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Bourgeois BL, Lin HY, Yeh AY, Levitt DE, Primeaux SD, Ferguson TF, Molina PE, Simon L. Unique circulating microRNA associations with dysglycemia in people living with HIV and alcohol use. Physiol Genomics 2022; 54:36-44. [PMID: 34859690 PMCID: PMC8891241 DOI: 10.1152/physiolgenomics.00085.2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
People living with HIV (PLWH) have increased prevalence of comorbid conditions including insulin resistance and at-risk alcohol use. Circulating microRNAs (miRs) may serve as minimally invasive indicators of pathophysiological states. We aimed to identify whether alcohol modulates circulating miR associations with measures of glucose/insulin dynamics in PLWH. PLWH (n = 96; 69.8% males) enrolled in the Alcohol & Metabolic Comorbidities in PLWH: Evidence-Driven Interventions (ALIVE-Ex) study were stratified into negative phosphatidylethanol (PEth < 8 ng/mL, n = 42) and positive PEth (PEth ≥ 8 ng/mL, n = 54) groups. An oral glucose tolerance test (OGTT) was administered, and total RNA was isolated from fasting plasma to determine absolute miR expression. Circulating miRs were selected based on their role in skeletal muscle (miR-133a and miR-206), pancreatic β-cell (miR-375), liver (miR-20a), and adipose tissue (miR-let-7b, miR-146a, and miR-221) function. Correlation and multiple regression analyses between miR expression and adiponectin, 2 h glucose, insulin, and C-peptide values were performed adjusting for body mass index (BMI) category, age, sex, and viral load. miR-133a was negatively associated with adiponectin (P = 0.002) in the negative PEth group, and miR-20a was positively associated with 2 h glucose (P = 0.013) in the positive PEth group. Regression analyses combining miRs demonstrated that miR-133a (P < 0.001) and miR-221 (P = 0.010) together predicted adiponectin in the negative PEth group. miR-20a (P < 0.001) and miR-375 (P = 0.002) together predicted 2 h glucose in the positive PEth group. Our results indicate that associations between miRs and measures of glucose/insulin dynamics differed between PEth groups, suggesting that the pathophysiological mechanisms contributing to altered glucose homeostasis in PLWH are potentially modulated by alcohol use.
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Affiliation(s)
- Brianna L. Bourgeois
- 1Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana,2Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Hui-Yi Lin
- 2Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana,3School of Public Health, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Alice Y. Yeh
- 1Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Danielle E. Levitt
- 1Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana,2Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Stefany D. Primeaux
- 1Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana,4Joint Diabetes, Endocrinology & Metabolism Program, Pennington Biomedical Research Center, Louisiana State University, Baton Rouge, Louisiana
| | - Tekeda F. Ferguson
- 1Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana,2Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana,5Department of Epidemiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Patricia E. Molina
- 1Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana,2Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - Liz Simon
- 1Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana,2Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, Louisiana
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Cucinello-Ragland JA, Mitchell-Cleveland R, Bradley Trimble W, Urbina AP, Yeh AY, Edwards KN, Molina PE, Simon Peter L, Edwards S. Alcohol amplifies cingulate cortex signaling and facilitates immobilization-induced hyperalgesia in female rats. Neurosci Lett 2021; 761:136119. [PMID: 34280506 PMCID: PMC8387454 DOI: 10.1016/j.neulet.2021.136119] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 07/14/2021] [Indexed: 12/28/2022]
Abstract
Complex Regional Pain Syndrome (CRPS) is a musculoskeletal pain condition that often develops after limb injury and/or immobilization. Although the exact mechanisms underlying CRPS are unknown, the syndrome is associated with central and autonomic nervous system dysregulation and peripheral hyperalgesia symptoms. These symptoms also manifest in alcoholic neuropathy, suggesting that the two conditions may be pathophysiologically accretive. Interestingly, people assigned female at birth (AFAB) appear to be more sensitive to both CRPS and alcoholic neuropathy. To better understand the biobehavioral mechanisms underlying these conditions, we investigated a model of combined CRPS and alcoholic neuropathy in female rats. Animals were pair-fed either a Lieber-DeCarli alcohol liquid diet or a control diet for ten weeks. CRPS was modeled via unilateral hind limb cast immobilization for seven days, allowing for the other limb to serve as a within-subject control for hyperalgesia measures. To investigate the role of circulating ovarian hormones on pain-related behaviors, half of the animals underwent ovariectomy (OVX). Using the von Frey procedure to record mechanical paw withdrawal thresholds, we found that cast immobilization and chronic alcohol drinking separately and additively produced mechanical hyperalgesia observed 3 days after cast removal. We then examined neuroadaptations in AMPA GluR1 and NMDA NR1 glutamate channel subunits, extracellular signal-regulated kinase (ERK), and cAMP response element-binding protein (CREB) in bilateral motor and cingulate cortex across all groups. Consistent with increased pain-related behavior, chronic alcohol drinking increased GluR1, NR1, ERK, and CREB phosphorylation in the cingulate cortex. OVX did not alter any of the observed effects. Our results suggest accretive relationships between CRPS and alcoholic neuropathy symptoms and point to novel therapeutic targets for these conditions.
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Affiliation(s)
- Jessica A Cucinello-Ragland
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States; Alcohol & Drug Abuse Center of Excellence, LSU Health-New Orleans, United States
| | | | - W Bradley Trimble
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States
| | - Amy P Urbina
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States
| | - Alice Y Yeh
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States
| | - Kimberly N Edwards
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States; Alcohol & Drug Abuse Center of Excellence, LSU Health-New Orleans, United States
| | - Patricia E Molina
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States; Alcohol & Drug Abuse Center of Excellence, LSU Health-New Orleans, United States; Comprehensive Alcohol-HIV/AIDS Research Center, LSU Health-New Orleans, United States
| | - Liz Simon Peter
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States; Alcohol & Drug Abuse Center of Excellence, LSU Health-New Orleans, United States; Comprehensive Alcohol-HIV/AIDS Research Center, LSU Health-New Orleans, United States
| | - Scott Edwards
- Department of Physiology and School of Medicine, LSU Health-New Orleans, United States; Alcohol & Drug Abuse Center of Excellence, LSU Health-New Orleans, United States; Neuroscience Center of Excellence, LSU Health-New Orleans, United States; Comprehensive Alcohol-HIV/AIDS Research Center, LSU Health-New Orleans, United States.
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Levitt DE, Yeh AY, Prendergast MJ, Budnar, Jr. RG, Adler KA, Cook G, Molina PE, Simon L. Chronic Alcohol Dysregulates Skeletal Muscle Myogenic Gene Expression after Hind Limb Immobilization in Female Rats. Biomolecules 2020; 10:E441. [PMID: 32178412 PMCID: PMC7175129 DOI: 10.3390/biom10030441] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/07/2020] [Accepted: 03/10/2020] [Indexed: 12/20/2022] Open
Abstract
Alcohol use and aging are risk factors for falls requiring immobilization and leading to skeletal muscle atrophy. Skeletal muscle regeneration is integral to post-immobilization recovery. This study aimed to elucidate the effects of alcohol and ovarian hormone loss on the expression of genes implicated in muscle regeneration. Three-month-old female rats received an ovariectomy or a sham surgery, consumed an alcohol-containing or control diet for 10 weeks, were subjected to unilateral hind limb immobilization for seven days, and finally were allowed a three (3d)- or 14 (14d)-day recovery. Immobilization decreased the quadriceps weight at 3d and 14d, and alcohol decreased the quadriceps weight at 14d in the nonimmobilized hind limb (NI). At 3d, alcohol decreased gene expression of myoblast determination protein (MyoD) in the immobilized hind limb (IMM) and myocyte enhancer factor (Mef)2C and tumor necrosis factor (TNF)α in NI, and ovariectomy increased MyoD and decreased TNFα expression in NI. At 14d, alcohol increased the gene expression of Mef2C, MyoD, TNFα, and transforming growth factor (TFG)β in IMM and decreased monocyte chemoattractant protein (MCP)1 expression in NI; ovariectomy increased TNFα expression in NI, and alcohol and ovariectomy together increased Mef2C expression in NI. Despite increased TGFβ expression, there was no concomitant alcohol-mediated increase in collagen in IMM at 14d. Overall, these data indicate that alcohol dysregulated the post-immobilization alteration in the expression of genes implicated in regeneration. Whether alcohol-mediated molecular changes correspond with post-immobilization functional alterations remains to be determined.
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Affiliation(s)
| | | | | | | | | | | | | | - Liz Simon
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA; (D.E.L.); (A.Y.Y.); (M.J.P.); (R.G.B.J.); (K.A.A.); (G.C.); (P.E.M.)
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Btaiche IF, Yeh AY, Wu IJ, Khalidi N. Neurologic Dysfunction and Pancytopenia Secondary to Acquired Copper Deficiency Following Duodenal Switch. Nutr Clin Pract 2011; 26:583-92. [DOI: 10.1177/0884533611416127] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Affiliation(s)
- Imad F. Btaiche
- Department of Pharmacy Services, University of Michigan Hospitals and Health Centers, Ann Arbor, Michigan
- University of Michigan College of Pharmacy, Ann Arbor, Michigan
| | - Alice Y. Yeh
- Department of Pharmacy Services, University of Michigan Hospitals and Health Centers, Ann Arbor, Michigan
| | | | - Nabil Khalidi
- University of Michigan College of Pharmacy, Ann Arbor, Michigan
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Lewis MI, Fournier M, Yeh AY, Micevych PE, Sieck GC. Alterations in diaphragm contractility after nandrolone administration: an analysis of potential mechanisms. J Appl Physiol (1985) 1999; 86:985-92. [PMID: 10066714 DOI: 10.1152/jappl.1999.86.3.985] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to evaluate the potential mechanisms underlying the improved contractility of the diaphragm (Dia) in adult intact male hamsters after nandrolone (Nan) administration, given subcutaneously over 4 wk via a controlled-release capsule (initial dose: 4.5 mg. kg-1. day-1; with weight gain, final dose: 2.7 mg. kg-1. day-1). Control (Ctl) animals received blank capsules. Isometric contractile properties of the Dia were determined in vitro after 4 wk. The maximum velocity of unloaded shortening (Vo) was determined in vitro by means of the slack test. Dia fibers were classified histochemically on the basis of myofibrillar ATPase staining and fiber cross-sectional area (CSA), and the relative interstitial space was quantitated. Ca2+-activated myosin ATPase activity was determined by quantitative histochemistry in individual diaphragm fibers. Myosin heavy chain (MHC) isoforms were identified electrophoretically, and their proportions were determined by using scanning densitometry. Peak twitch and tetanic forces, as well as Vo, were significantly greater in Nan animals compared with Ctl. The proportion of type IIa Dia fibers was significantly increased in Nan animals. Nan increased the CSA of all fiber types (26-47%), whereas the relative interstitial space decreased. The relative contribution of fiber types to total costal Dia area was preserved between the groups. Proportions of MHC isoforms were similar between the groups. There was a tendency for increased expression of MHC2B with Nan. Ca2+-activated myosin ATPase activity was increased 35-39% in all fiber types in Nan animals. We conclude that, after Nan administration, the increase in Dia specific force results from the relatively greater Dia CSA occupied by hypertrophied muscle fibers, whereas the increased ATPase activity promotes a higher rate of cross-bridge turnover and thus increased Vo. We speculate that Nan in supraphysiological doses have the potential to offset or ameliorate conditions associated with enhanced proteolysis and disordered protein turnover.
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Affiliation(s)
- M I Lewis
- Division of Pulmonary/Critical Care Medicine, The Burns and Allen Research Institute, Cedars-Sinai Medical Center, University of California Los Angeles School of Medicine, Los Angeles 90048, USA
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Ross DJ, Yeh AY, Nathan SD, Toyoda M, Galera O, Marchevsky A, Kass RM, Koerner SK, Jordan SC. Differential soluble interleukin-2R levels in bilateral bronchoalveolar lavage after single lung transplantation. J Heart Lung Transplant 1994; 13:972-9. [PMID: 7865531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Preliminary reports suggest that measurement of the soluble 55 kd subunit of the interleukin-2 receptor may facilitate the diagnosis of allograft rejection in solid organ transplants. Levels of soluble interleukin-2 receptor in serum or plasma have previously lacked sufficient sensitivity and specificity for the diagnosis of acute allograft rejection. Because single lung transplantation is preferentially performed for nonseptic end-stage pulmonary and cardiopulmonary maladies, we questioned whether the pattern of soluble interleukin-2 receptor recovery in bronchoalveolar lavage fluid obtained from both the native and transplanted lungs may enhance correct diagnosis. Fifty-three consecutive fiberoptic bronchoscopic procedures were performed with bilateral bronchoalveolar lavage fluid. Transbronchoscopic biopsies were histologically classified by the International Society for Heart Transplantation Working Formulation for Standardized Nomenclature. "Soluble interleukin-2 receptor index" was calculated as the quotient of soluble interleukin-2 receptor (in units per milliliter) by enzyme-linked immunosorbent assay, divided by protein (in milligrams per milliliter) to correct for differences in bronchoalveolar lavage fluid techniques and cellularity. Soluble interleukin-2 receptor indexes were significantly increased in the allograft bronchoalveolar lavage fluid during histologic grade A (acute rejection) versus normal transbronchoscopic biopsy specimens (3395 +/- 1298 U/mg versus 76 +/- 21 U/mg) associated with an increased transplanted/native lung ratio (69.9 +/- 46 versus 2 +/- 1 [mean +/- standard error of the mean]) (one-way analysis of variance, p < 0.01).(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- D J Ross
- Division of Pulmonary Medicine, Cedars-Sinai Medical Center, Los Angeles, Calif
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