118 research outputs found

    Correlation of hemoglobin with creatinine clearance, antioxidant status, lipid peroxidation and ceruloplasmin in patients with chronic kidney disease

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    Background: Anaemia in CRF is caused primarily by a combination of depressed erythropoiesis and shortened erythrocyte lifespan caused by oxidative stress. Therefore, the present study was designed to investigate the correlation between Hb concentration and antioxidant and lipid peroxidation levels.Methods: The study group consisted of 50 patients with chronic kidney disease who were on conservative treatment with the age group of 20 to 60 years. Based on the creatinine clearance values the patients were assigned in to 3 groups; Stage 3, Stage- 4 and Stage- 5 as per NKF DOQI guidelines. Control group consisted of 50 age and sex matched, non-diabetic, non-smoker healthy volunteers. About 5 ml of blood was collected and serum was used for the estimation of superoxide dismutase, ceruloplasmin and malondialdehyde and haemoglobin level using standard methods. The correlations between the different groups are performed by applying Pearson’s correlation test. The p value of ≤0.05 was taken as the level of significance.Results: A positive correlation of Hb with creatinine clearance (r=0.46, p=0.001), SOD level(r=0.4, p=0.009), serum ceruloplasmin (r=0.3, p=0.07) was observed. Significant positive correlation was found between creatinine clearance and SOD level (r=0.4, p=0.008), ceruloplasmin (r=0.3, p=0.04). A negative correlation was obtained between serum malondialdehyde levels and haemoglobin concentration (r=-0.4, p=0.007) and between creatinine clearance and MDA levels (r=-0.4, p=0.01).Conclusions: The study provides a better understanding of the biochemical parameters underlying anaemia in chronic kidney disease. The increased production of ROS and deficiency of antioxidant enzymes altered the oxidant and antioxidant equilibrium in the plasma of CKD patients

    To evaluate the hemoglobin concentration, lipid peroxidation and antioxidant status in patients with chronic kidney disease

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    Background: Oxidative stress plays an important role in the progression of CKD as well as in many of the complications associated with the disease. ROS promotes inflammation, accelerated ageing, fibrosis and apoptosis leading to progression of CKD. Therefore, the present study was carried out to evaluate the serum markers for early diagnosis of patients at different stages of chronic kidney disease.Methods: The study group consisted of 50 patients with chronic kidney disease who were on conservative treatment with the age group of 20 to 60 years. Based on the creatinine clearance values the patients were assigned in to 3 groups; Stage 3, Stage- 4 and Stage- 5 as per NKF DOQI guidelines. Control group consisted of 50 age and sex matched, non-diabetic, nonsmoker healthy volunteers. About 5 ml of blood was collected and serum was used for the estimation of superoxide dismutase, ceruloplasmin and malondialdehyde and haemoglobin level using standard methods. The data was analyzed by applying student’s t test. The p value of ≤0.05 was taken as the level of significance.Results: The haemoglobin concentration in all the 3 CKD stages was found to be significantly decreased (p<0.000) whereas, the serum malondialdehyde (MDA) was significantly increased (p=0.000) in patients with CKD. But serum SOD and ceruloplasmin levels of normal and patients with CKD showed significant decline (p<0.000) only in stage 5 whereas, in stage-2 and stage-3 patients it did not show significant variation.Conclusions: The results of the study reinforce the possibility that antioxidant supplementation may be helpful in correcting anaemia in chronic kidney disease. Treatment of renal anaemia is an effective intervention to ensure better quality of life, to prevent adverse cardiovascular outcomes and to retard the progression of chronic kidney disease so as to reduce the burden of end stage renal disease in the long run

    Data Placement in Object Storage Based Multiple Containers in Cloud Environment

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    Cloud computing is an Internet based processing where virtual shared servers give programming and different resources. Cloud storage is only capacity of information on outsider cloud servers. The benefits are boundless capacity, backup and recovery. The bad marks are specialized issues, cost and absence of backing in security. In This paper, we made to build an application for cloud security in IBM bluemix cloud to partition the data and storing them into multiple containers of object storage. Object storage is a resource which is used in IBM bluemix cloud to store a data. Hence the data is retrieve when needed by merging it. An proposed efficient data placement algorithm is used. This will consider how to place the files efficiently to the containers in object storage. Beside, the files will merge when client needs it back. So some additional algorithms is also used for partitioning and merging of files. Our goal is to achieve good security for cloud storage system, through proposed algorithm by using multiple containers of object storage in cloud

    Detection of Features to Track Objects and Segmentation Using GrabCut for Application in Marker-less Augmented Reality

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    AbstractAugmented Reality applications have hovered itself over various platforms such as desktop and most recently to handheld devices such as mobile phones and tablets. Augmented Reality (AR) systems have mostly been limited to Head Worn Displays with start-ups such as Magic Leap and Occulus Rift making tremendous advancement in such AR and VR research applications facing a stiff competition with Software giant Microsoft which has recently introduced Holo Lens. AR refers to the augmentation or the conglomeration of virtual objects in the real world scenario which has a distinct but close resemblance to Virtual Reality (VR) systems which are computer simulated environments which render physical presence in imaginary world. Developers and hackers round the globe have directed their research interests in the development of AR and VR based applications especially in the domain of advertisement and gaming. Many open source libraries, SDKs and proprietary software are available worldwide for developers to make such systems. This paper describes an algorithm for an AR prototype which uses a marker less approach to track and segment out real world objects and then overlay the same on another real world scene. The algorithm was tested on Desktop. The results are comparable with other existing algorithms and outperform some of them in terms of robustness, speed, and accuracy, precision and timing analysis

    Phytomediated synthesis of silver nanoparticles against microbial pathogens and cytotoxicity on human breast cancer cells (MCF-7)

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    Silver nanoparticles (AgNPs) are synthesized from the root extract of the Abutilon indicum plant. Nitrate reductase enzyme and/or other extra cellular proteins released from the extract reduce the silver nitrate to silver ions. These proteins or enzymes serve as a template for the silver nucleation sites in the development of silver nanoparticles, and also act as capping agents, preventing silver ion agglomeration. XRD analysis predicts the phase of the nanoparticles. Transmission Electron Microscope (TEM) and Scanning Electron Microscope analyses have revealed that the synthesized AgNPs are spherical in shape, with an average size of 17 nm. From the data, it is noted that the protein molecules and fatty acids present in the root extract of Abutilon indicum, play a vital role in reducing silver salts and as capping AgNPs at various concentrations. Bactericidal activity acting against the clinical pathogens was performed, and it was observed that NP inhibition is highly dependent on their size and surface. Cytotoxic studies were carried out with these synthesized silver nanoparticles using MTT assay on MCF-7 cells

    Phytomediated synthesis of silver nanoparticles against microbial pathogens and cytotoxicity on human breast cancer cells (MCF-7)

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    Silver nanoparticles (AgNPs) are synthesized from the root extract of the Abutilon indicum plant. Nitrate reductase enzyme and/or other extra cellular proteins released from the extract reduce the silver nitrate to silver ions. These proteins or enzymes serve as a template for the silver nucleation sites in the development of silver nanoparticles, and also act as capping agents, preventing silver ion agglomeration. XRD analysis predicts the phase of the nanoparticles. Transmission Electron Microscope (TEM) and Scanning Electron Microscope analyses have revealed that the synthesized AgNPs are spherical in shape, with an average size of 17 nm. From the data, it is noted that the protein molecules and fatty acids present in the root extract of Abutilon indicum, play a vital role in reducing silver salts and as capping AgNPs at various concentrations. Bactericidal activity acting against the clinical pathogens was performed, and it was observed that NP inhibition is highly dependent on their size and surface. Cytotoxic studies were carried out with these synthesized silver nanoparticles using MTT assay on MCF-7 cells

    The mechanism of nestmate discrimination in the tropical social wasp Ropalidia marginata and its implications for the evolution of sociality

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    We have demonstrated that females of the primitively eusocial tropical wasp Ropalidia marginata can discriminate nestmates from nonnestmates outside the context of their nests. This was accomplished by recroding all behavioural interactions in a neutral arena and comparing tolerance levels. In order for these wasps to make such a discrimination, however, it was essential that after eclosion both the discriminated and the discriminating animals were exposed to their respective natal nests and nestmates. The results suggest that both recognition labels and templates are acquired by the animals from sources outside their body, perhaps from their nest or nestmates. It is thus unlikely that different genetic lines within a colony can be distinguished. We conclude, therefore, that genetic asymmetries created by haplodiploidy, but often broken down by multiple mating and polygyny, are not restored by preferential altruism towards full rather than half sisters by means of kin recognition. Hence we recommend caution in ascribing the multiple origins of eusociality in the Hymenoptera to haplodiploidy

    Surival of remote set seed of the clam Paphia malabarica : Effect of continued submergence and short term exposures to salinity variations

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    Globally clam mariculture is a very popular aquaculture activity. The seed for farming to a great extent comes from the natural bed but in many countries the hatchery produced clam seed is farmed. Most farmers also have adopted the convenient technique of remote setting the seed. Remote setting is the technique of setting the pediveliger larvae produced in hatcheries at sites away from the hatchery usually near the farm site. Paphia malabarica commonly known as the yellow foot clam or textile clam is an important resource and supports a commercial fishery in their places of occurrence. In the present experiment pediveliger larvae of P. malabarica produced in the hatchery of CMFRI at Tuticorin were remote set at the Calicut Marine hatchery complex after a transit period of 26 hrs. They were reared in the hatchery and before transferring these clams to the field two sets of experiments mainly to i) evaluate the effect of continued exposure to different salinities ranging from 0 to 35 ppt and ii) evaluate 10,15,20, and 25 ppt and subsequent revival in ambient salinity of 35 ppt were conducted to understand their tolerance to variations in salinity

    Anemia in relation to body mass index among female students of North Kerala: a pilot study

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    Background: Anemia among women causes many serious health problems and is pervasive in developing country. Many research studies have documented that malnutrition affects body growth and development, especially during the crucial period of adolescence. The association between anemia and body mass index (BMI) is a measure of nutrition and health status of adults. Aim was to study the association between anemia and BMI among female students.Methods: An observational study was conducted among first year medical and dental female students (n=109) aged 18-20years. Hemoglobin (Hb) levels (g/dL) by Sahli’s hemoglobinometer and BMI (kg/m2) were estimated. Anemia was defined as Hb content <12g/dL. Subjects were classified by BMI categories as underweight (BMI <18.5kg/m2), normal weight (BMI:18.5-24.99kg/m2), overweight (BMI ≥25kg/m2) and obesity (BMI ≥30kg/m2) according to WHO. Then the relation between anemia and BMI were statistically analyzed.Results: Overall, 48.62% female students were anemic. Of which 43.4% were underweight, 22.6% normal weight and 34.5% were above normal weight (over weight and obese). Mean value of hemoglobin was significantly decreased in underweight and overweight compared to normal weight (p<0.001). Anemia was significantly associated with BMI (χ2 =46.48, p=0.000).Conclusions: The study concludes the occurrence of anemia in both undernourished and over-nourished individuals which were significantly associated. Further studies are needed with larger sample size to document the factors that may be associated with anemia in females

    Cultch preference and growth of remote-set spat of the backwater oyster, Crassostrea madrasensis, in varied salinities

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    Remote setting is the method of setting larvae of bivalves in distant areas, away from the hatchery after transporting eyed larvae (pediveliger) in cool and moist condition without water. The advantages are that hatcheries need not be established near the farms, transportation charges for cultch with spat can be completely eliminated and loss due to transportation stress can be minimized. In India, the first success in remote setting of edible oyster larvae has been done at CMFRI in 2000 when larvae from east coast were set at Cochin. This study indicated the scope for developing this technique for edible oyster, Crassostrea madrasensis. In the present study remote setting was done and simultaneously the cultuch preference and the growth of the spat in different salinities were studied
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