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Dutta A, Hazra KK, Nath CP, Kumar N, Singh SS, Praharaj CS. Long-term impact of legume-inclusive diversification and nutrient management practices on phosphorus dynamics in alkaline Fluvisol. Sci Rep 2024; 14:65. [PMID: 38167531 PMCID: PMC10762125 DOI: 10.1038/s41598-023-49616-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 12/10/2023] [Indexed: 01/05/2024] Open
Abstract
An insight into the dynamics of soil phosphorus (P) pools with long-term cropping/management practices would help in designing efficient and sustainable management module(s). The study aimed to investigate the long-term impact of diversified rice-based rotations and variable nutrient management practices on the dynamic composition of P pools and their influence on systems' base-crop productivity in an alkaline soil of Indo-Gangetic plain (Fluvisol). Treatments consisted of four rotations [rice-wheat (R-W), rice-wheat-mungbean (R-W-Mb), rice-wheat-rice-chickpea (R-W-R-C), rice-chickpea (R-C)] each with three nutrient treatments [control (CT), integrated nutrient management (INM), sole-chemical fertilizers (CF)]. Notably, R-C exhibited higher levels of bioavailable-P (soluble-P, Ca2-P, labile-Po), particularly in subsurface soil depth (0.2-0.4 m) compared to other rotations. Likewise, the inclusion of chickpea every alternate year (R-W-R-C) resulted in higher Ca2-P (40%), labile-Pi (15%), labile-Po (11%), and moderately labile Po (8%) compared to R-W rotation demonstrating an increased significance of chickpea in maintaining a favorable soil P regime in alkaline soil. Both R-C and R-W-R-C reduced the surface-to-subsurface depth ratio (SSBR) of soluble-P and Ca2-P while increasing the ratio for microbial biomass P. Even with a suboptimal fertilizer-P rate, INM significantly increased soluble-P (4-33%), labile-Po (13-17%), microbial biomass P (10-26%), moderately labile-Po (4-17%) compared to CF and exhibited higher SSBR values. Correlation analysis demonstrated the substantial influence of very-labile carbon, microbial and phosphatase activities on P availability. The treatment-induced changes in labile-P pools significantly influenced rice (base-crop) yields. In conclusion, chickpea-inclusive diversification and INM could be a sustainable approach to enhance P bioavailability and crop productivity in tropical rice soils.
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Affiliation(s)
- Asik Dutta
- Crop Production Division, Indian Institute of Pulses Research (ICAR), Kanpur, Uttar Pradesh, 208024, India.
| | - K K Hazra
- Crop Production Division, Indian Institute of Pulses Research (ICAR), Kanpur, Uttar Pradesh, 208024, India.
| | - C P Nath
- Crop Production Division, Indian Institute of Pulses Research (ICAR), Kanpur, Uttar Pradesh, 208024, India.
| | - N Kumar
- Crop Production Division, Indian Institute of Pulses Research (ICAR), Kanpur, Uttar Pradesh, 208024, India.
| | - S S Singh
- Rani Lakshmi Bai Central Agricultural University, Jhansi, Uttar Pradesh, 284003, India
| | - C S Praharaj
- Directorate of Groundnut Research, Junagadh, Gujarat, 362001, India
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Stefano G, Condous G, Rolla M, Hudelist G, Ferrero S, Alcazar JL, Ajossa S, Bafort C, Van Schoubroeck D, Bourne T, Van den Bosch T, Singh SS, Abrao MS, Szabó G, Testa AC, Di Giovanni A, Fischerova D, Tomassetti C, Timmerman D. Addendum to the consensus opinion from the International Deep Endometriosis Analysis (IDEA) group: sonographic evaluation of the parametrium. Ultrasound Obstet Gynecol 2023. [PMID: 38057967 DOI: 10.1002/uog.27558] [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] [Received: 08/24/2023] [Revised: 11/24/2023] [Accepted: 11/30/2023] [Indexed: 12/08/2023]
Abstract
Preoperative sonographic staging in patients with suspected parametrial endometriosis is essential to plan the surgical intervention and to anticipate the need for a multidisciplinary approach, and hence optimize surgical outcome. The results of a recent metanalysis suggest that defining more accurately the ultrasonographic criteria of parametrial involvement in endometriosis is needed. The aim of this addendum to the IDEA-consensus is to highlight the sonographic characteristics of the parametrium and identify ultrasound techniques to diagnose deep endometriosis in this area. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- G Stefano
- Centro Integrato di Procreazione Medicalmente Assistita (PMA) e Diagnostica Ostetrico-Ginecologica, Azienda Ospedaliero Universitaria Cagliari-Policlinico Duilio Casula, Monserrato, Italy
- University of Cagliari, Cagliari, Italy
| | - G Condous
- Acute Gynaecology, Early Pregnancy and Advanced Endoscopy Surgery Unit, Sydney Medical School Nepean, Nepean Hospital, University of Sydney, Penrith, New South Wales, Australia
| | - M Rolla
- Department of Gynecology and Obstetrics of Parma, University of Parma, Parma, Italy
| | - G Hudelist
- Department of Gynecology, Center for Endometriosis, Hospital St John of God, Vienna, Austria
- Rudolfinerhaus Private Clinic and Campus, Vienna, Austria
| | - S Ferrero
- Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, Genoa, Italy
- Academic Unit of Obstetrics and Gynecology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - J L Alcazar
- Department of Obstetrics and Gynecology, School of Medicine, Universidad de Navarra, Pamplona, Spain
| | - S Ajossa
- Centro Integrato di Procreazione Medicalmente Assistita (PMA) e Diagnostica Ostetrico-Ginecologica, Azienda Ospedaliero Universitaria-Policlinico Duilio Casula, Monserrato, Italy
| | - C Bafort
- Department of Obstetrics and Gynaecology, Leuven University Fertility Centre, University Hospitals Leuven, Leuven, Belgium
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - D Van Schoubroeck
- Department of Obstetrics and Gynaecology, Leuven University Fertility Centre, University Hospitals Leuven, Leuven, Belgium
| | - T Bourne
- Queen Charlotte's and Chelsea Hospital, Imperial College, London, UK
| | - T Van den Bosch
- Department of Obstetrics and Gynecology, KU Leuven University Hospital, Leuven, Belgium
| | - S S Singh
- Department of Obstetrics and Gynecology, The Ottawa Hospital, Ottawa, Canada
| | - M S Abrao
- Gynecologic Division, BP-A Beneficencia Portuguesa de São Paulo, São Paulo, Brazil
- Disciplina de Ginecologia, Departamento de Obstetricia e Ginecologia, Hospital das Clinicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - G Szabó
- Department of Obstetrics and Gynaecology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - A C Testa
- Dipartimento Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
- Dipartimento Scienze della Vita e Sanità Pubblica, Università Cattolica del Sacro Cuore, Rome, Italy
| | - A Di Giovanni
- Endoscopica Malzoni, Center for Advanced Pelvic Surgery (Drs Giovanni), Avellino, Italy
| | - D Fischerova
- Department of Obstetrics and Gynecology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - C Tomassetti
- Department of Obstetrics and Gynaecology, Leuven University Fertility Centre, University Hospitals Leuven, Leuven, Belgium
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - D Timmerman
- Department of Obstetrics and Gynaecology, Leuven University Fertility Centre, University Hospitals Leuven, Leuven, Belgium
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
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3
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Nath CP, Dutta A, Hazra KK, Praharaj CS, Kumar N, Singh SS, Singh U, Das K. Long-term impact of pulses and organic amendments inclusion in cropping system on soil physical and chemical properties. Sci Rep 2023; 13:6508. [PMID: 37081033 PMCID: PMC10119138 DOI: 10.1038/s41598-023-33255-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 04/10/2023] [Indexed: 04/22/2023] Open
Abstract
Mono-cropping of maize-wheat, mechanical disintegration of soils, and continuous chemical fertilization have deteriorated soil health in the Indo-Gangetic Plains. We studied the long-term impact of pulse-based cropping systems with integrated nutrient management on soil physical and chemical properties and yield sustainability. We evaluated four different cropping systems: (1) maize-wheat (M-W), (2) maize-wheat-mungbean (M-W-Mb), (3) maize-wheat-maize-chickpea (M-W-M-C), (4) pigeonpea-wheat (P-W) each with three degrees of soil fertilization techniques: (1) unfertilized control (CT), (2) inorganic fertilization (RDF), and (3) integrated nutrient management (INM). The field experiment was undertaken in a split-plot design with three replications each year with a fixed layout. P-W and M-W-Mb systems enhanced soil properties such as volume expansion by 9-25% and porosity by 7-9% (p < 0.05) more than M-W, respectively. P-W and M-W-Mb increased soil organic carbon by 25-42% and 12-50% over M-W (RDF). P-W system enhanced water holding capacity and gravimetric moisture content by 10 and 11% (p < 0.05) than M-W. Pulse-based systems (P-W and M-W-Mb) had higher available nitrogen (8-11%), phosphorus (42-73%), and potassium (8-12%) over M-W (p < 0.05). M-W-Mb increased 26% maize yield and 21% wheat yield over M-W (p < 0.05) at the thirteenth crop cycle. P-W system had a higher sustainable yield index (p < 0.05) of wheat over the M-W. Thus, pulse inclusion in the cropping system in combination with INM can enhance physical and chemical properties vis-à-vis sustainable yield index over the cereal-cereal system.
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Affiliation(s)
- C P Nath
- Division of Crop Production, ICAR-Indian Institute of Pulses Research, Kanpur, 208 024, India.
| | - Asik Dutta
- Division of Crop Production, ICAR-Indian Institute of Pulses Research, Kanpur, 208 024, India.
| | - K K Hazra
- Division of Crop Production, ICAR-Indian Institute of Pulses Research, Kanpur, 208 024, India.
| | - C S Praharaj
- ICAR-Directorate of Groundnut Research, Junagadh, Gujarat, 362 001, India
| | - Narendra Kumar
- Division of Crop Production, ICAR-Indian Institute of Pulses Research, Kanpur, 208 024, India.
| | - S S Singh
- Rani Lakshmi Bai Central Agricultural University, Jhansi, 284 003, India
| | - Ummed Singh
- Agriculture University, Jodhpur, Rajasthan, 324 001, India
| | - Krishnashis Das
- ICAR-Indian Agricultural Research Institute, Pusa, New Delhi, 110 012, India
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Jaiswal TP, Chakraborty S, Sharma S, Mishra A, Mishra AK, Singh SS. Prospects of a hot spring-originated novel cyanobacterium, Scytonema ambikapurensis, for wastewater treatment and exopolysaccharide-enriched biomass production. Environ Sci Pollut Res Int 2023; 30:53424-53444. [PMID: 36856995 DOI: 10.1007/s11356-023-26032-2] [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: 08/19/2022] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
The present work performs the polyphasic characterization of a novel cyanobacterial species Scytonema ambikapurensis isolated from an Indian hot spring and evaluates its wastewater bioremediation potential. While the physicochemical analyses of the wastewater indicated high load of nutrients and metals, the wastewater bioremediation experiment performed using the test cyanobacterium denoted the removal of 70 and 86% phosphate, 49 and 66% sulfate, 96 and 98% nitrate, 91 and 92% nitrite, 95 and 96% ammonia, 66 and 72% chloride, 79 and 81% zinc, 68 and 80% nickel, 81 and 90% calcium, and 80 and 90% potassium from the autoclaved and un-autoclaved wastewater, respectively, after 20 days of culturing. The kinetics study of zinc and nickel removal from wastewater revealed that the cyanobacterium employed sequential biosorption (by following pseudo-second-order kinetics model) and bioaccumulation methods to remove these two metals. The quality of the autoclaved and un-autoclaved wastewater was further improved by the cyanobacterium through reduction of hardness by 74 and 81%, respectively. In wastewater, the cyanobacterium not only enhanced its biomass, chlorophyll and carbohydrate contents, but also produced small amount of released and high capsular exopolysaccharide (EPS). The FTIR and TGA analyses of capsular EPS unraveled that it was a negatively charged sulfated biomolecule having thermostability up to 240 °C, which suggested its possible use as excellent emulsifying, viscosifying, and biosorption agent. The credibility of this EPS as biosorption agent was ascertained by evaluating its metal chelating ability. Finally, the experimental data denoting the ability of S. ambikapurensis to bioremediate wastewater and simultaneously produce EPS was statistically validated by PCA1-pollutant removal model and the PCA2-cellular constituent model, respectively. Briefly, the study discloses that the cyanobacterium has huge biotechnological and industrial importance as it bioremediates wastewater and simultaneously produces thermostable exopolysaccharide.
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Affiliation(s)
- Tameshwar Prasad Jaiswal
- Laboratory of Cyanobacterial Systematics and Stress Biology, Department of Botany, Banaras Hindu University, Varanasi, 221005, India
| | - Sindhunath Chakraborty
- Laboratory of Microbial Genetics, Department of Botany, Banaras Hindu University, Varanasi, India
| | - Sanjay Sharma
- Laboratory of Cyanobacterial Systematics and Stress Biology, Department of Botany, Banaras Hindu University, Varanasi, 221005, India
| | - Aditi Mishra
- Laboratory of Cyanobacterial Systematics and Stress Biology, Department of Botany, Banaras Hindu University, Varanasi, 221005, India
| | - Arun Kumar Mishra
- Laboratory of Microbial Genetics, Department of Botany, Banaras Hindu University, Varanasi, India
| | - Satya Shila Singh
- Laboratory of Cyanobacterial Systematics and Stress Biology, Department of Botany, Banaras Hindu University, Varanasi, 221005, India.
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5
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Chakraborty S, Bhattacharjee S, Tiwari B, Jaishwal T, Singh SS, Mishra AK. Deciphering the mechanisms of zinc tolerance in the cyanobacterium Anabaena sphaerica and its zinc bioremediation potential. Environ Sci Pollut Res Int 2023; 30:9591-9608. [PMID: 36057058 DOI: 10.1007/s11356-022-22388-z] [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: 04/28/2022] [Accepted: 07/29/2022] [Indexed: 06/15/2023]
Abstract
Cyanobacteria adopt a variety of changes at proteomic and metabolic levels for surviving under harmful environmental conditions including heavy metal stress. The current study investigates the impact of zinc stress on the proteome of Anabaena sphaerica to get an insight into its molecular mechanisms of zinc tolerance. The study revealed three different aspects that were associated with the zinc tolerance in A. sphaerica: (i) the reduced expression of photosynthesis, nitrogen fixation, energy metabolism, respiratory, and transcriptional/translational proteins probably to conserve energy and utilizing it to sustain growth; (ii) the enhanced expression of metallothionein and ferritin domain protein All 3940 to chelate free zinc ions whereas upregulation of antioxidative proteins for detoxifying reactive oxygen species; and (iii) the expression of large numbers of hypothetical proteins to maintain the important cellular functions. Furthermore, over expressions of sulfate adenylyl transferase and cystathionine beta synthase along with the increased synthesis of peptidases and thiolated antioxidant proteins were also noticed which denoted cysteine synthesis under sulfur deprivation possibly by mobilizing the sulfur from dead cells and its channelization towards the production of thiolated antioxidants. Besides tolerating excess amount of zinc, A. sphaerica exhibited high zinc biosorption efficiency which confirmed its outstanding zinc bioremediation potential.
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Affiliation(s)
- Sindhunath Chakraborty
- Laboratory of Microbial Genetics, Department of Botany, Banaras Hindu University, Varanasi, 221005, India
| | - Samujjal Bhattacharjee
- Laboratory of Microbial Genetics, Department of Botany, Banaras Hindu University, Varanasi, 221005, India
| | - Balkrishna Tiwari
- Laboratory of Microbial Genetics, Department of Botany, Banaras Hindu University, Varanasi, 221005, India
| | - Tameshwar Jaishwal
- Laboratory of Microbial Genetics, Department of Botany, Banaras Hindu University, Varanasi, 221005, India
- Laboratory of Cyanobacterial Systematics and Stress Biology, Department of Botany, Banaras Hindu University, Varanasi, 221005, India
| | - Satya Shila Singh
- Laboratory of Cyanobacterial Systematics and Stress Biology, Department of Botany, Banaras Hindu University, Varanasi, 221005, India
| | - Arun Kumar Mishra
- Laboratory of Microbial Genetics, Department of Botany, Banaras Hindu University, Varanasi, 221005, India.
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Prasad A, Patel P, Niranjan A, Mishra A, Saxena G, Singh SS, Chakrabarty D. Biotic elicitor-induced changes in growth, antioxidative defense, and metabolites in an improved prickleless Solanum viarum. Appl Microbiol Biotechnol 2022; 106:6455-6469. [PMID: 36069926 DOI: 10.1007/s00253-022-12159-8] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/19/2022] [Accepted: 08/24/2022] [Indexed: 11/30/2022]
Abstract
Solanum viarum serves as a raw material for the steroidal drug industry due to its alkaloid and glycoalkaloid content. Elicitation is well-known for measuring the increase in the yield of bioactive compounds in in vitro cultures. The current study was performed for the accumulation of metabolites viz. solasodine, solanidine, and α-solanine in S. viarum culture using microbial-based elicitors added in 1%, 3%, 5%, and 7% on 25th and 35th day of culture period and harvested on 45th and 50th days of culture cycle. The treatment of 3% Trichoderma reesei and Bacillus tequilensis culture filtrate (CF) significantly increased biomass, alkaloids/glycoalkaloid content, and yield in S. viarum. T. reesei was found to be the best treatment for enhanced growth (GI = 11.65) and glycoalkaloid yield (2.54 mg DW plant-1) after the 50th day of the culture cycle when added on the 25th day. The abundance of gene transcripts involved in the biosynthesis of alkaloids/glycoalkaloids, revealed by quantitative real-time PCR expression analysis correlates with the accumulation of their respective metabolites in elicited plants. Biochemical analysis shows that elicited plants inhibited oxidative damage caused by reactive oxygen species by activating enzymes (superoxide dismutase and ascorbate peroxidase) as well as non-enzymatic antioxidant mechanisms (alkaloids, total phenols, total flavonoids, carotenoids, and proline). The findings of this study clearly demonstrate that the application of T. reesei and B. tequilensis CF at a specific dose and time significantly improve biomass as well as upregulates the metabolite biosynthetic pathway in an important medicinal plant- S. viarum. KEY POINTS: • Biotic elicitors stimulated the alkaloids/glycoalkaloid content in S. viarum plant cultures. • T. reesei was found to be most efficient for enhancing the growth and alkaloids content. • Elicited plants activate ROS based-defense mechanism to overcome oxidative damage.
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Affiliation(s)
- Archana Prasad
- Molecular Biology and Biotechnology Division, Council of Scientific & Industrial Research- National Botanical Research Institute, Lucknow, 226001, U.P., India
- Department of Botany, University of Lucknow, Lucknow, 226007, U.P., India
| | - Preeti Patel
- Molecular Biology and Biotechnology Division, Council of Scientific & Industrial Research- National Botanical Research Institute, Lucknow, 226001, U.P., India
- Department of Botany, Banaras Hindu University, Varanasi, 221005, U.P., India
| | - Abhishek Niranjan
- Central Instrumentation Facility, Council of Scientific & Industrial Research- National Botanical Research Institute, Lucknow, 226001, U.P., India
| | - Aradhana Mishra
- Division of Plant Microbe Interaction, Council of Scientific and Industrial Research- National Botanical ResearchInstitute, Lucknow, India
| | - Gauri Saxena
- Department of Botany, University of Lucknow, Lucknow, 226007, U.P., India
| | - Satya Shila Singh
- Department of Botany, Banaras Hindu University, Varanasi, 221005, U.P., India
| | - Debasis Chakrabarty
- Molecular Biology and Biotechnology Division, Council of Scientific & Industrial Research- National Botanical Research Institute, Lucknow, 226001, U.P., India.
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Pascoal E, Wessels JM, Aas-Eng MK, Abrao MS, Condous G, Jurkovic D, Espada M, Exacoustos C, Ferrero S, Guerriero S, Hudelist G, Malzoni M, Reid S, Tang S, Tomassetti C, Singh SS, Van den Bosch T, Leonardi M. Strengths and limitations of diagnostic tools for endometriosis and relevance in diagnostic test accuracy research. Ultrasound Obstet Gynecol 2022; 60:309-327. [PMID: 35229963 DOI: 10.1002/uog.24892] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 02/20/2022] [Accepted: 02/22/2022] [Indexed: 06/14/2023]
Abstract
Endometriosis is a chronic systemic disease that can cause pain, infertility and reduced quality of life. Diagnosing endometriosis remains challenging, which yields diagnostic delays for patients. Research on diagnostic test accuracy in endometriosis can be difficult due to verification bias, as not all patients with endometriosis undergo definitive diagnostic testing. The purpose of this State-of-the-Art Review is to provide a comprehensive update on the strengths and limitations of the diagnostic modalities used in endometriosis and discuss the relevance of diagnostic test accuracy research pertaining to each. We performed a comprehensive literature review of the following methods: clinical assessment including history and physical examination, biomarkers, diagnostic imaging, surgical diagnosis and histopathology. Our review suggests that, although non-invasive diagnostic methods, such as clinical assessment, ultrasound and magnetic resonance imaging, do not yet qualify formally as replacement tests for surgery in diagnosing all subtypes of endometriosis, they are likely to be appropriate for advanced stages of endometriosis. We also demonstrate in our review that all methods have strengths and limitations, leading to our conclusion that there should not be a single gold-standard diagnostic method for endometriosis, but rather, multiple accepted diagnostic methods appropriate for different circumstances. © 2022 International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- E Pascoal
- Department of Obstetrics and Gynecology, McMaster University, Hamilton, Canada
| | - J M Wessels
- Department of Obstetrics and Gynecology, McMaster University, Hamilton, Canada
- AIMA Laboratories Inc., Hamilton, Canada
| | - M K Aas-Eng
- Department of Gynecology, Oslo University Hospital Ulleval, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - M S Abrao
- Gynecologic Division, BP-A Beneficencia Portuguesa de São Paulo, São Paulo, Brazil
- Disciplina de Ginecologia, Departamento de Obstetricia e Ginecologia, Hospital das Clinicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - G Condous
- Acute Gynecology, Early Pregnancy and Advanced Endosurgery Unit, Sydney Medical School, Nepean Hospital, Sydney, Australia
| | - D Jurkovic
- Institute for Women's Health, University College London Hospitals NHS Foundation Trust, London, UK
| | - M Espada
- Department of Obstetrics and Gynaecology, Blue Mountains ANZAC Memorial Hospital, Katoomba, Australia
- Sydney Medical School, Sydney, Australia
| | - C Exacoustos
- Department of Surgical Sciences, Obstetrics and Gynecological Clinic, University of Rome 'Tor Vergata', Rome, Italy
| | - S Ferrero
- Academic Unit of Obstetrics and Gynecology, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - S Guerriero
- Centro Integrato di Procreazione Medicalmente Assistita (PMA) e Diagnostica Ostetrico-Ginecologica, Azienda Ospedaliero Universitaria-Policlinico Duilio Casula, Cagliari, Italy
| | - G Hudelist
- Department of Gynecology, Center for Endometriosis, St John of God Hospital, Vienna, Austria
- Scientific Endometriosis Foundation (SEF), Westerstede, Germany
| | - M Malzoni
- Endoscopica Malzoni, Center for Advanced Endoscopic Gynecologic Surgery, Avellino, Italy
| | - S Reid
- Department of Obstetrics and Gynaecology, Western Sydney University, Sydney, Australia
| | - S Tang
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Canada
| | - C Tomassetti
- Department of Obstetrics and Gynaecology, University Hospital Leuven, Leuven University Fertility Centre, Leuven, Belgium
| | - S S Singh
- Department of Obstetrics and Gynecology, The Ottawa Hospital, Ottawa, Canada
| | - T Van den Bosch
- Department of Obstetrics and Gynaecology, University Hospital Leuven, Leuven, Belgium
| | - M Leonardi
- Department of Obstetrics and Gynecology, McMaster University, Hamilton, Canada
- Sydney Medical School, Sydney, Australia
- Robinson Research Institute, Adelaide Medical School, University of Adelaide, Adelaide, Australia
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Patel P, Prasad A, Srivastava D, Niranjan A, Saxena G, Singh SS, Misra P, Chakrabarty D. Genotype-dependent and temperature-induced modulation of secondary metabolites, antioxidative defense and gene expression profile in Solanum viarum Dunal. Environmental and Experimental Botany 2022; 194:104686. [DOI: 10.1016/j.envexpbot.2021.104686] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
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Das MK, Rao MRK, Singh SS. Diversity of native larvivorous fish fauna during pre- and post-tsunami in Car Nicobar, Andaman & Nicobar Islands, India. J Vector Borne Dis 2022; 58:165-174. [PMID: 35074952 DOI: 10.4103/0972-9062.318317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND & OBJECTIVES Malaria is a serious public health problem in Car Nicobar Island, Andaman & Nicobar Islands, India. Using larvivorous fishes has proved to be the cheapest method for vector management approach, with long suppression of mosquito population. This study aims to scale-up the diversity of larvivorous fishes and their potential larvivoracity to evolve an appropriate biological intervention strategy against the immature stages of malaria vectors. METHODS During 2003 (pre-tsunami) and 2014-2016 (post-tsunami), an ecological descriptive survey was carried out in the water bodies around Car Nicobar Island. Fishes were captured using fishing nets and cast nets; and placed in plastic jars and preserved in formalin solution. Fishes were identified and classified according to the available keys. Their abundance and data on the current conservation status was recorded and analyzed. Their potential larvivoracity was graded according to their feeding intensity. RESULTS Pre-tsunami, a total of 27 larvivorous fish species belonging to 11 orders, 23 families and 23 genera were identified. Order Perciformes and the family Cyprinidae were the most ascendant group constituting 51.9 and 11.1%, respectively. While, 80.8% of species were preferred to inhabit the freshwater region, only 37% of species were surface feeders (SF). According to the conservation, assessment and management plan (CAMP, 1998), 44.4% species were at lower risk least concern (LRlc), while 55.6% species were at least concerned (LC) as per the IUCN, 2017 categorization. However, after the tsunami, 17 fish species had gone extinct and 10 fish species were found to remain alive in the local water bodies. INTERPRETATION & CONCLUSION Post-tsunami, the larvivoracity analysis indicated that Ophiocara aporos, Ophiocara procephala, Valamugil seheli, Channa punctata, Kuhlia rupestris, Khulia mugil, and Terapon jarbua possess high-level larvivorous potentiality in nature and are recommended for vector control in the study area. These fish species were facing several anthropogenic threats, such as human interference, loss of habitat, trade, overexploitation, and fishing. Therefore, it is important to protect the water bodies from external impact and implement the conservation strategies. Further, periodic fish fauna surveys, identification of breeding sites, scale-up of the larvivorous potentiality at the field level, creating public awareness through health education on establishment of larvivorous fish ponds and planning for mass rearing of the native fish species should be adopted as part of vector management approach in the endemic malarious region of Car Nicobar Island.
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Affiliation(s)
- Manoj Kumar Das
- ICMR-National Institute of Malaria Research, Field Unit, ITKI, Ranchi-835301, Jharkhand, India
| | - M Rajesh Kumar Rao
- ICMR-National Institute of Malaria Research, Field Unit, ITKI, Ranchi-835301, Jharkhand, India
| | - S S Singh
- GB Panth Hospital, Port Blair-744104, Andaman & Nicobar Islands, India
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Tiwari B, Singh P, Chakraborty S, Singh SS, Mishra AK. Degrading ability and robust antioxidative defence system led to SDS tolerance in cyanobacterium Fischerella sp. lmga1. J Environ Sci Health B 2021; 56:962-968. [PMID: 34693893 DOI: 10.1080/03601234.2021.1992229] [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] [Indexed: 06/13/2023]
Abstract
To test the tolerance and degradation potential of the cyanobacterium Fischerella sp. lmga1 for surfactant, sodium dodecyl sulfate (SDS), different doses of SDS (10, 30, 40, 50, 70 and 100 µM) were used for the growth. The lower doses of SDS supported the growth of cyanobacterium whereas the higher doses were found to be inhibitory but the cyanobacterium somehow managed its survival up to 100 µM SDS. However, a significant reduction was observed in the pigment and protein content. A substantial accumulation of carbohydrate at 70 µM SDS may act as an osmoprotectant for the survival of the cyanobacterium. The higher doses of SDS also triggered the ROS generation and lipid peroxidation which showed negative impact on the PSII efficiency. Simultaneously, an efficient ROS mitigation system (SOD and CAT activity) has also been worked up to 70 µM SDS while APX was enhanced only up to 50 µM SDS. Furthermore, the SDS degrading potential was investigated and almost 80% of the SDS was degraded after 6th days of treatment in the cyanobacterium. Hence, the results suggested that due to robust antioxidative defence system and ability to degrade the surfactant this cyanobacterium showed significant tolerance toward SDS.
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Affiliation(s)
- Balkrishna Tiwari
- Genetics and Tree Improvement Division, Himalayan Forest Research Institute, Shimla, India
| | - Prashansha Singh
- Laboratory of Microbial Genetics, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Sindhunath Chakraborty
- Laboratory of Microbial Genetics, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Satya Shila Singh
- Laboratory of Cyanobacterial Systematics and Stress Biology, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, India
| | - Arun Kumar Mishra
- Laboratory of Microbial Genetics, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, India
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Patel P, Prasad A, Gupta SC, Niranjan A, Lehri A, Singh SS, Misra P, Chakrabarty D. Growth, phytochemical and gene expression changes related to the secondary metabolite synthesis of Solanum viarum Dunal. Industrial Crops and Products 2021; 166:113464. [DOI: 10.1016/j.indcrop.2021.113464] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
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Panda PK, Manna S, Bhasi A, Singh SS, Maneesh VS. Paraquat poisoning in Andaman and Nicobar Islands - Government must intervene. J Family Med Prim Care 2021; 10:1780-1784. [PMID: 34123928 PMCID: PMC8144775 DOI: 10.4103/jfmpc.jfmpc_2020_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 12/02/2020] [Accepted: 01/05/2021] [Indexed: 11/04/2022] Open
Abstract
Paraquat poisoning is a grave public health problem in the Andaman and Nicobar islands of India. To evaluate various aspects of paraquat poisoning that influence the outcome, a retrospective study was planned. In this case series study, the information about all cases of acute paraquat poisoning who were admitted to GB Pant Hospital, Port-Blair, in a 12-year period (January 2007–December 2018) were evaluated. A total of 29 referred patients were evaluated with the majority from the early productive age of 16–30 years (68.97%). The case fatality rate was 100%. Most of the incidents took place in South Andaman district (68.97%) and during the rainy season (55.17%). Initially, they presented with local symptoms like mouth and throat pain with ulceration (48.27%), vomiting (44.82%), breathlessness (34.48%), epigastric and abdominal pain (31.03%), hematemesis (27.58%), and oliguria (20.68%). Later on, major organ dysfunctions like a respiratory failure (65.51%), acute kidney injury (62.08%), acute liver failure (55.17%), cardiac dysfunction (31.03%), and multiorgan failure (58.62%) ensued. Patients who were referred early had a significantly longer hospital stay. Few received advanced care, like, methyl prednisolone (24.12%), cyclophosphamide (10.34%), Mesna/NAC (06.89%), charcoal tablets (10.34%), mechanical ventilation (06.89%), and hemodialysis (10.34%). Apart from hemodialysis in acute kidney injury patients and steroid pulse, no other modalities showed improved hospital survival duration. Primary prevention especially government laws, public awareness, and education of health professionals regarding the seriousness of this problem are the keys to get rid of this incurable poisoning in these islands. The government should prioritize preventive works in the south Andaman district and during the rainy season to avoid catastrophe each year and if possible should ban it. Methyl prednisolone therapy and hemodialysis might be advocated to have a better outcome.
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Affiliation(s)
- Prasan Kumar Panda
- Department of Medicine, ANIIMS, Port Blair, Andaman and Nicobar Islands, India
| | - Sukdev Manna
- Department of Medicine, AIIMS, Rishikesh, Uttarakhand, India
| | - Ankith Bhasi
- Department of Medicine, AIIMS, Rishikesh, Uttarakhand, India
| | - S S Singh
- Department of Medicine, ANIIMS, Port Blair, Andaman and Nicobar Islands, India
| | - V S Maneesh
- Department of Medicine, ANIIMS, Port Blair, Andaman and Nicobar Islands, India
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Singh RK, Drews M, De la Sen M, Srivastava PK, Trisasongko BH, Kumar M, Pandey MK, Anand A, Singh SS, Pandey AK, Dobriyal M, Rani M, Kumar P. Highlighting the compound risk of COVID-19 and environmental pollutants using geospatial technology. Sci Rep 2021; 11:8363. [PMID: 33863975 PMCID: PMC8052456 DOI: 10.1038/s41598-021-87877-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 04/06/2021] [Indexed: 02/06/2023] Open
Abstract
The new COVID-19 coronavirus disease has emerged as a global threat and not just to human health but also the global economy. Due to the pandemic, most countries affected have therefore imposed periods of full or partial lockdowns to restrict community transmission. This has had the welcome but unexpected side effect that existing levels of atmospheric pollutants, particularly in cities, have temporarily declined. As found by several authors, air quality can inherently exacerbate the risks linked to respiratory diseases, including COVID-19. In this study, we explore patterns of air pollution for ten of the most affected countries in the world, in the context of the 2020 development of the COVID-19 pandemic. We find that the concentrations of some of the principal atmospheric pollutants were temporarily reduced during the extensive lockdowns in the spring. Secondly, we show that the seasonality of the atmospheric pollutants is not significantly affected by these temporary changes, indicating that observed variations in COVID-19 conditions are likely to be linked to air quality. On this background, we confirm that air pollution may be a good predictor for the local and national severity of COVID-19 infections.
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Affiliation(s)
- Ram Kumar Singh
- Department of Natural Resources, TERI School of Advanced Studies, New Delhi, 110070, India
| | - Martin Drews
- Department of Technology, Management and Economics, Technical University of Denmark, 2800, Kgs. Lyngby, Denmark
| | - Manuel De la Sen
- Department of Electricity and Electronics, Institute of Research and Development of Processes IIDP, University of the Basque Country, Campus of Leioa, PO Box 48940, Leioa (Bizkaia), Spain
| | - Prashant Kumar Srivastava
- Remote Sensing Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India
- DST-Mahamana Centre of Excellence in Climate Change Research, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India
| | - Bambang H Trisasongko
- Department of Soil Science and Land Resource and Geospatial Information and Technologies for the Integrative and Intelligent Agriculture (GITIIA), Bogor Agricultural University, Bogor, 16680, Indonesia
| | - Manoj Kumar
- GIS Centre, Forest Research Institute (FRI), PO: New Forest, Dehradun, 248006, India
| | - Manish Kumar Pandey
- Remote Sensing Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India
| | - Akash Anand
- Remote Sensing Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India
| | - S S Singh
- Directorate of Extension Education, Rani Lakshmi Bai Central Agricultural University, Jhansi, 284003, India
| | - A K Pandey
- College of Horticulture and Forestry, Rani Lakshmi Bai Central Agricultural University, Jhansi, 284003, India
| | - Manmohan Dobriyal
- College of Horticulture and Forestry, Rani Lakshmi Bai Central Agricultural University, Jhansi, 284003, India
| | - Meenu Rani
- Department of Geography, Kumaun University, Nainital, Uttarakhand, 263001, India
| | - Pavan Kumar
- College of Horticulture and Forestry, Rani Lakshmi Bai Central Agricultural University, Jhansi, 284003, India.
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Panda PK, Singh SS. Disease Profile of Paraquat Poisoning: Andaman and Nicobar experiences (Indian Islands) - DP3 study. J Assoc Physicians India 2020; 68:103. [PMID: 31979957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
| | - S S Singh
- All India Institute of Medical Sciences, Rishikesh
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15
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Bennett A, Thavorn K, Coyle D, Arendas K, Singh SS. 2935 Cost-Effectiveness of an Outpatient Uterine Assessment and Treatment Unit in Patients with Abnormal Uterine Bleeding: A Modelling Study. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.385] [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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Cooke CM, Flaxman T, Sheikh A, Althobaity W, Miguel O, Singh SS. 3D Printing in Gynecologic Surgery – an Innovative Tool for Surgical Planning. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.508] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Alhadhoud F, Zhu CR, Singh SS. Temporary Uterine Artery Occlusion at Laparoscopic Myomectomy – A Simple Technique to Reduce Blood Loss. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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van Etten J, de Sousa K, Aguilar A, Barrios M, Coto A, Dell'Acqua M, Fadda C, Gebrehawaryat Y, van de Gevel J, Gupta A, Kiros AY, Madriz B, Mathur P, Mengistu DK, Mercado L, Nurhisen Mohammed J, Paliwal A, Pè ME, Quirós CF, Rosas JC, Sharma N, Singh SS, Solanki IS, Steinke J. Crop variety management for climate adaptation supported by citizen science. Proc Natl Acad Sci U S A 2019. [PMID: 30782795 DOI: 10.1073/pnas.1813720116.201813720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2023] Open
Abstract
Crop adaptation to climate change requires accelerated crop variety introduction accompanied by recommendations to help farmers match the best variety with their field contexts. Existing approaches to generate these recommendations lack scalability and predictivity in marginal production environments. We tested if crowdsourced citizen science can address this challenge, producing empirical data across geographic space that, in aggregate, can characterize varietal climatic responses. We present the results of 12,409 farmer-managed experimental plots of common bean (Phaseolus vulgaris L.) in Nicaragua, durum wheat (Triticum durum Desf.) in Ethiopia, and bread wheat (Triticum aestivum L.) in India. Farmers collaborated as citizen scientists, each ranking the performance of three varieties randomly assigned from a larger set. We show that the approach can register known specific effects of climate variation on varietal performance. The prediction of variety performance from seasonal climatic variables was generalizable across growing seasons. We show that these analyses can improve variety recommendations in four aspects: reduction of climate bias, incorporation of seasonal climate forecasts, risk analysis, and geographic extrapolation. Variety recommendations derived from the citizen science trials led to important differences with previous recommendations.
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Affiliation(s)
| | - Kauê de Sousa
- Bioversity International, 30501 Turrialba, Costa Rica
- Department of Agricultural Sciences, Inland Norway University of Applied Sciences, 2318 Hamar, Norway
| | - Amílcar Aguilar
- Tropical Agricultural Research and Higher Education Center, 61000 Matagalpa, Nicaragua
| | - Mirna Barrios
- Tropical Agricultural Research and Higher Education Center, 61000 Matagalpa, Nicaragua
| | - Allan Coto
- Bioversity International, 30501 Turrialba, Costa Rica
| | - Matteo Dell'Acqua
- Scuola Superiore Sant'Anna, Institute of Life Sciences, 56124 Pisa, Italy
| | - Carlo Fadda
- Bioversity International, 1000 Addis Ababa, Ethiopia
| | | | | | - Arnab Gupta
- Bioversity International, Delhi 110012, India
| | - Afewerki Y Kiros
- Department of Dryland Crop and Horticultural Sciences, Mekelle University, 7000 Mekelle, Ethiopia
| | | | - Prem Mathur
- Bioversity International, Delhi 110012, India
| | - Dejene K Mengistu
- Bioversity International, 1000 Addis Ababa, Ethiopia
- Department of Dryland Crop and Horticultural Sciences, Mekelle University, 7000 Mekelle, Ethiopia
| | - Leida Mercado
- Tropical Agricultural Research and Higher Education Center, 30501 Turrialba, Costa Rica
| | - Jemal Nurhisen Mohammed
- Department of Dryland Crop and Horticultural Sciences, Mekelle University, 7000 Mekelle, Ethiopia
| | | | - Mario Enrico Pè
- Scuola Superiore Sant'Anna, Institute of Life Sciences, 56124 Pisa, Italy
| | | | - Juan Carlos Rosas
- Zamorano Panamerican Agricultural School, 11101 Tegucigalpa, Honduras
| | | | - S S Singh
- Indian Council for Agricultural Research-Indian Institute of Wheat and Barley Research, Karnal (Haryana) 132001, India
| | - Iswhar S Solanki
- Indian Agricultural Research Institute, Samastipur (Bihar) 848125, India
| | - Jonathan Steinke
- Bioversity International, 30501 Turrialba, Costa Rica
- Department of Agricultural Economics, Humboldt University of Berlin, 10099 Berlin, Germany
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Chakraborty S, Mishra A, Verma E, Tiwari B, Mishra AK, Singh SS. Physiological mechanisms of aluminum (Al) toxicity tolerance in nitrogen-fixing aquatic macrophyte Azolla microphylla Kaulf: phytoremediation, metabolic rearrangements, and antioxidative enzyme responses. Environ Sci Pollut Res Int 2019; 26:9041-9054. [PMID: 30719666 DOI: 10.1007/s11356-019-04408-7] [Citation(s) in RCA: 5] [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: 08/23/2018] [Accepted: 01/28/2019] [Indexed: 06/09/2023]
Abstract
To investigate the extent of aluminum toxicity tolerance of eco-friendly, fast-growing, fresh water, pteridophytic Azolla-Anabaena symbiotic association in terms of altered physiological signals; Azolla microphylla Kaulf was exposed to 0 (control), 100, 250, 500, and 750 μM AlCl3, at pH 4.5 for 6 days. The adversity of Al was increased in a dose-dependent manner and the highest was recorded at 750 μM AlCl3. Despite the significant loss in membrane integrity (80% electrolyte leakage) due to an enhanced generation of H2O2, A. microphylla reflected only 50% growth inhibition (fresh and dry weight) at 500 μM AlCl3 (LD50). However, the average root length of Azolla was drastically reduced at high concentration due to their direct contact with aluminum-containing growth medium. Contrary to this, the whole association maintained moderate chlorophyll, carbohydrate content, photosynthetic efficiency, nitrogen-fixing ability, and nitrogen content at high Al concentration. Probably, growth protection was pertained through significant detoxification of H2O2 by employing an efficient antioxidative defense system including antioxidative enzymes (SOD, APX, and CAT) and non-enzymatic antioxidant carotenoids. An enhanced level of phenolics and flavonoids in the root exudates possibly maintained a non-toxic level of aluminum inside the cell (195.8 μg Al/g FW) which makes A. microphylla a suitable pteridophytic plant to not only remove toxic Al from the contaminated sites but also to improve nitrogen status of those regions. Graphical abstract ᅟ.
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Affiliation(s)
| | - Aditi Mishra
- Department of Botany, Banaras Hindu University, Varanasi, 221005, India
| | - Ekta Verma
- Department of Botany, Banaras Hindu University, Varanasi, 221005, India
| | - Balkrishna Tiwari
- Department of Botany, Banaras Hindu University, Varanasi, 221005, India
| | - Arun K Mishra
- Department of Botany, Banaras Hindu University, Varanasi, 221005, India
| | - Satya Shila Singh
- Department of Botany, Banaras Hindu University, Varanasi, 221005, India.
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Kunui K, Singh SS. Deciphering the advanced methodology to investigate the survival of A. sphaerica in iron enriched region of Chhattisgarh. Can J Biotech 2017. [DOI: 10.24870/cjb.2017-a111] [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: 11/20/2022] Open
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Gale J, Thompson C, Lortie K, Bougie O, Singh SS. Planned Early Discharge After Laparoscopic (PEDAL) Hysterectomy Study: A Pilot Prospective Observational Study. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Bougie O, Singh SS. Genitourinary Involvement in Deep Infiltrating Endometriosis. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.611] [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: 11/29/2022]
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Rajakumar C, Chen I, Shenassa H, Singh SS, Lortie K. Optimizing Intra-Operative Visualization During Gynecologic Surgery. J Minim Invasive Gynecol 2016; 22:S124. [PMID: 27678663 DOI: 10.1016/j.jmig.2015.08.372] [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: 11/17/2022]
Affiliation(s)
- C Rajakumar
- Obstetrics, Gynecology and Newborn Care, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - I Chen
- Obstetrics, Gynecology and Newborn Care, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - H Shenassa
- Obstetrics, Gynecology and Newborn Care, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - S S Singh
- Obstetrics, Gynecology and Newborn Care, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - K Lortie
- Obstetrics, Gynecology and Newborn Care, The Ottawa Hospital, Ottawa, Ontario, Canada
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Hong SC, Agarwal S, Wong P, Fraser MA, Chen I, Singh SS. The Role of TAP Block in Ob/Gyn. J Minim Invasive Gynecol 2016; 22:S120. [PMID: 27678632 DOI: 10.1016/j.jmig.2015.08.337] [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: 11/17/2022]
Affiliation(s)
- S C Hong
- MIS Unit, KK Women's and Children's Hospital, Singapore, Singapore
| | - S Agarwal
- Department of Obstetrics and Gynaecology, MIS Unit, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - P Wong
- Department of Anesthesiology, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - M A Fraser
- Department of Medical Imaging, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - I Chen
- Department of Obstetrics and Gynaecology, MIS Unit, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - S S Singh
- Department of Obstetrics and Gynaecology, MIS Unit, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
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Chen I, Mallick R, Singh SS, Hopkins L, Schramm D. Association Between Endometriosis and Surgical Site Infection in Women Undergoing Hysterectomy. J Minim Invasive Gynecol 2016; 22:S168. [PMID: 27678927 DOI: 10.1016/j.jmig.2015.08.626] [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: 11/30/2022]
Affiliation(s)
- I Chen
- Department of Obstetrics and Gynaecology, University of Ottawa, Ottawa, Ontario, Canada
| | - R Mallick
- The Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - S S Singh
- Department of Obstetrics and Gynaecology, University of Ottawa, Ottawa, Ontario, Canada
| | - L Hopkins
- Department of Obstetrics and Gynaecology, University of Ottawa, Ottawa, Ontario, Canada
| | - D Schramm
- Department of Otolaryngology, University of Ottawa, Ottawa, Ontario, Canada
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Singh SS, Biswas AK, Shirley P, Vijayachari P. Chelonitoxism in Andaman and Nicobar Island: A report on mass poisoning including a death of an adult. Toxicon 2016; 118:61-3. [PMID: 27103071 DOI: 10.1016/j.toxicon.2016.04.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 04/03/2016] [Accepted: 04/12/2016] [Indexed: 11/18/2022]
Abstract
Chelonitoxism is a type of seafood poisoning which usually occurs due to consumption of certain marine turtle flesh. As the pharmacology or chemistry of the toxin is still unknown, antidote or treatment to chelonitoxism is unavailable. The symptoms can vary from common gastro-intestinal symptoms to neurological manifestations and even death. This case report of community poisoning following consumption of turtle meat includes the death of an adult male (56 yrs.) being reported for the first time in the Great Nicobar Island, Andaman and Nicobar (A&N) Islands, India in August 2012. The patient encountered common gastrointestinal symptoms after one day of ingestion of green turtle flesh and later, he developed neurological symptoms and did not respond to symptomatic treatment and expired after four days after the consumption. However, out of 30 villagers who took the same food, six others developed symptoms and recovered within a period of 3-7 days while two pets (a dog and a cat) died within 24 hours as they were fed with the same food. In spite of several existing wildlife protection acts, catching a turtle and making them a source of food-celebration is quite common in coastal areas of the Indian Ocean and the Bay of Bengal which includes A&N Islands. A proper monitoring and follow-up of the food-borne diseases along with a wide range of explorative health education protocol should be implemented especially for the people who are not reachable via media to avoid such incidents in future.
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Affiliation(s)
- S S Singh
- GB Pant Hospital, Port Blair, A&N Island, India
| | - Ashok Kumar Biswas
- Andaman and Nicobar Institute of Medical Sciences, Port Blair, A&N Islands, India.
| | - P Shirley
- Primary Health Centre, Campbell Bay, Great Nicobar, India
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Bougie O, Lortie K, Chen I, Shenassa H, Singh SS. Treatment of Asherman’s Syndrome in an Outpatient Hysteroscopy Setting. J Minim Invasive Gynecol 2015; 22:S122. [DOI: 10.1016/j.jmig.2015.08.356] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Chen I, Shen M, Singh SS, Lalani S, Wen SW. The Association Between Surgically-Diagnosed Endometriosis and Adverse Pregnancy Outcomes. J Minim Invasive Gynecol 2015; 22:S72-S73. [DOI: 10.1016/j.jmig.2015.08.193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kumar S, Dwivedi SK, Singh SS, Kumar S, Sundaram RK, Mall AK. Characterization of rice (Oryza sativa L.) genotypes on the basis of morpho-physiological and biochemical traits grown under aerobic situation in rainfed ecosystem . J Environ Biol 2015; 36:999-1005. [PMID: 26364481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The objective of the present study was to examine the effect of aerobic situation on yield, physiological and biochemical traits of advanced breeding lines of rice. Experiment was conducted with two set of rice genotypes under two water regimes (aerobic and irrigated), during three consecutive wet seasons 2010-2012. Significant decrease in yield was observed in rice genotypes grown under aerobic situation as compared to the irrigated ones. Promising rice genotypes having the ability to maintain high plant biomass, harvest index, early vegetative vigour, improved physiological and biochemical traits in terms of relative water content (RWC), leaf area index (LAI), total soluble sugar, starch, protien and proline content help to sustain higher grain yield under aerobic situation. The yield gap between aerobic and irrigated rice ranged between 24% to 68%. Grain yield showed positive correlation with harvest index (0.434), test weight (0.647), plant biomass (0.411) and effective tiller numbers (0.473), whereas spikelet sterility was negative associated (-0.380). The current study suggested that promising genotypes viz., IR77298-14-1-2-130-2, IR84899-B-182-3-1-1-2, IR84887-B-157-38-1-1-3 and IR 84899-B-179-1-1-1-2 for aerobic situation, showing yield advantage due to better performance of physiological and biochemical traits, might be adopted in large area of rainfed ecosystem as well as in irrigated areas where water scarcity was a major problem.
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Mishra AK, Singh PK, Singh P, Singh A, Singh SS, Srivastava A, Srivastava AK, Sarma HK. Phylogeny and evolutionary genetics ofFrankiastrains based on 16S rRNA andnifD-K gene sequences. J Basic Microbiol 2015; 55:1013-20. [DOI: 10.1002/jobm.201400914] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 01/30/2015] [Indexed: 01/05/2023]
Affiliation(s)
- Arun Kumar Mishra
- Laboratory of Microbial Genetics; Department of Botany; Banaras Hindu University; Varanasi India
| | | | - Prashant Singh
- Laboratory of Microbial Genetics; Department of Botany; Banaras Hindu University; Varanasi India
- Microbial Culture Collection (MCC); National Centre for Cell Science (NCCS); Pune India
| | - Anumeha Singh
- Laboratory of Microbial Genetics; Department of Botany; Banaras Hindu University; Varanasi India
| | | | - Amrita Srivastava
- Laboratory of Microbial Genetics; Department of Botany; Banaras Hindu University; Varanasi India
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Singh P, Singh SS, Aboal M, Mishra AK. Decoding cyanobacterial phylogeny and molecular evolution using an evonumeric approach. Protoplasma 2015; 252:519-535. [PMID: 25226829 DOI: 10.1007/s00709-014-0699-8] [Citation(s) in RCA: 4] [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: 06/28/2014] [Accepted: 09/03/2014] [Indexed: 06/03/2023]
Abstract
Forty-one heterocystous cyanobacteria strains representing 12 cyanobacterial genera collected from all across India were assessed in phylogenetic and evolutionary perspectives. The structural gene 16S ribosomal RNA (rRNA) and the functional genes nifD and psbA were selected as molecular chronometers in this study. The phylogenetic analyses demonstrated the monophyly of heterocystous cyanobacteria with significant intermixing, along with establishing the polyphyly of Stigonematales, strongly supporting the need for re-amendments in cyanobacterial taxonomy and systematics. Molecular trends obtained did not clearly reflect the phenotypic affiliations, thus advocating for genetic characterizations using more molecular markers. Large-scale evonumeric extrapolations of gene sequence data of all the three molecular markers was performed to assess the evolutionary pace of heterocystous cyanobacteria on the basis of nucleotide diversity, recombination frequencies, and the DNA divergence between the sampled taxa. The obtained results tilted the evolutionary pace in favor of the less complex Nostocales thus indicating that possibly the simple non-branched forms are more flexible and adaptive for evolutionary diversifications as compared to the more complex and branched ones. This study hence represents a unique blend of molecular phylogeny with evogenomic sequence analyses for understanding the genetic diversity, phylogeny, and evolutionary pace within the heterocystous cyanobacteria.
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Affiliation(s)
- Prashant Singh
- Laboratory of Microbial Genetics, Department of Botany, Banaras Hindu University, Varanasi, 221005, India
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Singh SS, Kunui K, Minj RA, Singh P. Diversity and distribution pattern analysis of cyanobacteria isolated from paddy fields of Chhattisgarh, India. Journal of Asia-Pacific Biodiversity 2014. [DOI: 10.1016/j.japb.2014.10.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Siveen KS, Nguyen AH, Lee JH, Li F, Singh SS, Kumar AP, Low G, Jha S, Tergaonkar V, Ahn KS, Sethi G. Negative regulation of signal transducer and activator of transcription-3 signalling cascade by lupeol inhibits growth and induces apoptosis in hepatocellular carcinoma cells. Br J Cancer 2014; 111:1327-37. [PMID: 25101566 PMCID: PMC4183851 DOI: 10.1038/bjc.2014.422] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [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] [Revised: 06/23/2014] [Accepted: 07/03/2014] [Indexed: 02/06/2023] Open
Abstract
Background: Constitutive activation of signal transducer and activator of transcription signalling 3 (STAT3) has been linked with survival, proliferation and angiogenesis in a wide variety of malignancies including hepatocellular carcinoma (HCC). Methods: We evaluated the effect of lupeol on STAT3 signalling cascade and its regulated functional responses in HCC cells. Results: Lupeol suppressed constitutive activation of STAT3 phosphorylation at tyrosine 705 residue effectively in a dose- and time-dependent manner. The phosphorylation of Janus-activated kinases (JAKs) 1 and 2 and Src was also suppressed by lupeol. Pervanadate treatment reversed the downregulation of phospho-STAT3 induced by lupeol, thereby indicating the involvement of a phosphatase. Indeed, we observed that treatment with lupeol increased the protein and mRNA levels of SHP-2, and silencing of SHP-2 abolished the inhibitory effects of lupeol on STAT3 activation. Treatment with lupeol also downregulated the expression of diverse STAT3-regulated genes and decreased the binding of STAT3 to VEGF promoter. Moreover, the proliferation of various HCC cells was significantly suppressed by lupeol, being associated with substantial induction of apoptosis. Depletion of SHP-2 reversed the observed antiproliferative and pro-apoptotic effects of lupeol. Conclusions: Lupeol exhibited its potential anticancer effects in HCC through the downregulation of STAT3-induced pro-survival signalling cascade.
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Affiliation(s)
- K S Siveen
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - A H Nguyen
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - J H Lee
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - F Li
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - S S Singh
- 1] Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore [2] Cancer Science Institute of Singapore, Centre for Translational Medicine, 14 Medical Drive, Singapore 117599, Singapore
| | - A P Kumar
- 1] Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore [2] Cancer Science Institute of Singapore, Centre for Translational Medicine, 14 Medical Drive, Singapore 117599, Singapore [3] Biomedical Sciences, Faculty of Health Sciences, Curtin University, Perth, Western Australia 6009, Australia [4] Department of Biological Sciences, University of North Texas, Denton, TX 76203, USA
| | - G Low
- 1] Cancer Science Institute of Singapore, Centre for Translational Medicine, 14 Medical Drive, Singapore 117599, Singapore [2] Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - S Jha
- 1] Cancer Science Institute of Singapore, Centre for Translational Medicine, 14 Medical Drive, Singapore 117599, Singapore [2] Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - V Tergaonkar
- Institute of Molecular and Cell Biology, A*STAR, Biopolis Drive Proteos, Singapore, Singapore
| | - K S Ahn
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul 130-701, Republic of Korea
| | - G Sethi
- 1] Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore [2] Cancer Science Institute of Singapore, Centre for Translational Medicine, 14 Medical Drive, Singapore 117599, Singapore
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Das MK, Joshi H, Verma A, Singh SS, Adak T. Malaria among the Jarawas, a primitive and isolated tribe on the Andaman islands, India. Annals of Tropical Medicine & Parasitology 2013; 99:545-52. [PMID: 16156967 DOI: 10.1179/136485905x51418] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The Jarawas are a primitive Negrito tribe of the Andaman islands, India. The members of this tribe have been geographically and socially isolated from the other inhabitants of the islands. None had attended a hospital or health unit until 1997, when a Jarawa boy with a fractured leg was taken to a hospital in Port Blair, and successfully treated. Since then, increasing numbers of Jarawas have sought treatment at the hospital and/or begun to make other contact with non-Jarawas on the islands. No malaria had ever been reported in the tribe until 2001, when an outbreak of febrile illness triggered a malariological survey. Malarial parasites, all identified microscopically as Plasmodium falciparum, were detected in the bloodsmears of 30 of the 179 Jarawas investigated. Although most malaria among the non-Jarawa inhabitants of the islands is caused by P. vivax, only P. falciparum was detected when blood samples from 26 of the subjects were investigated in PCR-based assays. Genetic-diversity studies, based on the msp(1) and msp(2) polymorphic markers, also revealed a relatively low level of polymorphism in the P. falciparum parasites infecting the Jarawas, compared with that seen in other areas of India. It seems possible that malarial parasites have only recently reached the Jarawas, as the result of the weakening of the tribe's isolation from other humans on the Andaman islands.
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Affiliation(s)
- M K Das
- Malaria Research Centre, Field Station, Car Nicobar (Malacca), Andaman and Nicobar Islands, India
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Singh P, Singh SS, Elster J, Mishra AK. Molecular phylogeny, population genetics, and evolution of heterocystous cyanobacteria using nifH gene sequences. Protoplasma 2013; 250:751-764. [PMID: 23090238 DOI: 10.1007/s00709-012-0460-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Accepted: 09/26/2012] [Indexed: 06/01/2023]
Abstract
In order to assess phylogeny, population genetics, and approximation of future course of cyanobacterial evolution based on nifH gene sequences, 41 heterocystous cyanobacterial strains collected from all over India have been used in the present study. NifH gene sequence analysis data confirm that the heterocystous cyanobacteria are monophyletic while the stigonematales show polyphyletic origin with grave intermixing. Further, analysis of nifH gene sequence data using intricate mathematical extrapolations revealed that the nucleotide diversity and recombination frequency is much greater in Nostocales than the Stigonematales. Similarly, DNA divergence studies showed significant values of divergence with greater gene conversion tracts in the unbranched (Nostocales) than the branched (Stigonematales) strains. Our data strongly support the origin of true branching cyanobacterial strains from the unbranched strains.
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Affiliation(s)
- Prashant Singh
- Laboratory of Microbial Genetics, Department of Botany, Banaras Hindu University, Varanasi, 221005, India
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Mishra AK, Shukla E, Singh SS. Phylogenetic comparison among the heterocystous cyanobacteria based on a polyphasic approach. Protoplasma 2013; 250:77-94. [PMID: 22307204 DOI: 10.1007/s00709-012-0375-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2011] [Accepted: 01/03/2012] [Indexed: 05/31/2023]
Abstract
Phylogenetic comparison has been done among the selected heterocystous cyanobacteria belonging to the sections IV and V. The hierarchical cluster analysis based on antibiotics sensitivity showed a distant relationship between the members of Nostocales and Stigonematales. Thus, multiple antibiotic resistance pattern used as marker provide easy, fast, and reliable method for strain discrimination and genetic variability. However, morphological, physiological (both based on principal component analysis) and biochemical analysis grouped true branching cyanobacteria along with the members of section IV. Molecular analysis based on 16S rRNA gene sequences revealed that Hapalosiphon welwitschii and Westiellopsis sp. were grouped in cluster I whereas Scytonema bohnerii, a false branching genera showed a close proximity with Calothrix brevissima in cluster II. Cluster III of clade 2 included Nostoc calcicola and Anabaena oryzae which proved the heterogeneity at the generic level. Cluster IV the largest group of clade 2 based on 16S rRNA gene sequences includes six strains of the genera Nostoc, Anabaena, and Cylindrospermum showing ambiguous evolutionary relationship. In cluster IV, Anabaena sp. and Anabaena doliolum were phylogenetically linked by sharing 99% sequence similarity. Probably, they were of the same genetic makeup but appear differently under the diverse physiological conditions. Section IV showed polyphyletic origin whereas section V showed monophyletic origin. Results suggested that either morphological or physiological or biochemical or molecular attribute is not sufficient to provide true diversity and phylogeny of the cyanobacteria at the generic level and thus, a polyphasic approach would be more appropriate and reliable.
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Affiliation(s)
- Arun Kumar Mishra
- Laboratory of Microbial genetics, Department of Botany, Banaras Hindu University, Varanasi 221005, India.
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Osorio JS, Fraser BC, Graugnard DE, Singh SS, Drackley JK, Garrett EF, Loor JJ. Corium tissue expression of genes associated with inflammation, oxidative stress, and keratin formation in relation to lameness in dairy cows. J Dairy Sci 2012; 95:6388-96. [PMID: 22959934 DOI: 10.3168/jds.2011-5143] [Citation(s) in RCA: 11] [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: 11/13/2011] [Accepted: 05/30/2012] [Indexed: 01/26/2023]
Abstract
Objectives were to (1) determine the feasibility of performing hoof biopsies without impairing locomotion; (2) evaluate the feasibility of using biopsied tissue for quantitative PCR; and (3) compare relative gene expression among claws for several target genes. Biopsies were performed on 6 Holstein cows, yielding 4 tissue specimens per cow from front leg, right limb, and medial claw (claw position 3); rear leg, left limb, and lateral claw (claw position 5); and rear leg, right limb, medial claw (claw position 7). Cows were monitored for lameness daily for 7 d post-biopsy and then weekly for 8 wk. Histopathological analysis confirmed that tissue collected was from between the stratum corneum and dermis. Biopsied tissue was used for RNA extraction, including evaluation of yield and purity. The profile by claw position of 19 genes with key functions in cell differentiation, proliferation, inflammation, and keratin formation was assessed via quantitative reverse transcription-PCR. Other than transient disturbances in locomotion score in some cows during 2 to 4 d post-biopsy, no signs of pain, locomotion impairment, or clinical lameness were observed post-biopsy. Total RNA yields averaged 259.7±100, 447.8±288, and 496.4±118 μg/mg of tissue for claw positions 3, 5, and 7, respectively. The biopsy procedure was successful for obtaining corium for gene expression. Among 5 keratin proteins analyzed, only keratin 5 was expressed. Transcripts related to inflammation and oxidative stress (STAT3, MYD88, SOD2, and TLR4) were among the more abundant in corium tissue, but expression did not differ between claws. Biotinidase (BTD) expression was greater in claw 3 versus claw 5, whereas the ligand-activated nuclear receptor retinoic acid receptor-α (RXRA) was greater in claws 3 + 5 compared with claw 7. Overall, results from this pilot study revealed modest differences at the transcriptome level, suggesting that biotin availability and lipid metabolism differ between claw positions, whereas inflammation and oxidative stress seem to play an important role across claws. More comprehensive studies of the hoof transcriptome are required to improve our understanding of the mechanisms that link environmental and dietary factors to development of lameness.
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Affiliation(s)
- J S Osorio
- Department of Animal Sciences, University of Illinois, 1207 West Gregory Drive, Urbana 61801, USA
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Shukla E, Singh SS, Singh P, Mishra AK. Chemotaxonomy of heterocystous cyanobacteria using FAME profiling as species markers. Protoplasma 2012; 249:651-661. [PMID: 21761281 DOI: 10.1007/s00709-011-0303-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Accepted: 06/29/2011] [Indexed: 05/31/2023]
Abstract
The fatty acid methyl ester (FAME) analysis of the 12 heterocystous cyanobacterial strains showed different fatty acid profiling based on the presence/absence and the percentage of 13 different types of fatty acids. The major fatty acids viz. palmitic acid (16:0), hexadecadienoic acid (16:2), stearic acid (18:0), oleic acid (18:1), linoleic (18:2), and linolenic acid (18:3) were present among all the strains except Cylindrospermum musicola where oleic acid (18:1) was absent. All the strains showed high levels of polyunsaturated fatty acid (PUFAs; 41-68.35%) followed by saturated fatty acid (SAFAs; 1.82-40.66%) and monounsaturated fatty acid (0.85-24.98%). Highest percentage of PUFAs and essential fatty acid (linolenic acid; 18:3) was reported in Scytonema bohnerii which can be used as fatty acid supplement in medical and biotechnological purpose. The cluster analysis based on FAME profiling suggests the presence of two distinct clusters with Euclidean distance ranging from 0 to 25. S. bohnerii of cluster I was distantly related to the other strains of cluster II. The genotypes of cluster II were further divided into two subclusters, i.e., IIa with C. musicola showing great divergence with the other genotypes of IIb which was further subdivided into two groups. Subsubcluster IIb(1) was represented by a genotype, Anabaena sp. whereas subsubcluster IIb(2) was distinguished by two groups, i.e., one group having significant similarity among their three genotypes showed distant relation with the other group having closely related six genotypes. To test the validity of the fatty acid profiles as a marker, cluster analysis has also been generated on the basis of morphological attributes. Our results suggest that FAME profiling might be used as species markers in the study of polyphasic approach based taxonomy and phylogenetic relationship.
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Affiliation(s)
- Ekta Shukla
- Laboratory of Microbial genetics, Department of Botany, Banaras Hindu University, Varanasi, 221005, India.
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Srivastava A, Singh SS, Mishra AK. Sodium transport and mechanism(s) of sodium tolerance inFrankiastrains. J Basic Microbiol 2012; 53:163-74. [DOI: 10.1002/jobm.201100586] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Accepted: 02/16/2012] [Indexed: 11/06/2022]
Affiliation(s)
- Amrita Srivastava
- Laboratory of Microbial genetics, Department of Botany; Banaras Hindu University; Varanasi; India
| | - Satya Shila Singh
- Laboratory of Microbial genetics, Department of Botany; Banaras Hindu University; Varanasi; India
| | - Arun Kumar Mishra
- Laboratory of Microbial genetics, Department of Botany; Banaras Hindu University; Varanasi; India
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Yadav SK, Haldar C, Singh SS. Variation in melatonin receptors (Mel(1a) and Mel(1b)) and androgen receptor (AR) expression in the spleen of a seasonally breeding bird, Perdicula asiatica. J Reprod Immunol 2011; 92:54-61. [PMID: 21963392 DOI: 10.1016/j.jri.2011.08.003] [Citation(s) in RCA: 12] [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: 04/05/2011] [Revised: 07/20/2011] [Accepted: 08/09/2011] [Indexed: 11/28/2022]
Abstract
Daily variation in the peripheral level of melatonin plays a major role in integrating reproduction and environmental information for seasonally breeding birds. However, the variation in immunity and reproduction has never been assessed in any avian species on a 24 h time scale. Therefore, to understand the relationship between immune function and reproductive phases in a seasonally breeding bird, Perdicula asiatica, the Indian jungle bush quail, we studied the daily variation of melatonin and testosterone levels along with expression of their receptors Mel(1a), Mel(1b), and androgen receptor in the spleen during the reproductively active phase. Immunocytochemistry for the melatonin receptors Mel(1a) and Mel(1b) presented a differential distribution pattern. Western blot of splenic protein suggested a daily rhythm of melatonin receptors, while acrophases for the two melatonin receptors Mel(1a) and Mel(1b) differed by 4 h, suggesting that the expression of the receptors may peak at different times, causing more of either Mel(1a) or Mel(1b) to be available at a particular time to mediate function. The circulatory melatonin level correlated with percentage stimulation ratio of splenocytes and plasma interleukin-2 level, but did not correlate with testosterone or androgen receptor, suggesting that melatonin could be a major hormone imparting a time-of-day effect on the modulation of immune function in a seasonally breeding bird during the reproductively active phase.
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Affiliation(s)
- S K Yadav
- Department of Zoology, Banaras Hindu University, Varanasi 221005, India
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Singh SS, Muruganandam N, Chaaithanya IK, Bhattacharya D, Sugunan AP, Nayak AK, Roy A, Shriram AN, Vijayachari P. H1N1 influenza A outbreak among the Nicobarese, an aboriginal tribe of the Andaman and Nicobar Islands, India. Public Health 2011; 125:501-4. [PMID: 21839873 DOI: 10.1016/j.puhe.2011.05.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2010] [Revised: 03/04/2011] [Accepted: 05/27/2011] [Indexed: 11/29/2022]
Affiliation(s)
- S S Singh
- G.B. Pant Hospital, Port Blair, Andaman and Nicobar Islands, India
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Abstract
AIMS Chromium (III) is an insulinomimetic agent whose biological and/or environmental availability is frequently in the form of Cr(VI), which is known to be toxic. Wall-less mutant of Neurospora crassa (FGSC stock no. 4761) is known to possess insulin receptor in its cell membrane and hence is a good model for Cr toxicity studies. This study explores the toxicity of Cr(VI) and the possible consequences on simultaneous exposure to insulin in N. crassa. METHODS AND RESULTS Comet assay of N. crassa cells treated with 100 μmol l⁻¹ Cr(VI) showed up to 50% reduction in comet tail lengths when incubated simultaneously with 0.4 U insulin. Fluorescence measurement in Cr(VI)-treated cells using DCFH-DA showed six- to eightfold increase in free radical generation, which was reduced to fourfold by 0.4 U insulin. Annexin-V/PI Flow cytometry analysis indicated necrotic cell death up to 28.7 ± 3.6% and 68.6 ± 2.5% on Cr(VI) exposure at concentrations 100 and 500 μmol l⁻¹ which was reduced by 68.3 ± 3.2% and 48.9 ± 3.6%, respectively, upon addition of insulin. CONCLUSION Insulin-mediated protection from DNA damage by Cr(VI) is because of scavenging of free radicals liberated during exposure to Cr(VI). SIGNIFICANCE AND IMPACT OF THE STUDY Overall, Cr(VI) toxicity depends upon available insulin, indicating that Cr(VI) toxicity may be a serious issue in insulin-deficient individuals with diabetes.
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Affiliation(s)
- R R Gaddameedi
- Department of Biochemistry, Osmania University, Hyderabad, India
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Sharma S, Haldar C, Chaube SK, Laxmi T, Singh SS. Long-term melatonin administration attenuates low-LET gamma-radiation-induced lymphatic tissue injury during the reproductively active and inactive phases of Indian palm squirrels (Funambulus pennanti). Br J Radiol 2010; 83:137-51. [PMID: 20139262 DOI: 10.1259/bjr/73791461] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
A comparative analysis of low linear energy transfer (LET) gamma-radiation-induced damage in the lymphatic tissue of a tropical seasonal breeder, Indian palm squirrel (Funambulus pennanti), during its reproductively active phase (RAP) and inactive phase (RIP) was performed with simultaneous investigation of the effects of long-term melatonin pre-treatment (100 microg/100 g body weight). A total of 120 squirrels (60 during RAP and 60 during RIP) were divided into 12 groups and sacrificed at 4, 24, 48, 72 and 168 h following 5 Gy gamma-radiation exposure; control groups were excluded from exposure. Total leukocyte count and absolute lymphocyte count (ALC) and melatonin only of peripheral blood, stimulation index, thiobarbituric-acid-reactive substances (TBARS) level, superoxide dismutase (SOD) activity, and the apoptotic index of spleen as analysed by terminal deoxynucleotidyl transferase (TdT)-mediated deoxyuridine triphosphate (dUTP) nick-end labelling (TUNEL) noted at observed time-points were significantly reduced in melatonin pre-treated groups during RAP and RIP. Long-term melatonin pre-treatment mitigated radiation-induced alterations more prominently during RIP, as assessed by ALC, TBARS, SOD, TUNEL and caspase-3 activity, at some time-points. Our results demonstrate an inhibitory role of melatonin on caspase-3 activity in splenocytes during RAP and RIP following gamma-radiation-induced caspase-mediated apoptosis. Hence, we propose that melatonin might preserve the viability of immune cells of a seasonal breeder against background radiation, which is constantly present in the environment.
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Affiliation(s)
- S Sharma
- Pineal Research Laboratory, Department of Zoology, Banaras Hindu University, Varanasi-221005, India
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Mishra AK, Singh A, Singh SS. Diversity of Frankia
strains nodulating HippÖphae salicifolia
D. Don using FAME profiling as Chemotaxonomic markers. J Basic Microbiol 2010; 50:318-24. [DOI: 10.1002/jobm.200900313] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Singh SS, Dikshit AK. Optimization of the parameters for decolourization by Aspergillus niger of anaerobically digested distillery spentwash pretreated with polyaluminium chloride. J Hazard Mater 2010; 176:864-869. [PMID: 20022424 DOI: 10.1016/j.jhazmat.2009.11.116] [Citation(s) in RCA: 6] [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: 04/28/2009] [Revised: 11/22/2009] [Accepted: 11/23/2009] [Indexed: 05/28/2023]
Abstract
Molasses spentwash from distilleries is characterized by high COD and colour. The fungal decolourization of anaerobically digested molasses spentwash requires significant dilution. In this study, decolourization by Aspergillus niger isolate IITB-V8 was performed on polyaluminium chloride (PAC) treated anaerobically digested spentwash without dilution of wastewater. Optimization of parameters was studied using statistical experimental designs. In the first step, Plackett-Burman design was used for screening the important parameters. Glucose was taken as the carbon source for the growth of A. niger. KH(2)PO(4) and pH were found to be the important factors affecting decolourization. In the second step, Box-Behnken design was used to determine the optimum level of each of the significant parameters. A second-order polynomial was determined by the multiple regression analysis of the experimental data. The optimum values for the important factors to achieve maximum decolourization of 68.4% were 5.5 g/L Glucose, 1.2 g/L KH(2)PO(4) and 5 pH. The determination coefficient (R(2)) was 0.9973, which ensures adequate credibility of the model. The total decolourization obtained after fungal treatment was 86.8% which indicates fungal decolourization after pretreatment with PAC is a viable option for the treatment of digested molasses spentwash.
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Affiliation(s)
- S S Singh
- Centre for Environmental Science and Engineering, Indian Institute of Technology, Bombay, Powai, Mumbai 400 076, India.
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Singh SS, Singh A, Srivastava A, Singh P, Singh A, Mishra AK. Characterization of frankial strains isolated from Hippophae salicifolia D. Don, based on physiological, SDS–PAGE of whole cell proteins and RAPD PCR analyses. World J Microbiol Biotechnol 2009. [DOI: 10.1007/s11274-009-0260-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Singh A, Mishra AK, Singh SS, Sarma HK, Shukla E. Influence of iron and chelator on siderophore production inFrankiastrains nodulatingHippophae salicifoliaD. Don. J Basic Microbiol 2008; 48:104-11. [DOI: 10.1002/jobm.200700262] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Affiliation(s)
- J Mohindroo
- Department of Surgery and Radiology, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana - 141 004, Punjab, India
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Sugunan AP, Roy S, Shahina M, Shah WA, Bharadwaj AP, Singh SS, Thanasekaran K, Sathya Prakash M, Vijayachari P. Emergence of Vibrio cholerae O1 Inaba in Andaman & Nicobar Islands, India. J Public Health (Oxf) 2007; 29:308-9. [PMID: 17545217 DOI: 10.1093/pubmed/fdm032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- A P Sugunan
- Regional Medical Research Centre (Indian Council of Medical Research), Post Bag No. 13, Port Blair 744101, Andaman & Nicobar Islands, India
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Mathew GK, Singh SS, Swaminathan RG, Tenali SG. Laparotomy for post chemotherapy residue in ovarian germ cell tumors. J Postgrad Med 2006; 52:262-5. [PMID: 17102543] [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: 05/12/2023] Open
Abstract
BACKGROUND Primary conservative surgery and cisplatin-based chemotherapy have resulted in high cure rates in malignant ovarian germ cell tumors. A significant proportion of advanced tumors may have post-chemotherapy residue and it is important to distinguish necrosis or fibrosis without viable tumor from persistent viable tumor and teratoma. AIMS To evaluate the role of laparotomy in assessing the nature of post-chemotherapy residue in ovarian germ cell tumors. MATERIALS AND METHODS Eighty-three patients with malignant ovarian germ cell tumors seen at Cancer Institute, Chennai between 1992 and 2002 were studied. Sixty-eight patients completed combination chemotherapy with cisplatin regimes, of whom 35 had radiological residual masses. Twenty-nine out of these 35 patients underwent laparotomy to assess the nature of the residue. RESULTS On laparotomy, three patients had viable tumor, seven immature teratoma, three mature teratoma and 16 only necrosis or fibrosis. None of our patients with dysgerminoma, embryonal carcinoma, absence of teratoma element in the primary tumor and radiological residue of < 5 cm had viable tumor whereas all patients with tumors containing teratoma component initially had residual tumor. Absence of viable disease was higher in patients who had normalization of serum markers by two cycles of chemotherapy. CONCLUSION Our study suggests that patients with absence of teratoma element initially, radiological residue of< 5 cm and normalization of serum markers after two cycles of chemotherapy do not require surgery to assess the nature of post-chemotherapy residue. However, laparotomy should be performed in patients with tumors that initially contain teratoma element and in those with sluggish tumor marker response after two cycles of chemotherapy since they have a high chance of having viable post chemotherapy residue.
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Affiliation(s)
- G K Mathew
- Departments of Medical Oncology and Pathology, Cancer Institute (WIA), 18, Sardar Patel Road, Chennai - 600 036, India
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