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1.
Mar Pollut Bull ; 199: 115950, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38183833

ABSTRACT

Various environmental indicators were used to evaluate the water and sediment quality of the Netravathi-Gurupur estuary, India, for trace metals and pesticide pollution. The descended order of studied metal concentrations (µg/L) in the water was Fe (592.71) > Mn (98.35) > Zn (54.69) > Cu (6.64) > Cd (3.24) > Pb (2.38) > Cr (0.82) and in sediment (mg/kg) was Fe (11,396.53) > Mn (100.61) > Cr (75.41) > Zn (20.04) > Cu (12.77) > Pb (3.46) > Cd (0.02). However, pesticide residues were not detected in this estuarine environment. The various metal indexes categorised the water as uncontaminated, whereas contamination factor, enrichment factor, geo-accumulation index, degree of contamination and pollution load index indicated low to moderate sediment contamination. Multivariate statistics showed that the dominance of natural sources of trace metals with little anthropogenic impact. Improvement in water/sediment quality during the study period might be due to COVID-19 imposed lockdown.


Subject(s)
Metals, Heavy , Pesticides , Water Pollutants, Chemical , Metals, Heavy/analysis , Estuaries , Geologic Sediments/chemistry , Water , Water Pollutants, Chemical/analysis , Cadmium , Lead , Environmental Monitoring , India , Risk Assessment
2.
Eur J Cell Biol ; 102(3): 151334, 2023 Sep.
Article in English | MEDLINE | ID: mdl-37354622

ABSTRACT

The development of epithelial-to-mesenchymal transition (EMT) like features is emerging as a critical factor involved in the pathogenesis of acute myeloid leukaemia (AML). However, the extracellular signals and the signalling pathways in AML that may regulate EMT remain largely unstudied. We found that the bone marrow (BM) mesenchymal/fibroblastic cell line HS5 induces an EMT-like migratory phenotype in AML cells. AML cells underwent a strong increase of vimentin (VIM) levels that was not mirrored to the same extent by changes of expression of the other EMT core proteins SNAI1 and SNAI2. We validated these particular pattern of co-expression of core-EMT markers in AML cells by performing an in silico analysis using datasets of human tumours. Our data showed that in AML the expression levels of VIM does not completely correlate with the co-expression of core EMT markers observed in epithelial tumours. We also found that vs epithelial tumours, AML cells display a distinct patterns of co-expression of VIM and the actin binding and adhesion regulatory proteins that regulate F-actin dynamics and integrin-mediated adhesions involved in the invasive migration in cells undergoing EMT. We conclude that the BM stroma induces an EMT related pattern of migration in AML cells in a process involving a distinctive regulation of EMT markers and of regulators of cell adhesion and actin dynamics that should be further investigated. Understanding the tumour specific signalling pathways associated with the EMT process may contribute to the development of new tailored therapies for AML as well as in different types of cancers.


Subject(s)
Leukemia, Myeloid, Acute , Neoplasms, Glandular and Epithelial , Humans , Bone Marrow/pathology , Actins/genetics , Epithelial-Mesenchymal Transition/genetics , Leukemia, Myeloid, Acute/genetics , Leukemia, Myeloid, Acute/pathology , Phenotype , Stromal Cells , Cell Line, Tumor
3.
RSC Adv ; 13(28): 19130-19139, 2023 Jun 22.
Article in English | MEDLINE | ID: mdl-37362330

ABSTRACT

This study represents a green synthesis method for fabricating an oxygen evolution reaction (OER) electrode by depositing two-dimensional CuFeOx on nickel foam (NF). Two-dimensional CuFeOx was deposited on NF using in situ hydrothermal synthesis in the presence of Aloe vera extract. This phytochemical-assisted synthesis of CuFeOx resulted in a unique nano-rose-like morphology (petal diameter 30-70 nm), which significantly improved the electrochemical surface area of the electrode. The synthesized electrode was analyzed for its OER electrocatalytic activity and it was observed that using 75% Aloe vera extract in the phytochemical-assisted synthesis of CuFeOx resulted in improved OER electrocatalytic performance by attaining an overpotential of 310 mV for 50 mA cm-2 and 410 mV for 100 mA cm-2. The electrode also sustained robust stability throughout the 50 h of chronopotentiometry studies under alkaline electrolyte conditions, demonstrating its potential as an efficient OER electrode material. This study highlights the promising use of Aloe vera extract as a green and cost-effective way to synthesize efficient OER electrode materials.

4.
Ann R Coll Surg Engl ; 105(3): 218-224, 2023 Mar.
Article in English | MEDLINE | ID: mdl-35638904

ABSTRACT

INTRODUCTION: Idiopathic granulomatous mastitis (IGM) is an evolving problem with varied presentation. No definite treatment guidelines are available at present that may reduce rate of recurrence. Current evidence suggests a ductal pathology behind IGM, which leads to periductal mastitis, leakage and sinus/fistula formation. Thus, excision of the sinus/fistulous tract with en-bloc wide local excision (WLE) of the lesion could be curative. The objective of this study was to look for the basic aetiology of IGM and evaluate the effectiveness of WLE with total or partial duct excision as a curative approach. METHODS: An institutional prospective comparative study was conducted over 4 years (2015-2019), in which 59 cases of IGM were randomly divided into three groups. After necessary investigations, patients in group A received steroid therapy, those in group B received WLE and patients in group C received WLE with total or partial duct excision as the mode of treatment. Postoperative follow-up was between 6 months and 3 years. RESULTS: Histopathological examination (HPE) was found to be the most suitable diagnostic procedure. Patients in group B showed the highest rate of recurrence (73.6%), followed by group A (35.0%) and group C (5.0%). Patients in group C had a significantly lower chance of recurrence compared with both group A and group B (p < 0.05). HPE reports of excised ducts from patients in group C showed ductal disruption and leakage along with periductal granuloma in 70% of cases. CONCLUSIONS: The presence of duct granuloma indicates the association of ductal pathology in IGM. IGM is therefore a disease of the mammary ducts and en-bloc duct excision is curative in non-responding cases.


Subject(s)
Granulomatous Mastitis , Female , Humans , Granulomatous Mastitis/diagnosis , Granulomatous Mastitis/surgery , Granulomatous Mastitis/pathology , Prospective Studies , Granuloma , Immunoglobulin M
5.
Int J Oral Maxillofac Surg ; 51(2): 159-165, 2022 Feb.
Article in English | MEDLINE | ID: mdl-34059403

ABSTRACT

The purpose of this study was to evaluate the oncologic safety of submental island flap (SIF) reconstruction in clinically node-negative oral cancer patients. Forty-four clinically node-negative oral cancer patients with tumour size T1-T3 were divided into two groups. The Submental group consisted of 21 patients, who underwent submental island flap reconstruction whereas the control group consisted of 23 patients who underwent reconstruction with other locoregional or free flaps. The locoregional recurrence rate (LRR) and recurrence-free survival (RFS) in these two groups were assessed and compared. The follow-up period in the two groups ranged from six to 28 months, with a median follow-up period of 15 months and 21 months, respectively. Results showed that the LRR in the control and the submental group was 21.7% and 19%, respectively (p = 0.825). Kaplan-Meier curve showed that the difference in recurrence-free survival in the two groups was not statistically significant (p = 0.749). Multivariate and bivariate analyses did not establish any relationship between the predictive parameters and locoregional recurrence. Thus, the Submental island flap is a reliable and versatile locoregional flap for the reconstruction of post-resection defects in oral cancer. It has no predictive influence on locoregional recurrence in clinically node-negative oral cancer patients.


Subject(s)
Free Tissue Flaps , Mouth Neoplasms , Plastic Surgery Procedures , Humans , Mouth Neoplasms/surgery , Neoplasm Recurrence, Local , Prospective Studies , Treatment Outcome
6.
Hum Exp Toxicol ; 40(3): 483-496, 2021 Mar.
Article in English | MEDLINE | ID: mdl-32909866

ABSTRACT

Endemic goitre and associated iodine deficiency disorders (IDDs) are a major concern in public health even in the period of post salt iodization in many regions. Among others the consumption of cyanogenic plants found responsible for the persistence of such diseases. Bamboo shoots (BS) is one such cyanogenic plant food that caused disruption of certain thyroid hormone synthesizing regulatory element as has already been reported in our earlier study. In this investigation the possible mechanism of thyrocytes disruption along with interruption of thyroid hormone biosynthesis by BS has been worked out. Commonly consumed BS, Bambusa Balcooa Roxb (BBR) water extract was analysed by GC MS; three doses below IC50 were administered to thyrocytes in culture with and without iodine. Expressions of thyroglobulin (Tg), pendrin (PDS) and monocarboxylate transporter 8 (MCT8) were evaluated in thyrocytes with cell cycle analysis, reactive oxygen species (ROS) generation, DNA oxidation and apoptotic regulation through Bax, Bcl-2 and p53. Phytochemical analysis of BBR extract revealed the presence of precursors and metabolic end products of cyanogenic glycosides. Dose dependent decrease in expression of Tg and PDS with concomitant decrease in gene expression of these with MCT8 were observed. Increased ROS, DNA oxidation and associated imbalance were found through increased Bax and p53 with decreased Bcl-2 that perturbed thyrocytes cell cycle. Cyanogenic constituents of BBR generates ROS associated oxidative changes in thyrocytes with DNA damage and oxidation and cell cycle disruption followed by inhibition of thyroid hormone synthesizing regulatory elements; addition of extra iodine showed partial prevention.


Subject(s)
Bambusa , Plant Extracts/toxicity , Thyroid Epithelial Cells/drug effects , Animals , Cells, Cultured , Chloride-Bicarbonate Antiporters/genetics , Chloride-Bicarbonate Antiporters/metabolism , DNA Damage , Female , Monocarboxylic Acid Transporters/genetics , Plant Shoots , Proto-Oncogene Proteins c-bcl-2/metabolism , Rats, Wistar , Reactive Oxygen Species/metabolism , Sulfate Transporters/genetics , Sulfate Transporters/metabolism , Thyroglobulin/genetics , Thyroglobulin/metabolism , Thyroid Epithelial Cells/metabolism , Tumor Suppressor Protein p53/metabolism
7.
Int J Phytoremediation ; 20(9): 909-913, 2018 Jul 29.
Article in English | MEDLINE | ID: mdl-29873532

ABSTRACT

The aquatic plant Hydrocotyle vulgaris was evaluated for its efficacy in removing prometryn from nutrient solution. Under optimized experimental conditions, up to 94.0% of the initial prometryn was removed from the hydroponic culture medium by H. vulgaris in 30 days. The concentration of prometryn decreased from the initial level of 0.55 ± 0.013 mg/L to 0.036 ± 0.001 mg/L at the end of the experimental period. The removal kinetics followed first-order kinetic equation (Ct = 0.4569e-0.09t). Half-life (t1/2) of prometryn was greatly shortened from 27.16 days (without plant) to 5.58 days (with H. vulgaris). Approximately 22% of the initial prometryn residue was found in H. vulgaris tissue, while 11.7% was degraded by the plant in 30 days. The metabolites of prometryn detected were 2,4-diamino-1,3,5-triazine (in the hydroponic culture medium) and 2,4,6-trihydroxy-1,3,5-triazine (in plant tissue) after 30 days. The results indicate that H. vulgaris can be used for phytoextraction of prometryn and could potentially be effective in removing other s-trazine pesticides from contaminated aquatic ecosystems.


Subject(s)
Centella , Prometryne , Biodegradation, Environmental , Ecosystem , Hydroponics , Wetlands
8.
Andrology ; 5(4): 749-762, 2017 07.
Article in English | MEDLINE | ID: mdl-28471544

ABSTRACT

Thyroid hormones (THs) play an important role in maintaining the link between metabolism and reproduction and the altered THs status is associated with induction of oxidative stress in various organs like brain, heart, liver and testis. Further, reactive oxygen species play a pivotal role in regulation of glucose homeostasis in several organs, and glucose utilization by Leydig cells is essential for testosterone biosynthesis and thus is largely dependent on glucose transporter 8 (GLUT8). Glucose uptake by Sertoli cells is mediated through glucose transporter 3 (GLUT3) under the influence of THs to meet energy requirement of developing germ cells. THs also modulate level of gap junctional protein such as connexin 43 (Cx43), a potential regulator of cell proliferation and apoptosis in the seminiferous epithelium. Although the role of transient neonatal hypothyroidism in adult testis in terms of testosterone production is well documented, the effect of THs deficiency in early developmental period and its role in testicular glucose homeostasis and oxidative stress with reference to Cx43 in immature mice remain unknown. Therefore, the present study was conducted to evaluate the effect of neonatal hypothyroidism on testicular glucose homeostasis and oxidative stress at postnatal days (PND) 21 and 28 in relation to GLUT3, GLUT8 and Cx43. Hypothyroidism induced by 6-propyl-2-thiouracil (PTU) markedly decreased testicular glucose level with considerable reduction in expression level of GLUT3 and GLUT8. Likewise, lactate dehydrogenase (LDH) activity and intratesticular concentration of lactate were also decreased in hypothyroid mice. There was also a rise in germ cell apoptosis with increased expression of caspase-3 in PTU-treated mice. Further, neonatal hypothyroidism affected germ cell proliferation with decreased expression of proliferating cell nuclear antigen (PCNA) and Cx43. In conclusion, our results suggest that neonatal hypothyroidism alters testicular glucose homeostasis via increased oxidative stress in prepubertal mice, thereby affecting germ cell survival and proliferation.


Subject(s)
Connexin 43/metabolism , Glucose Transport Proteins, Facilitative/metabolism , Glucose Transporter Type 3/metabolism , Glucose/metabolism , Hypothyroidism/metabolism , Oxidative Stress , Testis/metabolism , Age Factors , Animals , Animals, Newborn , Antioxidants/metabolism , Apoptosis , Cell Proliferation , Connexin 43/genetics , Disease Models, Animal , Down-Regulation , Homeostasis , Hypothyroidism/chemically induced , Hypothyroidism/genetics , Hypothyroidism/pathology , L-Lactate Dehydrogenase/metabolism , Lactic Acid/metabolism , Lipid Peroxidation , Male , Mice , Proliferating Cell Nuclear Antigen/metabolism , Propylthiouracil , Testis/pathology , Time Factors
9.
Sci Rep ; 7(1): 1479, 2017 05 03.
Article in English | MEDLINE | ID: mdl-28469135

ABSTRACT

Relativistic laser interaction with micro- and nano-scale surface structures enhances energy transfer to solid targets and yields matter in extreme conditions. We report on the comparative study of laser-target interaction mechanisms with wire-structures of different size, revealing a transition from a coherent particle heating to a stochastic plasma heating regime which occurs when migrating from micro-scale to nano-scale wires. Experiments and kinetic simulations show that large gaps between the wires favour the generation of high-energy electrons via laser acceleration into the channels while gaps smaller than the amplitude of electron quivering in the laser field lead to less energetic electrons and multi-keV plasma generation, in agreement with previously published experiments. Plasma filling of nano-sized gaps due to picosecond pedestal typical of ultrashort pulses strongly affects the interaction with this class of targets reducing the laser penetration depth to approximately one hundred nanometers. The two heating regimes appear potentially suitable for laser-driven ion/electron acceleration schemes and warm dense matter investigation respectively.

10.
Adv Cancer Res ; 132: 1-44, 2016.
Article in English | MEDLINE | ID: mdl-27613128

ABSTRACT

Metastasis is the complex process by which primary tumor cells migrate and establish secondary tumors in an adjacent or distant location in the body. Early detection of metastatic disease and effective therapeutic options for targeting these detected metastases remain impediments to effectively treating patients with advanced cancers. If metastatic lesions are identified early, patients might maximally benefit from effective early therapeutic interventions. Further, monitoring patients whose primary tumors are effectively treated for potential metastatic disease onset is also highly valuable. Finally, patients with metastatic disease can be monitored for efficacy of specific therapeutic interventions through effective metastatic detection techniques. Thus, being able to detect and visualize metastatic lesions is key and provides potential to greatly improve overall patient outcomes. In order to achieve these objectives, researchers have endeavored to mechanistically define the steps involved in the metastatic process as well as ways to effectively detect metastatic progression. We presently overview various preclinical and clinical in vitro and in vivo assays developed to more efficiently detect tumor metastases, which provides the foundation for developing more effective therapies for this invariably fatal component of the cancerous process.


Subject(s)
Antineoplastic Agents/therapeutic use , Neoplasms/drug therapy , Neoplasms/pathology , Animals , Disease Progression , Humans , Neoplasm Metastasis
11.
Adv Cancer Res ; 131: 97-132, 2016.
Article in English | MEDLINE | ID: mdl-27451125

ABSTRACT

Since its original discovery in 2002, AEG-1/MTDH/LYRIC has emerged as a primary regulator of several diseases including cancer, inflammatory diseases, and neurodegenerative diseases. AEG-1/MTDH/LYRIC has emerged as a key contributory molecule in almost every aspect of cancer progression, including uncontrolled cell growth, evasion of apoptosis, increased cell migration and invasion, angiogenesis, chemoresistance, and metastasis. Additionally, recent studies highlight a seminal role of AEG-1/MTDH/LYRIC in neurodegenerative diseases and obesity. By interacting with multiple protein partners, AEG-1/MTDH/LYRIC plays multifaceted roles in the pathogenesis of a wide variety of diseases. This review discusses the current state of understanding of AEG-1/MTDH/LYRIC regulation and function in cancer and other diseases with a focus on its association/interaction with several pivotal protein partners.


Subject(s)
Cell Adhesion Molecules/metabolism , Central Nervous System Diseases/physiopathology , Gene Expression Regulation, Neoplastic , Neoplasms/physiopathology , Obesity/physiopathology , Humans , Membrane Proteins , RNA-Binding Proteins
12.
Adv Cancer Res ; 131: 159-91, 2016.
Article in English | MEDLINE | ID: mdl-27451127

ABSTRACT

Cancer is a multifactor and multistep process that is affected intrinsically by the genetic and epigenetic makeup of tumor cells and extrinsically by the host microenvironment and immune system. A key component of cancer involves a unique subpopulation of highly malignant cancerous cells referred to as cancer stem cells (CSCs). CSCs are positioned at the apex of the tumor hierarchy with an ability to both self-renew and also generate non-CSC/differentiated progeny, which contribute to the majority of the tumor mass. CSCs undergo functional changes and show plasticity that is stimulated by specific microenvironmental cues and interactions in the tumor niche, which contribute to the complexity and heterogeneity of the CSC population. The prognostic value of CSCs in the clinic is evident since there are many examples in which CSCs serve as markers for poor patient prognosis. CSCs are innately resistant to many standard therapies and they display anoikis resistance, immune evasion, tumor dormancy, and field cancerization, which may result in metastasis and relapse. Many academic laboratories and biotechnology companies are currently focusing on strategies that target CSCs. Combination therapies, epigenetic modifiers, stemness inhibitors, CSC surface marker-based therapies, and immunotherapy-based CSC-targeting drugs are currently undergoing clinical trials. Potential new targets/strategies in CSC-targeted therapy include MDA-9/Syntenin (SDCBP), Patched (PTCH), epigenetic targets, noncoding RNAs, and differentiation induction. Defining ways of targeting and destroying CSCs holds potential to impact significantly on cancer therapy, including prevention of metastasis and cancer recurrence.


Subject(s)
Antineoplastic Agents/therapeutic use , Drug Delivery Systems , Immunotherapy , Molecular Targeted Therapy , Neoplasms/drug therapy , Neoplastic Stem Cells/drug effects , Animals , Humans , Neoplasms/metabolism , Neoplasms/pathology , Neoplastic Stem Cells/metabolism , Neoplastic Stem Cells/pathology
13.
Bioorg Med Chem Lett ; 26(9): 2224-8, 2016 May 01.
Article in English | MEDLINE | ID: mdl-27017114

ABSTRACT

The persistence of Mycobacterium tuberculosis (MTB) in dormant stage assists the pathogen to develop resistance against current antimycobactrial drugs. To address this issue, we report herein the synthesis of N-(4-oxo-2 substituted thiazolidin-3 yl) pyrazine-2-carbohydrazide derivatives designed by following the molecular hybridization approach using pyrazine and thiazolidenone scaffolds. The compounds were evaluated against MTB H37Ra and Mycobacterium bovis BCG in dormancy model. Most of the compounds had IC50 values in 0.3-1 µg/ml range. The active compounds were further tested for anti-proliferative activity against THP-1, Panc-1, A549, and MCF-7 cell lines using MTT assay and exhibited no significant cytotoxicity. We also report molecular docking studies using active analogs and MTB - Decaprenylphosphoryl-ß-d-ribose-2'-epimerase (DprE1) to rationalize the biological activity and to provide an insight into the probable mechanism of action and binding mode of hybridized structures. The results obtained validate the use of molecular hybridization approach and also suggest that reported compounds can provide a novel pharmacophore to synthesize lead compounds against dormat MTB.


Subject(s)
Antitubercular Agents/chemical synthesis , Pyrazines/chemistry , Thiazolidines/chemistry , Antitubercular Agents/chemistry , Molecular Docking Simulation
14.
Oncogene ; 35(37): 4937-48, 2016 09 15.
Article in English | MEDLINE | ID: mdl-26923331

ABSTRACT

Although the role of metastatic cancer stem cells (mCSCs) in tumor progression has been well documented, our study reveals a hitherto unidentified role of tumorigenic intrinsic CSCs (iCSCs) in breast cancer metastasis. We show that unlike highly migratory mCSCs residing in the breast tumor disseminating/peripheral regions, iCSCs populate the inner mass of the tumor and are non-migratory. However iCSCs, via paracrine signaling, induce conversion of non-stem cancer cells to CSCs that (i) are identical to the previously reported mCSCs, and (ii) in contrast to iCSCs, express chemokine receptor, chemokine (C-X-C motif) receptor 4 (CXCR4), which is crucial for their metastatic potential. These mCSCs also demonstrate high in vivo tumorigenicity. Physical non-participation of iCSCs in metastasis is further validated in vivo, where only mCSCs are found to exist in the metastatic sites, lymph nodes and bone marrow, whereas the primary tumor retains both iCSCs and mCSCs. However, iCSCs ensure metastasis since their presence is crucial for deliverance of highly metastatic CXCR4(+) mCSCs to the migrating fraction of cells. Cumulatively, these results unveil a novel role of iCSCs in breast cancer metastasis as parental regulators of CXCR4(+) mCSCs, and highlight the therapeutic requisite of targeting iCSCs, but not CXCR4(+) mCSCs, to restrain breast cancer metastasis from the root by inhibiting the generation of mCSCs from iCSCs. Considering the pivotal role of iCSCs in tumor metastasis, the possibility of metastasis to be a 'stem cell phenomena' is suggested.


Subject(s)
Breast Neoplasms/genetics , Cell Movement/genetics , Neoplastic Stem Cells/pathology , Receptors, CXCR4/genetics , Breast Neoplasms/pathology , Carcinogenesis/genetics , Female , Gene Expression Regulation, Neoplastic , Humans , Lymph Nodes/pathology , MCF-7 Cells , Neoplasm Metastasis , Receptors, CXCR4/biosynthesis , Signal Transduction
15.
Bull Environ Contam Toxicol ; 96(4): 550-5, 2016 Apr.
Article in English | MEDLINE | ID: mdl-26810796

ABSTRACT

2,4-bis(Isopropylamino)-6-methylthio-s-triazine (prometryn) poses a risk to aquatic environments in several countries, including China, where its use is widespread, particularly due to its chemical stability and biological toxicity. Vetiver grass (Chrysopogon zizanioides L.) was tested for its potential for phytoremediation of prometryn. Vetiver grass was grown in hydroponic media in a greenhouse, in the presence of prometryn, with appropriate controls. Plant uptake and removal of prometryn from the media were monitored for a period of 67 days. The results showed that the removal of the prometryn in the media was expedited by vetiver grass. The removal half-life (t1/2) was shortened by 11.5 days. Prometryn removal followed first-order kinetics (Ct = 1.8070e(-0.0601t)). This study demonstrated the potential of vetiver grass for the phytoremediation for prometryn.


Subject(s)
Chrysopogon/growth & development , Hydroponics/methods , Prometryne/analysis , Soil Pollutants/analysis , Biodegradation, Environmental , China , Chrysopogon/metabolism
16.
J Hum Hypertens ; 30(3): 210-5, 2016 Mar.
Article in English | MEDLINE | ID: mdl-26016593

ABSTRACT

Older Hispanics are less likely to be aware of their hypertension or adopt lifestyle modifications for hypertension control than non-Hispanic whites. Few reports exist Dietary Approaches to Stop Hypertension (DASH) accordance among Hispanics. This study was designed to: (1) assess accordance to a DASH pattern using three widely used DASH scoring paradigms; and (2) determine which DASH paradigm was most strongly associated with hypertension in 169 older Hispanics (mean age, 66 years and 73% female). Food frequency questionnaires were used to calculate DASH scores. Logistic regression modeling was performed for prevalent hypertension with the DASH scores, age, gender and acculturation. Using the Folsom et al. DASH scoring paradigm, 55% of adults were deemed DASH accordant compared with 17% using Fung et al. scores and 13% using the Toledo et al. Folsom et al. scores were predictive of prevalent hypertension (odds ratio=1.35, 95% confidence interval (1.04, 1.77) in this older Hispanic sample; the remaining two scoring systems were not associated with hypertension in this sample.


Subject(s)
Hypertension/diet therapy , Aged , Algorithms , Female , Hispanic or Latino/statistics & numerical data , Humans , Hypertension/ethnology , Male
17.
Indian J Exp Biol ; 54(8): 544-8, 2016 08.
Article in English | MEDLINE | ID: mdl-28575927

ABSTRACT

Human urine is a potential source of various nutrients, minerals and trace elements. Its use as a fertilizer is growing popular among farmers. Here, we examined the pattern of changes in the counts of coliform, heterotrophic bacteria as well as physico-chemical characteristics of human urine during different days of storage under closed conditions at ambient temperature. We observed that after 253 days of storage under closed condition, the coliform counts were reduced significantly and remained within the safe limit to be used as fertilizer. With increase in storage period, the concentration of phosphate showed decline coupled with rise in pH, alkalinity and electrical conductance. Our study revealed that human urine can be used as safe fertilizer after 8 months of storage under closed conditions at ambient temperature ranging 25-35ºC.


Subject(s)
Enterobacteriaceae/physiology , Fertilizers/microbiology , Urine/microbiology , Electric Conductivity , Enterobacteriaceae/metabolism , Fertilizers/analysis , Heterotrophic Processes , Humans , Hydrogen-Ion Concentration , Phosphates/urine , Temperature , Time Factors , Urine/chemistry
18.
Indian J Biochem Biophys ; 52(2): 203-8, 2015 Apr.
Article in English | MEDLINE | ID: mdl-26118133

ABSTRACT

Polypyrrole (PPy)-bile salt composite was used for sensing ethanol vapor. PPy was synthesized by interface polymerization for subsequent fabrication of thin film of its composite with bile salt, by in-situ co-dispersion method and then exposed to ethanol vapour. Sensing was visualized through changes in morphological, structural and optical characterizations. The ethanol exposed film showed larger agglomeration as revealed in its surface morphology on scanning electron microscope (SEM) and greater crystallinity as seen through X-Ray diffraction (XRD). Fourier transform infra red (FTIR) and nuclear magnetic resonance spectroscopy (NMR) of the ethanol incorporated film also gave signature of the presence of bile salt and alcohol. Alcohol incorporation pattern resulted in increase in electrical conductance from 7.08539 x 10(-5) mA/V to 8.0356 x 10(-5) mA/V, as determined from current voltage characterizations. Average molecular weight (M(n)) obtained from gel permeation chromatography changed from 6160 to 10300 on ethanol intake. Photoluminescence (PL) intensity was quenched and the PL peak shifted from 430 to 409 on ethanol exposure. Changes in morphological, structural, optical and electrical properties of the composite on ethanol exposure showed its prospective application for sensing ethanol.


Subject(s)
Bile Acids and Salts/chemistry , Ethanol/analysis , Polymers/chemistry , Pyrroles/chemistry , Microscopy, Electron, Scanning , Spectroscopy, Fourier Transform Infrared , X-Ray Diffraction
19.
Curr Mol Med ; 15(4): 386-400, 2015.
Article in English | MEDLINE | ID: mdl-25941820

ABSTRACT

Antibody targeted cytoplasmic delivery of drugs is difficult to achieve as antigen-antibody interaction results in the payload being directed to the endosomal compartment. However, Sendai viral envelopes can bring about cytoplasmic delivery due to F-protein mediated membrane fusion. In this study we have generated and fused a recombinant scFv directed to the onco-fetal antigen, the Placental isozyme of Alkaline Phosphatase (PAP) with the trans-membrane and part of the cytoplasmic domain of the Sendai F protein (F(TMC)). Reconstituted virosomes, having both the fusion protein as well as the native F-protein were able to specifically bind and deliver drugs to PAP expressing cells. About 75% of the delivery was cytoplasmic in nature. Hence, this immuno-virosome, which is devoid of the comparatively more toxic HN protein, has the novel ability to combine specific antibody mediated targeting with cytoplasmic delivery. The scFv ensured specific binding to PAP expressing cells, without cross reacting with the other isozymes of alkaline phosphatase. The advantages of cytoplasmic delivery would include reduced degradation and lowered immunogenicity of the payload and carrier. The ubiquitous expression of PAP on a variety of cancers like seminoma, choriocarcinoma, cervical and breast cancers also suggests its potential usefulness in a number of malignancies.


Subject(s)
Alkaline Phosphatase/immunology , Drug Delivery Systems/methods , Isoenzymes/immunology , Sendai virus/metabolism , Viral Fusion Proteins/immunology , Alkaline Phosphatase/genetics , Alkaline Phosphatase/metabolism , Animals , Antibiotics, Antineoplastic/pharmacology , Antibodies, Monoclonal/immunology , CHO Cells , Cell Line, Tumor , Cricetinae , Cricetulus , Cytoplasm/virology , Doxorubicin/pharmacology , Fluorescein-5-isothiocyanate/metabolism , GPI-Linked Proteins/genetics , GPI-Linked Proteins/immunology , GPI-Linked Proteins/metabolism , HeLa Cells , Humans , Isoenzymes/genetics , Isoenzymes/metabolism , Membrane Fusion/physiology , Peptide Library , Sendai virus/genetics , Staining and Labeling , Viral Envelope Proteins/genetics , Viral Envelope Proteins/metabolism , Viral Fusion Proteins/genetics , Viral Fusion Proteins/metabolism
20.
Mymensingh Med J ; 24(2): 244-50, 2015 Apr.
Article in English | MEDLINE | ID: mdl-26007249

ABSTRACT

The clinical evidence of neurological menifestations associated with asphyxia is described as hypoxic ischaemic encephalopathy (HIE). A variety of metabolic problems are present in asphyxiated newborns including hypoglycemia, hypocalcemia, hypomagnesemia and others metabolic abnormalities. Some of these biochemical disturbances may trigger seizure or potentiate further brain damage. This cross sectional case-control study was done in Mymensingh Medical College Hospital, to identify the association of hypoglycemia, hypocalcemia, hypomagnesemia in neonates with perinatal asphyxia. Study period was six months. Sample size was 60. Among total sample 30 term asphyxiated newborns of <24 hours age were case and equal number term healthy newborns <24 hours age were control. The main clinical presentations were delayed cry after birth along with respiratory distress, convulsion and absence of cry in asphyxiated newborns. Major physical findings were cyanosis, convulsion and tachypnoea in asphyxiated group. The mean value of serum calcium level was significantly lower in asphyxiated newborns (7.37 ± 0.10mg/dl) than control value (8.04±0.09mg/dl). Hypocalcemia was found among 23.33% babies in case group. On the contrary, hypocalcemia was found in single baby among control group. The mean value of serum magnesium was significantly lower in asphyxiated newborns (1.83 ± 0.04mg/dl) than control value (1.96 ± 0.05mg/dl). Hypomagnesemia was found among 3(10%) newborns but none was found among control group. Hypoglycemia was found in 7(23.33%) cases though the mean value of blood glucose was higher in case group (5.72 ± 0.62mmol/l) than control group (4.87 ± 0.15mmol/l) difference was not statistically significant. Combined hypoglycemia, hypocalcemia and hypomagnesemia were found in 1(3.33%) case; combined hypoglycemia and hypocalcemia were found in 2(6.67%) cases; and combined hypocalcemia and hypomagnesemia were found in 1(3.33%) case. During the study period, 3(10.0%) cases were expired but no death occurred among control group. This study shows isolated or combined hypoglycemia, hypocalcemia, hypomagnesemia are frequently found in newborns with perinatal asphyxia. So, it is necessary to monitor blood glucose, serum calcium and also serum magnesium among asphyxiated newborns for proper management.


Subject(s)
Asphyxia , Asphyxia Neonatorum , Case-Control Studies , Cross-Sectional Studies , Humans , Hypocalcemia , Hypoglycemia , Infant, Newborn
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