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1.
Chem Biodivers ; 21(4): e202301612, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38332679

RESUMEN

Heterocyclic compounds containing 1,2,3-triazole and isatin as core structures have emerged as promising drug candidates due to their diverse biological activities such as anti-cancer, antifungal, antimicrobial, antitumor, anti-epileptic, antiviral, and more. The presence of 1,2,3-triazoles and isatin heterocycles in these hybrids, both individually known for their medicinal significance, has increasingly piqued the interest of drug discovery researchers, as they seek to delve deeper into their extensive pharmacological potential for enhancing therapeutic efficacy. Moreover, these hybrid compounds are synthetically accessible using readily available materials. Therefore, there is a pressing need to provide a comprehensive overview of the existing knowledge in this field, offering valuable insights to readers and paving the way for the discovery of novel 1,2,3-triazole-linked isatin hybrids with therapeutic potential.


Asunto(s)
Antiinfecciosos , Isatina , Neoplasias , Humanos , Triazoles/farmacología , Triazoles/química , Relación Estructura-Actividad , Isatina/farmacología , Isatina/química , Antiinfecciosos/farmacología
2.
Mol Biol Rep ; 50(4): 3885-3901, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-36826681

RESUMEN

PURPOSE: Wheat is an important cereal crop that is cultivated in different parts of the world. The biotic stresses are the major concerns in wheat-growing nations and are responsible for production loss globally. The change in climate dynamics makes the pathogen more virulent in foothills and tropical regions. There is growing concern about FHB in major wheat-growing nations, and until now, there has been no known potential source of resistance identified in wheat germplasm. The plant pathogen interaction activates the cascade of pathways, genes, TFs, and resistance genes. Pathogenesis-related genes' role in disease resistance is functionally validated in different plant systems. Similarly, Genomewide association Studies (GWAS) and Genomic selection (GS) are promising tools and have led to the discovery of resistance genes, genomic regions, and novel markers. Fusarium graminearum produces deoxynivalenol (DON) mycotoxins in wheat kernels, affecting wheat productivity globally. Modern technology now allows for detecting and managing DON toxin to reduce the risk to humans and animals. This review offers a comprehensive overview of the roles played by GWAS and Genomic selection (GS) in the identification of new genes, genetic variants, molecular markers and DON toxin management strategies. METHODS: The review offers a comprehensive and in-depth analysis of the function of Fusarium graminearum virulence factors in Durum wheat. The role of GWAS and GS for Fusarium Head Blight (FHB) resistance has been well described. This paper provides a comprehensive description of the various statistical models that are used in GWAS and GS. In this review, we look at how different detection methods have been used to analyze and manage DON toxin exposure. RESULTS: This review highlights the role of virulent genes in Fusarium disease establishment. The role of genome-based selection offers the identification of novel QTLs in resistant wheat germplasm. The role of GWAS and GS selection has minimized the use of population development through breeding technology. Here, we also emphasized the function of recent technological developments in minimizing the impact of DON toxins and their implications for food safety.


Asunto(s)
Fusarium , Triticum , Humanos , Triticum/genética , Estudio de Asociación del Genoma Completo , Fitomejoramiento , Genómica , Enfermedades de las Plantas/genética
3.
J Postgrad Med ; 69(1): 43-45, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-35708397

RESUMEN

This was an educational intervention on postgraduates using SNAPPS (Summarize narrow, analyze, probe, plan, self-directed learning) showing comparable median (interquartile range) satisfaction scores with faculty or senior residents as 4 (3,5) and 4 (4, 4.25); respectively, P = 0.79. Further training of senior residents in medical education will enable them to participate efficiently and actively in postgraduate teaching.


Asunto(s)
Internado y Residencia , Pediatría , Humanos , Niño , Competencia Clínica , Aprendizaje , Docentes , Enseñanza , Docentes Médicos
4.
Phys Chem Chem Phys ; 24(47): 28844-28852, 2022 Dec 07.
Artículo en Inglés | MEDLINE | ID: mdl-36422471

RESUMEN

Superfluid helium nanodroplets are often considered as transparent and chemically inert nanometer-sized cryo-matrices for high-resolution or time-resolved spectroscopy of embedded molecules and clusters. On the other hand, when the helium nanodroplets are resonantly excited with XUV radiation, a multitude of ultrafast processes are initiated, such as relaxation into metastable states, formation of nanoscopic bubbles or excimers, and autoionization channels generating low-energy free electrons. Here, we discuss the full spectrum of ultrafast relaxation processes observed when helium nanodroplets are electronically excited. In particular, we perform an in-depth study of the relaxation dynamics occurring in the lowest 1s2s and 1s2p droplet bands using high resolution, time-resolved photoelectron spectroscopy. The simplified excitation scheme and improved resolution allow us to identify the relaxation into metastable triplet and excimer states even when exciting below the droplets' autoionization threshold, unobserved in previous studies.

5.
Genomics ; 112(1): 108-113, 2020 01.
Artículo en Inglés | MEDLINE | ID: mdl-30735793

RESUMEN

The study was undertaken to decipher the microRNA (miRNA) related markers associated with corpus luteum (CL) tropism in buffalo. The data obtained from deep sequencing of CL tissue from different physiological stages was mined in silico for the identification of miRNA-related markers (SSR & SNP). From the present study, 5 annotated and 176 unannotated miRNA were deduced while comparing with Bos taurus genome. In addition, 4 SSRs and 9 SNPs were deduced from the miRNA sequences. These SSRs were on the genes viz. Eukaryotic translation initiation factor 1-like, myocyte enhancer factor 2A, beta casein, T cell receptor gamma cluster 1. The SNP positions on genes viz. PYGO1 (Pygopus family PHD finger 1), LOC100337244 (Multidrug resistance-associated protein 4), FTH1 (Ferritin heavy chain 1), LOC788634 (BOLA class I histocompatibility antigen), PLXND1 (Plexin D1) and UBC (Ubiquitin C) show that these genes play critical role in CL tropism during estrous cycle in buffalo.


Asunto(s)
Búfalos/genética , Cuerpo Lúteo/metabolismo , MicroARNs/genética , MicroARNs/metabolismo , Animales , Biomarcadores/metabolismo , Búfalos/metabolismo , Femenino , Regulación de la Expresión Génica , MicroARNs/química , Repeticiones de Microsatélite , Polimorfismo de Nucleótido Simple , Embarazo
6.
Genomics ; 112(5): 3571-3578, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32320820

RESUMEN

Single Nucleotide Polymorphism (SNP) is one of the important molecular markers widely used in animal breeding program for improvement of any desirable genetic traits. Considering this, the present study was carried out to identify, annotate and analyze the SNPs related to four important traits of buffalo viz. milk volume, age at first calving, post-partum cyclicity and feed conversion efficiency. We identified 246,495, 168,202, 74,136 and 194,747 genome-wide SNPs related to mentioned traits, respectively using ddRAD sequencing technique based on 85 samples of Murrah Buffaloes. Distribution of these SNPs were highest (61.69%) and lowest (1.78%) in intron and exon regions, respectively. Under coding regions, the SNPs for the four traits were further classified as synonymous (4697) and non-synonymous (3827). Moreover, Gene Ontology (GO) terms of identified genes assigned to various traits. These characterized SNPs will enhance the knowledge of cellular mechanism for enhancing productivity of water buffalo through molecular breeding.


Asunto(s)
Búfalos/genética , Polimorfismo de Nucleótido Simple , Animales , Femenino , Leche , Anotación de Secuencia Molecular , Análisis de Secuencia de ADN
7.
J Environ Manage ; 292: 112816, 2021 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-34030019

RESUMEN

Mangroves can play a crucial part in climate change mitigation policies due to their high carbon-storing capacity. However, the carbon sequestration potential of Indian mangroves generally remained unexplored to date. In this study, multi-temporal Sentinel-1 and 2 data-derived variables were used to estimate the AGB of a tropical carbon-rich mangrove forest of India. Ensemble prediction of multiple machine learning algorithms, including Random Forest (RF), Gradient Boosted Model (GBM), and Extreme Gradient Boosting (XGB), were used for AGB prediction. The multi-temporal dataset was used in two different ways to find the most suitable method of using them. The results of the analysis showed that the modeling field measured AGB with individual date data values results in estimates with root mean square errors (RMSE) ranging from 149.242 t/ha for XGB to 151.149 t/ha for the RF. Modeling AGB with the average and percentile metrics of the multi-temporal image stack improves the prediction accuracy of AGB, with RMSE ranging from 81.882 t/ha for the XGB to 74.493 t/ha for the RF. The AGB modeling using ensemble prediction showed further improvement in accuracy with an RMSE of 72.864 t/ha and normalized RMSE of 11.38%. In this study, the intra-seasonal variation of Sentinel-1 and 2 data for mangrove ecosystems was explored for the first time. The variations in remotely sensed variables could be attributed mainly to soil moisture availability and rainfall in the mangrove ecosystem. The efficiency of Sentinel-1 and 2 data-derived variables and ensemble prediction of machine learning models for Indian mangroves were also explored for the first time. The methodologies established in this study can be used in the future for accurate prediction and repeated monitoring of AGB for mangrove ecosystems.


Asunto(s)
Carbono , Ecosistema , Biomasa , Carbono/análisis , Secuestro de Carbono , India
8.
Int J Environ Sci Technol (Tehran) ; 18(6): 1645-1652, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33758592

RESUMEN

Ganges River water quality was assessed to record the changes due to the nation-wide pandemic lockdown. Satellite-based (Sentinel-2) water quality analysis before and during lockdown was performed for seven selected locations spread across the entire stretch of the Ganges (Rishikesh-Dimond Harbour). Results revealed that due to the lockdown, the water quality of the Ganges improved with reference to specific water quality parameters, but the improvements were region specific. Along the entire stretch of Ganges, only the Haridwar site showed improvement to an extent of being potable as per the threshold set by the Central Pollution Control Board, New Delhi, India. A 55% decline in turbidity at that site during the lockdown was attributed to the abrupt halt in pilgrimage activities. Absorption by chromophoric dissolved organic matter which is an indicator of organic pollution declined all along the Ganges stretch with a maximum decline at the downstream location of Diamond Harbour. Restricted discharge of industrial effluent, urban pollution, sewage from hotels, lodges, and spiritual dwellings along the Ganges are some of the reasons behind such declines. No significant change in the geographic trend of chlorophyll-a was observed. The findings of this study highlight the importance of regular monitoring of the changes in the Ganges water quality using Sentinel-2 data to further isolate the anthropogenic impact, as India continues the phase-wise opening amidst the pandemic.

9.
J Environ Manage ; 256: 109985, 2020 Feb 15.
Artículo en Inglés | MEDLINE | ID: mdl-31989970

RESUMEN

Galvanizing dross-a waste product from steel industries but it can be a potential secondary resource for zinc through urban mining and recycling. In this concern, a novel and scalable recycling route with zero effluent strategy is developed for the recovery of zinc from galvanizing dross as high grade zinc salts along with value-added products through hydrometallurgical processing. In particular, as-such dross block was leached in 9% (v/v) sulphuric acid medium, wherein strong hydrogen gas effervescence results in alleviating the pulverization and stirring requirements; which are material and energy intensive. Leached zinc is purified and recovered as high purity ZnSO4.(H2O/7H2O) and Zn3(PO4)2.4H2O through controlled crystallization and phosphate precipitation respectively; which find application in fertilizers and anti-corrosive paints. Temperature difference method was opted for the crystallization of zinc sulfate salts, wherein 70 °C and 30 °C were found to be stability range of crystallization of ZnSO4.H2O and ZnSO4.7H2O respectively. ZnSO4-H2O phase diagram is developed using Factsage calculations to corroborate crystallization study. Moreover, exhaustive thermodynamic analysis of Zn2+-PO43--H2O system at 303 K on precipitation of zinc phosphate using di-ammonium hydrogen phosphate (80-240 g/L) is conducted and the results reveal that with increasing pH (3-6), intermediate hydrogen phosphate species (H3PO4, H2PO4- and H2PO42-) decompose to produce stable PO43- ions leading to zinc phosphate precipitation. Impurity like Iron and supernatant solution left after crystallization are recovered as hydrated iron-calcium sulfate mixture and ammonium sulfate salt respectively. This explored route is economical and easily adaptable with zero effluents, therefore, transcends serious challenges in terms of energy requirement, scale-up and effluent generation.


Asunto(s)
Hierro , Zinc , Reciclaje , Acero , Sulfatos
10.
J Nanosci Nanotechnol ; 18(1): 394-400, 2018 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-29768859

RESUMEN

Silver nanoparticles are produced by a novel biosynthesis technique using fungus Penicillium purpurogenum NPMF (MTCC 7356). The biomass when subjected to heat treatment up to 700 °C produces the nanoparticles of silver due to the presence of free carbon which acts as encapsulation for silver nanoparticles. Increase in temperature above 700 °C causes a reduction in concentration of free carbon so that the nanoparticles come close to each other and form clusters in the shape of tetrapods to polypods. The micro-Raman analysis supports the formation of mesoporous carbon with increase in the calcined temperature. The formation of Ag nanostructures has been explained in terms of free energy diagram i.e., the crystal favors more to grow on (100) facet or (110) facet rather than on (111) facet by the addition of silver atoms and thereby, it releases more energy. The release of energy has been confirmed from the differential thermo gravimetric analysis. In fact, it is the dynamics of the minimization of the free energy of the system which governs the reorientation and rearrangement of Ag themselves leading to formation of various types of polypods. A formation mechanism is presented schematically.

11.
Radiat Environ Biophys ; 55(2): 255-64, 2016 May.
Artículo en Inglés | MEDLINE | ID: mdl-26846648

RESUMEN

The thermoluminescence (TL) and optically stimulated luminescence (OSL) properties of human nails and hairs containing α-keratin proteins have been investigated. For the present studies, black hairs and finger nails were selectively collected from individuals with ages between 25 and 35 years. The collected hairs/nails were cut to a size of < 1 mm and cleaned with distilled water to remove dirt and other potential physical sources of contamination. All samples were optically beached with 470 nm of LED light at 60 mW/cm(2) intensity and irradiated by a (60)Co γ source. The hair and nail samples showed overlapping multiple TL glow peaks in the temperature range from 70 to 210 ° C. Continuous wave (CW)-OSL measurements of hair samples at a wavelength of 470 nm showed the presence of two distinct OSL components with photoionization cross section (PIC) values of about 1.65 × 10(-18) cm(2) and about 3.48 × 10(-19) cm(2), while measurements of nail samples showed PIC values of about 6.98 × 10(-18) cm(2) and about 8.7 × 10(-19) cm(2), respectively. This difference in PIC values for hair and nail samples from the same individual is attributed to different arrangement of α-keratin protein concentrations in the samples. The OSL sensitivity was found to vary ± 5 times among nail and hair samples from different individuals, with significant fading (60% in 11 h) at room temperature. The remaining signal (after fading) can be useful for dose estimation when a highly sensitive OSL reader is used. In the absorbed dose range of 100 mGy-100 Gy, both the TL and OSL signals of hair and nail samples showed linear dose dependence. The results obtained in the present study suggest that OSL using hair and nail samples may provide a supplementary method of dose estimation in radiological and nuclear emergencies.


Asunto(s)
Cabello/metabolismo , Queratinas/metabolismo , Mediciones Luminiscentes , Uñas/metabolismo , Fenómenos Ópticos , Radiometría/métodos , Adulto , Femenino , Cabello/efectos de la radiación , Humanos , Masculino , Uñas/efectos de la radiación
12.
Phytochem Anal ; 26(6): 383-94, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26268610

RESUMEN

INTRODUCTION: Ocimum sanctum L., with phenolic acids, flavonoids, propenyl phenols and terpenoids as active pharmacological constituents, is a popular medicinal herb and is present as an ingredient in many herbal formulations. Therefore, development of a reliable analytical method for simultaneous determination of the pharmacologically active constituents of O. sanctum is of high importance. OBJECTIVE: To develop and validate a new, rapid, sensitive and selective UPLC-ESI/MS/MS method for simultaneous determination of 23 bioactive markers including phenolic acids, flavonoids, propenyl phenol and terpenoid in the leaf extract and marketed herbal formulations of O. sanctum. METHODS: An UPLC-ESI/MS/MS method using negative electrospray ionisation (ESI) in multiple-reaction-monitoring (MRM) mode was used for simultaneous determination. Chromatographic separation was achieved on an Acquity UPLC BEH C18 -column using a gradient elution with 0.1% formic acid in water and 0.1% formic acid in acetonitrile. Principal component analysis (PCA) was applied to correlate and discriminate eight geographical collections of O. sanctum based on quantitative data of the analytes. RESULTS: The developed method was validated as per International Conference on Harmonization guidelines and found to be accurate, with overall recovery in the range 95.09-104.84% (RSD ≤ 1.85%), precise (RSD ≤ 1.98%) and linear (r(2) ≥ 0.9971) over the concentration range of 0.5-1000 ng/mL. Ursolic acid was found to be the most abundant marker in all the samples investigated, except for the marketed tablet. CONCLUSION: The method established is simple, rapid and sensitive, hence it can be reliably utilised for the quality control of O. sanctum and derived herbal formulations.


Asunto(s)
Ocimum/química , Extractos Vegetales/química , Plantas Medicinales/química , Espectrometría de Masa por Ionización de Electrospray/métodos , India , Medicina Ayurvédica , Ocimum/clasificación , Hojas de la Planta/química , Análisis de Componente Principal , Control de Calidad
13.
Nanotechnology ; 25(20): 205602, 2014 May 23.
Artículo en Inglés | MEDLINE | ID: mdl-24785547

RESUMEN

We report on the fabrication and characterization of iron oxide nanoparticle thin film superlattices. The formation into different film morphologies is controlled by tuning the particle plus solvent-to-substrate interaction. It turns out that the wetting vs dewetting properties of the solvent before the self-assembly process during solvent evaporation plays a major role in determining the resulting film morphology. In addition to layerwise growth three-dimensional mesocrystalline growth is also evidenced. The understanding of the mechanisms ruling nanoparticle self-assembly represents an important step towards the fabrication of novel materials with tailored optical, magnetic or electrical transport properties.

14.
Radiat Environ Biophys ; 53(4): 763-74, 2014 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-24929347

RESUMEN

Dental enamel was studied for its thermoluminescence (TL) and optically stimulated luminescence (OSL) defects. The TL studies showed a wide glow curve with multiple peaks. The thermally assisted OSL (TA-OSL) studies showed that the integrated TA-OSL and thus OSL signal increases with readout temperature between 100 and 250 °C, due to the temperature dependence of OSL. The thermally assisted energy E A associated with this increase is found to be 0.21 ± 0.015 eV. On the other hand, the signal intensity decreases with temperature between 260 and 450 °C. This decrease could be due to depletion of OSL active traps or possible thermal quenching. The increase of the OSL signal at increased temperature can be used to enhance the sensitivity of dental enamel for ex vivo measurements in retrospective dosimetry. The emission and excitation spectra of its luminescence centers were studied by photoluminescence and were found to be at 412 and 324 nm, respectively. It was found to possess multiple OSL active traps having closely lying photoionization cross sections characterized by continuous wave OSL and nonlinear OSL methods. The investigated dental enamel samples showed a linear OSL dose response up to 500 Gy. The dose threshold was found to be 100 mGy using a highly sensitive compact OSL reader with blue LED (470 nm) stimulation.


Asunto(s)
Esmalte Dental/efectos de la radiación , Fenómenos Ópticos , Temperatura , Dosimetría Termoluminiscente/métodos , Humanos , Mediciones Luminiscentes , Estudios Retrospectivos
15.
Med J Armed Forces India ; 70(4): 315-20, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25382903

RESUMEN

BACKGROUND: The BCR-ABL tyrosine kinase is a well validated therapeutic target in Chronic Myeloid Leukemia (CML). Imatinib mesylate (IM), a tyrosine kinase inhibitor is highly effective in the treatment of chronic phase CML. BCR - ABL transcripts have been well established as a molecular marker to document response to therapy in CML. Periodic monitoring of this marker helps in evolving therapeutic strategies with IM and also in diagnosing early relapse. This study was undertaken to monitor therapeutic response to IM in CML in chronic phase (CML-CP) by assessing BCR-ABL by real time quantitative PCR (RQ-PCR) techniques and to determine the effectiveness of the Indian generic IM. METHODS: One hundred consecutive patients of CML in chronic phase (CML-CP) were treated with an Indian generic of IM. Eighty-five patients were evaluable at 12 months of therapy. At entry, diagnosis of CML-CP was confirmed by FISH and RQ-PCR. Response to therapy was monitored by assessing BCR-ABL levels by RQ-PCR at 6 and 12 months of therapy. Regular follow up of patients was done to evaluate the safety profile of IM used in these patients. RESULTS: Complete hematological response (CHR) rates at 3, 6, 9 and 12 months were 92%, 94%, 100% and 100% respectively. The total molecular response at 12 months was 43.52% of which complete molecular response (CMR) was noted in 17.64% and major molecular response (MMR) was observed in 25.88%. A cumulative survival probability of 0.8 was observed. CONCLUSION: The Indian generic molecule of IM is effective in the treatment of CML-CP. The cost of Indian generic molecule is less than Rs. 10,000 per month there by making this affordable for large number of CML-CP patients in India.

16.
Sci Rep ; 14(1): 868, 2024 01 09.
Artículo en Inglés | MEDLINE | ID: mdl-38195737

RESUMEN

The present study was conducted to evaluate the genetic variability for morphological and qualitative traits of Coccinia for development of trait specific lines at ICAR-Central Horticultural Experiment Station (CIAH-RS), Panchmahals (Godhra), Gujarat during 2020-2022. In this study, we evaluated 26 gynoecious accessions to assess the genetic divergence through principal component and cluster analysis. The experiment was carried out in a randomized complete block design with three replications under rainfed semi-arid conditions. High values of PCV and GCV were observed for variables such as NFFP (25.13 and 22.20), PL (23.14 and 20.69), FD (24.01 and 21.46), AFW (22.98 and 20.13), NFPY (26.38 and 24.40), FYP (37.57 and 31.29), FY (35.55 and 33.20), AsC (28.65 and 27.73), Ac (24.32 and 21.06), TSS (37.23 and 35.94), DPPHL (20.71 and 20.38), FRAPL (21.08 and 20.92), TPF(20.81 and 20.45) respectively. High heritability coupled with high genetic advance as per cent of mean was observed for vine length (VL), internodal length (IL), number of female flowers per plant (NFFP), fruit length (FL), peduncle length (PL), fruit diameter (FD), average fruit weight (AFW), number of fruit per plant per year (NFPY), fruit yield per plant (FYP), fruit yield (FY), ascorbic acid (AsC), acidity (Ac), total soluble solids (TSS), total phenols in leaves TPL), total flavonoids in leaves TFL, CUPRAC in leaves (CUPRACL), DPPH in leaves (DPPHL), FRAP in leaves (FRAPL), Total phenols in fruits (TPF), Total flavonoids in fruits (TFF), CUPRAC in fruits (CUPRACF) and DPPH in fruits (DPPHF). The FYP exhibited a significant positive correlation with variables like VL (0.6833), IL (0.2991), NFFP (0.8107), FD (0.5245), AFW (0.6766), NFPY (0.7659), ASC (0.4611), TSS (0.5004) and TPF (0.4281). The estimates of genetic parameters revealed scope for further improvement of fruit yield by selection. Of the eight principal components, PC-I through PC-VIII had eigen values greater than 1 and it accounts 85.02% of the total variation for 26 gynoecious accessions of Ivy gourd. The eigen values of PC-I comprised 5.775% of total variation followed by PC-II (4.250%), PC-III (3.175%), PC-IV (2.588%), PC-V (1.828%), PC-VI (1.447%), PC-VII (1.179%) and PC-VIII (1.013%).The cluster VI and cluster I having highest mean values for most of traits under study. Thus, genotypes from the distinct cluster like cluster VI and I for should be used for selection of parents and varietal improvement for further breeding programme in ivy gourd.


Asunto(s)
Antioxidantes , Cucurbitaceae , Flavonoides , Variación Genética , Pirosis , Fenoles , Fitomejoramiento
17.
Cytogenet Genome Res ; 141(1): 26-36, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23735614

RESUMEN

The pseudoautosomal region (PAR) has important biological functions in spermatogenesis, male fertility and early development. Even though pig (Sus scrofa, SSC) is an agriculturally and biomedically important species, and its genome is sequenced, current knowledge about the porcine PAR is sparse. Here we defined the PAR in SSCXp/Yp by demarcating the sequence of the pseudoautosomal boundary at X:6,743,567 bp in intron 3-4 of SHROOM2 and showed that SHROOM2 is truncated in SSCY. Cytogenetic mapping of 20 BAC clones containing 15 PAR and X-specific genes revealed that the pig PAR is largely collinear with other mammalian PARs or Xp terminal regions. The results improved the current SSCX sequence assembly and facilitated distinction between the PAR and X-specific genes to study their expression in adult and embryonic tissues. A pilot analysis showed that the PAR genes are expressed at higher levels than X-specific genes during early development, whereas the expression of PAR genes was higher at day 60 compared to day 26, and higher in embryonic tissues compared to placenta. The findings advance the knowledge about the comparative organization of the PAR in mammals and suggest that the region might have important functions in early development in pigs.


Asunto(s)
Regulación del Desarrollo de la Expresión Génica , Porcinos/genética , Transcriptoma , Cromosoma X/genética , Cromosoma Y/genética , Animales , Secuencia de Bases , Paseo de Cromosoma , Cromosomas Artificiales Bacterianos , Cromosomas de los Mamíferos/genética , Desarrollo Embrionario , Femenino , Intrones , Linfocitos/citología , Masculino , Metafase , Datos de Secuencia Molecular , Mapeo Físico de Cromosoma , Placenta , Embarazo , Análisis de Secuencia de ADN
18.
J Environ Manage ; 125: 68-73, 2013 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-23644591

RESUMEN

Recovery of valuable materials/metals from waste goes hand in hand with environmental protection. This paper deals with the development of a process for the recovery of metals such as Mo, V, Ni, Al from spent hydroprocessing catalyst which may otherwise cause a nuisance if dumped untreated. A detailed study on the separation of molybdenum and vanadium from the leach solution of spent hydroprocessing catalyst of composition: 27.15% MoO3, 1.7% V2O5, 3.75% NiO, 54.3% Al2O3, 2.3% SiO2 and 10.4% LOI is reported in this paper. The catalyst was subjected to roasting under oxidizing atmosphere at a temperature of about 550 °C and leaching in dilute sulphuric acid to dissolve molybdenum, vanadium, nickel and part of aluminium. Metals from the leach solution were separated by solvent extraction. Both molybdenum and vanadium were selectively extracted with a suitable organic solvent leaving nickel and dissolved aluminium in the raffinate. Various parameters such as initial pH of the aqueous feed, organic to aqueous ratio (O:A), solvent concentration etc. were optimized for the complete extraction and recovery of Mo and V. Molybdenum and vanadium from the loaded organic were stripped by ammonia solution. They were recovered as their corresponding ammonium salt by selective precipitation, and were further calcined to get the corresponding oxides in pure form.


Asunto(s)
Residuos Peligrosos , Molibdeno/química , Vanadio/química , Aluminio/química , Catálisis , Níquel/química , Solventes/química
19.
J Environ Biol ; 34(2): 183-9, 2013 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24620577

RESUMEN

Forty-three isolates of Trichoderma spp. and forty isolates of bacterial (fluorescent pseudomonads) biocontrol agents were isolated and evaluated for their relative biocontrol potential and thereafter development of mixed formulation of efficient compatible fungal and bacterial bio-agents. Different isolates of either Trichoderma or Pseudomonas exhibited differential antagonistic activity with different species of tested pathogens. Pseudomonas in general, suppressed the growth of Trichoderma under in-vitro conditions however, a few combinations were found compatible. Fungal isolate PBAT-43 (T. harzianum) and bacterial isolate PBAP-27 (P. fluorescens) emerged as most compatible and efficient and therefore were used for development of mixed formulation. Individual and mixed formulations were evaluated for their relative bio-efficacy under glass-house and field conditions. Mixed formulation exhibited increase in seed germination ranges from 25.5 - 72.11% and disease control 47.68- 76.00% in different crops as compared to control. Application of compatible mixture of fungal and bacterial biocontrol agents possessing various mechanism of pathogen suppression is suggested as a reliable and potential means of disease suppression.


Asunto(s)
Control Biológico de Vectores , Enfermedades de las Plantas/microbiología , Pseudomonas/fisiología , Trichoderma/fisiología , Fabaceae/microbiología , Germinación/fisiología , Solanum lycopersicum/microbiología , Oryza/microbiología , Plantas/microbiología , Semillas/microbiología , Semillas/fisiología
20.
Kathmandu Univ Med J (KUMJ) ; 11(41): 86-7, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23774422

RESUMEN

Local and minor adverse reactions to diphtheria-pertussis-tetanus (DPT) vaccination are usually mild and appear within 48 hours of vaccination. We herein report a rare association with intramuscular DPT injection and discuss pertinent issues. Primary tuberculous abscess was the final diagnosis.


Asunto(s)
Absceso/inducido químicamente , Vacuna contra Difteria, Tétanos y Tos Ferina/efectos adversos , Absceso/diagnóstico , Absceso/cirugía , Diagnóstico Diferencial , Vacuna contra Difteria, Tétanos y Tos Ferina/administración & dosificación , Drenaje/métodos , Femenino , Humanos , Lactante , Inyecciones Intramusculares , Muslo
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