian University, Xi'an, Shaanxi 710071, China.
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Dharani S, Barakh Ali SF, Afrooz H, Mohamed EM, Cook P, Khan MA, Rahman Z. Development of Methamphetamine Abuse–Deterrent Formulations Using Sucrose Acetate Isobutyrate. J Pharm Sci 2020; 109:1338-1346. [DOI: 10.1016/j.xphs.2019.12.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 11/06/2019] [Accepted: 12/03/2019] [Indexed: 12/29/2022]
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Girish P, Jayanthi M, Gitanjali B, Manikandan S, Rajan S. Screening of Weight-Loss Herbal Products for Synthetic Anti-Obesity Adulterants: A Target-Oriented Analysis by Liquid Chromatography-Tandem Mass Spectrometry. J Diet Suppl 2020; 18:92-104. [PMID: 32081055 DOI: 10.1080/19390211.2020.1723774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND The medical and social impact of being overweight, as well as the difficulty in making long-term changes in diet, physical activity, and pitfalls associated with allopathic management, lure obese individuals to over-the-counter weight-loss herbal products (WHPs). However, the safety of herbals is questionable, as reports from all over the world suggest adulteration with synthetic weight loss agents. Objective: The present study was carried out to develop a rapid and sensitive method to screen potential weight loss adulterants in WHPs. Methodology: We procured 33 licensed brands of WHPs that are available in Puducherry (India) and through web stores. Drug-free spiked herbal matrices were used for internal proficiency testing. Spiked herbal matrices and samples were extracted and centrifuged. The supernatant was collected and subjected to liquid chromatography-tandem mass spectrometry analyses. Isocratic elution was carried out by the mobile phase of methanol: 0.1% v/v formic acid (70%:30% v/v) through a C18 column. Analytes were monitored in electrospray ionization positive and negative modes, and an multiple reaction monitoring (MRM) scan was used. Results: Run time was 12 min. Intra- and inter-day precision was < 15% and recoveries were in the range of 99% to 115%. Limit of quantification (LOQ) of the analytes were in the range of 0.1 to 0.3 ng/ml. Conclusion: We developed a sensitive and rapid validated method for the detection of potential adulterants in WHPs. None of the WHPs analyzed were found to contain adulterants. The proposed method will be useful for routine monitoring. WHPs analyzed in this study were not adulterated indicating that WHPs from licensed sources are reliable.
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Affiliation(s)
- P Girish
- Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education & Research, Puducherry, India
| | - M Jayanthi
- Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education & Research, Puducherry, India
| | - B Gitanjali
- Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education & Research, Puducherry, India.,All India Institute of Medical Sciences, Bhubaneswar, India
| | - S Manikandan
- Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education & Research, Puducherry, India
| | - S Rajan
- Department of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education & Research, Puducherry, India
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Muhamad Adyab NS, Rahmat A, Abdul Kadir NAA, Jaafar H, Shukri R, Ramli NS. Mangosteen (Garcinia mangostana) flesh supplementation attenuates biochemical and morphological changes in the liver and kidney of high fat diet-induced obese rats. Altern Ther Health Med 2019; 19:344. [PMID: 31791316 PMCID: PMC6889675 DOI: 10.1186/s12906-019-2764-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 11/20/2019] [Indexed: 01/13/2023]
Abstract
Background Mangosteen is a native fruit from Southeast Asia. It is rich in phenolic compounds such as xanthones, anthocyanins and phenolic acids. Mangosteen pericarp extract showed inhibitory activity towards pancreatic lipase and may have potential use for obesity treatment. However, there is limited study on the beneficial effects of mangosteen flesh against obesity. This study aimed to investigate the effects of Garcinia mangostana flesh (GMF) on biochemical and morphological changes in the liver and kidney of high-fat diet-induced obese rats. Methods Forty healthy Sprague-Dawley rats were randomised into five groups (n = 8) with four groups were fed with high-fat diet (HFD) for 10 weeks and a control group was fed with rat chow diet. Supplementation with GMF in obese rats was continued for 7 weeks starting from week 10th after the initiation of HFD at different doses (200 mg/kg, 400 mg/kg and 600 mg/kg). The positive and negative control rats were given distilled water via oral gavage. Plasma lipid profile, antioxidant enzymes and pro-inflammatory markers were determined using commercial kits. Liver and kidney structure were defined by histology. Results The rats fed with HFD for 10 weeks increased plasma LDL-cholesterol, reduced plasma glutathione peroxidase level and had significantly higher body weight compared to normal control rats (p < 0.05). Obese rats also showed elevated level of TNF-α and IL-6 after 17 weeks of HFD. Supplementation with GMF for 7 weeks in obese rats reduced their body weight, improved lipid profile, increased total antioxidant capacity and glutathione peroxidase level and lowered plasma pro-inflammatory markers (TNF-α and IL-6) (p < 0.05). In addition, GMF supplementation attenuated the abnormalities of the liver and kidney tissue caused by high fat diet. Conclusion Taken together, the findings suggest that supplementation of Garcinia mangostana flesh may help in reducing body weight and has the potential to ameliorate the biochemical changes of the high fat diet-induced obesity in rats. Further studies on pharmacodynamic and pharmacokinetic are required before the results are translated to human.
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Henriquez AR, Snow SJ, Schladweiler MC, Miller CN, Dye JA, Ledbetter AD, Hargrove MM, Richards JE, Kodavanti UP. Exacerbation of ozone-induced pulmonary and systemic effects by β 2-adrenergic and/or glucocorticoid receptor agonist/s. Sci Rep 2019; 9:17925. [PMID: 31784596 PMCID: PMC6884479 DOI: 10.1038/s41598-019-54269-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 11/10/2019] [Indexed: 12/16/2022] Open
Abstract
Agonists of β2 adrenergic receptors (β2AR) and glucocorticoid receptors (GR) are prescribed to treat pulmonary diseases. Since ozone effects are mediated through the activation of AR and GR, we hypothesized that the treatment of rats with relevant therapeutic doses of long acting β2AR agonist (LABA; clenbuterol; CLEN) and/or GR agonist (dexamethasone; DEX) would exacerbate ozone-induced pulmonary and systemic changes. In the first study, male 12-week-old Wistar-Kyoto rats were injected intraperitoneally with vehicle (saline), CLEN (0.004 or 0.02 mg/kg), or DEX (0.02 or 0.1 mg/kg). Since dual therapy is commonly used, in the second study, rats received either saline or combined CLEN + DEX (each at 0.005 or 0.02 mg/kg) one day prior to and on both days of exposure (air or 0.8ppm ozone, 4 hr/day x 2-days). In air-exposed rats CLEN, DEX or CLEN + DEX did not induce lung injury or inflammation, however DEX and CLEN + DEX decreased circulating lymphocytes, spleen and thymus weights, increased free fatty acids (FFA) and produced hyperglycemia and glucose intolerance. Ozone exposure of vehicle-treated rats increased bronchoalveolar lavage fluid protein, albumin, neutrophils, IL-6 and TNF-α. Ozone decreased circulating lymphocytes, increased FFA, and induced hypeerglycemia and glucose intolerance. Drug treatment did not reverse ozone-induced ventillatory changes, however, lung effects (protein and albumin leakage, inflammation, and IL-6 increase) were exacerbated by CLEN and CLEN + DEX pre-treatment in a dose-dependent manner (CLEN > CLEN + DEX). Systemic effects induced by DEX and CLEN + DEX but not CLEN in air-exposed rats were analogous to and more pronounced than those induced by ozone. These data suggest that adverse air pollution effects might be exacerbated in people receiving LABA or LABA plus glucocorticoids.
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Affiliation(s)
- Andres R Henriquez
- Oak Ridge Institute for Science and Education, U.S. Department of Energy, Oak Ridge, Tennessee, United States of America
| | | | - Mette C Schladweiler
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, United States of America
| | - Colette N Miller
- Oak Ridge Institute for Science and Education, U.S. Department of Energy, Oak Ridge, Tennessee, United States of America
| | - Janice A Dye
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, United States of America
| | - Allen D Ledbetter
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, United States of America
| | - Marie M Hargrove
- Oak Ridge Institute for Science and Education, U.S. Department of Energy, Oak Ridge, Tennessee, United States of America
| | - Judy E Richards
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, United States of America
| | - Urmila P Kodavanti
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, United States of America.
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Or F, Kim Y, Simms J, Austin SB. Taking Stock of Dietary Supplements' Harmful Effects on Children, Adolescents, and Young Adults. J Adolesc Health 2019; 65:455-461. [PMID: 31176525 DOI: 10.1016/j.jadohealth.2019.03.005] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/06/2019] [Accepted: 03/07/2019] [Indexed: 12/30/2022]
Abstract
PURPOSE The aim of the study was to evaluate the relationship between supplement categories and adverse events in children, adolescents, and young adults. METHODS This is a retrospective observational study using adverse event reports between January 2004 and April 2015 in the U.S. Food and Drug Administration Adverse Event Reporting System on food and dietary supplements database. We quantified the relative risks for severe medical events of dietary supplements sold for various functions relative to vitamins among individuals aged between 0 and 25 years. Severe medical events include death, disability, life-threatening events, hospitalization, emergency room visit, and/or required intervention to prevent permanent disability. RESULTS There were 977 single-supplement-related adverse event reports affecting individuals aged between 0 and 25 years over 11 years (50.6% female; age: mean = 16.5 years, standard deviation = 7.5 years). Supplements sold for muscle building (risk ratio [RR] = 2.7; 95% confidence interval [CI] = 1.9-4.0), energy (RR = 2.6; 95% CI = 1.9-3.6), and weight loss (RR = 2.6; 95% CI = 1.9-3.4) were associated with almost three times the risk for severe medical events compared with vitamins. CONCLUSIONS Consumption of dietary supplements sold for weight loss, muscle building, and energy involved increased risks for severe medical events compared with vitamins. Proactive enforcement of regulations is needed to reduce access and consumption among children, adolescents, and young adults.
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Affiliation(s)
- Flora Or
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, Massachusetts.
| | - Yongjoo Kim
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
| | - Juliana Simms
- Harvard University Information Technology, Cambridge, Massachusetts
| | - S Bryn Austin
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, Massachusetts; Division of Adolescent/Young Adult Medicine, Boston Children's Hospital, Boston, Massachusetts
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Geraldo de Campos E, Fogarty M, Spinosa De Martinis B, Kerr Logan B. Analysis of 2,4-Dinitrophenol in Postmortem Blood and Urine by Gas Chromatography-Mass Spectrometry: Method Development and Validation and Report of Three Fatalities in the United States. J Forensic Sci 2019; 65:183-188. [PMID: 31430392 DOI: 10.1111/1556-4029.14154] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/17/2019] [Accepted: 07/17/2019] [Indexed: 11/26/2022]
Abstract
2,4-dinitrophenol (2,4-DNP) is a compound used in the early 1900s as a weight-loss drug but later prohibited due to its severe adverse effects, including death. It has however been attracting interest, due to its weight-loss properties, and appears to be re-emerging in forensic casework. As 2,4-DNP is available for use in industry and as a pesticide and easily accessible online, the dissemination of this drug can be fast. The compound exerts its effects through inhibition of ATP synthesis, and corresponding thermogenic energy loss which can be fatal. A method for qualitative and quantitative analysis of 2,4-DNP in blood and urine specimens using GC-MS with hydrogen as carrier gas is described. The method was validated and displayed acceptable performance parameters with linearity (R2 higher than 0.998), inter-assay imprecision (lower than 10.6%), intra-assay imprecision (lower than 10.7%), and extraction efficiency (92.1%). Stability of 2,4-DNP in blood and urine was studied, and the drug was stable up to 30 days refrigeration or frozen. Six cases in United States suspected to be related to 2,4-DNP were analyzed. Three cases were found to be positive for 2,4-DNP. Concentrations of 2,4-DNP were in the range of 61.6-220 mg/L in urine and <3-114 mg/L in blood. Based on our findings, we suggest that medical examiners and forensic toxicologists be aware of the reappearance of 2,4-DNP, including this compound as a target in death investigations related to weight-loss drugs.
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Affiliation(s)
- Eduardo Geraldo de Campos
- Center for Forensic Science Research and Education, 2300 Stratford Avenue, Willow Grove, PA.,Faculdade de Filosofia, Ciencias e Letras de Ribeirao Preto, University of Sao Paulo, 3900 Bandeirantes Avenue, Ribeirao Preto, Brazil
| | - Melissa Fogarty
- Center for Forensic Science Research and Education, 2300 Stratford Avenue, Willow Grove, PA
| | - Bruno Spinosa De Martinis
- Faculdade de Filosofia, Ciencias e Letras de Ribeirao Preto, University of Sao Paulo, 3900 Bandeirantes Avenue, Ribeirao Preto, Brazil
| | - Barry Kerr Logan
- Center for Forensic Science Research and Education, 2300 Stratford Avenue, Willow Grove, PA.,NMS Labs, 200 Welsh Road, Horsham, PA
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Ben Lamine J, Boujbiha MA, Dahane S, Cherifa AB, Khlifi A, Chahdoura H, Yakoubi MT, Ferchichi S, El Ayeb N, Achour L. α-Amylase and α-glucosidase inhibitor effects and pancreatic response to diabetes mellitus on Wistar rats of Ephedra alata areal part decoction with immunohistochemical analyses. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:9739-9754. [PMID: 30729433 DOI: 10.1007/s11356-019-04339-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Accepted: 01/22/2019] [Indexed: 06/09/2023]
Abstract
Ephedra alata, known as a medicinal plant in China, was used in this study as aqueous extract from aerial parts, for diabetes mellitus treatment. This study was carried out on two parts, in vitro, we tested the effect of the studied extract on the inhibition of α-glucosidase and α-amylase activities, and in vivo on Wistar male rats receiving alloxan intraperitoneally at a rate of 125 mg/kg. Extract (100, 200, and 300 mg/kg of body weight) was administrated for 28 days by oral gavage. Blood glucose, amylase, lipase, and lipid profile level were determined. Oxidative stress was evaluated by enzymatic activities of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx), and by estimation of lipid peroxidation and protein carbonyl (PC) level. Histopathological changes in pancreas were investigated under photonic microscopy using immunohistochemical procedure. Our findings showed that aqueous extract inhibited in vitro both α-glucosidase and α-amylase activities and its use in vivo at 300 mg/kg of body weight restored pancreas weight and weight gain, ameliorated significantly (p ˂ 0.05) biochemical parameters; it prevented the increase in lipid and protein oxidation and the decrease in enzymatic and non-enzymatic defense system. Histological study of treated animals showed a comparable healed regeneration of beta cells.
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Affiliation(s)
- Jihene Ben Lamine
- Institut Supérieur de Biotechnologie de Monastir, Laboratoire de Recherche : Bioressources, Biologie Intégrative & Valorisation, Université de Monastir, LR14ES06, BP 74, 5000, Monastir, Tunisia.
- Faculté des Sciences de Tunis, Université de Tunis El Manar, 2092, Tunis, Tunisia.
| | - Mouhamed Ali Boujbiha
- Institut Supérieur de Biotechnologie de Monastir, Laboratoire de Recherche : Bioressources, Biologie Intégrative & Valorisation, Université de Monastir, LR14ES06, BP 74, 5000, Monastir, Tunisia
| | - Sabra Dahane
- Institut Supérieur de Biotechnologie de Monastir, Laboratoire de Recherche : Bioressources, Biologie Intégrative & Valorisation, Université de Monastir, LR14ES06, BP 74, 5000, Monastir, Tunisia
| | - Amal Ben Cherifa
- Institut Supérieur de Biotechnologie de Monastir, Laboratoire de Recherche : Bioressources, Biologie Intégrative & Valorisation, Université de Monastir, LR14ES06, BP 74, 5000, Monastir, Tunisia
- Faculté des Sciences de Gabes, Université de Gabes, Gabes, Tunisia
| | - Aida Khlifi
- Institut Supérieur de Biotechnologie de Monastir, Laboratoire de Recherche : Bioressources, Biologie Intégrative & Valorisation, Université de Monastir, LR14ES06, BP 74, 5000, Monastir, Tunisia
| | - Hassiba Chahdoura
- Institut Supérieur de Biotechnologie de Monastir, Laboratoire de Recherche : Bioressources, Biologie Intégrative & Valorisation, Université de Monastir, LR14ES06, BP 74, 5000, Monastir, Tunisia
| | - Mouhamed Taher Yakoubi
- Laboratoire d'anatomie et pathologie, Centre Hôpital Universitaire Farhat Hached, Sousse, Tunisia
| | - Salima Ferchichi
- Laboratoire de biochimie, Centre Hôpital Universitaire Farhat Hached, Sousse, Tunisia
| | - Nacer El Ayeb
- Institut Supérieur de Biotechnologie de Monastir, Laboratoire de Recherche : Bioressources, Biologie Intégrative & Valorisation, Université de Monastir, LR14ES06, BP 74, 5000, Monastir, Tunisia
| | - Lotfi Achour
- Institut Supérieur de Biotechnologie de Monastir, Laboratoire de Recherche : Bioressources, Biologie Intégrative & Valorisation, Université de Monastir, LR14ES06, BP 74, 5000, Monastir, Tunisia
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Barrea L, Altieri B, Polese B, De Conno B, Muscogiuri G, Colao A, Savastano S. Nutritionist and obesity: brief overview on efficacy, safety, and drug interactions of the main weight-loss dietary supplements. INTERNATIONAL JOURNAL OF OBESITY SUPPLEMENTS 2019; 9:32-49. [PMID: 31391923 PMCID: PMC6683127 DOI: 10.1038/s41367-019-0007-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Over the past 20 years the use of dietary supplements as adjuvant therapy for weight loss gained growing favor among consumers and dietician-nutritionists, with the subsequent astounding increase in health costs. Despite the reassuring label of natural remedy for losing weight, dietary supplements contain a wide variety of ingredients on which available information is rather scanty and scientifically incomplete. Currently, there is little evidence that weight-loss supplements offer effective aids to reduce weight and meet criteria for recommended use. Robust, randomized, placebo-controlled studies to provide clear-cut scientific evidence of their efficacy and potential side effects in clinical practice are still lacking. Understanding the evidence for the efficacy, safety, and quality of these supplements among nutritionists and physicians is critical to counsel patients appropriately, especially considering the risk of serious adverse effects and interference with concomitant therapies. Detailed information on the efficacy and safety of the most commonly used weight-loss dietary supplements has been recently published by the National Institutes of Health (NIH). However, in this report the thorny issue that may result from drug interactions with weight-loss dietary supplements has been not sufficiently addressed. The aim of this review was to provide a synthetic, evidence-based report on efficacy and safety of the most commonly used ingredients in dietary supplements marketed for weight loss, particularly focusing on their possible drug interactions.
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Affiliation(s)
- Luigi Barrea
- Unit of Endocrinology, Dipartimento di Medicina Clinica e Chirurgia, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
| | - Barbara Altieri
- Unit of Endocrinology, Dipartimento di Medicina Clinica e Chirurgia, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
| | - Barbara Polese
- Unit of Endocrinology, Dipartimento di Medicina Clinica e Chirurgia, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
| | - Barbara De Conno
- Unit of Endocrinology, Dipartimento di Medicina Clinica e Chirurgia, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
| | - Giovanna Muscogiuri
- Unit of Endocrinology, Dipartimento di Medicina Clinica e Chirurgia, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
| | - Annamaria Colao
- Unit of Endocrinology, Dipartimento di Medicina Clinica e Chirurgia, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
| | - Silvia Savastano
- Unit of Endocrinology, Dipartimento di Medicina Clinica e Chirurgia, Federico II University Medical School of Naples, Via Sergio Pansini 5, 80131 Naples, Italy
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Woolum J, Mancuso N, Rutter PW, Baum RA, Akpunonu P. Chomping at the Bit: A Descriptive Report on Pediatric Clenbuterol Ingestion. J Pharm Pract 2019; 33:386-389. [PMID: 30669920 DOI: 10.1177/0897190018823114] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Clenbuterol hydrochloride is a selective beta-2 adrenergic agonist with uses in both humans and animals. Ingestions occurring within the United States are generally due to incidental ingestion of a veterinary product, use as a cutting agent for illicit substances, or illegal use for performance-enhancing purposes. CASE REPORT A four-and-a-half year-old male presented approximately two-and-a-half hours after an accidental ingestion of an unknown quantity of clenbuterol. Initial laboratory results and electrocardiogram were remarkable for hyperglycemia, hypokalemia, and hypophosphatemia, with an electrocardiogram demonstrating sinus tachycardia. Heart rate ranged from 126 to 147 beats per minute while other vitals remained within normal limits. The patient was observed for 24 hours and discharged with normalized vital signs, laboratory results, and electrocardiogram. DISCUSSION Clenbuterol hydrochloride is a beta-agonist with high potency, extended half-life, and bioavailability of 70% to 80%. Tachycardia occurs due to beta-1 receptor stimulation, as well as a homeostatic reflex to peripheral vasodilation. Hyperglycemia is not uncommon in exposures and intracellular shifting of potassium causes hypokalemia. Treatment is primarily supportive in nature, with hemodynamic management representing the primary focus of initial triage.
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Affiliation(s)
- Jordan Woolum
- University of Kentucky HealthCare, Lexington, KY, USA
| | - Nicholas Mancuso
- Department of Emergency Medicine, University of Kentucky-Chandler Medical Center, Lexington, KY, USA
| | | | - Regan A Baum
- University of Kentucky HealthCare, Lexington, KY, USA
| | - Peter Akpunonu
- Department of Emergency Medicine, University of Kentucky-Chandler Medical Center, Lexington, KY, USA
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Risks associated with fat burners: A toxicological perspective. Food Chem Toxicol 2019; 123:205-224. [DOI: 10.1016/j.fct.2018.10.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 10/16/2018] [Accepted: 10/22/2018] [Indexed: 12/18/2022]
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Authors reply. Prev Med 2018; 116:225. [PMID: 30179631 DOI: 10.1016/j.ypmed.2018.08.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 08/27/2018] [Indexed: 11/20/2022]
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Hashimoto O, Funaba M, Sekiyama K, Doi S, Shindo D, Satoh R, Itoi H, Oiwa H, Morita M, Suzuki C, Sugiyama M, Yamakawa N, Takada H, Matsumura S, Inoue K, Oyadomari S, Sugino H, Kurisaki A. Activin E Controls Energy Homeostasis in Both Brown and White Adipose Tissues as a Hepatokine. Cell Rep 2018; 25:1193-1203. [DOI: 10.1016/j.celrep.2018.10.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 06/12/2018] [Accepted: 09/28/2018] [Indexed: 02/08/2023] Open
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Austin SB, Liu SH, Tefft N. Could a tax on unhealthy products sold for weight loss reduce consumer use? A novel estimation of potential taxation effects. Prev Med 2018; 114:39-46. [PMID: 29842920 DOI: 10.1016/j.ypmed.2018.05.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 05/04/2018] [Accepted: 05/22/2018] [Indexed: 01/31/2023]
Abstract
Abuse of widely available, over-the-counter (OTC) drugs and supplements such as diet pills, laxatives, and diuretics by adolescents for weight control is well-documented, yet manufacturers and retailers can sell them to minors without restriction. The aim of our study was to estimate the effect of added taxation of OTC drugs and dietary supplements sold for weight loss on household purchases of these products. With data from 60,538 U.S. households in the 2012 waves of the Nielsen/IRi National Consumer Panel (NCP) and the Nielsen/IRi Retail Scanner (NRS) datasets, we conducted analyses in 2017 to tally annual quantities and expenditures on OTC drugs or dietary supplements making weight-loss, cleanse/detox, or diuretic claims. We estimated the percent reduction in household purchases due to a simulated 20% added tax on each category. Among the 14,151 households reporting at least one purchase in the three claims categories, a 20% higher average price of weight-loss products was associated with a 5.2% lower purchases of those products. Among households with children ages 12 to 17 years old present, purchases were 17.5% lower, and among households with a daughter present, purchases were 10.3% lower. Taxation may be an effective public health strategy to reduce purchasing of potentially dangerous OTC drugs and supplements sold for weight loss, especially for households that include children ages 12-17 years old or a daughter.
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Affiliation(s)
- S Bryn Austin
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Division of Adolescent and Young Adult Medicine, Boston Children's Hospital, Boston, MA, USA; Strategic Training Initiative for the Prevention of Eating Disorders based at Harvard T.H. Chan School of Public Health and Boston Children's Hospital, Boston, MA, USA.
| | - Selena Hua Liu
- Strategic Training Initiative for the Prevention of Eating Disorders based at Harvard T.H. Chan School of Public Health and Boston Children's Hospital, Boston, MA, USA; Department of Nutrition, Simmons College, Boston, MA, USA
| | - Nathan Tefft
- Department of Economics, Bates College, Lewiston, ME, USA
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Abstract
The biological basis of human aging remains one of the greatest unanswered scientific questions. Increasing evidence, however, points to a role for alterations in mitochondrial function as a potential central regulator of the aging process. Here, we focus primarily on three aspects of mitochondrial biology that link this ancient organelle to how and why we age. In particular, we discuss the role of mitochondria in regulating the innate immune system, the mechanisms linking mitochondrial quality control to age-dependent pathology, and the possibility that mitochondrial-to-nuclear signaling might regulate the rate of aging.
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Affiliation(s)
- Ji Yong Jang
- Aging Institute, University of Pittsburgh and University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Arnon Blum
- Baruch Padeh Medical Center, Bar-Ilan University, Ramat Gan, Israel
| | - Jie Liu
- Aging Institute, University of Pittsburgh and University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Toren Finkel
- Aging Institute, University of Pittsburgh and University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
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39
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Palandri A, Martin E, Russi M, Rera M, Tricoire H, Monnier V. Identification of cardioprotective drugs by medium-scale in vivo pharmacological screening on a Drosophila cardiac model of Friedreich's ataxia. Dis Model Mech 2018; 11:dmm033811. [PMID: 29898895 PMCID: PMC6078405 DOI: 10.1242/dmm.033811] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 06/06/2018] [Indexed: 12/30/2022] Open
Abstract
Friedreich's ataxia (FA) is caused by reduced levels of frataxin, a highly conserved mitochondrial protein. There is currently no effective treatment for this disease, which is characterized by progressive neurodegeneration and cardiomyopathy, the latter being the most common cause of death in patients. We previously developed a Drosophila melanogaster cardiac model of FA, in which the fly frataxin is inactivated specifically in the heart, leading to heart dilatation and impaired systolic function. Methylene Blue (MB) was highly efficient to prevent these cardiac dysfunctions. Here, we used this model to screen in vivo the Prestwick Chemical Library, comprising 1280 compounds. Eleven drugs significantly reduced the cardiac dilatation, some of which may possibly lead to therapeutic applications in the future. The one with the strongest protective effects was paclitaxel, a microtubule-stabilizing drug. In parallel, we characterized the histological defects induced by frataxin deficiency in cardiomyocytes and observed strong sarcomere alterations with loss of striation of actin fibers, along with full disruption of the microtubule network. Paclitaxel and MB both improved these structural defects. Therefore, we propose that frataxin inactivation induces cardiac dysfunction through impaired sarcomere assembly or renewal due to microtubule destabilization, without excluding additional mechanisms. This study is the first drug screening of this extent performed in vivo on a Drosophila model of cardiac disease. Thus, it also brings the proof of concept that cardiac functional imaging in adult Drosophila flies is usable for medium-scale in vivo pharmacological screening, with potent identification of cardioprotective drugs in various contexts of cardiac diseases.
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Affiliation(s)
- Amandine Palandri
- Université Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative (BFA) UMR8251 CNRS, 75205, Paris Cedex 13, France
| | - Elodie Martin
- Université Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative (BFA) UMR8251 CNRS, 75205, Paris Cedex 13, France
| | - Maria Russi
- Université Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative (BFA) UMR8251 CNRS, 75205, Paris Cedex 13, France
| | - Michael Rera
- Université Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative (BFA) UMR8251 CNRS, 75205, Paris Cedex 13, France
| | - Hervé Tricoire
- Université Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative (BFA) UMR8251 CNRS, 75205, Paris Cedex 13, France
| | - Véronique Monnier
- Université Paris Diderot, Sorbonne Paris Cité, Unité de Biologie Fonctionnelle et Adaptative (BFA) UMR8251 CNRS, 75205, Paris Cedex 13, France
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40
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Christopoulos G, DeSimone CV, Anavekar NS. 30-Year-Old Man With Outside-of-Hospital Cardiac Arrest. Mayo Clin Proc 2018; 93:e69-e73. [PMID: 29550049 DOI: 10.1016/j.mayocp.2017.08.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 08/17/2017] [Accepted: 08/22/2017] [Indexed: 10/17/2022]
Affiliation(s)
- Georgios Christopoulos
- Resident in Internal Medicine, Mayo Clinic School of Graduate Medical Education, Rochester, MN
| | - Christopher V DeSimone
- Resident in Cardiovascular Medicine, Mayo Clinic School of Graduate Medical Education, Rochester, MN
| | - Nandan S Anavekar
- Advisor to residents and Consultant in Cardiovascular Diseases, Mayo Clinic, Rochester, MN.
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41
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Kerpel dos Santos M, Gleco E, Davidson JT, Jackson GP, Pereira Limberger R, Arroyo LE. DART-MS/MS screening for the determination of 1,3-dimethylamylamine and undeclared stimulants in seized dietary supplements from Brazil. Forensic Chem 2018. [DOI: 10.1016/j.forc.2018.03.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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42
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Milano G, Chiappini S, Mattioli F, Martelli A, Schifano F. β-2 Agonists as Misusing Drugs? Assessment of both Clenbuterol- and Salbutamol-related European Medicines Agency Pharmacovigilance Database Reports. Basic Clin Pharmacol Toxicol 2018; 123:182-187. [DOI: 10.1111/bcpt.12991] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 02/12/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Giulia Milano
- Department of Internal Medicine, Clinical Pharmacology and Toxicology Unit; University of Genoa; Genoa Italy
| | - Stefania Chiappini
- Psychopharmacology, Drug Misuse, and Novel Psychoactive Substances Research Unit; School of Life and Medical Sciences; University of Hertfordshire; Hatfield UK
- Casa di Cura Villa Rosa; Viterbo Italy
| | - Francesca Mattioli
- Department of Internal Medicine, Clinical Pharmacology and Toxicology Unit; University of Genoa; Genoa Italy
| | - Antonietta Martelli
- Department of Internal Medicine, Clinical Pharmacology and Toxicology Unit; University of Genoa; Genoa Italy
| | - Fabrizio Schifano
- Psychopharmacology, Drug Misuse, and Novel Psychoactive Substances Research Unit; School of Life and Medical Sciences; University of Hertfordshire; Hatfield UK
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43
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Braun K, Oeckl J, Westermeier J, Li Y, Klingenspor M. Non-adrenergic control of lipolysis and thermogenesis in adipose tissues. ACTA ACUST UNITED AC 2018. [PMID: 29514884 DOI: 10.1242/jeb.165381] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The enormous plasticity of adipose tissues, to rapidly adapt to altered physiological states of energy demand, is under neuronal and endocrine control. In energy balance, lipolysis of triacylglycerols and re-esterification of free fatty acids are opposing processes operating in parallel at identical rates, thus allowing a more dynamic transition from anabolism to catabolism, and vice versa. In response to alterations in the state of energy balance, one of the two processes predominates, enabling the efficient mobilization or storage of energy in a negative or positive energy balance, respectively. The release of noradrenaline from the sympathetic nervous system activates lipolysis in a depot-specific manner by initiating the canonical adrenergic receptor-Gs-protein-adenylyl cyclase-cyclic adenosine monophosphate-protein kinase A pathway, targeting proteins of the lipolytic machinery associated with the interface of the lipid droplets. In brown and brite adipocytes, lipolysis stimulated by this signaling pathway is a prerequisite for the activation of non-shivering thermogenesis. Free fatty acids released by lipolysis are direct activators of uncoupling protein 1-mediated leak respiration. Thus, pro- and anti-lipolytic mediators are bona fide modulators of thermogenesis in brown and brite adipocytes. In this Review, we discuss adrenergic and non-adrenergic mechanisms controlling lipolysis and thermogenesis and provide a comprehensive overview of pro- and anti-lipolytic mediators.
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Affiliation(s)
- Katharina Braun
- Chair of Molecular Nutritional Medicine, Technical University of Munich, TUM School of Life Sciences Weihenstephan, Gregor-Mendel-Str. 2, D-85354 Freising, Germany.,EKFZ - Else Kröner-Fresenius Center for Nutritional Medicine, Technical University of Munich, Gregor-Mendel-Str. 2, D-85354 Freising, Germany.,ZIEL - Institute for Food & Health, Technical University of Munich, Gregor-Mendel-Str. 2, D-85354 Freising, Germany
| | - Josef Oeckl
- Chair of Molecular Nutritional Medicine, Technical University of Munich, TUM School of Life Sciences Weihenstephan, Gregor-Mendel-Str. 2, D-85354 Freising, Germany.,EKFZ - Else Kröner-Fresenius Center for Nutritional Medicine, Technical University of Munich, Gregor-Mendel-Str. 2, D-85354 Freising, Germany.,ZIEL - Institute for Food & Health, Technical University of Munich, Gregor-Mendel-Str. 2, D-85354 Freising, Germany
| | - Julia Westermeier
- Chair of Molecular Nutritional Medicine, Technical University of Munich, TUM School of Life Sciences Weihenstephan, Gregor-Mendel-Str. 2, D-85354 Freising, Germany.,EKFZ - Else Kröner-Fresenius Center for Nutritional Medicine, Technical University of Munich, Gregor-Mendel-Str. 2, D-85354 Freising, Germany
| | - Yongguo Li
- Chair of Molecular Nutritional Medicine, Technical University of Munich, TUM School of Life Sciences Weihenstephan, Gregor-Mendel-Str. 2, D-85354 Freising, Germany.,EKFZ - Else Kröner-Fresenius Center for Nutritional Medicine, Technical University of Munich, Gregor-Mendel-Str. 2, D-85354 Freising, Germany
| | - Martin Klingenspor
- Chair of Molecular Nutritional Medicine, Technical University of Munich, TUM School of Life Sciences Weihenstephan, Gregor-Mendel-Str. 2, D-85354 Freising, Germany .,EKFZ - Else Kröner-Fresenius Center for Nutritional Medicine, Technical University of Munich, Gregor-Mendel-Str. 2, D-85354 Freising, Germany.,ZIEL - Institute for Food & Health, Technical University of Munich, Gregor-Mendel-Str. 2, D-85354 Freising, Germany
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44
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Griswold MK, Blohm E, Cross R, Boyer EW, Carey JL. Unsuspected Clenbuterol Toxicity in a Patient Using Intramuscular Testosterone. Clin Pract Cases Emerg Med 2017. [PMID: 29849287 DOI: 10.5811/2fcpcem.2017.2.33318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/27/2023] Open
Abstract
Clenbuterol is a beta-agonist that has been abused by fitness-oriented individuals for muscle growth and weight loss. We report a case of a 46-year-old man who presented tachycardic, hypokalemic, and hyperglycemic after injecting testosterone obtained from Brazil. He developed refractory hypotension and was started on an esmolol infusion for suspected beta-agonist toxicity. Laboratory analysis showed a detectable clenbuterol serum concentration. Analysis of an unopened ampule contained boldenone undecylenate, clenbuterol, and vitamin E. This case illustrates a novel exposure that caused beta-agonist toxicity and was treated successfully with rapid-onset beta blocker.
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Affiliation(s)
- Matthew K Griswold
- University of Massachusetts School of Medicine, Department of Emergency Medicine, Division of Toxicology, Worcester, Massachusetts
| | - Eike Blohm
- University of Massachusetts School of Medicine, Department of Emergency Medicine, Division of Toxicology, Worcester, Massachusetts
| | - Roderick Cross
- University of Massachusetts School of Medicine, Department of Emergency Medicine, Worcester, Massachusetts
| | - Edward W Boyer
- University of Massachusetts School of Medicine, Department of Emergency Medicine, Division of Toxicology, Worcester, Massachusetts
| | - Jennifer L Carey
- University of Massachusetts School of Medicine, Department of Emergency Medicine, Division of Toxicology, Worcester, Massachusetts
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45
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Affiliation(s)
- Nik Žlak
- Department of Internal medicine, University Medical Centre Ljubljana, General hospital Trbovlje, Trbovlje, Slovenia
| | - Daniel Košuta
- Department of Internal medicine, University Medical Centre Ljubljana, General hospital Trbovlje, Trbovlje, Slovenia
| | - Maja Potisek
- Department of Internal medicine, University Medical Centre Ljubljana, General hospital Trbovlje, Trbovlje, Slovenia
| | - Živojin Stevanović
- Department of Internal medicine, University Medical Centre Ljubljana, General hospital Trbovlje, Trbovlje, Slovenia
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46
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Goralczyk A, van Vijven M, Koch M, Badowski C, Yassin MS, Toh SA, Shabbir A, Franco-Obregón A, Raghunath M. TRP channels in brown and white adipogenesis from human progenitors: new therapeutic targets and the caveats associated with the common antibiotic, streptomycin. FASEB J 2017; 31:3251-3266. [PMID: 28416581 DOI: 10.1096/fj.201601081rr] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 03/27/2017] [Indexed: 01/14/2023]
Abstract
Transient receptor potential (TRP) channels are polymodal cell sensors responding to diverse stimuli and widely implicated in the developmental programs of numerous tissues. The evidence for an involvement of TRP family members in adipogenesis, however, is scant. We present the first comprehensive expression profile of all known 27 human TRP genes in mesenchymal progenitors cells during white or brown adipogenesis. Using positive trilineage differentiation as an exclusion criterion, TRP polycystic (P)3, and TPR melastatin (M)8 were found to be uniquely adipospecific. Knockdown of TRPP3 repressed the expression of the brown fat signature genes uncoupling protein (UCP)-1 and peroxisome proliferator-activated receptor γ coactivator (PGC)-1α as well as attenuated forskolin-stimulated uncoupled respiration. However, indices of generalized adipogenesis, such as lipid droplet morphology and fatty acid binding protein (FAPB)-4 expression, were not affected, indicating a principal mitochondrial role of TRPP3. Conversely, activating TRPM8 with menthol up-regulated UCP-1 expression and augmented uncoupled respiration predominantly in white adipocytes (browning), whereas streptomycin antagonized TRPM8-mediated calcium entry, downregulated UCP-1 expression, and mitigated uncoupled respiration; menthol was less capable of augmenting uncoupled respiration (thermogenesis) in brown adipocytes. TRPP3 and TRPM8 hence appear to be involved in the priming of mitochondria to perform uncoupled respiration downstream of adenylate cyclase. Our results also underscore the developmental caveats of using antibiotics in adipogenic studies.-Goralczyk, A., van Vijven, M., Koch, M., Badowski, C., Yassin, M. S., Toh, S.-A., Shabbir, A., Franco-Obregón, A., Raghunath, M. TRP channels in brown and white adipogenesis from human progenitors: new therapeutic targets and the caveats associated with the common antibiotic, streptomycin.
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Affiliation(s)
- Anna Goralczyk
- Department of Biomedical Engineering, National University of Singapore, Singapore.,Life Science Institute, National University of Singapore, Singapore
| | - Marc van Vijven
- Life Science Institute, National University of Singapore, Singapore.,Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.,Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Mathilde Koch
- Life Science Institute, National University of Singapore, Singapore.,Department of Biology, Ecole Polytechnique, Palaiseau, France
| | - Cedric Badowski
- Institute of Medical Biology, Agency for Science, Technology, and Research (A*STAR), Singapore
| | - M Shabeer Yassin
- Department of Medicine, National University of Singapore, Singapore
| | - Sue-Anne Toh
- Department of Medicine, National University of Singapore, Singapore.,Department of Medicine, National University Health System, Singapore.,Duke-NUS Graduate Medical School, Singapore.,Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Asim Shabbir
- Department of Surgery, National University Hospital, Singapore; and
| | - Alfredo Franco-Obregón
- Department of Surgery, National University Hospital, Singapore; and .,BioIonic Currents Electromagnetic Pulsing Systems Laboratory, Department of Surgery, National University of Singapore, Singapore
| | - Michael Raghunath
- Department of Biomedical Engineering, National University of Singapore, Singapore .,Life Science Institute, National University of Singapore, Singapore.,Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.,Center for Cell Biology and Tissue Engineering, Competence Center for Tissue Engineering (TEDD), Institute of Chemistry and Biotechnology, Zurich University of Applied Sciences, Wädenswil, Switzerland
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47
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Austin SB, Yu K, Tran A, Mayer B. Research-to-policy translation for prevention of disordered weight and shape control behaviors: A case example targeting dietary supplements sold for weight loss and muscle building. Eat Behav 2017; 25:9-14. [PMID: 27118415 DOI: 10.1016/j.eatbeh.2016.03.037] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 02/23/2016] [Accepted: 03/30/2016] [Indexed: 11/29/2022]
Abstract
New approaches to universal eating disorders prevention and interventions targeting macro-environmental change are greatly needed, and research-to-policy translation efforts hold promise for advancing both of these goals. This paper describes as a policy-translation case example an academic-community-government partnership of the Strategic Training Initiative for the Prevention of Eating Disorders, Multi-Service Eating Disorders Association, and the office of Massachusetts Representative Kay Khan, all based in Massachusetts, USA. The partnership's research-to-policy translation project focused on dietary supplements sold for weight loss and muscle building, which have been linked with serious injury and death in consumers. Youth and people of all ages with eating disorders and body dysmorphic disorder may be especially vulnerable to use these products due to deceptive promises of fast and safe weight loss and muscle gain. The research-to-policy translation project was informed by a triggers-to-action framework to establish the evidentiary base of harm to consumers, operationalize policy solutions to mitigate harm through legislation, and generate political will to support action through legislation introduced in the Massachusetts legislature to restrict sales of weight-loss and muscle-building dietary supplements. The paper concludes with lessons learned from this unique policy translation effort for the prevention of disordered weight and shape control behaviors and offers recommendations for next steps for the field to advance research and practice for universal, macro-environmentally targeted prevention.
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Affiliation(s)
- S Bryn Austin
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Division of Adolescent and Young Adult Medicine, Boston Children's Hospital, Boston, MA, USA.
| | - Kimberly Yu
- Division of Adolescent and Young Adult Medicine, Boston Children's Hospital, Boston, MA, USA
| | - Alvin Tran
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Beth Mayer
- Multi-Service Eating Disorders Association, Newton, MA, USA
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48
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Lee Y, Heo G, Lee KM, Kim AH, Chung KW, Im E, Chung HY, Lee J. Neuroprotective effects of 2,4-dinitrophenol in an acute model of Parkinson's disease. Brain Res 2017; 1663:184-193. [PMID: 28322751 DOI: 10.1016/j.brainres.2017.03.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 02/24/2017] [Accepted: 03/16/2017] [Indexed: 01/09/2023]
Abstract
Neurons depend on mitochondria for homeostasis and survival, and thus, mitochondrial dysfunction has been implicated in neurodegenerative diseases, including Parkinson's disease (PD). Increasing evidence indicates the mitochondrial uncoupler, 2,4-dinitrophenol (DNP), protects neurons against neurodegeneration and enhances neural plasticity. Here, the authors evaluated the protective effects of intraperitoneally (i.p.) administered low dose DNP in an acute mouse model of PD. Mice were administered DNP (1 or 5mg/kg) for 12 consecutive days, and then on day 13, MPTP (20mg/kg, i.p.) was administered four times (with 2h intervals between injections) to induce PD. It was found that MPTP-induced motor dysfunction was ameliorated in the DNP-treated mice versus vehicle-treated controls. Additionally, DNP effectively attenuated dopaminergic neuronal loss observed in MPTP treated mice. Moreover, in primary cultured neurons, DNP at 10μM, but not at 100μM, prevented MPP+-induced cell death and mitochondrial membrane potential (MMP) reduction. In addition, DNP was observed to cause the nuclear translocation of Nrf2 in primary neurons. Taken together, these findings of the present study suggest that DNP protects dopaminergic neurons against neurodegeneration and maintains MMP integrity in PD by activating adaptive stress responses.
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Affiliation(s)
- Yujeong Lee
- Department of Pharmacy, College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention, Pusan National University, Busan 609-735, Republic of Korea
| | - Gwangbeom Heo
- Department of Pharmacy, College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention, Pusan National University, Busan 609-735, Republic of Korea
| | - Kyung Moon Lee
- Department of Pharmacy, College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention, Pusan National University, Busan 609-735, Republic of Korea
| | - Ah Hyun Kim
- Department of Pharmacy, College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention, Pusan National University, Busan 609-735, Republic of Korea
| | - Ki Wung Chung
- Department of Pharmacy, College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention, Pusan National University, Busan 609-735, Republic of Korea
| | - Eunok Im
- Department of Pharmacy, College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention, Pusan National University, Busan 609-735, Republic of Korea
| | - Hae Young Chung
- Department of Pharmacy, College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention, Pusan National University, Busan 609-735, Republic of Korea
| | - Jaewon Lee
- Department of Pharmacy, College of Pharmacy, Molecular Inflammation Research Center for Aging Intervention, Pusan National University, Busan 609-735, Republic of Korea.
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49
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den Hartigh LJ, Wang S, Goodspeed L, Wietecha T, Houston B, Omer M, Ogimoto K, Subramanian S, Gowda GAN, O’Brien KD, Kaiyala KJ, Morton GJ, Chait A. Metabolically distinct weight loss by 10,12 CLA and caloric restriction highlight the importance of subcutaneous white adipose tissue for glucose homeostasis in mice. PLoS One 2017; 12:e0172912. [PMID: 28245284 PMCID: PMC5330530 DOI: 10.1371/journal.pone.0172912] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 02/10/2017] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Widely used as a weight loss supplement, trans-10,cis-12 conjugated linoleic acid (10,12 CLA) promotes fat loss in obese mice and humans, but has also been associated with insulin resistance. OBJECTIVE We therefore sought to directly compare weight loss by 10,12 CLA versus caloric restriction (CR, 15-25%), an acceptable healthy method of weight loss, to determine how 10,12 CLA-mediated weight loss fails to improve glucose metabolism. METHODS Obese mice with characteristics of human metabolic syndrome were either supplemented with 10,12 CLA or subjected to CR to promote weight loss. Metabolic endpoints such as energy expenditure, glucose and insulin tolerance testing, and trunk fat distribution were measured. RESULTS By design, 10,12 CLA and CR caused equivalent weight loss, with greater fat loss by 10,12 CLA accompanied by increased energy expenditure, reduced respiratory quotient, increased fat oxidation, accumulation of alternatively activated macrophages, and browning of subcutaneous white adipose tissue (WAT). Moreover, 10,12 CLA-supplemented mice better defended their body temperature against a cold challenge. However, 10,12 CLA concurrently induced the detrimental loss of subcutaneous WAT without reducing visceral WAT, promoted reduced plasma and WAT adipokine levels, worsened hepatic steatosis, and failed to improve glucose metabolism. Obese mice undergoing CR were protected from subcutaneous-specific fat loss, had improved hepatic steatosis, and subsequently showed the expected improvements in WAT adipokines, glucose metabolism and WAT inflammation. CONCLUSIONS These results suggest that 10,12 CLA mediates the preferential loss of subcutaneous fat that likely contributes to hepatic steatosis and maintained insulin resistance, despite significant weight loss and WAT browning in mice. Collectively, we have shown that weight loss due to 10,12 CLA supplementation or CR results in dramatically different metabolic phenotypes, with the latter promoting a healthier form of weight loss.
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Affiliation(s)
- Laura J. den Hartigh
- Department of Medicine, Metabolism, University of Washington, Seattle, Washington, United States of America
| | - Shari Wang
- Department of Medicine, Metabolism, University of Washington, Seattle, Washington, United States of America
| | - Leela Goodspeed
- Department of Medicine, Metabolism, University of Washington, Seattle, Washington, United States of America
| | - Tomasz Wietecha
- Department of Medicine, Cardiology, University of Washington, Seattle, Washington, United States of America
| | - Barbara Houston
- Department of Medicine, Metabolism, University of Washington, Seattle, Washington, United States of America
| | - Mohamed Omer
- Department of Medicine, Metabolism, University of Washington, Seattle, Washington, United States of America
| | - Kayoko Ogimoto
- Department of Medicine, Metabolism, University of Washington, Seattle, Washington, United States of America
| | - Savitha Subramanian
- Department of Medicine, Metabolism, University of Washington, Seattle, Washington, United States of America
| | - G. A. Nagana Gowda
- Northwest Metabolomics Research Center, Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, Washington, United States of America
| | - Kevin D. O’Brien
- Department of Medicine, Cardiology, University of Washington, Seattle, Washington, United States of America
| | - Karl J. Kaiyala
- Department of Oral Health Sciences, University of Washington, Seattle, Washington, United States of America
| | - Gregory J. Morton
- Department of Medicine, Metabolism, University of Washington, Seattle, Washington, United States of America
| | - Alan Chait
- Department of Medicine, Metabolism, University of Washington, Seattle, Washington, United States of America
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50
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Carey JL, Nader N, Chai PR, Carreiro S, Griswold MK, Boyle KL. Drugs and Medical Devices: Adverse Events and the Impact on Women's Health. Clin Ther 2017; 39:10-22. [PMID: 28069260 PMCID: PMC5779632 DOI: 10.1016/j.clinthera.2016.12.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 12/05/2016] [Accepted: 12/08/2016] [Indexed: 12/26/2022]
Abstract
A large number of medications and medical devices removed from the market by the US Food and Drug Administration over the past 4 decades specifically posed greater health risks to women. This article reviews the historical background of sex and gender in clinical research policy and describes several approved drugs and devices targeted for use in women that have caused major morbidity and mortality. The intended population for the medications and devices, population affected, approval process, and the basic and legal actions taken against the medication/drug company are also discussed. It is recognized that women are still at risk for harm from unsafe medications and devices, and continued improvements in legislation that promotes inclusion of sex and gender into the design and analysis of research will improve safety for both men and women.
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Affiliation(s)
- Jennifer L Carey
- Division of Medical Toxicology, Department of Emergency Medicine, University of Massachusetts Medical School, Worcester, Massachusetts.
| | - Nathalie Nader
- Division of Medical Toxicology, Department of Emergency Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Peter R Chai
- Division of Medical Toxicology, Department of Emergency Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Stephanie Carreiro
- Division of Medical Toxicology, Department of Emergency Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Matthew K Griswold
- Division of Medical Toxicology, Department of Emergency Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Katherine L Boyle
- Division of Medical Toxicology, Department of Emergency Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
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