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Bradley CE, Fletcher E, Wilkinson T, Ring A, Ferrer L, Miserlis D, Pacher P, Koutakis P. Mitochondrial fatty acid beta-oxidation: a possible therapeutic target for skeletal muscle lipotoxicity in peripheral artery disease myopathy. EXCLI J 2024; 23:523-533. [PMID: 38741727 PMCID: PMC11089102 DOI: 10.17179/excli2024-7004] [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] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 04/10/2024] [Indexed: 05/16/2024]
Abstract
Peripheral artery disease (PAD) is an atherosclerotic disease impacting over 200 million individuals and the prevalence increases with age. PAD occurs when plaque builds up within the peripheral arteries, leading to reduced blood flow and oxygen supply to the outer extremities. Individuals who experience PAD suffer from ischemia, which is typically accompanied by significant damage to skeletal muscles. Additionally, this tissue damage affects mitochondria, causing them to become dysregulated and dysfunctional, resulting in decreased metabolic rates. As there is no known cure for PAD, researchers are exploring potential therapeutic targets by examining coexisting cardiovascular conditions and metabolic risk factors, such as the aging process. Among these comorbidities, type-two diabetes mellitus and obesity are particularly common in PAD cases. These conditions, along with aging itself, are associated with an elevated accumulation of ectopic lipids within skeletal muscles, similar to what is observed in PAD. Researchers have attempted to reduce excess lipid accumulation by increasing the rate of fatty acid beta oxidation. Manipulating acetyl coenzyme A carboxylase 2, a key regulatory protein of fatty acid beta oxidation, has been the primary focus of such research. When acetyl coenzyme A carboxylase 2 is inhibited, it interrupts the conversion of acetyl-CoA into malonyl-CoA, resulting in an increase in the rate of fatty acid beta oxidation. By utilizing samples from PAD patients and applying the pharmacological strategies developed for acetyl coenzyme A carboxylase 2 in diabetes and obesity to PAD, a potential new therapeutic avenue may emerge, offering hope for improved quality of life for individuals suffering from PAD.
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Affiliation(s)
- Cassandra E. Bradley
- Department of Biology, Baylor University, One Bear Place #97388, Waco, TX 76798, USA
| | - Emma Fletcher
- Department of Biology, Baylor University, One Bear Place #97388, Waco, TX 76798, USA
| | - Trevor Wilkinson
- Department of Biology, Baylor University, One Bear Place #97388, Waco, TX 76798, USA
| | - Andrew Ring
- Department of Biology, Baylor University, One Bear Place #97388, Waco, TX 76798, USA
| | - Lucas Ferrer
- Department of Surgery, University of Texas at Austin Dell Medical School, 1601 Trinity St, Room 6708A, Austin, TX 78712, USA
| | - Dimitrios Miserlis
- Department of Surgery, University of Texas at Austin Dell Medical School, 1601 Trinity St, Room 6708A, Austin, TX 78712, USA
| | - Pal Pacher
- National Institutes of Health, Bethesda, MD, USA
| | - Panagiotis Koutakis
- Department of Biology, Baylor University, One Bear Place #97388, Waco, TX 76798, USA
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Koutakis P, Hernandez H, Miserlis D, Thompson JR, Papoutsi E, Mietus CJ, Haynatzki G, Kim JK, Casale GP, Pipinos II. Oxidative damage in the gastrocnemius predicts long-term survival in patients with peripheral artery disease. NPJ Aging 2024; 10:21. [PMID: 38580664 PMCID: PMC10997596 DOI: 10.1038/s41514-024-00147-3] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 03/20/2024] [Indexed: 04/07/2024]
Abstract
Patients with peripheral artery disease (PAD) have increased mortality rates and a myopathy in their affected legs which is characterized by increased oxidative damage, reduced antioxidant enzymatic activity and defective mitochondrial bioenergetics. This study evaluated the hypothesis that increased levels of oxidative damage in gastrocnemius biopsies from patients with PAD predict long-term mortality rates. Oxidative damage was quantified as carbonyl adducts in myofibers of the gastrocnemius of PAD patients. The oxidative stress data were grouped into tertiles and the 5-year, all-cause mortality for each tertile was determined by Kaplan-Meier curves and compared by the Modified Peto test. A Cox-regression model was used to control the effects of clinical characteristics. Results were adjusted for age, sex, race, body mass index, ankle-brachial index, smoking, physical activity, and comorbidities. Of the 240 study participants, 99 died during a mean follow up of 37.8 months. Patients in the highest tertile of oxidative damage demonstrated the highest 5-year mortality rate. The mortality hazard ratios (HR) from the Cox analysis were statistically significant for oxidative damage (lowest vs middle tertile; HR = 6.33; p = 0.0001 and lowest vs highest; HR = 8.37; p < 0.0001). Survival analysis of a contemporaneous population of PAD patients identifies abundance of carbonyl adducts in myofibers of their gastrocnemius as a predictor of mortality rate independently of ankle-brachial index, disease stage and other clinical and myopathy-related covariates.
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Affiliation(s)
- Panagiotis Koutakis
- Department of Biology, Baylor University, Waco, TX, USA.
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA.
| | - Hernan Hernandez
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA
| | - Dimitrios Miserlis
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Surgery and Perioperative Care, University of Texas at Austin, Austin, TX, USA
| | - Jonathan R Thompson
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA
| | - Evlampia Papoutsi
- Department of Biology, Baylor University, Waco, TX, USA
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA
| | - Constance J Mietus
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Neurological Surgery, University of Massachusetts Medical School, Worcester, MA, USA
| | - Gleb Haynatzki
- Department of Biostatistics, University of Nebraska Medical Center, Omaha, NE, USA
| | - Julian K Kim
- Department of Biology, Baylor University, Waco, TX, USA
| | - George P Casale
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA
| | - Iraklis I Pipinos
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA.
- Department of Surgery and VA Research Service, VA Nebraska-Western Iowa Health Care System, Omaha, NE, USA.
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Rahman H, Leutzinger T, Hassan M, Schieber M, Koutakis P, Fuglestad MA, DeSpiegelaere H, Longo GM, Malcolm P, Johanning JM, Casale GP, Pipinos II, Myers SA. Peripheral artery disease causes consistent gait irregularities regardless of the location of leg claudication pain. Ann Phys Rehabil Med 2024; 67:101793. [PMID: 38118246 PMCID: PMC11009086 DOI: 10.1016/j.rehab.2023.101793] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 07/27/2023] [Accepted: 08/01/2023] [Indexed: 12/22/2023]
Abstract
BACKGROUND The most common symptom of peripheral artery disease (PAD) is intermittent claudication that involves the calf, thigh, and/or buttock muscles. How the specific location of this leg pain is related to altered gait, however, is unknown. OBJECTIVES We hypothesized that because the location of claudication symptoms uniquely affects different leg muscle groups in people with PAD, this would produce distinctive walking patterns. METHODS A total of 105 participants with PAD and 35 age-matched older volunteers without PAD (CTRL) were recruited. Participants completed walking impairment questionnaires (WIQ), Gardner-Skinner progressive treadmill tests, the six-minute walk test, and we performed an advanced evaluation of the biomechanics of their overground walking. Participants with PAD were categorized into 4 groups according to their stated pain location(s): calf only (C, n = 43); thigh and calf (TC, n = 18); buttock and calf (BC, n = 15); or buttock, thigh, and calf (BTC, n = 29). Outcomes were compared between CTRL, C, TC, BC and BTC groups using a one-way ANOVA with post-hoc comparisons to identify and assess statistically significant differences. RESULTS There were no significant differences between CTRL, C, TC, BC and BTC groups in distances walked or walking speed when either pain-free or experiencing claudication pain. Each participant with PAD had significantly dysfunctional biomechanical gait parameters, even when pain-free, when compared to CTRL (pain-free) walking data. During pain-free walking, out of the 18 gait parameters evaluated, we only identified significant differences in hip power generation during push-off (in C and TC groups) and in knee power absorption during weight acceptance (in TC and BC groups). There were no between-group differences in gait parameters while people with PAD were walking with claudication pain. CONCLUSIONS Our data demonstrate that PAD affects the ischemic lower extremities in a diffuse manner irrespective of the location of claudication symptoms. DATABASE REGISTRATION ClinicalTrials.gov NCT01970332.
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Affiliation(s)
- Hafizur Rahman
- School of Podiatric Medicine, University of Texas Rio Grande Valley, Harlingen, TX, USA; Department of Biomechanics, University of Nebraska at Omaha, Omaha, NE, USA; Department of Surgery and Research Service, Nebraska-Western Iowa Veterans Affairs Medical Center, Omaha, NE, USA
| | - Todd Leutzinger
- Department of Biomechanics, University of Nebraska at Omaha, Omaha, NE, USA
| | - Mahdi Hassan
- Department of Biomechanics, University of Nebraska at Omaha, Omaha, NE, USA; Department of Surgery and Research Service, Nebraska-Western Iowa Veterans Affairs Medical Center, Omaha, NE, USA
| | - Molly Schieber
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA
| | | | - Matthew A Fuglestad
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA
| | - Holly DeSpiegelaere
- Department of Surgery and Research Service, Nebraska-Western Iowa Veterans Affairs Medical Center, Omaha, NE, USA
| | - G Matthew Longo
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA
| | - Philippe Malcolm
- Department of Biomechanics, University of Nebraska at Omaha, Omaha, NE, USA
| | - Jason M Johanning
- Department of Surgery and Research Service, Nebraska-Western Iowa Veterans Affairs Medical Center, Omaha, NE, USA; Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA
| | - George P Casale
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA
| | - Iraklis I Pipinos
- Department of Surgery and Research Service, Nebraska-Western Iowa Veterans Affairs Medical Center, Omaha, NE, USA; Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA
| | - Sara A Myers
- Department of Biomechanics, University of Nebraska at Omaha, Omaha, NE, USA; Department of Surgery and Research Service, Nebraska-Western Iowa Veterans Affairs Medical Center, Omaha, NE, USA.
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Tice AL, Gordon BS, Fletcher E, McNeill AG, Laskin GR, Laudato JA, Rossetti ML, Koutakis P, Steiner JL. Effects of chronic alcohol intoxication on aerobic exercise-induced adaptations in female mice. J Appl Physiol (1985) 2024; 136:721-738. [PMID: 38357729 DOI: 10.1152/japplphysiol.00599.2023] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 02/08/2024] [Indexed: 02/16/2024] Open
Abstract
Chronic alcohol intoxication decreases muscle strength/function and causes mitochondrial dysfunction. Aerobic exercise training improves mitochondrial oxidative capacity and increases muscle mass and strength. Presently, the impact of chronic alcohol on aerobic exercise-induced adaptations was investigated. Female C57BL/6Hsd mice were randomly assigned to one of four groups: control sedentary (CON SED; n = 26), alcohol sedentary (ETOH SED; n = 27), control exercise (CON EX; n = 28), and alcohol exercise (ETOH EX; n = 25). Exercise mice had running wheel access for 2 h a day, 7 days a week. All mice were fed either control or an alcohol-containing liquid diet. Grip strength testing and EchoMRI were performed before and after the interventions. After 6 wk, hindlimb muscles were collected for molecular analyses. A subset of mice performed a treadmill run to fatigue (RTF), then abstained from alcohol for 2 wk and repeated the RTF. Alcohol decreased lean mass and forelimb grip strength compared with control-fed mice. Alcohol blunted the exercise-induced increase in muscle mass (plantaris and soleus), type IIa fiber percentage in the plantaris, and run time to fatigue. Mitochondrial markers (Citrate synthase activity and Complex I-IV, COXIV and Cytochrome C protein expression) were increased with exercise regardless of ETOH in the gastrocnemius but not tibialis anterior muscle. Two weeks of alcohol abstinence improved RTF time in ETOH EX but not in ETOH SED. These data suggest that alcohol impairs some exercise-induced adaptations in skeletal muscle, but not all were negatively affected, indicating that exercise may be a beneficial behavior even while consuming alcohol.NEW & NOTEWORTHY Alcohol consumption during an aerobic exercise training period prevented training-induced increases in run to fatigue time and grip strength. Cessation of alcohol allowed for recovery of endurance performance within 2 wk. The worsened exercise performance after alcohol was unrelated to impairments in markers of mitochondrial health. Therefore, some adaptations to exercise training are impaired with alcohol use (endurance performance, muscle growth, and strength), while others remain mostly unaffected (mitochondrial health).
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Affiliation(s)
- Abigail L Tice
- Department of Health, Nutrition and Food Sciences, Florida State University, Tallahassee, Florida, United States
| | - Bradley S Gordon
- Department of Health, Nutrition and Food Sciences, Florida State University, Tallahassee, Florida, United States
- Institute of Sports Sciences and Medicine, Florida State University, Tallahassee, Florida, United States
| | - Emma Fletcher
- Department of Biology, Baylor University, Waco, Texas, United States
| | - Addison G McNeill
- Department of Health, Nutrition and Food Sciences, Florida State University, Tallahassee, Florida, United States
| | - Grant R Laskin
- Department of Health, Nutrition and Food Sciences, Florida State University, Tallahassee, Florida, United States
| | - Joseph A Laudato
- Department of Health, Nutrition and Food Sciences, Florida State University, Tallahassee, Florida, United States
| | - Michael L Rossetti
- Department of Health, Nutrition and Food Sciences, Florida State University, Tallahassee, Florida, United States
| | | | - Jennifer L Steiner
- Department of Health, Nutrition and Food Sciences, Florida State University, Tallahassee, Florida, United States
- Institute of Sports Sciences and Medicine, Florida State University, Tallahassee, Florida, United States
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Chapman-Lopez TJ, Funderburk LK, Heileson JL, Wilburn DT, Koutakis P, Gallucci AR, Forsse JS. Effects of L-Leucine Supplementation and Resistance Training on Adipokine Markers in Untrained Perimenopausal and Postmenopausal Women. J Strength Cond Res 2024; 38:526-532. [PMID: 38088883 DOI: 10.1519/jsc.0000000000004661] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
ABSTRACT Chapman-Lopez, TJ, Funderburk, LK, Heileson, JL, Wilburn, DT, Koutakis, P, Gallucci, AR, and Forsse, JS. Effects of L-leucine supplementation and resistance training on adipokine markers in untrained perimenopausal and postmenopausal women. J Strength Cond Res 38(3): 526-532, 2024-This study examined the effects of supplementing 5 g of leucine compared with a placebo during a 10-week resistance training program on body composition parameters and adipokine concentrations in untrained, perimenopausal and postmenopausal women. Thirty-five women were randomly assigned to 2 groups-leucine (LEU, n = 17) and placebo (PLC, n = 18)-in a double-blind, placebo-controlled trial. Each group consumed the supplement or placebo every day and completed a resistance training program for 10 weeks. Using 3-day food records, a diet was assessed before the intervention and after its cessation. Body composition was assessed preintervention and postintervention using dual-energy x-ray absorptiometry. Moreover, the concentrations of adipokines, such as adiponectin, visfatin, leptin, and monocyte chemoattractant protein-1 (MCP-1), were assessed preintervention and postintervention. Both groups showed an increase in visceral adipose tissue (VAT) area ( p = 0.030) and fat-free mass (FFM; p = 0.023). There were significant group differences in concentrations of visfatin ( p = 0.020) and leptin ( p = 0.038) between the PLC and LEU groups. Visfatin displayed higher concentrations in the PLC group and leptin displayed higher concentrations in the LEU group. In addition, there were significant decreases in adiponectin concentrations for both groups (LEU: 652 ± 513 to 292 ± 447 pg·ml -1 ; PLC: 584 ± 572 to 245 ± 356 pg·ml -1 , p = 0.002) and MCP-1 only decreased in the PLC group (253 ± 119 to 206 ± 106 pg·ml -1 , p = 0.004). There were significant decreases in adiponectin concentrations in both groups and a decrease in MCP-1 concentrations in the PLC group. These decreases may be due to both adipokines possible relationship with VAT area. However, it is not known whether leucine has underlying properties that hinder changes in MCP-1 concentrations.
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Affiliation(s)
- Tomas J Chapman-Lopez
- Integrated Laboratory of Exercise, Nutrition, and Renal Vascular Research, Department of Health Human Performance and Recreation, Baylor University, Waco, Texas
| | - LesLee K Funderburk
- Integrated Laboratory of Exercise, Nutrition, and Renal Vascular Research, Department of Health Human Performance and Recreation, Baylor University, Waco, Texas
- Human Sciences and Design, Baylor University, Waco, Texas
| | - Jeffery L Heileson
- Integrated Laboratory of Exercise, Nutrition, and Renal Vascular Research, Department of Health Human Performance and Recreation, Baylor University, Waco, Texas
- Nutrition Services Division, Walter Reed National Military Medical Center, Bethesda, Maryland; and
| | - Dylan T Wilburn
- Integrated Laboratory of Exercise, Nutrition, and Renal Vascular Research, Department of Health Human Performance and Recreation, Baylor University, Waco, Texas
| | | | - Andrew R Gallucci
- Integrated Laboratory of Exercise, Nutrition, and Renal Vascular Research, Department of Health Human Performance and Recreation, Baylor University, Waco, Texas
| | - Jeffrey S Forsse
- Integrated Laboratory of Exercise, Nutrition, and Renal Vascular Research, Department of Health Human Performance and Recreation, Baylor University, Waco, Texas
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Forsse JS, Richardson KA, Torres R, Lowry C, Taylor JK, Beeson CL, Ward J, Dhillon A, Niceler B, Ismaeel A, Koutakis P. Exploring an Unknown Corner of a Well-Known Topic: HIIE Influence on Renal Health and Filtration in Healthy Individuals Free of Cardiometabolic Diseases. Sports (Basel) 2023; 11:210. [PMID: 37999427 PMCID: PMC10675315 DOI: 10.3390/sports11110210] [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] [Received: 08/27/2023] [Revised: 10/18/2023] [Accepted: 10/26/2023] [Indexed: 11/25/2023] Open
Abstract
Aerobic exercise, specifically high-intensity interval exercise (HIIE), and its effects on renal health and filtration (RHF) are not well understood. Several studies support incorporating contemporary biomarkers serum cystatin C (CyC) and urine epidermal growth factor (uEGF) to combat the volatility of serum creatinine (sCr). Using these biomarkers, we examined the acute influences HIIE has on RHF to determine if there is a ceiling effect in healthy populations. The purpose was to determine the influence of an acute bout of HIIE on RHF. Thirty-six participants (n = 22 males; n = 14 females; age 37.6 ± 12.4 years.; BF% 19.2 ± 7.1%; VO2max 41.8 + 7.4 mL/kg/min) completed 30 min of HIIE on a treadmill (80% and 40% of VO2reserve in 3:2 min ratio). Blood and urine samples were obtained under standardized conditions before, 1 h, and 24 h post-exercise. CyC, sCR, uEGF, urine creatinine (uCr), uCr/uEGF ratio, and multiple estimates of glomerular filtration rate (eGFR) Modification of Diet in Renal Disease (MDRD) and CKD-EPI equations were used. The analysis employed paired sample t-tests and repeated measures ANOVAs. CyC, uEGF, uCr, and uCr/uEGF ratio concentrations were not altered between timepoints. sCr increased 1 h post-exercise (p > 0.002) but not at 24 h post-exercise. eGFR decreased in the MDRD and CKD-EPI equations at 1 h (p > 0.012) with no changes at 24 h post-exercise. CyC and sCr/CyC demonstrated no significant changes. CyC and uEGF are not altered by acute HIIE. The results demonstrate a potential ceiling effect in contemporary and traditional biomarkers of RHF, indicating improvements in RHF may be isolated to populations with reduced kidney function.
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Affiliation(s)
- Jeffrey S. Forsse
- Integrated Laboratory of Exercise, Nutrition, and Renal Vascular Research, Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX 76706, USA; (K.A.R.); (R.T.); (C.L.); (C.L.B.); (J.W.); (A.D.); (B.N.)
| | - Kathleen A. Richardson
- Integrated Laboratory of Exercise, Nutrition, and Renal Vascular Research, Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX 76706, USA; (K.A.R.); (R.T.); (C.L.); (C.L.B.); (J.W.); (A.D.); (B.N.)
| | - Ricardo Torres
- Integrated Laboratory of Exercise, Nutrition, and Renal Vascular Research, Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX 76706, USA; (K.A.R.); (R.T.); (C.L.); (C.L.B.); (J.W.); (A.D.); (B.N.)
| | - Catherine Lowry
- Integrated Laboratory of Exercise, Nutrition, and Renal Vascular Research, Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX 76706, USA; (K.A.R.); (R.T.); (C.L.); (C.L.B.); (J.W.); (A.D.); (B.N.)
- Department of Health and Exercise Science, Colorado State University, Fort Collins, CO 80011, USA
| | - James Kyle Taylor
- Medical & Clinical Laboratory Sciences, Auburn University—Montgomery, Montgomery, AL 36124, USA;
| | - Cassidy L. Beeson
- Integrated Laboratory of Exercise, Nutrition, and Renal Vascular Research, Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX 76706, USA; (K.A.R.); (R.T.); (C.L.); (C.L.B.); (J.W.); (A.D.); (B.N.)
| | - Jacob Ward
- Integrated Laboratory of Exercise, Nutrition, and Renal Vascular Research, Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX 76706, USA; (K.A.R.); (R.T.); (C.L.); (C.L.B.); (J.W.); (A.D.); (B.N.)
- Southern Illinois University Medical School, Lindegren Hall, 600 Agriculture Dr #132, Carbondale, IL 62901, USA
| | - Anurag Dhillon
- Integrated Laboratory of Exercise, Nutrition, and Renal Vascular Research, Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX 76706, USA; (K.A.R.); (R.T.); (C.L.); (C.L.B.); (J.W.); (A.D.); (B.N.)
- Health Science Center, San Antonio Joe R and Teresa Lozano Long School of Medicine, The University of Texas, 7703 Floyd Curl Drive, San Antonio, TX 78229, USA
| | - Brock Niceler
- Integrated Laboratory of Exercise, Nutrition, and Renal Vascular Research, Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX 76706, USA; (K.A.R.); (R.T.); (C.L.); (C.L.B.); (J.W.); (A.D.); (B.N.)
- Waco Family Medicine, Waco, TX 76707, USA
| | - Ahmed Ismaeel
- Department of Physiology, University of Kentucky, 780 Rose Street, MS508, Lexington, KY 40536, USA;
- Clinical Muscle Biology Lab, Baylor University, Waco, TX 76706, USA;
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Cullen AE, Centner AM, Deitado R, Ismaeel A, Koutakis P, Muller-Delp J, Salazar G. AKT Mediates Adiponectin-Dependent Regulation of VSMC Phenotype. Cells 2023; 12:2493. [PMID: 37887338 PMCID: PMC10605922 DOI: 10.3390/cells12202493] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 10/11/2023] [Accepted: 10/17/2023] [Indexed: 10/28/2023] Open
Abstract
Adiponectin (adipoq), the most abundant hormone in circulation, has many beneficial effects on the cardiovascular system, in part by preserving the contractile phenotype of vascular smooth muscle cells (VSMCs). However, the lack of adiponectin or its receptor and treatment with recombinant adiponectin have shown contradictory effects on plaque in mice. RNA sequence of Adipoq+/+ and adipoq-/- VSMCs from male aortas identified a critical role for adiponectin in AKT signaling, the extracellular matrix (ECM), and TGF-β signaling. Upregulation of AKT activity mediated proliferation and migration of adipoq-/- cells. Activation of AMPK with metformin or AdipoRon reduced AKT-dependent proliferation and migration of adipoq-/- cells but did not improve the expression of contractile genes. Adiponectin deficiency impaired oxidative phosphorylation (OXPHOS), increased expression of glycolytic enzymes, and elevated mitochondrial reactive oxygen species (ROS) (superoxide, and hydrogen peroxide). Anti-atherogenic mechanisms targeted the ECM in adipoq-/- cells, downregulating MMP2 and 9 and upregulating decorin (DCN) and elastin (ELN). In vivo, the main sex differences in protein expression in aortas involved a more robust upregulation of MMP3 in females than males. Females also showed a reduction in DCN, which was not affected in males. Our study uncovered the AKT/MAPK/TGF-β network as a central regulator of VSMC phenotype.
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Affiliation(s)
- Abigail E. Cullen
- Department of Nutrition and Integrative Physiology, Florida State University, Tallahassee, FL 32306, USA; (A.E.C.); (A.M.C.); (R.D.)
- Department of Human Physiology, University of Oregon, Eugene, OR 97403, USA
| | - Ann M. Centner
- Department of Nutrition and Integrative Physiology, Florida State University, Tallahassee, FL 32306, USA; (A.E.C.); (A.M.C.); (R.D.)
| | - Riley Deitado
- Department of Nutrition and Integrative Physiology, Florida State University, Tallahassee, FL 32306, USA; (A.E.C.); (A.M.C.); (R.D.)
| | - Ahmed Ismaeel
- Department of Physiology, University of Kentucky, Lexington, KY 40536, USA;
| | | | - Judy Muller-Delp
- Department of Biological Sciences, Florida State University, Tallahassee, FL 32306, USA;
| | - Gloria Salazar
- Department of Nutrition and Integrative Physiology, Florida State University, Tallahassee, FL 32306, USA; (A.E.C.); (A.M.C.); (R.D.)
- Center for Advancing Exercise and Nutrition Research on Aging (CAENRA), Florida State University, Tallahassee, FL 32306, USA
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8
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Fletcher E, Miserlis D, Sorokolet K, Wilburn D, Bradley C, Papoutsi E, Wilkinson T, Ring A, Ferrer L, Haynatzki G, Smith RS, Bohannon WT, Koutakis P. Diet-induced obesity augments ischemic myopathy and functional decline in a murine model of peripheral artery disease. Transl Res 2023; 260:17-31. [PMID: 37220835 DOI: 10.1016/j.trsl.2023.05.002] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/10/2023] [Accepted: 05/15/2023] [Indexed: 05/25/2023]
Abstract
Peripheral artery disease (PAD) causes an ischemic myopathy contributing to patient disability and mortality. Most preclinical models to date use young, healthy rodents with limited translatability to human disease. Although PAD incidence increases with age, and obesity is a common comorbidity, the pathophysiologic association between these risk factors and PAD myopathy is unknown. Using our murine model of PAD, we sought to elucidate the combined effect of age, diet-induced obesity and chronic hindlimb ischemia (HLI) on (1) mobility, (2) muscle contractility, and markers of muscle (3) mitochondrial content and function, (4) oxidative stress and inflammation, (5) proteolysis, and (6) cytoskeletal damage and fibrosis. Following 16-weeks of high-fat, high-sucrose, or low-fat, low-sucrose feeding, HLI was induced in 18-month-old C57BL/6J mice via the surgical ligation of the left femoral artery at 2 locations. Animals were euthanized 4-weeks post-ligation. Results indicate mice with and without obesity shared certain myopathic changes in response to chronic HLI, including impaired muscle contractility, altered mitochondrial electron transport chain complex content and function, and compromised antioxidant defense mechanisms. However, the extent of mitochondrial dysfunction and oxidative stress was significantly greater in obese ischemic muscle compared to non-obese ischemic muscle. Moreover, functional impediments, such as delayed post-surgical recovery of limb function and reduced 6-minute walking distance, as well as accelerated intramuscular protein breakdown, inflammation, cytoskeletal damage, and fibrosis were only evident in mice with obesity. As these features are consistent with human PAD myopathy, our model could be a valuable tool to test new therapeutics.
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Affiliation(s)
- Emma Fletcher
- Department of Biology, Baylor University, Waco, Texas
| | - Dimitrios Miserlis
- Department of Surgery, University of Texas at Austin Dell Medical School, Austin, Texas
| | | | - Dylan Wilburn
- Department of Health, Human Performance and Recreation, Baylor University, Waco, Texas
| | | | | | | | - Andrew Ring
- Department of Biology, Baylor University, Waco, Texas
| | - Lucas Ferrer
- Department of Surgery, University of Texas at Austin Dell Medical School, Austin, Texas
| | - Gleb Haynatzki
- Department of Biostatistics, University of Nebraska Medical Center, Omaha, Nebraska
| | - Robert S Smith
- Department of Surgery, Baylor Scott & White Medical Center, Temple, Texas
| | - William T Bohannon
- Department of Surgery, Baylor Scott & White Medical Center, Temple, Texas
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9
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Tsai S, Liu Y, Hoang L, Vu M, Lu H, Ramanan B, Fernandez Vazquez D, Rosol Z, Sayfo S, Alaiti MA, Koutakis P, Brilakis ES, Shishehbor MH, Banerjee S. Comparative Outcomes of Interventions for Femoropopliteal Chronic Total Occlusion Versus Non-Chronic Total Occlusion Lesions From the Multicenter XLPAD Registry. J Am Heart Assoc 2023:e028425. [PMID: 37318023 DOI: 10.1161/jaha.122.028425] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Background Endovascular intervention of femoropopliteal chronic total occlusions (CTOs) is technically more complex. However, there is lack of comparative analysis between CTO and non-CTO femoropopliteal interventions. Methods and Results We report procedural details and outcomes of patients treated for femoropopliteal CTO and non-CTO lesions in the XLPAD (Excellence in Peripheral Artery Disease) registry (NCT01904851) between 2006 and 2019. Primary outcomes were procedural success and 1-year major adverse limb events, a composite of all-cause death, target limb revascularization, or major amputation. Analysis included 2895 patients (CTO: n=1516 patients; non-CTO: n=1379 patients) with 3658 lesions (CTO: n=1998 lesions; non-CTO: n=1660 lesions). Conventional balloon angioplasty (20.86% versus 33.48%, P<0.001) or drug-coated balloon angioplasty (1.26% versus 2.93%, P<0.001) were more frequent in the non-CTO group, whereas bare-metal stents (28.09% versus 20.22%, P<0.001) or covered stents (4.08% versus 1.83%, P<0.001) were more frequent in the CTO group. Debulking procedures were more commonly performed in the non-CTO group (41.44% versus 53.13%, P<0.001), despite a similar degree of calcification between the 2 groups. Procedural success was higher in the non-CTO group (90.12% versus 96.79%, P<0.001). Procedural complications were higher in the CTO group (7.21% versus 4.66%, P=0.002), mainly due to excess distal embolization (1.5% versus 0.6%, P=0.015). Adjusted 1-year major adverse limb events were higher in the CTO group (22.47% versus 18.77%, P=0.019), driven mainly by target limb revascularization (19.00% versus 15.34%, P=0.013). Conclusions Procedural success is lower for endovascular treatment of femoropopliteal CTO compared with non-CTO lesions. CTO lesions are associated with higher rates of periprocedural complications and reinterventions after 1 year.
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Affiliation(s)
- Shirling Tsai
- North Texas Veterans Affairs Health Care Systems Dallas TX USA
- University of Texas Southwestern Medical Center Dallas TX USA
| | - Yulun Liu
- University of Texas Southwestern Medical Center Dallas TX USA
| | - Lawrence Hoang
- North Texas Veterans Affairs Health Care Systems Dallas TX USA
- Methodist Health System Dallas TX USA
| | - Michael Vu
- North Texas Veterans Affairs Health Care Systems Dallas TX USA
- Methodist Health System Dallas TX USA
| | - Hua Lu
- North Texas Veterans Affairs Health Care Systems Dallas TX USA
- University of Texas Southwestern Medical Center Dallas TX USA
| | - Bala Ramanan
- North Texas Veterans Affairs Health Care Systems Dallas TX USA
- University of Texas Southwestern Medical Center Dallas TX USA
| | | | | | - Sameh Sayfo
- Baylor Scott and White Hospital Plano TX USA
| | | | | | | | - Mehdi H Shishehbor
- University Hospital Harrington Heart and Vascular Institute Cleveland OH USA
| | - Subhash Banerjee
- North Texas Veterans Affairs Health Care Systems Dallas TX USA
- Baylor Scott and White Hospital Dallas TX USA
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10
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Scrivner O, Fletcher E, Hoffmann C, Li F, Wilkinson T, Miserlis D, Smith RS, Bohannon WT, Sutliff R, Jordan WD, Koutakis P, Brewster LP. Myoglobinemia, Peripheral Arterial Disease, and Patient Mortality. J Am Coll Surg 2023; 236:588-598. [PMID: 36656266 PMCID: PMC10010700 DOI: 10.1097/xcs.0000000000000554] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 01/20/2023]
Abstract
BACKGROUND Peripheral arterial disease (PAD) causes leg muscle damage due to inadequate perfusion and increases cardiovascular events and mortality 2- to 3-fold. It is unclear if PAD is a biomarker for high-risk cardiovascular disease or if skeletal muscle injury harms arterial health. The objective of this work is to test if serum myoglobin levels (myoglobinemia) are a marker of PAD, and if so, whether myoglobin impairs vascular health. STUDY DESIGN Patient blood samples were collected from PAD and control (no PAD) patients and interrogated for myoglobin concentrations and nitric oxide bioavailability. Patient mortality over time was captured from the medical record. Myoglobin activity was tested on endothelial cells and arterial function. RESULTS Myoglobin is a biomarker for symptomatic PAD and was inversely related to nitric oxide bioavailability; 200 ng/mL myoglobin in vitro increased endothelial cell permeability in vitro and decreased nitrate bioavailability. Ex vivo, 100 ng/mL myoglobin increased vascular tone in naive murine aortas approximately 1.5 times, impairing absolute vessel relaxation. In vivo, we demonstrated that myoglobinemia caused impaired flow-mediated dilation in a porcine model. Patients presenting with myoglobin levels of 100 ng/mL or greater had significantly more deaths than those with myoglobin levels of less than 100 ng/mL. CONCLUSIONS Using a combination of patient data, in vitro, ex vivo, and in vivo testing, we found that myoglobin is a biomarker for symptomatic PAD and a potent regulator of arterial health that can increase vascular tone, increase vascular permeability, and cause endothelial dysfunction, all of which may contribute to the vulnerability of PAD patients to cardiovascular events and death.
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Affiliation(s)
- Ottis Scrivner
- From the Emory University Department of Surgery, Atlanta, GA (Scrivner, Hoffmann, Li, Jordan, Brewster)
| | - Emma Fletcher
- Baylor University, Department of Biology, Waco, TX (Fletcher, Wilkinson, Koutakis)
| | - Carson Hoffmann
- From the Emory University Department of Surgery, Atlanta, GA (Scrivner, Hoffmann, Li, Jordan, Brewster)
- Atlanta VA Medical Center, Atlanta, GA (Hoffmann, Brewster)
| | - Feifei Li
- From the Emory University Department of Surgery, Atlanta, GA (Scrivner, Hoffmann, Li, Jordan, Brewster)
| | - Trevor Wilkinson
- Baylor University, Department of Biology, Waco, TX (Fletcher, Wilkinson, Koutakis)
| | - Dimitrios Miserlis
- University of Texas Health Science Center San Antonio, Department of Surgery, San Antonio, TX (Miserlis)
| | - Robert S Smith
- Baylor Scott and White Medical Center, Department of Surgery, Temple, TX (Smith, Bohannon)
| | - William T Bohannon
- Baylor Scott and White Medical Center, Department of Surgery, Temple, TX (Smith, Bohannon)
| | - Roy Sutliff
- National Institutes of Health, National Heart, Lung, and Blood Institute, Lung Biology and Disease Branch, Atlanta, GA (Sutliff)
| | - William D Jordan
- From the Emory University Department of Surgery, Atlanta, GA (Scrivner, Hoffmann, Li, Jordan, Brewster)
| | - Panagiotis Koutakis
- Baylor University, Department of Biology, Waco, TX (Fletcher, Wilkinson, Koutakis)
| | - Luke P Brewster
- From the Emory University Department of Surgery, Atlanta, GA (Scrivner, Hoffmann, Li, Jordan, Brewster)
- Atlanta VA Medical Center, Atlanta, GA (Hoffmann, Brewster)
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11
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Wilburn D, Fletcher E, Ismaeel A, Miserlis D, Zechmann B, Koutakis P. Chemical and cryo-collection of muscle samples for transmission electron microscopy using Methacarn and dimethyl sulfoxide ✰. Ultramicroscopy 2022; 241:113600. [PMID: 35988477 PMCID: PMC9511158 DOI: 10.1016/j.ultramic.2022.113600] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 07/08/2022] [Accepted: 08/10/2022] [Indexed: 01/24/2023]
Abstract
Muscle samples are commonly chemically fixed or frozen immediately upon collection for biochemical and morphological analysis. Certain fixatives such as glutaraldehyde and osmium tetroxide are widely used for transmission electron microscopy (TEM) and lead to adequate preservation of muscle ultrastructure, but do not preserve the molecular features of samples. Methacarn is suggested to be a preferable chemical fixative for light microscopy because it maintains immunohistological features of samples. However, the efficacy of methacarn to preserve ultrastructural features as a primary chemical fixative for TEM is currently unclear. Additionally, cryo-preservation of samples for TEM analysis involves freezing processes such as plunge freezing, slam freezing, or high pressure freezing. High pressure freezing is the considered the gold standard but requires costly equipment and may not be a viable option for many labs collecting tissue samples from remote locations. Dimethyl sulfoxide (DMSO) is a commonly used cryoprotectant that may allow for better structural preservation of samples by impairing ice damage that occurs during plunge/snap freezing. We aimed to assess the effectiveness of methacarn as a primary chemical fixative and determine the effect of pre-coating samples with DMSO before plunge/snap freezing tissues to be prepared for TEM. The micrographs of the methcarn-fixed samples indicate a loss of Z-disk integrity, intermyofibrillar space, mitochondria structure, and lipids. Ultimately, methacarn is not a viable primary fixative for tissue sample preparation for TEM. Similarly, liquid nitrogen freezing of samples wrapped in aluminum foil produced non-uniform Z-disk alignments that appeared smeared with swollen mitochondria. DMSO coating before freezing appears to lessen the alterations to contractile and mitochondrial morphological structures. DMSO appears to be useful for preserving the ultrastructure of sarcomeres if samples are covered before freezing.
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Affiliation(s)
- Dylan Wilburn
- Department of Health, Human Performance, and Recreation, Baylor University, 254-710-2911, B.207 Baylor Science Building, One Bear Place #97388, 76798-7388, Waco, TX 76706, USA
| | - Emma Fletcher
- Department of Biology, Baylor University, Waco, TX 76706, USA
| | - Ahmed Ismaeel
- Department of Biology, Baylor University, Waco, TX 76706, USA
| | - Dimitrios Miserlis
- Department of Surgery, University of Texas Health Science Center San Antonio, San Antonio, TX, USA
| | - Bernd Zechmann
- Department of Biology, Baylor University, Waco, TX 76706, USA; Center for Microscopy and Imaging, Baylor University, Waco, Texas 76706, USA
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12
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Chapman-Lopez T, Wilburn D, Fletcher E, Adair K, Ismaeel A, Heileson J, Gallucci A, Funderburk L, Koutakis P, Forsse JS. The influence of resistance training on adipokines in post-menopausal women: A brief review. Sports Med Health Sci 2022; 4:219-224. [PMID: 36600971 PMCID: PMC9806702 DOI: 10.1016/j.smhs.2022.09.001] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/23/2022] [Accepted: 09/14/2022] [Indexed: 01/07/2023] Open
Abstract
The onset of menopause elicits changes in body composition that negatively influence adipokine levels. Consequently, various health risk factors (e.g., cardiovascular disease, osteoporosis, physical inactivity, obesity, arterial hypertension, hypercholesterolemia, sarcopenia) are influenced by adipokines due to changes in body composition after menopause. Thus, improvements in body composition are considered the primary influencer of adipokines. Though several therapeutic interventions (e.g., medication, diet, meditation, exercise) are employed to target changes in body composition, resistance training appears to be more effective in positively improving body composition through changes in lean-muscle mass/fat-mass ratio. However, due to the lack of research, very little is known about adipokines' anti/inflammatory response in postmenopausal women after completing resistance training. Most resistance training studies in postmenopausal women have focused on leptin, adiponectin, and resistin, with limited research assessing other adipokines that are important in metabolic regulation and inflammatory processes. Additionally, the consistency of resistance training protocols as an intervention is not standardized or fully recognized. Therefore, the focus of this review is to establish a more comprehensive understanding of the benefits of resistance training on influencing adipokine levels based on changes to total body composition in postmenopausal women.
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Affiliation(s)
- Tomas Chapman-Lopez
- Department of Health Human Performance and Recreation, Baylor University, Waco, TX, 76706, USA
| | - Dylan Wilburn
- Department of Health Human Performance and Recreation, Baylor University, Waco, TX, 76706, USA
- Clinical Muscle Biology Lab, Biology Department, Baylor University, Waco, TX, 76798, USA
| | - Emma Fletcher
- Clinical Muscle Biology Lab, Biology Department, Baylor University, Waco, TX, 76798, USA
| | - Kathleen Adair
- Department of Health Human Performance and Recreation, Baylor University, Waco, TX, 76706, USA
| | - Ahmed Ismaeel
- Department of Physiology, University of Kentucky, 780 Rose St., MS508, Lexington, KY, 40536, USA
| | - Jeffery Heileson
- Department of Health Human Performance and Recreation, Baylor University, Waco, TX, 76706, USA
| | - Andrew Gallucci
- Department of Health Human Performance and Recreation, Baylor University, Waco, TX, 76706, USA
| | | | - Panagiotis Koutakis
- Clinical Muscle Biology Lab, Biology Department, Baylor University, Waco, TX, 76798, USA
| | - Jeffrey S. Forsse
- Department of Health Human Performance and Recreation, Baylor University, Waco, TX, 76706, USA
- Corresponding author. College of Health & Human Sciences, Baylor University, One Bear Place #97313, 76798-7313, Waco, TX, USA.
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13
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Wilburn D, Ismaeel A, Fletcher E, Torres R, Adair K, Lowry C, Beeson C, Forsse JS, Koutakis P. Using Peripheral Blood Mononuclear Cells To Assess Acute Effects Of High-intensity Interval Exercise On Mitochondrial Function. Med Sci Sports Exerc 2022. [DOI: 10.1249/01.mss.0000878424.72870.35] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Lowry C, Richardson KA, Torres R, Ishmaeel A, Severance K, Beeson C, Taylor K, Qian L, Dugan K, Koutakis P, Forsse JS. The Effect Of High-intensity Interval Exercise On Renal Health And Filtration In Healthy Individuals Free Of Cardiometabolic Diseases. Med Sci Sports Exerc 2022. [DOI: 10.1249/01.mss.0000882940.59993.0c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Holmes MJ, Koutakis P, Morgan GB, Ismaeel A. Gastrocnemius Muscle Hemoglobin Oxygen Saturation (StO2) Kinetics In Healthy Individuals Across The Lifespan. Med Sci Sports Exerc 2022. [DOI: 10.1249/01.mss.0000877540.35749.41] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Ismaeel A, Hoffman C, Fletcher E, Papoutsi E, Li F, Teichmann MS, McLaughlin DK, Call JA, Brewster LP, Koutakis P. Effects Of Exercise Training On Mitochondrial Function In A Large-animal Model Of Peripheral Artery Disease. Med Sci Sports Exerc 2022. [DOI: 10.1249/01.mss.0000879816.86456.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Torres R, Lowry C, Adair K, Ismaeel A, Beeson C, Koutakis P, Forsse J. The Influence Of A Single Acute Bout Of High-intensity Interval Exercise On Cardiac Autonomic Modulation In Younger And Older Individuals With Good Cardiorespiratory Fitness. Med Sci Sports Exerc 2022. [DOI: 10.1249/01.mss.0000882852.74903.29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Fletcher E, Ismaeel A, Miserlis D, Wechsler M, Papoutsi E, Koutakis P. The Effect Of Revascularization On Muscle Mitochondrial Function And Mir-210 Expression In Peripheral Artery Disease. Med Sci Sports Exerc 2022. [DOI: 10.1249/01.mss.0000880008.17405.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Napierkowski K, Richardson KA, Torres R, Ismaeel A, Lowry C, Beeson C, Koutakis P, Forsse JS. A Comparative Analysis On Aerobically- And Anaerobically-trained Individuals’ Skeletal Muscle Oxygen Saturation. Med Sci Sports Exerc 2022. [DOI: 10.1249/01.mss.0000877468.53565.0e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Ismaeel A, Fletcher E, Miserlis D, Wechsler M, Papoutsi E, Haynatzki G, Smith RS, Bohannon WT, Koutakis P. Skeletal muscle MiR-210 expression is associated with mitochondrial function in peripheral artery disease patients. Transl Res 2022; 246:66-77. [PMID: 35288364 PMCID: PMC9197925 DOI: 10.1016/j.trsl.2022.03.003] [Citation(s) in RCA: 4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/10/2022] [Accepted: 03/07/2022] [Indexed: 11/19/2022]
Abstract
Previous studies have demonstrated that circulating microRNA (miR)-210 levels are elevated in peripheral artery disease (PAD) patients. MiR-210 is known to be a negative regulator of mitochondrial respiration; however, the relationship between miR-210 and mitochondrial function has yet to be studied in PAD. We aimed to compare skeletal muscle miR-210 expression of PAD patients to non-PAD controls (CON) and to examine the relationship between miR-210 expression and mitochondrial function. Skeletal muscle biopsies from CON (n = 20), intermittent claudication (IC) patients (n = 20), and critical limb ischemia (CLI) patients (n = 20) were analyzed by high-resolution respirometry to measure mitochondrial respiration of permeabilized fibers. Samples were also analyzed for miR-210 expression by real-time PCR. MiR-210 expression was significantly elevated in IC and CLI muscle compared to CON (P = 0.008 and P < 0.001, respectively). Mitochondrial respiration of electron transport chain (ETC) Complexes II (P = 0.001) and IV (P < 0.001) were significantly reduced in IC patients. Further, CLI patients demonstrated significant reductions in respiration during Complexes I (state 2: P = 0.04, state 3: P = 0.003), combined I and II (P < 0.001), II (P < 0.001), and IV (P < 0.001). The expression of the miR-210 targets, cytochrome c oxidase assembly factor heme A: farnesyltransferase (COX10), and iron-sulfur cluster assembly enzyme (ISCU) were down-regulated in PAD muscle. MiR-210 may play a role in the cellular adaptation to hypoxia and may be involved in the metabolic myopathy associated with PAD.
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Affiliation(s)
- Ahmed Ismaeel
- Department of Biology, Baylor University, Waco, Texas
| | - Emma Fletcher
- Department of Biology, Baylor University, Waco, Texas
| | - Dimitrios Miserlis
- Department of Surgery, University of Texas Health Science Center San Antonio, San Antonio, Texas
| | - Marissa Wechsler
- Department of Biomedical Engineering and Chemical Engineering, University of Texas at San Antonio, San Antonio, Texas
| | | | - Gleb Haynatzki
- Department of Biostatistics, University of Nebraska Medical Center, Omaha, Nebraska
| | - Robert S Smith
- Department of Surgery, Baylor Scott & White Medical Center, Temple, Texas
| | - William T Bohannon
- Department of Surgery, Baylor Scott & White Medical Center, Temple, Texas
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21
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Leutzinger TJ, Koutakis P, Fuglestad MA, Rahman H, Despiegelaere H, Hassan M, Schieber M, Johanning JM, Stergiou N, Longo GM, Casale GP, Myers SA, Pipinos II. Peripheral artery disease affects the function of the legs of claudicating patients in a diffuse manner irrespective of the segment of the arterial tree primarily involved. PLoS One 2022; 17:e0264598. [PMID: 35830421 PMCID: PMC9278728 DOI: 10.1371/journal.pone.0264598] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 06/27/2022] [Indexed: 11/18/2022] Open
Abstract
Different levels of arterial occlusive disease (aortoiliac, femoropopliteal, multi-level disease) can produce claudication symptoms in different leg muscle groups (buttocks, thighs, calves) in patients with peripheral artery disease (PAD). We tested the hypothesis that different locations of occlusive disease uniquely affect the muscles of PAD legs and produce distinctive patterns in the way claudicating patients walk. Ninety-seven PAD patients and 35 healthy controls were recruited. PAD patients were categorized to aortoiliac, femoropopliteal and multi-level disease groups using computerized tomographic angiography. Subjects performed walking trials both pain-free and during claudication pain and joint kinematics, kinetics, and spatiotemporal parameters were calculated to evaluate the net contribution of the calf, thigh and buttock muscles. PAD patients with occlusive disease affecting different segments of the arterial tree (aortoiliac, femoropopliteal, multi-level disease) presented with symptoms affecting different muscle groups of the lower extremity (calves, thighs and buttocks alone or in combination). However, no significant biomechanical differences were found between PAD groups during the pain-free conditions with minimal differences between PAD groups in the claudicating state. All statistical differences in the pain-free condition occurred between healthy controls and one or more PAD groups. A discriminant analysis function was able to adequately predict if a subject was a control with over 70% accuracy, but the function was unable to differentiate between PAD groups. In-depth gait analyses of claudicating PAD patients indicate that different locations of arterial disease produce claudication symptoms that affect different muscle groups across the lower extremity but impact the function of the leg muscles in a diffuse manner generating similar walking impairments.
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Affiliation(s)
- Todd J. Leutzinger
- Department of Biomechanics and Center for Research in Human Movement Variability, University of Nebraska at Omaha, Omaha, Nebraska, United States of America
| | - Panagiotis Koutakis
- Department of Biology, Baylor University, Wako, Texas, United States of America
| | - Matthew A. Fuglestad
- Department of Surgery, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Hafizur Rahman
- Department of Biomechanics and Center for Research in Human Movement Variability, University of Nebraska at Omaha, Omaha, Nebraska, United States of America
- Department of Surgery and Research Service, Nebraska and Western Iowa Veterans Affairs Medical Center, Omaha, Nebraska, United States of America
| | - Holly Despiegelaere
- Department of Surgery and Research Service, Nebraska and Western Iowa Veterans Affairs Medical Center, Omaha, Nebraska, United States of America
| | - Mahdi Hassan
- Department of Biomechanics and Center for Research in Human Movement Variability, University of Nebraska at Omaha, Omaha, Nebraska, United States of America
- Department of Surgery and Research Service, Nebraska and Western Iowa Veterans Affairs Medical Center, Omaha, Nebraska, United States of America
| | - Molly Schieber
- Department of Surgery, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Jason M. Johanning
- Department of Surgery, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
- Department of Surgery and Research Service, Nebraska and Western Iowa Veterans Affairs Medical Center, Omaha, Nebraska, United States of America
| | - Nick Stergiou
- Department of Biomechanics and Center for Research in Human Movement Variability, University of Nebraska at Omaha, Omaha, Nebraska, United States of America
- Department of Environmental Agricultural and Occupational Health, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - G. Matthew Longo
- Department of Surgery, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - George P. Casale
- Department of Surgery, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
| | - Sara A. Myers
- Department of Biomechanics and Center for Research in Human Movement Variability, University of Nebraska at Omaha, Omaha, Nebraska, United States of America
- Department of Surgery and Research Service, Nebraska and Western Iowa Veterans Affairs Medical Center, Omaha, Nebraska, United States of America
- * E-mail: (SAM); (IIP)
| | - Iraklis I. Pipinos
- Department of Surgery, University of Nebraska Medical Center, Omaha, Nebraska, United States of America
- Department of Surgery and Research Service, Nebraska and Western Iowa Veterans Affairs Medical Center, Omaha, Nebraska, United States of America
- * E-mail: (SAM); (IIP)
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22
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Koutakis P, Ismaeel A, Fletcher E, Papoutsi E, Smith R, Bohannon W, Miserlis D. Heavy Alcohol Use Worsens Peripheral Artery Disease-Associated Myopathy. JVS Vasc Sci 2022. [DOI: 10.1016/j.jvssci.2022.05.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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23
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Ring A, Ismaeel A, Fletcher E, Papoutsi E, Miserlis D, Koutakis P. Transcriptomic Analysis of Peripheral Artery Disease Patient Derived Myotubes Reveals Broad Gene Expression Changes and Alternative Splicing. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.l7591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | | | - Dimitrios Miserlis
- SurgeryUniversity of Texas Health Science Center San AntonioSan AntonioTX
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24
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Heileson JL, Papadakis Z, Ismaeel A, Richardson KA, Torres R, Funderburk L, Gallucci A, Koutakis P, Forsse JS. The Benefits of Utilizing Total Body Composition as a Predictor of Cardiorespiratory Fitness Based on Age: A Pilot Study. Int J Environ Res Public Health 2022; 19:5758. [PMID: 35565152 PMCID: PMC9103835 DOI: 10.3390/ijerph19095758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/27/2022] [Accepted: 05/05/2022] [Indexed: 02/04/2023]
Abstract
Maximal oxygen consumption (VO2max) has been associated with body fat percentage (%BF) or fat free mass. However, most analyses do not consider total body composition (TBC) as defined by %BF, fat free mass index (FFMI—a height-adjusted measure of muscle mass), visceral adipose tissue, and bone mineral content (BMC). The aim of this study was to determine if TBC predicts cardiorespiratory fitness in healthy adults and if a relationship exists in young and older adults. Sixty healthy individuals (age group 1 (AG1, ≤35 years), n = 35; age group 2 (AG2, >35 years), n = 25) were screened in a cross-sectional study and retrospectively examined. All participants completed a full body DEXA scan and a standardized multistage treadmill test to determine VO2max. A multiple linear regression analysis was performed to examine the relationship between TBC and VO2max. The multiple regression model showed an overall significant effect for TBC (p < 0.001, R2 = 0.282). When analyzed by age group, the regression model of TBC was not significant in young adults (AG1, p = 0.319, R2 = 0.141), but significant in older adults (AG2, p < 0.001, R2 = 0.683). Significant predictors of VO2max in the older cohort were %BF (β = −0.748, p = 0.001) and BMC (β = 0.014, p = 0.002). Total body composition predicted VO2max in a small cohort of healthy adults. This study highlights the importance of TBC for cardiovascular health, especially in mid-to later-life individuals.
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Affiliation(s)
- Jeffery L. Heileson
- Department of Health Human Performance and Recreation, Baylor University, Waco, TX 76706, USA; (J.L.H.); (K.A.R.); (R.T.); (A.G.)
| | - Zacharias Papadakis
- Department of Sport and Exercise Sciences, Barry University, Miami Shores, FL 33161, USA;
| | - Ahmed Ismaeel
- Clinical Muscle Biology Laboratory, Biology Department, Baylor University, Waco, TX 76798, USA;
- Department of Physiology, University of Kentucky, 780 Rose St., MS508, Lexington, KY 40536, USA
| | - Kathleen A. Richardson
- Department of Health Human Performance and Recreation, Baylor University, Waco, TX 76706, USA; (J.L.H.); (K.A.R.); (R.T.); (A.G.)
| | - Ricardo Torres
- Department of Health Human Performance and Recreation, Baylor University, Waco, TX 76706, USA; (J.L.H.); (K.A.R.); (R.T.); (A.G.)
| | | | - Andrew Gallucci
- Department of Health Human Performance and Recreation, Baylor University, Waco, TX 76706, USA; (J.L.H.); (K.A.R.); (R.T.); (A.G.)
| | - Panagiotis Koutakis
- Clinical Muscle Biology Laboratory, Biology Department, Baylor University, Waco, TX 76798, USA;
| | - Jeffrey S. Forsse
- Department of Health Human Performance and Recreation, Baylor University, Waco, TX 76706, USA; (J.L.H.); (K.A.R.); (R.T.); (A.G.)
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Koutakis P, Ismaeel A, Fletcher E, Papoutsi E, Smith R, Bohannon W, Miserlis D. Abstract 294: Heavy Alcohol Use Worsens Peripheral Artery Disease-Associated Myopathy. Arterioscler Thromb Vasc Biol 2022. [DOI: 10.1161/atvb.42.suppl_1.294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
Heavy alcohol use can induce skeletal muscle dysfunction referred to as alcoholic myopathy. Likewise, peripheral artery disease (PAD) is characterized by an acquired skeletal muscle metabolic myopathy in ischemic muscles of the lower extremity. Although epidemiological studies have shown that heavy alcohol consumption is associated with a greater risk of PAD, data are lacking on the contribution of alcohol-related myopathy on PAD-associated skeletal muscle pathology. We compared myofiber morphometrics, mitochondrial respiration, and oxidative stress measures in gastrocnemius biopsies from PAD patients with heavy alcohol use (>7 or >14 drinks per week, for females and males, respectively) (n=13) to PAD patients (n=13) and non-PAD controls (n=17) consuming moderate to low/no alcohol. Myofiber area and diameter were lower in heavy-drinking PAD patients compared to low/moderate drinkers (p=0.03 and p=0.04, respectively) and non-PAD controls (p=0.02 and p<0.001, respectively). Myofiber roundness was significantly higher in heavy-drinking PAD patients compared to low/moderate drinkers (p=0.04) and non-PAD controls (p<0.001). Although there were no significant differences between PAD groups in mitochondrial respiration, PAD patients with heavy alcohol consumption tended to have lower respiration for Complex I (p=0.14), Complex II (p=0.10), and Complex IV (p=0.16) compared to PAD patients without heavy alcohol use. Both PAD groups had significantly reduced respiration of all Complexes compared to non-PAD controls (p<0.05). These data suggest that alcohol abuse may accentuate skeletal muscle pathology in PAD patients.
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Holmes M, Koutakis P, Ismaeel A. Aging alters gastrocnemius muscle hemoglobin oxygen saturation (StO 2) characteristics in healthy individuals. Eur J Appl Physiol 2022; 122:1509-1520. [PMID: 35419666 DOI: 10.1007/s00421-022-04944-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 10/25/2021] [Accepted: 03/28/2022] [Indexed: 12/25/2022]
Abstract
PURPOSE Functional limitations during exercise from alterations in the balance of oxygen supply and demand-as reported by lower tissue oxygen saturation and longer recovery time-are well documented in clinical populations. We aimed to assess changes in skeletal muscle hemoglobin oxygen saturation (StO2) characteristics during exercise as a result of aging in otherwise healthy individuals. METHODS We recruited healthy male and female participants (n = 101) from three age ranges-young (18-39 years), middle age (40-65 years), and older (> 65 years)-to complete exercise tests commonly used in clinical populations. Using near-infrared spectroscopy (NIRS) we assessed StO2 in the medial gastrocnemius during the Gardner Treadmill Protocol and 6 min walk test (6MWT). RESULTS Minimum StO2 (%) during the treadmill test was significantly lower for both middle-age (36.1 ± 20.6) and older (27.3 ± 19.4) participants compared to young (46.8 ± 14.8) (p < 0.05 and p < 0.01 respectively), and recovery time (minutes) was significantly prolonged (young = 0.22 ± 0.34; middle age = 0.66 ± 0.52; older = 1.04 ± 1.00) (p < 0.001 for both middle age and older compared to young). Similar results were shown during the 6MWT, as minimum StO2 (%) was lower in middle-age (41.7 ± 17.2) and older (40.0 ± 25.9) participants compared to young (53.6 ± 14.5) (p < 0.05), and recovery times (minutes) were prolonged (young: 0.11 ± 0.17; middle age: 0.46 ± 0.42; older: 0.93 ± 0.43) (p < 0.001 for both middle age and older compared to young). Simple linear regression analyses demonstrated that age predicted treadmill recovery and 6MWT recovery. CONCLUSION Our study provides evidence that aging, even in otherwise healthy individuals, negatively impacts muscle StO2 characteristics. In older individuals, working muscle tissue may reach lower oxygen saturation during exercise and take longer to return to baseline oxygen saturation post-exercise.
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Affiliation(s)
- Michael Holmes
- Max E, Wastl Human Performance Laboratory, Department of Health and Kinesiology, Purdue University, West Lafayette, IN, USA
| | | | - Ahmed Ismaeel
- Department of Biology, Baylor University, Waco, TX, USA.
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Forsse JS, Buckley D, Ismaeel A, Richardson KA, Oliver A, Koutakis P. Effect of Age and Acute-Moderate Intensity Exercise on Biomarkers of Renal Health and Filtration. Biology (Basel) 2022; 11:527. [PMID: 35453726 PMCID: PMC9029611 DOI: 10.3390/biology11040527] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 03/24/2022] [Accepted: 03/25/2022] [Indexed: 06/14/2023]
Abstract
Aerobic exercise elicits a multitude of physiological improvements in both healthy and diseased populations. However, acute changes in renal health and filtration with aerobic exercise remain difficult to quantify by traditional biomarkers to estimate glomerular filtration rate (eGFR). This study aimed to determine if an acute bout of moderate-intensity aerobic exercise transiently improves non-traditional biomarkers when compared to traditional biomarkers of renal health and filtration in individuals without cardiometabolic diseases. Thirty-nine participants (n = 18 men; n = 21 women; age 32.5 + 12.6 yr; height 171.1 + 11.4 cm; weight 78.7 + 15.6 kg; BMI 27.1 + 5.8) completed a single bout of moderate-intensity (50-60% HRR) aerobic exercise. Blood and urine samples were collected and compared before and post-exercise. Serum creatinine, urine epidermal growth factor (uEGF), uEGF/urine creatinine ratio (uEGFR), and cystatin C (CyC) were measured. In addition, eGFR-MDRD and the CKD-epidemiology equations were used to analyze renal clearance. Relative to pre-exercise measures: serum creatinine (p = 0.26), uEGF (p = 0.35), and uEGFR (p = 0.09) remained unchanged, whereas cystatin C (p = 0.00) significantly increased post-exercise. CyC eGFR was the only estimator of renal filtration to significantly change (p = 0.04). In conclusion, CyC is the only biomarker of renal health and filtration to significantly increase after aerobic exercise. Further investigation focused on sampling time and exercise-intensity is needed to solidify the current understanding of renal health and filtration.
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Affiliation(s)
- Jeffrey S. Forsse
- Department of Health Human Performance and Recreation, Baylor University, Waco, TX 76706, USA;
- Kinesiology Department, Stephen F. Austin State University, Nacogdoches, TX 75962, USA; (D.B.); (A.O.)
| | - David Buckley
- Kinesiology Department, Stephen F. Austin State University, Nacogdoches, TX 75962, USA; (D.B.); (A.O.)
- Integrative Immunology Laboratory, University of Texas Arlington, Arlington, TX 76019, USA
| | - Ahmed Ismaeel
- Clinical Muscle Biology Lab, Baylor University, Waco, TX 76706, USA;
| | - Kathleen A. Richardson
- Department of Health Human Performance and Recreation, Baylor University, Waco, TX 76706, USA;
| | - Autumn Oliver
- Kinesiology Department, Stephen F. Austin State University, Nacogdoches, TX 75962, USA; (D.B.); (A.O.)
- Edward Via College of Osteopathic Medicine, University of Louisiana Monroe, Monroe, LA 71203, USA
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Ismaeel A, Laudato JA, Fletcher E, Papoutsi E, Tice A, Hwa LS, Miserlis D, Jamurtas AZ, Steiner J, Koutakis P. High-Fat Diet Augments the Effect of Alcohol on Skeletal Muscle Mitochondrial Dysfunction in Mice. Nutrients 2022; 14:1016. [PMID: 35267991 PMCID: PMC8912391 DOI: 10.3390/nu14051016] [Citation(s) in RCA: 5] [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: 01/15/2022] [Revised: 02/23/2022] [Accepted: 02/25/2022] [Indexed: 11/16/2022] Open
Abstract
Previous studies have shown that chronic heavy alcohol consumption and consumption of a high-fat (HF) diet can independently contribute to skeletal muscle oxidative stress and mitochondrial dysfunction, yet the concurrent effect of these risk factors remains unclear. We aimed to assess the effect of alcohol and different dietary compositions on mitochondrial activity and oxidative stress markers. Male and female mice were randomized to an alcohol (EtOH)-free HF diet, a HF + EtOH diet, or a low-Fat (LF) + EtOH diet for 6 weeks. At the end of the study, electron transport chain complex activity and expression as well as antioxidant activity and expression, were measured in skeletal muscles. Complex I and III activity were diminished in muscles of mice fed a HF + EtOH diet relative to the EtOH-free HF diet. Lipid peroxidation was elevated, and antioxidant activity was diminished, in muscles of mice fed a HF + EtOH diet as well. Consumption of a HF diet may exacerbate the negative effects of alcohol on skeletal muscle mitochondrial health and oxidative stress.
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Affiliation(s)
- Ahmed Ismaeel
- Department of Biology, Baylor University, Waco, TX 76798, USA; (A.I.); (E.F.); (E.P.)
| | - Joseph A. Laudato
- Department of Nutrition and Integrative Physiology, Florida State University, Tallahassee, FL 32304, USA; (J.A.L.); (A.T.); (J.S.)
| | - Emma Fletcher
- Department of Biology, Baylor University, Waco, TX 76798, USA; (A.I.); (E.F.); (E.P.)
| | - Evlampia Papoutsi
- Department of Biology, Baylor University, Waco, TX 76798, USA; (A.I.); (E.F.); (E.P.)
| | - Abigail Tice
- Department of Nutrition and Integrative Physiology, Florida State University, Tallahassee, FL 32304, USA; (J.A.L.); (A.T.); (J.S.)
| | - Lara S. Hwa
- Department of Psychology and Neuroscience, Baylor University, Waco, TX 76798, USA;
| | - Dimitrios Miserlis
- Department of Surgery, University of Texas Health Science Center San Antonio, San Antonio, TX 78229, USA;
| | - Athanasios Z. Jamurtas
- Department of Physical Education and Sport Sciences, University of Thessaly, 42100 Trikala, Greece;
- Department of Nutrition and Dietetics, University of Thessaly, 42100 Trikala, Greece
| | - Jennifer Steiner
- Department of Nutrition and Integrative Physiology, Florida State University, Tallahassee, FL 32304, USA; (J.A.L.); (A.T.); (J.S.)
| | - Panagiotis Koutakis
- Department of Biology, Baylor University, Waco, TX 76798, USA; (A.I.); (E.F.); (E.P.)
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Ismaeel A, Lavado R, Koutakis P. Metabolomics of peripheral artery disease. Adv Clin Chem 2022; 106:67-89. [PMID: 35152975 DOI: 10.1016/bs.acc.2021.09.004] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The science of metabolomics has emerged as a novel tool for studying changes in metabolism that accompany different disease states. Several studies have applied this evolving field to the study of various cardiovascular disease states, which has led to improved understanding of metabolic changes that underlie heart failure and ischemic heart disease. A significant amount of progress has also been made in the identification of novel biomarkers of cardiovascular disease. Another common atherosclerotic disease, peripheral artery disease (PAD) affects arteries of the lower extremities. Although certain aspects of the disease pathophysiology overlap with other cardiovascular diseases in general, PAD patients suffer unique manifestations that lead to significant morbidity and mortality as well as severe functional limitations. Furthermore, because over half of PAD patients are asymptomatic, there is a need for improved diagnostic and screening methods. Identification of metabolites associated with the disease may thus be a promising approach for PAD. However, PAD remains highly understudied. In this chapter, we discuss the application of metabolomics to the study of PAD.
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Affiliation(s)
- Ahmed Ismaeel
- Department of Biology, Baylor University, Waco, TX, United States
| | - Ramon Lavado
- Department of Environmental Science, Baylor University, Waco, TX, United States
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Ismaeel A, Miserlis D, Papoutsi E, Haynatzki G, Bohannon WT, Smith RS, Eidson JL, Casale GP, Pipinos II, Koutakis P. Endothelial cell-derived pro-fibrotic factors increase TGF-β1 expression by smooth muscle cells in response to cycles of hypoxia-hyperoxia. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166278. [PMID: 34601016 PMCID: PMC8629962 DOI: 10.1016/j.bbadis.2021.166278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 06/16/2021] [Revised: 09/12/2021] [Accepted: 09/23/2021] [Indexed: 01/03/2023]
Abstract
BACKGROUND The vascular pathology of peripheral artery disease (PAD) encompasses abnormal microvascular architecture and fibrosis in response to ischemia-reperfusion (I/R) cycles. We aimed to investigate the mechanisms by which pathological changes in the microvasculature direct fibrosis in the context of I/R. METHODS Primary human aortic endothelial cells (ECs) were cultured under cycles of normoxia-hypoxia (NH) or normoxia-hypoxia-hyperoxia (NHH) to mimic I/R. Primary human aortic smooth muscle cells (SMCs) were cultured and treated with media from the ECs. FINDINGS The mRNA and protein expression of the pro-fibrotic factors platelet derived growth factor (PDGF)-BB and connective tissue growth factor (CTGF) were significantly upregulated in ECs undergoing NH or NHH cycles. Treatment of SMCs with media from ECs undergoing NH or NHH cycles led to significant increases in TGF-β1, TGF-β pathway signaling intermediates, and collagen expression. Addition of neutralizing antibodies against PDGF-BB and CTGF to the media blunted the increases in TGF-β1 and collagen expression. Treatment of SMCs with PAD patient-derived serum also led to increased TGF-β1 levels. INTERPRETATION In an in-vitro model of I/R, which recapitulates the pathophysiology of PAD, increased secretion of PDGF-BB and CTGF by ECs was shown to be predominantly driving TGF-β1-mediated expression by SMCs. These cell culture experiments help elucidate the mechanism and interaction between ECs and SMCs in microvascular fibrosis associated with I/R. Thus, targeting these pro-fibrotic factors may be an effective strategy to combat fibrosis in response to cycles of I/R. FUNDING National Institute on Aging at the National Institutes of Health grant number R01AG064420. RESEARCH IN CONTEXT Evidence before this study: Previous studies in gastrocnemius biopsies from peripheral artery disease (PAD) patients showed that transforming growth factor beta 1 (TGF-β1), the most potent inducer of pathological fibrosis, is increased in the vasculature of PAD patients and correlated with collagen deposition. However, the exact cellular source of TGF-β1 remained unclear. Added value of this study: Exposing cells to cycles of normoxia-hypoxia-hyperoxia (NHH) resulted in pathological changes that are consistent with human PAD. This supports the idea that the use of NHH may be a reliable, novel in vitro model of PAD useful for studying associated pathophysiological mechanisms. Furthermore, pro-fibrotic factors (PDGF-BB and CTGF) released from endothelial cells were shown to induce a fibrotic phenotype in smooth muscle cells. This suggests a potential interaction between these cell types in the microvasculature that drives increased TGF-β1 expression and collagen deposition. Thus, targeting these pro-fibrotic factors may be an effective strategy to combat fibrosis in response to cycles of ischemia-reperfusion.
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Affiliation(s)
- Ahmed Ismaeel
- Department of Biology, Baylor University, B.207 Baylor Science Building, One Bear Place #97388, Waco, TX 76798-7388, USA
| | - Dimitrios Miserlis
- Department of Surgery, University of Texas Health Science Center San Antonio, 8300 Floyd Curl Dr., San Antonio, TX 78229, USA
| | - Evlampia Papoutsi
- Department of Biology, Baylor University, B.207 Baylor Science Building, One Bear Place #97388, Waco, TX 76798-7388, USA
| | - Gleb Haynatzki
- Department of Biostatistics, University of Nebraska Medical Center, 984375 Nebraska Medical Center, Omaha, NE 68198-4375, USA
| | - William T Bohannon
- Department of Surgery, Baylor Scott & White Medical Center, 2401 S 31st St, Temple, TX 76508, USA
| | - Robert S Smith
- Department of Surgery, Baylor Scott & White Medical Center, 2401 S 31st St, Temple, TX 76508, USA
| | - Jack L Eidson
- Department of Surgery, Baylor Scott & White Medical Center, 2401 S 31st St, Temple, TX 76508, USA
| | - George P Casale
- Department of Surgery, University of Nebraska Medical Center, 982500 Nebraska Medical Center, Omaha, NE 68198-2500, USA
| | - Iraklis I Pipinos
- Department of Surgery, University of Nebraska Medical Center, 982500 Nebraska Medical Center, Omaha, NE 68198-2500, USA
| | - Panagiotis Koutakis
- Department of Biology, Baylor University, B.207 Baylor Science Building, One Bear Place #97388, Waco, TX 76798-7388, USA.
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Ring A, Ismaeel A, Wechsler M, Fletcher E, Papoutsi E, Miserlis D, Koutakis P. MicroRNAs in peripheral artery disease: potential biomarkers and pathophysiological mechanisms. Ther Adv Cardiovasc Dis 2022; 16:17539447221096940. [PMID: 35583375 PMCID: PMC9121511 DOI: 10.1177/17539447221096940] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 04/07/2022] [Indexed: 11/29/2022] Open
Abstract
Peripheral artery disease (PAD) is a disease of atherosclerosis in the lower extremities. PAD carries a massive burden worldwide, while diagnosis and treatment options are often lacking. One of the key points of research in recent years is the involvement of microRNAs (miRNAs), which are short 20-25 nucleotide single-stranded RNAs that can act as negative regulators of post-transcriptional gene expression. Many of these miRNAs have been discovered to be misregulated in PAD patients, suggesting a potential utility as biomarkers for PAD diagnosis. miRNAs have also been shown to play an important role in many different pathophysiological aspects involved in the initiation and progression of the disease including angiogenesis, hypoxia, inflammation, as well as other cellular functions like cell proliferation and migration. The research on miRNAs in PAD has the potential to lead to a whole new class of diagnostic tools and treatments.
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Affiliation(s)
- Andrew Ring
- Department of Biology, Baylor University, Waco,
TX, USA
| | - Ahmed Ismaeel
- Department of Biology, Baylor University, Waco,
TX, USA
| | - Marissa Wechsler
- Department of Biomedical Engineering and
Chemical Engineering, The University of Texas at San Antonio, San Antonio,
TX, USA
| | - Emma Fletcher
- Department of Biology, Baylor University, Waco,
TX, USA
| | | | - Dimitrios Miserlis
- Department of Surgery, The University of Texas
Health Science Center at San Antonio, San Antonio, TX, USA
| | - Panagiotis Koutakis
- Department of Biology, Baylor University, B.207
Baylor Science Building, One Bear Place #97388, Waco, TX 76798-7388,
USA
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Duclot F, Sailer L, Koutakis P, Wang Z, Kabbaj M. Transcriptomic Regulations Underlying Pair-bond Formation and Maintenance in the Socially Monogamous Male and Female Prairie Vole. Biol Psychiatry 2022; 91:141-151. [PMID: 33549315 PMCID: PMC8187463 DOI: 10.1016/j.biopsych.2020.11.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 11/23/2020] [Accepted: 11/23/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND The ability to form enduring social bonds is characteristic of human nature, and impairments in social affiliation are central features of severe neuropsychiatric disorders including autism spectrum disorder and schizophrenia. Owing to its ability to form long-term pair-bonds, the socially monogamous prairie vole has emerged as an excellent model to study the neurobiology of social attachment. Despite the enduring nature of the bond, however, surprisingly few genes have been implicated in the pair-bonding process in either sex. METHODS Male and female prairie voles (Microtus ochrogaster) were cohabitated with an opposite-sex partner for 24 hours or 3 weeks, and transcriptomic regulations in the nucleus accumbens were measured by RNA sequencing. RESULTS We found sex-specific response patterns despite similar behavioral indicators of pair-bond establishment. Indeed, 24 hours of cohabitation with an opposite-sex partner induced widespread transcriptomic changes that remained sustained to some extent in females after 3 weeks but returned to baseline before a second set of regulations in males. This led to a highly sexually biased nucleus accumbens transcriptome at 3 weeks related to processes such as neurotransmission, protein turnover, and DNA transcription. In particular, we found sex-specific alterations of mitochondrial dynamics following cohabitation, with a shift toward fission in males. CONCLUSIONS In addition to identifying the genes, networks, and pathways involved in the pair-bonding process in the nucleus accumbens, our work illustrates the vast extent of sex differences in the molecular mechanisms underlying pair-bonding in prairie voles and paves the way to further our understanding of the complex social bonding process.
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Affiliation(s)
- Florian Duclot
- Department of Biomedical Sciences, Florida State University, Tallahassee, Florida; Program in Neuroscience, Florida State University, Tallahassee, Florida.
| | - Lindsay Sailer
- Department of Biomedical Sciences, Florida State University, Tallahassee, Florida; Program in Neuroscience, Florida State University, Tallahassee, Florida
| | - Panagiotis Koutakis
- Department of Nutrition, Food, and Exercise Sciences, Florida State University, Tallahassee, Florida
| | - Zuoxin Wang
- Department of Psychology, Florida State University, Tallahassee, Florida
| | - Mohamed Kabbaj
- Department of Biomedical Sciences, Florida State University, Tallahassee, Florida; Program in Neuroscience, Florida State University, Tallahassee, Florida.
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Papadakis Z, Garcia-Retortillo S, Koutakis P. Effects of Acute Partial Sleep Deprivation and High-Intensity Interval Exercise on Postprandial Network Interactions. Front Netw Physiol 2022; 2:869787. [PMID: 36926086 PMCID: PMC10013041 DOI: 10.3389/fnetp.2022.869787] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 03/29/2022] [Indexed: 12/13/2022]
Abstract
Introduction: High-intensity interval exercise (HIIE) is deemed effective for cardiovascular and autonomic nervous system (ANS) health-related benefits, while ANS disturbance increases the risk for cardiovascular disease (CVD). Postprandial lipemia and acute-partial sleep deprivation (APSD) are considered as CVD risk factors due to their respective changes in ANS. Exercising in the morning hours after APSD and have a high-fat breakfast afterwards may alter the interactions of the cardiovascular, autonomic regulation, and postprandial lipemic systems threatening individuals' health. This study examined postprandial network interactions between autonomic regulation through heart rate variability (HRV) and lipemia via low-density lipoprotein (LDL) cholesterol in response to APSD and HIIE. Methods: Fifteen apparently healthy and habitually good sleepers (age 31 ± 5.2 SD yrs) completed an acute bout of an isocaloric HIIE (in form of 3:2 work-to-rest ratio at 90 and 40% of VO2 reserve) after both a reference sleep (RSX) and 3-3.5 h of acute-partial sleep deprivation (SSX) conditions. HRV time and frequency domains and LDL were evaluated in six and seven time points surrounding sleep and exercise, respectively. To identify postprandial network interactions, we constructed one correlation analysis and one physiological network for each experimental condition. To quantify the interactions within the physiological networks, we also computed the number of links (i.e., number of significant correlations). Results: We observed an irruption of negative links (i.e., negative correlations) between HRV and LDL in the SSX physiological network compared to RSX. Discussion: We recognize that a correlation analysis does not constitute a true network analysis due to the absence of analysis of a time series of the original examined physiological variables. Nonetheless, the presence of negative links in SSX reflected the impact of sleep deprivation on the autonomic regulation and lipemia and, thus, revealed the inability of HIIE to remain cardioprotective under APSD. These findings underlie the need to further investigate the effects of APSD and HIIE on the interactions among physiological systems.
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Affiliation(s)
- Zacharias Papadakis
- Human Performance Laboratory, Department of Sport and Exercise Sciences, Barry University, Miami Shores, FL, United States
| | - Sergi Garcia-Retortillo
- Keck Laboratory for Network Physiology, Department of Physics, Boston University, Boston, MA, United States
| | - Panagiotis Koutakis
- Clinical Muscle Biology Laboratory, Department of Biology, Baylor University, Waco, TX, United States
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Scrivner O, Ismaeel A, Kumar MR, Sorokolet K, Koutakis P, Farmer PJ. Expanding the Reactive Sulfur Metabolome: Intracellular and Efflux Measurements of Small Oxoacids of Sulfur (SOS) and H 2S in Human Primary Vascular Cell Culture. Molecules 2021; 26:7160. [PMID: 34885743 PMCID: PMC8659008 DOI: 10.3390/molecules26237160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 10/25/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 12/29/2022] Open
Abstract
Hydrogen sulfide (H2S) is an endogenous signaling molecule which is important for cardiovascular health, but its mechanism of action remains poorly understood. Here, we report measurements of H2S as well as its oxidized metabolites, termed small oxoacids of sulfur (SOS = HSOH and HOSOH), in four human primary vascular cell lines: smooth muscle and endothelial cells derived from both human arterial and coronary tissues. We use a methodology that targets small molecular weight sulfur species; mass spectrometric analysis allows for species quantification to report cellular concentrations based on an H2S calibration curve. The production of H2S and SOS is orders of magnitude higher in smooth muscle (nanomolar) as compared to endothelial cell lines (picomolar). In all the primary lines measured, the distributions of these three species were HOSOH >H2S > HSOH, with much higher SOS than seen previously in non-vascular cell lines. H2S and SOS were effluxed from smooth muscle cells in higher concentrations than endothelial cells. Aortic smooth muscle cells were used to examine changes under hypoxic growth conditions. Hypoxia caused notable increases in HSOH and ROS, which we attribute to enhanced sulfide quinone oxidase activity that results in reverse electron transport.
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Affiliation(s)
- Ottis Scrivner
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX 76798, USA; (O.S.); (M.R.K.); (K.S.)
| | - Ahmed Ismaeel
- Department of Biology, Baylor University, Waco, TX 76798, USA; (A.I.); (P.K.)
| | - Murugaeson R. Kumar
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX 76798, USA; (O.S.); (M.R.K.); (K.S.)
| | - Kristina Sorokolet
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX 76798, USA; (O.S.); (M.R.K.); (K.S.)
| | - Panagiotis Koutakis
- Department of Biology, Baylor University, Waco, TX 76798, USA; (A.I.); (P.K.)
| | - Patrick J. Farmer
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX 76798, USA; (O.S.); (M.R.K.); (K.S.)
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Wilburn D, Ismaeel A, Machek S, Fletcher E, Koutakis P. Shared and distinct mechanisms of skeletal muscle atrophy: A narrative review. Ageing Res Rev 2021; 71:101463. [PMID: 34534682 DOI: 10.1016/j.arr.2021.101463] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 06/14/2021] [Revised: 08/30/2021] [Accepted: 09/11/2021] [Indexed: 12/15/2022]
Abstract
Maintenance of skeletal muscle mass and function is an incredibly nuanced balance of anabolism and catabolism that can become distorted within different pathological conditions. In this paper we intend to discuss the distinct intracellular signaling events that regulate muscle protein atrophy for a given clinical occurrence. Aside from the common outcome of muscle deterioration, several conditions have at least one or more distinct mechanisms that creates unique intracellular environments that facilitate muscle loss. The subtle individuality to each of these given pathologies can provide both researchers and clinicians with specific targets of interest to further identify and increase the efficacy of medical treatments and interventions.
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Affiliation(s)
- Dylan Wilburn
- Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX 76706, USA
| | - Ahmed Ismaeel
- Department of Biology, Baylor University, Waco, TX 76706, USA
| | - Steven Machek
- Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX 76706, USA
| | - Emma Fletcher
- Department of Health, Human Performance, and Recreation, Baylor University, Waco, TX 76706, USA; Department of Biology, Baylor University, Waco, TX 76706, USA
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Torres R, Adair K, Lowry C, Dhillon A, Ismaeel A, Koutakis P, Forsse JS. The Influence Of Age And Cardiorespiratory Fitness On Cardiac Autonomic Modulation. A Pilot Study. Med Sci Sports Exerc 2021. [DOI: 10.1249/01.mss.0000759608.27036.e1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Dhillon AS, Buckley DJ, Ismaeel A, Adair K, Lowry C, Torres R, Merrell H, Papoutsi E, Koutakis P, Forsse JS. In The Absence Of Cardiometabolic Diseases Is Age An Independent Factor In Assessing Renal Health And Function? A Pilot Study. Med Sci Sports Exerc 2021. [DOI: 10.1249/01.mss.0000760232.07248.61] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Heileson JL, Papadakis Z, Lowry C, Torres R, Dhillon A, Adair K, Ismaeel A, Koutakis P, Forsse J. Can Total Body Composition Be Used As A Predictor Of Cardiorespiratory Fitness In The Absence Of Cardiometabolic Diseases? Med Sci Sports Exerc 2021. [DOI: 10.1249/01.mss.0000759116.69713.8c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Lowry C, Torres R, Adair K, Dhillon A, Ismaeel A, Koutakis P, Beeson C, Forsse JS. The Effectiveness Of HRV As A Predictor Of Renal Health And Function In The Absence Of Cardiometabolic Diseases. A Pilot Study. Med Sci Sports Exerc 2021. [DOI: 10.1249/01.mss.0000764612.49543.bb] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Forsse JS, Buckley D, Ismaeel A, Adair K, Torres R, Lowry C, Dhillon A, Koutakis P. In the absence of cardiometabolic diseases, is age an independent factor in assessing renal health and filtration? A pilot study. J Nephropathol 2021. [DOI: 10.34172/jnp.2022.17224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Introduction: Serum creatinine (sCr) is conventionally used to characterize the progressive decline in renal filtration (RF). Assessment of RF and renal health (RH) is traditionally believed to be agedependent. However, in the absence of cardiometabolic disease (CMD), this may not be the case. Objectives: The purpose of this study was to determine the magnitude of age as an influencing factor independent of CMD with novel markers of RH/RF in a single health assessment. Patients and Methods: Fifty-four participants (n = 27 men; n = 27 women; age 33.4 ± 12.5 years; BMI 26.5 ± 5.5; SBP 120 ± 10.4; DBP 77.7 ± 6.7; CHOL 174 ± 30) free of CMD were recruited to assess sCr, urine creatinine (uCr), cystatin C (CyC), and urine epidermal growth factor (uEGF) to calculate estimates of RH/F via uEGF/uCr ratio (uEGFR), eGFR - modification of diet in renal disease (MDRD), CKD-EPI, and sCr/CyC eGFR. Results: There were no significant differences between age groups (20s, 30s, 40s, 50s) in biomarkers and estimates of RH/RF, sCr (P=0.91), uEGF (P=0.46), CyC (P=0.13), CyC eGFR (P= 0.10), MDRD (P=0.12), CKD-EPI (P=0.80), and sCr/CyC eGFR (P=0.12). Post-hoc analysis revealed uEGFR was the only significantly different variable between 40s and 50s age groups (P= 0.02). Conclusion: Changes in RH/RF appear to be independent of age in the absence of CMD. Indicating RH/RF could potentially be maintained in adulthood and throughout the older adult years with the continued absence of CMD.
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Affiliation(s)
- Jeffrey S. Forsse
- Department of Health Human Performance and Recreation; Baylor University, Waco, TX, 76706, USA
- Stephen F. Austin State University, Kinesiology Department, Nacogdoches, TX, 75962, USA
| | - David Buckley
- Integrative Immunology Laboratory, University of Texas Arlington, Arlington, TX, 76019, USA
- Stephen F. Austin State University, Kinesiology Department, Nacogdoches, TX, 75962, USA
| | - Ahmed Ismaeel
- Clinical Muscle Biology Lab, Baylor University, Waco, TX, 76706, USA
| | - Kathleen Adair
- Department of Health Human Performance and Recreation; Baylor University, Waco, TX, 76706, USA
| | - Ricardo Torres
- Department of Health Human Performance and Recreation; Baylor University, Waco, TX, 76706, USA
| | - Catherine Lowry
- Department of Health Human Performance and Recreation; Baylor University, Waco, TX, 76706, USA
| | - Anurag Dhillon
- Department of Health Human Performance and Recreation; Baylor University, Waco, TX, 76706, USA
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Ismaeel A, Greathouse KL, Newton N, Miserlis D, Papoutsi E, Smith RS, Eidson JL, Dawson DL, Milner CW, Widmer RJ, Bohannon WT, Koutakis P. Phytochemicals as Therapeutic Interventions in Peripheral Artery Disease. Nutrients 2021; 13:2143. [PMID: 34206667 PMCID: PMC8308302 DOI: 10.3390/nu13072143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 05/27/2021] [Revised: 06/13/2021] [Accepted: 06/19/2021] [Indexed: 12/12/2022] Open
Abstract
Peripheral artery disease (PAD) affects over 200 million people worldwide, resulting in significant morbidity and mortality, yet treatment options remain limited. Among the manifestations of PAD is a severe functional disability and decline, which is thought to be the result of different pathophysiological mechanisms including oxidative stress, skeletal muscle pathology, and reduced nitric oxide bioavailability. Thus, compounds that target these mechanisms may have a therapeutic effect on walking performance in PAD patients. Phytochemicals produced by plants have been widely studied for their potential health effects and role in various diseases including cardiovascular disease and cancer. In this review, we focus on PAD and discuss the evidence related to the clinical utility of different phytochemicals. We discuss phytochemical research in preclinical models of PAD, and we highlight the results of the available clinical trials that have assessed the effects of these compounds on PAD patient functional outcomes.
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Affiliation(s)
- Ahmed Ismaeel
- Department of Biology, Baylor University, Waco, TX 76798, USA; (A.I.); (K.L.G.); (E.P.)
| | - K. Leigh Greathouse
- Department of Biology, Baylor University, Waco, TX 76798, USA; (A.I.); (K.L.G.); (E.P.)
- Department of Human Sciences and Design, Baylor University, Waco, TX 76798, USA
| | - Nathan Newton
- Department of Chemistry and Biochemistry, Baylor University, Waco, TX 76798, USA;
| | - Dimitrios Miserlis
- Department of Surgery, University of Texas Health Science Center San Antonio, San Antonio, TX 78229, USA;
| | - Evlampia Papoutsi
- Department of Biology, Baylor University, Waco, TX 76798, USA; (A.I.); (K.L.G.); (E.P.)
| | - Robert S. Smith
- Department of Surgery, Baylor Scott & White Medical Center, Temple, TX 76508, USA; (R.S.S.); (J.L.E.); (D.L.D.); (C.W.M.); (W.T.B.)
| | - Jack L. Eidson
- Department of Surgery, Baylor Scott & White Medical Center, Temple, TX 76508, USA; (R.S.S.); (J.L.E.); (D.L.D.); (C.W.M.); (W.T.B.)
| | - David L. Dawson
- Department of Surgery, Baylor Scott & White Medical Center, Temple, TX 76508, USA; (R.S.S.); (J.L.E.); (D.L.D.); (C.W.M.); (W.T.B.)
| | - Craig W. Milner
- Department of Surgery, Baylor Scott & White Medical Center, Temple, TX 76508, USA; (R.S.S.); (J.L.E.); (D.L.D.); (C.W.M.); (W.T.B.)
| | - Robert J. Widmer
- Heart & Vascular Department, Baylor Scott & White Medical Center, Temple, TX 76508, USA;
| | - William T. Bohannon
- Department of Surgery, Baylor Scott & White Medical Center, Temple, TX 76508, USA; (R.S.S.); (J.L.E.); (D.L.D.); (C.W.M.); (W.T.B.)
| | - Panagiotis Koutakis
- Department of Biology, Baylor University, Waco, TX 76798, USA; (A.I.); (K.L.G.); (E.P.)
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Stamatis A, Deal PJ, Morgan GB, Forsse JS, Papadakis Z, McKinley-Barnard S, Scudamore EM, Koutakis P. Can athletes be tough yet compassionate to themselves? Practical implications for NCAA mental health best practice no. 4. PLoS One 2020; 15:e0244579. [PMID: 33382733 PMCID: PMC7774983 DOI: 10.1371/journal.pone.0244579] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 12/13/2020] [Indexed: 11/18/2022] Open
Abstract
Recent tragic events and data from official NCAA reports suggest student-athletes' well-being is compromised by symptoms of mental health (MH) disorders. Self-compassion (SC) and mental toughness (MT) are two psychological constructs that have been shown effective against stressors associated with sports. The purpose of this study was to investigate SC, MT, and MH in a NCAA environment for the first time and provide practical suggestions for MH best practice No.4. In total, 542 student-athletes participated across Divisions (Mage = 19.84, SD = 1.7). Data were collected through Mental Toughness Index, Self-Compassion Scale, and Mental Health Continuum–Short Form. MT, SC (including mindfulness), and MH were positively correlated. Males scored higher than females on all three scales. No differences were found between divisions. SC partially mediated the MT-MH relationship, but moderation was not significant. Working towards NCAA MH best practice should include training athletes in both MT and SC skills (via mindfulness).
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Affiliation(s)
- Andreas Stamatis
- Sport and Wellness, SUNY Plattsburgh, Plattsburgh, New York, United States of America
- * E-mail:
| | - Paul J. Deal
- Counselor Education, SUNY Plattsburgh, Plattsburgh, New York, United States of America
| | - Grant B. Morgan
- Educational Psychology, Baylor University, Waco, Texas, United States of America
| | - Jeffrey S. Forsse
- Kinesiology and Health Science, Stephen F. Austin State University, Nacogdoches, Texas, United States of America
- Health, Human Performance and Recreation, Baylor University, Waco, Texas, United States of America
| | - Zacharias Papadakis
- Sport and Exercise Sciences, Barry University, Miami Shores, Florida, United States of America
| | - Sarah McKinley-Barnard
- Health, Kinesiology, and Sport, University of South Alabama, Mobile, Alabama, United States of America
| | - Eric M. Scudamore
- Health, Physical Education, and Sport Sciences, Arkansas State University, Jonesboro, Arkansas, United States of America
| | - Panagiotis Koutakis
- Nutrition, Food and Exercise Sciences, Florida State University, Tallahassee, Florida, United States of America
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Stamatis A, Grandjean P, Morgan G, Padgett RN, Cowden R, Koutakis P. Developing and training mental toughness in sport: a systematic review and meta-analysis of observational studies and pre-test and post-test experiments. BMJ Open Sport Exerc Med 2020; 6:e000747. [PMID: 32577300 PMCID: PMC7299040 DOI: 10.1136/bmjsem-2020-000747] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/19/2020] [Indexed: 11/25/2022] Open
Abstract
Objective To investigate the efficacy of interventions designed to train and develop mental toughness (MT) in sport. Design Systematic review and meta-analysis. Data sources Journal articles, conference papers and doctoral theses indexed in Embase, Scopus, PubMed and SPORTDiscus from inception to 22 November 2019. Eligibility criteria for selecting studies Observational and pre–post experimental designs on the efficacy of physical and/or psychological interventions designed to promote MT in athletes. Results A total of 12 studies, published between 2005 and 2019, were included in the review. A majority of the studies included a sample comprised exclusively of male athletes (54.55%), MT interventions were primarily psychological (83.33%) and most studies measured MT via self-report (75%). The Psychological Performance Inventory (25%), the Mental Toughness Questionnaire-48 (16.67%), and the Mental, Emotional and Bodily Toughness Inventory (16.67%) were the most popular inventories used to measure MT. Methodological quality assessments for controlled intervention studies (k=7), single group pre-test–post-test designs (k=4) and single-subject designs (k=1) indicated that the risk of bias was high in most (75%) of the studies. The meta-analysis involving k=10 studies revealed a large effect (d=0.80, 95% CI 0.30 to 1.28), with variability across studies estimated at 0.56. Conclusion Although the findings of this review suggest there are effective, empirically based interventions designed to train MT in sport, practitioners should be aware of the level of validity of intervention research before adopting any of the MT training programmes reported in the applied sport psychology literature.
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Affiliation(s)
- Andreas Stamatis
- Department of Sport and Wellness, SUNY Plattsburgh, Plattsburgh, New York, USA
| | - Peter Grandjean
- Department of Health, Exercise Science, and Recreation Management, University of Mississippi, University, Mississippi, USA
| | - Grant Morgan
- Department of Educational Psychology, Baylor University, Waco, Texas, USA
| | | | - Richard Cowden
- Department of Psychology, University of the Free State, Bloemfontein, Free State, South Africa
| | - Panagiotis Koutakis
- Department of Nutrition, Food, and Exercise Sciences, Florida State University, Tallahassee, Florida, USA
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Hayson A, Koutakis P, Hillison D, Bullock A, Ismaeel A, Kaelin D, Smith D, Brumberg R. Patient and Donor Characteristics That Influence Patency Rates of Cryopreserved Conduits Used in Lower Extremity Limb Salvage. J Vasc Surg 2020. [DOI: 10.1016/j.jvs.2019.10.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ismaeel A, Papoutsi E, Bohannon WT, Smith R, Brumberg R, Castro CH, Kirk JS, Pipinos II, Koutakis P. Nitric Oxide Bioavailability Is Reduced in Peripheral Artery Disease in Association With Increased Oxidative Stress and an Altered Biopterin System. JVS Vasc Sci 2020. [DOI: 10.1016/j.jvssci.2020.11.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Dykstra R, Hanson N, Koutakis P, Garner C, Diehl C. Skeletal Muscle Oxidation During an Incremental Exercise Test in Younger and Middle-aged Individuals. Med Sci Sports Exerc 2019. [DOI: 10.1249/01.mss.0000562362.38080.5a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Koutakis P, Ismaeel A, Papoutsi E, Kidd J, Smith RS, Brumberg R, Kirk JS, Bohannon WT. Desmin is Improved in the Gastrocnemius of Patients with Peripheral Artery Disease after Revascularization Interventions. Med Sci Sports Exerc 2019. [DOI: 10.1249/01.mss.0000561751.99374.64] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ismaeel A, Franco ME, Lavado R, Koutakis P. Metabolomic Profiling of Amino Acid Metabolism in Peripheral Artery Disease Patients. Med Sci Sports Exerc 2019. [DOI: 10.1249/01.mss.0000561752.99374.bf] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Koutakis P. 3281 Board # June 1 9:00 AM - 11:00 AM. Med Sci Sports Exerc 2019. [DOI: 10.1249/01.mss.0000563198.34720.f8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Koutakis P, Ismaeel A, Farmer P, Purcell S, Smith RS, Eidson JL, Bohannon WT. Oxidative stress and antioxidant treatment in patients with peripheral artery disease. Physiol Rep 2019; 6:e13650. [PMID: 29611350 PMCID: PMC5880878 DOI: 10.14814/phy2.13650] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 02/12/2018] [Accepted: 02/22/2018] [Indexed: 12/27/2022] Open
Abstract
Peripheral artery disease is an atherosclerotic disease of arterial vessels that mostly affects arteries of lower extremities. Effort induced cycles of ischemia and reperfusion lead to increased reactive oxygen species production by mitochondria. Therefore, the pathophysiology of peripheral artery disease is a consequence of metabolic myopathy, and oxidative stress is the putative major operating mechanism behind the structural and metabolic changes that occur in muscle. In this review, we discuss the evidence for oxidative damage in peripheral artery disease and discuss management strategies related to antioxidant supplementation. We also highlight the major pathways governing oxidative stress in the disease and discuss their implications in disease progression. Potential therapeutic targets and diagnostic methods related to these mechanisms are explored, with an emphasis on the Nrf2 pathway.
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Affiliation(s)
- Panagiotis Koutakis
- Department of Health Human Performance and Recreation, Baylor University, Waco, Texas
| | - Ahmed Ismaeel
- Department of Health Human Performance and Recreation, Baylor University, Waco, Texas
| | - Patrick Farmer
- Department of Chemistry and Biochemistry, Baylor University, Waco, Texas
| | - Seth Purcell
- Department of Surgery, Baylor Scott and White Medical Center, Temple, Texas
| | - Robert S Smith
- Department of Surgery, Baylor Scott and White Medical Center, Temple, Texas
| | - Jack L Eidson
- Department of Surgery, Baylor Scott and White Medical Center, Temple, Texas
| | - William T Bohannon
- Department of Surgery, Baylor Scott and White Medical Center, Temple, Texas
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