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Mohapatra D, Kumar DN, Shreya S, Pandey V, Dubey PK, Agrawal AK, Sahu AN. Quality by design-based development and optimization of fourth-generation ternary solid dispersion of standardized Piper longum extract for melanoma therapy. Drug Deliv Transl Res 2023; 13:3094-3131. [PMID: 37294426 DOI: 10.1007/s13346-023-01375-y] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/25/2023] [Indexed: 06/10/2023]
Abstract
The study aimed to enhance the solubility, dissolution, and oral bioavailability of standardized Piper longum fruits ethanolic extract (PLFEE) via fourth-generation ternary solid dispersion (SD) for melanoma therapy. With the use of solvent evaporation method, the standardized PLFEE was formulated into SD, optimized using Box-Wilson's central composite design (CCD), and evaluated for pharmaceutical performance and in vivo anticancer activity against melanoma (B16F10)-bearing C57BL/6 mice. The optimized SD showed good accelerated stability, high yield, drug content, and content uniformity for bioactive marker piperine (PIP). The X-ray diffraction (XRD), differential scanning calorimetry (DSC), polarized light microscopy (PLM), and selected area electron diffraction (SAED) analysis revealed its amorphous nature. The attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) and high-performance thin layer chromatography (HPTLC) revealed the compatibility of excipients with the PLFEE. The contact angle measurement and in vitro dissolution study revealed excellent wetting of SD and improved dissolution profile as compared to the plain PLFEE. The in vivo oral bioavailability of SD reflected a significant (p < 0.05) improvement in bioavailability (Frel = 188.765%) as compared to plain extract. The in vivo tumor regression study revealed the improved therapeutic activity of SD as compared to plain PLFEE. Further, the SD also improved the anticancer activity of dacarbazine (DTIC) as an adjuvant therapy. The overall result revealed the potential of developed SD for melanoma therapy either alone or as an adjuvant therapy with DTIC.
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Affiliation(s)
- Debadatta Mohapatra
- Phytomedicine Research Laboratory, Department of Pharmaceutical Engineering & Technology, IIT (BHU), Uttar Pradesh, Varanasi, 221005, India
| | - Dulla Naveen Kumar
- Nanomedicine Research Laboratory, Department of Pharmaceutical Engineering & Technology, IIT (BHU), Uttar Pradesh, Varanasi, 221005, India
| | - Singh Shreya
- Phytomedicine Research Laboratory, Department of Pharmaceutical Engineering & Technology, IIT (BHU), Uttar Pradesh, Varanasi, 221005, India
| | - Vivek Pandey
- Centre for Genetics Disorders, Institute of Science (BHU), Uttar Pradesh, Varanasi, 221005, India
| | - Pawan K Dubey
- Centre for Genetics Disorders, Institute of Science (BHU), Uttar Pradesh, Varanasi, 221005, India
| | - Ashish Kumar Agrawal
- Nanomedicine Research Laboratory, Department of Pharmaceutical Engineering & Technology, IIT (BHU), Uttar Pradesh, Varanasi, 221005, India
| | - Alakh N Sahu
- Phytomedicine Research Laboratory, Department of Pharmaceutical Engineering & Technology, IIT (BHU), Uttar Pradesh, Varanasi, 221005, India.
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Shreya S, Annamalai M, Jirge VL, Sethi S. Utility of salivary biomarkers for diagnosis and monitoring the prognosis of nicotine addiction - A systematic review. J Oral Biol Craniofac Res 2023; 13:740-750. [PMID: 38028231 PMCID: PMC10630637 DOI: 10.1016/j.jobcr.2023.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 09/12/2023] [Accepted: 10/08/2023] [Indexed: 12/01/2023] Open
Abstract
Objectives Tobacco and smoke associated with tobacco comprises of a mixture of more than 9500 chemical compounds, most of which have been identified as harmful. Two of the most potent carcinogens found in cigarette smoke are N'-nitrosonornicotine (NNN) and polycyclic aromatic hydrocarbons (PAHs). The most commonly used method to detect and monitor nicotine addiction is via serum cotinine levels. Though considered the gold standard, there is a decline in preventive screening and diagnostic testing due to the fear of pain from invasive testing. Data sources and study selection A structured literature search was performed using the search engines PubMed and Google scholar following the PRISMA guidelines for systematic reviews. The titles and abstracts were retrieved and analysed, followed by full-text relevant data extraction in addition to a risk-of-bias analysis. Data extraction and synthesis A total of 37 studies were included in the systematic review. Salivary cotinine levels were compared between smokers and non-smokers, cigarette smokers and water pipe smokers, water pipe smokers and non-smokers. Lactate dehydrogenase salivary levels were compared between smokers and non-smokers, and salivary thiocyanate were compared between smokers and non-smokers. Conclusions Identifying biomarkers with high performance in terms of sensitivity and specificity will contribute to accelerating future research in this domain.
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Affiliation(s)
- S. Shreya
- A B Shetty Memorial Institute of Dental Sciences, Mangalore, Karnataka, India
| | - Manoj Annamalai
- KAHER’S KLE V.K. Institute of Dental Sciences, Belagavi, Karnataka, 590010, India
| | - Vasanti Lagali Jirge
- KAHER’S KLE V.K. Institute of Dental Sciences, Belagavi, Karnataka, 590010, India
| | - Sneha Sethi
- Adelaide Dental School, University of Adelaide, Adelaide, 5000, Australia
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Shreya S, Jenkins AS, Rezaeiyan Y, Li R, Böhnert T, Benetti L, Ferreira R, Moradi F, Farkhani H. Granular vortex spin-torque nano oscillator for reservoir computing. Sci Rep 2023; 13:16722. [PMID: 37794052 PMCID: PMC10550924 DOI: 10.1038/s41598-023-43923-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 09/30/2023] [Indexed: 10/06/2023] Open
Abstract
In this paper, we investigate the granularity in the free layer of the magnetic tunnel junctions (MTJ) and its potential to function as a reservoir for reservoir computing where grains act as oscillatory neurons while the device is in the vortex state. The input of the reservoir is applied in the form of a magnetic field which can pin the vortex core into different grains of the device in the magnetic vortex state. The oscillation frequency and MTJ resistance vary across different grains in a non-linear fashion making them great candidates to be served as the reservoir's outputs for classification objectives. Hence, we propose an experimentally validated area-efficient single granular vortex spin-torque nano oscillator (GV-STNO) device in which pinning sites work as random reservoirs that can emulate neuronal functions. We harness the nonlinear oscillation frequency and resistance exhibited by the vortex core granular pinning of the GV-STNO reservoir computing system to demonstrate waveform classification.
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Affiliation(s)
- S Shreya
- Electrical and Computer Engineering Department, Aarhus University, 8200, Aarhus, Denmark.
| | - A S Jenkins
- International Iberian Nanotechnology Laboratory (INL), Braga, Portugal
| | - Y Rezaeiyan
- Electrical and Computer Engineering Department, Aarhus University, 8200, Aarhus, Denmark
| | - R Li
- Electrical and Computer Engineering Department, Aarhus University, 8200, Aarhus, Denmark
| | - T Böhnert
- International Iberian Nanotechnology Laboratory (INL), Braga, Portugal
| | - L Benetti
- International Iberian Nanotechnology Laboratory (INL), Braga, Portugal
| | - R Ferreira
- International Iberian Nanotechnology Laboratory (INL), Braga, Portugal
| | - F Moradi
- Electrical and Computer Engineering Department, Aarhus University, 8200, Aarhus, Denmark
| | - H Farkhani
- Electrical and Computer Engineering Department, Aarhus University, 8200, Aarhus, Denmark.
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Mohapatra D, Kumar DN, Shreya S, Panigrahi D, Agrawal AK, Sahu AN. Quality-by-design-based development of ultradeformable nanovesicular transgelosome of standardized Piper longum extract for melanoma. Nanomedicine (Lond) 2023; 18:963-985. [PMID: 37503870 DOI: 10.2217/nnm-2023-0069] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023] Open
Abstract
Background: Melanoma is the most aggressive and deadly form of skin cancer. The stratum corneum of the skin is a major obstacle to dermal and transdermal drug delivery. Ultradeformable nanovesicular transferosome has the capacity for deeper skin penetration and its incorporation into hydrogel forms a transgelosome that has better skin permeability and patient compliance. Method: Here, the quality-by-design-based development and optimization of nanovesicular transgelosome of standardized Piper longum fruit ethanolic extract (PLFEE) for melanoma therapy are reported. Results: Compared with standardized PLFEE-loaded plain gel, the transgelosome displayed optimal pharmaceutical properties and improved ex vivo skin permeability and in vivo tumor regression in B16F10 melanoma-bearing C57BL/6 mice. Conclusion: The results reflect the potential of transgelosome for melanoma therapy.
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Affiliation(s)
- Debadatta Mohapatra
- Phytomedicine Research Laboratory, Department of Pharmaceutical Engineering & Technology, IIT (BHU), Varanasi, 221005, Uttar Pradesh, India
| | - Dulla Naveen Kumar
- Nanomedicine Research Laboratory, Department of Pharmaceutical Engineering & Technology, IIT (BHU), Varanasi, 221005, Uttar Pradesh, India
| | - Singh Shreya
- Phytomedicine Research Laboratory, Department of Pharmaceutical Engineering & Technology, IIT (BHU), Varanasi, 221005, Uttar Pradesh, India
| | - Dhananjay Panigrahi
- Dr. Reddy's Laboratories, Integrated Product Development, Bachupally (V&M), Medchal District, Telangana, 500090, India
| | - Ashish Kumar Agrawal
- Nanomedicine Research Laboratory, Department of Pharmaceutical Engineering & Technology, IIT (BHU), Varanasi, 221005, Uttar Pradesh, India
| | - Alakh N Sahu
- Phytomedicine Research Laboratory, Department of Pharmaceutical Engineering & Technology, IIT (BHU), Varanasi, 221005, Uttar Pradesh, India
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Mohapatra D, Pratap R, Pandey V, Shreya S, Naik GG, Mandal SC, Otimenyin SO, Dubey PK, Parmar AS, Sahu AN. Bioengineered dual fluorescent carbon nano dots from Indian long pepper leaves for multifaceted environmental and health utilities. Environ Sci Pollut Res Int 2023; 30:52182-52208. [PMID: 36826772 DOI: 10.1007/s11356-023-25887-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
In this article, we present the synthesis of Piper longum leaves-derived ethanolic carbon dots (PLECDs) using the most simplistic environmentally friendly solvothermal carbonization method. The PLECDs fluoresced pink color with maximum emission at 670 nm at 397 nm excitation. Additionally, the dried PLECDs dissolved in water showed green fluorescence with higher emission at 452 nm at 370 nm excitation. The UV spectra showed peaks in the UV region (271.25 nm and 320.79 nm) and a noticeable tail in the visible region, signifying the efficient synthesis of nano-sized carbon particles and the Mie scattering effect. Various functional groups (-OH, -N-H, -C-H, -C = C, -C-N, and -C-O) were identified using Fourier transform infrared spectroscopy (FTIR). Its nanocrystalline property was revealed by the sharp peaks in the X-ray diffraction (XRD). High-resolution transmission electron microscopy (HRTEM) photomicrograph displayed a roughly spherical structure with a mean size of 2.835 nm. The energy dispersive X-ray (EDAX) and X-ray photoelectron spectroscopy (XPS) revealed the elemental abundance of C, O, and N. The high-performance thin-layer chromatography (HPTLC) fingerprint of PLECDs showed an altered pattern than its precursor (Piper longum leaves ethanolic extract or PLLEE). The PLECDs sensed Cu2+ selectively with a limit of detection (LOD) and limit of quantification (LOQ) of 0.063 μM and 0.193 μM, respectively. It showed excellent cytotoxicity toward MDA-MB-231 (human breast cancer), SiHa (human cervical carcinoma), and B16F10 (murine melanoma) cell lines with excellent in vitro bioimaging outcomes. It also has free radical scavenging activity. The PLECDs also showed outstanding bacterial biocompatibility, pH-dependent fluorescence stability, photostability, physicochemical stability, and thermal stability.
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Affiliation(s)
- Debadatta Mohapatra
- Phytomedicine Research Laboratory, Department of Pharmaceutical Engineering & Technology, IIT (BHU), Varanasi, 221005, Uttar Pradesh, India
| | - Ravi Pratap
- Department of Physics, IIT (BHU), Varanasi, 221005, Uttar Pradesh, India
| | - Vivek Pandey
- Centre for Genetic Disorders, Institute of Science (BHU), Varanasi, 221005, Uttar Pradesh, India
| | - Singh Shreya
- Phytomedicine Research Laboratory, Department of Pharmaceutical Engineering & Technology, IIT (BHU), Varanasi, 221005, Uttar Pradesh, India
| | - Gaurav Gopal Naik
- Phytomedicine Research Laboratory, Department of Pharmaceutical Engineering & Technology, IIT (BHU), Varanasi, 221005, Uttar Pradesh, India
| | - Subhash C Mandal
- Pharmacognosy & Phytotherapy Research Laboratory, Division of Pharmacognosy, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India
| | - Sunday O Otimenyin
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, University of Jos, Jos, Plateau State, Nigeria
| | - Pawan K Dubey
- Centre for Genetic Disorders, Institute of Science (BHU), Varanasi, 221005, Uttar Pradesh, India
| | - Avanish S Parmar
- Department of Physics, IIT (BHU), Varanasi, 221005, Uttar Pradesh, India
| | - Alakh N Sahu
- Phytomedicine Research Laboratory, Department of Pharmaceutical Engineering & Technology, IIT (BHU), Varanasi, 221005, Uttar Pradesh, India.
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Shreya S, Jain SK, Guru SK, Sahu AN. Anti-cancer potential of Pleurotus mushroom: Detailed insight on the potential bioactive molecules, Invitro-Invivo studies, and formulation. LETT DRUG DES DISCOV 2022. [DOI: 10.2174/1570180819666220518100010] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
Early mushrooms were categorized under functional food/ nutritional food. However, later on, an increasing number of scientific studies strongly support their role in disease prevention and suppression or remission of a diseased state. Mycotherapy of cancer, a new promising field, can deal with anti-cancerogenic agents derived from mushrooms. Rich in nutritive value, undemanding cultivation conditions, and with an army of health-promoting bioactive molecules, collectively makes Pleurotus mushroom ideal for a researcher to investigate the anticancer potential. The present review is a literature survey on electronic search by two database search engines: Science direct and Pub med on anticancer potential of Pleurotus species until 2021. This data profiling will fast track information regarding the in vitro and in vivo anticancer activity of different types of Pleurotus species, along with identifying the bioactivemolecules responsible for anticancer potential with their underlying mechanism of action. Resultant findings from the electronic search revealed that till 2021, nearly 13 species of Pleurotus mushroom have been studied as anticancer potential. The biomarkers responsible for activity are mostly higher molecular weight molecules, comprising polysaccharides, polypeptides, proteins, lectins, and enzymes. The lower molecular weight molecules like terpenoids, sterols, and phenolic compounds are less explored and untapped. The main underlying mechanism for the anticancer activity of Pleurotus mushrooms is the induction of the mitochondria intrinsic pathway. For anticancer, Pleurotus mushrooms are widely formulated as metal nanoparticles. Altogether, with this detailed insight may impart the researcher a path to be addressed, thus driving mass attention to identify novel,effective, and safer anticancer potential biomarker.
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Affiliation(s)
- Singh Shreya
- Department of Pharmaceutical Engineering &Technology, IIT (BHU), Varanasi-221005, India
| | - Shreyans K Jain
- Department of Pharmaceutical Engineering &Technology, IIT (BHU), Varanasi-221005, India
| | - Santosh Kumar Guru
- Department of Biological Sciences, Department of Pharmaceuticals, NIPER-Hyderabad, Telangana-500037, India
| | - Alakh N Sahu
- Department of Pharmaceutical Engineering &Technology, IIT (BHU), Varanasi-221005, India
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Zhang Z, Flores P, Friskop A, Liu Z, Igathinathane C, Han X, Kim HJ, Jahan N, Mathew J, Shreya S. Enhancing Wheat Disease Diagnosis in a Greenhouse Using Image Deep Features and Parallel Feature Fusion. Front Plant Sci 2022; 13:834447. [PMID: 35371139 PMCID: PMC8965652 DOI: 10.3389/fpls.2022.834447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 01/27/2022] [Indexed: 06/14/2023]
Abstract
Since the assessment of wheat diseases (e.g., leaf rust and tan spot) via visual observation is subjective and inefficient, this study focused on developing an automatic, objective, and efficient diagnosis approach. For each plant, color, and color-infrared (CIR) images were collected in a paired mode. An automatic approach based on the image processing technique was developed to crop the paired images to have the same region, after which a developed semiautomatic webtool was used to expedite the dataset creation. The webtool generated the dataset from either image and automatically built the corresponding dataset from the other image. Each image was manually categorized into one of the three groups: control (disease-free), disease light, and disease severity. After the image segmentation, handcrafted features (HFs) were extracted from each format of images, and disease diagnosis results demonstrated that the parallel feature fusion had higher accuracy over features from either type of image. Performance of deep features (DFs) extracted through different deep learning (DL) models (e.g., AlexNet, VGG16, ResNet101, GoogLeNet, and Xception) on wheat disease detection was compared, and those extracted by ResNet101 resulted in the highest accuracy, perhaps because deep layers extracted finer features. In addition, parallel deep feature fusion generated a higher accuracy over DFs from a single-source image. DFs outperformed HFs in wheat disease detection, and the DFs coupled with parallel feature fusion resulted in diagnosis accuracies of 75, 84, and 71% for leaf rust, tan spot, and leaf rust + tan spot, respectively. The methodology developed directly for greenhouse applications, to be used by plant pathologists, breeders, and other users, can be extended to field applications with future tests on field data and model fine-tuning.
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Affiliation(s)
- Zhao Zhang
- Key Laboratory of Modern Precision Agriculture System Integration Research, Ministry of Education, China Agricultural University, Beijing, China
- Key Lab of Agricultural Information Acquisition Technology, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing, China
| | - Paulo Flores
- Department of Agricultural and Biosystems Engineering, North Dakota State University, Fargo, ND, United States
| | - Andrew Friskop
- Department of Plant Sciences, North Dakota State University, Fargo, ND, United States
| | - Zhaohui Liu
- Department of Plant Sciences, North Dakota State University, Fargo, ND, United States
| | - C. Igathinathane
- Department of Agricultural and Biosystems Engineering, North Dakota State University, Fargo, ND, United States
| | - X. Han
- Department of Biosystems Engineering, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon, South Korea
- Interdisciplinary Program in Smart Agriculture, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon, South Korea
| | - H. J. Kim
- Interdisciplinary Program in Smart Agriculture, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon, South Korea
- Department of Biosystems and Biomaterials Engineering, College of Agriculture and Life Sciences, Seoul National University, Seoul, South Korea
| | - N. Jahan
- Department of Agricultural and Biosystems Engineering, North Dakota State University, Fargo, ND, United States
| | - J. Mathew
- Department of Agricultural and Biosystems Engineering, North Dakota State University, Fargo, ND, United States
| | - S. Shreya
- Department of Electrical and Computer Engineering, North Dakota State University, Fargo, ND, United States
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Abstract
BACKGROUND Sports injuries are a growing concern which requires immediate attention. Dental injuries are the most common type of orofacial injuries sustained during sports activities. OBJECTIVES This study aims to review the prevalence of sports-related facial trauma in India, to identify the most common types of oro-facial injury incurred due to sports, and to assess the level of awareness regarding preventive measures used in sports. METHODOLOGY The present review was performed in accordance with preferred reporting items for systematic reviews and meta-analyses guidelines. All articles published from 2005 to 2019 on sports-related facial trauma were analyzed. PubMed, Google Scholar, and Cochrane reviews databases were searched using primary keywords. RESULTS A total of 24 articles published in the period of 2005-2019 were included. The prevalence of sports-related facial trauma was found to be the highest in the study conducted by Selva et al., in 2018, at a rate of 75%, whereas it was found to be minimal in the study conducted by Bali et al. in 2013. While the awareness of mouthguards was reported the highest in a study conducted by Ramagoni et al., in 2007. CONCLUSION This study shows that there is a definite need to improve the awareness as well as the usage of protective gear, from the level of schooling, where children are introduced to sports. Prevention of sports-related facial trauma is essential to avoid the serious and lifelong consequences which could be the aftermath of such injuries.
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Affiliation(s)
- S Shreya
- Department of Oral and Maxillofacial Surgery, KLE Academy of Higher Education and Research's, KLE Academy of higher Education and Research, V K Institute of Dental Sciences, Belagavi, Karnataka, India
| | - Shridhar Damodar Baliga
- Department of Oral and Maxillofacial Surgery, KLE Academy of Higher Education and Research's, KLE Academy of higher Education and Research, V K Institute of Dental Sciences, Belagavi, Karnataka, India
| | - Sulakshana Shridhar Baliga
- Department of Community Medicine, KLE Academy of Higher Education and Research's, Jawaharlal Nehru Medical College, Nehru Nagar, Belagavi, Karnataka, India
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Shreya S, Nayakar RP. Knowledge, Attitude, and Practices Regarding Maxillofacial Defects and their Prosthetic Rehabilitation among Dental Undergraduate Students in Belagavi District- A Cross-sectional Study. J Clin Diagn Res 2020. [DOI: 10.7860/jcdr/2020/46236.14243] [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: 11/24/2022]
Abstract
Introduction: Maxillofacial defects are facial disfigurements resulting from congenital abnormalities, surgical resection of tumours, trauma, or a combination of these. The resulting deformity often leads to a difficult path of recovery with lifelong consequences, causing both physical disability and mental distress. Prosthetic rehabilitation is not only a solution to cover the physical deficit, but also a way to improve function as well as the quality of life for such patients. However, the knowledge amongst undergraduate dental health professionals about the same has been at sparse. Aim: To evaluate the knowledge, attitude, and practices regarding maxillofacial defects and their prosthetic rehabilitation amongst dental undergraduate students. Materials and Methods: A cross-sectional survey was conducted between January 2020 and June 2020, amidst the third year, fourth year undergraduate students, and interns of Belagavi city, Karnataka, India. The data was collected using a 16-item custom designed proforma, comprising of questions evaluating student’s basic knowledge about the diagnosis, treatment procedures, and treatment planning of maxillofacial defects and their prosthetic rehabilitation. Statistical analysis was done using Chi-square test in each group, using SPSS version 22 p-value <0.05 to be considered significant. Results: A total of 286 participants answered the questionnaire, of which 117 (40.9%) were interns, 116 (40.6%) were third year students, and 53 (18.5%) were fourth year students. 279 (97.6%) participants had an understanding regarding maxillofacial defects. Of those who had witnessed cases, only 18.2% had observed more than three cases (p-value <0.001). Out of respondents with treatment understanding, 184 (64.3%) answered that it required a multidisciplinary approach (p-value <0.001). 197 (68.9%) of the respondents felt that silicone was the most commonly used material (p<0.003). 165 (57.7%) answered that waxes were the most commonly used impression material (p-value <0.001). Out of the respondents awared about treatment modalities, 120 (42%) respondents majority answered that CAD-CAM would contribute the most to maxillofacial rehabilitation. Conclusion: Comprehensive understanding and clinical application of prosthodontic rehabilitation of maxillofacial defects among undergraduate students was found to be lacking. This awareness should be initiated at an early stage of the clinical training for undergraduate training programme, as it will help to understand the basic aspects involved in the prosthodontic rehabilitation of maxillofacial defects.
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Shreya S, Malavika D, Priya VR, Selvamurugan N. Regulation of Histone Deacetylases by MicroRNAs in Bone. Curr Protein Pept Sci 2019; 20:356-367. [PMID: 30381072 DOI: 10.2174/1389203720666181031143129] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 10/15/2018] [Accepted: 10/19/2018] [Indexed: 02/08/2023]
Abstract
Formation of new bone by osteoblasts is mediated via the activation of signaling pathways, such as TGF-β, BMP, and Wnt. A number of transcription factors participate in the signaling cascades that are tightly regulated by other regulatory factors. Histone deacetylases (HDACs) are one such class of regulatory factors that play an essential role in influencing chromatin architecture and regulate the expression of the genes that play a role in osteoblast differentiation by the mechanism of deacetylation. Four classes of HDACs have been identified namely, class I, class II A, class II B, class III and class IV. MicroRNAs (miRNAs) are small fragments of non-coding RNAs typically 19-25 nucleotides long that target mRNAs to upregulate or downregulate gene expression at a post-transcriptional level. A number of miRNAs that target HDACs in bone have been recently reported. Hence, in this review, we elaborate on the various miRNAs that target the different classes of HDACs and impact of the same on osteogenesis.
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Affiliation(s)
- S Shreya
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - D Malavika
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - V Raj Priya
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
| | - N Selvamurugan
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India
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Arumugam B, Vishal M, Shreya S, Malavika D, Rajpriya V, He Z, Partridge NC, Selvamurugan N. Parathyroid hormone-stimulation of Runx2 during osteoblast differentiation via the regulation of lnc-SUPT3H-1:16 (RUNX2-AS1:32) and miR-6797-5p. Biochimie 2018; 158:43-52. [PMID: 30562548 DOI: 10.1016/j.biochi.2018.12.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [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: 10/04/2018] [Accepted: 12/13/2018] [Indexed: 12/21/2022]
Abstract
Parathyroid hormone (PTH) acts as a regulator of calcium homeostasis and bone remodeling. Runx2, an essential transcription factor in bone, is required for osteoblast differentiation. Noncoding RNAs such as long noncoding RNAs (lncRNAs) and microRNAs (miRNAs) play crucial roles in regulating gene expression in osteoblasts. In this study, we investigated the effects of PTH on osteoblast differentiation via Runx2, lncRNA, and miRNA expression in human bone marrow stromal cells (hBMSCs) and human osteoblastic cells (MG63). PTH-treatment of hBMSCs for 24 h, 7 days, and 14 days stimulated Runx2 mRNA expression. Using bioinformatics tools, we identified 17 lncRNAs originating from human Runx2 gene. Among these, lnc-SUPT3H-1:16 (RUNX2-AS1:32) expression was highly up-regulated by the 7 d PTH-treatment in hBMSCs. We also identified miR-6797-5p as the putative target of lnc-SUPT3H-1:16 and Runx2 using bioinformatics tools. PTH-treatment increased the expression of miR-6797-5p in hBMSCs, and overexpression of miR-6797-5p decreased osteoblast differentiation in MG63 cells, suggesting a role for lnc-SUPT3H-1:16 as sponge molecule. A luciferase gene reporter assay identified direct targeting of miR-6797-5p with lnc-SUPT3H-1:16 and 3'UTR Runx2 in MG63 cells. Thus, PTH stimulated the expression of lnc-SUPT3H-1:16, miR-6797-5p and Runx2, and due to the sponging mechanism of lnc- SUPT3H-1:16 towards miR-6797-5p, Runx2 was protected, resulting in the promotion of osteoblast differentiation.
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Affiliation(s)
- B Arumugam
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - M Vishal
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - S Shreya
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - D Malavika
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - V Rajpriya
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Z He
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York University, NY, USA
| | - N C Partridge
- Department of Basic Science and Craniofacial Biology, New York University College of Dentistry, New York University, NY, USA
| | - N Selvamurugan
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India.
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