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Malik S, Inamdar S, Acharya J, Goel P, Ghaskadbi S. Characterization of palmitic acid toxicity induced insulin resistance in HepG2 cells. Toxicol In Vitro 2024; 97:105802. [PMID: 38431059 DOI: 10.1016/j.tiv.2024.105802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 02/11/2024] [Accepted: 02/26/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND An etiology of palmitic acid (PA) induced insulin resistance (IR) is complex for which two mechanisms are proposed namely ROS induced JNK activation and lipid induced protein kinase-C (PKCε) activation. However, whether these mechanisms act alone or in consortium is not clear. METHODS AND RESULTS In this study, we have characterized PA induced IR in liver cells. These cells were treated with different concentrations of PA for either 8 or 16 h. Insulin responsiveness of cells treated with PA for 8 h was found to be same as that of control. However, cells treated with PA for 16 h, showed increased glucose output both in the presence and in absence of insulin only at higher concentrations, indicating development of IR. In these, both JNK and PKCε were activated in response to increased ROS and lipid accumulation, respectively. Activated JNK and PKCε phosphorylated IRS1 at Ser-307 resulting in inhibition of AKT which in turn inactivated GSK3β, leading to reduced glycogen synthase activity. Inhibition of AKT also reduced insulin suppression of hepatic gluconeogenesis by activating Forkhead box protein O1 (FOXO1) and increased expression of the gluconeogenic enzymes and their transcription factors. CONCLUSION Thus, our data clearly demonstrate that both these mechanisms work simultaneously and more importantly, identified a threshold of HepG2 cells, which when crossed led to the pathological state of IR in response to PA.
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Affiliation(s)
- Sajad Malik
- Department of Zoology, Savitribai Phule Pune University, Ganeshkhind, Pune 411007, India
| | - Shrirang Inamdar
- Department of Zoology, Savitribai Phule Pune University, Ganeshkhind, Pune 411007, India
| | - Jhankar Acharya
- Department of Zoology, Savitribai Phule Pune University, Ganeshkhind, Pune 411007, India
| | - Pranay Goel
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
| | - Saroj Ghaskadbi
- Department of Zoology, Savitribai Phule Pune University, Ganeshkhind, Pune 411007, India.
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Oza C, Antani M, Mondkar S, Bhor S, Kajale N, Kajale S, Goel P, Khadilkar V, Khadilkar A. Adaptation and validation of an artificial intelligence based digital radiogrammetry tool for assessing bone health of indian children and youth with type-1 diabetes. Endocrine 2024; 84:119-127. [PMID: 38123878 PMCID: PMC10987335 DOI: 10.1007/s12020-023-03630-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 11/22/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND AND OBJECTIVES BoneXpert (BX) is an artificial intelligence software used primarily for bone age assessment. Besides, it can also be used to screen for bone health using the digital radiogrammetry tool called bone health index (BHI) for which normative reference values available are calculated from healthy European children. Due to ethnic difference in bone geometry, in a previous study, we generated reference curves based on healthy Indian children. The objectives of this study were: 1) To assess and compare bone health of Indian children with Type 1 diabetes (T1D) using both European and Indian BHI SDS reference data and 2) To identify determinants of poor bone health in Indian children and youth with T1D by using BHI tool (based on BHI-SDS Indian reference data) of BX. METHOD The BHI was assessed retrospectively in 1159 subjects with T1D using digitalised left-hand x-rays and SDS were computed using European and Indian data. The demographic, anthropometric, clinical, biochemistry, dual x-ray absorptiometry (DXA) data and peripheral quantitative computed tomography (pQCT) data collection were performed using standard protocols and were extracted from hospital records. RESULTS The BHI correlated well with DXA and pQCT parameters in subjects with T1D. BHI-SDS calculated using Indian reference data had better correlation with height and DXA parameters. 8.6% study participants had low (less than -2) BHI-SDS (Indian), with height SDS having significant effect. Subjects with low BHI-SDS were older, shorter and had higher duration of diabetes. They also had lower IGF1 and vitamin D concentrations, bone mineral density, and trabecular density. Female gender, increased duration of illness, poor glycaemic control, and vitamin D deficiency/insufficiency were significant predictors of poor BHI-SDS. CONCLUSION Our study highlights the utility of digital radiogrammetry AI tool to screen for bone health of children with T1D and demonstrates and highlights the necessity of interpretation using ethnicity specific normative data.
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Affiliation(s)
- Chirantap Oza
- Department of Paediatric growth and Endocrinology, Hirabai Cowasji Jehangir Medical Research Institute, Jehangir Hospital, Pune, India
- Consultant Paediatric Endocrinologist, Endogrow pediatric and adolescent endocrine centre, Ahmedabad, India
- Visiting consultant pediatric endocrinologist, Department of pediatrics, Narendra Modi Medical college, Ahmedabad, India
| | - Misha Antani
- Department of pathology, B.J. Medical college, Ahmedabad, India
| | - Shruti Mondkar
- Department of Paediatric growth and Endocrinology, Hirabai Cowasji Jehangir Medical Research Institute, Jehangir Hospital, Pune, India
| | - Shital Bhor
- Department of Paediatric growth and Endocrinology, Hirabai Cowasji Jehangir Medical Research Institute, Jehangir Hospital, Pune, India
| | - Neha Kajale
- Department of Paediatric growth and Endocrinology, Hirabai Cowasji Jehangir Medical Research Institute, Jehangir Hospital, Pune, India
- Interdisciplinary School of Health Sciences, Savitribai Phule University, Pune, India
| | - Shilpa Kajale
- Consultant Radiologist, Department of radiology, Jehangir Hospital, Pune, India
| | - Pranay Goel
- Department of Biology, Indian Institute of Science Education and Research Pune, Pune, India
| | - Vaman Khadilkar
- Department of Paediatric growth and Endocrinology, Hirabai Cowasji Jehangir Medical Research Institute, Jehangir Hospital, Pune, India
- Interdisciplinary School of Health Sciences, Savitribai Phule University, Pune, India
- Senior Consultant, Jehangir Hospital, Pune, India
| | - Anuradha Khadilkar
- Department of Paediatric growth and Endocrinology, Hirabai Cowasji Jehangir Medical Research Institute, Jehangir Hospital, Pune, India.
- Interdisciplinary School of Health Sciences, Savitribai Phule University, Pune, India.
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Chapke R, Mondkar S, Oza C, Khadilkar V, Aeppli TRJ, Sävendahl L, Kajale N, Ladkat D, Khadilkar A, Goel P. The automated Greulich and Pyle: a coming-of-age for segmental methods? Front Artif Intell 2024; 7:1326488. [PMID: 38533467 PMCID: PMC10963464 DOI: 10.3389/frai.2024.1326488] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 02/14/2024] [Indexed: 03/28/2024] Open
Abstract
The well-known Greulich and Pyle (GP) method of bone age assessment (BAA) relies on comparing a hand X-ray against templates of discrete maturity classes collected in an atlas. Automated methods have recently shown great success with BAA, especially using deep learning. In this perspective, we first review the success and limitations of various automated BAA methods. We then offer a novel hypothesis: When networks predict bone age that is not aligned with a GP reference class, it is not simply statistical error (although there is that as well); they are picking up nuances in the hand X-ray that lie "outside that class." In other words, trained networks predict distributions around classes. This raises a natural question: How can we further understand the reasons for a prediction to deviate from the nominal class age? We claim that segmental aging, that is, ratings based on characteristic bone groups can be used to qualify predictions. This so-called segmental GP method has excellent properties: It can not only help identify differential maturity in the hand but also provide a systematic way to extend the use of the current GP atlas to various other populations.
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Affiliation(s)
- Rashmi Chapke
- Department of Biology, Indian Institute of Science Education and Research Pune, Pune, India
| | - Shruti Mondkar
- Hirabai Cowasji Jehangir Medical Research Institute, Pune, India
| | - Chirantap Oza
- Hirabai Cowasji Jehangir Medical Research Institute, Pune, India
| | - Vaman Khadilkar
- Hirabai Cowasji Jehangir Medical Research Institute, Pune, India
- Department of Health Sciences, Savitribai Phule Pune University, Pune, India
- Jehangir Hospital, Pune, India
| | - Tim R. J. Aeppli
- Division of Pediatric Endocrinology, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Lars Sävendahl
- Division of Pediatric Endocrinology, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Neha Kajale
- Hirabai Cowasji Jehangir Medical Research Institute, Pune, India
- Department of Health Sciences, Savitribai Phule Pune University, Pune, India
| | - Dipali Ladkat
- Hirabai Cowasji Jehangir Medical Research Institute, Pune, India
| | - Anuradha Khadilkar
- Hirabai Cowasji Jehangir Medical Research Institute, Pune, India
- Department of Health Sciences, Savitribai Phule Pune University, Pune, India
| | - Pranay Goel
- Department of Biology, Indian Institute of Science Education and Research Pune, Pune, India
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Oza C, Antani M, Mondkar SA, Kajale N, Ojha V, Goel P, Khadilkar V, Khadilkar AV. BoneXpert-derived bone health index reference curves constructed on healthy Indian children and adolescents. Pediatr Radiol 2024; 54:127-135. [PMID: 38099931 DOI: 10.1007/s00247-023-05824-1] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/19/2023] [Accepted: 11/21/2023] [Indexed: 01/10/2024]
Abstract
BACKGROUND Artificial intelligence (AI)-based applications for the assessment of the paediatric musculoskeletal system like BoneXpert are not only useful to assess bone age (BA) but also to provide a bone health index (BHI) and a standard deviation score (SDS) for both. This allows comparison of the BHI with age- and sex-matched healthy Caucasian children. OBJECTIVE We conducted this study with the objective of generating BHI curves using BoneXpert in healthy Indian children with BA between 2 and 17 years. METHOD We retrospectively reviewed anthropometric parameters, BHI, and BHI SDS data of digitalized left-hand radiographs (joint photographic experts group [jpg] format) of a cohort of 788 paediatric patients from a previous study to which they were recruited to compare various methods of BA assessment. The recruited children represented all age groups for both sexes. The corrected BHI for jpg images was calculated using the formula corrected BHI=BHI*(stature/(avL*50))^0.33333 where stature is height of subject and avL is average length of metacarpal bones. The reference Indian BHI curves and centiles were generated using the Lambda-Mu-Sigma method. RESULT The mean BHI and BHI SDS of the study group were 4.02±0.57 and -1.73±1.09, respectively. The average increase in median BHI from each age group was between 2.5% and 3% in both sexes up to age of 14 years after which it increased to 4.5% to 5%. The mean BHI of Indian children was lower than that of Caucasian children with maximum differences noted in boys at 16 years (21.7%) and girls at 14 years (16%). We report 8.4% SD of BHI for our study sample. Reference percentile curves for BHI according to BA were derived separately for boys and girls. CONCLUSION Reference data has been provided for the screening of bone health status of Indian children and adolescents.
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Affiliation(s)
- Chirantap Oza
- Department of Paediatric Growth and Endocrinology, Hirabai Cowasji Jehangir Medical Research Institute, Old Building Basement, Jehangir Hospital, 32, Sassoon Road, Pune, Maharashtra, 411001, India
- Endogrow Paediatric and Adolescent Endocrine Centre, Ahmedabad, India
- Department of Paediatrics, Narendra Modi Medical College, Ahmedabad, India
| | - Misha Antani
- Department of Pathology, B. J. Medical College, Ahmedabad, India
| | - Shruti A Mondkar
- Department of Paediatric Growth and Endocrinology, Hirabai Cowasji Jehangir Medical Research Institute, Old Building Basement, Jehangir Hospital, 32, Sassoon Road, Pune, Maharashtra, 411001, India
| | - Neha Kajale
- Department of Paediatric Growth and Endocrinology, Hirabai Cowasji Jehangir Medical Research Institute, Old Building Basement, Jehangir Hospital, 32, Sassoon Road, Pune, Maharashtra, 411001, India
- Interdisciplinary School of Health Sciences, Savitribai Phule University, Pune, India
| | - Vikas Ojha
- Department of Radiology, Jehangir Hospital, Pune, India
| | - Pranay Goel
- Department of Biology, Indian Institute of Science Education and Research, Pune, India
| | - Vaman Khadilkar
- Department of Paediatric Growth and Endocrinology, Hirabai Cowasji Jehangir Medical Research Institute, Old Building Basement, Jehangir Hospital, 32, Sassoon Road, Pune, Maharashtra, 411001, India
- Interdisciplinary School of Health Sciences, Savitribai Phule University, Pune, India
- Jehangir Hospital, Pune, India
| | - Anuradha V Khadilkar
- Department of Paediatric Growth and Endocrinology, Hirabai Cowasji Jehangir Medical Research Institute, Old Building Basement, Jehangir Hospital, 32, Sassoon Road, Pune, Maharashtra, 411001, India.
- Interdisciplinary School of Health Sciences, Savitribai Phule University, Pune, India.
- Jehangir Hospital, Pune, India.
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Phatak S, Mahadevkar P, Chaudhari KS, Chakladar S, Jain S, Dhadge S, Jadhav S, Shah R, Bhalerao A, Patil A, Ingram JL, Goel P, Yajnik CS. Corrigendum: Quantification of joint mobility limitation in adult type 1 diabetes. Front Endocrinol (Lausanne) 2023; 14:1339588. [PMID: 38155956 PMCID: PMC10754043 DOI: 10.3389/fendo.2023.1339588] [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: 11/16/2023] [Accepted: 11/27/2023] [Indexed: 12/30/2023] Open
Abstract
[This corrects the article DOI: 10.3389/fendo.2023.1238825.].
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Affiliation(s)
- Sanat Phatak
- Diabetes Unit, King Edward Memorial (KEM) Hospital Research Centre, Pune, India
| | - Pranav Mahadevkar
- Department of Musculoskeletal Radiology, Star Imaging and Research Centre, Pune, India
| | | | - Shreya Chakladar
- Department of Biology, Indian Institute of Science Education and Research, Pune, India
| | - Swasti Jain
- Diabetes Unit, King Edward Memorial (KEM) Hospital Research Centre, Pune, India
| | - Smita Dhadge
- Diabetes Unit, King Edward Memorial (KEM) Hospital Research Centre, Pune, India
| | - Sarita Jadhav
- Diabetes Unit, King Edward Memorial (KEM) Hospital Research Centre, Pune, India
| | - Rohan Shah
- Diabetes Unit, King Edward Memorial (KEM) Hospital Research Centre, Pune, India
| | - Aboli Bhalerao
- Diabetes Unit, King Edward Memorial (KEM) Hospital Research Centre, Pune, India
| | - Anupama Patil
- Department of Musculoskeletal Radiology, Star Imaging and Research Centre, Pune, India
| | - Jennifer L. Ingram
- Division of Pulmonary, Allergy and Critical Care, Department of Medicine, Duke University Medical Center, Durham, NC, United States
| | - Pranay Goel
- Department of Biology, Indian Institute of Science Education and Research, Pune, India
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Majumdar S, Kalamkar SD, Dudhgaonkar S, Shelgikar KM, Ghaskadbi S, Goel P. Evaluation of HbA1c from CGM traces in an Indian population. Front Endocrinol (Lausanne) 2023; 14:1264072. [PMID: 38053728 PMCID: PMC10694347 DOI: 10.3389/fendo.2023.1264072] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 10/17/2023] [Indexed: 12/07/2023] Open
Abstract
Introduction The development of continuous glucose monitoring (CGM) over the last decade has provided access to many consecutive glucose concentration measurements from patients. A standard method for estimating glycated hemoglobin (HbA1c), already established in the literature, is based on its relationship with the average blood glucose concentration (aBG). We showed that the estimates obtained using the standard method were not sufficiently reliable for an Indian population and suggested two new methods for estimating HbA1c. Methods Two datasets providing a total of 128 CGM and their corresponding HbA1c levels were received from two centers: Health Centre, Savitribai Phule Pune University, Pune and Joshi Hospital, Pune, from patients already diagnosed with diabetes, non-diabetes, and pre-diabetes. We filtered 112 data-sufficient CGM traces, of which 80 traces were used to construct two models using linear regression. The first model estimates HbA1c directly from the average interstitial fluid glucose concentration (aISF) of the CGM trace and the second model proceeds in two steps: first, aISF is scaled to aBG, and then aBG is converted to HbA1c via the Nathan model. Our models were tested on the remaining 32 data- sufficient traces. We also provided 95% confidence and prediction intervals for HbA1c estimates. Results The direct model (first model) for estimating HbA1c was HbA1cmmol/mol = 0.319 × aISFmg/dL + 16.73 and the adapted Nathan model (second model) for estimating HbA1c is HbA1cmmol/dL = 0.38 × (1.17 × ISFmg/dL) - 5.60. Discussion Our results show that the new equations are likely to provide better estimates of HbA1c levels than the standard model at the population level, which is especially suited for clinical epidemiology in Indian populations.
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Affiliation(s)
- Sayantan Majumdar
- Department of Biology, Indian Institute of Science Education and Research Pune, Pune, Maharashtra, India
| | - Saurabh D. Kalamkar
- Department of Zoology, Savitribai Phule Pune University, Pune, Maharashtra, India
| | | | | | - Saroj Ghaskadbi
- Department of Zoology, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Pranay Goel
- Department of Biology, Indian Institute of Science Education and Research Pune, Pune, Maharashtra, India
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Phatak S, Chakraborty S, Goel P. Computer vision detects inflammatory arthritis in standardized smartphone photographs in an Indian patient cohort. Front Med (Lausanne) 2023; 10:1280462. [PMID: 38020147 PMCID: PMC10666644 DOI: 10.3389/fmed.2023.1280462] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 10/12/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction Computer vision extracts meaning from pixelated images and holds promise in automating various clinical tasks. Convolutional neural networks (CNNs), a deep learning network used therein, have shown promise in analyzing X-ray images and joint photographs. We studied the performance of a CNN on standardized smartphone photographs in detecting inflammation in three hand joints and compared it to a rheumatologist's diagnosis. Methods We enrolled 100 consecutive patients with inflammatory arthritis with an onset period of less than 2 years, excluding those with deformities. Each patient was examined by a rheumatologist, and the presence of synovitis in each joint was recorded. Hand photographs were taken in a standardized manner, anonymized, and cropped to include joints of interest. A ResNet-101 backbone modified for two class outputs (inflamed or not) was used for training. We also tested a hue-augmented dataset. We reported accuracy, sensitivity, and specificity for three joints: wrist, index finger proximal interphalangeal (IFPIP), and middle finger proximal interphalangeal (MFPIP), taking the rheumatologist's opinion as the gold standard. Results The cohort consisted of 100 individuals, of which 22 of them were men, with a mean age of 49.7 (SD 12.9) years. The majority of the cohort (n = 68, 68%) had rheumatoid arthritis. The wrist (125/200, 62.5%), MFPIP (94/200, 47%), and IFPIP (83/200, 41.5%) were the three most commonly inflamed joints. The CNN achieved the highest accuracy, sensitivity, and specificity in detecting synovitis in the MFPIP (83, 77, and 88%, respectively), followed by the IFPIP (74, 74, and 75%, respectively) and the wrist (62, 90, and 21%, respectively). Discussion We have demonstrated that computer vision was able to detect inflammation in three joints of the hand with reasonable accuracy on standardized photographs despite a small dataset. Feature engineering was not required, and the CNN worked despite a diversity in clinical diagnosis. Larger datasets are likely to improve accuracy and help explain the basis of classification. These data suggest a potential use of computer vision in screening and follow-up of inflammatory arthritis.
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Affiliation(s)
| | | | - Pranay Goel
- Indian Institute of Science, Education and Research, Pune, India
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Phatak S, Mahadevkar P, Chaudhari KS, Chakladar S, Jain S, Dhadge S, Jadhav S, Shah R, Bhalerao A, Patil A, Ingram JL, Goel P, Yajnik CS. Quantification of joint mobility limitation in adult type 1 diabetes. Front Endocrinol (Lausanne) 2023; 14:1238825. [PMID: 38027132 PMCID: PMC10657982 DOI: 10.3389/fendo.2023.1238825] [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] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 10/17/2023] [Indexed: 12/01/2023] Open
Abstract
Aims Diabetic cheiroarthropathies limit hand mobility due to fibrosis and could be markers of a global profibrotic trajectory. Heterogeneity in definitions and lack of a method to measure it complicate studying associations with organ involvement and treatment outcomes. We measured metacarpophalangeal (MCP) joint extension as a metric and describe magnetic resonance (MR) imaging determinants of MCP restriction. Methods Adults with type 1 diabetes were screened for hand manifestations using a symptom questionnaire, clinical examination, and function [Duruoz hand index (DHI) and grip strength]. Patients were segregated by mean MCP extension (<20°, 20°-40°, 40°-60°, and >60°) for MR imaging (MRI) scanning. Patients in the four groups were compared using ANOVA for clinical features and MRI tissue measurements (tenosynovial, skin, and fascia thickness). We performed multiple linear regression for determinants of MCP extension. Results Of the 237 patients (90 men), 79 (33.8%) with cheiroarthropathy had MCP extension limitation (39° versus 61°, p < 0.01). Groups with limited MCP extension had higher DHI (1.9 vs. 0.2) but few (7%) had pain. Height, systolic blood pressure, and nephropathy were associated with mean MCP extension. Hand MRI (n = 61) showed flexor tenosynovitis in four patients and median neuritis in one patient. Groups with MCP mobility restriction had the thickest palmar skin; tendon thickness or median nerve area did not differ. Only mean palmar skin thickness was associated with MCP extension angle on multiple linear regression. Conclusion Joint mobility limitation was quantified by restricted mean MCP extension and had structural correlates on MRI. These can serve as quantitative measures for future associative and interventional studies.
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Affiliation(s)
- Sanat Phatak
- Diabetes Unit, King Edward Memorial (KEM) Hospital Research Centre, Pune, India
| | - Pranav Mahadevkar
- Department of Musculoskeletal Radiology, Star Imaging and Research Centre, Pune, India
| | | | - Shreya Chakladar
- Department of Biology, Indian Institute of Science Education and Research, Pune, India
| | - Swasti Jain
- Diabetes Unit, King Edward Memorial (KEM) Hospital Research Centre, Pune, India
| | - Smita Dhadge
- Diabetes Unit, King Edward Memorial (KEM) Hospital Research Centre, Pune, India
| | - Sarita Jadhav
- Diabetes Unit, King Edward Memorial (KEM) Hospital Research Centre, Pune, India
| | - Rohan Shah
- Diabetes Unit, King Edward Memorial (KEM) Hospital Research Centre, Pune, India
| | - Aboli Bhalerao
- Diabetes Unit, King Edward Memorial (KEM) Hospital Research Centre, Pune, India
| | - Anupama Patil
- Department of Musculoskeletal Radiology, Star Imaging and Research Centre, Pune, India
| | - Jennifer L. Ingram
- Division of Pulmonary, Allergy and Critical Care, Department of Medicine, Duke University Medical Center, Durham, NC, United States
| | - Pranay Goel
- Department of Biology, Indian Institute of Science Education and Research, Pune, India
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Phatak S, Ingram JL, Goel P, Rath S, Yajnik C. Does hand stiffness reflect internal organ fibrosis in diabetes mellitus? Front Clin Diabetes Healthc 2023; 4:1198782. [PMID: 37492439 PMCID: PMC10363986 DOI: 10.3389/fcdhc.2023.1198782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 06/13/2023] [Indexed: 07/27/2023]
Abstract
Fibrosis leads to irreversible stiffening of tissue and loss of function, and is a common pathway leading to morbidity and mortality in chronic disease. Diabetes mellitus (both type 1 and type 2 diabetes) are associated with significant fibrosis in internal organs, chiefly the kidney and heart, but also lung, liver and adipose tissue. Diabetes is also associated with the diabetic cheirarthropathies, a collection of clinical manifestations affecting the hand that include limited joint mobility (LJM), flexor tenosynovitis, Duypuytren disease and carpal tunnel syndrome. Histo-morphologically these are profibrotic conditions affecting various soft tissue components in the hand. We hypothesize that these hand manifestations reflect a systemic profibrotic state, and are potential clinical biomarkers of current or future internal organ fibrosis. Epidemiologically, there is evidence that fibrosis in one organ associates with fibrosis with another; the putative exposures that lead to fibrosis in diabetes (advanced glycation end product deposition, microvascular disease and hypoxia, persistent innate inflammation) are 'systemic'; a common genetic susceptibility to fibrosis has also been hinted at. These data suggest that a subset of the diabetic population is susceptible to multi-organ fibrosis. The hand is an attractive biomarker to clinically detect this susceptibility, owing to its accessibility to physical examination and exposure to repeated mechanical stresses. Testing the hypothesis has a few pre-requisites: being able to measure hand fibrosis in the hand, using clinical scores or imaging based scores, which will facilitate looking for associations with internal organ fibrosis using validated methodologies for each. Longitudinal studies would be essential in delineating fibrosis trajectories in those with hand manifestations. Since therapies reversing fibrosis are few, the onus lies on identification of a susceptible subset for preventative measures. If systematically validated, clinical hand examination could provide a low-cost, universally accessible and easily reproducible screening step in selecting patients for clinical trials for fibrosis in diabetes.
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Affiliation(s)
- Sanat Phatak
- Diabetes Unit, King Edward Memorial (KEM) Hospital Research Centre, Pune, India
| | - Jennifer L. Ingram
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Duke University Medical Center, Durham, NC, United States
| | - Pranay Goel
- Department of Biology, Indian Institute of Science Education and Research, Pune, India
| | - Satyajit Rath
- Department of Biology, Indian Institute of Science Education and Research, Pune, India
| | - Chittaranjan Yajnik
- Diabetes Unit, King Edward Memorial (KEM) Hospital Research Centre, Pune, India
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Madathil AK, Ghaskadbi S, Kalamkar S, Goel P. Pune GSH supplementation study: Analyzing longitudinal changes in type 2 diabetic patients using linear mixed-effects models. Front Pharmacol 2023; 14:1139673. [PMID: 36992833 PMCID: PMC10040593 DOI: 10.3389/fphar.2023.1139673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 02/27/2023] [Indexed: 03/15/2023] Open
Abstract
Oral GSH supplementation along with antidiabetic treatment was shown to restore the body stores of GSH significantly and reduce oxidative DNA damage (8-OHdG) in Indian Type 2 diabetic (T2D) patients over 6 months in our recent clinical study. Post hoc analysis of the data also suggested that elder patients benefit from improved HbA1c and fasting insulin. We modeled longitudinal changes in diabetic individuals using a linear mixed-effects (LME) framework and obtained i) the distribution of individual trajectories with and without GSH supplementation and ii) the overall rates of changes in the different study arms. Serial changes in elder and younger diabetic individuals were also modeled independently to examine differences in their progression. The average linear trajectories obtained from the model explain how biochemical parameters in T2D patients progress over 6 months on GSH supplementation. Model estimates show improvements in erythrocytic GSH of 108 µM per month and a reduction in 8-OHdG at a rate of 18.5 ng/μg DNA per month in T2D patients. GSH replenishes faster in younger people than in the elder. 8-OHdG reduced more rapidly in the elder (24 ng/μg DNA per month) than in younger (12 ng/μg DNA per month) individuals. Interestingly, elder individuals show a substantial reduction in HbA1c (0.1% per month) and increased fasting insulin (0.6 µU/mL per month). Changes in GSH correlate strongly with changes in HbA1c, 8-OHdG, and fasting insulin in the elder cohort. The model estimates strongly suggest it improves the rate of replenishment in erythrocytic GSH stores and reduces oxidative DNA damage. Elder and younger T2D patients respond differently to GSH supplementation: It improves the rate of reduction in HbA1c and increases fasting insulin in elder patients. These model forecasts have clinical implications that aid in personalizing treatment targets for using oral GSH as adjuvant therapy in diabetes.
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Affiliation(s)
- Arjun Kolappurath Madathil
- Biology Division, Indian Institute of Science Education and Research, Pune, India
- *Correspondence: Arjun Kolappurath Madathil,
| | - Saroj Ghaskadbi
- Department of Zoology, Savitribai Phule Pune University, Pune, India
| | - Saurabh Kalamkar
- Department of Zoology, Savitribai Phule Pune University, Pune, India
| | - Pranay Goel
- Biology Division, Indian Institute of Science Education and Research, Pune, India
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Gaike AH, Kalamkar SD, Gajjar V, Divate U, Karandikar-Iyer S, Goel P, Shouche YS, Ghaskadbi SS. Effect of long-term oral glutathione supplementation on gut microbiome of type 2 diabetic individuals. FEMS Microbiol Lett 2023; 370:fnad116. [PMID: 37935462 DOI: 10.1093/femsle/fnad116] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 10/23/2023] [Accepted: 11/02/2023] [Indexed: 11/09/2023] Open
Abstract
The aim of this study was to check the effect of long-term oral glutathione (GSH) supplementation on alteration in gut microbiome of Indian diabetic individuals. Early morning fresh stool sample of diabetic individuals recruited in a randomized clinical trial wherein they were given 500 mg GSH supplementation orally once a day for a period of 6 months was collected and gut microbiome was analysed using high throughput 16S rRNA metagenomic sequencing. Long-term GSH supplementation as reported in our earlier work showed significant increase in body stores of GSH and stabilized decreased glycated haemoglobin (HbA1c). Analysis of gut microbiome revealed that abundance of phylum Proteobacteria significantly decreased (P < 0.05) in individuals with GSH supplementation after 6 months compared to those without it. Beneficial dominant genera such as Megasphaera, Bacteroides, and Megamonas were found to be significantly enriched (P < 0.05), while pathogenic Escherichia/Shigella was found to be depleted (P < 0.05) after supplementation. Data clearly demonstrate that GSH supplementation along with antidiabetic treatment helps restore the gut microbiome by enriching beneficial bacteria of healthy gut and reducing significantly the load of pathogenic bacteria of diabetic gut.
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Affiliation(s)
- Akshay H Gaike
- Department of Zoology, Savitribai Phule Pune University, Pune 411007, India
- National Centre for Cell Science, Pune 411007, India
| | - Saurabh D Kalamkar
- Department of Zoology, Savitribai Phule Pune University, Pune 411007, India
| | | | | | | | - Pranay Goel
- Biology Division, Indian Institute of Science Education and Research, Pune 411008, India
| | - Yogesh S Shouche
- National Centre for Cell Science, Pune 411007, India
- SKAN Research Trust, Bengaluru 560034, India
| | - Saroj S Ghaskadbi
- Department of Zoology, Savitribai Phule Pune University, Pune 411007, India
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Areekal SA, Goel P, Khadilkar A, Khadilkar V, Cole TJ. Assessment of height growth in Indian children using growth centiles and growth curves. Ann Hum Biol 2022; 49:228-235. [PMID: 36112429 DOI: 10.1080/03014460.2022.2107238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND Growth centiles and growth curves are two ways to present child anthropometry; however, they differ in the type of data used, the method of analysis, the biological parameters fitted and the form of interpretation. AIM To fit and compare height growth centiles and curves in Indian children. SUBJECTS AND METHODS 1468 children (796 boys) from Pune India aged 6-18 years with longitudinal data on age and height (n = 7781) were analysed using GAMLSS (Generalised Additive Models for Location Scale and Shape) for growth centiles, and SITAR (SuperImposition by Rotation and Translation) for growth curves. RESULTS SITAR explained 98.7% and 98.8% of the height variance in boys and girls, with mean age at peak height velocity 13.1 and 11.0 years, and mean peak velocity 9.0 and 8.0 cm/year, respectively. GAMLSS (Box-Cox Cole Green model) also captured the pubertal growth spurt but the centiles were shallower than the SITAR mean curve. Boys showed a mid-growth spurt at age 8 years. CONCLUSION GAMLSS displays the distribution of height in the population by age and sex, while SITAR effectively and parsimoniously summarises the pattern of height growth in individual children. The two approaches provide distinct, useful information about child growth.
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Affiliation(s)
| | - Pranay Goel
- Department of Biology, Indian Institute of Science Education and Research, Pune, India
| | | | - Vaman Khadilkar
- Hirabai Cowasji Jehangir Medical Research Institute, Pune, India
| | - Tim J Cole
- Population, Policy and Practice Department, University College London Great Ormond Street Institute of Child Health, London, UK
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Kalamkar S, Acharya J, Kolappurath Madathil A, Gajjar V, Divate U, Karandikar-Iyer S, Goel P, Ghaskadbi S. Randomized Clinical Trial of How Long-Term Glutathione Supplementation Offers Protection from Oxidative Damage and Improves HbA1c in Elderly Type 2 Diabetic Patients. Antioxidants (Basel) 2022; 11:antiox11051026. [PMID: 35624890 PMCID: PMC9137531 DOI: 10.3390/antiox11051026] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [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: 04/21/2022] [Accepted: 05/20/2022] [Indexed: 02/06/2023] Open
Abstract
Complications in type 2 diabetes (T2D) arise from hyperglycemia-induced oxidative stress. Here, we examined the effectiveness of supplementation with the endogenous antioxidant glutathione (GSH) during anti-diabetic treatment. A total of 104 non-diabetic and 250 diabetic individuals on anti-diabetic therapy, of either sex and aged between 30 and 78 years, were recruited. A total of 125 diabetic patients were additionally given 500 mg oral GSH supplementation daily for a period of six months. Fasting and PP glucose, insulin, HbA1c, GSH, oxidized glutathione (GSSG), and 8-hydroxy-2-deoxy guanosine (8-OHdG) were measured upon recruitment and after three and six months of supplementation. Statistical significance and effect size were assessed longitudinally across all arms. Blood GSH increased (Cohen’s d = 1.01) and 8-OHdG decreased (Cohen’s d = −1.07) significantly within three months (p < 0.001) in diabetic individuals. A post hoc sub-group analysis showed that HbA1c (Cohen’s d = −0.41; p < 0.05) and fasting insulin levels (Cohen’s d = 0.56; p < 0.05) changed significantly in diabetic individuals above 55 years. GSH supplementation caused a significant increase in blood GSH and helped maintain the baseline HbA1c overall. These results suggest GSH supplementation is of considerable benefit to patients above 55 years, not only supporting decreased glycated hemoglobin (HbA1c) and 8-OHdG but also increasing fasting insulin. The clinical implication of our study is that the oral administration of GSH potentially complements anti-diabetic therapy in achieving better glycemic targets, especially in the elderly population.
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Affiliation(s)
- Saurabh Kalamkar
- Department of Zoology, Savitribai Phule Pune University, Pune 411007, India; (S.K.); (J.A.)
| | - Jhankar Acharya
- Department of Zoology, Savitribai Phule Pune University, Pune 411007, India; (S.K.); (J.A.)
| | | | - Vijay Gajjar
- Department of Medicine, Jehangir Hospital, Pune 411001, India;
| | - Uma Divate
- Jehangir Clinical Development Centre, Pune 411001, India;
| | | | - Pranay Goel
- Biology Division, Indian Institute of Science Education and Research, Pune 411008, India;
- Correspondence: (P.G.); (S.G.); Tel.: +91-202-569-0617 (S.G.)
| | - Saroj Ghaskadbi
- Department of Zoology, Savitribai Phule Pune University, Pune 411007, India; (S.K.); (J.A.)
- Correspondence: (P.G.); (S.G.); Tel.: +91-202-569-0617 (S.G.)
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Agrud A, Subburaju S, Goel P, Ren J, Kumar AS, Caldarone BJ, Dai W, Chavez J, Fukumura D, Jain RK, Kloner RA, Vasudevan A. Gabrb3 endothelial cell-specific knockout mice display abnormal blood flow, hypertension, and behavioral dysfunction. Sci Rep 2022; 12:4922. [PMID: 35318369 PMCID: PMC8941104 DOI: 10.1038/s41598-022-08806-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 11/02/2021] [Accepted: 03/04/2022] [Indexed: 11/17/2022] Open
Abstract
Our recent studies uncovered a novel GABA signaling pathway in embryonic forebrain endothelial cells that works independently from neuronal GABA signaling and revealed that disruptions in endothelial GABAA receptor-GABA signaling from early embryonic stages can directly contribute to the origin of psychiatric disorders. In the GABAA receptor β3 subunit endothelial cell conditional knockout (Gabrb3ECKO) mice, the β3 subunit is deleted selectively from endothelial cells, therefore endothelial GABAA receptors become inactivated and dysfunctional. There is a reduction in vessel densities and increased vessel morphology in the Gabrb3ECKO telencephalon that persists in the adult neocortex. Gabrb3ECKO mice show behavioral deficits such as impaired reciprocal social interactions, communication deficits, heightened anxiety, and depression. Here, we characterize the functional changes in Gabrb3ECKO mice by evaluating cortical blood flow, examine the consequences of loss of endothelial Gabrb3 on cardiac tissue, and define more in-depth altered behaviors. Red blood cell velocity and blood flow were increased in the cortical microcirculation of the Gabrb3ECKO mice. The Gabrb3ECKO mice had a reduction in vessel densities in the heart, similar to the brain; exhibited wavy, myocardial fibers, with elongated 'worm-like' nuclei in their cardiac histology, and developed hypertension. Additional alterations in behavioral function were observed in the Gabrb3ECKO mice such as increased spontaneous exploratory activity and rearing in an open field, reduced short term memory, decreased ambulatory activity in CLAMS testing, and altered prepulse inhibition to startle, an important biomarker of psychiatric diseases such as schizophrenia. Our results imply that vascular Gabrb3 is a key player in the brain as well as the heart, and its loss in both organs can lead to concurrent development of psychiatric and cardiac dysfunction.
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Affiliation(s)
- Anass Agrud
- grid.280933.30000 0004 0452 8371Angiogenesis and Brain Development Laboratory, Huntington Medical Research Institutes (HMRI), 686 S Fair Oaks Avenue, Pasadena, CA 91105 USA
| | - Sivan Subburaju
- grid.280933.30000 0004 0452 8371Angiogenesis and Brain Development Laboratory, Huntington Medical Research Institutes (HMRI), 686 S Fair Oaks Avenue, Pasadena, CA 91105 USA ,grid.38142.3c000000041936754XDepartment of Psychiatry, Harvard Medical School, Boston, MA 02215 USA ,grid.240206.20000 0000 8795 072XDivision of Basic Neuroscience, McLean Hospital, 115 Mill Street, Belmont, MA 02478 USA
| | - Pranay Goel
- grid.280933.30000 0004 0452 8371Angiogenesis and Brain Development Laboratory, Huntington Medical Research Institutes (HMRI), 686 S Fair Oaks Avenue, Pasadena, CA 91105 USA
| | - Jun Ren
- grid.32224.350000 0004 0386 9924Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114 USA
| | - Ashwin Srinivasan Kumar
- grid.32224.350000 0004 0386 9924Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114 USA ,grid.116068.80000 0001 2341 2786Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
| | - Barbara J. Caldarone
- grid.38142.3c000000041936754XMouse Behavior Core, Department of Genetics, Harvard Medical School, Boston, MA USA
| | - Wangde Dai
- grid.280933.30000 0004 0452 8371Huntington Medical Research Institutes, Pasadena, CA USA ,grid.42505.360000 0001 2156 6853Division of Cardiovascular Medicine, Department of Medicine, Keck School of Medicine at University of Southern California, Los Angeles, CA USA
| | - Jesus Chavez
- grid.280933.30000 0004 0452 8371Huntington Medical Research Institutes, Pasadena, CA USA ,grid.42505.360000 0001 2156 6853Division of Cardiovascular Medicine, Department of Medicine, Keck School of Medicine at University of Southern California, Los Angeles, CA USA
| | - Dai Fukumura
- grid.32224.350000 0004 0386 9924Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114 USA
| | - Rakesh K. Jain
- grid.32224.350000 0004 0386 9924Edwin L. Steele Laboratories, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114 USA
| | - Robert A. Kloner
- grid.280933.30000 0004 0452 8371Huntington Medical Research Institutes, Pasadena, CA USA ,grid.42505.360000 0001 2156 6853Division of Cardiovascular Medicine, Department of Medicine, Keck School of Medicine at University of Southern California, Los Angeles, CA USA
| | - Anju Vasudevan
- Angiogenesis and Brain Development Laboratory, Huntington Medical Research Institutes (HMRI), 686 S Fair Oaks Avenue, Pasadena, CA, 91105, USA.
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15
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Phatak S, Chakraborty S, Wagh A, Goel P. Personalized medicine in India: Mirage or a viable goal? Indian J Rheumatol 2022. [DOI: 10.4103/injr.injr_152_21] [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
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16
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Chan EF, Cockman MD, Goel P, Newman PS, Hipp JA. Characterization of the mid-coronal plane method for measurement of radiographic change in knee joint space width across different levels of image parallax. Osteoarthritis Cartilage 2021; 29:1306-1313. [PMID: 34171474 DOI: 10.1016/j.joca.2021.06.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 05/13/2021] [Accepted: 06/13/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Radiographic measurement of the change in knee joint space width (ΔJSW) is often affected by image parallax, which causes an apparent exaggeration of JSW due to projectional differences. This issue with parallax (quantified by intermargin distance) can in part be addressed with a novel mid-coronal plane (MCP) measurement method. The objectives of the study were to determine 1) accuracy and 2) reproducibility of the MCP method, and 3) compare the MCP method to that used in the Osteoarthritis Initiative (OAI) for different categories of parallax. METHODS Posteroanterior radiographs (n = 70) with known JSW were digitally reconstructed from CT images of cadaver knees and used to determine the accuracy of ΔJSW using the MCP method for parallax categories of None, Mild/Moderate, and Severe. Reproducibility was determined from pairs of clinical radiographs selected from the OAI (n = 170). The MCP method was also compared to the OAI methodology. Both reproducibility and agreement were characterized by Bland-Altman analysis and intraclass correlation coefficients (ICC). RESULTS The MCP method was accurate to 0.11 mm in cases with no parallax, and 0.18 mm across all categories of parallax for medial and lateral compartments. Reproducibility of the MCP method was graded "excellent" (ICC 0.98, 95% CI [0.98, 0.99]). The MCP results agreed very well with the OAI (ICC 0.92, 95% CI [0.89, 0.94]), with mean absolute differences between methods increasing with increasing parallax. CONCLUSION The MCP method is an accurate, reproducible alternative to the OAI method for multi-center clinical trials where subject and X-ray beam positioning may be variable.
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Affiliation(s)
- E F Chan
- Medical Metrics, Inc., 2121 Sage Road, Suite 300, Houston, TX, 77056, USA.
| | - M D Cockman
- Medical Metrics, Inc., 2121 Sage Road, Suite 300, Houston, TX, 77056, USA.
| | - P Goel
- Medical Metrics, Inc., 2121 Sage Road, Suite 300, Houston, TX, 77056, USA.
| | - P S Newman
- Medical Metrics, Inc., 2121 Sage Road, Suite 300, Houston, TX, 77056, USA.
| | - J A Hipp
- Medical Metrics, Inc., 2121 Sage Road, Suite 300, Houston, TX, 77056, USA.
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Goel P, Singh M, Borle A, Garg S. Health preparedness plan to prevent dengue epidemic in an urban area of Delhi. Int J Infect Dis 2020. [DOI: 10.1016/j.ijid.2020.09.711] [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: 10/22/2022] Open
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Khandelwal S, Goel P, Chaudhary D, Sancheti S, Goel A, Dora T, Sharma R. 30P Male breast cancer: A rural based peripheral cancer center experience. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.050] [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: 10/22/2022] Open
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Shyam S, Goel P, Kumar D, Malpotra S, Singh MK, Lathwal SS, Chand S, Palta P. Effect of Dickkopf-1 and colony stimulating factor-2 on the developmental competence, quality, gene expression and live birth rate of buffalo (Bubalus bubalis) embryos produced by hand-made cloning. Theriogenology 2020; 157:254-262. [PMID: 32823021 DOI: 10.1016/j.theriogenology.2020.07.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/07/2020] [Accepted: 07/25/2020] [Indexed: 01/23/2023]
Abstract
A functional canonical WNT signaling pathway exists in preimplantation embryos and inhibits embryonic development. Recent studies suggest that this pathway is over-expressed in nuclear transferred (NT), compared to IVF embryos. The present study investigated the effects of Dickkopf-1 (DKK1), an inhibitor of canonical WNT signaling pathway and colony stimulating factor-2 (CSF2), an embryokine, on the developmental competence, quality, gene expression and live birth rate of NT buffalo embryos produced by Hand-made cloning (HMC). Following supplementation of the in vitro culture medium on day 5 with DKK1 (100 ng/mL), CSF2 (10 ng/mL), DKK1+CSF2 or no supplementation (control), the blastocyst rate was higher (P < 0.05) with DKK1 and DKK1+CSF2 (42.6 ± 1.4% and 46.6 ± 0.9%, respectively) than with CSF2 or controls (40.6 ± 1.3% and 39.0 ± 1.3%, respectively). The apoptotic index of the blastocysts was lower (P < 0.05) for DKK1, CSF2 and DKK1+CSF2 groups (3.44 ± 0.14, 3.39 ± 0.11 and 3.11 ± 0.22, respectively) compared to controls (6.64 ± 0.25), and was similar to that of the IVF blastocysts (3.67 ± 0.18). Although the total cell number was similar for the DKK1, CSF2, DKK1+CSF2 and control groups (200.4 ± 3.05, 196.4 ± 3.73, 204.7 ± 3.71 and 205 ± 4.03, respectively), the inner cell mass:trophectoderm cell number ratio of DKK1, CSF2 and DKK1+CSF2 groups (0.21 ± 0.01, 0.17 ± 0.01 and 0.22 ± 0.02, respectively) was higher (P < 0.05) than controls (0.13 ± 0.01) and was similar to that of IVF blastocysts (0.19 ± 0.01). Treatment with DKK1 or CSF2 or both increased (P < 0.05) the expression level of OCT4, NANOG,SOX2, GATA6, BCL2, PTEN, P53, FGF4, GLUT1 and IFN-τ, and decreased that of C-MYC, CDX2, CASPASE, DNMT3a, TCF7 and LEF1 in blastocysts, compared to controls. Transfer of DKK1-treated embryos to 13 recipients resulted in 4 pregnancies (30.8%; 2 live births, one abortion and one currently at 9 months of pregnancy) whereas, transfer of DKK1+CSF2-treated embryos to 16 recipients, resulted in 4 pregnancies (25.0%), all of which resulted in live births. No pregnancy was obtained after transfer of control and CSF-treated embryos to 12 and 16 recipients, respectively. These results suggest that DKK1 treatment of NT embryos increases the blastocyst, conception and live birth rate, and improves their quality whereas, CSF2 treatment, does not affect the blastocyst, conception and live birth rate despite improvement in embryo quality.
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Affiliation(s)
- S Shyam
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - P Goel
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - D Kumar
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - S Malpotra
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - M K Singh
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - S S Lathwal
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - S Chand
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - P Palta
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India.
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Kaushik A, Kapoor A, Dabadghao P, Khanna R, Kumar S, Garg N, Tewari S, Goel P. P1496Use of strain, strain rate, tissue velocity imaging and endothelial function for early detection of cardiovascular involvement in young diabetics. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0260] [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
Subtle structural and functional changes may precede the onset of overt global left ventricular dysfunction and obvious reduction of ejection fraction (EF), especially in young diabetics. Data pertaining to tissue velocity indices (TVI) and strain imaging to assess regional myocardial function and flow mediated vasodilatation is limited in young patients with diabetes.
Purpose
To evaluate conventional echocardiography parameters, tissue doppler indices, global and regional strain, carotid intimal medial thickness (CIMT), endothelial dependent (FMD) and independent function (NMD) of brachial artery in young patients (age <18 years) with type 1 diabetes and compare them with matched controls.
Methods
Conventional echocardiography parameters, tissue velocity indices (TVI) parameters along with strain (S), and strain rate (SR) in basal and mid left ventricular (LV) lateral wall, right ventricular (RV) lateral wall and septum were measured in 50 young diabetics (age 15.16±2.95 years, mean HBA1c 8.15±1.37 gm %) and 25 controls (age 15.60±2.51 years). Flow-mediated dilatation (FMD), nitrate mediated dilatation and carotid intimal media thickness (CIMT) were also estimated.
Results
Conventional echocardiography parameters were similar in patients and controls however deceleration time of the mitral inflow velocity (EDT) was significantly shorter in patients when compared with controls (149.06±31.66 vs. 184.56±19.27 ms, p<0.05). Lateral early diastolic myocardial velocity (LV-Em) was significantly lower (10.30±0.99 vs. 11.67±3.21, p<0.05) whereas lateral late diastolic myocardial velocity (LV-Am) was significantly higher than controls (11.73±1.44 vs. 8.82±1.69, p<0.05), thus a significantly lower ratio of early/late diastolic velocity at the basal segment of lateral LV (LV-Em/Am). Lower strain values at the basal lateral LV (21.39±4.12 vs. 23.78±2.02; p<0.05), mid lateral LV (21.43±4.27 vs. 23.17±1.92; p<0.05), basal septum (20.59±5.28 vs. 22.91±2.00; p<0.05), and mid septum (22.06±4.75 vs. 24.10±1.99; p<0.05) as compared to controls. SR at the basal and mid segments of the lateral LV wall and at the basal septum were also significantly lower in diabetic subjects. Strain rate (SR) in mid septal, basal and mid RV were lower than controls although not statistically significant. Patients also had significantly lower flow mediated dilatation (FMD) (8.36±4.27 vs. 10.57±4.12, p<0.05) implying endothelial dysfunction.
Strain rate in diabetic patient
Conclusion
Left ventricular strain indices are impaired in asymptomatic children and adolescents with type 1 DM despite absence of overt heart failure and normal ejection fraction. Early detection of subclinical regional myocardial dysfunction by deformation analysis including strain and strain rate may be useful in the asymptomatic diabetic population. In addition, evidence of endothelial dysfunction in the form of impaired flow mediated vasodilatation was observed in the diabetic children.
Acknowledgement/Funding
None
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Affiliation(s)
- A Kaushik
- Sanjay gandhi post graduate institute of Medical sciences, Lucknow, India
| | - A Kapoor
- Sanjay gandhi post graduate institute of Medical sciences, Lucknow, India
| | - P Dabadghao
- Sanjay gandhi post graduate institute of Medical sciences, Lucknow, India
| | - R Khanna
- Sanjay gandhi post graduate institute of Medical sciences, Lucknow, India
| | - S Kumar
- Sanjay gandhi post graduate institute of Medical sciences, Lucknow, India
| | - N Garg
- Sanjay gandhi post graduate institute of Medical sciences, Lucknow, India
| | - S Tewari
- Sanjay gandhi post graduate institute of Medical sciences, Lucknow, India
| | - P Goel
- Sanjay gandhi post graduate institute of Medical sciences, Lucknow, India
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Kasbekar P, Goel P, Aravind S, Shukla H, Pandya S. The margin ratio hypothesis in cancer of buccal mucosa. Eur J Surg Oncol 2019. [DOI: 10.1016/j.ejso.2018.10.429] [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] Open
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Goel P. Artificial intelligence in medicine: The way forward. Med J DY Patil Vidyapeeth 2019. [DOI: 10.4103/mjdrdypu.mjdrdypu_55_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
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Fahradyan A, Tsuha M, Wolfswinkel E, Mitchel K, Howell L, Hammoudeh J, Urata M, Magee W, Goel P. The Optimal Timing of Secondary Alveolar Bone Grafting: A Literature Review. J Oral Maxillofac Surg 2018. [DOI: 10.1016/j.joms.2018.06.099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Kaushik A, Kapoor A, Agarwal SK, Pandey S, Kumar S, Khanna R, Garg N, Tewari S, Goel P. P3607Can high-dose statin therapy given before off-pump CABG “recapture” cardioprotection in patients already on chronic statin therapy: Assessment by serial cardiac biomarker assay. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3607] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- A Kaushik
- Sanjay Gandhi Post Graduate Institute of Medical Sciences (SGPGIMS), Lucknow, India
| | - A Kapoor
- Sanjay Gandhi Post Graduate Institute of Medical Sciences (SGPGIMS), Lucknow, India
| | - S K Agarwal
- Sanjay Gandhi Post Graduate Institute of Medical Sciences (SGPGIMS), Lucknow, India
| | - S Pandey
- Sanjay Gandhi Post Graduate Institute of Medical Sciences (SGPGIMS), Lucknow, India
| | - S Kumar
- Sanjay Gandhi Post Graduate Institute of Medical Sciences (SGPGIMS), Lucknow, India
| | - R Khanna
- Sanjay Gandhi Post Graduate Institute of Medical Sciences (SGPGIMS), Lucknow, India
| | - N Garg
- Sanjay Gandhi Post Graduate Institute of Medical Sciences (SGPGIMS), Lucknow, India
| | - S Tewari
- Sanjay Gandhi Post Graduate Institute of Medical Sciences (SGPGIMS), Lucknow, India
| | - P Goel
- Sanjay Gandhi Post Graduate Institute of Medical Sciences (SGPGIMS), Lucknow, India
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Goel P, Parkhi D, Barua A, Shah M, Ghaskadbi S. A Minimal Model Approach for Analyzing Continuous Glucose Monitoring in Type 2 Diabetes. Front Physiol 2018; 9:673. [PMID: 29915545 PMCID: PMC5994993 DOI: 10.3389/fphys.2018.00673] [Citation(s) in RCA: 7] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 05/15/2018] [Indexed: 01/10/2023] Open
Abstract
Continuous glucose monitoring (CGM), a technique that records blood glucose at a regular intervals. While CGM is more commonly used in type 1 diabetes, it is increasingly becoming attractive for treating type 2 diabetic patients. The time series obtained from a CGM provides a rich picture of the glycemic state of the subjects and may help have tighter control on blood sugar by revealing patterns in their physiological responses to food. However, despite its importance, the biophysical understanding of CGM is far from complete. CGM data series is complex not only because it depends on the composition of the food but also varies with individual physiology. All of these make a full modeling of CGM data a difficult task. Here we propose a simple model to explain CGM data in type 2 diabetes. The model combines a relatively simple glucose-insulin dynamics with a two-compartment food model. Using CGM data of a healthy and a diabetic individual we show that this model can capture liquid meals well. The model also allows us to estimate the parameters in a relatively straightforward manner. This opens up the possibility of personalizing the CGM data. The model also predicts insulin time series from the model, and the rate of appearance of glucose due to food. Our methodology thus paves the way for novel analyses of CGM which have not been possible before.
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Affiliation(s)
- Pranay Goel
- Department of Biology, Indian Institute of Science Education and Research, Pune, India
| | - Durga Parkhi
- Indian Institute of Science Education and Research, Pune, India
| | - Amlan Barua
- Department of Mathematics, Indian Institute of Technology, Dharwad, India
| | | | - Saroj Ghaskadbi
- Department of Zoology, Savitribai Phule Pune University, Pune, India
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Henshall TL, Manning JA, Alfassy OS, Goel P, Boase NA, Kawabe H, Kumar S. Deletion of Nedd4-2 results in progressive kidney disease in mice. Cell Death Differ 2017; 24:2150-2160. [PMID: 28862701 PMCID: PMC5686353 DOI: 10.1038/cdd.2017.137] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [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: 06/07/2017] [Revised: 07/05/2017] [Accepted: 07/19/2017] [Indexed: 12/30/2022] Open
Abstract
NEDD4-2 (NEDD4L), a ubiquitin protein ligase of the Nedd4 family, is a key regulator of cell surface expression and activity of the amiloride-sensitive epithelial Na+ channel (ENaC). While hypomorphic alleles of Nedd4-2 in mice show salt-sensitive hypertension, complete knockout results in pulmonary distress and perinatal lethality due to increased cell surface levels of ENaC. We now show that Nedd4-2 deficiency in mice also results in an unexpected progressive kidney injury phenotype associated with elevated ENaC and Na+Cl− cotransporter expression, increased Na+ reabsorption, hypertension and markedly reduced levels of aldosterone. The observed nephropathy is characterized by fibrosis, tubule epithelial cell apoptosis, dilated/cystic tubules, elevated expression of kidney injury markers and immune cell infiltration, characteristics reminiscent of human chronic kidney disease. Importantly, we demonstrate that the extent of kidney injury can be partially therapeutically ameliorated in mice with nephron-specific deletions of Nedd4-2 by blocking ENaC with amiloride. These results suggest that increased Na+ reabsorption via ENaC causes kidney injury and establish a novel role of NEDD4-2 in preventing Na+-induced nephropathy. Contrary to some recent reports, our data also indicate that ENaC is the primary in vivo target of NEDD4-2 and that Nedd4-2 deletion is associated with hypertension on a normal Na+ diet. These findings provide further insight into the critical function of NEDD4-2 in renal pathophysiology.
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Affiliation(s)
- Tanya L Henshall
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA 5000, Australia
| | - Jantina A Manning
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA 5000, Australia
| | - Omri S Alfassy
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA 5000, Australia
| | - Pranay Goel
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA 5000, Australia.,School of Medicine, University of Adelaide, Adelaide, SA 5005, Australia
| | - Natasha A Boase
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA 5000, Australia
| | - Hiroshi Kawabe
- Max Planck Institute of Experimental Medicine, Department of Molecular Neurobiology, Göttingen 37075, Germany
| | - Sharad Kumar
- Centre for Cancer Biology, University of South Australia and SA Pathology, Adelaide, SA 5000, Australia.,School of Medicine, University of Adelaide, Adelaide, SA 5005, Australia
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Costa R, Seth A, Chandra P, Bhal V, Nanjappa M, Rath P, Kalaricka M, Wander G, Mahajan A, Kumaran A, Koshy A, Goel P, Kumar V, Kaul U, Trehan V. 1968Quantitative angiographic analysis in patients with de novo native coronary artery lesions treated with novel poly-l-lactide based sirolimus-eluting bioresorbable vascular scaffold: MeRes-1 Trial. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.1968] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
AIM The aim of this study is to create an evidence-based tool that guides the risk of amputation in diabetic foot patients. MATERIALS AND METHODS Hospital records of 301 diabetic foot patients were examined retrospectively for explanatory variables of foot amputation decisions. The study included all patients with a lower limb ulcer with a known history of diabetes mellitus or those diagnosed post-admission. The dataset was analyzed, and a risk scoring system was constructed using the decision tree algorithm, C5.0. Two classifiers, one simple and another complex, were constructed for predicting amputation outcome. RESULTS AND DISCUSSION Based on our evaluation, the most influential predictors for a decision to amputate are Doppler flow measurements and the Wagner grading of the ulceration. The simple classifier uses just these two parameters in determining risk. The results obtained show an accuracy of 96.4% in the primary group and an accuracy of 94% in the test group. The second classifier is a more complex computer-derived construct that showed 100% accuracy in the principle group and an accuracy of 96% during testing. CONCLUSION In the present era of precision medicine, these two classifiers act as an accurate guide to the prognosis of the limb in patients with diabetic foot and can predict the risk of future amputation.
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Affiliation(s)
- Prasad Umesh Kasbekar
- Department of General Surgery, B.J. Government Medical College, Pune, India
- *Correspondence: Prasad Umesh Kasbekar,
| | - Pranay Goel
- Indian Institute of Science Education and Research, Pune, India
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Bhagat N, Whitelock J, Goel P, Barcia P, Hashemi E, Anderson P, Ambarus T. An Atypical Presentation of the Most Common Uterine Anomaly: The Septate Uterus. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Gupta K, Mitra S, Kazal S, Saroa R, Ahuja V, Goel P. I.V. paracetamol as an adjunct to patient-controlled epidural analgesia with levobupivacaine and fentanyl in labour: a randomized controlled study. Br J Anaesth 2016; 117:617-622. [DOI: 10.1093/bja/aew311] [Citation(s) in RCA: 8] [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: 08/30/2023] Open
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Gupta V, Garg R, Huria A, Goel P, Chander J, Cruz SD. Effect of genitourinary flora on occurrence of recurrent urinary tract infection in females. Indian J Med Microbiol 2016; 34:112-3. [PMID: 26776136 DOI: 10.4103/0255-0857.167673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- V Gupta
- Department of Microbiology, Government Medical College Hospital, Chandigarh, India
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Tewari S, Agarwal P, Goel P. PS055 To Evaluate the Role of Non Hdl-C, Lp(a), Apo-B as a Clinical Surrogate Marker for Coronary Artery Disease. Glob Heart 2016. [DOI: 10.1016/j.gheart.2016.03.085] [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: 10/21/2022] Open
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Tewari S, Sahoo D, Goel P. PS217 To Correlate Carotid Artery Intima-Media Thickness and Plaque Score With the Syntax Score for Assessing the Complexity of Coronary Artery Disease. Glob Heart 2016. [DOI: 10.1016/j.gheart.2016.03.174] [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: 11/28/2022] Open
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Kumar S, Singhal A, Kapoor A, Khanna R, Garg N, Tewari S, Goel P. PM281 Continued Improvement of RV Function After 3 Months of Balloon Mitral Valvotomy: A Comprehensive Echocardiography Study. Glob Heart 2016. [DOI: 10.1016/j.gheart.2016.03.408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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35
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Karamshetty V, Acharya JD, Ghaskadbi S, Goel P. Mathematical Modeling of Glutathione Status in Type 2 Diabetics with Vitamin B12 Deficiency. Front Cell Dev Biol 2016; 4:16. [PMID: 27047940 PMCID: PMC4803754 DOI: 10.3389/fcell.2016.00016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Accepted: 02/22/2016] [Indexed: 01/11/2023] Open
Abstract
Deficiencies in vitamin B12 and glutathione (GSH) are associated with a number of diseases including type 2 diabetes mellitus. We tested newly diagnosed Indian diabetic patients for correlation between their vitamin B12 and GSH, and found it to be weak. Here we seek to examine the theoretical dependence of GSH on vitamin B12 with a mathematical model of 1-carbon metabolism due to Reed and co-workers. We study the methionine cycle of the Reed-Nijhout model by developing a simple "stylized model" that captures its essential topology and whose kinetics are analytically tractable. The analysis shows-somewhat counter-intuitively-that the flux responsible for the homeostasis of homocysteine is, in fact, peripheral to the methionine cycle. Elevation of homocysteine arises from reduced activity of methionine synthase, a vitamin B12-dependent enzyme, however, this does not increase GSH biosynthesis. The model suggests that the lack of vitamin B12-GSH correlation is explained by suppression of activity in the trans-sulfuration pathway that limits the synthesis of cysteine and GSH from homocysteine. We hypothesize this "cysteine-block" is an essential consequence of vitamin B12 deficiency. It can be clinically relevant to appreciate that these secondary effects of vitamin B12 deficiency could be central to its pathophysiology.
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Affiliation(s)
- Varun Karamshetty
- Department of Mathematics, Indian Institute of Science Education and Research Pune, India
| | | | | | - Pranay Goel
- Department of Biology, Indian Institute of Science Education and Research Pune, India
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Krestjyaninov M, Gimaev R, Razin V, Halaph H, Shameeva O, Galli E, Oger E, Levery M, Mabo P, Donal E, Rodriguez Munoz D, Carbonell Sanroman A, Moya Mur J, Lazaro Rivera C, Fernandez Santos S, Rincon Diaz L, Casas Rojo E, Jimenez Nacher J, Fernandez-Golfin C, Zamorano Gomez J, Shamsheva D, Zaletova T, Parkhomenko O, Bogdanov A, Simova I, Katova T, Galderisi M, Pauncheva B, Ozawa K, Funabashi N, Takaoka H, Kobayashi Y, Moatemri F, Messaoudi Y, Mahdhaoui A, Bouraoui H, Hajri S, Jeridi G, Souza C, Nascimento C, Cordovil I, Belem L, Horcades R, Sahate A, Pereira S, Benchimol-Barbosa P, Barros C, Weitzel L, Altin C, Sade L, Gezmis E, Ozen N, Muderrisoglu H, Voilliot D, Magne J, Dulgheru R, Kou S, Henri C, Caballero L, De Sousa C, Sprynger M, Pierard L, Lancellotti P, Miglioranza M, Mihaila S, Muraru D, Cucchini U, Cecchetto A, Cavalli G, Romeo G, Iliceto S, Badano L, Brecht A, Wageloehner T, Oertelt-Prigione S, Seeland U, Ruecke M, Baumann G, Regitz-Zagrosek V, Stangl V, Knebel F, Khanna R, Raghuwanshi A, Kapoor A, Tewari S, Garg N, Kumar S, Goel P, Altin C, Sade L, Gezmis E, Ozen N, Duzceker O, Muderrisoglu H, Petre I, Tautu O, Onciul S, Iancovici S, Zamfir D, Onut R, Dorobantu M, Jashari F, Ibrahimi P, Johansson E, Gronlund C, Bajraktari G, Wester P, Henein M, Torbas O, Sirenko Y, Radchenko G, Page M, Gerber B, Pasquet A, Pouleur A, Vancreynest D, Vanoverschelde J, Wieczorek J, Wieczorek P, Mizia M, Gieszczyk-Strozik K, Sikora-Puz A, Lasota B, Mizia-Stec K, Coisne A, Levy F, Malaquin D, Richardson M, Quere J, Montaigne D, Tribouilloy C, Miskowiec D, Wierzbowska-Drabik K, Wejner-Mik P, Michalski B, Wdowiak-Okrojek K, Szymczyk E, Kasprzak J, Lipiec P, Grossi F, Oddo A, Pieri F, Cordisco A, Zucchini M, Mori F, Gensini G. Club 35 Poster session 1: Wednesday 3 December 2014, 09:00-16:00 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2014. [DOI: 10.1093/ehjci/jeu238] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Goel P, Manning JA, Kumar S. NEDD4-2 (NEDD4L): the ubiquitin ligase for multiple membrane proteins. Gene 2014; 557:1-10. [PMID: 25433090 DOI: 10.1016/j.gene.2014.11.051] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [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: 10/09/2014] [Revised: 11/14/2014] [Accepted: 11/21/2014] [Indexed: 12/20/2022]
Abstract
NEDD4-2 (also known as NEDD4L, neural precursor cell expressed developmentally down-regulated 4-like) is a ubiquitin protein ligase of the Nedd4 family which is known to bind and regulate a number of membrane proteins to aid in their internalization and turnover. Several of the NEDD4-2 substrates include ion channels, such as the epithelial and voltage-gated sodium channels. Given the critical function of NEDD4-2 in regulating membrane proteins, this ligase is essential for the maintenance of cellular homeostasis. In this article we review the biology and function of this important ubiquitin-protein ligase and discuss its pathophysiological significance.
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Affiliation(s)
- Pranay Goel
- Centre for Cancer Biology, University of South Australia, Adelaide, SA 5001, Australia; Department of Medicine, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Jantina A Manning
- Centre for Cancer Biology, University of South Australia, Adelaide, SA 5001, Australia
| | - Sharad Kumar
- Centre for Cancer Biology, University of South Australia, Adelaide, SA 5001, Australia; Department of Medicine, The University of Adelaide, Adelaide, SA 5005, Australia.
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Abstract
Background: An outfall of urbanization in developing countries has been the mushrooming of slums where dwellers live in pitiable environmental conditions representing the lowest rung of social strata. This group is more vulnerable to practicing deleterious social habits, including tobacco and alcohol abuse. Aim: The present study was undertaken to understand the strength of association between risk factors suspected of causing oral precancer among slum dwellers in Delhi. Subjects and Methods: A house-to-house survey was conducted in an urban slum cluster situated in the heart of Delhi city by a single trained investigator who recorded oral mucosal lesions according to WHO criteria. Demographic details and history of suspected risk factors was recorded by personal interview of each subject. The obtained data was coded, cleaned, and analyzed manually. Chi-square test was applied and Odds’ ratios were calculated to analyze the association of risk factors with oral precancer. A statistically significant difference was set at 95% confidence interval. Results: A total of 479 subjects of both sexes were examined and 31 cases clinically diagnosed as having oral precancer, of which majority were leukoplakia. All cases except one reported practicing habits that are known risk factors for oral precancer, i.e., smoking/smokeless tobacco, chewing betel leaf/nut, and combination of these habits with alcohol. Association of oral precancer with smokeless tobacco was higher than that with smoking or chewing betel leaf/nut alone. Conclusion: Practicing combination of habits with alcohol was found to be the most strongly associated risk factor for oral precancer.
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Affiliation(s)
- A Goel
- Rajasthan Dental College, Jaipur, Rajasthan, India
| | - P Goel
- Dental Wing, All India Institute of Medical Sciences (AIIMS), Bhopal, India
| | - S Mishra
- Department of Pediatric Dentistry, Ministry of Health, Kuwait
| | - R Saha
- Department of Statistics, Ma ulana Azad Medical College, New Delhi, India
| | - Na Torwane
- Department of Public Health Dentistry, People's Dental Academy, People's University, Bhopal, Madhya Pradesh, India
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Barua A, Acharya J, Ghaskadbi S, Goel P. The relationship between fasting plasma glucose and HbA1c during intensive periods of glucose control in antidiabetic therapy. J Theor Biol 2014; 363:158-63. [PMID: 25158164 DOI: 10.1016/j.jtbi.2014.08.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [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: 06/09/2014] [Revised: 07/30/2014] [Accepted: 08/12/2014] [Indexed: 11/16/2022]
Abstract
OBJECTIVE HbA1c measurements are typically less variable than fasting plasma glucose (FPG) for diagnosing diabetes, and for assessment of progress on glucose control therapy. However HbA1c reaches steady-state relative to average plasma glucose over about 120 days. HbA1c thus overestimates average FPG during first three months of starting therapy in newly diagnosed diabetic patients, and care needs to be exercised in interpreting HbA1c measurements during this period. At steady-state excellent regression exists between HbA1c and FPG. We hypothesize that this regression can also be used to obtain reliable estimates of HbA1c relative to FPG at 4 and 8 weeks following the onset of therapy. MATERIALS AND METHODS We collected FPG and HbA1c data of type 2 diabetic patients over the first 8 weeks of starting antidiabetic treatment. We fit linear and nonlinear regression models to steady-state data, and estimated how much measured HbA1c deviates at 4 and 8 weeks from these theoretical relations. RESULTS If measured HbA1c is decremented by 0.7% (8 mmol/mol) at 4 weeks and 0.3% (3 mmol/mol) at 8 weeks, this corrected HbA1c is a better predictor of the corresponding FPG. Using hyperbolic regression, corrections to HbA1c are 0.5 and 0.1% (5 and 1 mmol/mol), respectively. CONCLUSION With the corrections proposed here, HbA1c measurements can be better interpreted in the early weeks of antidiabetic treatment.
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Affiliation(s)
- Amlan Barua
- Department of Mathematics, Indian Institute of Science Education and Research Pune, Pune 411008, India.
| | - Jhankar Acharya
- Department of Zoology, University of Pune, Pune 41107, India
| | - Saroj Ghaskadbi
- Department of Zoology, University of Pune, Pune 41107, India
| | - Pranay Goel
- Mathematics and Biology, Indian Institute of Science Education and Research Pune, Pune 411008, India
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Kapur-Ghai J, Kaur M, Goel P. Development of enzyme linked immunosorbent assay (ELISA) for the detection of root-knot nematode Meloidogyne incognita. J Parasit Dis 2014; 38:302-6. [PMID: 25035590 DOI: 10.1007/s12639-013-0246-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Accepted: 01/11/2013] [Indexed: 10/27/2022] Open
Abstract
Root-knot nematodes (Meloidogyne incognita) are obligate, sedentary plant endoparasites that are extremely polyphagous in nature and cause severe economic losses in agriculture. Hence, it is essential to control the parasite at an early stage. For any control strategy to be effective, an early and accurate diagnosis is of paramount importance. Immunoassays have the inherent advantages of sensitivity and specificity; have the potential to identify and quantify these plant-parasitic nematodes. Hence, in the present studies, enzyme-linked immunosorbent assay (ELISA) has been developed for the detection of M.incognita antigens. First an indirect ELISA was developed for detection and titration of anti-M.incognita antibodies. Results indicated as high as 320 K titre of the antisera. Finally competitive inhibition ELISA was developed employing these anti-M.incognita antibodies for detection of M.incognita antigens. Sensitivity of ELISA was 10 fg. Competitive inhibition ELISA developed in the present studies has the potential of being used as an easy, rapid, specific and sensitive diagnostic tool for the detection of M.incognita infection.
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Affiliation(s)
- J Kapur-Ghai
- Department of Zoology, Punjab Agricultural University, Ludhiana, 141004 India
| | - M Kaur
- Department of Zoology, Punjab Agricultural University, Ludhiana, 141004 India
| | - P Goel
- Amity Institute of Biotechnology, Amity University, Noida, India
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Kulkarni R, Acharya J, Ghaskadbi S, Goel P. Thresholds of oxidative stress in newly diagnosed diabetic patients on intensive glucose-control therapy. PLoS One 2014; 9:e100897. [PMID: 24971653 PMCID: PMC4074157 DOI: 10.1371/journal.pone.0100897] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 06/02/2014] [Indexed: 12/18/2022] Open
Abstract
Cellular and animal studies suggest that oxidative stress could be the central defect underlying both beta-cell dysfunction and insulin resistance in type 2 diabetes mellitus. A reduction of glycemic stress in diabetic patients on therapy alleviates systemic oxidative stress and improves insulin resistance and beta-cell secretion. Monitoring oxidative stress systematically with glucose can potentially identify an individual's recovery trajectory. To determine a quantitative model of serial changes in oxidative stress, as measured via the antioxidant glutathione, we followed patients newly diagnosed with diabetes over 8 weeks of starting anti-diabetic treatment. We developed a mathematical model which shows recovery is marked with a quantal response. For each individual the model predicts three theoretical quantities: an estimate of maximal glutathione at low stress, a glucose threshold for half-maximal glutathione, and a rate at which recovery progresses. Individual patients are seen to vary considerably in their response to glucose control. Thus, model estimates can potentially be used to determine whether an individual patient's response is better or worse than average in terms of each of these indices; they can therefore be useful in reassessing treatment strategy. We hypothesize that this method can aid the personalization of effective targets of glucose control in anti-diabetic therapy.
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Affiliation(s)
- Rashmi Kulkarni
- Department of Biology, Indian Institute of Science Education and Research, Pune, Maharashtra, India
| | - Jhankar Acharya
- Department of Zoology, University of Pune, Pune, Maharashtra, India
| | - Saroj Ghaskadbi
- Department of Zoology, University of Pune, Pune, Maharashtra, India
| | - Pranay Goel
- Mathematics and Biology, Indian Institute of Science Education and Research, Pune, Maharashtra, India
- * E-mail:
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Ganavadiya R, Chandrashekar B, Goel P, Hongal S, Jain M. Mobile and portable dental services catering to the basic oral health needs of the underserved population in developing countries: a proposed model. Ann Med Health Sci Res 2014; 4:293-304. [PMID: 24971198 PMCID: PMC4071723 DOI: 10.4103/2141-9248.133364] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [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] [Indexed: 11/06/2022] Open
Abstract
India is the second most populous country in the world with an extensive rural population (68.8%). Children less than 18 years constitute about 40% of the population. Approximately, 23.5% of the urban population resides in urban slums. The extensive rural population, school children and the urban slum dwellers are denied of even the basic dental services though there is continuous advancement in the field of dentistry. The dentist to population ratio has dramatically improved in the last one to two decades with no significant improvement in the oral health status of the general population. The various studies have revealed an increasing trend in oral diseases in the recent times especially among this underserved population. Alternate strategies have to be thought about rather than the traditional oral health-care delivery through private dentists on fee for service basis. Mobile and portable dental services are a viable option to take the sophisticated oral health services to the doorsteps of the underserved population. The databases were searched for publications from 1900 to the present (2013) using terms such as Mobile dental services, Portable dental services and Mobile and portable dental services with key articles obtained primarily from MEDLINE. This paper reviews the published and unpublished literature from different sources on the various mobile dental service programs successfully implemented in some developed and developing countries. Though the mobile and portable systems have some practical difficulties like financial considerations, they still seem to be the only way to reach every section of the community in the absence of national oral health policy and organized school dental health programs in India. The material for the present review was obtained mainly by searching the biomedical databases for primary research material using the search engine with key words such as mobile and/or portable dental services in developed and developing countries (adding each of these terms in a sequential order). Based on the review of the programs successfully implemented in developed countries, we propose a model to cater to the basic oral health needs of an extensive underserved population in India that may be pilot tested. The increasing dental manpower can best be utilized for the promotion of oral health through mobile and portable dental services. The professional dental organizations should have a strong motive to translate this into reality.
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Affiliation(s)
- R Ganavadiya
- Department of Public Health Dentistry, People's Dental Academy, Bhanpur, Bhopal, Madhya Pradesh, India
| | - Br Chandrashekar
- Department of Public Health Dentistry, People's Dental Academy, Bhanpur, Bhopal, Madhya Pradesh, India
| | - P Goel
- Department of Public Health Dentistry, People's Dental Academy, Bhanpur, Bhopal, Madhya Pradesh, India
| | - Sg Hongal
- Department of Public Health Dentistry, People's Dental Academy, Bhanpur, Bhopal, Madhya Pradesh, India
| | - M Jain
- Department of Public Health Dentistry, People's Dental Academy, Bhanpur, Bhopal, Madhya Pradesh, India
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Kulkarni R, Acharya J, Ghaskadbi S, Goel P. Oxidative stress as a covariate of recovery in diabetes therapy. Front Endocrinol (Lausanne) 2014; 5:89. [PMID: 24971075 PMCID: PMC4053684 DOI: 10.3389/fendo.2014.00089] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Accepted: 05/30/2014] [Indexed: 02/02/2023] Open
Affiliation(s)
- Rashmi Kulkarni
- Biology, Indian Institute of Science Education and Research Pune, Pune, India
| | | | | | - Pranay Goel
- Mathematics and Biology, Indian Institute of Science Education and Research Pune, Pune, India
- *Correspondence:
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Sous J, Goel P, Nooijen M. Similarity transformed equation of motion coupled cluster theory revisited: a benchmark study of valence excited states. Mol Phys 2013. [DOI: 10.1080/00268976.2013.847216] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Goel P, Isher H, Saha PK, Tendon R, Devi L, Dhami GP. Lamotrigine Induced Hypersensitivity Syndrome in Pregnancy. Nepal j obstet gynaecol 2013. [DOI: 10.3126/njog.v7i1.8843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Nepal Journal of Obstetrics and Gynaecology / Vol 7 / No. 1 / Issue 13 / Jan- June, 2012 / 68-70 DOI: http://dx.doi.org/10.3126/njog.v7i1.8843
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Goel P, Mehta A. Learning theories reveal loss of pancreatic electrical connectivity in diabetes as an adaptive response. PLoS One 2013; 8:e70366. [PMID: 23936417 PMCID: PMC3731314 DOI: 10.1371/journal.pone.0070366] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Accepted: 06/17/2013] [Indexed: 01/08/2023] Open
Abstract
Cells of almost all solid tissues are connected with gap junctions which permit the direct transfer of ions and small molecules, integral to regulating coordinated function in the tissue. The pancreatic islets of Langerhans are responsible for secreting the hormone insulin in response to glucose stimulation. Gap junctions are the only electrical contacts between the beta-cells in the tissue of these excitable islets. It is generally believed that they are responsible for synchrony of the membrane voltage oscillations among beta-cells, and thereby pulsatility of insulin secretion. Most attempts to understand connectivity in islets are often interpreted, bottom-up, in terms of measurements of gap junctional conductance. This does not, however, explain systematic changes, such as a diminished junctional conductance in type 2 diabetes. We attempt to address this deficit via the model presented here, which is a learning theory of gap junctional adaptation derived with analogy to neural systems. Here, gap junctions are modelled as bonds in a beta-cell network, that are altered according to homeostatic rules of plasticity. Our analysis reveals that it is nearly impossible to view gap junctions as homogeneous across a tissue. A modified view that accommodates heterogeneity of junction strengths in the islet can explain why, for example, a loss of gap junction conductance in diabetes is necessary for an increase in plasma insulin levels following hyperglycemia.
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Affiliation(s)
- Pranay Goel
- Mathematics and Biology, Indian Insitute of Science Education and Research Pune, Pune, Maharashtra, India.
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Dhir V, Singla M, Gupta N, Goel P, Sagar V, Sharma A, Sharma S, Singh S. THU0257 Randomized Controlled Trial Comparing Starting Dose of 7.5 mg and 15 mg Per Week of Methotrexate in Rheumatoid Arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Bajpai M, Goel P, Bhutia O, Gupta A, Seth A, Gupta AK, Pawar DK. Massive ossifying fibroma of the mandible in a child. J Indian Assoc Pediatr Surg 2013; 18:20-2. [PMID: 23599578 PMCID: PMC3628239 DOI: 10.4103/0971-9261.107011] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
An interesting case of large ossifying fibroma of the mandible in a child with a sickle-cell trait is reported.
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Affiliation(s)
- Minu Bajpai
- Department of Paediatric Surgery, All India Institute of Medical Sciences, New Delhi, India
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Abstract
A 22-years-old lady presented with obstructed labor with a probable preoperative diagnosis of bladder/urethral injury. When a laparotomy was performed there was a complete urethral disruption at the vesicourethral junction with a big anterior forniceal tear in the vagina with intact uterus and cervix. The fetus had pushed itself through the upper vagina and bladder neck into the extraperitoneal space leading to complete urethrovesical disruption as a result of prolonged pressure on the vesicourethral junction against pubic symphysis for which an end to end anastomosis was performed. Although trauma has been mentioned as a cause of such urethral disruption in the literature, no such case has been reported so far following obstructed labor. A brief discussion of various surgical options for such cases is discussed.
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Affiliation(s)
- S Arora
- Department of Obstetrics, Gynecology, Government Medical College and Hospital, Chandigarh, Punjab, India
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Yoshida T, Yamashita M, Hayashi M, Pletinck A, Glorieux G, Schepers E, Van Landschoot M, Van de Voorde J, Van Biesen W, Vanholder R, Yagi Y, Ito S, Goto S, Osaka M, Yoshida M, Pisoni R, Pisoni R, Fuller D, Fluck R, Fort J, Locatelli F, Spergel L, Goodkin D, Port F, Robinson B, Wilson S, Robertson J, Chen G, Goel P, Benner D, Krishnan M, Mayne T, Nissenson A. Vascular damage and access in CKD. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs251] [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: 11/14/2022] Open
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