1
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Varunn MD, Jayakumar R, Tarke C, Juvva KS, Senthil D. Cough remedy leading to chronic cough: An unusual airway foreign body‐Clove. Respirol Case Rep 2023; 11:e01130. [PMID: 36970296 PMCID: PMC10034480 DOI: 10.1002/rcr2.1130] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 03/15/2023] [Indexed: 03/25/2023] Open
Abstract
The spectrum of presentation of airway foreign body can vary from having mild symptoms to sudden death. Smaller foreign body in distal airways, especially if the patient is unaware of aspiration can result in chronic symptoms mimicking asthma. Clove, has been used traditionally for its medicinal values and commonly used as a cough remedy. In this case series, we report four cases of this unusual airway foreign body which were essentially consumed with an intention to prevent cough, but unfortunately became the reason for their cough.
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Affiliation(s)
- M. D. Varunn
- Department of Respiratory MedicinePSG Institute of Medical Sciences and Research, PeelameduCoimbatoreIndia
| | - R. Jayakumar
- Department of Respiratory MedicinePSG Institute of Medical Sciences and Research, PeelameduCoimbatoreIndia
| | | | | | - D. Senthil
- Department of Respiratory MedicinePSG Institute of Medical Sciences and Research, PeelameduCoimbatoreIndia
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2
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Kugarajah V, Nisha KN, Jayakumar R, Sahabudeen S, Ramakrishnan P, Mohamed SB. Significance of microbial genome in environmental remediation. Microbiol Res 2023; 271:127360. [PMID: 36931127 DOI: 10.1016/j.micres.2023.127360] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/27/2023] [Accepted: 03/08/2023] [Indexed: 03/11/2023]
Abstract
Environmental pollutants seriously threaten the ecosystem and health of various life forms, particularly with the rapid industrialization and emerging population. Conventionally physical and chemical strategies are being opted for the removal of these pollutants. Bioremediation, through several advancements, has been a boon to combat the existing threat faced today. Microbes with enzymes degrade various pollutants and utilize them as a carbon and energy source. With the existing demand and through several research explorations, Genetically Engineered Microorganisms (GEMs) have paved to be a successful approach to abate pollution through bioremediation. The genome of the microbe determines its biodegradative nature. Thus, methods including pure culture techniques and metagenomics are used for analyzing the genome of microbes, which provides information about catabolic genes. The information obtained along with the aid of biotechnology helps to construct GEMs that are cost-effective and safer thereby exhibiting higher degradation of pollutants. The present review focuses on the role of microbes in the degradation of environmental pollutants, role of evolution in habitat and adaptation of microbes, microbial degenerative genes, their pathways, and the efficacy of recombinant DNA (rDNA) technology for creating GEMs for bioremediation. The present review also provides a gist of existing GEMs for bioremediation and their limitations, thereby providing a future scope of implementation of these GEMs for a sustainable environment.
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Affiliation(s)
- Vaidhegi Kugarajah
- Department of Nanobiomaterials, Institute for Biomedical Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai 602015, India
| | | | - R Jayakumar
- Department of Nanobiomaterials, Institute for Biomedical Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai 602015, India
| | - S Sahabudeen
- Department of Biotechnology, SRM Institute of Science and Technology, Kanchipuram Dist, Kattankulathur, Tamil Nadu, India; Medical Team, Doctoral Institute for Evidence Based Policy, Tokyo, Japan
| | - P Ramakrishnan
- Department of Nanobiomaterials, Institute for Biomedical Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai 602015, India.
| | - S B Mohamed
- Department of Materials Science, School of Technology, Central University of Tamil Nadu, Thiruvarur 610005, Tamil Nadu, India.
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3
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Thirumalaiselvan PS, Raman M, Remya L, Jayakumar R, Sakthivel M, Tamilmani G, Sankar M, Anikuttan KK, Menon NN, Saravanan R, Ravikumar TT, Narasimapallavan I, Krishnaveni N, Muniasamy V, Batcha SM, Gopalakrishnan A. Monitoring of Harmful Algal Bloom (HAB) of Noctiluca scintillans (Macartney) along the Gulf of Mannar, India using in-situ and satellite observations and its impact on wild and maricultured finfishes. Mar Pollut Bull 2023; 188:114611. [PMID: 36731375 DOI: 10.1016/j.marpolbul.2023.114611] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 01/07/2023] [Accepted: 01/09/2023] [Indexed: 06/18/2023]
Abstract
In the Gulf of Mannar, Noctiluca scintillans blooms have been observed three times in September 2019, September and October 2020, and October 2021. It was determined and measured how the bloom period affects ichthyo-diversity. Noctiluca cell density varied slightly from year to year, ranging from1.8433 × 103 cells/L to 1.3824 x 106cells/L. In surface and sea bottom waters, high ammonia levels and low dissolved oxygen levels were noted. During the bloom period a significant increase in chlorophyll concentration was found. The amount of chlorophyll in GOM was extremely high, according to remote sensing photos made using MODIS-Aqua 4 km data. Acute hypoxia caused the death of wild fish near coral reefs and also in fish reared in sea cages. The decay of the bloom resulted in significant ammonia production, a dramatic drop in the amount of dissolved oxygen in the water, and ultimately stress, shock, and mass mortality of fishes.
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Affiliation(s)
- P S Thirumalaiselvan
- Mandapam Regional Centre, Central Marine Fisheries Research Institute, Mandapam Camp, India
| | - Mini Raman
- Space Applications Centre, Indian Space Research Organization (ISRO), Ahmedabad, Gujarat 380015, India
| | - L Remya
- Mandapam Regional Centre, Central Marine Fisheries Research Institute, Mandapam Camp, India
| | - R Jayakumar
- Central Institute of Brackish water Aquaculture, No. 75, Santhome High Road, Chennai, India
| | - M Sakthivel
- Mandapam Regional Centre, Central Marine Fisheries Research Institute, Mandapam Camp, India
| | - G Tamilmani
- Mandapam Regional Centre, Central Marine Fisheries Research Institute, Mandapam Camp, India
| | - M Sankar
- Mandapam Regional Centre, Central Marine Fisheries Research Institute, Mandapam Camp, India
| | - K K Anikuttan
- Mandapam Regional Centre, Central Marine Fisheries Research Institute, Mandapam Camp, India
| | - N Nandini Menon
- Nansen Environmental Research Centre India (NERCI), Kochi, India
| | - Raju Saravanan
- Mandapam Regional Centre, Central Marine Fisheries Research Institute, Mandapam Camp, India
| | - T T Ravikumar
- Mandapam Regional Centre, Central Marine Fisheries Research Institute, Mandapam Camp, India
| | | | - N Krishnaveni
- Mandapam Regional Centre, Central Marine Fisheries Research Institute, Mandapam Camp, India
| | - V Muniasamy
- Mandapam Regional Centre, Central Marine Fisheries Research Institute, Mandapam Camp, India
| | - S M Batcha
- Mandapam Regional Centre, Central Marine Fisheries Research Institute, Mandapam Camp, India
| | - A Gopalakrishnan
- Mandapam Regional Centre, Central Marine Fisheries Research Institute, Mandapam Camp, India
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4
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Pradeep A, Ashok N, Priya V, Pillai AV, Menon RR, Kumar VA, Jayakumar R. Colistimethate sodium-chitosan hydrogel for treating Gram-negative bacterial wound infections. Int J Biol Macromol 2022; 214:610-616. [PMID: 35752341 DOI: 10.1016/j.ijbiomac.2022.06.113] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 06/09/2022] [Accepted: 06/14/2022] [Indexed: 11/29/2022]
Abstract
The drug resistance is higher among Gram-negative bacteria and demands the usage of strong antibiotics which can in turn result in systemic toxicity. In the treatment of the chronic wounds harboring pathogenic Gram-negative bacteria, the demand for an antimicrobial product that can be topically administered has been on the rise. In an effort to address the above issue, we have developed Colistimethate sodium (a high-end antibiotic) loaded chitosan hydrogel and characterized. The prepared hydrogel is very stable and observed to be bio- and hemo-compatible in nature. The antibacterial activity of the prepared hydrogel was studied against both ATCC (American Type Culture Collection) strains and clinical isolates of Escherichia coli, Pseudomonas aeruginosa and Klebsiella pneumoniae. The CMS incorporated hydrogel is also capable of inhibiting the biofilm formation. The developed hydrogel can be potentially being used for the treatment of Gram-negative bacterial infected wounds.
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Affiliation(s)
- Aathira Pradeep
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Nivethitha Ashok
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - V Priya
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Anoop V Pillai
- Department of General Surgery, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Riju Ramachandran Menon
- Department of General Surgery, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - V Anil Kumar
- Department of Microbiology, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - R Jayakumar
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, India.
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5
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Prabu DL, Ebeneezar S, Chandrasekar S, Kalidas C, Kavitha M, Vijayagopal P, Anikuttan K, Jayakumar R. Evaluation of a modified feeding strategy on the growth, metabolism and feeding economics of Snubnose Pompano Trachinotus blochii (Lacepede, 1801) in a recirculatory system. Anim Feed Sci Technol 2022. [DOI: 10.1016/j.anifeedsci.2022.115348] [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: 11/01/2022]
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6
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Noor HA, Hossain AS, Jayakumar R, Darwish A, Shivappa S, Amin H, Yousif N. Polymer Emboli Complicating Transcatheter Aortic Valve Implantation: A Case Report. JACC Case Rep 2022; 4:543-548. [PMID: 35573856 PMCID: PMC9091518 DOI: 10.1016/j.jaccas.2022.02.011] [Citation(s) in RCA: 1] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 02/11/2022] [Accepted: 02/17/2022] [Indexed: 10/29/2022]
Abstract
Hydrophilic polymers are frequently used as surface coatings in modern intravascular technologies. We hereby present a case of a patient who underwent transcatheter aortic valve implantation that was complicated with foot gangrene and mesenteric ischemia, necessitating emergency enterectomy. Histologic examination revealed hydrophilic polymer emboli as the culprit of these complications. (Level of Difficulty: Intermediate.).
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Affiliation(s)
- Husam A Noor
- Mohammed Bin Khalifa Specialist Cardiac Centre (MKCC), Awali, Kingdom of Bahrain
| | - Ahmed S Hossain
- Mohammed Bin Khalifa Specialist Cardiac Centre (MKCC), Awali, Kingdom of Bahrain
| | - Rajesh Jayakumar
- Mohammed Bin Khalifa Specialist Cardiac Centre (MKCC), Awali, Kingdom of Bahrain
| | - Abdulla Darwish
- Department of Pathology, Bahrain Defense Force Hospital, Riffa, Kingdom of Bahrain
| | - Sadananda Shivappa
- Mohammed Bin Khalifa Specialist Cardiac Centre (MKCC), Awali, Kingdom of Bahrain
| | - Haitham Amin
- Mohammed Bin Khalifa Specialist Cardiac Centre (MKCC), Awali, Kingdom of Bahrain
| | - Nooraldaem Yousif
- Mohammed Bin Khalifa Specialist Cardiac Centre (MKCC), Awali, Kingdom of Bahrain
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7
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Jayakumar R, Nair KKN. Invasion and distribution of exotic plants in the tropical forests of Western Ghats, India. Trop Ecol 2022. [DOI: 10.1007/s42965-021-00191-0] [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: 10/19/2022]
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8
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Mohan K, Muralisankar T, Jayakumar R, Rajeevgandhi C. A study on structural comparisons of α-chitin extracted from marine crustacean shell waste. Carbohydrate Polymer Technologies and Applications 2021. [DOI: 10.1016/j.carpta.2021.100037] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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9
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Pandian M, Kumar VA, Jayakumar R. Antiseptic chitosan bandage for preventing topical skin infections. Int J Biol Macromol 2021; 193:1653-1658. [PMID: 34742845 DOI: 10.1016/j.ijbiomac.2021.11.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 10/18/2021] [Accepted: 11/01/2021] [Indexed: 01/16/2023]
Abstract
Infections on the wound surface are the major problem in restricting the healing process. To reduce the transmission and treat the infection, we have developed 0.05% and 0.1% octenidine dihydrochloride (Ocd) incorporated chitosan (Cs) based flexible bandages. Ocd is extensively used skin antiseptic for its mode of action over a broad spectrum of antimicrobial activity. The prepared antiseptic Cs-Ocd bandage was characterized using Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscope (SEM). In addition, swelling, degradation, cytocompability, antibacterial, and anti-biofilm property of the developed bandages were studied. This highly porous nature of Cs-Ocd bandage showed enhanced swelling property, slow degradation profile and controlled release of Ocd. The prepared antiseptic bandage exhibited synergistic effect showing good hemostatic potential with Cs, excellent antimicrobial and anti-biofilm activity with Ocd against Staphylococcus aureus (S. aureus) and Candida auris (C. auris). Thus, the developed Cs-Ocd bandage can be used as potential antiseptic bandage for skin infections.
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Affiliation(s)
- Mahalakshmi Pandian
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, Kerala, India
| | - V Anil Kumar
- Department of Microbiology, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - R Jayakumar
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, Kerala, India.
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10
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Abstract
Efficient and economical treatment for color removal in the effluent of dyeing units and the dyestuff production units have always need an emerging technologies. In general physical methods such as adsorption, ion exchange and filtration/coagulation methods, chemical methods like ionization, Fenton reagent, photo catalytic & biological processes namely aerobic/anaerobic degradation, biosorption are used for dye removal. Adsorption using solid materials (i.e.) adsorbents, considered as an effective process for color removal, because of its higher efficiency over other processes. Researchers made an attempt to use various non-conventional, low-cost, naturally-occurring biomasses as adsorbent, which may be mineral, organic or biological materials. These include fruit peels, seeds, leaves, bark, sawdust, straw, ash sludge and other materials that are available in abundant quantity. The various methods showed the color removal capability of adsorbents; mainly based on the processing methods and the variety of dye. In this review, various dye adsorbents and their capacity for removing the dyes from various effluents is highlighted.
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11
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Poorna MR, Jayakumar R, Chen JP, Mony U. Hydrogels: A potential platform for induced pluripotent stem cell culture and differentiation. Colloids Surf B Biointerfaces 2021; 207:111991. [PMID: 34333302 DOI: 10.1016/j.colsurfb.2021.111991] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 07/16/2021] [Accepted: 07/18/2021] [Indexed: 01/02/2023]
Abstract
Induced pluripotent stem cells (iPSCs) can be used to generate desired types of cells that belong to the three germ layers (i.e., ectoderm, endoderm and mesoderm). These cells possess great potential in regenerative medicine. Before iPSCs are used in various biomedical applications, the existing xenogeneic culture methods must be improved to meet the technical standards of safety, cost effectiveness, and ease of handling. In addition to commonly used 2D substrates, a culture system that mimics the native cellular environment in tissues will be a good choice when culturing iPS cells and differentiating them into different lineages. Hydrogels are potential candidates that recapitulate the native complex three-dimensional microenvironment. They possess mechanical properties similar to those of many soft tissues. Moreover, hydrogels support iPSC adhesion, proliferation and differentiation to various cell types. They are xeno-free and cost-effective. In addition to other substrates, such as mouse embryonic fibroblast (MEF), Matrigel, and vitronectin, the use of hydrogel-based substrates for iPSC culture and differentiation may help generate large numbers of clinical-grade cells that can be used in potential clinical applications. This review mainly focuses on the use of hydrogels for the culture and differentiation of iPSCs into various cell types and their potential applications in regenerative medicine.
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Affiliation(s)
- M R Poorna
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - R Jayakumar
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Jyh-Ping Chen
- Department of Chemical and Materials Engineering, Chang Gung University, Kwei-San, Taoyuan 33302, Taiwan, ROC; Department of Plastic and Reconstructive Surgery and Craniofacial Research Center, Chang Gung Memorial Hospital, Linkou, Kwei-San, Taoyuan 33305, Taiwan, ROC; Research Center for Food and Cosmetic Safety, Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33305, Taiwan, ROC.
| | - Ullas Mony
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi 682041, India; Department of Biochemistry, Centre of Molecular Medicine and Diagnostics (COMManD), Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 600077, India.
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12
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Kovoor CC, Jayakumar R, Manjunath S. Melanotic Neuroectodermal Tumor of Infancy in the Ulna of an Infant: A Very Rare Tumor: A Case Report. JBJS Case Connect 2021; 11:01709767-202103000-00045. [PMID: 33684079 DOI: 10.2106/jbjs.cc.20.00239] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
CASE A 4-month-old boy presented with a nontender swelling of the right proximal forearm of 2 months' duration. Radiological evaluation showed lytic lesion surrounded by sclerotic bone in the ulna with soft-tissue extension. Histopathological examination showed tumor of round and epithelioid cells containing melanin, interpreted as melanotic neuroectodermal tumor. The patient underwent a wide excision of the shaft of the ulna with creation of radioulnar synostosis. There is no recurrence 6 years after surgery. CONCLUSION Melanotic neuroectodermal tumor is rare in the appendicular skeleton and has to be differentiated from other round cell tumors and osteomyelitis. As far as we know, this is the first reported case in the ulna.
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Affiliation(s)
- Cherry Cheriyan Kovoor
- Department of Orthopaedics and Limb reconstruction, Specialist's Hospital, Kochi, Kerala, India
| | - R Jayakumar
- Department of Plastic and Microvascular Surgery, Specialist's Hospital, Kochi, Kerala, India
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13
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Kim HD, Park J, Amirthalingam S, Jayakumar R, Hwang NS. Bioinspired inorganic nanoparticles and vascular factor microenvironment directed neo-bone formation. Biomater Sci 2021; 8:2627-2637. [PMID: 32242197 DOI: 10.1039/d0bm00041h] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Various strategies have been explored to stimulate new bone formation. These strategies include using angiogenic stimulants in combination with inorganic biomaterials. Neovascularization during the neo-bone formation provides nutrients along with bone-forming minerals. Therefore, it is crucial to design a bone stimulating microenvironment composed of both pro-angiogenic and osteogenic factors. In this respect, human vascular endothelial growth factor (hVEGF) has been shown to promote blood vessel formation and bone formation. Furthermore, in recent years, whitlockite (WH), a novel phase of magnesium-containing calcium phosphate derivatives that exist in our bone tissue, has been synthesized and applied in bone tissue engineering. In this study, our aim is to explore the potential use of hVEGF and WH for bone tissue engineering. Our study demonstrated that hVEGF and a WH microenvironment synergistically stimulated osteogenic commitment of mesenchymal stem cells both in vitro and in vivo.
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Affiliation(s)
- Hwan D Kim
- School of Chemical and Biological Engineering, the Institute of Chemical Processes, Seoul National University, Seoul, 151-742, Republic of Korea.
| | - Jungha Park
- School of Chemical and Biological Engineering, the Institute of Chemical Processes, Seoul National University, Seoul, 151-742, Republic of Korea.
| | - Sivashanmugam Amirthalingam
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - R Jayakumar
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Nathaniel S Hwang
- School of Chemical and Biological Engineering, the Institute of Chemical Processes, Seoul National University, Seoul, 151-742, Republic of Korea. and Interdisciplinary Program in Bioengineering, Seoul National University, 151-742, Seoul, Republic of Korea and The BioMax/N-Bio Institute of Seoul National University, Seoul, 151-742, Republic of Korea
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Kumar PS, Srinivasan S, Lakshmanan VK, Tamura H, Nair S, Jayakumar R. Corrigendum to “β-Chitin hydrogel/nano hydroxyapatite composite scaffolds for tissue engineering applications” [Carbohydr. Polym. 85 (2011) 584–591]. Carbohydr Polym 2020. [DOI: 10.1016/j.carbpol.2020.116895] [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: 12/01/2022]
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15
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Rejinold NS, Muthunarayanan M, Chennazhi K, Nair S, Jayakumar R. Corrigendum to “Biodegradable and thermo-sensitive chitosan-g-poly(N-vinylcaprolactam) nanoparticles as a 5-fluorouracil carrier” [Carbohydr. Polym. 83 (2011) 776–786]. Carbohydr Polym 2020. [DOI: 10.1016/j.carbpol.2020.116898] [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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16
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Anitha A, Deepa N, Chennazhi K, Nair S, Tamura H, Jayakumar R. Corrigendum to “Development of mucoadhesive thiolated chitosan nanoparticles for biomedical applications” [Carbohydrate Polymers 83 (2011) 66–73]. Carbohydr Polym 2020. [DOI: 10.1016/j.carbpol.2020.116901] [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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17
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Shalumon K, Binulal N, Selvamurugan N, Nair S, Menon D, Furuike T, Tamura H, Jayakumar R. Corrigendum to “Electrospinning of carboxymethyl chitin/poly (vinyl alcohol) nanofibrous scaffolds for tissue engineering applications” [Carbohydr. Polym. 77 (2009) 863–869]. Carbohydr Polym 2020. [DOI: 10.1016/j.carbpol.2020.116897] [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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18
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Sudheesh Kumar P, Abhilash S, Manzoor K, Nair S, Tamura H, Jayakumar R. Corrigendum to “Preparation and characterization of novel β-chitin/nanosilver composite scaffolds for wound dressing applications” [Carbohydr. Polym. 80 (2010) 761–767]. Carbohydr Polym 2020. [DOI: 10.1016/j.carbpol.2020.116896] [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: 10/23/2022]
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19
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Rejinold NS, Thomas RG, Muthiah M, Chennazhi KP, Park IK, Jeong YY, Manzoor K, Jayakumar R. Retraction: Radio frequency triggered curcumin delivery from thermo and pH responsive nanoparticles containing gold nanoparticles and its in vivo localization studies in an orthotopic breast tumor model. RSC Adv 2020; 10:28483. [PMID: 35532389 PMCID: PMC9055946 DOI: 10.1039/d0ra90082f] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 07/24/2020] [Indexed: 11/21/2022] Open
Abstract
Retraction of ‘Radio frequency triggered curcumin delivery from thermo and pH responsive nanoparticles containing gold nanoparticles and its in vivo localization studies in an orthotopic breast tumor model’ by N. Sanoj Rejinold et al., RSC Adv., 2014, 4, 39408–39427, DOI: 10.1039/C4RA05727A.
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Affiliation(s)
- N. Sanoj Rejinold
- Amrita Centre for Nanosciences and Molecular Medicine
- Amrita Institute of Medical Sciences and Research Centre
- Amrita Vishwa Vidyapeetham University
- Kochi-682041
- India
| | - Reju George Thomas
- Department of Radiology
- Chonnam National University Hwasun Hospital
- Chonnam National University Medical School
- Gwangju 501-746
- South Korea
| | - Muthunarayanan Muthiah
- Department of Biomedical Science
- BK21 PLUS Center for Creative Biomedical Scientists
- Chonnam National University Medical School
- Gwangju 501-746
- South Korea
| | - K. P. Chennazhi
- Amrita Centre for Nanosciences and Molecular Medicine
- Amrita Institute of Medical Sciences and Research Centre
- Amrita Vishwa Vidyapeetham University
- Kochi-682041
- India
| | - In-Kyu Park
- Department of Biomedical Science
- BK21 PLUS Center for Creative Biomedical Scientists
- Chonnam National University Medical School
- Gwangju 501-746
- South Korea
| | - Yong Yeon Jeong
- Department of Radiology
- Chonnam National University Hwasun Hospital
- Chonnam National University Medical School
- Gwangju 501-746
- South Korea
| | - K. Manzoor
- Amrita Centre for Nanosciences and Molecular Medicine
- Amrita Institute of Medical Sciences and Research Centre
- Amrita Vishwa Vidyapeetham University
- Kochi-682041
- India
| | - R. Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine
- Amrita Institute of Medical Sciences and Research Centre
- Amrita Vishwa Vidyapeetham University
- Kochi-682041
- India
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Chandirasekar R, Murugan K, Muralisankar T, Uthayakumar V, Jayakumar R, Mohan K, Vasugi C, Mathivanan R, Mekala S, Jagateesh A, Suresh K. Genotoxic effects of tobacco use in residents of hilly areas and foot hills of Western Ghats, Southern India. Sci Rep 2019; 9:14898. [PMID: 31624274 PMCID: PMC6797791 DOI: 10.1038/s41598-019-51275-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 02/12/2019] [Accepted: 09/06/2019] [Indexed: 11/20/2022] Open
Abstract
Smoking and smokeless tobacco consumption is a significant risk factor that provokes genetic alterations. The present investigation was to evaluate the biomarkers of genotoxicity including micronucleus (MN), chromosome aberrations (CA) and DNA strand breaks among tobacco consumers and control individuals residing in hilly areas of Western Ghats, Tamilnadu, South India. This study included 268 tobacco consumers with equal number of controls. The tobacco consumers were divided into Group I (<10 years of tobacco consumption with an age range from 15 to 35 years) and group II (>10 years consumption above 35 years of age). Chromosome aberration (CA) and comet assay were performed using blood and micronucleus assay from exfoliated buccal epithelial cells obtained from tobacco consumers and controls. Elevated levels of CA were found in group II (Chromatid type: 2.39 ± 1.13 and chromosome type: 1.44 ± 1.24) exposed subjects, high micronucleus and DNA damage (TL:4.48 ± 1.24 and TM:3.40 ± 1.58) levels were significantly (p < 0.05) observed in both smoking and smokeless tobacco consumers when comparison with group I and controls. This study also observed a lack of awareness among the tobacco consumers about the harmful health effects of tobacco. Tobacco consumption contributes to the significant alteration in genetic materials. In addition, a high rate of spontaneous abortion was also seen in the studied population.
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Affiliation(s)
- R Chandirasekar
- Human Molecular Genetics Laboratory, PG and Research Department of Zoology, Sri Vasavi College, Erode, 638316, Tamilnadu, India.
| | - K Murugan
- Department of Zoology, Bharathiar University, Coimbatore, 641046, Tamilnadu, India
- Thiruvalluvar University, Serkkadu, Vellore, 632 115, India
| | - T Muralisankar
- Department of Zoology, Bharathiar University, Coimbatore, 641046, Tamilnadu, India
| | - V Uthayakumar
- Human Molecular Genetics Laboratory, PG and Research Department of Zoology, Sri Vasavi College, Erode, 638316, Tamilnadu, India
| | - R Jayakumar
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, 50603, Malaysia
| | - K Mohan
- Human Molecular Genetics Laboratory, PG and Research Department of Zoology, Sri Vasavi College, Erode, 638316, Tamilnadu, India
- Centre of Advanced Study in Marine Biology, Faculty of Marine Science, Annamalai University, Parangipettai, Tamil nadu, 608 502, India
| | - C Vasugi
- Human Molecular Genetics Laboratory, PG and Research Department of Zoology, Sri Vasavi College, Erode, 638316, Tamilnadu, India
| | - R Mathivanan
- Human Molecular Genetics Laboratory, PG and Research Department of Zoology, Sri Vasavi College, Erode, 638316, Tamilnadu, India
| | - S Mekala
- Human Molecular Genetics Laboratory, PG and Research Department of Zoology, Sri Vasavi College, Erode, 638316, Tamilnadu, India
| | - A Jagateesh
- PG & Research Department of Zoology Chikkaiah Naicker College, 638004, Erode, Tamilnadu, India
| | - K Suresh
- Department of Zoology, Bharathiar University, Coimbatore, 641046, Tamilnadu, India
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21
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Sanoj Rejinold N, Muthunarayanan M, Divyarani VV, Sreerekha PR, Chennazhi KP, Nair SV, Tamura H, Jayakumar R. Corrigendum to "Curcumin-loaded biocompatible thermoresponsive polymeric nanoparticles for cancer drug delivery" [J. Colloid Interface Sci. 360 (2011) 39-51]. J Colloid Interface Sci 2019; 553:864-865. [PMID: 31378342 DOI: 10.1016/j.jcis.2019.06.043] [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: 10/26/2022]
Affiliation(s)
- N Sanoj Rejinold
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682 041, India
| | - M Muthunarayanan
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682 041, India
| | - V V Divyarani
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682 041, India
| | - P R Sreerekha
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682 041, India
| | - K P Chennazhi
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682 041, India
| | - S V Nair
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682 041, India
| | - H Tamura
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Osaka 564-8680, Japan
| | - R Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682 041, India.
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22
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Kumar PTS, Srinivasan S, Lakshmanan VK, Tamura H, Nair SV, Jayakumar R. Corrigendum to "Synthesis, characterization and cytocompatibility studies of α-chitin hydrogel/nano hydroxyapatite composite scaffolds" [Int. J. Biol. Macromol. 49 (2011) 20-31]. Int J Biol Macromol 2019; 138:1138-1141. [PMID: 31279592 DOI: 10.1016/j.ijbiomac.2019.06.156] [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: 11/25/2022]
Affiliation(s)
- P T Sudheesh Kumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India
| | - Sowmya Srinivasan
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India
| | - Vinoth-Kumar Lakshmanan
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India
| | - H Tamura
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Osaka 564-8680, Japan
| | - S V Nair
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India
| | - R Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India.
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Kumar PS, Lakshmanan VK, Biswas R, Nair SV, Jayakumar R. Synthesis and Biological Evaluation of Chitin Hydrogel/Nano ZnO Composite Bandage as Antibacterial Wound Dressing (Journal of Biomedical Nanotechnology, Vol. 8(6), pp. 891–900 (2012)). J Biomed Nanotechnol 2019; 15:1994-1995. [DOI: 10.1166/jbn.2019.2824] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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24
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Arunraj TR, Sanoj Rejinold N, Kumar NA, Jayakumar R. Corrigendum to "Bio-responsive chitin-poly(l-lactic acid) composite nanogels for liver cancer" [Colloids Surf. B 113 (2014) 394-402]. Colloids Surf B Biointerfaces 2019; 181:76. [PMID: 31125920 DOI: 10.1016/j.colsurfb.2019.05.021] [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: 10/26/2022]
Affiliation(s)
- T R Arunraj
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi, 682041, India
| | - N Sanoj Rejinold
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi, 682041, India
| | - N Ashwin Kumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi, 682041, India
| | - R Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi, 682041, India.
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25
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Tamura H, Furuike T, Jayakumar R. Special issue: 12th APCCS-14th ICCC-2018-chemistry, environmental, biotechnology and biomedical aspects of chitin and chitosan. Int J Biol Macromol 2019; 141:387. [PMID: 31446100 DOI: 10.1016/j.ijbiomac.2019.08.177] [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: 10/26/2022]
Affiliation(s)
- H Tamura
- Faculty of Chemistry, Materials and Bio-engineering, Kansai University, Suita, Osaka 564-8680, Japan.
| | - T Furuike
- Faculty of Chemistry, Materials and Bio-engineering, Kansai University, Suita, Osaka 564-8680, Japan.
| | - R Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682 041, Kerala, India.
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26
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Jayakumar R, Ramachandran R, Divyarani VV, Chennazhi KP, Tamura H, Nair SV. Corrigendum to "Fabrication of chitin-chitosan/nano TiO 2-composite scaffolds for tissue engineering applications" [Int. J. Biol. Macromol. 48 (2011) 336-344]. Int J Biol Macromol 2019; 135:1285-1287. [PMID: 31256977 DOI: 10.1016/j.ijbiomac.2019.06.154] [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: 10/26/2022]
Affiliation(s)
- R Jayakumar
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India.
| | - Roshni Ramachandran
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - V V Divyarani
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - K P Chennazhi
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - H Tamura
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Osaka 564-8680, Japan
| | - S V Nair
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India.
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27
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Jayakumar R, Ramachandran R, Kumar PTS, Divyarani VV, Srinivasan S, Chennazhi KP, Tamura H, Nair SV. Corrigendum to "Fabrication of chitin-chitosan/nano ZrO 2 composite scaffolds for tissue engineering applications" [Int. J. Biol. Macromol. 49 (2011) 274-280]. Int J Biol Macromol 2019; 135:1283-1284. [PMID: 31255323 DOI: 10.1016/j.ijbiomac.2019.06.153] [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: 11/25/2022]
Affiliation(s)
- R Jayakumar
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India.
| | - Roshni Ramachandran
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - P T Sudheesh Kumar
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - V V Divyarani
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Sowmya Srinivasan
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - K P Chennazhi
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - H Tamura
- Faculty of Chemistry, Materials and Bioengineering, Kansai University, Osaka 564-8680, Japan
| | - S V Nair
- Amrita Centre for Nanosciences, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India.
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28
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Jaikumar D, Sajesh KM, Soumya S, Nimal TR, Chennazhi KP, Nair SV, Jayakumar R. Corrigendum to "Injectable alginate-O-carboxymethyl chitosan/nano fibrin composite hydrogels for adipose tissue engineering" [Int. J. Biol. Macromol., 74 (2015) 318-326]. Int J Biol Macromol 2019; 135:1276. [PMID: 31253367 DOI: 10.1016/j.ijbiomac.2019.06.072] [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: 10/26/2022]
Affiliation(s)
- Dhanya Jaikumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India
| | - K M Sajesh
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India
| | - S Soumya
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India
| | - T R Nimal
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India
| | - K P Chennazhi
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India
| | - Shantikumar V Nair
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India.
| | - R Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India.
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29
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Rejinold NS, Sreerekha PR, Chennazhi KP, Nair SV, Jayakumar R. Corrigendum to "Biocompatible, biodegradable and thermo-sensitive chitosan-g-poly(N-isopropylacrylamide) nanocarrier for curcumin drug delivery" [Int. J. Biol. Macromol. 49 (2011) 161-172]. Int J Biol Macromol 2019; 135:1279-1282. [PMID: 31253371 DOI: 10.1016/j.ijbiomac.2019.06.074] [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: 10/26/2022]
Affiliation(s)
- N Sanoj Rejinold
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - P R Sreerekha
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - K P Chennazhi
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - S V Nair
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - R Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India.
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30
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Rejinold NS, Thomas RG, Muthiah M, Chennazhi KP, Manzoor K, Park IK, Jeong YY, Jayakumar R. Corrigendum to "Anti-cancer, pharmacokinetics and tumor localization studies of pH-, RF- and thermo-responsive nanoparticles" [Int. J. Biol. Macromol. 74 (2015) 249-262]. Int J Biol Macromol 2019; 135:1274-1275. [PMID: 31253369 DOI: 10.1016/j.ijbiomac.2019.06.071] [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: 11/30/2022]
Affiliation(s)
- N Sanoj Rejinold
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India
| | - Reju George Thomas
- Department of Radiology, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Gwangju 501-746, South Korea
| | - Muthunarayanan Muthiah
- Department of Biomedical Science and BK21 PLUS Center for Creative Biomedical Scientists, Chonnam National University Medical School, Gwangju 501-746, South Korea
| | - K P Chennazhi
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India
| | - K Manzoor
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India
| | - In-Kyu Park
- Department of Biomedical Science and BK21 PLUS Center for Creative Biomedical Scientists, Chonnam National University Medical School, Gwangju 501-746, South Korea.
| | - Yong Yeon Jeong
- Department of Radiology, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Gwangju 501-746, South Korea
| | - R Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi 682041, India.
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31
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Kumar PTS, Lakshmanan VK, Anilkumar TV, Ramya C, Reshmi P, Unnikrishnan AG, Nair SV, Jayakumar R. Retraction of "Flexible and Microporous Chitosan Hydrogel/Nano ZnO Composite Bandages for Wound Dressing: In Vitro and In Vivo Evaluation". ACS Appl Mater Interfaces 2019; 11:28596. [PMID: 31347354 DOI: 10.1021/acsami.9b11759] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
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Rejinold NS, Biswas R, Chellan G, Jayakumar R. Corrigendum to "Multifaceted chitin/poly(lactic-co-glycolic) acid composite nanogels" [Int. J. Biol. Macromol., 67 (2014) 279-288]. Int J Biol Macromol 2019; 134:1216. [PMID: 31076182 DOI: 10.1016/j.ijbiomac.2019.04.150] [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: 10/26/2022]
Affiliation(s)
- N Sanoj Rejinold
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India
| | - Raja Biswas
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India
| | - Gopi Chellan
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India
| | - R Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India.
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Shalumon KT, Anulekha KH, Chennazhi KP, Tamura H, Nair SV, Jayakumar R. Corrigendum to "Fabrication of chitosan/poly(caprolactone) nanofibrous scaffold for bone and skin tissue engineering" [Int. J. Biol. Macromol. 48 (2011) 571-576]. Int J Biol Macromol 2019; 134:1217. [PMID: 31076183 DOI: 10.1016/j.ijbiomac.2019.04.151] [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: 11/30/2022]
Affiliation(s)
- K T Shalumon
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Viswa Vidyapeetham, Kochi 682 041, India
| | - K H Anulekha
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Viswa Vidyapeetham, Kochi 682 041, India
| | - K P Chennazhi
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Viswa Vidyapeetham, Kochi 682 041, India
| | - H Tamura
- Faculty of Chemistry, Materials and Bioengineering and High Technology Research Centre, Kansai University, Osaka 564-8680, Japan
| | - S V Nair
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Viswa Vidyapeetham, Kochi 682 041, India.
| | - R Jayakumar
- Amrita Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Viswa Vidyapeetham, Kochi 682 041, India.
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Shalumon KT, Anulekha KH, Nair SV, Nair SV, Chennazhi KP, Jayakumar R. Corrigendum to "Sodium alginate/poly(vinyl alcohol)/nano ZnO composite nanofibers for antibacterial wound dressings" [Int. J. Biol. Macromol., 49 (2011) 247-254]. Int J Biol Macromol 2019; 134:1218. [PMID: 31076181 DOI: 10.1016/j.ijbiomac.2019.04.152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- K T Shalumon
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India
| | - K H Anulekha
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India
| | - Sreeja V Nair
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India
| | - S V Nair
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India.
| | - K P Chennazhi
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India
| | - R Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India.
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Sajesh K, Jayakumar R, Nair SV, Chennazhi K. Corrigendum to “Biocompatible conducting chitosan/polypyrrole-alginate composite scaffold for bone tissue engineering” [Int. J. Biol. Macromol. 62 (2013) 465–471]. Int J Biol Macromol 2019; 134:1221. [DOI: 10.1016/j.ijbiomac.2019.04.155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Sudheesh Kumar P, Ramya C, Jayakumar R, Nair SKV, Lakshmanan VK. Corrigendum to “Drug delivery and tissue engineering applications of biocompatible pectin-chitin/nano CaCO3 composite scaffolds” [Colloids Surf. B: Biointerfaces 106 (2013) 109–116]. Colloids Surf B Biointerfaces 2019; 179:517-518. [DOI: 10.1016/j.colsurfb.2019.04.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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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37
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Narayanan D, Anitha A, Jayakumar R, Chennazhi KP. PTH 1-34 Loaded Thiolated Chitosan Nanoparticles for Osteoporosis: Oral Bioavailability and Anabolic Effect on Primary Osteoblast Cells (Journal of Biomedical Nanotechnology, Vol. 10(1), pp. 166-178 (2014)). J Biomed Nanotechnol 2019; 15:1354. [PMID: 31072442 DOI: 10.1166/jbn.2019.2753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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38
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Arunraj TR, Rejinold SN, Mangalathillam S, Saroj S, Biswas R, Jayakumar R. Synthesis, Characterization and Biological Activities of Curcumin Nanospheres (Journal of Biomedical Nanotechnology, Vol. 10(2), pp. 238-250 (2014)). J Biomed Nanotechnol 2019; 15:1355-1356. [PMID: 31072443 DOI: 10.1166/jbn.2019.2754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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39
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Chirayath RB, A. AV, Jayakumar R, Biswas R, Vijayachandran LS. Development of Mangifera indica leaf extract incorporated carbopol hydrogel and its antibacterial efficacy against Staphylococcus aureus. Colloids Surf B Biointerfaces 2019; 178:377-384. [DOI: 10.1016/j.colsurfb.2019.03.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 02/28/2019] [Accepted: 03/14/2019] [Indexed: 01/30/2023]
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Anitha A, Sreeranganathan M, Chennazhi KP, Lakshmanan VK, Jayakumar R. Corrigendum to "In vitro combinatorial anticancer effects of 5-fluorouracil and curcumin loaded N,O-carboxymethyl chitosan nanoparticles toward colon cancer and in vivo pharmacokinetic studies" [Eur. J. Pharmaceut. Biopharmaceut. 88 (2014) 238-251]. Eur J Pharm Biopharm 2019; 139:44-46. [PMID: 31054763 DOI: 10.1016/j.ejpb.2019.03.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A Anitha
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, India
| | - Maya Sreeranganathan
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, India
| | - Krishna Prasad Chennazhi
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, India
| | - Vinoth-Kumar Lakshmanan
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, India
| | - R Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi, India.
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41
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Alphonsa BM, Kumar PTS, Praveen G, Biswas R, Chennazhi KP, Jayakumar R. Correction to: Antimicrobial Drugs Encapsulated in Fibrin Nanoparticles for Treating Microbial Infested Wounds. Pharm Res 2019; 36:88. [PMID: 31004233 DOI: 10.1007/s11095-019-2617-4] [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: 11/24/2022]
Abstract
In the original manuscript, the Figure 2 a-i is inadvertently repeated as Figure 2 a-ii. This mistake has been rectified and the corrected Figure 2 is presented below.
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Affiliation(s)
- B Maria Alphonsa
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita VishwaVidyapeetham University, Kochi, 682041, India
| | - P T Sudheesh Kumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita VishwaVidyapeetham University, Kochi, 682041, India
| | - G Praveen
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita VishwaVidyapeetham University, Kochi, 682041, India
| | - Raja Biswas
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita VishwaVidyapeetham University, Kochi, 682041, India
| | - K P Chennazhi
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita VishwaVidyapeetham University, Kochi, 682041, India.
| | - R Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita VishwaVidyapeetham University, Kochi, 682041, India.
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Anitha A, Deepa N, Chennazhi KP, Lakshmanan VK, Jayakumar R. Corrigendum to "Combinatorial anticancer effects of curcumin and 5-fluorouracil loaded thiolated chitosan nanoparticles towards colon cancer treatment" [Biochimica et Biophysica Acta 1840 (2014) 2730-2743]. Biochim Biophys Acta Gen Subj 2019; 1863:992. [PMID: 30876689 DOI: 10.1016/j.bbagen.2019.03.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A Anitha
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India
| | - N Deepa
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India
| | - K P Chennazhi
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India
| | - Vinoth-Kumar Lakshmanan
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India
| | - R Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Ponekkara, Kochi 682041, India..
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Narayanan D, Anitha A, Jayakumar R, Chennazhi KP. Correction to " In Vitro and in Vivo Evaluation of Osteoporosis Therapeutic Peptide PTH 1-34 Loaded PEGylated Chitosan Nanoparticles". Mol Pharm 2019; 16:1421. [PMID: 30793607 DOI: 10.1021/acs.molpharmaceut.9b00171] [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: 11/29/2022]
Affiliation(s)
- Deepa Narayanan
- Amrita Centre for Nanosciences and Molecular Medicine , Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University , Kochi 682041 , India
| | - A Anitha
- Amrita Centre for Nanosciences and Molecular Medicine , Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University , Kochi 682041 , India
| | - R Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine , Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University , Kochi 682041 , India
| | - K P Chennazhi
- Amrita Centre for Nanosciences and Molecular Medicine , Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University , Kochi 682041 , India
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Sudheesh Kumar PT, Praveen G, Raj M, Chennazhi KP, Jayakumar R. Correction: Flexible, micro-porous chitosan–gelatin hydrogel/nanofibrin composite bandages for treating burn wounds. RSC Adv 2019; 9:15571-15572. [PMID: 35532484 PMCID: PMC9064348 DOI: 10.1039/c9ra90033k] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 05/07/2019] [Indexed: 12/03/2022] Open
Abstract
Correction for ‘Flexible, micro-porous chitosan–gelatin hydrogel/nanofibrin composite bandages for treating burn wounds’ by P. T. Sudheesh Kumar et al., RSC Adv., 2014, 4, 65081–65087.
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Affiliation(s)
- P. T. Sudheesh Kumar
- Amrita Centre for Nanosciences and Molecular Medicine
- Amrita Institute of Medical Sciences and Research Centre
- Amrita Vishwa Vidyapeetham University
- Kochi-682041
- India
| | - G. Praveen
- Amrita Centre for Nanosciences and Molecular Medicine
- Amrita Institute of Medical Sciences and Research Centre
- Amrita Vishwa Vidyapeetham University
- Kochi-682041
- India
| | - Mincy Raj
- Amrita Centre for Nanosciences and Molecular Medicine
- Amrita Institute of Medical Sciences and Research Centre
- Amrita Vishwa Vidyapeetham University
- Kochi-682041
- India
| | - K. P. Chennazhi
- Amrita Centre for Nanosciences and Molecular Medicine
- Amrita Institute of Medical Sciences and Research Centre
- Amrita Vishwa Vidyapeetham University
- Kochi-682041
- India
| | - R. Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine
- Amrita Institute of Medical Sciences and Research Centre
- Amrita Vishwa Vidyapeetham University
- Kochi-682041
- India
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Yegappan R, Selvaprithiviraj V, Amirthalingam S, Mohandas A, Hwang NS, Jayakumar R. Injectable angiogenic and osteogenic carrageenan nanocomposite hydrogel for bone tissue engineering. Int J Biol Macromol 2018; 122:320-328. [PMID: 30401650 DOI: 10.1016/j.ijbiomac.2018.10.182] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/24/2018] [Accepted: 10/25/2018] [Indexed: 12/22/2022]
Abstract
Functional biomaterials that couple angiogenesis and osteogenesis processes are vital for bone tissue engineering and bone remodeling. Herein we developed an injectable carrageenan nanocomposite hydrogel incorporated with whitlockite nanoparticles and an angiogenic drug, dimethyloxallylglycine. Synthesized whitlockite nanoparticles and nanocomposite hydrogels were characterized using SEM, TEM, EDS and FTIR. Developed hydrogels were injectable, mechanically stable, cytocompatible and has better protein adsorption. Incorporation of dimethyloxallylglycine resulted in initial burst release followed by sustained release for 7 days. Human umbilical vein endothelial cells exposed to dimethyloxallylglycine incorporated nanocomposite hydrogel showed enhanced cell migration and capillary tube-like structure formation. Osteogenic differentiation in rat adipose derived mesenchymal stem cells after 7 and 14 days revealed increased levels of alkaline phosphatase activity in vitro. Furthermore, cells exposed to nanocomposite hydrogel revealed enhanced protein expressions of RUNX2, COL and OPN. Overall, these results suggest that incorporation of whitlockite and dimethyloxallylglycine in carrageenan hydrogel promoted osteogenesis and angiogenesis in vitro.
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Affiliation(s)
- Ramanathan Yegappan
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Vignesh Selvaprithiviraj
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Sivashanmugam Amirthalingam
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Annapoorna Mohandas
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Nathaniel S Hwang
- School of Chemical and Biological Engineering, Institute of Chemical Processes, BioMAX Institute, Seoul National University, Seoul, South Korea
| | - R Jayakumar
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India.
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Nivedhitha Sundaram M, Deepthi S, Mony U, Shalumon KT, Chen JP, Jayakumar R. Chitosan hydrogel scaffold reinforced with twisted poly(l lactic acid) aligned microfibrous bundle to mimic tendon extracellular matrix. Int J Biol Macromol 2018; 122:37-44. [PMID: 30359657 DOI: 10.1016/j.ijbiomac.2018.10.151] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 09/11/2018] [Accepted: 10/21/2018] [Indexed: 11/30/2022]
Abstract
Regeneration of tendon requires construct that provides necessary structural support closely mimicking the native architecture. To recreate this complex architecture a construct made of heat-treated, twisted poly(L lactic acid) (PLLA) microfibers coated with chitosan gel and surrounded by PLLA micro-fibrous layer was developed. The developed construct characterized using SEM showed the macroporous nature of gel coating around four distinct PLLA twisted fibrous bundle and a thin fiber layer surrounding the construct. FTIR analysis confirmed the presence of PLLA and chitosan construct. Mechanical strength increased with increasing number of strips. Protein adsorption was significantly low on the construct with outer covering that could retard cell adhesion to the outer layer. The developed construct showed good cell attachment and proliferation of tenocytes. These results indicate that the construct would find application for tendon tissue engineering.
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Affiliation(s)
- M Nivedhitha Sundaram
- Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Center, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - S Deepthi
- Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Center, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Ullas Mony
- Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Center, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - K T Shalumon
- Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 333, Taiwan, ROC
| | - Jyh-Ping Chen
- Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 333, Taiwan, ROC
| | - R Jayakumar
- Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Center, Amrita Vishwa Vidyapeetham, Kochi 682041, India.
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Mohandas A, Deepthi S, Biswas R, Jayakumar R. Chitosan based metallic nanocomposite scaffolds as antimicrobial wound dressings. Bioact Mater 2018; 3:267-277. [PMID: 29744466 PMCID: PMC5935789 DOI: 10.1016/j.bioactmat.2017.11.003] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [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: 06/10/2017] [Revised: 11/17/2017] [Accepted: 11/17/2017] [Indexed: 12/20/2022] Open
Abstract
Chitosan based nanocomposite scaffolds have attracted wider applications in medicine, in the area of drug delivery, tissue engineering and wound healing. Chitosan matrix incorporated with nanometallic components has immense potential in the area of wound dressings due to its antimicrobial properties. This review focuses on the different combinations of Chitosan metal nanocomposites such as Chitosan/nAg, Chitosan/nAu, Chitosan/nCu, Chitosan/nZnO and Chitosan/nTiO2 towards enhancement of healing or infection control with special reference to the antimicrobial mechanism of action and toxicity.
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Affiliation(s)
| | | | | | - R. Jayakumar
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Center, Amrita Vishwa Vidyapeetham, Kochi, 682 041, India
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48
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Kwon S, Lee SS, Sivashanmugam A, Kwon J, Kim SHL, Noh MY, Kwon SK, Jayakumar R, Hwang NS. Bioglass-Incorporated Methacrylated Gelatin Cryogel for Regeneration of Bone Defects. Polymers (Basel) 2018; 10:polym10080914. [PMID: 30960839 PMCID: PMC6403913 DOI: 10.3390/polym10080914] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [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: 07/12/2018] [Revised: 08/09/2018] [Accepted: 08/10/2018] [Indexed: 12/21/2022] Open
Abstract
Cryogels have recently gained interest in the field of tissue engineering as they inherently possess an interconnected macroporous structure. Considered to be suitable for scaffold cryogel fabrication, methacrylated gelatin (GelMA) is a modified form of gelatin valued for its ability to retain cell adhesion site. Bioglass nanoparticles have also attracted attention in the field due to their osteoinductive and osteoconductive behavior. Here, we prepare methacrylated gelatin cryogel with varying concentration of bioglass nanoparticles to study its potential for bone regeneration. We demonstrate that an increase in bioglass concentration in cryogel leads to improved mechanical property and augmented osteogenic differentiation of mesenchymal cells during in vitro testing. Furthermore, in vivo testing in mice cranial defect model shows that highest concentration of bioglass nanoparticles (2.5 w/w %) incorporated in GelMA cryogel induces the most bone formation compared to the other tested groups, as studied by micro-CT and histology. The in vitro and in vivo results highlight the potential of bioglass nanoparticles incorporated in GelMA cryogel for bone regeneration.
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Affiliation(s)
- Song Kwon
- School of Chemical and Biological Engineering, the Institute of Chemical Processes, Seoul National University, Seoul 08826, Korea.
| | - Seunghun S Lee
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul 08826, Korea.
| | - A Sivashanmugam
- Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Center, Amrita Vishwa Vidyapeetham, Kochi 682041, India.
| | - Janet Kwon
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul 08826, Korea.
| | - Seung Hyun L Kim
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul 08826, Korea.
| | - Mi Yeon Noh
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul 08826, Korea.
| | - Seong Keun Kwon
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul 08826, Korea.
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul 03080, Korea.
| | - R Jayakumar
- Center for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Center, Amrita Vishwa Vidyapeetham, Kochi 682041, India.
| | - Nathaniel S Hwang
- School of Chemical and Biological Engineering, the Institute of Chemical Processes, Seoul National University, Seoul 08826, Korea.
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul 08826, Korea.
- BioMAX/N-Bio Institute, Seoul National University, Seoul 08826, Korea.
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Yegappan R, Selvaprithiviraj V, Amirthalingam S, Jayakumar R. Carrageenan based hydrogels for drug delivery, tissue engineering and wound healing. Carbohydr Polym 2018; 198:385-400. [PMID: 30093014 DOI: 10.1016/j.carbpol.2018.06.086] [Citation(s) in RCA: 210] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 06/18/2018] [Accepted: 06/20/2018] [Indexed: 10/28/2022]
Abstract
Carrageenan is a class of naturally occurring sulphated polysaccharides, which is currently a promising candidate in tissue engineering and regenerative medicine as it resemblances native glycosaminoglycans. From pharmaceutical drug formulations to tissue engineered scaffolds, carrageenan has broad range of applications. Here we provide an overview of developing various forms of carrageenan based hydrogels. We focus on how these fabrication processes has an effect on physiochemical properties of the hydrogel. We outline the application of these hydrogels not only pertaining to sustained drug release but also their application in bone and cartilage tissue engineering as well as in wound healing and antimicrobial formulations. Administration of these hydrogels through various routes for drug delivery applications has been critically reviewed. Finally, we conclude by summarizing the current and future outlook that promotes the seaweed-derived polysaccharide as versatile, promising biomaterial for a variety of bioengineering applications.
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Affiliation(s)
- Ramanathan Yegappan
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Vignesh Selvaprithiviraj
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - Sivashanmugam Amirthalingam
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India
| | - R Jayakumar
- Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Kochi 682041, India.
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Rajitha P, Biswas R, Sabitha M, Jayakumar R. Methotrexate in the Treatment of Psoriasis and Rheumatoid Arthritis: Mechanistic Insights, Current Issues and Novel Delivery Approaches. Curr Pharm Des 2018; 23:3550-3566. [PMID: 28571554 DOI: 10.2174/1381612823666170601105439] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 05/09/2017] [Accepted: 05/24/2017] [Indexed: 11/22/2022]
Abstract
Our review is focused on the use of methotrexate in drug therapy of two autoimmune diseases, psoriasis and rheumatoid arthritis (RA). The article describes the pathogenesis of psoriasis and RA, the role of methotrexate in the treatment of these diseases with more focused review on the mechanism behind the clinical benefits of methotrexate therapy. Methotrexate due to its cytotoxic, anti-inflammatory and immune modulatory activities provides clinical benefits in the therapy of the selected diseases. This review also gives a panorama of the problems associated with the use of methotrexate in the selected diseases and the guidelines provided by FDA for its safe use. The novel colloidal drug delivery systems of methotrexate, with particular emphasis on advantages offered by liposomal formulation, niosomal gel, hydrogel, albumin conjugates, nanoparticles and nano structured lipid carriers in psoriasis and RA are also reviewed. It seemed that the use of newer colloidal carriers with improved skin permeability by minimizing its systemic availability will be a useful strategy to reduce the toxic effects of the drug in psoriatic patients. In rheumatoid arthritis patients, the development of newer therapeutic strategies using appropriate targeting ligands that specifically deliver the drug to the inflamed joint space will help to overcome its toxic effects by minimizing the systemic exposure.
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Affiliation(s)
- Panonnummal Rajitha
- Amrita School of Pharmacy, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Amrita University, Kochi-682041. India
| | - Raja Biswas
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Amrita University, Kochi- 682041. India
| | - Mangalathillam Sabitha
- Amrita School of Pharmacy, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Amrita University, Kochi-682041. India
| | - R Jayakumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham, Amrita University, Kochi- 682041. India
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