1
|
Ritwiset A, Maensiri S, Krongsuk S. Insight into molecular structures and dynamical properties of niosome bilayers containing melatonin molecules: a molecular dynamics simulation approach. RSC Adv 2024; 14:1697-1709. [PMID: 38187447 PMCID: PMC10768803 DOI: 10.1039/d3ra07564h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 12/26/2023] [Indexed: 01/09/2024] Open
Abstract
Niosomes represent vesicular carriers capable of encapsulating both hydrophobic and hydrophilic drugs within their inner core or bilayer shell. They are typically composed of non-ionic synthetic surfactants such as sorbitan monostearate (Span60) with the addition of cholesterol (Chol). The physical properties and stability of niosomal vesicles strongly depend on the composition of their bilayers, which plays a significant role in determining the efficiency of drug encapsulation and release in drug delivery systems. In this study, we have explored the interactions between melatonin (Mel) molecules and the niosome bilayer, as well as their resulting physical properties. Molecular dynamics simulations were employed to investigate melatonin-inserted niosome bilayers, both with and without the inclusion of cholesterol. The simulation results revealed that cholesterol notably influences the location of melatonin molecules within the niosome bilayers. In the absence of cholesterol, melatonin tends to occupy the region around the Span60 tail groups. However, in the presence of cholesterol, melatonin is found in the vicinity of the Span60 head groups. Melatonin molecules in niosome bilayers without cholesterol exhibit a more ordered orientation when compared to those in bilayers containing 50 mol% cholesterol. The bilayer structure of the Span60/Mel and Span60/Chol/Mel systems exhibited a liquid-disordered phase (Ld). In contrast, the Span60/Chol bilayer system displays a liquid-ordered phase (Lo) with less fluidity. This study reveals that melatonin induces a disorderly bilayer structure and greater lateral expansion, whereas cholesterol induces an orderly bilayer structure and a more condensed effect. Cholesterol plays a crucial role in condensing the bilayer structure with stronger interactions between Span60 and cholesterol. The addition of 50 mol% cholesterol in the Span60 bilayers not only enhances the stability and rigidity of niosomes but also facilitates the easier release of melatonin from the bilayer membranes. This finding is particularly valuable in the context of preparing niosomes for drug delivery systems.
Collapse
Affiliation(s)
- Aksornnarong Ritwiset
- School of Physics, Institute of Science, Suranaree University of Technology Nakhon Ratchasima 30000 Thailand
| | - Santi Maensiri
- School of Physics, Institute of Science, Suranaree University of Technology Nakhon Ratchasima 30000 Thailand
- Center of Excellence on Advanced Functional Nanomaterials, Suranaree University of Technology Nakhon Ratchasima 30000 Thailand
| | - Sriprajak Krongsuk
- Department of Physics, Faculty of Science, Khon Kaen University Khon Kaen 40002 Thailand
- Institute of Nanomaterials Research and Innovation for Energy (IN-RIE), Khon Kaen University Khon Kaen 40002 Thailand
| |
Collapse
|
2
|
Pérez-Rubio KG, Méndez-Del Villar M, Cortez-Navarrete M. The Role of Garlic in Metabolic Diseases: A Review. J Med Food 2022; 25:683-694. [PMID: 35675656 DOI: 10.1089/jmf.2021.0146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Garlic (Allium sativum L.) is a popular spice that has been widely used for thousands of years in traditional medicine. Several organosulfur compounds in garlic have been linked to its beneficial effects on health. Evidence from preclinical studies and clinical trials supports garlic's antihypertensive, antidiabetic, antiobesity, and hypolipidemic effects. This study aims to summarize clinical trial evidence regarding the effects of garlic on metabolic diseases and its mechanisms of action.
Collapse
Affiliation(s)
- Karina G Pérez-Rubio
- Institute of Experimental and Clinical Therapeutics, Department of Physiology, Health Science University Center, University of Guadalajara, Guadalajara, Jalisco, Mexico
| | - Miriam Méndez-Del Villar
- Multidisciplinary Health Research Center, Biomedical Sciences Department, University Center of Tonala, University of Guadalajara, Tonala, Jalisco, Mexico
| | - Marisol Cortez-Navarrete
- Institute of Experimental and Clinical Therapeutics, Department of Physiology, Health Science University Center, University of Guadalajara, Guadalajara, Jalisco, Mexico
| |
Collapse
|
3
|
Sreekantaswamy SA, Mollanazar N, Butler DC. Gabapentinoids for Pruritus in Older Adults: A Narrative Review. Dermatol Ther (Heidelb) 2021; 11:669-679. [PMID: 33721214 PMCID: PMC8163906 DOI: 10.1007/s13555-021-00513-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Indexed: 12/31/2022] Open
Abstract
There is currently no standardized algorithm for the treatment of chronic pruritus (CP), or itch lasting more than 6 weeks, in adults aged ≥ 65 years. The antiepileptic agents gabapentin and pregabalin, however, are gaining popularity in the dermatologic community for their efficacy in treating CP of neuropathic origin. Yet the lack of literature specifically looking at the safety and efficacy of these medications in older adults results in limited guidance for providers in the safe use of gabapentinoids. In this paper we discuss special considerations and recommendations for treating older adults with gabapentin and pregabalin and explore the possibility for these drugs to ameliorate CP of multiple etiologies.
Collapse
Affiliation(s)
- Shreya A Sreekantaswamy
- San Francisco Department of Dermatology, University of California, San Francisco, CA, USA
- School of Medicine, University of Utah, Salt Lake City, UT, USA
| | - Nicholas Mollanazar
- Department of Dermatology, University of Pennsylvania, Philadelphia, PA, USA
| | - Daniel C Butler
- San Francisco Department of Dermatology, University of California, San Francisco, CA, USA.
| |
Collapse
|
4
|
|
5
|
Chuang K, Patel S. Valproate-Induced Lower Extremity Swelling. Fed Pract 2020; 37:388-390. [PMID: 32908348 PMCID: PMC7473731 DOI: 10.12788/fp.0031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
New-onset severe peripheral edema warrants an extensive evaluation, including congestive heart failure, cirrhosis, nephrotic syndrome, hypoalbuminemia, or lymphatic or venous obstruction.
Collapse
Affiliation(s)
- Kelley Chuang
- and are Hospitalists at the West Los Angeles VA Medical Center and Assistant Clinical Professors at the University of California, Los Angeles David Geffen School of Medicine
| | - Satya Patel
- and are Hospitalists at the West Los Angeles VA Medical Center and Assistant Clinical Professors at the University of California, Los Angeles David Geffen School of Medicine
| |
Collapse
|
6
|
Finegan A, Mabrouk U, Nelson LA. Gabapentin-induced bilateral lower extremity edema in a patient with pervasive developmental disorder and schizoaffective disorder. Ment Health Clin 2020; 10:250-253. [PMID: 32685337 PMCID: PMC7338001 DOI: 10.9740/mhc.2020.07.250] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Gabapentin binds to the alpha-2-delta subunit of presynaptic voltage-gated calcium channels and is used for a wide variety of on- and off-label indications. Gabapentin is dosed at total daily doses ranging from 300 to 3600 mg/d, which is generally divided into 3 doses. Although gabapentin is generally well tolerated, 1 potential reported adverse effect is peripheral edema. However, due to the extensive number of etiologies of peripheral edema, medication causes may be overlooked on an inpatient psychiatric unit. This is a case of delayed identification of a probable adverse drug reaction to gabapentin (Naranjo score of 5) consisting of painful, 4+ pitting bilateral edema and a clear dose relationship in a patient with pervasive developmental disorder and schizoaffective disorder.
Collapse
Affiliation(s)
- Amber Finegan
- PGY2 Psychiatric Pharmacy Resident, Center for Behavioral Medicine, Kansas City, Missouri
| | - Usama Mabrouk
- Psychiatrist, Truman Medical Center, Kansas City, Missouri
| | - Leigh Anne Nelson
- PGY2 Psychiatric Pharmacy Resident, Center for Behavioral Medicine, Kansas City, Missouri.,Psychiatrist, Truman Medical Center, Kansas City, Missouri
| |
Collapse
|
7
|
Liu Y, Chen Q, Xu Y. Research progress in refractory sudden hearing loss: steroid therapy. J Int Med Res 2020; 48:300060519889426. [PMID: 31939327 PMCID: PMC7254608 DOI: 10.1177/0300060519889426] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 10/30/2019] [Indexed: 11/15/2022] Open
Abstract
Sudden sensorineural hearing loss (SSNHL) is a common condition with a rapid onset, and its worldwide frequency is increasing each year. Importantly, a significant number of patients with SSNHL do not respond to initial treatment, which is termed refractory sudden hearing loss (RSHL), and further treatment is not standardized in terms of type, duration, administration route, and concentration of topical steroid therapy. Dexamethasone and methylprednisolone are effective in treating RSHL, and salvage treatment typically consists of 2 weeks of steroid therapy followed by 3–6 months of follow-up. Near-continual steroid perfusion appears to be more effective than intermittent steroid injection. Furthermore, several novel therapeutic regimens have shown promising results in small-scale studies. However, the optimum treatment needs to be confirmed in larger randomized controlled trials.
Collapse
Affiliation(s)
- Ya Liu
- Department of Otolaryngology – Head and Neck Surgery, Zhejiang University School of Medicine First Affiliated Hospital, Hangzhou City, Zhejiang Province, China
| | - Qiongqiong Chen
- Department of Otolaryngology – Head and Neck Surgery, Zhejiang University School of Medicine First Affiliated Hospital, Hangzhou City, Zhejiang Province, China
| | - Yaping Xu
- Department of Otolaryngology – Head and Neck Surgery, Zhejiang University School of Medicine First Affiliated Hospital, Hangzhou City, Zhejiang Province, China
| |
Collapse
|
8
|
Lago MRR, Fernandes LDC, Lyra IM, Ramos RT, Teixeira R, Salles C, Ladeia AMT. Sensorineural hearing loss in children with sickle cell anemia and its association with endothelial dysfunction. Hematology 2018; 23:849-855. [DOI: 10.1080/10245332.2018.1478494] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
Affiliation(s)
- Mara Renata Rissatto Lago
- Bahiana School of Medicine and Public Health, Salvador, Brazil
- Department of Life Science, State University of Bahia, Salvador, Brazil
| | - Luciene da Cruz Fernandes
- Department of Speech Therapy, Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
| | - Isa Menezes Lyra
- University Hospital Professor Edgar Santos of Federal University of Bahia, Salvador, Brazil
| | - Regina Terse Ramos
- Department of Pediatrics, School of Medicine of Bahia, Federal University of Bahia, Salvador, Brazil
| | - Rozana Teixeira
- Bahiana School of Medicine and Public Health, Salvador, Brazil
| | - Cristina Salles
- Bahiana School of Medicine and Public Health, Salvador, Brazil
- University Hospital Professor Edgar Santos of Federal University of Bahia, Salvador, Brazil
| | | |
Collapse
|