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Madhusudhan P, Sinha P, Rajput LS, Bhattacharya M, Sharma T, Bhuvaneshwari V, Gaikwad K, Krishnan SG, Singh AK. Effect of temperature on Pi54-mediated leaf blast resistance in rice. World J Microbiol Biotechnol 2019; 35:148. [PMID: 31549233 DOI: 10.1007/s11274-019-2724-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 09/06/2019] [Indexed: 12/19/2022]
Abstract
Assessment of temperature effect on plant resistance against diseases has become essential under climate change scenario as temperature rise is anticipated to modify host resistance. To determine temperature influence on resistance gene, a pair of near-isogenic rice lines differing for the Pi54 resistance gene was assessed against leaf blast. Blast resistance was determined as the extent of infection efficiency (IE) and sporulation (SP) at suboptimal (22 °C and 32 °C) and optimal temperature (27 °C) of pathogen aggressiveness. Relative resistance for IE and SP was higher at suboptimal temperature as compared to that of optimal temperature. Maximum level of resistance was at 22 °C where higher levels of expression of Pi54 and defence-regulatory transcription factor WRKY45 were also noted. At 32 °C, although some level of resistance noted, but level of Pi54 and WRKY45 expression was too low, suggesting that resistance recorded at higher temperature was due to reduced pathogen aggressiveness. At the optimal temperature for pathogen aggressiveness, comparatively lower levels of Pi54 and WRKY45 expression suggest possible temperature-induced interruption of the defence processes. The variation in resistance patterns modulated by temperature is appeared to be due to pathogen's sensitivity to temperature that leads to varying levels of Pi54 gene activation. Quick and violent activity of the pathogen at optimal temperature came into sight for the interruption of defence process activated by Pi54 gene. Evaluation of blast resistance genes under variable temperature conditions together with weather data could be applied in screening rice genotypes for selection of resistance having resilience to temperature rise.
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Singh AK, Kumar M, Kumar V, Roy D, Kushwaha R, Vaswani S, Kumar A. Feed utilization, blood metabolites and ingestive behavior in Sahiwal calves divergently selected for low and high residual feed intake. VET ARHIV 2019. [DOI: 10.24099/vet.arhiv.0274] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Karmacharya RM, Shrestha BK, Shrestha B, Singh AK, Bhandari N, Dhakal P, Dahal S. <p>Varicose vein invasive intervention at university hospital of Nepal, our experience in the last six years</p>. OPEN ACCESS SURGERY 2019. [DOI: 10.2147/oas.s214962] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Choudhary JS, Mali SS, Mukherjee D, Kumari A, Moanaro L, Rao MS, Das B, Singh AK, Bhatt BP. Spatio-temporal temperature variations in MarkSim multimodel data and their impact on voltinism of fruit fly, Bactrocera species on mango. Sci Rep 2019; 9:9708. [PMID: 31273224 PMCID: PMC6609607 DOI: 10.1038/s41598-019-45801-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 05/22/2019] [Indexed: 12/02/2022] Open
Abstract
Fruit flies are the most serious economic insect pests of mango in India and other parts of the world. Under future climate change, shifts in temperature will be a key driver of ecosystem function especially in terms of insect pest dynamics. In this study, we predicted the voltinism of the three economically important fruit fly species viz., Bactrocera dorsalis (Hendel), Bactrocera correcta (Bezzi) and Bactrocera zonata (Saunders) of mango from 10 geographical locations in India using well established degree day approaches. Daily minimum and maximum temperature data were generated by using seven General Circulation Models (GCMs) along with their ensemble, in conjunction with the four representative concentration pathways (RCPs) scenarios (RCP 2.6, RCP 4.5, RCP 6.0 and RCP 8.5) and three time periods (2020, 2050 and 2080) generated from MarkSim® DSSAT weather file generator. Historical data from 1969–2005 of these 10 locations were considered as baseline period. Under future predicted climates, model outputs indicates that all three fruit fly species will produce higher number of generations (1–2 additional generations) with 15–24% reduced generation time over the baseline period. The increased voltinism of fruit fly species due to increased temperature may lead to ≃5% higher infestation of mango fruits in India by the year 2050. Analysis of variance revealed that ‘geographical locations’ explained 77% of the total variation in voltinism followed by ‘time periods’ (11%). Such increase in the voltinism of fruit flies and the consequent increases in the infestation of mango fruits are likely to have significant negative impacts on mango protection and production.
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Gupta A, Singh AK, Goel D, Gaind AN, Mittal S. Erratum to: Percutaneous Endoscopic Gastrostomy Tube Placement: A Single Center Experience. JOURNAL OF DIGESTIVE ENDOSCOPY 2019. [DOI: 10.1055/s-0039-3402701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Singh AK, Weber C, Varshney A, Gupta S, Kazim SN, Sanal MG, Rethwilm A, Sarin SK. Characterization of liver specific promoters in a foamy viral vector pMD09. Acta Virol 2019; 63:162-168. [PMID: 31230445 DOI: 10.4149/av_2019_207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Foamy viruses (FVs) or spumaviruses are retroviruses that are explored as vectors for gene therapy. The good feature of foamy viruses is its broad tropism; however, their infections result in non-targeted gene expression. Here, we attempted to design the liver targeted viral gene delivery by employing liver specific gene promoters like albumin (ALB), transthyretin (TTR) and hepatitis B virus (HBV) promoters. We compared the relative gene expression of liver specific promoters versus the U3 promoter in liver cell line (HepG2) and non-liver cell lines: human fibrosarcoma cell line (HT1080), baby hamster kidney cell line (BHK), human embryonic kidney cell line (HEK 293T) and cervical cancer cell line (HeLa). We have found that the promoter exchange didn't affect viral assembly. The ability to drive gene expression was best with TTR promoter which was followed by HBV and ALB promoter. The use of TTR, HBV and ALB promoters are helpful in achieving liver specific gene expression. Keywords: foamy virus; gene therapy; liver; albumin; transthyretin promoter; HBV promoter.
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Misra P, Singh AK, Archana S, Lohiya A, Kant S. Relationship between body mass index and percentage of body fat, estimated by bio-electrical impedance among adult females in a rural community of North India: A cross-sectional study. J Postgrad Med 2019; 65:134-140. [PMID: 31169130 PMCID: PMC6659436 DOI: 10.4103/jpgm.jpgm_218_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction: Body adiposity measured by percentage of body fat (BF%) is found to be better predictor of cardiovascular morbidity and mortality than body mass index (BMI). Limited information exists showing relationship between BMI and BF% in North Indian population. Objectives: To study the relationship between BMI and BF% among North Indian adult females across various age strata and level of BMI. Materials and Methods: This was a cross-sectional study conducted at Ballabgarh Health and Demographic Surveillance Site (HDSS) among randomly selected females. BMI using standard techniques and BF% using bioelectrical impedance analysis was estimated. Linear regression was performed using general linear model with BF% as dependent variable and BMI as main independent variable. Results: Mean (±2 SD) age of participants was 41.3 ± 15.7 years. Mean BMI (±SD) was 23.3 (±4.6) kg/m2, whereas mean fat mass (±2 SD) and BF% (±95% CI) was 19.2 (±7.9) kg and 33.6 (±6.9) %. BMI and BF% were highly correlated among obese (r = 0.77), whereas least correlated (r = 0.32) in underweight females. Across age strata, correlation between BMI and BF% was maximum in 18–35 years age group (r = 0.95), whereas least in females ≥56 years (r = 0.67). Age and BMI together predicted 73% of variability in BF% in hierarchical linear regression model. Conclusions: In this population, we have found strong correlation between BMI and BF% particularly at higher level of BMI and in younger females. There is need to conduct more robust prospective longitudinal studies to assess BF%, which is a better predictor of cardiovascular morbidity and mortality.
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Jat SL, Parihar CM, Singh AK, Kumar B, Choudhary M, Nayak HS, Parihar MD, Parihar N, Meena BR. Energy auditing and carbon footprint under long-term conservation agriculture-based intensive maize systems with diverse inorganic nitrogen management options. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 664:659-668. [PMID: 30763846 DOI: 10.1016/j.scitotenv.2019.01.425] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 01/20/2019] [Accepted: 01/31/2019] [Indexed: 05/12/2023]
Abstract
A greater energy grant in diesel-fed machinery driven farming substantiate the higher GHGs emission along with improper input (fertilizer, pesticide and irrigation) use and intensive soil management. Practicing conservation tillage, residue retention and diversified crop rotations were advocated because of their multiple benefits. Hence we explored the energy requirement and carbon footprint of conservation agriculture (CA) based maize production systems. Coated N fertilizer [sulphur coated urea (SCU) and neem coated urea (NCU)] were compared with unfertilized and uncoated prilled urea (PU) in the scenario of with and without residue retention on permanent beds (PB) under diversified maize systems [MMuMb, maize-mustard-mungbean and MWMb, maize-wheat-mungbean] in search of a sustainable and energy efficient production system with lesser C-footprint. Results of the 4-year study showed that crops planted on permanent bed with crop residue (PB+R) registered 11.7% increase in system productivity compared to PB without residue (PB-R). N management through Neem coated urea (NCU) recorded 2.3 and 10.9% higher system productivity compared with non-coated prilled urea plot under PB-R and PB+R, respectively. MMuMb was marginally superior than MWMb system in terms of cropping sequence yield, profitability, and energy and carbon use efficiency. Crop residue retention in zero tilled PB increased cost of cultivation by 125 and 147 USD/ha in MMuMb and MWMb systems, respectively. The quantified carbon footprint value was higher in MWMb system. In CA-based practices, crop residues management contributed the highest energy input (61.5-68.4%) followed by fertilizer application (17-20%). Among N management practices, neem coated urea (NCU) significantly improved system productivity and profitability in all the residue applied plots compared to un-fertilized and prilled urea (PU) applied plots. Similarly, higher energy output was also observed in NCU treated plots. However, carbon footprint value was higher in PU (268-285 CO2-e kg/Mg) plots than NCU (259-264 CO2-e kg/Mg) treated plots. Thus, the study supports and recommends that the CA-based MMuMb system with efficient N management through NCU is an environmentally safe, clean and energy efficient one, hence can reduce carbon footprint, will ensure food security and will mitigate climate change.
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Fechtner S, Singh AK, Srivastava I, Szlenk CT, Muench TR, Natesan S, Ahmed S. Cannabinoid Receptor 2 Agonist JWH-015 Inhibits Interleukin-1β-Induced Inflammation in Rheumatoid Arthritis Synovial Fibroblasts and in Adjuvant Induced Arthritis Rat via Glucocorticoid Receptor. Front Immunol 2019; 10:1027. [PMID: 31139184 PMCID: PMC6519139 DOI: 10.3389/fimmu.2019.01027] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 04/23/2019] [Indexed: 12/12/2022] Open
Abstract
Management of pain in the treatment of rheumatoid arthritis (RA) is a priority that is not fully addressed by the conventional therapies. In the present study, we evaluated the efficacy of cannabinoid receptor 2 (CB2) agonist JWH-015 using RA synovial fibroblasts (RASFs) obtained from patients diagnosed with RA and in a rat adjuvant-induced arthritis (AIA) model of RA. Pretreatment of human RASFs with JWH-015 (10–20 μM) markedly inhibited the ability of pro-inflammatory cytokine interleukin-1β (IL-1β) to induce production of IL-6 and IL-8 and cellular expression of inflammatory cyclooxygenase-2 (COX-2). JWH-015 was effective in reducing IL-1β-induced phosphorylation of TAK1 (Thr184/187) and JNK/SAPK in human RASFs. While the knockdown of CB2 in RASFs using siRNA method reduced IL-1β-induced inflammation, JWH-015 was still effective in eliciting its anti-inflammatory effects despite the absence of CB2, suggesting the role of non-canonical or an off-target receptor. Computational studies using molecular docking and molecular dynamics simulations showed that JWH-105 favorably binds to glucocorticoid receptor (GR) with the binding pose and interactions similar to its well-known ligand dexamethasone. Furthermore, knockdown of GR using siRNA abrogated JWH-015's ability to reduce IL-1β-induced IL-6 and IL-8 production. In vivo, administration of JWH-015 (5 mg/kg, daily i.p. for 7 days at the onset of arthritis) significantly ameliorated AIA in rats. Pain assessment studies using von Frey method showed a marked antinociception in AIA rats treated with JWH-015. In addition, JWH-015 treatment inhibited bone destruction as evident from micro-CT scanning and bone analysis on the harvested joints and modulated serum RANKL and OPG levels. Overall, our findings suggest that CB2 agonist JWH-015 elicits anti-inflammatory effects partly through GR. This compound could further be tested as an adjunct therapy for the management of pain and tissue destruction as a non-opioid for RA.
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Singh AK. Variations in Customer Loyalty: Study of Different Mobile Service Providers. INTERNATIONAL JOURNAL OF MANAGEMENT STUDIES 2019. [DOI: 10.18843/ijms/v6i2(1)/11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Singh AK. Age as a Determinant of Customer Loyalty: Study of Mobile Subscribers. INTERNATIONAL JOURNAL OF MANAGEMENT STUDIES 2019. [DOI: 10.18843/ijms/v6i2(2)/13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Abdelhaseib MU, Singh AK, Bhunia AK. Simultaneous detection of Salmonella enterica, Escherichia coli and Listeria monocytogenes in food using a light scattering sensor. J Appl Microbiol 2019; 126:1496-1507. [PMID: 30761711 DOI: 10.1111/jam.14225] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 02/04/2019] [Accepted: 02/11/2019] [Indexed: 12/13/2022]
Abstract
AIM To investigate the use of a light scattering sensor, BActerial Rapid Detection using Optical scattering Technology (BARDOT) coupled with a multipathogen selective medium, Salmonella, Escherichia and Listeria (SEL), for concurrent detection of the three major foodborne pathogens in a single assay. METHODS AND RESULTS BARDOT was used to detect and distinguish the three major pathogens, Salmonella enterica, Shiga toxin-producing Escherichia coli (STEC) and Listeria monocytogenes from food based on colony scatter signature patterns on SEL agar (SELA). Multiple strains of three test pathogens were grown on SELA, and BARDOT was used to generate colony scatter image libraries for inclusive (SEL Library) and exclusive (non-SEL Library) bacterial group. These pathogens were further differentiated using the SEL scatter image library. Raw chicken and hotdog samples were artificially inoculated with pathogens (100 CFU per 25 g each), and enriched in SEL broth at 37°C for 18 h and colonies were grown on SELA for 11-22 h before screening with BARDOT. The BARDOT sensor successfully detected and differentiated Salmonella, STEC and Listeria on SELA with high classification accuracy 92-98%, 91-98% and 83-98% positive predictive values (PPV) respectively; whereas the nontarget strains showed only 0-13% PPV. BARDOT-identified colonies were further confirmed by multiplex PCR targeting inlB gene of L. monocytogenes, stx2 of STEC and sefA of S. enterica serovar Enteritidis. CONCLUSIONS The results show that BARDOT coupled with SELA can efficiently screen for the presence of three major pathogens simultaneously in a test sample within 29-40 h. SIGNIFICANCE AND IMPACT OF THE STUDY This innovative SELA-BARDOT detection platform can reduce turnaround time and economic burden on food industries by offering a label-free, noninvasive on-plate multipathogen screening technology for reducing microbial food safety and public health concerns.
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Singh AK, Malla BR, Gurung RB. Where is the Perforation ? Rare Complication of Endoscopic Retrograde Cholangio Pancreatography. Kathmandu Univ Med J (KUMJ) 2019; 17:154-157. [PMID: 32632067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Perforation is one of the most feared complications of Endoscopic Retrograde Cholangio Pancreatography (ERCP). ERCP has become important method for treating biliary-pancreatic diseases. Perforation related with Endoscopic Retrograde Cholangio Pancreatography is an infrequent, but if happens is a severe complication. Reported incidence of Edoscopic Retrograde Cholangio Pancreatography related perforation is 0.3-6%. Its mortality is as high as 37.5%. In our hospital since 2010 AD, There were 6 Perforations related to Endoscopic Retrograde Cholangio Pancreatography done in 4787 cases. This is a case of Endoscopic Retrograde Cholangio Pancreatography related perforation with no site of perforation recognized during surgical management.
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Chanotiya CS, Yadav A, Singh AK, Mathela CS. Composition of the Leaf and Inflorescence Essential Oil of Pogostemon benghalensis Burm. F. from Kumaon. Nat Prod Commun 2019. [DOI: 10.1177/1934578x0700200915] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Two samples of Pogostemon benghalensis Burm. F. collected from different altitudes of the Kumaon region of Uttarakhand have been analyzed by GC and GC-MS. The inflorescence oil of sample I contained β-bisabolene (18%), ( E)-β-ocimene (3.7%), and 1-octen-3-ol (2.7%), but the leaf oil showed a high elemol content (20.5%), along with β-caryophyllene (12.5%), β-copaen-4α-ol (7.7%), α-humulene (4%), and linalool (2.1%). In contrast, the inflorescence oil of sample II possessed β-caryophyllene (15.2%), β-copaen-4α-ol (9.6%), and β-bisabolene (8%), while ( E)-β-ocimene (5.2%), elemol (4%), α-guaiene (3.8%), and humulene epoxide II (2.4%) were found in the leaf essential oil. Elemol, β-copaen-4α-ol, ( Z)- and ( E)-β-ocimene are being reported for the first time from this species.
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Goel MK, Kukreja AK, Singh AK, Khanuja SPS. In Vitro Plant Growth Promoting Activity of Phyllocladane Diterpenoids Isolated from Callicarpa macrophylla Vahl. in Shoot Cultures of Rauwolfia serpentina. Nat Prod Commun 2019. [DOI: 10.1177/1934578x0700200802] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Phyllocladane diterpenoids, particularly calliterpenone (1) and calliterpenone monoacetate (2), isolated from leaves of Callicarpa macrophylla, produced significantly higher growth and multiplication of in vitro shoot cultures of Rauwolfia serpentina at 0.25 and 0.5 mg/L concentrations, respectively, compared to certain other plant growth regulators (0.1-5.0 mg/L) tested under in vitro conditions. This is the first report of the plant growth promoting activities of 1 and 2 in plant tissue cultures.
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Kane SR, Sinha AK, Singh AK, Kumar S. Experimental setup to measure thermal waves generated by X-ray absorption using pyroelectric sensor. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2019; 90:033301. [PMID: 30927779 DOI: 10.1063/1.5078408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 02/07/2019] [Indexed: 06/09/2023]
Abstract
Pyroelectric detectors are widely used for infrared radiation detection, whereas these can also be used in the X-ray region. They have multiple advantages when used at synchrotron radiation sources, such as (a) can be used with a white beam (high flux), (b) have a flat spectral response, and (c) can be used both as a detector and as a sample. However, when used in the hard X-ray region, absorption in the detector plays an important role depending upon the thickness of the detector. Hence, the estimation of the responsivity of the detector is important. In this paper, we report an improved experimental setup for the measurement of a pyroelectric signal in the hard X-ray region. The responsivity (V/W) of a pyroelectric detector for absorbed radiation in the hard x-ray region is measured. Measurements of the K-edge x-ray absorption fine structure of 10-μm copper and nickel foils are carried out using a LiTaO3 pyroelectric detector and compared with the measurements carried out using an ionization chamber as a sensor for the same foils. Absorption spectra near the Ta LIII and LII edges in LiTaO3, measured using a LiTaO3 crystal both as a sample and as a sensor, are also reported in this paper.
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Singh P, Singh SN, Tiwari AK, Pathak SK, Singh AK, Srivastava S, Mohan N. Integration of sugarcane production technologies for enhanced cane and sugar productivity targeting to increase farmers' income: strategies and prospects. 3 Biotech 2019; 9:48. [PMID: 30729072 DOI: 10.1007/s13205-019-1568-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 01/03/2019] [Indexed: 10/27/2022] Open
Abstract
The idea of doubling the farmers' income in next 5 years has been slated by the Government of India. The specific target of increasing sugarcane farmers' income could be achieved by developing cost-effective technologies, transferring them from laboratory to land, educating the farmers and creating a linkage between all stakeholders. Consistent efforts shall be required to harness all possible sources for increasing farmer's income in and outside the agriculture sector with respect to improvement in sugarcane and sugar productivity, enhancement in resource use efficiency and adopting various other ways and means including intercropping, management of pests and diseases, use of biotechnological tools and minimizing post-harvest deterioration. The advances in sugarcane biotechnology could become remarkable in the coming years, both in terms of improving productivity as well as increasing the value and utility of this crop substantially. In future, genetically modified sugarcane varieties with increased resistance to different biotic and abiotic stresses would serve more towards sugarcane crop improvement. Any possibility of enhancement in the income of sugarcane farmers shall also be dependent upon the profitability and sustainability of the sugar industry. Integration of sugarcane production technologies for improvement in farm productivity, diversified sugarcane production system, reduced cost of cultivation along with increased processing plant efficiency and diversification to produce value added products shall ensure smooth and higher payment to the farmers. Development of low-cost technologies to convert "waste to resource" on a smaller scale shall also help the farmers to increase their income further. This paper focuses on possible measures to be taken up in each aspects of sugarcane cultivation including biotechnological approaches to achieve the goal of enhancing the income of sugarcane farmers substantially, particularly in the sub-tropical region of India.
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Pandit P, Kumar S, Mohapatra M, Bangotra P, Mehra R, Singh AK. Structural, photoluminescence and dielectric investigations of phosphatic shale. LUMINESCENCE 2019; 34:212-221. [PMID: 30697953 DOI: 10.1002/bio.3598] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Revised: 11/21/2018] [Accepted: 12/24/2018] [Indexed: 11/10/2022]
Abstract
In the current study, the structural and spectroscopic properties of phosphatic shale samples obtained from the Atomic Minerals Directorate for Exploration and Research were probed for potential use as a phosphor material. X-ray diffraction and Raman and Fourier transform infrared spectroscopy revealed that the beneficiated phosphatic shale samples were primarily monophasic consisting of fluorapatite [Ca5 (PO4 )3 F, (FAP)] with minor traces of haematite (α-Fe2 O3 ) and calcite (CaCO3 ). Energy dispersive X-ray fluorescence revealed the presence of U, Eu, Dy and Tb in the FAP matrix substituted at Ca(I) and Ca(II) sites of FAP. A reduced optical direct band gap of 4.46 eV was calculated from the Tauc plot. Photoluminescence spectral studies revealed multicolour emissions (red, yellow, green and blue) on ultraviolet light excitation that were attributed to luminescence spectra from rare earth ions Eu3+ , Tb3+ , U4+ and U6+ in the FAP matrix. The overall emissions for the rare earth and actinide-doped FAP were obtained in the cool white region and the corresponding Commission Internationale de l'Eclairage chromaticity coordinates were calculated to be (0.274, 0.317). The corresponding colour correlated temperature obtained was 9342 K. Furthermore, phosphatic shale had a high room temperature dielectric constant of 11 at a frequency of 1 kHz that demonstrated its suitability for use in biological sensors. The study showed that natural phosphatic shale could be a potential material for optical, biological and dielectric applications.
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Choudhary S, Arora S, Kumari A, Narwal V, Singh AK. Effect of quality of milk on physico-chemical characteristics of buffalo milk concentrate ( khoa) during storage. Journal of Food Science and Technology 2019; 56:1302-1315. [PMID: 30956310 DOI: 10.1007/s13197-019-03601-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/15/2019] [Accepted: 01/22/2019] [Indexed: 11/25/2022]
Abstract
The present work was conducted to evaluate the quality of milk (fresh/acidic/neutralized) on the physico-chemical, textural and fatty acid profile of khoa prepared from buffalo milk and stored in poly-alu-poly laminates for 30 °C/7 days and 5 °C/21 days, respectively. The degree of deterioration of common quality parameters was rapid during storage at 30 °C as compared to storage at 5 °C. Khoa stored at 30 °C showed greater variation in various physico-chemical and textural parameters as compared to khoa stored at 5 °C. Acidity, ash, tyrosine value, furosine, HMF, FFA, peroxide value, TBA value, butyric acid and stearic acid showed an increasing trend whereas, decrease in pH and oleic acid was observed as storage period progressed. Noticeable changes were observed in textural attributes of khoa during storage. However, the SDS-PAGE pattern of caseins from different types of khoa showed almost negligible deviation during storage.
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Malathi AN, Singh AK. Antimicrobial activity of rice starch based film reinforced with titanium dioxide (TiO2) Nanoparticles. ACTA ACUST UNITED AC 2019. [DOI: 10.5958/2395-146x.2019.00017.6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Balhara YPS, Kalra S, Bajaj S, Kuppili PP, Himanshu D, Atam V, Usman K, Singh V, Usman K, Singh V, Chaudhary SC, Chakravorty S, Wakhlu A, Fatma J, Tandon S, Maheshwari A, Gupta A, Parvez A, Chakravarty J, Chaudhary RR, Singh AK, Sawlani KK, Mathur M, Soni NK, Gupta OK, Gupta M, Agarwal S. Uttar Pradesh Association of Physicians of India Position Statement: Betel Quid (Paan) and Diabetes. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 2018; 66:11-12. [PMID: 31315339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Betel quid (paan) chewing is common in India, especially in Uttar Pradesh. Betel quid has multifaceted relationship with health, including metabolic and psychosocial health. The current recommendations have been released keeping in view the public health and clinical importance of this addictive behavior. The objective of this document is to offer clinical guidance for screening, diagnosis and management of co-occurring betel quid chewing among persons with Diabetes Mellitus (DM). The document aims to provide education and guidance to clinicians engaged in care and management of persons with DM, and improve access to treatment for co-occurring betel quid chewing among persons with DM. The current recommendation grades are based on published evidence, and categorized as strong, intermediate, weak and no evidence. The strength of these recommendations is based on the level of evidence.
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Parihar CM, Parihar MD, Sapkota TB, Nanwal RK, Singh AK, Jat SL, Nayak HS, Mahala DM, Singh LK, Kakraliya SK, Stirling CM, Jat ML. Long-term impact of conservation agriculture and diversified maize rotations on carbon pools and stocks, mineral nitrogen fractions and nitrous oxide fluxes in inceptisol of India. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 640-641:1382-1392. [PMID: 30021305 DOI: 10.1016/j.scitotenv.2018.05.405] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 05/31/2018] [Accepted: 05/31/2018] [Indexed: 06/08/2023]
Abstract
Given the increasing scarcity of production resources such as water, energy and labour coupled with growing climatic risks, maize-based production systems could be potential alternatives to intensive rice-wheat (RW) rotation in western Indo-Gangetic Plains (IGP). Conservation agriculture (CA) in maize systems has been widely promoted for minimizing soil degradation and ensuring sustainability under emerging climate change scenario. Such practices are also believed to provide mitigation co-benefits through reduced GHG emission and increased soil carbon sequestration. However, the combined effects of diversified crop rotations and CA-based management on GHG mitigation potential and other co-benefits are generally over looked and hence warrant greater attention. A field trial was conducted for 5-years to assess the changes in soil organic carbon fractions, mineral-N, N2O emission and global warming potential (GWP) of maize-based production systems under different tillage & crop establishment methods. Four diversified cropping systems i.e. maize-wheat-mungbean (MWMb), maize-chickpea-Sesbania (MCS), maize-mustard-mungbean (MMuMb) and maize-maize-Sesbania (MMS) were factorially combined with three tillage & crop establishment methods i.e. zero tilled permanent beds (PB), zero-tillage flat (ZT) and conventional tillage (CT) in a split-plot design. After 5-years of continued experimentation, we recorded that across the soil depths, SOC content, its pools and mineral-N fractions were greatly affected by tillage & crop establishment methods and cropping systems. ZT and PB increased SOC stock (0-30 cm depth) by 7.22-7.23 Mg C ha-1 whereas CT system increased it only by 0.88 Mg C ha-1as compared to initial value. Several researchers reported that SOC & mineral-N fraction contents in the top 30 cm soil depth are correlated with N2O-N emission. In our study, global warming potential (GWP) under CT system was higher by 18.1 and 17.4%, compared to CA-based ZT and PB, respectively. Among various maize systems, GWP of MMS were higher by 11.2, 6.7 and 6.6%, compared that of MWMb (1212 kg CO2-eq. ha-1), MCS (1274 kg CO2-eq. ha-1) and MMuMb (1275 kg CO2-eq. ha-1), respectively. The results of our study suggest that CA and diversified crop rotations should be promoted in north-western IGP and other similar agro-ecologies across the globe for ensuring food security, restoration of soil health and climate change mitigation, the key sustainable development goals (SDGs).
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Singh AK, Fechtner S, Chourasia M, Sicalo J, Ahmed S. Critical role of IL-1α in IL-1β-induced inflammatory responses: cooperation with NF-κBp65 in transcriptional regulation. FASEB J 2018; 33:2526-2536. [PMID: 30272996 DOI: 10.1096/fj.201801513r] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The IL-1 cytokines are considered among the first family of cytokines that orchestrate acute and chronic inflammatory diseases. Both IL-1β and IL-1α are members of the IL-1 family; however, their distinct roles in the inflammatory processes remain poorly understood. We explored the role of IL-1α in IL-1β-activated signaling pathways causing synovial inflammation in rheumatoid arthritis (RA). Using synovial fibroblasts isolated from RA joints, we found that IL-1β significantly stimulated IL-1α expression, which was selectively inhibited by blocking the NF-κB pathway. Knockdown of IL-1α using small interfering RNA abolished IL-1β-induced pro-IL-1α and pro-IL-1β expression and suppressed inflammation. Native and chromatin immunoprecipitation studies showed that IL-1α cooperates in NF-κBp65 binding to the distal region of IL-1α promoter and to the proximal region of IL-1β promoter upstream of the transcription start site to stabilize their gene transcription. Molecular dynamics simulation of IL-1α or IL-1β binding to IL-1 receptor showed distinct interaction sites that corroborate with the ability of IL-1α to differentially activate phosphorylation of signaling proteins compared with IL-1β. Our study highlights the importance of IL-1α in mediating IL-1β-induced inflammation in addition to maintaining its expression and providing a rationale for targeting IL-1α to minimize the role of IL-1β in inflammatory diseases like RA.-Singh, A. K., Fechtner, S., Chourasia, M., Sicalo, J., Ahmed, S. Critical role of IL-1α in IL-1β-induced inflammatory responses: cooperation with NF-κBp65 in transcriptional regulation.
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Dave B, Dave AS, Dave AS, Chhabra DK, Singh AK, Vajpayee IN, Ojha BK, Behari S, Pandya S. Founders of Indian Neurosciences: Professor Vijay Shanker Dave-The inspiring initiator of neurosurgery in Uttar Pradesh. Neurol India 2018; 66:1244-1253. [PMID: 30232981 DOI: 10.4103/0028-3886.241394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Rathee VS, HC V, Khan SW, Singh AK, Shukla PK, Verma A, Trivedi S, Dwivedi US. Role of computed tomography morphodensitometry in predicting the outcome of shock wave lithotripsy. JOURNAL OF CLINICAL UROLOGY 2018. [DOI: 10.1177/2051415818764539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Objectives: The objective of this study was to predict the outcome of shock wave lithotripsy (SWL) on the basis of computed tomography (CT) morphodensitometry for ureteral and renal stones. We also assessed the possibility that Hounsfield unit (HU) values and the location of the stones could be used to predict the outcome of SWL. Material and methods: A prospective study was performed to measure stone size, location, composition, surface area, surface volume, stone burden, the skin-to-stone distance and the HU for solitary renal and ureteral stones by non-contrast CT studies (NCCT) from August 2013 to September 2015. Success of SWL was defined as: (1) being stone-free or (2) residual stone fragments < 4 mm by radiography/NCCT. Results: Of the 100 assessed patients, 68 patients (68%) were stone-free, 12 (12%) had residual stone fragments < 4 mm (clinically insignificant residual fragments) and 20 (20%) had residual stone fragments ≥ 4 mm/ancillary procedures. Multivariate analysis revealed that stone location and mean HU were significant predictors of SWL success. Receiver operating characteristic curves defined cut-off values for predicting treatment outcome. Treatment success rates were significantly higher for stones < 800 HU than with stones > 800 HU ( p = 0.160). Conclusion: Evaluation of stone HU values and stone location prior to SWL can predict treatment outcome and aid in the development of treatment strategies. Level of evidence 2 & 4
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Berrocoso JD, Kida R, Singh AK, Kim YS, Jha R. Effect of in ovo injection of raffinose on growth performance and gut health parameters of broiler chicken. Poult Sci 2018; 96:1573-1580. [PMID: 27920191 DOI: 10.3382/ps/pew430] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 10/26/2016] [Indexed: 12/13/2022] Open
Abstract
The effects of in ovo injection of raffinose (RFO) as a prebiotic on growth performance, relative weight of proventriculus, gizzard, drumstick and breast muscles, and ileum mucosa morphology were examined in Cobb 500 broilers. A total of 240 fertilized eggs were divided into 4 groups: a non-injected with intact shell and 3 levels of RFO solution (1.5, 3.0, and 4.5 mg in 0.2 mL of an aqueous diluents). The RFO solution was injected into the air sac on d 12 of incubation. In total 144 birds were fed a standard diet and management and sacrificed at d 21 post hatch for collection of samples. Total RNA was extracted from the small intestine, and RT-qPCR was performed to quantify mRNA levels of marker genes of immune cells. Injection of RFO had no significant effect (P > 0.05) on d one body weight of chicks. On d 21, the relative weight of the proventriculus, drumstick, breast, and gizzard was not affected (P > 0.05) by RFO. On hatch d, the villus height increased linearly (P < 0.01) with an increasing dose of RFO. Also, an increasing dose of RFO increased the villus height and villus height:crypt depth ratio (P < 0.05) but did not affect the crypt depth on d 21. The expression levels of CD3 and chB6, which are T cell and B cell marker genes, respectively, were significantly enhanced by high dose RFO (4.5 mg). In conclusion, although an increasing dose of RFO in ovo injection did not significantly influence growth performance or slaughter yield of broilers, RFO has the potential of enhancing ileum mucosa morphology and improving immunity in the small intestine, which are indicators of improved gut health.
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Gupta A, Singh AK, Faridi K, Jain P. Cefazolin Induced Liver Injury and Hypoprothrombinemia. J Clin Exp Hepatol 2018; 8:213-214. [PMID: 29892188 PMCID: PMC5992318 DOI: 10.1016/j.jceh.2017.12.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Indexed: 12/12/2022] Open
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Kim EY, Sudini K, Singh AK, Haque M, Leaman D, Khuder S, Ahmed S. Ursolic acid facilitates apoptosis in rheumatoid arthritis synovial fibroblasts by inducing SP1-mediated Noxa expression and proteasomal degradation of Mcl-1. FASEB J 2018; 32:fj201800425R. [PMID: 29799788 PMCID: PMC6181629 DOI: 10.1096/fj.201800425r] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Accepted: 05/07/2018] [Indexed: 12/14/2022]
Abstract
Rheumatoid arthritis (RA) is characterized by hyperplastic pannus formation mediated by activated synovial fibroblasts (RASFs) that cause joint destruction. We have shown earlier that RASFs exhibit resistance to apoptosis, primarily as a result of enhanced expression of myeloid cell leukemia-1 (Mcl-1). In this study, we discovered that ursolic acid (UA), a plant-derived pentacyclic triterpenoid, selectively induces B-cell lymphoma 2 homology 3-only protein Noxa in human RASFs. We observed that UA-induced Noxa expression was followed by a consequent decrease in Mcl-1 expression in a dose-dependent manner. Subsequent evaluation of the signaling pathways showed that UA-induced Noxa is primarily mediated by the JNK pathway in human RASFs. Chromatin immunoprecipitation (IP) studies into the promoter region of Noxa indicated the role of transcription factor specificity protein 1 in JNK-mediated Noxa expression. Furthermore, the results from IP studies and proximity ligation assays indicated that UA-induced Noxa colocalizes and associates with Mcl-1 to prime it for proteasomal degradation through K48-linked ubiquitination by the selective recruitment of Mcl-1 ubiquitin ligase E3, a homologous to E6-associated protein C terminus domain-containing E3 ubiquitin ligase. These findings unveil a novel mechanism of inducing apoptosis in RASFs and a potential adjunct therapeutic strategy of regulating synovial hyperplasia in RA.-Kim, E. Y., Sudini, K., Singh, A. K., Haque, M., Leaman, D., Khuder, S., Ahmed, S. Ursolic acid facilitates apoptosis in rheumatoid arthritis synovial fibroblasts by inducing SP1-mediated Noxa expression and proteasomal degradation of Mcl-1.
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Gupta BK, Sahoo KK, Ghosh A, Tripathi AK, Anwar K, Das P, Singh AK, Pareek A, Sopory SK, Singla-Pareek SL. Manipulation of glyoxalase pathway confers tolerance to multiple stresses in rice. PLANT, CELL & ENVIRONMENT 2018; 41:1186-1200. [PMID: 28425127 DOI: 10.1111/pce.12968] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Revised: 04/03/2017] [Accepted: 04/05/2017] [Indexed: 05/05/2023]
Abstract
Crop plants face a multitude of diverse abiotic and biotic stresses in the farmers' fields. Although there now exists a considerable knowledge of the underlying mechanisms of response to individual stresses, the crosstalk between response pathways to various abiotic and biotic stresses remains enigmatic. Here, we investigated if the cytotoxic metabolite methylglyoxal (MG), excess of which is generated as a common consequence of many abiotic and biotic stresses, may serve as a key molecule linking responses to diverse stresses. For this, we generated transgenic rice plants overexpressing the entire two-step glyoxalase pathway for MG detoxification. Through assessment of various morphological, physiological and agronomic parameters, we found that glyoxalase-overexpression imparts tolerance towards abiotic stresses like salinity, drought and heat and also provides resistance towards damage caused by the sheath blight fungus (Rhizoctonia solani) toxin phenylacetic acid. We show that the mechanism of observed tolerance of the glyoxalase-overexpressing plants towards these diverse abiotic and biotic stresses involves improved MG detoxification and reduced oxidative damage leading to better protection of chloroplast and mitochondrial ultrastructure and maintained photosynthetic efficiency under stress conditions. Together, our findings indicate that MG may serve as a key link between abiotic and biotic stress response in plants.
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Gowda A, Sharma V, Goyal A, Singh AK, Arora S. Process optimization and oxidative stability of omega-3 ice cream fortified with flaxseed oil microcapsules. Journal of Food Science and Technology 2018; 55:1705-1715. [PMID: 29666523 DOI: 10.1007/s13197-018-3083-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 09/25/2017] [Accepted: 02/19/2018] [Indexed: 11/30/2022]
Abstract
Microencapsulated flaxseed oil powder (MFOP) was supplemented for the fortification of α-linolenic acid (ALA, ω-3 fatty acid) in ice cream. Processing parameters were optimized in terms of the stage of homogenization of ice-cream mix, level of fortification (3, 4 and 5%) and flavors (vanilla, butter scotch and strawberry). Data revealed that free fatty acids increased significantly during first 15 days in all the samples and then remained constant. Peroxide value and thiobarbituric acid value first increased up to 30 and 45 days, respectively; and then decreased followed by a gradual increase up to 120 days. Fatty acids profile showed 18.74-21.38% decrease in ALA content in fortified ice creams after 120 days. A serving of 100 g of freshly prepared functional ice cream was able to meet ~ 45% of the RDA (1.4 g ALA/day), which reduced to 35.37-36.56% on the end of storage i.e. 120 days. Overall, it can be concluded that MFOP was oxidative stable in ice-cream throughout the storage, which could be fortified successfully at 4% (w/w) level.
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Paul J, Singh AK, Kathania M, Elviche TL, Zeng M, Basrur V, Theiss AL, Venuprasad K. IL-17-driven intestinal fibrosis is inhibited by Itch-mediated ubiquitination of HIC-5. Mucosal Immunol 2018; 11:427-436. [PMID: 28612841 DOI: 10.1038/mi.2017.53] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 05/14/2017] [Indexed: 02/04/2023]
Abstract
Intestinal fibrosis is a major complication in inflammatory bowel diseases, but the regulatory mechanism that inhibits fibrosis remains unclear. Here we demonstrate that Itch-/-myofibroblasts express increased amounts of profibrotic collagen type I and α-SMA in response to IL-17. Mechanistically, we demonstrate that Itch directly binds to HIC-5 and targets it for K63-linked ubiquitination to inhibit IL-17-driven intestinal fibrosis. Reconstitution of Itch-/- myofibroblasts with wild-type Itch but not the Itch-C830A mutant normalized the expression of profibrotic genes. Similarly, shRNA-mediated inhibition of HIC-5 normalized the expression of profibrotic gene expression. Thus, we have uncovered a novel mechanism by which Itch negatively regulates intestinal fibrosis.
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Shahi N, Mallik SK, Sahoo M, Chandra S, Singh AK. First report on characterization and pathogenicity study of emerging Lactococcus garvieae infection in farmed rainbow trout, Oncorhynchus mykiss (Walbaum), from India. Transbound Emerg Dis 2018; 65:1039-1048. [PMID: 29473318 DOI: 10.1111/tbed.12843] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Indexed: 12/20/2022]
Abstract
"Warm water lactococcosis" in farm-reared rainbow trout, Oncorhynchus mykiss (Walbaum) in the northern Himalayan region of India, caused by bacterium Lactococcus garvieae is described in this study. Nine bacterial isolates were recovered from the organs of haemorrhagic septicaemia rainbow trout and were subjected to biochemical and molecular identification. Cell surface characteristics and virulence of the bacterial isolates are also described. All the nine bacterial isolates had homogenous biochemical characteristics and were Gram-positive, short chains forming (two to eight cells long), α-haemolytic, non-motile ovoid cocci. Partial 16S rDNA nucleotide sequence (~1,400 bp) of current isolates shared 99% identities with the 16S rDNA nucleotide sequence of L. garvieae R421, L. garvieae FMA395 and L. garvieae CAU:1730. The identity of the bacterial isolates was further confirmed by PCR amplification of L. garvieae-specific ~1,100 bp fragment. Transmission electron microscopy (TEM) of one representative isolate, L. garvieae RTCLI04, indicates that the isolated strain lacks thick outer capsule and is of KG+ (non-capsulates) phenotype. An intraperitoneal and intramuscular injection (2.6 × 105 CFU ml-1 ) and also immersion in bacterial suspension @ of 2.6 × 105 CFU ml-1 to healthy rainbow trout juveniles (body weight: 27.5 ± 3.7 g) with L. garvieae RTCLI04 caused 80%, 60% and 10% cumulative mortality in challenged fish, respectively, within 15 days post-infection. The haemorrhagic septicaemic disease was reproduced experimentally. Histopathological examination of organs of experimentally infected fish revealed extensive degenerative and inflammatory changes in eye, kidney, gill and liver. PCR amplification of several putative virulence genes such as haemolysins, adhesins, LPxTG-containing surface proteins and adhesins cluster confirms the virulence of our Indian L. garvieae isolates. To the best of our knowledge, we are reporting for the first time that L. garvieae is associated with fatal haemorrhagic septicaemia in farmed rainbow trout in India.
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Kemmanu V, Giliyar SK, Shetty BK, Singh AK, Kumaramanickavel G, McCarty CA. Parental inability to detect eye diseases in children: barriers to access of childhood eye-care services in south India. Eye (Lond) 2018; 32:467-468. [DOI: 10.1038/eye.2017.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Singh AK, Kumar A, Honparkhe M, Kaur S, Kaur H, Ghuman S, Brar PS. Comparison of in vitro and in vivo fertilizing potential of buffalo bull semen frozen in egg yolk-, soya bean lecithin- and liposome-based extenders. Reprod Domest Anim 2018; 53:195-202. [PMID: 29080291 DOI: 10.1111/rda.13092] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 09/12/2017] [Indexed: 01/26/2023]
Abstract
The objective of this study was to compare different extenders for post-thaw in vitro sperm function and in vivo fertility of buffalo semen. Accordingly, sperm of 30 ejaculates extended in egg yolk (TRIS with 20% egg yolk; EY), two soya lecithin-based (SL-1; AndroMed® and SL-2; Bioxcell® ) and a liposome-based extender (LS; OptiXcell® ) were tested. The post-thaw semen was evaluated for computer-assisted sperm analysis (CASA), sperm viability, membrane and acrosome integrity, DNA integrity and acrosome reaction and first service pregnancy rate (FSPR) in a fixed-time artificial insemination programme. Total motility and VCL were the only CASA-based parameters that exhibited significantly higher (p < .05) percentage in LS among these extenders. Post-thaw percentage of acrosome integrity (55.9 ± 1.4, 58.1 ± 2.0, 55.8 ± 2.0, 56.6 ± 2.3) and DNA integrity (68.8 ± 2.0, 69.2 ± 2.3, 71.3 ± 2.1, 69.1 ± 2.1) did not differ (p > .05) in EY, SL-1, SL-2 and LS extender, respectively. However, a variable response in terms of efficacy of different extenders for sperm viability and plasma membrane integrity was observed. Assessment of inducibility of acrosome reaction showed significant differences between extenders (51.9 ± 2.1, 44.3 ± 2.4, 46.1 ± 2.3 and 58.1 ± 3.1%, respectively, for EY, SL-1, SL-2 and LS). Furthermore, field trials revealed significantly higher (p < .05) FSPR of LS-extended semen as compared to that for EY, SL-1 and SL-2 extender (46.3%, 41.2%, 31.2% and 29.7%, respectively). It is concluded that the liposome-based extender is more effective than egg yolk- and soya lecithin-based extenders and may be used for cryopreservation of buffalo semen in the future.
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Singh AK. Service Quality – Customer Satisfaction link: An Empirical Study of Rural Telecom Sector in Gwalior Region. INTERNATIONAL JOURNAL OF MANAGEMENT STUDIES 2018. [DOI: 10.18843/ijms/v5i1(4)/14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Kaushik A, Jaiswal A, Singh AK. Correlation ‘K’ of foot length with crown rump length in fetuses : an anthropometric study from Kumaun region. NATIONAL JOURNAL OF CLINICAL ANATOMY 2018. [DOI: 10.4103/2277-4025.294774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Varenhorst AJ, Pritchard SR, O'Neal ME, Hodgson EW, Singh AK. Determining the Effectiveness of Three-Gene Pyramids Against Aphis glycines (Hemiptera: Aphididae) Biotypes. JOURNAL OF ECONOMIC ENTOMOLOGY 2017; 110:2428-2435. [PMID: 29220517 DOI: 10.1093/jee/tox230] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Since the discovery of Aphis glycines Matsumura (Hemiptera: Aphididae) in the United States, the primary management tactic has been foliar insecticides. Alternative management options such as host plant resistance to A. glycines have been developed and their effectiveness proved. However, the use of host plant resistance was complicated by the discovery of multiple, virulent biotypes of A. glycines in the United States that are capable of overcoming single Rag genes, Rag1 and Rag2, as well as a two-gene pyramid of Rag1+Rag2. However, current models predict that the virulent allele frequency of A. glycines decreases in response to the use of pyramided Rag genes, suggesting that pyramids represent a more sustainable use of these traits. Previous research has demonstrated that virulent biotypes can be effectively managed using a three-gene pyramid of Rag1+Rag2+Rag3. Additional Rag-genes have been discovered (Rag4 and Rag5), but whether the incorporation of these genes into novel three-gene pyramids will improve efficacy is not known. We tested single-gene (Rag1 and Rag2) and pyramid cultivars (Rag1+Rag2, Rag1+Rag2+Rag3, Rag1+Rag2+Rag4) to multiple biotypes in laboratory assays. Our results confirm that the Rag1+Rag2+Rag3 pyramid effectively manages all known A. glycines biotypes when compared with cultivars that are overcome by the associated biotype. Our results indicate that Rag1+Rag2+Rag4 would be an effective management option for biotype-1, biotype-2, and biotype-3 A. glycines, but had a negligible impact on biotype-4.
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Balhara YPS, Kalra S, Bajaj S, Kuppili PP, Himanshu D, Atam V, Usman K, Singh V, Chaudhary SC, Chakravorty S, Wakhlu A, Fatma J, Tandon S, Maheshwari A, Gupta A, Parvez A, Chakravarty J, Chaudhary RR, Singh AK, Sawlani KK, Mathur M, Soni NK, Gupta OK, Rai M, Agarwal S. Uttar Pradesh Association of Physicians of India Position Statement: Tobacco Use and Metabolic Syndrome. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 2017; 65:66-72. [PMID: 29327524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Tobacco use is one of the main preventable causes of mortality and morbidity worldwide. The global disease burden due to tobacco use is huge with projected mortality of eight million lives per year by 2030. Metabolic syndrome (MS) is defined as a constellation of cardiovascular and endocrine risk factors such as insulin resistance, obesity, raised blood pressure, and abnormal lipid profile. The relationship between tobacco use and MS has been well established. Also, the causal association between tobacco use and development of individual components of MS is well established. The Uttar Pradesh Association of Physicians of India (UP API) has drafted this position statement on managing tobacco use among persons with or at risk of developing Metabolic Syndrome (MS). This position statement presents evidence-based recommendations as described below. Scope and purpose The objective of this position statement is to offer clinical recommendations for screening, diagnosis and management of tobacco use among persons with or at risk of developing Metabolic Syndrome (MS). The purpose of this document is to aid in identification and treatment of maladaptive patterns of tobacco use i.e. tobacco use disorder (tobacco dependence, harmful use, abuse) in person with or at risk of developing MS. Intended Audience The position statement is targeted at the clinicians engaged in care and management of person with or at risk of developing Metabolic Syndrome (MS). This might also be of relevance to the policy makers considering the public health burden of both MS and tobacco use disorders.
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Paul JT, Singh AK, Dong Z, Zhuang H, Revard BC, Rijal B, Ashton M, Linscheid A, Blonsky M, Gluhovic D, Guo J, Hennig RG. Computational methods for 2D materials: discovery, property characterization, and application design. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2017; 29:473001. [PMID: 29022886 DOI: 10.1088/1361-648x/aa9305] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The discovery of two-dimensional (2D) materials comes at a time when computational methods are mature and can predict novel 2D materials, characterize their properties, and guide the design of 2D materials for applications. This article reviews the recent progress in computational approaches for 2D materials research. We discuss the computational techniques and provide an overview of the ongoing research in the field. We begin with an overview of known 2D materials, common computational methods, and available cyber infrastructures. We then move onto the discovery of novel 2D materials, discussing the stability criteria for 2D materials, computational methods for structure prediction, and interactions of monolayers with electrochemical and gaseous environments. Next, we describe the computational characterization of the 2D materials' electronic, optical, magnetic, and superconducting properties and the response of the properties under applied mechanical strain and electrical fields. From there, we move on to discuss the structure and properties of defects in 2D materials, and describe methods for 2D materials device simulations. We conclude by providing an outlook on the needs and challenges for future developments in the field of computational research for 2D materials.
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Or-Geva N, Gidron-Budovsky R, Radomir L, Edelstein Y, Singh AK, Sidlik-Muskatel R, Ophir E, Bachar-Lustig E, Reisner Y. Towards 'off-the-shelf' genetically modified T cells: prolonging functional engraftment in mice by CD8 veto T cells. Leukemia 2017; 32:1039-1041. [PMID: 29151584 DOI: 10.1038/leu.2017.332] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Jagetia A, Singh D, Srivastava AK, Singh AK. The Department of Neurosurgery, G. B. Pant Hospital, New Delhi. Neurol India 2017; 65:1366-1377. [PMID: 29133716 DOI: 10.4103/0028-3886.217980] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
The history of the prestigious Department of Neurosurgery, Gobind Ballabh Pant Institute of Medical Education Institute and Research, New Delhi, a leading tertiary care centre, is presented. Its eminent faculty and outstanding patient care attracts patients and students from all over the country.The patients opt for this institution to get a standard of care that may be comparable with the highest standards prevalent; and, the students achieve their goal of getting excellent education in Neurosurgery at par with the best institutes of the world. The department has, therefore, over the years, established its place in the country as a premier training facility and an epitome of medical excellence.
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Swain DK, Narzary A, Singh AK, Chandra A, Nagasawa T, Yamamoto S, Mitsuishi M, Rath S. Observation of self-polarization in BSA protected Au 20 clusters. NANOTECHNOLOGY 2017; 28:445704. [PMID: 28820424 DOI: 10.1088/1361-6528/aa8718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Bovine serum albumin (BSA)-protected gold clusters (atomicity ∼ 20), prepared using a wet chemical route, show strong dipolar radiative transition with a gap energy of 1.93 eV due to the high oscillator strength, as confirmed by the emission studies. Self-arrangement of the clusters with fixed atomicity yields a low dispersive dielectric and electric self-polarization nature. The electrical hysteresis loop measurements returned a remanent polarization of 0.05 μC cm-2, which can be correlated with the dipolar orientation (activation energy ∼ 45.32 meV), originating from the structure-dependent deformation of the charge density.
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Singh AK, Fulton Z, Tiwari R, Zhang X, Lu L, Altmeyer WB, Tantiwongkosi B. Basion-Cartilaginous Dens Interval: An Imaging Parameter for Craniovertebral Junction Assessment in Children. AJNR Am J Neuroradiol 2017; 38:2380-2384. [PMID: 28982790 DOI: 10.3174/ajnr.a5400] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 08/03/2017] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Widening of the basion-dens interval is an important sign of cranioverterbral junction injury. The current literature on basion-dens interval in children is sparse and based on bony measurements with variable values. Our goal was to establish the normal values of a recently described new imaging parameter, the basion-cartilaginous dens interval in children. MATERIALS AND METHODS Three hundred healthy pediatric patients (0-10 years of age) were selected retrospectively. These patients were divided into 3 different groups: A (0-3 years), B (3-6 years), and C (6-10 years). The basion-cartilaginous dens interval was calculated on the sagittal MPR image of cervical spine CT in a soft-tissue window. The mean, SD, and the upper limit of normal (mean +2 SDs) of the 3 groups were calculated, and statistical tests were used to check for significant differences of the basion-cartilaginous dens interval among these 3 groups. RESULTS The upper limits of the basion-cartilaginous dens interval for the 3 groups were 5.34 mm in group A, 5.64 mm in group B, and 7.24 mm in group C. There were statistically significant differences in the basion-cartilaginous dens interval values among the 3 groups. There was no statistically significant difference in basion-cartilaginous dens interval values between groups A and B; however, values in group C were significantly different from those in both A and B. There was no statistically significant difference in the basion-cartilaginous dens interval values between males and females. CONCLUSIONS The basion-cartilaginous dens interval is a novel imaging parameter to assess cranioverterbral junction integrity in children, which includes the nonossified cartilage in the measurement.
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Singh A, Singh AK. Haloarchaea: worth exploring for their biotechnological potential. Biotechnol Lett 2017; 39:1793-1800. [PMID: 28900776 DOI: 10.1007/s10529-017-2434-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 09/07/2017] [Indexed: 12/14/2022]
Abstract
Halophilic archaea are unique microorganisms adapted to survive under high salt conditions and biomolecules produced by them may possess unusual properties. Haloarchaeal metabolites are stable at high salt and temperature conditions that are useful for industrial applications. Proteins and enzymes of this group of archaea are functional under salt concentrations at which bacterial counterparts fail to be active. Such properties makes haloarchaeal enzymes suitable for salt-based applications and their use under dehydrating conditions. For example, bacteriorhodopsin or the purple membrane protein present in halophilic archaea has the most recognizable applications in photoelectric devices, artificial retinas, holograms etc. Haloarchaea are also useful for bioremediation of polluted hypersaline areas. Polyhydroxyalkanoates and exopolysccharides produced by these microorganisms are biodegradable and have the potential to replace commercial non-degradable plastics and polymers. Moreover, halophilic archaea have excellent potential to be used as drug delivery systems and for nanobiotechnology by virtue of their gas vesicles and S-layer glycoproteins. Despite of possible applications of halophilic archaea, laboratory-to-industrial transition of these potential candidates is yet to be established.
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Trehan V, Rao PP, Naidu CS, Sharma AK, Singh AK, Sharma S, Gaur A, Kulkarni SV, Pathak N. Hydrogen peroxide test for intraoperative bile leak detection. Med J Armed Forces India 2017; 73:256-260. [PMID: 28790783 DOI: 10.1016/j.mjafi.2017.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 01/03/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Bile leakage (BL) is a common complication following liver surgery, ranging from 3 to 27% in different series. To reduce the incidence of post-operative BL various BL tests have been applied since ages, but no method is foolproof and every method has their own limitations. In this study we used a relatively simpler technique to detect the BL intra-operatively. Topical application of 1.5% diluted hydrogen peroxide (H2O2) was used to detect the BL from cut surface of liver and we compared this with conventional saline method to know the efficacy. METHODS A total of 31 patients included all patients who underwent liver resection and donor hepatectomies as part of Living Donor Liver Transplantation. After complete liver resection, the conventional saline test followed by topical diluted 1.5% H2O2 test was performed on all. RESULTS A BL was demonstrated in 11 patients (35.48%) by the conventional saline method and in 19 patients (61.29%) by H2O2 method. Statistically compared by Wilcoxon signed-rank test showed significant difference (P = 0.014) for minor liver resections group and (P = 0.002) for major liver resections group. CONCLUSION The topical application of H2O2 is a simple and effective method of detection of BL from cut surface of liver. It is an easy, non-invasive, cheap, less time consuming, reproducible, and sensitive technique with no obvious disadvantages.
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Sversut RA, Alcântara IC, Rosa AM, Baroni AC, Rodrigues PO, Singh AK, Amaral MS, Kassab NM. Simultaneous determination of gatifloxacin and prednisolone acetate in ophthalmic formulation using first-order UV derivative spectroscopy. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2014.11.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Suhag V, Sunita BS, Vats P, Sarin A, Singh AK, Jain M. Clinical Profile of Pediatric Oncology Patients Treated by External Beam Radiotherapy: An Institutional Experience. Indian J Med Paediatr Oncol 2017; 38:28-32. [PMID: 28469334 PMCID: PMC5398103 DOI: 10.4103/0971-5851.203497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Introduction: Pediatric tumors are a heterogeneous group of malignant conditions requiring multimodal treatment, and management of such cases is at time challenging. We present the clinical profile of pediatric cancer patients who received radiation, either alone or as adjuvant to surgery and chemotherapy; in prophylactic, radical or palliative clinical setting. Aim: This study was envisaged to review our experience of pediatric oncology cases, their clinical and morphological profile, dosage schedule of radiotherapy, and the therapy induced complications. Settings and Design: This was a retrospective, observational study carried out in an apex tertiary care cancer institute of government set-up in a developing country. Materials and Methods: The treatment charts and clinical summary of patients who had received radiation over the last 5 years period were retrieved and perused. Various clinical and pathological parameters were studied and inferences drawn. Results: A total of 50 patients got radiation over 5 year study-period, including 37 male and 13 female patients. The commonest age group of presentation was 8-12 years followed by 13-16 years. The mean age of presentation was 9.3 years. The most common diagnosis was hematological malignancies followed by CNS tumors with 21 and 13 patients respectively. Overall the most common indication of RT was in adjuvant setting after surgery as the definitive management, where 24 patients were irradiated; and the next common indication was prophylactic cranial irradiation in 14 patients of childhood leukemias. 10 patients tolerated treatment with Grade 1 site-specific or systemic toxicities while 7 patients developed Grade 2 and more systemic toxicities. 9 patients received craniospinal irradiation, common indications being medulloblastoma and Atypical teratoma rhabdoid tumor (ATRT). 3 patients received concurrent chemotherapy with weekly Inj Vincristine. 17 patients required sedation or short general anaesthesia for radiation planning and execution. Conclusion: External beam Radiotherapy constitutes an important component of management of pediatric cancers. One should be judicious in Radiotherapy planning, execution and monitoring acute and delayed toxicities.
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Kovil R, Chawla M, Rajput R, Singh AK, Sinha B, Ghosal S, Ballani P, Gupta S, Tanna S, Bandukwala SM, Shah T, Negalur V, Bhoraskar A, Aravind SR, Zargar AH, Kesavadev J, Das AK. Consensus on Insulin Dose and Titration Algorithms in Ambulatory Care of Type 2 Diabetes in India. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 2017; 65:17-30. [PMID: 28457028 DOI: pmid/28457028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INSTRUCTION Insulin is the oldest of the currently available treatment options in Type 2 diabetes mellitus (T2DM) and is considered as the most effective glucose lowering agent. Despite this, decision on starting insulin therapy is often delayed in India as well as worldwide due to various barriers at both patient and physician levels. Appropriate insulin dosing and titration is also critical to the successful achievement of tight glycaemic control. OBJECTIVE To provide simple and easily implementable guidelines to primary care physicians on appropriate insulin dosing and titration of various insulin regimens for both initiation and intensification. METHODOLOGY Each insulin regimen (once daily [OD] basal, OD, twice daily and thrice daily premixed, basal-plus and basal-bolus) was presented and evaluated for dosing and titration based on established guidelines, data from approved pack inserts, and published scientific literature. These evaluations were then factored into the national context based on the expert committee representatives patient-physician experience in their clinical practice and common therapeutic practices followed in India. RESULTS Recommendations for dosing and titration of basal, basal-plus, premixed and basal-bolus insulins were developed. The key recommendations are that insulin doses can be adjusted once or twice weekly; adjustment can be based on lowest/mean of three recent self-monitoring of plasma glucose pre-meal/fasting plasma glucose (FPG) values. The titration should be based on FPG or pre-meal value of 80-130 mg/dL and the dose should be reduced by 10-20% for patients reporting hypoglycaemia(<70mg/dL). CONCLUSIONS The consensus based recommendations mentioned in this paper will be a useful reference tool for health care practitioners, to initiate, optimise and intensify insulin therapy and to successfully achieve optimal glucose control.
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