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Jeyaraman P, Anbinselvam A, Akintoye SO. Differentially expressed extracellular matrix genes functionally separate ameloblastoma from odontogenic keratocyst. BMC Oral Health 2024; 24:1084. [PMID: 39272104 PMCID: PMC11401384 DOI: 10.1186/s12903-024-04866-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Accepted: 09/05/2024] [Indexed: 09/15/2024] Open
Abstract
BACKGROUND Ameloblastoma and odontogenic keratocyst (OKC) are odontogenic tumors that develop from remnants of odontogenic epithelium. Both display locally invasive growth characteristics and high predilection for recurrence after surgical removal. Most ameloblastomas harbor BRAFV600E mutation while OKCs are associated with PATCH1 gene mutation but distinctive indicators of ameloblastoma growth characteristics relative to OKC are still unclear. The aim of this study was to assess hub genes that underlie ameloblastoma growth characteristics using bioinformatic analysis, ameloblastoma samples and mouse xenografts of human epithelial-derived ameloblastoma cells. METHODS RNA expression profiles were extracted from GSE186489 gene expression dataset acquired from Gene Expression Ominibus (GEO) database. Galaxy and iDEP online analysis tools were used to identify differentially expressed genes that were further characterized by gene ontology (GO) and pathway analysis using ShineyGO. The protein-protein interaction (PPI) network was constructed for significantly upregulated differentially expressed genes using online database STRING. The PPI network visualization was performed using Cytoscape and hub gene identification with cytoHubba. Top ten nodes were selected using maximum neighborhood component, degree and closeness algorithms and analysis of overlap was performed to confirm the hub genes. Epithelial-derived ameloblastoma cells from conventional ameloblastoma were transplanted into immunocompromised mice to recreate ameloblastoma in vivo based on the mouse xenograft model. The top 3 hub genes FN1, COL I and IGF-1 were validated by immunostaining and quantitative analysis of staining intensities to ameloblastoma, OKC samples and mouse ameloblastoma xenografts tissues. RESULTS Seven hub genes were identified among which FN1, COL1A1/COL1A2 and IGF-1 are associated with extracellular matrix organization, collagen binding, cell adhesion and cell surface interaction. These were further validated by positive immunoreactivity within the stroma of ameloblastoma samples but both ameloblastoma xenograft and OKC displayed only FN1 and IGF-1 immunoreactivity while COL 1 was unreactive. The expression levels of both FN1 and IGF-1 were much lower in OKC relative to ameloblastoma. CONCLUSION This study further validates a differentially upregulated expression of matrix proteins FN1, COL I and IGF-1 in ameloblastoma relative to OKC. It suggests that differential stromal architecture and growth characteristics of ameloblastoma relative to OKC could be an interplay of differentially upregulated genes in ameloblastoma.
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Affiliation(s)
- Prasath Jeyaraman
- Department of Oral Medicine, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Arularasan Anbinselvam
- Department of Oral Medicine, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Sunday O Akintoye
- Department of Oral Medicine, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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Salavati H, Pullens P, Debbaut C, Ceelen W. Hydraulic conductivity of human cancer tissue: A hybrid study. Bioeng Transl Med 2024; 9:e10617. [PMID: 38435818 PMCID: PMC10905546 DOI: 10.1002/btm2.10617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 09/22/2023] [Accepted: 10/15/2023] [Indexed: 03/05/2024] Open
Abstract
Background Elevated tumor tissue interstitial fluid pressure (IFP) is an adverse biomechanical biomarker that predicts poor therapy response and an aggressive phenotype. Advances in functional imaging have opened the prospect of measuring IFP non-invasively. Image-based estimation of the IFP requires knowledge of the tissue hydraulic conductivity (K), a measure for the ease of bulk flow through the interstitium. However, data on the magnitude of K in human cancer tissue are not available. Methods We measured the hydraulic conductivity of tumor tissue using modified Ussing chambers in surgical resection specimens. The effect of the tumor microenvironment (TME) on K was investigated by quantifying the collagen content, cell density, and fibroblast density of the tested samples using quantitative immune histochemistry. Also, we developed a computational fluid dynamics (CFD) model to evaluate the role of K on interstitial fluid flow and drug transport in solid tumors. Results The results show that the hydraulic conductivity of human tumor tissues is very limited, ranging from approximately 10-15 to 10-14 m2/Pa∙s. Moreover, K values varied significantly between tumor types and between different samples from the same tumor. A significant inverse correlation was found between collagen fiber density and hydraulic conductivity values. However, no correlation was detected between K and cancer cell or fibroblast densities. The computational model demonstrated the impact of K on the interstitial fluid flow and the drug concentration profile: higher K values led to a lower IFP and deeper drug penetration. Conclusions Human tumor tissue is characterized by a very limited hydraulic conductivity, representing a barrier to effective drug transport. The results of this study can inform the development of realistic computational models, facilitate non-invasive IFP estimation, and contribute to stromal targeting anticancer therapies.
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Affiliation(s)
- Hooman Salavati
- Department of Human Structure and RepairGhent UniversityGhentBelgium
- IBiTech–BioMMedA, Ghent UniversityGhentBelgium
- Cancer Research Institute Ghent (CRIG)GhentBelgium
| | - Pim Pullens
- Department of RadiologyUniversity Hospital GhentGhentBelgium
- Ghent Institute of Functional and Metabolic Imaging (GIFMI)Ghent UniversityGhentBelgium
- IBiTech–Medisip, Ghent UniversityGhentBelgium
| | - Charlotte Debbaut
- IBiTech–BioMMedA, Ghent UniversityGhentBelgium
- Cancer Research Institute Ghent (CRIG)GhentBelgium
| | - Wim Ceelen
- Department of Human Structure and RepairGhent UniversityGhentBelgium
- Cancer Research Institute Ghent (CRIG)GhentBelgium
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Canullo L, Donato A, Savadori P, Radovanovic S, Iacono R, Rakic M. Effect of argon plasma abutment activation on soft tissue healing: RCT with histological assessment. Clin Implant Dent Relat Res 2024; 26:226-236. [PMID: 37853303 DOI: 10.1111/cid.13286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 09/27/2023] [Accepted: 09/30/2023] [Indexed: 10/20/2023]
Abstract
OBJECTIVE To assess the peri-implant soft tissue profiles between argon plasma treatment (PT) and non-treated (NPT) healing abutments by comparing clinical and histological parameters 2 months following abutment placement. MATERIALS AND METHODS Thirty participants were randomly assigned to argon-plasma treatment abutments group (PT) or non-treated abutments (NPT) group. Two months after healing abutment placement, soft peri-implant tissues and abutment were harvested, and histological and clinical parameters including plaque index, bleeding on probing, and keratinized mucosa diameter (KM) were assessed. Specialized stainings (hematoxylin-eosin and picrocirious red) coupled with immunohistochemistry (vimentin, collagen, and CK10) were performed to assess soft tissue inflammation and healing, and the collagen content keratinization. In addition to standard statistical methods, machine learning algorithms were applied for advanced soft tissue profiling between the test and control groups. RESULTS PT group showed lower plaque accumulation and inflammation grade (6.71% vs. 13.25%, respectively; p-value 0.02), and more advanced connective tissue healing and integration compared to NPT (31.77% vs. 23.3%, respectively; p = 0.009). In the control group, more expressed keratinization was found compared to the PT group, showing significantly higher CK10 (>47.5%). No differences in KM were found between the groups. SIGNIFICANCE PT seems to be a promising protocol for guided peri-implant soft tissue morphogenesis reducing plaque accumulation and inflammation, and stimulating collagen and soft tissue but without effects on epithelial tissues and keratinization.
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Affiliation(s)
- Luigi Canullo
- Department of Surgical Sciences (DISC), University of Genoa, Genova, Italy
- Department of Periodontology, University of Bern, Bern, Switzerland
| | | | - Paolo Savadori
- Department of Biomedical, Surgical and Dental Sciences, Università Degli Studi di Milano, Milan, Italy
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Maxillo-Facial Surgery and Dental Unit, Milan, Italy
| | - Sandro Radovanovic
- Faculty of Organizational Sciences, University of Belgrade, Belgrade, Serbia
| | - Roberta Iacono
- Department of Oral and Maxillo-facial Sciences, Sapienza University of Rome, Rome, Italy
| | - Mia Rakic
- Facultad de Odontologia, Etiology and Therapy of Periodontal Diseases (ETEP) Research Group, Universidad Complutense de Madrid, Madrid, Spain
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Mekapogu AR, Xu Z, Pothula S, Perera C, Pang T, Hosen SMZ, Damalanka V, Janetka J, Goldstein D, Pirola R, Wilson J, Apte M. HGF/c-Met pathway inhibition combined with chemotherapy increases cytotoxic T-cell infiltration and inhibits pancreatic tumour growth and metastasis. Cancer Lett 2023:216286. [PMID: 37354984 DOI: 10.1016/j.canlet.2023.216286] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 06/17/2023] [Accepted: 06/20/2023] [Indexed: 06/26/2023]
Abstract
Pancreatic cancer (PC) is a deadly cancer with a high mortality rate. The unique characteristics of PC, including desmoplasia and immunosuppression, have made it difficult to develop effective treatment strategies. Pancreatic stellate cells (PSCs) play a crucial role in the progression of the disease by interacting with cancer cells. One of the key mediators of PSC - cancer cell interactions is the hepatocyte growth factor (HGF)/c-MET pathway. Using an immunocompetent in vivo model of PC as well as in vitro experiments, this study has shown that a combined approach using HGF/c-MET inhibitors to target stromal-tumour interactions and chemotherapy (gemcitabine) to target cancer cells effectively decreases tumour volume, EMT, and stemness, and importantly, eliminates metastasis. Notably, HGF/c-MET inhibition decreases TGF-β secretion by cancer cells, resulting in an increase in cytotoxic T-cell infiltration, thus contributing to cancer cell death in tumours. HGF/c-MET inhibition + chemotherapy was also found to normalise the gut microbiome and improve gut microbial diversity. These findings provide a strong platform for assessment of this triple therapy (HGF/c-MET inhibition + chemotherapy) approach in the clinical setting.
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Affiliation(s)
- Alpha Raj Mekapogu
- Pancreatic Research Group, South West Sydney Clinical Campuses, School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Australia; Ingham Institute for Applied Medical Research, Sydney, Australia
| | - Zhihong Xu
- Pancreatic Research Group, South West Sydney Clinical Campuses, School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Australia; Ingham Institute for Applied Medical Research, Sydney, Australia
| | - Srinivasa Pothula
- Pancreatic Research Group, South West Sydney Clinical Campuses, School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Australia; Ingham Institute for Applied Medical Research, Sydney, Australia; AbCellera, Beaconsfield, New South Wales, United Kingdom
| | - Chamini Perera
- Pancreatic Research Group, South West Sydney Clinical Campuses, School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Australia; Ingham Institute for Applied Medical Research, Sydney, Australia
| | - Tony Pang
- Pancreatic Research Group, South West Sydney Clinical Campuses, School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Australia; Ingham Institute for Applied Medical Research, Sydney, Australia; Surgical Innovations Unit, Westmead Hospital, Sydney, Australia; Westmead Clinical School, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - S M Zahid Hosen
- Pancreatic Research Group, South West Sydney Clinical Campuses, School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Australia; Ingham Institute for Applied Medical Research, Sydney, Australia
| | - Vishnu Damalanka
- Department of Biochemistry and Molecular Biophysics, Washington University, St. Louis, USA
| | - James Janetka
- Department of Biochemistry and Molecular Biophysics, Washington University, St. Louis, USA
| | - David Goldstein
- Pancreatic Research Group, South West Sydney Clinical Campuses, School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Australia
| | - Romano Pirola
- Pancreatic Research Group, South West Sydney Clinical Campuses, School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Australia
| | - Jeremy Wilson
- Pancreatic Research Group, South West Sydney Clinical Campuses, School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Australia; Ingham Institute for Applied Medical Research, Sydney, Australia
| | - Minoti Apte
- Pancreatic Research Group, South West Sydney Clinical Campuses, School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Australia; Ingham Institute for Applied Medical Research, Sydney, Australia.
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Silva Neto PCD, Kunst R, Barbosa JLV, Leindecker APT, Savaris RF. Breast cancer dataset with biomarker Biglycan. Data Brief 2023; 47:108978. [PMID: 36879615 PMCID: PMC9984769 DOI: 10.1016/j.dib.2023.108978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 02/03/2023] [Accepted: 02/07/2023] [Indexed: 02/16/2023] Open
Abstract
This dataset is composed of photomicrographs of the immunohistochemical expression of Biglycan (BGN) in breast tissue, with and without cancer, using only the staining of 3-3' diaminobenzidine (DAB), after processing images with color deconvolution plugin, from Image J. The immunohistochemical DAB expression of BGN was obtained using the monoclonal antibody (M01) (clone 4E1-1G7 - Abnova Corporation, mouse anti-human). Photomicrographs were obtained, under standard conditions, using an optical microscope, with UPlanFI 100x objective (resolution: 2.75 mm), yielding an image size of 4800 × 3600 pixels. After color deconvolution, the dataset with 336 images was divided into 2 two categories: (I) with cancer and (II) without cancer. This dataset allows the training and validation of machine learning models to diagnose, recognize and classify the presence of breast cancer, using the intensity of the colors of the BGN.
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Affiliation(s)
- Pedro Clarindo da Silva Neto
- Universidade do Vale do Rio dos Sinos (UNISINOS), Av. Unisinos, 950 - Cristo Rei, São Leopoldo, 93022-750, RS, Brazil
- Instituto Federal de Educação, Ciência e Tecnologia de Mato Grosso (IFMT), Rua, Zulmira Canavarros, 95 - Centro Cuiabá, 78605-000, MT, Brazil
- Corresponding author. @tuxcuiabano
| | - Rafael Kunst
- Universidade do Vale do Rio dos Sinos (UNISINOS), Av. Unisinos, 950 - Cristo Rei, São Leopoldo, 93022-750, RS, Brazil
| | - Jorge Luis Victoria Barbosa
- Universidade do Vale do Rio dos Sinos (UNISINOS), Av. Unisinos, 950 - Cristo Rei, São Leopoldo, 93022-750, RS, Brazil
| | - Ana Paula Thiesen Leindecker
- Universidade Federal do Rio Grande do Sul / Porgrama de Pós-graduação em Medicina: Ciências Cirúrgicas, Rua Ramiro Barcelos 2300 - Santa Cecilia Porto Alegre, 90035-007, RS, Brazil
| | - Ricardo F. Savaris
- Universidade Federal do Rio Grande do Sul / Porgrama de Pós-graduação em Medicina: Ciências Cirúrgicas, Rua Ramiro Barcelos 2300 - Santa Cecilia Porto Alegre, 90035-007, RS, Brazil
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Bani AP, Putera I, Susanto E, La Distia Nora R. Comparative Assessment of Short-Term Tendon-Scleral Postoperative Inflammation and α-Smooth Muscle Actin Expression following Oral and Topical Diclofenac Administration for Strabismus Surgery in Rabbits. Curr Eye Res 2023; 48:320-327. [PMID: 36510768 DOI: 10.1080/02713683.2022.2153871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
PURPOSE Wound healing and fibrosis modulation are considered pivotal for the long-term outcome of strabismus surgery. Nonsteroidal anti-inflammatory drugs, including diclofenac sodium, are inflammation suppressive drugs that may modulate wound healing, including postoperative inflammation. This study aimed to compare the effect of oral and 0.1% topical diclofenac sodium on short-term inflammation and α-smooth muscle actin (α-SMA) expression at the tendon-scleral attachment site following strabismus surgery in an experimental rabbit model. METHODS Superior rectus recession was performed in 12 eyes of six New Zealand rabbits. Rabbits were divided into three groups: oral diclofenac 2 × 5 mg/kg for three days (group A), 0.1% diclofenac sodium eye drops 3 times/day for three days (group B), and controls (group C). On postoperative day 14, enucleation was performed. Macroscopic adhesion score, microscopic adhesion score, percentage of postoperative inflammation area (Masson's trichrome staining), and α-SMA (immunohistochemistry staining) were assessed. Data analysis was performed using a semi-quantitative and quantitative assessment with ImageJ. All groups were compared with reciprocal staining intensity (RSI) values to measure α-SMA expression. RESULTS All groups showed no difference in macroscopic (p = 0.13) and microscopic adhesion scores (p = 0.28). The percentage of postoperative inflammation area in group B (12.44% (8.63-18.29)) was significantly lower than group A (26.76% (21.38-37.56) p = 0.03) and group C (27.80% (16.42-36.28), p = 0.04). Comparative RSI analysis found that group B had a significantly lower α-SMA expression than group C (174.08 ± 21.78 vs 212.58 ± 12.06, p = 0.04). CONCLUSION The results suggest that compared to oral, the administration of topical diclofenac showed a more significant reduction of short-term postoperative inflammation and α-SMA expression at the tendon-scleral attachment site following strabismus surgery.
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Affiliation(s)
- Anna Puspitasari Bani
- Department of Ophthalmology, Faculty of Medicine Universitas Indonesia, Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Ikhwanuliman Putera
- Department of Ophthalmology, Faculty of Medicine Universitas Indonesia, Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Eka Susanto
- Department of Anatomical Pathology, Faculty of Medicine Universitas Indonesia, Cipto Mangunkusumo Hospital, Jakarta, Indonesia
| | - Rina La Distia Nora
- Department of Ophthalmology, Faculty of Medicine Universitas Indonesia, Cipto Mangunkusumo Hospital, Jakarta, Indonesia
- Department of Immunology, Erasmus Medical Center, Rotterdam, The Netherlands
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Higher hepatic advanced glycation end products and liver damage markers are associated with non-alcoholic steatohepatitis. Nutr Res 2022; 104:71-81. [DOI: 10.1016/j.nutres.2022.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 04/01/2022] [Accepted: 04/15/2022] [Indexed: 11/23/2022]
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Rathore P, Arora I, Rastogi S, Akhtar M, Singh S, Samim M. Collagen Nanoparticle-Mediated Brain Silymarin Delivery: An Approach for Treating Cerebral Ischemia and Reperfusion-Induced Brain Injury. Front Neurosci 2020; 14:538404. [PMID: 33192240 PMCID: PMC7649428 DOI: 10.3389/fnins.2020.538404] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 08/25/2020] [Indexed: 12/12/2022] Open
Abstract
Silymarin is a bioactive constituent isolated from milk thistle (Silybum marinum). Since its discovery, silymarin has been considered a gold standard drug in treating ailments related to the liver, resulting from alcohol consumption and viral hepatitis. This hepatoprotective nature of silymarin arises out of antioxidative and tissue-regenerating properties of silymarin. However, several recent studies have established the neuroprotective link of silymarin, too. Thus, the current investigation was aimed at exploring the neuroprotective effect of nanosilymarin (silymarin encapsulated inside collagen-based polymeric nanoparticulate drug delivery system). The study aimed at bringing out the role of nanoparticles in enhancing the therapeutic effect of silymarin against neuronal injury, originating out of oxidative-stress-related brain damages in focal cerebral ischemia. Collagen-based micellar nanoparticles were prepared and stabilized using 3-ethyl carbodiimide-hydrochloride (EDC-Hcl) and malondialdehyde (MDA) as crosslinkers. Nanoparticles were characterized using dynamic light scattering (DLS), transmission electron microscopy (TEM), and Fourier transform infrared (FT-IR) spectroscopy techniques, and the size of nanoparticles was found to be around 48 nm. Male albino Wistar rats were pretreated with three different doses of nanosilymarin of 10, 100, and 1,000 μg/kg b.wt and a dose of free silymarin of 100 mg/kg b.wt intraperitoneally (i.p.) for 7 days. Focal cerebral ischemia was induced using the middle cerebral artery occlusion (MCAO) model on the eighth day for 1 h followed by 24 h reperfusion. The animals were then evaluated for neurobehavioral, infarct analysis, biochemical, histopathological, and immunohistochemical studies. All the above parameters showed remarkable improvement in nanosilymarin-treated groups in comparison to the silymarin-treated group. Nanoparticle encapsulation of drug enhanced neuroprotection by increasing drug bioavailability and targeting. Thus, the present study concluded with satisfactory results, showing the critical role played by nanoparticles in improving the neuroprotection at very low drug doses.
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Affiliation(s)
- Pankaj Rathore
- Department of Chemistry, School of Chemical & Life Sciences, Jamia Hamdard, New Delhi, India
| | - Indu Arora
- Department of Biomedical Sciences, Shaheed Rajguru College, University of Delhi, New Delhi, India
| | - Shweta Rastogi
- Department of Chemistry, Hansraj College, University of Delhi, New Delhi, India
| | - Mohd Akhtar
- Department of Pharmacology, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi, India
| | - Shruti Singh
- Department of Botany, School of Chemical & Life Sciences, Jamia Hamdard, New Delhi, India
| | - Mohammed Samim
- Department of Chemistry, School of Chemical & Life Sciences, Jamia Hamdard, New Delhi, India
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