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Guo J, Li K, Lin Y, Liu Y. Protective effects and molecular mechanisms of tea polyphenols on cardiovascular diseases. Front Nutr 2023; 10:1202378. [PMID: 37448666 PMCID: PMC10336229 DOI: 10.3389/fnut.2023.1202378] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 06/13/2023] [Indexed: 07/15/2023] Open
Abstract
Aging is the most important factor contributing to cardiovascular diseases (CVDs), and the incidence and severity of cardiovascular events tend to increase with age. Currently, CVD is the leading cause of death in the global population. In-depth analysis of the mechanisms and interventions of cardiovascular aging and related diseases is an important basis for achieving healthy aging. Tea polyphenols (TPs) are the general term for the polyhydroxy compounds contained in tea leaves, whose main components are catechins, flavonoids, flavonols, anthocyanins, phenolic acids, condensed phenolic acids and polymeric phenols. Among them, catechins are the main components of TPs. In this article, we provide a detailed review of the classification and composition of teas, as well as an overview of the causes of aging-related CVDs. Then, we focus on ten aspects of the effects of TPs, including anti-hypertension, lipid-lowering effects, anti-oxidation, anti-inflammation, anti-proliferation, anti-angiogenesis, anti-atherosclerosis, recovery of endothelial function, anti-thrombosis, myocardial protective effect, to improve CVDs and the detailed molecular mechanisms.
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Affiliation(s)
- Jun Guo
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China
| | - Kai Li
- General Surgery Department, The First People’s Hospital of Tai’an City, Tai’an, China
| | - Yajun Lin
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, China
| | - Yinghua Liu
- Department of Nutrition, The First Medical Center, Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
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Sagar RC, Ajjan RA, Naseem KM. Non-Traditional Pathways for Platelet Pathophysiology in Diabetes: Implications for Future Therapeutic Targets. Int J Mol Sci 2022; 23:ijms23094973. [PMID: 35563363 PMCID: PMC9104718 DOI: 10.3390/ijms23094973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 04/26/2022] [Accepted: 04/27/2022] [Indexed: 11/23/2022] Open
Abstract
Cardiovascular complications remain the leading cause of morbidity and mortality in individuals with diabetes, driven by interlinked metabolic, inflammatory, and thrombotic changes. Hyperglycaemia, insulin resistance/deficiency, dyslipidaemia, and associated oxidative stress have been linked to abnormal platelet function leading to hyperactivity, and thus increasing vascular thrombotic risk. However, emerging evidence suggests platelets also contribute to low-grade inflammation and additionally possess the ability to interact with circulating immune cells, further driving vascular thrombo-inflammatory pathways. This narrative review highlights the role of platelets in inflammatory and immune processes beyond typical thrombotic effects and the impact these mechanisms have on cardiovascular disease in diabetes. We discuss pathways for platelet-induced inflammation and how platelet reprogramming in diabetes contributes to the high cardiovascular risk that characterises this population. Fully understanding the mechanistic pathways for platelet-induced vascular pathology will allow for the development of more effective management strategies that deal with the causes rather than the consequences of platelet function abnormalities in diabetes.
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Fathima AS, Mounika VL, Kumar VU, Gupta AK, Garapati P, Ravichandiran V, Dhingra S, Murti K. Mucormycosis: A triple burden in patients with diabetes during COVID-19 Pandemic. HEALTH SCIENCES REVIEW (OXFORD, ENGLAND) 2021; 1:100005. [PMID: 34977914 PMCID: PMC8639489 DOI: 10.1016/j.hsr.2021.100005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 11/18/2021] [Accepted: 11/30/2021] [Indexed: 02/07/2023]
Abstract
With the upsurge in the cases of COVID-19 around the world, plenty of potential COVID-19 complications are becoming more prevalent, including a higher risk of secondary bacterial and fungal infections. Mucormycosis is one such condition which has high prevalence among individuals with diabetes who were infected with COVID-19.The usage of steroids in the treatment further inflates the risk of infection and exacerbation of disease in pre-existent mucormycosis patients. Generally, Corticosteroid-induced diabetes can arise on long-term steroid medication, increasing the likelihood of mucormycosis. In patients with COVID-19, the indications and dose of corticosteroids should be properly regulated, and persons with diabetes who take insulin or oral anti-diabetic medicines should be cautious. To avoid poor outcomes, strategies to improve glycemic management should be emphasized. This narrative review elucidates different disciplines on rampant use of steroids, iron and zinc supplements as well as the methods utilized as primary or adjunctive treatment of this fatal condition. This article may help to pave the way for robust research that needs to be done to tackle the deadly triple burden of the disease.
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Affiliation(s)
- A S Fathima
- Department of Pharmacy Practice, National Institute of Pharmaceutical Education and Research, Hajipur, Bihar 844102, India
| | - Vakada Lakshmi Mounika
- Department of Pharmacy Practice, National Institute of Pharmaceutical Education and Research, Hajipur, Bihar 844102, India
| | - V Udaya Kumar
- Department of Pharmacy Practice, National Institute of Pharmaceutical Education and Research, Hajipur, Bihar 844102, India
| | - Ashok Kumar Gupta
- Department of Pharmacy, School of Medical and Allied Sciences, Galgotia University, Uttar Pradesh, India
| | - Pavan Garapati
- Department of Pharmacy Practice, National Institute of Pharmaceutical Education and Research, Hajipur, Bihar 844102, India
| | - V Ravichandiran
- Department of Pharmacy Practice, National Institute of Pharmaceutical Education and Research, Hajipur, Bihar 844102, India
| | - Sameer Dhingra
- Department of Pharmacy Practice, National Institute of Pharmaceutical Education and Research, Hajipur, Bihar 844102, India
| | - Krishna Murti
- Department of Pharmacy Practice, National Institute of Pharmaceutical Education and Research, Hajipur, Bihar 844102, India
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Zahran AM, El-Badawy O, Mohamad IL, Tamer DM, Abdel-Aziz SM, Elsayh KI. Platelet Activation and Platelet-Leukocyte Aggregates in Type I Diabetes Mellitus. Clin Appl Thromb Hemost 2018; 24:230S-239S. [PMID: 30309255 PMCID: PMC6714843 DOI: 10.1177/1076029618805861] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Hyperglycemia alone may not explain the increased risk of cardiovascular diseases (CVDs)
in patients with type 1 diabetes (T1D) compared with type 2. This study emphases on the
evaluation of some platelet activity markers in patients with T1D, with relevance to some
metabolic disorders as hyperlipidemia and hyperglycemia. This study was performed on 35
patients with T1D and 20 healthy controls. All participants were subjected to full history
taking, clinical examination and assay of glycated hemoglobin (HbA1c), and
lipid profile. The expression of CD62P and CD36 on platelets and the frequency of
platelet–monocyte, and platelet–neutrophil aggregates were assessed by flow cytometry.
Patients showed significantly higher expression of CD62P and CD36 than the control group.
Platelets aggregates with monocytes were also higher among patients than the control
group. Levels of CD36+ platelets, CD62P+ platelets, and
platelet–monocyte aggregates revealed significant correlations with the levels of
HbA1c, total cholesterol, low-density lipoprotein, and triglycerides.
Hyperlipidemia and hyperglycemia accompanying T1D have a stimulatory effect on platelet
activation which probably makes those patients vulnerable to CVD than nondiabetics.
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Affiliation(s)
- Asmaa M Zahran
- Department of Clinical Pathology, South Egypt Cancer Institute, Assiut, Egypt
| | - Omnia El-Badawy
- Medical Microbiology and Immunology Department, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Ismail L Mohamad
- Pediatric Department, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Deiaaeldin M Tamer
- Pediatric Department, Faculty of Medicine, Assiut University, Assiut, Egypt
| | | | - Khalid I Elsayh
- Pediatric Department, Faculty of Medicine, Assiut University, Assiut, Egypt
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Affiliation(s)
- Jaclyn A Wisinski
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Wisconsin-Madison, Madison, WI
| | - Michelle E Kimple
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Wisconsin-Madison, Madison, WI
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Vignini A, Giusti L, Raffaelli F, Giulietti A, Salvolini E, Luzzi S, Provinciali L, Mazzanti L, Nanetti L. Impact of gender on platelet membrane functions of Alzheimer's disease patients. Exp Gerontol 2012; 48:319-25. [PMID: 23228953 DOI: 10.1016/j.exger.2012.11.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Revised: 11/28/2012] [Accepted: 11/29/2012] [Indexed: 01/29/2023]
Abstract
There are many evidences suggesting that oxidative stress is one of the earliest events in Alzheimer disease (AD) pathogenesis and plays a key role in the development of the AD pathology. The existence of substantial gender-related differences in the clinical features of AD has been recently confirmed (i.e. pathophysiologic features and epidemiologic trends). In addition, study results appear to indicate that the etiopathogenetic mechanisms of AD differ significantly in the 2 sexes. Based on previous results regarding changes in AD platelet plasma membrane, the purpose of the present study was to assess the impact of gender in the same model above reported. In particular we aimed at studying platelets from AD patients (M-AD and F-AD) and matched controls (M-C and F-C), divided into gender, by studying nitric oxide (NO) and peroxynitrite (ONOO(-)) production, the intracellular Ca(2+) concentration ([Ca(2+)]i), membrane Na(+)/K(+)-ATPase activity and fluidity. NO production was significantly elevated in platelets from both F-AD and M-AD compared to matched controls. M-AD showed NO production significantly higher than F-AD and it was the same between M-C and F-C. A similar trend was seen for ONOO(-). Platelets of both M-AD and F-AD had intracellular Ca(2+) concentrations significantly higher than F-C and M-C, while membrane Na(+)/K(+)-ATPase activity showed an opposite trend, but these differences are still significant. M-AD male subjects showed a significantly increased DPH fluorescence anisotropy (r) compared with controls, while for F-AD this discrepancy was not significant. The difference in DHP fluorescence anisotropy remained significant between M-AD and F-AD as well as between M-C and F-C. The TMA-DPH fluorescence anisotropy showed the same trend, but there were no significant differences between M-AD and F-AD, as well as between controls. The results of the current research support the conclusion that F-AD is not at greater risk than M-AD for oxidative stress injuries. Studies on gender differences could lead to a higher probability of improved health outcomes via better-targeted therapies.
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Affiliation(s)
- Arianna Vignini
- Department of Clinical Science - Biochemistry, School of Medicine, Polytechnic University of Marche, Ancona, Italy
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Sak ME, Soydinç HE, Ozler A, Evsen MS, Turgut A, Sak S, Gül T. Platelet profile in patients with gestational diabetes: a retrospective study. J Turk Ger Gynecol Assoc 2012; 13:223-6. [PMID: 24592046 DOI: 10.5152/jtgga.2012.34] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Accepted: 10/04/2012] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE To assess and compare alterations in the morphology and function of platelets occurring in gestational diabetes and healthy pregnancies. MATERIAL AND METHODS A retrospective study was performed of 77 pregnant women: 42 cases with gestational diabetes and 35 healthy controls. The two groups were compared in terms of demographics and platelet parameters derived from complete blood counts. RESULTS The mean platelet volume (p=0.001) and HbA1c (p<0.001) were significantly increased in the patients with gestational diabetes. The mean platelet volume was well correlated with the platelet distribution width (rs=0.404, p<0.001) and the platelet count (rs=0.355, p=0.002). CONCLUSION The mean platelet volume and other platelet parameters may significantly aid the identification of diabetic pregnants at risk for vascular complications. The role and possible clinical relevance of these changes during diabetic pregnancy need to be investigated in further studies.
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Affiliation(s)
- Muhammet Erdal Sak
- Dicle University, School of Medicine, Department of Obstetrics And Gynecology, Diyarbakır, Turkey
| | - Hatice Ender Soydinç
- Dicle University, School of Medicine, Department of Obstetrics And Gynecology, Diyarbakır, Turkey
| | - Ali Ozler
- Dicle University, School of Medicine, Department of Obstetrics And Gynecology, Diyarbakır, Turkey
| | - Mehmet Sıddık Evsen
- Dicle University, School of Medicine, Department of Obstetrics And Gynecology, Diyarbakır, Turkey
| | - Abdülkadir Turgut
- Dicle University, School of Medicine, Department of Obstetrics And Gynecology, Diyarbakır, Turkey
| | - Sibel Sak
- Diyarbakır Maternity And Children Hospital, Department of Obstetrics And Gynecology, Diyarbakır, Turkey
| | - Talip Gül
- Dicle University, School of Medicine, Department of Obstetrics And Gynecology, Diyarbakır, Turkey
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Harrington JM, Scelsi C, Hartel A, Jones NG, Engstler M, Capewell P, MacLeod A, Hajduk S. Novel African trypanocidal agents: membrane rigidifying peptides. PLoS One 2012; 7:e44384. [PMID: 22970207 PMCID: PMC3436892 DOI: 10.1371/journal.pone.0044384] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2012] [Accepted: 08/03/2012] [Indexed: 11/21/2022] Open
Abstract
The bloodstream developmental forms of pathogenic African trypanosomes are uniquely susceptible to killing by small hydrophobic peptides. Trypanocidal activity is conferred by peptide hydrophobicity and charge distribution and results from increased rigidity of the plasma membrane. Structural analysis of lipid-associated peptide suggests a mechanism of phospholipid clamping in which an internal hydrophobic bulge anchors the peptide in the membrane and positively charged moieties at the termini coordinate phosphates of the polar lipid headgroups. This mechanism reveals a necessary phenotype in bloodstream form African trypanosomes, high membrane fluidity, and we suggest that targeting the plasma membrane lipid bilayer as a whole may be a novel strategy for the development of new pharmaceutical agents. Additionally, the peptides we have described may be valuable tools for probing the biosynthetic machinery responsible for the unique composition and characteristics of African trypanosome plasma membranes.
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Affiliation(s)
- John M. Harrington
- Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia, United States of America
| | - Chris Scelsi
- Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia, United States of America
| | - Andreas Hartel
- Department of Cell and Developmental Biology, Theodor-Boveri-Institute, University of Wuerzburg, Wuerzburg, Germany
| | - Nicola G. Jones
- Department of Cell and Developmental Biology, Theodor-Boveri-Institute, University of Wuerzburg, Wuerzburg, Germany
| | - Markus Engstler
- Department of Cell and Developmental Biology, Theodor-Boveri-Institute, University of Wuerzburg, Wuerzburg, Germany
| | - Paul Capewell
- Wellcome Trust Centre for Molecular Parasitology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Annette MacLeod
- Wellcome Trust Centre for Molecular Parasitology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Stephen Hajduk
- Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia, United States of America
- * E-mail:
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Rammaert B, Lanternier F, Poirée S, Kania R, Lortholary O. Diabetes and mucormycosis: A complex interplay. DIABETES & METABOLISM 2012; 38:193-204. [DOI: 10.1016/j.diabet.2012.01.002] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2011] [Accepted: 01/09/2012] [Indexed: 01/13/2023]
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