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Dash M, Sachdeva S, Bansal A, Sinha A. Gametogenesis in Plasmodium: Delving Deeper to Connect the Dots. Front Cell Infect Microbiol 2022; 12:877907. [PMID: 35782151 PMCID: PMC9241518 DOI: 10.3389/fcimb.2022.877907] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 05/09/2022] [Indexed: 11/16/2022] Open
Abstract
In the coming decades, eliminating malaria is the foremost goal of many tropical countries. Transmission control, along with an accurate and timely diagnosis of malaria, effective treatment and prevention are the different aspects that need to be met synchronously to accomplish the goal. The current review is focused on one of these aspects i.e., transmission control, by looking deeper into the event called gametogenesis. In the Plasmodium life cycle, gametocytes are the first life forms of the sexual phase. The transmission of the parasite and the disease is critically dependent on the number, viability and sex ratio of mature gametocytes and their further development inside mosquito vectors. Gametogenesis, the process of conversion of gametocytes into viable gametes, takes place inside the mosquito midgut, and is a tightly regulated event with fast and multiple rounds of DNA replication and diverse cellular changes going on within a short period. Interrupting the gametocyte-gamete transition is ought to restrict the successful transmission and progression of the disease and hence an area worth exploring for designing transmission-blocking strategies. This review summarizes an in-depth and up-to-date understanding of the biochemical and physiological mechanism of gametogenesis in Plasmodium, which could be targeted to control parasite and malaria transmission. This review also raises certain key questions regarding gametogenesis biology in Plasmodium and brings out gaps that still accompany in understanding the spectacular process of gametogenesis.
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Affiliation(s)
- Manoswini Dash
- Parasite Host Biology, Indian Council of Medical Research (ICMR)-National Institute of Malaria Research, New Delhi, India
- Central Molecular Laboratory, Govind Ballabh (GB) Pant Institute of Postgraduate Medical Education and Research, New Delhi, India
| | - Sherry Sachdeva
- Parasite Host Biology, Indian Council of Medical Research (ICMR)-National Institute of Malaria Research, New Delhi, India
| | - Abhisheka Bansal
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Abhinav Sinha
- Parasite Host Biology, Indian Council of Medical Research (ICMR)-National Institute of Malaria Research, New Delhi, India
- *Correspondence: Abhinav Sinha,
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Sachdeva S, Sharma A, Flora SJS. MiADMSA abrogates sodium tungstate-induced oxidative stress in rats. Drug Chem Toxicol 2021; 45:2448-2453. [PMID: 34348527 DOI: 10.1080/01480545.2021.1957560] [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: 10/20/2022]
Abstract
Tungsten (W) and its compounds have emerged as a relatively new area of environmental health concern in the last decade. Tungsten is environmentally benign due to its increasing use in armour-piercing munitions and as a replacement for lead in other ammunition. It has also been identified in various hazardous waste sites and therefore been proposed for inclusion in the Environmental Protection Agency National Priorities List. The major objective of this study was to evaluate the therapeutic efficacy of orally administered monoisoamyl 2, 3-dimercaptosuccinic acid (MiADMSA) against tungstate induced oxidative injury in blood, liver and kidneys of male Wistar rats. MiADMSA, a thiol chelator has gained wide recognition recently as a future chelating drug of choice specifically for arsenic and was chosen for this study as tungstate ions too have an affinity toward the -SH group thus, being less bioavailable in the body. We determined the effects of MiADMSA (50 mg/kg, p.o.) against sodium tungstate (500 ppm in drinking water, daily for 28 days) induced biochemical changes indicative of oxidative stress in blood, and other soft tissues of of male Wistar rats. Tungsten exposure led to an increased levels of Reactive Oxygen Species (ROS) in liver, kidney, spleen and blood accompanied also by an increase in TBARS levels. The GSH: GSSG ratio also showed a decrease on sodium tungstate intoxication. Treatment with MiADMSA restored most of the sodium tungstate-induced alterations in the biomarkers suggestive of oxidative stress. These preliminary results led us to conclude that sub-acute exposure to tungstate-induced oxidative stress could be effectively reduced by the administration of MiADMSA and thus might be a promising antidote for studying in detail its efficacy in reducing body tungstate burden and its excretion post tungstate exposure.
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Affiliation(s)
- Sherry Sachdeva
- Division of Regulatory Toxicology, Defence Research and Development Establishment, Gwalior, India
| | - Ankita Sharma
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER-R), Lucknow, India
| | - S J S Flora
- Division of Regulatory Toxicology, Defence Research and Development Establishment, Gwalior, India.,Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER-R), Lucknow, India
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Sachdeva S, Maret W. Comparative outcomes of exposing human liver and kidney cell lines to tungstate and molybdate. Toxicol Mech Methods 2021; 31:690-698. [PMID: 34320920 DOI: 10.1080/15376516.2021.1956031] [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: 10/20/2022]
Abstract
Tungsten has no known function in humans and is a relatively new contaminant, whereas molybdenum, its congener in the periodic table, is a nutritionally essential element. In addition to early studies on molybdosis in ruminants, their toxic effects in the form of tungstate and molybdate have been addressed primarily in rodents and are predominantly mediated by inducing oxidative stress in various tissues. The purpose of this study was to evaluate the differences between tungstate and molybdate in human liver (HepG2) and kidney (HEK293) cell lines in terms of retention in cells, effect on reactive oxygen species, and activities of xanthine oxidase and phosphatases. The cell lines were exposed to tungstate or molybdate (1 µM to 10 mM) for 24 h, lysed and analyzed for the above biochemical parameters. Despite the chemical similarity of the two anions, cell-specific differential effects were observed. At all concentrations, tungstate was retained more in HEK293 cells while molybdate was retained more in HepG2 cells. HepG2 cells were more sensitive to tungstate than molybdate, showing reduced viability at concentrations as low as 10 µM. Exposure to either anion resulted in the inhibition of protein tyrosine phosphatases at 1 mM and an increased production of reactive oxygen species (ROS) at 100 µM despite their inhibition of the ROS-producing molybdenum enzyme xanthine oxidase. In conclusion, the results indicate that excess of nutritionally essential molybdate or non-essential tungstate causes toxicity by affecting ROS- and phosphorylation-dependent signaling pathways and ensuing gene expression.
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Affiliation(s)
- Sherry Sachdeva
- Division of Regulatory Toxicology, Defence Research Development Establishment, Gwalior, India
| | - Wolfgang Maret
- Department of Nutritional Sciences, Faculty of Life Sciences and Medicine, School of Life Course Sciences, King's College London, London, UK
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Sardana K, Mathachan SR, Sachdeva S, Khurana A. Is there a rationale for the use of voriconazole in dermatophytosis in the absence of mycological and mutational data? An urgent need for antifungal stewardship. Clin Exp Dermatol 2021; 46:1621-1623. [PMID: 34189762 DOI: 10.1111/ced.14824] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2021] [Indexed: 11/27/2022]
Affiliation(s)
- K Sardana
- Department of Dermatology, Venereology and Leprosy, ABVIMS and Dr Ram Manohar Lohia Hospital, New Delhi, India
| | - S R Mathachan
- Department of Dermatology, Venereology and Leprosy, ABVIMS and Dr Ram Manohar Lohia Hospital, New Delhi, India
| | - S Sachdeva
- Department of Dermatology, Venereology and Leprosy, ABVIMS and Dr Ram Manohar Lohia Hospital, New Delhi, India
| | - A Khurana
- Department of Dermatology, Venereology and Leprosy, ABVIMS and Dr Ram Manohar Lohia Hospital, New Delhi, India
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Hanna B, Desai R, Sachdeva S, Singh S, Gangani K, Taha Y, Echols M, Paul T, Berman A, Bloom H, Kumar G, Sachdeva R. Pulmonary artery injury in left atrial appendage closure device implantation: a systematic review of a potentially fatal complication. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0667] [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
Pulmonary artery (PA) injury is a rarely reported complication following percutaneous left atrial appendage closure (LAAC). This study aims to systematically review all reported cases of PA injury associated with LAAC.
Methods
PubMed/Medline, SCOPUS, EMBASE, Google Scholar and the MAUDE databases were searched to find studies reporting PA injury during or after LAAC with the Amplatzer Amulet (AA), Amplatzer Cardiac Plug (ACP) or Watchman device through October 2019. Categorical data were reported in terms of numbers and/or percentages (%).
Results
We found 13 cases (mean age 71.4 yrs) with reported PA injury associated with LAAC. Of these, 9 were case reports, 3 were reported in observational studies, and 1 was in the MAUDE database. Most cases (n=8) were reported in Europe followed by Australia (n=2) and Asia (n=2). The indication for device implantation in all patients was a high bleeding risk with anticoagulation for atrial fibrillation. Five cases were reported with the ACP (1/5 patients died), 5 with AA (2/5 patients died), and 3 with the Watchman (1/2 patients died). Acute and late presentations following implantation were reported for all three devices. 69.2% of cases (9/13) occurred acutely (during or within 24 hours of intervention). Of these, 3/9 occurred during device implantation. 2/4 of the delayed cases occurred >2 weeks following implantation. The mortality rate for acute and delayed cases was 22% (2/9 patients) and 50% (2/4 patients), respectively. A majority of the cases were attributable to barb/strut/hook injury of the PA. PA injury was associated with a mortality rate of approximately 31%. All surviving patients were managed with surgical intervention.
Conclusion
PA injury is an infrequently reported complication following LAAC and is associated with high mortality. Cases can present acutely (intra-procedurally or within 24 hours) or delayed (>24 hours post-implantation). A majority of cases are due to direct injury of the PA by the struts/hooks/barbs of the device. Practitioners should be cognizant of this life-threatening complication, which requires a high index of suspicion for diagnosis and can occur weeks after device implantation.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- B Hanna
- Morehouse School of Medicine, Atlanta, United States of America
| | - R Desai
- Atlanta Veterans Affairs Medical Center, Cardiology, Atlanta, United States of America
| | - S Sachdeva
- Lady Hardinge Medical College and Hospitals, Department of Medicine, New Delhi, India
| | - S Singh
- Amsterdam University Medical Center, Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam, Netherlands (The)
| | - K Gangani
- Texas Health Arlington Memorial Hospital, Department of Internal Medicine, Arlington, Texas, United States of America
| | - Y Taha
- Morehouse School of Medicine, Atlanta, United States of America
| | - M Echols
- Morehouse School of Medicine, Atlanta, United States of America
| | - T.K Paul
- East Tennessee State University, Division of Cardiology, Johnson city, Tennessee, United States of America
| | - A Berman
- Augusta University, Augusta, United States of America
| | - H Bloom
- Atlanta Veterans Affairs Medical Center, Cardiology, Atlanta, United States of America
| | - G Kumar
- Atlanta Veterans Affairs Medical Center, Cardiology, Atlanta, United States of America
| | - R Sachdeva
- Morehouse School of Medicine, Atlanta, United States of America
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Desai R, Sachdeva S, Singh S, Rajan S, Shaik A, Haider M, Fong H, Gangani K, Sachdeva R, Kumar G. Rates and causes of readmissions following index admissions for Takotsubo syndrome-a meta-analysis of 118,941 index hospitalizations. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1246] [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
Rising trends in takotsubo syndrome (TTS)-related complications warrant data to identify the rate, causes and predictors of readmission on a large scale. We conducted the first-ever meta-analysis to evaluate the pooled rate of short-term and long-term readmissions after index TTS admissions.
Methods
PubMed/Medline, EMBASE and SCOPUS databases were systematically reviewed to find studies through October 2019 reporting rates and causes of readmission following index TTS admissions. Random effects models were used to estimate pooled rates and causes of readmissions and I2 statistics were used to report inter-study heterogeneity.
Results
A total of 16 cohorts with 118,941 TTS index admissions (mean age 65–75 yrs; female >85%, median follow-up 272.5 days) revealed a 16.6% [95% CI-13.2%-20.3%, I2=99%] pooled rate of readmission. Short-term and long-term pooled readmission rates are displayed in Fig.1. The readmission rate was higher in cohorts with young patients (<70 vs. >70 yrs), smaller sample size (n<100 vs. n>100) and single-centres vs. multicentres. Studies published from the USA (16.4% vs. 14.9%) had a higher readmission rate as compared to Italy. The most frequent causes were cardiac (40.6%), respiratory (15.7%) and renal (7.0%). Among readmissions with cardiac diagnoses, heart failure was most common (40.1%).
Conclusions
This global meta-analysis revealed that the pooled rate of readmission following index TTS admissions was ∼17% and causes were mainly cardiac or respiratory.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- R Desai
- Atlanta Veterans Affairs Medical Centre, Division of Cardiology, Atlanta, United States of America
| | - S Sachdeva
- Lady Hardinge Medical college and hospitals, Delhi, India
| | - S Singh
- Amsterdam University Medical Center, Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam, Netherlands (The)
| | - S.K Rajan
- Medical City Plano, Department of Medicine, plano, Texas, United States of America
| | - A.S Shaik
- Silver Lane Medical Centre, Department of Medicine, East Hartford, Connecticut, United States of America
| | - M Haider
- New York-Presbyterian Hospital, Department of Internal Medicine, New York, United States of America
| | - H.K Fong
- UC Davis Medical Centre, Division of Cardiovascular Medicine, Sacramento, United States of America
| | - K Gangani
- Texas Health Arlington Memorial Hospital, Department of Internal Medicine, Arlington, Texas, United States of America
| | - R Sachdeva
- Morehouse School of Medicine, Atlanta VA Medical centre & Medical College of Georgia, Division of Cardiology, Augusta,Georgia, United States of America
| | - G Kumar
- Emory University & Atlanta VA Medical Centre, Division of Cardiology, Atlanta, Georgia, United States of America
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Sonika U, Sahu B, Dahale AS, Srivastava R, Saran RK, Sachdeva S. Gastrointestinal: Radiation proctitis: Or is it something else? J Gastroenterol Hepatol 2019; 34:1131. [PMID: 30693563 DOI: 10.1111/jgh.14592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 11/16/2018] [Accepted: 12/28/2018] [Indexed: 12/09/2022]
Affiliation(s)
- U Sonika
- Department of Gastroenterology, GB Pant Institute of Post Graduate Medical Education and Research, New Delhi, India
| | - B Sahu
- Department of Gastroenterology, GB Pant Institute of Post Graduate Medical Education and Research, New Delhi, India
| | - A S Dahale
- Department of Gastroenterology, GB Pant Institute of Post Graduate Medical Education and Research, New Delhi, India
| | - R Srivastava
- Department of Pathology, GB Pant Institute of Post Graduate Medical Education and Research, New Delhi, India
| | - R K Saran
- Department of Pathology, GB Pant Institute of Post Graduate Medical Education and Research, New Delhi, India
| | - S Sachdeva
- Department of Gastroenterology, GB Pant Institute of Post Graduate Medical Education and Research, New Delhi, India
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Serda M, Ware M, Newton J, Sachdeva S, Malarz K, Musioł R, Corr S, Wilson L, Curley S. PO-515 Novel water-solube [60]fullerene nanotherapeutic agent for pancreatic cancer treatment. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.530] [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] Open
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Srivastava S, Sharma BC, Puri AS, Sachdeva S, Jain L, Jindal A. Impact of completion of primary biliary procedure on outcome of endoscopic retrograde cholangiopancreatographic related perforation. Endosc Int Open 2017; 5:E706-E709. [PMID: 28791316 PMCID: PMC5546889 DOI: 10.1055/s-0043-105494] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 02/06/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND AND AIMS Perforation is one of the worst complications of therapeutic endoscopic retrograde cholangiopancreatography (ERCP). We aimed to study the epidemiology of ERCP related perforation and the impact of completion of intended procedure on the outcome of this complication. METHODS ERCP records from January 2007 to April 2012 were independently evaluated by two investigators for the occurrence of procedure related perforations. A total of 11 500 patients underwent therapeutic ERCP during the study period. The case records of 171 (1.5 %) patients with ERCP related perforations were reviewed to analyze the epidemiology and risk factors associated with poor outcome. RESULTS Of the 171 patients included in this study, the majority of perforations (n = 129, 75.4 %) were related to use of the needle-knife precut technique. Female gender (1.9 % vs 0.7 %, P < 0.001), age > 40 years (1.7 % vs 1.1 %, P < 0.01), and benign disease (1.7 % vs. 1.1 %, P < 0.01) were risk factors for ERCP related perforation. Most of the perforations (n = 135, 79 %) were detected during the procedure. The majority of patients were managed conservatively (n = 164, 96 %). Although 159 patients recovered, 12 patients (7 %) did not survive. Completion of intended biliary procedure for primary disease was associated with low risk of mortality (2 % vs 15.4 %, P < 0.001). CONCLUSIONS ERCP related perforation is uncommon. The majority of patients can be managed conservatively. The risk of mortality is low and completion of the intended biliary procedure decreases the risk of mortality.
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Affiliation(s)
- S. Srivastava
- Department of Gastroenterology, G.B. Pant Institute of Postgraduate Medical Education and Research, New Delhi, India,Corresponding author Dr S. Srivastava Room No. 210Academic BlockG.B. Pant Institute of Postgraduate Medical Education and Research1, Jawaharlal Nehru MargNew Delhi 110001India+91-11-23234242
| | - B. C. Sharma
- Department of Gastroenterology, G.B. Pant Institute of Postgraduate Medical Education and Research, New Delhi, India
| | - A. S. Puri
- Department of Gastroenterology, G.B. Pant Institute of Postgraduate Medical Education and Research, New Delhi, India
| | - S. Sachdeva
- Department of Gastroenterology, G.B. Pant Institute of Postgraduate Medical Education and Research, New Delhi, India
| | - L. Jain
- Department of Gastroenterology, G.B. Pant Institute of Postgraduate Medical Education and Research, New Delhi, India
| | - A. Jindal
- Department of Gastroenterology, G.B. Pant Institute of Postgraduate Medical Education and Research, New Delhi, India
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Saluja SS, Manipadam JM, Mishra PK, Sachdeva S, Solanki N, Shah H. Young onset colorectal cancer: How does it differ from its older counterpart? Indian J Cancer 2016; 51:565-9. [PMID: 26842197 DOI: 10.4103/0019-509x.175350] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND Colorectal cancer in the young has been a debated topic in literature with conflicting reports as to its pattern of occurrence and survival as compared to the older age group. MATERIALS AND METHODS Retrospective study to analyze the clinicopathological characteristics, treatment modalities and survival of sporadic young-onset colorectal cancer (YOCR) patients (<40 years) and compare them with the older group (>40 years). RESULTS Of 172 patients managed, 72 (42%) were in the YOCR group. Among 72 patients, six were excluded because of hereditary syndromes. Incontinence (P = 0.02) and obstruction at time of presentation (P = 0.03) was significantly more common in the YOCR group. Left sided disease was more common in YOCR group (47/66) compared to the older group (65/100), but the difference was not statistically significant (P = 0.45). The proportion of rectal cancers was significantly more in the YOCR group (39/47) compared to the older group (39/65) (P = 0.01). Significant difference in resectability was noted in the left sided (YOCR 26/47 vs. older 49/65 P = 0.04) and the rectal cancers (YOCR 18/39 vs. Older 29/39 P = 0.02). The survival was similar among the two groups. CONCLUSIONS Sporadic colorectal cancers in the young are more advanced and less resectable when compared to older population. Genetic studies are needed to elaborate the reasons for left sided predominance and aggressiveness of sporadic colorectal cancers in the younger subgroups.
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Affiliation(s)
| | | | - P K Mishra
- Department of Gastrointestinal Surgery, GB Pant Hospital, New Delhi, India
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Sabir H, Kumbhare S, Pande S, Sachdeva S, Gajbhiye N. Primary Ewing sarcoma of the coronoid process of mandible. J Ir Dent Assoc 2016; 62:167-172. [PMID: 27514181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Ewing sarcoma (ES) is a rare, primary malignancy of the bone that occurs mainly in childhood and early adolescence. ES usually occurs in long bones of the axial skeleton. Although uncommon in the jaws, ES at this site is most likely to occur in the posterior mandible. The outcome for patients with localised disease has improved over the decades, due to better combination chemotherapies and better methods of local control. We present the clinicopathologic features and management of a case of ES that developed in the left coronoid process of the mandible of a 31-year-old male. Chemotherapy and, later, a segmental mandibulectomy were used to achieve local control. A fibula-free flap repair was performed with good aesthetic results. This case elucidates the importance of the interdisciplinary approach required for the evaluation and treatment of this aggressive neoplasm.
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Soni A, Arivarasan K, Sachdeva S, Kumar A, Sakhuja P, Puri AS. Education and Imaging. Hepatobiliary and Pancreatic: Spontaneous bilioma secondary to ampullary cancer: a rare presentation. J Gastroenterol Hepatol 2016. [PMID: 26202225 DOI: 10.1111/jgh.13054] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- A Soni
- Department of Gastroenterology, GB Pant Hospital, New Delhi, India, 110002
| | - K Arivarasan
- Department of Gastroenterology, GB Pant Hospital, New Delhi, India, 110002
| | - S Sachdeva
- Department of Gastroenterology, GB Pant Hospital, New Delhi, India, 110002
| | - A Kumar
- Department of Gastroenterology, GB Pant Hospital, New Delhi, India, 110002
| | - P Sakhuja
- Department of Pathology, GB Pant Hospital, New Delhi, India, 110002
| | - A S Puri
- Department of Gastroenterology, GB Pant Hospital, New Delhi, India, 110002
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Sachdeva S, Pant SC, Kushwaha P, Bhargava R, Flora SJ. Sodium tungstate induced neurological alterations in rat brain regions and their response to antioxidants. Food Chem Toxicol 2015; 82:64-71. [DOI: 10.1016/j.fct.2015.05.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 05/06/2015] [Accepted: 05/07/2015] [Indexed: 01/01/2023]
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Kasat V, Saluja H, Ladda R, Sachdeva S, Somasundaram K, Gupta A. Knowledge, Attitude and Practices toward Post Exposure Prophylaxis for Human Immunodeficiency Virus among Dental Students in India. Ann Med Health Sci Res 2014; 4:543-8. [PMID: 25221701 PMCID: PMC4160677 DOI: 10.4103/2141-9248.139308] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND India has the third largest number of people living with human immunodeficiency virus (HIV) and thus, dental practitioners are more likely to encounter such patients for dental management. AIM The aim of the following study is to evaluate the knowledge, attitude and practice regarding post-exposure prophylaxis (PEP) for HIV among dental interns and post graduate (PG) students of a dental institution in India. SUBJECTS AND METHODS A cross-sectional study was conducted among 128 dental students (64 interns and 64 PG students). Data related to HIV PEP was collected by pre-designed, pre-tested, self-administered questionnaire and difference in responses by education level was assessed by Chi-square test and Z-test (significance level was set at P ≤ 0.05). For statistical analysis, Statistical Package for Social Sciences (SPSS version 16, Chicago IL, USA) was used. RESULTS Difference in responses between dental interns and PG students was not statistically significant for majority of questions. All participants had positive attitude toward HIV patients (98.4% [63/64] interns vs. 100% [64/64] PG students). Interns (68.8%, 44/64) and PG students (68.8%, 44/64) were equally aware of the concept of HIV PEP. PG students had better knowledge than dental interns on few questions but overall both of them lacked knowledge about the best timing for commencement of HIV PEP (20.4% [13/64] interns vs. 42.2% [27/64] PG students) (P < 0.01), the antiretroviral drug regimen (48.4% [31/64] interns vs. 43.7% [28/64] PG students) and its duration (23.4% [15/64] interns vs. 25.0% [16/64] PG students), timing of antibody testing to rule out infection to health care worker (23.4% [15/64] interns vs. 35.9% [23/64] PG students) (P = 0.04). CONCLUSION As knowledge regarding HIV PEP is found to be inadequate, well-designed educational programs need to be conducted to increase the understanding of dental professionals on this issue.
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Affiliation(s)
- Vo Kasat
- Department of Oral Medicine and Radiology, Rural Dental College, Loni, Maharashtra, India
| | - H Saluja
- Department of Oral and Maxillofacial Surgery, Rural Dental College, Loni, Maharashtra, India
| | - R Ladda
- Department of Prosthodontics, Rural Dental College, Loni, Maharashtra, India
| | - S Sachdeva
- Department of Periodontics, Government Dental College, Aurangabad, Maharashtra, India
| | - Kv Somasundaram
- Centre for Social Medicine, Pravara Institute of Medical Sciences, Loni, Maharashtra, India
| | - A Gupta
- Private Practioner, Delhi, India
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Sachdeva S, Flora SJS. Efficacy of some antioxidants supplementation in reducing oxidative stress post sodium tungstate exposure in male wistar rats. J Trace Elem Med Biol 2014; 28:233-239. [PMID: 24613855 DOI: 10.1016/j.jtemb.2014.01.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [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: 11/13/2013] [Revised: 01/06/2014] [Accepted: 01/28/2014] [Indexed: 11/24/2022]
Abstract
This study aimed to evaluate the protective efficacy of some antioxidants against sodium tungstate induced oxidative stress in male wistar rats. Animals were sub-chronically exposed to sodium tungstate (100ppm in drinking water) for three months except for control group. In the same time, many rats were supplemented orally with different antioxidants (alpha-lipoic acid (ALA), n-acetylcysteine (NAC), quercetin or naringenin (0.30mM)) for five consecutive days a week for the same mentioned period before. Exposure to sodium tungstate significantly (P<0.05) inhibit blood δ-aminolevulinic acid dehydratase (ALAD) activity, liver and blood reduced glutathione (GSH) levels and an increase in oxidized glutathione (GSSG) and thiobarbituric acid reactive species (TBARS) levels in tissues. ALA acid and NAC supplementation post sodium tungstate exposure increased GSH and also, was beneficial in the recovery of altered superoxide dismutase and catalase activity, besides, significantly reducing blood and tissue reactive oxygen species and TBARS levels. The results suggest a more pronounced efficacy of ALA acid and NAC supplementation than quercetin or naringenin supplementation post sodium tungstate exposure in preventing induced oxidative stress in rats.
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Affiliation(s)
- S Sachdeva
- Division of Regulatory Toxicology, Defence Research and Development Establishment, Jhansi Road, Gwalior 474 002, India
| | - S J S Flora
- Division of Regulatory Toxicology, Defence Research and Development Establishment, Jhansi Road, Gwalior 474 002, India.
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Szilágyi PÁ, Callini E, Anastasopol A, Kwakernaak C, Sachdeva S, van de Krol R, Geerlings H, Borgschulte A, Züttel A, Dam B. Probing hydrogen spillover in Pd@MIL-101(Cr) with a focus on hydrogen chemisorption. Phys Chem Chem Phys 2014; 16:5803-9. [DOI: 10.1039/c3cp54898h] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Abstract
Extra-pulmonary tuberculosis constitutes 15-20% of total tuberculosis (TB) case load in immuno-competent patients. Affliction of the skeletal system is rare with still rarer presentation of sternal osteomyelitis even in endemic countries. A patient with primary sternal TB presenting with multiple cutaneous sinuses over the anterior chest wall is being reported. A high element of suspicion is needed more so in resource limited setting for early diagnosis and treatment.
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Affiliation(s)
- R Sachdeva
- Department of TB and Respiratory Medicine, Pt. B.D. Sharma, PGIMS, Rohtak, India
| | - S Sachdeva
- Department of Community Medicine, Pt. B.D. Sharma, PGIMS, Rohtak, India
| | - S Arora
- Department of Anesthesia, Lady Harding Medical College, New Delhi, India
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Seshan V, Ullien D, Castellanos-Gomez A, Sachdeva S, Murthy DHK, Savenije TJ, Ahmad HA, Nunney TS, Janssens SD, Haenen K, Nesládek M, van der Zant HSJ, Sudhölter EJR, de Smet LCPM. Hydrogen termination of CVD diamond films by high-temperature annealing at atmospheric pressure. J Chem Phys 2013; 138:234707. [DOI: 10.1063/1.4810866] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sachdeva S, Nanda S, Sachdeva R. Comparative Analysis of Birth Weight in a Hospital Over a Decade: Low Birth Weight Still a Major Problem. J Nepal Paedtr Soc 2013. [DOI: 10.3126/jnps.v33i1.6176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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
Introduction: The objective of this study was to compare the magnitude of birth weight and proportion of low birth weight in a hospital over a decade. Materials and Methods: A descriptive study was undertaken in a public funded hospital catering to rural and urban population of northern India. Pertinent information was collected for all intramural singleton births using structured proforma for a sample period in a calendar year. For comparison purpose birth data was extracted from log books for the corresponding period of previous decade also. Data management was done using MS excel sheet and analysis carried out by computing descriptive statistics using software statistical package. Results: The mean (2568 + 596.7 gm) & median (2600 gm) birthweight recorded for 2011 was low in-comparison to 2657 + 581.7gm (2750 gm) for 2001. The prevalence of low birth weight (LBW) was 36.1% (2011) in comparison to 30.5% (2001) and the state of deterioration was found to be statistically significant (p<0.001). Higher proportion of LBW birth was observed amongst un-booked ANC, pre-term, anemic mothers and whose residence was from outside the district of location of study institute (<0.001). Statistically significant (<0.001) and higher perinatal mortality was noticed in LBW neonates. Rising level of maternal education was protective against LBW. Mothers with their first pregnancy gave higher proportion of LBW births in comparison to mothers with higher gravida status (<0.001). DOI: http://dx.doi.org/10.3126/jnps.v33i1.6176 J Nepal Paediatr Soc. 2013;33(1):15-20.
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Abstract
Impaction of primary anterior teeth is very rare. A tooth that fails to erupt into normal functional position by the time it normally should is considered impacted. A rare case of impacted dilacerated maxillary primary incisors in a 3-year-old child is presented. The diagnostic position of impacted primary incisors was determined using conical beam computed tomography (CBCT) to assist in surgical intervention with least surgical trauma to the tissues.
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Affiliation(s)
- A Sharma
- Department of Pedodontics and Preventive Dentistry, I.T.S Centre for Dental Studies and Research, Murad Nagar, Ghaziabad, Uttar Pradesh, India.
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Sachdeva S, Amin SS, Qaisar S. Type 2 lepra reaction with HIV1 co-infection: a case report with interesting management implications. Indian J Lepr 2011; 83:103-106. [PMID: 21972664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A patient co-infected with leprosy and Human Immunodeficiency Virus (HIV)-type 1 who developed type 2 lepra reaction in the absence of antiretroviral therapy is presented. The reaction responded only after initiating anti retroviral therapy (ART) despite normal CD4+ counts. The present report suggests that type 2 reactions in leprosy and HIV co-infected patients may not always be the typical manifestation of immune reconstitution inflammatory syndrome (IRIS) and stresses the importance of considering concomitant HIV infection in refractory lepra reactions. Extensive research is required into the manifestations of HIV in leprosy patients.
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Affiliation(s)
- S Sachdeva
- Department of Dematology, Venereology and Leprology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh-202 002, India.
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Jayachandran S, Sachdeva S. Cemento-ossifying Fibroma of Mandible: Report of Two Cases. J Indian Acad Oral Med Radiol 2010. [DOI: 10.4103/0972-1363.166908] [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: 02/25/2023] Open
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Chhabra HS, Lima C, Sachdeva S, Mittal A, Nigam V, Chaturvedi D, Arora M, Aggarwal A, Kapur R, Khan TAH. Erratum: Autologous olfactory mucosal transplant in chronic spinal cord injury: an Indian Pilot Study. Spinal Cord 2009. [DOI: 10.1038/sc.2009.109] [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: 11/09/2022]
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Chhabra HS, Lima C, Sachdeva S, Mittal A, Nigam V, Chaturvedi D, Arora M, Aggarwal A, Kapur R, Khan TAH. Autologous mucosal transplant in chronic spinal cord injury: an Indian Pilot Study. Spinal Cord 2009; 47:887-95. [DOI: 10.1038/sc.2009.54] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Alao A, Chung C, Sachdeva S. Treatment of Chronic Pain with Buprenorphine in a Veteran with Traumatic Brain Injury. Eur Psychiatry 2009. [DOI: 10.1016/s0924-9338(09)70757-6] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Case presentation:We report a case of a 27-year-old Iraq War veteran with no previous psychiatric history who sustained severe traumatic brain injury (TBI) following a blast injury from an improvised explosive device. The patient subsequently suffered severe anxiety symptoms controlled only with combined therapy with benzodiazepines and venlafaxine. Even more disabling, the patient also experienced intractable headache and shoulder pain unresponsive to non-steroidal anti-inflammatory agents, tramadol, gabapentin, or NMDA-receptor antagonists. Given the risk of respiratory depression with his current medications, opioid analgesics were not favored for the management of his pain. The patient was started on sublingual buprenorphine at a dose of 8mg three times daily with significant improvement. This dose was maintained and the patient was able to function relatively pain-free.Conclusion:Chronic pain is a significant complication in patients with TBI and is reported by a majority of patients with TBI, regardless of the severity of the injury. The treatment of chronic pain among individuals can be challenging. Patients with TBI may be on other medications for impulse control, such as anticonvulsants and benzodiazepines. Further treatment with narcotic analgesics may therefore increase the risk of respiratory depression. Buprenorphine is a partial mu agonist whose effects plateau at higher doses, at which time it begins to act like an antagonist. It is this property at higher doses that limits its dose-dependent respiratory depression. Buprenorphine thus has the advantage of effective analgesia with minimal sedation and may be useful to treat chronic pain among TBI patients already taking benzodiazepines.
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Bhandari SK, Ravindranath T, Sachdeva S, Gurlhosur S, Bhasin SS. Implant retained, tooth and mucosa supported mandibular overdenture. J Indian Prosthodont Soc 2006. [DOI: 10.4103/0972-4052.30698] [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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Sachdeva S, Ghoshal UC, Saraswat VA, Das K, Misra A. Gastroduodenal dysmotility in patients with gallbladder carcinoma: frequency of occurrence and clinical importance. Natl Med J India 2006; 19:4-9. [PMID: 16570677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
BACKGROUND Gastric stasis, common in patients with gall-bladder carcinoma (GBC), results from anatomical obstruction or motor abnormalities. We studied patients with GBC for antroduodenal motor dysfunction using manometry. METHODS Forty-one patients with GBC without endoscopic gastric outlet obstruction and 10 healthy controls were evaluated using a symptom scoring system for gastric stasis, saline load test and water perfusion antroduodenal manometry. Fasting, post-prandial and post-octreotide motility were recorded and analysed on a computer using GiPC manometry software. RESULTS Sixteen of 41 patients (39%) with GBC reported recurrent vomiting; patients with vomiting had a higher symptom score (13 [11-17] v. 6 [4-10], p<0.0001] and higher volume of aspirate on the saline load test (460 ml [210-650] v. 160 ml [70-260], p<0.0001) as compared with those without vomiting. Healthy subjects more often had spontaneous fasting migratory motor complex than patients with GBC (9/10 v. 13/41, p=0.002). The amplitudes of contractions in the antrum and duodenum were significantly lower in patients with GBC than in healthy subjects. Patients with GBC had lower fasting (157 [68-284] v. 190.5 [150-284], p=0.01) and post-prandial (200 [96-395] v. 284 [178-395], p<0.0001) antral motor indices than healthy subjects. Patients with GBC and vomiting had significantly lower contraction amplitude and motility indices than those without vomiting. Motility indices correlated inversely with the symptom score and volume of aspirate on the saline load test (Spearman correlation, p = 0.01 for all). CONCLUSION Antroduodenal motor abnormalities are common in patients with GBC. These may explain the symptoms of gastric stasis and abnormal results of the saline load test in the absence of anatomical obstruction in such patients.
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Affiliation(s)
- S Sachdeva
- Department of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
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Sachdeva A, Sachdeva S, Mohan R, Pruthi PK, Gupta S, Dhawan S, Vineeta J, Yadav SP, Singh N. Late effects: Ten years long term follow up of pediatric oncology patients - From nihilism to cautious optimism. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.8568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | | | - R. Mohan
- Sir Ganga Ram Hospital, Delhi, India
| | | | - S. Gupta
- Sir Ganga Ram Hospital, Delhi, India
| | - S. Dhawan
- Sir Ganga Ram Hospital, Delhi, India
| | | | | | - N. Singh
- Sir Ganga Ram Hospital, Delhi, India
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Yadav KK, Rohatgi A, Sharma SK, Kulshrestha M, Sachdeva S, Pardasani V. Oculomotor palsy associated with hepatitis E infection. J Assoc Physicians India 2002; 50:737. [PMID: 12186141] [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] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Affiliation(s)
- K K Yadav
- Department of Medicine, Lady Hardinge Medical College, New Delhi
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Abstract
UNLABELLED This article reports the findings of a 3-year epidemiological survey for dementia in an urban community-resident population in Mumbai (Bombay), India, wherein the prevalence of all types of dementia was determined. METHOD The study was conducted in three stages. Stage 1: From a potential pool of 30,000 subjects aged 40 years or more, 24,488 (male = 11,875; female = 12,613) persons completed self-report or interviewer-rated protocols based on the Sandoz Clinical Assessment Geriatric Scale, but 5,512 (18.37%) persons refused to participate. Scores on the protocol had a possible range from 0 through 34. Stage 2: Persons with a score +2 SD above the mean were selected in this stage where the persons were screened for cognitive functioning using a modified and translated version of the Mini-Mental State Examination. Individuals who scored below the 5th percentile were included in Stage 3 and underwent a detailed neurological, psychiatric, and neuropsychological evaluation as well as hematological, radiological, electrocardiographic, and electroencephalographic investigations. Diagnoses were made jointly by a neurologist, psychiatrist, and psychologist using the DSM-IV diagnostic criteria. Subjects were also rated on the Clinical Dementia Rating (CDR) scale and assessed for activities of daily living. RESULTS One hundred five subjects with dementia (CDR > or = 0.5) were identified in this population of 24,488 persons. The prevalence rate for dementia in those aged 40 years and more was 0.43% and for persons aged 65 and above was 2.44%. Seventy-eight individuals had a CDR of > or = 1 yielding an overall prevalence rate of 0.32%, and a prevalence rate of 1.81% for those aged 65 years and older. The overall prevalence rate for Alzheimer's disease (AD) in the population was 0.25%, and 1.5% for those aged 65 years and above. AD (n = 62; 65%) was the most common cause of dementia followed byvascular dementia (n = 23; 22%). There were more women (n = 38) than men (n = 24) in the AD group. Increasing age was associated with a higher prevalence of the dementia syndrome in general as well as AD specifically. CONCLUSION In the population surveyed, the prevalence of AD and other dementias is less than that reported from developed countries but similar to results of other studies in India. Prevalence of the dementia syndrome increased with age and was not related to gender. AD was the most common dementia and the prevalence was higher in women than in men. Results are discussed with respect to shorter life expectancy, relocation of affected persons, and differences in the risk factors as compared to developed countries.
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Affiliation(s)
- C J Vas
- Dementia Research and Services Group, Holy Family Medical Research Society, Mumbai (Bombay), India
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Rohatgi A, Sachdeva S, Kulshrestha M. An unusual clinical presentation of cobalamine deficiency. J Assoc Physicians India 2001; 49:496. [PMID: 11762639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
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Dasgupta N, Kapur V, Singh KK, Das TK, Sachdeva S, Jyothisri K, Tyagi JS. Characterization of a two-component system, devR-devS, of Mycobacterium tuberculosis. Tuber Lung Dis 2001; 80:141-59. [PMID: 10970762 DOI: 10.1054/tuld.2000.0240] [Citation(s) in RCA: 154] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
By subtractive hybridization, we isolated genes, differentially expressed in virulent strain (dev), that are expressed at higher levels in the virulent Mycobacterium tuberculosis H37Rv strain in comparison to its avirulent counterpart, H37Ra, and consequently may be associated with the virulence phenotype of M. tuberculosis. A two-component system, devR-devS, was identified by DNA sequencing of a dev clone. DevR, the predicted gene product of devR, is a response regulator (RR) in the NarL/ UhpA subfamily of two-component systems. The devS gene product displayed homology with histidine protein kinases (HPKs) including UhpB, NarX and NarQ. The devR-devS locus is preceded by gene Rv3134c that encodes a putative alanine-aline- rich protein. This locus was conserved in M. tuberculosis and M. bovis BCG but not in other mycobacteria. A devR -lacZ transcription fusion demonstrated beta-galactosidase activity in M. smegmatis and in M. tuberculosis. The devR and devS genes were cotranscribed and the levels of their transcripts were lower in two isolates of the avirulent H37Ra strain in comparison to the virulent H37Rv strain of M. tuberculosis. The level of DevR protein was also lower in one of the H37Ra strains in comparison to the H37Rv strain. However, in a third isolate of H37Ra, RNA and protein expression was equivalent to that in the H37Rv strain. Electron microscopic immunogold analysis of M. tuberculosis grown in laboratory medium and within human monocytes revealed specific labelling for DevR protein within the bacteria and the phagosomal lumen of infected monocytes. These findings collectively suggest a potential role for devR-devS in the regulation of genetic programmes unique to the tubercle bacillus.
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Affiliation(s)
- N Dasgupta
- Department of Biotechnology, All India Institute of Medical Sciences, New Delhi, India
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Rohatgi A, Kulshrestha M, Sachdeva S. Familial parkinsonism with peripheral neuropathy. J Assoc Physicians India 2000; 48:752-3. [PMID: 11273520] [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] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Affiliation(s)
- A Rohatgi
- Department of Medicine, Lady Hardinge Medical College, New Delhi 110 001
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Abstract
OBJECTIVE To estimate the training load of specific on court training regimens based on the magnitude of variation of heart rate-lactate response during specific training and to determine the magnitude of variation of biochemical parameters (urea, uric acid, and creatine phosphokinase (CPK)) 12 hours after the specific training programme so as to assess training stress. METHODS The study was conducted on six national male badminton players. Maximum oxygen consumption (VO2), ventilation (VE), heart rate, and respiratory quotient were measured by a protocol of graded treadmill exercise. Twelve training sessions and 35 singles matches were analysed. Heart rate and blood lactate were monitored during technical training routines and match play. Fasting blood samples collected on two occasions--that is, during off season and 12 hours after specific training--were analysed for serum urea, uric acid, and CPK. RESULTS Analysis of the on court training regimens showed lactate values of 8-10.5 mmol/l in different phases. The percentage of maximum heart rate ranged from 82% to 100%. Urea, uric acid, and CPK activity showed significant changes from (mean (SD)) 4.93 (0.75) mmol/l to 5.49 (0.84) mmol/l, 0.23 (0.04) to 0.33 (0.06) mmol/l, and 312 (211.8) to 363 (216.4) IU/l respectively. CONCLUSION Maximum lactate reported in the literature ranges from 3-6 mmol/l. Comparatively high lactate values and high percentage of maximum heart rate found in on court training show a considerable stress on muscular and cardiovascular system. The training load needs appropriate monitoring to avoid over-training. Workouts that are too intensive may interfere with coordination, a factor that is important in sports requiring highly technical skill such as badminton.
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Affiliation(s)
- P Majumdar
- Sports Authority of India, Netaji Subhas Southern Centre, Bangalore, India
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Grover V, Usha R, Kalra S, Sachdeva S. Altered fetal growth: antenatal diagnosis by symphysis-fundal height in India and comparison with western charts. Int J Gynaecol Obstet 1991; 35:231-4. [PMID: 1677627 DOI: 10.1016/0020-7292(91)90291-c] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Antenatal identification of altered fetal growth is a significant problem in spite of the availability of sophisticated technology. The present study was undertaken to generate symphysis-fundal height curves locally for an Indian population and to assess their value in predicting altered fetal growth. The measurements were found to have a high sensitivity of 80.8% and specificity of 93.5% in detection of small for date babies and a sensitivity and specificity of 72.2% and 95.2%, respectively in detection of fetal macrosomia. The locally generated symphysis-fundal height charts have been compared with the western charts and the differences stressed. It is concluded that symphysis-fundal height curves should be locally generated for best results.
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Affiliation(s)
- V Grover
- Department of Obstetrics and Gynaecology, Lady Hardinge Medical College, New Delhi, India
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Chopra P, Narula J, Kumar AS, Sachdeva S, Bhatia ML. Immunohistochemical characterisation of Aschoff nodules and endomyocardial inflammatory infiltrates in left atrial appendages from patients with chronic rheumatic heart disease. Int J Cardiol 1988; 20:99-105. [PMID: 3042638 DOI: 10.1016/0167-5273(88)90319-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [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] [Indexed: 01/03/2023]
Abstract
Fifty left atrial appendages collected fresh during closed mitral valvotomy in patients with chronic rheumatic heart disease, were analysed to determine the frequency of Aschoff nodules and characteristics of mononuclear inflammatory infiltration. Fifty-six percent of specimens demonstrated Aschoff nodules with no clinical or laboratory evidence of acute rheumatic activity in the patients undergoing surgery. Endomyocardial infiltration contained predominantly T cells and occasionally B cells. The relative proportions of T helper-inducer, T suppressor-cytotoxic lymphocytes and macrophages were 45.1 +/- 7.6, 23.5 +/- 4.8 and 29.3 +/- 9.6%, respectively. Frequent presence of Aschoff nodules and heavy mononuclear infiltrates in chronic rheumatic heart disease suggests a possibility of subclinical ongoing carditis.
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Affiliation(s)
- P Chopra
- Department of Pathology and Cardiology, All India Institute of Medical Sciences, New Delhi
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Basuray R, Rawlins RG, Radwanska E, Henig I, Sachdeva S, Tummon I, Binor Z, Dmowski WP. High progesterone/estradiol ratio in follicular fluid at oocyte aspiration for in vitro fertilization as a predictor of possible pregnancy. Fertil Steril 1988; 49:1007-11. [PMID: 3131157 DOI: 10.1016/s0015-0282(16)59952-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Eighteen women undergoing in vitro fertilization (IVF) procedures were studied. All had optimal (900 to 1600 pg/ml) peak serum estradiol (E2) response to the same stimulation regimen with clomiphene citrate and menotropins; fertilization rate was above 64%; and two to four embryos in two to eight cell stages were replaced in each patient. All were considered to have optimal chances for conception. The authors compared progesterone (P), E2, and P/E2 ratio in serum and follicular fluid (FF) at the time of oocyte aspiration in eight patients who conceived (group I) and ten who did not (group II). Mean serum P and E2 levels and serum P/E2 ratio were not significantly different between the groups. In contrast, mean FF P concentrations (ng/ml) were significantly (P less than 0.05) higher in group I (9721 versus 5385), as was FF P/E2 ratio (19.0 versus 11.8; P less than 0.02). There was no significant difference in mean FF E2 concentrations between the groups. These data indicate that in IVF cycles with optimal serum E2 response to the stimulation protocol, FF P and P/E2 ratio at the time of oocyte aspiration may be predictive of subsequent implantation and pregnancy.
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Affiliation(s)
- R Basuray
- Department of Obstetrics and Gynecology, Rush Medical College, Chicago, Illinois 60612
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Chandra M, Golani DD, Sachdeva S, Bihari N, Sharma DK. Autoantibodies to intermediate filaments in acute viral hepatitis. Indian J Med Res 1986; 84:247-51. [PMID: 3817924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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Chandra M, Aggarwal S, Sachdeva S, Nayar M, Nayar VL. Humoral immune response in women using intrauterine contraceptive device. Indian J Med Res 1986; 83:13-8. [PMID: 3699864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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Chandra M, Saxena VK, Chander S, Sachdeva S, Saxena HM, Ghosh D. The effects of radiotherapy on immune status in carcinoma of the uterine cervix. INDIAN J PATHOL MICR 1986; 29:37-43. [PMID: 3491047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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Saxena VK, Chander S, Chandra M, Sachdeva S, Ghosh D, Saxena HM. A study of T lymphocyte population in cancer of the cervix. Effects of pelvic irradiation. Indian J Cancer 1985; 22:173-7. [PMID: 3879909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Narasimharao KL, Sachdeva S, Narang A, Mitra SK, Pathak IC. Perforation of pharynx mimicking esophageal atresia. Indian Pediatr 1985; 22:538-40. [PMID: 3938778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Ayyagari A, Kaur P, Sachdeva S, Kumar L. Meningitis due to beta lactamase producing type 'b' Hemophilus influenzae resistant to chloramphenicol in India--a case report. Indian J Pediatr 1984; 51:615-7. [PMID: 6336084 DOI: 10.1007/bf02776634] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Abstract
Salivary secretions on mechanical stimulation with forced spitting method and on chemical simulation with 10% citric acid and gastric acid secretions on maximal histamine stimulation were studied in 20 adults with tropical sprue and 20 adult control subjects. It was observed that the chemical method provided a better stimulus than the mechanical one in both groups. The salivary flow rates as well as salivary amylase, pH, sodium and potassium were similar in both groups. Tropical sprue patients, however, had significantly lower maximal acid output as compared to normals. It was concluded that, although tropical sprue patients are known to have widespread damage to alimentary tract mucosa, salivary glands do not seem to be involved.
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