66 research outputs found

    Clinical Evaluation of Oxidative Stress in Women with Breast Cancer

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    Breast cancers are potentially life-threatening malignancies in women. Development of cancer produces oxidative stress, which increases with disease progression. Hence, studies on antioxidants may be the most promising area of research for this clinical menace. We analysed serum Uric acid (UA) and Bilirubin (BR) in women with breast cancer. The changes in the levels of serum uric acid and bilirubin are measured in breast cancer patients to assess the oxidative stress. A significant increase in the levels of uric acid and an insignificant increase in the levels of bilirubin was observed in all the three categories of breast cancer patients compared to normal individuals. The results suggested that high ROS production supports the oxidative stress in breast cancer. So, the treatment with antioxidants in the initial stages of the disease may be useful as secondary therapy

    Alterations in Serum SOD and CAT Levels in Patients with Breast Cancer

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    Breast cancers are potentially life-threatening malignancies in women. Development of cancer produces oxidative stress, which increases with disease progression. Hence, studies on antioxidants may be the most promising area of research for this clinical menace. We analysed serum superoxide dismutase (SOD), catalase (CAT) in women with breast cancer. The changes in the levels of serum superoxide dismutase and catalase are measured in breast cancer patients to assess the oxidative stress. A significant increase in the level of superoxide dismutase and a lower catalase activity was observed in all the three categories of breast cancer patients compared to normal individuals. The results suggested that high ROS production supports the oxidative stress in breast cancer. So, the treatment with antioxidants in the initial stages of the disease may be useful as secondary therapy

    R.A.Fisher, design theory, and the Indian connection

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    Design Theory, a branch of mathematics, was born out of the experimental statistics research of the population geneticist R. A. Fisher and of Indian mathematical statisticians in the 1930s. The field combines elements of combinatorics, finite projective geometries, Latin squares, and a variety of further mathematical structures, brought together in surprising ways. This essay will present these structures and ideas as well as how the field came together, in itself an interesting story.Comment: 11 pages, 3 figure

    Processing of leather using deep eutectic solvents

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    Processing of leather has an historical reputation as a chemically and energetically intensive process that produces large volumes of aqueous waste. Saline pollution combined with heavy-metal, dyes and acid and base streams make leather production an ecologically sensitive industry. The current study shows that a variety of deep eutectic solvents (DESs) may be used for the tanning, fatliquoring and dyeing of animal hides, being particularly useful for mineral (chromium) and vegetable tanning processes. The tanning agents are able to penetrate rapidly into the hide, driven by lyotropic swelling due to their high ionic strength. The samples are shown to have similar tanning agent content to the currently used aqueous chromium(III) sulfate solution; however, the waste metal content is shown to be significantly reduced. Incorporation of the DES Ethaline into the leather significantly alters the swelling properties of the leather increasing the flexibility and ductility of the material, therefore acting in the same manner as a fatliquor that lubricates or plasticizes the fibrous structure of the collagen. Ethaline was also used to transport a lysochromic dye throughout the cross section of the leather, and the hydrophobicity of the dye prevents leaching into the aqueous wash solution. Physical measurements show that leather processed using DESs have similar mechanical properties to that processed using conventional aqueous systems

    Neurodevelopmental disorders in children aged 2-9 years: Population-based burden estimates across five regions in India.

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    BACKGROUND: Neurodevelopmental disorders (NDDs) compromise the development and attainment of full social and economic potential at individual, family, community, and country levels. Paucity of data on NDDs slows down policy and programmatic action in most developing countries despite perceived high burden. METHODS AND FINDINGS: We assessed 3,964 children (with almost equal number of boys and girls distributed in 2-<6 and 6-9 year age categories) identified from five geographically diverse populations in India using cluster sampling technique (probability proportionate to population size). These were from the North-Central, i.e., Palwal (N = 998; all rural, 16.4% non-Hindu, 25.3% from scheduled caste/tribe [SC-ST] [these are considered underserved communities who are eligible for affirmative action]); North, i.e., Kangra (N = 997; 91.6% rural, 3.7% non-Hindu, 25.3% SC-ST); East, i.e., Dhenkanal (N = 981; 89.8% rural, 1.2% non-Hindu, 38.0% SC-ST); South, i.e., Hyderabad (N = 495; all urban, 25.7% non-Hindu, 27.3% SC-ST) and West, i.e., North Goa (N = 493; 68.0% rural, 11.4% non-Hindu, 18.5% SC-ST). All children were assessed for vision impairment (VI), epilepsy (Epi), neuromotor impairments including cerebral palsy (NMI-CP), hearing impairment (HI), speech and language disorders, autism spectrum disorders (ASDs), and intellectual disability (ID). Furthermore, 6-9-year-old children were also assessed for attention deficit hyperactivity disorder (ADHD) and learning disorders (LDs). We standardized sample characteristics as per Census of India 2011 to arrive at district level and all-sites-pooled estimates. Site-specific prevalence of any of seven NDDs in 2-<6 year olds ranged from 2.9% (95% CI 1.6-5.5) to 18.7% (95% CI 14.7-23.6), and for any of nine NDDs in the 6-9-year-old children, from 6.5% (95% CI 4.6-9.1) to 18.5% (95% CI 15.3-22.3). Two or more NDDs were present in 0.4% (95% CI 0.1-1.7) to 4.3% (95% CI 2.2-8.2) in the younger age category and 0.7% (95% CI 0.2-2.0) to 5.3% (95% CI 3.3-8.2) in the older age category. All-site-pooled estimates for NDDs were 9.2% (95% CI 7.5-11.2) and 13.6% (95% CI 11.3-16.2) in children of 2-<6 and 6-9 year age categories, respectively, without significant difference according to gender, rural/urban residence, or religion; almost one-fifth of these children had more than one NDD. The pooled estimates for prevalence increased by up to three percentage points when these were adjusted for national rates of stunting or low birth weight (LBW). HI, ID, speech and language disorders, Epi, and LDs were the common NDDs across sites. Upon risk modelling, noninstitutional delivery, history of perinatal asphyxia, neonatal illness, postnatal neurological/brain infections, stunting, LBW/prematurity, and older age category (6-9 year) were significantly associated with NDDs. The study sample was underrepresentative of stunting and LBW and had a 15.6% refusal. These factors could be contributing to underestimation of the true NDD burden in our population. CONCLUSIONS: The study identifies NDDs in children aged 2-9 years as a significant public health burden for India. HI was higher than and ASD prevalence comparable to the published global literature. Most risk factors of NDDs were modifiable and amenable to public health interventions

    Combinatorics and applications to experimental designs

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    We present an overview of the developments in combinatorial mathematics starting from the fundamental early contributions made by Professor Bose and some of the applications to experimental designs. We discuss in particular the impact of Bose's contributions in research on orthogonal latin squares, orthogonal arrays, incomplete block designs, and factorial experiments

    INFLUENCE OF PRESTRESSING FORCE ON BOX GIRDER BRIDGE SUBJECTED TO SEISMIC LOAD

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    Bridges are often considered to be engineering marvels. Whether we need to cross rivers or valleys, connect islands to mainland, carry cars people etc are obstacles that are achieved only by bridges. Pre stressed concrete is ideally suited for the construction of medium to long span bridges. The composition of pre stressed concrete is nothing but high strength concrete and high tensile steel which is aesthetically appealing and economical. The present study deals with the analysis of reinforced concrete and prestressed concrete bridges. Reinforced concrete and Post-tensioned bridges of spans 15m, 30m and 45m are considered. Analysis of these bridges is performed with SAP2000 software for various Earthquake zones. The bending moments due to load combinations, viz.,(Dead load+ live load), (Dead load+ Earthquake load in X-direction), (Dead load+ Earthquake load in Y-direction), (Dead load+ live load+ Earthquake load in X-direction) and (Dead load+ live load+ Earthquake load in Y-direction) by considering with and without application of prestressing are obtained and compared. Maximum deflections under these load combinations are obtained by considering with and without application of prestressing and compared

    Evaluation of antioxidant potential of <i style="">Clitoria ternata </i>L.<i style=""> </i>and <i style="">Eclipta prostrata </i>L.<i style=""></i>

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    247-252Free radical-mediated oxidative stress is believed to be the primary cause of many disorders, such as cardiovascular diseases, brain dysfunction, cataract, diabetes mellitus, arthritis, cancer, ageing etc. In treatment of these diseases, antioxidant therapy has gained an utmost importance in the recent years. Current research is now directed towards finding naturally occurring antioxidants of plant origin. In Indian system of medicine, Clitoria ternata L. and Eclipta prostrata L. are the important medicinal plants, which have a wide range of applications. In the present study, the antioxidant potential of aqueous extracts of C. ternata and E. prostrata was evaluated by determining the levels of enzymatic and non-enzymatic antioxidants. In vitro antioxidant capacity was also determined using different assays and the results were compared with standard antioxidants such as butylated hydroxy toluene (BHT), ascorbic acid and rutin. Our results showed that both plant extracts possessed significant levels of enzymatic and non-enzymatic antioxidants and also exhibited antioxidant capacity. However, C. ternata showed higher levels of enzymatic and non-enzymatic antioxidants, as compared to E. prostrata. In addition, the antioxidant capacity of C. ternata was observed to be significant as compared to E. prostrata.</i

    Analysis of modes of heat transfer in tandoor oven

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    Individual modes of heat transfer were estimated for the baking of roti, an Indian traditional product, in a tandoor oven. Mathematical expressions were proposed for the heat adsorbed by and transferred to roti during baking. Heat transfer parameters such as thermal conductivity and emissivity for roties were determined. Conduction and radiation from refractory surfaces were more prominent (51.4 and 44.0%, respectively) than other modes of heat transfer, and conduction contributed more to the product quality aspects when compared to other modes of heat transfer

    Rhinosporidiosis - A Case Report

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    A case of Rhinosporidiosis with an unusual feature of origin in the lower eyelid with spread to the naso-maxillary area and chronicity of 22 years is presented
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