127 results on '"Pont L"'
Search Results
2. Decoding epilepsy treatment: A comparative evaluation contrasting cannabidiol pharmacokinetics in adult and paediatric populations
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Osman, M, Khalil, J, El-Bahri, M, Swalah Mcdahrou, J, Fahda, R, Mustafa, R, Ooi, A, Attayee, M, Catanzariti, R, Pont, L, Williams, K, Yeung, S, Dua, K, De Rubis, G, Loebenberg, R, Osman, M, Khalil, J, El-Bahri, M, Swalah Mcdahrou, J, Fahda, R, Mustafa, R, Ooi, A, Attayee, M, Catanzariti, R, Pont, L, Williams, K, Yeung, S, Dua, K, De Rubis, G, and Loebenberg, R
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- 2024
3. Comparative pharmacokinetic evaluation of nanoparticle-based vs. conventional pharmaceuticals containing statins in attenuating dyslipidaemia.
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Cordina, J, Ahmad, I, Nath, R, Abdul Rahim, B, Van, A, Al-Zuhairi, D, Williams, K, Pont, L, Catanzariti, R, Mehndiratta, S, Valdivia-Olivares, RY, De Rubis, G, Dua, K, Cordina, J, Ahmad, I, Nath, R, Abdul Rahim, B, Van, A, Al-Zuhairi, D, Williams, K, Pont, L, Catanzariti, R, Mehndiratta, S, Valdivia-Olivares, RY, De Rubis, G, and Dua, K
- Abstract
Dyslipidaemia describes the condition of abnormal lipid levels in a person's bloodstream. Since the 1980s, statin medications have been used to treat dyslipidaemia and other comorbidities, such as stroke risk and atherosclerosis. Statin medications were initially synthesised from fungal metabolites, but many synthetic statin drugs have been manufactured since then. Statin medication is quite effective in reducing total cholesterol levels in the bloodstream, but it has limitations. Due to their poor water solubility, statin drugs possess poor oral bioavailability, which hinders their therapeutic efficacy. Nanoparticle drug delivery technology has been shown to improve the pharmacokinetic profiles of many drug classes, and statins have great potential to benefit from this. This paper reviewed the currently available literature on nanoparticle statin medication and evaluated the possible improvements that can be made to the pharmacokinetic profile and efficacy of conventional statin medication. It was found that the oral bioavailability of nanoparticle medication consistently outperformed conventional medication by up to 400% in some cases. Substantial improvements in time to peak plasma concentration and plasma concentration peaks were also found, and increased periods in circulation before excretion were shown. It was concluded that nanoparticle technology has the potential to completely replace conventional statin medication as it offers more significant benefits with minimal drawbacks. Upon further study and development, the manufacture of nanoparticle statin medication should become feasible enough for large-scale application, which will significantly benefit patients and unburden healthcare systems.
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- 2024
4. A critical retrospective and prospective review of designs and materials in in-line solid-phase extraction capillary electrophoresis
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Pont, L., Pero-Gascon, R., Gimenez, E., Sanz-Nebot, V., and Benavente, F.
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- 2019
- Full Text
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5. On-line Solid-phase Extraction Capillary Electrophoresis–Mass Spectrometry and Data Analysis Approaches for Metabolomics
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Pont, L., primary, Sanz-Nebot, V., additional, Barbosa, J., additional, and Benavente, F., additional
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- 2018
- Full Text
- View/download PDF
6. Biosimilars approvals by thirteen regulatory authorities: A cross-national comparison.
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Machado, FLDS, Cañás, M, Doubova, SV, Urtasun, MA, Marín, GH, Osorio-de-Castro, CGS, Albuquerque, FC, Ribeiro, TB, Pont, L, Crisóstomo Landeros, J, Roldán Saelzer, J, Sepúlveda Viveros, D, Acosta, A, Machado Beltrán, MA, Gordillo Alas, LI, Orellana Tablas, LA, Benko, R, Convertino, I, Bonaso, M, Tuccori, M, Kirchmayer, U, Contreras Sánchez, SE, Rodríguez-Tanta, LY, Gutierrez Aures, Y, Lin, B, Alipour-Haris, G, Eworuke, E, Lopes, LC, Machado, FLDS, Cañás, M, Doubova, SV, Urtasun, MA, Marín, GH, Osorio-de-Castro, CGS, Albuquerque, FC, Ribeiro, TB, Pont, L, Crisóstomo Landeros, J, Roldán Saelzer, J, Sepúlveda Viveros, D, Acosta, A, Machado Beltrán, MA, Gordillo Alas, LI, Orellana Tablas, LA, Benko, R, Convertino, I, Bonaso, M, Tuccori, M, Kirchmayer, U, Contreras Sánchez, SE, Rodríguez-Tanta, LY, Gutierrez Aures, Y, Lin, B, Alipour-Haris, G, Eworuke, E, and Lopes, LC
- Abstract
Biosimilars are biological medicines highly similar to a previously licensed reference product and their licensing is expected to improve access to biological therapies. This study aims to present an overview of biosimilars approval by thirteen regulatory authorities (RA). The study is a cross-national comparison of regulatory decisions involving biosimilars in Argentina, Australia, Brazil, Chile, Canada, Colombia, Europe, Hungary, Guatemala, Italy, Mexico, Peru and United States. We examined publicly available documents containing information regarding the approval of biosimilars and investigated the publication of public assessment reports for registration applications, guidelines for biosimilars licensing, and products approved. Data extraction was conducted by a network of researchers and regulatory experts. All the RA had issued guidance documents establishing the requirements for the licensing of biosimilars. However, only three RA had published public assessment reports for registration applications. In total, the investigated jurisdictions had from 19 to 78 biosimilars approved, most of them licensed from 2018 to 2020. In spite of the advance in the number of products in recent years, some challenges still persist. Limited access to information regarding the assessment of biosimilars by RA can affect confidence, which may ultimately impact adoption of these products in practice.
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- 2023
7. A comparative evaluation of propranolol pharmacokinetics in obese versus ideal weight individuals: A blueprint towards a personalised medicine.
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Mortlock, R, Smith, V, Nesci, I, Bertoldi, A, Ho, A, El Mekkawi, Z, Kakuzada, L, Williams, K, Pont, L, De Rubis, G, Dua, K, Mortlock, R, Smith, V, Nesci, I, Bertoldi, A, Ho, A, El Mekkawi, Z, Kakuzada, L, Williams, K, Pont, L, De Rubis, G, and Dua, K
- Abstract
The pharmacokinetics of propranolol were investigated in obese and healthy weight groups. Research studies in relation to the presented topic were gathered, evaluated, and compared to distinguish variabilities involved amongst different lipophilic drugs and how they impacted the clinical effectiveness. Propranolol is a lipophilic drug so it was predicted that the pharmacokinetics would differ between obese and ideal-weight individuals. Previous research in other lipophilic drugs shows a trend to increase the volume of distribution and half-life in obese compared to ideal weight individuals. However, the majority of both clinical and preclinical studies gathered in this review, found a decrease in the volume of distribution (VD) and clearance, and minimal significant difference in the half-life, in the obese group when compared with the ideal weight group. Different explanations for this comparison have been theorised including differing tissue blood flow, plasma protein binding, or hepatic clearance in obese compared with ideal weight populations; though the exact reasoning as to why propranolol does not follow the general trend for lipophilic drugs is yet to be determined. These findings regarding propranolol pharmacokinetics can be utilised towards further research and development in personalised medicine for patients with obesity and comorbid cardiovascular disease. The comparative studies highlighted the pharmacokinetic parameters which demonstrated a need for personalised dosage regimes for propranolol and a proposed research direction to understand why the difference exists between these population groups. With the prevalence of obesity continuing to rise, the relative pharmacokinetics of drugs must be evaluated in obese patient groups in order to inform drug dosing regimens and improve current clinical practice.
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- 2023
8. In vitro screening of clinical drugs identifies sensitizers of oncolytic viral therapy in glioblastoma stem-like cells
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Berghauser Pont, L M E, Balvers, R K, Kloezeman, J J, Nowicki, M O, van den Bossche, W, Kremer, A, Wakimoto, H, van den Hoogen, B G, Leenstra, S, Dirven, C M F, Chiocca, E A, Lawler, S E, and Lamfers, M L M
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- 2015
- Full Text
- View/download PDF
9. A systematic literature review and meta-analysis of community pharmacist-led interventions to optimise the use of antibiotics.
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Lambert, M, Smit, CCH, De Vos, S, Benko, R, Llor, C, Paget, WJ, Briant, K, Pont, L, Van Dijk, L, Taxis, K, Lambert, M, Smit, CCH, De Vos, S, Benko, R, Llor, C, Paget, WJ, Briant, K, Pont, L, Van Dijk, L, and Taxis, K
- Abstract
AIMS: The aim of this systematic review is to assess the effects of community pharmacist-led interventions to optimise the use of antibiotics and identify which interventions are most effective. METHODS: This review was conducted according to the PRISMA guidelines (PROSPERO: CRD42020188552). PubMed, EMBASE and the Cochrane Central Register of Controlled Trials were searched for (randomised) controlled trials. Included interventions were required to target antibiotic use, be set in the community pharmacy context, and be pharmacist-led. Primary outcomes were quality of antibiotic supply and adverse effects while secondary outcomes included patient-reported outcomes. Risk of bias was assessed using the 'Cochrane suggested risk of bias criteria' and narrative synthesis of primary outcomes conducted. RESULTS: Seventeen studies were included covering in total 3822 patients (mean age 45.6 years, 61.9% female). Most studies used educational interventions. Three studies reported on primary outcomes, 12 on secondary outcomes and two on both. Three studies reported improvements in quality of dispensing, interventions led to more intensive symptom assessment (up to 30% more advice given) and a reduction of over-the-counter supply up to 53%. Three studies led to higher consumer satisfaction, effects on adherence from nine studies were mixed (risk difference 0.04 [-0.02, 0.10]). All studies had unclear or high risks of bias across at least one domain, with large heterogeneity between studies. CONCLUSIONS: Our review suggests some positive results from pharmacist-led interventions, but the interventions do not seem sufficiently effective as currently implemented. This review should be interpreted as exploratory research, as more high-quality research is needed.
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- 2022
10. A systematic literature review of community pharmacist-led interventions to optimize the use of antibiotics
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Llor C, Smit C, Paget J, Dijk Lv, Taxis K, Pont L, Lambert M, Vos Sd, Briant K, and Benko R
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Systematic review ,Nursing ,Community pharmacist ,business.industry ,Psychological intervention ,Medicine ,business - Abstract
Objectives. The aim of this systematic review is to assess the effects of community pharmacist-led interventions to optimize the use of antibiotics and identify which interventions are most effective. Methods. This review was conducted according to the PRISMA-P guidelines (PROSPERO: CRD42020188552). PubMed, EMBASE and the Cochrane Central Register of Controlled Trials were searched for (randomised) controlled trials. Included interventions were required to target antibiotic use, be set in the community pharmacy context and be pharmacist-led. Primary outcomes were quality of antibiotic supply and adverse effects while secondary outcomes included patient reported outcomes. Risk of bias was assessed using the ‘Cochrane suggested risk of bias criteria’ and narrative synthesis of primary outcomes conducted. Results. Seventeen studies were included covering in total 3,822 patients (mean age 45.6 years, 61.9% female). Most studies used educational interventions. Three studies reported on primary outcomes, twelve on secondary outcomes and two on both. Three studies reported improvements in quality of dispensing where interventions led to more intensive symptom assessment and a reduction of OTC or wrong choice antibiotic supply. Some interventions led to higher consumer satisfaction, effects on adherence were mixed. All studies had unclear or high risks of bias across at least one domain, with large heterogeneity between studies. Conclusions. Our review suggests some possible positive results from pharmacist-led interventions, but the role of the pharmacist needs to be expanded. This review should be interpreted as exploratory research, as more high-quality research is needed. Authors did not receive funding for the review.
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- 2021
11. Current practice in cancer pharmacotherapy
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Pont, L, Dua, K, Cutler, RL, Benson, H, Haghi, M, Cardenas, VG, Smit, CCH, Ao, A, and Williams, KA
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- 2021
12. Attitudes to Drug Use in Residential Aged Care Facilities: A Cross-Sectional Survey of Nurses and Care Staff
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Lo, SY, Reeve, E, Page, AT, Zaidi, STR, Hilmer, SN, Etherton-Beer, C, McLachlan, A, Pont, L, and Naganathan, V
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Cross-Sectional Studies ,Attitude ,Pharmaceutical Preparations ,Geriatrics ,Homes for the Aged ,Humans ,Nurses ,1115 Pharmacology and Pharmaceutical Sciences ,Aged - Abstract
BACKGROUND: Residential aged care facility (RACF) staff are well placed to identify opportunities for more appropriate prescribing. However, little is known about their views of polypharmacy, deprescribing and specific medications. OBJECTIVE: The objective of this study was to establish the beliefs and attitudes of RACF staff towards polypharmacy and medication use in residents. METHODS: A cross-sectional survey was conducted on RACF staff in metropolitan New South Wales, Australia using a self-administered questionnaire. The questionnaire was drafted based on the available literature and research team expertise and then piloted by a mixed group of 13 RACF staff. The final version of the questionnaire consisted of 28 questions. A total of 38 RACFs were contacted about the study. The questionnaire was distributed to eligible RACF staff between October 2017 and October 2019. The RACF staff were eligible if they provided direct patient care to residents or worked as a facility manager. Participants were excluded if they had insufficient English language skills. The results were presented in two groups, the nursing and care staff, using descriptive statistics. RESULTS: A total of 176 individuals from nine RACFs completed the questionnaire of whom 160 were eligible for study inclusion. Most considered polypharmacy to be five or more different tablets and capsules per day (95% nursing and 82% care staff respectively). A wide range of beliefs about medication use and deprescribing that centred on what constitutes appropriate polypharmacy was identified. Most thought that preventive medications were essential for residents. Most nurses agreed that sleeping tablets and pharmacological management of verbal aggression and wandering behaviours should be used less frequently whilst most care staff agreed that medications should be used more frequently to manage physical aggression. CONCLUSIONS: To successfully and sustainably optimise medication use in RACF residents, it is important to consider the variation in views of nurses and care staff.
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- 2021
13. Attitudes, barriers and facilitators of hospital pharmacists conducting practice-based research: a systematic review
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Reali, S, Lee, T, Bishop, J, Mirkov, S, Johnson, J, McCourt, E, Hughes, J, Pont, L, Page, AT, Penm, J, Reali, S, Lee, T, Bishop, J, Mirkov, S, Johnson, J, McCourt, E, Hughes, J, Pont, L, Page, AT, and Penm, J
- Abstract
Introduction Practice‐based research is essential in enhancing medication knowledge, quality use of medicines, the scope of the pharmacy profession and improving patient outcomes. This systematic review aims to uncover the attitudes of hospital pharmacists towards practice‐based research and their perceptions of the barriers and facilitators to undertaking practice‐based research. Methods A systematic search of MEDLINE, Embase, International Pharmaceutical Abstracts and Cumulative Index to Nursing and Allied Health Literature databases from 1 January 2000 to 11 March 2021 was conducted. Peer‐reviewed empirical studies exploring hospital pharmacists’ perceptions of – as well as barriers and facilitators to – practice‐based research were included and a descriptive synthesis used to identify common themes. Results Nine studies were included in this review. Barriers and facilitators across four broad themes were related to pharmacist capacity and capability, workplace environment, research resources, and research culture. Hospital pharmacists had a high interest in conducting research, but limited research experience. Common barriers identified were lack of time, workplace support, funding, research culture, and competing priorities. Having a post‐graduate qualification and a positive attitude towards research facilitated research participation. Departmental support, designated research time and creation of research networks and forums were seen as facilitators for practice‐based research. Conclusion Hospital pharmacists recognise the importance of practice‐based research in improving knowledge, patient care and advancing pharmacy practice. However, large variation has been reported for their confidence and experience in practice‐based research. Building research capacity and capability by supporting post‐graduate research qualification, providing designated time and creating research networks may strengthen the research culture amongst hospital pharmacists.
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- 2021
14. Key concepts in medication management in older persons for pharmacists practicing in non-geriatric specialties
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Godbole, G, Bolitho, R, Pont, L, Godbole, G, Bolitho, R, and Pont, L
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Medication management for older persons can be complex. With over 50% of all hospital admissions being for people aged over 65 years, understanding age-related functional, cognitive and social factor changes and their impact on medication use is critical for pharmacists working in most adult medicine areas. This paper provides an overview of critical elements of medication management for older persons for pharmacists. Key elements include age-related changes impacting medication effectiveness and safety, frailty, geriatric syndromes, polypharmacy and deprescribing, minimising medication-related harm at transitions of care, dose administration aids and other strategies to support individuals in medication management and multidisciplinary comprehensive geriatric assessment.
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- 2021
15. A systematic literature review of community pharmacist-led interventions to optimize the use of antibiotics
- Author
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Lambert, M, Smit, C, Vos, SD, Benko, R, Llor, C, Paget, J, Briant, K, Pont, L, Dijk, LV, Taxis, K, Lambert, M, Smit, C, Vos, SD, Benko, R, Llor, C, Paget, J, Briant, K, Pont, L, Dijk, LV, and Taxis, K
- Published
- 2021
16. The General Practice and Residential Aged Care Facility Concordance of Medication (GRACEMED) study.
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Makeham, M, Pont, L, Verdult, C, Hardie, R-A, Raban, MZ, Mitchell, R, Purdy, H, Teichert, M, Ingersoll, A, Westbrook, JI, Makeham, M, Pont, L, Verdult, C, Hardie, R-A, Raban, MZ, Mitchell, R, Purdy, H, Teichert, M, Ingersoll, A, and Westbrook, JI
- Abstract
BACKGROUND: The lack of interoperable IT systems between residential aged care facilities (RACF) and general practitioners (GP) in primary care settings in Australia introduces the potential for medication discrepancies and other medication errors. The aim of the GRACEMED study is to determine the extent and potential severity of medication discrepancies between general practice and RACFs, and identify factors associated with medication discrepancies. METHODS: A cross sectional study of medication discrepancies between RACF medication orders and GP medication lists was conducted in the Sydney North Health Network, Australia. A random sample of RACF residents was included from practice lists provided by the general practices. RACF medication orders and GP medication lists for the included residents were compared, and medication discrepancies between the two sources were identified and characterised in terms of discrepancy type, potential for harm and associated factors. RESULTS: 31 GPs and 203 residents were included in the study. A total of 1777 discrepancies were identified giving an overall discrepancy rate of 72.6 discrepancies for every 100 medications. Omissions were the most common discrepancy type (35.2%,) followed by dose discrepancies (34.4%) and additions (30.4%). 48.5% of residents had a discrepancy with the potential to result in moderate harm and 9.8% had a discrepancy with the potential for severe harm. Number of medications prescribed was the only factor associated with medication discrepancies. CONCLUSION: Increased use of systems that allow information sharing and improved interoperability of clinical information is urgently needed to address medication safety issues experienced by RACF residents.
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- 2020
17. Drug Delivery of Respiratory Medicines in Practice
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Dua, K, Pont, L, Williams, K, Dua, K, Pont, L, and Williams, K
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- 2020
18. Pharmacokinetics and pharmacodynamics of the advanced drug delivery systems
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Dua, K, Hansbro, P, Wadhwa, R, Haghi, M, Pont, L, Williams, K, Zeeshan, F, Dua, K, Hansbro, P, Wadhwa, R, Haghi, M, Pont, L, Williams, K, and Zeeshan, F
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- 2020
19. Plant-based drug delivery systems in respiratory diseases
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Dua, K, Hansbro, P, Wadhwa, R, Haghi, M, Pont, L, Williams, K, Mehta, M, Sharma, P, Kaur, S, Dhanjal, DS, Singh, B, Vyas, M, Gupta, G, Chellappan, DK, Nammi, S, Singh, TG, Satija, S, Dua, K, Hansbro, P, Wadhwa, R, Haghi, M, Pont, L, Williams, K, Mehta, M, Sharma, P, Kaur, S, Dhanjal, DS, Singh, B, Vyas, M, Gupta, G, Chellappan, DK, Nammi, S, Singh, TG, and Satija, S
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- 2020
20. The International Society for Pharmacoepidemiology's Comments on the Core Recommendations in the Summary of the Heads of Medicines Agencies (HMA) - EMA Joint Big Data Task Force
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Pottegård, A, Klungel, O, Winterstein, A, Huybrechts, K, Hallas, J, Schneeweiss, S, Evans, S, Bate, A, Pont, L, Trifirò, G, Smith, M, Bourke, A, Pottegård, A, Klungel, O, Winterstein, A, Huybrechts, K, Hallas, J, Schneeweiss, S, Evans, S, Bate, A, Pont, L, Trifirò, G, Smith, M, and Bourke, A
- Published
- 2019
21. Mise en évidence de biomarqueurs d’exposition et d’effets chez la moule méditerranéenne (Mytilus galloprovincialis) suite à une exposition au diclofenac
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Bonnefille, B., Alali, M, Arpin-Pont, L., Fenet, H., Gomez, Elena, Courant, F., Hydrosciences Montpellier (HSM), and Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Recherche pour le Développement (IRD)-Université Montpellier 2 - Sciences et Techniques (UM2)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)
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[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2017
22. Safety and Effectiveness of Palliative Drug Treatment in the Last Days of Life—A Systematic Literature Review
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Jansen, K, Haugen, DF, Pont, L, Ruths, S, Jansen, K, Haugen, DF, Pont, L, and Ruths, S
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© 2017 The Authors Context: Dying patients commonly experience potentially distressing symptoms. Palliative care guidelines recommend opioids, anticholinergics, antipsychotics, and benzodiazepines for symptom relief. Objectives: The objective of this study was to systematically review the effectiveness and safety of palliative drug treatment in the last days of life of adult patients, focusing on the management of pain, dyspnea, anxiety, restlessness, and death rattle. Methods: A systematic search of the literature was published before December 2016 in PubMed/MEDLINE, Embase, CINAHL, PsycINFO, Cochrane, ClinicalTrials.gov, and SveMed+. Studies on safety or effectiveness of drug therapy in dying adults with at least one outcome on symptom control, adverse effects, or survival were included. Data for included studies were extracted. Study quality was assessed using the Effective Public Health Practice Quality assessment tool for quantitative studies. Results: Of the 5940 unique titles identified, 12 studies met the inclusion criteria. Five studies assessed anticholinergics for death rattle, providing no evidence that scopolamine hydrobromide and atropine were superior to placebo. Five studies examined drugs for dyspnea, anxiety, or terminal restlessness, providing some evidence supporting the use of morphine and midazolam. Two studies examined opioids for pain, providing some support for morphine, diamorphine, and fentanyl. Eight studies included safety outcomes, revealing no important differences in adverse effects between the interventions and no evidence for midazolam shortening survival. Conclusion: There is a lack of evidence concerning the effectiveness and safety of palliative drug treatment in dying patients, and the reviewed evidence provides limited guidance for clinicians to assist in a distinct and significant phase of life.
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- 2018
23. Teoría de la decisión y cribado del Síndrome de Down: cálculo individualizado del dintel de normalidad
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LOPEZ, L, PONT, L, and BORRUEL, J
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- 2017
24. Exposition de moules marines au diclofénac : effet sur les prostaglandines et produits de biotransformation chez Mytilus galloprovincialis
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Bonnefille, B., Courant, F., Arpin-Pont, L., Vacher, S., Picot-Groz, M, Fenet, H., Gomez, Elena, Hydrosciences Montpellier (HSM), and Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Recherche pour le Développement (IRD)-Université Montpellier 2 - Sciences et Techniques (UM2)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)
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[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2016
25. Écoulements et flux de nutriments dans la Réserve naturelle nationale des Sagnes de La Godivelle: peut-on conserver une tourbière sans comprendre le fonctionnement de son bassin versant ?
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Poiraud, Alexandre, Goubet, Pierre, Pont, L., Theveniaud, Estelle, Laboratoire de Géographie Physique et Environnementale (GEOLAB), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Université Clermont Auvergne (UCA)-Institut Sciences de l'Homme et de la Société (IR SHS UNILIM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut Sciences de l'Homme et de la Société (IR SHS UNILIM), and Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)
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[SDE] Environmental Sciences ,[SDE]Environmental Sciences ,ComputingMilieux_MISCELLANEOUS - Abstract
International audience
- Published
- 2016
26. Predicted and measured concentrations of venlafaxine and its metabolites in a coastal zone receiving treated wastewaters
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Arpin-Pont, L., Anne Piram, Dominique Munaron, Annie Fiandrino, Manuel Martínez-Bueno, Mathieu, O., Elena Gomez, Hélène Fenet, Hydrosciences Montpellier (HSM), Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Recherche pour le Développement (IRD)-Université Montpellier 2 - Sciences et Techniques (UM2)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Contaminants Émergents (ContEm), Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Recherche pour le Développement (IRD)-Université Montpellier 2 - Sciences et Techniques (UM2)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Recherche pour le Développement (IRD)-Université Montpellier 2 - Sciences et Techniques (UM2)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Université de Montpellier (UM), CHU Montpellier, Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), and Aiello, Mélisande
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fungi ,[SDU.STU] Sciences of the Universe [physics]/Earth Sciences ,[SDU.STU.HY] Sciences of the Universe [physics]/Earth Sciences/Hydrology ,[SDU.STU]Sciences of the Universe [physics]/Earth Sciences ,[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology - Abstract
International audience; Parent compounds and metabolites excreted in wastewater are inconstantly eliminated in WTPs and therefore are rejected mainly in surface water. However, the coastal environment suffers from pollution generated by inland activities which discharge their wastes into the sea via streams, rivers and wastewater marine outfalls. The low levels reported in the marine environment encourage the development of adapted methodologies to estimate predicted environmental concentrations (PECs). In the present work, the occurrence of VLF and its major human metabolites was investigated at a Mediterranean coastal site directly impacted by a submarine outfall. Concentrations of VLF and its metabolites were measured in the different compartments i.e. in water with passive sampler, sediment and mussels. Predicted concentrations of VLF and its main human metabolites were estimated in seawater taking into account the sold amounts of VLF, its human metabolism and the diffusion and dilution of the compounds in the coastal zone using an adapted hydrodynamic model (MARS 3D) developed by Ifremer. In seawater, estimated concentrations were in a good agreement with measured levels. Moreover, concentrations in mussels were estimated using concentrations estimated in seawater and a bioconcentration factor (BCF) linear model described in the literature for marine mussels. Estimated concentrations in biota were then compared to the concentrations in mussels detected at the studied site. Concentrations estimated with the BCF model were overestimated compared to measured concentrations, which could be explained by a possible metabolism of these compounds by mussels, not taken into account in the estimations. Moreover, attenuation mechanisms such as sorption on suspended matter could explain a lower availability of compounds for mussels in the water column and a lower bioconcentration in organisms than those expected. Studies on sorption mechanismsand metabolism of these compounds in mussels should be further performed, in order to improve these estimations. As organisms are long-term exposed to low concentrations of pharmaceuticals, possible effects could be observed. The use of sensitive approaches, such as “omics” approaches, already used for other pollutants such as heavy metals, could help obtain this information.
- Published
- 2015
27. Nurse practitioner prescribing in Australia: A comprehensive literature review.
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Fong, J, Buckley, T, Cashin, A, Pont, L, Fong, J, Buckley, T, Cashin, A, and Pont, L
- Abstract
In Australia, the nurse practitioner (NP) obtained prescriptive authority in some jurisdictions in 2001. One of the key aspects in which the scope of NPs differs from Registered Nurses (RNs) relates to the legal privilege to prescribe medications. Although NPs have had prescriptive authority in Australia since 2001, with access to the Commonwealth subsidy scheme (PBS) since 2010, little is known about NPs prescriptive patterns or outcomes of prescriptive practice.The aim of this scoping review was to examine the extent, range and nature of research conducted in relation to NP prescribing in the Australian health context as well as identify gaps in the existing literature. Whilst considerable research has been undertaken on medical prescribing, to date there is no published review of studies regarding NP prescribing in the Australian context.A structured search of the literature was undertaken using permutations of the following key words ’nurse practitioner prescribing Australia’, ’nurse practitioner and prescribing’, ’advanced practice nurse and prescribing’, ’nurse practitioner and Australia’. Databases where searched from January 2000 to January 2016. Databases searched include PsycInfo, Pubmed, CINAHL and Medline.There are a number of distinguishing features of NP prescribing practices in the Australian context. Little is known about the prescribing behaviours of critical care NPs in both the international and Australian context. Key themes identified were: barriers to prescribing, attitudes to NP prescribing, frequency of prescribing, types of medications prescribed, prescribing practice behaviours and confidence in prescribing.The impact of legislative changes on Australian NPs clinical practice and service delivery is still evolving. This review should create impetus for further research to determine the outcomes of NP prescribing on both patient and health service outcomes in the Australian healthcare context including critical care settings.
- Published
- 2017
28. Challenges in the Management of Hypertension in Older Populations.
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Islam, MS, Pont, L, Alhawassi, T, Islam, MS, Pont, L, and Alhawassi, T
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The prevalence of hypertension increases with age making it a significant health concern for older persons. Aging involves a range of physiological changes such as increases in arterial stiffness, widening pulse pressure, changes in renin and aldosterone levels, decreases in renal salt excretion, declining in renal function, changes in the autonomic nervous system sensitivity and function and changes to endothelial function all of which may not only affect blood pressure but may also affect individual response to pharmacotherapy used to manage hypertension and prevent end organ damage and other complications associated with poor blood pressure control.Unlike many chronic conditions where there is limited evidence for management in older populations, there is good evidence regarding the management of hypertension in the elderly. The findings from multiple large, robust trials have provided a solid evidence-base regarding the management of hypertension in older adults, showing that reduction of blood pressure in older hypertensive populations is associated with reduced mortality and morbidity. Diuretics, agents action on the renin angiotensin system, beta blockers and calcium channel blockers have all been well studied in older populations both in view of the benefits associated with blood pressure lowering and the risks associated with associated adverse events. While all antihypertensive agents will lower blood pressure, when managing hypertension in older persons the choice of agent is dependent not only on the ability to lower blood pressure but also on the potential for harm with older persons. Understanding such potential harms in older populations is essential with older persons experiencing increased sensitivity to many of the adverse effects such as dizziness associated with the use of antihypertensive agents.Despite the wealth of evidence regarding the benefits of managing hypertension in the old and very old, a significant proportion of older individuals wi
- Published
- 2017
29. Effect of humour therapy on psychotropic medication use in nursing homes.
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Leow, JB, Pont, L, Low, L-F, Leow, JB, Pont, L, and Low, L-F
- Abstract
The aim of this study was to assess the effect of Play Up humour therapy on antipsychotic, benzodiazepine and antidepressant use in Australian nursing homes.Play Up is a humour therapy program that has been implemented in Australian nursing homes. This study was an uncontrolled retrospective review of psychotropic medication charts of 406 residents in thirty-three nursing homes before and after 12 weeks of participation in Play Up. Prevalence and mean daily equivalent doses of psychotropic medication use were analysed.There were significant reductions from before to after the Play Up program in the prevalence of any psychotropic medication use, antipsychotic use and benzodiazepine use (P = 0.001, 0.02, 0.007, respectively). Mean daily dose equivalents of pro re nata (PRN) antipsychotics and PRN benzodiazepines significantly reduced over time (P = 0.007; P = 0.001).Play Up was associated with an overall decline in the use of psychotropic medications. Further trials are required to confirm and better define this association.
- Published
- 2016
30. Drug utilization and medication costs at the end of life.
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Pont, L, Jansen, K, Schaufel, MA, Haugen, DF, Ruths, S, Pont, L, Jansen, K, Schaufel, MA, Haugen, DF, and Ruths, S
- Abstract
In the end stages of life, drug treatment goals shift to symptom control and quality of life and as such changes in drug utilization are expected. The aim of this paper is to review the extent to which costs are considered in drug utilization research at the end of life, with a particular focus on the outcome measures being used. This systematic review identified seven studies across varied settings studies reporting both drug utilization and medication cost outcome measures. The main factors identified that impacted medication use and cost were the time period considered and the provision of specialist palliative care services. Combining drug utilization and medication cost outcomes is critical for the allocation of healthcare resources and the development of a sound health policy.
- Published
- 2016
31. Assessment of quality of prescribing using quality indicators
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Denig, P, Haaijer‐Ruskamp, F, Pont, L, Denig, P, Haaijer‐Ruskamp, F, and Pont, L
- Published
- 2016
32. Automation bias in electronic prescribing.
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Lyell, David, Magrabi, Farah, Raban, Magdalena Z., Pont, L. G., Baysari, Melissa T., Day, Richard O., and Coiera, Enrico
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DIGITAL resources on prescription drugs ,DECISION support systems -- Medical applications ,MEDICAL prescriptions ,COMPUTERS in medicine ,MEDICAL informatics ,COMPUTER network resources ,MEDICATION error prevention ,INFORMATION storage & retrieval systems ,MEDICAL databases ,AUTOMATION ,DECISION support systems ,MEDICAL students ,STANDARDS - Abstract
Background: Clinical decision support (CDS) in e-prescribing can improve safety by alerting potential errors, but introduces new sources of risk. Automation bias (AB) occurs when users over-rely on CDS, reducing vigilance in information seeking and processing. Evidence of AB has been found in other clinical tasks, but has not yet been tested with e-prescribing. This study tests for the presence of AB in e-prescribing and the impact of task complexity and interruptions on AB.Methods: One hundred and twenty students in the final two years of a medical degree prescribed medicines for nine clinical scenarios using a simulated e-prescribing system. Quality of CDS (correct, incorrect and no CDS) and task complexity (low, low + interruption and high) were varied between conditions. Omission errors (failure to detect prescribing errors) and commission errors (acceptance of false positive alerts) were measured.Results: Compared to scenarios with no CDS, correct CDS reduced omission errors by 38.3% (p < .0001, n = 120), 46.6% (p < .0001, n = 70), and 39.2% (p < .0001, n = 120) for low, low + interrupt and high complexity scenarios respectively. Incorrect CDS increased omission errors by 33.3% (p < .0001, n = 120), 24.5% (p < .009, n = 82), and 26.7% (p < .0001, n = 120). Participants made commission errors, 65.8% (p < .0001, n = 120), 53.5% (p < .0001, n = 82), and 51.7% (p < .0001, n = 120). Task complexity and interruptions had no impact on AB.Conclusions: This study found evidence of AB omission and commission errors in e-prescribing. Verification of CDS alerts is key to avoiding AB errors. However, interventions focused on this have had limited success to date. Clinicians should remain vigilant to the risks of CDS failures and verify CDS. [ABSTRACT FROM AUTHOR]- Published
- 2017
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33. In vitroscreening of clinical drugs identifies sensitizers of oncolytic viral therapy in glioblastoma stem-like cells
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Berghauser Pont, L M E, Balvers, R K, Kloezeman, J J, Nowicki, M O, van den Bossche, W, Kremer, A, Wakimoto, H, van den Hoogen, B G, Leenstra, S, Dirven, C M F, Chiocca, E A, Lawler, S E, and Lamfers, M L M
- Abstract
Oncolytic viruses (OV) have broad potential as an adjuvant for the treatment of solid tumors. The present study addresses the feasibility of clinically applicable drugs to enhance the oncolytic potential of the OV Delta24-RGD in glioblastoma. In total, 446 drugs were screened for their viral sensitizing properties in glioblastoma stem-like cells (GSCs) in vitro.Validation was done for 10 drugs to determine synergy based on the Chou Talalay assay. Mechanistic studies were undertaken to assess viability, replication efficacy, viral infection enhancement and cell death pathway induction in a selected panel of drugs. Four viral sensitizers (fluphenazine, indirubin, lofepramine and ranolazine) were demonstrated to reproducibly synergize with Delta24-RGD in multiple assays. After validation, we underscored general applicability by testing candidate drugs in a broader context of a panel of different GSCs, various solid tumor models and multiple OVs. Overall, this study identified four viral sensitizers, which synergize with Delta24-RGD and two other strains of OVs. The viral sensitizers interact with infection, replication and cell death pathways to enhance efficacy of the OV.
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- 2015
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34. Plant-based drug delivery systems in respiratory diseases
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Mehta, M, Sharma, P, Kaur, S, Dhanjal, DS, Singh, B, Vyas, M, Gupta, G, Chellappan, DK, Nammi, S, Singh, TG, Dua, K, Satija, S, Dua, K, Hansbro, P, Wadhwa, R, Haghi, M, Pont, L, and Williams, K
- Published
- 2020
35. Pharmacokinetics and pharmacodynamics of the advanced drug delivery systems
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Zeeshan, F, Dua, K, Dua, K, Hansbro, P, Wadhwa, R, Haghi, M, Pont, L, and Williams, K
- Published
- 2020
36. Comprehensive Characterization of Raw and Processed Quinoa from Conventional and Organic Farming by Label-Free Shotgun Proteomics.
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Galindo-Luján R, Pont L, Minic Z, Berezovski MV, Quispe F, Sanz-Nebot V, and Benavente F
- Abstract
Quinoa is widely recognized for its exceptional nutritional properties, particularly its complete protein content. This study, for the first time, investigates the effects of processing methods (boiling and extrusion) and farming conditions (conventional and organic) on the proteomic profile. Following a label-free shotgun proteomics approach, a total of 1796 proteins were identified and quantified across all quinoa samples. Regarding processing, both boiling and extrusion produced protein extracts with lower total protein content, with the number of identified proteins decreasing from 1695 in raw quinoa to 957 in processed quinoa. Boiling led to a reduction in protein diversity and expression, while extrusion, which involves high temperatures and pressures, specifically decreased the abundance of high molecular mass proteins. Concerning cultivation practices, organic farming was associated with a broader protein diversity, especially proteins related to translation (28 vs 5%), while conventional farming showed a higher abundance of catalytic and enzymatic proteins (67 vs 46%). These findings highlight the distinct proteomic changes induced by different processing methods and farming conditions, offering valuable insights to manage quinoa's nutritional, bioactive, and functional properties across various production practices.
- Published
- 2025
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37. Synergy of Analytical Characterization and Biocompatible Extractions for the Enhancement of High-Quality Biorefinery Products from Medicago sativa .
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Zaccarelli A, Mattina B, Pont L, Benavente F, Zanotti I, Cioffi F, and Elviri L
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- Antioxidants chemistry, Flavonoids chemistry, Flavonoids analysis, Plant Proteins chemistry, Chromatography, High Pressure Liquid, Proteomics, Phenols chemistry, Medicago sativa chemistry, Plant Extracts chemistry, Plant Extracts isolation & purification, Tandem Mass Spectrometry
- Abstract
This study presents the development of an analytical characterization strategy tailored to end products derived from an alfalfa ( Medicago sativa )-based biorefinery with particular emphasis on protein concentrates and phenolic-enriched fractions. Our approach began with a comprehensive full-factorial experimental design aimed at optimizing the extraction process, taking care to design a biocompatible extraction protocol. Liquid chromatography with tandem mass spectrometry (LC-MS/MS) techniques were used to characterize the molecular profile of the extracts. In particular, the extracts showed a significant relative abundance of flavonoids and isoflavonoids in both their aglycone and glycosylated forms, in which antioxidant activity was evaluated. In addition, we elucidated the proteomic profiles of the protein concentrates. This proteomic characterization served as a valuable resource for understanding the differences between these end products, providing insights that can guide informed decisions about their potential applications.
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- 2025
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38. A comprehensive investigation of Clerodendrum Infortunatum Linn. using LC-QTOF-MS/MS metabolomics as a promising anti-alzheimer candidate.
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Atef F, Abdelkawy MA, Eltanany BM, Pont L, Fayez AM, Abdelhameed MF, Benavente F, Younis IY, and Otify AM
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- Animals, Rats, Male, Chromatography, Liquid methods, Acetylcholinesterase metabolism, Scopolamine, Hippocampus drug effects, Hippocampus metabolism, Disease Models, Animal, Cholinesterase Inhibitors pharmacology, Cholinesterase Inhibitors therapeutic use, Alzheimer Disease drug therapy, Alzheimer Disease metabolism, Clerodendrum chemistry, Plant Extracts pharmacology, Plant Extracts therapeutic use, Plant Extracts chemistry, Metabolomics methods, Tandem Mass Spectrometry methods
- Abstract
Alzheimer's disease (AD) poses a global health challenge, demanding innovative approaches for effective treatments. Clerodendrum infortunatum Linn. (Lamiaceae) is a shrub traditionally used as a medicinal plant to treat inflammation, skin diseases, and bronchitis. This study aims to identify the main bioactive metabolites in C. infortunatum using LC-QTOF-MS/MS and investigate its potential in protecting against cognitive decline in rats with scopolamine-induced AD disease. Metabolite profiling was performed on the methanol extract of the plant's aerial parts using LC-QTOF-MS/MS. The inhibitory activity of the acetylcholinesterase enzyme was measured in vitro. To evaluate the cognitive effects, the methanol extract was orally administered at three doses (100, 200, and 400 mg/kg) to scopolamine-induced AD rats, and their cognitive functions were assessed using the novel object recognition test. Additionally, acetylcholinesterase enzyme activity, as well as the levels of acetylcholine, dopamine, noradrenaline, glutathione, malondialdehyde, tumor necrosis factor-α, interleukin-1β, and amyloid-β in the rat hippocampus, were measured using ELISA, followed by histopathological evaluation. A total of 79 metabolites, spanning various chemical classes, such as organic acids, phenolic acids, phenylpropanoids and phenylethanoids, flavonoids, coumarins, other phenolics, and fatty acids and their derivatives, were identified. The results showed that the extract promoted enhanced cognitive functions in the novel object recognition test. Scopolamine administration significantly altered the acetylcholinesterase enzyme activity and biomarker levels in the rat's hippocampus. However, treatment with C. infortunatum at 200 and 400 mg/kg almost restored these neurotransmitter levels to normal, which was further confirmed by histopathological analysis. This study demonstrates the therapeutic potential of C. infortunatum in mitigating cognitive decline in AD, with its first metabolite profiling revealing a range of bioactive compounds. The extract improved cognitive function in scopolamine-induced AD rats, restored acetylcholinesterase activity, normalized neurotransmitter levels, and reduced oxidative stress and inflammation. These findings suggest that C. infortunatum is a promising candidate for the development of natural therapies targeting AD., Competing Interests: Declarations. Competing interests: The authors declare no competing interests. Ethics approval and consent to participate: The experiments adhered to the “Guide for the Care and Use of Laboratory Animals” published by the US National Institutes of Health (NIH Publication No 85–23, 2011). Approval was granted by the Research Ethics Committee of the Faculty of Pharmacy of Cairo University (approval code: MP (3118)). ARRIVE guidelines: The study is reported in accordance with ARRIVE guidelines. A statement naming the person who identified the plant: The aerial parts of C. infortunatum were authenticated by Agriculture Engineer Therese Labib, a plant taxonomy consultant of the Ministry of Agriculture (Giza, Egypt). Voucher specimen statement: The plant material was collected with permission in compliance with national guidelines from the Agriculture Research Center, Giza, Egypt at “9 Cairo University Road, Giza District, Giza Governorate”. Samples of the plant material were deposited at the herbarium of the Faculty of Pharmacy, Cairo University, Cairo, Egypt (sample No.10.3.2021)., (© 2024. The Author(s).)
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- 2025
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39. Metabolomics analysis of Cucumis melo var. flexuosus organs in correlation to its anti-inflammatory activity aided by chemometrics.
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El-Sayed HM, Rasheed DM, Mahrous EA, Eltanany BM, Goda ZM, Pont L, Benavente F, and Abdel-Sattar E
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- Mice, Animals, RAW 264.7 Cells, Chemometrics methods, Tandem Mass Spectrometry methods, Plant Leaves chemistry, Phytochemicals pharmacology, Phytochemicals analysis, Seeds chemistry, Macrophages drug effects, Macrophages metabolism, Flavonoids pharmacology, Flavonoids analysis, Fruit chemistry, Anti-Inflammatory Agents pharmacology, Anti-Inflammatory Agents analysis, Cucumis melo chemistry, Plant Extracts pharmacology, Plant Extracts chemistry, Metabolomics methods
- Abstract
Snake melon (Cucumis melo var. flexuosus, CM) is a gourd with health-promoting nutritional traits and unexplored phytochemicals. This study aims to comprehensively investigate the phytoconstituents in the fruits, leaves, roots, seeds, and stems of CM, using liquid chromatography-quadrupole time-of-flight tandem mass spectrometry. Consequently, 118 metabolites were identified, encompassing phenolic compounds, flavonoids, megastigmanes, lignans, cucurbitacins, and fatty acids. Multivariate data analysis revealed differences in the metabolite composition of CM organs and correlated these variations with the potential in-vitro anti-inflammatory properties assessed against RAW 264.7 macrophages through the down-regulation of cyclo-oxygenase-Ⅱ, nuclear factor-kappa B, and tumor necrosis factor-α. The results indicated that leaf and seed extracts showed the highest anti-inflammatory activity due to their enrichment in several flavonoids, phenolic glycosides, and a megastigmane. These findings emphasize the health benefits of CM organs as potential functional foods and functional food by-products, serving as a natural source for developing new anti-inflammatory agents., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
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- 2025
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40. Cognitive-enhancing effect of Cordia dichotoma fruit on scopolamine-induced cognitive impairment in rats: metabolite profiling, in vivo , and in silico investigations.
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Hussein HM, Abdel Kawy MA, Eltanany BM, Pont L, Benavente F, Fayez AM, Alnajjar R, Al-Karmalawy AA, Abdelmonem AR, and Mohsen E
- Abstract
Many plants are reported to enhance cognition in amnesic-animal models. The metabolite profile of Cordia dichotoma fruit methanolic extract (CDFME) was characterized by LC-QTOF-MS/MS, and its total phenolics content (TPC) and total flavonoids content (TFC) were determined. In parallel, its cognitive-enhancing effect on scopolamine (SCOP)-induced AD in rats was evaluated. The TPC and TFC were 44.75 ± 1.84 mg gallic acid equiv. g
-1 sample and 5.66 ± 0.67 mg rutin equiv. g-1 sample, respectively. In total, 81 metabolites were identified, including phenolic acids, lignans, coumarins, amino acids, fatty acids, and their derivatives, fatty acid amides, polar lipids, terpenoids, and others. The most abundant metabolites identified were quinic acid, caffeoyl-4'-hydroxyphenyllactate, rosmarinic acid, and oleamide. CDFME (200 mg kg-1 ) was found to significantly enhance recognition memory in the novel object recognition test. Furthermore, it nearly corrected acetylcholinesterase (AChE), acetylcholine, noradrenaline, and dopamine hippocampal levels, which changed due to SCOP. Further in silico validation of the in vivo results was conducted, focusing on the most abundant metabolites. Molecular docking showed that rosmarinic acid, caffeoyl-4'-hydroxyphenyllactate, sebestenoid C, and sagerinic acid exhibited the greatest affinity for receptor binding against AChE. However, molecular dynamics and mechanics calculations clarified that the complex of caffeoyl-4'-hydroxyphenyllactate with AChE was the most stable one. This study represents the first comprehensive metabolite profiling of CDFME to assess its cognition-enhancing effect both in vivo and in silico . These results demonstrate that CDFME protects against SCOP-induced cognitive impairment. Thus, additional preclinical and clinical studies on CDFME may provide an attractive approach in pharmacotherapy and AD prophylaxis., Competing Interests: Authors declare no conflicts of interest., (This journal is © The Royal Society of Chemistry.)- Published
- 2024
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41. Over- and Underuse of Proton Pump Inhibitors in Nursing Homes: A Multisite Longitudinal Cohort Study.
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Wabe N, Urwin R, Meulenbroeks I, Seaman K, Raban MZ, Neupane S, Nguyen A, Silva SM, Timothy A, Batool N, Pont L, and Westbrook JI
- Abstract
Objectives: Proton pump inhibitors (PPIs) are used to manage excess stomach acid production and provide gastroprotection from bleeding risk-increasing drugs (BRIDs). We aimed to determine the prevalence of potentially inappropriate PPI use in nursing homes and associated factors., Design: Longitudinal cohort study using 8 years of electronic data., Setting and Participants: The study included 6439 permanent residents aged ≥65 years from 34 homes managed by 2 aged care providers in New South Wales., Method: Continuous PPI use (>12 weeks) in the absence of long-term BRID (>30 days) use was deemed inappropriate overuse whereas long-term BRID use without concomitant PPI for gastroprotection was classified as inappropriate underuse. Binary logistic regression was used to determine factors associated with PPI overuse., Results: Fifty-four percent of residents (n = 3478) received a PPI, with a median duration of 46 weeks, whereas 58.5% (n = 3770) were long-term BRID users. Four of 5 PPI users (83.6%, n = 2906) used PPIs for >12 weeks, and after accounting for BRID use, the prevalence of inappropriate PPI overuse was 27.1% (n = 944). PPI overuse was 4 times more likely in residents in provider A compared with residents in provider B [odds ratio (OR) 4.08, 95% CI 2.73-6.09]. The prevalence of PPI underuse was 38.5% (n = 1452)., Conclusions and Implications: One in 4 PPI users exceeded the clinically recommended duration, whereas 2 in 5 long-term BRID users did not receive a PPI for gastroprotection. There is a pressing need for tailored interventions, such as medication reviews and deprescribing initiatives, to improve PPI prescribing., Competing Interests: Disclosure The authors declare no conflicts of interest., (Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)
- Published
- 2024
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42. Patient demographics and psychotropic medication prescribing in Australian general practices: pre- and during COVID-19 pandemic.
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Kibret GD, Kamalakkannan A, Thomas J, Sezgin G, Hardie RA, Pont L, McGuire P, Pearce C, and Georgiou A
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- Humans, Male, Female, Middle Aged, Adult, Australia epidemiology, Young Adult, Aged, Practice Patterns, Physicians' statistics & numerical data, SARS-CoV-2, Pandemics, Sex Factors, Age Factors, Antidepressive Agents therapeutic use, COVID-19 epidemiology, Psychotropic Drugs therapeutic use, General Practice statistics & numerical data
- Abstract
Introduction Mental health conditions, such as depression, anxiety, and psychological distress in the adult population significantly increased during the COVID-19 pandemic. However, the rates of prescribing psychotropic medications in adults during the COVID-19 period have not been well explored. Aim The aim of this study was to examine the association between demographic characteristics and rates of prescribing psychotropic medications to general practice patients during 2018-2022. Methods A total of 154 528 general practice patients aged 20 years and above were included in the study. A mixed effects negative binomial regression model was employed and incidence risk ratios (IRRs) with corresponding 95% confidence interval (CI) are presented to measure the association of demographic characteristics with rates of prescribing psychotropic medication. Results Over half (56.2%) of study subjects were female and 41.4% were aged between 20 and 39 years. Males had lower prescribing rates of antidepressants (IRR = 0.95; 95% CI: 0.94, 0.97) and hypnotics and sedatives (IRR = 0.97; 95% CI: 0.96, 0.99) than females. People in the age group 60+ years (compared with age group 20-39 years) and those in low and middle socio-economic status (SES) categories (compared with high SES) had higher rates of prescribing psychotropic medication. Conclusion Females, people aged 60+ years, and people with low and middle SES had higher prescribing rates of psychotropic medication. A consistent increase in prescribing rates over time, particularly during the COVID-19 pandemic, was observed. It is important that health care planners and policy makers monitor and account for population diversity and equity.
- Published
- 2024
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43. A Comprehensive Review on Capillary Electrophoresis-Mass Spectrometry in Advancing Biomolecular Research.
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Pont L, Vergara-Barberán M, and Carrasco-Correa EJ
- Abstract
This review provides an in-depth exploration of capillary electrophoresis-mass spectrometry (CE-MS) in biomolecular research from 2020 to 2024. CE-MS emerges as a versatile and powerful tool due to its numerous advantages, facilitating the analysis of various biomolecules, including proteins, peptides, oligonucleotides, and other metabolites, such as lipids, carbohydrates, or amines, among others. The review extends to various CE modes and interfaces for the CE-MS coupling, offering comprehensive insights into their applications within biomolecular research. Furthermore, it effectively summarizes the conditions employed in CE-MS while also addressing critical aspects such as sample preparation requirements. Despite its advantages, the review highlights a gap between discovery and practical implementation, underscoring the need for large-scale validation and method standardization to fully realize the potential of CE-MS in biomolecular research., (© 2024 The Author(s). Electrophoresis published by Wiley‐VCH GmbH.)
- Published
- 2024
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44. Uncovering the therapeutic potential of green pea waste in breast cancer: a multi-target approach utilizing LC-MS/MS metabolomics, molecular networking, and network pharmacology.
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Khalil AM, Sabry OM, El-Askary HI, El Zalabani SM, Eltanany BM, Pont L, Benavente F, Mohamed AF, and Fayek NM
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- Humans, Chromatography, Liquid, Female, MCF-7 Cells, Cell Line, Tumor, Antineoplastic Agents, Phytogenic pharmacology, Liquid Chromatography-Mass Spectrometry, Pisum sativum chemistry, Breast Neoplasms drug therapy, Tandem Mass Spectrometry, Plant Extracts pharmacology, Plant Extracts chemistry, Network Pharmacology, Metabolomics
- Abstract
BACKGROUND PISUM SATIVUM: (PS) is a universal legume plant utilized for both human and animal consumption, particularly its seeds, known as green peas. The processing of PS in food industries and households produces a significant amount of waste that needs to be valorized., Methods: In this study, the metabolite profiles of the 70% ethanolic extracts of PS wastes, namely peels (PSP) and a combination of leaves and stems (PSLS), were investigated by liquid chromatography-electrospray ionization-quadrupole time-of-flight tandem mass spectrometry (LC-ESI-QTOF-MS/MS) followed by molecular networking., Results: Different classes of metabolites were identified, being flavonoids and their derivatives, along with phenolic acids, the most abundant categories. Additionally, a comprehensive network pharmacology strategy was applied to elucidate potentially active metabolites, key targets, and the pathways involved in cytotoxic activity against breast cancer. This cytotoxic activity was investigated in MCF-7 and MCF-10a cell lines. Results revealed that PSLS extract exhibited a potent cytotoxic activity with a good selectivity index (IC
50 = 17.67 and selectivity index of 3.51), compared to the reference drug doxorubicin (IC50 = 2.69 µg/mL and selectivity index of 5.28). Whereas PSP extract appeared to be less potent and selective (IC50 = 32.92 µg/mL and selectivity index of 1.62). A similar performance was also observed for several polyphenolics isolated from the PSLS extract, including methyl cis p-coumarate, trans p-coumaric acid, and liquiritigenin/ 7-methyl liquiritigenin mixture. Methyl cis p-coumarate showed the most potent cytotoxic activity against MCF-7 cell line and the highest selectivity (IC50 = 1.18 µg/mL (6.91 µM) and selectivity index of 27.42). The network pharmacology study revealed that the isolated compounds could interact with several breast cancer-associated protein targets including carbonic anhydrases 1, 2, 4, 9, and 12, as well as aldo-keto reductase family 1 member B1, adenosine A3 receptor, protein tyrosine phosphatase non-receptor type 1, and estrogen receptor 2., Conclusion: The uncovered therapeutic potential of PSLS and its metabolite constituents pave the way for an efficient and mindful PS waste valorization, calling for further in-vitro and in-vivo research., (© 2024. The Author(s).)- Published
- 2024
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45. Comparative pharmacokinetic evaluation of nanoparticle-based vs. conventional pharmaceuticals containing statins in attenuating dyslipidaemia.
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Cordina J, Ahmad I, Nath R, Abdul Rahim B, Van A, Al-Zuhairi D, Williams K, Pont L, Catanzariti R, Mehndiratta S, Valdivia-Olivares RY, De Rubis G, and Dua K
- Subjects
- Humans, Animals, Nanoparticle Drug Delivery System chemistry, Dyslipidemias drug therapy, Hydroxymethylglutaryl-CoA Reductase Inhibitors pharmacokinetics, Hydroxymethylglutaryl-CoA Reductase Inhibitors administration & dosage, Nanoparticles, Biological Availability
- Abstract
Dyslipidaemia describes the condition of abnormal lipid levels in a person's bloodstream. Since the 1980s, statin medications have been used to treat dyslipidaemia and other comorbidities, such as stroke risk and atherosclerosis. Statin medications were initially synthesised from fungal metabolites, but many synthetic statin drugs have been manufactured since then. Statin medication is quite effective in reducing total cholesterol levels in the bloodstream, but it has limitations. Due to their poor water solubility, statin drugs possess poor oral bioavailability, which hinders their therapeutic efficacy. Nanoparticle drug delivery technology has been shown to improve the pharmacokinetic profiles of many drug classes, and statins have great potential to benefit from this. This paper reviewed the currently available literature on nanoparticle statin medication and evaluated the possible improvements that can be made to the pharmacokinetic profile and efficacy of conventional statin medication. It was found that the oral bioavailability of nanoparticle medication consistently outperformed conventional medication by up to 400% in some cases. Substantial improvements in time to peak plasma concentration and plasma concentration peaks were also found, and increased periods in circulation before excretion were shown. It was concluded that nanoparticle technology has the potential to completely replace conventional statin medication as it offers more significant benefits with minimal drawbacks. Upon further study and development, the manufacture of nanoparticle statin medication should become feasible enough for large-scale application, which will significantly benefit patients and unburden healthcare systems., (© 2024. The Author(s).)
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- 2024
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46. Matrix-Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry Combined with Chemometrics for Protein Profiling and Classification of Boiled and Extruded Quinoa from Conventional and Organic Crops.
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Galindo-Luján R, Pont L, Quispe F, Sanz-Nebot V, and Benavente F
- Abstract
Quinoa is an Andean crop that stands out as a high-quality protein-rich and gluten-free food. However, its increasing popularity exposes quinoa products to the potential risk of adulteration with cheaper cereals. Consequently, there is a need for novel methodologies to accurately characterize the composition of quinoa, which is influenced not only by the variety type but also by the farming and processing conditions. In this study, we present a rapid and straightforward method based on matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF-MS) to generate global fingerprints of quinoa proteins from white quinoa varieties, which were cultivated under conventional and organic farming and processed through boiling and extrusion. The mass spectra of the different protein extracts were processed using the MALDIquant software (version 1.19.3), detecting 49 proteins (with 31 tentatively identified). Intensity values from these proteins were then considered protein fingerprints for multivariate data analysis. Our results revealed reliable partial least squares-discriminant analysis (PLS-DA) classification models for distinguishing between farming and processing conditions, and the detected proteins that were critical for differentiation. They confirm the effectiveness of tracing the agricultural origins and technological treatments of quinoa grains through protein fingerprinting by MALDI-TOF-MS and chemometrics. This untargeted approach offers promising applications in food control and the food-processing industry., Competing Interests: The authors declare no conflicts of interest.
- Published
- 2024
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47. Identification of cyclooxygenase-II inhibitory saponins from fenugreek wastes: Insights from liquid chromatography-tandem mass spectrometry metabolomics, molecular networking, and molecular docking.
- Author
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Khalil AM, Sabry OM, El-Askary HI, El Zalabani SM, Eltanany BM, Pont L, Benavente F, Elshewy A, and Fayek NM
- Subjects
- Chromatography, Liquid methods, Plant Extracts chemistry, Plant Extracts pharmacology, Cyclooxygenase 2 metabolism, Trigonella chemistry, Saponins chemistry, Saponins pharmacology, Saponins analysis, Molecular Docking Simulation, Tandem Mass Spectrometry methods, Metabolomics methods, Cyclooxygenase 2 Inhibitors pharmacology, Cyclooxygenase 2 Inhibitors chemistry, Cyclooxygenase 2 Inhibitors analysis
- Abstract
Introduction: This research explores sustainable applications for waste generated from fenugreek (Trigonella foenum-graecum), a plant with both nutritional and medicinal uses. The study specifically targets waste components as potential sources of nutrients and bioactive compounds., Objectives: The focus is to conduct detailed metabolic profiling of fenugreek waste, assess its anti-inflammatory properties by studying its cyclooxygenase (COX) inhibitory effect, and correlate this effect to the metabolite fingerprint., Materials and Methods: Ethanolic extracts of fenugreek fruit pericarp and a combination of leaves and stems were subjected to untargeted metabolic profiling using liquid chromatography-mass spectrometry integrated with online database searches and molecular networking as an effective dereplication strategy. The study also scrutinized the COX inhibitory capabilities of these extracts and saponin-rich fractions prepared therefrom. Molecular docking was employed to investigate the specific interactions between the identified saponins and COX enzymes., Results: The analysis led to the annotation of 81 metabolites, among which saponins were predominant. The saponin-rich fraction of the fruit pericarp extract displayed the strongest COX-II inhibitory activity in the in vitro inhibition assay (IC
50 value of 81.64 ± 3.98 μg/mL). The molecular docking study supported the selectivity of the identified saponins towards COX-II. The two major identified saponins, namely, proto-yamogenin 3-O-[deoxyhexosyl (1 → 2)] [hexosyl (1 → 4)] hexoside 26-O-hexoside and trigofenoside A, were predicted to have the highest affinity to the COX-II receptor site., Conclusion: In the present study, we focused on the identification of COX-II inhibitory saponins in fenugreek waste through an integrated approach. The findings offer valuable insights into potential anti-inflammatory and cancer chemoprotective applications of fenugreek waste., (© 2024 John Wiley & Sons Ltd.)- Published
- 2024
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48. Nutritional, molecular, and functional properties of a novel enzymatically hydrolyzed porcine plasma product.
- Author
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Solà-Ginés M, Miró L, Bellver-Sanchis A, Griñán-Ferré C, Pallàs M, Pérez-Bosque A, Moretó M, Pont L, Benavente F, Barbosa J, Rodríguez C, and Polo J
- Subjects
- Animals, Mice, Swine, Hydrolysis, Plasma metabolism, Cytokines metabolism, Antioxidants metabolism, Lipopolysaccharides, Anti-Inflammatory Agents pharmacology, Caenorhabditis elegans metabolism
- Abstract
In the present study, an enzymatically hydrolyzed porcine plasma (EHPP) was nutritionally and molecularly characterized. EHPP molecular characterization showed, in contrast to spray-dried plasma (SDP), many peptides with relative molecular masses (Mr) below 8,000, constituting 73% of the protein relative abundance. IIAPPER, a well-known bioactive peptide with anti-inflammatory and antioxidant properties, was identified. In vivo functionality of EHPP was tested in C. elegans and two different mouse models of intestinal inflammation. In C. elegans subjected to lipopolysaccharide exposure, EHPP displayed a substantial anti-inflammatory effect, enhancing survival and motility by 40% and 21.5%, respectively. Similarly, in mice challenged with Staphylococcus aureus enterotoxin B or Escherichia coli O42, EHPP and SDP supplementation (8%) increased body weight and average daily gain while reducing the percentage of regulatory Th lymphocytes. Furthermore, both products mitigated the increase of pro-inflammatory cytokines expression associated with these challenged mouse models. In contrast, some significant differences were observed in markers such as Il-6 and Tnf-α, suggesting that the products may present different action mechanisms. In conclusion, EHPP demonstrated similar beneficial health effects to SDP, potentially attributable to the immunomodulatory and antioxidant activity of its characteristic low Mr bioactive peptides., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Solà-Ginés et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
- Published
- 2024
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49. Investigation of smoking on the antiplatelet response to clopidogrel: Unravelling the smoker's paradox.
- Author
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Plakogiannis FA, Weidmann J, Fraser B, Kwong J, Asi D, Kumar P, Baldock M, Naamo J, Baluja R, Catanzariti R, Yeung S, Pont L, Williams K, De Rubis G, Dua K, and Bukhari NI
- Subjects
- Humans, Cytochrome P-450 CYP2C19 genetics, Cytochrome P-450 CYP2C19 metabolism, Smokers, Cytochrome P-450 CYP1A2 genetics, Cytochrome P-450 CYP1A2 metabolism, Clopidogrel therapeutic use, Platelet Aggregation Inhibitors therapeutic use, Platelet Aggregation Inhibitors pharmacology, Smoking adverse effects
- Abstract
The intricate relationship between smoking and the effects of the antiplatelet drug clopidogrel has been termed the "smoker's paradox". This paradox details the enhanced efficacy of clopidogrel in smokers compared to non-smokers. This review begins with an exploration of the proposed mechanisms of the smoker's paradox, particularly drawing attention to the induction of cytochrome P450 (CYP) isoenzymes via tobacco smoke, specifically the enzymes CYP1A2 and CYP2C19. Moreover, an investigation of the effects of genetic variability on the smoker's paradox was undertaken from both clinical and molecular perspectives, delving into the effects of ethnicity and genetic polymorphisms. The intriguing role of CYP1A2 genotypes and the response to clopidogrel in smoking and non-smoking populations was examined conferring insight into the individuality rather than universality of the smoker's paradox. CYP1A2 induction is hypothesised to elucidate the potency of smoking in exerting a counteracting effect in those taking clopidogrel who possess CYP2C19 loss of function polymorphisms. Furthermore, we assess the comparative efficacies of clopidogrel and other antiplatelet agents, namely prasugrel and ticagrelor. Studies indicated that prasugrel and ticagrelor provided a more consistent effect and further reduced platelet reactivity compared to clopidogrel within both smoking and non-smoking populations. Personalised dosing was another focus of the review considering patient comorbidities, genetic makeup, and smoking status with the objective of improving the antiplatelet response of those taking clopidogrel. In summation, this review provides insight into multiple areas of research concerning clopidogrel and the smoker's paradox taking into account proposed mechanisms, genetics, other antiplatelet agents, and personalised dosing., Competing Interests: Declaration of Competing Interest The authors of the manuscript “Investigation of smoking on the antiplatelet response to clopidogrel: Unravelling the Smoker’s Paradox.”, submitted to the journal “Pathology – Research and Practice”, have no conflict of interest to declare., (Copyright © 2024 The Authors. Published by Elsevier GmbH.. All rights reserved.)
- Published
- 2024
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50. Decoding epilepsy treatment: A comparative evaluation contrasting cannabidiol pharmacokinetics in adult and paediatric populations.
- Author
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Osman M, Khalil J, El-Bahri M, Swalah Mcdahrou J, Fahda R, Mustafa R, Ooi A, Attayee M, Catanzariti R, Pont L, Williams K, Yeung S, Dua K, De Rubis G, and Loebenberg R
- Subjects
- Humans, Child, Adult, Cannabidiol pharmacokinetics, Cannabidiol therapeutic use, Epilepsy drug therapy, Anticonvulsants pharmacokinetics, Anticonvulsants therapeutic use
- Abstract
Epilepsy is a neurological disorder characterized by overstimulation of neurotransmitters and uncontrolled seizures. Current medications for epilepsy result in adverse effects or insufficient seizure control, highlighting the necessity to develop alternative therapies. Cannabidiol (CBD), derived from cannabis plants, has been popularly explored as an alternative. CBD is shown to have anti-convulsivatng and muscle-relaxing properties, which have been used in patients with epilepsy with promising results. Current research explores varying dosages in either adult or paediatric patients, with little or no comparison between the two populations. In this review, we aim at consolidating this data and comparing the effect and pharmacokinetic properties of CBD across these two patient populations. When comparing the absorption, there was insufficient data to show differences between paediatric and adult patients. Similarly, limited information was available in comparing the distribution of CBD, but a higher volume of distribution was found in the paediatric population. From the metabolism perspective, the paediatric population had a greater success rate when treated with the drug compared to the adult population. In the elimination, there were no clear distinctions in the clearance rate between the two populations. The drug's half-life was highly variable in both populations, with paediatrics having a lower range than adults. In summary, the paediatric population had a more significant reduction in the severity of seizures compared to the adult population upon CBD treatment. The complexity in which CBD operates highlights the need for further studies of the compound to further understand why differences occur between these two populations., Competing Interests: Declaration of competing interest This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors. The authors declare that there are no conflicts of interest., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)
- Published
- 2024
- Full Text
- View/download PDF
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