1
|
Majumder S, Bhattacharya S, Debnath P, Ganguly B, Chanda M. Identification and classification of arrhythmic heartbeats from electrocardiogram signals using feature induced optimal extreme gradient boosting algorithm. Comput Methods Biomech Biomed Engin 2023:1-14. [PMID: 37807947 DOI: 10.1080/10255842.2023.2265009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Arrhythmic heartbeat classification has gained a lot of attention to accelerate the detection of cardiovascular diseases and mitigating the potential cause of one-third of deaths worldwide. In this article, a computer-aided diagnostic (CAD) approach has been proposed for the automated identification and classification of arrhythmic heartbeats from electrocardiogram (ECG) signals using multiple features aided supervised learning model. For proper diagnosis of arrhythmic heartbeats, MIT-BIH Arrhythmia database has been used to train and test the proposed approach. The ECG signals, extracted from sensor leads, have undergone pre-processing via discrete wavelet transform. Three sets of features, i.e. statistical, temporal, and spectral, are extracted from the processed ECG signals followed by random forest aided recursive feature elimination strategy to select the prominent features for proper classification of arrhythmic heartbeats by the proposed optimal extreme gradient boosting (O-XGBoost) classifier. Hyperparameters such as learning rate, tree-specific parameters, and regularization parameters have been optimized to improve the performance of the XGBoost classifier. Moreover, the synthetic minority over-sampling technique has been employed for balancing the dataset in order to improve the classification performance. Quantitative results reveal the remarkable performance over state-of-the-art methods. The proposed model can be implemented in any computer-aided diagnostic system with similar topological structures.
Collapse
Affiliation(s)
- S Majumder
- Electronics and Communication Engineering Department, Meghnad Saha Institute of Technology, Kolkata, India
| | - S Bhattacharya
- Electronics and Communication Engineering Department, Meghnad Saha Institute of Technology, Kolkata, India
| | - P Debnath
- Department of Basic Sciences & Humanities, Techno International New Town, Kolkata, India
| | - B Ganguly
- Department of Electrical Engineering, Meghnad Saha Institute of Technology, Kolkata, India
| | - M Chanda
- Electronics and Communication Engineering Department, Meghnad Saha Institute of Technology, Kolkata, India
| |
Collapse
|
2
|
Srivastava S, Kumar M, Muhammad T, Debnath P. Prevalence and predictors of vision impairment among older adults in India: evidence from LASI, 2017-18. BMC Ophthalmol 2023; 23:251. [PMID: 37277715 DOI: 10.1186/s12886-023-03009-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 05/31/2023] [Indexed: 06/07/2023] Open
Abstract
BACKGROUND Older adults experience a natural decline in health, physical and cognitive functionality, and vision impairment (VI) is one among them and has become an increasing health concern worldwide. The present study assessed the association of chronic morbidities such as diabetes, hypertension, stroke, heart diseases and various socioeconomic factors with VI among older Indian adults. METHODS Data for this study were derived from the nationally-representative Longitudinal Ageing Study in India (LASI), wave-1 (2017-18). VI was assessed using the cut-off of visual acuity worse than 20/80, and additional analysis was carried out using the definition of VI with a cut-off of visual acuity worse than 20/63. Descriptive statistics along with cross-tabulation were presented in the study. Proportion test was used to evaluate the significance level for sex differentials in VI among older adults. Additionally, multivariable logistic regression analysis was conducted to explore the factors associated with VI among older adults. RESULTS About 33.8% of males and 40% of females suffered from VI in India (visual acuity worse than 20/80). Meghalaya (59.5%) had the highest prevalence for VI among older males followed by Arunachal Pradesh (58.4%) and Tripura (45.2%). Additionally, Arunachal Pradesh (77.4%) had the highest prevalence for VI among females followed by Meghalaya (68.8%) and Delhi (56.1%). Among the health factors, stroke [AOR: 1.20; CI: 1.03-1.53] and hypertension [AOR: 1.12; CI: 1.01-1.22] were the significant risk factors for VI among older adults. Additionally, being oldest old [AOR: 1.58; CI: 1.32-1.89] and divorced/separated/deserted/others [AOR: 1.42; CI: 1.08-1.87] were significantly associated with VI. Moreover, older adults with higher educational status [AOR: 0.42; CI: 0.34, 0.52], currently working [AOR: 0.77; CI: 0.67, 0.88], from urban areas [AOR: 0.86; CI: 0.76-0.98] and from western region [AOR: 0.55; CI: 0.48-0.64] had lower odds of VI in this study. CONCLUSION This study identified higher rates of VI among those who are diagnosed with hypertension or stroke, currently unmarried, socioeconomically poorer, less educated and urban resident older people that can inform strategies to engage high risk groups. The findings also suggest that specific interventions that promote active aging are required for those who are socioeconomically disadvantaged as well as visually impaired.
Collapse
Affiliation(s)
- Shobhit Srivastava
- International Institute for Population Sciences, Mumbai, Maharashtra, 400088, India
| | - Manish Kumar
- International Institute for Population Sciences, Mumbai, Maharashtra, 400088, India
| | - T Muhammad
- International Institute for Population Sciences, Mumbai, Maharashtra, 400088, India.
| | - Paramita Debnath
- International Institute for Population Sciences, Mumbai, Maharashtra, 400088, India
| |
Collapse
|
3
|
Muhammad T, Srivastava S, Debnath P, Kumar P, Kumar M. Does tandem balance test predict cognitive impairment among older adults? Findings from Longitudinal Ageing Study in India, 2017-18. Aging Clin Exp Res 2023; 35:855-865. [PMID: 36757673 DOI: 10.1007/s40520-023-02359-1] [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: 12/17/2022] [Accepted: 01/23/2023] [Indexed: 02/10/2023]
Abstract
BACKGROUND Ageing entails a decline in physical and functional abilities including a reduced body balance due to complex integration and coordination of sensory acuity, motor control, neural and cognitive functions. This study aimed to examine the association between tandem balance test and cognitive impairment among older Indian adults. The study also examined the gender differentials in the associations with an interaction analysis. METHODS Data for this study were drawn from the recent release of the Longitudinal Ageing Study in India (2017-18). The total sample size for the present study included 26,539 older adults age 60 years and above. Descriptive statistics and bivariate analysis were used to present the preliminary results. Two sample proportion test was used to evaluate the significance for gender differences. Further, multivariable binary logistic regression analysis was used to evaluate the independent association of balance test performance and cognitive impairment among older adults. RESULTS Nearly 16% of male and 26% of female older adults could not finish full tandem test in this study. There were significant gender differences in cognitive impairment among older adults (male-6.5% and female-18.9%). The likelihood of cognitive impairment was significantly higher among older adults who could not finish the full tandem test compared to those who finished the tandem test [AOR: 1.22; CI: 1.09-1.36]. The interaction model revealed that older females who could not finish the full tandem test were 2.11 times significantly more likely to be cognitively impaired in reference to older males who finished the full tandem test [AOR: 2.11; CI: 1.81,2.45]. Similarly, older females who finished the full tandem test were 2.42 times significantly more likely to be cognitively impaired in reference to older males who finished the full tandem test [AOR: 2.42; CI: 2.02,2.88]. CONCLUSION The findings of the study suggest that healthcare professionals working with older adults should consider the results of a balance test to screen for their risk of cognitive impairment. Results from the relationship between failing to finish the tandem test and cognitive impairment may be helpful for identifying older men and women who are at higher risk of experiencing mobility decline and their progression to dementia.
Collapse
Affiliation(s)
- T Muhammad
- Department of Family & Generations, International Institute for Population Sciences, Mumbai, 400088, Maharashtra, India.
| | | | | | | | - Manish Kumar
- Population Research Centre (PRC), Dharwad, India
| |
Collapse
|
4
|
Srivastava S, Kumar P, Paul R, Debnath P. Effect of change in individual and household level characteristics on anemia prevalence among adolescent boys and girls in India. BMC Public Health 2022; 22:1478. [PMID: 35922790 PMCID: PMC9351076 DOI: 10.1186/s12889-022-13863-w] [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: 11/28/2021] [Accepted: 07/25/2022] [Indexed: 11/21/2022] Open
Abstract
Background Anemia is a significant public health challenge that affects the population of all nations. Anemia among adolescents emerged as an alarming public health issue as it harms an individual’s physical capacity and cognitive and work performance. The study aims to determine the effect of changes in individual and household level factors on the prevalence of anemia among adolescent boys and girls. Method The study utilized data from two waves of the “Understanding the lives of adolescent and young adults” (UDAYA) survey, conducted in Bihar and Uttar Pradesh during 2015–16 (wave-1) and 2018–19 (wave-2). The sample size for the present study was 4216 and 5974 unmarried adolescent boys and girls aged 10–19 years in both waves. We performed descriptive analysis to observe the characteristics of adolescents during 2015–16. Further, changes in selected independent variables from wave-1 to wave-2 were examined using the proportion test. Moreover, random-effect regression models were employed to examine the association of changes in individual and household level factors with anemia prevalence among adolescents. Results The prevalence of anemia decreased over time among adolescent boys (33 to 30%), whereas it increased among adolescent girls (59 to 63%). The results from the random-effect model show that adolescent boys who used shared toilets were more anemic than those who used a private restroom [β:0.05, 95% CI:(0.01, 0.08)]. Moreover, underweight [β:0.05, CI:(0.01, 0.09)] and thin [β:0.04, CI:(0.00, 0.07)] adolescent boys were more likely to be anemic compared to their normal counterparts. Additionally, boys who belonged to the poorest [β:0.08, CI:(0.02, 0.14)] households had a higher risk of anemia than the richest household. Conclusion The anemia prevalence was higher among adolescents aged 10–19 years in Uttar Pradesh and Bihar. This study has filled an information gap by providing state-level representative estimates indicating underweight status and thinness as the common factors behind the anemia prevalence among adolescent boys than in girls. Iron deficiency anemia is the most prevalent in certain age groups in India. Hence, Anemia prevention efforts and iron-folic acid (IFA) supplementation programs are currently being strengthened in India, targeting the high-risk population. Supplementary Information The online version contains supplementary material available at 10.1186/s12889-022-13863-w.
Collapse
Affiliation(s)
- Shobhit Srivastava
- Department of Survey Research & Data Analytics, International Institute for Population Sciences, Mumbai, Maharashtra, India
| | - Pradeep Kumar
- Department of Survey Research & Data Analytics, International Institute for Population Sciences, Mumbai, Maharashtra, India
| | - Ronak Paul
- Department of Public Health & Mortality Studies, International Institute for Population Sciences, Mumbai, Maharashtra, 400088, India.
| | - Paramita Debnath
- Department of Fertility Studies, International Institute for Population Sciences, Mumbai, Maharashtra, India
| |
Collapse
|
5
|
Muhammad T, Debnath P, Srivastava S, Sekher TV. Childhood deprivations predict late-life cognitive impairment among older adults in India. Sci Rep 2022; 12:12786. [PMID: 35896620 PMCID: PMC9329336 DOI: 10.1038/s41598-022-16652-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 07/13/2022] [Indexed: 11/21/2022] Open
Abstract
Large population-based studies on the associations of childhood factors with late-life cognition are lacking in many low and middle income countries including India. In this study, we assessed the prevalence of late-life cognitive impairment and examined the associations of childhood socioeconomic status (SES) and health conditions with cognitive impairment among older adults in India. Data for this study were derived from the Longitudinal Ageing Study in India conducted in 2017–18. The effective sample size was 31,464 older adults aged 60 years and above. Cognitive functioning was measured through five global domains (memory, orientation, arithmetic function, executive function, and object naming). The overall score ranged between 0 and 43, and the score was reversed indicating cognitive impairment. Descriptive statistics along with mean scores of cognitive impairment were presented. Additionally, moderated multivariable linear regression models were employed to examine the association between explanatory variables, including childhood SES and health conditions and late-life cognitive impairment. The mean score of cognitive functioning among the study participants was 21.72 (CI 2.64–21.80). About 15% of older adults had poor health conditions, and 44% had lower financial status during their childhood. Older adults who had a fair health during their childhood were more likely to suffer from cognitive impairment in comparison to older adults who had good health during their childhood (Coef: 0.60; CI 0.39, 0.81). In comparison to older adults who had good childhood financial status, those who had poor childhood financial status were more likely to suffer from cognitive impairment (Coef: 0.81; CI 0.56, 1.07). Older adults who had fair childhood health status and poor childhood financial status were more likely to suffer from cognitive impairment in comparison to older adults who had good childhood health and good financial status (Coef: 1.26; CI 0.86, 1.66). Social policies such as improving educational and financial resources in disadvantaged communities and socioeconomically poor children and their families, would help to enhance a better cognitive ageing and a healthy and dignified life in old age.
Collapse
Affiliation(s)
- T Muhammad
- Department of Family & Generations, International Institute for Population Sciences, Mumbai, Maharashtra, 400088, India
| | - Paramita Debnath
- International Institute for Population Sciences, Mumbai, 400088, India
| | - Shobhit Srivastava
- Department of Survey Research & Data Analytics, International Institute for Population Sciences, Mumbai, India.
| | - T V Sekher
- Department of Family & Generations, International Institute for Population Sciences, Mumbai, Maharashtra, 400088, India
| |
Collapse
|
6
|
Srivastava S, Debnath P, Shri N, Muhammad T. The association of widowhood and living alone with depression among older adults in India. Sci Rep 2021; 11:21641. [PMID: 34737402 PMCID: PMC8568934 DOI: 10.1038/s41598-021-01238-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [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: 06/09/2021] [Accepted: 10/26/2021] [Indexed: 11/25/2022] Open
Abstract
Widowhood is a catastrophic event at any stage of life for the surviving partner particularly in old age, with serious repercussions on their physical, economic, and emotional well-being. This study investigates the association of marital status and living arrangement with depression among older adults. Additionally, the study aims to evaluate the effects of factors such as socio-economic conditions and other health problems contributing to the risk of depression among older adults in India. This study utilizes data from the nationally representative Longitudinal Ageing Study in India (LASI-2017-18). The effective sample size was 30,639 older adults aged 60 years and above. Descriptive statistics and bivariate analysis have been performed to determine the prevalence of depression. Further, binary logistic regression analysis was conducted to study the association between marital status and living arrangement on depression among older adults in India. Overall, around nine percent of the older adults suffered from depression. 10.3% of the widowed (currently married: 7.8%) and 13.6% of the older adults who were living alone suffered from depression. Further, 8.4% of the respondents who were co-residing with someone were suffering from depression. Widowed older adults were 34% more likely to be depressed than currently married counterparts [AOR: 1.34, CI 1.2-1.49]. Similarly, respondents who lived alone were 16% more likely to be depressed compared to their counterparts [AOR: 1.16; CI 1.02, 1.40]. Older adults who were widowed and living alone were 56% more likely to suffer from depression [AOR: 1.56; CI 1.28, 1.91] in reference to older adults who were currently married and co-residing. The study shows vulnerability of widowed older adults who are living alone and among those who had lack of socio-economic resources and face poor health status. The study can be used to target outreach programs and service delivery for the older adults who are living alone or widowed and suffering from depression.
Collapse
Affiliation(s)
- Shobhit Srivastava
- grid.419349.20000 0001 0613 2600International Institute for Population Sciences, Mumbai, Maharashtra 400088 India
| | - Paramita Debnath
- grid.419349.20000 0001 0613 2600International Institute for Population Sciences, Mumbai, Maharashtra 400088 India
| | - Neha Shri
- grid.419349.20000 0001 0613 2600International Institute for Population Sciences, Mumbai, Maharashtra 400088 India
| | - T. Muhammad
- grid.419349.20000 0001 0613 2600International Institute for Population Sciences, Mumbai, Maharashtra 400088 India
| |
Collapse
|
7
|
Chaurasia H, Srivastava S, Debnath P. Does Socio-Economic Inequality Exist in Low Subjective Well-Being Among Older Adults in India? A Decomposition Analysis Approach. Ageing Int 2021. [DOI: 10.1007/s12126-021-09453-7] [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]
|
8
|
Barman TK, Roy S, Nasreen SA, Ahmed S, Khanam J, Nila SS, Debnath P, Khaled FI, Paul SK. Clinical Features of Covid-19 Infection: a Study of SARS-CoV-2 Positive Patients from Mymensingh Region, in Bangladesh. Mymensingh Med J 2021; 30:666-670. [PMID: 34226453] [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: 06/13/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has spread to almost every country on the globe and it is considered by World Health Organization as a pandemic. SARS-CoV-2 causes the Coronavirus disease 2019 (COVID-19). Many of country are reporting the symptomatic characteristics of their cases to give better observations into the various clinical presentations of SARS-CoV-2 infection. However, the symptomatic literature is limited in Bangladesh. The aim of the study is to analyze the symptomatic characteristics of patients having the SARS-CoV-2 positive by real time reverse transcription polymerase chain reaction (rRT -PCR) test. Here, the data of 146 patients who were positive for the SARS-CoV-2 virus and were residents of different districts of Mymensingh region were analyzed. Patients' demographics, symptoms, history of co-morbidities condition like DM, HTN, Hypothyroid etc, travel and contact were collected from MMC Daily Reported data from April 1, 2020 to April 30, 2020. Among the total 3184 patients' nasopharyngeal samples, we have got 146 (4.58%) positive for SARS-CoV-2. Of the 146 positive patients most of the patients were male 95(65%), the majority 80(54.8%) were the 21 to 40year age group. Most of the patients 61(41.78%) were residents of Mymensingh include Mymensingh Sadar, Valuka, Trishal and Ishhorganj. Among the patients 94(64.4%) were symptomatic and 52(35.6%) were asymptomatic. The symptomatic patients presented mostly were with fever 45(30.82%), cough 33(22.6%) and breathlessness 9(6.16%). The majority of patients 54(36.9%) had a history of contact with SARS-CoV-2 patients and 16(11%) had a travel history within 14 days of their rRT-PCR test positive. The only 3(2%) patients had history of comorbidities condition like DM, HTN, Hypothyroid etc. The number of SARS-CoV-2 cases is rapidly increasing in our country. The education of the population about the most common symptoms of the virus infection is needed mostly; therefore, individuals may able to recognize these symptoms. So, that people might get themselves tested.
Collapse
Affiliation(s)
- T K Barman
- Dr Tridip Kanti Barman, Assistant Professor, Department of Medicine, Mymensingh Medical College (MMC), Mymensingh, Bangladesh
| | | | | | | | | | | | | | | | | |
Collapse
|
9
|
Ali B, Debnath P, Anwar T. Inequalities in utilisation of maternal health services in urban India: Evidences from national family health survey-4. Clinical Epidemiology and Global Health 2021. [DOI: 10.1016/j.cegh.2020.11.005] [Citation(s) in RCA: 1] [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: 10/22/2022] Open
|
10
|
Abedin S, Paul SK, Nasreen SA, Nessa A, Ahmed S, Haque N, Ahamed F, Islam A, Ifa IA, Debnath P, Ahmed MU, Nahar S. Molecular Detection of Human Coronavirus from North Central Part of Bangladesh Depending on ORF1ab and N Gene. Mymensingh Med J 2020; 29:865-870. [PMID: 33116089] [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: 06/11/2023]
Abstract
The Coronavirus disease 2019 (COVID-19) resulted severe respiratory illness such as pneumonia and lung dysfunctions that was first identified at Wuhan, the capital of Hubeiin China during the end of December 2019. The etiological cause of COVID-19 has been confirmed as a novel coronavirus known as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) which was similar with the zoonotic virus SARS-CoV (2002). Now a days for early diagnosis of COVID-19 the nucleic acid based test like RT PCR (real time reverse transcription polymerase chain reaction) is most consistent and used all over the world. In this study among 11,280 cases 825(7.31%) were positive by molecular RT PCR method on June 2020 at Microbiology department of Mymensingh Medical College and the samples are collected from different areas of Northern part of Bangladesh. Among this positive cases 588(71%) N gene, 10 ORF1ab (2%) and 227(27%) both N and ORF gene showed significant curve which is specific for COVID-19 positive patients. Because N and ORF gene of this virus inhibit immune system of human body especially interferon. Out of SARS-CoV-2 positive cases maximum number of N gene were found in male patients and above 40 years old aged group. So, Molecular diagnosis of this pandemic virus especially by N and ORF gene might be helpful to reduce the spread of SARS-CoV-2 as well as early treatment for saving many lives.
Collapse
Affiliation(s)
- S Abedin
- Dr Sahida Abedin, Lecturer, Department of Virology, MMC, Mymensingh, Bangladesh; E-mail:
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
11
|
Dutta M, Bhise M, Prashad L, Chaurasia H, Debnath P. Prevalence and risk factors of anemia among children 6–59 months in India: A multilevel analysis. Clinical Epidemiology and Global Health 2020. [DOI: 10.1016/j.cegh.2020.02.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
|
12
|
Nayak PS, Harugop AKS, Debnath P, Patil PH. Eagle Syndrome- An Entity Often Misdiagnosed. BJOHNS 2020. [DOI: 10.47210/bjohns.2020.v28i2.333] [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: 11/03/2022] Open
Abstract
Introduction
Throat pain is one of the most common complaints that an otolaryngologist encounters in daily practice, there can be numerous aetiologies to it. Eagle Syndrome is one such entity which is characterized by chronic throat pain due to elongation of the styloid process or mineralization of the stylohyoid ligament. The vague symptomatology of this condition often leads to delayed diagnosis and treatment.
Case Reports
We report 5 cases of Eagle Syndrome. All the patients presented to us with complaints of chronic throat radiating to neck which did not relieve on taking medications, for the same they have been consulting multiple specialities. The diagnosis of Eagle Syndrome was confirmed by palpation in tonsillar fossa and orthopantomogram revealed enlarged styloid process measuring more than 30mm. Upon confirmation, all the 5 patients underwent tonsillo-styloidectomy and on consequent follow ups, they were symptomatically improved.
Discussion
Eagle Syndrome is a diagnosis of exclusion and should raise high index of suspicion in patients with nonspecific throat and neck pain not responding to any conservative treatment. With an increasing incidence of side effects following injudicious treatment given in such cases, this condition requires attention, as it a rare entity and often misdiagnosed.
Collapse
|
13
|
Haque N, Bari MS, Ahmed S, Paul SK, Nasreen SA, Ahamed F, Islam A, Roy S, Abedin S, Khan MK, Fariha RH, Debnath P. Detection of 2019-Novel Coronavirus (2019-nCoV) by rRT-PCR at Mymensingh Medical College, Mymensingh, Bangladesh. Mymensingh Med J 2020; 29:589-595. [PMID: 32844798] [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: 06/11/2023]
Abstract
The coronavirus disease (COVID-19) is highly pathogenic viral infection caused by SARS-CoV-2. Currently, COVID-19 has caused global health concern. WHO has declared COVID-19 as a pandemic disease on March 11, 2020 and characterized by fever, dry cough, fatigue, myalgia and chest pain with pneumonia in severe cases. The virus has spread to at least 213 countries and more than 9093827 confirmed cases and 471490 deaths have been recorded. In the beginning, the world public health authorities tried to eradicate the disease in China through quarantine but are now transitioning to prevention strategies worldwide to delay its spread. There are some newly developed and promising methods for detection of SARS-CoV-2, in order to facilitate the development of novel approaches for early diagnosis. Nucleic acid based tests currently offer the most sensitive and early detection and confirmation for SARS-CoV-2 infection. Among them Real-time reverse transcription polymerase chain reaction (rRT-PCR) is the most popular and the "gold standard" testing method for the detection of SARS-CoV-2. The present study was carried out to detect 2019-Novel Coronavirus (2019-nCoV) by rRT-PCR method at Mymensingh Medical College, Mymensingh, Bangladesh from 1st April, 2020 to 31st May, 2020. A total of 14356 samples were tested from four districts of Mymensingh division namely, Mymensingh, Jamalpur, Sherpur, Netrokona and some parts of Sunamganj for rRT-PCR. Among them 1086 (7.5%) patients were positive for SARS-CoV-2. Out of 1086 positive cases 716(65.9%) were male and 370(34.1%) were female with a Mean±SD age 34.1±12 years. Maximum positivity was found in Mymensingh district followed by Netrokona, Jamalpur, Sherpur and Sunamganj respectively. This is the first base line study for genetic detection of 2019-nCoV in Mymensingh division which may reflect the total scenario of Bangladesh situation. We hope this paper will help the researcher to increase the availability, accuracy, and speed of widespread COVID-19 testing throughout the world in this crisis moment.
Collapse
Affiliation(s)
- N Haque
- Dr Nazia Haque, Assistant Professor, Department of Microbiology, Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Roy S, Paul SK, Barman TK, Ahmed S, Haque N, Mazid R, Debnath P, Roy SA. SARS-CoV-2 Detection using Real Time PCR by a Commercial Diagnostic Kit. Mymensingh Med J 2020; 29:596-600. [PMID: 32844799] [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: 06/11/2023]
Abstract
There is a new public health problem around the world with the emergence and spread of 2019 novel corona virus (2019-nCoV). The disease "coronavirus disease 2019" (COVID-19) was caused by SARS-CoV-2. As virus isolates are unavailable so the public laboratories are now facing a challenge for detecting the virus because there is growing evidence of the outbreak which is more widespread than initially thought. We aimed here to discuss about the current diagnostic methodology for detecting the SARS-CoV-2 in health laboratories. Here we use the Novel Corona virus (2019-nCoV) Nucleic Acid Diagnostic Kit (PCR-Fluorescence Probing) which is a real time reverse transcription polymerase chain reaction (rRT-PCR) test. A total of 230 samples in the department of microbiology, Mymensingh Medical College from 1st, April 2020 were selected for this study. Among them 20(8.69%) were positive for SARS CoV-2 and remaining were negative. Among the positive samples 55% could amplify both the ORF 1ab and N genes. The single gene ORF 1ab or N was positive in 15% and 30% cases respectively. The Ct values (<38) of ORF 1ab gene indicated by FAM dye was 92.8% and N gene curve indicated by ROX dye was 100%. The presence of IC gene curve with Ct values (<38) indicated by CY5 dye among the positives were 70% and 100% in negatives. The Ct values (38-40) of IC (CY5) among the positives were 15%. The present study demonstrates the enormous response capacity of the study kit for detecting SARS-CoV-2 within the laboratories in Bangladesh.
Collapse
Affiliation(s)
- S Roy
- Dr Sangjukta Roy, Lecturer, Department of Microbiology, Mymensingh Medical College (MMC), Mymensingh, Bangladesh; E-mail:
| | | | | | | | | | | | | | | |
Collapse
|
15
|
Dey AK, Debnath P. Empirical approach for bearing capacity prediction of geogrid-reinforced sand over vertically encased stone columns floating in soft clay using support vector regression. Neural Comput Appl 2020. [DOI: 10.1007/s00521-019-04092-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
16
|
Tejaswini JS, Belaldavar B, Debnath P. Lamina Papyracea Breach: Brunt of Amateur Kabaddi. J Sci Soc 2018. [DOI: 10.4103/jss.jss_6_19] [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: 11/04/2022] Open
|
17
|
Abstract
A study was conducted in 22 alluvial soils of West Bengal, India to estimate the critical limit of Zn in soil and rice plant for predicting the response of rice (Oryza sativa) to zinc application. The DTPA-extractable Zn was positively and significantly correlated with CEC, organic carbon and clay contents and negatively correlated with pH, silt and sand contents of soil. The DTPA-extractable Zn also showed a positive correlation with dry matter yield and plant Zn content. The critical concentration of Zn in these soils was established at 0.75 mg kg-1 for rice and that of 28.0 mg kg-1 in the plant tissue. Soil containing Zn below the critical limit responded appreciably to Zn fertilization. A negative response to Zn application was also observed at its higher level. The average dry matter yield increases with increasing level of Zn application up to 2.5 mg kg-1 in Zn deficient soils. The average response to Zn application in rice in Zn deficient soils was found to be 68.5% and 19.9% in Zn adequate soils. DOI: http://dx.doi.org/10.3329/sja.v10i2.18334 SAARC J. Agri., 10(2): 137-146 (2012)
Collapse
|
18
|
Bharali P, Singh SP, Dutta N, Gogoi S, Bora LC, Debnath P, Konwar BK. Biodiesel derived waste glycerol as an economic substrate for biosurfactant production using indigenous Pseudomonas aeruginosa. RSC Adv 2014. [DOI: 10.1039/c4ra05594b] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Biodiesel plant waste glycerol as low-cost substrate for biosurfactant production.
Collapse
Affiliation(s)
- Pranjal Bharali
- Department of Molecular Biology and Biotechnology
- Tezpur (Central) University
- Tezpur 784028, India
| | - Salam Pradeep Singh
- Department of Molecular Biology and Biotechnology
- Tezpur (Central) University
- Tezpur 784028, India
| | - Nippu Dutta
- Department of Chemical Sciences
- Tezpur (Central) University
- Tezpur 784028, India
| | - Shyamalima Gogoi
- Department of Molecular Biology and Biotechnology
- Tezpur (Central) University
- Tezpur 784028, India
| | - L. C. Bora
- Department of Plant Pathology
- Assam Agricultural University
- Jorhat-785013, India
| | - P. Debnath
- Department of Plant Pathology
- Assam Agricultural University
- Jorhat-785013, India
| | - Bolin Kumar Konwar
- Department of Molecular Biology and Biotechnology
- Tezpur (Central) University
- Tezpur 784028, India
| |
Collapse
|
19
|
Deb P, Debnath P, Pattanaaik S. Physico-chemical properties and water holding capacity of cultivated soils along altitudinal gradient in South Sikkim, India. ACTA ACUST UNITED AC 2014. [DOI: 10.5958/j.0976-058x.48.2.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
20
|
Jhaveri KA, Debnath P, Chernoff J, Sanders J, Schwartz MA. The role of p21-activated kinase in the initiation of atherosclerosis. BMC Cardiovasc Disord 2012; 12:55. [PMID: 22824149 PMCID: PMC3489605 DOI: 10.1186/1471-2261-12-55] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [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] [Received: 03/09/2012] [Accepted: 07/23/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND p21-activated kinase (PAK) has been implicated in the inflammatory activation of endothelial cells by disturbed fluid shear stress, which is the initiating stimulus in atherosclerosis. The study addresses whether PAK1 contributes to inflammatory marker expression in endothelial cells at atherosclerosis-susceptible regions of arteries in vivo. METHOD Aortas from WT and PAK1-/- C57BL/6J mice on a normal chow diet were fixed, dissected and processed for immunohistochemistry using a panel of inflammatory markers. We visualized and quantified staining in the endothelium at the greater and lesser curvatures of the arch of aorta, as atherosclerosis-resistant and susceptible regions, respectively. RESULTS Fibronectin, VCAM-1 and the activated RelA NF-κB subunit were localized to the lesser curvature and decreased in PAK1-/- mice. The activated RelB NF-κB subunit was also localized to the lesser curvature but was increased in PAK1-/- mice. Low levels of staining for ICAM-1 and the monocyte/macrophage marker Mac2 indicated that overall inflammation in this tissue was minimal. CONCLUSION These data show that PAK1 has a significant pro-inflammatory function at atherosclerosis-prone sites in vivo. These effects are seen in young mice with very low levels of inflammation, suggesting that inflammatory activation of the endothelium is primarily biomechanical. Activation involves NF-κB, expression of leukocyte recruitment receptors and fibronectin deposition. These results support and extend in vitro studies demonstrating that PAK contributes to activation of inflammatory pathways in endothelial cells by fluid shear stress.
Collapse
Affiliation(s)
- K A Jhaveri
- Department of Microbiology, University of Virginia, Cardiovascular Research Center, Charlottesville, VA, USA
| | | | | | | | | |
Collapse
|
21
|
Majumdar KC, Roy B, Debnath P, Taher A. Metal-mediated Heterocyclization: Synthesis of Heterocyclic Compounds Containing More Than One Heteroatom Through Carbon-Heteroatom Bond Forming Reactions. CURR ORG CHEM 2010. [DOI: 10.2174/138527210791111876] [Citation(s) in RCA: 16] [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: 11/22/2022]
|
22
|
Majumdar KC, Debnath P, Alam S, Islam R. Regioselective synthesis of indole-annulated sulfur heterocycles by tri-n-butyltin hydride-mediated aryl radical cyclization. J Sulphur Chem 2008. [DOI: 10.1080/17415990802105788] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- K. C. Majumdar
- a Department of Chemistry , University of Kalyani , Kolkata, West Bengal, India
| | - P. Debnath
- a Department of Chemistry , University of Kalyani , Kolkata, West Bengal, India
| | - S. Alam
- a Department of Chemistry , University of Kalyani , Kolkata, West Bengal, India
| | - R. Islam
- a Department of Chemistry , University of Kalyani , Kolkata, West Bengal, India
| |
Collapse
|
23
|
Majumdar KC, Ray K, Debnath P, Maji P, Kundu N. Thiophenol-mediated intramolecular radical cyclization: an efficient method for the synthesis of benzoxocine derivatives. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.07.030] [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: 10/21/2022]
|
24
|
Majumdar KC, Debnath P, Chottopadhyay SK. Aryl Radical Cyclization: Regioselective Synthesis of 6a,7,8,12b‐Tetrahydro‐6H‐chromeno[3,4‐c]quinolin‐6‐one. SYNTHETIC COMMUN 2008. [DOI: 10.1080/00397910801982191] [Citation(s) in RCA: 6] [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: 10/22/2022]
|
25
|
Chatterjee P, Banerjee AK, Das P, Debnath P, Chatterjee P. Validity of 20 meter multi stage shuttle run test for prediction of maximum oxygen uptake in Indian female university students. Kathmandu Univ Med J (KUMJ) 2008; 6:176-180. [PMID: 18769082] [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: 05/26/2023]
Abstract
BACKGROUND The 20-meter multi stage shuttle run test (20-m MST) has not yet been used by Indian scientists and validity of the test has not been studied for use with any of the Indian population. AIMS The purpose of this study was to validate the applicability of the 20-m MST in Indian adult female. MATERIALS AND METHODS For application of direct method cross over design was followed. For validity of the results repeatability was used. METHODS AND MATERIAL 32 female university students (age range 20.4 approximately 24.8 years) from three different universities of West Bengal, India were recruited for the study. Direct estimation of VO2 max comprised treadmill exercise followed by expired gas analysis by scholander micro-gas analyzer whereas VO2 max was indirectly predicted by the 20-m MST. STATISTICAL ANALYSIS Paired t-test, Pearson's product moment correlation, linear regression statistics and Bland and Altman approach for limit of agreement were adopted for statistical analysis of the data. RESULTS The difference between the mean (SD) VO2 max values of direct measurement (VO2 max = 32.84 +/- 2.92 ml/kg/min) and the 20-m MST (SPVO2 max = 32.60 +/- 3.40 ml/kg/min) was statistically insignificant (p>0.10). Limits of agreement analysis also suggest that the 20-m MST can be applied for use with the studied population. CONCLUSIONS The results suggest that the application of the present form of the 20-m MST be justified in the studied population. For better prediction of VO2 max a new equation has been computed based on present data for use with Indian female university students.
Collapse
Affiliation(s)
- P Chatterjee
- Department of Physical Education, University of Kalyani, West Bengal, India.
| | | | | | | | | |
Collapse
|
26
|
Majumdar K, Maji P, Ray K, Debnath P. Thiol mediated 8-endo-trig radical cyclization: an easy access to medium-sized cyclic ethers. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.10.147] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
27
|
Majumdar KC, Saha D, Debnath P. Studies on Sequential Claisen Rearrangement: Charge‐Accelerated [3,3]‐Sigmatropic Rearrangement Leading to Polyheterocycles. SYNTHETIC COMMUN 2007. [DOI: 10.1080/00397910701557812] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- K. C. Majumdar
- a Department of Chemistry , University of Kalyani , Kalyani, India
| | - D. Saha
- a Department of Chemistry , University of Kalyani , Kalyani, India
| | - P. Debnath
- a Department of Chemistry , University of Kalyani , Kalyani, India
| |
Collapse
|
28
|
Majumdar K, Debnath P, Alam S, Maji P. Thiol-mediated radical cyclization: regioselective formation of indole-annulated sulfur heterocycles by tandem cyclization. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.07.132] [Citation(s) in RCA: 18] [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: 10/23/2022]
|
29
|
Majumdar K, Debnath P, Maji P. Thiophenol-catalyzed Claisen rearrangement and radical cyclization: formation of furo- and pyrano-coumarin derivatives. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.05.133] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
30
|
Majumdar K, Pal A, Taher A, Debnath P. Highly Effective Regioselective Method for the Synthesis of Substituted Coumarin- and Quinolone-Annulated Heterocycles Using a Palladium(0)-Catalyzed Reaction. SYNTHESIS-STUTTGART 2007. [DOI: 10.1055/s-2007-966052] [Citation(s) in RCA: 17] [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: 10/23/2022]
|
31
|
Majumdar KC, Debnath P, Pal AK, Chattopadhyay SK, Biswas A. Radical-mediated cyclization reactions leading to spiro and [6,6]-fused heterocycles. CAN J CHEM 2007. [DOI: 10.1139/v07-046] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Regiochemical study of nBu3SnH–AIBN-mediated aryl-radical cyclization of different 3-(2-bromophenyl sul fenylmethyl)coumarins, 3-(2-bromophenylsulfonyl-methyl)coumarins, and 6-[(2-bromophenoxy)methyl]-4-methoxypyran-2-ones have been investigated with the formation of different [6,6]-fused and spirocylic heterocycles. The sulfides and ethers were prepared from 3-chloromethyl coumarin and 6-(bromomethyl)-4-methoxy pyran-2-one with different 2-bromothiophenol and 2-bromophenols under classical alkylation condition. The corresponding sulfones were prepared by oxidation of the sulfides with m-CPBA.Key words: aryl-radical cyclization, coumarin and pyrone derivatives, 5-exo-trig, 5-endo-trig, nBu3SnH, sulfur heterocycles.
Collapse
|
32
|
De AK, Debnath P. Somatotype of Indian long distance (74 km and 19 km) swimmers of both sexes. J Sports Med Phys Fitness 1983; 23:319-21. [PMID: 6656230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
33
|
De AK, Debnath P, Nagchaudhuri J. Physical efficiency tests in Indian urban adolescent boys and girls. Br J Sports Med 1979; 13:66-9. [PMID: 465912 PMCID: PMC1859679 DOI: 10.1136/bjsm.13.2.66] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Simple anthropometric measurements and physical efficiency tests were performed on adolescent Indian urban boys between 10-14 years and girls between 11-14 years of age. The similar height and weight of the subjects of both sexes were observed and was suggestive of higher growth rate in girls than the boys during only the initial phase of adolescent growth spurt. The vital capacity (total, ml/cm of height, l/m2 of surface area), Peak Expiratory Flow Rate (total, l/cm of height, l/kg of weight, l/m2 of surface area, l/year of age) and grip strength were observed to be insignificantly different between the sexes.
Collapse
|