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Karnik SJ, Margetts TJ, Wang HS, Movila A, Oblak AL, Fehrenbacher JC, Kacena MA, Plotkin LI. Mind the Gap: Unraveling the Intricate Dance Between Alzheimer's Disease and Related Dementias and Bone Health. Curr Osteoporos Rep 2024; 22:165-176. [PMID: 38285083 PMCID: PMC10912190 DOI: 10.1007/s11914-023-00847-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/19/2023] [Indexed: 01/30/2024]
Abstract
PURPOSE OF REVIEW This review examines the linked pathophysiology of Alzheimer's disease/related dementia (AD/ADRD) and bone disorders like osteoporosis. The emphasis is on "inflammaging"-a low-level inflammation common to both, and its implications in an aging population. RECENT FINDINGS Aging intensifies both ADRD and bone deterioration. Notably, ADRD patients have a heightened fracture risk, impacting morbidity and mortality, though it is uncertain if fractures worsen ADRD. Therapeutically, agents targeting inflammation pathways, especially Nuclear factor kappa-light-chain-enhancer of activated B cells (NF-kB) and TNF-α, appear beneficial for both conditions. Additionally, treatments like Sirtuin 1 (SIRT-1), known for anti-inflammatory and neuroprotective properties, are gaining attention. The interconnectedness of AD/ADRD and bone health necessitates a unified treatment approach. By addressing shared mechanisms, we can potentially transform therapeutic strategies, enriching our understanding and refining care in our aging society. This review article is part of a series of multiple manuscripts designed to determine the utility of using artificial intelligence for writing scientific reviews.
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Affiliation(s)
- Sonali J Karnik
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Tyler J Margetts
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Hannah S Wang
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Alexandru Movila
- Department of Biomedical Sciences and Comprehensive Care, Indiana University School of Dentistry, Indianapolis, IN, 46202, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Adrian L Oblak
- Department of Radiology & Imaging Sciences, Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
- Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Jill C Fehrenbacher
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
- Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Melissa A Kacena
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA.
- Richard L. Roudebush VA Medical Center, Indianapolis, IN, 46202, USA.
| | - Lilian I Plotkin
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA.
- Richard L. Roudebush VA Medical Center, Indianapolis, IN, 46202, USA.
- Department of Anatomy, Cell Biology & Physiology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
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Alanazi WA, Alharbi T, El-Nagar DM, Albogami AM, Alswayyed M. Dapagliflozin Mitigates Hypotension in Lipopolysaccharide-Induced Acute Inflammation Independent of Glycemia Level. Pharmaceutics 2023; 15:1683. [PMID: 37376131 DOI: 10.3390/pharmaceutics15061683] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/31/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
Sodium-glucose cotransporter-2 (SGLT2) inhibitors have been suggested to have anti-inflammatory properties in diabetes. The goal of this study was to evaluate the role of the SGLT2 inhibitor dapagliflozin (DAPA) in the attenuation of lipopolysaccharide (LPS)-induced hypotension. Male Wistar albino rats were divided into normal and diabetic groups and received DAPA (1 mg/kg/day) for two weeks followed by a single dose of 10 mg/kg LPS. Blood pressure was recorded throughout the study and the circulatory levels of cytokines were assessed using a multiplex array, while the aortas were harvested for analysis. DAPA attenuated the vasodilation and hypotension caused by LPS. Mean arterial pressure (MAP) was preserved in the normal and diabetic DAPA-treated septic groups (MAP = 83.17 ± 5.27, 98.43 ± 5.57 mmHg) compared to the vehicle-treated septic groups (MAP = 65.60 ± 3.31, 68.21 ± 5.88 mmHg). Most of the cytokines induced by LPS were decreased in the DAPA-treated septic groups. In the aorta, the inducible nitric oxide synthase-derived nitric oxide had lower expression in the DAPA-treated rats. In contrast, the expression of α-smooth muscle actin, a marker of the vessel's contractile state, was higher in the DAPA-treated rats in comparison with non-treated septic rats. These findings revealed that the protective role of DAPA against LPS-induced hypotension is likely to be glucose-lowering independent, as was observed in the non-diabetic septic group. Taken together, the results show that DAPA has a potential effect in the prevention of the hemodynamic disturbances of sepsis regardless of glycemia levels.
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Affiliation(s)
- Wael A Alanazi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Turki Alharbi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Doaa M El-Nagar
- Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Abdullah M Albogami
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohammed Alswayyed
- Department of Pathology, College of Medicine, King Saud University, Riyadh 11451, Saudi Arabia
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de Jager L, Vidigal CB, de Campos BH, Reginato GS, Fernandes LM, Ariza D, Higashi-Mckeown CM, Bertozzi MM, Rasquel de Oliveira FS, Verri Junior WA, Ceravolo GS, Crestani CC, Pinge-Filho P, Martins-Pinge MC. Role of the iNOS isoform in the cardiovascular dysfunctions of male rats with 6-OHDA-induced Parkinsonism. Nitric Oxide 2023; 134-135:49-60. [PMID: 37054808 DOI: 10.1016/j.niox.2023.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 04/05/2023] [Accepted: 04/10/2023] [Indexed: 04/15/2023]
Abstract
INTRODUCTION Available studies have shown the involvement of nitric oxide (NO) in the processes that lead to neurodegeneration in PD. Also, the use of inhibitors of the inducible isoform of NO-synthase (iNOS) promotes neuroprotection and attenuates dopamine (DA) loss in experimental models of Parkinsonism. In addition, NO also appears to be involved in cardiovascular changes in 6-hydroxydopamine (6-OHDA)-induced Parkinsonism. The current study aimed to evaluate the effects of iNOS inhibition on cardiovascular and autonomic function in animals that were subjected to Parkinsonism by the administration of 6-OHDA. MATERIALS AND METHODS The animals underwent stereotaxic surgery for bilateral microinfusion of the neurotoxin 6-OHDA (6 mg/mL in 0.2% ascorbic acid in sterile saline solution) or vehicle solution for the Sham group. From the day of stereotaxis until the day of femoral artery catheterization, the animals were treated with the iNOS inhibitor, S-methylisothiourea (SMT; 10 mg/kg; i.p.) or saline solution (0.9%; i.p.) for 7 days. The animals were divided into four groups: Sham-Saline, Sham-SMT, 6-OHDA-Saline, and 6-OHDA-SMT. Subsequent analyses were performed on these four groups. After 6 days, they underwent catheterization of the femoral artery, and 24 hours later, mean arterial pressure (MAP) and heart rate (HR) were recorded. Another group of animals (the 6-OHDA and Sham groups) was assessed for aortic vascular reactivity after 7 days of bilateral infusion of 6-OHDA or vehicle, in which cumulative concentration-effect curves (CCEC) were made for phenylephrine (Phenyl), acetylcholine and sodium nitroprusside (NPS). Also, CCEC in the presence of Nw-nitro-arginine-methyl-ester (l-NAME) (10-5 M), SMT (10-6 M), and indomethacin (10-5M) blockers were made. RESULTS The effectiveness of the 6-OHDA lesion was confirmed with the reduction of DA in 6-OHDA animals. However, treatment with SMT could not reverse the loss of DA. Concerning the baseline parameters, SBP and MAP values were lower in 6-OHDA animals compared to their Sham control, with no effect of treatment with SMT. In the analysis of SBP variability, a decrease in variance, the VLFabs component, and the LFabs component were observed in the 6-OHDA groups when compared to their controls, regardless of treatment with SMT. It was also observed that intravenous injections of SMT resulted in an increase in BP and a decrease in HR. However, the response was not different between the Sham and 6-OHDA groups. In vascular function, there was a hyporeactivity to Phenyl in the 6-OHDA group, and when investigating the mechanisms of this hyporeactivity, it was seen that the Rmax to Phenyl increased with incubation with SMT, indicating that iNOS could be involved in the vascular hyporeactivity of animals with Parkinsonism. CONCLUSION Thus, the set of results presented in this study suggests that part of the cardiovascular dysfunction in animals subjected to 6-OHDA Parkinsonism may be peripheral and involve the participation of endothelial iNOS.
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Affiliation(s)
- Lorena de Jager
- Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina - UEL, Londrina, PR, Brazil
| | - Camila Borecki Vidigal
- Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina - UEL, Londrina, PR, Brazil
| | - Blenda Hyedra de Campos
- Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina - UEL, Londrina, PR, Brazil
| | - Gabriela Souza Reginato
- Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina - UEL, Londrina, PR, Brazil
| | - Lorena Maria Fernandes
- Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina - UEL, Londrina, PR, Brazil
| | - Deborah Ariza
- Departamento de Ciências Fisiológicas, Universidade Estadual de Londrina - UEL, Londrina, PR, Brazil
| | | | - Mariana Marques Bertozzi
- Departamento de Ciências Patológicas, Universidade Estadual de Londrina - UEL, Londrina, PR, Brazil
| | | | | | | | - Carlos César Crestani
- Faculdade de Ciências Farmacêuticas de Araraquara, Departamento de Princípios Ativos Naturais e Toxicologia, Universidade Estadual Paulista, UNESP Araraquara, Brazil
| | - Phileno Pinge-Filho
- Departamento de Ciências Patológicas, Universidade Estadual de Londrina - UEL, Londrina, PR, Brazil
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Kaya ST, Agan K, Fulden-Agan A, Agyar-Yoldas P, Ozarslan TO, Kekecoglu M, Kaya A. Protective effect of propolis on myocardial ischemia/reperfusion injury in males and ovariectomized females but not in intact females. J Food Biochem 2022; 46:e14109. [PMID: 35142377 DOI: 10.1111/jfbc.14109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 12/12/2021] [Accepted: 01/22/2022] [Indexed: 11/30/2022]
Abstract
The aim of this study is to investigate the effect of propolis, which may have estrogenic effects, on myocardial ischemia/reperfusion (mI/R) injury not only in male rats but also in intact and ovariectomized (ovx) female rats. Six groups were formed: untreated males (n = 8), treated males (n = 9), untreated intact females (n = 9), treated intact females (n = 10), untreated ovx females (n = 10), and treated ovx females (n = 8). An alcoholic extract of a single dose of propolis (200 mg/kg) was administered orally daily for 14 days. Thirty minutes of ischemia and 120 min of reperfusion were performed. Blood pressure, heart rate, arrhythmias (ventricular premature contraction [VPC], ventricular tachycardia [VT], ventricular fibrillation [VF]), and myocardial infarct size were evaluated. Total antioxidant status (TAS), total oxidant status (TOS), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), and 17 beta-estradiol (E2) were measured. The untreated females showed more resistance to mI/R injury than the untreated males, as evidenced by lower duration, incidence, and score of arrhythmias, and smaller infarct size (p < .05). After ovx, this resistance disappeared. Propolis improved these values in treated males and treated ovx females (p < .05). Propolis increased TAS in treated males and decreased TOS in treated ovx females as well as elevated SOD in all treated groups (p < .05). Propolis decreased E2 level in treated intact females; however, it increased E2 level in treated ovx females (p < .05). The results revealed that propolis could protect the heart against mI/R injury in males and ovx females. PRACTICAL APPLICATIONS: It is known that the female heart has an increased sensitivity to myocardial ischemia/reperfusion (mI/R) injury due to estrogen deficiency and/or estrogen deprivation following menopause or surgical removal of the ovaries. Propolis has the potential to mimic estrogen under physiological and pathophysiological conditions, as well as its antioxidant property. The results indicated that propolis decreased myocardial infarct size, arrhythmia score, arrhythmia duration, and incidence in ovariectomized female rats and male rats. In addition, the present results demonstrated that an alcoholic extract of propolis as a natural product can effectively maintain the resistance of female heart to mI/R injury after estrogen deficiency.
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Affiliation(s)
- Salih Tunc Kaya
- Faculty of Arts and Science, Department of Biology, Duzce University, Duzce, Turkey
| | - Kagan Agan
- Coordination Unit of Healthy and Environmental, Duzce University, Duzce, Turkey
| | - Aydan Fulden-Agan
- Beekeeping Research, Development and Application Centre, Duzce University, Duzce, Turkey
| | - Pınar Agyar-Yoldas
- Coordination Unit of Healthy and Environmental, Duzce University, Duzce, Turkey
| | - Talat Ogulcan Ozarslan
- Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - Meral Kekecoglu
- Faculty of Arts and Science, Department of Biology, Duzce University, Duzce, Turkey.,Beekeeping Research, Development and Application Centre, Duzce University, Duzce, Turkey
| | - Adnan Kaya
- Faculty of Medicine, Department of Internal Medicine, Cardiology Section, Duzce University, Duzce, Turkey
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Rouver WDN, Ferreira CRS, Delgado NTB, Santos RLD. Surgically induced deficiency of sex hormones modulates coronary vasodilation by estradiol in hypertension. J Basic Clin Physiol Pharmacol 2020; 32:215-223. [PMID: 34005843 DOI: 10.1515/jbcpp-2020-0042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 10/30/2020] [Indexed: 11/15/2022]
Abstract
OBJECTIVES The effect of oestrogen in hormonal dysfunction is not clear, especially in the coronary vascular bed. This study aimed at estradiol action (E2) in the coronary vascular bed from sham-operated and gonadectomized female and male spontaneously hypertensive rats (SHRs). METHODS Male and female SHRs had their mean arterial pressure (MAP) and baseline coronary perfusion pressure (CPP) determined. The effects of E2 (10 μM) were evaluated in isolated hearts by in bolus infusion before and after endothelium denudation (0.25 μM sodium deoxycholate) or perfusion with 100 μM NG-nitro-l-arginine methyl ester (L-NAME), 2.8 μM indomethacin, 0.75 μM clotrimazole, L-NAME after endothelium denudation, L-NAME plus indomethacin, or 4 mM tetraethylammonium (TEA). RESULTS MAP was higher in males than in females, with gonadectomy increasing in females and reducing in males. CPP was higher in female group, remaining unaltered after gonadectomy. E2-induced vasorelaxation was observed in all groups, with no differences having been found between sexes even after gonadectomy. Perfusion with TEA, L-NAME, L-NAME plus indomethacin, and L-NAME after endothelium removal attenuated the relaxing response in all groups. Clotrimazole inhibited vasorelaxation only in female groups, and indomethacin did so only in gonadectomized groups. Endothelium participation was confirmed in female groups and in the gonadectomized male group. CONCLUSIONS Our results indicated that the vasodilator effect of E2 was mediated by an indirect mechanism - via endothelium - as well as by direct action - via vascular smooth muscle - in both groups. The characterization of these mechanisms in coronary arteries might shed light on the functional basis of hormonal dysfunction symptoms in hypertension.
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Affiliation(s)
- Wender do Nascimento Rouver
- Department of Physiological Science, Federal University of Espirito Santo - UFES, Vitoria, Espirito Santo, Brazil
| | | | | | - Roger Lyrio Dos Santos
- Department of Physiological Science, Federal University of Espirito Santo - UFES, Vitoria, Espirito Santo, Brazil
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Klein RM, Rigobello C, Vidigal CB, Moura KF, Barbosa DS, Gerardin DCC, Ceravolo GS, Moreira EG. Gestational exposure to paracetamol in rats induces neurofunctional alterations in the progeny. Neurotoxicol Teratol 2020; 77:106838. [DOI: 10.1016/j.ntt.2019.106838] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 09/27/2019] [Accepted: 10/15/2019] [Indexed: 02/08/2023]
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