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Popovic N, Ždralević M, Vujosevic S, Radunović M, Adžić Zečević A, Rovčanin Dragović I, Vukčević B, Popovic T, Radulović L, Vuković T, Eraković J, Lazović R, Radunović M. Retinal microvascular complexity as a putative biomarker of biological age: a pilot study. Biogerontology 2023; 24:971-985. [PMID: 37572202 DOI: 10.1007/s10522-023-10057-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 07/27/2023] [Indexed: 08/14/2023]
Abstract
Physiological changes associated with aging increase the risk for the development of age-related diseases. This increase is non-specific to the type of age-related disease, although each disease develops through a unique pathophysiologic mechanism. People who age at a faster rate develop age-related diseases earlier in their life. They have an older "biological age" compared to their "chronological age". Early detection of individuals with accelerated aging would allow timely intervention to postpone the onset of age-related diseases. This would increase their life expectancy and their length of good quality life. The goal of this study was to investigate whether retinal microvascular complexity could be used as a biomarker of biological age. Retinal images of 68 participants ages ranging from 19 to 82 years were collected in an observational cross-sectional study. Twenty of the old participants had age-related diseases such as hypertension, type 2 diabetes, and/or Alzheimer's dementia. The rest of the participants were healthy. Retinal images were captured by a hand-held, non-mydriatic fundus camera and quantification of the microvascular complexity was performed by using Sholl's, box-counting fractal, and lacunarity analysis. In the healthy subjects, increasing chronological age was associated with lower retinal microvascular complexity measured by Sholl's analysis. Decreased box-counting fractal dimension was present in old patients, and this decrease was 2.1 times faster in participants who had age-related diseases (p = 0.047). Retinal microvascular complexity could be a promising new biomarker of biological age. The data from this study is the first of this kind collected in Montenegro. It is freely available for use.
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Affiliation(s)
- Natasa Popovic
- Faculty of Medicine, University of Montenegro, Podgorica, Montenegro.
| | - Maša Ždralević
- Institute for Advanced Studies, University of Montenegro, Podgorica, Montenegro
| | - Stela Vujosevic
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy
- Eye Clinic, IRCCS MultiMedica, Milan, Italy
| | | | - Antoaneta Adžić Zečević
- Faculty of Medicine, University of Montenegro, Podgorica, Montenegro
- Clinical Center of Montenegro, Podgorica, Montenegro
| | | | | | - Tomo Popovic
- Faculty for Information Systems and Technologies, University of Donja Gorica, Podgorica, Montenegro
| | - Ljiljana Radulović
- Faculty of Medicine, University of Montenegro, Podgorica, Montenegro
- Clinical Center of Montenegro, Podgorica, Montenegro
| | | | | | - Ranko Lazović
- Faculty of Medicine, University of Montenegro, Podgorica, Montenegro
- Clinical Center of Montenegro, Podgorica, Montenegro
| | - Miodrag Radunović
- Faculty of Medicine, University of Montenegro, Podgorica, Montenegro
- Clinical Center of Montenegro, Podgorica, Montenegro
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Damay VA, Setiawan, Lesmana R, Akbar MR, Lukito AA, Tarawan VM, Martha JW, Nugroho J, Sugiharto S. Aerobic Exercise versus Electronic Cigarette in Vascular Aging Process: First Histological Insight. Int J Vasc Med 2023; 2023:8874599. [PMID: 37533734 PMCID: PMC10393525 DOI: 10.1155/2023/8874599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 07/03/2023] [Accepted: 07/07/2023] [Indexed: 08/04/2023] Open
Abstract
Smoking is related to vascular aging. However, the hazardous effect of e-cigarette is often debatable, with limited studies available. In contrast, moderate-intensity aerobic exercise is well known to decrease aortic stiffness. We provide novel research to determine the effect of e-cigarette and aerobic moderate-intensity exercise on the aortic structure of Wistar rats. A total of 26 male Wistar rats (Rattus norvegicus) 8 weeks aged, 200-250 g b.w., were randomly divided into 4 groups, namely, K0 (normal rats), K1 (rats were given moderate-intensity aerobic exercise by animal treadmill 20 m/30 min), K2 (rats were given e-cigarette with 6 mg nicotine, 40% propylene glycol, and 60% vegetable glycerine 30 min for 5 days/week), and K3 (rats were given e-cigarette and moderate-intensity aerobic exercise). After exposure for 6 weeks, all animals were sacrificed to isolate the aorta for histopathological analysis with hematoxylin-eosin stain to evaluate the elastic fiber layer and intimal-medial thickness. The Verhoeff-Van Gieson staining was done for quantification elastic lamina fragmentation. Our study found that the e-cigarette group had the highest elastic lamina fragmentation among groups (8.14 ± 2.85). The exercise only group showed the lowest elastic lamina fragmentation (2.50 ± 1.87). Fragmentation in the e-cigarette and exercise group was higher than in the exercise only group (5.83 ± 0.753 vs. 2.50 ± 1.87, p = 0.002). There is a significant difference of NO serum between four groups. The result of post hoc analysis using LSD showed that there is a significant difference of NO serum between K0 and K2, K0 and K3, K1 and K2, and K1 and K3. Therefore, our research demonstrated that the most injury of aorta elastic lamina was in the group that was exposed to e-cigarette that leads to vascular aging while exercise is not yet proven to reverse this effect.
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Affiliation(s)
- Vito A. Damay
- Department of Cardiovascular Medicine, Universitas Pelita Harapan, Banten, Indonesia
| | - Setiawan
- Department of Biomedical Sciences, Universitas Padjadjaran, Bandung, Indonesia
| | - Ronny Lesmana
- Department of Biomedical Sciences, Universitas Padjadjaran, Bandung, Indonesia
| | - Muhammad Rizki Akbar
- Department of Cardiology and Vascular Medicine, Universitas Padjadjaran, Bandung, Indonesia
| | - Antonia Anna Lukito
- Department of Cardiovascular Medicine, Universitas Pelita Harapan, Banten, Indonesia
| | - Vita M. Tarawan
- Department of Biomedical Sciences, Universitas Padjadjaran, Bandung, Indonesia
| | - Januar W. Martha
- Department of Cardiology and Vascular Medicine, Universitas Padjadjaran, Bandung, Indonesia
| | - J. Nugroho
- Department of Cardiology and Vascular Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Sony Sugiharto
- Department of Anatomical Pathology, Universitas Tarumanegara, Jakarta, Indonesia
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Al-Neklawy AF, El-Nefiawy NE, Rady HY. Does oral ciprofloxacin affect the structure of thoracic aorta in adult and senile male albino rats? A clue to fluoroquinolones-induced risk of aortic dissection. Anat Cell Biol 2022; 55:79-91. [PMID: 35354674 PMCID: PMC8968223 DOI: 10.5115/acb.21.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 10/10/2021] [Accepted: 11/08/2021] [Indexed: 11/27/2022] Open
Abstract
In this study, the effect of oral ciprofloxacin on the structure of the thoracic aorta in rats was investigated. Twenty four male albino rats were divided into 4 groups (6 rats/group): group I (adult control), group II (adult rats treated with ciprofloxacin), group III (senile control), and group IV (senile rats treated with ciprofloxacin). Rats in groups II and IV received ciprofloxacin via oral gavage in a daily dose of 3.5 mg/kg/d for 14 days, while control rats received equivalent amount of distilled water used to dissolve the drug. After 2 weeks, all rats were sacrificed, thoracic aortae were dissected, and half of the specimens were processed for paraffin sections and examined by light microscopy. The other half of the specimens were prepared for scanning electron microscopy. Sections from rats treated with ciprofloxacin showed evident damaging effect on aortic wall particularly in (group IV). Aortic intima showed, focal desquamation of the lining epithelium. Tunica media exhibited loss of the normal concentric arrangement and degeneration of the smooth muscle cells. Immune staining for alpha smooth muscle actin showed muscle damage. Interestingly, some sections in (group IV) showed out-pouch (aneurysm like) of the aortic wall. There was dense collagen fibers deposition. Scanning electron microscopic observations of (group IV) revealed uneven intima, adherent blood cells and fibrin filaments to damaged intima, and out-pouch formation. It was concluded that oral ciprofloxacin caused deleterious structural changes in the thoracic aortic wall of rats explaining clinical observations of fluoroquinolones induced risk of aortic dissection and aneurysm.
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Affiliation(s)
- Ahmed Farid Al-Neklawy
- Department of Anatomy and Embryology, Faculty of Medicine, Ain Shams University, Cairo, Egypt.,Department of Physiological Sciences, Fakeeh College for Medical Sciences, Jeddah, Saudi Arabia
| | | | - Hagar Yousry Rady
- Department of Anatomy and Embryology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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Mikołajczyk K, Spyt D, Zielińska W, Żuryń A, Faisal I, Qamar M, Świniarski P, Grzanka A, Gagat M. The Important Role of Endothelium and Extracellular Vesicles in the Cellular Mechanism of Aortic Aneurysm Formation. Int J Mol Sci 2021; 22:ijms222313157. [PMID: 34884962 PMCID: PMC8658239 DOI: 10.3390/ijms222313157] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 11/29/2021] [Indexed: 12/12/2022] Open
Abstract
Homeostasis is a fundamental property of biological systems consisting of the ability to maintain a dynamic balance of the environment of biochemical processes. The action of endogenous and exogenous factors can lead to internal balance disorder, which results in the activation of the immune system and the development of inflammatory response. Inflammation determines the disturbances in the structure of the vessel wall, connected with the change in their diameter. These disorders consist of accumulation in the space between the endothelium and the muscle cells of low-density lipoproteins (LDL), resulting in the formation of fatty streaks narrowing the lumen and restricting the blood flow in the area behind the structure. The effect of inflammation may also be pathological dilatation of the vessel wall associated with the development of aneurysms. Described disease entities strongly correlate with the increased migration of immune cells. Recent scientific research indicates the secretion of specific vesicular structures during migration activated by the inflammation. The review focuses on the link between endothelial dysfunction and the inflammatory response and the impact of these processes on the development of disease entities potentially related to the secretion of extracellular vesicles (EVs).
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Affiliation(s)
- Klaudia Mikołajczyk
- Department of Histology and Embryology, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-092 Bydgoszcz, Poland; (K.M.); (D.S.); (W.Z.); (A.Ż.); (I.F.); (M.Q.); (A.G.)
| | - Dominika Spyt
- Department of Histology and Embryology, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-092 Bydgoszcz, Poland; (K.M.); (D.S.); (W.Z.); (A.Ż.); (I.F.); (M.Q.); (A.G.)
| | - Wioletta Zielińska
- Department of Histology and Embryology, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-092 Bydgoszcz, Poland; (K.M.); (D.S.); (W.Z.); (A.Ż.); (I.F.); (M.Q.); (A.G.)
| | - Agnieszka Żuryń
- Department of Histology and Embryology, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-092 Bydgoszcz, Poland; (K.M.); (D.S.); (W.Z.); (A.Ż.); (I.F.); (M.Q.); (A.G.)
| | - Inaz Faisal
- Department of Histology and Embryology, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-092 Bydgoszcz, Poland; (K.M.); (D.S.); (W.Z.); (A.Ż.); (I.F.); (M.Q.); (A.G.)
| | - Murtaz Qamar
- Department of Histology and Embryology, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-092 Bydgoszcz, Poland; (K.M.); (D.S.); (W.Z.); (A.Ż.); (I.F.); (M.Q.); (A.G.)
| | - Piotr Świniarski
- Department of Urology and Andrology, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-092 Bydgoszcz, Poland;
| | - Alina Grzanka
- Department of Histology and Embryology, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-092 Bydgoszcz, Poland; (K.M.); (D.S.); (W.Z.); (A.Ż.); (I.F.); (M.Q.); (A.G.)
| | - Maciej Gagat
- Department of Histology and Embryology, Faculty of Medicine, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, 85-092 Bydgoszcz, Poland; (K.M.); (D.S.); (W.Z.); (A.Ż.); (I.F.); (M.Q.); (A.G.)
- Correspondence:
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