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Gentscheva G, Nikolova K, Panayotova V, Peycheva K, Makedonski L, Slavov P, Radusheva P, Petrova P, Yotkovska I. Application of Arthrospira platensis for Medicinal Purposes and the Food Industry: A Review of the Literature. Life (Basel) 2023; 13:life13030845. [PMID: 36984000 PMCID: PMC10058336 DOI: 10.3390/life13030845] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 02/21/2023] [Accepted: 03/19/2023] [Indexed: 03/30/2023] Open
Abstract
Arthrospira platensis is a filamentous cyanobacterium of the class Cyanophyceae and is the most cultivated photosynthetic prokaryote. It is used in the pharmaceutical sector, medicine and the food industry. It has a rich micro- and macro-element composition, containing proteins, lipids, carbohydrates, essential amino acids, polyunsaturated fatty acids, minerals and raw fibers. It is a commonly used ingredient in food products and nutritional supplements. The wide range of biologically active components determines its diverse pharmacological properties (antioxidant, antidiabetic, antimicrobial, antineoplastic, antitumor, anti-inflammatory, photoprotective, antiviral, etc.). This review summarizes research related to the taxonomy, distribution and chemical composition of Arthrospira platensis as well as its potential application in the food and pharmaceutical industries. Attention is drawn to its various medical applications as an antidiabetic and antiobesity agent, with hepatoprotective, antitumor, antimicrobial and antiviral effects as well as regulatory effects on neurodegenerative diseases.
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Affiliation(s)
- Galia Gentscheva
- Department of Chemistry and Biochemistry, Medical University-Pleven, 5800 Pleven, Bulgaria
| | - Krastena Nikolova
- Department of Physics and Biophysics, Medical University-Varna, 9000 Varna, Bulgaria
| | | | - Katya Peycheva
- Department of Chemistry, Medical University-Varna, 9000 Varna, Bulgaria
| | | | - Pavlo Slavov
- Student of Medicine, Medical University-Varna, 9000 Varna, Bulgaria
| | - Poli Radusheva
- Department of Physics and Biophysics, Medical University-Varna, 9000 Varna, Bulgaria
| | - Petia Petrova
- Institute of Optical Materials and Technologies "Acad. J. Malinowski", Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Ina Yotkovska
- Department of Chemistry and Biochemistry, Medical University-Pleven, 5800 Pleven, Bulgaria
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Sharma R, Diwan B, Sharma A, Witkowski JM. Emerging cellular senescence-centric understanding of immunological aging and its potential modulation through dietary bioactive components. Biogerontology 2022; 23:699-729. [PMID: 36261747 PMCID: PMC9581456 DOI: 10.1007/s10522-022-09995-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 10/12/2022] [Indexed: 12/13/2022]
Abstract
Immunological aging is strongly associated with the observable deleterious effects of human aging. Our understanding of the causes, effects, and therapeutics of aging immune cells has long been considered within the sole purview of immunosenescence. However, it is being progressively realized that immunosenescence may not be the only determinant of immunological aging. The cellular senescence-centric theory of aging proposes a more fundamental and specific role of immune cells in regulating senescent cell (SC) burden in aging tissues that has augmented the notion of senescence immunotherapy. Now, in addition, several emerging studies are suggesting that cellular senescence itself may be prevalent in aging immune cells, and that senescent immune cells exhibiting characteristic markers of cellular senescence, similar to non-leucocyte cells, could be among the key drivers of various facets of physiological aging. The present review integrates the current knowledge related to immunosenescence and cellular senescence in immune cells per se, and aims at providing a cohesive overview of these two phenomena and their significance in immunity and aging. We present evidence and rationalize that understanding the extent and impact of cellular senescence in immune cells vis-à-vis immunosenescence is necessary for truly comprehending the notion of an 'aged immune cell'. In addition, we also discuss the emerging significance of dietary factors such as phytochemicals, probiotic bacteria, fatty acids, and micronutrients as possible modulators of immunosenescence and cellular senescence. Evidence and opportunities related to nutritional bioactive components and immunological aging have been deliberated to augment potential nutrition-oriented immunotherapy during aging.
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Affiliation(s)
- Rohit Sharma
- Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, India.
| | - Bhawna Diwan
- Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, India
| | - Anamika Sharma
- Department of Biological Sciences, National Institute of Pharmaceutical Education and Research, Hyderabad, 500037, India
| | - Jacek M Witkowski
- Department of Pathophysiology, Medical University of Gdańsk, Dębinki 7, 80-211, Gdańsk, Poland.
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Gadó K, Khodier M, Virág A, Domján G, Dörnyei G. Anemia of geriatric patients. Physiol Int 2022; 109:119-134. [DOI: 10.1556/2060.2022.00218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 02/14/2022] [Accepted: 02/22/2022] [Indexed: 11/19/2022]
Abstract
Abstract
Anemia is a common finding in the elderly. Approximately 10 percent of the elderly suffers from anemia. Anemia per se is an independent factor of mortality in older patients regardless its cause. Frailty is also frequent in geriatric patients. That means that there is a decreased reserve capacity to react to different stress factors including anemia. The frequent presence of heart failure and also impaired cerebrovascular circulation makes more difficult to tolerate anemia in older age.
Anemia is a symptom, finding and treating the underlying cause is also important.
Treatment always depends on clinical findings: the more severe the symptoms, the more important to treat them. Severity of anemia depends not only the underlying cause, degree of anemia, co-morbidities and frailty of the patients, but also the speed of its development. Sudden blood loss due to an accident is less well tolerated than the same degree of anemia due to B12 deficiency.
Main causes of anemia in the elderly include nutritional deficiencies, chronic diseases, tumors, and certain hematological malignancies such as chronic lymphocytic leukemia, multiple myeloma, myelodysplastic syndrome.
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Affiliation(s)
- Klara Gadó
- Department of Clinical Studies, Faculty of Health Sciences, Semmelweis University, Budapest, Hungary
- Department of Geriatrics and Center of Nursing Sciences, Faculty of Health Sciences, Semmelweis University, Budapest, Hungary
| | - Malaz Khodier
- Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Andrea Virág
- Department of Geriatrics and Center of Nursing Sciences, Faculty of Health Sciences, Semmelweis University, Budapest, Hungary
| | - Gyula Domján
- Department of Clinical Studies, Faculty of Health Sciences, Semmelweis University, Budapest, Hungary
| | - Gabriella Dörnyei
- Department of Morphology and Physiotherapy, Faculty of Health Sciences, Semmelweis University, Budapest, Hungary
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Aloke C, Uche Emelike C, Ajuka Obasi N, Nkemjika Ogbu P, Oswald Edeogu C, Godwin Uzomba C, Ekakitie O, Adewale Iyaniwura A, Okoro CC, Peter Okey B, Ginikachukwu Aninjoku G, Charles Ushahemba B. HPLC profiling and studies on Copaifera salikounda methanol leaf extract on phenylhydrazine-induced hematotoxicity and oxidative stress in rats. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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Prognostic relevance of normocytic anemia in elderly patients affected by cardiovascular disease. JOURNAL OF GERIATRIC CARDIOLOGY : JGC 2021; 18:654-662. [PMID: 34527031 PMCID: PMC8390933 DOI: 10.11909/j.issn.1671-5411.2021.08.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND Anemia associated with cardiovascular diseases (CVD) is a common condition in older persons. Prevalence and prognostic role of anemia were extensively studied in patients with myocardial infarction (MI) or congestive heart failure (CHF) whereas limited data were available on patients with atrial fibrillation (AF). This study was conducted to assess the clinical prevalence and prognostic relevance of anemia in elderly patients affected by AF and other CVDs. METHODS A total of 866 elderly patients (430 men and 436 women, age: 65-98 years, mean age: 85 ± 10 years) were enrolled. Among these patients, 267 patients had acute non-ST-segment elevation MI (NSTEMI), 176 patients had acute CHF, 194 patients had acute AF and 229 patients were aged-matched healthy persons (CTR). All parameters were measured at the hospital admission and cardiovascular mortality was assessed during twenty-four months of follow-up. RESULTS The prevalence of anemia was higher in NSTEMI, CHF and AF patients compared to CTR subjects (50% vs. 15%, P < 0.05), with normocytic anemia being the most prevalent type (90%). Adjusted mortality risk was higher in anemic patient versus non-anemic patient in all the groups of patients [NSTEMI: hazard ratio (HR) = 1.81, 95% CI: 1.06-2.13; CHF: HR = 2.49, 95% CI: 1.31-4.75; AF: HR = 1.98, 95% CI: 1.01-3.88]. Decreased hemoglobin levels ( P = 0.001) and high reticulocyte index (P = 0.023) were associated with higher mortality in CVD patients. CONCLUSIONS The significant associations between CVD and anemia and the prognostic relevance of anemia for elderly patients with CVD were confirmed in this study. The presence of anemia in AF patients is associated with a two-fold increased mortality risk compared with non-anemic AF patients. Low hemoglobin and high reticulocyte count independently predict mortality in elderly patients with CVD.
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Wang S, Hu S, Mao Y. The mechanisms of vascular aging. Aging Med (Milton) 2021; 4:153-158. [PMID: 34250433 PMCID: PMC8251869 DOI: 10.1002/agm2.12151] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/14/2021] [Accepted: 04/14/2021] [Indexed: 12/25/2022] Open
Abstract
Vascular senescence is one of the hotspots in current research. With global average life expectancy increasing, delaying or reducing aging and age-related diseases has become a pressing issue for improving quality of life. Vascular senescence is an independent risk factor for age-related cardiovascular diseases (CVD) and results in the deterioration of CVD. Nevertheless, the underlying mechanisms of the vascular senescence have not been expressly illustrated. In this review, we attempt to summarize the recent literature in the field and discuss the major mechanisms involved in vascular senescence. We also underline key molecular aspects of aging-associated vascular dysfunction in the attempt to highlight potential innovative therapeutic targets to delay the onset of age-related diseases.
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Affiliation(s)
- Shan Wang
- Department of Geriatric Medicine The Affiliated Hospital of Qingdao University Qingdao China
| | - Song Hu
- Department of Geriatric Medicine The Affiliated Hospital of Qingdao University Qingdao China
| | - Yongjun Mao
- Department of Geriatric Medicine The Affiliated Hospital of Qingdao University Qingdao China
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Lifelong Endurance Exercise as a Countermeasure Against Age-Related [Formula: see text] Decline: Physiological Overview and Insights from Masters Athletes. Sports Med 2021; 50:703-716. [PMID: 31873927 DOI: 10.1007/s40279-019-01252-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Maximum oxygen consumption ([Formula: see text]) is not only an indicator of endurance performance, but also a strong predictor of cardiovascular disease and mortality. This physiological parameter is known to decrease with aging. In turn, physical exercise might attenuate the rate of aging-related decline in [Formula: see text], which in light of the global population aging is of major clinical relevance, especially at advanced ages. In this narrative review, we summarize the evidence available from masters athletes about the role of lifelong endurance exercise on aging-related [Formula: see text] decline, with examples of the highest [Formula: see text] values reported in the scientific literature for athletes across different ages (e.g., 35 ml·kg-1·min-1 in a centenarian cyclist). These data suggest that a linear decrease in [Formula: see text] might be possible if physical exercise loads are kept consistently high through the entire life span, with [Formula: see text] values remaining higher than those of the general population across all ages. We also summarize the main physiological changes that occur with inactive aging at different system levels-pulmonary and cardiovascular function, blood O2 carrying capacity, skeletal muscle capillary density and oxidative capacity-and negatively influence [Formula: see text], and review how lifelong exercise can attenuate or even prevent most-but apparently not all (e.g., maximum heart rate decline)-of them. In summary, although aging seems to be invariably associated with a progressive decline in [Formula: see text], maintaining high levels of physical exercise along the life span slows the multi-systemic deterioration that is commonly observed in inactive individuals, thereby attenuating age-related [Formula: see text] decline.
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Cotoraci C, Ciceu A, Sasu A, Hermenean A. Natural Antioxidants in Anemia Treatment. Int J Mol Sci 2021; 22:ijms22041883. [PMID: 33668657 PMCID: PMC7918704 DOI: 10.3390/ijms22041883] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/07/2021] [Accepted: 02/11/2021] [Indexed: 01/03/2023] Open
Abstract
Anemia, characterized by a decrease of the hemoglobin level in the blood and a reduction in carrying capacity of oxygen, is a major public health problem which affects people of all ages. The methods used to treat anemia are blood transfusion and oral administration of iron-based supplements, but these treatments are associated with a number of side effects, such as nausea, vomiting, constipation, and stomach pain, which limit its long-term use. In addition, oral iron supplements are poorly absorbed in the intestinal tract, due to overexpression of hepcidin, a peptide hormone that plays a central role in iron homeostasis. In this review, we conducted an analysis of the literature on biologically active compounds and plant extracts used in the treatment of various types of anemia. The purpose of this review is to provide up-to-date information on the use of these compounds and plant extracts, in order to explore their therapeutic potential. The advantage of using them is that they are available from natural resources and can be used as main, alternative, or adjuvant therapies in many diseases, such as various types of anemia.
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Affiliation(s)
- Coralia Cotoraci
- Department of Hematology, Faculty of Medicine, Vasile Goldis Western University of Arad, Rebreanu 86, 310414 Arad, Romania;
- Correspondence:
| | - Alina Ciceu
- “Aurel Ardelean” Institute of Life Sciences, Vasile Godis Western University of Arad, Rebreanu 86, 310414 Arad, Romania; (A.C.); (A.H.)
| | - Alciona Sasu
- Department of Hematology, Faculty of Medicine, Vasile Goldis Western University of Arad, Rebreanu 86, 310414 Arad, Romania;
| | - Anca Hermenean
- “Aurel Ardelean” Institute of Life Sciences, Vasile Godis Western University of Arad, Rebreanu 86, 310414 Arad, Romania; (A.C.); (A.H.)
- Department of Histology, Faculty of Medicine, Vasile Goldis Western University of Arad, Rebreanu 86, 310414 Arad, Romania
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Zabielska P, Wieder-Huszla S, Karakiewicz B, Skonieczna-Żydecka K, Lubkowska A, Jurczak A. Analysis of the levels of inflammatory parameters in persons over the age of 90. Exp Gerontol 2021; 148:111278. [PMID: 33592278 DOI: 10.1016/j.exger.2021.111278] [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: 09/21/2020] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 11/19/2022]
Abstract
Chronic inflammatory conditions resulting from elevated levels of circulating proinflammatory mediators are common in the elderly. The aim of the paper was to analyze the balance between proinflammatory and anti-inflammatory markers in longevous individuals. The study was conducted in persons aged >90 years old, residents of Poland living either at home or staying at residential care facilities. The study included 90 persons (69 women and 21 men) aged between 90 and 103 years. Persons with abnormal CRP presented with a statistical tendency toward higher fibrinogen and lower IL10 and IL-1α levels compared to patients in whom CRP level was within the normal range. IL-6 concentration predicted abnormality within CRP. Inflammation in persons above the age of 90 years old might be linked to abnormal fibrinogen and IL-6 levels.
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Affiliation(s)
- Paulina Zabielska
- Subdepartment of Social Medicine and Public Health, Department of Social Medicine, Pomeranian Medical University in Szczecin, Szczecin 71-210, Poland
| | - Sylwia Wieder-Huszla
- Department of Clinical Nursing, Pomeranian Medical University in Szczecin, Szczecin 71-210, Poland.
| | - Beata Karakiewicz
- Subdepartment of Social Medicine and Public Health, Department of Social Medicine, Pomeranian Medical University in Szczecin, Szczecin 71-210, Poland
| | | | - Anna Lubkowska
- Department of Functional Diagnostics and Physical Medicine, Pomeranian Medical University in Szczecin, Szczecin 71-210, Poland
| | - Anna Jurczak
- Department of Clinical Nursing, Pomeranian Medical University in Szczecin, Szczecin 71-210, Poland
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Macciò A, Oppi S, Madeddu C. COVID-19 and cytokine storm syndrome: can what we know about interleukin-6 in ovarian cancer be applied? J Ovarian Res 2021; 14:28. [PMID: 33550983 PMCID: PMC7868172 DOI: 10.1186/s13048-021-00772-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/22/2021] [Indexed: 02/06/2023] Open
Abstract
Improving early diagnosis along with timely and effective treatment of COVID-19 are urgently needed. However, at present, the mechanisms underlying disease spread and development, defined prognosis, and immune status of patients with COVID-19 remain to be determined. Patients with severe disease state exhibit a hyperinflammatory response associated with cytokine storm syndrome, hypercoagulability, and depressed cell-mediated immunity. These clinical manifestations, sharing similar pathogenesis, have been well-studied in patients with advanced ovarian cancer. The present review suggests treatment approaches for COVID-19 based on strategies used against ovarian cancer, which shares similar immunopathology and associated coagulation disorders.The chronicization of the hyperinflammatory cytokine storm in patients with severe COVID-19 highlights a defective resistance phase that leads to aspecific chronic inflammation, associated with oxidative stress, which impairs specific T-cell response, induces tissue and endothelial damage, and thrombosis associated with systemic effects that lead to severe multi-organ failure and death. These events are similar to those observed in advanced ovarian cancer which share similar pathogenesis mediated primarily by Interleukin-6, which is, as well demonstrated in ovarian cancer, the key cytokine driving the immunopathology, related systemic symptoms, and patient prognosis.Consistent with findings in other disease models with similar immunopathology, such as advanced ovarian cancer, treatment of severe COVID-19 infection should target inflammation, oxidative stress, coagulation disorders, and immunodepression to improve patient outcome. Correctly identifying disease stages, based on available laboratory data, and developing a specific protocol for each phase is essential for effective treatment.
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Affiliation(s)
- Antonio Macciò
- Department of Gynecologic Oncology, Businco Hospital, "Azienda di Rilievo Nazionale ad Alta Specializzazione G. Brotzu", Via Jenner, 09100, Cagliari, Italy.
| | - Sara Oppi
- Hematology and Transplant Center, Businco Hospital, "Azienda di Rilievo Nazionale ad Alta Specializzazione G. Brotzu", Cagliari, Italy
| | - Clelia Madeddu
- Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
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Zulfiqar AA, Lorenzo Villalba N, Andres E. [Anaemia: What is its relationship with the frailty syndrome in elderly patients?]. Rev Esp Geriatr Gerontol 2020; 55:350-353. [PMID: 32247637 DOI: 10.1016/j.regg.2019.11.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 10/15/2019] [Accepted: 11/19/2019] [Indexed: 06/11/2023]
Abstract
Anaemia is often unexpectedly found, or in a context of investigations into a chest pain, dyspnoea, or weakness. This disorder can be considered an indicator of health status in elderly patients, and has been related to the frailty syndrome. A systematic review was conducted on the studies published in PubMed and Google Scholar databases in the period from January 1999 to May 2019. The search was limited to those studies published regarding anaemia and its relationship to the frailty syndrome. Anaemia seems to be part of the immunosenescence process that can explain frailty syndrome in association with other metabolism, endocrine, and inflammatory disorders. It was unable to be determined if anaemia is responsible for frailty or a result of it.
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Affiliation(s)
- Abrar-Ahmad Zulfiqar
- Servicio de Medicina Interna, Diabetes y Enfermedades Metabólicas, Hospital Universitario de Estrasburgo, Estrasburgo, Francia
| | - Noel Lorenzo Villalba
- Servicio de Medicina Interna, Diabetes y Enfermedades Metabólicas, Hospital Universitario de Estrasburgo, Estrasburgo, Francia.
| | - Emmanuel Andres
- Servicio de Medicina Interna, Diabetes y Enfermedades Metabólicas, Hospital Universitario de Estrasburgo, Estrasburgo, Francia
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Abdullah N, Ismail N, Abd Jalal N, Mohd Radin F, Othman R, Kamalul Arifin AS, Kamaruddin MA, Jamal R. Prevalence of anaemia and associated risk factors amongst The Malaysian Cohort participants. Ann Hematol 2020; 99:2521-2527. [PMID: 32975589 DOI: 10.1007/s00277-020-04279-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 09/17/2020] [Indexed: 12/19/2022]
Abstract
This study was aimed at determining the prevalence of anaemia amongst the Malaysian Cohort participants and the associated risk factors. This was a cross-sectional study that involved 102,388 participants from The Malaysian Cohort (TMC) aged between 35 and 70 years old recruited from April 2006 to September 2012. Venous blood was taken for the full blood count. The prevalence of anaemia was 13.8% with majority having the microcytic-hypochromic type (59.7%). Comparison between the ethnic groups showed that Indians have the highest prevalence of anaemia (19.9%), followed by Malays (13.1%), and Chinese (12.0%). The prevalence of anaemia was substantially higher in females (20.1%) compared to males (4.9%). Amongst the female participants, the prevalence of anaemia was highest amongst those who were younger than 49 years old and decreased as the age increased. In contrast, the prevalence of anaemia in males increased with age. Gender, ethnicity, age, marital status, presence of platelet disorders and kidney disease were significant risk factors associated with anaemia and contributed to 14.9% of the risk of developing anaemia in this population. The prevalence of anaemia amongst the Malaysian Cohort participants is 13.8% with the majority having the microcytic and hypochromic type implying iron deficiency as the main cause. It is important that those who have anaemia be further investigated and treated.
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Affiliation(s)
- Noraidatulakma Abdullah
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000, Kuala Lumpur, Malaysia
| | - Norliza Ismail
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000, Kuala Lumpur, Malaysia
| | - Nazihah Abd Jalal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000, Kuala Lumpur, Malaysia
| | - Farazela Mohd Radin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000, Kuala Lumpur, Malaysia
| | - Raihannah Othman
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000, Kuala Lumpur, Malaysia
| | - Azwa Shazwani Kamalul Arifin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000, Kuala Lumpur, Malaysia
| | - Mohd Arman Kamaruddin
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000, Kuala Lumpur, Malaysia
| | - Rahman Jamal
- UKM Medical Molecular Biology Institute (UMBI), Universiti Kebangsaan Malaysia, Jalan Yaacob Latif, Bandar Tun Razak, Cheras, 56000, Kuala Lumpur, Malaysia.
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SARS-CoV-2: From Structure to Pathology, Host Immune Response and Therapeutic Management. Microorganisms 2020; 8:microorganisms8101468. [PMID: 32987852 PMCID: PMC7600570 DOI: 10.3390/microorganisms8101468] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 09/18/2020] [Accepted: 09/22/2020] [Indexed: 02/06/2023] Open
Abstract
Coronaviruses are large, enveloped viruses with a single-stranded RNA genome, infecting both humans and a wide range of wild and domestic animals. SARS-CoV-2, the agent of the COVID-19 pandemic, has 80% sequence homology with SARS-CoV-1 and 96-98% homology with coronaviruses isolated from bats. The spread of infection is favored by prolonged exposure to high densities of aerosols indoors. Current studies have shown that SARS-CoV-2 is much more stable than other coronaviruses and viral respiratory pathogens. The severe forms of infection are associated with several risk factors, including advanced age, metabolic syndrome, diabetes, obesity, chronic inflammatory or autoimmune disease, and other preexisting infectious diseases, all having in common the pre-existence of a pro-inflammatory condition. Consequently, it is essential to understand the relationship between the inflammatory process and the specific immune response in SARS-CoV-2 infection. In this review, we present a general characterization of the SARS-CoV-2 virus (origin, sensitivity to chemical and physical factors, multiplication cycle, genetic variability), the molecular mechanisms of COVID-19 pathology, the host immune response and discuss how the inflammatory conditions associated with different diseases could increase the risk of COVID-19. Last, but not least, we briefly review the SARS-CoV-2 diagnostics, pharmacology, and future approaches toward vaccine development.
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Adefegha SA, Bottari NB, Leal DB, de Andrade CM, Schetinger MR. Interferon gamma/interleukin-4 modulation, anti-inflammatory and antioxidant effects of hesperidin in complete Freund's adjuvant (CFA)-induced arthritis model of rats. Immunopharmacol Immunotoxicol 2020; 42:509-520. [PMID: 32838587 DOI: 10.1080/08923973.2020.1814806] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND This study sought to assess the effect of hesperidin on serum inflammatory cytokines and oxidative damage in liver of complete Freund's adjuvant (CFA)-induced arthritic rats. METHOD Fifty-six adult female Wistar rats (220-250 g) were acclimatized for two weeks. Intraplantar injection of CFA was done for the induction of arthritis and confirmed on the 14th day prior to oral administration of 40 and 80 mg/kg of hesperidin or dexamethasone for 45 days. RESULT The result showed that treatment with both doses of hesperidin and dexamethasone in the joint of arthritic rats significantly (p < .05) diminished paw swelling/edema and arthritis score as well as enhanced latency in thermal hyperalgesia test. In addition, hesperidin treatment in arthritis rats showed significant (p < .01) improvement in red blood cells and platelets counts as well as hemoglobin and hematocrit compared to the arthritis control rat group. Furthermore, hesperidin treatment significantly (p < .05) reduced serum interferon gamma (IFN-γ) and interleukin-4 (IL-4) levels in arthritic rat. In addition, treatment with hesperidin significantly (p < .05) decreased the liver of thiobarbituric acid reactive species and reactive oxygen species levels but raised the levels of total and non-protein thiols of rat induced with CFA. The reduced activities of liver δ-aminolevulinate dehydratase, catalase, glutathione-S transferase in arthritic rats were significantly (p < .05) increased with hesperidin treatment in arthritic rats. This study suggests that hesperidin demonstrated an anti-arthritic effect via modulation of serum IFN-γ and IL-4 levels as well as protection against oxidative damage. CONCLUSION Hence, hesperidin could be a potential immune-modulatory, anti-inflammatory and anti-oxidant agent.
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Affiliation(s)
- Stephen Adeniyi Adefegha
- Department of Biochemistry, Federal University of Technology, Akure, Nigeria.,Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria-RS, Brazil.,Departamento de Microbiologia, Immunologia e Parasitologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria-RS, Brazil
| | - Nathieli Bianchin Bottari
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria-RS, Brazil
| | - Daniela Bitencourt Leal
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria-RS, Brazil.,Departamento de Microbiologia, Immunologia e Parasitologia, Centro de Ciências da Saúde, Universidade Federal de Santa Maria, Santa Maria-RS, Brazil
| | - Cínthia Melazzo de Andrade
- Programa de Pós graduação em Medicina Veterinária, Centro de Ciência Rurais, Departamento de Clínica de Pequenos Animais, Laboratório de Patologia Clínica Veternária, Hospital Veterinário, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Maria Rosa Schetinger
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria-RS, Brazil
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Anemia of Chronic Diseases: Wider Diagnostics-Better Treatment? Nutrients 2020; 12:nu12061784. [PMID: 32560029 PMCID: PMC7353365 DOI: 10.3390/nu12061784] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 05/29/2020] [Accepted: 06/10/2020] [Indexed: 12/13/2022] Open
Abstract
Anemia of chronic diseases is a condition that accompanies a specific underlying disease, in which there is a decrease in hemoglobin, hematocrit and erythrocyte counts due to a complex process, usually initiated by cellular immunity mechanisms and pro-inflammatory cytokines and hepcidin. This is the second most common type of anemia after iron deficiency anemia in the world. Its severity generally correlates with the severity of the underlying disease. This disease most often coexists with chronic inflammation, autoimmune diseases, cancer, and kidney failure. Before starting treatment, one should undertake in-depth diagnostics, which includes not only assessment of complete blood count and biochemical parameters, but also severity of the underlying disease. The differential diagnosis of anemia of chronic diseases is primarily based on the exclusion of other types of anemia, in particular iron deficiency. The main features of anemia of chronic diseases include mild to moderate lowering of hemoglobin level, decreased percentage of reticulocyte count, low iron and transferrin concentration, but increased ferritin. Due to the increasingly better knowledge of the pathomechanism of chronic diseases and cancer biology, the diagnosis of this anemia is constantly expanding with new biochemical indicators. These include: the concentration of other hematopoietic factors (folic acid, vitamin B12), hepcidin, creatinine and erythropoietin. The basic form of treatment of anemia of chronic diseases remains supplementation with iron, folic acid and vitamin B12 as well as a diet rich in the above-mentioned hematopoietic factors. The route of administration (oral, intramuscular or intravenous) requires careful consideration of the benefits and possible side effects, and assessment of the patient’s clinical status. New methods of treating both the underlying disease and anemia are raising hopes. The novel methods are associated not only with supplementing deficiencies, but also with the administration of drugs molecularly targeted to specific proteins or receptors involved in the development of anemia of chronic diseases.
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Steinmeyer Z, Delpierre C, Soriano G, Steinmeyer A, Ysebaert L, Balardy L, Sourdet S. Hemoglobin concentration; a pathway to frailty. BMC Geriatr 2020; 20:202. [PMID: 32527230 PMCID: PMC7291509 DOI: 10.1186/s12877-020-01597-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 05/28/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Frailty and hemoglobin concentration, above what would be considered clinical anemia, are two common findings in older patients that lead to an increased risk of negative health outcomes. The objective of this study is to evaluate whether hemoglobin concentration is an independent predictor of frailty and investigate possible causal pathways with a focus on the relationship between inflammation or nutrition and hemoglobin concentration. METHODS 1829 community-dwelling participants aged 65 years or older who visited the Toulouse frailty day hospital during 2011 and 2016 were included in this analysis. Patients underwent a comprehensive geriatric assessment and had a blood sample taken. A series of multivariate logistic regression models were performed after minimizing potential influence from age, gender, kidney function, inflammation, cognition, nutritional status and certain socio-economic factors. RESULTS Hemoglobin concentration and frailty are significantly associated after minimizing potential influence from other covariates (p < 0.005). An increase in one point of hemoglobin concentration is associated with a 14% risk reduction of being frail (OR = 0.86, 95%IC = 0.79-0.94). There was no evidence of a significant causal relationship between inflammation and nutritional status in the relationship between hemoglobin concentration and frailty status (p > 0.005). CONCLUSIONS Hemoglobin concentration is strongly associated with frailty in older adults. These results can have potentially important implications for prevention policies targeting frailty by identifying potential patients with high risk of adverse outcomes and functional outcomes.
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Affiliation(s)
- Zara Steinmeyer
- Centre Hospitalier Universitaire de Toulouse, Geriatrics, Toulouse, France
| | - Cyrille Delpierre
- Institut National de la Santé et de la Recherche Médicale UMR 1027, Toulouse, France
| | - Gaelle Soriano
- Centre Hospitalier Universitaire de Toulouse, Geriatrics, Toulouse, France
| | - Armand Steinmeyer
- Centre Hospitalier Universitaire de Toulouse, Geriatrics, Toulouse, France
| | - Loic Ysebaert
- Institut Universitaire de Cancer de Toulouse, Toulouse, France
| | - Laurent Balardy
- Centre Hospitalier Universitaire de Toulouse, Geriatrics, Toulouse, France
| | - Sandrine Sourdet
- Centre Hospitalier Universitaire de Toulouse, Geriatrics, Toulouse, France
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Elbarbary M, Honda T, Morgan G, Guo Y, Guo Y, Kowal P, Negin J. Ambient Air Pollution Exposure Association with Anaemia Prevalence and Haemoglobin Levels in Chinese Older Adults. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17093209. [PMID: 32380747 PMCID: PMC7246731 DOI: 10.3390/ijerph17093209] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 04/27/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Health effects of air pollution on anaemia have been scarcely studied worldwide. We aimed to explore the associations of long-term exposure to ambient air pollutants with anaemia prevalence and haemoglobin levels in Chinese older adults. METHODS We used two-level linear regression models and modified Poisson regression with robust error variance to examine the associations of particulate matter (PM) and nitrogen dioxide (NO2) on haemoglobin concentrations and the prevalence of anaemia, respectively, among 10,611 older Chinese adults enrolled in World Health Organization (WHO) Study on global AGEing and adult health (SAGE) China. The average community exposure to ambient air pollutants (PM with an aerodynamic diameter of 10 μm or less (PM10), 2.5 μm or less (PM2.5), 1 μm or less (PM1) and nitrogen dioxide (NO2)) for each participant was estimated using a satellite-based spatial statistical model. Haemoglobin levels were measured for participants from dried blood spots. The models were controlled for confounders. RESULTS All the studied pollutants were significantly associated with increased anaemia prevalence in single pollutant model (e.g., the prevalence ratios associated with an increase in inter quartile range in three years moving average PM10 (1.05; 95% CI: 1.02-1.09), PM2.5 (1.11; 95% CI: 1.06-1.16), PM1 (1.13; 95% CI: 1.06-1.20) and NO2 (1.42; 95% CI: 1.34-1.49), respectively. These air pollutants were also associated with lower concentrations of haemoglobin: PM10 (-0.53; 95% CI: -0.67, -0.38); PM2.5 (-0.52; 95% CI: -0.71, -0.33); PM1 (-0.55; 95% CI: -0.69, -0.41); NO2 (-1.71; 95% CI: -1.85, -1.57) respectively. CONCLUSIONS Air pollution exposure was significantly associated with increased prevalence of anaemia and decreased haemoglobin levels in a cohort of older Chinese adults.
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Affiliation(s)
- Mona Elbarbary
- Faculty of Medicine and Health, Sydney School of Public Health, The University of Sydney, Sydney, NSW 2006, Australia; (G.M.); (J.N.)
- Correspondence: ; Tel.: +61-416405016
| | - Trenton Honda
- Department of Family and Preventive Medicine, University of Utah, Salt Lake City, UT 84108, USA;
| | - Geoffrey Morgan
- Faculty of Medicine and Health, Sydney School of Public Health, The University of Sydney, Sydney, NSW 2006, Australia; (G.M.); (J.N.)
- School of Public Health, University Centre for Rural Health, The University of Sydney, Sydney, NSW 2006, Australia
| | - Yuming Guo
- Department of Epidemiology and Preventive Medicine at School of Public Health and Preventive Medicine, Monash University, Clayton, VIC 3800, Australia;
| | - Yanfei Guo
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China;
| | - Paul Kowal
- School of Medicine and Public Health, The University of Newcastle, Callaghan, NSW 2308, Australia;
| | - Joel Negin
- Faculty of Medicine and Health, Sydney School of Public Health, The University of Sydney, Sydney, NSW 2006, Australia; (G.M.); (J.N.)
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Alique M, Sánchez-López E, Bodega G, Giannarelli C, Carracedo J, Ramírez R. Hypoxia-Inducible Factor-1α: The Master Regulator of Endothelial Cell Senescence in Vascular Aging. Cells 2020; 9:cells9010195. [PMID: 31941032 PMCID: PMC7016968 DOI: 10.3390/cells9010195] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/07/2020] [Accepted: 01/11/2020] [Indexed: 12/11/2022] Open
Abstract
Aging is one of the hottest topics in biomedical research. Advances in research and medicine have helped to preserve human health, leading to an extension of life expectancy. However, the extension of life is an irreversible process that is accompanied by the development of aging-related conditions such as weakness, slower metabolism, and stiffness of vessels. It also debated that aging can be considered an actual disease with aging-derived comorbidities, including cancer or cardiovascular disease. Currently, cardiovascular disorders, including atherosclerosis, are considered as premature aging and represent the first causes of death in developed countries, accounting for 31% of annual deaths globally. Emerging evidence has identified hypoxia-inducible factor-1α as a critical transcription factor with an essential role in aging-related pathology, in particular, regulating cellular senescence associated with cardiovascular aging. In this review, we will focus on the regulation of senescence mediated by hypoxia-inducible factor-1α in age-related pathologies, with particular emphasis on the crosstalk between endothelial and vascular cells in age-associated atherosclerotic lesions. More specifically, we will focus on the characteristics and mechanisms by which cells within the vascular wall, including endothelial and vascular cells, achieve a senescent phenotype.
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Affiliation(s)
- Matilde Alique
- Departamento Biología de Sistemas, Facultad de Medicina y Ciencias de la Salud (IRYCIS), Universidad de Alcalá, Alcalá de Henares, 28805 Madrid, Spain;
- Correspondence: (M.A.); (J.C.); Tel.: +34-91-885-6436 (M.A.); +34-91-394-5005 (J.C.)
| | - Elsa Sánchez-López
- Departments of Pharmacology and Pathology, University of California San Diego, La Jolla, CA 92037, USA;
| | - Guillermo Bodega
- Departamento de Biomedicina y Biotecnología, Facultad de Biología, Química y Ciencias Ambientales, Universidad de Alcalá, Alcalá de Henares, 28805 Madrid, Spain;
| | - Chiara Giannarelli
- Cardiovascular Research Center, Institute for Genomics and Multiscale Biology, New York, NY 10029, USA;
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029, USA
| | - Julia Carracedo
- Departamento de Genética, Fisiología y Microbiología, Facultad de Biología, Universidad Complutense de Madrid, 28040 Madrid, Spain
- Instituto de Investigación Sanitaria Hospital 12 de Octubre (i+12), 28041 Madrid, Spain
- Correspondence: (M.A.); (J.C.); Tel.: +34-91-885-6436 (M.A.); +34-91-394-5005 (J.C.)
| | - Rafael Ramírez
- Departamento Biología de Sistemas, Facultad de Medicina y Ciencias de la Salud (IRYCIS), Universidad de Alcalá, Alcalá de Henares, 28805 Madrid, Spain;
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Ruan Y, Guo Y, Kowal P, Lu Y, Liu C, Sun S, Huang Z, Zheng Y, Wang W, Li G, Shi Y, Wu F. Association between anemia and frailty in 13,175 community-dwelling adults aged 50 years and older in China. BMC Geriatr 2019; 19:327. [PMID: 31796000 PMCID: PMC6891965 DOI: 10.1186/s12877-019-1342-5] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 10/31/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Anemia and frailty contribute to poor health outcomes in older adults; however, most current research in lower income countries has concentrated on anemia or frailty alone rather than in combination. The aim of the present study was to investigate the association between anemia and frailty in community-dwelling adults aged 50 years and older in China. METHODS The study population was sourced from the 2007/10 SAGE China Wave 1. Anemia was defined as hemoglobin less than 13 g/dL for men and less than 12 g/dL for women. A Frailty Index (FI) was compiled to assess frailty. The association between anemia and frailty was evaluated using a 2-level hierarchical logistic model. RESULTS The prevalence of anemia was 31.0% (95%CI: 28.4, 33.8%) and frailty 14.7% (95%CI: 13.5, 16.0%). In the univariate regression model, presence of anemia was significantly associated with frailty (OR = 1.62, 95% CI: 1.39, 1.90) and the effect remained consistent after adjusting for various potential confounding factors including age, gender, residence, education, household wealth, fruit and vegetable intake, tobacco use, alcohol comsumption and physical activity (adjusted OR = 1.31, 95% CI:1.09, 1.57). Each 1 g/dL increase in hemoglobin concentration was associated with 4% decrease in the odds of frailty after adjusting for several confounding variables (adjusted OR = 0.96, 95% CI: 0.93, 0.99). CONCLUSION Anemia and low hemoglobin concentrations were significantly associated with frailty. Therefore, health care professionals caring for older adults should increase screening, assessment of causes and treatment of anemia as one method of avoiding, delaying or even reversing frailty.
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Affiliation(s)
- Ye Ruan
- Shanghai Municipal Centre for Disease Control and Prevention (Shanghai CDC), Shanghai, People’s Republic of China
| | - Yanfei Guo
- Shanghai Municipal Centre for Disease Control and Prevention (Shanghai CDC), Shanghai, People’s Republic of China
| | - Paul Kowal
- World Health Organization, Geneva, Switzerland
- Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Ye Lu
- Shanghai Municipal Centre for Disease Control and Prevention (Shanghai CDC), Shanghai, People’s Republic of China
| | - Chazhen Liu
- Shanghai Municipal Centre for Disease Control and Prevention (Shanghai CDC), Shanghai, People’s Republic of China
| | - Shuangyuan Sun
- Shanghai Municipal Centre for Disease Control and Prevention (Shanghai CDC), Shanghai, People’s Republic of China
| | - Zhezhou Huang
- Shanghai Municipal Centre for Disease Control and Prevention (Shanghai CDC), Shanghai, People’s Republic of China
| | - Yang Zheng
- Shanghai Municipal Centre for Disease Control and Prevention (Shanghai CDC), Shanghai, People’s Republic of China
| | - Wenjing Wang
- Shanghai Municipal Centre for Disease Control and Prevention (Shanghai CDC), Shanghai, People’s Republic of China
| | - Gan Li
- School of public health, Shanghai Jiaotong university, Shanghai, People’s Republic of China
| | - Yan Shi
- Shanghai Municipal Centre for Disease Control and Prevention (Shanghai CDC), Shanghai, People’s Republic of China
| | - Fan Wu
- Shanghai Municipal Centre for Disease Control and Prevention (Shanghai CDC), Shanghai, People’s Republic of China
- Shanghai Medical College, Fudan University, Shanghai, People’s Republic of China
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Honda T, Pun VC, Manjourides J, Suh H. Anemia prevalence and hemoglobin levels are associated with long-term exposure to air pollution in an older population. ENVIRONMENT INTERNATIONAL 2017; 101:125-132. [PMID: 28153527 PMCID: PMC5361751 DOI: 10.1016/j.envint.2017.01.017] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 01/24/2017] [Accepted: 01/25/2017] [Indexed: 05/06/2023]
Abstract
BACKGROUND Anemia, a highly prevalent disorder in elderly populations, is associated with numerous adverse health outcomes, including increased mortality, impaired functional status and cognitive disorders. Approximately two-thirds of anemia in American elderly is caused by chronic inflammation or is unexplained. A potential contributing factor may include air pollution exposures, which have been shown to increase systemic inflammation and affect erythropoiesis. Few studies, however, have investigated the associations of air pollution on hemoglobin levels and anemia. METHODS We used linear regression models and modified Poisson regression with robust error variance to examine the associations of particulate matter (PM2.5) and nitrogen dioxide (NO2) on hemoglobin concentrations and prevalence of anemia, respectively, among 4121 older Americans enrolled in the National Social Life, Health, and Aging Project. We estimated participant-specific exposures to PM2.5 using spatio-temporal models, and to NO2 using nearest measurements from Environmental Protection Agency's Air Quality System. Hemoglobin levels were measured for participants in each of two data collection waves from dried blood spots. Anemia was defined using World Health Organization hemoglobin-based criteria of <13 and <12g/dL for men and women, respectively. Models were adjusted for age, sex, smoking status, race, income, education, neighborhood socioeconomic status, region, urbanicity and medication use. Mediation by C-reactive protein (CRP), a marker of systemic inflammation, was also investigated. RESULTS An inter-quartile range (IQR, 3.9μg/m3) increase in the one-year moving average PM2.5 was positively associated with anemia prevalence (prevalence ratio, or PR 1.33, 95% CI: 1.23, 1.45) and decreases in average hemoglobin of 0.81g/dL (p<0.001). Similarly, an IQR (9.6ppb) increase in NO2 was associated with anemia prevalence (PR 1.43, 95% CI: 1.25, 1.63) and a decrease in average hemoglobin of 0.81g/dL (p<0.001). Strong dose-response relationships were identified for both pollutants. Mediation of the effect of PM2.5 by CRP was also identified (p=0.007). CONCLUSIONS/INTERPRETATIONS Air pollution exposures were significantly associated with increased prevalence of anemia and decreased hemoglobin levels in a cohort of older Americans. If causal, these associations could indicate that chronic air pollution exposure is an important risk factor for anemia in older adults.
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Affiliation(s)
- Trenton Honda
- Department of Health Sciences, Northeastern University, Boston, MA, United States.
| | - Vivian C Pun
- Department of Health Sciences, Northeastern University, Boston, MA, United States
| | - Justin Manjourides
- Department of Health Sciences, Northeastern University, Boston, MA, United States
| | - Helen Suh
- Department of Civil and Environmental Engineering, Tufts University, Medford, MA, United States
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Radakovich LB, Pannone SC, Truelove MP, Olver CS, Santangelo KS. Hematology and biochemistry of aging-evidence of "anemia of the elderly" in old dogs. Vet Clin Pathol 2017; 46:34-45. [PMID: 28195648 DOI: 10.1111/vcp.12459] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Effects of aging on hematologic and biochemical variables are well described in people. Anemia of the elderly is attributed to iron deficiency, anemia of chronic disease, chronic kidney disease, myelodysplasia, or idiopathic causes. Limited studies have examined these variables in aging dogs, but they have typically examined single breeds in research settings. OBJECTIVE The objective of this study was to identify differences in CBC and biochemistry values between adult and aged dogs of many breeds. METHODS Dogs presenting for wellness examinations and minor dental/elective surgeries that were otherwise clinically healthy were retrospectively identified. Dogs were categorized by age: adult (1-7.9 years), senior (8-11.9 years), and geriatric (12+ years). Standard CBC and biochemistry data were collated. Asian breeds, Greyhounds, and dogs with data indicating overt underlying disease were excluded. The Kruskal-Wallis test was used to compare groups with statistical significance set at P ≤ .05. RESULTS Hematocrit, MCV, and serum iron decreased with age, indicating possible iron-restricted erythropoiesis (IRE), due to iron deficiency or low-grade chronic inflammation. Total proteins, globulins, and platelet counts increased with age while albumin decreased, suggesting low-grade inflammation. Urea was increased in older dogs without a concurrent increase in creatinine, which points toward gastrointestinal bleeding or dehydration. CONCLUSION Clinically healthy, aging dogs have changes in laboratory variables that indicate altered physiologies compared to younger adult animals, including evidence of IRE, inflammation, and potential gastrointestinal bleeding, suggesting a similar trend to that of elderly human beings. Future studies will examine markers of iron metabolism and inflammation in aging dogs.
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Affiliation(s)
- Lauren B Radakovich
- Department of Microbiology, Immunology & Pathology, Colorado State University, Fort Collins, CO, USA
| | - Stephen C Pannone
- Department of Microbiology, Immunology & Pathology, Colorado State University, Fort Collins, CO, USA
| | - Matthew P Truelove
- Department of Microbiology, Immunology & Pathology, Colorado State University, Fort Collins, CO, USA
| | - Christine S Olver
- Department of Microbiology, Immunology & Pathology, Colorado State University, Fort Collins, CO, USA
| | - Kelly S Santangelo
- Department of Microbiology, Immunology & Pathology, Colorado State University, Fort Collins, CO, USA
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Abstract
Anemia and frailty are two common findings in geriatric patients and have been shown to be associated with poor outcomes in this patient group. Recent studies have contributed to the growing evidence of a possible association with the age-related chronic inflammatory status known as “inflammaging”. These findings do not only give a better insight into the pathogenesis of anemia in frailty, but also offer new treatment options. The present article focuses on this assumed association between anemia, frailty, and inflammaging and summarizes current management options for anemia in frail patients.
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Affiliation(s)
- Gabriele Röhrig
- Ageing Clinical Research, Department II of Internal Medicine, University Hospital Cologne, Cologne, Germany; Department of Geriatrics, St Marien Hospital Cologne, Cologne, Germany
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Anemia in Patients with Type 2 Diabetes Mellitus. Anemia 2015; 2015:354737. [PMID: 26640706 PMCID: PMC4658398 DOI: 10.1155/2015/354737] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 09/07/2015] [Accepted: 09/13/2015] [Indexed: 01/07/2023] Open
Abstract
The objective of this study was to evaluate the prevalence of anemia in DM2 patients and its correlation with demographic and lifestyle and laboratory variables. This is a descriptive and analytical study of the type of case studies in the urban area of the Ijuí city, registered in programs of the Family Health Strategy, with a total sample of 146 patients with DM2. A semistructured questionnaire with sociodemographic and clinical variables and performed biochemical test was applied. Of the DM2 patients studied, 50 patients had anemia, and it was found that the body mass items and hypertension and hematological variables are significantly associated with anemia of chronic disease. So, the prevalence of anemia is high in patients with DM2. The set of observed changes characterizes the anemia of chronic disease, which affects quality of life of diabetic patients and is associated with disease progression, development, and comorbidities that contribute significantly to increasing the risk of cardiovascular diseases.
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Silva JC, de Moraes ZV, Silva C, de Barros Mazon S, Guariento ME, Neri AL, Fattori A. Understanding red blood cell parameters in the context of the frailty phenotype: interpretations of the FIBRA (Frailty in Brazilian Seniors) study. Arch Gerontol Geriatr 2014; 59:636-41. [DOI: 10.1016/j.archger.2014.07.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2013] [Revised: 07/23/2014] [Accepted: 07/25/2014] [Indexed: 12/13/2022]
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Savonitto S, Morici N, De Servi S. Update: acute coronary syndromes (VI): treatment of acute coronary syndromes in the elderly and in patients with comorbidities. ACTA ACUST UNITED AC 2014; 67:564-73. [PMID: 24952397 DOI: 10.1016/j.rec.2014.02.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Accepted: 02/12/2014] [Indexed: 01/08/2023]
Abstract
Acute coronary syndromes have a wide spectrum of clinical presentations and risk of adverse outcomes. A distinction should be made between treatable (extent of ischemia, severity of coronary disease and acute hemodynamic deterioration) and untreatable risk (advanced age, prior myocardial damage, chronic kidney dysfunction, other comorbidities). Most of the patients with "untreatable" risk have been excluded from the "guideline-generating" clinical trials. In recent years, despite the paucity of specific randomized trials, major advances have been completed in the management of elderly patients and patients with comorbidities: from therapeutic nihilism to careful titration of antithrombotic agents, a shift toward the radial approach to percutaneous coronary interventions, and also to less-invasive cardiac surgery. Further advances should be expected from the development of drug regimens suitable for use in the elderly and in patients with renal dysfunction, from a systematic multidisciplinary approach to the management of patents with diabetes mellitus and anemia, and from the courage to undertake randomized trials involving these high-risk populations.
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Affiliation(s)
| | - Nuccia Morici
- Cardiologia Prima-Emodinamica, Ospedale Niguarda Ca' Granda, Milano, Italy
| | - Stefano De Servi
- Cure Intensive Coronariche, IRCCS Policlinico S. Matteo, Pavia, Italy
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Macciò A, Madeddu C. The role of interleukin-6 in the evolution of ovarian cancer: clinical and prognostic implications--a review. J Mol Med (Berl) 2013; 91:1355-68. [PMID: 24057813 DOI: 10.1007/s00109-013-1080-7] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Revised: 08/16/2013] [Accepted: 08/21/2013] [Indexed: 12/22/2022]
Abstract
An increasing number of studies emphasize the role of inflammation and metabolic changes in the induction of cancer-related symptoms, which can affect cancer evolution and prognosis. These changes result from the interactions between the tumor and the host. To date, however, markers of this peculiar condition, which can help clinicians to manage patients better, have still not been identified with certainty. Epithelial ovarian cancer (EOC) appears to be particularly appropriate to study these interactions because of its biological characteristics, its peculiar evolution, and the relevant scientific evidence available. Immunosuppression, anemia, depression, and weight loss affect the evolution of EOC and appear to be directly related to the immune-metabolic changes. In light of the aforementioned evidence, our review will focus on interleukin-6 (IL-6) and its role as potential marker of the patients' immune-metabolic status, to better monitor disease outcome and identify the most appropriate therapeutic strategy in EOC. Furthermore, leptin will be discussed as a sensor of the changes of energy metabolism induced by IL-6.
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Affiliation(s)
- Antonio Macciò
- Department of Gynecologic Oncology, "A. Businco" Hospital, Regional Referral Center for Cancer Disease, via Edward Jenner, 09121, Cagliari, Italy,
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Bosco RDM, Assis EPS, Pinheiro RR, Queiroz LCVD, Pereira LSM, Antunes CMF. Anemia and functional capacity in elderly Brazilian hospitalized patients. CAD SAUDE PUBLICA 2013; 29:1322-32. [DOI: 10.1590/s0102-311x2013000700007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Accepted: 02/18/2013] [Indexed: 11/22/2022] Open
Abstract
This study evaluated the association between anemia and physical functional capacity in a cross-sectional population-based sample of 709 hospitalized elderly patients aged 60 years and over admitted to the Madre Teresa Hospital, Belo Horizonte, State of Minas Gerais, Brazil. The Mann-Whitney or "t" test, and chi-square or Fisher exact test were used for quantitative and categorical variables, respectively, and hierarchical binary logistic regression was used to identify significant predictors. The presence of anemia was found in 30% of participants and was significantly associated with decreased functionality according to the two measures which were used - ADL (activities of daily living) and IADL (instrumental activities of daily living). Anemia was also independently associated with older age. The results of this study demonstrate a strong association between the presence of anemia and lower levels of functional capacity. Further investigations are needed to assess the impact of anemia treatment on the functionality and independence of older people.
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Affiliation(s)
- Raquel de Macedo Bosco
- Pontifícia Universidade Católica de Minas Gerais, Brasil; Santa Casa de Misericórdia de Minas Gerais, Brasil
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