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1.
Trop Anim Health Prod ; 56(2): 75, 2024 Feb 12.
Artigo em Inglês | MEDLINE | ID: mdl-38347390

RESUMO

The broiler industry plays a vital role in meeting the growing global demand for poultry meat. However, maintaining the health and well-being of broiler birds is crucial to ensure both optimal productivity and animal welfare. The increasing mortality rate of broiler chickens developed into an unavoidable issue that required attention. The major goal of this research is to monitor individual chickens for early disease identification, which will then allow for prompt isolation and treatment of sick birds, stopping the spread of pathogens and preserving the health of the flock as a whole. With an accuracy of 96%, the chosen model, YOLOv5s (You Only Look Once), performed the best. Based on their age, the algorithm was able to categorise broiler chickens. The model is converted to ONNX (Open Neural Network Exchange) format after custom training, and the centroid tracker is used for real-time tracking. After that, the output data is kept in a MySQL (My Structured Query Language) database for later use. The OpenCV (Open-Source Computer Vision Library) library is used to deploy this model on a local machine. This model seeks to identify the broiler chicken in the video frame, classify them, and maintain track of them using the tracker. Based on their age, the birds are divided into categories. Since most monitoring is required between 1 and 4 weeks of age, they are divided into four age groups. The potential application of this model is in the detection of temperature, weight, flock behaviour, etc.


Assuntos
Galinhas , Doenças das Aves Domésticas , Animais , Aves Domésticas , Inteligência Artificial , Fazendas , Criação de Animais Domésticos
2.
J Biol Chem ; 298(12): 102646, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36309090

RESUMO

Iron (Fe) sequestration is one of the most important strategies of the host to control the growth and survival of invading pathogens. Ferritin (Ft) plays a pivotal role in the sequestration mechanism of mammalian hosts by storing Fe. Recent evidence suggests that poly(rC)-binding proteins (PCBPs) act as chaperones for loading Fe into Ft. Incidentally, modulation of host PCBPs in respect to storing Fe in Ft during any infection remains unexplored. Among PCBPs, PCBP1 and PCBP2 are present in every cell type and involved in interacting with Ft for Fe loading. Leishmania donovani (LD) resides within macrophages during the mammalian stage of infection, causing life-threatening visceral leishmaniasis. Here, we reveal the ability of LD to cleave PCBP1 and PCBP2 in host monocytes/macrophages. LD cleaves PCBP1-FLAG into two fragments and PCBP2-FLAG into multiple fragments, thus affecting their interactions with Ft and resulting in decreased Fe loading into Ft. LD-derived culture supernatant or exosome-enriched fractions are also able to cleave PCBPs, suggesting involvement of a secreted protease of the parasite. Using an immune-depletion experiment and transgenic mutants, we confirmed the involvement of zinc-metalloprotease GP63 in cleaving PCBPs. We further revealed that by cleaving host PCBPs, Leishmania could inhibit Fe loading into Ft to accumulate available Fe for higher intracellular growth. This is the first report of a novel strategy adopted by a mammalian pathogen to interfere with Fe sequestration into Ft by cleaving chaperones for its survival advantage within the host.


Assuntos
Ferritinas , Ferro , Leishmania donovani , Leishmaniose Visceral , Chaperonas Moleculares , Animais , Ferritinas/metabolismo , Ferro/metabolismo , Leishmania donovani/metabolismo , Macrófagos/metabolismo , Chaperonas Moleculares/metabolismo , Proteínas de Ligação a DNA/metabolismo , Camundongos
3.
Indian J Endocrinol Metab ; 26(3): 239-244, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36248039

RESUMO

Background: Adiponectin and leptin play a major role in metabolic homeostasis. Adiponectin to Leptin ratio can be used as an indicator of insulin resistance and a marker of polycystic ovarian syndrome (PCOS). The study was planned to compare serum adiponectin, leptin, and adiponectin to leptin ratio in age and BMI matched women with and without PCOS and to find out the association of adiponectin to leptin ratio with Insulin resistance in these women. Methods: It was a cross-sectional study done in the Gynecology outpatient clinic in a tertiary care center. A total of 120 women, 60 with PCOS and 60 age and BMI matched women without PCOS, who presented in the clinic after the index cases were enrolled and tested for serum adiponectin, leptin, and insulin sensitivity. The main outcome measures were serum levels of adiponectin, leptin, adiponectin to leptin ratio, oral glucose tolerance test, serum insulin and HOMA-IR. Results: PCOS women had lower serum Adiponectin, higher serum Leptin level and lower Adiponectin to Leptin ratio compared to non PCOS women, 2.15 ± 3.07 ng/ml vs 10.7 ± 27.91 ng/ml, P < 0.0001; 24.25 ± 16.5 ng/ml vs 13.89 ± 11.19 ng/ml, P = 0.0003 and 0.15 ± 0.24 vs 3.03 ± 15.04, P < 0.0001, respectively. Plasma glucose 2 hours after 75 gm glucose and serum Insulin was significantly increased in PCOS women (108.78 ± 10.22 mg/dl vs 100.18 ± 4.89 mg/dl, P = 0.001 and 5.7 ± 9.53 mU/ml vs 3.02 ± 5.34 mU/ml, P = 0.02, respectively). The mean values of fasting plasma glucose and HOMA-IR were comparable in both groups, P = 0.145, P = 0.719, respectively. There was no significant association of A/L Ratio with BMI, plasma glucose 2 hours after 75 gm glucose, serum Insulin and HOMA-IR, in these women, r = -0.074, P = 0.5754; r = -0.203, P = 0.12; r = -0.018, P = 0.8915; and r = -0.041, P = 0.757, respectively. Conclusion: Adiponectin to leptin ratio is significantly reduced in women with PCOS but has no association with insulin resistance.

4.
Glob Health Sci Pract ; 9(Suppl 2): S195-S208, 2021 11 29.
Artigo em Inglês | MEDLINE | ID: mdl-34845043
5.
Molecules ; 26(21)2021 Oct 26.
Artigo em Inglês | MEDLINE | ID: mdl-34770864

RESUMO

Chrysin, a herbal bioactive molecule, exerts a plethora of pharmacological effects, including anti-oxidant, anti-inflammatory, neuroprotective, and anti-cancer. A growing body of evidence has highlighted the emerging role of chrysin in a variety of neurological disorders, including Alzheimer's and Parkinson's disease, epilepsy, multiple sclerosis, ischemic stroke, traumatic brain injury, and brain tumors. Based on the results of recent pre-clinical studies and evidence from studies in humans, this review is focused on the molecular mechanisms underlying the neuroprotective effects of chrysin in different neurological diseases. In addition, the potential challenges, and opportunities of chrysin's inclusion in the neurotherapeutics repertoire are critically discussed.


Assuntos
Antineoplásicos/uso terapêutico , Neoplasias Encefálicas/tratamento farmacológico , Flavonoides/uso terapêutico , Doenças do Sistema Nervoso/tratamento farmacológico , Fármacos Neuroprotetores/uso terapêutico , Animais , Antineoplásicos/química , Flavonoides/química , Humanos , Estrutura Molecular , Fármacos Neuroprotetores/química
6.
Materials (Basel) ; 14(19)2021 Oct 06.
Artigo em Inglês | MEDLINE | ID: mdl-34640252

RESUMO

Laser powder bed fusion (L-PBF) has attracted great interest in the aerospace and medical sectors because it can produce complex and lightweight parts with high accuracy. Austenitic stainless steel alloy 316 L is widely used in many applications due to its good mechanical properties and high corrosion resistance over a wide temperature range. In this study, L-PBF-processed 316 L was investigated for its suitability in aerospace applications at cryogenic service temperatures and the behavior at cryogenic temperature was compared with room temperature to understand the properties and microstructural changes within this temperature range. Tensile tests were performed at room temperature and at -196 °C to study the mechanical performance and phase changes. The microstructure and fracture surfaces were characterized using scanning electron microscopy, and the phases were analyzed by X-ray diffraction. The results showed a significant increase in the strength of 316 L at -196 °C, while its ductility remained at an acceptable level. The results indicated the formation of ε and α martensite during cryogenic testing, which explained the increase in strength. Nanoindentation revealed different hardness values, indicating the different mechanical properties of austenite (γ), strained austenite, body-centered cubic martensite (α), and hexagonal close-packed martensite (ε) formed during the tensile tests due to mechanical deformation.

7.
Metab Brain Dis ; 36(7): 1591-1626, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34387831

RESUMO

Neuroinflammation is one of the host defensive mechanisms through which the nervous system protects itself from pathogenic and or infectious insults. Moreover, neuroinflammation occurs as one of the most common pathological outcomes in various neurological disorders, makes it the promising target. The present review focuses on elaborating the recent advancement in understanding molecular mechanisms of neuroinflammation and its role in the etiopathogenesis of various neurological disorders, especially Alzheimer's disease (AD), Parkinson's disease (PD), and Epilepsy. Furthermore, the current status of anti-inflammatory agents in neurological diseases has been summarized in light of different preclinical and clinical studies. Finally, possible limitations and future directions for the effective use of anti-inflammatory agents in neurological disorders have been discussed.


Assuntos
Doenças do Sistema Nervoso/etiologia , Doenças Neuroinflamatórias/etiologia , Doença de Alzheimer/etiologia , Anti-Inflamatórios/uso terapêutico , Autofagia , Citocinas/fisiologia , Humanos , Inflamassomos/fisiologia , Monócitos/fisiologia , Doenças do Sistema Nervoso/tratamento farmacológico , Neuroglia/fisiologia , Doenças Neuroinflamatórias/complicações , Estresse Oxidativo , Linfócitos T/fisiologia
8.
Physiol Mol Biol Plants ; 26(11): 2319-2327, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33268932

RESUMO

Cotton (Gossypium hirsutum L.), a mercantile crop plant, is grown worldwide for fiber and seed oil. As with other economically important crops, cotton is bogged down with many biotic and abiotic stress factors. Towards this, genetic engineering offers numerous protocols to engineer plants for better resilience. However, recalcitrance of cotton to plant tissue culture has been the major constraint for successful in vitro regeneration. Hence, alternate methods that evade tissue culture regeneration have been envisaged. Non tissue culture-based in planta transformation strategies are in vogue due to amenability and ease in the generation of transgenic plants. In the present study, we demonstrate the utility of an in planta transformation protocol and establishment of a stringent selection agent-based screening for the identification of transgenics. The genotype independent nature of the protocol was validated in cotton cv. Pusa 8-6 using GFP. Preliminary transformation efficiency of 28% was achieved with a screening efficiency of 20% in the presence of hygromycin. The proof of T-DNA integration by various molecular and expression analysis in T1 and T2 generations proved that this technique can be employed to generate transgenic cotton.

9.
Front Plant Sci ; 11: 768, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32733492

RESUMO

Weeds burden plant growth as they compete for space, sunlight, and soil nutrients leading to 25-80% yield losses. Glyphosate [N-(phosphonomethyl)glycine] is a widely used broad spectrum non-selective herbicide that controls weeds by inhibiting 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) enzyme and interfering with the shikimate biosynthesis pathway. Cotton (Gossypium hirsutum L.) is one of the most important commercial crops grown worldwide for its fiber. We have developed herbicide tolerant transgenic cotton (cv. P8-6) by introgression of a codon-optimized and modified EPSPS gene (CP4-EPSPS) possessing an N-terminal chloroplast targeting peptide from Petunia hybrida. Because of the recalcitrant nature of cotton, a genotype-independent non-tissue culture-based apical meristem-targeted in planta transformation approach was used to develop transformants. Although in planta transformation methodologies are advantageous in developing a large number of transgenic plants, effective screening strategies are essential for initial identification of transformants. In the present study, the use of a two-level rigorous screening strategy identified 2.27% of T1 generation plants as tolerant to 800 and 1,500 mg/L of commercially available glyphosate (Roundup). Precise molecular characterization revealed stable integration, expression, and inheritance of CP4-EPSPS in advanced generations of the promising transgenic events. Further, superiority of selected transgenic plants in tolerating increasing levels of glyphosate (500-4,000 mg/L) was ascertained through reduced accumulation of shikimate. This report is the first of its kind where cotton transformants tolerating high levels of glyphosate (up to 4,000 mg/L) and accumulating low levels of shikimate have been identified. This study not only reiterated the genotype-independent nature of the transformation strategy but also reiterated the translational utility of the CP4-EPSPS gene in management of weeds.

10.
Appl Microbiol Biotechnol ; 104(17): 7603-7618, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32686005

RESUMO

The pigeonpea wild relative Cajanus platycarpus is resistant to Helicoverpa armigera, one of the major pests responsible for yield losses in Cajanus cajan. Deciphering the molecular mechanism underlying host plant resistance is pertinent to identify proteins that aid in the mitigation of the insect pest. The present study adopted comparative proteomics as a tool to interpret the resistance mechanism(s) in C. platycarpus vis-à-vis C. cajan during continued herbivory (up to 96 h). Over-representation analysis of the differentially expressed proteins implicated a multi-dimensional resistance response accomplished by both physical and chemical barriers in C. platycarpus. While the chemical basis for resistance was depicted by the upregulation of proteins playing a rate limiting role in the phenylpropanoid pathway, the physical basis was provided by the regulation of proteins involved in microtubule assembly and synthesis of lignins. Upregulation of proteins in the polyamine pathway indicated the role of metabolite conjugates to be negatively affecting herbivore growth. Reallocation of resources and diversion of metabolic flux to support the production of secondary metabolites could be the probable approach in the wild relative against herbivory. Our study provided deeper insights into the pod borer resistance mechanism in C. platycarpus for utility in crop improvement. KEY POINTS: • Pod borer resistance in Cajanus platycarpus is multi-dimensional. • Pod borer resistance has been arbitrated to cell wall rigidity and secondary metabolites. • Phenylpropanoid pathway derivatives apparently shaped the plant chemical defense against pod borer.


Assuntos
Cajanus , Mariposas , Animais , Herbivoria , Proteômica
11.
Plant Mol Biol ; 101(1-2): 163-182, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31273589

RESUMO

KEY MESSAGE: Deeper insights into the resistance response of Cajanus platycarpus were obtained based on comparative transcriptomics under Helicoverpa armigera infestation. Devastation by pod borer, Helicoverpa armigera is one of the major factors for stagnated productivity in Pigeonpea. Despite possessing a multitude of desirable traits including pod borer resistance, wild relatives of Cajanus spp. have remained under-utilized due to linkage drag and cross-incompatibility. Discovery and deployment of genes from them can provide means to tackle key pests like H. armigera. Transcriptomic differences between Cajanus platycarpus and Cajanus cajan during different time points (0, 18, 38, 96 h) of pod borer infestation were elucidated in this study. For the first ever time, we demonstrated captivating variations in their response; C. platycarpus apparently being reasonably agile with effectual transcriptomic reprogramming to deter the insect. Deeper insights into the differential response were obtained by identification of significant GO-terms related to herbivory followed by combined KEGG and ontology analyses. C. platycarpus portrayed a multilevel response with cardinal involvement of SAR, redox homeostasis and reconfiguration of primary metabolites leading to a comprehensive defense response. The credibility of RNA-seq analyses was ascertained by transient expression of selected putative insect resistance genes from C. platycarpus viz., chitinase (CHI4), Alpha-amylase/subtilisin inhibitor (IAAS) and Flavonoid 3_5 hydroxylase (C75A1) in Nicotiana benthamiana followed by efficacy analysis against H. armigera. qPCR validated results of the study provided innovative insights and useful leads for development of durable pod borer resistance.


Assuntos
Cajanus/genética , Resistência à Doença/genética , Mariposas/fisiologia , Doenças das Plantas/imunologia , Transcriptoma , Animais , Cajanus/imunologia , Cajanus/parasitologia , Perfilação da Expressão Gênica , Genômica , Herbivoria , Sequenciamento de Nucleotídeos em Larga Escala , Doenças das Plantas/parasitologia , Análise de Sequência de RNA
12.
PLoS One ; 14(7): e0218731, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31269083

RESUMO

Pigeonpea is a major source of dietary protein to the vegetarian population of the Indian sub-continent. Crop improvement to mitigate biotic and abiotic stresses for realization of its potential yield and bridging yield gap is the need of the hour. Availability of limited genomic resources in the cultivated germplasm, however, is a serious bottleneck towards successful molecular breeding for the development of superior genotypes in pigeonpea. In view of this, improvement of pigeonpea can be attempted through transgenesis or by exploiting genetic resources from its wild relatives. Pigeonpea wild relatives are known to be bestowed with agronomic traits of importance; discovery and deployment of genes from them can provide a lucrative option for crop improvement. Understanding molecular signatures of wild relatives would not only provide information about the mechanism behind desired traits but also enable us to extrapolate the information to cultivated pigeonpea. The present study deals with the characterization of leaf transcriptomes of Cajanus cajan and one of its wild relatives, Cajanus platycarpus. Illumina sequencing revealed 0.11 million transcripts in both the species with an annotation of 0.09 million (82%) transcripts using BLASTX. Comparative transcriptome analyses on the whole, divulged cues about the wild relative being vigilant and agile. Gene ontology and Mapman analysis depicted higher number of transcripts in the wild relative pertaining to signaling, transcription factors and stress responsive genes. Further, networking between the differentially expressed MapMan bins demonstrated conspicuous interactions between different bins through 535 nodes (512 Genes and 23 Pathways) and 1857 edges. The authenticity of RNA-seq analysis was confirmed by qRT-PCR. The information emanating from this study can provide valuable information and resource for future translational research including genome editing to alleviate varied stresses. Further, this learning can be a platform for in-depth investigations to decipher molecular mechanisms for mitigation of various stresses in the wild relative.


Assuntos
Cajanus/genética , Genômica , Transcriptoma/genética , Mapeamento Cromossômico , Genótipo , Sequenciamento de Nucleotídeos em Larga Escala , Repetições de Microssatélites/genética , Fenótipo , Polimorfismo de Nucleotídeo Único/genética
13.
Front Plant Sci ; 10: 217, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30941150

RESUMO

Among abiotic stresses, salt stress adversely affects growth and development in rice. Contrasting salt tolerant (CSR27), and salt sensitive (MI48) rice varieties provided information on an array of genes that may contribute for salt tolerance of rice. Earlier studies on transcriptome and proteome profiling led to the identification of salt stress-induced serine hydroxymethyltransferase-3 (SHMT3) gene. In the present study, the SHMT3 gene was isolated from salt-tolerant (CSR27) rice. OsSHMT3 exhibited salinity-stress induced accentuated and differential expression levels in different tissues of rice. OsSHMT3 was overexpressed in Escherichia coli and assayed for enzymatic activity and modeling protein structure. Further, Arabidopsis transgenic plants overexpressing OsSHMT3 exhibited tolerance toward salt stress. Comparative analyses of OsSHMT3 vis a vis wild type by ionomic, transcriptomic, and metabolic profiling, protein expression and analysis of various traits revealed a pivotal role of OsSHMT3 in conferring tolerance toward salt stress. The gene can further be used in developing gene-based markers for salt stress to be employed in marker assisted breeding programs. HIGHLIGHTS: - The study provides information on mechanistic details of serine hydroxymethyl transferase gene for its salt tolerance in rice.

14.
Bioinformation ; 14(3): 123-131, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29785071

RESUMO

Rice, a staple food crop, is often subjected to drought and salinity stresses thereby limiting its yield potential. Since there is a cross talk between these abiotic stresses, identification of common and/or overlapping regulatory elements is pivotal for generating rice cultivars that showed tolerance towards them. Analysis of the gene interaction network (GIN) facilitates identifying the role of individual genes and their interactions with others that constitute important molecular determinants in sensing and signaling cascade governing drought and/or salinity stresses. Identification of the various cis-regulatory elements of the genes constituting GIN is equally important. Here, in this study graphical Gaussian model (GGM) was used for generating GIN for an array of genes that were differentially regulated during salinity and/or drought stresses to contrasting rice cultivars (salt-tolerant [CSR11], salt-sensitive [VSR156], drought-tolerant [Vandana], drought-sensitive [IR64]). Whole genome transcriptom profiling by using microarray were employed in this study. Markov Chain completed co-expression analyses of differentially expressed genes using Dynamic Bayesian Network, Probabilistic Boolean Network and Steady State Analysis. A compact GIN was identified for commonly co-expressed genes during salinity and drought stresses with three major hubs constituted by Myb2 transcription factor (TF), phosphoglycerate kinase and heat shock protein (Hsp). The analysis suggested a pivotal role of these genes in salinity and/or drought stress responses. Further, analysis of cis-regulatory elements (CREs) of commonly differentially expressed genes during salinity and drought stresses revealed the presence of 20 different motifs.

15.
Am J Health Syst Pharm ; 74(21): 1791-1905, 2017 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-29070500

RESUMO

PURPOSE: Results of a survey assessing the extent and scope of collaborative drug therapy management (CDTM) in U.S. hospitals are presented. METHODS: A survey questionnaire was mailed to a national random sample of hospital pharmacies. Pharmacy directors provided data on CDTM activities; their views on support for CDTM, the financial and strategic impact of CDTM, and the effect of state regulations on CDTM practice were assessed using summative Likert-type scales. Logistic regression was performed to assess associations of respondent demographics and hospital characteristics with CDTM use. RESULTS: The usable response rate was 30.2%. Pharmacists were reported to be engaged in CDTM in 66% of respondents' hospitals, a significantly (p < 0.0001) greater proportion than reported in a comparable 2003 survey. The most prevalent CDTM activities were ordering laboratory and related tests (58.7% of hospitals), adjusting drug strength (57.9%), and changing the frequency of administration (53.8%). The most commonly reported diseases or treatment areas for CDTM use were anticoagulation (52.4% of hospitals), infectious diseases (44.8%), and parenteral nutrition (32.6%). CONCLUSION: From 2003 to 2013, the prevalence of CDTM use in surveyed U.S. hospitals increased significantly, from about 50% to 66%. The 3 most common specific CDTM activities in 2003-ordering test results, adjusting drug strength, and changing frequency of administration-were still the most common in 2013 but were allowed at higher percentages of hospitals.


Assuntos
Hospitais/estatística & dados numéricos , Conduta do Tratamento Medicamentoso/organização & administração , Adulto , Idoso , Atitude do Pessoal de Saúde , Estudos Transversais , Honorários Farmacêuticos , Feminino , Humanos , Masculino , Conduta do Tratamento Medicamentoso/economia , Pessoa de Meia-Idade , Preparações Farmacêuticas/administração & dosagem , Farmacêuticos , Serviço de Farmácia Hospitalar/organização & administração , Inquéritos e Questionários , Estados Unidos
16.
J Agric Food Chem ; 65(7): 1395-1400, 2017 Feb 22.
Artigo em Inglês | MEDLINE | ID: mdl-28114755

RESUMO

Safety assessment of genetically modified plants is an important aspect prior to deregulation. Demonstration of substantial equivalence of the transgenics compared to their nontransgenic counterparts can be performed using different techniques at various molecular levels. The present study is a first-ever comprehensive evaluation of pigeon pea transgenics harboring two independent cry genes, cry2Aa and cry1AcF. The absence of unintended effects in the transgenic seed components was demonstrated by proteome and nutritional composition profiling. Analysis revealed that no significant differences were found in the various nutritional compositional analyses performed. Additionally, 2-DGE-based proteome analysis of the transgenic and nontransgenic seed protein revealed that there were no major changes in the protein profile, although a minor fold change in the expression of a few proteins was observed. Furthermore, the study also demonstrated that neither the integration of T-DNA nor the expression of the cry genes resulted in the production of unintended effects in the form of new toxins or allergens.


Assuntos
Proteínas de Bactérias/genética , Cajanus/química , Endotoxinas/genética , Proteínas Hemolisinas/genética , Proteínas de Plantas/química , Plantas Geneticamente Modificadas/química , Sementes/química , Aminoácidos/análise , Aminoácidos/metabolismo , Toxinas de Bacillus thuringiensis , Proteínas de Bactérias/metabolismo , Cajanus/genética , Cajanus/metabolismo , Endotoxinas/metabolismo , Proteínas Hemolisinas/metabolismo , Minerais/análise , Minerais/metabolismo , Valor Nutritivo , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Plantas Geneticamente Modificadas/genética , Proteômica , Sementes/genética , Sementes/metabolismo
17.
Plant Cell Rep ; 35(6): 1273-86, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26993328

RESUMO

KEY MESSAGE: Differentially expressed antioxidant enzymes, amino acids and proteins in contrasting rice genotypes, and co-location of their genes in the QTLs mapped using bi-parental population, indicated their role in salt tolerance. Soil salinity is a major environmental constraint limiting rice productivity. Salt-tolerant 'CSR27', salt-sensitive 'MI48'and their extreme tolerant and sensitive recombinant inbred line (RIL) progenies were used for the elucidation of salt stress tolerance metabolic pathways. Salt stress-mediated biochemical and molecular changes were analyzed in the two parents along with bulked-tolerant (BT) and bulked-sensitive (BS) extreme RILs. The tolerant parent and BT RILs suffered much lower reduction in the chlorophyll as compared to their sensitive counterparts. Activities of antioxidant enzymes superoxide dismutase (SOD) and peroxidase (POD) and non-enzymatic antioxidant ascorbic acid were much higher in salt-stressed CSR27 and BT RILs than MI48 and BS RILs. Further, the tolerant lines showed significant enhancement in the levels of amino acids methionine and proline in response to salt stress in comparison to the sensitive lines. Similarly, the tolerant genotypes showed minimal reduction in cysteine content whereas sensitive genotypes showed a sharp reduction. Real time PCR analysis confirmed the induction of methionine biosynthetic pathway (MBP) enzymes cystathionine-ß synthase (CbS), S-adenosyl methionine synthase (SAMS), S-adenosyl methionine decarboxylase (SAMDC) and serine hydroxymethyl transferase (SHMT) genes in tolerant lines, suggesting potential role of the MBP in conferring salt tolerance in rice variety CSR27. Proteome profiling also confirmed higher expression of SOD, POD and plastidic CbS and other proteins in the tolerant lines, whose genes were co-located in the QTL intervals for salt tolerance mapped in the RIL population. The study signifies integrated biochemical-molecular approach for identifying salt tolerance genes for genetic improvement for stress tolerant rice varieties.


Assuntos
Oryza/genética , Tolerância ao Sal/genética , Aminoácidos/metabolismo , Regulação da Expressão Gênica de Plantas/genética , Regulação da Expressão Gênica de Plantas/fisiologia , Genótipo , Peroxidação de Lipídeos , Redes e Vias Metabólicas/genética , Redes e Vias Metabólicas/fisiologia , Oryza/fisiologia , Fotossíntese , Locos de Características Quantitativas/genética , Tolerância ao Sal/fisiologia
18.
J Adv Pharm Technol Res ; 2(4): 207-14, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-22247887

RESUMO

Cajanus cajan (L) Millsp. (Sanskrit: Adhaki, Hindi: Arhar, English: Pigeon pea, Bengali: Tur) (family: Fabaceae) is the most important grain legume crop of rain-fed agriculture in semi-arid tropics. It is both a food crop and a cover/forage crop with high levels of proteins and important amino acids like methionine, lysine and tryptophan. During the last few decades extensive studies have been carried out regarding the chemistry of C. cajan and considerable progress has been achieved regarding its biological activities and medicinal applications. This review article gives an overview on the biological activities of the compounds isolated, pharmacological actions and clinical studies of C. cajan extracts apart from its general details.

19.
Seizure ; 17(8): 684-90, 2008 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-18539487

RESUMO

PURPOSE: Despite recent advances in the management of epilepsy the efforts to assess knowledge, attitude and practice towards epilepsy are limited, particularly in the developing countries. To delineate the magnitude and scope of this problem, present study was conducted to assess the knowledge attitude and practice about epilepsy amongst schoolteachers in Northeast Uttar Pradesh, the most populous state of India. The basis of involving schoolteachers was their special role in Indian society with their larger interaction among the segment of population most affected by epilepsy. METHODS: Simple self-administered questionnaires were sent to the schoolteachers of primary and secondary levels. The questionnaires contained 15 questions related to awareness and attitudes towards epilepsy with details of first aid management of seizures. RESULTS: We found that 97% of schoolteachers were aware of epilepsy with majority including it as a brain disease. A substantial proportion (38.2%) was uncertain about relation of epilepsy and insanity and 31.7% felt epileptics to be of below average intelligence. Only about half of them (55.3%) preferred their children to play with an epileptic. An overwhelming no was obvious about marriage with an epileptic (86.8%). Only 27.8% of the respondents had given any first aid measure to a seizing patient with only 16.3% giving it properly. CONCLUSION: Despite a great degree of awareness about epilepsy amongst schoolteachers in India negative and wrong attitudes still exist. Stress on proper first aid measure to a seizing child needs greater emphasis to remove fright and fear amongst the public. Besides adequate management, public education to address existing biases and fear are equally important to improve the quality of life of epileptics.


Assuntos
Conscientização , Epilepsia/epidemiologia , Docentes , Conhecimentos, Atitudes e Prática em Saúde , Feminino , Humanos , Índia , Masculino , Inquéritos e Questionários
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