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Senapati S, Thakur R, Verma SP, Duggal S, Mishra DP, Das P, Shripathi T, Kumar M, Rana D, Maiti P. Corrigendum to "Layered double hydroxides as effective carrier for anticancer drugs and tailoring of release rate through interlayer anions" [Journal of Controlled Release 224 (2106) 186-198]. J Control Release 2021; 337:645. [PMID: 34391070 DOI: 10.1016/j.jconrel.2021.08.004] [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: 10/20/2022]
Affiliation(s)
- Sudipta Senapati
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221 005, India
| | - Ravi Thakur
- Cell Death Research Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Shiv Prakash Verma
- Centre for Genetic Disorders, Faculty of Science, Banaras Hindu University, Varanasi 221005, India
| | - Shivali Duggal
- Cell Death Research Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Durga Prasad Mishra
- Cell Death Research Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Parimal Das
- Centre for Genetic Disorders, Faculty of Science, Banaras Hindu University, Varanasi 221005, India
| | - T Shripathi
- UGC-DAE CSR, University Campus, Khandwa Road, Indore 452 001, India
| | - Mohan Kumar
- Department of Pathology, Institute of Medical Science, Banaras Hindu University, Varanasi 221005, India
| | - Dipak Rana
- Industrial Membrane Research Institute, Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur St., Ottawa, ON KIN 6N5, Canada
| | - Pralay Maiti
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221 005, India.
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Duggal S, Wanis C. 138 Sexual History, Is it Important? Br J Surg 2021. [DOI: 10.1093/bjs/znab134.118] [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: 11/12/2022]
Abstract
Abstract
Oral candidiasis (OC) is the most common opportunistic infection seen in patients infected with Human Immunodeficiency Virus (HIV) and remains the second AIDS-defining illness in Europe, as it has previously been reported in 11-51% of cases. We present a case of a 70-year-old male who attended the Oral and maxillofacial surgery department with refractory OC and was later diagnosed with HIV after multiple visits to various departments in hospital. Sadly, the patient declined medically and died of multi-organ failure one month following this diagnosis. On reflection, it was found that the patient suffered from the medical conditions and opportunistic infections which can be associated with HIV, but as no sexual history was ascertained this diagnosis was missed. It is prudent that we, as clinicians, take a step back and look at each patient as a whole, in order to ensure complete and holistic care. We argue that sexual history is sometimes vital in achieving a complete history of a patients’ condition, especially in cases of refractory OC where it can be a key piece in the diagnostic puzzle.
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Affiliation(s)
- S Duggal
- Bradford Royal Infirmary, Bradford, United Kingdom
| | - C Wanis
- Bradford Royal Infirmary, Bradford, United Kingdom
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3
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Duggal S, Wanis C, Oktseloglou V. Is sexual history important? Br Dent J 2021; 230:185. [PMID: 33637897 DOI: 10.1038/s41415-021-2749-x] [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: 11/09/2022]
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Abuelniel GM, Duggal MS, Duggal S, Kabel NR. Evaluation of Mineral Trioxide Aggregate and Biodentine as pulpotomy agents in immature first permanent molars with carious pulp exposure: A randomised clinical trial. Eur J Paediatr Dent 2021; 22:19-25. [PMID: 33719478 DOI: 10.23804/ejpd.2021.22.01.04] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AIM There is insufficient evidence on the outcome of pulpotomies in carious exposed young permanent molars with newer biomaterials. This study aimed to compare Mineral Trioxide Aggregate (MTA) and Biodentine as pulpotomy materials in carious exposed vital immature mandibular first permanent molars. MATERIALS AND METHODS Study design: Sixty immature first mandibular permanent molars, with carious exposure were randomly assigned to an MTA or Biodentine group in a split-mouth design. After the amputation of the coronal pulp, the pulp stumps were covered with one of the study materials and coronal restorations placed. Blinded clinical and radiographic evaluations were performed at baseline. Following this there were evaluations at 6, 12 and 18 months where comparisons between and within the two groups were made. RESULTS A high success was observed in both groups for all outcome measures for clinical success, with no significant difference between them. The mean survival time for the Biodentine and MTA groups was (17.8 and 18 months) with 95% confidence interval (17.4-18.2) and (18 .0-18.0) months respectively. Similarly, there were no significant differences between the Biodentine and MTA groups for radiographic success (P<0.001) with an increase in root length and increasing apical closure observed in both groups. CONCLUSIONS Both materials were equally effective in the treatment of cariously exposed vital immature mandibular first permanent molars.
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Affiliation(s)
- G M Abuelniel
- Professor of Paediatric Dentistry, Cairo University, Egypt
| | - M S Duggal
- Dean, College of Dental Medicine, QU Health Qatar University, Doha, Qatar
| | - S Duggal
- Bradford Royal Infirmary OMFS (Oral and maxillofacial Surgery) DCT2, UK
| | - N R Kabel
- Associate Professor of Paediatric Dentistry, Misr University for Sciences and Technology, Egypt
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Rastogi N, Gara RK, Trivedi R, Singh A, Dixit P, Maurya R, Duggal S, Bhatt MLB, Singh S, Mishra DP. Corrigendum to "(6)-Gingerol induced myeloid leukemia cell death is initiated by reactive oxygen species and activation of miR-27b expression" [Free Radic. Biol. Med. 68 (2014) 288-301]. Free Radic Biol Med 2020; 146:404. [PMID: 31474506 DOI: 10.1016/j.freeradbiomed.2019.08.017] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Namrata Rastogi
- Endocrinology Division, Central Drug Research Institute, Uttar Pradesh, 226021, India
| | - Rishi Kumar Gara
- Endocrinology Division, Central Drug Research Institute, Uttar Pradesh, 226021, India
| | - Rachana Trivedi
- Endocrinology Division, Central Drug Research Institute, Uttar Pradesh, 226021, India
| | - Akanksha Singh
- Medicinal and Process Chemistry Division, Central Drug Research Institute, Uttar Pradesh, 226021, India
| | - Preety Dixit
- Medicinal and Process Chemistry Division, Central Drug Research Institute, Uttar Pradesh, 226021, India
| | - Rakesh Maurya
- Medicinal and Process Chemistry Division, Central Drug Research Institute, Uttar Pradesh, 226021, India
| | - Shivali Duggal
- Department of Radiotherapy, CSM Medical University, Lucknow, Uttar Pradesh, 226003, India
| | - M L B Bhatt
- Department of Radiotherapy, CSM Medical University, Lucknow, Uttar Pradesh, 226003, India
| | - Sarika Singh
- Toxicology Division, Central Drug Research Institute, Lucknow, Uttar Pradesh, 226001, India
| | - Durga Prasad Mishra
- Endocrinology Division, Central Drug Research Institute, Uttar Pradesh, 226021, India.
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Mohta M, Duggal S, Chilkoti GT. Randomised double-blind comparison of bolus phenylephrine or ephedrine for treatment of hypotension in women with pre-eclampsia undergoing caesarean section. Anaesthesia 2018. [DOI: 10.1111/anae.14268] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- M. Mohta
- Department of Anaesthesiology and Critical Care; University College of Medical Sciences and Guru Teg Bahadur Hospital; Delhi India
| | - S. Duggal
- Department of Anaesthesiology and Critical Care; University College of Medical Sciences and Guru Teg Bahadur Hospital; Delhi India
| | - G. T. Chilkoti
- Department of Anaesthesiology and Critical Care; University College of Medical Sciences and Guru Teg Bahadur Hospital; Delhi India
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Rastogi N, Duggal S, Singh SK, Porwal K, Srivastava VK, Maurya R, Bhatt MLB, Mishra DP. Proteasome inhibition mediates p53 reactivation and anti-cancer activity of 6-gingerol in cervical cancer cells. Oncotarget 2016; 6:43310-25. [PMID: 26621832 PMCID: PMC4791234 DOI: 10.18632/oncotarget.6383] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Accepted: 11/17/2015] [Indexed: 12/15/2022] Open
Abstract
Human papilloma virus (HPV) expressing E6 and E7 oncoproteins, is known to inactivate the tumor suppressor p53 through proteasomal degradation in cervical cancers. Therefore, use of small molecules for inhibition of proteasome function and induction of p53 reactivation is a promising strategy for induction of apoptosis in cervical cancer cells. The polyphenolic alkanone, 6-Gingerol (6G), present in the pungent extracts of ginger (Zingiber officinale Roscoe) has shown potent anti-tumorigenic and pro-apoptotic activities against a variety of cancers. In this study we explored the molecular mechanism of action of 6G in human cervical cancer cells in vitro and in vivo. 6G potently inhibited proliferation of the HPV positive cervical cancer cells. 6G was found to: (i) inhibit the chymotrypsin activity of proteasomes, (ii) induce reactivation of p53, (iii) increase levels of p21, (iv) induce DNA damage and G2/M cell cycle arrest, (v) alter expression levels of p53-associated apoptotic markers like, cleaved caspase-3 and PARP, and (vi) potentiate the cytotoxicity of cisplatin. 6G treatment induced significant reduction of tumor volume, tumor weight, proteasome inhibition and p53 accumulation in HeLa xenograft tumor cells in vivo. The 6G treatment was devoid of toxic effects as it did not affect body weights, hematological and osteogenic parameters. Taken together, our data underscores the therapeutic and chemosensitizing effects of 6G in the management and treatment of cervical cancer.
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Affiliation(s)
- Namrata Rastogi
- Cell Death Research Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow, India
| | - Shivali Duggal
- Department of Radiotherapy, King George Medical University, Lucknow, India
| | - Shailendra Kumar Singh
- Department of Host Defense, WPI Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
| | - Konica Porwal
- Cell Death Research Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow, India
| | | | - Rakesh Maurya
- Medicinal Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - M L B Bhatt
- Department of Radiotherapy, King George Medical University, Lucknow, India
| | - Durga Prasad Mishra
- Cell Death Research Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow, India
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Yadav PS, Khan MP, Prashar P, Duggal S, Rath SK, Chattopadhyay N, Bandyopadhyay A. Characterization of BMP signaling dependent osteogenesis using a BMP depletable avianized bone marrow stromal cell line (TVA-BMSC). Bone 2016; 91:39-52. [PMID: 27424936 DOI: 10.1016/j.bone.2016.07.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [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: 10/13/2015] [Revised: 06/22/2016] [Accepted: 07/14/2016] [Indexed: 01/08/2023]
Abstract
Adipogenesis, chondrogenesis and osteogenesis are BMP signaling dependent differentiation processes. However, the molecular networks operating downstream of BMP signaling to bring about these distinct fates are yet to be fully elucidated. We have developed a novel Bone Marrow Stromal Cell (BMSC) derived mouse cell line as a powerful in vitro platform to conduct such experiments. This cell line is a derivative of BMSCs isolated from a tamoxifen inducible Bmp2 and Bmp4 double conditional knock-out mouse strain. These BMSCs are immortalized and stably transfected with avian retroviral receptor TVA (TVA-BMSCs), enabling an easy method for stable transduction of multiple genes in these cells. In TVA-BMSCs multiple components of BMP signaling pathway can be manipulated simultaneously. Using this cell line we have demonstrated that for osteogenesis, BMP signaling is required only for the first three days. We have further demonstrated that Klf10, an osteogenic transcription factor which is transcribed in developing bones in a BMP signaling dependent manner, can largely compensate for the loss of BMP signaling during osteogenesis of BMSCs. TVA-BMSCs can undergo chondrogenesis and adipogenesis, and hence may be used for dissection of the molecular networks downstream of BMP signaling in these differentiation processes as well.
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Affiliation(s)
- Prem Swaroop Yadav
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
| | - Mohd Parvez Khan
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
| | - Paritosh Prashar
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
| | - Shivali Duggal
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
| | - Srikanta Kumar Rath
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
| | - Naibedya Chattopadhyay
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
| | - Amitabha Bandyopadhyay
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India.
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Kumar A, Duggal S, Gur R, Rongpharpi SR, Sagar S, Rani M, Dhayal D, Khanijo CM. Safe transportation of biomedical waste in a health care institution. Indian J Med Microbiol 2016; 33:383-6. [PMID: 26068340 DOI: 10.4103/0255-0857.158559] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION The chances of health care waste (Biomedical waste) coming in contact with the health care workers, patients, visitors, sanitary workers, waste handlers, public, rag pickers and animals during transportation are high. MATERIALS AND METHODS The study was conducted over a period of seven months (April 2013-October 2013) in a 500-bedded hospital where the average quantum of biomedical waste is 0.8 kg/bed/day. The issues related to transportation of health care waste from 39 generation sites to the health care waste storage site inside the hospital (intramural transfer) were addressed and analysed in a predesigned proforma. RESULTS The biomedical waste management team inspected the generation sites in the hospital on a daily basis and conformance to the procedures was checked. It was found that waste was collected at scheduled timings in 99.6% occasions; however, compliance to wearing personal protective equipment (PPE) was poor and ranged from 1.22-1.84%. CONCLUSION Transportation of health care waste is a crucial step in its management. Regular training program for all the sections of health care workers with special emphasis on waste handlers is needed.
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Affiliation(s)
| | | | - R Gur
- Department of Microbiology, Dr. Baba Saheb Ambedkar Hospital, Rohini, Delhi - 110 085, India
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Senapati S, Thakur R, Verma SP, Duggal S, Mishra DP, Das P, Shripathi T, Kumar M, Rana D, Maiti P. Layered double hydroxides as effective carrier for anticancer drugs and tailoring of release rate through interlayer anions. J Control Release 2016; 224:186-198. [PMID: 26774219 DOI: 10.1016/j.jconrel.2016.01.016] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [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: 09/16/2015] [Revised: 12/28/2015] [Accepted: 01/11/2016] [Indexed: 10/24/2022]
Abstract
Hydrophobic anticancer drug, raloxifene hydrochloride (RH) is intercalated into a series of magnesium aluminum layered double hydroxides (LDHs) with various charge density anions through ion exchange technique for controlled drug delivery. The particle nature of the LDH in presence of drug is determined through electron microscopy and surface morphology. The release of drug from the RH intercalated LDHs was made very fast or sustained by altering the exchangeable anions followed by the modified Freundlich and parabolic diffusion models. The drug release rate is explained from the interactions between the drug and LDHs along with order-disorder structure of drug intercalated LDHs. Nitrate bound LDH exhibits greater interaction with drug and sustained drug delivery against the loosely interacted phosphate bound LDH-drug, which shows fast release. Cell viability through MTT assay suggests drug intercalated LDHs as better drug delivery vehicle for cancer cell line against poor bioavailability of the pure drug. In vivo study with mice indicates the differential tumor healing which becomes fast for greater drug release system but the body weight index clearly hints at damaged organ in the case of fast release system. Histopathological experiment confirms the damaged liver of the mice treated either with pure drug or phosphate bound LDH-drug, fast release system, vis-à-vis normal liver cell morphology for sluggish drug release system with steady healing rate of tumor. These observations clearly demonstrate that nitrate bound LDH nanoparticle is a potential drug delivery vehicle for anticancer drugs without any side effect.
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Affiliation(s)
- Sudipta Senapati
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221 005, India
| | - Ravi Thakur
- Cell Death Research Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Shiv Prakash Verma
- Centre for Genetic Disorders, Faculty of Science, Banaras Hindu University, Varanasi 221005, India
| | - Shivali Duggal
- Cell Death Research Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Durga Prasad Mishra
- Cell Death Research Laboratory, Division of Endocrinology, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Parimal Das
- Centre for Genetic Disorders, Faculty of Science, Banaras Hindu University, Varanasi 221005, India
| | - T Shripathi
- UGC-DAE CSR, University Campus, Khandwa Road, Indore 452 001, India
| | - Mohan Kumar
- Department of Pathology, Institute of Medical Science, Banaras Hindu University, Varanasi 221005, India
| | - Dipak Rana
- Industrial Membrane Research Institute, Department of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur St., Ottawa, ON KIN 6N5, Canada
| | - Pralay Maiti
- School of Materials Science and Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi 221 005, India.
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Duggal S, Gur R, Nayar R, Rongpharpi SR, Jain D, Gupta RK. Cupriavidus pauculus (Ralstonia paucula) concomitant meningitis and septicemia in a neonate: first case report from India. Indian J Med Microbiol 2015; 31:405-9. [PMID: 24064653 DOI: 10.4103/0255-0857.118871] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [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
Ralstonia paucula (formerly classified as CDC (Centre for Disease Control) group IVc-2, Wautersia paucula; recently renamed as Cupriavidus pauculus) is an environmental Gram-negative bacillus isolated from water sources and can cause serious human infections. Patients recover bacteriologically indicating low virulence. A total of 32 cases have been reported world-wide, but no isolation has ever been reported from cerebrospinal fluid or in India. The first case of R. paucula meningitis and septicemia is being reported here along with the brief summary of cases reported world-wide.
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Affiliation(s)
- S Duggal
- Department of Microbiology, Dr. Baba Saheb Ambedkar Hospital, New Delhi, India
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Gara RK, Srivastava VK, Duggal S, Bagga JK, Bhatt M, Sanyal S, Mishra DP. Shikonin selectively induces apoptosis in human prostate cancer cells through the endoplasmic reticulum stress and mitochondrial apoptotic pathway. J Biomed Sci 2015; 22:26. [PMID: 25879420 PMCID: PMC4389804 DOI: 10.1186/s12929-015-0127-1] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2014] [Accepted: 03/06/2015] [Indexed: 12/12/2022] Open
Abstract
Background Despite the recent progress in screening and therapy, a majority of prostate cancer cases eventually attain hormone refractory and chemo-resistant attributes. Conventional chemotherapeutic strategies are effective at very high doses for only palliative management of these prostate cancers. Therefore chemo-sensitization of prostate cancer cells could be a promising strategy for increasing efficacy of the conventional chemotherapeutic agents in prostate cancer patients. Recent studies have indicated that the chemo-preventive natural agents restore the pro-apoptotic protein expression and induce endoplasmic reticulum stress (ER stress) leading to the inhibition of cellular proliferation and activation of the mitochondrial apoptosis in prostate cancer cells. Therefore reprogramming ER stress-mitochondrial dependent apoptosis could be a potential approach for management of hormone refractory chemoresistant prostate cancers. We aimed to study the effects of the natural naphthoquinone Shikonin in human prostate cancer cells. Results The results indicated that Shikonin induces apoptosis in prostate cancer cells through the dual induction of the endoplasmic reticulum stress and mitochondrial dysfunction. Shikonin induced ROS generation and activated ER stress and calpain activity. Moreover, addition of antioxidants attenuated these effects. Shikonin also induced the mitochondrial apoptotic pathway mediated through the enhanced expression of the pro-apoptotic Bax and inhibition of Bcl-2, disruption of the mitochondrial membrane potential (MMP) followed by the activation of caspase-9, caspase-3, and PARP cleavage. Conclusion The results suggest that shikonin could be useful in the therapeutic management of hormone refractory prostate cancers due to its modulation of the pro-apoptotic ER stress and mitochondrial apoptotic pathways. Electronic supplementary material The online version of this article (doi:10.1186/s12929-015-0127-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Rishi Kumar Gara
- Cell Death Research Laboratory, Endocrinology Division CSIR-Central Drug Research Institute, Lucknow, 226031, India. .,Center for Cancer Research, UTHSC, Memphis, TN, USA.
| | | | - Shivali Duggal
- Department of Radiotherapy, King George Medical University, Lucknow, 226003, India.
| | - Jaspreet Kaur Bagga
- Cell Death Research Laboratory, Endocrinology Division CSIR-Central Drug Research Institute, Lucknow, 226031, India.
| | - Mlb Bhatt
- Department of Radiotherapy, King George Medical University, Lucknow, 226003, India.
| | - Sabyasachi Sanyal
- Division of Biochemistry, CSIR-Central Drug Research Institute, Lucknow, 226031, India.
| | - Durga Prasad Mishra
- Cell Death Research Laboratory, Endocrinology Division CSIR-Central Drug Research Institute, Lucknow, 226031, India.
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Duggal S, Rongpharpi SR. Mucor-culture/molecular analysis necessary for identification. Indian J Med Microbiol 2015; 33 Suppl:163-4. [DOI: 10.4103/0255-0857.150960] [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]
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Tripathi AK, Dwivedi A, Pal MK, Rastogi N, Gupta P, Ali S, Prabhu MBH, Kushwaha HN, Ray RS, Singh SK, Duggal S, Narayan B, Mishra DP. Attenuated neuroprotective effect of riboflavin under UV-B irradiation via miR-203/c-Jun signaling pathway in vivo and in vitro. J Biomed Sci 2014; 21:39. [PMID: 24884571 PMCID: PMC4049496 DOI: 10.1186/1423-0127-21-39] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2013] [Accepted: 04/15/2014] [Indexed: 12/28/2022] Open
Abstract
Background Riboflavin (RF) or vitamin B2 is known to have neuroprotective effects. In the present study, we report the attenuation of the neuroprotective effects of RF under UV-B irradiation. Preconditioning of UV-B irradiated riboflavin (UV-B-RF) showed attenuated neuroprotective effects compared to that of RF in SH-SY5Y neuroblostoma cell line and primary cortical neurons in vitro and a rat model of cerebral ischemia in vivo. Results Results indicated that RF pretreatment significantly inhibited cell death and reduced LDH secretion compared to that of the UV-B-RF pretreatment in primary cortical neuron cultures subjected to oxygen glucose deprivation in vitro and cortical brain tissue subjected to ischemic injury in vivo. Further mechanistic studies using cortical neuron cultures revealed that RF treatment induced increased miR-203 expression which in turn inhibited c-Jun expression and increased neuronal cell survival. Functional assays clearly demonstrated that the UV-B-RF preconditioning failed to sustain the increased expression of miR-203 and the decreased levels of c-Jun, mediating the neuroprotective effects of RF. UV-B irradiation attenuated the neuroprotective effects of RF through modulation of the miR-203/c-Jun signaling pathway. Conclusion Thus, the ability of UV-B to serve as a modulator of this neuroprotective signaling pathway warrants further studies into its role as a regulator of other cytoprotective/neuroprotective signaling pathways.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Durga Prasad Mishra
- Division of Endocrinology, CSIR-Central Drug Research Institute, Jankipuram Extension, Lucknow 226031, India.
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Rastogi N, Gara RK, Trivedi R, Singh A, Dixit P, Maurya R, Duggal S, Bhatt MLB, Singh S, Mishra DP. (6)-Gingerolinduced myeloid leukemia cell death is initiated by reactive oxygen species and activation of miR-27b expression. Free Radic Biol Med 2014; 68:288-301. [PMID: 24378438 DOI: 10.1016/j.freeradbiomed.2013.12.016] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2013] [Revised: 12/12/2013] [Accepted: 12/16/2013] [Indexed: 12/31/2022]
Abstract
The natural polyphenolic alkanone (6)-gingerol (6G) has established anti-inflammatory and antitumoral properties. However, its precise mechanism of action in myeloid leukemia cells is unclear. In this study, we investigated the effects of 6G on myeloid leukemia cells in vitro and in vivo. The results of this study showed that 6G inhibited proliferation of myeloid leukemia cell lines and primary myeloid leukemia cells while sparing the normal peripheral blood mononuclear cells, in a concentration- and time-dependent manner. Mechanistic studies using U937 and K562 cell lines revealed that 6G treatment induced reactive oxygen species (ROS) generation by inhibiting mitochondrial respiratory complex I (MRC I), which in turn increased the expression of the oxidative stress response-associated microRNA miR-27b and DNA damage. Elevated miR-27b expression inhibited PPARγ, with subsequent inhibition of the inflammatory cytokine gene expression associated with the oncogenic NF-κB pathway, whereas the increased DNA damage led to G2/M cell cycle arrest. The 6G induced effects were abolished in the presence of anti-miR-27b or the ROS scavenger N-acetylcysteine. In addition, the results of the in vivo xenograft experiments in mice indicated that 6G treatment inhibited tumor cell proliferation and induced apoptosis, in agreement with the in vitro studies. Our data provide new evidence that 6G-induced myeloid leukemia cell death is initiated by reactive oxygen species and mediated through an increase in miR-27b expression and DNA damage. The dual induction of increased miR-27b expression and DNA damage-associated cell cycle arrest by 6G may have implications for myeloid leukemia treatment.
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Affiliation(s)
- Namrata Rastogi
- Endocrinology Division, Central Drug Research Institute, Uttar Pradesh 226021, India
| | - Rishi Kumar Gara
- Endocrinology Division, Central Drug Research Institute, Uttar Pradesh 226021, India
| | - Rachana Trivedi
- Endocrinology Division, Central Drug Research Institute, Uttar Pradesh 226021, India
| | - Akanksha Singh
- Medicinal and Process Chemistry Division, Central Drug Research Institute, Uttar Pradesh 226021, India
| | - Preety Dixit
- Medicinal and Process Chemistry Division, Central Drug Research Institute, Uttar Pradesh 226021, India
| | - Rakesh Maurya
- Medicinal and Process Chemistry Division, Central Drug Research Institute, Uttar Pradesh 226021, India
| | - Shivali Duggal
- Department of Radiotherapy, CSM Medical University, Lucknow, Uttar Pradesh 226003, India
| | - M L B Bhatt
- Department of Radiotherapy, CSM Medical University, Lucknow, Uttar Pradesh 226003, India
| | - Sarika Singh
- Toxicology Division, Central Drug Research Institute, Lucknow, Uttar Pradesh 226001, India
| | - Durga Prasad Mishra
- Endocrinology Division, Central Drug Research Institute, Uttar Pradesh 226021, India.
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Tayal S, Duggal S, Bandyopadhyay P, Aggarwal A, Tandon S, Tandon C. Cytoprotective role of the aqueous extract of Terminalia chebula on renal epithelial cells. Int Braz J Urol 2012; 38:204-13; discussion 213-4. [DOI: 10.1590/s1677-55382012000200008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/26/2011] [Indexed: 11/22/2022] Open
Affiliation(s)
- S. Tayal
- Jaypee University of Information Technology, India
| | - S. Duggal
- Jaypee University of Information Technology, India
| | | | - A. Aggarwal
- Jaypee University of Information Technology, India
| | - S. Tandon
- Jaypee University of Information Technology, India
| | - C. Tandon
- Jaypee University of Information Technology, India
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17
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Duggal S, Brinchmann JE. Importance of serum source for the in vitro replicative senescence of human bone marrow derived mesenchymal stem cells. J Cell Physiol 2011; 226:2908-15. [PMID: 21302288 DOI: 10.1002/jcp.22637] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Human mesenchymal stem cells (hMSCs) may be used for therapeutic applications. Culture conditions such as the serum source may impact on cell quality and the onset of replicative senescence. We have examined the effect of culturing hMSCs in autologous serum (AS) versus fetal bovine serum (FBS) on factors involved in in vitro replicative senescence. hMSCs from four donors were cultured in 10% FBS or 10% AS until they reached senescence. Cells were harvested at early passage and near senescence to study factors known to be involved in cellular senescence. The number of population doublings till senescence was similar for cells cultured in FBS, but varied greatly for hMSCs cultured in AS. FBS cells accumulated in S phase of cell cycle. This could not be explained by increased expression of cell cycle inhibitor proteins. Heat shock proteins were upregulated in AS compared to FBS cells. Reactive oxygen species and nitric oxide were upregulated in senescent FBS cells. Telomeres were shorter in senescent cells, more significantly in FBS cells. The source of serum was a determinant for the time till senescence in cultured hMSC. Serum source affected aspects of cell cycle regulation and the levels of heat shock proteins. Several mechanisms are likely to be responsible for replicative senescence in hMSC. Insight into the molecular details of how serum factors impacts on these mechanisms is important for the safe use of hMSCs in clinical applications.
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Affiliation(s)
- Shivali Duggal
- Norwegian Center for Stem Cell Research, Oslo University Hospital Rikshospitalet
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Abstract
Sparganosis, also known as larval diphyllobothriasis, is a rare disease of humans as man is not a natural host in the life cycle of Spirometra spp. Diagnosis of the latter is difficult as it mimics other conditions that commonly cause subcutaneous or visceral fluid collection. Clinical diagnosis of this particular case was also erroneously labelled as tuberculosis but later labelled as a case of sparganosis. To the best of our knowledge, this is the first case from India where a sparganum-like parasite was isolated in drain fluid from the perinephric area.
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Affiliation(s)
- S Duggal
- Department of Microbiology, Dr B. L. Kapur Memorial Hospital, New Delhi 110 005, India.
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Duggal S, Jesaiwal SK, Tandon N, Chugh TD. Direct inoculation on Phoenix panels for identification and antimicrobial susceptibility from positive BACTEC cultures: First study from India. Indian J Med Microbiol 2011; 29:283-7. [DOI: 10.4103/0255-0857.83914] [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: 11/04/2022]
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Gupta N, Samantaray JC, Duggal S, Srivastava V, Dhull CS, Chaudhary U. Acanthamoeba keratitis with Curvularia co-infection. Indian J Med Microbiol 2010; 28:67-71. [DOI: 10.4103/0255-0857.58736] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Abstract
HIV-induced immunosuppression paves the way for several infections, tuberculosis being very common in our country. Female genital tuberculosis (FGTB), presenting as menstrual irregularities, is a diagnostic challenge in an adolescent female when these may be considered normal. The present case is of a young female who presented with menstrual irregularities, diagnosed subsequently as a case of genital tuberculosis. Microbiological relapse after anti-tubercular treatment of six months caused suspicion of a co-existing immunodeficiency and investigations revealed HIV co-infection; thus emphasizing the need of HIV testing in all patients of tuberculosis for timely diagnosis and treatment support thereafter.
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Affiliation(s)
- S Duggal
- Department of Microbiology, Dr. Ram Manohar Lohia Hospital, New Delhi - 110 001, India.
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Duggal S, Frønsdal KB, Szöke K, Shahdadfar A, Melvik JE, Brinchmann JE. Phenotype and gene expression of human mesenchymal stem cells in alginate scaffolds. Tissue Eng Part A 2009; 15:1763-73. [PMID: 19115828 DOI: 10.1089/ten.tea.2008.0306] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Human mesenchymal stem cells (MSC) are popular candidates for tissue engineering. MSC are defined by their properties in two-dimensional (2D) culture systems. Cells in 2D are known to differ from their in vivo counterparts in cell shape, proliferation, and gene expression. Little is so far known about the phenotype and gene expression of cells in three-dimensional (3D) culture systems. To begin to unravel the impact of 3D versus 2D culture conditions on MSC, we have established MSC from adipose tissue and bone marrow in 3D cultures in alginate beads covalently modified with the tripeptide arginine-glycine-aspartic acid (RGD), the integrin-binding motif found in several molecules within the extracellular matrix. The MSC changed from their fibroblastoid shape (2D) to a small, compact shape when embedded in RGD alginate (3D). High viability was maintained throughout the experiment. The MSC retained expression of integrins known to bind RGD, and practically ceased to proliferate. Microarray analysis revealed that the gene expression in cells in RGD alginate was different both from the cells cultured in 2D and from prospectively isolated, uncultured MSC, but more similar to 2D cells. As alginate may be entirely dissolved, leaving the cells as single cell suspensions for various analyses, this represents a useful model for the study of cells in 3D cultures.
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Affiliation(s)
- Shivali Duggal
- Institute of Immunology, Rikshospitalet University Hospital, Oslo, Norway
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Hildrestrand GA, Duggal S, Bjørås M, Luna L, Brinchmann JE. Modulation of DNA glycosylase activities in mesenchymal stem cells. Exp Cell Res 2009; 315:2558-67. [PMID: 19477173 DOI: 10.1016/j.yexcr.2009.05.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2009] [Revised: 04/28/2009] [Accepted: 05/19/2009] [Indexed: 11/19/2022]
Abstract
Adipose-tissue derived mesenchymal stem cells (AT-MSCs) are a promising tool for use in cell-based therapies. However, in vitro expansion is required to obtain clinically relevant cell numbers, and this might increase the chance of genomic instability. DNA repair is crucial for maintaining DNA integrity. Here we have compared the initial step of base excision repair in uncultured and cultured AT-MSCs by analysis of base removal activities and expression levels of relevant DNA glycosylases. Uracil, 5-hydroxyuracil and ethenoadenine removal activities were upregulated in cultured cells compared to uncultured cells. In contrast, both the 8-oxo-7,8-dihydroguanine (8-oxoG) removal activity and the concentration of 8-oxoG bases in the DNA were reduced in the cultured cells. Gene expression analysis showed no substantial changes in mRNA expression. The glycosylase activities remained stable through at least 12 passages, suggesting that DNA repair is proficient through the period required for in vitro expansion of AT-MSCs to clinically relevant numbers.
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Affiliation(s)
- Gunn A Hildrestrand
- Centre for Molecular Biology and Neuroscience and Institute of Medical Microbiology, Rikshospitalet University Hospital, Oslo, Norway
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Dahl JA, Duggal S, Coulston N, Millar D, Melki J, Shahdadfar A, Brinchmann JE, Collas P. Genetic and epigenetic instability of human bone marrow mesenchymal stem cells expanded in autologous serum or fetal bovine serum. Int J Dev Biol 2009; 52:1033-42. [PMID: 18956336 DOI: 10.1387/ijdb.082663jd] [Citation(s) in RCA: 131] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Culture of mesenchymal stem cells (MSCs) under conditions promoting proliferation and differentiation, while supporting genomic and epigenetic stability, is essential for therapeutic use. We report here the extent of genome-wide DNA gains and losses and of DNA methylation instability on 170 cancer-related promoters in bone marrow (BM) MSCs during culture to late passage in medium containing fetal bovine serum (FBS) or autologous serum (AS). Comparative genomic hybridization indicates that expansion of BMMSCs elicits primarily telomeric deletions in a subpopulation of cells, the extent of which varies between donors. However, late passage cultures in AS consistently display normal DNA copy numbers. Combined bisulfite restriction analysis and bisulfite sequencing show that although DNA methylation states are overall stable in culture, AS exhibits stronger propensity than FBS to maintain unmethylated states. Comparison of DNA methylation in BMMSCs with freshly isolated and cultured adipose stem cells (ASCs) also reveals that most genes unmethylated in both BMMSCs and ASCs in early passage are also unmethylated in uncultured ASCs. We conclude that (i) BMMSCs expanded in AS or FBS may display localized genetic alterations, (ii) AS tends to generate more consistent genomic backgrounds and DNA methylation patterns, and (iii) the unmethylated state of uncultured MSCs is more likely to be maintained in culture than the methylated state.
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Affiliation(s)
- John-Arne Dahl
- Department of Biochemistry, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, and Rikshospitalet Medical Centre, Oslo, Norway
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Duggal S. For the record. CMAJ 2008; 178:817. [DOI: 10.1503/cmaj.080294] [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: 11/01/2022] Open
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Duggal S, Duggal N, Charoo H, Mahajan RK. Recent outbreak of meningococcal meningitis--a microbiological study with brief review of literature. J Commun Dis 2007; 39:209-216. [PMID: 18697589] [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: 05/26/2023]
Abstract
Meningococcal disease presents in various clinical forms, most common being meningitis and meningococcemia. A spurt of meningococcal cases was seen in medicine and pediatric wards of Dr. Ram Manohar Lohia Hospital during the recent outbreak from Dec 2005 - June 2006. These had presented either with the classical features of acute purulent meningitis or as fever with rash. The patients were investigated microbiologically for the causative organism which was identified as Neisseria meningitidis in 257 out of 531 cases (48.39%). The classic finding of gram negative diplococci on gram stain remained the mainstay of diagnosis. N. meningitidis isolates from culture were sensitive to all commonly used antibiotics.
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Affiliation(s)
- S Duggal
- Dept. of Microbiology, Dr. Ram Manohar Lohia Hospital, New Delhi.
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28
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Verma A, Kilicaslan F, Martin DO, Minor S, Starling R, Marrouche NF, Almahammed S, Wazni OM, Duggal S, Zuzek R, Yamaji H, Cummings J, Chung MK, Tchou PJ, Natale A. Preimplantation B-type natriuretic peptide concentration is an independent predictor of future appropriate implantable defibrillator therapies. Heart 2005; 92:190-5. [PMID: 15923278 PMCID: PMC1860790 DOI: 10.1136/hrt.2004.058198] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.3] [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: 11/04/2022] Open
Abstract
OBJECTIVE To assess prospectively whether preimplantation B-type natriuretic peptide (BNP) and C reactive protein (CRP) concentrations predict future appropriate therapies from an implantable cardioverter-defibrillator (ICD). DESIGN AND SETTING Prospective cohort study conducted in a tertiary cardiac care centre. METHODS 345 consecutive patients undergoing first time ICD implantation were prospectively studied. Serum BNP and CRP concentrations were obtained the day before ICD implantation. Patients were followed up with device interrogation to assess for appropriate shocks or antitachycardia pacing. Inappropriate therapies were excluded. Mean (SD) follow up was 13 (5) months. RESULTS Patients had ischaemic (71%), primary dilated (17%), and valvar or other cardiomyopathies (12%). About half (52%) had ICDs implanted for primary prevention. Sixty three (18%) received appropriate ICD therapies. Serum creatinine, beta blocker, statin, and angiotensin converting enzyme inhibitor usage did not differ between therapy and no therapy groups. By univariate comparison, ejection fraction (p = 0.048), not taking amiodarone (p = 0.033), and BNP concentration (p = 0.0003) were risk factors for ICD therapy. However, by Cox regression multivariate analysis, only BNP above the 50th centile was a significant predictor (hazard ratio 2.19, 95% confidence interval 1.07 to 4.71, p = 0.040). Median BNP was 573 ng/l versus 243 ng/l in therapy and no therapy patients, respectively (p = 0.0003). More patients with BNP above the 50th centile (27% v 10%, p = 0.006) received ICD therapies. CONCLUSIONS A single preimplantation BNP concentration determination is independently predictive of ICD therapies in patients with cardiomyopathies undergoing first time ICD implantation. CRP was not independently predictive of ICD therapies when compared with BNP.
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Affiliation(s)
- A Verma
- Department of Cardiology, Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
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Simpson ME, Duggal S, Keiver K. Prenatal ethanol exposure has differential effects on fetal growth and skeletal ossification. Bone 2005; 36:521-32. [PMID: 15777686 DOI: 10.1016/j.bone.2004.11.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2004] [Revised: 09/29/2004] [Accepted: 11/12/2004] [Indexed: 10/25/2022]
Abstract
There is increasing evidence suggesting that the intrauterine environment may influence long-term bone health and the risk of developing osteoporosis in later life. Alcohol (ethanol) is one factor whose presence in the prenatal environment has long-term consequences for the offspring, including permanent growth retardation. Moreover, prenatal ethanol exposure retards both fetal and postnatal bone development. It is unknown if ethanol's effects on skeletal development result from generalized growth retardation or effects specific to skeletal development. Furthermore, the level of ethanol exposure required to produce skeletal effects is unknown. The objectives of this study were to determine (1) if ethanol exerts specific effects on fetal skeletal development that are independent from its effects on general growth, and (2) the level of prenatal ethanol exposure required to affect fetal growth and skeletal ossification. Rats were fed isocaloric diets with ethanol (15%, 25%, or 36% ethanol-derived calories (EDC), approximating low, moderate, and high exposure levels), or without ethanol (pair-fed, PF, or control, C groups), prior to and throughout 21 days of gestation. The degree of E-induced delay in development was determined by comparison of E fetuses on d21 gestation to C fetuses on d17-d21 gestation. Prenatal ethanol exposure at 36% EDC decreased fetal body weight, length, and skeletal ossification compared with PF and C fetuses on d21 gestation. Importantly, effects on ossification, but not body weight or length, were also seen at the more moderate dose of 25% EDC, and the number of bones affected and the severity of effects on ossification tended to increase with dose of ethanol. Comparison of E fetuses on d21 gestation with C fetuses from d17 to 21 gestation indicated that the ethanol-induced delay in development differed for weight and skeletal ossification, and was not uniform among skeletal sites. Taken together, these data suggest that prenatal ethanol exposure has effects on fetal skeletal development that are independent of those on overall fetal growth, and that these effects occur even at moderate levels of maternal drinking. Effects of prenatal ethanol exposure on fetal skeletal development could potentially increase the offspring's risk of osteoporosis later in life.
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Affiliation(s)
- M E Simpson
- Food, Nutrition and Health, Faculty of Agricultural Sciences, The University of British Columbia, 2205 East Mall, Vancouver, BC, Canada
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Abstract
Antecedents of depressive symptomatology in childhood and adolescence were examined in a prospective longitudinal study of at-risk youth (n = 168) from families of lower socioeconomic status. Relations between family context factors, maternal depressive symptoms, and depressive symptoms in childhood and adolescence were examined, with a focus on early family relationship factors rarely available for analysis in longitudinal data sets. Results suggest the possibility of etiological differences between depressive symptoms in childhood and in adolescence. Depressive symptomatology in childhood was predicted by the overall family context. Cumulative effects of maternal depressive symptomatology, early care lacking in emotional supportiveness, abuse, and family stressors were observed. Depressive symptomatology in adolescence, on the other hand, was specifically associated with maternal depression and early care lacking in emotional supportiveness. Moreover, an intriguing sex difference emerged: maternal depressive symptomatology was strongly associated with depressive symptomatology in adolescence for females, but for males supportive early care appeared more relevant.
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Affiliation(s)
- S Duggal
- University of Minnesota, Minneapolis, USA
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Duggal S, Malkoff-Schwartz S, Birmaher B, Anderson BP, Matty MK, Houck PR, Bailey-Orr M, Williamson DE, Frank E. Assessment of life stress in adolescents: self-report versus interview methods. J Am Acad Child Adolesc Psychiatry 2000; 39:445-52. [PMID: 10761346 DOI: 10.1097/00004583-200004000-00013] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To compare the investigator-based Life Events and Difficulties Schedule (LEDS) with a self-report measure (Life Events Checklist [LEC]) for the purpose of measuring life stress in adolescents with and without a diagnosis of major depressive disorder (MDD). METHOD Adolescents (aged 13-18 years) with a recent episode of MDD based on DSM-III-R (n = 35) and normal controls free of any Axis I lifetime psychiatric disorder (n = 35) were assessed using both the LEC and the LEDS. RESULTS Both measures predicted membership in the depressed and nondepressed groups of adolescents. Adolescents in the depressed group were more likely to report a severe event on the LEDS (97%) than adolescents in the nondepressed group (66%) (p = .001). Similarly, subjects in the depressed group endorsed a greater number of negative events (mean = 8.1) on the LEC than subjects in the nondepressed group (mean = 3.0) (p = .0001). An examination of potential provoking agents for episodes of major depression revealed that the LEC captured only 32% of preonset severe events and 36% of preonset major difficulties identified by the LEDS. CONCLUSIONS Interpreted in light of relative advantages and disadvantages, the results suggest that checklist and interview measures each have distinct advantages depending on the purpose for which they are being used.
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Affiliation(s)
- S Duggal
- Department of Psychiatry, Western Psychiatric Institute and Clinic, University of Pittsburgh School of Medicine, PA 15213, USA
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Abstract
A case of recovered memory of childhood trauma is reported with documented sexual trauma in early childhood, chronicled evidence of the absence of memory for traumatic experience over a period of time, and substantial evidence of 'spontaneous' recovery of memory. This account contains the first available prospective report of memory loss in a case in which there is both documented evidence of trauma and evidence of recovery of memory. The case emerged as part of a broadband, large-scale study of children followed closely from birth to adulthood which was not focused on memory for trauma. Prospective data gathered in a neutral research context, corroborated and supplemented by retrospective information, circumvent many limitations of previous retrospective accounts of recovered memories.
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Affiliation(s)
- S Duggal
- Institute of Child Development, University of Minnesota, Minneapolis 55455, USA
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Narayansingh G, Ramsewak S, Duggal S. Late presentation of vulval carcinoma in Trinidad. Trop Doct 1993; 23:131-2. [PMID: 8356748 DOI: 10.1177/004947559302300319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Abstract
As part of a nutritional surveillance system of primary school children the relation between growth and vegetarianism in the Urdu, Gujarati, and Punjabi groups was explored. The aim of the analysis was to ascertain if vegetarian children from ethnic minorities are at a disadvantage in terms of nutritional status within their group of origin. Data for 80.7% of 473 Urdu children, 86.6% of 551 Gujarati children, and 84.4% of 1265 Punjabi children were available for the analysis. No significant differences in weight-for-height and triceps skinfold were found between vegetarians and non-vegetarians even after adjustment for potential confounding variables. Vegetarian girls tended to be shorter than non-vegetarian girls in all Asian groups, although this difference reached a statistically significant level (p less than 0.01) only in the Urdu group. Although our findings should be interpreted with caution they indicate that health visitors and other health staff should be aware of the possible contribution of vegetarianism to the nutritional status of Asian girls.
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Affiliation(s)
- R J Rona
- Department of Community Medicine, United Medical School of Guy's Hospital, London
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Sanyal SK, Berry AM, Duggal S, Hooja V, Ghosh S. Sequelae of the initial attack of acute rheumatic fever in children from north India. A prospective 5-year follow-up study. Circulation 1982; 65:375-9. [PMID: 7053897 DOI: 10.1161/01.cir.65.2.375] [Citation(s) in RCA: 64] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
We determined the outcome of acute rheumatic fever in 85 children from North India who had received regular antistreptococcal prophylaxis after their first attack. By the end of the 5-year follow-up, 33 patients had rheumatic heart disease. Mitral insufficiency, the most common valvular lesion, appeared in 91% of the patients, whereas mitral stenosis developed in only 18%. Initial carditis, congestive heart failure, cardiomegaly or moderate-to-severe mitral insufficiency significantly increased the risk of rheumatic heart disease (p less than 0.001). The recurrence rate of acute rheumatic fever in children who received continuous prophylaxis was 0.006 per patient-year. Most recurrence (92%) mimicked the first attack and produced further cardiac damage in five patients with carditis and in one patient with chorea. Cardiac status during the first attack of rheumatic fever and the continuity of prophylaxis were the major determinants of outcome. Statistical comparisons disclosed that with continuous prophylaxis, the prevalence rate, evolution and clinical spectrum of the sequelae of acute rheumatic fever in children from India do not differ significantly from those in the West.
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Bhargava SK, Duggal S, Ramanujacharyulu TK, Choudhury P. Pubertal changes and their interrelationship in Indian girls. Indian Pediatr 1980; 17:657-65. [PMID: 7228356] [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: 01/24/2023]
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Bhargava SK, Duggal S, Ramanujacharyulu TK, Choudhury P. Pattern of pubertal changes and their inter-relationship in boys. Indian Pediatr 1979; 16:849-53. [PMID: 535996] [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: 12/23/2022]
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Mittal SK, Zaidi I, Puri N, Duggal S, Rath B, Bhargava SK. Communication disabilities: emerging problems of childhood. Indian Pediatr 1977; 14:811-5. [PMID: 612611] [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: 12/23/2022]
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Duggal S. Special laws, relating to children. Indian Pediatr 1976; 13:65-6. [PMID: 1278962] [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: 12/26/2022]
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