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Shahnaz S, Hassanuzzaman M, Mazumder S, Rashid F, Hira HM, Hussain R, Barua S. Association of Posterior Reversible Encephalopathy Syndrome (PRES) with Preeclampsia with Severe Symptoms and Eclampsia in South East Part of Bangladesh. Mymensingh Med J 2024; 33:267-278. [PMID: 38163803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Posterior reversible encephalopathy syndrome (PRES) is a pathology seen not only in precelampsia with severe symptoms and eclampsia but in a varicty of diseases/ conditions. With the availability of neuroimaging, it is possible to know the exact underlying Central nervous system (CNS) pathology in preeclampsia with severe symptoms and eclampsia and thus therapy can be targeted. Preeclampsia with severe symptoms and eclampsia remains to be an important cause of maternal morbidity and mortality in both the developing and developed world. The objective of this study was to evaluate the association of Posterior reversible encephalopathy syndrome (PRES) by MRI (Magnetic resonance imaging) with preeclampsia with severe symptoms and eclampsia in south east part of Bangladesh. This cross-sectional observational study was performed among women suffering from preeclampsia with severe symptoms and eclampsia who attended at Obstetrics & Gynaecology department of Chittagong Medical College Hospital (CMCH), Bangladesh from January 2021 to June 2021. According to inclusion/exclusion criteria 50 samples were taken by convenient sampling for this study. A detail history was taken and complete general physical and gynecological examination was performed. Required data was collected through preset questionnaire. Neuroimaging reports were reviewed by both neurologist and radiologist. Data was analyzed by using windows based computer software device, SPSS 25.0. Results obtained from this study will be used to make a statement regarding aggressive management for cerebral vasospasm in severe preeclampsia and eclamptia related PRES. PRES has been reported to be reversible but late recognition or incorrect treatment can cause irreversible brain damage. Institution of early treatment leads to resolution of symptoms without any neurologic deficit and thus reduces maternal morbidity and mortality. PRES is a cliniconeuroradiologic entity. This study can aware doctors regarding prompt diagnosis of PRES in peripartum period among patient suffering from preeclampsia with severe symptoms and eclampsia by imaging aside clinical findings. A conclusive decision can be made to improve the outcome in this potentially life threatening but reversible condition.
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Affiliation(s)
- S Shahnaz
- Dr Shoyela Shahnaz, Assistant Professor, Department of Obstetrics & Gynaecology, Chittagong Medical College (CMC), Chittagong, Bangladesh; E-mail:
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Kim J, Sim AY, Barua S, Kim JY, Lee JE. Agmatine-IRF2BP2 interaction induces M2 phenotype of microglia by increasing IRF2-KLF4 signaling. Inflamm Res 2023:10.1007/s00011-023-01741-z. [PMID: 37314519 DOI: 10.1007/s00011-023-01741-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/29/2023] [Accepted: 05/10/2023] [Indexed: 06/15/2023] Open
Abstract
BACKGROUND Following central nervous system (CNS) injury, the investigation for neuroinflammation is vital because of its pleiotropic role in both acute injury and long-term recovery. Agmatine (Agm) is well known for its neuroprotective effects and anti-neuroinflammatory properties. However, Agm's mechanism for neuroprotection is still unclear. We screened target proteins that bind to Agm using a protein microarray; the results showed that Agm strongly binds to interferon regulatory factor 2 binding protein (IRF2BP2), which partakes in the inflammatory response. Based on these prior data, we attempted to elucidate the mechanism by which the combination of Agm and IRF2BP2 induces a neuroprotective phenotype of microglia. METHODS To confirm the relationship between Agm and IRF2BP2 in neuroinflammation, we used microglia cell-line (BV2) and treated with lipopolysaccharide from Escherichia coli 0111:B4 (LPS; 20 ng/mL, 24 h) and interleukin (IL)-4 (20 ng/mL, 24 h). Although Agm bound to IRF2BP2, it failed to enhance IRF2BP2 expression in BV2. Therefore, we shifted our focus onto interferon regulatory factor 2 (IRF2), which is a transcription factor and interacts with IRF2BP2. RESULTS IRF2 was highly expressed in BV2 after LPS treatment but not after IL-4 treatment. When Agm bound to IRF2BP2 following Agm treatment, the free IRF2 translocated to the nucleus of BV2. The translocated IRF2 activated the transcription of Kruppel-like factor 4 (KLF4), causing KLF4 to be induced in BV2. The expression of KLF4 increased the CD206-positive cells in BV2. CONCLUSIONS Taken together, unbound IRF2, resulting from the competitive binding of Agm to IRF2BP2, may provide neuroprotection against neuroinflammation via an anti-inflammatory mechanism of microglia involving the expression of KLF4.
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Affiliation(s)
- Jiwon Kim
- Department of Anatomy, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - A Young Sim
- Department of Anatomy, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sumit Barua
- Department of Anatomy, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
| | - Jong Youl Kim
- Department of Anatomy, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea.
| | - Jong Eun Lee
- Department of Anatomy, Yonsei University College of Medicine, 50-1, Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea.
- Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, Republic of Korea.
- Brain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea.
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Barua S, Conte S, Cherrett C, Robson D, Bragg C, MacDonald P, Muthiah K, Hayward C. Major Adverse Kidney Events is a Predictor of Reduced Survival in Patients Supported with Ventricular Assist Devices. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Barua S, Lo P, Stephens M, Vazquez G, Diab S, James K, Heuring J, Muthiah K, Hayward C. A Mock Circulatory Loop Analysis of the Procyrion Aortix Pump. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Chavali S, Barua S, Adjii A, Robson D, Raven L, Greenfield J, Parvar S, MacDonald P, Hayward C, Muthiah K. Safety and Tolerability of Sodium-Glucose Cotransporter-2 Inhibitors (SGLT2i) in Patients Supported with Left Ventricular Assist Devices. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Jiang J, Jain P, Adji A, Barua S, Hayward C. Afterload and LV Function, but Not Circuit Flow, Determine LV Filling Pressure During VA-ECMO. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Jiang J, Jain P, Adji A, Barua S, Hayward C. Determinants of LV Filling Pressure During ECPR with VA-ECMO: A Mock Circulatory Loop Study. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Barua S, Yang T, Conte S, Bragg C, Macdonald P, Muthiah K, Hayward C. Value of Renal Histology for Predicting Cardiorenal Outcomes in Patients Listed for Cardiac Transplantation. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Krishnaswamy R, Robson D, Ramanayake A, Gunawan A, Barua S, Adji A, Hayward C, Muthiah K. Using Pulsatility Responses to Breath-Hold Maneuvers to Predict Readmission Rates in Left Ventricular Assist Device Patients. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Krishnaswamy R, Robson D, Ramanayake A, Gunawan A, Barua S, Jain P, Adji A, Macdonald P, Hayward C, Muthiah K. Using Pulsatility Responses to Breath-Hold Manoeuvres to Predict Readmission Rates in Continuous-Flow Left Ventricular Assist Device Patients. Heart Lung Circ 2022. [DOI: 10.1016/j.hlc.2022.06.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Barua S, Lo P, Stevens M, Vazquez G, Diab S, Heuring J, Krisher J, Muthiah K, Hayward C. A Mock Circulatory Loop Analysis of an Intra-Aortic Cardiorenal Pump. Heart Lung Circ 2022. [DOI: 10.1016/j.hlc.2022.06.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Sim AY, Barua S, Kim JY, Lee YH, Lee JE. Role of DPP-4 and SGLT2 Inhibitors Connected to Alzheimer Disease in Type 2 Diabetes Mellitus. Front Neurosci 2021; 15:708547. [PMID: 34489627 PMCID: PMC8417940 DOI: 10.3389/fnins.2021.708547] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 07/12/2021] [Indexed: 12/12/2022] Open
Abstract
Alzheimer's disease (AD) is characterized by memory loss and cognitive decline. Additionally, abnormal extracellular amyloid plaques accumulation and nerve damage caused by intracellular neurofibrillary tangles, and tau protein are characteristic of AD. Furthermore, AD is associated with oxidative stress, impaired mitochondrial structure and function, denormalization, and inflammatory responses. Recently, besides the amyloid β hypothesis, another hypothesis linking AD to systemic diseases has been put forth by multiple studies as a probable cause for AD. Particularly, type 2 diabetes mellitus (T2DM) and its features, including hyperinsulinemia, and chronic hyperglycemia with an inflammatory response, have been shown to be closely related to AD through insulin resistance. The brain cannot synthesize or store glucose, but it does require glucose, and the use of glucose in the brain is higher than that in any other organ in the mammalian body. One of the therapeutic drugs for T2DM, dipeptidyl peptidase-4 (DPP-4) inhibitor, suppresses the degradation of incretins, glucagon-like peptides and glucose-dependent insulinotropic peptide. Sodium-glucose cotransporter 2 (SGLT2) inhibitors, recently used in T2DM treatment, have a unique mechanism of action via inhibition of renal glucose reabsorption, and which is different from the mechanisms of previously used medications. This manuscript reviews the pathophysiological relationship between the two diseases, AD and T2DM, and the pharmacological effects of therapeutic T2DM drugs, especially DPP-4 inhibitors, and SGLT2 inhibitors.
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Affiliation(s)
- A Young Sim
- Department of Anatomy, Yonsei University College of Medicine, Seoul, South Korea.,Brain Korea 21 Plus Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Sumit Barua
- Department of Anatomy, Yonsei University College of Medicine, Seoul, South Korea
| | - Jong Youl Kim
- Department of Anatomy, Yonsei University College of Medicine, Seoul, South Korea
| | - Yong-Ho Lee
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Jong Eun Lee
- Department of Anatomy, Yonsei University College of Medicine, Seoul, South Korea.,Brain Korea 21 Plus Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea.,Brain Research Institute, Yonsei University College of Medicine, Seoul, South Korea
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Barua S, Sim AY, Kim JY, Shin I, Lee JE. Maintenance of the Neuroprotective Function of the Amino Group Blocked Fluorescence-Agmatine. Neurochem Res 2021; 46:1933-1940. [PMID: 33914233 PMCID: PMC8254702 DOI: 10.1007/s11064-021-03319-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 02/21/2021] [Accepted: 04/02/2021] [Indexed: 11/23/2022]
Abstract
Agmatine, an endogenous derivative of arginine, has been found to be effective in treating idiopathic pain, convulsion, stress-mediated behavior, and attenuate the withdrawal symptoms of drugs like morphine. In the early stages of ischemic brain injury in animals, exogenous agmatine treatment was found to be neuroprotective. Agmatine is also considered as a putative neurotransmitter and is still an experimental drug. Chemically, agmatine is called agmatine 1-(4-aminobutyl guanidine). Crystallographic study data show that positively-charged guanidine can bind to the protein containing Gly and Asp residues, and the amino group can interact with the complimentary sites of Glu and Ser. In this study, we blocked the amino end of the agmatine by conjugating it with FITC, but the guanidine end was unchanged. We compared the neuroprotective function of the agmatine and agmatine-FITC by treating them in neurons after excitotoxic stimulation. We found that even the amino end blocked neuronal viability in the excitotoxic condition, by NMDA treatment for 1 h, was increased by agmatine-FITC, which was similar to that of agmatine. We also found that the agmatine-FITC treatment reduced the expression of nitric oxide production in NMDA-treated cells. This study suggests that even if the amino end of agmatine is blocked, it can perform its neuroprotective function.
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Affiliation(s)
- Sumit Barua
- Department of Anatomy, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-gu, Seoul, 03722 Korea
| | - A Young Sim
- Department of Anatomy, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-gu, Seoul, 03722 Korea
- BK21 Plus Project for Medical Sciences, Yonsei University College of Medicine, Seoul, 03722 Korea
| | - Jong Youl Kim
- Department of Anatomy, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-gu, Seoul, 03722 Korea
| | - Injae Shin
- Department of Chemistry, Yonsei University, Seoul, 03722 Korea
| | - Jong Eun Lee
- Department of Anatomy, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-gu, Seoul, 03722 Korea
- BK21 Plus Project for Medical Sciences, Yonsei University College of Medicine, Seoul, 03722 Korea
- Brain Research Institute, Yonsei University College of Medicine, Seoul, 03722 Korea
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Kosonen R, Barua S, Kim JY, Lee JE. Role of agmatine in the application of neural progenitor cell in central nervous system diseases: therapeutic potentials and effects. Anat Cell Biol 2021; 54:143-151. [PMID: 34162764 PMCID: PMC8225474 DOI: 10.5115/acb.21.089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/28/2021] [Accepted: 05/31/2021] [Indexed: 12/01/2022] Open
Abstract
Agmatine, the primary decarboxylation product of L-arginine, generated from arginine decarboxylase. Since the discovery of agmatine in the mammalian brain in the 1990s, an increasing number of agmatine-mediated effects have been discovered, demonstrating the benefits of agmatine on ischemic strokes, traumatic brain injury and numerous psychological disorders such as depression, anxiety, and stress. Agmatine also has cellular protective effects and contributes to cell proliferation and differentiation in the central nervous system (CNS). Neural progenitor cells are an important component in the recovery and repair of many neurological disorders due to their ability to differentiate into functional adult neurons. Recent data has revealed that agmatine can regulate and increase proliferation and the fate of progenitor cells in the adult hippocampus. This review aims to summarise and discuss the role of agmatine in the CNS; specifically, the effects and relationship between agmatine and neural progenitor cells and how these ideas can be applied to potential therapeutic application.
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Affiliation(s)
- Renée Kosonen
- Department of Anatomy, Yonsei University College of Medicine, Seoul, Korea.,Brain Korea 21 Plus Project for Medical Science, Brain Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Sumit Barua
- Department of Anatomy, Yonsei University College of Medicine, Seoul, Korea
| | - Jong Youl Kim
- Department of Anatomy, Yonsei University College of Medicine, Seoul, Korea
| | - Jong Eun Lee
- Department of Anatomy, Yonsei University College of Medicine, Seoul, Korea.,Brain Korea 21 Plus Project for Medical Science, Brain Research Institute, Yonsei University College of Medicine, Seoul, Korea
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Conte S, Barua S, Cherrett C, Adji A, Engelman J, Robson D, Bragg C, Kearney K, Jain P, Macdonald P, Muthiah K, Hayward C. Flow Pulsatility and Outcomes in Continuous-Flow Ventricular Assist Devices. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Barua S, Conte S, Cherrett C, Adji A, Engelman J, Robson D, Kearney K, Bragg C, Jain P, Schnegg B, Macdonald P, Muthiah K, Hayward C. Predictors of Worsening Renal Function in Patients Supported with Ventricular Assist Devices. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Elhalawani H, Volpe S, Cardenas C, Stieb S, Rock C, Lin T, Yang P, Wu H, Barua S, Zaveri J, Elgohari B, Abdallah L, Jethanandani A, Mohamed A, Court L, Gunn G, Rosenthal D, Frank S, Garden A, Rao A, Hutcheson K, Fuller C. Investigation of Longitudinal Dose-weighted FDG-Positron Emission Tomography Metabolic Imaging Biomarkers (PET MIBs) of Radiation-associated Dysphagia in OPC Cohort. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kim JY, Barua S, Jeong YJ, Lee JE. Adiponectin: The Potential Regulator and Therapeutic Target of Obesity and Alzheimer's Disease. Int J Mol Sci 2020; 21:ijms21176419. [PMID: 32899357 PMCID: PMC7504582 DOI: 10.3390/ijms21176419] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/28/2020] [Accepted: 08/28/2020] [Indexed: 02/08/2023] Open
Abstract
Animal and human mechanistic studies have consistently shown an association between obesity and Alzheimer’s disease (AD). AD, a degenerative brain disease, is the most common cause of dementia and is characterized by the presence of extracellular amyloid beta (Aβ) plaques and intracellular neurofibrillary tangles disposition. Some studies have recently demonstrated that Aβ and tau cannot fully explain the pathophysiological development of AD and that metabolic disease factors, such as insulin, adiponectin, and antioxidants, are important for the sporadic onset of nongenetic AD. Obesity prevention and treatment can be an efficacious and safe approach to AD prevention. Adiponectin is a benign adipokine that sensitizes the insulin receptor signaling pathway and suppresses inflammation. It has been shown to be inversely correlated with adipose tissue dysfunction and may enhance the risk of AD because a range of neuroprotection adiponectin mechanisms is related to AD pathology alleviation. In this study, we summarize the recent progress that addresses the beneficial effects and potential mechanisms of adiponectin in AD. Furthermore, we review recent studies on the diverse medications of adiponectin that could possibly be related to AD treatment, with a focus on their association with adiponectin. A better understanding of the neuroprotection roles of adiponectin will help clarify the precise underlying mechanism of AD development and progression.
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Affiliation(s)
- Jong Youl Kim
- Department of Anatomy, Yonsei University College of Medicine, Seoul 120-752, Korea; (J.Y.K.); (S.B.); (Y.J.J.)
| | - Sumit Barua
- Department of Anatomy, Yonsei University College of Medicine, Seoul 120-752, Korea; (J.Y.K.); (S.B.); (Y.J.J.)
| | - Ye Jun Jeong
- Department of Anatomy, Yonsei University College of Medicine, Seoul 120-752, Korea; (J.Y.K.); (S.B.); (Y.J.J.)
| | - Jong Eun Lee
- Department of Anatomy, Yonsei University College of Medicine, Seoul 120-752, Korea; (J.Y.K.); (S.B.); (Y.J.J.)
- BK21 Plus Project for Medical Sciences, and Brain Research Institute, Yonsei University College of Medicine, Seoul 120-752, Korea
- Correspondence: ; Tel.: +82-2-2228-1646 (ext. 1659); Fax: +82-2-365-0700
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Kim JY, Barua S, Huang MY, Park J, Yenari MA, Lee JE. Heat Shock Protein 70 (HSP70) Induction: Chaperonotherapy for Neuroprotection after Brain Injury. Cells 2020; 9:cells9092020. [PMID: 32887360 PMCID: PMC7563654 DOI: 10.3390/cells9092020] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/24/2020] [Accepted: 08/26/2020] [Indexed: 12/27/2022] Open
Abstract
The 70 kDa heat shock protein (HSP70) is a stress-inducible protein that has been shown to protect the brain from various nervous system injuries. It allows cells to withstand potentially lethal insults through its chaperone functions. Its chaperone properties can assist in protein folding and prevent protein aggregation following several of these insults. Although its neuroprotective properties have been largely attributed to its chaperone functions, HSP70 may interact directly with proteins involved in cell death and inflammatory pathways following injury. Through the use of mutant animal models, gene transfer, or heat stress, a number of studies have now reported positive outcomes of HSP70 induction. However, these approaches are not practical for clinical translation. Thus, pharmaceutical compounds that can induce HSP70, mostly by inhibiting HSP90, have been investigated as potential therapies to mitigate neurological disease and lead to neuroprotection. This review summarizes the neuroprotective mechanisms of HSP70 and discusses potential ways in which this endogenous therapeutic molecule could be practically induced by pharmacological means to ultimately improve neurological outcomes in acute neurological disease.
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Affiliation(s)
- Jong Youl Kim
- Department of Anatomy, Yonsei University College of Medicine, Seoul 03722, Korea; (J.Y.K.); (S.B.); (M.Y.H.); (J.P.)
| | - Sumit Barua
- Department of Anatomy, Yonsei University College of Medicine, Seoul 03722, Korea; (J.Y.K.); (S.B.); (M.Y.H.); (J.P.)
| | - Mei Ying Huang
- Department of Anatomy, Yonsei University College of Medicine, Seoul 03722, Korea; (J.Y.K.); (S.B.); (M.Y.H.); (J.P.)
- BK21 Plus Project for Medical Science and Brain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea
| | - Joohyun Park
- Department of Anatomy, Yonsei University College of Medicine, Seoul 03722, Korea; (J.Y.K.); (S.B.); (M.Y.H.); (J.P.)
- BK21 Plus Project for Medical Science and Brain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea
| | - Midori A. Yenari
- Department of Neurology, University of California, San Francisco & the San Francisco Veterans Affairs Medical Center, Neurology (127) VAMC 4150 Clement St., San Francisco, CA 94121, USA
- Correspondence: (M.A.Y.); (J.E.L.); Tel.: +1-415-750-2011 (M.A.Y.); +82-2-2228-1646 (ext. 1659) (J.E.L.); Fax: +1-415-750-2273 (M.A.Y.); +82-2-365-0700 (J.E.L.)
| | - Jong Eun Lee
- Department of Anatomy, Yonsei University College of Medicine, Seoul 03722, Korea; (J.Y.K.); (S.B.); (M.Y.H.); (J.P.)
- BK21 Plus Project for Medical Science and Brain Research Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea
- Correspondence: (M.A.Y.); (J.E.L.); Tel.: +1-415-750-2011 (M.A.Y.); +82-2-2228-1646 (ext. 1659) (J.E.L.); Fax: +1-415-750-2273 (M.A.Y.); +82-2-365-0700 (J.E.L.)
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Barua S, Muthiah K, Sevastos J, Macdonald P, Hayward C. 161 Renal Histology associated With Cardiorenal Syndrome in Patients With Advanced Heart Failure. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Barua S, Muthiah K, Macdonald P, Hayward C. 622 Renal Resistive Index and Acute Kidney Injury During Mechanical Circulatory Support. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Barua S, Kim JW, Sim AY, Kim JY, Lee JE. Agmatine can potentiate the M2 microglial phenotype via transcription factor IRF2/KLF2. IBRO Rep 2019. [DOI: 10.1016/j.ibror.2019.07.794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Abstract
Oxidative stress is a key player in both chronic and acute brain disease due to the higher metabolic demand of the brain. Among the producers of free radicals, NADPH-oxidase (NOX) is a major contributor to oxidative stress in neurological disorders. In the brain, the superoxide produced by NOX is mainly found in leukocytes. However, recent studies have reported that it can be found in several other cell types. NOX has been reported to regulate neuronal signaling, memory processing, and central cardiovascular homeostasis. However, overproduction of NOX can contribute to neurotoxicity, CNS degeneration, and cardiovascular disorders. Regarding the above functions, NOX has been shown to play a crucial role in chronic CNS diseases like Parkinson's disease (PD), Alzheimer's disease (AD), Huntington's disease (HD), multiple sclerosis (MS), and amyotrophic lateral sclerosis (ALS), and in acute CNS disorders such as stroke, spinal cord injury, traumatic brain injury (TBI), and related cerebrovascular diseases. NOX is a multi-subunit complex consisting of two membrane-associated and four cytosolic subunits. Thus, in recent years, inhibition of NOX activity has drawn a great deal of attention from researchers in the field of treating chronic and acute CNS disorders and preventing secondary complications. Mounting evidence has shown that NOX inhibition is neuroprotective and that inhibiting NOX in circulating immune cells can improve neurological disease conditions. This review summarizes recent studies on the therapeutic effects and pharmacological strategies regarding NOX inhibitors in chronic and acute brain diseases and focuses on the hurdles that should be overcome before their clinical implementation.
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Affiliation(s)
- Sumit Barua
- Department of Anatomy, College of Medicine, Yonsei University, Republic of Korea
| | - Jong Youl Kim
- Department of Anatomy, College of Medicine, Yonsei University, Republic of Korea
| | - Midori A Yenari
- Department of Neurology, San Francisco Veterans Affairs Medical Center, University of California, San Francisco, 4150 Clement Street, MS 127, San Francisco, CA, 94121, United States
| | - Jong Eun Lee
- Department of Anatomy, College of Medicine, Yonsei University, Republic of Korea.,Brain Korea 21, PLUS Project for Medical Science, College of Medicine, Yonsei University, Republic of Korea.,Brain Research Institute, College of Medicine, Yonsei University, Republic of Korea
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Barua S, Rhee J, Cho E, Qureshi A, Walker J. 537 Psychosocial burden of skin caner is associated with age and sex. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Oh Y, Park J, Huang M, Barua S, Lee JE. Abstract TP125: Temporal Alteration of Infiltrated Macrophage and Resident Microglia Following Focal Cerebral Ischemia Model in Mice. Stroke 2019. [DOI: 10.1161/str.50.suppl_1.tp125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Stroke, a devastating brain damage, is the second cause of adult disability and death following the heart disease worldwide. As the blood supply is insufficient to the brain tissue followed by occlusion of the cerebral artery, molecular cues generated by cerebral ischemia activate the components of innate immunity, promote inflammatory signaling and contribute to tissue damage. Microglia known as an immune cell in the central nervous system (CNS) has functions similar to those of macrophages in the periphery. Moreover, blood-brain barrier (BBB) causes the infiltration of blood-derived macrophages. However, the interaction between the microglia and blood-derived macrophage is still unknown. We used CX3CR1::EGFP transgenic mice to visualize the microglia and blood-derived macrophage dynamics on neuroinflammatory responses.
Methods:
We used CX3CR1::EGFP transcriptional reporter gene mice to visualize the microglia and macrophages to injured brain tissue on neuroinflammatory responses following transient middle cerebral artery occlusion (tMCAO) modeling. Also, we performed two-photon microscopy for intra-vital imaging, time-dependently.
Results:
Our preliminary data showed that it is morphologically possible to distinguish activated microglia and infiltrated macrophages from the resident microglia specifically in FACS and Immunohistochemistry. In addition, blood-derived macrophages and brain microglia showed different polarization patterns by specific markers (Iba1, Tmem119, CD86, CD206, and CD45) in time-dependent manners (n=5 /sham, 6 hours, 1, 3, 5, 7 days) after tMCAO. Furthermore, we performed the cytokine/chemokine array to evaluate the level of specific cytokine/chemokine on ischemic stroke using the brain tissue. In results, the levels of brain tissue of specific cytokine/chemokine showed different levels in all experimental time courses.
Conclusion:
Taken together, the overall data demonstrated that dynamics of microglia and blood-derived macrophage using specific type of transgenic mice could be a novel strategy for regulating the M2 anti-inflammatory microglia phenotype rather than M1 pro-inflammatory microglia and finding the optimal time point of drug treatment attenuating ischemic stroke.
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Affiliation(s)
- Yumi Oh
- Anatomy, Yonsei Univ College of Medicine, Seoul, Korea, Republic of
| | - Joohyun Park
- Anatomy, Yonsei Univ College of Medicine, Seoul, Korea, Republic of
| | - Meiying Huang
- Anatomy, Yonsei Univ College of Medicine, Seoul, Korea, Republic of
| | - Sumit Barua
- Anatomy, Yonsei Univ College of Medicine, Seoul, Korea, Republic of
| | - Jong Eun Lee
- Anatomy, Yonsei Univ College of Medicine, Seoul, Korea, Republic of
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Oh Y, Kim JY, Kim JY, Barua S, Lee JE. Abstract TP137: Suppression of Microrna Let-7a Expression Promotes Neurogenesis in Arginine Decarboxylase-neural Stem Cells After Ischemia. Stroke 2019. [DOI: 10.1161/str.50.suppl_1.tp137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Introduction:
Neural stem cells (NSCs) have been studied as promising novel treatments for central nervous system (CNS) disorders due to the potential of differentiation into neuron. To increase the therapeutic efficiency of NSCs, we have focused on microRNA
let-7a
(
let-7a
), known as the regulator of diverse cellular mechanisms and agmatine, an endogenous primary amine synthesized from decarboxylation of L-arginine catalyzed by arginine decarboxylase (ADC) and a neurotransmitter reported to affect neuroprotection in CNS. The purpose of this study is to investigate the role of arginine metabolic enzyme which regulated
let-7a
in neural stem cell differentiation.
Methods:
Cortical NSCs were isolated from pregnant imprinting control region mice and used for experiments after 2-3 passages. After
let-7a
mimic and agmatine treatment, we performed by RT-PCR, western blot and immunocytochemistry. To confirm the effects of arginine metabolic enzyme and
let-7a
in vivo
, mice were subjected to distal middle cerebral artery occlusion (dMCAO). Following dMCAO, mice were treated agmatine by intraperitoneal injection,
let-7a
mimic by osmotic pump and human ADC gene delivery into the NSCs using retroviral vector (
vh
ADC)-NSCs via intracranial injection at the corpus callosum.
Results:
In vitro
study suggested that high levels of
let-7a
promoted the expression of TLX and c-Myc, as well as repressed DCX and ERK expression. In addition, agmatine attenuated the expression of TLX and increased the expression of ERK by negatively regulating
let-7a
. Also, after dMCAO, we found that
vh
ADC-NSC and
let-7a
co-treatment group reduced the infarct volume, increased the expression of DCX, Neurogenin2, Olig2, and attenuated the expression of GFAP.
Conclusion:
In the present study, we found that agmatine can enhance NSC differentiation into neurons by modulating expression of
let-7a
.
In vivo
study showed that
vh
ADC-NSC and
let-7a
co-treatment promoted neurogenesis and inhibited glial differentiation in the treatment of neural stem cell transplantation in ischemic condition. Therefore, our study suggests that the therapeutic efficiency of the
vh
ADC-NSC on neural stem cell differentiation through suppression of
let-7a
of the CNS diseases.
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Affiliation(s)
- Yumi Oh
- Anatomy, Yonsei Univ College of Medicine, Seoul, Korea, Republic of
| | - Jong Youl Kim
- Anatomy, Yonsei Univ College of Medicine, Seoul, Korea, Republic of
| | - Jae Young Kim
- Anatomy, Yonsei Univ College of Medicine, Seoul, Korea, Republic of
| | - Sumit Barua
- Anatomy, Yonsei Univ College of Medicine, Seoul, Korea, Republic of
| | - Jong Eun Lee
- Anatomy, Yonsei Univ College of Medicine, Seoul, Korea, Republic of
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Huang M, Kim JY, Park J, Barua S, Lee JE. Abstract TP317: Chemokine Production by Microglia Mediates Blood-Derived Monocytes Trafficking in Neuroinflammation. Stroke 2019. [DOI: 10.1161/str.50.suppl_1.tp317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Introduction:
After ischemic stroke, microglia and recruited macrophages play major roles in neuroinflammation. We explored how these cells affect counterpart’s polarization and infiltration and revealed some chemokines and receptors can be important modulators of the interaction.
Methods:
BV2 (microglia cell line) were treated with lipopolysaccharides (LPS) or interleukin-4, and the supernatant was collected as M1 or M2 conditioned media of BV2. The supernatant of PMA differentiated THP-1 (monocyte cell line) followed by LPS treatment or interleukin-13 & IL-4co-treatment were collected as M1 or M2 conditioned media of THP-1. After BV2 or THP-1 cultured in conditioned media, the activation and polarization were assessed by ICC and confocal microscopy for CD11b, CD86 and CD206. Transwell inserts of 3 and 8 μm pore membrane were used for THP-1 infiltration and BV2 migration assay. M1/M2 conditioned media of BV2 and THP-1 and the brain tissue of ischemic mouse model were assessed by proteome profiler array (PPA) to find target cytokine and chemokine. THP-1 pretreated with antagonists of CCR2, CCR4, CXCR4 and CCR5 were used for infiltration assay, the expression of chemokine receptor in THP-1 were confirmed by western blotting.
Results:
Both THP-1 and BV2 expressed CD206 when cultured in M2 conditioned media of BV2 or THP-1. M2 conditioned media of BV2 increased the infiltratory ability of THP-1 while M1 conditioned media of THP-1 enhanced BV2 migration. After ischemic stroke, chemokines were significantly expressed at 3 days than at 7 days in the PPA and several chemokines such as CCL2, CCL3, CCL4 and CCL5 were match to the conditioned media of BV2 while their receptor CCR4, CCR5 shows high expression in THP-1. Antagonists of CCR2, CCR4 and CCR5 significantly reduced the infiltration ability of THP-1 to BV2 M2 conditioned media.
Conclusion:
CCL2, CCL3, CCL4, CCL5 and their receptors CCR4, CCR5 can be strong candidates of target proteins in new therapeutic strategies to acute brain inflammation by modulating the functions of microglia and monocytes.
“This research was supported by the Brain Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Science, ICT & Future Planning(NRF-2016M3C7A1905098)“
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Affiliation(s)
- Meiying Huang
- Anatomy, BK21 Plus Project for Med Science, Yonsei Univ College of Medicin, Seoul, Korea, Republic of
| | - Jong Youl Kim
- Anatomy, Yonsei Univ College of Medicine, Seoul, Korea, Republic of
| | - Joohyun Park
- Anatomy, BK21 Plus Project for Med Science, Yonsei Univ College of Medicine, Seoul, Korea, Republic of
| | - Sumit Barua
- Anatomy, Yonsei Univ College of Medicine, Seoul, Korea, Republic of
| | - Jong Eun Lee
- Anatomy, BK21 Plus Project for Med Science, Brain Rsch Institute, Yonsei Univ College of Medicine, Seoul, Korea, Republic of
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Barua S, Kim JY, Lee JE. Role of Agmatine on Neuroglia in Central Nervous System Injury. Brain Neurorehabil 2019. [DOI: 10.12786/bn.2019.12.e2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Sumit Barua
- Department of Anatomy, Yonsei University College of Medicine, Seoul, Korea
| | - Jong Youl Kim
- Department of Anatomy, Yonsei University College of Medicine, Seoul, Korea
| | - Jong Eun Lee
- Department of Anatomy, Yonsei University College of Medicine, Seoul, Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
- Brain Research Institute, Yonsei University College of Medicine, Seoul, Korea
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Chandru P, Barua S, Dennis M, Eslick A, Kruit N, Coggins A. A Prospective 3-Year Review of out of Hospital Cardiac Arrest Presentations to a University-Affiliated Tertiary Centre. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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Elhalawani H, Volpe S, Cardenas C, Barua S, Rock C, Lin T, Yang P, Wu H, Zaveri J, Elgohari B, Abdallah L, Jethanandani A, Mohamed A, Hutcheson K, Gunn G, Rosenthal D, Frank S, Garden A, Rao A, Fuller C. Development of Temporal Dose-Weighted Positron Emission Tomography Metabolic Imaging Biomarkers (PET MIBs) of Radiation-Related Parotid Glands Injury in Oropharyngeal Cancer Patients. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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31
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Barua S, Saikia N. 2.1-O4Explaining the religious disparity and associated risk factors of diabetes in Southern India. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky047.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S Barua
- Jawaharlal Nehru University, New Delhi, India
| | - N Saikia
- Jawaharlal Nehru University, New Delhi, India
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Elhalawani H, Volpe S, Barua S, Mohamed A, Yang P, Ng S, Lai S, Hutcheson K, Gunn G, Court L, Rao A, Fuller C. Exploration of an Early Imaging Biomarker of Osteoradionecrosis in Oropharyngeal Cancer Patients: Case-Control Study of the Temporal Changes of Mandibular Radiomics Features. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2017.12.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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33
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Reddy SM, Reuben A, Jiang H, Roszik J, Tetzlaff MT, Reuben J, Wang L, Tsujikawa T, Barua S, Rao A, Villareal L, Wood A, Woodward W, Ueno NT, Krishnamurthy S, Wargo JA, Mittendorf EA. Abstract P3-05-08: Lymphoid and myeloid cell characterization of inflammatory breast cancer tumor microenvironment and correlation to pathological complete response. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p3-05-08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Inflammatory breast cancer (IBC) is an aggressive form of breast cancer with poor response rates to current chemotherapy regimens. With recent successes of immune targeted therapies in other solid tumors and a growing understanding of how the immune tumor microenvironment (TME) affects non-IBC outcomes, we sought to characterize the immune TME in IBC to identify biomarkers of treatment response and potential targets for drug development.
Methods: Pre-treatment core biopsy samples were identified from the MD Anderson Cancer Center IBC tissue bank from patients with stage III and de novo stage IV (with T4d) disease who received neoadjuvant chemotherapy (NAC) with intent to take to mastectomy. Lymphocytes were characterized by stromal tumor infiltrating lymphocyte (sTIL) quantification, CD8 T cell quantification, and T cell receptor sequencing. PD-L1 expression was assessed using DAKO 22C3 clone on tumor and immune cells. Myeloid cells were characterized using a multiplex immunohistochemistry approach, using CD68 and CD163 for macrophage markers, tryptase for mast cell marker, HLA-DR for class II antigen presentation marker, and cytokeratin as tumor marker. Spatial analyses were performed by determining probabilities of finding cell 1 of interest within 20 uM of cell 2 of interest and computing area under the curve for statistical comparison.
Results: 91 patients with stage III (N=62) or de novo stage IV (n=29) disease were identified. Breast cancer subtype included 25 triple negative, 34 HER2+ and 32 HER2-HR+. 86 patients received a mastectomy, of whom 33 (38.4%) patients experienced a pathologic complete response (pCR). sTIL was higher in stage III tumors (11.9 vs 4.8%, p<0.001) and in those having a pCR (13.8 vs 7.3%, p=0.019). CD8 T cell density (available in 48 cases) similarly was higher in stage III patients (360.3 vs 178.8 counts/mm2, p=0.040) and pCR cases (452.3 vs 219.2 counts/mm2, p=0.080) but also higher in HER2+ disease (560.9 for HER2+ vs 239.9 counts/mm2, p=0.087 for TNBC and 153.6 counts/mm2, p=0.005 for HER2-HR+). T cell clonality (available in 32 cases) ranged from 0.004 to 0.242 but showed no correlation to tumor characteristics or response. PD-L1 complete tumor membranous expression was seen in only 1 of 47 cases, whereas PD-L1 positivity on immune cells was seen on 36.2% of cases; neither correlated to response. Myeloid cell assessment (available in 25 cases) showed higher mast cell infiltration in non-pCR cases (63.8 vs 26.8 counts/mm2, p=0.008) and spatial analysis (performed on 10 cases) identified that closer proximity of mast cells to CD8 T cells correlates with response (AUC 6.0 vs 2.2, p=0.017), suggesting a possible immunosuppressive mechanism. HLA-DR analysis demonstrated no difference by response as a single stain marker, but co-localization of HLA-DR with cell type shows higher HLA-DR expression on tumor cells in non-responders (14.6 vs 1.6%, p=0.031).
Conclusions: Higher TIL and CD8 T cell density are correlated with improved responses to NAC in IBC. Mast cell infiltration and HLA-DR expression on tumor cells are inversely correlated to response and suggest possible mechanisms of resistance. Mast cells could present potential therapeutic target in IBC.
Citation Format: Reddy SM, Reuben A, Jiang H, Roszik J, Tetzlaff MT, Reuben J, Wang L, Tsujikawa T, Barua S, Rao A, Villareal L, Wood A, Woodward W, Ueno NT, Krishnamurthy S, Wargo JA, Mittendorf EA. Lymphoid and myeloid cell characterization of inflammatory breast cancer tumor microenvironment and correlation to pathological complete response [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P3-05-08.
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Affiliation(s)
- SM Reddy
- The University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, TX; Oregon Health and Sciences University, Portland, OR; Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - A Reuben
- The University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, TX; Oregon Health and Sciences University, Portland, OR; Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - H Jiang
- The University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, TX; Oregon Health and Sciences University, Portland, OR; Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - J Roszik
- The University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, TX; Oregon Health and Sciences University, Portland, OR; Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - MT Tetzlaff
- The University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, TX; Oregon Health and Sciences University, Portland, OR; Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - J Reuben
- The University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, TX; Oregon Health and Sciences University, Portland, OR; Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - L Wang
- The University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, TX; Oregon Health and Sciences University, Portland, OR; Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - T Tsujikawa
- The University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, TX; Oregon Health and Sciences University, Portland, OR; Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - S Barua
- The University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, TX; Oregon Health and Sciences University, Portland, OR; Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - A Rao
- The University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, TX; Oregon Health and Sciences University, Portland, OR; Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - L Villareal
- The University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, TX; Oregon Health and Sciences University, Portland, OR; Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - A Wood
- The University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, TX; Oregon Health and Sciences University, Portland, OR; Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - W Woodward
- The University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, TX; Oregon Health and Sciences University, Portland, OR; Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - NT Ueno
- The University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, TX; Oregon Health and Sciences University, Portland, OR; Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - S Krishnamurthy
- The University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, TX; Oregon Health and Sciences University, Portland, OR; Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - JA Wargo
- The University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, TX; Oregon Health and Sciences University, Portland, OR; Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - EA Mittendorf
- The University of Texas MD Anderson Cancer Center, Houston, TX; Morgan Welch Inflammatory Breast Cancer Research Program and Clinic, Houston, TX; Oregon Health and Sciences University, Portland, OR; Kyoto Prefectural University of Medicine, Kyoto, Japan
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Barik SK, Tiwari ON, Adhikari D, Singh PP, Tiwary R, Barua S. Geographic Distribution Pattern of Threatened Plants of India and Steps Taken for their Conservation. CURR SCI INDIA 2018. [DOI: 10.18520/cs/v114/i03/470-503] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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35
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Barua S, Macedo A, Kolb DS, Wynne-Edwards KE, Klein C. Milk-fat globule epidermal growth factor 8 (MFGE8) is expressed at the embryo– and fetal–maternal interface in equine pregnancy. Reprod Fertil Dev 2018; 30:585-590. [DOI: 10.1071/rd17094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 08/14/2017] [Indexed: 01/18/2023] Open
Abstract
Milk-fat globule epidermal growth factor (EGF) 8 protein (MFGE8), also known as lactadherin, promotes cell adhesion in an Arg-Gly-Asp (RGD)-dependent modus via integrins. In the present study, the expression of MFGE8 was examined in equine endometrium during oestrus and at Days 12 and 16 after ovulation in pregnant and non-pregnant mares and in mares during the 5th month of gestation. Results demonstrated that MFGE8 is expressed at the embryo– and fetal–maternal interface in equine pregnancy. In non-pregnant endometrium its expression was upregulated by oestrogen, a finding that was confirmed using endometrial explant culture. MFGE8 was expressed at similar levels by conceptuses collected 13 and 14 days after ovulation and by allantochorion sampled during the 5th month of gestation. Pericytes of endometrial blood vessels displayed strong MFGE8 expression upon in situ hybridisation. During the 5th month of gestation, the fetal side of the allantochorionic villi in particular displayed pronounced staining upon in situ hybridisation, confirming that MFGE8 expression is not restricted to early pregnancy but persists and is present at the fetal–maternal interface. Potential roles of MFGE8 in equine pregnancy include mediating cell–cell adhesion, promotion of angiogenesis and placental transfer of fatty acids.
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36
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Barua S, Sivagangabalan G, Denniss A, Thomas S, Ross D, Chik W, Davis L. Characteristics of Patients with Cardiac Implantable Electronic Device Infection. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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37
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Affiliation(s)
- N.C. Sarkar
- Anthropological Survey of India , Shillong, 793 001, Meghalaya, India
| | - S. Barua
- Anthropological Survey of India, Indian Museum , Calcutta, 700 016, West Bengal, India
| | - R. Th. Varte
- Anthropological Survey of India , Shillong, 793 001, Meghalaya, India
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38
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Knappett PSK, Mailloux BJ, Choudhury I, Khan MR, Michael HA, Barua S, Mondal DR, Steckler MS, Akhter SH, Ahmed KM, Bostick B, Harvey CF, Shamsudduha M, Shuai P, Mihajlov I, Mozumder R, van Geen A. VULNERABILITY OF LOW-ARSENIC AQUIFERS TO MUNICIPAL PUMPING IN BANGLADESH. J Hydrol (Amst) 2016; 539:674-686. [PMID: 28966395 PMCID: PMC5617134 DOI: 10.1016/j.jhydrol.2016.05.035] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Sandy aquifers deposited >12,000 years ago, some as shallow as 30 m, have provided a reliable supply of low-arsenic (As) drinking water in rural Bangladesh. This study concerns the potential risk of contaminating these aquifers in areas surrounding the city of Dhaka where hydraulic heads in aquifers >150 m deep have dropped by 70 m in a few decades due to municipal pumping. Water levels measured continuously from 2012 to 2014 in 12 deep (>150m), 3 intermediate (90-150 m) and 6 shallow (<90 m) community wells, 1 shallow private well, and 1 river piezometer show that the resulting drawdown cone extends 15-35 km east of Dhaka. Water levels in 4 low-As community wells within the 62-147 m depth range closest to Dhaka were inaccessible by suction for up to a third of the year. Lateral hydraulic gradients in the deep aquifer system ranged from 1.7×10-4 to 3.7×10-4 indicating flow towards Dhaka throughout 2012-2014. Vertical recharge on the edge of the drawdown cone was estimated at 0.21±0.06 m/yr. The data suggest that continued municipal pumping in Dhaka could eventually contaminate some relatively shallow community wells.
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Affiliation(s)
- P. S. K. Knappett
- Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY 10964
- Department of Geology and Geophysics, Texas A&M University, College Station, TX 77843
| | - B. J. Mailloux
- Department of Environmental Science, Barnard College, New York, NY 10027
| | - I. Choudhury
- Department of Geology, University of Dhaka, Dhaka 1000, Bangladesh
| | - M. R. Khan
- Department of Geological Sciences, University of Delaware, Newark, DE 19716
| | - H. A. Michael
- Department of Civil and Environmental Engineering, University of Delaware, Newark, DE 19716
| | - S. Barua
- Department of Geology, Kansas State University, Manhattan, KS 66506
| | - D. R. Mondal
- School of Earth & Environmental Sciences, Queens College, Queens, NY 11367
| | - M. S. Steckler
- Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY 10964
| | - S. H. Akhter
- Department of Geology, University of Dhaka, Dhaka 1000, Bangladesh
| | - K. M. Ahmed
- Department of Geology, University of Dhaka, Dhaka 1000, Bangladesh
| | - B. Bostick
- Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY 10964
| | - C. F. Harvey
- Department of Civil & Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - M. Shamsudduha
- Institute for Risk & Disaster Reduction, University College London, London WC1E 6BT, UK
| | - P. Shuai
- Department of Geology and Geophysics, Texas A&M University, College Station, TX 77843
| | - I. Mihajlov
- Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY 10964
| | - R. Mozumder
- Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY 10964
| | - A. van Geen
- Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY 10964
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Sankar MS, Vega MA, Defoe PP, Kibria MG, Ford S, Telfeyan K, Neal A, Mohajerin TJ, Hettiarachchi GM, Barua S, Hobson C, Johannesson K, Datta S. Elevated arsenic and manganese in groundwaters of Murshidabad, West Bengal, India. Sci Total Environ 2014; 488-489:570-9. [PMID: 24694939 DOI: 10.1016/j.scitotenv.2014.02.077] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2013] [Revised: 02/14/2014] [Accepted: 02/14/2014] [Indexed: 05/02/2023]
Abstract
High levels of geogenic arsenic (As) and manganese (Mn) in drinking water has led to widespread health problems for the population of West Bengal, India. Here we delineate the extent of occurrences of As and Mn in Murshidabad, where the contaminated aquifers occur at shallow depths between 35 and 40 m and where access to safe drinking water is a critical issue for the local population. A total of 78 well-water samples were taken in 4 blocks on either side of the river Bhagirathi: Nabagram and Kandi (west, Pleistocene sediments), Hariharpara and Beldanga (east, Holocene sediments). High As, total iron (FeT) and low Mn concentrations were found in waters from the Holocene gray sediment aquifers east of the river Bhagirathi, while the opposite was found in the Pleistocene reddish-brown aquifer west of the river Bhagirathi in Murshidabad. Speciation of As in water samples from Holocene sediments revealed the dominant species to be As(III), with ratios of As(III):AsT ranging from 0.55 to 0.98 (average 0.74). There were indications from saturation index estimations that Mn solubility is limited by the precipitation of MnCO3. Tubewells from high As areas in proximity to anthropogenic waste influx sources showing high molar Cl/Br ratios, low SO4(2-) and low NO3(-) demonstrate relatively lower As concentrations, thereby reducing As pollution in those wells. Analyses of core samples (2 in each of the blocks) drilled to a depth of 45 m indicate that there is no significant variation in bulk As (5-20mg/kg) between the Holocene and Pleistocene sediments, indicating that favorable subsurface redox conditions conducive to mobilization are responsible for the release of As. The same applies to Mn, but concentrations vary more widely (20-2000 mg/kg). Sequential extraction of Holocene sediments showed As to be associated with 'specifically sorbed-phosphate-extractable' phases (10-15%) and with 'amorphous and well crystalline Fe-oxyhydroxide' phases (around 37%) at As-contaminated well depths, suggesting that the main As release mechanisms could be either competitive ion exchange with PO4(3-), or the dissolution of Fe oxyhydroxides. In the Pleistocene sediments Mn is predominantly found in the easily exchangeable fraction.
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Affiliation(s)
- M S Sankar
- Department of Geology, Kansas State University, Manhattan, KS 66506, USA
| | - M A Vega
- Department of Geology, Kansas State University, Manhattan, KS 66506, USA
| | - P P Defoe
- Department of Agronomy, Kansas State University, Manhattan, KS 66506, USA
| | - M G Kibria
- Department of Geology, Kansas State University, Manhattan, KS 66506, USA
| | - S Ford
- Department of Geology, Kansas State University, Manhattan, KS 66506, USA
| | - K Telfeyan
- Department of Earth and Environmental Sciences, Tulane University, New Orleans 70118, USA
| | - A Neal
- Virginia Water Resources Research Center, Virginia Tech, VA 24061, USA
| | - T J Mohajerin
- Department of Earth and Environmental Sciences, Tulane University, New Orleans 70118, USA
| | - G M Hettiarachchi
- Department of Agronomy, Kansas State University, Manhattan, KS 66506, USA
| | - S Barua
- Department of Geology, Kansas State University, Manhattan, KS 66506, USA
| | - C Hobson
- Department of Geology, Kansas State University, Manhattan, KS 66506, USA
| | - K Johannesson
- Department of Earth and Environmental Sciences, Tulane University, New Orleans 70118, USA
| | - S Datta
- Department of Geology, Kansas State University, Manhattan, KS 66506, USA.
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Barbosa J, Barua S, Daumerie D, Nakatani H, Noordeen S, Castália R. J Barbosa and colleagues reply to Diana N J Lockwood and colleagues. BMJ 2014; 348:g2114. [PMID: 24647166 DOI: 10.1136/bmj.g2114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- J Barbosa
- Ministério da Saúde, Brasilia, Brazil
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Bera BC, Virmani N, Shanmugasundaram K, Vaid RK, Singh BK, Gulati BR, Anand T, Barua S, Malik P, Singh RK. Genetic Analysis of the Neuraminidase (NA) Gene of Equine Influenza Virus (H3N8) from Epizootic of 2008-2009 in India. Indian J Virol 2013; 24:256-64. [PMID: 24426284 DOI: 10.1007/s13337-013-0137-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Accepted: 05/02/2013] [Indexed: 11/27/2022]
Abstract
The neuraminidase (NA) gene sequences of four Indian equine influenza viruses (EIVs) isolated from epizootic in 2008 and 2009 were analyzed. The phylogenetic relationship and selection pressure of NA genes were established in comparison to other EIVs circulating worldwide along with the domains and motifs of the encoded protein to find out the significance of mutational changes. Among Indian isolates, two amino acid (aa) changes each in Mysore/12/08 (Asn67Tyr & Asp396Gly), Gopeshwar/1/09 (Ile49Val & Asp396Gly), and Uttarkashi/1/09 (Ile49Val & Asp396Gly) isolates were observed in respect to Jammu-Katra/06/08 isolate. Amino acid (aa) sequence analysis also revealed five consistent aa residue changes viz, Gly/Arg40Glu, Tyr66His, Val191Ile, Val209Ile and Asp235Asn in Asian including Indian isolates, Spain/07 and Spain/09 isolates in comparison to other EIVs circulating worldwide. The topology of the phylogenetic tree revealed that the Indian, Chinese, Mongolian and Kazakhstan isolates together formed a subgroup with Yokohama/10 isolate. Spain/07 & Spain/09 isolates showed closest clustering with Asian isolates. This indicates that non-synonymous mutations in Asian isolates with temporal pattern originating from Spain/07, led to the subgroup of the Asian isolates within Florida clade 2 sublineage. The analysis of the predicted secondary structure has not shown any significant difference in the NA proteins of all Indian isolates. Fixed-effects likelihood (FEL) analysis of the selection pressure revealed three codons (43, 355 & 434) under positive selection pressure. The overall evolutionary changes (ω value) of 3.4 indicates NA gene to be under strong selection pressure. Further, seven putative N-glycosylation sites were observed in the NA protein. The mapping of specific aa changes, their mutational and functional analysis need to be carried out to ascertain their role in pathogenecity of the virus.
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Affiliation(s)
- B C Bera
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
| | - N Virmani
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
| | - K Shanmugasundaram
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
| | - R K Vaid
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
| | - B K Singh
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
| | - B R Gulati
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
| | - T Anand
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
| | - S Barua
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
| | - P Malik
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
| | - R K Singh
- National Research Centre on Equines, Sirsa Road, Hisar, 125001 Haryana India
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Chung JI, Barua S, Choi BH, Min BH, Han HC, Baik EJ. Anti-inflammatory effect of low intensity ultrasound (LIUS) on complete Freund's adjuvant-induced arthritis synovium. Osteoarthritis Cartilage 2012; 20:314-22. [PMID: 22289897 DOI: 10.1016/j.joca.2012.01.005] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Revised: 11/23/2011] [Accepted: 01/10/2012] [Indexed: 02/02/2023]
Abstract
OBJECTIVES Arthritis with intra-articular inflammation was accompanied by joint pain, swelling, and stiffness leading to significant functional impairment. Thus, regulation of joint inflammation is a good therapeutic approach for patients with arthritis. In this study, the effect of low intensity ultrasound (LIUS) applied to an adjuvant-induced arthritic rat model on the synovium was investigated. DESIGN Synovial inflammation was induced by complete Freund's adjuvant (CFA)-injection into the rat knee joint. LIUS (200 mW/cm(2)) was applied on the ipsilateral knee everyday for 10 min beginning 1 day after inflammation induction. The expression of proinflammatory factors and immunohistochemical staining pattern of the synovium were assessed. RESULTS CFA induced an increase of the knee circumference that was significantly diminished by LIUS. Synovial membrane hyperplasia in the ipsilateral joint was also affected by LIUS. The inflammatory mediators, COX-1/2, IL-1β, and iNOS, but not TNF-α, in the synovial membrane were induced after 3 days, and they closely correlated with the degree of edema. In the synovial membrane, the expression of inflammatory mediators was reduced by LIUS. The chemoattractant chemokine receptor CCR5 also was involved. On immunohistochemical analysis, CFA caused increased infiltration of CD11b-positive cells in the synovium. After 3 days, neutrophils, myeloperoxidase (MPO)-positive cells filled the inflammatory core; later, monocytes and macrophages, ionized calcium binding adaptor molecule 1 (Iba1)-positive cells in the periphery infiltrated the core by day 5. LIUS markedly reduced CFA-induced inflammatory cells infiltration. CONCLUSION LIUS showed a potent anti-inflammatory effect in this animal arthritis model with reduced infiltration of inflammatory cells into the synovium.
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Affiliation(s)
- J-I Chung
- Department of Physiology, Chronic Inflammatory Disease Research Center, Ajou University School of Medicine, Yeongtong-gu, Suwon, Republic of Korea
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Narain JP, Dash AP, Parnell B, Bhattacharya SK, Barua S, Bhatia R, Savioli L. Elimination of neglected tropical diseases in the South-East Asia Region of the World Health Organization. Bull World Health Organ 2010; 88:206-10. [PMID: 20428388 DOI: 10.2471/blt.09.072322] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2009] [Revised: 01/26/2010] [Accepted: 01/27/2010] [Indexed: 11/27/2022] Open
Abstract
The neglected tropical diseases (NTDs), which affect the very poor, pose a major public health problem in the South-East Asia Region of the World Health Organization (WHO). Although more than a dozen NTDs affect the region, over the past five years four of them in particular - leprosy, lymphatic filariasis, visceral leishmaniasis (kala-azar) and yaws - have been targeted for elimination. These four were selected for a number of reasons. First, they affect the WHO South-East Asia Region disproportionately. For example, every year around 67% of all new leprosy cases and 60% of all new cases of visceral leishmaniasis worldwide occur in countries of the region, where as many as 850 million inhabitants are at risk of contracting lymphatic filariasis. In addition, several epidemiological, technological and historical factors that are unique to the region make each of these four diseases amenable to elimination. Safe and effective tools and interventions to achieve these targets are available and concerted efforts to scale them up, singly or in an integrated manner, are likely to lead to success. The World Health Assembly and the WHO Regional Committee, through a series of resolutions, have already expressed regional and global commitments for the elimination of these diseases as public health problems. Such action is expected to have a quick and dramatic impact on poverty reduction and to contribute to the achievement of the Millennium Development Goals. This paper reviews the policy rationale for disease control in the WHO South-East Asia Region, the progress made so far, the lessons learnt along the way, and the remaining challenges and opportunities.
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Affiliation(s)
- Jai P Narain
- Department of Communicable Diseases, World Health Organization Regional Office for South-East Asia, IP Estate, Mahatama Gandhi Road, New Delhi 110002, India.
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Abstract
SUMMARY We describe an unusual case of heterosexual HIV transmission between two brothers within a family, due to a locally prevalent social custom of remarriage of the elder brother's widow, to the younger brother. This case of HIV secondary transmission, which could possibly have been stopped at certain points by better understanding and awareness about HIV transmission emphasizes the need for extensive post-test counselling of affected individuals and their family members.
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Affiliation(s)
- N Wal
- Department of Microbiology, Chhatrapati Shahuji MaharajMedical University, Lucknow, Uttar Pradesh, India
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Barua P, Barua S, Borkakoty B, Mahanta J. Onychomycosis by Scytalidium dimidiatum in green tea leaf pluckers: report of two cases. Mycopathologia 2007; 164:193-5. [PMID: 17641983 DOI: 10.1007/s11046-007-9024-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2006] [Accepted: 05/09/2007] [Indexed: 11/29/2022]
Abstract
Two cases of onychomycosis in green tea leaf pluckers caused by Scytalidium dimidiatum, a dematiaceous non-dermatophytic mold has been described. Onychomycosis caused by Scytalidium dimidiatum is clinically indistinguishable from that caused by dermatophytes and responds poorly to antifungals. The clinical presentations in the cases were of distal subungual type with associated melanonychia involving thumbnails. These cases have unique importance, because besides disfigurement, this has adversely affected the livelihood of the patient and poor response to antifungal dissuaded them from treatment compliance. To the best of our knowledge, this is the first report of onychomycosis caused by Scytalidium dimidiatum in green tea leaf pluckers.
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Affiliation(s)
- Purnima Barua
- Regional Medical Research Centre for Northeast, Indian Council of Medical Research, Dibrugarh, Assam, India.
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Barnett S, Azad K, Barua S, Mridha M, Abrar M, Rego A, Khan A, Flatman D, Costello A. Maternal and newborn-care practices during pregnancy, childbirth, and the postnatal period: a comparison in three rural districts in Bangladesh. J Health Popul Nutr 2006; 24:394-402. [PMID: 17591336 PMCID: PMC3001143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The aim of this study was to examine the prevalence of maternal and newborn-care practices among women reporting a birth in the previous year in three districts in different divisions of Bangladesh. In 2003, 6,785 women, who had delivered a newborn infant in the previous year, across three districts in Bangladesh, were interviewed. Overall, less than half of the women received any antenatal care, and 11% received a minimum of four check-ups. Only 18% took iron tablets for at least four months during pregnancy. Over 90% of the 6,785 deliveries took place at home, and only 11% were attended either by a doctor or by a nurse. The mothers reported three key hygienic practices in 54% of deliveries: attendants washing their hands with soap and boiling cord-tie and blade for cutting the cord. Forty-four percent of the 6,785 infants were bathed immediately after delivery, and 42% were given colostrum as their first food. The results suggest that maternal and newborn-care remains a cause of concern in rural Bangladesh. Short-term policies to promote healthy behaviour in the home are needed, in addition to the long-term goal of skilled birth attendance.
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Affiliation(s)
- S Barnett
- UCL Centre for International Health and Development, Institute of Child Health, University College London, 30 Guilford Street, London WC1N 1EH, UK.
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Puthenveetil R, Deka P, Barua S, Baruah S. UP-02.97. Urology 2006. [DOI: 10.1016/j.urology.2006.08.841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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48
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Deka P, Puthenveetil R, Barua S, Baruah S. UP-01.25. Urology 2006. [DOI: 10.1016/j.urology.2006.08.663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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49
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Puthenveetil R, Deka P, Barua S, Baruah S. MP-05.08. Urology 2006. [DOI: 10.1016/j.urology.2006.08.251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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50
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Deka P, Puthenveetil R, Barua S, Baruah S. UP-01.34. Urology 2006. [DOI: 10.1016/j.urology.2006.08.673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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