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Plant Extracts Inhibit the Formation of Hydroperoxides and Help Maintain Vitamin E Levels and Omega-3 Fatty Acids During High Temperature Processing and Storage of Hempseed and Soybean Oils

Oxidative stability of hempseed and soybean oils, was evaluated after heating at 180 °C, followed by a subsequent 14-day storage at 38 °C. Natural plant extracts (Rosemary, Sage, and Thyme) were added to oils, to evaluate the carry-over stabilizing potential. Heated oils exhibited a relatively faster (P < 0.05) onset of lipid oxidation, as depicted by the analysis of the peroxides and aldehydes formed during the lipid oxidation process, with hempseed oil being more susceptible to lipid oxidation...

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Oxidative stability of hempseed and soybean oils, was evaluated after heating at 180 °C, followed by a subsequent 14-day storage at 38 °C. Natural plant extracts (Rosemary, Sage, and Thyme) were added to oils, to evaluate the carry-over stabilizing potential. Heated oils exhibited a relatively faster (P < 0.05) onset of lipid oxidation, as depicted by the analysis of the peroxides and aldehydes formed during the lipid oxidation process, with hempseed oil being more susceptible to lipid oxidation than soybean oil. There were notable losses in ω-3 PUFA and ω-6-GLA during storage of heat treated hempseed oil (P < 0.05). Moreover, peroxide values measured from hempseed oil remained low after high-temperature heating but progressed at a relatively greater rate than that observed in soybean during storage (P < 0.05). The addition of different plant extracts to oils did not prevent oxidation due to heating, but effectively inhibited the generation of hydroperoxides during subsequent storage (P < 0.05). This stabilizing effect was attributed to retention of tocopherols, in particular, γ-tocopherol. PRACTICAL APPLICATION: This research demonstrates the use of plant extracts like rosemary, sage and thyme, for improving the shelf-life and nutritional stability of hempseed and soybean oil. We demonstrate the deterioration of fatty acid profiles and vitamin E levels in the oil on heating and subsequent storage, and show the efficacy of using plant extracts in slowing down these deteriorations. This research will be applicable in food industries using or producing oils for use in food during cooking, and also as dressing on already processed food products.

Keywords: GLA; heating; hempseed oil; lipid oxidation; natural preservatives; oxidative stability; storage; tocopherols; ω-3PUFA.

Source: https://pubmed.ncbi.nlm.nih.gov/31599978/?utm_source=no_user_agent&utm_medium=rss&utm_campaign=pubmed-2&utm_content=1lg0RU4SkRVNqPFA7e6OZattw-Uzcw0dBEajJBQqmhHlNZ8MdX&fc=20200804212534&ff=20200812190906&v=2.11.5

Heartland

Clinical evaluation of physician-controlled guidewire manipulation during endoscopic ultrasound-guided hepaticogastrostomy (with video)

Background and study aims Endoscopic ultrasound (EUS)-guided hepaticogastrostomy (HGS) may be most complex because of the EUS-guided biliary drainage procedure and variations in the course of the intrahepatic bile duct compared with the common bile duct (CBD). Appropriate guidewire insertion is essential. Physician-controlled guidewire manipulation (PCGW) might improve technical success rates of bile duct cannulation. The present study aimed to determine the technical feasibility and safety of…

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. 2021 Mar;9(3):E395-E400.

doi: 10.1055/a-1336-3132. Epub 2021 Feb 19.

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Kyohei Nishiguchi et al. Endosc Int Open. 2021 Mar.

Abstract

Background and study aims Endoscopic ultrasound (EUS)-guided hepaticogastrostomy (HGS) may be most complex because of the EUS-guided biliary drainage procedure and variations in the course of the intrahepatic bile duct compared with the common bile duct (CBD). Appropriate guidewire insertion is essential. Physician-controlled guidewire manipulation (PCGW) might improve technical success rates of bile duct cannulation. The present study aimed to determine the technical feasibility and safety of PCGW during EUS-HGS. Patients and methods A total of 122 consecutive patients who were scheduled to undergo EUS-HGS between October 2017 and April 2019 were prospectively registered. The primary endpoint was the technical success rate of guidewire insertion into the CBD or hepatic hilum. Guidewire insertion was considered to have failed if the HGS assistant failed to achieve manipulation. Results The intrahepatic bile duct was successfully punctured in 120 of 122 patients. During guidewire insertion by the HGS assistant, guidewire fracture was observed in one patient. The guidewire was successfully inserted into the biliary tract and manipulated by the HGS assistant in 96 patients. PCGW was thus attempted for the remaining 23 patients. The guidewire was inserted by PCGW in all 23 patients, improving the technical success rate for guidewire insertion from 80 % to 100 %. After tract dilation, we deployed covered metal stents and plastic stents in 117 and two patients, respectively. The overall technical success rate for EUS-HGS was 97.5 % (119/122). Adverse events comprising bile peritonitis or leakage developed in five patients. Conclusion PCGW might contribute to improving the success rate of EUS-HGS.

Conflict of interest statement

Competing interests The authors declare that they have no conflict of interest.

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Source: https://pubmed.ncbi.nlm.nih.gov/33655039/?utm_source=Googlebot&utm_medium=rss&utm_campaign=pubmed-2&utm_content=1zmroqAMnEquTZFTfdGx1V1gPEavo-Be3-FKTecJpOlB7LykCL&fc=20200804213506&ff=20210303125051&v=2.14.2

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Heartland

Cannabis sativa: Interdisciplinary Strategies and Avenues for Medical and Commercial Progression Outside of CBD and THC

Cannabis sativa (Cannabis) is one of the world’s most well-known, yet maligned plant species. However, significant recent research is starting to unveil the potential of Cannabis to produce secondary compounds that may offer a suite of medical benefits, elevating this unique plant species from its illicit narcotic status into a genuine biopharmaceutical. This review summarises the lengthy history of Cannabis and details the molecular pathways that underpin the production of key secondary…

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Review

. 2021 Feb 26;9(3):234.

doi: 10.3390/biomedicines9030234.

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Review

Jackson M J Oultram et al. Biomedicines. .

Abstract

Cannabis sativa (Cannabis) is one of the world’s most well-known, yet maligned plant species. However, significant recent research is starting to unveil the potential of Cannabis to produce secondary compounds that may offer a suite of medical benefits, elevating this unique plant species from its illicit narcotic status into a genuine biopharmaceutical. This review summarises the lengthy history of Cannabis and details the molecular pathways that underpin the production of key secondary metabolites that may confer medical efficacy. We also provide an up-to-date summary of the molecular targets and potential of the relatively unknown minor compounds offered by the Cannabis plant. Furthermore, we detail the recent advances in plant science, as well as synthetic biology, and the pharmacology surrounding Cannabis. Given the relative infancy of Cannabis research, we go on to highlight the parallels to previous research conducted in another medically relevant and versatile plant, Papaver somniferum (opium poppy), as an indicator of the possible future direction of Cannabis plant biology. Overall, this review highlights the future directions of cannabis research outside of the medical biology aspects of its well-characterised constituents and explores additional avenues for the potential improvement of the medical potential of the Cannabis plant.

Keywords: Cannabis sativa (Cannabis); Papaver somniferum (opium poppy); cannabidiol (CBD); cannabinoid receptors (CB1 and CB2); cannabinoids; secondary metabolites; tetrahydrocannabinol (THC).

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Source: https://pubmed.ncbi.nlm.nih.gov/33652704/?utm_source=Googlebot&utm_medium=rss&utm_campaign=pubmed-2&utm_content=1zmroqAMnEquTZFTfdGx1V1gPEavo-Be3-FKTecJpOlB7LykCL&fc=20200804213506&ff=20210303125051&v=2.14.2

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Propolis in Metabolic Syndrome and Its Associated Chronic Diseases: A Narrative Review

Propolis is a resinous product collected by bees from plants to protect and maintain the homeostasis of their hives. Propolis has been used therapeutically by humans for centuries. This review article attempts to analyze the potential use of propolis in metabolic syndrome (MetS) and its associated chronic diseases. MetS and its chronic diseases were shown to be involved in at least seven out of the top 10 causes of death in 2019. Patients with MetS are also at a heightened risk of severe…

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Review

. 2021 Feb 26;10(3):348.

doi: 10.3390/antiox10030348.

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Review

Felix Zulhendri et al. Antioxidants (Basel). .

Abstract

Propolis is a resinous product collected by bees from plants to protect and maintain the homeostasis of their hives. Propolis has been used therapeutically by humans for centuries. This review article attempts to analyze the potential use of propolis in metabolic syndrome (MetS) and its associated chronic diseases. MetS and its chronic diseases were shown to be involved in at least seven out of the top 10 causes of death in 2019. Patients with MetS are also at a heightened risk of severe morbidity and mortality in the present COVID-19 pandemic. Propolis with its antioxidant and anti-inflammatory properties is potentially useful in ameliorating the symptoms of MetS and its associated chronic diseases. The aim of this article is to provide a comprehensive review on propolis and its therapeutic benefit in MetS and its chronic diseases, with an emphasis on in vitro and in vivo studies, as well as human clinical trials. Moreover, the molecular and biochemical mechanisms of action of propolis are also discussed. Propolis inhibits the development and manifestation of MetS and its chronic diseases by inhibiting of the expression and interaction of advanced glycation end products (AGEs) and their receptors (RAGEs), inhibiting pro-inflammatory signaling cascades, and promoting the cellular antioxidant systems.

Keywords: Alzheimer’s disease; anti-inflammation; antioxidant; cardiovascular; chronic diseases; chronic kidney disease; diabetes mellitus; fatty liver disease; metabolic syndrome; propolis.

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Source: https://pubmed.ncbi.nlm.nih.gov/33652692/?utm_source=Googlebot&utm_medium=rss&utm_campaign=pubmed-2&utm_content=1zmroqAMnEquTZFTfdGx1V1gPEavo-Be3-FKTecJpOlB7LykCL&fc=20200804213506&ff=20210303125051&v=2.14.2

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