EVALUATION OF HEAMAGGLUTINATION AND ANTI-CANCER POTENTIAL FROM INDIAN DIETARY PLANTS

Objective: To evaluate the agglutination and anti-cancer activity of different dietary plants, commonly used in Indian dietary system for its therapeutic applications.Methods: Sap/phloem exudates from different dietary plants were collected in phosphate buffer saline (PBS) was evaluated for lectin activity by using haemagglutination method in serial dilution manner. Anticancer activity of the different samples was evaluated against Ehrlich ascites carcinoma (EAC) cells by using trypan blue exclusion method.Results: Samples belongs to Cucurbitaceae family showed promising lectin activity among test samples. Praecitrullus fistulosus and Cucumis prophetarum give 256HU/mg whereas Cucumis dipsauses gives 128HU/mg activity, whereas Abelmoschus esculentus (16HU) which gives low lectin activity. Praecitrullus fistulosus shows anticancer activity 67.38% inhibition at 200µg concentration followed by Cucumis prophetum of 56.36% at 200µg concentration against Ehrlich ascites carcinoma (EAC) cells.Conclusion: The present study demonstrated that dietary lectin having a potential role in the biological field. High lectin activity demonstrates the anticancer effect in Ehrlich ascites carcinoma (EAC) model system, in vitro. Further study needs to isolate and evaluate biologically active lectin molecule in order to demonstrate the anticancer effect

ANTIPROLIFERATIVE EFFECTS OF PSIDIUM GUAJAVA LEAF EXTRACT ON ORAL SQUAMOUS CARCINOMA CELLS

Objective: Cancer is the major cause of mortality affecting population irrespective of age. Oral cancer is one among the various cancers affecting major population in India. To overcome toxicity of chemotherapy and disfiguration by surgical procedures, researchers are targeting phytochemicals for their anticancer properties. This study evaluates the antiproliferative effects of Psidium guajava leaf extract against OSC cells. Methods: KB cells were purchased from NCCS, Pune. Extract from leaves of P. guajava was prepared with ethanol and evaluated with high-performance thin-layer chromatography (HPTLC). Antiproliferative effects of the extract were assessed with 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl--tetrazolium bromide (MTT) assay and flow cytometry. Results: HPTLC revealed the presence of quercetin in the extract. MTT assay showed decreasing pattern in cell viability with the increasing dose of extract. Flow cytometry revealed the seizing of cycle by the extract. Conclusion: The study results conclude the presence of antiproliferative properties in the leaf extract of P. guajava

One-Pot Palladium-Catalyzed Ligand- and Metal-Oxidant-Free Aerobic Oxidative Isocyanide Insertion Leading to 2-Amino-substituted-4(3H)-quinazolinones

An efficient, ligand- and metal-oxidant-free, one-pot, cascade aerobic oxidative, palladium-catalyzed, multicomponent reaction has been developed through isocyanide insertion of less active secondary amide and aromatic amine, which leads to 2-amino-substituted-4(3H)-quinazolinones. This approach proves to be one of the simplest methods for the synthesis of this class of valuable bioactive heterocyclic scaffolds

Palladium Catalyzed Aerobic Oxidative Isocyanide Insertion Leading to 2-Amino Substituted 4(3H)-Quinazolinones

An efficient one-pot cascade aerobic oxidative palladium-catalyzed multicomponent reaction was developed through isocyanide insertion between less active amide NH and aromatic amine. This approach leads to an efficient synthesis of 2- amino-substituted 4(3H)-quinazolinones

Simple and Rapid Methods for the Analysis of Captopril in Dosage Forms

Abstract: Two indirect methods are described for the micro determination of captopril using hexacyanoferrate (III) as reagent. The reaction used for titrimetry proceeds at room temperature and will be complete in 10 minute with a stoichiometry of 1:1 with respect to the oxidant and captopril. The reaction product used for spectrophotometric determination shows the absorption maximum at 510 nm. The Beer's law is obeyed over the concentration range 0.25-12.00 µg mL -1 , the molar absorptivity and Sandell sensitivity for the system being 9.14×10 3 L mol -1 cm -1 and 23.78 ng cm -2 , respectively. The limit of detection and quantification are found to be 0.08 and 0.26 µg mL -1 , respectively. Both procedures have been applied to the determination of captopril in tablets. The results have been statistically compared with those obtained by the official (BP) method

Role of biology in the air-sea carbon flux in the Bay of Bengal and Arabian Sea

A physical-biological-chemical model (PBCM) is used for investigating the seasonal cycle of air-sea carbon flux and for assessing the effect of the biological processes on seasonal time scale in the Arabian Sea (AS) and Bay of Bengal (BoB), where the surface waters are subjected to contrasting physical conditions. The formulation of PBCM is given in Swathi et al (2000), and evaluation of several ammonium-inhibited nitrate uptake models is given in Sharada et al (2005). The PBCM is here first evaluated against JGOFS data on surface pCO2 in AS, Bay of Bengal Process Studies (BoBPS) data on column integrated primary productivity in BoB, and WOCE Il data on dissolved inorganic carbon (DIC) and alkalinity (ALK) in the upper 500 meters at 9°N in AS and at 10°N in BoB in September-October. There is good qualitative agreement with local quantitative discrepancies. The net effect of biological processes on air-sea carbon flux on seasonal time scale is determined with an auxiliary computational experiment, called the abiotic run, in which the biological processes are turned off. The difference between the biotic run and abiotic run is interpreted as the net effect of biological processes on the seasonal variability of chemical variables. The net biological effect on air-sea carbon flux is found to be highest in southwest monsoon season in the northwest AS, where strong upwelling drives intense new production. The biological effect is larger in AS than in BoB, as seasonal upwelling and mixing are strong in AS, especially in the northeast, while coastal upwelling and mixing are weak in BoB

Disparities in routine breast cancer screening for medicaid managed care members with a work-limiting disability

Objective: Examine disparities in routine mammography for women who qualify for Medicaid, because of a work-limiting disability. Methods: Individual-level data were obtained for women enrolled in Massachusetts Medicaid Managed Care plans who met the 2007 Healthcare Effectiveness Data and Information Set (HEDIS) criteria for the breast cancer screening measure (n=35,171). Disability status was determined from Medicaid eligibility records. Mammography screening was modeled using multivariate logistic regression. Separate models for women with and without a disability were also estimated. Results: Although unadjusted breast cancer screening rates were roughly equal for women with and without disability, after adjusting for confounders disability status had a significant negative association with screening mammography (OR=0.74; p Conclusion: Nationwide, rates of routine mammography for Medicaid managed care plans averaged below 50% in 2006. Given that a majority of eligible women served by Medicaid have disabilities, and studies have shown that women with disabilities are more likely to be diagnosed with late stage disease, a focus on improving rates of screening for women with disabilities is overdue

High Energy Neutrino Signals of Four Neutrino Mixing

We evaluate the upward shower and muon event rates for two characteristic four neutrino mixing models for extragalactic neutrinos, as well as for the atmospheric neutrinos, with energy thresholds of 1 TeV, 10 TeV and 100 TeV. We show that by comparing the shower to muon event rates, one can distinguish between oscillation and no-oscillation models. By measuring shower and muon event rates for energy thresholds of 10 TeV and 100 TeV, and by considering their ratio, it is possible to use extragalactic neutrino sources to determine the type of four-flavor mixing pattern. We find that one to ten years of data taking with kilometer-size detector has a very good chance of providing valuable information about the physics beyond the Standard Model.Comment: version accepted for publication in Phys. Rev.