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Chatterjee S, Ghosh R, Das S, Dubey S. Knowledge gaps in diabetic striatopathy and other movement disorders in diabetes. J Endocrinol Invest 2024; 47:1305-1307. [PMID: 37874460 DOI: 10.1007/s40618-023-02226-w] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 10/11/2023] [Indexed: 10/25/2023]
Affiliation(s)
- S Chatterjee
- Department of Endocrinology and Metabolism, Medical College and Hospital, Kolkata, India
| | - R Ghosh
- Department of General Medicine, Burdwan Medical College and Hospital, Kolkata, India
| | - S Das
- Department of Neuromedicine, Bangur Institute of Neurosciences, IPGMER and SSKM Hospital, Kolkata, India
| | - S Dubey
- Department of Neuromedicine, Bangur Institute of Neurosciences, IPGMER and SSKM Hospital, Kolkata, India.
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Ghosh R, León-Ruiz M, Mondal A, Dubey S, Benito-León J. Polyneuropathy in a pregnant woman with hyperemesis gravidarum: Do not forget dry beriberi. Neurol Perspect 2023; 3:100132. [PMID: 38124708 PMCID: PMC10732261 DOI: 10.1016/j.neurop.2023.100132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Affiliation(s)
- R. Ghosh
- Department of General Medicine, Burdwan Medical College and Hospital, Burdwan, West Bengal, India
| | - M. León-Ruiz
- Section of Clinical Neurophysiology, Department of Neurology, University Hospital “La Paz”, Madrid, Spain
| | - A.S. Mondal
- Department of Neuromedicine, Bankura Sammilani Medical College and Hospital, Bankura, West Bengal, India
| | - S. Dubey
- Department of Neuromedicine, Bangur Institute of Neurosciences, Kolkata, West Bengal, India
| | - J. Benito-León
- Department of Neurology, University Hospital “12 de Octubre”, Madrid, Spain
- Research Institute (i+12), University Hospital “12 de Octubre”, Madrid, Spain
- Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Department of Medicine, Complutense University, Madrid, Spain
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Bashar AK, Kabir MN, Ghosh R, Sajedin M, Rahman MM. Early Inflammatory Response of Dental Pulp in Response to Biodentin and Mineral Trioxide Aggregate as Pulp-capping Agents. Mymensingh Med J 2023; 32:1038-1045. [PMID: 37777899] [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: 10/02/2023]
Abstract
This study was carried out to observe immediate inflammatory response of Human Dental Pulp capped with Biodentin and Mineral Trioxide Aggregate (MTA). This prospective clinical study was carried out in the Department of Conservative Dentistry and Endodontics together with the Department of Orthodontia, Bangabandhu Sheikh Mujib Medical University (BSMMU), Bangladesh from 2016 to 2018. A total number of eighty (80) permanent premolars teeth planned to be extracted for orthodontic alignment of occlusion were used as study sample. Those teeth were divided into two groups; Group A and Group B, having 40 teeth in each (n=40). An occlusal exposure of approximately 1.5mm in diameter was made. Then in -group A, exposed pulp were capped with 2-mm-thick layer of sterile Biodentin (Septodont) and in-group B with ProRoot White MTA (Dentsply). After pulp capping with the experimental material in respective group, cavities in all teeth were restored with glass ionomer cement. After 24 hours the teeth were extracted, fixed in 10% buffered formalin solution, then decalcified by 10.0% nitric acid and embedded in paraffin. Now 2 to 3-micron-thick serial sections were made in the linguo-buccal plane and finally stained with hematoxylin-eosin. Now pulpal inflammation in respect of type, intensity and extension, were determined by using a predetermined evaluation criterion under an optical microscope at 40× magnifications. Statistical differences among the experimental groups were analyzed by Descriptive analysis (Cross Tabulation) (p<0.05). Histologically both the tested materials produced immediate pulpal tissue reaction. 'Biodentin' found to be most immediate pulpal tissue reactive (reactive in 100% cases), Whereas, MTA produced immediate tissue reaction only in 50.0% cases. Immediate pulpal inflammatory reaction in response to tested material found to be statistically significant different between 'Biodentin' and 'MTA' (p=0.001). According to present study Biodentin is found to be more immediate pulpal tissue reactive than MTA when used as a pulp capping material.
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Affiliation(s)
- A K Bashar
- Dr AKM Bashar, Professor, Department of Conservative Dentistry & Endodontics, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh; E-mail:
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Ghosh R, León-Ruiz M, Jana A, Roy D, Ghosh T, Benito-León J. Bálint syndrome in a patient with drug-resistant epilepsy having underlying X-linked lissencephaly with subcortical band heterotopia/"double cortex" syndrome. Neurol Perspect 2023; 3:100135. [PMID: 38124709 PMCID: PMC10732260 DOI: 10.1016/j.neurop.2023.100135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Affiliation(s)
- R. Ghosh
- Department of General Medicine, Burdwan Medical College and Hospital, Burdwan, West Bengal, India
| | - M. León-Ruiz
- Section of Clinical Neurophysiology, Department of Neurology, University Hospital “La Paz”, Madrid, Spain
| | - A. Jana
- Department of Radiodiagnosis, Burdwan Medical College and Hospital, Burdwan, West Bengal, India
| | - D. Roy
- All India Institute of Medical Sciences (AIIMS), Jodhpur, Rajasthan, India
- Indian Institute of Technology (IIT), Madras, Tamil Nadu, India
- School of Humanities, Indira Gandhi National Open University, New Delhi, India
| | - T. Ghosh
- Department of Anatomy, Burdwan Medical College and Hospital, Burdwan, West Bengal, India
| | - J. Benito-León
- Department of Neurology, University Hospital “12 de Octubre”, Madrid, Spain
- Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Department of Medicine, Complutense University, Madrid, Spain
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Ghosh R, León-Ruiz M, Dubey S, Chakraborty A, Benito-León J. Higher-level gait disorder as a presenting manifestation of progressive supranuclear palsy: a video case report. Rev Neurol 2023; 77:101-104. [PMID: 37489858 PMCID: PMC10662190 DOI: 10.33588/rn.7704.2022393] [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: 02/03/2023] [Indexed: 07/26/2023]
Abstract
INTRODUCTION Frontal gait disorder/gait apraxia is a higher-order motor deficit with various causes, characterized by difficulties with gait initiation, such as freezing or ignition failure. We aimed to report a patient who presented with progressive higher-level gait disorder and fall episodes as the initial manifestations of progressive supranuclear palsy (PSP). Patient data were obtained from medical records from the Department of General Medicine, Burdwan Medical College and Hospital (Burdwan, West Bengal, India). CASE REPORT A 58-year-old previously healthy woman presented with a gait disorder and fall episodes. Detailed neurological examination highlighted characteristic facial appearance (wide-eyed staring, furrowing of the forehead with a frowning expression, and fixed expression of the lower face). She was hypokinetic-rigid with symmetrical signs and predominant axial rigidity with retrocolic trunk and neck posture. Gait examination revealed a higher-level gait pattern characterized by an exhibition of profound start hesitation requiring assistance from nearby objects/persons. Once walking was underway, steps became relatively better, but ineffective gait re-emerged when she attempted turning. She had short strides, freezing, broad stance base, disequilibrium, slow leg movement, shuffling, and loss of normal fluidity of trunk and limbs. Postural reflexes were impaired. Brain magnetic resonance imaging revealed atrophy of the midbrain, dilated aqueduct of Sylvius and third ventricle, atrophy of frontal lobes and typical hummingbird sign. Diagnosis of probable PSP was finally made. CONCLUSIONS Several etiologies, including PSP, should be considered in appropriate clinical contexts if gait examination demonstrates a higher-order gait disorder.
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Affiliation(s)
- R Ghosh
- Burdwan Medical College and Hospital, Burdwan, India
| | - M León-Ruiz
- Hospital Universitario La Paz, Madrid, España
| | - S Dubey
- Institute of Post Graduate Medical Education and Research and SSKM Hospital , Kolkata, India
| | - A Chakraborty
- Institute of Post Graduate Medical Education and Research and SSKM Hospital , Kolkata, India
| | - J Benito-León
- Universidad Complutense de Madrid, Madrid, España
- Hospital Universitario 12 de Octubre, Madrid, España
- CIBERNED. Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas, Madrid, España
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Erchick DJ, Hazel EA, Katz J, Lee ACC, Diaz M, Wu LSF, Yoshida S, Bahl R, Grandi C, Labrique AB, Rashid M, Ahmed S, Roy AD, Haque R, Shaikh S, Baqui AH, Saha SK, Khanam R, Rahman S, Shapiro R, Zash R, Silveira MF, Buffarini R, Kolsteren P, Lachat C, Huybregts L, Roberfroid D, Zeng L, Zhu Z, He J, Qiu X, Gebreyesus SH, Tesfamariam K, Bekele D, Chan G, Baye E, Workneh F, Asante KP, Kaali EB, Adu-Afarwuah S, Dewey KG, Gyaase S, Wylie BJ, Kirkwood BR, Manu A, Thulasiraj RD, Tielsch J, Chowdhury R, Taneja S, Babu GR, Shriyan P, Ashorn P, Maleta K, Ashorn U, Mangani C, Acevedo-Gallegos S, Rodriguez-Sibaja MJ, Khatry SK, LeClerq SC, Mullany LC, Jehan F, Ilyas M, Rogerson SJ, Unger HW, Ghosh R, Musange S, Ramokolo V, Zembe-Mkabile W, Lazzerini M, Rishard M, Wang D, Fawzi WW, Minja DTR, Schmiegelow C, Masanja H, Smith E, Lusingu JPA, Msemo OA, Kabole FM, Slim SN, Keentupthai P, Mongkolchati A, Kajubi R, Kakuru A, Waiswa P, Walker D, Hamer DH, Semrau KEA, Chaponda EB, Chico RM, Banda B, Musokotwane K, Manasyan A, Pry JM, Chasekwa B, Humphrey J, Black RE. Vulnerable newborn types: analysis of subnational, population-based birth cohorts for 541 285 live births in 23 countries, 2000-2021. BJOG 2023. [PMID: 37156239 DOI: 10.1111/1471-0528.17510] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 04/04/2023] [Accepted: 04/07/2023] [Indexed: 05/10/2023]
Abstract
OBJECTIVE To examine prevalence of novel newborn types among 541 285 live births in 23 countries from 2000 to 2021. DESIGN Descriptive multi-country secondary data analysis. SETTING Subnational, population-based birth cohort studies (n = 45) in 23 low- and middle-income countries (LMICs) spanning 2000-2021. POPULATION Liveborn infants. METHODS Subnational, population-based studies with high-quality birth outcome data from LMICs were invited to join the Vulnerable Newborn Measurement Collaboration. We defined distinct newborn types using gestational age (preterm [PT], term [T]), birthweight for gestational age using INTERGROWTH-21st standards (small for gestational age [SGA], appropriate for gestational age [AGA] or large for gestational age [LGA]), and birthweight (low birthweight, LBW [<2500 g], nonLBW) as ten types (using all three outcomes), six types (by excluding the birthweight categorisation), and four types (by collapsing the AGA and LGA categories). We defined small types as those with at least one classification of LBW, PT or SGA. We presented study characteristics, participant characteristics, data missingness, and prevalence of newborn types by region and study. RESULTS Among 541 285 live births, 476 939 (88.1%) had non-missing and plausible values for gestational age, birthweight and sex required to construct the newborn types. The median prevalences of ten types across studies were T+AGA+nonLBW (58.0%), T+LGA+nonLBW (3.3%), T+AGA+LBW (0.5%), T+SGA+nonLBW (14.2%), T+SGA+LBW (7.1%), PT+LGA+nonLBW (1.6%), PT+LGA+LBW (0.2%), PT+AGA+nonLBW (3.7%), PT+AGA+LBW (3.6%) and PT+SGA+LBW (1.0%). The median prevalence of small types (six types, 37.6%) varied across studies and within regions and was higher in Southern Asia (52.4%) than in Sub-Saharan Africa (34.9%). CONCLUSIONS Further investigation is needed to describe the mortality risks associated with newborn types and understand the implications of this framework for local targeting of interventions to prevent adverse pregnancy outcomes in LMICs.
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Affiliation(s)
- D J Erchick
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - E A Hazel
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - J Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - A C C Lee
- Department of Pediatric Newborn Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - M Diaz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - L S F Wu
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - S Yoshida
- Department of Maternal, Newborn, Child and Adolescent Health and Ageing, World Health Organization, Geneva, Switzerland
| | - R Bahl
- Department of Maternal, Newborn, Child and Adolescent Health and Ageing, World Health Organization, Geneva, Switzerland
| | - C Grandi
- Argentine Society of Paediatrics, Ciudad Autónoma de Buenos Aires, Argentina
| | - A B Labrique
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - M Rashid
- IntraHealth International, Dhaka, Bangladesh
| | - S Ahmed
- Projahnmo Research Foundation, Dhaka, Bangladesh
| | - A D Roy
- Projahnmo Research Foundation, Dhaka, Bangladesh
| | - R Haque
- JiVitA Maternal and Child Health Research Project, Rangpur, Bangladesh
| | - S Shaikh
- JiVitA Maternal and Child Health Research Project, Rangpur, Bangladesh
| | - A H Baqui
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - S K Saha
- Child Health Research Foundation, Dhaka, Bangladesh
| | - R Khanam
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - S Rahman
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - R Shapiro
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - R Zash
- Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - M F Silveira
- Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
| | - R Buffarini
- Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
| | - P Kolsteren
- Department of Food Technology, Safety and Health, Ghent University, Ghent, Belgium
| | - C Lachat
- Department of Food Technology, Safety and Health, Ghent University, Ghent, Belgium
| | - L Huybregts
- Department of Food Technology, Safety and Health, Ghent University, Ghent, Belgium
- Poverty, Health and Nutrition Division, International Food Policy Research Institute, Washington, DC, USA
| | - D Roberfroid
- Medicine Department, Faculty of Medicine, University of Namur, Namur, Belgium
| | - L Zeng
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Z Zhu
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - J He
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, China
| | - X Qiu
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, China
| | - S H Gebreyesus
- Department of Nutrition and Dietetics, School of Public Health, Addis Ababa University, Addis Ababa, Ethiopia
| | - K Tesfamariam
- Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - D Bekele
- Department of Obstetrics and Gynecology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - G Chan
- Department of Obstetrics and Gynecology, St. Paul's Hospital Millennium Medical College, Addis Ababa, Ethiopia
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - E Baye
- Department of Pediatric Newborn Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - F Workneh
- Addis Continental Institute of Public Health, Addis Ababa, Ethiopia
| | - K P Asante
- Kintampo Health Research Centre, Research and Development Division, Kintampo, Ghana
| | - E B Kaali
- Kintampo Health Research Centre, Research and Development Division, Kintampo, Ghana
| | - S Adu-Afarwuah
- Department of Nutrition and Food Science, University of Ghana, Accra, Ghana
| | - K G Dewey
- Institute for Global Nutrition, Department of Nutrition, University of California, Davis, California, USA
| | - S Gyaase
- Department of Statistics, Kintampo Health Research Centre, Kintampo, Ghana
| | - B J Wylie
- Department of Obstetrics and Gynecology, Columbia University Medical Center, New York, New York, USA
| | - B R Kirkwood
- Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
| | - A Manu
- Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
- University of Ghana School of Public Health, Accra, Ghana
| | | | - J Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC, USA
| | - R Chowdhury
- Centre for Health Research and Development, Society for Applied Studies, Delhi, India
| | - S Taneja
- Centre for Health Research and Development, Society for Applied Studies, Delhi, India
| | - G R Babu
- Department of Population Medicine, College of Medicine, QU Health, Qatar University, Doha, Qatar
| | - P Shriyan
- Indian Institute of Public Health, Public Health Foundation of India, Bengaluru, India
| | - P Ashorn
- Center for Child, Adolescent and Maternal Health Research, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - K Maleta
- School of Global and Public Health, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - U Ashorn
- Center for Child, Adolescent and Maternal Health Research, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - C Mangani
- School of Global and Public Health, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - S Acevedo-Gallegos
- National Institute of Perinatology, Maternal-Fetal Medicine Department, Mexico City, Mexico
| | - M J Rodriguez-Sibaja
- National Institute of Perinatology, Maternal-Fetal Medicine Department, Mexico City, Mexico
| | - S K Khatry
- Nepal Nutrition Intervention Project - Sarlahi (NNIPS), Kathmandu, Nepal
| | - S C LeClerq
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Nepal Nutrition Intervention Project - Sarlahi (NNIPS), Kathmandu, Nepal
| | - L C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - F Jehan
- Department of Paediatrics and Child Health, The Aga Khan University, Karachi, Pakistan
| | - M Ilyas
- The Aga Khan University, Karachi, Pakistan
| | - S J Rogerson
- Department of Infectious Diseases, University of Melbourne, Doherty Institute, Melbourne, Victoria, Australia
| | - H W Unger
- Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
| | - R Ghosh
- Institute for Global Health Sciences, Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, USA
| | - S Musange
- School of Public Health, College of Medicine and Health Sciences, University of Rwanda, Kigali, Rwanda
| | - V Ramokolo
- HIV and Other Infectious Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa
- Gertrude H Sergievsky Center, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, New York, USA
| | - W Zembe-Mkabile
- Health Systems Research Unit, South African Medical Research Council, Cape Town, South Africa
- College Graduate of Studies, University of South Africa, Johannesburg, South Africa
| | - M Lazzerini
- Institute for Maternal and Child Health - IRCCS 'Burlo Garofolo', WHO Collaborating Centre for Maternal and Child Health, Trieste, Italy
| | - M Rishard
- University Obstetrics Unit, De Soysa Hospital for Women, Colombo, Sri Lanka
- Department of Obstetrics & Gynaecology, University of Colombo, Colombo, Sri Lanka
| | - D Wang
- Department of Global and Community Health, College of Public Health, George Mason University, Fairfax, Virginia, USA
| | - W W Fawzi
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - D T R Minja
- National Institute for Medical Research, Tanga Centre, Tanga, Tanzania
| | - C Schmiegelow
- Centre for Medical Parasitology, Department for Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - H Masanja
- Ifakara Health Institute, Dar es Salaam, Tanzania
| | - E Smith
- Department of Global Health, Milken Institute School of Public Health, Washington, DC, USA
| | - J P A Lusingu
- National Institute for Medical Research, Dar es Salaam, Tanzania
| | - O A Msemo
- National Institute for Medical Research, Dar es Salaam, Tanzania
| | - F M Kabole
- Ministry of Health Zanzibar, Zanzibar, Tanzania
| | - S N Slim
- Ministry of Health Zanzibar, Zanzibar, Tanzania
| | - P Keentupthai
- College of Medicine and Public Health, Ubon Ratchathani University, Ubon Ratchathani, Thailand
| | - A Mongkolchati
- ASEAN Institute for Health Development, Mahidol University, Salaya, Thailand
| | - R Kajubi
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - A Kakuru
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - P Waiswa
- Department of Health Policy Planning and Management, Makerere University School of Public Health, New Mulago Hospital Complex, Kampala, Uganda
- Division of Global Health, Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
| | - D Walker
- Institute for Global Health Sciences and Department of Obstetrics and Gynecology, University of California San Francisco, San Francisco, California, USA
| | - D H Hamer
- Department of Global Health, Boston University School of Public Health, Boston, Massachusetts, USA
- Section of Infectious Diseases, Department of Medicine, Boston University Chobanian & Avedisian School of Medicine, Boston, Massachusetts, USA
| | - K E A Semrau
- Ariadne Labs, Brigham and Women's Hospital and Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
- Division of Global Health Equity & Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - E B Chaponda
- Department of Biological Sciences, School of Natural Sciences, University of Zambia, Lusaka, Zambia
| | - R M Chico
- Department of Disease Control, Faculty of Infectious & Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK
| | - B Banda
- Research Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - K Musokotwane
- Health Specialist PMTCT and Pediatric AIDS, UNICEF, Lusaka, Zambia
| | - A Manasyan
- University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - J M Pry
- Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - B Chasekwa
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - J Humphrey
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - R E Black
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
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Ghosh R, Dubey S, Roy D, Benito-León J. Pure alexia as a presenting manifestation of scrub typhus. Neurologia 2023; 38:307-309. [PMID: 37169472 DOI: 10.1016/j.nrleng.2022.04.005] [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] [Received: 12/11/2021] [Accepted: 04/29/2022] [Indexed: 05/13/2023] Open
Affiliation(s)
- R Ghosh
- Department of General Medicine, Burdwan Medical College & Hospital, Burdwan, West Bengal, India
| | - S Dubey
- Department of Neuromedicine, Bangur Institute of Neurosciences, Institute of Post Graduate Medical Education and Research & SSKM Hospital, Kolkata, West Bengal, India
| | - D Roy
- Department of Biochemistry, All India Institute of Medical Sciences (AIIMS), Jodhpur, Rajasthan, India; Indian Institute of Technology (IIT), Madras, Tamil Nadu, India
| | - J Benito-León
- Department of Neurology, University Hospital "12 de Octubre", Madrid, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain; Department of Medicine, Complutense University, Madrid, Spain.
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Ghosh R, León-Ruiz M, Bole K, Bandyopadhyay S, Dubey S, Benito-León J. Bálint syndrome as the presenting manifestation of adrenoleukodystrophy. Neurol Perspect 2023; 3:100124. [PMID: 37641794 PMCID: PMC10461572 DOI: 10.1016/j.neurop.2023.100124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Affiliation(s)
- R. Ghosh
- Department of General Medicine, Burdwan Medical College and Hospital, Burdwan, West Bengal, India
| | - M. León-Ruiz
- Section of Clinical Neurophysiology, Department of Neurology, University Hospital “La Paz”, Madrid, Spain
| | - K. Bole
- Department of Neuromedicine, Bangur Institute of Neurosciences, Institute of Post Graduate Medical Education and Research & SSKM Hospital, Kolkata, West Bengal, India
| | - S. Bandyopadhyay
- Department of General Medicine, Burdwan Medical College and Hospital, Burdwan, West Bengal, India
| | - S. Dubey
- Department of Neuromedicine, Bangur Institute of Neurosciences, Institute of Post Graduate Medical Education and Research & SSKM Hospital, Kolkata, West Bengal, India
| | - J. Benito-León
- Department of Neurology, University Hospital “12 de Octubre”, Madrid, Spain
- Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Department of Medicine, Complutense University, Madrid, Spain
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Dubey M, Ray P, Ghosh R, Bhattacharyya A, Dhor P, Chatterjee S, Chatterjee S, Dubey S, Mitchell A, Benito-León J. Health-related quality of life and perceived stress of informal caregivers of children and adolescents with intellectual disabilities and ADHD. Neurol Perspect 2023; 3:100120. [PMID: 37273896 PMCID: PMC10237619 DOI: 10.1016/j.neurop.2023.100120] [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] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Introduction Informal caregivers of children and adolescents with intellectual disabilities and attention deficit/hyperactivity disorder (ADHD) face numerous challenges. However, no study has yet compared the HRQoL of the caregivers of children and adolescents with these two conditions. We aimed to compare the HRQoL and perceived stress of caregivers of children and adolescents with intellectual disabilities and ADHD. Methods The HRQoL and perceived stress of informal caregivers of children and adolescents with intellectual disabilities and ADHD (40 in each group) were compared using the perceived stress scale and the Quality of Life Enjoyment and Satisfaction Questionnaire - Short Form, respectively. Results HRQoL was significantly worse in most dimensions in caregivers of children and adolescents with severe ADHD than in caregivers of children and adolescents with severe intellectual disabilities. However, perceived stress was similar. Conclusion Differences in the impact of intellectual disability and ADHD on family members' HRQoL should be considered while developing educational programs for patients and their families.
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Affiliation(s)
- M.J. Dubey
- Department of Psychiatry, Berhampore Mental Hospital, Berhampore, Murshidabad, West Bengal, India
| | - P. Ray
- Department of Psychiatry, Institute of Psychiatry (IOP), Institute of Post-graduate Medical Education and Research (IPGME&R), Kolkata, West Bengal, India
| | - R. Ghosh
- Department of General Medicine, Burdwan Medical College, and Hospital, Burdwan, West Bengal, India
| | - A.K. Bhattacharyya
- Department of Psychiatry, Institute of Psychiatry (IOP), Institute of Post-graduate Medical Education and Research (IPGME&R), Kolkata, West Bengal, India
| | - P. Dhor
- Department of Psychiatry, College of Medicine and JNM Hospital, Kalyani, Nadia, West Bengal, India
| | - S. Chatterjee
- Department of Psychiatry, Institute of Psychiatry (IOP), Institute of Post-graduate Medical Education and Research (IPGME&R), Kolkata, West Bengal, India
| | - S. Chatterjee
- Department of Medicine, Patliputra Medical College, and Hospital, Dhanbad, Jharkhand, India
| | - S. Dubey
- Department of Neuromedicine, Bangur Institute of Neurosciences (BIN), Kolkata, West Bengal, India
| | - A.J. Mitchell
- University Hospitals of Leicester, University of Leicester, Leicester, UK
| | - J. Benito-León
- Department of Neurology, University Hospital “12 de Octubre”, Madrid, Spain
- Centro de Investigación Biomédica en Red Sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Department of Medicine, Complutense University, Madrid, Spain
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Ghosh R, Moreno-García S, Roy D, Dubey S, Benito-León J. Typhoid fever presenting with central and peripheral nervous system involvement. Neurología (English Edition) 2023; 38:134-136. [PMID: 36990627 DOI: 10.1016/j.nrleng.2022.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/23/2022] [Indexed: 03/29/2023] Open
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Sahoo MR, Barik A, Ghosh R, Kuila S, Tiwary S, Babu PD, Kaushik SD, Vishwakarma PN. Manganese substitution induced magnetic transformation and magnetoelectricity in SrFe 12O 19. Phys Chem Chem Phys 2023; 25:2386-2400. [PMID: 36597999 DOI: 10.1039/d2cp03057h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this study, manganese substituted strontium hexaferrite (SrFe12-xMnxO19; x = 0, 3, 5, and 7) prepared by the sol-gel auto-combustion method are studied. We observed that the substituted Mn preferentially goes to the 2a and 12k sites of Fe. Raman modes related to the 12k site suggest the stiffening of the lattice. The transformation of the grain's shape from hexagonal (x = 0 and 3) to rhombohedral (x = 7) was observed, as shown in the micrographs obtained from FESEM. The thermomagnetic curves show the shift of TC to lower temperatures with the increase in the Mn content. From x = 5 onwards, the growth of another magnetic phase (FiM2) of lower coercivity apart from the parent phase (FiM1) of higher coercivity is seen. The FiM2 phase was found to increase with the Mn content in the sample (16.4(3)% for x = 5 but 66.2(5)% for x = 7). Although the magnetization for both FiM1 and FiM2 decreases with the increase in temperature, both magnetic phases behave in contrast to each other for x = 5 and x = 7. The study suggests a transformation of the compound from high magnetic anisotropy (x = 0) to low magnetic anisotropy (x = 7). The x = 5 composition sample displays the highest value of the first-order ME coefficient (0.83(2) mV × cm-1 × Oe-1). The observed value for x = 5 composition is ∼2.5 times higher than that of the parent x = 0 composition sample (0.33(2) mV × cm-1 × Oe-1). The studies thus suggest that the x = 5 composition is one of the viable candidates for magnetoelectric applications.
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Affiliation(s)
- M R Sahoo
- Department of Physics and Astronomy, National Institute of Technology, Rourkela, Odisha 769008, India.
| | - A Barik
- Department of Physics and Astronomy, National Institute of Technology, Rourkela, Odisha 769008, India.
| | - R Ghosh
- Department of Physics and Astronomy, National Institute of Technology, Rourkela, Odisha 769008, India.
| | - S Kuila
- Department of Physics and Astronomy, National Institute of Technology, Rourkela, Odisha 769008, India.
| | - Sweta Tiwary
- Department of Physics and Astronomy, National Institute of Technology, Rourkela, Odisha 769008, India.
| | - P D Babu
- UGC DAE Consortium for Scientific Research, Mumbai Centre, BARC, Mumbai 400085, India
| | - S D Kaushik
- UGC DAE Consortium for Scientific Research, Mumbai Centre, BARC, Mumbai 400085, India
| | - P N Vishwakarma
- Department of Physics and Astronomy, National Institute of Technology, Rourkela, Odisha 769008, India.
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Ghosh R, León-Ruiz M, Das S, Mandal A, Roy D, Benito-León J. Multifocal neuraxial involvement in acute methanol intoxication: A series of two patients from rural India. Neurol Perspect 2023; 3:100114. [PMID: 36908756 PMCID: PMC9997756 DOI: 10.1016/j.neurop.2023.100114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- R Ghosh
- Department of General Medicine, Burdwan Medical College and
Hospital, Burdwan, West Bengal, India
| | - M. León-Ruiz
- Section of Clinical Neurophysiology, Department of
Neurology, University Hospital "La Paz", Madrid, Spain
| | - S. Das
- Department of Neuromedicine, Bangur Institute of
Neurosciences (BIN), Kolkata, West Bengal, India
| | - A. Mandal
- Department of General Medicine, Burdwan Medical College and
Hospital, Burdwan, West Bengal, India
| | - D. Roy
- Department of Biochemistry, All India Institute of Medical
Sciences (AIIMS), Patna, Bihar, India
- Indian Institute of Technology (IIT), Madras, Tamil Nadu,
India
- School of Sciences, Indira Gandhi National Open University,
New Delhi, India
| | - J. Benito-León
- Department of Neurology, University Hospital "12 de
Octubre", Madrid, Spain
- Department of Medicine, Complutense University, Madrid,
Spain
- Centro de Investigación Biomédica en Red
Sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
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13
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Sridhar P, Anuradha P, Taj CF, Suresh S, Roopesh K, Ghosh R, Bj S, Bandemagal M, Gupta M, Kallur K, KS G, BS A. Efficacy of SBRT in High Volume Metastatic Carcinoma Breast – A Berry Picking Approach in the Era of High Precision Radiotherapy. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.700] [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: 11/27/2022]
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Lohith G, Krithikaa S, Kallur K, Swamy S, Ramaswamy V, Bj S, Pichandi A, Tungappa S, Patil S, Amalraj J, Ghosh R, Dasgupta R, Naik R, Rahul M, Naseer M, Kumar BA. Flagging the Merited Lesions-Fibroblast 1 and 4 Imaging to Map the Key Avid Domains for Spiked Antigenicity Using SBRT In Situ Vaccination and Metronomic Radiation with Anti PDL-1 Therapy for Augmented Abscopal-Radscopal Responses in Disseminated Cancers. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1641] [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: 11/25/2022]
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15
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Ghosh R, Ray A, Roy D, Benito-Leon J. Hoffman's syndrome as the presenting manifestation of non-primary hypothyroidism in a case of Prader-Willi Syndrome. Neurologia 2022; 37:824-827. [PMID: 36468432 DOI: 10.1016/j.nrleng.2022.01.005] [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] [Received: 11/04/2021] [Accepted: 01/01/2022] [Indexed: 11/05/2022] Open
Affiliation(s)
- R Ghosh
- Department of General Medicine, Burdwan, West Bengal, India
| | - A Ray
- R G Kar Medical College & Hospital, Kolkata, West Bengal, India
| | - D Roy
- Department of Biochemistry, All India Institute of Medical Sciences (AIIMS), Jodhpur, Rajasthan, India; Indian Institute of Technology (IIT), Madras, Tamil Nadu, India
| | - J Benito-Leon
- Department of Neurology, University Hospital "12 de Octubre", Madrid, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain; Department of Medicine, Complutense University, Madrid, Spain.
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16
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Ghosh R, Ray A, Roy D, Das S, Dubey S, Benito-León J. Parkinsonism with akinetic mutism following osmotic demyelination syndrome in a SARS-CoV-2 infected elderly diabetic woman: A case report. Neurologia (Engl Ed) 2022; 37:706-708. [PMID: 36195379 PMCID: PMC9526005 DOI: 10.1016/j.nrleng.2021.09.007] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 09/30/2021] [Indexed: 11/05/2022] Open
Affiliation(s)
- R. Ghosh
- Department of General Medicine, Burdwan Medical College & Hospital, Burdwan, West Bengal, India
| | - A. Ray
- Department of General Medicine, R G Kar Medical College and Hospital, Kolkata, West Bengal, India
| | - D. Roy
- Department of Biochemistry, All India Institute of Medical Sciences (AIIMS), Jodhpur, Rajasthan, India,Indian Institute of Technology (IIT), Madras, Tamil Nadu, India
| | - S. Das
- Department of Neuromedicine, Bangur Institute of Neurosciences, Institute of Postgraduate Medical Education and Research & SSKM Hospital, Kolkata, West Bengal, India
| | - S. Dubey
- Department of Neuromedicine, Bangur Institute of Neurosciences, Institute of Postgraduate Medical Education and Research & SSKM Hospital, Kolkata, West Bengal, India
| | - J. Benito-León
- Department of Neurology, University Hospital “12 de Octubre”, Madrid, Spain,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain,Department of Medicine, Complutense University, Madrid, Spain,Corresponding author
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17
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Ghosh R, Dubey S, Mukherjee A, Benito-León J. Rapidly progressive dementia with generalized myoclonus in an adult: Do not forget subacute sclerosing panencephalitis. Neurologia (Engl Ed) 2022; 37:415-418. [PMID: 35672127 DOI: 10.1016/j.nrleng.2021.09.006] [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] [Received: 09/11/2021] [Accepted: 09/30/2021] [Indexed: 10/18/2022] Open
Affiliation(s)
- R Ghosh
- Department of General Medicine, Burdwan Medical College & Hospital, Burdwan, West Bengal, India
| | - S Dubey
- Department of Neuromedicine, Bangur Institute of Neurosciences, Kolkata, India
| | - A Mukherjee
- Department of General Medicine, Burdwan Medical College & Hospital, Burdwan, West Bengal, India
| | - J Benito-León
- Department of Neurology, University Hospital "12 de Octubre", Madrid, Spain; Department of Neurology, Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain; Department of Medicine, Complutense University, Madrid, Spain.
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18
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Ghosh R, Dubey S, Roy D, Benito-León J. Pure alexia as a presenting manifestation of scrub typhus. Neurologia 2022. [DOI: 10.1016/j.nrl.2022.04.007] [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: 10/18/2022] Open
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19
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Ghosh R, Moreno-García S, Roy D, Dubey S, Benito-León J. Typhoid fever presenting with central and peripheral nervous system involvement. Neurologia 2022. [DOI: 10.1016/j.nrl.2022.03.003] [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: 10/18/2022] Open
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20
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Ghosh R, Dubey S, Mukherjee A, Benito-León J. Rapidly progressive dementia with generalized myoclonus in an adult: Do not forget subacute sclerosing panencephalitis. Neurologia 2022. [DOI: 10.1016/j.nrl.2021.09.010] [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: 10/19/2022] Open
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21
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Ghosh R, Kumar P, Mitra P, Purohit P, Nebhinani N, Sharma P. W144 T helper 17 and interferon gamma positive T helper 17 cells in major depressive disorder. Clin Chim Acta 2022. [DOI: 10.1016/j.cca.2022.04.912] [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: 11/03/2022]
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22
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Ghosh R, Roy D, Das S, Benito-León J. Hemifacial spasm followed by predominantly unilateral upper limb monochorea unmasking type-2 diabetes mellitus. Neurologia (Engl Ed) 2022; 37:239-242. [PMID: 35465916 DOI: 10.1016/j.nrleng.2021.12.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 12/13/2021] [Indexed: 12/11/2022] Open
Affiliation(s)
- R Ghosh
- Department of General Medicine, Burdwan Medical College & Hospital, Burdwan, West Bengal, India
| | - D Roy
- Department of Biochemistry, All India Institute of Medical Sciences (AIIMS), Jodhpur, Rajasthan, India; Indian Institute of Technology (IIT), Madras, Tamil Nadu, India
| | - S Das
- Department of Neuromedicine, Bangur Institute of Neurosciences, Institute of Post Graduate Medical Education and Research & SSKM Hospital, Kolkata, West Bengal, India
| | - J Benito-León
- Department of Neurology, University Hospital "12 de Octubre", Madrid, Spain; Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain; Department of Medicine, Complutense University, Madrid, Spain.
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23
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Affiliation(s)
- R Ghosh
- Department of General Medicine, Burdwan Medical College & Hospital, Burdwan, West Bengal, India
| | - S Dutta
- Department of Radiodiagnostic, Burdwan Medical College & Hospital, Burdwan, West Bengal, India
| | - M Ghosh
- Department of Radiodiagnostic, Burdwan Medical College & Hospital, Burdwan, West Bengal, India
| | - J Benito-León
- Department of Neurology, University Hospital "12 de Octubre", Madrid, Spain
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
- Department of Medicine, Complutense University, Madrid, Spain
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24
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Ghosh R, Ray A, Roy D, Benito-Leon J. Hoffman's syndrome as the presenting manifestation of non-primary hypothyroidism in a case of Prader-Willi Syndrome. Neurologia 2022. [DOI: 10.1016/j.nrl.2022.01.005] [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: 10/19/2022] Open
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25
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Ghosh R, Dutta S, Ghosh M, Benito-León J. 'Wine Glass' sign following COVID-19 vaccination in a previously healthy adult. Neurologia 2022; 37:820-823. [PMID: 36468431 PMCID: PMC9609644 DOI: 10.1016/j.nrleng.2022.01.004] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 01/22/2022] [Indexed: 11/07/2022] Open
Affiliation(s)
- R. Ghosh
- Department of General Medicine, Burdwan Medical College & Hospital, Burdwan, West Bengal, India
| | - S. Dutta
- Department of Radiodiagnostic, Burdwan Medical College & Hospital, Burdwan, West Bengal, India
| | - M. Ghosh
- Department of Radiodiagnostic, Burdwan Medical College & Hospital, Burdwan, West Bengal, India
| | - J. Benito-León
- Department of Neurology, University Hospital “12 de Octubre”, Madrid, Spain,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain,Department of Medicine, Complutense University, Madrid, Spain,Corresponding author
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Ghosh R, Barua P, Sikder O, Saha S, Mojumder S, Sikdar D. Comparison of phenolic content and antioxidant activity of two common fruits of Bangladesh in solvents of varying polarities. Food Res 2021. [DOI: 10.26656/fr.2017.5(6).253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Phenolic content and antioxidant activity of two common fruits of Bangladesh, namely
Phyllunthus emblica and Elaeocarpus floribundus, were measured in water, methanol,
ethanol, acetone and hexane extracts. Several in vitro models including
phosphomolybdenum assay, DPPH free radical scavenging assay, FRAP assay and
reducing power assay were used to assess the antioxidant activity of these extracts in
comparison with reference antioxidants. Between the two fruits, P. emblica showed higher
phenolic content and antioxidant activity in all the solvents used. In the DPPH scavenging
assay, the activity of P. emblica extracts was close to reference antioxidants, ascorbic acid
and BHT. Besides, considering the solvents used, extracts of both fruits had the highest
phenolic and antioxidant activity in polar solvents. The correlation coefficient between
total phenolics and antioxidant activities was found statistically significant. These findings
suggest that P. emblica could be an excellent antioxidant resource for industries like food,
pharmaceutical, and cosmetics.
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Huang SB, Thapa D, Munoz AR, Hussain SS, Yang X, Bedolla RG, Osmulski P, Gaczynska ME, Lai Z, Chiu YC, Wang LJ, Chen Y, Rivas P, Shudde C, Reddick RL, Miyamoto H, Ghosh R, Kumar AP. Androgen deprivation-induced elevated nuclear SIRT1 promotes prostate tumor cell survival by reactivation of AR signaling. Cancer Lett 2021; 505:24-36. [PMID: 33617947 DOI: 10.1016/j.canlet.2021.02.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 12/12/2020] [Revised: 02/03/2021] [Accepted: 02/10/2021] [Indexed: 12/24/2022]
Abstract
The NAD+-dependent deacetylase, Sirtuin 1 (SIRT1) is involved in prostate cancer pathogenesis. However, the actual contribution is unclear as some reports propose a protective role while others suggest it is harmful. We provide evidence for a contextual role for SIRT1 in prostate cancer. Our data show that (i) mice orthotopically implanted with SIRT1-silenced LNCaP cells produced smaller tumors; (ii) SIRT1 suppression mimicked AR inhibitory effects in hormone responsive LNCaP cells; and (iii) caused significant reduction in gene signatures associated with E2F and MYC targets in AR-null PC-3 and E2F and mTORC1 signaling in castrate-resistant ARv7 positive 22Rv1 cells. Our findings further show increased nuclear SIRT1 (nSIRT1) protein under androgen-depleted relative to androgen-replete conditions in prostate cancer cell lines. Silencing SIRT1 resulted in decreased recruitment of AR to PSA enhancer selectively under androgen-deprivation conditions. Prostate cancer outcome data show that patients with higher levels of nSIRT1 progress to advanced disease relative to patients with low nSIRT1 levels. Collectively, we demonstrate that lowering SIRT1 levels potentially provides new avenues to effectively prevent prostate cancer recurrence.
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Affiliation(s)
- Shih-Bo Huang
- Department of Urology, The University of Texas Health, USA
| | - D Thapa
- Department of Urology, The University of Texas Health, USA
| | - A R Munoz
- Department of Urology, The University of Texas Health, USA
| | - S S Hussain
- Department of Urology, The University of Texas Health, USA
| | - X Yang
- Department of Urology, The University of Texas Health, USA
| | - R G Bedolla
- Department of Urology, The University of Texas Health, USA
| | - P Osmulski
- Department ofMolecular Medicine, The University of Texas Health, USA
| | - M E Gaczynska
- Department ofMolecular Medicine, The University of Texas Health, USA
| | - Z Lai
- Department ofMolecular Medicine, The University of Texas Health, USA; Greehey Children's Cancer Research Institute, San Antonio, TX, 78229, USA
| | - Yu-Chiao Chiu
- Greehey Children's Cancer Research Institute, San Antonio, TX, 78229, USA
| | - Li-Ju Wang
- Greehey Children's Cancer Research Institute, San Antonio, TX, 78229, USA
| | - Y Chen
- Department ofEpidemiology and Biostatistics, The University of Texas Health, USA; Mays Cancer Center, San Antonio, TX, 78229, USA; Greehey Children's Cancer Research Institute, San Antonio, TX, 78229, USA
| | - P Rivas
- Department of Urology, The University of Texas Health, USA
| | - C Shudde
- Department of Urology, The University of Texas Health, USA
| | - R L Reddick
- Department ofPathology, The University of Texas Health, USA
| | - H Miyamoto
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - R Ghosh
- Department of Urology, The University of Texas Health, USA; Department ofMolecular Medicine, The University of Texas Health, USA; Mays Cancer Center, San Antonio, TX, 78229, USA
| | - A P Kumar
- Department of Urology, The University of Texas Health, USA; Department ofMolecular Medicine, The University of Texas Health, USA; South Texas Veterans Health Care System, San Antonio, TX, 78229, USA; Mays Cancer Center, San Antonio, TX, 78229, USA.
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Finsterer J, Ghosh R. Does the virus or the doctor promote myasthenic crises in COVID-19 patients with myasthenia? J Clin Anesth 2021; 70:110166. [PMID: 33472763 PMCID: PMC7813492 DOI: 10.1016/j.jclinane.2021.110166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 01/06/2021] [Indexed: 11/30/2022]
Affiliation(s)
- J Finsterer
- Klinik Landstrasse, Messerli Institute, Vienna, Austria.
| | - R Ghosh
- Department of General Medicine, Burdwan Medical College & Hospital, Burdwan, West Bengal, India
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Sarkar S, Mukhopadhyay A, Sen S, Mondal S, Banerjee A, Mandal P, Ghosh R, Megaridis CM, Ganguly R. Leveraging Wettability Engineering to Develop Three-Layer DIY Face Masks From Low-Cost Materials. Trans Indian Natl Acad Eng 2020; 5:393-398. [PMID: 38624384 PMCID: PMC7271140 DOI: 10.1007/s41403-020-00115-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/21/2020] [Accepted: 05/26/2020] [Indexed: 12/05/2022]
Abstract
With the rapid spread of COVID-19 worldwide, the demand for appropriate face masks in the market has also skyrocketed. To ease strain on the supply of masks to the essential healthcare sector, it has become imperative that ordinary people rely more on home-made masks that can be easily put together using commonly available materials, while at the same time performing reasonably at arresting the ingress or egress of airborne droplets. Here, we propose a simple do-it-yourself (DIY) method for preparing a three-layered face mask that deploys two hydrophobic polypropylene nonwoven layers interspaced with a hydrophilic cellulosic cloth. The first hydrophobic layer, facing the user, allows high-momentum droplets (e.g., expelled by a sneeze or cough) to pass through and get absorbed in the next hydrophilic layer, thereby keeping the skin in contact with the mask dry and comfortable. The third (outermost) hydrophobic layer prevents penetration of the liquids from the middle layer to the outside, and also arrests any airborne droplets on its exterior. Simple tests show that our masks perform better in arresting the droplet transmission as compared to surgical masks available in the market.
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Affiliation(s)
- Sourav Sarkar
- Center for Development of Appropriate Social Technologies (CAST), Jadavpur University, Kolkata, India
- Mechanical Engineering Department, Jadavpur University, Kolkata, India
| | - Achintya Mukhopadhyay
- Center for Development of Appropriate Social Technologies (CAST), Jadavpur University, Kolkata, India
- Mechanical Engineering Department, Jadavpur University, Kolkata, India
| | - Swarnendu Sen
- Center for Development of Appropriate Social Technologies (CAST), Jadavpur University, Kolkata, India
- Mechanical Engineering Department, Jadavpur University, Kolkata, India
| | - Safwan Mondal
- Center for Development of Appropriate Social Technologies (CAST), Jadavpur University, Kolkata, India
- Mechanical Engineering Department, Jadavpur University, Kolkata, India
| | - Arnav Banerjee
- Center for Development of Appropriate Social Technologies (CAST), Jadavpur University, Kolkata, India
- Mechanical Engineering Department, Jadavpur University, Kolkata, India
| | - Pranibesh Mandal
- Center for Development of Appropriate Social Technologies (CAST), Jadavpur University, Kolkata, India
- Mechanical Engineering Department, Jadavpur University, Kolkata, India
| | - Ratna Ghosh
- Center for Development of Appropriate Social Technologies (CAST), Jadavpur University, Kolkata, India
- Instrumentation and Electronics Engineering Department, Jadavpur University, Kolkata, India
| | - Constantine M. Megaridis
- Mechanical and Industrial Engineering Department, University of Illinois at Chicago, Chicago, USA
| | - Ranjan Ganguly
- Center for Development of Appropriate Social Technologies (CAST), Jadavpur University, Kolkata, India
- Mechanical and Industrial Engineering Department, University of Illinois at Chicago, Chicago, USA
- Power Engineering Department, Jadavpur University, Kolkata, India
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Das AK, Mithal A, Kumar KMP, Unnikrishnan AG, Kalra S, Thacker H, Sethi B, Ghosh R, Mathew A, Chodankar D, Mohanasundaram S, Menon SK, Trivedi C, Naqvi M, Kanade V, Salvi V, Chatterjee G, Rais N, Wangnoo SK, Chowdhury S, Zargar AH, Joshi S. Rationale, study design and methodology of the LANDMARC trial: a 3-year, pan-India, prospective, longitudinal study to assess management and real-world outcomes of diabetes mellitus. Diabet Med 2020; 37:885-892. [PMID: 31691356 PMCID: PMC7216981 DOI: 10.1111/dme.14171] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/04/2019] [Indexed: 11/30/2022]
Abstract
AIM India contributes towards a large part of the worldwide epidemic of diabetes and its associated complications. However, there are limited longitudinal studies available in India to understand the occurrence of diabetes complications over time. This pan-India longitudinal study was initiated to assess the real-world outcomes of diabetes across the country. METHODS The LANDMARC study is the first prospective, multicentre, longitudinal, observational study investigating a large cohort of people with type 2 diabetes mellitus across India over a period of 3 years. The primary objective of this ongoing study is to determine the proportion of people developing macrovascular diabetes complications over the duration of the study (36 months ± 45 days) distributed over seven visits; the secondary objective is to evaluate microvascular diabetes complications, glycaemic control and time-to-treatment adaptation or intensification. Overall, 6300 participants (aged 25-60 years) diagnosed with type 2 diabetes for at least 2 years will be included from 450 centres across India. Data will be recorded for baseline demographics, comorbidities, glycaemic measurements, use of anti-hyperglycaemic medications and any cardiovascular or other diabetes-related events occurring during the observational study period. CONCLUSIONS The LANDMARC study is expected to reveal the trends in complications associated with diabetes, treatment strategies used by physicians, and correlation among treatment, control and complications of diabetes within the Indian context. The findings of this study will help to identify the disease burden, emergence of early-onset complications and dose titration patterns, and eventually develop person-centred care and facilitate public health agencies to invest appropriate resources in the management of diabetes. (Trial Registration No: CTRI/2017/05/008452).
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Affiliation(s)
- A. K. Das
- Pondicherry Institute of Medical Sciences (PIMS)PuducherryIndia
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- Chowpatti Medical CentreMumbaiIndia
| | - S. K. Wangnoo
- Apollo Hospital Education and Research FoundationNew DelhiIndia
| | | | - A. H. Zargar
- Center for Diabetes & Endocrine CareSrinagarIndia
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Bhattacharyya D, Ghosh R, Gupta P, Gupta A, Roychoudhury S, Nath S. Incidence of imatinib resistance in chronic myeloid leukemia (CML) patients: Experience from resource poor center of eastern India. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz251.033] [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: 11/12/2022] Open
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32
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Ghosh R, Mishra P, Maiti PK, Debnandi A. Prompt diagnosis of Scedosporium apiospermum soft tissue infection: Life-saving in a renal transplant recipient. J Postgrad Med 2019; 63:200-202. [PMID: 28272067 PMCID: PMC5525487 DOI: 10.4103/0022-3859.201415] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Scedosporium apiospermum, an ubiquitous filamentous fungus, a known cause of mycetoma, is emerging as an opportunistic pathogen in immunocompromised individuals. We report a case of painful foot abscess in a renal allograft recipient on immunosuppressive therapy, which was clinically diagnosed as a suppurative bacterial abscess. Pus was aspirated, which showed septate, branching hyphal elements and culture on Sabouraud's dextrose agar yielded S. apiospermum, which was identified based on its macroscopic and microscopic features. There are very few reports of scedosporiasis from India. High index of suspicion for unusual fungal infection helps in prompt etiological diagnosis in a transplant recipient and rapid management prevents further dissemination.
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Affiliation(s)
- R Ghosh
- Department of Microbiology, ESI-Post Graduate Institute of Medical Sciences and Research and ESIC Medical College, Kolkata, West Bengal, India
| | - P Mishra
- Department of Dermatology, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
| | - P K Maiti
- Department of Microbiology, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
| | - A Debnandi
- Department of Microbiology, Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
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33
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Ghosh R, Haque M, Turner P, Cruz-Cano R, Dallal C. Urinary phthalates and metabolic syndrome in U.S adults (NHANES 2005-2014): examining potential differences by sex and race. Ann Epidemiol 2019. [DOI: 10.1016/j.annepidem.2019.06.010] [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: 10/26/2022]
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Singh N, Siddarth M, Ghosh R, Tripathi AK, Banerjee BD. Heptachlor-induced epithelial to mesenchymal transition in HK-2 cells mediated via TGF-β1/Smad signalling. Hum Exp Toxicol 2019; 38:567-577. [DOI: 10.1177/0960327119828136] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This study investigated the effect of heptachlor-induced oxidative stress (OS) on transforming growth factor (TGF)-β1-mediated epithelial to mesenchymal transition (EMT) in human renal proximal tubular epithelial (HK-2) cells. Following treatment of HK-2 cells with an increasing concentration of heptachlor (0.01–10 µM) for 24 h, the intracellular reactive oxygen species and malondialdehyde level increased, whereas the glutathione-s-hydroxylase (GSH) level declined significantly in a dose-dependent manner. Pretreatment with N-acetyl cysteine attenuates the heptachlor-induced OS. In this study, we have shown that heptachlor-induced OS regulates the mRNA expression of TGF-β1-mediated Smad signalling genes accompanied by increased nuclear localization of phosphorylated Smad-2 and phosphorylated Smad-3. Furthermore, the m-RNA and protein level of epithelial marker, that is, E-cadherin decreased while the mesenchymal marker, that is, α-smooth muscle actin increased in heptachlor exposed HK-2 cells. In conclusion, heptachlor-induced OS might be responsible for the activation of TGF-β1/Smad signalling which ultimately leads to renal damage by means of EMT.
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Affiliation(s)
- N Singh
- Department of Biochemistry, University College of Medical Sciences (University of Delhi) and Guru Teg Bahadur Hospital, Dilshad Garden, Delhi, India
| | - M Siddarth
- Multidisciplinary Research Unit, University College of Medical Sciences (University of Delhi) and Guru Teg Bahadur Hospital, Dilshad Garden, Delhi, India
| | - R Ghosh
- Department of Biochemistry, University College of Medical Sciences (University of Delhi) and Guru Teg Bahadur Hospital, Dilshad Garden, Delhi, India
| | - AK Tripathi
- Department of Biochemistry, University College of Medical Sciences (University of Delhi) and Guru Teg Bahadur Hospital, Dilshad Garden, Delhi, India
| | - BD Banerjee
- Department of Biochemistry, University College of Medical Sciences (University of Delhi) and Guru Teg Bahadur Hospital, Dilshad Garden, Delhi, India
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Lawriniang B, Ghosh R, Badwar S, Yerraguntla SS, Jyrwa B, Naik H, Naik YP, Suryanarayana SV. Measurements of 60Ni(p,n)60Cu reaction cross-sections and covariance analysis of the uncertainty. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-6368-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Mitra A, Saikh F, Das J, Ghosh S, Ghosh R. Studies on the interaction of a synthetic nitro-flavone derivative with DNA: A multi-spectroscopic and molecular docking approach. Spectrochim Acta A Mol Biomol Spectrosc 2018; 203:357-369. [PMID: 29885634 DOI: 10.1016/j.saa.2018.05.073] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 05/09/2018] [Accepted: 05/20/2018] [Indexed: 06/08/2023]
Abstract
Interaction of a ligand with DNA is often the basis of drug action of many molecules. Flavones are important in this regard as their structural features confer them the ability to bind to DNA. 2-(4-Nitrophenyl)-4H-chromen-4-one (4NCO) is an important biologically active synthetic flavone derivative. We are therefore interested in studying its interaction with DNA. Absorption spectroscopy studies included standard and reverse titration, effect of ionic strength on titration, determination of stoichiometry of binding and thermal denaturation. Spectrofluorimetry techniques included fluorimetric titration, quenching studies and fluorescence displacement assay. Assessment of relative viscosity and estimation of thermodynamic parameters from CD spectral studies were also undertaken. Furthermore, molecular docking analyses were also done with different short DNA sequences. The fluorescent flavone 4NCO reversibly interacted with DNA through partial intercalation as well as minor-groove binding. The binding constant and the number of binding sites were of the order 104 M-1 and 1 respectively. The binding stoichiometry with DNA was found to be 1:1. The nature of the interaction of 4NCO with DNA was hydrophobic in nature and the process of binding was spontaneous, endothermic and entropy-driven. The flavone also showed a preference for binding to GC rich sequences. The study presents a profile for structural and thermodynamic parameters, for the binding of 4NCO with DNA. DNA is an important target for ligands that are effective against cell proliferative disorders. In this regard, the molecule 4NCO is important since it can exert its biological activity through its DNA binding ability and can be a potential drug candidate.
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Affiliation(s)
- A Mitra
- Department of Biochemistry & Biophysics, University of Kalyani, Kalyani 741235, West Bengal, India
| | - F Saikh
- Department of Chemistry, Organic Section, Jadavpur University, Kolkata 700032, West Bengal, India
| | - J Das
- Department of Chemistry, Organic Section, Jadavpur University, Kolkata 700032, West Bengal, India
| | - S Ghosh
- Department of Chemistry, Organic Section, Jadavpur University, Kolkata 700032, West Bengal, India
| | - R Ghosh
- Department of Biochemistry & Biophysics, University of Kalyani, Kalyani 741235, West Bengal, India.
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38
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Ghosh R, Steiert M, Hardmeyer A, Wang YF, Rosenbusch JP. Overexpression of outer membrane porins in E. coli using pBluescript-derived vectors. Gene Expr 2018; 7:149-61. [PMID: 9840808 PMCID: PMC6151949] [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: 02/09/2023]
Abstract
The genes coding for four major outer membrane porins of Escherichia coli, ompF, ompC, phoE, and lamB, have been cloned into pBluescript-derived vectors and overexpressed to very high level (approximately 80% of the total membrane protein) in widely used host strains lacking one or more porins. For OmpF, OmpC, and PhoE porins it is shown that, contrary to current dogma, the genes can be overexpressed without undue deleterious effects upon cell growth and are stable, even under conditions of continuous expression. In contrast, overexpression of LamB is toxic to cell growth, but can be performed using tightly regulated lac promotor-driven expression. The vectors described allow overexpression, sequencing, and mutagenesis to be performed using a single system, without the necessity of subcloning, thus simplifying genetic manipulation. A particular advantage of these new vectors (with the exception of the vector for LamB) is that they do not require a particular regime for inducing the recombinant protein. To our knowledge, this study is the only comparative study of widely used membrane porin expression systems and the first to show that several porins can be stably expressed individually and maintained on high copy number vectors.
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Affiliation(s)
- R Ghosh
- Department of Microbiology, Biozentrum of the University of Basel, Switzerland.
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Ghosh R, Marom G, Bianchi M, Kashirin V, Sridhar P, D'Souza K, Zietak W, Bluestein D. P6317Simulation of transcatheter aortic valve performance in a beating heart. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- R Ghosh
- Stony Book University, Biomedical Engineering, Stony Brook, NY, United States of America
| | - G Marom
- Tel Aviv University, School of Mechanical Engineering, Tel Aviv, Israel
| | - M Bianchi
- Stony Book University, Biomedical Engineering, Stony Brook, NY, United States of America
| | | | - P Sridhar
- Dassault Systèmes Simulia Corp., Aachen, Germany
| | - K D'Souza
- Dassault Systèmes Simulia Corp., Johnston, RI, United States of America
| | | | - D Bluestein
- Stony Book University, Biomedical Engineering, Stony Brook, NY, United States of America
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40
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Madadkar P, Selvaganapathy PR, Ghosh R. Continuous flow microreactor for protein PEGylation. Biomicrofluidics 2018; 12:044114. [PMID: 30174773 PMCID: PMC6102118 DOI: 10.1063/1.5030984] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 08/07/2018] [Indexed: 05/08/2023]
Abstract
PEGylation is increasingly being utilized to enhance the therapeutic efficacy of biopharmaceuticals. Various chemistries and reaction conditions have been established to synthesize PEGylated proteins and more are being developed. Both the extent of conversion and selectivity of protein PEGylation are highly sensitive to process variables and parameters. Therefore, microfluidic-based high-throughput screening platforms would be highly suitable for optimization of protein PEGylation. As part of this study, a poly-dimethylsiloxane-based continuous flow microreactor system was designed and its performance was compared head-to-head with a batch reactor. The reactants within the microreactor were contacted by passive micromixing based on chaotic advection generated by staggered herringbone grooves embedded in serpentine microchannels. The microreactor system was provided with means for on-chip reaction quenching. Lysozyme was used as the model protein while methoxy-polyethylene glycol-(CH2)5COO-NHS was used as the PEGylation reagent. Full mixing was achieved close to the microreactor inlet, making the device suitable for protein PEGylation. The effect of mixing type, i.e., simple stirring versus chaotic laminar mixing on PEGylation, was investigated. Higher selectivity (as high as 100% selectivity) was obtained with the microreactor while the conversion was marginally lower.
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Affiliation(s)
- P. Madadkar
- Department of Chemical Engineering, McMaster University, 1280 Main St. W, Hamilton, Ontario L8S 4L7, Canada
| | - P. R. Selvaganapathy
- Department of Mechanical Engineering, McMaster University, 1280 Main St. W, Hamilton, Ontario L8S 4L7, Canada
| | - R. Ghosh
- Department of Chemical Engineering, McMaster University, 1280 Main St. W, Hamilton, Ontario L8S 4L7, Canada
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41
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Affiliation(s)
- R. Ghosh
- Indian Statistical Institute , 203 B.T. Road, Calcutta 700 035, West Bengal, India
| | - P.K. Das
- Department of Anthropology, Utkal University , Bhubaneswar 751 004, Orissa, India
| | - P. Bharati
- Indian Statistical Institute , 203 B.T. Road, Calcutta 700 035, West Bengal, India
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42
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Chokrobrty R, Rafique T, Ghosh R, Biswas AK, Sajedeen M, Hassan GS. Prediction of Un-erupted Canine and Premolar Tooth Size in Mixed Dentition among Bangladeshi Population. Mymensingh Med J 2017; 26:812-820. [PMID: 29208869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Accurate prediction of the space available to accommodate the size of the un-erupted canines and premolars plays an important role in mixed dentition in Orthodontics. This Descriptive cross sectional study was carried out in the Department of Orthodontics of Bangabandhu Sheikh Mujib Medical University from July 2014 to June 2015. Dental study models of 140 patients were taken as sample. The sample was consisted of 54 Bangladeshi males and 86 females aged between 12 to 17 years and without any previous orthodontic treatment fully erupted permanent teeth and with no dental anomalies were recruited. The study was done by measuring the mesio-distal dimensions of teeth over the dental cast. A pre-structured data collection form which includes the particulars of the patient and data was filled. All patients were having a serial number to maintain their confidentiality. The study protocol was approved by "Institutional Review Board" of Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh. Un-paired t test were used to examine differences between genders, correlation coefficients and linear regression equations were used to carry out the analysis. Descriptive statistics including means, standard deviations, and minimum-maximum values were calculated. Unpaired sample 't' tests were carried out to compare tooth size between the sexes. Logistic regression for development of new prediction formula on the basis of study sample of our population. Pearson correlation coefficient test for found the correlation between mandibular incisors and mandibular and maxillary canine and premolars in each quadrant. The difference between the present study with that of Moyers and Tanaka and Johnston were statistically significant (p<0.001). The values from Moyers and Tanaka and Johnston methods exceed while comparing to Bangladeshi population. Therefore, Moyers and Tanaka and Johnston method of prediction are not applicable for our population.
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Affiliation(s)
- R Chokrobrty
- Dr Rony Chokrobrty, MS in Orthodontics, Department of Orthodontics, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh
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Tiwary B, Ghosh R, Moktan S, Ranjan V, Dey P, Choudhury D, Dutta S, Deb D, Das A, Chakraborty R. Prospective bacterial quorum sensing inhibitors from Indian medicinal plant extracts. Lett Appl Microbiol 2017; 65:2-10. [DOI: 10.1111/lam.12748] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 04/10/2017] [Accepted: 04/11/2017] [Indexed: 11/27/2022]
Affiliation(s)
- B.K. Tiwary
- Omics Laboratory; Department of Biotechnology; University of North Bengal; Siliguri India
- Department of Microbiology; North Bengal St. Xavier's College; Rajganj Jalpaiguri India
| | - R. Ghosh
- Omics Laboratory; Department of Biotechnology; University of North Bengal; Siliguri India
| | - S. Moktan
- Department of Botany; University of Calcutta; Ballygunge India
| | - V.K. Ranjan
- Omics Laboratory; Department of Biotechnology; University of North Bengal; Siliguri India
| | - P. Dey
- Cellular Immunology Laboratory; Department of Zoology; University of North Bengal; Siliguri India
| | - D. Choudhury
- Taxonomy & Environmental Biology Laboratory; Department of Botany; University of North Bengal; Siliguri India
| | - S. Dutta
- Cellular Immunology Laboratory; Department of Zoology; University of North Bengal; Siliguri India
| | - D. Deb
- Omics Laboratory; Department of Biotechnology; University of North Bengal; Siliguri India
| | - A.P. Das
- Taxonomy & Environmental Biology Laboratory; Department of Botany; University of North Bengal; Siliguri India
| | - R. Chakraborty
- Omics Laboratory; Department of Biotechnology; University of North Bengal; Siliguri India
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Abstract
A novel graphene oxide cotton fibre (GOF) was used to adsorb flavonoids from crude ethanol extracts derived from apple peels. Ultra-high pressure liquid chromatography-mass spectrometry was used to analyse polyphenol content, and the resulting data demonstrated that GOF-based flash chromatography can be used to efficiently separate polyphenols from sugars and can facilitate the removal of 95% of the sugar content. Flavonoids can be easily separated from phenolic acids. Chalcones and flavonols were eluted with 100% methanol and subsequently flavan-3-ols can be eluted with 0.04 M sodium hydroxide. The novel GOF has the potential to be used in the isolation of flavonoids.
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Affiliation(s)
- Z Xu
- a Department of Chemistry , School of Science, Xihua University , Chengdu , P.R. China.,d Faculty of Agriculture, Department of Plant, Food, and Environmental Sciences , Dalhousie University , Truro , NS , Canada
| | - R Peng
- b Beijing Laboratory of Biomedical Materials , Beijing University of Chemical Technology , Beijing , P.R. China.,c Department of Chemical Engineering , McMaster University , Hamilton , ON , Canada
| | - X Chen
- b Beijing Laboratory of Biomedical Materials , Beijing University of Chemical Technology , Beijing , P.R. China
| | - R Ghosh
- c Department of Chemical Engineering , McMaster University , Hamilton , ON , Canada
| | - H P V Rupasinghe
- d Faculty of Agriculture, Department of Plant, Food, and Environmental Sciences , Dalhousie University , Truro , NS , Canada
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Neveu P, Maynard MA, Bouchez R, Lugani J, Ghosh R, Bretenaker F, Goldfarb F, Brion E. Coherent Population Oscillation-Based Light Storage. Phys Rev Lett 2017; 118:073605. [PMID: 28256885 DOI: 10.1103/physrevlett.118.073605] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Indexed: 06/06/2023]
Abstract
We theoretically study the propagation and storage of a classical field in a Λ-type atomic medium using coherent population oscillations (CPOs). We show that the propagation eigenmodes strongly relate to the different CPO modes of the system. Light storage in such modes is discussed by introducing a "populariton" quantity, a mixture of populations and field, by analogy to the dark state polariton used in the context of electromagnetically induced transparency light storage protocol. As experimentally shown, this memory relies on populations and is then-by contrast with usual Raman coherence optical storage protocols-robust to dephasing effects.
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Affiliation(s)
- P Neveu
- Laboratoire Aimé Cotton, Université Paris-Sud, ENS Paris-Saclay, CNRS, Université Paris-Saclay, 91405 Orsay, France
| | - M-A Maynard
- Laboratoire Aimé Cotton, Université Paris-Sud, ENS Paris-Saclay, CNRS, Université Paris-Saclay, 91405 Orsay, France
| | - R Bouchez
- Laboratoire Aimé Cotton, Université Paris-Sud, ENS Paris-Saclay, CNRS, Université Paris-Saclay, 91405 Orsay, France
| | - J Lugani
- Laboratoire Aimé Cotton, Université Paris-Sud, ENS Paris-Saclay, CNRS, Université Paris-Saclay, 91405 Orsay, France
| | - R Ghosh
- Shiv Nadar University, Gautam Budh Nagar, Uttar Pradesh 201314, India
| | - F Bretenaker
- Laboratoire Aimé Cotton, Université Paris-Sud, ENS Paris-Saclay, CNRS, Université Paris-Saclay, 91405 Orsay, France
| | - F Goldfarb
- Laboratoire Aimé Cotton, Université Paris-Sud, ENS Paris-Saclay, CNRS, Université Paris-Saclay, 91405 Orsay, France
| | - E Brion
- Laboratoire Aimé Cotton, Université Paris-Sud, ENS Paris-Saclay, CNRS, Université Paris-Saclay, 91405 Orsay, France
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Banerjee P, Chakraborty A, Ghosh R, Goswami B. Predicting the dental implant stability based on the antiresonance phase of a piezo-based impedance sensor. J Int Clin Dent Res Organ 2017. [DOI: 10.4103/2231-0754.201734] [Citation(s) in RCA: 3] [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: 11/04/2022] Open
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Lugani J, Banerjee C, Maynard MA, Neveu P, Xie W, Ghosh R, Bretenaker F, Goldfarb F. Phase-sensitive amplification via coherent population oscillations in metastable helium at room temperature. Opt Lett 2016; 41:4731-4734. [PMID: 28005879 DOI: 10.1364/ol.41.004731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this Letter, we report our experimental results on phase-sensitive amplification (PSA) in a nondegenerate signal-idler configuration using ultranarrow coherent population oscillations in metastable helium at room temperature. We achieved a high PSA gain of nearly 7 with a bandwidth of 200 kHz by using the system at resonance in a single-pass scheme. Further, the measured minimum gain is close to the ideal value, showing that we have a nearly pure PSA. This is also confirmed from our phase-to-phase transfer curves measurements, illustrating that we have a nearly perfect squeezer, which is interesting for a variety of applications.
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Affiliation(s)
- Ratna Ghosh
- Department of Administration and Policy Studies in Education,
Faculty of Education, McGill University, 3724 McTavish, Montreal, Quebec,
H3A 1Y2, Canada
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Abstract
Using children from Canadian Caucasian and Asian Indian populations, the hypothesis was assessed that Asian children would attribute both success and failure in achievement tasks, to stable factors of ability and effort. By contrast, the prediction was that Caucasian children would asume personal responsibility only for success but would attribute failure to unstable factors of luck, task difficulty, and inaccuracy of the evaluator. The rationale employed was that socialization training in certain cultures provides impetus for assuming personal responsibility for both negative and positive outcomes. Ss were given two performance tasks with success and failure outcomes, under conditions of high and low ego involvement. As hypothesized, Caucasian Ss took greater personal credit for success and attributed failure to luck, but Asian Ss assumed more personal responsibility for failure and attributed success to luck. The implications of the attributional patterns were discussed in terms of the socialization of Asian children competing for success and self-enhancement with their Caucasian counterparts.
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Abstract
This article reports on the development of a cross-culturally validated standardized measure of family involvement. Family involvement is operationalized on the basis of the motivational formulation of involvement and alienation (Kanungo, 1979) and studied in a bi-national setting. Data from heterogeneous samples of 269 Indian and 168 Canadian employees reveal that the eight-item family involvement scale has satisfactory psychometric properties. The scale passes the tests of internal consistency, unidimensionality, and construct validity in samples from both the countries. The usefulness of the scale for research and professional work is discussed.
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