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Goswami P, Anand A. Impact of diabetes on healthcare utilization and expenditure among older adults in India. J Diabetes Metab Disord 2024; 23:593-601. [PMID: 38932864 PMCID: PMC11196526 DOI: 10.1007/s40200-023-01319-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 09/18/2023] [Indexed: 06/28/2024]
Abstract
Background and aims The present study aims to investigate the disparities in healthcare utilization and healthcare burden among individuals with and without diabetes. The prevalence of diabetes is more pronounced among older adults, which can detrimentally influence their health and quality of life while also restricting their capacity to self-manage and giving rise to competing healthcare demands. Thus, it is crucial to understand the implications of diabetes on healthcare demands and expenditures to mitigate its detrimental consequences. Methods Data was used from the initial round of the Longitudinal Aging Study in India (LASI), conducted in 2017-18. The analytical sample included 65,562 individuals aged 45 or above, and 8429 individuals were identified as having diabetes. The primary outcome variable was the out-of-pocket expenditure (OOPE) in the most recent hospitalization. Descriptive statistics and logistic regression are used to find the trend in the prevalence of morbidities both in diabetic and nondiabetic groups. Additionally, quantile regression was used to study the association between the presence of diabetes and the risk of excess healthcare expenditure calculated through out-of-pocket expenditure for hospitalization and expenditure on medicines. Results 16% of people with diabetes were hospitalized in the past year, compared to 9% without diabetes. The mean hospitalization length for diabetics was 13.6 days, compared to 6.5 for nondiabetics. Diabetes is significantly associated with higher OOPE for hospitalization across all quintiles, and its effect on hospitalization is weakest in the highest quintile. Having diabetes is also found to be significantly associated with the expenditure on medicines across all quintiles. Conclusion The study highlights the need for diabetes awareness programs and interventions integrated into national health policies. The quantile regression model provides crucial insights into the association between diabetes and OOPE for hospitalization and medicine The increase of OOPE for hospitalisation and medicine due to the presence of diabetes emphasizes the need to address the financial burden faced by people with diabetes, highlighting the urgency of prioritizing measures to improve access to affordable care. Supplementary Information The online version contains supplementary material available at 10.1007/s40200-023-01319-w.
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Affiliation(s)
- Puja Goswami
- International Institute for Population Sciences, Govandi Station Road, Deonar, Mumbai, 400088 India
| | - Abhishek Anand
- International Institute for Population Sciences, Govandi Station Road, Deonar, Mumbai, 400088 India
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Altaf N, Rehman NU, Karim N, Khan I, Halim SA, Alotaibi BS, Hamad RS, Batiha GES, Tayyeb JZ, Turkistani A, Khan A, Al-Harrasi A. Attenuation of Streptozotocin-Induced Diabetic Neuropathic Allodynia by Flavone Derivative Through Modulation of GABA-ergic Mechanisms and Endogenous Biomarkers. Neurochem Res 2024; 49:980-997. [PMID: 38170385 DOI: 10.1007/s11064-023-04078-5] [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: 09/03/2023] [Revised: 11/19/2023] [Accepted: 11/27/2023] [Indexed: 01/05/2024]
Abstract
Diabetic neuropathic pain is one of the most devasting disorders of peripheral nervous system. The loss of GABAergic inhibition is associated with the development of painful diabetic neuropathy. The current study evaluated the potential of 3-Hydroxy-2-methoxy-6-methyl flavone (3-OH-2'MeO6MF), to ameliorate peripheral neuropathic pain using an STZ-induced hyperglycemia rat model. The pain threshold was assessed by tail flick, cold, mechanical allodynia, and formalin test on days 0, 14, 21, and 28 after STZ administration accompanied by evaluation of several biochemical parameters. Administration of 3-OH-2'-MeO6MF (1,10, 30, and 100 mg/kg, i.p) significantly enhanced the tail withdrawal threshold in tail-flick and tail cold allodynia tests. 3-OH-2'-MeO6MF also increased the paw withdrawal threshold in mechanical allodynia and decreased paw licking time in the formalin test. Additionally, 3-OH-2'-MeO6MF also attenuated the increase in concentrations of myeloperoxidase (MPO), thiobarbituric acid reactive substances (TBARS), nitrite, TNF-α, and IL 6 along with increases in glutathione (GSH). Pretreatment of pentylenetetrazole (PTZ) (40 mg/kg, i.p.) abolished the antinociceptive effect of 3-OH-2'-MeO6MF in mechanical allodynia. Besides, the STZ-induced alterations in the GABA concentration and GABA transaminase activity attenuated by 3-OH-2'-MeO6MF treatment suggest GABAergic mechanisms. Molecular docking also authenticates the involvement of α2β2γ2L GABA-A receptors and GABA-T enzyme in the antinociceptive activities of 3-OH-2'-MeO6MF.
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Affiliation(s)
- Nouman Altaf
- Department of Pharmacy, University of Malakand, Chakdara, Lower Dir, KPK, Pakistan
| | - Najeeb Ur Rehman
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat al Mouz, Initial Campus, 616, Nizwa, Sultanate of Oman
| | - Nasiara Karim
- Department of Pharmacy, University of Malakand, Chakdara, Lower Dir, KPK, Pakistan.
- Department of Pharmacy, University of Peshawar, Peshawar, KPK, Pakistan.
| | - Imran Khan
- Department of Pharmacy, University of Swabi, Swabi, KPK, Pakistan
| | - Sobia Ahsan Halim
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat al Mouz, Initial Campus, 616, Nizwa, Sultanate of Oman
| | - Badriyah S Alotaibi
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, P.O. Box 84428, 11671, Riyadh, Saudi Arabia
| | - Rabab S Hamad
- Biological Sciences Department, College of Science, King Faisal University, 31982, Al Ahsa, Saudi Arabia
- Central Laboratory, Theodor Bilharz Research Institute, Giza, 12411, Egypt
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, 22511, AlBeheira, Egypt
| | - Jehad Zuhair Tayyeb
- Department of Clinical Biochemistry, College of Medicine, University of Jeddah, 23890, Jeddah, Saudi Arabia
| | - Areej Turkistani
- Department of Pharmacology and Toxicology, College of Medicine, Taif University, 21944, Taif, Kingdom of Saudi Arabia
| | - Ajmal Khan
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat al Mouz, Initial Campus, 616, Nizwa, Sultanate of Oman.
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, Birkat al Mouz, Initial Campus, 616, Nizwa, Sultanate of Oman.
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Gupta S, Thool AR. A Narrative Review of Retinopathy in Diabetic Patients. Cureus 2024; 16:e52308. [PMID: 38357071 PMCID: PMC10866186 DOI: 10.7759/cureus.52308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 01/15/2024] [Indexed: 02/16/2024] Open
Abstract
Patients with diabetes may be at risk of ocular diseases, like retinopathy due to diabetes and oedema of the eye. Patients with retinopathy due to diabetes experience constant injury to the retina and the posterior end of the eye, which is light-sensitive. It is a prominent complication faced by diabetics that threatens a patient's vision. Diabetes can inhibit the body's potential to ingest and maintain blood glycemic levels, resulting in several health problems. Excessive glucose in the blood can affect the eyes and other organs of the body. Diabetes has an effect on the blood supply system of the retina over a prolonged period of time. Diabetes-related retinopathy can lead to blindness as fluid can flow into the macula, which is essential for maintaining a clear visual field. The macula, despite its small size, is the region that enables us to comprehend colours and fine peculiarities well. The fluid swells the macula, leading to an impaired visual field. The weak, irregular blood vessels formed during neovascularization can potentially haemorrhage into the posterior end of the eye, obstructing the visual field. Blood vessels of the eye leak blood and other fluids, causing retinal tissue enlargement and eyesight clouding. Typically, the illness affects both eyes. Diabetes retinopathy is more likely to develop as a person's diabetes progresses. If untreated, retinopathy due to diabetes can result in blindness.
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Affiliation(s)
- Somya Gupta
- Department of Ophthalmology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Archana R Thool
- Department of Ophthalmology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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Lee DJ, Litwin B, Fernandez-Fernandez A, Gailey R. The experience of self-managing from the perspective of persons with lower limb loss, prosthetists, and physical therapists. Disabil Rehabil 2023; 45:3284-3292. [PMID: 36121801 DOI: 10.1080/09638288.2022.2122599] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 08/31/2022] [Accepted: 09/04/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE Persons with lower limb loss (PwLLL) must self-manage their residual limb and their prosthesis to prevent self-management related complications (SMRC). However, the experience of PwLLL as it relates to self-management has not been reported. Thus, the purpose of this study was to explore the experience of self-management from the perspective of PwLLL, prosthetists, and physical therapists. METHODS This study had a qualitative design. Twenty-three participants were interviewed (PwLLL = 10, prosthetists = 7, physical therapists = 6). Interviews were transcribed and then coded using constant comparison. RESULTS Four prominent themes were developed from the transcripts: (1) embodying the duty of self-management, (2) being a vigilant self-advocate, (3) setting goals collaboratively, and (4) making informed decisions. Each of the four themes were influenced by the health beliefs of the PwLLL, specifically motivation and presence of an internal locus of control. CONCLUSION Clinicians should emphasize the therapeutic relationship, including open communication, collaborative goal setting, and promoting an internal locus of control in interactions with PwLLL, as it may play a role in decreasing SMRC and improving clinical outcomes.Implications for rehabilitationSelf-management is a crucial aspect of preventing secondary complications associated with limb loss and prosthesis use.Self-management requires an internal locus of control, problem-solving abilities, and foundational knowledgeClinicians can promote self-management through collaborative goal setting and systematic education.
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Affiliation(s)
- Daniel J Lee
- Department of Physical Therapy, Touro College, Bayshore, NY, USA
| | - Bini Litwin
- Department of Physical Therapy, Nova Southeastern University, Davie, FL, USA
| | | | - Robert Gailey
- Department of Physical Therapy, University of Miami, Miami, FL, USA
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Chu TW, Hsieh TH, Lin TY, Hung SC. Association of diabetic retinopathy with risk of developing cardiovascular diseases in patients undergoing hemodialysis: A population-based cohort study. Nutr Metab Cardiovasc Dis 2023; 33:1565-1573. [PMID: 37246078 DOI: 10.1016/j.numecd.2023.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/18/2023] [Accepted: 05/05/2023] [Indexed: 05/30/2023]
Abstract
BACKGROUND AND AIMS While patients undergoing dialysis have substantially increased cardiovascular event rates compared with the general population, predicting individual risk remains difficult. Whether diabetic retinopathy (DR) is associated with cardiovascular diseases in this population is unclear. METHODS AND RESULTS We conducted a nationwide cohort study of 27,686 incident hemodialysis patients with type 2 diabetes who were enrolled in Taiwan's National Health Insurance Research Database between January 1, 2010, and December 31, 2014, and had follow-up data until December 31, 2015. The primary outcome was a composite of macrovascular events, including acute coronary syndrome (ACS), acute ischemic stroke, and peripheral artery disease (PAD). A total of 10,537 (38.1%) patients had DR at baseline. We matched 9164 patients without DR (mean age, 63.7 years; 44.0% women) to 9164 patients with DR (mean age, 63.5 years; 43.8% women) by propensity score. During a median follow-up of 2.4 years, 5204 patients in the matched cohort experienced a primary outcome. The presence of DR was associated with a higher risk of a primary outcome (subdistribution hazard ratio [sHR] 1.07; 95% CI, 1.01-1.13), which reflected a higher risk of acute ischemic stroke (sHR 1.26; 95% CI, 1.14-1.39) and PAD (sHR 1.14; 95% CI, 1.05-1.25) but not ACS (sHR 0.99; 95% CI, 0.92-1.06). CONCLUSIONS The presence of DR signifies an increased risk of acute ischemic stroke and PAD in hemodialysis patients with type 2 diabetes, independent of the known risk factors. These results highlight the need for more comprehensive cardiovascular assessment and management in hemodialysis patients with DR.
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Affiliation(s)
- Ting-Wen Chu
- Department of Ophthalmology, Mackay Memorial Hospital, Taipei, Taiwan; Department of Medicine, MacKay Medical College, New Taipei City, Taiwan
| | - Tsung-Han Hsieh
- Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
| | - Ting-Yun Lin
- Division of Nephrology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, School of Medicine, Tzu Chi University, Hualien, Taiwan.
| | - Szu-Chun Hung
- Division of Nephrology, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, School of Medicine, Tzu Chi University, Hualien, Taiwan.
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Rosella LC, Kornas K, Negatu E, Zhou L. Variations in all-cause mortality, premature mortality and cause-specific mortality among persons with diabetes in Ontario, Canada. BMJ Open Diabetes Res Care 2023; 11:11/3/e003378. [PMID: 37130629 PMCID: PMC10163552 DOI: 10.1136/bmjdrc-2023-003378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 04/15/2023] [Indexed: 05/04/2023] Open
Abstract
INTRODUCTION Patients with diabetes have a higher risk of mortality compared with the general population. Large population-based studies that quantify variations in mortality risk for patients with diabetes among subgroups in the population are lacking. This study aimed to examine the sociodemographic differences in the risk of all-cause mortality, premature mortality, and cause-specific mortality in persons diagnosed with diabetes. RESEARCH DESIGN AND METHODS We conducted a population-based cohort study of 1 741 098 adults diagnosed with diabetes between 1994 and 2017 in Ontario, Canada using linked population files, Canadian census, health administrative and death registry databases. We analyzed the association between sociodemographics and other covariates on all-cause mortality and premature mortality using Cox proportional hazards models. A competing risk analysis using Fine-Gray subdistribution hazards models was used to analyze cardiovascular and circular mortality, cancer mortality, respiratory mortality, and mortality from external causes of injury and poisoning. RESULTS After full adjustment, individuals with diabetes who lived in the lowest income neighborhoods had a 26% (HR 1.26, 95% CI 1.25 to 1.27) increased hazard of all-cause mortality and 44% (HR 1.44, 95% CI 1.42 to 1.46) increased risk of premature mortality, compared with individuals with diabetes living in the highest income neighborhoods. In fully adjusted models, immigrants with diabetes had reduced risk of all-cause mortality (HR 0.46, 95% CI 0.46 to 0.47) and premature mortality (HR 0.40, 95% CI 0.40 to 0.41), compared with long-term residents with diabetes. Similar HRs associated with income and immigrant status were observed for cause-specific mortality, except for cancer mortality, where we observed attenuation in the income gradient among persons with diabetes. CONCLUSIONS The observed mortality variations suggest a need to address inequality gaps in diabetes care for persons with diabetes living in the lowest income areas.
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Affiliation(s)
- Laura C Rosella
- Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- ICES, Toronto, Ontario, Canada
- Institute for Better Health, Trillium Health Partners, Mississauga, Ontario, Canada
- Laboratory Medicine and Pathobiology, Temerty Faculty of Medicine, Toronto, Ontario, Canada
| | - Kathy Kornas
- Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Ednah Negatu
- Division of Epidemiology, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
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Banu HAN, Kalluraya B, Manju N, Ramu R, Patil SM, Lokanatha Rai KM, Kumar N. Synthesis of Pyrazoline‐Embedded 1,2,3‐Triazole Derivatives via 1,3‐Dipolar Cycloaddition Reactions with in vitro and in silico Studies. ChemistrySelect 2023. [DOI: 10.1002/slct.202203578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Affiliation(s)
- H. A. Nagma Banu
- Department of studies in Chemistry Mangalore University Mangalagangothri Konaje 574199 Karnataka India
| | - Balakrishna Kalluraya
- Department of studies in Chemistry Mangalore University Mangalagangothri Konaje 574199 Karnataka India
| | - N. Manju
- Department of studies in Chemistry Mangalore University Mangalagangothri Konaje 574199 Karnataka India
| | - Ramith Ramu
- Department of Biotechnology and Bioinformatics School of Life Sciences JSS Academy of Higher Education and Research, SS Nagar Mysuru 570015 Karnataka India
| | - Shashank M. Patil
- Department of Biotechnology and Bioinformatics School of Life Sciences JSS Academy of Higher Education and Research, SS Nagar Mysuru 570015 Karnataka India
| | - K. M. Lokanatha Rai
- Department of studies in Chemistry PG centre, Chikkaaluvara Mangalore university Mangalagangothri Karnataka India
| | - Naveen Kumar
- Department of Chemistry Sri Dharmasthala Manjunatheshwara College (Autonomous) Ujire 574240 Karnataka India
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Parsons RF, Tantisattamo E, Cheungpasitporn W, Basu A, Lu Y, Lentine KL, Woodside KJ, Singh N, Scalea J, Alhamad T, Dunn TB, Rivera FHC, Parajuli S, Pavlakis M, Cooper M. Comprehensive review: Frailty in pancreas transplant candidates and recipients. Clin Transplant 2023; 37:e14899. [PMID: 36591953 DOI: 10.1111/ctr.14899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 12/22/2022] [Accepted: 12/29/2022] [Indexed: 01/03/2023]
Abstract
Well-selected patients with kidney disease and diabetes mellitus who undergo simultaneous kidney-pancreas transplantation often experience dramatic improvements in quality of life and long-term survival compared to those who remain on medical therapy. Over the past several years the importance of frailty in the pancreas transplant candidate and recipient populations has grown. More patients with advanced age have entered the waitlist, and complications from prolonged diabetes, even in younger patients, have created increased evidence of risk for frailty. Given these concerns, and the broad challenges facing pancreas transplantation volumes overall, we generated this review to help establish the impact and implications. We summarize the interplay of immunological factors, aging, environmental factors, diabetes mellitus, and chronic kidney disease that put these patients at risk for frailty. We discuss its measurement and recommend a combination of two instruments (both well-validated and one entirely objective). We describe the outcomes for patients before and after pancreas transplantation who may have frailty, and what interventions can be taken to mitigate its effects. Broader investigation into frailty in the pancreas transplant population is needed to better understand how to select patients for pancreas transplantation and to how manage its consequences thereafter.
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Affiliation(s)
| | | | | | | | - Yee Lu
- University of Michigan, Ann Arbor, Michigan, USA
| | | | | | - Neeraj Singh
- John C. McDonald Regional Transplant Center, Shreveport, Los Angeles, USA
| | - Joseph Scalea
- Medical University of South Carolina, Charleston, South Carolina, USA
| | - Tarek Alhamad
- Washington University School of Medicine, St. Louis, Missouri, USA
| | - Ty B Dunn
- University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | | | | - Martha Pavlakis
- Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Matthew Cooper
- Medstar Georgetown Transplant Institute, Washington DC, USA
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Muacevic A, Adler JR. An Assessment of the 10-Year Risk of Developing Type 2 Diabetes Among Saudi Adults Based on the Finnish Diabetes Risk Score. Cureus 2022; 14:e32034. [PMCID: PMC9709506 DOI: 10.7759/cureus.32034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/29/2022] [Indexed: 12/05/2022] Open
Abstract
Background and objective Diabetes mellitus (DM) is a chronic, metabolic disease characterized by elevated blood glucose levels that eventually lead to several acute and chronic complications. Type 2 DM (T2DM) is a major healthcare problem globally as well as in the Kingdom of Saudi Arabia (KSA). Predicting and identifying people at high risk for developing T2DM will help implement preventive measures for these individuals. In light of this, the present study was designed to estimate the 10-year risk of developing T2DM among the Saudi general population. Methodology A descriptive, cross-sectional survey involving 15,509 Saudi individuals was undertaken. The participants were selected from all 13 provinces of KSA based on stratified random sampling. The Finnish Diabetes Risk Score (FINDRISC), a validated tool for T2DM risk assessment, was employed. Descriptive and chi-square analyses were used. Results The mean age of the participants was 28.33 years. Subjects with a moderate, high, and very high risk of developing T2DM within the next 10 years comprised approximately 18% of the sample. The mean FINDRISC was 7.53 [standard deviation (SD): 4.28], which is considered a level associated with a slightly elevated risk of developing T2DM. Of note, 938 participants (6.05%) among the sample population had a high risk of developing T2DM as predicted by FINDRISC. Education, daily physical activity, high blood glucose, and family history of DM were significantly higher in females compared to males (p<0.001). On the other hand, smoking rates and use of antihypertensive medications were substantially higher among males (p<0.001). Conclusion Based on our findings, approximately 18% of the Saudi general population has a moderate to high risk of developing T2DM. T2DM risk assessment should be widely and regularly practiced by general practitioners and internists as part of national programs for diabetes prevention.
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Pandya Thakkar N, Pereira BMV, Katakia YT, Ramakrishnan SK, Thakar S, Sakhuja A, Rajeev G, Soorya S, Thieme K, Majumder S. Elevated H3K4me3 Through MLL2-WDR82 upon Hyperglycemia Causes Jagged Ligand Dependent Notch Activation to Interplay with Differentiation State of Endothelial Cells. Front Cell Dev Biol 2022; 10:839109. [PMID: 35392173 PMCID: PMC8982561 DOI: 10.3389/fcell.2022.839109] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 02/07/2022] [Indexed: 01/09/2023] Open
Abstract
Endothelial-to-mesenchymal transition (EndMT) is a hallmark of diabetes-associated vascular complications. Epigenetic mechanisms emerged as one of the key pathways to regulate diabetes-associated complications. In the current study, we aimed to determine how abrupt changes in histone 3 lysine 4 tri-methylation (H3K4me3) upon hyperglycemia exposure reprograms endothelial cells to undergo EndMT. Through in vitro studies, we first establish that intermittent high-glucose exposure to EC most potently induced partial mesenchyme-like characteristics compared with transient or constant high-glucose-challenged endothelial cells. In addition, glomerular endothelial cells of BTBR Ob/Ob mice also exhibited mesenchymal-like characteristics. Intermittent hyperglycemia-dependent induction of partial mesenchyme-like phenotype of endothelial cells coincided with an increase in H3K4me3 level in both macro- and micro-vascular EC due to selective increase in MLL2 and WDR82 protein of SET1/COMPASS complex. Such an endothelial-specific heightened H3K4me3 level was also detected in intermittent high-glucose-exposed rat aorta and in kidney glomeruli of Ob/Ob mice. Elevated H3K4me3 enriched in the promoter regions of Notch ligands Jagged1 and Jagged2, thus causing abrupt expression of these ligands and concomitant activation of Notch signaling upon intermittent hyperglycemia challenge. Pharmacological inhibition and/or knockdown of MLL2 in cells in vitro or in tissues ex vivo normalized intermittent high-glucose-mediated increase in H3K4me3 level and further reversed Jagged1 and Jagged2 expression, Notch activation and further attenuated acquisition of partial mesenchyme-like phenotype of endothelial cells. In summary, the present study identifies a crucial role of histone methylation in hyperglycemia-dependent reprograming of endothelial cells to undergo mesenchymal transition and indicated that epigenetic pathways contribute to diabetes-associated vascular complications.
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Affiliation(s)
- Niyati Pandya Thakkar
- Department of Biological Sciences, Birla Institute of Technology and Science (BITS), Pilani Campus, Pilani, India
| | - Beatriz Maria Veloso Pereira
- Laboratório de Bases Celulares e Moleculares da Fisiologia Renal, Departamento de Fisiologia e Biofísica, Instituto de Ciências Biomédicas, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Yash T. Katakia
- Department of Biological Sciences, Birla Institute of Technology and Science (BITS), Pilani Campus, Pilani, India
| | - Shyam Kumar Ramakrishnan
- Department of Biological Sciences, Birla Institute of Technology and Science (BITS), Pilani Campus, Pilani, India
| | - Sumukh Thakar
- Department of Biological Sciences, Birla Institute of Technology and Science (BITS), Pilani Campus, Pilani, India
| | - Ashima Sakhuja
- Department of Biological Sciences, Birla Institute of Technology and Science (BITS), Pilani Campus, Pilani, India
| | - Gayathry Rajeev
- Department of Biological Sciences, Birla Institute of Technology and Science (BITS), Pilani Campus, Pilani, India
| | - S. Soorya
- Department of Biological Sciences, Birla Institute of Technology and Science (BITS), Pilani Campus, Pilani, India
| | - Karina Thieme
- Laboratório de Bases Celulares e Moleculares da Fisiologia Renal, Departamento de Fisiologia e Biofísica, Instituto de Ciências Biomédicas, Universidade de Sao Paulo, Sao Paulo, Brazil
| | - Syamantak Majumder
- Department of Biological Sciences, Birla Institute of Technology and Science (BITS), Pilani Campus, Pilani, India
- *Correspondence: Syamantak Majumder,
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Yang L, Zhang Z, Wang D, Jiang Y, Liu Y. Targeting mTOR Signaling in Type 2 Diabetes Mellitus and Diabetes Complications. Curr Drug Targets 2022; 23:692-710. [PMID: 35021971 DOI: 10.2174/1389450123666220111115528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/21/2021] [Accepted: 12/01/2021] [Indexed: 11/22/2022]
Abstract
The mechanistic target of rapamycin (mTOR) is a pivotal regulator of cell metabolism and growth. In the form of two different multi-protein complexes, mTORC1 and mTORC2, mTOR integrates cellular energy, nutrient and hormonal signals to regulate cellular metabolic homeostasis. In type 2 diabetes mellitus (T2DM) aberrant mTOR signaling underlies its pathological conditions and end-organ complications. Substantial evidence suggests that two mTOR-mediated signaling schemes, mTORC1-p70S6 kinase 1 (S6K1) and mTORC2-protein kinase B (AKT), play a critical role in insulin sensitivity and that their dysfunction contributes to development of T2DM. This review summaries our current understanding of the role of mTOR signaling in T2DM and its associated complications, as well as the potential use of mTOR inhibitors in treatment of T2DM.
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Affiliation(s)
- Lin Yang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Zhixin Zhang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Doudou Wang
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Yu Jiang
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Ying Liu
- School of Life Sciences, Beijing University of Chinese Medicine, Beijing 102488, China
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Thota RN, Chatterjee P, Pedrini S, Hone E, Ferguson JJA, Garg ML, Martins RN. Association of Plasma Neurofilament Light Chain With Glycaemic Control and Insulin Resistance in Middle-Aged Adults. Front Endocrinol (Lausanne) 2022; 13:915449. [PMID: 35795150 PMCID: PMC9251066 DOI: 10.3389/fendo.2022.915449] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 05/16/2022] [Indexed: 12/15/2022] Open
Abstract
AIMS This study aimed to determine the association of plasma neurofilament light (NfL), a marker of neurodegeneration, with diabetes status and glycaemic parameters in people with normal glycaemia (NG), pre-diabetes (PD) and type 2 diabetes (T2D). METHODS Clinical and descriptive data for the diagnostic groups, NG (n=30), PD (n=48) and T2D (n=29), aged between 40 and 75 years were included in this cross-sectional analysis. Plasma NfL levels were analyzed using the ultra-sensitive single-molecule array (Simoa) platform. RESULTS A positive correlation was evident between plasma NfL and fasting glucose (r = 0.2824; p = 0.0032). Plasma NfL levels were not correlated with fasting insulin and insulin resistance. Plasma Nfl levels were significantly different across the diabetes groups (T2D >PD >NG, p=0.0046). Post-hoc analysis indicated significantly higher plasma NfL levels in the T2D [12.4 (5.21) pg/mL] group than in the PD [10.2 (4.13) pg/mL] and NG [8.37 (5.65) pg/mL] groups. The relationship between diabetes status and NfL remained significant after adjusting for age, sex, BMI, HOMA-IR and physical activity (adjusted r2 = 0.271, p = 0.035). CONCLUSIONS These results show biomarker evidence of neurodegeneration in adults at risk or with T2D. Larger sample size and longitudinal analysis are required to better understand the application of NfL in people with risk and overt T2D.
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Affiliation(s)
- Rohith N. Thota
- Macquarie Medical School, Macquarie University, North Ryde, NSW, Australia
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
| | - Pratishtha Chatterjee
- Macquarie Medical School, Macquarie University, North Ryde, NSW, Australia
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Steve Pedrini
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Eugene Hone
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Jessica J. A. Ferguson
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
| | - Manohar L. Garg
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
| | - Ralph N. Martins
- Macquarie Medical School, Macquarie University, North Ryde, NSW, Australia
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
- Australian Alzheimer’s Research Foundation, Nedlands, WA, Australia
- School of Psychiatry and Clinical Neurosciences, University of Western Australia, Crawley, WA, Australia
- The KaRa Institute of Neurological Disease, Macquarie Park, NSW, Australia
- *Correspondence: Ralph N. Martins,
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Kamin M, Khan SA, Raja UY, Ishtiaq O, Malik A, Rehman T, Wahab MU. Efficacy and Safety of Dulaglutide in Type 2 Diabetes Patients in Endocrinology Clinics of Islamabad, Pakistan. Indian J Endocrinol Metab 2021; 25:456-461. [PMID: 35300442 PMCID: PMC8923314 DOI: 10.4103/ijem.ijem_402_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 10/18/2021] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE Our objective was to ascertain the efficacy and safety of once weekly Dulaglutide among patients with Type 2 diabetes of Pakistani origin. METHODS This prospective cohort study was conducted at the Endocrinology Clinics of Shifa International Hospital, Islamabad and Umar Diabetes and Foot Care Centre, Islamabad, Pakistan during the period from July 2020 to December 2020. Dulaglutide at the dose of 1.5 mg once weekly was initiated in patients with BMI >28 and suboptimal glucose control in the background of Type 2 Diabetes who were also taking one or more of oral anti-diabetic and/or insulin therapy. RESULTS Mean age of patient cohort (n = 148) was 49.51 years (SD +/- 12.15) with 53.5% (n = 85) having type 2 diabetes for a duration of over 10 years. Mean weight was 93.2 kg at baseline with end of study mean weight being 90.7 kg. Mean HbA1c at baseline was 9.2%, which improved to 8.05% at the end of study. The main side-effects were nausea in 32%, vomiting in 8%, and diarrhea in 7% with 19% discontinuation rate due to cost and side-effects. CONCLUSION Dulaglutide as a therapy demonstrated favorable HbA1c and weight reduction in obese type 2 diabetes patients of Pakistani origin.
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Affiliation(s)
- Matiullah Kamin
- Department of Endocrine, Bolan University of Medical and Health Sciences, Quetta, Pakistan
| | - Sajjad Ali Khan
- Department of Endocrine, Aga Khan University Hospital, Karachi, Pakistan
| | - Umar Yousaf Raja
- Department of Endocrine, Shifa International Hospital, Islamabad, Pakistan
| | - Osama Ishtiaq
- Department of Endocrine, Shifa International Hospital, Islamabad, Pakistan
| | - Asmara Malik
- Department of Community Medicine, National University of Medical Sciences, Karachi, Pakistan
| | - Tejhmal Rehman
- Department of Endocrine, Shifa International Hospital, Islamabad, Pakistan
| | - Muhammad Umar Wahab
- Department of Diabetes, Umar Diabetes and Foot Care Clinic and Umar Diabetes Foundation, Islamabad, Pakistan
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Mahamad AT, Miaffo D, Poualeu Kamani SL, Mahamat O, Kamanyi A, Wansi Ngnokam SL. Glucose, lipid and oxidative stress lowering activity of the aqueous extract from leafy stems of Cissus polyantha Gilg & Brandt in dexamethasone-induced hyperglycemia in rats. J Diabetes Metab Disord 2021; 19:1527-1535. [PMID: 33520850 DOI: 10.1007/s40200-020-00687-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 11/04/2020] [Indexed: 12/26/2022]
Abstract
Background Diabetes mellitus is a metabolic disorder characterised by chronic hyperglycemia. The present research work aimed to evaluate the hypoglycaemic, hypolipidemic and antioxidant effects of leafy stems of Cissus polyantha Gilg & Brandt in insulin resistant rats. Methods The oral glucose tolerance test (OGTT) was performed in normal rats. Hyperglycemia was induced for 8 days by a daily subcutaneous injection of dexamethasone (1 mg/kg) one hour after pretreatment of animals with metformin (40 mg/kg) and C. polyantha extract (111, 222 and 444 mg/kg). Body weight, blood glucose, insulin level, lipid profile, insulin biomarkers, cardiovascular indices and oxidative stress biomarkers were evaluated. Results For OGTT, the extract (444 mg/kg) produced a significant drop in blood sugar at the 60th (p < 0.01), 90th (p < 0.01) and 120th min (p < 0.05). Morever, the extract at doses of 222 and 111 mg/kg significantly reduced blood sugar at the 60th (p < 0.01) and 90th min (p < 0.05) respectively. Otherwise, C. polyantha (444 and 222 mg/kg) significantly (p < 0.001) increased body weight and decreased blood sugar on the 4th and 8th days of treatment in insulin resistant rats. The extract also significantly decreased (p < 0.001) serum insulin level, hyperlipidemia, insulin resistance index and cardiovascular indices, and increased gluthathione level, and superoxide dismutase and catalase activity. Conclusion The aqueous extract of Cissus polyantha leafy stems (AECPLS) possess hypoglycemic, hypolipidemic and antioxidant activities that could justify its use in traditional medicine for the prevention and treatment of diabetes mellitus and its complications.
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Affiliation(s)
- Abba Talba Mahamad
- Department of Biological Sciences, Faculty of Sciences, University of Maroua, Maroua, Cameroon
| | - David Miaffo
- Department of Life and Earth Sciences, Higher Teachers' Training College, University of Maroua, Maroua, Cameroon
| | | | - Oumar Mahamat
- Department of Biological Sciences, Faculty of Sciences, University of Bamenda, Bambili, Cameroon
| | - Albert Kamanyi
- Department of Animal Biology, Faculty of Sciences, University of Dschang, Dschang, Cameroon
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Liu X, Liu H, Lu X, Tombran-Tink J, Zhao S. PEDF Attenuates Ocular Surface Damage in Diabetic Mice Model Through Its Antioxidant Properties. Curr Eye Res 2020; 46:302-308. [PMID: 32862727 DOI: 10.1080/02713683.2020.1805770] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
PURPOSE To investigate the antioxidative effect and mechanism of pigment epithelium-derived factor (PEDF) on the ocular surface damage in diabetic mice. METHODS C57BL/6 mice were injected intraperitoneally with streptozocin to generate diabetic models and then 50 nM PEDF or artificial tears were used to treat the diabetic mice. Treatment was given three times a day for eight weeks. Corneal epithelial damage, corneal sensitivity, and tear volume were quantified by fluorescein staining, esthesiometer, and phenol red cotton thread, respectively. Animals were sacrificed at 16 weeks after diabetes and the whole globe specimens were subjected to histochemical staining. Reactive oxygen species (ROS) generation was detected by 2',7-dichlorodihydrofluorescein probe. The levels of receptor for advanced glycation end products (RAGE) and superoxide dismutase 1 (SOD1) were examined by quantitative real-time PCR and western blotting. RESULTS Topical application of PEDF improved corneal epithelial damage, increased corneal sensitivity, and tear volume in diabetic mice. ROS levels in the cornea were significantly higher in the diabetic mice than in the normal mice. Moreover, PEDF attenuated the accumulation of ROS, decreased the expression of RAGE, and elevated SOD1 expression in the cornea. CONCLUSIONS Topical application of PEDF can alleviate diabetes-related ocular surface damage and increase tear volume, along with the improvement of oxidative stress status.
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Affiliation(s)
- Xuemei Liu
- College of Optometry and Ophthalmology, Tianjin Medical University Eye Hospital, Tianjin Medical University Eye Institute, Tianjin Medical University , Tianjin, China
| | - Hui Liu
- College of Optometry and Ophthalmology, Tianjin Medical University Eye Hospital, Tianjin Medical University Eye Institute, Tianjin Medical University , Tianjin, China
| | - Xiaoxiao Lu
- College of Optometry and Ophthalmology, Tianjin Medical University Eye Hospital, Tianjin Medical University Eye Institute, Tianjin Medical University , Tianjin, China
| | - Joyce Tombran-Tink
- Department of Neural and Behavioral Sciences and Department of Ophthalmology, Penn State College of Medicine , Hershey, PA, USA
| | - Shaozhen Zhao
- College of Optometry and Ophthalmology, Tianjin Medical University Eye Hospital, Tianjin Medical University Eye Institute, Tianjin Medical University , Tianjin, China
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Understanding Diabetic Neuropathy: Focus on Oxidative Stress. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:9524635. [PMID: 32832011 PMCID: PMC7422494 DOI: 10.1155/2020/9524635] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 07/22/2020] [Indexed: 02/06/2023]
Abstract
Diabetic neuropathy is one of the clinical syndromes characterized by pain and substantial morbidity primarily due to a lesion of the somatosensory nervous system. The burden of diabetic neuropathy is related not only to the complexity of diabetes but also to the poor outcomes and difficult treatment options. There is no specific treatment for diabetic neuropathy other than glycemic control and diligent foot care. Although various metabolic pathways are impaired in diabetic neuropathy, enhanced cellular oxidative stress is proposed as a common initiator. A mechanism-based treatment of diabetic neuropathy is challenging; a better understanding of the pathophysiology of diabetic neuropathy will help to develop strategies for the new and correct diagnostic procedures and personalized interventions. Thus, we review the current knowledge of the pathophysiology in diabetic neuropathy. We focus on discussing how the defects in metabolic and vascular pathways converge to enhance oxidative stress and how they produce the onset and progression of nerve injury present in diabetic neuropathy. We discuss if the mechanisms underlying neuropathy are similarly operated in type I and type II diabetes and the progression of antioxidants in treating diabetic neuropathy.
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Kamble SP, Ghadyale VA, Patil RS, Haldavnekar VS, Arvindekar AU. Inhibition of GLUT2 transporter by geraniol from Cymbopogon martinii: a novel treatment for diabetes mellitus in streptozotocin-induced diabetic rats. J Pharm Pharmacol 2019; 72:294-304. [DOI: 10.1111/jphp.13194] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 10/21/2019] [Indexed: 12/13/2022]
Abstract
Abstract
Objective
To isolate and identify the bioactive component from Cymbopogon martinii having GLUT2 transporter inhibitory activity – towards development of a novel strategy for treatment of diabetes mellitus.
Method
Isolation of bioactive component was carried out using differential solvent extraction, HPTLC and HPLC, and identification was done by GC-MS. In-vitro studies on intestine, liver, kidney and in-vivo assessment by OGTT and long-term treatment on diabetic rats were carried out.
Key findings
Geraniol was isolated and identified as bioactive component. Intestinal glucose absorption demonstrated 60.28% inhibition of transport at 648.34 μm of geraniol. It was found to inhibit glucose release from liver on adrenaline challenge by 89.82% at 324.17 μm/ml. Kidney glycogen content doubled using 648.34 μm of geraniol as compared to control. Geraniol demonstrated 2.14 times higher renal glucose output than diabetic control. OGTT demonstrated prevention of postprandial spikes. Prolonged treatment for 60 days with 29.37 mm/kg B.W. twice a day of geraniol improved the lipid profile, HbA1C levels and renal parameters. In mRNA studies for 10 days, over expression of GLUT2 was prevented by geraniol.
Conclusions
Inhibition of GLUT2 by geraniol has the potential to reduce hyperglycaemia and prevent secondary complications in diabetes.
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Seven E, Yıldız S, Tekin S, Altaş AS, Özer MD, Batur M, Üçler R, Yaşar T. Effect of Insulin Therapy on Ocular Biometric Parameters in Diabetic Patients. J Ocul Pharmacol Ther 2019; 36:102-108. [PMID: 31644372 DOI: 10.1089/jop.2019.0070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Purpose: To evaluate effects of insulin on ocular parameters in patients with type 2 diabetes mellitus who start insulin therapy. Methods: In this prospective study, ocular biometric parameters were obtained using optical biometer (Lenstar LS900®; Haag-Streit AG) and refraction test (ARK-510A Auto refracto-keratometer; Nidek Co. Ltd, Aichi, Japan) before and at 3 months after initiating insulin therapy. In addition, patients' fasting blood glucose (FBG), glycosylated hemoglobin (HbA1C), and blood lipid levels were measured at the same time points. Pretreatment and post-treatment results were compared. In addition, associations between ocular parameters with initial dose and type of insulin treatment regimen, HbA1C, and FBG levels were evaluated. Results: The patients' mean age was 51.2 ± 12.9 (18-73) years. Post-treatment HbA1C and FBG levels (8.5% ± 2.5% and 188.1 ± 111.2 mg/dL, respectively) were significantly lower than pretreatment values (12% ± 1.4% and 325.3 ± 95.7 mg/dL, respectively; P < 0.001 for both). There was a significant positive correlation between the change in HbA1C and the change in lens thickness (P = 0.03), and a significant negative correlation between the change in FBG and the change in the spherical equivalent refraction (P = 0.045). Insulin dose and treatment regimen type were not significantly correlated with ocular parameters (P > 0.05). Conclusion: HbA1C-lowering glycemic effect of insulin was correlated with a small decrease in lens thickness. Long-term, randomized controlled trials including larger patient numbers are needed to shed light on the long-term effects of insulin use and glycemic control on ocular parameters.
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Affiliation(s)
- Erbil Seven
- Department of Ophthalmology, Faculty of Medicine, Van Yüzüncü Yil University, Van, Turkey
| | - Saliha Yıldız
- Department of Endocrinology, Faculty of Medicine, Van Yüzüncü Yil University, Van, Turkey
| | - Serek Tekin
- Department of Ophthalmology, Faculty of Medicine, Van Yüzüncü Yil University, Van, Turkey
| | - Ahmet Serkan Altaş
- Department of Ophthalmology, Faculty of Medicine, Van Yüzüncü Yil University, Van, Turkey
| | - Muhammet Derda Özer
- Department of Ophthalmology, Faculty of Medicine, Van Yüzüncü Yil University, Van, Turkey
| | - Muhammed Batur
- Department of Ophthalmology, Faculty of Medicine, Van Yüzüncü Yil University, Van, Turkey
| | - Rıfkı Üçler
- Department of Endocrinology, Faculty of Medicine, Van Yüzüncü Yil University, Van, Turkey
| | - Tekin Yaşar
- Department of Ophthalmology, Beyoglu Eye and Research Hospital, Istanbul, Turkey
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Sun J, Chen F, Braun C, Zhou YQ, Rittner H, Tian YK, Cai XY, Ye DW. Role of curcumin in the management of pathological pain. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2018; 48:129-140. [PMID: 30195871 DOI: 10.1016/j.phymed.2018.04.045] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 03/12/2018] [Accepted: 04/16/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Pathological pain conditions can be triggered after peripheral nerve injury and/or inflammation. It is a major clinical problem that is poorly treated with available therapeutics. Curcumin is a phenolic compound derived from Curcuma longa, being widely used for its antioxidant, anti-inflammatory and immunomodulatory effects. PURPOSE This review systematically summarized updated information on the traditional uses of curcumin in order to explore antinociceptive effects in pathological pain and evaluate future therapeutic opportunities clinically. Moreover, some structure-activity relationships would greatly enrich the opportunity of finding new and promising lead compounds and promote the reasonable development of curcumin. METHODS PubMed were searched and the literature from the year 1976 to January 2018 was retrieved using keywords pain and curcumin. RESULTS This review systematically summarized updated information on the traditional uses, chemical constituents and bioactivities of curcumin, and highlights the recent development of the mechanisms of curcumin in the pathological pain by sciatic nerve injury, spinal cord injury, diabetic neuropathy, alcoholic neuropathy, chemotherapy induced peripheral neuroinflammtion, complete Freund's adjuvant (CFA) injection or carrageenan injection. Importantly, the clinical studies provide a compelling justification for its use as a dietary adjunct for pain relief. And we also present multiple approaches to improve bioavailability of curcumin for the treatment of pathological pain. CONCLUSION This review focuses on pre-clinical and clinical studies in the treatment of pathological pain. Although the mechanisms of pain mitigating effects are not very clear, there is compelling evidence proved that curcumin plays an essential role. However, further high-quality clinical studies should be undertaken to establish the clinical effectiveness of curcumin in patients suffering from pathological pain. Potential methods of increase the water solubility and bioavailability of curcumin still need to be studied. These approaches will help in establishing it as remedy for pathological pain.
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Affiliation(s)
- Jia Sun
- Anesthesiology Institute, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fei Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Cancer Center, Sun Yat-Sen University, Guangzhou, China; Department of Oncology, Xiaogan Hospital Affiliated to Wuhan University of Science and Technology, Xiaogan, China
| | - Cody Braun
- UMKC School of Medicine, Kansas City, United States
| | - Ya-Qun Zhou
- Anesthesiology Institute, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Heike Rittner
- Department of Anesthesiology, University Hospital of Würzburg, Würzburg, Germany
| | - Yu-Ke Tian
- Anesthesiology Institute, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiu-Yu Cai
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Cancer Center, Sun Yat-Sen University, Guangzhou, China.
| | - Da-Wei Ye
- Cancer Center, Tongji Hospital, Tongji Medical college, Huazhong University of Science and Technology, Wuhan, China.
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Sargsyan E, Cen J, Roomp K, Schneider R, Bergsten P. Identification of early biological changes in palmitate-treated isolated human islets. BMC Genomics 2018; 19:629. [PMID: 30134843 PMCID: PMC6106933 DOI: 10.1186/s12864-018-5008-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Accepted: 08/14/2018] [Indexed: 12/13/2022] Open
Abstract
Background Long-term exposure to elevated levels of free fatty acids (FFAs) is deleterious for beta-cell function and may contribute to development of type 2 diabetes mellitus (T2DM). Whereas mechanisms of impaired glucose-stimulated insulin secretion (GSIS) in FFA-treated beta-cells have been intensively studied, biological events preceding the secretory failure, when GSIS is accentuated, are poorly investigated. To identify these early events, we performed genome-wide analysis of gene expression in isolated human islets exposed to fatty acid palmitate for different time periods. Results Palmitate-treated human islets showed decline in beta-cell function starting from day two. Affymetrix Human Transcriptome Array 2.0 identified 903 differentially expressed genes (DEGs). Mapping of the genes onto pathways using KEGG pathway enrichment analysis predicted four islet biology-related pathways enriched prior but not after the decline of islet function and three pathways enriched both prior and after the decline of islet function. DEGs from these pathways were analyzed at the transcript level. The results propose that in palmitate-treated human islets, at early time points, protective events, including up-regulation of metallothioneins, tRNA synthetases and fatty acid-metabolising proteins, dominate over deleterious events, including inhibition of fatty acid detoxification enzymes, which contributes to the enhanced GSIS. After prolonged exposure of islets to palmitate, the protective events are outweighed by the deleterious events, which leads to impaired GSIS. Conclusions The study identifies temporal order between different cellular events, which either promote or protect from beta-cell failure. The sequence of these events should be considered when developing strategies for prevention and treatment of the disease. Electronic supplementary material The online version of this article (10.1186/s12864-018-5008-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ernest Sargsyan
- Department of Medical Cell Biology, Uppsala University, Box 571, 75123, Uppsala, Sweden. .,Molecular Neuroscience Group, Institute of Molecular Biology, National Academy of Sciences, 0014, Yerevan, Armenia.
| | - Jing Cen
- Department of Medical Cell Biology, Uppsala University, Box 571, 75123, Uppsala, Sweden
| | - Kirsten Roomp
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Campus Belval, 7 avenue des Hauts fourneaux, 4362 Esch-Belval, Luxembourg City, Luxembourg
| | - Reinhard Schneider
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Campus Belval, 7 avenue des Hauts fourneaux, 4362 Esch-Belval, Luxembourg City, Luxembourg
| | - Peter Bergsten
- Department of Medical Cell Biology, Uppsala University, Box 571, 75123, Uppsala, Sweden
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Zheng S, Deng S, Huang Y, Huang M, Zhao P, Ma X, Wen Y, Wang Q, Yang X. Anti-diabetic activity of a polyphenol-rich extract from Phellinus igniarius in KK-Ay mice with spontaneous type 2 diabetes mellitus. Food Funct 2018; 9:614-623. [PMID: 29271444 DOI: 10.1039/c7fo01460k] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The present study investigated the anti-diabetic activity and potential mechanisms of the polyphenol rich extract from Phellinus igniarius (PI-PRE) in vitro and in vivo. Four main phenolic compounds of PI-PRE were purified and identified as 7,8-dihydroxycoumarin, 3,4-dihydroxybenzalacetone, 7,3'-dihydroxy-5'-methoxyisoflavone and inoscavin C by the off-line semipreparative liquid chromatography-nuclear magnetic resonance protocol. In vitro, PI-PRE stimulated GLUT4 translocation by 2.34-fold and increased glucose uptake by 1.73-fold in L6 cells. However, the selective AMP-activated protein kinase (AMPK) inhibitor, compound C, completely reversed the PI-PRE-induced GLUT4 translocation. In vivo, KK-Ay mice treated with PI-PRE for four weeks had lower fasting blood glucose levels, as well as other blood-lipid indexes, compared with the vehicle control group. Mechanistic studies showed that the expressions of p-AMPKα and GLUT4 were significantly increased by treatment with PI-PRE in L6 cells. In KK-Ay mice, the expression of p-AMPKα was enhanced in the liver and skeletal muscle, and the expression of GLUT4 was increased in skeletal muscle. These findings suggest that PI-PRE possesses potential anti-diabetic effects including improving glucose tolerance, reducing hyperglycemia, and normalizing insulin levels. These effects are partly due to the activation of GLUT4 translocation via the modulation of the AMPK pathway.
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Affiliation(s)
- Sijian Zheng
- School of Pharmaceutical Sciences, South-Central University for Nationalities, 182 Min-Zu Road, Wuhan 430074, China.
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Ocal I, Yilmaz MB, Kocaturk-Sel S, Tufan T, Erkoc MA, Comertpay G, Oksuz H, Barc ED. ATP sensitive K + channel subunits (Kir6.1, Kir6.2) are the candidate mediators regulating ameliorating effects of pulsed magnetic field on aortic contractility in diabetic rats. Bioelectromagnetics 2018; 39:299-311. [PMID: 29446477 DOI: 10.1002/bem.22111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 12/13/2017] [Indexed: 11/11/2022]
Abstract
Diabetes mellitus is a metabolic disease that causes increased morbidity and mortality in developed and developing countries. With recent advancements in technology, alternative treatment methods have begun to be investigated in the world. This study aims to evaluate the effect of pulsed magnetic field (PMF) on vascular complications and contractile activities of aortic rings along with Kir6.1 and Kir6.2 subunit expressions of ATP-sensitive potassium channels (KATP ) in aortas of controlled-diabetic and non-controlled diabetic rats. Controlled-diabetic and non-controlled diabetic adult male Wistar rats were exposed to PMF for a period of 6 weeks according to the PMF application protocol (1 h/day; intensity: 1.5 mT; consecutive frequency: 1, 10, 20, and 40 Hz). After PMF exposure, body weight and blood glucose levels were measured. Then, thoracic aorta tissue was extracted for relaxation-contraction and Kir6.1 and Kir6.2 expression experiments. Blood plasma glucose levels, body weight, and aortic ring contraction percentage decreased in controlled-diabetic rats but increased in non-controlled diabetic rats. PMF therapy repressed Kir6.1 mRNA expression in non-controlled diabetic rats but not in controlled diabetic rats. Conversely, Kir6.2 mRNA expressions were repressed both in controlled diabetic and non-controlled diabetic rats by PMF. Our findings suggest that the positive therapeutic effects of PMF may act through (KATP ) subunits and may frequently occur in insulin-free conditions. Bioelectromagnetics. 39:299-311, 2018. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
- Isil Ocal
- Faculty of Medicine, Department of Biophysics, Cukurova University, Adana, Turkey
| | - Mehmet B Yilmaz
- Faculty of Medicine, Department of Medical Biology, Cukurova University, Adana, Turkey
| | - Sabriye Kocaturk-Sel
- Faculty of Medicine, Department of Medical Biology, Cukurova University, Adana, Turkey
| | - Turan Tufan
- Faculty of Medicine, Department of Medical Biology, Cukurova University, Adana, Turkey
| | - Mehmet A Erkoc
- Faculty of Medicine, Department of Medical Biology, Cukurova University, Adana, Turkey
| | - Gamze Comertpay
- Faculty of Medicine, Department of Medical Biology, Cukurova University, Adana, Turkey
| | - Hale Oksuz
- Faculty of Medicine, Department of Medical Biology, Cukurova University, Adana, Turkey
| | - Esma D Barc
- Faculty of Medicine, Department of Medical Biology, Cukurova University, Adana, Turkey
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Comparison of Hand Function Between Children With Type 1 Diabetes Mellitus and Children Without Type 1 Diabetes Mellitus. Pediatr Phys Ther 2018; 30:58-65. [PMID: 29252840 DOI: 10.1097/pep.0000000000000465] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE This study compared the hand function of children between the ages of 8 and 12 years with type 1 diabetes mellitus (T1DM) with that of children without diabetes. METHODS The Modified Jebsen-Taylor Hand Function Test and the Purdue Pegboard Test were used to assess hand function. The Pediatric Quality of Life Inventory 4.0 was used for evaluating health-related quality of life. RESULTS Duration of writing was found to be significantly longer on the dominant side of the T1DM group compared with the children without T1DM. The durations of card turning, moving large, light objects, and large, heavy objects on the nondominant side of the T1DM group were also found to be significantly longer than those in the children without T1DM. The total scale score of health-related quality of life was significantly lower in the T1DM group compared with the children without T1DM. CONCLUSIONS T1DM affects hand function, particularly the dominant side for writing and nondominant side for card turning and moving large objects.
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Chen M, Lv H, Gan J, Ren J, Liu J. Tang Wang Ming Mu Granule Attenuates Diabetic Retinopathy in Type 2 Diabetes Rats. Front Physiol 2017; 8:1065. [PMID: 29311988 PMCID: PMC5742249 DOI: 10.3389/fphys.2017.01065] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Accepted: 12/04/2017] [Indexed: 12/15/2022] Open
Abstract
Aims: This study aimed to determine the influence of Tang Wang Ming Mu granule (TWMM) on the diabetic retinopathy of diabetic rats. Methods: Male Wistar rats were divided into seven groups: normal control, diabetes model(DM), diabetes with TWMM (3.6, 7.2, and 14.4 g/kg) treatment, the positive control treatment groups of Qi Ming granules and Calcium dobesilate capsules. All rats were treated for 8 weeks. The levels of body weight, fasting blood glucose (FBG) and glycosylated hemoglobin (HbA1c) in blood were measured to evaluate the antihyperglycemic activity of TWMM. Furthermore, malondialdehyde (MDA), intracellular adhesion molecule-1 (ICAM-1) and vascular endothelial growth factor (VEGF) in serum were measured to study effects of TWMM on oxidative stress and inflammatory in DM2 rats. VEGF, JAK/STAT signaling pathway and SOCS3 in retina was detected by immunohistochemistry. Results: TWMM and the positive control drugs Qi Ming and Calcium dobesilate showed a remarkable suppression of retinal neovascularization and amelioration of retinal internal limiting membrane morphology. Moreover, TWMM significantly decreased HbA1c, MDA, ICAM-1, and VEGF levels in serum of diabetic rats. However, Qi Ming granules showed significantly reduced MDA and VEGF levels (P < 0.01, and P < 0.05, respectively), Calcium dobesilate showed significantly reduced MDA and ICAM-1levels (P < 0.01 and P < 0.05, respectively) in serum. All drug- treated DM2 rats showed significantly lower levels of VEGF, JAK2, P-JAK2, STAT3, and P-STAT3 in retina than DM group, while TWMM and Calcium dobesilate significantly increased SOCS3 in retina. Conclusion: Our data suggest that the diabetic retina protective effect of TWMM might be related to antiinflammatory, antioxidative, upregulation of SOCS3 expression, inhibition of the JAK/STAT/VEGF signaling pathway.
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Affiliation(s)
- Mingxia Chen
- Graduate School, Beijing University of Chinese Medicine, Beijing, China.,Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China.,Beijing Handian Pharmaceutical Co. Ltd, Beijing, China
| | - Haibo Lv
- Beijing Handian Pharmaceutical Co. Ltd, Beijing, China
| | - Jiakuan Gan
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Junguo Ren
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jianxun Liu
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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Garst J, L'Heveder R, Siminerio LM, Motala AA, Gabbay RA, Chaney D, Cavan D. Sustaining diabetes prevention and care interventions: A multiple case study of translational research projects. Diabetes Res Clin Pract 2017; 130:67-76. [PMID: 28575728 DOI: 10.1016/j.diabres.2017.04.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 02/13/2017] [Accepted: 04/03/2017] [Indexed: 11/21/2022]
Abstract
BACKGROUND This study identifies the barriers and enablers for sustainability of interventions in primary and secondary prevention of diabetes. In the context of translational research, sustainability is defined as the continued use of program components and activities for the continued achievement of desirable program and population outcomes. METHODS In this study, eleven translational research projects, supported by the BRIDGES program of the International Diabetes Federation, were investigated. By theoretically-informed semi-structured interviews and analyses of project reports, qualitative data was collected on the sustainability outcomes and the barriers and enablers. RESULTS The sustainability outcomes can be grouped in three main areas: (1) sustainability at the intervention site(s); (2) diffusion to the wider community; and (3) replication of the intervention at other site(s). Each of the outcomes has their own set of enablers and barriers, and thus requires consideration for a different sustainability strategy. CONCLUSIONS This study is the first international study that relates the sustainability outcomes of translational research project to specific barriers and enablers, and develops an evidence-based framework which provides practical advice on how to ensure the sustainability of health interventions.
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Affiliation(s)
- J Garst
- Programs & Policies Department, International Diabetes Federation, 166 Chaussee de La Hulpe, B-1170 Brussels, Belgium.
| | - R L'Heveder
- Programs & Policies Department, International Diabetes Federation, 166 Chaussee de La Hulpe, B-1170 Brussels, Belgium. http://
| | - L M Siminerio
- University of Pittsburgh, Pittsburgh, United States.
| | - A A Motala
- Department of Diabetes and Endocrinology, University of KwaZulu-Natal, Durban, South Africa.
| | - R A Gabbay
- Joslin Diabetes Centre, Harvard Medical School, Boston, United States.
| | - D Chaney
- Programs & Policies Department, International Diabetes Federation, 166 Chaussee de La Hulpe, B-1170 Brussels, Belgium. http://
| | - D Cavan
- Programs & Policies Department, International Diabetes Federation, 166 Chaussee de La Hulpe, B-1170 Brussels, Belgium. http://
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Atif F, Prunty MC, Turan N, Stein DG, Yousuf S. Progesterone modulates diabetes/hyperglycemia-induced changes in the central nervous system and sciatic nerve. Neuroscience 2017; 350:1-12. [DOI: 10.1016/j.neuroscience.2017.03.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 03/01/2017] [Accepted: 03/03/2017] [Indexed: 12/21/2022]
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Marsh JE, Andrews PA. Management of the diabetic patient approaching end-stage renal failure. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/14746514020020021001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
| | - Peter A Andrews
- SW Thames Renal & Transplantation Unit, St Helier Hospital, Carshalton, Surrey, SM5 1AA, UK,
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Goswami SK, Gangadarappa SK, Vishwanath M, Razdan R, Jamwal R, Bhadri N, Inamdar MN. Antioxidant Potential and Ability of Phloroglucinol to Decrease Formation of Advanced Glycation End Products Increase Efficacy of Sildenafil in Diabetes-Induced Sexual Dysfunction of Rats. Sex Med 2016; 4:e104-12. [PMID: 26831914 PMCID: PMC5005294 DOI: 10.1016/j.esxm.2015.12.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 09/15/2015] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION Diabetes-induced sexual dysfunction is associated with an increase in oxidative stress. Scavengers of reactive oxygen species (ROS) have been shown to reduce oxidative stress and aid in the management of sexual dysfunction in diabetes. AIM The aim of the study was to test the hypothesis that antioxidant, which scavenge ROS and reduce formation of advanced glycation end products (AGEs), can potentiate efficacy of phosphodiesterase type 5 inhibitors in diabetes-induced sexual dysfunction that is associated with oxidative stress. MATERIALS AND METHODS Effect of phloroglucinol and sildenafil on serum glucose level, sexual function, penile smooth muscle : collagen ratio, and phenylephrine precontracted corpus cavernosum smooth muscle (CCSM) was studied. The ability of phloroglucinol to reduce the formation of AGEs and its ability to scavenge 2,2-diphenyl-1-picrylhydrazyl (DPPH) and nitric oxide (NO) was also evaluated. MAIN OUTCOME MEASURES Antioxidant potential of phloroglucinol was studied in addition to its effect on diabetes-induced sexual dysfunction in presence and absence of sildenafil. RESULTS Phloroglucinol (50 mg/kg, p.o.) significantly decreased serum glucose level and increased sexual function in streptozotocin-induced diabetic rats when compared with diabetic control rats. Sildenafil (5 mg/kg, p.o.) had no effect on glycemia but significantly increased sexual function of diabetic rats. Coadministration of phloroglucinol increased the efficacy of sildenafil by improving sexual function. Treatment of diabetic rats with phloroglucinol + sildenafil maintained smooth muscle : collagen levels similar to that of normal rat penile tissue. Phloroglucinol decreased formation of AGEs and significantly scavenged DPPH radical activity in vitro. Sildenafil relaxed isolated CCSM of normal rat and diabetic rat significantly, but phloroglucinol did not show any significant effect. Phloroglucinol also inhibited human CYP3A4 enzyme activity in vitro. CONCLUSION Phloroglucinol coadministration increases efficacy of sildenafil in diabetes-induced sexual dysfunction. However, further studies are required to ascertain the benefits of phloroglucinol owing to its undesirable CYP3A4 inhibition activity.
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Affiliation(s)
- Sumanta Kumar Goswami
- Department of Pharmacology, Al-Ameen College of Pharmacy, Bangalore, India; Currently pursuing postdoctoral training at University of California, Davis, CA, USA.
| | | | | | - Rema Razdan
- Department of Pharmacology, Al-Ameen College of Pharmacy, Bangalore, India
| | - Rohitash Jamwal
- College of Pharmacy, University of Rhode Island, Kingston, RI, USA
| | - Naini Bhadri
- Department of Pharmacology, Al-Ameen College of Pharmacy, Bangalore, India
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Dixon BE, Whipple EC, Lajiness JM, Murray MD. Utilizing an integrated infrastructure for outcomes research: a systematic review. Health Info Libr J 2015; 33:7-32. [PMID: 26639793 DOI: 10.1111/hir.12127] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 10/16/2015] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To explore the ability of an integrated health information infrastructure to support outcomes research. METHODS A systematic review of articles published from 1983 to 2012 by Regenstrief Institute investigators using data from an integrated electronic health record infrastructure involving multiple provider organisations was performed. Articles were independently assessed and classified by study design, disease and other metadata including bibliometrics. RESULTS A total of 190 articles were identified. Diseases included cognitive, (16) cardiovascular, (16) infectious, (15) chronic illness (14) and cancer (12). Publications grew steadily (26 in the first decade vs. 100 in the last) as did the number of investigators (from 15 in 1983 to 62 in 2012). The proportion of articles involving non-Regenstrief authors also expanded from 54% in the first decade to 72% in the last decade. During this period, the infrastructure grew from a single health system into a health information exchange network covering more than 6 million patients. Analysis of journal and article metrics reveals high impact for clinical trials and comparative effectiveness research studies that utilised data available in the integrated infrastructure. DISCUSSION Integrated information infrastructures support growth in high quality observational studies and diverse collaboration consistent with the goals for the learning health system. More recent publications demonstrate growing external collaborations facilitated by greater access to the infrastructure and improved opportunities to study broader disease and health outcomes. CONCLUSIONS Integrated information infrastructures can stimulate learning from electronic data captured during routine clinical care but require time and collaboration to reach full potential.
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Affiliation(s)
- Brian E Dixon
- Richard M. Fairbanks School of Public Health at IUPUI, Indianapolis, IN, USA.,Regenstrief Institute, Inc., Indianapolis, IN, USA.,Center for Health Information and Communication, Department of Veterans Affairs, Veterans Health Administration, Health Services Research and Development Service CIN 13-416, Richard L. Roudebush VA Medical Center, Indianapolis, IN, USA
| | - Elizabeth C Whipple
- Ruth Lilly Medical Library, Indiana University School of Medicine, Indianapolis, IN, USA
| | | | - Michael D Murray
- Regenstrief Institute and Purdue University, Indianapolis, IN, USA
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The association between urodynamic findings and micro-vascular complications in type 2 diabetic patients with or without voiding symptoms. Int J Diabetes Dev Ctries 2015. [DOI: 10.1007/s13410-015-0446-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Nasrallah R, Hassouneh R, Hébert RL. PGE2, Kidney Disease, and Cardiovascular Risk: Beyond Hypertension and Diabetes. J Am Soc Nephrol 2015; 27:666-76. [PMID: 26319242 DOI: 10.1681/asn.2015050528] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
An important measure of cardiovascular health is obtained by evaluating the global cardiovascular risk, which comprises a number of factors, including hypertension and type 2 diabetes, the leading causes of illness and death in the world, as well as the metabolic syndrome. Altered immunity, inflammation, and oxidative stress underlie many of the changes associated with cardiovascular disease, diabetes, and the metabolic syndrome, and recent efforts have begun to elucidate the contribution of PGE2 in these events. This review summarizes the role of PGE2 in kidney disease outcomes that accelerate cardiovascular disease, highlights the role of cyclooxygenase-2/microsomal PGE synthase 1/PGE2 signaling in hypertension and diabetes, and outlines the contribution of PGE2 to other aspects of the metabolic syndrome, particularly abdominal adiposity, dyslipidemia, and atherogenesis. A clearer understanding of the role of PGE2 could lead to new avenues to improve therapeutic options and disease management strategies.
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Affiliation(s)
- Rania Nasrallah
- Department of Cellular and Molecular Medicine, Kidney Research Centre, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Ramzi Hassouneh
- Department of Cellular and Molecular Medicine, Kidney Research Centre, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Richard L Hébert
- Department of Cellular and Molecular Medicine, Kidney Research Centre, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
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Huang C, Liao R, Wang F, Tang S. Characteristics of Reconstituted Tight Junctions After Corneal Epithelial Wounds and Ultrastructure Alterations of Corneas in Type 2 Diabetic Rats. Curr Eye Res 2015; 41:783-90. [DOI: 10.3109/02713683.2015.1039653] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
| | | | | | - Songtao Tang
- Department of Endocrinology, The First Hospital Affiliated of Anhui Medical University, Hefei, Anhui, China
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Yu FS, Yin J, Lee P, Hwang FS, McDermott M. Sensory nerve regeneration after epithelium wounding in normal and diabetic cornea. EXPERT REVIEW OF OPHTHALMOLOGY 2015; 10:383-392. [PMID: 28446923 DOI: 10.1586/17469899.2015.1049157] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The cornea is the most densely innervated mammalian tissue. The sensory nerves are responsible for sensations of dryness, temperature, touch, and pain, and play important roles in the blink reflex, wound healing, and tear production. Many ocular and systemic diseases can adversely affect corneal sensory nerve and consequently impair their function. One of such systemic diseases is diabetes mellitus (DM) which causes sensory degeneration, neurotrophic keratopathy (DNK), and delayed wound healing. In this review, we summarize recent discoveries revealing mechanisms underlying the pathogenesis of DNK and the impairment of sensory nerve regeneration in post wound diabetic corneas in using animal model of human diabetes. Because it is generally believed that common mechanisms are operative in the pathogenesis of diabetic peripheral neuropathy in different tissues, the findings in the corneas have implications in in other tissues such as the skin, which often leads to foot ulceration and amputation in diabetic patients.
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Affiliation(s)
- Fu-Shin Yu
- Department of Ophthalmology/Kresge Eye Institute, Wayne State University School of Medicine, Detroit, Michigan 48201, USA
| | - Jia Yin
- Department of Ophthalmology/Kresge Eye Institute, Wayne State University School of Medicine, Detroit, Michigan 48201, USA
| | - Patrick Lee
- Department of Ophthalmology/Kresge Eye Institute, Wayne State University School of Medicine, Detroit, Michigan 48201, USA
| | - Frank S Hwang
- Department of Ophthalmology/Kresge Eye Institute, Wayne State University School of Medicine, Detroit, Michigan 48201, USA
| | - Mark McDermott
- Department of Ophthalmology/Kresge Eye Institute, Wayne State University School of Medicine, Detroit, Michigan 48201, USA
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Memon AA, Bennet L, Zöller B, Wang X, Palmer K, Sundquist K, Sundquist J. Circulating human epidermal growth factor receptor 2 (HER2) is associated with hyperglycaemia and insulin resistance. J Diabetes 2015; 7:369-77. [PMID: 24981162 DOI: 10.1111/1753-0407.12184] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Revised: 05/16/2014] [Accepted: 06/03/2014] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Type 2 diabetes mellitus (T2DM) and human epidermal growth factor receptor 2 (HER2) are associated with cancer, although the role of HER2 in T2DM is not well defined. The aim of this study was to investigate the association between HER2 levels and T2DM and whether that association differed in Swedish people born in Iraq or Sweden. METHODS Circulating HER2 levels were analyzed by the Luminex assay in 95 Iraqi-born and 75 Swedish-born Swedes. RESULTS There were significant differences in HER2 among those with normal glucose tolerance (NGT), impaired fasting glucose (IFG) and/or impaired glucose tolerance (IGT), and T2DM in the entire population after adjusting for age, sex, and body mass index (BMI; P = 0.03). Stratification of data according to country of birth revealed significant differences in HER2 levels among NGT, IFG/IGT, and T2DM groups only in Swedes (P = 0.007). For the entire study population, there was a positive association between HER2 and hyperglycemia (IFG and/or IGT + T2DM; P = 0.011), BMI, waist circumference, serum insulin, homeostatic model assessment of β-cell function, HbA1c, triglycerides, and C-peptide (P < 0.05), and a negative association between HER2 and insulin sensitivity index (ISI; P < 0.0001). Bivariate and multivariate linear regression analyses on the whole study population revealed that the associations between hyperglycemia and HER2, as well as between ISI and HER2, were independent of factors known to be associated with T2DM and insulin resistance (e.g. demographics, obesity, lipids, sedentary lifestyle, a family history of T2DM, C-peptide, and C-reactive protein). CONCLUSIONS There is an independent association between HER2 levels and hyperglycemia and insulin resistance that is not modified by country of birth.
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Affiliation(s)
- Ashfaque A Memon
- Department of Clinical Sciences, Center for Primary Health Care Research, Lund University, Malmö, Sweden; Region Skåne, Malmö, Sweden
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Chen WF, Huang SY, Liao CY, Sung CS, Chen JY, Wen ZH. The use of the antimicrobial peptide piscidin (PCD)-1 as a novel anti-nociceptive agent. Biomaterials 2015; 53:1-11. [PMID: 25890701 DOI: 10.1016/j.biomaterials.2015.02.069] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 02/10/2015] [Accepted: 02/15/2015] [Indexed: 02/09/2023]
Abstract
The antimicrobial peptide piscidin (PCD)-1 has been reported to have antibacterial and immunomodulatory functions. Here, we investigated the anti-neuropathic properties of PCD-1, in order to determine its potential as a compound to alleviate pain. Treatment with PCD-1 suppressed the inflammatory proteins COX-2 and iNOS in murine macrophage (RAW264.7) and microglial (BV2) cell lines stimulated by lipopolysaccharide (LPS). For studies of the effect of PCD-1 in vivo, mononeuropathy in rats was induced by chronic constriction injury (CCI), and the resulting anti-nociceptive behaviors were compared between CCI controls and CCI rats given intrathecal injections of PCD-1. Much like gabapentin, PCD-1 exerts anti-nociceptive effects against thermal hyperalgesia, with a median effective dose (ED50) of 9.5 μg in CCI rats. In CCI rats, PCD-1 exerted effects against mechanical and cold allodynia, thermal hyperalgesia, and weight-bearing deficits. Furthermore, CCI-mediated activation of microglia and astrocytes in the dorsal horn of the lumbar spinal cord were decreased by PCD-1. In addition, PCD-1 suppressed up-regulation of interleukin-1β (IL-1β) and phosphorylated mammalian target of rapamycin (phospho-mTOR) in CCI rats. Finally, CCI-induced down-regulation of transforming growth factor-β1 (TGF-β1) in rats was attenuated by injection of PCD-1. Taken together, the present findings demonstrate that the marine antimicrobial peptide PCD-1 has anti-nociceptive effects, and thus may have potential for development as an alternative pain-alleviating agent.
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Affiliation(s)
- Wu-Fu Chen
- Department of Neurosurgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, 123 Ta Pei Rd, Kaohsiung 833, Taiwan; Center for Parkinson's Disease, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, 123 Ta Pei Rd, Kaohsiung 833, Taiwan
| | - Shi-Ying Huang
- Center for Neuroscience, National Sun Yat-Sen University, 70 Lien-Hai Rd, Kaohsiung 804, Taiwan
| | - Chang-Yi Liao
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, 70 Lien-Hai Rd, Kaohsiung 804, Taiwan
| | - Chun-Sung Sung
- Department of Anesthesiology, Taipei Veterans General Hospital, 201 Sec 2, Shih-Pai Rd, Taipei 112, Taiwan; School of Medicine, National Yang-Ming University, 155 Sec 2, Li-Nong St, Taipei 112, Taiwan
| | - Jyh-Yih Chen
- Marine Research Station, Institute of Cellular and Organismic Biology, Academia Sinica, 23-10 Dahuen Rd, Jiaushi, Ilan 262, Taiwan.
| | - Zhi-Hong Wen
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, 70 Lien-Hai Rd, Kaohsiung 804, Taiwan; Marine Biomedical Laboratory and Center for Translational Biopharmaceuticals, Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, 70 Lien-Hai Rd, Kaohsiung 804, Taiwan.
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Yang L, Di G, Qi X, Qu M, Wang Y, Duan H, Danielson P, Xie L, Zhou Q. Substance P promotes diabetic corneal epithelial wound healing through molecular mechanisms mediated via the neurokinin-1 receptor. Diabetes 2014; 63:4262-74. [PMID: 25008176 DOI: 10.2337/db14-0163] [Citation(s) in RCA: 127] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Substance P (SP) is a neuropeptide, predominantly released from sensory nerve fibers, with a potentially protective role in diabetic corneal epithelial wound healing. However, the molecular mechanism remains unclear. We investigated the protective mechanism of SP against hyperglycemia-induced corneal epithelial wound healing defects, using type 1 diabetic mice and high glucose-treated corneal epithelial cells. Hyperglycemia induced delayed corneal epithelial wound healing, accompanied by attenuated corneal sensation, mitochondrial dysfunction, and impairments of Akt, epidermal growth factor receptor (EGFR), and Sirt1 activation, as well as decreased reactive oxygen species (ROS) scavenging capacity. However, SP application promoted epithelial wound healing, recovery of corneal sensation, improvement of mitochondrial function, and reactivation of Akt, EGFR, and Sirt1, as well as increased ROS scavenging capacity, in both diabetic mouse corneal epithelium and high glucose-treated corneal epithelial cells. The promotion of SP on diabetic corneal epithelial healing was completely abolished by a neurokinin-1 (NK-1) receptor antagonist. Moreover, the subconjunctival injection of NK-1 receptor antagonist also caused diabetic corneal pathological changes in normal mice. In conclusion, the results suggest that SP-NK-1 receptor signaling plays a critical role in the maintenance of corneal epithelium homeostasis, and that SP signaling through the NK-1 receptor contributes to the promotion of diabetic corneal epithelial wound healing by rescued activation of Akt, EGFR, and Sirt1, improvement of mitochondrial function, and increased ROS scavenging capacity.
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Affiliation(s)
- Lingling Yang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
| | - Guohu Di
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
| | - Xia Qi
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
| | - Mingli Qu
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
| | - Yao Wang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
| | - Haoyun Duan
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
| | - Patrik Danielson
- Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
| | - Lixin Xie
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
| | - Qingjun Zhou
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong Academy of Medical Sciences, Qingdao, China
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Memon AA, Bennet L, Zöller B, Wang X, Palmér K, Dahlbäck B, Sundquist J, Sundquist K. The association between apolipoprotein M and insulin resistance varies with country of birth. Nutr Metab Cardiovasc Dis 2014; 24:1174-1180. [PMID: 24984825 DOI: 10.1016/j.numecd.2014.05.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 05/06/2014] [Accepted: 05/15/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND AIMS Risk of type 2 diabetes mellitus (T2DM) differs according to ethnicity. Levels of apolipoprotein M (ApoM) have been shown to be decreased in T2DM. However, its role in different ethnicities is not known. We examined the differences in plasma ApoM levels in Swedish residents born in Iraq (Iraqis) and Sweden (Swedes) in relation to T2DM and insulin resistance (IR). METHODS AND RESULTS Iraqis and Swedes, aged 45-65 years residing in Rosengård area of Malmö were randomly selected from census records and underwent an oral glucose tolerance test. Plasma levels of ApoM were quantified in 162 participants (Iraqis, n = 91; Swedes, n = 71) by a sandwich ELISA method. Age-, sex-, and body mass index (BMI) adjusted plasma ApoM levels differed by country of birth, with Swedes having 18% higher levels compared to Iraqis (p = 0.001). ApoM levels (mean ± SD) were significantly decreased in Swedes with T2DM (0.73 ± 0.18) compared to those with normal glucose tolerance (NGT) (0.89 ± 0.24; p = 0.03). By contrast, no significant difference in ApoM levels was found between Iraqis with T2DM (0.70 ± 0.17) and those with NGT (0.73 ± 0.13; p = 0.41). In multivariate linear regression analysis with an interaction term between IR and country of birth, low ApoM levels remained significantly associated with IR in Swedes (p = 0.008), independently of age, sex, BMI, family history of diabetes, HDL, LDL, and triglycerides, but not in Iraqis (p = 0.35). CONCLUSION Our results show that ApoM levels differ according to country of birth and are associated with IR and T2DM only in Swedes.
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Affiliation(s)
- A A Memon
- Center for Primary Health Care Research, Wallenberg Laboratory, 6th floor, Inga Marie Nilssons gata 53, Skåne University Hospital, Lund University/Region Skåne, S-205 02 Malmö, Sweden.
| | - L Bennet
- Genetic and Molecular Epidemiology, Lund University, Malmö, Sweden
| | - B Zöller
- Center for Primary Health Care Research, Wallenberg Laboratory, 6th floor, Inga Marie Nilssons gata 53, Skåne University Hospital, Lund University/Region Skåne, S-205 02 Malmö, Sweden
| | - X Wang
- Center for Primary Health Care Research, Wallenberg Laboratory, 6th floor, Inga Marie Nilssons gata 53, Skåne University Hospital, Lund University/Region Skåne, S-205 02 Malmö, Sweden
| | - K Palmér
- Center for Primary Health Care Research, Wallenberg Laboratory, 6th floor, Inga Marie Nilssons gata 53, Skåne University Hospital, Lund University/Region Skåne, S-205 02 Malmö, Sweden
| | - B Dahlbäck
- Department of Laboratory Medicine, Skåne University Hospital, Lund University, Sweden
| | - J Sundquist
- Center for Primary Health Care Research, Wallenberg Laboratory, 6th floor, Inga Marie Nilssons gata 53, Skåne University Hospital, Lund University/Region Skåne, S-205 02 Malmö, Sweden; Stanford Prevention Research Centre, Stanford University School of Medicine, Stanford, CA, USA
| | - K Sundquist
- Center for Primary Health Care Research, Wallenberg Laboratory, 6th floor, Inga Marie Nilssons gata 53, Skåne University Hospital, Lund University/Region Skåne, S-205 02 Malmö, Sweden; Stanford Prevention Research Centre, Stanford University School of Medicine, Stanford, CA, USA
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Poliothrysoside and its derivatives as novel insulin sensitizers potentially driving AMPK activation and inhibiting adipogenesis. Eur J Med Chem 2014; 86:570-7. [DOI: 10.1016/j.ejmech.2014.09.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 08/19/2014] [Accepted: 09/04/2014] [Indexed: 12/27/2022]
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Liu P, Guo WY, Zhao XN, Bai HP, Wang Q, Wang XL, Zhang YZ. Intrathecal baclofen, a GABAB receptor agonist, inhibits the expression of p-CREB and NR2B in the spinal dorsal horn in rats with diabetic neuropathic pain. Can J Physiol Pharmacol 2014; 92:655-60. [PMID: 24988216 DOI: 10.1139/cjpp-2013-0463] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study aimed to investigate the effect of baclofen, a γ-aminobutyric acid B (GABAB) receptor agonist, on the expression of p-CREB and NR2B in the spinal dorsal horn of rats with diabetic neuropathic pain (DNP). The DNP rats, which were successfully induced with streptozocin, were distributed among 3 groups that were treated with saline (D1 group), baclofen (D2 group), or CGP55845 + baclofen (D3 group) continuously for 4 days. The rats induced with saline and subsequently treated with saline were used as controls (C group). The times for the paw withdrawal threshold and thermal withdrawal latency of the D1 group were lower than those for the C group, and were significantly increased after baclofen treatment, but not when GABA receptor was pre-blocked with CGP55845 (D3 group). Increased protein expression levels of NR2B and p-CREB and mRNA levels of NR2B were found in the D1 group when compared with the controls. Baclofen treatment significantly suppressed their expression, bringing it close to the levels of controls. However, in the D3 group, the expression of p-CREB and NR2B were still significantly higher than that of the controls. Activation of GABAB receptor by baclofen attenuates diabetic neuropathic pain, which may partly be accomplished via down-regulating the expression of p-CREB and NR2B.
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Affiliation(s)
- Peng Liu
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang 050051, Hebei Province, China
| | - Wen-Ya Guo
- Hebei Medical University, Shijiazhuang 050051, China
| | - Xiao-Nan Zhao
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang 050051, Hebei Province, China
| | - Hui-Ping Bai
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang 050051, Hebei Province, China
| | - Qian Wang
- Department of Library, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
| | - Xiu-Li Wang
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang 050051, Hebei Province, China
| | - Ying-Ze Zhang
- Department of Orthopaedics, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
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Singhal P, Kaushik G, Mathur P. Antidiabetic potential of commonly consumed legumes: a review. Crit Rev Food Sci Nutr 2014; 54:655-72. [PMID: 24261538 DOI: 10.1080/10408398.2011.604141] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Over the last few decades, lifestyle changes have resulted in a drastic increase in the incidence of diabetes all over the world, especially in the developing countries. Oral hypoglycemic agents and insulin form the mainstay in controlling diabetes, but they have prominent side effects and fail to significantly alter the course of diabetic complications. Appropriate diet and exercise programs that form a part of lifestyle modifications have proven to be greatly effective in the management of this disease. Dietary therapy is showing a bright future in the prevention and treatment of diabetes. Legumes, owing to their high nutritive value, are increasingly being used in dietetic formulations in the treatment and prevention of diabetes on account of their antidiabetic potential. Given this background, this paper reviews the glucose- and lipid-lowering action possessed by various commonly consumed legumes through several animal and human studies. It is concluded that the various legumes not only have varying degrees of antidiabetic potential but are also beneficial in decreasing the risk factors for cardiovascular and renal disease.
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Affiliation(s)
- Poonam Singhal
- a Centre for Rural Development and Technology, Indian Institute of Technology-Delhi , New Delhi , 110016 , India
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The effect of lithospermic acid, an antioxidant, on development of diabetic retinopathy in spontaneously obese diabetic rats. PLoS One 2014; 9:e98232. [PMID: 24905410 PMCID: PMC4048190 DOI: 10.1371/journal.pone.0098232] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 04/30/2014] [Indexed: 01/22/2023] Open
Abstract
Background Lithospermic acid B (LAB), an active component isolated from Salvia miltiorrhiza radix, has been reported to have antioxidant effects. We examined the effects of LAB on the prevention of diabetic retinopathy in Otsuka Long-Evans Tokushima Fatty (OLETF) rats, an animal model of type 2 diabetes. Methods and Findings LAB (10 or 20 mg/kg) or normal saline were given orally once daily to 24-week-old male OLETF rats for 52 weeks. At the end of treatment, fundoscopic findings, vascular endothelial growth factor (VEGF) expression in the eyeball, VEGF levels in the ocular fluid, and any structural abnormalities in the retina were assessed. Glucose metabolism, serum levels of high-sensitivity C-reactive protein (hsCRP), monocyte chemotactic protein-1 (MCP1), and tumor necrosis factor-alpha (TNFα) and urinary 8-hydroxy-2′-deoxyguanosine (8-OHdG) levels were also measured. Treatment with LAB prevented vascular leakage and basement membrane thickening in retinal capillaries in a dose-dependent manner. Insulin resistance and glucose intolerance were significantly improved by LAB treatment. The levels of serum hsCRP, MCP1, TNFα, and urinary 8-OHdG were lower in the LAB-treated OLETF rats than in the controls. Conclusions Treatment with LAB had a preventive effect on the development of diabetic retinopathy in this animal model, probably because of its antioxidative effects and anti-inflammatory effects.
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Bhardwaj A, Kaur J, Wuest F, Knaus EE. Do nitric oxide-releasing drugs offer a potentially new paradigm for the management of cardiovascular risks in diabetes? Expert Rev Cardiovasc Ther 2014; 12:533-6. [PMID: 24725228 DOI: 10.1586/14779072.2014.897227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Cardiovascular complications are frequently observed in diabetic patients and are mostly caused by endothelial dysfunction associated with a decline in biosynthesis of nitric oxide (NO). In response to this concern, a remarkable increase in the interest for development of NO-releasing hybrid drugs has been observed. The NO-donating entity was linked to known drugs with the belief that NO is a vasorelaxant and an inhibitor of platelet aggregation or reduces thrombotic events. Many of these NO-releasing hybrid drugs have shown significant improvement in cardiovascular safety. In this editorial the potential roles of NO-releasing drugs for the treatment of cardiovascular complications in diabetes will be discussed.
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Affiliation(s)
- Atul Bhardwaj
- Department of Oncology, University of Alberta, Edmonton, AB, T6G 1Z2, Canada
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Abstract
Patients with diabetes and peripheral neuropathy are at risk for foot deformities and mechanical imbalance of the lower extremity. Peripheral neuropathy leads to an insensate foot that puts the patient at risk for injury. When combined with deformity due to neuropathic arthropathy, or Charcot foot, the risks of impending ulceration, infection, and amputation are significant to the diabetic patient. Education of proper foot care and shoe wear cannot be overemphasized. For those with significant malalignment or deformity of the foot and ankle, referral should be made immediately to an orthopedic foot and ankle specialist.
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Affiliation(s)
- John A DiPreta
- Division of Orthopaedic Surgery, Albany Medical Center, Albany Medical College, Capital Region Orthopaedics, 1367 Washington Avenue, Suite 200, Albany, NY 12206, USA.
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Yang F, Liu L, Xu W, Liu H, Yin Q, Li H, Guo R, Zhang R, Liu X. Comparison of carotid and cerebrovascular stenosis between diabetic and nondiabetic patients using digital subtraction angiography. J Stroke Cerebrovasc Dis 2014; 23:1327-31. [PMID: 24389378 DOI: 10.1016/j.jstrokecerebrovasdis.2013.11.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 11/05/2013] [Accepted: 11/07/2013] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The aim of our study was to evaluate the differences of prevalence and manifestation of extracranial and intracranial artery stenosis between patients with and without type 2 diabetes using digital subtraction angiography. METHODS A retrospective study was conducted by analyzing clinical and lifestyle data collected from 1137 patients enrolled in the Nanjing Stroke Registry Program between June 2004 and March 2011. Vascular risk factors were analyzed, and carotid and cerebrovascular artery stenoses were measured in 383 patients with type 2 diabetes mellitus and 754 nondiabetic patients by digital subtraction angiography. RESULTS In all, 1069 stenoses were found among 383 diabetic patients and 1990 among 754 nondiabetic patients. No statistical differences were observed for the distribution of stenosis in intracranial-extracranial vessels between diabetic and nondiabetic patients (P=.210). There was no difference in the distribution of stenosis in the anterior and posterior circulation vessels between these 2 groups (P=.628). Among diabetic patients with stenosis, a single stenosis was found in 116 (30.29%) and multiple stenoses were found in 267 (69.71%). In their nondiabetic counterparts, a single stenosis was found in 249 (33.02%) and multiple stenoses were found in 505 (66.98%). Compared with nondiabetic patients, the diabetic patients have a tendency of a higher incidence of multiple stenosis. Nonobstructive stenosis occurs more often in diabetic than in nondiabetic patients (P=.002). CONCLUSIONS This retrospective study suggests that diabetes be associated with higher incidence of nonobstructive stenosis and that there be no significant difference observed in the extent and distribution of the extra- and intracranial artery stenoses between diabetic and nondiabetic patients.
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Affiliation(s)
- Fang Yang
- Department of Neurology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu Province, PR China
| | - Ling Liu
- Department of Neurology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu Province, PR China
| | - Weijun Xu
- Department of Health Care, Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu Province, PR China
| | - Haibo Liu
- Department of Dermatology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu Province, PR China
| | - Qin Yin
- Department of Neurology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu Province, PR China
| | - Hua Li
- Department of Neurology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu Province, PR China
| | - Ruibing Guo
- Department of Neurology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu Province, PR China
| | - Renliang Zhang
- Department of Neurology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu Province, PR China
| | - Xinfeng Liu
- Department of Neurology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu Province, PR China.
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Brouwers O, Niessen PMG, Miyata T, Østergaard JA, Flyvbjerg A, Peutz-Kootstra CJ, Sieber J, Mundel PH, Brownlee M, Janssen BJA, De Mey JGR, Stehouwer CDA, Schalkwijk CG. Glyoxalase-1 overexpression reduces endothelial dysfunction and attenuates early renal impairment in a rat model of diabetes. Diabetologia 2014; 57:224-35. [PMID: 24162587 DOI: 10.1007/s00125-013-3088-5] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Accepted: 10/02/2013] [Indexed: 02/02/2023]
Abstract
AIMS/HYPOTHESIS In diabetes, advanced glycation end-products (AGEs) and the AGE precursor methylglyoxal (MGO) are associated with endothelial dysfunction and the development of microvascular complications. In this study we used a rat model of diabetes, in which rats transgenically overexpressed the MGO-detoxifying enzyme glyoxalase-I (GLO-I), to determine the impact of intracellular glycation on vascular function and the development of early renal changes in diabetes. METHODS Wild-type and Glo1-overexpressing rats were rendered diabetic for a period of 24 weeks by intravenous injection of streptozotocin. Mesenteric arteries were isolated to study ex vivo vascular reactivity with a wire myograph and kidneys were processed for histological examination. Glycation was determined by mass spectrometry and immunohistochemistry. Markers for inflammation, endothelium dysfunction and renal dysfunction were measured with ELISA-based techniques. RESULTS Diabetes-induced formation of AGEs in mesenteric arteries and endothelial dysfunction were reduced by Glo1 overexpression. Despite the absence of advanced nephrotic lesions, early markers of renal dysfunction (i.e. increased glomerular volume, decreased podocyte number and diabetes-induced elevation of urinary markers albumin, osteopontin, kidney-inflammation-molecule-1 and nephrin) were attenuated by Glo1 overexpression. In line with this, downregulation of Glo1 in cultured endothelial cells resulted in increased expression of inflammation and endothelium dysfunction markers. In fully differentiated cultured podocytes incubation with MGO resulted in apoptosis. CONCLUSIONS/INTERPRETATION This study shows that effective regulation of the GLO-I enzyme is important in the prevention of vascular intracellular glycation, endothelial dysfunction and early renal impairment in experimental diabetes. Modulating the GLO-I pathway therefore may provide a novel approach to prevent vascular complications in diabetes.
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Affiliation(s)
- Olaf Brouwers
- Laboratory for Metabolism and Vascular Medicine, Division of General Internal Medicine, Department of Internal Medicine, Maastricht University Medical Center, Universiteitssingel 50, P.O. Box 616 (box 14), 6200 MD, Maastricht, the Netherlands,
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Tripathi AC, Gupta SJ, Fatima GN, Sonar PK, Verma A, Saraf SK. 4-Thiazolidinones: The advances continue…. Eur J Med Chem 2014; 72:52-77. [DOI: 10.1016/j.ejmech.2013.11.017] [Citation(s) in RCA: 194] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 11/12/2013] [Accepted: 11/15/2013] [Indexed: 12/26/2022]
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Abdul-Hamid M, Moustafa N. Amelioration of alloxan-induced diabetic keratopathy by beta-carotene. ACTA ACUST UNITED AC 2013; 66:49-59. [PMID: 24129090 DOI: 10.1016/j.etp.2013.08.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2013] [Revised: 07/22/2013] [Accepted: 08/30/2013] [Indexed: 12/25/2022]
Abstract
This study was undertaken to assess the anti-keratopathy activity of β-carotene in experimentally-induced diabetic animal model. The rats were divided into four groups as following: G1, normal control group; G2, β-carotene control group (50 mg/kg b.wt.); G3, diabetic group which was injected intraperitoneally with a single dose (100 mg/kg b. wt) of alloxan (ALX) and G4, diabetic rats treated with β-carotene which was injected with ALX as G3, and then received a daily oral dose of β-carotene (50 mg/kg b.wt.) for 3 months. ALX injection caused elevated levels of serum glucose in diabetic group. Moreover, histopathology revealed relatively thick corneal epithelium, ill-defined Bowman's membrane, widely spaced stromal layers and relatively thick Descemet's membrane. Electron microscopic studies showed vacuolated cytoplasm, partial loss of hemi-desmosomes and disorganized collagen fibrils with focal lysis of stromal layer. Oral gavage of β-carotene to diabetic rats for 3 months significantly decreased serum glucose level and ameliorated histopathological, immunohistochemical and ultrastructural results. Consequently, β-carotene exerted anti-keratopathy effects and ameliorated the corneal changes in diabetic rats via its hypoglycemic and antioxidant mechanisms.
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Affiliation(s)
- Manal Abdul-Hamid
- Department of Zoology, Faculty of Science, Beni-Suef University, Egypt.
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Abstract
OBJECTIVE To review opportunities through which pharmacists can help the United States achieve its public health goals as expressed in Healthy People 2010, a document issued by the federal government that expresses the areas of focus for Americans in the first decade of the 21st century. SUMMARY Healthy People 2010 provides general goals for 10 leading health indicators (such as tobacco use, overweight and obesity, and immunizations), and these are then further subdivided into 28 focus areas, many of them with quantifiable goals (such as, "Reduce hospitalization rates for three ambulatory care-sensitive conditions-pediatric asthma, uncontrolled diabetes, and immunization-preventable pneumonia and influenza."). As health care professionals, pharmacists have the responsibility to help the country meet these goals. Ideas for increased pharmacist involvement are described in the article, including the conduct of screening programs and provision of specialized services that focus on such areas as hypertension, diabetes, asthma, patient education, smoking cessation, or general medication management. Pharmacists can build their efforts in these and similar areas by collaborating with physicians and other appropriate professionals, identifying target patients who have obtained services at the pharmacy, contacting patients in at-risk populations within the pharmacy's patient base and/or the community, choosing and monitoring an objective of interest, and maintaining efforts for sustained time periods. CONCLUSION The message of Healthy People 2010 is that the health of the individual is closely linked to the health of the community and hence the health of the nation. Pharmacists, uniquely positioned as the most accessible health care providers in the community, can dedicate their considerable strengths toward using Healthy People 2010 as a tool to organize their own efforts and motivate their patients.
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Eleazu CO, Iroaganachi M, Eleazu KC. Ameliorative potentials of cocoyam (Colocasia esculenta L.) and unripe plantain (Musa paradisiaca L.) on the relative tissue weights of streptozotocin-induced diabetic rats. J Diabetes Res 2013; 2013:160964. [PMID: 23971053 PMCID: PMC3736419 DOI: 10.1155/2013/160964] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Revised: 05/17/2013] [Accepted: 06/06/2013] [Indexed: 02/07/2023] Open
Abstract
AIM To investigate the ameliorating potentials of cocoyam (Colocasia esculenta L.) and unripe plantain (Musa paradisiaca L.) incorporated feeds on the renal and liver growths of diabetic rats, induced with 55 and 65 mg/kg body weight of Streptozotocin. METHOD The blood glucose level of the rats was measured with a glucometer, the protein and glucose and specific gravity (SPGR) in the urine samples of the rats were measured using urine assay strips and urinometer respectively. The chemical composition and antioxidant screening of the test feeds were carried out using standard techniques. RESULTS Administration of the test feeds for 21 days to the diabetic rats of groups 4 and 5, resulted in 58.75% and 38.13% decreases in hyperglycemia and amelioration of their elevated urinary protein, glucose, SPGR, and relative kidney weights. The diabetic rats administered cocoyam incorporated feeds, had 2.71% and 19.52% increases in weight and growth rates, the diabetic rats administered unripe plantain incorporated feeds had 5.12% and 29.52% decreases in weight and growth rates while the diabetic control rats had 28.69%, 29.46%, 248.9% and 250.14% decreases in weights and growth rates. The cocoyam incorporated feeds contained higher antioxidants, minerals and phytochemicals except alkaloids than unripe plantain feed. CONCLUSION Cocoyam and unripe plantain could be useful in the management of diabetic nephropathy.
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Affiliation(s)
- C O Eleazu
- Department of Biochemistry, National Root Crops Research Institute, P.O. Box 380, Umuahia, Abia State, Nigeria.
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