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Mehta DN, Thakkar VC, Mandviya P, Jadav B, Goswami R, Chavda R. Dermatoglyphic Patterns in Patients Having Impacted and Erupted Third Molars-A Comparative Study. J Pharm Bioallied Sci 2023; 15:S1142-S1144. [PMID: 37694040 PMCID: PMC10485471 DOI: 10.4103/jpbs.jpbs_188_23] [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: 02/24/2023] [Revised: 03/01/2023] [Accepted: 03/03/2023] [Indexed: 09/12/2023] Open
Abstract
Background The dermatoglyphics have been used in several researches for predicting various pathologies of oral cavity like periodontitis, dental caries, impacted teeth, mal-occlusion, developmental defects such as cleft lip and palate, and potentially malignant disorders. Impacted teeth may be associated with various pathologies such as caries, pericoronitis, dentigerous cysts, and keratocystic odontogenic tumors; therefore, predicting impacted teeth through dermatoglyphic patterns can help in diagnosis and future treatment planning of such event. Aims and Objectives The aim and objective of the study were to evaluate and compare various dermatoglyphic patterns in the patients with the impacted maxillary and/or mandibular third molar (group 1) and patients having erupted maxillary and/or mandibular third molar (group 2). Materials and Methods This study comprised totally 300 patients, which were divided into two groups, according to erupted or impacted maxillary and/or mandibular third molar visiting outpatient department, who fulfilled the selection criteria for the study. After a comprehensive clinical examination, dermatoglyphic patterns were recorded from the same individuals. Panoramic radiographs were taken to confirm the diagnosis. Data collected were entered in the spreadsheet and analyzed. For all tests, P value was set at <0.05 and was considered statistically significant. Result There was statistical significance noted in frequencies of whorl pattern in patients of group 1 and loop pattern in patients of group 2. Conclusion This study concluded that dermatoglyphic patterns can be used to assess the prevalence of impacted wisdom teeth.
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Affiliation(s)
- Dhaval N. Mehta
- Department of Oral Medicine and Radiology, Narsinhbhai Patel Dental College and Hospital, Sankalchand Patel University, Visnagar, Gujarat, India
| | - Vallabha C. Thakkar
- Department of Oral Medicine and Radiology, Narsinhbhai Patel Dental College and Hospital, Sankalchand Patel University, Visnagar, Gujarat, India
| | - Parth Mandviya
- Department of Oral Medicine and Radiology, Narsinhbhai Patel Dental College and Hospital, Sankalchand Patel University, Visnagar, Gujarat, India
| | - Braina Jadav
- Department of Oral Medicine and Radiology, Narsinhbhai Patel Dental College and Hospital, Sankalchand Patel University, Visnagar, Gujarat, India
| | - Riddhi Goswami
- Department of Oral Medicine and Radiology, (MDS- Oral Medicine and Radiology), Private Practitioner, Ahmedabad, Gujarat, India
| | - Raksha Chavda
- Department of Oral Medicine and Radiology, (MDS- Oral Medicine and Radiology), Private Practitioner, Ahmedabad, Gujarat, India
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Desai S, Jarmi T, Ruiz J, Paghdar S, Patel P, Malkani S, Nativi J, Yip D, Lyle M, Leoni J, Goswami R. Renal Function Stabilization in Patients with Advanced Heart Failure and Chronic Kidney Disease Supported with Impella 5.5 as a Bridge to Transplantation. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.528] [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: 04/05/2023] Open
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Wadiwala I, Garg P, Nativi J, Lyle M, Leoni J, Yip D, Goswami R, Patel P, Sareyyupoglu B, MM E, Jacob S, Landolfo K, Pham S. The Role of Impella 5.5 to Reduce Pulmonary Artery Pressures in Patients with Cardiac Amyloidosis with Small Ventricular Cavity as a Bridge to Heart Transplant. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1062] [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: 04/05/2023] Open
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Ruiz J, Desai S, Paghdar S, Malkani S, Nativi J, Yip D, Patel P, Leoni J, Lyle M, Goswami R. The Impact of Axillary Mechanical Circulatory Support in Patients Awaiting Heart Transplantation with Pulmonary Hypertension. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.820] [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: 04/05/2023] Open
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Desai S, Soto-Arenall M, Ruiz J, Postell A, Paghdar S, Malkani S, Nativi J, Patel P, Yip D, Lyle M, Leoni J, Goswami R. Systemic Effects of Impella 5.5 Purge Solution in Patients with Heart Failure Cardiogenic Shock. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.813] [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: 04/05/2023] Open
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6
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Goswami R, Jang J, Ruiz J, Desai S, Paghdar S, Malkani S, Yip D, Leoni J, Patel P, Lyle M, Nativi J. Artificial Intelligence to Predict Death or Transplant in ATTR Amyloidosis Cardiomyopathy. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.044] [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: 04/05/2023] Open
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Desai S, Ruiz J, Paghdar S, Malkani S, Nativi J, Juan L, Yip D, Patel P, Lyle M, Goswami R. Cardiogenic Shock in Eosinophilic Myocarditis. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.448] [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: 04/05/2023] Open
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Jang J, Ruiz J, Desai S, Sareyyupoglu B, Paghdar S, Malkani S, Landolfo K, Patel P, Nativi J, Yip D, Lyle M, Leoni J, Pham S, Goswami R. Mid-Term Survival in Patients with Advanced Heart Failure Receiving an Impella Device Intended as Bridge to Transplantation. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.047] [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: 04/05/2023] Open
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Dhakate M, Goswami D, Goswami R, Saha S, Kandasamy D, Arora M. Bone mineral density, vertebral fractures and trabecular bone score in primary ovarian insufficiency. J Endocrinol Invest 2023:10.1007/s40618-023-02045-z. [PMID: 36848018 DOI: 10.1007/s40618-023-02045-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 02/15/2023] [Indexed: 03/01/2023]
Abstract
PURPOSE Bone health in primary ovarian insufficiency (POI) is under-investigated. We assessed patients with spontaneous POI for vertebral fractures (VFs) and related parameters of bone health. METHODS 70 cases with spontaneous POI (age 32.5 ± 7.0 years) and an equal number of controls were assessed for BMD, TBS, and VFs. BMD at the lumbar-spine (L1-L4), left hip, non-dominant forearm, and TBS (iNsight software) were measured on a dual-energy X-ray absorptiometry (DXA) machine. VFs were assessed by Genant's classification. Serum FSH, LH, estradiol, T4, TSH, iPTH, serum 25(OH)D, total calcium, and inorganic phosphorus were measured. RESULTS BMD at the lumbar-spine, hip and forearm was reduced by 11.5%, 11.4% and 9.1% in POI as compared to controls (P < 0.001). Degraded or partially degraded microarchitecture on TBS was observed in 66.7% of patients and 38.2% of controls (P = 0.001). 15.7% of the POI patients had VFs, compared to 4.3% of controls (P = 0.045). Age, duration of amenorrhea and duration of HRT use were the significant predictors of TBS (P < 0.01). Serum 25(OH)D was the significant determinant of VFs. TBS abnormalities were higher in patients with POI and VFs. BMD was not significantly different in patients with and without VFs. CONCLUSION Thus, lumbar-spine osteoporosis, impaired TBS and VFs were present in 35.7%, 66.7% and 15.7% of patients with spontaneous POI in their early third decade. This indicates need for rigorous investigations for impaired bone health in these young patients and management with HRT, vitamin-D, and possible need for bisphosphonate therapy.
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Affiliation(s)
- M Dhakate
- Departments of Obstetrics and Gynecology, Maulana Azad Medical College, Bahadur Shah Zafar Marg, New Delhi, 110002, India
| | - D Goswami
- Departments of Obstetrics and Gynecology, Maulana Azad Medical College, Bahadur Shah Zafar Marg, New Delhi, 110002, India.
| | - R Goswami
- Department of Endocrinology, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - S Saha
- Department of Endocrinology, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - D Kandasamy
- Department of Radiodiagnosis, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - M Arora
- Department of Dietetics, Maulana Azad Medical College, New Delhi, 110002, India
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Giorgi E, Khadka P, Benko E, Kovacs C, Goswami R, Fouda G, Permar S, Caskey M, Jones RB, Lee G. PP 3.12 – 00180 Distinct HIV-1 resistance profiles against bNAb in intact vs defective viral genomes. J Virus Erad 2022. [DOI: 10.1016/j.jve.2022.100192] [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: 12/24/2022] Open
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Adedinsewo D, Hardway H, Morales-Lara CA, Johnson P, Douglass E, Dangott B, Nakhleh R, Narula T, Patel P, Goswami R, Heckman A, Lopez-Jimenez F, Noseworthy P, Yamani M, Carter R. Screening for cardiac allograft rejection among heart transplant recipients using an electrocardiogram-based deep learning model. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Current approaches utilizing non-invasive methods to screen for cardiac allograft rejection (gene expression profiling and cell free DNA) have yet to be broadly integrated into heart transplant management and have shown limited discrimination (AUCs of 0.68 and 0.77, respectively). Changes in the electrocardiogram (ECG) have been reported at the time of severe cardiac rejection, including low voltages and conduction abnormalities. It remains unknown if subtle ECG changes correlating with cardiac allograft rejection can be detected earlier using machine learning methods.
Purpose
We sought to develop an artificial intelligence (AI) model to detect cardiac allograft rejection based on the 12 lead ECG.
Methods
We identified all patients who underwent a heart transplant at 3 hospital sites within a single health system from Jan 1998 through Apr 2021 and extracted digital 12-lead ECG data as well as endomyocardial biopsy pathology results from the electronic medical record. We partitioned our data into a training (80%), validation (10%), and test set (10%) based on a group stratification sampling. Each patient was present in only one set and each set had a positivity rate of 2.6% with 6,074/758/758 ECGs belonging to 1,146/140/141 unique patients in each set respectively. Cardiac allograft rejection was defined as moderate or severe acute cellular rejection based on International Society for Heart and Lung Transplantation (ISHLT) guidelines. A convolutional neural network, using the 12-lead ECG data as input, was trained with hyperparameter optimization for regularization, learning rate adjustments, and class weights. Model performance metrics were based on the test data and estimated using the final model architecture.
Results
1,587 heart transplant recipients who had at least one endomyocardial biopsy were evaluated for inclusion. We limited our sample to ECGs performed within 30 days of the biopsy date (7,590 ECGs, representing 1,425 unique patients). Our study population had a median age of 55.8 years and 28.7% were female. The median number of ECG-biopsy pairs per patient was 5. The majority of endomyocardial biopsy results were classified as none or mild rejection (97.1%), and 2.9% had moderate/severe rejection. The ECG-based AI model detected cardiac allograft rejection with an area under the receiver operative curve (AUC) of 0.84 in the test set. The sensitivity, specificity, positive and negative predictive values were 95%, 52.6%. 5.2% and 99.7% respectively.
Conclusions
An AI-ECG model appears to outperform novel non-invasive laboratory tests (gene expression profiling and cell free DNA) for detecting cardiac allograft rejection and does not require a blood draw or the additional complexities surrounding sample processing. This model relies on a readily available and relatively inexpensive test, the ECG. In addition, AI predictions can be made available within a few minutes following ECG acquisition.
Funding Acknowledgement
Type of funding sources: Private hospital(s). Main funding source(s): Mayo Clinic
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Affiliation(s)
- D Adedinsewo
- Mayo Clinic, Cardiovascular Medicine , Jacksonville , United States of America
| | - H Hardway
- Mayo Clinic, Quantitative Health Sciences , Jacksonville , United States of America
| | - C A Morales-Lara
- Mayo Clinic, Cardiovascular Medicine , Jacksonville , United States of America
| | - P Johnson
- Mayo Clinic, Quantitative Health Sciences , Jacksonville , United States of America
| | - E Douglass
- Mayo Clinic, Cardiovascular Medicine , Jacksonville , United States of America
| | - B Dangott
- Mayo Clinic, Laboratory Medicine and Pathology , Jacksonville , United States of America
| | - R Nakhleh
- Mayo Clinic, Laboratory Medicine and Pathology , Jacksonville , United States of America
| | - T Narula
- Mayo Clinic, Transplant Medicine , Jacksonville , United States of America
| | - P Patel
- Mayo Clinic, Transplant Medicine , Jacksonville , United States of America
| | - R Goswami
- Mayo Clinic, Transplant Medicine , Jacksonville , United States of America
| | - A Heckman
- Mayo Clinic, Cardiovascular Medicine , Jacksonville , United States of America
| | - F Lopez-Jimenez
- Mayo Clinic, Cardiovascular Medicine , Rochester , United States of America
| | - P Noseworthy
- Mayo Clinic, Cardiovascular Medicine , Rochester , United States of America
| | - M Yamani
- Mayo Clinic, Cardiovascular Medicine , Jacksonville , United States of America
| | - R Carter
- Mayo Clinic, Quantitative Health Sciences , Jacksonville , United States of America
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12
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Saha S, Mannar V, Kandasamy D, Sreenivas V, Goswami R. Vertebral fractures, trabecular bone score and their determinants in chronic hypoparathyroidism. J Endocrinol Invest 2022; 45:1777-1786. [PMID: 35585296 DOI: 10.1007/s40618-022-01818-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 05/03/2022] [Indexed: 10/18/2022]
Abstract
PURPOSE Patients with hypoparathyroidism are at risk of vertebral fractures (VFs) despite high bone mineral density (BMD). We investigated this paradox by assessing trabecular bone score (TBS) and hip structural analysis (HSA) in non-surgical chronic hypoparathyroidism (cHypoPT) with and without VFs. METHODS 152 cHypoPT patients (age 40.2 ± 13.4 years, M: F = 81:71) with a median follow-up of 8 (2-13) years were assessed for BMD, VFs, TBS, and HSA and compared with 152 healthy controls. VFs at T7-L4 were assessed by Genant's method. Average serum total calcium and phosphorus during follow-up were assessed. RESULTS The lumbar spine and hip BMD were higher by 25.4 and 13.4% in cHypoPT than controls (P < 0.001). Paradoxically, VFs (30.9 vs.7.9%), including multiple (12.5 vs. 2.6%) were higher in cHypoPT (P < 0.001). Though overall average TBS (1.411 ± 0.091) was normal in cHypoPT, 25.4% of the females had subnormal TBS, more in post than pre-menopausal women (52.3 vs. 14%, P = 0.002) and as compared to males (6.1%, P = 0.001). TBS correlated with menopausal status and follow-up serum calcium-phosphorus product. For every gm/cm2 rise in BMD, TBS increase was only 0.227 in cHypoPT compared to 0.513 in controls. Frequency of VFs increased with declining TBS (P = 0.004). HSA was comparable between cHypoPT with and without VFs. 23.4% of cHypoPT with VFs had subnormal TBS. CONCLUSION 31% of cHypoPT patients had VFs. TBS indicated degraded bone microarchitecture in 50% of the post-menopausal cHypoPT women. However, TBS has limitations to detect abnormal bone microarchitecture in cHypoPT as only one-fourth of patients with VFs showed low TBS.
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Affiliation(s)
- S Saha
- Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - V Mannar
- Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - D Kandasamy
- Department of Radiodiagnosis, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - V Sreenivas
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - R Goswami
- Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, New Delhi, 110029, India.
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Ruiz Morales J, Nativi-Nicolau J, Jang J, Patel P, Yip D, Leoni-Moreno J, Goswami R. Artificial Intelligence 12 Lead ECG Based Heart Age Estimation and 1-year Outcomes After Heart Transplantation. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1671] [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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Jang J, Nativi-Nicolau J, Yip D, Patel P, Leoni-Moreno J, Goswami R. Impact of SGLT2i Use on Functional Capacity in Heart Failure. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1388] [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] Open
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15
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Goswami R, Feliberti J, Cyrille-Superville N, Rao S, DeVore A, Najjar S, Patel P, Sinha S, Snipelisky D, Jeng E, Grinstein J. Interpretation of Hemodynamic Catheterization Data by Years of Experience: An International Survey of Cardiologists. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1116] [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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16
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Villa D, Scott DW, Morin R, Nakamura H, Larouche JF, Cheung M, Johnson N, Elemary M, Keating MM, Tonseth P, Zukotynski K, Mayo S, Goswami R, Laister R, Kuruvilla J. A PHASE II STUDY OF ACALABRUTINIB IN COMBINATION WITH R‐CHOP CHEMOTHERAPY PRIOR TO AUTOLOGOUS STEM CELL TRANSPLANTATION IN PREVIOUSLY UNTREATED MANTLE CELL LYMPHOMA. Hematol Oncol 2021. [DOI: 10.1002/hon.171_2880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- D. Villa
- BC Cancer, Centre for Lymphoid Cancer Vancouver Canada
| | - D. W. Scott
- BC Cancer, Centre for Lymphoid Cancer Vancouver Canada
| | - R. Morin
- BC Cancer, Centre for Lymphoid Cancer Vancouver Canada
| | - H. Nakamura
- BC Cancer, Centre for Lymphoid Cancer Vancouver Canada
| | - J. F. Larouche
- Centre Hospitalier Universitaire de Québec Hôpital de l’Enfant‐Jésus Quebec City Canada
| | - M. Cheung
- Sunnybrook Health Sciences Centre Department of Hematology Toronto Canada
| | - N. Johnson
- Jewish General Hospital Department of Hematology Montreal Canada
| | - M. Elemary
- Saskatchewan Cancer Agency Saskatoon Cancer Centre Saskatoon Canada
| | - M. M. Keating
- Nova Scotia Cancer Centre QEII Health Sciences Centre Halifax Canada
| | - P. Tonseth
- BC Cancer Department of Functional Imaging Vancouver Canada
| | - K. Zukotynski
- McMaster University Departments of Radiology and Medicine Hamilton Canada
| | - S. Mayo
- University of Toronto Lawrence S. Bloomberg Faculty of Nursing Toronto Canada
| | - R. Goswami
- Sunnybrook Health Sciences Centre Department of Laboratory Medicine and Pathobiology Toronto Canada
| | - R. Laister
- University Health Network Princess Margaret Cancer Centre Toronto Canada
| | - J. Kuruvilla
- University Health Network Princess Margaret Cancer Centre Toronto Canada
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Ruiz J, Kandah F, Ganji M, Goswami R. The First Reported Case of COVID-19 Myocarditis Managed with Biventricular Impella Support. J Heart Lung Transplant 2021. [PMCID: PMC7979384 DOI: 10.1016/j.healun.2021.01.2079] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Introduction SARS-CoV-2, responsible for COVID-19, is a pandemic that has taken the world by storm. We present the only contemporary reported case of COVID-19 myocarditis leading to recovery with utilization of biventricular impella for temporary mechanical circulatory support. No cases have been reported regarding utilization of Bi-V impella as therapy for management of SARS-CoV-2.. Case Report We present a 35 year old-woman with history of systemic sclerosis who was found to have 5 days of generalized malaise associated with fevers and cough. On arrival she was found tachycardic at 112 bpm and febrile 101.8 F. She tested positive for COVID-19 via nasal CPR. Cardiac enzymes were found elevated on admission with troponin T elevated at 0.28. On day two of hospitalization patient had spontaneous PEA arrest secondary to hypoxemia. Transthoracic echocardiogram(TTE) revealed EF <10% and RV impairment which compare to prior which had normal ejection fraction. Labs showed elevated lactic acidosis of 10. Invasive hemodynamics assessment RA 21 mmHg, PA 32/23(mean 26 mmHg) and PCWP 18 mmHg. Calculated PAPi 0.76, CO 2.1 L/min and CI of 1.2 L/min/m^2. Decision was made to place right and left sided ventricular impellas for mechanical circulatory support. She was started on IVIG for COVID-19 myocarditis along with remdesivir and solumedrol. After two weeks of continuous temporary mechanical circulatory support(TMCS), patient hemodynamics improved and she was able to be weaned from her need for TMCS. Repeat echocardiogram demonstrated recovery and remodeling with an LVEF of 60% and no significant valvular disease. She was discharge home at day 23 with no neurological deficit. Summary The use of biventricular continuous microaxial flow devices during acute COVID-19 myocarditis is key to allow ventricular rest and optimal offloading without the increased risk of surgically placed TMCS such as Centrimag or VA or VV ECMO. With recent emergency use by the FDA, its wide adaptation remains sparse. Our case demonstrates a unique approach to management of COVID-19 myocarditis. It is the only reported case in the literature utilizing biventricular Impella devices for circulatory support without the concurrent use of ECMO. Due to the success in this patient, this promising approach warrants continued investigation in the management of COVID myocarditis and cardiogenic shock.
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Chaudhuri P, Das M, Lodh I, Goswami R. Role of Metabolic Risk Factors, Family History, and Genetic Polymorphisms (PPARγ and TCF7L2) on Type 2 Diabetes Mellitus Risk in an Asian Indian Population. Public Health Genomics 2021; 24:131-138. [PMID: 33784687 DOI: 10.1159/000514506] [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: 06/22/2020] [Accepted: 01/12/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Women with family history of diabetes (FHD) are at significantly increased risk of developing gestational diabetes mellitus which may eventually lead to type 2 diabetes mellitus (T2DM) in later life. OBJECTIVE This study investigates the role of FHD on metabolic markers and gene polymorphisms and hence on T2DM susceptibility in nondiabetic pregnant women and the subsequent risks in their newborns. MATERIALS AND METHODS The present study was conducted on 200 healthy (nondiabetic and normotensive) adult Asian Indian women, including 100 with and 100 without FHD, living in and around Kolkata, India. During the gestational period, they were studied twice and followed up till delivery. During delivery, both mothers' venous blood and cord blood were collected to estimate serum CRP, glucose, and lipid profiles of the respective mothers and their newborns. Genotyping of PPARγ and TCF7L2 polymorphisms was done from these blood samples. RESULTS A comparison of the metabolic variables among the subjects with and without FHD revealed significant differences among them. We also found close relationship between mothers and their newborn babies in terms of both PPARγ (rs1801282) C/G and TCF7L2 (rs7903146) C/T polymorphisms. More specifically, genotyping results for mothers with FHD and their newborn babies showed high concordance in inheritance of alleles: (i) for PPARγ via the risk allele G (74.0%) which is carried over to the newborn babies (64.5%) and (ii) for TCF7L2 via the risk allele T (73.0%) which is carried over to the newborn babies (68.5%). CONCLUSION This study leads to the conclusion that Asian Indian women population based in Kolkata, India, are ethnically and genetically predisposed to the risk factors of diabetes through FHD, which is reflected in their gestational phase, and it has a significant implication on their birth outcomes.
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Affiliation(s)
- Plaban Chaudhuri
- Department of Biotechnology, Heritage Institute of Technology, Kolkata, India
| | - Mithun Das
- Department of Anthropology & Tribal Studies, Sidho-Kanho-Birsha University, Purulia, India
| | | | - Riddhi Goswami
- Department of Biotechnology, Heritage Institute of Technology, Kolkata, India
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Distler T, Kretzschmar L, Schneidereit D, Girardo S, Goswami R, Friedrich O, Detsch R, Guck J, Boccaccini AR, Budday S. Mechanical properties of cell- and microgel bead-laden oxidized alginate-gelatin hydrogels. Biomater Sci 2021; 9:3051-3068. [PMID: 33666608 DOI: 10.1039/d0bm02117b] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
3D-printing technologies, such as biofabrication, capitalize on the homogeneous distribution and growth of cells inside biomaterial hydrogels, ultimately aiming to allow for cell differentiation, matrix remodeling, and functional tissue analogues. However, commonly, only the mechanical properties of the bioinks or matrix materials are assessed, while the detailed influence of cells on the resulting mechanical properties of hydrogels remains insufficiently understood. Here, we investigate the properties of hydrogels containing cells and spherical PAAm microgel beads through multi-modal complex mechanical analyses in the small- and large-strain regimes. We evaluate the individual contributions of different filler concentrations and a non-fibrous oxidized alginate-gelatin hydrogel matrix on the overall mechanical behavior in compression, tension, and shear. Through material modeling, we quantify parameters that describe the highly nonlinear mechanical response of soft composite materials. Our results show that the stiffness significantly drops for cell- and bead concentrations exceeding four million per milliliter hydrogel. In addition, hydrogels with high cell concentrations (≥6 mio ml-1) show more pronounced material nonlinearity for larger strains and faster stress relaxation. Our findings highlight cell concentration as a crucial parameter influencing the final hydrogel mechanics, with implications for microgel bead drug carrier-laden hydrogels, biofabrication, and tissue engineering.
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Affiliation(s)
- T Distler
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander-University Erlangen-Nürnberg, 91058 Erlangen, Germany.
| | - L Kretzschmar
- Institute of Applied Mechanics, Department of Mechanical Engineering, Friedrich-Alexander-University Erlangen-Nürnberg, 91058 Erlangen, Germany.
| | - D Schneidereit
- Institute of Medical Biotechnology, Department of Chemical and Biological Engineering, Friedrich-Alexander-University Erlangen-Nürnberg, 91056 Erlangen, Germany
| | - S Girardo
- Max Planck Institute for the Science of Light and Max-Planck-Zentrum für Physik und Medizin, Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - R Goswami
- Max Planck Institute for the Science of Light and Max-Planck-Zentrum für Physik und Medizin, Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - O Friedrich
- Institute of Medical Biotechnology, Department of Chemical and Biological Engineering, Friedrich-Alexander-University Erlangen-Nürnberg, 91056 Erlangen, Germany
| | - R Detsch
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander-University Erlangen-Nürnberg, 91058 Erlangen, Germany.
| | - J Guck
- Max Planck Institute for the Science of Light and Max-Planck-Zentrum für Physik und Medizin, Erlangen-Nürnberg, 91058 Erlangen, Germany and Chair of Biological Optomechanics, Department of Physics, Friedrich-Alexander-University Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - A R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, Friedrich-Alexander-University Erlangen-Nürnberg, 91058 Erlangen, Germany.
| | - S Budday
- Institute of Applied Mechanics, Department of Mechanical Engineering, Friedrich-Alexander-University Erlangen-Nürnberg, 91058 Erlangen, Germany.
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Träber N, Uhlmann K, Girardo S, Kesavan G, Wagner K, Friedrichs J, Goswami R, Bai K, Brand M, Werner C, Balzani D, Guck J. Polyacrylamide Bead Sensors for in vivo Quantification of Cell-Scale Stress in Zebrafish Development. Sci Rep 2019; 9:17031. [PMID: 31745109 PMCID: PMC6864055 DOI: 10.1038/s41598-019-53425-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 10/23/2019] [Indexed: 11/09/2022] Open
Abstract
Mechanical stress exerted and experienced by cells during tissue morphogenesis and organ formation plays an important role in embryonic development. While techniques to quantify mechanical stresses in vitro are available, few methods exist for studying stresses in living organisms. Here, we describe and characterize cell-like polyacrylamide (PAAm) bead sensors with well-defined elastic properties and size for in vivo quantification of cell-scale stresses. The beads were injected into developing zebrafish embryos and their deformations were computationally analyzed to delineate spatio-temporal local acting stresses. With this computational analysis-based cell-scale stress sensing (COMPAX) we are able to detect pulsatile pressure propagation in the developing neural rod potentially originating from polarized midline cell divisions and continuous tissue flow. COMPAX is expected to provide novel spatio-temporal insight into developmental processes at the local tissue level and to facilitate quantitative investigation and a better understanding of morphogenetic processes.
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Affiliation(s)
- N Träber
- Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Str. 6, 01069, Dresden, Germany
- Biotechnology Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Tatzberg 47/49, 01307, Dresden, Germany
| | - K Uhlmann
- Chair of Continuum Mechanics, Ruhr-Universität Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| | - S Girardo
- Biotechnology Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Tatzberg 47/49, 01307, Dresden, Germany
- Center for Regenerative Therapies Dresden, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Fetscherstr. 105, 01307, Dresden, Germany
- Max Planck Institute for the Science of Light, Staudtstraße 2, 91058, Erlangen, Germany
| | - G Kesavan
- Center for Regenerative Therapies Dresden, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Fetscherstr. 105, 01307, Dresden, Germany
| | - K Wagner
- Biotechnology Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Tatzberg 47/49, 01307, Dresden, Germany
| | - J Friedrichs
- Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Str. 6, 01069, Dresden, Germany
| | - R Goswami
- Center for Regenerative Therapies Dresden, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Fetscherstr. 105, 01307, Dresden, Germany
- Max Planck Institute for the Science of Light, Staudtstraße 2, 91058, Erlangen, Germany
| | - K Bai
- Center for Regenerative Therapies Dresden, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Fetscherstr. 105, 01307, Dresden, Germany
| | - M Brand
- Center for Regenerative Therapies Dresden, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Fetscherstr. 105, 01307, Dresden, Germany
| | - C Werner
- Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Str. 6, 01069, Dresden, Germany
| | - D Balzani
- Chair of Continuum Mechanics, Ruhr-Universität Bochum, Universitätsstraße 150, 44801, Bochum, Germany.
| | - J Guck
- Biotechnology Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Tatzberg 47/49, 01307, Dresden, Germany.
- Max Planck Institute for the Science of Light, Staudtstraße 2, 91058, Erlangen, Germany.
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Sengupta S, Bhattacharyya DK, Goswami R, Bhowal J. Emulsions stabilized by soy protein nanoparticles as potential functional non-dairy yogurts. J Sci Food Agric 2019; 99:5808-5818. [PMID: 31177542 DOI: 10.1002/jsfa.9851] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 06/05/2019] [Accepted: 06/05/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Rice bran oil and soy protein nanoparticles (SPNs) may be considered as novel functional food ingredients for soy yogurt production. Formulation of soy yogurt with SPNs and rice bran oil, which has significant physiological functions, will convert them into functional food products. This study was conducted to develop rice bran oil-based soy protein nanoparticles emulsion (SPNE) and to evaluate physical properties, antioxidant activities, oxidative stability and microbiological load as well as textural attributes of SPNs incorporated yogurt (SPNY) during storage at 4 °C for 45 days. RESULTS SPNs were prepared from soy protein isolate of defatted soy flour. Solubilization, crystallization and ultrasonication was carried out six times. After the sixth cycle of repeated solubilizing, crystallization and ultrasonication, the size of nano protein was reduced to 72.42 ± 0.22 nm from 586.72 ± 0.75 nm (after first cycle). Viscosity, penetration values and water-holding capacity of SPNs added to yogurt were decreased with increase in reduction size of SPNs. SPNs added to yogurt exhibited greater antiradical scavenging ability and ferric reducing antioxidant property than control yogurt. Fortified soy yogurt had significant higher oxidative stability and proteolytic activity. CONCLUSION Fortification of non-dairy food products with SPNs, which has significant physiological functions, convert conventional soy yogurt into functional food products. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Samadrita Sengupta
- School of Community Science and Technology (SOCSAT), Indian Institute of Engineering Science and Technology (IIEST), SHIBPUR, Howrah, India
| | - Dipak K Bhattacharyya
- School of Community Science and Technology (SOCSAT), Indian Institute of Engineering Science and Technology (IIEST), SHIBPUR, Howrah, India
| | - Riddhi Goswami
- Department of Biotechnology, Heritage Institute of Technology, Kolkata, India
| | - Jayati Bhowal
- School of Community Science and Technology (SOCSAT), Indian Institute of Engineering Science and Technology (IIEST), SHIBPUR, Howrah, India
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Girardo S, Träber N, Wagner K, Cojoc G, Herold C, Goswami R, Schlüßler R, Abuhattum S, Taubenberger A, Reichel F, Mokbel D, Herbig M, Schürmann M, Müller P, Heida T, Jacobi A, Ulbricht E, Thiele J, Werner C, Guck J. Standardized microgel beads as elastic cell mechanical probes. J Mater Chem B 2018; 6:6245-6261. [PMID: 32254615 DOI: 10.1039/c8tb01421c] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Cell mechanical measurements are gaining increasing interest in biological and biomedical studies. However, there are no standardized calibration particles available that permit the cross-comparison of different measurement techniques operating at different stresses and time-scales. Here we present the rational design, production, and comprehensive characterization of poly-acrylamide (PAAm) microgel beads mimicking size and overall mechanics of biological cells. We produced mono-disperse beads at rates of 20-60 kHz by means of a microfluidic droplet generator, where the pre-gel composition was adjusted to tune the beads' elasticity in the range of cell and tissue relevant mechanical properties. We verified bead homogeneity by optical diffraction tomography and Brillouin microscopy. Consistent elastic behavior of microgel beads at different shear rates was confirmed by AFM-enabled nanoindentation and real-time deformability cytometry (RT-DC). The remaining inherent variability in elastic modulus was rationalized using polymer theory and effectively reduced by sorting based on forward-scattering using conventional flow cytometry. Our results show that PAAm microgel beads can be standardized as mechanical probes, to serve not only for validation and calibration of cell mechanical measurements, but also as cell-scale stress sensors.
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Affiliation(s)
- S Girardo
- Biotechnology Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Tatzberg 47/49, 01307 Dresden, Germany.
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Nair A, Kandasamy D, Sharma R, Nag HL, Singh U, Bhatia H, Saha S, Tandon N, Goswami R. Shoulder Periarthritis and its Imaging Features in Patients with Type 1 Diabetes Mellitus. Annals of the National Academy of Medical Sciences (India) 2017. [DOI: 10.1055/s-0040-1712810] [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: 10/24/2022] Open
Abstract
ABSTRACT
Aim: There is limited information on periarthritis/adhesive capsulitis of the shoulder (ACS) in patients with type-1-diabetes mellitus (T1D). We assessed the prevalence and characteristics of ACS in patients with type-1-diabetes mellitus.
Methods: Consecutive 267 patients attending 'Diabetes of Young Clinic' were screened for ACS. Those with clinical features of ACS were further assessed by 'shoulder pain and disability index' (SPADI), radiograph and MRI of the shoulder. The average glycemic status (HbA1c) during preceding 2 years was assessed in patients with and without ACS. Controls were age and sex matched healthy subjects (1:1 ratio).
Results: Sixteen of 267 patients (6.0%) with type-1-diabetes had clinical features of ACS, unlike none of the healthy controls (P < 0.001). Internal and external rotation of the shoulders was the most frequently restricted movements in ACS. Thickened coracohumeral ligament and axillary pouch obliteration was characteristic MRI feature, present in 80.0% in 73.3% cases, respectively. Though 14/16 type-1-diabetes patients with ACS were symptomatic, they never reported these complaints in diabetic clinic with the treating physicians. On regression analysis (odds ratio; 95% CI), duration of diabetes (1.1; 1.03-1.17, P < 0.01), retinopathy (3.6; 1.05-12.52, P = 0.04), and limited joint mobility (6.4; 1.88-21.95, P < 0.01) were independent predictors for presence of ACS in type-1-diabetes. The mean HbA1c and lipid levels were comparable in patients with or without ACS.
Conclusions: Six percent of patients with type-1-diabetes had ACS, which can be detected on clinical screening and confirmed by imaging to help initiate early treatment.
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Affiliation(s)
- Abhilash Nair
- Dept. of Endocrinology and Metabolism, Government Medical College, Thiruvananthapuram, All India Institute of Medical Sciences, New Delhi
| | | | - Raju Sharma
- Dept. of Radio-diagnosis, All India Institute of Medical Sciences, New Delhi
| | - HL Nag
- Dept. of Orthopedics, All India Institute of Medical Sciences, New Delhi
| | - Upiderpal Singh
- Dept. of Physical Medicine and Rehabilitation, All India Institute of Medical Sciences, New Delhi
| | - Himani Bhatia
- Dept. of Endocrinology and Metabolism, All India Institute of Medical Sciences, New Delhi
| | - Soma Saha
- Dept. of Endocrinology and Metabolism, All India Institute of Medical Sciences, New Delhi
| | - Nikhil Tandon
- Dept. of Endocrinology and Metabolism, All India Institute of Medical Sciences, New Delhi
| | - R. Goswami
- Dept. of Endocrinology and Metabolism, All India Institute of Medical Sciences, New Delhi
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Abstract
Stress-assisted grain growth at room temperature is known for materials with nanocrystalline grains. For larger grain sizes, the grain growth usually takes place at higher homologous temperatures even under stress. Here we report, for the first time, significant grain growth at room temperature under fatigue loading in microcrystalline grains (≥10 μm) in Al 7075. We demonstrate that this grain growth at room temperature is similar to non-uniform grain growth due to grain rotation and coalescence rather than the thermally and the stress-assisted driven grain growth. We show that the grain growth is associated with the formation of a strong near-Cu {112}<111> texture component as a result of fatigue-assisted deformation. These changes in microstructural features (viz., grain size, grain orientations and texture) are fundamentally important in understanding the cyclic crack induced deformation behavior and for predicting the fatigue lifetime in structural materials.
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Affiliation(s)
- R Goswami
- Multifunctional Materials, Materials Science and Technology Division, Naval Research Laboratory, Washington DC, 20375, USA.
| | - C R Feng
- Multifunctional Materials, Materials Science and Technology Division, Naval Research Laboratory, Washington DC, 20375, USA
| | - S B Qadri
- Multifunctional Materials, Materials Science and Technology Division, Naval Research Laboratory, Washington DC, 20375, USA
| | - C S Pande
- Multifunctional Materials, Materials Science and Technology Division, Naval Research Laboratory, Washington DC, 20375, USA
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Affiliation(s)
- R Goswami
- Departments of *Endocrinology and Metabolism, AIIMS; and #Pediatrics and Clinical Epidemiology, Sitaram Bhartia Institute of Science and Research; New Delhi, India.
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Goswami R, Kaplan M. STAT Transcription Factors in T Cell Control of Health and Disease. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2017; 331:123-180. [DOI: 10.1016/bs.ircmb.2016.09.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Abstract
There has been limited success defining environmental factors important to the development of connective tissue diseases such as systemic lupus erythematosus (SLE). Recent work has suggested that the perinatal environment may be important. To investigate this we measured antinuclear antibodies (ANA) in a general population with well-defined early lives to see whether fetal and infant growth and infections were associated with ANA positivity in adult life. Included in our investigation were 1334 individuals (668 men, 666 women) from the Hertfordshire cohort study. ANA was measured using an ANA ELISA and confirmed using immunofluorescence. We investigated associations between the presence of ANA and early growth and infectious exposure in infancy in men and women combined, but with adjustment for gender throughout. A positive ANA was present in 73 (10.9%) of men and 81 (12.2%) women. Of these, 26 women and 14 men were positive using IF on HEP2 cells. Sharing a bedroom during childhood was associated with a higher risk of being ANA positive (odds ratio (OR), 1.42, 95% confidence interval (CI) 1.00-2.01, P = 0.05). A record of diarrhoeal illness (OR 2.12 95% CI 1.07, 4.23, P = 0.03) and rubella or mumps during the first year of life (OR 16.12, 95% CI 2.92, 88.94, P = 0.001) was also significantly associated with ANA in adult life. Higher ANA titres by Inova ELISA were associated with infections in the first year of life from mumps (2.74-fold higher, 95% CI 0.98, 7.64, P = 0.05) and rubella (3.90-fold higher, 95% CI 1.89, 8.04, P < 0.001). In addition, higher ANA titres were also associated with mumps (1.26-fold higher, 95% CI 1.02, 1.56, P = 0.03) between one and five years of age. Our results suggest that a developing immune system exposed to increased infection is more likely to produce ANA in adult life and perhaps begin the pathological process that leads to SLE.
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Affiliation(s)
- C J Edwards
- Medical Research Council Epidemiology Resource Centre, Southampton, UK.
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Sengupta S, Goswami R, Basu S, Bhowal J. Hypolipidemic effects of soy yogurt fortified with antioxidant rich vegetable oil on albino mice fed high cholesterol diet. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.matpr.2016.10.004] [Citation(s) in RCA: 6] [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: 10/20/2022]
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Balasubramanian SR, Maheswari D, Cynthia A, Balaji Rao K, Goswami R, Sivakumar P. Experimental Determination of Statistical Parameters Associated with Uniaxial Compression Behaviour of Brick Masonry. CURR SCI INDIA 2015. [DOI: 10.18520/cs/v109/i11/2094-2102] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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30
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Balasubramanian SR, Maheswari D, Cynthia A, Balaji Rao K, Goswami R, Sivakumar P. Experimental Determination of Statistical Parameters Associated with Uniaxial Compression Behaviour of Brick Masonry. CURR SCI INDIA 2015. [DOI: 10.18520/v109/i11/2094-2102] [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: 11/15/2022]
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31
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Goswami R, Dufort P, Tartaglia MC, Green RE, Crawley A, Tator CH, Wennberg R, Mikulis DJ, Keightley M, Davis KD. Frontotemporal correlates of impulsivity and machine learning in retired professional athletes with a history of multiple concussions. Brain Struct Funct 2015; 221:1911-25. [PMID: 25721800 PMCID: PMC4853456 DOI: 10.1007/s00429-015-1012-0] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Accepted: 02/11/2015] [Indexed: 12/15/2022]
Abstract
The frontotemporal cortical network is associated with behaviours such as impulsivity and aggression. The health of the uncinate fasciculus (UF) that connects the orbitofrontal cortex (OFC) with the anterior temporal lobe (ATL) may be a crucial determinant of behavioural regulation. Behavioural changes can emerge after repeated concussion and thus we used MRI to examine the UF and connected gray matter as it relates to impulsivity and aggression in retired professional football players who had sustained multiple concussions. Behaviourally, athletes had faster reaction times and an increased error rate on a go/no-go task, and increased aggression and mania compared to controls. MRI revealed that the athletes had (1) cortical thinning of the ATL, (2) negative correlations of OFC thickness with aggression and task errors, indicative of impulsivity, (3) negative correlations of UF axial diffusivity with error rates and aggression, and (4) elevated resting-state functional connectivity between the ATL and OFC. Using machine learning, we found that UF diffusion imaging differentiates athletes from healthy controls with significant classifiers based on UF mean and radial diffusivity showing 79–84 % sensitivity and specificity, and 0.8 areas under the ROC curves. The spatial pattern of classifier weights revealed hot spots at the orbitofrontal and temporal ends of the UF. These data implicate the UF system in the pathological outcomes of repeated concussion as they relate to impulsive behaviour. Furthermore, a support vector machine has potential utility in the general assessment and diagnosis of brain abnormalities following concussion.
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Affiliation(s)
- R Goswami
- Canadian Sports Concussion Project, Toronto Western Hospital, Toronto, Canada.,Division of Brain, Imaging and Behaviour-Systems Neuroscience, Toronto Western Research Institute, Toronto Western Hospital, University Health Network, 399 Bathurst Street, Room MP14-306, Toronto, ON, M5T 2S8, Canada
| | - P Dufort
- Canadian Sports Concussion Project, Toronto Western Hospital, Toronto, Canada.,Department of Medical Imaging, Toronto Western Hospital and University of Toronto, Toronto, Canada
| | - M C Tartaglia
- Canadian Sports Concussion Project, Toronto Western Hospital, Toronto, Canada.,Tanz Centre for Research in Neurodegenerative Diseases, University of Toronto, Toronto, Canada.,Division of Neurology, Krembil Neuroscience Centre, Toronto, Canada
| | - R E Green
- Canadian Sports Concussion Project, Toronto Western Hospital, Toronto, Canada.,Toronto Rehabilitation Institute, University Health Network, Toronto, Canada
| | - A Crawley
- Canadian Sports Concussion Project, Toronto Western Hospital, Toronto, Canada.,Division of Brain, Imaging and Behaviour-Systems Neuroscience, Toronto Western Research Institute, Toronto Western Hospital, University Health Network, 399 Bathurst Street, Room MP14-306, Toronto, ON, M5T 2S8, Canada.,Department of Medical Imaging, Toronto Western Hospital and University of Toronto, Toronto, Canada.,Institute of Medical Science, University of Toronto, Toronto, Canada
| | - C H Tator
- Canadian Sports Concussion Project, Toronto Western Hospital, Toronto, Canada.,Division of Brain, Imaging and Behaviour-Systems Neuroscience, Toronto Western Research Institute, Toronto Western Hospital, University Health Network, 399 Bathurst Street, Room MP14-306, Toronto, ON, M5T 2S8, Canada.,Institute of Medical Science, University of Toronto, Toronto, Canada.,Division of Neurosurgery, Krembil Neuroscience Centre, Toronto Western Hospital, Toronto, Canada.,Department of Surgery, University of Toronto, Toronto, Canada
| | - R Wennberg
- Canadian Sports Concussion Project, Toronto Western Hospital, Toronto, Canada.,Division of Neurology, Krembil Neuroscience Centre, Toronto, Canada
| | - D J Mikulis
- Canadian Sports Concussion Project, Toronto Western Hospital, Toronto, Canada.,Division of Brain, Imaging and Behaviour-Systems Neuroscience, Toronto Western Research Institute, Toronto Western Hospital, University Health Network, 399 Bathurst Street, Room MP14-306, Toronto, ON, M5T 2S8, Canada.,Department of Medical Imaging, Toronto Western Hospital and University of Toronto, Toronto, Canada.,Institute of Medical Science, University of Toronto, Toronto, Canada
| | - M Keightley
- Canadian Sports Concussion Project, Toronto Western Hospital, Toronto, Canada.,Department of Occupational Science and Occupational Therapy, University of Toronto and Holland Bloorview Kids Rehabilitation Hospital, Toronto, Canada
| | - Karen D Davis
- Canadian Sports Concussion Project, Toronto Western Hospital, Toronto, Canada. .,Division of Brain, Imaging and Behaviour-Systems Neuroscience, Toronto Western Research Institute, Toronto Western Hospital, University Health Network, 399 Bathurst Street, Room MP14-306, Toronto, ON, M5T 2S8, Canada. .,Institute of Medical Science, University of Toronto, Toronto, Canada. .,Department of Surgery, University of Toronto, Toronto, Canada.
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Goswami R, Pi D, Pal J, Cheng K, Hudoba De Badyn M. Performance evaluation of a dynamic telepathology system (Panoptiq™) in the morphologic assessment of peripheral blood film abnormalities. Int J Lab Hematol 2014; 37:365-71. [PMID: 25227659 DOI: 10.1111/ijlh.12294] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 08/18/2014] [Indexed: 11/29/2022]
Abstract
INTRODUCTION The study evaluated the performance of a dynamic imaging telepathology system (Panoptiq(™) ) as a diagnostic aid to the identification of peripheral blood film (PBF) abnormalities. METHODS The study assumed a laboratory personnel working in a clinical laboratory were operating the telepathology system to seek diagnostic opinion from an external consulting hematopathologist. The study examined 100 blood films, encompassing 23 different hematological diseases, reactive or normal cases. RESULTS The study revealed that with real-time image transmission in live scanning mode of operation, the telepathology system was able to aid reviewers in achieving excellent accuracy, that is correct interpretation of morphologic abnormalities obtained in 83/84 of the hematologic diseases and 12/12 of the reactive/normal conditions (Sensitivity: 0.99; Specificity: 1.00). In contrast, when only saved static images in digital capture mode of operation were reviewed remotely, interpretative omissions occurred in 8/84 of the hematologic diseases and 0/12 of the reactive/normal conditions (Sensitivity: 0.91; Specificity: 1.00). It is hypothesized that real-time operator-reviewer communication during live scanning played an important role in the identification of key morphologic abnormalities for review. CONCLUSION Our study showed the Panoptiq system can be adopted reliably as a dynamic telepathology tool in aiding community laboratories in the triage of PBF cases for external diagnostic consultation.
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Affiliation(s)
- R Goswami
- Department of Pathology and Laboratory Medicine, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
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Karmakar A, Maitra S, Verma D, Chakraborti B, Goswami R, Ghosh P, Sinha S, Mohanakumar KP, Usha R, Mukhopadhyay K. Potential contribution of monoamine oxidase a gene variants in ADHD and behavioral co-morbidities: scenario in eastern Indian probands. Neurochem Res 2014; 39:843-52. [PMID: 24652311 DOI: 10.1007/s11064-014-1276-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 02/14/2014] [Accepted: 03/07/2014] [Indexed: 12/21/2022]
Abstract
Attention deficit hyperactivity disorder (ADHD) is the most frequently diagnosed behavioral disorder in children with a high frequency of co-morbid conditions like conduct disorder (CD) and oppositional defiant disorder (ODD). These traits are controlled by neurotransmitters like dopamine, serotonin and norepinephrine. Monoamine oxidase A (MAOA), a mitochondrial enzyme involved in the degradation of amines, has been reported to be associated with aggression, impulsivity, depression, and mood changes. We hypothesized that MAOA can have a potential role in ADHD associated CD/ODD and analyzed 24 markers in a group of Indo-Caucasoid subjects. ADHD probands and controls (N = 150 each) matched for ethnicity and gender were recruited following the Diagnostic and Statistical Manual for Mental Disorders-IV. Appropriate scales were used for measuring CD and ODD traits. Markers were genotyped by PCR-based methods and data obtained analyzed using the Cocaphase program under UNPHASED. Only eight markers were found to be polymorphic. rs6323 "G" allele showed higher frequencies in ADHD (P = 0.0023), ADHD + CD (P = 0.03) and ADHD + ODD (P = 0.01) as compared to controls. Haplotype analysis revealed statistically significant difference for three haplotypes in ADHD cases (P < 0.02). Statistically significant differences were also noticed for haplotypes in ADHD + CD and ADHD + ODD cases (P < 0.01). LD analysis showed significant variation in different groups. Multidimensionality reduction analysis showed independent as well as interactive effects of markers. Genotypes showed correlation with behavioral problems in ADHD and ADHD + CD. We interpret that MAOA gene variants may contribute to the etiology of ADHD as well as associated co-morbid CD and ODD in this ethnic group.
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Affiliation(s)
- A Karmakar
- Manovikas Biomedical Research and Diagnostic Centre, 482, Madudah, Plot I-24, Sec.-J, E.M. Bypass, Kolkata, 700107, India
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Fan Y, Smith KJ, Lüpke G, Hanbicki AT, Goswami R, Li CH, Zhao HB, Jonker BT. Exchange bias of the interface spin system at the Fe/MgO interface. Nat Nanotechnol 2013; 8:438-444. [PMID: 23728074 DOI: 10.1038/nnano.2013.94] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2011] [Accepted: 04/25/2013] [Indexed: 06/02/2023]
Abstract
The ferromagnet/oxide interface is key to developing emerging multiferroic and spintronic technologies with new functionality. Here we probe the Fe/MgO interface magnetization, and identify a new exchange bias phenomenon manifested only in the interface spin system, and not in the bulk. The interface magnetization exhibits a pronounced exchange bias, and the hysteresis loop is shifted entirely to one side of the zero field axis. However, the bulk magnetization does not, in marked contrast to typical systems where exchange bias is manifested in the net magnetization. This reveals the existence of an antiferromagnetic exchange pinning layer at the interface, identified here as FeO patches that exist even for a nominally 'clean' interface. These results demonstrate that atomic moments at the interface are non-collinear with the bulk magnetization, and therefore may affect the net anisotropy or serve as spin scattering sites. We control the exchange bias magnitude by varying the interface oxygen concentration and Fe-O bonding.
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Affiliation(s)
- Y Fan
- Department of Applied Science, College of William and Mary, 251 Jamestown Road, Williamsburg, Virginia 23187, USA
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Rathored J, Sharma SK, Singh B, Banavaliker JN, Sreenivas V, Srivastava AK, Mohan A, Sachan A, Harinarayan CV, Goswami R. Risk and outcome of multidrug-resistant tuberculosis: vitamin D receptor polymorphisms and serum 25(OH)D. Int J Tuberc Lung Dis 2012; 16:1522-8. [PMID: 22990231 DOI: 10.5588/ijtld.12.0122] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING All India Institute of Medical Sciences and Rajan Babu Institute of Pulmonary Medicine and Tuberculosis, New Delhi, India. OBJECTIVE To investigate the association of vitamin D receptor (VDR) polymorphisms and serum 25(OH)D with susceptibility to, and response to treatment of, multidrug-resistant tuberculosis (MDR-TB) in comparison with drug-susceptible pulmonary TB (DS-PTB) and healthy controls. DESIGN Cross-sectional study. METHODS A total of 897 participants from northern India were consecutively enrolled into three groups (MDR-TB 354, DS-PTB 338, controls 205). Genotypic and allelic frequencies of FokI, BsmI and TaqI VDR polymorphisms, and serum 25(OH)D, calcium and intact parathyroid hormone were measured in all participants. In those with active TB, disease severity, time to sputum smear and culture conversion were correlated with VDR genotype and biochemical parameters. RESULTS FokI Ff genotype and TaqI t allele correlated positively with MDR-TB; Ff genotype and f allele of FokI frequency were higher in both TB groups. BsmI Bb genotype correlated inversely with MDR-TB. Serum 25(OH)D concentrations were significantly lowest in MDR-TB, correlating inversely with time to sputum smear conversion. CONCLUSIONS VDR gene polymorphisms and hypovitaminosis D may predispose to MDR-TB. Lower serum 25(OH)D may increase time to MDR-TB sputum smear negativity.
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Affiliation(s)
- J Rathored
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
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Bhanot N, Haran M, Lodha A, Paul V, Goswami R, Chapnick EK. Physicians' attitudes towards self-treatment of latent tuberculosis. Int J Tuberc Lung Dis 2012; 16:169-71. [PMID: 22137678 DOI: 10.5588/ijtld.11.0232] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
We conducted a cross-sectional study to assess physicians' attitudes towards self-treatment of latent tuberculosis infection (LTBI) based on real-time responses related to actual purified protein derivative (PPD) results, in addition to using hypothetical situations for those who were PPD-negative. We also obtained information on physicians' recommendations for their patients to treat this condition. Although the physicians claimed to recommend optimal treatment to their patients, the majority of them had different attitudes when considering treatment for themselves. There appears to be a discrepancy between physicians' attitudes to self-treatment and their management of patients with LTBI.
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Affiliation(s)
- N Bhanot
- Department of Medicine, Allegheny General Hospital, Pittsburgh, Pennsylvania 15212, USA.
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Goswami R, Chakravartty S, Krishna J, Bose E, Das D, Chaudhury S, Mukherjee S, Saha P, Mukherjee U, Das P, Banerjee R. AC conductivity and dielectric analysis of graphite–clay nanocomposite. Can J Phys 2011; 89:1255-1260. [DOI: 10.1139/p11-127] [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] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
Affiliation(s)
- R. Goswami
- B.P. Poddar Institute of Management and Technology, 137, V.I.P. Road, Kolkata 700052, India
| | - S.C. Chakravartty
- B.P. Poddar Institute of Management and Technology, 137, V.I.P. Road, Kolkata 700052, India
| | - J.B.M. Krishna
- UGC-DAE CSR, Kolkata Center, Sector III/ LB – 8, Bidhan Nagar, Kolkata 700098, India
| | - E. Bose
- B.P. Poddar Institute of Management and Technology, 137, V.I.P. Road, Kolkata 700052, India
| | - D. Das
- UGC-DAE CSR, Kolkata Center, Sector III/ LB – 8, Bidhan Nagar, Kolkata 700098, India
| | - S.K. Chaudhury
- UGC-DAE CSR, Kolkata Center, Sector III/ LB – 8, Bidhan Nagar, Kolkata 700098, India
| | - S. Mukherjee
- B.P. Poddar Institute of Management and Technology, 137, V.I.P. Road, Kolkata 700052, India
| | - P. Saha
- B.P. Poddar Institute of Management and Technology, 137, V.I.P. Road, Kolkata 700052, India
| | - U. Mukherjee
- B.P. Poddar Institute of Management and Technology, 137, V.I.P. Road, Kolkata 700052, India
| | - P.K. Das
- Central Glass and Ceramic Research Institute, 196, Raja S.C. Mullick Road, Jadavpur Kolkata 700032, India
| | - R. Banerjee
- Central Glass and Ceramic Research Institute, 196, Raja S.C. Mullick Road, Jadavpur Kolkata 700032, India
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Frances MF, Goswami R, Rachinsky M, Craen R, Kiviniemi AM, Fleischhauer A, Steinback CD, Zamir M, Shoemaker JK. Adrenergic and myogenic regulation of viscoelasticity in the vascular bed of the human forearm. Exp Physiol 2011; 96:1129-37. [DOI: 10.1113/expphysiol.2011.059188] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Dokainish H, Nguyen JS, Bobek J, Goswami R, Lakkis NM. Assessment of the American Society of Echocardiography-European Association of Echocardiography guidelines for diastolic function in patients with depressed ejection fraction: an echocardiographic and invasive haemodynamic study. European Journal of Echocardiography 2011; 12:857-64. [DOI: 10.1093/ejechocard/jer157] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Goswami R, Deb P, Thakur R, Sarma KP, Basumallick A. Removal of As(III) from Aqueous Solution Using Functionalized Ultrafine Iron Oxide Nanoparticles. SEP SCI TECHNOL 2011. [DOI: 10.1080/01496395.2010.537728] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Zamir M, Goswami R, Liu L, Salmanpour A, Shoemaker JK. Myogenic activity in autoregulation during low frequency oscillations. Auton Neurosci 2010; 159:104-10. [PMID: 20829121 DOI: 10.1016/j.autneu.2010.07.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2010] [Revised: 07/07/2010] [Accepted: 07/29/2010] [Indexed: 11/28/2022]
Abstract
Lower body negative pressure (LBNP) was applied in eight human subjects to trigger low frequency oscillations in order to study the nature of functional coupling between the hemodynamic and autonomic nervous systems, with particular focus on how the myogenic response fits within this coupling. To this end muscle sympathetic nerve activity (MSNA), mean arterial pressure (MAP), heart rate (HR), cardiac output (CO), and total peripheral resistance (TPR) were measured at baseline and during LBNP and were then examined in both the time and frequency domains. At the height of low frequency oscillations (~0.1Hz) there was a strong coupling between all the five indices, marked by perfect alignment of their oscillatory frequencies. Results in the time domain show that a fall in MAP is followed by a fall in TPR at 1.58s SD 0.69), a rise in heart rate at 2.64s (SD 0.98), a rise in cardiac output at 3.72s (SD 0.60), a peak in MSNA at 5.71s (SD 1.27) and, finally, a rise in TPR at 7.13s (SD 1.02). A possible interpretation of the latter is that a drop in MAP first triggers a drop in TPR via a myogenic response before the expected rise in TPR via a rise in MSNA. In other words, following a drop in arterial pressure, myogenic response controls vessel diameter before this control is taken over by MSNA. These findings provide a possible resolution of a longstanding conceptual argument against attributing a significant role for the myogenic response in blood flow autoregulation.
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Affiliation(s)
- M Zamir
- Neurovascular Research Laboratory, School of Kinesiology, The University of Western Ontario, London, Ontario, Canada.
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Ghosh A, Bhagat M, Das M, Bala SK, Goswami R, Pal S. Prevalence of cardiovascular disease risk factors in people of Asian Indian origin: Age and sex variation. J Cardiovasc Dis Res 2010; 1:81-5. [PMID: 20877691 PMCID: PMC2945204 DOI: 10.4103/0975-3583.64441] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND No study has been undertaken on people of Asian Indian origin to investigate the age and sex variation in the prevalence of cardiovascular disease (CVD) risk factors. OBJECTIVES To investigate the age and sex variation in the prevalence of CVD risk factors among the people of Asian Indian origin. MATERIALS AND METHODS A total of 682 (302 males and 380 females) participants aged 25-85 years took part in the study. The subjects were categorized into 4 groups, namely, Group I (25-34 years), Group II (35-44 years), Group III (45-54 years), and Group IV (55 years and above). Height, weight, and the circumferences of minimum waist (MWC) and maximum hip were collected using standard techniques. Waist-hip ratio (WHR) was then calculated. Percentage of body fat (%BF) and body mass index (BMI) were measured using an Omron body fat analyzer. Left arm systolic (SBP) and diastolic (DBP) blood pressure were taken from each participant with the help of an Omron MI digital electronic blood/pulse monitor. Metabolic profiles, namely, total cholesterol (TC), triglyceride (TG), high (HDL), low (LDL), very low-density lipoprotein (VLDL), and fasting blood glucose (FBG) were also measured using an autoanalyzer. RESULTS One-way analysis of variance revealed significant differences for age, BMI, MWC, WHR, SBP, DBP, TC, TG, LDL, VLDL, and TC:HDL and TG:HDL ratios across the groups. It was observed that there were significant sex-specific group differences (male [χ(2) (12)] =29.22, P < 0.01 and female [χ(2) (12)] =56.69, P < 0.001) for obesity, high BP, high TC, high TG, and high FBG. But no significant group-specific sex difference was evident for either of the risk factors, except for Group IV. CONCLUSION Age irrespective of sex modulates CVD risk factors and warranted prevention as early as middle age.
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Affiliation(s)
- Arnab Ghosh
- Biomedical Research Laboratory, Department of Anthropology, Visva Bharati University, Santiniketan, West Bengal, India
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Banerjee S, Goswami R. GST profile expression study in some selected plants: in silico approach. Mol Cell Biochem 2010; 336:109-26. [PMID: 20135200 DOI: 10.1007/s11010-010-0384-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2009] [Accepted: 09/15/2009] [Indexed: 11/29/2022]
Abstract
Glutathione acts as a protein disulphide reductant, which detoxifies herbicides by conjugation, either spontaneously or by the activity of one of a number of glutathione-S-transferases (GSTs), and regulates gene expression in response to environmental stress and pathogen attack. GSTs play roles in both normal cellular metabolisms as well as in the detoxification of a wide variety of xenobiotic compounds, and they have been intensively studied with regard to herbicide detoxification in plants. A newly discovered plant GST subclass has been implicated in numerous stress responses, including those arising from pathogen attack, oxidative stress and heavy-metal toxicity. In addition, plants GSTs play a role in the cellular response to auxins and during the normal metabolism of plant secondary products like anthocyanins and cinnamic acid. The present work involves two in silico analytical approaches-general secondary structure prediction studies of the proteins and detailed signature pattern studies of some selected GST classes in Arabdiopsis thaliana, mustard, maize and bread wheat by standard Bioinformatics tools; structure prediction tools; signature pattern tools; and the evolutionary trends were analyzed by ClustalW. For this purpose, sequences were obtained from standard databases. The work reveals that these proteins are mainly alpha helical in nature with specific signature pattern similar to phosphokinase C, tyrosine kinase and casein kinase II proteins, which are closely related to plant oxidative stress. This study aims to comprehend the relationship of GST gene family and plant oxidative stress with respect to certain specific conserved motifs, which may help in future studies for screening of biomodulators involved in plant stress metabolism.
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Affiliation(s)
- Soma Banerjee
- Department of Biotechnology, Heritage Institute of Technology, Chowbaga Road, Anandapur. P.O. East Kolkata Township, Kolkata, 700107, India.
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Gupta A, Gupta N, Singh N, Goswami R. Presence of impaired intestinal calcium absorption in chronic hypovitaminosis D and its change after cholecalciferol supplementation: assessment by the calcium load test. J Hum Nutr Diet 2010; 23:54-60. [DOI: 10.1111/j.1365-277x.2009.01003.x] [Citation(s) in RCA: 4] [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: 11/30/2022]
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Pangty K, Singh S, Goswami R, Saikumar G, Somvanshi R. Detection of BPV-1 and -2 and Quantification of BPV-1 by Real-Time PCR in Cutaneous Warts in Cattle and Buffaloes. Transbound Emerg Dis 2010; 57:185-96. [DOI: 10.1111/j.1865-1682.2009.01096.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sengupta S, Mukherjee A, Goswami R, Basu S. Hypoglycemic activity of the antioxidant saponarin, characterized as α-glucosidase inhibitor present in Tinospora cordifolia. J Enzyme Inhib Med Chem 2009; 24:684-90. [DOI: 10.1080/14756360802333075] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [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] Open
Affiliation(s)
- Subhabrata Sengupta
- Department of Biotechnology, Heritage Institute Technology, New Chowbaga Road, Anandapur. P.O: East Calcutta TownshipCalcutta, 700107, India
| | - Abhishek Mukherjee
- Department of Biotechnology, Heritage Institute Technology, New Chowbaga Road, Anandapur. P.O: East Calcutta TownshipCalcutta, 700107, India
| | - Riddhi Goswami
- Department of Biotechnology, Heritage Institute Technology, New Chowbaga Road, Anandapur. P.O: East Calcutta TownshipCalcutta, 700107, India
| | - Srabanti Basu
- Department of Biotechnology, Heritage Institute Technology, New Chowbaga Road, Anandapur. P.O: East Calcutta TownshipCalcutta, 700107, India
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Goswami R, Kochupillai N, Gupta N, Goswami D, Singh N, Dudha A. Presence of 25(OH) D deficiency in a rural North Indian village despite abundant sunshine. J Assoc Physicians India 2008; 56:755-757. [PMID: 19263699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
BACKGROUND AND OBJECTIVE Several studies have shown wide prevalence of vitamin D deficiency with serum 25(OH)D <49.9 nmol/L in urban Indians related to their poor sunshine exposure and skin pigmentation. However, there is limited information in rural Indians. We hypothesized presence of higher 25(OH)D in rural subjects as compared to urban because of farming related abundant sunshine exposure. DESIGN AND METHODS We assessed serum 25(OH)D levels in residents of a North Indian village with 200 families, located 90 km East of Delhi during February (winter). Fifty seven subjects (32 males and 25 females) from 50 families consented for the study. RESULTS The mean 25(OH)D values of all subjects in the rural area was 36.4 +/- 22.5 nmol/l/L. Males had significantly higher 25(OH)D values than females. When compared to urban subjects, the mean 25(OH)D value of rural males and females was six and three folds higher, respectively. However even with five hours of daily sunshine exposure only 31.5% had serum 25(OH)D levels > or = 50 nmol/L. CONCLUSIONS Thus, with longer sunshine exposure subjects residing in rural area had better mean 25(OH)D values than that of urbans. However, 70% of them were still vitamin D deficient. These facts indicate the need for the countrywide vitamin D food fortification program irrespective of rural or urban setting.
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Affiliation(s)
- R Goswami
- Department of Endocrinology, Maulana Azad Medical College, New Delhi
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Goswami R, Singh D, Phillips G, Kilkus J, Dawson G. Membrane lipid regulation of the tumor suppressor phosphatase PTEN. J Neurochem 2008. [DOI: 10.1046/j.1471-4159.81.s1.38_4.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Goswami R, Mishra SK, Kochupillai N. Prevalence & potential significance of vitamin D deficiency in Asian Indians. Indian J Med Res 2008; 127:229-238. [PMID: 18497436] [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] Open
Abstract
Studies from our center and other parts of India have drawn attention towards wide prevalence of vitamin D deficiency (VDD) in our country. VDD has been reported in all age groups including toddlers, school children, pregnant women and their neonates and adult males and females residing in rural and urban India. We reviewed implications of VDD in our population based on the preliminary data available from Indian studies on skeletal health. Besides, a brief review is made on the importance of VDD in various other disorders prevalent in equivalent proportions among Indians such as type 2 diabetes mellitus (DM), cardiovascular diseases (CVD), immune competence including relation to tuberculosis, malignancy and osteoarthritis. Data from the West have also associated VDD with increased prevalence of type 2DM, CVD, autoimmune disorders, tuberculosis, prostate, breast and colon malignancy and osteoarthritis. Such association has not been studied to date in our country. Overall results of various studies conducted to date in urban and rural Indians indicate that widely prevalent VDD is functionally relevant to skeletal health including osteomalacia and rickets. However, there is a need to explore its association with osteoporosis related fractures and various other non skeletal disorders linked with VDD.
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Affiliation(s)
- R Goswami
- Department of Endocrinology & Metabolism, All India Institute of Medical Sciences New Delhi, India.
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Edwards CJ, Syddall H, Jameson K, Williams EL, Polosa R, Goswami R, Dennison EM, Arden NK, Cooper C. The presence of anticardiolipin antibodies in adults may be influenced by infections in infancy. QJM 2008; 101:41-7. [PMID: 18203724 DOI: 10.1093/qjmed/hcm119] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES There has been limited success defining environmental factors important in the development of antiphospholipid (Hughes) syndrome (APS). Recent work suggests that the perinatal environment may be important in the development of other autoimmune diseases. We measured anticardiolipin antibodies (aCL) in a general population with well-defined early lives to see whether fetal and infant growth and infections were associated with aCL positivity in adult life. METHODS aCLs were measured using an ELISA in 1384 individuals from the Hertfordshire cohort study. We investigated associations between the presence of aCL and early growth and infectious exposure in infancy in men and women. RESULTS ELISA positive aCL (IgM and IgG) was present in 22 (3%) men and 15 (2%) women. Using the highest octile of aCL results, in men higher birth weight (per lb of birth weight: OR 1.18, 95% CI 1.02-1.36, P = 0.02) and diarrhoeal infection in the first year of life (OR 2.55, 95% CI 1.10, 5.92, P = 0.03) were associated with an increased likelihood of being aCL positive. In women, diarrhoeal infection in the first year of life was also associated with an increased likelihood of aCL positivity (OR 2.23, 95% CI 1.01, 4.91, P = 0.05). For IgG titre in men, significant relationships were found with sharing a bedroom (regression coefficient 1.13; 95% CI 1.05, 1.22; P = 0.02) and diarrhoea in the first year (coefficient 1.25; 95% CI 1.00, 1.56; P = 0.05). CONCLUSION A developing immune system when exposed to the infectious environment may influence the likelihood of producing aCL in adult life.
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Affiliation(s)
- C J Edwards
- Department of Rheumatology, Southampton General Hospital, Tremona Road, Southampton, UK.
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