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Ferreira-Santos L, Ramirez-Perez FI, Foote CA, Augenreich MA, McMillan NJ, Williams MB, Gonzalez-Vallejo JD, Power G, Wheeler AA, Manrique-Acevedo C, Martinez-Lemus LA, Padilla J. Neuraminidase-induced externalization of phosphatidylserine activates ADAM17 and impairs insulin signaling in endothelial cells. Am J Physiol Heart Circ Physiol 2024; 326:H270-H277. [PMID: 37999645 DOI: 10.1152/ajpheart.00638.2023] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/08/2023] [Accepted: 11/08/2023] [Indexed: 11/25/2023]
Abstract
Endothelial insulin resistance represents a causal factor in the pathogenesis of type 2 diabetes (T2D) and vascular disease, thus the need to identify molecular mechanisms underlying defects in endothelial insulin signaling. We previously have shown that a disintegrin and metalloproteinase-17 (ADAM17) is increased while insulin receptor α-subunit (IRα) is decreased in the vasculature of patients with T2D, leading to impaired insulin-induced vasodilation. We have also demonstrated that ADAM17 sheddase activity targets IRα; however, the mechanisms driving endothelial ADAM17 activity in T2D are largely unknown. Herein, we report that externalization of phosphatidylserine (PS) to the outer leaflet of the plasma membrane causes ADAM17-mediated shedding of IRα and blunting of insulin signaling in endothelial cells. Furthermore, we demonstrate that endothelial PS externalization is mediated by the phospholipid scramblase anoctamin-6 (ANO6) and that this process can be stimulated by neuraminidase, a soluble enzyme that cleaves sialic acid residues. Of note, we demonstrate that men and women with T2D display increased levels of neuraminidase activity in plasma, relative to age-matched healthy individuals, and this occurs in conjunction with increased ADAM17 activity and impaired leg blood flow responses to endogenous insulin. Collectively, this work reveals the neuraminidase-ANO6-ADAM17 axis as a novel potential target for restoring endothelial insulin sensitivity in T2D.NEW & NOTEWORTHY This work provides the first evidence that neuraminidase, an enzyme increased in the circulation of men and women with type 2 diabetes (T2D), promotes anoctamin-6 (ANO6)-dependent externalization of phosphatidylserine in endothelial cells, which in turn leads to activation of a disintegrin and metalloproteinase-17 (ADAM17) and consequent shedding of the insulin receptor-α from the cell surface. Hence, this work supports that consideration should be given to the neuraminidase-ANO6-ADAM17 axis as a novel potential target for restoring endothelial insulin sensitivity in T2D.
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Affiliation(s)
| | | | - Christopher A Foote
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri, United States
| | - Marc A Augenreich
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, United States
| | - Neil J McMillan
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, United States
| | - Morgan B Williams
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
| | | | - Gavin Power
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, United States
| | - Andrew A Wheeler
- Department of Surgery, University of Missouri, Columbia, Missouri, United States
| | - Camila Manrique-Acevedo
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri, United States
- Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri, United States
| | - Luis A Martinez-Lemus
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri, United States
- Center for Precision Medicine, Department of Medicine, University of Missouri, Columbia, Missouri, United States
| | - Jaume Padilla
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, United States
- Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri, United States
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2
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Foote CA, Ramirez-Perez FI, Smith JA, Ghiarone T, Morales-Quinones M, McMillan NJ, Augenreich MA, Power G, Burr K, Aroor AR, Bender SB, Manrique-Acevedo C, Padilla J, Martinez-Lemus LA. Neuraminidase inhibition improves endothelial function in diabetic mice. Am J Physiol Heart Circ Physiol 2023; 325:H1337-H1353. [PMID: 37801046 PMCID: PMC10908409 DOI: 10.1152/ajpheart.00337.2023] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 09/29/2023] [Accepted: 09/29/2023] [Indexed: 10/07/2023]
Abstract
Neuraminidases cleave sialic acids from glycocalyx structures and plasma neuraminidase activity is elevated in type 2 diabetes (T2D). Therefore, we hypothesize circulating neuraminidase degrades the endothelial glycocalyx and diminishes flow-mediated dilation (FMD), whereas its inhibition restores shear mechanosensation and endothelial function in T2D settings. We found that compared with controls, subjects with T2D have higher plasma neuraminidase activity, reduced plasma nitrite concentrations, and diminished FMD. Ex vivo and in vivo neuraminidase exposure diminished FMD and reduced endothelial glycocalyx presence in mouse arteries. In cultured endothelial cells, neuraminidase reduced glycocalyx coverage. Inhalation of the neuraminidase inhibitor, zanamivir, reduced plasma neuraminidase activity, enhanced endothelial glycocalyx length, and improved FMD in diabetic mice. In humans, a single-arm trial (NCT04867707) of zanamivir inhalation did not reduce plasma neuraminidase activity, improved glycocalyx length, or enhanced FMD. Although zanamivir plasma concentrations in mice reached 225.8 ± 22.0 ng/mL, in humans were only 40.0 ± 7.2 ng/mL. These results highlight the potential of neuraminidase inhibition for ameliorating endothelial dysfunction in T2D and suggest the current Food and Drug Administration-approved inhaled dosage of zanamivir is insufficient to achieve desired outcomes in humans.NEW & NOTEWORTHY This work identifies neuraminidase as a key mediator of endothelial dysfunction in type 2 diabetes that may serve as a biomarker for impaired endothelial function and predictive of development and progression of cardiovascular pathologies associated with type 2 diabetes (T2D). Data show that intervention with the neuraminidase inhibitor zanamivir at effective plasma concentrations may represent a novel pharmacological strategy for restoring the glycocalyx and ameliorating endothelial dysfunction.
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Affiliation(s)
- Christopher A Foote
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri, United States
| | | | - James A Smith
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, United States
| | - Thaysa Ghiarone
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
| | | | - Neil J McMillan
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, United States
| | - Marc A Augenreich
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, United States
| | - Gavin Power
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, United States
| | - Katherine Burr
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
| | - Annayya R Aroor
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri, United States
- Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri, United States
| | - Shawn B Bender
- Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri, United States
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri, United States
| | - Camila Manrique-Acevedo
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri, United States
- Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri, United States
| | - Jaume Padilla
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri, United States
- Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri, United States
| | - Luis A Martinez-Lemus
- NextGen Precision Health, University of Missouri, Columbia, Missouri, United States
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri, United States
- Department of Medicine, Center for Precision Medicine, University of Missouri, Columbia, Missouri, United States
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Baynard T, Griffith GJ, Wee SO, McMillan NJ, Bollaert RE, Motl RW, Fernhall B. Home-based exercise improves subclinical atherosclerosis marker in multiple sclerosis. Mult Scler Relat Disord 2023; 79:105002. [PMID: 37716212 DOI: 10.1016/j.msard.2023.105002] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 07/12/2023] [Accepted: 09/06/2023] [Indexed: 09/18/2023]
Abstract
PURPOSE Using a 12-week, randomized controlled trial coupled with social cognitive theory behavioral coaching, we aimed to assess the effect of a home-based aerobic training intervention versus an attention-control on aerobic fitness, subclinical atherosclerosis, and mobility in persons with MS. METHODS Persons with MS with an expanded disability status scale score between 0 and 4 were randomized to a 12-week aerobic exercise (EX) (n = 26; 19 females; 49 yrs; 28.8 kg/m2) or attention-control (CON) condition (stretching; n = 22; 16 females; 44 yrs; 29.2 kg/m2). Aerobic capacity was assessed via a graded cycle ergometry test with indirect calorimetry. The co-primary measures of subclinical atherosclerosis assessed included carotid intima media thickness, a test of vasodilatory reactivity, and arterial stiffness. Mobility was assessed via a timed 25-foot walk test (T25FW) and a 6 min walk test. The EX group engaged in cycle ergometry 3d/wk with gradual increases in the intensity and duration of the exercise sessions. CON participated in standardized stretching designed to provide the same contact time as EX 3d/wk. Behavioral coaching took place via weekly phone/video chats to track adherence. RESULTS Aerobic capacity, vasodilatory reactivity, and T25FW speed increased only in the EX group, 7%, 16%, and 13% (p<0.05), respectively; whereas the CON group did not change. CONCLUSION The EX group had modest, yet significant, increases in aerobic capacity over the 12-week period, coupled with improvements in T25FW speed and vasodilatory reactivity. A home-based exercise intervention can improve outcomes of a subclinical marker of atherosclerosis, which provides a basis for examining these outcomes in persons prescreened for CVD-related comorbidities and/or mobility issues.
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Affiliation(s)
- Tracy Baynard
- Integrative Physiology Laboratory, University of Illinois at Chicago, Chicago, IL 60612; Currently affiliated with the Manning College of Nursing and Health Sciences, University of Massachusetts Boston, Boston, MA 02125.
| | - Garett J Griffith
- Integrative Physiology Laboratory, University of Illinois at Chicago, Chicago, IL 60612; Department of Physical Therapy and Human Movement Sciences, Northwestern University, Chicago, IL, 60611
| | - Sang Ouk Wee
- Integrative Physiology Laboratory, University of Illinois at Chicago, Chicago, IL 60612; Department of Kinesiology, California State University, San Bernardino, CA 92407
| | - Neil J McMillan
- Integrative Physiology Laboratory, University of Illinois at Chicago, Chicago, IL 60612; Department of Nutrition & Exercise Physiology, University of Missouri, Columbia, MO 65211
| | - Rachel E Bollaert
- Department of Physical Therapy, Marquette University, Milwaukee, WI 53201
| | - Robert W Motl
- Integrative Physiology Laboratory, University of Illinois at Chicago, Chicago, IL 60612
| | - Bo Fernhall
- Integrative Physiology Laboratory, University of Illinois at Chicago, Chicago, IL 60612
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Manrique-Acevedo C, Soares RN, Smith JA, Park LK, Burr K, Ramirez-Perez FI, McMillan NJ, Ferreira-Santos L, Sharma N, Olver TD, Emter CA, Parks EJ, Limberg JK, Martinez-Lemus LA, Padilla J. Impact of sex and diet-induced weight loss on vascular insulin sensitivity in type 2 diabetes. Am J Physiol Regul Integr Comp Physiol 2023; 324:R293-R304. [PMID: 36622084 PMCID: PMC9942885 DOI: 10.1152/ajpregu.00249.2022] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 12/02/2022] [Accepted: 12/26/2022] [Indexed: 01/10/2023]
Abstract
Vascular insulin resistance, a major characteristic of obesity and type 2 diabetes (T2D), manifests with blunting of insulin-induced vasodilation. Although there is evidence that females are more whole body insulin sensitive than males in the healthy state, whether sex differences exist in vascular insulin sensitivity is unclear. Also uncertain is whether weight loss can reestablish vascular insulin sensitivity in T2D. The purpose of this investigation was to 1) establish if sex differences in vasodilatory responses to insulin exist in absence of disease, 2) determine whether female sex affords protection against the development of vascular insulin resistance with long-term overnutrition and obesity, and 3) examine if diet-induced weight loss can restore vascular insulin sensitivity in men and women with T2D. First, we show in healthy mice and humans that sex does not influence insulin-induced femoral artery dilation and insulin-stimulated leg blood flow, respectively. Second, we provide evidence that female mice are protected against impairments in insulin-induced dilation caused by overnutrition-induced obesity. Third, we show that men and women exhibit comparable levels of vascular insulin resistance when T2D develops but that diet-induced weight loss is effective at improving insulin-stimulated leg blood flow, particularly in women. Finally, we provide indirect evidence that these beneficial effects of weight loss may be mediated by a reduction in endothelin-1. In aggregate, the present data indicate that female sex confers protection against obesity-induced vascular insulin resistance and provide supportive evidence that, in women with T2D, vascular insulin resistance can be remediated with diet-induced weight loss.
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Affiliation(s)
- Camila Manrique-Acevedo
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
- NextGen Precision Health, University of Missouri, Columbia, Missouri
- Research Service, Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri
| | - Rogerio N Soares
- NextGen Precision Health, University of Missouri, Columbia, Missouri
| | - James A Smith
- NextGen Precision Health, University of Missouri, Columbia, Missouri
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
| | - Lauren K Park
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
- Division of Cardiology, Department of Medicine, Washington University School of Medicine, Saint Louis, Missouri
| | - Katherine Burr
- NextGen Precision Health, University of Missouri, Columbia, Missouri
| | | | - Neil J McMillan
- NextGen Precision Health, University of Missouri, Columbia, Missouri
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
| | | | - Neekun Sharma
- NextGen Precision Health, University of Missouri, Columbia, Missouri
- Department of Medicine, Center for Precision Medicine, University of Missouri, Columbia, Missouri
| | - T Dylan Olver
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri
- Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Craig A Emter
- NextGen Precision Health, University of Missouri, Columbia, Missouri
- Department of Biomedical Sciences, University of Missouri, Columbia, Missouri
| | - Elizabeth J Parks
- NextGen Precision Health, University of Missouri, Columbia, Missouri
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Missouri, Columbia, Missouri
| | - Jacqueline K Limberg
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
| | - Luis A Martinez-Lemus
- NextGen Precision Health, University of Missouri, Columbia, Missouri
- Department of Medicine, Center for Precision Medicine, University of Missouri, Columbia, Missouri
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - Jaume Padilla
- NextGen Precision Health, University of Missouri, Columbia, Missouri
- Research Service, Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
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5
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Jurrissen TJ, Ramirez-Perez FI, Cabral-Amador FJ, Soares RN, Pettit-Mee RJ, Betancourt-Cortes EE, McMillan NJ, Sharma N, Rocha HNM, Fujie S, Morales-Quinones M, Lazo-Fernandez Y, Butler AA, Banerjee S, Sacks HS, Ibdah JA, Parks EJ, Rector RS, Manrique-Acevedo C, Martinez-Lemus LA, Padilla J. Role of adropin in arterial stiffening associated with obesity and type 2 diabetes. Am J Physiol Heart Circ Physiol 2022; 323:H879-H891. [PMID: 36083795 PMCID: PMC9602697 DOI: 10.1152/ajpheart.00385.2022] [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: 07/28/2022] [Revised: 09/06/2022] [Accepted: 09/06/2022] [Indexed: 01/16/2023]
Abstract
Adropin is a peptide largely secreted by the liver and known to regulate energy homeostasis; however, it also exerts cardiovascular effects. Herein, we tested the hypothesis that low circulating levels of adropin in obesity and type 2 diabetes (T2D) contribute to arterial stiffening. In support of this hypothesis, we report that obesity and T2D are associated with reduced levels of adropin (in liver and plasma) and increased arterial stiffness in mice and humans. Establishing causation, we show that mesenteric arteries from adropin knockout mice are also stiffer, relative to arteries from wild-type counterparts, thus recapitulating the stiffening phenotype observed in T2D db/db mice. Given the above, we performed a set of follow-up experiments, in which we found that 1) exposure of endothelial cells or isolated mesenteric arteries from db/db mice to adropin reduces filamentous actin (F-actin) stress fibers and stiffness, 2) adropin-induced reduction of F-actin and stiffness in endothelial cells and db/db mesenteric arteries is abrogated by inhibition of nitric oxide (NO) synthase, and 3) stimulation of smooth muscle cells or db/db mesenteric arteries with a NO mimetic reduces stiffness. Lastly, we demonstrated that in vivo treatment of db/db mice with adropin for 4 wk reduces stiffness in mesenteric arteries. Collectively, these findings indicate that adropin can regulate arterial stiffness, likely via endothelium-derived NO, and thus support the notion that "hypoadropinemia" should be considered as a putative target for the prevention and treatment of arterial stiffening in obesity and T2D.NEW & NOTEWORTHY Arterial stiffening, a characteristic feature of obesity and type 2 diabetes (T2D), contributes to the development and progression of cardiovascular diseases. Herein we establish that adropin is decreased in obese and T2D models and furthermore provide evidence that reduced adropin may directly contribute to arterial stiffening. Collectively, findings from this work support the notion that "hypoadropinemia" should be considered as a putative target for the prevention and treatment of arterial stiffening in obesity and T2D.
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Affiliation(s)
- Thomas J Jurrissen
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
| | | | | | - Rogerio N Soares
- Department of Medicine, Center for Precision Medicine, University of Missouri, Columbia, Missouri
| | - Ryan J Pettit-Mee
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
| | | | - Neil J McMillan
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
| | - Neekun Sharma
- Department of Medicine, Center for Precision Medicine, University of Missouri, Columbia, Missouri
| | - Helena N M Rocha
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
- Department of Physiology and Pharmacology, Fluminense Federal University, Niteroi, Brazil
| | - Shumpei Fujie
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
- Faculty of Sport and Health Science, Ritsumeikan University, Shiga, Japan
| | - Mariana Morales-Quinones
- Department of Medicine, Center for Precision Medicine, University of Missouri, Columbia, Missouri
| | - Yoskaly Lazo-Fernandez
- Department of Medicine, Center for Precision Medicine, University of Missouri, Columbia, Missouri
| | - Andrew A Butler
- Department of Pharmacology and Physiological Sciences, Saint Louis University, Saint Louis, Missouri
| | - Subhashis Banerjee
- Department of Pharmacology and Physiological Sciences, Saint Louis University, Saint Louis, Missouri
| | - Harold S Sacks
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, California
| | - Jamal A Ibdah
- Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Missouri, Columbia, Missouri
| | - Elizabeth J Parks
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Missouri, Columbia, Missouri
| | - R Scott Rector
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
- Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Missouri, Columbia, Missouri
| | - Camila Manrique-Acevedo
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
- Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
| | - Luis A Martinez-Lemus
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
- Department of Medicine, Center for Precision Medicine, University of Missouri, Columbia, Missouri
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - Jaume Padilla
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
- Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri
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6
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Smith JA, Soares RN, McMillan NJ, Jurrissen TJ, Martinez-Lemus LA, Padilla J, Manrique-Acevedo C. Young Women Are Protected Against Vascular Insulin Resistance Induced by Adoption of an Obesogenic Lifestyle. Endocrinology 2022; 163:bqac137. [PMID: 35974454 PMCID: PMC10233280 DOI: 10.1210/endocr/bqac137] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Indexed: 01/16/2023]
Abstract
Vascular insulin resistance is a feature of obesity and type 2 diabetes that contributes to the genesis of vascular disease and glycemic dysregulation. Data from preclinical models indicate that vascular insulin resistance is an early event in the disease course, preceding the development of insulin resistance in metabolically active tissues. Whether this is translatable to humans requires further investigation. To this end, we examined if vascular insulin resistance develops when young healthy individuals (n = 18 men, n = 18 women) transition to an obesogenic lifestyle that would ultimately cause whole-body insulin resistance. Specifically, we hypothesized that short-term (10 days) exposure to reduced ambulatory activity (from >10 000 to <5000 steps/day) and increased consumption of sugar-sweetened beverages (6 cans/day) would be sufficient to prompt vascular insulin resistance. Furthermore, given that incidence of insulin resistance and cardiovascular disease is lower in premenopausal women than in men, we postulated that young females would be protected against vascular insulin resistance. Consistent with this hypothesis, we report that after reduced ambulation and increased ingestion of carbonated beverages high in sugar, young healthy men, but not women, exhibited a blunted leg blood flow response to insulin and suppressed skeletal muscle microvascular perfusion. These findings were associated with a decrease in plasma adropin and nitrite concentrations. This is the first evidence in humans that vascular insulin resistance can be provoked by short-term adverse lifestyle changes. It is also the first documentation of a sexual dimorphism in the development of vascular insulin resistance in association with changes in adropin levels.
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Affiliation(s)
- James A Smith
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA
| | - Rogerio N Soares
- Department of Medicine, University of Missouri, Columbia, MO, USA
| | - Neil J McMillan
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA
| | - Thomas J Jurrissen
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA
| | - Luis A Martinez-Lemus
- Department of Medicine, University of Missouri, Columbia, MO, USA
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO, USA
| | - Jaume Padilla
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA
- Harry S. Truman Memorial Veterans’ Hospital, Columbia, MO, USA
| | - Camila Manrique-Acevedo
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA
- Harry S. Truman Memorial Veterans’ Hospital, Columbia, MO, USA
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, MO 65212, USA
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7
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McMillan NJ, Soares RN, Harper JL, Shariffi B, Moreno-Cabanas A, Curry TB, Manrique-Acevedo C, Padilla J, Limberg JK. Increased Muscle Sympathetic Nerve Activity with Acute Hyperinsulinemia: Role of Insulin-stimulated Peripheral Vasodilation and the Response of the Arterial Baroreflex. FASEB J 2022. [PMID: 35554402 DOI: 10.1096/fasebj.2022.36.s1.r4106] [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: 11/11/2022]
Abstract
OBJECTIVE Hyperinsulinemia elicits an increase sympathetic nervous system activity directed toward skeletal muscle (muscle sympathetic nerve activity, MSNA). The insulin-mediated increase in MSNA is primarily attributed to its effect within the central nervous system. In addition to direct central effects, insulin also elicits peripheral vasodilation, which may further increase MSNA via arterial baroreflex-mediated mechanisms in order to maintain blood pressure (BP). Herein we examined the contribution of insulin-induced peripheral vasodilation and role for the arterial baroreflex in the MSNA response to hyperinsulinemia. We hypothesized that rescuing peripheral resistance with co-infusion of the vasoconstrictor phenylephrine would attenuate the MSNA response to hyperinsulinemia. We further hypothesized the insulin-mediated increase in MSNA would be recapitulated with another vasodilator (sodium nitroprusside, SNP). METHODS In 33 healthy adults (28M/5F, 28±1 yrs, BMI 25.0±0.5 kg/m2 ) MSNA (microneurography) and BP (Finometer/brachial catheter) were measured, and total peripheral resistance (TPR, ModelFlow) was calculated at rest and during intravenous insulin (n=20) or SNP (n=13) infusion. A subset of participants receiving insulin (n=7) were co-infused with phenylephrine. Spontaneous arterial baroreflex sensitivity was determined over 5-min at baseline and during pharmacological intervention(s). RESULTS Insulin infusion increased MSNA (p=0.05) and decreased TPR (p<0.05), with no effects on arterial baroreflex sensitivity or BP (p>0.05). Co-infusion with phenylephrine returned MSNA and TPR to baseline, with no effect on baroreflex sensitivity (p>0.05). Similar to insulin, SNP increased MSNA (p<0.01) and decreased TPR (p<0.05), with no effect on baroreflex sensitivity (p>0.05). CONCLUSIONS Present findings reveal that acute hyperinsulinemia increases MSNA without a change in arterial baroreflex sensitivity in healthy men and women. Insulin-mediated increases in MSNA are lost with co-infusion of phenylephrine and can be recapitulated with infusion of SNP. Results support a dynamic interplay between central and peripheral mechanisms during hyperinsulinemia to increase MSNA and maintain BP.
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Affiliation(s)
- Neil J McMillan
- Nutrition and Exercise Physiology, University of Missouri, Columbia, COLUMBIA, MO
| | - Rogerio N Soares
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, COLUMBIA, MO
| | - Jennifer L Harper
- Nutrition and Exercise Physiology, University of Missouri, Columbia, COLUMBIA, MO
| | - Brian Shariffi
- Nutrition and Exercise Physiology, University of Missouri, Columbia, COLUMBIA, MO
| | - Alfonso Moreno-Cabanas
- Nutrition and Exercise Physiology, University of Missouri, Columbia, COLUMBIA, MO.,University of Castilla-La Mancha, Toledo
| | - Timothy B Curry
- Department of Anesthesia and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Camila Manrique-Acevedo
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, COLUMBIA, MO.,University of Missouri, Columbia, Columbia, MO.,Research Services, Harry S. Truman Memorial Veterans Hospital, Columbia, MO
| | - Jaume Padilla
- Nutrition and Exercise Physiology, University of Missouri, Columbia, COLUMBIA, MO.,Dalton Cardiovascular Research Center, University of Missouri, Columbia, COLUMBIA, MO
| | - Jacqueline K Limberg
- Nutrition and Exercise Physiology, University of Missouri, Columbia, COLUMBIA, MO.,Department of Anesthesia and Perioperative Medicine, Mayo Clinic, Rochester, MN
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Jurrissen TJ, Ramirez‐Perez FI, Cabral FJ, McMillan NJ, Fujie SJ, Butler AA, Banerjee S, Sacks HS, Manrique‐Acevedo C, Martinez‐Lemus LA, Padilla J. Role of adropin in reducing arterial stiffness in type 2 diabetes. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r3211] [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)
- Thomas J. Jurrissen
- University of MissouriColumbiaMO
- Dalton Cardiovascular Research CenterUniversity of MissouriColumbiaMO
| | | | | | - Neil J. McMillan
- Dalton Cardiovascular Research CenterUniversity of MissouriColumbiaMO
- Nutrition and Exercise PhysiologyUniversity of MissouriColumbiaMO
| | - Shumpei J. Fujie
- Dalton Cardiovascular Research CenterUniversity of MissouriColumbiaMO
- Sport and Health ScienceUniversity of MissouriColumbiaMO
| | - Andrew A. Butler
- Pharmacology and Physiological SciencesSaint Louis UniversitySt. LouisMO
| | | | | | | | - Luis A. Martinez‐Lemus
- Dalton Cardiovascular Research CenterColumbiaMO
- Department of MedicineDalton Cardiovascular Research CenterColumbiaMO
- Medical Pharmacology and PhysiologyDalton Cardiovascular Research CenterColumbiaMO
| | - Jaume Padilla
- Dalton Cardiovascular Research CenterUniversity of MissouriColumbiaMO
- Nutrition and Exercise PhysiologyUniversity of MissouriColumbiaMO
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Shariffi B, Lloyd IN, Wagner J, Harper JL, McMillan NJ, Smith JA, Manrique‐Acevedo C, Padilla J, Limberg JK. Effect of Hyperinsulinemia on Cerebral Autoregulation and Myogenic Control of Cerebral Blood Flow in Healthy Young Adults. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.r4263] [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)
- Brian Shariffi
- Nutrition and Exercise PhysiologyUniversity of MissouriColumbiaMO
| | - Iman N. Lloyd
- Nutrition and Exercise PhysiologyUniversity of MissouriColumbiaMO
| | - Jadee Wagner
- Nutrition and Exercise PhysiologyUniversity of MissouriColumbiaMO
| | | | - Neil J. McMillan
- Nutrition and Exercise PhysiologyUniversity of MissouriColumbiaMO
| | - James A. Smith
- Nutrition and Exercise PhysiologyUniversity of MissouriColumbiaMO
| | | | - Jaume Padilla
- Nutrition and Exercise PhysiologyUniversity of MissouriColumbiaMO
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McMillan NJ, Soares RN, Harper JL, Shariffi B, Moreno-Cabañas A, Curry TB, Manrique-Acevedo C, Padilla J, Limberg JK. Role of the arterial baroreflex in the sympathetic response to hyperinsulinemia in adult humans. Am J Physiol Endocrinol Metab 2022; 322:E355-E365. [PMID: 35187960 PMCID: PMC8993537 DOI: 10.1152/ajpendo.00391.2021] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/28/2022] [Accepted: 02/14/2022] [Indexed: 11/22/2022]
Abstract
Muscle sympathetic nerve activity (MSNA) increases during hyperinsulinemia, primarily attributed to central nervous system effects. Whether peripheral vasodilation induced by insulin further contributes to increased MSNA via arterial baroreflex-mediated mechanisms requires further investigation. Accordingly, we examined baroreflex modulation of the MSNA response to hyperinsulinemia. We hypothesized that rescuing peripheral resistance with coinfusion of the vasoconstrictor phenylephrine would attenuate the MSNA response to hyperinsulinemia. We further hypothesized that the insulin-mediated increase in MSNA would be recapitulated with another vasodilator (sodium nitroprusside, SNP). In 33 young healthy adults (28 M/5F), MSNA (microneurography) and arterial blood pressure (BP, Finometer/brachial catheter) were measured, and total peripheral resistance (TPR, ModelFlow) and baroreflex sensitivity were calculated at rest and during intravenous infusion of insulin (n = 20) or SNP (n = 13). A subset of participants receiving insulin (n = 7) was coinfused with phenylephrine. Insulin infusion decreased TPR (P = 0.01) and increased MSNA (P < 0.01), with no effect on arterial baroreflex sensitivity or BP (P > 0.05). Coinfusion with phenylephrine returned TPR and MSNA to baseline, with no effect on arterial baroreflex sensitivity (P > 0.05). Similar to insulin, SNP decreased TPR (P < 0.02) and increased MSNA (P < 0.01), with no effect on arterial baroreflex sensitivity (P > 0.12). Acute hyperinsulinemia shifts the baroreflex stimulus-response curve to higher MSNA without changing sensitivity, likely due to insulin's peripheral vasodilatory effects. Results show that peripheral vasodilation induced by insulin contributes to increased MSNA during hyperinsulinemia.NEW & NOTEWORTHY We hypothesized that elevation in muscle sympathetic nervous system activity (MSNA) during hyperinsulinemia is mediated by its peripheral vasodilator effect on the arterial baroreflex. Using three separate protocols in humans, we observed increases in both MSNA and cardiac output during hyperinsulinemia, which we attributed to the baroreflex response to peripheral vasodilation induced by insulin. Results show that peripheral vasodilation induced by insulin contributes to increased MSNA during hyperinsulinemia.
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Affiliation(s)
- Neil J McMillan
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
| | - Rogerio N Soares
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
| | - Jennifer L Harper
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
| | - Brian Shariffi
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
| | - Alfonso Moreno-Cabañas
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
- Exercise Physiology Lab at Toledo, University of Castilla-La Mancha, Toledo, Spain
| | - Timothy B Curry
- Department of Anesthesia and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota
| | - Camila Manrique-Acevedo
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
- Research Services, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri
| | - Jaume Padilla
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
| | - Jacqueline K Limberg
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
- Department of Anesthesia and Perioperative Medicine, Mayo Clinic, Rochester, Minnesota
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
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McMillan NJ, Schroeder EC, Lefferts WK, Hilgenkamp TI, Fernhall B. Influence Of Acute Inflammation On Central Hemodynamics During A Mild Sympathoexcitatory Stimulus. Med Sci Sports Exerc 2019. [DOI: 10.1249/01.mss.0000562498.84259.db] [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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Abstract
The effects of certain chemical additives at maintaining a high level of activity in protein constructs during storage is investigated. We use a semiparametric regression technique to model the effects of the additives on protein activity. The model is extended to handle categorical explanatory variables. On the basis of the available data, the important factors are estimated to be buffer, detergent, protein concentration, and storage temperature. The relationships among protein activity and these factors appear to be moderately nonlinear with strong interaction effects. These features are revealed in a data-adaptive way by the semi parametric model, without explicit modeling of the nonlinearities or interactions. We use cross-validation to assess the fit of our model. The protein activity response appears to be extremely erratic. We recommend several sets of storage conditions and that further design points be chosen in regions around these estimated optima.
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Affiliation(s)
- N J McMillan
- Battelle Memorial Institute, Columbus, Ohio 43201, USA
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