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Abu Bakar NFAB, Yeo ZL, Hussin F, Madhavan P, Lim V, Jemon K, Prabhakaran P. Synergistic effects of combined cisplatin and Clinacanthus nutans extract on triple negative breast cancer cells. J Taibah Univ Med Sci 2023; 18:1220-1236. [PMID: 37250812 PMCID: PMC10209459 DOI: 10.1016/j.jtumed.2023.04.003] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 02/18/2023] [Accepted: 04/05/2023] [Indexed: 05/31/2023] Open
Abstract
Objective Triple negative breast cancer (TNBC) is the most invasive breast cancer subtype enriched with cancer stem cells. TNBCs do not express estrogen, progesterone, or human epidermal growth factor receptor 2 (HER2) receptors, making them difficult to be targeted by existing chemotherapy treatments. In this study, we attempted to identify the effects of combined cisplatin and Clinacanthus nutans treatment on MDA-MD-231 and MDA-MB-468 breast cancer cells, which represent TNBC subtypes. Methods The phytochemical fingerprint of C. nutans ethanolic leaf extract was evaluated by LC-MS/MS analysis. We investigated the effects of cisplatin (0-15.23 μg/mL), C. nutans (0-50 μg/mL), and a combination of cisplatin (3.05 μg/mL) and C. nutans (0-50 μg/mL), on cell viability, proliferation, apoptosis, invasion, mRNA expression in cancer stem cells (CD49f, KLF4), and differentiation markers (TUBA1A, KRT18) in TNBC cells. In addition, we also studied the interaction between cisplatin and C. nutans. Results Derivatives of fatty acids, carboxylic acid ester, and glycosides, were identified as the major bioactive compounds with potential anticancer properties in C. nutans leaf extract. Reductions in cell viability (0-78%) and proliferation (2-77%), as well as a synergistic anticancer effect, were identified in TNBC cells when treated with a combination of cisplatin and C. nutans. Furthermore, apoptotic induction via increased caspase-3/7 activity (MDA-MB-231: 2.73-fold; MDA-MB-468: 3.53-fold), and a reduction in cell invasion capacity to 36%, were detected in TNBC cells when compared to single cisplatin and C. nutans treatments. At the mRNA level, cisplatin and C. nutans differentially regulated specific genes that are responsible for proliferation and differentiation. Conclusion Our findings demonstrate that the combination of cisplatin and C. nutans represents a potential treatment for TNBC.
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Affiliation(s)
| | - Zhin Leng Yeo
- Department of Biosciences, Faculty of Science, Universiti Teknologi Malaysia, Skudai, Malaysia
| | - Faisal Hussin
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Skudai, Malaysia
| | - Priya Madhavan
- School of Medicine, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, Malaysia
| | - Vuanghao Lim
- Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Penang, Malaysia
| | - Khairunadwa Jemon
- Department of Biosciences, Faculty of Science, Universiti Teknologi Malaysia, Skudai, Malaysia
| | - Praseetha Prabhakaran
- Department of Biosciences, Faculty of Science, Universiti Teknologi Malaysia, Skudai, Malaysia
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Braun C, Manchikalapati A, Prabhakaran P. Lympho-no: a happy ending to a mediastinal mass. Am J Med Sci 2023. [DOI: 10.1016/s0002-9629(23)00376-2] [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: 01/28/2023]
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Affiliation(s)
- C Sorensen
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, USA
- Department of Emergency Medicine, Columbia Irving Medical Center, New York, NY, USA
| | - C Howard
- Cumming School of Medicine, University of Calgary, Calgary, Canada
- Dahdaleh Institute for Global Health Research, York University, Toronto, Canada
| | - P Prabhakaran
- Centre for Environmental Health, Public Health Foundation of India, India
- Centre for Chronic Disease Control, New Delhi, India
| | - G Horton
- School of Medicine and Public Health, University of Newcastle, Australia
| | - R Basu
- Office of Environmental Health Hazard Assessment, Air and Climate Epidemiology Section, Oakland, CA, USA
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Mani MP, Jaganathan SK, Prabhakaran P, Nageswaran G, Krishnasamy NP. Electrospun polyurethane patch in combination with cedarwood and cobalt nitrate for cardiac applications. J Appl Polym Sci 2019. [DOI: 10.1002/app.48226] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Mohan Prasath Mani
- School of Biomedical Engineering and Health Sciences, Faculty of EngineeringUniversiti Teknologi Malaysia Skudai 81310 Malaysia
| | - Saravana Kumar Jaganathan
- Department for Management of Science and Technology DevelopmentTon Duc Thang University Ho Chi Minh City Vietnam
- Faculty of Applied SciencesTon Duc Thang University Ho Chi Minh City Vietnam
- IJNUTM Cardiovascular Engineering center, School of Biomedical Engineering and Health Sciences, Faculty of EngineeringUniversiti Teknologi Malaysia Skudai 81310 Malaysia
| | - Praseetha Prabhakaran
- Department of Biosciences, Faculty of ScienceUniversiti Teknologi Malaysia Skudai 81310 Johor Malaysia
| | - Gomathi Nageswaran
- Department of ChemistryIndian Institute of Space Science and Technology Trivandrum 695547 Kerala India
| | - Navaneetha Pandiyaraj Krishnasamy
- Surface Engineering Laboratory, Department of PhysicsSri Shakthi Institute of Engineering and Technology, L&T By Pass, Chinniyam Palayam (Post) Coimbatore 641062 India
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Jaganathan SK, Mani MP, Prabhakaran P, Supriyanto E, Ismail AF. Production, blood compatibility and cytotoxicity evaluation of a single stage non-woven multicomponent electrospun scaffold mixed with sesame oil, honey and propolis for skin tissue engineering. International Journal of Polymer Analysis and Characterization 2019. [DOI: 10.1080/1023666x.2019.1602919] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Saravana Kumar Jaganathan
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- IJN-UTM Cardiovascular Engineering Centre, School of Biomedical Engineering and Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai 81300, Malaysia
| | - Mohan Prasath Mani
- School of Biomedical Engineering and Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai 81310, Malaysia
| | - Praseetha Prabhakaran
- Department of Biosciences, Faculty of Science, Universiti Teknologi Malaysia, Skudai 81310, Malaysia
| | - Eko Supriyanto
- IJN-UTM Cardiovascular Engineering Centre, School of Biomedical Engineering and Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai 81300, Malaysia
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai 81310, Malaysia
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Prasath Mani M, Jaganathan SK, Prabhakaran P, Nageswaran G, Pandiyaraj Krishnasamy N. Fabrication and characterization of polyurethane patch loaded with palmarosa and cobalt nitrate for cardiac tissue engineering. International Journal of Polymer Analysis and Characterization 2019. [DOI: 10.1080/1023666x.2019.1598665] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Mohan Prasath Mani
- School of Biomedical Engineering and Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai, Malaysia
| | - Saravana Kumar Jaganathan
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- IJNUTM Cardiovascular Engineering Center, School of Biomedical Engineering and Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai, Malaysia
| | - Praseetha Prabhakaran
- Department of Biosciences, Faculty of Science, Universiti Teknologi Malaysia, Skudai, Malaysia
| | - Gomathi Nageswaran
- Department of Chemistry, Indian Institute of Space Science and Technology, Trivandrum, India
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Mani MP, Jaganathan SK, Khudzari AZ, Rathanasamy R, Prabhakaran P. Single-stage electrospun innovative combination of polyurethane and neem oil: Synthesis, characterization and appraisal of blood compatibility. J BIOACT COMPAT POL 2018. [DOI: 10.1177/0883911518792288] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Wound healing is a complex process and it requires proper scaffolding for regeneration. An ideal scaffold should provide optimal environmental conditions in order to assist cellular attachment, proliferation and differentiation. In this work, a new composite based on polyurethane and neem oil was fabricated using one-step electrospinning technique. Fabricated composite patch along with the pristine polyurethane was characterized through scanning electron microscopy, Fourier transform and infrared spectroscopy, thermogravimetric analysis, contact angle measurement and atomic force microscopy. Moreover, the blood compatibility was evaluated using activated partial thromboplastin time, partial thromboplastin time and haemolysis assay. Scanning electron microscopy studies of composites revealed the existence of fibres with a smaller diameter (635 ± 105 nm) compared to the pristine polyurethane (969 ± 217 nm). Fourier transform and infrared analysis revealed the formation of hydrogen bond and peak shifting characteristics confirming the interaction of the neem oil with the polyurethane. Contact angle analysis showed the decrease in contact angle indicating the hydrophilic nature of the fabricated patch compared to pristine polyurethane. Thermal gravimetric analysis depicted the better thermal stability of the novel composite patch due to the existence of neem oil in the pristine polyurethane. The presence of neem oil in polyurethane matrix also resulted in an increase in the surface roughness as observed in the AFM analysis. The novel composite patch showed an ability to reduce the thrombogenicity and promoting the anticoagulant nature signified by blood compatibility assays like activated partial thromboplastin time and partial thromboplastin time. Finally, the haemolytic percentage of the fabricated composite (1%) was found to be reduced compared to control (2.733%) indicating better blood compatibility and safety with the red blood cells. Following the results, the fabricated patches offered enhanced physicochemical and blood compatible nature making it as a promising candidate for wound healing application.
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Affiliation(s)
- Mohan Prasath Mani
- Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
| | - Saravana Kumar Jaganathan
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
- IJN-UTM Cardiovascular Engineering Centre, Department of Clinical Sciences, Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
| | - Ahmad Zahran Khudzari
- IJN-UTM Cardiovascular Engineering Centre, Department of Clinical Sciences, Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
| | | | - Praseetha Prabhakaran
- Department of Biosciences and Health Sciences, Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
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Rameshkumar S, Prabhakaran P, Radhakrishnan K, Rajaram R. Accumulation of Heavy Metals in Some Marine Fisheries Resources Collected from Gulf of Mannar Marine Biosphere Reserve, Southeast Coast of India. ACTA ACUST UNITED AC 2016. [DOI: 10.1007/s12595-016-0205-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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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Abstract
This study evaluated the effect of different flours on the physicochemical, textural, and sensory properties of chicken patties. pH; cooking yield %; water holding capacity (WHC); proximate analysis (cooked); cholesterol content; and storage stability studies of control (Con) and sorghum flour (SF; 10%w/w), finger millet flour (FMF; 10%w/w), and carrageenan (Cgn; 0.5% w/w) treated chicken patties were observed in this study. Texture profile analysis (TPA) parameters like hardness, springiness, cohesiveness, gumminess, chewiness, and sensory parameters were estimated on cooked patties. Highly significant (P < 0.01) difference in fat %, total ash %, and cholesterol content; significant (P < 0.05) difference in moisture % (cooked); and no significant (P > 0.05) difference in pH, WHC, and protein % among control and treatments were noticed. Storage stability was dependent on treatments and storage periods. Significant difference (P < 0.05) was observed in different TPA parameters among the treatments, except for hardness value. Sensory scores showed no significant difference (P > 0.05) between Con and treatments.
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Jones AD, Hayter AKM, Baker CP, Prabhakaran P, Gupta V, Kulkarni B, Smith GD, Ben-Shlomo Y, Krishna KVR, Kumar PU, Kinra S. The co-occurrence of anemia and cardiometabolic disease risk demonstrates sex-specific sociodemographic patterning in an urbanizing rural region of southern India. Eur J Clin Nutr 2015; 70:364-72. [PMID: 26508461 PMCID: PMC4874465 DOI: 10.1038/ejcn.2015.177] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [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: 03/03/2015] [Revised: 09/16/2015] [Accepted: 09/21/2015] [Indexed: 12/11/2022]
Abstract
Background/Objectives To determine the extent and sociodemographic determinants of anemia, overweight, metabolic syndrome (MetS), and the co-occurrence of anemia with cardiometabolic disease risk factors among a cohort of Indian adults. Subject/Methods Cross-sectional survey of adult men (n=3,322) and non-pregnant women (n=2,895) aged 18 y and older from the third wave of the Andhra Pradesh Children and Parents Study that assessed anemia, overweight based on Body Mass Index, and prevalence of MetS based on abdominal obesity, hypertension, and blood lipid and fasting glucose measures. We examined associations of education, wealth and urbanicity with these outcomes and their co-occurrence. Results The prevalence of anemia and overweight was 40% and 29% among women, respectively, and 10% and 25% among men (P<0.001), respectively, while the prevalence of MetS was the same across sexes (15%) (P=0.55). The prevalence of concurrent anemia and overweight (9%), and anemia and MetS (4.5%) was highest among women. Household wealth was positively associated with overweight and MetS across sexes (P<0.05). Independent of household wealth, higher education was positively correlated with MetS among men (OR (95% CI): MetS: 1.4 (0.99, 2.0)) and negatively correlated with MetS among women (MetS: 0.54 (0.29, 0.99)). Similar sex-specific associations were observed for the co-occurrence of anemia with overweight and MetS. Conclusion Women in this region of India may be particularly vulnerable to co-occurring anemia and cardiometabolic risk, and associated adverse health outcomes as the nutrition transition advances in India.
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Affiliation(s)
- A D Jones
- Department of Nutritional Sciences, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - A K M Hayter
- Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | - C P Baker
- Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | | | - V Gupta
- Department of Anthropology, University of Delhi, New Delhi, India
| | - B Kulkarni
- National Institute of Nutrition, Indian Council for Medical Research, Hyderabad, India
| | - G D Smith
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - Y Ben-Shlomo
- School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - K V R Krishna
- National Institute of Nutrition, Indian Council for Medical Research, Hyderabad, India
| | - P U Kumar
- National Institute of Nutrition, Indian Council for Medical Research, Hyderabad, India
| | - S Kinra
- Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
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Diaz F, Kalra Y, Tofil NM, Prabhakaran P. High frequency oscillatory ventilation in children. What do we know so far? Minerva Pediatr 2015; 67:123-140. [PMID: 25658591] [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: 06/04/2023]
Abstract
Respiratory failure in children continues to be a common and important indication for admission to intensive care units around the world. Acute respiratory distress syndrome represents the most severe form of respiratory failure in children and results from a variety of pulmonary and extra-pulmonary conditions. Despite important strides in our understanding and improved ventilator strategies of this very heterogeneous disease process, the mortality continues to be fairly high at 33%. High frequency oscillatory ventilation is an alternative form of mechanical ventilation with some attractive features in respect to attempting to improve gas exchange limiting ventilator induced lung injury. The objective of this review is to discuss the principles and the physiology of high frequency oscillatory ventilation, and its role in the management of children with respiratory failure. The adult literature will briefly be reviewed. The main emphasis on this review will be on the use of the "open lung" strategy in conditions that cause a reduction in functional residual capacity. In addition the "low volume" strategy that is useful in the setting of airleaks, such as pneumothorax and pneumomediastinum, will be briefly discussed.
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Affiliation(s)
- F Diaz
- Critical Care Division, Department of Pediatrics, University of Alabama at Birmingham Birmingham, AL, USA -
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Addo OY, Stein AD, Fall CHD, Gigante DP, Guntupalli AM, Horta BL, Kuzawa CW, Lee N, Norris SA, Osmond C, Prabhakaran P, Richter LM, Sachdev HPS, Martorell R. Parental childhood growth and offspring birthweight: pooled analyses from four birth cohorts in low and middle income countries. Am J Hum Biol 2014; 27:99-105. [PMID: 25186666 PMCID: PMC4310070 DOI: 10.1002/ajhb.22614] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [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: 02/10/2014] [Revised: 07/14/2014] [Accepted: 08/17/2014] [Indexed: 11/25/2022] Open
Abstract
Objective Associations between parental and offspring size at birth are well established, but the relative importance of parental growth at different ages as predictors of offspring birthweight is less certain. Here we model parental birthweight and postnatal conditional growth in specific age periods as predictors of offspring birthweight. Methods We analyzed data from 3,392 adults participating in four prospective birth cohorts and 5,506 of their offspring. Results There was no significant heterogeneity by study site or offspring sex. 1SD increase in maternal birthweight was associated with offspring birthweight increases of 102 g, 1SD in maternal length growth 0–2 year with 46 g, and 1SD in maternal height growth Mid-childhood (MC)-adulthood with 27 g. Maternal relative weight measures were associated with 24 g offspring birth weight increases (2 year- MC) and 49 g for MC-adulthood period but not with earlier relative weight 0–2 year. For fathers, birthweight, and linear/length growth from 0–2 year were associated with increases of 57 and 56 g in offspring birthweight, respectively but not thereafter. Conclusions Maternal and paternal birthweight and growth from birth to 2 year each predict offspring birthweight. Maternal growth from MC-adulthood, relative weight from 2-MC and MC-adulthood also predict offspring birthweight. These findings suggest that shared genes and/or adequate nutrition during early life for both parents may confer benefits to the next generation, and highlight the importance of maternal height and weight prior to conception. The stronger matrilineal than patrilineal relationships with offspring birth weight are consistent with the hypothesis that improving the early growth conditions of young females can improve birth outcomes in the next generation. Am. J. Hum. Biol. 27:99–105, 2015. © 2014 The Authors American Journal of Human Biology Published by Wiley Periodicals, Inc.
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Affiliation(s)
- O Y Addo
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia
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Prabhakaran P, Hassiotou F, Blancafort P, Filgueira L. Cisplatin induces differentiation of breast cancer cells. Front Oncol 2013; 3:134. [PMID: 23761858 PMCID: PMC3669802 DOI: 10.3389/fonc.2013.00134] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [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: 04/04/2013] [Accepted: 05/13/2013] [Indexed: 12/25/2022] Open
Abstract
Breast tumors are heterogeneous including cells with stem cell properties and more differentiated cells. This heterogeneity is reflected into the molecular breast cancer subtypes. Breast cancer stem cells are resistant to chemotherapy, thus recent efforts are focusing on identifying treatments that shift them toward a more differentiated phenotype, making them more susceptible to chemotherapy. We examined whether the drug cisplatin induces differentiation in breast cancer cell lines that represent different breast cancer subtypes. We used three cell lines representing triple-negative breast cancers, BT-549 and MDA-MB-231 (claudin-low), and MDA-MB-468 (basal-like), along with estrogen and progesterone receptor positive MCF-7 cells (luminal). Cisplatin was applied at 2.5, 5, 10, and 20 μM, and cell viability and proliferation were measured using MTS and BrdU assays, respectively. The effect of cisplatin on the cellular hierarchy was examined by flow cytometry, immunofluorescence and qRT-PCR. Cisplatin treatment of 10 and 20 μM reduced cell viability by 36–51% and proliferation capacity by 36–67%. Treatment with cisplatin resulted in 12–67% down-regulation of stem cell markers (CD49f, SSEA4) and 10–130% up-regulation of differentiation markers (CK18, SMA, β-tubulin). At the mRNA level, CD49f was down-regulated whilst β-tubulin was up-regulated in the claudin-low cell lines. SSEA4 protein expression decreased upon cisplatin treatment, but SSEA4 mRNA expression increased indicating a differential regulation of cisplatin at the post-transcriptional level. It is concluded that cisplatin reduces breast cancer cell survival and induces differentiation of stem/progenitor cell subpopulations within breast cancer cell lines. These effects indicate the potential of this drug to target specific chemotherapy-resistant cells within a tumor.
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Affiliation(s)
- Praseetha Prabhakaran
- School of Anatomy, Physiology and Human Biology, The University of Western Australia , Crawley, Perth, WA , Australia ; Faculty of Biosciences and Bioengineering, Universiti Teknologi Malaysia , Skudai, Johor , Malaysia
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Dev S, Prabhakaran P, Filgueira L, Iyer KS, Raston CL. Microfluidic fabrication of cationic curcumin nanoparticles as an anti-cancer agent. Nanoscale 2012; 4:2575-2579. [PMID: 22193941 DOI: 10.1039/c2nr11502f] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Curcumin nanoparticles of less than 50 nm in diameter are accessible using a continuous flow microfluidic rotating tube processor (RTP) under scalable conditions, at room temperature. A mixture of DDAB and Pluronic F127 renders higher stability of the curcumin nanoparticles in physiological pH 7.4 for up to eight hours. The nanoparticles have enhanced cytotoxicity in estrogens receptor negative and positive breast cancer cell lines compared with free curcumin.
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Affiliation(s)
- Selvi Dev
- Centre for Strategic Nano-Fabrication, School of Biomedical, Biomolecular and Chemical Sciences, The University of Western Australia, Crawley, WA 6009, Australia
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Prabhakaran P, Hassiotou F, Filgueira L. Cisplatin induces differentiation of breast cancer cells. FASEB J 2012. [DOI: 10.1096/fasebj.26.1_supplement.914.2] [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: 11/11/2022]
Affiliation(s)
- Praseetha Prabhakaran
- Anatomy and Human BiologyUniversity of Western AustraliaCrawleyAustralia
- Department of Biological SciencesUniversiti Teknologi MalaysiaJohorMalaysia
| | - Foteini Hassiotou
- Anatomy and Human BiologyUniversity of Western AustraliaCrawleyAustralia
| | - Luis Filgueira
- Anatomy and Human BiologyUniversity of Western AustraliaCrawleyAustralia
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Prabhakaran P, Sasser W, Borasino S. Pediatric mechanical ventilation. Minerva Pediatr 2011; 63:411-424. [PMID: 21946452] [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: 05/31/2023]
Abstract
Mechanical ventilation has become a cornerstone of management of critically ill children in the intensive care unit. Indications for mechanical ventilation are numerous and strategies to effectively support patients yet minimize iatrogenic injury are imperative. This review aims to provide a broad overview of pediatric mechanical ventilation. A discussion of core principles of respiratory physiology integral to mechanical ventilation and an overview of commonly used ventilators and ventilator modes will be provided. Focus will then turn to general goals of mechanical ventilation with emphasis on pathophysiology. The latter half of the review will examine general indications for mechanical ventilation and mechanical ventilation in different disease states, including restrictive lung disease, obstructive lung disease, congenital heart disease, and shock. Finally, indications for and methods of weaning from mechanical ventilation will be discussed.
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Affiliation(s)
- P Prabhakaran
- Department of Pediatrics, University of Alabama, Birmingham, AL, USA.
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Peedikayil F, Prabhakaran P. Natal tooth: A Case Report and Review. J Nepal Paedtr Soc 2011. [DOI: 10.3126/jnps.v31i3.4997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Natal teeth are defined as teeth that are present in the mouth at the time of birth. It must be considered that natal and neonatal teeth are conditions of fundamental importance not only for a dental surgeon but also for a paediatrician, since their presence may lead to numerous complications. Hence the purpose of the present paper is to review and discuss its clinical features, complications and management.Key words: Natal teeth; neonatal tooth; congenital teeth; foetal teeth; pre-deciduous teeth; premature teeth; dentitia praecox DOI: http://dx.doi.org/10.3126/jnps.v31i3.4997 J Nep Paedtr Soc 2011;31(3): 251-253
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Jose VJ, Prabhakaran P, Kirubakaran C. Neonatal pulmonary flow pattern--a pulsed Doppler echo study. Indian Heart J 1992; 44:165-6. [PMID: 1427949] [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: 12/27/2022] Open
Abstract
The pulmonary flow pattern was analysed by pulsed Doppler in 77 normal neonates, at < 48 hours (36 subjects), 49 to 96 hours (25 subjects) and 97 to 148 hours (16 subjects). From the flow velocity spectrum, using an built in computer system, the acceleration time and the ejection time were measured, and the ratio was calculated. This ratio was 0.24 +/- 0.08 in the subjects within 48 hours whereas this ratio was 0.53 +/- 0.11 in the subjects above 97 hours; thus the ratio increased with age. We noticed that the ratio obtained from the pulsed Doppler is useful in assessing the pulmonary vascular status, even in neonates.
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Affiliation(s)
- V J Jose
- Department of Cardiology, Christian Medical College Hospital, Vellore
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