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1.
J Environ Manage ; 293: 112892, 2021 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-34062423

RESUMO

Energy intensive traditional cereals based monoculture often lead to high greenhouse gas emissions and degradation of land and environmental quality. Present study aimed at evaluating the energy and carbon budget of diversified groundnut (Arachis hypogea L) based cropping system with over existing traditional practice towards the development of a sustainable production technology through restoration of soil and environmental quality and enhancement of farming resiliency by stabilizing farmers' income. The trials comprised of three introduced groundnut based systems viz. groundnut- pea (Pisum sativum), groundnut-lentil (Lens esculenta) and groundnut-toria (Brasssica campestris var. Toria) replacing three existing systems viz. maize (Zea mays L) - fallow, maize - toria, and rice (Oryza sativa L)-fallow systems. Four years study revealed that adoption of groundnut based systems reduced non-renewable energy input use (fertilizers, chemical, machinery and fossil fuels) by 25.5%, consequently that reduced the cost of production. Repeated analysis of variance measurement also affirmed that groundnut based systems (groundnut-pea>groundnut-lentil> groundnut-toria) increased the energy use efficiency, energy productivity, carbon use efficiency, net returns and decreased the specific energy and energy intensiveness. Groundnut based systems increased the mean system productivity and water productivity in terms of groundnut equivalent yield by 3.7 and 3.1 folds over existing practice. The savings of fossil fuel reduced greenhouse gas emissions owing to reduced use of farm machinery and synthetic fertilizers. Groundnut based systems significantly (p < 0.05) enhanced the soil carbon concentration (8.7-18.1%) and enzymatic activities (27.1-51.8%) over existing practice. Consequently, estimated soil quality index values were 35.9-77.3% higher under groundnut based systems than existing practice. Thus, the study indicated the resilient nature of groundnut based systems as an environmentally safe and sustainable production technology for enhancing resource use efficiency, reduce carbon emission, energy intensiveness and cost of production in the Eastern Himalaya region of India and similar ecosystems.


Assuntos
Carbono , Solo , Agricultura , Carbono/análise , Produtos Agrícolas , Ecossistema , Fazendeiros , Fertilizantes , Humanos , Índia
2.
Parasite Immunol ; 39(9)2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28686299

RESUMO

The study explored the role of differential RANTES concentrations, its receptor CCR5 expression and resulting immunomodulation in the pathogenesis and/or recovery from falciparum malaria. The study population included cases of uncomplicated malaria (UC-M, N=128, enrolled on follow-up basis), severe malaria (SM, N=25), and healthy controls (N=112). Serum RANTES and TNF-α levels were evaluated by ELISA. Monocyte levels and activation profile were studied by flow cytometry. Differential mRNA expression profile was studied by real-time PCR. Blood parasite count was evaluated by registered pathologists. RANTES concentration was significantly downregulated in SM cases compared to UC-M (P=.046) and controls (P<.001). Expression of monocyte marker mCD14, activation markers CCR5 and CD40, and downstream effector cytokine TNF-α was significantly higher in malaria cases compared to controls, in SM cases compared to UC-M. TNF-α expression correlated positively with CD40 and CCR5 expressions. Follow-up-based analysis showed that RANTES concentrations increased on recovery compared to baseline in UC-M cases (P=.106) and inversely correlated with malaria parasite load, mCD14, CCR5 and CD40, and TNF-α expressions. These findings suggest an important association of RANTES concentrations in Plasmodium falciparum malaria disease pathogenesis, as well as recovery, mediated through differential modulation and regulated activation of monocytes and cytokine TNF-α.


Assuntos
Quimiocina CCL5/sangue , Regulação da Expressão Gênica , Malária Falciparum/diagnóstico , Plasmodium falciparum/imunologia , Adulto , Biomarcadores/análise , Quimiocina CCL5/metabolismo , Citocinas/sangue , Ensaio de Imunoadsorção Enzimática , Feminino , Citometria de Fluxo , Humanos , Malária Falciparum/parasitologia , Masculino , Monócitos/imunologia , Adulto Jovem
3.
PLoS One ; 11(3): e0151786, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27010649

RESUMO

During the recent past, development of DDT resistance and reduction to pyrethroid susceptibility among the malaria vectors has posed a serious challenge in many Southeast Asian countries including India. Current study presents the insecticide susceptibility and knock-down data of field collected Anopheles annularis sensu lato and An. vagus mosquito species from endemic areas of Assam in northeast India. Anopheles annularis s.l. and An. vagus adult females were collected from four randomly selected sentinel sites in Orang primary health centre (OPHC) and Balipara primary health centre (BPHC) areas, and used for testing susceptibility to DDT, malathion, deltamethrin and lambda-cyhalothrin. After insecticide susceptibility tests, mosquitoes were subjected to VectorTest™ assay kits to detect the presence of malaria sporozoite in the mosquitoes. An. annularis s.l. was completely susceptible to deltamethrin, lambda-cyhalothrin and malathion in both the study areas. An. vagus was highly susceptible to deltamethrin in both the areas, but exhibited reduced susceptibility to lambda-cyhalothrin in BPHC. Both the species were resistant to DDT and showed very high KDT50 and KDT99 values for DDT. Probit model used to calculate the KDT50 and KDT99 values did not display normal distribution of percent knock-down with time for malathion in both the mosquito species in OPHC (p<0.05) and An. vagus in BPHC (χ2 = 25.3; p = 0.0), and also for deltamethrin to An. vagus in BPHC area (χ2 = 15.4; p = 0.004). Minimum infection rate (MIR) of Plasmodium sporozoite for An. vagus was 0.56 in OPHC and 0.13 in BPHC, while for An. annularis MIR was found to be 0.22 in OPHC. Resistance management strategies should be identified to delay the expansion of resistance. Testing of field caught Anopheles vectors from different endemic areas for the presence of malaria sporozoite may be useful to ensure their role in malaria transmission.


Assuntos
Anopheles/efeitos dos fármacos , Controle de Insetos/métodos , Insetos Vetores/efeitos dos fármacos , Inseticidas/farmacologia , Malária/prevenção & controle , Plasmodium/isolamento & purificação , Animais , Anopheles/parasitologia , DDT/farmacologia , Feminino , Humanos , Índia/epidemiologia , Insetos Vetores/parasitologia , Resistência a Inseticidas , Malária/epidemiologia , Malária/transmissão , Malation/farmacologia , Nitrilas/farmacologia , Piretrinas/farmacologia
4.
J Biol Phys ; 40(3): 267-74, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24771391

RESUMO

Numerous investigations have been carried out on the spectral distribution of the light of different species of fireflies. Here we record the emission spectrum of the Indian species of the firefly Luciola praeusta Kiesenwetter 1874 (Coleoptera : Lampyridae : Luciolinae) on a color film. Green and red color-sectors, with an intense yellow one in between, appear in this spectrum. Intensity profile of this spectrum reveals a hitherto undetected strong narrow yellow line, which lies within the full-width-at-half maximum (FWHM) of the intensity profile. The spectrum recorded in a high-resolution spectrometer confirms the presence of this sharp intense line. This finding lends support to an earlier drawn analogy between the in vivo emission of the firefly and laser light.


Assuntos
Vaga-Lumes , Medições Luminescentes , Animais , Cor , Masculino
5.
J Helminthol ; 88(3): 357-61, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23721888

RESUMO

The neuromuscular system of helminths is an important area for target identification and drug development. Many anthelmintics, namely ivermectin, levamisole, piperazine, pyrantel, praziquantel and organophosphates, produce paralysis of helminths by affecting their neuromuscular systems. The neuromuscular system of helminths is also an important area of research to identify some of the important differences between the neuromuscular physiology of helminths and mammals. The identification of differences would help in developing newer target-specific, safe and effective anthelmintics. The present study was carried out to investigate the effects of different adrenergic neurotransmitters (epinephrine, norepinephrine, dopamine, l-dopa) and their antagonists (propranolol and haloperidol) on the spontaneous muscular activity of isometrically mounted Paramphistomum cervi.


Assuntos
Adrenérgicos/metabolismo , Antagonistas Adrenérgicos beta/metabolismo , Antagonistas de Dopamina/metabolismo , Locomoção , Músculos/fisiologia , Neurotransmissores/metabolismo , Paramphistomatidae/fisiologia , Animais
6.
Environ Monit Assess ; 186(4): 2013-24, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24221958

RESUMO

Quantitative assessment of soil quality is required to determine the sustainability of land uses in terms of environmental quality and plant productivity. Our objective was to identify the most appropriate soil quality indicators and to evaluate the impact of six most prevalent land use types (natural forestland, cultivated lowland, cultivated upland terrace, shifting cultivation, plantation land, and grassland) on soil quality in eastern Himalayan region of India. We collected 120 soil samples (20 cm depth) and analyzed them for 29 physical, chemical, and biological soil attributes. For selection of soil quality indicators, principal component analysis (PCA) was performed on the measured attributes, which provided four principal components (PC) with eigenvalues >1 and explaining at least 5% of the variance in dataset. The four PCs together explained 92.6% of the total variance. Based on rotated factor loadings of soil attributes, selected indicators were: soil organic carbon (SOC) from PC-1, exchangeable Al from PC-2, silt content from PC-3, and available P and Mn from PC-4. Indicators were transformed into scores (linear scoring method) and soil quality index (SQI) was determined, on a scale of 0-1, using the weighting factors obtained from PCA. SQI rating was the highest for the least-disturbed sites, i.e., natural forestland (0.93) and grassland (0.87), and the lowest for the most intensively cultivated site, i.e., cultivated upland terrace (0.44). Ratings for the other land uses were shifting cultivation (0.60) > cultivated low land (0.57) > plantation land (0.54). Overall contribution (in percent) of the indicators in determination of SQI was in the order: SOC (58%) > exch. Al (17.1%) > available P (8.9%) > available Mn (8.2%) > silt content (7.8%). Results of this study suggest SOC and exch. Al as the two most powerful indicators of soil quality in study area. Thus, organic C and soil acidity management holds the key to improve soil quality under many exploitatively cultivated land use systems in eastern Himalayan region of India.


Assuntos
Agricultura , Monitoramento Ambiental , Solo/química , Carbono/análise , Índia , Análise de Componente Principal , Poluentes do Solo/análise , Oligoelementos/análise
7.
Gene Ther ; 20(9): 930-8, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23535898

RESUMO

Targeting therapeutic gene expression to the skeletal muscle following intravenous (IV) administration is an attractive strategy for treating peripheral arterial disease (PAD), except that vector access to the ischemic limb could be a limiting factor. As adeno-associated virus serotype 9 (AAV-9) transduces skeletal muscle at high efficiency following systemic delivery, we employed AAV-9 vectors bearing luciferase or enhanced green fluorescent protein (eGFP) reporter genes to test the hypothesis that increased desialylation of cell-surface glycans secondary to hindlimb ischemia (HLI) might help offset the reduction in tissue perfusion that occurs in mouse models of PAD. The utility of the creatine kinase-based (CK6) promoter for restricting gene expression to the skeletal muscle was also examined by comparing it with the cytomegalovirus (CMV) promoter after systemic administration following surgically induced HLI. Despite reduced blood flow to the ischemic limbs, CK6 promoter-driven luciferase activities in the ischemic gastrocnemius (GA) muscles were ∼34-, ∼28- and ∼150-fold higher than in the fully perfused contralateral GA, heart and liver, respectively, 10 days after IV administration. Furthermore, luciferase activity from the CK6 promoter in the ischemic GA muscles was ∼twofold higher than with CMV, while in the liver CK6-driven activity was ∼42-fold lower than with CMV, demonstrating that the specificity of ischemic skeletal muscle transduction can be further improved with the muscle-specific promoters. Studies with Evans blue dye and fluorescently labeled lectins revealed that vascular permeability and desialylation of the cell-surface glycans were increased in the ischemic hindlimbs. Furthermore, AAV9/CK6/Luc vector genome copy numbers were ∼sixfold higher in the ischemic muscle compared with the non-ischemic muscle in the HLI model, whereas this trend was reversed when the same genome was packaged in the AAV-1 capsid (which binds sialylated, as opposed to desialylated glycans), further underscoring the importance of desialylation in the ischemic enhancement of transduction displayed by AAV-9. Taken together, these findings suggest two complementary mechanisms contributing to the preferential transduction of ischemic muscle by AAV-9: increased vascular permeability and desialylation. In conclusion, ischemic muscle is preferentially targeted following systemic administration of AAV-9 in a mouse model of HLI. Unmasking of the primary AAV-9 receptor as a result of ischemia may contribute importantly to this effect.


Assuntos
Dependovirus/fisiologia , Terapia Genética , Isquemia/terapia , Músculo Esquelético/irrigação sanguínea , Músculo Esquelético/metabolismo , Doença Arterial Periférica/terapia , Animais , Dependovirus/genética , Dependovirus/metabolismo , Genes Reporter , Vetores Genéticos , Membro Posterior/irrigação sanguínea , Humanos , Isquemia/genética , Isquemia/metabolismo , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Endogâmicos C57BL , Doença Arterial Periférica/metabolismo , Polissacarídeos/metabolismo , Regiões Promotoras Genéticas , Transdução Genética
8.
J Insect Sci ; 12: 5, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22943569

RESUMO

Use of repellents seems to be most reliable method of personal protection against annoyance and infections associated with haematophagous insects. We have investigated the biting activity of Simulium and tested the repellency of five essential oils extracted from Homalomena aromatica Schott (Alismatales: Araceae), Pogostemon heyneanus Bentham (Lamiales: Lamiaceae), Citrus aurantifolia Swingle (Sapindales: Rutaceae), Vitex negundo L. (Lamiales: Lamiaceae), and Ageratum conzoides L. (Asterales: Asteraceae) on the human volunteers against Simulium (blackflies) in three locations of Arunachal Pradesh, India. Blackflies preferred biting legs (> 79%) as compared to hand and face with profound biting activity during 1000-1100 h (> 23%) and 1500 - 1600 h (> 28%). The essential oil extracted from Homalomena aromatica, Vitex negundo and Ageratum conizoides provided > 2 h protection at 5% concentration and > 5 h protection at 10% concentration in all the three testing locations. The repellency of Homalomena aromatica, Vitex negundo and Ageratum conizoides essential oils after 6 h application was > 50% at 5% concentration and > 90% at 10% concentration. The study provides evidence for the potential of these essential oils in developing new repellents against blackflies.


Assuntos
Repelentes de Insetos/farmacologia , Magnoliopsida/química , Óleos Voláteis/farmacologia , Simuliidae/efeitos dos fármacos , Simuliidae/fisiologia , Animais , Relação Dose-Resposta a Droga , Comportamento Alimentar , Feminino , Índia , Óleos de Plantas/farmacologia , Especificidade da Espécie
9.
Trop Biomed ; 29(3): 391-7, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23018502

RESUMO

In the present study we have evaluated the repellent activity of mixture of Curcuma longa, Zanthoxylum limonella and Pogostemon heyneanus essential oils in 1:1:2 ratio at 5%, 10% and 20% concentration against blackflies in northeastern India. Initially the essential oil mixture tested here has been found effective against Aedes albopictus mosquitoes. The average protection recorded in 20% concentration (170.56 ± 4.0; 95% CI = 162.09-179.02) was higher as compared to other two concentrations (F = 90.2; p<0.0001; df = 53). Percentage repellency and repellency index was found to be higher in 20% concentration (p ≤ 0.017). No appreciable clinical and behavioral signs were observed in the acute dermal toxicity using rat model. No changes were observed in biochemical profiles of treatment group animals. Similarly, no prominent lesions were observed in vital organs of treatment in both the sexes. The study concludes that tested repellent is safe for use and has multi-insects repellent property.


Assuntos
Curcuma/química , Repelentes de Insetos/farmacologia , Lamiaceae/química , Óleos Voláteis/farmacologia , Simuliidae/efeitos dos fármacos , Zanthoxylum/química , Aedes/efeitos dos fármacos , Animais , Feminino , Índia , Masculino , Óleos de Plantas/química , Óleos de Plantas/farmacologia , Ratos , Ratos Wistar , Testes de Toxicidade Aguda
10.
IET Syst Biol ; 6(2): 44-53, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22519357

RESUMO

The genetic regulatory network responds dynamically to perturbations in the intracellular and extracellular environments of an organism. The GAL system in the yeast Saccharomyces cerevisiae has evolved to utilise galactose as an alternative carbon and energy source, in the absence of glucose in the environment. This work contains a modified dynamic model for GAL system in S. cerevisiae, which includes a novel mechanism for Gal3p activation upon induction with galactose. The modification enables the model to simulate the experimental observation that in absence of galactose, oversynthesis of Gal3p can also induce the GAL system. Subsequently, the model is related to growth on galactose and glucose in a structured manner. The growth-related models are validated with experimental data for growth on individual substrates as well as mixed substrates. Finally, the model is tested for its prediction of a variety of known mutant behaviours. The exercise shows that the authors' model with a single set of parameters is able to capture the rich behaviour of the GAL system in S. cerevisiae. [Includes supplementary material].


Assuntos
Redes Reguladoras de Genes , Modelos Biológicos , Mutação , Saccharomyces cerevisiae/citologia , Saccharomyces cerevisiae/genética , Proliferação de Células/efeitos dos fármacos , Meios de Cultura/química , Galactose/farmacologia , Deleção de Genes , Regulação Fúngica da Expressão Gênica/efeitos dos fármacos , Redes Reguladoras de Genes/efeitos dos fármacos , Glucose/farmacologia , Proteínas de Transporte de Monossacarídeos/deficiência , Proteínas de Transporte de Monossacarídeos/genética , Proteínas de Transporte de Monossacarídeos/metabolismo , Saccharomyces cerevisiae/efeitos dos fármacos , Saccharomyces cerevisiae/metabolismo , Proteínas de Saccharomyces cerevisiae/genética , Proteínas de Saccharomyces cerevisiae/metabolismo
11.
J Vet Pharmacol Ther ; 35(3): 224-30, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-21732952

RESUMO

Fenoldopam is a selective dopamine-1 receptor agonist that causes peripheral arterial vasodilation, increased renal blood flow, and diuresis. Enthusiasm exists for the use of fenoldopam in nonpolyuric kidney injury in dogs, although pharmacokinetic data are lacking. The purpose of this study was to collect basic pharmacokinetic and hemodynamic effect data for fenoldopam when administered to healthy awake dogs. Six healthy, awake beagles were given a 180-min fenoldopam constant rate infusion at 0.8 µg/kg per minute followed by a 120-min washout period. Citrated blood was collected during and after infusion for the measurement of plasma fenoldopam concentration by HPLC with mass spectrometry. Heart rate and indirect systolic blood pressure were concurrently measured. Mean ± SD, steady-state plasma fenoldopam concentrations of 20 ± 17 ng/mL were achieved within 10 min of starting the infusion. Area under the plasma concentration-time curve was 3678 ± 3030 ng/mL · min, and plasma clearance was 66 ± 43 mL/min per kg. Elimination was rapidly achieved in all dogs. Heart rate and systolic blood pressure were unaffected by the fenoldopam infusion. Based on the results of this study, further evaluation of the effects of fenoldopam in dogs at differing doses and in dogs with clinical conditions such as acute nonpolyuric kidney injury is warranted.


Assuntos
Pressão Sanguínea/efeitos dos fármacos , Fenoldopam/farmacologia , Frequência Cardíaca/efeitos dos fármacos , Receptores de Dopamina D1/agonistas , Animais , Cromatografia Líquida de Alta Pressão , Cães , Feminino , Fenoldopam/administração & dosagem , Fenoldopam/sangue , Fenoldopam/farmacocinética , Infusões Intravenosas , Masculino , Taxa Respiratória/efeitos dos fármacos
12.
Tropical Biomedicine ; : 391-397, 2012.
Artigo em Inglês | WPRIM (Pacífico Ocidental) | ID: wpr-630176

RESUMO

In the present study we have evaluated the repellent activity of mixture of Curcuma longa, Zanthoxylum limonella and Pogostemon heyneanus essential oils in 1:1:2 ratio at 5%, 10% and 20% concentration against blackflies in northeastern India. Initially the essential oil mixture tested here has been found effective against Aedes albopictus mosquitoes. The average protection recorded in 20% concentration (170.56±4.0; 95% CI = 162.09-179.02) was higher as compared to other two concentrations (F = 90.2; p<0.0001; df = 53). Percentage repellency and repellency index was found to be higher in 20% concentration (p<0.017). No appreciable clinical and behavioral signs were observed in the acute dermal toxicity using rat model. No changes were observed in biochemical profiles of treatment group animals. Similarly, no prominent lesions were observed in vital organs of treatment in both the sexes. The study concludes that tested repellent is safe for use and has multi-insects repellent property.

13.
J Environ Sci Eng ; 53(3): 289-98, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23029930

RESUMO

Assam (India) is endowed with natural resources like oil, coal and natural gas. The crude oil, one of the most precious natural resources, is found in the districts of upper Assam. During the process of extraction of crude oil, low-pressure natural gas is burnt in the air. Most of the oil wells in upper Assam are located near rice fields and therefore, rice crop grown near the oil wells is exposed to light uninterruptedly causing grain sterility resulting significant loss in grain yield. To identify promising varieties for these areas, we studied the effect of flare on rice varieties with different photoperiod sensitivity. The high light intensity and increased light hours were the factors responsible for substantial loss in grain yield near the flare resulting from delay in flower initiation, reduction of panicle length, having less number of grains per panicle and more grain sterility. To prevent significant loss in yield, photoperiod-sensitive traditional and improved rice varieties should not be grown up to the distance of 80 and 100 m, respectively from the boundary wall of the flare pit. Modern weakly-photoperiod sensitive varieties like Ranjti and Mahsuri can be grown 40 m away from the wall while modern photoperiod insensitive variety like Jaya, can be cultivated 20 m away from the wall without significant loss in yield.


Assuntos
Agricultura/métodos , Produtos Agrícolas/efeitos dos fármacos , Gás Natural , Oryza/fisiologia , Produtos Agrícolas/fisiologia , Monitoramento Ambiental , Poluentes Ambientais/análise , Índia , Campos de Petróleo e Gás , Oryza/efeitos dos fármacos , Petróleo , Fotoperíodo , Solo , Especificidade da Espécie , Temperatura , Fatores de Tempo
14.
J Environ Sci Eng ; 52(3): 221-8, 2010 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-21391395

RESUMO

Rice crop (var. Luit) was grown under controlled conditions in paper mill effluent contaminated soil and irrigated with undiluted paper mill effluent as well as normal water and compared the results against a control treatment consisting of similar unaffected soil irrigated with normal water. The effluent was alkaline (pH 7.5), containing high soluble salts (EC 2.93 dS m(-1)), chloride (600 mg L(-1)) and total dissolved solids (1875 mg L(-1)). At maximum tillering (MT) stage effluent irrigation significantly (P < 0.05) reduced the leaf numbers per hill and leaf area by 19.8 and 36.4 %, respectively. Tiller number and maximum root length were reduced by 19.3% and 12.5%, respectively at fifty percent flowering (FF) stage. Effluent irrigated crop recorded significant reduction in the dry matter production (17.5-24.9%) and grain yield (19%). Unfilled grain was increased by 10.7%. Higher concentration of sodium, calcium and magnesium in the effluent irrigated soil affected K uptake. Available soil P was lowest while available N, K, S and exchangeable and water soluble Na, K, Ca, Mg were highest in effluent irrigated soil. Chloride content found to increase (3-7 folds) while microbial biomass carbon reduced (10-37%). The adverse effect of the paper mill effluent on the crop as well as on the affected soil could be reduced significantly through normal water irrigation.


Assuntos
Irrigação Agrícola/métodos , Resíduos Industriais , Oryza/crescimento & desenvolvimento , Papel , Biomassa , Elementos Químicos , Índia , Resíduos Industriais/efeitos adversos , Resíduos Industriais/análise , Oryza/efeitos dos fármacos , Poluentes do Solo/efeitos adversos , Poluentes do Solo/análise , Eliminação de Resíduos Líquidos
15.
J Biosci ; 34(2): 287-92, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-19550044

RESUMO

We recorded the in vivo emission and time-resolved spectra of the firefly Luciola praeusta Kiesenwetter 1874 (Coleoptera : Lampyridae : Luciolinae). The emission spectrum shows that the full width at half maximum (FWHM) value for this particular species is 55 nm, which is significantly narrower than the in vivo half-widths reported till now. The time-resolved spectrum reveals that a flash of about 100 ms duration is, in fact, composed of a number of microsecond pulses. This suggests that the speed of the enzyme-catalysed chemiluminescence reaction in the firefly for the emission of light is much faster than was previously believed.


Assuntos
Besouros/metabolismo , Luminescência , Trifosfato de Adenosina/química , Animais , Catálise , Besouros/genética , Enzimas/química , Luciferina de Vaga-Lumes/química , Luz , Modelos Genéticos , Oscilometria/métodos , Oxigênio/química , Espectrofotometria/métodos , Fatores de Tempo
16.
Natl Med J India ; 22(4): 199-203, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-20120996

RESUMO

Public health law focuses on the nexus between law, public health and the legal tools applicable to public health issues. Though there have been consistent interventions to address public health concerns in the past, there exists a need for a contemporary framework to appropriately use modern legal tools for complex health challenges. We identify a checklist of imperative indicators to assess whether public health legislations would be an effective form of intervention to bring about the desired social change.


Assuntos
Saúde Pública/legislação & jurisprudência , Mudança Social , Análise Custo-Benefício , Comportamentos Relacionados com a Saúde , Humanos , Índia , Legislação Médica/economia , Medição de Risco
17.
Int J Food Sci Nutr ; 59(7-8): 671-8, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-19382338

RESUMO

In addition to their use as food and spice, chillies have been popular in both Ayurvedic and homoeopathic treatments since ancient times. Elemental analyses on their seeds with the help of X-ray fluorescence spectra reveal the presence of hitherto undetected magnesium, along with sulphur and chlorine. Fourier transform infrared and Fourier transform Raman spectra of the seeds reveal the presence of specific functional groups, attributed to the different bands present in the spectra. Ascorbic acid, reported to be the vitamin present in maximum amount in chilli peppers, is conspicuous by its absence in the seeds.


Assuntos
Capsicum/química , Sementes/química , Análise Espectral , Oligoelementos/química
18.
Injury ; 37(9): 877-87, 2006 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16895727

RESUMO

AIMS: We report our experiences with minimally invasive locking plate osteosynthesis (MILPO), for distal tibia fractures, with specific reference to fracture union and complications encountered. PATIENTS AND METHODS: Twenty patients underwent MILPO for open and closed distal tibia fractures between March 2003 and December 2004. Fractures were classified according to the AO system. Open fractures were graded using the Gustilo and Anderson classification and closed fractures via the Tscherne classification system. RESULTS: There were 16 males and 4 females of mean age 44.7 years (range 19-69 years). Thirteen patients had temporary external fixation, prior to definitive fracture fixation. Minimum follow-up was 12 months and average time to full weight bearing in the closed fracture group (12 patients) was 18.1 weeks (range 8-32 weeks) and 19.3 weeks in the open fracture group (8 patients, range 8-44 weeks). Fracture healing was defined as radiological evidence of bridging mature callus combined with pain-free full weight bearing. In the open fracture group, four fractures united within 6 months, one within 6-12 months and one united 12 months after surgery; there were two cases of non-union. In the closed fracture group, seven fractures united within 6 months, three fractures between 6 and 12 months and two after 12 months from surgery. Two of the 20 patients required additional procedures to aid bone healing in the post-operative period. Three of the 20 patients required metalwork removal, for delayed wound breakdown in two cases and wound infection in one case. An uneventful recovery was made following this, in all three cases. There was one case of implant failure due to plate breakage at 32 weeks post-op. The fracture site was opened and re-plated at 32 weeks with a DCP. There were no complications following this. CONCLUSION: MILPO was used for definitive fixation of high energy, open and closed, peri-articular distal tibia fractures. This approach aims to preserve bone biology and minimise surgical soft tissue trauma. This surgical approach may provide an answer to treating a challenging group of fractures and further research is warranted.


Assuntos
Placas Ósseas , Fixação Interna de Fraturas/instrumentação , Consolidação da Fratura/fisiologia , Procedimentos Cirúrgicos Minimamente Invasivos/instrumentação , Fraturas da Tíbia/cirurgia , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Radiografia , Fraturas da Tíbia/diagnóstico por imagem , Resultado do Tratamento
19.
Indian Heart J ; 58(6): 405-8, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-19057049

RESUMO

AIMS: This study aimed to ascertain the prevalence of hypertension among an urban population of Dibrugarh district in Upper Assam and to study the profile of lipid abnormalities in the hypertensives. METHODOLOGY: The study was conducted for a period of one year - from 1 April 2003 to 31 March 2004, and covered 1005 persons selected from a population of approximately 200,000 urban dwellers of Dibrugarh town in Upper Assam. Hypertension was defined on the basis of the Joint National Committee VII criteria and dyslipidemia on the basis of the Adult Treatment Panel III guidelines. The fasting lipid profile was determined for hypertensives as well as controls who did not have hypertension. RESULTS: The prevalence of hypertension in the selected population was found to be 27.9%, of which 54% of those with hypertension also had dyslipidemia. The maximum incidence of hypertension as well as dyslipidemia was observed in the age group of 50-59 years. Of the hypertensives, 34.4% had an elevated level of total cholesterol (>/= 200 mg%), 25.2% had elevated triglycerides (>/= 200 mg%), 33.1% had elevated low-density lipoprotein-cholesterol (>/= 130 mg%), and 22.5% had a low high-density lipoprotein cholesterol level (< 40 mg%). CONCLUSION: The prevalence of hypertension in this population was higher than the national average of 23%. Dyslipidemia was present in 54% of the hypertensives. Most hypertensives were smokers or alcoholics, and had a higher body mass index than the normotensives and a positive family history. These findings suggest the possibility that this population would be relatively more vulnerable to coronary and cerebrovascular diseases.

20.
Natl Med J India ; 18(4): 178-81, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-16252545

RESUMO

BACKGROUND: Breast conservation therapy is a well-established treatment modality for early breast cancer. It is not widely practised in developing countries because of a lack of awareness and treatment facilities, and physician and patient bias. We analysed our experience of breast conservation therapy. METHODS: We retrospectively reviewed 102 patients who had undergone breast conservation surgery and axillary dissection for breast cancer. Surgery was followed by 45 Gy of radiation to the whole breast and 15-20 Gy of tumour bed boost. All high risk patients received adjuvant systemic therapy. The disease profile, morbidity and treatment outcome were analysed. RESULTS: Out of 902 patients, 102 underwent breast conservation therapy (90 had early breast cancer and 12 had locally advanced breast cancer). Only 19.6% of patients with early breast cancer received breast conservation therapy. One-third of the patients had had a prior surgical intervention. The mean tumour size was 2.8 cm, 44% had nodal involvement and 29% were oestrogen- and progesterone-receptor negative. At a mean follow up of 32 months, only 1 patient had local recurrence, and the 5-year projected disease-free and overall survival were 82% and 88%, respectively. CONCLUSION: Breast conservation therapy should be offered to suitable breast cancer patients. Strict adherence to protocol-based therapy and active multidisciplinary coordination are crucial for a successful breast conservation therapy programme. Education of the patient as well as the physician population is necessary for increasing the breast conservation therapy rates in India.


Assuntos
Neoplasias da Mama/cirurgia , Mastectomia Segmentar , Adulto , Idoso , Neoplasias da Mama/mortalidade , Feminino , Humanos , Pessoa de Meia-Idade , Dosagem Radioterapêutica , Estudos Retrospectivos , Resultado do Tratamento
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