233 results on '"VITAMIN-C"'
Search Results
2. An In vitro study on impact of vitamin-C on cefuroxime mediated alterations in bio-parameters associated with free radical linked lipid decomposition
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Ghosh, Madhurima, Ghosh, Miltu Kumar, Devbhuti, Debabrata, Dasgupta, Sandipan, and Devbhuti, Pritesh
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- 2024
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3. Scurvy masquerading as IgA vasculitis
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Hanna L. Kassa, S. Singh, M. Douglas-Jones, Gill Schermbrucker, J De Lange, Frank Phoya, Claire Butters, Carol Hlela, Ashton Coetzee, Ebrahim Banderker, and Kate Webb
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Scurvy ,Vitamin-C ,Purpuric-rash ,Selective-diet ,IgA vasculitis ,Henoch Schonlein Purpura ,Pediatrics ,RJ1-570 ,Diseases of the musculoskeletal system ,RC925-935 - Abstract
Abstract Background Vitamin C deficiency, or scurvy, is rare but poses risks for children with poor diets, limited resources, or malabsorption issues. It may also be common in children with restrictive or selective dietary habits in children with global developmental delay, autism spectrum disorder, and physical disabilities. Symptoms include fatigue, irritability, joint and muscle pain, joint swellings, edema, swollen gums, easy bruising, and delayed wound healing. Early recognition and prompt intervention are essential to prevent the progression of symptomatic vitamin C deficiency in children. Case presentation We present a case of a 13-year-old boy with developmental delay secondary to Lennox Gastaut syndrome referred for suspected recurrent, severe, and atypical IgA vasculitis. He presented with irritability, loss of appetite, petechial and ecchymotic lower limb lesions, unilateral gum swelling, severe arthritis, peripheral oedema, severe weight loss, anaemia, and raised inflammatory markers. Multiple investigations were performed before the diagnosis of scurvy was made. A surgical finding of friable gingival tissue with multiple loose teeth, a skin biopsy with follicular hyperkeratosis and extravasated perifollicular red blood cells, and a typical X-ray finding led to the diagnosis of scurvy. Conclusion Scurvy should be given careful consideration as a differential diagnosis in patients presenting with musculoskeletal issues, mucocutaneous complaints, and constitutional symptoms such as malaise, asthenia, irritability, and loss of appetite. A focused and detailed dietary history looking for a lack of good sources of vitamin C can be an easy indicator of this differential. Imaging studies revealing the typical features can also help make the diagnosis. Pathology of the skin revealing pathognomonic features can add to the certainty of the diagnosis. In the absence of all else, the rapid response to treatment with an appropriate dose of vitamin C has a diagnostic and therapeutic role.
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- 2024
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4. Scurvy masquerading as IgA vasculitis.
- Author
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Kassa, Hanna L., Singh, S., Douglas-Jones, M., Schermbrucker, Gill, De Lange, J, Phoya, Frank, Butters, Claire, Hlela, Carol, Coetzee, Ashton, Banderker, Ebrahim, and Webb, Kate
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VITAMIN C deficiency , *SCURVY , *DISABILITIES , *IMMUNOGLOBULIN A , *DIETARY patterns , *POSTPOLIOMYELITIS syndrome , *ORAL habits - Abstract
Background: Vitamin C deficiency, or scurvy, is rare but poses risks for children with poor diets, limited resources, or malabsorption issues. It may also be common in children with restrictive or selective dietary habits in children with global developmental delay, autism spectrum disorder, and physical disabilities. Symptoms include fatigue, irritability, joint and muscle pain, joint swellings, edema, swollen gums, easy bruising, and delayed wound healing. Early recognition and prompt intervention are essential to prevent the progression of symptomatic vitamin C deficiency in children. Case presentation: We present a case of a 13-year-old boy with developmental delay secondary to Lennox Gastaut syndrome referred for suspected recurrent, severe, and atypical IgA vasculitis. He presented with irritability, loss of appetite, petechial and ecchymotic lower limb lesions, unilateral gum swelling, severe arthritis, peripheral oedema, severe weight loss, anaemia, and raised inflammatory markers. Multiple investigations were performed before the diagnosis of scurvy was made. A surgical finding of friable gingival tissue with multiple loose teeth, a skin biopsy with follicular hyperkeratosis and extravasated perifollicular red blood cells, and a typical X-ray finding led to the diagnosis of scurvy. Conclusion: Scurvy should be given careful consideration as a differential diagnosis in patients presenting with musculoskeletal issues, mucocutaneous complaints, and constitutional symptoms such as malaise, asthenia, irritability, and loss of appetite. A focused and detailed dietary history looking for a lack of good sources of vitamin C can be an easy indicator of this differential. Imaging studies revealing the typical features can also help make the diagnosis. Pathology of the skin revealing pathognomonic features can add to the certainty of the diagnosis. In the absence of all else, the rapid response to treatment with an appropriate dose of vitamin C has a diagnostic and therapeutic role. [ABSTRACT FROM AUTHOR]
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- 2024
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5. Assessment of Bitter Gourd Hybrids for Charantin and Other Vital Qualitative Traits.
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Srinivasulu, B., Padma, S. S. Vijaya, Rao, L. M. Paratpara, Kumar, Ch. Kiran, and Sekhar, V.
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This article presents the findings of a study conducted in Andhra Pradesh, India, on the quality traits of bitter gourd hybrids. The study focused on parameters such as TSS, vitamin C content, iron content, and charantin content. Certain hybrids, including Preethi x Special Boldar and Kashi Mayuri x Special Boldar, showed promise for quality attributes like TSS, vitamin C, and iron. Additionally, hybrids like Kashi Mayuri x IC-68314 and IC-68314 x Special Boldar exhibited high charantin content, which is known for its anti-diabetic properties. The study suggests that these hybrids have the potential to improve the quality traits of bitter gourd. [Extracted from the article]
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- 2024
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6. Development of hybrids in bitter gourd for charantin and other qualitative traits.
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Srinivasulu, B., Vijaya Padma, S. S., Naidu, L. Naram, Kumar, Ch. Kiran, and Sekhar, V.
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MOMORDICA charantia ,CROP quality ,VITAMIN C ,SUMMER ,HETEROSIS ,BLOCK designs - Abstract
Commercial exploitation of bitter gourd hybrids is primarily focused on yield, while limited research has been conducted on the quality aspects of this crop. The study was conducted during the Summer and Kharif seasons of 2022 to identify superior hybrids compared to the standard checks in terms of significant quality traits. A total of 21 crosses were produced by crossing seven genetically distinct parents in a half diallel mating pattern during the summer of 2022. A total of 7 parents, 21 F1 hybrids, and 2 checks were assessed using a randomized complete block design with three replications during the Kharif season of 2022. The crosses, viz., Kashi Mayuri x IC-44418 and IC-44418 x IC-68314 have shown better performance in terms of quality aspects such as TSS. On the other hand, Kashi Mayuri x Special Boldar and IC-44418 x Special Boldar were found to be superior than commercial checks, Pragathi and Monarch for vitamin-C. Significantly greater heterosis for iron content was observed in the crosses viz., Kashi Mayuri x IC-469512, IC-433630 x IC-469512, and Kashi Mayuri x Special Boldar. Charantin, known for its antidiabetic properties, is a significant quality character present in fruits. The hybrids viz., IC-44418 x IC-68314, IC-433630 x IC-68314, and IC-68314 x IC-469512 demonstrated a significant increase in charantin heterosis. The superior cross combinations identified in this study warrant further evaluation to assess their potentiality and stability for commercial release as hybrids or varieties. [ABSTRACT FROM AUTHOR]
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- 2024
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7. Characterization of pepper (Capsicum spp.) germplasms based on morphological and phytochemical characters in Bangladesh
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Parvin, Nighat, Masuda, Mst Salma, Turin, Mst Tanjina Shahanaj, Jui, Sohana, Amzad, Mst. Anamika, Khatun, Mst. Ananya, Arifuzzaman, Md, Alshamrani, Rahma Ibrahim, and Ahmed, Eakhlas Uddin
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- 2024
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8. Sustaining soil health and tomato production through organic inputs and bacterial inoculations in alluvial soils detoxifying plant contaminants.
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Verma, Shiv Bhushan, Kumar, Chitranjan, and Narayan, Raghvendra Pratap
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FLUVISOLS , *SOIL inoculation , *POLLUTANTS , *SANDY loam soils , *HEAVY metals , *PLANT-soil relationships - Abstract
• The optimized treatment was developed from FYM, vermicompost, mustard cake, goat manure, poultry manure, neem cake, 14.3% recommended dose of fertilizers, and dual inoculation with Azotobacter and PSB (phosphorus solubilizing bacteria). • The optimized treatment improved the morphological and nutritional quality of tomatoes, reduced the concentration of heavy metals (Cd, Cr, and Pb) in soils, and overall, sustained tomato production in alluvial and metal-contaminated sandy loam soils. • The optimized organic inputs harness the climatic conditions in tropical regions to facilitate better color, shelf-life, and ripening leading to higher lycopene contents in tomatoes. • Organic inputs and bacterial inoculation enhanced soil nutrient status, and its overall soil health. • The authors recommend applying a combination of bulky and concentrated organic inputs and inoculation of Azotobacter and PBS for sustaining soil health and crop productivity. The demand for organic tomatoes is gaining momentum globally, especially for their nutritional quality, shelf-life, and yield sustainability. Similarly, the restoration of metal-contaminated soils and maintenance of soil health is getting momentum through the application of organic inputs and microbial inoculations in soils. The present study evaluates different concentrated organic inputs and biofertilizers with a minimal dosage (14.3% of the recommended dose of fertilizers or RDF) under a field experiment conducted at the Agricultural Farm of Amity Institute of Organic Agriculture, Amity University, Noida, Uttar Pradesh, India. Organic treatments included mustard cake, goat manure, poultry manure, farmyard manure (FYM), neem cake, and biofertilizers (Azotobacter and phosphate solubilizing bacteria, or PSB). FYM (15 t ha−1) and vermicompost (VC 3.0 t ha−1) (T 5), and the optimized inputs (containing the dual inoculation of Azotobacter and PSB, a mixture of organic inputs, and 14.3% RDF (T 11) significantly improved plant height, number of branches/leaves/fruits, carotenoids, lycopene, fruit weight, yield, ascorbate peroxidase, total antioxidants, superoxide dismutase, total soluble solids (TSS), Vitamin C, and shelf-life in tomatoes. Organic inputs and inoculation of Azotobacter and PSB significantly reduced the concentration of Cd, Cr, and Pb from soils. The authors conclude that (a) the combined application of FYM and VC, and (b) the optimized mixture of bulky and concentrated organic inputs, 14.3% RDF, and the dual inoculation can improve the nutritional quality, minimize heavy metals (Cd, Cr, and Pb), and overall, sustain tomato production in the hot semi-arid alluvial sandy loam soils. The optimized organic inputs with dual microbial inoculations harness the climatic conditions in tropical regions to facilitate better color and ripening, and other quality parameters leading to higher lycopene contents in tomatoes. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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9. Formulation and Characterization of a multiple Emulsion containing Vitamin - C
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Swamy, M. Venkata, Metta, Samyuktha, Kumar, A. Ajay, Reddy, C. Jagan Mohan, Dharani, G., and Ramya, K.
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- 2023
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10. Utilization of raw mango peel waste for instant soup preparation
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Garg, Neelima, Kumar, Sanjay, Vaish, Supriya, and Singh, Balvindra
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- 2022
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11. Obesity and dyslipidemia are associated with partially reversible modifications to DNA hydroxymethylation of apoptosis- and senescence-related genes in swine adipose-derived mesenchymal stem/stromal cells.
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Glasstetter, Logan M., Oderinde, Tomiwa S., Mirchandani, Mohit, Rajagopalan, Kamalnath Sankaran, Barsom, Samer H., Thaler, Roman, Siddiqi, Sarosh, Zhu, Xiang-Yang, Tang, Hui, Jordan, Kyra L., Saadiq, Ishran M., van Wijnen, Andre J., Eirin, Alfonso, and Lerman, Lilach O.
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STROMAL cells , *IMMUNOSENESCENCE , *IMMUNOPRECIPITATION , *SWINE , *OBESITY , *CARDIOVASCULAR diseases risk factors , *DYSLIPIDEMIA - Abstract
Background: Obesity dysregulates key biological processes underlying the functional homeostasis, fate decisions, and reparative potential of mesenchymal stem/stromal cells (MSCs). Mechanisms directing obesity-induced phenotypic alterations in MSCs remain unclear, but emerging drivers include dynamic modification of epigenetic marks, like 5-hydroxymethylcytosine (5hmC). We hypothesized that obesity and cardiovascular risk factors induce functionally relevant, locus-specific changes in 5hmC of swine adipose-derived MSCs and evaluated their reversibility using an epigenetic modulator, vitamin-C. Methods: Female domestic pigs were fed a 16-week Lean or Obese diet (n = 6 each). MSCs were harvested from subcutaneous adipose tissue, and 5hmC profiles were examined through hydroxymethylated DNA immunoprecipitation sequencing (hMeDIP-seq) followed by an integrative (hMeDIP and mRNA sequencing) gene set enrichment analysis. For clinical context, we compared 5hmC profiles of adipose tissue-derived human MSCs harvested from patients with obesity and healthy controls. Results: hMeDIP-seq revealed 467 hyper- (fold change ≥ 1.4; p-value ≤ 0.05) and 591 hypo- (fold change ≤ 0.7; p-value ≤ 0.05) hydroxymethylated loci in swine Obese- versus Lean-MSCs. Integrative hMeDIP-seq/mRNA-seq analysis identified overlapping dysregulated gene sets and discrete differentially hydroxymethylated loci with functions related to apoptosis, cell proliferation, and senescence. These 5hmC changes were associated with increased senescence in cultured MSCs (p16/CDKN2A immunoreactivity, senescence-associated β-galactosidase [SA-β-Gal] staining), were partly reversed in swine Obese-MSCs treated with vitamin-C, and shared common pathways with 5hmC changes in human Obese-MSCs. Conclusions: Obesity and dyslipidemia are associated with dysregulated DNA hydroxymethylation of apoptosis- and senescence-related genes in swine and human MSCs, potentially affecting cell vitality and regenerative functions. Vitamin-C may mediate reprogramming of this altered epigenomic landscape, providing a potential strategy to improve the success of autologous MSC transplantation in obese patients. [ABSTRACT FROM AUTHOR]
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- 2023
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12. Effect of vitamin C and folate on heat-stressed chickens’ egg quality and daily egg production
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Okocha I. Onuoha and Herbert Udo
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chickens ,egg quality ,folate ,heat-stress ,vitamin-c ,Science ,Technology ,Education - Abstract
Egg quality is of economic consideration especially in thermally challenged confinements during table egg production and transportation. The effect of vitamin-C and folate on heat-stressed chickens’ egg quality and performance is aimed at overcoming the negative impact of exposure to increased environmental heat load at peak heat periods of the year using vitamin-C as ameliorative agent, and efficient utilization of consumed feed, using folate. This is in other to lay quality eggs and perform optimally. A total of 72 Isa Brown laying hens at 31 weeks of age were randomly divided into 4 treatment groups of 36 birds subdivided into 3 replicates and indicated as T1, T2, T3 and T4 while T1 served as the control treatment. The birds were housed in a deep litter pen and exposed to 3-hours additional heat generated with gas-powered burners, for four consecutive days of each week for a period of 12 weeks. The diets for T2, T3 and T4 were supplemented with 250 mg of vitamin-C, 250 mg of vitamin-C + 1 mg of folate and 300 mg of vitamin-C + 1 mg of folate per kg of feed respectively. The results showed that T4 had the highest egg weights (60.04 g), shell thickness (0.53 mm) and shell weights (7.80 g). The albumin weight (37.20 g), albumin height (6.80 mm) and yolk weight (14.70 g) were highest (P
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- 2022
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13. Synergistic activity of vitamin-C and vitamin-E to ameliorate the efficacy of stored erythrocytes.
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Pallavi, Masannagari and Rajashekaraiah, Vani
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VITAMIN C , *ERYTHROCYTES , *RED blood cell transfusion , *SUPEROXIDE dismutase , *OXIDATIVE stress - Abstract
Erythrocytes are exposed to oxidative stress during storage and can be stored for up to 42 days (in AS-7) under blood bank conditions for transfusion. Vitamin-C and Vitamin-E have proved beneficial in diminishing oxidative stress. Therefore, this study aims to investigate the combined effects of Vitamin-C and Vitamin-E on erythrocytes during storage. Blood was collected from male Wistar rats and erythrocytes were isolated and stored in AS-7 (Additive Solution) at 4 °C for 35 days. Erythrocytes were grouped into i) Controls and ii) Experimentals [Vitamin-C (10 mM) and Vitamin-E (2 mM)]. Antioxidant and oxidative stress markers were assessed at weekly intervals. Statistical analyses were performed by using GraphPad Prism software. Hemoglobin increased on days 7 and 14 in the Experimentals. Superoxide dismutase activity elevated on days 7 & 14 in Controls and on day 7 in Experimentals. Catalase activity increased on day 21 in both groups. Protein carbonyls decreased on days 21 and 28 in Experimentals. Thiobarbituric acid reactive substances decreased from day 14 in both groups. Conjugate dienes decreased on days 21 & 35 in the Experimentals. Glutathione increased from day 14 in both groups. Superoxides decreased on days 14, 28 & 35 in Controls and from day 14 in Experimentals. Vitamin-C and Vitamin-E have been beneficial in terms of hemoglobin, antioxidants, protein & lipid oxidations and superoxides in stored erythrocytes. Therefore, this study provides new avenues for the development of effective storage solutions which will have a clinical impact in erythrocyte transfusions. [ABSTRACT FROM AUTHOR]
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- 2023
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14. Effect of vitamin C and folate on heat-stressed chickens' egg quality and daily egg production.
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Onuoha, Okocha I. and Udo, Herbert
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VITAMIN C , *EGG quality , *CHICKENS , *EGG yolk , *NUTRITION - Abstract
Egg quality is of economic consideration especially in thermally challenged confinements during table egg production and transportation. The effect of vitamin-C and folate on heat-stressed chickens' egg quality and performance is aimed at overcoming the negative impact of exposure to increased environmental heat load at peak heat periods of the year using vitamin-C as ameliorative agent, and efficient utilization of consumed feed, using folate. This is in other to lay quality eggs and perform optimally. A total of 72 Isa Brown laying hens at 31 weeks of age were randomly divided into 4 treatment groups of 36 birds subdivided into 3 replicates and indicated as T1, T2, T3 and T4 while T1 served as the control treatment. The birds were housed in a deep litter pen and exposed to 3-hours additional heat generated with gas-powered burners, for four consecutive days of each week for a period of 12 weeks. The diets for T2, T3 and T4 were supplemented with 250 mg of vitamin-C, 250 mg of vitamin-C + 1 mg of folate and 300 mg of vitamin-C + 1 mg of folate per kg of feed respectively. The results showed that T4 had the highest egg weights (60.04 g), shell thickness (0.53 mm) and shell weights (7.80 g). The albumin weight (37.20 g), albumin height (6.80 mm) and yolk weight (14.70 g) were highest (P<0.05) in T4 while daily eggs production/treatment/day was highest in T4 (8.04). The daily feed intake was (P<0.05) highest in T3 and T4 (0.42 kg/bird) and (P<0.05) lowest in T3 and T4 (1.51). It is concluded that combined supplementation of layers' diet with vitamin-C and folate at the ratio of 350 mg: 1 mg/kg of feed) help to reduce negative impact of heat stress and enhance efficient utilization of feed consumed. It is recommended as a nutritional management strategy in minimizing the negative impact of increased heat load coupled with very high relative humidity. [ABSTRACT FROM AUTHOR]
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- 2022
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15. Vitamin C and E supplementation can ameliorate NaF mediated testicular and spermatozoal DNA damages in adult Wistar rats.
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Pal, Priyankar, De, Ayan, Roychowdhury, Tarit, and Mukhopadhyay, Prabir Kumar
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VITAMIN C , *LABORATORY rats , *DNA damage , *SODIUM fluoride , *DIETARY supplements , *VITAMIN E , *DIFLUOROETHYLENE - Abstract
Present study was designed to explore the efficacy of vitamin C and E (VC&VE) against fluoride mediated testicular, epididymal and spermatozoal anomalies. Thirty two adult Wistar rats were divided into four groups. Group-I was control; Group-II received sodium fluoride (NaF) at 15 mg/kg/day dose; Group-III was provided with VC (200 mg/kg/day) and VE (400 mg/kg/day) plus NaF; Group-IV received only VC&VE. Structural integrity and oxidative stress markers (superoxide dismutase, catalase, malondialdehyde and protein carbonyl) of testis and epididymis were assessed. Spermatozoal parameters (count, motility, viability and hypo-osmotic swelling) were evaluated. Testicular functional maker enzymes (acid phosphatase, alkaline phosphatase and lactate dehydrogenase) were also assessed. Integrity of testicular and spermatozoal DNA was evaluated. Testicular fluoride content was measured. Fluoride induced structural changes and alterations of oxidative stress markers were observed in testis and epididymis. Spermatozoal potentials were altered and reduced activities of testicular functional marker enzymes were observed. Fluoride caused testicular and spermatozoal DNA damages. VC&VE supplementation resulted in protection from all fluoride mediated alterations and helped in attenuating testicular fluoride accumulation. Antioxidant properties of VC&VE ameliorated fluoride mediated reproductive damages but only supplementation did not exhibit any notable effect compared to control rats. [ABSTRACT FROM AUTHOR]
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- 2022
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16. High-Dose Vitamin C for Cancer Therapy.
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Mussa, Ali, Mohd Idris, Ros Akmal, Ahmed, Naveed, Ahmad, Suhana, Murtadha, Ahmad Hafiz, Tengku Din, Tengku Ahmad Damitri Al Astani, Yean, Chan Yean, Wan Abdul Rahman, Wan Faiziah, Mat Lazim, Norhafiza, Uskoković, Vuk, Hajissa, Khalid, Mokhtar, Noor Fatmawati, Mohamud, Rohimah, and Hassan, Rosline
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CANCER treatment , *VITAMIN C , *REACTIVE oxygen species , *CLINICAL trials , *TUMOR growth , *CELL growth - Abstract
In recent years, the idea that Vitamin C (Vit-C) could be utilized as a form of anti-cancer therapy has generated many contradictory arguments. Recent insights into the physiological characteristics of Vit-C, its pharmacokinetics, and results from preclinical reports, however, suggest that high-dose Vit-C could be effectively utilized in the management of various tumor types. Studies have shown that the pharmacological action of Vit-C can attack various processes that cancerous cells use for their growth and development. Here, we discuss the anti-cancer functions of Vit-C, but also the potential for the use of Vit-C as an epigenetic regulator and immunotherapy enhancer. We also provide a short overview of the current state of systems for scavenging reactive oxygen species (ROS), especially in the context of their influencing high-dose Vit-C toxicity for the inhibition of cancer growth. Even though the mechanisms of Vit-C action are promising, they need to be supported with robust randomized and controlled clinical trials. Moreover, upcoming studies should focus on how to define the most suitable cancer patient populations for high-dose Vit-C treatments and develop effective strategies that combine Vit-C with various concurrent cancer treatment regimens. [ABSTRACT FROM AUTHOR]
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- 2022
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17. Ameliorative effects of dietary Vitamin‐C on growth performance and hemato‐biochemical response of sodium fluoride‐intoxicated Amur Carp, Cyprinus carpio haematopterus.
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Kaur, Rajinder, Batra, Munish, Shah, Tarang Kumar, and Saxena, Amita
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VITAMIN C , *CARP , *DIETARY supplements , *BLOOD proteins , *SODIUM fluoride , *SODIUM , *ALBUMINS - Abstract
This study aimed to assess the ameliorative dietary effect of vitamin‐C against sodium fluoride (NaF)‐induced toxicity on growth and haemato‐biochemical parameters in Amur carp. A total of 150 fish (average body weight 169 ± 0.69 g) were randomly distributed into five groups (with three triplicates) including G1 (control); G2 (NaF exposure @100 ppm); G3 (vitamin‐C supplemented diet @100 ppm); G4 (both NaF exposure @100 ppm and vitamin‐C supplemented diet @100 ppm) and G5 (NaF exposure @100 ppm for 60 days and then vitamin‐C supplemented diet @200 ppm for last 30 days). Results revealed that growth and hemato‐biochemical profile was best in G3 in comparison with G1, whereas groups G2, G4 and G5 have shown retarded growth, a decrease in Hb, TEC, PCV, MCV, MCH and MCHC. Serum‐biochemical parameters were found optimum in G3 as compared with G1 and in groups of G2, G4 and G5, total serum protein, albumin, globulin, glucose, and triglyceride levels decreased significantly, whereas creatinine, AST and ALT levels increased significantly. In G4, toxicity was less severe in comparison with G2, whereas in G5, after the dietary supplementary of vitamin‐C, parameters have shown a bend towards the normal values. Thus, it can be concluded that vitamin‐C has ameliorative action against fluoride toxicity in fish. [ABSTRACT FROM AUTHOR]
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- 2022
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18. Effect of mineral and vitamin C mix on growth performance and blood corticosterone concentrations in heat-stressed broilers
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A. Saiz del Barrio, W.D. Mansilla, A. Navarro-Villa, J.H. Mica, J.H. Smeets, L.A. den Hartog, and A.I. García-Ruiz
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broilers ,heat stress ,mineral ,nutrition ,vitamin-C ,Animal culture ,SF1-1100 ,Food processing and manufacture ,TP368-456 - Abstract
Summary: Heat stress is a major problem in the poultry industry, especially during summer months and when birds are raised under high-density conditions. Previous studies have reported that vitamin C or electrolyte supplementation could palliate the effects of heat stress in broiler chickens. The present study evaluated the effect of a mineral and vitamin mix (AHS) added to drinking water on the performance of broiler chickens. In total, 1,824 one-day-old birds were randomly allocated to 48 pens. Maximum animal density was 26.5 kg/m2. The control group received no additive; AHS-1 and -2 groups received the AHS mix at a concentration of 1 and 2 kg/1,000 L in drinking water, respectively; and the Vit-C group received vitamin C in drinking water at 200 g/1,000 L. All birds were fed the same diets based on a 3-phase feeding program; feed and water were given on ad libitum basis. To mimic heat stress conditions, temperature in the barn was raised to 35 C from 08:00 to 14:00 h each day. For the overall growing period (0 to 35 D), adding AHS to drinking water increased final BW, ADG, and ADFI linearly (PLinear 0.10). No significant effect on mortality were found (8.77%; P > 0.10). Relative to control, all the treatments tested reduced (P < 0.05) corticosterone concentration in blood serum. In conclusion, the combined use of supplementary levels of minerals and vitamins could alleviate the effects of heat stress on broilers chickens.
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- 2020
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19. A secondary approach with conventional medicines and supplements to recuperate current COVID-19 status
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Apu Chowdhury, Muhammad Sajid, Nabila Jahan, Temitope Isaac Adelusi, Pulak Maitra, Guolian Yin, Xudong Wu, Yuan Gao, and Sicen Wang
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COVID-19 ,Ivermectin ,Doxycycline ,Zinc ,Vitamin-D ,Vitamin-C ,Therapeutics. Pharmacology ,RM1-950 - Abstract
Novel coronavirus 2019 (COVID-19) is a zoonosis that revised the global economic and societal progress since early 2020. The SARS-CoV-2 has been recognized as the responsible pathogen for COVID-19 with high infection and mortality rate potential. It has spread in 192 countries and infected about 1.5% of the world population, and still, a proper therapeutic approach is not unveiled. COVID-19 indication starts with fever to shortness of breathing, leading to ICU admission with the ventilation support in severe conditions. Besides the symptomatic mainstay clinical therapeutic approach, only Remdesivir has been approved by the FDA. Several pharmaceutical companies claimed different vaccines with exceptionally high efficacy (90–95%) against COVID-19; how long these vaccines can protect and long-term safety with the new variants are unpredictable. After the worldwide spread of the COVID-19 pandemic, numerous clinical trials with different phases are being performed to find the most appropriate solution to this condition. Some of these trials with old FDA-approved drugs showed promising results. In this review, we have precisely compiled the efforts to curb the disease and discussed the clinical findings of Ivermectin, Doxycycline, Vitamin-D, Vitamin-C, Zinc, and cannabidiol and their combinations. Additionally, the correlation of these molecules on the prophylactic and diseased ministration against COVID-19 has been explored.
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- 2021
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20. Vitamin C Reverses Endosulfan-Induced Testicular Toxicity in Prepubertal Male Rats: A Histopathological Study
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Vasanthalaxmi, K., Kumar, Sucheta P., and Manjula, S.D.
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- 2019
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21. Improving the oxidative stability of virgin olive oil using microformulated vitamin‐C.
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Osanloo, Mahmoud, Jamali, Narjes, and Nematollahi, Amene
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OLIVE oil , *FREE radicals , *MICROEMULSIONS , *PETROLEUM industry - Abstract
This study aims to improve the oxidative stability of olive oil using microformulated vitamin‐C (Vit‐C). The microemulsion containing 10,000 µg/ml Vit‐C with a droplet size of 1,000 ± 68 nm was first prepared. Free radical scavenging of olive oil and olive oil containing blank microemulsion, different amounts of formulated Vit‐C (100–500 µg/ml), and TBHQ (100 and 200 µg/ml as a standard antioxidant) was around 90% during 21 days of incubation at 60°C. The oxidative stability of the mentioned samples during incubation was investigated using the rancimat test, and their quality criteria analysis was studied by peroxide and the acid values. Results showed that the sample's acid value containing 500 µg/ml of Vit‐C did not show significant differences (p <.05) with samples containing TBHQ. However, samples containing TBHQ's peroxide value were significant (p <.05) lower than samples containing 500 µg/ml of Vit‐C. Furthermore, the induction time of samples containing 500 µg/ml of Vit‐C was significantly (p <.05) higher than other treatments during incubation. Thus, the prepared microemulsion could be used as a natural antioxidant in the oil industry instead of harmful synthetic TBHQ. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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22. Antioxidants other than vitamin C may be detected by glucose meters: Immediate relevance for patients with disorders targeted by antioxidant therapies.
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Grzych, Guillaume, Pekar, Jean-David, Chevalier-Curt, Marie Joncquel, Decoin, Raphaël, Vergriete, Pauline, Henry, Héloïse, Odou, Pascal, Maboudou, Patrice, Brousseau, Thierry, and Vamecq, Joseph
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GLYCEMIC index , *VITAMIN C , *COVID-19 , *BLOOD sugar , *GLUCOSE , *GLUTATHIONE , *BLOOD sugar monitors - Abstract
• Antioxidants other than vitamin C may cause falsely elevated glucose meter readouts. • Glucose meter users should be alerted to the effects of high-dose antioxidants on glucose results. • Studies on non-blood samples verify the antioxidant detection by some glucose meters. • Parkes error grid analyses highlight the risk for glycemic mismanagement. • Reduced (but not oxidized) forms of antioxidants interfere with glucose meters. Owing to their ease of use, glucose meters are frequently used in research and medicine. However, little is known of whether other non-glucose molecules, besides vitamin C, interfere with glucometry. Therefore, we sought to determine whether other antioxidants might behave like vitamin C in causing falsely elevated blood glucose levels, potentially exposing patients to glycemic mismanagement by being administered harmful doses of glucose-lowering drugs. To determine whether various antioxidants can be detected by seven commercial glucose meters, human blood samples were spiked with various antioxidants ex vivo and their effect on the glucose results were assessed by Parkes error grid analysis. Several of the glucose meters demonstrated a positive bias in the glucose measurement of blood samples spiked with vitamin C, N -acetylcysteine, and glutathione. With the most interference-sensitive glucose meter, non-blood solutions of 1 mmol/L N- acetylcysteine, glutathione, cysteine, vitamin C, dihydrolipoate, and dithiothreitol mimicked the results seen on that glucose meter for 0.7, 1.0, 1.2, 2.6, 3.7 and 5.5 mmol/L glucose solutions, respectively. Glucose meter users should be alerted that some of these devices might produce spurious glucose results not only in patients on vitamin C therapy but also in those being administered other antioxidants. As discussed herein, the clinical relevance of the data is immediate in view of the current use of antioxidant therapies for disorders such as the metabolic syndrome, diabetes, cardiovascular diseases, and coronavirus disease 2019. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
23. Effect of Planting Time on the Yield and Quality of Cherry Tomato (Solanum lycopersicum var. Cerasiforme).
- Author
-
Hossain, Md. Farid
- Subjects
TRANSPLANTING (Plant culture) ,TOMATO yields ,FRUIT quality ,PLANTING time ,COMPOSITION of tomatoes - Abstract
Planting date is an important factor which directly related to crop production in a specific area. Different planting time may affect crop yield and quality due to varying climatic conditions at different stages of crop growth and development. The present experiment was laid out to investigate the effect of planting date at an interval of 15 days during winter season of 2019-20 on the yield and quality of cherry tomato. The potentiality of fruiting in the winter season was evaluated by planting on November 15, November 30, December 15, December 30 and January 14. Data on yield and quality attributes of cherry tomato like plant height, number of fruits per plant, fruit yield per plant (g), yield (t ha-1), TSS (%), pH and vitamin C contents (mg 100 g-1) were recorded. Results revealed that planting time had significant effects on the yield and quality parameters of cherry tomato. Cherry tomato performed better on 30 November planting date in respect of yield and vitamin C content due to favorable climatic conditions at different growing stages as per requirements that may lead to higher yield and quality of fruits. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
24. High-Dose Vitamin C for Cancer Therapy
- Author
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Ali Mussa, Ros Akmal Mohd Idris, Naveed Ahmed, Suhana Ahmad, Ahmad Hafiz Murtadha, Tengku Ahmad Damitri Al Astani Tengku Din, Chan Yean Yean, Wan Faiziah Wan Abdul Rahman, Norhafiza Mat Lazim, Vuk Uskoković, Khalid Hajissa, Noor Fatmawati Mokhtar, Rohimah Mohamud, and Rosline Hassan
- Subjects
high-dose ,anti-cancer ,vitamin-C ,pharmacological ,pharmacokinetics ,cancer ,Medicine ,Pharmacy and materia medica ,RS1-441 - Abstract
In recent years, the idea that Vitamin C (Vit-C) could be utilized as a form of anti-cancer therapy has generated many contradictory arguments. Recent insights into the physiological characteristics of Vit-C, its pharmacokinetics, and results from preclinical reports, however, suggest that high-dose Vit-C could be effectively utilized in the management of various tumor types. Studies have shown that the pharmacological action of Vit-C can attack various processes that cancerous cells use for their growth and development. Here, we discuss the anti-cancer functions of Vit-C, but also the potential for the use of Vit-C as an epigenetic regulator and immunotherapy enhancer. We also provide a short overview of the current state of systems for scavenging reactive oxygen species (ROS), especially in the context of their influencing high-dose Vit-C toxicity for the inhibition of cancer growth. Even though the mechanisms of Vit-C action are promising, they need to be supported with robust randomized and controlled clinical trials. Moreover, upcoming studies should focus on how to define the most suitable cancer patient populations for high-dose Vit-C treatments and develop effective strategies that combine Vit-C with various concurrent cancer treatment regimens.
- Published
- 2022
- Full Text
- View/download PDF
25. STUDY ON EFFECT OF VITAMIN-C AS ADD ON THERAPY WITH ANTIDIABETIC DRUGS IN TYPE-2 DIABETES MELLITUS PATIENTS ASSOCIATED WITH SOD2 GENE POLYMORPHISM.
- Author
-
Nagesh, Chaganti, Kumar, Anil, Kumar, Srawan, and Nigam, Nilam
- Subjects
- *
THERAPEUTIC use of vitamin C , *HYPOGLYCEMIC agents , *TYPE 2 diabetes treatment - Abstract
Diabetes is a metabolic disorder; affect the metabolism of carbohydrates, proteins and lipids. Superoxide dismutase (SOD) is a major antioxidant scavenging enzyme it helps in removal of superoxide. Polymorphism of SOD2 gene may affect the scavenging effect of SOD enzyme which results in rise of oxidative stress in Type-II DM. The present study has been designed to study the effect of vitamin-C as add on therapy with antidiabetic drugs in type-2 diabetes mellitus patients associated with SOD2 gene polymorphism. A total of 64 type-II diabetes mellitus patients associated with SOD2 gene polymorphism (Ala16Val) were enrolled in present study and divided in to two groups i.e. Group A& B. There are three genotypes in each such as CC, CT& TT. Group-A& B patients were treated with metformin1000mg/day+ teneligliptin-20mg/day and metformin 1000mg/day+ teneligliptin 20mg/day+ vitamin C-1000mg/day respectively for 6 months. Glycemic control and oxidative stress was compared before and after 6 months of treatment in both groups. SPSS software was used to analyze the data. All the genotypes of both the groups had shown significant glycemic control (p<0.05). Significant reduction of TAC and elevation of MDA level was found in CT, TT genotype and CC, CT & TT genotype of group-A patients respectively (p<0.05). CC and CT genotype of group-B patients had shown significant elevation of TAC and reduction of MDA level as compared to baseline values (p<0.05). Good glycemic control and reduction of oxidative stress can be achieved with supplementation of vitamin-C along with antidiabetic drugs. [ABSTRACT FROM AUTHOR]
- Published
- 2021
26. STUDY ON EFFECT OF VITAMIN-C AS ADD ON THERAPY WITH ANTIDIABETIC DRUGS IN NEWLY DIAGNOSED TYPE-2 DIABETES MELLITUS PATIENTS.
- Author
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Nagesh, Chaganti, Nigam, Nilam, Kumar, Srawan, and Kumar, Anil
- Subjects
- *
HYPOGLYCEMIC agents , *TYPE 2 diabetes , *HYPERGLYCEMIA , *OXIDATIVE stress , *DIABETES complications , *VITAMIN C - Abstract
Diabetes mellitus is a metabolic disorder characterized by hyperglycemia, usually associated with oxidative stress. Beside hyperglycemia, oxidative stress also plays a major role in diabetes and its complications such as diabetic neuropathy, nephropathy and retinopathy. Reduction of oxidative stress may have better outcome in diabetic patients. Therefore the present research was designed to study the effect of oral hypoglycemic agents (OHA) and vitamin-C on oxidative stress and lipid profile along with glycemic control. A total of 94 type-II diabetes mellitus patients were taken in open label, prospective study and divided them in to four groups, Group-A (Glimepiride), Group-B (Glimepiride + Vitamin-C), Group-C (Metformin + Voglibose) and Group-D (Metformin+ Voglibose+ Vitamin-C). Glycemic control, lipid profile and oxidative stress were compared before and after 3 months of treatment in all the 4 groups. Data was analyzed By using SPSS Software. At the end of 3 months, significant glycemic control was found in all 4 groups (p<0.001) but only Group-B and Group-D showed significant reduction of oxidative stress (p<0.001). Marked lipid control was noticed in Group-B, Group-C and Group-D. Supplementation of vitamin-C along with OHA therapy has additional effect on glycemic control and lipid level and being an antioxidant, Vitamin-C reduces the oxidative stress in diabetes mellitus patients. [ABSTRACT FROM AUTHOR]
- Published
- 2021
27. Functional hard-boiled candy formulation employing Plackett Burman design.
- Author
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H., Veeranna, S., Dinta, P., Juvvi, B. S., Roopa, K., Venkatesh Murthy, and R., Chetana
- Subjects
POLYPHENOLS ,VITAMIN C ,ANTIOXIDANTS ,SUGAR ,GLUCOSE - Abstract
Plackett-Burman experimental design was employed as a screening experiment with five variables for preparation of hard boiled candy. The effect of varying the levels of hard-boiled candy ingredients such as ratio of liquid glucose (30-40%): sugar (60-70%) addition of nutraceuticals namely green tea extract (0.5-1%) and Amla powder (0.5-1%) along with salt (0.1 to 0.2%) on the physicochemical responses such as hardness, colour, total polyphenol, antioxidant radical scavenging, vitamin C and overall quality were studied. Results indicated that a formulation of: sugar 70%, liquid glucose 30%, amla powder and green tea extract 1% and salt 0.1% was considered as the optimum for obtaining a hard-boiled candy (HBC) with highest overall quality. The present study showed that the hard-boiled candy with added green tea extract and Amla powder were natural sources of polyphenols, vitamin C and antioxidants. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
28. Determination of morphological and phytochemical composion of different vegetables
- Author
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Khandaker, Tasmina, Hasan, Mehedi, Mannan, Abdul, Haque, Rezaul, and Hossain, Muhammad Sarwar
- Published
- 2018
- Full Text
- View/download PDF
29. Effect of mineral and vitamin C mix on growth performance and blood corticosterone concentrations in heat-stressed broilers.
- Author
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Saiz del Barrio, A., Mansilla, W. D., Navarro-Villa, A., Mica, J. H., Smeets, J. H., den Hartog, L. A., and García-Ruiz, A. I.
- Subjects
- *
VITAMIN C , *BROILER chickens , *DRINKING water , *POULTRY industry , *SERUM , *VITAMINS - Abstract
Heat stress is a major problem in the poultry industry, especially during summer months and when birds are raised under high-density conditions. Previous studies have reported that vitamin C or electrolyte supplementation could palliate the effects of heat stress in broiler chickens. The present study evaluated the effect of a mineral and vitamin mix (AHS) added to drinking water on the performance of broiler chickens. In total, 1,824 one-day-old birds were randomly allocated to 48 pens. Maximum animal density was 26.5 kg/m2. The control group received no additive; AHS-1 and -2 groups received the AHS mix at a concentration of 1 and 2 kg/1,000 L in drinking water, respectively; and the Vit-C group received vitamin C in drinking water at 200 g/1,000 L. All birds were fed the same diets based on a 3-phase feeding program; feed and water were given on ad libitum basis. To mimic heat stress conditions, temperature in the barn was raised to 35 C from 08:00 to 14:00 h each day. For the overall growing period (0 to 35 D), adding AHS to drinking water increased final BW, ADG, and ADFI linearly (PLinear, 0.05); FCR was decreased linearly with AHS supplementation (PLinear, 0.05). Final BW, ADG, and FCR for the Vit-C group were intermediate between AHS-2 and the control groups (P . 0.10). No significant effect on mortality were found (8.77%; P . 0.10). Relative to control, all the treatments tested reduced (P, 0.05) corticosterone concentration in blood serum. In conclusion, the combined use of supplementary levels of minerals and vitamins could alleviate the effects of heat stress on broilers chickens. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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- View/download PDF
30. Multicomponent decellularized extracellular matrix of caprine small intestine submucosa based bioactive hydrogel promoting full-thickness burn wound healing in rabbits.
- Author
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Singh, Hemant, Hassan, Shabir, Nabi, Showket Ul, Mishra, Narayan Chandra, Dhanka, Mukesh, Purohit, Shiv Dutt, Ganai, Nazir Ahmad, Bhaskar, Rakesh, Han, Sung Soo, Qurashi, Ahsan Ul Haq, and Bashir, Showkeen Muzamil
- Subjects
- *
SMALL intestine , *EXTRACELLULAR matrix , *HEALING , *THERMORESPONSIVE polymers , *WOUND healing , *POROUS materials , *ZINC oxide - Abstract
Effective treatment for full-thickness burn wounds has remained challenging for clinicians. Among various strategies, extracellular gel-based dressing materials have gained attention to promote effective and rapid wound healing. These gel-based materials are porous and have antioxidant, antibacterial, hydrophilic, biodegradation, and biocompatible properties and hence can be used to alleviate burn wound healing. In concurrence with these findings, the present study evaluates thermo-responsive and self-assembled decellularized extracellular matrix (ECM) of caprine small intestine submucosa (DG-SIS) gel-based dressing material for burn wound healing. To expedite healing and efficiently tackle excessive free radicals and bioburden at the burn wound site, DG-SIS gel is fortified with antibacterial components (zinc oxide nanoparticles; ZnO) and a potent antioxidant agent (Vitamin-C;Vt-C). ZnO- and Vt-C-enriched DG-SIS (DG-SIS/ZnO/Vt-C) gels significantly increased the antioxidant and antibacterial activity of the therapeutic hydrogel. Additionally, the fabricated DG-SIS/ZnO/Vt-C bioactive gel resulted in significant full-thickness burn wound contraction (97.75 % in 14 days), a lower inflammatory effect, and enhanced angiogenesis with the highest collagen synthesis (1.22 μg/mg in 14 days) at the wound site. The outcomes from this study demonstrate a synergistic effect of ZnO/Vt-C in the bioactive gel as an effective and inexpensive therapeutic approach for full-thickness burn wound treatment. [Display omitted] [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
31. Morphological and biochemical diversity in Rosa species
- Author
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Sadiye Peral Eyduran, Meleksen Akin, Sezai Ercisli, and Emrah Zeybekoglu
- Subjects
morphological ,Genotypes ,biochemical diversity ,Phenolic-Compounds ,Wild ,Vitamin-C ,Antioxidant Capacity ,Plant Science ,Horticulture ,L ,flower ,Fruits ,Organic-Acids ,Rosa canina ,Sect. Caninae ,Rosa dumalis ,Spp - Abstract
The Rosa L. is one of the widely grown plants in the world and its flowers and fruits has been used in different parts of the world for centuries. Wild grown Rosa plants is one of the most important element of the natural landscape and used as rootstock for roses for centuries as well. In this study the main flower, shrub and fruit characteristics of a large number of Rosa canina L. and Rosa dumalis Bechst. genotypes naturally found in Ardahan province of Turkey has been studied. All plants found very health conditions and indicated their strong defense mechanism of the genera to harsh abiotic and biotic conditions. The majority of genotypes had attractive flowers. The genotypes exhibited fruit mass between 2.81 g to 4.60 g. SSC (soluble solid content), vitamin C, total phenolic, total flavonoid, total carotenoid, and total anthocyanin content of the genotypes ranged from 15.8–20.6%, 502–714 mg per 100 g FW (fresh weight), 405–507 mg gallic acid equivalent per 100 g FW, 1.02–2.00 mg per g FW, 8.40–13.30 mg per g FW and 4.35–6.98 mg cyanidin-3-glucoside equivalent per liter, respectively. Antioxidant activity was determined between 22.3–30.9 mg ascorbic acid equivalent per g fresh weight. Chlorogenic acid was the major phenolic acids in fruits of Rosa ecotypes. Our results indicated promising perspectives for usage of R. canina and R. dumalis fresh fruits studied with considerable levels of bioactive compounds.
- Published
- 2022
32. Method Development and Validation for Simultaneous Estimation of LGlutathione and Vitamin-C in Effervescent Tablet by RP-HPLC.
- Author
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R., Alhat Babita and V., Kokate Shekhar
- Subjects
RF values (Chromatography) - Abstract
A simple, linear, precise, accurate and sensitive RP-HPLC method has been developed and validated for estimation of L-Glutathione and Vitamin-C in effervescent tablet. Isocratic elution at a flow rate of 1 ml/min tried on C18 column (ODS) 250 mm × 4.6 mm, 5μM on using a mobile phase consisting mixture of Acetonitrile:Methanol (6:4 v/v). The retention time of L-Glutathione was 7.208 minutes and Vitamin-C 3.825 minutes. The eluent was detected at 255 nm. Linearity was observed in the concentration range of 30-70μg/ml for L-Glutathione and 80-120μg/ml for Vitamin-C. The method is validated as per ICH guidelines. The proposed method can be successfully applied for estimation of L-Glutathione and Vitamin-C in effervescent tablet. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
33. Physicochemical Properties, Antioxidant Activities, and Chemical Compositions of Extracts Obtained from Rosa pimpinellifolia L. Flesh and Seeds Using Different Methods and Solvents
- Author
-
Melek Zor, Memnune Şengül, Elif Feyza Topdaş, Bilal Yılmaz, and Belirlenecek
- Subjects
Anthocyanin ,Capacity ,Ethanol ,Chemical composition ,Water ,Extraction ,Vitamin-C ,Horticulture ,Canina L ,Fruits ,Rosa pimpinellifolia L ,Mixtures ,Ultrasound ,Acid ,Phenolics ,Heme Oxygenase-1 - Abstract
In this study, extracts were prepared from Rosa pimpinellifolia L. (RP) fruit flesh and seeds using different solvents by ultrasonic and classical extraction methods. Various physical and chemical properties of the fruit flesh, seeds, and their extracts were determined. The dry matter content; total soluble solids content; total sugar content; ash; protein; pH, L*, a*, b*, and increment E values; vitamin C; total phenolic content (TPC); total monomeric anthocyanin content (TMC); DPPH center dot and ABTS(center dot+) radical scavenging activities; and chemical compound and mineral substance composition of RP flesh and seeds were determined. A total of 113 chemical compounds were identified in the fruit flesh, seeds, and different extracts. It was revealed that aldehydes were the most abundant chemical compound group in the fruit flesh of RP (21.90%), while acids were the most abundant chemical compound group in its seeds (70.23%). The highest potassium content was found in RP flesh and seeds. The amount of mineral substances generally decreased in the extracts compared to the fruit flesh and seeds. Statistically, the effect of the part of the fruit and extraction method on the pH, L*, a*, b*, and increment E values, vitamin C, TMC, and ABTS(center dot+) radical scavenging activity was at the p < 0.01 level, while the effect of solvent type on pH, a* and increment E values, vitamin C, TPC, TMC, DPPH center dot, and ABTS(center dot+) radical scavenging activity was significant (p < 0.01). In terms of TMC and TPC, the most effective extraction method was the ultrasonic extraction method., Ataturk University Research Foundation [:401/2015], The authors express their gratitude to Ataturk University Research Foundation for financial and technical support (BAP-project no:401/2015).
- Published
- 2022
34. Critical stages for post-harvest losses and nutrition outcomes in the value chains of bush beans and nightshade in Uganda
- Author
-
Klara Strecker, Verena Bitzer, Froukje Kruijssen, Technology, Innovation & Society, Maastricht Sustainability Institute, and RS: GSBE MSI
- Subjects
AFRICA ,SECURITY ,post-harvest losses ,VITAMIN-C ,nutrition-sensitive ,Bush beans ,loss hotspots ,WASTE ,food and beverages ,Uganda, nutrition-sensitive ,Development ,PHENOLIC-COMPOUNDS ,LEAFY VEGETABLES ,COOKING ,Loss hotpots ,Value chains ,QUALITY ,Uganda ,PHASEOLUS-VULGARIS L ,african nightshade ,Agronomy and Crop Science ,FOOD LOSS ,Food Science - Abstract
The reduction of post-harvest losses (PHLs) has been identified as a key pathway to food and nutrition security in sub-Saharan Africa. However, despite policy prioritisation, knowledge about the severity of PHLs remains scant, especially when it comes to nutrient-dense crops such as African nightshade and bush beans. Therefore, this paper identifies loss hotspots, causes and effects throughout the value chains of nightshade and bush beans in eastern Uganda. Primary data collected following the Informal Food Loss Assessment Method, combined with small-scale load tracking and secondary data, allows for an analysis of physical, economic, quality, and nutritional losses throughout the value chains of both crops. Results show that in the bush bean value chain, severe physical and quality losses occur during post-harvest handling by farmers, leading to high economic losses at this stage of the chain. Nutritional losses are not expected to be significant in the bush bean value chain. By contrast, due to the shortness of the nightshade value chain, where produce is moved from harvest to consumption within one or two days, physical losses in most parts of the chain are relatively minor. Only at consumption stage, high physical losses occur. This is also the stage where economic losses and potential nutritional losses are most pronounced. The results of this study offer a deeper understanding of the value chain dynamics of bush beans and nightshade, including underlying gender relations, and identify concrete loss hotspots, upon which further research and practical interventions can build.
- Published
- 2022
35. Effect of Occupational Exposure on WBC Count and Oxidative Stress in Rice Mill Workers
- Author
-
Praveen S. Patil, Manjunath Aithal, Kusal K. Das, and Vijaykumar M. Pujari
- Subjects
Rice mill workers ,White Blood Cell Counts ,MDA ,Nitric Oxide ,Vitamin-C ,Oxidative Stress ,Medicine ,Medicine (General) ,R5-920 - Abstract
Background: There are several occupations where individuals are exposed to high concentration of dust particles. The exposed dust can be organic, inorganic, bacterial toxins, viruses or lipopolysaccharides. Exposure to rice husk causes activation of eosinophils and inammation reactions. Cardiovascular diseases are associated with increased lipid peroxidation and decrease in levels of antioxidants. Aim & Objectives: Aim of the study was to evaluate the effect of occupational exposure on haematological and biochemical parameters of rice mill workers by analyzing blood cell Counts, Malondialdehyde (MDA), Nitric Oxide (NO) and Ascorbic acid. Material and Methods: A total of 134 eligible individuals who had been exposed to dust in rice mills for more than 5 years were included in the study group where as another 134 unexposed individuals constituted control group. Estimation of serum MDA, serum NO and plasma Ascorbic acid were done by using semiautoanalyzer. Results: There was no signicant difference between Total Leucocyte Count of exposed and unexposed individuals. Lymphocyte, monocyte, eosinophil and basophil counts are signicantly increased in exposed individuals. Serum levels of MDA, NO and Ascorbic acid are also signicantly increased in exposed group compared with control group. Conclusion: The ndings of our study clearly indicate that the rice mill workers are under high level of dust exposure which has deleterious effects on their blood and tissues. Increased MDA, NO and decreased Vitamin-C are probably due to high oxidative stress.
- Published
- 2016
36. How much do process parameters affect the residual quality attributes of dried fruits and vegetables for convective drying?
- Author
-
Alex Martynenko, Daniel I. Onwude, Thijs Defraeye, Donato Rubinetti, Seraina Schudel, Jörg Schemminger, and Kamran Iranshahi
- Subjects
Technology ,Engineering, Chemical ,Dried fruit ,030309 nutrition & dietetics ,General Chemical Engineering ,Residual ,7. Clean energy ,Biochemistry ,Benchmarking drying methods ,ANTIOXIDANT CAPACITY ,03 medical and health sciences ,Engineering ,Plant-based food ,0404 agricultural biotechnology ,Relative humidity ,Plant-based foods ,Vitamin C ,Food science ,Hot-air drying ,Carotenoid ,KINETICS ,2. Zero hunger ,chemistry.chemical_classification ,0303 health sciences ,Science & Technology ,FLESHED SWEET-POTATO ,VITAMIN-C ,BETA-CAROTENE ,food and beverages ,04 agricultural and veterinary sciences ,Micronutrient ,Carotenoids ,040401 food science ,L ,SENSORY QUALITY ,Food quality ,Biotechnology & Applied Microbiology ,chemistry ,Food Science & Technology ,Scientific method ,HOT-AIR ,BIOACTIVE COMPOUNDS ,MICROWAVE-VACUUM ,Essential nutrient ,Life Sciences & Biomedicine ,Food Science ,Biotechnology - Abstract
Drying processes reduce the amount of available essential nutrients in dried plant-based foods to a large extent compared to fresh produce. This reduction is much larger than the differences in the final quality of products dried using various processing parameters and, in most cases, different drying methods. This aspect is, however, rarely highlighted. Here, the extent to which different convective drying methods reduce the nutritional content, namely vitamin C, carotenoids and phenolic content of dried fruits and vegetables, compared to fresh produce was quantified using literature data. The impact of different drying process parameters, such as air temperature, airspeed and relative humidity on the nutritional content of fruits and vegetables were compared. Results revealed that convective drying reduced the amount of vitamin C, carotenoids and the phenolic content of dried fruits and vegetables by up to 70%. The reduction in the residual vitamin C and carotenoid content of dried fruits and vegetables due to differences in air temperature (∼40%), airspeed (∼20%), and relative humidity (∼20%) is much less than the nutritional quality losses due to the drying process. The residual vitamin C, carotenoids and phenolic contents in convective-dried fruits and vegetables are ∼30% less than those in freeze-dried products. This study confirms that little absolute gains in nutritional quality can be achieved by opting for either an alternative drying method or optimizing processing parameters since the drying process already results in a low nutritional quality of dried products. As such, the remaining micronutrient concentration of dried products should not necessarily be a decisive criterion in selecting the most appropriate drying method or processing parameters for fruits and vegetables. Instead, other key performance indicators such as the drying time, energy consumption, or sensory properties such as color, texture, and rehydration capacity could eventually have a greater influence on the decision-making process., Food and Bioproducts Processing, 131, ISSN:0960-3085, ISSN:1744-3571
- Published
- 2022
37. Vitamin-C Retention in Commercially Available Mung Bean (Vigna radiate) Sprouts.
- Author
-
Prabha, Shashi and Goomer, Sangeeta
- Subjects
VITAMIN C ,MUNG bean ,SHELF-life dating of food ,FOOD quality ,SPROUTS ,ANTIOXIDANT analysis - Published
- 2018
- Full Text
- View/download PDF
38. A fluorogenic probe for in vitro and in vivo detection of biothiols and vitamin-C with an in-depth mechanistic understanding.
- Author
-
Biswas, Suprakash, Pal, Kaushik, Kumar, Prashant, and Koner, Apurba L.
- Subjects
- *
FLUORESCENT probes , *VITAMIN C , *THIOLS , *HOMOCYSTEINE , *GLUTATHIONE - Abstract
Thiol-containing biomolecules like Cysteine (Cys), Homocysteine (Hcy), and reduced Glutathione (rGSH) are involved in various biological processes. In addition, vitamin-C (ascorbic acid, AA), being a common antioxidant, plays a significant role in various biological reactions. In vivo detection of these biologically relevant small molecules by using a fluorogenic probe provides a pivotal tool to unravel real-time biomolecular dynamics. The development of a cell-permeable, water-soluble and non-toxic fluorogenic molecules are always advantageous for their spatiotemporal sensitivity and accuracy. Although the application of fluorogenic probes is widely studied, the deeper investigation of underlying mechanisms has remained curtained. In this report, a fluorogenic probe, 4-azido-7-nitrobenzo-2-oxa-1,3-diazole (NBD-N 3 ), has been developed for detection of AA, Cys, Hcy among a range of biologically relevant molecules including rGSH with an extensive mechanistic investigation. The weakly fluorescent NBD-N 3 transforms into a highly fluorescent NBD-NH 2 with the action of AA by redox mechanism. However, Cys, and Hcy convert NBD-N 3 into highly fluorescent NBD-NHR (R = Cys/Hcy) via aromatic nucleophilic substitution (S N Ar) followed by S-N rearrangement. The reaction mechanisms for the fluorogenic response have also been authenticated by UV–vis., fluorescence, NMR spectroscopy and mass spectrometry. Furthermore, the probe has also been employed to validate in vitro and in vivo monitoring of biothiols and AA in mammalian cancer cells and in multicellular living Caenorhabditis elegans . [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
39. Improving the oxidative stability of virgin olive oil using microformulated vitamin‐C
- Author
-
Mahmoud Osanloo, Narjes Jamali, and Amene Nematollahi
- Subjects
Acid value ,Chromatography ,Antioxidant ,Vitamin C ,Nutrition. Foods and food supply ,medicine.medical_treatment ,Ascorbic acid ,microemulsion ,olive oil ,Peroxide ,chemistry.chemical_compound ,chemistry ,vitamin‐C ,medicine ,Microemulsion ,ascorbic acid ,TX341-641 ,Peroxide value ,Incubation ,Original Research ,Food Science - Abstract
This study aims to improve the oxidative stability of olive oil using microformulated vitamin‐C (Vit‐C). The microemulsion containing 10,000 µg/ml Vit‐C with a droplet size of 1,000 ± 68 nm was first prepared. Free radical scavenging of olive oil and olive oil containing blank microemulsion, different amounts of formulated Vit‐C (100–500 µg/ml), and TBHQ (100 and 200 µg/ml as a standard antioxidant) was around 90% during 21 days of incubation at 60°C. The oxidative stability of the mentioned samples during incubation was investigated using the rancimat test, and their quality criteria analysis was studied by peroxide and the acid values. Results showed that the sample's acid value containing 500 µg/ml of Vit‐C did not show significant differences (p, The clear stable microemulsion of vitamin‐C was prepared using span 80, tween 80, and sesame oil. Samples containing 500 µg/ml of formulated vitamin‐C was effective in controlling virgin olive oil stability. Microemulsion of vitamin‐C could be used as a natural antioxidant in the oil industry instead of harmful synthetic TBHQ.
- Published
- 2021
40. Drying characteristics and some quality parameters of whole jujube (Zizyphus jujuba Mill.) during hot air drying
- Author
-
Raci Ekinci and Begüm Tepe
- Subjects
0106 biological sciences ,Degradation kinetics ,Vitamin-C ,total phenol content ,01 natural sciences ,Degradation Kinetics ,0404 agricultural biotechnology ,Drying time ,010608 biotechnology ,Slices ,Bioactive Compounds ,Air drying ,Food science ,drying kinetics ,water-soluble vitamins ,Ascorbic-Acid ,Chemistry ,Zizyphus jujuba ,Antioxidant Capacity ,04 agricultural and veterinary sciences ,040401 food science ,Antioxidant capacity ,Physicochemical Properties ,Fruit ,Degradation (geology) ,Nutritional Composition ,Attributes ,Food Science - Abstract
Drying kinetics, water-soluble vitamins, total phenolic content (TPC), antioxidant capacity (AC) of the jujube fruits dried at 50, 60, and 70 degrees C, and degradation kinetics of the quality parameters were investigated. The models fitted to drying were determined as Page at 50 and 70 degrees C, Parabolic at 60 degrees C. Increment in the drying temperature increased the drying rate and decreased the drying time. Water-soluble vitamins, TPC, and AC were significantly reduced by the drying process. Degradation of water-soluble vitamins increased with the drying temperature, although TPC and AC were not significantly affected by temperature. Thermal degradations of quality parameters were fitted to first-order kinetic.
- Published
- 2021
41. The role of antioxidants in attenuation of Caenorhabditis elegans lethality on exposure to TiO2 and ZnO nanoparticles.
- Author
-
Sonane, Madhavi, Moin, Nida, and Satish, Aruna
- Subjects
- *
ANTIOXIDANTS , *CAENORHABDITIS elegans , *ZINC oxide , *NANOPARTICLES , *ATTENUATION (Physics) , *REACTIVE oxygen species - Abstract
The exponential increase in the usage of engineered nanoparticles (ENPs) has raised global concerns due to their potential toxicity and environmental impacts. Nano-TiO 2 and nano-ZnO have been extensively used in various applications. Thus, there is a need for determining the toxic potentials of ENPs as well as, to develop the possible attenuation method for ENPs toxicity. Both in the in vitro and in vivo systems, exposure to the majority of ENPs have shown R eactive O xygen S pecies (ROS) generation, which leads to oxidative stress mediated inflammation, genotoxicity, and cytotoxicity. Hence, with the rationale of determining easy and economical protection against ENPs exposure, the amelioration effect of the antioxidants (curcumin and vitamin-C) against the nano-TiO 2 and nano-ZnO induced ROS and lethality were investigated in Caenorhabditis elegans . We not only employed pre-treatment and along with treatment approach, but also determined the effect of antioxidants at different time points of treatment. Our study revealed that both the antioxidants efficiently ameliorate nanoparticles induced ROS as well as lethality in worms. Further, the pretreatment approach was more effective than the along with treatment. Therefore, our study indicates the possibility of evading the nanotoxicity by incorporating curcumin and vitamin-C in everyday diet. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
42. Effects of temperature and storage on the antioxidant potential, polyphenols and Vitamin-C contents of azadirachta indica leave aqueous extract.
- Author
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ullah, Shafqat, khan, Rasool, Hussain, Arshad, Ullah, Asad, and Khaliq-ur-Rehman
- Abstract
The aim of the study was to investigate the effects of effects of storage and temperature on the antioxidant potential, vitamin-C contents, total as well as selected individual phenolic acids and flavonoids of fresh aqueous leaves extract of Azadirachta Indica. The antioxidant activity of Azadirachta Indica leaves aqueous extract was determined by scavenging of DPPH free radical, while the phenolic compounds and vitamin-C contents by HPLC method. The analyses were carried out on crude extract of fresh leaves and after storage time of 1, 2 and 3 month at temperature of 20, 30 and 50°C. Storage for longer duration and rise in temperature caused decreasing the phenolic acids and vitamin C contents as well as antioxidant potential. Vitamin C contents were decreased up to 91% upon storage for 3 months at 50°C, while the anti-oxidant potential was decreased 29 %. The effect of storage time and temperature on individual phenolic acid and flavonoids were also remarkable, except ferulic acid which increased upon storage and rise in temperature. [ABSTRACT FROM AUTHOR]
- Published
- 2017
43. Effect of Different Micronutrients on PlantGrowth, Yield and Flower Bud Quality of Broccoli (Brassica Oleracea Var. Italica).
- Author
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SINGH, GAJENDRA, SARVANAN, S., RAJAWAT, KULDEEP SINGH, RATHORE, JALAM SINGH, and SINGH, GURVINDER
- Subjects
TRACE elements ,BROCCOLI ,PLANT growth ,CROP yields ,BUDS ,FLOWERS - Abstract
A field experiment was conducted to study the "Effect of different micro nutrients on plant growth, yield and flower bud quality of broccoli (Brassica oleracea Var. Italica) cv. -- Green Bud" during rabi season of 2014-15 Research field, Department of Horticulture, Allahabad School of Agriculture, Sam Higgin bottom Institute of Agriculture, Technology and Sciences Allahabad. The experiment consists of 10 treatment viz, T
0 (control), T1 (B), T2 (Mo), T3 (Mn), T4 (B + Mo), T5 (B+ Mn +Zn), T6 (Mo +Mn), T7 (B +Mo +Mn +Zn), T8 (B +Zn), T9 (Zn) laid out in Randomized Block Design (RBD) with three replications. The micronutrients (B, Mo, Mn and Zn) were applied at the rate of 2 kg (B), 0.5 kg (Mo), 2.5 kg (Mn), 3 kg (Zn) per hectare significantly increased the plant height (51.30 cm), number of leaves(22.92), Plant spread (52.83 cm), diameter of bud or head (16.90 cm), average bud weight of per plant (303.69 gm), yield ha-1(121.48q), vitamin 'C' (93.92 mg), TSS (0 Brix) (8.37) content, Plant fresh weight (908.28 gm), dry plant matter(95.61 gm), root weight (45.02 gm) and dry weight(11.65 gm) were maximum in treatment T5 and lowest in T0 (control) under Allahabad agro climatic condition. [ABSTRACT FROM AUTHOR]- Published
- 2017
- Full Text
- View/download PDF
44. Influence of Vitamin-C on Phenothiazine Induced Extrapyramidal Symptoms in Rats.
- Author
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Nitin, M., Prasad, K., Dastapur, A., and Suryawanshi, S.
- Published
- 2011
45. Ascorbate oxidation activates systemic defence against root-knot nematode Meloidogyne graminicola in rice
- Author
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Bruno Verstraeten, Ashley Haeck, Michael Frei, Godelieve Gheysen, Shahid Siddique, Raimund Tenhaken, Kristof Demeestere, Richard Raj Singh, Tina Kyndt, Somnath S. Pokhare, and Adelahu Mekonene Tegene
- Subjects
HOMEOSTASIS ,Antioxidant ,Physiology ,medicine.medical_treatment ,HIGH LIGHT ,METABOLIC PATHWAYS ,Ascorbic Acid ,Plant Science ,Plant Roots ,Ascorbate oxidase ,chemistry.chemical_compound ,HYDROGEN-PEROXIDE ,JASMONIC ,medicine ,Animals ,systemic defence ,Root-knot nematode ,STRESS TOLERANCE ,Tylenchoidea ,Jasmonate ,rice Meloidogyne graminicola ,Plant Diseases ,reactive oxygen species ,VITAMIN-C ,REDOX ,hormones ,biology ,dehydroascorbic acid ,Jasmonic acid ,TOS17 RETROTRANSPOSON ,Biology and Life Sciences ,food and beverages ,Oryza ,Hydrogen Peroxide ,ABSCISIC-ACID ,medicine.disease ,biology.organism_classification ,Ascorbic acid ,SALICYLIC-ACID ,Nematode infection ,chemistry ,Biochemistry ,ACID ,ascorbic acid ,Dehydroascorbic acid ,Ethephon - Abstract
Ascorbic acid (AA) is the major antioxidant buffer produced in the shoot tissue of plants. Previous studies on root-knot nematode (RKN; Meloidogyne graminicola)-infected rice (Oryza sativa) plants showed differential expression of AA-recycling genes, although their functional role was unknown. Our results confirmed increased dehydroascorbate (DHA) levels in nematode-induced root galls, while AA mutants were significantly more susceptible to nematode infection. External applications of ascorbate oxidase (AO), DHA, or reduced AA, revealed systemic effects of ascorbate oxidation on rice defence versus RKN, associated with a primed accumulation of H2O2 upon nematode infection. To confirm and further investigate these systemic effects, a transcriptome analysis was done on roots of foliar AO-treated plants, revealing activation of the ethylene (ET) response and jasmonic acid (JA) biosynthesis pathways in roots, which was confirmed by hormone measurements. Activation of these pathways by methyl-JA, or ethephon treatment can complement the susceptibility phenotype of the rice Vitamin C (vtc1) mutant. Experiments on the jasmonate signalling (jar1) mutant or using chemical JA/ET inhibitors confirm that the effects of ascorbate oxidation are dependent on both the JA and ET pathways. Collectively, our data reveal a novel pathway in which ascorbate oxidation induces systemic defence against RKNs.
- Published
- 2020
46. GDP-Mannose 3,5-Epimerase: A View on Structure, Mechanism, and Industrial Potential
- Author
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Koen Beerens, Ophelia Gevaert, and Tom Desmet
- Subjects
NDP-sugar active SDR (NS-SDR) ,QH301-705.5 ,CARBOHYDRATE EPIMERASES ,Review ,L-sugar ,Biochemistry, Genetics and Molecular Biology (miscellaneous) ,Biochemistry ,L-GULOSE ,NATURAL-PRODUCT ,Molecular Biosciences ,Biology (General) ,Molecular Biology ,DE-NOVO BIOSYNTHESIS ,SUGAR BIOSYNTHESIS ,VITAMIN-C ,epimerase ,GDP-mannose ,short-chain dehydrogenase ,Biology and Life Sciences ,DISACCHARIDE MOIETY ,ENZYMATIC GLYCOSYLATION ,L-GALACTOSE EPIMERASE ,ASCORBIC-ACID ,short-chain dehydrogenase/reductase (SDR) ,reductase (SDR) ,NS-SDR - Abstract
GDP-mannose 3,5-epimerase (GM35E, GME) belongs to the short-chain dehydrogenase/reductase (SDR) protein superfamily and catalyses the conversion of GDP-d-mannose towards GDP-l-galactose. Although the overall reaction seems relatively simple (a double epimerization), the enzyme needs to orchestrate a complex set of chemical reactions, with no less than 6 catalysis steps (oxidation, 2x deprotonation, 2x protonation and reduction), to perform the double epimerization of GDP-mannose to GDP-l-galactose. The enzyme is involved in the biosynthesis of vitamin C in plants and lipopolysaccharide synthesis in bacteria. In this review, we provide a clear overview of these interesting epimerases, including the latest findings such as the recently characterized bacterial and thermostable GM35E representative and its mechanism revision but also focus on their industrial potential in rare sugar synthesis and glycorandomization.
- Published
- 2022
47. IMPACT OF AIR TEMPERATURE ON DRYING CHARACTERISTICS AND SOME BIOACTIVE PROPERTIES OF KIWI FRUIT SLICES
- Author
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Ayten Ekinci, Fadime Tepe Begüm, and Tolga Tepe Kağan
- Subjects
drying kinetics ,Hot Air ,Ultrasound Pretreatment ,Chemistry ,General Chemical Engineering ,Kiwifruit Consumption ,Color ,Vitamin-C ,Antioxidant Capacity ,Horticulture ,Kinetics ,Physicochemical Properties ,Air temperature ,kiwifruit ,Kiwi fruit ,ascorbic acid ,Actinidia Arguta ,Total Phenolic Content - Abstract
Drying kinetics, ascorbic acid content (AAC), total phenolic content (TPC), and antioxidant capacity (AC) of kiwifruits at different temperatures (60 ?C, 70 ?C, and 80) were investigated. The drying rate and effective moisture diffusivity of kiwifruits were the highest at 80 ?C. Additionally, the Parabolic model best predicts the experimental moisture ratio at 60 ?C and 70 ?C, while the Page model described the drying curve at 80 ?C. On the other hand, the AAC, TPC, and AC of kiwifruits were significantly influenced by temperature. Degradation of AAC increased with the increment in temperature, while TPC and AC were higher at the higher temperature. The range of the AAC, TPC, and AC of fresh and dried fruits were 165.59?12.58-462.81?11.53 mg/100 g DW, 747.66?16.09-1846.87?15.52 mg/100 g GAE DW, and 0.283?0.15-1.903?0.15 mmol TE/100 g DW, respectively. The highest AAC, TPC, and AC losses were calculated as 64.22%, 59.43%, and 85.13%, respectively.
- Published
- 2022
48. Changes caused by different cooking methods in some physicochemical properties, antioxidant activity, and mineral composition of various vegetables
- Author
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Melek Zor, Memnune Sengul, İsa Arslan Karakütük, Arzu Odunkıran, and Belirlenecek
- Subjects
Health ,General Chemical Engineering ,Vitamin-C ,General Chemistry ,Domestic Cooking ,Food Science - Abstract
In this study, it is aimed to determine how different cooking processes (boiled (B), steamed (S), pressure boiled (PB), and pressure steamed (PS)) cause changes in various vegetables (potato, carrot, beet root, black carrot, celery, turnip, and sweet potato). The different process had a very significant effect (p < 0.01) on the L*, a*, b*, C*, H degrees, dry matter content, total soluble solids (TSS), ash content, pH, and titratable acidity values of vegetables. The process and vegetable kind were found to have a very significant effect (p < 0.01) on vitamin C and total phenolic content (TPC) of vegetables. It was revealed that the vitamin C was preserved better in S and PS than B vegetables. Except all PB, B, S sweet potato and cooked celery the TPC of other samples decreased at different rates (6.12%-88.30%) with cooking. It was found that the antioxidant activity (AA) of vegetables decreased with the process. It was determined that the mineral compositions of vegetables cooked with different methods were significantly different (p < 0.01) from raw vegetables, except for Fe. A positive correlation was detected between the samples' AA and color values. As a result, it was revealed that S vegetables preserved their color values better and the AA values of S vegetables were closest to raw vegetables. Novelty Impact Statement In terms of healthy nutrition, the differences in the characteristics of the food cooked with the heat treatment process in cooked foods has recently aroused an increasing interest. The study showed that physical and chemical properties, total phenolic content, and antioxidant properties were interrelated with different vegetables and different cooking methods. This was due to the different compositions and cooking techniques of vegetables, which determine the cell wall integrity and solubility of cell components during heat treatments. It was determined that the properties of steamed beetroot and black carrot were better preserved among different vegetables cooked with four different cooking methods (boiled, steamed, pressure boiled, and pressure steamed). The antioxidant activity of vegetables decreased with the treatment. Except for Fe, the mineral compositions of vegetables cooked by different methods were significantly different from raw vegetables. As a result, it was revealed that steamed vegetables preserved their color values better and the antioxidant activity values of steamed vegetables were closest to raw vegetables.
- Published
- 2022
49. Easy-to-Use HPLC Method to Measure Intracellular Ascorbic Acid Levels in Human Peripheral Blood Mononuclear Cells and in Plasma
- Author
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Gwendolyn van Gorkom, Birgit Gijsbers, Erik-Jan Ververs, Ahmed El Molla, Cindy Sarodnik, Celine Riess, Will Wodzig, Gerard Bos, Catharina Van Elssen, RS: GROW - R3 - Innovative Cancer Diagnostics & Therapy, Interne Geneeskunde, MUMC+: MA Hematologie (9), RS: NUTRIM - R3 - Respiratory & Age-related Health, and MUMC+: MA Med Staf Artsass Interne Geneeskunde (9)
- Subjects
VITAMIN-C ,Physiology ,Clinical Biochemistry ,COMPONENTS ,vitamin C ,Cell Biology ,RM1-950 ,LYMPHOCYTES ,peripheral blood mononuclear cells ,Biochemistry ,PERFORMANCE LIQUID-CHROMATOGRAPHY ,ascorbic acid ,Article ,Therapeutics. Pharmacology ,Molecular Biology - Abstract
Given the growing interest in ascorbic acid (AA), there is a need for a reliable and reproducible method to measure AA status in the human body. Serum AA concentrations do not correlate well with tissue levels, but AA levels in leukocytes do. However, a standard method for clinical application is lacking. This present study describes a method to measure AA in the peripheral blood mononuclear cells (PBMCs) with hydrophilic interaction liquid chromatography (HILIC). The method can also be used in plasma and other leukocyte subsets. The measurements of AA in PBMCs and plasma were performed with HPLC with HILIC separation and UV detection. The sample preparation involved the isolation of PBMCs and lysis and precipitation with acetonitrile. European Medicine Agency guidelines for bioanalytic method validation were followed for the evaluation. A highly precise execution of the method was found with intra- and inter-assay variations at a maximum of 7.8%. In 40 healthy donors, a mean intracellular AA concentration of 7.9 microgram/108 cells was found in PBMCs. A correlation between plasma and PBMC AA concentration was not present (r = 0.22). In conclusion, we developed a convenient, reliable, and reproducible method for the quantitative determination of AA within PBMCs and plasma from human blood.
- Published
- 2021
50. Combined metabolic activators decrease liver steatosis by activating mitochondrial metabolism in hamsters fed with a high-fat diet
- Author
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Universitat Rovira i Virgili, Yang H; Mayneris-Perxachs J; Boqué N; Del Bas JM; Arola L; Yuan M; Türkez H; Uhlén M; Borén J; Zhang C; Mardinoglu A; Caimari A, Universitat Rovira i Virgili, and Yang H; Mayneris-Perxachs J; Boqué N; Del Bas JM; Arola L; Yuan M; Türkez H; Uhlén M; Borén J; Zhang C; Mardinoglu A; Caimari A
- Abstract
Although the prevalence of non-alcoholic fatty liver disease (NAFLD) continues to increase, there is no effective treatment approved for this condition. We previously showed, in high-fat diet (HFD)-fed mice, that the supplementation of combined metabolic activators (CMA), including nicotinamide riboside (NAD+ precursor) and the potent glutathione precursors serine and N-acetyl-l-cysteine (NAC), significantly decreased fatty liver by promoting fat oxidation in mitochondria. Afterwards, in a one-day proof-of-concept human supplementation study, we observed that this CMA, including also L-carnitine tartrate (LCT), resulted in increased fatty acid oxidation and de novo glutathione synthesis. However, the underlying molecular mechanisms associated with sup-plementation of CMA have not been fully elucidated. Here, we demonstrated in hamsters that the chronic supplementation of this CMA (changing serine for betaine) at two doses significantly decreased hepatic steatosis. We further generated liver transcriptomics data and integrated these data using a liver-specific genome-scale metabolic model of liver tissue. We systemically determined the molecular changes after the supplementation of CMA and found that it activates mitochondria in the liver tissue by modulating global lipid, amino acid, antioxidant and folate metabolism. Our findings provide extra evidence about the beneficial effects of a treatment based on this CMA against NAFLD.
- Published
- 2021
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