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Challa A, Maras JS, Nagpal S, Tripathi G, Taneja B, Kachhawa G, Sood S, Dhawan B, Acharya P, Upadhyay AD, Yadav M, Sharma R, Bajpai M, Gupta S. Multi-omics analysis identifies potential microbial and metabolite diagnostic biomarkers of bacterial vaginosis. J Eur Acad Dermatol Venereol 2024; 38:1152-1165. [PMID: 38284174 DOI: 10.1111/jdv.19805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 11/06/2023] [Indexed: 01/30/2024]
Abstract
BACKGROUND Bacterial vaginosis (BV) is a common clinical manifestation of a perturbed vaginal ecology associated with adverse sexual and reproductive health outcomes if left untreated. The existing diagnostic modalities are either cumbersome or require skilled expertise, warranting alternate tests. Application of machine-learning tools to heterogeneous and high-dimensional multi-omics datasets finds promising potential in data integration and may aid biomarker discovery. OBJECTIVES The present study aimed to evaluate the potential of the microbiome and metabolome-derived biomarkers in BV diagnosis. Interpretable machine-learning algorithms were used to evaluate the utility of an integrated-omics-derived classification model. METHODS Vaginal samples obtained from reproductive-age group women with (n = 40) and without BV (n = 40) were subjected to 16S rRNA amplicon sequencing and LC-MS-based metabolomics. The vaginal microbiome and metabolome were characterized, and machine-learning analysis was performed to build a classification model using biomarkers with the highest diagnostic accuracy. RESULTS Microbiome-based diagnostic model exhibited a ROC-AUC (10-fold CV) of 0.84 ± 0.21 and accuracy of 0.79 ± 0.18, and important features were Aerococcus spp., Mycoplasma hominis, Sneathia spp., Lactobacillus spp., Prevotella spp., Gardnerella spp. and Fannyhessea vaginae. The metabolome-derived model displayed superior performance with a ROC-AUC of 0.97 ± 0.07 and an accuracy of 0.92 ± 0.08. Beta-leucine, methylimidazole acetaldehyde, dimethylethanolamine, L-arginine and beta cortol were among key predictive metabolites for BV. A predictive model combining both microbial and metabolite features exhibited a high ROC-AUC of 0.97 ± 0.07 and accuracy of 0.94 ± 0.08 with diagnostic performance only slightly superior to the metabolite-based model. CONCLUSION Application of machine-learning tools to multi-omics datasets aid biomarker discovery with high predictive performance. Metabolome-derived classification models were observed to have superior diagnostic performance in predicting BV than microbiome-based biomarkers.
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Affiliation(s)
- A Challa
- Department of Dermatology and Venereology, All India Institute of Medical Sciences, New Delhi, India
| | - J S Maras
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - S Nagpal
- TCS Research, Tata Consultancy Services Ltd, Pune, India
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - G Tripathi
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - B Taneja
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - G Kachhawa
- Department of Obstetrics and Gynaecology, All India Institute of Medical Sciences, New Delhi, India
| | - S Sood
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - B Dhawan
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - P Acharya
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - A D Upadhyay
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - M Yadav
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - R Sharma
- CSIR-Institute of Genomics and Integrative Biology, New Delhi, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - M Bajpai
- Department of Transfusion Medicine, Institute of Liver and Biliary Sciences, New Delhi, India
| | - S Gupta
- Department of Dermatology and Venereology, All India Institute of Medical Sciences, New Delhi, India
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Uppin V, Zarei M, Acharya P, Nair D, Kempaiah B, Talahalli R. Zerumbone exhibits anti-inflammatory effects by suppressing eicosanoid signaling: Evidence from LPS-induced peripheral blood leukocytes. Prostaglandins Other Lipid Mediat 2024; 173:106852. [PMID: 38761959 DOI: 10.1016/j.prostaglandins.2024.106852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 05/13/2024] [Accepted: 05/15/2024] [Indexed: 05/20/2024]
Abstract
Zerumbone, a sesquiterpene isolated from Zingiber zerumbet, has many bioactivities, exhibiting anti-inflammatory properties. However, the effect of zerumbone on the eicosanoid signaling pathway has yet to be examined. Here, we deciphered the anti-eicosanoid properties of zerumbone isolated from ginger. The molecular interaction between zerumbone and eicosanoid metabolizing enzymes (COX-2, 5-LOX, FLAP, and LTA4-hydrolase) and receptors (EP-4, BLT-1, and ICAM-1) along with NOS-2 were assessed using Auto-Dock 4.2 and visualized by chimera and Liggplot+ software. Further, the leukocytes were treated with zerumbone (1-20 μM) and activated using bacterial lipopolysaccharide (LPS-10 nM). The oxidative stress (OS) markers, antioxidant enzymes, and the eicosanoid pathway mediators such as COX-2, 5-LOX, BLT-1, and EP-4 were assessed. The molecular interaction of zerumbone with eicosanoids showed a higher binding affinity with mPGES-1, followed by NOS-2, FLAP, COX-2, LTA-4-hydrolase, and BLT-1. The concentration of 5 μM zerumbone effectively prevented the generation of reactive oxygen species (ROS) and nitric oxide (NO). Likewise, zerumbone significantly (p<0.05) inhibited COX-2, 5-LOX, NOS-2, EP-4, BLT-1, and ICAM-1 expression in LPS-induced peripheral blood leukocytes from rats. Further, the zerumbone treatment on the human PBMCs activated with LPS showed significant inhibition in the expression of ICAM1, COX-2, 5-LOX, and the generation of inflammatory cytokines compared to the control. Overall, the data presented infers that zerumbone positively modulates critical enzymes and receptors of eicosanoids in leukocytes activated with lipopolysaccharides. Thus, zerumbone can be a potential anti-eicosanoid drug in managing inflammation.
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Affiliation(s)
- Vinayak Uppin
- Dept. of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka 570020, India
| | - Mehrdad Zarei
- Dept. of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka 570020, India
| | - Pooja Acharya
- Dept. of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka 570020, India
| | - Devika Nair
- Dept. of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka 570020, India
| | - Bettadaiah Kempaiah
- Dept. of Spices and Flavor Sciences, CSIR-Central Food Technological Research Institute, Mysore, Karnataka 570020, India
| | - Ramaprasad Talahalli
- Dept. of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka 570020, India.
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Pal P, Bhatta R, Bhattarai R, Acharya P, Singh S, Harries AD. Antimicrobial resistance in bacteria isolated from the poultry production system in Nepal. Public Health Action 2022; 12:165-170. [PMID: 36561909 PMCID: PMC9716825 DOI: 10.5588/pha.22.0014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 08/26/2022] [Indexed: 12/03/2022] Open
Abstract
SETTING Twenty poultry farms in five provinces of Nepal were selected for studying bacterial pathogens and their antimicrobial resistance (AMR) patterns. OBJECTIVE To document the proportion of cloacal swabs collected from 3,230 broiler and 3,230 layer chickens from September to December 2021 that grew isolates of Escherichia coli, Enterococcus spp. and Salmonella spp. along with their AMR patterns. DESIGN This was a cross-sectional descriptive study. RESULTS In broiler birds, Enterococcus spp., Salmonella spp. and E. coli were identified in respectively 36%, 39% and 63% of swabs. In layer birds, Enterococcus spp., Salmonella spp. and E. coli were identified in respectively 31%, 48% and 60% of swabs. For both bird types, there was variation in bacterial prevalence between the regions. For all three bacterial isolates, the lowest antimicrobial resistance was found with amikacin. For the other nine antibiotics tested, >50% of bacterial isolates showed resistance; between 60% and 90% of isolates showed resistance to ciprofloxacin and trimethoprim-sulfamethoxazole. Multidrug resistance ranged from 45% to 46% for Salmonella spp., 37-44% for E. coli and 13-17% for Enterococcus spp. CONCLUSION This study shows that a large proportion of poultry in Nepal are infected with potentially pathogenic bacteria, and these are frequently resistant to commonly used antibiotics. Nepal urgently needs to implement corrective measures.
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Affiliation(s)
- P. Pal
- Agriculture and Forestry University, Chitwan, Nepal
| | - R. Bhatta
- Agriculture and Forestry University, Chitwan, Nepal
| | - R. Bhattarai
- Agriculture and Forestry University, Chitwan, Nepal
| | - P. Acharya
- Agriculture and Forestry University, Chitwan, Nepal
| | - S. Singh
- Agriculture and Forestry University, Chitwan, Nepal
| | - A. D. Harries
- International Union Against Tuberculosis and Lung Disease, Paris, France
, London School of Hygiene & Tropical Medicine, London, UK
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Bagher-Ebadian H, Nagaraja T, Cabral G, Farmer K, Valadie O, Acharya P, Movsas B, Brown S, Chetty I, Ewing J. An Unsupervised Autoencoder Developed from Dynamic Contrast-Enhanced (DCE)-MRI Datasets for Classification of Acute Tumor Response in an Animal Model. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Birnbaum R, Barzilay R, Brusilov M, Acharya P, Malinger G, Krajden Haratz K. Early second-trimester three-dimensional transvaginal neurosonography of fetal midbrain and hindbrain: normative data and technical aspects. Ultrasound Obstet Gynecol 2022; 59:317-324. [PMID: 34002885 DOI: 10.1002/uog.23691] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 04/11/2021] [Accepted: 05/09/2021] [Indexed: 06/12/2023]
Abstract
OBJECTIVES To provide a detailed description of the sonographic appearance and development of various fetal structures of the midbrain and hindbrain (MBHB) during the early second trimester, and to evaluate the impact of the frequency of the transvaginal sonography (TVS) transducer on the early recognition of these structures. METHODS This was a retrospective analysis of three-dimensional volumetric datasets of the MBHB from apparently normal fetuses at 14-19 gestational weeks, acquired by TVS in the midsagittal view through the posterior fontanelle. Using a multiplanar approach, we measured the tectal thickness and length, aqueductal thickness, tegmental thickness and width and height of the Blake's pouch (BP) neck. In addition, we assessed the existence of early vermian fissures, the linear shape of the brainstem and the components of the fastigium. The correlation between gestational age according to last menstrual period and sonographic measurements of MBHB structures was evaluated using Pearson's correlation (r). A subanalysis was performed to assess the performance of a 5-9-MHz vs a 6-12-MHz TVS transducer in visualizing the MBHB structures in the early second trimester. RESULTS Sixty brain volumes were included in the study, obtained at a mean gestational age of 16.2 weeks (range, 14.1-19.0 weeks), with a transverse cerebellar diameter range of 13.0-19.8 mm. We found a strong correlation between gestational age and all MBHB measurements, with the exception of the tectal, tegmental and aqueductal thicknesses, for which the correlation was moderate. There was good-to-excellent intraobserver and moderate-to-good interobserver correlation for most MBHB measurements. We observed that the BP neck was patent in all fetuses between 14 and 18 weeks with decreasing diameter, and that the aqueductal thickness was significantly smaller at ≥ 18 weeks compared with at < 16 weeks. The early vermian fissures and the linear shape of the brainstem were present in all fetuses from 14 weeks. We found that, in the early second trimester, the horizontal arm of the presumed 'fastigium' evolves from the fourth ventricular choroid plexus and not the posterior vermis, indicating that this is not the fastigium. Standard- and high-resolution TVS transducers performed similarly in the assessment of MBHB anatomy. CONCLUSION Detailed early second-trimester assessment of the MBHB is feasible by transvaginal neurosonography and provides reference data which may help in the early detection of brain pathology involving the MBHB. © 2021 International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- R Birnbaum
- Ob-Gyn Ultrasound Unit, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - R Barzilay
- Lifespan Brain Institute, Penn Medicine and Children's Hospital of Philadelphia (CHOP), Philadelphia, PA, USA
| | - M Brusilov
- Ob-Gyn Ultrasound Unit, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - P Acharya
- Paras Advanced Center for Fetal Medicine, Ahmedabad, India
| | - G Malinger
- Ob-Gyn Ultrasound Unit, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - K Krajden Haratz
- Ob-Gyn Ultrasound Unit, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Ebihara L, Acharya P, Tong JJ. Mechanical Stress Modulates Calcium-Activated-Chloride Currents in Differentiating Lens Cells. Front Physiol 2022; 13:814651. [PMID: 35173630 PMCID: PMC8842795 DOI: 10.3389/fphys.2022.814651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 01/06/2022] [Indexed: 11/13/2022] Open
Abstract
During accommodation, the lens changes focus by altering its shape following contraction and relaxation of the ciliary muscle. At the cellular level, these changes in shape may be accompanied by fluid flow in and out of individual lens cells. We tested the hypothesis that some of this flow might be directly modulated by pressure-activated channels. In particular, we used the whole cell patch clamp technique to test whether calcium-activated-chloride channels (CaCCs) expressed in differentiating lens cells are activated by mechanical stimulation. Our results show that mechanical stress, produced by focally perfusing the lens cell at a constant rate, caused a significant increase in a chloride current that could be fully reversed by stopping perfusion. The time course of activation and recovery from activation of the flow-induced current occurred rapidly over a time frame similar to that of accommodation. The flow-induced current could be inhibited by the TMEM16A specific CaCC blocker, Ani9, suggesting that the affected current was predominantly due to TMEM16A chloride channels. The mechanism of action of mechanical stress did not appear to involve calcium influx through other mechanosensitive ion channels since removal of calcium from the bath solution failed to block the flow-induced chloride current. In conclusion, our results suggest that CaCCs in the lens can be rapidly and reversibly modulated by mechanical stress, consistent with their participation in regulation of volume in this organ.
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Affiliation(s)
- Lisa Ebihara
- Center of Proteomics and Molecular Therapeutics, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States
- Discipline of Physiology and Biophysics, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States
- *Correspondence: Lisa Ebihara,
| | - Pooja Acharya
- Center of Proteomics and Molecular Therapeutics, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States
| | - Jun-Jie Tong
- Center of Proteomics and Molecular Therapeutics, Rosalind Franklin University of Medicine and Science, North Chicago, IL, United States
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Venugopal A, Acharya P, Kishore MS. Extensive intracranial calcification in idiopathic hypoparathyroidism : Rare presentation in an adolescent. Indian J Radiol Imaging 2021. [DOI: 10.4103/0971-3026.29083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- A Venugopal
- Department of Radodiagnosis, City hospital & Kasturba Medical Colllege, Mangalore-1, Karnataka, INDIA
| | - P Acharya
- Department of Radodiagnosis, City hospital & Kasturba Medical Colllege, Mangalore-1, Karnataka, INDIA
| | - M S Kishore
- Department of Radodiagnosis, City hospital & Kasturba Medical Colllege, Mangalore-1, Karnataka, INDIA
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Zarei M, Acharya P, Talahalli RR. Ginger and turmeric lipid-solubles attenuate heated oil-induced cardio-hepatic oxidative stress via the up-regulation of nuclear factor erythroid 2-related factor 2 and decrease blood pressure in rats. Br J Nutr 2021; 126:199-207. [PMID: 33028437 DOI: 10.1017/s0007114520003967] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Deep-fried vegetable oils are reused multiple times to save costs, and their chronic consumption may cause organ dysfunction. In this study, we assessed the modulatory effects of lipid-solubles from ginger and turmeric that may migrate to oils during heating, on the cardio-hepatic antioxidant defence response and blood pressure in rats. Male Wistar rats were fed with: (1) control (native rapeseed (N-CNO) or native sunflower (N-SFO)) oil, (2) heated (heated rapeseed (H-CNO) or heated sunflower (H-SFO)) oil and (3) heated oil with ginger or turmeric (heated rapeseed oil with ginger (H-CNO + GI) or heated rapeseed oil with turmeric (H-CNO + TU), heated sunflower oil with ginger (H-SFO + GI) or heated sunflower oil with turmeric (H-SFO + TU)) for 120 d. Oxidative stress (OS) markers, antioxidant enzymes, nitric oxide synthase-2 (NOS-2), intercellular adhesion molecule-1 (ICAM-1), nuclear factor erythroid 2-related factor 2 (NRF-2), markers of hepatic and cardiac function and blood pressure were assessed. Feeding heated oils (H-CNO or H-SFO) (1) increased OS markers, NOS-2 and ICAM-1 expression; (2) decreased antioxidant enzyme activity and NRF-2 level; (3) increased marker enzymes of hepatic and cardiac function and (4) increased systolic and diastolic blood pressure significantly (P < 0·05), when compared with respective native oils (N-CNO or N-SFO). However, feeding oils heated with ginger or turmeric positively countered the changes induced by heated oils. Consumption of repeatedly heated oil causes cardio-hepatic dysfunction by inducing OS through NRF-2 down-regulation. Lipid-solubles from ginger and turmeric that may migrate to oil during heating prevent the oxidative stress and blood pressure triggered by heated oils in rats.
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Affiliation(s)
- Mehrdad Zarei
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka570020, India
| | - Pooja Acharya
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka570020, India
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Acharya P, Black M, Amengual J. Development and Validation of a Method to Deliver Vitamin A in Cell Culture. Curr Dev Nutr 2021. [DOI: 10.1093/cdn/nzab048_001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Objectives
To develop a method by which vitamin A is delivered to cultured eukaryotic cells
Methods
The multifaceted role of vitamin A in numerous physiological processes critical to energy metabolism, growth and development is well established. There is epidemiological evidence linking vitamin A levels to a reduced risk of metabolic diseases, suggesting that it plays a vital role at the cellular level. Our strategy was based on reports that retinoid uptake in adipocytes occurs possibly by the hydrolytic actions of lipoprotein lipase on retinyl esters and that retinyl esters are the predominant form in which Vitamin A is stored in hepatic stellate cells. Our preliminary studies show that cultured cells do not take up significant amounts of free retinol delivered in DMSO. To determine whether cells take up vitamin A when present in lipoproteins, we gavaged mice with 300 mg/kg of retinyl esters. Mice were sacrificed four hours later.
Results
HPLC analyses showed that the predominant form of vitamin A in serum was retinyl esters and that this concentration reached approximately 8 μM. We used this plasma to treat cells and observed a significant increase in intracellular vitamin A stores.
Conclusions
In conclusion, this study demonstrated that, vitamin A enriched serum treatment of eukaryotic cells, but not otherwise, increase their vitamin A load, and offer vitamin A packed cells for therapeutic applications. Further experiments are being performed to optimize the process, which has potential applications in furthering disease research on vitamin A in cell culture models.
Funding Sources
National Institutes of Health (NIH).
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Muduli PR, Kumar A, Kanuri VV, Mishra DR, Acharya P, Saha R, Biswas MK, Vidyarthi AK, Sudhakar A. Water quality assessment of the Ganges River during COVID-19 lockdown. Int J Environ Sci Technol (Tehran) 2021; 18:1645-1652. [PMID: 33758592 PMCID: PMC7970803 DOI: 10.1007/s13762-021-03245-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 01/07/2021] [Accepted: 02/25/2021] [Indexed: 05/24/2023]
Abstract
Ganges River water quality was assessed to record the changes due to the nation-wide pandemic lockdown. Satellite-based (Sentinel-2) water quality analysis before and during lockdown was performed for seven selected locations spread across the entire stretch of the Ganges (Rishikesh-Dimond Harbour). Results revealed that due to the lockdown, the water quality of the Ganges improved with reference to specific water quality parameters, but the improvements were region specific. Along the entire stretch of Ganges, only the Haridwar site showed improvement to an extent of being potable as per the threshold set by the Central Pollution Control Board, New Delhi, India. A 55% decline in turbidity at that site during the lockdown was attributed to the abrupt halt in pilgrimage activities. Absorption by chromophoric dissolved organic matter which is an indicator of organic pollution declined all along the Ganges stretch with a maximum decline at the downstream location of Diamond Harbour. Restricted discharge of industrial effluent, urban pollution, sewage from hotels, lodges, and spiritual dwellings along the Ganges are some of the reasons behind such declines. No significant change in the geographic trend of chlorophyll-a was observed. The findings of this study highlight the importance of regular monitoring of the changes in the Ganges water quality using Sentinel-2 data to further isolate the anthropogenic impact, as India continues the phase-wise opening amidst the pandemic.
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Affiliation(s)
- P. R. Muduli
- Wetland Research and Training Centre, Chilika Development Authority, Balugaon, 752030 India
| | - A. Kumar
- Department of Geography, University of Georgia, Athens, GA 30602 USA
| | - V. V. Kanuri
- Eastern Regional Directorate (ERD), Ministry of Environment, Forest and Climate Change, National Ganga River Basin Authority, Central Pollution Control Board, 5th and 6th floor, Southend conclave, Rajdanga Main Road, Kolkata, West Bengal 700107 India
| | - D. R. Mishra
- Department of Geography, University of Georgia, Athens, GA 30602 USA
| | - P. Acharya
- Wetland Research and Training Centre, Chilika Development Authority, Balugaon, 752030 India
| | - R. Saha
- Eastern Regional Directorate (ERD), Ministry of Environment, Forest and Climate Change, National Ganga River Basin Authority, Central Pollution Control Board, 5th and 6th floor, Southend conclave, Rajdanga Main Road, Kolkata, West Bengal 700107 India
| | - M. K. Biswas
- Eastern Regional Directorate (ERD), Ministry of Environment, Forest and Climate Change, National Ganga River Basin Authority, Central Pollution Control Board, 5th and 6th floor, Southend conclave, Rajdanga Main Road, Kolkata, West Bengal 700107 India
| | - A. K. Vidyarthi
- Central Pollution Control Board, Ministry of Environment, Forest and Climate Change, New Delhi, India
| | - A. Sudhakar
- Central Pollution Control Board, Ministry of Environment, Forest and Climate Change, New Delhi, India
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Zarei M, Uppin V, Acharya P, Talahalli R. Ginger and turmeric lipid-solubles attenuate heated oil-induced oxidative stress in the brain via the upregulation of NRF2 and improve cognitive function in rats. Metab Brain Dis 2021; 36:225-238. [PMID: 33170419 DOI: 10.1007/s11011-020-00642-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 11/03/2020] [Indexed: 01/20/2023]
Abstract
In this study, we elucidated the modulatory potentials of lipid-solubles from ginger and turmeric that may migrate to oils during heating on the brain antioxidant defense and cognitive response in rats. Male Wistar rats were fed with control diet [including native canola oil (N-CNO), and native sunflower oil (N-SFO)], or experimental diets [including heated canola oil (H-CNO), heated sunflower oil (H-SFO), heated canola oil with ginger (H-CNO + GI), heated canola oil with turmeric (H-CNO + TU), heated sunflower oil with ginger (H-SFO + GI), heated sunflower oil with turmeric (H-SFO + TU)] for 90 days. Memory parameters [Morris water maze, elevated plus maze, novel object recognition test, T-maze (spontaneous alteration)], locomotor skills (open field test and rotarod test), antioxidant defense enzymes, reactive oxygen species, NOS2, ICAM-1, and NRF-2 level in the brain were assessed. Compared to their respective controls, heated oil-fed rats, but not those fed oils heated with ginger or turmeric, showed significant (p < 0.05) reduction in the memory, motor coordination skills, antioxidant defense enzymes, and NRF-2 activation in the brain. Compared to their respective controls, the brain NOS-2 and ICAM-1 were significantly (p < 0.05) increased in heated oil-fed rats, but not those fed oils heated with ginger or turmeric. Chronic intake of repeatedly heated oil causes brain dysfunction by inducing oxidative stress through NRF-2 downregulation. Lipid-solubles from ginger and turmeric that may migrate to oil during heating prevent the oxidative stress and cognitive dysfunction triggered by heated oils in rats.
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Affiliation(s)
- Mehrdad Zarei
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, 570020, India
| | - Vinayak Uppin
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, 570020, India
| | - Pooja Acharya
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, 570020, India
| | - Ramaprasad Talahalli
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, 570020, India.
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Zarei M, Acharya P, Talahalli RR. Ginger and turmeric lipid-solubles attenuate heated oil-induced hepatic inflammation via the downregulation of NF-kB in rats. Life Sci 2021; 265:118856. [PMID: 33278395 DOI: 10.1016/j.lfs.2020.118856] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 11/21/2020] [Accepted: 11/25/2020] [Indexed: 12/31/2022]
Abstract
PURPOSE Reusing deep-fried vegetable oils multiple times is a common practice to save costs, and their chronic consumption may cause hepatic dysfunction. In this investigation, we assessed the modulatory effects of ginger and turmeric lipid-solubles that may migrate to oils during heating on the hepatic inflammatory response in rats. METHODS Male Wistar rats were fed with; 1) control {native canola (N-CNO) or native sunflower (N-SFO)} oil, 2) heated (heated canola {(H-CNO) or heated sunflower (H-SFO)} oil, and 3) heated oil with ginger or turmeric {heated canola with ginger (H-CNO + GI) or heated canola oil with turmeric (H-CNO + TU), heated sunflower oil with ginger (H-SFO + GI) or heated sunflower oil with turmeric (H-SFO + TU)} for 120 days. Hepatic inflammatory response comprising eicosanoids, cytokines, and NF-kB were assessed. RESULTS Compared to respective controls, feeding heated oils significantly (p < 0.05); 1) increased eicosanoids (PGE2, LTB4, and LTC4) and cytokines (TNF-α, MCP-1, IL-1β, and IL-6), 2) increased nuclear translocation of NF-kB in the liver, and 3) increased the hepatic expression of 5-LOX, COX-2, BLT-1, and EP-4. However, feeding oils heated with ginger or turmeric positively countered the changes induced by consumption of heated oils. CONCLUSIONS Consumption of repeatedly heated oil may cause hepatic dysfunction by inducing inflammatory stress through NF-kB upregulation. Lipid-solubles from ginger and turmeric that may migrate to oil during heating prevent the hepatic inflammatory response triggered by heated oils in rats.
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Affiliation(s)
- Mehrdad Zarei
- Dept. of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore 570020, Karnataka, India.
| | - Pooja Acharya
- Dept. of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore 570020, Karnataka, India.
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Ramaiyan B, Zarei M, Acharya P, Talahalli RR. Dietary n-3 but not n-6 fatty acids modulate anthropometry and fertility indices in high-fat diet fed rats: a two-generation study. J Food Sci Technol 2021; 58:349-355. [PMID: 33505079 PMCID: PMC7813903 DOI: 10.1007/s13197-020-04548-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 05/08/2020] [Accepted: 05/21/2020] [Indexed: 11/30/2022]
Abstract
The present study assessed the modulatory potentials of dietary n-3 [α-linolenic acid (ALA, 18:3n-3, eicosapentaenoic acid (EPA, 20:5n-3 + docosahexaenoic acid (DHA) 22:6n-3), and n-6 fatty acid (LA, 18:2n-6)] on anthropometric parameters and fertility indices in high-fat-fed rats. Weanling female Wistar rats were fed with control diet (7% lard), high-fat diet (35% lard, HFL), high-fat with fish oil (21% fish oil + 14% lard, HFF), high-fat with canola oil (21% canola oil + 14% lard, HFC) and high-fat with sunflower oil (21% sunflower oil + 14% lard, HFS) for 2 months, mated and continued on their diets during pregnancy. At gestation day 18-20, the intra-uterine environment was examined in representative rats, and the rest were allowed for delivering pups. The pups after lactation were subjected to mating and feeding trials as above. Growth parameters (body weight, body length (BL), abdominal circumference (AC), thoracic circumference (TC), and Lee index and fertility parameters (litter size and sex ratio) were studied. Feeding HFL diet increased BL (16%), AC (33%) and TC (21%) compared to control (p < 0.05). Adipose tissue accumulation was 11% higher in the HFL group compared to control and was lowered with n-3 fatty acid incorporation in the diet. HFL group exhibited a lower percentage of fertility, pregnancy, and delivery indices. Litter size was decreased by 20%, and litter weight was increased by 23% in HFL group compared to control with more male pups. Our study indicated that n-3 to a larger extent than n-6 fatty acids modulated high-fat induced changes in the anthropometric parameters and fertility indices.
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Affiliation(s)
- Breetha Ramaiyan
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka 570020 India
| | - Mehrdad Zarei
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka 570020 India
| | - Pooja Acharya
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka 570020 India
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Mastoris I, Acharya P, Haglund N, Sauer A, Shah Z. All cause 30 readmission in patients with history of sudden cardiac arrest. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Sudden cardiac arrest (SCA) remains a significant cause of morbidity and mortality. Current evidence on readmission rates and causes after SCA are scarce.
Purpose
To describe patient characteristics, predictors of readmission and outcomes patients with history of sudden cardiac arrest and 30-day readmission
Methods
We analyzed the National Readmission Database for years 2016 and 2017 to identify all patients with initial diagnosis of SCA and 30 days readmission after the initial event. We analyzed baseline characteristics and looked into predictors, outcomes and diagnoses of re-admission.
Results
We identified 79,844 patients with an initial diagnosis of SCA that were discharged alive after index admission. Of those 14,387 (18.01%) had one readmission and 3,978 (4.99%) had more than one readmission. The mean age was 64 years and 41.3% were females. Hypertension, dyslipidemia, diabetes, CAD, CHF and CKD were present in 76.5%, 42.4%, 46.3%, 50.4%, 62.3% and 43.5% respectively. Overall mortality was 9.1% and length of stay 7.8 days. (Table 1). Congestive heart failure was the predominant diagnosis for readmission (Figure). Female sex (HR=0.93; p=0.004) was the only independent risk factor for all cause readmission.
Conclusions
Patients with history of SCA that have a 30-day readmission have significantly more comorbidities and length of day. Congestive heart failure is the predominant diagnosis for readmission
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- I Mastoris
- University of Kansas Medical Center, Kansas City, United States of America
| | - P Acharya
- University of Kansas Medical Center, Kansas City, United States of America
| | - N Haglund
- University of Kansas Medical Center, Kansas City, United States of America
| | - A Sauer
- University of Kansas Medical Center, Kansas City, United States of America
| | - Z Shah
- University of Kansas Medical Center, Kansas City, United States of America
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15
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Acharya P, Uppin V, Zarei M, Talahalli RR. Role of n-3 Fatty Acids on Bile Acid Metabolism and Transport in Dyslipidemia: A Review. Lipids 2020; 56:125-139. [PMID: 33074554 DOI: 10.1002/lipd.12289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 05/19/2020] [Accepted: 09/22/2020] [Indexed: 11/06/2022]
Abstract
Dietary n-3 fatty acids, especially of marine origin, eicosapentaenoic acid (20:5n-3) and docosahexaenoic acid (22:6n-3), have always been lauded for their profound effects on regulating the risk factors for major metabolic disorders. Yet, their consumption rate is poor compared to n-6 fatty acids [linoleic acid (18:2n-6)], which are predominantly consumed. Hence, the skewed n-6 to n-3 fatty acid ratio may have a bearing on the risk factors of various diseases, including dyslipidemia. Dyslipidemia and other lifestyle diseases associated with it, such as diabetes, obesity, hypertension, are a growing concern in both developed and developing countries. A common strategy for addressing dyslipidemia involves bile acid (BA) sequestration, to interrupt the enterohepatic circulation of BA, resulting in the modulation of lipid absorption in the intestine, thereby normalizing the levels of circulating lipids. The BA homeostasis is under the tight control of hepatic and enteric BA transporters. Many investigations have reported the effects of dietary constituents, including certain fatty acids on the reabsorption and transport of BA. However, a critical review of the effects of n-3 fatty acids on BA metabolism and transport is not available. The present review attempts to explore certain unmapped facets of the n-3 fatty acids on BA metabolism and transport in dyslipidemia, and their interplay with biological processes involving lipid rafts and gut microbiome.
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Affiliation(s)
- Pooja Acharya
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, KRS Road, Mysore, Karnataka, 570020, India.,Academy of Scientific and Innovative Research (AcSIR), Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh, 201002, India
| | - Vinayak Uppin
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, KRS Road, Mysore, Karnataka, 570020, India.,Academy of Scientific and Innovative Research (AcSIR), Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh, 201002, India
| | - Mehrdad Zarei
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, KRS Road, Mysore, Karnataka, 570020, India
| | - Ramaprasad R Talahalli
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, KRS Road, Mysore, Karnataka, 570020, India.,Academy of Scientific and Innovative Research (AcSIR), Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh, 201002, India
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16
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Mathur M, Acharya P, Karki A. Grouped Red Vesicles in the Axilla. Actas Dermo-Sifiliográficas (English Edition) 2020. [DOI: 10.1016/j.adengl.2020.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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17
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Mathur M, Acharya P, Karki A. Vesículas rojas agrupadas en la axila. Actas Dermo-Sifiliográficas 2020; 111:681-682. [DOI: 10.1016/j.ad.2019.01.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 01/03/2019] [Indexed: 10/24/2022] Open
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18
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Uppin V, Acharya P, Bettadaiah Bheemanakere K, Talahalli RR. Hyperlipidemia Downregulate Brain Antioxidant Defense Enzymes and Neurotrophins in Rats: Assessment of the Modulatory Potential of EPA+DHA and Zerumbone. Mol Nutr Food Res 2020; 64:e2000381. [PMID: 32918393 DOI: 10.1002/mnfr.202000381] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/17/2020] [Indexed: 01/22/2023]
Abstract
BACKGROUND Oxidative stress (OS) plays a vital role in the pathogenesis of cognitive disorders. In this study, brain antioxidant defense dysregulation as a consequence of hyperlipidemia, and the efficacy of eicosapentaenoic acid (EPA) + docosahexaenoic acid (DHA), and zerumbone (Z) in their modulation are assessed. METHODS AND RESULTS Male Wistar rats are fed control, high-fat (HF), HF + fish oil (HF+F), HF + zerumbone (HF+Z), and HF + fish oil + zerumbone (HF+F+Z) diet for 60 days. Markers of OS, antioxidant enzymes, monoamine oxidase, nuclear factor (erythroid-derived 2)-like 2 (NRF-2), nitric oxide-2 (NOS-2), inter cellular adhesion molecule-1 (ICAM-1), and neurotrophins are measured. Hyperlipidemia increases OS, decreases antioxidant enzyme activity, increases monoamine oxidase activity, increases NOS-2 and ICAM-1 expression, decreases NRF-2 activation, decreases nerve growth factor (NGF), and brain-derived neurotrophic factor (BDNF) levels in the brain compared to control. While EPA+DHA and zerumbone significantly (p < 0.05) restores the perturbations induced by hyperlipidemia. CONCLUSION It is concluded that hyperlipidemia cause OS by decreasing the activity of brain antioxidant enzymes via the downregulation of NRF-2. The reduced brain neurotrophins in hyperlipidemia indicate its potential risk on cognitive attributes. EPA+DHA, together with zerumbone, positively modulates hyperlipidemia induced brain dysfunction thereby offering promising therapeutic strategy.
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Affiliation(s)
- Vinayak Uppin
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, 570020, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Pooja Acharya
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, 570020, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Kempaiah Bettadaiah Bheemanakere
- Department of Spices and Flavor Sciences, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, 570020, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Ramaprasad Ravichandra Talahalli
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, 570020, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
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19
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Dharel D, Bhattarai A, Paudel YR, Acharya P, Acharya K. Higher rates of early initiation of breastfeeding associated with health facility delivery in Nepal. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.1121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Initiation of breastfeeding within one hour from birth is one of the five key essential newborn care messages, implemented along with birth preparedness package since 2008. This study aimed to determine the trend of early initiation of breastfeeding (EIBF) and to assess the effect of health facility delivery on EIBF in Nepal.
Methods
We analyzed the data from the last four nationally representative Nepal Demographic and Health Surveys (NDHS) conducted in 2001,2006,2011 and 2016. Data on the early initiation of breastfeeding was obtained from the mothers of infants born within 24 months prior to the survey. The explanatory variable was the place of delivery, dichotomized as either the health facility, or home delivery. Survey year had a significant interaction with the place of delivery. Multivariable logistic regression was conducted separately on pooled samples before (NDHS 2001 and 2006) and after (NDHS 2011 and 2016) the program implementation. Adjusted odds ratio (AOR) with 95% confidence interval (CI) for EIBF was calculated after adjusting for predetermined covariates.
Results
The rate of EIBF increased by 26.5% points (from 32.8% in 2001 to 59.3% in 2016) among infants delivered in a health facility, compared to an increase by 17.1% points (from 29.9% to 47.0%) among home born infants. EIBF increased by 32.5% points before, compared to 49.7% points after BPP. Delivery in a health facility was associated with a higher odd of EIBF in later years (AOR2.3, 95% CI 2.0,2.8), but not in earlier years (AOR1.3, 95% CI 0.9,2.0). Delivery by caesarean section, first-born infant, and lack of maternal education were associated with a lower rate of EIBF in both periods.
Conclusions
Higher EIBF was associated with health facility delivery in Nepal, only after programmatic emphasis on essential newborn care messages. This implies the need for explicit focus on EIBF at birth, particularly when mother is less educated, primiparous or undergoing operative delivery.
Key messages
The rate of initiation of breastfeeding within an hour from birth is increasing in Nepal, with higher rates in health facility delivery, as shown by the recent four nationally representative surveys. Programmatic focus on essential newborn care messages may have contributed to significant association of higher rates of early initiation of breastfeeding when delivered in health facility.
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Affiliation(s)
- D Dharel
- College of Medicine, University of Saskatchewan, Saskatoon, Canada
| | - A Bhattarai
- Department of Community Health Sciences, University of Calgary, Calgary, Canada
| | - Y R Paudel
- School of Public Health, University of Alberta, Edmonton, Canada
| | - P Acharya
- Nepal Development Society, Bharatpur, Nepal
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20
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Acharya P, Lau AWC. Charge regulation of a surface immersed in an electrolyte solution. Eur Phys J E Soft Matter 2020; 43:54. [PMID: 32794084 DOI: 10.1140/epje/i2020-11978-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 07/15/2020] [Indexed: 06/11/2023]
Abstract
In this paper, we investigate theoretically a model of charge regulation of a single charged planar surface immersed in an aqueous electrolyte solution. Assuming that the adsorbed ions are mobile in the charged plane, we formulate a field theory of charge regulation where the numbers of adsorbed ions can be determined consistently by equating the chemical potentials of the adsorbed ions to that of the ions in the bulk. We analyze the mean-field treatment of the model for electrolyte of arbitrary valences, and then beyond, where correlation effects are systematically taken into account in a loop expansion. In particular, we compute exactly various one-loop quantities, including electrostatic potentials, ion distributions, and chemical potentials, not only for symmetric (1, 1) electrolyte but also for asymmetric (2, 1) electrolyte, and make use of these quantities to address charge regulation at the one-loop level. We find that correlation effects give rise to various phase transitions in the adsorption of ions, and present phase diagrams for (1, 1) and (2, 1) electrolytes, whose distinct behaviors suggest that charge regulation, at the one-loop level, is no longer universal but depends crucially on the valency of the ions.
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Affiliation(s)
- P Acharya
- Department of Physics, Florida Atlantic University, 33431, Boca Raton, FL, USA
| | - A W C Lau
- Department of Physics, Florida Atlantic University, 33431, Boca Raton, FL, USA.
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21
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Acharya P, Mathur M. Low‐dose naltrexone in Hailey–Hailey disease: the importance of dosing. Br J Dermatol 2020; 183:193. [DOI: 10.1111/bjd.19014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- P. Acharya
- College of Medical Sciences, Department of Dermatology Bharatpur Nepal 44200
| | - M. Mathur
- College of Medical Sciences, Department of Dermatology Bharatpur Nepal 44200
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22
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Acharya P, Mathur M. Smartphone applications for the triage of skin lesions using machine learning: time to integrate the clinical information? J Eur Acad Dermatol Venereol 2020; 34:e424-e425. [DOI: 10.1111/jdv.16371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 02/24/2020] [Accepted: 03/06/2020] [Indexed: 01/13/2023]
Affiliation(s)
- P. Acharya
- College of Medical Sciences Bharatpur Nepal
| | - M. Mathur
- College of Medical Sciences Bharatpur Nepal
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23
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Bettadahalli S, Acharya P, Ramaiyan B, Talahalli RR. Evidence on oleic acid and EPA + DHA role in retinal antioxidant defense, leukocyte adhesion, and vascular permeability: Insight from hyperlipidemic rat model. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.103864] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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24
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Affiliation(s)
- P. Acharya
- College of Medical Sciences, Department of Dermatology Bharatpur Nepal 44200
| | - M. Mathur
- College of Medical Sciences, Department of Dermatology Bharatpur Nepal 44200
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25
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Acharya P, Mathur M. Artificial intelligence in dermatology: the "unsupervised" learning. Br J Dermatol 2020:bjd.18933. [PMID: 32030726 DOI: 10.1111/bjd.18933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The potential areas of application of artificial intelligence in dermatology are ever-increasing. With the wide availability of smartphones equipped with high-resolution cameras and impressive processing powers, harnessing these capabilities using machine learning (ML) could open new prospects in the management of dermatological disorders. Du-Harpur et al. have done a commendable job reviewing the utility of artificial intelligence in dermatology in an easily understandable manner by most dermatologists1 .
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Affiliation(s)
- P Acharya
- College of Medical Sciences, Department of Dermatology, Bharatpur, Nepal, 44200
| | - M Mathur
- College of Medical Sciences, Department of Dermatology, Bharatpur, Nepal, 44200
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Bettadahalli S, Acharya P, Talahalli R. Evidence on n-3 Fatty Acids and Oleic Acid Role in Retinal Inflammation and Microvascular Integrity: Insight from a Hyperlipidemic Rat Model. Inflammation 2020; 43:868-877. [DOI: 10.1007/s10753-019-01172-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Mathur M, Acharya P. Trichoscopy of primary cicatricial alopecias: an updated review. J Eur Acad Dermatol Venereol 2019; 34:473-484. [PMID: 31566830 DOI: 10.1111/jdv.15974] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 09/04/2019] [Indexed: 12/19/2022]
Abstract
Trichoscopy is an emerging technique for the evaluation of various hair and scalp disorders including primary cicatricial alopecias (PCAs). Early diagnosis of PCAs can lead to effective management and trichoscopy could be a useful aid during this process. Multiple studies have reported the trichoscopic features of PCAs, however, a focused review evaluating these disorders with their trichoscopic features is lacking. With the objective of evaluating the trichoscopic findings reported in the literature for various PCAs, we conducted a systematic literature search in PubMed and Embase. The search yielded 310 studies in a total of which 54 studies were included in our review. Majority of these studies originated from the Caucasian or Asian population. Through this review, we provide an overview of the frequent and specific trichoscopic findings in different PCAs with their clinical significance where applicable based on the current knowledge and identify the areas for future research.
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Affiliation(s)
- M Mathur
- Department of Dermatology, College of Medical Sciences, Bharatpur, Nepal
| | - P Acharya
- Department of Dermatology, College of Medical Sciences, Bharatpur, Nepal
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28
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Venugopal N, Acharya P, Zarei M, Talahalli RR. Cysteinyl leukotriene receptor antagonism: a promising pharmacological strategy for lowering the severity of arthritis. Inflammopharmacology 2019; 27:923-931. [PMID: 31309487 DOI: 10.1007/s10787-019-00618-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 06/24/2019] [Indexed: 12/29/2022]
Abstract
BACKGROUND AND AIMS Though cyclooxygenase inhibitors are employed in rheumatoid arthritis treatment, modulators of leukotrienes are underexplored. We investigated the therapeutic potential of montelukast, a known cysteinyl leukotriene receptor-1 (CysLT1) inhibitor in an experimental rat model of arthritis. METHODS Arthritis was induced in rats, and montelukast (5 mg/kg body wt.) was administered prophylactically (PAM) and therapeutically (TAM) through oral route. RESULTS AND DISCUSSION Blood and joint tissue markers of oxidative stress (lipid peroxidation, protein carbonyls, and nitric oxides) were significantly (p < 0.05) reduced in montelukast administered rats. Paw inflammation, RA markers (RF and CRP), eicosanoids (PGE2, LTB4, and LTC4), cytokines (IL-1β and MCP-1), activity of hydrolytic enzymes (collagenase, elastase, and hyaluronidase), expression of matrix metalloproteinases (MMP), and EP-4 receptor were significantly (p < 0.05) reduced in montelukast administered rats. This study established that leukotriene inhibition through montelukast lowered the severity of arthritis and thus a potential strategy for reducing the severity of arthritis.
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Affiliation(s)
- Nayana Venugopal
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, 570020, India
| | - Pooja Acharya
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, 570020, India
| | - Mehrdad Zarei
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, Karnataka, 570020, India
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Tong JJ, Acharya P, Ebihara L. Calcium-Activated Chloride Channels in Newly Differentiating Mouse Lens Fiber Cells and Their Role in Volume Regulation. Invest Ophthalmol Vis Sci 2019; 60:1621-1629. [PMID: 30995319 PMCID: PMC6736345 DOI: 10.1167/iovs.19-26626] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 03/14/2019] [Indexed: 11/24/2022] Open
Abstract
Purpose Chloride channels have been proposed to play an important role in the regulation of lens volume. Unfortunately, little information is available about the molecular identity of these channels or how they are regulated in the lens due to the difficulties in isolating mouse fiber cells. Recently, our laboratory has developed a new technique for isolating these cells by using transgenic mouse lenses that lack both Cx50 and Cx46. The purpose of this study was to test the hypothesis that newly differentiating mouse fiber cells express calcium-activated chloride channels (CaCCs) by using this technique. Methods Differentiating fiber cells were isolated from lenses of double knockout mice that lack both Cx50 and Cx46 by using collagenase. Membrane currents were studied using the whole-cell patch clamp technique. The molecular identity and distribution of CaCCs were investigated using RT-PCR and immunofluorescence. Results Our electrophysiologic experiments suggest that peripheral fiber cells express a calcium-activated chloride current. The voltage gating properties, calcium sensitivity, and pharmacologic properties of this current resembled those of TMEM16 CaCCs. RT-PCR analysis demonstrated the presence of TMEM16A and TMEM16B transcripts in wild-type and double knockout mouse lenses. Both TMEM16A and TMEM16B proteins were detected in the differentiating epithelial cells and newly elongating fiber cells near the equator of the lens by immunohistochemistry. Conclusions Our results demonstrate that membrane conductance of peripheral fiber cells contain CaCCs that can be attributed to TMEM16A and TMEM16B. Given their critical role in volume regulation in other tissues, we speculate that these channels play a similar role in the lens.
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Affiliation(s)
- Jun-Jie Tong
- Department of Physiology and Biophysics, Rosalind Franklin University of Medicine and Science, Chicago, Illinois, United States
| | - Pooja Acharya
- Department of Physiology and Biophysics, Rosalind Franklin University of Medicine and Science, Chicago, Illinois, United States
| | - Lisa Ebihara
- Department of Physiology and Biophysics, Rosalind Franklin University of Medicine and Science, Chicago, Illinois, United States
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Acharya P, Nanjaiah L, Singh SA, Talahalli RR. Hyperglycemia exacerbates dyslipidemia-induced changes in uptake, synthesis, and transporters of bile acids in rats: Assessment of restorative potentials of ALA and EPA + DHA. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.01.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Acharya P, Talahalli RR. n-3 Fatty Acids Abrogate Dyslipidemia-Induced Changes in Bile Acid Uptake, Synthesis, and Transport in Young and Aged Dyslipidemic Rats. Lipids 2019; 54:39-51. [DOI: 10.1002/lipd.12125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 11/01/2018] [Accepted: 12/20/2018] [Indexed: 01/05/2023]
Affiliation(s)
- Pooja Acharya
- Department of Biochemistry; CSIR-Central Food Technological Research Institute; Mysore, 570020 Karnataka India
- Academy of Scientific and Innovative Research (AcSIR); Ghaziabad, 201002 Uttar Pradesh India
| | - Ramaprasad R. Talahalli
- Department of Biochemistry; CSIR-Central Food Technological Research Institute; Mysore, 570020 Karnataka India
- Academy of Scientific and Innovative Research (AcSIR); Ghaziabad, 201002 Uttar Pradesh India
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Acharya P, Talahalli RR. Aging and Hyperglycemia Intensify Dyslipidemia-Induced Oxidative Stress and Inflammation in Rats: Assessment of Restorative Potentials of ALA and EPA + DHA. Inflammation 2018; 42:946-952. [DOI: 10.1007/s10753-018-0949-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Thongprayoon C, Acharya P, Acharya C, Chenbhanich J, Bathini T, Boonpheng B, Sharma K, Wijarnpreecha K, Ungprasert P, Gonzalez Suarez ML, Cheungpasitporn W. Hypocalcemia and bone mineral density changes following denosumab treatment in end-stage renal disease patients: a meta-analysis of observational studies. Osteoporos Int 2018; 29:1737-1745. [PMID: 29713798 DOI: 10.1007/s00198-018-4533-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 04/11/2018] [Indexed: 02/06/2023]
Abstract
The incidence of hypocalcemia and bone mineral density (BMD) changes in end-stage renal disease (ESRD) patients on denosumab remains unclear. We performed this meta-analysis to assess the incidence of denosumab-associated hypocalcemia and effects of denosumab on BMD in ESRD patients. A literature search was conducted using MEDLINE, EMBASE, and Cochrane Database from inception through November 2017 to identify studies evaluating incidence of denosumab-associated hypocalcemia and changes in serum calcium, phosphate, alkaline phosphatase (ALP), parathyroid hormone (PTH), and BMD from baseline to post-treatment course of denosumab in ESRD patients. Study results were pooled and analyzed using a random-effect model. The protocol for this meta-analysis is registered with PROSPERO (International Prospective Register of Systematic Reviews; no. CRD42017081074). Six observational studies with a total of 84 ESRD patients were enrolled. The pooled estimated incidence of hypocalcemia during denosumab treatment was 42% (95% CI 29-55%, I2 = 0%). Hypocalcemia occurred approximately 7 to 20 days after the first dose and reached nadir of low calcium levels in the first 2 weeks up to 2 months. However, there were no significant changes in serum calcium or phosphate from baseline to post-treatment course (≥ 3 months after treatment) with mean differences [MDs] of 0.20 mg/dL (95% CI, - 0.30 to 0.69 mg/dL) and - 0.10 mg/dL (95% CI, - 0.70 to 0.49 mg/dL). There were significant reductions in ALP and PTH levels with standardized mean differences (SMDs) of - 0.65 (95% CI - 1.13 to - 0.16) and - 1.89 (95% CI - 3.44 to - 0.34), respectively. There were significant increases in T-scores with MDs of 0.39 (95% CI 0.10 to 0.69) and 0.79 (95% CI 0.60 to 0.98) for lumbar spine and femoral neck, respectively. Our study demonstrates the estimated incidence of denosumab-associated hypocalcemia in dialysis patients of 42%. From baseline to post-treatment course, although there are no differences in serum calcium and phosphate, our findings suggest significant reductions in ALP and PTH and a significant increase in BMD. Currently, denosumab should not be considered as the treatment of choice in ESRD patients until more safety and efficacy data are available.
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Affiliation(s)
- C Thongprayoon
- Department of Internal Medicine, Bassett Medical Center, Cooperstown, NY, USA
| | - P Acharya
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Mississippi, 2500 N. State St., Jackson, MS, 39216, USA
| | - C Acharya
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Mississippi, 2500 N. State St., Jackson, MS, 39216, USA
| | - J Chenbhanich
- Department of Internal Medicine, Metrowest Medical Center, Framingham, MA, USA
| | - T Bathini
- Department of Internal Medicine, Bassett Medical Center, Cooperstown, NY, USA
| | - B Boonpheng
- Department of Internal Medicine, East Tennessee State University, Johnson City, TN, USA
| | - K Sharma
- Department of Internal Medicine, Bassett Medical Center, Cooperstown, NY, USA
| | - K Wijarnpreecha
- Department of Internal Medicine, Bassett Medical Center, Cooperstown, NY, USA
| | - P Ungprasert
- Clinical Epidemiology Unit, Department of Research and Development, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - M L Gonzalez Suarez
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Mississippi, 2500 N. State St., Jackson, MS, 39216, USA
| | - W Cheungpasitporn
- Division of Nephrology, Department of Medicine, University of Mississippi Medical Center, Mississippi, 2500 N. State St., Jackson, MS, 39216, USA.
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Karmacharya RM, Devbhandari M, Tuladhar S, Shrestha B, Acharya P. Chest Trauma Requiring Admission: Differences in Earthquake Victims and other Modes of Injury. Kathmandu Univ Med J (KUMJ) 2018; 16:237-239. [PMID: 31719313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Background The April 25, 2015 Nepal earthquake (7.8 Richter scale) followed by May 12, 2015 major aftershock (7.3 Richter scale) killed more than 9,000 people and injured more than 23,000 people. Dhulikhel Hospital situated at Kavre district of Nepal encountered major bulk of Earthquake victims residing at Sindhuplanchowk, Kavre and Dolakha districts during subsequent earthquake events. Objective To distinguish any significant differences in hospital admitted Earthquake and nonEarthquake chest trauma cases. Method Retrospective study was done comparing earthquake with non-earthquake chest trauma cases admitted in Dhulikhel Hospital. Study included parameters like mode of injury, time taken to reach health center, symptoms at presentation, involvement of chest area, presence and site of rib fracture, presence of hemothorax or pneumothorax, spectrum of treatment required, hospital admission days. Result There were total 23 earthquake victims of which 14 (61%) were female and rest of 9(39%) were male whereas out of total 95 non earthquake cases 23(24%) were female and 72 (76%) were male (p< 0.01). Mean age in earthquake victims was 53.73 (SD 18.33, range 19-84) while non earthquake cases was 46.83(SD 16.53, range 11-90), (p >0.05). Major mode of injuries in earthquake victims was hit by objects (82.60%) followed by fall (17.4 %). Incidence of rib fractures was 69.56% in earthquake victims and 85.26 % in non earthquake cases with average of 2-3 ribs in both cases (p>0.05). There was higher rates of pneumothorax in earthquake victims (52.17%) compared to non earthquake cases (30.52%), (p<0.05). There wasn't evidently major differences in incidence of pulmonary contusion, hemothorax and surgical emphysema. The mean duration of hospital admission days in earthquake victims was 7.78 days while non earthquake cases was 5.04 days (p >0.05). The total number of patients requiring chest tube insertion in earthquake victims was 16(69.56%) while that was 29(30.52 %) in non earthquake patients (p <0.01). Conclusion There was preponderance of female gender in earthquake related cases compared to non earthquake cases. Incidence of rib fracture was higher in earthquake victims. In earthquake victims, higher proportion of patient required chest tube drainage compared to non earthquake cases.
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Affiliation(s)
- R M Karmacharya
- Department of Surgery (CTVS), Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - M Devbhandari
- Department of Surgery (CTVS), Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - S Tuladhar
- Department of Surgery (CTVS), Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - B Shrestha
- Department of Surgery (CTVS), Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - P Acharya
- Department of Surgery (CTVS), Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
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Kapil-Mani KC, Acharya P, Arun S. Precontoured Clavicular Locking Plate with Broad Lateral End: A Newly Designed Plate for Lateral Third Clavicle Fractures. Malays Orthop J 2018; 12:15-20. [PMID: 29725507 PMCID: PMC5920253 DOI: 10.5704/moj.1803.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Introduction: Various treatment modalities are available but no consensus has been reached for optimal treatment of lateral third clavicle fractures. Precontoured locking plates with broad lateral end for multiple screws fixation is a newly designed plate for lateral third clavicle fractures. The objective of our study was to analyse the functional outcomes as well as complications of this technique in a significant number of cases with long follow-up duration. Materials and Methods: Forty-six patients with distal third clavicle fractures were treated by precontoured clavicular locking plate with broad lateral end. Functional outcomes were assessed on the basis of Constant-Murley Shoulder Outcome Score and University of California, Los Angeles (UCLA) Shoulder Rating Score, active shoulder range of motion, time for fracture union and coraco-clavicular distance. Results: The mean Constant-Murley score was 92.56±4.47 (range: 79-98) for injured side and 96.22±2.23 (range: 90-100) for normal side with p-Value 0.56. Mean coraco-clavicular distance at final follow-up was 10.52±1.13 mm (range 9.7 to 11.7 mm) in injured side and 10.25±0.98 mm (range 9.6 to 11.2 mm) in normal side. Mean UCLA Shoulder Rating Score was 32.55±2.12 (range: 27-34) for injured side and 33.46±1.88 (range: 31- 35) on normal side with p value 0.58. No major complications that necessitated revision of surgery occurred in our study. Conclusion: This newly designed plate seemed extremely useful in successful union of lateral third clavicle fractures, with reduced rate of complications like fixation failures, iatrogenic rotator cuff injury, AC joint osteoarthritis and sub-acromial bursitis, with good functional outcomes.
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Affiliation(s)
- K C Kapil-Mani
- Department of Orthopaedics, Civil Service Hospital, Kathmandu, Nepal
| | - P Acharya
- Department of Orthopaedics, Civil Service Hospital, Kathmandu, Nepal
| | - S Arun
- Department of Orthopaedics, Civil Service Hospital, Kathmandu, Nepal
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Dongol A, Acharya P, Prasad JN, Jaisani MR. A veil in the oral cavity: report of two cases of oral synechiae. Int J Oral Maxillofac Surg 2016; 46:286-288. [PMID: 28041885 DOI: 10.1016/j.ijom.2016.11.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 09/29/2016] [Accepted: 11/22/2016] [Indexed: 10/20/2022]
Abstract
An oral synechia is an adhesion between the maxilla and the mandible; these adhesions can be found at various locations in the oral cavity. The presence of oral synechiae associated with cleft palate represents a rare congenital deformity. Oral synechiae with cleft palate can have serious implications for airway management and feeding in babies, and hence requires early intervention to reduce morbidity. Two cases of congenital oral synechiae accompanied by cleft palate, in which the synechiae veiled the oral cavity restricting a detailed intraoral examination, are reported here.
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Affiliation(s)
- A Dongol
- Department of Oral and Maxillofacial Surgery, BP Koirala Institute of Health Sciences (BPKIHS), Dharan, Nepal.
| | - P Acharya
- Department of Oral and Maxillofacial Surgery, BP Koirala Institute of Health Sciences (BPKIHS), Dharan, Nepal
| | - J N Prasad
- Department of Anaesthesiology and Critical Care, BP Koirala Institute of Health Sciences (BPKIHS), Dharan, Nepal
| | - M R Jaisani
- Department of Oral and Maxillofacial Surgery, BP Koirala Institute of Health Sciences (BPKIHS), Dharan, Nepal
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Yadav NV, Sadashivaiah, Ramaiyan B, Acharya P, Belur L, Talahalli RR. Sesame Oil and Rice Bran Oil Ameliorates Adjuvant-Induced Arthritis in Rats: Distinguishing the Role of Minor Components and Fatty Acids. Lipids 2016; 51:1385-1395. [DOI: 10.1007/s11745-016-4203-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 10/03/2016] [Indexed: 01/17/2023]
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Kc KM, Acharya P, Sigdel A. Titanium Elastic Nailing System (TENS) for Tibia Fractures in Children: Functional Outcomes and Complications. JNMA J Nepal Med Assoc 2016; 55:55-60. [PMID: 28029668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
Abstract
INTRODUCTION Closed reduction and cast application is still regarded as first line treatment for pediatric tibial fractures. Over the past few decades, management of pediatric tibial fractures has shifted more towards operative intervention because of quicker recovery, shorter rehabilitation period, less immobilization, lack of stiffness of adjoining joints, and less psychological impact to the children. Flexible intramedullary nails not only fulfill the above advantage but also maintain alignment and rotation. METHODS This was a retrospective study of pediatric tibial fractures fixed with two titanium elastic nails through proximal ends of bones. Alignment of fracture, any infection, delayed union, non union, limb length discrepancy, motion of knee joint, and fracture union time were measured during follow-up examination. RESULTS Forty-five patients were enrolled into the study out of which 28 (62.2%) were male and 17 (37.8%) were female. Average age of patient was 9.48±2.17 years and average time taken to heal the fractures (both clinical and radiological) was 11.17±2.81 weeks. There were 2 (4.4%) of malunion, 4 (8.8%) of delayed union, 3 (6.6%) of limb shortening, 2 (4.4%) of limb lengthening, 6 (13.6%) of nail prominence and skin irritation, 2 (4.4%) of superficial infection at nail entry site and one case of re-fracture. CONCLUSIONS Titanium elastic nail fixation is a simple, easy, rapid, reliable and effective method for management of pediatric tibial fractures in patients with operative indications. There may be the chances of complication following the TENS in tibia but these are avoidable as well as manageable with careful precautions.
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Affiliation(s)
- K M Kc
- Department of Orthopedics, Civil Service Hospital, Minbhawan, Kathmandu, Nepal
| | - P Acharya
- Department of Orthopedics, Civil Service Hospital, Minbhawan, Kathmandu, Nepal
| | - A Sigdel
- Department of Orthopedics, Civil Service Hospital, Minbhawan, Kathmandu, Nepal
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Dwivedi R, Sah S, Dahal M, Acharya P, Gurung S. Close Versus Limited Open Method of Ender's Nail Fixation in Paediatric Femoral Shaft Fractures. JNMA J Nepal Med Assoc 2014; 52:806-810. [PMID: 26905709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Abstract
INTRODUCTION There are various surgical options for treating fracture of femoral shaft in children. Here we compare the results of close with limited open method of Ender's nails fixation of femoral shaft fractures in children. METHODS We studied 60 children with femoral shaft fractures in age group 5-15 years. Ender's nail fixation was done by close technique in 40 cases and in 20 cases by limited open technique. RESULTS The mean operative time was significantly high in limited open group being 64 minutes in comparison to 50 minutes in close group. There was no significant difference between close and limited open groups with respect to time for partial weight bearing and time for full weight bearing. Fracture united sooner in close group as compared to open group. Union was achieved in all patients within a mean of 11 weeks in close group in comparison to 12.4 weeks in open group. According to the Flynn criteria in close group 34 patients had excellent results, 6 had satisfactory and none poor. In limited open group outcome was excellent in 14 patients, satisfactory in 4 patients and 2 had poor result. There was no significant difference in outcome based on Flynn criteria between two groups. CONCLUSIONS Though operative time is more and healing is delayed in Ender's nail fixation by limited open technique, there is no statistical difference in final outcome as per Flynn criteria between close and limited open technique of Ender's nail fixation of femoral shaft fractures in children.
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Affiliation(s)
- R Dwivedi
- Department of Orthopaedics, Lumbini Medical College Teaching Hospital, Tansen Palpa, Nepal
| | - S Sah
- Department of Orthopaedics, Koshi Zonal Hospital, Biratnagar, Koshi, Nepal
| | - M Dahal
- Department of Orthopaedics, Koshi Zonal Hospital, Biratnagar, Koshi, Nepal
| | - P Acharya
- Department of Orthopaedics, Civil Service Hospital, Kathmandu, Nepal
| | - S Gurung
- Department of Orthopaedics, Nepalgunj Medical College, Kohalpur, Nepal
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Ghimire M, Karki P, Khanal B, Acharya P, Sharma SK, Pahari B. Clinicomicrobiological profile of infective endocarditis in a tertiary care center of Nepal. J Coll Med Sci-Nepal 2013. [DOI: 10.3126/jcmsn.v8i4.8698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background Infective endocarditis is a common problem and data regarding its clinical and microbiological pattern from developing countries are sparse. We studied clinical features and the microbiological pathogens in patients with Infective Endocarditis in our Hospital. Objective To study the clinical profile and microbiological pathogens involved in patients with Infective Endocarditis, admitted under Department of Internal Medicine of B.P Koirala Institute of Health Sciences. Materials and methods A total of 54 patients with history of fever and underlying heart disease were studied. It was a hospital based cross sectional descriptive study done in patients with infective endocarditis presented to us from March 2007 to February 2008 in B.P Koirala Institute of Health Sciences. Results Out of 54 patients, 11 (20.4%) had Dukes definite IE. The male: female ratio was 1.2:1. The mean age of the study group was 27.3 years (range=16-55). In IE group, fever was present in 100% cases (n=11) as it was the inclusion criteria of the study, followed by SOB 81.8% (n=9). History of antibiotic therapy prior to the presentation was present in 36.7 % (n=4) patients. Pallor was the most common sign 63.6% (n=7). Splenomegaly was seen in 18.2% (n=2). Anaemia (Hb<10gm %) in 36.4% (n=4) and microscopic haematuria in 72.3% (n=8) cases. Blood culture positivity was seen in 36.4 %. The most common pathogens were Staphylococcus aureus in 27.3% (n=3) and Acinetobacter species in 9.1% (n=1). Conclusion In our study we found that the clinical spectrum of IE was different from the west in that the majority of patients being young in our study. However, RHD still is the commonest underlying heart disease and Staphylococcus aureus being the commonest isolate. Journal of College of Medical Sciences-Nepal, 2012, Vol-8, No-4, 34-41 DOI: http://dx.doi.org/10.3126/jcmsn.v8i4.8698
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Bansal R, Guleria A, Acharya P. FT-IR Method Development and Validation for Quantitative Estimation of Zidovudine in Bulk and Tablet Dosage Form. Drug Res (Stuttg) 2013; 63:165-70. [DOI: 10.1055/s-0032-1333297] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- R. Bansal
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - A. Guleria
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
| | - P. Acharya
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
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Abstract
Introduction: The surgical procedure by the anterior, posterior and combined antero-posterior approaches had applied for the treatment of cervical spondylotic myelopathy.
Methods: During the treatment process, all patients were pre-operatively as well post-operatively graded according to Japanese Orthopaedics Association. Several surgical methods such as anterior approach, posterior approach, and combined antero-posterior approach have been addressed for CSM patients, with the choice based on the pathogenesis of the myelopathy. The main indications for surgery were evidence of myelopathy on physical examinations, a JOA score below 13 points help with spinal cord compression observed on plain X-ray, CT scan, MRI studies.
Results: The pre-operative JOA scores were 7.60±1.23 in laminoplasty, 8.30±1.03 in diskectomy and corpectomy and 7.10±1.20 in combined antero-posterior approach patients. At the follow-up after three months the JOA scores were laminoplasty 13.30±1.30, diskectomy and corpectomy 13.55±1.15 and combined antero-posterior 13.50±1.08. The JOA recovery rate averaged, 61.08±11.25% in laminoplasty, 60.67±10.60% in diskectomy and corpectomy and 64.67±10.72% in combined anteroposterior approach. The high- signal intensity changed to normal in 18 out of 28 and no any kyphotic change and instability were found in cervical spine at the follow up.
Conclusions: Patients with OPLL (continuous, segmental and mixed type), stenosis of cervical spinal canal, multilevel cervical spondylosis, large and high ossification of IVDP with stenosis were improved with laminoplasty. Patients with PIVD, CSM with kyphosis, post laminectomy , OPLL herniated type, unstable vertebral alignment, stenosis by osteophytes, were improved with anterior approach . Ossified or deformed OPLL, unstable vertebral with stenosis ,OPLL or OYL with cervical meandearing (swan-neck) were improved with Combined anterior and posterior approach.
Keywords: cervical spondylotic mylopathy, anterior cervical diskectomy and fusion, corpectomy.
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Sah S, Wang L, Dahal M, Acharya P, Dwivedi R. Surgical management of cervical spondylotic myelopathy. JNMA J Nepal Med Assoc 2012; 52:172-177. [PMID: 23591248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Abstract
INTRODUCTION The surgical procedure by the anterior, posterior and combined antero-posterior approaches had applied for the treatment of cervical spondylotic myelopathy. METHODS During the treatment process, all patients were pre-operatively as well post-operatively graded according to Japanese Orthopaedics Association. Several surgical methods such as anterior approach, posterior approach, and combined antero-posterior approach have been addressed for CSM patients, with the choice based on the pathogenesis of the myelopathy. The main indications for surgery were evidence of myelopathy on physical examinations, a JOA score below 13 points help with spinal cord compression observed on plain X-ray, CT scan, MRI studies. RESULTS The pre-operative JOA scores were 7.60±1.23 in laminoplasty, 8.30±1.03 in diskectomy and corpectomy and 7.10±1.20 in combined antero-posterior approach patients. At the follow-up after three months the JOA scores were laminoplasty 13.30±1.30, diskectomy and corpectomy 13.55±1.15 and combined antero-posterior 13.50±1.08. The JOA recovery rate averaged, 61.08±11.25% in laminoplasty, 60.67±10.60% in diskectomy and corpectomy and 64.67±10.72% in combined antero-posterior approach. The high-signal intensity changed to normal in 18 out of 28 and no any kyphotic change and instability were found in cervical spine at the follow up. CONCLUSIONS Patients with OPLL (continuous, segmental and mixed type), stenosis of cervical spinal canal, multilevel cervical spondylosis, large and high ossification of IVDP with stenosis were improved with laminoplasty. Patients with PIVD, CSM with kyphosis, post laminectomy, OPLL herniated type, unstable vertebral alignment, stenosis by osteophytes, were improved with anterior approach. Ossified or deformed OPLL, unstable vertebral with stenosis, OPLL or OYL with cervical meandearing (swan-neck) were improved with Combined anterior and posterior approach.
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Affiliation(s)
- S Sah
- Department of Orthopaedic, Koshi Zonal Hospital, Biratnagar, Koshi, Nepal
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Georgiev I, Acharya P, Schmidt SD, Li Y, Wycuff D, Ofek G, Doria-Rose N, Luongo TS, Yang Y, Zhou T, Donald BR, Mascola JR, Kwong PD. Design of epitope-specific probes for sera analysis and antibody isolation. Retrovirology 2012. [PMCID: PMC3442034 DOI: 10.1186/1742-4690-9-s2-p50] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Acharya P, Luongo TS, Matz J, Schmidt SD, Chuang G, Georgiev I, Kessler P, Yang Y, Chames P, Martin L, Mascola JR, Kwong PD. Structural definition of a novel CD4-induced epitope that is targeted by a single-headed immunoglobulin to effect broad and potent HIV neutralization. Retrovirology 2012. [PMCID: PMC3441789 DOI: 10.1186/1742-4690-9-s2-p346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Acharya P. Operative oral and maxillofacial surgery, 2nd edition. Br Dent J 2011. [DOI: 10.1038/sj.bdj.2011.192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Acharya P. The osteoperiosteal flap: a simplified approach to alveolar bone reconstruction. Br Dent J 2010. [DOI: 10.1038/sj.bdj.2010.1127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Gupta N, Karki P, Sharma S, Shrestha N, Acharya P. Effect of haemodynamic and metabolic predictors on echocardiographic left ventricular mass in non-diabetic hypertensive patients. Kathmandu Univ Med J (KUMJ) 2010; 8:173-178. [PMID: 21209530 DOI: 10.3126/kumj.v8i2.3553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
BACKGROUND Left ventricular hypertrophy is a forerunner of coronary heart disease, congestive cardiac failure, stroke and may also lead to sudden death. Estimation of left ventricular mass by echocardiography offers prognostic information better than the evaluation of traditional cardiovascular risk factors. OBJECTIVE The aim of this study was to determine the relative contributions of haemodynamic and metabolic factors affecting left ventricular mass in non-diabetic patients with essential hypertension. MATERIAL AND METHODS 100 non-diabetic hypertensive patients were taken. The association between age, gender, smoking, alcohol, height, weight, heart rate, clinic blood pressure, fasting blood glucose, lipid profile, haemoglobin, body mass index and stroke volume with LV mass was studied. Left ventricular mass was measured by using standard M-mode echocardiography measurement obtained by way of standard recommended by the American Society of Echocardiography. RESULTS Left ventricular mass was analyzed as a continuous variable. In males body mass index (r = .35, p < .004) and stroke volume(r = -.26, p<.039) were significantly correlated with LV mass. In females body weight was significantly related to left ventricular mass(r = .36, p < .02). The independent association between significant factors and left ventricular mass was assessed by stepwise multivariate logistic regression. Body mass index and systolic blood pressure came as independent determinants of left ventricular mass in all patients. A maximum of 13% of left ventricular mass variability could be explained by these two factors. CONCLUSION In untreated patients with hypertension patient's body mass index and systolic blood pressure are independent predictors of left ventricular mass after adjustment for other haemodynamic and metabolic factors. They explain a maximum of 13% of left ventricular mass variability. More knowledge is needed about factors that may alter cardiac morphology in the evolution of hypertensive patients.
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Affiliation(s)
- N Gupta
- Department of Internal Medicine and Cardiology, BP Koirala Institute of Health Sciences, Dharan, Nepal
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Pandey S, Baral N, Majhi S, Acharya P, Karki P, Shrestha S, Das BKL, Chandra L. Prevalence of the metabolic syndrome in acute myocardial infarction and its impact on hospital outcomes. Int J Diabetes Dev Ctries 2010; 29:52-5. [PMID: 20142868 PMCID: PMC2812750 DOI: 10.4103/0973-3930.53120] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2006] [Accepted: 03/06/2007] [Indexed: 11/04/2022] Open
Abstract
AIMS To ascertain the prevalence of the metabolic syndrome in patients with acute myocardial infarction; to study the impact of the metabolic syndrome on hospital outcomes; and to find out the association of each component of the metabolic syndrome with acute myocardial infarction (AMI). SETTING Coronary care unit, Department of Medicine, B P Koirala Institute of Health Sciences, Dharan, Nepal. DESIGN Hospital-based cross-sectional study. MATERIALS AND METHODS A total of 84 unselected consecutive patients hospitalized with AMI (diagnosed on the basis of WHO criteria) were categorized according to NCEP ATP III criteria. STATISTICAL ANALYSIS Data was analyzed by using the Student's t test and Chi-square test. RESULTS Among the 84 AMI patients, 22 (26.19%) fulfilled the criteria for metabolic syndrome. Patients with the metabolic syndrome were older (86% were >50 years of age) and females (27%) were more affected than males (25%). In-hospital case fatality was higher in patients having the metabolic syndrome (5/22) than in those without the syndrome (3/62). Among the five components of the metabolic syndrome, the triglyceride levels had the highest positive predictive value (62%) in AMI; this was followed by fasting blood glucose levels (55%). CONCLUSION The prevalence of the metabolic syndrome is 26.19%; it is associated with high mortality; among its components, the triglyceride level has the highest positive predictive value in AMI patients.
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Affiliation(s)
- S Pandey
- Department of Biochemistry, BP Koirala Institute of Health Sciences, Dharan, Nepal
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Shrestha NR, Sharma SK, Karki P, Shrestha NK, Acharya P. Echocardiographic Evaluation of Diastolic Function in Asymptomatic Type 2 Diabetes. JNMA J Nepal Med Assoc 2009. [DOI: 10.31729/jnma.185] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
INTRODUCTION:Diabetes mellitus is an established risk factor for congestive cardiac failure in which the diastolic function is impaired earlier than the systolic function and majority of these patients maybe asymptomatic without signs of overt heart failure.METHODS:A cross sectional hospital based study was done which included 100 asymptomatic patients with type 2 diabetes without evidence of coronary artery disease, congestive heart failure, thyroid or overt renal disease. LVDD was evaluated by Doppler echocardiography, which included the valsalva maneuver to unmask the pseudonormal pattern of left ventricular filling. The prevalence of LVDD and the associated risk factors were assessed.RESULTS:LVDD was found in 71 subjects (71%), of whom 60 had impaired relaxation and 11 had a pseudonormal pattern of ventricular filling. Systolic function was normal in all subjects, and there was no correlation between LVDD and indexes of metabolic control. It was also found that age > or =45 years was associated with an almost three times higher risk for the development of diastolic dysfunction in type 2 diabetes. Females were at a two times higher risk of developing diastolic dysfunction than when compared to men. Duration of diabetes > or = two years was associated with a two times higher risk for developing diastolic dysfunction.CONCLUSIONS:LVDD is much more common than previously reported in subjects with well-controlled type 2 diabetes who are free of clinically detectable heart disease. The high prevalence of this phenomenon in this high-risk population suggests that screening for LVDD in type 2 diabetes should include procedures such as the valsalva maneuver to unmask a pseudonormal pattern of ventricular filling.Keywords:diabetes mellitus, diastolic dysfunction, echocardiography, impaired relaxation, pseudonormal
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