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Synthesis of interpenetrating network (IPN) hydrogels based on acrylic acid (AAc) and guar gum and its application as drug delivery for pyridoxine hydrochloride (vitamin B6). JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02848-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
Dietary supplements are the most common type of complementary medicine in Australia, reportedly used by 47% of the population. Vitamins and minerals are particularly popular Like all medicines, supplements can cause potential harms such as adverse reactions, drug interactions, monetary cost, delay of more effective therapy, false hope, and increased medication burden Although most vitamins and minerals are available for open sale, many are subject to legal restrictions as scheduled medicines, depending on the dose Consumers are at risk of overdose when the same ingredient is present in multiple products Health professionals can assist consumers by discussing the potential benefits and harms of vitamins and minerals and assisting them to find authoritative information Adverse events with vitamins and minerals should be reported to the Therapeutic Goods Administration
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Affiliation(s)
- Geraldine Moses
- Mater Health Services, Brisbane.,School of Pharmacy, University of Queensland, Brisbane
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The pharmaceuticalisation of 'healthy' ageing: Testosterone enhancement for longevity. THE INTERNATIONAL JOURNAL OF DRUG POLICY 2021; 95:103159. [PMID: 33583680 DOI: 10.1016/j.drugpo.2021.103159] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 12/08/2020] [Accepted: 02/02/2021] [Indexed: 12/15/2022]
Abstract
The United Nations estimates that the world's population will reach 8.5 billion by 2030, and the populations of most countries are expected to grow older. This is case for many developed countries, including Australia, the United Kingdom, Canada, the United States of America, and member states of the European Union. Older cohorts will comprise a larger proportion of overall populations, driven in part by our increases in life expectancy. An ageing population poses challenges for governments; notably, older people tend to have multiple, chronic health conditions which can place a burden of health budgets. At the same time, we are witnessing a shift in how we respond to the health needs of our populations, with global drug policy acknowledging that some substances are contributing to increased morbidity and mortality (e.g. opioids) while others may have beneficial therapeutic effects (e.g. psylocibin, cannabis). There is general agreement that as men age their levels of testosterone decrease, and there is some evidence to suggest that there have been population-level declines in testosterone which are not associated with age. Anecdotally, testosterone is accessed by men seeking to self-medicate in the belief that they are experiencing low testosterone levels. There has also been a rise in anti-ageing clinics in the United States, providing access to testosterone replacement therapy (TRT). The non-medical use of testosterone can result in a number of adverse health events, including complications from the use of black market or underground products. Placing testosterone under a new prescribing regime may address some of these concerns, but is society ready for this change, and if so, what would this regime look like? This paper will explore the issue of how society responds to enhancement for longevity, or how we increasingly use pharmaceuticals to address and prevent illness, with a specific focus on testosterone and testosterone deficiency.
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Heydari M, Gholoobi A, Ranjbar G, Rahbar N, Sany SBT, Mobarhan MG, Ferns GA, Rezayi M. Aptamers as potential recognition elements for detection of vitamins and minerals: a systematic and critical review. Crit Rev Clin Lab Sci 2019; 57:126-144. [PMID: 31680587 DOI: 10.1080/10408363.2019.1678566] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Background: Vitamin and mineral deficiencies are prevalent globally, and extensive efforts have been made to assess their status. Most traditional methods are expensive and time-consuming; therefore, developments of rapid, simple, specific, and sensitive methods for the assessment of vitamins and minerals in biological samples are of high importance in research. Aptamers are synthetic nucleic acid single-stranded DNA or RNA that can be synthesized in vitro. They can be engineered to be analyte-specific and have been suggested as a substitute for monoclonal antibodies, due to their high sensitivity and affinity. In addition, aptamers can be chemically synthesized and readily modified for use as biosensors. These features make aptamers a promising tool for the detection of biological analytes. In this review, we provide an overview of the potential use of aptamer-based biosensors.Methods: Search terms were conducted on several online databases, including Google Scholar, PubMed, Scopus, and Science Direct from January 2000 to August 2019. Eligibility criteria were used and quality evaluation was performed. Following the review of 4349 articles, 39 articles met the inclusion criteria.Results: Aptasensors have recently been developed for the detection of vitamins by using optical methods, with a detection range from 74 pM to 204 pM, and lower limit of detection of 2.4 pM. Both electrochemical and optical methods have been used for detection of minerals, however electrochemical methods show a wider linear range and lower detection limits compared to optical methods with a wide linear range from 0.2 fM to 1.0 mM and limit of detection of 14.7 fM.Conclusion: The current report reviews recent developments in aptamer-based biosensors for detection of vitamins and minerals. Studies have shown that aptasensors' properties are suitable for the quantification of vitamins and minerals with high sensitivity, affinity, and specificity. Nevertheless, the limitations and future directions of aptamers require further research and new technological innovation.
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Affiliation(s)
- Maryam Heydari
- Nanotechnology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Aida Gholoobi
- Department of Modern Sciences and Technologies, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Golnaz Ranjbar
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Nadereh Rahbar
- Nanotechnology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Medicinal Chemistry Departments, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Seyedeh Belin Tavakoly Sany
- Department of Health Education and Health Promotion, Faculty of Health, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Majid Ghayour Mobarhan
- Metabolic Syndrome Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gordon A Ferns
- Division of Medical Education, Brighton & Sussex Medical School, Brighton, UK
| | - Majid Rezayi
- Metabolic Syndrome Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Medical Toxicology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Medical Biotechnology and Nanotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Kennedy M. Author reply. Intern Med J 2019; 49:810. [DOI: 10.1111/imj.14315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Accepted: 03/26/2019] [Indexed: 11/29/2022]
Affiliation(s)
- Michael Kennedy
- St Vincent’s Clinical SchoolUNSW Medicine, UNSW Sydney Sydney New South Wales Australia
- Department of Clinical Pharmacology and ToxicologySt Vincent’s Hospital Sydney Sydney New South Wales Australia
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Truswell AS. More on vitamins. Intern Med J 2019; 49:809-810. [DOI: 10.1111/imj.14277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 03/03/2019] [Accepted: 03/03/2019] [Indexed: 11/27/2022]
Affiliation(s)
- Arthur S. Truswell
- Department of Human NutritionUniversity of Sydney Sydney New South Wales Australia
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