1
|
Herbal Cannabis Use Is Not Associated with Changes in Levels of Endocannabinoids and Metabolic Profile Alterations among Older Adults. LIFE (BASEL, SWITZERLAND) 2022; 12:life12101539. [PMID: 36294974 PMCID: PMC9604681 DOI: 10.3390/life12101539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 09/21/2022] [Accepted: 09/30/2022] [Indexed: 11/06/2022]
Abstract
Simple Summary The endocannabinoid system is a complex cell-signaling system that has numerous effects on the human body, including on the heart, blood vessels, and metabolism. In this study, we aimed to assess the effects of exogenous herbal medical cannabis use on the components of the endocannabinoid system among older adults with a diagnosis of hypertension. Medical cannabis is a product containing cannabinoids used for medical purposes. Herbal cannabis contains many types of cannabinoids, the most well-known of which are Δ9-tetrahydrocannabinol and cannabidiol. We followed people aged 60 years and older and conducted a number of tests, including endocannabinoids levels, before they started using cannabis and following three months of daily cannabis treatment. Fifteen patients (53.3% male; mean age, 69.5 years) underwent complete evaluations. We found positive correlations between the components of the endocannabinoid system and blood lipids, markers of inflammation, and blood pressure. On average, cannabis treatment for 3 months does not result in a significant change in the levels of endogenous cannabinoids and thus has a safe metabolic risk profile. This study provides additional evidence for the safety of medical cannabis use among older adults. Abstract Activation of the endocannabinoid system has various cardiovascular and metabolic expressions, including increased lipogenesis, decreased blood pressure, increased heart rate, and changes in cholesterol levels. There is a scarcity of data on the metabolic effects of exogenous cannabis in older adults; therefore, we aimed to assess the effect of exogenous cannabis on endocannabinoid levels and the association with changes in 24 h ambulatory blood pressure and lipid levels. We conducted a prospective study of patients aged 60 years or more with hypertension treated with a new prescription of herbal cannabis. We assessed changes in endocannabinoids, blood pressure, and metabolic parameters prior to and following three months of cannabis use. Fifteen patients with a mean age of 69.47 ± 5.83 years (53.3% male) underwent complete evaluations. Changes in 2-arachidonoylglycerol, an endocannabinoid, were significantly positively correlated with changes in triglycerides. Changes in arachidonic acid levels were significantly positively correlated with changes in C-reactive protein and with changes in mean diastolic blood pressure. Exogenous consumption of cannabidiol was negatively correlated with endogenous levels of palmitoylethanolamide and oleoylethanolamide. On average, cannabis treatment for 3 months does not result in a significant change in the levels of endogenous cannabinoids and thus has a safe metabolic risk profile.
Collapse
|
2
|
Watkins BA, Friedman AN, Kim J, Borkowski K, Kaiser S, Fiehn O, Newman JW. Blood Levels of Endocannabinoids, Oxylipins, and Metabolites Are Altered in Hemodialysis Patients. Int J Mol Sci 2022; 23:ijms23179781. [PMID: 36077177 PMCID: PMC9456435 DOI: 10.3390/ijms23179781] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 11/17/2022] Open
Abstract
Hemodialysis patients (HDPs) have higher blood pressure, higher levels of inflammation, a higher risk of cardiovascular disease, and unusually low plasma n-3 polyunsaturated fatty acid (PUFA) levels compared to healthy subjects. The objective of our investigation was to examine the levels of endocannabinoids (eCBs) and oxylipins (OxLs) in female HDPs compared to healthy matched female controls, with the underlying hypothesis that differences in specific PUFA levels in hemodialysis patients would result in changes in eCBs and OxLs. Plasma phospholipid fatty acids were analyzed by gas chromatography. Plasma was extracted and analyzed using ultra-performance liquid chromatography followed by electrospray ionization and tandem MS for eCBs and OxLs. The global untargeted metabolite profiling of plasma was performed by GCTOF MS. Compared to the controls, HDPs showed lower levels of plasma EPA and the associated OxL metabolites 5- and 12-HEPE, 14,15-DiHETE, as well as DHA derived 19(20)-EpDPE. Meanwhile, no changes in arachidonylethanolamide or 2-arachidonylglycerol in the open circulation were detected. Higher levels of multiple N-acylethanolamides, monoacylglycerols, biomarkers of progressive kidney disease, the nitric oxide metabolism-linked citrulline, and the uremic toxins kynurenine and creatine were observed in HDP. These metabolic differences in cCBs and OxLs help explain the severe inflammatory and cardiovascular disease manifested by HDPs, and they should be explored in future studies.
Collapse
Affiliation(s)
- Bruce A. Watkins
- Department of Nutrition, University of California, Davis, CA 95616, USA
- Correspondence:
| | - Allon N. Friedman
- University Hospital, Suite 6100, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Jeffrey Kim
- Department of Internal Medicine, University of California, Davis, CA 95616, USA
| | - Kamil Borkowski
- West Coast Metabolomics Center, Genome Center, University of California, Davis, CA 95616, USA
| | | | - Oliver Fiehn
- West Coast Metabolomics Center, University of California, Davis, CA 95616, USA
| | - John W. Newman
- Obesity and Metabolism Research Unit, USDA-ARS Agriculture Research Service, Davis, CA 95616, USA
| |
Collapse
|
3
|
Khunluck T, Lertsuwan K, Chutoe C, Sooksawanwit S, Inson I, Teerapornpuntakit J, Tohtong R, Charoenphandhu N. Activation of cannabinoid receptors in breast cancer cells improves osteoblast viability in cancer-bone interaction model while reducing breast cancer cell survival and migration. Sci Rep 2022; 12:7398. [PMID: 35513484 PMCID: PMC9072415 DOI: 10.1038/s41598-022-11116-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 04/05/2022] [Indexed: 12/13/2022] Open
Abstract
The endocannabinoid system has been postulated to help restrict cancer progression and maintain osteoblastic function during bone metastasis. Herein, the effects of cannabinoid receptor (CB) type 1 and 2 activation on breast cancer cell and osteoblast interaction were investigated by using ACEA and GW405833 as CB1 and CB2 agonists, respectively. Our results showed that breast cancer cell (MDA-MB-231)-derived conditioned media markedly decreased osteoblast-like UMR-106 cell viability. In contrast, media from MDA-MB-231 cells pre-treated with GW405833 improved UMR-106 cell viability. MDA-MB-231 cells were apparently more susceptible to both CB agonists than UMR-106 cells. Thereafter, we sought to answer the question as to how CB agonists reduced MDA-MB-231 cell virulence. Present data showed that co-activation of CB1 and CB2 exerted cytotoxic effects on MDA-MB-231 cells by increasing apoptotic cell death through suppression of the NF-κB signaling pathway in an ROS-independent mechanism. ACEA or GW405833 alone or in combination also inhibited MDA-MB-231 cell migration. Thus, it can be concluded that the endocannabinoid system is able to provide protection during breast cancer bone metastasis by interfering cancer and bone cell interaction as well as by the direct suppression of cancer cell growth and migration.
Collapse
Affiliation(s)
- Tueanjai Khunluck
- Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, 10400, Thailand.,Faculty of Nursing, HRH Princess Chulabhorn College of Medical Science, Chulabhorn Royal Academy, Bangkok, Thailand
| | - Kornkamon Lertsuwan
- Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, 10400, Thailand. .,Department of Biochemistry, Faculty of Science, Mahidol University, Rama VI Road, Bangkok, 10400, Thailand.
| | - Chartinun Chutoe
- Department of Biochemistry, Faculty of Science, Mahidol University, Rama VI Road, Bangkok, 10400, Thailand
| | - Supagarn Sooksawanwit
- Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, 10400, Thailand.,Department of Physiology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Ingon Inson
- Department of Biochemistry, Faculty of Science, Mahidol University, Rama VI Road, Bangkok, 10400, Thailand
| | - Jarinthorn Teerapornpuntakit
- Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, 10400, Thailand.,Department of Physiology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - Rutaiwan Tohtong
- Department of Biochemistry, Faculty of Science, Mahidol University, Rama VI Road, Bangkok, 10400, Thailand
| | - Narattaphol Charoenphandhu
- Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, 10400, Thailand.,Department of Physiology, Faculty of Science, Mahidol University, Bangkok, Thailand.,Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand.,The Academy of Science, The Royal Society of Thailand, Bangkok, Thailand
| |
Collapse
|
4
|
Klawitter J, Sempio C, Jackson MJ, Smith PH, Hopp K, Chonchol M, Gitomer BY, Christians U, Klawitter J. Endocannabinoid System in Polycystic Kidney Disease. Am J Nephrol 2022; 53:264-272. [PMID: 35263737 PMCID: PMC9173653 DOI: 10.1159/000522113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 01/06/2022] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Autosomal dominant polycystic kidney disease (ADPKD) is a commonly inherited disorder characterized by renal cyst formation. A major pathological feature of ADPKD is the development of interstitial inflammation. The endocannabinoid (EC) system is present in the kidney and has recently emerged as an important player in inflammation and the pathogenesis of progressive kidney disease. METHODS Data on ECs were collected using a validated mass spectrometry assay from a well-characterized cohort of 102 ADPKD patients (at baseline and after 2- and 4 years on standard vs. rigorous blood-pressure control) and compared to 100 healthy subjects. RESULTS Compared to healthy individuals, we found higher interleukins-6 and -1b as well as reduced plasma levels of anandamide (AEA), 2-arachidonoyl-glycerol (2-AG), and their congeners in ADPKD patients. Baseline AEA concentration negatively associated with the progression of ADPKD as expressed by the yearly percent change in height-corrected total kidney volume and positively with the yearly change in renal function (measured as estimated glomerular filtration rate, ΔeGFR). AEA analog palmitoylethanolamide (PEA) is also associated positively with the yearly change in eGFR. DISCUSSION AND CONCLUSION The results of the present study suggest that ADPKD patients present with lower levels of ECs and that reestablishing the normality of the renal EC system via augmentation of AEA, PEA, and 2-AG levels, either through the increase of their synthesis or through a reduction of their degradation, could be beneficial and may present a promising therapeutic target in said patients.
Collapse
Affiliation(s)
- Jost Klawitter
- Deparment of Anesthesiology, University of Colorado Denver, Denver, Colorado, USA
| | - Cristina Sempio
- Deparment of Anesthesiology, University of Colorado Denver, Denver, Colorado, USA
| | - Matthew J Jackson
- Deparment of Anesthesiology, University of Colorado Denver, Denver, Colorado, USA
| | - Peter H Smith
- Deparment of Anesthesiology, University of Colorado Denver, Denver, Colorado, USA
| | - Katharina Hopp
- Division of Renal Diseases and Hypertension, University of Colorado School of Medicine, Denver, Colorado, USA
| | - Michel Chonchol
- Division of Renal Diseases and Hypertension, University of Colorado School of Medicine, Denver, Colorado, USA
| | - Berenice Y Gitomer
- Division of Renal Diseases and Hypertension, University of Colorado School of Medicine, Denver, Colorado, USA
| | - Uwe Christians
- Deparment of Anesthesiology, University of Colorado Denver, Denver, Colorado, USA
| | - Jelena Klawitter
- Deparment of Anesthesiology, University of Colorado Denver, Denver, Colorado, USA.,Division of Renal Diseases and Hypertension, University of Colorado School of Medicine, Denver, Colorado, USA
| |
Collapse
|
5
|
Ulu A, Burr A, Heires AJ, Pavlik J, Larsen T, Perez PA, Bravo C, DiPatrizio NV, Baack M, Romberger DJ, Nordgren TM. A high docosahexaenoic acid diet alters lung inflammation and recovery following repetitive exposure to aqueous organic dust extracts. J Nutr Biochem 2021; 97:108797. [PMID: 34126202 PMCID: PMC8725620 DOI: 10.1016/j.jnutbio.2021.108797] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 12/15/2022]
Abstract
Agricultural workers, especially those who work in swine confinement facilities, are at increased risk for developing pulmonary diseases including asthma, chronic obstructive pulmonary disease, and chronic bronchitis due to exposures to fumes, vapors, and organic dust. Repetitive exposure to agricultural dust leads to unresolved inflammation, a common underlying mechanism that worsens lung disease. Besides occupational exposure to dusts, diet also significantly contributes to inflammation and disease progression. Since DHA (docosahexaenoic acid), a polyunsaturated omega-3 fatty acid and its bioactive metabolites have key roles in inflammation resolution, we rationalized that individuals chronically exposed to organic dusts can benefit from dietary modifications. Here, we evaluated the role of DHA in modifying airway inflammation in a murine model of repetitive exposure to an aqueous extract of agricultural dust (three-week exposure to swine confinement dust extract, HDE) and after a one-week resolution/recovery period. We found that mice fed a high DHA diet had significantly increased bronchoalveolar lavage fluid (BALF) levels of DHA-derived resolvins and lower TNFα along with altered plasma levels of endocannabinoids and related lipid mediators. Following the one-week recovery we identified significantly reduced BALF cellularity and cytokine/chemokine release along with increased BALF amphiregulin and resolvins in DHA diet-fed versus control diet-fed mice challenged with HDE. We further report observations on the effects of repetitive HDE exposure on lung Ym1+ and Arg-1+ macrophages. Overall, our findings support a protective role for DHA and identify DHA-derived resolvins and endocannabinoids among the potential mediators of DHA in altering airway inflammation in chronic agricultural dust exposure.
Collapse
Affiliation(s)
- Arzu Ulu
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, Riverside, California, USA
| | - Abigail Burr
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, Riverside, California, USA
| | - Art J Heires
- Pulmonary, Critical Care, Sleep and Allergy Division, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Jacqueline Pavlik
- Pulmonary, Critical Care, Sleep and Allergy Division, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Tricia Larsen
- Children's Health Research Center, Sanford Research, Sioux Falls, South Dakota, USA
| | - Pedro A Perez
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, Riverside, California, USA
| | - Carissa Bravo
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, Riverside, California, USA
| | - Nicholas V DiPatrizio
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, Riverside, California, USA
| | - Michelle Baack
- Children's Health Research Center, Sanford Research, Sioux Falls, South Dakota, USA; Division of Neonatology, University of South Dakota-Sanford School of Medicine, Sioux Falls, South Dakota, USA
| | - Debra J Romberger
- VA Nebraska-Western Iowa Healthcare System, Omaha, Nebraska, USA; Pulmonary, Critical Care, Sleep and Allergy Division, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Tara M Nordgren
- Division of Biomedical Sciences, School of Medicine, University of California, Riverside, Riverside, California, USA; Pulmonary, Critical Care, Sleep and Allergy Division, University of Nebraska Medical Center, Omaha, Nebraska, USA.
| |
Collapse
|
6
|
Pai AY, Wenziger C, Streja E, Argueta DA, DiPatrizio NV, Rhee CM, Vaziri ND, Kalantar-Zadeh K, Piomelli D, Moradi H. Impact of Circulating N-Acylethanolamine Levels with Clinical and Laboratory End Points in Hemodialysis Patients. Am J Nephrol 2021; 52:59-68. [PMID: 33601382 DOI: 10.1159/000513381] [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] [Received: 09/14/2020] [Accepted: 11/14/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND Patients with ESRD on maintenance hemodialysis (MHD) are particularly susceptible to dysregulation of energy metabolism, which may manifest as protein energy wasting and cachexia. In recent years, the endocannabinoid system has been shown to play an important role in energy metabolism with potential relevance in ESRD. N-acylethanolamines are a class of fatty acid amides which include the major endocannabinoid ligand, anandamide, and the endogenous peroxisome proliferator-activated receptor-α agonists, oleoylethanolamide (OEA) and palmitoylethanolamide (PEA). METHODS Serum concentrations of OEA and PEA were measured in MHD patients and their correlations with various clinical/laboratory indices were examined. Secondarily, we evaluated the association of circulating PEA and OEA levels with 12-month all-cause mortality. RESULTS Both serum OEA and PEA levels positively correlated with high-density lipoprotein-cholesterol levels and negatively correlated with body fat and body anthropometric measures. Serum OEA levels correlated positively with serum interleukin-6 (IL-6) (rho = 0.19; p = 0.004). Serum PEA and IL-6 showed a similar but nonsignificant trend (rho = 0.12; p = 0.07). Restricted cubic spline analyses showed that increasing serum OEA and PEA both trended toward higher mortality risk, and these associations were statistically significant for PEA (PEA ≥4.7 pmol/mL; reference: PEA <4.7 pmol/mL) after adjustments in a Cox model (hazard ratio 2.99; 95% confidence interval 1.04, 8.64). CONCLUSIONS In MHD patients, OEA and PEA are significantly correlated with variables related to lipid metabolism and body mass. Additionally, higher serum levels of PEA are associated with mortality risk. Future studies are needed to examine the potential mechanisms responsible for these findings and their clinical implications.
Collapse
Affiliation(s)
- Alex Y Pai
- Division of Nephrology, Hypertension and Kidney Transplantation, University of California Irvine School of Medicine, Irvine, California, USA
| | - Cachet Wenziger
- Division of Nephrology, Hypertension and Kidney Transplantation, University of California Irvine School of Medicine, Irvine, California, USA
| | - Elani Streja
- Division of Nephrology, Hypertension and Kidney Transplantation, University of California Irvine School of Medicine, Irvine, California, USA
- Tibor Rubin VA Medical Center, Long Beach, California, USA
| | - Donovan A Argueta
- Division of Biomedical Sciences, University of California Riverside School of Medicine, Riverside, California, USA
| | - Nicholas V DiPatrizio
- Division of Biomedical Sciences, University of California Riverside School of Medicine, Riverside, California, USA
| | - Connie M Rhee
- Division of Nephrology, Hypertension and Kidney Transplantation, University of California Irvine School of Medicine, Irvine, California, USA
| | - Nosratola D Vaziri
- Division of Nephrology, Hypertension and Kidney Transplantation, University of California Irvine School of Medicine, Irvine, California, USA
| | - Kamyar Kalantar-Zadeh
- Division of Nephrology, Hypertension and Kidney Transplantation, University of California Irvine School of Medicine, Irvine, California, USA
- Tibor Rubin VA Medical Center, Long Beach, California, USA
| | - Daniele Piomelli
- Anatomy and Neurobiology, University of California Irvine School of Medicine, Irvine, California, USA
| | - Hamid Moradi
- Division of Nephrology, Hypertension and Kidney Transplantation, University of California Irvine School of Medicine, Irvine, California, USA,
- Tibor Rubin VA Medical Center, Long Beach, California, USA,
| |
Collapse
|
7
|
[Blood lipid metabolic profile of overweight/obese boys aged 9-12 years]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2020. [PMID: 32800035 PMCID: PMC7441509 DOI: 10.7499/j.issn.1008-8830.2005077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
OBJECTIVE To study the features of blood lipid metabolic profile in overweight/obese boys aged 9-12 years and the possible mechanism of overweight/obesity in children. METHODS According to body mass index (BMI), 72 boys, aged 9-12 years, were divided into a control group with 42 boys and an overweight/obesity group with 30 boys. Fasting venous blood samples were collected early in the morning. BMI, waist-hip ratio, body composition, and blood lipids were measured. Ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry technique was used to analyze the serum lipid compounds. A statistical analysis and visualization of the data were performed. RESULTS Compared with the control group, the overweight/obesity group had significantly higher waist-hip ratio, body fat percentage, and triglyceride level (P<0.05) and a significantly lower level of high-density lipoprotein cholesterol (P<0.05). The metabolomic analysis identified 150 differentially expressed lipid compounds between the two groups, mainly glycerolipids (40.7%), glycerophospholipids (24.7%), fatty acyls (10.7%), and sphingolipids (7.3%). The levels of most of glycerolipids were significantly upregulated in the overweight/obesity group, while those of most of glycerophospholipids and sphingolipids were downregulated in this group. Key lipids with differential expression were enriched into two KEGG metabolic pathways, i.e., ether lipid metabolism pathway and terpenoid backbone biosynthesis pathway (P<0.05), and might further affected the biosynthesis and metabolism of downstream coenzyme Q and other terpenoids (P=0.06). CONCLUSIONS Disordered lipid metabolic profile is observed in overweight/obese boys aged 9-12 years, with increases in most glycerolipids and reductions in glycerophospholipids and sphingolipids. Overweight/obese boys may have disorders in ether lipid metabolism and biosynthesis of terpenoid and even coenzyme Q.
Collapse
|
8
|
Liang CY, Cao YP, Yan Y. [Blood lipid metabolic profile of overweight/obese boys aged 9-12 years]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2020; 22:874-881. [PMID: 32800035 PMCID: PMC7441509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 06/13/2020] [Indexed: 08/02/2024]
Abstract
OBJECTIVE To study the features of blood lipid metabolic profile in overweight/obese boys aged 9-12 years and the possible mechanism of overweight/obesity in children. METHODS According to body mass index (BMI), 72 boys, aged 9-12 years, were divided into a control group with 42 boys and an overweight/obesity group with 30 boys. Fasting venous blood samples were collected early in the morning. BMI, waist-hip ratio, body composition, and blood lipids were measured. Ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry technique was used to analyze the serum lipid compounds. A statistical analysis and visualization of the data were performed. RESULTS Compared with the control group, the overweight/obesity group had significantly higher waist-hip ratio, body fat percentage, and triglyceride level (P<0.05) and a significantly lower level of high-density lipoprotein cholesterol (P<0.05). The metabolomic analysis identified 150 differentially expressed lipid compounds between the two groups, mainly glycerolipids (40.7%), glycerophospholipids (24.7%), fatty acyls (10.7%), and sphingolipids (7.3%). The levels of most of glycerolipids were significantly upregulated in the overweight/obesity group, while those of most of glycerophospholipids and sphingolipids were downregulated in this group. Key lipids with differential expression were enriched into two KEGG metabolic pathways, i.e., ether lipid metabolism pathway and terpenoid backbone biosynthesis pathway (P<0.05), and might further affected the biosynthesis and metabolism of downstream coenzyme Q and other terpenoids (P=0.06). CONCLUSIONS Disordered lipid metabolic profile is observed in overweight/obese boys aged 9-12 years, with increases in most glycerolipids and reductions in glycerophospholipids and sphingolipids. Overweight/obese boys may have disorders in ether lipid metabolism and biosynthesis of terpenoid and even coenzyme Q.
Collapse
|
9
|
Moradi H, Park C, Streja E, Argueta DA, DiPatrizio NV, You AS, Rhee CM, Vaziri ND, Kalantar-Zadeh K, Piomelli D. Circulating Endocannabinoids and Mortality in Hemodialysis Patients. Am J Nephrol 2020; 51:86-95. [PMID: 31935741 DOI: 10.1159/000505444] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 12/16/2019] [Indexed: 01/30/2023]
Abstract
BACKGROUND Mortality in patients with end-stage renal disease (ESRD) on maintenance hemodialysis (MHD) remains exceptionally high. While traditional risk factors such as obesity are paradoxically associated with better survival, nontraditional risk factors including cachexia increase the likelihood of poor outcomes. There is accumulating evidence that the endocannabinoid (ECB) system plays a major role in energy preservation and storage, factors which can prevent the deleterious effects of cachexia. Hence, in this study, we evaluated the association of circulating ECB levels with mortality in MHD patients. METHODS Serum concentrations of anandamide (AEA) and 2-arachidonoyl-sn-glycerol (2-AG), major ECB ligands, were measured in MHD patients. Their correlation with various clinical/laboratory indices and association with 12-month all-cause mortality were examined. RESULTS Serum 2-AG levels positively correlated with body mass index, serum triglycerides and body anthropometric measures. Meanwhile, serum AEA levels correlated positively with serum interleukin-6, and negatively with serum very low-density lipoprotein levels. While increased serum 2-AG levels were associated with reduced risk of all-cause mortality (hazard ratio [HR] 0.52, 95% CI 0.28-0.98), there was no clear association between serum AEA levels and mortality (HR 0.91, 95% CI 0.48-1.72). CONCLUSIONS In MHD patients, the circulating levels of ECB ligand, 2-AG, may play an important role in determining body mass and risk of mortality. These observations were unique to 2-AG as similar findings were not obtained with serum AEA. Future studies need to investigate the mechanisms responsible for these associations and examine the modulation of the ECB system as a potential target for therapy in ESRD.
Collapse
Affiliation(s)
- Hamid Moradi
- Division of Nephrology, Hypertension and Kidney Transplantation, University of California Irvine School of Medicine, Irvine, California, USA,
- Tibor Rubin VA Medical Center, Nephrology Section, Long Beach, California, USA,
| | - Christina Park
- Division of Nephrology, Hypertension and Kidney Transplantation, University of California Irvine School of Medicine, Irvine, California, USA
| | - Elani Streja
- Division of Nephrology, Hypertension and Kidney Transplantation, University of California Irvine School of Medicine, Irvine, California, USA
- Tibor Rubin VA Medical Center, Nephrology Section, Long Beach, California, USA
| | - Donovan A Argueta
- Division of Biomedical Sciences, University of California Riverside School of Medicine, Riverside, California, USA
| | - Nicholas V DiPatrizio
- Division of Biomedical Sciences, University of California Riverside School of Medicine, Riverside, California, USA
| | - Amy S You
- Division of Nephrology, Hypertension and Kidney Transplantation, University of California Irvine School of Medicine, Irvine, California, USA
| | - Connie M Rhee
- Division of Nephrology, Hypertension and Kidney Transplantation, University of California Irvine School of Medicine, Irvine, California, USA
| | - Nosratola D Vaziri
- Division of Nephrology, Hypertension and Kidney Transplantation, University of California Irvine School of Medicine, Irvine, California, USA
| | - Kamyar Kalantar-Zadeh
- Division of Nephrology, Hypertension and Kidney Transplantation, University of California Irvine School of Medicine, Irvine, California, USA
- Tibor Rubin VA Medical Center, Nephrology Section, Long Beach, California, USA
| | - Daniele Piomelli
- Anatomy and Neurobiology, University of California Irvine School of Medicine, Irvine, California, USA
| |
Collapse
|