218 results on '"Anwar AA"'
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2. The Effects of Planting Range and Weed Management on Growth and Yield of Rice (Oryza sativa L.) Using Modified SRI (The System of Rice Intensification)
- Author
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Arman Efendi, AE, Aswaldi Anwar, AA, Reni Mayerni, RM, Arman Efendi, AE, Aswaldi Anwar, AA, and Reni Mayerni, RM
- Abstract
Using modified SRI (The System Rice of Intensification) was aimed at determining the optimum planting range and frequency of weeds management that could increase rice productivity. The research was consisted of two factors, planting range and frequency of weeds management. The trials were arranged in factorial using Randomized Block Design (5x4) and three replications. The first factor was five levels of planting range, 20 x 20 cm; 20 x 25 cm; 25 x 25 cm; 25 x 30 cm; and 30 x 30 cm. While the second factor was four levels of weeds management (manually) frequency, once (30 days after planting (DAP); twice (20; 40 DAP); 3 times (20; 30; 40 DAP); and 4 times (10; 20; 30; 40 DAP). Parameters measured were the maximum number of tillers, crops growth rate, net assimilation rate, number of productive tillers, the weight of 1000 seeds, seeds weight per clump, and seeds weight per hectare. The result showed that planting range 20 cm x 25 cm and three times frequency of weeding per planting season was the best interaction with the productivity 9.005 t ha-1. Rice cultivation technique by giving the height of water surface 10 cm under the soil surface, a distance of furrows 2 m, the dosage of compost 10 ton/ha, planting range 20 x 25 cm , and frequency of weeding three times per planting season could increase rice yield as much as 50.08 %.
3. Daftar Nilai Mata Kuliah Metodologi Penelitian Pascasarjana (S2)
- Author
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Nazres Akhir, NA, Zulfadly Syarif, ZS, Aswaldi Anwar, AA, Reni Mayerni, RM, Nazres Akhir, NA, Zulfadly Syarif, ZS, Aswaldi Anwar, AA, and Reni Mayerni, RM
4. Effects of Ditch Distance in Rice Fields on the Growth and Production of Rice (Oryza sativa L.)
- Author
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Arman Efendi, AE, Aswaldi Anwar, AA, Reni Mayerni, RM, Arman Efendi, AE, Aswaldi Anwar, AA, and Reni Mayerni, RM
- Abstract
Background and Objective: The System of Rice Intensification (SRI) is one of the techniques of planting rice that can increase rice productivity. However, in field application, there is still some questions as to which technique is the best for soil water conditions. By providing precise soil water conditions in ditch distances, it is expected that rice productivity could be increased and the use of water could be decreased. The aim of this study was to determine the effects of ditch distance on the growth and productivity of rice using SRI. Materials and Methdos: The rice variety used was Batang Piaman. This study was conducted using a Randomized Block Design (RBD) with five treatments of ditch distance, i.e., 1, 2, 3, 4 and 5 m and each treatment was given three replications. Data were analysed with the F-test (p<0.05). Results: Ditch distance significantly affected the maximum number of tillers, plant growth rate, net assimilation rate, number of productive tillers and seed weight per clump, but the number of seeds per panicle and the weight of 1000 seeds were not significantly affected. The best ditch distance for optimum growth and production of rice was 2 m. Using a planting range of 25×25 cm, there were 160,000 rice clumps that produced 8.288 t of dried seeds per hectare. This yield was higher than the described yield of the same variety of 6 t haG1. Conclusion: The optimal ditch distance in planting rice using the SRI method was 2 m, resulting in an increase in rice yield of 38.13%
5. Daftar Hadir dan Realisasi Perkualiahan Metodelogi Penelitian Pascasarjana Agronomi
- Author
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Reni Mayerni, RM, Aswaldi Anwar, AA, Zulfadly Syarif, ZS, Nazres Akhir, NA, Reni Mayerni, RM, Aswaldi Anwar, AA, Zulfadly Syarif, ZS, and Nazres Akhir, NA
6. Daftar Nilai Mata Kuliah Metodologi Penelitian Pascasarjana (S2)
- Author
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Nazres Akhir, NA, Zulfadly Syarif, ZS, Aswaldi Anwar, AA, Reni Mayerni, RM, Nazres Akhir, NA, Zulfadly Syarif, ZS, Aswaldi Anwar, AA, and Reni Mayerni, RM
7. The Effects of Planting Range and Weed Management on Growth and Yield of Rice (Oryza sativa L.) Using Modified SRI (The System of Rice Intensification)
- Author
-
Arman Efendi, AE, Aswaldi Anwar, AA, Reni Mayerni, RM, Arman Efendi, AE, Aswaldi Anwar, AA, and Reni Mayerni, RM
- Abstract
Using modified SRI (The System Rice of Intensification) was aimed at determining the optimum planting range and frequency of weeds management that could increase rice productivity. The research was consisted of two factors, planting range and frequency of weeds management. The trials were arranged in factorial using Randomized Block Design (5x4) and three replications. The first factor was five levels of planting range, 20 x 20 cm; 20 x 25 cm; 25 x 25 cm; 25 x 30 cm; and 30 x 30 cm. While the second factor was four levels of weeds management (manually) frequency, once (30 days after planting (DAP); twice (20; 40 DAP); 3 times (20; 30; 40 DAP); and 4 times (10; 20; 30; 40 DAP). Parameters measured were the maximum number of tillers, crops growth rate, net assimilation rate, number of productive tillers, the weight of 1000 seeds, seeds weight per clump, and seeds weight per hectare. The result showed that planting range 20 cm x 25 cm and three times frequency of weeding per planting season was the best interaction with the productivity 9.005 t ha-1. Rice cultivation technique by giving the height of water surface 10 cm under the soil surface, a distance of furrows 2 m, the dosage of compost 10 ton/ha, planting range 20 x 25 cm , and frequency of weeding three times per planting season could increase rice yield as much as 50.08 %.
8. Effects of Ditch Distance in Rice Fields on the Growth and Production of Rice (Oryza sativa L.)
- Author
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Arman Efendi, AE, Aswaldi Anwar, AA, Reni Mayerni, RM, Arman Efendi, AE, Aswaldi Anwar, AA, and Reni Mayerni, RM
- Abstract
Background and Objective: The System of Rice Intensification (SRI) is one of the techniques of planting rice that can increase rice productivity. However, in field application, there is still some questions as to which technique is the best for soil water conditions. By providing precise soil water conditions in ditch distances, it is expected that rice productivity could be increased and the use of water could be decreased. The aim of this study was to determine the effects of ditch distance on the growth and productivity of rice using SRI. Materials and Methdos: The rice variety used was Batang Piaman. This study was conducted using a Randomized Block Design (RBD) with five treatments of ditch distance, i.e., 1, 2, 3, 4 and 5 m and each treatment was given three replications. Data were analysed with the F-test (p<0.05). Results: Ditch distance significantly affected the maximum number of tillers, plant growth rate, net assimilation rate, number of productive tillers and seed weight per clump, but the number of seeds per panicle and the weight of 1000 seeds were not significantly affected. The best ditch distance for optimum growth and production of rice was 2 m. Using a planting range of 25×25 cm, there were 160,000 rice clumps that produced 8.288 t of dried seeds per hectare. This yield was higher than the described yield of the same variety of 6 t haG1. Conclusion: The optimal ditch distance in planting rice using the SRI method was 2 m, resulting in an increase in rice yield of 38.13%
9. Daftar Hadir dan Realisasi Perkualiahan Metodelogi Penelitian Pascasarjana Agronomi
- Author
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Reni Mayerni, RM, Aswaldi Anwar, AA, Zulfadly Syarif, ZS, Nazres Akhir, NA, Reni Mayerni, RM, Aswaldi Anwar, AA, Zulfadly Syarif, ZS, and Nazres Akhir, NA
10. The Effects of Planting Range and Weed Management on Growth and Yield of Rice (Oryza sativa L.) Using Modified SRI (The System of Rice Intensification)
- Author
-
Arman Efendi, AE, Aswaldi Anwar, AA, Reni Mayerni, RM, Arman Efendi, AE, Aswaldi Anwar, AA, and Reni Mayerni, RM
- Abstract
Using modified SRI (The System Rice of Intensification) was aimed at determining the optimum planting range and frequency of weeds management that could increase rice productivity. The research was consisted of two factors, planting range and frequency of weeds management. The trials were arranged in factorial using Randomized Block Design (5x4) and three replications. The first factor was five levels of planting range, 20 x 20 cm; 20 x 25 cm; 25 x 25 cm; 25 x 30 cm; and 30 x 30 cm. While the second factor was four levels of weeds management (manually) frequency, once (30 days after planting (DAP); twice (20; 40 DAP); 3 times (20; 30; 40 DAP); and 4 times (10; 20; 30; 40 DAP). Parameters measured were the maximum number of tillers, crops growth rate, net assimilation rate, number of productive tillers, the weight of 1000 seeds, seeds weight per clump, and seeds weight per hectare. The result showed that planting range 20 cm x 25 cm and three times frequency of weeding per planting season was the best interaction with the productivity 9.005 t ha-1. Rice cultivation technique by giving the height of water surface 10 cm under the soil surface, a distance of furrows 2 m, the dosage of compost 10 ton/ha, planting range 20 x 25 cm , and frequency of weeding three times per planting season could increase rice yield as much as 50.08 %.
11. Effects of Ditch Distance in Rice Fields on the Growth and Production of Rice (Oryza sativa L.)
- Author
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Arman Efendi, AE, Aswaldi Anwar, AA, Reni Mayerni, RM, Arman Efendi, AE, Aswaldi Anwar, AA, and Reni Mayerni, RM
- Abstract
Background and Objective: The System of Rice Intensification (SRI) is one of the techniques of planting rice that can increase rice productivity. However, in field application, there is still some questions as to which technique is the best for soil water conditions. By providing precise soil water conditions in ditch distances, it is expected that rice productivity could be increased and the use of water could be decreased. The aim of this study was to determine the effects of ditch distance on the growth and productivity of rice using SRI. Materials and Methdos: The rice variety used was Batang Piaman. This study was conducted using a Randomized Block Design (RBD) with five treatments of ditch distance, i.e., 1, 2, 3, 4 and 5 m and each treatment was given three replications. Data were analysed with the F-test (p<0.05). Results: Ditch distance significantly affected the maximum number of tillers, plant growth rate, net assimilation rate, number of productive tillers and seed weight per clump, but the number of seeds per panicle and the weight of 1000 seeds were not significantly affected. The best ditch distance for optimum growth and production of rice was 2 m. Using a planting range of 25×25 cm, there were 160,000 rice clumps that produced 8.288 t of dried seeds per hectare. This yield was higher than the described yield of the same variety of 6 t haG1. Conclusion: The optimal ditch distance in planting rice using the SRI method was 2 m, resulting in an increase in rice yield of 38.13%
12. Daftar Hadir dan Realisasi Perkualiahan Metodelogi Penelitian Pascasarjana Agronomi
- Author
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Reni Mayerni, RM, Aswaldi Anwar, AA, Zulfadly Syarif, ZS, Nazres Akhir, NA, Reni Mayerni, RM, Aswaldi Anwar, AA, Zulfadly Syarif, ZS, and Nazres Akhir, NA
13. The Effects of Planting Range and Weed Management on Growth and Yield of Rice (Oryza sativa L.) Using Modified SRI (The System of Rice Intensification)
- Author
-
Arman Efendi, AE, Aswaldi Anwar, AA, Reni Mayerni, RM, Arman Efendi, AE, Aswaldi Anwar, AA, and Reni Mayerni, RM
- Abstract
Using modified SRI (The System Rice of Intensification) was aimed at determining the optimum planting range and frequency of weeds management that could increase rice productivity. The research was consisted of two factors, planting range and frequency of weeds management. The trials were arranged in factorial using Randomized Block Design (5x4) and three replications. The first factor was five levels of planting range, 20 x 20 cm; 20 x 25 cm; 25 x 25 cm; 25 x 30 cm; and 30 x 30 cm. While the second factor was four levels of weeds management (manually) frequency, once (30 days after planting (DAP); twice (20; 40 DAP); 3 times (20; 30; 40 DAP); and 4 times (10; 20; 30; 40 DAP). Parameters measured were the maximum number of tillers, crops growth rate, net assimilation rate, number of productive tillers, the weight of 1000 seeds, seeds weight per clump, and seeds weight per hectare. The result showed that planting range 20 cm x 25 cm and three times frequency of weeding per planting season was the best interaction with the productivity 9.005 t ha-1. Rice cultivation technique by giving the height of water surface 10 cm under the soil surface, a distance of furrows 2 m, the dosage of compost 10 ton/ha, planting range 20 x 25 cm , and frequency of weeding three times per planting season could increase rice yield as much as 50.08 %.
14. Effects of Ditch Distance in Rice Fields on the Growth and Production of Rice (Oryza sativa L.)
- Author
-
Arman Efendi, AE, Aswaldi Anwar, AA, Reni Mayerni, RM, Arman Efendi, AE, Aswaldi Anwar, AA, and Reni Mayerni, RM
- Abstract
Background and Objective: The System of Rice Intensification (SRI) is one of the techniques of planting rice that can increase rice productivity. However, in field application, there is still some questions as to which technique is the best for soil water conditions. By providing precise soil water conditions in ditch distances, it is expected that rice productivity could be increased and the use of water could be decreased. The aim of this study was to determine the effects of ditch distance on the growth and productivity of rice using SRI. Materials and Methdos: The rice variety used was Batang Piaman. This study was conducted using a Randomized Block Design (RBD) with five treatments of ditch distance, i.e., 1, 2, 3, 4 and 5 m and each treatment was given three replications. Data were analysed with the F-test (p<0.05). Results: Ditch distance significantly affected the maximum number of tillers, plant growth rate, net assimilation rate, number of productive tillers and seed weight per clump, but the number of seeds per panicle and the weight of 1000 seeds were not significantly affected. The best ditch distance for optimum growth and production of rice was 2 m. Using a planting range of 25×25 cm, there were 160,000 rice clumps that produced 8.288 t of dried seeds per hectare. This yield was higher than the described yield of the same variety of 6 t haG1. Conclusion: The optimal ditch distance in planting rice using the SRI method was 2 m, resulting in an increase in rice yield of 38.13%
15. Daftar Hadir dan Realisasi Perkualiahan Metodelogi Penelitian Pascasarjana Agronomi
- Author
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Reni Mayerni, RM, Aswaldi Anwar, AA, Zulfadly Syarif, ZS, Nazres Akhir, NA, Reni Mayerni, RM, Aswaldi Anwar, AA, Zulfadly Syarif, ZS, and Nazres Akhir, NA
16. The Effects of Planting Range and Weed Management on Growth and Yield of Rice (Oryza sativa L.) Using Modified SRI (The System of Rice Intensification)
- Author
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Arman Efendi, AE, Aswaldi Anwar, AA, Reni Mayerni, RM, Arman Efendi, AE, Aswaldi Anwar, AA, and Reni Mayerni, RM
- Abstract
Using modified SRI (The System Rice of Intensification) was aimed at determining the optimum planting range and frequency of weeds management that could increase rice productivity. The research was consisted of two factors, planting range and frequency of weeds management. The trials were arranged in factorial using Randomized Block Design (5x4) and three replications. The first factor was five levels of planting range, 20 x 20 cm; 20 x 25 cm; 25 x 25 cm; 25 x 30 cm; and 30 x 30 cm. While the second factor was four levels of weeds management (manually) frequency, once (30 days after planting (DAP); twice (20; 40 DAP); 3 times (20; 30; 40 DAP); and 4 times (10; 20; 30; 40 DAP). Parameters measured were the maximum number of tillers, crops growth rate, net assimilation rate, number of productive tillers, the weight of 1000 seeds, seeds weight per clump, and seeds weight per hectare. The result showed that planting range 20 cm x 25 cm and three times frequency of weeding per planting season was the best interaction with the productivity 9.005 t ha-1. Rice cultivation technique by giving the height of water surface 10 cm under the soil surface, a distance of furrows 2 m, the dosage of compost 10 ton/ha, planting range 20 x 25 cm , and frequency of weeding three times per planting season could increase rice yield as much as 50.08 %.
17. The Effects of Planting Range and Weed Management on Growth and Yield of Rice (Oryza sativa L.) Using Modified SRI (The System of Rice Intensification)
- Author
-
Arman Efendi, AE, Aswaldi Anwar, AA, Reni Mayerni, RM, Arman Efendi, AE, Aswaldi Anwar, AA, and Reni Mayerni, RM
- Abstract
Using modified SRI (The System Rice of Intensification) was aimed at determining the optimum planting range and frequency of weeds management that could increase rice productivity. The research was consisted of two factors, planting range and frequency of weeds management. The trials were arranged in factorial using Randomized Block Design (5x4) and three replications. The first factor was five levels of planting range, 20 x 20 cm; 20 x 25 cm; 25 x 25 cm; 25 x 30 cm; and 30 x 30 cm. While the second factor was four levels of weeds management (manually) frequency, once (30 days after planting (DAP); twice (20; 40 DAP); 3 times (20; 30; 40 DAP); and 4 times (10; 20; 30; 40 DAP). Parameters measured were the maximum number of tillers, crops growth rate, net assimilation rate, number of productive tillers, the weight of 1000 seeds, seeds weight per clump, and seeds weight per hectare. The result showed that planting range 20 cm x 25 cm and three times frequency of weeding per planting season was the best interaction with the productivity 9.005 t ha-1. Rice cultivation technique by giving the height of water surface 10 cm under the soil surface, a distance of furrows 2 m, the dosage of compost 10 ton/ha, planting range 20 x 25 cm , and frequency of weeding three times per planting season could increase rice yield as much as 50.08 %.
18. Daftar Nilai Mata Kuliah Metodologi Penelitian Pascasarjana (S2)
- Author
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Nazres Akhir, NA, Zulfadly Syarif, ZS, Aswaldi Anwar, AA, Reni Mayerni, RM, Nazres Akhir, NA, Zulfadly Syarif, ZS, Aswaldi Anwar, AA, and Reni Mayerni, RM
19. Daftar Nilai Mata Kuliah Metodologi Penelitian Pascasarjana (S2)
- Author
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Nazres Akhir, NA, Zulfadly Syarif, ZS, Aswaldi Anwar, AA, Reni Mayerni, RM, Nazres Akhir, NA, Zulfadly Syarif, ZS, Aswaldi Anwar, AA, and Reni Mayerni, RM
20. Effects of Ditch Distance in Rice Fields on the Growth and Production of Rice (Oryza sativa L.)
- Author
-
Arman Efendi, AE, Aswaldi Anwar, AA, Reni Mayerni, RM, Arman Efendi, AE, Aswaldi Anwar, AA, and Reni Mayerni, RM
- Abstract
Background and Objective: The System of Rice Intensification (SRI) is one of the techniques of planting rice that can increase rice productivity. However, in field application, there is still some questions as to which technique is the best for soil water conditions. By providing precise soil water conditions in ditch distances, it is expected that rice productivity could be increased and the use of water could be decreased. The aim of this study was to determine the effects of ditch distance on the growth and productivity of rice using SRI. Materials and Methdos: The rice variety used was Batang Piaman. This study was conducted using a Randomized Block Design (RBD) with five treatments of ditch distance, i.e., 1, 2, 3, 4 and 5 m and each treatment was given three replications. Data were analysed with the F-test (p<0.05). Results: Ditch distance significantly affected the maximum number of tillers, plant growth rate, net assimilation rate, number of productive tillers and seed weight per clump, but the number of seeds per panicle and the weight of 1000 seeds were not significantly affected. The best ditch distance for optimum growth and production of rice was 2 m. Using a planting range of 25×25 cm, there were 160,000 rice clumps that produced 8.288 t of dried seeds per hectare. This yield was higher than the described yield of the same variety of 6 t haG1. Conclusion: The optimal ditch distance in planting rice using the SRI method was 2 m, resulting in an increase in rice yield of 38.13%
21. Assessing the combined impacts of microplastics and nickel oxide nanomaterials on soybean growth and nitrogen fixation potential.
- Author
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Azeem I, Wang Q, Adeel M, Shakoor N, Zain M, Khan AA, Li Y, Azeem K, Nadeem M, Zhu G, and Yukui R
- Subjects
- Nanostructures toxicity, Nanostructures chemistry, Polystyrenes toxicity, Polystyrenes chemistry, Soil Pollutants toxicity, Plant Roots drug effects, Plant Roots growth & development, Plant Roots metabolism, Root Nodules, Plant drug effects, Root Nodules, Plant growth & development, Root Nodules, Plant microbiology, Root Nodules, Plant metabolism, Plant Growth Regulators pharmacology, Nickel toxicity, Nitrogen Fixation drug effects, Glycine max drug effects, Glycine max growth & development, Glycine max metabolism, Microplastics toxicity
- Abstract
The excessive presence of polystyrene microplastic (PS-MPx) and nickel oxide nanomaterials (NiO-NPs) in agriculture ecosystem have gained serious attention about their effect on the legume root-nodule symbiosis and biological nitrogen fixation (BNF). However, the impact of these contaminants on the root-nodule symbiosis and biological N
2 -fixation have been largely overlooked. The current findings highlighted that NiO-NMs at 50 mg kg-1 improved nodule formation and N2 -fixation potential, leading to enhanced N2 uptake by both roots and shoots, resulting in increased plant growth and development. While single exposure of PS-MPx (500 mg kg-1 ) significantly reduced the photosynthetic pigment (8-14 %), phytohormones (9-25 %), nodules biomass (24 %), N2 -related enzymes (12-17 %) that ultimately affected the N2 -fixation potential. Besides, co-exposure of MPx and NiO at 100 mg kg-1 altered the nodule morphology. Additionally, single and co-exposure of MPx and NiO-NMs at 100 mg kg-1 reduced the relative abundance of Proteobacteria, Gemmatimonadota, Actinobacteria, Firmicutes, and Bacteroidetes is associated with N2 -cycling and N2 -fixation potential. The findings of this study will contribute to understanding the potential risks posed by MPx and NiO-NMs to leguminous crops in the soil environment and provide scientific insights into the soybean N2 -fixation potential., Competing Interests: Declaration of Competing Interest The authors declare that they have no financial or personal relationships that could influence the research work presented in this manuscript. There are no conflicts of interest regarding the publication of this research., (Copyright © 2024 Elsevier B.V. All rights reserved.)- Published
- 2024
- Full Text
- View/download PDF
22. Immediate implant placement in compromised extraction sockets using vestibular socket therapy with acellular dermal matrix versus connective tissue grafts in the esthetic zone: a randomized controlled clinical trial.
- Author
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Ellithy AA, El-Tonsy MM, Ghouraba SF, El-Fahl BN, Elaskary A, and Elfana A
- Subjects
- Humans, Male, Female, Middle Aged, Adult, Treatment Outcome, Tooth Extraction, Maxilla surgery, Tooth Socket surgery, Acellular Dermis, Connective Tissue transplantation, Esthetics, Dental, Immediate Dental Implant Loading methods
- Abstract
Background: Immediate implant placement (IIP) in compromised extraction sockets poses significant challenges in maintaining the contour and level of mucosal tissues. This study compares the efficacy of vestibular socket therapy (VST) combined with acellular dermal matrix (ADM) versus connective tissue grafts (CTG) in IIP within the esthetic zone., Methods: Twenty participants requiring extraction in the maxillary esthetic zone were randomized into two groups: ADM and CTG (n = 10 each). Both groups underwent VST with bone grafting and dental implant placement. Clinical outcomes were evaluated at baseline, 6 months, and 12 months, measuring soft-tissue level and thicknesses, and the radiographic facial alveolar bone thicknesses and height., Results: Both groups resulted in statistically significant increase in coronal mucosal thickness, facial bone height and thickness over time. CTG showed statistically significant increase at apical mucosal thickness over time, whereas the ADM group had a significantly higher facial bone height after 12 months. No significant differences were observed between groups in mucosal thickness and level at any time point and both groups achieved 100% implant survival., Conclusion: ADM and CTG are both effective for soft tissue augmentation and hard-tissue maintenance in IIP within compromised extraction sockets after 12 months. CTG may offer advantages in apical mucosal thickness, while ADM was associated with greater bone height., Clinical Relevance: Both ADM and CTG effectively enhance soft tissue and maintain hard-tissue levels, with CTG providing better apical mucosal thickness and ADM resulting in greater facial bone height after 12 months. These insights help clinicians to customize treatment plans based on individual goals and patient needs., Competing Interests: Declarations. Competing interests: Dr. Abdelsalam Elaskary received consultation fees from Biohorizons. All other authors declare no competing interest., (© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
- Published
- 2024
- Full Text
- View/download PDF
23. Comparing effectiveness of mineral trioxide aggregate, bioceramic putty and tannic acid in maintaining pulp vitality after experimental pulpotomy in rats.
- Author
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Alsherif AA, Salah M, and Helal MB
- Subjects
- Animals, Rats, Male, Ceramics pharmacology, Polyphenols, Calcium Compounds pharmacology, Silicates pharmacology, Drug Combinations, Pulpotomy methods, Oxides pharmacology, Aluminum Compounds pharmacology, Tannins pharmacology, Dental Pulp drug effects, Dental Pulp metabolism
- Abstract
This study aimed to evaluate and compare the effectiveness of mineral trioxide aggregate (MTA), bioceramic putty (BP) and tannic acid (TA) for experimental pulpotomy. Our in-vivo experimental study involved sample of 45 rats that were randomly divided into 4 groups: Group 1 (subdivided into negative (1-A) and positive (1-B) subgroups), Group 2 (MTA treated), Group 3 (BP treated) and Group 4 (TA treated). 4 weeks post pulpotomy, specimens were analyzed histologically, immunohistochemically using dentin sialoprotein marker, and histomorphometrically by assessing the thickness of newly formed dentin bridge. Group 1-B showed pulp necrosis without hard tissue formation. Group 2 showed moderate dentin formation while group 3 presented a thick layer of calcific barrier. Group 4 showed dentin bridge formation, however, irregular pulp calcifications and radicular pulp necrosis were seen. The thickness of newly formed dentin bridge showed a significant difference between group 1-B and group 2, 3 &4. Significant difference was found between group 2&3 and group 3&4. Dentin sialoprotein immunohistochemical expression was negative in group 1-B, mild in group 2, strong in group 3 and moderate in group 4. MTA and BP proved to be effective pulpotomy agents with BP being superior. For TA, further studies are required to explain the recorded unfavorable effects in some specimens., Competing Interests: Declarations. Competing interests: The authors declare no competing interests., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
- View/download PDF
24. Green HPLC method for determination of paracetamol and ibuprofen in human plasma: applications to pharmacokinetics.
- Author
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Helmy SA, ElBedaiwy HM, Helmy SA, Alamri RA, Alhusayni RM, Almashhadi IA, Alharbi AS, Alharbi SA, Ahmed-Anwar AA, and Mohamed MA
- Abstract
Using a straightforward, sensitive and precise liquid chromatographic approach, it is now possible to concurrently measure the amounts of ibuprofen (IBU) and paracetamol (PAR) in human plasma. A µ BondapakTM C18 column (300 mm × 3.9 mm, 15-20 μm) demonstrated acceptable separation when utilizing a mobile phase of 10 mM disodium hydrogen orthophosphate solution and acetonitrile at an 80:20, v/v ratio. The elution was isocratic at room temperature and a flow rate of 1.0 milliliters per minute. The UV detector was set to monitor PAR and IS (tinidazole) for 6.5 min at 254 nm, then IBU for the next 3 min at 220 nm. PAR and IBU showed linearity across the 0.05 to 100 µg/ml concentration range. The precision of the measurements ranged from 98.5% to 105% for PAR and from 95.1% to 102.8% for IBU. The average drug recovery rate was 100% for PAR and 98.9% for IBU. This method was effectively utilized to assess samples from an actual population administered PAR and IBU (325/200 mg) for pharmacokinetic research. The technique employs green and white tools to evaluate their environmental sustainability and efficacy. The suggested strategy was implemented utilizing the Six Sigma method.
- Published
- 2024
- Full Text
- View/download PDF
25. Enhancing collagen based nanoemulgel for effective topical delivery of Aceclofenac and Citronellol oil: Formulation, optimization, in-vitro evaluation, and in-vivo osteoarthritis study with a focus on HMGB-1/RAGE/NF-κB pathway, Klotho, and miR-499a.
- Author
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Aldeeb RAE, Ibrahim SSA, Khalil IA, Ragab GM, El-Gazar AA, Taha AA, Hassan DH, Gomaa AA, and Younis MK
- Subjects
- Animals, Humans, Male, Anti-Inflammatory Agents, Non-Steroidal administration & dosage, Anti-Inflammatory Agents, Non-Steroidal chemistry, Anti-Inflammatory Agents, Non-Steroidal pharmacokinetics, Anti-Inflammatory Agents, Non-Steroidal pharmacology, Collagen, Gels, Monoterpenes administration & dosage, Monoterpenes chemistry, Monoterpenes pharmacology, Nanoparticles administration & dosage, Nanoparticles chemistry, NF-kappa B metabolism, Plant Oils chemistry, Plant Oils administration & dosage, Signal Transduction drug effects, Acyclic Monoterpenes administration & dosage, Acyclic Monoterpenes pharmacology, Acyclic Monoterpenes chemistry, Diclofenac administration & dosage, Diclofenac analogs & derivatives, Diclofenac pharmacokinetics, Emulsions, MicroRNAs administration & dosage, Osteoarthritis drug therapy
- Abstract
The majority of conventional osteoarthritis (OA) treatments are based on molecular adjustment of certain signaling pathways associated with osteoarthritis (OA) pathogenesis, however there is a significant need to search for more effective and safe treatments. This study centers around formulating Aceclofenac (ACF) with high bioavailability in combination with Citronellol oil and collagen. The optimal concentrations of Citronellol oil/D-Limonene oil, Tween 80, and Transcutol HP were determined using a pseudoternary phase diagram. The formulated nanoemulsions were studied for thermophysical stability. Thermodynamically stable formula were analyzed for droplet size, zeta potential, and in-vitro permeation. Then, collagen based nanoemulsion were prepared to capitalize on its efficacy in reducing osteoarthritis side effects and characterized for nano size properties. Formulae F10 and F10C were chosen as optimum nanosize formula. Hense, they were prepared and characterized as nanoemulgel dosage form. The nanoemulgel formulae F10NEG1 and F10CNEG1 showed reasonable viscosity and spreadability, with complete drug release after 4 h. These formulae were chosen for further In vivo anti-OA study. Collagen based ACF/citronellol emugel were able to modulate HMGB-1/RAGE/NF-κB pathway, mitigating the production of inflammatory cytokine TNF-α. They were also able to modulate Klotho and miR-499, reducing serum CTXII and COMP, by reducing the cartilage destruction. Histological investigations validated the efficacy, safety, and superiority of Aceclofenac in combination with Citronellol oil and collagen (F10CNEG1) over solo the treated group (F10NEG1 and blank). Hence, the findings of the current work encourage the use of this promising combined formula in treatment of OA patients., (© 2024. The Author(s).)
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- 2024
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26. Corrigendum: Stimulation of hair regrowth in an animal model of androgenic alopecia using 2-deoxy-D-ribose.
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Anjum MA, Zulfiqar S, Chaudhary AA, Rehman IU, Bullock AJ, Yar M, and MacNeil S
- Abstract
[This corrects the article DOI: 10.3389/fphar.2024.1370833.]., (Copyright © 2024 Anjum, Zulfiqar, Chaudhary, Rehman, Bullock, Yar and MacNeil.)
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- 2024
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27. Mortality of patients with sepsis in intensive care units at tertiary hospitals in Jordan: Prospective cohort study.
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Al Omar S, Alshraideh JA, Oweidat I, Al Qadire M, Khalaf A, Abu Sumaqa Y, Al-Mugheed K, Saeed Alabdullah AA, and Farghaly Abdelaliem SM
- Subjects
- Humans, Jordan epidemiology, Male, Female, Middle Aged, Prospective Studies, Aged, Hospital Mortality, Adult, Organ Dysfunction Scores, Intensive Care Units statistics & numerical data, Tertiary Care Centers statistics & numerical data, Sepsis mortality, Shock, Septic mortality
- Abstract
The aim of this study was to describe the 30-day mortality rate of adult patients with sepsis and septic shock in 6 intensive care units of 2 tertiary hospitals in Jordan. A prospective cohort design was used. Patients with sepsis and septic shock admitted to the medical and surgical intensive care units at 2 tertiary hospitals were followed up during the period between February 2022 and June 2022 (N = 148). Data were analyzed using SPSS, version 23. Moreover, descriptive statistics, chi-square, and binary logistic regression were used. Notably, 52.7% of patients with sepsis and septic shock died within 30 days of diagnosis of sepsis and septic shock. Sequential Organ Failure Assessment score and the history of having solid tumors significantly predicted the 30-day mortality rate. Moreover, 43 (29.0%) patients with sepsis and septic shock had positive blood cultures, and 46 (31.0%) had positive urine cultures. Patients with sepsis and septic shock have a notable mortality rate that can be predicted from total Sequential Organ Failure Assessment scores and from the history of having solid tumors. Early assessment and initiation of treatment for sepsis essentially would reduce the likelihood of progression of sepsis to septic shock and would reduce associated patients' mortality., Competing Interests: The authors have no conflicts of interests to disclose., (Copyright © 2024 the Author(s). Published by Wolters Kluwer Health, Inc.)
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- 2024
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28. Intercalating compounds alongside DNA helicase Q1 Plasmodium falciparum 3D7: Assessments of the Pharmacokinetic Properties Prediction of ADME.
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Shakoori A, Alhindi Z, Alobaidy M, Moulana A, Qashgari A, Bagadood RM, Sindi G, Atwah B, and Khan AA
- Abstract
Background Objectives: Quantum chemical & molecular docking practices to deliver new perceptions into how etoposide, novobiocin, nogalamycin and netropsin interact with the biological targets PF3D7_0918600 (Plasmodium falciparum 3D7). Further the pharmacokinetics of a drug candidate which influenced by a variety of factors, including P- glycoprotein (Pgp) transport, PBB (Plasma protein binding), & BBB (Blood-brain barrier) permeation help to forecast the pharmacological characteristics of acetyl-CoA reductase inhibitors (ADMEs) and their metabolites., Methods: At this point, we have elevated four compounds such as etoposide, novobiocin, nogalamycin & netropsin. We have also studied molecular docking against the target protein of the Plasmodium falciparum (PF3D7_0918600) through exhausting the AutoDock Vina platform and AutoDock-Tools (ADT) and pharmacokinetic properties were carried out using the ADMET 2.0., Results: The relative results of molecular docking recommended a greater binding affinity of novobiocin with the selected receptors among other compounds. In-silico ADME screening is a computational approach utilised to forecast the pharmacological characteristics of acetyl- CoA reductase inhibitors (ADMEs) and their metabolites., Interpretation Conclusion: The ADMEs are based on the adsorption-desorption kinetics and pharmacopoeia. Adsorption and distribution analysis are used to assess the potential of the drug candidate. In vitro ADME is exploited to expect the effect of Pgp transport on the drug candidates. ADME has been used to predict CYP1A2 inhibitors and to predict PPB and BBB penetration. This paper summarizes the current knowledge on molecular docking, ADME and identifies potential drug candidates for ADME in vitro and in vivo., (Copyright © 2024 Copyright: © 2024 Journal of Vector Borne Diseases.)
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- 2024
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29. Clinical and epidemiological characteristics of COVID-19 mortality in Saudi Arabia: A retrospective multi-center study.
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Mahmoud MA, Altaluoni AA, Alshargi AA, and Al-Zalabani AH
- Abstract
Background/aim: Coronavirus disease 2019 (COVID-19) increased morbidity and mortality in health institutions worldwide. The present study describes the epidemiological and clinical characteristics of COVID-19 mortality rates. Investigating the factors that affect COVID-19 mortality will be helpful in reducing the burden of morbidity and mortality in healthcare systems., Materials and Methods: The current retrospective observational study was carried out in the Kingdom of Saudi Arabia. COVID-19 cases resulting in death were admitted to hospitals from March 2020 to June 2020. The epidemiological and clinical characteristics of these cases of COVID-19-related death were collected and evaluated., Results: A total of 3260 COVID-19 death cases were included. The mean age of the subjects was 55 years. COVID-19 deaths more frequently in patients aged 50-59 years, 60-69 years, and 40-49 years (26%, 22%, and 17%, respectively). A greater percentage of COVID-19-related deaths (47%) was observed in June than in March (>1%), April (15%), and May (37%). Men accounted for most death cases (76%) compared to women. The COVID-19 mortality rate was higher among non-Saudi (71%) than Saudis (29%). The highest COVID-19 mortality was observed in Tabuk Region, whereas the lowest was observed in Najran. The mean stay duration of COVID-19 cases in the intensive care unit (ICU) was 11 days. The independent t -test indicated a statistically significant increase in the life expectancy (6 days) of ICU cases compared to non-ICU cases., Conclusion: The findings suggest that older age, male gender, and non-Saudi are risk factors that enhance COVID-19 mortality rates, while medical care increases the life expectancy of COVID-19 cases., Competing Interests: There are no conflict of interest., (Copyright: © 2024 Journal of Family Medicine and Primary Care.)
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- 2024
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30. Response surface optimization of a single-step castor oil-based biodiesel production process using a stator-rotor hydrodynamic cavitation reactor.
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Soliman A, Ismail AR, Khater M, Amr SAA, El-Gendy NS, and Ezzat AA
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- Hydrodynamics, Biofuels, Castor Oil chemistry
- Abstract
In order to combat environmental pollution and the depletion of non-renewable fuels, feasible, eco-friendly, and sustainable biodiesel production from non-edible oil crops must be augmented. This study is the first to intensify biodiesel production from castor oil using a self-manufactured cylindrical stator-rotor hydrodynamic cavitation reactor. In order to model and optimize the biodiesel yield, a response surface methodology based on a 1/2 fraction-three-level face center composite design of three levels and five experimental factors was used. The predicted ideal operating parameters were found to be 52.51°C, 1164.8 rpm rotor speed, 27.43 min, 8.4:1 methanol-to-oil molar ratio, and 0.89% KOH concentration. That yielded 95.51% biodiesel with a 99% fatty acid methyl ester content. It recorded a relatively low energy consumption and high cavitation yield of 6.09 × 10
5 J and 12 × 10-3 g/J, respectively. The generated biodiesel and bio-/petro-diesel blends had good fuel qualities that were on par with global norms and commercially available Egyptian petro-diesel. The preliminary cost analysis assured the feasibility of the applied process., (© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)- Published
- 2024
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31. Emergence of artificial intelligence for automating cone-beam computed tomography-derived maxillary sinus imaging tasks. A systematic review.
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Shujaat S, Alfadley A, Morgan N, Jamleh A, Riaz M, Aboalela AA, and Jacobs R
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- Humans, Imaging, Three-Dimensional methods, Artificial Intelligence, Cone-Beam Computed Tomography methods, Maxillary Sinus diagnostic imaging
- Abstract
Cone-beam computed tomography (CBCT) imaging of the maxillary sinus is indispensable for implantologists, offering three-dimensional anatomical visualization, morphological variation detection, and abnormality identification, all critical for diagnostics and treatment planning in digital implant workflows. The following systematic review presented the current evidence pertaining to the use of artificial intelligence (AI) for CBCT-derived maxillary sinus imaging tasks. An electronic search was conducted on PubMed, Web of Science, and Cochrane up until January 2024. Based on the eligibility criteria, 14 articles were included that reported on the use of AI for the automation of CBCT-derived maxillary sinus assessment tasks. The QUADAS-2 (Quality Assessment of Diagnostic Accuracy Studies 2) tool was used to evaluate the risk of bias and applicability concerns. The AI models used were designed to automate tasks such as segmentation, classification, and prediction. Most studies related to automated maxillary sinus segmentation demonstrated high performance. In terms of classification tasks, the highest accuracy was observed for diagnosing sinusitis (99.7%), whereas the lowest accuracy was detected for classifying abnormalities such as fungal balls and chronic rhinosinusitis (83.0%). Regarding implant treatment planning, the classification of automated surgical plans for maxillary sinus floor augmentation based on residual bone height showed high accuracy (97%). Additionally, AI demonstrated high performance in predicting gender and sinus volume. In conclusion, although AI shows promising potential in automating maxillary sinus imaging tasks which could be useful for diagnostic and planning tasks in implantology, there is a need for more diverse datasets to improve the generalizability and clinical relevance of AI models. Future studies are suggested to focus on expanding the datasets, making the AI model's source available, and adhering to standardized AI reporting guidelines., (© 2024 The Author(s). Clinical Implant Dentistry and Related Research published by Wiley Periodicals LLC.)
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- 2024
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32. Virtues of routine suprahyoid release during tracheal resection and anastomosis in patients with post intubation stenosis.
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Elsayed HH, El-Nori AA, Mostafa A, Elsayegh MT, Bassiouny S, Refaat A, Elkahely MA, and Zaki M
- Abstract
Postintubation tracheal stenosis is the most common cause of benign tracheal stenosis. Surgical treatment is more challenging in long-segment stenosis. Suprahyoid release can increase tracheal length resected without anastomotic tension in patients with post-intubation tracheal stenosis. Its effect on swallowing has not been objectively studied and this article aims to explore its virtues and potential complications in a tertiary center for airway surgery. A prospective cohort study was conducted on forty consecutive patients from June 2020 till December 2023. Patients of both genders had tracheal resection anastomosis surgery with routine suprahyoid muscle release for resected tracheal segment of more than 2.5 cm in length aiming to decrease the anastomotic tension. Within two weeks postoperatively, a video naso-laryngoscope was done on all the patients to detect any vocal cord disorders, then they were examined by video fluoroscopy swallowing study VFSS to detect swallowing problems. Follow up was done for 6 months postoperatively. 40 patients were studied. Twenty-five patients (62.5%) were males. 21 patients (52.5%) had a cricotracheal resection. VFSS was performed on 38 patients (two patients excluded for serious morbidity). Six (15.7%) and four (10.5%) patients had residual semisolid and solid food in the vallecula and pyriform fossa respectively during swallowing. Five patients (13%) out of eight patients with abnormal VFSS had aspiration and dysphagia. Video nasolaryngoscopy was done pre- and post-operatively and showed that 7 patients (17.5%) had unilateral vocal cord paralysis, two of them had the same lesion preoperatively. Two patients developed postoperative anastomotic complications. All symptoms of dysphagia improved within 3 weeks of the procedure and improvement persisted for 6 months. Suprahyoid muscle release had a considerable reversible drawback on the process of swallowing. Its routine use in high-risk patients requiring long segment tracheal resections could be considered., (© 2024. The Author(s).)
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- 2024
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33. Comparative Microstructural Evaluation of Wood in Three Dominant Ziziphus Species of Desert Ecosystem (Cholistan), Pakistan.
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Bilal M, Khan ZU, Muhammad S, Hanif U, Hussain K, Tayyab M, Sardar AA, Nawaz H, Jawad Tariq Khan M, Mahrukh, Rasool A, Faisal S, and Zahid M
- Abstract
The present microstructural evaluation was carried out on the woods of three ethnobotanically important local fruit trees, namely, Ziziphus mauritiana Lam., Z. spina-christi (L.) Willd., and Z. nummularia (Burm.f.) Wight and Arn., of family Rhamnaceae from Cholistan Desert of Pakistan. Wood samples were sectioned with sliding sledge microtome to make permanent slides for observing different anatomical parameters under the light microscope. All selected species were observed to have diffuse-porous wood with indistinct growth rings. The vessels were rounded in outline in all the species studied and found mostly solitary or in radial multiples of 2 in Ziziphus mauritiana and Z. nummularia , while in radial multiples of 2 to 5 in Z. spina-christi . The intervessel pits were scalariform to opposite. The rays were uniseriate in Ziziphus mauritiana , while mostly were biseriate in Ziziphus spina-christi . Simple perforation plates and diffuse, confluent, and vasicentric types of axial parenchyma were present in all the selected species. The fibers were thin-walled and nonseptate. One-way ANOVA followed by the Tukey test was conducted to observe different anatomical variations within selected species. Principal component analysis revealed correlations among studied anatomical parameters. The number of rays per mm was comparatively larger in Ziziphus nummularia, showing its greater susceptibility to wood-deteriorating agents than in other selected species. The Runkel ratio indicated the selected species suitable for making paper., Competing Interests: The authors declare that they have no conflicts of interest that influence the work reported in this study., (Copyright © 2024 Muhammad Bilal et al.)
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- 2024
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34. Determinants of Utilization of Antenatal Care Services Among Women of Childbearing Age in Jigawa State, Nigeria.
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Sabo A, Alzoubi MM, Saidu AY, Usman US, Saulawa IM, Al-Mugheed K, Farghaly Abdelaliem SM, and Saeed Alabdullah AA
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- Humans, Female, Nigeria, Adult, Cross-Sectional Studies, Pregnancy, Young Adult, Surveys and Questionnaires, Adolescent, Health Knowledge, Attitudes, Practice, Middle Aged, Socioeconomic Factors, Age Factors, Prenatal Care statistics & numerical data, Patient Acceptance of Health Care statistics & numerical data
- Abstract
Introduction: Antenatal care (ANC) services play a crucial role in safeguarding the health of pregnant women during their reproductive years. This study aimed to evaluate the primary factors influencing the utilization of ANC among women of childbearing age in Isari town, Jigawa State., Methods: We conducted a cross-sectional study among 400 mothers of childbearing age, selecting them using a simple random sampling method. Data were collected using interviewer-administered questionnaires. The statistical analyses performed were descriptive analysis, Pearson's chi-square test, and binary logistic regression analysis., Results: The majority of respondents (92.5%) indicated awareness of ANC, with a significant proportion expressing the necessity of ANC services (85.7%). 57.8% of the respondents indicated attending ANC services at least four times during pregnancy. Furthermore, the number of visits has a significant relationship with age ( P < 0.001), educational level ( P = 0.003), occupation ( P = 0.043), mother's knowledge of pregnancy danger signs ( P = 0.001), and husband's support for ANC ( P < 0.001)., Conclusion: Enhancing ANC utilization will necessitate focusing on women residing in rural areas and those with limited educational attainment., Competing Interests: The authors declare that they do not have any conflicts of interest., (Copyright © 2024 Sabo, Alzoubi, Saidu, Usman, Saulawa, Al-Mugheed, Farghaly Abdelaliem and Saeed Alabdullah.)
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- 2024
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35. Intensive Care Nurses' Performance of Open versus Closed Endotracheal Suction on Critically Ill Patients in Ismailia City.
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Elmansy FM, Elbqry MG, Aly AA, Negm AN, Hafez AI, and Elgazzar SE
- Abstract
Background: Endotracheal Tube Suctioning (ETS), which involves either an open or closed suctioning system, is a crucial practice for mechanically ventilated patients. The nursing practice of airway suctioning is inevitable. This study was designed to compare the intensive care nurses' performance of open versus closed endotracheal suction on critically ill patients in Ismailia City., Materials and Methods: A non-participant structured observational study design was conducted on a convenient sample (N = 63) at intensive care units at a teaching hospital through March and August 2022 to evaluate how nurses practice different procedures in open suctioning compared with the closed suctioning system of Endotracheal Suction (ES) through a 32-item structured checklist. Additionally, authors compared their levels of knowledge in both suctioning systems., Results: Approximately 75% and 65% of the study participants had a satisfactory level of knowledge about the open system compared with the closed system, respectively. The total percentage of patients who achieved a satisfactory level of practice was 72% for the open-system group, compared with 56% for the closed-system group. Overall, there were significant differences between total nurses' performances in the open-system and closed-system systems. Independent sample t-tests revealed a statistically significant correlation between overall nurses' performance in both systems (t = 6.04, p < 0.001)., Conclusions: The findings revealed significant differences in nurses' performance between open and closed-system suctioning. The researchers recommend in-service-led training programs to improve nurses' performance, and other studies with larger sample sizes should be supported., Competing Interests: Nothing to declare., (Copyright: © 2024 Iranian Journal of Nursing and Midwifery Research.)
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- 2024
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36. Determinants of positive rigid bronchoscopy for suspected organic foreign body aspiration in children younger than five years.
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Kamal YA, Elshorbgy AA, and Orieby AA
- Abstract
Purpose: Rigid bronchoscopy is widely used for diagnosis and treatment of foreign body aspiration (FBA) in children, but negative results can be reported, especially with radiolucent organic FBA. This study aimed to evaluate the clinical features and pre-procedure predictors of organic FBA in children under 5 years of age., Methods: Children aged less than 5 years old who underwent rigid bronchoscopy for suspected organic FBA were retrospectively evaluated for demographics, history of aspiration, relevant clinical symptoms and signs, radiological findings, in addition to type and location of foreign body (FB). To determine the predictors of positive FBA, stepwise backward logistic regression was applied., Results: A total of 228 children were included (69.7% boys). The mean age was 1.98 ± 1.07 years. Foreign bodies were found in 202 cases (88.59%). Age ≤ 3 years and history of witnessed choking had the highest sensitivity while diminished breath sounds had the highest specificity for diagnosing FBA. In multivariate analysis, witnessed choking, wheezy chest, diminished breath sounds, and respiratory distress were independently associated with increased risk of FBA., Conclusion: Children under 5 years of age with suspected organic FBA have varied clinical and radiological findings. The history of choking, wheezy chest, diminished air entry, or respiratory distress increases the chance of positive rigid bronchoscopy in this age group., Competing Interests: Conflict of interestThe authors declare that they have no competing interests., (© Indian Association of Cardiovascular-Thoracic Surgeons 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.)
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- 2024
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37. Progress of Artificial Intelligence-Driven Solutions for Automated Segmentation of Dental Pulp Space on Cone-Beam Computed Tomography Images. A Systematic Review.
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Alfadley A, Shujaat S, Jamleh A, Riaz M, Aboalela AA, Ma H, and Orhan K
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- Humans, Dental Pulp diagnostic imaging, Imaging, Three-Dimensional methods, Artificial Intelligence, Cone-Beam Computed Tomography methods
- Abstract
Introduction: Automated segmentation of 3-dimensional pulp space on cone-beam computed tomography images presents a significant opportunity for enhancing diagnosis, treatment planning, and clinical education in endodontics. The aim of this systematic review was to investigate the performance of artificial intelligence-driven automated pulp space segmentation on cone-beam computed tomography images., Methods: A comprehensive electronic search was performed using PubMed, Web of Science, and Cochrane databases, up until February 2024. Two independent reviewers participated in the selection of studies, data extraction, and evaluation of the included studies. Any disagreements were resolved by a third reviewer. The Quality Assessment of Diagnostic Accuracy Studies-2 tool was used to assess the risk of bias., Results: Thirteen studies that met the eligibility criteria were included. Most studies demonstrated high accuracy in their respective segmentation methods, although there was some variation across different structures (pulp chamber, root canal) and tooth types (single-rooted, multirooted). Automated segmentation showed slightly superior performance for segmenting the pulp chamber compared to the root canal and single-rooted teeth compared to multi-rooted ones. Furthermore, the second mesiobuccal (MB2) canalsegmentation also demonstrated high performance. In terms of time efficiency, the minimum time required for segmentation was 13 seconds., Conclusion: Artificial intelligence-driven models demonstrated outstanding performance in pulp space segmentation. Nevertheless, these findings warrant careful interpretation, and their generalizability is limited due to the potential risk and low evidence level arising from inadequately detailed methodologies and inconsistent assessment techniques. In addition, there is room for further improvement, specifically for root canal segmentation and testing of artificial intelligence performance in artifact-induced images., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)
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- 2024
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38. Exotic Animal Practice in Southeast Asia.
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Maguire R, Lim QA, and Bin Ahmad AA
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- Animals, Asia, Southeastern, Pets, Veterinary Medicine, Animals, Exotic
- Abstract
The number of exotic animal practitioners in Southeast Asia (SEA) has increased over the last 30 years to match the increase in ownership of exotic pets. Fortunately, veterinary health care has advanced due to the leaders in the field educating other practitioners and promoting exotic animal practice. Continuing education opportunities are available for exotic medicine in SEA. In Thailand and Singapore, there is a niche of clients with high spending power that has transcended to increased demand for exotic health care. This has led to the establishment of exotic-only specialist hospitals and more access to advanced imaging for exotic pets., Competing Interests: Disclosure The authors have nothing to disclose., (Copyright © 2024 Elsevier Inc. All rights reserved.)
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- 2024
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39. Validation of angiography-derived Murray law-based quantitative flow reserve (μQFR) against pressure-derived instantaneous wave-free ratio for assessing coronary lesions, a single-center study in Egypt.
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Samaan AA, Mostafa A, Wahba SL, Kerlos M, Elamragy AA, Shelbaya K, Elsobky Y, and Hassan M
- Abstract
Background: Instantaneous wave-free ratio (iwFR) is a well-validated method for functional evaluation of intermediate coronary lesions. A recently developed Murray law-based QFR (µQFR) allows wire-free FFR estimation using a high-quality single angiographic projection. We aim to determine the diagnostic accuracy of µQFR as compared to wire-based iwFR for physiological assessment of coronary lesions in a sample of Egyptian patients., Results: Over a one-year period, patients who previously underwent iwFR assessment of an intermediate coronary stenosis (40-90%) were retrospectively included. μQFR analysis was then performed offline using a dedicated artificial intelligence (AI)-aided computation software. All the measurements were performed blinded to iwFR results, and the agreement between iwFR and μQFR values was tested. Forty-nine patients (mean age 57.9 ± 9 years, 72.9% males) were included. Mean value of iwFR and μQFR was 0.90 ± 0.075 and 0.79 ± 0.129, respectively. There was a significant moderate positive linear correlation between μQFR and iwFR (r = 0.47, p = 0.001; 95% CI 0.22-0.68) with moderate-to-substantial agreement between the two methods (Kappa 0.6). In assessing the diagnostic accuracy of μQFR, the receiver operating characteristic (ROC) curve yielded an area under the curve (AUC) of 0.84 (95% CI 0.717-0.962) for predicting functionally significant lesions defined as iwFR < 0.89. The sensitivity and specificity of μQFR < 0.8 for detecting physiological significance of coronary lesions were 89% and 74% with positive and negative predictive values of 70 and 91%, respectively., Conclusion: µQFR has good diagnostic accuracy for predicting functionally significant coronary lesions with moderate correlation and agreement with the gold standard iwFR. Angiography-derived µQFR could be a promising tool for improving the utilization of physiology-guided revascularization., (© 2024. The Author(s).)
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- 2024
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40. Effect of Kinematic Chain Exercise Protocol on Throwing Performance and Shoulder Muscle Strength among University Shot Put Athletes-A Randomized Controlled Trial.
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Kanakapura Chananke Gowda VK, Subramanian SS, Mustafa Gaowgzeh RA, Ahmed Alsenany S, Abdelaliem SMF, Saeed Alabdullah AA, and Afnan AM
- Abstract
Background/Objectives : This study looks at how a kinematic chain exercise regimen that targets the lower, core, and upper body affects university shot put participants' shoulder muscle strength and throwing efficiency. This study fills an apparent research void on shot put training approaches by presenting a comprehensive kinematic chain workout program. It was anticipated that this method would improve performance the most, considering the complex biomechanical requirements of the sport. Methods : Eighty athletes aged (19.87 ± 1.31 years), were assigned into two groups at random: experimental (n = 40) and control (n = 40). While the control group carried on with their usual training, the experimental group participated in an 8-week kinematic chain training program. Pre- and post-training evaluations were carried out to evaluate shot put-throwing ability, shoulder muscle strength, and participant satisfaction with the exercise regimen. Results : The analyses were performed to evaluate the between- and within-group effects in the 10-week intervention period using a two-way ANOVA. This study demonstrated that, when compared to the control group, the athletes in the kinematic chain program had significantly increased throwing distance ( p = 0.01) and shoulder muscle strength ( p = 0.01). Furthermore, there was a significant increase ( p = 0.005) in the athletes' satisfaction levels with the workout program among those in the experimental group. Conclusions : In shot put athletes, this study suggests that a kinematic chain-focused strategy can improve throwing performance and shoulder muscle strength. The findings suggest that incorporating kinematic chain workouts into shot put training programs could be beneficial. However, conclusions should be drawn with caution, and further research is necessary to confirm the effectiveness of kinematic chain-based approaches across various sports and to understand their broader implications in sports science.
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- 2024
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41. Patient safety culture in a tertiary care hospital in Makkah, Saudi Arabia, a cross-sectional study.
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Algethami F, Alasmari AS, Alessa MK, Alhamid AA, Ateeq MK, Alsulami H, Elmorsy SA, and Alruwaili SF
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- Humans, Saudi Arabia, Cross-Sectional Studies, Surveys and Questionnaires, Male, Female, Adult, Attitude of Health Personnel, Middle Aged, Patient Safety, Tertiary Care Centers, Organizational Culture, Safety Management
- Abstract
Background: Patient safety remains an area of global concern, and patient safety culture among healthcare staff is one of its most important determinants. Saudi Arabia is investing much effort in enhancing patient safety. Assessment of patient safety culture is enlightening about the impact of such efforts and invaluable in informing policy makers about future directions. This study aimed to assess patient safety culture in King Abdullah Medical City (KAMC), a tertiary referral center in Makkah, Saudi Arabia., Methods: In this cross-sectional study the Hospital Survey on Patient Safety Culture (HSOPSC) version 2.0 was distributed electronically to all staff of KAMC. The HSOPSC version 2.0 Data Entry and Analysis Tool was used to compare results obtained from KAMC to those obtained from global data. Additional analyses were performed on SPSS to explore the presence of associations between responses and participant characteristics., Results: A total of 350 participants completed the questionnaire, 58.6% of whom were nurses. A comparison of the composite measure of all 10 domains of the HSOPSC showed 62% positive responses at KAMC versus 70% in the global database. This difference was statistically significant, with a chi-square of 10.64 and a p value of 0.001. The percentages of positive responses from the KAMC data exceeded those from the global data in the "Organizational learning and continuous improvement" and the "Communication about error" domains (p = 0.002 and 0.003, respectively)., Conclusion: Although safety culture seems to score lower at KAMC than globally, accelerated improvement in the future is expected based on improvement trends in the literature and the national efforts focused on patient safety., (© 2024. The Author(s).)
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- 2024
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42. Enhanced Antibacterial Activity of Clindamycin Using Molecularly Imprinted Polymer Nanoparticles Loaded with Polyurethane Nanofibrous Scaffolds for the Treatment of Acne Vulgaris.
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Elhabal SF, Abdelmonem R, El Nashar RM, Elrefai MFM, Hamdan AME, Safwat NA, Shoela MS, Hassan FE, Rizk A, Kabil SL, El-Nabarawy NA, Taha AA, and El-Nabarawi M
- Abstract
Acne vulgaris, a prevalent skin condition, arises from an imbalance in skin flora, fostering bacterial overgrowth. Addressing this issue, clindamycin molecularly imprinted polymeric nanoparticles (Clin-MIP) loaded onto polyurethane nanofiber scaffolds were developed for acne treatment. Clin-MIP was synthesized via precipitation polymerization using methacrylic acid (MAA), ethylene glycol dimethacrylate (EGDMA), and azoisobutyronitrile (AIBN) as functional monomers, crosslinkers, and free-radical initiators, respectively. MIP characterization utilized Fourier-transform infrared spectroscopy (FTIR) and transmission electron microscopy (TEM) before being incorporated into polyurethane nanofibers through electrospinning. Further analysis involved FTIR, scanning electron microscopy (SEM), in vitro release studies, and an ex vivo study. Clin-MIP showed strong antibacterial activity against S. aureus , with inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) values of 0.39 and 6.25 μg/mL, respectively. It significantly dropped the bacterial count from 1 × 10
8 to 39 × 101 CFU/mL in vivo and has bactericidal activity within 180 min of incubation in vitro. The pharmacodynamic and histopathology studies revealed a significant decrease in infected animal skin inflammation, epidermal hypertrophy, and congestion upon treatment with Clin-MIP polyurethane nanofiber and reduced pro-inflammatory cytokines (NLRP3, TNF-α, IL-1β, and IL-6) conducive to acne healing. Consequently, the recently created Clin-MIP polyurethane nanofibrous scaffold. This innovative approach offers insight into creating materials with several uses for treating infectious wounds caused by acne.- Published
- 2024
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43. Ventricular remodeling and hemodynamic changes in heart failure patients with non-ischemic dilated cardiomyopathy following dapagliflozin initiation.
- Author
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Hassan A, Samaan K, Asfour A, Baghdady Y, and Samaan AA
- Abstract
Background: In heart failure with reduced ejection fraction (HFrEF), sodium-glucose co-transporter inhibitors (SGLT-2i) have persistently shown cardiovascular benefits through different trials. However, their impact on ventricular remodeling and cardiac hemodynamics has not been sufficiently studied. This study aimed to study how SGLT-2i initiation affects invasive hemodynamics and cardiac magnetic resonance imaging (CMR)-derived ventricular volumes, function, and fraction of the extracellular volume (ECV) in HFrEF patients with non-ischemic dilated cardiomyopathy (NIDCM)., Results: In this study, 23 patients with HFrEF and a mean age of 42, including 82.6% males, all have NIDCM and underwent right heart catheterization and CMR at the initiation of dapagliflozin and at 6-month follow-up. The addition of dapagliflozin resulted in significant reductions in the following invasive hemodynamic parameters compared to baseline: left ventricular end-diastolic pressure (23.4 vs 19.7 mmHg, p = 0.003), mean pulmonary artery pressure (31.3 vs 27.7 mmHg, p = 0.03), and systemic vascular resistance (18 vs 15 Wood units, p = 0.047). Among the studied CMR-derived measurements, only the percentage of extracellular volume fraction was significantly less at follow-up (33.7 vs 32.16%, p = 0.001). Additionally, functional class showed significant improvement with a notable reduction of the NT-proBNP level and a considerable decrease in diuretic dose (median: 40 vs 80 mg, p = 0.01)., Conclusion: Adding dapagliflozin to patients with HFrEF due to NIDCM improved invasively measured hemodynamics and significantly reduced left ventricular extracellular volume fraction measured by CMR, with no significant change in ventricular volumes or ejection fraction., (© 2024. The Author(s).)
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- 2024
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44. Stimulation of hair regrowth in an animal model of androgenic alopecia using 2-deoxy-D-ribose.
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Anjum MA, Zulfiqar S, Chaudhary AA, Rehman IU, Bullock AJ, Yar M, and MacNeil S
- Abstract
Androgenic alopecia (AGA) affects both men and women worldwide. New blood vessel formation can restore blood supply and stimulate the hair regrowth cycle. Recently, our group reported that 2-deoxy-D-ribose (2dDR) is 80%-90% as effective as VEGF in the stimulation of neovascularization in in vitro models and in a chick bioassay. In this study, we aimed to assess the effect of 2dDR on hair growth. We prepared an alginate gel containing 2dDR, polypropylene glycol, and phenoxyethanol. AGA was developed in C57BL6 mice by intraperitoneally injecting testosterone (TE). A dihydrotestosterone (DHT)-treated group was used as a negative control, a minoxidil group was used as a positive control, and we included groups treated with 2dDR gel and a combination of 2dDR and minoxidil. Each treatment was applied for 20 days. Both groups treated with 2dDR gel and minoxidil stimulated the morphogenesis of hair follicles. H&E-stained skin sections of C57BL/6 mice demonstrated an increase in length, diameter, hair follicle density, anagen/telogen ratio, diameter of hair follicles, area of the hair bulb covered in melanin, and an increase in the number of blood vessels. Masson's trichrome staining showed an increase in the area of the hair bulb covered in melanin. The effects of the FDA-approved drug (minoxidil) on hair growth were similar to those of 2dDR (80%-90%). No significant benefit were observed by applying a combination of minoxidil with 2dDR. We conclude that 2dDR gel has potential for the treatment of androgenic alopecia and possibly other alopecia conditions where stimulation of hair regrowth is desirable, such as after chemotherapy. The mechanism of activity of 2dDR remains to be established., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Anjum, Zulfiqar, Chaudhary, Rehman, Bullock, Yar and MacNeil.)
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- 2024
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45. The influence of hospital accreditation on nurses' perceptions of patient safety culture.
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Oweidat IA, Atiyeh H, Alosta M, Al-Mugheed K, Saeed Alabdullah AA, Alzoubi MM, and Farghaly Abdelaliem SM
- Subjects
- Humans, Jordan, Cross-Sectional Studies, Adult, Female, Male, Surveys and Questionnaires, Quality of Health Care, Safety Management, Perception, Accreditation, Patient Safety, Organizational Culture, Attitude of Health Personnel, Nursing Staff, Hospital psychology, Hospitals standards
- Abstract
Objectives: Hospitals' accreditation process is carried out to enhance the quality of hospitals' care and patient safety practices as well. The current study aimed to investigate the influence of hospitals' accreditation on patient safety culture as perceived by Jordanian hospitals among nurses., Methods: A descriptive cross-sectional correlational survey was used for the current study, where the data were obtained from 395 nurses by convenient sampling technique who were working in 3 accredited hospitals with 254 nurses, and 3 non-accredited hospitals with 141 nurses, with a response rate of 89%., Results: The overall patient safety culture was (71.9%). Moreover, the results of the current study revealed that there were no statistically significant differences between the perceptions of nurses in accredited and non-accredited hospitals in terms of perceptions of patient safety culture., Conclusion: The current study will add new knowledge about nurses' perceptions of patient safety culture in both accredited and non-accredited hospitals in Jordan which in turn will provide valid evidence to healthcare stakeholders if the accreditation status positively affects the nurses' perceptions of patient safety culture or not. Continuous evaluation of the accreditation application needs to be carried out to improve healthcare services as well as quality and patient safety., (© 2024. The Author(s).)
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- 2024
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46. Antifungal and antibacterial investigation of quinary Zr Al Fe Co Ni layered double hydroxide and its Al Fe Co Ni quaternary and Fe Co Ni tertiary roots.
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Mahmoud R, Eldin ZE, Khalifa A, Ahmed Anwar AA, GadelHak Y, Othman SI, Allam AA, Essam D, Abo El-Ela FI, Aleem Abdel Aziz SA, and Zaher A
- Abstract
Layered double hydroxides (LDH) are promising 2D nanomaterials being investigated for several engineering and biomedical applications. In this work, quinary Zr Al Fe Co Ni LDH and its Al Fe Co Ni LDH quaternary and Fe Co Ni LDH tertiary roots were prepared and characterized. All samples showed an aggregated, layered morphology with zero surface charge and approximately 300 nm of hydrodynamic size. BET surface area of Al Fe Co Ni LDH showed a remarkable value of 143.25 m
2 g-1 as opposed to 26.2 m2 g-1 and 45.4 m2 g-1 for Fe Co Ni LDH and Zr Al Fe Co Ni LDH, respectively. The antimicrobial activity of the prepared samples was assessed against the many pathogenic bacteria; Bacillus ( B. ) subtilis , Escherichia ( E. ) coli , Haemophilus ( H. ) influenza , Listeria ( L. ) monocytogenes , Staphylococcus ( S. ) aureus , and Streptococcus ( St. ) pneumonia , and six fungal species. Furthermore, anti-biofilm activity, growth curve assay, and effect of UV illumination were examined against various pathogenic microbes. Zr Al Fe Co Ni displayed remarkable antibacterial activity, as indicated by the lowest values of the minimum inhibitory concentrations (MIC) of 4-166.7 μg mL-1 . Results for fungal strains varied in terms of their susceptibilities for the different samples tested. Zn Al Fe Co Ni was able to inhibit the biofilm formation of S. aureus (96.09%), E. coli (98.32%), and Candida ( C. ) albicans (95.93%). This study shown that certain LDH categories, particularly Zr Al Fe Co Ni, may be promising antibacterial agents against variety of pathogenic microorganisms that cause serious infections., Competing Interests: None of the authors have a conflict of interest to disclose., (This journal is © The Royal Society of Chemistry.)- Published
- 2024
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47. A novel methodology for stabilization of silver nanoparticles on cotton, nylon and cotton/nylon fabrics using chitosan and triethyl orthoformate for enhanced and elongated antibacterial performance.
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Mehmood S, Akhtar N, Arshad M, Azhar U, Ullah S, Waris TS, Jabbar F, Hasan A, Iqbal F, Chaudhry AA, Rehman IU, and Yar M
- Subjects
- Microbial Sensitivity Tests, Formates chemistry, Chitosan chemistry, Chitosan pharmacology, Silver chemistry, Silver pharmacology, Metal Nanoparticles chemistry, Anti-Bacterial Agents pharmacology, Anti-Bacterial Agents chemistry, Cotton Fiber, Nylons chemistry, Escherichia coli drug effects, Staphylococcus aureus drug effects, Textiles
- Abstract
In the present study, the commercially available three different fabrics cotton, nylon and cotton/nylon were modified by chitosan and silver nanoparticles using a crosslinker triethyl orthoformate (TEOF). Resulted cotton‑silver (Ag-Cs-Cot), nylon‑silver (Ag-Cs-Nyl) and cotton-nylon silver (Ag-Cs-Cot-Nyl) fabrics showed significant anti-bacterial activity even after 50 washing cycles. Silver nanoparticles were prepared by reducing silver nitrate through sodium borohydride at 0 °C. In FTIR spectra the peak at near 1650 cm
-1 confirmed that TEOF mediated attachment of chitosan with fabrics (due to C=N) and the stretching of secondary amine near the 3375 cm-1 indicated the silver attachment to the amine group of the chitosan. In Scanning Electron Microscope (SEM) images smooth surfaces of fabrics without any damage by modification process were observed. The antibacterial activity was Analyzed by agar diffusion and broth dilution assays against Escherichia coli and Staphylococcus aureus bacterial strains and results showed 90% bacterial inhibition against E. coli and 89% bacterial inhibition against S. aureus. For testing the antibacterial durability, the modified fabrics were washed with non-ionic detergent (10g/l) for 15 minutes under aggressive stirring (100 rpm) at room temperature. The modified fabrics retained antibacterial activity over the 50 washing cycles. Finally, the commercial potential of cotton-silver fabric was evaluated by stitching it with the socks of football players and interestingly results showed that the modified fabric on the socks showed more than 90% bacterial inhibition as compared to the plain fabric after 70 minutes of playing activity., Competing Interests: Declaration of competing interest The authors declare no conflict of interest., (Copyright © 2024 Elsevier B.V. All rights reserved.)- Published
- 2024
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48. The role of complement inhibitors in thrombotic microangiopathy with systemic lupus erythematosus.
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Memon AA, Lentine KL, Brink D, and Said M
- Subjects
- Humans, Complement Inactivating Agents therapeutic use, Lupus Erythematosus, Systemic complications, Lupus Erythematosus, Systemic drug therapy, Thrombotic Microangiopathies drug therapy, Thrombotic Microangiopathies etiology
- Published
- 2024
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49. Synthesis of cerium, zirconium, and copper doped zinc oxide nanoparticles as potential biomaterials for tissue engineering applications.
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Akhtar H, Alhamoudi FH, Marshall J, Ashton T, Darr JA, Rehman IU, Chaudhry AA, and Reilly G
- Abstract
A novel eco-friendly high throughput continuous hydrothermal flow system was used to synthesise phase pure ZnO and doped ZnO in order to explore their properties for tissue engineering applications. Cerium, zirconium, and copper were introduced as dopants during flow synthesis of ZnO nanoparticles, Zirconium doped ZnO were successfully synthesised, however secondary phases of CeO and CuO were detected in X-ray diffraction (XRD). The nanoparticles were characterised using X-ray diffraction, Brunauer-Emmett-Teller (BET), Dynamic Light scattering Measurements, Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR) and RAMAN spectroscopy was used to evaluate physical, chemical, and structural properties. The change in BET surface area was also significant, the surface area increased from 11.35 (ZnO_2) to 26.18 (ZrZnO_5). However. In case of CeZnO_5 and CuZnO_5 was not significant 13.68 (CeZnO_5) and 12.16 (CuZnO_5) respectively. Cell metabolic activity analysis using osteoblast-like cells (MG63) and human embryonic derived mesenchymal stem cells (hES-MP) demonstrated that doped ZnO nanoparticles supported higher cell metabolic activity compared to cells grown in standard media with no nanoparticles added, or pure zinc oxide nanoparticles. The ZrZnO_5 demonstrated the highest cell metabolic activity and non-cytotoxicity over the duration of 28 days as compared to un doped or Ce or Cu incorporated nanoparticles. The current data suggests that Zirconium doping positively enhances the properties of ZnO nanoparticles by increasing the surface area and cell proliferation. Therefore, are potential additives within biomaterials or for tissue engineering applications., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. Professor Gwendolen Reilly and University of Sheffield reports financial support, equipment, supplies were provided by University of Sheffield. Prof. Jawwad Darr provided the access to Green synthesis lab, University college London., (© 2024 Published by Elsevier Ltd.)
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- 2024
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50. Tissue engineered periosteum: Fabrication of a gelatin basedtrilayer composite scaffold with biomimetic properties for enhanced bone healing.
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Tariq S, Shah SA, Hameed F, Mutahir Z, Khalid H, Tufail A, Akhtar H, Chaudhry AA, and Khan AF
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- Periosteum, Biomimetics, Cod Liver Oil, Polyesters chemistry, Tissue Engineering methods, Tissue Scaffolds chemistry, Gelatin chemistry
- Abstract
The periosteum, a vascularized tissue membrane, is essential in bone regeneration following fractures and bone loss due to some other reasons, yet there exist several research gaps concerning its regeneration. These gaps encompass reduced cellular proliferation and bioactivity, potential toxicity, heightened stiffness of scaffold materials, unfavorable porosity, expensive materials and procedures, and suboptimal survivability or inappropriate degradation rates of the implanted materials. This research used an interdisciplinary approach by forming a new material fabricated through electrospinning for the proposed application as a layer-by-layer tissue-engineered periosteum (TEP). TEP comprises poly(ε-caprolactone) (PCL), PCL/gelatin/magnesium-doped zinc oxide (vascular layer), and gelatin/bioactive glass/COD liver oil (osteoconductive layer). These materials were selected for their diverse properties, when integrated into the scaffold formation, successfully mimic the characteristics of native periosteum. Scanning electron microscopy (SEM) was employed to confirm the trilayer structure of the scaffold and determine the average fiber diameter. In-vitro degradation and swelling studies demonstrated a uniform degradation rate that matches the typical recovery time of periosteum. The scaffold exhibited excellent mechanical properties comparable to natural periosteum. Furthermore, the sustained release kinetics of COD liver oil were observed in the trilayer scaffold. Cell culture results indicated that the three-dimensional topography of the scaffold promoted cell growth, proliferation, and attachment, confirming its non-toxicity, biocompatibility, and bioactivity. This study suggests that the fabricated scaffold holds promise as a potential artificial periosteum for treating periostitis and bone fractures., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
- Full Text
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