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Dua D, Pranavan G, Choudhry M. EVALUATION OF 2-YEAR OUTCOMES OF COLORECTAL CANCER PATIENTS BEING MANAGED BY COMBINED GERIATRIC ONCOLOGY CLINIC AT A TERTIARY AUSTRALIAN HOSPITAL. J Geriatr Oncol 2019. [DOI: 10.1016/s1879-4068(19)31172-5] [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: 10/25/2022]
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Singh S, Bakshi J, Vir D, Dua D. Repetitive transcranial magnetic stimulation (rTMS) in patients with tinnitus: a case series. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.288] [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: 11/16/2022] Open
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Sharma T, Dua D, Saini N, Singh MK, Singla SK, Palta P, Manik RS, Alam A, Chauhan MS. 34 PRODUCTION OF TRANSGENIC CLONED BUFFALO EMBRYOS CONTAINING OVEREXPRESSED STEAROYL Co-A DESATURASE GENE FOLLOWING EFFICIENT TRANSFECTION. Reprod Fertil Dev 2017. [DOI: 10.1071/rdv29n1ab34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Stearoyl-CoA desaturase (SCD) is a rate-limiting enzyme that catalyses the synthesis of monounsaturated fatty acids and polyunsaturated fatty acids from saturated fatty acids, which are components of triglycerides, wax esters, cholesteryl esters, and membrane phospholipids. Alterations in phospholipid composition have been implicated in a variety of diseases including obesity and the associated metabolic syndrome. SCD also magnifies the conjugated linoleic acid (CLA) content in milk; CLA is a natural fat element, having reputed therapeutic health values including anti-carcinogenic properties. In light of this fact, this study was designed to amplify the levels of SCD at the gene level. In order to achieve the enhanced expression of SCD gene, combination of techniques were used. The somatic cells (fetal fibroblast) culture were established from ear pinnae obtained from bovine fetus procured from the abattoir and were cultured in basal medium, comprising DMEM with 10% fetal bovine serum, 1X NEAA and 1X PS antibiotics. These isolated cultured cells were transfected with a gene construct carrying buSCD gene (pAcGFPN1-buSCD) as BLGP-buSCD-BLG3′UTR-CMVP-EGFP-SV40. The buffalo fetal fibroblast cells were transfected using 3 methods: Nucleofection, Fugene and Lipofection. The successful transfection, as confirmed by PCR and Southern hybridisation, proved Nucleofection to be more efficient in transfecting cells among the techniques used, which were further maintained and selected by Geneticin (G418). These selected transfected cells were then used for nuclear transfer. Somatic cell nuclear transfer (SCNT) has provided an efficient pathway for the production of transgenic animals. Buffalo cumulus–oocyte complexes (COCs) were collected from ovaries collected from abattoir and matured in TCM-199 supplemented with 10% FBS, 5 µg mL−1 FSH, and 1 µg mL−1 β-oestradiol for 21 h in CO2 incubator at 5% CO2 in air and 38.5°C temperature with >95% relative humidity. After 21 h, these COCs were denuded and subjected to zona removal. These zona-free oocytes were manually enucleated using microsurgical blades and 2 enucleated oocytes were fused with a transgenic cell using electro cell manipulator. Further, these reconstructed embryos were activated using calcium ionophore and cultured in IVC media thereafter for 8 days. The developmental competence rate as recorded on Day 8 was 53.26 ± 1.73%, 69.87 ± 6.24%, 62.99 ± 7.15%, 42.71 ± 5.05% and 28.00 ± 3.33% for 2-cell, 4-cell, 8–16 cell, morula, and blastocyst, respectively. When observed under fluorescence microscope, the embryos showed successful expression of GFP, which can be further used for animal production or further research analysis. In conclusion, amplified SCD at gene level will result in a boost to the dairy sector as well ameliorating human health due to its crucial role in anti-cancer, anti-diabetic, reduced cardio-vascular disease, and improved immune responses.
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Roshan M, Dua D, Saini N, Sharma A, Sharma T, Singh MK, Singla SK, Palta P, Manik RS, Chauhan MS. 151 EFFECT OF ASCORBIC ACID ON OXIDATIVE STRESS AND ITS THERMOPROTECTANT ROLE ON IN VITRO EMBRYONIC DEVELOPMENT OF BUFFALO (BUBALUS BUBALIS) EMBRYOS. Reprod Fertil Dev 2017. [DOI: 10.1071/rdv29n1ab151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The most important factors that lead to stress in farm animals are oxidative and thermal stress, leading to reduced reproductive efficiency. Oxidative stress leads to an increase in proportion of reactive oxygen species, whereas heat stress affects the physiology of animals, which lowers the conception rates of dairy cattle. In vitro culture systems have been enhanced by manipulating media with various supplements such as vitamins, growth factors, and antioxidants that have overcome these problems. Ascorbic acid has been shown to play an antioxidant role in many species such as sheep, goat, and pigs. Keeping this in mind, this study was conducted to investigate the effect of supplementation of in vitro-matured (IVM) and/or in vitro-cultured (IVC) media with ascorbic acid and evaluate its antioxidant role in in vitro development of buffalo embryos. Immature oocytes were collected from visible surface follicles (2 to 8 mm in diameter) in slaughterhouse buffalo ovaries and subjected to IVM, IVF, and IVC in a humidified CO2 incubator at 38.5°C. Ascorbic acid was supplemented to IVM [TCM-199 + 10% featl bovine serum (FBS) + 1 µg mL−1 oestradiol-17β + 5 µg mL−1 pFSH + 0.81 mM sodium pyruvate + 0.68 mM l-glutamine + 50 µg mL−1 gentamicin sulfate] at 50 or 100 µM or IVC (mCR2aa + 0.6% BSA + 10% FBS+ 50 µg mL−1 gentamicin sulfate) at 50 µM or both IVM and IVC media at 50 µM. Oocytes without ascorbic acid were treated as the control group. Cleavage and blastocyst rate was improved when 50 µM (66.67 ± 2.27; 16.67 ± 1.26%) ascorbic acid was supplemented to IVM medium but no significant difference (P < 0.05) was observed at 100 µM (54.04 ± 2.20; 6.16 ± 0.37%) as compared with the control (62.77 ± 2.71; 10.67 ± 0.24%), respectively. When 50 µM ascorbic acid was supplemented in IVM, IVC, or both media, though cleavage rate (66.67 ± 2.27; 69.09 ± 3.22; 66.67 ± 2.23%) was similar in 3 groups, a significant increase was observed in blastocyst rate (16.67 ± 1.26; 20.18 ± 0.86; 28.57 ± 0.37%) when both media were supplemented, respectively. To evaluate the thermoprotectant effect, 4 groups were taken: group 1 without and group 2 with ascorbic acid supplementation, oocytes were given heat treatment at 39.5°C initially for 12 h during IVM; group 3 without and group 4 with ascorbic acid supplementation, oocytes were given heat treatment at 40.5°C initially for 12 h during IVM. No significant difference in developmental rate was observed at elevated temperature of 39.5°C or 40.5°C as compared with the control. Relative mRNA abundance of heat stress-related genes, HSP 70.1 and HSP 70.2, was nonsignificantly higher in oocytes matured at 39.5°C or 40.5°C after supplementation with ascorbic acid as compared to control. Relative mRNA abundance of BAX decreased at 50 µM and increased at 100 µM ascorbic acid compared with control, whereas BID showed similar results between control and treatment. Regarding anti-apoptotic gene expression, significantly higher expression was observed in MCL1 for 50 µM and lower for 100 µM ascorbic acid, and a similar nonsignificant trend was observed for BCL-XL. Developmental genes GDF9 and BMP15 showed a nonsignificant increase in 50 µM, and a nonsignificant decrease in the 100 µM supplemented group as compared with the control. Oxidative stress-related genes SOD and GPX showed a nonsignificant decrease in treated groups as compared to control. From above results, it was concluded that ascorbic acid had an anti-oxidant as well as thermoprotectant role in developmental competence that increased the potential for generation of large domestic animal in vitro embryos for research and applied technologies such as cloning and transgenesis.
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Plummer R, Dua D, Cresti N, Suder A, Drew Y, Prathapan V, Stephens P, Thornton J, Heras B, Ink B, Lee L, Matijevic M, McGrath S, Sarker D. Phase 1 Study of the Parp Inhibitor E7449 As a Single Agent in Patients with Advanced Solid Tumors or B-Cell Lymphoma. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu331.13] [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: 11/12/2022] Open
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Khan F, Ottensmeier C, Popat S, Dua D, Dorey N, Ellis S, Szabo M, Upadhyay S, Califano R, Chan S, Lee L, Ali CW, Nicolson M, Bates AT, Button M, Chaudhuri A, Mulvenna P, Shaw HM, Danson SJ. Afatinib use in non-small cell lung cancer previously sensitive to epidermal growth factor receptor inhibitors: the United Kingdom Named Patient Programme. Eur J Cancer 2014; 50:1717-1721. [PMID: 24726055 DOI: 10.1016/j.ejca.2014.03.001] [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] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 02/26/2014] [Accepted: 03/02/2014] [Indexed: 01/08/2023]
Abstract
INTRODUCTION Afatinib prolongs progression-free survival (PFS) in patients with non-small cell lung cancer (NSCLC) who were previously sensitive to erlotinib or gefitinib. This study investigated experience of afatinib under a Named Patient Use (NPU) programme. PATIENTS AND METHODS Retrospective data for 63 patients were collected, including demographics, dose, toxicity and clinical efficacy. RESULTS Response rate and median PFS were 14.3% and 2.6months, respectively. Diarrhoea and rash were the most common toxicities; 46% of patients required a dose reduction and 41% had a dose delay. CONCLUSIONS Efficacy and safety in the NPU programme are consistent with the LUX-Lung 1 trial.
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Affiliation(s)
- F Khan
- Academic Unit of Clinical Oncology, Weston Park Hospital, Sheffield S10 2SJ, United Kingdom
| | - C Ottensmeier
- Southampton NIHR Experimental Cancer Medicine Center and Southampton University Hospitals NHS Foundation, Southampton SO16 6YD, United Kingdom
| | - S Popat
- Royal Marsden Hospital, London SW3 6JJ, United Kingdom
| | - D Dua
- Guy's and St. Thomas' NHS Foundation Trust, London SE1 9RT, United Kingdom
| | - N Dorey
- Royal Devon and Exeter NHS Foundation Trust, Exeter EX2 5DW, United Kingdom
| | - S Ellis
- Royal Bournemouth Hospital, Bournemouth BH7 7DW, United Kingdom
| | - M Szabo
- Southampton NIHR Experimental Cancer Medicine Center and Southampton University Hospitals NHS Foundation, Southampton SO16 6YD, United Kingdom
| | - S Upadhyay
- Hull and East Yorkshire Hospitals NHS Trust, Hull HU16 5JQ, United Kingdom
| | - R Califano
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester M20 4BX, United Kingdom
| | - S Chan
- Harrogate and District NHS Foundation Trust, Harrogate HG2 7SX, United Kingdom
| | - L Lee
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester M20 4BX, United Kingdom
| | - C W Ali
- Beatson West of Scotland Cancer Centre, Glasgow G12 0YN, United Kingdom
| | - M Nicolson
- Aberdeen Royal Infirmary, Aberdeen AB25 2ZN, United Kingdom
| | - A T Bates
- Southampton NIHR Experimental Cancer Medicine Center and Southampton University Hospitals NHS Foundation, Southampton SO16 6YD, United Kingdom
| | - M Button
- Velindre Cancer Centre, Cardiff CF14 2TL, United Kingdom
| | - A Chaudhuri
- United Lincolnshire Hospitals NHS Trust, Lincoln LN2 5QY, United Kingdom
| | - P Mulvenna
- Newcastle upon Tyne NHS Foundation Trust, Newcastle NE7 7DN, United Kingdom
| | - H M Shaw
- University College London Hospitals NHS Foundation Trust, London NW1 2PG, United Kingdom
| | - S J Danson
- Academic Unit of Clinical Oncology, Weston Park Hospital, Sheffield S10 2SJ, United Kingdom.
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Gao F, Dua D, Pfeifer E, Farah H, Tobal K, Cane P, Spicer J, McCaughan F. 6 Microdroplet digital PCR in detecting mutational events in cell-free DNA in patients with lung cancer – a pilot study. Lung Cancer 2014. [DOI: 10.1016/s0169-5002(14)70007-8] [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: 11/24/2022]
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Abstract
BACKGROUND Regular contraceptive use and emergency contraception are tools to prevent pregnancies. AIMS This study was designed to investigate knowledge and use of contraceptive methods and awareness of emergency contraception among women working in the hospital. SETTINGS Educated workingwomen in a medical college hospital. DESIGN Cross-sectional study. MATERIALS AND METHODS The study was carried out among women belonging to three categories: staff nurses, ministerial staff and others. Married as well as unmarried employees in the reproductive age group were interviewed. A pretested mixed questionnaire containing open as well as closed ended questions was administered. The women were asked questions concerning knowledge and use of contraceptive methods and awareness of emergency or postcoital contraception. RESULTS Of the 284 employees 258 women consented for the interview. All the subjects were literate and majority (97.2%) had an urban background. Of the 190 married women, 154 (81.1%) practiced contraception, among them (73.3%) were regular users. Eighty respondents underwent abortions of which 46 had spontaneous and 34 had induced abortions. Among the available contraceptive methods, condom was the most popular method in 89 (57.8%) followed by Copper T in 38 women (24.7%). The use of hormonal contraception was very low 2.6%. Print and electronic media were the common source of public awareness in 149 subjects (57.7%). Twenty-nine women (11.2%) were aware and only three women used emergency contraception. CONCLUSIONS A high percentage of females in this literate workingwomen population used contraception; however, the awareness of emergency contraception was low.
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Affiliation(s)
- N Takkar
- Department of Obstetrics and Gynaecology, Government Medical College and Hospital, Chandigarh, India.
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Takkar N, Goel P, Saha PK, Dua D. Contraceptive practices and awareness of emergency contraception in educated working women. Indian J Med Sci 2005; 59:143-9. [PMID: 15876778] [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: 05/02/2023]
Abstract
BACKGROUND Regular contraceptive use and emergency contraception are tools to prevent pregnancies. AIMS This study was designed to investigate knowledge and use of contraceptive methods and awareness of emergency contraception among women working in the hospital. SETTINGS Educated workingwomen in a medical college hospital. DESIGN Cross-sectional study. MATERIALS AND METHODS The study was carried out among women belonging to three categories: staff nurses, ministerial staff and others. Married as well as unmarried employees in the reproductive age group were interviewed. A pretested mixed questionnaire containing open as well as closed ended questions was administered. The women were asked questions concerning knowledge and use of contraceptive methods and awareness of emergency or postcoital contraception. RESULTS Of the 284 employees 258 women consented for the interview. All the subjects were literate and majority (97.2%) had an urban background. Of the 190 married women, 154 (81.1%) practiced contraception, among them (73.3%) were regular users. Eighty respondents underwent abortions of which 46 had spontaneous and 34 had induced abortions. Among the available contraceptive methods, condom was the most popular method in 89 (57.8%) followed by Copper T in 38 women (24.7%). The use of hormonal contraception was very low 2.6%. Print and electronic media were the common source of public awareness in 149 subjects (57.7%). Twenty-nine women (11.2%) were aware and only three women used emergency contraception. CONCLUSIONS A high percentage of females in this literate workingwomen population used contraception; however, the awareness of emergency contraception was low.
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Affiliation(s)
- N Takkar
- Department of Obstetrics and Gynaecology, Government Medical College and Hospital, Chandigarh, India.
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Goel P, Radotra A, Singh I, Aggarwal A, Dua D. Effects of passive smoking on outcome in pregnancy. J Postgrad Med 2004; 50:12-6. [PMID: 15047992] [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: 04/29/2023] Open
Abstract
BACKGROUND Adverse health effects of exposure to environmental tobacco smoke (ETS) among non-smokers have been studied occasionally in developing countries. AIMS To study the effects of exposure to ETS on outcome in pregnancy SETTINGS AND DESIGN A cross-sectional study at a secondary level teaching hospital Material and Methods: Consecutive 576 non-smoking women delivering a singleton live baby were studied. A pre-designed structured questionnaire was used to record the details of exposure to ETS at home. The maternal and foetal variables were compared among those who were exposed to ETS vis-à-vis not exposed. Unpaired Student t-test was used for the comparison of continuous variables and Fisher's Exact test was used for categorical variables. Multiple logistic regression analysis was performed after including all variables found to have significant differences on univariate analysis. RESULTS Of the 576 women studied 141 (24%) were exposed to ETS. In the mothers exposed to ETS, there was a significantly higher incidence of pre-term birth (24.1% vs. 16.1%; P = 0.027) and small-for-gestation babies (31.9% vs.17.2%; p<0.001) as compared to unexposed mothers. The mean birth weight of the babies born to the mothers exposed to ETS was 138 g less than that of babies in the unexposed group (2632 -/+577 g vs. 2770 -/+562 g respectively, p = 0.014). The multiple logistic regression analyses showed that ETS exposure during pregnancy was significantly associated with a higher risk of small-for-gestation babies (OR 2.10; 95% CI: 1.27-3.48). CONCLUSION Exposure to ETS during pregnancy is associated with higher risk of having a small-for-gestation baby.
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Affiliation(s)
- P Goel
- Department of Obstetrics and Gynaecology, Government Medical College and Hospital, Chandigarh - 160029, India.
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Dua D, Choudhury M, Prakash K. Altered T and B lymphocytes in multitransfused patients of thalassemia major. Indian Pediatr 1993; 30:893-6. [PMID: 8132281] [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: 01/29/2023]
Abstract
T and B lymphocytes were estimated in 25 patients with Thalassemia major to evaluate their immune status. The percentage of T cells was significantly reduced (p < 0.001) while that of B cells was significantly raised (p < 0.001) in patients of thalassemia major as compared to age and sex matched controls.
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Affiliation(s)
- D Dua
- Department of Pathology, Lady Hardinge Medical College, New Delhi
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Dua D, Agarwal AK, Dalal PK. Imipramine in schizophrenia with depressive symptomatology. Indian J Psychiatry 1990; 32:229-34. [PMID: 21927462 PMCID: PMC2990171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Depressive mood is a common accompaniment of schizophrenia. The present study was taken up with the aim to study the effect of imipramine on depressivse symptoms of schizophrenia. Eighteen patients of schizophrenia with depressive symptoms were studied under a double blind controlled design with a chlorpromazine-imipramine and a chlorpromazine-placebo group. Both the groups showed significant improvement (p< .001) after the 6 week trial and the addition of imipramine to chlorpromazine therapy did not have any advantageous or deleterious effect.
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Affiliation(s)
- D Dua
- Senior Resident, Department of Psychiatry, K. G.'s Medical College, Lucknow
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