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  • 1
    Online-Ressource
    Online-Ressource
    JCDR Research and Publications ; 2023
    In:  JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH ( 2023)
    In: JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH, JCDR Research and Publications, ( 2023)
    Kurzfassung: Introduction: Diabetic Retinopathy (DR) is one of the common microvascular complications of diabetes. In patients with DR, the most frequent cause of vision loss is Diabetic Macular oedema (DME). In the present era, anti-Vascular Endothelial Growth Factor (anti-VEGF) agents are the mainstay of treatment for managing DME. A majority of patients show a good response to multiple doses of these agents administered by a pro re nata regimen at regularly spaced fixed intervals. However, the tendency of DME to become chronic and resistant to these agents, as well as the burden of repeated injections, necessitates considering alternative treatment options with similar or better efficacy. As steroids can address these drawbacks of anti-VEGF treatment, the present study compared the efficacy of anti-VEGF agents with dexamethasone implant in the treatment of naïve DME. Aim: To compare the effectiveness of dexamethasone implant with anti-VEGF agents in the treatment of naïve DME. Materials and Methods: A prospective cohort study was conducted in the Department of Ophthalmology at Kalinga Institute of Medical Sciences and Pradyumna Bal Memorial Hospital, Bhubaneswar, Odisha, India from September 2020 to September 2022. A total of 100 eyes with DME, newly diagnosed patients aged 18 years and above, without other macular oedema-causing diseases, were included. A total of 50 eyes in each group were treated with an anti-VEGF agent (Group A) or dexamethasone implant (Group B), and Best Corrected Visual Acuity (BCVA) and Central Foveal Thickness (CFT) were monitored for six months. For statistical analysis, paired t-test and independent t-test were used for within-group and inter-group analysis, respectively. A p-value 〈 0.05 was considered statistically significant. Results: In both groups, post-treatment BCVA showed marked improvement, but there was no significant difference in mean BCVA between the groups (p=0.89) at six months. However, the mean CFT showed significant improvement in Group B at six months. In Group A, the mean CFT reduced from 441.87±54.48 μm to 257.83±25.73 μm, and in Group B, the mean CFT reduced from 464±109.44 μm to 207±22.51 μm at six months (p 〈 0.0001). Adverse events like cataracts and glaucoma were seen in patients treated with the dexamethasone implant and were managed by cataract surgery and topical anti-glaucoma medications, respectively. Conclusion: Dexamethasone implant and anti-VEGF agents are equally effective in improving visual acuity; however, dexamethasone stands superior in reducing macular thickness. Needing fewer injections while treating with a dexamethasone implant improves compliance. The progression of cataract remains a major side-effect with the dexamethasone implant, which is not a concern when treating DME in pseudophakic eyes.
    Materialart: Online-Ressource
    ISSN: 2249-782X
    Sprache: Unbekannt
    Verlag: JCDR Research and Publications
    Publikationsdatum: 2023
    ZDB Id: 2775283-5
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  • 2
    Online-Ressource
    Online-Ressource
    Elsevier BV ; 2008
    In:  Chest Vol. 134, No. 4 ( 2008-10), p. 79P-
    In: Chest, Elsevier BV, Vol. 134, No. 4 ( 2008-10), p. 79P-
    Materialart: Online-Ressource
    ISSN: 0012-3692
    RVK:
    Sprache: Englisch
    Verlag: Elsevier BV
    Publikationsdatum: 2008
    ZDB Id: 2007244-2
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  • 3
    In: Frontiers in Plant Science, Frontiers Media SA, Vol. 14 ( 2023-9-19)
    Kurzfassung: Maize ( Zea mays ) is the most important coarse cereal utilized as a major energy source for animal feed and humans. However, maize grains are deficient in methionine, an essential amino acid required for proper growth and development. Synthetic methionine has been used in animal feed, which is costlier and leads to adverse health effects on end-users. Bio-fortification of maize for methionine is, therefore, the most sustainable and environmental friendly approach. The zein proteins are responsible for methionine deposition in the form of δ-zein, which are major seed storage proteins of maize kernel. The present review summarizes various aspects of methionine including its importance and requirement for different subjects, its role in animal growth and performance, regulation of methionine content in maize and its utilization in human food. This review gives insight into improvement strategies including the selection of natural high-methionine mutants, molecular modulation of maize seed storage proteins and target key enzymes for sulphur metabolism and its flux towards the methionine synthesis, expression of synthetic genes, modifying gene codon and promoters employing genetic engineering approaches to enhance its expression. The compiled information on methionine and essential amino acids linked Quantitative Trait Loci in maize and orthologs cereals will give insight into the hotspot-linked genomic regions across the diverse range of maize germplasm through meta-QTL studies. The detailed information about candidate genes will provide the opportunity to target specific regions for gene editing to enhance methionine content in maize. Overall, this review will be helpful for researchers to design appropriate strategies to develop high-methionine maize.
    Materialart: Online-Ressource
    ISSN: 1664-462X
    Sprache: Unbekannt
    Verlag: Frontiers Media SA
    Publikationsdatum: 2023
    ZDB Id: 2687947-5
    ZDB Id: 2613694-6
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  • 4
    Online-Ressource
    Online-Ressource
    Frontiers Media SA ; 2021
    In:  Frontiers in Plant Science Vol. 12 ( 2021-10-4)
    In: Frontiers in Plant Science, Frontiers Media SA, Vol. 12 ( 2021-10-4)
    Kurzfassung: Nitrogen is one of the most important macronutrients for crop growth and metabolism. To identify marker-trait associations for complex nitrogen use efficiency (NUE)-related agronomic traits, field experiments were conducted on nested synthetic wheat introgression libraries at three nitrogen input levels across two seasons. The introgression libraries were genotyped using the 35K Axiom ® Wheat Breeder's Array and genetic diversity and population structure were examined. Significant phenotypic variation was observed across genotypes, treatments, and their interactions across seasons for all the 22 traits measured. Significant positive correlations were observed among grain yield and yield-attributing traits and root traits. Across seasons, a total of 233 marker-trait associations (MTAs) associated with fifteen traits of interest at different levels of nitrogen (N0, N60, and N120) were detected using 9,474 genome-wide single nucleotide polymorphism (SNP) markers. Of these, 45 MTAs for 10 traits in the N0 treatment, 100 MTAs for 11 traits in the N60 treatment, and 88 MTAs for 11 traits in the N120 treatment were detected. We identified putative candidate genes underlying the significant MTAs which were associated directly or indirectly with various biological processes, cellular component organization, and molecular functions involving improved plant growth and grain yield. In addition, the top 10 lines based on N response and grain yield across seasons and treatments were identified. The identification and introgression of superior alleles/donors improving the NUE while maintaining grain yield may open new avenues in designing next generation nitrogen-efficient high-yielding wheat varieties.
    Materialart: Online-Ressource
    ISSN: 1664-462X
    Sprache: Unbekannt
    Verlag: Frontiers Media SA
    Publikationsdatum: 2021
    ZDB Id: 2687947-5
    ZDB Id: 2613694-6
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  • 5
    Online-Ressource
    Online-Ressource
    Frontiers Media SA ; 2021
    In:  Frontiers in Plant Science Vol. 12 ( 2021-6-4)
    In: Frontiers in Plant Science, Frontiers Media SA, Vol. 12 ( 2021-6-4)
    Kurzfassung: Nitrogen is an essential nutrient required in large quantities for the proper growth and development of plants. Nitrogen is the most limiting macronutrient for crop production in most of the world’s agricultural areas. The dynamic nature of nitrogen and its tendency to lose soil and environment systems create a unique and challenging environment for its proper management. Exploiting genetic diversity, developing nutrient efficient novel varieties with better agronomy and crop management practices combined with improved crop genetics have been significant factors behind increased crop production. In this review, we highlight the various biochemical, genetic factors and the regulatory mechanisms controlling the plant nitrogen economy necessary for reducing fertilizer cost and improving nitrogen use efficiency while maintaining an acceptable grain yield.
    Materialart: Online-Ressource
    ISSN: 1664-462X
    Sprache: Unbekannt
    Verlag: Frontiers Media SA
    Publikationsdatum: 2021
    ZDB Id: 2687947-5
    ZDB Id: 2613694-6
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 6
    Online-Ressource
    Online-Ressource
    Springer Science and Business Media LLC ; 2021
    In:  Scientific Reports Vol. 11, No. 1 ( 2021-01-28)
    In: Scientific Reports, Springer Science and Business Media LLC, Vol. 11, No. 1 ( 2021-01-28)
    Kurzfassung: Maize protein quality is determined by the composition of its endosperm proteins, which are classified as nutritionally poor zeins (prolamin and prolamin-like) and nutritionally rich non-zeins (albumin, globulin, glutelin-like, and glutelin). Protein quality is considerably higher in opaque-2 mutants due to increased content of non-zeins over zeins. However, the opaque-2 endosperm is soft, which leads to poor agronomic performance and post-harvest infestation. Endosperm modification of opaque-2 had led to the development of Quality Protein Maize (QPM), which has higher protein quality along with hard kernel endosperm. The present study was planned to analyze the expression dynamics of different protein fractions in the endospem of developing maize kernel in normal, opaque-2 and QPM in response to the introgression of endosperm modifiers. Results revealed that albumin and globulin content decreases, whereas, prolamin, prolamin-like, glutelin-like, and glutelin content increases with kernel maturity. It has been observed that opaque-2 mutation affects protein expression at initial stages, whereas, the effect of endosperm modifiers was observed at the intermediate and later stages of kernel development. It has also been noted that prolamin, glutelin, and glutelin-like fractions can be used as quick markers for quality assessment for differentiating QPM varieties, even at the immature stage of kernel development. Overall, the present study implicates the role of different protein fractions in developing and utilizing nutritionally improved maize varieties.
    Materialart: Online-Ressource
    ISSN: 2045-2322
    Sprache: Englisch
    Verlag: Springer Science and Business Media LLC
    Publikationsdatum: 2021
    ZDB Id: 2615211-3
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  • 7
    In: Environmental and Experimental Botany, Elsevier BV, Vol. 212 ( 2023-08), p. 105394-
    Materialart: Online-Ressource
    ISSN: 0098-8472
    RVK:
    Sprache: Englisch
    Verlag: Elsevier BV
    Publikationsdatum: 2023
    ZDB Id: 1497561-0
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 8
    Online-Ressource
    Online-Ressource
    Springer Science and Business Media LLC ; 2020
    In:  Physiology and Molecular Biology of Plants Vol. 26, No. 2 ( 2020-02), p. 341-351
    In: Physiology and Molecular Biology of Plants, Springer Science and Business Media LLC, Vol. 26, No. 2 ( 2020-02), p. 341-351
    Materialart: Online-Ressource
    ISSN: 0971-5894 , 0974-0430
    Sprache: Englisch
    Verlag: Springer Science and Business Media LLC
    Publikationsdatum: 2020
    ZDB Id: 2487126-6
    SSG: 12
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 9
    In: Frontiers in Sustainable Food Systems, Frontiers Media SA, Vol. 6 ( 2022-4-4)
    Kurzfassung: The development of quality protein maize (QPM) was considered a significant leap toward improvement in the nutritional status of rural masses in developing countries. The nutritional quality of QPM is attributed to the higher concentration of essential amino acids, particularly lysine and tryptophan, in its kernel endosperm. However, the similarity in the grains of QPM and normal maize necessitates the development of a standard protocol to assess the protein quality of maize. The present study aimed at improving the protocol of protein quality assessment in QPM. For this purpose, endosperm defatting and protein estimation procedures were restandardized and optimized with respect to the protocol duration and its amenability for high-throughput analysis. Unlike normal maize, QPM and opaque-2 mutants were completely defatted within a 48 h period. It was observed that the tryptophan content, calculated at each defatting interval, increased in the samples defatted for a longer duration. No significant differences were observed in the tryptophan content analyzed in the samples defatted for 48 and 72 h. Moreover, the endosperm protein estimated by using the Bradford method with certain modifications strongly correlated with the micro-Kjeldahl method ( r = 0.9). Relative to the micro-Kjeldahl method, the Bradford method was found to be precise, rapid, and hazard-free. The present findings enable a testing protocol of reduced time duration that can be used in resource-poor settings for the determination of a protein quality assay in QPM. Overall, the present study effectively helped in reducing the defatting time by 24 h and protein estimation by 3 h as compared to the already established International Maize and Wheat Improvement Center protocol. This is expected to enable the aggregation of high-protein-quality maize to facilitate its commercialization.
    Materialart: Online-Ressource
    ISSN: 2571-581X
    Sprache: Unbekannt
    Verlag: Frontiers Media SA
    Publikationsdatum: 2022
    ZDB Id: 2928540-9
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  • 10
    Online-Ressource
    Online-Ressource
    Diva Enterprises Private Limited ; 2022
    In:  Baba Farid University Dental Journal Vol. 12, No. 2 ( 2022), p. 80-88
    In: Baba Farid University Dental Journal, Diva Enterprises Private Limited, Vol. 12, No. 2 ( 2022), p. 80-88
    Materialart: Online-Ressource
    ISSN: 0976-8181 , 2230-7273
    Sprache: Englisch
    Verlag: Diva Enterprises Private Limited
    Publikationsdatum: 2022
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