1
|
Gandu S, Raza D, Thotamgari S, Pandit S. Association of post-endoscopic retrograde cholangiopancreatography pancreatitis with Inflammatory Bowel Disease. Am J Med Sci 2023. [DOI: 10.1016/s0002-9629(23)00565-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
2
|
Karande S, Gogtay NJ, More T, Sholapurwala RF, Pandit S, Waghmare S. Economic burden of limited English proficiency: A prevalence-based cost of illness study of its direct, indirect, and intangible costs. J Postgrad Med 2023; 69:27-34. [PMID: 36367030 PMCID: PMC9997600 DOI: 10.4103/jpgm.jpgm_445_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Aims The primary objective of the present study was to evaluate the economic burden of limited English proficiency (LEP) by estimating its direct, indirect, and intangible costs. A secondary objective was to assess the impact of variables on the economic burden. Design and Setting A cross-sectional single-arm descriptive study conducted in a learning disability clinic in a public medical college in Mumbai. Subjects and Methods The study cases (aged ≥8 years and ≤18 years) were recruited by non-probability sampling. A structured questionnaire was used to interview the parent to collect data related to direct and indirect costs. Intangible cost data were collected by documenting the willingness-to-pay value using the contingent valuation technique. Statistical Analysis Used A multivariate regression model was used to assess the impact of predictor variables on the costs. Results The direct, indirect, and intangible costs due to LEP were Indian Rupees (INR) 826,736, 3,828,220, and 1,906,300, respectively. Indirect costs comprised 82.2% of the total costs. Expenditure on tuition and remedial education comprised 39.86% and 14.08% of the indirect and direct costs, respectively. The average annual learning disability clinic costs were INR 2,169,146. The average annual total costs per student were INR 42,102. Higher socioeconomic status was predictive of increased "indirect costs", "total costs", and "intangible costs." Conclusion LEP is a cost-intensive condition (indirect > intangible > direct costs). Non-medical costs are the costliest component of direct costs. Parental loss of earnings is the costliest component of indirect costs.
Collapse
Affiliation(s)
- S Karande
- Department of Pediatrics, Seth G.S. Medical College and K.E.M. Hospital, Parel, Mumbai, Maharashtra, India
| | - N J Gogtay
- Department of Clinical Pharmacology, Seth G.S. Medical College and K.E.M. Hospital, Parel, Mumbai, Maharashtra, India
| | - T More
- Department of Pediatrics, Seth G.S. Medical College and K.E.M. Hospital, Parel, Mumbai, Maharashtra, India
| | - R F Sholapurwala
- Department of Pediatrics, Seth G.S. Medical College and K.E.M. Hospital, Parel, Mumbai, Maharashtra, India
| | - S Pandit
- Department of Clinical Pharmacology, Seth G.S. Medical College and K.E.M. Hospital, Parel, Mumbai, Maharashtra, India
| | - S Waghmare
- Department of Pediatrics, Seth G.S. Medical College and K.E.M. Hospital, Parel, Mumbai, Maharashtra, India
| |
Collapse
|
3
|
Yadav D, Dangol B, Shrestha N, Pandit S, Nepal A. Post-tonsillectomy Hemorrhage in Patients Receiving Ketorolac Analgesic. Kathmandu Univ Med J (KUMJ) 2023; 21:3-6. [PMID: 37800417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
Background Ketorolac, the non-steroidal anti-inflammatory drug, is thought to have less sedation as well as postoperative nausea and vomiting in comparison to opioids, but with higher risk of post-tonsillectomy hemorrhage as reported in some of the literatures. There is no consensus till date in the use of ketorolac in the management of pain following tonsil and adenoid related surgeries. Objective To find out the incidence of hemorrhage following tonsil and adenoid related surgeries in patients receiving ketorolac in postoperative period. Method This is a retrospective chart review of patients undergoing tonsil and adenoid related surgeries who had received ketorolac during April, 2013 to May, 2019 at department of ENT-HNS, Patan Academy of Health Sciences (PAHS), Lalitpur, Nepal. Post-tonsillectomy hemorrhage rate was calculated in pediatric and adult patients. Result During the study period, 103 patients (male - 50 and female - 53) received ketorolac in postoperative period. Tonsillectomy and adenotonsillectomy were performed in 71and 32 patients respectively. Forty-five patients were < 18 years whereas 58 were ≥ 18 years. Most common indication for surgery was recurrent tonsillitis (66/103) followed by adenotonsillar hypertrophy (31/103). Post-tonsillectomy hemorrhage was observed in 15 patients; among them, four out 45 were < 18 years and 11 out of 58 ≥ 18 years. All five patients out of 15, who required surgical intervention for post-tonsillectomy hemorrhage, were ≥ 18 years and were operated for recurrent tonsillitis. Rest of the patients (10/15) were managed conservatively. None of the patients required blood transfusion. Conclusion Ketorolac is not associated with increased risk of post-tonsillectomy hemorrhage in children and can safely be administered. Whereas in adults, recurrent tonsillitis being the most common indication for tonsillectomy, it should be used cautiously.
Collapse
Affiliation(s)
- D Yadav
- Department of ENT-HNS, Patan Hospital, Patan Academy of Health Sciences, Lagankhel, Lalitpur, Nepal
| | - B Dangol
- Department of ENT-HNS, Patan Hospital, Patan Academy of Health Sciences, Lagankhel, Lalitpur, Nepal
| | - N Shrestha
- Department of ENT-HNS, Patan Hospital, Patan Academy of Health Sciences, Lagankhel, Lalitpur, Nepal
| | - S Pandit
- Consultant Radiation Oncologist, Kathmandu Cancer Center, Tathali, Nala Road, Bhaktapur, Nepal
| | - A Nepal
- Department of ENT-HNS, Patan Hospital, Patan Academy of Health Sciences, Lagankhel, Lalitpur, Nepal
| |
Collapse
|
4
|
Pandit S, Goel R, Mishra G. Phosphatidic acid binds to and stimulates the activity of ARGAH2 from Arabidopsis. Plant Physiol Biochem 2022; 185:344-355. [PMID: 35752016 DOI: 10.1016/j.plaphy.2022.06.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/27/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
Phosphatidic acid (PA) has emerged as an important lipid signal during abiotic and biotic stress conditions such as drought, salinity, freezing, nutrient starvation, wounding and microbial elicitation. PA acts during stress responses primarily via binding and translocating target proteins or through modulating their activity. Owing to the importance of PA during stress signaling and developmental stages, it is imperative to identify PA interacting proteins and decipher their specific roles. In the present study, we have identified PA binding proteins from the leaves of Arabidopsis thaliana. Mass spectroscopy analysis led to the identification of 21 PA binding proteins with known roles in various cellular processes. One of the PA-binding proteins identified during this study, AtARGAH2, was further studied to unravel the role of PA interaction. Recombinant AtARGAH2 binding with immobilized PA on a solid support validated PA-AtARGAH2 binding invitro. PA binding to AtARGAH2 leads to the enhancement of arginase enzymatic activity in a dose dependent manner. Enzyme kinetics of recombinant AtARGAH2 demonstrated a lower Km value in presence of PA, suggesting role of PA in efficient enzyme-substrate binding. This simple approach could systematically be applied to perform an inclusive study on lipid binding proteins to elucidate their role in physiology of plants.
Collapse
Affiliation(s)
- Shatakshi Pandit
- Department of Botany, University of Delhi, Delhi, 110007, India.
| | - Renu Goel
- Translational Health Science and Technology Institute, Faridabad, Haryana, 121001, India.
| | - Girish Mishra
- Department of Botany, University of Delhi, Delhi, 110007, India.
| |
Collapse
|
5
|
Chawla A, Kriplani A, Pandit S, Choudhary A. Neutrophil-Lymphocyte Ratio (NLR), Platelet-Lymphocyte Ratio (PLR) and Lymphocyte-Monocyte Ratio (LMR) in predicting Systemic Inflammatory Response Syndrome (SIRS) and sepsis after Percutaneous Nephrolithotomy (PNL). Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00135-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
6
|
Karande S, Gogtay NJ, More T, Pandit S, Praveenkumar. Parental-perceived health-related quality of life of school students with borderline intellectual functioning: A cross-sectional questionnaire-based study in Mumbai, Maharashtra, India. J Postgrad Med 2022; 68:213-220. [PMID: 35975344 PMCID: PMC9841546 DOI: 10.4103/jpgm.jpgm_310_22] [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: 01/19/2023] Open
Abstract
Background and Objectives Students with borderline intellectual functioning ("slow learners") underperform in all school subjects. The primary objective of this study was to evaluate the parental-perceived health-related quality of life (HRQoL) of these students. Its secondary objective was to analyze the impact of sociodemographic variables on their HRQoL. Settings and Design Cross-sectional single-arm questionnaire-based study was conducted in the learning disability clinic in a public medical college in Mumbai. Subjects and Methods One hundred parents of slow learners aged 8 to 16 years were recruited by non-probability sampling. Their HRQoL scores were measured using the English DISABKIDS chronic generic module parent (proxy) long-version ("DCGM-37-P") instrument. Statistical Analysis Multiple regression analysis was carried out for determining the "independent" impact that sociodemographic variables had on a poor facet and total score outcomes. Results Clinically significant deficits were detected in 4 facets, namely: small deficit in "social inclusion"; medium deficits in "independence", "emotion", and "social exclusion"; and large deficit in "total score". Multivariate analysis revealed that: (i) being an only child predicted a poor "emotion" and "social exclusion" facet score outcomes (P = 0.039 and P = 0.024, respectively); (ii) being a female predicted a poor "social inclusion" facet score outcome (P = 0.022); and, (iii) studying in a single-gender school predicted a poor "limitation" facet score outcome (P = 0.020). Conclusions Parents of slow learners perceive their psychosocial and total HRQoL to be significantly compromised. There is a need to evaluate the HRQoL of slow learners so that optimum rehabilitation can be facilitated.
Collapse
Affiliation(s)
- S Karande
- Department of Pediatrics, Seth G.S. Medical College and K.E.M. Hospital, Mumbai, Maharashtra, India,Address for correspondence: Dr. Karande S, E-mail:
| | - NJ Gogtay
- Department of Clinical Pharmacology, Seth G.S. Medical College and K.E.M. Hospital, Mumbai, Maharashtra, India
| | - T More
- Department of Pediatrics, Seth G.S. Medical College and K.E.M. Hospital, Mumbai, Maharashtra, India
| | - S Pandit
- Department of Clinical Pharmacology, Seth G.S. Medical College and K.E.M. Hospital, Mumbai, Maharashtra, India
| | - Praveenkumar
- Department of Pediatrics, Seth G.S. Medical College and K.E.M. Hospital, Mumbai, Maharashtra, India
| |
Collapse
|
7
|
Affiliation(s)
- T Gailson
- Department of Pediatrics, Government Multi Specialty Hospital (GMSH)-16, Chandigarh 160016, India
| | - S Pandit
- Department of Pediatrics, Government Multi Specialty Hospital (GMSH)-16, Chandigarh 160016, India
| | - S Rathi
- Department of Pediatrics, Government Multi Specialty Hospital (GMSH)-16, Chandigarh 160016, India
| |
Collapse
|
8
|
Gailson T, Pandit S, Chandrasekaran S. Griscelli syndrome type 2. QJM 2020; 113:137. [PMID: 31199490 DOI: 10.1093/qjmed/hcz144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Gailson
- Department of Pediatrics, Government Multi-Specialty Hospital, Sector 16, Chandigarh, India
| | - S Pandit
- Department of Pediatrics, Government Multi-Specialty Hospital, Sector 16, Chandigarh, India
| | - S Chandrasekaran
- Department of Pediatrics, Government Multi-Specialty Hospital, Sector 16, Chandigarh, India
| |
Collapse
|
9
|
Pandit S, Dalal V, Mishra G. Identification of novel phosphatidic acid binding domain on sphingosine kinase 1 of Arabidopsis thaliana. Plant Physiol Biochem 2018; 128:178-184. [PMID: 29783183 DOI: 10.1016/j.plaphy.2018.04.039] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 04/25/2018] [Accepted: 04/27/2018] [Indexed: 06/08/2023]
Abstract
Phosphatidic acid (PA) is an important lipid signaling molecule which interacts with Arabidopsis thaliana Sphingosine kinase1 (AtSPHK1) during several abiotic stresses particularly drought stress as a result of Abscisic acid (ABA) signaling in guard cells. PA molecules respond by generating lipid signal and/or by binding and translocating target proteins to membrane. However, site of interaction and role of PA binding to AtSPHK1 is not clear yet. Owing to the importance of AtSPHK1 during stress signaling it is imperative to decipher the site of PA interaction with AtSPHK1. To identify the PA binding region of AtSPHK1, various deletion fragments from N-terminal and C-terminal region were prepared. Results from protein lipid overlay assay using various truncated proteins of AtSPHK1 suggested the involvement of N-terminal region, between 110 and 205 amino acids, in binding with PA. In-silico analyses performed to build homologous structure of AtSPHK1 revealed that PA docking occurs in the hydrophobic cavity of DAG-Kinase domain. Deletion of amino acids 182VSGDGI187 perturbed PA-AtSPHK1 binding, indicating an essential role of these six amino acids in PA-AtSPHK1 binding.
Collapse
Affiliation(s)
- Shatakshi Pandit
- - Department of Botany, University of Delhi, Delhi 110007, India
| | - Vikram Dalal
- - Department of Biotechnology, Indian Institute of Technology, Roorkee, Uttarakhand 247667, India
| | - Girish Mishra
- - Department of Botany, University of Delhi, Delhi 110007, India.
| |
Collapse
|
10
|
Abstract
Boron nitride has structural characteristics similar to carbon 2D materials (graphene and its derivatives) and its layered structure has been exploited to form different nanostructures such as nanohorns, nanotubes, nanoparticles and nanosheets.
Collapse
Affiliation(s)
- A. Merlo
- Department of Applied Science and Technology
- Politecnico di Torino
- Torino 10129
- Italy
| | - V. R. S. S. Mokkapati
- Systems and Synthetic Biology
- Department of Biology and Biological Engineering
- Chalmers University of Technology
- Goteborg 41329
- Sweden
| | - S. Pandit
- Systems and Synthetic Biology
- Department of Biology and Biological Engineering
- Chalmers University of Technology
- Goteborg 41329
- Sweden
| | - I. Mijakovic
- Systems and Synthetic Biology
- Department of Biology and Biological Engineering
- Chalmers University of Technology
- Goteborg 41329
- Sweden
| |
Collapse
|
11
|
|
12
|
Ahuja M, Sharma R, Tandon A, Pandit S. Comparative study of implantation rate in cleavage embryo transfer vs blastocyst transfer among couples undergoing in vitro fertilization for treatment of infertility. J ANAT SOC INDIA 2017. [DOI: 10.1016/j.jasi.2017.08.103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
13
|
Beastall JE, Hadden WA, Pandit S. Ventricular Aneurysm as a cause for post traumatic tachycardia – a case report. Scott Med J 2016. [DOI: 10.1258/rsmsmj.51.4.49d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The purpose of this case is to illustrate an interesting cause of a common symptom. It is designed to make the reader aware of the possibility of post traumatic ventricular aneurysm. It also illustrates the difficulty involved in making an unusual diagnosis in the Intensive Care setting.
Collapse
Affiliation(s)
- J E Beastall
- Dept of Orthopaedic Surgery, Perth Royal Infirmary, Scotland, UK
| | - W A Hadden
- Dept of Orthopaedic Surgery, Perth Royal Infirmary, Scotland, UK
| | - S Pandit
- Dept of Orthopaedic Surgery, Perth Royal Infirmary, Scotland, UK
| |
Collapse
|
14
|
Banerjee A, Srivastava B T, Kumar S, Tandon A, Pandit S. Agenesis of dorsal wall of sacrum: A case report. J ANAT SOC INDIA 2016. [DOI: 10.1016/j.jasi.2016.08.401] [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]
|
15
|
Katre P, Joshi S, Bhat DS, Deshmukh M, Gurav N, Pandit S, Lubree H, Marczewski S, Bennett C, Gruca L, Kalyanaraman K, Naik SS, Yajnik CS, Kalhan SC. Effect of multi-nutrient insufficiency on markers of one carbon metabolism in young women: response to a methionine load. Eur J Clin Nutr 2016; 70:687-93. [PMID: 26373967 PMCID: PMC4794418 DOI: 10.1038/ejcn.2015.155] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 07/30/2015] [Accepted: 07/31/2015] [Indexed: 11/08/2022]
Abstract
BACKGROUND/OBJECTIVES Multi-nutrient insufficiencies as a consequence of nutritional and economic factors are common in India and other developing countries. We have examined the impact of multi-nutrient insufficiency on markers of one carbon (1C) metabolism in the blood, and response to a methionine load in clinically healthy young women. SUBJECTS/METHODS Young women from Pune, India (n=10) and Cleveland, USA (n=13) were studied. Blood samples were obtained in the basal state and following an oral methionine load (50 mg/kg of body weight in orange juice). Plasma concentrations of vitamin B12, folate and B6 were measured in the basal state. The effect of methionine load on the levels of methionine, total homocysteine, cysteine, glutathione and amino acids was examined. RESULTS Indian women were significantly shorter and lighter compared with the American women and had lower plasma concentration of vitamins B12, folate and B6, essential amino acids and glutathione, but higher concentration of total homocysteine. The homocysteine response to methionine load was higher in Indian women. The plasma concentrations of glycine and serine increased in the Indian women after methionine (in juice) load. A significant negative correlation between plasma B6 and homocysteine (r= -0.70), and plasma folate and glycine and serine levels were observed in the Indian group (P<0.05) but not in the American group. CONCLUSIONS Multi-nutrient insufficiency in the Indian women caused unique changes in markers of whole body protein and 1C metabolism. These data would be useful in developing nutrient intervention strategies.
Collapse
Affiliation(s)
- P Katre
- Kamalnayan Bajaj Diabetology Research Centre, King Edward Memorial Hospital Research Centre, Pune, India
| | - S Joshi
- Kamalnayan Bajaj Diabetology Research Centre, King Edward Memorial Hospital Research Centre, Pune, India
| | - D S Bhat
- Kamalnayan Bajaj Diabetology Research Centre, King Edward Memorial Hospital Research Centre, Pune, India
| | - M Deshmukh
- Kamalnayan Bajaj Diabetology Research Centre, King Edward Memorial Hospital Research Centre, Pune, India
| | - N Gurav
- Kamalnayan Bajaj Diabetology Research Centre, King Edward Memorial Hospital Research Centre, Pune, India
| | - S Pandit
- Kamalnayan Bajaj Diabetology Research Centre, King Edward Memorial Hospital Research Centre, Pune, India
| | - H Lubree
- Kamalnayan Bajaj Diabetology Research Centre, King Edward Memorial Hospital Research Centre, Pune, India
| | - S Marczewski
- Department of Pathobiology, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - C Bennett
- Department of Pathobiology, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - L Gruca
- Department of Pathobiology, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - K Kalyanaraman
- Kamalnayan Bajaj Diabetology Research Centre, King Edward Memorial Hospital Research Centre, Pune, India
| | - S S Naik
- Kamalnayan Bajaj Diabetology Research Centre, King Edward Memorial Hospital Research Centre, Pune, India
| | - C S Yajnik
- Kamalnayan Bajaj Diabetology Research Centre, King Edward Memorial Hospital Research Centre, Pune, India
| | - S C Kalhan
- Department of Pathobiology, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| |
Collapse
|
16
|
Das A, Pandit S, Das SK, Basuthakur S, Das S. A Rare Case of Bilateral Aspergillomas in a Patient of Ankylosing Spondylitis. Kathmandu Univ Med J (KUMJ) 2016; 14:177-180. [PMID: 28166077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Pulmonary involvement by Aspergillus sp. mainly includes allergic bronchopulmonary aspergillosis, aspergilloma, and invasive aspergillosis. Aspergilloma (Fungal ball) is the most common form of aspergillous pulmonary involvement, which occurs in preexisting pulmonary cavities, especially secondary to pulmonary tuberculosis. Ankylosing spondylitis is a rare cause of upper lobe fibro-cavitary lesions in pulmonary parenchyma. It may also lead to development of fungal balls in pulmonary cavities. Most common presentation is mild to massive hemoptysis; dyspnoea, chronic cough, expectoration may be other presentation; even the patient may remain asymptomatic. Intaracavitary mobile mass is a valuable sign for fungal ball, best detected by computed tomography (CT) scan of thorax. Lobectomy is the treatment of choice to stop the hemoptysis, if the general condition of the patient is fit; otherwise associated co-morbidities complicate the post-operative scenario. In this situation, bronchial artery embolization may be used as a temporary measure to control hemoptysis. Here, we report a case of bilateral aspergillomas within the cavities located in upper lobes of both lungs in a 74 years old male who was suffering from ankylosing spondylitis for last 42 years.
Collapse
Affiliation(s)
- A Das
- Department of Pulmonary Medicine, Medical College, Kolkata, West Bengal, India
| | - S Pandit
- Department of Pulmonary Medicine, Medical College, Kolkata, West Bengal, India
| | - S K Das
- Department of Pulmonary Medicine, Medical College, Kolkata, West Bengal, India
| | - S Basuthakur
- Department of Pulmonary Medicine, Medical College, Kolkata, West Bengal, India
| | - S Das
- Department of Pulmonary Medicine, Medical College, Kolkata, West Bengal, India
| |
Collapse
|
17
|
Narayanasamy G, Pyakuryal AP, Pandit S, Vincent J, Lee C, Mavroidis P, Papanikolaou N, Kudrimoti M, Sio TT. Radiobiological evaluation of intensity modulated radiation therapy treatments of patients with head and neck cancer: A dual-institutional study. J Med Phys 2015; 40:165-9. [PMID: 26500403 PMCID: PMC4594386 DOI: 10.4103/0971-6203.165075] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
In clinical practice, evaluation of clinical efficacy of treatment planning stems from the radiation oncologist's experience in accurately targeting tumors, while keeping minimal toxicity to various organs at risk (OAR) involved. A more objective, quantitative method may be raised by using radiobiological models. The purpose of this work is to evaluate the potential correlation of OAR-related toxicities to its radiobiologically estimated parameters in simultaneously integrated boost (SIB) intensity modulated radiation therapy (IMRT) plans of patients with head and neck tumors at two institutions. Lyman model for normal tissue complication probability (NTCP) and the Poisson model for tumor control probability (TCP) models were used in the Histogram Analysis in Radiation Therapy (HART) analysis. In this study, 33 patients with oropharyngeal primaries in the head and neck region were used to establish the correlation between NTCP values of (a) bilateral parotids with clinically observed rates of xerostomia, (b) esophagus with dysphagia, and (c) larynx with dysphagia. The results of the study indicated a strong correlation between the severity of xerostomia and dysphagia with Lyman NTCP of bilateral parotids and esophagus, respectively, but not with the larynx. In patients without complications, NTCP values of these organs were negligible. Using appropriate radiobiological models, the presence of a moderate to strong correlation between the severities of complications with NTCP of selected OARs suggested that the clinical outcome could be estimated prior to treatment.
Collapse
Affiliation(s)
- G Narayanasamy
- Department of Radiation Oncology, University of Texas Health Science Center, San Antonio, TX, USA
| | - A P Pyakuryal
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
| | - S Pandit
- Department of Radiation Oncology, BP Koirala Memorial Cancer Hospital, Bharatpur, Nepal
| | - J Vincent
- Department of Radiation Oncology, University of Texas Health Science Center, San Antonio, TX, USA
| | - C Lee
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, MD, USA
| | - P Mavroidis
- Department of Radiation Oncology, University of Texas Health Science Center, San Antonio, TX, USA
| | - N Papanikolaou
- Department of Radiation Oncology, University of Texas Health Science Center, San Antonio, TX, USA
| | - M Kudrimoti
- Department of Radiation Medicine, University of Kentucky, Lexington, KY, USA
| | - T T Sio
- Department of Radiation Oncology, Mayo Clinic, Rochester, MN, USA
| |
Collapse
|
18
|
Pandit S, Biswas S, Jana U, De RK, Mukhopadhyay SC, Biswas TK. Clinical evaluation of purified Shilajit on testosterone levels in healthy volunteers. Andrologia 2015; 48:570-5. [PMID: 26395129 DOI: 10.1111/and.12482] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/27/2015] [Indexed: 11/29/2022] Open
Affiliation(s)
- S. Pandit
- Research Unit Department of Health and Family Welfare J. B. Roy State Ayurvedic Medical College and Hospital Government of West Bengal The West Bengal University of Health Sciences Kolkata India
| | - S. Biswas
- Research Unit Department of Health and Family Welfare J. B. Roy State Ayurvedic Medical College and Hospital Government of West Bengal The West Bengal University of Health Sciences Kolkata India
| | - U. Jana
- Research Unit Department of Health and Family Welfare J. B. Roy State Ayurvedic Medical College and Hospital Government of West Bengal The West Bengal University of Health Sciences Kolkata India
| | - R. K. De
- Research Unit Department of Health and Family Welfare J. B. Roy State Ayurvedic Medical College and Hospital Government of West Bengal The West Bengal University of Health Sciences Kolkata India
| | - S. C. Mukhopadhyay
- Research Unit Department of Health and Family Welfare J. B. Roy State Ayurvedic Medical College and Hospital Government of West Bengal The West Bengal University of Health Sciences Kolkata India
| | - T. K. Biswas
- Research Unit Department of Health and Family Welfare J. B. Roy State Ayurvedic Medical College and Hospital Government of West Bengal The West Bengal University of Health Sciences Kolkata India
| |
Collapse
|
19
|
Pandit S, Cai JN, Song KY, Jeon JG. Identification of anti-biofilm components in Withania somnifera and their effect on virulence of Streptococcus mutans biofilms. J Appl Microbiol 2015; 119:571-81. [PMID: 25976122 DOI: 10.1111/jam.12851] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 04/14/2015] [Accepted: 05/12/2015] [Indexed: 12/21/2022]
Abstract
AIMS The aim of this study was to identify components of the Withania somnifera that could show anti-virulence activity against Streptococcus mutans biofilms. METHODS AND RESULTS The anti-acidogenic activity of fractions separated from W. somnifera was compared, and then the most active anti-acidogenic fraction was chemically characterized using gas chromatography-mass spectroscopy. The effect of the identified components on the acidogenicity, aciduricity and extracellular polymeric substances (EPS) formation of S. mutans UA159 biofilms was evaluated. The change in accumulation and acidogenicity of S. mutans UA159 biofilms by periodic treatments (10 min per treatment) with the identified components was also investigated. Of the fractions, n-hexane fraction showed the strongest anti-acidogenic activity and was mainly composed of palmitic, linoleic and oleic acids. Of the identified components, linoleic and oleic acids strongly affected the acid production rate, F-ATPase activity and EPS formation of the biofilms. Periodic treatment with linoleic and oleic acids during biofilm formation also inhibited the biofilm accumulation and acid production rate of the biofilms without killing the biofilm bacteria. CONCLUSIONS These results suggest that linoleic and oleic acids may be effective agents for restraining virulence of S. mutans biofilms. SIGNIFICANCE AND IMPACT OF THE STUDY Linoleic and oleic acids may be promising agents for controlling virulence of cariogenic biofilms and subsequent dental caries formation.
Collapse
Affiliation(s)
- S Pandit
- Department of Preventive Dentistry, School of Dentistry, Institute of Oral Bioscience and BK 21 Plus Program, Chonbuk National University, Jeonju, Korea
| | - J N Cai
- Department of Preventive Dentistry, School of Dentistry, Institute of Oral Bioscience and BK 21 Plus Program, Chonbuk National University, Jeonju, Korea
| | - K Y Song
- Research Institute of Clinical Medicine of Chonbuk National University, Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Korea
| | - J G Jeon
- Department of Preventive Dentistry, School of Dentistry, Institute of Oral Bioscience and BK 21 Plus Program, Chonbuk National University, Jeonju, Korea.,Research Institute of Clinical Medicine of Chonbuk National University, Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Korea
| |
Collapse
|
20
|
Pandit S, Cai JN, Jung JE, Lee YS, Jeon JG. Effect of brief cetylpyridinium chloride treatments during early and mature cariogenic biofilm formation. Oral Dis 2015; 21:565-71. [DOI: 10.1111/odi.12312] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 11/11/2014] [Accepted: 01/07/2015] [Indexed: 11/30/2022]
Affiliation(s)
- S Pandit
- Department of Preventive Dentistry; School of Dentistry; Institute of Oral Bioscience and BK 21 Plus Program; Chonbuk National University; Jeonju Korea
| | - J-N Cai
- Department of Preventive Dentistry; School of Dentistry; Institute of Oral Bioscience and BK 21 Plus Program; Chonbuk National University; Jeonju Korea
| | - J-E Jung
- Department of Preventive Dentistry; School of Dentistry; Institute of Oral Bioscience and BK 21 Plus Program; Chonbuk National University; Jeonju Korea
| | - Y-S Lee
- Department of Dental Hygiene; Sun Moon University; Asan Korea
| | - J-G Jeon
- Department of Preventive Dentistry; School of Dentistry; Institute of Oral Bioscience and BK 21 Plus Program; Chonbuk National University; Jeonju Korea
| |
Collapse
|
21
|
Pramod R, Pandit S, Desai D, Suresh K, Ingaleshwar P, Shetty S, Ahamad S. Immunohistochemical assessment of proliferating cell nuclear antigen protein expression in plaque, reticular and erosive types of oral lichen planus. Ann Med Health Sci Res 2014; 4:598-602. [PMID: 25221712 PMCID: PMC4160688 DOI: 10.4103/2141-9248.139337] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Proliferating cell nuclear antigen (PCNA) is a nuclear protein synthesized in the late G1 and S-phase of the cell cycle. Immunodetection of this protein represents a useful marker of the proliferation status of lesions. AIMS The aim of this study is to evaluate the immunohistochemical expression of PCNA in oral lichen planus (OLP) and to assess the PCNA expression in a different layer of epithelium in different types of OLP. SUBJECTS AND METHODS A total of 96 cases of histologically proven OLP, 32 cases each of erosive, reticular and plaque type were selected. Two sections were taken from each one for H and E. Other sections were stained according to super sensitive polymer horseradish peroxidase method for identifying PCNA expression. RESULTS Of the three types of OLP, erosive type showed higher expression of PCNA (average 66.8%, minimum of 55% and maximum of 80.3%) followed by reticular (average 37.7%, minimum of 26% and maximum of 47%) and plaque type (average 17%, minimum of 5% and maximum of 25%) indicating increased proliferative activity. The erosive type also showed higher expression of PCNA in all the layers of epithelium followed by reticular and plaque type. CONCLUSION PCNA is a good marker to indicate proliferation status of disease. Out of three types, erosive type possess more proliferative ratio, chances of malignant changes is more in this type.
Collapse
Affiliation(s)
- Rc Pramod
- Department of Oral Pathology and Microbiology, School of Dental Sciences, Krishna Institute of Medical Sciences, Deemed University, Karad, Satara, Maharashtra, India
| | - S Pandit
- Department of Oral Pathology and Microbiology, A J Institute of Dental Sciences, Mangalore, Karnataka, India
| | - D Desai
- Department of Oral Pathology and Microbiology, A J Institute of Dental Sciences, Mangalore, Karnataka, India
| | - Kv Suresh
- Department of Oral Medicine and Radiology, School of Dental Sciences, Krishna Institute of Medical Sciences, Deemed University, Karad, Satara, Maharashtra, India
| | - Ps Ingaleshwar
- Department of Oral Pathology and Microbiology, A J Institute of Dental Sciences, Mangalore, Karnataka, India
| | - Sj Shetty
- Department of Oral Pathology and Microbiology, A J Institute of Dental Sciences, Mangalore, Karnataka, India
| | - S Ahamad
- Department of Oral Pathology and Microbiology, KMCT Dental College, Calicut, Kerala, India
| |
Collapse
|
22
|
Narayanasamy G, Pyakuryal A, Pandit S, Sio T, Vincent J, Kudrimoti M, Li Y. Radiobiological Evaluation of IMRT Treatment of Head and Neck Patients: Multi-institutional Study. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1577] [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]
|
23
|
Parikh PM, Prabhash K, Govind KB, Digumarti R, Pandit S, Banerjee I, Biyani R, Deshmukh A, Doval D, Bhattacharyya GS, Gupta S. Standard operating procedure for audio visual recording of informed consent: an initiative to facilitate regulatory compliance. Indian J Cancer 2014; 51:113-6. [PMID: 25104190 DOI: 10.4103/0019-509x.138158] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
The office of the Drugs Controller General (India) vide order dated 19 th November 2013 has made audio visual (AV) recording of the informed consent mandatory for the conduct of all clinical trials in India. We therefore developed a standard operating procedure (SOP) to ensure that this is performed in compliance with the regulatory requirements, internationally accepted ethical standards and that the recording is stored as well as archived in an appropriate manner. The SOP was developed keeping in mind all relevant orders, regulations, laws and guidelines and have been made available online. Since, we are faced with unique legal and regulatory requirements that are unprecedented globally, this SOP will allow the AV recording of the informed consent to be performed, archived and retrieved to demonstrate ethical, legal and regulatory compliance. We also compared this to the draft guidelines for AV recording dated 9 th January 2014 developed by Central Drugs Standard Control Organization. Our future efforts will include regular testing, feedback and update of the SOP.
Collapse
Affiliation(s)
- P M Parikh
- SAARC Federation of Oncology, Mumbai, India
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Pandit S, Song JG, Kim YJ, Jeong JA, Jo JY, Lee GS, Kim HW, Jeon BH, Lee JU, Park JB. Attenuated benzodiazepine-sensitive tonic GABAA currents of supraoptic magnocellular neuroendocrine cells in 24-h water-deprived rats. J Neuroendocrinol 2014; 26:26-34. [PMID: 24313753 DOI: 10.1111/jne.12123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 04/30/2013] [Revised: 11/05/2013] [Accepted: 12/01/2013] [Indexed: 11/26/2022]
Abstract
In supraoptic nucleus (SON) magnocellular neurosecretory cells (MNCs), γ-GABA, via activation of GABAA receptors (GABAA Rs), mediates persistent tonic inhibitory currents (Itonic ), as well as conventional inhibitory postsynaptic currents (IPSCs, Iphasic ). In the present study, we examined the functional significance of Itonic in SON MNCs challenged by 24-h water deprivation (24WD). Although the main characteristics of spontaneous IPSCs were similar in 24WD compared to euhydrated (EU) rats, Itonic , measured by bicuculline (BIC)-induced Iholding shifts, was significantly smaller in 24WD compared to EU rats (P < 0.05). Propofol and diazepam prolonged IPSC decay time to a similar extent in both groups but induced less Itonic in 24WD compared to EU rats, suggesting a selective decrease in GABAA receptors mediating Itonic over Iphasic in 24WD rats. THIP (4,5,6,7-tetrahydroisoxazolo[5,4-c]pyridin-3-ol), a preferential δ subunit agonist, and L-655,708, a GABAA receptor α5 subunit selective imidazobenzodiazepine, caused a significantly smaller inward and outward shift in Iholding , respectively, in 24WD compared to EU rats (P < 0.05 in both cases), suggesting an overall decrease in the α5 subunit-containing GABAA Rs and the δ subunit-containing receptors mediating Itonic in 24WD animals. Consistent with a decrease in 24WD Itonic , bath application of GABA induced significantly less inhibition of the neuronal firing activity in 24WD compared to EU SON MNCs (P < 0.05). Taken together, the results of the present study indicate a selective decrease in GABAA Rs functions mediating Itonic as opposed to those mediating Iphasic in SON MNCs, demonstrating the functional significance of Itonic with respect to increasing neuronal excitability and hormone secretion in 24WD rats.
Collapse
Affiliation(s)
- S Pandit
- Department of Physiology, School of Medicine, Brain Research Institute, Chungnam National University, Jung-gu, Daejeon, Korea
| | | | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Ramalingam S, Crawford J, Chang A, Manegold C, Perez-Soler R, Douillard JY, Thatcher N, Barlesi F, Owonikoko T, Wang Y, Pultar P, Zhu J, Malik R, Giaccone G, Della-Fiorentina S, Begbie S, Jennens R, Dass J, Pittman K, Ivanova N, Koynova T, Petrov P, Tomova A, Tzekova V, Couture F, Hirsh V, Burkes R, Sangha R, Ambrus M, Janaskova T, Musil J, Novotny J, Zatloukal P, Jakesova J, Klenha K, Roubec J, Vanasek J, Fayette J, Barlesi F, Bennouna-Louridi J, Chouaid C, Mazières J, Vallerand H, Robinet G, Souquet PJ, Spaeth D, Schott R, Lena H, Martinet Y, El Kouri C, Baize N, Scherpereel A, Molinier O, Fuchs F, Josten K, Manegold C, Marschner N, Schneller F, Overbeck T, Thomas M, von Pawel J, Reck M, Schuette W, Hagen V, Schneider CP, Georgoulias V, Varthalitis I, Zarogoulidis K, Syrigos K, Papandreou C, Bocskei C, Csanky E, Juhasz E, Losonczy G, Mark Z, Molnar I, Papai-Szekely Z, Tehenes S, Vinkler I, Almel S, Bakshi A, Bondarde S, Maru A, Pathak A, Pedapenki R, Prasad K, Prasad S, Kilara N, Gorijavolu D, Deshmukh C, John S, Sharma L, Amoroso D, Bajetta E, Bidoli P, Bonetti A, De Marinis F, Maio M, Passalacqua R, Cascinu S, Bearz A, Bitina M, Brize A, Purkalne G, Skrodele M, Baba A, Ratnavelu K, Saw M, Samson-Fernando M, Ladrera G, Jassem J, Koralewski P, Serwatowski P, Krzakowski M, Cebotaru C, Filip D, Ganea-Motan D, Ianuli C, Manolescu I, Udrea A, Burdaeva O, Byakhov M, Filippov A, Lazarev S, Mosin I, Orlov S, Udovitsa D, Khorinko A, Protsenko S, Chang A, Lim H, Tan Y, Tan E, Bastus Piulats R, Garcia-Foncillas J, Valdivia J, de Castro J, Domine Gomez M, Kim S, Lee JS, Kim H, Lee J, Shin S, Kim DW, Kim YC, Park K, Chang CS, Chang GC, Goan YG, Su WC, Tsai CM, Kuo HP, Benekli M, Demir G, Gokmen E, Sevinc A, Crawford J, Giaccone G, Haigentz M, Owonikoko T, Agarwal M, Pandit S, Araujo R, Vrindavanam N, Bonomi P, Berg A, Wade J, Bloom R, Amin B, Camidge R, Hill D, Rarick M, Flynn P, Klein L, Lo Russo K, Neubauer M, Richards P, Ruxer R, Savin M, Weckstein D, Rosenberg R, Whittaker T, Richards D, Berry W, Ottensmeier C, Dangoor A, Steele N, Summers Y, Rankin E, Rowley K, Giridharan S, Kristeleit H, Humber C, Taylor P. Talactoferrin alfa versus placebo in patients with refractory advanced non-small-cell lung cancer (FORTIS-M trial). Ann Oncol 2013; 24:2875-80. [DOI: 10.1093/annonc/mdt371] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
26
|
Ji X, Zhou Y, Pandit S, Huang J, Li H, Lin CY, Xiao R, Burge CB, Fu XD. SR proteins collaborate with 7SK and promoter-associated nascent RNA to release paused polymerase. Cell 2013; 153:855-68. [PMID: 23663783 DOI: 10.1016/j.cell.2013.04.028] [Citation(s) in RCA: 244] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Revised: 03/14/2013] [Accepted: 04/15/2013] [Indexed: 10/26/2022]
Abstract
RNAP II is frequently paused near gene promoters in mammals, and its transition to productive elongation requires active recruitment of P-TEFb, a cyclin-dependent kinase for RNAP II and other key transcription elongation factors. A fraction of P-TEFb is sequestered in an inhibitory complex containing the 7SK noncoding RNA, but it has been unclear how P-TEFb is switched from the 7SK complex to RNAP II during transcription activation. We report that SRSF2 (also known as SC35, an SR-splicing factor) is part of the 7SK complex assembled at gene promoters and plays a direct role in transcription pause release. We demonstrate RNA-dependent, coordinated release of SRSF2 and P-TEFb from the 7SK complex and transcription activation via SRSF2 binding to promoter-associated nascent RNA. These findings reveal an unanticipated SR protein function, a role for promoter-proximal nascent RNA in gene activation, and an analogous mechanism to HIV Tat/TAR for activating cellular genes.
Collapse
Affiliation(s)
- Xiong Ji
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan, Hubei 430072, China
| | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Pandit S, Kim HJ, Song KY, Jeon JG. Relationship between fluoride concentration and activity against virulence factors and viability of a cariogenic biofilm: in vitro study. Caries Res 2013; 47:539-47. [PMID: 23774608 DOI: 10.1159/000348519] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Accepted: 01/30/2013] [Indexed: 11/19/2022] Open
Abstract
Despite widespread use of various concentrations of fluoride for the prevention of dental caries, the relationship between fluoride concentration and activity against cariogenic biofilms has not been much studied. Herein we investigated the relationship between fluoride concentration and activity against virulence factors and viability of Streptococcus mutans biofilms. S. mutans biofilms were formed on saliva-coated hydroxyapatite discs. The 70-hour-old biofilms were exposed to 0, 1, 3, 10, 30, 100, 300, 1,000 or 2,000 ppm F(-). The changes of virulence factors and viability of the biofilms were analyzed using biochemical methods and laser scanning confocal fluorescence microscopy. At 1-2,000 ppm F(-), the activity of fluoride against acid production, acid tolerance, and extracellular polysaccharide formation of S. mutans biofilms accurately followed a sigmoidal pattern of concentration dependence (R(2) = 0.94-0.99), with EC50 values ranging from 3.07 to 24.7 ppm F(-). Generally, the activity of fluoride against the virulence factors was concentration-dependently augmented in 10-100 ppm F(-) and did not increase further at concentrations higher than 100 ppm F(-). However, fluoride did not alter glucosyltransferase activity and viability of S. mutans biofilm cells in all concentrations tested. These results can provide a basis for the selection of appropriate fluoride concentrations that reduce the physiological ability of cariogenic biofilms.
Collapse
Affiliation(s)
- S Pandit
- Department of Preventive Dentistry, School of Dentistry and Institute of Oral Bioscience, Chonbuk National University, Jeonju, Republic of Korea
| | | | | | | |
Collapse
|
28
|
Pandit S, Zhou Y, Shiue L, Coutinho-Mansfield G, Li H, Qiu J, Huang J, Yeo GW, Ares M, Fu XD. Genome-wide analysis reveals SR protein cooperation and competition in regulated splicing. Mol Cell 2013; 50:223-35. [PMID: 23562324 DOI: 10.1016/j.molcel.2013.03.001] [Citation(s) in RCA: 225] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 01/02/2013] [Accepted: 02/25/2013] [Indexed: 12/12/2022]
Abstract
SR proteins are well-characterized RNA binding proteins that promote exon inclusion by binding to exonic splicing enhancers (ESEs). However, it has been unclear whether regulatory rules deduced on model genes apply generally to activities of SR proteins in the cell. Here, we report global analyses of two prototypical SR proteins, SRSF1 (SF2/ASF) and SRSF2 (SC35), using splicing-sensitive arrays and CLIP-seq on mouse embryo fibroblasts (MEFs). Unexpectedly, we find that these SR proteins promote both inclusion and skipping of exons in vivo, but their binding patterns do not explain such opposite responses. Further analyses reveal that loss of one SR protein is accompanied by coordinated loss or compensatory gain in the interaction of other SR proteins at the affected exons. Therefore, specific effects on regulated splicing by one SR protein actually depend on a complex set of relationships with multiple other SR proteins in mammalian genomes.
Collapse
Affiliation(s)
- Shatakshi Pandit
- Department of Cellular and Molecular Medicine and Institute for Genomic Medicine, University of California, San Diego, La Jolla, CA 92093-0651, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Martins R, Filgueras-Rama D, Kaur K, Avula U, Ennis S, Mironov S, Kalifa J, Brenfeld O, Rajamani S, Belardinelli L, Jalife J, Pandit S. Effects of Ranolazine on Paroxysmal and Persistent Atrial Fibrillation in Isolated Sheep Hearts. Heart Rhythm 2012. [DOI: 10.1016/j.hrthm.2012.09.106] [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: 10/27/2022]
|
30
|
Pandit S, Choudhury S, Das SK, Nandi S. Leucocytosis in a case of Lung Cancer: Infection or Paraneoplastic Syndrome? - Dilemma in Diagnosis and Treatment. Med J Malaysia 2012; 67:542-544. [PMID: 23770881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A 65 year old male smoker was diagnosed with squamous cell carcinoma of upper lobe of the right lung complicated with Horner's syndrome and gradually increasing leucocytosis. Alhough the inflammatory biomarker level in serum was low, there was no definite way to determine the cause of the leucocytosis (whether infection or hematologic paraneoplastic syndrome). After empirical antibiotic therapy, his fever subsided but the leucocytosis persisted. It was difficult for us to take a decision regarding the priority of the treatment of infection or the lung cancer. Only after the first cycle chemotherapy, did the leucocytosis rapidly drop down. Normal serum procalcitonin level and quick response to chemotherapy indicated that leucocytosis was a manifestation of paraneoplastic syndrome. Treating the underlying cancer is the first step.
Collapse
Affiliation(s)
- S Pandit
- Medical College, 88, College Street, Kolkata, West Bengal 713 073 India.
| | | | | | | |
Collapse
|
31
|
Zarzoso M, Calvo C, Kean A, Pandit S, Pauza D, Jalife J, Noujaim S. Sinoatrial Node Activity is Modulated by Nerves Emerging From the Intrinsic Cardiac Ganglia of the Pulmonary Veins in the Mouse Heart. Heart Rhythm 2011. [DOI: 10.1016/j.hrthm.2011.09.036] [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: 10/15/2022]
|
32
|
Mallick S, Bisaws A, Joshi N, Pandit S, Mohanti B, Julka R, Rath G. 8531 POSTER Esthesioneuroblastoma – Clinical Experience From a Regional Cancer Centre in North India. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72173-6] [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: 10/17/2022]
|
33
|
Ahn EY, DeKelver RC, Lo MC, Nguyen TA, Matsuura S, Boyapati A, Pandit S, Fu XD, Zhang DE. SON controls cell-cycle progression by coordinated regulation of RNA splicing. Mol Cell 2011; 42:185-98. [PMID: 21504830 DOI: 10.1016/j.molcel.2011.03.014] [Citation(s) in RCA: 109] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Revised: 12/28/2010] [Accepted: 02/02/2011] [Indexed: 12/15/2022]
Abstract
It has been suspected that cell-cycle progression might be functionally coupled with RNA processing. However, little is known about the role of the precise splicing control in cell-cycle progression. Here, we report that SON, a large Ser/Arg (SR)-related protein, is a splicing cofactor contributing to efficient splicing of cell-cycle regulators. Downregulation of SON leads to severe impairment of spindle pole separation, microtubule dynamics, and genome integrity. These molecular defects result from inadequate RNA splicing of a specific set of cell-cycle-related genes that possess weak splice sites. Furthermore, we show that SON facilitates the interaction of SR proteins with RNA polymerase II and other key spliceosome components, suggesting its function in efficient cotranscriptional RNA processing. These results reveal a mechanism for controlling cell-cycle progression through SON-dependent constitutive splicing at suboptimal splice sites, with strong implications for its role in cancer and other human diseases.
Collapse
Affiliation(s)
- Eun-Young Ahn
- Moores Cancer Center, University of California, San Diego, La Jolla, CA 92093, USA
| | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Joshi NP, Mallick S, Pandit S, Julka PK, Gandhi A, Kunhiparambath H, Sharma D, Rath GK. Phyllodes tumor of the breast treated with a multimodality approach: A single-institution retrospective analysis. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e11552] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
35
|
Julka PK, Mallick S, Pandit S, Joshi NP, Gandhi A, Kunhiparambath H, Sharma D, Rath GK. Triple-negative breast cancer: A single-institution retrospective analysis. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e11543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
36
|
Davey M, Pandit S. Theme: Paediatric orthopaedics: the supracondylar fracture. Arch Emerg Med 2011. [DOI: 10.1136/emj.2010.108175] [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]
|
37
|
Ponnusankar S, Pandit S, Venkatesh M, Bandyopadhyay A, Mukherjee PK. Cytochrome P450 Inhibition Assay for Standardized Extract of Terminalia chebula
Retz. Phytother Res 2010; 25:151-4. [DOI: 10.1002/ptr.2993] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
38
|
|
39
|
Florindo H, Pandit S, Gonçalves L, Alpar H, Almeida A. Surface modified polymeric nanoparticles for immunisation against equine strangles. Int J Pharm 2010; 390:25-31. [DOI: 10.1016/j.ijpharm.2009.10.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2009] [Revised: 09/08/2009] [Accepted: 10/03/2009] [Indexed: 12/22/2022]
|
40
|
Biswas TK, Pandit S, Mondal S, Biswas SK, Jana U, Ghosh T, Tripathi PC, Debnath PK, Auddy RG, Auddy B. Clinical evaluation of spermatogenic activity of processed Shilajit in oligospermia. Andrologia 2010; 42:48-56. [PMID: 20078516 DOI: 10.1111/j.1439-0272.2009.00956.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The safety and spermatogenic activity of processed Shilajit (PS) were evaluated in oligospermic patients. Initially, 60 infertile male patients were assessed and those having total sperm counts below 20 million ml(-1) semen were considered oligospermic and enrolled in the study (n = 35). PS capsule (100 mg) was administered twice daily after major meals for 90 days. Total semenogram and serum testosterone, luteinising hormone and follicle-stimulating hormone were estimated before and at the end of the treatment. Malondialdehyde (MDA), a marker for oxidative stress, content of semen and biochemical parameters for safety were also evaluated. Twenty-eight patients who completed the treatment showed significant (P < 0.001) improvement in spermia (+37.6%), total sperm count (+61.4%), motility (12.4-17.4% after different time intervals), normal sperm count (+18.9%) with concomitant decrease in pus and epithelial cell count compared with baseline value. Significant decrease of semen MDA content (-18.7%) was observed. Moreover, serum testosterone (+23.5%; P < 0.001) and FSH (+9.4%; P < 0.05) levels significantly increased. HPLC chromatogram revealed inclusion of PS constituents in semen. Unaltered hepatic and renal profiles of patients indicated that PS was safe at the given dose. The present findings provide further evidence of the spermatogenic nature of Shilajit, as attributed in Ayurvedic medicine, particularly when administered as PS.
Collapse
Affiliation(s)
- T K Biswas
- J. B. Roy State Ayurvedic Medical College and Hospital, Kolkata, India.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Kwon YR, Son KJ, Pandit S, Kim JE, Chang KW, Jeon JG. Bioactivity-guided separation of anti-acidogenic substances againstStreptococcus mutansUA 159 fromPolygonum cuspidatum. Oral Dis 2010; 16:204-9. [DOI: 10.1111/j.1601-0825.2009.01636.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
42
|
Dey A, Bhuniya S, Datta Chaudhuri A, Pandit S, Saha-Dutta Chowdhury M, Sengupta A, Saha I, De P. Iodopovidone pleurodesis: experience of a tertiary hospital in Kolkata. Singapore Med J 2010; 51:163-165. [PMID: 20358157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
INTRODUCTION The management of recurrent pleural effusion or pneumothorax has always been a cause for serious concern among chest physicians. Among the wide variety of agents that are available for pleurodesis, povidone iodine is now perhaps the most sought after agent as it is cheap, easily available, effective and safe. This study was conducted to establish the efficacy and safety of povidone iodine as an agent for pleurodesis in patients with recurrent pleural effusion and pneumothorax. METHODS A total of 38 consecutive patients with symptomatic malignant or recurrent pleural effusion and pneumothorax received povidone iodine for pleurodesis over a period of 18 months. The mean follow-up period was 10.2 months, with a standard deviation of 2.9 months. RESULTS Out of the 38 patients, 29 had malignant pleural effusion, eight had recurrent pneumothorax and one had tubercular pleural effusion which was nonresponsive to antitubercular therapy. A complete response with no recurrence during follow-up was obtained in 34 (89.5 percent) patients. All the cases of failure had malignant pleural effusion. Three (7.9 percent) patients experienced intense chest pains after the installation of sclerosing agent, but they recovered with immediate symptomatic management. CONCLUSION Recurrent pleural effusion or pneumothorax due to any cause may be managed effectively and safely by chemical pleurodesis with povidone iodine. It may be considered as the agent of choice to achieve pleurodesis, especially in resource constrained countries like India, as it is inexpensive and easily available.
Collapse
Affiliation(s)
- A Dey
- Department of Chest Medicine, Radha Gobinda Kar Medical College and Hospital, Kolkata, India.
| | | | | | | | | | | | | | | |
Collapse
|
43
|
Pandit S, Deshmukh P. P43 A random prospective comparative study to evaluate the efficacy of intravenous iron sucrose versus oral ferrous sulphate in the treatment of iron deficiency anaemia of pregnancy. Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)61535-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
44
|
Davey M, Pandit S. EMQs: Paediatrics. Arch Emerg Med 2009. [DOI: 10.1136/emj.2009.085241] [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]
|
45
|
Pandit S, Shitut P, Deshmukh P, Pawar V. V39 Random prospective comparative study of vaginal hysterectomy versus abdominal hysterectomy in cases of non-descent bulky uteri. Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)61476-4] [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]
|
46
|
Florindo H, Pandit S, Gonçalves L, Alpar H, Almeida A. New approach on the development of a mucosal vaccine against strangles: Systemic and mucosal immune responses in a mouse model. Vaccine 2009; 27:1230-41. [DOI: 10.1016/j.vaccine.2008.12.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2008] [Revised: 12/02/2008] [Accepted: 12/09/2008] [Indexed: 11/26/2022]
|
47
|
Florindo H, Pandit S, Lacerda L, Gonçalves L, Alpar H, Almeida A. The enhancement of the immune response against S. equi antigens through the intranasal administration of poly-ɛ-caprolactone-based nanoparticles. Biomaterials 2009; 30:879-91. [DOI: 10.1016/j.biomaterials.2008.10.035] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2008] [Accepted: 10/21/2008] [Indexed: 10/21/2022]
|
48
|
Lin S, Coutinho-Mansfield G, Wang D, Pandit S, Fu XD. The splicing factor SC35 has an active role in transcriptional elongation. Nat Struct Mol Biol 2008; 15:819-26. [PMID: 18641664 PMCID: PMC2574591 DOI: 10.1038/nsmb.1461] [Citation(s) in RCA: 285] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2008] [Accepted: 06/13/2008] [Indexed: 12/24/2022]
Abstract
Mounting evidence suggests that transcription and RNA processing are intimately coupled in vivo, although each process can occur independently in vitro. It is generally thought that polymerase II (Pol II) C-terminal domain (CTD) kinases are recruited near the transcription start site to overcome initial Pol II pausing events, and that stably bound kinases facilitate productive elongation and co-transcriptional RNA processing. Whereas most studies have focused on how RNA processing machineries take advantage of the transcriptional apparatus to efficiently modify nascent RNA, here we report that a well-studied splicing factor, SC35, affects transcriptional elongation in a gene-specific manner. SC35 depletion induces Pol II accumulation within the gene body and attenuated elongation, which are correlated with defective P-TEFb (a complex composed of CycT1-CDK9) recruitment and dramatically reduced CTD Ser2 phosphorylation. Recombinant SC35 is sufficient to rescue this defect in nuclear run-on experiments. These findings suggest a reciprocal functional relationship between the transcription and splicing machineries during gene expression.
Collapse
Affiliation(s)
- Shengrong Lin
- Department of Cellular and Molecular Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093-0651, USA
| | | | | | | | | |
Collapse
|
49
|
Florindo HF, Pandit S, Gonçalves LMD, Alpar HO, Almeida AJ. Streptococcus equi antigens adsorbed onto surface modified poly-epsilon-caprolactone microspheres induce humoral and cellular specific immune responses. Vaccine 2008; 26:4168-77. [PMID: 18599166 DOI: 10.1016/j.vaccine.2008.05.074] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2008] [Revised: 04/29/2008] [Accepted: 05/25/2008] [Indexed: 10/21/2022]
Abstract
Streptococcus equi subsp. equi is the causative agent of Strangles, which is one of the most costly and widespread infectious diseases, affecting the respiratory tract of Equidae. In this work, polyvinyl alcohol, alginate and chitosan were used in formulations of surface modified poly-epsilon-caprolactone microspheres which were evaluated after adsorption of S.equi enzymatic extract for physicochemical characteristics and in vivo immune responses in mice. After subcutaneous immunisation, the formulations induced higher lymphokines levels, in accordance with cellular and humoral immune responses, as compared to the free antigen, successfully activating the paths leading to Th1 and Th2 cells. The obtained results highlight the role of these microspheres as an adjuvant and their use to protect animals against strangles.
Collapse
Affiliation(s)
- H F Florindo
- iMED, Universidade de Lisboa, Avenida Professor Gama Pinto, 1649-003 Lisboa, Portugal
| | | | | | | | | |
Collapse
|
50
|
Abstract
Cotranscriptional RNA processing not only permits temporal RNA processing before the completion of transcription but also allows sequential recognition of RNA processing signals on nascent transcripts threading out from the elongating RNA polymerase II (RNAPII) complex. Rapid progress in recent years has established multiple contacts that physically connect the transcription and RNA processing machineries, which centers on the C-terminal domain (CTD) of the largest subunit of RNAPII. Although cotranscriptional RNA processing has been substantiated, the evidence for 'reciprocal' coupling starts to emerge, which emphasizes functional integration of transcription and RNA processing machineries in a mutually beneficial manner for efficient and regulated gene expression.
Collapse
Affiliation(s)
- Shatakshi Pandit
- Department of Cellular and Molecular Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0651, United States
| | | | | |
Collapse
|