1
|
Alkazmi L, Al-Kuraishy HM, Al-Gareeb AI, Alexiou A, Papadakis M, Saad HM, Batiha GES. The potential role of scavenger receptor B type I (SR-BI) in SARS-CoV-2 infection. Immun Inflamm Dis 2023; 11:e786. [PMID: 37102664 PMCID: PMC10103078 DOI: 10.1002/iid3.786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 01/26/2023] [Accepted: 02/01/2023] [Indexed: 04/28/2023] Open
Abstract
Scavenger receptor type B I (SR-BI), the major receptor for high-density lipoprotein (HDL) mediates the delivery of cholesterol ester and cholesterol from HDL to the cell membrane. SR-BI is implicated as a receptor for entry of severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2). SR-BI is colocalized with the angiotensin-converting enzyme 2 (ACE2) increasing the binding and affinity of SARS-CoV-2 to ACE2 with subsequent viral internalization. SR-BI regulates lymphocyte proliferation and the release of pro-inflammatory cytokines from activated macrophages and lymphocytes. SR-BI is reduced during COVID-19 due to consumption by SARS-CoV-2 infection. COVID-19-associated inflammatory changes and high angiotensin II (AngII) might be possible causes of repression of SR-BI in SARS-CoV-2 infection. In conclusion, the downregulation of SR-BI in COVID-19 could be due to direct invasion by SARS-CoV-2 or through upregulation of pro-inflammatory cytokines, inflammatory signaling pathways, and high circulating AngII. Reduction of SR-BI in COVID-19 look like ACE2 may provoke COVID-19 severity through exaggeration of the immune response. Further studies are invoked to clarify the potential role of SR-BI in the pathogenesis of COVID-19 that could be protective rather than detrimental.
Collapse
Affiliation(s)
- Luay Alkazmi
- Biology Department, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Hayder M Al-Kuraishy
- Department of Clinical Pharmacology and Medicine, College of Medicine, ALmustansiriyia University, Baghdad, Iraq
| | - Ali I Al-Gareeb
- Department of Clinical Pharmacology and Medicine, College of Medicine, ALmustansiriyia University, Baghdad, Iraq
| | - Athanasios Alexiou
- Department of Science and Engineering, Novel Global Community Educational Foundation, Hebersham, New South Wales, Australia
- AFNP Med, Wien, Austria
| | - Marios Papadakis
- Department of Surgery II, University Hospital Witten-Herdecke, University of Witten-Herdecke, Wuppertal, Germany
| | - Hebatallah M Saad
- Department of Pathology, Faculty of Veterinary Medicine, Matrouh University, Matrouh, Egypt
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| |
Collapse
|
2
|
Liu X, Finno CJ, Beck T, Dhana K, Tangney C, Desai P, Krueger K, Evans DA, Rajan KB. Association of Vitamin E and Cognitive Decline in Older Adults with and without the APOEɛ4 Allele: A Biracial Population-Based Community Study. J Alzheimers Dis 2023; 96:1129-1138. [PMID: 37955092 PMCID: PMC10947793 DOI: 10.3233/jad-230797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
BACKGROUND The association of different types of tocopherols (vitamin E) with cognition might vary by the APOEɛ4 allele status. OBJECTIVE We examined the association of dietary tocopherols with cognitive decline among participants with and without the APOEɛ4 allele over a median of 12 years. METHODS 2,193 participants from the Chicago Health and Aging Project were included in the analyses. Global cognition was assessed in three-year cycles. We used a 144-item FFQ to assess dietary intakes of tocopherols and hME Sequenom mass-array platform to assess APOE genotype. We used linear mixed effects models to examine the relationship between tocopherol from food sources and global cognitive decline. RESULTS The mean baseline age was 74.1 (SD = 5.9) years. Among APOEɛ4 carriers, participants in the highest quintile of intakes of dietary vitamin E had a slower cognitive decline of 0.022 SDU (95% CI: 0.000, 0.043) compared to those in the lowest quintile. A higher intake of dietary α-tocopherol from food sources only was associated with slower cognitive decline in APOEɛ4 carriers (p for trend 0.002) but not among the non-carriers (p for trend 0.937). Among APOEɛ4 carriers, those in the highest quintile of intake of α-tocopherol had a 16.4% slower rate of decline of global cognition compared to those in the lowest quintile (β= 0.034, 95% CI: 0.013, 0.054). CONCLUSIONS Individuals consuming high α-tocopherol from food sources had slower cognitive decline among APOEɛ4 carriers. In older adults, different forms of vitamin E might moderate the relationship of APOEɛ4 with global cognition.
Collapse
Affiliation(s)
- Xiaoran Liu
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL, 60612, USA
- Rush Institute for Healthy Aging, Chicago, IL, 60612, USA
| | - Carrie J. Finno
- Department of Population, Health & Reproduction, School of Veterinary Medicine, UC Davis, Davis, CA, 95616, USA
| | - Todd Beck
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL, 60612, USA
- Rush Institute for Healthy Aging, Chicago, IL, 60612, USA
| | - Klodian Dhana
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL, 60612, USA
- Rush Institute for Healthy Aging, Chicago, IL, 60612, USA
| | - Christy Tangney
- Department of Clinical Nutrition & Preventive Medicine, Rush University Medical Center, Chicago, IL, 60612, USA
| | - Pankaja Desai
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL, 60612, USA
- Rush Institute for Healthy Aging, Chicago, IL, 60612, USA
| | - Kristin Krueger
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL, 60612, USA
- Rush Institute for Healthy Aging, Chicago, IL, 60612, USA
| | - Denis A Evans
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL, 60612, USA
- Rush Institute for Healthy Aging, Chicago, IL, 60612, USA
| | - Kumar B Rajan
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL, 60612, USA
- Rush Institute for Healthy Aging, Chicago, IL, 60612, USA
| |
Collapse
|
3
|
Zhang Y, Ding J, Guo H, Liu Z, Liu Q, Li Y, Zhang D, Liang J. Associations of Dietary and Circulating Vitamin E Level With Metabolic Syndrome. A Meta-Analysis of Observational Studies. Front Nutr 2021; 8:783990. [PMID: 34957185 PMCID: PMC8692835 DOI: 10.3389/fnut.2021.783990] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 11/17/2021] [Indexed: 12/26/2022] Open
Abstract
Objective: The associations of dietary and circulating vitamin E level with metabolic syndrome (MetS) remains conflicting. This meta-analysis of observational study was therefore employed to investigate the issue above. Methods: The PubMed, Web of Science and Embase database were searched up to April 2021. The observational studies on the associations of dietary and circulating vitamin E level with MetS were specified. The pooled relative risk (RR) of MetS for the highest vs. lowest dietary and circulating vitamin E level, and the standard mean difference (SMD) of dietary and circulating vitamin E level for MetS vs. control subjects, were calculated. Results: A total of 25 observational studies with 51,276 participants, were included in this meta-analysis. The overall multi-variable adjusted RR demonstrated that the dietary vitamin E level was inversely associated with MetS (RR = 0.92, 95%CI: 0.85–1.00; P = 0.044). In addition, the dietary vitamin E level in MetS was also lower than that in control subjects according to the overall combined SMD (SMD = −0.08, 95%CI: −0.14 to −0.02; P = 0.024). On the other hand, the overall multi-variable adjusted RR showed no significant relationship between the circulating vitamin E level and MetS (RR = 1.46, 95%CI: 0.85–2.48; P = 0.17). However, the circulating vitamin E level in MetS was lower than that in control subjects according to the overall combined SMD (SMD = −0.58, 95%CI: −1.04 to −0.13; P = 0.013). Conclusions: The results of this meta-analysis suggest that the dietary vitamin E level is inversely associated with MetS. On the other hand, current evidence is still insufficient to conclude a relationship between the circulating vitamin E level and MetS. More well-designed prospective cohort studies are needed to address the issues further.
Collapse
Affiliation(s)
- Yi Zhang
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Jun Ding
- Changsha Social Work College, Changsha, China
| | - Hongbin Guo
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Ze Liu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
| | - Qi Liu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
| | - Yusheng Li
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Dianzhong Zhang
- Center for Teaching and Research of Advanced Mathematics, School of Mathematics and Statistics, Central South University, Changsha, China
| | - Jieyu Liang
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| |
Collapse
|
4
|
Traber MG, Head B. Vitamin E: How much is enough, too much and why! Free Radic Biol Med 2021; 177:212-225. [PMID: 34699937 DOI: 10.1016/j.freeradbiomed.2021.10.028] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 09/08/2021] [Accepted: 10/11/2021] [Indexed: 12/12/2022]
Abstract
α-Tocopherol (α-T) is a required dietary nutrient for humans and thus is a vitamin. This narrative review focuses on vitamin E structures, functions, biological determinants and its deficiency symptoms in humans. The mechanisms for the preferential α-T tissue enrichment in the human body include the α-T transfer protein (TTPA) and the preferential metabolism of non-α-T forms. Potential new α-T biomarkers, pharmacokinetic data, and whether there are better approaches to evaluate and set the α-T dietary requirement are discussed. Finally, the possible role of α-T supplements in delay of chronic diseases and the evaluation of vitamin E safety are considered.
Collapse
Affiliation(s)
- Maret G Traber
- Linus Pauling Institute, USA; School of Biological and Population Health Sciences, College of Public Health and Human Sciences, USA.
| | - Brian Head
- Linus Pauling Institute, USA; Molecular and Cell Biology Program, Oregon State University, Corvallis, OR, USA
| |
Collapse
|
5
|
Kluck GEG, Yoo JA, Sakarya EH, Trigatti BL. Good Cholesterol Gone Bad? HDL and COVID-19. Int J Mol Sci 2021; 22:10182. [PMID: 34638523 PMCID: PMC8507803 DOI: 10.3390/ijms221910182] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/15/2021] [Accepted: 09/17/2021] [Indexed: 02/06/2023] Open
Abstract
The transmissible respiratory disease COVID-19, caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has affected millions of people worldwide since its first reported outbreak in December of 2019 in Wuhan, China. Since then, multiple studies have shown an inverse correlation between the levels of high-density lipoprotein (HDL) particles and the severity of COVID-19, with low HDL levels being associated with an increased risk of severe outcomes. Some studies revealed that HDL binds to SARS-CoV-2 particles via the virus's spike protein and, under certain conditions, such as low HDL particle concentrations, it facilitates SARS-CoV-2 binding to angiotensin-converting enzyme 2 (ACE2) and infection of host cells. Other studies, however, reported that HDL suppressed SARS-CoV-2 infection. In both cases, the ability of HDL to enhance or suppress virus infection appears to be dependent on the expression of the HDL receptor, namely, the Scavenger Receptor Class B type 1 (SR-B1), in the target cells. SR-B1 and HDL represent crucial mediators of cholesterol metabolism. Herein, we review the complex role of HDL and SR-B1 in SARS-CoV-2-induced disease. We also review recent advances in our understanding of HDL structure, properties, and function during SARS-CoV-2 infection and the resulting COVID-19 disease.
Collapse
Affiliation(s)
| | | | | | - Bernardo L. Trigatti
- Thrombosis and Atherosclerosis Research Institute and Department of Biochemistry and Biomedical Sciences, McMaster University and Hamilton Health Sciences, Hamilton, ON L8L 2X2, Canada; (G.E.G.K.); (J.-A.Y.); (E.H.S.)
| |
Collapse
|
6
|
Umezawa A, Maruyama C, Endo Y, Suenaga Y, Shijo Y, Kameyama N, Sato A, Nishitani A, Ayaori M, Waki M, Teramoto T, Ikewaki K. Effects of Dietary Education Program for the Japan Diet on Cholesterol Efflux Capacity: A Randomized Controlled Trial. J Atheroscler Thromb 2021; 29:881-893. [PMID: 34024872 PMCID: PMC9174087 DOI: 10.5551/jat.62832] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Aim: Improving cholesterol efflux capacity (CEC) of high-density lipoprotein (HDL) has been regarded as a novel target for preventing cardiovascular disease. HDL reportedly has antioxidant properties which may contribute to its functions. We investigated changes in CEC with intake of the Japan Diet (JD) recommended by the Japan Atherosclerosis Society and the relationship of these changes to serum antioxidant concentrations.
Methods: A randomized parallel controlled clinical trial on JD intake was performed in Japanese patients with dyslipidemia. Ninety-eight participants were randomly divided into the JD (n=49) or the partial JD (PJD) (n=49) group. Nutrition education, based on each diet at baseline and at 3 months, was provided and the participants were followed up for 6 months.
Results: Mean CEC was 1.05 in total and correlated positively with HDL-cholesterol (p<0.001) at baseline. CEC did not change while oxygen radical absorbance capacity (ORAC) was decreased in both groups (p<0.001). Although serum total carotenoid increased in both groups, serum α-tocopherol decreased in the JD group as compared to the PJD group (p<0.05). CEC correlated positively with HDL ORAC at baseline (p=0.021) and with serum total carotenoid at 3 and 6 months (p=0.005, 0.035). Changes in CEC correlated positively with changes in HDL ORAC at 3 months and serum total tocopherol at 3 and 6 months (p<0.001).
Conclusion: CEC was not changed by JD education in Japanese patients with dyslipidemia who already had normal CEC at baseline. CEC was suggested to be positively associated with serum α- and γ-tocopherol and HDL ORAC.
Collapse
Affiliation(s)
- Ariko Umezawa
- Division of Food and Nutrition, Graduate School of Human Sciences and Design, Japan Women's University
| | - Chizuko Maruyama
- Division of Food and Nutrition, Graduate School of Human Sciences and Design, Japan Women's University.,Department of Food and Nutrition, Faculty of Human Sciences and Design, Japan Women's University
| | - Yasuhiro Endo
- Division of Anti-aging, Department of Internal Medicine, National Defense Medical College
| | - Yumiko Suenaga
- Division of Anti-aging, Department of Internal Medicine, National Defense Medical College
| | - Yuri Shijo
- Division of Food and Nutrition, Graduate School of Human Sciences and Design, Japan Women's University
| | - Noriko Kameyama
- Department of Food and Nutrition, Faculty of Human Sciences and Design, Japan Women's University
| | - Aisa Sato
- Division of Food and Nutrition, Graduate School of Human Sciences and Design, Japan Women's University
| | - Ai Nishitani
- Teikyo Academic Research Center, Teikyo University
| | | | | | - Tamio Teramoto
- Teikyo Academic Research Center, Teikyo University.,Teramoto Medical and Dental Clinic
| | - Katsunori Ikewaki
- Division of Anti-aging, Department of Internal Medicine, National Defense Medical College.,Tokorozawa Heart Center
| |
Collapse
|
7
|
The Physiological Roles of Vitamin E and Hypovitaminosis E in the Transition Period of High-Yielding Dairy Cows. Animals (Basel) 2021; 11:ani11041088. [PMID: 33920342 PMCID: PMC8070221 DOI: 10.3390/ani11041088] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 04/08/2021] [Accepted: 04/09/2021] [Indexed: 01/24/2023] Open
Abstract
Simple Summary In high-yield cows, most production diseases occur during transition periods. Alpha-tocopherol, the most biologically active form of vitamin E, declines in blood and reaches the lowest levels (hypovitaminosis E) around calving. Hypovitaminosis E is associated with the incidence of peripartum diseases. Therefore, many studies which have been published for more than 30 years have investigated the effects of α-tocopherol supplementation. This α-tocopherol deficiency was thought to be caused by complex factors. However, until recently, the physiological factors or pathways underlying hypovitaminosis E in the transition period have been poorly understood. In the last 10 years, the α-tocopherol-related genes expression, which regulate the metabolism, transportation, and tissue distribution of α-tocopherol in humans and rodents, has been reported in ruminant tissues. In this paper, we discuss at least six physiological phenomena that occur during the transition period and may be candidate factors predisposing to a decreased blood α-tocopherol level and hypovitaminosis E with changes in α-tocopherol-related genes expression. Abstract Levels of alpha-tocopherol (α-Toc) decline gradually in blood throughout prepartum, reaching lowest levels (hypovitaminosis E) around calving. Despite numerous reports about the disease risk in hypovitaminosis E and the effect of α-Toc supplementation on the health of transition dairy cows, its risk and supplemental effects are controversial. Here, we present some novel data about the disease risk of hypovitaminosis E and the effects of α-Toc supplementation in transition dairy cows. These data strongly demonstrate that hypovitaminosis E is a risk factor for the occurrence of peripartum disease. Furthermore, a study on the effectiveness of using serum vitamin levels as biomarkers to predict disease in dairy cows was reported, and a rapid field test for measuring vitamin levels was developed. By contrast, evidence for how hypovitaminosis E occurred during the transition period was scarce until the 2010s. Pioneering studies conducted with humans and rodents have identified and characterised some α-Toc-related proteins, molecular players involved in α-Toc regulation followed by a study in ruminants from the 2010s. Based on recent literature, the six physiological factors: (1) the decline in α-Toc intake from the close-up period; (2) changes in the digestive and absorptive functions of α-Toc; (3) the decline in plasma high-density lipoprotein as an α-Toc carrier; (4) increasing oxidative stress and consumption of α-Toc; (5) decreasing hepatic α-Toc transfer to circulation; and (6) increasing mammary α-Toc transfer from blood to colostrum, may be involved in α-Toc deficiency during the transition period. However, the mechanisms and pathways are poorly understood, and further studies are needed to understand the physiological role of α-Toc-related molecules in cattle. Understanding the molecular mechanisms underlying hypovitaminosis E will contribute to the prevention of peripartum disease and high performance in dairy cows.
Collapse
|
8
|
Lipoprotein receptor SR-B1 deficiency enhances adipose tissue inflammation and reduces susceptibility to hepatic steatosis during diet-induced obesity in mice. Biochim Biophys Acta Mol Cell Biol Lipids 2021; 1866:158909. [PMID: 33631309 DOI: 10.1016/j.bbalip.2021.158909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 02/05/2021] [Accepted: 02/17/2021] [Indexed: 12/31/2022]
Abstract
Scavenger receptor class B type 1 (SR-B1) is a membrane lipoprotein receptor/lipid transporter involved in the pathogenesis of atherosclerosis, but its role in obesity and fatty liver development is unclear. Here, we determined the effects of SR-B1 deficiency on plasma metabolic and inflammatory parameters as well as fat deposition in adipose tissue and liver during obesity. To induce obesity, we performed high-fat diet (HFD) exposure for 12 weeks in male SR-B1 knock-out (SR-B1-/-, n = 14) and wild-type (WT, n = 12) mice. Compared to HFD-fed WT mice, plasma from HFD-fed SR-B1-/- animals exhibited increased total cholesterol, triglycerides (TG) and tumor necrosis factor-α (TNF-α) levels. In addition, hypertrophied adipocytes and macrophage-containing crown-like structures (CLS) were observed in adipose tissue from HFD-fed SR-B1 deficient mice. Remarkably, liver from obese SR-B1-/- mice showed attenuated TG content, dysregulation in hepatic peroxisome proliferator-activated receptors (PPARs) expression, increased hepatic TG secretion, and altered hepatic fatty acid (FA) composition. In conclusion, we show that SR-B1 deficiency alters the metabolic environment of obese mice through modulation of liver and adipose tissue lipid accumulation. Our findings provide the basis for further elucidation of SR-B1's role in obesity and fatty liver, two major public health issues that increase the risk of advanced chronic diseases and overall mortality.
Collapse
|
9
|
Levy E, Beaulieu JF, Spahis S. From Congenital Disorders of Fat Malabsorption to Understanding Intra-Enterocyte Mechanisms Behind Chylomicron Assembly and Secretion. Front Physiol 2021; 12:629222. [PMID: 33584351 PMCID: PMC7873531 DOI: 10.3389/fphys.2021.629222] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 01/06/2021] [Indexed: 11/13/2022] Open
Abstract
During the last two decades, a large body of information on the events responsible for intestinal fat digestion and absorption has been accumulated. In particular, many groups have extensively focused on the absorptive phase in order to highlight the critical "players" and the main mechanisms orchestrating the assembly and secretion of chylomicrons (CM) as essential vehicles of alimentary lipids. The major aim of this article is to review understanding derived from basic science and clinical conditions associated with impaired packaging and export of CM. We have particularly insisted on inborn metabolic pathways in humans as well as on genetically modified animal models (recapitulating pathological features). The ultimate goal of this approach is that "experiments of nature" and in vivo model strategy collectively allow gaining novel mechanistic insight and filling the gap between the underlying genetic defect and the apparent clinical phenotype. Thus, uncovering the cause of disease contributes not only to understanding normal physiologic pathway, but also to capturing disorder onset, progression, treatment and prognosis.
Collapse
Affiliation(s)
- Emile Levy
- Research Centre, CHU Ste-Justine, Université de Montréal, Montreal, QC, Canada
- Department of Nutrition, Université de Montréal, Montreal, QC, Canada
- Department of Pediatrics, Université de Montréal, Montreal, QC, Canada
| | - Jean François Beaulieu
- Laboratory of Intestinal Physiopathology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Schohraya Spahis
- Research Centre, CHU Ste-Justine, Université de Montréal, Montreal, QC, Canada
- Department of Nutrition, Université de Montréal, Montreal, QC, Canada
| |
Collapse
|
10
|
Muresan XM, Narzt MS, Woodby B, Ferrara F, Gruber F, Valacchi G. Involvement of cutaneous SR-B1 in skin lipid homeostasis. Arch Biochem Biophys 2019; 666:1-7. [DOI: 10.1016/j.abb.2019.03.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 03/06/2019] [Accepted: 03/09/2019] [Indexed: 12/16/2022]
|
11
|
Reassembly of native components with donepezil to execute dual-missions in Alzheimer's disease therapy. J Control Release 2019; 296:14-28. [PMID: 30639387 DOI: 10.1016/j.jconrel.2019.01.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 12/20/2018] [Accepted: 01/08/2019] [Indexed: 02/07/2023]
Abstract
Alzheimer's disease (AD) is a multifaceted and progressive neurodegenerative disease characterized by accumulation of amyloid-beta (Aβ) and deficits of acetylcholine. Accordingly, the intra-/extra-cerebral level of high density lipoprotein (HDL) is crucial on the pathogenesis of AD; and most of all, various HDL-protein subtypes play a double-edged role in AD pathology, of which apolipoprotein A-I (apoA-I) gives protective outcomes. Inspired from "HDL bionics", we proposed biologically reassembled nanodrugs, donepezil-loaded apolipoprotein A-I-reconstituted HDL (rHDL/Do) that concurrently executed dual-missions of Aβ-targeting clearance and acetylcholinesterase (AChE) inhibition in AD therapy. Once prepared, rHDL/Do nanodrug achieved high drug encapsulation efficiency of 90.47%, and mimicked the configurations and properties of natural lipoproteins aiming to significantly enhance BBB penetration and modulate Aβ-induced neuronal damage both in vitro and in vivo. Surface plasmon resonance (SPR) analysis confirmed that rHDL/Do facilitated microglial-mediated Aβ intake and degradation, demonstrating low KD value with Aβ affinity (2.45 × 10-8 of Aβ monomer and 2.78 × 10-8 of Aβ oligomer). In AD animal models, daily treatment of rHDL/Do efficiently inhibited AChE activity, ameliorated neurologic variation, promoted Aβ clearance, and rescued memory loss at a safe level. The collective findings indicated that the biological nanodrug was provided with the capacities of BBB penetration, Aβ capture and degradation via microglial cells, and cholinergic dysfunction amelioration after controlled donepezil release. In summary, rHDL/Do nanodrugs could offer a promising strategy to synergize both symptom control and disease modification in AD therapy.
Collapse
|
12
|
Huang X, Zhen J, Dong S, Zhang H, Van Halm-Lutterodt N, Yuan L. DHA and vitamin E antagonized the Aβ25–35-mediated neuron oxidative damage through activation of Nrf2 signaling pathways and regulation of CD36, SRB1 and FABP5 expression in PC12 cells. Food Funct 2019; 10:1049-1061. [DOI: 10.1039/c8fo01713a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The present study was designed to explore the neuroprotective effects of docosahexaenoic acid (DHA) and/or vitamin E (VE) in vitro.
Collapse
Affiliation(s)
- Xiaochen Huang
- School of Public Health
- Capital Medical University
- Beijing 100069
- P.R. China
| | - Jie Zhen
- School of Public Health
- Capital Medical University
- Beijing 100069
- P.R. China
| | - Shengqi Dong
- School of Public Health
- Capital Medical University
- Beijing 100069
- P.R. China
| | - Huiqiang Zhang
- School of Public Health
- Capital Medical University
- Beijing 100069
- P.R. China
| | | | - Linhong Yuan
- School of Public Health
- Capital Medical University
- Beijing 100069
- P.R. China
| |
Collapse
|
13
|
Lee P, Ulatowski LM. Vitamin E: Mechanism of transport and regulation in the CNS. IUBMB Life 2018; 71:424-429. [PMID: 30556640 DOI: 10.1002/iub.1993] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 11/17/2018] [Accepted: 11/26/2018] [Indexed: 12/11/2022]
Abstract
Although vitamin E has been recognized as a critical micronutrient to neuronal health for more than half a century, vitamin E transport and regulation in the brain remain a mystery. Currently, the majority of what is known about vitamin E transport has been delineated in the liver. However, clues from the pathogenesis of neurological-related vitamin E deficient diseases point to compromised neuronal integrity and function, underlining the critical need to understand vitamin E regulation in the CNS. Additionally, most of the same molecular players involved in vitamin E transport in the liver are also found in CNS, including sterol SRB1, TTP, and ABCA/ABCG, suggesting similar intracellular pathways between these organ systems. Finally, based on chemical similarities, intracellular CNS shuttling of vitamin E likely resembles cholesterol's use of ApoE particles. Utilizing this information, this review will address what is currently known about trafficking vitamin E across the blood brain barrier in order to ensure an adequate supply of the essential nutrient to the brain. Although debatable, the health of the brain in relation to vitamin E levels has been demonstrated, most notably in oxidative stress-related conditions such as ataxias, Alzheimer's disease, and Parkinson's disease. Future vitamin E research is vital in understanding how the regulation of the vitamin can aid in the prevention, treatment, and curing of neurological diseases. © 2018 IUBMB Life, 71(4):424-429, 2019.
Collapse
Affiliation(s)
- Paris Lee
- Ursuline College, Department of Biology, 2550 Lander Rd Pepper Pike, Ohio 44124
| | - Lynn M Ulatowski
- Ursuline College, Department of Biology, 2550 Lander Rd Pepper Pike, Ohio 44124
| |
Collapse
|
14
|
Zingg JM. Vitamin E: Regulatory Role on Signal Transduction. IUBMB Life 2018; 71:456-478. [PMID: 30556637 DOI: 10.1002/iub.1986] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 11/20/2018] [Accepted: 11/21/2018] [Indexed: 01/02/2023]
Abstract
Vitamin E modulates signal transduction pathways by several molecular mechanisms. As a hydrophobic molecule located mainly in membranes it contributes together with other lipids to the physical and structural characteristics such as membrane stability, curvature, fluidity, and the organization into microdomains (lipid rafts). By acting as the main lipid-soluble antioxidant, it protects other lipids such as mono- and poly-unsaturated fatty acids (MUFA and PUFA, respectively) against chemical reactions with reactive oxygen and nitrogen species (ROS and RNS, respectively) and prevents membrane destabilization and cellular dysfunction. In cells, vitamin E affects signaling in redox-dependent and redox-independent molecular mechanisms by influencing the activity of enzymes and receptors involved in modulating specific signal transduction and gene expression pathways. By protecting and preventing depletion of MUFA and PUFA it indirectly enables regulatory effects that are mediated by the numerous lipid mediators derived from these lipids. In recent years, some vitamin E metabolites have been observed to affect signal transduction and gene expression and their relevance for the regulatory function of vitamin E is beginning to be elucidated. In particular, the modulation of the CD36/FAT scavenger receptor/fatty acids transporter by vitamin E may influence many cellular signaling pathways relevant for lipid homeostasis, inflammation, survival/apoptosis, angiogenesis, tumorigenesis, neurodegeneration, and senescence. Thus, vitamin E has an important role in modulating signal transduction and gene expression pathways relevant for its uptake, distribution, metabolism, and molecular action that when impaired affect physiological and patho-physiological cellular functions relevant for the prevention of a number of diseases. © 2018 IUBMB Life, 71(4):456-478, 2019.
Collapse
Affiliation(s)
- Jean-Marc Zingg
- Department of Biochemistry and Molecular Biology, Miller School of Medicine, University of Miami, Miami, Florida, USA
| |
Collapse
|
15
|
Reboul E. Vitamin E intestinal absorption: Regulation of membrane transport across the enterocyte. IUBMB Life 2018; 71:416-423. [PMID: 30308094 DOI: 10.1002/iub.1955] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 08/28/2018] [Accepted: 08/31/2018] [Indexed: 12/29/2022]
Abstract
Vitamin E is an essential molecule for our development and health. It has long been thought that it was absorbed and transported through cellular membranes by a passive diffusion process. However, data obtained during the past 15 years showed that its absorption is actually mediated, at least in part, by cholesterol membrane transporters including the scavenger receptor class B type I (SR-BI), CD36 molecule (CD36), NPC1-like transporter 1 (NPC1L1), and ATP-binding cassettes A1 and G1 (ABCA1 and ABCG1). This review focuses on the absorption process of vitamin E across the enterocyte. A special attention is given to the regulation of this process, including the possible competition with other fat-soluble micronutrients, and the modulation of transporter expressions. Overall, recent results noticeably increased the comprehension of vitamin E intestinal transport, but additional investigations are still required to fully appreciate the mechanisms governing vitamin E bioavailability. © 2018 IUBMB Life, 71(4):416-423, 2019.
Collapse
|
16
|
Santander N, Lizama C, Murgas L, Contreras S, Martin AJM, Molina P, Quiroz A, Rivera K, Salas-Pérez F, Godoy A, Rigotti A, Busso D. Transcriptional profiling of embryos lacking the lipoprotein receptor SR-B1 reveals a regulatory circuit governing a neurodevelopmental or metabolic decision during neural tube closure. BMC Genomics 2018; 19:731. [PMID: 30290792 PMCID: PMC6173885 DOI: 10.1186/s12864-018-5110-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 09/24/2018] [Indexed: 12/20/2022] Open
Abstract
Background The high-density lipoprotein receptor SR-B1 mediates cellular uptake of several lipid species, including cholesterol and vitamin E. During early mouse development, SR-B1 is located in the maternal-fetal interface, where it facilitates vitamin E transport towards the embryo. Consequently, mouse embryos lacking SR-B1 are vitamin E-deficient, and around half of them fail to close the neural tube and show cephalic neural tube defects (NTD). Here, we used transcriptomic profiling to identify the molecular determinants of this phenotypic difference between SR-B1 deficient embryos with normal morphology or with NTD. Results We used RNA-Seq to compare the transcriptomic profile of three groups of embryos retrieved from SR-B1 heterozygous intercrosses: wild-type E9.5 embryos (WT), embryos lacking SR-B1 that are morphologically normal, without NTD (KO-N) and SR-B1 deficient embryos with this defect (KO-NTD). We identified over 1000 differentially expressed genes: down-regulated genes in KO-NTD embryos were enriched for functions associated to neural development, while up-regulated genes in KO-NTD embryos were enriched for functions related to lipid metabolism. Feeding pregnant dams a vitamin E-enriched diet, which prevents NTD in SR-B1 KO embryos, resulted in mRNA levels for those differentially expressed genes that were more similar to KO-N than to KO-NTD embryos. We used gene regulatory network analysis to identify putative transcriptional regulators driving the different embryonic expression profiles, and identified a regulatory circuit controlled by the androgen receptor that may contribute to this dichotomous expression profile in SR-B1 embryos. Supporting this possibility, the expression level of the androgen receptor correlated strongly with the expression of several genes involved in neural development and lipid metabolism. Conclusions Our analysis shows that normal and defective embryos lacking SR-B1 have divergent expression profiles, explained by a defined set of transcription factors that may explain their divergent phenotype. We propose that distinct expression profiles may be relevant during early development to support embryonic nutrition and neural tube closure. Electronic supplementary material The online version of this article (10.1186/s12864-018-5110-2) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Nicolás Santander
- Department of Nutrition, Diabetes, and Metabolism, School of Medicine, Pontificia Universidad Católica de Chile, Marcoleta 367, 83300024, Santiago, CP, Chile
| | - Carlos Lizama
- Cardiovascular Research Institute, University of California, San Francisco, CA, USA
| | - Leandro Murgas
- Network Biology Laboratory, Center for Genomics and Bioinformatics, Faculty of Sciences, Universidad Mayor, Santiago, Chile
| | - Sebastián Contreras
- Network Biology Laboratory, Center for Genomics and Bioinformatics, Faculty of Sciences, Universidad Mayor, Santiago, Chile
| | - Alberto J M Martin
- Network Biology Laboratory, Center for Genomics and Bioinformatics, Faculty of Sciences, Universidad Mayor, Santiago, Chile
| | - Paz Molina
- Department of Nutrition, Diabetes, and Metabolism, School of Medicine, Pontificia Universidad Católica de Chile, Marcoleta 367, 83300024, Santiago, CP, Chile
| | - Alonso Quiroz
- Department of Nutrition, Diabetes, and Metabolism, School of Medicine, Pontificia Universidad Católica de Chile, Marcoleta 367, 83300024, Santiago, CP, Chile
| | - Katherine Rivera
- Department of Nutrition, Diabetes, and Metabolism, School of Medicine, Pontificia Universidad Católica de Chile, Marcoleta 367, 83300024, Santiago, CP, Chile
| | - Francisca Salas-Pérez
- Department of Nutrition, Diabetes, and Metabolism, School of Medicine, Pontificia Universidad Católica de Chile, Marcoleta 367, 83300024, Santiago, CP, Chile
| | - Alejandro Godoy
- Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile.,Department of Urology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA
| | - Attilio Rigotti
- Department of Nutrition, Diabetes, and Metabolism, School of Medicine, Pontificia Universidad Católica de Chile, Marcoleta 367, 83300024, Santiago, CP, Chile.,Center of Molecular Nutrition and Chronic Diseases, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Dolores Busso
- Department of Nutrition, Diabetes, and Metabolism, School of Medicine, Pontificia Universidad Católica de Chile, Marcoleta 367, 83300024, Santiago, CP, Chile.
| |
Collapse
|
17
|
Sticozzi C, Pecorelli A, Romani A, Belmonte G, Cervellati F, Maioli E, Lila MA, Cervellati C, Valacchi G. Tropospheric ozone affects SRB1 levels via oxidative post-translational modifications in lung cells. Free Radic Biol Med 2018; 126:287-295. [PMID: 30059777 DOI: 10.1016/j.freeradbiomed.2018.07.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 07/12/2018] [Accepted: 07/13/2018] [Indexed: 01/28/2023]
Abstract
Exposure to air pollution is associated with increased respiratory morbidities and susceptibility to lung dysfunction. Ozone (O3) is commonly recognized as one of the most noxious air pollutant and has been associated with several lung pathologies. It has been demonstrated that decreased lung disorder severity and incidence are connected with the consumption of a diet rich in fruits and vegetables, suggesting that higher intake of dietary micronutrients and phytoactive compounds can be beneficial. However, dietary supplementation - i.e. vitamin E (α-tocopherol) or vitamin A - has not always been effective in improving pulmonary function. Recently, research on the role of nutritional antioxidants on human health has focused more on studying their uptake at the cellular level rather than their effective ability to scavenge reactvive oxygen species (ROS). The Scavenger Receptor B1 (SRB1) has been shown to play a prominent role in the uptake, delivery and regulation of vitamin E in the lung. Given the importance of SRB1 in maintaining lung tissue in a healthy condition, we hypothesize that its expression could be modulated by pollution exposure, which thus could indirectly affect the uptake and/or delivery of lipophilic substances, such as vitamin E. To characterize the molecular mechanism involved in the redox modulation of SRB1, its cellular levels were assessed in human alveolar epithelial cells after O3 exposure. The results demonstrated that O3 induced the loss of SRB1 protein levels. This decline seems to be driven by hydrogen peroxide (H2O2) as a consequence of an increased activation of cellular NADPH oxidase (NOX), as demonstrated by the use of NOX inhibitors or catalase that reversed this effect. Furthermore, O3 caused the formation of SRB1-aldheyde adducts (4-hydroxy-2-nonenal) and the consequent increase of its ubiquitination, a mechanism that could account for SRB1 protein loss.
Collapse
Affiliation(s)
- Claudia Sticozzi
- Dept. Life Science and Biotechnologies, University of Ferrara, 4121 Ferrara, Italy
| | - Alessandra Pecorelli
- NC State University, Plants for Human Health Institute, NC Research Campus, 600 Laureate Way, Kannapolis, NC 28081, USA
| | - Arianna Romani
- Dept. Life Science and Biotechnologies, University of Ferrara, 4121 Ferrara, Italy
| | - Giuseppe Belmonte
- Dept. Life Science and Biotechnologies, University of Ferrara, 4121 Ferrara, Italy
| | - Franco Cervellati
- Dept. Life Science and Biotechnologies, University of Ferrara, 4121 Ferrara, Italy
| | - Emanuela Maioli
- Dept of Life Sciences, University of Siena, 53100 Siena, Italy
| | - Mary Ann Lila
- NC State University, Plants for Human Health Institute, NC Research Campus, 600 Laureate Way, Kannapolis, NC 28081, USA
| | - Carlo Cervellati
- Dept of Biomedical and Specialist Surgical Sciences, University of Ferrara, 44121 Ferrara, Italy
| | - Giuseppe Valacchi
- Dept. Life Science and Biotechnologies, University of Ferrara, 4121 Ferrara, Italy; NC State University, Plants for Human Health Institute, NC Research Campus, 600 Laureate Way, Kannapolis, NC 28081, USA.
| |
Collapse
|
18
|
The detection of age-, gender-, and region-specific changes in mouse brain tocopherol levels via the application of different validated HPLC methods. Neurochem Res 2018; 43:2081-2091. [DOI: 10.1007/s11064-018-2630-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 08/29/2018] [Accepted: 09/04/2018] [Indexed: 12/15/2022]
|
19
|
Dietary Vitamin E Status Dictates Oxidative Stress Outcomes by Modulating Effects of Fish Oil Supplementation in Alzheimer Disease Model APPswe/PS1dE9 Mice. Mol Neurobiol 2018; 55:9204-9219. [DOI: 10.1007/s12035-018-1060-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 04/03/2018] [Indexed: 02/02/2023]
|
20
|
Haga S, Miyaji M, Nakano M, Ishizaki H, Matsuyama H, Katoh K, Roh SG. Changes in the expression of α-tocopherol-related genes in liver and mammary gland biopsy specimens of peripartum dairy cows. J Dairy Sci 2018; 101:5277-5293. [PMID: 29605316 DOI: 10.3168/jds.2017-13630] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 02/17/2018] [Indexed: 11/19/2022]
Abstract
Blood α-tocopherol (α-Toc) concentrations decline gradually throughout the prepartum period, reaching the nadir after calving in dairy cows. The 6 α-Toc-related molecules [α-Toc transfer protein (TTPA); afamin; scavenger receptor class B, Type I; ATP-binding cassette transporter A1; tocopherol-associated protein (SEC14L2); and cytochrome P450 family 4, subfamily F, polypeptide 2 (CYP4F2)] are expressed in liver and other peripheral tissues. These molecules could regulate α-Toc transport, blood concentrations, and metabolism of α-Toc. Therefore, the aim of this study was to evaluate the changes in the expression of α-Toc-related genes in liver and mammary gland tissues of dairy cows around calving, which have remained elusive until now. In experiment (Exp.) 1, 28 multiparous Holstein cows were used (from -5 to 6 wk relative to parturition) to monitor the changes in dietary α-Toc intake, blood concentrations of α-Toc, and lipoproteins; in Exp. 2, 7 peripartum Holstein cows were used (from -4 to 4 wk relative to parturition) for liver tissue biopsy; and in Exp. 3, 10 peripartum Holstein cows were used (from -8 to 6 wk relative to parturition) to carry out the mammary gland tissue biopsy and milk sampling. In Exp. 1, the serum α-Toc concentrations declined gradually with decreasing amount of α-Toc intake and plasma high-density lipoprotein concentrations toward calving time. However, in the early lactation period after calving, serum α-Toc concentrations remained at a lower concentration despite the recovery of α-Toc intake and plasma high-density lipoprotein concentrations. In Exp. 2, just after calving, the TTPA, SEC14L2, afamin, and albumin mRNA expression levels in the liver were temporarily downregulated, and the hepatic mRNA levels of endoplasmic reticulum stress-induced unfolded protein response markers and acute-phase response marker increased at calving. In Exp. 3, the concentrations of α-Toc in colostrum were greater than those in precolostrum (samples were collected at wk -1 relative to parturition) and mature milk. The expression of TTPA, SEC14L2, and CYP4F2 mRNA in bovine mammary gland tissue was detected. However, TTPA and SEC14L2 mRNA expressions showed the opposite trends: the expression levels of TTPA mRNA peaked whereas SEC14L2 mRNA reached a nadir at calving. These results indicate that the expression of α-Toc-related genes involved in specific α-Toc transfer and metabolism in the liver and mammary gland are altered during calving. Moreover, these changes might be associated with the maintenance of lower serum α-Toc concentrations after calving.
Collapse
Affiliation(s)
- S Haga
- Grassland Management Research Division, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 768, Senbonmatsu, Nasushiobara, Tochigi, 329-2793, Japan.
| | - M Miyaji
- Animal Feeding and Management Research Division, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 768, Senbonmatsu, Nasushiobara, Tochigi, 329-2793, Japan
| | - M Nakano
- Grassland Management Research Division, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 768, Senbonmatsu, Nasushiobara, Tochigi, 329-2793, Japan
| | - H Ishizaki
- Grassland Management Research Division, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 768, Senbonmatsu, Nasushiobara, Tochigi, 329-2793, Japan
| | - H Matsuyama
- Animal Feeding and Management Research Division, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 768, Senbonmatsu, Nasushiobara, Tochigi, 329-2793, Japan
| | - K Katoh
- Lab of Animal Physiology, Graduate School of Agriculture Science, Tohoku University, 468-1, Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 980-0845, Japan
| | - S G Roh
- Lab of Animal Physiology, Graduate School of Agriculture Science, Tohoku University, 468-1, Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi, 980-0845, Japan
| |
Collapse
|
21
|
Effect of Intensive Exercise Training and Vitamin E Supplementation on the Content of Rat Brain-Drived Neurotrophic Factors. IRANIAN RED CRESCENT MEDICAL JOURNAL 2018. [DOI: 10.5812/ircmj.57298] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
22
|
Muresan XM, Sticozzi C, Belmonte G, Savelli V, Evelson P, Valacchi G. Modulation of cutaneous scavenger receptor B1 levels by exogenous stressors impairs "in vitro" wound closure. Mech Ageing Dev 2017; 172:78-85. [PMID: 29102450 DOI: 10.1016/j.mad.2017.11.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 08/30/2017] [Accepted: 11/01/2017] [Indexed: 01/01/2023]
Abstract
Scavenger receptor B1 (SR-B1) is a trans-membrane protein, involved in tissue reverse cholesterol transport. Several studies have demonstrated that SR-B1 is also implicated in other physiological processes, such as bacteria and apoptotic cells recognition and regulation of intracellular tocopherol and carotenoids levels. Among the tissues where it is localized, SR-B1 has been shown to be significantly expressed in human epidermis. Our group has demonstrated that SR-B1 levels are down-regulated in human cultured keratinocytes by environmental stressors, such as cigarette smoke, via cellular redox imbalance. Our present study aimed to investigate whether such down-regulation was confirmed in a 3D skin model and under other environmental challengers such as particulate matter and ozone. We also investigated the association between oxidation-induced SR-B1 modulation and impaired wound closure. The data obtained showed that not only cigarette, but also the other environmental stressors reduced SR-B1 expression in epidermal cutaneous tissues and that this effect might be involved in impaired wound healing.
Collapse
Affiliation(s)
| | - Claudia Sticozzi
- Dept. of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Giuseppe Belmonte
- Dept. of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Vinno Savelli
- Department of Medical, Surgery and Neurosciences, University of Siena, Siena, Italy
| | - Pablo Evelson
- Institute of Biochemistry and Molecular Medicine (IBIMOL-UBA-CONICET), Pharmacy and Biochemistry School, University of Buenos Aires, Buenos Aires, Argentina
| | - Giuseppe Valacchi
- Dept. of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy; Plants for Human Health Institute, Animal Sciences Dept., NC Research Campus, NC State University, NC, USA.
| |
Collapse
|
23
|
Deficient Vitamin E Uptake During Development Impairs Neural Tube Closure in Mice Lacking Lipoprotein Receptor SR-BI. Sci Rep 2017; 7:5182. [PMID: 28701710 PMCID: PMC5507922 DOI: 10.1038/s41598-017-05422-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 05/30/2017] [Indexed: 12/31/2022] Open
Abstract
SR-BI is the main receptor for high density lipoproteins (HDL) and mediates the bidirectional transport of lipids, such as cholesterol and vitamin E, between these particles and cells. During early development, SR-BI is expressed in extraembryonic tissue, specifically in trophoblast giant cells in the parietal yolk sac. We previously showed that approximately 50% of SR-BI-/- embryos fail to close the anterior neural tube and develop exencephaly, a perinatal lethal condition. Here, we evaluated the role of SR-BI in embryonic vitamin E uptake during murine neural tube closure. Our results showed that SR-BI-/- embryos had a very low vitamin E content in comparison to SR-BI+/+ embryos. Whereas SR-BI-/- embryos with closed neural tubes (nSR-BI-/-) had high levels of reactive oxygen species (ROS), intermediate ROS levels between SR-BI+/+ and nSR-BI-/- embryos were detected in SR-BI-/- with NTD (NTD SR-BI-/-). Reduced expression of Pax3, Alx1 and Alx3 genes was found in NTD SR-BI-/- embryos. Maternal α-tocopherol dietary supplementation prevented NTD almost completely (from 54% to 2%, p < 0.001) in SR-BI-/- embryos and normalized ROS and gene expression levels. In sum, our results suggest the involvement of SR-BI in the maternal provision of embryonic vitamin E to the mouse embryo during neural tube closure.
Collapse
|
24
|
Mohammadi A, Sadeghnia HR, Saberi-Karimian M, Safarian H, Ferns GA, Ghayour-Mobarhan M, Sahebkar A. Effects of Curcumin on Serum Vitamin E Concentrations in Individuals with Metabolic Syndrome. Phytother Res 2017; 31:657-662. [DOI: 10.1002/ptr.5779] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 12/09/2016] [Accepted: 01/09/2017] [Indexed: 12/13/2022]
Affiliation(s)
- Akram Mohammadi
- Department of Modern Sciences and Technologies, School of Medicine; Mashhad University of Medical Sciences; Mashhad Iran
| | - Hamid Reza Sadeghnia
- Department of Pharmacology, School of Medicine; Mashhad University of Medical Sciences; Mashhad Iran
| | - Maryam Saberi-Karimian
- Student Research Committee, Department of Modern Sciences and Technologies, School of Medicine; Mashhad University of Medical Sciences; Mashhad Iran
| | - Hamideh Safarian
- Department of Biochemistry, School of Medicine; Mashhad University of Medical Sciences; Mashhad Iran
| | - Gordon A. Ferns
- Division of Medical Education; Brighton and Sussex Medical School; Falmer Brighton Sussex BN1 9PH UK
| | - Majid Ghayour-Mobarhan
- Biochemistry and Nutrition Research Center, School of Medicine; Mashhad University of Medical Sciences; Mashhad Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center; Mashhad University of Medical Sciences; Mashhad Iran
| |
Collapse
|
25
|
Yamanashi Y, Takada T, Kurauchi R, Tanaka Y, Komine T, Suzuki H. Transporters for the Intestinal Absorption of Cholesterol, Vitamin E, and Vitamin K. J Atheroscler Thromb 2017; 24:347-359. [PMID: 28100881 PMCID: PMC5392472 DOI: 10.5551/jat.rv16007] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Humans cannot synthesize fat-soluble vitamins such as vitamin E and vitamin K. For this reason, they must be obtained from the diet via intestinal absorption. As the deficiency or excess of these vitamins has been reported to cause several types of diseases and disorders in humans, the intestinal absorption of these nutrients must be properly regulated to ensure good health. However, the mechanism of their intestinal absorption remains poorly understood. Recent studies on cholesterol using genome-edited mice, genome-wide association approaches, gene mutation analyses, and the development of cholesterol absorption inhibitors have revealed that several membrane proteins play crucial roles in the intestinal absorption of cholesterol. Surprisingly, detailed analyses of these cholesterol transporters have revealed that they can also transport vitamin E and vitamin K, providing clues to uncover the molecular mechanisms underlying the intestinal absorption of these fat-soluble vitamins. In this review, we focus on the membrane proteins (Niemann-Pick C1 like 1, scavenger receptor class B type I, cluster of differentiation 36, and ATP-binding cassette transporter A1) that are (potentially) involved in the intestinal absorption of cholesterol, vitamin E, and vitamin K and discuss their physiological and pharmacological importance. We also discuss the related uncertainties that need to be explored in future studies.
Collapse
Affiliation(s)
- Yoshihide Yamanashi
- Department of Pharmacy, the University of Tokyo Hospital, Faculty of Medicine, the University of Tokyo
| | | | | | | | | | | |
Collapse
|
26
|
Genetic Variations Involved in Vitamin E Status. Int J Mol Sci 2016; 17:ijms17122094. [PMID: 27983595 PMCID: PMC5187894 DOI: 10.3390/ijms17122094] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 11/30/2016] [Accepted: 12/09/2016] [Indexed: 02/07/2023] Open
Abstract
Vitamin E (VE) is the generic term for four tocopherols and four tocotrienols that exhibit the biological activity of α-tocopherol. VE status, which is usually estimated by measuring fasting blood VE concentration, is affected by numerous factors, such as dietary VE intake, VE absorption efficiency, and VE catabolism. Several of these factors are in turn modulated by genetic variations in genes encoding proteins involved in these factors. To identify these genetic variations, two strategies have been used: genome-wide association studies and candidate gene association studies. Each of these strategies has its advantages and its drawbacks, nevertheless they have allowed us to identify a list of single nucleotide polymorphisms associated with fasting blood VE concentration and α-tocopherol bioavailability. However, much work remains to be done to identify, and to replicate in different populations, all the single nucleotide polymorphisms involved, to assess the possible involvement of other kind of genetic variations, e.g., copy number variants and epigenetic modifications, in order to establish a reliable list of genetic variations that will allow us to predict the VE status of an individual by knowing their genotype in these genetic variations. Yet, the potential usefulness of this area of research is exciting with regard to personalized nutrition and for future clinical trials dedicated to assessing the biological effects of the various isoforms of VE.
Collapse
|
27
|
Naberhuis JK, Lai CS. Enhanced delivery of lipophilic nutrients to the infant brain via high density lipoprotein. Med Hypotheses 2015; 85:680-5. [PMID: 26323246 DOI: 10.1016/j.mehy.2015.08.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 08/13/2015] [Indexed: 12/14/2022]
Abstract
Lipoproteins are the primary carriers of lipophilic cognitive nutrients such as docosahexaenoic acid, lutein, and α-tocopherol within circulation. The critical roles these nutrients play in growth and development are well established, and as such, their efficient delivery to the infant brain is crucial. Given the selectivity of the blood brain barrier, the lipoprotein fraction primarily responsible for brain delivery of these nutrients must be determined so that efforts aimed at increasing brain nutrient uptake, via lipoprotein profile manipulation, can be appropriately focused. Based on the preclinical and clinical data reviewed here, we hypothesize that high density lipoprotein is the fraction chiefly responsible for delivery of docosahexaenoic acid, lutein, and α-tocopherol to the infant brain. As high density lipoprotein levels tend to be lower in preterm, formula-fed infants as compared to their full-term, breast-fed counterparts, efforts aimed at increasing circulating high density lipoprotein levels, and subsequent delivery of cognitive lipophilic nutrients to the brain via manipulation of formula composition, may be most effective if targeted to this group. These efforts include (1) limiting the polyunsaturated: saturated fatty acid ratio; (2) increasing the casein: whey ratio; (3) altering the proportion of saturated fatty acids found in the sn-2 position of the parent triglyceride; (4) cholesterol supplementation; and (5) nucleotide supplementation.
Collapse
Affiliation(s)
- J K Naberhuis
- Abbott Nutrition, Abbott Laboratories, Research Park at the University of Illinois at Urbana-Champaign, Champaign, IL, United States; Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - C-S Lai
- Abbott Nutrition, Abbott Laboratories, Columbus, OH, United States.
| |
Collapse
|
28
|
Haga S, Nakano M, Ishizaki H, Roh SG, Katoh K. Expression of α-tocopherol–associated genes and α-tocopherol accumulation in Japanese Black (Wagyu) calves with and without α-tocopherol supplementation1. J Anim Sci 2015; 93:4048-57. [DOI: 10.2527/jas.2015-9106] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
29
|
Affiliation(s)
- Jean-Marc Zingg
- Department of Biochemistry and Molecular Biology, University of Miami, Miami, Florida 33136-6129;
| |
Collapse
|
30
|
Drug Delivery Innovations for Enhancing the Anticancer Potential of Vitamin E Isoforms and Their Derivatives. BIOMED RESEARCH INTERNATIONAL 2015; 2015:584862. [PMID: 26137487 PMCID: PMC4475563 DOI: 10.1155/2015/584862] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 04/12/2015] [Accepted: 04/15/2015] [Indexed: 12/13/2022]
Abstract
Vitamin E isoforms have been extensively studied for their anticancer properties. Novel drug delivery systems (DDS) that include liposomes, nanoparticles, and micelles are actively being developed to improve Vitamin E delivery. Furthermore, several drug delivery systems that incorporate Vitamin E isoforms have been synthesized in order to increase the bioavailability of chemotherapeutic agents or to provide a synergistic effect. D-alpha-tocopheryl polyethylene glycol succinate (Vitamin E TPGS or TPGS) is a synthetic derivative of natural alpha-tocopherol which is gaining increasing interest in the development of drug delivery systems and has also shown promising anticancer effect as a single agent. This review provides a summary of the properties and anticancer effects of the most potent Vitamin E isoforms and an overview of the various formulations developed to improve their efficacy, with an emphasis on the use of TPGS in drug delivery approaches.
Collapse
|
31
|
Niesor EJ. Will Lipidation of ApoA1 through Interaction with ABCA1 at the Intestinal Level Affect the Protective Functions of HDL? BIOLOGY 2015; 4:17-38. [PMID: 25569858 PMCID: PMC4381214 DOI: 10.3390/biology4010017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 12/18/2014] [Indexed: 11/16/2022]
Abstract
The relationship between levels of high-density lipoprotein cholesterol (HDL-C) and cardiovascular (CV) risk is well recognized; however, in recent years, large-scale phase III studies with HDL-C-raising or -mimicking agents have failed to demonstrate a clinical benefit on CV outcomes associated with raising HDL-C, casting doubt on the "HDL hypothesis." This article reviews potential reasons for the observed negative findings with these pharmaceutical compounds, focusing on the paucity of translational models and relevant biomarkers related to HDL metabolism that may have confounded understanding of in vivo mechanisms. A unique function of HDL is its ability to interact with the ATP-binding cassette transporter (ABC) A1 via apolipoprotein (Apo) A1. Only recently, studies have shown that this process may be involved in the intestinal uptake of dietary sterols and antioxidants (vitamin E, lutein and zeaxanthin) at the basolateral surface of enterocytes. This parameter should be assessed for HDL-raising drugs in addition to the more documented reverse cholesterol transport (RCT) from peripheral tissues to the liver. Indeed, a single mechanism involving the same interaction between ApoA1 and ABCA1 may encompass two HDL functions previously considered as separate: antioxidant through the intestinal uptake of antioxidants and RCT through cholesterol efflux from loaded cells such as macrophages.
Collapse
Affiliation(s)
- Eric J Niesor
- F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, CH-4070 Basel, Switzerland.
| |
Collapse
|
32
|
Excess cholesterol induces mouse egg activation and may cause female infertility. Proc Natl Acad Sci U S A 2014; 111:E4972-80. [PMID: 25368174 DOI: 10.1073/pnas.1418954111] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The HDL receptor scavenger receptor, class B type I (SR-BI) controls the structure and fate of plasma HDL. Female SR-BI KO mice are infertile, apparently because of their abnormal cholesterol-enriched HDL particles. We examined the growth and meiotic progression of SR-BI KO oocytes and found that they underwent normal germinal vesicle breakdown; however, SR-BI KO eggs, which had accumulated excess cholesterol in vivo, spontaneously activated, and they escaped metaphase II (MII) arrest and progressed to pronuclear, MIII, and anaphase/telophase III stages. Eggs from fertile WT mice were activated when loaded in vitro with excess cholesterol by a cholesterol/methyl-β-cyclodextrin complex, phenocopying SR-BI KO oocytes. In vitro cholesterol loading of eggs induced reduction in maturation promoting factor and MAPK activities, elevation of intracellular calcium, extrusion of a second polar body, and progression to meiotic stages beyond MII. These results suggest that the infertility of SR-BI KO females is caused, at least in part, by excess cholesterol in eggs inducing premature activation and that cholesterol can activate WT mouse eggs to escape from MII arrest. Analysis of SR-BI KO female infertility raises the possibility that abnormalities in cholesterol metabolism might underlie some cases of human female infertility of unknown etiology.
Collapse
|
33
|
Martineau C, Kevorkova O, Brissette L, Moreau R. Scavenger receptor class B, type I (Scarb1) deficiency promotes osteoblastogenesis but stunts terminal osteocyte differentiation. Physiol Rep 2014; 2:2/10/e12117. [PMID: 25281615 PMCID: PMC4254088 DOI: 10.14814/phy2.12117] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Scavenger receptor class B type I (SR-BI), the Scarb1 gene product, is a high-density lipoprotein (HDL) receptor which was shown to influence bone metabolism. Its absence in mice is associated with alterations of the glucocorticoid/adrenocorticotropic hormone axis, and translated in high bone mass and enhanced bone formation. Since the cellular alterations underlying the enhanced bone formation remain unknown, we investigated Scarb1-deficient marrow stromal cells (MSC) behavior in vitro. No difference in HDL3, cholesteryl ester (CE) or estradiol (E) association/binding was measured between Scarb1-null and wild-type (WT) cells. Scarb1 genic expression was down-regulated twofold following osteogenic treatment. Neither WT nor null cell proliferation was influenced by HDL3 exposure whereas this condition decreased genic expression of osteoblastic marker osterix (Sp7), and osteocyte markers sclerostin (Sost) and dentin matrix protein 1 (Dmp1) independently of genotype. Sost and Dmp1 basal expression in null cells was 40% and 50% that of WT cells; accordingly, osteocyte density was 20% lower in vertebrae from Scarb1-null mice. Genic expression of co-receptors for Wnt signaling, namely LDL-related protein (Lrp) 5 and Lrp8, was increased, respectively, by two- and threefold, and of transcription target-genes axis inhibition protein 2 (Axin2) and lymphoid enhancer-binding factor 1 (Lef1) over threefold. Gene expression of Wnt signaling agonist Wnt5a and of the antagonist dickkopfs-related protein 1 (Dkk1) were found to be increased 10- to 20-fold in null MSC. These data suggest alterations of Wnt pathways in Scarb1-deficient MSC potentially explaining their enhanced function, hence contributing to the high bone mass observed in these mice.
Collapse
Affiliation(s)
- Corine Martineau
- Laboratoire du Métabolisme Osseux, BioMed, Département des Sciences Biologiques, Université du Québec à Montréal, Montréal, H3C 3P8, Quebec, Canada
| | - Olha Kevorkova
- Laboratoire du Métabolisme Osseux, BioMed, Département des Sciences Biologiques, Université du Québec à Montréal, Montréal, H3C 3P8, Quebec, Canada
| | - Louise Brissette
- Laboratoire du Métabolisme des Lipoprotéines, Département des Sciences Biologiques, BioMed, Université du Québec à Montréal, Montréal, H3C 3P8, Quebec, Canada
| | - Robert Moreau
- Laboratoire du Métabolisme Osseux, BioMed, Département des Sciences Biologiques, Université du Québec à Montréal, Montréal, H3C 3P8, Quebec, Canada
| |
Collapse
|
34
|
Hassani S, Sepand MR, Jafari A, Jaafari J, Rezaee R, Zeinali M, Tavakoli F, Razavi-Azarkhiavi K. Protective effects of curcumin and vitamin E against chlorpyrifos-induced lung oxidative damage. Hum Exp Toxicol 2014; 34:668-76. [DOI: 10.1177/0960327114550888] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
There are increasing concerns regarding the toxic effects of chlorpyrifos (CPF) on human health. Curcumin (CUR) is a yellow pigment isolated from turmeric ground rhizome of Curcuma longa Linn., which has been identified as an antioxidant agent. This study was designed to examine the protective effect of CUR and vitamin E (Vit E) on CPF-induced lung toxicity. Rats were divided into seven groups: control, CPF (13.5 mg/kg, orally), CPF + CUR (100 and 300 mg/kg, respectively, orally), CPF + α-tocopherol (Vit E, 150 mg/kg, intraperitoneally), CPF and CUR (100 and 300 mg/kg, respectively) in combination with α-tocopherol. The regimens were administered once daily for 28 days. At the end of the treatment period, lungs were collected for evaluation of oxidative factors and histopathological parameters. CUR and Vit E led to a decrease in lipid peroxidation in the lungs of the CPF-injected animals (48% and 51%, respectively). Glutathione peroxidase inhibited by CPF (91.9 nmol/min/mg protein) was induced again by CUR and Vit E (167.1 and 171.8 nmol/min/mg protein). CUR and Vit E caused a significant induction of superoxide dismutase (103.4 U/mg protein). Catalase activity almost returned to normalcy in CPF-intoxicated rats subjected to CUR + Vit E treatment ( p < 0.001). Lung sections from CPF-treated rats displayed histopathological damages, while coadministration of CUR and Vit E resulted in apparently normal morphology with a significant decrease in injuries ( p < 0.05). Our findings revealed that coadministration of Vit E and CUR to CPF-treated animals prevents the oxidative damages in the lung tissues.
Collapse
Affiliation(s)
- S Hassani
- Faculty of Pharmacy and Pharmaceutical Sciences Research Centre, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - MR Sepand
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - A Jafari
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - J Jaafari
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - R Rezaee
- Student Research Committee, School of Pharmacy, Mashhad University of Medical Sciences (MUMS), Mashhad, Islamic Republic of Iran
| | - M Zeinali
- Social Security Organization, Mashhad, Islamic Republic of Iran
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences (MUMS), Mashhad, Islamic Republic of Iran
| | - F Tavakoli
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran
| | - K Razavi-Azarkhiavi
- Student Research Committee, School of Pharmacy, Mashhad University of Medical Sciences (MUMS), Mashhad, Islamic Republic of Iran
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences (MUMS), Mashhad, Islamic Republic of Iran
| |
Collapse
|
35
|
Mo D, Xu H, Zhou W, Yang Q, Yang J, Xiao B, Yang Q. Susceptibility gene for stroke or cerebral infarction in the Han population in Hunan Province of China. Neural Regen Res 2014; 8:1519-27. [PMID: 25206448 PMCID: PMC4107805 DOI: 10.3969/j.issn.1673-5374.2013.16.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Accepted: 05/20/2013] [Indexed: 12/16/2022] Open
Abstract
The scavenger receptor class B type I gene can protect against atherosclerosis; a mononucleotide polymorphism is associated with differences in blood lipid metabolism, postprandial serum lipid levels, insulin resistance, coronary artery disease and familial hyperlipidemia. In this study, the scavenger receptor class B type I gene exon 1 G4A gene polymorphism in atherosclerotic cerebral infarction patients, cerebral hemorrhage patients and normal controls was detected using the polymerase chain reaction-restriction fragment length polymorphism method. The results showed that the GA + AA genotype frequency of scavenger receptor class B type I gene G4A in atherosclerotic cerebral infarction patients was similar to that in cerebral hemorrhage patients and normal controls; however, the A allele frequency was significantly lower than that in normal controls. The serum level of high-density lipoprotein cholesterol in patients with the scavenger receptor class B type I gene G4A GA + AA genotype was significantly higher, while the serum level of low-density lipoprotein cholesterol was significantly lower than that in patients with the GG genotype, in both the atherosclerotic cerebral infarction and cerebral hemorrhage groups. The serum level of high-density lipoprotein cholesterol in patients with the scavenger receptor class B type I gene G4A GA + AA genotype was significantly higher, while the serum levels of low-density lipoprotein cholesterol and total cholesterol were significantly lower than those in normal controls with the GG genotype. Our experimental results suggest that the G4A polymorphism of the scavenger receptor class B type I gene is a possible predisposing risk factor for atherosclerotic cerebral infarction, and that it has no association with cerebral hemorrhage in the Han population in Hunan province of China. The A allele is possibly associated with the metabolism of high-density and low-density lipoprotein cholesterol.
Collapse
Affiliation(s)
- Danheng Mo
- Department of Neurology, Hunan Provincial Mawangdui Hospital, Changsha 410016, Hunan Province, China
| | - Hongwei Xu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
| | - Wensheng Zhou
- Department of Neurology, Hunan Provincial Mawangdui Hospital, Changsha 410016, Hunan Province, China
| | - Qiming Yang
- Department of Neurology, Hunan Provincial Mawangdui Hospital, Changsha 410016, Hunan Province, China
| | - Jianwen Yang
- Department of Neurology, Hunan Provincial Mawangdui Hospital, Changsha 410016, Hunan Province, China
| | - Bo Xiao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
| | - Qidong Yang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, China
| |
Collapse
|
36
|
Ghlissi Z, Hakim A, Sila A, Mnif H, Zeghal K, Rebai T, Bougatef A, Sahnoun Z. Evaluation of efficacy of natural astaxanthin and vitamin E in prevention of colistin-induced nephrotoxicity in the rat model. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2014; 37:960-966. [PMID: 24709323 DOI: 10.1016/j.etap.2014.03.004] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 02/28/2014] [Accepted: 03/06/2014] [Indexed: 06/03/2023]
Abstract
OBJECTIVE We evaluated the effect of astaxanthin (ASX) and vitamin E (vit E) on colistin methanesulfonate (CMS) induced-nephrotoxicity in rats. METHODS Animals were treated with sterile saline, 300000 or 450 000 IU/kg/day of CMS, CMS + ASX (20 mg/kg), CMS + vit E (100 mg/kg), or CMS + 1 ml/kg olive oil (OO) for 7 days. The plasma/urine creatinine (Cr) level, urine γ-glutamyl-transferase (GGT) level, and renal tissue activities in malondialdehyde (MDA), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) and reductase (GSH), as well as renal histology were performed. RESULTS CMS induced a tubular damage, increased the GGT and MDA levels, and decreased the activities of SOD, CAT, GPx and GSH. Co-treatment with ASX or vit E restored all biochemical parameters cited above and improved the histopathological damage. CONCLUSION Nephrotoxicity induced by CMS might be due to oxidative damage. The improvement by ASX or vit E seems to be related to their antioxidant properties.
Collapse
Affiliation(s)
- Zohra Ghlissi
- Research unit of pharmacology and toxicology of xenobiotics (UR12 ES13), Faculty of Medicine, University of Sfax, 3029, Tunisia.
| | - Ahmed Hakim
- Research unit of pharmacology and toxicology of xenobiotics (UR12 ES13), Faculty of Medicine, University of Sfax, 3029, Tunisia
| | - Assaad Sila
- Unit of enzyme and Bioconversion, National School of Engineering, University of Sfax, Tunisia
| | - Hela Mnif
- Anatomopathology Laboratory, CHU Habib Bourguiba, 3029 Sfax, Tunisia
| | - Khaled Zeghal
- Research unit of pharmacology and toxicology of xenobiotics (UR12 ES13), Faculty of Medicine, University of Sfax, 3029, Tunisia
| | - Tarek Rebai
- Laboratory of Histology and Embryology, Faculty of Medicine, University of Sfax, Tunisia
| | - Ali Bougatef
- Unit of enzyme and Bioconversion, National School of Engineering, University of Sfax, Tunisia
| | - Zouheir Sahnoun
- Research unit of pharmacology and toxicology of xenobiotics (UR12 ES13), Faculty of Medicine, University of Sfax, 3029, Tunisia
| |
Collapse
|
37
|
Sticozzi C, Belmonte G, Cervellati F, Muresan XM, Pessina F, Lim Y, Forman HJ, Valacchi G. Resveratrol protects SR-B1 levels in keratinocytes exposed to cigarette smoke. Free Radic Biol Med 2014; 69:50-7. [PMID: 24423486 PMCID: PMC3967961 DOI: 10.1016/j.freeradbiomed.2014.01.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 01/03/2014] [Accepted: 01/04/2014] [Indexed: 12/26/2022]
Abstract
Cigarette smoking (CS) has been strongly linked to several health conditions including heart disease, lung cancer, and other respiratory and circulatory ailments. Deleterious effects of cigarette smoking on skin have also been well documented, but unlike effects on other organs, damage does not depend upon inhalation. The upper layer of the skin, the stratum corneum (rich in cholesterol fatty acids and ceramide), is very susceptible to damage induced by exposure to environmental stressors that can modify its lipid composition and thereby affect its function of protecting skin from dehydration. Scavenger receptor B1 (SR-B1) is involved in the uptake of cholesterol in several tissues including skin. We previously demonstrated that CS exposure induces formation of aldehyde (HNE) adducts that decrease SR-B1 expression. As topical resveratrol, a well-known polyphenolic stilbene, has been demonstrated to show benefits against skin disorders, we investigated its possible role as a protective agent against CS-induced reduction of SR-B1 expression in cutaneous tissue. In this study, we demonstrate that resveratrol at doses ranging from 0.5 to 10 μM is not toxic and is able to increase SR-B1 protein levels in a dose-dependent manner in human keratinocytes. Moreover, when the cells that were pretreated with various doses of resveratrol were exposed to CS, the loss of SR-B1 was prevented in a dose-dependent manner. In addition, in keratinocytes, resveratrol was also able to prevent an increase in HNE-protein adducts induced by CS. In particular resveratrol was able to prevent HNE-SR-B1 adduct formation. Thus, resveratrol seems to be a natural compound that could provide skin with a defense against exogenous stressors by protecting the essential cholesterol receptor, SR-B1.
Collapse
Affiliation(s)
- C Sticozzi
- Department of Life Sciences and Biotechnology, University of Ferrara, 44100 Ferrara, Italy
| | - G Belmonte
- Department of Surgical and Medical Sciences and Neuroscience, University of Siena, Siena, Italy
| | - F Cervellati
- Department of Life Sciences and Biotechnology, University of Ferrara, 44100 Ferrara, Italy
| | - X M Muresan
- Department of Life Sciences and Biotechnology, University of Ferrara, 44100 Ferrara, Italy
| | - F Pessina
- Department of Molecular Medicine and Development, University of Siena, Siena, Italy
| | - Y Lim
- Department of Food and Nutrition, Kyung Hee University, Seoul, Korea
| | - H J Forman
- Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA; Life and Environmental Sciences Unit, University of California at Merced, Merced, CA 95344, USA
| | - G Valacchi
- Department of Life Sciences and Biotechnology, University of Ferrara, 44100 Ferrara, Italy; Department of Food and Nutrition, Kyung Hee University, Seoul, Korea.
| |
Collapse
|
38
|
Valacchi G, Belmonte G, Miracco C, Eo H, Lim Y. Effect of combined mulberry leaf and fruit extract on liver and skin cholesterol transporters in high fat diet-induced obese mice. Nutr Res Pract 2014; 8:20-6. [PMID: 24611101 PMCID: PMC3944151 DOI: 10.4162/nrp.2014.8.1.20] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 11/12/2013] [Accepted: 11/14/2013] [Indexed: 12/25/2022] Open
Abstract
Obesity is an epidemic disease characterized by an increased inflammatory state and chronic oxidative stress with high levels of pro-inflammatory cytokines and lipid peroxidation. Moreover, obesity alters cholesterol metabolism with increases in low-density lipoprotein (LDL) cholesterols and triglycerides and decreases in high-density lipoprotein (HDL) cholesterols. It has been shown that mulberry leaf and fruit ameliorated hyperglycemic and hyperlipidemic conditions in obese and diabetic subjects. We hypothesized that supplementation with mulberry leaf combined with mulberry fruit (MLFE) ameliorate cholesterol transfer proteins accompanied by reduction of oxidative stress in the high fat diet induced obesity. Mice were fed control diet (CON) or high fat diet (HF) for 9 weeks. After obesity was induced, the mice were administered either the HF or the HF with combination of equal amount of mulberry leaf and fruit extract (MLFE) at 500mg/kg/day by gavage for 12 weeks. MLFE treatment ameliorated HF induced oxidative stress demonstrated by 4-hydroxynonenal (4-HNE) and modulated the expression of 2 key proteins involved in cholesterol transfer such as scavenger receptor class B type 1 (SR-B1) and ATP-binding cassette transporter A1 (ABCA1) in the HF treated animals. This effect was mainly noted in liver tissue rather than in cutaneous tissue. Collectively, this study demonstrated that MLFE treatment has beneficial effects on the modulation of high fat diet-induced oxidative stress and on the regulation of cholesterol transporters. These results suggest that MLFE might be a beneficial substance for conventional therapies to treat obesity and its complications.
Collapse
Affiliation(s)
- Giuseppe Valacchi
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy. ; Department of Food and Nutrition, Kyung Hee University, 26, Kyunghee-ro, Dongdaemun-gu, Seoul 130-701, Korea
| | - Giuseppe Belmonte
- Dipartimento di Scienze Mediche, Chirurgiche e Neuroscienze, University of Siena, Siena, Italy
| | - Clelia Miracco
- Dipartimento di Scienze Mediche, Chirurgiche e Neuroscienze, University of Siena, Siena, Italy
| | - Hyeyoon Eo
- Department of Food and Nutrition, Kyung Hee University, 26, Kyunghee-ro, Dongdaemun-gu, Seoul 130-701, Korea
| | - Yunsook Lim
- Department of Food and Nutrition, Kyung Hee University, 26, Kyunghee-ro, Dongdaemun-gu, Seoul 130-701, Korea
| |
Collapse
|
39
|
Wang H, Eckel RH. What are lipoproteins doing in the brain? Trends Endocrinol Metab 2014; 25:8-14. [PMID: 24189266 PMCID: PMC4062975 DOI: 10.1016/j.tem.2013.10.003] [Citation(s) in RCA: 152] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 09/30/2013] [Accepted: 10/02/2013] [Indexed: 12/25/2022]
Abstract
Lipoproteins in plasma transport lipids between tissues, however, only high-density lipoproteins (HDL) appear to traverse the blood-brain barrier (BBB); thus, lipoproteins found in the brain must be produced within the central nervous system. Apolipoproteins E (ApoE) and ApoJ are the most abundant apolipoproteins in the brain, are mostly synthesized by astrocytes, and are found on HDL. In the hippocampus and other brain regions, lipoproteins help to regulate neurobehavioral functions by processes that are lipoprotein receptor-mediated. Moreover, lipoproteins and their receptors also have roles in the regulation of body weight and energy balance, acting through lipoprotein lipase (LPL) and the low-density lipoprotein (LDL) receptor-related protein (LRP). Thus, understanding lipoproteins and their metabolism in the brain provides a new opportunity with potential therapeutic relevance.
Collapse
Affiliation(s)
- Hong Wang
- Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, School of Medicine, University of Colorado Denver Anschutz Medical Campus, Aurora, CO 80045, USA.
| | - Robert H Eckel
- Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, School of Medicine, University of Colorado Denver Anschutz Medical Campus, Aurora, CO 80045, USA
| |
Collapse
|
40
|
Bedford HE, Valberg SJ, Firshman AM, Lucio M, Boyce MK, Trumble TN. Histopathologic findings in the sacrocaudalis dorsalis medialis muscle of horses with vitamin E-responsive muscle atrophy and weakness. J Am Vet Med Assoc 2013; 242:1127-37. [PMID: 23547678 DOI: 10.2460/javma.242.8.1127] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To characterize clinical findings, outcomes, muscle characteristics, and serum or muscle concentrations of α-tocopherol for horses with vitamin E-responsive signs of muscle atrophy and weakness consistent with signs of equine motor neuron disease (EMND). DESIGN Retrospective case-control study. ANIMALS 8 affected (case) adult horses with acute (n = 3) or chronic (5) gross muscle atrophy that improved with vitamin E treatment and 14 clinically normal (control) adult horses with adequate (within reference range; 8) or low (6) muscle concentrations of α-tocopherol. PROCEDURES Medical records were reviewed, serum and muscle concentrations of α-tocopherol were measured, and frozen biopsy specimens of sacrocaudalis dorsalis medialis muscle and gluteal muscle were histologically evaluated for pathological changes. Fiber type composition and fiber diameters were assessed in gluteal muscle specimens. RESULTS A myopathy that was histologically characterized by redistribution of mitochondrial enzyme stain (moth-eaten appearance) and anguloid atrophy of myofibers was evident in sacrocaudalis dorsalis medialis muscle fibers of the 8 affected horses that had low serum (6/8) or skeletal muscle (5/5) concentrations of α-tocopherol; these histopathologic changes were not found in muscle specimens of control horses with low or adequate muscle concentrations of α-tocopherol. All affected horses regained strength and muscle mass within 3 months after initiation of vitamin E treatment and dietary changes. CONCLUSIONS AND CLINICAL RELEVANCE A vitamin E-deficient myopathy characterized histologically by a moth-eaten appearance in the mitochondria and anguloid myofiber atrophy in frozen sections of sacrocaudalis dorsalis medialis muscle biopsy specimens was found in horses with clinical signs of EMND that were highly responsive to vitamin E treatment. This myopathy may be a specific syndrome or possibly precede the development of neurogenic muscle fiber atrophy typical of EMND.
Collapse
Affiliation(s)
- Holly E Bedford
- Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN 55108, USA.
| | | | | | | | | | | |
Collapse
|
41
|
Sticozzi C, Belmonte G, Pecorelli A, Cervellati F, Leoncini S, Signorini C, Ciccoli L, De Felice C, Hayek J, Valacchi G. Scavenger receptor B1 post-translational modifications in Rett syndrome. FEBS Lett 2013; 587:2199-204. [DOI: 10.1016/j.febslet.2013.05.042] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Accepted: 05/14/2013] [Indexed: 10/26/2022]
|
42
|
Abstract
Vitamin E was identified almost a century ago as a botanical compound necessary for rodent reproduction. Decades of research since then established that of all members of the vitamin E family, α-tocopherol is selectively enriched in human tissues, and it is essential for human health. The major function of α-tocopherol is thought to be that of a lipid-soluble antioxidant that prevents oxidative damage to biological components. As such, α-tocopherol is necessary for numerous physiological processes such as permeability of lipid bilayers, cell adhesion, and gene expression. Inadequate levels of α-tocopherol interfere with cellular function and precipitate diseases, notably ones that affect the central nervous system. The extreme hydrophobicity of α-tocopherol poses a serious thermodynamic barrier for proper distribution of the vitamin to target tissues and cells. Although transport of the vitamin shares some steps with that of other lipids, selected tissues evolved dedicated transport mechanisms involving the α-tocopherol transfer protein (αTTP). The critical roles of this protein and its ligand are underscored by the debilitating pathologies that characterize human carriers of mutations in the TTPA gene.
Collapse
Affiliation(s)
- Lynn Ulatowski
- Department of Nutrition, School of Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | | |
Collapse
|
43
|
Santander NG, Contreras-Duarte S, Awad MF, Lizama C, Passalacqua I, Rigotti A, Busso D. Developmental abnormalities in mouse embryos lacking the HDL receptor SR-BI. Hum Mol Genet 2012; 22:1086-96. [DOI: 10.1093/hmg/dds510] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
|
44
|
Finno C, Valberg S. A Comparative Review of Vitamin E and Associated Equine Disorders. J Vet Intern Med 2012; 26:1251-66. [DOI: 10.1111/j.1939-1676.2012.00994.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Revised: 05/29/2012] [Accepted: 07/18/2012] [Indexed: 12/12/2022] Open
Affiliation(s)
- C.J. Finno
- Department of Veterinary Population Medicine; College of Veterinary Medicine; University of Minnesota; St. Paul; MN
| | - S.J. Valberg
- Department of Veterinary Population Medicine; College of Veterinary Medicine; University of Minnesota; St. Paul; MN
| |
Collapse
|
45
|
Cigarette smoke affects keratinocytes SRB1 expression and localization via H2O2 production and HNE protein adducts formation. PLoS One 2012; 7:e33592. [PMID: 22442701 PMCID: PMC3307738 DOI: 10.1371/journal.pone.0033592] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Accepted: 02/11/2012] [Indexed: 11/19/2022] Open
Abstract
Scavenger Receptor B1 (SR-B1), also known as HDL receptor, is involved in cellular cholesterol uptake. Stratum corneum (SC), the outermost layer of the skin, is composed of more than 25% cholesterol. Several reports support the view that alteration of SC lipid composition may be the cause of impaired barrier function which gives rise to several skin diseases. For this reason the regulation of the genes involved in cholesterol uptake is of extreme significance for skin health. Being the first shield against external insults, the skin is exposed to several noxious substances and among these is cigarette smoke (CS), which has been recently associated with various skin pathologies. In this study we first have shown the presence of SR-B1 in murine and human skin tissue and then by using immunoblotting, immunoprecipitation, RT-PCR, and confocal microscopy we have demonstrated the translocation and the subsequent lost of SR-B1 in human keratinocytes (cell culture model) after CS exposure is driven by hydrogen peroxide (H2O2) that derives not only from the CS gas phase but mainly from the activation of cellular NADPH oxidase (NOX). This effect was reversed when the cells were pretreated with NOX inhibitors or catalase. Furthermore, CS caused the formation of SR-B1-aldheydes adducts (acrolein and 4-hydroxy-2-nonenal) and the increase of its ubiquitination, which could be one of the causes of SR-B1 loss. In conclusion, exposure to CS, through the production of H2O2, induced post-translational modifications of SR-B1 with the consequence lost of the receptor and this may contribute to the skin physiology alteration as a consequence of the variation of cholesterol uptake.
Collapse
|
46
|
Lysosomal vitamin E accumulation in Niemann–Pick type C disease. Biochim Biophys Acta Mol Basis Dis 2012; 1822:150-60. [DOI: 10.1016/j.bbadis.2011.11.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2011] [Revised: 11/04/2011] [Accepted: 11/09/2011] [Indexed: 11/22/2022]
|
47
|
Chen YC, Hsieh WY, Lee WF, Zeng DT. Effects of surface modification of PLGA-PEG-PLGA nanoparticles on loperamide delivery efficiency across the blood–brain barrier. J Biomater Appl 2011; 27:909-22. [DOI: 10.1177/0885328211429495] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
In this study, we developed a nanoparticle system for drug delivery across the blood–brain barrier (BBB). The nanoparticle consisting of loperamide and poly(lactide-co-glycolide)-poly(ethylene glycol)-poly(lactide-co-glycolide) (PLGA-PEG-PLGA) triblock copolymer were prepared by the nanoprecipitation method; then the nanoparticles were coated with poloxamer 188 or polysorbate 80. The effects of poloxamer 188 or polysorbate 80 on the physicochemical and pharmaceutical properties of the coated nanoparticles were investigated. Loperamide, which does not cross the blood–brain barrier (BBB) but exerts antinociceptive effects after direct injection into the brain, was encapsulated by different polymeric materials and used as a model drug. The in vitro BBB penetration study shows that the surfactant-coated PLGA-PEG-PLGA nanoparticles could have penetration of 14.4–21.2%, which was better than the PLGA-PEG-PLGA nanoparticles (PEP) (8.2%) and the PLGA nanoparticles (PN) (4.3%). The biopsy studies also confirm that the PEP coated by surfactant could increase the penetration. The results of nanoparticles accumulation in brain tissue show that the PEP coated by surfactant had a much higher concentration than both the PEP and the PN. Moreover, the maximal possible antinociception effect (MPE) for the surfactant-coated PEP was 21–35% at 150 min after administering the drug intravenously, which was significantly better than just the PEP (MPE: 11.6%). The results of the formalin test show that the surfactant-coated PEP administered intravenously 150 min prior to the formalin injection could greatly reduce the pain response in the first phase. The results demonstrate that the surfactant-coated PEP could help to deliver loperamide across the BBB.
Collapse
Affiliation(s)
- Yung-Chu Chen
- Tissue Regeneration Product Technology Division, Industrial Technology Research Institute, Hsinchu 31040, Taiwan
| | - Wen-Yuan Hsieh
- Tissue Regeneration Product Technology Division, Industrial Technology Research Institute, Hsinchu 31040, Taiwan
| | - Wen-Fu Lee
- Department of Chemical Engineering, Tatung University, Taipei 104, Taiwan
| | - Ding-Tai Zeng
- Department of Chemical Engineering, Tatung University, Taipei 104, Taiwan
| |
Collapse
|
48
|
Abstract
All animals endowed with the ability to detect light through visual pigments must have evolved pathways in which dietary precursors for the involved chromophore are absorbed, transported, and metabolized. Knowledge about this metabolism has exponentially increased over the past decade. Genetic manipulation of animal models provided insights into the metabolic flow of these compounds through the body and in the eyes, unraveling their regulatory aspects and aberrant side reactions. The scheme that emerges reveals a common origin of key components for chromophore metabolism that have been adapted to the specific requirements of retinoid biology in different animal classes.
Collapse
Affiliation(s)
- Johannes von Lintig
- Department of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, Ohio 44106, USA.
| |
Collapse
|
49
|
Tissue Distribution of α- and γ-Tocotrienol and γ-Tocopherol in Rats and Interference with Their Accumulation by α-Tocopherol. Lipids 2011; 47:129-39. [DOI: 10.1007/s11745-011-3620-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Accepted: 09/23/2011] [Indexed: 10/16/2022]
|
50
|
Valacchi G, Sticozzi C, Lim Y, Pecorelli A. Scavenger receptor class B type I: a multifunctional receptor. Ann N Y Acad Sci 2011; 1229:E1-7. [DOI: 10.1111/j.1749-6632.2011.06205.x] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|