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Rapid Colorimetric and Fluorometric Discrimination of Maleic Acid vs. Fumaric Acid and Detection of Maleic Acid in Food Additives. J Fluoresc 2024; 34:1015-1024. [PMID: 37439921 DOI: 10.1007/s10895-023-03330-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 06/27/2023] [Indexed: 07/14/2023]
Abstract
An anthracene thiazole based Schiff base L was synthesized and employed for fluorescence switch-on detection of maleic acid in aqueous DMSO. The non-fluorescent L (10-5 M) showed an instantaneous and selective fluorescence enhancement at 506 nm upon interaction with maleic acid (10-5 M). Other potential carboxylic acids (10-5 M), such as malic acid, citric acid, acetic acid, cinnamic acid, tartaric acid, succinic acid, fumaric acid, oxalic acid and malonic acid failed to alter the chromo-fluorogenic properties of L. Probe L can be employed to detect maleic acid down to 2.74 × 10-6 M. The probe L showed good linearity from 2.97 to 6.87 µM. Analytical utility of L was examined by detecting maleic acid in various food additives and drosophila larvae.
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Prevalence and predictors of risk factors for cardiovascular diseases among women aged 15-49 years across urban and rural India: findings from a nationwide survey. BMC Womens Health 2024; 24:77. [PMID: 38281909 PMCID: PMC10822148 DOI: 10.1186/s12905-023-02869-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 12/25/2023] [Indexed: 01/30/2024] Open
Abstract
BACKGROUND Women's health is usually looked upon in terms of their reproductive health. However, cardio-vascular diseases are one of the leading causes of death and disability among women, globally as well as in India. Risk factors of today can be disease of tomorrow. Gradience in level of epidemiological transition is observed across different states. The study aims to estimate the national and regional prevalence, and sociodemographic determinants of biological and behavioural risk factors for cardiovascular diseases. MATERIALS AND METHODS The present study was conducted among women in the age group of 15 to 49 years using nationally representative sample from fifth round National Family Health Survey in India. The data analysis in the current study included 7,24,115 women in the age group of 15 to 49 years. SPSS version 20 was used for the purpose of analysis. Weighted prevalence was computed for the studied behavioral and biological (dependent variable) risk factors using women specific weights as provided in the dataset. Binary logistic regression model was employed to calculate the adjusted odds ratio (OR) with the corresponding 95% confidence interval (CI) to study the sociodemographic determinants (independent variables) of these risk factors. RESULTS Highest prevalent risk factor for cardiovascular diseases was reported to be central obesity (78.2%), followed by overweight/obesity (23.9%), oral contraceptive use (13.4%), raised blood pressure (11.8%), raised blood sugar (8.6%), tobacco use (4.0%), and alcohol use (0.7%). Higher odds of all the studied risk factors were reported with increasing age. All of the studied risk factors, except for alcohol consumption [OR (95%CI): 0.9 (0.8-0.96)], had higher odds in rural areas compared to urban areas. Compared to other castes, the odds of tobacco [OR (95% CI): 2.01 (1.91-2.08)] and alcohol consumption [OR (95% CI): 5.76 (5.12-6.28)], and raised blood pressure [OR (95% CI): 1.07(1.04-1.11)] was significantly higher among the people belonging to schedule tribe. CONCLUSION AND RECOMMENDATION The present study highlights the state-wise disparities in the burden and predictors of risk factors for cardio-vascular diseases among women of reproductive age. The study provides insights to these disparities, and focuses on the need of tailoring the disease prevention and control measures suiting to the local needs.
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Analysis of Structural, Photoluminescence, and Colorimetric Performance of Gd-Incorporated BNT Ceramic. J Fluoresc 2023:10.1007/s10895-023-03544-1. [PMID: 38141145 DOI: 10.1007/s10895-023-03544-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023]
Abstract
Structural, optical, photoluminescence and colorimetric analyses of Gd (1-5 mol %) doped BNT ceramics synthesized by the solid-state reaction technique are reported. Structural analyses of all the samples are done by the X-ray diffraction method. It is shown that the samples have rhombohedral crystal structures with an R3C space group. The energy band gap of all the phosphors is computed from the UV-visible absorbance spectra. Photoluminescence behaviors are analyzed from the excitation along with the emission spectra of the prepared materials. The critical quenching concentration with the critical energy transfer distance is observed owing to the dipole-dipole interactions between the materials. Colorimetric analyses are carried out with the help of CIE chromaticity. Moreover, the color purity, correlated color temperature, color rendering index, and luminous efficiency of radiation values are evaluated by using the chromaticity coordinates.
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Protein interactions, molecular docking, antimicrobial and antifungal studies of terpyridine ligands. J Biomol Struct Dyn 2023; 41:11274-11285. [PMID: 36562209 DOI: 10.1080/07391102.2022.2161012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
Resistance to antibiotics/antibacterials/antifungals in pathogenic microbes has been developing over the past few decades and has recently become a commonplace public-health peril. Thus, alternative nontoxic potent antibiotic agents are covertly needed to control antibiotic-resistant outbreaks. In an effort to combat the challenges posed by the co-occurrence of multidrug resistance, two terpyridine ligands 4'-(4-N,N'-dimethylaminophenyl)-2,2':6',2″-terpyridine (L1) and 4'-(4-tolyl)-2,2':6',2″-terpyridine (L2) have been designed, prepared and confirmed their structure by spectral studies. Thereafter, antimicrobial assay was performed against gram positive and negative bacterial strains along with fungal strains. Both compounds L1 and L2 exhibited remarkable inhibitory activities against bacteria, Escherichia coli and Staphylococcus aureus at MIC values 6.25 and 3.125 µg/ml, respectively. In addition, in silico molecular docking studies were ascertained with bacterial DNA gyrase and fungal demethylase. Furthermore, both L1 and L2 could bind Bovine Serum Albumin (BSA) protein and binding interaction has been studied with the help of UV-Visible and fluorescence spectroscopy. While fluorescence of BSA unperturbed in the presence of L2, an addition of L1 to the solution of BSA resulted significant quenching. The binding constant calculations at different temperature confirmed that the fluorescence quenching between BSA and L1 is predominantly static in nature. The toxicity of L1 and L2 was checked using Drosophila melanogaster. The toxicity analysis suggest both the dyes are non-cytotoxic in nature.Communicated by Ramaswamy H. Sarma.
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Trend of risk factors for cardiovascular diseases among young and middle-aged indians: Insights from a nationally representative survey. INTERNATIONAL JOURNAL OF CARDIOLOGY. CARDIOVASCULAR RISK AND PREVENTION 2023; 19:200200. [PMID: 37663033 PMCID: PMC10472237 DOI: 10.1016/j.ijcrp.2023.200200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/08/2023] [Accepted: 07/20/2023] [Indexed: 09/05/2023]
Abstract
Background India, as a nation is witnessing epidemiological transition, which is taking place across all the states at different level, over past couple of decades. Owing to the long natural history of non-communicable diseases (NCDs), early identification of these risk factors can aid in understanding the distribution and future development of cardiovascular diseases (CVDs). Also, studying the trend of these risk factors over time can help in prediction of burden of various CVDs in future. Thus, the present study aims at understanding the trend of various risk factors for CVDs across rural and urban India, and states. Methods The present study was conducted using secondary data from the third, fourth and fifth round of the National Family Health Survey (NFHS) conducted in India. The surveys collected data for estimation of burden of the common modifiable risk factors of CVDs including tobacco and alcohol consumption overweight/obesity, raised blood pressure, and raised blood sugar. The analysis for the present study was done among interviewed males and females between 15 and 49 years. The weighted prevalence of these risk factors was computed and binary logistic regression was done to study the predictors for the same. Results A declining trend of tobacco (29.2% in NFHS 3; 8.1%in NFHS 5) and alcohol consumption (14.2% in NFHS 3; 3.2%in NFHS 5) was observed from 2005 -06 to 2019-21. A rising trend of overall raised blood pressure (11.4% in NFHS 4; 12.2%in NFHS 5), raised blood sugar (6.2% in NFHS 4; 8.5%in NFHS 5), and overweight and obesity (11.4% in NFHS 3; 23.6%in NFHS 5) was observed from the three rounds of the survey. The odds of all the studied risk factors were significantly higher among older age across all the rounds of the survey. Except overweight/obesity, the odds of rest all studied risk factors was found to be higher among males compared to females. Also, higher odds of alcohol consumption, overweight/obesity, raised blood pressure, and raised blood sugar were found among the participants living in urban areas compared to rural areas, across all the rounds of the survey. Conclusion The present highlights the rising burden of CVD risk factors, including overweight and obesity, raised blood pressure and raised blood sugar, and a declining trend of tobacco and alcohol consumption across the country. The study also highlights the need for in-depth assessment of predictors of these risk factors using longitudinal study designs.
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Pyrene-based fluorescent chemosensor for rapid detection of water and its applications. Methods 2023; 219:127-138. [PMID: 37832896 DOI: 10.1016/j.ymeth.2023.10.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/25/2023] [Accepted: 10/10/2023] [Indexed: 10/15/2023] Open
Abstract
This manuscript introduces a pyrene-based Schiff base L by reacting pyrenecarboxaldehyde with 2-aminothiazole in equimolar ratio. The ligand L was characterized by various spectral data and single crystal. The water sensing ability of L was examined in different organic solvents. The weakly emissive L in DMSO showed a fluorescence enhancement upon the addition of water. The water-induced fluorescence enhancement of L was occurred due to the combined effect of aggregation-induced emission (AIE) phenomenon and suppression of photo-induced electron transfer (PET) process. Using L, the water in DMSO can be detected down to 0.50 wt% with a quantification limit of 1.52 wt%. The analytical novelty of the developed sensor L was validated by detecting moisture in a variety of raw food products.
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Identification of allele-specific KIV-2 repeats and impact on Lp(a) measurements for cardiovascular disease risk. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.24.538128. [PMID: 37163057 PMCID: PMC10168217 DOI: 10.1101/2023.04.24.538128] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The abundance of Lp(a) protein holds significant implications for the risk of cardiovascular disease (CVD), which is directly impacted by the copy number (CN) of KIV-2, a 5.5 kbp sub-region. KIV-2 is highly polymorphic in the population and accurate analysis is challenging. In this study, we present the DRAGEN KIV-2 CN caller, which utilizes short reads. Data across 166 WGS show that the caller has high accuracy, compared to optical mapping and can further phase ~50% of the samples. We compared KIV-2 CN numbers to 24 previously postulated KIV-2 relevant SNVs, revealing that many are ineffective predictors of KIV-2 copy number. Population studies, including USA-based cohorts, showed distinct KIV-2 CN, distributions for European-, African-, and Hispanic-American populations and further underscored the limitations of SNV predictors. We demonstrate that the CN estimates correlate significantly with the available Lp(a) protein levels and that phasing is highly important.
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Detection of moisture in DMSO and raw food products by using an anthracene-based fluorescence OFF-ON chemosensor. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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Gender-specific factors associated with hypertension among women of childbearing age: Findings from a nationwide survey in India. Front Cardiovasc Med 2022; 9:999567. [PMID: 36588549 PMCID: PMC9795811 DOI: 10.3389/fcvm.2022.999567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 11/16/2022] [Indexed: 12/15/2022] Open
Abstract
Background The association of conventional (modifiable and non-modifiable) risk factors for hypertension has already been established in the literature. However, there are other putative risk factors specific to women (early menarche, age at first childbirth, women empowerment, number of children born, hysterectomy, etc.) in the development of hypertension. This study is the first study to highlight the potential association of gender-specific factors along with other conventional risk factors and hypertension, using a nationwide sample. Methods The study is a secondary analysis of the data collected from the National Family Health Survey-4 (NFHS-4), a nationally representative sample of 699,686 women of reproductive age in India. The interview schedule included data on general background characteristics, marriage, reproductive history, hysterectomy, knowledge, and utilization of family planning services, maternal and child care, women empowerment, non-communicable diseases, and domestic violence. The blood pressure was measured by direct observation by the study investigators using a digital blood pressure monitor. To account for disproportionate sampling and non-response, a weighted statistical analysis was performed. Logistic regression analysis was done to study the strength of the association between the risk factors and hypertension (computation of unadjusted and adjusted odds ratio). Results The prevalence of hypertension was 11.8% among women. Among the conventional factors, older age, higher body mass index (BMI), tobacco use, and alcohol use had higher odds for hypertension, while higher education, higher socio-economic position, and living in urban areas had lower odds. Among the gender-specific factors, younger age at first childbirth, early menarche, oral contraceptive pill use [adjusted OR: 1.23; (1.18-1.28)], and hysterectomy [adjusted OR: 1.10; (1.05-1.69)] were found to be risk factors for hypertension. Domestic violence was significantly associated with hypertension [unadjusted OR: 1.11; (1.02-1.20)]. Empowered women had lower odds of hypertension [adjusted OR: 0.93; (0.95-1.03)]. Conclusion Significant association of these gender-specific factors among women necessitates the need for taking into account these factors while screening for hypertension among women and thus, designing a tailored model better suited to them for risk assessment.
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Prevalence and predictors of risk factors for noncommunicable diseases among women in an Urbanized Village of India. Indian J Community Med 2022; 47:266-271. [PMID: 36034254 PMCID: PMC9400354 DOI: 10.4103/ijcm.ijcm_603_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 10/13/2021] [Indexed: 11/16/2022] Open
Abstract
Background: The burden of noncommunicable diseases (NCDs) and their risk factors among the underprivileged women of the urban areas are expected to increase. The objective of the study was to estimate the prevalence and sociodemographic predictors of these risk factors. Materials and Methods: A cross-sectional study was conducted among 370 women between 25 and 64 years in an urbanized village of India. Risk factors for NCDs were assessed using the WHO STEPS instrument. To determine the sociodemographic predictors of these risk factors binary logistic regression was used. Results: The prevalence of tobacco consumption, physical inactivity, and insufficient fruit and vegetable intake, overweight, and obesity was found to be 18.3%, 61.6%, 96.5%, 27.6%, and 5.9%, respectively. Raised blood pressure, blood glucose, and cholesterol were found to be present in 23%, 22%, and 42%, respectively. Older age was found to be a significant predictor of tobacco consumption, physical inactivity, raised blood pressure, and raised blood glucose. Conclusion: The current study reported a high prevalence of physical inactivity and insufficient fruit and vegetable intake, with age being a significant predictor of the majority of risk factors. Thus, arises the need for programs and policies tailored toward addressing the local needs, targeted toward older women.
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The Influence of Electromagnetic Field Pollution on Human Health: A Systematic Review. SIRIRAJ MEDICAL JOURNAL 2021. [DOI: 10.33192/smj.2021.63] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Optical, electrical and magnetic properties of (((Bi0.5Na0.5)0.7La0.3) (Ti0.7Fe0.3) O3) ferroelectric ceramic. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Insights from COVID-19 cluster containment in Bhilwara District, Rajasthan. Indian J Public Health 2020; 64:S177-S182. [PMID: 32496251 DOI: 10.4103/ijph.ijph_489_20] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background In March 2020, a healthcare professional from a renowned private hospital, in the textile city of Bhilwara, Rajasthan, reported clustering of cases of pneumonia amongst doctors and paramedical staff suspected to be due to COVID-19. The basis of suspicion was clinico-eco-epidemiologic-radiological findings as, by that time, about 20 COVID19 cases were reported from the state of Rajasthan including a big Italian group of tourists who travelled extensively in Rajasthan, including Udaipur city. Objectives The current study presents the field experience of the Central and the State Rapid Response Teams (RRTs) in the cluster containment at Bhilwara. Methods: The information regarding the sociodemographic profile of the cases was provided by the Senior Medical Officer In-charge. The containment strategy was modeled under 6 pillars. Google Maps was used for preparing spot map. Results Immediate public health actions of cluster containment including contact tracing, quarantine, and isolation were initiated using epidemiological approach of mapping the cluster and taking care of reservoir of infection by the District Public Health Team supported by Multidisciplinary Rapid Response Team. This was supplemented by strict enforcement of lock down in the District taking care of daily need of the community by the leadership of administration with very strong intersectoral co-ordination (locally called "ruthless containment"). Conclusion The forthcoming challenge resides in re-establishment of inter-district and inter-state travel, which can become a risk of re-entry of the new cases, which needs to be taken care of, with the help of stringent administrative measures and screening at all points of entry. The team in Bhilwara needs to remain vigilant to pick up any imported cases early before local transmission establishes.
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Haemato-biochemical alterations and oxidative stress associated with naturally occurring porcine circovirus2 infection in pigs. Trop Anim Health Prod 2020; 52:2243-2250. [PMID: 32125595 DOI: 10.1007/s11250-020-02247-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 02/24/2020] [Indexed: 10/24/2022]
Abstract
Porcine circovirus2 (PCV2) infection in pigs is one of the major causes of economic loss to the farmers in terms of low production, slow growth and increase post-weaning mortality rate. The effect of PCV2 infection on haemogram, serum biochemical profile and oxidant/anti-oxidant status is not well established in pigs. In the present study, haemogram, serum biochemical profile and oxidant/anti-oxidant status were assessed in pigs confirmed positive for PCV2 infections as evidenced by commercially available enzyme-linked immunosorbent assay kit (n = 151) and polymerase chain reaction (PCR) (n = 42) among a total of 306 number of pigs included in the study. Non-infected healthy pigs (n = 6) served as healthy control. The total erythrocyte count (TEC), haemoglobin (Hb), packed cell volume (PCV), total leukocyte count (TLC), differential leukocyte count (DLC) and thrombocyte count were measured. The levels of total protein, albumin, globulin, total bilirubin, direct bilirubin, blood urea nitrogen (BUN), creatinine and glucose and enzymes viz. alanine transaminase (ALT), aspartate transaminase (AST), gamma-glutamyl transferase (GGT) and alkaline phosphatase (ALP) were measured. Oxidative stress indicators such as plasma malondialdehyde (MDA) and total anti-oxidant activity (TAOA) were measured using commercially available kits. The mean values of TLC, lymphocytes and thrombocyte count were significantly (P < 0.05) low in PCV2-infected pigs. The levels of globulin, AST, GGT, BUN and creatinine were significantly increased (P < 0.05) whereas levels of albumin and glucose significantly (P < 0.05) decreased in PCV2-infected pigs. The significant increase (P < 0.05) in MDA level and significant decrease (P < 0.05) in TAOA level were noticed in PCV2-infected animals as compared with healthy control. The present study supports immunosuppression, possible multiple organ damage and oxidative stress associated with naturally occurring PCV2 infection in pigs. Timely vaccination and managemental practices can reduce PCV2 infection in farms. In spite of many research studies, there is still paucity of detailed systemic study on haemato-biochemical alteration and oxidative stress associated with PCV2 infection.
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Spectroscopic, cytotoxicity and molecular docking studies on the interaction between 2,4-dinitrophenylhydrazine derived Schiff bases with bovine serum albumin. SENSORS INTERNATIONAL 2020. [DOI: 10.1016/j.sintl.2020.100048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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Developmental abnormalities of vertebral column: a study in dried vertebrae of western Odisha population. J ANAT SOC INDIA 2018. [DOI: 10.1016/j.jasi.2018.06.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Remote Speed Control of Brushless DC Motor with Display. INTERNATIONAL JOURNAL OF AUTOMATION AND SMART TECHNOLOGY 2018. [DOI: 10.5875/ausmt.v8i2.1458] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Traditional and Current Knowledge on the Utilization of Mahua (Madhuca latifolia L.) Flowers by the Santhal Tribe in Similipal Biosphere Reserve, Odisha, India. ACTA ACUST UNITED AC 2016. [DOI: 10.32945/atr3818.2016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Mahua ( Madhuca latifolia L.) (also called as mahua) is a tree commonly found in
mixed deciduous forests of Asian and Australian Continents, often growing on
rocky and sandy soils. The various parts of this tree serve as food, feed, and
medicine, thus form a part and parcel in the sustainability of livelihood of the tribal
people. A study was conducted in 2009 among the people of Santhal tribe in
Odisha, India to get information (traditional and current) on the uses of this tree
species, particularly on its edible flowers. The study area concentrated in and
around the deep forest pockets of Chandbill village of Bangiriposi Block on the
northern border of the Similipal Biosphere Reserve, Odisha. This tree species is
found to substantially contribute to all sectors of tribal economy like food
(flowers), beverage (flowers), and medicine (flowers, seeds and bark). Mahua
flowers are fermented in to a distilled alcoholic beverage (country liquor, locally
called “ ) in household and commercial scale. , having an alcohol mahuli” Mahuli
percentage of 30-40 %, is used as a supplement to rice as staple diet in their food
habit.
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Middle lobe syndrome: a rare presentation of allergic bronchopulmonary aspergillosis. Eur Ann Allergy Clin Immunol 2014; 46:147-151. [PMID: 25053632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Allergic bronchopulmonary aspergillosis (ABPA) is a disease predominantly seen in susceptible asthmatic subjects, due to a hypersensitivity phenomenon caused by colonisation of the airways by Aspergillus species. Although collapse, both lobar and segmental due to mucoid impaction, is not uncommon in ABPA, a middle lobe syndrome (MLS) secondary to ABPA is rather an uncommon association. We report this rare and unusual clinical presentation in a 36-year-old male, who presented for evaluation of a "non resolving pneumonia". Imaging suggested the presence of a MLS and central bronchiectasis. Further investigations revealed that the patient met 6/8 of the essential diagnostic criteria for ABPA. Appropriate therapy with oral corticosteroids resulted in remarkable symptomatic improvement.
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New insights into carbon dioxide interactions with benzimidazole-linked polymers. Chem Commun (Camb) 2014; 50:3571-4. [DOI: 10.1039/c3cc45901b] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Computational studies reveal that the excellent performance of benzimidazole-linked polymers in selective carbon dioxide capture over methane and nitrogen is facilitated by several electrostatic interactions involving the Lewis basic sites and the aryl C–H of the benzimidazole units with CO2.
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Biosynthesis of silver nanoparticle from leaf extract of Desmodium gangeticum (L.) DC. and its biomedical potential. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 116:424-427. [PMID: 23973589 DOI: 10.1016/j.saa.2013.07.033] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 07/12/2013] [Accepted: 07/21/2013] [Indexed: 06/02/2023]
Abstract
An aqueous leaf extract of Desmodium gangeticum was employed to synthesize silver nano particles. Rapid formation of stable silver nanoparticles were observed on exposure of the aqueous leaf extract with solution of silver nitrate. The silver nanoparticles were characterized by UV-visible spectroscopy, scanning electron microscopy, energy dispersive X-ray analysis and transmission electron microscopy (TEM), and Fourier Transform Infra-Red spectroscopy (FTIR) UV-visible spectroscopy, scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDAX), transmission electron microscopy (TEM), and Fourier Transform Infra-Red spectroscopy (FTIR). UV-visible spectrum of the aqueous medium peaked at 450 nm corresponding to the plasmon absorbance of silver nanoparticles. SEM analysis revealed the spherical shape of the particles with sizes ranging from 18 to 39 nm and the EDAX spectrum confirmed the presence of silver along with other elements in the plant metabolite. Further, these biologically synthesized nanoparticles were found to be highly toxic against pathogenic bacteria Escherichia coli, thus implying significance of the present study in production of biomedical products.
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Vertebro-cerebral cryptococcosis mimicking tuberculosis: a diagnostic dilemma in countries with high burden of tuberculosis. Indian J Med Microbiol 2012; 30:245-8. [PMID: 22664450 DOI: 10.4103/0255-0857.96715] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
We report a case of a 30-year-old immunocompetent man with disseminated cryptococcosis who was initially treated with antitubercular therapy due to clinical and radiological diagnosis of vertebro-cerebral tuberculosis. The diagnosis of Cryptococcus infection was made due to incidental isolation of this fungus from blood culture with negative cerebrospinal fluid culture results. Though disseminated cryptococcosis with central nervous system, skeletal, and skin involvement is an uncommon manifestation of Cryptococcus neoformans infection, a high clinical suspicion and early initiation of therapy is needed to recognise and treat such patients efficiently.
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Experimental investigation on an entrained flow type biomass gasification system using coconut coir dust as powdery biomass feedstock. BIORESOURCE TECHNOLOGY 2012; 117:99-106. [PMID: 22613886 DOI: 10.1016/j.biortech.2012.04.049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2012] [Revised: 04/14/2012] [Accepted: 04/15/2012] [Indexed: 06/01/2023]
Abstract
Based on an entrained flow concept, a prototype atmospheric gasification system has been designed and developed in the laboratory for gasification of powdery biomass feedstock such as rice husks, coconut coir dust, saw dust etc. The reactor was developed by adopting L/D (height to diameter) ratio of 10, residence time of about 2s and a turn down ratio (TDR) of 1.5. The experimental investigation was carried out using coconut coir dust as biomass feedstock with a mean operating feed rate of 40 kg/h The effects of equivalence ratio in the range of 0.21-0.3, steam feed at a fixed flow rate of 12 kg/h, preheat on reactor temperature, product gas yield and tar content were investigated. The gasifier could able to attain high temperatures in the range of 976-1100 °C with gas lower heating value (LHV) and peak cold gas efficiency (CGE) of 7.86 MJ/Nm3 and 87.6% respectively.
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Highly selective CO2/CH4 gas uptake by a halogen-decorated borazine-linked polymer. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm31123b] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Modelling and Simulation of Pseudolite-based Navigation: A GPS-independent Radio Navigation System. DEFENCE SCI J 2010. [DOI: 10.14429/dsj.60.577] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Meningitis in a newborn infant with urosepsis, negative blood cultures and initially normal cerebrospinal fluid findings. J Matern Fetal Neonatal Med 2009; 15:129-31. [PMID: 15209122 DOI: 10.1080/14767050410001659860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
This case presentation supports the observation that initial cerebrospinal fluid findings can be normal in newborn infants with sepsis syndrome who then develop evidence for meningeal involvement. Therefore, if initial lumbar puncture results are negative, a repeat lumbar puncture is recommended to look for meningitis in newborns that are critically ill with sepsis syndrome.
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Mercaptoethylpyrazine promoted electrochemistry of redox protein and amperometric biosensing of uric acid. Biosens Bioelectron 2007; 23:556-61. [PMID: 17719217 DOI: 10.1016/j.bios.2007.06.012] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2007] [Accepted: 06/15/2007] [Indexed: 11/16/2022]
Abstract
Electrochemistry of microperoxidase-11 (MPx-11) anchored on the mixed self-assembled monolayer (SAM) of 2-(2-mercaptoethylpyrazine) (PET) and 4,4'-dithiodibutyric acid (DTB) on gold (Au) electrode and the biosensing of uric acid (UA) is described. MPx-11 has been covalently anchored on the mixed SAM of PET and DTB on Au electrode. MPx-11 on the mixed self-assembly exhibits reversible redox response characteristic of a surface confined species. The heterocyclic ring of PET promotes the electron transfer between the electrode and the redox protein. The apparent standard rate constant kapps obtained for the redox reaction of MPx-11 on the mixed monolayer is approximately 2.15 times higher than that on the single monolayer of DTB modified electrode. MPx-11 efficiently mediates the electrocatalytic reduction of H2O2. MPx-11 electrode is highly sensitive to H2O2 and it shows linear response for a wide concentration range. The electrocatalytic activity of the MPx-11 electrode is combined with the enzymatic activity of uricase (UOx) to fabricate uric acid biosensor. The bienzyme assembly is highly sensitive towards UA and it could detect UA as low as 2 microM at the potential of -0.1 V. The biosensor shows linear response with a sensitivity of 3.4+/-0.08 nA cm(-2) microM(-1). Ascorbate (AA) and paracetamol (PA) do not significantly interfere in the amperometric sensing of UA.
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Electrochemically triggered Michael addition on the self-assembly of 4-thiouracil: generation of surface-confined redox mediator and electrocatalysis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2007; 23:1600-7. [PMID: 17279634 DOI: 10.1021/la062586u] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Generation of a surface-confined redox mediator (RM) by an electrochemically triggered Michael addition reaction and the electrocatalytic properties of the mediator are described. Electrogenerated o-quinone undergoes Michael addition reaction with the self-assembled monolayer (SAM) of 4-thiouracil (4-TU) on a gold (Au) electrode and yields a surface-confined RM, 1-(3,4-dihydroxyphenyl)-4-mercapto-1H-pyrimidin-2-one (DPTU). The Michael addition reaction depends on the electrolysis potential and time, solution pH, and concentration of catechol (CA) used in the reaction. The redox mediator, DPTU, exhibits reversible redox response, characterstic of a surface-confined species at approximately 0.22 V in neutral pH. The anodic peak potential of DPTU shifts by 58+/-2 mV while changing the solution pH by one unit, suggesting that protons and electrons taking part in the redox reaction are in the ratio of 1:1. The apparent rate constant (ksapp) for the heterogeneous electron-transfer reaction of the RM was determined to be 114+/-5 s-1. The surface coverage (Gamma) of DPTU on the electrode surface was 8.2+/-0.1x10(-12) mol/cm2. DPTU shows excellent electrocatalytic activity toward oxidation of reduced nicotinamide adenine dinucleotide (NADH) with activation overpotential, which is approximately 600 mV lower than that observed at the unmodified Au electrode. The dipositive cations in the supporting electrolyte solution amplify the electrocatalytic activity of DPTU. A 2.5-fold enhancement in the catalytic current was observed in the presence of Ca2+ or Ba2+ ions. The sensitivity of the electrode toward NADH in the presence and absence of Ca2+ ions was 0.094+/-0.011 and 0.04+/-0.0071 nA cm-2 nM-1, respectively. A linear increase in the catalytic current was obtained up to the concentration of 0.8 mM, and the electrode can detect amperometrically as low as 25 nM of NADH in neutral pH.
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Mediatorless voltammetric oxidation of NADH and sensing of ethanol. Biosens Bioelectron 2006; 21:949-56. [PMID: 16257664 DOI: 10.1016/j.bios.2005.03.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2005] [Revised: 02/24/2005] [Accepted: 03/01/2005] [Indexed: 10/25/2022]
Abstract
A simple, selective and sensitive method for the detection of NADH and ethanol is presented. Self-assembled monolayers (SAMs) of mercaptopyrimidine (MPM) and their derivatives, thiocytosine (TC) and 4,6-diamino-2-mercaptopyrimidine (DMP) on gold (Au) electrode are used for the voltammetric detection of NADH and ethanol in neutral aqueous solution. A decrease of 200-300 mV in the overpotential associated with an observable increase in the peak current was obtained for the oxidation of NADH on MPM and TC monolayer-modified electrodes without any redox mediator. The facilitated electron transfer for the oxidation of NADH at the TC monolayer is ascribed to the existence of stable cationic p-quinonoid form of TC. The electrode modified with DMP monolayer could not exhibit stable response for NADH owing to the fouling of electrode surface. The MPM and TC monolayer-modified electrodes show high selectivity and excellent sensitivity (MPM: 0.633+/-0.005 microA cm(-2) microM(-1); TC: 0.658+/-0.008 microA cm(-2) microM(-1)) towards NADH with detection limit (3sigma) of 2.5 and 0.5 microM, respectively. Presence of large excess of ascorbate (AA) does not interfere the detection of NADH and the monolayer-modified electrode shows individual voltammetric peaks for AA and NADH. Voltammetric sensing of ethanol using alcohol dehydrogenase on MPM and TC monolayer-modified electrode is successfully demonstrated and these electrode can detect as low as 0.5 mM ethanol in neutral pH. The sensitivity of the MPM and TC monolayer-modified electrodes toward ethanol was found to be 3.24+/-0.03 and 3.435+/-0.04 microA cm(-2) mM(-1), respectively.
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Prophylaxis of respiratory syncytial virus infection with intranasal siRNA-nanoparticles of the NS1 gene In Vivo. J Allergy Clin Immunol 2005. [DOI: 10.1016/j.jaci.2004.12.553] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Erratum: Inhibition of respiratory syncytial virus infection with intranasal siRNA nanoparticles targeting the viral NS1 gene. Nat Med 2005. [DOI: 10.1038/nm0205-233b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Role of posterior stabilisation in the management of tuberculosis of the dorsal and lumbar spine. THE JOURNAL OF BONE AND JOINT SURGERY. BRITISH VOLUME 2003; 85:100-6. [PMID: 12585586 DOI: 10.1302/0301-620x.85b1.13300] [Citation(s) in RCA: 112] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We present a prospective study of patients with tuberculosis of the dorsal, dorsolumbar and lumbar spine after combined anterior (radical debridement and anterior fusion) and posterior (instrumentation and fusion) surgery. The object was to study the progress of interbody union, the extent of correction of the kyphosis and its maintenance with early mobilisation, and the incidence of graft and implant-related problems. The American Spinal Injury Association (ASIA) score was used to assess the neurological status. The mean preoperative vertebral loss was highest (0.96) in the dorsal spine. The maximum correction of the kyphosis in the dorsolumbar spine was 17.8 degrees. Loss of correction was maximal in the lumbosacral spine at 13.7 degrees. All patients had firm anterior fusion at a mean of five months. The incidence of infection was 3.9% and of graft-related problems 6.5%. We conclude that adjuvant posterior stabilisation allows early mobilisation and rehabilitation. Graft-related problems were fewer and the progression and maintenance of correction of the kyphosis were better than with anterior surgery alone. There is no additional risk relating to the use of an implant either posteriorly or anteriorly even when large quantities of pus are present.
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