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Effects of empagliflozin on progression of chronic kidney disease: a prespecified secondary analysis from the empa-kidney trial. Lancet Diabetes Endocrinol 2024; 12:39-50. [PMID: 38061371 PMCID: PMC7615591 DOI: 10.1016/s2213-8587(23)00321-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Sodium-glucose co-transporter-2 (SGLT2) inhibitors reduce progression of chronic kidney disease and the risk of cardiovascular morbidity and mortality in a wide range of patients. However, their effects on kidney disease progression in some patients with chronic kidney disease are unclear because few clinical kidney outcomes occurred among such patients in the completed trials. In particular, some guidelines stratify their level of recommendation about who should be treated with SGLT2 inhibitors based on diabetes status and albuminuria. We aimed to assess the effects of empagliflozin on progression of chronic kidney disease both overall and among specific types of participants in the EMPA-KIDNEY trial. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA), and included individuals aged 18 years or older with an estimated glomerular filtration rate (eGFR) of 20 to less than 45 mL/min per 1·73 m2, or with an eGFR of 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher. We explored the effects of 10 mg oral empagliflozin once daily versus placebo on the annualised rate of change in estimated glomerular filtration rate (eGFR slope), a tertiary outcome. We studied the acute slope (from randomisation to 2 months) and chronic slope (from 2 months onwards) separately, using shared parameter models to estimate the latter. Analyses were done in all randomly assigned participants by intention to treat. EMPA-KIDNEY is registered at ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and then followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroups of eGFR included 2282 (34·5%) participants with an eGFR of less than 30 mL/min per 1·73 m2, 2928 (44·3%) with an eGFR of 30 to less than 45 mL/min per 1·73 m2, and 1399 (21·2%) with an eGFR 45 mL/min per 1·73 m2 or higher. Prespecified subgroups of uACR included 1328 (20·1%) with a uACR of less than 30 mg/g, 1864 (28·2%) with a uACR of 30 to 300 mg/g, and 3417 (51·7%) with a uACR of more than 300 mg/g. Overall, allocation to empagliflozin caused an acute 2·12 mL/min per 1·73 m2 (95% CI 1·83-2·41) reduction in eGFR, equivalent to a 6% (5-6) dip in the first 2 months. After this, it halved the chronic slope from -2·75 to -1·37 mL/min per 1·73 m2 per year (relative difference 50%, 95% CI 42-58). The absolute and relative benefits of empagliflozin on the magnitude of the chronic slope varied significantly depending on diabetes status and baseline levels of eGFR and uACR. In particular, the absolute difference in chronic slopes was lower in patients with lower baseline uACR, but because this group progressed more slowly than those with higher uACR, this translated to a larger relative difference in chronic slopes in this group (86% [36-136] reduction in the chronic slope among those with baseline uACR <30 mg/g compared with a 29% [19-38] reduction for those with baseline uACR ≥2000 mg/g; ptrend<0·0001). INTERPRETATION Empagliflozin slowed the rate of progression of chronic kidney disease among all types of participant in the EMPA-KIDNEY trial, including those with little albuminuria. Albuminuria alone should not be used to determine whether to treat with an SGLT2 inhibitor. FUNDING Boehringer Ingelheim and Eli Lilly.
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T, Tamori Y, Tamura R, Tamura Y, Tan CHH, Tan EZZ, Tanabe A, Tanabe K, Tanaka A, Tanaka A, Tanaka N, Tang S, Tang Z, Tanigaki K, Tarlac M, Tatsuzawa A, Tay JF, Tay LL, Taylor J, Taylor K, Taylor K, Te A, Tenbusch L, Teng KS, Terakawa A, Terry J, Tham ZD, Tholl S, Thomas G, Thong KM, Tietjen D, Timadjer A, Tindall H, Tipper S, Tobin K, Toda N, Tokuyama A, Tolibas M, Tomita A, Tomita T, Tomlinson J, Tonks L, Topf J, Topping S, Torp A, Torres A, Totaro F, Toth P, Toyonaga Y, Tripodi F, Trivedi K, Tropman E, Tschope D, Tse J, Tsuji K, Tsunekawa S, Tsunoda R, Tucky B, Tufail S, Tuffaha A, Turan E, Turner H, Turner J, Turner M, Tuttle KR, Tye YL, Tyler A, Tyler J, Uchi H, Uchida H, Uchida T, Uchida T, Udagawa T, Ueda S, Ueda Y, Ueki K, Ugni S, Ugwu E, Umeno R, Unekawa C, Uozumi K, Urquia K, Valleteau A, Valletta C, van Erp R, Vanhoy C, Varad V, Varma R, Varughese A, Vasquez P, Vasseur A, Veelken R, Velagapudi C, Verdel K, Vettoretti S, Vezzoli G, Vielhauer V, Viera R, Vilar E, Villaruel S, 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Yamada N, Yamagata K, Yamaguchi M, Yamaji Y, Yamamoto A, Yamamoto S, Yamamoto S, Yamamoto T, Yamanaka A, Yamano T, Yamanouchi Y, Yamasaki N, Yamasaki Y, Yamasaki Y, Yamashita C, Yamauchi T, Yan Q, Yanagisawa E, Yang F, Yang L, Yano S, Yao S, Yao Y, Yarlagadda S, Yasuda Y, Yiu V, Yokoyama T, Yoshida S, Yoshidome E, Yoshikawa H, Young A, Young T, Yousif V, Yu H, Yu Y, Yuasa K, Yusof N, Zalunardo N, Zander B, Zani R, Zappulo F, Zayed M, Zemann B, Zettergren P, Zhang H, Zhang L, Zhang L, Zhang N, Zhang X, Zhao J, Zhao L, Zhao S, Zhao Z, Zhong H, Zhou N, Zhou S, Zhu D, Zhu L, Zhu S, Zietz M, Zippo M, Zirino F, Zulkipli FH. Impact of primary kidney disease on the effects of empagliflozin in patients with chronic kidney disease: secondary analyses of the EMPA-KIDNEY trial. Lancet Diabetes Endocrinol 2024; 12:51-60. [PMID: 38061372 DOI: 10.1016/s2213-8587(23)00322-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND The EMPA-KIDNEY trial showed that empagliflozin reduced the risk of the primary composite outcome of kidney disease progression or cardiovascular death in patients with chronic kidney disease mainly through slowing progression. We aimed to assess how effects of empagliflozin might differ by primary kidney disease across its broad population. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA). Patients were eligible if their estimated glomerular filtration rate (eGFR) was 20 to less than 45 mL/min per 1·73 m2, or 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher at screening. They were randomly assigned (1:1) to 10 mg oral empagliflozin once daily or matching placebo. Effects on kidney disease progression (defined as a sustained ≥40% eGFR decline from randomisation, end-stage kidney disease, a sustained eGFR below 10 mL/min per 1·73 m2, or death from kidney failure) were assessed using prespecified Cox models, and eGFR slope analyses used shared parameter models. Subgroup comparisons were performed by including relevant interaction terms in models. EMPA-KIDNEY is registered with ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroupings by primary kidney disease included 2057 (31·1%) participants with diabetic kidney disease, 1669 (25·3%) with glomerular disease, 1445 (21·9%) with hypertensive or renovascular disease, and 1438 (21·8%) with other or unknown causes. Kidney disease progression occurred in 384 (11·6%) of 3304 patients in the empagliflozin group and 504 (15·2%) of 3305 patients in the placebo group (hazard ratio 0·71 [95% CI 0·62-0·81]), with no evidence that the relative effect size varied significantly by primary kidney disease (pheterogeneity=0·62). The between-group difference in chronic eGFR slopes (ie, from 2 months to final follow-up) was 1·37 mL/min per 1·73 m2 per year (95% CI 1·16-1·59), representing a 50% (42-58) reduction in the rate of chronic eGFR decline. This relative effect of empagliflozin on chronic eGFR slope was similar in analyses by different primary kidney diseases, including in explorations by type of glomerular disease and diabetes (p values for heterogeneity all >0·1). INTERPRETATION In a broad range of patients with chronic kidney disease at risk of progression, including a wide range of non-diabetic causes of chronic kidney disease, empagliflozin reduced risk of kidney disease progression. Relative effect sizes were broadly similar irrespective of the cause of primary kidney disease, suggesting that SGLT2 inhibitors should be part of a standard of care to minimise risk of kidney failure in chronic kidney disease. FUNDING Boehringer Ingelheim, Eli Lilly, and UK Medical Research Council.
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Luo L, Mak KL, Mal J, Khanal SK, Pradhan N. Effect of zero-valent iron nanoparticles on taxonomic composition and hydrogen production from kitchen waste. Bioresour Technol 2023; 387:129578. [PMID: 37506933 DOI: 10.1016/j.biortech.2023.129578] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 06/08/2023] [Revised: 07/20/2023] [Accepted: 07/25/2023] [Indexed: 07/30/2023]
Abstract
This study investigated the effects of varying zero-valent iron (ZVI) (0 to 5,000 mg/L) on fermentative hydrogen (H2) production, metabolic pattern, and taxonomic profile by using kitchen waste as substrate. The study demonstrated that the supplementation of 500 mg ZVI/L resulted in the highest H2 yield (219.68 ± 11.19 mL H2/g-volatile solids (VS)added), which was 19% higher than the control. The metabolic pattern analysis showed that acetic and butyric acid production primarily drove the H2 production. The taxonomic analysis further revealed that Firmicutes (relative abundance (RA): 80-96%) and Clostridium sensu stricto 1 (RA: 68-88%) were the dominant phyla and genera, respectively, during the exponential gas production phase, supporting the observation of accumulation of acetic and butyric acids. These findings suggest that supplementation of ZVI can enhance H2 production from organic waste and significantly influence the metabolic pattern and taxonomic profile, including the metalloenzymes.
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Affiliation(s)
- Lijun Luo
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region.
| | - Ka Lee Mak
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region.
| | - Joyabrata Mal
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj 211004, Uttar Pradesh, India.
| | - Samir Kumar Khanal
- Department of Molecular Biosciences and Bioengineering, University of Hawai'i at Mānoa, Honolulu, HI 96822, USA.
| | - Nirakar Pradhan
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region.
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Pradhan N, Kumar S, Selvasembian R, Rawat S, Gangwar A, Senthamizh R, Yuen YK, Luo L, Ayothiraman S, Saratale GD, Mal J. Emerging trends in the pretreatment of microalgal biomass and recovery of value-added products: A review. Bioresour Technol 2023; 369:128395. [PMID: 36442602 DOI: 10.1016/j.biortech.2022.128395] [Citation(s) in RCA: 1] [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: 09/30/2022] [Revised: 11/20/2022] [Accepted: 11/22/2022] [Indexed: 06/16/2023]
Abstract
Microalgae are a promising source of raw material (i.e., proteins, carbohydrates, lipids, pigments, and micronutrients) for various value-added products and act as a carbon sink for atmospheric CO2. The rigidity of the microalgal cell wall makes it difficult to extract different cellular components for its applications, including biofuel production, food and feed supplements, and pharmaceuticals. To improve the recovery of products from microalgae, pretreatment strategies such as biological, physical, chemical, and combined methods have been explored to improve whole-cell disruption and product recovery efficiency. However, the diversity and uniqueness of the microalgal cell wall make the pretreatment process more species-specific and limit its large-scale application. Therefore, advancing the currently available technologies is required from an economic, technological, and environmental perspective. Thus, this paper provides a state-of-art review of the current trends, challenges, and prospects of sustainable microalgal pretreatment technologies from a microalgae-based biorefinery concept.
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Affiliation(s)
- Nirakar Pradhan
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Hong Kong SAR, China
| | - Sanjay Kumar
- Biofuel Research Laboratory, School of Biochemical Engineering, IIT(BHU) Varanasi, Varanasi, U.P. 221005 India
| | - Rangabhashiyam Selvasembian
- Department of Biotechnology, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur 613401, Tamil Nadu, India
| | - Shweta Rawat
- Biofuel Research Laboratory, School of Biochemical Engineering, IIT(BHU) Varanasi, Varanasi, U.P. 221005 India
| | - Agendra Gangwar
- Biofuel Research Laboratory, School of Biochemical Engineering, IIT(BHU) Varanasi, Varanasi, U.P. 221005 India
| | - R Senthamizh
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, Uttar Pradesh, India
| | - Yuk Kit Yuen
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Hong Kong SAR, China
| | - Lijun Luo
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Hong Kong SAR, China
| | - Seenivasan Ayothiraman
- Department of Biotechnology, National Institute of Technology Andhra Pradesh, Tadepalligudem - 534101, West Godavari Dist, Andhra Prdesh, India
| | - Ganesh Dattatraya Saratale
- Department of Food Science and Biotechnology, Dongguk University, Ilsandong-gu, Goyang-si, Gyeonggido, Seoul 10326, Korea
| | - Joyabrata Mal
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, Uttar Pradesh, India.
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Luo L, Pradhan N. Salinity impact on the metabolic and taxonomic profiles of acid and alkali treated inoculum for hydrogen production from food waste. Bioresour Technol 2022; 362:127815. [PMID: 36031126 DOI: 10.1016/j.biortech.2022.127815] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/16/2022] [Accepted: 08/17/2022] [Indexed: 06/15/2023]
Abstract
This study evaluated the combined impact of salinity (2.5, 13, and 19.3 g NaCl/L) and inoculum pretreatment (acid/alkali) on the genomic and metabolic profiles of mesophilic fermentative bacteria for hydrogen (H2) production from food waste. Experimental results revealed that acid-treated inoculum showed the highest H2 yield (201.12 ± 13.84 mL H2/g of volatile solids added) under medium salinity levels compared to other experimental conditions. A 7-56% increase in H2 yield was observed for pretreated inoculum than untreated inoculum. Genomic analysis and metabolic pattern revealed that the H2 production was mainly through Clostridial-type fermentation under medium to high salinity levels, whereas Enterococcus-type fermentation under low salinity levels. Further, the genomic analysis uncovered that phyla Firmicutes (69.71-96.81%) and genus Clostridium sensu stricto 1 (33.28-94.04%) dominated during the exponential gas production phase. Overall, this study showed the significance of inoculum pretreatment for the bioconversion of food waste at different salinity levels.
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Affiliation(s)
- Lijun Luo
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region
| | - Nirakar Pradhan
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region.
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Sriram S, Wong JWC, Pradhan N. Recent advances in electro-fermentation technology: A novel approach towards balanced fermentation. Bioresour Technol 2022; 360:127637. [PMID: 35853590 DOI: 10.1016/j.biortech.2022.127637] [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: 05/29/2022] [Revised: 07/11/2022] [Accepted: 07/13/2022] [Indexed: 06/15/2023]
Abstract
Biotransformation of organic substrates via acidogenic fermentation (AF) to high-value products such as C1-C6 carboxylic acids and alcohol serves as platform chemicals for various industrial applications. However, the AF technology suffers from low product titers due to thermodynamic constraints. Recent studies suggest that augmenting AF redox potential can regulate the metabolic pathway and provide seamless electron flow by lowering the activation energy barrier, thus positively influencing the substrate utilization rate, product yield, and speciation. Hence, the augmented AF system with an exogenous electricity supply is termed as electro-fermentation (EF), which has enormous potential to strengthen the fermentation technology domain. Therefore, this critical review systematically discusses the current understanding of EF with a special focus on the extracellular electron transfer mechanism of electroactive bacteria and provides perspectives and research gaps to further improve the technology for green chemical synthesis, sustainable waste management, and circular bio-economy.
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Affiliation(s)
- Saranya Sriram
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Hong Kong, SAR
| | - Jonathan W C Wong
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Hong Kong, SAR; Institute of Bioresource and Agriculture, Hong Kong Baptist University, Kowloon Tong, Hong Kong, SAR.
| | - Nirakar Pradhan
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Hong Kong, SAR; Institute of Bioresource and Agriculture, Hong Kong Baptist University, Kowloon Tong, Hong Kong, SAR.
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Luo L, Sriram S, Johnravindar D, Louis Philippe Martin T, Wong JWC, Pradhan N. Effect of inoculum pretreatment on the microbial and metabolic dynamics of food waste dark fermentation. Bioresour Technol 2022; 358:127404. [PMID: 35654323 DOI: 10.1016/j.biortech.2022.127404] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [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: 04/14/2022] [Revised: 05/26/2022] [Accepted: 05/28/2022] [Indexed: 06/15/2023]
Abstract
This study systematically evaluated and compared different inoculum pretreatment methods to quickly select dark fermentative bacteria from anaerobic sludge for the bioconversion of food waste. The hydrogen (H2) production rate was found to be highest for 'heat + CO2' treated inoculum at 140.75 ± 2.61 mL/L/h compared to control experiments (60.27 ± 2.61 mL/L/h). At the same time, H2 yield was found to be highest for alkali-treated inoculum at 157.25 ± 7.62 mL/g of volatile solids (VS) added compared to control experiments (91.61 ± 1.93 mL/g VS). Analysis of organic acids suggests a Clostridial-type fermentation with acetate (0.52 to 1.60 g/L) and butyrate (1.69 to 2.42 g/L) being the major by-products. The microbial data analysis showed that Firmicutes (63.64-90.39%), Bacteroidota (1.16-21.88%), and Proteobacteria (2.09-9.93%) were dominant at the phylum level, whereas genus-level classification showed Clostridium sensu stricto 1 (6.37-42.63%), Streptococcus (1.87-28.96%), Prevotella (0.57-16.59%), and Enterococcus (0.56-14.51%) dominated under different experimental conditions.
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Affiliation(s)
- Lijun Luo
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region.
| | - Saranya Sriram
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region.
| | - Davidraj Johnravindar
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region.
| | - Thomas Louis Philippe Martin
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region
| | - Jonathan W C Wong
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region; Institute of Bioresource and Agriculture, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region.
| | - Nirakar Pradhan
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region; Institute of Bioresource and Agriculture, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region.
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Shivakumar SVBY, Padmapriyadarsini C, Chavan A, Paradkar M, Shrinivasa BM, Gupte A, Dhanasekaran K, Thomas B, Suryavanshi N, Dolla CK, Selvaraju S, Kinikar A, Gaikwad S, Kohli R, Sivaramakrishnan GN, Pradhan N, Hanna LE, Kulkarni V, DeLuca A, Cox SR, Murali L, Thiruvengadam K, Raskar S, Ramachandran G, Golub JE, Gupte N, Mave V, Swaminathan S, Gupta A, Bollinger RC. Concomitant pulmonary disease is common among patients with extrapulmonary TB. Int J Tuberc Lung Dis 2022; 26:341-347. [PMID: 35351239 PMCID: PMC8982647 DOI: 10.5588/ijtld.21.0501] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND : Microbiologic screening of extrapulmonary TB (EPTB) patients could inform recommendations for aerosol precautions and close contact prophylaxis. However, this is currently not routinely recommended in India. Therefore, we estimated the proportion of Indian patients with EPTB with microbiologic evidence of pulmonary TB (PTB). METHODS : We characterized baseline clinical, radiological and sputum microbiologic data of 885 adult and pediatric TB patients in Chennai and Pune, India, between March 2014 and November 2018. RESULTS : Of 277 patients with EPTB, enhanced screening led to the identification of 124 (45%) with concomitant PTB, including 53 (19%) who reported a cough >2 weeks; 158 (63%) had an abnormal CXR and 51 (19%) had a positive sputum for TB. Of 70 participants with a normal CXR and without any cough, 14 (20%) had a positive sputum for TB. Overall, the incremental yield of enhanced screening of patients with EPTB to identify concomitant PTB disease was 14% (95% CI 12–16). CONCLUSIONS : A high proportion of patients classified as EPTB in India have concomitant PTB. Our results support the need for improved symptom and CXR screening, and recommends routine sputum TB microbiology screening of all Indian patients with EPTB.
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Affiliation(s)
| | - C Padmapriyadarsini
- Indian Council of Medical Research-National Institute for Research in Tuberculosis, Chennai, India
| | - A Chavan
- Johns Hopkins India, Pune, India, Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, India
| | - M Paradkar
- Johns Hopkins India, Pune, India, Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, India
| | - B M Shrinivasa
- Indian Council of Medical Research-National Institute for Research in Tuberculosis, Chennai, India
| | - A Gupte
- Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - K Dhanasekaran
- Indian Council of Medical Research-National Institute for Research in Tuberculosis, Chennai, India
| | - B Thomas
- Indian Council of Medical Research-National Institute for Research in Tuberculosis, Chennai, India
| | - N Suryavanshi
- Johns Hopkins India, Pune, India, Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, India, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - C K Dolla
- Indian Council of Medical Research-National Institute for Research in Tuberculosis, Chennai, India
| | - S Selvaraju
- Indian Council of Medical Research-National Institute for Research in Tuberculosis, Chennai, India
| | - A Kinikar
- Byramjee Jeejeebhoy Government Medical College, Pune, India
| | - S Gaikwad
- Byramjee Jeejeebhoy Government Medical College, Pune, India
| | - R Kohli
- Johns Hopkins India, Pune, India, Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, India
| | - G N Sivaramakrishnan
- Indian Council of Medical Research-National Institute for Research in Tuberculosis, Chennai, India
| | - N Pradhan
- Johns Hopkins India, Pune, India, Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, India
| | - L E Hanna
- Indian Council of Medical Research-National Institute for Research in Tuberculosis, Chennai, India
| | - V Kulkarni
- Johns Hopkins India, Pune, India, Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, India
| | - A DeLuca
- Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - S R Cox
- Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - L Murali
- District Tuberculosis Office, Thiruvallur, India
| | - K Thiruvengadam
- Indian Council of Medical Research-National Institute for Research in Tuberculosis, Chennai, India
| | - S Raskar
- Johns Hopkins India, Pune, India, Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, India
| | - G Ramachandran
- Indian Council of Medical Research-National Institute for Research in Tuberculosis, Chennai, India
| | - J E Golub
- Johns Hopkins School of Medicine, Baltimore, MD, USA, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - N Gupte
- Johns Hopkins India, Pune, India, Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, India, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - V Mave
- Johns Hopkins India, Pune, India, Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune, India, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | | | - A Gupta
- Johns Hopkins School of Medicine, Baltimore, MD, USA, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - R C Bollinger
- Johns Hopkins School of Medicine, Baltimore, MD, USA, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
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Sahoo BK, Ghosh B, Jha PK, Pankaj PK, Kushwaha SK, Chakraborty B, Manjhi KK, Pradhan N. Effect of Different Size Fractions on Coal Properties. Coke Chem 2022. [DOI: 10.3103/s1068364x21080068] [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: 11/30/2022]
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Selvasembian R, Mal J, Rani R, Sinha R, Agrahari R, Joshua I, Santhiagu A, Pradhan N. Recent progress in microbial fuel cells for industrial effluent treatment and energy generation: Fundamentals to scale-up application and challenges. Bioresour Technol 2022; 346:126462. [PMID: 34863847 DOI: 10.1016/j.biortech.2021.126462] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [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: 09/25/2021] [Revised: 11/24/2021] [Accepted: 11/26/2021] [Indexed: 06/13/2023]
Abstract
Microbial fuel cells (MFCs) technology have the potential to decarbonize electricity generation and offer an eco-friendly route for treating a wide range of industrial effluents from power generation, petrochemical, tannery, brewery, dairy, textile, pulp/paper industries, and agro-industries. Despite successful laboratory-scale studies, several obstacles limit the MFC technology for real-world applications. This review article aimed to discuss the most recent state-of-the-art information on MFC architecture, design, components, electrode materials, and anodic exoelectrogens to enhance MFC performance and reduce cost. In addition, the article comprehensively reviewed the industrial effluent characteristics, integrating conventional technologies with MFCs for advanced resource recycling with a particular focus on the simultaneous bioelectricity generation and treatment of various industrial effluents. Finally, the article discussed the challenges, opportunities, and future perspectives for the large-scale applications of MFCs for sustainable industrial effluent management and energy recovery.
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Affiliation(s)
- Rangabhashiyam Selvasembian
- Department of Biotechnology, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613401, Tamilnadu, India
| | - Joyabrata Mal
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Uttar Pradesh, India
| | - Radha Rani
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Uttar Pradesh, India
| | - Rupika Sinha
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Uttar Pradesh, India
| | - Roma Agrahari
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Uttar Pradesh, India
| | - Ighalo Joshua
- Department of Chemical Engineering, Nnamdi Azikiwe University, Nigeria
| | - Arockiasamy Santhiagu
- School of Biotechnology, National Institute of Technology Calicut, Kozhikode, Kerala, India
| | - Nirakar Pradhan
- Department of Biology, Faculty of Science, Hong Kong Baptist University, Hong Kong SAR, China.
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Pradhan N, d'Ippolito G, Dipasquale L, Esposito G, Panico A, Lens PNL, Fontana A. Kinetic modeling of hydrogen and L-lactic acid production by Thermotoga neapolitana via capnophilic lactic fermentation of starch. Bioresour Technol 2021; 332:125127. [PMID: 33873006 DOI: 10.1016/j.biortech.2021.125127] [Citation(s) in RCA: 3] [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: 01/30/2021] [Revised: 03/29/2021] [Accepted: 03/30/2021] [Indexed: 06/12/2023]
Abstract
This study investigated the feasibility of hydrogen (H2) and L-lactic acid production from starch under capnophilic lactic fermentation (CLF) conditions by using Thermotoga neapolitana. Batch experiments were performed in 120 mL serum bottles and a 3 L pH-controlled continuous stirred-tank reactors (CSTR) system with potato and wheat starch as the substrates. A H2 yield of 3.34 (±0.17) and 2.79 (±0.17) mol H2/mol of glucose eq. was achieved with, respectively, potato and wheat starch. In the presence of CO2, L-lactic acid production by the acetyl-CoA carboxylation was significantly higher for the potato starch (0.88 ± 0.39 mol lactic acid/mol glucose eq.) than wheat starch (0.33 ± 0.11 mol lactic acid/mol glucose eq.). A kinetic model was applied to simulate and predict the T. neapolitana metabolic profile and bioreactor performance under CLF conditions. The CLF-based starch fermentation suggests a new direction to biotransform agri-food waste into biofuels and valuable biochemicals.
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Affiliation(s)
- Nirakar Pradhan
- Institute of Biomolecular Chemistry, National Research Council, Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy; Department of Biology, Faculty of Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong Special Administrative Region.
| | - Giuliana d'Ippolito
- Institute of Biomolecular Chemistry, National Research Council, Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy.
| | - Laura Dipasquale
- Institute of Biomolecular Chemistry, National Research Council, Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy
| | - Giovanni Esposito
- Department of Civil, Architectural and Environmental Engineering, University of Napoli "Federico II", Via Claudio 21, 80125 Napoli, Italy.
| | - Antonio Panico
- Department of Engineering, University of Campania "Luigi Vanvitelli", via Roma 29, 81031 Aversa, Italy.
| | - Piet N L Lens
- UNESCO-IHE Institute for Water Education, Westvest 7, 2611-AX Delft, the Netherlands.
| | - Angelo Fontana
- Institute of Biomolecular Chemistry, National Research Council, Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy; Department of Biology, University of Napoli "Federico II", Via Cupa Nuova Cinthia 21, 80126 Napoli, Italy.
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12
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Shrestha A, Mudbari J, Tamrakar SR, Pradhan N, Makaju R, Karki S. A Rare Case of Large Left Lateral Wall Vaginal Myoma. Kathmandu Univ Med J (KUMJ) 2021; 19:396-398. [PMID: 36254433] [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: 06/16/2023]
Abstract
Vaginal leiomyomas are rare, they are uncommon benign tumor with variable clinical presentation. They usually present as a mass per vaginum or dyspareunia or pressure symptoms on the neighbouring structures. We present a case of 47 years lady with mass per vaginum and difficulty in walking and chronic pelvic pain. Her clinical findings suggested a large mass in the left vaginal wall, the mass was approximately 12 x 10 cm in size hindering the visualization of the cervix. Her ultrasonography showed bulky uterus with mass occupying the cervix. This finding was not correlating with the clinical findings. Magnetic resonance imaging (MRI) was done and it was reported as mass lesion in pelvis separate from the cervix abutting the rectum posteriorly. Ultrasonography (USG) guided biopsy was done which was reported as Leiomyoma. She underwent vaginal myomectomy and was confirmed in histopathology as Leiomyoma. A leiomyoma is a smooth muscle tumor that arises from the muscular part of the uterus and rarely seen in the vaginal wall.
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Affiliation(s)
- A Shrestha
- Department of Obstetrics and Gynecology, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - J Mudbari
- Department of Obstetrics and Gynecology, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - S R Tamrakar
- Department of Obstetrics and Gynecology, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - N Pradhan
- Department of Obstetrics and Gynecology, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - R Makaju
- Department of Pathology, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - S Karki
- Department of Radiology, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
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Cox SR, Gupte AN, Thomas B, Gaikwad S, Mave V, Padmapriyadarsini C, Sahasrabudhe TR, Kadam D, Gupte N, Hanna LE, Kagal A, Paradkar M, Thiruvengadam K, Jain D, Atre S, Sekar K, Raskar S, Shivakumar SVBY, Santhappan R, Deshmukh S, Pradhan N, Kulkarni V, Kakrani A, Barthwal MS, Sawant T, DeLuca A, Suryavanshi N, Chander G, Bollinger R, Golub JE, Gupta A. Unhealthy alcohol use independently associated with unfavorable TB treatment outcomes among Indian men. Int J Tuberc Lung Dis 2021; 25:182-190. [PMID: 33688806 DOI: 10.5588/ijtld.20.0778] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND: Approximately 10% of incident TB cases worldwide are attributable to alcohol. However, evidence associating alcohol with unfavorable TB treatment outcomes is weak.METHODS: We prospectively evaluated men (≥18 years) with pulmonary TB in India for up to 24 months to investigate the association between alcohol use and treatment outcomes. Unhealthy alcohol use was defined as a score of ≥4 on the Alcohol Use Disorders Identification Test-Concise (AUDIT-C) scale at entry. Unfavorable TB treatment outcomes included failure, recurrence, and all-cause mortality, analyzed as composite and independent endpoints.RESULTS: Among 751 men, we identified unhealthy alcohol use in 302 (40%). Median age was 39 years (IQR 28-50); 415 (55%) were underweight (defined as a body mass index [BMI] <18.5 kg/m²); and 198 (26%) experienced an unfavorable outcome. Unhealthy alcohol use was an independent risk factor for the composite unfavorable outcome (adjusted incidence rate ratio [aIRR] 1.47, 95% CI 1.05-2.06; P = 0.03) and death (aIRR 1.90, 95% CI 1.08-3.34; P = 0.03), specifically. We found significant interaction between AUDIT-C and BMI; underweight men with unhealthy alcohol use had increased risk of unfavorable outcomes (aIRR 2.22, 95% CI 1.44-3.44; P < 0.001) compared to men with BMI ≥18.5 kg/m² and AUDIT-C <4.CONCLUSION: Unhealthy alcohol use was independently associated with unfavorable TB treatment outcomes, highlighting the need for integrating effective alcohol interventions into TB care.
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Affiliation(s)
- S R Cox
- Johns Hopkins University (JHU), School of Medicine, Baltimore, USA
| | - A N Gupte
- Johns Hopkins University (JHU), School of Medicine, Baltimore, USA
| | - B Thomas
- National Institute of Research in Tuberculosis (NIRT), Chennai
| | - S Gaikwad
- Byramjee Jeejeebhoy Government Medical College (BJGMC) and Sassoon General Hospital, Pune
| | - V Mave
- Johns Hopkins University (JHU), School of Medicine, Baltimore, USA, BJGMC Clinical Research Site, Pune
| | | | - T R Sahasrabudhe
- Dr DY Patil Medical College Hospital and Research Centre, Dr DY Patil Vidyapeeth, Pune
| | - D Kadam
- Byramjee Jeejeebhoy Government Medical College (BJGMC) and Sassoon General Hospital, Pune
| | - N Gupte
- Johns Hopkins University (JHU), School of Medicine, Baltimore, USA, BJGMC Clinical Research Site, Pune
| | - L E Hanna
- National Institute of Research in Tuberculosis (NIRT), Chennai
| | - A Kagal
- Byramjee Jeejeebhoy Government Medical College (BJGMC) and Sassoon General Hospital, Pune
| | - M Paradkar
- Johns Hopkins University (JHU), School of Medicine, Baltimore, USA, BJGMC Clinical Research Site, Pune, Johns Hopkins India Private Limited, Pune, India
| | - K Thiruvengadam
- National Institute of Research in Tuberculosis (NIRT), Chennai
| | - D Jain
- BJGMC Clinical Research Site, Pune
| | - S Atre
- Johns Hopkins University (JHU), School of Medicine, Baltimore, USA, Dr DY Patil Medical College Hospital and Research Centre, Dr DY Patil Vidyapeeth, Pune, Johns Hopkins India Private Limited, Pune, India
| | - K Sekar
- National Institute of Research in Tuberculosis (NIRT), Chennai
| | - S Raskar
- Johns Hopkins University (JHU), School of Medicine, Baltimore, USA, BJGMC Clinical Research Site, Pune, Johns Hopkins India Private Limited, Pune, India
| | - S V B Y Shivakumar
- Johns Hopkins University (JHU), School of Medicine, Baltimore, USA, Johns Hopkins India Private Limited, Pune, India
| | - R Santhappan
- National Institute of Research in Tuberculosis (NIRT), Chennai
| | - S Deshmukh
- Johns Hopkins University (JHU), School of Medicine, Baltimore, USA, BJGMC Clinical Research Site, Pune, Johns Hopkins India Private Limited, Pune, India
| | - N Pradhan
- Johns Hopkins University (JHU), School of Medicine, Baltimore, USA, BJGMC Clinical Research Site, Pune, Johns Hopkins India Private Limited, Pune, India
| | - V Kulkarni
- Johns Hopkins University (JHU), School of Medicine, Baltimore, USA, BJGMC Clinical Research Site, Pune, Johns Hopkins India Private Limited, Pune, India
| | - A Kakrani
- Dr DY Patil Medical College Hospital and Research Centre, Dr DY Patil Vidyapeeth, Pune
| | - M S Barthwal
- Dr DY Patil Medical College Hospital and Research Centre, Dr DY Patil Vidyapeeth, Pune
| | - T Sawant
- Dr DY Patil Medical College Hospital and Research Centre, Dr DY Patil Vidyapeeth, Pune
| | - A DeLuca
- Johns Hopkins University (JHU), School of Medicine, Baltimore, USA
| | - N Suryavanshi
- Johns Hopkins University (JHU), School of Medicine, Baltimore, USA, BJGMC Clinical Research Site, Pune, Johns Hopkins India Private Limited, Pune, India
| | - G Chander
- Johns Hopkins University (JHU), School of Medicine, Baltimore, USA
| | - R Bollinger
- Johns Hopkins University (JHU), School of Medicine, Baltimore, USA
| | - J E Golub
- Johns Hopkins University (JHU), School of Medicine, Baltimore, USA
| | - A Gupta
- Johns Hopkins University (JHU), School of Medicine, Baltimore, USA
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Erbaugh JT, Pradhan N, Adams J, Oldekop JA, Agrawal A, Brockington D, Pritchard R, Chhatre A. Global forest restoration and the importance of prioritizing local communities. Nat Ecol Evol 2020; 4:1472-1476. [DOI: 10.1038/s41559-020-01282-2] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 07/20/2020] [Indexed: 11/10/2022]
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Dongol A, Bastakoti R, Pradhan N, Sharma N. Clinical Estimation of Fetal Weight with Reference to Johnson's Formula: An Alternative Solution Adjacent to Sonographic Estimation of Fetal Weight. Kathmandu Univ Med J (KUMJ) 2020; 18:111-116. [PMID: 33594015] [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: 06/12/2023]
Abstract
Background Fetal weight estimation plays a significant role in the antenatal management of high risk pregnancies. It is also an important parameter for predicting the neonatal outcome and informs decision for the mode of intra-partum management of the pregnant women. Among the various methods of prenatal fetal weight estimation, the most commonly used are clinical estimation and sonography. Objective The objective of this study was to compare the accuracy of clinical estimation of fetal weight using Johnson's formula and sonographic estimation with actual birth weight. Method This prospective study was conducted at Dhulikhel Hospital, Kathmandu University Hospital, from January 2017 to August 2018. The study included 335 pregnant women at term gestation. Result The estimation of fetal weight at term pregnancy using Johnson's formula is as effective as sonological method. For clinical method, the fetal weight falls between 95 gm and 183 gm at 95% confidence interval. With respect to ultrasound method, the fetal weight is found to be 45 gm and 132 gm at 95% confidence interval at p value < 0.001. Conclusion Clinical estimation of fetal weight can be utilized as an alternative to sonological estimation in the management of labor and delivery. Johnson's formula is a simple, easy, cost-effective, and universally applicable method to predict fetal birth weight and can be used anywhere by doctors, nurses, midwives and paramedics in centers where ultrasound is not available.
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Affiliation(s)
- A Dongol
- Department of Obstetrics and Gynaecology, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - R Bastakoti
- Department of Obstetrics and Gynaecology, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - N Pradhan
- Department of Obstetrics and Gynaecology, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - N Sharma
- Department of Obstetrics and Gynaecology, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
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Kunwar D, Lamichhane S, Pradhan N, Shrestha B, Khadka S, Gautam K, Risal A. The Study of Burden of Family Caregivers of Patients Living with Psychiatric Disorders in Remote Area of Nepal. Kathmandu Univ Med J (KUMJ) 2020; 18:144-148. [PMID: 33594020] [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: 06/12/2023]
Abstract
Background Family caregivers of psychiatric disorders likely to face burden. There is a paucity of data regarding the caregiver burden in psychiatric disorders in context of Nepal. Objective To study the caregiver burden in families with psychiatric illness and to find association between socio-demographic variables and caregiver burden in families with psychiatric illness. Method This is an analytical cross-sectional study. The participants (n=96) were caregiver of patients visiting outpatient department of two government of Nepal primary health care centers namely, Panchkhal Primary Health Care Center (PHC) Kavre District and Barhabise Health Care Center Sindhupalchowk district. The sample size has been determined by using statistical formula. Family burden assessment schedule (FBIS) was used for the study. Result The majority of the caregivers were females 56.3%. Most of the caregivers were aged below 45 years 54.2%. The large number of participants were single or separated 74%. The mean score of family burden assessment schedule was 27 ± 9.8 (range 0 to 48) with positive rate of 59.4%.Among the objective burden domains disruption of family leisure 61.5% was the most frequently reported burden. The subjective burden was reported in 95%. There were significant differential demographic associations with different domains of caregivers' burden. Conclusion Caregivers of Psychiatric patients experience different kind of burden of care. Our findings highlight the support to the family members to reduce their burden.
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Affiliation(s)
- D Kunwar
- Department of Psychiatry, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - S Lamichhane
- Medical Officer, Ministry of Health, Kathmandu, Nepal
| | - N Pradhan
- Department of Psychiatry, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - B Shrestha
- Department of Psychiatry, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - S Khadka
- Department of Psychiatry, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - K Gautam
- Medical Officer, Ministry of Health, Kathmandu, Nepal
| | - A Risal
- Department of Psychiatry, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
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d'Ippolito G, Landi S, Esercizio N, Lanzilli M, Vastano M, Dipasquale L, Pradhan N, Fontana A. CO 2-Induced Transcriptional Reorganization: Molecular Basis of Capnophillic Lactic Fermentation in Thermotoga neapolitana. Front Microbiol 2020; 11:171. [PMID: 32132982 PMCID: PMC7039931 DOI: 10.3389/fmicb.2020.00171] [Citation(s) in RCA: 8] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 01/24/2020] [Indexed: 11/25/2022] Open
Abstract
Capnophilic lactic fermentation (CLF) is a novel anaplerotic pathway able to convert sugars to lactic acid (LA) and hydrogen using CO2 as carbon enhancer in the hyperthermophilic bacterium Thermotoga neapolitana. In order to give further insights into CLF metabolic networks, we investigated the transcriptional modification induced by CO2 using a RNA-seq approach. Transcriptomic analysis revealed 1601 differentially expressed genes (DEGs) in an enriched CO2 atmosphere over a total of 1938 genes of the T. neapolitana genome. Transcription of PFOR and LDH genes belonging to the CLF pathway was up-regulated by CO2 together with 6-phosphogluconolactonase (6PGL) and 6-phosphogluconate dehydratase (EDD) of the Entner–Doudoroff (ED) pathway. The transcriptomic study also revealed up-regulation of genes coding for the flavin-based enzymes NADH-dependent reduced ferredoxin:NADP oxidoreductase (NFN) and NAD-ferredoxin oxidoreductase (RNF) that control supply of reduced ferredoxin and NADH and allow energy conservation-based sodium translocation through the cell membrane. These results support the hypothesis that CO2 induces rearrangement of the central carbon metabolism together with activation of mechanisms that increase availability of the reducing equivalents that are necessary to sustain CLF. In this view, this study reports a first rationale of the molecular basis of CLF in T. neapolitana and provides a list of target genes for the biotechnological implementation of this process.
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Affiliation(s)
- Giuliana d'Ippolito
- Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry, Italian National Research Council (CNR), Pozzuoli, Italy
| | - Simone Landi
- Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry, Italian National Research Council (CNR), Pozzuoli, Italy
| | - Nunzia Esercizio
- Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry, Italian National Research Council (CNR), Pozzuoli, Italy
| | - Mariamichella Lanzilli
- Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry, Italian National Research Council (CNR), Pozzuoli, Italy
| | - Marco Vastano
- Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry, Italian National Research Council (CNR), Pozzuoli, Italy
| | - Laura Dipasquale
- Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry, Italian National Research Council (CNR), Pozzuoli, Italy
| | - Nirakar Pradhan
- Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry, Italian National Research Council (CNR), Pozzuoli, Italy
| | - Angelo Fontana
- Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry, Italian National Research Council (CNR), Pozzuoli, Italy
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Gupte AN, Selvaraju S, Paradkar M, Danasekaran K, Shivakumar SVBY, Thiruvengadam K, Dolla C, Shivaramakrishnan G, Pradhan N, Kohli R, John S, Raskar S, Jain D, Momin A, Subramanian B, Gaikwad A, Lokhande R, Suryavanshi N, Gupte N, Salvi S, Murali L, Checkley W, Golub JE, Bollinger R, Chandrasekaran P, Mave V, Gupta A. Respiratory health status is associated with treatment outcomes in pulmonary tuberculosis. Int J Tuberc Lung Dis 2020; 23:450-457. [PMID: 31064624 DOI: 10.5588/ijtld.18.0551] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
<sec id="st1"> <title>BACKGROUND</title> The association between respiratory impairment and tuberculosis (TB) treatment outcomes is not clear. </sec> <sec id="st2"> <title>METHODS</title> We prospectively evaluated respiratory health status, measured using the Saint George's Respiratory Questionnaire (SGRQ), in a cohort of new adult pulmonary TB cases during and up to 18 months following treatment in India. Associations between total SGRQ scores and poor treatment outcomes of failure, recurrence and all-cause death were measured using multivariable Poisson regression. </sec> <sec id="st3"> <title>RESULTS</title> We enrolled 455 participants contributing 619 person-years at risk; 39 failed treatment, 23 had recurrence and 16 died. The median age was 38 years (interquartile range 26-49); 147 (32%) ever smoked. SGRQ scores at treatment initiation were predictive of death during treatment (14% higher risk per 4-point increase in baseline SGRQ scores, 95%CI 2-28, P = 0.01). Improvement in SGRQ scores during treatment was associated with a lower risk of failure (1% lower risk for every per cent improvement during treatment, 95%CI 1-2, P = 0.05). Clinically relevant worsening in SGRQ scores following successful treatment was associated with a higher risk of recurrence (15% higher risk per 4-point increase scores, 95%CI 4-27, P = 0.004). </sec> <sec id="st4"> <title>CONCLUSION</title> Impaired respiratory health status was associated with poor TB treatment outcomes. The SGRQ may be used to monitor treatment response and predict the risk of death in pulmonary TB. </sec>.
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Affiliation(s)
- A N Gupte
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - S Selvaraju
- National Institute for Research in Tuberculosis, Chennai
| | - M Paradkar
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune
| | - K Danasekaran
- National Institute for Research in Tuberculosis, Chennai
| | | | | | - C Dolla
- National Institute for Research in Tuberculosis, Chennai
| | | | - N Pradhan
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune
| | - R Kohli
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune
| | - S John
- National Institute for Research in Tuberculosis, Chennai
| | - S Raskar
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune
| | - D Jain
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune
| | - A Momin
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune
| | - B Subramanian
- National Institute for Research in Tuberculosis, Chennai
| | - A Gaikwad
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune
| | - R Lokhande
- Byramjee Jeejeebhoy Government Medical College and Sassoon General Hospitals, Pune
| | - N Suryavanshi
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune
| | - N Gupte
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - S Salvi
- Chest Research Foundation, Pune, India
| | - L Murali
- National Institute for Research in Tuberculosis, Chennai
| | - W Checkley
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - J E Golub
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - R Bollinger
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | - V Mave
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - A Gupta
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Deshmukh S, Atre S, Chavan A, Raskar S, Sawant T, Mave V, Gupte N, Gaikwad S, Sahasrabudhe T, Barthwal M, Kakrani A, Kagal A, Gupta A, Bharadwaj R, Pradhan N, Dharmshale S, Golub J. Assessment of the Xpert assay among adult pulmonary tuberculosis suspects with and without diabetes mellitus. Int J Tuberc Lung Dis 2020; 24:113-117. [DOI: 10.5588/ijtld.19.0239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING: Pune and Pimpri-Chinchwad Municipal Corporation area, Maharashtra State, India.OBJECTIVE: To assess the sensitivity and specificity of the Xpert® MTB/RIF assay among adults with suspected pulmonary tuberculosis (PTB) and with or without diabetes
(DM).DESIGN: As part of a prospective cohort study, we screened 2359 adults presumed to have PTB with no history of TB. All individuals underwent testing for two sputum smears, culture, Xpert, glycated haemoglobin and fasting blood sugar. We calculated sensitivity and specificity
of Xpert by comparing it with TB sputum culture result as a gold standard.RESULTS: Among screened individuals, 483 (20%) were diagnosed with DM and 1153 (49%) with pre-DM; 723 (31%) had no DM. Overall sensitivity of Xpert was 96% (95%CI 95–97) and specificity was 91% (95%CI
89–93). Xpert sensitivity was significantly higher among DM group (98%) than in the ‘No DM' (95%; P < 0.01) and pre-DM (96%; P < 0.05) groups. Among sputum smear-negative individuals, Xpert sensitivity was higher in the DM group than in the No DM (92% vs. 82%;
P = 0.054) and pre-DM group (92% vs. 82%; P = 0.037).CONCLUSION: High sensitivity and specificity of Xpert underscores the need for its rapid scale up for the early detection of TB in settings with a high dual burden of TB and DM.
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Affiliation(s)
- S. Deshmukh
- Byramjee-Jeejeebhoy Medical College Clinical Research Site, Pune, India, Johns Hopkins University, Centre for Clinical Global Health Education, Baltimore, MD, USA
| | - S. Atre
- Johns Hopkins University, Centre for Clinical Global Health Education, Baltimore, MD, USA, Dr D Y Patil Medical College Hospital and Research Centre, Dr D Y Patil Vidyapeeth, Pune, India
| | - A. Chavan
- Byramjee-Jeejeebhoy Medical College Clinical Research Site, Pune, India
| | - S. Raskar
- Byramjee-Jeejeebhoy Medical College Clinical Research Site, Pune, India
| | - T. Sawant
- Dr D Y Patil Medical College Hospital and Research Centre, Dr D Y Patil Vidyapeeth, Pune, India
| | - V. Mave
- Byramjee-Jeejeebhoy Medical College Clinical Research Site, Pune, India, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - N. Gupte
- Byramjee-Jeejeebhoy Medical College Clinical Research Site, Pune, India, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - S. Gaikwad
- Byramjee-Jeejeebhoy Government Medical College, Pune India
| | - T. Sahasrabudhe
- Dr D Y Patil Medical College Hospital and Research Centre, Dr D Y Patil Vidyapeeth, Pune, India
| | - M. Barthwal
- Dr D Y Patil Medical College Hospital and Research Centre, Dr D Y Patil Vidyapeeth, Pune, India
| | - A. Kakrani
- Dr D Y Patil Medical College Hospital and Research Centre, Dr D Y Patil Vidyapeeth, Pune, India
| | - A. Kagal
- Byramjee-Jeejeebhoy Government Medical College, Pune India
| | - A. Gupta
- Johns Hopkins University, Centre for Clinical Global Health Education, Baltimore, MD, USA, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - R. Bharadwaj
- Byramjee-Jeejeebhoy Government Medical College, Pune India
| | - N. Pradhan
- Byramjee-Jeejeebhoy Medical College Clinical Research Site, Pune, India
| | - S. Dharmshale
- Byramjee-Jeejeebhoy Government Medical College, Pune India
| | - J. Golub
- Johns Hopkins School of Medicine, Baltimore, MD, USA
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Panda BB, Mohanty I, Rath A, Pradhan N, Hazra RK. Perennial malaria transmission and its association with rainfall at Kalahandi district of Odisha, Eastern India: A retrospective analysis. Trop Biomed 2019; 36:610-619. [PMID: 33597483] [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: 06/12/2023]
Abstract
India contributes substantially to global malaria incidents. Vector dynamics is the significant determinant of malaria risk. Hence, knowledge on the interaction between rainfall, malaria cases and malaria vector density can be very useful for controlling malaria transmission. Kalahandi was screened for malaria cases, Anopheline vector density and their temporal relationship with rainfall. Epidemiological data was obtained from National Vector Borne Disease Control Programme, Odisha, India. Three years vector population study was carried out. Rainfall data was obtained from a database maintained by the Govt. of Odisha and was analysed using Univariate ANOVA and Pearson correlation co-efficient tests using R-prog. Malaria was found to be prevalent throughout the year attaining peak between July to August and another peak in December, amidst which the clinical malaria cases being recorded implied highest incidents in the month of July. The results estimated the seasonality of the population of An. culicifacies, An. fluviatilis and An. annularis over the region and determined the influence of rainfall on the vector population dynamics. Simple linear regression analysis suggested that at one month lag monthly rainfall (P=0.0007) was a significant meteorological factor. Rainfall seemed to be one of the best malaria predictors because of its positive correlation with proliferation of malaria cases in conjunction with An. culicifacies density making malaria a serious health issue in Kalahandi.
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Affiliation(s)
- B B Panda
- Regional Medical Research Centre (ICMR), Nalco Square, Chandrasekharpur, Bhubaneswar-751023, India
| | - I Mohanty
- Regional Medical Research Centre (ICMR), Nalco Square, Chandrasekharpur, Bhubaneswar-751023, India
| | - A Rath
- Regional Medical Research Centre (ICMR), Nalco Square, Chandrasekharpur, Bhubaneswar-751023, India
- KIIT School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar-751024, India
| | - N Pradhan
- Regional Medical Research Centre (ICMR), Nalco Square, Chandrasekharpur, Bhubaneswar-751023, India
- KIIT School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar-751024, India
| | - R K Hazra
- Regional Medical Research Centre (ICMR), Nalco Square, Chandrasekharpur, Bhubaneswar-751023, India
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Gupte AN, Mave V, Meshram S, Lokhande R, Kadam D, Dharmshale S, Bharadwaj R, Kagal A, Pradhan N, Deshmukh S, Atre S, Sahasrabudhe T, Barthwal M, Meshram S, Kakrani A, Kulkarni V, Raskar S, Suryavanshi N, Shivakoti R, Chon S, Selvin E, Gupte N, Gupta A, Golub JE. Trends in HbA1c levels and implications for diabetes screening in tuberculosis cases undergoing treatment in India. Int J Tuberc Lung Dis 2019; 22:800-806. [PMID: 30041729 DOI: 10.5588/ijtld.18.0026] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
SETTING The optimal timing of screening for diabetes mellitus (DM) among tuberculosis (TB) cases is unclear due to the possibility of stress hyperglycemia. DESIGN We evaluated adult (18 years) pulmonary TB cases at treatment initiation as well as at 3 months, 6 months and 12 months. DM was identified by self-report (known DM) or glycated hemoglobin (HbA1c) 6.5% (new DM). Trends in HbA1c levels during treatment were assessed using non-parametric tests. RESULTS Of the 392 participants enrolled, 75 (19%) had DM, 30 (40%) of whom had new DM. Of the 45 participants with known DM, respectively 37 (82%) and 40 (89%) received medication to lower glucose levels at treatment initiation and completion; one participant with new DM initiated glucose-lowering medication during follow-up. The median HbA1c level in participants with known, new and no DM was respectively 10.1% (interquartile range [IQR] 8.3-11.6), 8.5% (IQR 6.7-11.5) and 5.6% (IQR 5.3-5.9) at treatment initiation, and 8.7% (IQR 6.8-11.3), 7.1% (IQR 5.8-9.5) and 5.3% (IQR 5.1-5.6) at treatment completion (P < 0.001). Overall, 5 (12%) with known and 13 (43%) with new DM at treatment initiation had reverted to HbA1c < 6.5% by treatment completion (P = 0.003); the majority of reversions occurred during the first 3 months, with no significant reversions beyond 6 months. CONCLUSION HbA1c levels declined with anti-tuberculosis treatment. Repeat HbA1c testing at treatment completion could reduce the risk of misdiagnosis of DM.
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Affiliation(s)
- A N Gupte
- Johns Hopkins University School of Medicine, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - V Mave
- Johns Hopkins University School of Medicine
| | - S Meshram
- Byramjee Jeejeebhoy Government Medical College and Sassoon General Hospitals
| | - R Lokhande
- Byramjee Jeejeebhoy Government Medical College and Sassoon General Hospitals
| | - D Kadam
- Byramjee Jeejeebhoy Government Medical College and Sassoon General Hospitals
| | - S Dharmshale
- Byramjee Jeejeebhoy Government Medical College and Sassoon General Hospitals
| | - R Bharadwaj
- Byramjee Jeejeebhoy Government Medical College and Sassoon General Hospitals
| | - A Kagal
- Byramjee Jeejeebhoy Government Medical College and Sassoon General Hospitals
| | - N Pradhan
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune
| | - S Deshmukh
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune
| | - S Atre
- Dr D Y Patil Medical College, Hospital and Research Centre, Dr D Y Patil Vidyapeeth, Pimpri, Pune, India
| | - T Sahasrabudhe
- Dr D Y Patil Medical College, Hospital and Research Centre, Dr D Y Patil Vidyapeeth, Pimpri, Pune, India
| | - M Barthwal
- Dr D Y Patil Medical College, Hospital and Research Centre, Dr D Y Patil Vidyapeeth, Pimpri, Pune, India
| | - S Meshram
- Dr D Y Patil Medical College, Hospital and Research Centre, Dr D Y Patil Vidyapeeth, Pimpri, Pune, India
| | - A Kakrani
- Dr D Y Patil Medical College, Hospital and Research Centre, Dr D Y Patil Vidyapeeth, Pimpri, Pune, India
| | - V Kulkarni
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune
| | - S Raskar
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune
| | - N Suryavanshi
- Byramjee Jeejeebhoy Government Medical College-Johns Hopkins University Clinical Research Site, Pune
| | | | - S Chon
- Johns Hopkins University School of Medicine
| | - E Selvin
- Johns Hopkins University School of Medicine
| | - N Gupte
- Johns Hopkins University School of Medicine
| | - A Gupta
- Johns Hopkins University School of Medicine, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - J E Golub
- Johns Hopkins University School of Medicine, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
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Shivakumar SVBY, Chandrasekaran P, Kumar AMV, Paradkar M, Dhanasekaran K, Suryavarshini N, Thomas B, Kohli R, Thiruvengadam K, Kulkarni V, Hannah LE, Sivaramakrishnan GN, Pradhan N, Dolla C, Gupte A, Ramachandran G, DeLuca A, Meshram S, Bhardawaj R, Bollinger RC, Golub J, Selvaraj K, Gupte N, Swaminathan S, Mave V, Gupta A. Diabetes and pre-diabetes among household contacts of tuberculosis patients in India: is it time to screen them all? Int J Tuberc Lung Dis 2019; 22:686-694. [PMID: 29862955 DOI: 10.5588/ijtld.17.0598] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING Pre-diabetes mellitus (pre-DM) and DM increase the risk of developing tuberculosis (TB). Screening contacts of TB patients for pre-DM/DM and linking them to care may mitigate the risk of developing TB and improve DM management. OBJECTIVE To measure the prevalence of pre-DM/DM and associated factors among the adult household contacts (HHCs) of pulmonary TB patients. METHODS Between August 2014 and May 2017, adult HHCs of newly diagnosed adult PTB patients in Pune and Chennai, India, had single blood samples tested for glycosylated haemoglobin (HbA1c) at enrolment. DM was defined as previously diagnosed, self-reported DM or HbA1c 6.5%, and pre-DM as HbA1c between 5.7% and 6.4%. Latent tuberculous infection (LTBI) was defined as a positive tuberculin skin test (5 mm induration) or QuantiFERON® Gold In-Tube (0.35 international units/ml). RESULTS Of 652 adult HHCs, 175 (27%) had pre-DM and 64 (10%) had DM. Forty (64%) HHCs were newly diagnosed with DM and 48 (75%) had poor glycaemic control (HbA1c 7.0%). Sixty-eight (22%) pre-DM cases were aged 18-34 years. Age 35 years, body mass index 25 kg/m2, chronic disease and current tobacco smoking were significantly associated with DM among HHCs. CONCLUSIONS Adult HHCs of TB patients in India have a high prevalence of undiagnosed DM, pre-DM and LTBI, putting them at high risk for developing TB. Routine DM screening should be considered among all adult HHCs of TB.
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Affiliation(s)
| | - P Chandrasekaran
- National Institute for Research in Tuberculosis, Chennai, Tamil Nadu, India
| | - A M V Kumar
- International Union Against Tuberculosis and Lung Disease, Paris, France
| | - M Paradkar
- Byramjee Jeejeebhoy Government Medical College, Johns Hopkins University Clinical Research site, Pune, Maharashtra, India
| | - K Dhanasekaran
- National Institute for Research in Tuberculosis, Chennai, Tamil Nadu, India
| | - N Suryavarshini
- Byramjee Jeejeebhoy Government Medical College, Johns Hopkins University Clinical Research site, Pune, Maharashtra, India
| | - B Thomas
- National Institute for Research in Tuberculosis, Chennai, Tamil Nadu, India
| | - R Kohli
- Byramjee Jeejeebhoy Government Medical College, Johns Hopkins University Clinical Research site, Pune, Maharashtra, India
| | - K Thiruvengadam
- National Institute for Research in Tuberculosis, Chennai, Tamil Nadu, India
| | - V Kulkarni
- Byramjee Jeejeebhoy Government Medical College, Johns Hopkins University Clinical Research site, Pune, Maharashtra, India
| | - L E Hannah
- National Institute for Research in Tuberculosis, Chennai, Tamil Nadu, India
| | | | - N Pradhan
- Byramjee Jeejeebhoy Government Medical College, Johns Hopkins University Clinical Research site, Pune, Maharashtra, India
| | - C Dolla
- National Institute for Research in Tuberculosis, Chennai, Tamil Nadu, India
| | - A Gupte
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - G Ramachandran
- National Institute for Research in Tuberculosis, Chennai, Tamil Nadu, India
| | - A DeLuca
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - S Meshram
- Byramjee Jeejeebhoy Government Medical College, Johns Hopkins University Clinical Research site, Pune, Maharashtra, India, Byramjee Jeejeebhoy Government Medical College, Pune, India
| | - R Bhardawaj
- Byramjee Jeejeebhoy Government Medical College, Johns Hopkins University Clinical Research site, Pune, Maharashtra, India, Byramjee Jeejeebhoy Government Medical College, Pune, India
| | - R C Bollinger
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - J Golub
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - K Selvaraj
- Pondicherry Institute of Medical Sciences (PIMS), Puducherry
| | - N Gupte
- Byramjee Jeejeebhoy Government Medical College, Johns Hopkins University Clinical Research site, Pune, Maharashtra, India, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - S Swaminathan
- Indian Council of Medical Research, New Delhi, India
| | - V Mave
- Byramjee Jeejeebhoy Government Medical College, Johns Hopkins University Clinical Research site, Pune, Maharashtra, India, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - A Gupta
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
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Pradhan N, Rath A, Mohanty I, Panda BB, Hazra RK. A comparative study of prevalence and spatial distribution of major Anopheline vector fauna in a hyper- and a hypomalaria endemic district of Odisha, India with special reference to onset of first wet season. Trop Biomed 2019; 36:209-223. [PMID: 33597441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The state's retrospective findings indicate the incidence of malaria deaths, which is more during the onset of first monsoon season. Based upon this fact, our objective was to study the distribution pattern of major Anopheles vectors in two endemic districts viz. Kalahandi and Cuttack of Odisha, India that differ significantly according to malariogenic stratification, under the impact of first monsoon shower. A comparative study of vector abundance, predominance, their habitats, resting site preference, impact of abiotic rhythm (light/dark period) on vector distribution, gonotrophic status as well as sporozoite rate was established in a high and a low endemic district of Odisha, when the degree of malaria transmission elevates to its peak level Anopheles culicifacies was found to be predominant in hyperendemic Kalahandi district while Anopheles subpictus was abundant in hypo-endemic Cuttack district. Both primary vector An. culicifacies and the secondary vector An. subpictus mostly prefer CS (Cattle shed) compared to HD (Human dwelling) in Kalahandi district where as there was slight shifting of resting habitat of An. culicifacies from CS to HD in Cuttack district. Anopheles culicifacies prefers to rest on wall besides objects in Kalahandi while no such site preference was observed in Cuttack district. On the other hand, distribution of An. subpictus was highly influenced by the daily rhythm of light/dark cycle (i.e. day and night) in Cuttack. The gonotrophic condition revealed the high tendency of the predominant vectors towards endophilic resting. The sporozoite rate was 0.66% in Kalahandi and nil in Cuttack district. The proper monitoring of vector prevalence and distribution, at least during the peak transmission period can avert a perpetuated upsurge in malaria.
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Affiliation(s)
- N Pradhan
- KIIT School of Biotechnology, KIIT University, Bhubaneswar, Odisha, India
- Regional Medical Research Centre, Bhubaneswar, Odisha, India
| | - A Rath
- KIIT School of Biotechnology, KIIT University, Bhubaneswar, Odisha, India
- Regional Medical Research Centre, Bhubaneswar, Odisha, India
| | - I Mohanty
- Regional Medical Research Centre, Bhubaneswar, Odisha, India
| | - B B Panda
- Regional Medical Research Centre, Bhubaneswar, Odisha, India
| | - R K Hazra
- Regional Medical Research Centre, Bhubaneswar, Odisha, India
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24
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Mave V, Meshram S, Lokhande R, Kadam D, Dharmshale S, Bharadwaj R, Kagal A, Pradhan N, Deshmukh S, Atre S, Sahasrabudhe T, Barthwal M, Meshram S, Kakrani A, Kulkarni V, Raskar S, Suryavanshi N, Shivakoti R, Chon S, Selvin E, Gupte A, Gupta A, Gupte N, Golub JE. Prevalence of dysglycemia and clinical presentation of pulmonary tuberculosis in Western India. Int J Tuberc Lung Dis 2019; 21:1280-1287. [PMID: 29297449 DOI: 10.5588/ijtld.17.0474] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
SETTING Pune, India. OBJECTIVES To estimate the prevalence and risk factors of pre-diabetes mellitus (DM) and DM, and its associations with the clinical presentation of tuberculosis (TB). DESIGN Screening for DM was conducted among adults (age 18 years) with confirmed TB between December 2013 and January 2017. We used multinomial regression to evaluate the risk factors for pre-DM (glycated hemoglobin [HbA1c] 5.7-6.5% or fasting glucose 100-125 mg/dl) and DM (HbA1c 6.5% or fasting glucose 126 mg/dl or random blood glucose > 200 mg/dl or self-reported DM history/treatment) and the association of dysglycemia with the severity of TB disease. RESULTS Among 1793 participants screened, 890 (50%) had microbiologically confirmed TB. Of these, 33% had pre-DM and 18% had DM; 41% were newly diagnosed. The median HbA1c level among newly diagnosed DM was 7.0% vs. 10.3% among known DM (P < 0.001). DM (adjusted OR [aOR] 4.94, 95%CI 2.33-10.48) and each per cent increase in HbA1c (aOR 1.42, 95%CI 1.01-2.01) was associated with >1+ smear grade or 9 days to TB detection. CONCLUSION Over half of newly diagnosed TB patients had DM or pre-DM. DM and increasing dysglycemia was associated with higher bacterial burden at TB diagnosis, potentially indicating a higher risk of TB transmission to close contacts.
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Affiliation(s)
- V Mave
- Byramjee-Jeejeebhoy Medical College-Johns Hopkins University Clinical Research Site, Pune, India; Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - S Meshram
- Byramjee-Jeejeebhoy Medical College-Johns Hopkins University Clinical Research Site, Pune, India; Byramjee-Jeejeebhoy Government Medical College, Pune, India
| | - R Lokhande
- Byramjee-Jeejeebhoy Medical College-Johns Hopkins University Clinical Research Site, Pune, India; Byramjee-Jeejeebhoy Government Medical College, Pune, India
| | - D Kadam
- Byramjee-Jeejeebhoy Medical College-Johns Hopkins University Clinical Research Site, Pune, India; Byramjee-Jeejeebhoy Government Medical College, Pune, India
| | - S Dharmshale
- Byramjee-Jeejeebhoy Medical College-Johns Hopkins University Clinical Research Site, Pune, India; Byramjee-Jeejeebhoy Government Medical College, Pune, India
| | - R Bharadwaj
- Byramjee-Jeejeebhoy Medical College-Johns Hopkins University Clinical Research Site, Pune, India; Byramjee-Jeejeebhoy Government Medical College, Pune, India
| | - A Kagal
- Byramjee-Jeejeebhoy Medical College-Johns Hopkins University Clinical Research Site, Pune, India; Byramjee-Jeejeebhoy Government Medical College, Pune, India
| | - N Pradhan
- Byramjee-Jeejeebhoy Medical College-Johns Hopkins University Clinical Research Site, Pune, India
| | - S Deshmukh
- Byramjee-Jeejeebhoy Medical College-Johns Hopkins University Clinical Research Site, Pune, India
| | - S Atre
- Dr D Y Patil Medical College, Pune, India
| | | | - M Barthwal
- Dr D Y Patil Medical College, Pune, India
| | - S Meshram
- Dr D Y Patil Medical College, Pune, India
| | - A Kakrani
- Dr D Y Patil Medical College, Pune, India
| | - V Kulkarni
- Byramjee-Jeejeebhoy Medical College-Johns Hopkins University Clinical Research Site, Pune, India
| | - S Raskar
- Byramjee-Jeejeebhoy Medical College-Johns Hopkins University Clinical Research Site, Pune, India
| | - N Suryavanshi
- Byramjee-Jeejeebhoy Medical College-Johns Hopkins University Clinical Research Site, Pune, India
| | - R Shivakoti
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - S Chon
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - E Selvin
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - A Gupte
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - A Gupta
- Byramjee-Jeejeebhoy Medical College-Johns Hopkins University Clinical Research Site, Pune, India; Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - N Gupte
- Byramjee-Jeejeebhoy Medical College-Johns Hopkins University Clinical Research Site, Pune, India; Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - J E Golub
- Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
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Tamrakar SR, Pradhan N, Kayastha S. Learning Curve for Laparoscopic Hysterectomy: An Experience from Kathmandu University Hospital. Nepal j obstet gynaecol 2018. [DOI: 10.3126/njog.v13i3.23427] [Citation(s) in RCA: 1] [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: 11/18/2022] Open
Abstract
Aims: The aim of this study is to assess learning curves for laparoscopic hysterectomies, compare the performance of surgeons and review demographic parameters of the patients, varieties of complications experienced and indications of the procedures.
Methods: A retrospective study was conducted in Kathmandu University Hospital, Kavre of January 1, 2011 to June 30, 2018.
Results: A total of 1849 cases were already performed by mid 2018. Of them, 261 (14.12%) cases were LAVH and TLH cases. Mean duration for laparoscopic hysterectomies (for both LAVH and TLH) was 142.21±43.46 minutes (range 55 to 310 minutes) and one third of the cases performed in a range of 121 to 150 minutes. There is difference in mean duration of operation between surgeons which is statistically significant (p <0.001). Beside one of four surgeons (surgeon B) had significant reduction in mean duration for LAVH surgery (p=0.004). Same surgeon has significant reduction in mean duration for performing TLH (p=0.0047). Of the 261 laparoscopic hysterectomies, 8 cases (3.07%) turned into laparotomy.
Conclusions: Laparoscopic hysterectomies are feasible with reducing mean operating time across the period. These minimal invasive surgeries are safe with low rate of complications and less conversion to open even in our set up.
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26
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Shrestha A, Kayastha B, Pradhan N. Fetomaternal outcome in elevated Glucose Challenge Test and gestational diabetes. Nepal j obstet gynaecol 2018. [DOI: 10.3126/njog.v13i1.21617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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
Aims: To observe the maternal and fetal outcome among those having elevated Glucose Challenge Test (GCT) level and gestational diabetes mellitus (GDM).Methods: Medical record of 15,413 pregnant women booked and delivered between June 2012 and January 2018 were evaluated. GCT was performed by using 50gm glucose and diagnosis of gestational diabetes performed by using the Carpenter Coustan Criteria. Pregnancy outcomes were assessed by the antenatal events, gestation and mode of delivery. Similarly, neonatal outcomes assessed in terms of birth weights, Apgar score, congenital abnormalities, hyperbilirubinaemia, hypoglycaemia and respiratory distress syndrome.Results: The detected incidence of gestational diabetes was 2.35%. With the threshold plasma glucose level at 140 mg/ dl, 1843 women needed to undergo 100g oral glucose tolerance test and 363 women had gestational diabetes.Conclusions: It is very important to find out GDM in pregnancy as it has adverse outcomes which are preventable; it is worthwhile to detect GDM by screening in pregnancy. The 50g GCT is feasible and 100gm OGTT to find out GDM.
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27
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Dipasquale L, Pradhan N, d’Ippolito G, Fontana A. Potential of Hydrogen Fermentative Pathways in Marine Thermophilic Bacteria: Dark Fermentation and Capnophilic Lactic Fermentation in Thermotoga and Pseudothermotoga Species. Grand Challenges in Marine Biotechnology 2018. [DOI: 10.1007/978-3-319-69075-9_6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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28
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Nayak RR, Behera D, Pradhan N, Mishra DK. Temperature Controlled Evolution of Silver Polypods from Biomass Encapsulated Nano-Droplets. J Nanosci Nanotechnol 2018; 18:394-400. [PMID: 29768859 DOI: 10.1166/jnn.2018.14599] [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] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Silver nanoparticles are produced by a novel biosynthesis technique using fungus Penicillium purpurogenum NPMF (MTCC 7356). The biomass when subjected to heat treatment up to 700 °C produces the nanoparticles of silver due to the presence of free carbon which acts as encapsulation for silver nanoparticles. Increase in temperature above 700 °C causes a reduction in concentration of free carbon so that the nanoparticles come close to each other and form clusters in the shape of tetrapods to polypods. The micro-Raman analysis supports the formation of mesoporous carbon with increase in the calcined temperature. The formation of Ag nanostructures has been explained in terms of free energy diagram i.e., the crystal favors more to grow on (100) facet or (110) facet rather than on (111) facet by the addition of silver atoms and thereby, it releases more energy. The release of energy has been confirmed from the differential thermo gravimetric analysis. In fact, it is the dynamics of the minimization of the free energy of the system which governs the reorientation and rearrangement of Ag themselves leading to formation of various types of polypods. A formation mechanism is presented schematically.
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Affiliation(s)
- R R Nayak
- Centre for Lipid Research, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - D Behera
- Department of Physics, Ravenshaw University, Odisha 753003, India
| | - N Pradhan
- CSIR-Institute of Minerals and Materials Technology, Bhubaneswar 751013, India
| | - D K Mishra
- Department of Physics, Institute of Technical Education and Research, Siksha 'O' Anusandhan University, Khandagiri Square, Bhubaneswar 751030, Odisha, India
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Pradhan N, Dipasquale L, d'Ippolito G, Fontana A, Panico A, Pirozzi F, Lens PNL, Esposito G. Model development and experimental validation of capnophilic lactic fermentation and hydrogen synthesis by Thermotoga neapolitana. Water Res 2016; 99:225-234. [PMID: 27166592 DOI: 10.1016/j.watres.2016.04.063] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 02/05/2016] [Revised: 04/26/2016] [Accepted: 04/27/2016] [Indexed: 06/05/2023]
Abstract
The aim of the present study was to develop a kinetic model for a recently proposed unique and novel metabolic process called capnophilic (CO2-requiring) lactic fermentation (CLF) pathway in Thermotoga neapolitana. The model was based on Monod kinetics and the mathematical expressions were developed to enable the simulation of biomass growth, substrate consumption and product formation. The calibrated kinetic parameters such as maximum specific uptake rate (k), semi-saturation constant (kS), biomass yield coefficient (Y) and endogenous decay rate (kd) were 1.30 h(-1), 1.42 g/L, 0.1195 and 0.0205 h(-1), respectively. A high correlation (>0.98) was obtained between the experimental data and model predictions for both model validation and cross validation processes. An increase of the lactate production in the range of 40-80% was obtained through CLF pathway compared to the classic dark fermentation model. The proposed kinetic model is the first mechanistically based model for the CLF pathway. This model provides useful information to improve the knowledge about how acetate and CO2 are recycled back by Thermotoga neapolitana to produce lactate without compromising the overall hydrogen yield.
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Affiliation(s)
- Nirakar Pradhan
- Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Via Di Biasio, 43, 03043, Cassino, FR, Italy; Institute of Biomolecular Chemistry, Italian National Council of Research, Via Campi Flegrei 34, 80078, Pozzuoli, Napoli, Italy; Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, Via Claudio, 21, 80125, Naples, Italy.
| | - Laura Dipasquale
- Institute of Biomolecular Chemistry, Italian National Council of Research, Via Campi Flegrei 34, 80078, Pozzuoli, Napoli, Italy.
| | - Giuliana d'Ippolito
- Institute of Biomolecular Chemistry, Italian National Council of Research, Via Campi Flegrei 34, 80078, Pozzuoli, Napoli, Italy.
| | - Angelo Fontana
- Institute of Biomolecular Chemistry, Italian National Council of Research, Via Campi Flegrei 34, 80078, Pozzuoli, Napoli, Italy.
| | - Antonio Panico
- Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, Via Claudio, 21, 80125, Naples, Italy.
| | - Francesco Pirozzi
- Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, Via Claudio, 21, 80125, Naples, Italy.
| | - Piet N L Lens
- UNESCO-IHE Institute for Water Education, Westvest 7, 2611-AX, Delft, The Netherlands.
| | - Giovanni Esposito
- Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Via Di Biasio, 43, 03043, Cassino, FR, Italy.
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Del Corro E, Botello-Méndez A, Gillet Y, Elias AL, Terrones H, Feng S, Fantini C, Rhodes D, Pradhan N, Balicas L, Gonze X, Charlier JC, Terrones M, Pimenta MA. Atypical Exciton-Phonon Interactions in WS2 and WSe2 Monolayers Revealed by Resonance Raman Spectroscopy. Nano Lett 2016; 16:2363-2368. [PMID: 26998817 DOI: 10.1021/acs.nanolett.5b05096] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Resonant Raman spectroscopy is a powerful tool for providing information about excitons and exciton-phonon coupling in two-dimensional materials. We present here resonant Raman experiments of single-layered WS2 and WSe2 using more than 25 laser lines. The Raman excitation profiles of both materials show unexpected differences. All Raman features of WS2 monolayers are enhanced by the first-optical excitations (with an asymmetric response for the spin-orbit related XA and XB excitons), whereas Raman bands of WSe2 are not enhanced at XA/B energies. Such an intriguing phenomenon is addressed by DFT calculations and by solving the Bethe-Salpeter equation. These two materials are very similar. They prefer the same crystal arrangement, and their electronic structure is akin, with comparable spin-orbit coupling. However, we reveal that WS2 and WSe2 exhibit quite different exciton-phonon interactions. In this sense, we demonstrate that the interaction between XC and XA excitons with phonons explains the different Raman responses of WS2 and WSe2, and the absence of Raman enhancement for the WSe2 modes at XA/B energies. These results reveal unusual exciton-phonon interactions and open new avenues for understanding the two-dimensional materials physics, where weak interactions play a key role coupling different degrees of freedom (spin, optic, and electronic).
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Affiliation(s)
- E Del Corro
- Departamento de Fisica, Universidade Federal de Minas Gerais (UFMG) , Caixa Postal 702, 30123-970 Belo Horizonte, Brazil
| | - A Botello-Méndez
- Institute of Condensed Matter and Nanosciences (IMCN), Université catholique de Louvain (UCL) , Chemin des Etoiles 8, bte L7. 03. 01, 1348 Louvain-la-Neuve, Belgium
| | - Y Gillet
- Institute of Condensed Matter and Nanosciences (IMCN), Université catholique de Louvain (UCL) , Chemin des Etoiles 8, bte L7. 03. 01, 1348 Louvain-la-Neuve, Belgium
| | - A L Elias
- Department of Physics and Center for 2-Dimensional and Layered Materials, Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - H Terrones
- Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute , Troy, New York 12180-3590, United States
| | - S Feng
- Department of Physics and Center for 2-Dimensional and Layered Materials, Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - C Fantini
- Departamento de Fisica, Universidade Federal de Minas Gerais (UFMG) , Caixa Postal 702, 30123-970 Belo Horizonte, Brazil
| | - Daniel Rhodes
- National High Magnetic Field Lab, Florida State University , 1800 E. Paul Dirac Drive, Tallahassee, Florida 32310, United States
| | - N Pradhan
- National High Magnetic Field Lab, Florida State University , 1800 E. Paul Dirac Drive, Tallahassee, Florida 32310, United States
| | - L Balicas
- National High Magnetic Field Lab, Florida State University , 1800 E. Paul Dirac Drive, Tallahassee, Florida 32310, United States
| | - X Gonze
- Institute of Condensed Matter and Nanosciences (IMCN), Université catholique de Louvain (UCL) , Chemin des Etoiles 8, bte L7. 03. 01, 1348 Louvain-la-Neuve, Belgium
| | - J-C Charlier
- Institute of Condensed Matter and Nanosciences (IMCN), Université catholique de Louvain (UCL) , Chemin des Etoiles 8, bte L7. 03. 01, 1348 Louvain-la-Neuve, Belgium
| | - M Terrones
- Department of Physics and Center for 2-Dimensional and Layered Materials, Pennsylvania State University , University Park, Pennsylvania 16802, United States
- Department of Chemistry and Department of Materials Science and Engineering, Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - M A Pimenta
- Departamento de Fisica, Universidade Federal de Minas Gerais (UFMG) , Caixa Postal 702, 30123-970 Belo Horizonte, Brazil
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Abstract
Aims: This was performed to study the characteristics of Pregnancy Related Acute Kidney Injury (PRAKI), its management and outcome in patients at a tertiary level referral centre. Methods: A hospital based prospective observational study was conducted in Tribhuvan University Teaching Hospital (TUTH) over a period of 18 months. All patients diagnosed with PRAKI were included in the study. Patient profiles in terms of age, parity, gestational age were studied along with time of occurrence of PRAKI, preceding event, etiology, management and maternal outcome. Descriptive and univariate analyses were conducted and qualitative variables were expressed as percentages while quantitative variables as means. Results: There were fifteen cases of PRAKI during the study period with incidence of 2.1 per 1000 deliveries. The average age was 25.23± 3.8 years and 9(60%) were primipara. Fourteen (93.3%) developed PRAKI in the postpartum period with 10(66.6%) cases following Lower Segment Caesarian Section (LSCS). The commonest etiology of PRAKI was severe preeclampsia/ Hemolysis, Elevated Liver enzymes, Low Platelet (HELLP) syndrome and pregnancy hemorrhages each consisting 4(26.6%) cases. The stage of Acute Kidney Injury (AKI) according to RIFLE (Risk, Injury, Failure, Loss, ESRD-End Stage Renal Disease) criteria was as follows: risk in 1(6.6%), injury in 3(20%) and failure in 11(73.3%) cases. Hemodialysis was necessary in 12(80%) cases while 3 cases (20%) improved with medical management only. The average duration of hospital stay was 25.2±14.7 days and 7(46.6%) needed ICU admission. Twelve (80%) cases recovered completely while two patients were dialysis dependent at the time of evaluation. There was one death. Conclusions: PRAKI occurred mainly in the postpartum period with severe preeclampsia/HELLP syndrome and hemorrhages as the most common causes. It is associated with high maternal morbidity, prolonged hospital stay and even mortality. Multidisciplinary team management is essential.
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Pradhan N, Dipasquale L, d'Ippolito G, Panico A, Lens PNL, Esposito G, Fontana A. Hydrogen Production by the Thermophilic Bacterium Thermotoga neapolitana. Int J Mol Sci 2015; 16:12578-600. [PMID: 26053393 PMCID: PMC4490462 DOI: 10.3390/ijms160612578] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 05/20/2015] [Accepted: 05/22/2015] [Indexed: 11/18/2022] Open
Abstract
As the only fuel that is not chemically bound to carbon, hydrogen has gained interest as an energy carrier to face the current environmental issues of greenhouse gas emissions and to substitute the depleting non-renewable reserves. In the last years, there has been a significant increase in the number of publications about the bacterium Thermotoga neapolitana that is responsible for production yields of H2 that are among the highest achievements reported in the literature. Here we present an extensive overview of the most recent studies on this hyperthermophilic bacterium together with a critical discussion of the potential of fermentative production by this bacterium. The review article is organized into sections focused on biochemical, microbiological and technical issues, including the effect of substrate, reactor type, gas sparging, temperature, pH, hydraulic retention time and organic loading parameters on rate and yield of gas production.
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Affiliation(s)
- Nirakar Pradhan
- Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Via Di Biasio, 43, 03043 Cassino, FR, Italy.
| | - Laura Dipasquale
- Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy.
| | - Giuliana d'Ippolito
- Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy.
| | - Antonio Panico
- Telematic University Pegaso, piazza Trieste e Trento, 48, 80132 Naples, Italy.
| | - Piet N L Lens
- UNESCO-IHE Institute for Water Education, Westvest 7, 2611-AX Delft, The Netherlands.
| | - Giovanni Esposito
- Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, Via Di Biasio, 43, 03043 Cassino, FR, Italy.
| | - Angelo Fontana
- Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy.
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Priyadarshini E, Pradhan N, Panda P, Mishra B. Biogenic unmodified gold nanoparticles for selective and quantitative detection of cerium using UV–vis spectroscopy and photon correlation spectroscopy (DLS). Biosens Bioelectron 2015; 68:598-603. [DOI: 10.1016/j.bios.2015.01.048] [Citation(s) in RCA: 21] [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: 09/18/2014] [Revised: 01/19/2015] [Accepted: 01/20/2015] [Indexed: 10/24/2022]
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Pradhan N, Habib H, Venkatappa M, Ebbers T, Duboz R, Shipin O. Framework tool for a rapid cumulative effects assessment: case of a prominent wetland in Myanmar. Environ Monit Assess 2015; 187:341. [PMID: 25963760 DOI: 10.1007/s10661-015-4508-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Accepted: 04/07/2015] [Indexed: 06/04/2023]
Abstract
The wetland of focus, Inle Lake, located in central Myanmar, is well known for its unique biodiversity and culture, as well as for ingenious floating garden agriculture. During the last decades, the lake area has seen extensive degradation in terms of water quality, erosion, deforestation, and biodiversity concomitant with a major shift to unsustainable land use. The study was conducted, with an emphasis on water quality, to analyze environmental impacts (effects) changing the ecosystem and to comprehensively evaluate the environmental state of the ecosystem through an innovative Rapid Cumulative Effects Assessment framework tool. The assessment started with a framework-forming Participatory Rural Appraisal (PRA), which quantified and prioritized impacts over space and time. Critically important impacts were assessed for "intra-inter interactions" using the loop analysis simulation. Water samples were analyzed while geographic information system (GIS) and remote sensing were used to identify water pollution hotspots. It was concluded that out of a plethora of impacts, pollution from municipal sources, sedimentation, and effects exerted by floating gardens had the most detrimental impacts, which cumulatively affected the entire ecosystem. The framework tool was designed in a broad sense with a reference to highly needed assessments of poorly studied wetlands where degradation is evident, but scarcely quantified, and where long-term field studies are fraught with security issues and resource unavailability (post-conflict, poor and remote regions, e.g., Afghanistan, Laos, Sudan, etc.).
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Affiliation(s)
- N Pradhan
- WHO Collaborating Center for Water Supply, Waste Disposal and Air Quality, Environmental Engineering and Management Program, Asian Institute of Technology, Pathum Thani, 12120, Thailand
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Pradhan N, Davison M. Tea trolleys and infection control. Anaesthesia 2015; 70:634-5. [DOI: 10.1111/anae.13063] [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: 11/29/2022]
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Tikka SK, Nizamie SH, Goyal N, Pradhan N, Tikka DL, Katshu MZUH. Evaluation of spontaneous dense array gamma oscillatory activity and minor physical anomalies as a composite neurodevelopmental endophenotype in schizophrenia. Int J Dev Neurosci 2014; 40:43-51. [PMID: 25450528 DOI: 10.1016/j.ijdevneu.2014.11.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [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: 09/09/2014] [Revised: 10/14/2014] [Accepted: 11/09/2014] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE Minor physical anomalies (MPAs) and gamma oscillatory activity have been proposed as associated endophenotypes in schizophrenia. Combining these endophenotypes to create a composite endophenotype may help identify those at risk for schizophrenia better. The present study aims to investigate MPAs and gamma oscillatory activity in schizophrenia patients, their unaffected first degree relatives and healthy controls and appreciate whether they can be used together as a composite endophenotype. METHODS This was a cross sectional family study conducted at a tertiary care mental health setup. Ninety participants including schizophrenia patients, their first degree relatives and controls (thirty each) were assessed for MPAs on the Extended Waldrop Scale. All participants underwent an awake, resting 192-channel EEG recording. Spectral power and coherence in 30-100Hz gamma bands were estimated using Welch's averaged periodogram method. One-way ANOVA, chi square test were used for comparing socio-demographic-clinical variables. MANOVA supplemented by one-way ANOVAs (post hoc Tukey HSD) were done for comparison of spectral measures. Pearson's correlation, step-by-step linear discriminant functional and intra-familial correlation analysis were subsequently performed. RESULTS An endophenotype pattern of finding was found for MPAs in the craniofacial region, the total number of MPAs, spectral power in right temporal region on all bands and in the right parietal region in 50-70Hz and 70-100Hz gamma bands. The three groups were most accurately classified when MPA total score, right temporal 30-50Hz gamma power and right occipital 'intra hemispheric' 50-70Hz gamma coherence were considered together than when considered independently. Significant intra familial correlation was seen for MPA total score and right temporal gamma 30-50Hz power. CONCLUSION Composite evaluation of two developmentally linked markers i.e. MPAs and gamma spectral measures may prove useful in categorizing schizophrenia and identifying at-risk individuals.
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Affiliation(s)
- Sai Krishna Tikka
- KS Mani Center for Cognitive Neurosciences and Department of Psychiatry, Central Institute of Psychiatry, Kanke, Ranchi, Jharkhand 834006, India.
| | - S Haque Nizamie
- KS Mani Center for Cognitive Neurosciences and Department of Psychiatry, Central Institute of Psychiatry, Kanke, Ranchi, Jharkhand 834006, India
| | - Nishant Goyal
- KS Mani Center for Cognitive Neurosciences and Department of Psychiatry, Central Institute of Psychiatry, Kanke, Ranchi, Jharkhand 834006, India
| | - N Pradhan
- Department of Psychopharmacology, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka 560029, India
| | - Deyashini Lahiri Tikka
- Department of Clinical Psychology, Central Institute of Psychiatry, Kanke, Ranchi, Jharkhand 834006, India
| | - Mohammad Zia Ul Haq Katshu
- Division of Psychiatry and Applied Psychology, School of Medicine, University of Nottingham, NG7 2TU, United Kingdom
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Carbajal R, Yisfalem A, Pradhan N, Baumstein D, Chaudhari A. Case report: boldo (Peumus boldus) and tacrolimus interaction in a renal transplant patient. Transplant Proc 2014; 46:2400-2. [PMID: 24981811 DOI: 10.1016/j.transproceed.2014.01.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Revised: 12/13/2013] [Accepted: 01/15/2014] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Boldo is an extract of a Chilean tree leave (Peumus boldus mol) that have been traditionally employed in folk medicine. We have presented a case of subtherapeutic tacrolimus levels in a renal transplant patient while taking boldo. In the literature search, no interaction has been reported between boldo and tacrolimus. CASE REPORT A 78-year-old Hispanic man with history of diabetes mellitus, hypertension, and deceased donor renal transplant in 2005 presented to the renal clinic for regular follow-up on September 1, 2010. No complaints were reported and physical examination was unremarkable. Laboratory tests taken on July 26, 2010, were significant for tacrolimus level of <3 ng/mL (measured by liquid chromatography/tandem mass spectrometry) and serum creatinine of 1.2 mg/dL (106 μmol/L). Medications included tacrolimus 2 mg bid and mycophenolate 500 mg bid. On further inquiry, the patient admitted taking herbal medication, boldo 300 mg bid, for the last few weeks. There was no change in his regular medications. He was adherent to his medication. He had been taking tacrolimus from the same company and pharmacy since August 2009. The last dose of boldo was on September 1, 2010. One week after he stopped taking boldo, tacrolimus level was 6.1 ng/mL (9/8/2010) on the same tacrolimus dose of 2 mg bid. Tacrolimus dose was increased to 3 mg bid (9/9/2010), awaiting tacrolimus levels. Subsequent levels (ng/mL) were 8.6 and 9.5, which made us resume the prior tacrolimus dose (2 mg bid). CONCLUSIONS We have reported a case of an allograft renal transplant recipient who presented to the clinic with subtherapeutic levels of tacrolimus while taking the herbal remedy boldo. Tacrolimus levels rose to the intended target after discontinuation of boldo. Although it is a single case report, our observation suggests a possible herb-drug interaction.
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Affiliation(s)
- R Carbajal
- Metropolitan Hospital Center, Department of Nephrology, New York, New York.
| | - A Yisfalem
- Metropolitan Hospital Center, Department of Nephrology, New York, New York
| | - N Pradhan
- Metropolitan Hospital Center, Department of Nephrology, New York, New York
| | - D Baumstein
- Metropolitan Hospital Center, Department of Nephrology, New York, New York
| | - A Chaudhari
- Metropolitan Hospital Center, Department of Nephrology, New York, New York
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Rangaprakash D, Pradhan N. Study of phase synchronization in multichannel seizure EEG using nonlinear recurrence measure. Biomed Signal Process Control 2014. [DOI: 10.1016/j.bspc.2014.02.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Shrestha I, Pradhan N, Sharma J. Factors Influencing Perception of Labor Pain among Parturient Women at Tribhuvan University Teaching Hospital. Nepal j obstet gynaecol 2013. [DOI: 10.3126/njog.v8i1.8857] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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
Aims: This study was done to understand the severity of labor pain in parturients of Kathmandu and to determine factors affecting it. Methods: A descriptive study was conducted in Tribhuvan University Teaching Hospital (TUTH), Kathmandu, Nepal where 300 term parturientsin active labor (cervical dilatation of 3-5 cm with three uterine contractions in 10 minutes each lasting for ≥ 30 seconds) were analysed for socio-demographic data, clinical profile and pain assessment.Visual analog scale was used for pain assessment. Results: The intensity of labor pain was graded as severe by 32%, moderateby 57% and mild by 11% of parturients.Almost half ofthe parturients in the age group of ≤19years described labor pain as severe as compared to women between 20-34years (30.4%) and ≥35years (20%). Among the nulliparous parturients, 37% described it as severe compared to only 20.7% in≥Para1.In those with≥higher secondary leveleducation, 35.9% described labor pain as severe as compared to those women who had education of ≤primary level(26.9%) and upto secondary level (27.1%). Labor pain was seen to be more severe in advanced labor withmore than half describingit as severe when the cervix was dilated to 5 cm, as compared to only 25.9% and 29.4% of the parturients at 3 and 4cm cervical dilatation respectively. Conclusions: This study concluded that the labor pain was moderate to severe for majority of the parturients.Adolescents, nullipara, patients with higher education and those in advanced laborwere more likely to perceive labor pain of higher intensity. Nepal Journal of Obstetrics and Gynaecology / Vol 8 / No. 1 / Issue 15 / Jan- June, 2013 / 26-30 DOI: http://dx.doi.org/10.3126/njog.v8i1.8857
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Yeung D, Rourke K, Pradhan N. Use of two posterior lip augmentation devices for recurrent total hip arthroplasty dislocation in select patients. Ann R Coll Surg Engl 2013. [PMID: 23485005 PMCID: PMC4098589 DOI: 10.1308/003588413x13511609958055d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- D Yeung
- Warrington and Halton Hospitals NHS Foundation Trust, UK
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Yeung D, Rourke K, Pradhan N. Use of two posterior lip augmentation devices for recurrent total hip arthroplasty dislocation in select patients. Ann R Coll Surg Engl 2013; 95:156. [DOI: 10.1308/rcsann.2013.95.2.156a] [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: 11/22/2022] Open
Affiliation(s)
- D Yeung
- Warrington and Halton Hospitals NHS Foundation Trust, UK
| | - K Rourke
- Warrington and Halton Hospitals NHS Foundation Trust, UK
| | - N Pradhan
- Warrington and Halton Hospitals NHS Foundation Trust, UK
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Panda S, Parhi PK, Nayak BD, Pradhan N, Mohapatra UB, Sukla LB. Two step meso-acidophilic bioleaching of chalcopyrite containing ball mill spillage and removal of the surface passivation layer. Bioresour Technol 2013; 130:332-338. [PMID: 23313677 DOI: 10.1016/j.biortech.2012.12.071] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Revised: 12/03/2012] [Accepted: 12/10/2012] [Indexed: 06/01/2023]
Abstract
Meso-acidophilic bacterial leaching of ball mill spillage (containing chalcopyrite >80%) was carried out in an innovative two-step bioleaching method. The major drawback of meso-acidophilic bioleaching limiting industrial application is the passivation phenomenon over the ore surfaces in iron-sulfur rich environments. In the present study, we present a novel wash solution that efficiently removed the passivation layer. FTIR characterization of the bioleached sample indicated that the residues could be further leached to recover extra copper after wash solution application. XRD study indicated accumulation of sulfates (SO(4)(-)) of Na, K, Fe and oxy hydroxides of iron [FeO(OH)] in the form of jarosite outlining the passivation layer. SEM, FESEM-EDS studies indicated severe corrosion effects of the wash solution on the passivation layer. Two step bioleaching of the ore sample yielded 32.6% copper in 68days in the first interlude and post wash solution application yielded 10.8% additional copper.
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Affiliation(s)
- S Panda
- Bioresources Engineering Department, CSIR-Institute of Minerals and Materials Technology (IMMT), Bhubaneswar 751013, India.
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Behera SK, Panda SK, Pradhan N, Sukla LB, Mishra BK. Extraction of nickel by microbial reduction of lateritic chromite overburden of Sukinda, India. Bioresour Technol 2012; 125:17-22. [PMID: 23018159 DOI: 10.1016/j.biortech.2012.08.076] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Revised: 08/15/2012] [Accepted: 08/18/2012] [Indexed: 06/01/2023]
Abstract
Microbial extraction of nickel from lateritic chromite overburden (COB), Sukinda by Acidithiobacillus ferrooxidans has been investigated in this work. In anoxic environment, A. ferrooxidans reduced the ferric iron in goethite [Fe(O)OH] mineral of COB by using elemental sulphur as electron donor. Nickel embedded in the complex goethite matrix of COB was successfully recovered by cumulative action of sulphuric acid, generated by oxidation of elemental sulphur and reduction of ferric iron in goethite matrix by A. ferrooxidans. Forty one percent of the nickel present in COB was extracted in a 3 L scale bioreactor (pH of 1.8 ± 0.05, temperature of 28 ± 2°C) maintained in anoxic environment. In contrast, only 11% of the nickel present in COB was extracted with continuous supply of air to the bioreactor keeping all the parameters unchanged. Kinetics study of anoxic microbial processing of COB revealed that the chemical reaction rate control model fits to the rate of nickel dissolution (R(2)=0.975).
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Affiliation(s)
- S K Behera
- Institute of Minerals and Materials Technology (CSIR), Bhubaneswar 751 013, India
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Pradhan N, R. Nayak R, K. Mishra D, Priyadarshini E, B. Sukla L, K. Mishra B. Microbial Treatment of Lateritic Ni-ore for Iron Beneficiation and Their Characterization. ACTA ACUST UNITED AC 2012. [DOI: 10.5923/j.env.20120206.01] [Citation(s) in RCA: 9] [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: 11/22/2022]
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Rijal H, Manandhar R, Pradhan N. A randomized study comparing intravaginal prostaglandin (PGE2) with oxytocin for induction of labour in premature rupture of membrane at term. Nepal Med Coll J 2012; 14:199-203. [PMID: 24047015] [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] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This is a prospective randomized study conducted in Tribhuvan University Teaching Hospital from February 2008 to January 2009. Total 72 women with Premature rupture of membranes (PROM) were included. Thirty-six women received PGE2 vaginal gel and thirty-six received iv oxytocin. Induction was successful in majority of cases in both the groups; 88.8% in PGE2 and 83.3% in oxytocin group (p value = 0.063). Time duration from induction to active stage was comparable (p value = 0.273). Induction to delivery interval was significantly low in oxytocin group (p value = 0.002) but leaking to delivery interval was similar in both the groups (p value = 0.083). PGE2 had slightly higher side effect than oxytocin. PGE2 and oxytocin were both effective and safe for induction of labour in women with PROM at term. There was no significant difference in maternal and fetal outcome, hospital stay, leaking to delivery interval, maternal and neonatal side effects, though induction to delivery interval was significantly less with oxytocin.
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Affiliation(s)
- H Rijal
- Department of Obstretics and Gynaecology, Tribhuvan University Teaching Hospital, Maharajgunj, Kathmandu, Nepal.
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Tulk CA, Klug DD, dos Santos AM, Karotis G, Guthrie M, Molaison JJ, Pradhan N. Cage occupancies in the high pressure structure H methane hydrate: A neutron diffraction study. J Chem Phys 2012; 136:054502. [DOI: 10.1063/1.3679875] [Citation(s) in RCA: 24] [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: 01/02/2023] Open
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Bandyopadhyaya D, Nizamie SH, Pradhan N, Bandyopadhyaya A. Spontaneous gamma coherence as a possible trait marker of schizophrenia-An explorative study. Asian J Psychiatr 2011; 4:172-7. [PMID: 23051113 DOI: 10.1016/j.ajp.2011.06.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [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] [Received: 02/15/2011] [Revised: 06/04/2011] [Accepted: 06/19/2011] [Indexed: 10/17/2022]
Abstract
OBJECTIVES Integration of sensory information by cortical network binding appears to be crucially involved in sensory processing activity. Studies in schizophrenia using functional neuroimaging, event-related potentials and EEG coherence indicate an impairment of cortical network coupling in this disorder. Previous electrophysiological investigations in animals and humans suggested that gamma activity (oscillations at around 30-100Hz) is essential for cortical network binding. This is the first investigation of spontaneous gamma activity in schizophrenics and their first degree relatives as compared to normal controls. METHOD Resting EEG was recorded in 20 drug naïve/drug free male schizophrenic patients, their pair matched male first degree relatives and 20 age-, sex-, education- and handedness-matched normal controls. Power spectrum and coherence of gamma band activity was analysed using MATLAB 6.5. RESULTS Schizophrenic patients had significantly less interhemispheric spontaneous gamma coherence and increased gamma power compared to normal controls. But there was no significant difference in gamma coherence between patients and their first degree relatives. Spontaneous gamma coherence had significant correlation with few PANSS subscale scores. CONCLUSIONS There is cortical hyperactivation and a reduced spontaneous and induced gamma coherence abnormality in schizophrenia. The abnormal gamma coherence appears explaining the psychopathology and poor performance on cognitive task in schizophrenia. This study has also generated hypotheses that the gamma band abnormality may be a trait abnormality in schizophrenics as seen by the similarity between the patient and their clinically asymptomatic first degree relatives.
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Guthrie M, Boehler R, Somayazulu M, Strobel T, Karotsis G, Tulk C, dos SAM, Molaison J, Pradhan N. High-pressure neutron diffraction at the SNS. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311097261] [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: 11/11/2022] Open
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Das AP, Sukla LB, Pradhan N, Nayak S. Manganese biomining: A review. Bioresour Technol 2011; 102:7381-7387. [PMID: 21632238 DOI: 10.1016/j.biortech.2011.05.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Revised: 05/06/2011] [Accepted: 05/08/2011] [Indexed: 05/30/2023]
Abstract
Biomining comprises of processing and extraction of metal from their ores and concentrates using microbial techniques. Currently this is used by the mining industry to extract copper, uranium and gold from low grade ores but not for low grade manganese ore in industrial scale. The study of microbial genomes, metabolites and regulatory pathways provide novel insights to the metabolism of bioleaching microorganisms and their synergistic action during bioleaching operations. This will promote understanding of the universal regulatory responses that the biomining microbial community uses to adapt to their changing environment leading to high metal recovery. Possibility exists of findings ways to imitate the entire process during industrial manganese biomining endeavor. This paper reviews the current status of manganese biomining research operations around the world, identifies factors that drive the selection of biomining as a processing technology, describes challenges in exploiting these innovations, and concludes with a discussion of Mn biomining's future.
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Affiliation(s)
- A P Das
- Centre of Biotechnology, Siksha O Anusandhan University, Bhubaneswar, India
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