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Aita SE, Montone CM, Taglioni E, Capriotti AL. Hempseed protein-derived short- and medium-chain peptides and their multifunctional properties. ADVANCES IN FOOD AND NUTRITION RESEARCH 2024; 110:275-325. [PMID: 38906589 DOI: 10.1016/bs.afnr.2024.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/23/2024]
Abstract
Nowadays, the growing knowledge about the high nutritional value and potential functionality of hempseeds, the edible fruits of the Cannabis sativa L. plant, has sparked a surge in interest in exploring the worthwhile attributes of hempseed proteins and peptides. This trend aligns with the increasing popularity of hemp-based food, assuming a vital role in the global food chain. This chapter targets the nutritional and chemical composition of hempseed in terms of short- and medium-chain bioactive peptides. The analytical approaches for their characterization and multifunctional properties are summarized in detail. Moreover, the processing, functionality, and application of various hempseed protein products are discussed. In the final part of the chapter-for evaluating their propensity to be transported by intestinal cells-the transepithelial transport of peptides within hempseed protein hydrolysate is highlighted.
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Affiliation(s)
- Sara Elsa Aita
- Department of Chemistry, Sapienza University of Rome, Rome, Italy
| | | | - Enrico Taglioni
- Department of Chemistry, Sapienza University of Rome, Rome, Italy
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Hempseed (Cannabis sativa) protein hydrolysates: A valuable source of bioactive peptides with pleiotropic health-promoting effects. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Aguchem RN, Okagu IU, Okagu OD, Ndefo JC, Udenigwe CC. A review on the techno‐functional, biological, and health‐promoting properties of hempseed‐derived proteins and peptides. J Food Biochem 2022; 46:e14127. [DOI: 10.1111/jfbc.14127] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/27/2022] [Accepted: 02/25/2022] [Indexed: 12/13/2022]
Affiliation(s)
- Rita Ngozi Aguchem
- Department of Biochemistry, Faculty of Biological Sciences University of Nigeria Nsukka Nigeria
| | | | - Ogadimma Desmond Okagu
- Department of Chemistry and Biomolecular Sciences, Faculty of Science University of Ottawa Ottawa Ontario Canada
| | - Joseph Chinedum Ndefo
- Department of Science Laboratory Technology, Faculty of Physical Sciences University of Nigeria Nsukka Nigeria
| | - Chibuike C. Udenigwe
- Department of Chemistry and Biomolecular Sciences, Faculty of Science University of Ottawa Ottawa Ontario Canada
- School of Nutrition Sciences, Faculty of Health Sciences University of Ottawa Ottawa Ontario Canada
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Huang W, Zeng Z, Lang Y, Xiang X, Qi G, Lu G, Yang X. Cannabis Seed Oil Alleviates Experimental Atherosclerosis by Ameliorating Vascular Inflammation in Apolipoprotein-E-Deficient Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:9102-9110. [PMID: 34037390 DOI: 10.1021/acs.jafc.0c07251] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In recent decades, epidemiological, clinical, and experimental studies have demonstrated that a diet with antioxidant or anti-inflammatory function plays a central role in the prevention of atherosclerosis (AS). The purpose of this study was to explore the effects of Cannabis seed oil (CO) administration on in vitro antioxidant capacity as well as blood lipid profiles, lipid peroxidation, inflammatory response, and endothelial cell integrity. Female ApoE-/- mice were fed a high-cholesterol diet and administrated with CO or phosphate-buffered saline (PBS) and seal oil by gavage for 8 weeks. The results show that CO administration reduced the levels of serum triglycerides and low-density lipoprotein cholesterol at week 6. Additionally, a decrease in serum tumor necrosis factor α and nitric oxide was also observed. Moreover, results from CD31 staining and scanning electron microscopy revealed that CO treatment alleviated the endothelial cell damage and lipid deposition induced by a high-cholesterol diet. The ratio of lesion area to the total aorta area was 19.57% for the CO group, which was lower than the PBS control group (24.67%). Collectively, CO exerted anti-atherosclerotic effects by modulating serum lipid profiles and inflammatory responses and improving endothelial cell integrity and arterial lipid deposition. The results provide a promising preventive strategy for the early progression of AS.
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Affiliation(s)
- Wenjing Huang
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, Hubei 430023, People's Republic of China
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, People's Republic of China
| | - Zhujun Zeng
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, People's Republic of China
| | - Yan Lang
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, People's Republic of China
| | - Xia Xiang
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, Hubei 430062, People's Republic of China
| | - Gaofu Qi
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, People's Republic of China
| | - Gan Lu
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, People's Republic of China
| | - Xiangliang Yang
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074, People's Republic of China
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Kaur S, Garg A, Kaushal N. Hempseed (Cannabis sativa) offers effective alternative over statins in ameliorating hypercholesterolemia associated nephropathy. Clin Biochem 2021; 93:104-111. [PMID: 33861983 DOI: 10.1016/j.clinbiochem.2021.04.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 03/24/2021] [Accepted: 04/09/2021] [Indexed: 01/05/2023]
Abstract
A direct link between hypercholesterolemia (HC) and renal pathologies has been established. Statins, the drugs of choice for HC management, have been associated with various side effects and toxicities, including nephropathy and other renal insults. Thus, natural dietary products based-alternative strategies for HC and associated pathologies are being considered. OBJECTIVES Based on the unique nutritional composition and numerous health benefits of Hempseeds (Cannabis sativa), currently the potential anti-inflammatory and redox modulatory effects of hempseeds lipid extract (HEMP) against HC associated renal damage were evaluated and compared with statins (Simvastatin) in HFD induced experimental model of HC in rats. DESIGN & METHODS The hempseed lipid fractions (HEMP) were prepared and their ameliorating effects on HFD induced lipid profiles, renal function markers (RFT), histopathological/morphological changes, renal oxidative stress, and inflammation markers were studied and compared with statins (HFD + STATINS). Further, HEMP-mediated modulation of lipid metabolism mediators (APO-B/E) was studied. RESULTS Not only, HEMP administration improved the lipid profiles and morphological signs of HC, but it also was safe compared to Simvastatin in terms of hepatic and renal function markers. Further, changes in renal histoarchitecture, biochemical markers of oxidative stress, and expression profiles of lipid metabolism and inflammatory pathways (Cox-1/2, PGDS, PGES) revealed that HEMP positively modulating the redox homeostasis activated the resolution pathways against HC associated renal insults. CONCLUSION The outcomes of the current study indicated HEMP's ameliorative and therapeutic potential against hypercholesterolemia-associated nephropathies and other systemic effects.
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Affiliation(s)
- Simarpreet Kaur
- Department of Biophysics, Panjab University, Chandigarh 160014, India
| | - Ayushi Garg
- Department of Biophysics, Panjab University, Chandigarh 160014, India
| | - Naveen Kaushal
- Department of Biophysics, Panjab University, Chandigarh 160014, India.
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Cardiac and Metabolic Impact of Functional Foods with Antioxidant Properties Based on Whey Derived Proteins Enriched with Hemp Seed Oil. Antioxidants (Basel) 2020; 9:antiox9111066. [PMID: 33143213 PMCID: PMC7692817 DOI: 10.3390/antiox9111066] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/23/2020] [Accepted: 10/28/2020] [Indexed: 12/18/2022] Open
Abstract
The impaired ability to feed properly, evident in oncologic, elderly, and dysphagic patients, may result in malnutrition and sarcopenia. Increasing the consumption of dietary proteins by functional foods and enriching their composition by adding beneficial nutrients may represent an adjuvant therapy. We aimed to evaluate the safety and the positive effects of a standard diet (SD) supplemented with whey-derived protein puddings (WDPP), with appropriate rheological properties, and hemp seed oil (HSO), rich in polyphenols. Rats were assigned to SD, WDPP, WDPP plus hemp seed oil (HSOP), and HSO supplemented diets for eight weeks. “Anthropometric”, metabolic, and biochemical variables, oxidative stress, tissue injury, liver histology, and cardiac susceptibility to ischemia/reperfusion were analyzed. All the supplementations did not induce significant changes in biochemical and metabolic variables, also in relation to glucose tolerance, and livers did not undergo morphological alteration and injury. An improvement of cardiac post-ischemic function in the Langendorff perfused heart model and a reduction of infarct size were observed in WDPP and HSOP groups, thanks to their antioxidant effects and the activation of Akt- and AMPK-dependent protective pathways. Data suggest that (i) functional foods enriched with WDPP and HSOP may be used to approach malnutrition and sarcopenia successfully under disabling conditions, also conferring cardioprotection, and that (ii) adequate rheological properties could positively impact dysphagia-related problems.
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Kaushal N, Gupta M, Kulshreshtha E. Hempseed ( Cannabis sativa) lipid fractions alleviate high-fat diet-induced fatty liver disease through regulation of inflammation and oxidative stress. Heliyon 2020; 6:e04422. [PMID: 32685737 PMCID: PMC7358726 DOI: 10.1016/j.heliyon.2020.e04422] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/22/2020] [Accepted: 07/07/2020] [Indexed: 01/03/2023] Open
Abstract
Diet and lifestyle-induced dysregulated lipid metabolism have been implicated in fatty liver disease. Chronic redox modulation and hepatic inflammation are key pathological mediators and hallmarks of fatty liver disease associated liver steatosis and steatohepatitis. In this context, owing to the beneficial phytochemical properties such as optimal omega-6: omega-3 PUFA ratio of hempseed, we aimed to explore its potential anti-inflammatory and antioxidant properties against high-fat diet (HFD)-induced experimental model of fatty liver disease. The hempseed lipid fractions (HEMP) were prepared and their ameliorating effects on HFD induced morphological changes, lipid profiles, liver function markers (LFT), markers of oxidative stress and inflammation were studied. Results indicated that HEMP administration to hypercholesterolemic rats resolved the morphological, histopathological, and biochemical indicators of fatty liver diseases. Further, the mechanistic evidence revealed that these hepatoprotective effects of HEMP are mediated through inhibition of oxidative stress and inflammatory mediators such as Cox-2, hPGDS, mPGES, IL-4, TNF-α and sEH. In conclusion, current study suggests the plausible antioxidant and anti-inflammatory role of HEMP in alleviating pathophysiological conditions including fatty liver disease, where oxidative stress and inflammation are key mediators.
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Affiliation(s)
- Naveen Kaushal
- Department of Biophysics, Panjab University, Chandigarh, 160014, India
| | - Megha Gupta
- Department of Biophysics, Panjab University, Chandigarh, 160014, India
| | - Era Kulshreshtha
- Department of Biophysics, Panjab University, Chandigarh, 160014, India
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Farinon B, Molinari R, Costantini L, Merendino N. The seed of industrial hemp ( Cannabis sativa L.): Nutritional Quality and Potential Functionality for Human Health and Nutrition. Nutrients 2020; 12:nu12071935. [PMID: 32610691 PMCID: PMC7400098 DOI: 10.3390/nu12071935] [Citation(s) in RCA: 134] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/19/2020] [Accepted: 06/23/2020] [Indexed: 02/07/2023] Open
Abstract
Hempseeds, the edible fruits of the Cannabis sativa L. plant, were initially considered a by-product of the hemp technical fibre industry. Nowadays, following the restorationing of the cultivation of C. sativa L. plants containing an amount of delta-9-tetrahydrocannabinol (THC) <0.3% or 0.2% (industrial hemp) there is a growing interest for the hempseeds production due to their high nutritional value and functional features. The goal of this review is to examine the scientific literature concerning the nutritional and functional properties of hempseeds. Furthermore, we revised the scientific literature regarding the potential use of hempseeds and their derivatives as a dietary supplement for the prevention and treatment of inflammatory and chronic-degenerative diseases on animal models and humans too. In the first part of the work, we provide information regarding the genetic, biochemical, and legislative aspects of this plant that are, in our opinion essential to understand the difference between “industrial” and “drug-type” hemp. In the final part of the review, the employment of hempseeds by the food industry as livestock feed supplement and as ingredient to enrich or fortify daily foods has also revised. Overall, this review intends to encourage further and comprehensive investigations about the adoption of hempseeds in the functional foods field.
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Kaushal N, Dhadwal S, Kaur P. Ameliorative effects of hempseed (Cannabis sativa) against hypercholesterolemia associated cardiovascular changes. Nutr Metab Cardiovasc Dis 2020; 30:330-338. [PMID: 31668458 DOI: 10.1016/j.numecd.2019.09.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 08/23/2019] [Accepted: 09/06/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND AIM Hypercholesterolemia (HC) is a major risk factor for cardiovascular (CV) diseases, that are the major cause of mortality worldwide. Free radicals mediated oxidative stress is a critical player in HC-associated pathophysiological insults including atherosclerosis. Unwanted side effects associated with statins, COX-2 inhibitors, and other synthetic drugs limit their use. Thus, modulation of oxidative stress during HC using green pharmaceuticals seems an appropriate approach against deleterious CV consequences without noticeable side-effect. In this regard, owing to an abundance of proteins, fiber and optimal ratios of omega 6 PUFA: omega-3 PUFA in Hempseed (HS), we aim to exploit its anti-inflammatory and antioxidant properties to ameliorate HC- associated CV effects. METHODS AND RESULTS Comparing the antioxidant capacity of protein and lipid fractions of HS using ABTS and DPPH assays, HS was supplemented to high-fat diets (HFD) induced hypercholesterolemic wistar rats. After treatment schedules, lipid profiles, histological and ultrastructural investigations, gene and protein expressions of inflammatory markers, markers of oxidative stress were studied and correlated with biophysical parameters such as ECG and impedance/conductance across the aorta. HS demonstrating in vitro free radical scavenging activity, ameliorated the signs of HC as seen with improved lipid profiles, aortic tissue damage and ECG patterns compared to HFD groups. HS administration also relieved the COX-2 mediated inflammation, which correlated well with the improved redox status in the tissue. CONCLUSIONS Current study evidently demonstrates that the anti-hypercholesterolemic effects of HS are mediated through redox-sensitive modulation of inflammatory pathways.
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Affiliation(s)
- Naveen Kaushal
- Department of Biophysics, Panjab University, Chandigarh, 160014, India.
| | - Shallu Dhadwal
- Department of Biophysics, Panjab University, Chandigarh, 160014, India
| | - Parminder Kaur
- Department of Biotechnology, University Institute of Engineering and Technology (UIET), Panjab University, Chandigarh, India
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Del Bo' C, Deon V, Abello F, Massini G, Porrini M, Riso P, Guardamagna O. Eight-week hempseed oil intervention improves the fatty acid composition of erythrocyte phospholipids and the omega-3 index, but does not affect the lipid profile in children and adolescents with primary hyperlipidemia. Food Res Int 2018; 119:469-476. [PMID: 30884679 DOI: 10.1016/j.foodres.2018.12.045] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 12/17/2018] [Accepted: 12/22/2018] [Indexed: 12/17/2022]
Abstract
Children affected by primary hyperlipidemia have a high risk of developing cardiovascular diseases (CVDs) during adulthood. Several studies have reported a positive association between the intake of polyunsaturated fatty acids (PUFAs) and improvements in lipid markers and CVD risk. Dietary supplements may represent a potential strategy in the management of hyperlipidemia. In this context, the effectiveness of hempseed oil (HSO) rich in PUFAs (particularly linoleic acid (LA) and α-linolenic acid (ALA)) in the modulation of hyperlipidemia has been poorly investigated. The present pilot study aimed to explore the impact of HSO supplementation on the serum lipid profile and fatty acid (FA) composition of red blood cells (RBCs) in children and adolescents with primary hyperlipidemia. A randomized, 8 week long, parallel dietary intervention study was performed. Thirty-six hyperlipidemic probands (6-16 years) on diet therapy were randomized into two groups: the HSO group, receiving 3 g of HSO providing 1.4 g of LA and 0.7 g/day of ALA, and the control group. Both groups received specific dietary guidelines. Before and after the intervention, blood samples were collected and the serum lipid profile, FA composition of RBCs and omega-3-index were analyzed. Eight weeks of supplementation with HSO significantly (p < .01) reduced the RBC content of total saturated and monounsaturated FAs (-5.02 ± 7.94% and - 2.12 ± 2.23%, respectively), increased the levels of total n-3 and n-6 PUFAs (+1.57 ± 1.96% and + 5.39 ± 7.18%, respectively) and the omega-3 index (+1.18 ± 1.42%), but failed to affect the serum lipid profile compared to the control group. In conclusion, our findings seem to support the contribution of HSO supplementation in improving the RBC phospholipid composition and omega-3 index, while no effect was observed regarding modulation of the lipid profile. Further controlled studies are necessary to achieve a complete understanding of the effects of HSO in the modulation of hyperlipidemia and CVD risk in this and other target groups.
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Affiliation(s)
- Cristian Del Bo'
- Division of Human Nutrition, Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, Milan, Italy
| | - Valeria Deon
- Division of Human Nutrition, Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, Milan, Italy
| | - Francesca Abello
- Department of Public Health and Pediatric Sciences, Università degli Studi di Torino, Turin, Italy
| | - Giulia Massini
- Department of Public Health and Pediatric Sciences, Università degli Studi di Torino, Turin, Italy
| | - Marisa Porrini
- Department of Public Health and Pediatric Sciences, Università degli Studi di Torino, Turin, Italy
| | - Patrizia Riso
- Division of Human Nutrition, Department of Food, Environmental and Nutritional Sciences, Università degli Studi di Milano, Milan, Italy
| | - Ornella Guardamagna
- Department of Public Health and Pediatric Sciences, Università degli Studi di Torino, Turin, Italy.
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Aiello G, Lammi C, Boschin G, Zanoni C, Arnoldi A. Exploration of Potentially Bioactive Peptides Generated from the Enzymatic Hydrolysis of Hempseed Proteins. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:10174-10184. [PMID: 29096438 DOI: 10.1021/acs.jafc.7b03590] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The seed of industrial hemp is an underexploited protein source. In view of a possible use in functional foods, a hempseed protein concentrate was hydrolyzed with pepsin, trypsin, pancreatin, or a mixture of these enzymes. A detailed peptidomic analysis using data-dependent acquisition showed that the numbers of peptides identified ranged from 90 belonging to 33 parent proteins in the peptic hydrolysate to 9 belonging to 6 proteins in the pancreatin digest. The peptic and tryptic hydrolysates resulted to be the most efficient inhibitors of 3-hydroxymethyl-coenzyme A reductase activity when tested on the catalytic domain of the enzyme. Using the open access tools PeptideRanker and BIOPEP, a list of potentially bioactive peptides was generated: the alleged activities included the antioxidant property, the glucose uptake stimulating activity, the inhibition of dipeptidyl peptidase-IV and angiotensin-converting enzyme I.
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Affiliation(s)
- Gilda Aiello
- Department of Pharmaceutical Sciences, University of Milan , via Luigi Mangiagalli 25, 20133 Milan, Italy
| | - Carmen Lammi
- Department of Pharmaceutical Sciences, University of Milan , via Luigi Mangiagalli 25, 20133 Milan, Italy
| | - Giovanna Boschin
- Department of Pharmaceutical Sciences, University of Milan , via Luigi Mangiagalli 25, 20133 Milan, Italy
| | - Chiara Zanoni
- Department of Pharmaceutical Sciences, University of Milan , via Luigi Mangiagalli 25, 20133 Milan, Italy
| | - Anna Arnoldi
- Department of Pharmaceutical Sciences, University of Milan , via Luigi Mangiagalli 25, 20133 Milan, Italy
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Zanoni C, Aiello G, Arnoldi A, Lammi C. Hempseed Peptides Exert Hypocholesterolemic Effects with a Statin-Like Mechanism. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:8829-8838. [PMID: 28931275 DOI: 10.1021/acs.jafc.7b02742] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
This study had the objective of preparing a hempseed protein hydrolysate and investigating its hypocholesterolemic properties. The hydrolysate was prepared treating a total protein extract with pepsin. Nano HPLC-ESI-MS/MS analysis permitted identifying in total 90 peptides belonging to 33 proteins. In the range 0.1-1.0 mg/mL, it inhibited the catalytic activity of 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGCoAR) in a dose-dependent manner. HepG2 cells were treated with 0.25, 0.5, and 1.0 mg/mL of the hydrolysate. Immunoblotting detection showed increments in the protein levels of regulatory element binding proteins 2 (SREBP2), low-density lipoprotein receptor (LDLR), and HMGCoAR. However, the parallel activation of the phospho-5'-adenosine monophosphate-activated protein kinase (AMPK) pathway, produced an inactivation of HMGCoAR by phosphorylation. The functional ability of HepG2 cells to uptake extracellular LDL was raised by 50.5 ± 2.7%, 221.5 ± 1.6%, and 109 ± 3.5%, respectively, versus the control at 0.25, 0.5, and 1.0 mg/mL concentrations. Finally, also a raise of the protein level of proprotein convertase subtilisin/kexintype 9 was observed. All of these data suggest that the mechanism of action has some similarity with that of statins.
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Affiliation(s)
- Chiara Zanoni
- Department of Pharmaceutical Sciences, University of Milan , Milan, Italy
| | - Gilda Aiello
- Department of Pharmaceutical Sciences, University of Milan , Milan, Italy
| | - Anna Arnoldi
- Department of Pharmaceutical Sciences, University of Milan , Milan, Italy
| | - Carmen Lammi
- Department of Pharmaceutical Sciences, University of Milan , Milan, Italy
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Boucheix O, Blakytny R, Haroutunian G, Henriksson M, Laporte R, Milano S, Reinheimer TM. Selepressin and Arginine Vasopressin Do Not Display Cardiovascular Risk in Atherosclerotic Rabbit. PLoS One 2016; 11:e0165422. [PMID: 27788216 PMCID: PMC5082805 DOI: 10.1371/journal.pone.0165422] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 10/11/2016] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Septic shock remains associated with significant mortality rates. Arginine vasopressin (AVP) and analogs with V1A receptor agonist activity are increasingly used to treat fluid-resistant vasodilatory hypotension, including catecholamine-refractory septic shock. Clinical studies have been restricted to healthy volunteers and catecholamine-refractory septic shock patients excluding subjects with cardiac co-morbidities because of presumed safety issues. The novel selective V1A receptor agonist selepressin, with short half-life, has been designed to avoid V2 receptor-related complications and long-term V1A receptor activation. Cardiovascular safety of selepressin, AVP, and the septic shock standard of care norepinephrine was investigated in a rabbit model of early-stage atherosclerosis. METHODS Atherosclerosis was established in New Zealand White rabbits using a 1% cholesterol-containing diet. Selepressin, AVP, or norepinephrine was administered as cumulative intravenous infusion rates to atherosclerotic and non-atherosclerotic animals. RESULTS Selepressin and AVP induced a slight dose-dependent increase in arterial pressure (AP) associated with a moderate decrease in heart rate, no change in stroke volume, and a moderate decrease in aortic blood flow (ABF). In contrast, norepinephrine induced a marked dose-dependent increase in AP associated with a lesser decrease in the heart rate, an increase in stroke volume, and a moderate increase in ABF. For all three vasopressors, there was no difference in responses between atherosclerotic and non-atherosclerotic animals. CONCLUSION Further studies should be considered using more advanced atherosclerosis models, including with septic shock, before considering septic shock clinical trials of patients with comorbidities. Here, selepressin and AVP treatments did not display relevant cardiovascular risk in early-stage rabbit atherosclerosis.
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Affiliation(s)
| | | | | | | | - Regent Laporte
- Laporte & Associates LLC – Biotech & Pharma R&D Consultants, San Diego, California, United States of America
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