Nuwan Indika Millagaha Gedara

Dr. Nuwan Indika Millagaha Gedara

University of Colombo
orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 September 2021 in Cancers
Verified
Journal Article
Open access
PDF file
Nuwan Indika Millagaha GedaraNuwan Indika Millagaha Gedara
Nuwan Indika Millagaha Gedara
XXXuan Xu
Xuan Xu
RDRobert K. Delong
Robert K. Delong
Santosh AryalSantosh Aryal
Santosh Aryal
MJMajid Jaberi-Douraki
Majid Jaberi-Douraki
This study presents a new way to investigate comprehensive trends in cancer nanotechnology research in different countries, institutions, and journals providing critical insights to prevention, diagnosis, and therapy. This paper applied the qualitative method of bibliometric analysis on cancer nanotechnology using the PubMed database during the years 2000–2021. Inspired by hybrid medical models and content-based and bibliometric features for machine learning models, our results show cancer nanotechnology studies have expanded exponentially since 2010. The highest production of articles in cancer nanotechnology is mainly from US institutions, with several countries, notably the USA, China, the UK, India, and Iran as concentrated focal points as centers of cancer nanotechnology research, especially in the last five years. The analysis shows the greatest overlap between nanotechnology and DNA, RNA, iron oxide or mesoporous silica, breast cancer, and cancer diagnosis and cancer treatment. Moreover, more than 50% of the information related to the keywords, authors, institutions, journals, and countries are considerably investigated in the form of publications from the top 100 journals. This study has the potential to provide past and current lines of research that can unmask comprehensive trends in cancer nanotechnology, key research topics, or the most productive countries and authors in the field.

21 July 2021 in Frontiers in Veterinary Science
Verified
Journal Article
Open access
MJMajid Jaberi-Douraki
Majid Jaberi-Douraki
SDSoudabeh Taghian Dinani
Soudabeh Taghian Dinani
Nuwan Indika Millagaha GedaraNuwan Indika Millagaha Gedara
Nuwan Indika Millagaha Gedara
XXXuan Xu
Xuan Xu
EREmily Richards
Emily Richards
LTLisa A. Tell
Lisa A. Tell
Extra-label drug use in food animal medicine is authorized by the US Animal Medicinal Drug Use Clarification Act (AMDUCA), and estimated withdrawal intervals are based on published scientific pharmacokinetic data. Occasionally there is a paucity of scientific data on which to base a withdrawal interval or a large number of animals being treated, driving the need to test for drug residues. Rapid assay commercial farm-side tests are essential for monitoring drug residues in animal products to protect human health. Active ingredients, sensitivity, matrices, and species that have been evaluated for commercial rapid assay tests are typically reported on manufacturers' websites or in PDF documents that are available to consumers but may require a special access request. Additionally, this information is not always correlated with FDA-approved tolerances. Furthermore, parameter changes for these tests can be very challenging to regularly identify, especially those listed on websites or in documents that are not publicly available. Therefore, artificial intelligence plays a critical role in efficiently extracting the data and ensure current information. Extracting tables from PDF and HTML documents has been investigated both by academia and commercial tool builders. Research in text mining of such documents has become a widespread yet challenging arena in implementing natural language programming. However, techniques of extracting tables are still in their infancy and being investigated and improved by researchers. In this study, we developed and evaluated a data-mining method for automatically extracting rapid assay data from electronic documents. Our automatic electronic data extraction method includes a software package module, a developed pattern recognition tool, and a data mining engine. Assay details were provided by several commercial entities that produce these rapid drug residue assay tests. During this study, we developed a real-time conversion system and method for reflowing contents in these files for accessibility practice and research data mining. Embedded information was extracted using an AI technology for text extraction and text mining to convert to structured formats. These data were then made available to veterinarians and producers via an online interface, allowing interactive searching and also presenting the commercial test assay parameters in reference to FDA-approved tolerances.

30 April 2023 in Pharmaceutics
Verified
Journal Article
Open access
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RRRemya Ampadi Ramachandran
Remya Ampadi Ramachandran
LTLisa Tell
Lisa Tell
SRSidharth Rai
Sidharth Rai
Nuwan Indika Millagaha GedaraNuwan Indika Millagaha Gedara
Nuwan Indika Millagaha Gedara
XXXuan Xu
Xuan Xu
MJMajid Jaberi-Douraki
Majid Jaberi-Douraki
Data curation has significant research implications irrespective of application areas. As most curated studies rely on databases for data extraction, the availability of data resources is extremely important. Taking a perspective from pharmacology, extracted data contribute to improved drug treatment outcomes and well-being but with some challenges. Considering available pharmacology literature, it is necessary to review articles and other scientific documents carefully. A typical method of accessing articles on journal websites is through long-established searches. In addition to being labor-intensive, this conventional approach often leads to incomplete-content downloads. This paper presents a new methodology with user-friendly models to accept search keywords according to the investigators’ research fields for metadata and full-text articles. To accomplish this, scientifically published records on the pharmacokinetics of drugs were extracted from several sources using our navigating tool called the Web Crawler for Pharmacokinetics (WCPK). The results of metadata extraction provided 74,867 publications for four drug classes. Full-text extractions performed with WCPK revealed that the system is highly competent, extracting over 97% of records. This model helps establish keyword-based article repositories, contributing to comprehensive databases for article curation projects. This paper also explains the procedures adopted to build the proposed customizable-live WCPK, from system design and development to deployment phases.

25 June 2021 in Scientific Reports
Verified
Journal Article
Open access
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MJMajid Jaberi-Douraki
Majid Jaberi-Douraki
EMEmma Meyer
Emma Meyer
JRJim Riviere
Jim Riviere
Nuwan Indika Millagaha GedaraNuwan Indika Millagaha Gedara
Nuwan Indika Millagaha Gedara
JKJessica Kawakami
Jessica Kawakami
XXXuan Xu
Xuan Xu
Hypertension is a recognized comorbidity for COVID-19. The association of antihypertensive medications with outcomes in patients with hypertension is not fully described. However, angiotensin-converting enzyme 2 (ACE2), responsible for host entry of the novel coronavirus (SARS-CoV-2) leading to COVID-19, is postulated to be upregulated in patients taking angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin II receptor blockers (ARBs). Here, we evaluated the occurrence of pulmonary adverse drug events (ADEs) in patients with hypertension receiving ACEIs/ARBs to determine if disparities exist between individual drugs within the respective classes using data from the FDA Spontaneous Reporting Systems. For this purpose, we proposed the proportional reporting ratio to provide a statistical summary for the commonality of an ADE for a specific drug as compared to the entire database for drugs in the same or other classes. In addition, a statistical procedure, multiple logistic regression analysis, was employed to correct hidden confounders when causative covariates are underreported or untrusted to correct analyses of drug-ADE combinations. To date, analyses have been focused on drug classes rather than individual drugs which may have different ADE profiles depending on the underlying diseases present. A retrospective analysis of thirteen pulmonary ADEs showed significant differences associated with quinapril and trandolapril, compared to other ACEIs and ARBs. Specifically, quinapril and trandolapril were found to have a statistically significantly higher incidence of pulmonary ADEs compared with other ACEIs as well as ARBs (P < 0.0001) for group comparison (i.e., ACEIs vs. ARBs vs. quinapril vs. trandolapril) and (P ≤ 0.0007) for pairwise comparison (i.e., ACEIs vs. quinapril, ACEIs vs. trandolapril, ARBs vs. quinapril, or ARBs vs. trandolapril). This study suggests that specific members of the ACEI antihypertensive class (quinapril and trandolapril) have a significantly higher cluster of pulmonary ADEs.

1 October 2021 in Pharmaceuticals
Verified
Journal Article
Open access
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HHHanah Huber
Hanah Huber
MJMajid Jaberi-Douraki
Majid Jaberi-Douraki
SDSarah DeVader
Sarah DeVader
CACesar Aparicio-Lopez
Cesar Aparicio-Lopez
JNJuliet Nava-Chavez
Juliet Nava-Chavez
RDRobert K. Delong
Robert K. Delong
The emergence of SARS-CoV-2 variants is cause for concern, because these may become resistant to current vaccines and antiviral drugs in development. Current drugs target viral proteins, resulting in a critical need for RNA-targeted nanomedicines. To address this, a comparative analysis of SARS-CoV-2 variants was performed. Several highly conserved sites were identified, of which the most noteworthy is a partial homopurine palindrome site with >99% conservation within the coding region. This sequence was compared among recently emerged, highly infectious SARS-CoV-2 variants. Conservation of the site was maintained among these emerging variants, further contributing to its potential as a regulatory target site for SARS-CoV-2. RNAfold was used to predict the structures of the highly conserved sites, with some resulting structures being common among coronaviridae. An RNA-level regulatory map of the conserved regions of SARS-CoV-2 was produced based on the predicted structures, with each representing potential target sites for antisense oligonucleotides, triplex-forming oligomers, and aptamers. Additionally, homopurine/homopyrimidine sequences within the viral genome were identified. These sequences also demonstrate appropriate target sites for antisense oligonucleotides and triplex-forming oligonucleotides. An experimental strategy to investigate these is summarized along with potential nanoparticle types for delivery, and the advantages and disadvantages of each are discussed.

31 December 2021 in Colombo Business Journal
Verified
Journal Article
Open access
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Nuwan Indika Millagaha GedaraNuwan Indika Millagaha Gedara
Nuwan Indika Millagaha Gedara
Married men earn more than single men, which is a significant finding in labour and family economics. A considerable amount of research literature discusses this estimated wage effect for married men in the United States. This study finds a meaningful impact on wage after controlling for the publication bias with heterogeneity, considering a meta-analysis of 120 estimates. Marriage premium accounts for 6.8% compared to unmarried men with the evidence of publication bias after applying descriptive statistics, funnel graph, simple meta-regression analysis (MRA), and multiple MRAs. Also, this analysis identifies omitted variable bias as another important aspect for explaining this widespread empirical literature.